Commit | Line | Data |
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443c1228 ST |
1 | /* |
2 | * Driver for the NXP SAA7164 PCIe bridge | |
3 | * | |
4 | * Copyright (c) 2009 Steven Toth <stoth@kernellabs.com> | |
5 | * | |
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. | |
10 | * | |
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 | |
14 | * | |
15 | * GNU General Public License for more details. | |
16 | * | |
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. | |
20 | */ | |
21 | ||
22 | #include <linux/wait.h> | |
5a0e3ad6 | 23 | #include <linux/slab.h> |
443c1228 ST |
24 | |
25 | #include "saa7164.h" | |
26 | ||
27 | int saa7164_api_transition_port(struct saa7164_tsport *port, u8 mode) | |
28 | { | |
29 | int ret; | |
30 | ||
31 | ret = saa7164_cmd_send(port->dev, port->hwcfg.unitid, SET_CUR, | |
32 | SAA_STATE_CONTROL, sizeof(mode), &mode); | |
33 | if (ret != SAA_OK) | |
34 | printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret); | |
35 | ||
36 | return ret; | |
37 | } | |
38 | ||
39 | int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version) | |
40 | { | |
41 | int ret; | |
42 | ||
43 | ret = saa7164_cmd_send(dev, 0, GET_CUR, | |
44 | GET_FW_VERSION_CONTROL, sizeof(u32), version); | |
45 | if (ret != SAA_OK) | |
46 | printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret); | |
47 | ||
48 | return ret; | |
49 | } | |
50 | ||
51 | int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen) | |
52 | { | |
53 | u8 reg[] = { 0x0f, 0x00 }; | |
54 | ||
55 | if (buflen < 128) | |
56 | return -ENOMEM; | |
57 | ||
58 | /* Assumption: Hauppauge eeprom is at 0xa0 on on bus 0 */ | |
59 | /* TODO: Pull the details from the boards struct */ | |
60 | return saa7164_api_i2c_read(&dev->i2c_bus[0], 0xa0 >> 1, sizeof(reg), | |
61 | ®[0], 128, buf); | |
62 | } | |
63 | ||
443c1228 ST |
64 | |
65 | int saa7164_api_configure_port_mpeg2ts(struct saa7164_dev *dev, | |
66 | struct saa7164_tsport *port, | |
67 | tmComResTSFormatDescrHeader_t *tsfmt) | |
68 | { | |
69 | dprintk(DBGLVL_API, " bFormatIndex = 0x%x\n", tsfmt->bFormatIndex); | |
70 | dprintk(DBGLVL_API, " bDataOffset = 0x%x\n", tsfmt->bDataOffset); | |
71 | dprintk(DBGLVL_API, " bPacketLength= 0x%x\n", tsfmt->bPacketLength); | |
72 | dprintk(DBGLVL_API, " bStrideLength= 0x%x\n", tsfmt->bStrideLength); | |
73 | dprintk(DBGLVL_API, " bguid = (....)\n"); | |
74 | ||
75 | /* Cache the hardware configuration in the port */ | |
76 | ||
77 | port->bufcounter = port->hwcfg.BARLocation; | |
78 | port->pitch = port->hwcfg.BARLocation + (2 * sizeof(u32)); | |
79 | port->bufsize = port->hwcfg.BARLocation + (3 * sizeof(u32)); | |
80 | port->bufoffset = port->hwcfg.BARLocation + (4 * sizeof(u32)); | |
81 | port->bufptr32l = port->hwcfg.BARLocation + | |
82 | (4 * sizeof(u32)) + | |
83 | (sizeof(u32) * port->hwcfg.buffercount) + sizeof(u32); | |
84 | port->bufptr32h = port->hwcfg.BARLocation + | |
85 | (4 * sizeof(u32)) + | |
86 | (sizeof(u32) * port->hwcfg.buffercount); | |
87 | port->bufptr64 = port->hwcfg.BARLocation + | |
88 | (4 * sizeof(u32)) + | |
89 | (sizeof(u32) * port->hwcfg.buffercount); | |
90 | dprintk(DBGLVL_API, " = port->hwcfg.BARLocation = 0x%x\n", | |
91 | port->hwcfg.BARLocation); | |
92 | ||
93 | dprintk(DBGLVL_API, " = VS_FORMAT_MPEGTS (becomes dev->ts[%d])\n", | |
94 | port->nr); | |
95 | ||
96 | return 0; | |
97 | } | |
98 | ||
99 | int saa7164_api_dump_subdevs(struct saa7164_dev *dev, u8 *buf, int len) | |
100 | { | |
