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/usb.h>
26 #include <media/v4l2-common.h>
27 #include <media/videobuf-vmalloc.h>
28 #include <media/tuner.h>
29 #include "tuner-simple.h"
35 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
36 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
37 MODULE_LICENSE("GPL");
39 static unsigned int debug;
40 module_param(debug, int, 0644);
41 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
43 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
45 #define dprintk(level, fmt, arg...) do { \
47 printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
50 #define EM28XX_DVB_NUM_BUFS 5
51 #define EM28XX_DVB_MAX_PACKETS 64
54 struct dvb_frontend *frontend;
56 /* feed count management */
60 /* general boilerplate stuff */
61 struct dvb_adapter adapter;
62 struct dvb_demux demux;
64 struct dmx_frontend fe_hw;
65 struct dmx_frontend fe_mem;
70 static inline void print_err_status(struct em28xx *dev,
71 int packet, int status)
73 char *errmsg = "Unknown";
77 errmsg = "unlinked synchronuously";
80 errmsg = "unlinked asynchronuously";
83 errmsg = "Buffer error (overrun)";
86 errmsg = "Stalled (device not responding)";
89 errmsg = "Babble (bad cable?)";
92 errmsg = "Bit-stuff error (bad cable?)";
95 errmsg = "CRC/Timeout (could be anything)";
98 errmsg = "Device does not respond";
102 dprintk(1, "URB status %d [%s].\n", status, errmsg);
104 dprintk(1, "URB packet %d, status %d [%s].\n",
105 packet, status, errmsg);
109 static inline int dvb_isoc_copy(struct em28xx *dev, struct urb *urb)
116 if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
119 if (urb->status < 0) {
120 print_err_status(dev, -1, urb->status);
121 if (urb->status == -ENOENT)
125 for (i = 0; i < urb->number_of_packets; i++) {
126 int status = urb->iso_frame_desc[i].status;
129 print_err_status(dev, i, status);
130 if (urb->iso_frame_desc[i].status != -EPROTO)
134 dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
135 urb->iso_frame_desc[i].offset,
136 urb->iso_frame_desc[i].actual_length);
142 static int start_streaming(struct em28xx_dvb *dvb)
145 struct em28xx *dev = dvb->adapter.priv;
146 int max_dvb_packet_size;
148 usb_set_interface(dev->udev, 0, 1);
149 rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
153 max_dvb_packet_size = em28xx_isoc_dvb_max_packetsize(dev);
155 return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS,
156 EM28XX_DVB_NUM_BUFS, max_dvb_packet_size,
160 static int stop_streaming(struct em28xx_dvb *dvb)
162 struct em28xx *dev = dvb->adapter.priv;
164 em28xx_uninit_isoc(dev);
166 em28xx_set_mode(dev, EM28XX_SUSPEND);
171 static int start_feed(struct dvb_demux_feed *feed)
173 struct dvb_demux *demux = feed->demux;
174 struct em28xx_dvb *dvb = demux->priv;
177 if (!demux->dmx.frontend)
180 mutex_lock(&dvb->lock);
184 if (dvb->nfeeds == 1) {
185 ret = start_streaming(dvb);
190 mutex_unlock(&dvb->lock);
194 static int stop_feed(struct dvb_demux_feed *feed)
196 struct dvb_demux *demux = feed->demux;
197 struct em28xx_dvb *dvb = demux->priv;
200 mutex_lock(&dvb->lock);
203 if (0 == dvb->nfeeds)
204 err = stop_streaming(dvb);
206 mutex_unlock(&dvb->lock);
212 /* ------------------------------------------------------------------ */
213 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
215 struct em28xx *dev = fe->dvb->priv;
218 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
220 return em28xx_set_mode(dev, EM28XX_SUSPEND);
223 /* ------------------------------------------------------------------ */
225 static struct lgdt330x_config em2880_lgdt3303_dev = {
226 .demod_address = 0x0e,
227 .demod_chip = LGDT3303,
230 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
231 .demod_address = (0x1e >> 1),
237 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
238 .demod_address = 0x32 >> 1,
239 .output_mode = S5H1409_PARALLEL_OUTPUT,
240 .gpio = S5H1409_GPIO_OFF,
241 .inversion = S5H1409_INVERSION_OFF,
242 .status_mode = S5H1409_DEMODLOCKING,
243 .mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
246 static struct zl10353_config em28xx_terratec_xs_zl10353_xc3028 = {
247 .demod_address = (0x1e >> 1),
249 .disable_i2c_gate_ctrl = 1,
254 #ifdef EM28XX_DRX397XD_SUPPORT
255 /* [TODO] djh - not sure yet what the device config needs to contain */
256 static struct drx397xD_config em28xx_drx397xD_with_xc3028 = {
257 .demod_address = (0xe0 >> 1),
261 /* ------------------------------------------------------------------ */
263 static int attach_xc3028(u8 addr, struct em28xx *dev)
265 struct dvb_frontend *fe;
266 struct xc2028_config cfg;
268 memset(&cfg, 0, sizeof(cfg));
269 cfg.i2c_adap = &dev->i2c_adap;
272 if (!dev->dvb->frontend) {
273 printk(KERN_ERR "%s/2: dvb frontend not attached. "
274 "Can't attach xc3028\n",
279 fe = dvb_attach(xc2028_attach, dev->dvb->frontend, &cfg);
281 printk(KERN_ERR "%s/2: xc3028 attach failed\n",
283 dvb_frontend_detach(dev->dvb->frontend);
284 dev->dvb->frontend = NULL;
288 printk(KERN_INFO "%s/2: xc3028 attached\n", dev->name);
293 /* ------------------------------------------------------------------ */
295 static int register_dvb(struct em28xx_dvb *dvb,
296 struct module *module,
298 struct device *device)
302 mutex_init(&dvb->lock);
304 /* register adapter */
305 result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
308 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
