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[PATCH] USB: option card driver coding style tweaks 

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Andrew Morton 2005-07-27 01:08:30 -07:00 committed by Greg Kroah-Hartman
parent b9db07fba7
commit 7bb75aeeee
1 changed files with 89 additions and 106 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

195
drivers/usb/serial/option.c
View File

@ -45,29 +45,29 @@
#include "usb-serial.h" #include "usb-serial.h"
/* Function prototypes */ /* Function prototypes */
static int option_open (struct usb_serial_port *port, struct file *filp); 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 void option_close(struct usb_serial_port *port, struct file *filp);
static int option_startup (struct usb_serial *serial); static int option_startup(struct usb_serial *serial);
static void option_shutdown (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_throttle(struct usb_serial_port *port);
static void option_rx_unthrottle (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_write_room(struct usb_serial_port *port);
static void option_instat_callback(struct urb *urb, struct pt_regs *regs); static void option_instat_callback(struct urb *urb, struct pt_regs *regs);
static int option_write (struct usb_serial_port *port, static int option_write(struct usb_serial_port *port,
const unsigned char *buf, int count); const unsigned char *buf, int count);
static int option_chars_in_buffer (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, static int option_ioctl(struct usb_serial_port *port, struct file *file,
unsigned int cmd, unsigned long arg); unsigned int cmd, unsigned long arg);
static void option_set_termios (struct usb_serial_port *port, static void option_set_termios(struct usb_serial_port *port,
struct termios *old); struct termios *old);
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);
static int option_tiocmget (struct usb_serial_port *port, struct file *file); static int option_tiocmget(struct usb_serial_port *port, struct file *file);
static int option_tiocmset (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); unsigned int set, unsigned int clear);
static int option_send_setup (struct usb_serial_port *port); static int option_send_setup(struct usb_serial_port *port);
/* Vendor and product IDs */ /* Vendor and product IDs */
#define OPTION_VENDOR_ID 0x0AF0 #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_FUSION 0x6000
#define OPTION_PRODUCT_FUSION2 0x6300 #define OPTION_PRODUCT_FUSION2 0x6300
static struct usb_device_id option_ids[] = { static struct usb_device_id option_ids[] = {
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_OLD) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_OLD) },
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION) },
@ -129,7 +128,6 @@ static int debug;
#define debug 0 #define debug 0
#endif #endif
/* per port private data */ /* per port private data */
#define N_IN_URB 4 #define N_IN_URB 4
@ -156,10 +154,8 @@ struct option_port_private {
unsigned long tx_start_time[N_OUT_URB]; unsigned long tx_start_time[N_OUT_URB];
}; };
/* Functions used by new usb-serial code. */ /* Functions used by new usb-serial code. */
static int __init static int __init option_init(void)
option_init (void)
{ {
int retval; int retval;
retval = usb_serial_register(&option_3port_device); retval = usb_serial_register(&option_3port_device);
@ -179,8 +175,7 @@ failed_3port_device_register:
return retval; return retval;
} }
static void __exit static void __exit option_exit(void)
option_exit (void)
{ {
usb_deregister (&option_driver); usb_deregister (&option_driver);
usb_serial_deregister (&option_3port_device); usb_serial_deregister (&option_3port_device);
@ -189,39 +184,31 @@ option_exit (void)
module_init(option_init); module_init(option_init);
module_exit(option_exit); module_exit(option_exit);
static void static void option_rx_throttle(struct usb_serial_port *port)
option_rx_throttle (struct usb_serial_port *port)
{ {
dbg("%s", __FUNCTION__); 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__); 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 */ /* Unfortunately, I don't know how to send a break */
dbg("%s", __FUNCTION__); dbg("%s", __FUNCTION__);
} }
static void option_set_termios(struct usb_serial_port *port,
static void struct termios *old_termios)
option_set_termios (struct usb_serial_port *port,
struct termios *old_termios)
{ {
dbg("%s", __FUNCTION__); dbg("%s", __FUNCTION__);
option_send_setup(port); option_send_setup(port);
} }
static int static int option_tiocmget(struct usb_serial_port *port, struct file *file)
option_tiocmget (struct usb_serial_port *port, struct file *file)
{ {
unsigned int value; unsigned int value;
struct option_port_private *portdata; struct option_port_private *portdata;
@ -238,9 +225,8 @@ option_tiocmget (struct usb_serial_port *port, struct file *file)
