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whiteheat: coding style 

Bring ezusb and whiteheat into line with the coding style

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox 2008-07-22 11:09:16 +01:00 committed by Linus Torvalds
parent 95da310e66
commit 80359a9c5c
3 changed files with 279 additions and 205 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/usb/serial/ezusb.c
View File

@ -20,7 +20,8 @@
/* EZ-USB Control and Status Register. Bit 0 controls 8051 reset */
#define CPUCS_REG 0x7F92
int ezusb_writememory (struct usb_serial *serial, int address, unsigned char *data, int length, __u8 bRequest)
int ezusb_writememory(struct usb_serial *serial, int address,
unsigned char *data, int length, __u8 request)
{
int result;
unsigned char *transfer_buffer;
@ -33,26 +34,27 @@ int ezusb_writememory (struct usb_serial *serial, int address, unsigned char *da
transfer_buffer = kmemdup(data, length, GFP_KERNEL);
if (!transfer_buffer) {
dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n", __func__, length);
dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n",
__func__, length);
return -ENOMEM;
}
result = usb_control_msg (serial->dev, usb_sndctrlpipe(serial->dev, 0), bRequest, 0x40, address, 0, transfer_buffer, length, 3000);
kfree (transfer_buffer);
result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
request, 0x40, address, 0, transfer_buffer, length, 3000);
kfree(transfer_buffer);
return result;
}
EXPORT_SYMBOL_GPL(ezusb_writememory);
int ezusb_set_reset (struct usb_serial *serial, unsigned char reset_bit)
int ezusb_set_reset(struct usb_serial *serial, unsigned char reset_bit)
{
int response;
/* dbg("%s - %d", __func__, reset_bit); */
response = ezusb_writememory (serial, CPUCS_REG, &reset_bit, 1, 0xa0);
response = ezusb_writememory(serial, CPUCS_REG, &reset_bit, 1, 0xa0);
if (response < 0)
dev_err(&serial->dev->dev, "%s- %d failed\n", __func__, reset_bit);
dev_err(&serial->dev->dev, "%s- %d failed\n",
__func__, reset_bit);
return response;
}
EXPORT_SYMBOL_GPL(ezusb_writememory);
EXPORT_SYMBOL_GPL(ezusb_set_reset);

384
drivers/usb/serial/whiteheat.c
View File

@ -12,29 +12,31 @@
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* See Documentation/usb/usb-serial.txt for more information on using this driver
* See Documentation/usb/usb-serial.txt for more information on using this
* driver
*
* (10/09/2002) Stuart MacDonald (stuartm@connecttech.com)
* Upgrade to full working driver
*
* (05/30/2001) gkh
* switched from using spinlock to a semaphore, which fixes lots of problems.
* switched from using spinlock to a semaphore, which fixes lots of
* problems.
*
* (04/08/2001) gb
* Identify version on module load.
*
*
* 2001_Mar_19 gkh
* Fixed MOD_INC and MOD_DEC logic, the ability to open a port more
* Fixed MOD_INC and MOD_DEC logic, the ability to open a port more
* than once, and the got the proper usb_device_id table entries so
* the driver works again.
*
* (11/01/2000) Adam J. Richter
* usb_device_id table support
*
*
* (10/05/2000) gkh
* Fixed bug with urb->dev not being set properly, now that the usb
* core needs it.
*
*
* (10/03/2000) smd
* firmware is improved to guard against crap sent to device
* firmware now replies CMD_FAILURE on bad things
@ -52,9 +54,9 @@
* Fixed bug with port->minor that was found by Al Borchers
*
* (07/04/2000) gkh
* Added support for port settings. Baud rate can now be changed. Line signals
* are not transferred to and from the tty layer yet, but things seem to be
* working well now.
* Added support for port settings. Baud rate can now be changed. Line
* signals are not transferred to and from the tty layer yet, but things
* seem to be working well now.
*
* (05/04/2000) gkh
* First cut at open and close commands. Data can flow through the ports at
@ -62,7 +64,7 @@
*
* (03/26/2000) gkh
* Split driver up into device specific pieces.
