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619a6f1d GKH |
1 | /* |
2 | * spcp8x5 USB to serial adaptor driver | |
3 | * | |
e1ed212d | 4 | * Copyright (C) 2010-2013 Johan Hovold (jhovold@gmail.com) |
619a6f1d GKH |
5 | * 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. | |
619a6f1d GKH |
16 | */ |
17 | #include <linux/kernel.h> | |
18 | #include <linux/errno.h> | |
619a6f1d GKH |
19 | #include <linux/slab.h> |
20 | #include <linux/tty.h> | |
21 | #include <linux/tty_driver.h> | |
22 | #include <linux/tty_flip.h> | |
23 | #include <linux/module.h> | |
24 | #include <linux/spinlock.h> | |
25 | #include <linux/usb.h> | |
26 | #include <linux/usb/serial.h> | |
27 | ||
2d816ac6 | 28 | #define DRIVER_DESC "SPCP8x5 USB to serial adaptor driver" |
619a6f1d | 29 | |
4d63143d JH |
30 | #define SPCP825_QUIRK_NO_UART_STATUS 0x01 |
31 | #define SPCP825_QUIRK_NO_WORK_MODE 0x02 | |
32 | ||
619a6f1d GKH |
33 | #define SPCP8x5_007_VID 0x04FC |
34 | #define SPCP8x5_007_PID 0x0201 | |
35 | #define SPCP8x5_008_VID 0x04fc | |
36 | #define SPCP8x5_008_PID 0x0235 | |
37 | #define SPCP8x5_PHILIPS_VID 0x0471 | |
38 | #define SPCP8x5_PHILIPS_PID 0x081e | |
39 | #define SPCP8x5_INTERMATIC_VID 0x04FC | |
40 | #define SPCP8x5_INTERMATIC_PID 0x0204 | |
41 | #define SPCP8x5_835_VID 0x04fc | |
42 | #define SPCP8x5_835_PID 0x0231 | |
43 | ||
7d40d7e8 | 44 | static const struct usb_device_id id_table[] = { |
619a6f1d GKH |
45 | { USB_DEVICE(SPCP8x5_PHILIPS_VID , SPCP8x5_PHILIPS_PID)}, |
46 | { USB_DEVICE(SPCP8x5_INTERMATIC_VID, SPCP8x5_INTERMATIC_PID)}, | |
47 | { USB_DEVICE(SPCP8x5_835_VID, SPCP8x5_835_PID)}, | |
48 | { USB_DEVICE(SPCP8x5_008_VID, SPCP8x5_008_PID)}, | |
4d63143d JH |
49 | { USB_DEVICE(SPCP8x5_007_VID, SPCP8x5_007_PID), |
50 | .driver_info = SPCP825_QUIRK_NO_UART_STATUS | | |
51 | SPCP825_QUIRK_NO_WORK_MODE }, | |
619a6f1d GKH |
52 | { } /* Terminating entry */ |
53 | }; | |
54 | MODULE_DEVICE_TABLE(usb, id_table); | |
55 | ||
56 | struct spcp8x5_usb_ctrl_arg { | |
2d816ac6 | 57 | u8 type; |
619a6f1d GKH |
58 | u8 cmd; |
59 | u8 cmd_type; | |
60 | u16 value; | |
61 | u16 index; | |
62 | u16 length; | |
63 | }; | |
64 | ||
619a6f1d GKH |
65 | |
66 | /* spcp8x5 spec register define */ | |
67 | #define MCR_CONTROL_LINE_RTS 0x02 | |
68 | #define MCR_CONTROL_LINE_DTR 0x01 | |
69 | #define MCR_DTR 0x01 | |
70 | #define MCR_RTS 0x02 | |
71 | ||
72 | #define MSR_STATUS_LINE_DCD 0x80 | |
73 | #define MSR_STATUS_LINE_RI 0x40 | |
74 | #define MSR_STATUS_LINE_DSR 0x20 | |
75 | #define MSR_STATUS_LINE_CTS 0x10 | |
76 | ||
77 | /* verdor command here , we should define myself */ | |
78 | #define SET_DEFAULT 0x40 | |
79 | #define SET_DEFAULT_TYPE 0x20 | |
80 | ||
81 | #define SET_UART_FORMAT 0x40 | |
82 | #define SET_UART_FORMAT_TYPE 0x21 | |
83 | #define SET_UART_FORMAT_SIZE_5 0x00 | |
84 | #define SET_UART_FORMAT_SIZE_6 0x01 | |
85 | #define SET_UART_FORMAT_SIZE_7 0x02 | |
86 | #define SET_UART_FORMAT_SIZE_8 0x03 | |
87 | #define SET_UART_FORMAT_STOP_1 0x00 | |
88 | #define SET_UART_FORMAT_STOP_2 0x04 | |
89 | #define SET_UART_FORMAT_PAR_NONE 0x00 | |
90 | #define SET_UART_FORMAT_PAR_ODD 0x10 | |
