2 * Driver for the NXP SAA7164 PCIe bridge
4 * Copyright (c) 2010 Steven Toth <stoth@kernellabs.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * 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/init.h>
23 #include <linux/module.h>
24 #include <linux/pci.h>
25 #include <linux/delay.h>
29 /* The Bridge API needs to understand register widths (in bytes) for the
30 * attached I2C devices, so we can simplify the virtual i2c mechansms
31 * and keep the -i2c.c implementation clean.
34 #define REGLEN_16bit 2
36 struct saa7164_board saa7164_boards
[] = {
37 [SAA7164_BOARD_UNKNOWN
] = {
38 /* Bridge will not load any firmware, without knowing
39 * the rev this would be fatal. */
42 [SAA7164_BOARD_UNKNOWN_REV2
] = {
43 /* Bridge will load the v2 f/w and dump descriptors */
44 /* Required during new board bringup */
45 .name
= "Generic Rev2",
46 .chiprev
= SAA7164_CHIP_REV2
,
48 [SAA7164_BOARD_UNKNOWN_REV3
] = {
49 /* Bridge will load the v2 f/w and dump descriptors */
50 /* Required during new board bringup */
51 .name
= "Generic Rev3",
52 .chiprev
= SAA7164_CHIP_REV3
,
54 [SAA7164_BOARD_HAUPPAUGE_HVR2200
] = {
55 .name
= "Hauppauge WinTV-HVR2200",
56 .porta
= SAA7164_MPEG_DVB
,
57 .portb
= SAA7164_MPEG_DVB
,
58 .portc
= SAA7164_MPEG_ENCODER
,
59 .portd
= SAA7164_MPEG_ENCODER
,
60 .porte
= SAA7164_MPEG_VBI
,
61 .portf
= SAA7164_MPEG_VBI
,
62 .chiprev
= SAA7164_CHIP_REV3
,
65 .type
= SAA7164_UNIT_EEPROM
,
67 .i2c_bus_nr
= SAA7164_I2C_BUS_0
,
68 .i2c_bus_addr
= 0xa0 >> 1,
69 .i2c_reg_len
= REGLEN_8bit
,
72 .type
= SAA7164_UNIT_TUNER
,
74 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
75 .i2c_bus_addr
= 0xc0 >> 1,
76 .i2c_reg_len
= REGLEN_8bit
,
79 .type
= SAA7164_UNIT_TUNER
,
81 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
82 .i2c_bus_addr
= 0xc0 >> 1,
83 .i2c_reg_len
= REGLEN_8bit
,
86 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
88 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
89 .i2c_bus_addr
= 0x10 >> 1,
90 .i2c_reg_len
= REGLEN_8bit
,
93 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
95 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
96 .i2c_bus_addr
= 0x12 >> 1,
97 .i2c_reg_len
= REGLEN_8bit
,
100 [SAA7164_BOARD_HAUPPAUGE_HVR2200_2
] = {
101 .name
= "Hauppauge WinTV-HVR2200",
102 .porta
= SAA7164_MPEG_DVB
,
103 .portb
= SAA7164_MPEG_DVB
,
104 .portc
= SAA7164_MPEG_ENCODER
,
105 .portd
= SAA7164_MPEG_ENCODER
,
106 .porte
= SAA7164_MPEG_VBI
,
107 .portf
= SAA7164_MPEG_VBI
,
108 .chiprev
= SAA7164_CHIP_REV2
,
111 .type
= SAA7164_UNIT_EEPROM
,
113 .i2c_bus_nr
= SAA7164_I2C_BUS_0
,
114 .i2c_bus_addr
= 0xa0 >> 1,
115 .i2c_reg_len
= REGLEN_8bit
,
118 .type
= SAA7164_UNIT_TUNER
,
119 .name
= "TDA18271-1",
120 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
121 .i2c_bus_addr
= 0xc0 >> 1,
122 .i2c_reg_len
= REGLEN_8bit
,
125 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
126 .name
= "TDA10048-1",
127 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
128 .i2c_bus_addr
= 0x10 >> 1,
129 .i2c_reg_len
= REGLEN_8bit
,
132 .type
= SAA7164_UNIT_TUNER
,
133 .name
= "TDA18271-2",
134 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
135 .i2c_bus_addr
= 0xc0 >> 1,
136 .i2c_reg_len
= REGLEN_8bit
,
139 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
140 .name
= "TDA10048-2",
141 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
