]>
Commit | Line | Data |
---|---|---|
619a6f1d GKH |
1 | /* |
2 | * spcp8x5 USB to serial adaptor driver | |
3 | * | |
fa993ca8 | 4 | * Copyright (C) 2010 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. | |
16 | * | |
17 | * | |
18 | */ | |
19 | #include <linux/kernel.h> | |
20 | #include <linux/errno.h> | |
21 | #include <linux/init.h> | |
22 | #include <linux/slab.h> | |
23 | #include <linux/tty.h> | |
24 | #include <linux/tty_driver.h> | |
25 | #include <linux/tty_flip.h> | |
26 | #include <linux/module.h> | |
27 | #include <linux/spinlock.h> | |
28 | #include <linux/usb.h> | |
29 | #include <linux/usb/serial.h> | |
30 | ||
31 | ||
32 | /* Version Information */ | |
fa993ca8 | 33 | #define DRIVER_VERSION "v0.10" |
619a6f1d GKH |
34 | #define DRIVER_DESC "SPCP8x5 USB to serial adaptor driver" |
35 | ||
90ab5ee9 | 36 | static bool debug; |
619a6f1d GKH |
37 | |
38 | #define SPCP8x5_007_VID 0x04FC | |
39 | #define SPCP8x5_007_PID 0x0201 | |
40 | #define SPCP8x5_008_VID 0x04fc | |
41 | #define SPCP8x5_008_PID 0x0235 | |
42 | #define SPCP8x5_PHILIPS_VID 0x0471 | |
43 | #define SPCP8x5_PHILIPS_PID 0x081e | |
44 | #define SPCP8x5_INTERMATIC_VID 0x04FC | |
45 | #define SPCP8x5_INTERMATIC_PID 0x0204 | |
46 | #define SPCP8x5_835_VID 0x04fc | |
47 | #define SPCP8x5_835_PID 0x0231 | |
48 | ||
7d40d7e8 | 49 | static const struct usb_device_id id_table[] = { |
619a6f1d GKH |
50 | { USB_DEVICE(SPCP8x5_PHILIPS_VID , SPCP8x5_PHILIPS_PID)}, |
51 | { USB_DEVICE(SPCP8x5_INTERMATIC_VID, SPCP8x5_INTERMATIC_PID)}, | |
52 | { USB_DEVICE(SPCP8x5_835_VID, SPCP8x5_835_PID)}, | |
53 | { USB_DEVICE(SPCP8x5_008_VID, SPCP8x5_008_PID)}, | |
54 | { USB_DEVICE(SPCP8x5_007_VID, SPCP8x5_007_PID)}, | |
55 | { } /* Terminating entry */ | |
56 | }; | |
57 | MODULE_DEVICE_TABLE(usb, id_table); | |
58 | ||
59 | struct spcp8x5_usb_ctrl_arg { | |
60 | u8 type; | |
61 | u8 cmd; | |
62 | u8 cmd_type; | |
63 | u16 value; | |
64 | u16 index; | |
65 | u16 length; | |
66 | }; | |
67 | ||
619a6f1d GKH |
68 | |
69 | /* spcp8x5 spec register define */ | |
70 | #define MCR_CONTROL_LINE_RTS 0x02 | |
71 | #define MCR_CONTROL_LINE_DTR 0x01 | |
72 | #define MCR_DTR 0x01 | |
73 | #define MCR_RTS 0x02 | |
74 | ||
75 | #define MSR_STATUS_LINE_DCD 0x80 | |
76 | #define MSR_STATUS_LINE_RI 0x40 | |
77 | #define MSR_STATUS_LINE_DSR 0x20 | |
78 | #define MSR_STATUS_LINE_CTS 0x10 | |
79 | ||
80 | /* verdor command here , we should define myself */ | |
81 | #define SET_DEFAULT 0x40 | |
82 | #define SET_DEFAULT_TYPE 0x20 | |
83 | ||
84 | #define SET_UART_FORMAT 0x40 | |
85 | #define SET_UART_FORMAT_TYPE 0x21 | |
86 | #define SET_UART_FORMAT_SIZE_5 0x00 | |
87 | #define SET_UART_FORMAT_SIZE_6 0x01 | |
88 | #define SET_UART_FORMAT_SIZE_7 0x02 | |
89 | #define SET_UART_FORMAT_SIZE_8 0x03 | |
90 | #define SET_UART_FORMAT_STOP_1 0x00 | |
91 | #define SET_UART_FORMAT_STOP_2 0x04 | |
92 | #define SET_UART_FORMAT_PAR_NONE 0x00 | |
93 | #define SET_UART_FORMAT_PAR_ODD 0x10 | |
94 | #define SET_UART_FORMAT_PAR_EVEN 0x30 | |
95 | #define SET_UART_FORMAT_PAR_MASK 0xD0 | |
