1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* DVB USB compliant Linux driver for the Afatech 9005
3 * USB1.1 DVB-T receiver.
4 *
5 * Copyright (C) 2007 Luca Olivetti (luca@ventoso.org)
6 *
7 * Thanks to Afatech who kindly provided information.
8 *
9 * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
10 */
11 #include "af9005.h"
12
13 /* debug */
14 int dvb_usb_af9005_debug;
15 module_param_named(debug, dvb_usb_af9005_debug, int, 0644);
16 MODULE_PARM_DESC(debug,
17 "set debugging level (1=info,xfer=2,rc=4,reg=8,i2c=16,fw=32 (or-able))."
18 DVB_USB_DEBUG_STATUS);
19 /* enable obnoxious led */
20 bool dvb_usb_af9005_led = true;
21 module_param_named(led, dvb_usb_af9005_led, bool, 0644);
22 MODULE_PARM_DESC(led, "enable led (default: 1).");
23
24 /* eeprom dump */
25 static int dvb_usb_af9005_dump_eeprom;
26 module_param_named(dump_eeprom, dvb_usb_af9005_dump_eeprom, int, 0);
27 MODULE_PARM_DESC(dump_eeprom, "dump contents of the eeprom.");
28
29 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
30
31 /* remote control decoder */
32 static int (*rc_decode) (struct dvb_usb_device *d, u8 *data, int len,
33 u32 *event, int *state);
34 static void *rc_keys;
35 static int *rc_keys_size;
36
37 u8 regmask[8] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff };
38
39 struct af9005_device_state {
40 u8 sequence;
41 int led_state;
42 unsigned char data[256];
43 };
44
af9005_generic_read_write(struct dvb_usb_device * d,u16 reg,int readwrite,int type,u8 * values,int len)45 static int af9005_generic_read_write(struct dvb_usb_device *d, u16 reg,
46 int readwrite, int type, u8 * values, int len)
47 {
48 struct af9005_device_state *st = d->priv;
49 u8 command, seq;
50 int i, ret;
51
52 if (len < 1) {
53 err("generic read/write, less than 1 byte. Makes no sense.");
54 return -EINVAL;
55 }
56 if (len > 8) {
57 err("generic read/write, more than 8 bytes. Not supported.");
58 return -EINVAL;
59 }
60
61 mutex_lock(&d->data_mutex);
62 st->data[0] = 14; /* rest of buffer length low */
63 st->data[1] = 0; /* rest of buffer length high */
64
65 st->data[2] = AF9005_REGISTER_RW; /* register operation */
66 st->data[3] = 12; /* rest of buffer length */
67
68 st->data[4] = seq = st->sequence++; /* sequence number */
69
70 st->data[5] = (u8) (reg >> 8); /* register address */
71 st->data[6] = (u8) (reg & 0xff);
72
73 if (type == AF9005_OFDM_REG) {
74 command = AF9005_CMD_OFDM_REG;
75 } else {
76 command = AF9005_CMD_TUNER;
77 }
78
79 if (len > 1)
80 command |=
81 AF9005_CMD_BURST | AF9005_CMD_AUTOINC | (len - 1) << 3;
82 command |= readwrite;
83 if (readwrite == AF9005_CMD_WRITE)
84 for (i = 0; i < len; i++)
85 st->data[8 + i] = values[i];
86 else if (type == AF9005_TUNER_REG)
87 /* read command for tuner, the first byte contains the i2c address */
88 st->data[8] = values[0];
89 st->data[7] = command;
90
91 ret = dvb_usb_generic_rw(d, st->data, 16, st->data, 17, 0);
92 if (ret)
93 goto ret;
94
95 /* sanity check */
96 if (st->data[2] != AF9005_REGISTER_RW_ACK) {
97 err("generic read/write, wrong reply code.");
98 ret = -EIO;
99 goto ret;
100 }
101 if (st->data[3] != 0x0d) {
102 err("generic read/write, wrong length in reply.");
103 ret = -EIO;
104 goto ret;
105 }
106 if (st->data[4] != seq) {
107 err("generic read/write, wrong sequence in reply.");
108 ret = -EIO;
109 goto ret;
110 }
111 /*
112 * In thesis, both input and output buffers should have
113 * identical values for st->data[5] to st->data[8].
