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Commit | Line | Data |
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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 LT |
15 | */ |
16 | ||
1da177e4 LT |
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/serial.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/moduleparam.h> | |
27 | #include <linux/spinlock.h> | |
3a0f43e9 | 28 | #include <linux/uaccess.h> |
1da177e4 | 29 | #include <linux/usb.h> |
a969888c | 30 | #include <linux/usb/serial.h> |
b2d6d98f | 31 | #include <asm/unaligned.h> |
1da177e4 LT |
32 | #include "pl2303.h" |
33 | ||
228e4105 JH |
34 | |
35 | #define PL2303_QUIRK_UART_STATE_IDX0 BIT(0) | |
36 | ||
7d40d7e8 | 37 | static const struct usb_device_id id_table[] = { |
1da177e4 LT |
38 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID) }, |
39 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ2) }, | |
3d861494 | 40 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_DCU11) }, |
1da177e4 LT |
41 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_RSAQ3) }, |
42 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_PHAROS) }, | |
b483b6aa | 43 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_ALDIGA) }, |
4be2fa18 | 44 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MMX) }, |
727df356 | 45 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GPRS) }, |
18344a1c | 46 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_HCR331) }, |
96a3e79e | 47 | { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MOTOROLA) }, |
1da177e4 | 48 | { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) }, |
8a28dea3 | 49 | { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) }, |
1da177e4 LT |
50 | { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID) }, |
51 | { USB_DEVICE(ATEN_VENDOR_ID2, ATEN_PRODUCT_ID) }, | |
52 | { USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID) }, | |
53 | { USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID_UCSGT) }, | |
54 | { USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID) }, | |
58381719 | 55 | { USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID_2080) }, |
1da177e4 LT |
56 | { USB_DEVICE(MA620_VENDOR_ID, MA620_PRODUCT_ID) }, |
57 | { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID) }, | |
58 | { USB_DEVICE(TRIPP_VENDOR_ID, TRIPP_PRODUCT_ID) }, | |
59 | { USB_DEVICE(RADIOSHACK_VENDOR_ID, RADIOSHACK_PRODUCT_ID) }, | |
60 | { USB_DEVICE(DCU10_VENDOR_ID, DCU10_PRODUCT_ID) }, | |
61 | { USB_DEVICE(SITECOM_VENDOR_ID, SITECOM_PRODUCT_ID) }, | |
62 | { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_ID) }, | |
63 | { USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_ID) }, | |
228e4105 JH |
64 | { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_SX1), |
65 | .driver_info = PL2303_QUIRK_UART_STATE_IDX0 }, | |
66 | { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X65), | |
67 | .driver_info = PL2303_QUIRK_UART_STATE_IDX0 }, | |
68 | { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_X75), | |
69 | .driver_info = PL2303_QUIRK_UART_STATE_IDX0 }, | |
e7beb667 | 70 | { USB_DEVICE(SIEMENS_VENDOR_ID, SIEMENS_PRODUCT_ID_EF81) }, |
912299f6 | 71 | { USB_DEVICE(BENQ_VENDOR_ID, BENQ_PRODUCT_ID_S81) }, /* Benq/Siemens S81 */ |
acbb36f1 | 72 | { USB_DEVICE(SYNTECH_VENDOR_ID, SYNTECH_PRODUCT_ID) }, |
c6c27721 CL |
73 | { USB_DEVICE(NOKIA_CA42_VENDOR_ID, NOKIA_CA42_PRODUCT_ID) }, |
74 | { USB_DEVICE(CA_42_CA42_VENDOR_ID, CA_42_CA42_PRODUCT_ID) }, | |
6cceb05f | 75 | { USB_DEVICE(SAGEM_VENDOR_ID, SAGEM_PRODUCT_ID) }, |
c6c27721 | 76 | { USB_DEVICE(LEADTEK_VENDOR_ID, LEADTEK_9531_PRODUCT_ID) }, |
491b04ce | 77 | { USB_DEVICE(SPEEDDRAGON_VENDOR_ID, SPEEDDRAGON_PRODUCT_ID) }, |
3b928474 | 78 | { USB_DEVICE(DATAPILOT_U2_VENDOR_ID, DATAPILOT_U2_PRODUCT_ID) }, |
b7aa94b6 | 79 | { USB_DEVICE(BELKIN_VENDOR_ID, BELKIN_PRODUCT_ID) }, |
8fd80133 | 80 | { USB_DEVICE(ALCOR_VENDOR_ID, ALCOR_PRODUCT_ID) }, |
2d94b981 | 81 | { USB_DEVICE(WS002IN_VENDOR_ID, WS002IN_PRODUCT_ID) }, |
9e3285db | 82 | { USB_DEVICE(COREGA_VENDOR_ID, COREGA_PRODUCT_ID) }, |
cc311ee7 | 83 | { USB_DEVICE(YCCABLE_VENDOR_ID, YCCABLE_PRODUCT_ID) }, |
7c992001 | 84 | { USB_DEVICE(SUPERIAL_VENDOR_ID, SUPERIAL_PRODUCT_ID) }, |
af4b8514 | 85 | { USB_DEVICE(HP_VENDOR_ID, HP_LD220_PRODUCT_ID) }, |
8540d666 | 86 | { USB_DEVICE(CRESSI_VENDOR_ID, CRESSI_EDY_PRODUCT_ID) }, |
f36ecd5d | 87 | { USB_DEVICE(ZEAGLE_VENDOR_ID, ZEAGLE_N2ITION3_PRODUCT_ID) }, |
49276560 | 88 | { USB_DEVICE(SONY_VENDOR_ID, SONY_QN3USB_PRODUCT_ID) }, |
