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-rw-r--r--drivers/isdn/gigaset/Kconfig25
-rw-r--r--drivers/isdn/gigaset/Makefile5
-rw-r--r--drivers/isdn/gigaset/asyncdata.c662
-rw-r--r--drivers/isdn/gigaset/bas-gigaset.c76
-rw-r--r--drivers/isdn/gigaset/capi.c2292
-rw-r--r--drivers/isdn/gigaset/common.c139
-rw-r--r--drivers/isdn/gigaset/dummyll.c68
-rw-r--r--drivers/isdn/gigaset/ev-layer.c578
-rw-r--r--drivers/isdn/gigaset/gigaset.h176
-rw-r--r--drivers/isdn/gigaset/i4l.c563
-rw-r--r--drivers/isdn/gigaset/interface.c41
-rw-r--r--drivers/isdn/gigaset/isocdata.c186
-rw-r--r--drivers/isdn/gigaset/proc.c2
-rw-r--r--drivers/isdn/gigaset/ser-gigaset.c56
-rw-r--r--drivers/isdn/gigaset/usb-gigaset.c71
15 files changed, 3736 insertions, 1204 deletions
diff --git a/drivers/isdn/gigaset/Kconfig b/drivers/isdn/gigaset/Kconfig
index 18ab8652aa5..dcefedc7044 100644
--- a/drivers/isdn/gigaset/Kconfig
+++ b/drivers/isdn/gigaset/Kconfig
@@ -1,6 +1,5 @@
menuconfig ISDN_DRV_GIGASET
tristate "Siemens Gigaset support"
- depends on ISDN_I4L
select CRC_CCITT
select BITREVERSE
help
@@ -11,9 +10,33 @@ menuconfig ISDN_DRV_GIGASET
If you have one of these devices, say M here and for at least
one of the connection specific parts that follow.
This will build a module called "gigaset".
+ Note: If you build your ISDN subsystem (ISDN_CAPI or ISDN_I4L)
+ as a module, you have to build this driver as a module too,
+ otherwise the Gigaset device won't show up as an ISDN device.
if ISDN_DRV_GIGASET
+config GIGASET_CAPI
+ bool "Gigaset CAPI support (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ depends on ISDN_CAPI='y'||(ISDN_CAPI='m'&&ISDN_DRV_GIGASET='m')
+ default ISDN_I4L='n'
+ help
+ Build the Gigaset driver as a CAPI 2.0 driver interfacing with
+ the Kernel CAPI subsystem. To use it with the old ISDN4Linux
+ subsystem you'll have to enable the capidrv glue driver.
+ (select ISDN_CAPI_CAPIDRV.)
+ Say N to build the old native ISDN4Linux variant.
+
+config GIGASET_I4L
+ bool
+ depends on ISDN_I4L='y'||(ISDN_I4L='m'&&ISDN_DRV_GIGASET='m')
+ default !GIGASET_CAPI
+
+config GIGASET_DUMMYLL
+ bool
+ default !GIGASET_CAPI&&!GIGASET_I4L
+
config GIGASET_BASE
tristate "Gigaset base station support"
depends on USB
diff --git a/drivers/isdn/gigaset/Makefile b/drivers/isdn/gigaset/Makefile
index e9d3189f56b..c453b72272a 100644
--- a/drivers/isdn/gigaset/Makefile
+++ b/drivers/isdn/gigaset/Makefile
@@ -1,4 +1,7 @@
-gigaset-y := common.o interface.o proc.o ev-layer.o i4l.o asyncdata.o
+gigaset-y := common.o interface.o proc.o ev-layer.o asyncdata.o
+gigaset-$(CONFIG_GIGASET_CAPI) += capi.o
+gigaset-$(CONFIG_GIGASET_I4L) += i4l.o
+gigaset-$(CONFIG_GIGASET_DUMMYLL) += dummyll.o
usb_gigaset-y := usb-gigaset.o
ser_gigaset-y := ser-gigaset.o
bas_gigaset-y := bas-gigaset.o isocdata.o
diff --git a/drivers/isdn/gigaset/asyncdata.c b/drivers/isdn/gigaset/asyncdata.c
index 44a58e6f8f6..ccb2a7b7c41 100644
--- a/drivers/isdn/gigaset/asyncdata.c
+++ b/drivers/isdn/gigaset/asyncdata.c
@@ -19,7 +19,7 @@
/* check if byte must be stuffed/escaped
* I'm not sure which data should be encoded.
- * Therefore I will go the hard way and decode every value
+ * Therefore I will go the hard way and encode every value
* less than 0x20, the flag sequence and the control escape char.
*/
static inline int muststuff(unsigned char c)
@@ -35,303 +35,383 @@ static inline int muststuff(unsigned char c)
/* == data input =========================================================== */
-/* process a block of received bytes in command mode (modem response)
+/* process a block of received bytes in command mode
+ * (mstate != MS_LOCKED && (inputstate & INS_command))
+ * Append received bytes to the command response buffer and forward them
+ * line by line to the response handler. Exit whenever a mode/state change
+ * might have occurred.
* Return value:
* number of processed bytes
*/
-static inline int cmd_loop(unsigned char c, unsigned char *src, int numbytes,
- struct inbuf_t *inbuf)
+static unsigned cmd_loop(unsigned numbytes, struct inbuf_t *inbuf)
{
+ unsigned char *src = inbuf->data + inbuf->head;
struct cardstate *cs = inbuf->cs;
- unsigned cbytes = cs->cbytes;
- int inputstate = inbuf->inputstate;
- int startbytes = numbytes;
-
- for (;;) {
- cs->respdata[cbytes] = c;
- if (c == 10 || c == 13) {
- gig_dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
+ unsigned cbytes = cs->cbytes;
+ unsigned procbytes = 0;
+ unsigned char c;
+
+ while (procbytes < numbytes) {
+ c = *src++;
+ procbytes++;
+
+ switch (c) {
+ case '\n':
+ if (cbytes == 0 && cs->respdata[0] == '\r') {
+ /* collapse LF with preceding CR */
+ cs->respdata[0] = 0;
+ break;
+ }
+ /* --v-- fall through --v-- */
+ case '\r':
+ /* end of message line, pass to response handler */
+ gig_dbg(DEBUG_TRANSCMD, "%s: End of Message (%d Bytes)",
__func__, cbytes);
+ if (cbytes >= MAX_RESP_SIZE) {
+ dev_warn(cs->dev, "response too large (%d)\n",
+ cbytes);
+ cbytes = MAX_RESP_SIZE;
+ }
cs->cbytes = cbytes;
- gigaset_handle_modem_response(cs); /* can change
- cs->dle */
+ gigaset_handle_modem_response(cs);
cbytes = 0;
- if (cs->dle &&
- !(inputstate & INS_DLE_command)) {
- inputstate &= ~INS_command;
- break;
- }
- } else {
- /* advance in line buffer, checking for overflow */
- if (cbytes < MAX_RESP_SIZE - 1)
- cbytes++;
- else
- dev_warn(cs->dev, "response too large\n");
- }
+ /* store EOL byte for CRLF collapsing */
+ cs->respdata[0] = c;
- if (!numbytes)
- break;
- c = *src++;
- --numbytes;
- if (c == DLE_FLAG &&
- (cs->dle || inputstate & INS_DLE_command)) {
- inputstate |= INS_DLE_char;
- break;
+ /* cs->dle may have changed */
+ if (cs->dle && !(inbuf->inputstate & INS_DLE_command))
+ inbuf->inputstate &= ~INS_command;
+
+ /* return for reevaluating state */
+ goto exit;
+
+ case DLE_FLAG:
+ if (inbuf->inputstate & INS_DLE_char) {
+ /* quoted DLE: clear quote flag */
+ inbuf->inputstate &= ~INS_DLE_char;
+ } else if (cs->dle ||
+ (inbuf->inputstate & INS_DLE_command)) {
+ /* DLE escape, pass up for handling */
+ inbuf->inputstate |= INS_DLE_char;
+ goto exit;
+ }
+ /* quoted or not in DLE mode: treat as regular data */
+ /* --v-- fall through --v-- */
+ default:
+ /* append to line buffer if possible */
+ if (cbytes < MAX_RESP_SIZE)
+ cs->respdata[cbytes] = c;
+ cbytes++;
}
}
-
+exit:
cs->cbytes = cbytes;
- inbuf->inputstate = inputstate;
-
- return startbytes - numbytes;
+ return procbytes;
}
-/* process a block of received bytes in lock mode (tty i/f)
+/* process a block of received bytes in lock mode
+ * All received bytes are passed unmodified to the tty i/f.
* Return value:
* number of processed bytes
*/
-static inline int lock_loop(unsigned char *src, int numbytes,
- struct inbuf_t *inbuf)
+static unsigned lock_loop(unsigned numbytes, struct inbuf_t *inbuf)
{
- struct cardstate *cs = inbuf->cs;
-
- gigaset_dbg_buffer(DEBUG_LOCKCMD, "received response",
- numbytes, src);
- gigaset_if_receive(cs, src, numbytes);
+ unsigned char *src = inbuf->data + inbuf->head;
+ gigaset_dbg_buffer(DEBUG_LOCKCMD, "received response", numbytes, src);
+ gigaset_if_receive(inbuf->cs, src, numbytes);
return numbytes;
}
+/* set up next receive skb for data mode
+ */
+static void new_rcv_skb(struct bc_state *bcs)
+{
+ struct cardstate *cs = bcs->cs;
+ unsigned short hw_hdr_len = cs->hw_hdr_len;
+
+ if (bcs->ignore) {
+ bcs->skb = NULL;
+ return;
+ }
+
+ bcs->skb = dev_alloc_skb(SBUFSIZE + hw_hdr_len);
+ if (bcs->skb == NULL) {
+ dev_warn(cs->dev, "could not allocate new skb\n");
+ return;
+ }
+ skb_reserve(bcs->skb, hw_hdr_len);
+}
+
/* process a block of received bytes in HDLC data mode
+ * (mstate != MS_LOCKED && !(inputstate & INS_command) && proto2 == L2_HDLC)
* Collect HDLC frames, undoing byte stuffing and watching for DLE escapes.
* When a frame is complete, check the FCS and pass valid frames to the LL.
* If DLE is encountered, return immediately to let the caller handle it.
* Return value:
* number of processed bytes
- * numbytes (all bytes processed) on error --FIXME
*/
-static inline int hdlc_loop(unsigned char c, unsigned char *src, int numbytes,
- struct inbuf_t *inbuf)
+static unsigned hdlc_loop(unsigned numbytes, struct inbuf_t *inbuf)
{
struct cardstate *cs = inbuf->cs;
- struct bc_state *bcs = inbuf->bcs;
+ struct bc_state *bcs = cs->bcs;
int inputstate = bcs->inputstate;
__u16 fcs = bcs->fcs;
struct sk_buff *skb = bcs->skb;
- unsigned char error;
- struct sk_buff *compskb;
- int startbytes = numbytes;
- int l;
+ unsigned char *src = inbuf->data + inbuf->head;
+ unsigned procbytes = 0;
+ unsigned char c;
- if (unlikely(inputstate & INS_byte_stuff)) {
+ if (inputstate & INS_byte_stuff) {
+ if (!numbytes)
+ return 0;
inputstate &= ~INS_byte_stuff;
goto byte_stuff;
}
- for (;;) {
- if (unlikely(c == PPP_ESCAPE)) {
- if (unlikely(!numbytes)) {
- inputstate |= INS_byte_stuff;
+
+ while (procbytes < numbytes) {
+ c = *src++;
+ procbytes++;
+ if (c == DLE_FLAG) {
+ if (inputstate & INS_DLE_char) {
+ /* quoted DLE: clear quote flag */
+ inputstate &= ~INS_DLE_char;
+ } else if (cs->dle || (inputstate & INS_DLE_command)) {
+ /* DLE escape, pass up for handling */
+ inputstate |= INS_DLE_char;
break;
}
- c = *src++;
- --numbytes;
- if (unlikely(c == DLE_FLAG &&
- (cs->dle ||
- inbuf->inputstate & INS_DLE_command))) {
- inbuf->inputstate |= INS_DLE_char;
+ }
+
+ if (c == PPP_ESCAPE) {
+ /* byte stuffing indicator: pull in next byte */
+ if (procbytes >= numbytes) {
+ /* end of buffer, save for later processing */
inputstate |= INS_byte_stuff;
break;
}
byte_stuff:
+ c = *src++;
+ procbytes++;
+ if (c == DLE_FLAG) {
+ if (inputstate & INS_DLE_char) {
+ /* quoted DLE: clear quote flag */
+ inputstate &= ~INS_DLE_char;
+ } else if (cs->dle ||
+ (inputstate & INS_DLE_command)) {
+ /* DLE escape, pass up for handling */
+ inputstate |=
+ INS_DLE_char | INS_byte_stuff;
+ break;
+ }
+ }
c ^= PPP_TRANS;
- if (unlikely(!muststuff(c)))
- gig_dbg(DEBUG_HDLC, "byte stuffed: 0x%02x", c);
- } else if (unlikely(c == PPP_FLAG)) {
- if (unlikely(inputstate & INS_skip_frame)) {
-#ifdef CONFIG_GIGASET_DEBUG
- if (!(inputstate & INS_have_data)) { /* 7E 7E */
- ++bcs->emptycount;
- } else
- gig_dbg(DEBUG_HDLC,
- "7e----------------------------");
-#endif
-
- /* end of frame */
- error = 1;
- gigaset_rcv_error(NULL, cs, bcs);
- } else if (!(inputstate & INS_have_data)) { /* 7E 7E */
#ifdef CONFIG_GIGASET_DEBUG
- ++bcs->emptycount;
+ if (!muststuff(c))
+ gig_dbg(DEBUG_HDLC, "byte stuffed: 0x%02x", c);
#endif
- break;
- } else {
+ } else if (c == PPP_FLAG) {
+ /* end of frame: process content if any */
+ if (inputstate & INS_have_data) {
gig_dbg(DEBUG_HDLC,
"7e----------------------------");
- /* end of frame */
- error = 0;
-
- if (unlikely(fcs != PPP_GOODFCS)) {
+ /* check and pass received frame */
+ if (!skb) {
+ /* skipped frame */
+ gigaset_isdn_rcv_err(bcs);
+ } else if (skb->len < 2) {
+ /* frame too short for FCS */
+ dev_warn(cs->dev,
+ "short frame (%d)\n",
+ skb->len);
+ gigaset_isdn_rcv_err(bcs);
+ dev_kfree_skb_any(skb);
+ } else if (fcs != PPP_GOODFCS) {
+ /* frame check error */
dev_err(cs->dev,
"Checksum failed, %u bytes corrupted!\n",
skb->len);
- compskb = NULL;
- gigaset_rcv_error(compskb, cs, bcs);
- error = 1;
+ gigaset_isdn_rcv_err(bcs);
+ dev_kfree_skb_any(skb);
} else {
- if (likely((l = skb->len) > 2)) {
- skb->tail -= 2;
- skb->len -= 2;
- } else {
- dev_kfree_skb(skb);
- skb = NULL;
- inputstate |= INS_skip_frame;
- if (l == 1) {
- dev_err(cs->dev,
- "invalid packet size (1)!\n");
- error = 1;
- gigaset_rcv_error(NULL,
- cs, bcs);
- }
- }
- if (likely(!(error ||
- (inputstate &
- INS_skip_frame)))) {
- gigaset_rcv_skb(skb, cs, bcs);
- }
+ /* good frame */
+ __skb_trim(skb, skb->len - 2);
+ gigaset_skb_rcvd(bcs, skb);
}
- }
- if (unlikely(error))
- if (skb)
- dev_kfree_skb(skb);
-
- fcs = PPP_INITFCS;
- inputstate &= ~(INS_have_data | INS_skip_frame);
- if (unlikely(bcs->ignore)) {
- inputstate |= INS_skip_frame;
- skb = NULL;
- } else if (likely((skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)) {
- skb_reserve(skb, HW_HDR_LEN);
+ /* prepare reception of next frame */
+ inputstate &= ~INS_have_data;
+ new_rcv_skb(bcs);
+ skb = bcs->skb;
} else {
- dev_warn(cs->dev,
- "could not allocate new skb\n");
- inputstate |= INS_skip_frame;
+ /* empty frame (7E 7E) */
+#ifdef CONFIG_GIGASET_DEBUG
+ ++bcs->emptycount;
+#endif
+ if (!skb) {
+ /* skipped (?) */
+ gigaset_isdn_rcv_err(bcs);
+ new_rcv_skb(bcs);
+ skb = bcs->skb;
+ }
}
- break;
- } else if (unlikely(muststuff(c))) {
+ fcs = PPP_INITFCS;
+ continue;
+#ifdef CONFIG_GIGASET_DEBUG
+ } else if (muststuff(c)) {
/* Should not happen. Possible after ZDLE=1<CR><LF>. */
gig_dbg(DEBUG_HDLC, "not byte stuffed: 0x%02x", c);
+#endif
}
- /* add character */
-
+ /* regular data byte, append to skb */
#ifdef CONFIG_GIGASET_DEBUG
- if (unlikely(!(inputstate & INS_have_data))) {
+ if (!(inputstate & INS_have_data)) {
gig_dbg(DEBUG_HDLC, "7e (%d x) ================",
bcs->emptycount);
bcs->emptycount = 0;
}
#endif
-
inputstate |= INS_have_data;
-
- if (likely(!(inputstate & INS_skip_frame))) {
- if (unlikely(skb->len == SBUFSIZE)) {
+ if (skb) {
+ if (skb->len == SBUFSIZE) {
dev_warn(cs->dev, "received packet too long\n");
dev_kfree_skb_any(skb);
- skb = NULL;
- inputstate |= INS_skip_frame;
- break;
+ /* skip remainder of packet */
+ bcs->skb = skb = NULL;
+ } else {
+ *__skb_put(skb, 1) = c;
+ fcs = crc_ccitt_byte(fcs, c);
}
- *__skb_put(skb, 1) = c;
- fcs = crc_ccitt_byte(fcs, c);
- }
-
- if (unlikely(!numbytes))
- break;
- c = *src++;
- --numbytes;
- if (unlikely(c == DLE_FLAG &&
- (cs->dle ||
- inbuf->inputstate & INS_DLE_command))) {
- inbuf->inputstate |= INS_DLE_char;
- break;
}
}
+
bcs->inputstate = inputstate;
bcs->fcs = fcs;
- bcs->skb = skb;
- return startbytes - numbytes;
+ return procbytes;
}
/* process a block of received bytes in transparent data mode
+ * (mstate != MS_LOCKED && !(inputstate & INS_command) && proto2 != L2_HDLC)
* Invert bytes, undoing byte stuffing and watching for DLE escapes.
* If DLE is encountered, return immediately to let the caller handle it.
* Return value:
* number of processed bytes
- * numbytes (all bytes processed) on error --FIXME
*/
-static inline int iraw_loop(unsigned char c, unsigned char *src, int numbytes,
- struct inbuf_t *inbuf)
+static unsigned iraw_loop(unsigned numbytes, struct inbuf_t *inbuf)
{
struct cardstate *cs = inbuf->cs;
- struct bc_state *bcs = inbuf->bcs;
+ struct bc_state *bcs = cs->bcs;
int inputstate = bcs->inputstate;
struct sk_buff *skb = bcs->skb;
- int startbytes = numbytes;
+ unsigned char *src = inbuf->data + inbuf->head;
+ unsigned procbytes = 0;
+ unsigned char c;
- for (;;) {
- /* add character */
- inputstate |= INS_have_data;
+ if (!skb) {
+ /* skip this block */
+ new_rcv_skb(bcs);
+ return numbytes;
+ }
- if (likely(!(inputstate & INS_skip_frame))) {
- if (unlikely(skb->len == SBUFSIZE)) {
- //FIXME just pass skb up and allocate a new one
- dev_warn(cs->dev, "received packet too long\n");
- dev_kfree_skb_any(skb);
- skb = NULL;
- inputstate |= INS_skip_frame;
+ while (procbytes < numbytes && skb->len < SBUFSIZE) {
+ c = *src++;
+ procbytes++;
+
+ if (c == DLE_FLAG) {
+ if (inputstate & INS_DLE_char) {
+ /* quoted DLE: clear quote flag */
+ inputstate &= ~INS_DLE_char;
+ } else if (cs->dle || (inputstate & INS_DLE_command)) {
+ /* DLE escape, pass up for handling */
+ inputstate |= INS_DLE_char;
break;
}
- *__skb_put(skb, 1) = bitrev8(c);
}
- if (unlikely(!numbytes))
- break;
- c = *src++;
- --numbytes;
- if (unlikely(c == DLE_FLAG &&
- (cs->dle ||
- inbuf->inputstate & INS_DLE_command))) {
- inbuf->inputstate |= INS_DLE_char;
- break;
- }
+ /* regular data byte: append to current skb */
+ inputstate |= INS_have_data;
+ *__skb_put(skb, 1) = bitrev8(c);
}
/* pass data up */
- if (likely(inputstate & INS_have_data)) {
- if (likely(!(inputstate & INS_skip_frame))) {
- gigaset_rcv_skb(skb, cs, bcs);
- }
- inputstate &= ~(INS_have_data | INS_skip_frame);
- if (unlikely(bcs->ignore)) {
- inputstate |= INS_skip_frame;
- skb = NULL;
- } else if (likely((skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN))
- != NULL)) {
- skb_reserve(skb, HW_HDR_LEN);
+ if (inputstate & INS_have_data) {
+ gigaset_skb_rcvd(bcs, skb);
+ inputstate &= ~INS_have_data;
+ new_rcv_skb(bcs);
+ }
+
+ bcs->inputstate = inputstate;
+ return procbytes;
+}
+
+/* process DLE escapes
+ * Called whenever a DLE sequence might be encountered in the input stream.
+ * Either processes the entire DLE sequence or, if that isn't possible,
+ * notes the fact that an initial DLE has been received in the INS_DLE_char
+ * inputstate flag and resumes processing of the sequence on the next call.
+ */
+static void handle_dle(struct inbuf_t *inbuf)
+{
+ struct cardstate *cs = inbuf->cs;
+
+ if (cs->mstate == MS_LOCKED)
+ return; /* no DLE processing in lock mode */
+
+ if (!(inbuf->inputstate & INS_DLE_char)) {
+ /* no DLE pending */
+ if (inbuf->data[inbuf->head] == DLE_FLAG &&
+ (cs->dle || inbuf->inputstate & INS_DLE_command)) {
+ /* start of DLE sequence */
+ inbuf->head++;
+ if (inbuf->head == inbuf->tail ||
+ inbuf->head == RBUFSIZE) {
+ /* end of buffer, save for later processing */
+ inbuf->inputstate |= INS_DLE_char;
+ return;
+ }
} else {
- dev_warn(cs->dev, "could not allocate new skb\n");
- inputstate |= INS_skip_frame;
+ /* regular data byte */
+ return;
}
}
- bcs->inputstate = inputstate;
- bcs->skb = skb;
- return startbytes - numbytes;
+ /* consume pending DLE */
+ inbuf->inputstate &= ~INS_DLE_char;
+
+ switch (inbuf->data[inbuf->head]) {
+ case 'X': /* begin of event message */
+ if (inbuf->inputstate & INS_command)
+ dev_notice(cs->dev,
+ "received <DLE>X in command mode\n");
+ inbuf->inputstate |= INS_command | INS_DLE_command;
+ inbuf->head++; /* byte consumed */
+ break;
+ case '.': /* end of event message */
+ if (!(inbuf->inputstate & INS_DLE_command))
+ dev_notice(cs->dev,
+ "received <DLE>. without <DLE>X\n");
+ inbuf->inputstate &= ~INS_DLE_command;
+ /* return to data mode if in DLE mode */
+ if (cs->dle)
+ inbuf->inputstate &= ~INS_command;
+ inbuf->head++; /* byte consumed */
+ break;
+ case DLE_FLAG: /* DLE in data stream */
+ /* mark as quoted */
+ inbuf->inputstate |= INS_DLE_char;
+ if (!(cs->dle || inbuf->inputstate & INS_DLE_command))
+ dev_notice(cs->dev,
+ "received <DLE><DLE> not in DLE mode\n");
+ break; /* quoted byte left in buffer */
+ default:
+ dev_notice(cs->dev, "received <DLE><%02x>\n",
+ inbuf->data[inbuf->head]);
+ /* quoted byte left in buffer */
+ }
}
/**
@@ -345,94 +425,39 @@ static inline int iraw_loop(unsigned char c, unsigned char *src, int numbytes,
*/
void gigaset_m10x_input(struct inbuf_t *inbuf)
{
- struct cardstate *cs;
- unsigned tail, head, numbytes;
- unsigned char *src, c;
- int procbytes;
-
- head = inbuf->head;
- tail = inbuf->tail;
- gig_dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
-
- if (head != tail) {
- cs = inbuf->cs;
- src = inbuf->data + head;
- numbytes = (head > tail ? RBUFSIZE : tail) - head;
- gig_dbg(DEBUG_INTR, "processing %u bytes", numbytes);
+ struct cardstate *cs = inbuf->cs;
+ unsigned numbytes, procbytes;
- while (numbytes) {
- if (cs->mstate == MS_LOCKED) {
- procbytes = lock_loop(src, numbytes, inbuf);
- src += procbytes;
- numbytes -= procbytes;
- } else {
- c = *src++;
- --numbytes;
- if (c == DLE_FLAG && (cs->dle ||
- inbuf->inputstate & INS_DLE_command)) {
- if (!(inbuf->inputstate & INS_DLE_char)) {
- inbuf->inputstate |= INS_DLE_char;
- goto nextbyte;
- }
- /* <DLE> <DLE> => <DLE> in data stream */
- inbuf->inputstate &= ~INS_DLE_char;
- }
+ gig_dbg(DEBUG_INTR, "buffer state: %u -> %u", inbuf->head, inbuf->tail);
- if (!(inbuf->inputstate & INS_DLE_char)) {
-
- /* FIXME use function pointers? */
- if (inbuf->inputstate & INS_command)
- procbytes = cmd_loop(c, src, numbytes, inbuf);
- else if (inbuf->bcs->proto2 == ISDN_PROTO_L2_HDLC)
- procbytes = hdlc_loop(c, src, numbytes, inbuf);
- else
- procbytes = iraw_loop(c, src, numbytes, inbuf);
-
- src += procbytes;
- numbytes -= procbytes;
- } else { /* DLE char */
- inbuf->inputstate &= ~INS_DLE_char;
- switch (c) {
- case 'X': /*begin of command*/
- if (inbuf->inputstate & INS_command)
- dev_warn(cs->dev,
- "received <DLE> 'X' in command mode\n");
- inbuf->inputstate |=
- INS_command | INS_DLE_command;
- break;
- case '.': /*end of command*/
- if (!(inbuf->inputstate & INS_command))
- dev_warn(cs->dev,
- "received <DLE> '.' in hdlc mode\n");
- inbuf->inputstate &= cs->dle ?
- ~(INS_DLE_command|INS_command)
- : ~INS_DLE_command;
- break;
- //case DLE_FLAG: /*DLE_FLAG in data stream*/ /* schon oben behandelt! */
- default:
- dev_err(cs->dev,
- "received 0x10 0x%02x!\n",
- (int) c);
- /* FIXME: reset driver?? */
- }
- }
- }
-nextbyte:
- if (!numbytes) {
- /* end of buffer, check for wrap */
- if (head > tail) {
- head = 0;
- src = inbuf->data;
- numbytes = tail;
- } else {
- head = tail;
- break;
- }
- }
- }
+ while (inbuf->head != inbuf->tail) {
+ /* check for DLE escape */
+ handle_dle(inbuf);
- gig_dbg(DEBUG_INTR, "setting head to %u", head);
- inbuf->head = head;
+ /* process a contiguous block of bytes */
+ numbytes = (inbuf->head > inbuf->tail ?
+ RBUFSIZE : inbuf->tail) - inbuf->head;
+ gig_dbg(DEBUG_INTR, "processing %u bytes", numbytes);
+ /*
+ * numbytes may be 0 if handle_dle() ate the last byte.
+ * This does no harm, *_loop() will just return 0 immediately.
+ */
+
+ if (cs->mstate == MS_LOCKED)
+ procbytes = lock_loop(numbytes, inbuf);
+ else if (inbuf->inputstate & INS_command)
+ procbytes = cmd_loop(numbytes, inbuf);
+ else if (cs->bcs->proto2 == L2_HDLC)
+ procbytes = hdlc_loop(numbytes, inbuf);
+ else
+ procbytes = iraw_loop(numbytes, inbuf);
+ inbuf->head += procbytes;
+
+ /* check for buffer wraparound */
+ if (inbuf->head >= RBUFSIZE)
+ inbuf->head = 0;
+
+ gig_dbg(DEBUG_INTR, "head set to %u", inbuf->head);
}
}
EXPORT_SYMBOL_GPL(gigaset_m10x_input);
@@ -440,16 +465,16 @@ EXPORT_SYMBOL_GPL(gigaset_m10x_input);
/* == data output ========================================================== */
-/* Encoding of a PPP packet into an octet stuffed HDLC frame
- * with FCS, opening and closing flags.
+/*
+ * Encode a data packet into an octet stuffed HDLC frame with FCS,
+ * opening and closing flags, preserving headroom data.
* parameters:
- * skb skb containing original packet (freed upon return)
- * head number of headroom bytes to allocate in result skb
- * tail number of tailroom bytes to allocate in result skb
+ * skb skb containing original packet (freed upon return)
* Return value:
* pointer to newly allocated skb containing the result frame
+ * and the original link layer header, NULL on error
*/
-static struct sk_buff *HDLC_Encode(struct sk_buff *skb, int head, int tail)
+static struct sk_buff *HDLC_Encode(struct sk_buff *skb)
{
struct sk_buff *hdlc_skb;
__u16 fcs;
@@ -471,16 +496,19 @@ static struct sk_buff *HDLC_Encode(struct sk_buff *skb, int head, int tail)
/* size of new buffer: original size + number of stuffing bytes
* + 2 bytes FCS + 2 stuffing bytes for FCS (if needed) + 2 flag bytes
+ * + room for link layer header
*/
- hdlc_skb = dev_alloc_skb(skb->len + stuf_cnt + 6 + tail + head);
+ hdlc_skb = dev_alloc_skb(skb->len + stuf_cnt + 6 + skb->mac_len);
if (!hdlc_skb) {
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return NULL;
}
- skb_reserve(hdlc_skb, head);
- /* Copy acknowledge request into new skb */
- memcpy(hdlc_skb->head, skb->head, 2);
+ /* Copy link layer header into new skb */
+ skb_reset_mac_header(hdlc_skb);
+ skb_reserve(hdlc_skb, skb->mac_len);
+ memcpy(skb_mac_header(hdlc_skb), skb_mac_header(skb), skb->mac_len);
+ hdlc_skb->mac_len = skb->mac_len;
/* Add flag sequence in front of everything.. */
*(skb_put(hdlc_skb, 1)) = PPP_FLAG;
@@ -511,33 +539,42 @@ static struct sk_buff *HDLC_Encode(struct sk_buff *skb, int head, int tail)
*(skb_put(hdlc_skb, 1)) = PPP_FLAG;
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return hdlc_skb;
}
-/* Encoding of a raw packet into an octet stuffed bit inverted frame
+/*
+ * Encode a data packet into an octet stuffed raw bit inverted frame,
+ * preserving headroom data.
* parameters:
- * skb skb containing original packet (freed upon return)
- * head number of headroom bytes to allocate in result skb
- * tail number of tailroom bytes to allocate in result skb
+ * skb skb containing original packet (freed upon return)
* Return value:
* pointer to newly allocated skb containing the result frame
+ * and the original link layer header, NULL on error
*/
-static struct sk_buff *iraw_encode(struct sk_buff *skb, int head, int tail)
+static struct sk_buff *iraw_encode(struct sk_buff *skb)
{
struct sk_buff *iraw_skb;
unsigned char c;
unsigned char *cp;
int len;
- /* worst case: every byte must be stuffed */
- iraw_skb = dev_alloc_skb(2*skb->len + tail + head);
+ /* size of new buffer (worst case = every byte must be stuffed):
+ * 2 * original size + room for link layer header
+ */
+ iraw_skb = dev_alloc_skb(2*skb->len + skb->mac_len);
if (!iraw_skb) {
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return NULL;
}
- skb_reserve(iraw_skb, head);
+ /* copy link layer header into new skb */
+ skb_reset_mac_header(iraw_skb);
+ skb_reserve(iraw_skb, skb->mac_len);
+ memcpy(skb_mac_header(iraw_skb), skb_mac_header(skb), skb->mac_len);
+ iraw_skb->mac_len = skb->mac_len;
+
+ /* copy and stuff data */
cp = skb->data;
len = skb->len;
while (len--) {
@@ -546,7 +583,7 @@ static struct sk_buff *iraw_encode(struct sk_buff *skb, int head, int tail)
*(skb_put(iraw_skb, 1)) = c;
*(skb_put(iraw_skb, 1)) = c;
}
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return iraw_skb;
}
@@ -555,8 +592,10 @@ static struct sk_buff *iraw_encode(struct sk_buff *skb, int head, int tail)
* @bcs: B channel descriptor structure.
* @skb: data to send.
*
- * Called by i4l.c to encode and queue an skb for sending, and start
+ * Called by LL to encode and queue an skb for sending, and start
* transmission if necessary.
+ * Once the payload data has been transmitted completely, gigaset_skb_sent()
+ * will be called with the skb's link layer header preserved.
