Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Prolific PL2303 USB to serial adaptor driver | |
3 | * | |
4d0dce3e | 4 | * Copyright (C) 2001-2007 Greg Kroah-Hartman (greg@kroah.com) |
1da177e4 LT |
5 | * Copyright (C) 2003 IBM Corp. |
6 | * | |
7 | * Original driver for 2.2.x by anonymous | |
8 | * | |
4d0dce3e GKH |
9 | * This program is free software; you can redistribute it and/or |
10 | * modify it under the terms of the GNU General Public License version | |
11 | * 2 as published by the Free Software Foundation. | |
1da177e4 | 12 | * |
3a0f43e9 AC |
13 | * See Documentation/usb/usb-serial.txt for more information on using this |
14 | * driver | |
1da177e4 | 15 | * |
1da177e4 LT |
16 | */ |
17 | ||
1da177e4 LT |
18 | #include <linux/kernel.h> |
19 | #include <linux/errno.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/slab.h> | |
22 | #include <linux/tty.h> | |
23 | #include <linux/tty_driver.h> | |
24 | #include <linux/tty_flip.h> | |
25 | #include <linux/serial.h> | |
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/spinlock.h> | |
3a0f43e9 | 29 | #include <linux/uaccess.h> |
1da177e4 | 30 | #include <linux/usb.h> |
a969888c | 31 | #include <linux/usb/serial.h> |
1da177e4 LT |
32 | #include "pl2303.h" |
33 | ||
34 | /* | |
35 | * Version Information | |
36 | */ | |
1da177e4 LT |
37 | #define DRIVER_DESC "Prolific PL2303 USB to serial adaptor driver" |
38 | ||
90ab5ee9 | 39 | static bool debug; |
1da177e4 | 40 | |
7d40d7e8 | 41 | static const struct usb_device_id id_table[] = { |
1da177e4 LT |
42 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) }, |
43 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ2) }, | |
3d861494 | 44 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_DCU11) }, |
1da177e4 LT |
45 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ3) }, |
46 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_PHAROS) }, | |
b483b6aa | 47 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_ALDIGA) }, |
4be2fa18 | 48 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MMX) }, |
727df356 | 49 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GPRS) }, |
18344a1c | 50 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_HCR331) }, |
96a3e79e | 51 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MOTOROLA) }, |
1da177e4 | 52 | { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) }, |
8a28dea3 | 53 | { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) }, |
1da177e4 LT |
54 | { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID) }, |
55 | { USB_DEVICE(ATEN_VENDOR_ID2, ATEN_PRODUCT_ID) }, | |
56 | { USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID) }, | |
57 | { USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID_UCSGT) }, | |
58 | { USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID) }, | |
58381719 | 59 | { USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID_2080) }, |
1da177e4 LT |
60 | { USB_DEVICE(MA620_VENDOR_ID, MA620_PRODUCT_ID) }, |
61 | { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID) }, | |
62 | { USB_DEVICE(TRIPP_VENDOR_ID, TRIPP_PRODUCT_ID) }, | |
63 | { USB_DEVICE(RADIOSHACK_VENDOR_ID, RADIOSHACK_PRODUCT_ID) }, | |
64 | { USB_DEVICE(DCU10_VENDOR_ID, DCU10_PRODUCT_ID) }, | |
65 | { USB_DEVICE(SITECOM_VENDOR_ID, SITECOM_PRODUCT_ID) }, | |
66 | { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_ID) }, | |
67 | { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_ID) }, | |
a8310f3b | 68 | { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_SX1) }, |
1da177e4 | 69 | { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X65) }, |
a8310f3b | 70 | { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X75) }, |
e7beb667 | 71 | { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_EF81) }, |
912299f6 | 72 | { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_ID_S81) }, /* Benq/Siemens S81 */ |
acbb36f1 | 73 | { USB_DEVICE(SYNTECH_VENDOR_ID, SYNTECH_PRODUCT_ID) }, |
c6c27721 CL |
74 | { USB_DEVICE(NOKIA_CA42_VENDOR_ID, NOKIA_CA42_PRODUCT_ID) }, |
75 | { USB_DEVICE(CA_42_CA42_VENDOR_ID, CA_42_CA42_PRODUCT_ID) }, | |
6cceb05f | 76 | { USB_DEVICE(SAGEM_VENDOR_ID, SAGEM_PRODUCT_ID) }, |
c6c27721 | 77 | { USB_DEVICE(LEADTEK_VENDOR_ID, LEADTEK_9531_PRODUCT_ID) }, |
491b04ce | 78 | { USB_DEVICE(SPEEDDRAGON_VENDOR_ID, SPEEDDRAGON_PRODUCT_ID) }, |