35904e6b | 89 | { USB_DEVICE(SANWA_VENDOR_ID, SANWA_PRODUCT_ID) }, |
9a61d726 | 90 | { USB_DEVICE(ADLINK_VENDOR_ID, ADLINK_ND6530_PRODUCT_ID) }, |
598f0b70 | 91 | { USB_DEVICE(SMART_VENDOR_ID, SMART_PRODUCT_ID) }, |
1da177e4 LT |
92 | { } /* Terminating entry */ |
93 | }; | |
94 | ||
372db8a7 | 95 | MODULE_DEVICE_TABLE(usb, id_table); |
1da177e4 | 96 | |
1da177e4 LT |
97 | #define SET_LINE_REQUEST_TYPE 0x21 |
98 | #define SET_LINE_REQUEST 0x20 | |
99 | ||
100 | #define SET_CONTROL_REQUEST_TYPE 0x21 | |
101 | #define SET_CONTROL_REQUEST 0x22 | |
102 | #define CONTROL_DTR 0x01 | |
103 | #define CONTROL_RTS 0x02 | |
104 | ||
105 | #define BREAK_REQUEST_TYPE 0x21 | |
3a0f43e9 | 106 | #define BREAK_REQUEST 0x23 |
1da177e4 LT |
107 | #define BREAK_ON 0xffff |
108 | #define BREAK_OFF 0x0000 | |
109 | ||
110 | #define GET_LINE_REQUEST_TYPE 0xa1 | |
111 | #define GET_LINE_REQUEST 0x21 | |
112 | ||
113 | #define VENDOR_WRITE_REQUEST_TYPE 0x40 | |
114 | #define VENDOR_WRITE_REQUEST 0x01 | |
115 | ||
116 | #define VENDOR_READ_REQUEST_TYPE 0xc0 | |
117 | #define VENDOR_READ_REQUEST 0x01 | |
118 | ||
228e4105 | 119 | #define UART_STATE_INDEX 8 |
1da177e4 LT |
120 | #define UART_STATE_TRANSIENT_MASK 0x74 |
121 | #define UART_DCD 0x01 | |
122 | #define UART_DSR 0x02 | |
123 | #define UART_BREAK_ERROR 0x04 | |
124 | #define UART_RING 0x08 | |
125 | #define UART_FRAME_ERROR 0x10 | |
126 | #define UART_PARITY_ERROR 0x20 | |
127 | #define UART_OVERRUN_ERROR 0x40 | |
128 | #define UART_CTS 0x80 | |
129 | ||
1da177e4 LT |
130 | |
131 | enum pl2303_type { | |
7f966ac7 JH |
132 | TYPE_01, /* Type 0 and 1 (difference unknown) */ |
133 | TYPE_HX, /* HX version of the pl2303 chip */ | |
1da177e4 LT |
134 | }; |
135 | ||
8bf769eb JH |
136 | struct pl2303_serial_private { |
137 | enum pl2303_type type; | |
228e4105 | 138 | unsigned long quirks; |
8bf769eb JH |
139 | }; |
140 | ||
1da177e4 LT |
141 | struct pl2303_private { |
142 | spinlock_t lock; | |
1da177e4 LT |
143 | u8 line_control; |
144 | u8 line_status; | |
623c8263 JH |
145 | |
146 | u8 line_settings[7]; | |
1da177e4 LT |
147 | }; |
148 | ||
362eb026 JH |
149 | static int pl2303_vendor_read(struct usb_serial *serial, u16 value, |
150 | unsigned char buf[1]) | |
eb44da0b | 151 | { |
362eb026 | 152 | struct device *dev = &serial->interface->dev; |
ccfe8188 JH |
153 | int res; |
154 | ||
155 | res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), | |
eb44da0b | 156 | VENDOR_READ_REQUEST, VENDOR_READ_REQUEST_TYPE, |
362eb026 JH |
157 | value, 0, buf, 1, 100); |
158 | if (res != 1) { | |
159 | dev_err(dev, "%s - failed to read [%04x]: %d\n", __func__, | |
160 | value, res); | |
161 | if (res >= 0) | |
162 | res = -EIO; | |
163 | ||
164 | return res; | |
165 | } | |
ccfe8188 | 166 | |
362eb026 | 167 | dev_dbg(dev, "%s - [%04x] = %02x\n", __func__, value, buf[0]); |
ccfe8188 | 168 | |
362eb026 | 169 | return 0; |
eb44da0b SS |
170 | } |
171 | ||
362eb026 | 172 | static int pl2303_vendor_write(struct usb_serial *serial, u16 value, u16 index) |
eb44da0b | 173 | { |
362eb026 | 174 | struct device *dev = &serial->interface->dev; |
ccfe8188 JH |
175 | int res; |
176 | ||
362eb026 JH |
177 | dev_dbg(dev, "%s - [%04x] = %02x\n", __func__, value, index); |
178 | ||
ccfe8188 | 179 | res = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), |
eb44da0b SS |
180 | VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE, |
181 | value, index, NULL, 0, 100); | |
362eb026 JH |
182 | if (res) { |
183 | dev_err(dev, "%s - failed to write [%04x]: %d\n", __func__, | |
184 | value, res); | |
185 | return res; | |
186 | } | |
ccfe8188 | 187 | |
362eb026 | 188 | return 0; |
eb44da0b SS |
189 | } |
190 | ||
228e4105 JH |
191 | static int pl2303_probe(struct usb_serial *serial, |
192 | const struct usb_device_id *id) | |
193 | { | |
194 | usb_set_serial_data(serial, (void *)id->driver_info); | |
195 | ||
196 | return 0; | |
197 | } | |
198 | ||
372db8a7 | 199 | static int pl2303_startup(struct usb_serial *serial) |
1da177e4 | 200 | { |
8bf769eb | 201 | struct pl2303_serial_private *spriv; |
7f966ac7 | 202 | enum pl2303_type type = TYPE_01; |
3e152505 | 203 | unsigned char *buf; |
8bf769eb JH |
204 | |
205 | spriv = kzalloc(sizeof(*spriv), GFP_KERNEL); | |
206 | if (!spriv) | |
207 | return -ENOMEM; | |
1da177e4 | 208 | |
362eb026 | 209 | buf = kmalloc(1, GFP_KERNEL); |
8bf769eb JH |
210 | if (!buf) { |
211 | kfree(spriv); | |
3e152505 | 212 | return -ENOMEM; |
8bf769eb | 213 | } |
3e152505 | 214 | |
b52e1113 | 215 | if (serial->dev->descriptor.bDeviceClass == 0x02) |
