treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
[sfrench/cifs-2.6.git] / drivers / media / pci / saa7164 / saa7164-dvb.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  Driver for the NXP SAA7164 PCIe bridge
4  *
5  *  Copyright (c) 2010-2015 Steven Toth <stoth@kernellabs.com>
6  */
7
8 #include "saa7164.h"
9
10 #include "tda10048.h"
11 #include "tda18271.h"
12 #include "s5h1411.h"
13 #include "si2157.h"
14 #include "si2168.h"
15 #include "lgdt3306a.h"
16
17 #define DRIVER_NAME "saa7164"
18
19 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
20
21 /* addr is in the card struct, get it from there */
22 static struct tda10048_config hauppauge_hvr2200_1_config = {
23         .demod_address    = 0x10 >> 1,
24         .output_mode      = TDA10048_SERIAL_OUTPUT,
25         .fwbulkwritelen   = TDA10048_BULKWRITE_200,
26         .inversion        = TDA10048_INVERSION_ON,
27         .dtv6_if_freq_khz = TDA10048_IF_3300,
28         .dtv7_if_freq_khz = TDA10048_IF_3500,
29         .dtv8_if_freq_khz = TDA10048_IF_4000,
30         .clk_freq_khz     = TDA10048_CLK_16000,
31 };
32 static struct tda10048_config hauppauge_hvr2200_2_config = {
33         .demod_address    = 0x12 >> 1,
34         .output_mode      = TDA10048_SERIAL_OUTPUT,
35         .fwbulkwritelen   = TDA10048_BULKWRITE_200,
36         .inversion        = TDA10048_INVERSION_ON,
37         .dtv6_if_freq_khz = TDA10048_IF_3300,
38         .dtv7_if_freq_khz = TDA10048_IF_3500,
39         .dtv8_if_freq_khz = TDA10048_IF_4000,
40         .clk_freq_khz     = TDA10048_CLK_16000,
41 };
42
43 static struct tda18271_std_map hauppauge_tda18271_std_map = {
44         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 3,
45                       .if_lvl = 6, .rfagc_top = 0x37 },
46         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 0,
47                       .if_lvl = 6, .rfagc_top = 0x37 },
48 };
49
50 static struct tda18271_config hauppauge_hvr22x0_tuner_config = {
51         .std_map        = &hauppauge_tda18271_std_map,
52         .gate           = TDA18271_GATE_ANALOG,
53         .role           = TDA18271_MASTER,
54 };
55
56 static struct tda18271_config hauppauge_hvr22x0s_tuner_config = {
57         .std_map        = &hauppauge_tda18271_std_map,
58         .gate           = TDA18271_GATE_ANALOG,
59         .role           = TDA18271_SLAVE,
60         .output_opt     = TDA18271_OUTPUT_LT_OFF,
61         .rf_cal_on_startup = 1
62 };
63
64 static struct s5h1411_config hauppauge_s5h1411_config = {
65         .output_mode   = S5H1411_SERIAL_OUTPUT,
66         .gpio          = S5H1411_GPIO_ON,
67         .qam_if        = S5H1411_IF_4000,
68         .vsb_if        = S5H1411_IF_3250,
69         .inversion     = S5H1411_INVERSION_ON,
70         .status_mode   = S5H1411_DEMODLOCKING,
71         .mpeg_timing   = S5H1411_MPEGTIMING_CONTINUOUS_NONINVERTING_CLOCK,
72 };
73
74 static struct lgdt3306a_config hauppauge_hvr2255a_config = {
75         .i2c_addr               = 0xb2 >> 1,
76         .qam_if_khz             = 4000,
77         .vsb_if_khz             = 3250,
78         .deny_i2c_rptr          = 1, /* Disabled */
79         .spectral_inversion     = 0, /* Disabled */
80         .mpeg_mode              = LGDT3306A_MPEG_SERIAL,
81         .tpclk_edge             = LGDT3306A_TPCLK_RISING_EDGE,
82         .tpvalid_polarity       = LGDT3306A_TP_VALID_HIGH,
83         .xtalMHz                = 25, /* 24 or 25 */
84 };
85
86 static struct lgdt3306a_config hauppauge_hvr2255b_config = {
