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Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
[linux-btrfs-devel.git] / drivers / media / dvb / dvb-usb / dib0700_core.c
blob5eb91b4f8fd08ff98c38dc9e4f90e77d086879a6
1 /* Linux driver for devices based on the DiBcom DiB0700 USB bridge
2 *
3 * This program is free software; you can redistribute it and/or modify it
4 * under the terms of the GNU General Public License as published by the Free
5 * Software Foundation, version 2.
6 *
7 * Copyright (C) 2005-6 DiBcom, SA
8 */
9 #include "dib0700.h"
10
11 /* debug */
12 int dvb_usb_dib0700_debug;
13 module_param_named(debug,dvb_usb_dib0700_debug, int, 0644);
14 MODULE_PARM_DESC(debug, "set debugging level (1=info,2=fw,4=fwdata,8=data (or-able))." DVB_USB_DEBUG_STATUS);
15
16 static int nb_packet_buffer_size = 21;
17 module_param(nb_packet_buffer_size, int, 0644);
18 MODULE_PARM_DESC(nb_packet_buffer_size,
19 "Set the dib0700 driver data buffer size. This parameter "
20 "corresponds to the number of TS packets. The actual size of "
21 "the data buffer corresponds to this parameter "
22 "multiplied by 188 (default: 21)");
23
24 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
25
26
27 int dib0700_get_version(struct dvb_usb_device *d, u32 *hwversion,
28 u32 *romversion, u32 *ramversion, u32 *fwtype)
29 {
30 struct dib0700_state *st = d->priv;
31 int ret;
32
33 ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0),
34 REQUEST_GET_VERSION,
35 USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
36 st->buf, 16, USB_CTRL_GET_TIMEOUT);
37 if (hwversion != NULL)
38 *hwversion = (st->buf[0] << 24) | (st->buf[1] << 16) |
39 (st->buf[2] << 8) | st->buf[3];
40 if (romversion != NULL)
41 *romversion = (st->buf[4] << 24) | (st->buf[5] << 16) |
42 (st->buf[6] << 8) | st->buf[7];
43 if (ramversion != NULL)
44 *ramversion = (st->buf[8] << 24) | (st->buf[9] << 16) |
45 (st->buf[10] << 8) | st->buf[11];
46 if (fwtype != NULL)
47 *fwtype = (st->buf[12] << 24) | (st->buf[13] << 16) |
48 (st->buf[14] << 8) | st->buf[15];
49 return ret;
50 }
51
52 /* expecting rx buffer: request data[0] data[1] ... data[2] */
53 static int dib0700_ctrl_wr(struct dvb_usb_device *d, u8 *tx, u8 txlen)
54 {
55 int status;
56
57 deb_data(">>> ");
58 debug_dump(tx, txlen, deb_data);
59
60 status = usb_control_msg(d->udev, usb_sndctrlpipe(d->udev,0),
61 tx[0], USB_TYPE_VENDOR | USB_DIR_OUT, 0, 0, tx, txlen,
62 USB_CTRL_GET_TIMEOUT);
63
64 if (status != txlen)
65 deb_data("ep 0 write error (status = %d, len: %d)\n",status,txlen);
66
67 return status < 0 ? status : 0;
68 }
69
70 /* expecting tx buffer: request data[0] ... data[n] (n <= 4) */
71 int dib0700_ctrl_rd(struct dvb_usb_device *d, u8 *tx, u8 txlen, u8 *rx, u8 rxlen)
72 {
73 u16 index, value;
74 int status;
75
76 if (txlen < 2) {
77 err("tx buffer length is smaller than 2. Makes no sense.");
78 return -EINVAL;
79 }
80 if (txlen > 4) {
81 err("tx buffer length is larger than 4. Not supported.");
82 return -EINVAL;
83 }
84
85 deb_data(">>> ");
86 debug_dump(tx,txlen,deb_data);
87
88 value = ((txlen - 2) << 8) | tx[1];
89 index = 0;
90 if (txlen > 2)
91 index |= (tx[2] << 8);
92 if (txlen > 3)
93 index |= tx[3];
94
