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"
37 #include "mt352_priv.h"
41 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
42 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
43 MODULE_LICENSE("GPL");
45 static unsigned int debug
;
46 module_param(debug
, int, 0644);
47 MODULE_PARM_DESC(debug
, "enable debug messages [dvb]");
49 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr
);
51 #define dprintk(level, fmt, arg...) do { \
53 printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
56 #define EM28XX_DVB_NUM_BUFS 5
57 #define EM28XX_DVB_MAX_PACKETS 64
60 struct dvb_frontend
*frontend
;
62 /* feed count management */
66 /* general boilerplate stuff */
67 struct dvb_adapter adapter
;
68 struct dvb_demux demux
;
70 struct dmx_frontend fe_hw
;
71 struct dmx_frontend fe_mem
;
76 static inline void print_err_status(struct em28xx
*dev
,
77 int packet
, int status
)
79 char *errmsg
= "Unknown";
83 errmsg
= "unlinked synchronuously";
86 errmsg
= "unlinked asynchronuously";
89 errmsg
= "Buffer error (overrun)";
92 errmsg
= "Stalled (device not responding)";
95 errmsg
= "Babble (bad cable?)";
98 errmsg
= "Bit-stuff error (bad cable?)";
101 errmsg
= "CRC/Timeout (could be anything)";
104 errmsg
= "Device does not respond";
108 dprintk(1, "URB status %d [%s].\n", status
, errmsg
);
110 dprintk(1, "URB packet %d, status %d [%s].\n",
111 packet
, status
, errmsg
);
115 static inline int dvb_isoc_copy(struct em28xx
*dev
, struct urb
*urb
)
122 if ((dev
->state
& DEV_DISCONNECTED
) || (dev
->state
& DEV_MISCONFIGURED
))
125 if (urb
->status
< 0) {
126 print_err_status(dev
, -1, urb
->status
);
127 if (urb
->status
== -ENOENT
)
131 for (i
= 0; i
< urb
->number_of_packets
; i
++) {
132 int status
= urb
->iso_frame_desc
[i
].status
;
135 print_err_status(dev
, i
, status
);
136 if (urb
->iso_frame_desc
[i
].status
!= -EPROTO
)
140 dvb_dmx_swfilter(&dev
->dvb
->demux
, urb
->transfer_buffer
+
141 urb
->iso_frame_desc
[i
].offset
,
142 urb
->iso_frame_desc
[i
].actual_length
);
148 static int start_streaming(struct em28xx_dvb
*dvb
)
151 struct em28xx
*dev
= dvb
->adapter
.priv
;
152 int max_dvb_packet_size
;
154 usb_set_interface(dev
->udev
, 0, 1);
155 rc
= em28xx_set_mode(dev
, EM28XX_DIGITAL_MODE
);
159 max_dvb_packet_size
= em28xx_isoc_dvb_max_packetsize(dev
);
161 return em28xx_init_isoc(dev
, EM28XX_DVB_MAX_PACKETS
,
162 EM28XX_DVB_NUM_BUFS
, max_dvb_packet_size
,
166 static int stop_streaming(struct em28xx_dvb
*dvb
)
168 struct em28xx
*dev
= dvb
->adapter
.priv
;
170 em28xx_uninit_isoc(dev
);
172 em28xx_set_mode(dev
, EM28XX_SUSPEND
);
177 static int start_feed(struct dvb_demux_feed
*feed
)
179 struct dvb_demux
*demux
= feed
->demux
;
180 struct em28xx_dvb
*dvb
= demux
->priv
;
183 if (!demux
->dmx
.frontend
)
186 mutex_lock(&dvb
->lock
);
190 if (dvb
->nfeeds
== 1) {
191 ret
= start_streaming(dvb
);
196 mutex_unlock(&dvb
->lock
);