7f966ac7 | 216 | type = TYPE_01; /* type 0 */ |
b52e1113 | 217 | else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) |
7f966ac7 | 218 | type = TYPE_HX; |
281393ad | 219 | else if (serial->dev->descriptor.bDeviceClass == 0x00) |
7f966ac7 | 220 | type = TYPE_01; /* type 1 */ |
281393ad | 221 | else if (serial->dev->descriptor.bDeviceClass == 0xFF) |
7f966ac7 | 222 | type = TYPE_01; /* type 1 */ |
b52e1113 | 223 | dev_dbg(&serial->interface->dev, "device type: %d\n", type); |
1da177e4 | 224 | |
8bf769eb | 225 | spriv->type = type; |
228e4105 JH |
226 | spriv->quirks = (unsigned long)usb_get_serial_data(serial); |
227 | ||
8bf769eb | 228 | usb_set_serial_data(serial, spriv); |
3e152505 | 229 | |
362eb026 JH |
230 | pl2303_vendor_read(serial, 0x8484, buf); |
231 | pl2303_vendor_write(serial, 0x0404, 0); | |
232 | pl2303_vendor_read(serial, 0x8484, buf); | |
233 | pl2303_vendor_read(serial, 0x8383, buf); | |
234 | pl2303_vendor_read(serial, 0x8484, buf); | |
235 | pl2303_vendor_write(serial, 0x0404, 1); | |
236 | pl2303_vendor_read(serial, 0x8484, buf); | |
237 | pl2303_vendor_read(serial, 0x8383, buf); | |
238 | pl2303_vendor_write(serial, 0, 1); | |
239 | pl2303_vendor_write(serial, 1, 0); | |
7f966ac7 | 240 | if (type == TYPE_01) |
362eb026 | 241 | pl2303_vendor_write(serial, 2, 0x24); |
7f966ac7 JH |
242 | else |
243 | pl2303_vendor_write(serial, 2, 0x44); | |
3e152505 SS |
244 | |
245 | kfree(buf); | |
ccfe8188 | 246 | |
1da177e4 | 247 | return 0; |
8bf769eb | 248 | } |
1da177e4 | 249 | |
8bf769eb JH |
250 | static void pl2303_release(struct usb_serial *serial) |
251 | { | |
ccfe8188 | 252 | struct pl2303_serial_private *spriv = usb_get_serial_data(serial); |
8bf769eb | 253 | |
8bf769eb JH |
254 | kfree(spriv); |
255 | } | |
256 | ||
257 | static int pl2303_port_probe(struct usb_serial_port *port) | |
258 | { | |
259 | struct pl2303_private *priv; | |
260 | ||
261 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
262 | if (!priv) | |
263 | return -ENOMEM; | |
264 | ||
265 | spin_lock_init(&priv->lock); | |
8bf769eb JH |
266 | |
267 | usb_set_serial_port_data(port, priv); | |
268 | ||
d7be6221 JH |
269 | port->port.drain_delay = 256; |
270 | ||
8bf769eb JH |
271 | return 0; |
272 | } | |
273 | ||
274 | static int pl2303_port_remove(struct usb_serial_port *port) | |
275 | { | |
ccfe8188 | 276 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
8bf769eb | 277 | |
8bf769eb JH |
278 | kfree(priv); |
279 | ||
280 | return 0; | |
1da177e4 LT |
281 | } |
282 | ||
f45d0a5a | 283 | static int pl2303_set_control_lines(struct usb_serial_port *port, u8 value) |
1da177e4 | 284 | { |
f45d0a5a | 285 | struct usb_device *dev = port->serial->dev; |
1da177e4 | 286 | int retval; |
3a0f43e9 | 287 | |
a6ec8245 JH |
288 | dev_dbg(&port->dev, "%s - %02x\n", __func__, value); |
289 | ||
372db8a7 TG |
290 | retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), |
291 | SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE, | |
292 | value, 0, NULL, 0, 100); | |
a6ec8245 JH |
293 | if (retval) |
294 | dev_err(&port->dev, "%s - failed: %d\n", __func__, retval); | |
ccfe8188 | 295 | |
1da177e4 LT |
296 | return retval; |
297 | } | |
298 | ||
15e7cead JH |
299 | static void pl2303_encode_baudrate(struct tty_struct *tty, |
300 | struct usb_serial_port *port, | |
301 | u8 buf[4]) | |
1da177e4 | 302 | { |
f84ee3b2 | 303 | const speed_t baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, |
7e12a6fc GKH |
304 | 4800, 7200, 9600, 14400, 19200, 28800, 38400, |
305 | 57600, 115200, 230400, 460800, 500000, 614400, | |
306 | 921600, 1228800, 2457600, 3000000, 6000000 }; | |
307 | ||
692ed4dd GKH |
308 | struct usb_serial *serial = port->serial; |
309 | struct pl2303_serial_private *spriv = usb_get_serial_data(serial); | |
f84ee3b2 | 310 | speed_t baud; |
7e12a6fc | 311 | int i; |
1da177e4 | 312 | |
7e12a6fc GKH |
313 | /* |
314 | * NOTE: Only the values defined in baud_sup are supported! | |
315 | * => if unsupported values are set, the PL2303 seems to use | |
316 | * 9600 baud (at least my PL2303X always does) | |
317 | */ | |
95da310e | 318 | baud = tty_get_baud_rate(tty); |
f84ee3b2 | 319 | dev_dbg(&port->dev, "baud requested = %u\n", baud); |
b2d6d98f JH |
320 | if (!baud) |
321 | return; | |
692ed4dd | 322 | |
7e12a6fc GKH |
323 | /* Set baudrate to nearest supported value */ |
324 | for (i = 0; i < ARRAY_SIZE(baud_sup); ++i) { | |
325 | if (baud_sup[i] > baud) | |
326 | break; | |
327 | } | |
692ed4dd | 328 | |
7e12a6fc GKH |
329 | if (i == ARRAY_SIZE(baud_sup)) |