*
* Return value:
* number of bytes accepted for sending (skb->len) if ok,
@@ -564,24 +603,25 @@ static struct sk_buff *iraw_encode(struct sk_buff *skb, int head, int tail)
*/
int gigaset_m10x_send_skb(struct bc_state *bcs, struct sk_buff *skb)
{
+ struct cardstate *cs = bcs->cs;
unsigned len = skb->len;
unsigned long flags;
- if (bcs->proto2 == ISDN_PROTO_L2_HDLC)
- skb = HDLC_Encode(skb, HW_HDR_LEN, 0);
+ if (bcs->proto2 == L2_HDLC)
+ skb = HDLC_Encode(skb);
else
- skb = iraw_encode(skb, HW_HDR_LEN, 0);
+ skb = iraw_encode(skb);
if (!skb) {
- dev_err(bcs->cs->dev,
+ dev_err(cs->dev,
"unable to allocate memory for encoding!\n");
return -ENOMEM;
}
skb_queue_tail(&bcs->squeue, skb);
- spin_lock_irqsave(&bcs->cs->lock, flags);
- if (bcs->cs->connected)
- tasklet_schedule(&bcs->cs->write_tasklet);
- spin_unlock_irqrestore(&bcs->cs->lock, flags);
+ spin_lock_irqsave(&cs->lock, flags);
+ if (cs->connected)
+ tasklet_schedule(&cs->write_tasklet);
+ spin_unlock_irqrestore(&cs->lock, flags);
return len; /* ok so far */
}
diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
index 5ed1d99eb9f..95ebc512989 100644
--- a/drivers/isdn/gigaset/bas-gigaset.c
+++ b/drivers/isdn/gigaset/bas-gigaset.c
@@ -57,7 +57,7 @@ MODULE_PARM_DESC(cidmode, "Call-ID mode");
#define USB_SX353_PRODUCT_ID 0x0022
/* table of devices that work with this driver */
-static const struct usb_device_id gigaset_table [] = {
+static const struct usb_device_id gigaset_table[] = {
{ USB_DEVICE(USB_GIGA_VENDOR_ID, USB_3070_PRODUCT_ID) },
{ USB_DEVICE(USB_GIGA_VENDOR_ID, USB_3075_PRODUCT_ID) },
{ USB_DEVICE(USB_GIGA_VENDOR_ID, USB_SX303_PRODUCT_ID) },
@@ -137,7 +137,7 @@ struct bas_cardstate {
#define BS_RESETTING 0x200 /* waiting for HD_RESET_INTERRUPT_PIPE_ACK */
-static struct gigaset_driver *driver = NULL;
+static struct gigaset_driver *driver;
/* usb specific object needed to register this driver with the usb subsystem */
static struct usb_driver gigaset_usb_driver = {
@@ -601,11 +601,12 @@ static int atread_submit(struct cardstate *cs, int timeout)
ucs->dr_cmd_in.wLength = cpu_to_le16(ucs->rcvbuf_size);
usb_fill_control_urb(ucs->urb_cmd_in, ucs->udev,
usb_rcvctrlpipe(ucs->udev, 0),
- (unsigned char*) & ucs->dr_cmd_in,
+ (unsigned char *) &ucs->dr_cmd_in,
ucs->rcvbuf, ucs->rcvbuf_size,
read_ctrl_callback, cs->inbuf);
- if ((ret = usb_submit_urb(ucs->urb_cmd_in, GFP_ATOMIC)) != 0) {
+ ret = usb_submit_urb(ucs->urb_cmd_in, GFP_ATOMIC);
+ if (ret != 0) {
update_basstate(ucs, 0, BS_ATRDPEND);
dev_err(cs->dev, "could not submit HD_READ_ATMESSAGE: %s\n",
get_usb_rcmsg(ret));
@@ -652,13 +653,11 @@ static void read_int_callback(struct urb *urb)
return;
case -ENODEV: /* device removed */
case -ESHUTDOWN: /* device shut down */
- //FIXME use this as disconnect indicator?
gig_dbg(DEBUG_USBREQ, "%s: device disconnected", __func__);
return;
default: /* severe trouble */
dev_warn(cs->dev, "interrupt read: %s\n",
get_usb_statmsg(status));
- //FIXME corrective action? resubmission always ok?
goto resubmit;
}
@@ -742,7 +741,8 @@ static void read_int_callback(struct urb *urb)
kfree(ucs->rcvbuf);
ucs->rcvbuf_size = 0;
}
- if ((ucs->rcvbuf = kmalloc(l, GFP_ATOMIC)) == NULL) {
+ ucs->rcvbuf = kmalloc(l, GFP_ATOMIC);
+ if (ucs->rcvbuf == NULL) {
spin_unlock_irqrestore(&cs->lock, flags);
dev_err(cs->dev, "out of memory receiving AT data\n");
error_reset(cs);
@@ -750,12 +750,12 @@ static void read_int_callback(struct urb *urb)
}
ucs->rcvbuf_size = l;
ucs->retry_cmd_in = 0;
- if ((rc = atread_submit(cs, BAS_TIMEOUT)) < 0) {
+ rc = atread_submit(cs, BAS_TIMEOUT);
+ if (rc < 0) {
kfree(ucs->rcvbuf);
ucs->rcvbuf = NULL;
ucs->rcvbuf_size = 0;
if (rc != -ENODEV) {
- //FIXME corrective action?
spin_unlock_irqrestore(&cs->lock, flags);
error_reset(cs);
break;
@@ -911,7 +911,7 @@ static int starturbs(struct bc_state *bcs)
int rc;
/* initialize L2 reception */
- if (bcs->proto2 == ISDN_PROTO_L2_HDLC)
+ if (bcs->proto2 == L2_HDLC)
bcs->inputstate |= INS_flag_hunt;
/* submit all isochronous input URBs */
@@ -940,7 +940,8 @@ static int starturbs(struct bc_state *bcs)
}
dump_urb(DEBUG_ISO, "Initial isoc read", urb);
- if ((rc = usb_submit_urb(urb, GFP_ATOMIC)) != 0)
+ rc = usb_submit_urb(urb, GFP_ATOMIC);
+ if (rc != 0)
goto error;
}
@@ -1045,7 +1046,8 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx)
/* compute frame length according to flow control */
ifd->length = BAS_NORMFRAME;
- if ((corrbytes = atomic_read(&ubc->corrbytes)) != 0) {
+ corrbytes = atomic_read(&ubc->corrbytes);
+ if (corrbytes != 0) {
gig_dbg(DEBUG_ISO, "%s: corrbytes=%d",
__func__, corrbytes);
if (corrbytes > BAS_HIGHFRAME - BAS_NORMFRAME)
@@ -1064,7 +1066,7 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx)
"%s: buffer busy at frame %d",
__func__, nframe);
/* tasklet will be restarted from
- gigaset_send_skb() */
+ gigaset_isoc_send_skb() */
} else {
dev_err(ucx->bcs->cs->dev,
"%s: buffer error %d at frame %d\n",
@@ -1284,7 +1286,8 @@ static void read_iso_tasklet(unsigned long data)
for (;;) {
/* retrieve URB */
spin_lock_irqsave(&ubc->isoinlock, flags);
- if (!(urb = ubc->isoindone)) {
+ urb = ubc->isoindone;
+ if (!urb) {
spin_unlock_irqrestore(&ubc->isoinlock, flags);
return;
}
@@ -1371,7 +1374,7 @@ static void read_iso_tasklet(unsigned long data)
"isochronous read: %d data bytes missing\n",
totleft);
- error:
+error:
/* URB processed, resubmit */
for (frame = 0; frame < BAS_NUMFRAMES; frame++) {
urb->iso_frame_desc[frame].status = 0;
@@ -1568,7 +1571,7 @@ static int req_submit(struct bc_state *bcs, int req, int val, int timeout)
ucs->dr_ctrl.wLength = 0;
usb_fill_control_urb(ucs->urb_ctrl, ucs->udev,
usb_sndctrlpipe(ucs->udev, 0),
- (unsigned char*) &ucs->dr_ctrl, NULL, 0,
+ (unsigned char *) &ucs->dr_ctrl, NULL, 0,
write_ctrl_callback, ucs);
ucs->retry_ctrl = 0;
ret = usb_submit_urb(ucs->urb_ctrl, GFP_ATOMIC);
@@ -1621,7 +1624,8 @@ static int gigaset_init_bchannel(struct bc_state *bcs)
return -EHOSTUNREACH;
}
- if ((ret = starturbs(bcs)) < 0) {
+ ret = starturbs(bcs);
+ if (ret < 0) {
dev_err(cs->dev,
"could not start isochronous I/O for channel B%d: %s\n",
bcs->channel + 1,
@@ -1633,7 +1637,8 @@ static int gigaset_init_bchannel(struct bc_state *bcs)
}
req = bcs->channel ? HD_OPEN_B2CHANNEL : HD_OPEN_B1CHANNEL;
- if ((ret = req_submit(bcs, req, 0, BAS_TIMEOUT)) < 0) {
+ ret = req_submit(bcs, req, 0, BAS_TIMEOUT);
+ if (ret < 0) {
dev_err(cs->dev, "could not open channel B%d\n",
bcs->channel + 1);
stopurbs(bcs->hw.bas);
@@ -1677,7 +1682,8 @@ static int gigaset_close_bchannel(struct bc_state *bcs)
/* channel running: tell device to close it */
req = bcs->channel ? HD_CLOSE_B2CHANNEL : HD_CLOSE_B1CHANNEL;
- if ((ret = req_submit(bcs, req, 0, BAS_TIMEOUT)) < 0)
+ ret = req_submit(bcs, req, 0, BAS_TIMEOUT);
+ if (ret < 0)
dev_err(cs->dev, "closing channel B%d failed\n",
bcs->channel + 1);
@@ -1703,10 +1709,12 @@ static void complete_cb(struct cardstate *cs)
gig_dbg(DEBUG_TRANSCMD|DEBUG_LOCKCMD,
"write_command: sent %u bytes, %u left",
cs->curlen, cs->cmdbytes);
- if ((cs->cmdbuf = cb->next) != NULL) {
+ if (cb->next != NULL) {
+ cs->cmdbuf = cb->next;
cs->cmdbuf->prev = NULL;
cs->curlen = cs->cmdbuf->len;
} else {
+ cs->cmdbuf = NULL;
cs->lastcmdbuf = NULL;
cs->curlen = 0;
}
@@ -1833,7 +1841,7 @@ static int atwrite_submit(struct cardstate *cs, unsigned char *buf, int len)
ucs->dr_cmd_out.wLength = cpu_to_le16(len);
usb_fill_control_urb(ucs->urb_cmd_out, ucs->udev,
usb_sndctrlpipe(ucs->udev, 0),
- (unsigned char*) &ucs->dr_cmd_out, buf, len,
+ (unsigned char *) &ucs->dr_cmd_out, buf, len,
write_command_callback, cs);
rc = usb_submit_urb(ucs->urb_cmd_out, GFP_ATOMIC);
if (unlikely(rc)) {
@@ -1953,7 +1961,8 @@ static int gigaset_write_cmd(struct cardstate *cs,
if (len > IF_WRITEBUF)
len = IF_WRITEBUF;
- if (!(cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC))) {
+ cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC);
+ if (!cb) {
dev_err(cs->dev, "%s: out of memory\n", __func__);
rc = -ENOMEM;
goto notqueued;
@@ -2100,14 +2109,15 @@ static int gigaset_initbcshw(struct bc_state *bcs)
}
ubc->isooutdone = ubc->isooutfree = ubc->isooutovfl = NULL;
ubc->numsub = 0;
- if (!(ubc->isooutbuf = kmalloc(sizeof(struct isowbuf_t), GFP_KERNEL))) {
+ ubc->isooutbuf = kmalloc(sizeof(struct isowbuf_t), GFP_KERNEL);
+ if (!ubc->isooutbuf) {
pr_err("out of memory\n");
kfree(ubc);
bcs->hw.bas = NULL;
return 0;
}
tasklet_init(&ubc->sent_tasklet,
- &write_iso_tasklet, (unsigned long) bcs);
+ write_iso_tasklet, (unsigned long) bcs);
spin_lock_init(&ubc->isoinlock);
for (i = 0; i < BAS_INURBS; ++i)
@@ -2128,7 +2138,7 @@ static int gigaset_initbcshw(struct bc_state *bcs)
ubc->shared0s = 0;
ubc->stolen0s = 0;
tasklet_init(&ubc->rcvd_tasklet,
- &read_iso_tasklet, (unsigned long) bcs);
+ read_iso_tasklet, (unsigned long) bcs);
return 1;
}
@@ -2252,7 +2262,8 @@ static int gigaset_probe(struct usb_interface *interface,
gig_dbg(DEBUG_ANY,
"%s: wrong alternate setting %d - trying to switch",
__func__, hostif->desc.bAlternateSetting);
- if (usb_set_interface(udev, hostif->desc.bInterfaceNumber, 3) < 0) {
+ if (usb_set_interface(udev, hostif->desc.bInterfaceNumber, 3)
+ < 0) {
dev_warn(&udev->dev, "usb_set_interface failed, "
"device %d interface %d altsetting %d\n",
udev->devnum, hostif->desc.bInterfaceNumber,
@@ -2321,14 +2332,16 @@ static int gigaset_probe(struct usb_interface *interface,
(endpoint->bEndpointAddress) & 0x0f),
ucs->int_in_buf, IP_MSGSIZE, read_int_callback, cs,
endpoint->bInterval);
- if ((rc = usb_submit_urb(ucs->urb_int_in, GFP_KERNEL)) != 0) {
+ rc = usb_submit_urb(ucs->urb_int_in, GFP_KERNEL);
+ if (rc != 0) {
dev_err(cs->dev, "could not submit interrupt URB: %s\n",
get_usb_rcmsg(rc));
goto error;
}
/* tell the device that the driver is ready */
- if ((rc = req_submit(cs->bcs, HD_DEVICE_INIT_ACK, 0, 0)) != 0)
+ rc = req_submit(cs->bcs, HD_DEVICE_INIT_ACK, 0, 0);
+ if (rc != 0)
goto error;
/* tell common part that the device is ready */
@@ -2524,9 +2537,10 @@ static int __init bas_gigaset_init(void)
int result;
/* allocate memory for our driver state and intialize it */
- if ((driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
- GIGASET_MODULENAME, GIGASET_DEVNAME,
- &gigops, THIS_MODULE)) == NULL)
+ driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
+ GIGASET_MODULENAME, GIGASET_DEVNAME,
+ &gigops, THIS_MODULE);
+ if (driver == NULL)
goto error;
/* register this driver with the USB subsystem */
diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
new file mode 100644
index 00000000000..3f5cd06af10
--- /dev/null
+++ b/drivers/isdn/gigaset/capi.c
@@ -0,0 +1,2292 @@
+/*
+ * Kernel CAPI interface for the Gigaset driver
+ *
+ * Copyright (c) 2009 by Tilman Schmidt <tilman@imap.cc>.
+ *
+ * =====================================================================
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ * =====================================================================
+ */
+
+#include "gigaset.h"
+#include <linux/ctype.h>
+#include <linux/isdn/capilli.h>
+#include <linux/isdn/capicmd.h>
+#include <linux/isdn/capiutil.h>
+
+/* missing from kernelcapi.h */
+#define CapiNcpiNotSupportedByProtocol 0x0001
+#define CapiFlagsNotSupportedByProtocol 0x0002
+#define CapiAlertAlreadySent 0x0003
+#define CapiFacilitySpecificFunctionNotSupported 0x3011
+
+/* missing from capicmd.h */
+#define CAPI_CONNECT_IND_BASELEN (CAPI_MSG_BASELEN+4+2+8*1)
+#define CAPI_CONNECT_ACTIVE_IND_BASELEN (CAPI_MSG_BASELEN+4+3*1)
+#define CAPI_CONNECT_B3_IND_BASELEN (CAPI_MSG_BASELEN+4+1)
+#define CAPI_CONNECT_B3_ACTIVE_IND_BASELEN (CAPI_MSG_BASELEN+4+1)
+#define CAPI_DATA_B3_REQ_LEN64 (CAPI_MSG_BASELEN+4+4+2+2+2+8)
+#define CAPI_DATA_B3_CONF_LEN (CAPI_MSG_BASELEN+4+2+2)
+#define CAPI_DISCONNECT_IND_LEN (CAPI_MSG_BASELEN+4+2)
+#define CAPI_DISCONNECT_B3_IND_BASELEN (CAPI_MSG_BASELEN+4+2+1)
+#define CAPI_FACILITY_CONF_BASELEN (CAPI_MSG_BASELEN+4+2+2+1)
+/* most _CONF messages contain only Controller/PLCI/NCCI and Info parameters */
+#define CAPI_STDCONF_LEN (CAPI_MSG_BASELEN+4+2)
+
+#define CAPI_FACILITY_HANDSET 0x0000
+#define CAPI_FACILITY_DTMF 0x0001
+#define CAPI_FACILITY_V42BIS 0x0002
+#define CAPI_FACILITY_SUPPSVC 0x0003
+#define CAPI_FACILITY_WAKEUP 0x0004
+#define CAPI_FACILITY_LI 0x0005
+
+#define CAPI_SUPPSVC_GETSUPPORTED 0x0000
+
+/* missing from capiutil.h */
+#define CAPIMSG_PLCI_PART(m) CAPIMSG_U8(m, 9)
+#define CAPIMSG_NCCI_PART(m) CAPIMSG_U16(m, 10)
+#define CAPIMSG_HANDLE_REQ(m) CAPIMSG_U16(m, 18) /* DATA_B3_REQ/_IND only! */
+#define CAPIMSG_FLAGS(m) CAPIMSG_U16(m, 20)
+#define CAPIMSG_SETCONTROLLER(m, contr) capimsg_setu8(m, 8, contr)
+#define CAPIMSG_SETPLCI_PART(m, plci) capimsg_setu8(m, 9, plci)
+#define CAPIMSG_SETNCCI_PART(m, ncci) capimsg_setu16(m, 10, ncci)
+#define CAPIMSG_SETFLAGS(m, flags) capimsg_setu16(m, 20, flags)
+
+/* parameters with differing location in DATA_B3_CONF/_RESP: */
+#define CAPIMSG_SETHANDLE_CONF(m, handle) capimsg_setu16(m, 12, handle)
+#define CAPIMSG_SETINFO_CONF(m, info) capimsg_setu16(m, 14, info)
+
+/* Flags (DATA_B3_REQ/_IND) */
+#define CAPI_FLAGS_DELIVERY_CONFIRMATION 0x04
+#define CAPI_FLAGS_RESERVED (~0x1f)
+
+/* buffer sizes */
+#define MAX_BC_OCTETS 11
+#define MAX_HLC_OCTETS 3
+#define MAX_NUMBER_DIGITS 20
+#define MAX_FMT_IE_LEN 20
+
+/* values for gigaset_capi_appl.connected */
+#define APCONN_NONE 0 /* inactive/listening */
+#define APCONN_SETUP 1 /* connecting */
+#define APCONN_ACTIVE 2 /* B channel up */
+
+/* registered application data structure */
+struct gigaset_capi_appl {
+ struct list_head ctrlist;
+ struct gigaset_capi_appl *bcnext;
+ u16 id;
+ u16 nextMessageNumber;
+ u32 listenInfoMask;
+ u32 listenCIPmask;
+ int connected;
+};
+
+/* CAPI specific controller data structure */
+struct gigaset_capi_ctr {
+ struct capi_ctr ctr;
+ struct list_head appls;
+ struct sk_buff_head sendqueue;
+ atomic_t sendqlen;
+ /* two _cmsg structures possibly used concurrently: */
+ _cmsg hcmsg; /* for message composition triggered from hardware */
+ _cmsg acmsg; /* for dissection of messages sent from application */
+ u8 bc_buf[MAX_BC_OCTETS+1];
+ u8 hlc_buf[MAX_HLC_OCTETS+1];
+ u8 cgpty_buf[MAX_NUMBER_DIGITS+3];
+ u8 cdpty_buf[MAX_NUMBER_DIGITS+2];
+};
+
+/* CIP Value table (from CAPI 2.0 standard, ch. 6.1) */
+static struct {
+ u8 *bc;
+ u8 *hlc;
+} cip2bchlc[] = {
+ [1] = { "8090A3", NULL },
+ /* Speech (A-law) */
+ [2] = { "8890", NULL },
+ /* Unrestricted digital information */
+ [3] = { "8990", NULL },
+ /* Restricted digital information */
+ [4] = { "9090A3", NULL },
+ /* 3,1 kHz audio (A-law) */
+ [5] = { "9190", NULL },
+ /* 7 kHz audio */
+ [6] = { "9890", NULL },
+ /* Video */
+ [7] = { "88C0C6E6", NULL },
+ /* Packet mode */
+ [8] = { "8890218F", NULL },
+ /* 56 kbit/s rate adaptation */
+ [9] = { "9190A5", NULL },
+ /* Unrestricted digital information with tones/announcements */
+ [16] = { "8090A3", "9181" },
+ /* Telephony */
+ [17] = { "9090A3", "9184" },
+ /* Group 2/3 facsimile */
+ [18] = { "8890", "91A1" },
+ /* Group 4 facsimile Class 1 */
+ [19] = { "8890", "91A4" },
+ /* Teletex service basic and mixed mode
+ and Group 4 facsimile service Classes II and III */
+ [20] = { "8890", "91A8" },
+ /* Teletex service basic and processable mode */
+ [21] = { "8890", "91B1" },
+ /* Teletex service basic mode */
+ [22] = { "8890", "91B2" },
+ /* International interworking for Videotex */
+ [23] = { "8890", "91B5" },
+ /* Telex */
+ [24] = { "8890", "91B8" },
+ /* Message Handling Systems in accordance with X.400 */
+ [25] = { "8890", "91C1" },
+ /* OSI application in accordance with X.200 */
+ [26] = { "9190A5", "9181" },
+ /* 7 kHz telephony */
+ [27] = { "9190A5", "916001" },
+ /* Video telephony, first connection */
+ [28] = { "8890", "916002" },
+ /* Video telephony, second connection */
+};
+
+/*
+ * helper functions
+ * ================
+ */
+
+/*
+ * emit unsupported parameter warning
+ */
+static inline void ignore_cstruct_param(struct cardstate *cs, _cstruct param,
+ char *msgname, char *paramname)
+{
+ if (param && *param)
+ dev_warn(cs->dev, "%s: ignoring unsupported parameter: %s\n",
+ msgname, paramname);
+}
+
+/*
+ * check for legal hex digit
+ */
+static inline int ishexdigit(char c)
+{
+ if (c >= '0' && c <= '9')
+ return 1;
+ if (c >= 'A' && c <= 'F')
+ return 1;
+ if (c >= 'a' && c <= 'f')
+ return 1;
+ return 0;
+}
+
+/*
+ * convert hex to binary
+ */
+static inline u8 hex2bin(char c)
+{
+ int result = c & 0x0f;
+ if (c & 0x40)
+ result += 9;
+ return result;
+}
+
+/*
+ * convert an IE from Gigaset hex string to ETSI binary representation
+ * including length byte
+ * return value: result length, -1 on error
+ */
+static int encode_ie(char *in, u8 *out, int maxlen)
+{
+ int l = 0;
+ while (*in) {
+ if (!ishexdigit(in[0]) || !ishexdigit(in[1]) || l >= maxlen)
+ return -1;
+ out[++l] = (hex2bin(in[0]) << 4) + hex2bin(in[1]);
+ in += 2;
+ }
+ out[0] = l;
+ return l;
+}
+
+/*
+ * convert an IE from ETSI binary representation including length byte
+ * to Gigaset hex string
+ */
+static void decode_ie(u8 *in, char *out)
+{
+ int i = *in;
+ while (i-- > 0) {
+ /* ToDo: conversion to upper case necessary? */
+ *out++ = toupper(hex_asc_hi(*++in));
+ *out++ = toupper(hex_asc_lo(*in));
+ }
+}
+
+/*
+ * retrieve application data structure for an application ID
+ */
+static inline struct gigaset_capi_appl *
+get_appl(struct gigaset_capi_ctr *iif, u16 appl)
+{
+ struct gigaset_capi_appl *ap;
+
+ list_for_each_entry(ap, &iif->appls, ctrlist)
+ if (ap->id == appl)
+ return ap;
+ return NULL;
+}
+
+/*
+ * dump CAPI message to kernel messages for debugging
+ */
+static inline void dump_cmsg(enum debuglevel level, const char *tag, _cmsg *p)
+{
+#ifdef CONFIG_GIGASET_DEBUG
+ _cdebbuf *cdb;
+
+ if (!(gigaset_debuglevel & level))
+ return;
+
+ cdb = capi_cmsg2str(p);
+ if (cdb) {
+ gig_dbg(level, "%s: [%d] %s", tag, p->ApplId, cdb->buf);
+ cdebbuf_free(cdb);
+ } else {
+ gig_dbg(level, "%s: [%d] %s", tag, p->ApplId,
+ capi_cmd2str(p->Command, p->Subcommand));
+ }
+#endif
+}
+
+static inline void dump_rawmsg(enum debuglevel level, const char *tag,
+ unsigned char *data)
+{
+#ifdef CONFIG_GIGASET_DEBUG
+ char *dbgline;
+ int i, l;
+
+ if (!(gigaset_debuglevel & level))
+ return;
+
+ l = CAPIMSG_LEN(data);
+ if (l < 12) {
+ gig_dbg(level, "%s: ??? LEN=%04d", tag, l);
+ return;
+ }
+ gig_dbg(level, "%s: 0x%02x:0x%02x: ID=%03d #0x%04x LEN=%04d NCCI=0x%x",
+ tag, CAPIMSG_COMMAND(data), CAPIMSG_SUBCOMMAND(data),
+ CAPIMSG_APPID(data), CAPIMSG_MSGID(data), l,
+ CAPIMSG_CONTROL(data));
+ l -= 12;
+ dbgline = kmalloc(3*l, GFP_ATOMIC);
+ if (!dbgline)
+ return;
+ for (i = 0; i < l; i++) {
+ dbgline[3*i] = hex_asc_hi(data[12+i]);
+ dbgline[3*i+1] = hex_asc_lo(data[12+i]);
+ dbgline[3*i+2] = ' ';
+ }
+ dbgline[3*l-1] = '\0';
+ gig_dbg(level, " %s", dbgline);
+ kfree(dbgline);
+ if (CAPIMSG_COMMAND(data) == CAPI_DATA_B3 &&
+ (CAPIMSG_SUBCOMMAND(data) == CAPI_REQ ||
+ CAPIMSG_SUBCOMMAND(data) == CAPI_IND) &&
+ CAPIMSG_DATALEN(data) > 0) {
+ l = CAPIMSG_DATALEN(data);
+ dbgline = kmalloc(3*l, GFP_ATOMIC);
+ if (!dbgline)
+ return;
+ data += CAPIMSG_LEN(data);
+ for (i = 0; i < l; i++) {
+ dbgline[3*i] = hex_asc_hi(data[i]);
+ dbgline[3*i+1] = hex_asc_lo(data[i]);
+ dbgline[3*i+2] = ' ';
+ }
+ dbgline[3*l-1] = '\0';
+ gig_dbg(level, " %s", dbgline);
+ kfree(dbgline);
+ }
+#endif
+}
+
+/*
+ * format CAPI IE as string
+ */
+
+static const char *format_ie(const char *ie)
+{
+ static char result[3*MAX_FMT_IE_LEN];
+ int len, count;
+ char *pout = result;
+
+ if (!ie)
+ return "NULL";
+
+ count = len = ie[0];
+ if (count > MAX_FMT_IE_LEN)
+ count = MAX_FMT_IE_LEN-1;
+ while (count--) {
+ *pout++ = hex_asc_hi(*++ie);
+ *pout++ = hex_asc_lo(*ie);
+ *pout++ = ' ';
+ }
+ if (len > MAX_FMT_IE_LEN) {
+ *pout++ = '.';
+ *pout++ = '.';
+ *pout++ = '.';
+ }
+ *--pout = 0;
+ return result;
+}
+
+
+/*
+ * driver interface functions
+ * ==========================
+ */
+
+/**
+ * gigaset_skb_sent() - acknowledge transmission of outgoing skb
+ * @bcs: B channel descriptor structure.
+ * @skb: sent data.
+ *
+ * Called by hardware module {bas,ser,usb}_gigaset when the data in a
+ * skb has been successfully sent, for signalling completion to the LL.
+ */
+void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *dskb)
+{
+ struct cardstate *cs = bcs->cs;
+ struct gigaset_capi_ctr *iif = cs->iif;
+ struct gigaset_capi_appl *ap = bcs->ap;
+ unsigned char *req = skb_mac_header(dskb);
+ struct sk_buff *cskb;
+ u16 flags;
+
+ /* update statistics */
+ ++bcs->trans_up;
+
+ if (!ap) {
+ dev_err(cs->dev, "%s: no application\n", __func__);
+ return;
+ }
+
+ /* don't send further B3 messages if disconnected */
+ if (ap->connected < APCONN_ACTIVE) {
+ gig_dbg(DEBUG_LLDATA, "disconnected, discarding ack");
+ return;
+ }
+
+ /* ToDo: honor unset "delivery confirmation" bit */
+ flags = CAPIMSG_FLAGS(req);
+
+ /* build DATA_B3_CONF message */
+ cskb = alloc_skb(CAPI_DATA_B3_CONF_LEN, GFP_ATOMIC);
+ if (!cskb) {
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
+ return;
+ }
+ /* frequent message, avoid _cmsg overhead */
+ CAPIMSG_SETLEN(cskb->data, CAPI_DATA_B3_CONF_LEN);
+ CAPIMSG_SETAPPID(cskb->data, ap->id);
+ CAPIMSG_SETCOMMAND(cskb->data, CAPI_DATA_B3);
+ CAPIMSG_SETSUBCOMMAND(cskb->data, CAPI_CONF);
+ CAPIMSG_SETMSGID(cskb->data, CAPIMSG_MSGID(req));
+ CAPIMSG_SETCONTROLLER(cskb->data, iif->ctr.cnr);
+ CAPIMSG_SETPLCI_PART(cskb->data, bcs->channel + 1);
+ CAPIMSG_SETNCCI_PART(cskb->data, 1);
+ CAPIMSG_SETHANDLE_CONF(cskb->data, CAPIMSG_HANDLE_REQ(req));
+ if (flags & ~CAPI_FLAGS_DELIVERY_CONFIRMATION)
+ CAPIMSG_SETINFO_CONF(cskb->data,
+ CapiFlagsNotSupportedByProtocol);
+ else
+ CAPIMSG_SETINFO_CONF(cskb->data, CAPI_NOERROR);
+
+ /* emit message */
+ dump_rawmsg(DEBUG_LLDATA, "DATA_B3_CONF", cskb->data);
+ capi_ctr_handle_message(&iif->ctr, ap->id, cskb);
+}
+EXPORT_SYMBOL_GPL(gigaset_skb_sent);
+
+/**
+ * gigaset_skb_rcvd() - pass received skb to LL
+ * @bcs: B channel descriptor structure.
+ * @skb: received data.
+ *
+ * Called by hardware module {bas,ser,usb}_gigaset when user data has
+ * been successfully received, for passing to the LL.
+ * Warning: skb must not be accessed anymore!
+ */
+void gigaset_skb_rcvd(struct bc_state *bcs, struct sk_buff *skb)
+{
+ struct cardstate *cs = bcs->cs;
+ struct gigaset_capi_ctr *iif = cs->iif;
+ struct gigaset_capi_appl *ap = bcs->ap;
+ int len = skb->len;
+
+ /* update statistics */
+ bcs->trans_down++;
+
+ if (!ap) {
+ dev_err(cs->dev, "%s: no application\n", __func__);
+ return;
+ }
+
+ /* don't send further B3 messages if disconnected */
+ if (ap->connected < APCONN_ACTIVE) {
+ gig_dbg(DEBUG_LLDATA, "disconnected, discarding data");
+ dev_kfree_skb_any(skb);
+ return;
+ }
+
+ /*
+ * prepend DATA_B3_IND message to payload
+ * Parameters: NCCI = 1, all others 0/unused
+ * frequent message, avoid _cmsg overhead
+ */
+ skb_push(skb, CAPI_DATA_B3_REQ_LEN);
+ CAPIMSG_SETLEN(skb->data, CAPI_DATA_B3_REQ_LEN);
+ CAPIMSG_SETAPPID(skb->data, ap->id);
+ CAPIMSG_SETCOMMAND(skb->data, CAPI_DATA_B3);
+ CAPIMSG_SETSUBCOMMAND(skb->data, CAPI_IND);
+ CAPIMSG_SETMSGID(skb->data, ap->nextMessageNumber++);
+ CAPIMSG_SETCONTROLLER(skb->data, iif->ctr.cnr);
+ CAPIMSG_SETPLCI_PART(skb->data, bcs->channel + 1);
+ CAPIMSG_SETNCCI_PART(skb->data, 1);
+ /* Data parameter not used */
+ CAPIMSG_SETDATALEN(skb->data, len);
+ /* Data handle parameter not used */
+ CAPIMSG_SETFLAGS(skb->data, 0);
+ /* Data64 parameter not present */
+
+ /* emit message */
+ dump_rawmsg(DEBUG_LLDATA, "DATA_B3_IND", skb->data);
+ capi_ctr_handle_message(&iif->ctr, ap->id, skb);
+}
+EXPORT_SYMBOL_GPL(gigaset_skb_rcvd);
+
+/**
+ * gigaset_isdn_rcv_err() - signal receive error
+ * @bcs: B channel descriptor structure.
+ *
+ * Called by hardware module {bas,ser,usb}_gigaset when a receive error
+ * has occurred, for signalling to the LL.
+ */
+void gigaset_isdn_rcv_err(struct bc_state *bcs)
+{
+ /* if currently ignoring packets, just count down */
+ if (bcs->ignore) {
+ bcs->ignore--;
+ return;
+ }
+
+ /* update statistics */
+ bcs->corrupted++;
+
+ /* ToDo: signal error -> LL */
+}
+EXPORT_SYMBOL_GPL(gigaset_isdn_rcv_err);
+
+/**
+ * gigaset_isdn_icall() - signal incoming call
+ * @at_state: connection state structure.
+ *
+ * Called by main module at tasklet level to notify the LL that an incoming
+ * call has been received. @at_state contains the parameters of the call.