95 status = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev,0), tx[0],
96 USB_TYPE_VENDOR | USB_DIR_IN, value, index, rx, rxlen,
97 USB_CTRL_GET_TIMEOUT);
98
99 if (status < 0)
100 deb_info("ep 0 read error (status = %d)\n",status);
101
102 deb_data("<<< ");
103 debug_dump(rx, rxlen, deb_data);
104
105 return status; /* length in case of success */
106 }
107
108 int dib0700_set_gpio(struct dvb_usb_device *d, enum dib07x0_gpios gpio, u8 gpio_dir, u8 gpio_val)
109 {
110 struct dib0700_state *st = d->priv;
111 s16 ret;
112
113 st->buf[0] = REQUEST_SET_GPIO;
114 st->buf[1] = gpio;
115 st->buf[2] = ((gpio_dir & 0x01) << 7) | ((gpio_val & 0x01) << 6);
116
117 ret = dib0700_ctrl_wr(d, st->buf, 3);
118
119 return ret;
120 }
121
122 static int dib0700_set_usb_xfer_len(struct dvb_usb_device *d, u16 nb_ts_packets)
123 {
124 struct dib0700_state *st = d->priv;
125 int ret;
126
127 if (st->fw_version >= 0x10201) {
128 st->buf[0] = REQUEST_SET_USB_XFER_LEN;
129 st->buf[1] = (nb_ts_packets >> 8) & 0xff;
130 st->buf[2] = nb_ts_packets & 0xff;
131
132 deb_info("set the USB xfer len to %i Ts packet\n", nb_ts_packets);
133
134 ret = dib0700_ctrl_wr(d, st->buf, 3);
135 } else {
136 deb_info("this firmware does not allow to change the USB xfer len\n");
137 ret = -EIO;
138 }
139
140 return ret;
141 }
142
143 /*
144 * I2C master xfer function (supported in 1.20 firmware)
145 */
146 static int dib0700_i2c_xfer_new(struct i2c_adapter *adap, struct i2c_msg *msg,
147 int num)
148 {
149 /* The new i2c firmware messages are more reliable and in particular
150 properly support i2c read calls not preceded by a write */
151
152 struct dvb_usb_device *d = i2c_get_adapdata(adap);
153 struct dib0700_state *st = d->priv;
154 uint8_t bus_mode = 1; /* 0=eeprom bus, 1=frontend bus */
155 uint8_t gen_mode = 0; /* 0=master i2c, 1=gpio i2c */
156 uint8_t en_start = 0;
157 uint8_t en_stop = 0;
158 int result, i;
159
160 /* Ensure nobody else hits the i2c bus while we're sending our
161 sequence of messages, (such as the remote control thread) */
162 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
163 return -EAGAIN;
164
165 for (i = 0; i < num; i++) {
166 if (i == 0) {
167 /* First message in the transaction */
168 en_start = 1;
169 } else if (!(msg[i].flags & I2C_M_NOSTART)) {
170 /* Device supports repeated-start */
171 en_start = 1;
172 } else {
173 /* Not the first packet and device doesn't support
174 repeated start */
175 en_start = 0;
176 }
177 if (i == (num - 1)) {
178 /* Last message in the transaction */
179 en_stop = 1;
180 }
181
182 if (msg[i].flags & I2C_M_RD) {
183 /* Read request */
184 u16 index, value;
185 uint8_t i2c_dest;
186
187 i2c_dest = (msg[i].addr << 1);
188 value = ((en_start << 7) | (en_stop << 6) |
189 (msg[i].len & 0x3F)) << 8 | i2c_dest;
190 /* I2C ctrl + FE bus; */
191 index = ((gen_mode << 6) & 0xC0) |
192 ((bus_mode << 4) & 0x30);
193
194 result = usb_control_msg(d->udev,
195 usb_rcvctrlpipe(d->udev, 0),
196 REQUEST_NEW_I2C_READ,
197 USB_TYPE_VENDOR | USB_DIR_IN,
198 value, index, msg[i].buf,
199 msg[i].len,
200 USB_CTRL_GET_TIMEOUT);
201 if (result < 0) {
202 deb_info("i2c read error (status = %d)\n", result);
203 break;
204 }
205
206 deb_data("<<< ");
207 debug_dump(msg[i].buf, msg[i].len, deb_data);
208
