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Commit 99495c70 authored by Rene Buergel's avatar Rene Buergel Committed by Greg Kroah-Hartman
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USB: ezusb: remove dependancy on usb_serial 



This patch removes the dependency on the usb_serial interface and names
some magic constants

Signed-off-by: default avatarRené Bürgel <rene.buergel@sohard.de>
--
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8321652a

drivers/usb/serial/ezusb.c

+14 −14
Original line number Diff line number Diff line
@@ -9,24 +9,24 @@ 
 */



#include <linux/kernel.h>

#include <linux/errno.h>

#include <linux/init.h>

#include <linux/slab.h>

#include <linux/tty.h>

#include <linux/module.h>

#include <linux/usb.h>

#include <linux/usb/serial.h>



/* EZ-USB Control and Status Register.  Bit 0 controls 8051 reset */

#define CPUCS_REG    0x7F92



int ezusb_writememory(struct usb_serial *serial, int address,

/* Command for writing to internal memory */

#define WRITE_INT_RAM 0xA0



int ezusb_writememory(struct usb_device *dev, int address,

				unsigned char *data, int length, __u8 request)

{

	int result;

	unsigned char *transfer_buffer;



	if (!serial->dev) {

	if (!dev) {

		printk(KERN_ERR "ezusb: %s - no physical device present, "

		       "failing.\n", __func__);

		return -ENODEV;
@@ -34,25 +34,25 @@ int ezusb_writememory(struct usb_serial *serial, int address, 


	transfer_buffer = kmemdup(data, length, GFP_KERNEL);

	if (!transfer_buffer) {

		dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n",

		dev_err(&dev->dev, "%s - kmalloc(%d) failed.\n",

							__func__, length);

		return -ENOMEM;

	}

	result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),

		     request, 0x40, address, 0, transfer_buffer, length, 3000);

	result = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,

				 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,

				 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_device *dev, unsigned char reset_bit)

{

	int response;



	response = ezusb_writememory(serial, CPUCS_REG, &reset_bit, 1, 0xa0);

	int response = ezusb_writememory(dev, CPUCS_REG, &reset_bit, 1, WRITE_INT_RAM);

	if (response < 0)

		dev_err(&serial->dev->dev, "%s- %d failed\n",

						__func__, reset_bit);

		dev_err(&dev->dev, "%s-%d failed: %d\n",

						__func__, reset_bit, response);

	return response;

}

EXPORT_SYMBOL_GPL(ezusb_set_reset);

drivers/usb/serial/keyspan.c

+3 −3
Original line number Diff line number Diff line
@@ -1241,12 +1241,12 @@ static int keyspan_fake_startup(struct usb_serial *serial) 
	dbg("Uploading Keyspan %s firmware.", fw_name);



		/* download the firmware image */

	response = ezusb_set_reset(serial, 1);

	response = ezusb_set_reset(serial->dev, 1);



	record = (const struct ihex_binrec *)fw->data;



	while (record) {

		response = ezusb_writememory(serial, be32_to_cpu(record->addr),

		response = ezusb_writememory(serial->dev, be32_to_cpu(record->addr),

					     (unsigned char *)record->data,

					     be16_to_cpu(record->len), 0xa0);

		if (response < 0) {
@@ -1260,7 +1260,7 @@ static int keyspan_fake_startup(struct usb_serial *serial) 
	release_firmware(fw);

		/* bring device out of reset. Renumeration will occur in a

		   moment and the new device will bind to the real driver */

	response = ezusb_set_reset(serial, 0);

	response = ezusb_set_reset(serial->dev, 0);



	/* we don't want this device to have a driver assigned to it. */

	return 1;

drivers/usb/serial/keyspan_pda.c

+3 −3
Original line number Diff line number Diff line
@@ -682,7 +682,7 @@ static int keyspan_pda_fake_startup(struct usb_serial *serial) 
	const struct firmware *fw;