142 .i2c_bus_addr
= 0x12 >> 1,
143 .i2c_reg_len
= REGLEN_8bit
,
146 [SAA7164_BOARD_HAUPPAUGE_HVR2200_3
] = {
147 .name
= "Hauppauge WinTV-HVR2200",
148 .porta
= SAA7164_MPEG_DVB
,
149 .portb
= SAA7164_MPEG_DVB
,
150 .portc
= SAA7164_MPEG_ENCODER
,
151 .portd
= SAA7164_MPEG_ENCODER
,
152 .porte
= SAA7164_MPEG_VBI
,
153 .portf
= SAA7164_MPEG_VBI
,
154 .chiprev
= SAA7164_CHIP_REV2
,
157 .type
= SAA7164_UNIT_EEPROM
,
159 .i2c_bus_nr
= SAA7164_I2C_BUS_0
,
160 .i2c_bus_addr
= 0xa0 >> 1,
161 .i2c_reg_len
= REGLEN_8bit
,
164 .type
= SAA7164_UNIT_TUNER
,
165 .name
= "TDA18271-1",
166 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
167 .i2c_bus_addr
= 0xc0 >> 1,
168 .i2c_reg_len
= REGLEN_8bit
,
171 .type
= SAA7164_UNIT_ANALOG_DEMODULATOR
,
173 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
174 .i2c_bus_addr
= 0x84 >> 1,
175 .i2c_reg_len
= REGLEN_8bit
,
178 .type
= SAA7164_UNIT_TUNER
,
179 .name
= "TDA18271-2",
180 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
181 .i2c_bus_addr
= 0xc0 >> 1,
182 .i2c_reg_len
= REGLEN_8bit
,
185 .type
= SAA7164_UNIT_ANALOG_DEMODULATOR
,
187 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
188 .i2c_bus_addr
= 0x84 >> 1,
189 .i2c_reg_len
= REGLEN_8bit
,
192 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
193 .name
= "TDA10048-1",
194 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
195 .i2c_bus_addr
= 0x10 >> 1,
196 .i2c_reg_len
= REGLEN_8bit
,
199 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
200 .name
= "TDA10048-2",
201 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
202 .i2c_bus_addr
= 0x12 >> 1,
203 .i2c_reg_len
= REGLEN_8bit
,
206 [SAA7164_BOARD_HAUPPAUGE_HVR2250
] = {
207 .name
= "Hauppauge WinTV-HVR2250",
208 .porta
= SAA7164_MPEG_DVB
,
209 .portb
= SAA7164_MPEG_DVB
,
210 .portc
= SAA7164_MPEG_ENCODER
,
211 .portd
= SAA7164_MPEG_ENCODER
,
212 .portc
= SAA7164_MPEG_ENCODER
,
213 .portd
= SAA7164_MPEG_ENCODER
,
214 .porte
= SAA7164_MPEG_VBI
,
215 .portf
= SAA7164_MPEG_VBI
,
216 .chiprev
= SAA7164_CHIP_REV3
,
219 .type
= SAA7164_UNIT_EEPROM
,
221 .i2c_bus_nr
= SAA7164_I2C_BUS_0
,
222 .i2c_bus_addr
= 0xa0 >> 1,
223 .i2c_reg_len
= REGLEN_8bit
,
226 .type
= SAA7164_UNIT_TUNER
,
227 .name
= "TDA18271-1",
228 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
229 .i2c_bus_addr
= 0xc0 >> 1,
230 .i2c_reg_len
= REGLEN_8bit
,
233 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
234 .name
= "CX24228/S5H1411-1 (TOP)",
235 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
236 .i2c_bus_addr
= 0x32 >> 1,
237 .i2c_reg_len
= REGLEN_8bit
,
240 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
241 .name
= "CX24228/S5H1411-1 (QAM)",
242 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
243 .i2c_bus_addr
= 0x34 >> 1,
244 .i2c_reg_len
= REGLEN_8bit
,
247 .type
= SAA7164_UNIT_TUNER
,
248 .name
= "TDA18271-2",
249 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
250 .i2c_bus_addr
= 0xc0 >> 1,
251 .i2c_reg_len
= REGLEN_8bit
,
254 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
255 .name
= "CX24228/S5H1411-2 (TOP)",
256 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
257 .i2c_bus_addr
= 0x32 >> 1,
258 .i2c_reg_len
= REGLEN_8bit
,
261 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
262 .name
= "CX24228/S5H1411-2 (QAM)",
263 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
