blob: 563dd2b1c8e90e8d9efc0f8f4b967eb8b0fb7bdb [file] [log] [blame]
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -03001/*
2 DVB device driver for em28xx
3
4 (c) 2008 Mauro Carvalho Chehab <mchehab@infradead.org>
5
Devin Heitmuellerbdfbf952008-04-17 21:38:27 -03006 (c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com>
7 - Fixes for the driver to properly work with HVR-950
Devin Heitmueller4fd305b2008-06-04 13:43:46 -03008 - Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick
Devin Heitmuellere14b3652008-07-26 11:04:33 -03009 - Fixes for the driver to properly work with AMD ATI TV Wonder HD 600
Devin Heitmuellerbdfbf952008-04-17 21:38:27 -030010
Aidan Thornton3421b7782008-04-17 21:40:36 -030011 (c) 2008 Aidan Thornton <makosoft@googlemail.com>
12
13 Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -030014 (c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
15 (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
16
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.
20 */
21
22#include <linux/kernel.h>
23#include <linux/usb.h>
24
25#include "em28xx.h"
26#include <media/v4l2-common.h>
27#include <media/videobuf-vmalloc.h>
Franklin Mengd7de5d8f2009-06-06 17:05:02 -030028#include <media/tuner.h>
29#include "tuner-simple.h"
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -030030
31#include "lgdt330x.h"
Aidan Thornton7e6388a2008-04-17 21:40:03 -030032#include "zl10353.h"
Robert Krakora6e7b9ea2009-01-18 21:59:34 -030033#include "s5h1409.h"
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -030034
35MODULE_DESCRIPTION("driver for em28xx based DVB cards");
36MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
37MODULE_LICENSE("GPL");
38
39static unsigned int debug;
40module_param(debug, int, 0644);
41MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
42
43DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
44
45#define dprintk(level, fmt, arg...) do { \
46if (debug >= level) \
Aidan Thornton3421b7782008-04-17 21:40:36 -030047 printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -030048} while (0)
49
Aidan Thornton3421b7782008-04-17 21:40:36 -030050#define EM28XX_DVB_NUM_BUFS 5
Aidan Thornton3421b7782008-04-17 21:40:36 -030051#define EM28XX_DVB_MAX_PACKETS 64
52
53struct em28xx_dvb {
54 struct dvb_frontend *frontend;
55
56 /* feed count management */
57 struct mutex lock;
58 int nfeeds;
59
60 /* general boilerplate stuff */
61 struct dvb_adapter adapter;
62 struct dvb_demux demux;
63 struct dmxdev dmxdev;
64 struct dmx_frontend fe_hw;
65 struct dmx_frontend fe_mem;
66 struct dvb_net net;
67};
68
69
70static inline void print_err_status(struct em28xx *dev,
71 int packet, int status)
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -030072{
Aidan Thornton3421b7782008-04-17 21:40:36 -030073 char *errmsg = "Unknown";
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -030074
Aidan Thornton3421b7782008-04-17 21:40:36 -030075 switch (status) {
76 case -ENOENT:
77 errmsg = "unlinked synchronuously";
78 break;
79 case -ECONNRESET:
80 errmsg = "unlinked asynchronuously";
81 break;
82 case -ENOSR:
83 errmsg = "Buffer error (overrun)";
84 break;
85 case -EPIPE:
86 errmsg = "Stalled (device not responding)";
87 break;
88 case -EOVERFLOW:
89 errmsg = "Babble (bad cable?)";
90 break;
91 case -EPROTO:
92 errmsg = "Bit-stuff error (bad cable?)";
93 break;
