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path: root/drivers/isdn/gigaset/i4l.c
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Diffstat (limited to 'drivers/isdn/gigaset/i4l.c')
-rw-r--r--drivers/isdn/gigaset/i4l.c131
1 files changed, 61 insertions, 70 deletions
diff --git a/drivers/isdn/gigaset/i4l.c b/drivers/isdn/gigaset/i4l.c
index c129ee47a8f..2d75329007f 100644
--- a/drivers/isdn/gigaset/i4l.c
+++ b/drivers/isdn/gigaset/i4l.c
@@ -15,8 +15,12 @@
#include "gigaset.h"
#include <linux/isdnif.h>
+#include <linux/export.h>
+#define SBUFSIZE 4096 /* sk_buff payload size */
+#define TRANSBUFSIZE 768 /* bytes per skb for transparent receive */
#define HW_HDR_LEN 2 /* Header size used to store ack info */
+#define MAX_BUF_SIZE (SBUFSIZE - HW_HDR_LEN) /* max data packet from LL */
/* == Handling of I4L IO =====================================================*/
@@ -198,8 +202,6 @@ static int command_from_LL(isdn_ctrl *cntrl)
int i;
size_t l;
- gigaset_debugdrivers();
-
gig_dbg(DEBUG_CMD, "driver: %d, command: %d, arg: 0x%lx",
cntrl->driver, cntrl->command, cntrl->arg);
@@ -216,7 +218,7 @@ static int command_from_LL(isdn_ctrl *cntrl)
return -EINVAL;
case ISDN_CMD_DIAL:
- gig_dbg(DEBUG_ANY,
+ gig_dbg(DEBUG_CMD,
"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);
@@ -227,12 +229,21 @@ static int command_from_LL(isdn_ctrl *cntrl)
return -EINVAL;
}
bcs = cs->bcs + ch;
- if (!gigaset_get_channel(bcs)) {
+ if (gigaset_get_channel(bcs) < 0) {
dev_err(cs->dev, "ISDN_CMD_DIAL: channel not free\n");
return -EBUSY;
}
+ switch (bcs->proto2) {
+ case L2_HDLC:
+ bcs->rx_bufsize = SBUFSIZE;
+ break;
+ default: /* assume transparent */
+ bcs->rx_bufsize = TRANSBUFSIZE;
+ }
+ dev_kfree_skb(bcs->rx_skb);
+ gigaset_new_rx_skb(bcs);
- commands = kzalloc(AT_NUM*(sizeof *commands), GFP_ATOMIC);
+ 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");
@@ -250,7 +261,7 @@ static int command_from_LL(isdn_ctrl *cntrl)
if (!commands[AT_TYPE])
goto oom;
snprintf(commands[AT_DIAL], l,
- "D%s\r", cntrl->parm.setup.phone+2);
+ "D%s\r", cntrl->parm.setup.phone + 2);
} else {
commands[AT_TYPE] = kstrdup("^SCTP=1\r", GFP_ATOMIC);
if (!commands[AT_TYPE])
@@ -304,28 +315,33 @@ static int command_from_LL(isdn_ctrl *cntrl)
gigaset_free_channel(bcs);
return -ENOMEM;
}
-
- gig_dbg(DEBUG_CMD, "scheduling DIAL");
gigaset_schedule_event(cs);
break;
case ISDN_CMD_ACCEPTD:
+ gig_dbg(DEBUG_CMD, "ISDN_CMD_ACCEPTD");
if (ch >= cs->channels) {
dev_err(cs->dev,
"ISDN_CMD_ACCEPTD: invalid channel (%d)\n", ch);
return -EINVAL;
}
bcs = cs->bcs + ch;
+ switch (bcs->proto2) {
+ case L2_HDLC:
+ bcs->rx_bufsize = SBUFSIZE;
+ break;
+ default: /* assume transparent */
+ bcs->rx_bufsize = TRANSBUFSIZE;
+ }
+ dev_kfree_skb(bcs->rx_skb);
+ gigaset_new_rx_skb(bcs);
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:
- break;
case ISDN_CMD_HANGUP:
+ gig_dbg(DEBUG_CMD, "ISDN_CMD_HANGUP");
if (ch >= cs->channels) {
dev_err(cs->dev,
"ISDN_CMD_HANGUP: invalid channel (%d)\n", ch);
@@ -335,8 +351,6 @@ static int command_from_LL(isdn_ctrl *cntrl)
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;
@@ -376,6 +390,7 @@ static int command_from_LL(isdn_ctrl *cntrl)
}
break;
case ISDN_CMD_SETL3: /* Set L3 to given protocol */
+ gig_dbg(DEBUG_CMD, "ISDN_CMD_SETL3");
if (ch >= cs->channels) {
dev_err(cs->dev,
"ISDN_CMD_SETL3: invalid channel (%d)\n", ch);
@@ -390,44 +405,9 @@ static int command_from_LL(isdn_ctrl *cntrl)
}
break;
- case ISDN_CMD_PROCEED:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_PROCEED");
- break;
- case ISDN_CMD_ALERT:
- 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;
- }
- break;
