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path: root/drivers/usb/serial/mos7840.c
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Diffstat (limited to 'drivers/usb/serial/mos7840.c')
-rw-r--r--drivers/usb/serial/mos7840.c1841
1 files changed, 766 insertions, 1075 deletions
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 09d82062b97..393be562d87 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -24,7 +24,6 @@
#include <linux/kernel.h>
#include <linux/errno.h>
-#include <linux/init.h>
#include <linux/slab.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
@@ -35,10 +34,6 @@
#include <linux/usb/serial.h>
#include <linux/uaccess.h>
-/*
- * Version Information
- */
-#define DRIVER_VERSION "1.3.1"
#define DRIVER_DESC "Moschip 7840/7820 USB Serial Driver"
/*
@@ -82,8 +77,7 @@
* Defines used for sending commands to port
*/
-#define WAIT_FOR_EVER (HZ * 0) /* timeout urb is wait for ever */
-#define MOS_WDR_TIMEOUT (HZ * 5) /* default urb timeout */
+#define MOS_WDR_TIMEOUT 5000 /* default urb timeout */
#define MOS_PORT1 0x0200
#define MOS_PORT2 0x0300
@@ -114,14 +108,33 @@
#define USB_VENDOR_ID_MOSCHIP 0x9710
#define MOSCHIP_DEVICE_ID_7840 0x7840
#define MOSCHIP_DEVICE_ID_7820 0x7820
+#define MOSCHIP_DEVICE_ID_7810 0x7810
/* The native component can have its vendor/device id's overridden
* in vendor-specific implementations. Such devices can be handled
- * by making a change here, in moschip_port_id_table, and in
- * moschip_id_table_combined
+ * by making a change here, in id_table.
*/
-#define USB_VENDOR_ID_BANDB 0x0856
-#define BANDB_DEVICE_ID_USOPTL4_4 0xAC44
-#define BANDB_DEVICE_ID_USOPTL4_2 0xAC42
+#define USB_VENDOR_ID_BANDB 0x0856
+#define BANDB_DEVICE_ID_USO9ML2_2 0xAC22
+#define BANDB_DEVICE_ID_USO9ML2_2P 0xBC00
+#define BANDB_DEVICE_ID_USO9ML2_4 0xAC24
+#define BANDB_DEVICE_ID_USO9ML2_4P 0xBC01
+#define BANDB_DEVICE_ID_US9ML2_2 0xAC29
+#define BANDB_DEVICE_ID_US9ML2_4 0xAC30
+#define BANDB_DEVICE_ID_USPTL4_2 0xAC31
+#define BANDB_DEVICE_ID_USPTL4_4 0xAC32
+#define BANDB_DEVICE_ID_USOPTL4_2 0xAC42
+#define BANDB_DEVICE_ID_USOPTL4_2P 0xBC02
+#define BANDB_DEVICE_ID_USOPTL4_4 0xAC44
+#define BANDB_DEVICE_ID_USOPTL4_4P 0xBC03
+#define BANDB_DEVICE_ID_USOPTL2_4 0xAC24
+
+/* This driver also supports
+ * ATEN UC2324 device using Moschip MCS7840
+ * ATEN UC2322 device using Moschip MCS7820
+ */
+#define USB_VENDOR_ID_ATENINTL 0x0557
+#define ATENINTL_DEVICE_ID_UC2324 0x2011
+#define ATENINTL_DEVICE_ID_UC2322 0x7820
/* Interrupt Routine Defines */
@@ -155,6 +168,7 @@
#define CLK_MULTI_REGISTER ((__u16)(0x02))
#define CLK_START_VALUE_REGISTER ((__u16)(0x03))
+#define GPIO_REGISTER ((__u16)(0x07))
#define SERIAL_LCR_DLAB ((__u16)(0x0080))
@@ -164,24 +178,37 @@
#define NUM_URBS 16 /* URB Count */
#define URB_TRANSFER_BUFFER_SIZE 32 /* URB Size */
+/* LED on/off milliseconds*/
+#define LED_ON_MS 500
+#define LED_OFF_MS 500
-static struct usb_device_id moschip_port_id_table[] = {
- {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)},
- {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2)},
- {} /* terminating entry */
+enum mos7840_flag {
+ MOS7840_FLAG_CTRL_BUSY,
+ MOS7840_FLAG_LED_BUSY,
};
-static __devinitdata struct usb_device_id moschip_id_table_combined[] = {
+static const struct usb_device_id id_table[] = {
{USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)},
{USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)},
- {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)},
+ {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7810)},
+ {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_2)},
+ {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_2P)},
+ {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_4)},
+ {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USO9ML2_4P)},
+ {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_US9ML2_2)},
+ {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_US9ML2_4)},
+ {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USPTL4_2)},
+ {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USPTL4_4)},
{USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2)},
+ {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_2P)},
+ {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4)},
+ {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL4_4P)},
+ {USB_DEVICE(USB_VENDOR_ID_BANDB, BANDB_DEVICE_ID_USOPTL2_4)},
+ {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2324)},
+ {USB_DEVICE(USB_VENDOR_ID_ATENINTL, ATENINTL_DEVICE_ID_UC2322)},
{} /* terminating entry */
};
-
-MODULE_DEVICE_TABLE(usb, moschip_id_table_combined);
+MODULE_DEVICE_TABLE(usb, id_table);
/* This structure holds all of the local port information */
@@ -189,16 +216,10 @@ struct moschip_port {
int port_num; /*Actual port number in the device(1,2,etc) */
struct urb *write_urb; /* write URB for this port */
struct urb *read_urb; /* read URB for this port */
- struct urb *int_urb;
__u8 shadowLCR; /* last LCR value received */
__u8 shadowMCR; /* last MCR value received */
char open;
char open_ports;
- char zombie;
- wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */
- wait_queue_head_t delta_msr_wait; /* for handling sleeping while waiting for msr change to happen */
- int delta_msr_cond;
- struct async_icount icount;
struct usb_serial_port *port; /* loop back to the owner of this object */
/* Offsets */
@@ -214,10 +235,17 @@ struct moschip_port {
spinlock_t pool_lock;
struct urb *write_urb_pool[NUM_URBS];
char busy[NUM_URBS];
-};
+ bool read_urb_busy;
+ /* For device(s) with LED indicator */
+ bool has_led;
+ struct timer_list led_timer1; /* Timer for LED on */
+ struct timer_list led_timer2; /* Timer for LED off */
+ struct urb *led_urb;
+ struct usb_ctrlrequest *led_dr;
-static int debug;
+ unsigned long flags;
+};
/*
* mos7840_set_reg_sync
@@ -230,7 +258,7 @@ static int mos7840_set_reg_sync(struct usb_serial_port *port, __u16 reg,
{
struct usb_device *dev = port->serial->dev;
val = val & 0x00ff;
- dbg("mos7840_set_reg_sync offset is %x, value %x\n", reg, val);
+ dev_dbg(&port->dev, "mos7840_set_reg_sync offset is %x, value %x\n", reg, val);
return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), MCS_WRREQ,
MCS_WR_RTYPE, val, reg, NULL, 0,
@@ -248,12 +276,19 @@ static int mos7840_get_reg_sync(struct usb_serial_port *port, __u16 reg,
{
struct usb_device *dev = port->serial->dev;
int ret = 0;
+ u8 *buf;
+
+ buf = kmalloc(VENDOR_READ_LENGTH, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
- MCS_RD_RTYPE, 0, reg, val, VENDOR_READ_LENGTH,
+ MCS_RD_RTYPE, 0, reg, buf, VENDOR_READ_LENGTH,
MOS_WDR_TIMEOUT);
- dbg("mos7840_get_reg_sync offset is %x, return val %x\n", reg, *val);
- *val = (*val) & 0x00ff;
+ *val = buf[0];
+ dev_dbg(&port->dev, "%s offset is %x, return val %x\n", __func__, reg, *val);
+
+ kfree(buf);
return ret;
}
@@ -272,23 +307,15 @@ static int mos7840_set_uart_reg(struct usb_serial_port *port, __u16 reg,
/* For the UART control registers, the application number need
to be Or'ed */
if (port->serial->num_ports == 4) {
- val |= (((__u16) port->number -
- (__u16) (port->serial->minor)) + 1) << 8;
- dbg("mos7840_set_uart_reg application number is %x\n", val);
+ val |= ((__u16)port->port_number + 1) << 8;
} else {
- if (((__u16) port->number - (__u16) (port->serial->minor)) == 0) {
- val |= (((__u16) port->number -
- (__u16) (port->serial->minor)) + 1) << 8;
- dbg("mos7840_set_uart_reg application number is %x\n",
- val);
+ if (port->port_number == 0) {
+ val |= ((__u16)port->port_number + 1) << 8;
} else {
- val |=
- (((__u16) port->number -
- (__u16) (port->serial->minor)) + 2) << 8;
- dbg("mos7840_set_uart_reg application number is %x\n",
- val);
+ val |= ((__u16)port->port_number + 2) << 8;
}
}
+ dev_dbg(&port->dev, "%s application number is %x\n", __func__, val);
return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), MCS_WRREQ,
MCS_WR_RTYPE, val, reg, NULL, 0,
MOS_WDR_TIMEOUT);
@@ -306,43 +333,39 @@ static int mos7840_get_uart_reg(struct usb_serial_port *port, __u16 reg,
struct usb_device *dev = port->serial->dev;
int ret = 0;
__u16 Wval;
+ u8 *buf;
+
+ buf = kmalloc(VENDOR_READ_LENGTH, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
- /* dbg("application number is %4x \n",
- (((__u16)port->number - (__u16)(port->serial->minor))+1)<<8); */
/* Wval is same as application number */
if (port->serial->num_ports == 4) {
- Wval =
- (((__u16) port->number - (__u16) (port->serial->minor)) +
- 1) << 8;
- dbg("mos7840_get_uart_reg application number is %x\n", Wval);
+ Wval = ((__u16)port->port_number + 1) << 8;
} else {
- if (((__u16) port->number - (__u16) (port->serial->minor)) == 0) {
- Wval = (((__u16) port->number -
- (__u16) (port->serial->minor)) + 1) << 8;
- dbg("mos7840_get_uart_reg application number is %x\n",
- Wval);
+ if (port->port_number == 0) {
+ Wval = ((__u16)port->port_number + 1) << 8;
} else {
- Wval = (((__u16) port->number -
- (__u16) (port->serial->minor)) + 2) << 8;
- dbg("mos7840_get_uart_reg application number is %x\n",
- Wval);
+ Wval = ((__u16)port->port_number + 2) << 8;
}
}
+ dev_dbg(&port->dev, "%s application number is %x\n", __func__, Wval);
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ,
- MCS_RD_RTYPE, Wval, reg, val, VENDOR_READ_LENGTH,
+ MCS_RD_RTYPE, Wval, reg, buf, VENDOR_READ_LENGTH,
MOS_WDR_TIMEOUT);
- *val = (*val) & 0x00ff;
+ *val = buf[0];
+
+ kfree(buf);
return ret;
}
-static void mos7840_dump_serial_port(struct moschip_port *mos7840_port)
+static void mos7840_dump_serial_port(struct usb_serial_port *port,
+ struct moschip_port *mos7840_port)
{
- dbg("***************************************\n");
- dbg("SpRegOffset is %2x\n", mos7840_port->SpRegOffset);
- dbg("ControlRegOffset is %2x \n", mos7840_port->ControlRegOffset);
- dbg("DCRRegOffset is %2x \n", mos7840_port->DcrRegOffset);
- dbg("***************************************\n");
+ dev_dbg(&port->dev, "SpRegOffset is %2x\n", mos7840_port->SpRegOffset);
+ dev_dbg(&port->dev, "ControlRegOffset is %2x\n", mos7840_port->ControlRegOffset);
+ dev_dbg(&port->dev, "DCRRegOffset is %2x\n", mos7840_port->DcrRegOffset);
}
@@ -371,29 +394,22 @@ static void mos7840_handle_new_msr(struct moschip_port *port, __u8 new_msr)
struct moschip_port *mos7840_port;
struct async_icount *icount;
mos7840_port = port;
- icount = &mos7840_port->icount;
if (new_msr &
(MOS_MSR_DELTA_CTS | MOS_MSR_DELTA_DSR | MOS_MSR_DELTA_RI |
MOS_MSR_DELTA_CD)) {
- icount = &mos7840_port->icount;
+ icount = &mos7840_port->port->icount;
/* update input line counters */
- if (new_msr & MOS_MSR_DELTA_CTS) {
+ if (new_msr & MOS_MSR_DELTA_CTS)
icount->cts++;
- smp_wmb();
- }
- if (new_msr & MOS_MSR_DELTA_DSR) {
+ if (new_msr & MOS_MSR_DELTA_DSR)
icount->dsr++;
- smp_wmb();
- }
- if (new_msr & MOS_MSR_DELTA_CD) {
+ if (new_msr & MOS_MSR_DELTA_CD)
icount->dcd++;
- smp_wmb();
- }
- if (new_msr & MOS_MSR_DELTA_RI) {
+ if (new_msr & MOS_MSR_DELTA_RI)
icount->rng++;
- smp_wmb();
- }
+
+ wake_up_interruptible(&port->port->port.delta_msr_wait);
}
}
@@ -401,8 +417,6 @@ static void mos7840_handle_new_lsr(struct moschip_port *port, __u8 new_lsr)
{
struct async_icount *icount;
- dbg("%s - %02x", __func__, new_lsr);
-
if (new_lsr & SERIAL_LSR_BI) {
/*
* Parity and Framing errors only count if they
@@ -413,23 +427,15 @@ static void mos7840_handle_new_lsr(struct moschip_port *port, __u8 new_lsr)
}
/* update input line counters */
- icount = &port->icount;
- if (new_lsr & SERIAL_LSR_BI) {
+ icount = &port->port->icount;
+ if (new_lsr & SERIAL_LSR_BI)
icount->brk++;
- smp_wmb();
- }
- if (new_lsr & SERIAL_LSR_OE) {
+ if (new_lsr & SERIAL_LSR_OE)
icount->overrun++;
- smp_wmb();
- }
- if (new_lsr & SERIAL_LSR_PE) {
+ if (new_lsr & SERIAL_LSR_PE)
icount->parity++;
- smp_wmb();
- }
- if (new_lsr & SERIAL_LSR_FE) {
+ if (new_lsr & SERIAL_LSR_FE)
icount->frame++;
- smp_wmb();
- }
}
