Version:  2.0.40 2.2.26 2.4.37 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10

Linux/drivers/media/usb/dvb-usb-v2/az6007.c

  1 /*
  2  * Driver for AzureWave 6007 DVB-C/T USB2.0 and clones
  3  *
  4  * Copyright (c) Henry Wang <Henry.wang@AzureWave.com>
  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
 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 struct drxk_config cablestar_hdci_drxk = {
 72         .adr = 0x29,
 73         .parallel_ts = true,
 74         .dynamic_clk = true,
 75         .single_master = true,
 76         .enable_merr_cfg = true,
 77         .no_i2c_bridge = false,
 78         .chunk_size = 64,
 79         .mpeg_out_clk_strength = 0x02,
 80         .qam_demod_parameter_count = 2,
 81         .microcode_name = "dvb-usb-technisat-cablestar-hdci-drxk.fw",
 82 };
 83 
 84 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 85 {
 86         struct az6007_device_state *st = fe_to_priv(fe);
 87         struct dvb_usb_adapter *adap = fe->sec_priv;
 88         int status = 0;
 89 
 90         pr_debug("%s: %s\n", __func__, enable ? "enable" : "disable");
 91 
 92         if (!adap || !st)
 93                 return -EINVAL;
 94 
 95         if (enable)
 96                 status = st->gate_ctrl(fe, 1);
 97         else
 98                 status = st->gate_ctrl(fe, 0);
 99 
100         return status;
101 }
102 
103 static struct mt2063_config az6007_mt2063_config = {
104         .tuner_address = 0x60,
105         .refclock = 36125000,
106 };
107 
108 static int __az6007_read(struct usb_device *udev, u8 req, u16 value,
109                             u16 index, u8 *b, int blen)
110 {
111         int ret;
112 
113         ret = usb_control_msg(udev,
114                               usb_rcvctrlpipe(udev, 0),
115                               req,
116                               USB_TYPE_VENDOR | USB_DIR_IN,
117                               value, index, b, blen, 5000);
118         if (ret < 0) {
119                 pr_warn("usb read operation failed. (%d)\n", ret);
120                 return -EIO;
121         }
122 
123         if (az6007_xfer_debug) {
124                 printk(KERN_DEBUG "az6007: IN  req: %02x, value: %04x, index: %04x\n",
125                        req, value, index);
126                 print_hex_dump_bytes("az6007: payload: ",
127                                      DUMP_PREFIX_NONE, b, blen);
128         }
129 
130         return ret;
131 }
132 
133 static int az6007_read(struct dvb_usb_device *d, u8 req, u16 value,
134                             u16 index, u8 *b, int blen)
135 {
136         struct az6007_device_state *st = d->priv;
137         int ret;
138 
139         if (mutex_lock_interruptible(&st->mutex) < 0)
140                 return -EAGAIN;
141 
142         ret = __az6007_read(d->udev, req, value, index, b, blen);
143 
144         mutex_unlock(&st->mutex);
145 
146         return ret;
147 }
148 
149 static int __az6007_write(struct usb_device *udev, u8 req, u16 value,
150                              u16 index, u8 *b, int blen)
151 {
152         int ret;
153 
154         if (az6007_xfer_debug) {
155                 printk(KERN_DEBUG "az6007: OUT req: %02x, value: %04x, index: %04x\n",
156                        req, value, index);
157                 print_hex_dump_bytes("az6007: payload: ",
158                                      DUMP_PREFIX_NONE, b, blen);
159         }
160 
161         if (blen > 64) {
162                 pr_err("az6007: tried to write %d bytes, but I2C max size is 64 bytes\n",
163                        blen);
164                 return -EOPNOTSUPP;
165         }
166 
167         ret = usb_control_msg(udev,
168                               usb_sndctrlpipe(udev, 0),
169                               req,
170                               USB_TYPE_VENDOR | USB_DIR_OUT,
171                               value, index, b, blen, 5000);
172         if (ret != blen) {
173                 pr_err("usb write operation failed. (%d)\n", ret);