91 | #define SET_UART_FORMAT_PAR_EVEN 0x30 | |
92 | #define SET_UART_FORMAT_PAR_MASK 0xD0 | |
93 | #define SET_UART_FORMAT_PAR_SPACE 0x90 | |
94 | ||
95 | #define GET_UART_STATUS_TYPE 0xc0 | |
96 | #define GET_UART_STATUS 0x22 | |
97 | #define GET_UART_STATUS_MSR 0x06 | |
98 | ||
99 | #define SET_UART_STATUS 0x40 | |
100 | #define SET_UART_STATUS_TYPE 0x23 | |
101 | #define SET_UART_STATUS_MCR 0x0004 | |
102 | #define SET_UART_STATUS_MCR_DTR 0x01 | |
103 | #define SET_UART_STATUS_MCR_RTS 0x02 | |
104 | #define SET_UART_STATUS_MCR_LOOP 0x10 | |
105 | ||
106 | #define SET_WORKING_MODE 0x40 | |
107 | #define SET_WORKING_MODE_TYPE 0x24 | |
108 | #define SET_WORKING_MODE_U2C 0x00 | |
109 | #define SET_WORKING_MODE_RS485 0x01 | |
110 | #define SET_WORKING_MODE_PDMA 0x02 | |
111 | #define SET_WORKING_MODE_SPP 0x03 | |
112 | ||
113 | #define SET_FLOWCTL_CHAR 0x40 | |
114 | #define SET_FLOWCTL_CHAR_TYPE 0x25 | |
115 | ||
116 | #define GET_VERSION 0xc0 | |
117 | #define GET_VERSION_TYPE 0x26 | |
118 | ||
119 | #define SET_REGISTER 0x40 | |
120 | #define SET_REGISTER_TYPE 0x27 | |
121 | ||
122 | #define GET_REGISTER 0xc0 | |
123 | #define GET_REGISTER_TYPE 0x28 | |
124 | ||
125 | #define SET_RAM 0x40 | |
126 | #define SET_RAM_TYPE 0x31 | |
127 | ||
128 | #define GET_RAM 0xc0 | |
129 | #define GET_RAM_TYPE 0x32 | |
130 | ||
131 | /* how come ??? */ | |
132 | #define UART_STATE 0x08 | |
d14fc1a7 | 133 | #define UART_STATE_TRANSIENT_MASK 0x75 |
619a6f1d GKH |
134 | #define UART_DCD 0x01 |
135 | #define UART_DSR 0x02 | |
136 | #define UART_BREAK_ERROR 0x04 | |
137 | #define UART_RING 0x08 | |
138 | #define UART_FRAME_ERROR 0x10 | |
139 | #define UART_PARITY_ERROR 0x20 | |
140 | #define UART_OVERRUN_ERROR 0x40 | |
141 | #define UART_CTS 0x80 | |
142 | ||
619a6f1d | 143 | struct spcp8x5_private { |
4d63143d | 144 | unsigned quirks; |
2d816ac6 | 145 | spinlock_t lock; |
2d816ac6 | 146 | u8 line_control; |
619a6f1d GKH |
147 | }; |
148 | ||
4d63143d JH |
149 | static int spcp8x5_probe(struct usb_serial *serial, |
150 | const struct usb_device_id *id) | |
151 | { | |
152 | usb_set_serial_data(serial, (void *)id); | |
153 | ||
154 | return 0; | |
155 | } | |
156 | ||
cc090924 JH |
157 | static int spcp8x5_attach(struct usb_serial *serial) |
158 | { | |
159 | unsigned char num_ports = serial->num_ports; | |
160 | ||
161 | if (serial->num_bulk_in < num_ports || | |
162 | serial->num_bulk_out < num_ports) { | |
163 | dev_err(&serial->interface->dev, "missing endpoints\n"); | |
164 | return -ENODEV; | |
165 | } | |
166 | ||
167 | return 0; | |
168 | } | |
169 | ||
bf90ff5f | 170 | static int spcp8x5_port_probe(struct usb_serial_port *port) |
619a6f1d | 171 | { |
4d63143d | 172 | const struct usb_device_id *id = usb_get_serial_data(port->serial); |
619a6f1d | 173 | struct spcp8x5_private *priv; |
619a6f1d | 174 | |
bf90ff5f JH |
175 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
176 | if (!priv) | |
177 | return -ENOMEM; | |
619a6f1d | 178 | |
bf90ff5f | 179 | spin_lock_init(&priv->lock); |
4d63143d | 180 | priv->quirks = id->driver_info; |
bf90ff5f | 181 | |
2d816ac6 | 182 | usb_set_serial_port_data(port, priv); |