	/* download the firmware here ... */

	response = ezusb_set_reset(serial, 1);

	response = ezusb_set_reset(serial->dev, 1);



	if (0) { ; }

#ifdef KEYSPAN
@@ -707,7 +707,7 @@ static int keyspan_pda_fake_startup(struct usb_serial *serial) 
	record = (const struct ihex_binrec *)fw->data;



	while (record) {

		response = ezusb_writememory(serial, be32_to_cpu(record->addr),

		response = ezusb_writememory(serial->dev, be32_to_cpu(record->addr),

					     (unsigned char *)record->data,

					     be16_to_cpu(record->len), 0xa0);

		if (response < 0) {
@@ -722,7 +722,7 @@ static int keyspan_pda_fake_startup(struct usb_serial *serial) 
	release_firmware(fw);

	/* bring device out of reset. Renumeration will occur in a moment

	   and the new device will bind to the real driver */

	response = ezusb_set_reset(serial, 0);

	response = ezusb_set_reset(serial->dev, 0);



	/* we want this device to fail to have a driver assigned to it. */

	return 1;

drivers/usb/serial/whiteheat.c

+13 −13
Original line number Diff line number Diff line
@@ -213,11 +213,11 @@ static int whiteheat_firmware_download(struct usb_serial *serial, 
		goto out;

	}

	ret = 0;

	response = ezusb_set_reset (serial, 1);

	response = ezusb_set_reset(serial->dev, 1);



	record = (const struct ihex_binrec *)loader_fw->data;

	while (record) {

		response = ezusb_writememory (serial, be32_to_cpu(record->addr),

		response = ezusb_writememory(serial->dev, be32_to_cpu(record->addr),

					     (unsigned char *)record->data,

					     be16_to_cpu(record->len), 0xa0);

		if (response < 0) {
@@ -230,13 +230,13 @@ static int whiteheat_firmware_download(struct usb_serial *serial, 
		record = ihex_next_binrec(record);

	}



	response = ezusb_set_reset(serial, 0);

	response = ezusb_set_reset(serial->dev, 0);



	record = (const struct ihex_binrec *)firmware_fw->data;

	while (record && be32_to_cpu(record->addr) < 0x1b40)

		record = ihex_next_binrec(record);

	while (record) {

		response = ezusb_writememory (serial, be32_to_cpu(record->addr),

		response = ezusb_writememory(serial->dev, be32_to_cpu(record->addr),

					     (unsigned char *)record->data,

					     be16_to_cpu(record->len), 0xa3);

		if (response < 0) {
@@ -250,11 +250,11 @@ static int whiteheat_firmware_download(struct usb_serial *serial, 
		++record;

	}



	response = ezusb_set_reset(serial, 1);

	response = ezusb_set_reset(serial->dev, 1);



	record = (const struct ihex_binrec *)firmware_fw->data;

	while (record && be32_to_cpu(record->addr) < 0x1b40) {

		response = ezusb_writememory (serial, be32_to_cpu(record->addr),

		response = ezusb_writememory(serial->dev, be32_to_cpu(record->addr),

					     (unsigned char *)record->data,

					     be16_to_cpu(record->len), 0xa0);

		if (response < 0) {
@@ -268,7 +268,7 @@ static int whiteheat_firmware_download(struct usb_serial *serial, 
		++record;

	}

	ret = 0;

	response = ezusb_set_reset (serial, 0);

	response = ezusb_set_reset(serial->dev, 0);

 out:

	release_firmware(loader_fw);

	release_firmware(firmware_fw);

include/linux/usb/serial.h

+2 −2
Original line number Diff line number Diff line
@@ -301,9 +301,9 @@ extern void usb_serial_port_softint(struct usb_serial_port *port); 
extern int usb_serial_suspend(struct usb_interface *intf, pm_message_t message);

extern int usb_serial_resume(struct usb_interface *intf);



extern int ezusb_writememory(struct usb_serial *serial, int address,

extern int ezusb_writememory(struct usb_device *dev, int address,

			     unsigned char *data, int length, __u8 bRequest);

extern int ezusb_set_reset(struct usb_serial *serial, unsigned char reset_bit);

extern int ezusb_set_reset(struct usb_device *dev, unsigned char reset_bit);



/* USB Serial console functions */

#ifdef CONFIG_USB_SERIAL_CONSOLE