+ *
+ * Return value: call disposition (ICALL_*)
+ */
+int gigaset_isdn_icall(struct at_state_t *at_state)
+{
+ struct cardstate *cs = at_state->cs;
+ struct bc_state *bcs = at_state->bcs;
+ struct gigaset_capi_ctr *iif = cs->iif;
+ struct gigaset_capi_appl *ap;
+ u32 actCIPmask;
+ struct sk_buff *skb;
+ unsigned int msgsize;
+ int i;
+
+ /*
+ * ToDo: signal calls without a free B channel, too
+ * (requires a u8 handle for the at_state structure that can
+ * be stored in the PLCI and used in the CONNECT_RESP message
+ * handler to retrieve it)
+ */
+ if (!bcs)
+ return ICALL_IGNORE;
+
+ /* prepare CONNECT_IND message, using B channel number as PLCI */
+ capi_cmsg_header(&iif->hcmsg, 0, CAPI_CONNECT, CAPI_IND, 0,
+ iif->ctr.cnr | ((bcs->channel + 1) << 8));
+
+ /* minimum size, all structs empty */
+ msgsize = CAPI_CONNECT_IND_BASELEN;
+
+ /* Bearer Capability (mandatory) */
+ if (at_state->str_var[STR_ZBC]) {
+ /* pass on BC from Gigaset */
+ if (encode_ie(at_state->str_var[STR_ZBC], iif->bc_buf,
+ MAX_BC_OCTETS) < 0) {
+ dev_warn(cs->dev, "RING ignored - bad BC %s\n",
+ at_state->str_var[STR_ZBC]);
+ return ICALL_IGNORE;
+ }
+
+ /* look up corresponding CIP value */
+ iif->hcmsg.CIPValue = 0; /* default if nothing found */
+ for (i = 0; i < ARRAY_SIZE(cip2bchlc); i++)
+ if (cip2bchlc[i].bc != NULL &&
+ cip2bchlc[i].hlc == NULL &&
+ !strcmp(cip2bchlc[i].bc,
+ at_state->str_var[STR_ZBC])) {
+ iif->hcmsg.CIPValue = i;
+ break;
+ }
+ } else {
+ /* no BC (internal call): assume CIP 1 (speech, A-law) */
+ iif->hcmsg.CIPValue = 1;
+ encode_ie(cip2bchlc[1].bc, iif->bc_buf, MAX_BC_OCTETS);
+ }
+ iif->hcmsg.BC = iif->bc_buf;
+ msgsize += iif->hcmsg.BC[0];
+
+ /* High Layer Compatibility (optional) */
+ if (at_state->str_var[STR_ZHLC]) {
+ /* pass on HLC from Gigaset */
+ if (encode_ie(at_state->str_var[STR_ZHLC], iif->hlc_buf,
+ MAX_HLC_OCTETS) < 0) {
+ dev_warn(cs->dev, "RING ignored - bad HLC %s\n",
+ at_state->str_var[STR_ZHLC]);
+ return ICALL_IGNORE;
+ }
+ iif->hcmsg.HLC = iif->hlc_buf;
+ msgsize += iif->hcmsg.HLC[0];
+
+ /* look up corresponding CIP value */
+ /* keep BC based CIP value if none found */
+ if (at_state->str_var[STR_ZBC])
+ for (i = 0; i < ARRAY_SIZE(cip2bchlc); i++)
+ if (cip2bchlc[i].hlc != NULL &&
+ !strcmp(cip2bchlc[i].hlc,
+ at_state->str_var[STR_ZHLC]) &&
+ !strcmp(cip2bchlc[i].bc,
+ at_state->str_var[STR_ZBC])) {
+ iif->hcmsg.CIPValue = i;
+ break;
+ }
+ }
+
+ /* Called Party Number (optional) */
+ if (at_state->str_var[STR_ZCPN]) {
+ i = strlen(at_state->str_var[STR_ZCPN]);
+ if (i > MAX_NUMBER_DIGITS) {
+ dev_warn(cs->dev, "RING ignored - bad number %s\n",
+ at_state->str_var[STR_ZBC]);
+ return ICALL_IGNORE;
+ }
+ iif->cdpty_buf[0] = i + 1;
+ iif->cdpty_buf[1] = 0x80; /* type / numbering plan unknown */
+ memcpy(iif->cdpty_buf+2, at_state->str_var[STR_ZCPN], i);
+ iif->hcmsg.CalledPartyNumber = iif->cdpty_buf;
+ msgsize += iif->hcmsg.CalledPartyNumber[0];
+ }
+
+ /* Calling Party Number (optional) */
+ if (at_state->str_var[STR_NMBR]) {
+ i = strlen(at_state->str_var[STR_NMBR]);
+ if (i > MAX_NUMBER_DIGITS) {
+ dev_warn(cs->dev, "RING ignored - bad number %s\n",
+ at_state->str_var[STR_ZBC]);
+ return ICALL_IGNORE;
+ }
+ iif->cgpty_buf[0] = i + 2;
+ iif->cgpty_buf[1] = 0x00; /* type / numbering plan unknown */
+ iif->cgpty_buf[2] = 0x80; /* pres. allowed, not screened */
+ memcpy(iif->cgpty_buf+3, at_state->str_var[STR_NMBR], i);
+ iif->hcmsg.CallingPartyNumber = iif->cgpty_buf;
+ msgsize += iif->hcmsg.CallingPartyNumber[0];
+ }
+
+ /* remaining parameters (not supported, always left NULL):
+ * - CalledPartySubaddress
+ * - CallingPartySubaddress
+ * - AdditionalInfo
+ * - BChannelinformation
+ * - Keypadfacility
+ * - Useruserdata
+ * - Facilitydataarray
+ */
+
+ gig_dbg(DEBUG_CMD, "icall: PLCI %x CIP %d BC %s",
+ iif->hcmsg.adr.adrPLCI, iif->hcmsg.CIPValue,
+ format_ie(iif->hcmsg.BC));
+ gig_dbg(DEBUG_CMD, "icall: HLC %s",
+ format_ie(iif->hcmsg.HLC));
+ gig_dbg(DEBUG_CMD, "icall: CgPty %s",
+ format_ie(iif->hcmsg.CallingPartyNumber));
+ gig_dbg(DEBUG_CMD, "icall: CdPty %s",
+ format_ie(iif->hcmsg.CalledPartyNumber));
+
+ /* scan application list for matching listeners */
+ bcs->ap = NULL;
+ actCIPmask = 1 | (1 << iif->hcmsg.CIPValue);
+ list_for_each_entry(ap, &iif->appls, ctrlist)
+ if (actCIPmask & ap->listenCIPmask) {
+ /* build CONNECT_IND message for this application */
+ iif->hcmsg.ApplId = ap->id;
+ iif->hcmsg.Messagenumber = ap->nextMessageNumber++;
+
+ skb = alloc_skb(msgsize, GFP_ATOMIC);
+ if (!skb) {
+ dev_err(cs->dev, "%s: out of memory\n",
+ __func__);
+ break;
+ }
+ capi_cmsg2message(&iif->hcmsg, __skb_put(skb, msgsize));
+ dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg);
+
+ /* add to listeners on this B channel, update state */
+ ap->bcnext = bcs->ap;
+ bcs->ap = ap;
+ bcs->chstate |= CHS_NOTIFY_LL;
+ ap->connected = APCONN_SETUP;
+
+ /* emit message */
+ capi_ctr_handle_message(&iif->ctr, ap->id, skb);
+ }
+
+ /*
+ * Return "accept" if any listeners.
+ * Gigaset will send ALERTING.
+ * There doesn't seem to be a way to avoid this.
+ */
+ return bcs->ap ? ICALL_ACCEPT : ICALL_IGNORE;
+}
+
+/*
+ * send a DISCONNECT_IND message to an application
+ * does not sleep, clobbers the controller's hcmsg structure
+ */
+static void send_disconnect_ind(struct bc_state *bcs,
+ struct gigaset_capi_appl *ap, u16 reason)
+{
+ struct cardstate *cs = bcs->cs;
+ struct gigaset_capi_ctr *iif = cs->iif;
+ struct sk_buff *skb;
+
+ if (ap->connected == APCONN_NONE)
+ return;
+
+ capi_cmsg_header(&iif->hcmsg, ap->id, CAPI_DISCONNECT, CAPI_IND,
+ ap->nextMessageNumber++,
+ iif->ctr.cnr | ((bcs->channel + 1) << 8));
+ iif->hcmsg.Reason = reason;
+ skb = alloc_skb(CAPI_DISCONNECT_IND_LEN, GFP_ATOMIC);
+ if (!skb) {
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
+ return;
+ }
+ capi_cmsg2message(&iif->hcmsg, __skb_put(skb, CAPI_DISCONNECT_IND_LEN));
+ dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg);
+ ap->connected = APCONN_NONE;
+ capi_ctr_handle_message(&iif->ctr, ap->id, skb);
+}
+
+/*
+ * send a DISCONNECT_B3_IND message to an application
+ * Parameters: NCCI = 1, NCPI empty, Reason_B3 = 0
+ * does not sleep, clobbers the controller's hcmsg structure
+ */
+static void send_disconnect_b3_ind(struct bc_state *bcs,
+ struct gigaset_capi_appl *ap)
+{
+ struct cardstate *cs = bcs->cs;
+ struct gigaset_capi_ctr *iif = cs->iif;
+ struct sk_buff *skb;
+
+ /* nothing to do if no logical connection active */
+ if (ap->connected < APCONN_ACTIVE)
+ return;
+ ap->connected = APCONN_SETUP;
+
+ capi_cmsg_header(&iif->hcmsg, ap->id, CAPI_DISCONNECT_B3, CAPI_IND,
+ ap->nextMessageNumber++,
+ iif->ctr.cnr | ((bcs->channel + 1) << 8) | (1 << 16));
+ skb = alloc_skb(CAPI_DISCONNECT_B3_IND_BASELEN, GFP_ATOMIC);
+ if (!skb) {
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
+ return;
+ }
+ capi_cmsg2message(&iif->hcmsg,
+ __skb_put(skb, CAPI_DISCONNECT_B3_IND_BASELEN));
+ dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg);
+ capi_ctr_handle_message(&iif->ctr, ap->id, skb);
+}
+
+/**
+ * gigaset_isdn_connD() - signal D channel connect
+ * @bcs: B channel descriptor structure.
+ *
+ * Called by main module at tasklet level to notify the LL that the D channel
+ * connection has been established.
+ */
+void gigaset_isdn_connD(struct bc_state *bcs)
+{
+ struct cardstate *cs = bcs->cs;
+ struct gigaset_capi_ctr *iif = cs->iif;
+ struct gigaset_capi_appl *ap = bcs->ap;
+ struct sk_buff *skb;
+ unsigned int msgsize;
+
+ if (!ap) {
+ dev_err(cs->dev, "%s: no application\n", __func__);
+ return;
+ }
+ while (ap->bcnext) {
+ /* this should never happen */
+ dev_warn(cs->dev, "%s: dropping extra application %u\n",
+ __func__, ap->bcnext->id);
+ send_disconnect_ind(bcs, ap->bcnext,
+ CapiCallGivenToOtherApplication);
+ ap->bcnext = ap->bcnext->bcnext;
+ }
+ if (ap->connected == APCONN_NONE) {
+ dev_warn(cs->dev, "%s: application %u not connected\n",
+ __func__, ap->id);
+ return;
+ }
+
+ /* prepare CONNECT_ACTIVE_IND message
+ * Note: LLC not supported by device
+ */
+ capi_cmsg_header(&iif->hcmsg, ap->id, CAPI_CONNECT_ACTIVE, CAPI_IND,
+ ap->nextMessageNumber++,
+ iif->ctr.cnr | ((bcs->channel + 1) << 8));
+
+ /* minimum size, all structs empty */
+ msgsize = CAPI_CONNECT_ACTIVE_IND_BASELEN;
+
+ /* ToDo: set parameter: Connected number
+ * (requires ev-layer state machine extension to collect
+ * ZCON device reply)
+ */
+
+ /* build and emit CONNECT_ACTIVE_IND message */
+ skb = alloc_skb(msgsize, GFP_ATOMIC);
+ if (!skb) {
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
+ return;
+ }
+ capi_cmsg2message(&iif->hcmsg, __skb_put(skb, msgsize));
+ dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg);
+ capi_ctr_handle_message(&iif->ctr, ap->id, skb);
+}
+
+/**
+ * gigaset_isdn_hupD() - signal D channel hangup
+ * @bcs: B channel descriptor structure.
+ *
+ * Called by main module at tasklet level to notify the LL that the D channel
+ * connection has been shut down.
+ */
+void gigaset_isdn_hupD(struct bc_state *bcs)
+{
+ struct gigaset_capi_appl *ap;
+
+ /*
+ * ToDo: pass on reason code reported by device
+ * (requires ev-layer state machine extension to collect
+ * ZCAU device reply)
+ */
+ for (ap = bcs->ap; ap != NULL; ap = ap->bcnext) {
+ send_disconnect_b3_ind(bcs, ap);
+ send_disconnect_ind(bcs, ap, 0);
+ }
+ bcs->ap = NULL;
+}
+
+/**
+ * gigaset_isdn_connB() - signal B channel connect
+ * @bcs: B channel descriptor structure.
+ *
+ * Called by main module at tasklet level to notify the LL that the B channel
+ * connection has been established.
+ */
+void gigaset_isdn_connB(struct bc_state *bcs)
+{
+ struct cardstate *cs = bcs->cs;
+ struct gigaset_capi_ctr *iif = cs->iif;
+ struct gigaset_capi_appl *ap = bcs->ap;
+ struct sk_buff *skb;
+ unsigned int msgsize;
+ u8 command;
+
+ if (!ap) {
+ dev_err(cs->dev, "%s: no application\n", __func__);
+ return;
+ }
+ while (ap->bcnext) {
+ /* this should never happen */
+ dev_warn(cs->dev, "%s: dropping extra application %u\n",
+ __func__, ap->bcnext->id);
+ send_disconnect_ind(bcs, ap->bcnext,
+ CapiCallGivenToOtherApplication);
+ ap->bcnext = ap->bcnext->bcnext;
+ }
+ if (!ap->connected) {
+ dev_warn(cs->dev, "%s: application %u not connected\n",
+ __func__, ap->id);
+ return;
+ }
+
+ /*
+ * emit CONNECT_B3_ACTIVE_IND if we already got CONNECT_B3_REQ;
+ * otherwise we have to emit CONNECT_B3_IND first, and follow up with
+ * CONNECT_B3_ACTIVE_IND in reply to CONNECT_B3_RESP
+ * Parameters in both cases always: NCCI = 1, NCPI empty
+ */
+ if (ap->connected >= APCONN_ACTIVE) {
+ command = CAPI_CONNECT_B3_ACTIVE;
+ msgsize = CAPI_CONNECT_B3_ACTIVE_IND_BASELEN;
+ } else {
+ command = CAPI_CONNECT_B3;
+ msgsize = CAPI_CONNECT_B3_IND_BASELEN;
+ }
+ capi_cmsg_header(&iif->hcmsg, ap->id, command, CAPI_IND,
+ ap->nextMessageNumber++,
+ iif->ctr.cnr | ((bcs->channel + 1) << 8) | (1 << 16));
+ skb = alloc_skb(msgsize, GFP_ATOMIC);
+ if (!skb) {
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
+ return;
+ }
+ capi_cmsg2message(&iif->hcmsg, __skb_put(skb, msgsize));
+ dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg);
+ ap->connected = APCONN_ACTIVE;
+ capi_ctr_handle_message(&iif->ctr, ap->id, skb);
+}
+
+/**
+ * gigaset_isdn_hupB() - signal B channel hangup
+ * @bcs: B channel descriptor structure.
+ *
+ * Called by main module to notify the LL that the B channel connection has
+ * been shut down.
+ */
+void gigaset_isdn_hupB(struct bc_state *bcs)
+{
+ struct cardstate *cs = bcs->cs;
+ struct gigaset_capi_appl *ap = bcs->ap;
+
+ /* ToDo: assure order of DISCONNECT_B3_IND and DISCONNECT_IND ? */
+
+ if (!ap) {
+ dev_err(cs->dev, "%s: no application\n", __func__);
+ return;
+ }
+
+ send_disconnect_b3_ind(bcs, ap);
+}
+
+/**
+ * gigaset_isdn_start() - signal device availability
+ * @cs: device descriptor structure.
+ *
+ * Called by main module to notify the LL that the device is available for
+ * use.
+ */
+void gigaset_isdn_start(struct cardstate *cs)
+{
+ struct gigaset_capi_ctr *iif = cs->iif;
+
+ /* fill profile data: manufacturer name */
+ strcpy(iif->ctr.manu, "Siemens");
+ /* CAPI and device version */
+ iif->ctr.version.majorversion = 2; /* CAPI 2.0 */
+ iif->ctr.version.minorversion = 0;
+ /* ToDo: check/assert cs->gotfwver? */
+ iif->ctr.version.majormanuversion = cs->fwver[0];
+ iif->ctr.version.minormanuversion = cs->fwver[1];
+ /* number of B channels supported */
+ iif->ctr.profile.nbchannel = cs->channels;
+ /* global options: internal controller, supplementary services */
+ iif->ctr.profile.goptions = 0x11;
+ /* B1 protocols: 64 kbit/s HDLC or transparent */
+ iif->ctr.profile.support1 = 0x03;
+ /* B2 protocols: transparent only */
+ /* ToDo: X.75 SLP ? */
+ iif->ctr.profile.support2 = 0x02;
+ /* B3 protocols: transparent only */
+ iif->ctr.profile.support3 = 0x01;
+ /* no serial number */
+ strcpy(iif->ctr.serial, "0");
+ capi_ctr_ready(&iif->ctr);
+}
+
+/**
+ * gigaset_isdn_stop() - signal device unavailability
+ * @cs: device descriptor structure.
+ *
+ * Called by main module to notify the LL that the device is no longer
+ * available for use.
+ */
+void gigaset_isdn_stop(struct cardstate *cs)
+{
+ struct gigaset_capi_ctr *iif = cs->iif;
+ capi_ctr_down(&iif->ctr);
+}
+
+/*
+ * kernel CAPI callback methods
+ * ============================
+ */
+
+/*
+ * load firmware
+ */
+static int gigaset_load_firmware(struct capi_ctr *ctr, capiloaddata *data)
+{
+ struct cardstate *cs = ctr->driverdata;
+
+ /* AVM specific operation, not needed for Gigaset -- ignore */
+ dev_notice(cs->dev, "load_firmware ignored\n");
+
+ return 0;
+}
+
+/*
+ * reset (deactivate) controller
+ */
+static void gigaset_reset_ctr(struct capi_ctr *ctr)
+{
+ struct cardstate *cs = ctr->driverdata;
+
+ /* AVM specific operation, not needed for Gigaset -- ignore */
+ dev_notice(cs->dev, "reset_ctr ignored\n");
+}
+
+/*
+ * register CAPI application
+ */
+static void gigaset_register_appl(struct capi_ctr *ctr, u16 appl,
+ capi_register_params *rp)
+{
+ struct gigaset_capi_ctr *iif
+ = container_of(ctr, struct gigaset_capi_ctr, ctr);
+ struct cardstate *cs = ctr->driverdata;
+ struct gigaset_capi_appl *ap;
+
+ list_for_each_entry(ap, &iif->appls, ctrlist)
+ if (ap->id == appl) {
+ dev_notice(cs->dev,
+ "application %u already registered\n", appl);
+ return;
+ }
+
+ ap = kzalloc(sizeof(*ap), GFP_KERNEL);
+ if (!ap) {
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
+ return;
+ }
+ ap->id = appl;
+
+ list_add(&ap->ctrlist, &iif->appls);
+}
+
+/*
+ * release CAPI application
+ */
+static void gigaset_release_appl(struct capi_ctr *ctr, u16 appl)
+{
+ struct gigaset_capi_ctr *iif
+ = container_of(ctr, struct gigaset_capi_ctr, ctr);
+ struct cardstate *cs = iif->ctr.driverdata;
+ struct gigaset_capi_appl *ap, *tmp;
+
+ list_for_each_entry_safe(ap, tmp, &iif->appls, ctrlist)
+ if (ap->id == appl) {
+ if (ap->connected != APCONN_NONE) {
+ dev_err(cs->dev,
+ "%s: application %u still connected\n",
+ __func__, ap->id);
+ /* ToDo: clear active connection */
+ }
+ list_del(&ap->ctrlist);
+ kfree(ap);
+ }
+
+}
+
+/*
+ * =====================================================================
+ * outgoing CAPI message handler
+ * =====================================================================
+ */
+
+/*
+ * helper function: emit reply message with given Info value
+ */
+static void send_conf(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb,
+ u16 info)
+{
+ /*
+ * _CONF replies always only have NCCI and Info parameters
+ * so they'll fit into the _REQ message skb
+ */
+ capi_cmsg_answer(&iif->acmsg);
+ iif->acmsg.Info = info;
+ capi_cmsg2message(&iif->acmsg, skb->data);
+ __skb_trim(skb, CAPI_STDCONF_LEN);
+ dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
+ capi_ctr_handle_message(&iif->ctr, ap->id, skb);
+}
+
+/*
+ * process FACILITY_REQ message
+ */
+static void do_facility_req(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ struct cardstate *cs = iif->ctr.driverdata;
+ _cmsg *cmsg = &iif->acmsg;
+ struct sk_buff *cskb;
+ u8 *pparam;
+ unsigned int msgsize = CAPI_FACILITY_CONF_BASELEN;
+ u16 function, info;
+ static u8 confparam[10]; /* max. 9 octets + length byte */
+
+ /* decode message */
+ capi_message2cmsg(cmsg, skb->data);
+ dump_cmsg(DEBUG_CMD, __func__, cmsg);
+
+ /*
+ * Facility Request Parameter is not decoded by capi_message2cmsg()
+ * encoding depends on Facility Selector
+ */
+ switch (cmsg->FacilitySelector) {
+ case CAPI_FACILITY_DTMF: /* ToDo */
+ info = CapiFacilityNotSupported;
+ confparam[0] = 2; /* length */
+ /* DTMF information: Unknown DTMF request */
+ capimsg_setu16(confparam, 1, 2);
+ break;
+
+ case CAPI_FACILITY_V42BIS: /* not supported */
+ info = CapiFacilityNotSupported;
+ confparam[0] = 2; /* length */
+ /* V.42 bis information: not available */
+ capimsg_setu16(confparam, 1, 1);
+ break;
+
+ case CAPI_FACILITY_SUPPSVC:
+ /* decode Function parameter */
+ pparam = cmsg->FacilityRequestParameter;
+ if (pparam == NULL || *pparam < 2) {
+ dev_notice(cs->dev, "%s: %s missing\n", "FACILITY_REQ",
+ "Facility Request Parameter");
+ send_conf(iif, ap, skb, CapiIllMessageParmCoding);
+ return;
+ }
+ function = CAPIMSG_U16(pparam, 1);
+ switch (function) {
+ case CAPI_SUPPSVC_GETSUPPORTED:
+ info = CapiSuccess;
+ /* Supplementary Service specific parameter */
+ confparam[3] = 6; /* length */
+ /* Supplementary services info: Success */
+ capimsg_setu16(confparam, 4, CapiSuccess);
+ /* Supported Services: none */
+ capimsg_setu32(confparam, 6, 0);
+ break;
+ /* ToDo: add supported services */
+ default:
+ info = CapiFacilitySpecificFunctionNotSupported;
+ /* Supplementary Service specific parameter */
+ confparam[3] = 2; /* length */
+ /* Supplementary services info: not supported */
+ capimsg_setu16(confparam, 4,
+ CapiSupplementaryServiceNotSupported);
+ }
+
+ /* Facility confirmation parameter */
+ confparam[0] = confparam[3] + 3; /* total length */
+ /* Function: copy from _REQ message */
+ capimsg_setu16(confparam, 1, function);
+ /* Supplementary Service specific parameter already set above */
+ break;
+
+ case CAPI_FACILITY_WAKEUP: /* ToDo */
+ info = CapiFacilityNotSupported;
+ confparam[0] = 2; /* length */
+ /* Number of accepted awake request parameters: 0 */
+ capimsg_setu16(confparam, 1, 0);
+ break;
+
+ default:
+ info = CapiFacilityNotSupported;
+ confparam[0] = 0; /* empty struct */
+ }
+
+ /* send FACILITY_CONF with given Info and confirmation parameter */
+ capi_cmsg_answer(cmsg);
+ cmsg->Info = info;
+ cmsg->FacilityConfirmationParameter = confparam;
+ msgsize += confparam[0]; /* length */
+ cskb = alloc_skb(msgsize, GFP_ATOMIC);
+ if (!cskb) {
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
+ return;
+ }
+ capi_cmsg2message(cmsg, __skb_put(cskb, msgsize));
+ dump_cmsg(DEBUG_CMD, __func__, cmsg);
+ capi_ctr_handle_message(&iif->ctr, ap->id, cskb);
+}
+
+
+/*
+ * process LISTEN_REQ message
+ * just store the masks in the application data structure
+ */
+static void do_listen_req(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ /* decode message */
+ capi_message2cmsg(&iif->acmsg, skb->data);
+ dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
+
+ /* store listening parameters */
+ ap->listenInfoMask = iif->acmsg.InfoMask;
+ ap->listenCIPmask = iif->acmsg.CIPmask;
+ send_conf(iif, ap, skb, CapiSuccess);
+}
+
+/*
+ * process ALERT_REQ message
+ * nothing to do, Gigaset always alerts anyway
+ */
+static void do_alert_req(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ /* decode message */
+ capi_message2cmsg(&iif->acmsg, skb->data);
+ dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
+ send_conf(iif, ap, skb, CapiAlertAlreadySent);
+}
+
+/*
+ * process CONNECT_REQ message
+ * allocate a B channel, prepare dial commands, queue a DIAL event,
+ * emit CONNECT_CONF reply
+ */
+static void do_connect_req(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ struct cardstate *cs = iif->ctr.driverdata;
+ _cmsg *cmsg = &iif->acmsg;
+ struct bc_state *bcs;
+ char **commands;
+ char *s;
+ u8 *pp;
+ int i, l;
+ u16 info;
+
+ /* decode message */
+ capi_message2cmsg(cmsg, skb->data);
+ dump_cmsg(DEBUG_CMD, __func__, cmsg);
+
+ /* get free B channel & construct PLCI */
+ bcs = gigaset_get_free_channel(cs);
+ if (!bcs) {
+ dev_notice(cs->dev, "%s: no B channel available\n",
+ "CONNECT_REQ");
+ send_conf(iif, ap, skb, CapiNoPlciAvailable);
+ return;
+ }
+ ap->bcnext = NULL;
+ bcs->ap = ap;
+ cmsg->adr.adrPLCI |= (bcs->channel + 1) << 8;
+
+ /* build command table */
+ commands = kzalloc(AT_NUM*(sizeof *commands), GFP_KERNEL);
+ if (!commands)
+ goto oom;
+
+ /* encode parameter: Called party number */
+ pp = cmsg->CalledPartyNumber;
+ if (pp == NULL || *pp == 0) {
+ dev_notice(cs->dev, "%s: %s missing\n",
+ "CONNECT_REQ", "Called party number");
+ info = CapiIllMessageParmCoding;
+ goto error;
+ }
+ l = *pp++;
+ /* check type of number/numbering plan byte */
+ switch (*pp) {
+ case 0x80: /* unknown type / unknown numbering plan */
+ case 0x81: /* unknown type / ISDN/Telephony numbering plan */
+ break;
+ default: /* others: warn about potential misinterpretation */
+ dev_notice(cs->dev, "%s: %s type/plan 0x%02x unsupported\n",
+ "CONNECT_REQ", "Called party number", *pp);
+ }
+ pp++;
+ l--;
+ /* translate "**" internal call prefix to CTP value */
+ if (l >= 2 && pp[0] == '*' && pp[1] == '*') {
+ s = "^SCTP=0\r";
+ pp += 2;
+ l -= 2;
+ } else {
+ s = "^SCTP=1\r";
+ }
+ commands[AT_TYPE] = kstrdup(s, GFP_KERNEL);
+ if (!commands[AT_TYPE])
+ goto oom;
+ commands[AT_DIAL] = kmalloc(l+3, GFP_KERNEL);
+ if (!commands[AT_DIAL])
+ goto oom;
+ snprintf(commands[AT_DIAL], l+3, "D%.*s\r", l, pp);
+
+ /* encode parameter: Calling party number */
+ pp = cmsg->CallingPartyNumber;
+ if (pp != NULL && *pp > 0) {
+ l = *pp++;
+
+ /* check type of number/numbering plan byte */
+ /* ToDo: allow for/handle Ext=1? */
+ switch (*pp) {
+ case 0x00: /* unknown type / unknown numbering plan */
+ case 0x01: /* unknown type / ISDN/Telephony num. plan */
+ break;
+ default:
+ dev_notice(cs->dev,
+ "%s: %s type/plan 0x%02x unsupported\n",
+ "CONNECT_REQ", "Calling party number", *pp);
+ }
+ pp++;
+ l--;
+
+ /* check presentation indicator */
+ if (!l) {
+ dev_notice(cs->dev, "%s: %s IE truncated\n",
+ "CONNECT_REQ", "Calling party number");
+ info = CapiIllMessageParmCoding;
+ goto error;
+ }
+ switch (*pp & 0xfc) { /* ignore Screening indicator */
+ case 0x80: /* Presentation allowed */
+ s = "^SCLIP=1\r";
+ break;
+ case 0xa0: /* Presentation restricted */
+ s = "^SCLIP=0\r";
+ break;
+ default:
+ dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
+ "CONNECT_REQ",
+ "Presentation/Screening indicator",
+ *pp);
+ s = "^SCLIP=1\r";
+ }
+ commands[AT_CLIP] = kstrdup(s, GFP_KERNEL);
+ if (!commands[AT_CLIP])
+ goto oom;
+ pp++;
+ l--;
+
+ if (l) {
+ /* number */
+ commands[AT_MSN] = kmalloc(l+8, GFP_KERNEL);
+ if (!commands[AT_MSN])
+ goto oom;
+ snprintf(commands[AT_MSN], l+8, "^SMSN=%*s\r", l, pp);
+ }
+ }
+
+ /* check parameter: CIP Value */
+ if (cmsg->CIPValue > ARRAY_SIZE(cip2bchlc) ||
+ (cmsg->CIPValue > 0 && cip2bchlc[cmsg->CIPValue].bc == NULL)) {
+ dev_notice(cs->dev, "%s: unknown CIP value %d\n",
+ "CONNECT_REQ", cmsg->CIPValue);
+ info = CapiCipValueUnknown;
+ goto error;
+ }
+
+ /* check/encode parameter: BC */
+ if (cmsg->BC && cmsg->BC[0]) {
+ /* explicit BC overrides CIP */
+ l = 2*cmsg->BC[0] + 7;
+ commands[AT_BC] = kmalloc(l, GFP_KERNEL);
+ if (!commands[AT_BC])
+ goto oom;
+ strcpy(commands[AT_BC], "^SBC=");
+ decode_ie(cmsg->BC, commands[AT_BC]+5);
+ strcpy(commands[AT_BC] + l - 2, "\r");
+ } else if (cip2bchlc[cmsg->CIPValue].bc) {
+ l = strlen(cip2bchlc[cmsg->CIPValue].bc) + 7;
+ commands[AT_BC] = kmalloc(l, GFP_KERNEL);
+ if (!commands[AT_BC])
+ goto oom;
+ snprintf(commands[AT_BC], l, "^SBC=%s\r",
+ cip2bchlc[cmsg->CIPValue].bc);
+ }
+
+ /* check/encode parameter: HLC */
+ if (cmsg->HLC && cmsg->HLC[0]) {
+ /* explicit HLC overrides CIP */
+ l = 2*cmsg->HLC[0] + 7;
+ commands[AT_HLC] = kmalloc(l, GFP_KERNEL);
+ if (!commands[AT_HLC])
+ goto oom;
+ strcpy(commands[AT_HLC], "^SHLC=");
+ decode_ie(cmsg->HLC, commands[AT_HLC]+5);
+ strcpy(commands[AT_HLC] + l - 2, "\r");
+ } else if (cip2bchlc[cmsg->CIPValue].hlc) {
+ l = strlen(cip2bchlc[cmsg->CIPValue].hlc) + 7;
+ commands[AT_HLC] = kmalloc(l, GFP_KERNEL);
+ if (!commands[AT_HLC])
+ goto oom;
+ snprintf(commands[AT_HLC], l, "^SHLC=%s\r",
+ cip2bchlc[cmsg->CIPValue].hlc);
+ }
+
+ /* check/encode parameter: B Protocol */
+ if (cmsg->BProtocol == CAPI_DEFAULT) {
+ bcs->proto2 = L2_HDLC;
+ dev_warn(cs->dev,
+ "B2 Protocol X.75 SLP unsupported, using Transparent\n");
+ } else {
+ switch (cmsg->B1protocol) {
+ case 0:
+ bcs->proto2 = L2_HDLC;
+ break;
+ case 1:
+ bcs->proto2 = L2_BITSYNC;
+ break;
+ default:
+ dev_warn(cs->dev,
+ "B1 Protocol %u unsupported, using Transparent\n",
+ cmsg->B1protocol);
+ bcs->proto2 = L2_BITSYNC;
+ }
+ if (cmsg->B2protocol != 1)
+ dev_warn(cs->dev,
+ "B2 Protocol %u unsupported, using Transparent\n",
+ cmsg->B2protocol);
+ if (cmsg->B3protocol != 0)
+ dev_warn(cs->dev,
+ "B3 Protocol %u unsupported, using Transparent\n",
+ cmsg->B3protocol);
+ ignore_cstruct_param(cs, cmsg->B1configuration,
+ "CONNECT_REQ", "B1 Configuration");
+ ignore_cstruct_param(cs, cmsg->B2configuration,
+ "CONNECT_REQ", "B2 Configuration");
+ ignore_cstruct_param(cs, cmsg->B3configuration,
+ "CONNECT_REQ", "B3 Configuration");
+ }
+ commands[AT_PROTO] = kmalloc(9, GFP_KERNEL);
+ if (!commands[AT_PROTO])
+ goto oom;
+ snprintf(commands[AT_PROTO], 9, "^SBPR=%u\r", bcs->proto2);
+
+ /* ToDo: check/encode remaining parameters */
+ ignore_cstruct_param(cs, cmsg->CalledPartySubaddress,
+ "CONNECT_REQ", "Called pty subaddr");
+ ignore_cstruct_param(cs, cmsg->CallingPartySubaddress,
+ "CONNECT_REQ", "Calling pty subaddr");
+ ignore_cstruct_param(cs, cmsg->LLC,
+ "CONNECT_REQ", "LLC");
+ if (cmsg->AdditionalInfo != CAPI_DEFAULT) {
+ ignore_cstruct_param(cs, cmsg->BChannelinformation,
+ "CONNECT_REQ", "B Channel Information");
+ ignore_cstruct_param(cs, cmsg->Keypadfacility,
+ "CONNECT_REQ", "Keypad Facility");
+ ignore_cstruct_param(cs, cmsg->Useruserdata,
+ "CONNECT_REQ", "User-User Data");
+ ignore_cstruct_param(cs, cmsg->Facilitydataarray,
+ "CONNECT_REQ", "Facility Data Array");
+ }
+
+ /* encode parameter: B channel to use */
+ commands[AT_ISO] = kmalloc(9, GFP_KERNEL);
+ if (!commands[AT_ISO])
+ goto oom;
+ snprintf(commands[AT_ISO], 9, "^SISO=%u\r",
+ (unsigned) bcs->channel + 1);
+
+ /* queue & schedule EV_DIAL event */
+ if (!gigaset_add_event(cs, &bcs->at_state, EV_DIAL, commands,
+ bcs->at_state.seq_index, NULL))
+ goto oom;
+ gig_dbg(DEBUG_CMD, "scheduling DIAL");
+ gigaset_schedule_event(cs);
+ ap->connected = APCONN_SETUP;
+ send_conf(iif, ap, skb, CapiSuccess);
+ return;
+
+oom:
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
+ info = CAPI_MSGOSRESOURCEERR;
+error:
+ if (commands)
+ for (i = 0; i < AT_NUM; i++)
+ kfree(commands[i]);
+ kfree(commands);
+ gigaset_free_channel(bcs);
+ send_conf(iif, ap, skb, info);
+}
+
+/*
+ * process CONNECT_RESP message
+ * checks protocol parameters and queues an ACCEPT or HUP event
+ */
+static void do_connect_resp(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ struct cardstate *cs = iif->ctr.driverdata;
+ _cmsg *cmsg = &iif->acmsg;
+ struct bc_state *bcs;
+ struct gigaset_capi_appl *oap;
+ int channel;
+
+ /* decode message */
+ capi_message2cmsg(cmsg, skb->data);
+ dump_cmsg(DEBUG_CMD, __func__, cmsg);
+ dev_kfree_skb_any(skb);
+
+ /* extract and check channel number from PLCI */
+ channel = (cmsg->adr.adrPLCI >> 8) & 0xff;
+ if (!channel || channel > cs->channels) {
+ dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
+ "CONNECT_RESP", "PLCI", cmsg->adr.adrPLCI);
+ return;
+ }
+ bcs = cs->bcs + channel - 1;
+
+ switch (cmsg->Reject) {
+ case 0: /* Accept */
+ /* drop all competing applications, keep only this one */
+ for (oap = bcs->ap; oap != NULL; oap = oap->bcnext)
+ if (oap != ap)
+ send_disconnect_ind(bcs, oap,
+ CapiCallGivenToOtherApplication);
+ ap->bcnext = NULL;
+ bcs->ap = ap;
+ bcs->chstate |= CHS_NOTIFY_LL;
+
+ /* check/encode B channel protocol */
+ if (cmsg->BProtocol == CAPI_DEFAULT) {
+ bcs->proto2 = L2_HDLC;
+ dev_warn(cs->dev,
+ "B2 Protocol X.75 SLP unsupported, using Transparent\n");
+ } else {
+ switch (cmsg->B1protocol) {
+ case 0:
+ bcs->proto2 = L2_HDLC;
+ break;
+ case 1:
+ bcs->proto2 = L2_BITSYNC;
+ break;
+ default:
+ dev_warn(cs->dev,
+ "B1 Protocol %u unsupported, using Transparent\n",
+ cmsg->B1protocol);
+ bcs->proto2 = L2_BITSYNC;
+ }
+ if (cmsg->B2protocol != 1)
+ dev_warn(cs->dev,
+ "B2 Protocol %u unsupported, using Transparent\n",
+ cmsg->B2protocol);
+ if (cmsg->B3protocol != 0)
+ dev_warn(cs->dev,
+ "B3 Protocol %u unsupported, using Transparent\n",
+ cmsg->B3protocol);
+ ignore_cstruct_param(cs, cmsg->B1configuration,
+ "CONNECT_RESP", "B1 Configuration");
+ ignore_cstruct_param(cs, cmsg->B2configuration,
+ "CONNECT_RESP", "B2 Configuration");
+ ignore_cstruct_param(cs, cmsg->B3configuration,
+ "CONNECT_RESP", "B3 Configuration");
+ }
+
+ /* ToDo: check/encode remaining parameters */
+ ignore_cstruct_param(cs, cmsg->ConnectedNumber,
+ "CONNECT_RESP", "Connected Number");
+ ignore_cstruct_param(cs, cmsg->ConnectedSubaddress,
+ "CONNECT_RESP", "Connected Subaddress");
+ ignore_cstruct_param(cs, cmsg->LLC,
+ "CONNECT_RESP", "LLC");
+ if (cmsg->AdditionalInfo != CAPI_DEFAULT) {
+ ignore_cstruct_param(cs, cmsg->BChannelinformation,
+ "CONNECT_RESP", "BChannel Information");
+ ignore_cstruct_param(cs, cmsg->Keypadfacility,
+ "CONNECT_RESP", "Keypad Facility");
+ ignore_cstruct_param(cs, cmsg->Useruserdata,
+ "CONNECT_RESP", "User-User Data");
+ ignore_cstruct_param(cs, cmsg->Facilitydataarray,
+ "CONNECT_RESP", "Facility Data Array");
+ }
+
+ /* Accept call */
+ if (!gigaset_add_event(cs, &cs->bcs[channel-1].at_state,
+ EV_ACCEPT, NULL, 0, NULL))
+ return;
+ gig_dbg(DEBUG_CMD, "scheduling ACCEPT");
+ gigaset_schedule_event(cs);
+ return;
+
+ case 1: /* Ignore */
+ /* send DISCONNECT_IND to this application */
+ send_disconnect_ind(bcs, ap, 0);
+
+ /* remove it from the list of listening apps */
+ if (bcs->ap == ap) {
+ bcs->ap = ap->bcnext;
+ if (bcs->ap == NULL)
+ /* last one: stop ev-layer hupD notifications */
+ bcs->chstate &= ~CHS_NOTIFY_LL;
+ return;
+ }
+ for (oap = bcs->ap; oap != NULL; oap = oap->bcnext) {
+ if (oap->bcnext == ap) {
+ oap->bcnext = oap->bcnext->bcnext;
+ return;
+ }
+ }
+ dev_err(cs->dev, "%s: application %u not found\n",
+ __func__, ap->id);
+ return;
+
+ default: /* Reject */
+ /* drop all competing applications, keep only this one */
+ for (oap = bcs->ap; oap != NULL; oap = oap->bcnext)
+ if (oap != ap)
+ send_disconnect_ind(bcs, oap,
+ CapiCallGivenToOtherApplication);
+ ap->bcnext = NULL;
+ bcs->ap = ap;
+
+ /* reject call - will trigger DISCONNECT_IND for this app */
+ dev_info(cs->dev, "%s: Reject=%x\n",
+ "CONNECT_RESP", cmsg->Reject);
+ if (!gigaset_add_event(cs, &cs->bcs[channel-1].at_state,
+ EV_HUP, NULL, 0, NULL))
+ return;
+ gig_dbg(DEBUG_CMD, "scheduling HUP");
+ gigaset_schedule_event(cs);
+ return;
+ }
+}
+
+/*
+ * process CONNECT_B3_REQ message
+ * build NCCI and emit CONNECT_B3_CONF reply
+ */
+static void do_connect_b3_req(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ struct cardstate *cs = iif->ctr.driverdata;
+ _cmsg *cmsg = &iif->acmsg;
+ int channel;
+
+ /* decode message */
+ capi_message2cmsg(cmsg, skb->data);
+ dump_cmsg(DEBUG_CMD, __func__, cmsg);
+
+ /* extract and check channel number from PLCI */
+ channel = (cmsg->adr.adrPLCI >> 8) & 0xff;
+ if (!channel || channel > cs->channels) {
+ dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
+ "CONNECT_B3_REQ", "PLCI", cmsg->adr.adrPLCI);
+ send_conf(iif, ap, skb, CapiIllContrPlciNcci);
+ return;
+ }
+
+ /* mark logical connection active */
+ ap->connected = APCONN_ACTIVE;
+
+ /* build NCCI: always 1 (one B3 connection only) */
+ cmsg->adr.adrNCCI |= 1 << 16;
+
+ /* NCPI parameter: not applicable for B3 Transparent */
+ ignore_cstruct_param(cs, cmsg->NCPI, "CONNECT_B3_REQ", "NCPI");
+ send_conf(iif, ap, skb, (cmsg->NCPI && cmsg->NCPI[0]) ?