96 | #define SET_UART_FORMAT_PAR_SPACE 0x90 | |
97 | ||
98 | #define GET_UART_STATUS_TYPE 0xc0 | |
99 | #define GET_UART_STATUS 0x22 | |
100 | #define GET_UART_STATUS_MSR 0x06 | |
101 | ||
102 | #define SET_UART_STATUS 0x40 | |
103 | #define SET_UART_STATUS_TYPE 0x23 | |
104 | #define SET_UART_STATUS_MCR 0x0004 | |
105 | #define SET_UART_STATUS_MCR_DTR 0x01 | |
106 | #define SET_UART_STATUS_MCR_RTS 0x02 | |
107 | #define SET_UART_STATUS_MCR_LOOP 0x10 | |
108 | ||
109 | #define SET_WORKING_MODE 0x40 | |
110 | #define SET_WORKING_MODE_TYPE 0x24 | |
111 | #define SET_WORKING_MODE_U2C 0x00 | |
112 | #define SET_WORKING_MODE_RS485 0x01 | |
113 | #define SET_WORKING_MODE_PDMA 0x02 | |
114 | #define SET_WORKING_MODE_SPP 0x03 | |
115 | ||
116 | #define SET_FLOWCTL_CHAR 0x40 | |
117 | #define SET_FLOWCTL_CHAR_TYPE 0x25 | |
118 | ||
119 | #define GET_VERSION 0xc0 | |
120 | #define GET_VERSION_TYPE 0x26 | |
121 | ||
122 | #define SET_REGISTER 0x40 | |
123 | #define SET_REGISTER_TYPE 0x27 | |
124 | ||
125 | #define GET_REGISTER 0xc0 | |
126 | #define GET_REGISTER_TYPE 0x28 | |
127 | ||
128 | #define SET_RAM 0x40 | |
129 | #define SET_RAM_TYPE 0x31 | |
130 | ||
131 | #define GET_RAM 0xc0 | |
132 | #define GET_RAM_TYPE 0x32 | |
133 | ||
134 | /* how come ??? */ | |
135 | #define UART_STATE 0x08 | |
d14fc1a7 | 136 | #define UART_STATE_TRANSIENT_MASK 0x75 |
619a6f1d GKH |
137 | #define UART_DCD 0x01 |
138 | #define UART_DSR 0x02 | |
139 | #define UART_BREAK_ERROR 0x04 | |
140 | #define UART_RING 0x08 | |
141 | #define UART_FRAME_ERROR 0x10 | |
142 | #define UART_PARITY_ERROR 0x20 | |
143 | #define UART_OVERRUN_ERROR 0x40 | |
144 | #define UART_CTS 0x80 | |
145 | ||
146 | enum spcp8x5_type { | |
147 | SPCP825_007_TYPE, | |
148 | SPCP825_008_TYPE, | |
149 | SPCP825_PHILIP_TYPE, | |
150 | SPCP825_INTERMATIC_TYPE, | |
151 | SPCP835_TYPE, | |
152 | }; | |
153 | ||
619a6f1d GKH |
154 | struct spcp8x5_private { |
155 | spinlock_t lock; | |
619a6f1d GKH |
156 | enum spcp8x5_type type; |
157 | wait_queue_head_t delta_msr_wait; | |
158 | u8 line_control; | |
159 | u8 line_status; | |
619a6f1d GKH |
160 | }; |
161 | ||
162 | /* desc : when device plug in,this function would be called. | |
163 | * thanks to usb_serial subsystem,then do almost every things for us. And what | |
164 | * we should do just alloc the buffer */ | |
165 | static int spcp8x5_startup(struct usb_serial *serial) | |
166 | { | |
167 | struct spcp8x5_private *priv; | |
168 | int i; | |
169 | enum spcp8x5_type type = SPCP825_007_TYPE; | |
fd05e720 | 170 | u16 product = le16_to_cpu(serial->dev->descriptor.idProduct); |
619a6f1d | 171 | |
fd05e720 | 172 | if (product == 0x0201) |
619a6f1d | 173 | type = SPCP825_007_TYPE; |
fd05e720 | 174 | else if (product == 0x0231) |
619a6f1d | 175 | type = SPCP835_TYPE; |
fd05e720 | 176 | else if (product == 0x0235) |
619a6f1d | 177 | type = SPCP825_008_TYPE; |
fd05e720 | 178 | else if (product == 0x0204) |
619a6f1d | 179 | type = SPCP825_INTERMATIC_TYPE; |
fd05e720 AV |
180 | else if (product == 0x0471 && |
181 | serial->dev->descriptor.idVendor == cpu_to_le16(0x081e)) | |