/************************************************************************/
@@ -443,8 +449,8 @@ static void mos7840_control_callback(struct urb *urb)
{
unsigned char *data;
struct moschip_port *mos7840_port;
+ struct device *dev = &urb->dev->dev;
__u8 regval = 0x0;
- int result = 0;
int status = urb->status;
mos7840_port = urb->context;
@@ -457,36 +463,25 @@ static void mos7840_control_callback(struct urb *urb)
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
- dbg("%s - urb shutting down with status: %d", __func__,
- status);
- return;
+ dev_dbg(dev, "%s - urb shutting down with status: %d\n", __func__, status);
+ goto out;
default:
- dbg("%s - nonzero urb status received: %d", __func__,
- status);
- goto exit;
+ dev_dbg(dev, "%s - nonzero urb status received: %d\n", __func__, status);
+ goto out;
}
- dbg("%s urb buffer size is %d\n", __func__, urb->actual_length);
- dbg("%s mos7840_port->MsrLsr is %d port %d\n", __func__,
- mos7840_port->MsrLsr, mos7840_port->port_num);
+ dev_dbg(dev, "%s urb buffer size is %d\n", __func__, urb->actual_length);
+ dev_dbg(dev, "%s mos7840_port->MsrLsr is %d port %d\n", __func__,
+ mos7840_port->MsrLsr, mos7840_port->port_num);
data = urb->transfer_buffer;
regval = (__u8) data[0];
- dbg("%s data is %x\n", __func__, regval);
+ dev_dbg(dev, "%s data is %x\n", __func__, regval);
if (mos7840_port->MsrLsr == 0)
mos7840_handle_new_msr(mos7840_port, regval);
else if (mos7840_port->MsrLsr == 1)
mos7840_handle_new_lsr(mos7840_port, regval);
-
-exit:
- spin_lock(&mos7840_port->pool_lock);
- if (!mos7840_port->zombie)
- result = usb_submit_urb(mos7840_port->int_urb, GFP_ATOMIC);
- spin_unlock(&mos7840_port->pool_lock);
- if (result) {
- dev_err(&urb->dev->dev,
- "%s - Error %d submitting interrupt urb\n",
- __func__, result);
- }
+out:
+ clear_bit_unlock(MOS7840_FLAG_CTRL_BUSY, &mos7840_port->flags);
}
static int mos7840_get_reg(struct moschip_port *mcs, __u16 Wval, __u16 reg,
@@ -497,6 +492,9 @@ static int mos7840_get_reg(struct moschip_port *mcs, __u16 Wval, __u16 reg,
unsigned char *buffer = mcs->ctrl_buf;
int ret;
+ if (test_and_set_bit_lock(MOS7840_FLAG_CTRL_BUSY, &mcs->flags))
+ return -EBUSY;
+
dr->bRequestType = MCS_RD_RTYPE;
dr->bRequest = MCS_RDREQ;
dr->wValue = cpu_to_le16(Wval); /* 0 */
@@ -508,9 +506,87 @@ static int mos7840_get_reg(struct moschip_port *mcs, __u16 Wval, __u16 reg,
mos7840_control_callback, mcs);
mcs->control_urb->transfer_buffer_length = 2;
ret = usb_submit_urb(mcs->control_urb, GFP_ATOMIC);
+ if (ret)
+ clear_bit_unlock(MOS7840_FLAG_CTRL_BUSY, &mcs->flags);
+
return ret;
}
+static void mos7840_set_led_callback(struct urb *urb)
+{
+ switch (urb->status) {
+ case 0:
+ /* Success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* This urb is terminated, clean up */
+ dev_dbg(&urb->dev->dev, "%s - urb shutting down: %d\n",
+ __func__, urb->status);
+ break;
+ default:
+ dev_dbg(&urb->dev->dev, "%s - nonzero urb status: %d\n",
+ __func__, urb->status);
+ }
+}
+
+static void mos7840_set_led_async(struct moschip_port *mcs, __u16 wval,
+ __u16 reg)
+{
+ struct usb_device *dev = mcs->port->serial->dev;
+ struct usb_ctrlrequest *dr = mcs->led_dr;
+
+ dr->bRequestType = MCS_WR_RTYPE;
+ dr->bRequest = MCS_WRREQ;
+ dr->wValue = cpu_to_le16(wval);
+ dr->wIndex = cpu_to_le16(reg);
+ dr->wLength = cpu_to_le16(0);
+
+ usb_fill_control_urb(mcs->led_urb, dev, usb_sndctrlpipe(dev, 0),
+ (unsigned char *)dr, NULL, 0, mos7840_set_led_callback, NULL);
+
+ usb_submit_urb(mcs->led_urb, GFP_ATOMIC);
+}
+
+static void mos7840_set_led_sync(struct usb_serial_port *port, __u16 reg,
+ __u16 val)
+{
+ struct usb_device *dev = port->serial->dev;
+
+ usb_control_msg(dev, usb_sndctrlpipe(dev, 0), MCS_WRREQ, MCS_WR_RTYPE,
+ val, reg, NULL, 0, MOS_WDR_TIMEOUT);
+}
+
+static void mos7840_led_off(unsigned long arg)
+{
+ struct moschip_port *mcs = (struct moschip_port *) arg;
+
+ /* Turn off LED */
+ mos7840_set_led_async(mcs, 0x0300, MODEM_CONTROL_REGISTER);
+ mod_timer(&mcs->led_timer2,
+ jiffies + msecs_to_jiffies(LED_OFF_MS));
+}
+
+static void mos7840_led_flag_off(unsigned long arg)
+{
+ struct moschip_port *mcs = (struct moschip_port *) arg;
+
+ clear_bit_unlock(MOS7840_FLAG_LED_BUSY, &mcs->flags);
+}
+
+static void mos7840_led_activity(struct usb_serial_port *port)
+{
+ struct moschip_port *mos7840_port = usb_get_serial_port_data(port);
+
+ if (test_and_set_bit_lock(MOS7840_FLAG_LED_BUSY, &mos7840_port->flags))
+ return;
+
+ mos7840_set_led_async(mos7840_port, 0x0301, MODEM_CONTROL_REGISTER);
+ mod_timer(&mos7840_port->led_timer1,
+ jiffies + msecs_to_jiffies(LED_ON_MS));
+}
+
/*****************************************************************************
* mos7840_interrupt_callback
* this is the callback function for when we have received data on the
@@ -530,8 +606,6 @@ static void mos7840_interrupt_callback(struct urb *urb)
__u16 wval, wreg = 0;
int status = urb->status;
- dbg("%s", " : Entering\n");
-
switch (status) {
case 0:
/* success */
@@ -540,12 +614,12 @@ static void mos7840_interrupt_callback(struct urb *urb)
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
- dbg("%s - urb shutting down with status: %d", __func__,
- status);
+ dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n",
+ __func__, status);
return;
default:
- dbg("%s - nonzero urb status received: %d", __func__,
- status);
+ dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n",
+ __func__, status);
goto exit;
}
@@ -562,7 +636,7 @@ static void mos7840_interrupt_callback(struct urb *urb)
* Byte 5 FIFO status for both */
if (length && length > 5) {
- dbg("%s \n", "Wrong data !!!");
+ dev_dbg(&urb->dev->dev, "%s", "Wrong data !!!\n");
return;
}
@@ -574,34 +648,25 @@ static void mos7840_interrupt_callback(struct urb *urb)
for (i = 0; i < serial->num_ports; i++) {
mos7840_port = mos7840_get_port_private(serial->port[i]);
- wval =
- (((__u16) serial->port[i]->number -
- (__u16) (serial->minor)) + 1) << 8;
+ wval = ((__u16)serial->port[i]->port_number + 1) << 8;
if (mos7840_port->open) {
if (sp[i] & 0x01) {
- dbg("SP%d No Interrupt !!!\n", i);
+ dev_dbg(&urb->dev->dev, "SP%d No Interrupt !!!\n", i);
} else {
switch (sp[i] & 0x0f) {
case SERIAL_IIR_RLS:
- dbg("Serial Port %d: Receiver status error or ", i);
- dbg("address bit detected in 9-bit mode\n");
+ dev_dbg(&urb->dev->dev, "Serial Port %d: Receiver status error or \n", i);
+ dev_dbg(&urb->dev->dev, "address bit detected in 9-bit mode\n");
mos7840_port->MsrLsr = 1;
wreg = LINE_STATUS_REGISTER;
break;
case SERIAL_IIR_MS:
- dbg("Serial Port %d: Modem status change\n", i);
+ dev_dbg(&urb->dev->dev, "Serial Port %d: Modem status change\n", i);
mos7840_port->MsrLsr = 0;
wreg = MODEM_STATUS_REGISTER;
break;
}
- spin_lock(&mos7840_port->pool_lock);
- if (!mos7840_port->zombie) {
- rv = mos7840_get_reg(mos7840_port, wval, wreg, &Data);
- } else {
- spin_unlock(&mos7840_port->pool_lock);
- return;
- }
- spin_unlock(&mos7840_port->pool_lock);
+ rv = mos7840_get_reg(mos7840_port, wval, wreg, &Data);
}
}
}
@@ -621,11 +686,11 @@ static int mos7840_port_paranoia_check(struct usb_serial_port *port,
const char *function)
{
if (!port) {
- dbg("%s - port == NULL", function);
+ pr_debug("%s - port == NULL\n", function);
return -1;
}
if (!port->serial) {
- dbg("%s - port->serial == NULL", function);
+ pr_debug("%s - port->serial == NULL\n", function);
return -1;
}
@@ -637,11 +702,11 @@ static int mos7840_serial_paranoia_check(struct usb_serial *serial,
const char *function)
{
if (!serial) {
- dbg("%s - serial == NULL", function);
+ pr_debug("%s - serial == NULL\n", function);
return -1;
}
if (!serial->type) {
- dbg("%s - serial->type == NULL!", function);
+ pr_debug("%s - serial->type == NULL!\n", function);
return -1;
}
@@ -676,65 +741,56 @@ static void mos7840_bulk_in_callback(struct urb *urb)
struct usb_serial *serial;
struct usb_serial_port *port;
struct moschip_port *mos7840_port;
- struct tty_struct *tty;
int status = urb->status;
- if (status) {
- dbg("nonzero read bulk status received: %d", status);
+ mos7840_port = urb->context;
+ if (!mos7840_port)
return;
- }
- mos7840_port = urb->context;
- if (!mos7840_port) {
- dbg("%s", "NULL mos7840_port pointer \n");
+ if (status) {
+ dev_dbg(&urb->dev->dev, "nonzero read bulk status received: %d\n", status);
+ mos7840_port->read_urb_busy = false;
return;
}
- port = (struct usb_serial_port *)mos7840_port->port;
+ port = mos7840_port->port;
if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Port Paranoia failed \n");
+ mos7840_port->read_urb_busy = false;
return;
}
serial = mos7840_get_usb_serial(port, __func__);
if (!serial) {
- dbg("%s\n", "Bad serial pointer ");
+ mos7840_port->read_urb_busy = false;
return;
}
- dbg("%s\n", "Entering... \n");
-
data = urb->transfer_buffer;
-
- dbg("%s", "Entering ........... \n");
+ usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
if (urb->actual_length) {
- tty = mos7840_port->port->port.tty;
- if (tty) {
- tty_buffer_request_room(tty, urb->actual_length);
- tty_insert_flip_string(tty, data, urb->actual_length);
- dbg(" %s \n", data);
- tty_flip_buffer_push(tty);
- }
- mos7840_port->icount.rx += urb->actual_length;
- smp_wmb();
- dbg("mos7840_port->icount.rx is %d:\n",
- mos7840_port->icount.rx);
+ struct tty_port *tport = &mos7840_port->port->port;
+ tty_insert_flip_string(tport, data, urb->actual_length);
+ tty_flip_buffer_push(tport);
+ port->icount.rx += urb->actual_length;
+ dev_dbg(&port->dev, "icount.rx is %d:\n", port->icount.rx);
}
if (!mos7840_port->read_urb) {
- dbg("%s", "URB KILLED !!!\n");
+ dev_dbg(&port->dev, "%s", "URB KILLED !!!\n");
+ mos7840_port->read_urb_busy = false;
return;
}
+ if (mos7840_port->has_led)
+ mos7840_led_activity(port);
- mos7840_port->read_urb->dev = serial->dev;
-
+ mos7840_port->read_urb_busy = true;
retval = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC);
if (retval) {
- dbg(" usb_submit_urb(read bulk) failed, retval = %d",
- retval);
+ dev_dbg(&port->dev, "usb_submit_urb(read bulk) failed, retval = %d\n", retval);
+ mos7840_port->read_urb_busy = false;
}
}
@@ -747,11 +803,12 @@ static void mos7840_bulk_in_callback(struct urb *urb)
static void mos7840_bulk_out_data_callback(struct urb *urb)
{
struct moschip_port *mos7840_port;
- struct tty_struct *tty;
+ struct usb_serial_port *port;
int status = urb->status;
int i;
mos7840_port = urb->context;
+ port = mos7840_port->port;
spin_lock(&mos7840_port->pool_lock);
for (i = 0; i < NUM_URBS; i++) {
if (urb == mos7840_port->write_urb_pool[i]) {
@@ -762,39 +819,21 @@ static void mos7840_bulk_out_data_callback(struct urb *urb)
spin_unlock(&mos7840_port->pool_lock);
if (status) {
- dbg("nonzero write bulk status received:%d\n", status);
+ dev_dbg(&port->dev, "nonzero write bulk status received:%d\n", status);
return;
}
- if (mos7840_port_paranoia_check(mos7840_port->port, __func__)) {
- dbg("%s", "Port Paranoia failed \n");
+ if (mos7840_port_paranoia_check(port, __func__))
return;
- }
-
- dbg("%s \n", "Entering .........");
- tty = mos7840_port->port->port.tty;
-
- if (tty && mos7840_port->open)
- tty_wakeup(tty);
+ if (mos7840_port->open)
+ tty_port_tty_wakeup(&port->port);
}
/************************************************************************/
/* D R I V E R T T Y I N T E R F A C E F U N C T I O N S */
/************************************************************************/
-#ifdef MCSSerialProbe
-static int mos7840_serial_probe(struct usb_serial *serial,
- const struct usb_device_id *id)
-{
-
- /*need to implement the mode_reg reading and updating\
- structures usb_serial_ device_type\
- (i.e num_ports, num_bulkin,bulkout etc) */
- /* Also we can update the changes attach */
- return 1;
-}
-#endif
/*****************************************************************************
* mos7840_open
@@ -803,8 +842,7 @@ static int mos7840_serial_probe(struct usb_serial *serial,
* Otherwise we return a negative error number.