+ CapiNcpiNotSupportedByProtocol : CapiSuccess);
+}
+
+/*
+ * process CONNECT_B3_RESP message
+ * Depending on the Reject parameter, either emit CONNECT_B3_ACTIVE_IND
+ * or queue EV_HUP and emit DISCONNECT_B3_IND.
+ * The emitted message is always shorter than the received one,
+ * allowing to reuse the skb.
+ */
+static void do_connect_b3_resp(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ struct cardstate *cs = iif->ctr.driverdata;
+ _cmsg *cmsg = &iif->acmsg;
+ struct bc_state *bcs;
+ int channel;
+ unsigned int msgsize;
+ u8 command;
+
+ /* decode message */
+ capi_message2cmsg(cmsg, skb->data);
+ dump_cmsg(DEBUG_CMD, __func__, cmsg);
+
+ /* extract and check channel number and NCCI */
+ channel = (cmsg->adr.adrNCCI >> 8) & 0xff;
+ if (!channel || channel > cs->channels ||
+ ((cmsg->adr.adrNCCI >> 16) & 0xffff) != 1) {
+ dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
+ "CONNECT_B3_RESP", "NCCI", cmsg->adr.adrNCCI);
+ dev_kfree_skb_any(skb);
+ return;
+ }
+ bcs = &cs->bcs[channel-1];
+
+ if (cmsg->Reject) {
+ /* Reject: clear B3 connect received flag */
+ ap->connected = APCONN_SETUP;
+
+ /* trigger hangup, causing eventual DISCONNECT_IND */
+ if (!gigaset_add_event(cs, &bcs->at_state,
+ EV_HUP, NULL, 0, NULL)) {
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
+ dev_kfree_skb_any(skb);
+ return;
+ }
+ gig_dbg(DEBUG_CMD, "scheduling HUP");
+ gigaset_schedule_event(cs);
+
+ /* emit DISCONNECT_B3_IND */
+ command = CAPI_DISCONNECT_B3;
+ msgsize = CAPI_DISCONNECT_B3_IND_BASELEN;
+ } else {
+ /*
+ * Accept: emit CONNECT_B3_ACTIVE_IND immediately, as
+ * we only send CONNECT_B3_IND if the B channel is up
+ */
+ command = CAPI_CONNECT_B3_ACTIVE;
+ msgsize = CAPI_CONNECT_B3_ACTIVE_IND_BASELEN;
+ }
+ capi_cmsg_header(cmsg, ap->id, command, CAPI_IND,
+ ap->nextMessageNumber++, cmsg->adr.adrNCCI);
+ __skb_trim(skb, msgsize);
+ capi_cmsg2message(cmsg, skb->data);
+ dump_cmsg(DEBUG_CMD, __func__, cmsg);
+ capi_ctr_handle_message(&iif->ctr, ap->id, skb);
+}
+
+/*
+ * process DISCONNECT_REQ message
+ * schedule EV_HUP and emit DISCONNECT_B3_IND if necessary,
+ * emit DISCONNECT_CONF reply
+ */
+static void do_disconnect_req(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ struct cardstate *cs = iif->ctr.driverdata;
+ _cmsg *cmsg = &iif->acmsg;
+ struct bc_state *bcs;
+ _cmsg *b3cmsg;
+ struct sk_buff *b3skb;
+ int channel;
+
+ /* decode message */
+ capi_message2cmsg(cmsg, skb->data);
+ dump_cmsg(DEBUG_CMD, __func__, cmsg);
+
+ /* extract and check channel number from PLCI */
+ channel = (cmsg->adr.adrPLCI >> 8) & 0xff;
+ if (!channel || channel > cs->channels) {
+ dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
+ "DISCONNECT_REQ", "PLCI", cmsg->adr.adrPLCI);
+ send_conf(iif, ap, skb, CapiIllContrPlciNcci);
+ return;
+ }
+ bcs = cs->bcs + channel - 1;
+
+ /* ToDo: process parameter: Additional info */
+ if (cmsg->AdditionalInfo != CAPI_DEFAULT) {
+ ignore_cstruct_param(cs, cmsg->BChannelinformation,
+ "DISCONNECT_REQ", "B Channel Information");
+ ignore_cstruct_param(cs, cmsg->Keypadfacility,
+ "DISCONNECT_REQ", "Keypad Facility");
+ ignore_cstruct_param(cs, cmsg->Useruserdata,
+ "DISCONNECT_REQ", "User-User Data");
+ ignore_cstruct_param(cs, cmsg->Facilitydataarray,
+ "DISCONNECT_REQ", "Facility Data Array");
+ }
+
+ /* skip if DISCONNECT_IND already sent */
+ if (!ap->connected)
+ return;
+
+ /* check for active logical connection */
+ if (ap->connected >= APCONN_ACTIVE) {
+ /*
+ * emit DISCONNECT_B3_IND with cause 0x3301
+ * use separate cmsg structure, as the content of iif->acmsg
+ * is still needed for creating the _CONF message
+ */
+ b3cmsg = kmalloc(sizeof(*b3cmsg), GFP_KERNEL);
+ if (!b3cmsg) {
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
+ send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
+ return;
+ }
+ capi_cmsg_header(b3cmsg, ap->id, CAPI_DISCONNECT_B3, CAPI_IND,
+ ap->nextMessageNumber++,
+ cmsg->adr.adrPLCI | (1 << 16));
+ b3cmsg->Reason_B3 = CapiProtocolErrorLayer1;
+ b3skb = alloc_skb(CAPI_DISCONNECT_B3_IND_BASELEN, GFP_KERNEL);
+ if (b3skb == NULL) {
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
+ send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
+ return;
+ }
+ capi_cmsg2message(b3cmsg,
+ __skb_put(b3skb, CAPI_DISCONNECT_B3_IND_BASELEN));
+ kfree(b3cmsg);
+ capi_ctr_handle_message(&iif->ctr, ap->id, b3skb);
+ }
+
+ /* trigger hangup, causing eventual DISCONNECT_IND */
+ if (!gigaset_add_event(cs, &bcs->at_state, EV_HUP, NULL, 0, NULL)) {
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
+ send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
+ return;
+ }
+ gig_dbg(DEBUG_CMD, "scheduling HUP");
+ gigaset_schedule_event(cs);
+
+ /* emit reply */
+ send_conf(iif, ap, skb, CapiSuccess);
+}
+
+/*
+ * process DISCONNECT_B3_REQ message
+ * schedule EV_HUP and emit DISCONNECT_B3_CONF reply
+ */
+static void do_disconnect_b3_req(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ struct cardstate *cs = iif->ctr.driverdata;
+ _cmsg *cmsg = &iif->acmsg;
+ int channel;
+
+ /* decode message */
+ capi_message2cmsg(cmsg, skb->data);
+ dump_cmsg(DEBUG_CMD, __func__, cmsg);
+
+ /* extract and check channel number and NCCI */
+ channel = (cmsg->adr.adrNCCI >> 8) & 0xff;
+ if (!channel || channel > cs->channels ||
+ ((cmsg->adr.adrNCCI >> 16) & 0xffff) != 1) {
+ dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
+ "DISCONNECT_B3_REQ", "NCCI", cmsg->adr.adrNCCI);
+ send_conf(iif, ap, skb, CapiIllContrPlciNcci);
+ return;
+ }
+
+ /* reject if logical connection not active */
+ if (ap->connected < APCONN_ACTIVE) {
+ send_conf(iif, ap, skb,
+ CapiMessageNotSupportedInCurrentState);
+ return;
+ }
+
+ /* trigger hangup, causing eventual DISCONNECT_B3_IND */
+ if (!gigaset_add_event(cs, &cs->bcs[channel-1].at_state,
+ EV_HUP, NULL, 0, NULL)) {
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
+ send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
+ return;
+ }
+ gig_dbg(DEBUG_CMD, "scheduling HUP");
+ gigaset_schedule_event(cs);
+
+ /* NCPI parameter: not applicable for B3 Transparent */
+ ignore_cstruct_param(cs, cmsg->NCPI,
+ "DISCONNECT_B3_REQ", "NCPI");
+ send_conf(iif, ap, skb, (cmsg->NCPI && cmsg->NCPI[0]) ?
+ CapiNcpiNotSupportedByProtocol : CapiSuccess);
+}
+
+/*
+ * process DATA_B3_REQ message
+ */
+static void do_data_b3_req(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ struct cardstate *cs = iif->ctr.driverdata;
+ int channel = CAPIMSG_PLCI_PART(skb->data);
+ u16 ncci = CAPIMSG_NCCI_PART(skb->data);
+ u16 msglen = CAPIMSG_LEN(skb->data);
+ u16 datalen = CAPIMSG_DATALEN(skb->data);
+ u16 flags = CAPIMSG_FLAGS(skb->data);
+
+ /* frequent message, avoid _cmsg overhead */
+ dump_rawmsg(DEBUG_LLDATA, "DATA_B3_REQ", skb->data);
+
+ gig_dbg(DEBUG_LLDATA,
+ "Receiving data from LL (ch: %d, flg: %x, sz: %d|%d)",
+ channel, flags, msglen, datalen);
+
+ /* check parameters */
+ if (channel == 0 || channel > cs->channels || ncci != 1) {
+ dev_notice(cs->dev, "%s: invalid %s 0x%02x\n",
+ "DATA_B3_REQ", "NCCI", CAPIMSG_NCCI(skb->data));
+ send_conf(iif, ap, skb, CapiIllContrPlciNcci);
+ return;
+ }
+ if (msglen != CAPI_DATA_B3_REQ_LEN && msglen != CAPI_DATA_B3_REQ_LEN64)
+ dev_notice(cs->dev, "%s: unexpected length %d\n",
+ "DATA_B3_REQ", msglen);
+ if (msglen + datalen != skb->len)
+ dev_notice(cs->dev, "%s: length mismatch (%d+%d!=%d)\n",
+ "DATA_B3_REQ", msglen, datalen, skb->len);
+ if (msglen + datalen > skb->len) {
+ /* message too short for announced data length */
+ send_conf(iif, ap, skb, CapiIllMessageParmCoding); /* ? */
+ return;
+ }
+ if (flags & CAPI_FLAGS_RESERVED) {
+ dev_notice(cs->dev, "%s: reserved flags set (%x)\n",
+ "DATA_B3_REQ", flags);
+ send_conf(iif, ap, skb, CapiIllMessageParmCoding);
+ return;
+ }
+
+ /* reject if logical connection not active */
+ if (ap->connected < APCONN_ACTIVE) {
+ send_conf(iif, ap, skb, CapiMessageNotSupportedInCurrentState);
+ return;
+ }
+
+ /* pull CAPI message into link layer header */
+ skb_reset_mac_header(skb);
+ skb->mac_len = msglen;
+ skb_pull(skb, msglen);
+
+ /* pass to device-specific module */
+ if (cs->ops->send_skb(&cs->bcs[channel-1], skb) < 0) {
+ send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
+ return;
+ }
+
+ /* DATA_B3_CONF reply will be sent by gigaset_skb_sent() */
+
+ /*
+ * ToDo: honor unset "delivery confirmation" bit
+ * (send DATA_B3_CONF immediately?)
+ */
+}
+
+/*
+ * process RESET_B3_REQ message
+ * just always reply "not supported by current protocol"
+ */
+static void do_reset_b3_req(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ /* decode message */
+ capi_message2cmsg(&iif->acmsg, skb->data);
+ dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
+ send_conf(iif, ap, skb,
+ CapiResetProcedureNotSupportedByCurrentProtocol);
+}
+
+/*
+ * dump unsupported/ignored messages at most twice per minute,
+ * some apps send those very frequently
+ */
+static unsigned long ignored_msg_dump_time;
+
+/*
+ * unsupported CAPI message handler
+ */
+static void do_unsupported(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ /* decode message */
+ capi_message2cmsg(&iif->acmsg, skb->data);
+ if (printk_timed_ratelimit(&ignored_msg_dump_time, 30 * 1000))
+ dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
+ send_conf(iif, ap, skb, CapiMessageNotSupportedInCurrentState);
+}
+
+/*
+ * CAPI message handler: no-op
+ */
+static void do_nothing(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ if (printk_timed_ratelimit(&ignored_msg_dump_time, 30 * 1000)) {
+ /* decode message */
+ capi_message2cmsg(&iif->acmsg, skb->data);
+ dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg);
+ }
+ dev_kfree_skb_any(skb);
+}
+
+static void do_data_b3_resp(struct gigaset_capi_ctr *iif,
+ struct gigaset_capi_appl *ap,
+ struct sk_buff *skb)
+{
+ dump_rawmsg(DEBUG_LLDATA, __func__, skb->data);
+ dev_kfree_skb_any(skb);
+}
+
+/* table of outgoing CAPI message handlers with lookup function */
+typedef void (*capi_send_handler_t)(struct gigaset_capi_ctr *,
+ struct gigaset_capi_appl *,
+ struct sk_buff *);
+
+static struct {
+ u16 cmd;
+ capi_send_handler_t handler;
+} capi_send_handler_table[] = {
+ /* most frequent messages first for faster lookup */
+ { CAPI_DATA_B3_REQ, do_data_b3_req },
+ { CAPI_DATA_B3_RESP, do_data_b3_resp },
+
+ { CAPI_ALERT_REQ, do_alert_req },
+ { CAPI_CONNECT_ACTIVE_RESP, do_nothing },
+ { CAPI_CONNECT_B3_ACTIVE_RESP, do_nothing },
+ { CAPI_CONNECT_B3_REQ, do_connect_b3_req },
+ { CAPI_CONNECT_B3_RESP, do_connect_b3_resp },
+ { CAPI_CONNECT_B3_T90_ACTIVE_RESP, do_nothing },
+ { CAPI_CONNECT_REQ, do_connect_req },
+ { CAPI_CONNECT_RESP, do_connect_resp },
+ { CAPI_DISCONNECT_B3_REQ, do_disconnect_b3_req },
+ { CAPI_DISCONNECT_B3_RESP, do_nothing },
+ { CAPI_DISCONNECT_REQ, do_disconnect_req },
+ { CAPI_DISCONNECT_RESP, do_nothing },
+ { CAPI_FACILITY_REQ, do_facility_req },
+ { CAPI_FACILITY_RESP, do_nothing },
+ { CAPI_LISTEN_REQ, do_listen_req },
+ { CAPI_SELECT_B_PROTOCOL_REQ, do_unsupported },
+ { CAPI_RESET_B3_REQ, do_reset_b3_req },
+ { CAPI_RESET_B3_RESP, do_nothing },
+
+ /*
+ * ToDo: support overlap sending (requires ev-layer state
+ * machine extension to generate additional ATD commands)
+ */
+ { CAPI_INFO_REQ, do_unsupported },
+ { CAPI_INFO_RESP, do_nothing },
+
+ /*
+ * ToDo: what's the proper response for these?
+ */
+ { CAPI_MANUFACTURER_REQ, do_nothing },
+ { CAPI_MANUFACTURER_RESP, do_nothing },
+};
+
+/* look up handler */
+static inline capi_send_handler_t lookup_capi_send_handler(const u16 cmd)
+{
+ size_t i;
+
+ for (i = 0; i < ARRAY_SIZE(capi_send_handler_table); i++)
+ if (capi_send_handler_table[i].cmd == cmd)
+ return capi_send_handler_table[i].handler;
+ return NULL;
+}
+
+
+/**
+ * gigaset_send_message() - accept a CAPI message from an application
+ * @ctr: controller descriptor structure.
+ * @skb: CAPI message.
+ *
+ * Return value: CAPI error code
+ * Note: capidrv (and probably others, too) only uses the return value to
+ * decide whether it has to free the skb (only if result != CAPI_NOERROR (0))
+ */
+static u16 gigaset_send_message(struct capi_ctr *ctr, struct sk_buff *skb)
+{
+ struct gigaset_capi_ctr *iif
+ = container_of(ctr, struct gigaset_capi_ctr, ctr);
+ struct cardstate *cs = ctr->driverdata;
+ struct gigaset_capi_appl *ap;
+ capi_send_handler_t handler;
+
+ /* can only handle linear sk_buffs */
+ if (skb_linearize(skb) < 0) {
+ dev_warn(cs->dev, "%s: skb_linearize failed\n", __func__);
+ return CAPI_MSGOSRESOURCEERR;
+ }
+
+ /* retrieve application data structure */
+ ap = get_appl(iif, CAPIMSG_APPID(skb->data));
+ if (!ap) {
+ dev_notice(cs->dev, "%s: application %u not registered\n",
+ __func__, CAPIMSG_APPID(skb->data));
+ return CAPI_ILLAPPNR;
+ }
+
+ /* look up command */
+ handler = lookup_capi_send_handler(CAPIMSG_CMD(skb->data));
+ if (!handler) {
+ /* unknown/unsupported message type */
+ if (printk_ratelimit())
+ dev_notice(cs->dev, "%s: unsupported message %u\n",
+ __func__, CAPIMSG_CMD(skb->data));
+ return CAPI_ILLCMDORSUBCMDORMSGTOSMALL;
+ }
+
+ /* serialize */
+ if (atomic_add_return(1, &iif->sendqlen) > 1) {
+ /* queue behind other messages */
+ skb_queue_tail(&iif->sendqueue, skb);
+ return CAPI_NOERROR;
+ }
+
+ /* process message */
+ handler(iif, ap, skb);
+
+ /* process other messages arrived in the meantime */
+ while (atomic_sub_return(1, &iif->sendqlen) > 0) {
+ skb = skb_dequeue(&iif->sendqueue);
+ if (!skb) {
+ /* should never happen */
+ dev_err(cs->dev, "%s: send queue empty\n", __func__);
+ continue;
+ }
+ ap = get_appl(iif, CAPIMSG_APPID(skb->data));
+ if (!ap) {
+ /* could that happen? */
+ dev_warn(cs->dev, "%s: application %u vanished\n",
+ __func__, CAPIMSG_APPID(skb->data));
+ continue;
+ }
+ handler = lookup_capi_send_handler(CAPIMSG_CMD(skb->data));
+ if (!handler) {
+ /* should never happen */
+ dev_err(cs->dev, "%s: handler %x vanished\n",
+ __func__, CAPIMSG_CMD(skb->data));
+ continue;
+ }
+ handler(iif, ap, skb);
+ }
+
+ return CAPI_NOERROR;
+}
+
+/**
+ * gigaset_procinfo() - build single line description for controller
+ * @ctr: controller descriptor structure.
+ *
+ * Return value: pointer to generated string (null terminated)
+ */
+static char *gigaset_procinfo(struct capi_ctr *ctr)
+{
+ return ctr->name; /* ToDo: more? */
+}
+
+/**
+ * gigaset_ctr_read_proc() - build controller proc file entry
+ * @page: buffer of PAGE_SIZE bytes for receiving the entry.
+ * @start: unused.
+ * @off: unused.
+ * @count: unused.
+ * @eof: unused.
+ * @ctr: controller descriptor structure.
+ *
+ * Return value: length of generated entry
+ */
+static int gigaset_ctr_read_proc(char *page, char **start, off_t off,
+ int count, int *eof, struct capi_ctr *ctr)
+{
+ struct cardstate *cs = ctr->driverdata;
+ char *s;
+ int i;
+ int len = 0;
+ len += sprintf(page+len, "%-16s %s\n", "name", ctr->name);
+ len += sprintf(page+len, "%-16s %s %s\n", "dev",
+ dev_driver_string(cs->dev), dev_name(cs->dev));
+ len += sprintf(page+len, "%-16s %d\n", "id", cs->myid);
+ if (cs->gotfwver)
+ len += sprintf(page+len, "%-16s %d.%d.%d.%d\n", "firmware",
+ cs->fwver[0], cs->fwver[1], cs->fwver[2], cs->fwver[3]);
+ len += sprintf(page+len, "%-16s %d\n", "channels",
+ cs->channels);
+ len += sprintf(page+len, "%-16s %s\n", "onechannel",
+ cs->onechannel ? "yes" : "no");
+
+ switch (cs->mode) {
+ case M_UNKNOWN:
+ s = "unknown";
+ break;
+ case M_CONFIG:
+ s = "config";
+ break;
+ case M_UNIMODEM:
+ s = "Unimodem";
+ break;
+ case M_CID:
+ s = "CID";
+ break;
+ default:
+ s = "??";
+ }
+ len += sprintf(page+len, "%-16s %s\n", "mode", s);
+
+ switch (cs->mstate) {
+ case MS_UNINITIALIZED:
+ s = "uninitialized";
+ break;
+ case MS_INIT:
+ s = "init";
+ break;
+ case MS_LOCKED:
+ s = "locked";
+ break;
+ case MS_SHUTDOWN:
+ s = "shutdown";
+ break;
+ case MS_RECOVER:
+ s = "recover";
+ break;
+ case MS_READY:
+ s = "ready";
+ break;
+ default:
+ s = "??";
+ }
+ len += sprintf(page+len, "%-16s %s\n", "mstate", s);
+
+ len += sprintf(page+len, "%-16s %s\n", "running",
+ cs->running ? "yes" : "no");
+ len += sprintf(page+len, "%-16s %s\n", "connected",
+ cs->connected ? "yes" : "no");
+ len += sprintf(page+len, "%-16s %s\n", "isdn_up",
+ cs->isdn_up ? "yes" : "no");
+ len += sprintf(page+len, "%-16s %s\n", "cidmode",
+ cs->cidmode ? "yes" : "no");
+
+ for (i = 0; i < cs->channels; i++) {
+ len += sprintf(page+len, "[%d]%-13s %d\n", i, "corrupted",
+ cs->bcs[i].corrupted);
+ len += sprintf(page+len, "[%d]%-13s %d\n", i, "trans_down",
+ cs->bcs[i].trans_down);
+ len += sprintf(page+len, "[%d]%-13s %d\n", i, "trans_up",
+ cs->bcs[i].trans_up);
+ len += sprintf(page+len, "[%d]%-13s %d\n", i, "chstate",
+ cs->bcs[i].chstate);
+ switch (cs->bcs[i].proto2) {
+ case L2_BITSYNC:
+ s = "bitsync";
+ break;
+ case L2_HDLC:
+ s = "HDLC";
+ break;
+ case L2_VOICE:
+ s = "voice";
+ break;
+ default:
+ s = "??";
+ }
+ len += sprintf(page+len, "[%d]%-13s %s\n", i, "proto2", s);
+ }
+ return len;
+}
+
+
+static struct capi_driver capi_driver_gigaset = {
+ .name = "gigaset",
+ .revision = "1.0",
+};
+
+/**
+ * gigaset_isdn_register() - register to LL
+ * @cs: device descriptor structure.
+ * @isdnid: device name.
+ *
+ * Called by main module to register the device with the LL.
+ *
+ * Return value: 1 for success, 0 for failure
+ */
+int gigaset_isdn_register(struct cardstate *cs, const char *isdnid)
+{
+ struct gigaset_capi_ctr *iif;
+ int rc;
+
+ pr_info("Kernel CAPI interface\n");
+
+ iif = kmalloc(sizeof(*iif), GFP_KERNEL);
+ if (!iif) {
+ pr_err("%s: out of memory\n", __func__);
+ return 0;
+ }
+
+ /* register driver with CAPI (ToDo: what for?) */
+ register_capi_driver(&capi_driver_gigaset);
+
+ /* prepare controller structure */
+ iif->ctr.owner = THIS_MODULE;
+ iif->ctr.driverdata = cs;
+ strncpy(iif->ctr.name, isdnid, sizeof(iif->ctr.name));
+ iif->ctr.driver_name = "gigaset";
+ iif->ctr.load_firmware = gigaset_load_firmware;
+ iif->ctr.reset_ctr = gigaset_reset_ctr;
+ iif->ctr.register_appl = gigaset_register_appl;
+ iif->ctr.release_appl = gigaset_release_appl;
+ iif->ctr.send_message = gigaset_send_message;
+ iif->ctr.procinfo = gigaset_procinfo;
+ iif->ctr.ctr_read_proc = gigaset_ctr_read_proc;
+ INIT_LIST_HEAD(&iif->appls);
+ skb_queue_head_init(&iif->sendqueue);
+ atomic_set(&iif->sendqlen, 0);
+
+ /* register controller with CAPI */
+ rc = attach_capi_ctr(&iif->ctr);
+ if (rc) {
+ pr_err("attach_capi_ctr failed (%d)\n", rc);
+ unregister_capi_driver(&capi_driver_gigaset);
+ kfree(iif);
+ return 0;
+ }
+
+ cs->iif = iif;
+ cs->hw_hdr_len = CAPI_DATA_B3_REQ_LEN;
+ return 1;
+}
+
+/**
+ * gigaset_isdn_unregister() - unregister from LL
+ * @cs: device descriptor structure.
+ *
+ * Called by main module to unregister the device from the LL.
+ */
+void gigaset_isdn_unregister(struct cardstate *cs)
+{
+ struct gigaset_capi_ctr *iif = cs->iif;
+
+ detach_capi_ctr(&iif->ctr);
+ kfree(iif);
+ cs->iif = NULL;
+ unregister_capi_driver(&capi_driver_gigaset);
+}
diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c
index 33dcd8d72b7..82ed1cd14ff 100644
--- a/drivers/isdn/gigaset/common.c
+++ b/drivers/isdn/gigaset/common.c
@@ -108,7 +108,7 @@ int gigaset_enterconfigmode(struct cardstate *cs)
{
int i, r;
- cs->control_state = TIOCM_RTS; //FIXME
+ cs->control_state = TIOCM_RTS;
r = setflags(cs, TIOCM_DTR, 200);
if (r < 0)
@@ -132,10 +132,10 @@ int gigaset_enterconfigmode(struct cardstate *cs)
error:
dev_err(cs->dev, "error %d on setuartbits\n", -r);
- cs->control_state = TIOCM_RTS|TIOCM_DTR; // FIXME is this a good value?
+ cs->control_state = TIOCM_RTS|TIOCM_DTR;
cs->ops->set_modem_ctrl(cs, 0, TIOCM_RTS|TIOCM_DTR);
- return -1; //r
+ return -1;
}
static int test_timeout(struct at_state_t *at_state)
@@ -150,10 +150,9 @@ static int test_timeout(struct at_state_t *at_state)
}
if (!gigaset_add_event(at_state->cs, at_state, EV_TIMEOUT, NULL,
- at_state->timer_index, NULL)) {
- //FIXME what should we do?
- }
-
+ at_state->timer_index, NULL))
+ dev_err(at_state->cs->dev, "%s: out of memory\n",
+ __func__);
return 1;
}
@@ -207,6 +206,32 @@ int gigaset_get_channel(struct bc_state *bcs)
return 1;
}
+struct bc_state *gigaset_get_free_channel(struct cardstate *cs)
+{
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&cs->lock, flags);
+ if (!try_module_get(cs->driver->owner)) {
+ gig_dbg(DEBUG_ANY,
+ "could not get module for allocating channel");
+ spin_unlock_irqrestore(&cs->lock, flags);
+ return NULL;
+ }
+ for (i = 0; i < cs->channels; ++i)
+ if (!cs->bcs[i].use_count) {
+ ++cs->bcs[i].use_count;
+ cs->bcs[i].busy = 1;
+ spin_unlock_irqrestore(&cs->lock, flags);
+ gig_dbg(DEBUG_ANY, "allocated channel %d", i);
+ return cs->bcs + i;
+ }
+ module_put(cs->driver->owner);
+ spin_unlock_irqrestore(&cs->lock, flags);
+ gig_dbg(DEBUG_ANY, "no free channel");
+ return NULL;
+}
+
void gigaset_free_channel(struct bc_state *bcs)
{
unsigned long flags;
@@ -367,16 +392,15 @@ static void gigaset_freebcs(struct bc_state *bcs)
int i;
gig_dbg(DEBUG_INIT, "freeing bcs[%d]->hw", bcs->channel);
- if (!bcs->cs->ops->freebcshw(bcs)) {
+ if (!bcs->cs->ops->freebcshw(bcs))
gig_dbg(DEBUG_INIT, "failed");
- }
gig_dbg(DEBUG_INIT, "clearing bcs[%d]->at_state", bcs->channel);
clear_at_state(&bcs->at_state);
gig_dbg(DEBUG_INIT, "freeing bcs[%d]->skb", bcs->channel);
+ dev_kfree_skb(bcs->skb);
+ bcs->skb = NULL;
- if (bcs->skb)
- dev_kfree_skb(bcs->skb);
for (i = 0; i < AT_NUM; ++i) {
kfree(bcs->commands[i]);
bcs->commands[i] = NULL;
@@ -463,6 +487,12 @@ void gigaset_freecs(struct cardstate *cs)
switch (cs->cs_init) {
default:
+ /* clear B channel structures */
+ for (i = 0; i < cs->channels; ++i) {
+ gig_dbg(DEBUG_INIT, "clearing bcs[%d]", i);
+ gigaset_freebcs(cs->bcs + i);
+ }
+
/* clear device sysfs */
gigaset_free_dev_sysfs(cs);
@@ -471,28 +501,20 @@ void gigaset_freecs(struct cardstate *cs)
gig_dbg(DEBUG_INIT, "clearing hw");
cs->ops->freecshw(cs);
- //FIXME cmdbuf
-
/* fall through */
case 2: /* error in initcshw */
/* Deregister from LL */
make_invalid(cs, VALID_ID);
- gig_dbg(DEBUG_INIT, "clearing iif");
- gigaset_i4l_cmd(cs, ISDN_STAT_UNLOAD);
+ gigaset_isdn_unregister(cs);
/* fall through */
- case 1: /* error when regestering to LL */
+ case 1: /* error when registering to LL */
gig_dbg(DEBUG_INIT, "clearing at_state");
clear_at_state(&cs->at_state);
dealloc_at_states(cs);
/* fall through */
- case 0: /* error in one call to initbcs */
- for (i = 0; i < cs->channels; ++i) {
- gig_dbg(DEBUG_INIT, "clearing bcs[%d]", i);
- gigaset_freebcs(cs->bcs + i);
- }
-
+ case 0: /* error in basic setup */
clear_events(cs);
gig_dbg(DEBUG_INIT, "freeing inbuf");
kfree(cs->inbuf);
@@ -534,16 +556,13 @@ void gigaset_at_init(struct at_state_t *at_state, struct bc_state *bcs,
}
-static void gigaset_inbuf_init(struct inbuf_t *inbuf, struct bc_state *bcs,
- struct cardstate *cs, int inputstate)
+static void gigaset_inbuf_init(struct inbuf_t *inbuf, struct cardstate *cs)
/* inbuf->read must be allocated before! */
{
inbuf->head = 0;
inbuf->tail = 0;
inbuf->cs = cs;
- inbuf->bcs = bcs; /*base driver: NULL*/
- inbuf->rcvbuf = NULL;
- inbuf->inputstate = inputstate;
+ inbuf->inputstate = INS_command;
}
/**
@@ -599,7 +618,7 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
{
int i;
- bcs->tx_skb = NULL; //FIXME -> hw part
+ bcs->tx_skb = NULL;
skb_queue_head_init(&bcs->squeue);
@@ -618,13 +637,13 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
bcs->fcs = PPP_INITFCS;
bcs->inputstate = 0;
if (cs->ignoreframes) {
- bcs->inputstate |= INS_skip_frame;
bcs->skb = NULL;
- } else if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
- skb_reserve(bcs->skb, HW_HDR_LEN);
- else {
- pr_err("out of memory\n");
- bcs->inputstate |= INS_skip_frame;
+ } else {
+ bcs->skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len);
+ if (bcs->skb != NULL)
+ skb_reserve(bcs->skb, cs->hw_hdr_len);
+ else
+ pr_err("out of memory\n");
}
bcs->channel = channel;
@@ -645,8 +664,8 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
gig_dbg(DEBUG_INIT, " failed");
gig_dbg(DEBUG_INIT, " freeing bcs[%d]->skb", channel);
- if (bcs->skb)
- dev_kfree_skb(bcs->skb);
+ dev_kfree_skb(bcs->skb);
+ bcs->skb = NULL;
return NULL;
}
@@ -673,12 +692,13 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
int onechannel, int ignoreframes,
int cidmode, const char *modulename)
{
- struct cardstate *cs = NULL;
+ struct cardstate *cs;
unsigned long flags;
int i;
gig_dbg(DEBUG_INIT, "allocating cs");
- if (!(cs = alloc_cs(drv))) {
+ cs = alloc_cs(drv);
+ if (!cs) {
pr_err("maximum number of devices exceeded\n");
return NULL;
}
@@ -707,7 +727,7 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
cs->ev_tail = 0;
cs->ev_head = 0;
- tasklet_init(&cs->event_tasklet, &gigaset_handle_event,
+ tasklet_init(&cs->event_tasklet, gigaset_handle_event,
(unsigned long) cs);
cs->commands_pending = 0;
cs->cur_at_seq = 0;
@@ -726,14 +746,6 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
cs->mode = M_UNKNOWN;
cs->mstate = MS_UNINITIALIZED;
- for (i = 0; i < channels; ++i) {
- gig_dbg(DEBUG_INIT, "setting up bcs[%d].read", i);
- if (!gigaset_initbcs(cs->bcs + i, cs, i)) {
- pr_err("could not allocate channel %d data\n", i);
- goto error;
- }
- }
-
++cs->cs_init;
gig_dbg(DEBUG_INIT, "setting up at_state");
@@ -743,10 +755,7 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
cs->cbytes = 0;
gig_dbg(DEBUG_INIT, "setting up inbuf");
- if (onechannel) { //FIXME distinction necessary?