3b928474 | 79 | { USB_DEVICE(DATAPILOT_U2_VENDOR_ID, DATAPILOT_U2_PRODUCT_ID) }, |
b7aa94b6 | 80 | { USB_DEVICE(BELKIN_VENDOR_ID, BELKIN_PRODUCT_ID) }, |
8fd80133 | 81 | { USB_DEVICE(ALCOR_VENDOR_ID, ALCOR_PRODUCT_ID) }, |
2d94b981 | 82 | { USB_DEVICE(WS002IN_VENDOR_ID, WS002IN_PRODUCT_ID) }, |
9e3285db | 83 | { USB_DEVICE(COREGA_VENDOR_ID, COREGA_PRODUCT_ID) }, |
cc311ee7 | 84 | { USB_DEVICE(YCCABLE_VENDOR_ID, YCCABLE_PRODUCT_ID) }, |
7c992001 | 85 | { USB_DEVICE(SUPERIAL_VENDOR_ID, SUPERIAL_PRODUCT_ID) }, |
af4b8514 | 86 | { USB_DEVICE(HP_VENDOR_ID, HP_LD220_PRODUCT_ID) }, |
8540d666 | 87 | { USB_DEVICE(CRESSI_VENDOR_ID, CRESSI_EDY_PRODUCT_ID) }, |
f36ecd5d | 88 | { USB_DEVICE(ZEAGLE_VENDOR_ID, ZEAGLE_N2ITION3_PRODUCT_ID) }, |
49276560 | 89 | { USB_DEVICE(SONY_VENDOR_ID, SONY_QN3USB_PRODUCT_ID) }, |
35904e6b | 90 | { USB_DEVICE(SANWA_VENDOR_ID, SANWA_PRODUCT_ID) }, |
9a61d726 | 91 | { USB_DEVICE(ADLINK_VENDOR_ID, ADLINK_ND6530_PRODUCT_ID) }, |
598f0b70 | 92 | { USB_DEVICE(SMART_VENDOR_ID, SMART_PRODUCT_ID) }, |
1da177e4 LT |
93 | { } /* Terminating entry */ |
94 | }; | |
95 | ||
372db8a7 | 96 | MODULE_DEVICE_TABLE(usb, id_table); |
1da177e4 | 97 | |
1da177e4 LT |
98 | #define SET_LINE_REQUEST_TYPE 0x21 |
99 | #define SET_LINE_REQUEST 0x20 | |
100 | ||
101 | #define SET_CONTROL_REQUEST_TYPE 0x21 | |
102 | #define SET_CONTROL_REQUEST 0x22 | |
103 | #define CONTROL_DTR 0x01 | |
104 | #define CONTROL_RTS 0x02 | |
105 | ||
106 | #define BREAK_REQUEST_TYPE 0x21 | |
3a0f43e9 | 107 | #define BREAK_REQUEST 0x23 |
1da177e4 LT |
108 | #define BREAK_ON 0xffff |
109 | #define BREAK_OFF 0x0000 | |
110 | ||
111 | #define GET_LINE_REQUEST_TYPE 0xa1 | |
112 | #define GET_LINE_REQUEST 0x21 | |
113 | ||
114 | #define VENDOR_WRITE_REQUEST_TYPE 0x40 | |
115 | #define VENDOR_WRITE_REQUEST 0x01 | |
116 | ||
117 | #define VENDOR_READ_REQUEST_TYPE 0xc0 | |
118 | #define VENDOR_READ_REQUEST 0x01 | |
119 | ||
120 | #define UART_STATE 0x08 | |
121 | #define UART_STATE_TRANSIENT_MASK 0x74 | |
122 | #define UART_DCD 0x01 | |
123 | #define UART_DSR 0x02 | |
124 | #define UART_BREAK_ERROR 0x04 | |
125 | #define UART_RING 0x08 | |
126 | #define UART_FRAME_ERROR 0x10 | |
127 | #define UART_PARITY_ERROR 0x20 | |
128 | #define UART_OVERRUN_ERROR 0x40 | |
129 | #define UART_CTS 0x80 | |
130 | ||
1da177e4 LT |
131 | |
132 | enum pl2303_type { | |
133 | type_0, /* don't know the difference between type 0 and */ | |
134 | type_1, /* type 1, until someone from prolific tells us... */ | |
135 | HX, /* HX version of the pl2303 chip */ | |
136 | }; | |
137 | ||
138 | struct pl2303_private { | |
139 | spinlock_t lock; | |
1da177e4 LT |
140 | wait_queue_head_t delta_msr_wait; |
141 | u8 line_control; | |
142 | u8 line_status; | |
1da177e4 LT |
143 | enum pl2303_type type; |
144 | }; | |
145 | ||
eb44da0b SS |
146 | static int pl2303_vendor_read(__u16 value, __u16 index, |
147 | struct usb_serial *serial, unsigned char *buf) | |
148 | { | |
149 | int res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), | |
150 | VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE, | |
151 | value, index, buf, 1, 100); | |
d8789b2b GKH |
152 | dev_dbg(&serial->dev->dev, "0x%x:0x%x:0x%x:0x%x %d - %x\n", |
153 | VENDOR_READ_REQUEST_TYPE, VENDOR_READ_REQUEST, value, index, | |
154 | res, buf[0]); | |
eb44da0b SS |
155 | return res; |
156 | } | |
157 | ||
158 | static int pl2303_vendor_write(__u16 value, __u16 index, | |
159 | struct usb_serial *serial) | |
160 | { | |
161 | int res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), | |
162 | VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE, | |
163 | value, index, NULL, 0, 100); | |
d8789b2b GKH |
164 | dev_dbg(&serial->dev->dev, "0x%x:0x%x:0x%x:0x%x %d\n", |
165 | VENDOR_WRITE_REQUEST_TYPE, VENDOR_WRITE_REQUEST, value, index, | |
166 | res); | |
eb44da0b SS |
167 | return res; |
168 | } | |
169 | ||
372db8a7 | 170 | static int pl2303_startup(struct usb_serial *serial) |
1da177e4 LT |
171 | { |
172 | struct pl2303_private *priv; | |
173 | enum pl2303_type type = type_0; | |
3e152505 | 174 | unsigned char *buf; |
1da177e4 LT |
175 | int i; |
176 | ||
3e152505 SS |
177 | buf = kmalloc(10, GFP_KERNEL); |
178 | if (buf == NULL) | |
179 | return -ENOMEM; | |
180 | ||
1da177e4 LT |