209 } else {
210 /* Write request */
211 st->buf[0] = REQUEST_NEW_I2C_WRITE;
212 st->buf[1] = msg[i].addr << 1;
213 st->buf[2] = (en_start << 7) | (en_stop << 6) |
214 (msg[i].len & 0x3F);
215 /* I2C ctrl + FE bus; */
216 st->buf[3] = ((gen_mode << 6) & 0xC0) |
217 ((bus_mode << 4) & 0x30);
218 /* The Actual i2c payload */
219 memcpy(&st->buf[4], msg[i].buf, msg[i].len);
220
221 deb_data(">>> ");
222 debug_dump(st->buf, msg[i].len + 4, deb_data);
223
224 result = usb_control_msg(d->udev,
225 usb_sndctrlpipe(d->udev, 0),
226 REQUEST_NEW_I2C_WRITE,
227 USB_TYPE_VENDOR | USB_DIR_OUT,
228 0, 0, st->buf, msg[i].len + 4,
229 USB_CTRL_GET_TIMEOUT);
230 if (result < 0) {
231 deb_info("i2c write error (status = %d)\n", result);
232 break;
233 }
234 }
235 }
236 mutex_unlock(&d->i2c_mutex);
237 return i;
238 }
239
240 /*
241 * I2C master xfer function (pre-1.20 firmware)
242 */
243 static int dib0700_i2c_xfer_legacy(struct i2c_adapter *adap,
244 struct i2c_msg *msg, int num)
245 {
246 struct dvb_usb_device *d = i2c_get_adapdata(adap);
247 struct dib0700_state *st = d->priv;
248 int i,len;
249
250 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
251 return -EAGAIN;
252
253 for (i = 0; i < num; i++) {
254 /* fill in the address */
255 st->buf[1] = msg[i].addr << 1;
256 /* fill the buffer */
257 memcpy(&st->buf[2], msg[i].buf, msg[i].len);
258
259 /* write/read request */
260 if (i+1 < num && (msg[i+1].flags & I2C_M_RD)) {
261 st->buf[0] = REQUEST_I2C_READ;
262 st->buf[1] |= 1;
263
264 /* special thing in the current firmware: when length is zero the read-failed */
265 len = dib0700_ctrl_rd(d, st->buf, msg[i].len + 2,
266 msg[i+1].buf, msg[i+1].len);
267 if (len <= 0) {
268 deb_info("I2C read failed on address 0x%02x\n",
269 msg[i].addr);
270 break;
271 }
272
273 msg[i+1].len = len;
274
275 i++;
276 } else {
277 st->buf[0] = REQUEST_I2C_WRITE;
278 if (dib0700_ctrl_wr(d, st->buf, msg[i].len + 2) < 0)
279 break;
280 }
281 }
282 mutex_unlock(&d->i2c_mutex);
283
284 return i;
285 }
286
287 static int dib0700_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
288 int num)
289 {
290 struct dvb_usb_device *d = i2c_get_adapdata(adap);
291 struct dib0700_state *st = d->priv;
292
293 if (st->fw_use_new_i2c_api == 1) {
294 /* User running at least fw 1.20 */
295 return dib0700_i2c_xfer_new(adap, msg, num);
296 } else {
297 /* Use legacy calls */
298 return dib0700_i2c_xfer_legacy(adap, msg, num);
299 }
300 }
301
302 static u32 dib0700_i2c_func(struct i2c_adapter *adapter)
303 {
304 return I2C_FUNC_I2C;
305 }
306
307 struct i2c_algorithm dib0700_i2c_algo = {
308 .master_xfer = dib0700_i2c_xfer,
309 .functionality = dib0700_i2c_func,
310 };
311
312 int dib0700_identify_state(struct usb_device *udev, struct dvb_usb_device_properties *props,
313 struct dvb_usb_device_description **desc, int *cold)
314 {
315 s16 ret;
316 u8 *b;
317
318 b = kmalloc(16, GFP_KERNEL);
319 if (!b)
320 return -ENOMEM;
321
322
323 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
324 REQUEST_GET_VERSION, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, b, 16, USB_CTRL_GET_TIMEOUT);
325
326 deb_info("FW GET_VERSION length: %d\n",ret);
327
328 *cold = ret <= 0;
329 deb_info("cold: %d\n", *cold);
330
331 kfree(b);
