1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Driver for the NXP SAA7164 PCIe bridge
5 * Copyright (c) 2010-2015 Steven Toth <stoth@kernellabs.com>
15 #include "lgdt3306a.h"
17 #define DRIVER_NAME "saa7164"
19 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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,
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,
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 },
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,
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
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,
74 static struct lgdt3306a_config hauppauge_hvr2255a_config = {
75 .i2c_addr = 0xb2 >> 1,
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 */
86 static struct lgdt3306a_config hauppauge_hvr2255b_config = {
87 .i2c_addr = 0x1c >> 1,
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 */
98 static struct si2157_config hauppauge_hvr2255_tuner_config = {
103 static int si2157_attach(struct saa7164_port *port, struct i2c_adapter *adapter,
104 struct dvb_frontend *fe, u8 addr8bit, struct si2157_config *cfg)
106 struct i2c_board_info bi;
107 struct i2c_client *tuner;
111 memset(&bi, 0, sizeof(bi));
113 strscpy(bi.type, "si2157", I2C_NAME_SIZE);
114 bi.platform_data = cfg;
115 bi.addr = addr8bit >> 1;
117 request_module(bi.type);
119 tuner = i2c_new_client_device(adapter, &bi);
120 if (!i2c_client_has_driver(tuner))
123 if (!try_module_get(tuner->dev.driver->owner)) {
124 i2c_unregister_device(tuner);
128 port->i2c_client_tuner = tuner;
133 static int saa7164_dvb_stop_port(struct saa7164_port *port)
135 struct saa7164_dev *dev = port->dev;
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",
144 dprintk(DBGLVL_DVB, "%s() Stopped\n", __func__);
151 static int saa7164_dvb_acquire_port(struct saa7164_port *port)
153 struct saa7164_dev *dev = port->dev;
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",
162 dprintk(DBGLVL_DVB, "%s() Acquired\n", __func__);
169 static int saa7164_dvb_pause_port(struct saa7164_port *port)
171 struct saa7164_dev *dev = port->dev;
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",
180 dprintk(DBGLVL_DVB, "%s() Paused\n", __func__);
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.
191 static int saa7164_dvb_stop_streaming(struct saa7164_port *port)
193 struct saa7164_dev *dev = port->dev;
194 struct saa7164_buffer *buf;
195 struct list_head *p, *q;
198 dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
200 ret = saa7164_dvb_pause_port(port);
201 ret = saa7164_dvb_acquire_port(port);
202 ret = saa7164_dvb_stop_port(port);
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;
210 mutex_unlock(&port->dmaqueue_lock);
215 static int saa7164_dvb_start_port(struct saa7164_port *port)
217 struct saa7164_dev *dev = port->dev;
220 dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
222 saa7164_buffer_cfg_port(port);
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",
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",
239 dprintk(DBGLVL_DVB, "%s() Acquired\n", __func__);
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",
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",
257 dprintk(DBGLVL_DVB, "%s() Paused\n", __func__);
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",
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",
274 dprintk(DBGLVL_DVB, "%s() Running\n", __func__);
280 static int saa7164_dvb_start_feed(struct dvb_demux_feed *feed)
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;
288 dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
290 if (!demux->dmx.frontend)
294 mutex_lock(&dvb->lock);
295 if (dvb->feeding++ == 0) {
296 /* Start transport */
297 ret = saa7164_dvb_start_port(port);
299 mutex_unlock(&dvb->lock);
300 dprintk(DBGLVL_DVB, "%s(port=%d) now feeding = %d\n",
301 __func__, port->nr, dvb->feeding);