264 .i2c_bus_addr
= 0x34 >> 1,
265 .i2c_reg_len
= REGLEN_8bit
,
268 [SAA7164_BOARD_HAUPPAUGE_HVR2250_2
] = {
269 .name
= "Hauppauge WinTV-HVR2250",
270 .porta
= SAA7164_MPEG_DVB
,
271 .portb
= SAA7164_MPEG_DVB
,
272 .portc
= SAA7164_MPEG_ENCODER
,
273 .portd
= SAA7164_MPEG_ENCODER
,
274 .porte
= SAA7164_MPEG_VBI
,
275 .portf
= SAA7164_MPEG_VBI
,
276 .porte
= SAA7164_MPEG_VBI
,
277 .portf
= SAA7164_MPEG_VBI
,
278 .chiprev
= SAA7164_CHIP_REV3
,
281 .type
= SAA7164_UNIT_EEPROM
,
283 .i2c_bus_nr
= SAA7164_I2C_BUS_0
,
284 .i2c_bus_addr
= 0xa0 >> 1,
285 .i2c_reg_len
= REGLEN_8bit
,
288 .type
= SAA7164_UNIT_TUNER
,
289 .name
= "TDA18271-1",
290 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
291 .i2c_bus_addr
= 0xc0 >> 1,
292 .i2c_reg_len
= REGLEN_8bit
,
295 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
296 .name
= "CX24228/S5H1411-1 (TOP)",
297 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
298 .i2c_bus_addr
= 0x32 >> 1,
299 .i2c_reg_len
= REGLEN_8bit
,
302 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
303 .name
= "CX24228/S5H1411-1 (QAM)",
304 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
305 .i2c_bus_addr
= 0x34 >> 1,
306 .i2c_reg_len
= REGLEN_8bit
,
309 .type
= SAA7164_UNIT_TUNER
,
310 .name
= "TDA18271-2",
311 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
312 .i2c_bus_addr
= 0xc0 >> 1,
313 .i2c_reg_len
= REGLEN_8bit
,
316 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
317 .name
= "CX24228/S5H1411-2 (TOP)",
318 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
319 .i2c_bus_addr
= 0x32 >> 1,
320 .i2c_reg_len
= REGLEN_8bit
,
323 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
324 .name
= "CX24228/S5H1411-2 (QAM)",
325 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
326 .i2c_bus_addr
= 0x34 >> 1,
327 .i2c_reg_len
= REGLEN_8bit
,
330 [SAA7164_BOARD_HAUPPAUGE_HVR2250_3
] = {
331 .name
= "Hauppauge WinTV-HVR2250",
332 .porta
= SAA7164_MPEG_DVB
,
333 .portb
= SAA7164_MPEG_DVB
,
334 .portc
= SAA7164_MPEG_ENCODER
,
335 .portd
= SAA7164_MPEG_ENCODER
,
336 .porte
= SAA7164_MPEG_VBI
,
337 .portf
= SAA7164_MPEG_VBI
,
338 .chiprev
= SAA7164_CHIP_REV3
,
341 .type
= SAA7164_UNIT_EEPROM
,
343 .i2c_bus_nr
= SAA7164_I2C_BUS_0
,
344 .i2c_bus_addr
= 0xa0 >> 1,
345 .i2c_reg_len
= REGLEN_8bit
,
348 .type
= SAA7164_UNIT_TUNER
,
349 .name
= "TDA18271-1",
350 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
351 .i2c_bus_addr
= 0xc0 >> 1,
352 .i2c_reg_len
= REGLEN_8bit
,
355 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
356 .name
= "CX24228/S5H1411-1 (TOP)",
357 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
358 .i2c_bus_addr
= 0x32 >> 1,
359 .i2c_reg_len
= REGLEN_8bit
,
362 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
363 .name
= "CX24228/S5H1411-1 (QAM)",
364 .i2c_bus_nr
= SAA7164_I2C_BUS_1
,
365 .i2c_bus_addr
= 0x34 >> 1,
366 .i2c_reg_len
= REGLEN_8bit
,
369 .type
= SAA7164_UNIT_TUNER
,
370 .name
= "TDA18271-2",
371 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
372 .i2c_bus_addr
= 0xc0 >> 1,
373 .i2c_reg_len
= REGLEN_8bit
,
376 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
377 .name
= "CX24228/S5H1411-2 (TOP)",
378 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
379 .i2c_bus_addr
= 0x32 >> 1,
380 .i2c_reg_len
= REGLEN_8bit
,
383 .type
= SAA7164_UNIT_DIGITAL_DEMODULATOR
,
384 .name