*****************************************************************************/
-static int mos7840_open(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port)
{
int response;
int j;
@@ -815,17 +853,13 @@ static int mos7840_open(struct tty_struct *tty,
struct moschip_port *mos7840_port;
struct moschip_port *port0;
- if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Port Paranoia failed \n");
+ if (mos7840_port_paranoia_check(port, __func__))
return -ENODEV;
- }
serial = port->serial;
- if (mos7840_serial_paranoia_check(serial, __func__)) {
- dbg("%s", "Serial Paranoia failed \n");
+ if (mos7840_serial_paranoia_check(serial, __func__))
return -ENODEV;
- }
mos7840_port = mos7840_get_port_private(port);
port0 = mos7840_get_port_private(serial->port[0]);
@@ -841,18 +875,14 @@ static int mos7840_open(struct tty_struct *tty,
for (j = 0; j < NUM_URBS; ++j) {
urb = usb_alloc_urb(0, GFP_KERNEL);
mos7840_port->write_urb_pool[j] = urb;
-
- if (urb == NULL) {
- err("No more urbs???");
+ if (!urb)
continue;
- }
urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE,
GFP_KERNEL);
if (!urb->transfer_buffer) {
usb_free_urb(urb);
mos7840_port->write_urb_pool[j] = NULL;
- err("%s-out of memory for urb buffers.", __func__);
continue;
}
}
@@ -874,21 +904,21 @@ static int mos7840_open(struct tty_struct *tty,
Data = 0x0;
status = mos7840_get_reg_sync(port, mos7840_port->SpRegOffset, &Data);
if (status < 0) {
- dbg("Reading Spreg failed\n");
- return -1;
+ dev_dbg(&port->dev, "Reading Spreg failed\n");
+ goto err;
}
Data |= 0x80;
status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data);
if (status < 0) {
- dbg("writing Spreg failed\n");
- return -1;
+ dev_dbg(&port->dev, "writing Spreg failed\n");
+ goto err;
}
Data &= ~0x80;
status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data);
if (status < 0) {
- dbg("writing Spreg failed\n");
- return -1;
+ dev_dbg(&port->dev, "writing Spreg failed\n");
+ goto err;
}
/* End of block to be checked */
@@ -896,16 +926,16 @@ static int mos7840_open(struct tty_struct *tty,
status = mos7840_get_reg_sync(port, mos7840_port->ControlRegOffset,
&Data);
if (status < 0) {
- dbg("Reading Controlreg failed\n");
- return -1;
+ dev_dbg(&port->dev, "Reading Controlreg failed\n");
+ goto err;
}
Data |= 0x08; /* Driver done bit */
Data |= 0x20; /* rx_disable */
status = mos7840_set_reg_sync(port,
mos7840_port->ControlRegOffset, Data);
if (status < 0) {
- dbg("writing Controlreg failed\n");
- return -1;
+ dev_dbg(&port->dev, "writing Controlreg failed\n");
+ goto err;
}
/* do register settings here */
/* Set all regs to the device default values. */
@@ -915,22 +945,22 @@ static int mos7840_open(struct tty_struct *tty,
Data = 0x00;
status = mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
if (status < 0) {
- dbg("disableing interrupts failed\n");
- return -1;
+ dev_dbg(&port->dev, "disabling interrupts failed\n");
+ goto err;
}
/* Set FIFO_CONTROL_REGISTER to the default value */
Data = 0x00;
status = mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
if (status < 0) {
- dbg("Writing FIFO_CONTROL_REGISTER failed\n");
- return -1;
+ dev_dbg(&port->dev, "Writing FIFO_CONTROL_REGISTER failed\n");
+ goto err;
}
Data = 0xcf;
status = mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data);
if (status < 0) {
- dbg("Writing FIFO_CONTROL_REGISTER failed\n");
- return -1;
+ dev_dbg(&port->dev, "Writing FIFO_CONTROL_REGISTER failed\n");
+ goto err;
}
Data = 0x03;
@@ -990,12 +1020,6 @@ static int mos7840_open(struct tty_struct *tty,
status = mos7840_set_reg_sync(port, mos7840_port->ControlRegOffset,
Data);
- /* force low_latency on so that our tty_push actually forces *
- * the data through,otherwise it is scheduled, and with *
- * high data rates (like with OHCI) data can get lost. */
- if (tty)
- tty->low_latency = 1;
-
/* Check to see if we've set up our endpoint info yet *
* (can't set it up in mos7840_startup as the structures *
* were not set up at that time.) */
@@ -1020,8 +1044,8 @@ static int mos7840_open(struct tty_struct *tty,
usb_submit_urb(serial->port[0]->interrupt_in_urb,
GFP_KERNEL);
if (response) {
- err("%s - Error %d submitting interrupt urb",
- __func__, response);
+ dev_err(&port->dev, "%s - Error %d submitting "
+ "interrupt urb\n", __func__, response);
}
}
@@ -1032,53 +1056,59 @@ static int mos7840_open(struct tty_struct *tty,
* (can't set it up in mos7840_startup as the *
* structures were not set up at that time.) */
- dbg("port number is %d \n", port->number);
- dbg("serial number is %d \n", port->serial->minor);
- dbg("Bulkin endpoint is %d \n", port->bulk_in_endpointAddress);
- dbg("BulkOut endpoint is %d \n", port->bulk_out_endpointAddress);
- dbg("Interrupt endpoint is %d \n", port->interrupt_in_endpointAddress);
- dbg("port's number in the device is %d\n", mos7840_port->port_num);
+ dev_dbg(&port->dev, "port number is %d\n", port->port_number);
+ dev_dbg(&port->dev, "minor number is %d\n", port->minor);
+ dev_dbg(&port->dev, "Bulkin endpoint is %d\n", port->bulk_in_endpointAddress);
+ dev_dbg(&port->dev, "BulkOut endpoint is %d\n", port->bulk_out_endpointAddress);
+ dev_dbg(&port->dev, "Interrupt endpoint is %d\n", port->interrupt_in_endpointAddress);
+ dev_dbg(&port->dev, "port's number in the device is %d\n", mos7840_port->port_num);
mos7840_port->read_urb = port->read_urb;
/* set up our bulk in urb */
+ if ((serial->num_ports == 2) && (((__u16)port->port_number % 2) != 0)) {
+ usb_fill_bulk_urb(mos7840_port->read_urb,
+ serial->dev,
+ usb_rcvbulkpipe(serial->dev,
+ (port->bulk_in_endpointAddress) + 2),
+ port->bulk_in_buffer,
+ mos7840_port->read_urb->transfer_buffer_length,
+ mos7840_bulk_in_callback, mos7840_port);
+ } else {
+ usb_fill_bulk_urb(mos7840_port->read_urb,
+ serial->dev,
+ usb_rcvbulkpipe(serial->dev,
+ port->bulk_in_endpointAddress),
+ port->bulk_in_buffer,
+ mos7840_port->read_urb->transfer_buffer_length,
+ mos7840_bulk_in_callback, mos7840_port);
+ }
- usb_fill_bulk_urb(mos7840_port->read_urb,
- serial->dev,
- usb_rcvbulkpipe(serial->dev,
- port->bulk_in_endpointAddress),
- port->bulk_in_buffer,
- mos7840_port->read_urb->transfer_buffer_length,
- mos7840_bulk_in_callback, mos7840_port);
-
- dbg("mos7840_open: bulkin endpoint is %d\n",
- port->bulk_in_endpointAddress);
+ dev_dbg(&port->dev, "%s: bulkin endpoint is %d\n", __func__, port->bulk_in_endpointAddress);
+ mos7840_port->read_urb_busy = true;
response = usb_submit_urb(mos7840_port->read_urb, GFP_KERNEL);
if (response) {
- err("%s - Error %d submitting control urb", __func__,
- response);
+ dev_err(&port->dev, "%s - Error %d submitting control urb\n",
+ __func__, response);
+ mos7840_port->read_urb_busy = false;
}
- /* initialize our wait queues */
- init_waitqueue_head(&mos7840_port->wait_chase);
- init_waitqueue_head(&mos7840_port->delta_msr_wait);
-
- /* initialize our icount structure */
- memset(&(mos7840_port->icount), 0x00, sizeof(mos7840_port->icount));
-
/* initialize our port settings */
/* Must set to enable ints! */
mos7840_port->shadowMCR = MCR_MASTER_IE;
/* send a open port command */
mos7840_port->open = 1;
/* mos7840_change_port_settings(mos7840_port,old_termios); */
- mos7840_port->icount.tx = 0;
- mos7840_port->icount.rx = 0;
-
- dbg("\n\nusb_serial serial:%p mos7840_port:%p\n usb_serial_port port:%p\n\n",
- serial, mos7840_port, port);
return 0;
-
+err:
+ for (j = 0; j < NUM_URBS; ++j) {
+ urb = mos7840_port->write_urb_pool[j];
+ if (!urb)
+ continue;
+ kfree(urb->transfer_buffer);
+ usb_free_urb(urb);
+ }
+ return status;
}
/*****************************************************************************
@@ -1099,77 +1129,32 @@ static int mos7840_chars_in_buffer(struct tty_struct *tty)
unsigned long flags;
struct moschip_port *mos7840_port;
- dbg("%s \n", " mos7840_chars_in_buffer:entering ...........");
-
- if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ if (mos7840_port_paranoia_check(port, __func__))
return 0;
- }
mos7840_port = mos7840_get_port_private(port);
- if (mos7840_port == NULL) {
- dbg("%s \n", "mos7840_break:leaving ...........");
+ if (mos7840_port == NULL)
return 0;
- }
spin_lock_irqsave(&mos7840_port->pool_lock, flags);
- for (i = 0; i < NUM_URBS; ++i)
- if (mos7840_port->busy[i])
- chars += URB_TRANSFER_BUFFER_SIZE;
+ for (i = 0; i < NUM_URBS; ++i) {
+ if (mos7840_port->busy[i]) {
+ struct urb *urb = mos7840_port->write_urb_pool[i];
+ chars += urb->transfer_buffer_length;
+ }
+ }
spin_unlock_irqrestore(&mos7840_port->pool_lock, flags);
- dbg("%s - returns %d", __func__, chars);
+ dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);
return chars;
}
-/************************************************************************
- *
- * mos7840_block_until_tx_empty
- *
- * This function will block the close until one of the following:
- * 1. TX count are 0
- * 2. The mos7840 has stopped
- * 3. A timeout of 3 seconds without activity has expired
- *
- ************************************************************************/
-static void mos7840_block_until_tx_empty(struct tty_struct *tty,
- struct moschip_port *mos7840_port)
-{
- int timeout = HZ / 10;
- int wait = 30;
- int count;
-
- while (1) {
-
- count = mos7840_chars_in_buffer(tty);
-
- /* Check for Buffer status */
- if (count <= 0)
- return;
-
- /* Block the thread for a while */
- interruptible_sleep_on_timeout(&mos7840_port->wait_chase,
- timeout);
-
- /* No activity.. count down section */
- wait--;
- if (wait == 0) {
- dbg("%s - TIMEOUT", __func__);
- return;
- } else {
- /* Reset timeout value back to seconds */
- wait = 30;
- }
- }
-}
-
/*****************************************************************************
* mos7840_close
* this function is called by the tty driver when a port is closed
*****************************************************************************/
-static void mos7840_close(struct tty_struct *tty,
- struct usb_serial_port *port, struct file *filp)
+static void mos7840_close(struct usb_serial_port *port)
{
struct usb_serial *serial;
struct moschip_port *mos7840_port;
@@ -1177,18 +1162,12 @@ static void mos7840_close(struct tty_struct *tty,
int j;
__u16 Data;
- dbg("%s\n", "mos7840_close:entering...");
-
- if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Port Paranoia failed \n");
+ if (mos7840_port_paranoia_check(port, __func__))
return;
- }
serial = mos7840_get_usb_serial(port, __func__);
- if (!serial) {
- dbg("%s", "Serial Paranoia failed \n");
+ if (!serial)
return;
- }
mos7840_port = mos7840_get_port_private(port);
port0 = mos7840_get_port_private(serial->port[0]);
@@ -1210,42 +1189,22 @@ static void mos7840_close(struct tty_struct *tty,