174                 return -EIO;
175         }
176 
177         return 0;
178 }
179 
180 static int az6007_write(struct dvb_usb_device *d, u8 req, u16 value,
181                             u16 index, u8 *b, int blen)
182 {
183         struct az6007_device_state *st = d->priv;
184         int ret;
185 
186         if (mutex_lock_interruptible(&st->mutex) < 0)
187                 return -EAGAIN;
188 
189         ret = __az6007_write(d->udev, req, value, index, b, blen);
190 
191         mutex_unlock(&st->mutex);
192 
193         return ret;
194 }
195 
196 static int az6007_streaming_ctrl(struct dvb_frontend *fe, int onoff)
197 {
198         struct dvb_usb_device *d = fe_to_d(fe);
199 
200         pr_debug("%s: %s\n", __func__, onoff ? "enable" : "disable");
201 
202         return az6007_write(d, 0xbc, onoff, 0, NULL, 0);
203 }
204 
205 #if IS_ENABLED(CONFIG_RC_CORE)
206 /* remote control stuff (does not work with my box) */
207 static int az6007_rc_query(struct dvb_usb_device *d)
208 {
209         struct az6007_device_state *st = d_to_priv(d);
210         unsigned code;
211         enum rc_type proto;
212 
213         az6007_read(d, AZ6007_READ_IR, 0, 0, st->data, 10);
214 
215         if (st->data[1] == 0x44)
216                 return 0;
217 
218         if ((st->data[3] ^ st->data[4]) == 0xff) {
219                 if ((st->data[1] ^ st->data[2]) == 0xff) {
220                         code = RC_SCANCODE_NEC(st->data[1], st->data[3]);
221                         proto = RC_TYPE_NEC;
222                 } else {
223                         code = RC_SCANCODE_NECX(st->data[1] << 8 | st->data[2],
224                                                 st->data[3]);
225                         proto = RC_TYPE_NECX;
226                 }
227         } else {
228                 code = RC_SCANCODE_NEC32(st->data[1] << 24 |
229                                          st->data[2] << 16 |
230                                          st->data[3] << 8  |
231                                          st->data[4]);
232                 proto = RC_TYPE_NEC32;
233         }
234 
235         rc_keydown(d->rc_dev, proto, code, st->data[5]);
236 
237         return 0;
238 }
239 
240 static int az6007_get_rc_config(struct dvb_usb_device *d, struct dvb_usb_rc *rc)
241 {
242         pr_debug("Getting az6007 Remote Control properties\n");
243 
244         rc->allowed_protos = RC_BIT_NEC | RC_BIT_NECX | RC_BIT_NEC32;
245         rc->query          = az6007_rc_query;
246         rc->interval       = 400;
247 
248         return 0;
249 }
250 #else
251         #define az6007_get_rc_config NULL
252 #endif
253 
254 static int az6007_ci_read_attribute_mem(struct dvb_ca_en50221 *ca,
255                                         int slot,
256                                         int address)
257 {
258         struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
259         struct az6007_device_state *state = d_to_priv(d);
260 
261         int ret;
262         u8 req;
263         u16 value;
264         u16 index;
265         int blen;
266         u8 *b;
267 
268         if (slot != 0)
269                 return -EINVAL;
270 
271         b = kmalloc(12, GFP_KERNEL);
272         if (!b)
273                 return -ENOMEM;
274 
275         mutex_lock(&state->ca_mutex);
276 
277         req = 0xC1;
278         value = address;
279         index = 0;
280         blen = 1;
281 
282         ret = az6007_read(d, req, value, index, b, blen);
283         if (ret < 0) {
284                 pr_warn("usb in operation failed. (%d)\n", ret);
285                 ret = -EINVAL;
286         } else {
287                 ret = b[0];
288         }
289 
290         mutex_unlock(&state->ca_mutex);
291         kfree(b);
292         return ret;
293 }
294 
295 static int az6007_ci_write_attribute_mem(struct dvb_ca_en50221 *ca,
296                                          int slot,
297                                          int address,
298                                          u8 value)