181 | if (serial->dev->descriptor.bDeviceClass == 0x02) |
182 | type = type_0; | |
183 | else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) | |
184 | type = HX; | |
185 | else if (serial->dev->descriptor.bDeviceClass == 0x00) | |
186 | type = type_1; | |
187 | else if (serial->dev->descriptor.bDeviceClass == 0xFF) | |
188 | type = type_1; | |
d8789b2b | 189 | dev_dbg(&serial->interface->dev, "device type: %d\n", type); |
1da177e4 LT |
190 | |
191 | for (i = 0; i < serial->num_ports; ++i) { | |
80b6ca48 | 192 | priv = kzalloc(sizeof(struct pl2303_private), GFP_KERNEL); |
1da177e4 LT |
193 | if (!priv) |
194 | goto cleanup; | |
1da177e4 | 195 | spin_lock_init(&priv->lock); |
1da177e4 LT |
196 | init_waitqueue_head(&priv->delta_msr_wait); |
197 | priv->type = type; | |
198 | usb_set_serial_port_data(serial->port[i], priv); | |
199 | } | |
3e152505 SS |
200 | |
201 | pl2303_vendor_read(0x8484, 0, serial, buf); | |
202 | pl2303_vendor_write(0x0404, 0, serial); | |
203 | pl2303_vendor_read(0x8484, 0, serial, buf); | |
204 | pl2303_vendor_read(0x8383, 0, serial, buf); | |
205 | pl2303_vendor_read(0x8484, 0, serial, buf); | |
206 | pl2303_vendor_write(0x0404, 1, serial); | |
207 | pl2303_vendor_read(0x8484, 0, serial, buf); | |
208 | pl2303_vendor_read(0x8383, 0, serial, buf); | |
209 | pl2303_vendor_write(0, 1, serial); | |
210 | pl2303_vendor_write(1, 0, serial); | |
211 | if (type == HX) | |
212 | pl2303_vendor_write(2, 0x44, serial); | |
213 | else | |
214 | pl2303_vendor_write(2, 0x24, serial); | |
215 | ||
216 | kfree(buf); | |
1da177e4 LT |
217 | return 0; |
218 | ||
219 | cleanup: | |
3e152505 | 220 | kfree(buf); |
3a0f43e9 | 221 | for (--i; i >= 0; --i) { |
1da177e4 | 222 | priv = usb_get_serial_port_data(serial->port[i]); |
1da177e4 LT |
223 | kfree(priv); |
224 | usb_set_serial_port_data(serial->port[i], NULL); | |
225 | } | |
226 | return -ENOMEM; | |
227 | } | |
228 | ||
372db8a7 | 229 | static int set_control_lines(struct usb_device *dev, u8 value) |
1da177e4 LT |
230 | { |
231 | int retval; | |
3a0f43e9 | 232 | |
372db8a7 TG |
233 | retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
234 | SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE, | |
235 | value, 0, NULL, 0, 100); | |
d8789b2b GKH |
236 | dev_dbg(&dev->dev, "%s - value = %d, retval = %d\n", __func__, |
237 | value, retval); | |
1da177e4 LT |
238 | return retval; |
239 | } | |
240 | ||
95da310e AC |
241 | static void pl2303_set_termios(struct tty_struct *tty, |
242 | struct usb_serial_port *port, struct ktermios *old_termios) | |
1da177e4 LT |
243 | { |
244 | struct usb_serial *serial = port->serial; | |
245 | struct pl2303_private *priv = usb_get_serial_port_data(port); | |
246 | unsigned long flags; | |
247 | unsigned int cflag; | |
248 | unsigned char *buf; | |
249 | int baud; | |
250 | int i; | |
251 | u8 control; | |
25b82868 FS |
252 | const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, |
253 | 4800, 7200, 9600, 14400, 19200, 28800, 38400, | |
254 | 57600, 115200, 230400, 460800, 614400, | |
255 | 921600, 1228800, 2457600, 3000000, 6000000 }; | |
256 | int baud_floor, baud_ceil; | |
257 | int k; | |
1da177e4 | 258 | |
bf5e5834 AC |
259 | /* The PL2303 is reported to lose bytes if you change |
260 | serial settings even to the same values as before. Thus | |
261 | we actually need to filter in this specific case */ | |
262 | ||
95da310e | 263 | if (!tty_termios_hw_change(tty->termios, old_termios)) |
bf5e5834 AC |
264 | return; |
265 | ||
95da310e | 266 | cflag = tty->termios->c_cflag; |
1da177e4 | 267 | |
372db8a7 | 268 | buf = kzalloc(7, GFP_KERNEL); |
1da177e4 | 269 | if (!buf) { |
441b62c1 | 270 | dev_err(&port->dev, "%s - out of memory.\n", __func__); |
a5b6f60c | 271 | /* Report back no change occurred */ |
95da310e | 272 | *tty->termios = *old_termios; |
1da177e4 LT |
273 | return; |
274 | } | |
1da177e4 | 275 | |
372db8a7 TG |
276 | i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
277 | GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, | |
278 | 0, 0, buf, 7, 100); | |
d8789b2b | 279 | dev_dbg(&port->dev, "0xa1:0x21:0:0 %d - %x %x %x %x %x %x %x\n", i, |
372db8a7 | 280 | buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]); |
1da177e4 LT |
281 | |
282 | if (cflag & CSIZE) { | |
283 | switch (cflag & CSIZE) { | |
3a0f43e9 AC |