}
}
- if (serial->dev)
- /* flush and block until tx is empty */
- mos7840_block_until_tx_empty(tty, mos7840_port);
+ usb_kill_urb(mos7840_port->write_urb);
+ usb_kill_urb(mos7840_port->read_urb);
+ mos7840_port->read_urb_busy = false;
- /* While closing port, shutdown all bulk read, write *
- * and interrupt read if they exists */
- if (serial->dev) {
- if (mos7840_port->write_urb) {
- dbg("%s", "Shutdown bulk write\n");
- usb_kill_urb(mos7840_port->write_urb);
- }
- if (mos7840_port->read_urb) {
- dbg("%s", "Shutdown bulk read\n");
- usb_kill_urb(mos7840_port->read_urb);
- }
- if ((&mos7840_port->control_urb)) {
- dbg("%s", "Shutdown control read\n");
- /*/ usb_kill_urb (mos7840_port->control_urb); */
- }
- }
-/* if(mos7840_port->ctrl_buf != NULL) */
-/* kfree(mos7840_port->ctrl_buf); */
port0->open_ports--;
- dbg("mos7840_num_open_ports in close%d:in port%d\n",
- port0->open_ports, port->number);
+ dev_dbg(&port->dev, "%s in close%d\n", __func__, port0->open_ports);
if (port0->open_ports == 0) {
if (serial->port[0]->interrupt_in_urb) {
- dbg("%s", "Shutdown interrupt_in_urb\n");
+ dev_dbg(&port->dev, "Shutdown interrupt_in_urb\n");
usb_kill_urb(serial->port[0]->interrupt_in_urb);
}
}
if (mos7840_port->write_urb) {
/* if this urb had a transfer buffer already (old tx) free it */
- if (mos7840_port->write_urb->transfer_buffer != NULL)
- kfree(mos7840_port->write_urb->transfer_buffer);
+ kfree(mos7840_port->write_urb->transfer_buffer);
usb_free_urb(mos7840_port->write_urb);
}
@@ -1256,49 +1215,6 @@ static void mos7840_close(struct tty_struct *tty,
mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
mos7840_port->open = 0;
-
- dbg("%s \n", "Leaving ............");
-}
-
-/************************************************************************
- *
- * mos7840_block_until_chase_response
- *
- * This function will block the close until one of the following:
- * 1. Response to our Chase comes from mos7840
- * 2. A timeout of 10 seconds without activity has expired
- * (1K of mos7840 data @ 2400 baud ==> 4 sec to empty)
- *
- ************************************************************************/
-
-static void mos7840_block_until_chase_response(struct tty_struct *tty,
- struct moschip_port *mos7840_port)
-{
- int timeout = 1 * HZ;
- int wait = 10;
- int count;
-
- while (1) {
- count = mos7840_chars_in_buffer(tty);
-
- /* Check for Buffer status */
- if (count <= 0)
- return;
-
- /* Block the thread for a while */
- interruptible_sleep_on_timeout(&mos7840_port->wait_chase,
- timeout);
- /* No activity.. count down section */
- wait--;
- if (wait == 0) {
- dbg("%s - TIMEOUT", __func__);
- return;
- } else {
- /* Reset timeout value back to seconds */
- wait = 10;
- }
- }
-
}
/*****************************************************************************
@@ -1312,41 +1228,28 @@ static void mos7840_break(struct tty_struct *tty, int break_state)
struct usb_serial *serial;
struct moschip_port *mos7840_port;
- dbg("%s \n", "Entering ...........");
- dbg("mos7840_break: Start\n");
-
- if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Port Paranoia failed \n");
+ if (mos7840_port_paranoia_check(port, __func__))
return;
- }
serial = mos7840_get_usb_serial(port, __func__);
- if (!serial) {
- dbg("%s", "Serial Paranoia failed \n");
+ if (!serial)
return;
- }
mos7840_port = mos7840_get_port_private(port);
if (mos7840_port == NULL)
return;
- if (serial->dev)
- /* flush and block until tx is empty */
- mos7840_block_until_chase_response(tty, mos7840_port);
-
if (break_state == -1)
data = mos7840_port->shadowLCR | LCR_SET_BREAK;
else
data = mos7840_port->shadowLCR & ~LCR_SET_BREAK;
+ /* FIXME: no locking on shadowLCR anywhere in driver */
mos7840_port->shadowLCR = data;
- dbg("mcs7840_break mos7840_port->shadowLCR is %x\n",
- mos7840_port->shadowLCR);
+ dev_dbg(&port->dev, "%s mos7840_port->shadowLCR is %x\n", __func__, mos7840_port->shadowLCR);
mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER,
mos7840_port->shadowLCR);
-
- return;
}
/*****************************************************************************
@@ -1365,19 +1268,12 @@ static int mos7840_write_room(struct tty_struct *tty)
unsigned long flags;
struct moschip_port *mos7840_port;
- dbg("%s \n", " mos7840_write_room:entering ...........");
-
- if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
- dbg("%s \n", " mos7840_write_room:leaving ...........");
+ if (mos7840_port_paranoia_check(port, __func__))
return -1;
- }
mos7840_port = mos7840_get_port_private(port);
- if (mos7840_port == NULL) {
- dbg("%s \n", "mos7840_break:leaving ...........");
+ if (mos7840_port == NULL)
return -1;
- }
spin_lock_irqsave(&mos7840_port->pool_lock, flags);
for (i = 0; i < NUM_URBS; ++i) {
@@ -1387,7 +1283,7 @@ static int mos7840_write_room(struct tty_struct *tty)
spin_unlock_irqrestore(&mos7840_port->pool_lock, flags);
room = (room == 0) ? 0 : room - URB_TRANSFER_BUFFER_SIZE + 1;
- dbg("%s - returns %d", __func__, room);
+ dev_dbg(&mos7840_port->port->dev, "%s - returns %d\n", __func__, room);
return room;
}
@@ -1415,17 +1311,13 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
/* __u16 Data; */
const unsigned char *current_position = data;
unsigned char *data1;
- dbg("%s \n", "entering ...........");
- /* dbg("mos7840_write: mos7840_port->shadowLCR is %x\n",
- mos7840_port->shadowLCR); */
#ifdef NOTMOS7840
Data = 0x00;
status = mos7840_get_uart_reg(port, LINE_CONTROL_REGISTER, &Data);
mos7840_port->shadowLCR = Data;
- dbg("mos7840_write: LINE_CONTROL_REGISTER is %x\n", Data);
- dbg("mos7840_write: mos7840_port->shadowLCR is %x\n",
- mos7840_port->shadowLCR);
+ dev_dbg(&port->dev, "%s: LINE_CONTROL_REGISTER is %x\n", __func__, Data);
+ dev_dbg(&port->dev, "%s: mos7840_port->shadowLCR is %x\n", __func__, mos7840_port->shadowLCR);
/* Data = 0x03; */
/* status = mos7840_set_uart_reg(port,LINE_CONTROL_REGISTER,Data); */
@@ -1438,34 +1330,27 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
/* status = mos7840_set_uart_reg(port,DIVISOR_LATCH_LSB,Data); */
Data = 0x00;
status = mos7840_get_uart_reg(port, DIVISOR_LATCH_LSB, &Data);
- dbg("mos7840_write:DLL value is %x\n", Data);
+ dev_dbg(&port->dev, "%s: DLL value is %x\n", __func__, Data);
Data = 0x0;
status = mos7840_get_uart_reg(port, DIVISOR_LATCH_MSB, &Data);
- dbg("mos7840_write:DLM value is %x\n", Data);
+ dev_dbg(&port->dev, "%s: DLM value is %x\n", __func__, Data);
Data = Data & ~SERIAL_LCR_DLAB;
- dbg("mos7840_write: mos7840_port->shadowLCR is %x\n",
- mos7840_port->shadowLCR);
+ dev_dbg(&port->dev, "%s: mos7840_port->shadowLCR is %x\n", __func__, mos7840_port->shadowLCR);
status = mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, Data);
#endif
- if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Port Paranoia failed \n");
+ if (mos7840_port_paranoia_check(port, __func__))
return -1;
- }
serial = port->serial;
- if (mos7840_serial_paranoia_check(serial, __func__)) {
- dbg("%s", "Serial Paranoia failed \n");
+ if (mos7840_serial_paranoia_check(serial, __func__))
return -1;
- }
mos7840_port = mos7840_get_port_private(port);
- if (mos7840_port == NULL) {
- dbg("%s", "mos7840_port is NULL\n");
+ if (mos7840_port == NULL)
return -1;
- }
/* try to find a free urb in the list */
urb = NULL;
@@ -1475,56 +1360,65 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port,
if (!mos7840_port->busy[i]) {
mos7840_port->busy[i] = 1;
urb = mos7840_port->write_urb_pool[i];
- dbg("\nURB:%d", i);
+ dev_dbg(&port->dev, "URB:%d\n", i);
break;
}
}
spin_unlock_irqrestore(&mos7840_port->pool_lock, flags);
if (urb == NULL) {
- dbg("%s - no more free urbs", __func__);
+ dev_dbg(&port->dev, "%s - no more free urbs\n", __func__);
goto exit;
}
if (urb->transfer_buffer == NULL) {
urb->transfer_buffer =
kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL);
-
- if (urb->transfer_buffer == NULL) {
- err("%s no more kernel memory...", __func__);
+ if (!urb->transfer_buffer)
goto exit;
- }
}
transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE);
memcpy(urb->transfer_buffer, current_position, transfer_size);
/* fill urb with data and submit */
- usb_fill_bulk_urb(urb,
- serial->dev,
- usb_sndbulkpipe(serial->dev,
- port->bulk_out_endpointAddress),
- urb->transfer_buffer,
- transfer_size,
- mos7840_bulk_out_data_callback, mos7840_port);
+ if ((serial->num_ports == 2) && (((__u16)port->port_number % 2) != 0)) {
+ usb_fill_bulk_urb(urb,
+ serial->dev,
+ usb_sndbulkpipe(serial->dev,
+ (port->bulk_out_endpointAddress) + 2),
+ urb->transfer_buffer,
+ transfer_size,
+ mos7840_bulk_out_data_callback, mos7840_port);
+ } else {
+ usb_fill_bulk_urb(urb,
+ serial->dev,
+ usb_sndbulkpipe(serial->dev,
+ port->bulk_out_endpointAddress),
+ urb->transfer_buffer,
+ transfer_size,
+ mos7840_bulk_out_data_callback, mos7840_port);
+ }
data1 = urb->transfer_buffer;
- dbg("\nbulkout endpoint is %d", port->bulk_out_endpointAddress);
+ dev_dbg(&port->dev, "bulkout endpoint is %d\n", port->bulk_out_endpointAddress);
+
+ if (mos7840_port->has_led)
+ mos7840_led_activity(port);
/* send it down the pipe */
status = usb_submit_urb(urb, GFP_ATOMIC);
if (status) {
mos7840_port->busy[i] = 0;
- err("%s - usb_submit_urb(write bulk) failed with status = %d",
- __func__, status);
+ dev_err_console(port, "%s - usb_submit_urb(write bulk) failed "
+ "with status = %d\n", __func__, status);
bytes_sent = status;
goto exit;
}
bytes_sent = transfer_size;
- mos7840_port->icount.tx += transfer_size;
- smp_wmb();
- dbg("mos7840_port->icount.tx is %d:\n", mos7840_port->icount.tx);
+ port->icount.tx += transfer_size;
+ dev_dbg(&port->dev, "icount.tx is %d:\n", port->icount.tx);
exit:
return bytes_sent;
@@ -1542,12 +1436,8 @@ static void mos7840_throttle(struct tty_struct *tty)
struct moschip_port *mos7840_port;
int status;
- if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ if (mos7840_port_paranoia_check(port, __func__))
return;
- }
-
- dbg("- port %d\n", port->number);
mos7840_port = mos7840_get_port_private(port);
@@ -1555,12 +1445,10 @@ static void mos7840_throttle(struct tty_struct *tty)
return;
if (!mos7840_port->open) {
- dbg("%s\n", "port not opened");
+ dev_dbg(&port->dev, "%s", "port not opened\n");
return;
}
- dbg("%s", "Entering .......... \n");
-
/* if we are implementing XON/XOFF, send the stop character */
if (I_IXOFF(tty)) {
unsigned char stop_char = STOP_CHAR(tty);
@@ -1569,15 +1457,13 @@ static void mos7840_throttle(struct tty_struct *tty)
return;
}
/* if we are implementing RTS/CTS, toggle that line */
- if (tty->termios->c_cflag & CRTSCTS) {
+ if (tty->termios.c_cflag & CRTSCTS) {
mos7840_port->shadowMCR &= ~MCR_RTS;
