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az6007.c
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1 /*
2  * Driver for AzureWave 6007 DVB-C/T USB2.0 and clones
3  *
4  * Copyright (c) Henry Wang <[email protected]>
5  *
6  * This driver was made publicly available by Terratec, at:
7  * http://linux.terratec.de/files/TERRATEC_H7/20110323_TERRATEC_H7_Linux.tar.gz
8  * The original driver's license is GPL, as declared with MODULE_LICENSE()
9  *
10  * Copyright (c) 2010-2012 Mauro Carvalho Chehab <[email protected]>
11  * Driver modified by in order to work with upstream drxk driver, and
12  * tons of bugs got fixed, and converted to use dvb-usb-v2.
13  *
14  * This program is free software; you can redistribute it and/or modify
15  * it under the terms of the GNU General Public License as published by
16  * the Free Software Foundation under version 2 of the License.
17  *
18  * This program is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21  * GNU General Public License for more details.
22  */
23 
24 #include "drxk.h"
25 #include "mt2063.h"
26 #include "dvb_ca_en50221.h"
27 #include "dvb_usb.h"
28 #include "cypress_firmware.h"
29 
30 #define AZ6007_FIRMWARE "dvb-usb-terratec-h7-az6007.fw"
31 
32 static int az6007_xfer_debug;
33 module_param_named(xfer_debug, az6007_xfer_debug, int, 0644);
34 MODULE_PARM_DESC(xfer_debug, "Enable xfer debug");
35 
36 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
37 
38 /* Known requests (Cypress FX2 firmware + az6007 "private" ones*/
39 
40 #define FX2_OED 0xb5
41 #define AZ6007_READ_DATA 0xb7
42 #define AZ6007_I2C_RD 0xb9
43 #define AZ6007_POWER 0xbc
44 #define AZ6007_I2C_WR 0xbd
45 #define FX2_SCON1 0xc0
46 #define AZ6007_TS_THROUGH 0xc7
47 #define AZ6007_READ_IR 0xb4
48 
49 struct az6007_device_state {
50  struct mutex mutex;
51  struct mutex ca_mutex;
52  struct dvb_ca_en50221 ca;
53  unsigned warm:1;
54  int (*gate_ctrl) (struct dvb_frontend *, int);
55  unsigned char data[4096];
56 };
57 
58 static struct drxk_config terratec_h7_drxk = {
59  .adr = 0x29,
60  .parallel_ts = true,
61  .dynamic_clk = true,
62  .single_master = true,
63  .enable_merr_cfg = true,
64  .no_i2c_bridge = false,
65  .chunk_size = 64,
66  .mpeg_out_clk_strength = 0x02,
67  .qam_demod_parameter_count = 2,
68  .microcode_name = "dvb-usb-terratec-h7-drxk.fw",
69 };
70 
71 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
72 {
73  struct az6007_device_state *st = fe_to_priv(fe);
74  struct dvb_usb_adapter *adap = fe->sec_priv;
75  int status = 0;
76 
77  pr_debug("%s: %s\n", __func__, enable ? "enable" : "disable");
78 
79  if (!adap || !st)
80  return -EINVAL;
81 
82  if (enable)
83  status = st->gate_ctrl(fe, 1);
84  else
85  status = st->gate_ctrl(fe, 0);
86 
87  return status;
88 }
89 
90 static struct mt2063_config az6007_mt2063_config = {
91  .tuner_address = 0x60,
92  .refclock = 36125000,
93 };
94 
95 static int __az6007_read(struct usb_device *udev, u8 req, u16 value,
96  u16 index, u8 *b, int blen)
97 {
98  int ret;
99 
100  ret = usb_control_msg(udev,
101  usb_rcvctrlpipe(udev, 0),
102  req,
103  USB_TYPE_VENDOR | USB_DIR_IN,
104  value, index, b, blen, 5000);
105  if (ret < 0) {
106  pr_warn("usb read operation failed. (%d)\n", ret);
107  return -EIO;
108  }
109 
110  if (az6007_xfer_debug) {
111  printk(KERN_DEBUG "az6007: IN req: %02x, value: %04x, index: %04x\n",
112  req, value, index);
113  print_hex_dump_bytes("az6007: payload: ",
114  DUMP_PREFIX_NONE, b, blen);
115  }
116 
117  return ret;
118 }
119 
