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[media] easycap: fix warnings: variable set but not used
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / video / em28xx / em28xx-dvb.c
1 /*
2 DVB device driver for em28xx
3
4 (c) 2008-2011 Mauro Carvalho Chehab <mchehab@infradead.org>
5
6 (c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com>
7 - Fixes for the driver to properly work with HVR-950
8 - Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick
9 - Fixes for the driver to properly work with AMD ATI TV Wonder HD 600
10
11 (c) 2008 Aidan Thornton <makosoft@googlemail.com>
12
13 Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
14 (c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
15 (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
16
17 This program is free software; you can redistribute it and/or modify
18 it under the terms of the GNU General Public License as published by
19 the Free Software Foundation; either version 2 of the License.
20 */
21
22 #include <linux/kernel.h>
23 #include <linux/slab.h>
24 #include <linux/usb.h>
25
26 #include "em28xx.h"
27 #include <media/v4l2-common.h>
28 #include <media/videobuf-vmalloc.h>
29 #include <media/tuner.h>
30 #include "tuner-simple.h"
31
32 #include "lgdt330x.h"
33 #include "lgdt3305.h"
34 #include "zl10353.h"
35 #include "s5h1409.h"
36 #include "mt352.h"
37 #include "mt352_priv.h" /* FIXME */
38 #include "tda1002x.h"
39 #include "tda18271.h"
40 #include "s921.h"
41 #include "drxd.h"
42 #include "cxd2820r.h"
43 #include "tda18271c2dd.h"
44 #include "drxk.h"
45 #include "tda10071.h"
46 #include "a8293.h"
47
48 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
49 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
50 MODULE_LICENSE("GPL");
51
52 static unsigned int debug;
53 module_param(debug, int, 0644);
54 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
55
56 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
57
58 #define dprintk(level, fmt, arg...) do { \
59 if (debug >= level) \
60 printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
61 } while (0)
62
63 #define EM28XX_DVB_NUM_BUFS 5
64 #define EM28XX_DVB_MAX_PACKETS 64
65
66 struct em28xx_dvb {
67 struct dvb_frontend *fe[2];
68
69 /* feed count management */
70 struct mutex lock;
71 int nfeeds;
72
73 /* general boilerplate stuff */
74 struct dvb_adapter adapter;
75 struct dvb_demux demux;
76 struct dmxdev dmxdev;
77 struct dmx_frontend fe_hw;
78 struct dmx_frontend fe_mem;
79 struct dvb_net net;
80
81 /* Due to DRX-K - probably need changes */
82 int (*gate_ctrl)(struct dvb_frontend *, int);
83 struct semaphore pll_mutex;
84 bool dont_attach_fe1;
85 };
86
87
88 static inline void print_err_status(struct em28xx *dev,
89 int packet, int status)
90 {
91 char *errmsg = "Unknown";
92
93 switch (status) {
94 case -ENOENT:
95 errmsg = "unlinked synchronuously";
96 break;
97 case -ECONNRESET:
98 errmsg = "unlinked asynchronuously";
99 break;
100 case -ENOSR:
101 errmsg = "Buffer error (overrun)";
102 break;
103 case -EPIPE:
104 errmsg = "Stalled (device not responding)";
105 break;
106 case -EOVERFLOW:
107 errmsg = "Babble (bad cable?)";
108 break;
109 case -EPROTO:
110 errmsg = "Bit-stuff error (bad cable?)";
111 break;
112 case -EILSEQ:
113 errmsg = "CRC/Timeout (could be anything)";
114 break;
115 case -ETIME:
116 errmsg = "Device does not respond";
117 break;
118 }
119 if (packet < 0) {
120 dprintk(1, "URB status %d [%s].\n", status, errmsg);
121 } else {
122 dprintk(1, "URB packet %d, status %d [%s].\n",
123 packet, status, errmsg);
124 }
125 }
126
127 static inline int em28xx_dvb_isoc_copy(struct em28xx *dev, struct urb *urb)
128 {
129 int i;
130
131 if (!dev)
132 return 0;
133