*
*
*/
#include <linux/kernel.h>
@ -75,7 +77,7 @@
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <asm/uaccess.h>
#include <linux/uaccess.h>
#include <asm/termbits.h>
#include <linux/usb.h>
#include <linux/serial_reg.h>
@ -125,7 +127,7 @@ static struct usb_device_id id_table_combined [] = {
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE (usb, id_table_combined);
MODULE_DEVICE_TABLE(usb, id_table_combined);
static struct usb_driver whiteheat_driver = {
.name = "whiteheat",
@ -136,26 +138,34 @@ static struct usb_driver whiteheat_driver = {
};
/* function prototypes for the Connect Tech WhiteHEAT prerenumeration device */
static int whiteheat_firmware_download (struct usb_serial *serial, const struct usb_device_id *id);
static int whiteheat_firmware_attach (struct usb_serial *serial);
static int whiteheat_firmware_download(struct usb_serial *serial,
const struct usb_device_id *id);
static int whiteheat_firmware_attach(struct usb_serial *serial);
/* function prototypes for the Connect Tech WhiteHEAT serial converter */
static int whiteheat_attach (struct usb_serial *serial);
static void whiteheat_shutdown (struct usb_serial *serial);
static int whiteheat_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
static void whiteheat_close (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
static int whiteheat_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count);
static int whiteheat_write_room (struct tty_struct *tty);
static int whiteheat_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg);
static void whiteheat_set_termios (struct tty_struct *tty, struct usb_serial_port *port, struct ktermios * old);
static int whiteheat_tiocmget (struct tty_struct *tty, struct file *file);
static int whiteheat_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear);
static void whiteheat_break_ctl (struct tty_struct *tty, int break_state);
static int whiteheat_chars_in_buffer (struct tty_struct *tty);
static void whiteheat_throttle (struct tty_struct *tty);
static void whiteheat_unthrottle (struct tty_struct *tty);
static void whiteheat_read_callback (struct urb *urb);
static void whiteheat_write_callback (struct urb *urb);
static int whiteheat_attach(struct usb_serial *serial);
static void whiteheat_shutdown(struct usb_serial *serial);
static int whiteheat_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
static void whiteheat_close(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp);
static int whiteheat_write(struct tty_struct *tty,
struct usb_serial_port *port,
const unsigned char *buf, int count);
static int whiteheat_write_room(struct tty_struct *tty);
static int whiteheat_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg);
static void whiteheat_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old);
static int whiteheat_tiocmget(struct tty_struct *tty, struct file *file);
static int whiteheat_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
static void whiteheat_break_ctl(struct tty_struct *tty, int break_state);
static int whiteheat_chars_in_buffer(struct tty_struct *tty);
static void whiteheat_throttle(struct tty_struct *tty);
static void whiteheat_unthrottle(struct tty_struct *tty);
static void whiteheat_read_callback(struct urb *urb);
static void whiteheat_write_callback(struct urb *urb);
static struct usb_serial_driver whiteheat_fake_device = {
.driver = {
@ -202,7 +212,9 @@ struct whiteheat_command_private {
struct mutex mutex;
__u8 port_running;
__u8 command_finished;
wait_queue_head_t wait_command; /* for handling sleeping while waiting for a command to finish */
wait_queue_head_t wait_command; /* for handling sleeping whilst
waiting for a command to
finish */
__u8 result_buffer[64];
};
@ -239,11 +251,13 @@ static void command_port_write_callback(struct urb *urb);
static void command_port_read_callback(struct urb *urb);
static int start_port_read(struct usb_serial_port *port);
static struct whiteheat_urb_wrap *urb_to_wrap(struct urb *urb, struct list_head *head);
static struct whiteheat_urb_wrap *urb_to_wrap(struct urb *urb,
struct list_head *head);
static struct list_head *list_first(struct list_head *head);
static void rx_data_softint(struct work_struct *work);
static int firm_send_command(struct usb_serial_port *port, __u8 command, __u8 *data, __u8 datasize);
static int firm_send_command(struct usb_serial_port *port, __u8 command,
__u8 *data, __u8 datasize);
static int firm_open(struct usb_serial_port *port);
static int firm_close(struct usb_serial_port *port);
static int firm_setup_port(struct tty_struct *tty);
@ -278,7 +292,8 @@ static int firm_report_tx_done(struct usb_serial_port *port);
- device renumerated itself and comes up as new device id with all
firmware download completed.
*/
static int whiteheat_firmware_download (struct usb_serial *serial, const struct usb_device_id *id)
static int whiteheat_firmware_download(struct usb_serial *serial,
const struct usb_device_id *id)
{
int response, ret = -ENOENT;
const struct firmware *loader_fw = NULL, *firmware_fw = NULL;
@ -313,7 +328,7 @@ static int whiteheat_firmware_download (struct usb_serial *serial, const struct
record = ihex_next_binrec(record);
}
response = ezusb_set_reset (serial, 0);
response = ezusb_set_reset(serial, 0);
record = (const struct ihex_binrec *)firmware_fw->data;
while (record && be32_to_cpu(record->addr) < 0x1b40)
@ -330,8 +345,8 @@ static int whiteheat_firmware_download (struct usb_serial *serial, const struct
}
++record;
}
response = ezusb_set_reset (serial, 1);
response = ezusb_set_reset(serial, 1);
record = (const struct ihex_binrec *)firmware_fw->data;
while (record && be32_to_cpu(record->addr) < 0x1b40) {
@ -355,7 +370,7 @@ static int whiteheat_firmware_download (struct usb_serial *serial, const struct
}
static int whiteheat_firmware_attach (struct usb_serial *serial)
static int whiteheat_firmware_attach(struct usb_serial *serial)
{
/* We want this device to fail to have a driver assigned to it */
return 1;
@ -365,7 +380,7 @@ static int whiteheat_firmware_attach (struct usb_serial *serial)
/*****************************************************************************
* Connect Tech's White Heat serial driver functions
*****************************************************************************/
static int whiteheat_attach (struct usb_serial *serial)
static int whiteheat_attach(struct usb_serial *serial)
{
struct usb_serial_port *command_port;
struct whiteheat_command_private *command_info;
@ -386,43 +401,52 @@ static int whiteheat_attach (struct usb_serial *serial)
command_port = serial->port[COMMAND_PORT];
pipe = usb_sndbulkpipe (serial->dev, command_port->bulk_out_endpointAddress);
pipe = usb_sndbulkpipe(serial->dev,
command_port->bulk_out_endpointAddress);
command = kmalloc(2, GFP_KERNEL);
if (!command)
goto no_command_buffer;
command[0] = WHITEHEAT_GET_HW_INFO;
command[1] = 0;
result = kmalloc(sizeof(*hw_info) + 1, GFP_KERNEL);
if (!result)
goto no_result_buffer;
/*
* When the module is reloaded the firmware is still there and
* the endpoints are still in the usb core unchanged. This is the
* unlinking bug in disguise. Same for the call below.
*/
* unlinking bug in disguise. Same for the call below.