- case ISDN_CMD_REDIR:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_REDIR");
- break;
- case ISDN_CMD_PROT_IO:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_PROT_IO");
- break;
- case ISDN_CMD_FAXCMD:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_FAXCMD");
- break;
- case ISDN_CMD_GETL2:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_GETL2");
- break;
- case ISDN_CMD_GETL3:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_GETL3");
- break;
- case ISDN_CMD_GETEAZ:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_GETEAZ");
- break;
- case ISDN_CMD_SETSIL:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_SETSIL");
- break;
- case ISDN_CMD_GETSIL:
- gig_dbg(DEBUG_ANY, "ISDN_CMD_GETSIL");
- break;
+
default:
- dev_err(cs->dev, "unknown command %d from LL\n",
+ gig_dbg(DEBUG_CMD, "unknown command %d from LL",
cntrl->command);
return -EINVAL;
}
@@ -438,6 +418,8 @@ oom:
dev_err(bcs->cs->dev, "out of memory\n");
for (i = 0; i < AT_NUM; ++i)
kfree(commands[i]);
+ kfree(commands);
+ gigaset_free_channel(bcs);
return -ENOMEM;
}
@@ -500,7 +482,7 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
response.parm.setup.si2 = 2;
} else {
dev_warn(cs->dev, "RING ignored - unsupported BC %s\n",
- at_state->str_var[STR_ZBC]);
+ at_state->str_var[STR_ZBC]);
return ICALL_IGNORE;
}
if (at_state->str_var[STR_NMBR]) {
@@ -536,7 +518,7 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
return ICALL_REJECT;
case 3: /* incomplete */
dev_warn(cs->dev,
- "LL requested unsupported feature: Incomplete Number\n");
+ "LL requested unsupported feature: Incomplete Number\n");
return ICALL_IGNORE;
case 4: /* proceeding */
/* Gigaset will send ALERTING anyway.
@@ -632,31 +614,27 @@ void gigaset_isdn_stop(struct cardstate *cs)
}
/**
- * gigaset_isdn_register() - register to LL
+ * gigaset_isdn_regdev() - 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
+ * Return value: 0 on success, error code < 0 on failure
*/
-int gigaset_isdn_register(struct cardstate *cs, const char *isdnid)
+int gigaset_isdn_regdev(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;
+ return -ENOMEM;
}
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;
+ return -EINVAL;
}
iif->owner = THIS_MODULE;
@@ -664,9 +642,7 @@ int gigaset_isdn_register(struct cardstate *cs, const char *isdnid)
iif->maxbufsize = MAX_BUF_SIZE;
iif->features = ISDN_FEATURE_L2_TRANS |
ISDN_FEATURE_L2_HDLC |
-#ifdef GIG_X75
ISDN_FEATURE_L2_X75I |
-#endif
ISDN_FEATURE_L3_TRANS |
ISDN_FEATURE_P_EURO;
iif->hl_hdrlen = HW_HDR_LEN; /* Area for storing ack */
@@ -680,25 +656,40 @@ int gigaset_isdn_register(struct cardstate *cs, const char *isdnid)
if (!register_isdn(iif)) {
pr_err("register_isdn failed\n");
kfree(iif);
- return 0;
+ return -EINVAL;
}
cs->iif = iif;
cs->myid = iif->channels; /* Set my device id */
cs->hw_hdr_len = HW_HDR_LEN;
- return 1;
+ return 0;
}
/**
- * gigaset_isdn_unregister() - unregister from LL
+ * gigaset_isdn_unregdev() - unregister device from LL
* @cs: device descriptor structure.
- *
- * Called by main module to unregister the device from the LL.
*/
-void gigaset_isdn_unregister(struct cardstate *cs)
+void gigaset_isdn_unregdev(struct cardstate *cs)
{
gig_dbg(DEBUG_CMD, "sending UNLOAD");
gigaset_i4l_cmd(cs, ISDN_STAT_UNLOAD);
kfree(cs->iif);
cs->iif = NULL;
}
+
+/**
+ * gigaset_isdn_regdrv() - register driver to LL
+ */
+void gigaset_isdn_regdrv(void)
+{
+ pr_info("ISDN4Linux interface\n");
+ /* nothing to do */
+}
+
+/**
+ * gigaset_isdn_unregdrv() - unregister driver from LL
+ */
+void gigaset_isdn_unregdrv(void)
+{
+ /* nothing to do */
+}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-20 16:53:51 +0000