200 static int stop_feed(struct dvb_demux_feed
*feed
)
202 struct dvb_demux
*demux
= feed
->demux
;
203 struct em28xx_dvb
*dvb
= demux
->priv
;
206 mutex_lock(&dvb
->lock
);
209 if (0 == dvb
->nfeeds
)
210 err
= stop_streaming(dvb
);
212 mutex_unlock(&dvb
->lock
);
218 /* ------------------------------------------------------------------ */
219 static int em28xx_dvb_bus_ctrl(struct dvb_frontend
*fe
, int acquire
)
221 struct em28xx
*dev
= fe
->dvb
->priv
;
224 return em28xx_set_mode(dev
, EM28XX_DIGITAL_MODE
);
226 return em28xx_set_mode(dev
, EM28XX_SUSPEND
);
229 /* ------------------------------------------------------------------ */
231 static struct lgdt330x_config em2880_lgdt3303_dev
= {
232 .demod_address
= 0x0e,
233 .demod_chip
= LGDT3303
,
236 static struct lgdt3305_config em2870_lgdt3304_dev
= {
238 .demod_chip
= LGDT3304
,
239 .spectral_inversion
= 1,
241 .mpeg_mode
= LGDT3305_MPEG_PARALLEL
,
242 .tpclk_edge
= LGDT3305_TPCLK_FALLING_EDGE
,
243 .tpvalid_polarity
= LGDT3305_TP_VALID_HIGH
,
248 static struct zl10353_config em28xx_zl10353_with_xc3028
= {
249 .demod_address
= (0x1e >> 1),
255 static struct s5h1409_config em28xx_s5h1409_with_xc3028
= {
256 .demod_address
= 0x32 >> 1,
257 .output_mode
= S5H1409_PARALLEL_OUTPUT
,
258 .gpio
= S5H1409_GPIO_OFF
,
259 .inversion
= S5H1409_INVERSION_OFF
,
260 .status_mode
= S5H1409_DEMODLOCKING
,
261 .mpeg_timing
= S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
264 static struct tda18271_std_map kworld_a340_std_map
= {
265 .atsc_6
= { .if_freq
= 3250, .agc_mode
= 3, .std
= 0,
266 .if_lvl
= 1, .rfagc_top
= 0x37, },
267 .qam_6
= { .if_freq
= 4000, .agc_mode
= 3, .std
= 1,
268 .if_lvl
= 1, .rfagc_top
= 0x37, },
271 static struct tda18271_config kworld_a340_config
= {
272 .std_map
= &kworld_a340_std_map
,
275 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate
= {
276 .demod_address
= (0x1e >> 1),
278 .disable_i2c_gate_ctrl
= 1,
283 #ifdef EM28XX_DRX397XD_SUPPORT
284 /* [TODO] djh - not sure yet what the device config needs to contain */
285 static struct drx397xD_config em28xx_drx397xD_with_xc3028
= {
286 .demod_address
= (0xe0 >> 1),
290 static int mt352_terratec_xs_init(struct dvb_frontend
*fe
)
292 /* Values extracted from a USB trace of the Terratec Windows driver */
293 static u8 clock_config
[] = { CLOCK_CTL
, 0x38, 0x2c };
294 static u8 reset
[] = { RESET
, 0x80 };
295 static u8 adc_ctl_1_cfg
[] = { ADC_CTL_1
, 0x40 };
296 static u8 agc_cfg
[] = { AGC_TARGET
, 0x28, 0xa0 };
297 static u8 input_freq_cfg
[] = { INPUT_FREQ_1
, 0x31, 0xb8 };
298 static u8 rs_err_cfg
[] = { RS_ERR_PER_1
, 0x00, 0x4d };
299 static u8 capt_range_cfg
[] = { CAPT_RANGE
, 0x32 };
300 static u8 trl_nom_cfg
[] = { TRL_NOMINAL_RATE_1
, 0x64, 0x00 };
301 static u8 tps_given_cfg
[] = { TPS_GIVEN_1
, 0x40, 0x80, 0x50 };
302 static u8 tuner_go
[] = { TUNER_GO
, 0x01};
304 mt352_write(fe
, clock_config
, sizeof(clock_config
));
306 mt352_write(fe