134 if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
135 return 0;
136
137 if (urb->status < 0) {
138 print_err_status(dev, -1, urb->status);
139 if (urb->status == -ENOENT)
140 return 0;
141 }
142
143 for (i = 0; i < urb->number_of_packets; i++) {
144 int status = urb->iso_frame_desc[i].status;
145
146 if (status < 0) {
147 print_err_status(dev, i, status);
148 if (urb->iso_frame_desc[i].status != -EPROTO)
149 continue;
150 }
151
152 dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
153 urb->iso_frame_desc[i].offset,
154 urb->iso_frame_desc[i].actual_length);
155 }
156
157 return 0;
158 }
159
160 static int em28xx_start_streaming(struct em28xx_dvb *dvb)
161 {
162 int rc;
163 struct em28xx *dev = dvb->adapter.priv;
164 int max_dvb_packet_size;
165
166 usb_set_interface(dev->udev, 0, 1);
167 rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
168 if (rc < 0)
169 return rc;
170
171 max_dvb_packet_size = em28xx_isoc_dvb_max_packetsize(dev);
172 if (max_dvb_packet_size < 0)
173 return max_dvb_packet_size;
174 dprintk(1, "Using %d buffers each with %d bytes\n",
175 EM28XX_DVB_NUM_BUFS,
176 max_dvb_packet_size);
177
178 return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS,
179 EM28XX_DVB_NUM_BUFS, max_dvb_packet_size,
180 em28xx_dvb_isoc_copy);
181 }
182
183 static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
184 {
185 struct em28xx *dev = dvb->adapter.priv;
186
187 em28xx_uninit_isoc(dev);
188
189 em28xx_set_mode(dev, EM28XX_SUSPEND);
190
191 return 0;
192 }
193
194 static int em28xx_start_feed(struct dvb_demux_feed *feed)
195 {
196 struct dvb_demux *demux = feed->demux;
197 struct em28xx_dvb *dvb = demux->priv;
198 int rc, ret;
199
200 if (!demux->dmx.frontend)
201 return -EINVAL;
202
203 mutex_lock(&dvb->lock);
204 dvb->nfeeds++;
205 rc = dvb->nfeeds;
206
207 if (dvb->nfeeds == 1) {
208 ret = em28xx_start_streaming(dvb);
209 if (ret < 0)
210 rc = ret;
211 }
212
213 mutex_unlock(&dvb->lock);
214 return rc;
215 }
216
217 static int em28xx_stop_feed(struct dvb_demux_feed *feed)
218 {
219 struct dvb_demux *demux = feed->demux;
220 struct em28xx_dvb *dvb = demux->priv;
221 int err = 0;
222
223 mutex_lock(&dvb->lock);
224 dvb->nfeeds--;
225
226 if (0 == dvb->nfeeds)
227 err = em28xx_stop_streaming(dvb);
228
229 mutex_unlock(&dvb->lock);
230 return err;
231 }
232
233
234
235 /* ------------------------------------------------------------------ */
236 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
237 {
238 struct em28xx *dev = fe->dvb->priv;
239
240 if (acquire)
241 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
242 else
243 return em28xx_set_mode(dev, EM28XX_SUSPEND);
244 }
245
246 /* ------------------------------------------------------------------ */
247
248 static struct lgdt330x_config em2880_lgdt3303_dev = {
249 .demod_address = 0x0e,
250 .demod_chip = LGDT3303,
251 };
252
253 static struct lgdt3305_config em2870_lgdt3304_dev = {
254 .i2c_addr = 0x0e,
255 .demod_chip = LGDT3304,
256 .spectral_inversion = 1,
257 .deny_i2c_rptr = 1,
258 .mpeg_mode = LGDT3305_MPEG_PARALLEL,
259 .tpclk_edge = LGDT3305_TPCLK_FALLING_EDGE,
260 .tpvalid_polarity = LGDT3305_TP_VALID_HIGH,
261 .vsb_if_khz = 3250,
262 .qam_if_khz = 4000,
263 };
264
265 static struct s921_config sharp_isdbt = {
266 .demod_address = 0x30 >> 1
267 };
268
269 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
270 .demod_address = (0x1e >> 1),
271 .no_tuner = 1,
272 .parallel_ts = 1,
273 .if2 = 45600,
274 };
275
276 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
277 .demod_address = 0x32 >> 1,
278 .output_mode = S5H1409_PARALLEL_OUTPUT,
279 .gpio = S5H1409_GPIO_OFF,
280 .inversion = S5H1409_INVERSION_OFF,
281 .status_mode = S5H1409_DEMODLOCKING,
