2 DVB device driver for cx231xx
4 Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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>
31 #include "dvb_dummy_fe.h"
37 MODULE_DESCRIPTION("driver for cx231xx based DVB cards");
38 MODULE_AUTHOR("Srinivasa Deevi <srinivasa.deevi@conexant.com>");
39 MODULE_LICENSE("GPL");
41 static unsigned int debug;
42 module_param(debug, int, 0644);
43 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
45 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
47 #define dprintk(level, fmt, arg...) do { \
49 printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
52 #define CX231XX_DVB_NUM_BUFS 5
53 #define CX231XX_DVB_MAX_PACKETSIZE 564
54 #define CX231XX_DVB_MAX_PACKETS 64
57 struct dvb_frontend *frontend;
59 /* feed count management */
63 /* general boilerplate stuff */
64 struct dvb_adapter adapter;
65 struct dvb_demux demux;
67 struct dmx_frontend fe_hw;
68 struct dmx_frontend fe_mem;
72 static struct s5h1432_config dvico_s5h1432_config = {
73 .output_mode = S5H1432_SERIAL_OUTPUT,
74 .gpio = S5H1432_GPIO_ON,
75 .qam_if = S5H1432_IF_4000,
76 .vsb_if = S5H1432_IF_4000,
77 .inversion = S5H1432_INVERSION_OFF,
78 .status_mode = S5H1432_DEMODLOCKING,
79 .mpeg_timing = S5H1432_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
82 static struct tda18271_std_map cnxt_rde253s_tda18271_std_map = {
83 .dvbt_6 = { .if_freq = 4000, .agc_mode = 3, .std = 4,
84 .if_lvl = 1, .rfagc_top = 0x37, },
85 .dvbt_7 = { .if_freq = 4000, .agc_mode = 3, .std = 5,
86 .if_lvl = 1, .rfagc_top = 0x37, },
87 .dvbt_8 = { .if_freq = 4000, .agc_mode = 3, .std = 6,
88 .if_lvl = 1, .rfagc_top = 0x37, },
91 static struct tda18271_config cnxt_rde253s_tunerconfig = {
92 .std_map = &cnxt_rde253s_tda18271_std_map,
93 .gate = TDA18271_GATE_ANALOG,
96 static struct s5h1411_config tda18271_s5h1411_config = {
97 .output_mode = S5H1411_SERIAL_OUTPUT,
98 .gpio = S5H1411_GPIO_OFF,
99 .vsb_if = S5H1411_IF_3250,
100 .qam_if = S5H1411_IF_4000,
101 .inversion = S5H1411_INVERSION_ON,
102 .status_mode = S5H1411_DEMODLOCKING,
103 .mpeg_timing = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
105 static struct s5h1411_config xc5000_s5h1411_config = {
106 .output_mode = S5H1411_SERIAL_OUTPUT,
107 .gpio = S5H1411_GPIO_OFF,
108 .vsb_if = S5H1411_IF_3250,
109 .qam_if = S5H1411_IF_3250,
110 .inversion = S5H1411_INVERSION_OFF,
111 .status_mode = S5H1411_DEMODLOCKING,
112 .mpeg_timing = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
115 static struct lgdt3305_config hcw_lgdt3305_config = {
117 .mpeg_mode = LGDT3305_MPEG_SERIAL,
118 .tpclk_edge = LGDT3305_TPCLK_FALLING_EDGE,
119 .tpvalid_polarity = LGDT3305_TP_VALID_HIGH,
121 .spectral_inversion = 1,
126 static struct tda18271_std_map hauppauge_tda18271_std_map = {
127 .atsc_6 = { .if_freq = 3250, .agc_mode = 3, .std = 4,
128 .if_lvl = 1, .rfagc_top = 0x58, },
129 .qam_6 = { .if_freq = 4000, .agc_mode = 3, .std = 5,
130 .if_lvl = 1, .rfagc_top = 0x58, },
133 static struct tda18271_config hcw_tda18271_config = {
134 .std_map = &hauppauge_tda18271_std_map,
135 .gate = TDA18271_GATE_DIGITAL,
138 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
140 char *errmsg = "Unknown";
144 errmsg = "unlinked synchronuously";
147 errmsg = "unlinked asynchronuously";
150 errmsg = "Buffer error (overrun)";
153 errmsg = "Stalled (device not responding)";
156 errmsg = "Babble (bad cable?)";
159 errmsg = "Bit-stuff error (bad cable?)";
162 errmsg = "CRC/Timeout (could be anything)";
165 errmsg = "Device does not respond";
169 dprintk(1, "URB status %d [%s].\n", status, errmsg);
171 dprintk(1, "URB packet %d, status %d [%s].\n",
172 packet, status, errmsg);
176 static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb)
