blob: 4abac28b5992a1f128005f5f7df103118a39b081 [file] [log] [blame]
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +01001/*
2 * spcp8x5 USB to serial adaptor driver
3 *
Johan Hovolde1ed2122013-03-21 12:37:30 +01004 * Copyright (C) 2010-2013 Johan Hovold (jhovold@gmail.com)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +01005 * Copyright (C) 2006 Linxb (xubin.lin@worldplus.com.cn)
6 * Copyright (C) 2006 S1 Corp.
7 *
8 * Original driver for 2.6.10 pl2303 driver by
9 * Greg Kroah-Hartman (greg@kroah.com)
10 * Changes for 2.6.20 by Harald Klein <hari@vt100.at>
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +010016 */
17#include <linux/kernel.h>
18#include <linux/errno.h>
19#include <linux/init.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/usb.h>
27#include <linux/usb/serial.h>
28
Johan Hovold2d816ac2013-03-21 12:37:26 +010029#define DRIVER_DESC "SPCP8x5 USB to serial adaptor driver"
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +010030
Johan Hovold4d631432013-03-21 12:37:29 +010031#define SPCP825_QUIRK_NO_UART_STATUS 0x01
32#define SPCP825_QUIRK_NO_WORK_MODE 0x02
33
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +010034#define SPCP8x5_007_VID 0x04FC
35#define SPCP8x5_007_PID 0x0201
36#define SPCP8x5_008_VID 0x04fc
37#define SPCP8x5_008_PID 0x0235
38#define SPCP8x5_PHILIPS_VID 0x0471
39#define SPCP8x5_PHILIPS_PID 0x081e
40#define SPCP8x5_INTERMATIC_VID 0x04FC
41#define SPCP8x5_INTERMATIC_PID 0x0204
42#define SPCP8x5_835_VID 0x04fc
43#define SPCP8x5_835_PID 0x0231
44
Németh Márton7d40d7e2010-01-10 15:34:24 +010045static const struct usb_device_id id_table[] = {
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +010046 { USB_DEVICE(SPCP8x5_PHILIPS_VID , SPCP8x5_PHILIPS_PID)},
47 { USB_DEVICE(SPCP8x5_INTERMATIC_VID, SPCP8x5_INTERMATIC_PID)},
48 { USB_DEVICE(SPCP8x5_835_VID, SPCP8x5_835_PID)},
49 { USB_DEVICE(SPCP8x5_008_VID, SPCP8x5_008_PID)},
Johan Hovold4d631432013-03-21 12:37:29 +010050 { USB_DEVICE(SPCP8x5_007_VID, SPCP8x5_007_PID),
51 .driver_info = SPCP825_QUIRK_NO_UART_STATUS |
52 SPCP825_QUIRK_NO_WORK_MODE },
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +010053 { } /* Terminating entry */
54};
55MODULE_DEVICE_TABLE(usb, id_table);
56
57struct spcp8x5_usb_ctrl_arg {
Johan Hovold2d816ac2013-03-21 12:37:26 +010058 u8 type;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +010059 u8 cmd;
60 u8 cmd_type;
61 u16 value;
62 u16 index;
63 u16 length;
64};
65
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +010066
67/* spcp8x5 spec register define */
68#define MCR_CONTROL_LINE_RTS 0x02
69#define MCR_CONTROL_LINE_DTR 0x01
70#define MCR_DTR 0x01
71#define MCR_RTS 0x02
72
73#define MSR_STATUS_LINE_DCD 0x80
74#define MSR_STATUS_LINE_RI 0x40
75#define MSR_STATUS_LINE_DSR 0x20
76#define MSR_STATUS_LINE_CTS 0x10
77
78/* verdor command here , we should define myself */
79#define SET_DEFAULT 0x40
80#define SET_DEFAULT_TYPE 0x20
81
82#define SET_UART_FORMAT 0x40
83#define SET_UART_FORMAT_TYPE 0x21
84#define SET_UART_FORMAT_SIZE_5 0x00
85#define SET_UART_FORMAT_SIZE_6 0x01
86#define SET_UART_FORMAT_SIZE_7 0x02
87#define SET_UART_FORMAT_SIZE_8 0x03
88#define SET_UART_FORMAT_STOP_1 0x00
89#define SET_UART_FORMAT_STOP_2 0x04
90#define SET_UART_FORMAT_PAR_NONE 0x00
91#define SET_UART_FORMAT_PAR_ODD 0x10
92#define SET_UART_FORMAT_PAR_EVEN 0x30
93#define SET_UART_FORMAT_PAR_MASK 0xD0
94#define SET_UART_FORMAT_PAR_SPACE 0x90
95
96#define GET_UART_STATUS_TYPE 0xc0
97#define GET_UART_STATUS 0x22
98#define GET_UART_STATUS_MSR 0x06
99
100#define SET_UART_STATUS 0x40
101#define SET_UART_STATUS_TYPE 0x23
102#define SET_UART_STATUS_MCR 0x0004