282 .mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
283 };
284
285 static struct tda18271_std_map kworld_a340_std_map = {
286 .atsc_6 = { .if_freq = 3250, .agc_mode = 3, .std = 0,
287 .if_lvl = 1, .rfagc_top = 0x37, },
288 .qam_6 = { .if_freq = 4000, .agc_mode = 3, .std = 1,
289 .if_lvl = 1, .rfagc_top = 0x37, },
290 };
291
292 static struct tda18271_config kworld_a340_config = {
293 .std_map = &kworld_a340_std_map,
294 };
295
296 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
297 .demod_address = (0x1e >> 1),
298 .no_tuner = 1,
299 .disable_i2c_gate_ctrl = 1,
300 .parallel_ts = 1,
301 .if2 = 45600,
302 };
303
304 static struct drxd_config em28xx_drxd = {
305 .index = 0, .demod_address = 0x70, .demod_revision = 0xa2,
306 .demoda_address = 0x00, .pll_address = 0x00,
307 .pll_type = DRXD_PLL_NONE, .clock = 12000, .insert_rs_byte = 1,
308 .pll_set = NULL, .osc_deviation = NULL, .IF = 42800000,
309 .disable_i2c_gate_ctrl = 1,
310 };
311
312 struct drxk_config terratec_h5_drxk = {
313 .adr = 0x29,
314 .single_master = 1,
315 .no_i2c_bridge = 1,
316 .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
317 };
318
319 struct drxk_config hauppauge_930c_drxk = {
320 .adr = 0x29,
321 .single_master = 1,
322 .no_i2c_bridge = 1,
323 .microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
324 .chunk_size = 56,
325 };
326
327 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
328 {
329 struct em28xx_dvb *dvb = fe->sec_priv;
330 int status;
331
332 if (!dvb)
333 return -EINVAL;
334
335 if (enable) {
336 down(&dvb->pll_mutex);
337 status = dvb->gate_ctrl(fe, 1);
338 } else {
339 status = dvb->gate_ctrl(fe, 0);
340 up(&dvb->pll_mutex);
341 }
342 return status;
343 }
344
345 static void hauppauge_hvr930c_init(struct em28xx *dev)
346 {
347 int i;
348
349 struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
350 {EM2874_R80_GPIO, 0xff, 0xff, 0x65},
351 {EM2874_R80_GPIO, 0xfb, 0xff, 0x32},
352 {EM2874_R80_GPIO, 0xff, 0xff, 0xb8},
353 { -1, -1, -1, -1},
354 };
355 struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
356 {EM2874_R80_GPIO, 0xef, 0xff, 0x01},
357 {EM2874_R80_GPIO, 0xaf, 0xff, 0x65},
358 {EM2874_R80_GPIO, 0xef, 0xff, 0x76},
359 {EM2874_R80_GPIO, 0xef, 0xff, 0x01},
360 {EM2874_R80_GPIO, 0xcf, 0xff, 0x0b},
361 {EM2874_R80_GPIO, 0xef, 0xff, 0x40},
362
363 {EM2874_R80_GPIO, 0xcf, 0xff, 0x65},
364 {EM2874_R80_GPIO, 0xef, 0xff, 0x65},
365 {EM2874_R80_GPIO, 0xcf, 0xff, 0x0b},
366 {EM2874_R80_GPIO, 0xef, 0xff, 0x65},
367
368 { -1, -1, -1, -1},
369 };
370
371 struct {
372 unsigned char r[4];
373 int len;
374 } regs[] = {
375 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
376 {{ 0x01, 0x02 }, 2},
377 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
378 {{ 0x01, 0x00 }, 2},
379 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
380 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
381 {{ 0x01, 0x00 }, 2},
382 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
383 {{ 0x04, 0x00 }, 2},
384 {{ 0x00, 0x04 }, 2},
385 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
386 {{ 0x04, 0x14 }, 2},
387 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
388 };
389
390 em28xx_gpio_set(dev, hauppauge_hvr930c_init);
391 em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
392 msleep(10);
393 em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
394 msleep(10);
395
396 dev->i2c_client.addr = 0x82 >> 1;
397
398 for (i = 0; i < ARRAY_SIZE(regs); i++)
399 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
400 em28xx_gpio_set(dev, hauppauge_hvr930c_end);
401
402 msleep(100);
403
404 em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
405 msleep(30);
406
407 em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