284 | case CS5: |
285 | buf[6] = 5; | |
286 | break; | |
287 | case CS6: | |
288 | buf[6] = 6; | |
289 | break; | |
290 | case CS7: | |
291 | buf[6] = 7; | |
292 | break; | |
293 | default: | |
294 | case CS8: | |
295 | buf[6] = 8; | |
296 | break; | |
1da177e4 | 297 | } |
d8789b2b | 298 | dev_dbg(&port->dev, "data bits = %d\n", buf[6]); |
1da177e4 LT |
299 | } |
300 | ||
25b82868 FS |
301 | /* For reference buf[0]:buf[3] baud rate value */ |
302 | /* NOTE: Only the values defined in baud_sup are supported ! | |
303 | * => if unsupported values are set, the PL2303 seems to use | |
304 | * 9600 baud (at least my PL2303X always does) | |
305 | */ | |
95da310e | 306 | baud = tty_get_baud_rate(tty); |
d8789b2b | 307 | dev_dbg(&port->dev, "baud requested = %d\n", baud); |
1da177e4 | 308 | if (baud) { |
25b82868 FS |
309 | /* Set baudrate to nearest supported value */ |
310 | for (k=0; k<ARRAY_SIZE(baud_sup); k++) { | |
311 | if (baud_sup[k] / baud) { | |
312 | baud_ceil = baud_sup[k]; | |
313 | if (k==0) { | |
314 | baud = baud_ceil; | |
315 | } else { | |
316 | baud_floor = baud_sup[k-1]; | |
317 | if ((baud_ceil % baud) | |
318 | > (baud % baud_floor)) | |
319 | baud = baud_floor; | |
320 | else | |
321 | baud = baud_ceil; | |
322 | } | |
323 | break; | |
324 | } | |
325 | } | |
326 | if (baud > 1228800) { | |
327 | /* type_0, type_1 only support up to 1228800 baud */ | |
328 | if (priv->type != HX) | |
329 | baud = 1228800; | |
330 | else if (baud > 6000000) | |
331 | baud = 6000000; | |
332 | } | |
d8789b2b | 333 | dev_dbg(&port->dev, "baud set = %d\n", baud); |
8d48fdf6 MS |
334 | if (baud <= 115200) { |
335 | buf[0] = baud & 0xff; | |
336 | buf[1] = (baud >> 8) & 0xff; | |
337 | buf[2] = (baud >> 16) & 0xff; | |
338 | buf[3] = (baud >> 24) & 0xff; | |
339 | } else { | |
340 | /* apparently the formula for higher speeds is: | |
341 | * baudrate = 12M * 32 / (2^buf[1]) / buf[0] | |
342 | */ | |
343 | unsigned tmp = 12*1000*1000*32 / baud; | |
344 | buf[3] = 0x80; | |
345 | buf[2] = 0; | |
346 | buf[1] = (tmp >= 256); | |
347 | while (tmp >= 256) { | |
348 | tmp >>= 2; | |
349 | buf[1] <<= 1; | |
350 | } | |
8d48fdf6 MS |
351 | buf[0] = tmp; |
352 | } | |
1da177e4 LT |
353 | } |
354 | ||
355 | /* For reference buf[4]=0 is 1 stop bits */ | |
356 | /* For reference buf[4]=1 is 1.5 stop bits */ | |
357 | /* For reference buf[4]=2 is 2 stop bits */ | |
358 | if (cflag & CSTOPB) { | |
29cf1b72 FS |
359 | /* NOTE: Comply with "real" UARTs / RS232: |
360 | * use 1.5 instead of 2 stop bits with 5 data bits | |
361 | */ | |
362 | if ((cflag & CSIZE) == CS5) { | |
363 | buf[4] = 1; | |
d8789b2b | 364 | dev_dbg(&port->dev, "stop bits = 1.5\n"); |
29cf1b72 FS |
365 | } else { |
366 | buf[4] = 2; | |
d8789b2b | 367 | dev_dbg(&port->dev, "stop bits = 2\n"); |
29cf1b72 | 368 | } |
1da177e4 LT |
369 | } else { |
370 | buf[4] = 0; | |
d8789b2b | 371 | dev_dbg(&port->dev, "stop bits = 1\n"); |
1da177e4 LT |
372 | } |
373 | ||
374 | if (cflag & PARENB) { | |
375 | /* For reference buf[5]=0 is none parity */ | |
376 | /* For reference buf[5]=1 is odd parity */ | |
377 | /* For reference buf[5]=2 is even parity */ | |
378 | /* For reference buf[5]=3 is mark parity */ | |
379 | /* For reference buf[5]=4 is space parity */ | |
380 | if (cflag & PARODD) { | |
6dd81b45 FS |
381 | if (cflag & CMSPAR) { |
382 | buf[5] = 3; | |
d8789b2b | 383 | dev_dbg(&port->dev, "parity = mark\n"); |
6dd81b45 FS |
384 | } else { |
385 | buf[5] = 1; | |
d8789b2b | 386 | dev_dbg(&port->dev, "parity = odd\n"); |
6dd81b45 | 387 | } |
1da177e4 | 388 | } else { |
6dd81b45 FS |
389 | if (cflag & CMSPAR) { |
390 | buf[5] = 4; | |
d8789b2b | 391 | dev_dbg(&port->dev, "parity = space\n"); |
6dd81b45 FS |
392 | } else { |
393 | buf[5] = 2; | |
d8789b2b | 394 | dev_dbg(&port->dev, "parity = even\n"); |
6dd81b45 | 395 | } |
1da177e4 LT |
396 | } |
397 | } else { | |
398 | buf[5] = 0; | |
d8789b2b | 399 | dev_dbg(&port->dev, "parity = none\n"); |
1da177e4 LT |
400 | } |
401 | ||
372db8a7 TG |
402 | i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), |
403 | SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE, | |
404 | 0, 0, buf, 7, 100); | |
d8789b2b | 405 | dev_dbg(&port->dev, "0x21:0x20:0:0 %d\n", i); |
1da177e4 LT |
406 | |
407 | /* change control lines if we are switching to or from B0 */ | |