87         .i2c_addr               = 0x1c >> 1,
88         .qam_if_khz             = 4000,
89         .vsb_if_khz             = 3250,
90         .deny_i2c_rptr          = 1, /* Disabled */
91         .spectral_inversion     = 0, /* Disabled */
92         .mpeg_mode              = LGDT3306A_MPEG_SERIAL,
93         .tpclk_edge             = LGDT3306A_TPCLK_RISING_EDGE,
94         .tpvalid_polarity       = LGDT3306A_TP_VALID_HIGH,
95         .xtalMHz                = 25, /* 24 or 25 */
96 };
97
98 static struct si2157_config hauppauge_hvr2255_tuner_config = {
99         .inversion = 1,
100         .if_port = 1,
101 };
102
103 static int si2157_attach(struct saa7164_port *port, struct i2c_adapter *adapter,
104         struct dvb_frontend *fe, u8 addr8bit, struct si2157_config *cfg)
105 {
106         struct i2c_board_info bi;
107         struct i2c_client *tuner;
108
109         cfg->fe = fe;
110
111         memset(&bi, 0, sizeof(bi));
112
113         strscpy(bi.type, "si2157", I2C_NAME_SIZE);
114         bi.platform_data = cfg;
115         bi.addr = addr8bit >> 1;
116
117         request_module(bi.type);
118
119         tuner = i2c_new_device(adapter, &bi);
120         if (tuner == NULL || tuner->dev.driver == NULL)
121                 return -ENODEV;
122
123         if (!try_module_get(tuner->dev.driver->owner)) {
124                 i2c_unregister_device(tuner);
125                 return -ENODEV;
126         }
127
128         port->i2c_client_tuner = tuner;
129
130         return 0;
131 }
132
133 static int saa7164_dvb_stop_port(struct saa7164_port *port)
134 {
135         struct saa7164_dev *dev = port->dev;
136         int ret;
137
138         ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
139         if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
140                 printk(KERN_ERR "%s() stop transition failed, ret = 0x%x\n",
141                         __func__, ret);
142                 ret = -EIO;
143         } else {
144                 dprintk(DBGLVL_DVB, "%s()    Stopped\n", __func__);
145                 ret = 0;
146         }
147
148         return ret;
149 }
150
151 static int saa7164_dvb_acquire_port(struct saa7164_port *port)
152 {
153         struct saa7164_dev *dev = port->dev;
154         int ret;
155
156         ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
157         if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
158                 printk(KERN_ERR "%s() acquire transition failed, ret = 0x%x\n",
159                         __func__, ret);
160                 ret = -EIO;
161         } else {
162                 dprintk(DBGLVL_DVB, "%s() Acquired\n", __func__);
163                 ret = 0;
164         }
165
166         return ret;
167 }
168
169 static int saa7164_dvb_pause_port(struct saa7164_port *port)
170 {
171         struct saa7164_dev *dev = port->dev;
172         int ret;
173
174         ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
175         if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
176                 printk(KERN_ERR "%s() pause transition failed, ret = 0x%x\n",
177                         __func__, ret);
178                 ret = -EIO;
179         } else {
180                 dprintk(DBGLVL_DVB, "%s()   Paused\n", __func__);
181                 ret = 0;
182         }
183
184         return ret;
185 }
186
187 /* Firmware is very windows centric, meaning you have to transition
188  * the part through AVStream / KS Windows stages, forwards or backwards.
189  * States are: stopped, acquired (h/w), paused, started.
