/*
USB Driver for Sierra Wireless
- Copyright (C) 2006 Kevin Lloyd <linux@sierrawireless.com>
+ Copyright (C) 2006, 2007 Kevin Lloyd <linux@sierrawireless.com>
IMPORTANT DISCLAIMER: This driver is not commercially supported by
Sierra Wireless. Use at your own risk.
Portions based on the option driver by Matthias Urlichs <smurf@smurf.noris.de>
Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org>
-
*/
-#define DRIVER_VERSION "v.1.0.6"
+#define DRIVER_VERSION "v.1.2.4b"
#define DRIVER_AUTHOR "Kevin Lloyd <linux@sierrawireless.com>"
#define DRIVER_DESC "USB Driver for Sierra Wireless USB modems"
#include <linux/usb.h>
#include <linux/usb/serial.h>
+#define SWIMS_USB_REQUEST_SetMode 0x0B
+#define SWIMS_USB_REQUEST_TYPE_SetMode 0x40
+#define SWIMS_USB_INDEX_SetMode 0x0000
+#define SWIMS_SET_MODE_Modem 0x0001
+
+/* per port private data */
+#define N_IN_URB 4
+#define N_OUT_URB 4
+#define IN_BUFLEN 4096
+
+static int debug;
+
+enum devicetype {
+ DEVICE_3_PORT = 0,
+ DEVICE_1_PORT = 1,
+ DEVICE_INSTALLER = 2,
+};
+
+int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
+{
+ int result;
+ dev_dbg(&udev->dev, "%s", "SET POWER STATE");
+ result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ 0x00, /* __u8 request */
+ 0x40, /* __u8 request type */
+ swiState, /* __u16 value */
+ 0, /* __u16 index */
+ NULL, /* void *data */
+ 0, /* __u16 size */
+ USB_CTRL_SET_TIMEOUT); /* int timeout */
+ return result;
+}
+
+int sierra_set_ms_mode(struct usb_device *udev, __u16 eSocMode)
+{
+ int result;
+ dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH");
+ result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ SWIMS_USB_REQUEST_SetMode, /* __u8 request */
+ SWIMS_USB_REQUEST_TYPE_SetMode, /* __u8 request type */
+ eSocMode, /* __u16 value */
+ SWIMS_USB_INDEX_SetMode, /* __u16 index */
+ NULL, /* void *data */
+ 0, /* __u16 size */
+ USB_CTRL_SET_TIMEOUT); /* int timeout */
+ return result;
+}
+
+int sierra_probe(struct usb_interface *iface, const struct usb_device_id *id)
+{
+ int result;
+ struct usb_device *udev;
+
+ udev = usb_get_dev(interface_to_usbdev(iface));
+
+ /* Check if in installer mode */
+ if (id->driver_info == DEVICE_INSTALLER) {
+ dev_dbg(&udev->dev, "%s", "FOUND DEVICE(SW)\n");
+ result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem);
+ /*We do not want to bind to the device when in installer mode*/
+ return -EIO;
+ }
+
+ return usb_serial_probe(iface, id);
+}
static struct usb_device_id id_table [] = {
{ USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
{ USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
{ USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
{ USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
+ { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless AirCard 595U */
{ USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
{ USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
{ USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
{ USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 */
{ USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
- { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
- { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra PC 5220 */
+ { USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */
+ { USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */
+
+ { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER},
{ }
};
MODULE_DEVICE_TABLE(usb, id_table);
};
static struct usb_device_id id_table_3port [] = {
+ /* CDMA Devices */
{ USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
{ USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
{ USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
{ USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */
{ USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
+ { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless AirCard 595U */
{ USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
+
+ /* GSM/UMTS Devices */
{ USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
{ USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
{ USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
static struct usb_driver sierra_driver = {
.name = "sierra",
- .probe = usb_serial_probe,
+ .probe = sierra_probe,
.disconnect = usb_serial_disconnect,
.id_table = id_table,
.no_dynamic_id = 1,
};
-static int debug;
-
-/* per port private data */
-#define N_IN_URB 4
-#define N_OUT_URB 4
-#define IN_BUFLEN 4096
-#define OUT_BUFLEN 128
-
struct sierra_port_private {
+ spinlock_t lock; /* lock the structure */
+ int outstanding_urbs; /* number of out urbs in flight */
+
/* Input endpoints and buffer for this port */
struct urb *in_urbs[N_IN_URB];
char in_buffer[N_IN_URB][IN_BUFLEN];
- /* Output endpoints and buffer for this port */
- struct urb *out_urbs[N_OUT_URB];
- char out_buffer[N_OUT_URB][OUT_BUFLEN];
/* Settings for the port */
int rts_state; /* Handshaking pins (outputs) */
int dsr_state;
int dcd_state;
int ri_state;
-
- unsigned long tx_start_time[N_OUT_URB];
};
static int sierra_send_setup(struct usb_serial_port *port)
return -ENOIOCTLCMD;
}
+static void sierra_outdat_callback(struct urb *urb)
+{
+ struct usb_serial_port *port = urb->context;
+ struct sierra_port_private *portdata = usb_get_serial_port_data(port);
+ int status = urb->status;
+ unsigned long flags;
+
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ /* free up the transfer buffer, as usb_free_urb() does not do this */
+ kfree(urb->transfer_buffer);
+
+ if (status)
+ dbg("%s - nonzero write bulk status received: %d",
+ __FUNCTION__, status);
+
+ spin_lock_irqsave(&portdata->lock, flags);
+ --portdata->outstanding_urbs;
+ spin_unlock_irqrestore(&portdata->lock, flags);
+
+ usb_serial_port_softint(port);
+}
+
/* Write */
static int sierra_write(struct usb_serial_port *port,
const unsigned char *buf, int count)
{
- struct sierra_port_private *portdata;
- int i;
- int left, todo;
- struct urb *this_urb = NULL; /* spurious */
- int err;
+ struct sierra_port_private *portdata = usb_get_serial_port_data(port);
+ struct usb_serial *serial = port->serial;
+ unsigned long flags;
+ unsigned char *buffer;
+ struct urb *urb;
+ int status;
portdata = usb_get_serial_port_data(port);
dbg("%s: write (%d chars)", __FUNCTION__, count);
- i = 0;
- left = count;
- for (i=0; left > 0 && i < N_OUT_URB; i++) {
- todo = left;
- if (todo > OUT_BUFLEN)
- todo = OUT_BUFLEN;
-
- this_urb = portdata->out_urbs[i];
- if (this_urb->status == -EINPROGRESS) {
- if (time_before(jiffies,
- portdata->tx_start_time[i] + 10 * HZ))
- continue;
- usb_unlink_urb(this_urb);
- continue;
- }
- if (this_urb->status != 0)
- dbg("usb_write %p failed (err=%d)",
- this_urb, this_urb->status);
-
- dbg("%s: endpoint %d buf %d", __FUNCTION__,
- usb_pipeendpoint(this_urb->pipe), i);
-
- /* send the data */
- memcpy (this_urb->transfer_buffer, buf, todo);
- this_urb->transfer_buffer_length = todo;
-
- this_urb->dev = port->serial->dev;
- err = usb_submit_urb(this_urb, GFP_ATOMIC);
- if (err) {
- dbg("usb_submit_urb %p (write bulk) failed "
- "(%d, has %d)", this_urb,
- err, this_urb->status);
- continue;
- }
- portdata->tx_start_time[i] = jiffies;
- buf += todo;
- left -= todo;
+ spin_lock_irqsave(&portdata->lock, flags);
+ if (portdata->outstanding_urbs > N_OUT_URB) {
+ spin_unlock_irqrestore(&portdata->lock, flags);
+ dbg("%s - write limit hit\n", __FUNCTION__);
+ return 0;
+ }
+ portdata->outstanding_urbs++;
+ spin_unlock_irqrestore(&portdata->lock, flags);
+
+ buffer = kmalloc(count, GFP_ATOMIC);
+ if (!buffer) {
+ dev_err(&port->dev, "out of memory\n");
+ count = -ENOMEM;
+ goto error_no_buffer;
+ }
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb) {
+ dev_err(&port->dev, "no more free urbs\n");
+ count = -ENOMEM;
+ goto error_no_urb;
+ }
+
+ memcpy(buffer, buf, count);
+
+ usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer);
+
+ usb_fill_bulk_urb(urb, serial->dev,
+ usb_sndbulkpipe(serial->dev,
+ port->bulk_out_endpointAddress),
+ buffer, count, sierra_outdat_callback, port);
+
+ /* send it down the pipe */
+ status = usb_submit_urb(urb, GFP_ATOMIC);
+ if (status) {