= "CX24228/S5H1411-2 (QAM)",
385 .i2c_bus_nr
= SAA7164_I2C_BUS_2
,
386 .i2c_bus_addr
= 0x34 >> 1,
387 .i2c_reg_len
= REGLEN_8bit
,
391 const unsigned int saa7164_bcount
= ARRAY_SIZE(saa7164_boards
);
393 /* ------------------------------------------------------------------ */
394 /* PCI subsystem IDs */
396 struct saa7164_subid saa7164_subids
[] = {
400 .card
= SAA7164_BOARD_HAUPPAUGE_HVR2250
,
404 .card
= SAA7164_BOARD_HAUPPAUGE_HVR2250
,
408 .card
= SAA7164_BOARD_HAUPPAUGE_HVR2200
,
412 .card
= SAA7164_BOARD_HAUPPAUGE_HVR2200_2
,
416 .card
= SAA7164_BOARD_HAUPPAUGE_HVR2200_3
,
420 .card
= SAA7164_BOARD_HAUPPAUGE_HVR2250_3
,
424 .card
= SAA7164_BOARD_HAUPPAUGE_HVR2250_2
,
428 .card
= SAA7164_BOARD_HAUPPAUGE_HVR2250_2
,
431 const unsigned int saa7164_idcount
= ARRAY_SIZE(saa7164_subids
);
433 void saa7164_card_list(struct saa7164_dev
*dev
)
437 if (0 == dev
->pci
->subsystem_vendor
&&
438 0 == dev
->pci
->subsystem_device
) {
440 "%s: Board has no valid PCIe Subsystem ID and can't\n"
441 "%s: be autodetected. Pass card=<n> insmod option to\n"
442 "%s: workaround that. Send complaints to the vendor\n"
443 "%s: of the TV card. Best regards,\n"
445 dev
->name
, dev
->name
, dev
->name
, dev
->name
, dev
->name
);
448 "%s: Your board isn't known (yet) to the driver.\n"
449 "%s: Try to pick one of the existing card configs via\n"
450 "%s: card=<n> insmod option. Updating to the latest\n"
451 "%s: version might help as well.\n",
452 dev
->name
, dev
->name
, dev
->name
, dev
->name
);
455 printk(KERN_ERR
"%s: Here are valid choices for the card=<n> insmod "
456 "option:\n", dev
->name
);
458 for (i
= 0; i
< saa7164_bcount
; i
++)
459 printk(KERN_ERR
"%s: card=%d -> %s\n",
460 dev
->name
, i
, saa7164_boards
[i
].name
);
463 /* TODO: clean this define up into the -cards.c structs */
464 #define PCIEBRIDGE_UNITID 2
466 void saa7164_gpio_setup(struct saa7164_dev
*dev
)
468 switch (dev
->board
) {
469 case SAA7164_BOARD_HAUPPAUGE_HVR2200
:
470 case SAA7164_BOARD_HAUPPAUGE_HVR2200_2
:
471 case SAA7164_BOARD_HAUPPAUGE_HVR2200_3
:
472 case SAA7164_BOARD_HAUPPAUGE_HVR2250
:
473 case SAA7164_BOARD_HAUPPAUGE_HVR2250_2
:
474 case SAA7164_BOARD_HAUPPAUGE_HVR2250_3
:
476 GPIO 2: s5h1411 / tda10048-1 demod reset
477 GPIO 3: s5h1411 / tda10048-2 demod reset
478 GPIO 7: IRBlaster Zilog reset
481 /* Reset parts by going in and out of reset */
482 saa7164_api_clear_gpiobit(dev
, PCIEBRIDGE_UNITID
, 2);
483 saa7164_api_clear_gpiobit(dev
, PCIEBRIDGE_UNITID
, 3);
487 saa7164_api_set_gpiobit(dev
, PCIEBRIDGE_UNITID
, 2);
488 saa7164_api_set_gpiobit(dev
, PCIEBRIDGE_UNITID
, 3);
493 static void hauppauge_eeprom(struct saa7164_dev
*dev
, u8
*eeprom_data
)
497 /* TODO: Assumption: eeprom on bus 0 */
498 tveeprom_hauppauge_analog(&dev
->i2c_bus
[0].i2c_client
, &tv
,
501 /* Make sure we support the board model */
504 /* Development board - Limit circulation */
505 /* WinTV-HVR2250 (PCIe, Retail, full-height bracket)
506 * ATSC/QAM (TDA18271/S5H1411) and basic analog, no IR, FM */
508 /* WinTV-HVR2250 (PCIe, Retail, full-height bracket)
509 * ATSC/QAM (TDA18271/S5H1411) and basic analog, MCE CIR, FM */
512 /* WinTV-HVR2250 (PCIe, Retail, full-height bracket)
513 * ATSC/QAM (TDA18271/S5H1411) and basic analog, no IR, FM */
516 /* WinTV-HVR2250 (PCIe, Retail, full-height bracket)