status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER,
mos7840_port->shadowMCR);
if (status < 0)
return;
}
-
- return;
}
/*****************************************************************************
@@ -1592,21 +1478,17 @@ static void mos7840_unthrottle(struct tty_struct *tty)
int status;
struct moschip_port *mos7840_port = mos7840_get_port_private(port);
- if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ if (mos7840_port_paranoia_check(port, __func__))
return;
- }
if (mos7840_port == NULL)
return;
if (!mos7840_port->open) {
- dbg("%s - port not opened", __func__);
+ dev_dbg(&port->dev, "%s - port not opened\n", __func__);
return;
}
- dbg("%s", "Entering .......... \n");
-
/* if we are implementing XON/XOFF, send the start character */
if (I_IXOFF(tty)) {
unsigned char start_char = START_CHAR(tty);
@@ -1616,7 +1498,7 @@ static void mos7840_unthrottle(struct tty_struct *tty)
}
/* if we are implementing RTS/CTS, toggle that line */
- if (tty->termios->c_cflag & CRTSCTS) {
+ if (tty->termios.c_cflag & CRTSCTS) {
mos7840_port->shadowMCR |= MCR_RTS;
status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER,
mos7840_port->shadowMCR);
@@ -1625,7 +1507,7 @@ static void mos7840_unthrottle(struct tty_struct *tty)
}
}
-static int mos7840_tiocmget(struct tty_struct *tty, struct file *file)
+static int mos7840_tiocmget(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct moschip_port *mos7840_port;
@@ -1635,13 +1517,15 @@ static int mos7840_tiocmget(struct tty_struct *tty, struct file *file)
int status;
mos7840_port = mos7840_get_port_private(port);
- dbg("%s - port %d", __func__, port->number);
-
if (mos7840_port == NULL)
return -ENODEV;
status = mos7840_get_uart_reg(port, MODEM_STATUS_REGISTER, &msr);
+ if (status != 1)
+ return -EIO;
status = mos7840_get_uart_reg(port, MODEM_CONTROL_REGISTER, &mcr);
+ if (status != 1)
+ return -EIO;
result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0)
| ((mcr & MCR_RTS) ? TIOCM_RTS : 0)
| ((mcr & MCR_LOOPBACK) ? TIOCM_LOOP : 0)
@@ -1650,12 +1534,12 @@ static int mos7840_tiocmget(struct tty_struct *tty, struct file *file)
| ((msr & MOS7840_MSR_RI) ? TIOCM_RI : 0)
| ((msr & MOS7840_MSR_DSR) ? TIOCM_DSR : 0);
- dbg("%s - 0x%04X", __func__, result);
+ dev_dbg(&port->dev, "%s - 0x%04X\n", __func__, result);
return result;
}
-static int mos7840_tiocmset(struct tty_struct *tty, struct file *file,
+static int mos7840_tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear)
{
struct usb_serial_port *port = tty->driver_data;
@@ -1663,8 +1547,6 @@ static int mos7840_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int mcr;
int status;
- dbg("%s - port %d", __func__, port->number);
-
mos7840_port = mos7840_get_port_private(port);
if (mos7840_port == NULL)
@@ -1690,7 +1572,7 @@ static int mos7840_tiocmset(struct tty_struct *tty, struct file *file,
status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, mcr);
if (status < 0) {
- dbg("setting MODEM_CONTROL_REGISTER Failed\n");
+ dev_dbg(&port->dev, "setting MODEM_CONTROL_REGISTER Failed\n");
return status;
}
@@ -1702,11 +1584,11 @@ static int mos7840_tiocmset(struct tty_struct *tty, struct file *file,
* this function calculates the proper baud rate divisor for the specified
* baud rate.
*****************************************************************************/
-static int mos7840_calc_baud_rate_divisor(int baudRate, int *divisor,
+static int mos7840_calc_baud_rate_divisor(struct usb_serial_port *port,
+ int baudRate, int *divisor,
__u16 *clk_sel_val)
{
-
- dbg("%s - %d", __func__, baudRate);
+ dev_dbg(&port->dev, "%s - %d\n", __func__, baudRate);
if (baudRate <= 115200) {
*divisor = 115200 / baudRate;
@@ -1759,11 +1641,11 @@ static int mos7840_calc_baud_rate_divisor(int baudRate, int *divisor,
custom++;
*divisor = custom;
- dbg(" Baud %d = %d\n", baudrate, custom);
+ dev_dbg(&port->dev, " Baud %d = %d\n", baudrate, custom);
return 0;
}
- dbg("%s\n", " Baud calculation Failed...");
+ dev_dbg(&port->dev, "%s", " Baud calculation Failed...\n");
return -1;
#endif
}
@@ -1787,23 +1669,16 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
if (mos7840_port == NULL)
return -1;
- port = (struct usb_serial_port *)mos7840_port->port;
- if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ port = mos7840_port->port;
+ if (mos7840_port_paranoia_check(port, __func__))
return -1;
- }
- if (mos7840_serial_paranoia_check(port->serial, __func__)) {
- dbg("%s", "Invalid Serial \n");
+ if (mos7840_serial_paranoia_check(port->serial, __func__))
return -1;
- }
-
- dbg("%s", "Entering .......... \n");
- number = mos7840_port->port->number - mos7840_port->port->serial->minor;
+ number = mos7840_port->port->port_number;
- dbg("%s - port = %d, baud = %d", __func__,
- mos7840_port->port->number, baudRate);
+ dev_dbg(&port->dev, "%s - baud = %d\n", __func__, baudRate);
/* reset clk_uart_sel in spregOffset */
if (baudRate > 115200) {
#ifdef HW_flow_control
@@ -1814,20 +1689,20 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER,
Data);
if (status < 0) {
- dbg("Writing spreg failed in set_serial_baud\n");
+ dev_dbg(&port->dev, "Writing spreg failed in set_serial_baud\n");
return -1;
}
#endif
} else {
#ifdef HW_flow_control
- / *setting h/w flow control bit to 0 */
+ /* setting h/w flow control bit to 0 */
Data = 0xb;
mos7840_port->shadowMCR = Data;
status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER,
Data);
if (status < 0) {
- dbg("Writing spreg failed in set_serial_baud\n");
+ dev_dbg(&port->dev, "Writing spreg failed in set_serial_baud\n");
return -1;
}
#endif
@@ -1837,26 +1712,25 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
if (1) { /* baudRate <= 115200) */
clk_sel_val = 0x0;
Data = 0x0;
- status = mos7840_calc_baud_rate_divisor(baudRate, &divisor,
+ status = mos7840_calc_baud_rate_divisor(port, baudRate, &divisor,
&clk_sel_val);
status = mos7840_get_reg_sync(port, mos7840_port->SpRegOffset,
&Data);
if (status < 0) {
- dbg("reading spreg failed in set_serial_baud\n");
+ dev_dbg(&port->dev, "reading spreg failed in set_serial_baud\n");
return -1;
}
Data = (Data & 0x8f) | clk_sel_val;
status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset,
Data);
if (status < 0) {
- dbg("Writing spreg failed in set_serial_baud\n");
+ dev_dbg(&port->dev, "Writing spreg failed in set_serial_baud\n");
return -1;
}
/* Calculate the Divisor */
if (status) {
- err("%s - bad baud rate", __func__);
- dbg("%s\n", "bad baud rate");
+ dev_err(&port->dev, "%s - bad baud rate\n", __func__);
return status;
}
/* Enable access to divisor latch */
@@ -1866,11 +1740,11 @@ static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port,
/* Write the divisor */
Data = (unsigned char)(divisor & 0xff);
- dbg("set_serial_baud Value to write DLL is %x\n", Data);
+ dev_dbg(&port->dev, "set_serial_baud Value to write DLL is %x\n", Data);
mos7840_set_uart_reg(port, DIVISOR_LATCH_LSB, Data);
Data = (unsigned char)((divisor & 0xff00) >> 8);
- dbg("set_serial_baud Value to write DLM is %x\n", Data);
+ dev_dbg(&port->dev, "set_serial_baud Value to write DLM is %x\n", Data);
mos7840_set_uart_reg(port, DIVISOR_LATCH_MSB, Data);
/* Disable access to divisor latch */
@@ -1905,68 +1779,60 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
if (mos7840_port == NULL)
return;
- port = (struct usb_serial_port *)mos7840_port->port;
+ port = mos7840_port->port;
- if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ if (mos7840_port_paranoia_check(port, __func__))
return;
- }
- if (mos7840_serial_paranoia_check(port->serial, __func__)) {
- dbg("%s", "Invalid Serial \n");
+ if (mos7840_serial_paranoia_check(port->serial, __func__))
return;
- }
serial = port->serial;
- dbg("%s - port %d", __func__, mos7840_port->port->number);
-
if (!mos7840_port->open) {
- dbg("%s - port not opened", __func__);
+ dev_dbg(&port->dev, "%s - port not opened\n", __func__);
return;
}
- dbg("%s", "Entering .......... \n");
-
lData = LCR_BITS_8;
lStop = LCR_STOP_1;
lParity = LCR_PAR_NONE;
- cflag = tty->termios->c_cflag;
- iflag = tty->termios->c_iflag;
+ cflag = tty->termios.c_cflag;
+ iflag = tty->termios.c_iflag;
/* Change the number of bits */
- if (cflag & CSIZE) {
- switch (cflag & CSIZE) {
- case CS5:
- lData = LCR_BITS_5;
- break;
+ switch (cflag & CSIZE) {
+ case CS5:
+ lData = LCR_BITS_5;
+ break;
- case CS6:
- lData = LCR_BITS_6;
- break;
+ case CS6:
+ lData = LCR_BITS_6;
+ break;
- case CS7:
- lData = LCR_BITS_7;
- break;
- default:
- case CS8:
- lData = LCR_BITS_8;
- break;
- }
+ case CS7:
+ lData = LCR_BITS_7;
+ break;
+
+ default:
+ case CS8:
+ lData = LCR_BITS_8;
+ break;
}
+
/* Change the Parity bit */
if (cflag & PARENB) {
if (cflag & PARODD) {
lParity = LCR_PAR_ODD;
- dbg("%s - parity = odd", __func__);
+ dev_dbg(&port->dev, "%s - parity = odd\n", __func__);
} else {
lParity = LCR_PAR_EVEN;
- dbg("%s - parity = even", __func__);
+ dev_dbg(&port->dev, "%s - parity = even\n", __func__);
}
} else {
- dbg("%s - parity = none", __func__);
+ dev_dbg(&port->dev, "%s - parity = none\n", __func__);
}
if (cflag & CMSPAR)
@@ -1975,10 +1841,10 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
/* Change the Stop bit */
if (cflag & CSTOPB) {
lStop = LCR_STOP_2;
- dbg("%s - stop bits = 2", __func__);
+ dev_dbg(&port->dev, "%s - stop bits = 2\n", __func__);
} else {
lStop = LCR_STOP_1;
- dbg("%s - stop bits = 1", __func__);
+ dev_dbg(&port->dev, "%s - stop bits = 1\n", __func__);
}
/* Update the LCR with the correct value */
@@ -1986,8 +1852,8 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
~(LCR_BITS_MASK | LCR_STOP_MASK | LCR_PAR_MASK);
mos7840_port->shadowLCR |= (lData | lParity | lStop);
- dbg("mos7840_change_port_settings mos7840_port->shadowLCR is %x\n",
- mos7840_port->shadowLCR);
+ dev_dbg(&port->dev, "%s - mos7840_port->shadowLCR is %x\n", __func__,
+ mos7840_port->shadowLCR);
/* Disable Interrupts */
Data = 0x00;
mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
@@ -2028,33 +1894,28 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
if (!baud) {
/* pick a default, any default... */
- dbg("%s\n", "Picked default baud...");
+ dev_dbg(&port->dev, "%s", "Picked default baud...\n");
baud = 9600;
}
- dbg("%s - baud rate = %d", __func__, baud);
+ dev_dbg(&port->dev, "%s - baud rate = %d\n", __func__, baud);
status = mos7840_send_cmd_write_baud_rate(mos7840_port, baud);
/* Enable Interrupts */
Data = 0x0c;
mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
- if (mos7840_port->read_urb->status != -EINPROGRESS) {
- mos7840_port->read_urb->dev = serial->dev;
-
+ if (mos7840_port->read_urb_busy == false) {