190  */
191 static int saa7164_dvb_stop_streaming(struct saa7164_port *port)
192 {
193         struct saa7164_dev *dev = port->dev;
194         struct saa7164_buffer *buf;
195         struct list_head *p, *q;
196         int ret;
197
198         dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
199
200         ret = saa7164_dvb_pause_port(port);
201         ret = saa7164_dvb_acquire_port(port);
202         ret = saa7164_dvb_stop_port(port);
203
204         /* Mark the hardware buffers as free */
205         mutex_lock(&port->dmaqueue_lock);
206         list_for_each_safe(p, q, &port->dmaqueue.list) {
207                 buf = list_entry(p, struct saa7164_buffer, list);
208                 buf->flags = SAA7164_BUFFER_FREE;
209         }
210         mutex_unlock(&port->dmaqueue_lock);
211
212         return ret;
213 }
214
215 static int saa7164_dvb_start_port(struct saa7164_port *port)
216 {
217         struct saa7164_dev *dev = port->dev;
218         int ret = 0, result;
219
220         dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
221
222         saa7164_buffer_cfg_port(port);
223
224         /* Acquire the hardware */
225         result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
226         if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
227                 printk(KERN_ERR "%s() acquire transition failed, res = 0x%x\n",
228                         __func__, result);
229
230                 /* Stop the hardware, regardless */
231                 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
232                 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
233                         printk(KERN_ERR "%s() acquire/forced stop transition failed, res = 0x%x\n",
234                                __func__, result);
235                 }
236                 ret = -EIO;
237                 goto out;
238         } else
239                 dprintk(DBGLVL_DVB, "%s()   Acquired\n", __func__);
240
241         /* Pause the hardware */
242         result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
243         if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
244                 printk(KERN_ERR "%s() pause transition failed, res = 0x%x\n",
245                                 __func__, result);
246
247                 /* Stop the hardware, regardless */
248                 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
249                 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
250                         printk(KERN_ERR "%s() pause/forced stop transition failed, res = 0x%x\n",
251                                __func__, result);
252                 }
253
254                 ret = -EIO;
255                 goto out;
256         } else
257                 dprintk(DBGLVL_DVB, "%s()   Paused\n", __func__);
258
259         /* Start the hardware */
260         result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN);
261         if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
262                 printk(KERN_ERR "%s() run transition failed, result = 0x%x\n",
263                                 __func__, result);
264
265                 /* Stop the hardware, regardless */
266                 result = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
267                 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
268                         printk(KERN_ERR "%s() run/forced stop transition failed, res = 0x%x\n",
269                                __func__, result);
270                 }
271
272                 ret = -EIO;
273         } else
274                 dprintk(DBGLVL_DVB, "%s()   Running\n", __func__);
275
276 out:
277         return ret;
278 }
279
280 static int saa7164_dvb_start_feed(struct dvb_demux_feed *feed)
281 {
282         struct dvb_demux *demux = feed->demux;
283         struct saa7164_port *port = (struct saa7164_port *) demux->priv;
284         struct saa7164_dvb *dvb = &port->dvb;
285         struct saa7164_dev *dev = port->dev;
286         int ret = 0;
287
288         dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
289
290         if (!demux->dmx.frontend)
291                 return -EINVAL;
292
293         if (dvb) {
294                 mutex_lock(&dvb->lock);
295                 if (dvb->feeding++ == 0) {
296                         /* Start transport */
297                         ret = saa7164_dvb_start_port(port);
298                 }
299                 mutex_unlock(&dvb->lock);
300                 dprintk(DBGLVL_DVB, "%s(port=%d) now feeding = %d\n",
301                         __func__, port->nr, dvb->feeding);
302         }
303
304         return ret;
305 }
306
307 static int saa7164_dvb_stop_feed(struct dvb_demux_feed *feed)
308 {
309         struct dvb_demux *demux = feed->demux;
310         struct saa7164_port *port = (struct saa7164_port *) demux->priv;
311         struct saa7164_dvb *dvb = &port->dvb;
312         struct saa7164_dev *dev = port->dev;