408 msleep(10);
409
410 }
411
412 static void terratec_h5_init(struct em28xx *dev)
413 {
414 int i;
415 struct em28xx_reg_seq terratec_h5_init[] = {
416 {EM28XX_R08_GPIO, 0xff, 0xff, 10},
417 {EM2874_R80_GPIO, 0xf6, 0xff, 100},
418 {EM2874_R80_GPIO, 0xf2, 0xff, 50},
419 {EM2874_R80_GPIO, 0xf6, 0xff, 100},
420 { -1, -1, -1, -1},
421 };
422 struct em28xx_reg_seq terratec_h5_end[] = {
423 {EM2874_R80_GPIO, 0xe6, 0xff, 100},
424 {EM2874_R80_GPIO, 0xa6, 0xff, 50},
425 {EM2874_R80_GPIO, 0xe6, 0xff, 100},
426 { -1, -1, -1, -1},
427 };
428 struct {
429 unsigned char r[4];
430 int len;
431 } regs[] = {
432 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
433 {{ 0x01, 0x02 }, 2},
434 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
435 {{ 0x01, 0x00 }, 2},
436 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
437 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
438 {{ 0x01, 0x00 }, 2},
439 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
440 {{ 0x04, 0x00 }, 2},
441 {{ 0x00, 0x04 }, 2},
442 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
443 {{ 0x04, 0x14 }, 2},
444 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
445 };
446
447 em28xx_gpio_set(dev, terratec_h5_init);
448 em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
449 msleep(10);
450 em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
451 msleep(10);
452
453 dev->i2c_client.addr = 0x82 >> 1;
454
455 for (i = 0; i < ARRAY_SIZE(regs); i++)
456 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
457 em28xx_gpio_set(dev, terratec_h5_end);
458 };
459
460 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
461 {
462 /* Values extracted from a USB trace of the Terratec Windows driver */
463 static u8 clock_config[] = { CLOCK_CTL, 0x38, 0x2c };
464 static u8 reset[] = { RESET, 0x80 };
465 static u8 adc_ctl_1_cfg[] = { ADC_CTL_1, 0x40 };
466 static u8 agc_cfg[] = { AGC_TARGET, 0x28, 0xa0 };
467 static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
468 static u8 rs_err_cfg[] = { RS_ERR_PER_1, 0x00, 0x4d };
469 static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
470 static u8 trl_nom_cfg[] = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
471 static u8 tps_given_cfg[] = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
472 static u8 tuner_go[] = { TUNER_GO, 0x01};
473
474 mt352_write(fe, clock_config, sizeof(clock_config));
475 udelay(200);
476 mt352_write(fe, reset, sizeof(reset));
477 mt352_write(fe, adc_ctl_1_cfg, sizeof(adc_ctl_1_cfg));
478 mt352_write(fe, agc_cfg, sizeof(agc_cfg));
479 mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
480 mt352_write(fe, rs_err_cfg, sizeof(rs_err_cfg));
481 mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
482 mt352_write(fe, trl_nom_cfg, sizeof(trl_nom_cfg));
483 mt352_write(fe, tps_given_cfg, sizeof(tps_given_cfg));
484 mt352_write(fe, tuner_go, sizeof(tuner_go));
485 return 0;
486 }
487
488 static struct mt352_config terratec_xs_mt352_cfg = {
489 .demod_address = (0x1e >> 1),
490 .no_tuner = 1,
491 .if2 = 45600,
492 .demod_init = em28xx_mt352_terratec_xs_init,
493 };
494
495 static struct tda10023_config em28xx_tda10023_config = {
496 .demod_address = 0x0c,
497 .invert = 1,
498 };
499
500 static struct cxd2820r_config em28xx_cxd2820r_config = {
501 .i2c_address = (0xd8 >> 1),
502 .ts_mode = CXD2820R_TS_SERIAL,
503
504 /* enable LNA for DVB-T2 and DVB-C */
505 .gpio_dvbt2[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L,
506 .gpio_dvbc[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L,
507 };
508
509 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
510 .output_opt = TDA18271_OUTPUT_LT_OFF,
511 .gate = TDA18271_GATE_DIGITAL,
512 };
513