619a6f1d GKH |
182 | type = SPCP825_PHILIP_TYPE; |
183 | dev_dbg(&serial->dev->dev, "device type = %d\n", (int)type); | |
184 | ||
185 | for (i = 0; i < serial->num_ports; ++i) { | |
186 | priv = kzalloc(sizeof(struct spcp8x5_private), GFP_KERNEL); | |
187 | if (!priv) | |
188 | goto cleanup; | |
189 | ||
190 | spin_lock_init(&priv->lock); | |
619a6f1d GKH |
191 | init_waitqueue_head(&priv->delta_msr_wait); |
192 | priv->type = type; | |
193 | usb_set_serial_port_data(serial->port[i] , priv); | |
619a6f1d GKH |
194 | } |
195 | ||
196 | return 0; | |
619a6f1d GKH |
197 | cleanup: |
198 | for (--i; i >= 0; --i) { | |
199 | priv = usb_get_serial_port_data(serial->port[i]); | |
619a6f1d GKH |
200 | kfree(priv); |
201 | usb_set_serial_port_data(serial->port[i] , NULL); | |
202 | } | |
203 | return -ENOMEM; | |
204 | } | |
205 | ||
206 | /* call when the device plug out. free all the memory alloced by probe */ | |
f9c99bb8 | 207 | static void spcp8x5_release(struct usb_serial *serial) |
619a6f1d GKH |
208 | { |
209 | int i; | |
619a6f1d | 210 | |
fa993ca8 JH |
211 | for (i = 0; i < serial->num_ports; i++) |
212 | kfree(usb_get_serial_port_data(serial->port[i])); | |
619a6f1d GKH |
213 | } |
214 | ||
215 | /* set the modem control line of the device. | |
216 | * NOTE spcp825-007 not supported this */ | |
217 | static int spcp8x5_set_ctrlLine(struct usb_device *dev, u8 value, | |
218 | enum spcp8x5_type type) | |
219 | { | |
220 | int retval; | |
221 | u8 mcr = 0 ; | |
222 | ||
223 | if (type == SPCP825_007_TYPE) | |
224 | return -EPERM; | |
225 | ||
226 | mcr = (unsigned short)value; | |
227 | retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
228 | SET_UART_STATUS_TYPE, SET_UART_STATUS, | |
229 | mcr, 0x04, NULL, 0, 100); | |
230 | if (retval != 0) | |
231 | dev_dbg(&dev->dev, "usb_control_msg return %#x\n", retval); | |
232 | return retval; | |
233 | } | |
234 | ||
235 | /* get the modem status register of the device | |
236 | * NOTE spcp825-007 not supported this */ | |
237 | static int spcp8x5_get_msr(struct usb_device *dev, u8 *status, | |
238 | enum spcp8x5_type type) | |
239 | { | |
240 | u8 *status_buffer; | |
241 | int ret; | |
242 | ||
243 | /* I return Permited not support here but seem inval device | |
244 | * is more fix */ | |
245 | if (type == SPCP825_007_TYPE) | |
246 | return -EPERM; | |
247 | if (status == NULL) | |
248 | return -EINVAL; | |
249 | ||
250 | status_buffer = kmalloc(1, GFP_KERNEL); | |
251 | if (!status_buffer) | |
252 | return -ENOMEM; | |
253 | status_buffer[0] = status[0]; | |
254 | ||
255 | ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
256 | GET_UART_STATUS, GET_UART_STATUS_TYPE, | |
257 | 0, GET_UART_STATUS_MSR, status_buffer, 1, 100); | |
258 | if (ret < 0) | |
259 | dev_dbg(&dev->dev, "Get MSR = 0x%p failed (error = %d)", | |
260 | status_buffer, ret); | |
261 | ||
262 | dev_dbg(&dev->dev, "0xc0:0x22:0:6 %d - 0x%p ", ret, status_buffer); | |
263 | status[0] = status_buffer[0]; | |
264 | kfree(status_buffer); | |
265 | ||
266 | return ret; | |
267 | } | |
268 | ||