313         int ret = 0;
314
315         dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
316
317         if (dvb) {
318                 mutex_lock(&dvb->lock);
319                 if (--dvb->feeding == 0) {
320                         /* Stop transport */
321                         ret = saa7164_dvb_stop_streaming(port);
322                 }
323                 mutex_unlock(&dvb->lock);
324                 dprintk(DBGLVL_DVB, "%s(port=%d) now feeding = %d\n",
325                         __func__, port->nr, dvb->feeding);
326         }
327
328         return ret;
329 }
330
331 static int dvb_register(struct saa7164_port *port)
332 {
333         struct saa7164_dvb *dvb = &port->dvb;
334         struct saa7164_dev *dev = port->dev;
335         struct saa7164_buffer *buf;
336         int result, i;
337
338         dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
339
340         if (port->type != SAA7164_MPEG_DVB)
341                 BUG();
342
343         /* Sanity check that the PCI configuration space is active */
344         if (port->hwcfg.BARLocation == 0) {
345                 result = -ENOMEM;
346                 printk(KERN_ERR "%s: dvb_register_adapter failed (errno = %d), NO PCI configuration\n",
347                         DRIVER_NAME, result);
348                 goto fail_adapter;
349         }
350
351         /* Init and establish defaults */
352         port->hw_streamingparams.bitspersample = 8;
353         port->hw_streamingparams.samplesperline = 188;
354         port->hw_streamingparams.numberoflines =
355                 (SAA7164_TS_NUMBER_OF_LINES * 188) / 188;
356
357         port->hw_streamingparams.pitch = 188;
358         port->hw_streamingparams.linethreshold = 0;
359         port->hw_streamingparams.pagetablelistvirt = NULL;
360         port->hw_streamingparams.pagetablelistphys = NULL;
361         port->hw_streamingparams.numpagetables = 2 +
362                 ((SAA7164_TS_NUMBER_OF_LINES * 188) / PAGE_SIZE);
363
364         port->hw_streamingparams.numpagetableentries = port->hwcfg.buffercount;
365
366         /* Allocate the PCI resources */
367         for (i = 0; i < port->hwcfg.buffercount; i++) {
368                 buf = saa7164_buffer_alloc(port,
369                         port->hw_streamingparams.numberoflines *
370                         port->hw_streamingparams.pitch);
371
372                 if (!buf) {
373                         result = -ENOMEM;
374                         printk(KERN_ERR "%s: dvb_register_adapter failed (errno = %d), unable to allocate buffers\n",
375                                 DRIVER_NAME, result);
376                         goto fail_adapter;
377                 }
378
379                 mutex_lock(&port->dmaqueue_lock);
380                 list_add_tail(&buf->list, &port->dmaqueue.list);
381                 mutex_unlock(&port->dmaqueue_lock);
382         }
383
384         /* register adapter */
385         result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
386                         &dev->pci->dev, adapter_nr);
387         if (result < 0) {
388                 printk(KERN_ERR "%s: dvb_register_adapter failed (errno = %d)\n",
389                        DRIVER_NAME, result);
390                 goto fail_adapter;
391         }
392         dvb->adapter.priv = port;
393
394         /* register frontend */
395         result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
396         if (result < 0) {
397                 printk(KERN_ERR "%s: dvb_register_frontend failed (errno = %d)\n",
398                        DRIVER_NAME, result);
399                 goto fail_frontend;
400         }
401
402         /* register demux stuff */
403         dvb->demux.dmx.capabilities =
404                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
405                 DMX_MEMORY_BASED_FILTERING;
406         dvb->demux.priv       = port;
407         dvb->demux.filternum  = 256;
408         dvb->demux.feednum    = 256;
409         dvb->demux.start_feed = saa7164_dvb_start_feed;
410         dvb->demux.stop_feed  = saa7164_dvb_stop_feed;
411         result = dvb_dmx_init(&dvb->demux);
412         if (result < 0) {
413                 printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n",
414                        DRIVER_NAME, result);
415                 goto fail_dmx;
416         }
417
418         dvb->dmxdev.filternum    = 256;
419         dvb->dmxdev.demux        = &dvb->demux.dmx;
420         dvb->dmxdev.capabilities = 0;
421         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
422         if (result < 0) {
423                 printk(KERN_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n",
424                        DRIVER_NAME, result);
425                 goto fail_dmxdev;
426         }
427
428         dvb->fe_hw.source = DMX_FRONTEND_0;
429         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
430         if (result < 0) {