514 static const struct tda10071_config em28xx_tda10071_config = {
515 .i2c_address = 0x55, /* (0xaa >> 1) */
516 .i2c_wr_max = 64,
517 .ts_mode = TDA10071_TS_SERIAL,
518 .spec_inv = 0,
519 .xtal = 40444000, /* 40.444 MHz */
520 .pll_multiplier = 20,
521 };
522
523 static const struct a8293_config em28xx_a8293_config = {
524 .i2c_addr = 0x08, /* (0x10 >> 1) */
525 };
526
527 /* ------------------------------------------------------------------ */
528
529 static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
530 {
531 struct dvb_frontend *fe;
532 struct xc2028_config cfg;
533
534 memset(&cfg, 0, sizeof(cfg));
535 cfg.i2c_adap = &dev->i2c_adap;
536 cfg.i2c_addr = addr;
537
538 if (!dev->dvb->fe[0]) {
539 em28xx_errdev("/2: dvb frontend not attached. "
540 "Can't attach xc3028\n");
541 return -EINVAL;
542 }
543
544 fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
545 if (!fe) {
546 em28xx_errdev("/2: xc3028 attach failed\n");
547 dvb_frontend_detach(dev->dvb->fe[0]);
548 dev->dvb->fe[0] = NULL;
549 return -EINVAL;
550 }
551
552 em28xx_info("%s/2: xc3028 attached\n", dev->name);
553
554 return 0;
555 }
556
557 /* ------------------------------------------------------------------ */
558
559 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
560 struct em28xx *dev, struct device *device)
561 {
562 int result;
563
564 mutex_init(&dvb->lock);
565
566 /* register adapter */
567 result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
568 adapter_nr);
569 if (result < 0) {
570 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
571 dev->name, result);
572 goto fail_adapter;
573 }
574
575 /* Ensure all frontends negotiate bus access */
576 dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
577 if (dvb->fe[1])
578 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
579
580 dvb->adapter.priv = dev;
581
582 /* register frontend */
583 result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
584 if (result < 0) {
585 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
586 dev->name, result);
587 goto fail_frontend0;
588 }
589
590 /* register 2nd frontend */
591 if (dvb->fe[1]) {
592 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
593 if (result < 0) {
594 printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
595 dev->name, result);
596 goto fail_frontend1;
597 }
598 }
599
600 /* register demux stuff */
601 dvb->demux.dmx.capabilities =
602 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
603 DMX_MEMORY_BASED_FILTERING;
604 dvb->demux.priv = dvb;
605 dvb->demux.filternum = 256;
606 dvb->demux.feednum = 256;
607 dvb->demux.start_feed = em28xx_start_feed;
608 dvb->demux.stop_feed = em28xx_stop_feed;
609
610 result = dvb_dmx_init(&dvb->demux);
611 if (result < 0) {
612 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
613 dev->name, result);
614 goto fail_dmx;
615 }
616
617 dvb->dmxdev.filternum = 256;
618 dvb->dmxdev.demux = &dvb->demux.dmx;
619 dvb->dmxdev.capabilities = 0;
620 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
621 if (result < 0) {
622 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
623 dev->name, result);
624 goto fail_dmxdev;
625 }
626
627 dvb->fe_hw.source = DMX_FRONTEND_0;
628 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
629 if (result < 0) {
630 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
631 dev->name, result);
632 goto fail_fe_hw;
633 }
634
635 dvb->fe_mem.source = DMX_MEMORY_FE;
636 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
637 if (result < 0) {
638 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
639 dev->name, result);
640 goto fail_fe_mem;
641 }
642
643 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
644 if (result < 0) {