120 static int az6007_read(struct dvb_usb_device *d, u8 req, u16 value,
121  u16 index, u8 *b, int blen)
122 {
123  struct az6007_device_state *st = d->priv;
124  int ret;
125 
126  if (mutex_lock_interruptible(&st->mutex) < 0)
127  return -EAGAIN;
128 
129  ret = __az6007_read(d->udev, req, value, index, b, blen);
130 
131  mutex_unlock(&st->mutex);
132 
133  return ret;
134 }
135 
136 static int __az6007_write(struct usb_device *udev, u8 req, u16 value,
137  u16 index, u8 *b, int blen)
138 {
139  int ret;
140 
141  if (az6007_xfer_debug) {
142  printk(KERN_DEBUG "az6007: OUT req: %02x, value: %04x, index: %04x\n",
143  req, value, index);
144  print_hex_dump_bytes("az6007: payload: ",
145  DUMP_PREFIX_NONE, b, blen);
146  }
147 
148  if (blen > 64) {
149  pr_err("az6007: tried to write %d bytes, but I2C max size is 64 bytes\n",
150  blen);
151  return -EOPNOTSUPP;
152  }
153 
154  ret = usb_control_msg(udev,
155  usb_sndctrlpipe(udev, 0),
156  req,
157  USB_TYPE_VENDOR | USB_DIR_OUT,
158  value, index, b, blen, 5000);
159  if (ret != blen) {
160  pr_err("usb write operation failed. (%d)\n", ret);
161  return -EIO;
162  }
163 
164  return 0;
165 }
166 
167 static int az6007_write(struct dvb_usb_device *d, u8 req, u16 value,
168  u16 index, u8 *b, int blen)
169 {
170  struct az6007_device_state *st = d->priv;
171  int ret;
172 
173  if (mutex_lock_interruptible(&st->mutex) < 0)
174  return -EAGAIN;
175 
176  ret = __az6007_write(d->udev, req, value, index, b, blen);
177 
178  mutex_unlock(&st->mutex);
179 
180  return ret;
181 }
182 
183 static int az6007_streaming_ctrl(struct dvb_frontend *fe, int onoff)
184 {
185  struct dvb_usb_device *d = fe_to_d(fe);
186 
187  pr_debug("%s: %s\n", __func__, onoff ? "enable" : "disable");
188 
189  return az6007_write(d, 0xbc, onoff, 0, NULL, 0);
190 }
191 
192 /* remote control stuff (does not work with my box) */
193 static int az6007_rc_query(struct dvb_usb_device *d)
194 {
195  struct az6007_device_state *st = d_to_priv(d);
196  unsigned code = 0;
197 
198  az6007_read(d, AZ6007_READ_IR, 0, 0, st->data, 10);
199 
200  if (st->data[1] == 0x44)
201  return 0;
202 
203  if ((st->data[1] ^ st->data[2]) == 0xff)
204  code = st->data[1];
205  else
206  code = st->data[1] << 8 | st->data[2];
207 
208  if ((st->data[3] ^ st->data[4]) == 0xff)
209  code = code << 8 | st->data[3];
210  else
211  code = code << 16 | st->data[3] << 8 | st->data[4];
212 
213  rc_keydown(d->rc_dev, code, st->data[5]);
214 
215  return 0;
216 }
217 
218 static int az6007_ci_read_attribute_mem(struct dvb_ca_en50221 *ca,
219  int slot,
220  int address)
221 {
222  struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
223  struct az6007_device_state *state = d_to_priv(d);
224 
225  int ret;
226  u8 req;
227  u16 value;
228  u16 index;
229  int blen;
230  u8 *b;
231 
232  if (slot != 0)
233  return -EINVAL;
234 
235  b = kmalloc(12, GFP_KERNEL);
236  if (!b)
237  return -ENOMEM;
238 
239  mutex_lock(&state->ca_mutex);
240 
241  req = 0xC1;
242  value = address;
243  index = 0;
244  blen = 1;
245 
246  ret = az6007_read(d, req, value, index, b, blen);
247  if (ret < 0) {
248  pr_warn("usb in operation failed. (%d)\n", ret);
249  ret = -EINVAL;
250  } else {
251  ret = b[0];
252  }
253 
254  mutex_unlock(&state->ca_mutex);
255  kfree(b);
256  return ret;
257 }
258 
259 static int az6007_ci_write_attribute_mem(struct dvb_ca_en50221 *ca,
260  int slot,
261  int address,
262  u8 value)
263 {
264  struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
265  struct az6007_device_state *state = d_to_priv(d);