101 | struct saa7164_tsport *port = 0; | |
102 | u32 idx, next_offset; | |
103 | int i; | |
104 | tmComResDescrHeader_t *hdr, *t; | |
105 | tmComResExtDevDescrHeader_t *exthdr; | |
106 | tmComResPathDescrHeader_t *pathhdr; | |
107 | tmComResAntTermDescrHeader_t *anttermhdr; | |
108 | tmComResTunerDescrHeader_t *tunerunithdr; | |
109 | tmComResDMATermDescrHeader_t *vcoutputtermhdr; | |
110 | tmComResTSFormatDescrHeader_t *tsfmt; | |
111 | u32 currpath = 0; | |
112 | ||
113 | dprintk(DBGLVL_API, | |
207b42c4 ST |
114 | "%s(?,?,%d) sizeof(tmComResDescrHeader_t) = %d bytes\n", |
115 | __func__, len, (u32)sizeof(tmComResDescrHeader_t)); | |
443c1228 ST |
116 | |
117 | for (idx = 0; idx < (len - sizeof(tmComResDescrHeader_t)); ) { | |
118 | ||
119 | hdr = (tmComResDescrHeader_t *)(buf + idx); | |
120 | ||
121 | if (hdr->type != CS_INTERFACE) | |
122 | return SAA_ERR_NOT_SUPPORTED; | |
123 | ||
124 | dprintk(DBGLVL_API, "@ 0x%x = \n", idx); | |
125 | switch (hdr->subtype) { | |
126 | case GENERAL_REQUEST: | |
127 | dprintk(DBGLVL_API, " GENERAL_REQUEST\n"); | |
128 | break; | |
129 | case VC_TUNER_PATH: | |
130 | dprintk(DBGLVL_API, " VC_TUNER_PATH\n"); | |
131 | pathhdr = (tmComResPathDescrHeader_t *)(buf + idx); | |
132 | dprintk(DBGLVL_API, " pathid = 0x%x\n", | |
133 | pathhdr->pathid); | |
134 | currpath = pathhdr->pathid; | |
135 | break; | |
136 | case VC_INPUT_TERMINAL: | |
137 | dprintk(DBGLVL_API, " VC_INPUT_TERMINAL\n"); | |
138 | anttermhdr = | |
139 | (tmComResAntTermDescrHeader_t *)(buf + idx); | |
140 | dprintk(DBGLVL_API, " terminalid = 0x%x\n", | |
141 | anttermhdr->terminalid); | |
142 | dprintk(DBGLVL_API, " terminaltype = 0x%x\n", | |
143 | anttermhdr->terminaltype); | |
144 | switch (anttermhdr->terminaltype) { | |
145 | case ITT_ANTENNA: | |
146 | dprintk(DBGLVL_API, " = ITT_ANTENNA\n"); | |
147 | break; | |
148 | case LINE_CONNECTOR: | |
149 | dprintk(DBGLVL_API, " = LINE_CONNECTOR\n"); | |
150 | break; | |
151 | case SPDIF_CONNECTOR: | |
152 | dprintk(DBGLVL_API, " = SPDIF_CONNECTOR\n"); | |
153 | break; | |
154 | case COMPOSITE_CONNECTOR: | |
155 | dprintk(DBGLVL_API, | |
156 | " = COMPOSITE_CONNECTOR\n"); | |
157 | break; | |
158 | case SVIDEO_CONNECTOR: | |
159 | dprintk(DBGLVL_API, " = SVIDEO_CONNECTOR\n"); | |
160 | break; | |
161 | case COMPONENT_CONNECTOR: | |
162 | dprintk(DBGLVL_API, | |
163 | " = COMPONENT_CONNECTOR\n"); | |
164 | break; | |
165 | case STANDARD_DMA: | |
166 | dprintk(DBGLVL_API, " = STANDARD_DMA\n"); | |
167 | break; | |
168 | default: | |
169 | dprintk(DBGLVL_API, " = undefined (0x%x)\n", | |
170 | anttermhdr->terminaltype); | |
171 | } | |
172 | dprintk(DBGLVL_API, " assocterminal= 0x%x\n", | |
173 | anttermhdr->assocterminal); | |
174 | dprintk(DBGLVL_API, " iterminal = 0x%x\n", | |
175 | anttermhdr->iterminal); | |
176 | dprintk(DBGLVL_API, " controlsize = 0x%x\n", | |
177 | anttermhdr->controlsize); | |
178 | break; | |
179 | case VC_OUTPUT_TERMINAL: | |
180 | dprintk(DBGLVL_API, " VC_OUTPUT_TERMINAL\n"); | |
181 | vcoutputtermhdr = | |
182 | (tmComResDMATermDescrHeader_t *)(buf + idx); | |
183 | dprintk(DBGLVL_API, " unitid = 0x%x\n", | |
184 | vcoutputtermhdr->unitid); | |
185 | dprintk(DBGLVL_API, " terminaltype = 0x%x\n", | |
186 | vcoutputtermhdr->terminaltype); | |
187 | switch (vcoutputtermhdr->terminaltype) { | |
188 | case ITT_ANTENNA: | |
189 | dprintk(DBGLVL_API, " = ITT_ANTENNA\n"); | |
190 | break; | |
191 | case LINE_CONNECTOR: | |
192 | dprintk(DBGLVL_API, " = LINE_CONNECTOR\n"); | |