+ dev_err(&port->dev, "%s - usb_submit_urb(write bulk) failed "
+ "with status = %d\n", __FUNCTION__, status);
+ count = status;
+ goto error;
}
- count -= left;
- dbg("%s: wrote (did %d)", __FUNCTION__, count);
+ /* we are done with this urb, so let the host driver
+ * really free it when it is finished with it */
+ usb_free_urb(urb);
+
+ return count;
+error:
+ usb_free_urb(urb);
+error_no_urb:
+ kfree(buffer);
+error_no_buffer:
+ spin_lock_irqsave(&portdata->lock, flags);
+ --portdata->outstanding_urbs;
+ spin_unlock_irqrestore(&portdata->lock, flags);
return count;
}
struct usb_serial_port *port;
struct tty_struct *tty;
unsigned char *data = urb->transfer_buffer;
+ int status = urb->status;
dbg("%s: %p", __FUNCTION__, urb);
endpoint = usb_pipeendpoint(urb->pipe);
port = (struct usb_serial_port *) urb->context;
- if (urb->status) {
+ if (status) {
dbg("%s: nonzero status: %d on endpoint %02x.",
- __FUNCTION__, urb->status, endpoint);
+ __FUNCTION__, status, endpoint);
} else {
tty = port->tty;
if (urb->actual_length) {
}
/* Resubmit urb so we continue receiving */
- if (port->open_count && urb->status != -ESHUTDOWN) {
+ if (port->open_count && status != -ESHUTDOWN) {
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err)
- printk(KERN_ERR "%s: resubmit read urb failed. "
- "(%d)", __FUNCTION__, err);
+ dev_err(&port->dev, "resubmit read urb failed."
+ "(%d)", err);
}
}
return;
}
-static void sierra_outdat_callback(struct urb *urb)
-{
- struct usb_serial_port *port;
-
- dbg("%s", __FUNCTION__);
-
- port = (struct usb_serial_port *) urb->context;
-
- usb_serial_port_softint(port);
-}
-
static void sierra_instat_callback(struct urb *urb)
{
int err;
+ int status = urb->status;
struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
struct sierra_port_private *portdata = usb_get_serial_port_data(port);
struct usb_serial *serial = port->serial;
dbg("%s", __FUNCTION__);
dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
- if (urb->status == 0) {
+ if (status == 0) {
struct usb_ctrlrequest *req_pkt =
(struct usb_ctrlrequest *)urb->transfer_buffer;
req_pkt->bRequestType,req_pkt->bRequest);
}
} else
- dbg("%s: error %d", __FUNCTION__, urb->status);
+ dbg("%s: error %d", __FUNCTION__, status);
/* Resubmit urb so we continue receiving IRQ data */
- if (urb->status != -ESHUTDOWN) {
+ if (status != -ESHUTDOWN) {
urb->dev = serial->dev;
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err)
static int sierra_write_room(struct usb_serial_port *port)
{
- struct sierra_port_private *portdata;
- int i;
- int data_len = 0;
- struct urb *this_urb;
+ struct sierra_port_private *portdata = usb_get_serial_port_data(port);
+ unsigned long flags;
- portdata = usb_get_serial_port_data(port);
+ dbg("%s - port %d", __FUNCTION__, port->number);
- for (i=0; i < N_OUT_URB; i++) {
- this_urb = portdata->out_urbs[i];
- if (this_urb && this_urb->status != -EINPROGRESS)
- data_len += OUT_BUFLEN;
+ /* try to give a good number back based on if we have any free urbs at
+ * this point in time */
+ spin_lock_irqsave(&portdata->lock, flags);
+ if (portdata->outstanding_urbs > N_OUT_URB * 2 / 3) {
+ spin_unlock_irqrestore(&portdata->lock, flags);
+ dbg("%s - write limit hit\n", __FUNCTION__);
+ return 0;
}
+ spin_unlock_irqrestore(&portdata->lock, flags);
- dbg("%s: %d", __FUNCTION__, data_len);
- return data_len;
+ return 2048;
}
static int sierra_chars_in_buffer(struct usb_serial_port *port)
{
- struct sierra_port_private *portdata;
- int i;
- int data_len = 0;
- struct urb *this_urb;
-
- portdata = usb_get_serial_port_data(port);
-
- for (i=0; i < N_OUT_URB; i++) {
- this_urb = portdata->out_urbs[i];
- if (this_urb && this_urb->status == -EINPROGRESS)
- data_len += this_urb->transfer_buffer_length;
- }
- dbg("%s: %d", __FUNCTION__, data_len);
- return data_len;
+ dbg("%s - port %d", __FUNCTION__, port->number);
+
+ /*
+ * We can't really account for how much data we
+ * have sent out, but hasn't made it through to the
+ * device as we can't see the backend here, so just
+ * tell the tty layer that everything is flushed.