266 
267  int ret;
268  u8 req;
269  u16 value1;
270  u16 index;
271  int blen;
272 
273  pr_debug("%s(), slot %d\n", __func__, slot);
274  if (slot != 0)
275  return -EINVAL;
276 
277  mutex_lock(&state->ca_mutex);
278  req = 0xC2;
279  value1 = address;
280  index = value;
281  blen = 0;
282 
283  ret = az6007_write(d, req, value1, index, NULL, blen);
284  if (ret != 0)
285  pr_warn("usb out operation failed. (%d)\n", ret);
286 
287  mutex_unlock(&state->ca_mutex);
288  return ret;
289 }
290 
291 static int az6007_ci_read_cam_control(struct dvb_ca_en50221 *ca,
292  int slot,
293  u8 address)
294 {
295  struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
296  struct az6007_device_state *state = d_to_priv(d);
297 
298  int ret;
299  u8 req;
300  u16 value;
301  u16 index;
302  int blen;
303  u8 *b;
304 
305  if (slot != 0)
306  return -EINVAL;
307 
308  b = kmalloc(12, GFP_KERNEL);
309  if (!b)
310  return -ENOMEM;
311 
312  mutex_lock(&state->ca_mutex);
313 
314  req = 0xC3;
315  value = address;
316  index = 0;
317  blen = 2;
318 
319  ret = az6007_read(d, req, value, index, b, blen);
320  if (ret < 0) {
321  pr_warn("usb in operation failed. (%d)\n", ret);
322  ret = -EINVAL;
323  } else {
324  if (b[0] == 0)
325  pr_warn("Read CI IO error\n");
326 
327  ret = b[1];
328  pr_debug("read cam data = %x from 0x%x\n", b[1], value);
329  }
330 
331  mutex_unlock(&state->ca_mutex);
332  kfree(b);
333  return ret;
334 }
335 
336 static int az6007_ci_write_cam_control(struct dvb_ca_en50221 *ca,
337  int slot,
338  u8 address,
339  u8 value)
340 {
341  struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
342  struct az6007_device_state *state = d_to_priv(d);
343 
344  int ret;
345  u8 req;
346  u16 value1;
347  u16 index;
348  int blen;
349 
350  if (slot != 0)
351  return -EINVAL;
352 
353  mutex_lock(&state->ca_mutex);
354  req = 0xC4;
355  value1 = address;
356  index = value;
357  blen = 0;
358 
359  ret = az6007_write(d, req, value1, index, NULL, blen);
360  if (ret != 0) {
361  pr_warn("usb out operation failed. (%d)\n", ret);
362  goto failed;
363  }
364 
365 failed:
366  mutex_unlock(&state->ca_mutex);
367  return ret;
368 }
369 
370 static int CI_CamReady(struct dvb_ca_en50221 *ca, int slot)
371 {
372  struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
373 
374  int ret;
375  u8 req;
376  u16 value;
377  u16 index;
378  int blen;
379  u8 *b;
380 
381  b = kmalloc(12, GFP_KERNEL);
382  if (!b)
383  return -ENOMEM;
384 
385  req = 0xC8;
386  value = 0;
387  index = 0;
388  blen = 1;
389 
390  ret = az6007_read(d, req, value, index, b, blen);
391  if (ret < 0) {
392  pr_warn("usb in operation failed. (%d)\n", ret);
393  ret = -EIO;
394  } else{
395  ret = b[0];
396  }
397  kfree(b);
398  return ret;
399 }
400 
401 static int az6007_ci_slot_reset(struct dvb_ca_en50221 *ca, int slot)
402 {
403  struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
404  struct az6007_device_state *state = d_to_priv(d);
405 
406  int ret, i;
407  u8 req;
408  u16 value;
409  u16 index;
410  int blen;
411 
412  mutex_lock(&state->ca_mutex);
413 
414  req = 0xC6;
415  value = 1;
416  index = 0;
417  blen = 0;
418 
419  ret = az6007_write(d, req, value, index, NULL, blen);
420  if (ret != 0) {
421  pr_warn("usb out operation failed. (%d)\n", ret);
422  goto failed;
423  }
424 
425  msleep(500);
426  req = 0xC6;
427  value = 0;
428  index = 0;
429  blen = 0;
430 
431  ret = az6007_write(d, req, value, index, NULL, blen);
432  if (ret != 0) {