408 | spin_lock_irqsave(&priv->lock, flags); | |
409 | control = priv->line_control; | |
410 | if ((cflag & CBAUD) == B0) | |
411 | priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); | |
ce5c9851 | 412 | else if ((old_termios->c_cflag & CBAUD) == B0) |
1da177e4 LT |
413 | priv->line_control |= (CONTROL_DTR | CONTROL_RTS); |
414 | if (control != priv->line_control) { | |
415 | control = priv->line_control; | |
416 | spin_unlock_irqrestore(&priv->lock, flags); | |
417 | set_control_lines(serial->dev, control); | |
418 | } else { | |
419 | spin_unlock_irqrestore(&priv->lock, flags); | |
420 | } | |
372db8a7 | 421 | |
1da177e4 LT |
422 | buf[0] = buf[1] = buf[2] = buf[3] = buf[4] = buf[5] = buf[6] = 0; |
423 | ||
372db8a7 TG |
424 | i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), |
425 | GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, | |
426 | 0, 0, buf, 7, 100); | |
d8789b2b | 427 | dev_dbg(&port->dev, "0xa1:0x21:0:0 %d - %x %x %x %x %x %x %x\n", i, |
1da177e4 LT |
428 | buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]); |
429 | ||
430 | if (cflag & CRTSCTS) { | |
1da177e4 | 431 | if (priv->type == HX) |
eb44da0b | 432 | pl2303_vendor_write(0x0, 0x61, serial); |
1da177e4 | 433 | else |
eb44da0b | 434 | pl2303_vendor_write(0x0, 0x41, serial); |
715f9527 | 435 | } else { |
eb44da0b | 436 | pl2303_vendor_write(0x0, 0x0, serial); |
1da177e4 | 437 | } |
572d3138 | 438 | |
25b82868 | 439 | /* Save resulting baud rate */ |
df64c471 | 440 | if (baud) |
95da310e | 441 | tty_encode_baud_rate(tty, baud, baud); |
df64c471 | 442 | |
572d3138 TG |
443 | kfree(buf); |
444 | } | |
445 | ||
335f8514 AC |
446 | static void pl2303_dtr_rts(struct usb_serial_port *port, int on) |
447 | { | |
448 | struct pl2303_private *priv = usb_get_serial_port_data(port); | |
449 | unsigned long flags; | |
450 | u8 control; | |
451 | ||
452 | spin_lock_irqsave(&priv->lock, flags); | |
453 | /* Change DTR and RTS */ | |
454 | if (on) | |
455 | priv->line_control |= (CONTROL_DTR | CONTROL_RTS); | |
456 | else | |
457 | priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); | |
458 | control = priv->line_control; | |
459 | spin_unlock_irqrestore(&priv->lock, flags); | |
460 | set_control_lines(port->serial->dev, control); | |
461 | } | |
462 | ||
463 | static void pl2303_close(struct usb_serial_port *port) | |
572d3138 | 464 | { |
8b0127b2 | 465 | usb_serial_generic_close(port); |
572d3138 | 466 | usb_kill_urb(port->interrupt_in_urb); |
1da177e4 LT |
467 | } |
468 | ||
a509a7e4 | 469 | static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) |
1da177e4 | 470 | { |
606d099c | 471 | struct ktermios tmp_termios; |
1da177e4 LT |
472 | struct usb_serial *serial = port->serial; |
473 | struct pl2303_private *priv = usb_get_serial_port_data(port); | |
1da177e4 LT |
474 | int result; |
475 | ||
1694899f D |
476 | if (priv->type != HX) { |
477 | usb_clear_halt(serial->dev, port->write_urb->pipe); | |
478 | usb_clear_halt(serial->dev, port->read_urb->pipe); | |
3e152505 | 479 | } else { |
1da177e4 | 480 | /* reset upstream data pipes */ |
eb44da0b SS |
481 | pl2303_vendor_write(8, 0, serial); |
482 | pl2303_vendor_write(9, 0, serial); | |
1da177e4 LT |
483 | } |
484 | ||
1da177e4 | 485 | /* Setup termios */ |
95da310e AC |
486 | if (tty) |
487 | pl2303_set_termios(tty, port, &tmp_termios); | |
1da177e4 | 488 | |
372db8a7 | 489 | result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); |
1da177e4 | 490 | if (result) { |
372db8a7 | 491 | dev_err(&port->dev, "%s - failed submitting interrupt urb," |
441b62c1 | 492 | " error %d\n", __func__, result); |
db6e9186 | 493 | return result; |
1da177e4 | 494 | } |
d4691c3f | 495 | |
f5230a53 | 496 | result = usb_serial_generic_open(tty, port); |
d4691c3f JH |
497 | if (result) { |
498 | usb_kill_urb(port->interrupt_in_urb); | |
499 | return result; | |
500 | } | |
501 | ||
335f8514 | 502 | port->port.drain_delay = 256; |
1da177e4 LT |
503 | return 0; |
504 | } | |
505 | ||
20b9d177 | 506 | static int pl2303_tiocmset(struct tty_struct *tty, |
372db8a7 | 507 | unsigned int set, unsigned int clear) |
1da177e4 | 508 | { |
95da310e | 509 | struct usb_serial_port *port = tty->driver_data; |
6f1efd6c | 510 | struct usb_serial *serial = port->serial; |
1da177e4 LT |