619a6f1d | 183 | |
d7be6221 JH |
184 | port->port.drain_delay = 256; |
185 | ||
619a6f1d | 186 | return 0; |
619a6f1d GKH |
187 | } |
188 | ||
bf90ff5f | 189 | static int spcp8x5_port_remove(struct usb_serial_port *port) |
619a6f1d | 190 | { |
bf90ff5f | 191 | struct spcp8x5_private *priv; |
619a6f1d | 192 | |
bf90ff5f JH |
193 | priv = usb_get_serial_port_data(port); |
194 | kfree(priv); | |
195 | ||
196 | return 0; | |
619a6f1d GKH |
197 | } |
198 | ||
8413d2fd | 199 | static int spcp8x5_set_ctrl_line(struct usb_serial_port *port, u8 mcr) |
619a6f1d | 200 | { |
8413d2fd JH |
201 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); |
202 | struct usb_device *dev = port->serial->dev; | |
619a6f1d | 203 | int retval; |
619a6f1d | 204 | |
4d63143d | 205 | if (priv->quirks & SPCP825_QUIRK_NO_UART_STATUS) |
619a6f1d GKH |
206 | return -EPERM; |
207 | ||
619a6f1d GKH |
208 | retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
209 | SET_UART_STATUS_TYPE, SET_UART_STATUS, | |
210 | mcr, 0x04, NULL, 0, 100); | |
8413d2fd JH |
211 | if (retval != 0) { |
212 | dev_err(&port->dev, "failed to set control lines: %d\n", | |
213 | retval); | |
214 | } | |
619a6f1d GKH |
215 | return retval; |
216 | } | |
217 | ||
8413d2fd | 218 | static int spcp8x5_get_msr(struct usb_serial_port *port, u8 *status) |
619a6f1d | 219 | { |
8413d2fd JH |
220 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); |
221 | struct usb_device *dev = port->serial->dev; | |
0a967f62 | 222 | u8 *buf; |
619a6f1d GKH |
223 | int ret; |
224 | ||
4d63143d | 225 | if (priv->quirks & SPCP825_QUIRK_NO_UART_STATUS) |
619a6f1d | 226 | return -EPERM; |
619a6f1d | 227 | |
0a967f62 JH |
228 | buf = kzalloc(1, GFP_KERNEL); |
229 | if (!buf) | |
619a6f1d | 230 | return -ENOMEM; |
619a6f1d GKH |
231 | |
232 | ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
233 | GET_UART_STATUS, GET_UART_STATUS_TYPE, | |
0a967f62 | 234 | 0, GET_UART_STATUS_MSR, buf, 1, 100); |
619a6f1d | 235 | if (ret < 0) |
d9a38a87 | 236 | dev_err(&port->dev, "failed to get modem status: %d\n", ret); |
8413d2fd | 237 | |
d9a38a87 | 238 | dev_dbg(&port->dev, "0xc0:0x22:0:6 %d - 0x02%x\n", ret, *buf); |
0a967f62 JH |
239 | *status = *buf; |
240 | kfree(buf); | |
619a6f1d GKH |
241 | |
242 | return ret; | |
243 | } | |
244 | ||
8413d2fd JH |
245 | static void spcp8x5_set_work_mode(struct usb_serial_port *port, u16 value, |
246 | u16 index) | |
619a6f1d | 247 | { |
8413d2fd JH |
248 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); |
249 | struct usb_device *dev = port->serial->dev; | |
619a6f1d GKH |
250 | int ret; |
251 | ||
4d63143d | 252 | if (priv->quirks & SPCP825_QUIRK_NO_WORK_MODE) |
619a6f1d GKH |
253 | return; |
254 | ||
255 | ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
256 | SET_WORKING_MODE_TYPE, SET_WORKING_MODE, | |
257 | value, index, NULL, 0, 100); | |
8413d2fd | 258 | dev_dbg(&port->dev, "value = %#x , index = %#x\n", value, index); |
619a6f1d | 259 | if (ret < 0) |
8413d2fd | 260 | dev_err(&port->dev, "failed to set work mode: %d\n", ret); |
619a6f1d GKH |
261 | } |
262 | ||
335f8514 AC |