517 * ATSC/QAM (TDA18271/S5H1411) and basic analog, FM */
521 /* WinTV-HVR2200 (PCIe, Retail, full-height)
522 * DVB-T (TDA18271/TDA10048) and basic analog, no IR */
525 /* WinTV-HVR2200 (PCIe, Retail, half-height)
526 * DVB-T (TDA18271/TDA10048) and basic analog, no IR */
529 printk(KERN_ERR
"%s: Warning: Unknown Hauppauge model #%d\n",
530 dev
->name
, tv
.model
);
534 printk(KERN_INFO
"%s: Hauppauge eeprom: model=%d\n", dev
->name
,
538 void saa7164_card_setup(struct saa7164_dev
*dev
)
540 static u8 eeprom
[256];
542 if (dev
->i2c_bus
[0].i2c_rc
== 0) {
543 if (saa7164_api_read_eeprom(dev
, &eeprom
[0],
548 switch (dev
->board
) {
549 case SAA7164_BOARD_HAUPPAUGE_HVR2200
:
550 case SAA7164_BOARD_HAUPPAUGE_HVR2200_2
:
551 case SAA7164_BOARD_HAUPPAUGE_HVR2200_3
:
552 case SAA7164_BOARD_HAUPPAUGE_HVR2250
:
553 case SAA7164_BOARD_HAUPPAUGE_HVR2250_2
:
554 case SAA7164_BOARD_HAUPPAUGE_HVR2250_3
:
555 hauppauge_eeprom(dev
, &eeprom
[0]);
560 /* With most other drivers, the kernel expects to communicate with subdrivers
561 * through i2c. This bridge does not allow that, it does not expose any direct
562 * access to I2C. Instead we have to communicate through the device f/w for
563 * register access to 'processing units'. Each unit has a unique
564 * id, regardless of how the physical implementation occurs across
565 * the three physical i2c busses. The being said if we want leverge of
566 * the existing kernel drivers for tuners and demods we have to 'speak i2c',
567 * to this bridge implements 3 virtual i2c buses. This is a helper function
570 * Description: Translate the kernels notion of an i2c address and bus into
571 * the appropriate unitid.
573 int saa7164_i2caddr_to_unitid(struct saa7164_i2c
*bus
, int addr
)
575 /* For a given bus and i2c device address, return the saa7164 unique
576 * unitid. < 0 on error */
578 struct saa7164_dev
*dev
= bus
->dev
;
579 struct saa7164_unit
*unit
;
582 for (i
= 0; i
< SAA7164_MAX_UNITS
; i
++) {
583 unit
= &saa7164_boards
[dev
->board
].unit
[i
];
585 if (unit
->type
== SAA7164_UNIT_UNDEFINED
)
587 if ((bus
->nr
== unit
->i2c_bus_nr
) &&
588 (addr
== unit
->i2c_bus_addr
))
595 /* The 7164 API needs to know the i2c register length in advance.
596 * this is a helper function. Based on a specific chip addr and bus return the
599 int saa7164_i2caddr_to_reglen(struct saa7164_i2c
*bus
, int addr
)
601 /* For a given bus and i2c device address, return the
602 * saa7164 registry address width. < 0 on error
605 struct saa7164_dev
*dev
= bus
->dev
;
606 struct saa7164_unit
*unit
;
609 for (i
= 0; i
< SAA7164_MAX_UNITS
; i
++) {
610 unit
= &saa7164_boards
[dev
->board
].unit
[i
];
612 if (unit
->type
== SAA7164_UNIT_UNDEFINED
)
615 if ((bus
->nr
== unit
->i2c_bus_nr
) &&
616 (addr
== unit
->i2c_bus_addr
))
617 return unit
->i2c_reg_len
;
622 /* TODO: implement a 'findeeprom' functio like the above and fix any other
623 * eeprom related todo's in -api.c.
626 /* Translate a unitid into a x readable device name, for display purposes. */
627 char *saa7164_unitid_name(struct saa7164_dev
*dev
, u8 unitid
)
629 char *undefed
= "UNDEFINED";
630 char *bridge
= "BRIDGE";
631 struct saa7164_unit
*unit
;
637 for (i
= 0; i
< SAA7164_MAX_UNITS
; i
++) {
638 unit
= &saa7164_boards
[dev
->board
].unit
[i
];
640 if (unit
->type
== SAA7164_UNIT_UNDEFINED
)
643 if (unitid
== unit
->id
)