299 {
300         struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
301         struct az6007_device_state *state = d_to_priv(d);
302 
303         int ret;
304         u8 req;
305         u16 value1;
306         u16 index;
307         int blen;
308 
309         pr_debug("%s(), slot %d\n", __func__, slot);
310         if (slot != 0)
311                 return -EINVAL;
312 
313         mutex_lock(&state->ca_mutex);
314         req = 0xC2;
315         value1 = address;
316         index = value;
317         blen = 0;
318 
319         ret = az6007_write(d, req, value1, index, NULL, blen);
320         if (ret != 0)
321                 pr_warn("usb out operation failed. (%d)\n", ret);
322 
323         mutex_unlock(&state->ca_mutex);
324         return ret;
325 }
326 
327 static int az6007_ci_read_cam_control(struct dvb_ca_en50221 *ca,
328                                       int slot,
329                                       u8 address)
330 {
331         struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
332         struct az6007_device_state *state = d_to_priv(d);
333 
334         int ret;
335         u8 req;
336         u16 value;
337         u16 index;
338         int blen;
339         u8 *b;
340 
341         if (slot != 0)
342                 return -EINVAL;
343 
344         b = kmalloc(12, GFP_KERNEL);
345         if (!b)
346                 return -ENOMEM;
347 
348         mutex_lock(&state->ca_mutex);
349 
350         req = 0xC3;
351         value = address;
352         index = 0;
353         blen = 2;
354 
355         ret = az6007_read(d, req, value, index, b, blen);
356         if (ret < 0) {
357                 pr_warn("usb in operation failed. (%d)\n", ret);
358                 ret = -EINVAL;
359         } else {
360                 if (b[0] == 0)
361                         pr_warn("Read CI IO error\n");
362 
363                 ret = b[1];
364                 pr_debug("read cam data = %x from 0x%x\n", b[1], value);
365         }
366 
367         mutex_unlock(&state->ca_mutex);
368         kfree(b);
369         return ret;
370 }
371 
372 static int az6007_ci_write_cam_control(struct dvb_ca_en50221 *ca,
373                                        int slot,
374                                        u8 address,
375                                        u8 value)
376 {
377         struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
378         struct az6007_device_state *state = d_to_priv(d);
379 
380         int ret;
381         u8 req;
382         u16 value1;
383         u16 index;
384         int blen;
385 
386         if (slot != 0)
387                 return -EINVAL;
388 
389         mutex_lock(&state->ca_mutex);
390         req = 0xC4;
391         value1 = address;
392         index = value;
393         blen = 0;
394 
395         ret = az6007_write(d, req, value1, index, NULL, blen);
396         if (ret != 0) {
397                 pr_warn("usb out operation failed. (%d)\n", ret);
398                 goto failed;
399         }
400 
401 failed:
402         mutex_unlock(&state->ca_mutex);
403         return ret;
404 }
405 
406 static int CI_CamReady(struct dvb_ca_en50221 *ca, int slot)
407 {
408         struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
409 
410         int ret;
411         u8 req;
412         u16 value;
413         u16 index;
414         int blen;
415         u8 *b;
416 
417         b = kmalloc(12, GFP_KERNEL);
418         if (!b)
419                 return -ENOMEM;
420 
421         req = 0xC8;
422         value = 0;
423         index = 0;
424         blen = 1;
425 
426         ret = az6007_read(d, req, value, index, b, blen);
427         if (ret < 0) {
428                 pr_warn("usb in operation failed. (%d)\n", ret);
429                 ret = -EIO;
430         } else{
431                 ret = b[0];
432         }
433         kfree(b);
434         return ret;
435 }
436 
437 static int az6007_ci_slot_reset(struct dvb_ca_en50221 *ca, int slot)
438 {