114 * However, windows driver doesn't check these fields, in fact
115 * sometimes the register in the reply is different that what
116 * has been sent
117 */
118 if (st->data[16] != 0x01) {
119 err("generic read/write wrong status code in reply.");
120 ret = -EIO;
121 goto ret;
122 }
123
124 if (readwrite == AF9005_CMD_READ)
125 for (i = 0; i < len; i++)
126 values[i] = st->data[8 + i];
127
128 ret:
129 mutex_unlock(&d->data_mutex);
130 return ret;
131
132 }
133
af9005_read_ofdm_register(struct dvb_usb_device * d,u16 reg,u8 * value)134 int af9005_read_ofdm_register(struct dvb_usb_device *d, u16 reg, u8 * value)
135 {
136 int ret;
137 deb_reg("read register %x ", reg);
138 ret = af9005_generic_read_write(d, reg,
139 AF9005_CMD_READ, AF9005_OFDM_REG,
140 value, 1);
141 if (ret)
142 deb_reg("failed\n");
143 else
144 deb_reg("value %x\n", *value);
145 return ret;
146 }
147
af9005_read_ofdm_registers(struct dvb_usb_device * d,u16 reg,u8 * values,int len)148 int af9005_read_ofdm_registers(struct dvb_usb_device *d, u16 reg,
149 u8 * values, int len)
150 {
151 int ret;
152 deb_reg("read %d registers %x ", len, reg);
153 ret = af9005_generic_read_write(d, reg,
154 AF9005_CMD_READ, AF9005_OFDM_REG,
155 values, len);
156 if (ret)
157 deb_reg("failed\n");
158 else
159 debug_dump(values, len, deb_reg);
160 return ret;
161 }
162
af9005_write_ofdm_register(struct dvb_usb_device * d,u16 reg,u8 value)163 int af9005_write_ofdm_register(struct dvb_usb_device *d, u16 reg, u8 value)
164 {
165 int ret;
166 u8 temp = value;
167 deb_reg("write register %x value %x ", reg, value);
168 ret = af9005_generic_read_write(d, reg,
169 AF9005_CMD_WRITE, AF9005_OFDM_REG,
170 &temp, 1);
171 if (ret)
172 deb_reg("failed\n");
173 else
174 deb_reg("ok\n");
175 return ret;
176 }
177
af9005_write_ofdm_registers(struct dvb_usb_device * d,u16 reg,u8 * values,int len)178 int af9005_write_ofdm_registers(struct dvb_usb_device *d, u16 reg,
179 u8 * values, int len)
180 {
181 int ret;
182 deb_reg("write %d registers %x values ", len, reg);
183 debug_dump(values, len, deb_reg);
184
185 ret = af9005_generic_read_write(d, reg,
186 AF9005_CMD_WRITE, AF9005_OFDM_REG,
187 values, len);
188 if (ret)
189 deb_reg("failed\n");
190 else
191 deb_reg("ok\n");
192 return ret;
193 }
194
af9005_read_register_bits(struct dvb_usb_device * d,u16 reg,u8 pos,u8 len,u8 * value)195 int af9005_read_register_bits(struct dvb_usb_device *d, u16 reg, u8 pos,
196 u8 len, u8 * value)
197 {
198 u8 temp;
199 int ret;
200 deb_reg("read bits %x %x %x", reg, pos, len);
201 ret = af9005_read_ofdm_register(d, reg, &temp);
202 if (ret) {
203 deb_reg(" failed\n");
204 return ret;
205 }
206 *value = (temp >> pos) & regmask[len - 1];
207 deb_reg(" value %x\n", *value);
208 return 0;
209
210 }
211
af9005_write_register_bits(struct dvb_usb_device * d,u16 reg,u8 pos,u8 len,u8 value)212 int af9005_write_register_bits(struct dvb_usb_device *d, u16 reg, u8 pos,
213 u8 len, u8 value)
214 {
215 u8 temp, mask;
216 int ret;
217 deb_reg("write bits %x %x %x value %x\n", reg, pos, len, value);
218 if (pos == 0 && len == 8)
219 return af9005_write_ofdm_register(d, reg, value);
220 ret = af9005_read_ofdm_register(d, reg, &temp);
221 if (ret)
222 return ret;
223 mask = regmask[len - 1] << pos;
224 temp = (temp & ~mask) | ((value << pos) & mask);
225 return af9005_write_ofdm_register(d, reg, temp);
226
227 }
228
af9005_usb_read_tuner_registers(struct dvb_usb_device * d,u16 reg,u8 * values,int len)229 static int af9005_usb_read_tuner_registers(struct dvb_usb_device *d,
230 u16 reg, u8 * values, int len)
231 {
232 return af9005_generic_read_write(d, reg,
233 AF9005_CMD_READ, AF9005_TUNER_REG,
234 values, len);
235 }
236
af9005_usb_write_tuner_registers(struct dvb_usb_device * d,u16 reg,u8 * values,int len)237 static int af9005_usb_write_tuner_registers(struct dvb_usb_device *d,
238 u16 reg, u8 * values, int len)
239 {
240 return af9005_generic_read_write(d, reg,
241 AF9005_CMD_WRITE,
242 AF9005_TUNER_REG, values, len);
243 }
244
af9005_write_tuner_registers(struct dvb_usb_device * d,u16 reg,u8 * values,int len)245 int af9005_write_tuner_registers(struct dvb_usb_device *d, u16 reg,
