2 DVB device driver for em28xx
4 (c) 2008 Mauro Carvalho Chehab <mchehab@infradead.org>
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
11 (c) 2008 Aidan Thornton <makosoft@googlemail.com>
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]
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.
22 #include <linux/kernel.h>
23 #include <linux/slab.h>
24 #include <linux/usb.h>
27 #include <media/v4l2-common.h>
28 #include <media/videobuf-vmalloc.h>
29 #include <media/tuner.h>
30 #include "tuner-simple.h"
36 #include "mt352_priv.h" /* FIXME */
39 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
40 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
41 MODULE_LICENSE("GPL");
43 static unsigned int debug;
44 module_param(debug, int, 0644);
45 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
47 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
49 #define dprintk(level, fmt, arg...) do { \
51 printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
54 #define EM28XX_DVB_NUM_BUFS 5
55 #define EM28XX_DVB_MAX_PACKETS 64
58 struct dvb_frontend *frontend;
60 /* feed count management */
64 /* general boilerplate stuff */
65 struct dvb_adapter adapter;
66 struct dvb_demux demux;
68 struct dmx_frontend fe_hw;
69 struct dmx_frontend fe_mem;
74 static inline void print_err_status(struct em28xx *dev,
75 int packet, int status)
77 char *errmsg = "Unknown";
81 errmsg = "unlinked synchronuously";
84 errmsg = "unlinked asynchronuously";
87 errmsg = "Buffer error (overrun)";
90 errmsg = "Stalled (device not responding)";
93 errmsg = "Babble (bad cable?)";
96 errmsg = "Bit-stuff error (bad cable?)";
99 errmsg = "CRC/Timeout (could be anything)";
102 errmsg = "Device does not respond";
106 dprintk(1, "URB status %d [%s].\n", status, errmsg);
108 dprintk(1, "URB packet %d, status %d [%s].\n",
109 packet, status, errmsg);
113 static inline int dvb_isoc_copy(struct em28xx *dev, struct urb *urb)
120 if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
123 if (urb->status < 0) {
124 print_err_status(dev, -1, urb->status);
125 if (urb->status == -ENOENT)
129 for (i = 0; i < urb->number_of_packets; i++) {
130 int status = urb->iso_frame_desc[i].status;
133 print_err_status(dev, i, status);
134 if (urb->iso_frame_desc[i].status != -EPROTO)
138 dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
139 urb->iso_frame_desc[i].offset,
140 urb->iso_frame_desc[i].actual_length);
146 static int start_streaming(struct em28xx_dvb *dvb)
149 struct em28xx *dev = dvb->adapter.priv;
150 int max_dvb_packet_size;
152 usb_set_interface(dev->udev, 0, 1);
153 rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
157 max_dvb_packet_size = em28xx_isoc_dvb_max_packetsize(dev);
159 return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS,
160 EM28XX_DVB_NUM_BUFS, max_dvb_packet_size,
164 static int stop_streaming(struct em28xx_dvb *dvb)
166 struct em28xx *dev = dvb->adapter.priv;
168 em28xx_uninit_isoc(dev);
170 em28xx_set_mode(dev, EM28XX_SUSPEND);
175 static int start_feed(struct dvb_demux_feed *feed)
177 struct dvb_demux *demux = feed->demux;
178 struct em28xx_dvb *dvb = demux->priv;
181 if (!demux->dmx.frontend)
184 mutex_lock(&dvb->lock);
188 if (dvb->nfeeds == 1) {
189 ret = start_streaming(dvb);
194 mutex_unlock(&dvb->lock);
198 static int stop_feed(struct dvb_demux_feed *feed)
200 struct dvb_demux *demux = feed->demux;
201 struct em28xx_dvb *dvb = demux->priv;
204 mutex_lock(&dvb->lock);
207 if (0 == dvb->nfeeds)
208 err = stop_streaming(dvb);
210 mutex_unlock(&dvb->lock);
216 /* ------------------------------------------------------------------ */
217 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
219 struct em28xx *dev = fe->dvb->priv;
222 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
224 return em28xx_set_mode(dev, EM28XX_SUSPEND);
227 /* ------------------------------------------------------------------ */
229 static struct lgdt330x_config em2880_lgdt3303_dev = {
230 .demod_address = 0x0e,
231 .demod_chip = LGDT3303,
234 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
235 .demod_address = (0x1e >> 1),
241 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
242 .demod_address = 0x32 >> 1,
243 .output_mode = S5H1409_PARALLEL_OUTPUT,
244 .gpio = S5H1409_GPIO_OFF,
245 .inversion = S5H1409_INVERSION_OFF,
246 .status_mode = S5H1409_DEMODLOCKING,
247 .mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