313 /* Ensure all frontends negotiate bus access */
314 dvb->frontend->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
316 dvb->adapter.priv = dev;
318 /* register frontend */
319 result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
321 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
326 /* register demux stuff */
327 dvb->demux.dmx.capabilities =
328 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
329 DMX_MEMORY_BASED_FILTERING;
330 dvb->demux.priv = dvb;
331 dvb->demux.filternum = 256;
332 dvb->demux.feednum = 256;
333 dvb->demux.start_feed = start_feed;
334 dvb->demux.stop_feed = stop_feed;
336 result = dvb_dmx_init(&dvb->demux);
338 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
343 dvb->dmxdev.filternum = 256;
344 dvb->dmxdev.demux = &dvb->demux.dmx;
345 dvb->dmxdev.capabilities = 0;
346 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
348 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
353 dvb->fe_hw.source = DMX_FRONTEND_0;
354 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
356 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
361 dvb->fe_mem.source = DMX_MEMORY_FE;
362 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
364 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
369 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
371 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
376 /* register network adapter */
377 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
381 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
383 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
385 dvb_dmxdev_release(&dvb->dmxdev);
387 dvb_dmx_release(&dvb->demux);
389 dvb_unregister_frontend(dvb->frontend);
391 dvb_frontend_detach(dvb->frontend);
392 dvb_unregister_adapter(&dvb->adapter);
397 static void unregister_dvb(struct em28xx_dvb *dvb)
399 dvb_net_release(&dvb->net);
400 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
401 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
402 dvb_dmxdev_release(&dvb->dmxdev);
403 dvb_dmx_release(&dvb->demux);
404 dvb_unregister_frontend(dvb->frontend);
405 dvb_frontend_detach(dvb->frontend);
406 dvb_unregister_adapter(&dvb->adapter);
410 static int dvb_init(struct em28xx *dev)
413 struct em28xx_dvb *dvb;
415 if (!dev->board.has_dvb) {
416 /* This device does not support the extension */
420 dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
423 printk(KERN_INFO "em28xx_dvb: memory allocation failed\n");
428 em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
430 switch (dev->model) {
431 case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
432 case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
433 case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
434 case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
435 dvb->frontend = dvb_attach(lgdt330x_attach,
436 &em2880_lgdt3303_dev,
438 if (attach_xc3028(0x61, dev) < 0) {
443 case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
444 case EM2880_BOARD_KWORLD_DVB_310U:
445 case EM2880_BOARD_EMPIRE_DUAL_TV:
446 dvb->frontend = dvb_attach(zl10353_attach,
447 &em28xx_zl10353_with_xc3028,
449 if (attach_xc3028(0x61, dev) < 0) {
454 case EM2880_BOARD_TERRATEC_HYBRID_XS:
455 dvb->frontend = dvb_attach(zl10353_attach,
456 &em28xx_terratec_xs_zl10353_xc3028,
458 if (dvb->frontend == NULL) {
459 /* This board could have either a zl10353 or a mt352.
460 If the chip id isn't for zl10353, try mt352 */
462 /* FIXME: make support for mt352 work */
463 printk(KERN_ERR "version of this board with mt352 not "
464 "currently supported\n");
468 if (attach_xc3028(0x61, dev) < 0) {
473 case EM2883_BOARD_KWORLD_HYBRID_330U:
474 case EM2882_BOARD_EVGA_INDTUBE:
475 dvb->frontend = dvb_attach(s5h1409_attach,
476 &em28xx_s5h1409_with_xc3028,
478 if (attach_xc3028(0x61, dev) < 0) {
483 case EM2882_BOARD_KWORLD_ATSC_315U:
484 dvb->frontend = dvb_attach(lgdt330x_attach,
485 &em2880_lgdt3303_dev,
487 if (dvb->frontend != NULL) {
488 if (!dvb_attach(simple_tuner_attach, dvb->frontend,
489 &dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
495 case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
496 #ifdef EM28XX_DRX397XD_SUPPORT
497 /* We don't have the config structure properly populated, so
498 this is commented out for now */
499 dvb->frontend = dvb_attach(drx397xD_attach,
500 &em28xx_drx397xD_with_xc3028,
502 if (attach_xc3028(0x61, dev) < 0) {
509 printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
510 " isn't supported yet\n",
514 if (NULL == dvb->frontend) {
516 "%s/2: frontend initialization failed\n",
521 /* define general-purpose callback pointer */
522 dvb->frontend->callback = em28xx_tuner_callback;
524 /* register everything */
525 result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
530 em28xx_set_mode(dev, EM28XX_SUSPEND);
531 printk(KERN_INFO "Successfully loaded em28xx-dvb\n");
535 em28xx_set_mode(dev, EM28XX_SUSPEND);
541 static int dvb_fini(struct em28xx *dev)
543 if (!dev->board.has_dvb) {
544 /* This device does not support the extension */
549 unregister_dvb(dev->dvb);
556 static struct em28xx_ops dvb_ops = {
558 .name = "Em28xx dvb Extension",
563 static int __init em28xx_dvb_register(void)
565 return em28xx_register_extension(&dvb_ops);
568 static void __exit em28xx_dvb_unregister(void)
570 em28xx_unregister_extension(&dvb_ops);
573 module_init(em28xx_dvb_register);
574 module_exit(em28xx_dvb_unregister);