+ mos7840_port->read_urb_busy = true;
status = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC);
-
if (status) {
- dbg(" usb_submit_urb(read bulk) failed, status = %d",
+ dev_dbg(&port->dev, "usb_submit_urb(read bulk) failed, status = %d\n",
status);
+ mos7840_port->read_urb_busy = false;
}
}
- wake_up(&mos7840_port->delta_msr_wait);
- mos7840_port->delta_msr_cond = 1;
- dbg("mos7840_change_port_settings mos7840_port->shadowLCR is End %x\n",
- mos7840_port->shadowLCR);
-
- return;
+ dev_dbg(&port->dev, "%s - mos7840_port->shadowLCR is End %x\n", __func__,
+ mos7840_port->shadowLCR);
}
/*****************************************************************************
@@ -2071,18 +1932,14 @@ static void mos7840_set_termios(struct tty_struct *tty,
unsigned int cflag;
struct usb_serial *serial;
struct moschip_port *mos7840_port;
- dbg("mos7840_set_termios: START\n");
- if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+
+ if (mos7840_port_paranoia_check(port, __func__))
return;
- }
serial = port->serial;
- if (mos7840_serial_paranoia_check(serial, __func__)) {
- dbg("%s", "Invalid Serial \n");
+ if (mos7840_serial_paranoia_check(serial, __func__))
return;
- }
mos7840_port = mos7840_get_port_private(port);
@@ -2090,38 +1947,37 @@ static void mos7840_set_termios(struct tty_struct *tty,
return;
if (!mos7840_port->open) {
- dbg("%s - port not opened", __func__);
+ dev_dbg(&port->dev, "%s - port not opened\n", __func__);
return;
}
- dbg("%s\n", "setting termios - ");
+ dev_dbg(&port->dev, "%s", "setting termios - \n");
- cflag = tty->termios->c_cflag;
+ cflag = tty->termios.c_cflag;
- dbg("%s - clfag %08x iflag %08x", __func__,
- tty->termios->c_cflag, RELEVANT_IFLAG(tty->termios->c_iflag));
- dbg("%s - old clfag %08x old iflag %08x", __func__,
- old_termios->c_cflag, RELEVANT_IFLAG(old_termios->c_iflag));
- dbg("%s - port %d", __func__, port->number);
+ dev_dbg(&port->dev, "%s - clfag %08x iflag %08x\n", __func__,
+ tty->termios.c_cflag, RELEVANT_IFLAG(tty->termios.c_iflag));
+ dev_dbg(&port->dev, "%s - old clfag %08x old iflag %08x\n", __func__,
+ old_termios->c_cflag, RELEVANT_IFLAG(old_termios->c_iflag));
/* change the port settings to the new ones specified */
mos7840_change_port_settings(tty, mos7840_port, old_termios);
if (!mos7840_port->read_urb) {
- dbg("%s", "URB KILLED !!!!!\n");
+ dev_dbg(&port->dev, "%s", "URB KILLED !!!!!\n");
return;
}
- if (mos7840_port->read_urb->status != -EINPROGRESS) {
- mos7840_port->read_urb->dev = serial->dev;
+ if (mos7840_port->read_urb_busy == false) {
+ mos7840_port->read_urb_busy = true;
status = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC);
if (status) {
- dbg(" usb_submit_urb(read bulk) failed, status = %d",
+ dev_dbg(&port->dev, "usb_submit_urb(read bulk) failed, status = %d\n",
status);
+ mos7840_port->read_urb_busy = false;
}
}
- return;
}
/*****************************************************************************
@@ -2142,108 +1998,8 @@ static int mos7840_get_lsr_info(struct tty_struct *tty,
unsigned int result = 0;
count = mos7840_chars_in_buffer(tty);
- if (count == 0) {
- dbg("%s -- Empty", __func__);
+ if (count == 0)
result = TIOCSER_TEMT;
- }
-
- if (copy_to_user(value, &result, sizeof(int)))
- return -EFAULT;
- return 0;
-}
-
-/*****************************************************************************
- * mos7840_set_modem_info
- * function to set modem info
- *****************************************************************************/
-
-/* FIXME: Should be using the model control hooks */
-
-static int mos7840_set_modem_info(struct moschip_port *mos7840_port,
- unsigned int cmd, unsigned int __user *value)
-{
- unsigned int mcr;
- unsigned int arg;
- __u16 Data;
- int status;
- struct usb_serial_port *port;
-
- if (mos7840_port == NULL)
- return -1;
-
- port = (struct usb_serial_port *)mos7840_port->port;
- if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
- return -1;
- }
-
- mcr = mos7840_port->shadowMCR;
-
- if (copy_from_user(&arg, value, sizeof(int)))
- return -EFAULT;
-
- switch (cmd) {
- case TIOCMBIS:
- if (arg & TIOCM_RTS)
- mcr |= MCR_RTS;
- if (arg & TIOCM_DTR)
- mcr |= MCR_RTS;
- if (arg & TIOCM_LOOP)
- mcr |= MCR_LOOPBACK;
- break;
-
- case TIOCMBIC:
- if (arg & TIOCM_RTS)
- mcr &= ~MCR_RTS;
- if (arg & TIOCM_DTR)
- mcr &= ~MCR_RTS;
- if (arg & TIOCM_LOOP)
- mcr &= ~MCR_LOOPBACK;
- break;
-
- case TIOCMSET:
- /* turn off the RTS and DTR and LOOPBACK
- * and then only turn on what was asked to */
- mcr &= ~(MCR_RTS | MCR_DTR | MCR_LOOPBACK);
- mcr |= ((arg & TIOCM_RTS) ? MCR_RTS : 0);
- mcr |= ((arg & TIOCM_DTR) ? MCR_DTR : 0);
- mcr |= ((arg & TIOCM_LOOP) ? MCR_LOOPBACK : 0);
- break;
- }
-
- mos7840_port->shadowMCR = mcr;
-
- Data = mos7840_port->shadowMCR;
- status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, Data);
- if (status < 0) {
- dbg("setting MODEM_CONTROL_REGISTER Failed\n");
- return -1;
- }
-
- return 0;
-}
-
-/*****************************************************************************
- * mos7840_get_modem_info
- * function to get modem info
- *****************************************************************************/
-
-static int mos7840_get_modem_info(struct moschip_port *mos7840_port,
- unsigned int __user *value)
-{
- unsigned int result = 0;
- __u16 msr;
- unsigned int mcr = mos7840_port->shadowMCR;
- mos7840_get_uart_reg(mos7840_port->port,
- MODEM_STATUS_REGISTER, &msr);
- result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0) /* 0x002 */
- |((mcr & MCR_RTS) ? TIOCM_RTS : 0) /* 0x004 */
- |((msr & MOS7840_MSR_CTS) ? TIOCM_CTS : 0) /* 0x020 */
- |((msr & MOS7840_MSR_CD) ? TIOCM_CAR : 0) /* 0x040 */
- |((msr & MOS7840_MSR_RI) ? TIOCM_RI : 0) /* 0x080 */
- |((msr & MOS7840_MSR_DSR) ? TIOCM_DSR : 0); /* 0x100 */
-
- dbg("%s -- %x", __func__, result);
if (copy_to_user(value, &result, sizeof(int)))
return -EFAULT;
@@ -2269,8 +2025,8 @@ static int mos7840_get_serial_info(struct moschip_port *mos7840_port,
memset(&tmp, 0, sizeof(tmp));
tmp.type = PORT_16550A;
- tmp.line = mos7840_port->port->serial->minor;
- tmp.port = mos7840_port->port->number;
+ tmp.line = mos7840_port->port->minor;
+ tmp.port = mos7840_port->port->port_number;
tmp.irq = 0;
tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
tmp.xmit_fifo_size = NUM_URBS * URB_TRANSFER_BUFFER_SIZE;
@@ -2288,420 +2044,402 @@ static int mos7840_get_serial_info(struct moschip_port *mos7840_port,
* this function handles any ioctl calls to the driver
*****************************************************************************/
-static int mos7840_ioctl(struct tty_struct *tty, struct file *file,
+static int mos7840_ioctl(struct tty_struct *tty,
unsigned int cmd, unsigned long arg)
{
struct usb_serial_port *port = tty->driver_data;
void __user *argp = (void __user *)arg;
struct moschip_port *mos7840_port;
- struct async_icount cnow;
- struct async_icount cprev;
- struct serial_icounter_struct icount;
- int mosret = 0;
-
- if (mos7840_port_paranoia_check(port, __func__)) {
- dbg("%s", "Invalid port \n");
+ if (mos7840_port_paranoia_check(port, __func__))
return -1;
- }
mos7840_port = mos7840_get_port_private(port);
if (mos7840_port == NULL)
return -1;
- dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd);
-
switch (cmd) {
/* return number of bytes available */
case TIOCSERGETLSR:
- dbg("%s (%d) TIOCSERGETLSR", __func__, port->number);
+ dev_dbg(&port->dev, "%s TIOCSERGETLSR\n", __func__);
return mos7840_get_lsr_info(tty, argp);
- return 0;
-
- /* FIXME: use the modem hooks and remove this */
- case TIOCMBIS:
- case TIOCMBIC:
- case TIOCMSET:
- dbg("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __func__,
- port->number);
- mosret =
- mos7840_set_modem_info(mos7840_port, cmd, argp);
- return mosret;
-
- case TIOCMGET:
- dbg("%s (%d) TIOCMGET", __func__, port->number);
- return mos7840_get_modem_info(mos7840_port, argp);
case TIOCGSERIAL:
- dbg("%s (%d) TIOCGSERIAL", __func__, port->number);
+ dev_dbg(&port->dev, "%s TIOCGSERIAL\n", __func__);
return mos7840_get_serial_info(mos7840_port, argp);
case TIOCSSERIAL:
- dbg("%s (%d) TIOCSSERIAL", __func__, port->number);
+ dev_dbg(&port->dev, "%s TIOCSSERIAL\n", __func__);
break;
-
- case TIOCMIWAIT:
- dbg("%s (%d) TIOCMIWAIT", __func__, port->number);
- cprev = mos7840_port->icount;
- while (1) {
- /* interruptible_sleep_on(&mos7840_port->delta_msr_wait); */
- mos7840_port->delta_msr_cond = 0;
- wait_event_interruptible(mos7840_port->delta_msr_wait,
- (mos7840_port->
- delta_msr_cond == 1));
-
- /* see if a signal did it */
- if (signal_pending(current))
- return -ERESTARTSYS;
- cnow = mos7840_port->icount;
- smp_rmb();
- if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
- cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
- return -EIO; /* no change => error */
- if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
- ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
- ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
- ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) {
- return 0;
- }
- cprev = cnow;
- }
- /* NOTREACHED */
- break;
-
- case TIOCGICOUNT:
- cnow = mos7840_port->icount;
- smp_rmb();
- icount.cts = cnow.cts;
- icount.dsr = cnow.dsr;
- icount.rng = cnow.rng;
- icount.dcd = cnow.dcd;
- icount.rx = cnow.rx;
- icount.tx = cnow.tx;
- icount.frame = cnow.frame;
- icount.overrun = cnow.overrun;
- icount.parity = cnow.parity;
- icount.brk = cnow.brk;
- icount.buf_overrun = cnow.buf_overrun;
-
- dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d", __func__,
- port->number, icount.rx, icount.tx);
- if (copy_to_user(argp, &icount, sizeof(icount)))
- return -EFAULT;
- return 0;
default:
break;
}
return -ENOIOCTLCMD;
}
-static int mos7840_calc_num_ports(struct usb_serial *serial)
+static int mos7810_check(struct usb_serial *serial)
{
- int mos7840_num_ports = 0;
+ int i, pass_count = 0;
+ u8 *buf;
+ __u16 data = 0, mcr_data = 0;
+ __u16 test_pattern = 0x55AA;
+ int res;
+
+ buf = kmalloc(VENDOR_READ_LENGTH, GFP_KERNEL);
+ if (!buf)
+ return 0; /* failed to identify 7810 */
+
+ /* Store MCR setting */
+ res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+ MCS_RDREQ, MCS_RD_RTYPE, 0x0300, MODEM_CONTROL_REGISTER,
+ buf, VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+ if (res == VENDOR_READ_LENGTH)
+ mcr_data = *buf;
+
+ for (i = 0; i < 16; i++) {
+ /* Send the 1-bit test pattern out to MCS7810 test pin */
+ usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
+ MCS_WRREQ, MCS_WR_RTYPE,
+ (0x0300 | (((test_pattern >> i) & 0x0001) << 1)),
+ MODEM_CONTROL_REGISTER, NULL, 0, MOS_WDR_TIMEOUT);
+
+ /* Read the test pattern back */
