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1/*
2 * USB Empeg empeg-car player driver
3 *
4 * Copyright (C) 2000, 2001
5 * Gary Brubaker (xavyer@ix.netcom.com)
6 *
7 * Copyright (C) 1999 - 2001
8 * Greg Kroah-Hartman (greg@kroah.com)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License, as published by
12 * the Free Software Foundation, version 2.
13 *
14 * See Documentation/usb/usb-serial.txt for more information on using this
15 * driver
16 */
17
18#include <linux/kernel.h>
19#include <linux/errno.h>
20#include <linux/slab.h>
21#include <linux/tty.h>
22#include <linux/tty_driver.h>
23#include <linux/tty_flip.h>
24#include <linux/module.h>
25#include <linux/spinlock.h>
26#include <linux/uaccess.h>
27#include <linux/usb.h>
28#include <linux/usb/serial.h>
29
30#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Gary Brubaker <xavyer@ix.netcom.com>"
31#define DRIVER_DESC "USB Empeg Mark I/II Driver"
32
33#define EMPEG_VENDOR_ID 0x084f
34#define EMPEG_PRODUCT_ID 0x0001
35
36/* function prototypes for an empeg-car player */
37static int empeg_startup(struct usb_serial *serial);
38static void empeg_init_termios(struct tty_struct *tty);
39
40static const struct usb_device_id id_table[] = {
41 { USB_DEVICE(EMPEG_VENDOR_ID, EMPEG_PRODUCT_ID) },
42 { } /* Terminating entry */
43};
44
45MODULE_DEVICE_TABLE(usb, id_table);
46
47static struct usb_serial_driver empeg_device = {
48 .driver = {
49 .owner = THIS_MODULE,
50 .name = "empeg",
51 },
52 .id_table = id_table,
53 .num_ports = 1,
54 .bulk_out_size = 256,
55 .throttle = usb_serial_generic_throttle,
56 .unthrottle = usb_serial_generic_unthrottle,
57 .attach = empeg_startup,
58 .init_termios = empeg_init_termios,
59};
60
61static struct usb_serial_driver * const serial_drivers[] = {
62 &empeg_device, NULL
63};
64
65static int empeg_startup(struct usb_serial *serial)
66{
67 int r;
68
69 if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
70 dev_err(&serial->dev->dev, "active config #%d != 1 ??\n",
71 serial->dev->actconfig->desc.bConfigurationValue);
72 return -ENODEV;
73 }
74
75 r = usb_reset_configuration(serial->dev);
76
77 /* continue on with initialization */
78 return r;
79}
80
81static void empeg_init_termios(struct tty_struct *tty)
82{
83 struct ktermios *termios = &tty->termios;
84
85 /*
86 * The empeg-car player wants these particular tty settings.
87 * You could, for example, change the baud rate, however the
88 * player only supports 115200 (currently), so there is really
89 * no point in support for changes to the tty settings.
90 * (at least for now)
91 *
92 * The default requirements for this device are:
93 */
94 termios->c_iflag
95 &= ~(IGNBRK /* disable ignore break */
96 | BRKINT /* disable break causes interrupt */
97 | PARMRK /* disable mark parity errors */
98 | ISTRIP /* disable clear high bit of input characters */
99 | INLCR /* disable translate NL to CR */
100 | IGNCR /* disable ignore CR */
101 | ICRNL /* disable translate CR to NL */
102 | IXON); /* disable enable XON/XOFF flow control */
103
104 termios->c_oflag
105 &= ~OPOST; /* disable postprocess output characters */
106
107 termios->c_lflag
108 &= ~(ECHO /* disable echo input characters */
109 | ECHONL /* disable echo new line */
110 | ICANON /* disable erase, kill, werase, and rprnt special characters */
111 | ISIG /* disable interrupt, quit, and suspend special characters */
112 | IEXTEN); /* disable non-POSIX special characters */
113
114 termios->c_cflag
115 &= ~(CSIZE /* no size */
116 | PARENB /* disable parity bit */
117 | CBAUD); /* clear current baud rate */
118
119 termios->c_cflag
120 |= CS8; /* character size 8 bits */
121
122 tty_encode_baud_rate(tty, 115200, 115200);
123}
124
125module_usb_serial_driver(serial_drivers, id_table);
126