246 u8 * values, int len)
247 {
248 /* don't let the name of this function mislead you: it's just used
249 as an interface from the firmware to the i2c bus. The actual
250 i2c addresses are contained in the data */
251 int ret, i, done = 0, fail = 0;
252 u8 temp;
253 ret = af9005_usb_write_tuner_registers(d, reg, values, len);
254 if (ret)
255 return ret;
256 if (reg != 0xffff) {
257 /* check if write done (0xa40d bit 1) or fail (0xa40d bit 2) */
258 for (i = 0; i < 200; i++) {
259 ret =
260 af9005_read_ofdm_register(d,
261 xd_I2C_i2c_m_status_wdat_done,
262 &temp);
263 if (ret)
264 return ret;
265 done = temp & (regmask[i2c_m_status_wdat_done_len - 1]
266 << i2c_m_status_wdat_done_pos);
267 if (done)
268 break;
269 fail = temp & (regmask[i2c_m_status_wdat_fail_len - 1]
270 << i2c_m_status_wdat_fail_pos);
271 if (fail)
272 break;
273 msleep(50);
274 }
275 if (i == 200)
276 return -ETIMEDOUT;
277 if (fail) {
278 /* clear write fail bit */
279 af9005_write_register_bits(d,
280 xd_I2C_i2c_m_status_wdat_fail,
281 i2c_m_status_wdat_fail_pos,
282 i2c_m_status_wdat_fail_len,
283 1);
284 return -EIO;
285 }
286 /* clear write done bit */
287 ret =
288 af9005_write_register_bits(d,
289 xd_I2C_i2c_m_status_wdat_fail,
290 i2c_m_status_wdat_done_pos,
291 i2c_m_status_wdat_done_len, 1);
292 if (ret)
293 return ret;
294 }
295 return 0;
296 }
297
af9005_read_tuner_registers(struct dvb_usb_device * d,u16 reg,u8 addr,u8 * values,int len)298 int af9005_read_tuner_registers(struct dvb_usb_device *d, u16 reg, u8 addr,
299 u8 * values, int len)
300 {
301 /* don't let the name of this function mislead you: it's just used
302 as an interface from the firmware to the i2c bus. The actual
303 i2c addresses are contained in the data */
304 int ret, i;
305 u8 temp, buf[2];
306
307 buf[0] = addr; /* tuner i2c address */
308 buf[1] = values[0]; /* tuner register */
309
310 values[0] = addr + 0x01; /* i2c read address */
311
312 if (reg == APO_REG_I2C_RW_SILICON_TUNER) {
313 /* write tuner i2c address to tuner, 0c00c0 undocumented, found by sniffing */
314 ret = af9005_write_tuner_registers(d, 0x00c0, buf, 2);
315 if (ret)
316 return ret;
317 }
318
319 /* send read command to ofsm */
320 ret = af9005_usb_read_tuner_registers(d, reg, values, 1);
321 if (ret)
322 return ret;
323
324 /* check if read done */
325 for (i = 0; i < 200; i++) {
326 ret = af9005_read_ofdm_register(d, 0xa408, &temp);
327 if (ret)
328 return ret;
329 if (temp & 0x01)
330 break;
331 msleep(50);
332 }
333 if (i == 200)
334 return -ETIMEDOUT;
335
336 /* clear read done bit (by writing 1) */
337 ret = af9005_write_ofdm_register(d, xd_I2C_i2c_m_data8, 1);
338 if (ret)
339 return ret;
340
341 /* get read data (available from 0xa400) */
342 for (i = 0; i < len; i++) {
343 ret = af9005_read_ofdm_register(d, 0xa400 + i, &temp);
344 if (ret)
345 return ret;
346 values[i] = temp;
347 }
348 return 0;
349 }
350
af9005_i2c_write(struct dvb_usb_device * d,u8 i2caddr,u8 reg,u8 * data,int len)351 static int af9005_i2c_write(struct dvb_usb_device *d, u8 i2caddr, u8 reg,
352 u8 * data, int len)
353 {
354 int ret, i;
355 u8 buf[3];
356 deb_i2c("i2c_write i2caddr %x, reg %x, len %d data ", i2caddr,
357 reg, len);
358 debug_dump(data, len, deb_i2c);
359
360 for (i = 0; i < len; i++) {
361 buf[0] = i2caddr;
362 buf[1] = reg + (u8) i;
363 buf[2] = data[i];
364 ret =
365 af9005_write_tuner_registers(d,
366 APO_REG_I2C_RW_SILICON_TUNER,
367 buf, 3);
368 if (ret) {
369 deb_i2c("i2c_write failed\n");
370 return ret;
371 }
372 }
373 deb_i2c("i2c_write ok\n");
374 return 0;
375 }
376
af9005_i2c_read(struct dvb_usb_device * d,u8 i2caddr,u8 reg,u8 * data,int len)377 static int af9005_i2c_read(struct dvb_usb_device *d, u8 i2caddr, u8 reg,
378 u8 * data, int len)
379 {
380 int ret, i;
381 u8 temp;
382 deb_i2c("i2c_read i2caddr %x, reg %x, len %d\n ", i2caddr, reg, len);
383 for (i = 0; i < len; i++) {
384 temp = reg + i;
385 ret =
386 af9005_read_tuner_registers(d,
387 APO_REG_I2C_RW_SILICON_TUNER,
388 i2caddr, &temp, 1);
389 if (ret) {
390 deb_i2c("i2c_read failed\n");
391 return ret;
392 }
