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Commit d60d4396 authored by Alan Cox's avatar Alan Cox Committed by Linus Torvalds
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tty-usb-visor: Coding style 



Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 3a262b2e

drivers/usb/serial/visor.c

+191 −149
Original line number Diff line number Diff line
@@ -9,7 +9,8 @@ 
 *	modify it under the terms of the GNU General Public License version

 *	2 as published by the Free Software Foundation.

 *

 * 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

 *

 */
@@ -23,7 +24,7 @@ 
#include <linux/module.h>

#include <linux/moduleparam.h>

#include <linux/spinlock.h>

#include <asm/uaccess.h>

#include <linux/uaccess.h>

#include <linux/usb.h>

#include <linux/usb/serial.h>

#include "visor.h"
@@ -35,13 +36,17 @@ 
#define DRIVER_DESC "USB HandSpring Visor / Palm OS driver"



/* function prototypes for a handspring visor */

static int  visor_open		(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);

static void visor_close		(struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);

static int  visor_write		(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count);

static int  visor_open(struct tty_struct *tty, struct usb_serial_port *port,

					struct file *filp);

static void visor_close(struct tty_struct *tty, struct usb_serial_port *port,

					struct file *filp);

static int  visor_write(struct tty_struct *tty, struct usb_serial_port *port,

					const unsigned char *buf, int count);

static int  visor_write_room(struct tty_struct *tty);

static void visor_throttle(struct tty_struct *tty);

static void visor_unthrottle(struct tty_struct *tty);

static int  visor_probe		(struct usb_serial *serial, const struct usb_device_id *id);

static int  visor_probe(struct usb_serial *serial,

					const struct usb_device_id *id);

static int  visor_calc_num_ports(struct usb_serial *serial);

static void visor_shutdown(struct usb_serial *serial);

static void visor_write_bulk_callback(struct urb *urb);
@@ -50,8 +55,10 @@ static void visor_read_int_callback (struct urb *urb); 
static int  clie_3_5_startup(struct usb_serial *serial);

static int  treo_attach(struct usb_serial *serial);

static int clie_5_attach(struct usb_serial *serial);

static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_id *id);

static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_id *id);

static int palm_os_3_probe(struct usb_serial *serial,

					const struct usb_device_id *id);

static int palm_os_4_probe(struct usb_serial *serial,

					const struct usb_device_id *id);



/* Parameters that may be passed into the module. */

static int debug;
@@ -178,7 +185,8 @@ static struct usb_driver visor_driver = { 
	.no_dynamic_id = 	1,

};



/* All of the device info needed for the Handspring Visor, and Palm 4.0 devices */

/* All of the device info needed for the Handspring Visor,

   and Palm 4.0 devices */

static struct usb_serial_driver handspring_device = {

	.driver = {

		.owner =	THIS_MODULE,
@@ -266,7 +274,8 @@ static int stats; 
/******************************************************************************

 * Handspring Visor specific driver functions

 ******************************************************************************/

static int visor_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp)

static int visor_open(struct tty_struct *tty, struct usb_serial_port *port,

							struct file *filp)

{

	struct usb_serial *serial = port->serial;

	struct visor_private *priv = usb_get_serial_port_data(port);
@@ -304,7 +313,8 @@ static int visor_open (struct tty_struct *tty, struct usb_serial_port *port, str 
			   visor_read_bulk_callback, port);

	result = usb_submit_urb(port->read_urb, GFP_KERNEL);

	if (result) {

		dev_err(&port->dev, "%s - failed submitting read urb, error %d\n",

		dev_err(&port->dev,

			"%s - failed submitting read urb, error %d\n",

							__func__, result);

		goto exit;

	}
@@ -313,7 +323,8 @@ static int visor_open (struct tty_struct *tty, struct usb_serial_port *port, str 
		dbg("%s - adding interrupt input for treo", __func__);

		result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);

		if (result)

			dev_err(&port->dev, "%s - failed submitting interrupt urb, error %d\n",

			dev_err(&port->dev,

			    "%s - failed submitting interrupt urb, error %d\n",

							__func__, result);

	}

exit:
@@ -402,7 +413,8 @@ static int visor_write(struct tty_struct *tty, struct usb_serial_port *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",

		dev_err(&port->dev,

		   "%s - usb_submit_urb(write bulk) failed with status = %d\n",

							__func__, status);

		count = status;

		goto error;
@@ -497,11 +509,13 @@ static void visor_read_bulk_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);



	tty = port->port.tty;

	if (tty && urb->actual_length) {

		available_room = tty_buffer_request_room(tty, urb->actual_length);

		available_room = tty_buffer_request_room(tty,

							urb->actual_length);

		if (available_room) {

			tty_insert_flip_string(tty, data, available_room);

			tty_flip_buffer_push(tty);
@@ -523,10 +537,11 @@ static void visor_read_bulk_callback (struct urb *urb) 
				   visor_read_bulk_callback, port);

		result = usb_submit_urb(port->read_urb, GFP_ATOMIC);

		if (result)

			dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", __func__, result);