433  pr_warn("usb out operation failed. (%d)\n", ret);
434  goto failed;
435  }
436 
437  for (i = 0; i < 15; i++) {
438  msleep(100);
439 
440  if (CI_CamReady(ca, slot)) {
441  pr_debug("CAM Ready\n");
442  break;
443  }
444  }
445  msleep(5000);
446 
447 failed:
448  mutex_unlock(&state->ca_mutex);
449  return ret;
450 }
451 
452 static int az6007_ci_slot_shutdown(struct dvb_ca_en50221 *ca, int slot)
453 {
454  return 0;
455 }
456 
457 static int az6007_ci_slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
458 {
459  struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
460  struct az6007_device_state *state = d_to_priv(d);
461 
462  int ret;
463  u8 req;
464  u16 value;
465  u16 index;
466  int blen;
467 
468  pr_debug("%s()\n", __func__);
469  mutex_lock(&state->ca_mutex);
470  req = 0xC7;
471  value = 1;
472  index = 0;
473  blen = 0;
474 
475  ret = az6007_write(d, req, value, index, NULL, blen);
476  if (ret != 0) {
477  pr_warn("usb out operation failed. (%d)\n", ret);
478  goto failed;
479  }
480 
481 failed:
482  mutex_unlock(&state->ca_mutex);
483  return ret;
484 }
485 
486 static int az6007_ci_poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open)
487 {
488  struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
489  struct az6007_device_state *state = d_to_priv(d);
490  int ret;
491  u8 req;
492  u16 value;
493  u16 index;
494  int blen;
495  u8 *b;
496 
497  b = kmalloc(12, GFP_KERNEL);
498  if (!b)
499  return -ENOMEM;
500  mutex_lock(&state->ca_mutex);
501 
502  req = 0xC5;
503  value = 0;
504  index = 0;
505  blen = 1;
506 
507  ret = az6007_read(d, req, value, index, b, blen);
508  if (ret < 0) {
509  pr_warn("usb in operation failed. (%d)\n", ret);
510  ret = -EIO;
511  } else
512  ret = 0;
513 
514  if (!ret && b[0] == 1) {
515  ret = DVB_CA_EN50221_POLL_CAM_PRESENT |
516  DVB_CA_EN50221_POLL_CAM_READY;
517  }
518 
519  mutex_unlock(&state->ca_mutex);
520  kfree(b);
521  return ret;
522 }
523 
524 
525 static void az6007_ci_uninit(struct dvb_usb_device *d)
526 {
527  struct az6007_device_state *state;
528 
529  pr_debug("%s()\n", __func__);
530 
531  if (NULL == d)
532  return;
533 
534  state = d_to_priv(d);
535  if (NULL == state)
536  return;
537 
538  if (NULL == state->ca.data)
539  return;
540 
541  dvb_ca_en50221_release(&state->ca);
542 
543  memset(&state->ca, 0, sizeof(state->ca));
544 }
545 
546 
547 static int az6007_ci_init(struct dvb_usb_adapter *adap)
548 {
549  struct dvb_usb_device *d = adap_to_d(adap);
550  struct az6007_device_state *state = adap_to_priv(adap);
551  int ret;
552 
553  pr_debug("%s()\n", __func__);
554 
555  mutex_init(&state->ca_mutex);
556  state->ca.owner = THIS_MODULE;
557  state->ca.read_attribute_mem = az6007_ci_read_attribute_mem;
558  state->ca.write_attribute_mem = az6007_ci_write_attribute_mem;
559  state->ca.read_cam_control = az6007_ci_read_cam_control;
560  state->ca.write_cam_control = az6007_ci_write_cam_control;
561  state->ca.slot_reset = az6007_ci_slot_reset;
562  state->ca.slot_shutdown = az6007_ci_slot_shutdown;
563  state->ca.slot_ts_enable = az6007_ci_slot_ts_enable;
564  state->ca.poll_slot_status = az6007_ci_poll_slot_status;
565  state->ca.data = d;
566 
567  ret = dvb_ca_en50221_init(&adap->dvb_adap,
568  &state->ca,
569  0, /* flags */
570  1);/* n_slots */
571  if (ret != 0) {
572  pr_err("Cannot initialize CI: Error %d.\n", ret);
573  memset(&state->ca, 0, sizeof(state->ca));
574  return ret;
575  }
576 
577  pr_debug("CI initialized.\n");
578 
579  return 0;
580 }
581 