*/
usb_clear_halt(serial->dev, pipe);
ret = usb_bulk_msg (serial->dev, pipe, command, 2, &alen, COMMAND_TIMEOUT_MS);
ret = usb_bulk_msg(serial->dev, pipe, command, 2,
&alen, COMMAND_TIMEOUT_MS);
if (ret) {
err("%s: Couldn't send command [%d]", serial->type->description, ret);
err("%s: Couldn't send command [%d]",
serial->type->description, ret);
goto no_firmware;
} else if (alen != 2) {
err("%s: Send command incomplete [%d]", serial->type->description, alen);
err("%s: Send command incomplete [%d]",
serial->type->description, alen);
goto no_firmware;
}
pipe = usb_rcvbulkpipe (serial->dev, command_port->bulk_in_endpointAddress);
pipe = usb_rcvbulkpipe(serial->dev,
command_port->bulk_in_endpointAddress);
/* See the comment on the usb_clear_halt() above */
usb_clear_halt(serial->dev, pipe);
ret = usb_bulk_msg (serial->dev, pipe, result, sizeof(*hw_info) + 1, &alen, COMMAND_TIMEOUT_MS);
ret = usb_bulk_msg(serial->dev, pipe, result,
sizeof(*hw_info) + 1, &alen, COMMAND_TIMEOUT_MS);
if (ret) {
err("%s: Couldn't get results [%d]", serial->type->description, ret);
err("%s: Couldn't get results [%d]",
serial->type->description, ret);
goto no_firmware;
} else if (alen != sizeof(*hw_info) + 1) {
err("%s: Get results incomplete [%d]", serial->type->description, alen);
err("%s: Get results incomplete [%d]",
serial->type->description, alen);
goto no_firmware;
} else if (result[0] != command[0]) {
err("%s: Command failed [%d]", serial->type->description, result[0]);
err("%s: Command failed [%d]",
serial->type->description, result[0]);
goto no_firmware;
}
@ -436,7 +460,8 @@ static int whiteheat_attach (struct usb_serial *serial)
info = kmalloc(sizeof(struct whiteheat_private), GFP_KERNEL);
if (info == NULL) {
err("%s: Out of memory for port structures\n", serial->type->description);
err("%s: Out of memory for port structures\n",
serial->type->description);
goto no_private;
}
@ -506,9 +531,11 @@ static int whiteheat_attach (struct usb_serial *serial)
usb_set_serial_port_data(port, info);
}
command_info = kmalloc(sizeof(struct whiteheat_command_private), GFP_KERNEL);
command_info = kmalloc(sizeof(struct whiteheat_command_private),
GFP_KERNEL);
if (command_info == NULL) {
err("%s: Out of memory for port structures\n", serial->type->description);
err("%s: Out of memory for port structures\n",
serial->type->description);
goto no_command_private;
}
@ -525,9 +552,12 @@ static int whiteheat_attach (struct usb_serial *serial)
no_firmware:
/* Firmware likely not running */
err("%s: Unable to retrieve firmware version, try replugging\n", serial->type->description);
err("%s: If the firmware is not running (status led not blinking)\n", serial->type->description);
err("%s: please contact support@connecttech.com\n", serial->type->description);
err("%s: Unable to retrieve firmware version, try replugging\n",
serial->type->description);
err("%s: If the firmware is not running (status led not blinking)\n",
serial->type->description);
err("%s: please contact support@connecttech.com\n",
serial->type->description);
kfree(result);
return -ENODEV;
@ -570,7 +600,7 @@ no_command_buffer:
}
static void whiteheat_shutdown (struct usb_serial *serial)
static void whiteheat_shutdown(struct usb_serial *serial)
{
struct usb_serial_port *command_port;
struct usb_serial_port *port;
@ -585,7 +615,7 @@ static void whiteheat_shutdown (struct usb_serial *serial)
/* free up our private data for our command port */
command_port = serial->port[COMMAND_PORT];
kfree (usb_get_serial_port_data(command_port));
kfree(usb_get_serial_port_data(command_port));
for (i = 0; i < serial->num_ports; i++) {
port = serial->port[i];
@ -612,8 +642,7 @@ static void whiteheat_shutdown (struct usb_serial *serial)
return;
}
static int whiteheat_open (struct tty_struct *tty,
static int whiteheat_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file *filp)
{
int retval = 0;
@ -655,7 +684,8 @@ static int whiteheat_open (struct tty_struct *tty,
/* Start reading from the device */
retval = start_port_read(port);
if (retval) {
err("%s - failed submitting read urb, error %d", __func__, retval);
err("%s - failed submitting read urb, error %d",
__func__, retval);
firm_close(port);
stop_command_port(port->serial);
goto exit;
@ -668,7 +698,7 @@ exit:
static void whiteheat_close(struct tty_struct *tty,
struct usb_serial_port *port, struct file * filp)
struct usb_serial_port *port, struct file *filp)
{
struct whiteheat_private *info = usb_get_serial_port_data(port);
struct whiteheat_urb_wrap *wrap;
@ -769,16 +799,19 @@ static int whiteheat_write(struct tty_struct *tty,
wrap = list_entry(tmp, struct whiteheat_urb_wrap, list);
urb = wrap->urb;
bytes = (count > port->bulk_out_size) ? port->bulk_out_size : count;
memcpy (urb->transfer_buffer, buf + sent, bytes);
bytes = (count > port->bulk_out_size) ?