94 case -EILSEQ:
95 errmsg = "CRC/Timeout (could be anything)";
96 break;
97 case -ETIME:
98 errmsg = "Device does not respond";
99 break;
100 }
101 if (packet < 0) {
102 dprintk(1, "URB status %d [%s].\n", status, errmsg);
103 } else {
Douglas Schilling Landgraf6ea54d92008-04-17 21:41:10 -0300104 dprintk(1, "URB packet %d, status %d [%s].\n",
105 packet, status, errmsg);
Aidan Thornton3421b7782008-04-17 21:40:36 -0300106 }
107}
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300108
Aidan Thornton3421b7782008-04-17 21:40:36 -0300109static inline int dvb_isoc_copy(struct em28xx *dev, struct urb *urb)
110{
111 int i;
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300112
Aidan Thornton3421b7782008-04-17 21:40:36 -0300113 if (!dev)
114 return 0;
115
116 if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
117 return 0;
118
119 if (urb->status < 0) {
120 print_err_status(dev, -1, urb->status);
121 if (urb->status == -ENOENT)
122 return 0;
123 }
124
125 for (i = 0; i < urb->number_of_packets; i++) {
126 int status = urb->iso_frame_desc[i].status;
127
128 if (status < 0) {
129 print_err_status(dev, i, status);
130 if (urb->iso_frame_desc[i].status != -EPROTO)
131 continue;
132 }
133
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);
137 }
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300138
139 return 0;
140}
141
Douglas Schilling Landgraf6ea54d92008-04-17 21:41:10 -0300142static int start_streaming(struct em28xx_dvb *dvb)
143{
Mauro Carvalho Chehabc67ec532008-04-17 21:48:00 -0300144 int rc;
Aidan Thornton3421b7782008-04-17 21:40:36 -0300145 struct em28xx *dev = dvb->adapter.priv;
Devin Heitmuellerd18e2fd2009-05-16 17:09:28 -0300146 int max_dvb_packet_size;
Aidan Thornton3421b7782008-04-17 21:40:36 -0300147
148 usb_set_interface(dev->udev, 0, 1);
Mauro Carvalho Chehabc67ec532008-04-17 21:48:00 -0300149 rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
150 if (rc < 0)
151 return rc;
Aidan Thornton3421b7782008-04-17 21:40:36 -0300152
Devin Heitmuellerd18e2fd2009-05-16 17:09:28 -0300153 max_dvb_packet_size = em28xx_isoc_dvb_max_packetsize(dev);
154
Aidan Thornton3421b7782008-04-17 21:40:36 -0300155 return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS,
Devin Heitmuellerd18e2fd2009-05-16 17:09:28 -0300156 EM28XX_DVB_NUM_BUFS, max_dvb_packet_size,
Mauro Carvalho Chehabc67ec532008-04-17 21:48:00 -0300157 dvb_isoc_copy);
Aidan Thornton3421b7782008-04-17 21:40:36 -0300158}
159
Douglas Schilling Landgraf6ea54d92008-04-17 21:41:10 -0300160static int stop_streaming(struct em28xx_dvb *dvb)
161{
Aidan Thornton3421b7782008-04-17 21:40:36 -0300162 struct em28xx *dev = dvb->adapter.priv;
163
164 em28xx_uninit_isoc(dev);
Mauro Carvalho Chehabc67ec532008-04-17 21:48:00 -0300165
Mauro Carvalho Chehab2fe3e2e2008-11-27 09:10:40 -0300166 em28xx_set_mode(dev, EM28XX_SUSPEND);
Mauro Carvalho Chehabc67ec532008-04-17 21:48:00 -0300167
Aidan Thornton3421b7782008-04-17 21:40:36 -0300168 return 0;
169}
170
171static int start_feed(struct dvb_demux_feed *feed)
172{
173 struct dvb_demux *demux = feed->demux;
174 struct em28xx_dvb *dvb = demux->priv;
175 int rc, ret;
176
177 if (!demux->dmx.frontend)
178 return -EINVAL;
179
180 mutex_lock(&dvb->lock);
181 dvb->nfeeds++;
182 rc = dvb->nfeeds;
183
184 if (dvb->nfeeds == 1) {
185 ret = start_streaming(dvb);
Douglas Schilling Landgraf6ea54d92008-04-17 21:41:10 -0300186 if (ret < 0)