269 | /* select the work mode. | |
270 | * NOTE this function not supported by spcp825-007 */ | |
271 | static void spcp8x5_set_workMode(struct usb_device *dev, u16 value, | |
272 | u16 index, enum spcp8x5_type type) | |
273 | { | |
274 | int ret; | |
275 | ||
276 | /* I return Permited not support here but seem inval device | |
277 | * is more fix */ | |
278 | if (type == SPCP825_007_TYPE) | |
279 | return; | |
280 | ||
281 | ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
282 | SET_WORKING_MODE_TYPE, SET_WORKING_MODE, | |
283 | value, index, NULL, 0, 100); | |
284 | dev_dbg(&dev->dev, "value = %#x , index = %#x\n", value, index); | |
285 | if (ret < 0) | |
286 | dev_dbg(&dev->dev, | |
287 | "RTSCTS usb_control_msg(enable flowctrl) = %d\n", ret); | |
288 | } | |
289 | ||
335f8514 AC |
290 | static int spcp8x5_carrier_raised(struct usb_serial_port *port) |
291 | { | |
292 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); | |
293 | if (priv->line_status & MSR_STATUS_LINE_DCD) | |
294 | return 1; | |
295 | return 0; | |
296 | } | |
297 | ||
298 | static void spcp8x5_dtr_rts(struct usb_serial_port *port, int on) | |
299 | { | |
300 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); | |
301 | unsigned long flags; | |
302 | u8 control; | |
303 | ||
304 | spin_lock_irqsave(&priv->lock, flags); | |
305 | if (on) | |
306 | priv->line_control = MCR_CONTROL_LINE_DTR | |
307 | | MCR_CONTROL_LINE_RTS; | |
308 | else | |
309 | priv->line_control &= ~ (MCR_CONTROL_LINE_DTR | |
310 | | MCR_CONTROL_LINE_RTS); | |
311 | control = priv->line_control; | |
312 | spin_unlock_irqrestore(&priv->lock, flags); | |
313 | spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type); | |
314 | } | |
315 | ||
fe1ae7fd AC |
316 | static void spcp8x5_init_termios(struct tty_struct *tty) |
317 | { | |
318 | /* for the 1st time call this function */ | |
319 | *(tty->termios) = tty_std_termios; | |
320 | tty->termios->c_cflag = B115200 | CS8 | CREAD | HUPCL | CLOCAL; | |
321 | tty->termios->c_ispeed = 115200; | |
322 | tty->termios->c_ospeed = 115200; | |
323 | } | |
324 | ||
619a6f1d | 325 | /* set the serial param for transfer. we should check if we really need to |
95da310e AC |
326 | * transfer. if we set flow control we should do this too. */ |
327 | static void spcp8x5_set_termios(struct tty_struct *tty, | |
328 | struct usb_serial_port *port, struct ktermios *old_termios) | |
619a6f1d GKH |
329 | { |
330 | struct usb_serial *serial = port->serial; | |
331 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); | |
332 | unsigned long flags; | |
95da310e | 333 | unsigned int cflag = tty->termios->c_cflag; |
619a6f1d GKH |
334 | unsigned int old_cflag = old_termios->c_cflag; |
335 | unsigned short uartdata; | |
336 | unsigned char buf[2] = {0, 0}; | |
337 | int baud; | |
338 | int i; | |
339 | u8 control; | |
340 | ||
619a6f1d GKH |
341 | |
342 | /* check that they really want us to change something */ | |
95da310e | 343 | if (!tty_termios_hw_change(tty->termios, old_termios)) |
619a6f1d GKH |
344 | return; |
345 | ||
346 | /* set DTR/RTS active */ | |