332 return 0;
333 }
334
335 static int dib0700_set_clock(struct dvb_usb_device *d, u8 en_pll,
336 u8 pll_src, u8 pll_range, u8 clock_gpio3, u16 pll_prediv,
337 u16 pll_loopdiv, u16 free_div, u16 dsuScaler)
338 {
339 struct dib0700_state *st = d->priv;
340 s16 ret;
341
342 st->buf[0] = REQUEST_SET_CLOCK;
343 st->buf[1] = (en_pll << 7) | (pll_src << 6) |
344 (pll_range << 5) | (clock_gpio3 << 4);
345 st->buf[2] = (pll_prediv >> 8) & 0xff; /* MSB */
346 st->buf[3] = pll_prediv & 0xff; /* LSB */
347 st->buf[4] = (pll_loopdiv >> 8) & 0xff; /* MSB */
348 st->buf[5] = pll_loopdiv & 0xff; /* LSB */
349 st->buf[6] = (free_div >> 8) & 0xff; /* MSB */
350 st->buf[7] = free_div & 0xff; /* LSB */
351 st->buf[8] = (dsuScaler >> 8) & 0xff; /* MSB */
352 st->buf[9] = dsuScaler & 0xff; /* LSB */
353
354 ret = dib0700_ctrl_wr(d, st->buf, 10);
355
356 return ret;
357 }
358
359 int dib0700_set_i2c_speed(struct dvb_usb_device *d, u16 scl_kHz)
360 {
361 struct dib0700_state *st = d->priv;
362 u16 divider;
363
364 if (scl_kHz == 0)
365 return -EINVAL;
366
367 st->buf[0] = REQUEST_SET_I2C_PARAM;
368 divider = (u16) (30000 / scl_kHz);
369 st->buf[1] = 0;
370 st->buf[2] = (u8) (divider >> 8);
371 st->buf[3] = (u8) (divider & 0xff);
372 divider = (u16) (72000 / scl_kHz);
373 st->buf[4] = (u8) (divider >> 8);
374 st->buf[5] = (u8) (divider & 0xff);
375 divider = (u16) (72000 / scl_kHz); /* clock: 72MHz */
376 st->buf[6] = (u8) (divider >> 8);
377 st->buf[7] = (u8) (divider & 0xff);
378
379 deb_info("setting I2C speed: %04x %04x %04x (%d kHz).",
380 (st->buf[2] << 8) | (st->buf[3]), (st->buf[4] << 8) |
381 st->buf[5], (st->buf[6] << 8) | st->buf[7], scl_kHz);
382 return dib0700_ctrl_wr(d, st->buf, 8);
383 }
384
385
386 int dib0700_ctrl_clock(struct dvb_usb_device *d, u32 clk_MHz, u8 clock_out_gp3)
387 {
388 switch (clk_MHz) {
389 case 72: dib0700_set_clock(d, 1, 0, 1, clock_out_gp3, 2, 24, 0, 0x4c); break;
390 default: return -EINVAL;
391 }
392 return 0;
393 }
394
395 static int dib0700_jumpram(struct usb_device *udev, u32 address)
396 {
397 int ret = 0, actlen;
398 u8 *buf;
399
400 buf = kmalloc(8, GFP_KERNEL);
401 if (!buf)
402 return -ENOMEM;
403 buf[0] = REQUEST_JUMPRAM;
404 buf[1] = 0;
405 buf[2] = 0;
406 buf[3] = 0;
407 buf[4] = (address >> 24) & 0xff;
408 buf[5] = (address >> 16) & 0xff;
409 buf[6] = (address >> 8) & 0xff;
410 buf[7] = address & 0xff;
411
412 if ((ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 0x01),buf,8,&actlen,1000)) < 0) {
413 deb_fw("jumpram to 0x%x failed\n",address);
414 goto out;
415 }
416 if (actlen != 8) {
417 deb_fw("jumpram to 0x%x failed\n",address);
418 ret = -EIO;
419 goto out;
420 }
421 out:
422 kfree(buf);
423 return ret;
424 }
425
426 int dib0700_download_firmware(struct usb_device *udev, const struct firmware *fw)
427 {
428 struct hexline hx;
429 int pos = 0, ret, act_len, i, adap_num;
430 u8 *buf;
431 u32 fw_version;
432
433 buf = kmalloc(260, GFP_KERNEL);
434 if (!buf)
435 return -ENOMEM;
436
437 while ((ret = dvb_usb_get_hexline(fw, &hx, &pos)) > 0) {
438 deb_fwdata("writing to address 0x%08x (buffer: 0x%02x %02x)\n",
439 hx.addr, hx.len, hx.chk);
440
441 buf[0] = hx.len;
442 buf[1] = (hx.addr >> 8) & 0xff;
443 buf[2] = hx.addr & 0xff;