, reset
, sizeof(reset
));
307 mt352_write(fe
, adc_ctl_1_cfg
, sizeof(adc_ctl_1_cfg
));
308 mt352_write(fe
, agc_cfg
, sizeof(agc_cfg
));
309 mt352_write(fe
, input_freq_cfg
, sizeof(input_freq_cfg
));
310 mt352_write(fe
, rs_err_cfg
, sizeof(rs_err_cfg
));
311 mt352_write(fe
, capt_range_cfg
, sizeof(capt_range_cfg
));
312 mt352_write(fe
, trl_nom_cfg
, sizeof(trl_nom_cfg
));
313 mt352_write(fe
, tps_given_cfg
, sizeof(tps_given_cfg
));
314 mt352_write(fe
, tuner_go
, sizeof(tuner_go
));
318 static struct mt352_config terratec_xs_mt352_cfg
= {
319 .demod_address
= (0x1e >> 1),
322 .demod_init
= mt352_terratec_xs_init
,
325 static struct tda10023_config em28xx_tda10023_config
= {
326 .demod_address
= 0x0c,
330 /* ------------------------------------------------------------------ */
332 static int attach_xc3028(u8 addr
, struct em28xx
*dev
)
334 struct dvb_frontend
*fe
;
335 struct xc2028_config cfg
;
337 memset(&cfg
, 0, sizeof(cfg
));
338 cfg
.i2c_adap
= &dev
->i2c_adap
;
341 if (!dev
->dvb
->frontend
) {
342 em28xx_errdev("/2: dvb frontend not attached. "
343 "Can't attach xc3028\n");
347 fe
= dvb_attach(xc2028_attach
, dev
->dvb
->frontend
, &cfg
);
349 em28xx_errdev("/2: xc3028 attach failed\n");
350 dvb_frontend_detach(dev
->dvb
->frontend
);
351 dev
->dvb
->frontend
= NULL
;
355 em28xx_info("%s/2: xc3028 attached\n", dev
->name
);
360 /* ------------------------------------------------------------------ */
362 static int register_dvb(struct em28xx_dvb
*dvb
,
363 struct module
*module
,
365 struct device
*device
)
369 mutex_init(&dvb
->lock
);
371 /* register adapter */
372 result
= dvb_register_adapter(&dvb
->adapter
, dev
->name
, module
, device
,
375 printk(KERN_WARNING
"%s: dvb_register_adapter failed (errno = %d)\n",
380 /* Ensure all frontends negotiate bus access */
381 dvb
->frontend
->ops
.ts_bus_ctrl
= em28xx_dvb_bus_ctrl
;
383 dvb
->adapter
.priv
= dev
;
385 /* register frontend */
386 result
= dvb_register_frontend(&dvb
->adapter
, dvb
->frontend
);
388 printk(KERN_WARNING
"%s: dvb_register_frontend failed (errno = %d)\n",
393 /* register demux stuff */
394 dvb
->demux
.dmx
.capabilities
=
395 DMX_TS_FILTERING
| DMX_SECTION_FILTERING
|
396 DMX_MEMORY_BASED_FILTERING
;
397 dvb
->demux
.priv
= dvb
;
398 dvb
->demux
.filternum
= 256;
399 dvb
->demux
.feednum
= 256;
400 dvb
->demux
.start_feed
= start_feed
;
401 dvb
->demux
.stop_feed
= stop_feed
;
403 result
= dvb_dmx_init(&dvb
->demux
);
405 printk(KERN_WARNING
"%s: dvb_dmx_init failed (errno = %d)\n",
410 dvb
->dmxdev
.filternum
= 256;
411 dvb
->dmxdev
.demux
= &dvb
->demux
.dmx
;
412 dvb
->dmxdev
.capabilities
= 0;
413 result
= dvb_dmxdev_init(&dvb
->dmxdev
, &dvb
->adapter
);
415 printk(KERN_WARNING
"%s: dvb_dmxdev_init failed (errno = %d)\n",
420 dvb
->fe_hw
.source
= DMX_FRONTEND_0
;
421 result
= dvb
->demux
.dmx
.add_frontend(&dvb
->demux
.dmx
, &dvb
->fe_hw
);
423 printk(KERN_WARNING