347 | spin_lock_irqsave(&priv->lock, flags); | |
348 | control = priv->line_control; | |
349 | if ((old_cflag & CBAUD) == B0) { | |
350 | priv->line_control |= MCR_DTR; | |
351 | if (!(old_cflag & CRTSCTS)) | |
352 | priv->line_control |= MCR_RTS; | |
353 | } | |
354 | if (control != priv->line_control) { | |
355 | control = priv->line_control; | |
356 | spin_unlock_irqrestore(&priv->lock, flags); | |
357 | spcp8x5_set_ctrlLine(serial->dev, control , priv->type); | |
358 | } else { | |
359 | spin_unlock_irqrestore(&priv->lock, flags); | |
360 | } | |
361 | ||
362 | /* Set Baud Rate */ | |
a419aef8 | 363 | baud = tty_get_baud_rate(tty); |
619a6f1d GKH |
364 | switch (baud) { |
365 | case 300: buf[0] = 0x00; break; | |
366 | case 600: buf[0] = 0x01; break; | |
367 | case 1200: buf[0] = 0x02; break; | |
368 | case 2400: buf[0] = 0x03; break; | |
369 | case 4800: buf[0] = 0x04; break; | |
370 | case 9600: buf[0] = 0x05; break; | |
371 | case 19200: buf[0] = 0x07; break; | |
372 | case 38400: buf[0] = 0x09; break; | |
373 | case 57600: buf[0] = 0x0a; break; | |
374 | case 115200: buf[0] = 0x0b; break; | |
375 | case 230400: buf[0] = 0x0c; break; | |
376 | case 460800: buf[0] = 0x0d; break; | |
377 | case 921600: buf[0] = 0x0e; break; | |
378 | /* case 1200000: buf[0] = 0x0f; break; */ | |
379 | /* case 2400000: buf[0] = 0x10; break; */ | |
380 | case 3000000: buf[0] = 0x11; break; | |
381 | /* case 6000000: buf[0] = 0x12; break; */ | |
382 | case 0: | |
383 | case 1000000: | |
384 | buf[0] = 0x0b; break; | |
385 | default: | |
194343d9 GKH |
386 | dev_err(&port->dev, "spcp825 driver does not support the " |
387 | "baudrate requested, using default of 9600.\n"); | |
619a6f1d GKH |
388 | } |
389 | ||
390 | /* Set Data Length : 00:5bit, 01:6bit, 10:7bit, 11:8bit */ | |
391 | if (cflag & CSIZE) { | |
392 | switch (cflag & CSIZE) { | |
393 | case CS5: | |
394 | buf[1] |= SET_UART_FORMAT_SIZE_5; | |
395 | break; | |
396 | case CS6: | |
397 | buf[1] |= SET_UART_FORMAT_SIZE_6; | |
398 | break; | |
399 | case CS7: | |
400 | buf[1] |= SET_UART_FORMAT_SIZE_7; | |
401 | break; | |
402 | default: | |
403 | case CS8: | |
404 | buf[1] |= SET_UART_FORMAT_SIZE_8; | |
405 | break; | |
406 | } | |
407 | } | |
408 | ||
409 | /* Set Stop bit2 : 0:1bit 1:2bit */ | |
410 | buf[1] |= (cflag & CSTOPB) ? SET_UART_FORMAT_STOP_2 : | |
411 | SET_UART_FORMAT_STOP_1; | |
412 | ||
413 | /* Set Parity bit3-4 01:Odd 11:Even */ | |
414 | if (cflag & PARENB) { | |
415 | buf[1] |= (cflag & PARODD) ? | |
416 | SET_UART_FORMAT_PAR_ODD : SET_UART_FORMAT_PAR_EVEN ; | |
417 | } else | |
418 | buf[1] |= SET_UART_FORMAT_PAR_NONE; | |
419 | ||
420 | uartdata = buf[0] | buf[1]<<8; | |
421 | ||
422 | i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), | |
423 | SET_UART_FORMAT_TYPE, SET_UART_FORMAT, | |
424 | uartdata, 0, NULL, 0, 100); | |
425 | if (i < 0) | |
194343d9 GKH |
426 | dev_err(&port->dev, "Set UART format %#x failed (error = %d)\n", |
427 | uartdata, i); | |
fe2baf87 | 428 | dev_dbg(&port->dev, "0x21:0x40:0:0 %d\n", i); |
619a6f1d GKH |
429 | |