250 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
251 .demod_address = (0x1e >> 1),
253 .disable_i2c_gate_ctrl = 1,
258 #ifdef EM28XX_DRX397XD_SUPPORT
259 /* [TODO] djh - not sure yet what the device config needs to contain */
260 static struct drx397xD_config em28xx_drx397xD_with_xc3028 = {
261 .demod_address = (0xe0 >> 1),
265 static int mt352_terratec_xs_init(struct dvb_frontend *fe)
267 /* Values extracted from a USB trace of the Terratec Windows driver */
268 static u8 clock_config[] = { CLOCK_CTL, 0x38, 0x2c };
269 static u8 reset[] = { RESET, 0x80 };
270 static u8 adc_ctl_1_cfg[] = { ADC_CTL_1, 0x40 };
271 static u8 agc_cfg[] = { AGC_TARGET, 0x28, 0xa0 };
272 static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
273 static u8 rs_err_cfg[] = { RS_ERR_PER_1, 0x00, 0x4d };
274 static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
275 static u8 trl_nom_cfg[] = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
276 static u8 tps_given_cfg[] = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
277 static u8 tuner_go[] = { TUNER_GO, 0x01};
279 mt352_write(fe, clock_config, sizeof(clock_config));
281 mt352_write(fe, reset, sizeof(reset));
282 mt352_write(fe, adc_ctl_1_cfg, sizeof(adc_ctl_1_cfg));
283 mt352_write(fe, agc_cfg, sizeof(agc_cfg));
284 mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
285 mt352_write(fe, rs_err_cfg, sizeof(rs_err_cfg));
286 mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
287 mt352_write(fe, trl_nom_cfg, sizeof(trl_nom_cfg));
288 mt352_write(fe, tps_given_cfg, sizeof(tps_given_cfg));
289 mt352_write(fe, tuner_go, sizeof(tuner_go));
293 static struct mt352_config terratec_xs_mt352_cfg = {
294 .demod_address = (0x1e >> 1),
297 .demod_init = mt352_terratec_xs_init,
300 static struct tda10023_config em28xx_tda10023_config = {
301 .demod_address = 0x0c,
305 /* ------------------------------------------------------------------ */
307 static int attach_xc3028(u8 addr, struct em28xx *dev)
309 struct dvb_frontend *fe;
310 struct xc2028_config cfg;
312 memset(&cfg, 0, sizeof(cfg));
313 cfg.i2c_adap = &dev->i2c_adap;
316 if (!dev->dvb->frontend) {
317 em28xx_errdev("/2: dvb frontend not attached. "
318 "Can't attach xc3028\n");
322 fe = dvb_attach(xc2028_attach, dev->dvb->frontend, &cfg);
324 em28xx_errdev("/2: xc3028 attach failed\n");
325 dvb_frontend_detach(dev->dvb->frontend);
326 dev->dvb->frontend = NULL;
330 em28xx_info("%s/2: xc3028 attached\n", dev->name);
335 /* ------------------------------------------------------------------ */
337 static int register_dvb(struct em28xx_dvb *dvb,
338 struct module *module,
340 struct device *device)
344 mutex_init(&dvb->lock);
346 /* register adapter */
347 result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
350 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
355 /* Ensure all frontends negotiate bus access */
356 dvb->frontend->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
358 dvb->adapter.priv = dev;
360 /* register frontend */
361 result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
363 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
368 /* register demux stuff */
369 dvb->demux.dmx.capabilities =
370 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
371 DMX_MEMORY_BASED_FILTERING;
372 dvb->demux.priv = dvb;
373 dvb->demux.filternum = 256;
374 dvb->demux.feednum = 256;
375 dvb->demux.start_feed = start_feed;
376 dvb->demux.stop_feed = stop_feed;
378 result = dvb_dmx_init(&dvb->demux);
380 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
385 dvb->dmxdev.filternum = 256;
386 dvb->dmxdev.demux = &dvb->demux.dmx;
387 dvb->dmxdev.capabilities = 0;
388 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
390 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
395 dvb->fe_hw.source = DMX_FRONTEND_0;
396 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
398 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
403 dvb->fe_mem.source = DMX_MEMORY_FE;
404 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
406 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
411 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
413 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
418 /* register network adapter */
419 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
423 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
425 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