+ res = usb_control_msg(serial->dev,
+ usb_rcvctrlpipe(serial->dev, 0), MCS_RDREQ,
+ MCS_RD_RTYPE, 0, GPIO_REGISTER, buf,
+ VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+ if (res == VENDOR_READ_LENGTH)
+ data = *buf;
+
+ /* If this is a MCS7810 device, both test patterns must match */
+ if (((test_pattern >> i) ^ (~data >> 1)) & 0x0001)
+ break;
- dbg("numberofendpoints: %d \n",
- (int)serial->interface->cur_altsetting->desc.bNumEndpoints);
- dbg("numberofendpoints: %d \n",
- (int)serial->interface->altsetting->desc.bNumEndpoints);
- if (serial->interface->cur_altsetting->desc.bNumEndpoints == 5) {
- mos7840_num_ports = serial->num_ports = 2;
- } else if (serial->interface->cur_altsetting->desc.bNumEndpoints == 9) {
- serial->num_bulk_in = 4;
- serial->num_bulk_out = 4;
- mos7840_num_ports = serial->num_ports = 4;
+ pass_count++;
}
- return mos7840_num_ports;
-}
+ /* Restore MCR setting */
+ usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), MCS_WRREQ,
+ MCS_WR_RTYPE, 0x0300 | mcr_data, MODEM_CONTROL_REGISTER, NULL,
+ 0, MOS_WDR_TIMEOUT);
-/****************************************************************************
- * mos7840_startup
- ****************************************************************************/
+ kfree(buf);
-static int mos7840_startup(struct usb_serial *serial)
-{
- struct moschip_port *mos7840_port;
- struct usb_device *dev;
- int i, status;
+ if (pass_count == 16)
+ return 1;
- __u16 Data;
- dbg("%s \n", " mos7840_startup :entering..........");
+ return 0;
+}
- if (!serial) {
- dbg("%s\n", "Invalid Handler");
- return -1;
+static int mos7840_probe(struct usb_serial *serial,
+ const struct usb_device_id *id)
+{
+ u16 product = le16_to_cpu(serial->dev->descriptor.idProduct);
+ u8 *buf;
+ int device_type;
+
+ if (product == MOSCHIP_DEVICE_ID_7810 ||
+ product == MOSCHIP_DEVICE_ID_7820) {
+ device_type = product;
+ goto out;
}
- dev = serial->dev;
+ buf = kzalloc(VENDOR_READ_LENGTH, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+ MCS_RDREQ, MCS_RD_RTYPE, 0, GPIO_REGISTER, buf,
+ VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+
+ /* For a MCS7840 device GPIO0 must be set to 1 */
+ if (buf[0] & 0x01)
+ device_type = MOSCHIP_DEVICE_ID_7840;
+ else if (mos7810_check(serial))
+ device_type = MOSCHIP_DEVICE_ID_7810;
+ else
+ device_type = MOSCHIP_DEVICE_ID_7820;
+
+ kfree(buf);
+out:
+ usb_set_serial_data(serial, (void *)(unsigned long)device_type);
+
+ return 0;
+}
+
+static int mos7840_calc_num_ports(struct usb_serial *serial)
+{
+ int device_type = (unsigned long)usb_get_serial_data(serial);
+ int mos7840_num_ports;
+
+ mos7840_num_ports = (device_type >> 4) & 0x000F;
+
+ return mos7840_num_ports;
+}
- dbg("%s\n", "Entering...");
+static int mos7840_port_probe(struct usb_serial_port *port)
+{
+ struct usb_serial *serial = port->serial;
+ int device_type = (unsigned long)usb_get_serial_data(serial);
+ struct moschip_port *mos7840_port;
+ int status;
+ int pnum;
+ __u16 Data;
/* we set up the pointers to the endpoints in the mos7840_open *
* function, as the structures aren't created yet. */
- /* set up port private structures */
- for (i = 0; i < serial->num_ports; ++i) {
- mos7840_port = kzalloc(sizeof(struct moschip_port), GFP_KERNEL);
- if (mos7840_port == NULL) {
- err("%s - Out of memory", __func__);
- status = -ENOMEM;
- i--; /* don't follow NULL pointer cleaning up */
- goto error;
- }
+ pnum = port->port_number;
+
+ dev_dbg(&port->dev, "mos7840_startup: configuring port %d\n", pnum);
+ mos7840_port = kzalloc(sizeof(struct moschip_port), GFP_KERNEL);
+ if (!mos7840_port)
+ return -ENOMEM;
+
+ /* Initialize all port interrupt end point to port 0 int
+ * endpoint. Our device has only one interrupt end point
+ * common to all port */
+
+ mos7840_port->port = port;
+ mos7840_set_port_private(port, mos7840_port);
+ spin_lock_init(&mos7840_port->pool_lock);
+
+ /* minor is not initialised until later by
+ * usb-serial.c:get_free_serial() and cannot therefore be used
+ * to index device instances */
+ mos7840_port->port_num = pnum + 1;
+ dev_dbg(&port->dev, "port->minor = %d\n", port->minor);
+ dev_dbg(&port->dev, "mos7840_port->port_num = %d\n", mos7840_port->port_num);
+
+ if (mos7840_port->port_num == 1) {
+ mos7840_port->SpRegOffset = 0x0;
+ mos7840_port->ControlRegOffset = 0x1;
+ mos7840_port->DcrRegOffset = 0x4;
+ } else if ((mos7840_port->port_num == 2) && (serial->num_ports == 4)) {
+ mos7840_port->SpRegOffset = 0x8;
+ mos7840_port->ControlRegOffset = 0x9;
+ mos7840_port->DcrRegOffset = 0x16;
+ } else if ((mos7840_port->port_num == 2) && (serial->num_ports == 2)) {
+ mos7840_port->SpRegOffset = 0xa;
+ mos7840_port->ControlRegOffset = 0xb;
+ mos7840_port->DcrRegOffset = 0x19;
+ } else if ((mos7840_port->port_num == 3) && (serial->num_ports == 4)) {
+ mos7840_port->SpRegOffset = 0xa;
+ mos7840_port->ControlRegOffset = 0xb;
+ mos7840_port->DcrRegOffset = 0x19;
+ } else if ((mos7840_port->port_num == 4) && (serial->num_ports == 4)) {
+ mos7840_port->SpRegOffset = 0xc;
+ mos7840_port->ControlRegOffset = 0xd;
+ mos7840_port->DcrRegOffset = 0x1c;
+ }
+ mos7840_dump_serial_port(port, mos7840_port);
+ mos7840_set_port_private(port, mos7840_port);
+
+ /* enable rx_disable bit in control register */
+ status = mos7840_get_reg_sync(port,
+ mos7840_port->ControlRegOffset, &Data);
+ if (status < 0) {
+ dev_dbg(&port->dev, "Reading ControlReg failed status-0x%x\n", status);
+ goto out;
+ } else
+ dev_dbg(&port->dev, "ControlReg Reading success val is %x, status%d\n", Data, status);
+ Data |= 0x08; /* setting driver done bit */
+ Data |= 0x04; /* sp1_bit to have cts change reflect in
+ modem status reg */
- /* Initialize all port interrupt end point to port 0 int
- * endpoint. Our device has only one interrupt end point
- * common to all port */
-
- mos7840_port->port = serial->port[i];
- mos7840_set_port_private(serial->port[i], mos7840_port);
- spin_lock_init(&mos7840_port->pool_lock);
-
- mos7840_port->port_num = ((serial->port[i]->number -
- (serial->port[i]->serial->minor)) +
- 1);
-
- if (mos7840_port->port_num == 1) {
- mos7840_port->SpRegOffset = 0x0;
- mos7840_port->ControlRegOffset = 0x1;
- mos7840_port->DcrRegOffset = 0x4;
- } else if ((mos7840_port->port_num == 2)
- && (serial->num_ports == 4)) {
- mos7840_port->SpRegOffset = 0x8;
- mos7840_port->ControlRegOffset = 0x9;
- mos7840_port->DcrRegOffset = 0x16;
- } else if ((mos7840_port->port_num == 2)
- && (serial->num_ports == 2)) {
- mos7840_port->SpRegOffset = 0xa;
- mos7840_port->ControlRegOffset = 0xb;
- mos7840_port->DcrRegOffset = 0x19;
- } else if ((mos7840_port->port_num == 3)
- && (serial->num_ports == 4)) {
- mos7840_port->SpRegOffset = 0xa;
- mos7840_port->ControlRegOffset = 0xb;
- mos7840_port->DcrRegOffset = 0x19;
- } else if ((mos7840_port->port_num == 4)
- && (serial->num_ports == 4)) {
- mos7840_port->SpRegOffset = 0xc;
- mos7840_port->ControlRegOffset = 0xd;
- mos7840_port->DcrRegOffset = 0x1c;
- }
- mos7840_dump_serial_port(mos7840_port);
- mos7840_set_port_private(serial->port[i], mos7840_port);
+ /* Data |= 0x20; //rx_disable bit */
+ status = mos7840_set_reg_sync(port,
+ mos7840_port->ControlRegOffset, Data);
+ if (status < 0) {
+ dev_dbg(&port->dev, "Writing ControlReg failed(rx_disable) status-0x%x\n", status);
+ goto out;
+ } else
+ dev_dbg(&port->dev, "ControlReg Writing success(rx_disable) status%d\n", status);
- /* enable rx_disable bit in control register */
- status = mos7840_get_reg_sync(serial->port[i],
- mos7840_port->ControlRegOffset, &Data);
- if (status < 0) {
- dbg("Reading ControlReg failed status-0x%x\n", status);
- break;
- } else
- dbg("ControlReg Reading success val is %x, status%d\n",
- Data, status);
- Data |= 0x08; /* setting driver done bit */
- Data |= 0x04; /* sp1_bit to have cts change reflect in
- modem status reg */
-
- /* Data |= 0x20; //rx_disable bit */
- status = mos7840_set_reg_sync(serial->port[i],
- mos7840_port->ControlRegOffset, Data);
- if (status < 0) {
- dbg("Writing ControlReg failed(rx_disable) status-0x%x\n", status);
- break;
- } else
- dbg("ControlReg Writing success(rx_disable) status%d\n",
- status);
+ /* Write default values in DCR (i.e 0x01 in DCR0, 0x05 in DCR2
+ and 0x24 in DCR3 */
+ Data = 0x01;
+ status = mos7840_set_reg_sync(port,
+ (__u16) (mos7840_port->DcrRegOffset + 0), Data);
+ if (status < 0) {
+ dev_dbg(&port->dev, "Writing DCR0 failed status-0x%x\n", status);
+ goto out;
+ } else
+ dev_dbg(&port->dev, "DCR0 Writing success status%d\n", status);
- /* Write default values in DCR (i.e 0x01 in DCR0, 0x05 in DCR2
- and 0x24 in DCR3 */
- Data = 0x01;
- status = mos7840_set_reg_sync(serial->port[i],
- (__u16) (mos7840_port->DcrRegOffset + 0), Data);
- if (status < 0) {
- dbg("Writing DCR0 failed status-0x%x\n", status);
- break;
- } else
- dbg("DCR0 Writing success status%d\n", status);
+ Data = 0x05;
+ status = mos7840_set_reg_sync(port,
+ (__u16) (mos7840_port->DcrRegOffset + 1), Data);
+ if (status < 0) {
+ dev_dbg(&port->dev, "Writing DCR1 failed status-0x%x\n", status);
+ goto out;
+ } else
+ dev_dbg(&port->dev, "DCR1 Writing success status%d\n", status);
- Data = 0x05;
- status = mos7840_set_reg_sync(serial->port[i],
- (__u16) (mos7840_port->DcrRegOffset + 1), Data);
- if (status < 0) {
- dbg("Writing DCR1 failed status-0x%x\n", status);
- break;
- } else
- dbg("DCR1 Writing success status%d\n", status);
+ Data = 0x24;
+ status = mos7840_set_reg_sync(port,
+ (__u16) (mos7840_port->DcrRegOffset + 2), Data);
+ if (status < 0) {
+ dev_dbg(&port->dev, "Writing DCR2 failed status-0x%x\n", status);
+ goto out;
+ } else
+ dev_dbg(&port->dev, "DCR2 Writing success status%d\n", status);
- Data = 0x24;
- status = mos7840_set_reg_sync(serial->port[i],
- (__u16) (mos7840_port->DcrRegOffset + 2), Data);
- if (status < 0) {
- dbg("Writing DCR2 failed status-0x%x\n", status);
- break;
- } else
- dbg("DCR2 Writing success status%d\n", status);
+ /* write values in clkstart0x0 and clkmulti 0x20 */
+ Data = 0x0;
+ status = mos7840_set_reg_sync(port, CLK_START_VALUE_REGISTER, Data);
+ if (status < 0) {
+ dev_dbg(&port->dev, "Writing CLK_START_VALUE_REGISTER failed status-0x%x\n", status);
+ goto out;
+ } else
+ dev_dbg(&port->dev, "CLK_START_VALUE_REGISTER Writing success status%d\n", status);
- /* write values in clkstart0x0 and clkmulti 0x20 */
- Data = 0x0;
- status = mos7840_set_reg_sync(serial->port[i],
- CLK_START_VALUE_REGISTER, Data);
- if (status < 0) {
- dbg("Writing CLK_START_VALUE_REGISTER failed status-0x%x\n", status);
- break;
- } else
- dbg("CLK_START_VALUE_REGISTER Writing success status%d\n", status);
+ Data = 0x20;