103#define SET_UART_STATUS_MCR_DTR 0x01
104#define SET_UART_STATUS_MCR_RTS 0x02
105#define SET_UART_STATUS_MCR_LOOP 0x10
106
107#define SET_WORKING_MODE 0x40
108#define SET_WORKING_MODE_TYPE 0x24
109#define SET_WORKING_MODE_U2C 0x00
110#define SET_WORKING_MODE_RS485 0x01
111#define SET_WORKING_MODE_PDMA 0x02
112#define SET_WORKING_MODE_SPP 0x03
113
114#define SET_FLOWCTL_CHAR 0x40
115#define SET_FLOWCTL_CHAR_TYPE 0x25
116
117#define GET_VERSION 0xc0
118#define GET_VERSION_TYPE 0x26
119
120#define SET_REGISTER 0x40
121#define SET_REGISTER_TYPE 0x27
122
123#define GET_REGISTER 0xc0
124#define GET_REGISTER_TYPE 0x28
125
126#define SET_RAM 0x40
127#define SET_RAM_TYPE 0x31
128
129#define GET_RAM 0xc0
130#define GET_RAM_TYPE 0x32
131
132/* how come ??? */
133#define UART_STATE 0x08
Libor Pechacekd14fc1a2011-01-14 14:30:21 +0100134#define UART_STATE_TRANSIENT_MASK 0x75
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100135#define UART_DCD 0x01
136#define UART_DSR 0x02
137#define UART_BREAK_ERROR 0x04
138#define UART_RING 0x08
139#define UART_FRAME_ERROR 0x10
140#define UART_PARITY_ERROR 0x20
141#define UART_OVERRUN_ERROR 0x40
142#define UART_CTS 0x80
143
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100144struct spcp8x5_private {
Johan Hovold4d631432013-03-21 12:37:29 +0100145 unsigned quirks;
Johan Hovold2d816ac2013-03-21 12:37:26 +0100146 spinlock_t lock;
Johan Hovold2d816ac2013-03-21 12:37:26 +0100147 u8 line_control;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100148};
149
Johan Hovold4d631432013-03-21 12:37:29 +0100150static int spcp8x5_probe(struct usb_serial *serial,
151 const struct usb_device_id *id)
152{
153 usb_set_serial_data(serial, (void *)id);
154
155 return 0;
156}
157
Johan Hovoldbf90ff52012-10-17 16:31:33 +0200158static int spcp8x5_port_probe(struct usb_serial_port *port)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100159{
Johan Hovold4d631432013-03-21 12:37:29 +0100160 const struct usb_device_id *id = usb_get_serial_data(port->serial);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100161 struct spcp8x5_private *priv;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100162
Johan Hovoldbf90ff52012-10-17 16:31:33 +0200163 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
164 if (!priv)
165 return -ENOMEM;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100166
Johan Hovoldbf90ff52012-10-17 16:31:33 +0200167 spin_lock_init(&priv->lock);
Johan Hovold4d631432013-03-21 12:37:29 +0100168 priv->quirks = id->driver_info;
Johan Hovoldbf90ff52012-10-17 16:31:33 +0200169
Johan Hovold2d816ac2013-03-21 12:37:26 +0100170 usb_set_serial_port_data(port, priv);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100171
Johan Hovoldd7be6222013-06-26 16:47:23 +0200172 port->port.drain_delay = 256;
173
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100174 return 0;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100175}
176
Johan Hovoldbf90ff52012-10-17 16:31:33 +0200177static int spcp8x5_port_remove(struct usb_serial_port *port)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100178{
Johan Hovoldbf90ff52012-10-17 16:31:33 +0200179 struct spcp8x5_private *priv;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100180
Johan Hovoldbf90ff52012-10-17 16:31:33 +0200181 priv = usb_get_serial_port_data(port);
182 kfree(priv);
183
184 return 0;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100185}
186
Johan Hovold8413d2f2013-03-21 12:37:27 +0100187static int spcp8x5_set_ctrl_line(struct usb_serial_port *port, u8 mcr)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100188{
Johan Hovold8413d2f2013-03-21 12:37:27 +0100189 struct spcp8x5_private *priv = usb_get_serial_port_data(port);