port->bulk_out_size : count;
memcpy(urb->transfer_buffer, buf + sent, bytes);
usb_serial_debug_data(debug, &port->dev, __func__, bytes, urb->transfer_buffer);
usb_serial_debug_data(debug, &port->dev,
__func__, bytes, urb->transfer_buffer);
urb->dev = serial->dev;
urb->transfer_buffer_length = bytes;
result = usb_submit_urb(urb, GFP_ATOMIC);
if (result) {
err("%s - failed submitting write urb, error %d", __func__, result);
err("%s - failed submitting write urb, error %d",
__func__, result);
sent = result;
spin_lock_irqsave(&info->lock, flags);
list_add(tmp, &info->tx_urbs_free);
@ -796,7 +829,6 @@ static int whiteheat_write(struct tty_struct *tty,
return sent;
}
static int whiteheat_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
@ -806,7 +838,7 @@ static int whiteheat_write_room(struct tty_struct *tty)
unsigned long flags;
dbg("%s - port %d", __func__, port->number);
spin_lock_irqsave(&info->lock, flags);
list_for_each(tmp, &info->tx_urbs_free)
room++;
@ -817,8 +849,7 @@ static int whiteheat_write_room(struct tty_struct *tty)
return (room);
}
static int whiteheat_tiocmget (struct tty_struct *tty, struct file *file)
static int whiteheat_tiocmget(struct tty_struct *tty, struct file *file)
{
struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
@ -835,8 +866,7 @@ static int whiteheat_tiocmget (struct tty_struct *tty, struct file *file)
return modem_signals;
}
static int whiteheat_tiocmset (struct tty_struct *tty, struct file *file,
static int whiteheat_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
struct usb_serial_port *port = tty->driver_data;
@ -860,7 +890,8 @@ static int whiteheat_tiocmset (struct tty_struct *tty, struct file *file,
}
static int whiteheat_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg)
static int whiteheat_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
struct usb_serial_port *port = tty->driver_data;
struct serial_struct serstruct;
@ -869,50 +900,38 @@ static int whiteheat_ioctl (struct tty_struct *tty, struct file * file, unsigned
dbg("%s - port %d, cmd 0x%.4x", __func__, port->number, cmd);
switch (cmd) {
case TIOCGSERIAL:
memset(&serstruct, 0, sizeof(serstruct));
serstruct.type = PORT_16654;
serstruct.line = port->serial->minor;
serstruct.port = port->number;
serstruct.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
serstruct.xmit_fifo_size = port->bulk_out_size;
serstruct.custom_divisor = 0;
serstruct.baud_base = 460800;
serstruct.close_delay = CLOSING_DELAY;
serstruct.closing_wait = CLOSING_DELAY;
case TIOCGSERIAL:
memset(&serstruct, 0, sizeof(serstruct));
serstruct.type = PORT_16654;
serstruct.line = port->serial->minor;
serstruct.port = port->number;
serstruct.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
serstruct.xmit_fifo_size = port->bulk_out_size;
serstruct.custom_divisor = 0;
serstruct.baud_base = 460800;
serstruct.close_delay = CLOSING_DELAY;
serstruct.closing_wait = CLOSING_DELAY;
if (copy_to_user(user_arg, &serstruct, sizeof(serstruct)))
return -EFAULT;
break;
case TIOCSSERIAL:
if (copy_from_user(&serstruct, user_arg, sizeof(serstruct)))
return -EFAULT;
/*
* For now this is ignored. dip sets the ASYNC_[V]HI flags
* but this isn't used by us at all. Maybe someone somewhere
* will need the custom_divisor setting.
*/
break;
default:
break;
if (copy_to_user(user_arg, &serstruct, sizeof(serstruct)))
return -EFAULT;
break;
default:
break;
}
return -ENOIOCTLCMD;
}
static void whiteheat_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios)
static void whiteheat_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
{
/* FIXME */
firm_setup_port(tty);
}
static void whiteheat_break_ctl(struct tty_struct *tty, int break_state) {
static void whiteheat_break_ctl(struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
firm_set_break(port, break_state);
}
@ -936,12 +955,12 @@ static int whiteheat_chars_in_buffer(struct tty_struct *tty)
}
spin_unlock_irqrestore(&info->lock, flags);
dbg ("%s - returns %d", __func__, chars);
dbg("%s - returns %d", __func__, chars);
return chars;
}
static void whiteheat_throttle (struct tty_struct *tty)
static void whiteheat_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
@ -957,7 +976,7 @@ static void whiteheat_throttle (struct tty_struct *tty)
}
static void whiteheat_unthrottle (struct tty_struct *tty)
static void whiteheat_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct whiteheat_private *info = usb_get_serial_port_data(port);
@ -1006,7 +1025,7 @@ static void command_port_read_callback(struct urb *urb)
command_info = usb_get_serial_port_data(command_port);
if (!command_info) {
dbg ("%s - command_info is NULL, exiting.", __func__);
dbg("%s - command_info is NULL, exiting.", __func__);
return;
}
if (status) {