582 static int az6007_read_mac_addr(struct dvb_usb_adapter *adap, u8 mac[6])
583 {
584  struct dvb_usb_device *d = adap_to_d(adap);
585  struct az6007_device_state *st = adap_to_priv(adap);
586  int ret;
587 
588  ret = az6007_read(d, AZ6007_READ_DATA, 6, 0, st->data, 6);
589  memcpy(mac, st->data, 6);
590 
591  if (ret > 0)
592  pr_debug("%s: mac is %pM\n", __func__, mac);
593 
594  return ret;
595 }
596 
597 static int az6007_frontend_attach(struct dvb_usb_adapter *adap)
598 {
599  struct az6007_device_state *st = adap_to_priv(adap);
600  struct dvb_usb_device *d = adap_to_d(adap);
601 
602  pr_debug("attaching demod drxk\n");
603 
604  adap->fe[0] = dvb_attach(drxk_attach, &terratec_h7_drxk,
605  &d->i2c_adap);
606  if (!adap->fe[0])
607  return -EINVAL;
608 
609  adap->fe[0]->sec_priv = adap;
610  st->gate_ctrl = adap->fe[0]->ops.i2c_gate_ctrl;
611  adap->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
612 
613  az6007_ci_init(adap);
614 
615  return 0;
616 }
617 
618 static int az6007_tuner_attach(struct dvb_usb_adapter *adap)
619 {
620  struct dvb_usb_device *d = adap_to_d(adap);
621 
622  pr_debug("attaching tuner mt2063\n");
623 
624  /* Attach mt2063 to DVB-C frontend */
625  if (adap->fe[0]->ops.i2c_gate_ctrl)
626  adap->fe[0]->ops.i2c_gate_ctrl(adap->fe[0], 1);
627  if (!dvb_attach(mt2063_attach, adap->fe[0],
628  &az6007_mt2063_config,
629  &d->i2c_adap))
630  return -EINVAL;
631 
632  if (adap->fe[0]->ops.i2c_gate_ctrl)
633  adap->fe[0]->ops.i2c_gate_ctrl(adap->fe[0], 0);
634 
635  return 0;
636 }
637 
638 static int az6007_power_ctrl(struct dvb_usb_device *d, int onoff)
639 {
640  struct az6007_device_state *state = d_to_priv(d);
641  int ret;
642 
643  pr_debug("%s()\n", __func__);
644 
645  if (!state->warm) {
646  mutex_init(&state->mutex);
647 
648  ret = az6007_write(d, AZ6007_POWER, 0, 2, NULL, 0);
649  if (ret < 0)
650  return ret;
651  msleep(60);
652  ret = az6007_write(d, AZ6007_POWER, 1, 4, NULL, 0);
653  if (ret < 0)
654  return ret;
655  msleep(100);
656  ret = az6007_write(d, AZ6007_POWER, 1, 3, NULL, 0);
657  if (ret < 0)
658  return ret;
659  msleep(20);
660  ret = az6007_write(d, AZ6007_POWER, 1, 4, NULL, 0);
661  if (ret < 0)
662  return ret;
663 
664  msleep(400);
665  ret = az6007_write(d, FX2_SCON1, 0, 3, NULL, 0);
666  if (ret < 0)
667  return ret;
668  msleep(150);
669  ret = az6007_write(d, FX2_SCON1, 1, 3, NULL, 0);
670  if (ret < 0)
671  return ret;
672  msleep(430);
673  ret = az6007_write(d, AZ6007_POWER, 0, 0, NULL, 0);
674  if (ret < 0)
675  return ret;
676 
677  state->warm = true;
678 
679  return 0;
680  }
681 
682  if (!onoff)
683  return 0;
684 
685  az6007_write(d, AZ6007_POWER, 0, 0, NULL, 0);
686  az6007_write(d, AZ6007_TS_THROUGH, 0, 0, NULL, 0);
687 
688  return 0;
689 }
690 
691 /* I2C */
692 static int az6007_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
693  int num)
694 {
695  struct dvb_usb_device *d = i2c_get_adapdata(adap);
696  struct az6007_device_state *st = d_to_priv(d);
697  int i, j, len;
698  int ret = 0;
699  u16 index;
700  u16 value;
701  int length;
702  u8 req, addr;
703 
704  if (mutex_lock_interruptible(&st->mutex) < 0)
705  return -EAGAIN;
706 
707  for (i = 0; i < num; i++) {
708  addr = msgs[i].addr << 1;
709  if (((i + 1) < num)
710  && (msgs[i].len == 1)
711  && ((msgs[i].flags & I2C_M_RD) != I2C_M_RD)
712  && (msgs[i + 1].flags & I2C_M_RD)
713  && (msgs[i].addr == msgs[i + 1].addr)) {
714  /*
715  * A write + read xfer for the same address, where
716  * the first xfer has just 1 byte length.