190 struct usb_device *dev = port->serial->dev;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100191 int retval;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100192
Johan Hovold4d631432013-03-21 12:37:29 +0100193 if (priv->quirks & SPCP825_QUIRK_NO_UART_STATUS)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100194 return -EPERM;
195
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100196 retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
197 SET_UART_STATUS_TYPE, SET_UART_STATUS,
198 mcr, 0x04, NULL, 0, 100);
Johan Hovold8413d2f2013-03-21 12:37:27 +0100199 if (retval != 0) {
200 dev_err(&port->dev, "failed to set control lines: %d\n",
201 retval);
202 }
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100203 return retval;
204}
205
Johan Hovold8413d2f2013-03-21 12:37:27 +0100206static int spcp8x5_get_msr(struct usb_serial_port *port, u8 *status)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100207{
Johan Hovold8413d2f2013-03-21 12:37:27 +0100208 struct spcp8x5_private *priv = usb_get_serial_port_data(port);
209 struct usb_device *dev = port->serial->dev;
Johan Hovold0a967f62013-03-21 12:37:28 +0100210 u8 *buf;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100211 int ret;
212
Johan Hovold4d631432013-03-21 12:37:29 +0100213 if (priv->quirks & SPCP825_QUIRK_NO_UART_STATUS)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100214 return -EPERM;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100215
Johan Hovold0a967f62013-03-21 12:37:28 +0100216 buf = kzalloc(1, GFP_KERNEL);
217 if (!buf)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100218 return -ENOMEM;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100219
220 ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
221 GET_UART_STATUS, GET_UART_STATUS_TYPE,
Johan Hovold0a967f62013-03-21 12:37:28 +0100222 0, GET_UART_STATUS_MSR, buf, 1, 100);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100223 if (ret < 0)
Johan Hovold8413d2f2013-03-21 12:37:27 +0100224 dev_err(&port->dev, "failed to get modem status: %d", ret);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100225
Johan Hovold0a967f62013-03-21 12:37:28 +0100226 dev_dbg(&port->dev, "0xc0:0x22:0:6 %d - 0x02%x", ret, *buf);
227 *status = *buf;
228 kfree(buf);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100229
230 return ret;
231}
232
Johan Hovold8413d2f2013-03-21 12:37:27 +0100233static void spcp8x5_set_work_mode(struct usb_serial_port *port, u16 value,
234 u16 index)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100235{
Johan Hovold8413d2f2013-03-21 12:37:27 +0100236 struct spcp8x5_private *priv = usb_get_serial_port_data(port);
237 struct usb_device *dev = port->serial->dev;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100238 int ret;
239
Johan Hovold4d631432013-03-21 12:37:29 +0100240 if (priv->quirks & SPCP825_QUIRK_NO_WORK_MODE)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100241 return;
242
243 ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
244 SET_WORKING_MODE_TYPE, SET_WORKING_MODE,
245 value, index, NULL, 0, 100);
Johan Hovold8413d2f2013-03-21 12:37:27 +0100246 dev_dbg(&port->dev, "value = %#x , index = %#x\n", value, index);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100247 if (ret < 0)
Johan Hovold8413d2f2013-03-21 12:37:27 +0100248 dev_err(&port->dev, "failed to set work mode: %d\n", ret);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100249}
250
Alan Cox335f8512009-06-11 12:26:29 +0100251static int spcp8x5_carrier_raised(struct usb_serial_port *port)
252{
Johan Hovolde1ed2122013-03-21 12:37:30 +0100253 u8 msr;