263 | static int spcp8x5_carrier_raised(struct usb_serial_port *port) |
264 | { | |
e1ed212d JH |
265 | u8 msr; |
266 | int ret; | |
2d816ac6 | 267 | |
e1ed212d JH |
268 | ret = spcp8x5_get_msr(port, &msr); |
269 | if (ret || msr & MSR_STATUS_LINE_DCD) | |
335f8514 | 270 | return 1; |
2d816ac6 | 271 | |
335f8514 AC |
272 | return 0; |
273 | } | |
274 | ||
275 | static void spcp8x5_dtr_rts(struct usb_serial_port *port, int on) | |
276 | { | |
277 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); | |
278 | unsigned long flags; | |
279 | u8 control; | |
280 | ||
281 | spin_lock_irqsave(&priv->lock, flags); | |
282 | if (on) | |
283 | priv->line_control = MCR_CONTROL_LINE_DTR | |
284 | | MCR_CONTROL_LINE_RTS; | |
285 | else | |
286 | priv->line_control &= ~ (MCR_CONTROL_LINE_DTR | |
287 | | MCR_CONTROL_LINE_RTS); | |
288 | control = priv->line_control; | |
289 | spin_unlock_irqrestore(&priv->lock, flags); | |
8413d2fd | 290 | spcp8x5_set_ctrl_line(port, control); |
335f8514 AC |
291 | } |
292 | ||
fe1ae7fd AC |
293 | static void spcp8x5_init_termios(struct tty_struct *tty) |
294 | { | |
adc8d746 AC |
295 | tty->termios = tty_std_termios; |
296 | tty->termios.c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL; | |
297 | tty->termios.c_ispeed = 115200; | |
298 | tty->termios.c_ospeed = 115200; | |
fe1ae7fd AC |
299 | } |
300 | ||
95da310e AC |
301 | static void spcp8x5_set_termios(struct tty_struct *tty, |
302 | struct usb_serial_port *port, struct ktermios *old_termios) | |
619a6f1d GKH |
303 | { |
304 | struct usb_serial *serial = port->serial; | |
305 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); | |
306 | unsigned long flags; | |
adc8d746 | 307 | unsigned int cflag = tty->termios.c_cflag; |
619a6f1d GKH |
308 | unsigned short uartdata; |
309 | unsigned char buf[2] = {0, 0}; | |
310 | int baud; | |
311 | int i; | |
312 | u8 control; | |
313 | ||
619a6f1d | 314 | /* check that they really want us to change something */ |
5e4211f1 | 315 | if (old_termios && !tty_termios_hw_change(&tty->termios, old_termios)) |
619a6f1d GKH |
316 | return; |
317 | ||
318 | /* set DTR/RTS active */ | |
319 | spin_lock_irqsave(&priv->lock, flags); | |
320 | control = priv->line_control; | |
5e4211f1 | 321 | if (old_termios && (old_termios->c_cflag & CBAUD) == B0) { |
619a6f1d | 322 | priv->line_control |= MCR_DTR; |
5e4211f1 | 323 | if (!(old_termios->c_cflag & CRTSCTS)) |
619a6f1d GKH |
324 | priv->line_control |= MCR_RTS; |
325 | } | |
326 | if (control != priv->line_control) { | |
327 | control = priv->line_control; | |
328 | spin_unlock_irqrestore(&priv->lock, flags); | |
8413d2fd | 329 | spcp8x5_set_ctrl_line(port, control); |
619a6f1d GKH |
330 | } else { |
331 | spin_unlock_irqrestore(&priv->lock, flags); | |
332 | } | |
333 | ||
334 | /* Set Baud Rate */ | |
a419aef8 | 335 | baud = tty_get_baud_rate(tty); |
619a6f1d GKH |
336 | switch (baud) { |
337 | case 300: buf[0] = 0x00; break; | |
338 | case 600: buf[0] = 0x01; break; | |
339 | case 1200: buf[0] = 0x02; break; | |
340 | case 2400: buf[0] = 0x03; break; | |
341 | case 4800: buf[0] = 0x04; break; | |
342 | case 9600: buf[0] = 0x05; break; | |