330 | baud = baud_sup[i - 1]; | |
331 | else if (i > 0 && (baud_sup[i] - baud) > (baud - baud_sup[i - 1])) | |
332 | baud = baud_sup[i - 1]; | |
333 | else | |
334 | baud = baud_sup[i]; | |
692ed4dd | 335 | |
7e12a6fc | 336 | /* type_0, type_1 only support up to 1228800 baud */ |
7f966ac7 | 337 | if (spriv->type == TYPE_01) |
f84ee3b2 | 338 | baud = min_t(speed_t, baud, 1228800); |
692ed4dd | 339 | |
54dc5792 | 340 | if (baud <= 115200) { |
692ed4dd GKH |
341 | put_unaligned_le32(baud, buf); |
342 | } else { | |
343 | /* | |
1796a228 GKH |
344 | * Apparently the formula for higher speeds is: |
345 | * baudrate = 12M * 32 / (2^buf[1]) / buf[0] | |
692ed4dd | 346 | */ |
1796a228 GKH |
347 | unsigned tmp = 12000000 * 32 / baud; |
348 | buf[3] = 0x80; | |
692ed4dd | 349 | buf[2] = 0; |
1796a228 GKH |
350 | buf[1] = (tmp >= 256); |
351 | while (tmp >= 256) { | |
352 | tmp >>= 2; | |
353 | buf[1] <<= 1; | |
354 | } | |
355 | buf[0] = tmp; | |
692ed4dd GKH |
356 | } |
357 | ||
15e7cead | 358 | /* Save resulting baud rate */ |
b2d6d98f | 359 | tty_encode_baud_rate(tty, baud, baud); |
f84ee3b2 | 360 | dev_dbg(&port->dev, "baud set = %u\n", baud); |
15e7cead JH |
361 | } |
362 | ||
383d19c5 JH |
363 | static int pl2303_get_line_request(struct usb_serial_port *port, |
364 | unsigned char buf[7]) | |
365 | { | |
366 | struct usb_device *udev = port->serial->dev; | |
367 | int ret; | |
368 | ||
369 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), | |
370 | GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, | |
371 | 0, 0, buf, 7, 100); | |
372 | if (ret != 7) { | |
373 | dev_err(&port->dev, "%s - failed: %d\n", __func__, ret); | |
374 | ||
375 | if (ret > 0) | |
376 | ret = -EIO; | |
377 | ||
378 | return ret; | |
379 | } | |
380 | ||
381 | dev_dbg(&port->dev, "%s - %7ph\n", __func__, buf); | |
382 | ||
383 | return 0; | |
384 | } | |
385 | ||
386 | static int pl2303_set_line_request(struct usb_serial_port *port, | |
387 | unsigned char buf[7]) | |
388 | { | |
389 | struct usb_device *udev = port->serial->dev; | |
390 | int ret; | |
391 | ||
392 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), | |
393 | SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE, | |
394 | 0, 0, buf, 7, 100); | |
395 | if (ret != 7) { | |
396 | dev_err(&port->dev, "%s - failed: %d\n", __func__, ret); | |
397 | ||
398 | if (ret > 0) | |
399 | ret = -EIO; | |
400 | ||
401 | return ret; | |
402 | } | |
403 | ||
404 | dev_dbg(&port->dev, "%s - %7ph\n", __func__, buf); | |
405 | ||
406 | return 0; | |
407 | } | |
408 | ||
15e7cead JH |
409 | static void pl2303_set_termios(struct tty_struct *tty, |
410 | struct usb_serial_port *port, struct ktermios *old_termios) | |
411 | { | |
412 | struct usb_serial *serial = port->serial; | |
413 | struct pl2303_serial_private *spriv = usb_get_serial_data(serial); | |
414 | struct pl2303_private *priv = usb_get_serial_port_data(port); | |
415 | unsigned long flags; | |
15e7cead | 416 | unsigned char *buf; |
383d19c5 | 417 | int ret; |
15e7cead JH |
418 | u8 control; |
419 | ||
15e7cead JH |
420 | if (old_termios && !tty_termios_hw_change(&tty->termios, old_termios)) |
421 | return; | |
422 | ||
15e7cead JH |
423 | buf = kzalloc(7, GFP_KERNEL); |
424 | if (!buf) { | |
15e7cead JH |
425 | /* Report back no change occurred */ |
426 | if (old_termios) | |
427 | tty->termios = *old_termios; | |
428 | return; | |
429 | } | |
430 | ||
383d19c5 | 431 | pl2303_get_line_request(port, buf); |
15e7cead | 432 | |
a3132499 CL |
433 | switch (C_CSIZE(tty)) { |
434 | case CS5: | |
435 | buf[6] = 5; | |
436 | break; | |
437 | case CS6: | |
438 | buf[6] = 6; | |
439 | break; | |
440 | case CS7: | |
441 | buf[6] = 7; | |
442 | break; | |
443 | default: | |
444 | case CS8: | |
445 | buf[6] = 8; | |
15e7cead | 446 | } |
a3132499 | 447 | dev_dbg(&port->dev, "data bits = %d\n", buf[6]); |
15e7cead | 448 | |
692ed4dd GKH |
449 | /* For reference buf[0]:buf[3] baud rate value */ |
450 | pl2303_encode_baudrate(tty, port, &buf[0]); | |
15e7cead | 451 | |
1da177e4 LT |
452 | /* For reference buf[4]=0 is 1 stop bits */ |
453 | /* For reference buf[4]=1 is 1.5 stop bits */ | |
454 | /* For reference buf[4]=2 is 2 stop bits */ | |
87265b45 JH |
455 | if (C_CSTOPB(tty)) { |
456 | /* | |
457 | * NOTE: Comply with "real" UARTs / RS232: | |
29cf1b72 FS |
458 | * use 1.5 instead of 2 stop bits with 5 data bits |
459 | */ | |
87265b45 | 460 | if (C_CSIZE(tty) == CS5) { |
29cf1b72 | 461 | buf[4] = 1; |
d8789b2b | 462 | dev_dbg(&port->dev, "stop bits = 1.5\n"); |