645 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
646 dev->name, result);
647 goto fail_fe_conn;
648 }
649
650 /* register network adapter */
651 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
652 return 0;
653
654 fail_fe_conn:
655 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
656 fail_fe_mem:
657 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
658 fail_fe_hw:
659 dvb_dmxdev_release(&dvb->dmxdev);
660 fail_dmxdev:
661 dvb_dmx_release(&dvb->demux);
662 fail_dmx:
663 if (dvb->fe[1])
664 dvb_unregister_frontend(dvb->fe[1]);
665 dvb_unregister_frontend(dvb->fe[0]);
666 fail_frontend1:
667 if (dvb->fe[1])
668 dvb_frontend_detach(dvb->fe[1]);
669 fail_frontend0:
670 dvb_frontend_detach(dvb->fe[0]);
671 dvb_unregister_adapter(&dvb->adapter);
672 fail_adapter:
673 return result;
674 }
675
676 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
677 {
678 dvb_net_release(&dvb->net);
679 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
680 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
681 dvb_dmxdev_release(&dvb->dmxdev);
682 dvb_dmx_release(&dvb->demux);
683 if (dvb->fe[1])
684 dvb_unregister_frontend(dvb->fe[1]);
685 dvb_unregister_frontend(dvb->fe[0]);
686 if (dvb->fe[1] && !dvb->dont_attach_fe1)
687 dvb_frontend_detach(dvb->fe[1]);
688 dvb_frontend_detach(dvb->fe[0]);
689 dvb_unregister_adapter(&dvb->adapter);
690 }
691
692 static int em28xx_dvb_init(struct em28xx *dev)
693 {
694 int result = 0, mfe_shared = 0;
695 struct em28xx_dvb *dvb;
696
697 if (!dev->board.has_dvb) {
698 /* This device does not support the extension */
699 printk(KERN_INFO "em28xx_dvb: This device does not support the extension\n");
700 return 0;
701 }
702
703 dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
704
705 if (dvb == NULL) {
706 em28xx_info("em28xx_dvb: memory allocation failed\n");
707 return -ENOMEM;
708 }
709 dev->dvb = dvb;
710 dvb->fe[0] = dvb->fe[1] = NULL;
711
712 mutex_lock(&dev->lock);
713 em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
714 /* init frontend */
715 switch (dev->model) {
716 case EM2874_BOARD_LEADERSHIP_ISDBT:
717 dvb->fe[0] = dvb_attach(s921_attach,
718 &sharp_isdbt, &dev->i2c_adap);
719
720 if (!dvb->fe[0]) {
721 result = -EINVAL;
722 goto out_free;
723 }
724
725 break;
726 case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
727 case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
728 case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
729 case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
730 dvb->fe[0] = dvb_attach(lgdt330x_attach,
731 &em2880_lgdt3303_dev,
732 &dev->i2c_adap);
733 if (em28xx_attach_xc3028(0x61, dev) < 0) {
734 result = -EINVAL;
735 goto out_free;
736 }
737 break;
738 case EM2880_BOARD_KWORLD_DVB_310U:
739 dvb->fe[0] = dvb_attach(zl10353_attach,
740 &em28xx_zl10353_with_xc3028,
741 &dev->i2c_adap);
742 if (em28xx_attach_xc3028(0x61, dev) < 0) {
743 result = -EINVAL;
744 goto out_free;
745 }
746 break;
747 case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
748 case EM2882_BOARD_TERRATEC_HYBRID_XS:
749 case EM2880_BOARD_EMPIRE_DUAL_TV:
750 dvb->fe[0] = dvb_attach(zl10353_attach,
751 &em28xx_zl10353_xc3028_no_i2c_gate,
752 &dev->i2c_adap);
753 if (em28xx_attach_xc3028(0x61, dev) < 0) {
754 result = -EINVAL;
755 goto out_free;
756 }
757 break;
758 case EM2880_BOARD_TERRATEC_HYBRID_XS:
759 case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
760 case EM2881_BOARD_PINNACLE_HYBRID_PRO:
761 case EM2882_BOARD_DIKOM_DK300:
762 case EM2882_BOARD_KWORLD_VS_DVBT:
763 dvb->fe[0] = dvb_attach(zl10353_attach,
764 &em28xx_zl10353_xc3028_no_i2c_gate,
765 &dev->i2c_adap);
766 if (dvb->fe[0] == NULL) {
767 /* This board could have either a zl10353 or a mt352.