- gigaset_inbuf_init(cs->inbuf, cs->bcs, cs, INS_command);
- } else
- gigaset_inbuf_init(cs->inbuf, NULL, cs, INS_command);
+ gigaset_inbuf_init(cs->inbuf, cs);
cs->connected = 0;
cs->isdn_up = 0;
@@ -758,7 +767,7 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
cs->cmdbytes = 0;
gig_dbg(DEBUG_INIT, "setting up iif");
- if (!gigaset_register_to_LL(cs, modulename)) {
+ if (!gigaset_isdn_register(cs, modulename)) {
pr_err("error registering ISDN device\n");
goto error;
}
@@ -777,6 +786,15 @@ struct cardstate *gigaset_initcs(struct gigaset_driver *drv, int channels,
/* set up device sysfs */
gigaset_init_dev_sysfs(cs);
+ /* set up channel data structures */
+ for (i = 0; i < channels; ++i) {
+ gig_dbg(DEBUG_INIT, "setting up bcs[%d]", i);
+ if (!gigaset_initbcs(cs->bcs + i, cs, i)) {
+ pr_err("could not allocate channel %d data\n", i);
+ goto error;
+ }
+ }
+
spin_lock_irqsave(&cs->lock, flags);
cs->running = 1;
spin_unlock_irqrestore(&cs->lock, flags);
@@ -824,9 +842,10 @@ void gigaset_bcs_reinit(struct bc_state *bcs)
bcs->chstate = 0;
bcs->ignore = cs->ignoreframes;
- if (bcs->ignore)
- bcs->inputstate |= INS_skip_frame;
-
+ if (bcs->ignore) {
+ dev_kfree_skb(bcs->skb);
+ bcs->skb = NULL;
+ }
cs->ops->reinitbcshw(bcs);
}
@@ -847,8 +866,6 @@ static void cleanup_cs(struct cardstate *cs)
free_strings(&cs->at_state);
gigaset_at_init(&cs->at_state, NULL, cs, 0);
- kfree(cs->inbuf->rcvbuf);
- cs->inbuf->rcvbuf = NULL;
cs->inbuf->inputstate = INS_command;
cs->inbuf->head = 0;
cs->inbuf->tail = 0;
@@ -911,15 +928,13 @@ int gigaset_start(struct cardstate *cs)
cs->ops->baud_rate(cs, B115200);
cs->ops->set_line_ctrl(cs, CS8);
cs->control_state = TIOCM_DTR|TIOCM_RTS;
- } else {
- //FIXME use some saved values?
}
cs->waiting = 1;
if (!gigaset_add_event(cs, &cs->at_state, EV_START, NULL, 0, NULL)) {
cs->waiting = 0;
- //FIXME what should we do?
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
goto error;
}
@@ -959,7 +974,7 @@ int gigaset_shutdown(struct cardstate *cs)
cs->waiting = 1;
if (!gigaset_add_event(cs, &cs->at_state, EV_SHUTDOWN, NULL, 0, NULL)) {
- //FIXME what should we do?
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
goto exit;
}
@@ -990,7 +1005,7 @@ void gigaset_stop(struct cardstate *cs)
cs->waiting = 1;
if (!gigaset_add_event(cs, &cs->at_state, EV_STOP, NULL, 0, NULL)) {
- //FIXME what should we do?
+ dev_err(cs->dev, "%s: out of memory\n", __func__);
goto exit;
}
diff --git a/drivers/isdn/gigaset/dummyll.c b/drivers/isdn/gigaset/dummyll.c
new file mode 100644
index 00000000000..5b27c996af6
--- /dev/null
+++ b/drivers/isdn/gigaset/dummyll.c
@@ -0,0 +1,68 @@
+/*
+ * Dummy LL interface for the Gigaset driver
+ *
+ * Copyright (c) 2009 by Tilman Schmidt <tilman@imap.cc>.
+ *
+ * =====================================================================
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ * =====================================================================
+ */
+
+#include "gigaset.h"
+
+void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb)
+{
+}
+EXPORT_SYMBOL_GPL(gigaset_skb_sent);
+
+void gigaset_skb_rcvd(struct bc_state *bcs, struct sk_buff *skb)
+{
+}
+EXPORT_SYMBOL_GPL(gigaset_skb_rcvd);
+
+void gigaset_isdn_rcv_err(struct bc_state *bcs)
+{
+}
+EXPORT_SYMBOL_GPL(gigaset_isdn_rcv_err);
+
+int gigaset_isdn_icall(struct at_state_t *at_state)
+{
+ return ICALL_IGNORE;
+}
+
+void gigaset_isdn_connD(struct bc_state *bcs)
+{
+}
+
+void gigaset_isdn_hupD(struct bc_state *bcs)
+{
+}
+
+void gigaset_isdn_connB(struct bc_state *bcs)
+{
+}
+
+void gigaset_isdn_hupB(struct bc_state *bcs)
+{
+}
+
+void gigaset_isdn_start(struct cardstate *cs)
+{
+}
+
+void gigaset_isdn_stop(struct cardstate *cs)
+{
+}
+
+int gigaset_isdn_register(struct cardstate *cs, const char *isdnid)
+{
+ pr_info("no ISDN subsystem interface\n");
+ return 1;
+}
+
+void gigaset_isdn_unregister(struct cardstate *cs)
+{
+}
diff --git a/drivers/isdn/gigaset/ev-layer.c b/drivers/isdn/gigaset/ev-layer.c
index cc768caa38f..ddeb0456d20 100644
--- a/drivers/isdn/gigaset/ev-layer.c
+++ b/drivers/isdn/gigaset/ev-layer.c
@@ -40,8 +40,8 @@
/* Possible ASCII responses */
#define RSP_OK 0
-//#define RSP_BUSY 1
-//#define RSP_CONNECT 2
+#define RSP_BUSY 1
+#define RSP_CONNECT 2
#define RSP_ZGCI 3
#define RSP_RING 4
#define RSP_ZAOC 5
@@ -68,7 +68,6 @@
#define RSP_ZHLC (RSP_STR + STR_ZHLC)
#define RSP_ERROR -1 /* ERROR */
#define RSP_WRONG_CID -2 /* unknown cid in cmd */
-//#define RSP_EMPTY -3
#define RSP_UNKNOWN -4 /* unknown response */
#define RSP_FAIL -5 /* internal error */
#define RSP_INVAL -6 /* invalid response */
@@ -76,9 +75,9 @@
#define RSP_NONE -19
#define RSP_STRING -20
#define RSP_NULL -21
-//#define RSP_RETRYFAIL -22
-//#define RSP_RETRY -23
-//#define RSP_SKIP -24
+#define RSP_RETRYFAIL -22
+#define RSP_RETRY -23
+#define RSP_SKIP -24
#define RSP_INIT -27
#define RSP_ANY -26
#define RSP_LAST -28
@@ -127,7 +126,6 @@
#define ACT_NOTIFY_BC_UP 39
#define ACT_DIAL 40
#define ACT_ACCEPT 41
-#define ACT_PROTO_L2 42
#define ACT_HUP 43
#define ACT_IF_LOCK 44
#define ACT_START 45
@@ -159,229 +157,229 @@
#define SEQ_UMMODE 11
-// 100: init, 200: dle0, 250:dle1, 300: get cid (dial), 350: "hup" (no cid), 400: hup, 500: reset, 600: dial, 700: ring
+/* 100: init, 200: dle0, 250:dle1, 300: get cid (dial), 350: "hup" (no cid),
+ * 400: hup, 500: reset, 600: dial, 700: ring */
struct reply_t gigaset_tab_nocid[] =
{
- /* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout, action, command */
-
- /* initialize device, set cid mode if possible */
- //{RSP_INIT, -1, -1,100, 900, 0, {ACT_TEST}},
- //{RSP_ERROR, 900,900, -1, 0, 0, {ACT_FAILINIT}},
- //{RSP_OK, 900,900, -1, 100, INIT_TIMEOUT,
- // {ACT_TIMEOUT}},
-
- {RSP_INIT, -1, -1,SEQ_INIT, 100, INIT_TIMEOUT,
- {ACT_TIMEOUT}}, /* wait until device is ready */
-
- {EV_TIMEOUT, 100,100, -1, 101, 3, {0}, "Z\r"}, /* device in transparent mode? try to initialize it. */
- {RSP_OK, 101,103, -1, 120, 5, {ACT_GETSTRING}, "+GMR\r"}, /* get version */
-
- {EV_TIMEOUT, 101,101, -1, 102, 5, {0}, "Z\r"}, /* timeout => try once again. */
- {RSP_ERROR, 101,101, -1, 102, 5, {0}, "Z\r"}, /* error => try once again. */
-
- {EV_TIMEOUT, 102,102, -1, 108, 5, {ACT_SETDLE1}, "^SDLE=0\r"}, /* timeout => try again in DLE mode. */
- {RSP_OK, 108,108, -1, 104,-1},
- {RSP_ZDLE, 104,104, 0, 103, 5, {0}, "Z\r"},
- {EV_TIMEOUT, 104,104, -1, 0, 0, {ACT_FAILINIT}},
- {RSP_ERROR, 108,108, -1, 0, 0, {ACT_FAILINIT}},
-
- {EV_TIMEOUT, 108,108, -1, 105, 2, {ACT_SETDLE0,
- ACT_HUPMODEM,
- ACT_TIMEOUT}}, /* still timeout => connection in unimodem mode? */
- {EV_TIMEOUT, 105,105, -1, 103, 5, {0}, "Z\r"},
-
- {RSP_ERROR, 102,102, -1, 107, 5, {0}, "^GETPRE\r"}, /* ERROR on ATZ => maybe in config mode? */
- {RSP_OK, 107,107, -1, 0, 0, {ACT_CONFIGMODE}},
- {RSP_ERROR, 107,107, -1, 0, 0, {ACT_FAILINIT}},
- {EV_TIMEOUT, 107,107, -1, 0, 0, {ACT_FAILINIT}},
-
- {RSP_ERROR, 103,103, -1, 0, 0, {ACT_FAILINIT}},
- {EV_TIMEOUT, 103,103, -1, 0, 0, {ACT_FAILINIT}},
-
- {RSP_STRING, 120,120, -1, 121,-1, {ACT_SETVER}},
-
- {EV_TIMEOUT, 120,121, -1, 0, 0, {ACT_FAILVER, ACT_INIT}},
- {RSP_ERROR, 120,121, -1, 0, 0, {ACT_FAILVER, ACT_INIT}},
- {RSP_OK, 121,121, -1, 0, 0, {ACT_GOTVER, ACT_INIT}},
-
- /* leave dle mode */
- {RSP_INIT, 0, 0,SEQ_DLE0, 201, 5, {0}, "^SDLE=0\r"},
- {RSP_OK, 201,201, -1, 202,-1},
- {RSP_ZDLE, 202,202, 0, 0, 0, {ACT_DLE0}},
- {RSP_NODEV, 200,249, -1, 0, 0, {ACT_FAKEDLE0}},
- {RSP_ERROR, 200,249, -1, 0, 0, {ACT_FAILDLE0}},
- {EV_TIMEOUT, 200,249, -1, 0, 0, {ACT_FAILDLE0}},
-
- /* enter dle mode */
- {RSP_INIT, 0, 0,SEQ_DLE1, 251, 5, {0}, "^SDLE=1\r"},
- {RSP_OK, 251,251, -1, 252,-1},
- {RSP_ZDLE, 252,252, 1, 0, 0, {ACT_DLE1}},
- {RSP_ERROR, 250,299, -1, 0, 0, {ACT_FAILDLE1}},
- {EV_TIMEOUT, 250,299, -1, 0, 0, {ACT_FAILDLE1}},
-
- /* incoming call */
- {RSP_RING, -1, -1, -1, -1,-1, {ACT_RING}},
-
- /* get cid */
- //{RSP_INIT, 0, 0,300, 901, 0, {ACT_TEST}},
- //{RSP_ERROR, 901,901, -1, 0, 0, {ACT_FAILCID}},
- //{RSP_OK, 901,901, -1, 301, 5, {0}, "^SGCI?\r"},
-
- {RSP_INIT, 0, 0,SEQ_CID, 301, 5, {0}, "^SGCI?\r"},
- {RSP_OK, 301,301, -1, 302,-1},
- {RSP_ZGCI, 302,302, -1, 0, 0, {ACT_CID}},
- {RSP_ERROR, 301,349, -1, 0, 0, {ACT_FAILCID}},
- {EV_TIMEOUT, 301,349, -1, 0, 0, {ACT_FAILCID}},
-
- /* enter cid mode */
- {RSP_INIT, 0, 0,SEQ_CIDMODE, 150, 5, {0}, "^SGCI=1\r"},
- {RSP_OK, 150,150, -1, 0, 0, {ACT_CMODESET}},
- {RSP_ERROR, 150,150, -1, 0, 0, {ACT_FAILCMODE}},
- {EV_TIMEOUT, 150,150, -1, 0, 0, {ACT_FAILCMODE}},
-
- /* leave cid mode */
- //{RSP_INIT, 0, 0,SEQ_UMMODE, 160, 5, {0}, "^SGCI=0\r"},
- {RSP_INIT, 0, 0,SEQ_UMMODE, 160, 5, {0}, "Z\r"},
- {RSP_OK, 160,160, -1, 0, 0, {ACT_UMODESET}},
- {RSP_ERROR, 160,160, -1, 0, 0, {ACT_FAILUMODE}},
- {EV_TIMEOUT, 160,160, -1, 0, 0, {ACT_FAILUMODE}},
-
- /* abort getting cid */
- {RSP_INIT, 0, 0,SEQ_NOCID, 0, 0, {ACT_ABORTCID}},
-
- /* reset */
- {RSP_INIT, 0, 0,SEQ_SHUTDOWN, 504, 5, {0}, "Z\r"},
- {RSP_OK, 504,504, -1, 0, 0, {ACT_SDOWN}},
- {RSP_ERROR, 501,599, -1, 0, 0, {ACT_FAILSDOWN}},
- {EV_TIMEOUT, 501,599, -1, 0, 0, {ACT_FAILSDOWN}},
- {RSP_NODEV, 501,599, -1, 0, 0, {ACT_FAKESDOWN}},
-
- {EV_PROC_CIDMODE,-1, -1, -1, -1,-1, {ACT_PROC_CIDMODE}}, //FIXME
- {EV_IF_LOCK, -1, -1, -1, -1,-1, {ACT_IF_LOCK}}, //FIXME
- {EV_IF_VER, -1, -1, -1, -1,-1, {ACT_IF_VER}}, //FIXME
- {EV_START, -1, -1, -1, -1,-1, {ACT_START}}, //FIXME
- {EV_STOP, -1, -1, -1, -1,-1, {ACT_STOP}}, //FIXME
- {EV_SHUTDOWN, -1, -1, -1, -1,-1, {ACT_SHUTDOWN}}, //FIXME
-
- /* misc. */
- {RSP_ERROR, -1, -1, -1, -1, -1, {ACT_ERROR} },
- {RSP_EMPTY, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
- {RSP_ZCFGT, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
- {RSP_ZCFG, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
- {RSP_ZLOG, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
- {RSP_ZMWI, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
- {RSP_ZABINFO, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
- {RSP_ZSMLSTCHG,-1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
-
- {RSP_ZCAU, -1, -1, -1, -1,-1, {ACT_ZCAU}},
- {RSP_NONE, -1, -1, -1, -1,-1, {ACT_DEBUG}},
- {RSP_ANY, -1, -1, -1, -1,-1, {ACT_WARN}},
- {RSP_LAST}
+/* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout,
+ * action, command */
+
+/* initialize device, set cid mode if possible */
+{RSP_INIT, -1, -1, SEQ_INIT, 100, 1, {ACT_TIMEOUT} },
+
+{EV_TIMEOUT, 100, 100, -1, 101, 3, {0}, "Z\r"},
+{RSP_OK, 101, 103, -1, 120, 5, {ACT_GETSTRING},
+ "+GMR\r"},
+
+{EV_TIMEOUT, 101, 101, -1, 102, 5, {0}, "Z\r"},
+{RSP_ERROR, 101, 101, -1, 102, 5, {0}, "Z\r"},
+
+{EV_TIMEOUT, 102, 102, -1, 108, 5, {ACT_SETDLE1},
+ "^SDLE=0\r"},
+{RSP_OK, 108, 108, -1, 104, -1},
+{RSP_ZDLE, 104, 104, 0, 103, 5, {0}, "Z\r"},
+{EV_TIMEOUT, 104, 104, -1, 0, 0, {ACT_FAILINIT} },
+{RSP_ERROR, 108, 108, -1, 0, 0, {ACT_FAILINIT} },
+
+{EV_TIMEOUT, 108, 108, -1, 105, 2, {ACT_SETDLE0,
+ ACT_HUPMODEM,
+ ACT_TIMEOUT} },
+{EV_TIMEOUT, 105, 105, -1, 103, 5, {0}, "Z\r"},
+
+{RSP_ERROR, 102, 102, -1, 107, 5, {0}, "^GETPRE\r"},
+{RSP_OK, 107, 107, -1, 0, 0, {ACT_CONFIGMODE} },
+{RSP_ERROR, 107, 107, -1, 0, 0, {ACT_FAILINIT} },
+{EV_TIMEOUT, 107, 107, -1, 0, 0, {ACT_FAILINIT} },
+
+{RSP_ERROR, 103, 103, -1, 0, 0, {ACT_FAILINIT} },
+{EV_TIMEOUT, 103, 103, -1, 0, 0, {ACT_FAILINIT} },
+
+{RSP_STRING, 120, 120, -1, 121, -1, {ACT_SETVER} },
+
+{EV_TIMEOUT, 120, 121, -1, 0, 0, {ACT_FAILVER,
+ ACT_INIT} },
+{RSP_ERROR, 120, 121, -1, 0, 0, {ACT_FAILVER,
+ ACT_INIT} },
+{RSP_OK, 121, 121, -1, 0, 0, {ACT_GOTVER,
+ ACT_INIT} },
+
+/* leave dle mode */
+{RSP_INIT, 0, 0, SEQ_DLE0, 201, 5, {0}, "^SDLE=0\r"},
+{RSP_OK, 201, 201, -1, 202, -1},
+{RSP_ZDLE, 202, 202, 0, 0, 0, {ACT_DLE0} },
+{RSP_NODEV, 200, 249, -1, 0, 0, {ACT_FAKEDLE0} },
+{RSP_ERROR, 200, 249, -1, 0, 0, {ACT_FAILDLE0} },
+{EV_TIMEOUT, 200, 249, -1, 0, 0, {ACT_FAILDLE0} },
+
+/* enter dle mode */
+{RSP_INIT, 0, 0, SEQ_DLE1, 251, 5, {0}, "^SDLE=1\r"},
+{RSP_OK, 251, 251, -1, 252, -1},
+{RSP_ZDLE, 252, 252, 1, 0, 0, {ACT_DLE1} },
+{RSP_ERROR, 250, 299, -1, 0, 0, {ACT_FAILDLE1} },
+{EV_TIMEOUT, 250, 299, -1, 0, 0, {ACT_FAILDLE1} },
+
+/* incoming call */
+{RSP_RING, -1, -1, -1, -1, -1, {ACT_RING} },
+
+/* get cid */
+{RSP_INIT, 0, 0, SEQ_CID, 301, 5, {0}, "^SGCI?\r"},
+{RSP_OK, 301, 301, -1, 302, -1},
+{RSP_ZGCI, 302, 302, -1, 0, 0, {ACT_CID} },
+{RSP_ERROR, 301, 349, -1, 0, 0, {ACT_FAILCID} },
+{EV_TIMEOUT, 301, 349, -1, 0, 0, {ACT_FAILCID} },
+
+/* enter cid mode */
+{RSP_INIT, 0, 0, SEQ_CIDMODE, 150, 5, {0}, "^SGCI=1\r"},
+{RSP_OK, 150, 150, -1, 0, 0, {ACT_CMODESET} },
+{RSP_ERROR, 150, 150, -1, 0, 0, {ACT_FAILCMODE} },
+{EV_TIMEOUT, 150, 150, -1, 0, 0, {ACT_FAILCMODE} },
+
+/* leave cid mode */
+{RSP_INIT, 0, 0, SEQ_UMMODE, 160, 5, {0}, "Z\r"},
+{RSP_OK, 160, 160, -1, 0, 0, {ACT_UMODESET} },
+{RSP_ERROR, 160, 160, -1, 0, 0, {ACT_FAILUMODE} },
+{EV_TIMEOUT, 160, 160, -1, 0, 0, {ACT_FAILUMODE} },
+
+/* abort getting cid */
+{RSP_INIT, 0, 0, SEQ_NOCID, 0, 0, {ACT_ABORTCID} },
+
+/* reset */
+{RSP_INIT, 0, 0, SEQ_SHUTDOWN, 504, 5, {0}, "Z\r"},
+{RSP_OK, 504, 504, -1, 0, 0, {ACT_SDOWN} },
+{RSP_ERROR, 501, 599, -1, 0, 0, {ACT_FAILSDOWN} },
+{EV_TIMEOUT, 501, 599, -1, 0, 0, {ACT_FAILSDOWN} },
+{RSP_NODEV, 501, 599, -1, 0, 0, {ACT_FAKESDOWN} },
+
+{EV_PROC_CIDMODE, -1, -1, -1, -1, -1, {ACT_PROC_CIDMODE} },
+{EV_IF_LOCK, -1, -1, -1, -1, -1, {ACT_IF_LOCK} },
+{EV_IF_VER, -1, -1, -1, -1, -1, {ACT_IF_VER} },
+{EV_START, -1, -1, -1, -1, -1, {ACT_START} },
+{EV_STOP, -1, -1, -1, -1, -1, {ACT_STOP} },
+{EV_SHUTDOWN, -1, -1, -1, -1, -1, {ACT_SHUTDOWN} },
+
+/* misc. */
+{RSP_ERROR, -1, -1, -1, -1, -1, {ACT_ERROR} },
+{RSP_ZCFGT, -1, -1, -1, -1, -1, {ACT_DEBUG} },
+{RSP_ZCFG, -1, -1, -1, -1, -1, {ACT_DEBUG} },
+{RSP_ZLOG, -1, -1, -1, -1, -1, {ACT_DEBUG} },
+{RSP_ZMWI, -1, -1, -1, -1, -1, {ACT_DEBUG} },
+{RSP_ZABINFO, -1, -1, -1, -1, -1, {ACT_DEBUG} },
+{RSP_ZSMLSTCHG, -1, -1, -1, -1, -1, {ACT_DEBUG} },
+
+{RSP_ZCAU, -1, -1, -1, -1, -1, {ACT_ZCAU} },
+{RSP_NONE, -1, -1, -1, -1, -1, {ACT_DEBUG} },
+{RSP_ANY, -1, -1, -1, -1, -1, {ACT_WARN} },
+{RSP_LAST}
};
-// 600: start dialing, 650: dial in progress, 800: connection is up, 700: ring, 400: hup, 750: accepted icall
+/* 600: start dialing, 650: dial in progress, 800: connection is up, 700: ring,
+ * 400: hup, 750: accepted icall */
struct reply_t gigaset_tab_cid[] =
{
- /* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout, action, command */
-
- /* dial */
- {EV_DIAL, -1, -1, -1, -1,-1, {ACT_DIAL}}, //FIXME
- {RSP_INIT, 0, 0,SEQ_DIAL, 601, 5, {ACT_CMD+AT_BC}},
- {RSP_OK, 601,601, -1, 602, 5, {ACT_CMD+AT_HLC}},
- {RSP_NULL, 602,602, -1, 603, 5, {ACT_CMD+AT_PROTO}},
- {RSP_OK, 602,602, -1, 603, 5, {ACT_CMD+AT_PROTO}},
- {RSP_OK, 603,603, -1, 604, 5, {ACT_CMD+AT_TYPE}},
- {RSP_OK, 604,604, -1, 605, 5, {ACT_CMD+AT_MSN}},
- {RSP_OK, 605,605, -1, 606, 5, {ACT_CMD+AT_ISO}},
- {RSP_NULL, 605,605, -1, 606, 5, {ACT_CMD+AT_ISO}},
- {RSP_OK, 606,606, -1, 607, 5, {0}, "+VLS=17\r"},
- {RSP_OK, 607,607, -1, 608,-1},
- {RSP_ZSAU, 608,608,ZSAU_PROCEEDING, 609, 5, {ACT_CMD+AT_DIAL}},
- {RSP_OK, 609,609, -1, 650, 0, {ACT_DIALING}},
-
- {RSP_ERROR, 601,609, -1, 0, 0, {ACT_ABORTDIAL}},
- {EV_TIMEOUT, 601,609, -1, 0, 0, {ACT_ABORTDIAL}},
-
- /* optional dialing responses */
- {EV_BC_OPEN, 650,650, -1, 651,-1},
- {RSP_ZVLS, 608,651, 17, -1,-1, {ACT_DEBUG}},
- {RSP_ZCTP, 609,651, -1, -1,-1, {ACT_DEBUG}},
- {RSP_ZCPN, 609,651, -1, -1,-1, {ACT_DEBUG}},
- {RSP_ZSAU, 650,651,ZSAU_CALL_DELIVERED, -1,-1, {ACT_DEBUG}},
-
- /* connect */
- {RSP_ZSAU, 650,650,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT}},
- {RSP_ZSAU, 651,651,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT,
- ACT_NOTIFY_BC_UP}},
- {RSP_ZSAU, 750,750,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT}},
- {RSP_ZSAU, 751,751,ZSAU_ACTIVE, 800,-1, {ACT_CONNECT,
- ACT_NOTIFY_BC_UP}},
- {EV_BC_OPEN, 800,800, -1, 800,-1, {ACT_NOTIFY_BC_UP}},
-
- /* remote hangup */
- {RSP_ZSAU, 650,651,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEREJECT}},
- {RSP_ZSAU, 750,751,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP}},
- {RSP_ZSAU, 800,800,ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP}},
-
- /* hangup */
- {EV_HUP, -1, -1, -1, -1,-1, {ACT_HUP}}, //FIXME
- {RSP_INIT, -1, -1,SEQ_HUP, 401, 5, {0}, "+VLS=0\r"}, /* hang up */ //-1,-1?
- {RSP_OK, 401,401, -1, 402, 5},
- {RSP_ZVLS, 402,402, 0, 403, 5},
- {RSP_ZSAU, 403, 403, ZSAU_DISCONNECT_REQ, -1, -1, {ACT_DEBUG} },
- {RSP_ZSAU, 403, 403, ZSAU_NULL, 0, 0, {ACT_DISCONNECT} },
- {RSP_NODEV, 401, 403, -1, 0, 0, {ACT_FAKEHUP} },
- {RSP_ERROR, 401,401, -1, 0, 0, {ACT_ABORTHUP}},
- {EV_TIMEOUT, 401,403, -1, 0, 0, {ACT_ABORTHUP}},
-
- {EV_BC_CLOSED, 0, 0, -1, 0,-1, {ACT_NOTIFY_BC_DOWN}}, //FIXME new constate + timeout
-
- /* ring */
- {RSP_ZBC, 700,700, -1, -1,-1, {0}},
- {RSP_ZHLC, 700,700, -1, -1,-1, {0}},
- {RSP_NMBR, 700,700, -1, -1,-1, {0}},
- {RSP_ZCPN, 700,700, -1, -1,-1, {0}},
- {RSP_ZCTP, 700,700, -1, -1,-1, {0}},
- {EV_TIMEOUT, 700,700, -1, 720,720, {ACT_ICALL}},
- {EV_BC_CLOSED,720,720, -1, 0,-1, {ACT_NOTIFY_BC_DOWN}},
-
- /*accept icall*/
- {EV_ACCEPT, -1, -1, -1, -1,-1, {ACT_ACCEPT}}, //FIXME
- {RSP_INIT, 720,720,SEQ_ACCEPT, 721, 5, {ACT_CMD+AT_PROTO}},
- {RSP_OK, 721,721, -1, 722, 5, {ACT_CMD+AT_ISO}},
- {RSP_OK, 722,722, -1, 723, 5, {0}, "+VLS=17\r"}, /* set "Endgeraetemodus" */
- {RSP_OK, 723,723, -1, 724, 5, {0}},
- {RSP_ZVLS, 724,724, 17, 750,50, {ACT_ACCEPTED}},
- {RSP_ERROR, 721,729, -1, 0, 0, {ACT_ABORTACCEPT}},
- {EV_TIMEOUT, 721,729, -1, 0, 0, {ACT_ABORTACCEPT}},
- {RSP_ZSAU, 700,729,ZSAU_NULL, 0, 0, {ACT_ABORTACCEPT}},
- {RSP_ZSAU, 700,729,ZSAU_ACTIVE, 0, 0, {ACT_ABORTACCEPT}},
- {RSP_ZSAU, 700,729,ZSAU_DISCONNECT_IND, 0, 0, {ACT_ABORTACCEPT}},
-
- {EV_BC_OPEN, 750,750, -1, 751,-1},
- {EV_TIMEOUT, 750,751, -1, 0, 0, {ACT_CONNTIMEOUT}},
-
- /* B channel closed (general case) */
- {EV_BC_CLOSED, -1, -1, -1, -1,-1, {ACT_NOTIFY_BC_DOWN}}, //FIXME
-
- /* misc. */
- {EV_PROTO_L2, -1, -1, -1, -1,-1, {ACT_PROTO_L2}}, //FIXME
-
- {RSP_ZCON, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
- {RSP_ZCCR, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
- {RSP_ZAOC, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
- {RSP_ZCSTR, -1, -1, -1, -1,-1, {ACT_DEBUG}}, //FIXME
-
- {RSP_ZCAU, -1, -1, -1, -1,-1, {ACT_ZCAU}},
- {RSP_NONE, -1, -1, -1, -1,-1, {ACT_DEBUG}},
- {RSP_ANY, -1, -1, -1, -1,-1, {ACT_WARN}},
- {RSP_LAST}
+/* resp_code, min_ConState, max_ConState, parameter, new_ConState, timeout,
+ * action, command */
+
+/* dial */
+{EV_DIAL, -1, -1, -1, -1, -1, {ACT_DIAL} },
+{RSP_INIT, 0, 0, SEQ_DIAL, 601, 5, {ACT_CMD+AT_BC} },
+{RSP_OK, 601, 601, -1, 602, 5, {ACT_CMD+AT_HLC} },
+{RSP_NULL, 602, 602, -1, 603, 5, {ACT_CMD+AT_PROTO} },
+{RSP_OK, 602, 602, -1, 603, 5, {ACT_CMD+AT_PROTO} },
+{RSP_OK, 603, 603, -1, 604, 5, {ACT_CMD+AT_TYPE} },
+{RSP_OK, 604, 604, -1, 605, 5, {ACT_CMD+AT_MSN} },
+{RSP_NULL, 605, 605, -1, 606, 5, {ACT_CMD+AT_CLIP} },
+{RSP_OK, 605, 605, -1, 606, 5, {ACT_CMD+AT_CLIP} },
+{RSP_NULL, 606, 606, -1, 607, 5, {ACT_CMD+AT_ISO} },
+{RSP_OK, 606, 606, -1, 607, 5, {ACT_CMD+AT_ISO} },
+{RSP_OK, 607, 607, -1, 608, 5, {0}, "+VLS=17\r"},
+{RSP_OK, 608, 608, -1, 609, -1},
+{RSP_ZSAU, 609, 609, ZSAU_PROCEEDING, 610, 5, {ACT_CMD+AT_DIAL} },
+{RSP_OK, 610, 610, -1, 650, 0, {ACT_DIALING} },
+
+{RSP_ERROR, 601, 610, -1, 0, 0, {ACT_ABORTDIAL} },
+{EV_TIMEOUT, 601, 610, -1, 0, 0, {ACT_ABORTDIAL} },
+
+/* optional dialing responses */
+{EV_BC_OPEN, 650, 650, -1, 651, -1},
+{RSP_ZVLS, 609, 651, 17, -1, -1, {ACT_DEBUG} },
+{RSP_ZCTP, 610, 651, -1, -1, -1, {ACT_DEBUG} },
+{RSP_ZCPN, 610, 651, -1, -1, -1, {ACT_DEBUG} },
+{RSP_ZSAU, 650, 651, ZSAU_CALL_DELIVERED, -1, -1, {ACT_DEBUG} },
+
+/* connect */
+{RSP_ZSAU, 650, 650, ZSAU_ACTIVE, 800, -1, {ACT_CONNECT} },
+{RSP_ZSAU, 651, 651, ZSAU_ACTIVE, 800, -1, {ACT_CONNECT,
+ ACT_NOTIFY_BC_UP} },
+{RSP_ZSAU, 750, 750, ZSAU_ACTIVE, 800, -1, {ACT_CONNECT} },
+{RSP_ZSAU, 751, 751, ZSAU_ACTIVE, 800, -1, {ACT_CONNECT,
+ ACT_NOTIFY_BC_UP} },
+{EV_BC_OPEN, 800, 800, -1, 800, -1, {ACT_NOTIFY_BC_UP} },
+
+/* remote hangup */
+{RSP_ZSAU, 650, 651, ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEREJECT} },
+{RSP_ZSAU, 750, 751, ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP} },
+{RSP_ZSAU, 800, 800, ZSAU_DISCONNECT_IND, 0, 0, {ACT_REMOTEHUP} },
+
+/* hangup */
+{EV_HUP, -1, -1, -1, -1, -1, {ACT_HUP} },
+{RSP_INIT, -1, -1, SEQ_HUP, 401, 5, {0}, "+VLS=0\r"},
+{RSP_OK, 401, 401, -1, 402, 5},
+{RSP_ZVLS, 402, 402, 0, 403, 5},
+{RSP_ZSAU, 403, 403, ZSAU_DISCONNECT_REQ, -1, -1, {ACT_DEBUG} },
+{RSP_ZSAU, 403, 403, ZSAU_NULL, 0, 0, {ACT_DISCONNECT} },
+{RSP_NODEV, 401, 403, -1, 0, 0, {ACT_FAKEHUP} },
+{RSP_ERROR, 401, 401, -1, 0, 0, {ACT_ABORTHUP} },
+{EV_TIMEOUT, 401, 403, -1, 0, 0, {ACT_ABORTHUP} },
+
+{EV_BC_CLOSED, 0, 0, -1, 0, -1, {ACT_NOTIFY_BC_DOWN} },
+
+/* ring */
+{RSP_ZBC, 700, 700, -1, -1, -1, {0} },
+{RSP_ZHLC, 700, 700, -1, -1, -1, {0} },
+{RSP_NMBR, 700, 700, -1, -1, -1, {0} },
+{RSP_ZCPN, 700, 700, -1, -1, -1, {0} },
+{RSP_ZCTP, 700, 700, -1, -1, -1, {0} },
+{EV_TIMEOUT, 700, 700, -1, 720, 720, {ACT_ICALL} },
+{EV_BC_CLOSED, 720, 720, -1, 0, -1, {ACT_NOTIFY_BC_DOWN} },
+
+/*accept icall*/
+{EV_ACCEPT, -1, -1, -1, -1, -1, {ACT_ACCEPT} },
+{RSP_INIT, 720, 720, SEQ_ACCEPT, 721, 5, {ACT_CMD+AT_PROTO} },
+{RSP_OK, 721, 721, -1, 722, 5, {ACT_CMD+AT_ISO} },
+{RSP_OK, 722, 722, -1, 723, 5, {0}, "+VLS=17\r"},
+{RSP_OK, 723, 723, -1, 724, 5, {0} },
+{RSP_ZVLS, 724, 724, 17, 750, 50, {ACT_ACCEPTED} },
+{RSP_ERROR, 721, 729, -1, 0, 0, {ACT_ABORTACCEPT} },
+{EV_TIMEOUT, 721, 729, -1, 0, 0, {ACT_ABORTACCEPT} },
+{RSP_ZSAU, 700, 729, ZSAU_NULL, 0, 0, {ACT_ABORTACCEPT} },
+{RSP_ZSAU, 700, 729, ZSAU_ACTIVE, 0, 0, {ACT_ABORTACCEPT} },
+{RSP_ZSAU, 700, 729, ZSAU_DISCONNECT_IND, 0, 0, {ACT_ABORTACCEPT} },
+
+{EV_BC_OPEN, 750, 750, -1, 751, -1},
+{EV_TIMEOUT, 750, 751, -1, 0, 0, {ACT_CONNTIMEOUT} },
+
+/* B channel closed (general case) */
+{EV_BC_CLOSED, -1, -1, -1, -1, -1, {ACT_NOTIFY_BC_DOWN} },
+
+/* misc. */
+{RSP_ZCON, -1, -1, -1, -1, -1, {ACT_DEBUG} },
+{RSP_ZCCR, -1, -1, -1, -1, -1, {ACT_DEBUG} },
+{RSP_ZAOC, -1, -1, -1, -1, -1, {ACT_DEBUG} },
+{RSP_ZCSTR, -1, -1, -1, -1, -1, {ACT_DEBUG} },
+
+{RSP_ZCAU, -1, -1, -1, -1, -1, {ACT_ZCAU} },
+{RSP_NONE, -1, -1, -1, -1, -1, {ACT_DEBUG} },
+{RSP_ANY, -1, -1, -1, -1, -1, {ACT_WARN} },
+{RSP_LAST}
};
-static const struct resp_type_t resp_type[] =
+static const struct resp_type_t {
+ unsigned char *response;
+ int resp_code;
+ int type;
+} resp_type[] =
{
- /*{"", RSP_EMPTY, RT_NOTHING},*/
{"OK", RSP_OK, RT_NOTHING},
{"ERROR", RSP_ERROR, RT_NOTHING},
{"ZSAU", RSP_ZSAU, RT_ZSAU},
@@ -405,7 +403,21 @@ static const struct resp_type_t resp_type[] =
{"ZLOG", RSP_ZLOG, RT_NOTHING},
{"ZABINFO", RSP_ZABINFO, RT_NOTHING},
{"ZSMLSTCHG", RSP_ZSMLSTCHG, RT_NOTHING},
- {NULL,0,0}
+ {NULL, 0, 0}
+};
+
+static const struct zsau_resp_t {
+ unsigned char *str;
+ int code;
+} zsau_resp[] =
+{
+ {"OUTGOING_CALL_PROCEEDING", ZSAU_OUTGOING_CALL_PROCEEDING},
+ {"CALL_DELIVERED", ZSAU_CALL_DELIVERED},
+ {"ACTIVE", ZSAU_ACTIVE},
+ {"DISCONNECT_IND", ZSAU_DISCONNECT_IND},
+ {"NULL", ZSAU_NULL},
+ {"DISCONNECT_REQ", ZSAU_DISCONNECT_REQ},
+ {NULL, ZSAU_UNKNOWN}
};
/*
@@ -470,7 +482,6 @@ static int cid_of_response(char *s)
if (cid < 1 || cid > 65535)
return -1; /* CID out of range */
return cid;
- //FIXME is ;<digit>+ at end of non-CID response really impossible?