183 if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
186 if (urb->status < 0) {
187 print_err_status(dev, -1, urb->status);
188 if (urb->status == -ENOENT)
192 for (i = 0; i < urb->number_of_packets; i++) {
193 int status = urb->iso_frame_desc[i].status;
196 print_err_status(dev, i, status);
197 if (urb->iso_frame_desc[i].status != -EPROTO)
201 dvb_dmx_swfilter(&dev->dvb->demux,
202 urb->transfer_buffer +
203 urb->iso_frame_desc[i].offset,
204 urb->iso_frame_desc[i].actual_length);
210 static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb)
215 if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
218 if (urb->status < 0) {
219 print_err_status(dev, -1, urb->status);
220 if (urb->status == -ENOENT)
224 /* Feed the transport payload into the kernel demux */
225 dvb_dmx_swfilter(&dev->dvb->demux,
226 urb->transfer_buffer, urb->actual_length);
231 static int start_streaming(struct cx231xx_dvb *dvb)
234 struct cx231xx *dev = dvb->adapter.priv;
237 cx231xx_info("DVB transfer mode is ISO.\n");
238 mutex_lock(&dev->i2c_lock);
239 cx231xx_enable_i2c_for_tuner(dev, I2C_1);
240 cx231xx_set_alt_setting(dev, INDEX_TS1, 4);
241 cx231xx_enable_i2c_for_tuner(dev, I2C_3);
242 mutex_unlock(&dev->i2c_lock);
243 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
247 return cx231xx_init_isoc(dev, CX231XX_DVB_MAX_PACKETS,
248 CX231XX_DVB_NUM_BUFS,
249 dev->ts1_mode.max_pkt_size,
252 cx231xx_info("DVB transfer mode is BULK.\n");
253 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
254 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
258 return cx231xx_init_bulk(dev, CX231XX_DVB_MAX_PACKETS,
259 CX231XX_DVB_NUM_BUFS,
260 dev->ts1_mode.max_pkt_size,
266 static int stop_streaming(struct cx231xx_dvb *dvb)
268 struct cx231xx *dev = dvb->adapter.priv;
271 cx231xx_uninit_isoc(dev);
273 cx231xx_uninit_bulk(dev);
275 cx231xx_set_mode(dev, CX231XX_SUSPEND);
280 static int start_feed(struct dvb_demux_feed *feed)
282 struct dvb_demux *demux = feed->demux;
283 struct cx231xx_dvb *dvb = demux->priv;
286 if (!demux->dmx.frontend)
289 mutex_lock(&dvb->lock);
293 if (dvb->nfeeds == 1) {
294 ret = start_streaming(dvb);
299 mutex_unlock(&dvb->lock);
303 static int stop_feed(struct dvb_demux_feed *feed)
305 struct dvb_demux *demux = feed->demux;
306 struct cx231xx_dvb *dvb = demux->priv;
309 mutex_lock(&dvb->lock);
312 if (0 == dvb->nfeeds)
313 err = stop_streaming(dvb);
315 mutex_unlock(&dvb->lock);
319 /* ------------------------------------------------------------------ */
320 static int cx231xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
322 struct cx231xx *dev = fe->dvb->priv;
325 return cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
327 return cx231xx_set_mode(dev, CX231XX_SUSPEND);
330 /* ------------------------------------------------------------------ */
332 static struct xc5000_config cnxt_rde250_tunerconfig = {
336 static struct xc5000_config cnxt_rdu250_tunerconfig = {
341 /* ------------------------------------------------------------------ */
343 static int attach_xc5000(u8 addr, struct cx231xx *dev)
346 struct dvb_frontend *fe;
347 struct xc5000_config cfg;
349 memset(&cfg, 0, sizeof(cfg));
350 cfg.i2c_adap = &dev->i2c_bus[1].i2c_adap;
353 if (!dev->dvb->frontend) {
354 printk(KERN_ERR "%s/2: dvb frontend not attached. "
355 "Can't attach xc5000\n", dev->name);
359 fe = dvb_attach(xc5000_attach, dev->dvb->frontend, &cfg);
361 printk(KERN_ERR "%s/2: xc5000 attach failed\n", dev->name);
362 dvb_frontend_detach(dev->dvb->frontend);
363 dev->dvb->frontend = NULL;
367 printk(KERN_INFO "%s/2: xc5000 attached\n", dev->name);
373 int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq)
377 if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
