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path: root/drivers/usb/serial/option.c
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Diffstat (limited to 'drivers/usb/serial/option.c')
-rw-r--r--drivers/usb/serial/option.c203
1 files changed, 90 insertions, 113 deletions
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index e9256408757..92d0f925d05 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -45,29 +45,29 @@
#include "usb-serial.h"
/* Function prototypes */
-static int option_open (struct usb_serial_port *port, struct file *filp);
-static void option_close (struct usb_serial_port *port, struct file *filp);
-static int option_startup (struct usb_serial *serial);
-static void option_shutdown (struct usb_serial *serial);
-static void option_rx_throttle (struct usb_serial_port *port);
-static void option_rx_unthrottle (struct usb_serial_port *port);
-static int option_write_room (struct usb_serial_port *port);
+static int option_open(struct usb_serial_port *port, struct file *filp);
+static void option_close(struct usb_serial_port *port, struct file *filp);
+static int option_startup(struct usb_serial *serial);
+static void option_shutdown(struct usb_serial *serial);
+static void option_rx_throttle(struct usb_serial_port *port);
+static void option_rx_unthrottle(struct usb_serial_port *port);
+static int option_write_room(struct usb_serial_port *port);
static void option_instat_callback(struct urb *urb, struct pt_regs *regs);
-static int option_write (struct usb_serial_port *port,
- const unsigned char *buf, int count);
+static int option_write(struct usb_serial_port *port,
+ const unsigned char *buf, int count);
-static int option_chars_in_buffer (struct usb_serial_port *port);
-static int option_ioctl (struct usb_serial_port *port, struct file *file,
- unsigned int cmd, unsigned long arg);
-static void option_set_termios (struct usb_serial_port *port,
- struct termios *old);
-static void option_break_ctl (struct usb_serial_port *port, int break_state);
-static int option_tiocmget (struct usb_serial_port *port, struct file *file);
-static int option_tiocmset (struct usb_serial_port *port, struct file *file,
- unsigned int set, unsigned int clear);
-static int option_send_setup (struct usb_serial_port *port);
+static int option_chars_in_buffer(struct usb_serial_port *port);
+static int option_ioctl(struct usb_serial_port *port, struct file *file,
+ unsigned int cmd, unsigned long arg);
+static void option_set_termios(struct usb_serial_port *port,
+ struct termios *old);
+static void option_break_ctl(struct usb_serial_port *port, int break_state);
+static int option_tiocmget(struct usb_serial_port *port, struct file *file);
+static int option_tiocmset(struct usb_serial_port *port, struct file *file,
+ unsigned int set, unsigned int clear);
+static int option_send_setup(struct usb_serial_port *port);
/* Vendor and product IDs */
#define OPTION_VENDOR_ID 0x0AF0
@@ -76,7 +76,6 @@ static int option_send_setup (struct usb_serial_port *port);
#define OPTION_PRODUCT_FUSION 0x6000
#define OPTION_PRODUCT_FUSION2 0x6300
-
static struct usb_device_id option_ids[] = {
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_OLD) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION) },
@@ -129,7 +128,6 @@ static int debug;
#define debug 0
#endif
-
/* per port private data */
#define N_IN_URB 4
@@ -156,10 +154,8 @@ struct option_port_private {
unsigned long tx_start_time[N_OUT_URB];
};
-
/* Functions used by new usb-serial code. */
-static int __init
-option_init (void)
+static int __init option_init(void)
{
int retval;