}
/**
@@ -487,6 +498,7 @@ void gigaset_handle_modem_response(struct cardstate *cs)
int params;
int i, j;
const struct resp_type_t *rt;
+ const struct zsau_resp_t *zr;
int curarg;
unsigned long flags;
unsigned next, tail, head;
@@ -613,24 +625,14 @@ void gigaset_handle_modem_response(struct cardstate *cs)
event->parameter = ZSAU_NONE;
break;
}
- if (!strcmp(argv[curarg], "OUTGOING_CALL_PROCEEDING"))
- event->parameter = ZSAU_OUTGOING_CALL_PROCEEDING;
- else if (!strcmp(argv[curarg], "CALL_DELIVERED"))
- event->parameter = ZSAU_CALL_DELIVERED;
- else if (!strcmp(argv[curarg], "ACTIVE"))
- event->parameter = ZSAU_ACTIVE;
- else if (!strcmp(argv[curarg], "DISCONNECT_IND"))
- event->parameter = ZSAU_DISCONNECT_IND;
- else if (!strcmp(argv[curarg], "NULL"))
- event->parameter = ZSAU_NULL;
- else if (!strcmp(argv[curarg], "DISCONNECT_REQ"))
- event->parameter = ZSAU_DISCONNECT_REQ;
- else {
- event->parameter = ZSAU_UNKNOWN;
+ for (zr = zsau_resp; zr->str; ++zr)
+ if (!strcmp(argv[curarg], zr->str))
+ break;
+ event->parameter = zr->code;
+ if (!zr->str)
dev_warn(cs->dev,
"%s: unknown parameter %s after ZSAU\n",
__func__, argv[curarg]);
- }
++curarg;
break;
case RT_STRING:
@@ -714,7 +716,7 @@ static void disconnect(struct at_state_t **at_state_p)
/* notify LL */
if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) {
bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL);
- gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DHUP);
+ gigaset_isdn_hupD(bcs);
}
} else {
/* no B channel assigned: just deallocate */
@@ -872,12 +874,12 @@ static void bchannel_down(struct bc_state *bcs)
{
if (bcs->chstate & CHS_B_UP) {
bcs->chstate &= ~CHS_B_UP;
- gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BHUP);
+ gigaset_isdn_hupB(bcs);
}
if (bcs->chstate & (CHS_D_UP | CHS_NOTIFY_LL)) {
bcs->chstate &= ~(CHS_D_UP | CHS_NOTIFY_LL);
- gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DHUP);
+ gigaset_isdn_hupD(bcs);
}
gigaset_free_channel(bcs);
@@ -894,15 +896,17 @@ static void bchannel_up(struct bc_state *bcs)
}
bcs->chstate |= CHS_B_UP;
- gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BCONN);
+ gigaset_isdn_connB(bcs);
}
-static void start_dial(struct at_state_t *at_state, void *data, unsigned seq_index)
+static void start_dial(struct at_state_t *at_state, void *data,
+ unsigned seq_index)
{
struct bc_state *bcs = at_state->bcs;
struct cardstate *cs = at_state->cs;
- int retval;
+ char **commands = data;
unsigned long flags;
+ int i;
bcs->chstate |= CHS_NOTIFY_LL;
@@ -913,10 +917,10 @@ static void start_dial(struct at_state_t *at_state, void *data, unsigned seq_ind
}
spin_unlock_irqrestore(&cs->lock, flags);
- retval = gigaset_isdn_setup_dial(at_state, data);
- if (retval != 0)
- goto error;
-
+ for (i = 0; i < AT_NUM; ++i) {
+ kfree(bcs->commands[i]);
+ bcs->commands[i] = commands[i];
+ }
at_state->pending_commands |= PC_CID;
gig_dbg(DEBUG_CMD, "Scheduling PC_CID");
@@ -924,6 +928,10 @@ static void start_dial(struct at_state_t *at_state, void *data, unsigned seq_ind
return;
error:
+ for (i = 0; i < AT_NUM; ++i) {
+ kfree(commands[i]);
+ commands[i] = NULL;
+ }
at_state->pending_commands |= PC_NOCID;
gig_dbg(DEBUG_CMD, "Scheduling PC_NOCID");
cs->commands_pending = 1;
@@ -933,20 +941,31 @@ error:
static void start_accept(struct at_state_t *at_state)
{
struct cardstate *cs = at_state->cs;
- int retval;
+ struct bc_state *bcs = at_state->bcs;
+ int i;
- retval = gigaset_isdn_setup_accept(at_state);
+ for (i = 0; i < AT_NUM; ++i) {
+ kfree(bcs->commands[i]);
+ bcs->commands[i] = NULL;
+ }
- if (retval == 0) {
- at_state->pending_commands |= PC_ACCEPT;
- gig_dbg(DEBUG_CMD, "Scheduling PC_ACCEPT");
- cs->commands_pending = 1;
- } else {
+ bcs->commands[AT_PROTO] = kmalloc(9, GFP_ATOMIC);
+ bcs->commands[AT_ISO] = kmalloc(9, GFP_ATOMIC);
+ if (!bcs->commands[AT_PROTO] || !bcs->commands[AT_ISO]) {
+ dev_err(at_state->cs->dev, "out of memory\n");
/* error reset */
at_state->pending_commands |= PC_HUP;
gig_dbg(DEBUG_CMD, "Scheduling PC_HUP");
cs->commands_pending = 1;
+ return;
}
+
+ snprintf(bcs->commands[AT_PROTO], 9, "^SBPR=%u\r", bcs->proto2);
+ snprintf(bcs->commands[AT_ISO], 9, "^SISO=%u\r", bcs->channel + 1);
+
+ at_state->pending_commands |= PC_ACCEPT;
+ gig_dbg(DEBUG_CMD, "Scheduling PC_ACCEPT");
+ cs->commands_pending = 1;
}
static void do_start(struct cardstate *cs)
@@ -957,9 +976,7 @@ static void do_start(struct cardstate *cs)
schedule_init(cs, MS_INIT);
cs->isdn_up = 1;
- gigaset_i4l_cmd(cs, ISDN_STAT_RUN);
- // FIXME: not in locked mode
- // FIXME 2: only after init sequence
+ gigaset_isdn_start(cs);
cs->waiting = 0;
wake_up(&cs->waitqueue);
@@ -975,7 +992,7 @@ static void finish_shutdown(struct cardstate *cs)
/* Tell the LL that the device is not available .. */
if (cs->isdn_up) {
cs->isdn_up = 0;
- gigaset_i4l_cmd(cs, ISDN_STAT_STOP);
+ gigaset_isdn_stop(cs);
}
/* The rest is done by cleanup_cs () in user mode. */
@@ -1113,7 +1130,6 @@ static int do_lock(struct cardstate *cs)
break;
case MS_LOCKED:
- //retval = -EACCES;
break;
default:
return -EBUSY;
@@ -1276,7 +1292,7 @@ static void do_action(int action, struct cardstate *cs,
break;
}
bcs->chstate |= CHS_D_UP;
- gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN);
+ gigaset_isdn_connD(bcs);
cs->ops->init_bchannel(bcs);
break;
case ACT_DLE1:
@@ -1284,7 +1300,7 @@ static void do_action(int action, struct cardstate *cs,
bcs = cs->bcs + cs->curchannel;
bcs->chstate |= CHS_D_UP;
- gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN);
+ gigaset_isdn_connD(bcs);
cs->ops->init_bchannel(bcs);
break;
case ACT_FAKEHUP:
@@ -1369,7 +1385,7 @@ static void do_action(int action, struct cardstate *cs,
cs->cur_at_seq = SEQ_NONE;
break;
- case ACT_ABORTACCEPT: /* hangup/error/timeout during ICALL processing */
+ case ACT_ABORTACCEPT: /* hangup/error/timeout during ICALL procssng */
disconnect(p_at_state);
break;
@@ -1443,17 +1459,6 @@ static void do_action(int action, struct cardstate *cs,
__func__, at_state->ConState);
cs->cur_at_seq = SEQ_NONE;
break;
-#ifdef CONFIG_GIGASET_DEBUG
- case ACT_TEST:
- {
- static int count = 3; //2; //1;
- *p_genresp = 1;
- *p_resp_code = count ? RSP_ERROR : RSP_OK;
- if (count > 0)
- --count;
- }
- break;
-#endif
case ACT_DEBUG:
gig_dbg(DEBUG_ANY, "%s: resp_code %d in ConState %d",
__func__, ev->type, at_state->ConState);
@@ -1474,11 +1479,6 @@ static void do_action(int action, struct cardstate *cs,
case ACT_ACCEPT:
start_accept(at_state);
break;
- case ACT_PROTO_L2:
- gig_dbg(DEBUG_CMD, "set protocol to %u",
- (unsigned) ev->parameter);
- at_state->bcs->proto2 = ev->parameter;
- break;
case ACT_HUP:
at_state->pending_commands |= PC_HUP;
cs->commands_pending = 1;
@@ -1493,7 +1493,7 @@ static void do_action(int action, struct cardstate *cs,
do_start(cs);
break;
- /* events from the interface */ // FIXME without ACT_xxxx?
+ /* events from the interface */
case ACT_IF_LOCK:
cs->cmd_result = ev->parameter ? do_lock(cs) : do_unlock(cs);
cs->waiting = 0;
@@ -1512,7 +1512,7 @@ static void do_action(int action, struct cardstate *cs,
wake_up(&cs->waitqueue);
break;
- /* events from the proc file system */ // FIXME without ACT_xxxx?
+ /* events from the proc file system */
case ACT_PROC_CIDMODE:
spin_lock_irqsave(&cs->lock, flags);
if (ev->parameter != cs->cidmode) {
@@ -1649,7 +1649,8 @@ static void process_event(struct cardstate *cs, struct event_t *ev)
for (curact = 0; curact < MAXACT; ++curact) {
/* The row tells us what we should do ..
*/
- do_action(rep->action[curact], cs, bcs, &at_state, &p_command, &genresp, &resp_code, ev);
+ do_action(rep->action[curact], cs, bcs, &at_state, &p_command,
+ &genresp, &resp_code, ev);
if (!at_state)
break; /* may be freed after disconnect */
}
@@ -1661,13 +1662,14 @@ static void process_event(struct cardstate *cs, struct event_t *ev)
if (genresp) {
spin_lock_irqsave(&cs->lock, flags);
- at_state->timer_expires = 0; //FIXME
- at_state->timer_active = 0; //FIXME
+ at_state->timer_expires = 0;
+ at_state->timer_active = 0;
spin_unlock_irqrestore(&cs->lock, flags);
- gigaset_add_event(cs, at_state, resp_code, NULL, 0, NULL);
+ gigaset_add_event(cs, at_state, resp_code,
+ NULL, 0, NULL);
} else {
/* Send command to modem if not NULL... */
- if (p_command/*rep->command*/) {
+ if (p_command) {
if (cs->connected)
send_command(cs, p_command,
sendcid, cs->dle,
@@ -1754,7 +1756,8 @@ static void process_command_flags(struct cardstate *cs)
}
}
- /* only switch back to unimodem mode, if no commands are pending and no channels are up */
+ /* only switch back to unimodem mode if no commands are pending and
+ * no channels are up */
spin_lock_irqsave(&cs->lock, flags);
if (cs->at_state.pending_commands == PC_UMMODE
&& !cs->cidmode
@@ -1813,9 +1816,8 @@ static void process_command_flags(struct cardstate *cs)
if (cs->at_state.pending_commands & PC_INIT) {
cs->at_state.pending_commands &= ~PC_INIT;
- cs->dle = 0; //FIXME
+ cs->dle = 0;
cs->inbuf->inputstate = INS_command;
- //FIXME reset card state (or -> LOCK0)?
schedule_sequence(cs, &cs->at_state, SEQ_INIT);
return;
}
diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h
index a2f6125739e..e963a6c2e86 100644
--- a/drivers/isdn/gigaset/gigaset.h
+++ b/drivers/isdn/gigaset/gigaset.h
@@ -23,7 +23,6 @@
#include <linux/compiler.h>
#include <linux/types.h>
#include <linux/spinlock.h>
-#include <linux/isdnif.h>
#include <linux/usb.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
@@ -35,12 +34,11 @@
#include <linux/list.h>
#include <asm/atomic.h>
-#define GIG_VERSION {0,5,0,0}
-#define GIG_COMPAT {0,4,0,0}
+#define GIG_VERSION {0, 5, 0, 0}
+#define GIG_COMPAT {0, 4, 0, 0}
#define MAX_REC_PARAMS 10 /* Max. number of params in response string */
#define MAX_RESP_SIZE 512 /* Max. size of a response string */
-#define HW_HDR_LEN 2 /* Header size used to store ack info */
#define MAX_EVENTS 64 /* size of event queue */
@@ -135,35 +133,32 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
#define OUT_VENDOR_REQ (USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT)
#define IN_VENDOR_REQ (USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT)
-/* int-in-events 3070 */
+/* interrupt pipe messages */
#define HD_B1_FLOW_CONTROL 0x80
#define HD_B2_FLOW_CONTROL 0x81
-#define HD_RECEIVEATDATA_ACK (0x35) // 3070
- // att: HD_RECEIVE>>AT<<DATA_ACK
-#define HD_READY_SEND_ATDATA (0x36) // 3070
-#define HD_OPEN_ATCHANNEL_ACK (0x37) // 3070
-#define HD_CLOSE_ATCHANNEL_ACK (0x38) // 3070
-#define HD_DEVICE_INIT_OK (0x11) // ISurf USB + 3070
-#define HD_OPEN_B1CHANNEL_ACK (0x51) // ISurf USB + 3070
-#define HD_OPEN_B2CHANNEL_ACK (0x52) // ISurf USB + 3070
-#define HD_CLOSE_B1CHANNEL_ACK (0x53) // ISurf USB + 3070
-#define HD_CLOSE_B2CHANNEL_ACK (0x54) // ISurf USB + 3070
-// Powermangment
-#define HD_SUSPEND_END (0x61) // ISurf USB
-// Configuration
-#define HD_RESET_INTERRUPT_PIPE_ACK (0xFF) // ISurf USB + 3070
-
-/* control requests 3070 */
-#define HD_OPEN_B1CHANNEL (0x23) // ISurf USB + 3070
-#define HD_CLOSE_B1CHANNEL (0x24) // ISurf USB + 3070
-#define HD_OPEN_B2CHANNEL (0x25) // ISurf USB + 3070
-#define HD_CLOSE_B2CHANNEL (0x26) // ISurf USB + 3070
-#define HD_RESET_INTERRUPT_PIPE (0x27) // ISurf USB + 3070
-#define HD_DEVICE_INIT_ACK (0x34) // ISurf USB + 3070
-#define HD_WRITE_ATMESSAGE (0x12) // 3070
-#define HD_READ_ATMESSAGE (0x13) // 3070
-#define HD_OPEN_ATCHANNEL (0x28) // 3070
-#define HD_CLOSE_ATCHANNEL (0x29) // 3070
+#define HD_RECEIVEATDATA_ACK (0x35) /* 3070 */
+#define HD_READY_SEND_ATDATA (0x36) /* 3070 */
+#define HD_OPEN_ATCHANNEL_ACK (0x37) /* 3070 */
+#define HD_CLOSE_ATCHANNEL_ACK (0x38) /* 3070 */
+#define HD_DEVICE_INIT_OK (0x11) /* ISurf USB + 3070 */
+#define HD_OPEN_B1CHANNEL_ACK (0x51) /* ISurf USB + 3070 */
+#define HD_OPEN_B2CHANNEL_ACK (0x52) /* ISurf USB + 3070 */
+#define HD_CLOSE_B1CHANNEL_ACK (0x53) /* ISurf USB + 3070 */
+#define HD_CLOSE_B2CHANNEL_ACK (0x54) /* ISurf USB + 3070 */
+#define HD_SUSPEND_END (0x61) /* ISurf USB */
+#define HD_RESET_INTERRUPT_PIPE_ACK (0xFF) /* ISurf USB + 3070 */
+
+/* control requests */
+#define HD_OPEN_B1CHANNEL (0x23) /* ISurf USB + 3070 */
+#define HD_CLOSE_B1CHANNEL (0x24) /* ISurf USB + 3070 */
+#define HD_OPEN_B2CHANNEL (0x25) /* ISurf USB + 3070 */
+#define HD_CLOSE_B2CHANNEL (0x26) /* ISurf USB + 3070 */
+#define HD_RESET_INTERRUPT_PIPE (0x27) /* ISurf USB + 3070 */
+#define HD_DEVICE_INIT_ACK (0x34) /* ISurf USB + 3070 */
+#define HD_WRITE_ATMESSAGE (0x12) /* 3070 */
+#define HD_READ_ATMESSAGE (0x13) /* 3070 */
+#define HD_OPEN_ATCHANNEL (0x28) /* 3070 */
+#define HD_CLOSE_ATCHANNEL (0x29) /* 3070 */
/* number of B channels supported by base driver */
#define BAS_CHANNELS 2
@@ -193,7 +188,9 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
#define AT_PROTO 4
#define AT_TYPE 5
#define AT_HLC 6
-#define AT_NUM 7
+#define AT_CLIP 7
+/* total number */
+#define AT_NUM 8
/* variables in struct at_state_t */
#define VAR_ZSAU 0
@@ -216,7 +213,6 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
#define EV_START -110
#define EV_STOP -111
#define EV_IF_LOCK -112
-#define EV_PROTO_L2 -113
#define EV_ACCEPT -114
#define EV_DIAL -115
#define EV_HUP -116
@@ -224,12 +220,11 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
#define EV_BC_CLOSED -118
/* input state */
-#define INS_command 0x0001
-#define INS_DLE_char 0x0002
+#define INS_command 0x0001 /* receiving messages (not payload data) */
+#define INS_DLE_char 0x0002 /* DLE flag received (in DLE mode) */
#define INS_byte_stuff 0x0004
#define INS_have_data 0x0008
-#define INS_skip_frame 0x0010
-#define INS_DLE_command 0x0020
+#define INS_DLE_command 0x0020 /* DLE message start (<DLE> X) received */
#define INS_flag_hunt 0x0040
/* channel state */
@@ -259,6 +254,11 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
#define SM_LOCKED 0
#define SM_ISDN 1 /* default */
+/* layer 2 protocols (AT^SBPR=...) */
+#define L2_BITSYNC 0
+#define L2_HDLC 1
+#define L2_VOICE 2
+
struct gigaset_ops;
struct gigaset_driver;
@@ -286,8 +286,6 @@ extern struct reply_t gigaset_tab_cid[];
extern struct reply_t gigaset_tab_nocid[];
struct inbuf_t {
- unsigned char *rcvbuf; /* usb-gigaset receive buffer */
- struct bc_state *bcs;
struct cardstate *cs;
int inputstate;
int head, tail;
@@ -359,12 +357,6 @@ struct at_state_t {
struct bc_state *bcs;
};
-struct resp_type_t {
- unsigned char *response;
- int resp_code; /* RSP_XXXX */
- int type; /* RT_XXXX */
-};
-
struct event_t {
int type;
void *ptr, *arg;
@@ -395,7 +387,7 @@ struct bc_state {
unsigned chstate; /* bitmap (CHS_*) */
int ignore;
- unsigned proto2; /* Layer 2 protocol (ISDN_PROTO_L2_*) */
+ unsigned proto2; /* layer 2 protocol (L2_*) */
char *commands[AT_NUM]; /* see AT_XXXX */
#ifdef CONFIG_GIGASET_DEBUG
@@ -410,6 +402,8 @@ struct bc_state {
struct usb_bc_state *usb; /* usb hardware driver (m105) */
struct bas_bc_state *bas; /* usb hardware driver (base) */
} hw;
+
+ void *ap; /* LL application structure */
};
struct cardstate {
@@ -456,12 +450,13 @@ struct cardstate {
unsigned running; /* !=0 if events are handled */
unsigned connected; /* !=0 if hardware is connected */
- unsigned isdn_up; /* !=0 after ISDN_STAT_RUN */
+ unsigned isdn_up; /* !=0 after gigaset_isdn_start() */
unsigned cidmode;
int myid; /* id for communication with LL */
- isdn_if iif;
+ void *iif; /* LL interface structure */
+ unsigned short hw_hdr_len; /* headroom needed in data skbs */
struct reply_t *tabnocid;
struct reply_t *tabcid;
@@ -476,8 +471,8 @@ struct cardstate {
struct timer_list timer;
int retry_count;
- int dle; /* !=0 if modem commands/responses are
- dle encoded */
+ int dle; /* !=0 if DLE mode is active
+ (ZDLE=1 received -- M10x only) */
int cur_at_seq; /* sequence of AT commands being
processed */
int curchannel; /* channel those commands are meant
@@ -616,7 +611,9 @@ struct gigaset_ops {
int (*baud_rate)(struct cardstate *cs, unsigned cflag);
int (*set_line_ctrl)(struct cardstate *cs, unsigned cflag);
- /* Called from i4l.c to put an skb into the send-queue. */
+ /* Called from LL interface to put an skb into the send-queue.
+ * After sending is completed, gigaset_skb_sent() must be called
+ * with the skb's link layer header preserved. */
int (*send_skb)(struct bc_state *bcs, struct sk_buff *skb);
/* Called from ev-layer.c to process a block of data
@@ -625,7 +622,8 @@ struct gigaset_ops {
};
-/* = Common structures and definitions ======================================= */
+/* = Common structures and definitions =======================================
+ */
/* Parser states for DLE-Event:
* <DLE-EVENT>: <DLE_FLAG> "X" <EVENT> <DLE_FLAG> "."
@@ -638,8 +636,7 @@ struct gigaset_ops {
* Functions implemented in asyncdata.c
*/
-/* Called from i4l.c to put an skb into the send-queue.
- * After sending gigaset_skb_sent() should be called. */
+/* Called from LL interface to put an skb into the send queue. */
int gigaset_m10x_send_skb(struct bc_state *bcs, struct sk_buff *skb);
/* Called from ev-layer.c to process a block of data
@@ -650,8 +647,7 @@ void gigaset_m10x_input(struct inbuf_t *inbuf);
* Functions implemented in isocdata.c
*/
-/* Called from i4l.c to put an skb into the send-queue.
- * After sending gigaset_skb_sent() should be called. */
+/* Called from LL interface to put an skb into the send queue. */
int gigaset_isoc_send_skb(struct bc_state *bcs, struct sk_buff *skb);
/* Called from ev-layer.c to process a block of data
@@ -674,36 +670,26 @@ void gigaset_isowbuf_init(struct isowbuf_t *iwb, unsigned char idle);
int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size);
/* ===========================================================================
- * Functions implemented in i4l.c/gigaset.h
+ * Functions implemented in LL interface
*/
-/* Called by gigaset_initcs() for setting up with the isdn4linux subsystem */
-int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid);
+/* Called from common.c for setting up/shutting down with the ISDN subsystem */
+int gigaset_isdn_register(struct cardstate *cs, const char *isdnid);
+void gigaset_isdn_unregister(struct cardstate *cs);
-/* Called from xxx-gigaset.c to indicate completion of sending an skb */
+/* Called from hardware module to indicate completion of an skb */
void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb);
+void gigaset_skb_rcvd(struct bc_state *bcs, struct sk_buff *skb);
+void gigaset_isdn_rcv_err(struct bc_state *bcs);
/* Called from common.c/ev-layer.c to indicate events relevant to the LL */
+void gigaset_isdn_start(struct cardstate *cs);
+void gigaset_isdn_stop(struct cardstate *cs);
int gigaset_isdn_icall(struct at_state_t *at_state);
-int gigaset_isdn_setup_accept(struct at_state_t *at_state);
-int gigaset_isdn_setup_dial(struct at_state_t *at_state, void *data);
-
-void gigaset_i4l_cmd(struct cardstate *cs, int cmd);
-void gigaset_i4l_channel_cmd(struct bc_state *bcs, int cmd);
-
-
-static inline void gigaset_isdn_rcv_err(struct bc_state *bcs)
-{
- isdn_ctrl response;
-
- /* error -> LL */
- gig_dbg(DEBUG_CMD, "sending L1ERR");
- response.driver = bcs->cs->myid;
- response.command = ISDN_STAT_L1ERR;
- response.arg = bcs->channel;
- response.parm.errcode = ISDN_STAT_L1ERR_RECV;
- bcs->cs->iif.statcallb(&response);
-}
+void gigaset_isdn_connD(struct bc_state *bcs);
+void gigaset_isdn_hupD(struct bc_state *bcs);
+void gigaset_isdn_connB(struct bc_state *bcs);
+void gigaset_isdn_hupB(struct bc_state *bcs);
/* ===========================================================================
* Functions implemented in ev-layer.c
@@ -732,6 +718,7 @@ void gigaset_bcs_reinit(struct bc_state *bcs);
void gigaset_at_init(struct at_state_t *at_state, struct bc_state *bcs,
struct cardstate *cs, int cid);
int gigaset_get_channel(struct bc_state *bcs);
+struct bc_state *gigaset_get_free_channel(struct cardstate *cs);
void gigaset_free_channel(struct bc_state *bcs);
int gigaset_get_channels(struct cardstate *cs);
void gigaset_free_channels(struct cardstate *cs);
@@ -781,7 +768,7 @@ struct event_t *gigaset_add_event(struct cardstate *cs,
void *ptr, int parameter, void *arg);
/* Called on CONFIG1 command from frontend. */
-int gigaset_enterconfigmode(struct cardstate *cs); //0: success <0: errorcode
+int gigaset_enterconfigmode(struct cardstate *cs);
/* cs->lock must not be locked */
static inline void gigaset_schedule_event(struct cardstate *cs)
@@ -816,35 +803,6 @@ static inline void gigaset_bchannel_up(struct bc_state *bcs)
/* handling routines for sk_buff */
/* ============================= */
-/* pass received skb to LL
- * Warning: skb must not be accessed anymore!
- */
-static inline void gigaset_rcv_skb(struct sk_buff *skb,
- struct cardstate *cs,
- struct bc_state *bcs)
-{
- cs->iif.rcvcallb_skb(cs->myid, bcs->channel, skb);
- bcs->trans_down++;
-}
-
-/* handle reception of corrupted skb
- * Warning: skb must not be accessed anymore!
- */
-static inline void gigaset_rcv_error(struct sk_buff *procskb,
- struct cardstate *cs,
- struct bc_state *bcs)
-{
- if (procskb)
- dev_kfree_skb(procskb);
-
- if (bcs->ignore)
- --bcs->ignore;
- else {
- ++bcs->corrupted;
- gigaset_isdn_rcv_err(bcs);
- }
-}
-
/* append received bytes to inbuf */
int gigaset_fill_inbuf(struct inbuf_t *inbuf, const unsigned char *src,
unsigned numbytes);
diff --git a/drivers/isdn/gigaset/i4l.c b/drivers/isdn/gigaset/i4l.c
index 654489d836c..c129ee47a8f 100644
--- a/drivers/isdn/gigaset/i4l.c
+++ b/drivers/isdn/gigaset/i4l.c
@@ -14,6 +14,9 @@
*/
#include "gigaset.h"
+#include <linux/isdnif.h>
+
+#define HW_HDR_LEN 2 /* Header size used to store ack info */
/* == Handling of I4L IO =====================================================*/
@@ -36,12 +39,12 @@
static int writebuf_from_LL(int driverID, int channel, int ack,
struct sk_buff *skb)
{
- struct cardstate *cs;
+ struct cardstate *cs = gigaset_get_cs_by_id(driverID);
struct bc_state *bcs;
+ unsigned char *ack_header;
unsigned len;
- unsigned skblen;
- if (!(cs = gigaset_get_cs_by_id(driverID))) {
+ if (!cs) {
pr_err("%s: invalid driver ID (%d)\n", __func__, driverID);
return -ENODEV;
}
@@ -75,11 +78,23 @@ static int writebuf_from_LL(int driverID, int channel, int ack,
return -EINVAL;
}
- skblen = ack ? len : 0;
- skb->head[0] = skblen & 0xff;
- skb->head[1] = skblen >> 8;
- gig_dbg(DEBUG_MCMD, "skb: len=%u, skblen=%u: %02x %02x",
- len, skblen, (unsigned) skb->head[0], (unsigned) skb->head[1]);
+ /* set up acknowledgement header */
+ if (skb_headroom(skb) < HW_HDR_LEN) {
+ /* should never happen */
+ dev_err(cs->dev, "%s: insufficient skb headroom\n", __func__);
+ return -ENOMEM;
+ }
+ skb_set_mac_header(skb, -HW_HDR_LEN);
+ skb->mac_len = HW_HDR_LEN;
+ ack_header = skb_mac_header(skb);
+ if (ack) {
+ ack_header[0] = len & 0xff;
+ ack_header[1] = len >> 8;
+ } else {
+ ack_header[0] = ack_header[1] = 0;
+ }
+ gig_dbg(DEBUG_MCMD, "skb: len=%u, ack=%d: %02x %02x",
+ len, ack, ack_header[0], ack_header[1]);
/* pass to device-specific module */
return cs->ops->send_skb(bcs, skb);
@@ -95,6 +110,8 @@ static int writebuf_from_LL(int driverID, int channel, int ack,
*/
void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb)
{
+ isdn_if *iif = bcs->cs->iif;
+ unsigned char *ack_header = skb_mac_header(skb);
unsigned len;
isdn_ctrl response;
@@ -104,8 +121,7 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb)
dev_warn(bcs->cs->dev, "%s: skb->len==%d\n",
__func__, skb->len);
- len = (unsigned char) skb->head[0] |
- (unsigned) (unsigned char) skb->head[1] << 8;
+ len = ack_header[0] + ((unsigned) ack_header[1] << 8);
if (len) {
gig_dbg(DEBUG_MCMD, "ACKing to LL (id: %d, ch: %d, sz: %u)",
bcs->cs->myid, bcs->channel, len);
@@ -114,71 +130,177 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb)
response.command = ISDN_STAT_BSENT;
response.arg = bcs->channel;
response.parm.length = len;
- bcs->cs->iif.statcallb(&response);
+ iif->statcallb(&response);
}
}
EXPORT_SYMBOL_GPL(gigaset_skb_sent);
+/**
+ * gigaset_skb_rcvd() - pass received skb to LL
+ * @bcs: B channel descriptor structure.