return value; return value;
} }
static int static int option_tiocmset(struct usb_serial_port *port, struct file *file,
option_tiocmset (struct usb_serial_port *port, struct file *file, unsigned int set, unsigned int clear)
unsigned int set, unsigned int clear)
{ {
struct option_port_private *portdata; struct option_port_private *portdata;
@ -258,17 +244,15 @@ option_tiocmset (struct usb_serial_port *port, struct file *file,
return option_send_setup(port); return option_send_setup(port);
} }
static int static int option_ioctl(struct usb_serial_port *port, struct file *file,
option_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg)
unsigned int cmd, unsigned long arg)
{ {
return -ENOIOCTLCMD; return -ENOIOCTLCMD;
} }
/* Write */ /* Write */
static int static int option_write(struct usb_serial_port *port,
option_write (struct usb_serial_port *port, const unsigned char *buf, int count)
const unsigned char *buf, int count)
{ {
struct option_port_private *portdata; struct option_port_private *portdata;
int i; int i;
@ -291,16 +275,19 @@ option_write (struct usb_serial_port *port,
if (this_urb->status == -EINPROGRESS) { if (this_urb->status == -EINPROGRESS) {
if (this_urb->transfer_flags & URB_ASYNC_UNLINK) if (this_urb->transfer_flags & URB_ASYNC_UNLINK)
continue; continue;
if (time_before(jiffies, portdata->tx_start_time[i] + 10 * HZ)) if (time_before(jiffies,
portdata->tx_start_time[i] + 10 * HZ))
continue; continue;
this_urb->transfer_flags |= URB_ASYNC_UNLINK; this_urb->transfer_flags |= URB_ASYNC_UNLINK;
usb_unlink_urb(this_urb); usb_unlink_urb(this_urb);
continue; continue;
} }
if (this_urb->status != 0) 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 */ /* send the data */
memcpy (this_urb->transfer_buffer, buf, todo); memcpy (this_urb->transfer_buffer, buf, todo);
@ -310,7 +297,9 @@ option_write (struct usb_serial_port *port,
this_urb->dev = port->serial->dev; this_urb->dev = port->serial->dev;
err = usb_submit_urb(this_urb, GFP_ATOMIC); err = usb_submit_urb(this_urb, GFP_ATOMIC);
if (err) { 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; continue;
} }
portdata->tx_start_time[i] = jiffies; portdata->tx_start_time[i] = jiffies;
@ -323,8 +312,7 @@ option_write (struct usb_serial_port *port,
return count; return count;
} }
static void static void option_indat_callback(struct urb *urb, struct pt_regs *regs)
option_indat_callback (struct urb *urb, struct pt_regs *regs)
{ {
int i, err; int i, err;
int endpoint; int endpoint;
@ -357,14 +345,14 @@ option_indat_callback (struct urb *urb, struct pt_regs *regs)
if (port->open_count && urb->status != -ESHUTDOWN) { if (port->open_count && urb->status != -ESHUTDOWN) {
err = usb_submit_urb(urb, GFP_ATOMIC); err = usb_submit_urb(urb, GFP_ATOMIC);
if (err) 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; return;
} }
static void static void option_outdat_callback(struct urb *urb, struct pt_regs *regs)
option_outdat_callback (struct urb *urb, struct pt_regs *regs)
{ {
struct usb_serial_port *port; struct usb_serial_port *port;
@ -376,8 +364,7 @@ option_outdat_callback (struct urb *urb, struct pt_regs *regs)
schedule_work(&port->work); schedule_work(&port->work);
} }
static void static void option_instat_callback(struct urb *urb, struct pt_regs *regs)
option_instat_callback (struct urb *urb, struct pt_regs *regs)
{ {
int err; int err;
struct usb_serial_port *port = (struct usb_serial_port *) urb->context; struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
@ -395,10 +382,12 @@ option_instat_callback (struct urb *urb, struct pt_regs *regs)
dbg("%s: NULL req_pkt\n", __FUNCTION__); dbg("%s: NULL req_pkt\n", __FUNCTION__);
return; return;
} }
if ((req_pkt->bRequestType == 0xA1) && (req_pkt->bRequest == 0x20)) { if ((req_pkt->bRequestType == 0xA1) &&
(req_pkt->bRequest == 0x20)) {
int old_dcd_state; int old_dcd_state;
unsigned char signals = *((unsigned char *) 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); dbg("%s: signal x%x", __FUNCTION__, signals);
@ -408,12 +397,13 @@ option_instat_callback (struct urb *urb, struct pt_regs *regs)
portdata->dsr_state = ((signals & 0x02) ? 1 : 0); portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
portdata->ri_state = ((signals & 0x08) ? 1 : 0); portdata->ri_state = ((signals & 0x08) ? 1 : 0);
if (port->tty && !C_CLOCAL(port->tty) if (port->tty && !C_CLOCAL(port->tty) &&
&& old_dcd_state && !portdata->dcd_state) { old_dcd_state && !portdata->dcd_state)
tty_hangup(port->tty); tty_hangup(port->tty);
} } else {
} else dbg("%s: type %x req %x", __FUNCTION__,
dbg("%s: type %x req %x", __FUNCTION__, req_pkt->bRequestType,req_pkt->bRequest); req_pkt->bRequestType,req_pkt->bRequest);
}
} else } else
dbg("%s: error %d", __FUNCTION__, urb->status); dbg("%s: error %d", __FUNCTION__, urb->status);
@ -422,13 +412,12 @@ option_instat_callback (struct urb *urb, struct pt_regs *regs)