187 rc = ret;
Aidan Thornton3421b7782008-04-17 21:40:36 -0300188 }
189
190 mutex_unlock(&dvb->lock);
191 return rc;
192}
193
194static int stop_feed(struct dvb_demux_feed *feed)
195{
196 struct dvb_demux *demux = feed->demux;
197 struct em28xx_dvb *dvb = demux->priv;
198 int err = 0;
199
200 mutex_lock(&dvb->lock);
201 dvb->nfeeds--;
Douglas Schilling Landgraf6ea54d92008-04-17 21:41:10 -0300202
203 if (0 == dvb->nfeeds)
Aidan Thornton3421b7782008-04-17 21:40:36 -0300204 err = stop_streaming(dvb);
Douglas Schilling Landgraf6ea54d92008-04-17 21:41:10 -0300205
Aidan Thornton3421b7782008-04-17 21:40:36 -0300206 mutex_unlock(&dvb->lock);
207 return err;
208}
209
210
Mauro Carvalho Chehabe3569ab2008-04-17 21:49:20 -0300211
212/* ------------------------------------------------------------------ */
213static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
214{
215 struct em28xx *dev = fe->dvb->priv;
216
217 if (acquire)
218 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
219 else
Mauro Carvalho Chehab2fe3e2e2008-11-27 09:10:40 -0300220 return em28xx_set_mode(dev, EM28XX_SUSPEND);
Mauro Carvalho Chehabe3569ab2008-04-17 21:49:20 -0300221}
222
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300223/* ------------------------------------------------------------------ */
224
Mauro Carvalho Chehab227ad4a2008-04-17 21:37:40 -0300225static struct lgdt330x_config em2880_lgdt3303_dev = {
226 .demod_address = 0x0e,
227 .demod_chip = LGDT3303,
228};
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300229
Aidan Thornton7e6388a2008-04-17 21:40:03 -0300230static struct zl10353_config em28xx_zl10353_with_xc3028 = {
231 .demod_address = (0x1e >> 1),
232 .no_tuner = 1,
233 .parallel_ts = 1,
234 .if2 = 45600,
235};
236
Robert Krakora6e7b9ea2009-01-18 21:59:34 -0300237static 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
244};
245
Devin Heitmueller17d9d552008-06-08 10:22:03 -0300246#ifdef EM28XX_DRX397XD_SUPPORT
247/* [TODO] djh - not sure yet what the device config needs to contain */
248static struct drx397xD_config em28xx_drx397xD_with_xc3028 = {
249 .demod_address = (0xe0 >> 1),
250};
251#endif
252
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300253/* ------------------------------------------------------------------ */
254
255static int attach_xc3028(u8 addr, struct em28xx *dev)
256{
257 struct dvb_frontend *fe;
Mauro Carvalho Chehab3ca9c092008-04-17 21:37:53 -0300258 struct xc2028_config cfg;
259
Douglas Schilling Landgraf6ea54d92008-04-17 21:41:10 -0300260 memset(&cfg, 0, sizeof(cfg));
Mauro Carvalho Chehab3ca9c092008-04-17 21:37:53 -0300261 cfg.i2c_adap = &dev->i2c_adap;
262 cfg.i2c_addr = addr;
Mauro Carvalho Chehab3ca9c092008-04-17 21:37:53 -0300263
Aidan Thornton3421b7782008-04-17 21:40:36 -0300264 if (!dev->dvb->frontend) {
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300265 printk(KERN_ERR "%s/2: dvb frontend not attached. "
266 "Can't attach xc3028\n",
267 dev->name);
268 return -EINVAL;
269 }
270
Aidan Thornton3421b7782008-04-17 21:40:36 -0300271 fe = dvb_attach(xc2028_attach, dev->dvb->frontend, &cfg);
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300272 if (!fe) {
273 printk(KERN_ERR "%s/2: xc3028 attach failed\n",
274 dev->name);
Aidan Thornton3421b7782008-04-17 21:40:36 -0300275 dvb_frontend_detach(dev->dvb->frontend);