307 static int saa7164_dvb_stop_feed(struct dvb_demux_feed *feed)
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;
315 dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
318 mutex_lock(&dvb->lock);
319 if (--dvb->feeding == 0) {
321 ret = saa7164_dvb_stop_streaming(port);
323 mutex_unlock(&dvb->lock);
324 dprintk(DBGLVL_DVB, "%s(port=%d) now feeding = %d\n",
325 __func__, port->nr, dvb->feeding);
331 static int dvb_register(struct saa7164_port *port)
333 struct saa7164_dvb *dvb = &port->dvb;
334 struct saa7164_dev *dev = port->dev;
335 struct saa7164_buffer *buf;
338 dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
340 BUG_ON(port->type != SAA7164_MPEG_DVB);
342 /* Sanity check that the PCI configuration space is active */
343 if (port->hwcfg.BARLocation == 0) {
345 printk(KERN_ERR "%s: dvb_register_adapter failed (errno = %d), NO PCI configuration\n",
346 DRIVER_NAME, result);
350 /* Init and establish defaults */
351 port->hw_streamingparams.bitspersample = 8;
352 port->hw_streamingparams.samplesperline = 188;
353 port->hw_streamingparams.numberoflines =
354 (SAA7164_TS_NUMBER_OF_LINES * 188) / 188;
356 port->hw_streamingparams.pitch = 188;
357 port->hw_streamingparams.linethreshold = 0;
358 port->hw_streamingparams.pagetablelistvirt = NULL;
359 port->hw_streamingparams.pagetablelistphys = NULL;
360 port->hw_streamingparams.numpagetables = 2 +
361 ((SAA7164_TS_NUMBER_OF_LINES * 188) / PAGE_SIZE);
363 port->hw_streamingparams.numpagetableentries = port->hwcfg.buffercount;
365 /* Allocate the PCI resources */
366 for (i = 0; i < port->hwcfg.buffercount; i++) {
367 buf = saa7164_buffer_alloc(port,
368 port->hw_streamingparams.numberoflines *
369 port->hw_streamingparams.pitch);
373 printk(KERN_ERR "%s: dvb_register_adapter failed (errno = %d), unable to allocate buffers\n",
374 DRIVER_NAME, result);
378 mutex_lock(&port->dmaqueue_lock);
379 list_add_tail(&buf->list, &port->dmaqueue.list);
380 mutex_unlock(&port->dmaqueue_lock);
383 /* register adapter */
384 result = dvb_register_adapter(&dvb->adapter, DRIVER_NAME, THIS_MODULE,
385 &dev->pci->dev, adapter_nr);
387 printk(KERN_ERR "%s: dvb_register_adapter failed (errno = %d)\n",
388 DRIVER_NAME, result);
391 dvb->adapter.priv = port;
393 /* register frontend */
394 result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
396 printk(KERN_ERR "%s: dvb_register_frontend failed (errno = %d)\n",
397 DRIVER_NAME, result);
401 /* register demux stuff */
402 dvb->demux.dmx.capabilities =
403 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
404 DMX_MEMORY_BASED_FILTERING;
405 dvb->demux.priv = port;
406 dvb->demux.filternum = 256;
407 dvb->demux.feednum = 256;
408 dvb->demux.start_feed = saa7164_dvb_start_feed;
409 dvb->demux.stop_feed = saa7164_dvb_stop_feed;
410 result = dvb_dmx_init(&dvb->demux);
412 printk(KERN_ERR "%s: dvb_dmx_init failed (errno = %d)\n",
413 DRIVER_NAME, result);
417 dvb->dmxdev.filternum = 256;
418 dvb->dmxdev.demux = &dvb->demux.dmx;
419 dvb->dmxdev.capabilities = 0;
420 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
422 printk(KERN_ERR "%s: dvb_dmxdev_init failed (errno = %d)\n",
423 DRIVER_NAME, result);
427 dvb->fe_hw.source = DMX_FRONTEND_0;
428 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
430 printk(KERN_ERR "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
431 DRIVER_NAME, result);
435 dvb->fe_mem.source = DMX_MEMORY_FE;
436 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
438 printk(KERN_ERR "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
439 DRIVER_NAME, result);
443 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
445 printk(KERN_ERR "%s: connect_frontend failed (errno = %d)\n",
446 DRIVER_NAME, result);
450 /* register network adapter */
451 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
455 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