430 | if (cflag & CRTSCTS) { | |
431 | /* enable hardware flow control */ | |
432 | spcp8x5_set_workMode(serial->dev, 0x000a, | |
433 | SET_WORKING_MODE_U2C, priv->type); | |
434 | } | |
619a6f1d GKH |
435 | } |
436 | ||
437 | /* open the serial port. do some usb system call. set termios and get the line | |
fa993ca8 | 438 | * status of the device. */ |
a509a7e4 | 439 | static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port) |
619a6f1d GKH |
440 | { |
441 | struct ktermios tmp_termios; | |
442 | struct usb_serial *serial = port->serial; | |
443 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); | |
444 | int ret; | |
445 | unsigned long flags; | |
446 | u8 status = 0x30; | |
447 | /* status 0x30 means DSR and CTS = 1 other CDC RI and delta = 0 */ | |
448 | ||
619a6f1d GKH |
449 | usb_clear_halt(serial->dev, port->write_urb->pipe); |
450 | usb_clear_halt(serial->dev, port->read_urb->pipe); | |
451 | ||
452 | ret = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), | |
453 | 0x09, 0x00, | |
454 | 0x01, 0x00, NULL, 0x00, 100); | |
455 | if (ret) | |
456 | return ret; | |
457 | ||
619a6f1d GKH |
458 | spcp8x5_set_ctrlLine(serial->dev, priv->line_control , priv->type); |
459 | ||
460 | /* Setup termios */ | |
95da310e AC |
461 | if (tty) |
462 | spcp8x5_set_termios(tty, port, &tmp_termios); | |
619a6f1d GKH |
463 | |
464 | spcp8x5_get_msr(serial->dev, &status, priv->type); | |
465 | ||
466 | /* may be we should update uart status here but now we did not do */ | |
467 | spin_lock_irqsave(&priv->lock, flags); | |
468 | priv->line_status = status & 0xf0 ; | |
469 | spin_unlock_irqrestore(&priv->lock, flags); | |
470 | ||
335f8514 | 471 | port->port.drain_delay = 256; |
fa993ca8 JH |
472 | |
473 | return usb_serial_generic_open(tty, port); | |
619a6f1d GKH |
474 | } |
475 | ||
fa993ca8 | 476 | static void spcp8x5_process_read_urb(struct urb *urb) |
619a6f1d GKH |
477 | { |
478 | struct usb_serial_port *port = urb->context; | |
479 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); | |
480 | struct tty_struct *tty; | |
481 | unsigned char *data = urb->transfer_buffer; | |
482 | unsigned long flags; | |
50de36f7 | 483 | u8 status; |
619a6f1d GKH |
484 | char tty_flag; |
485 | ||
619a6f1d GKH |
486 | /* get tty_flag from status */ |
487 | tty_flag = TTY_NORMAL; | |
488 | ||
489 | spin_lock_irqsave(&priv->lock, flags); | |
490 | status = priv->line_status; | |
491 | priv->line_status &= ~UART_STATE_TRANSIENT_MASK; | |
492 | spin_unlock_irqrestore(&priv->lock, flags); | |
493 | /* wake up the wait for termios */ | |
494 | wake_up_interruptible(&priv->delta_msr_wait); | |
495 | ||
fa993ca8 | 496 | if (!urb->actual_length) |
619a6f1d | 497 | return; |
619a6f1d | 498 | |
fa993ca8 JH |
499 | tty = tty_port_tty_get(&port->port); |
500 | if (!tty) | |
619a6f1d | 501 | return; |
619a6f1d | 502 | |
fa993ca8 JH |
503 | if (status & UART_STATE_TRANSIENT_MASK) { |
504 | /* break takes precedence over parity, which takes precedence | |
505 | * over framing errors */ | |
506 | if (status & UART_BREAK_ERROR) | |
507 | tty_flag = TTY_BREAK; | |