439         struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
440         struct az6007_device_state *state = d_to_priv(d);
441 
442         int ret, i;
443         u8 req;
444         u16 value;
445         u16 index;
446         int blen;
447 
448         mutex_lock(&state->ca_mutex);
449 
450         req = 0xC6;
451         value = 1;
452         index = 0;
453         blen = 0;
454 
455         ret = az6007_write(d, req, value, index, NULL, blen);
456         if (ret != 0) {
457                 pr_warn("usb out operation failed. (%d)\n", ret);
458                 goto failed;
459         }
460 
461         msleep(500);
462         req = 0xC6;
463         value = 0;
464         index = 0;
465         blen = 0;
466 
467         ret = az6007_write(d, req, value, index, NULL, blen);
468         if (ret != 0) {
469                 pr_warn("usb out operation failed. (%d)\n", ret);
470                 goto failed;
471         }
472 
473         for (i = 0; i < 15; i++) {
474                 msleep(100);
475 
476                 if (CI_CamReady(ca, slot)) {
477                         pr_debug("CAM Ready\n");
478                         break;
479                 }
480         }
481         msleep(5000);
482 
483 failed:
484         mutex_unlock(&state->ca_mutex);
485         return ret;
486 }
487 
488 static int az6007_ci_slot_shutdown(struct dvb_ca_en50221 *ca, int slot)
489 {
490         return 0;
491 }
492 
493 static int az6007_ci_slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
494 {
495         struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
496         struct az6007_device_state *state = d_to_priv(d);
497 
498         int ret;
499         u8 req;
500         u16 value;
501         u16 index;
502         int blen;
503 
504         pr_debug("%s()\n", __func__);
505         mutex_lock(&state->ca_mutex);
506         req = 0xC7;
507         value = 1;
508         index = 0;
509         blen = 0;
510 
511         ret = az6007_write(d, req, value, index, NULL, blen);
512         if (ret != 0) {
513                 pr_warn("usb out operation failed. (%d)\n", ret);
514                 goto failed;
515         }
516 
517 failed:
518         mutex_unlock(&state->ca_mutex);
519         return ret;
520 }
521 
522 static int az6007_ci_poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open)
523 {
524         struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
525         struct az6007_device_state *state = d_to_priv(d);
526         int ret;
527         u8 req;
528         u16 value;
529         u16 index;
530         int blen;
531         u8 *b;
532 
533         b = kmalloc(12, GFP_KERNEL);
534         if (!b)
535                 return -ENOMEM;
536         mutex_lock(&state->ca_mutex);
537 
538         req = 0xC5;
539         value = 0;
540         index = 0;
541         blen = 1;
542 
543         ret = az6007_read(d, req, value, index, b, blen);
544         if (ret < 0) {
545                 pr_warn("usb in operation failed. (%d)\n", ret);
546                 ret = -EIO;
547         } else
548                 ret = 0;
549 
550         if (!ret && b[0] == 1) {
551                 ret = DVB_CA_EN50221_POLL_CAM_PRESENT |
552                       DVB_CA_EN50221_POLL_CAM_READY;
553         }
554 
555         mutex_unlock(&state->ca_mutex);
556         kfree(b);
557         return ret;
558 }
559 
560 
561 static void az6007_ci_uninit(struct dvb_usb_device *d)
562 {
563         struct az6007_device_state *state;
564 
565         pr_debug("%s()\n", __func__);
566 
567         if (NULL == d)
568                 return;
569 
570         state = d_to_priv(d);
571         if (NULL == state)
572                 return;
573 
574         if (NULL == state->ca.data)
575                 return;
576 
577         dvb_ca_en50221_release(&state->ca);
578 
579         memset(&state->ca, 0, sizeof(state->ca));
580 }
581 
582 
583 static int az6007_ci_init(struct dvb_usb_adapter *adap)
584 {
585         struct dvb_usb_device *d = adap_to_d(adap);