29cf1b72 FS |
463 | } else { |
464 | buf[4] = 2; | |
d8789b2b | 465 | dev_dbg(&port->dev, "stop bits = 2\n"); |
29cf1b72 | 466 | } |
1da177e4 LT |
467 | } else { |
468 | buf[4] = 0; | |
d8789b2b | 469 | dev_dbg(&port->dev, "stop bits = 1\n"); |
1da177e4 LT |
470 | } |
471 | ||
87265b45 | 472 | if (C_PARENB(tty)) { |
1da177e4 LT |
473 | /* For reference buf[5]=0 is none parity */ |
474 | /* For reference buf[5]=1 is odd parity */ | |
475 | /* For reference buf[5]=2 is even parity */ | |
476 | /* For reference buf[5]=3 is mark parity */ | |
477 | /* For reference buf[5]=4 is space parity */ | |
87265b45 JH |
478 | if (C_PARODD(tty)) { |
479 | if (tty->termios.c_cflag & CMSPAR) { | |
6dd81b45 | 480 | buf[5] = 3; |
d8789b2b | 481 | dev_dbg(&port->dev, "parity = mark\n"); |
6dd81b45 FS |
482 | } else { |
483 | buf[5] = 1; | |
d8789b2b | 484 | dev_dbg(&port->dev, "parity = odd\n"); |
6dd81b45 | 485 | } |
1da177e4 | 486 | } else { |
87265b45 | 487 | if (tty->termios.c_cflag & CMSPAR) { |
6dd81b45 | 488 | buf[5] = 4; |
d8789b2b | 489 | dev_dbg(&port->dev, "parity = space\n"); |
6dd81b45 FS |
490 | } else { |
491 | buf[5] = 2; | |
d8789b2b | 492 | dev_dbg(&port->dev, "parity = even\n"); |
6dd81b45 | 493 | } |
1da177e4 LT |
494 | } |
495 | } else { | |
496 | buf[5] = 0; | |
d8789b2b | 497 | dev_dbg(&port->dev, "parity = none\n"); |
1da177e4 LT |
498 | } |
499 | ||
623c8263 JH |
500 | /* |
501 | * Some PL2303 are known to lose bytes if you change serial settings | |
502 | * even to the same values as before. Thus we actually need to filter | |
503 | * in this specific case. | |
504 | * | |
505 | * Note that the tty_termios_hw_change check above is not sufficient | |
506 | * as a previously requested baud rate may differ from the one | |
507 | * actually used (and stored in old_termios). | |
508 | * | |
509 | * NOTE: No additional locking needed for line_settings as it is | |
510 | * only used in set_termios, which is serialised against itself. | |
511 | */ | |
512 | if (!old_termios || memcmp(buf, priv->line_settings, 7)) { | |
383d19c5 JH |
513 | ret = pl2303_set_line_request(port, buf); |
514 | if (!ret) | |
623c8263 JH |
515 | memcpy(priv->line_settings, buf, 7); |
516 | } | |
1da177e4 LT |
517 | |
518 | /* change control lines if we are switching to or from B0 */ | |
519 | spin_lock_irqsave(&priv->lock, flags); | |
520 | control = priv->line_control; | |
87265b45 | 521 | if (C_BAUD(tty) == B0) |
1da177e4 | 522 | priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); |
2d8f4447 | 523 | else if (old_termios && (old_termios->c_cflag & CBAUD) == B0) |
1da177e4 LT |
524 | priv->line_control |= (CONTROL_DTR | CONTROL_RTS); |
525 | if (control != priv->line_control) { | |
526 | control = priv->line_control; | |
527 | spin_unlock_irqrestore(&priv->lock, flags); | |
f45d0a5a | 528 | pl2303_set_control_lines(port, control); |
1da177e4 LT |
529 | } else { |
530 | spin_unlock_irqrestore(&priv->lock, flags); | |
531 | } | |
372db8a7 | 532 | |
87265b45 | 533 | if (C_CRTSCTS(tty)) { |
7f966ac7 | 534 | if (spriv->type == TYPE_01) |
362eb026 | 535 | pl2303_vendor_write(serial, 0x0, 0x41); |
7f966ac7 JH |
536 | else |
537 | pl2303_vendor_write(serial, 0x0, 0x61); | |
715f9527 | 538 | } else { |
362eb026 | 539 | pl2303_vendor_write(serial, 0x0, 0x0); |
1da177e4 | 540 | } |
572d3138 TG |
541 | |
542 | kfree(buf); | |
543 | } | |
544 | ||
335f8514 AC |
545 | static void pl2303_dtr_rts(struct usb_serial_port *port, int on) |
546 | { | |
547 | struct pl2303_private *priv = usb_get_serial_port_data(port); | |
548 | unsigned long flags; | |
549 | u8 control; | |
550 | ||
551 | spin_lock_irqsave(&priv->lock, flags); | |
335f8514 AC |
552 | if (on) |
553 | priv->line_control |= (CONTROL_DTR | CONTROL_RTS); | |
554 | else | |
555 | priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); | |
556 | control = priv->line_control; | |
557 | spin_unlock_irqrestore(&priv->lock, flags); | |
ccfe8188 | 558 | |
f45d0a5a | 559 | pl2303_set_control_lines(port, control); |
335f8514 AC |
560 | } |
561 | ||
562 | static void pl2303_close(struct usb_serial_port *port) | |
572d3138 | 563 | { |
8b0127b2 | 564 | usb_serial_generic_close(port); |
572d3138 | 565 | usb_kill_urb(port->interrupt_in_urb); |
1da177e4 LT |
566 | } |
567 | ||
a509a7e4 | 568 | static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) |
1da177e4 | 569 | { |
1da177e4 | 570 | struct usb_serial *serial = port->serial; |
8bf769eb | 571 | struct pl2303_serial_private *spriv = usb_get_serial_data(serial); |
1da177e4 LT |