431                 printk(KERN_ERR "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
432                        DRIVER_NAME, result);
433                 goto fail_fe_hw;
434         }
435
436         dvb->fe_mem.source = DMX_MEMORY_FE;
437         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
438         if (result < 0) {
439                 printk(KERN_ERR "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
440                        DRIVER_NAME, result);
441                 goto fail_fe_mem;
442         }
443
444         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
445         if (result < 0) {
446                 printk(KERN_ERR "%s: connect_frontend failed (errno = %d)\n",
447                        DRIVER_NAME, result);
448                 goto fail_fe_conn;
449         }
450
451         /* register network adapter */
452         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
453         return 0;
454
455 fail_fe_conn:
456         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
457 fail_fe_mem:
458         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
459 fail_fe_hw:
460         dvb_dmxdev_release(&dvb->dmxdev);
461 fail_dmxdev:
462         dvb_dmx_release(&dvb->demux);
463 fail_dmx:
464         dvb_unregister_frontend(dvb->frontend);
465 fail_frontend:
466         dvb_frontend_detach(dvb->frontend);
467         dvb_unregister_adapter(&dvb->adapter);
468 fail_adapter:
469         return result;
470 }
471
472 int saa7164_dvb_unregister(struct saa7164_port *port)
473 {
474         struct saa7164_dvb *dvb = &port->dvb;
475         struct saa7164_dev *dev = port->dev;
476         struct saa7164_buffer *b;
477         struct list_head *c, *n;
478         struct i2c_client *client;
479
480         dprintk(DBGLVL_DVB, "%s()\n", __func__);
481
482         if (port->type != SAA7164_MPEG_DVB)
483                 BUG();
484
485         /* Remove any allocated buffers */
486         mutex_lock(&port->dmaqueue_lock);
487         list_for_each_safe(c, n, &port->dmaqueue.list) {
488                 b = list_entry(c, struct saa7164_buffer, list);
489                 list_del(c);
490                 saa7164_buffer_dealloc(b);
491         }
492         mutex_unlock(&port->dmaqueue_lock);
493
494         if (dvb->frontend == NULL)
495                 return 0;
496
497         /* remove I2C client for tuner */
498         client = port->i2c_client_tuner;
499         if (client) {
500                 module_put(client->dev.driver->owner);
501                 i2c_unregister_device(client);
502         }
503
504         /* remove I2C client for demodulator */
505         client = port->i2c_client_demod;
506         if (client) {
507                 module_put(client->dev.driver->owner);
508                 i2c_unregister_device(client);
509         }
510
511         dvb_net_release(&dvb->net);
512         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
513         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
514         dvb_dmxdev_release(&dvb->dmxdev);
515         dvb_dmx_release(&dvb->demux);
516         dvb_unregister_frontend(dvb->frontend);
517         dvb_frontend_detach(dvb->frontend);
518         dvb_unregister_adapter(&dvb->adapter);
519         return 0;
520 }
521
522 /* All the DVB attach calls go here, this function gets modified
523  * for each new card.
524  */
525 int saa7164_dvb_register(struct saa7164_port *port)
526 {
527         struct saa7164_dev *dev = port->dev;
528         struct saa7164_dvb *dvb = &port->dvb;
529         struct saa7164_i2c *i2c_bus = NULL;
530         struct si2168_config si2168_config;
531         struct si2157_config si2157_config;
532         struct i2c_adapter *adapter;
533         struct i2c_board_info info;
534         struct i2c_client *client_demod;
535         struct i2c_client *client_tuner;
536         int ret;
537
538         dprintk(DBGLVL_DVB, "%s()\n", __func__);
539
540         /* init frontend */
541         switch (dev->board) {
542         case SAA7164_BOARD_HAUPPAUGE_HVR2200:
543         case SAA7164_BOARD_HAUPPAUGE_HVR2200_2:
544         case SAA7164_BOARD_HAUPPAUGE_HVR2200_3:
545         case SAA7164_BOARD_HAUPPAUGE_HVR2200_4:
546         case SAA7164_BOARD_HAUPPAUGE_HVR2200_5:
547                 i2c_bus = &dev->i2c_bus[port->nr + 1];
548                 switch (port->nr) {
549                 case 0:
550                         port->dvb.frontend = dvb_attach(tda10048_attach,
551                                 &hauppauge_hvr2200_1_config,
552                                 &i2c_bus->i2c_adap);
553
554                         if (port->dvb.frontend != NULL) {
555                                 /* TODO: addr is in the card struct */
556                                 dvb_attach(tda18271_attach, port->dvb.frontend,
557                                         0xc0 >> 1, &i2c_bus->i2c_adap,
558                                         &hauppauge_hvr22x0_tuner_config);