508 | else if (status & UART_PARITY_ERROR) | |
509 | tty_flag = TTY_PARITY; | |
510 | else if (status & UART_FRAME_ERROR) | |
511 | tty_flag = TTY_FRAME; | |
512 | dev_dbg(&port->dev, "tty_flag = %d\n", tty_flag); | |
619a6f1d | 513 | |
fa993ca8 JH |
514 | /* overrun is special, not associated with a char */ |
515 | if (status & UART_OVERRUN_ERROR) | |
516 | tty_insert_flip_char(tty, 0, TTY_OVERRUN); | |
d14fc1a7 LP |
517 | |
518 | if (status & UART_DCD) | |
519 | usb_serial_handle_dcd_change(port, tty, | |
520 | priv->line_status & MSR_STATUS_LINE_DCD); | |
619a6f1d GKH |
521 | } |
522 | ||
fa993ca8 JH |
523 | tty_insert_flip_string_fixed_flag(tty, data, tty_flag, |
524 | urb->actual_length); | |
525 | tty_flip_buffer_push(tty); | |
526 | tty_kref_put(tty); | |
619a6f1d GKH |
527 | } |
528 | ||
529 | static int spcp8x5_wait_modem_info(struct usb_serial_port *port, | |
530 | unsigned int arg) | |
531 | { | |
532 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); | |
533 | unsigned long flags; | |
534 | unsigned int prevstatus; | |
535 | unsigned int status; | |
536 | unsigned int changed; | |
537 | ||
538 | spin_lock_irqsave(&priv->lock, flags); | |
539 | prevstatus = priv->line_status; | |
540 | spin_unlock_irqrestore(&priv->lock, flags); | |
541 | ||
542 | while (1) { | |
543 | /* wake up in bulk read */ | |
544 | interruptible_sleep_on(&priv->delta_msr_wait); | |
545 | ||
546 | /* see if a signal did it */ | |
547 | if (signal_pending(current)) | |
548 | return -ERESTARTSYS; | |
549 | ||
550 | spin_lock_irqsave(&priv->lock, flags); | |
551 | status = priv->line_status; | |
552 | spin_unlock_irqrestore(&priv->lock, flags); | |
553 | ||
554 | changed = prevstatus^status; | |
555 | ||
556 | if (((arg & TIOCM_RNG) && (changed & MSR_STATUS_LINE_RI)) || | |
557 | ((arg & TIOCM_DSR) && (changed & MSR_STATUS_LINE_DSR)) || | |
558 | ((arg & TIOCM_CD) && (changed & MSR_STATUS_LINE_DCD)) || | |
559 | ((arg & TIOCM_CTS) && (changed & MSR_STATUS_LINE_CTS))) | |
560 | return 0; | |
561 | ||
562 | prevstatus = status; | |
563 | } | |
564 | /* NOTREACHED */ | |
565 | return 0; | |
566 | } | |
567 | ||
00a0d0d6 | 568 | static int spcp8x5_ioctl(struct tty_struct *tty, |
619a6f1d GKH |
569 | unsigned int cmd, unsigned long arg) |
570 | { | |
95da310e | 571 | struct usb_serial_port *port = tty->driver_data; |
fe2baf87 GKH |
572 | |
573 | dev_dbg(&port->dev, "%s (%d) cmd = 0x%04x\n", __func__, | |
574 | port->number, cmd); | |
619a6f1d GKH |
575 | |
576 | switch (cmd) { | |
577 | case TIOCMIWAIT: | |
fe2baf87 GKH |
578 | dev_dbg(&port->dev, "%s (%d) TIOCMIWAIT\n", __func__, |
579 | port->number); | |
619a6f1d GKH |
580 | return spcp8x5_wait_modem_info(port, arg); |
581 | ||
582 | default: | |
fe2baf87 GKH |
583 | dev_dbg(&port->dev, "%s not supported = 0x%04x", __func__, |
584 | cmd); | |
619a6f1d GKH |
585 | break; |
586 | } | |
587 | ||
588 | return -ENOIOCTLCMD; | |
589 | } | |
590 | ||
20b9d177 | 591 | static int spcp8x5_tiocmset(struct tty_struct *tty, |
619a6f1d GKH |
592 | unsigned int set, unsigned int clear) |
593 | { | |