"%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
428 dvb
->fe_mem
.source
= DMX_MEMORY_FE
;
429 result
= dvb
->demux
.dmx
.add_frontend(&dvb
->demux
.dmx
, &dvb
->fe_mem
);
431 printk(KERN_WARNING
"%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
436 result
= dvb
->demux
.dmx
.connect_frontend(&dvb
->demux
.dmx
, &dvb
->fe_hw
);
438 printk(KERN_WARNING
"%s: connect_frontend failed (errno = %d)\n",
443 /* register network adapter */
444 dvb_net_init(&dvb
->adapter
, &dvb
->net
, &dvb
->demux
.dmx
);
448 dvb
->demux
.dmx
.remove_frontend(&dvb
->demux
.dmx
, &dvb
->fe_mem
);
450 dvb
->demux
.dmx
.remove_frontend(&dvb
->demux
.dmx
, &dvb
->fe_hw
);
452 dvb_dmxdev_release(&dvb
->dmxdev
);
454 dvb_dmx_release(&dvb
->demux
);
456 dvb_unregister_frontend(dvb
->frontend
);
458 dvb_frontend_detach(dvb
->frontend
);
459 dvb_unregister_adapter(&dvb
->adapter
);
464 static void unregister_dvb(struct em28xx_dvb
*dvb
)
466 dvb_net_release(&dvb
->net
);
467 dvb
->demux
.dmx
.remove_frontend(&dvb
->demux
.dmx
, &dvb
->fe_mem
);
468 dvb
->demux
.dmx
.remove_frontend(&dvb
->demux
.dmx
, &dvb
->fe_hw
);
469 dvb_dmxdev_release(&dvb
->dmxdev
);
470 dvb_dmx_release(&dvb
->demux
);
471 dvb_unregister_frontend(dvb
->frontend
);
472 dvb_frontend_detach(dvb
->frontend
);
473 dvb_unregister_adapter(&dvb
->adapter
);
477 static int dvb_init(struct em28xx
*dev
)
480 struct em28xx_dvb
*dvb
;
482 if (!dev
->board
.has_dvb
) {
483 /* This device does not support the extension */
487 dvb
= kzalloc(sizeof(struct em28xx_dvb
), GFP_KERNEL
);
490 em28xx_info("em28xx_dvb: memory allocation failed\n");
495 mutex_lock(&dev
->lock
);
496 em28xx_set_mode(dev
, EM28XX_DIGITAL_MODE
);
498 switch (dev
->model
) {
499 case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850
:
500 case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950
:
501 case EM2880_BOARD_PINNACLE_PCTV_HD_PRO
:
502 case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600
:
503 dvb
->frontend
= dvb_attach(lgdt330x_attach
,
504 &em2880_lgdt3303_dev
,
506 if (attach_xc3028(0x61, dev
) < 0) {
511 case EM2880_BOARD_KWORLD_DVB_310U
:
512 dvb
->frontend
= dvb_attach(zl10353_attach
,
513 &em28xx_zl10353_with_xc3028
,
515 if (attach_xc3028(0x61, dev
) < 0) {
520 case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900
:
521 case EM2882_BOARD_TERRATEC_HYBRID_XS
:
522 case EM2880_BOARD_EMPIRE_DUAL_TV
:
523 dvb
->frontend
= dvb_attach(zl10353_attach
,
524 &em28xx_zl10353_xc3028_no_i2c_gate
,
526 if (attach_xc3028(0x61, dev
) < 0) {
531 case EM2880_BOARD_TERRATEC_HYBRID_XS
:
532 case EM2880_BOARD_TERRATEC_HYBRID_XS_FR
:
533 case EM2881_BOARD_PINNACLE_HYBRID_PRO
:
534 case EM2882_BOARD_DIKOM_DK300
:
535 case EM2882_BOARD_KWORLD_VS_DVBT
:
536 dvb
->frontend
= dvb_attach(zl10353_attach
,
537 &em28xx_zl10353_xc3028_no_i2c_gate
,
539 if (dvb
->frontend
== NULL
) {
540 /* This board could have either a zl10353 or a mt352.