retval = usb_serial_register(&option_3port_device);
@@ -179,8 +175,7 @@ failed_3port_device_register:
return retval;
}
-static void __exit
-option_exit (void)
+static void __exit option_exit(void)
{
usb_deregister (&option_driver);
usb_serial_deregister (&option_3port_device);
@@ -189,39 +184,31 @@ option_exit (void)
module_init(option_init);
module_exit(option_exit);
-static void
-option_rx_throttle (struct usb_serial_port *port)
+static void option_rx_throttle(struct usb_serial_port *port)
{
dbg("%s", __FUNCTION__);
}
-
-static void
-option_rx_unthrottle (struct usb_serial_port *port)
+static void option_rx_unthrottle(struct usb_serial_port *port)
{
dbg("%s", __FUNCTION__);
}
-
-static void
-option_break_ctl (struct usb_serial_port *port, int break_state)
+static void option_break_ctl(struct usb_serial_port *port, int break_state)
{
/* Unfortunately, I don't know how to send a break */
dbg("%s", __FUNCTION__);
}
-
-static void
-option_set_termios (struct usb_serial_port *port,
- struct termios *old_termios)
+static void option_set_termios(struct usb_serial_port *port,
+ struct termios *old_termios)
{
dbg("%s", __FUNCTION__);
option_send_setup(port);
}
-static int
-option_tiocmget (struct usb_serial_port *port, struct file *file)
+static int option_tiocmget(struct usb_serial_port *port, struct file *file)
{
unsigned int value;
struct option_port_private *portdata;
@@ -238,9 +225,8 @@ option_tiocmget (struct usb_serial_port *port, struct file *file)
return value;
}
-static int
-option_tiocmset (struct usb_serial_port *port, struct file *file,
- unsigned int set, unsigned int clear)
+static int option_tiocmset(struct usb_serial_port *port, struct file *file,
+ unsigned int set, unsigned int clear)
{
struct option_port_private *portdata;
@@ -258,17 +244,15 @@ option_tiocmset (struct usb_serial_port *port, struct file *file,
return option_send_setup(port);
}
-static int
-option_ioctl (struct usb_serial_port *port, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int option_ioctl(struct usb_serial_port *port, struct file *file,
+ unsigned int cmd, unsigned long arg)
{
return -ENOIOCTLCMD;
}
/* Write */
-static int
-option_write (struct usb_serial_port *port,
- const unsigned char *buf, int count)
+static int option_write(struct usb_serial_port *port,
+ const unsigned char *buf, int count)
{
struct option_port_private *portdata;
int i;
@@ -289,28 +273,29 @@ option_write (struct usb_serial_port *port,
this_urb = portdata->out_urbs[i];
if (this_urb->status == -EINPROGRESS) {
- if (this_urb->transfer_flags & URB_ASYNC_UNLINK)
- continue;
- if (time_before(jiffies, portdata->tx_start_time[i] + 10 * HZ))
+ if (time_before(jiffies,
+ portdata->tx_start_time[i] + 10 * HZ))
continue;
- this_urb->transfer_flags |= URB_ASYNC_UNLINK;
usb_unlink_urb(this_urb);
continue;
}
if (this_urb->status != 0)
- dbg("usb_write %p failed (err=%d)", this_urb, this_urb->status);
+ 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);
+ 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->transfer_flags &= ~URB_ASYNC_UNLINK;
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);
+ dbg("usb_submit_urb %p (write bulk) failed "
+ "(%d, has %d)", this_urb,
+ err, this_urb->status);
continue;
}
portdata->tx_start_time[i] = jiffies;
@@ -323,8 +308,7 @@ option_write (struct usb_serial_port *port,
return count;
}
-static void
-option_indat_callback (struct urb *urb, struct pt_regs *regs)
+static void option_indat_callback(struct urb *urb, struct pt_regs *regs)
{
int i, err;
int endpoint;
@@ -357,14 +341,14 @@ option_indat_callback (struct urb *urb, struct pt_regs *regs)