379 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
381 if (dops->set_analog_params != NULL) {
382 struct analog_parameters params;
384 params.frequency = freq;
385 params.std = dev->norm;
386 params.mode = 0; /* 0- Air; 1 - cable */
387 /*params.audmode = ; */
389 /* Set the analog parameters to set the frequency */
390 dops->set_analog_params(dev->dvb->frontend, ¶ms);
398 int cx231xx_reset_analog_tuner(struct cx231xx *dev)
402 if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
404 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
406 if (dops->init != NULL && !dev->xc_fw_load_done) {
408 cx231xx_info("Reloading firmware for XC5000\n");
409 status = dops->init(dev->dvb->frontend);
411 dev->xc_fw_load_done = 1;
413 ("XC5000 firmware download completed\n");
415 dev->xc_fw_load_done = 0;
417 ("XC5000 firmware download failed !!!\n");
426 /* ------------------------------------------------------------------ */
428 static int register_dvb(struct cx231xx_dvb *dvb,
429 struct module *module,
430 struct cx231xx *dev, struct device *device)
434 mutex_init(&dvb->lock);
436 /* register adapter */
437 result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
441 "%s: dvb_register_adapter failed (errno = %d)\n",
446 /* Ensure all frontends negotiate bus access */
447 dvb->frontend->ops.ts_bus_ctrl = cx231xx_dvb_bus_ctrl;
449 dvb->adapter.priv = dev;
451 /* register frontend */
452 result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
455 "%s: dvb_register_frontend failed (errno = %d)\n",
460 /* register demux stuff */
461 dvb->demux.dmx.capabilities =
462 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
463 DMX_MEMORY_BASED_FILTERING;
464 dvb->demux.priv = dvb;
465 dvb->demux.filternum = 256;
466 dvb->demux.feednum = 256;
467 dvb->demux.start_feed = start_feed;
468 dvb->demux.stop_feed = stop_feed;
470 result = dvb_dmx_init(&dvb->demux);
472 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
477 dvb->dmxdev.filternum = 256;
478 dvb->dmxdev.demux = &dvb->demux.dmx;
479 dvb->dmxdev.capabilities = 0;
480 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
482 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
487 dvb->fe_hw.source = DMX_FRONTEND_0;
488 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
491 "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
496 dvb->fe_mem.source = DMX_MEMORY_FE;
497 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
500 "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
505 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
508 "%s: connect_frontend failed (errno = %d)\n", dev->name,
513 /* register network adapter */
514 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
518 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
520 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
522 dvb_dmxdev_release(&dvb->dmxdev);
524 dvb_dmx_release(&dvb->demux);
526 dvb_unregister_frontend(dvb->frontend);
528 dvb_frontend_detach(dvb->frontend);
529 dvb_unregister_adapter(&dvb->adapter);
534 static void unregister_dvb(struct cx231xx_dvb *dvb)
536 dvb_net_release(&dvb->net);
537 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
538 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
539 dvb_dmxdev_release(&dvb->dmxdev);
540 dvb_dmx_release(&dvb->demux);
541 dvb_unregister_frontend(dvb->frontend);
542 dvb_frontend_detach(dvb->frontend);
543 dvb_unregister_adapter(&dvb->adapter);
546 static int dvb_init(struct cx231xx *dev)
549 struct cx231xx_dvb *dvb;
551 if (!dev->board.has_dvb) {
552 /* This device does not support the extension */
556 dvb = kzalloc(sizeof(struct cx231xx_dvb), GFP_KERNEL);
559 printk(KERN_INFO "cx231xx_dvb: memory allocation failed\n");