254 int ret;
Johan Hovold2d816ac2013-03-21 12:37:26 +0100255
Johan Hovolde1ed2122013-03-21 12:37:30 +0100256 ret = spcp8x5_get_msr(port, &msr);
257 if (ret || msr & MSR_STATUS_LINE_DCD)
Alan Cox335f8512009-06-11 12:26:29 +0100258 return 1;
Johan Hovold2d816ac2013-03-21 12:37:26 +0100259
Alan Cox335f8512009-06-11 12:26:29 +0100260 return 0;
261}
262
263static void spcp8x5_dtr_rts(struct usb_serial_port *port, int on)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100264{
265 struct spcp8x5_private *priv = usb_get_serial_port_data(port);
266 unsigned long flags;
Alan Cox335f8512009-06-11 12:26:29 +0100267 u8 control;
268
269 spin_lock_irqsave(&priv->lock, flags);
270 if (on)
271 priv->line_control = MCR_CONTROL_LINE_DTR
272 | MCR_CONTROL_LINE_RTS;
273 else
274 priv->line_control &= ~ (MCR_CONTROL_LINE_DTR
275 | MCR_CONTROL_LINE_RTS);
276 control = priv->line_control;
277 spin_unlock_irqrestore(&priv->lock, flags);
Johan Hovold8413d2f2013-03-21 12:37:27 +0100278 spcp8x5_set_ctrl_line(port, control);
Alan Cox335f8512009-06-11 12:26:29 +0100279}
280
Alan Coxfe1ae7f2009-09-19 13:13:33 -0700281static void spcp8x5_init_termios(struct tty_struct *tty)
282{
Alan Coxadc8d742012-07-14 15:31:47 +0100283 tty->termios = tty_std_termios;
284 tty->termios.c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL;
285 tty->termios.c_ispeed = 115200;
286 tty->termios.c_ospeed = 115200;
Alan Coxfe1ae7f2009-09-19 13:13:33 -0700287}
288
Alan Cox95da3102008-07-22 11:09:07 +0100289static void spcp8x5_set_termios(struct tty_struct *tty,
290 struct usb_serial_port *port, struct ktermios *old_termios)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100291{
292 struct usb_serial *serial = port->serial;
293 struct spcp8x5_private *priv = usb_get_serial_port_data(port);
294 unsigned long flags;
Alan Coxadc8d742012-07-14 15:31:47 +0100295 unsigned int cflag = tty->termios.c_cflag;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100296 unsigned short uartdata;
297 unsigned char buf[2] = {0, 0};
298 int baud;
299 int i;
300 u8 control;
301
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100302 /* check that they really want us to change something */
Johan Hovold5e4211f2013-06-10 18:29:39 +0200303 if (old_termios && !tty_termios_hw_change(&tty->termios, old_termios))
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100304 return;
305
306 /* set DTR/RTS active */
307 spin_lock_irqsave(&priv->lock, flags);
308 control = priv->line_control;
Johan Hovold5e4211f2013-06-10 18:29:39 +0200309 if (old_termios && (old_termios->c_cflag & CBAUD) == B0) {
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100310 priv->line_control |= MCR_DTR;
Johan Hovold5e4211f2013-06-10 18:29:39 +0200311 if (!(old_termios->c_cflag & CRTSCTS))
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100312 priv->line_control |= MCR_RTS;
313 }
314 if (control != priv->line_control) {
315 control = priv->line_control;
316 spin_unlock_irqrestore(&priv->lock, flags);
Johan Hovold8413d2f2013-03-21 12:37:27 +0100317 spcp8x5_set_ctrl_line(port, control);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100318 } else {
319 spin_unlock_irqrestore(&priv->lock, flags);
320 }
321
322 /* Set Baud Rate */
Joe Perchesa419aef2009-08-18 11:18:35 -0700323 baud = tty_get_baud_rate(tty);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100324 switch (baud) {
325 case 300: buf[0] = 0x00; break;
326 case 600: buf[0] = 0x01; break;
327 case 1200: buf[0] = 0x02; break;
328 case 2400: buf[0] = 0x03; break;
329 case 4800: buf[0] = 0x04; break;
330 case 9600: buf[0] = 0x05; break;
331 case 19200: buf[0] = 0x07; break;
332 case 38400: buf[0] = 0x09; break;