768 If the chip id isn't for zl10353, try mt352 */
769 dvb->fe[0] = dvb_attach(mt352_attach,
770 &terratec_xs_mt352_cfg,
771 &dev->i2c_adap);
772 }
773
774 if (em28xx_attach_xc3028(0x61, dev) < 0) {
775 result = -EINVAL;
776 goto out_free;
777 }
778 break;
779 case EM2883_BOARD_KWORLD_HYBRID_330U:
780 case EM2882_BOARD_EVGA_INDTUBE:
781 dvb->fe[0] = dvb_attach(s5h1409_attach,
782 &em28xx_s5h1409_with_xc3028,
783 &dev->i2c_adap);
784 if (em28xx_attach_xc3028(0x61, dev) < 0) {
785 result = -EINVAL;
786 goto out_free;
787 }
788 break;
789 case EM2882_BOARD_KWORLD_ATSC_315U:
790 dvb->fe[0] = dvb_attach(lgdt330x_attach,
791 &em2880_lgdt3303_dev,
792 &dev->i2c_adap);
793 if (dvb->fe[0] != NULL) {
794 if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
795 &dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
796 result = -EINVAL;
797 goto out_free;
798 }
799 }
800 break;
801 case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
802 case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
803 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
804 &dev->i2c_adap, &dev->udev->dev);
805 if (em28xx_attach_xc3028(0x61, dev) < 0) {
806 result = -EINVAL;
807 goto out_free;
808 }
809 break;
810 case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
811 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
812 dvb->fe[0] = dvb_attach(tda10023_attach,
813 &em28xx_tda10023_config,
814 &dev->i2c_adap, 0x48);
815 if (dvb->fe[0]) {
816 if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
817 &dev->i2c_adap, 0x60, TUNER_PHILIPS_CU1216L)) {
818 result = -EINVAL;
819 goto out_free;
820 }
821 }
822 break;
823 case EM2870_BOARD_KWORLD_A340:
824 dvb->fe[0] = dvb_attach(lgdt3305_attach,
825 &em2870_lgdt3304_dev,
826 &dev->i2c_adap);
827 if (dvb->fe[0] != NULL)
828 dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
829 &dev->i2c_adap, &kworld_a340_config);
830 break;
831 case EM28174_BOARD_PCTV_290E:
832 /* MFE
833 * FE 0 = DVB-T/T2 + FE 1 = DVB-C, both sharing same tuner. */
834 /* FE 0 */
835 dvb->fe[0] = dvb_attach(cxd2820r_attach,
836 &em28xx_cxd2820r_config, &dev->i2c_adap, NULL);
837 if (dvb->fe[0]) {
838 /* FE 0 attach tuner */
839 if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
840 &dev->i2c_adap, &em28xx_cxd2820r_tda18271_config)) {
841 dvb_frontend_detach(dvb->fe[0]);
842 result = -EINVAL;
843 goto out_free;
844 }
845 /* FE 1. This dvb_attach() cannot fail. */
846 dvb->fe[1] = dvb_attach(cxd2820r_attach, NULL, NULL,
847 dvb->fe[0]);
848 dvb->fe[1]->id = 1;
849 /* FE 1 attach tuner */
850 if (!dvb_attach(tda18271_attach, dvb->fe[1], 0x60,
851 &dev->i2c_adap, &em28xx_cxd2820r_tda18271_config)) {
852 dvb_frontend_detach(dvb->fe[1]);
853 /* leave FE 0 still active */
854 }
855
856 mfe_shared = 1;
857 }
858 break;
859 case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
860 {
861 struct xc5000_config cfg;
862 hauppauge_hvr930c_init(dev);
863
864 dvb->dont_attach_fe1 = 1;
865
866 dvb->fe[0] = dvb_attach(drxk_attach,
867 &hauppauge_930c_drxk, &dev->i2c_adap,
868 &dvb->fe[1]);
869 if (!dvb->fe[0]) {
870 result = -EINVAL;
871 goto out_free;
872 }
873 /* FIXME: do we need a pll semaphore? */
874 dvb->fe[0]->sec_priv = dvb;
875 sema_init(&dvb->pll_mutex, 1);
876 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
877 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
878 dvb->fe[1]->id = 1;
879
880 /* Attach xc5000 */
881 memset(&cfg, 0, sizeof(cfg));
882 cfg.i2c_address = 0x61;
883 cfg.if_khz = 4000;
884
885 if (dvb->fe[0]->ops.i2c_gate_ctrl)
886 dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
887 if (!dvb_attach(xc5000_attach, dvb->fe[0], &dev->i2c_adap,
888 &cfg)) {
889 result = -EINVAL;
890 goto out_free;
891 }
892
893 if (dvb->fe[0]->ops.i2c_gate_ctrl)
894 dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