urb->dev = serial->dev; urb->dev = serial->dev;
err = usb_submit_urb(urb, GFP_ATOMIC); err = usb_submit_urb(urb, GFP_ATOMIC);
if (err) 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; struct option_port_private *portdata;
int i; int i;
@ -447,9 +436,7 @@ option_write_room (struct usb_serial_port *port)
return data_len; 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; struct option_port_private *portdata;
int i; int i;
@ -467,9 +454,7 @@ option_chars_in_buffer (struct usb_serial_port *port)
return data_len; 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 option_port_private *portdata;
struct usb_serial *serial = port->serial; struct usb_serial *serial = port->serial;
@ -490,17 +475,21 @@ option_open (struct usb_serial_port *port, struct file *filp)
if (! urb) if (! urb)
continue; continue;
if (urb->dev != serial->dev) { 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; 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); usb_clear_halt(urb->dev, urb->pipe);
err = usb_submit_urb(urb, GFP_KERNEL); err = usb_submit_urb(urb, GFP_KERNEL);
if (err) { 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); urb->transfer_buffer_length);
} }
} }
@ -511,7 +500,8 @@ option_open (struct usb_serial_port *port, struct file *filp)
if (! urb) if (! urb)
continue; continue;
urb->dev = serial->dev; 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; port->tty->low_latency = 1;
@ -521,8 +511,7 @@ option_open (struct usb_serial_port *port, struct file *filp)
return (0); return (0);
} }
static inline void static inline void stop_urb(struct urb *urb)
stop_urb (struct urb *urb)
{ {
if (urb && urb->status == -EINPROGRESS) { if (urb && urb->status == -EINPROGRESS) {
urb->transfer_flags &= ~URB_ASYNC_UNLINK; urb->transfer_flags &= ~URB_ASYNC_UNLINK;
@ -530,8 +519,7 @@ stop_urb (struct urb *urb)
} }
} }
static void static void option_close(struct usb_serial_port *port, struct file *filp)
option_close (struct usb_serial_port *port, struct file *filp)
{ {
int i; int i;
struct usb_serial *serial = port->serial; struct usb_serial *serial = port->serial;
@ -555,12 +543,10 @@ option_close (struct usb_serial_port *port, struct file *filp)
port->tty = NULL; port->tty = NULL;
} }
/* Helper functions used by option_setup_urbs */ /* Helper functions used by option_setup_urbs */
static struct urb * static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
option_setup_urb (struct usb_serial *serial, int endpoint, int dir, void *ctx, char *buf, int len,
int dir, void *ctx, char *buf, int len, void (*callback)(struct urb *, struct pt_regs *regs))
void (*callback)(struct urb *, struct pt_regs *regs))
{ {
struct urb *urb; struct urb *urb;
@ -582,8 +568,7 @@ option_setup_urb (struct usb_serial *serial, int endpoint,
} }
/* Setup urbs */ /* Setup urbs */
static void static void option_setup_urbs(struct usb_serial *serial)
option_setup_urbs (struct usb_serial *serial)
{ {
int j; int j;
struct usb_serial_port *port; struct usb_serial_port *port;
@ -609,9 +594,7 @@ 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 usb_serial *serial = port->serial;
struct option_port_private *portdata; struct option_port_private *portdata;
@ -627,16 +610,15 @@ option_send_setup (struct usb_serial_port *port)
if (portdata->rts_state) if (portdata->rts_state)
val |= 0x02; val |= 0x02;
return usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), return usb_control_msg(serial->dev,
0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT); usb_rcvctrlpipe(serial->dev, 0),
0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
} }
return 0; return 0;
} }
static int option_startup(struct usb_serial *serial)
static int
option_startup (struct usb_serial *serial)
{ {
int i, err; int i, err;
struct usb_serial_port *port; struct usb_serial_port *port;
@ -647,9 +629,10 @@ option_startup (struct usb_serial *serial)
/* Now setup per port private data */ /* Now setup per port private data */
for (i = 0; i < serial->num_ports; i++) { for (i = 0; i < serial->num_ports; i++) {
port = serial->port[i]; port = serial->port[i];
portdata = kmalloc(sizeof(struct option_port_private), GFP_KERNEL); portdata = kmalloc(sizeof(*portdata), GFP_KERNEL);
if (!portdata) { 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); return (1);
} }
memset(portdata, 0, sizeof(struct option_port_private)); memset(portdata, 0, sizeof(struct option_port_private));
@ -660,7 +643,8 @@ option_startup (struct usb_serial *serial)
continue; continue;
err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
if (err) 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); option_setup_urbs(serial);
@ -668,8 +652,7 @@ option_startup (struct usb_serial *serial)
return (0); return (0);
} }
static void static void option_shutdown(struct usb_serial *serial)
option_shutdown (struct usb_serial *serial)
{ {
int i, j; int i, j;
struct usb_serial_port *port; struct usb_serial_port *port;