333 case 57600: buf[0] = 0x0a; break;
334 case 115200: buf[0] = 0x0b; break;
335 case 230400: buf[0] = 0x0c; break;
336 case 460800: buf[0] = 0x0d; break;
337 case 921600: buf[0] = 0x0e; break;
338/* case 1200000: buf[0] = 0x0f; break; */
339/* case 2400000: buf[0] = 0x10; break; */
340 case 3000000: buf[0] = 0x11; break;
341/* case 6000000: buf[0] = 0x12; break; */
342 case 0:
343 case 1000000:
344 buf[0] = 0x0b; break;
345 default:
Greg Kroah-Hartman194343d2008-08-20 16:56:34 -0700346 dev_err(&port->dev, "spcp825 driver does not support the "
347 "baudrate requested, using default of 9600.\n");
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100348 }
349
350 /* Set Data Length : 00:5bit, 01:6bit, 10:7bit, 11:8bit */
351 if (cflag & CSIZE) {
352 switch (cflag & CSIZE) {
353 case CS5:
354 buf[1] |= SET_UART_FORMAT_SIZE_5;
355 break;
356 case CS6:
357 buf[1] |= SET_UART_FORMAT_SIZE_6;
358 break;
359 case CS7:
360 buf[1] |= SET_UART_FORMAT_SIZE_7;
361 break;
362 default:
363 case CS8:
364 buf[1] |= SET_UART_FORMAT_SIZE_8;
365 break;
366 }
367 }
368
369 /* Set Stop bit2 : 0:1bit 1:2bit */
370 buf[1] |= (cflag & CSTOPB) ? SET_UART_FORMAT_STOP_2 :
371 SET_UART_FORMAT_STOP_1;
372
373 /* Set Parity bit3-4 01:Odd 11:Even */
374 if (cflag & PARENB) {
375 buf[1] |= (cflag & PARODD) ?
376 SET_UART_FORMAT_PAR_ODD : SET_UART_FORMAT_PAR_EVEN ;
Johan Hovold2d816ac2013-03-21 12:37:26 +0100377 } else {
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100378 buf[1] |= SET_UART_FORMAT_PAR_NONE;
Johan Hovold2d816ac2013-03-21 12:37:26 +0100379 }
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100380 uartdata = buf[0] | buf[1]<<8;
381
382 i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
383 SET_UART_FORMAT_TYPE, SET_UART_FORMAT,
384 uartdata, 0, NULL, 0, 100);
385 if (i < 0)
Greg Kroah-Hartman194343d2008-08-20 16:56:34 -0700386 dev_err(&port->dev, "Set UART format %#x failed (error = %d)\n",
387 uartdata, i);
Greg Kroah-Hartmanfe2baf82012-05-15 16:27:30 -0700388 dev_dbg(&port->dev, "0x21:0x40:0:0 %d\n", i);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100389
390 if (cflag & CRTSCTS) {
391 /* enable hardware flow control */
Johan Hovold8413d2f2013-03-21 12:37:27 +0100392 spcp8x5_set_work_mode(port, 0x000a, SET_WORKING_MODE_U2C);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100393 }
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100394}
395
Alan Coxa509a7e2009-09-19 13:13:26 -0700396static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100397{
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100398 struct usb_serial *serial = port->serial;
399 struct spcp8x5_private *priv = usb_get_serial_port_data(port);
400 int ret;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100401
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100402 usb_clear_halt(serial->dev, port->write_urb->pipe);
403 usb_clear_halt(serial->dev, port->read_urb->pipe);
404
405 ret = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
406 0x09, 0x00,
407 0x01, 0x00, NULL, 0x00, 100);
408 if (ret)
409 return ret;
410
Johan Hovold8413d2f2013-03-21 12:37:27 +0100411 spcp8x5_set_ctrl_line(port, priv->line_control);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100412
Alan Cox95da3102008-07-22 11:09:07 +0100413 if (tty)
Johan Hovold5e4211f2013-06-10 18:29:39 +0200414 spcp8x5_set_termios(tty, port, NULL);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100415
Johan Hovoldfa993ca2010-05-15 17:53:47 +0200416 return usb_serial_generic_open(tty, port);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100417}
418
Alan Cox20b9d172011-02-14 16:26:50 +0000419static int spcp8x5_tiocmset(struct tty_struct *tty,