427 dvb_dmxdev_release(&dvb->dmxdev);
429 dvb_dmx_release(&dvb->demux);
431 dvb_unregister_frontend(dvb->frontend);
433 dvb_frontend_detach(dvb->frontend);
434 dvb_unregister_adapter(&dvb->adapter);
439 static void unregister_dvb(struct em28xx_dvb *dvb)
441 dvb_net_release(&dvb->net);
442 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
443 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
444 dvb_dmxdev_release(&dvb->dmxdev);
445 dvb_dmx_release(&dvb->demux);
446 dvb_unregister_frontend(dvb->frontend);
447 dvb_frontend_detach(dvb->frontend);
448 dvb_unregister_adapter(&dvb->adapter);
452 static int dvb_init(struct em28xx *dev)
455 struct em28xx_dvb *dvb;
457 if (!dev->board.has_dvb) {
458 /* This device does not support the extension */
462 dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
465 em28xx_info("em28xx_dvb: memory allocation failed\n");
470 em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
472 switch (dev->model) {
473 case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
474 case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
475 case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
476 case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
477 dvb->frontend = dvb_attach(lgdt330x_attach,
478 &em2880_lgdt3303_dev,
480 if (attach_xc3028(0x61, dev) < 0) {
485 case EM2880_BOARD_KWORLD_DVB_310U:
486 dvb->frontend = dvb_attach(zl10353_attach,
487 &em28xx_zl10353_with_xc3028,
489 if (attach_xc3028(0x61, dev) < 0) {
494 case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
495 case EM2882_BOARD_TERRATEC_HYBRID_XS:
496 case EM2880_BOARD_EMPIRE_DUAL_TV:
497 dvb->frontend = dvb_attach(zl10353_attach,
498 &em28xx_zl10353_xc3028_no_i2c_gate,
500 if (attach_xc3028(0x61, dev) < 0) {
505 case EM2880_BOARD_TERRATEC_HYBRID_XS:
506 case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
507 case EM2881_BOARD_PINNACLE_HYBRID_PRO:
508 case EM2882_BOARD_DIKOM_DK300:
509 dvb->frontend = dvb_attach(zl10353_attach,
510 &em28xx_zl10353_xc3028_no_i2c_gate,
512 if (dvb->frontend == NULL) {
513 /* This board could have either a zl10353 or a mt352.
514 If the chip id isn't for zl10353, try mt352 */
515 dvb->frontend = dvb_attach(mt352_attach,
516 &terratec_xs_mt352_cfg,
520 if (attach_xc3028(0x61, dev) < 0) {
525 case EM2883_BOARD_KWORLD_HYBRID_330U:
526 case EM2882_BOARD_EVGA_INDTUBE:
527 dvb->frontend = dvb_attach(s5h1409_attach,
528 &em28xx_s5h1409_with_xc3028,
530 if (attach_xc3028(0x61, dev) < 0) {
535 case EM2882_BOARD_KWORLD_ATSC_315U:
536 dvb->frontend = dvb_attach(lgdt330x_attach,
537 &em2880_lgdt3303_dev,
539 if (dvb->frontend != NULL) {
540 if (!dvb_attach(simple_tuner_attach, dvb->frontend,
541 &dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
547 case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
548 #ifdef EM28XX_DRX397XD_SUPPORT
549 /* We don't have the config structure properly populated, so
550 this is commented out for now */
551 dvb->frontend = dvb_attach(drx397xD_attach,
552 &em28xx_drx397xD_with_xc3028,
554 if (attach_xc3028(0x61, dev) < 0) {
560 case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
561 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
562 dvb->frontend = dvb_attach(tda10023_attach,
563 &em28xx_tda10023_config,
564 &dev->i2c_adap, 0x48);
566 if (!dvb_attach(simple_tuner_attach, dvb->frontend,
567 &dev->i2c_adap, 0x60, TUNER_PHILIPS_CU1216L)) {
574 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
575 " isn't supported yet\n");
578 if (NULL == dvb->frontend) {
579 em28xx_errdev("/2: frontend initialization failed\n");
583 /* define general-purpose callback pointer */
584 dvb->frontend->callback = em28xx_tuner_callback;
586 /* register everything */
587 result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
592 em28xx_set_mode(dev, EM28XX_SUSPEND);
593 em28xx_info("Successfully loaded em28xx-dvb\n");
597 em28xx_set_mode(dev, EM28XX_SUSPEND);
603 static int dvb_fini(struct em28xx *dev)
605 if (!dev->board.has_dvb) {
606 /* This device does not support the extension */
611 unregister_dvb(dev->dvb);
619 static struct em28xx_ops dvb_ops = {
621 .name = "Em28xx dvb Extension",
626 static int __init em28xx_dvb_register(void)
628 return em28xx_register_extension(&dvb_ops);
631 static void __exit em28xx_dvb_unregister(void)
633 em28xx_unregister_extension(&dvb_ops);
636 module_init(em28xx_dvb_register);
637 module_exit(em28xx_dvb_unregister);