586         struct az6007_device_state *state = adap_to_priv(adap);
587         int ret;
588 
589         pr_debug("%s()\n", __func__);
590 
591         mutex_init(&state->ca_mutex);
592         state->ca.owner                 = THIS_MODULE;
593         state->ca.read_attribute_mem    = az6007_ci_read_attribute_mem;
594         state->ca.write_attribute_mem   = az6007_ci_write_attribute_mem;
595         state->ca.read_cam_control      = az6007_ci_read_cam_control;
596         state->ca.write_cam_control     = az6007_ci_write_cam_control;
597         state->ca.slot_reset            = az6007_ci_slot_reset;
598         state->ca.slot_shutdown         = az6007_ci_slot_shutdown;
599         state->ca.slot_ts_enable        = az6007_ci_slot_ts_enable;
600         state->ca.poll_slot_status      = az6007_ci_poll_slot_status;
601         state->ca.data                  = d;
602 
603         ret = dvb_ca_en50221_init(&adap->dvb_adap,
604                                   &state->ca,
605                                   0, /* flags */
606                                   1);/* n_slots */
607         if (ret != 0) {
608                 pr_err("Cannot initialize CI: Error %d.\n", ret);
609                 memset(&state->ca, 0, sizeof(state->ca));
610                 return ret;
611         }
612 
613         pr_debug("CI initialized.\n");
614 
615         return 0;
616 }
617 
618 static int az6007_read_mac_addr(struct dvb_usb_adapter *adap, u8 mac[6])
619 {
620         struct dvb_usb_device *d = adap_to_d(adap);
621         struct az6007_device_state *st = adap_to_priv(adap);
622         int ret;
623 
624         ret = az6007_read(d, AZ6007_READ_DATA, 6, 0, st->data, 6);
625         memcpy(mac, st->data, 6);
626 
627         if (ret > 0)
628                 pr_debug("%s: mac is %pM\n", __func__, mac);
629 
630         return ret;
631 }
632 
633 static int az6007_frontend_attach(struct dvb_usb_adapter *adap)
634 {
635         struct az6007_device_state *st = adap_to_priv(adap);
636         struct dvb_usb_device *d = adap_to_d(adap);
637 
638         pr_debug("attaching demod drxk\n");
639 
640         adap->fe[0] = dvb_attach(drxk_attach, &terratec_h7_drxk,
641                                  &d->i2c_adap);
642         if (!adap->fe[0])
643                 return -EINVAL;
644 
645         adap->fe[0]->sec_priv = adap;
646         st->gate_ctrl = adap->fe[0]->ops.i2c_gate_ctrl;
647         adap->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
648 
649         az6007_ci_init(adap);
650 
651         return 0;
652 }
653 
654 static int az6007_cablestar_hdci_frontend_attach(struct dvb_usb_adapter *adap)
655 {
656         struct az6007_device_state *st = adap_to_priv(adap);
657         struct dvb_usb_device *d = adap_to_d(adap);
658 
659         pr_debug("attaching demod drxk\n");
660 
661         adap->fe[0] = dvb_attach(drxk_attach, &cablestar_hdci_drxk,
662                                  &d->i2c_adap);
663         if (!adap->fe[0])
664                 return -EINVAL;
665 
666         adap->fe[0]->sec_priv = adap;
667         st->gate_ctrl = adap->fe[0]->ops.i2c_gate_ctrl;
668         adap->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
669 
670         az6007_ci_init(adap);
671 
672         return 0;
673 }
674 
675 static int az6007_tuner_attach(struct dvb_usb_adapter *adap)
676 {
677         struct dvb_usb_device *d = adap_to_d(adap);
678 
679         pr_debug("attaching tuner mt2063\n");
680 
681         /* Attach mt2063 to DVB-C frontend */
682         if (adap->fe[0]->ops.i2c_gate_ctrl)
683                 adap->fe[0]->ops.i2c_gate_ctrl(adap->fe[0], 1);
684         if (!dvb_attach(mt2063_attach, adap->fe[0],
685                         &az6007_mt2063_config,
686                         &d->i2c_adap))
687                 return -EINVAL;
688 
689         if (adap->fe[0]->ops.i2c_gate_ctrl)
690                 adap->fe[0]->ops.i2c_gate_ctrl(adap->fe[0], 0);
691 
692         return 0;
693 }
694 