541 If the chip id isn't for zl10353, try mt352 */
542 dvb
->frontend
= dvb_attach(mt352_attach
,
543 &terratec_xs_mt352_cfg
,
547 if (attach_xc3028(0x61, dev
) < 0) {
552 case EM2883_BOARD_KWORLD_HYBRID_330U
:
553 case EM2882_BOARD_EVGA_INDTUBE
:
554 dvb
->frontend
= dvb_attach(s5h1409_attach
,
555 &em28xx_s5h1409_with_xc3028
,
557 if (attach_xc3028(0x61, dev
) < 0) {
562 case EM2882_BOARD_KWORLD_ATSC_315U
:
563 dvb
->frontend
= dvb_attach(lgdt330x_attach
,
564 &em2880_lgdt3303_dev
,
566 if (dvb
->frontend
!= NULL
) {
567 if (!dvb_attach(simple_tuner_attach
, dvb
->frontend
,
568 &dev
->i2c_adap
, 0x61, TUNER_THOMSON_DTT761X
)) {
574 case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2
:
575 #ifdef EM28XX_DRX397XD_SUPPORT
576 /* We don't have the config structure properly populated, so
577 this is commented out for now */
578 dvb
->frontend
= dvb_attach(drx397xD_attach
,
579 &em28xx_drx397xD_with_xc3028
,
581 if (attach_xc3028(0x61, dev
) < 0) {
587 case EM2870_BOARD_REDDO_DVB_C_USB_BOX
:
588 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
589 dvb
->frontend
= dvb_attach(tda10023_attach
,
590 &em28xx_tda10023_config
,
591 &dev
->i2c_adap
, 0x48);
593 if (!dvb_attach(simple_tuner_attach
, dvb
->frontend
,
594 &dev
->i2c_adap
, 0x60, TUNER_PHILIPS_CU1216L
)) {
600 case EM2870_BOARD_KWORLD_A340
:
601 dvb
->frontend
= dvb_attach(lgdt3305_attach
,
602 &em2870_lgdt3304_dev
,
604 if (dvb
->frontend
!= NULL
)
605 dvb_attach(tda18271_attach
, dvb
->frontend
, 0x60,
606 &dev
->i2c_adap
, &kworld_a340_config
);
609 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
610 " isn't supported yet\n");
613 if (NULL
== dvb
->frontend
) {
614 em28xx_errdev("/2: frontend initialization failed\n");
618 /* define general-purpose callback pointer */
619 dvb
->frontend
->callback
= em28xx_tuner_callback
;
621 /* register everything */
622 result
= register_dvb(dvb
, THIS_MODULE
, dev
, &dev
->udev
->dev
);
627 em28xx_info("Successfully loaded em28xx-dvb\n");
629 em28xx_set_mode(dev
, EM28XX_SUSPEND
);
630 mutex_unlock(&dev
->lock
);
639 static int dvb_fini(struct em28xx
*dev
)
641 if (!dev
->board
.has_dvb
) {
642 /* This device does not support the extension */
647 unregister_dvb(dev
->dvb
);
655 static struct em28xx_ops dvb_ops
= {
657 .name
= "Em28xx dvb Extension",
662 static int __init
em28xx_dvb_register(void)
664 return em28xx_register_extension(&dvb_ops
);
667 static void __exit
em28xx_dvb_unregister(void)
669 em28xx_unregister_extension(&dvb_ops
);
672 module_init(em28xx_dvb_register
);
673 module_exit(em28xx_dvb_unregister
);