127MODULE_AUTHOR(DRIVER_AUTHOR);
128MODULE_DESCRIPTION(DRIVER_DESC);
129MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * USB Empeg empeg-car player driver
4 *
5 * Copyright (C) 2000, 2001
6 * Gary Brubaker (xavyer@ix.netcom.com)
7 *
8 * Copyright (C) 1999 - 2001
9 * Greg Kroah-Hartman (greg@kroah.com)
10 *
11 * See Documentation/usb/usb-serial.rst for more information on using this
12 * driver
13 */
14
15#include <linux/kernel.h>
16#include <linux/errno.h>
17#include <linux/slab.h>
18#include <linux/tty.h>
19#include <linux/tty_driver.h>
20#include <linux/tty_flip.h>
21#include <linux/module.h>
22#include <linux/spinlock.h>
23#include <linux/uaccess.h>
24#include <linux/usb.h>
25#include <linux/usb/serial.h>
26
27#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Gary Brubaker <xavyer@ix.netcom.com>"
28#define DRIVER_DESC "USB Empeg Mark I/II Driver"
29
30#define EMPEG_VENDOR_ID 0x084f
31#define EMPEG_PRODUCT_ID 0x0001
32
33/* function prototypes for an empeg-car player */
34static int empeg_startup(struct usb_serial *serial);
35static void empeg_init_termios(struct tty_struct *tty);
36
37static const struct usb_device_id id_table[] = {
38 { USB_DEVICE(EMPEG_VENDOR_ID, EMPEG_PRODUCT_ID) },
39 { } /* Terminating entry */
40};
41
42MODULE_DEVICE_TABLE(usb, id_table);
43
44static struct usb_serial_driver empeg_device = {
45 .driver = {
46 .name = "empeg",
47 },
48 .id_table = id_table,
49 .num_ports = 1,
50 .bulk_out_size = 256,
51 .throttle = usb_serial_generic_throttle,
52 .unthrottle = usb_serial_generic_unthrottle,
53 .attach = empeg_startup,
54 .init_termios = empeg_init_termios,
55};
56
57static struct usb_serial_driver * const serial_drivers[] = {
58 &empeg_device, NULL
59};
60
61static int empeg_startup(struct usb_serial *serial)
62{
63 int r;
64
65 if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
66 dev_err(&serial->dev->dev, "active config #%d != 1 ??\n",
67 serial->dev->actconfig->desc.bConfigurationValue);
68 return -ENODEV;
69 }
70
71 r = usb_reset_configuration(serial->dev);
72
73 /* continue on with initialization */
74 return r;
75}
76
77static void empeg_init_termios(struct tty_struct *tty)
78{
79 struct ktermios *termios = &tty->termios;
80
81 /*
82 * The empeg-car player wants these particular tty settings.
83 * You could, for example, change the baud rate, however the
84 * player only supports 115200 (currently), so there is really
85 * no point in support for changes to the tty settings.
86 * (at least for now)
87 *
88 * The default requirements for this device are:
89 */
90 termios->c_iflag
91 &= ~(IGNBRK /* disable ignore break */
92 | BRKINT /* disable break causes interrupt */
93 | PARMRK /* disable mark parity errors */
94 | ISTRIP /* disable clear high bit of input characters */
95 | INLCR /* disable translate NL to CR */
96 | IGNCR /* disable ignore CR */
97 | ICRNL /* disable translate CR to NL */
98 | IXON); /* disable enable XON/XOFF flow control */
99
100 termios->c_oflag
101 &= ~OPOST; /* disable postprocess output characters */
102
103 termios->c_lflag
104 &= ~(ECHO /* disable echo input characters */
105 | ECHONL /* disable echo new line */
106 | ICANON /* disable erase, kill, werase, and rprnt special characters */
107 | ISIG /* disable interrupt, quit, and suspend special characters */
108 | IEXTEN); /* disable non-POSIX special characters */
109
110 termios->c_cflag
111 &= ~(CSIZE /* no size */
112 | PARENB /* disable parity bit */
113 | CBAUD); /* clear current baud rate */
114
115 termios->c_cflag
116 |= CS8; /* character size 8 bits */
117
118 tty_encode_baud_rate(tty, 115200, 115200);
119}
120
121module_usb_serial_driver(serial_drivers, id_table);
122
123MODULE_AUTHOR(DRIVER_AUTHOR);
124MODULE_DESCRIPTION(DRIVER_DESC);
125MODULE_LICENSE("GPL v2");