+ * @skb: received data.
+ *
+ * Called by hardware module {bas,ser,usb}_gigaset when user data has
+ * been successfully received, for passing to the LL.
+ * Warning: skb must not be accessed anymore!
+ */
+void gigaset_skb_rcvd(struct bc_state *bcs, struct sk_buff *skb)
+{
+ isdn_if *iif = bcs->cs->iif;
+
+ iif->rcvcallb_skb(bcs->cs->myid, bcs->channel, skb);
+ bcs->trans_down++;
+}
+EXPORT_SYMBOL_GPL(gigaset_skb_rcvd);
+
+/**
+ * gigaset_isdn_rcv_err() - signal receive error
+ * @bcs: B channel descriptor structure.
+ *
+ * Called by hardware module {bas,ser,usb}_gigaset when a receive error
+ * has occurred, for signalling to the LL.
+ */
+void gigaset_isdn_rcv_err(struct bc_state *bcs)
+{
+ isdn_if *iif = bcs->cs->iif;
+ isdn_ctrl response;
+
+ /* if currently ignoring packets, just count down */
+ if (bcs->ignore) {
+ bcs->ignore--;
+ return;
+ }
+
+ /* update statistics */
+ bcs->corrupted++;
+
+ /* error -> LL */
+ gig_dbg(DEBUG_CMD, "sending L1ERR");
+ response.driver = bcs->cs->myid;
+ response.command = ISDN_STAT_L1ERR;
+ response.arg = bcs->channel;
+ response.parm.errcode = ISDN_STAT_L1ERR_RECV;
+ iif->statcallb(&response);
+}
+EXPORT_SYMBOL_GPL(gigaset_isdn_rcv_err);
+
/* This function will be called by LL to send commands
* NOTE: LL ignores the returned value, for commands other than ISDN_CMD_IOCTL,
* so don't put too much effort into it.
*/
static int command_from_LL(isdn_ctrl *cntrl)
{
- struct cardstate *cs = gigaset_get_cs_by_id(cntrl->driver);
+ struct cardstate *cs;
struct bc_state *bcs;
int retval = 0;
- struct setup_parm *sp;
+ char **commands;
+ int ch;
+ int i;
+ size_t l;
gigaset_debugdrivers();
- if (!cs) {
+ gig_dbg(DEBUG_CMD, "driver: %d, command: %d, arg: 0x%lx",
+ cntrl->driver, cntrl->command, cntrl->arg);
+
+ cs = gigaset_get_cs_by_id(cntrl->driver);
+ if (cs == NULL) {
pr_err("%s: invalid driver ID (%d)\n", __func__, cntrl->driver);
return -ENODEV;
}
+ ch = cntrl->arg & 0xff;
switch (cntrl->command) {
case ISDN_CMD_IOCTL:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_IOCTL (driver: %d, arg: %ld)",
- cntrl->driver, cntrl->arg);
-
dev_warn(cs->dev, "ISDN_CMD_IOCTL not supported\n");
return -EINVAL;
case ISDN_CMD_DIAL:
gig_dbg(DEBUG_ANY,
- "ISDN_CMD_DIAL (driver: %d, ch: %ld, "
- "phone: %s, ownmsn: %s, si1: %d, si2: %d)",
- cntrl->driver, cntrl->arg,
+ "ISDN_CMD_DIAL (phone: %s, msn: %s, si1: %d, si2: %d)",
cntrl->parm.setup.phone, cntrl->parm.setup.eazmsn,
cntrl->parm.setup.si1, cntrl->parm.setup.si2);
- if (cntrl->arg >= cs->channels) {
+ if (ch >= cs->channels) {
dev_err(cs->dev,
- "ISDN_CMD_DIAL: invalid channel (%d)\n",
- (int) cntrl->arg);
+ "ISDN_CMD_DIAL: invalid channel (%d)\n", ch);
return -EINVAL;
}
-
- bcs = cs->bcs + cntrl->arg;
-
+ bcs = cs->bcs + ch;
if (!gigaset_get_channel(bcs)) {
dev_err(cs->dev, "ISDN_CMD_DIAL: channel not free\n");
return -EBUSY;
}
- sp = kmalloc(sizeof *sp, GFP_ATOMIC);
- if (!sp) {
+ commands = kzalloc(AT_NUM*(sizeof *commands), GFP_ATOMIC);
+ if (!commands) {
gigaset_free_channel(bcs);
dev_err(cs->dev, "ISDN_CMD_DIAL: out of memory\n");
return -ENOMEM;
}
- *sp = cntrl->parm.setup;
- if (!gigaset_add_event(cs, &bcs->at_state, EV_DIAL, sp,
+ l = 3 + strlen(cntrl->parm.setup.phone);
+ commands[AT_DIAL] = kmalloc(l, GFP_ATOMIC);
+ if (!commands[AT_DIAL])
+ goto oom;
+ if (cntrl->parm.setup.phone[0] == '*' &&
+ cntrl->parm.setup.phone[1] == '*') {
+ /* internal call: translate ** prefix to CTP value */
+ commands[AT_TYPE] = kstrdup("^SCTP=0\r", GFP_ATOMIC);
+ if (!commands[AT_TYPE])
+ goto oom;
+ snprintf(commands[AT_DIAL], l,
+ "D%s\r", cntrl->parm.setup.phone+2);
+ } else {
+ commands[AT_TYPE] = kstrdup("^SCTP=1\r", GFP_ATOMIC);
+ if (!commands[AT_TYPE])
+ goto oom;
+ snprintf(commands[AT_DIAL], l,
+ "D%s\r", cntrl->parm.setup.phone);
+ }
+
+ l = strlen(cntrl->parm.setup.eazmsn);
+ if (l) {
+ l += 8;
+ commands[AT_MSN] = kmalloc(l, GFP_ATOMIC);
+ if (!commands[AT_MSN])
+ goto oom;
+ snprintf(commands[AT_MSN], l, "^SMSN=%s\r",
+ cntrl->parm.setup.eazmsn);
+ }
+
+ switch (cntrl->parm.setup.si1) {
+ case 1: /* audio */
+ /* BC = 9090A3: 3.1 kHz audio, A-law */
+ commands[AT_BC] = kstrdup("^SBC=9090A3\r", GFP_ATOMIC);
+ if (!commands[AT_BC])
+ goto oom;
+ break;
+ case 7: /* data */
+ default: /* hope the app knows what it is doing */
+ /* BC = 8890: unrestricted digital information */
+ commands[AT_BC] = kstrdup("^SBC=8890\r", GFP_ATOMIC);
+ if (!commands[AT_BC])
+ goto oom;
+ }
+ /* ToDo: other si1 values, inspect si2, set HLC/LLC */
+
+ commands[AT_PROTO] = kmalloc(9, GFP_ATOMIC);
+ if (!commands[AT_PROTO])
+ goto oom;
+ snprintf(commands[AT_PROTO], 9, "^SBPR=%u\r", bcs->proto2);
+
+ commands[AT_ISO] = kmalloc(9, GFP_ATOMIC);
+ if (!commands[AT_ISO])
+ goto oom;
+ snprintf(commands[AT_ISO], 9, "^SISO=%u\r",
+ (unsigned) bcs->channel + 1);
+
+ if (!gigaset_add_event(cs, &bcs->at_state, EV_DIAL, commands,
bcs->at_state.seq_index, NULL)) {
- //FIXME what should we do?
- kfree(sp);
+ for (i = 0; i < AT_NUM; ++i)
+ kfree(commands[i]);
+ kfree(commands);
gigaset_free_channel(bcs);
return -ENOMEM;
}
@@ -186,115 +308,102 @@ static int command_from_LL(isdn_ctrl *cntrl)
gig_dbg(DEBUG_CMD, "scheduling DIAL");
gigaset_schedule_event(cs);
break;
- case ISDN_CMD_ACCEPTD: //FIXME
- gig_dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTD");
-
- if (cntrl->arg >= cs->channels) {
+ case ISDN_CMD_ACCEPTD:
+ if (ch >= cs->channels) {
dev_err(cs->dev,
- "ISDN_CMD_ACCEPTD: invalid channel (%d)\n",
- (int) cntrl->arg);
+ "ISDN_CMD_ACCEPTD: invalid channel (%d)\n", ch);
return -EINVAL;
}
-
- if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg].at_state,
- EV_ACCEPT, NULL, 0, NULL)) {
- //FIXME what should we do?
+ bcs = cs->bcs + ch;
+ if (!gigaset_add_event(cs, &bcs->at_state,
+ EV_ACCEPT, NULL, 0, NULL))
return -ENOMEM;
- }
gig_dbg(DEBUG_CMD, "scheduling ACCEPT");
gigaset_schedule_event(cs);
break;
case ISDN_CMD_ACCEPTB:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTB");
break;
case ISDN_CMD_HANGUP:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_HANGUP (ch: %d)",
- (int) cntrl->arg);
-
- if (cntrl->arg >= cs->channels) {
+ if (ch >= cs->channels) {
dev_err(cs->dev,
- "ISDN_CMD_HANGUP: invalid channel (%d)\n",
- (int) cntrl->arg);
+ "ISDN_CMD_HANGUP: invalid channel (%d)\n", ch);
return -EINVAL;
}
-
- if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg].at_state,
- EV_HUP, NULL, 0, NULL)) {
- //FIXME what should we do?
+ bcs = cs->bcs + ch;
+ if (!gigaset_add_event(cs, &bcs->at_state,
+ EV_HUP, NULL, 0, NULL))
return -ENOMEM;
- }
gig_dbg(DEBUG_CMD, "scheduling HUP");
gigaset_schedule_event(cs);
break;
- case ISDN_CMD_CLREAZ: /* Do not signal incoming signals */ //FIXME
- gig_dbg(DEBUG_ANY, "ISDN_CMD_CLREAZ");
+ case ISDN_CMD_CLREAZ: /* Do not signal incoming signals */
+ dev_info(cs->dev, "ignoring ISDN_CMD_CLREAZ\n");
break;
- case ISDN_CMD_SETEAZ: /* Signal incoming calls for given MSN */ //FIXME
- gig_dbg(DEBUG_ANY,
- "ISDN_CMD_SETEAZ (id: %d, ch: %ld, number: %s)",
- cntrl->driver, cntrl->arg, cntrl->parm.num);
+ case ISDN_CMD_SETEAZ: /* Signal incoming calls for given MSN */
+ dev_info(cs->dev, "ignoring ISDN_CMD_SETEAZ (%s)\n",
+ cntrl->parm.num);
break;
case ISDN_CMD_SETL2: /* Set L2 to given protocol */
- gig_dbg(DEBUG_ANY, "ISDN_CMD_SETL2 (ch: %ld, proto: %lx)",
- cntrl->arg & 0xff, (cntrl->arg >> 8));
-
- if ((cntrl->arg & 0xff) >= cs->channels) {
+ if (ch >= cs->channels) {
dev_err(cs->dev,
- "ISDN_CMD_SETL2: invalid channel (%d)\n",
- (int) cntrl->arg & 0xff);
+ "ISDN_CMD_SETL2: invalid channel (%d)\n", ch);
return -EINVAL;
}
-
- if (!gigaset_add_event(cs, &cs->bcs[cntrl->arg & 0xff].at_state,
- EV_PROTO_L2, NULL, cntrl->arg >> 8,
- NULL)) {
- //FIXME what should we do?
- return -ENOMEM;
+ bcs = cs->bcs + ch;
+ if (bcs->chstate & CHS_D_UP) {
+ dev_err(cs->dev,
+ "ISDN_CMD_SETL2: channel active (%d)\n", ch);
+ return -EINVAL;
+ }
+ switch (cntrl->arg >> 8) {
+ case ISDN_PROTO_L2_HDLC:
+ gig_dbg(DEBUG_CMD, "ISDN_CMD_SETL2: setting L2_HDLC");
+ bcs->proto2 = L2_HDLC;
+ break;
+ case ISDN_PROTO_L2_TRANS:
+ gig_dbg(DEBUG_CMD, "ISDN_CMD_SETL2: setting L2_VOICE");
+ bcs->proto2 = L2_VOICE;
+ break;
+ default:
+ dev_err(cs->dev,
+ "ISDN_CMD_SETL2: unsupported protocol (%lu)\n",
+ cntrl->arg >> 8);
+ return -EINVAL;
}
-
- gig_dbg(DEBUG_CMD, "scheduling PROTO_L2");
- gigaset_schedule_event(cs);
break;
case ISDN_CMD_SETL3: /* Set L3 to given protocol */
- gig_dbg(DEBUG_ANY, "ISDN_CMD_SETL3 (ch: %ld, proto: %lx)",
- cntrl->arg & 0xff, (cntrl->arg >> 8));
-
- if ((cntrl->arg & 0xff) >= cs->channels) {
+ if (ch >= cs->channels) {
dev_err(cs->dev,
- "ISDN_CMD_SETL3: invalid channel (%d)\n",
- (int) cntrl->arg & 0xff);
+ "ISDN_CMD_SETL3: invalid channel (%d)\n", ch);
return -EINVAL;
}
if (cntrl->arg >> 8 != ISDN_PROTO_L3_TRANS) {
dev_err(cs->dev,
- "ISDN_CMD_SETL3: invalid protocol %lu\n",
+ "ISDN_CMD_SETL3: unsupported protocol (%lu)\n",
cntrl->arg >> 8);
return -EINVAL;
}
break;
case ISDN_CMD_PROCEED:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_PROCEED"); //FIXME
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_PROCEED");
break;
case ISDN_CMD_ALERT:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_ALERT"); //FIXME
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_ALERT");
if (cntrl->arg >= cs->channels) {
dev_err(cs->dev,
"ISDN_CMD_ALERT: invalid channel (%d)\n",
(int) cntrl->arg);
return -EINVAL;
}
- //bcs = cs->bcs + cntrl->arg;
- //bcs->proto2 = -1;
- // FIXME
break;
case ISDN_CMD_REDIR:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_REDIR"); //FIXME
+ gig_dbg(DEBUG_ANY, "ISDN_CMD_REDIR");
break;
case ISDN_CMD_PROT_IO:
gig_dbg(DEBUG_ANY, "ISDN_CMD_PROT_IO");
@@ -324,149 +433,34 @@ static int command_from_LL(isdn_ctrl *cntrl)
}
return retval;
+
+oom:
+ dev_err(bcs->cs->dev, "out of memory\n");
+ for (i = 0; i < AT_NUM; ++i)
+ kfree(commands[i]);
+ return -ENOMEM;
}
-void gigaset_i4l_cmd(struct cardstate *cs, int cmd)
+static void gigaset_i4l_cmd(struct cardstate *cs, int cmd)
{
+ isdn_if *iif = cs->iif;
isdn_ctrl command;
command.driver = cs->myid;
command.command = cmd;
command.arg = 0;
- cs->iif.statcallb(&command);
+ iif->statcallb(&command);
}
-void gigaset_i4l_channel_cmd(struct bc_state *bcs, int cmd)
+static void gigaset_i4l_channel_cmd(struct bc_state *bcs, int cmd)
{
+ isdn_if *iif = bcs->cs->iif;
isdn_ctrl command;
command.driver = bcs->cs->myid;
command.command = cmd;
command.arg = bcs->channel;
- bcs->cs->iif.statcallb(&command);
-}
-
-int gigaset_isdn_setup_dial(struct at_state_t *at_state, void *data)
-{
- struct bc_state *bcs = at_state->bcs;
- unsigned proto;
- const char *bc;
- size_t length[AT_NUM];
- size_t l;
- int i;
- struct setup_parm *sp = data;
-
- switch (bcs->proto2) {
- case ISDN_PROTO_L2_HDLC:
- proto = 1; /* 0: Bitsynchron, 1: HDLC, 2: voice */
- break;
- case ISDN_PROTO_L2_TRANS:
- proto = 2; /* 0: Bitsynchron, 1: HDLC, 2: voice */
- break;
- default:
- dev_err(bcs->cs->dev, "%s: invalid L2 protocol: %u\n",
- __func__, bcs->proto2);
- return -EINVAL;
- }
-
- switch (sp->si1) {
- case 1: /* audio */
- bc = "9090A3"; /* 3.1 kHz audio, A-law */
- break;
- case 7: /* data */
- default: /* hope the app knows what it is doing */
- bc = "8890"; /* unrestricted digital information */
- }
- //FIXME add missing si1 values from 1TR6, inspect si2, set HLC/LLC
-
- length[AT_DIAL ] = 1 + strlen(sp->phone) + 1 + 1;
- l = strlen(sp->eazmsn);
- length[AT_MSN ] = l ? 6 + l + 1 + 1 : 0;
- length[AT_BC ] = 5 + strlen(bc) + 1 + 1;
- length[AT_PROTO] = 6 + 1 + 1 + 1; /* proto: 1 character */
- length[AT_ISO ] = 6 + 1 + 1 + 1; /* channel: 1 character */
- length[AT_TYPE ] = 6 + 1 + 1 + 1; /* call type: 1 character */
- length[AT_HLC ] = 0;
-
- for (i = 0; i < AT_NUM; ++i) {
- kfree(bcs->commands[i]);
- bcs->commands[i] = NULL;
- if (length[i] &&
- !(bcs->commands[i] = kmalloc(length[i], GFP_ATOMIC))) {
- dev_err(bcs->cs->dev, "out of memory\n");
- return -ENOMEM;
- }
- }
-
- /* type = 1: extern, 0: intern, 2: recall, 3: door, 4: centrex */
- if (sp->phone[0] == '*' && sp->phone[1] == '*') {
- /* internal call: translate ** prefix to CTP value */
- snprintf(bcs->commands[AT_DIAL], length[AT_DIAL],
- "D%s\r", sp->phone+2);
- strncpy(bcs->commands[AT_TYPE], "^SCTP=0\r", length[AT_TYPE]);
- } else {
- snprintf(bcs->commands[AT_DIAL], length[AT_DIAL],
- "D%s\r", sp->phone);
- strncpy(bcs->commands[AT_TYPE], "^SCTP=1\r", length[AT_TYPE]);
- }
-
- if (bcs->commands[AT_MSN])
- snprintf(bcs->commands[AT_MSN], length[AT_MSN],
- "^SMSN=%s\r", sp->eazmsn);
- snprintf(bcs->commands[AT_BC ], length[AT_BC ],
- "^SBC=%s\r", bc);
- snprintf(bcs->commands[AT_PROTO], length[AT_PROTO],
- "^SBPR=%u\r", proto);
- snprintf(bcs->commands[AT_ISO ], length[AT_ISO ],
- "^SISO=%u\r", (unsigned)bcs->channel + 1);
-
- return 0;
-}
-
-int gigaset_isdn_setup_accept(struct at_state_t *at_state)
-{
- unsigned proto;
- size_t length[AT_NUM];
- int i;
- struct bc_state *bcs = at_state->bcs;
-
- switch (bcs->proto2) {
- case ISDN_PROTO_L2_HDLC:
- proto = 1; /* 0: Bitsynchron, 1: HDLC, 2: voice */
- break;
- case ISDN_PROTO_L2_TRANS:
- proto = 2; /* 0: Bitsynchron, 1: HDLC, 2: voice */
- break;
- default:
- dev_err(at_state->cs->dev, "%s: invalid protocol: %u\n",
- __func__, bcs->proto2);
- return -EINVAL;
- }
-
- length[AT_DIAL ] = 0;
- length[AT_MSN ] = 0;
- length[AT_BC ] = 0;
- length[AT_PROTO] = 6 + 1 + 1 + 1; /* proto: 1 character */
- length[AT_ISO ] = 6 + 1 + 1 + 1; /* channel: 1 character */
- length[AT_TYPE ] = 0;
- length[AT_HLC ] = 0;
-
- for (i = 0; i < AT_NUM; ++i) {
- kfree(bcs->commands[i]);
- bcs->commands[i] = NULL;
- if (length[i] &&
- !(bcs->commands[i] = kmalloc(length[i], GFP_ATOMIC))) {
- dev_err(at_state->cs->dev, "out of memory\n");
- return -ENOMEM;
- }
- }
-
- snprintf(bcs->commands[AT_PROTO], length[AT_PROTO],
- "^SBPR=%u\r", proto);
- snprintf(bcs->commands[AT_ISO ], length[AT_ISO ],
- "^SISO=%u\r", (unsigned) bcs->channel + 1);
-
- return 0;
+ iif->statcallb(&command);
}
/**
@@ -482,13 +476,14 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
{
struct cardstate *cs = at_state->cs;
struct bc_state *bcs = at_state->bcs;
+ isdn_if *iif = cs->iif;
isdn_ctrl response;
int retval;
/* fill ICALL structure */
response.parm.setup.si1 = 0; /* default: unknown */
response.parm.setup.si2 = 0;
- response.parm.setup.screen = 0; //FIXME how to set these?
+ response.parm.setup.screen = 0;
response.parm.setup.plan = 0;
if (!at_state->str_var[STR_ZBC]) {
/* no BC (internal call): assume speech, A-law */
@@ -509,29 +504,27 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
return ICALL_IGNORE;
}
if (at_state->str_var[STR_NMBR]) {
- strncpy(response.parm.setup.phone, at_state->str_var[STR_NMBR],
- sizeof response.parm.setup.phone - 1);
- response.parm.setup.phone[sizeof response.parm.setup.phone - 1] = 0;
+ strlcpy(response.parm.setup.phone, at_state->str_var[STR_NMBR],
+ sizeof response.parm.setup.phone);
} else
response.parm.setup.phone[0] = 0;
if (at_state->str_var[STR_ZCPN]) {
- strncpy(response.parm.setup.eazmsn, at_state->str_var[STR_ZCPN],
- sizeof response.parm.setup.eazmsn - 1);
- response.parm.setup.eazmsn[sizeof response.parm.setup.eazmsn - 1] = 0;
+ strlcpy(response.parm.setup.eazmsn, at_state->str_var[STR_ZCPN],
+ sizeof response.parm.setup.eazmsn);
} else
response.parm.setup.eazmsn[0] = 0;
if (!bcs) {
dev_notice(cs->dev, "no channel for incoming call\n");
response.command = ISDN_STAT_ICALLW;
- response.arg = 0; //FIXME
+ response.arg = 0;
} else {
gig_dbg(DEBUG_CMD, "Sending ICALL");
response.command = ISDN_STAT_ICALL;
- response.arg = bcs->channel; //FIXME
+ response.arg = bcs->channel;
}
response.driver = cs->myid;
- retval = cs->iif.statcallb(&response);
+ retval = iif->statcallb(&response);
gig_dbg(DEBUG_CMD, "Response: %d", retval);
switch (retval) {
case 0: /* no takers */
@@ -560,16 +553,109 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
}
}
-/* Set Callback function pointer */
-int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid)
+/**
+ * gigaset_isdn_connD() - signal D channel connect
+ * @bcs: B channel descriptor structure.
+ *
+ * Called by main module to notify the LL that the D channel connection has
+ * been established.
+ */
+void gigaset_isdn_connD(struct bc_state *bcs)
{
- isdn_if *iif = &cs->iif;
+ gig_dbg(DEBUG_CMD, "sending DCONN");
+ gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN);
+}
- gig_dbg(DEBUG_ANY, "Register driver capabilities to LL");
+/**
+ * gigaset_isdn_hupD() - signal D channel hangup
+ * @bcs: B channel descriptor structure.
+ *
+ * Called by main module to notify the LL that the D channel connection has
+ * been shut down.
+ */
+void gigaset_isdn_hupD(struct bc_state *bcs)
+{
+ gig_dbg(DEBUG_CMD, "sending DHUP");
+ gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DHUP);
+}
+
+/**
+ * gigaset_isdn_connB() - signal B channel connect
+ * @bcs: B channel descriptor structure.
+ *
+ * Called by main module to notify the LL that the B channel connection has
+ * been established.
+ */
+void gigaset_isdn_connB(struct bc_state *bcs)
+{
+ gig_dbg(DEBUG_CMD, "sending BCONN");
+ gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BCONN);
+}
+
+/**
+ * gigaset_isdn_hupB() - signal B channel hangup
+ * @bcs: B channel descriptor structure.
+ *
+ * Called by main module to notify the LL that the B channel connection has
+ * been shut down.
+ */
+void gigaset_isdn_hupB(struct bc_state *bcs)
+{
+ gig_dbg(DEBUG_CMD, "sending BHUP");
+ gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BHUP);
+}
+
+/**
+ * gigaset_isdn_start() - signal device availability
+ * @cs: device descriptor structure.
+ *
+ * Called by main module to notify the LL that the device is available for
+ * use.
+ */
+void gigaset_isdn_start(struct cardstate *cs)
+{
+ gig_dbg(DEBUG_CMD, "sending RUN");
+ gigaset_i4l_cmd(cs, ISDN_STAT_RUN);
+}
+
+/**
+ * gigaset_isdn_stop() - signal device unavailability
+ * @cs: device descriptor structure.
+ *
+ * Called by main module to notify the LL that the device is no longer
+ * available for use.
+ */
+void gigaset_isdn_stop(struct cardstate *cs)
+{
+ gig_dbg(DEBUG_CMD, "sending STOP");
+ gigaset_i4l_cmd(cs, ISDN_STAT_STOP);
+}
+
+/**
+ * gigaset_isdn_register() - register to LL
+ * @cs: device descriptor structure.
+ * @isdnid: device name.
+ *
+ * Called by main module to register the device with the LL.
+ *
+ * Return value: 1 for success, 0 for failure
+ */
+int gigaset_isdn_register(struct cardstate *cs, const char *isdnid)
+{
+ isdn_if *iif;
+
+ pr_info("ISDN4Linux interface\n");
+
+ iif = kmalloc(sizeof *iif, GFP_KERNEL);
+ if (!iif) {
+ pr_err("out of memory\n");
+ return 0;
+ }
if (snprintf(iif->id, sizeof iif->id, "%s_%u", isdnid, cs->minor_index)
>= sizeof iif->id) {
pr_err("ID too long: %s\n", isdnid);
+ kfree(iif);
return 0;
}
@@ -593,9 +679,26 @@ int gigaset_register_to_LL(struct cardstate *cs, const char *isdnid)
if (!register_isdn(iif)) {
pr_err("register_isdn failed\n");
+ kfree(iif);
return 0;
}
+ cs->iif = iif;
cs->myid = iif->channels; /* Set my device id */
+ cs->hw_hdr_len = HW_HDR_LEN;
return 1;
}
+
+/**
+ * gigaset_isdn_unregister() - unregister from LL
+ * @cs: device descriptor structure.
+ *
+ * Called by main module to unregister the device from the LL.
+ */
+void gigaset_isdn_unregister(struct cardstate *cs)
+{
+ gig_dbg(DEBUG_CMD, "sending UNLOAD");
+ gigaset_i4l_cmd(cs, ISDN_STAT_UNLOAD);
+ kfree(cs->iif);
+ cs->iif = NULL;
+}
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index 6a8e1384e7b..d2260b0055f 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -162,7 +162,7 @@ static int if_open(struct tty_struct *tty, struct file *filp)
return -ENODEV;
if (mutex_lock_interruptible(&cs->mutex))
- return -ERESTARTSYS; // FIXME -EINTR?
+ return -ERESTARTSYS;
tty->driver_data = cs;
++cs->open_count;
@@ -171,7 +171,7 @@ static int if_open(struct tty_struct *tty, struct file *filp)
spin_lock_irqsave(&cs->lock, flags);
cs->tty = tty;
spin_unlock_irqrestore(&cs->lock, flags);
- tty->low_latency = 1; //FIXME test
+ tty->low_latency = 1;
}
mutex_unlock(&cs->mutex);
@@ -228,7 +228,7 @@ static int if_ioctl(struct tty_struct *tty, struct file *file,
gig_dbg(DEBUG_IF, "%u: %s(0x%x)", cs->minor_index, __func__, cmd);
if (mutex_lock_interruptible(&cs->mutex))
- return -ERESTARTSYS; // FIXME -EINTR?
+ return -ERESTARTSYS;
if (!cs->connected) {
gig_dbg(DEBUG_IF, "not connected");
@@ -299,9 +299,8 @@ static int if_tiocmget(struct tty_struct *tty, struct file *file)
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
if (mutex_lock_interruptible(&cs->mutex))
- return -ERESTARTSYS; // FIXME -EINTR?
+ return -ERESTARTSYS;
- // FIXME read from device?
retval = cs->control_state & (TIOCM_RTS|TIOCM_DTR);
mutex_unlock(&cs->mutex);
@@ -326,7 +325,7 @@ static int if_tiocmset(struct tty_struct *tty, struct file *file,
cs->minor_index, __func__, set, clear);
if (mutex_lock_interruptible(&cs->mutex))
- return -ERESTARTSYS; // FIXME -EINTR?
+ return -ERESTARTSYS;
if (!cs->connected) {
gig_dbg(DEBUG_IF, "not connected");
@@ -356,7 +355,7 @@ static int if_write(struct tty_struct *tty, const unsigned char *buf, int count)
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
if (mutex_lock_interruptible(&cs->mutex))
- return -ERESTARTSYS; // FIXME -EINTR?
+ return -ERESTARTSYS;
if (!cs->connected) {
gig_dbg(DEBUG_IF, "not connected");
@@ -390,7 +389,7 @@ static int if_write_room(struct tty_struct *tty)
gig_dbg(DEBUG_IF, "%u: %s()", cs->minor_index, __func__);
if (mutex_lock_interruptible(&cs->mutex))
- return -ERESTARTSYS; // FIXME -EINTR?
+ return -ERESTARTSYS;
if (!cs->connected) {
gig_dbg(DEBUG_IF, "not connected");
@@ -455,9 +454,8 @@ static void if_throttle(struct tty_struct *tty)
gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */
else if (!cs->open_count)
dev_warn(cs->dev, "%s: device not opened\n", __func__);
- else {
- //FIXME
- }
+ else
+ gig_dbg(DEBUG_ANY, "%s: not implemented\n", __func__);
mutex_unlock(&cs->mutex);
}
@@ -480,9 +478,8 @@ static void if_unthrottle(struct tty_struct *tty)
gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */
else if (!cs->open_count)
dev_warn(cs->dev, "%s: device not opened\n", __func__);
- else {
- //FIXME
- }
+ else
+ gig_dbg(DEBUG_ANY, "%s: not implemented\n", __func__);
mutex_unlock(&cs->mutex);
}
@@ -515,10 +512,9 @@ static void if_set_termios(struct tty_struct *tty, struct ktermios *old)
goto out;
}
- // stolen from mct_u232.c
iflag = tty->termios->c_iflag;
cflag = tty->termios->c_cflag;
- old_cflag = old ? old->c_cflag : cflag; //FIXME?