717  * Need to join both into one operation
718  */
719  if (az6007_xfer_debug)
720  printk(KERN_DEBUG "az6007: I2C W/R addr=0x%x len=%d/%d\n",
721  addr, msgs[i].len, msgs[i + 1].len);
722  req = AZ6007_I2C_RD;
723  index = msgs[i].buf[0];
724  value = addr | (1 << 8);
725  length = 6 + msgs[i + 1].len;
726  len = msgs[i + 1].len;
727  ret = __az6007_read(d->udev, req, value, index,
728  st->data, length);
729  if (ret >= len) {
730  for (j = 0; j < len; j++)
731  msgs[i + 1].buf[j] = st->data[j + 5];
732  } else
733  ret = -EIO;
734  i++;
735  } else if (!(msgs[i].flags & I2C_M_RD)) {
736  /* write bytes */
737  if (az6007_xfer_debug)
738  printk(KERN_DEBUG "az6007: I2C W addr=0x%x len=%d\n",
739  addr, msgs[i].len);
740  req = AZ6007_I2C_WR;
741  index = msgs[i].buf[0];
742  value = addr | (1 << 8);
743  length = msgs[i].len - 1;
744  len = msgs[i].len - 1;
745  for (j = 0; j < len; j++)
746  st->data[j] = msgs[i].buf[j + 1];
747  ret = __az6007_write(d->udev, req, value, index,
748  st->data, length);
749  } else {
750  /* read bytes */
751  if (az6007_xfer_debug)
752  printk(KERN_DEBUG "az6007: I2C R addr=0x%x len=%d\n",
753  addr, msgs[i].len);
754  req = AZ6007_I2C_RD;
755  index = msgs[i].buf[0];
756  value = addr;
757  length = msgs[i].len + 6;
758  len = msgs[i].len;
759  ret = __az6007_read(d->udev, req, value, index,
760  st->data, length);
761  for (j = 0; j < len; j++)
762  msgs[i].buf[j] = st->data[j + 5];
763  }
764  if (ret < 0)
765  goto err;
766  }
767 err:
768  mutex_unlock(&st->mutex);
769 
770  if (ret < 0) {
771  pr_info("%s ERROR: %i\n", __func__, ret);
772  return ret;
773  }
774  return num;
775 }
776 
777 static u32 az6007_i2c_func(struct i2c_adapter *adapter)
778 {
779  return I2C_FUNC_I2C;
780 }
781 
782 static struct i2c_algorithm az6007_i2c_algo = {
783  .master_xfer = az6007_i2c_xfer,
784  .functionality = az6007_i2c_func,
785 };
786 
787 static int az6007_identify_state(struct dvb_usb_device *d, const char **name)
788 {
789  int ret;
790  u8 *mac;
791 
792  pr_debug("Identifying az6007 state\n");
793 
794  mac = kmalloc(6, GFP_ATOMIC);
795  if (!mac)
796  return -ENOMEM;
797 
798  /* Try to read the mac address */
799  ret = __az6007_read(d->udev, AZ6007_READ_DATA, 6, 0, mac, 6);
800  if (ret == 6)
801  ret = WARM;
802  else
803  ret = COLD;
804 
805  kfree(mac);
806 
807  if (ret == COLD) {
808  __az6007_write(d->udev, 0x09, 1, 0, NULL, 0);
809  __az6007_write(d->udev, 0x00, 0, 0, NULL, 0);
810  __az6007_write(d->udev, 0x00, 0, 0, NULL, 0);
811  }
812 
813  pr_debug("Device is on %s state\n",
814  ret == WARM ? "warm" : "cold");
815  return ret;
816 }
817 
818 static void az6007_usb_disconnect(struct usb_interface *intf)
819 {
820  struct dvb_usb_device *d = usb_get_intfdata(intf);
821  az6007_ci_uninit(d);
822  dvb_usbv2_disconnect(intf);
823 }
824 
825 static int az6007_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
826 {
827  pr_debug("Getting az6007 Remote Control properties\n");
828 
829  rc->allowed_protos = RC_TYPE_NEC;