if (port->open_count && urb->status != -ESHUTDOWN) {
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err)
- printk(KERN_ERR "%s: resubmit read urb failed. (%d)", __FUNCTION__, err);
+ printk(KERN_ERR "%s: resubmit read urb failed. "
+ "(%d)", __FUNCTION__, err);
}
}
return;
}
-static void
-option_outdat_callback (struct urb *urb, struct pt_regs *regs)
+static void option_outdat_callback(struct urb *urb, struct pt_regs *regs)
{
struct usb_serial_port *port;
@@ -376,8 +360,7 @@ option_outdat_callback (struct urb *urb, struct pt_regs *regs)
schedule_work(&port->work);
}
-static void
-option_instat_callback (struct urb *urb, struct pt_regs *regs)
+static void option_instat_callback(struct urb *urb, struct pt_regs *regs)
{
int err;
struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
@@ -395,10 +378,12 @@ option_instat_callback (struct urb *urb, struct pt_regs *regs)
dbg("%s: NULL req_pkt\n", __FUNCTION__);
return;
}
- if ((req_pkt->bRequestType == 0xA1) && (req_pkt->bRequest == 0x20)) {
+ if ((req_pkt->bRequestType == 0xA1) &&
+ (req_pkt->bRequest == 0x20)) {
int old_dcd_state;
unsigned char signals = *((unsigned char *)
- urb->transfer_buffer + sizeof(struct usb_ctrlrequest));
+ urb->transfer_buffer +
+ sizeof(struct usb_ctrlrequest));
dbg("%s: signal x%x", __FUNCTION__, signals);
@@ -408,12 +393,13 @@ option_instat_callback (struct urb *urb, struct pt_regs *regs)
portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
portdata->ri_state = ((signals & 0x08) ? 1 : 0);
- if (port->tty && !C_CLOCAL(port->tty)
- && old_dcd_state && !portdata->dcd_state) {
+ if (port->tty && !C_CLOCAL(port->tty) &&
+ old_dcd_state && !portdata->dcd_state)
tty_hangup(port->tty);
- }
- } else
- dbg("%s: type %x req %x", __FUNCTION__, req_pkt->bRequestType,req_pkt->bRequest);
+ } else {
+ dbg("%s: type %x req %x", __FUNCTION__,
+ req_pkt->bRequestType,req_pkt->bRequest);
+ }
} else
dbg("%s: error %d", __FUNCTION__, urb->status);
@@ -422,13 +408,12 @@ option_instat_callback (struct urb *urb, struct pt_regs *regs)
urb->dev = serial->dev;
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err)
- dbg("%s: resubmit intr urb failed. (%d)", __FUNCTION__, err);
+ dbg("%s: resubmit intr urb failed. (%d)",
+ __FUNCTION__, err);
}
}
-
-static int
-option_write_room (struct usb_serial_port *port)
+static int option_write_room(struct usb_serial_port *port)
{
struct option_port_private *portdata;
int i;
@@ -447,9 +432,7 @@ option_write_room (struct usb_serial_port *port)
return data_len;
}
-
-static int
-option_chars_in_buffer (struct usb_serial_port *port)
+static int option_chars_in_buffer(struct usb_serial_port *port)
{
struct option_port_private *portdata;
int i;
@@ -467,9 +450,7 @@ option_chars_in_buffer (struct usb_serial_port *port)
return data_len;
}
-
-static int
-option_open (struct usb_serial_port *port, struct file *filp)
+static int option_open(struct usb_serial_port *port, struct file *filp)
{
struct option_port_private *portdata;
struct usb_serial *serial = port->serial;
@@ -490,17 +471,21 @@ option_open (struct usb_serial_port *port, struct file *filp)
if (! urb)
continue;
if (urb->dev != serial->dev) {
- dbg("%s: dev %p != %p", __FUNCTION__, urb->dev, serial->dev);
+ dbg("%s: dev %p != %p", __FUNCTION__,
+ urb->dev, serial->dev);
continue;
}
- /* make sure endpoint data toggle is synchronized with the device */
-
+ /*
+ * make sure endpoint data toggle is synchronized with the
+ * device
+ */
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,
+ dbg("%s: submit urb %d failed (%d) %d",
+ __FUNCTION__, i, err,