895
896 /* Hack - needed by drxk/tda18271c2dd */
897 dvb->fe[1]->tuner_priv = dvb->fe[0]->tuner_priv;
898 memcpy(&dvb->fe[1]->ops.tuner_ops,
899 &dvb->fe[0]->ops.tuner_ops,
900 sizeof(dvb->fe[0]->ops.tuner_ops));
901
902 break;
903 }
904 case EM2884_BOARD_TERRATEC_H5:
905 terratec_h5_init(dev);
906
907 dvb->dont_attach_fe1 = 1;
908
909 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap, &dvb->fe[1]);
910 if (!dvb->fe[0]) {
911 result = -EINVAL;
912 goto out_free;
913 }
914 /* FIXME: do we need a pll semaphore? */
915 dvb->fe[0]->sec_priv = dvb;
916 sema_init(&dvb->pll_mutex, 1);
917 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
918 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
919 dvb->fe[1]->id = 1;
920
921 /* Attach tda18271 to DVB-C frontend */
922 if (dvb->fe[0]->ops.i2c_gate_ctrl)
923 dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
924 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap, 0x60)) {
925 result = -EINVAL;
926 goto out_free;
927 }
928 if (dvb->fe[0]->ops.i2c_gate_ctrl)
929 dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
930
931 /* Hack - needed by drxk/tda18271c2dd */
932 dvb->fe[1]->tuner_priv = dvb->fe[0]->tuner_priv;
933 memcpy(&dvb->fe[1]->ops.tuner_ops,
934 &dvb->fe[0]->ops.tuner_ops,
935 sizeof(dvb->fe[0]->ops.tuner_ops));
936
937 break;
938 case EM28174_BOARD_PCTV_460E:
939 /* attach demod */
940 dvb->fe[0] = dvb_attach(tda10071_attach,
941 &em28xx_tda10071_config, &dev->i2c_adap);
942
943 /* attach SEC */
944 if (dvb->fe[0])
945 dvb_attach(a8293_attach, dvb->fe[0], &dev->i2c_adap,
946 &em28xx_a8293_config);
947 break;
948 default:
949 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
950 " isn't supported yet\n");
951 break;
952 }
953 if (NULL == dvb->fe[0]) {
954 em28xx_errdev("/2: frontend initialization failed\n");
955 result = -EINVAL;
956 goto out_free;
957 }
958 /* define general-purpose callback pointer */
959 dvb->fe[0]->callback = em28xx_tuner_callback;
960 if (dvb->fe[1])
961 dvb->fe[1]->callback = em28xx_tuner_callback;
962
963 /* register everything */
964 result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
965
966 if (result < 0)
967 goto out_free;
968
969 /* MFE lock */
970 dvb->adapter.mfe_shared = mfe_shared;
971
972 em28xx_info("Successfully loaded em28xx-dvb\n");
973 ret:
974 em28xx_set_mode(dev, EM28XX_SUSPEND);
975 mutex_unlock(&dev->lock);
976 return result;
977
978 out_free:
979 kfree(dvb);
980 dev->dvb = NULL;
981 goto ret;
982 }
983
984 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
985 {
986 ops->set_voltage = NULL;
987 ops->sleep = NULL;
988 ops->tuner_ops.sleep = NULL;
989 }
990
991 static int em28xx_dvb_fini(struct em28xx *dev)
992 {
993 if (!dev->board.has_dvb) {
994 /* This device does not support the extension */
995 return 0;
996 }
997
998 if (dev->dvb) {
999 struct em28xx_dvb *dvb = dev->dvb;
1000
1001 if (dev->state & DEV_DISCONNECTED) {
1002 /* We cannot tell the device to sleep
1003 * once it has been unplugged. */
1004 if (dvb->fe[0])
1005 prevent_sleep(&dvb->fe[0]->ops);
1006 if (dvb->fe[1])
1007 prevent_sleep(&dvb->fe[1]->ops);
1008 }
1009
1010 em28xx_unregister_dvb(dvb);
1011 kfree(dvb);
1012 dev->dvb = NULL;
1013 }
1014
1015 return 0;
1016 }
1017
1018 static struct em28xx_ops dvb_ops = {
1019 .id = EM28XX_DVB,
1020 .name = "Em28xx dvb Extension",
1021 .init = em28xx_dvb_init,
1022 .fini = em28xx_dvb_fini,
1023 };
1024
1025 static int __init em28xx_dvb_register(void)
1026 {
1027 return em28xx_register_extension(&dvb_ops);
1028 }
1029
1030 static void __exit em28xx_dvb_unregister(void)
1031 {
1032 em28xx_unregister_extension(&dvb_ops);
1033 }
1034
1035 module_init(em28xx_dvb_register);
1036 module_exit(em28xx_dvb_unregister);
kernel source for telekom puls (alcatel/mediatek)