572 | int result; |
573 | ||
7f966ac7 | 574 | if (spriv->type == TYPE_01) { |
1694899f D |
575 | usb_clear_halt(serial->dev, port->write_urb->pipe); |
576 | usb_clear_halt(serial->dev, port->read_urb->pipe); | |
3e152505 | 577 | } else { |
1da177e4 | 578 | /* reset upstream data pipes */ |
362eb026 JH |
579 | pl2303_vendor_write(serial, 8, 0); |
580 | pl2303_vendor_write(serial, 9, 0); | |
1da177e4 LT |
581 | } |
582 | ||
1da177e4 | 583 | /* Setup termios */ |
95da310e | 584 | if (tty) |
2d8f4447 | 585 | pl2303_set_termios(tty, port, NULL); |
1da177e4 | 586 | |
372db8a7 | 587 | result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); |
1da177e4 | 588 | if (result) { |
ccfe8188 JH |
589 | dev_err(&port->dev, "failed to submit interrupt urb: %d\n", |
590 | result); | |
db6e9186 | 591 | return result; |
1da177e4 | 592 | } |
d4691c3f | 593 | |
f5230a53 | 594 | result = usb_serial_generic_open(tty, port); |
d4691c3f JH |
595 | if (result) { |
596 | usb_kill_urb(port->interrupt_in_urb); | |
597 | return result; | |
598 | } | |
599 | ||
1da177e4 LT |
600 | return 0; |
601 | } | |
602 | ||
20b9d177 | 603 | static int pl2303_tiocmset(struct tty_struct *tty, |
372db8a7 | 604 | unsigned int set, unsigned int clear) |
1da177e4 | 605 | { |
95da310e | 606 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
607 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
608 | unsigned long flags; | |
609 | u8 control; | |
6f1efd6c | 610 | int ret; |
6fdd8e8e | 611 | |
372db8a7 | 612 | spin_lock_irqsave(&priv->lock, flags); |
1da177e4 LT |
613 | if (set & TIOCM_RTS) |
614 | priv->line_control |= CONTROL_RTS; | |
615 | if (set & TIOCM_DTR) | |
616 | priv->line_control |= CONTROL_DTR; | |
617 | if (clear & TIOCM_RTS) | |
618 | priv->line_control &= ~CONTROL_RTS; | |
619 | if (clear & TIOCM_DTR) | |
620 | priv->line_control &= ~CONTROL_DTR; | |
621 | control = priv->line_control; | |
372db8a7 | 622 | spin_unlock_irqrestore(&priv->lock, flags); |
1da177e4 | 623 | |
5ddbb26b JH |
624 | ret = pl2303_set_control_lines(port, control); |
625 | if (ret) | |
626 | return usb_translate_errors(ret); | |
6f1efd6c | 627 | |
5ddbb26b | 628 | return 0; |
1da177e4 LT |
629 | } |
630 | ||
60b33c13 | 631 | static int pl2303_tiocmget(struct tty_struct *tty) |
1da177e4 | 632 | { |
95da310e | 633 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
634 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
635 | unsigned long flags; | |
636 | unsigned int mcr; | |
637 | unsigned int status; | |
638 | unsigned int result; | |
639 | ||
372db8a7 | 640 | spin_lock_irqsave(&priv->lock, flags); |
1da177e4 LT |
641 | mcr = priv->line_control; |
642 | status = priv->line_status; | |
372db8a7 | 643 | spin_unlock_irqrestore(&priv->lock, flags); |
1da177e4 LT |
644 | |
645 | result = ((mcr & CONTROL_DTR) ? TIOCM_DTR : 0) | |
646 | | ((mcr & CONTROL_RTS) ? TIOCM_RTS : 0) | |
647 | | ((status & UART_CTS) ? TIOCM_CTS : 0) | |
648 | | ((status & UART_DSR) ? TIOCM_DSR : 0) | |
649 | | ((status & UART_RING) ? TIOCM_RI : 0) | |
650 | | ((status & UART_DCD) ? TIOCM_CD : 0); | |
651 | ||
d8789b2b | 652 | dev_dbg(&port->dev, "%s - result = %x\n", __func__, result); |
1da177e4 LT |
653 | |
654 | return result; | |
655 | } | |
656 | ||
335f8514 AC |
657 | static int pl2303_carrier_raised(struct usb_serial_port *port) |
658 | { | |
659 | struct pl2303_private *priv = usb_get_serial_port_data(port); | |
ccfe8188 | 660 | |
335f8514 AC |
661 | if (priv->line_status & UART_DCD) |
662 | return 1; | |
ccfe8188 | 663 | |
335f8514 AC |
664 | return 0; |
665 | } | |
666 | ||
824d11be | 667 | static int pl2303_tiocmiwait(struct tty_struct *tty, unsigned long arg) |
1da177e4 | 668 | { |
824d11be | 669 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
670 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
671 | unsigned long flags; | |
672 | unsigned int prevstatus; | |
673 | unsigned int status; | |
674 | unsigned int changed; | |
675 | ||
372db8a7 | 676 | spin_lock_irqsave(&priv->lock, flags); |
1da177e4 | 677 | prevstatus = priv->line_status; |
372db8a7 | 678 | spin_unlock_irqrestore(&priv->lock, flags); |
1da177e4 LT |
679 | |
680 | while (1) { | |
6d0cad65 | 681 | interruptible_sleep_on(&port->port.delta_msr_wait); |
1da177e4 LT |
682 | /* see if a signal did it */ |
683 | if (signal_pending(current)) | |
684 | return -ERESTARTSYS; | |
372db8a7 | 685 | |
40509ca9 JH |
686 | if (port->serial->disconnected) |
687 | return -EIO; | |
688 | ||
372db8a7 | 689 | spin_lock_irqsave(&priv->lock, flags); |