urb->transfer_buffer_length);
}
}
@@ -511,7 +496,8 @@ option_open (struct usb_serial_port *port, struct file *filp)
if (! urb)
continue;
urb->dev = serial->dev;
- /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe), 0); */
+ /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
+ usb_pipeout(urb->pipe), 0); */
}
port->tty->low_latency = 1;
@@ -521,17 +507,13 @@ option_open (struct usb_serial_port *port, struct file *filp)
return (0);
}
-static inline void
-stop_urb (struct urb *urb)
+static inline void stop_urb(struct urb *urb)
{
- if (urb && urb->status == -EINPROGRESS) {
- urb->transfer_flags &= ~URB_ASYNC_UNLINK;
+ if (urb && urb->status == -EINPROGRESS)
usb_kill_urb(urb);
- }
}
-static void
-option_close (struct usb_serial_port *port, struct file *filp)
+static void option_close(struct usb_serial_port *port, struct file *filp)
{
int i;
struct usb_serial *serial = port->serial;
@@ -555,12 +537,10 @@ option_close (struct usb_serial_port *port, struct file *filp)
port->tty = NULL;
}
-
/* Helper functions used by option_setup_urbs */
-static struct urb *
-option_setup_urb (struct usb_serial *serial, int endpoint,
- int dir, void *ctx, char *buf, int len,
- void (*callback)(struct urb *, struct pt_regs *regs))
+static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
+ int dir, void *ctx, char *buf, int len,
+ void (*callback)(struct urb *, struct pt_regs *regs))
{
struct urb *urb;
@@ -582,8 +562,7 @@ option_setup_urb (struct usb_serial *serial, int endpoint,
}
/* Setup urbs */
-static void
-option_setup_urbs (struct usb_serial *serial)
+static void option_setup_urbs(struct usb_serial *serial)
{
int j;
struct usb_serial_port *port;
@@ -609,9 +588,7 @@ option_setup_urbs (struct usb_serial *serial)
}
}
-
-static int
-option_send_setup (struct usb_serial_port *port)
+static int option_send_setup(struct usb_serial_port *port)
{
struct usb_serial *serial = port->serial;
struct option_port_private *portdata;
@@ -627,16 +604,15 @@ option_send_setup (struct usb_serial_port *port)
if (portdata->rts_state)
val |= 0x02;
- return usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
- 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
+ return usb_control_msg(serial->dev,
+ usb_rcvctrlpipe(serial->dev, 0),
+ 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
}
return 0;
}
-
-static int
-option_startup (struct usb_serial *serial)
+static int option_startup(struct usb_serial *serial)
{
int i, err;
struct usb_serial_port *port;
@@ -647,9 +623,10 @@ option_startup (struct usb_serial *serial)
/* Now setup per port private data */
for (i = 0; i < serial->num_ports; i++) {
port = serial->port[i];
- portdata = kmalloc(sizeof(struct option_port_private), GFP_KERNEL);
+ portdata = kmalloc(sizeof(*portdata), GFP_KERNEL);
if (!portdata) {
- dbg("%s: kmalloc for option_port_private (%d) failed!.", __FUNCTION__, i);
+ dbg("%s: kmalloc for option_port_private (%d) failed!.",
+ __FUNCTION__, i);
return (1);
}
memset(portdata, 0, sizeof(struct option_port_private));
@@ -660,7 +637,8 @@ option_startup (struct usb_serial *serial)
continue;
err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (err)
- dbg("%s: submit irq_in urb failed %d", __FUNCTION__, err);
+ dbg("%s: submit irq_in urb failed %d",
+ __FUNCTION__, err);
}
option_setup_urbs(serial);
@@ -668,8 +646,7 @@ option_startup (struct usb_serial *serial)
return (0);
}
-static void
-option_shutdown (struct usb_serial *serial)
+static void option_shutdown(struct usb_serial *serial)
{
int i, j;
struct usb_serial_port *port;
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-18 10:58:59 +0000