393 data[i] = temp;
394 }
395 deb_i2c("i2c data read: ");
396 debug_dump(data, len, deb_i2c);
397 return 0;
398 }
399
af9005_i2c_xfer(struct i2c_adapter * adap,struct i2c_msg msg[],int num)400 static int af9005_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
401 int num)
402 {
403 /* only implements what the mt2060 module does, don't know how
404 to make it really generic */
405 struct dvb_usb_device *d = i2c_get_adapdata(adap);
406 int ret;
407 u8 reg, addr;
408 u8 *value;
409
410 if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
411 return -EAGAIN;
412
413 if (num > 2)
414 warn("more than 2 i2c messages at a time is not handled yet. TODO.");
415
416 if (num == 2) {
417 /* reads a single register */
418 reg = *msg[0].buf;
419 addr = msg[0].addr;
420 value = msg[1].buf;
421 ret = af9005_i2c_read(d, addr, reg, value, 1);
422 if (ret == 0)
423 ret = 2;
424 } else {
425 /* write one or more registers */
426 reg = msg[0].buf[0];
427 addr = msg[0].addr;
428 value = &msg[0].buf[1];
429 ret = af9005_i2c_write(d, addr, reg, value, msg[0].len - 1);
430 if (ret == 0)
431 ret = 1;
432 }
433
434 mutex_unlock(&d->i2c_mutex);
435 return ret;
436 }
437
af9005_i2c_func(struct i2c_adapter * adapter)438 static u32 af9005_i2c_func(struct i2c_adapter *adapter)
439 {
440 return I2C_FUNC_I2C;
441 }
442
443 static struct i2c_algorithm af9005_i2c_algo = {
444 .master_xfer = af9005_i2c_xfer,
445 .functionality = af9005_i2c_func,
446 };
447
af9005_send_command(struct dvb_usb_device * d,u8 command,u8 * wbuf,int wlen,u8 * rbuf,int rlen)448 int af9005_send_command(struct dvb_usb_device *d, u8 command, u8 * wbuf,
449 int wlen, u8 * rbuf, int rlen)
450 {
451 struct af9005_device_state *st = d->priv;
452
453 int ret, i, packet_len;
454 u8 seq;
455
456 if (wlen < 0) {
457 err("send command, wlen less than 0 bytes. Makes no sense.");
458 return -EINVAL;
459 }
460 if (wlen > 54) {
461 err("send command, wlen more than 54 bytes. Not supported.");
462 return -EINVAL;
463 }
464 if (rlen > 54) {
465 err("send command, rlen more than 54 bytes. Not supported.");
466 return -EINVAL;
467 }
468 packet_len = wlen + 5;
469
470 mutex_lock(&d->data_mutex);
471
472 st->data[0] = (u8) (packet_len & 0xff);
473 st->data[1] = (u8) ((packet_len & 0xff00) >> 8);
474
475 st->data[2] = 0x26; /* packet type */
476 st->data[3] = wlen + 3;
477 st->data[4] = seq = st->sequence++;
478 st->data[5] = command;
479 st->data[6] = wlen;
480 for (i = 0; i < wlen; i++)
481 st->data[7 + i] = wbuf[i];
482 ret = dvb_usb_generic_rw(d, st->data, wlen + 7, st->data, rlen + 7, 0);
483 if (st->data[2] != 0x27) {
484 err("send command, wrong reply code.");
485 ret = -EIO;
486 } else if (st->data[4] != seq) {
487 err("send command, wrong sequence in reply.");
488 ret = -EIO;
489 } else if (st->data[5] != 0x01) {
490 err("send command, wrong status code in reply.");
491 ret = -EIO;
492 } else if (st->data[6] != rlen) {
493 err("send command, invalid data length in reply.");
494 ret = -EIO;
495 }
496 if (!ret) {
497 for (i = 0; i < rlen; i++)
498 rbuf[i] = st->data[i + 7];
499 }
500
501 mutex_unlock(&d->data_mutex);
502 return ret;
503 }
504
af9005_read_eeprom(struct dvb_usb_device * d,u8 address,u8 * values,int len)505 int af9005_read_eeprom(struct dvb_usb_device *d, u8 address, u8 * values,
506 int len)
507 {
508 struct af9005_device_state *st = d->priv;
509 u8 seq;
510 int ret, i;
511
512 mutex_lock(&d->data_mutex);
513
514 memset(st->data, 0, sizeof(st->data));
515
516 st->data[0] = 14; /* length of rest of packet low */
517 st->data[1] = 0; /* length of rest of packer high */
518
519 st->data[2] = 0x2a; /* read/write eeprom */
520
521 st->data[3] = 12; /* size */
522
523 st->data[4] = seq = st->sequence++;
524
525 st->data[5] = 0; /* read */
526
527 st->data[6] = len;
528 st->data[7] = address;
529 ret = dvb_usb_generic_rw(d, st->data, 16, st->data, 14, 0);
530 if (st->data[2] != 0x2b) {
531 err("Read eeprom, invalid reply code");
532 ret = -EIO;
533 } else if (st->data[3] != 10) {
534 err("Read eeprom, invalid reply length");
535 ret = -EIO;
536 } else if (st->data[4] != seq) {
537 err("Read eeprom, wrong sequence in reply ");