511 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
512 | unsigned long flags; | |
513 | u8 control; | |
6f1efd6c | 514 | int ret; |
6fdd8e8e | 515 | |
372db8a7 | 516 | spin_lock_irqsave(&priv->lock, flags); |
1da177e4 LT |
517 | if (set & TIOCM_RTS) |
518 | priv->line_control |= CONTROL_RTS; | |
519 | if (set & TIOCM_DTR) | |
520 | priv->line_control |= CONTROL_DTR; | |
521 | if (clear & TIOCM_RTS) | |
522 | priv->line_control &= ~CONTROL_RTS; | |
523 | if (clear & TIOCM_DTR) | |
524 | priv->line_control &= ~CONTROL_DTR; | |
525 | control = priv->line_control; | |
372db8a7 | 526 | spin_unlock_irqrestore(&priv->lock, flags); |
1da177e4 | 527 | |
6f1efd6c JH |
528 | mutex_lock(&serial->disc_mutex); |
529 | if (!serial->disconnected) | |
530 | ret = set_control_lines(serial->dev, control); | |
531 | else | |
532 | ret = -ENODEV; | |
533 | mutex_unlock(&serial->disc_mutex); | |
534 | ||
535 | return ret; | |
1da177e4 LT |
536 | } |
537 | ||
60b33c13 | 538 | static int pl2303_tiocmget(struct tty_struct *tty) |
1da177e4 | 539 | { |
95da310e | 540 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
541 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
542 | unsigned long flags; | |
543 | unsigned int mcr; | |
544 | unsigned int status; | |
545 | unsigned int result; | |
546 | ||
372db8a7 | 547 | spin_lock_irqsave(&priv->lock, flags); |
1da177e4 LT |
548 | mcr = priv->line_control; |
549 | status = priv->line_status; | |
372db8a7 | 550 | spin_unlock_irqrestore(&priv->lock, flags); |
1da177e4 LT |
551 | |
552 | result = ((mcr & CONTROL_DTR) ? TIOCM_DTR : 0) | |
553 | | ((mcr & CONTROL_RTS) ? TIOCM_RTS : 0) | |
554 | | ((status & UART_CTS) ? TIOCM_CTS : 0) | |
555 | | ((status & UART_DSR) ? TIOCM_DSR : 0) | |
556 | | ((status & UART_RING) ? TIOCM_RI : 0) | |
557 | | ((status & UART_DCD) ? TIOCM_CD : 0); | |
558 | ||
d8789b2b | 559 | dev_dbg(&port->dev, "%s - result = %x\n", __func__, result); |
1da177e4 LT |
560 | |
561 | return result; | |
562 | } | |
563 | ||
335f8514 AC |
564 | static int pl2303_carrier_raised(struct usb_serial_port *port) |
565 | { | |
566 | struct pl2303_private *priv = usb_get_serial_port_data(port); | |
567 | if (priv->line_status & UART_DCD) | |
568 | return 1; | |
569 | return 0; | |
570 | } | |
571 | ||
1da177e4 LT |
572 | static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) |
573 | { | |
574 | struct pl2303_private *priv = usb_get_serial_port_data(port); | |
575 | unsigned long flags; | |
576 | unsigned int prevstatus; | |
577 | unsigned int status; | |
578 | unsigned int changed; | |
579 | ||
372db8a7 | 580 | spin_lock_irqsave(&priv->lock, flags); |
1da177e4 | 581 | prevstatus = priv->line_status; |
372db8a7 | 582 | spin_unlock_irqrestore(&priv->lock, flags); |
1da177e4 LT |
583 | |
584 | while (1) { | |
585 | interruptible_sleep_on(&priv->delta_msr_wait); | |
586 | /* see if a signal did it */ | |
587 | if (signal_pending(current)) | |
588 | return -ERESTARTSYS; | |
372db8a7 TG |
589 | |
590 | spin_lock_irqsave(&priv->lock, flags); | |
1da177e4 | 591 | status = priv->line_status; |
372db8a7 TG |
592 | spin_unlock_irqrestore(&priv->lock, flags); |
593 | ||
3a0f43e9 | 594 | changed = prevstatus ^ status; |
372db8a7 | 595 | |
1da177e4 LT |
596 | if (((arg & TIOCM_RNG) && (changed & UART_RING)) || |
597 | ((arg & TIOCM_DSR) && (changed & UART_DSR)) || | |
598 | ((arg & TIOCM_CD) && (changed & UART_DCD)) || | |
3a0f43e9 | 599 | ((arg & TIOCM_CTS) && (changed & UART_CTS))) { |
1da177e4 LT |
600 | return 0; |
601 | } | |
602 | prevstatus = status; | |
603 | } | |
604 | /* NOTREACHED */ | |
605 | return 0; | |
606 | } | |
607 | ||
00a0d0d6 | 608 | static int pl2303_ioctl(struct tty_struct *tty, |
372db8a7 | 609 | unsigned int cmd, unsigned long arg) |
1da177e4 | 610 | { |
67b9946d | 611 | struct serial_struct ser; |
95da310e | 612 | struct usb_serial_port *port = tty->driver_data; |
d8789b2b GKH |
613 | |
614 | dev_dbg(&port->dev, "%s cmd = 0x%04x\n", __func__, cmd); | |
1da177e4 LT |
615 | |
616 | switch (cmd) { | |
67b9946d JT |
617 | case TIOCGSERIAL: |
618 | memset(&ser, 0, sizeof ser); | |
619 | ser.type = PORT_16654; | |
620 | ser.line = port->serial->minor; | |
621 | ser.port = port->number; | |
622 | ser.baud_base = 460800; | |
623 | ||
624 | if (copy_to_user((void __user *)arg, &ser, sizeof ser)) | |