+ old_cflag = old ? old->c_cflag : cflag;
gig_dbg(DEBUG_IF, "%u: iflag %x cflag %x old %x",
cs->minor_index, iflag, cflag, old_cflag);
@@ -588,7 +584,7 @@ void gigaset_if_init(struct cardstate *cs)
if (!drv->have_tty)
return;
- tasklet_init(&cs->if_wake_tasklet, &if_wake, (unsigned long) cs);
+ tasklet_init(&cs->if_wake_tasklet, if_wake, (unsigned long) cs);
mutex_lock(&cs->mutex);
cs->tty_dev = tty_register_device(drv->tty, cs->minor_index, NULL);
@@ -632,7 +628,8 @@ void gigaset_if_receive(struct cardstate *cs,
struct tty_struct *tty;
spin_lock_irqsave(&cs->lock, flags);
- if ((tty = cs->tty) == NULL)
+ tty = cs->tty;
+ if (tty == NULL)
gig_dbg(DEBUG_ANY, "receive on closed device");
else {
tty_buffer_request_room(tty, len);
@@ -659,9 +656,9 @@ void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
drv->have_tty = 0;
- if ((drv->tty = alloc_tty_driver(minors)) == NULL)
+ drv->tty = tty = alloc_tty_driver(minors);
+ if (tty == NULL)
goto enomem;
- tty = drv->tty;
tty->magic = TTY_DRIVER_MAGIC,
tty->major = GIG_MAJOR,
@@ -676,8 +673,8 @@ void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
tty->owner = THIS_MODULE;
- tty->init_termios = tty_std_termios; //FIXME
- tty->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; //FIXME
+ tty->init_termios = tty_std_termios;
+ tty->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
tty_set_operations(tty, &if_ops);
ret = tty_register_driver(tty);
diff --git a/drivers/isdn/gigaset/isocdata.c b/drivers/isdn/gigaset/isocdata.c
index 9f3ef7b4248..85394a6ebae 100644
--- a/drivers/isdn/gigaset/isocdata.c
+++ b/drivers/isdn/gigaset/isocdata.c
@@ -41,7 +41,8 @@ static inline int isowbuf_freebytes(struct isowbuf_t *iwb)
read = iwb->read;
write = iwb->write;
- if ((freebytes = read - write) > 0) {
+ freebytes = read - write;
+ if (freebytes > 0) {
/* no wraparound: need padding space within regular area */
return freebytes - BAS_OUTBUFPAD;
} else if (read < BAS_OUTBUFPAD) {
@@ -53,29 +54,6 @@ static inline int isowbuf_freebytes(struct isowbuf_t *iwb)
}
}
-/* compare two offsets within the buffer
- * The buffer is seen as circular, with the read position as start
- * returns -1/0/1 if position a </=/> position b without crossing 'read'
- */
-static inline int isowbuf_poscmp(struct isowbuf_t *iwb, int a, int b)
-{
- int read;
- if (a == b)
- return 0;
- read = iwb->read;
- if (a < b) {
- if (a < read && read <= b)
- return +1;
- else
- return -1;
- } else {
- if (b < read && read <= a)
- return -1;
- else
- return +1;
- }
-}
-
/* start writing
* acquire the write semaphore
* return true if acquired, false if busy
@@ -271,7 +249,7 @@ static inline void dump_bytes(enum debuglevel level, const char *tag,
* bit 14..13 = number of bits added by stuffing
*/
static const u16 stufftab[5 * 256] = {
-// previous 1s = 0:
+/* previous 1s = 0: */
0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f,
0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x201f,
0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x002f,
@@ -289,7 +267,7 @@ static const u16 stufftab[5 * 256] = {
0x0ce0, 0x0ce1, 0x0ce2, 0x0ce3, 0x0ce4, 0x0ce5, 0x0ce6, 0x0ce7, 0x0ce8, 0x0ce9, 0x0cea, 0x0ceb, 0x0cec, 0x0ced, 0x0cee, 0x0cef,
0x10f0, 0x10f1, 0x10f2, 0x10f3, 0x10f4, 0x10f5, 0x10f6, 0x10f7, 0x20f8, 0x20f9, 0x20fa, 0x20fb, 0x257c, 0x257d, 0x29be, 0x2ddf,
-// previous 1s = 1:
+/* previous 1s = 1: */
0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x200f,
0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x202f,
0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x204f,
@@ -307,7 +285,7 @@ static const u16 stufftab[5 * 256] = {
0x0ce0, 0x0ce1, 0x0ce2, 0x0ce3, 0x0ce4, 0x0ce5, 0x0ce6, 0x0ce7, 0x0ce8, 0x0ce9, 0x0cea, 0x0ceb, 0x0cec, 0x0ced, 0x0cee, 0x2dcf,
0x10f0, 0x10f1, 0x10f2, 0x10f3, 0x10f4, 0x10f5, 0x10f6, 0x10f7, 0x20f8, 0x20f9, 0x20fa, 0x20fb, 0x257c, 0x257d, 0x29be, 0x31ef,
-// previous 1s = 2:
+/* previous 1s = 2: */
0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x2007, 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x2017,
0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x2027, 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x2037,
0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x2047, 0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x2057,
@@ -325,7 +303,7 @@ static const u16 stufftab[5 * 256] = {
0x0ce0, 0x0ce1, 0x0ce2, 0x0ce3, 0x0ce4, 0x0ce5, 0x0ce6, 0x2dc7, 0x0ce8, 0x0ce9, 0x0cea, 0x0ceb, 0x0cec, 0x0ced, 0x0cee, 0x2dd7,
0x10f0, 0x10f1, 0x10f2, 0x10f3, 0x10f4, 0x10f5, 0x10f6, 0x31e7, 0x20f8, 0x20f9, 0x20fa, 0x20fb, 0x257c, 0x257d, 0x29be, 0x41f7,
-// previous 1s = 3:
+/* previous 1s = 3: */
0x0000, 0x0001, 0x0002, 0x2003, 0x0004, 0x0005, 0x0006, 0x200b, 0x0008, 0x0009, 0x000a, 0x2013, 0x000c, 0x000d, 0x000e, 0x201b,
0x0010, 0x0011, 0x0012, 0x2023, 0x0014, 0x0015, 0x0016, 0x202b, 0x0018, 0x0019, 0x001a, 0x2033, 0x001c, 0x001d, 0x001e, 0x203b,
0x0020, 0x0021, 0x0022, 0x2043, 0x0024, 0x0025, 0x0026, 0x204b, 0x0028, 0x0029, 0x002a, 0x2053, 0x002c, 0x002d, 0x002e, 0x205b,
@@ -343,7 +321,7 @@ static const u16 stufftab[5 * 256] = {
0x0ce0, 0x0ce1, 0x0ce2, 0x2dc3, 0x0ce4, 0x0ce5, 0x0ce6, 0x2dcb, 0x0ce8, 0x0ce9, 0x0cea, 0x2dd3, 0x0cec, 0x0ced, 0x0cee, 0x2ddb,
0x10f0, 0x10f1, 0x10f2, 0x31e3, 0x10f4, 0x10f5, 0x10f6, 0x31eb, 0x20f8, 0x20f9, 0x20fa, 0x41f3, 0x257c, 0x257d, 0x29be, 0x46fb,
-// previous 1s = 4:
+/* previous 1s = 4: */
0x0000, 0x2001, 0x0002, 0x2005, 0x0004, 0x2009, 0x0006, 0x200d, 0x0008, 0x2011, 0x000a, 0x2015, 0x000c, 0x2019, 0x000e, 0x201d,
0x0010, 0x2021, 0x0012, 0x2025, 0x0014, 0x2029, 0x0016, 0x202d, 0x0018, 0x2031, 0x001a, 0x2035, 0x001c, 0x2039, 0x001e, 0x203d,
0x0020, 0x2041, 0x0022, 0x2045, 0x0024, 0x2049, 0x0026, 0x204d, 0x0028, 0x2051, 0x002a, 0x2055, 0x002c, 0x2059, 0x002e, 0x205d,
@@ -367,7 +345,8 @@ static const u16 stufftab[5 * 256] = {
* parameters:
* cin input byte
* ones number of trailing '1' bits in result before this step
- * iwb pointer to output buffer structure (write semaphore must be held)
+ * iwb pointer to output buffer structure
+ * (write semaphore must be held)
* return value:
* number of trailing '1' bits in result after this step
*/
@@ -408,7 +387,8 @@ static inline int hdlc_bitstuff_byte(struct isowbuf_t *iwb, unsigned char cin,
* parameters:
* in input buffer
* count number of bytes in input buffer
- * iwb pointer to output buffer structure (write semaphore must be held)
+ * iwb pointer to output buffer structure
+ * (write semaphore must be held)
* return value:
* position of end of packet in output buffer on success,
* -EAGAIN if write semaphore busy or buffer full
@@ -440,7 +420,8 @@ static inline int hdlc_buildframe(struct isowbuf_t *iwb,
fcs = crc_ccitt_byte(fcs, c);
}
- /* bitstuff and append FCS (complemented, least significant byte first) */
+ /* bitstuff and append FCS
+ * (complemented, least significant byte first) */
fcs ^= 0xffff;
ones = hdlc_bitstuff_byte(iwb, fcs & 0x00ff, ones);
ones = hdlc_bitstuff_byte(iwb, (fcs >> 8) & 0x00ff, ones);
@@ -459,7 +440,8 @@ static inline int hdlc_buildframe(struct isowbuf_t *iwb,
* parameters:
* in input buffer
* count number of bytes in input buffer
- * iwb pointer to output buffer structure (write semaphore must be held)
+ * iwb pointer to output buffer structure
+ * (write semaphore must be held)
* return value:
* position of end of packet in output buffer on success,
* -EAGAIN if write semaphore busy or buffer full
@@ -500,7 +482,7 @@ int gigaset_isoc_buildframe(struct bc_state *bcs, unsigned char *in, int len)
int result;
switch (bcs->proto2) {
- case ISDN_PROTO_L2_HDLC:
+ case L2_HDLC:
result = hdlc_buildframe(bcs->hw.bas->isooutbuf, in, len);
gig_dbg(DEBUG_ISO, "%s: %d bytes HDLC -> %d",
__func__, len, result);
@@ -542,8 +524,9 @@ static inline void hdlc_flush(struct bc_state *bcs)
if (likely(bcs->skb != NULL))
skb_trim(bcs->skb, 0);
else if (!bcs->ignore) {
- if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
- skb_reserve(bcs->skb, HW_HDR_LEN);
+ bcs->skb = dev_alloc_skb(SBUFSIZE + bcs->cs->hw_hdr_len);
+ if (bcs->skb)
+ skb_reserve(bcs->skb, bcs->cs->hw_hdr_len);
else
dev_err(bcs->cs->dev, "could not allocate skb\n");
}
@@ -557,43 +540,46 @@ static inline void hdlc_flush(struct bc_state *bcs)
*/
static inline void hdlc_done(struct bc_state *bcs)
{
+ struct cardstate *cs = bcs->cs;
struct sk_buff *procskb;
+ unsigned int len;
if (unlikely(bcs->ignore)) {
bcs->ignore--;
hdlc_flush(bcs);
return;
}
-
- if ((procskb = bcs->skb) == NULL) {
+ procskb = bcs->skb;
+ if (procskb == NULL) {
/* previous error */
gig_dbg(DEBUG_ISO, "%s: skb=NULL", __func__);
- gigaset_rcv_error(NULL, bcs->cs, bcs);
+ gigaset_isdn_rcv_err(bcs);
} else if (procskb->len < 2) {
- dev_notice(bcs->cs->dev, "received short frame (%d octets)\n",
+ dev_notice(cs->dev, "received short frame (%d octets)\n",
procskb->len);
bcs->hw.bas->runts++;
- gigaset_rcv_error(procskb, bcs->cs, bcs);
+ dev_kfree_skb_any(procskb);
+ gigaset_isdn_rcv_err(bcs);
} else if (bcs->fcs != PPP_GOODFCS) {
- dev_notice(bcs->cs->dev, "frame check error (0x%04x)\n",
- bcs->fcs);
+ dev_notice(cs->dev, "frame check error (0x%04x)\n", bcs->fcs);
bcs->hw.bas->fcserrs++;
- gigaset_rcv_error(procskb, bcs->cs, bcs);
+ dev_kfree_skb_any(procskb);
+ gigaset_isdn_rcv_err(bcs);
} else {
- procskb->len -= 2; /* subtract FCS */
- procskb->tail -= 2;
- gig_dbg(DEBUG_ISO, "%s: good frame (%d octets)",
- __func__, procskb->len);
+ len = procskb->len;
+ __skb_trim(procskb, len -= 2); /* subtract FCS */
+ gig_dbg(DEBUG_ISO, "%s: good frame (%d octets)", __func__, len);
dump_bytes(DEBUG_STREAM_DUMP,
- "rcv data", procskb->data, procskb->len);
- bcs->hw.bas->goodbytes += procskb->len;
- gigaset_rcv_skb(procskb, bcs->cs, bcs);
+ "rcv data", procskb->data, len);
+ bcs->hw.bas->goodbytes += len;
+ gigaset_skb_rcvd(bcs, procskb);
}
- if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
- skb_reserve(bcs->skb, HW_HDR_LEN);
+ bcs->skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len);
+ if (bcs->skb)
+ skb_reserve(bcs->skb, cs->hw_hdr_len);
else
- dev_err(bcs->cs->dev, "could not allocate skb\n");
+ dev_err(cs->dev, "could not allocate skb\n");
bcs->fcs = PPP_INITFCS;
}
@@ -610,12 +596,8 @@ static inline void hdlc_frag(struct bc_state *bcs, unsigned inbits)
dev_notice(bcs->cs->dev, "received partial byte (%d bits)\n", inbits);
bcs->hw.bas->alignerrs++;
- gigaset_rcv_error(bcs->skb, bcs->cs, bcs);
-
- if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
- skb_reserve(bcs->skb, HW_HDR_LEN);
- else
- dev_err(bcs->cs->dev, "could not allocate skb\n");
+ gigaset_isdn_rcv_err(bcs);
+ __skb_trim(bcs->skb, 0);
bcs->fcs = PPP_INITFCS;
}
@@ -646,10 +628,10 @@ static const unsigned char bitcounts[256] = {
};
/* hdlc_unpack
- * perform HDLC frame processing (bit unstuffing, flag detection, FCS calculation)
- * on a sequence of received data bytes (8 bits each, LSB first)
- * pass on successfully received, complete frames as SKBs via gigaset_rcv_skb
- * notify of errors via gigaset_rcv_error
+ * perform HDLC frame processing (bit unstuffing, flag detection, FCS
+ * calculation) on a sequence of received data bytes (8 bits each, LSB first)
+ * pass on successfully received, complete frames as SKBs via gigaset_skb_rcvd
+ * notify of errors via gigaset_isdn_rcv_err
* tally frames, errors etc. in BC structure counters
* parameters:
* src received data
@@ -665,9 +647,12 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count,
/* load previous state:
* inputstate = set of flag bits:
- * - INS_flag_hunt: no complete opening flag received since connection setup or last abort
- * - INS_have_data: at least one complete data byte received since last flag
- * seqlen = number of consecutive '1' bits in last 7 input stream bits (0..7)
+ * - INS_flag_hunt: no complete opening flag received since connection
+ * setup or last abort
+ * - INS_have_data: at least one complete data byte received since last
+ * flag
+ * seqlen = number of consecutive '1' bits in last 7 input stream bits
+ * (0..7)
* inbyte = accumulated partial data byte (if !INS_flag_hunt)
* inbits = number of valid bits in inbyte, starting at LSB (0..6)
*/
@@ -701,9 +686,11 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count,
inbyte = c >> (lead1 + 1);
inbits = 7 - lead1;
if (trail1 >= 8) {
- /* interior stuffing: omitting the MSB handles most cases */
+ /* interior stuffing:
+ * omitting the MSB handles most cases,
+ * correct the incorrectly handled
+ * cases individually */
inbits--;
- /* correct the incorrectly handled cases individually */
switch (c) {
case 0xbe:
inbyte = 0x3f;
@@ -729,13 +716,14 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count,
hdlc_flush(bcs);
inputstate |= INS_flag_hunt;
} else if (seqlen == 6) {
- /* closing flag, including (6 - lead1) '1's and one '0' from inbits */
+ /* closing flag, including (6 - lead1) '1's
+ * and one '0' from inbits */
if (inbits > 7 - lead1) {
hdlc_frag(bcs, inbits + lead1 - 7);
inputstate &= ~INS_have_data;
} else {
if (inbits < 7 - lead1)
- ubc->stolen0s ++;
+ ubc->stolen0s++;
if (inputstate & INS_have_data) {
hdlc_done(bcs);
inputstate &= ~INS_have_data;
@@ -744,7 +732,7 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count,
if (c == PPP_FLAG) {
/* complete flag, LSB overlaps preceding flag */
- ubc->shared0s ++;
+ ubc->shared0s++;
inbits = 0;
inbyte = 0;
} else if (trail1 != 7) {
@@ -752,9 +740,11 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count,
inbyte = c >> (lead1 + 1);
inbits = 7 - lead1;
if (trail1 >= 8) {
- /* interior stuffing: omitting the MSB handles most cases */
+ /* interior stuffing:
+ * omitting the MSB handles most cases,
+ * correct the incorrectly handled
+ * cases individually */
inbits--;
- /* correct the incorrectly handled cases individually */
switch (c) {
case 0xbe:
inbyte = 0x3f;
@@ -762,7 +752,8 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count,
}
}
} else {
- /* abort sequence follows, skb already empty anyway */
+ /* abort sequence follows,
+ * skb already empty anyway */
ubc->aborts++;
inputstate |= INS_flag_hunt;
}
@@ -787,14 +778,17 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count,
} else {
/* stuffed data */
if (trail1 < 7) { /* => seqlen == 5 */
- /* stuff bit at position lead1, no interior stuffing */
+ /* stuff bit at position lead1,
+ * no interior stuffing */
unsigned char mask = (1 << lead1) - 1;
c = (c & mask) | ((c & ~mask) >> 1);
inbyte |= c << inbits;
inbits += 7;
} else if (seqlen < 5) { /* trail1 >= 8 */
- /* interior stuffing: omitting the MSB handles most cases */
- /* correct the incorrectly handled cases individually */
+ /* interior stuffing:
+ * omitting the MSB handles most cases,
+ * correct the incorrectly handled
+ * cases individually */
switch (c) {
case 0xbe:
c = 0x7e;
@@ -804,8 +798,9 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count,
inbits += 7;
} else { /* seqlen == 5 && trail1 >= 8 */
- /* stuff bit at lead1 *and* interior stuffing */
- switch (c) { /* unstuff individually */
+ /* stuff bit at lead1 *and* interior
+ * stuffing -- unstuff individually */
+ switch (c) {
case 0x7d:
c = 0x3f;
break;
@@ -841,7 +836,7 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count,
}
/* trans_receive
- * pass on received USB frame transparently as SKB via gigaset_rcv_skb
+ * pass on received USB frame transparently as SKB via gigaset_skb_rcvd
* invert bytes
* tally frames, errors etc. in BC structure counters
* parameters:
@@ -852,6 +847,7 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count,
static inline void trans_receive(unsigned char *src, unsigned count,
struct bc_state *bcs)
{
+ struct cardstate *cs = bcs->cs;
struct sk_buff *skb;
int dobytes;
unsigned char *dst;
@@ -861,13 +857,14 @@ static inline void trans_receive(unsigned char *src, unsigned count,
hdlc_flush(bcs);
return;
}
- if (unlikely((skb = bcs->skb) == NULL)) {
- bcs->skb = skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN);
+ skb = bcs->skb;
+ if (unlikely(skb == NULL)) {
+ bcs->skb = skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len);
if (!skb) {
- dev_err(bcs->cs->dev, "could not allocate skb\n");
+ dev_err(cs->dev, "could not allocate skb\n");
return;
}
- skb_reserve(skb, HW_HDR_LEN);
+ skb_reserve(skb, cs->hw_hdr_len);
}
bcs->hw.bas->goodbytes += skb->len;
dobytes = TRANSBUFSIZE - skb->len;
@@ -881,23 +878,24 @@ static inline void trans_receive(unsigned char *src, unsigned count,
if (dobytes == 0) {
dump_bytes(DEBUG_STREAM_DUMP,
"rcv data", skb->data, skb->len);
- gigaset_rcv_skb(skb, bcs->cs, bcs);
- bcs->skb = skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN);
+ gigaset_skb_rcvd(bcs, skb);
+ bcs->skb = skb =
+ dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len);
if (!skb) {
- dev_err(bcs->cs->dev,
- "could not allocate skb\n");
+ dev_err(cs->dev, "could not allocate skb\n");
return;
}
- skb_reserve(bcs->skb, HW_HDR_LEN);
+ skb_reserve(skb, cs->hw_hdr_len);
dobytes = TRANSBUFSIZE;
}
}
}
-void gigaset_isoc_receive(unsigned char *src, unsigned count, struct bc_state *bcs)
+void gigaset_isoc_receive(unsigned char *src, unsigned count,
+ struct bc_state *bcs)
{
switch (bcs->proto2) {
- case ISDN_PROTO_L2_HDLC:
+ case L2_HDLC:
hdlc_unpack(src, count, bcs);
break;
default: /* assume transparent */
@@ -981,8 +979,10 @@ void gigaset_isoc_input(struct inbuf_t *inbuf)
* @bcs: B channel descriptor structure.
* @skb: data to send.
*
- * Called by i4l.c to queue an skb for sending, and start transmission if
+ * Called by LL to queue an skb for sending, and start transmission if
* necessary.
+ * Once the payload data has been transmitted completely, gigaset_skb_sent()
+ * will be called with the skb's link layer header preserved.
*
* Return value:
* number of bytes accepted for sending (skb->len) if ok,
diff --git a/drivers/isdn/gigaset/proc.c b/drivers/isdn/gigaset/proc.c
index 9715aad9c3f..758a00c1d2e 100644
--- a/drivers/isdn/gigaset/proc.c
+++ b/drivers/isdn/gigaset/proc.c
@@ -39,7 +39,7 @@ static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr,
return -EINVAL;
if (mutex_lock_interruptible(&cs->mutex))
- return -ERESTARTSYS; // FIXME -EINTR?
+ return -ERESTARTSYS;
cs->waiting = 1;
if (!gigaset_add_event(cs, &cs->at_state, EV_PROC_CIDMODE,
diff --git a/drivers/isdn/gigaset/ser-gigaset.c b/drivers/isdn/gigaset/ser-gigaset.c
index 3071a52467e..168d585d64d 100644
--- a/drivers/isdn/gigaset/ser-gigaset.c
+++ b/drivers/isdn/gigaset/ser-gigaset.c
@@ -164,9 +164,15 @@ static void gigaset_modem_fill(unsigned long data)
{
struct cardstate *cs = (struct cardstate *) data;
struct bc_state *bcs;
+ struct sk_buff *nextskb;
int sent = 0;
- if (!cs || !(bcs = cs->bcs)) {
+ if (!cs) {
+ gig_dbg(DEBUG_OUTPUT, "%s: no cardstate", __func__);
+ return;
+ }
+ bcs = cs->bcs;
+ if (!bcs) {
gig_dbg(DEBUG_OUTPUT, "%s: no cardstate", __func__);
return;
}
@@ -179,9 +185,11 @@ static void gigaset_modem_fill(unsigned long data)
return;
/* no command to send; get skb */
- if (!(bcs->tx_skb = skb_dequeue(&bcs->squeue)))
+ nextskb = skb_dequeue(&bcs->squeue);
+ if (!nextskb)
/* no skb either, nothing to do */
return;
+ bcs->tx_skb = nextskb;
gig_dbg(DEBUG_INTR, "Dequeued skb (Adr: %lx)",
(unsigned long) bcs->tx_skb);
@@ -236,19 +244,20 @@ static void flush_send_queue(struct cardstate *cs)
* number of bytes queued, or error code < 0
*/
static int gigaset_write_cmd(struct cardstate *cs, const unsigned char *buf,
- int len, struct tasklet_struct *wake_tasklet)
+ int len, struct tasklet_struct *wake_tasklet)
{
struct cmdbuf_t *cb;
unsigned long flags;
gigaset_dbg_buffer(cs->mstate != MS_LOCKED ?
- DEBUG_TRANSCMD : DEBUG_LOCKCMD,
- "CMD Transmit", len, buf);
+ DEBUG_TRANSCMD : DEBUG_LOCKCMD,
+ "CMD Transmit", len, buf);
if (len <= 0)
return 0;
- if (!(cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC))) {
+ cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC);
+ if (!cb) {
dev_err(cs->dev, "%s: out of memory!\n", __func__);
return -ENOMEM;
}
@@ -392,7 +401,6 @@ static void gigaset_device_release(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
/* adapted from platform_device_release() in drivers/base/platform.c */
- //FIXME is this actually necessary?
kfree(dev->platform_data);
kfree(pdev->resource);
}
@@ -404,16 +412,20 @@ static void gigaset_device_release(struct device *dev)
static int gigaset_initcshw(struct cardstate *cs)
{
int rc;
+ struct ser_cardstate *scs;
- if (!(cs->hw.ser = kzalloc(sizeof(struct ser_cardstate), GFP_KERNEL))) {
+ scs = kzalloc(sizeof(struct ser_cardstate), GFP_KERNEL);
+ if (!scs) {
pr_err("out of memory\n");
return 0;
}
+ cs->hw.ser = scs;
cs->hw.ser->dev.name = GIGASET_MODULENAME;
cs->hw.ser->dev.id = cs->minor_index;
cs->hw.ser->dev.dev.release = gigaset_device_release;
- if ((rc = platform_device_register(&cs->hw.ser->dev)) != 0) {
+ rc = platform_device_register(&cs->hw.ser->dev);
+ if (rc != 0) {
pr_err("error %d registering platform device\n", rc);
kfree(cs->hw.ser);
cs->hw.ser = NULL;
@@ -422,7 +434,7 @@ static int gigaset_initcshw(struct cardstate *cs)
dev_set_drvdata(&cs->hw.ser->dev.dev, cs);
tasklet_init(&cs->write_tasklet,
- &gigaset_modem_fill, (unsigned long) cs);
+ gigaset_modem_fill, (unsigned long) cs);
return 1;
}
@@ -434,7 +446,8 @@ static int gigaset_initcshw(struct cardstate *cs)
* Called by "gigaset_start" and "gigaset_enterconfigmode" in common.c
* and by "if_lock" and "if_termios" in interface.c
*/
-static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state, unsigned new_state)
+static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
+ unsigned new_state)
{
struct tty_struct *tty = cs->hw.ser->tty;
unsigned int set, clear;
@@ -520,8 +533,8 @@ gigaset_tty_open(struct tty_struct *tty)
}
/* allocate memory for our device state and intialize it */
- if (!(cs = gigaset_initcs(driver, 1, 1, 0, cidmode,
- GIGASET_MODULENAME)))
+ cs = gigaset_initcs(driver, 1, 1, 0, cidmode, GIGASET_MODULENAME);
+ if (!cs)
goto error;
cs->dev = &cs->hw.ser->dev.dev;
@@ -690,7 +703,8 @@ gigaset_tty_receive(struct tty_struct *tty, const unsigned char *buf,
if (!cs)
return;
- if (!(inbuf = cs->inbuf)) {
+ inbuf = cs->inbuf;
+ if (!inbuf) {
dev_err(cs->dev, "%s: no inbuf\n", __func__);
cs_put(cs);
return;
@@ -770,18 +784,21 @@ static int __init ser_gigaset_init(void)
int rc;
gig_dbg(DEBUG_INIT, "%s", __func__);
- if ((rc = platform_driver_register(&device_driver)) != 0) {
+ rc = platform_driver_register(&device_driver);
+ if (rc != 0) {
pr_err("error %d registering platform driver\n", rc);
return rc;
}
/* allocate memory for our driver state and intialize it */
- if (!(driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
+ driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
GIGASET_MODULENAME, GIGASET_DEVNAME,
- &ops, THIS_MODULE)))
+ &ops, THIS_MODULE);
+ if (!driver)
goto error;
- if ((rc = tty_register_ldisc(N_GIGASET_M101, &gigaset_ldisc)) != 0) {
+ rc = tty_register_ldisc(N_GIGASET_M101, &gigaset_ldisc);
+ if (rc != 0) {
pr_err("error %d registering line discipline\n", rc);
goto error;
}
@@ -808,7 +825,8 @@ static void __exit ser_gigaset_exit(void)
driver = NULL;
}
- if ((rc = tty_unregister_ldisc(N_GIGASET_M101)) != 0)
+ rc = tty_unregister_ldisc(N_GIGASET_M101);
+ if (rc != 0)
pr_err("error %d unregistering line discipline\n", rc);
platform_driver_unregister(&device_driver);
diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c
index 4deb1ab0dbf..3ab1daeb276 100644
--- a/drivers/isdn/gigaset/usb-gigaset.c
+++ b/drivers/isdn/gigaset/usb-gigaset.c
@@ -43,14 +43,14 @@ MODULE_PARM_DESC(cidmode, "Call-ID mode");
#define GIGASET_MODULENAME "usb_gigaset"
#define GIGASET_DEVNAME "ttyGU"
-#define IF_WRITEBUF 2000 //FIXME // WAKEUP_CHARS: 256
+#define IF_WRITEBUF 2000 /* arbitrary limit */
/* Values for the Gigaset M105 Data */
#define USB_M105_VENDOR_ID 0x0681
#define USB_M105_PRODUCT_ID 0x0009
/* table of devices that work with this driver */
-static const struct usb_device_id gigaset_table [] = {
+static const struct usb_device_id gigaset_table[] = {
{ USB_DEVICE(USB_M105_VENDOR_ID, USB_M105_PRODUCT_ID) },
{ } /* Terminating entry */
};
@@ -97,8 +97,8 @@ MODULE_DEVICE_TABLE(usb, gigaset_table);
* 41 19 -- -- -- -- 06 00 00 00 00 xx 11 13
* Used after every "configuration sequence" (RQ 12, RQs 01/03/13).
* xx is usually 0x00 but was 0x7e before starting data transfer
- * in unimodem mode. So, this might be an array of characters that need
- * special treatment ("commit all bufferd data"?), 11=^Q, 13=^S.
+ * in unimodem mode. So, this might be an array of characters that
+ * need special treatment ("commit all bufferd data"?), 11=^Q, 13=^S.
*
* Unimodem mode: use "modprobe ppp_async flag_time=0" as the device _needs_ two
* flags per packet.
@@ -114,7 +114,7 @@ static int gigaset_suspend(struct usb_interface *intf, pm_message_t message);
static int gigaset_resume(struct usb_interface *intf);
static int gigaset_pre_reset(struct usb_interface *intf);
-static struct gigaset_driver *driver = NULL;
+static struct gigaset_driver *driver;
/* usb specific object needed to register this driver with the usb subsystem */
static struct usb_driver gigaset_usb_driver = {
@@ -141,6 +141,7 @@ struct usb_cardstate {
struct urb *bulk_out_urb;
/* Input buffer */
+ unsigned char *rcvbuf;
int rcvbuf_size;
struct urb *read_urb;
__u8 int_in_endpointAddr;
@@ -164,13 +165,11 @@ static int gigaset_set_modem_ctrl(struct cardstate *cs, unsigned old_state,
val = tiocm_to_gigaset(new_state);
gig_dbg(DEBUG_USBREQ, "set flags 0x%02x with mask 0x%02x", val, mask);
- // don't use this in an interrupt/BH
r = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 7, 0x41,
(val & 0xff) | ((mask & 0xff) << 8), 0,
NULL, 0, 2000 /* timeout? */);
if (r < 0)
return r;
- //..
return 0;
}
@@ -220,7 +219,6 @@ static int gigaset_baud_rate(struct cardstate *cs, unsigned cflag)
cflag &= CBAUD;
switch (cflag) {
- //FIXME more values?
case B300: rate = 300; break;
case B600: rate = 600; break;
case B1200: rate = 1200; break;
@@ -273,7 +271,7 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
/* set the number of stop bits */
if (cflag & CSTOPB) {
if ((cflag & CSIZE) == CS5)
- val |= 1; /* 1.5 stop bits */ //FIXME is this okay?
+ val |= 1; /* 1.5 stop bits */
else
val |= 2; /* 2 stop bits */
}
@@ -282,7 +280,7 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
}
- /*================================================================================================================*/
+/*============================================================================*/
static int gigaset_init_bchannel(struct bc_state *bcs)
{
/* nothing to do for M10x */
@@ -344,7 +342,6 @@ static void gigaset_modem_fill(unsigned long data)
if (write_modem(cs) < 0) {
gig_dbg(DEBUG_OUTPUT,
"modem_fill: write_modem failed");
- // FIXME should we tell the LL?
again = 1; /* no callback will be called! */
}
}
@@ -356,8 +353,8 @@ static void gigaset_modem_fill(unsigned long data)
*/
static void gigaset_read_int_callback(struct urb *urb)
{
- struct inbuf_t *inbuf = urb->context;
- struct cardstate *cs = inbuf->cs;
+ struct cardstate *cs = urb->context;
+ struct inbuf_t *inbuf = cs->inbuf;
int status = urb->status;
int r;
unsigned numbytes;
@@ -368,7 +365,7 @@ static void gigaset_read_int_callback(struct urb *urb)
numbytes = urb->actual_length;
if (numbytes) {
- src = inbuf->rcvbuf;
+ src = cs->hw.usb->rcvbuf;
if (unlikely(*src))
dev_warn(cs->dev,
"%s: There was no leading 0, but 0x%02x!\n",
@@ -440,7 +437,7 @@ static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb)
struct cmdbuf_t *tcb;
unsigned long flags;
int count;
- int status = -ENOENT; // FIXME
+ int status = -ENOENT;
struct usb_cardstate *ucs = cs->hw.usb;
do {
@@ -480,7 +477,9 @@ static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb)
ucs->busy = 1;
spin_lock_irqsave(&cs->lock, flags);
- status = cs->connected ? usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC) : -ENODEV;
+ status = cs->connected ?
+ usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC) :
+ -ENODEV;
spin_unlock_irqrestore(&cs->lock, flags);
if (status) {
@@ -510,8 +509,8 @@ static int gigaset_write_cmd(struct cardstate *cs, const unsigned char *buf,
if (len <= 0)
return 0;
-
- if (!(cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC))) {
+ cb = kmalloc(sizeof(struct cmdbuf_t) + len, GFP_ATOMIC);
+ if (!cb) {
dev_err(cs->dev, "%s: out of memory\n", __func__);
return -ENOMEM;
}
@@ -615,7 +614,7 @@ static int gigaset_initcshw(struct cardstate *cs)
ucs->bulk_out_urb = NULL;
ucs->read_urb = NULL;
tasklet_init(&cs->write_tasklet,
- &gigaset_modem_fill, (unsigned long) cs);
+ gigaset_modem_fill, (unsigned long) cs);
return 1;
}
@@ -637,9 +636,7 @@ static int write_modem(struct cardstate *cs)
return -EINVAL;
}
- /* Copy data to bulk out buffer and // FIXME copying not necessary
- * transmit data
- */
+ /* Copy data to bulk out buffer and transmit data */
count = min(bcs->tx_skb->len, (unsigned) ucs->bulk_out_size);
skb_copy_from_linear_data(bcs->tx_skb, ucs->bulk_out_buffer, count);
skb_pull(bcs->tx_skb, count);
@@ -650,7 +647,8 @@ static int write_modem(struct cardstate *cs)
if (cs->connected) {
usb_fill_bulk_urb(ucs->bulk_out_urb, ucs->udev,
usb_sndbulkpipe(ucs->udev,
- ucs->bulk_out_endpointAddr & 0x0f),
+ ucs->bulk_out_endpointAddr &
+ 0x0f),
ucs->bulk_out_buffer, count,
gigaset_write_bulk_callback, cs);
ret = usb_submit_urb(ucs->bulk_out_urb, GFP_ATOMIC);
@@ -666,7 +664,7 @@ static int write_modem(struct cardstate *cs)
if (!bcs->tx_skb->len) {
/* skb sent completely */
- gigaset_skb_sent(bcs, bcs->tx_skb); //FIXME also, when ret<0?
+ gigaset_skb_sent(bcs, bcs->tx_skb);
gig_dbg(DEBUG_INTR, "kfree skb (Adr: %lx)!",
(unsigned long) bcs->tx_skb);
@@ -763,8 +761,8 @@ static int gigaset_probe(struct usb_interface *interface,
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
ucs->rcvbuf_size = buffer_size;
ucs->int_in_endpointAddr = endpoint->bEndpointAddress;
- cs->inbuf[0].rcvbuf = kmalloc(buffer_size, GFP_KERNEL);
- if (!cs->inbuf[0].rcvbuf) {
+ ucs->rcvbuf = kmalloc(buffer_size, GFP_KERNEL);
+ if (!ucs->rcvbuf) {
dev_err(cs->dev, "Couldn't allocate rcvbuf\n");
retval = -ENOMEM;
goto error;
@@ -773,9 +771,9 @@ static int gigaset_probe(struct usb_interface *interface,
usb_fill_int_urb(ucs->read_urb, udev,
usb_rcvintpipe(udev,
endpoint->bEndpointAddress & 0x0f),
- cs->inbuf[0].rcvbuf, buffer_size,
+ ucs->rcvbuf, buffer_size,
gigaset_read_int_callback,
- cs->inbuf + 0, endpoint->bInterval);
+ cs, endpoint->bInterval);
retval = usb_submit_urb(ucs->read_urb, GFP_KERNEL);
if (retval) {
@@ -789,7 +787,7 @@ static int gigaset_probe(struct usb_interface *interface,
if (!gigaset_start(cs)) {
tasklet_kill(&cs->write_tasklet);
- retval = -ENODEV; //FIXME
+ retval = -ENODEV;
goto error;
}
return 0;
@@ -798,11 +796,11 @@ error:
usb_kill_urb(ucs->read_urb);
kfree(ucs->bulk_out_buffer);
usb_free_urb(ucs->bulk_out_urb);
- kfree(cs->inbuf[0].rcvbuf);
+ kfree(ucs->rcvbuf);
usb_free_urb(ucs->read_urb);
usb_set_intfdata(interface, NULL);
ucs->read_urb = ucs->bulk_out_urb = NULL;
- cs->inbuf[0].rcvbuf = ucs->bulk_out_buffer = NULL;
+ ucs->rcvbuf = ucs->bulk_out_buffer = NULL;
usb_put_dev(ucs->udev);
ucs->udev = NULL;
ucs->interface = NULL;
@@ -831,10 +829,10 @@ static void gigaset_disconnect(struct usb_interface *interface)
kfree(ucs->bulk_out_buffer);
usb_free_urb(ucs->bulk_out_urb);
- kfree(cs->inbuf[0].rcvbuf);
+ kfree(ucs->rcvbuf);
usb_free_urb(ucs->read_urb);
ucs->read_urb = ucs->bulk_out_urb = NULL;
- cs->inbuf[0].rcvbuf = ucs->bulk_out_buffer = NULL;
+ ucs->rcvbuf = ucs->bulk_out_buffer = NULL;
usb_put_dev(ucs->udev);
ucs->interface = NULL;
@@ -916,9 +914,10 @@ static int __init usb_gigaset_init(void)
int result;
/* allocate memory for our driver state and intialize it */
- if ((driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
- GIGASET_MODULENAME, GIGASET_DEVNAME,
- &ops, THIS_MODULE)) == NULL)
+ driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
+ GIGASET_MODULENAME, GIGASET_DEVNAME,
+ &ops, THIS_MODULE);
+ if (driver == NULL)
goto error;
/* register this driver with the USB subsystem */
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-24 05:42:30 +0000