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
);