625 | return -EFAULT; | |
626 | ||
627 | return 0; | |
628 | ||
3a0f43e9 | 629 | case TIOCMIWAIT: |
d8789b2b | 630 | dev_dbg(&port->dev, "%s TIOCMIWAIT\n", __func__); |
3a0f43e9 AC |
631 | return wait_modem_info(port, arg); |
632 | default: | |
d8789b2b | 633 | dev_dbg(&port->dev, "%s not supported = 0x%04x\n", __func__, cmd); |
3a0f43e9 | 634 | break; |
1da177e4 | 635 | } |
1da177e4 LT |
636 | return -ENOIOCTLCMD; |
637 | } | |
638 | ||
95da310e | 639 | static void pl2303_break_ctl(struct tty_struct *tty, int break_state) |
1da177e4 | 640 | { |
95da310e | 641 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
642 | struct usb_serial *serial = port->serial; |
643 | u16 state; | |
644 | int result; | |
645 | ||
1da177e4 LT |
646 | if (break_state == 0) |
647 | state = BREAK_OFF; | |
648 | else | |
649 | state = BREAK_ON; | |
d8789b2b | 650 | dev_dbg(&port->dev, "%s - turning break %s\n", __func__, |
3a0f43e9 | 651 | state == BREAK_OFF ? "off" : "on"); |
1da177e4 | 652 | |
372db8a7 TG |
653 | result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), |
654 | BREAK_REQUEST, BREAK_REQUEST_TYPE, state, | |
655 | 0, NULL, 0, 100); | |
1da177e4 | 656 | if (result) |
d8789b2b | 657 | dev_err(&port->dev, "error sending break = %d\n", result); |
1da177e4 LT |
658 | } |
659 | ||
f9c99bb8 | 660 | static void pl2303_release(struct usb_serial *serial) |
1da177e4 LT |
661 | { |
662 | int i; | |
663 | struct pl2303_private *priv; | |
664 | ||
1da177e4 LT |
665 | for (i = 0; i < serial->num_ports; ++i) { |
666 | priv = usb_get_serial_port_data(serial->port[i]); | |
684c6e30 | 667 | kfree(priv); |
372db8a7 | 668 | } |
1da177e4 LT |
669 | } |
670 | ||
97bb13ec FL |
671 | static void pl2303_update_line_status(struct usb_serial_port *port, |
672 | unsigned char *data, | |
673 | unsigned int actual_length) | |
674 | { | |
675 | ||
676 | struct pl2303_private *priv = usb_get_serial_port_data(port); | |
d14fc1a7 | 677 | struct tty_struct *tty; |
97bb13ec FL |
678 | unsigned long flags; |
679 | u8 status_idx = UART_STATE; | |
95f209f9 | 680 | u8 length = UART_STATE + 1; |
d14fc1a7 | 681 | u8 prev_line_status; |
9c537616 | 682 | u16 idv, idp; |
97bb13ec | 683 | |
9c537616 TG |
684 | idv = le16_to_cpu(port->serial->dev->descriptor.idVendor); |
685 | idp = le16_to_cpu(port->serial->dev->descriptor.idProduct); | |
686 | ||
687 | ||
688 | if (idv == SIEMENS_VENDOR_ID) { | |
689 | if (idp == SIEMENS_PRODUCT_ID_X65 || | |
690 | idp == SIEMENS_PRODUCT_ID_SX1 || | |
691 | idp == SIEMENS_PRODUCT_ID_X75) { | |
692 | ||
693 | length = 1; | |
694 | status_idx = 0; | |
695 | } | |
97bb13ec FL |
696 | } |
697 | ||
698 | if (actual_length < length) | |
a009b75a | 699 | return; |
97bb13ec | 700 | |
3a0f43e9 | 701 | /* Save off the uart status for others to look at */ |
97bb13ec | 702 | spin_lock_irqsave(&priv->lock, flags); |
d14fc1a7 | 703 | prev_line_status = priv->line_status; |
97bb13ec FL |
704 | priv->line_status = data[status_idx]; |
705 | spin_unlock_irqrestore(&priv->lock, flags); | |
430eb0d2 JW |
706 | if (priv->line_status & UART_BREAK_ERROR) |
707 | usb_serial_handle_break(port); | |
372db8a7 | 708 | wake_up_interruptible(&priv->delta_msr_wait); |
d14fc1a7 LP |
709 | |
710 | tty = tty_port_tty_get(&port->port); | |
711 | if (!tty) | |
712 | return; | |
713 | if ((priv->line_status ^ prev_line_status) & UART_DCD) | |
714 | usb_serial_handle_dcd_change(port, tty, | |
715 | priv->line_status & UART_DCD); | |
716 | tty_kref_put(tty); | |
97bb13ec | 717 | } |
1da177e4 | 718 | |
7d12e780 | 719 | static void pl2303_read_int_callback(struct urb *urb) |
1da177e4 | 720 | { |
cdc97792 | 721 | struct usb_serial_port *port = urb->context; |
1da177e4 | 722 | unsigned char *data = urb->transfer_buffer; |
97bb13ec | 723 | unsigned int actual_length = urb->actual_length; |
461d696a GKH |
724 | int status = urb->status; |
725 | int retval; | |
1da177e4 | 726 | |
461d696a | 727 | switch (status) { |
1da177e4 LT |
728 | case 0: |
729 | /* success */ | |
730 | break; | |
731 | case -ECONNRESET: | |
732 | case -ENOENT: | |
733 | case -ESHUTDOWN: | |
734 | /* this urb is terminated, clean up */ | |
d8789b2b GKH |
735 | dev_dbg(&port->dev, "%s - urb shutting down with status: %d\n", |
736 | __func__, status); | |
1da177e4 LT |
737 | return; |
738 | default: | |
d8789b2b GKH |