	} else {

			dev_err(&port->dev,

			    "%s - failed resubmitting read urb, error %d\n",

							__func__, result);

	} else

		priv->actually_throttled = 1;

	}

	spin_unlock(&priv->lock);

}
@@ -566,7 +581,8 @@ static void visor_read_int_callback (struct urb *urb) 
exit:

	result = usb_submit_urb(urb, GFP_ATOMIC);

	if (result)

		dev_err(&urb->dev->dev, "%s - Error %d submitting interrupt urb\n",

		dev_err(&urb->dev->dev,

				"%s - Error %d submitting interrupt urb\n",

							__func__, result);

}
@@ -599,10 +615,13 @@ static void visor_unthrottle (struct tty_struct *tty) 
	port->read_urb->dev = port->serial->dev;

	result = usb_submit_urb(port->read_urb, GFP_ATOMIC);

	if (result)

		dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __func__, result);

		dev_err(&port->dev,

			"%s - failed submitting read urb, error %d\n",

							__func__, result);

}



static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_id *id)

static int palm_os_3_probe(struct usb_serial *serial,

						const struct usb_device_id *id)

{

	struct device *dev = &serial->dev->dev;

	struct visor_connection_info *connection_info;
@@ -634,11 +653,13 @@ static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_i 
	}



	if (retval == sizeof(*connection_info)) {

	        connection_info = (struct visor_connection_info *)transfer_buffer;

			connection_info = (struct visor_connection_info *)

							transfer_buffer;



		num_ports = le16_to_cpu(connection_info->num_ports);

		for (i = 0; i < num_ports; ++i) {

			switch (connection_info->connections[i].port_function_id) {

			switch (

			   connection_info->connections[i].port_function_id) {

			case VISOR_FUNCTION_GENERIC:

				string = "Generic";

				break;
@@ -681,7 +702,8 @@ static int palm_os_3_probe (struct usb_serial *serial, const struct usb_device_i 
	 */

	usb_set_serial_data(serial, (void *)(long)num_ports);



	/* ask for the number of bytes available, but ignore the response as it is broken */

	/* ask for the number of bytes available, but ignore the

	   response as it is broken */

	retval = usb_control_msg(serial->dev,

				  usb_rcvctrlpipe(serial->dev, 0),

				  VISOR_REQUEST_BYTES_AVAILABLE,
@@ -698,7 +720,8 @@ exit: 
	return retval;

}



static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_id *id)

static int palm_os_4_probe(struct usb_serial *serial,

						const struct usb_device_id *id)

{

	struct device *dev = &serial->dev->dev;

	struct palm_ext_connection_info *connection_info;
@@ -731,10 +754,12 @@ static int palm_os_4_probe (struct usb_serial *serial, const struct usb_device_i 
}





static int visor_probe (struct usb_serial *serial, const struct usb_device_id *id)

static int visor_probe(struct usb_serial *serial,

					const struct usb_device_id *id)

{

	int retval = 0;

	int (*startup) (struct usb_serial *serial, const struct usb_device_id *id);

	int (*startup)(struct usb_serial *serial,

					const struct usb_device_id *id);



	dbg("%s", __func__);
@@ -801,11 +826,13 @@ static int clie_3_5_startup (struct usb_serial *serial) 
				  USB_REQ_GET_CONFIGURATION, USB_DIR_IN,

				  0, 0, &data, 1, 3000);

	if (result < 0) {

		dev_err(dev, "%s: get config number failed: %d\n", __func__, result);

		dev_err(dev, "%s: get config number failed: %d\n",

							__func__, result);

		return result;

	}

	if (result != 1) {

		dev_err(dev, "%s: get config number bad return length: %d\n", __func__, result);

		dev_err(dev, "%s: get config number bad return length: %d\n",

							__func__, result);

		return -EIO;