+ status = mos7840_set_reg_sync(port, CLK_MULTI_REGISTER, Data);
+ if (status < 0) {
+ dev_dbg(&port->dev, "Writing CLK_MULTI_REGISTER failed status-0x%x\n", status);
+ goto error;
+ } else
+ dev_dbg(&port->dev, "CLK_MULTI_REGISTER Writing success status%d\n", status);
- Data = 0x20;
- status = mos7840_set_reg_sync(serial->port[i],
- CLK_MULTI_REGISTER, Data);
+ /* write value 0x0 to scratchpad register */
+ Data = 0x00;
+ status = mos7840_set_uart_reg(port, SCRATCH_PAD_REGISTER, Data);
+ if (status < 0) {
+ dev_dbg(&port->dev, "Writing SCRATCH_PAD_REGISTER failed status-0x%x\n", status);
+ goto out;
+ } else
+ dev_dbg(&port->dev, "SCRATCH_PAD_REGISTER Writing success status%d\n", status);
+
+ /* Zero Length flag register */
+ if ((mos7840_port->port_num != 1) && (serial->num_ports == 2)) {
+ Data = 0xff;
+ status = mos7840_set_reg_sync(port,
+ (__u16) (ZLP_REG1 +
+ ((__u16)mos7840_port->port_num)), Data);
+ dev_dbg(&port->dev, "ZLIP offset %x\n",
+ (__u16)(ZLP_REG1 + ((__u16) mos7840_port->port_num)));
if (status < 0) {
- dbg("Writing CLK_MULTI_REGISTER failed status-0x%x\n",
- status);
- goto error;
+ dev_dbg(&port->dev, "Writing ZLP_REG%d failed status-0x%x\n", pnum + 2, status);
+ goto out;
} else
- dbg("CLK_MULTI_REGISTER Writing success status%d\n",
- status);
-
- /* write value 0x0 to scratchpad register */
- Data = 0x00;
- status = mos7840_set_uart_reg(serial->port[i],
- SCRATCH_PAD_REGISTER, Data);
+ dev_dbg(&port->dev, "ZLP_REG%d Writing success status%d\n", pnum + 2, status);
+ } else {
+ Data = 0xff;
+ status = mos7840_set_reg_sync(port,
+ (__u16) (ZLP_REG1 +
+ ((__u16)mos7840_port->port_num) - 0x1), Data);
+ dev_dbg(&port->dev, "ZLIP offset %x\n",
+ (__u16)(ZLP_REG1 + ((__u16) mos7840_port->port_num) - 0x1));
if (status < 0) {
- dbg("Writing SCRATCH_PAD_REGISTER failed status-0x%x\n",
- status);
- break;
+ dev_dbg(&port->dev, "Writing ZLP_REG%d failed status-0x%x\n", pnum + 1, status);
+ goto out;
} else
- dbg("SCRATCH_PAD_REGISTER Writing success status%d\n",
- status);
+ dev_dbg(&port->dev, "ZLP_REG%d Writing success status%d\n", pnum + 1, status);
- /* Zero Length flag register */
- if ((mos7840_port->port_num != 1)
- && (serial->num_ports == 2)) {
-
- Data = 0xff;
- status = mos7840_set_reg_sync(serial->port[i],
- (__u16) (ZLP_REG1 +
- ((__u16)mos7840_port->port_num)), Data);
- dbg("ZLIP offset%x\n",
- (__u16) (ZLP_REG1 +
- ((__u16) mos7840_port->port_num)));
- if (status < 0) {
- dbg("Writing ZLP_REG%d failed status-0x%x\n",
- i + 2, status);
- break;
- } else
- dbg("ZLP_REG%d Writing success status%d\n",
- i + 2, status);
- } else {
- Data = 0xff;
- status = mos7840_set_reg_sync(serial->port[i],
- (__u16) (ZLP_REG1 +
- ((__u16)mos7840_port->port_num) - 0x1), Data);
- dbg("ZLIP offset%x\n",
- (__u16) (ZLP_REG1 +
- ((__u16) mos7840_port->port_num) - 0x1));
- if (status < 0) {
- dbg("Writing ZLP_REG%d failed status-0x%x\n",
- i + 1, status);
- break;
- } else
- dbg("ZLP_REG%d Writing success status%d\n",
- i + 1, status);
+ }
+ mos7840_port->control_urb = usb_alloc_urb(0, GFP_KERNEL);
+ mos7840_port->ctrl_buf = kmalloc(16, GFP_KERNEL);
+ mos7840_port->dr = kmalloc(sizeof(struct usb_ctrlrequest),
+ GFP_KERNEL);
+ if (!mos7840_port->control_urb || !mos7840_port->ctrl_buf ||
+ !mos7840_port->dr) {
+ status = -ENOMEM;
+ goto error;
+ }
- }
- mos7840_port->control_urb = usb_alloc_urb(0, GFP_KERNEL);
- mos7840_port->ctrl_buf = kmalloc(16, GFP_KERNEL);
- mos7840_port->dr = kmalloc(sizeof(struct usb_ctrlrequest),
+ mos7840_port->has_led = false;
+
+ /* Initialize LED timers */
+ if (device_type == MOSCHIP_DEVICE_ID_7810) {
+ mos7840_port->has_led = true;
+
+ mos7840_port->led_urb = usb_alloc_urb(0, GFP_KERNEL);
+ mos7840_port->led_dr = kmalloc(sizeof(*mos7840_port->led_dr),
GFP_KERNEL);
- if (!mos7840_port->control_urb || !mos7840_port->ctrl_buf ||
- !mos7840_port->dr) {
+ if (!mos7840_port->led_urb || !mos7840_port->led_dr) {
status = -ENOMEM;
goto error;
}
- }
- /* Zero Length flag enable */
- Data = 0x0f;
- status = mos7840_set_reg_sync(serial->port[0], ZLP_REG5, Data);
- if (status < 0) {
- dbg("Writing ZLP_REG5 failed status-0x%x\n", status);
- goto error;
- } else
- dbg("ZLP_REG5 Writing success status%d\n", status);
+ init_timer(&mos7840_port->led_timer1);
+ mos7840_port->led_timer1.function = mos7840_led_off;
+ mos7840_port->led_timer1.expires =
+ jiffies + msecs_to_jiffies(LED_ON_MS);
+ mos7840_port->led_timer1.data = (unsigned long)mos7840_port;
+
+ init_timer(&mos7840_port->led_timer2);
+ mos7840_port->led_timer2.function = mos7840_led_flag_off;
+ mos7840_port->led_timer2.expires =
+ jiffies + msecs_to_jiffies(LED_OFF_MS);
+ mos7840_port->led_timer2.data = (unsigned long)mos7840_port;
+
+ /* Turn off LED */
+ mos7840_set_led_sync(port, MODEM_CONTROL_REGISTER, 0x0300);
+ }
+out:
+ if (pnum == serial->num_ports - 1) {
+ /* Zero Length flag enable */
+ Data = 0x0f;
+ status = mos7840_set_reg_sync(serial->port[0], ZLP_REG5, Data);
+ if (status < 0) {
+ dev_dbg(&port->dev, "Writing ZLP_REG5 failed status-0x%x\n", status);
+ goto error;
+ } else
+ dev_dbg(&port->dev, "ZLP_REG5 Writing success status%d\n", status);
- /* setting configuration feature to one */
- usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
- (__u8) 0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5 * HZ);
+ /* setting configuration feature to one */
+ usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
+ 0x03, 0x00, 0x01, 0x00, NULL, 0x00,
+ MOS_WDR_TIMEOUT);
+ }
return 0;
error:
- for (/* nothing */; i >= 0; i--) {
- mos7840_port = mos7840_get_port_private(serial->port[i]);
+ kfree(mos7840_port->led_dr);
+ usb_free_urb(mos7840_port->led_urb);
+ kfree(mos7840_port->dr);
+ kfree(mos7840_port->ctrl_buf);
+ usb_free_urb(mos7840_port->control_urb);
+ kfree(mos7840_port);
- kfree(mos7840_port->dr);
- kfree(mos7840_port->ctrl_buf);
- usb_free_urb(mos7840_port->control_urb);
- kfree(mos7840_port);
- serial->port[i] = NULL;
- }
return status;
}
-/****************************************************************************
- * mos7840_shutdown
- * This function is called whenever the device is removed from the usb bus.
- ****************************************************************************/
-
-static void mos7840_shutdown(struct usb_serial *serial)
+static int mos7840_port_remove(struct usb_serial_port *port)
{
- int i;
- unsigned long flags;
struct moschip_port *mos7840_port;
- dbg("%s \n", " shutdown :entering..........");
- if (!serial) {
- dbg("%s", "Invalid Handler \n");
- return;
- }
+ mos7840_port = mos7840_get_port_private(port);
- /* check for the ports to be closed,close the ports and disconnect */
+ if (mos7840_port->has_led) {
+ /* Turn off LED */
+ mos7840_set_led_sync(port, MODEM_CONTROL_REGISTER, 0x0300);
- /* free private structure allocated for serial port *
- * stop reads and writes on all ports */
+ del_timer_sync(&mos7840_port->led_timer1);
+ del_timer_sync(&mos7840_port->led_timer2);
- for (i = 0; i < serial->num_ports; ++i) {
- mos7840_port = mos7840_get_port_private(serial->port[i]);
- spin_lock_irqsave(&mos7840_port->pool_lock, flags);
- mos7840_port->zombie = 1;
- spin_unlock_irqrestore(&mos7840_port->pool_lock, flags);
- usb_kill_urb(mos7840_port->control_urb);
- kfree(mos7840_port->ctrl_buf);
- kfree(mos7840_port->dr);
- kfree(mos7840_port);
- mos7840_set_port_private(serial->port[i], NULL);
+ usb_kill_urb(mos7840_port->led_urb);
+ usb_free_urb(mos7840_port->led_urb);
+ kfree(mos7840_port->led_dr);
}
+ usb_kill_urb(mos7840_port->control_urb);
+ usb_free_urb(mos7840_port->control_urb);
+ kfree(mos7840_port->ctrl_buf);
+ kfree(mos7840_port->dr);
+ kfree(mos7840_port);
- dbg("%s\n", "Thank u :: ");
-
+ return 0;
}
-static struct usb_driver io_driver = {
- .name = "mos7840",
- .probe = usb_serial_probe,
- .disconnect = usb_serial_disconnect,
- .id_table = moschip_id_table_combined,
- .no_dynamic_id = 1,
-};
-
static struct usb_serial_driver moschip7840_4port_device = {
.driver = {
.owner = THIS_MODULE,
.name = "mos7840",
},
.description = DRIVER_DESC,
- .usb_driver = &io_driver,
- .id_table = moschip_port_id_table,
+ .id_table = id_table,
.num_ports = 4,
.open = mos7840_open,
.close = mos7840_close,
@@ -2711,72 +2449,25 @@ static struct usb_serial_driver moschip7840_4port_device = {
.throttle = mos7840_throttle,
.unthrottle = mos7840_unthrottle,
.calc_num_ports = mos7840_calc_num_ports,
-#ifdef MCSSerialProbe
- .probe = mos7840_serial_probe,
-#endif
+ .probe = mos7840_probe,
.ioctl = mos7840_ioctl,
.set_termios = mos7840_set_termios,
.break_ctl = mos7840_break,
.tiocmget = mos7840_tiocmget,
.tiocmset = mos7840_tiocmset,
- .attach = mos7840_startup,
- .shutdown = mos7840_shutdown,
+ .tiocmiwait = usb_serial_generic_tiocmiwait,
+ .get_icount = usb_serial_generic_get_icount,
+ .port_probe = mos7840_port_probe,
+ .port_remove = mos7840_port_remove,
.read_bulk_callback = mos7840_bulk_in_callback,
.read_int_callback = mos7840_interrupt_callback,
};
-/****************************************************************************
- * moschip7840_init
- * This is called by the module subsystem, or on startup to initialize us
- ****************************************************************************/
-static int __init moschip7840_init(void)
-{
- int retval;
-
- dbg("%s \n", " mos7840_init :entering..........");
-
- /* Register with the usb serial */
- retval = usb_serial_register(&moschip7840_4port_device);
-
- if (retval)
- goto failed_port_device_register;
-
- dbg("%s\n", "Entring...");
- info(DRIVER_DESC " " DRIVER_VERSION);
-
- /* Register with the usb */
- retval = usb_register(&io_driver);
- if (retval == 0) {
- dbg("%s\n", "Leaving...");
- return 0;
- }
- usb_serial_deregister(&moschip7840_4port_device);
-failed_port_device_register:
- return retval;
-}
-
-/****************************************************************************
- * moschip7840_exit
- * Called when the driver is about to be unloaded.
- ****************************************************************************/
-static void __exit moschip7840_exit(void)
-{
-
- dbg("%s \n", " mos7840_exit :entering..........");
-
- usb_deregister(&io_driver);
-
- usb_serial_deregister(&moschip7840_4port_device);
-
- dbg("%s\n", "Entring...");
-}
+static struct usb_serial_driver * const serial_drivers[] = {
+ &moschip7840_4port_device, NULL
+};
-module_init(moschip7840_init);
-module_exit(moschip7840_exit);
+module_usb_serial_driver(serial_drivers, id_table);
-/* Module information */
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug enabled or not");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 19:46:00 +0000