343 | case 19200: buf[0] = 0x07; break; | |
344 | case 38400: buf[0] = 0x09; break; | |
345 | case 57600: buf[0] = 0x0a; break; | |
346 | case 115200: buf[0] = 0x0b; break; | |
347 | case 230400: buf[0] = 0x0c; break; | |
348 | case 460800: buf[0] = 0x0d; break; | |
349 | case 921600: buf[0] = 0x0e; break; | |
350 | /* case 1200000: buf[0] = 0x0f; break; */ | |
351 | /* case 2400000: buf[0] = 0x10; break; */ | |
352 | case 3000000: buf[0] = 0x11; break; | |
353 | /* case 6000000: buf[0] = 0x12; break; */ | |
354 | case 0: | |
355 | case 1000000: | |
356 | buf[0] = 0x0b; break; | |
357 | default: | |
d9a38a87 | 358 | dev_err(&port->dev, "unsupported baudrate, using 9600\n"); |
619a6f1d GKH |
359 | } |
360 | ||
361 | /* Set Data Length : 00:5bit, 01:6bit, 10:7bit, 11:8bit */ | |
711fbdfb CL |
362 | switch (cflag & CSIZE) { |
363 | case CS5: | |
364 | buf[1] |= SET_UART_FORMAT_SIZE_5; | |
365 | break; | |
366 | case CS6: | |
367 | buf[1] |= SET_UART_FORMAT_SIZE_6; | |
368 | break; | |
369 | case CS7: | |
370 | buf[1] |= SET_UART_FORMAT_SIZE_7; | |
371 | break; | |
372 | default: | |
373 | case CS8: | |
374 | buf[1] |= SET_UART_FORMAT_SIZE_8; | |
375 | break; | |
619a6f1d GKH |
376 | } |
377 | ||
378 | /* Set Stop bit2 : 0:1bit 1:2bit */ | |
379 | buf[1] |= (cflag & CSTOPB) ? SET_UART_FORMAT_STOP_2 : | |
380 | SET_UART_FORMAT_STOP_1; | |
381 | ||
382 | /* Set Parity bit3-4 01:Odd 11:Even */ | |
383 | if (cflag & PARENB) { | |
384 | buf[1] |= (cflag & PARODD) ? | |
385 | SET_UART_FORMAT_PAR_ODD : SET_UART_FORMAT_PAR_EVEN ; | |
2d816ac6 | 386 | } else { |
619a6f1d | 387 | buf[1] |= SET_UART_FORMAT_PAR_NONE; |
2d816ac6 | 388 | } |
619a6f1d GKH |
389 | uartdata = buf[0] | buf[1]<<8; |
390 | ||
391 | i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), | |
392 | SET_UART_FORMAT_TYPE, SET_UART_FORMAT, | |
393 | uartdata, 0, NULL, 0, 100); | |
394 | if (i < 0) | |
194343d9 GKH |
395 | dev_err(&port->dev, "Set UART format %#x failed (error = %d)\n", |
396 | uartdata, i); | |
fe2baf87 | 397 | dev_dbg(&port->dev, "0x21:0x40:0:0 %d\n", i); |
619a6f1d GKH |
398 | |
399 | if (cflag & CRTSCTS) { | |
400 | /* enable hardware flow control */ | |
8413d2fd | 401 | spcp8x5_set_work_mode(port, 0x000a, SET_WORKING_MODE_U2C); |
619a6f1d | 402 | } |
619a6f1d GKH |
403 | } |
404 | ||
a509a7e4 | 405 | static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port) |
619a6f1d | 406 | { |
619a6f1d GKH |
407 | struct usb_serial *serial = port->serial; |
408 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); | |
409 | int ret; | |
619a6f1d | 410 | |
619a6f1d GKH |
411 | usb_clear_halt(serial->dev, port->write_urb->pipe); |
412 | usb_clear_halt(serial->dev, port->read_urb->pipe); | |
413 | ||
414 | ret = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), | |
415 | 0x09, 0x00, | |
416 | 0x01, 0x00, NULL, 0x00, 100); | |
417 | if (ret) | |
418 | return ret; | |
419 | ||
8413d2fd | 420 | spcp8x5_set_ctrl_line(port, priv->line_control); |
619a6f1d | 421 | |
95da310e | 422 | if (tty) |
5e4211f1 | 423 | spcp8x5_set_termios(tty, port, NULL); |
619a6f1d | 424 | |
fa993ca8 | 425 | return usb_serial_generic_open(tty, port); |