@ -1017,7 +1036,8 @@ static void command_port_read_callback(struct urb *urb)
return;
}
usb_serial_debug_data(debug, &command_port->dev, __func__, urb->actual_length, data);
usb_serial_debug_data(debug, &command_port->dev,
__func__, urb->actual_length, data);
if (data[0] == WHITEHEAT_CMD_COMPLETE) {
command_info->command_finished = WHITEHEAT_CMD_COMPLETE;
@ -1026,21 +1046,23 @@ static void command_port_read_callback(struct urb *urb)
command_info->command_finished = WHITEHEAT_CMD_FAILURE;
wake_up(&command_info->wait_command);
} else if (data[0] == WHITEHEAT_EVENT) {
/* These are unsolicited reports from the firmware, hence no waiting command to wakeup */
/* These are unsolicited reports from the firmware, hence no
waiting command to wakeup */
dbg("%s - event received", __func__);
} else if (data[0] == WHITEHEAT_GET_DTR_RTS) {
memcpy(command_info->result_buffer, &data[1], urb->actual_length - 1);
memcpy(command_info->result_buffer, &data[1],
urb->actual_length - 1);
command_info->command_finished = WHITEHEAT_CMD_COMPLETE;
wake_up(&command_info->wait_command);
} else {
} else
dbg("%s - bad reply from firmware", __func__);
}
/* Continue trying to always read */
command_port->read_urb->dev = command_port->serial->dev;
result = usb_submit_urb(command_port->read_urb, GFP_ATOMIC);
if (result)
dbg("%s - failed resubmitting read urb, error %d", __func__, result);
dbg("%s - failed resubmitting read urb, error %d",
__func__, result);
}
@ -1073,7 +1095,8 @@ static void whiteheat_read_callback(struct urb *urb)
return;
}
usb_serial_debug_data(debug, &port->dev, __func__, urb->actual_length, data);
usb_serial_debug_data(debug, &port->dev,
__func__, urb->actual_length, data);
spin_lock(&info->lock);
list_add_tail(&wrap->list, &info->rx_urb_q);
@ -1120,7 +1143,8 @@ static void whiteheat_write_callback(struct urb *urb)
/*****************************************************************************
* Connect Tech's White Heat firmware interface
*****************************************************************************/
static int firm_send_command(struct usb_serial_port *port, __u8 command, __u8 *data, __u8 datasize)
static int firm_send_command(struct usb_serial_port *port, __u8 command,
__u8 *data, __u8 datasize)
{
struct usb_serial_port *command_port;
struct whiteheat_command_private *command_info;
@ -1135,13 +1159,13 @@ static int firm_send_command(struct usb_serial_port *port, __u8 command, __u8 *d
command_info = usb_get_serial_port_data(command_port);
mutex_lock(&command_info->mutex);
command_info->command_finished = false;
transfer_buffer = (__u8 *)command_port->write_urb->transfer_buffer;
transfer_buffer[0] = command;
memcpy (&transfer_buffer[1], data, datasize);
memcpy(&transfer_buffer[1], data, datasize);
command_port->write_urb->transfer_buffer_length = datasize + 1;
command_port->write_urb->dev = port->serial->dev;
retval = usb_submit_urb (command_port->write_urb, GFP_NOIO);
retval = usb_submit_urb(command_port->write_urb, GFP_NOIO);
if (retval) {
dbg("%s - submit urb failed", __func__);
goto exit;
@ -1168,36 +1192,41 @@ static int firm_send_command(struct usb_serial_port *port, __u8 command, __u8 *d
if (command_info->command_finished == WHITEHEAT_CMD_COMPLETE) {
dbg("%s - command completed.", __func__);
switch (command) {
case WHITEHEAT_GET_DTR_RTS:
info = usb_get_serial_port_data(port);
memcpy(&info->mcr, command_info->result_buffer, sizeof(struct whiteheat_dr_info));
case WHITEHEAT_GET_DTR_RTS:
info = usb_get_serial_port_data(port);
memcpy(&info->mcr, command_info->result_buffer,
sizeof(struct whiteheat_dr_info));
break;
}
}
exit:
mutex_unlock(&command_info->mutex);
return retval;
}
static int firm_open(struct usb_serial_port *port) {
static int firm_open(struct usb_serial_port *port)
{
struct whiteheat_simple open_command;
open_command.port = port->number - port->serial->minor + 1;
return firm_send_command(port, WHITEHEAT_OPEN, (__u8 *)&open_command, sizeof(open_command));
return firm_send_command(port, WHITEHEAT_OPEN,
(__u8 *)&open_command, sizeof(open_command));
}
static int firm_close(struct usb_serial_port *port) {
static int firm_close(struct usb_serial_port *port)
{
struct whiteheat_simple close_command;
close_command.port = port->number - port->serial->minor + 1;
return firm_send_command(port, WHITEHEAT_CLOSE, (__u8 *)&close_command, sizeof(close_command));
return firm_send_command(port, WHITEHEAT_CLOSE,
(__u8 *)&close_command, sizeof(close_command));
}
static int firm_setup_port(struct tty_struct *tty) {
static int firm_setup_port(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct whiteheat_port_settings port_settings;
unsigned int cflag = tty->termios->c_cflag;
@ -1206,14 +1235,14 @@ static int firm_setup_port(struct tty_struct *tty) {