538 ret = -EIO;
539 } else if (st->data[5] != 1) {
540 err("Read eeprom, wrong status in reply ");
541 ret = -EIO;
542 }
543
544 if (!ret) {
545 for (i = 0; i < len; i++)
546 values[i] = st->data[6 + i];
547 }
548 mutex_unlock(&d->data_mutex);
549
550 return ret;
551 }
552
af9005_boot_packet(struct usb_device * udev,int type,u8 * reply,u8 * buf,int size)553 static int af9005_boot_packet(struct usb_device *udev, int type, u8 *reply,
554 u8 *buf, int size)
555 {
556 u16 checksum;
557 int act_len = 0, i, ret;
558
559 memset(buf, 0, size);
560 buf[0] = (u8) (FW_BULKOUT_SIZE & 0xff);
561 buf[1] = (u8) ((FW_BULKOUT_SIZE >> 8) & 0xff);
562 switch (type) {
563 case FW_CONFIG:
564 buf[2] = 0x11;
565 buf[3] = 0x04;
566 buf[4] = 0x00; /* sequence number, original driver doesn't increment it here */
567 buf[5] = 0x03;
568 checksum = buf[4] + buf[5];
569 buf[6] = (u8) ((checksum >> 8) & 0xff);
570 buf[7] = (u8) (checksum & 0xff);
571 break;
572 case FW_CONFIRM:
573 buf[2] = 0x11;
574 buf[3] = 0x04;
575 buf[4] = 0x00; /* sequence number, original driver doesn't increment it here */
576 buf[5] = 0x01;
577 checksum = buf[4] + buf[5];
578 buf[6] = (u8) ((checksum >> 8) & 0xff);
579 buf[7] = (u8) (checksum & 0xff);
580 break;
581 case FW_BOOT:
582 buf[2] = 0x10;
583 buf[3] = 0x08;
584 buf[4] = 0x00; /* sequence number, original driver doesn't increment it here */
585 buf[5] = 0x97;
586 buf[6] = 0xaa;
587 buf[7] = 0x55;
588 buf[8] = 0xa5;
589 buf[9] = 0x5a;
590 checksum = 0;
591 for (i = 4; i <= 9; i++)
592 checksum += buf[i];
593 buf[10] = (u8) ((checksum >> 8) & 0xff);
594 buf[11] = (u8) (checksum & 0xff);
595 break;
596 default:
597 err("boot packet invalid boot packet type");
598 return -EINVAL;
599 }
600 deb_fw(">>> ");
601 debug_dump(buf, FW_BULKOUT_SIZE + 2, deb_fw);
602
603 ret = usb_bulk_msg(udev,
604 usb_sndbulkpipe(udev, 0x02),
605 buf, FW_BULKOUT_SIZE + 2, &act_len, 2000);
606 if (ret)
607 err("boot packet bulk message failed: %d (%d/%d)", ret,
608 FW_BULKOUT_SIZE + 2, act_len);
609 else
610 ret = act_len != FW_BULKOUT_SIZE + 2 ? -1 : 0;
611 if (ret)
612 return ret;
613 memset(buf, 0, 9);
614 ret = usb_bulk_msg(udev,
615 usb_rcvbulkpipe(udev, 0x01), buf, 9, &act_len, 2000);
616 if (ret) {
617 err("boot packet recv bulk message failed: %d", ret);
618 return ret;
619 }
620 deb_fw("<<< ");
621 debug_dump(buf, act_len, deb_fw);
622 checksum = 0;
623 switch (type) {
624 case FW_CONFIG:
625 if (buf[2] != 0x11) {
626 err("boot bad config header.");
627 return -EIO;
628 }
629 if (buf[3] != 0x05) {
630 err("boot bad config size.");
631 return -EIO;
632 }
633 if (buf[4] != 0x00) {
634 err("boot bad config sequence.");
635 return -EIO;
636 }
637 if (buf[5] != 0x04) {
638 err("boot bad config subtype.");
639 return -EIO;
640 }
641 for (i = 4; i <= 6; i++)
642 checksum += buf[i];
643 if (buf[7] * 256 + buf[8] != checksum) {
644 err("boot bad config checksum.");
645 return -EIO;
646 }
647 *reply = buf[6];
648 break;
649 case FW_CONFIRM:
650 if (buf[2] != 0x11) {
651 err("boot bad confirm header.");
652 return -EIO;
653 }
654 if (buf[3] != 0x05) {
655 err("boot bad confirm size.");
656 return -EIO;
657 }
658 if (buf[4] != 0x00) {
659 err("boot bad confirm sequence.");
660 return -EIO;
661 }
662 if (buf[5] != 0x02) {
663 err("boot bad confirm subtype.");
664 return -EIO;
665 }
666 for (i = 4; i <= 6; i++)
667 checksum += buf[i];
668 if (buf[7] * 256 + buf[8] != checksum) {
669 err("boot bad confirm checksum.");
670 return -EIO;
671 }
672 *reply = buf[6];
673 break;
674 case FW_BOOT:
675 if (buf[2] != 0x10) {
676 err("boot bad boot header.");
677 return -EIO;
678 }
679 if (buf[3] != 0x05) {
680 err("boot bad boot size.");
681 return -EIO;
682 }
683 if (buf[4] != 0x00) {
684 err("boot bad boot sequence.");
685 return -EIO;
686 }
687 if (buf[5] != 0x01) {
688 err("boot bad boot pattern 01.");
689 return -EIO;
690 }
691 if (buf[6] != 0x10) {
692 err("boot bad boot pattern 10.");
693 return -EIO;
694 }
695 for (i = 4; i <= 6; i++)
696 checksum += buf[i];
697 if (buf[7] * 256 + buf[8] != checksum) {
698 err("boot bad boot checksum.");
699 return -EIO;
700 }