695 static int az6007_power_ctrl(struct dvb_usb_device *d, int onoff)
696 {
697         struct az6007_device_state *state = d_to_priv(d);
698         int ret;
699 
700         pr_debug("%s()\n", __func__);
701 
702         if (!state->warm) {
703                 mutex_init(&state->mutex);
704 
705                 ret = az6007_write(d, AZ6007_POWER, 0, 2, NULL, 0);
706                 if (ret < 0)
707                         return ret;
708                 msleep(60);
709                 ret = az6007_write(d, AZ6007_POWER, 1, 4, NULL, 0);
710                 if (ret < 0)
711                         return ret;
712                 msleep(100);
713                 ret = az6007_write(d, AZ6007_POWER, 1, 3, NULL, 0);
714                 if (ret < 0)
715                         return ret;
716                 msleep(20);
717                 ret = az6007_write(d, AZ6007_POWER, 1, 4, NULL, 0);
718                 if (ret < 0)
719                         return ret;
720 
721                 msleep(400);
722                 ret = az6007_write(d, FX2_SCON1, 0, 3, NULL, 0);
723                 if (ret < 0)
724                         return ret;
725                 msleep(150);
726                 ret = az6007_write(d, FX2_SCON1, 1, 3, NULL, 0);
727                 if (ret < 0)
728                         return ret;
729                 msleep(430);
730                 ret = az6007_write(d, AZ6007_POWER, 0, 0, NULL, 0);
731                 if (ret < 0)
732                         return ret;
733 
734                 state->warm = true;
735 
736                 return 0;
737         }
738 
739         if (!onoff)
740                 return 0;
741 
742         az6007_write(d, AZ6007_POWER, 0, 0, NULL, 0);
743         az6007_write(d, AZ6007_TS_THROUGH, 0, 0, NULL, 0);
744 
745         return 0;
746 }
747 
748 /* I2C */
749 static int az6007_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
750                            int num)
751 {
752         struct dvb_usb_device *d = i2c_get_adapdata(adap);
753         struct az6007_device_state *st = d_to_priv(d);
754         int i, j, len;
755         int ret = 0;
756         u16 index;
757         u16 value;
758         int length;
759         u8 req, addr;
760 
761         if (mutex_lock_interruptible(&st->mutex) < 0)
762                 return -EAGAIN;
763 
764         for (i = 0; i < num; i++) {
765                 addr = msgs[i].addr << 1;
766                 if (((i + 1) < num)
767                     && (msgs[i].len == 1)
768                     && ((msgs[i].flags & I2C_M_RD) != I2C_M_RD)
769                     && (msgs[i + 1].flags & I2C_M_RD)
770                     && (msgs[i].addr == msgs[i + 1].addr)) {
771                         /*
772                          * A write + read xfer for the same address, where
773                          * the first xfer has just 1 byte length.
774                          * Need to join both into one operation
775                          */
776                         if (az6007_xfer_debug)
777                                 printk(KERN_DEBUG "az6007: I2C W/R addr=0x%x len=%d/%d\n",
778                                        addr, msgs[i].len, msgs[i + 1].len);
779                         req = AZ6007_I2C_RD;
780                         index = msgs[i].buf[0];
781                         value = addr | (1 << 8);
782                         length = 6 + msgs[i + 1].len;
783                         len = msgs[i + 1].len;
784                         ret = __az6007_read(d->udev, req, value, index,
785                                             st->data, length);
786                         if (ret >= len) {
787                                 for (j = 0; j < len; j++)
788                                         msgs[i + 1].buf[j] = st->data[j + 5];
789                         } else
790                                 ret = -EIO;
791                         i++;
792                 } else if (!(msgs[i].flags & I2C_M_RD)) {
793                         /* write bytes */