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100420 unsigned int set, unsigned int clear)
421{
Alan Cox95da3102008-07-22 11:09:07 +0100422 struct usb_serial_port *port = tty->driver_data;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100423 struct spcp8x5_private *priv = usb_get_serial_port_data(port);
424 unsigned long flags;
425 u8 control;
426
427 spin_lock_irqsave(&priv->lock, flags);
428 if (set & TIOCM_RTS)
429 priv->line_control |= MCR_RTS;
430 if (set & TIOCM_DTR)
431 priv->line_control |= MCR_DTR;
432 if (clear & TIOCM_RTS)
433 priv->line_control &= ~MCR_RTS;
434 if (clear & TIOCM_DTR)
435 priv->line_control &= ~MCR_DTR;
436 control = priv->line_control;
437 spin_unlock_irqrestore(&priv->lock, flags);
438
Johan Hovold8413d2f2013-03-21 12:37:27 +0100439 return spcp8x5_set_ctrl_line(port, control);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100440}
441
Alan Cox60b33c12011-02-14 16:26:14 +0000442static int spcp8x5_tiocmget(struct tty_struct *tty)
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100443{
Alan Cox95da3102008-07-22 11:09:07 +0100444 struct usb_serial_port *port = tty->driver_data;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100445 struct spcp8x5_private *priv = usb_get_serial_port_data(port);
446 unsigned long flags;
447 unsigned int mcr;
Johan Hovolde1ed2122013-03-21 12:37:30 +0100448 u8 status;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100449 unsigned int result;
450
Johan Hovolde1ed2122013-03-21 12:37:30 +0100451 result = spcp8x5_get_msr(port, &status);
452 if (result)
453 return result;
454
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100455 spin_lock_irqsave(&priv->lock, flags);
456 mcr = priv->line_control;
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100457 spin_unlock_irqrestore(&priv->lock, flags);
458
459 result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0)
460 | ((mcr & MCR_RTS) ? TIOCM_RTS : 0)
461 | ((status & MSR_STATUS_LINE_CTS) ? TIOCM_CTS : 0)
462 | ((status & MSR_STATUS_LINE_DSR) ? TIOCM_DSR : 0)
463 | ((status & MSR_STATUS_LINE_RI) ? TIOCM_RI : 0)
464 | ((status & MSR_STATUS_LINE_DCD) ? TIOCM_CD : 0);
465
466 return result;
467}
468
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100469static struct usb_serial_driver spcp8x5_device = {
470 .driver = {
471 .owner = THIS_MODULE,
472 .name = "SPCP8x5",
473 },
474 .id_table = id_table,
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100475 .num_ports = 1,
Johan Hovold2d816ac2013-03-21 12:37:26 +0100476 .open = spcp8x5_open,
Alan Cox335f8512009-06-11 12:26:29 +0100477 .dtr_rts = spcp8x5_dtr_rts,
478 .carrier_raised = spcp8x5_carrier_raised,
Johan Hovold2d816ac2013-03-21 12:37:26 +0100479 .set_termios = spcp8x5_set_termios,
Alan Coxfe1ae7f2009-09-19 13:13:33 -0700480 .init_termios = spcp8x5_init_termios,
Johan Hovold2d816ac2013-03-21 12:37:26 +0100481 .tiocmget = spcp8x5_tiocmget,
482 .tiocmset = spcp8x5_tiocmset,
Johan Hovold4d631432013-03-21 12:37:29 +0100483 .probe = spcp8x5_probe,
Johan Hovoldbf90ff52012-10-17 16:31:33 +0200484 .port_probe = spcp8x5_port_probe,
485 .port_remove = spcp8x5_port_remove,
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100486};
487
Alan Sternd8603222012-02-23 14:57:25 -0500488static struct usb_serial_driver * const serial_drivers[] = {
489 &spcp8x5_device, NULL
490};
491
Greg Kroah-Hartman68e24112012-05-08 15:46:14 -0700492module_usb_serial_driver(serial_drivers, id_table);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100493
494MODULE_DESCRIPTION(DRIVER_DESC);
Greg Kroah-Hartman619a6f12008-02-07 23:59:03 +0100495MODULE_LICENSE("GPL");