701 break;
702
703 }
704
705 return 0;
706 }
707
af9005_download_firmware(struct usb_device * udev,const struct firmware * fw)708 static int af9005_download_firmware(struct usb_device *udev, const struct firmware *fw)
709 {
710 int i, packets, ret, act_len;
711
712 u8 *buf;
713 u8 reply;
714
715 buf = kmalloc(FW_BULKOUT_SIZE + 2, GFP_KERNEL);
716 if (!buf)
717 return -ENOMEM;
718
719 ret = af9005_boot_packet(udev, FW_CONFIG, &reply, buf,
720 FW_BULKOUT_SIZE + 2);
721 if (ret)
722 goto err;
723 if (reply != 0x01) {
724 err("before downloading firmware, FW_CONFIG expected 0x01, received 0x%x", reply);
725 ret = -EIO;
726 goto err;
727 }
728 packets = fw->size / FW_BULKOUT_SIZE;
729 buf[0] = (u8) (FW_BULKOUT_SIZE & 0xff);
730 buf[1] = (u8) ((FW_BULKOUT_SIZE >> 8) & 0xff);
731 for (i = 0; i < packets; i++) {
732 memcpy(&buf[2], fw->data + i * FW_BULKOUT_SIZE,
733 FW_BULKOUT_SIZE);
734 deb_fw(">>> ");
735 debug_dump(buf, FW_BULKOUT_SIZE + 2, deb_fw);
736 ret = usb_bulk_msg(udev,
737 usb_sndbulkpipe(udev, 0x02),
738 buf, FW_BULKOUT_SIZE + 2, &act_len, 1000);
739 if (ret) {
740 err("firmware download failed at packet %d with code %d", i, ret);
741 goto err;
742 }
743 }
744 ret = af9005_boot_packet(udev, FW_CONFIRM, &reply,
745 buf, FW_BULKOUT_SIZE + 2);
746 if (ret)
747 goto err;
748 if (reply != (u8) (packets & 0xff)) {
749 err("after downloading firmware, FW_CONFIRM expected 0x%x, received 0x%x", packets & 0xff, reply);
750 ret = -EIO;
751 goto err;
752 }
753 ret = af9005_boot_packet(udev, FW_BOOT, &reply, buf,
754 FW_BULKOUT_SIZE + 2);
755 if (ret)
756 goto err;
757 ret = af9005_boot_packet(udev, FW_CONFIG, &reply, buf,
758 FW_BULKOUT_SIZE + 2);
759 if (ret)
760 goto err;
761 if (reply != 0x02) {
762 err("after downloading firmware, FW_CONFIG expected 0x02, received 0x%x", reply);
763 ret = -EIO;
764 goto err;
765 }
766
767 err:
768 kfree(buf);
769 return ret;
770
771 }
772
af9005_led_control(struct dvb_usb_device * d,int onoff)773 int af9005_led_control(struct dvb_usb_device *d, int onoff)
774 {
775 struct af9005_device_state *st = d->priv;
776 int temp, ret;
777
778 if (onoff && dvb_usb_af9005_led)
779 temp = 1;
780 else
781 temp = 0;
782 if (st->led_state != temp) {
783 ret =
784 af9005_write_register_bits(d, xd_p_reg_top_locken1,
785 reg_top_locken1_pos,
786 reg_top_locken1_len, temp);
787 if (ret)
788 return ret;
789 ret =
790 af9005_write_register_bits(d, xd_p_reg_top_lock1,
791 reg_top_lock1_pos,
792 reg_top_lock1_len, temp);
793 if (ret)
794 return ret;
795 st->led_state = temp;
796 }
797 return 0;
798 }
799
af9005_frontend_attach(struct dvb_usb_adapter * adap)800 static int af9005_frontend_attach(struct dvb_usb_adapter *adap)
801 {
802 u8 buf[8];
803 int i;
804
805 /* without these calls the first commands after downloading
806 the firmware fail. I put these calls here to simulate
807 what it is done in dvb-usb-init.c.
808 */
809 struct usb_device *udev = adap->dev->udev;
810 usb_clear_halt(udev, usb_sndbulkpipe(udev, 2));
811 usb_clear_halt(udev, usb_rcvbulkpipe(udev, 1));
812 if (dvb_usb_af9005_dump_eeprom) {
813 printk("EEPROM DUMP\n");
814 for (i = 0; i < 255; i += 8) {
815 af9005_read_eeprom(adap->dev, i, buf, 8);
816 debug_dump(buf, 8, printk);
817 }
818 }
819 adap->fe_adap[0].fe = af9005_fe_attach(adap->dev);
820 return 0;
821 }
822
af9005_rc_query(struct dvb_usb_device * d,u32 * event,int * state)823 static int af9005_rc_query(struct dvb_usb_device *d, u32 * event, int *state)
824 {
825 struct af9005_device_state *st = d->priv;
826 int ret, len;
827 u8 seq;
828
829 *state = REMOTE_NO_KEY_PRESSED;
830 if (rc_decode == NULL) {
831 /* it shouldn't never come here */
832 return 0;
833 }
834
835 mutex_lock(&d->data_mutex);
836
837 /* deb_info("rc_query\n"); */
838 st->data[0] = 3; /* rest of packet length low */
839 st->data[1] = 0; /* rest of packet length high */
840 st->data[2] = 0x40; /* read remote */
841 st->data[3] = 1; /* rest of packet length */
842 st->data[4] = seq = st->sequence++; /* sequence number */
843 ret = dvb_usb_generic_rw(d, st->data, 5, st->data, 256, 0);
844 if (ret) {
845 err("rc query failed");
846 goto ret;