444 buf[3] = hx.type;
445 memcpy(&buf[4],hx.data,hx.len);
446 buf[4+hx.len] = hx.chk;
447
448 ret = usb_bulk_msg(udev,
449 usb_sndbulkpipe(udev, 0x01),
450 buf,
451 hx.len + 5,
452 &act_len,
453 1000);
454
455 if (ret < 0) {
456 err("firmware download failed at %d with %d",pos,ret);
457 goto out;
458 }
459 }
460
461 if (ret == 0) {
462 /* start the firmware */
463 if ((ret = dib0700_jumpram(udev, 0x70000000)) == 0) {
464 info("firmware started successfully.");
465 msleep(500);
466 }
467 } else
468 ret = -EIO;
469
470 /* the number of ts packet has to be at least 1 */
471 if (nb_packet_buffer_size < 1)
472 nb_packet_buffer_size = 1;
473
474 /* get the fimware version */
475 usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
476 REQUEST_GET_VERSION,
477 USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
478 buf, 16, USB_CTRL_GET_TIMEOUT);
479 fw_version = (buf[8] << 24) | (buf[9] << 16) | (buf[10] << 8) | buf[11];
480
481 /* set the buffer size - DVB-USB is allocating URB buffers
482 * only after the firwmare download was successful */
483 for (i = 0; i < dib0700_device_count; i++) {
484 for (adap_num = 0; adap_num < dib0700_devices[i].num_adapters;
485 adap_num++) {
486 if (fw_version >= 0x10201) {
487 dib0700_devices[i].adapter[adap_num].stream.u.bulk.buffersize = 188*nb_packet_buffer_size;
488 } else {
489 /* for fw version older than 1.20.1,
490 * the buffersize has to be n times 512 */
491 dib0700_devices[i].adapter[adap_num].stream.u.bulk.buffersize = ((188*nb_packet_buffer_size+188/2)/512)*512;
492 if (dib0700_devices[i].adapter[adap_num].stream.u.bulk.buffersize < 512)
493 dib0700_devices[i].adapter[adap_num].stream.u.bulk.buffersize = 512;
494 }
495 }
496 }
497 out:
498 kfree(buf);
499 return ret;
500 }
501
502 int dib0700_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
503 {
504 struct dib0700_state *st = adap->dev->priv;
505 int ret;
506
507 if ((onoff != 0) && (st->fw_version >= 0x10201)) {
508 /* for firmware later than 1.20.1,
509 * the USB xfer length can be set */
510 ret = dib0700_set_usb_xfer_len(adap->dev,
511 st->nb_packet_buffer_size);
512 if (ret < 0) {
513 deb_info("can not set the USB xfer len\n");
514 return ret;
515 }
516 }
517
518 st->buf[0] = REQUEST_ENABLE_VIDEO;
519 /* this bit gives a kind of command,
520 * rather than enabling something or not */
521 st->buf[1] = (onoff << 4) | 0x00;
522
523 if (st->disable_streaming_master_mode == 1)
524 st->buf[2] = 0x00;
525 else
526 st->buf[2] = 0x01 << 4; /* Master mode */
527
528 st->buf[3] = 0x00;
529
530 deb_info("modifying (%d) streaming state for %d\n", onoff, adap->id);
531
532 st->channel_state &= ~0x3;
533 if ((adap->stream.props.endpoint != 2)
534 && (adap->stream.props.endpoint != 3)) {
535 deb_info("the endpoint number (%i) is not correct, use the adapter id instead", adap->stream.props.endpoint);
536 if (onoff)
537 st->channel_state |= 1 << (adap->id);
538 else
539 st->channel_state |= 1 << ~(adap->id);
540 } else {
541 if (onoff)
542 st->channel_state |= 1 << (adap->stream.props.endpoint-2);
543 else
544 st->channel_state |= 1 << (3-adap->stream.props.endpoint);
545 }
546
547 st->buf[2] |= st->channel_state;
548
549 deb_info("data for streaming: %x %x\n", st->buf[1], st->buf[2]);
550