794                         if (az6007_xfer_debug)
795                                 printk(KERN_DEBUG "az6007: I2C W addr=0x%x len=%d\n",
796                                        addr, msgs[i].len);
797                         req = AZ6007_I2C_WR;
798                         index = msgs[i].buf[0];
799                         value = addr | (1 << 8);
800                         length = msgs[i].len - 1;
801                         len = msgs[i].len - 1;
802                         for (j = 0; j < len; j++)
803                                 st->data[j] = msgs[i].buf[j + 1];
804                         ret =  __az6007_write(d->udev, req, value, index,
805                                               st->data, length);
806                 } else {
807                         /* read bytes */
808                         if (az6007_xfer_debug)
809                                 printk(KERN_DEBUG "az6007: I2C R addr=0x%x len=%d\n",
810                                        addr, msgs[i].len);
811                         req = AZ6007_I2C_RD;
812                         index = msgs[i].buf[0];
813                         value = addr;
814                         length = msgs[i].len + 6;
815                         len = msgs[i].len;
816                         ret = __az6007_read(d->udev, req, value, index,
817                                             st->data, length);
818                         for (j = 0; j < len; j++)
819                                 msgs[i].buf[j] = st->data[j + 5];
820                 }
821                 if (ret < 0)
822                         goto err;
823         }
824 err:
825         mutex_unlock(&st->mutex);
826 
827         if (ret < 0) {
828                 pr_info("%s ERROR: %i\n", __func__, ret);
829                 return ret;
830         }
831         return num;
832 }
833 
834 static u32 az6007_i2c_func(struct i2c_adapter *adapter)
835 {
836         return I2C_FUNC_I2C;
837 }
838 
839 static struct i2c_algorithm az6007_i2c_algo = {
840         .master_xfer = az6007_i2c_xfer,
841         .functionality = az6007_i2c_func,
842 };
843 
844 static int az6007_identify_state(struct dvb_usb_device *d, const char **name)
845 {
846         int ret;
847         u8 *mac;
848 
849         pr_debug("Identifying az6007 state\n");
850 
851         mac = kmalloc(6, GFP_ATOMIC);
852         if (!mac)
853                 return -ENOMEM;
854 
855         /* Try to read the mac address */
856         ret = __az6007_read(d->udev, AZ6007_READ_DATA, 6, 0, mac, 6);
857         if (ret == 6)
858                 ret = WARM;
859         else
860                 ret = COLD;
861 
862         kfree(mac);
863 
864         if (ret == COLD) {
865                 __az6007_write(d->udev, 0x09, 1, 0, NULL, 0);
866                 __az6007_write(d->udev, 0x00, 0, 0, NULL, 0);
867                 __az6007_write(d->udev, 0x00, 0, 0, NULL, 0);
868         }
869 
870         pr_debug("Device is on %s state\n",
871                  ret == WARM ? "warm" : "cold");
872         return ret;
873 }
874 
875 static void az6007_usb_disconnect(struct usb_interface *intf)
876 {
877         struct dvb_usb_device *d = usb_get_intfdata(intf);
878         az6007_ci_uninit(d);
879         dvb_usbv2_disconnect(intf);
880 }
881 
882 static int az6007_download_firmware(struct dvb_usb_device *d,
883         const struct firmware *fw)
884 {
885         pr_debug("Loading az6007 firmware\n");
886 
887         return cypress_load_firmware(d->udev, fw, CYPRESS_FX2);
888 }
889 
890 /* DVB USB Driver stuff */
891 static struct dvb_usb_device_properties az6007_props = {
892         .driver_name         = KBUILD_MODNAME,
893         .owner               = THIS_MODULE,
894         .firmware            = AZ6007_FIRMWARE,
895 
896         .adapter_nr          = adapter_nr,
897         .size_of_priv        = sizeof(struct az6007_device_state),
898         .i2c_algo            = &az6007_i2c_algo,
899         .tuner_attach        = az6007_tuner_attach,