847 }
848 if (st->data[2] != 0x41) {
849 err("rc query bad header.");
850 ret = -EIO;
851 goto ret;
852 } else if (st->data[4] != seq) {
853 err("rc query bad sequence.");
854 ret = -EIO;
855 goto ret;
856 }
857 len = st->data[5];
858 if (len > 246) {
859 err("rc query invalid length");
860 ret = -EIO;
861 goto ret;
862 }
863 if (len > 0) {
864 deb_rc("rc data (%d) ", len);
865 debug_dump((st->data + 6), len, deb_rc);
866 ret = rc_decode(d, &st->data[6], len, event, state);
867 if (ret) {
868 err("rc_decode failed");
869 goto ret;
870 } else {
871 deb_rc("rc_decode state %x event %x\n", *state, *event);
872 if (*state == REMOTE_KEY_REPEAT)
873 *event = d->last_event;
874 }
875 }
876
877 ret:
878 mutex_unlock(&d->data_mutex);
879 return ret;
880 }
881
af9005_power_ctrl(struct dvb_usb_device * d,int onoff)882 static int af9005_power_ctrl(struct dvb_usb_device *d, int onoff)
883 {
884
885 return 0;
886 }
887
af9005_pid_filter_control(struct dvb_usb_adapter * adap,int onoff)888 static int af9005_pid_filter_control(struct dvb_usb_adapter *adap, int onoff)
889 {
890 int ret;
891 deb_info("pid filter control onoff %d\n", onoff);
892 if (onoff) {
893 ret =
894 af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 1);
895 if (ret)
896 return ret;
897 ret =
898 af9005_write_register_bits(adap->dev,
899 XD_MP2IF_DMX_CTRL, 1, 1, 1);
900 if (ret)
901 return ret;
902 ret =
903 af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 1);
904 } else
905 ret =
906 af9005_write_ofdm_register(adap->dev, XD_MP2IF_DMX_CTRL, 0);
907 if (ret)
908 return ret;
909 deb_info("pid filter control ok\n");
910 return 0;
911 }
912
af9005_pid_filter(struct dvb_usb_adapter * adap,int index,u16 pid,int onoff)913 static int af9005_pid_filter(struct dvb_usb_adapter *adap, int index,
914 u16 pid, int onoff)
915 {
916 u8 cmd = index & 0x1f;
917 int ret;
918 deb_info("set pid filter, index %d, pid %x, onoff %d\n", index,
919 pid, onoff);
920 if (onoff) {
921 /* cannot use it as pid_filter_ctrl since it has to be done
922 before setting the first pid */
923 if (adap->feedcount == 1) {
924 deb_info("first pid set, enable pid table\n");
925 ret = af9005_pid_filter_control(adap, onoff);
926 if (ret)
927 return ret;
928 }
929 ret =
930 af9005_write_ofdm_register(adap->dev,
931 XD_MP2IF_PID_DATA_L,
932 (u8) (pid & 0xff));
933 if (ret)
934 return ret;
935 ret =
936 af9005_write_ofdm_register(adap->dev,
937 XD_MP2IF_PID_DATA_H,
938 (u8) (pid >> 8));
939 if (ret)
940 return ret;
941 cmd |= 0x20 | 0x40;
942 } else {
943 if (adap->feedcount == 0) {
944 deb_info("last pid unset, disable pid table\n");
945 ret = af9005_pid_filter_control(adap, onoff);
946 if (ret)
947 return ret;
948 }
949 }
950 ret = af9005_write_ofdm_register(adap->dev, XD_MP2IF_PID_IDX, cmd);
951 if (ret)
952 return ret;
953 deb_info("set pid ok\n");
954 return 0;
955 }
956
af9005_identify_state(struct usb_device * udev,const struct dvb_usb_device_properties * props,const struct dvb_usb_device_description ** desc,int * cold)957 static int af9005_identify_state(struct usb_device *udev,
958 const struct dvb_usb_device_properties *props,
959 const struct dvb_usb_device_description **desc,
960 int *cold)
961 {
962 int ret;
963 u8 reply, *buf;
964
965 buf = kmalloc(FW_BULKOUT_SIZE + 2, GFP_KERNEL);
966 if (!buf)
967 return -ENOMEM;
968
969 ret = af9005_boot_packet(udev, FW_CONFIG, &reply,
970 buf, FW_BULKOUT_SIZE + 2);
971 if (ret)
972 goto err;
973 deb_info("result of FW_CONFIG in identify state %d\n", reply);
974 if (reply == 0x01)
975 *cold = 1;
976 else if (reply == 0x02)
977 *cold = 0;
978 else
979 ret = -EIO;
980 if (!ret)
981 deb_info("Identify state cold = %d\n", *cold);
982
983 err:
984 kfree(buf);
985 return ret;
986 }
987
988 static struct dvb_usb_device_properties af9005_properties;
989
af9005_usb_probe(struct usb_interface * intf,const struct usb_device_id * id)990 static int af9005_usb_probe(struct usb_interface *intf,
991 const struct usb_device_id *id)
992 {
993 return dvb_usb_device_init(intf, &af9005_properties,
994 THIS_MODULE, NULL, adapter_nr);
995 }
996
997 enum {
998 AFATECH_AF9005,
999 TERRATEC_CINERGY_T_USB_XE,