551 return dib0700_ctrl_wr(adap->dev, st->buf, 4);
552 }
553
554 int dib0700_change_protocol(struct rc_dev *rc, u64 rc_type)
555 {
556 struct dvb_usb_device *d = rc->priv;
557 struct dib0700_state *st = d->priv;
558 int new_proto, ret;
559
560 st->buf[0] = REQUEST_SET_RC;
561 st->buf[1] = 0;
562 st->buf[2] = 0;
563
564 /* Set the IR mode */
565 if (rc_type == RC_TYPE_RC5)
566 new_proto = 1;
567 else if (rc_type == RC_TYPE_NEC)
568 new_proto = 0;
569 else if (rc_type == RC_TYPE_RC6) {
570 if (st->fw_version < 0x10200)
571 return -EINVAL;
572
573 new_proto = 2;
574 } else
575 return -EINVAL;
576
577 st->buf[1] = new_proto;
578
579 ret = dib0700_ctrl_wr(d, st->buf, 3);
580 if (ret < 0) {
581 err("ir protocol setup failed");
582 return ret;
583 }
584
585 d->props.rc.core.protocol = rc_type;
586
587 return ret;
588 }
589
590 /* Number of keypresses to ignore before start repeating */
591 #define RC_REPEAT_DELAY_V1_20 10
592
593 /* This is the structure of the RC response packet starting in firmware 1.20 */
594 struct dib0700_rc_response {
595 u8 report_id;
596 u8 data_state;
597 union {
598 u16 system16;
599 struct {
600 u8 not_system;
601 u8 system;
602 };
603 };
604 u8 data;
605 u8 not_data;
606 };
607 #define RC_MSG_SIZE_V1_20 6
608
609 static void dib0700_rc_urb_completion(struct urb *purb)
610 {
611 struct dvb_usb_device *d = purb->context;
612 struct dib0700_rc_response *poll_reply;
613 u32 uninitialized_var(keycode);
614 u8 toggle;
615
616 deb_info("%s()\n", __func__);
617 if (d == NULL)
618 return;
619
620 if (d->rc_dev == NULL) {
621 /* This will occur if disable_rc_polling=1 */
622 usb_free_urb(purb);
623 return;
624 }
625
626 poll_reply = purb->transfer_buffer;
627
628 if (purb->status < 0) {
629 deb_info("discontinuing polling\n");
630 usb_free_urb(purb);
631 return;
632 }
633
634 if (purb->actual_length != RC_MSG_SIZE_V1_20) {
635 deb_info("malformed rc msg size=%d\n", purb->actual_length);
636 goto resubmit;
637 }
638
639 deb_data("IR ID = %02X state = %02X System = %02X %02X Cmd = %02X %02X (len %d)\n",
640 poll_reply->report_id, poll_reply->data_state,
641 poll_reply->system, poll_reply->not_system,
642 poll_reply->data, poll_reply->not_data,
643 purb->actual_length);
644
645 switch (d->props.rc.core.protocol) {
646 case RC_TYPE_NEC:
647 toggle = 0;
648
649 /* NEC protocol sends repeat code as 0 0 0 FF */
650 if ((poll_reply->system == 0x00) && (poll_reply->data == 0x00)
651 && (poll_reply->not_data == 0xff)) {
652 poll_reply->data_state = 2;
653 break;
654 }
655
656 if ((poll_reply->system ^ poll_reply->not_system) != 0xff) {
657 deb_data("NEC extended protocol\n");
658 /* NEC extended code - 24 bits */
659 keycode = be16_to_cpu(poll_reply->system16) << 8 | poll_reply->data;
660 } else {
661 deb_data("NEC normal protocol\n");
662 /* normal NEC code - 16 bits */
663 keycode = poll_reply->system << 8 | poll_reply->data;
664 }
665
666 break;
667 default:
668 deb_data("RC5 protocol\n");
669 /* RC5 Protocol */
670 toggle = poll_reply->report_id;
671 keycode = poll_reply->system << 8 | poll_reply->data;
672
673 break;
674 }
675
676 if ((poll_reply->data + poll_reply->not_data) != 0xff) {
677 /* Key failed integrity check */
678 err("key failed integrity check: %04x %02x %02x",