739 | dev_dbg(&port->dev, "%s - nonzero urb status received: %d\n", |
740 | __func__, status); | |
1da177e4 LT |
741 | goto exit; |
742 | } | |
743 | ||
59d33f2f | 744 | usb_serial_debug_data(&port->dev, __func__, |
372db8a7 TG |
745 | urb->actual_length, urb->transfer_buffer); |
746 | ||
97bb13ec | 747 | pl2303_update_line_status(port, data, actual_length); |
1da177e4 | 748 | |
1da177e4 | 749 | exit: |
461d696a GKH |
750 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
751 | if (retval) | |
d8789b2b | 752 | dev_err(&port->dev, |
372db8a7 | 753 | "%s - usb_submit_urb failed with result %d\n", |
441b62c1 | 754 | __func__, retval); |
1da177e4 LT |
755 | } |
756 | ||
f08e07ac | 757 | static void pl2303_process_read_urb(struct urb *urb) |
d4fc4a7b | 758 | { |
f08e07ac JH |
759 | struct usb_serial_port *port = urb->context; |
760 | struct pl2303_private *priv = usb_get_serial_port_data(port); | |
761 | struct tty_struct *tty; | |
d4fc4a7b | 762 | unsigned char *data = urb->transfer_buffer; |
d4fc4a7b | 763 | char tty_flag = TTY_NORMAL; |
f08e07ac JH |
764 | unsigned long flags; |
765 | u8 line_status; | |
766 | int i; | |
767 | ||
768 | /* update line status */ | |
769 | spin_lock_irqsave(&priv->lock, flags); | |
770 | line_status = priv->line_status; | |
771 | priv->line_status &= ~UART_STATE_TRANSIENT_MASK; | |
772 | spin_unlock_irqrestore(&priv->lock, flags); | |
773 | wake_up_interruptible(&priv->delta_msr_wait); | |
774 | ||
775 | if (!urb->actual_length) | |
776 | return; | |
777 | ||
778 | tty = tty_port_tty_get(&port->port); | |
779 | if (!tty) | |
780 | return; | |
781 | ||
d4fc4a7b AC |
782 | /* break takes precedence over parity, */ |
783 | /* which takes precedence over framing errors */ | |
784 | if (line_status & UART_BREAK_ERROR) | |
785 | tty_flag = TTY_BREAK; | |
786 | else if (line_status & UART_PARITY_ERROR) | |
787 | tty_flag = TTY_PARITY; | |
788 | else if (line_status & UART_FRAME_ERROR) | |
789 | tty_flag = TTY_FRAME; | |
d8789b2b | 790 | dev_dbg(&port->dev, "%s - tty_flag = %d\n", __func__, tty_flag); |
d4fc4a7b | 791 | |
d4fc4a7b AC |
792 | /* overrun is special, not associated with a char */ |
793 | if (line_status & UART_OVERRUN_ERROR) | |
794 | tty_insert_flip_char(tty, 0, TTY_OVERRUN); | |
9388e2e7 | 795 | |
d45cc8df | 796 | if (port->port.console && port->sysrq) { |
d4fc4a7b | 797 | for (i = 0; i < urb->actual_length; ++i) |
6ee9f4b4 | 798 | if (!usb_serial_handle_sysrq_char(port, data[i])) |
d4fc4a7b | 799 | tty_insert_flip_char(tty, data[i], tty_flag); |
d45cc8df JH |
800 | } else { |
801 | tty_insert_flip_string_fixed_flag(tty, data, tty_flag, | |
802 | urb->actual_length); | |
9388e2e7 | 803 | } |
1da177e4 | 804 | |
f08e07ac | 805 | tty_flip_buffer_push(tty); |
4a90f09b | 806 | tty_kref_put(tty); |
1da177e4 LT |
807 | } |
808 | ||
572d3138 TG |
809 | /* All of the device info needed for the PL2303 SIO serial converter */ |
810 | static struct usb_serial_driver pl2303_device = { | |
811 | .driver = { | |
812 | .owner = THIS_MODULE, | |
813 | .name = "pl2303", | |
814 | }, | |
815 | .id_table = id_table, | |
572d3138 | 816 | .num_ports = 1, |
7919c2fd | 817 | .bulk_in_size = 256, |
3efeaff6 | 818 | .bulk_out_size = 256, |
572d3138 TG |
819 | .open = pl2303_open, |
820 | .close = pl2303_close, | |
335f8514 AC |
821 | .dtr_rts = pl2303_dtr_rts, |
822 | .carrier_raised = pl2303_carrier_raised, | |
572d3138 TG |
823 | .ioctl = pl2303_ioctl, |
824 | .break_ctl = pl2303_break_ctl, | |
825 | .set_termios = pl2303_set_termios, | |
826 | .tiocmget = pl2303_tiocmget, | |
827 | .tiocmset = pl2303_tiocmset, | |
f08e07ac | 828 | .process_read_urb = pl2303_process_read_urb, |
572d3138 | 829 | .read_int_callback = pl2303_read_int_callback, |
572d3138 | 830 | .attach = pl2303_startup, |
f9c99bb8 | 831 | .release = pl2303_release, |
572d3138 | 832 | }; |
1da177e4 | 833 | |
f667ddad AS |
834 | static struct usb_serial_driver * const serial_drivers[] = { |
835 | &pl2303_device, NULL | |
836 | }; | |
837 | ||
68e24113 | 838 | module_usb_serial_driver(serial_drivers, id_table); |
1da177e4 LT |
839 | |
840 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1da177e4 LT |
841 | MODULE_LICENSE("GPL"); |
842 | ||
843 | module_param(debug, bool, S_IRUGO | S_IWUSR); | |
844 | MODULE_PARM_DESC(debug, "Debug enabled or not"); | |
845 |