830  rc->query = az6007_rc_query;
831  rc->interval = 400;
832 
833  return 0;
834 }
835 
836 static int az6007_download_firmware(struct dvb_usb_device *d,
837  const struct firmware *fw)
838 {
839  pr_debug("Loading az6007 firmware\n");
840 
841  return usbv2_cypress_load_firmware(d->udev, fw, CYPRESS_FX2);
842 }
843 
844 /* DVB USB Driver stuff */
845 static struct dvb_usb_device_properties az6007_props = {
846  .driver_name = KBUILD_MODNAME,
847  .owner = THIS_MODULE,
848  .firmware = AZ6007_FIRMWARE,
849 
850  .adapter_nr = adapter_nr,
851  .size_of_priv = sizeof(struct az6007_device_state),
852  .i2c_algo = &az6007_i2c_algo,
853  .tuner_attach = az6007_tuner_attach,
854  .frontend_attach = az6007_frontend_attach,
855  .streaming_ctrl = az6007_streaming_ctrl,
856  .get_rc_config = az6007_get_rc_config,
857  .read_mac_address = az6007_read_mac_addr,
858  .download_firmware = az6007_download_firmware,
859  .identify_state = az6007_identify_state,
860  .power_ctrl = az6007_power_ctrl,
861  .num_adapters = 1,
862  .adapter = {
863  { .stream = DVB_USB_STREAM_BULK(0x02, 10, 4096), }
864  }
865 };
866 
867 static struct usb_device_id az6007_usb_table[] = {
868  {DVB_USB_DEVICE(USB_VID_AZUREWAVE, USB_PID_AZUREWAVE_6007,
869  &az6007_props, "Azurewave 6007", RC_MAP_EMPTY)},
870  {DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_H7,
871  &az6007_props, "Terratec H7", RC_MAP_NEC_TERRATEC_CINERGY_XS)},
872  {DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_H7_2,
873  &az6007_props, "Terratec H7", RC_MAP_NEC_TERRATEC_CINERGY_XS)},
874  {0},
875 };
876 
877 MODULE_DEVICE_TABLE(usb, az6007_usb_table);
878 
879 static int az6007_suspend(struct usb_interface *intf, pm_message_t msg)
880 {
881  struct dvb_usb_device *d = usb_get_intfdata(intf);
882 
883  az6007_ci_uninit(d);
884  return dvb_usbv2_suspend(intf, msg);
885 }
886 
887 static int az6007_resume(struct usb_interface *intf)
888 {
889  struct dvb_usb_device *d = usb_get_intfdata(intf);
890  struct dvb_usb_adapter *adap = &d->adapter[0];
891 
892  az6007_ci_init(adap);
893  return dvb_usbv2_resume(intf);
894 }
895 
896 /* usb specific object needed to register this driver with the usb subsystem */
897 static struct usb_driver az6007_usb_driver = {
898  .name = KBUILD_MODNAME,
899  .id_table = az6007_usb_table,
900  .probe = dvb_usbv2_probe,
901  .disconnect = az6007_usb_disconnect,
902  .no_dynamic_id = 1,
903  .soft_unbind = 1,
904  /*
905  * FIXME: need to implement reset_resume, likely with
906  * dvb-usb-v2 core support
907  */
908  .suspend = az6007_suspend,
909  .resume = az6007_resume,
910 };
911 
912 module_usb_driver(az6007_usb_driver);
913 
914 MODULE_AUTHOR("Henry Wang <[email protected]>");
915 MODULE_AUTHOR("Mauro Carvalho Chehab <[email protected]>");
916 MODULE_DESCRIPTION("Driver for AzureWave 6007 DVB-C/T USB2.0 and clones");
917 MODULE_VERSION("2.0");
918 MODULE_LICENSE("GPL");
919 MODULE_FIRMWARE(AZ6007_FIRMWARE);
Generated on Thu Jan 10 2013 13:51:10 for Linux Kernel by   doxygen 1.8.2