1da177e4 | 690 | status = priv->line_status; |
372db8a7 TG |
691 | spin_unlock_irqrestore(&priv->lock, flags); |
692 | ||
3a0f43e9 | 693 | changed = prevstatus ^ status; |
372db8a7 | 694 | |
1da177e4 LT |
695 | if (((arg & TIOCM_RNG) && (changed & UART_RING)) || |
696 | ((arg & TIOCM_DSR) && (changed & UART_DSR)) || | |
697 | ((arg & TIOCM_CD) && (changed & UART_DCD)) || | |
3a0f43e9 | 698 | ((arg & TIOCM_CTS) && (changed & UART_CTS))) { |
1da177e4 LT |
699 | return 0; |
700 | } | |
701 | prevstatus = status; | |
702 | } | |
703 | /* NOTREACHED */ | |
704 | return 0; | |
705 | } | |
706 | ||
00a0d0d6 | 707 | static int pl2303_ioctl(struct tty_struct *tty, |
372db8a7 | 708 | unsigned int cmd, unsigned long arg) |
1da177e4 | 709 | { |
67b9946d | 710 | struct serial_struct ser; |
95da310e | 711 | struct usb_serial_port *port = tty->driver_data; |
d8789b2b | 712 | |
1da177e4 | 713 | switch (cmd) { |
67b9946d JT |
714 | case TIOCGSERIAL: |
715 | memset(&ser, 0, sizeof ser); | |
716 | ser.type = PORT_16654; | |
e5b1e206 | 717 | ser.line = port->minor; |
1143832e | 718 | ser.port = port->port_number; |
67b9946d JT |
719 | ser.baud_base = 460800; |
720 | ||
721 | if (copy_to_user((void __user *)arg, &ser, sizeof ser)) | |
722 | return -EFAULT; | |
723 | ||
724 | return 0; | |
3a0f43e9 | 725 | default: |
3a0f43e9 | 726 | break; |
1da177e4 | 727 | } |
ccfe8188 | 728 | |
1da177e4 LT |
729 | return -ENOIOCTLCMD; |
730 | } | |
731 | ||
95da310e | 732 | static void pl2303_break_ctl(struct tty_struct *tty, int break_state) |
1da177e4 | 733 | { |
95da310e | 734 | struct usb_serial_port *port = tty->driver_data; |
1da177e4 LT |
735 | struct usb_serial *serial = port->serial; |
736 | u16 state; | |
737 | int result; | |
738 | ||
1da177e4 LT |
739 | if (break_state == 0) |
740 | state = BREAK_OFF; | |
741 | else | |
742 | state = BREAK_ON; | |
ccfe8188 | 743 | |
d8789b2b | 744 | dev_dbg(&port->dev, "%s - turning break %s\n", __func__, |
3a0f43e9 | 745 | state == BREAK_OFF ? "off" : "on"); |
1da177e4 | 746 | |
372db8a7 TG |
747 | result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), |
748 | BREAK_REQUEST, BREAK_REQUEST_TYPE, state, | |
749 | 0, NULL, 0, 100); | |
1da177e4 | 750 | if (result) |
d8789b2b | 751 | dev_err(&port->dev, "error sending break = %d\n", result); |
1da177e4 LT |
752 | } |
753 | ||
97bb13ec FL |
754 | static void pl2303_update_line_status(struct usb_serial_port *port, |
755 | unsigned char *data, | |
756 | unsigned int actual_length) | |
757 | { | |
228e4105 JH |
758 | struct usb_serial *serial = port->serial; |
759 | struct pl2303_serial_private *spriv = usb_get_serial_data(serial); | |
97bb13ec | 760 | struct pl2303_private *priv = usb_get_serial_port_data(port); |
d14fc1a7 | 761 | struct tty_struct *tty; |
97bb13ec | 762 | unsigned long flags; |
228e4105 | 763 | unsigned int status_idx = UART_STATE_INDEX; |
d14fc1a7 | 764 | u8 prev_line_status; |
97bb13ec | 765 | |
228e4105 JH |
766 | if (spriv->quirks & PL2303_QUIRK_UART_STATE_IDX0) |
767 | status_idx = 0; | |
97bb13ec | 768 | |
228e4105 | 769 | if (actual_length < status_idx + 1) |
a009b75a | 770 | return; |
97bb13ec | 771 | |
3a0f43e9 | 772 | /* Save off the uart status for others to look at */ |
97bb13ec | 773 | spin_lock_irqsave(&priv->lock, flags); |
d14fc1a7 | 774 | prev_line_status = priv->line_status; |
97bb13ec FL |
775 | priv->line_status = data[status_idx]; |
776 | spin_unlock_irqrestore(&priv->lock, flags); | |
ccfe8188 | 777 | |
430eb0d2 JW |
778 | if (priv->line_status & UART_BREAK_ERROR) |
779 | usb_serial_handle_break(port); | |
ccfe8188 | 780 | |
6d0cad65 | 781 | wake_up_interruptible(&port->port.delta_msr_wait); |
d14fc1a7 LP |
782 | |
783 | tty = tty_port_tty_get(&port->port); | |
784 | if (!tty) | |
785 | return; | |
786 | if ((priv->line_status ^ prev_line_status) & UART_DCD) | |
787 | usb_serial_handle_dcd_change(port, tty, | |
788 | priv->line_status & UART_DCD); | |
789 | tty_kref_put(tty); | |
97bb13ec | 790 | } |
1da177e4 | 791 | |
7d12e780 | 792 | static void pl2303_read_int_callback(struct urb *urb) |
1da177e4 | 793 | { |
cdc97792 | 794 | struct usb_serial_port *port = urb->context; |
1da177e4 | 795 | unsigned char *data = urb->transfer_buffer; |
97bb13ec | 796 | unsigned int actual_length = urb->actual_length; |
461d696a GKH |
797 | int status = urb->status; |
798 | int retval; | |
1da177e4 | 799 | |
461d696a | 800 | switch (status) { |
1da177e4 LT |
801 | case 0: |
802 | /* success */ | |
803 | break; | |
804 | case -ECONNRESET: | |
805 | case -ENOENT: | |
806 | case -ESHUTDOWN: | |