+ */
+ return 0;
}
static int sierra_open(struct usb_serial_port *port, struct file *filp)
{
struct sierra_port_private *portdata;
struct usb_serial *serial = port->serial;
- int i, err;
+ int i;
struct urb *urb;
int result;
- __u16 set_mode_dzero = 0x0000;
portdata = usb_get_serial_port_data(port);
/* Reset low level data toggle and start reading from endpoints */
for (i = 0; i < N_IN_URB; i++) {
urb = portdata->in_urbs[i];
- if (! urb)
+ if (!urb)
continue;
if (urb->dev != serial->dev) {
dbg("%s: dev %p != %p", __FUNCTION__,
*/
usb_clear_halt(urb->dev, urb->pipe);
- err = usb_submit_urb(urb, GFP_KERNEL);
- if (err) {
- dbg("%s: submit urb %d failed (%d) %d",
- __FUNCTION__, i, err,
- urb->transfer_buffer_length);
+ result = usb_submit_urb(urb, GFP_KERNEL);
+ if (result) {
+ dev_err(&port->dev, "submit urb %d failed (%d) %d",
+ i, result, urb->transfer_buffer_length);
}
}
- /* Reset low level data toggle on out endpoints */
- for (i = 0; i < N_OUT_URB; i++) {
- urb = portdata->out_urbs[i];
- if (! urb)
- continue;
- urb->dev = serial->dev;
- /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
- usb_pipeout(urb->pipe), 0); */
- }
-
port->tty->low_latency = 1;
- /* set mode to D0 */
- result = usb_control_msg(serial->dev,
- usb_rcvctrlpipe(serial->dev, 0),
- 0x00, 0x40, set_mode_dzero, 0, NULL,
- 0, USB_CTRL_SET_TIMEOUT);
-
sierra_send_setup(port);
- return (0);
-}
-
-static inline void stop_urb(struct urb *urb)
-{
- if (urb && urb->status == -EINPROGRESS)
- usb_kill_urb(urb);
+ /* start up the interrupt endpoint if we have one */
+ if (port->interrupt_in_urb) {
+ result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
+ if (result)
+ dev_err(&port->dev, "submit irq_in urb failed %d",
+ result);
+ }
+ return 0;
}
static void sierra_close(struct usb_serial_port *port, struct file *filp)
/* Stop reading/writing urbs */
for (i = 0; i < N_IN_URB; i++)
- stop_urb(portdata->in_urbs[i]);
- for (i = 0; i < N_OUT_URB; i++)
- stop_urb(portdata->out_urbs[i]);
+ usb_kill_urb(portdata->in_urbs[i]);
}
- port->tty = NULL;
-}
-
-/* Helper functions used by sierra_setup_urbs */
-static struct urb *sierra_setup_urb(struct usb_serial *serial, int endpoint,
- int dir, void *ctx, char *buf, int len,
- usb_complete_t callback)
-{
- struct urb *urb;
-
- if (endpoint == -1)
- return NULL; /* endpoint not needed */
-
- urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
- if (urb == NULL) {
- dbg("%s: alloc for endpoint %d failed.", __FUNCTION__, endpoint);
- return NULL;
- }
-
- /* Fill URB using supplied data. */
- usb_fill_bulk_urb(urb, serial->dev,
- usb_sndbulkpipe(serial->dev, endpoint) | dir,
- buf, len, callback, ctx);
-
- return urb;
-}
-
-/* Setup urbs */
-static void sierra_setup_urbs(struct usb_serial *serial)
-{
- int i,j;
- struct usb_serial_port *port;
- struct sierra_port_private *portdata;
-
- dbg("%s", __FUNCTION__);
-
- for (i = 0; i < serial->num_ports; i++) {
- port = serial->port[i];
- portdata = usb_get_serial_port_data(port);