/* get the byte size */
switch (cflag & CSIZE) {
case CS5: port_settings.bits = 5; break;
case CS6: port_settings.bits = 6; break;
case CS7: port_settings.bits = 7; break;
default:
case CS8: port_settings.bits = 8; break;
case CS5: port_settings.bits = 5; break;
case CS6: port_settings.bits = 6; break;
case CS7: port_settings.bits = 7; break;
default:
case CS8: port_settings.bits = 8; break;
}
dbg("%s - data bits = %d", __func__, port_settings.bits);
/* determine the parity */
if (cflag & PARENB)
if (cflag & CMSPAR)
@ -1239,7 +1268,8 @@ static int firm_setup_port(struct tty_struct *tty) {
/* figure out the flow control settings */
if (cflag & CRTSCTS)
port_settings.hflow = (WHITEHEAT_HFLOW_CTS | WHITEHEAT_HFLOW_RTS);
port_settings.hflow = (WHITEHEAT_HFLOW_CTS |
WHITEHEAT_HFLOW_RTS);
else
port_settings.hflow = WHITEHEAT_HFLOW_NONE;
dbg("%s - hardware flow control = %s %s %s %s", __func__,
@ -1247,17 +1277,18 @@ static int firm_setup_port(struct tty_struct *tty) {
(port_settings.hflow & WHITEHEAT_HFLOW_RTS) ? "RTS" : "",
(port_settings.hflow & WHITEHEAT_HFLOW_DSR) ? "DSR" : "",
(port_settings.hflow & WHITEHEAT_HFLOW_DTR) ? "DTR" : "");
/* determine software flow control */
if (I_IXOFF(tty))
port_settings.sflow = WHITEHEAT_SFLOW_RXTX;
else
port_settings.sflow = WHITEHEAT_SFLOW_NONE;
dbg("%s - software flow control = %c", __func__, port_settings.sflow);
port_settings.xon = START_CHAR(tty);
port_settings.xoff = STOP_CHAR(tty);
dbg("%s - XON = %2x, XOFF = %2x", __func__, port_settings.xon, port_settings.xoff);
dbg("%s - XON = %2x, XOFF = %2x",
__func__, port_settings.xon, port_settings.xoff);
/* get the baud rate wanted */
port_settings.baud = tty_get_baud_rate(tty);
@ -1267,61 +1298,74 @@ static int firm_setup_port(struct tty_struct *tty) {
tty_encode_baud_rate(tty, port_settings.baud, port_settings.baud);
/* handle any settings that aren't specified in the tty structure */
port_settings.lloop = 0;
/* now send the message to the device */
return firm_send_command(port, WHITEHEAT_SETUP_PORT, (__u8 *)&port_settings, sizeof(port_settings));
return firm_send_command(port, WHITEHEAT_SETUP_PORT,
(__u8 *)&port_settings, sizeof(port_settings));
}
static int firm_set_rts(struct usb_serial_port *port, __u8 onoff) {
static int firm_set_rts(struct usb_serial_port *port, __u8 onoff)
{
struct whiteheat_set_rdb rts_command;
rts_command.port = port->number - port->serial->minor + 1;
rts_command.state = onoff;
return firm_send_command(port, WHITEHEAT_SET_RTS, (__u8 *)&rts_command, sizeof(rts_command));
return firm_send_command(port, WHITEHEAT_SET_RTS,
(__u8 *)&rts_command, sizeof(rts_command));
}
static int firm_set_dtr(struct usb_serial_port *port, __u8 onoff) {
static int firm_set_dtr(struct usb_serial_port *port, __u8 onoff)
{
struct whiteheat_set_rdb dtr_command;
dtr_command.port = port->number - port->serial->minor + 1;
dtr_command.state = onoff;
return firm_send_command(port, WHITEHEAT_SET_RTS, (__u8 *)&dtr_command, sizeof(dtr_command));
return firm_send_command(port, WHITEHEAT_SET_RTS,
(__u8 *)&dtr_command, sizeof(dtr_command));
}
static int firm_set_break(struct usb_serial_port *port, __u8 onoff) {
static int firm_set_break(struct usb_serial_port *port, __u8 onoff)
{
struct whiteheat_set_rdb break_command;
break_command.port = port->number - port->serial->minor + 1;
break_command.state = onoff;
return firm_send_command(port, WHITEHEAT_SET_RTS, (__u8 *)&break_command, sizeof(break_command));
return firm_send_command(port, WHITEHEAT_SET_RTS,
(__u8 *)&break_command, sizeof(break_command));
}
static int firm_purge(struct usb_serial_port *port, __u8 rxtx) {
static int firm_purge(struct usb_serial_port *port, __u8 rxtx)
{
struct whiteheat_purge purge_command;
purge_command.port = port->number - port->serial->minor + 1;
purge_command.what = rxtx;
return firm_send_command(port, WHITEHEAT_PURGE, (__u8 *)&purge_command, sizeof(purge_command));
return firm_send_command(port, WHITEHEAT_PURGE,
(__u8 *)&purge_command, sizeof(purge_command));
}
static int firm_get_dtr_rts(struct usb_serial_port *port) {
static int firm_get_dtr_rts(struct usb_serial_port *port)
{
struct whiteheat_simple get_dr_command;
get_dr_command.port = port->number - port->serial->minor + 1;
return firm_send_command(port, WHITEHEAT_GET_DTR_RTS, (__u8 *)&get_dr_command, sizeof(get_dr_command));
return firm_send_command(port, WHITEHEAT_GET_DTR_RTS,
(__u8 *)&get_dr_command, sizeof(get_dr_command));
}
static int firm_report_tx_done(struct usb_serial_port *port) {
static int firm_report_tx_done(struct usb_serial_port *port)
{
struct whiteheat_simple close_command;
close_command.port = port->number - port->serial->minor + 1;
return firm_send_command(port, WHITEHEAT_REPORT_TX_DONE, (__u8 *)&close_command, sizeof(close_command));