563 dev->cx231xx_set_analog_freq = cx231xx_set_analog_freq;
564 dev->cx231xx_reset_analog_tuner = cx231xx_reset_analog_tuner;
566 mutex_lock(&dev->lock);
567 cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
568 cx231xx_demod_reset(dev);
570 switch (dev->model) {
571 case CX231XX_BOARD_CNXT_CARRAERA:
572 case CX231XX_BOARD_CNXT_RDE_250:
574 dev->dvb->frontend = dvb_attach(s5h1432_attach,
575 &dvico_s5h1432_config,
576 &dev->i2c_bus[2].i2c_adap);
578 if (dev->dvb->frontend == NULL) {
580 ": Failed to attach s5h1432 front end\n");
585 /* define general-purpose callback pointer */
586 dvb->frontend->callback = cx231xx_tuner_callback;
588 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
589 &dev->i2c_bus[1].i2c_adap,
590 &cnxt_rde250_tunerconfig)) {
596 case CX231XX_BOARD_CNXT_SHELBY:
597 case CX231XX_BOARD_CNXT_RDU_250:
599 dev->dvb->frontend = dvb_attach(s5h1411_attach,
600 &xc5000_s5h1411_config,
601 &dev->i2c_bus[2].i2c_adap);
603 if (dev->dvb->frontend == NULL) {
605 ": Failed to attach dummy front end\n");
610 /* define general-purpose callback pointer */
611 dvb->frontend->callback = cx231xx_tuner_callback;
613 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
614 &dev->i2c_bus[1].i2c_adap,
615 &cnxt_rdu250_tunerconfig)) {
620 case CX231XX_BOARD_CNXT_RDE_253S:
622 dev->dvb->frontend = dvb_attach(s5h1432_attach,
623 &dvico_s5h1432_config,
624 &dev->i2c_bus[2].i2c_adap);
626 if (dev->dvb->frontend == NULL) {
628 ": Failed to attach s5h1432 front end\n");
633 /* define general-purpose callback pointer */
634 dvb->frontend->callback = cx231xx_tuner_callback;
636 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
637 0x60, &dev->i2c_bus[1].i2c_adap,
638 &cnxt_rde253s_tunerconfig)) {
643 case CX231XX_BOARD_CNXT_RDU_253S:
645 dev->dvb->frontend = dvb_attach(s5h1411_attach,
646 &tda18271_s5h1411_config,
647 &dev->i2c_bus[2].i2c_adap);
649 if (dev->dvb->frontend == NULL) {
651 ": Failed to attach dummy front end\n");
656 /* define general-purpose callback pointer */
657 dvb->frontend->callback = cx231xx_tuner_callback;
659 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
660 0x60, &dev->i2c_bus[1].i2c_adap,
661 &cnxt_rde253s_tunerconfig)) {
666 case CX231XX_BOARD_HAUPPAUGE_EXETER:
668 printk(KERN_INFO "%s: looking for tuner / demod on i2c bus: %d\n",
669 __func__, i2c_adapter_id(&dev->i2c_bus[1].i2c_adap));
671 dev->dvb->frontend = dvb_attach(lgdt3305_attach,
672 &hcw_lgdt3305_config,
673 &dev->i2c_bus[1].i2c_adap);
675 if (dev->dvb->frontend == NULL) {
677 ": Failed to attach LG3305 front end\n");
682 /* define general-purpose callback pointer */
683 dvb->frontend->callback = cx231xx_tuner_callback;
685 dvb_attach(tda18271_attach, dev->dvb->frontend,
686 0x60, &dev->i2c_bus[1].i2c_adap,
687 &hcw_tda18271_config);
692 printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
693 " isn't supported yet\n", dev->name);
696 if (NULL == dvb->frontend) {
698 "%s/2: frontend initialization failed\n", dev->name);
703 /* register everything */
704 result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
710 printk(KERN_INFO "Successfully loaded cx231xx-dvb\n");
713 cx231xx_set_mode(dev, CX231XX_SUSPEND);
714 mutex_unlock(&dev->lock);
723 static int dvb_fini(struct cx231xx *dev)
725 if (!dev->board.has_dvb) {
726 /* This device does not support the extension */
731 unregister_dvb(dev->dvb);
738 static struct cx231xx_ops dvb_ops = {
740 .name = "Cx231xx dvb Extension",
745 static int __init cx231xx_dvb_register(void)
747 return cx231xx_register_extension(&dvb_ops);
750 static void __exit cx231xx_dvb_unregister(void)
752 cx231xx_unregister_extension(&dvb_ops);
755 module_init(cx231xx_dvb_register);
756 module_exit(cx231xx_dvb_unregister);