679 poll_reply->system,
680 poll_reply->data, poll_reply->not_data);
681 goto resubmit;
682 }
683
684 rc_keydown(d->rc_dev, keycode, toggle);
685
686 resubmit:
687 /* Clean the buffer before we requeue */
688 memset(purb->transfer_buffer, 0, RC_MSG_SIZE_V1_20);
689
690 /* Requeue URB */
691 usb_submit_urb(purb, GFP_ATOMIC);
692 }
693
694 int dib0700_rc_setup(struct dvb_usb_device *d)
695 {
696 struct dib0700_state *st = d->priv;
697 struct urb *purb;
698 int ret;
699
700 /* Poll-based. Don't initialize bulk mode */
701 if (st->fw_version < 0x10200)
702 return 0;
703
704 /* Starting in firmware 1.20, the RC info is provided on a bulk pipe */
705 purb = usb_alloc_urb(0, GFP_KERNEL);
706 if (purb == NULL) {
707 err("rc usb alloc urb failed\n");
708 return -ENOMEM;
709 }
710
711 purb->transfer_buffer = kzalloc(RC_MSG_SIZE_V1_20, GFP_KERNEL);
712 if (purb->transfer_buffer == NULL) {
713 err("rc kzalloc failed\n");
714 usb_free_urb(purb);
715 return -ENOMEM;
716 }
717
718 purb->status = -EINPROGRESS;
719 usb_fill_bulk_urb(purb, d->udev, usb_rcvbulkpipe(d->udev, 1),
720 purb->transfer_buffer, RC_MSG_SIZE_V1_20,
721 dib0700_rc_urb_completion, d);
722
723 ret = usb_submit_urb(purb, GFP_ATOMIC);
724 if (ret)
725 err("rc submit urb failed\n");
726
727 return ret;
728 }
729
730 static int dib0700_probe(struct usb_interface *intf,
731 const struct usb_device_id *id)
732 {
733 int i;
734 struct dvb_usb_device *dev;
735
736 for (i = 0; i < dib0700_device_count; i++)
737 if (dvb_usb_device_init(intf, &dib0700_devices[i], THIS_MODULE,
738 &dev, adapter_nr) == 0) {
739 struct dib0700_state *st = dev->priv;
740 u32 hwversion, romversion, fw_version, fwtype;
741
742 dib0700_get_version(dev, &hwversion, &romversion,
743 &fw_version, &fwtype);
744
745 deb_info("Firmware version: %x, %d, 0x%x, %d\n",
746 hwversion, romversion, fw_version, fwtype);
747
748 st->fw_version = fw_version;
749 st->nb_packet_buffer_size = (u32)nb_packet_buffer_size;
750
751 /* Disable polling mode on newer firmwares */
752 if (st->fw_version >= 0x10200)
753 dev->props.rc.core.bulk_mode = true;
754 else
755 dev->props.rc.core.bulk_mode = false;
756
757 dib0700_rc_setup(dev);
758
759 return 0;
760 }
761
762 return -ENODEV;
763 }
764
765 static struct usb_driver dib0700_driver = {
766 .name = "dvb_usb_dib0700",
767 .probe = dib0700_probe,
768 .disconnect = dvb_usb_device_exit,
769 .id_table = dib0700_usb_id_table,
770 };
771
772 /* module stuff */
773 static int __init dib0700_module_init(void)
774 {
775 int result;
776 info("loaded with support for %d different device-types", dib0700_device_count);
777 if ((result = usb_register(&dib0700_driver))) {
778 err("usb_register failed. Error number %d",result);
779 return result;
780 }
781
782 return 0;
783 }
784
785 static void __exit dib0700_module_exit(void)
786 {
787 /* deregister this driver from the USB subsystem */
788 usb_deregister(&dib0700_driver);
789 }
790
791 module_init (dib0700_module_init);
792 module_exit (dib0700_module_exit);
793
794 MODULE_AUTHOR("Patrick Boettcher <pboettcher@dibcom.fr>");
795 MODULE_DESCRIPTION("Driver for devices based on DiBcom DiB0700 - USB bridge");
796 MODULE_VERSION("1.0");
797 MODULE_LICENSE("GPL");
Linux Btrfs Development