	}
@@ -815,11 +842,14 @@ static int clie_3_5_startup (struct usb_serial *serial) 
				  USB_DIR_IN | USB_RECIP_INTERFACE,

				  0, 0, &data, 1, 3000);

	if (result < 0) {

		dev_err(dev, "%s: get interface number failed: %d\n", __func__, result);

		dev_err(dev, "%s: get interface number failed: %d\n",

							__func__, result);

		return result;

	}

	if (result != 1) {

		dev_err(dev, "%s: get interface number bad return length: %d\n", __func__, result);

		dev_err(dev,

			"%s: get interface number bad return length: %d\n",

							__func__, result);

		return -EIO;

	}
@@ -832,8 +862,10 @@ static int treo_attach (struct usb_serial *serial) 


	/* Only do this endpoint hack for the Handspring devices with

	 * interrupt in endpoints, which for now are the Treo devices. */

	if (!((le16_to_cpu(serial->dev->descriptor.idVendor) == HANDSPRING_VENDOR_ID) ||

	      (le16_to_cpu(serial->dev->descriptor.idVendor) == KYOCERA_VENDOR_ID)) ||

	if (!((le16_to_cpu(serial->dev->descriptor.idVendor)

						== HANDSPRING_VENDOR_ID) ||

		(le16_to_cpu(serial->dev->descriptor.idVendor)

						== KYOCERA_VENDOR_ID)) ||

		(serial->num_interrupt_in == 0))

		goto generic_startup;
@@ -847,12 +879,15 @@ static int treo_attach (struct usb_serial *serial) 
	* apps that want to communicate on the second port.

	*/

#define COPY_PORT(dest, src)						\

	do { \

		dest->read_urb = src->read_urb;				\

		dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress;\

		dest->bulk_in_buffer = src->bulk_in_buffer;		\

		dest->interrupt_in_urb = src->interrupt_in_urb;		\

	dest->interrupt_in_endpointAddress = src->interrupt_in_endpointAddress;	\

	dest->interrupt_in_buffer = src->interrupt_in_buffer;

		dest->interrupt_in_endpointAddress = \

					src->interrupt_in_endpointAddress;\

		dest->interrupt_in_buffer = src->interrupt_in_buffer;	\

	} while (0);



	swap_port = kmalloc(sizeof(*swap_port), GFP_KERNEL);

	if (!swap_port)
@@ -871,8 +906,9 @@ static int clie_5_attach (struct usb_serial *serial) 
	dbg("%s", __func__);



	/* TH55 registers 2 ports.

	   Communication in from the UX50/TH55 uses bulk_in_endpointAddress from port 0 

	   Communication out to the UX50/TH55 uses bulk_out_endpointAddress from port 1 

	   Communication in from the UX50/TH55 uses bulk_in_endpointAddress

	   from port 0. Communication out to the UX50/TH55 uses

	   bulk_out_endpointAddress from port 1



	   Lets do a quick and dirty mapping

	 */
@@ -882,7 +918,8 @@ static int clie_5_attach (struct usb_serial *serial) 
		return -1;



	/* port 0 now uses the modified endpoint Address */

	serial->port[0]->bulk_out_endpointAddress = serial->port[1]->bulk_out_endpointAddress;

	serial->port[0]->bulk_out_endpointAddress =

				serial->port[1]->bulk_out_endpointAddress;



	return generic_startup(serial);

}
@@ -907,10 +944,14 @@ static int __init visor_init (void) 
{

	int i, retval;

	/* Only if parameters were passed to us */

	if ((vendor>0) && (product>0)) {

		struct usb_device_id usb_dev_temp[]=

			{{USB_DEVICE(vendor, product),

			.driver_info = (kernel_ulong_t)&palm_os_4_probe }};

	if (vendor > 0 && product > 0) {

		struct usb_device_id usb_dev_temp[] = {

			{

				USB_DEVICE(vendor, product),

				.driver_info =

					(kernel_ulong_t) &palm_os_4_probe

			}

		};



		/* Find the last entry in id_table */

		for (i = 0;; i++) {
@@ -926,7 +967,8 @@ static int __init visor_init (void) 
				break;

			}

		}

		info("Untested USB device specified at time of module insertion");

		info(

		  "Untested USB device specified at time of module insertion");

		info("Warning: This is not guaranteed to work");

		info("Using a newer kernel is preferred to this method");

		info("Adding Palm OS protocol 4.x support for unknown device: 0x%x/0x%x",