Version:  2.0.40 2.2.26 2.4.37 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18

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

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