807 | /* this urb is terminated, clean up */ | |
d8789b2b GKH |
808 | dev_dbg(&port->dev, "%s - urb shutting down with status: %d\n", |
809 | __func__, status); | |
1da177e4 LT |
810 | return; |
811 | default: | |
d8789b2b GKH |
812 | dev_dbg(&port->dev, "%s - nonzero urb status received: %d\n", |
813 | __func__, status); | |
1da177e4 LT |
814 | goto exit; |
815 | } | |
816 | ||
59d33f2f | 817 | usb_serial_debug_data(&port->dev, __func__, |
372db8a7 TG |
818 | urb->actual_length, urb->transfer_buffer); |
819 | ||
97bb13ec | 820 | pl2303_update_line_status(port, data, actual_length); |
1da177e4 | 821 | |
1da177e4 | 822 | exit: |
461d696a | 823 | retval = usb_submit_urb(urb, GFP_ATOMIC); |
ccfe8188 | 824 | if (retval) { |
d8789b2b | 825 | dev_err(&port->dev, |
372db8a7 | 826 | "%s - usb_submit_urb failed with result %d\n", |
441b62c1 | 827 | __func__, retval); |
ccfe8188 | 828 | } |
1da177e4 LT |
829 | } |
830 | ||
f08e07ac | 831 | static void pl2303_process_read_urb(struct urb *urb) |
d4fc4a7b | 832 | { |
f08e07ac JH |
833 | struct usb_serial_port *port = urb->context; |
834 | struct pl2303_private *priv = usb_get_serial_port_data(port); | |
d4fc4a7b | 835 | unsigned char *data = urb->transfer_buffer; |
d4fc4a7b | 836 | char tty_flag = TTY_NORMAL; |
f08e07ac JH |
837 | unsigned long flags; |
838 | u8 line_status; | |
839 | int i; | |
840 | ||
841 | /* update line status */ | |
842 | spin_lock_irqsave(&priv->lock, flags); | |
843 | line_status = priv->line_status; | |
844 | priv->line_status &= ~UART_STATE_TRANSIENT_MASK; | |
845 | spin_unlock_irqrestore(&priv->lock, flags); | |
f08e07ac JH |
846 | |
847 | if (!urb->actual_length) | |
848 | return; | |
849 | ||
ccfe8188 JH |
850 | /* |
851 | * Break takes precedence over parity, which takes precedence over | |
852 | * framing errors. | |
853 | */ | |
d4fc4a7b AC |
854 | if (line_status & UART_BREAK_ERROR) |
855 | tty_flag = TTY_BREAK; | |
856 | else if (line_status & UART_PARITY_ERROR) | |
857 | tty_flag = TTY_PARITY; | |
858 | else if (line_status & UART_FRAME_ERROR) | |
859 | tty_flag = TTY_FRAME; | |
d4fc4a7b | 860 | |
3ba19fe3 JH |
861 | if (tty_flag != TTY_NORMAL) |
862 | dev_dbg(&port->dev, "%s - tty_flag = %d\n", __func__, | |
863 | tty_flag); | |
d4fc4a7b AC |
864 | /* overrun is special, not associated with a char */ |
865 | if (line_status & UART_OVERRUN_ERROR) | |
92a19f9c | 866 | tty_insert_flip_char(&port->port, 0, TTY_OVERRUN); |
9388e2e7 | 867 | |
d45cc8df | 868 | if (port->port.console && port->sysrq) { |
d4fc4a7b | 869 | for (i = 0; i < urb->actual_length; ++i) |
6ee9f4b4 | 870 | if (!usb_serial_handle_sysrq_char(port, data[i])) |
92a19f9c JS |
871 | tty_insert_flip_char(&port->port, data[i], |
872 | tty_flag); | |
d45cc8df | 873 | } else { |
2f693357 | 874 | tty_insert_flip_string_fixed_flag(&port->port, data, tty_flag, |
d45cc8df | 875 | urb->actual_length); |
9388e2e7 | 876 | } |
1da177e4 | 877 | |
2e124b4a | 878 | tty_flip_buffer_push(&port->port); |
1da177e4 LT |
879 | } |
880 | ||
572d3138 TG |
881 | static struct usb_serial_driver pl2303_device = { |
882 | .driver = { | |
883 | .owner = THIS_MODULE, | |
884 | .name = "pl2303", | |
885 | }, | |
886 | .id_table = id_table, | |
572d3138 | 887 | .num_ports = 1, |
7919c2fd | 888 | .bulk_in_size = 256, |
3efeaff6 | 889 | .bulk_out_size = 256, |
572d3138 TG |
890 | .open = pl2303_open, |
891 | .close = pl2303_close, | |
ccfe8188 | 892 | .dtr_rts = pl2303_dtr_rts, |
335f8514 | 893 | .carrier_raised = pl2303_carrier_raised, |
572d3138 TG |
894 | .ioctl = pl2303_ioctl, |
895 | .break_ctl = pl2303_break_ctl, | |
896 | .set_termios = pl2303_set_termios, | |
897 | .tiocmget = pl2303_tiocmget, | |
898 | .tiocmset = pl2303_tiocmset, | |
824d11be | 899 | .tiocmiwait = pl2303_tiocmiwait, |
f08e07ac | 900 | .process_read_urb = pl2303_process_read_urb, |
572d3138 | 901 | .read_int_callback = pl2303_read_int_callback, |
228e4105 | 902 | .probe = pl2303_probe, |
572d3138 | 903 | .attach = pl2303_startup, |
f9c99bb8 | 904 | .release = pl2303_release, |
8bf769eb JH |
905 | .port_probe = pl2303_port_probe, |
906 | .port_remove = pl2303_port_remove, | |
572d3138 | 907 | }; |
1da177e4 | 908 | |
f667ddad AS |
909 | static struct usb_serial_driver * const serial_drivers[] = { |
910 | &pl2303_device, NULL | |
911 | }; | |
912 | ||
68e24113 | 913 | module_usb_serial_driver(serial_drivers, id_table); |
1da177e4 | 914 | |
ccfe8188 | 915 | MODULE_DESCRIPTION("Prolific PL2303 USB to serial adaptor driver"); |
1da177e4 | 916 | MODULE_LICENSE("GPL"); |