mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 02:35:23 +07:00
a9b57be074
Now that the dbg() macro is no longer being used in the driver, the debug module parameter doesn't do anything at all. So remove it so as to not confuse people. CC: Gary Brubaker <xavyer@ix.netcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
135 lines
3.7 KiB
C
135 lines
3.7 KiB
C
/*
|
|
* USB Empeg empeg-car player driver
|
|
*
|
|
* Copyright (C) 2000, 2001
|
|
* Gary Brubaker (xavyer@ix.netcom.com)
|
|
*
|
|
* Copyright (C) 1999 - 2001
|
|
* Greg Kroah-Hartman (greg@kroah.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License, as published by
|
|
* the Free Software Foundation, version 2.
|
|
*
|
|
* See Documentation/usb/usb-serial.txt for more information on using this
|
|
* driver
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/init.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/tty_driver.h>
|
|
#include <linux/tty_flip.h>
|
|
#include <linux/module.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/uaccess.h>
|
|
#include <linux/usb.h>
|
|
#include <linux/usb/serial.h>
|
|
|
|
/*
|
|
* Version Information
|
|
*/
|
|
#define DRIVER_VERSION "v1.3"
|
|
#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Gary Brubaker <xavyer@ix.netcom.com>"
|
|
#define DRIVER_DESC "USB Empeg Mark I/II Driver"
|
|
|
|
#define EMPEG_VENDOR_ID 0x084f
|
|
#define EMPEG_PRODUCT_ID 0x0001
|
|
|
|
/* function prototypes for an empeg-car player */
|
|
static int empeg_startup(struct usb_serial *serial);
|
|
static void empeg_init_termios(struct tty_struct *tty);
|
|
|
|
static const struct usb_device_id id_table[] = {
|
|
{ USB_DEVICE(EMPEG_VENDOR_ID, EMPEG_PRODUCT_ID) },
|
|
{ } /* Terminating entry */
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(usb, id_table);
|
|
|
|
static struct usb_serial_driver empeg_device = {
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "empeg",
|
|
},
|
|
.id_table = id_table,
|
|
.num_ports = 1,
|
|
.bulk_out_size = 256,
|
|
.throttle = usb_serial_generic_throttle,
|
|
.unthrottle = usb_serial_generic_unthrottle,
|
|
.attach = empeg_startup,
|
|
.init_termios = empeg_init_termios,
|
|
};
|
|
|
|
static struct usb_serial_driver * const serial_drivers[] = {
|
|
&empeg_device, NULL
|
|
};
|
|
|
|
static int empeg_startup(struct usb_serial *serial)
|
|
{
|
|
int r;
|
|
|
|
if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
|
|
dev_err(&serial->dev->dev, "active config #%d != 1 ??\n",
|
|
serial->dev->actconfig->desc.bConfigurationValue);
|
|
return -ENODEV;
|
|
}
|
|
|
|
r = usb_reset_configuration(serial->dev);
|
|
|
|
/* continue on with initialization */
|
|
return r;
|
|
}
|
|
|
|
static void empeg_init_termios(struct tty_struct *tty)
|
|
{
|
|
struct ktermios *termios = tty->termios;
|
|
|
|
/*
|
|
* The empeg-car player wants these particular tty settings.
|
|
* You could, for example, change the baud rate, however the
|
|
* player only supports 115200 (currently), so there is really
|
|
* no point in support for changes to the tty settings.
|
|
* (at least for now)
|
|
*
|
|
* The default requirements for this device are:
|
|
*/
|
|
termios->c_iflag
|
|
&= ~(IGNBRK /* disable ignore break */
|
|
| BRKINT /* disable break causes interrupt */
|
|
| PARMRK /* disable mark parity errors */
|
|
| ISTRIP /* disable clear high bit of input characters */
|
|
| INLCR /* disable translate NL to CR */
|
|
| IGNCR /* disable ignore CR */
|
|
| ICRNL /* disable translate CR to NL */
|
|
| IXON); /* disable enable XON/XOFF flow control */
|
|
|
|
termios->c_oflag
|
|
&= ~OPOST; /* disable postprocess output characters */
|
|
|
|
termios->c_lflag
|
|
&= ~(ECHO /* disable echo input characters */
|
|
| ECHONL /* disable echo new line */
|
|
| ICANON /* disable erase, kill, werase, and rprnt special characters */
|
|
| ISIG /* disable interrupt, quit, and suspend special characters */
|
|
| IEXTEN); /* disable non-POSIX special characters */
|
|
|
|
termios->c_cflag
|
|
&= ~(CSIZE /* no size */
|
|
| PARENB /* disable parity bit */
|
|
| CBAUD); /* clear current baud rate */
|
|
|
|
termios->c_cflag
|
|
|= CS8; /* character size 8 bits */
|
|
|
|
tty_encode_baud_rate(tty, 115200, 115200);
|
|
}
|
|
|
|
module_usb_serial_driver(serial_drivers, id_table);
|
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|