900         .frontend_attach     = az6007_frontend_attach,
901         .streaming_ctrl      = az6007_streaming_ctrl,
902         .get_rc_config       = az6007_get_rc_config,
903         .read_mac_address    = az6007_read_mac_addr,
904         .download_firmware   = az6007_download_firmware,
905         .identify_state      = az6007_identify_state,
906         .power_ctrl          = az6007_power_ctrl,
907         .num_adapters        = 1,
908         .adapter             = {
909                 { .stream = DVB_USB_STREAM_BULK(0x02, 10, 4096), }
910         }
911 };
912 
913 static struct dvb_usb_device_properties az6007_cablestar_hdci_props = {
914         .driver_name         = KBUILD_MODNAME,
915         .owner               = THIS_MODULE,
916         .firmware            = AZ6007_FIRMWARE,
917 
918         .adapter_nr          = adapter_nr,
919         .size_of_priv        = sizeof(struct az6007_device_state),
920         .i2c_algo            = &az6007_i2c_algo,
921         .tuner_attach        = az6007_tuner_attach,
922         .frontend_attach     = az6007_cablestar_hdci_frontend_attach,
923         .streaming_ctrl      = az6007_streaming_ctrl,
924 /* ditch get_rc_config as it can't work (TS35 remote, I believe it's rc5) */
925         .get_rc_config       = NULL,
926         .read_mac_address    = az6007_read_mac_addr,
927         .download_firmware   = az6007_download_firmware,
928         .identify_state      = az6007_identify_state,
929         .power_ctrl          = az6007_power_ctrl,
930         .num_adapters        = 1,
931         .adapter             = {
932                 { .stream = DVB_USB_STREAM_BULK(0x02, 10, 4096), }
933         }
934 };
935 
936 static struct usb_device_id az6007_usb_table[] = {
937         {DVB_USB_DEVICE(USB_VID_AZUREWAVE, USB_PID_AZUREWAVE_6007,
938                 &az6007_props, "Azurewave 6007", RC_MAP_EMPTY)},
939         {DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_H7,
940                 &az6007_props, "Terratec H7", RC_MAP_NEC_TERRATEC_CINERGY_XS)},
941         {DVB_USB_DEVICE(USB_VID_TERRATEC, USB_PID_TERRATEC_H7_2,
942                 &az6007_props, "Terratec H7", RC_MAP_NEC_TERRATEC_CINERGY_XS)},
943         {DVB_USB_DEVICE(USB_VID_TECHNISAT, USB_PID_TECHNISAT_USB2_CABLESTAR_HDCI,
944                 &az6007_cablestar_hdci_props, "Technisat CableStar Combo HD CI", RC_MAP_EMPTY)},
945         {0},
946 };
947 
948 MODULE_DEVICE_TABLE(usb, az6007_usb_table);
949 
950 static int az6007_suspend(struct usb_interface *intf, pm_message_t msg)
951 {
952         struct dvb_usb_device *d = usb_get_intfdata(intf);
953 
954         az6007_ci_uninit(d);
955         return dvb_usbv2_suspend(intf, msg);
956 }
957 
958 static int az6007_resume(struct usb_interface *intf)
959 {
960         struct dvb_usb_device *d = usb_get_intfdata(intf);
961         struct dvb_usb_adapter *adap = &d->adapter[0];
962 
963         az6007_ci_init(adap);
964         return dvb_usbv2_resume(intf);
965 }
966 
967 /* usb specific object needed to register this driver with the usb subsystem */
968 static struct usb_driver az6007_usb_driver = {
969         .name           = KBUILD_MODNAME,
970         .id_table       = az6007_usb_table,
971         .probe          = dvb_usbv2_probe,
972         .disconnect     = az6007_usb_disconnect,
973         .no_dynamic_id  = 1,
974         .soft_unbind    = 1,
975         /*
976          * FIXME: need to implement reset_resume, likely with
977          * dvb-usb-v2 core support
978          */
979         .suspend        = az6007_suspend,
980         .resume         = az6007_resume,
981 };
982 
983 module_usb_driver(az6007_usb_driver);
984 
985 MODULE_AUTHOR("Henry Wang <Henry.wang@AzureWave.com>");
986 MODULE_AUTHOR("Mauro Carvalho Chehab");
987 MODULE_DESCRIPTION("Driver for AzureWave 6007 DVB-C/T USB2.0 and clones");
988 MODULE_VERSION("2.0");
989 MODULE_LICENSE("GPL");
990 MODULE_FIRMWARE(AZ6007_FIRMWARE);
991 

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