559                         }
560
561                         break;
562                 case 1:
563                         port->dvb.frontend = dvb_attach(tda10048_attach,
564                                 &hauppauge_hvr2200_2_config,
565                                 &i2c_bus->i2c_adap);
566
567                         if (port->dvb.frontend != NULL) {
568                                 /* TODO: addr is in the card struct */
569                                 dvb_attach(tda18271_attach, port->dvb.frontend,
570                                         0xc0 >> 1, &i2c_bus->i2c_adap,
571                                         &hauppauge_hvr22x0s_tuner_config);
572                         }
573
574                         break;
575                 }
576                 break;
577         case SAA7164_BOARD_HAUPPAUGE_HVR2250:
578         case SAA7164_BOARD_HAUPPAUGE_HVR2250_2:
579         case SAA7164_BOARD_HAUPPAUGE_HVR2250_3:
580                 i2c_bus = &dev->i2c_bus[port->nr + 1];
581
582                 port->dvb.frontend = dvb_attach(s5h1411_attach,
583                         &hauppauge_s5h1411_config,
584                         &i2c_bus->i2c_adap);
585
586                 if (port->dvb.frontend != NULL) {
587                         if (port->nr == 0) {
588                                 /* Master TDA18271 */
589                                 /* TODO: addr is in the card struct */
590                                 dvb_attach(tda18271_attach, port->dvb.frontend,
591                                         0xc0 >> 1, &i2c_bus->i2c_adap,
592                                         &hauppauge_hvr22x0_tuner_config);
593                         } else {
594                                 /* Slave TDA18271 */
595                                 dvb_attach(tda18271_attach, port->dvb.frontend,
596                                         0xc0 >> 1, &i2c_bus->i2c_adap,
597                                         &hauppauge_hvr22x0s_tuner_config);
598                         }
599                 }
600
601                 break;
602         case SAA7164_BOARD_HAUPPAUGE_HVR2255proto:
603         case SAA7164_BOARD_HAUPPAUGE_HVR2255:
604                 i2c_bus = &dev->i2c_bus[2];
605
606                 if (port->nr == 0) {
607                         port->dvb.frontend = dvb_attach(lgdt3306a_attach,
608                                 &hauppauge_hvr2255a_config, &i2c_bus->i2c_adap);
609                 } else {
610                         port->dvb.frontend = dvb_attach(lgdt3306a_attach,
611                                 &hauppauge_hvr2255b_config, &i2c_bus->i2c_adap);
612                 }
613
614                 if (port->dvb.frontend != NULL) {
615
616                         if (port->nr == 0) {
617                                 si2157_attach(port, &dev->i2c_bus[0].i2c_adap,
618                                               port->dvb.frontend, 0xc0,
619                                               &hauppauge_hvr2255_tuner_config);
620                         } else {
621                                 si2157_attach(port, &dev->i2c_bus[1].i2c_adap,
622                                               port->dvb.frontend, 0xc0,
623                                               &hauppauge_hvr2255_tuner_config);
624                         }
625                 }
626                 break;
627         case SAA7164_BOARD_HAUPPAUGE_HVR2205:
628
629                 if (port->nr == 0) {
630                         /* attach frontend */
631                         memset(&si2168_config, 0, sizeof(si2168_config));
632                         si2168_config.i2c_adapter = &adapter;
633                         si2168_config.fe = &port->dvb.frontend;
634                         si2168_config.ts_mode = SI2168_TS_SERIAL;
635                         memset(&info, 0, sizeof(struct i2c_board_info));
636                         strscpy(info.type, "si2168", I2C_NAME_SIZE);
637                         info.addr = 0xc8 >> 1;
638                         info.platform_data = &si2168_config;
639                         request_module(info.type);
640                         client_demod = i2c_new_device(&dev->i2c_bus[2].i2c_adap,
641                                                       &info);
642                         if (!client_demod || !client_demod->dev.driver)
643                                 goto frontend_detach;
644
645                         if (!try_module_get(client_demod->dev.driver->owner)) {
646                                 i2c_unregister_device(client_demod);
647                                 goto frontend_detach;
648                         }
649                         port->i2c_client_demod = client_demod;
650
651                         /* attach tuner */
652                         memset(&si2157_config, 0, sizeof(si2157_config));
653                         si2157_config.if_port = 1;
654                         si2157_config.fe = port->dvb.frontend;