return firm_send_command(port, WHITEHEAT_REPORT_TX_DONE,
(__u8 *)&close_command, sizeof(close_command));
}
@ -1333,7 +1377,7 @@ static int start_command_port(struct usb_serial *serial)
struct usb_serial_port *command_port;
struct whiteheat_command_private *command_info;
int retval = 0;
command_port = serial->port[COMMAND_PORT];
command_info = usb_get_serial_port_data(command_port);
mutex_lock(&command_info->mutex);
@ -1344,7 +1388,8 @@ static int start_command_port(struct usb_serial *serial)
command_port->read_urb->dev = serial->dev;
retval = usb_submit_urb(command_port->read_urb, GFP_KERNEL);
if (retval) {
err("%s - failed submitting read urb, error %d", __func__, retval);
err("%s - failed submitting read urb, error %d",
__func__, retval);
goto exit;
}
}
@ -1414,7 +1459,8 @@ static int start_port_read(struct usb_serial_port *port)
}
static struct whiteheat_urb_wrap *urb_to_wrap(struct urb* urb, struct list_head *head)
static struct whiteheat_urb_wrap *urb_to_wrap(struct urb *urb,
struct list_head *head)
{
struct whiteheat_urb_wrap *wrap;
struct list_head *tmp;
@ -1463,7 +1509,8 @@ static void rx_data_softint(struct work_struct *work)
urb = wrap->urb;
if (tty && urb->actual_length) {
int len = tty_buffer_request_room(tty, urb->actual_length);
int len = tty_buffer_request_room(tty,
urb->actual_length);
/* This stuff can go away now I suspect */
if (unlikely(len < urb->actual_length)) {
spin_lock_irqsave(&info->lock, flags);
@ -1480,7 +1527,8 @@ static void rx_data_softint(struct work_struct *work)
urb->dev = port->serial->dev;
result = usb_submit_urb(urb, GFP_ATOMIC);
if (result) {
err("%s - failed resubmitting read urb, error %d", __func__, result);
err("%s - failed resubmitting read urb, error %d",
__func__, result);
spin_lock_irqsave(&info->lock, flags);
list_add(tmp, &info->rx_urbs_free);
continue;
@ -1499,7 +1547,7 @@ static void rx_data_softint(struct work_struct *work)
/*****************************************************************************
* Connect Tech's White Heat module functions
*****************************************************************************/
static int __init whiteheat_init (void)
static int __init whiteheat_init(void)
{
int retval;
retval = usb_serial_register(&whiteheat_fake_device);
@ -1522,19 +1570,19 @@ failed_fake_register:
}
static void __exit whiteheat_exit (void)
static void __exit whiteheat_exit(void)
{
usb_deregister (&whiteheat_driver);
usb_serial_deregister (&whiteheat_fake_device);
usb_serial_deregister (&whiteheat_device);
usb_deregister(&whiteheat_driver);
usb_serial_deregister(&whiteheat_fake_device);
usb_serial_deregister(&whiteheat_device);
}
module_init(whiteheat_init);
module_exit(whiteheat_exit);
MODULE_AUTHOR( DRIVER_AUTHOR );
MODULE_DESCRIPTION( DRIVER_DESC );
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_FIRMWARE("whiteheat.fw");

78
drivers/usb/serial/whiteheat.h
View File

@ -2,7 +2,7 @@
* USB ConnectTech WhiteHEAT driver
*
* Copyright (C) 2002
* Connect Tech Inc.
* Connect Tech Inc.
*
* Copyright (C) 1999, 2000
* Greg Kroah-Hartman (greg@kroah.com)
@ -12,7 +12,8 @@
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* See Documentation/usb/usb-serial.txt for more information on using this driver
* See Documentation/usb/usb-serial.txt for more information on using this
* driver
*
*/
@ -30,13 +31,16 @@
#define WHITEHEAT_DUMP 7 /* dump memory */
#define WHITEHEAT_STATUS 8 /* get status */
#define WHITEHEAT_PURGE 9 /* clear the UART fifos */
#define WHITEHEAT_GET_DTR_RTS 10 /* get the state of DTR and RTS for a port */
#define WHITEHEAT_GET_HW_INFO 11 /* get EEPROM info and hardware ID */
#define WHITEHEAT_GET_DTR_RTS 10 /* get the state of DTR and RTS
for a port */
#define WHITEHEAT_GET_HW_INFO 11 /* get EEPROM info and
hardware ID */
#define WHITEHEAT_REPORT_TX_DONE 12 /* get the next TX done */
#define WHITEHEAT_EVENT 13 /* unsolicited status events */
#define WHITEHEAT_ECHO 14 /* send data to the indicated IN endpoint */
#define WHITEHEAT_DO_TEST 15 /* perform the specified test */
#define WHITEHEAT_CMD_COMPLETE 16 /* reply for certain commands */
#define WHITEHEAT_ECHO 14 /* send data to the indicated
IN endpoint */
#define WHITEHEAT_DO_TEST 15 /* perform specified test */
#define WHITEHEAT_CMD_COMPLETE 16 /* reply for some commands */
#define WHITEHEAT_CMD_FAILURE 17 /* reply for failed commands */
@ -67,20 +71,28 @@ struct whiteheat_simple {
#define WHITEHEAT_PAR_MARK '1' /* mark (force 1) parity */
#define WHITEHEAT_SFLOW_NONE 'n' /* no software flow control */
#define WHITEHEAT_SFLOW_RX 'r' /* XOFF/ON is sent when RX fills/empties */
#define WHITEHEAT_SFLOW_TX 't' /* when received XOFF/ON will stop/start TX */