457 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
459 dvb_dmxdev_release(&dvb->dmxdev);
461 dvb_dmx_release(&dvb->demux);
463 dvb_unregister_frontend(dvb->frontend);
465 dvb_frontend_detach(dvb->frontend);
466 dvb_unregister_adapter(&dvb->adapter);
471 int saa7164_dvb_unregister(struct saa7164_port *port)
473 struct saa7164_dvb *dvb = &port->dvb;
474 struct saa7164_dev *dev = port->dev;
475 struct saa7164_buffer *b;
476 struct list_head *c, *n;
477 struct i2c_client *client;
479 dprintk(DBGLVL_DVB, "%s()\n", __func__);
481 BUG_ON(port->type != SAA7164_MPEG_DVB);
483 /* Remove any allocated buffers */
484 mutex_lock(&port->dmaqueue_lock);
485 list_for_each_safe(c, n, &port->dmaqueue.list) {
486 b = list_entry(c, struct saa7164_buffer, list);
488 saa7164_buffer_dealloc(b);
490 mutex_unlock(&port->dmaqueue_lock);
492 if (dvb->frontend == NULL)
495 /* remove I2C client for tuner */
496 client = port->i2c_client_tuner;
498 module_put(client->dev.driver->owner);
499 i2c_unregister_device(client);
502 /* remove I2C client for demodulator */
503 client = port->i2c_client_demod;
505 module_put(client->dev.driver->owner);
506 i2c_unregister_device(client);
509 dvb_net_release(&dvb->net);
510 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
511 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
512 dvb_dmxdev_release(&dvb->dmxdev);
513 dvb_dmx_release(&dvb->demux);
514 dvb_unregister_frontend(dvb->frontend);
515 dvb_frontend_detach(dvb->frontend);
516 dvb_unregister_adapter(&dvb->adapter);
520 /* All the DVB attach calls go here, this function gets modified
523 int saa7164_dvb_register(struct saa7164_port *port)
525 struct saa7164_dev *dev = port->dev;
526 struct saa7164_dvb *dvb = &port->dvb;
527 struct saa7164_i2c *i2c_bus = NULL;
528 struct si2168_config si2168_config;
529 struct si2157_config si2157_config;
530 struct i2c_adapter *adapter;
531 struct i2c_board_info info;
532 struct i2c_client *client_demod;
533 struct i2c_client *client_tuner;
536 dprintk(DBGLVL_DVB, "%s()\n", __func__);
539 switch (dev->board) {
540 case SAA7164_BOARD_HAUPPAUGE_HVR2200:
541 case SAA7164_BOARD_HAUPPAUGE_HVR2200_2:
542 case SAA7164_BOARD_HAUPPAUGE_HVR2200_3:
543 case SAA7164_BOARD_HAUPPAUGE_HVR2200_4:
544 case SAA7164_BOARD_HAUPPAUGE_HVR2200_5:
545 i2c_bus = &dev->i2c_bus[port->nr + 1];
548 port->dvb.frontend = dvb_attach(tda10048_attach,
549 &hauppauge_hvr2200_1_config,
552 if (port->dvb.frontend != NULL) {
553 /* TODO: addr is in the card struct */
554 dvb_attach(tda18271_attach, port->dvb.frontend,
555 0xc0 >> 1, &i2c_bus->i2c_adap,
556 &hauppauge_hvr22x0_tuner_config);
561 port->dvb.frontend = dvb_attach(tda10048_attach,
562 &hauppauge_hvr2200_2_config,
565 if (port->dvb.frontend != NULL) {
566 /* TODO: addr is in the card struct */
567 dvb_attach(tda18271_attach, port->dvb.frontend,
568 0xc0 >> 1, &i2c_bus->i2c_adap,
569 &hauppauge_hvr22x0s_tuner_config);
575 case SAA7164_BOARD_HAUPPAUGE_HVR2250:
576 case SAA7164_BOARD_HAUPPAUGE_HVR2250_2:
577 case SAA7164_BOARD_HAUPPAUGE_HVR2250_3:
578 i2c_bus = &dev->i2c_bus[port->nr + 1];
580 port->dvb.frontend = dvb_attach(s5h1411_attach,
581 &hauppauge_s5h1411_config,
584 if (port->dvb.frontend != NULL) {
586 /* Master TDA18271 */
587 /* TODO: addr is in the card struct */
588 dvb_attach(tda18271_attach, port->dvb.frontend,
589 0xc0 >> 1, &i2c_bus->i2c_adap,
590 &hauppauge_hvr22x0_tuner_config);
593 dvb_attach(tda18271_attach, port->dvb.frontend,
594 0xc0 >> 1, &i2c_bus->i2c_adap,
595 &hauppauge_hvr22x0s_tuner_config);
600 case SAA7164_BOARD_HAUPPAUGE_HVR2255proto:
601 case SAA7164_BOARD_HAUPPAUGE_HVR2255:
602 i2c_bus = &dev->i2c_bus[2];
605 port->dvb.frontend = dvb_attach(lgdt3306a_attach,
606 &hauppauge_hvr2255a_config, &i2c_bus->i2c_adap);
608 port->dvb.frontend = dvb_attach(lgdt3306a_attach,