Aidan Thornton3421b7782008-04-17 21:40:36 -0300276 dev->dvb->frontend = NULL;
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300277 return -EINVAL;
278 }
279
280 printk(KERN_INFO "%s/2: xc3028 attached\n", dev->name);
281
282 return 0;
283}
284
Aidan Thornton3421b7782008-04-17 21:40:36 -0300285/* ------------------------------------------------------------------ */
286
Hans Verkuild45b9b82008-09-04 03:33:43 -0300287static int register_dvb(struct em28xx_dvb *dvb,
Aidan Thornton3421b7782008-04-17 21:40:36 -0300288 struct module *module,
289 struct em28xx *dev,
290 struct device *device)
291{
292 int result;
293
294 mutex_init(&dvb->lock);
295
296 /* register adapter */
297 result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
298 adapter_nr);
299 if (result < 0) {
300 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
301 dev->name, result);
302 goto fail_adapter;
303 }
Mauro Carvalho Chehabe3569ab2008-04-17 21:49:20 -0300304
305 /* Ensure all frontends negotiate bus access */
306 dvb->frontend->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
307
Aidan Thornton3421b7782008-04-17 21:40:36 -0300308 dvb->adapter.priv = dev;
309
310 /* register frontend */
311 result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
312 if (result < 0) {
313 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
314 dev->name, result);
315 goto fail_frontend;
316 }
317
318 /* register demux stuff */
319 dvb->demux.dmx.capabilities =
320 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
321 DMX_MEMORY_BASED_FILTERING;
322 dvb->demux.priv = dvb;
323 dvb->demux.filternum = 256;
324 dvb->demux.feednum = 256;
325 dvb->demux.start_feed = start_feed;
326 dvb->demux.stop_feed = stop_feed;
Mauro Carvalho Chehabe3569ab2008-04-17 21:49:20 -0300327
Aidan Thornton3421b7782008-04-17 21:40:36 -0300328 result = dvb_dmx_init(&dvb->demux);
329 if (result < 0) {
330 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
331 dev->name, result);
332 goto fail_dmx;
333 }
334
335 dvb->dmxdev.filternum = 256;
336 dvb->dmxdev.demux = &dvb->demux.dmx;
337 dvb->dmxdev.capabilities = 0;
338 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
339 if (result < 0) {
340 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
341 dev->name, result);
342 goto fail_dmxdev;
343 }
344
345 dvb->fe_hw.source = DMX_FRONTEND_0;
346 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
347 if (result < 0) {
348 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
349 dev->name, result);
350 goto fail_fe_hw;
351 }
352
353 dvb->fe_mem.source = DMX_MEMORY_FE;
354 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
355 if (result < 0) {
356 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
357 dev->name, result);
358 goto fail_fe_mem;
359 }
360
361 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
362 if (result < 0) {
363 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
364 dev->name, result);
365 goto fail_fe_conn;
366 }
367
368 /* register network adapter */
369 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
370 return 0;
371
372fail_fe_conn:
373 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
374fail_fe_mem:
375 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
376fail_fe_hw:
377 dvb_dmxdev_release(&dvb->dmxdev);
378fail_dmxdev:
379 dvb_dmx_release(&dvb->demux);
380fail_dmx:
381 dvb_unregister_frontend(dvb->frontend);
382fail_frontend:
383 dvb_frontend_detach(dvb->frontend);
384 dvb_unregister_adapter(&dvb->adapter);
385fail_adapter:
386 return result;
387}
388
389static void unregister_dvb(struct em28xx_dvb *dvb)
390{
391 dvb_net_release(&dvb->net);
392 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
393 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
394 dvb_dmxdev_release(&dvb->dmxdev);
395 dvb_dmx_release(&dvb->demux);
396 dvb_unregister_frontend(dvb->frontend);
397 dvb_frontend_detach(dvb->frontend);
398 dvb_unregister_adapter(&dvb->adapter);
399}
400
401
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300402static int dvb_init(struct em28xx *dev)
403{
Aidan Thornton3421b7782008-04-17 21:40:36 -0300404 int result = 0;
405 struct em28xx_dvb *dvb;
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300406
Mauro Carvalho Chehab505b6d02008-11-25 09:39:50 -0300407 if (!dev->board.has_dvb) {
Devin Heitmuellerdf619182008-06-10 12:34:35 -0300408 /* This device does not support the extension */
409 return 0;
410 }
411
Aidan Thornton3421b7782008-04-17 21:40:36 -0300412 dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
Douglas Schilling Landgraf6ea54d92008-04-17 21:41:10 -0300413
414 if (dvb == NULL) {
415 printk(KERN_INFO "em28xx_dvb: memory allocation failed\n");
Aidan Thornton3421b7782008-04-17 21:40:36 -0300416 return -ENOMEM;
417 }
418 dev->dvb = dvb;
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300419
Mauro Carvalho Chehabc67ec532008-04-17 21:48:00 -0300420 em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300421 /* init frontend */
422 switch (dev->model) {
Douglas Schilling Landgraff89bc322008-12-01 21:01:04 -0300423 case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
Mauro Carvalho Chehab10ac6602008-07-27 14:58:58 -0300424 case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
Devin Heitmueller4fd305b2008-06-04 13:43:46 -0300425 case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
Devin Heitmuellere14b3652008-07-26 11:04:33 -0300426 case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
Aidan Thornton3421b7782008-04-17 21:40:36 -0300427 dvb->frontend = dvb_attach(lgdt330x_attach,
428 &em2880_lgdt3303_dev,
429 &dev->i2c_adap);
430 if (attach_xc3028(0x61, dev) < 0) {
431 result = -EINVAL;
432 goto out_free;
433 }
Mauro Carvalho Chehab227ad4a2008-04-17 21:37:40 -0300434 break;
Aidan Thornton7e6388a2008-04-17 21:40:03 -0300435 case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
Thierry MERLE46510b52008-10-11 16:56:13 -0300436 case EM2880_BOARD_TERRATEC_HYBRID_XS:
437 case EM2880_BOARD_KWORLD_DVB_310U:
Douglas Schilling Landgrafe5db5d42009-04-09 18:24:34 -0300438 case EM2880_BOARD_EMPIRE_DUAL_TV:
Aidan Thornton3421b7782008-04-17 21:40:36 -0300439 dvb->frontend = dvb_attach(zl10353_attach,
440 &em28xx_zl10353_with_xc3028,
441 &dev->i2c_adap);
442 if (attach_xc3028(0x61, dev) < 0) {
443 result = -EINVAL;
444 goto out_free;
445 }
Aidan Thornton7e6388a2008-04-17 21:40:03 -0300446 break;
Robert Krakora6e7b9ea2009-01-18 21:59:34 -0300447 case EM2883_BOARD_KWORLD_HYBRID_330U:
448 dvb->frontend = dvb_attach(s5h1409_attach,
449 &em28xx_s5h1409_with_xc3028,
450 &dev->i2c_adap);
451 if (attach_xc3028(0x61, dev) < 0) {
452 result = -EINVAL;
453 goto out_free;
454 }
455 break;
Franklin Mengd7de5d8f2009-06-06 17:05:02 -0300456 case EM2882_BOARD_KWORLD_ATSC_315U:
457 dvb->frontend = dvb_attach(lgdt330x_attach,
458 &em2880_lgdt3303_dev,
459 &dev->i2c_adap);
460 if (dvb->frontend != NULL) {
461 if (!dvb_attach(simple_tuner_attach, dvb->frontend,
462 &dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
463 result = -EINVAL;
464 goto out_free;
465 }
466 }
467 break;
Devin Heitmueller17d9d552008-06-08 10:22:03 -0300468 case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
469#ifdef EM28XX_DRX397XD_SUPPORT
470 /* We don't have the config structure properly populated, so
471 this is commented out for now */
472 dvb->frontend = dvb_attach(drx397xD_attach,
473 &em28xx_drx397xD_with_xc3028,
474 &dev->i2c_adap);
475 if (attach_xc3028(0x61, dev) < 0) {
476 result = -EINVAL;
477 goto out_free;
478 }
479 break;
480#endif
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300481 default:
482 printk(KERN_ERR "%s/2: The frontend of your DVB/ATSC card"
483 " isn't supported yet\n",
484 dev->name);
485 break;
486 }
Aidan Thornton3421b7782008-04-17 21:40:36 -0300487 if (NULL == dvb->frontend) {
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300488 printk(KERN_ERR
489 "%s/2: frontend initialization failed\n",
490 dev->name);
Aidan Thornton3421b7782008-04-17 21:40:36 -0300491 result = -EINVAL;
492 goto out_free;
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300493 }
Michael Krufkyd7cba042008-09-12 13:31:45 -0300494 /* define general-purpose callback pointer */
495 dvb->frontend->callback = em28xx_tuner_callback;
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300496
497 /* register everything */
Aidan Thornton3421b7782008-04-17 21:40:36 -0300498 result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
499
Douglas Schilling Landgraf6ea54d92008-04-17 21:41:10 -0300500 if (result < 0)
Aidan Thornton3421b7782008-04-17 21:40:36 -0300501 goto out_free;
Aidan Thornton3421b7782008-04-17 21:40:36 -0300502
Mauro Carvalho Chehab2fe3e2e2008-11-27 09:10:40 -0300503 em28xx_set_mode(dev, EM28XX_SUSPEND);
Mauro Carvalho Chehab102a0b02008-04-17 21:40:45 -0300504 printk(KERN_INFO "Successfully loaded em28xx-dvb\n");
Aidan Thornton3421b7782008-04-17 21:40:36 -0300505 return 0;
506
507out_free:
Mauro Carvalho Chehab2fe3e2e2008-11-27 09:10:40 -0300508 em28xx_set_mode(dev, EM28XX_SUSPEND);
Aidan Thornton3421b7782008-04-17 21:40:36 -0300509 kfree(dvb);
510 dev->dvb = NULL;
511 return result;
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300512}
513
514static int dvb_fini(struct em28xx *dev)
515{
Mauro Carvalho Chehab505b6d02008-11-25 09:39:50 -0300516 if (!dev->board.has_dvb) {
Devin Heitmuellerdf619182008-06-10 12:34:35 -0300517 /* This device does not support the extension */
518 return 0;
519 }
520
Aidan Thornton3421b7782008-04-17 21:40:36 -0300521 if (dev->dvb) {
522 unregister_dvb(dev->dvb);
523 dev->dvb = NULL;
524 }
Mauro Carvalho Chehab3aefb792008-04-17 21:36:41 -0300525
526 return 0;
527}
528
529static struct em28xx_ops dvb_ops = {
530 .id = EM28XX_DVB,
531 .name = "Em28xx dvb Extension",
532 .init = dvb_init,
533 .fini = dvb_fini,
534};
535
536static int __init em28xx_dvb_register(void)
537{
538 return em28xx_register_extension(&dvb_ops);
539}
540
541static void __exit em28xx_dvb_unregister(void)
542{
543 em28xx_unregister_extension(&dvb_ops);
544}
545
546module_init(em28xx_dvb_register);
547module_exit(em28xx_dvb_unregister);