95da310e | 594 | struct usb_serial_port *port = tty->driver_data; |
619a6f1d GKH |
595 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); |
596 | unsigned long flags; | |
597 | u8 control; | |
598 | ||
599 | spin_lock_irqsave(&priv->lock, flags); | |
600 | if (set & TIOCM_RTS) | |
601 | priv->line_control |= MCR_RTS; | |
602 | if (set & TIOCM_DTR) | |
603 | priv->line_control |= MCR_DTR; | |
604 | if (clear & TIOCM_RTS) | |
605 | priv->line_control &= ~MCR_RTS; | |
606 | if (clear & TIOCM_DTR) | |
607 | priv->line_control &= ~MCR_DTR; | |
608 | control = priv->line_control; | |
609 | spin_unlock_irqrestore(&priv->lock, flags); | |
610 | ||
611 | return spcp8x5_set_ctrlLine(port->serial->dev, control , priv->type); | |
612 | } | |
613 | ||
60b33c13 | 614 | static int spcp8x5_tiocmget(struct tty_struct *tty) |
619a6f1d | 615 | { |
95da310e | 616 | struct usb_serial_port *port = tty->driver_data; |
619a6f1d GKH |
617 | struct spcp8x5_private *priv = usb_get_serial_port_data(port); |
618 | unsigned long flags; | |
619 | unsigned int mcr; | |
620 | unsigned int status; | |
621 | unsigned int result; | |
622 | ||
623 | spin_lock_irqsave(&priv->lock, flags); | |
624 | mcr = priv->line_control; | |
625 | status = priv->line_status; | |
626 | spin_unlock_irqrestore(&priv->lock, flags); | |
627 | ||
628 | result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0) | |
629 | | ((mcr & MCR_RTS) ? TIOCM_RTS : 0) | |
630 | | ((status & MSR_STATUS_LINE_CTS) ? TIOCM_CTS : 0) | |
631 | | ((status & MSR_STATUS_LINE_DSR) ? TIOCM_DSR : 0) | |
632 | | ((status & MSR_STATUS_LINE_RI) ? TIOCM_RI : 0) | |
633 | | ((status & MSR_STATUS_LINE_DCD) ? TIOCM_CD : 0); | |
634 | ||
635 | return result; | |
636 | } | |
637 | ||
619a6f1d GKH |
638 | /* All of the device info needed for the spcp8x5 SIO serial converter */ |
639 | static struct usb_serial_driver spcp8x5_device = { | |
640 | .driver = { | |
641 | .owner = THIS_MODULE, | |
642 | .name = "SPCP8x5", | |
643 | }, | |
644 | .id_table = id_table, | |
619a6f1d GKH |
645 | .num_ports = 1, |
646 | .open = spcp8x5_open, | |
335f8514 AC |
647 | .dtr_rts = spcp8x5_dtr_rts, |
648 | .carrier_raised = spcp8x5_carrier_raised, | |
619a6f1d | 649 | .set_termios = spcp8x5_set_termios, |
fe1ae7fd | 650 | .init_termios = spcp8x5_init_termios, |
619a6f1d GKH |
651 | .ioctl = spcp8x5_ioctl, |
652 | .tiocmget = spcp8x5_tiocmget, | |
653 | .tiocmset = spcp8x5_tiocmset, | |
619a6f1d | 654 | .attach = spcp8x5_startup, |
f9c99bb8 | 655 | .release = spcp8x5_release, |
fa993ca8 | 656 | .process_read_urb = spcp8x5_process_read_urb, |
619a6f1d GKH |
657 | }; |
658 | ||
d860322f AS |
659 | static struct usb_serial_driver * const serial_drivers[] = { |
660 | &spcp8x5_device, NULL | |
661 | }; | |
662 | ||
68e24113 | 663 | module_usb_serial_driver(serial_drivers, id_table); |
619a6f1d GKH |
664 | |
665 | MODULE_DESCRIPTION(DRIVER_DESC); | |
666 | MODULE_VERSION(DRIVER_VERSION); | |
667 | MODULE_LICENSE("GPL"); | |
668 | ||
669 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
670 | MODULE_PARM_DESC(debug, "Debug enabled or not"); |