1000 ANSONIC_DVBT_USB,
1001 };
1002
1003 static struct usb_device_id af9005_usb_table[] = {
1004 DVB_USB_DEV(AFATECH, AFATECH_AF9005),
1005 DVB_USB_DEV(TERRATEC, TERRATEC_CINERGY_T_USB_XE),
1006 DVB_USB_DEV(ANSONIC, ANSONIC_DVBT_USB),
1007 { }
1008 };
1009
1010 MODULE_DEVICE_TABLE(usb, af9005_usb_table);
1011
1012 static struct dvb_usb_device_properties af9005_properties = {
1013 .caps = DVB_USB_IS_AN_I2C_ADAPTER,
1014
1015 .usb_ctrl = DEVICE_SPECIFIC,
1016 .firmware = "af9005.fw",
1017 .download_firmware = af9005_download_firmware,
1018 .no_reconnect = 1,
1019
1020 .size_of_priv = sizeof(struct af9005_device_state),
1021
1022 .num_adapters = 1,
1023 .adapter = {
1024 {
1025 .num_frontends = 1,
1026 .fe = {{
1027 .caps =
1028 DVB_USB_ADAP_HAS_PID_FILTER |
1029 DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
1030 .pid_filter_count = 32,
1031 .pid_filter = af9005_pid_filter,
1032 /* .pid_filter_ctrl = af9005_pid_filter_control, */
1033 .frontend_attach = af9005_frontend_attach,
1034 /* .tuner_attach = af9005_tuner_attach, */
1035 /* parameter for the MPEG2-data transfer */
1036 .stream = {
1037 .type = USB_BULK,
1038 .count = 10,
1039 .endpoint = 0x04,
1040 .u = {
1041 .bulk = {
1042 .buffersize = 4096, /* actual size seen is 3948 */
1043 }
1044 }
1045 },
1046 }},
1047 }
1048 },
1049 .power_ctrl = af9005_power_ctrl,
1050 .identify_state = af9005_identify_state,
1051
1052 .i2c_algo = &af9005_i2c_algo,
1053
1054 .rc.legacy = {
1055 .rc_interval = 200,
1056 .rc_map_table = NULL,
1057 .rc_map_size = 0,
1058 .rc_query = af9005_rc_query,
1059 },
1060
1061 .generic_bulk_ctrl_endpoint = 2,
1062 .generic_bulk_ctrl_endpoint_response = 1,
1063
1064 .num_device_descs = 3,
1065 .devices = {
1066 {.name = "Afatech DVB-T USB1.1 stick",
1067 .cold_ids = {&af9005_usb_table[AFATECH_AF9005], NULL},
1068 .warm_ids = {NULL},
1069 },
1070 {.name = "TerraTec Cinergy T USB XE",
1071 .cold_ids = {&af9005_usb_table[TERRATEC_CINERGY_T_USB_XE], NULL},
1072 .warm_ids = {NULL},
1073 },
1074 {.name = "Ansonic DVB-T USB1.1 stick",
1075 .cold_ids = {&af9005_usb_table[ANSONIC_DVBT_USB], NULL},
1076 .warm_ids = {NULL},
1077 },
1078 {NULL},
1079 }
1080 };
1081
1082 /* usb specific object needed to register this driver with the usb subsystem */
1083 static struct usb_driver af9005_usb_driver = {
1084 .name = "dvb_usb_af9005",
1085 .probe = af9005_usb_probe,
1086 .disconnect = dvb_usb_device_exit,
1087 .id_table = af9005_usb_table,
1088 };
1089
1090 /* module stuff */
af9005_usb_module_init(void)1091 static int __init af9005_usb_module_init(void)
1092 {
1093 int result;
1094 if ((result = usb_register(&af9005_usb_driver))) {
1095 err("usb_register failed. (%d)", result);
1096 return result;
1097 }
1098 #if IS_MODULE(CONFIG_DVB_USB_AF9005) || defined(CONFIG_DVB_USB_AF9005_REMOTE)
1099 /* FIXME: convert to todays kernel IR infrastructure */
1100 rc_decode = symbol_request(af9005_rc_decode);
1101 rc_keys = symbol_request(rc_map_af9005_table);
1102 rc_keys_size = symbol_request(rc_map_af9005_table_size);
1103 #endif
1104 if (rc_decode == NULL || rc_keys == NULL || rc_keys_size == NULL) {
1105 err("af9005_rc_decode function not found, disabling remote");
1106 af9005_properties.rc.legacy.rc_query = NULL;
1107 } else {
1108 af9005_properties.rc.legacy.rc_map_table = rc_keys;
1109 af9005_properties.rc.legacy.rc_map_size = *rc_keys_size;
1110 }
1111
1112 return 0;
1113 }
1114
af9005_usb_module_exit(void)1115 static void __exit af9005_usb_module_exit(void)
1116 {
1117 /* release rc decode symbols */
1118 if (rc_decode != NULL)
1119 symbol_put(af9005_rc_decode);
1120 if (rc_keys != NULL)
1121 symbol_put(rc_map_af9005_table);
1122 if (rc_keys_size != NULL)
1123 symbol_put(rc_map_af9005_table_size);
1124 /* deregister this driver from the USB subsystem */
1125 usb_deregister(&af9005_usb_driver);
1126 }
1127
1128 module_init(af9005_usb_module_init);
1129 module_exit(af9005_usb_module_exit);
1130
1131 MODULE_AUTHOR("Luca Olivetti <luca@ventoso.org>");
1132 MODULE_DESCRIPTION("Driver for Afatech 9005 DVB-T USB1.1 stick");
1133 MODULE_VERSION("1.0");
1134 MODULE_LICENSE("GPL");
1135