619a6f1d GKH |
426 | } |
427 | ||
20b9d177 | 428 | static int spcp8x5_tiocmset(struct tty_struct *tty, |
619a6f1d GKH |
429 | unsigned int set, unsigned int clear) |
430 | { | |
95da310e | 431 | struct usb_serial_port *port = tty->driver_data; |
619a6f1d GKH |
432 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); |
433 | unsigned long flags; | |
434 | u8 control; | |
435 | ||
436 | spin_lock_irqsave(&priv->lock, flags); | |
437 | if (set & TIOCM_RTS) | |
438 | priv->line_control |= MCR_RTS; | |
439 | if (set & TIOCM_DTR) | |
440 | priv->line_control |= MCR_DTR; | |
441 | if (clear & TIOCM_RTS) | |
442 | priv->line_control &= ~MCR_RTS; | |
443 | if (clear & TIOCM_DTR) | |
444 | priv->line_control &= ~MCR_DTR; | |
445 | control = priv->line_control; | |
446 | spin_unlock_irqrestore(&priv->lock, flags); | |
447 | ||
8413d2fd | 448 | return spcp8x5_set_ctrl_line(port, control); |
619a6f1d GKH |
449 | } |
450 | ||
60b33c13 | 451 | static int spcp8x5_tiocmget(struct tty_struct *tty) |
619a6f1d | 452 | { |
95da310e | 453 | struct usb_serial_port *port = tty->driver_data; |
619a6f1d GKH |
454 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); |
455 | unsigned long flags; | |
456 | unsigned int mcr; | |
e1ed212d | 457 | u8 status; |
619a6f1d GKH |
458 | unsigned int result; |
459 | ||
e1ed212d JH |
460 | result = spcp8x5_get_msr(port, &status); |
461 | if (result) | |
462 | return result; | |
463 | ||
619a6f1d GKH |
464 | spin_lock_irqsave(&priv->lock, flags); |
465 | mcr = priv->line_control; | |
619a6f1d GKH |
466 | spin_unlock_irqrestore(&priv->lock, flags); |
467 | ||
468 | result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0) | |
469 | | ((mcr & MCR_RTS) ? TIOCM_RTS : 0) | |
470 | | ((status & MSR_STATUS_LINE_CTS) ? TIOCM_CTS : 0) | |
471 | | ((status & MSR_STATUS_LINE_DSR) ? TIOCM_DSR : 0) | |
472 | | ((status & MSR_STATUS_LINE_RI) ? TIOCM_RI : 0) | |
473 | | ((status & MSR_STATUS_LINE_DCD) ? TIOCM_CD : 0); | |
474 | ||
475 | return result; | |
476 | } | |
477 | ||
619a6f1d GKH |
478 | static struct usb_serial_driver spcp8x5_device = { |
479 | .driver = { | |
480 | .owner = THIS_MODULE, | |
481 | .name = "SPCP8x5", | |
482 | }, | |
483 | .id_table = id_table, | |
619a6f1d | 484 | .num_ports = 1, |
2d816ac6 | 485 | .open = spcp8x5_open, |
335f8514 AC |
486 | .dtr_rts = spcp8x5_dtr_rts, |
487 | .carrier_raised = spcp8x5_carrier_raised, | |
2d816ac6 | 488 | .set_termios = spcp8x5_set_termios, |
fe1ae7fd | 489 | .init_termios = spcp8x5_init_termios, |
2d816ac6 JH |
490 | .tiocmget = spcp8x5_tiocmget, |
491 | .tiocmset = spcp8x5_tiocmset, | |
4d63143d | 492 | .probe = spcp8x5_probe, |
cc090924 | 493 | .attach = spcp8x5_attach, |
bf90ff5f JH |
494 | .port_probe = spcp8x5_port_probe, |
495 | .port_remove = spcp8x5_port_remove, | |
619a6f1d GKH |
496 | }; |
497 | ||
d860322f AS |
498 | static struct usb_serial_driver * const serial_drivers[] = { |
499 | &spcp8x5_device, NULL | |
500 | }; | |
501 | ||
68e24113 | 502 | module_usb_serial_driver(serial_drivers, id_table); |
619a6f1d GKH |
503 | |
504 | MODULE_DESCRIPTION(DRIVER_DESC); | |
619a6f1d | 505 | MODULE_LICENSE("GPL"); |