#define WHITEHEAT_SFLOW_RX 'r' /* XOFF/ON is sent when RX
fills/empties */
#define WHITEHEAT_SFLOW_TX 't' /* when received XOFF/ON will
stop/start TX */
#define WHITEHEAT_SFLOW_RXTX 'b' /* both SFLOW_RX and SFLOW_TX */
#define WHITEHEAT_HFLOW_NONE 0x00 /* no hardware flow control */
#define WHITEHEAT_HFLOW_RTS_TOGGLE 0x01 /* RTS is on during transmit, off otherwise */
#define WHITEHEAT_HFLOW_DTR 0x02 /* DTR is off/on when RX fills/empties */
#define WHITEHEAT_HFLOW_CTS 0x08 /* when received CTS off/on will stop/start TX */
#define WHITEHEAT_HFLOW_DSR 0x10 /* when received DSR off/on will stop/start TX */
#define WHITEHEAT_HFLOW_RTS 0x80 /* RTS is off/on when RX fills/empties */
#define WHITEHEAT_HFLOW_RTS_TOGGLE 0x01 /* RTS is on during transmit,
off otherwise */
#define WHITEHEAT_HFLOW_DTR 0x02 /* DTR is off/on when RX
fills/empties */
#define WHITEHEAT_HFLOW_CTS 0x08 /* when received CTS off/on
will stop/start TX */
#define WHITEHEAT_HFLOW_DSR 0x10 /* when received DSR off/on
will stop/start TX */
#define WHITEHEAT_HFLOW_RTS 0x80 /* RTS is off/on when RX
fills/empties */
struct whiteheat_port_settings {
__u8 port; /* port number (1 to N) */
__u32 baud; /* any value 7 - 460800, firmware calculates best fit; arrives little endian */
__u32 baud; /* any value 7 - 460800, firmware calculates
best fit; arrives little endian */
__u8 bits; /* 5, 6, 7, or 8 */
__u8 stop; /* 1 or 2, default 1 (2 = 1.5 if bits = 5) */
__u8 parity; /* see WHITEHEAT_PAR_* above */
@ -167,12 +179,14 @@ struct whiteheat_echo {
*/
#define WHITEHEAT_TEST_UART_RW 0x01 /* read/write uart registers */
#define WHITEHEAT_TEST_UART_INTR 0x02 /* uart interrupt */
#define WHITEHEAT_TEST_SETUP_CONT 0x03 /* setup for PORT_CONT/PORT_DISCONT */
#define WHITEHEAT_TEST_SETUP_CONT 0x03 /* setup for
PORT_CONT/PORT_DISCONT */
#define WHITEHEAT_TEST_PORT_CONT 0x04 /* port connect */
#define WHITEHEAT_TEST_PORT_DISCONT 0x05 /* port disconnect */
#define WHITEHEAT_TEST_UART_CLK_START 0x06 /* uart clock test start */
#define WHITEHEAT_TEST_UART_CLK_STOP 0x07 /* uart clock test stop */
#define WHITEHEAT_TEST_MODEM_FT 0x08 /* modem signals, requires a loopback cable/connector */
#define WHITEHEAT_TEST_MODEM_FT 0x08 /* modem signals, requires a
loopback cable/connector */
#define WHITEHEAT_TEST_ERASE_EEPROM 0x09 /* erase eeprom */
#define WHITEHEAT_TEST_READ_EEPROM 0x0a /* read eeprom */
#define WHITEHEAT_TEST_PROGRAM_EEPROM 0x0b /* program eeprom */
@ -198,19 +212,27 @@ struct whiteheat_test {
#define WHITEHEAT_EVENT_CONNECT 0x08 /* connect field is valid */
#define WHITEHEAT_FLOW_NONE 0x00 /* no flow control active */
#define WHITEHEAT_FLOW_HARD_OUT 0x01 /* TX is stopped by CTS (waiting for CTS to go on) */
#define WHITEHEAT_FLOW_HARD_IN 0x02 /* remote TX is stopped by RTS */
#define WHITEHEAT_FLOW_SOFT_OUT 0x04 /* TX is stopped by XOFF received (waiting for XON) */
#define WHITEHEAT_FLOW_SOFT_IN 0x08 /* remote TX is stopped by XOFF transmitted */
#define WHITEHEAT_FLOW_HARD_OUT 0x01 /* TX is stopped by CTS
(waiting for CTS to go on) */
#define WHITEHEAT_FLOW_HARD_IN 0x02 /* remote TX is stopped
by RTS */
#define WHITEHEAT_FLOW_SOFT_OUT 0x04 /* TX is stopped by XOFF
received (waiting for XON) */
#define WHITEHEAT_FLOW_SOFT_IN 0x08 /* remote TX is stopped by XOFF
transmitted */
#define WHITEHEAT_FLOW_TX_DONE 0x80 /* TX has completed */
struct whiteheat_status_info {
__u8 port; /* port number (1 to N) */
__u8 event; /* indicates what the current event is, see WHITEHEAT_EVENT_* above */
__u8 modem; /* modem signal status (copy of uart's MSR register) */
__u8 event; /* indicates what the current event is,
see WHITEHEAT_EVENT_* above */
__u8 modem; /* modem signal status (copy of uart's
MSR register) */
__u8 error; /* line status (copy of uart's LSR register) */
__u8 flow; /* flow control state, see WHITEHEAT_FLOW_* above */
__u8 connect; /* 0 means not connected, non-zero means connected */
__u8 flow; /* flow control state, see WHITEHEAT_FLOW_*
above */
__u8 connect; /* 0 means not connected, non-zero means
connected */
};
@ -256,7 +278,8 @@ struct whiteheat_hw_info {
struct whiteheat_event_info {
__u8 port; /* port number (1 to N) */
__u8 event; /* see whiteheat_status_info.event */
__u8 info; /* see whiteheat_status_info.modem, .error, .flow, .connect */
__u8 info; /* see whiteheat_status_info.modem, .error,
.flow, .connect */
};
@ -269,7 +292,8 @@ struct whiteheat_event_info {
struct whiteheat_test_info {
__u8 port; /* port number (1 to N) */
__u8 test; /* indicates which test this is a response for, see WHITEHEAT_DO_TEST above */
__u8 test; /* indicates which test this is a response for,
see WHITEHEAT_DO_TEST above */
__u8 status; /* see WHITEHEAT_TEST_* above */
__u8 results[32]; /* test-dependent results */
};