655                         memset(&info, 0, sizeof(struct i2c_board_info));
656                         strscpy(info.type, "si2157", I2C_NAME_SIZE);
657                         info.addr = 0xc0 >> 1;
658                         info.platform_data = &si2157_config;
659                         request_module(info.type);
660                         client_tuner = i2c_new_device(&dev->i2c_bus[0].i2c_adap,
661                                                       &info);
662                         if (!client_tuner || !client_tuner->dev.driver) {
663                                 module_put(client_demod->dev.driver->owner);
664                                 i2c_unregister_device(client_demod);
665                                 goto frontend_detach;
666                         }
667                         if (!try_module_get(client_tuner->dev.driver->owner)) {
668                                 i2c_unregister_device(client_tuner);
669                                 module_put(client_demod->dev.driver->owner);
670                                 i2c_unregister_device(client_demod);
671                                 goto frontend_detach;
672                         }
673                         port->i2c_client_tuner = client_tuner;
674                 } else {
675                         /* attach frontend */
676                         memset(&si2168_config, 0, sizeof(si2168_config));
677                         si2168_config.i2c_adapter = &adapter;
678                         si2168_config.fe = &port->dvb.frontend;
679                         si2168_config.ts_mode = SI2168_TS_SERIAL;
680                         memset(&info, 0, sizeof(struct i2c_board_info));
681                         strscpy(info.type, "si2168", I2C_NAME_SIZE);
682                         info.addr = 0xcc >> 1;
683                         info.platform_data = &si2168_config;
684                         request_module(info.type);
685                         client_demod = i2c_new_device(&dev->i2c_bus[2].i2c_adap,
686                                                       &info);
687                         if (!client_demod || !client_demod->dev.driver)
688                                 goto frontend_detach;
689
690                         if (!try_module_get(client_demod->dev.driver->owner)) {
691                                 i2c_unregister_device(client_demod);
692                                 goto frontend_detach;
693                         }
694                         port->i2c_client_demod = client_demod;
695
696                         /* attach tuner */
697                         memset(&si2157_config, 0, sizeof(si2157_config));
698                         si2157_config.fe = port->dvb.frontend;
699                         si2157_config.if_port = 1;
700                         memset(&info, 0, sizeof(struct i2c_board_info));
701                         strscpy(info.type, "si2157", I2C_NAME_SIZE);
702                         info.addr = 0xc0 >> 1;
703                         info.platform_data = &si2157_config;
704                         request_module(info.type);
705                         client_tuner = i2c_new_device(&dev->i2c_bus[1].i2c_adap,
706                                                       &info);
707                         if (!client_tuner || !client_tuner->dev.driver) {
708                                 module_put(client_demod->dev.driver->owner);
709                                 i2c_unregister_device(client_demod);
710                                 goto frontend_detach;
711                         }
712                         if (!try_module_get(client_tuner->dev.driver->owner)) {
713                                 i2c_unregister_device(client_tuner);
714                                 module_put(client_demod->dev.driver->owner);
715                                 i2c_unregister_device(client_demod);
716                                 goto frontend_detach;
717                         }
718                         port->i2c_client_tuner = client_tuner;
719                 }
720
721                 break;
722         default:
723                 printk(KERN_ERR "%s: The frontend isn't supported\n",
724                        dev->name);
725                 break;
726         }
727         if (NULL == dvb->frontend) {
728                 printk(KERN_ERR "%s() Frontend initialization failed\n",
729                        __func__);
730                 return -1;
731         }
732
733         /* register everything */
734         ret = dvb_register(port);
735         if (ret < 0) {
736                 if (dvb->frontend->ops.release)
737                         dvb->frontend->ops.release(dvb->frontend);
738                 return ret;
739         }
740
741         return 0;
742
743 frontend_detach:
744         printk(KERN_ERR "%s() Frontend/I2C initialization failed\n", __func__);
745         return -1;
746 }
747