609 &hauppauge_hvr2255b_config, &i2c_bus->i2c_adap);
612 if (port->dvb.frontend != NULL) {
615 si2157_attach(port, &dev->i2c_bus[0].i2c_adap,
616 port->dvb.frontend, 0xc0,
617 &hauppauge_hvr2255_tuner_config);
619 si2157_attach(port, &dev->i2c_bus[1].i2c_adap,
620 port->dvb.frontend, 0xc0,
621 &hauppauge_hvr2255_tuner_config);
625 case SAA7164_BOARD_HAUPPAUGE_HVR2205:
628 /* attach frontend */
629 memset(&si2168_config, 0, sizeof(si2168_config));
630 si2168_config.i2c_adapter = &adapter;
631 si2168_config.fe = &port->dvb.frontend;
632 si2168_config.ts_mode = SI2168_TS_SERIAL;
633 memset(&info, 0, sizeof(struct i2c_board_info));
634 strscpy(info.type, "si2168", I2C_NAME_SIZE);
635 info.addr = 0xc8 >> 1;
636 info.platform_data = &si2168_config;
637 request_module(info.type);
638 client_demod = i2c_new_client_device(&dev->i2c_bus[2].i2c_adap, &info);
639 if (!i2c_client_has_driver(client_demod))
640 goto frontend_detach;
642 if (!try_module_get(client_demod->dev.driver->owner)) {
643 i2c_unregister_device(client_demod);
644 goto frontend_detach;
646 port->i2c_client_demod = client_demod;
649 memset(&si2157_config, 0, sizeof(si2157_config));
650 si2157_config.if_port = 1;
651 si2157_config.fe = port->dvb.frontend;
652 memset(&info, 0, sizeof(struct i2c_board_info));
653 strscpy(info.type, "si2157", I2C_NAME_SIZE);
654 info.addr = 0xc0 >> 1;
655 info.platform_data = &si2157_config;
656 request_module(info.type);
657 client_tuner = i2c_new_client_device(&dev->i2c_bus[0].i2c_adap, &info);
658 if (!i2c_client_has_driver(client_tuner)) {
659 module_put(client_demod->dev.driver->owner);
660 i2c_unregister_device(client_demod);
661 goto frontend_detach;
663 if (!try_module_get(client_tuner->dev.driver->owner)) {
664 i2c_unregister_device(client_tuner);
665 module_put(client_demod->dev.driver->owner);
666 i2c_unregister_device(client_demod);
667 goto frontend_detach;
669 port->i2c_client_tuner = client_tuner;
671 /* attach frontend */
672 memset(&si2168_config, 0, sizeof(si2168_config));
673 si2168_config.i2c_adapter = &adapter;
674 si2168_config.fe = &port->dvb.frontend;
675 si2168_config.ts_mode = SI2168_TS_SERIAL;
676 memset(&info, 0, sizeof(struct i2c_board_info));
677 strscpy(info.type, "si2168", I2C_NAME_SIZE);
678 info.addr = 0xcc >> 1;
679 info.platform_data = &si2168_config;
680 request_module(info.type);
681 client_demod = i2c_new_client_device(&dev->i2c_bus[2].i2c_adap, &info);
682 if (!i2c_client_has_driver(client_demod))
683 goto frontend_detach;
685 if (!try_module_get(client_demod->dev.driver->owner)) {
686 i2c_unregister_device(client_demod);
687 goto frontend_detach;
689 port->i2c_client_demod = client_demod;
692 memset(&si2157_config, 0, sizeof(si2157_config));
693 si2157_config.fe = port->dvb.frontend;
694 si2157_config.if_port = 1;
695 memset(&info, 0, sizeof(struct i2c_board_info));
696 strscpy(info.type, "si2157", I2C_NAME_SIZE);
697 info.addr = 0xc0 >> 1;
698 info.platform_data = &si2157_config;
699 request_module(info.type);
700 client_tuner = i2c_new_client_device(&dev->i2c_bus[1].i2c_adap, &info);
701 if (!i2c_client_has_driver(client_tuner)) {
702 module_put(client_demod->dev.driver->owner);
703 i2c_unregister_device(client_demod);
704 goto frontend_detach;
706 if (!try_module_get(client_tuner->dev.driver->owner)) {
707 i2c_unregister_device(client_tuner);
708 module_put(client_demod->dev.driver->owner);
709 i2c_unregister_device(client_demod);
710 goto frontend_detach;
712 port->i2c_client_tuner = client_tuner;
717 printk(KERN_ERR "%s: The frontend isn't supported\n",
721 if (NULL == dvb->frontend) {
722 printk(KERN_ERR "%s() Frontend initialization failed\n",
727 /* register everything */
728 ret = dvb_register(port);
730 if (dvb->frontend->ops.release)
731 dvb->frontend->ops.release(dvb->frontend);
738 printk(KERN_ERR "%s() Frontend/I2C initialization failed\n", __func__);