- /* Do indat endpoints first */
- for (j = 0; j < N_IN_URB; ++j) {
- portdata->in_urbs[j] = sierra_setup_urb (serial,
- port->bulk_in_endpointAddress, USB_DIR_IN, port,
- portdata->in_buffer[j], IN_BUFLEN, sierra_indat_callback);
- }
+ usb_kill_urb(port->interrupt_in_urb);
- /* outdat endpoints */
- for (j = 0; j < N_OUT_URB; ++j) {
- portdata->out_urbs[j] = sierra_setup_urb (serial,
- port->bulk_out_endpointAddress, USB_DIR_OUT, port,
- portdata->out_buffer[j], OUT_BUFLEN, sierra_outdat_callback);
- }
- }
+ port->tty = NULL;
}
static int sierra_startup(struct usb_serial *serial)
{
- int i, err;
struct usb_serial_port *port;
struct sierra_port_private *portdata;
+ struct urb *urb;
+ int i;
+ int j;
dbg("%s", __FUNCTION__);
+ /*Set Device mode to D0 */
+ sierra_set_power_state(serial->dev, 0x0000);
+
/* Now setup per port private data */
for (i = 0; i < serial->num_ports; i++) {
port = serial->port[i];
if (!portdata) {
dbg("%s: kmalloc for sierra_port_private (%d) failed!.",
__FUNCTION__, i);
- return (1);
+ return -ENOMEM;
}
+ spin_lock_init(&portdata->lock);
usb_set_serial_port_data(port, portdata);
- if (! port->interrupt_in_urb)
- continue;
- err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
- if (err)
- dbg("%s: submit irq_in urb failed %d",
- __FUNCTION__, err);
+ /* initialize the in urbs */
+ for (j = 0; j < N_IN_URB; ++j) {
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (urb == NULL) {
+ dbg("%s: alloc for in port failed.",
+ __FUNCTION__);
+ continue;
+ }
+ /* Fill URB using supplied data. */
+ usb_fill_bulk_urb(urb, serial->dev,
+ usb_rcvbulkpipe(serial->dev,
+ port->bulk_in_endpointAddress),
+ portdata->in_buffer[j], IN_BUFLEN,
+ sierra_indat_callback, port);
+ portdata->in_urbs[j] = urb;
+ }
}
- sierra_setup_urbs(serial);
-
- return (0);
+ return 0;
}
static void sierra_shutdown(struct usb_serial *serial)
dbg("%s", __FUNCTION__);
- /* Stop reading/writing urbs */
- for (i = 0; i < serial->num_ports; ++i) {
- port = serial->port[i];
- portdata = usb_get_serial_port_data(port);
- for (j = 0; j < N_IN_URB; j++)
- stop_urb(portdata->in_urbs[j]);
- for (j = 0; j < N_OUT_URB; j++)
- stop_urb(portdata->out_urbs[j]);
- }
-
- /* Now free them */
for (i = 0; i < serial->num_ports; ++i) {
port = serial->port[i];
+ if (!port)
+ continue;
portdata = usb_get_serial_port_data(port);
+ if (!portdata)
+ continue;
for (j = 0; j < N_IN_URB; j++) {
- if (portdata->in_urbs[j]) {
- usb_free_urb(portdata->in_urbs[j]);
- portdata->in_urbs[j] = NULL;
- }
- }
- for (j = 0; j < N_OUT_URB; j++) {
- if (portdata->out_urbs[j]) {
- usb_free_urb(portdata->out_urbs[j]);
- portdata->out_urbs[j] = NULL;
- }
+ usb_kill_urb(portdata->in_urbs[j]);
+ usb_free_urb(portdata->in_urbs[j]);
+ portdata->in_urbs[j] = NULL;
}
- }
-
- /* Now free per port private data */
- for (i = 0; i < serial->num_ports; i++) {
- port = serial->port[i];
- kfree(usb_get_serial_port_data(port));
+ kfree(portdata);
+ usb_set_serial_port_data(port, NULL);
}
}
projects / linux-2.6-omap-h63xx.git / blobdiff