193 | break; | |
194 | case SPDIF_CONNECTOR: | |
195 | dprintk(DBGLVL_API, " = SPDIF_CONNECTOR\n"); | |
196 | break; | |
197 | case COMPOSITE_CONNECTOR: | |
198 | dprintk(DBGLVL_API, | |
199 | " = COMPOSITE_CONNECTOR\n"); | |
200 | break; | |
201 | case SVIDEO_CONNECTOR: | |
202 | dprintk(DBGLVL_API, " = SVIDEO_CONNECTOR\n"); | |
203 | break; | |
204 | case COMPONENT_CONNECTOR: | |
205 | dprintk(DBGLVL_API, | |
206 | " = COMPONENT_CONNECTOR\n"); | |
207 | break; | |
208 | case STANDARD_DMA: | |
209 | dprintk(DBGLVL_API, " = STANDARD_DMA\n"); | |
210 | break; | |
211 | default: | |
212 | dprintk(DBGLVL_API, " = undefined (0x%x)\n", | |
213 | vcoutputtermhdr->terminaltype); | |
214 | } | |
215 | dprintk(DBGLVL_API, " assocterminal= 0x%x\n", | |
216 | vcoutputtermhdr->assocterminal); | |
217 | dprintk(DBGLVL_API, " sourceid = 0x%x\n", | |
218 | vcoutputtermhdr->sourceid); | |
219 | dprintk(DBGLVL_API, " iterminal = 0x%x\n", | |
220 | vcoutputtermhdr->iterminal); | |
221 | dprintk(DBGLVL_API, " BARLocation = 0x%x\n", | |
222 | vcoutputtermhdr->BARLocation); | |
223 | dprintk(DBGLVL_API, " flags = 0x%x\n", | |
224 | vcoutputtermhdr->flags); | |
225 | dprintk(DBGLVL_API, " interruptid = 0x%x\n", | |
226 | vcoutputtermhdr->interruptid); | |
227 | dprintk(DBGLVL_API, " buffercount = 0x%x\n", | |
228 | vcoutputtermhdr->buffercount); | |
229 | dprintk(DBGLVL_API, " metadatasize = 0x%x\n", | |
230 | vcoutputtermhdr->metadatasize); | |
231 | dprintk(DBGLVL_API, " controlsize = 0x%x\n", | |
232 | vcoutputtermhdr->controlsize); | |
233 | dprintk(DBGLVL_API, " numformats = 0x%x\n", | |
234 | vcoutputtermhdr->numformats); | |
235 | ||
236 | t = (tmComResDescrHeader_t *) | |
237 | ((tmComResDMATermDescrHeader_t *)(buf + idx)); | |
238 | next_offset = idx + (vcoutputtermhdr->len); | |
239 | for (i = 0; i < vcoutputtermhdr->numformats; i++) { | |
240 | t = (tmComResDescrHeader_t *) | |
241 | (buf + next_offset); | |
242 | switch (t->subtype) { | |
243 | case VS_FORMAT_MPEG2TS: | |
244 | tsfmt = | |
245 | (tmComResTSFormatDescrHeader_t *)t; | |
246 | if (currpath == 1) | |
247 | port = &dev->ts1; | |
248 | else | |
249 | port = &dev->ts2; | |
250 | memcpy(&port->hwcfg, vcoutputtermhdr, | |
251 | sizeof(*vcoutputtermhdr)); | |
252 | saa7164_api_configure_port_mpeg2ts(dev, | |
253 | port, tsfmt); | |
254 | break; | |
255 | case VS_FORMAT_MPEG2PS: | |
256 | dprintk(DBGLVL_API, | |
257 | " = VS_FORMAT_MPEG2PS\n"); | |
258 | break; | |
259 | case VS_FORMAT_VBI: | |
260 | dprintk(DBGLVL_API, | |
261 | " = VS_FORMAT_VBI\n"); | |
262 | break; | |
263 | case VS_FORMAT_RDS: | |
264 | dprintk(DBGLVL_API, | |
265 | " = VS_FORMAT_RDS\n"); | |
266 | break; | |
267 | case VS_FORMAT_UNCOMPRESSED: | |
268 | dprintk(DBGLVL_API, | |
269 | " = VS_FORMAT_UNCOMPRESSED\n"); | |
270 | break; | |
271 | case VS_FORMAT_TYPE: | |
272 | dprintk(DBGLVL_API, | |
273 | " = VS_FORMAT_TYPE\n"); | |
274 | break; | |
275 | default: | |
276 | dprintk(DBGLVL_API, | |
277 | " = undefined (0x%x)\n", | |
278 | t->subtype); | |
279 | } | |
280 | next_offset += t->len; | |
281 | } | |
282 | ||
283 | break; | |
284 | case TUNER_UNIT: | |
285 | dprintk(DBGLVL_API, " TUNER_UNIT\n"); | |
286 | tunerunithdr = | |
287 | (tmComResTunerDescrHeader_t *)(buf + idx); | |
288 | dprintk(DBGLVL_API, " unitid = 0x%x\n", | |
289 | tunerunithdr->unitid); | |
290 | dprintk(DBGLVL_API, " sourceid = 0x%x\n", | |
291 | tunerunithdr->sourceid); | |
292 | dprintk(DBGLVL_API, " iunit = 0x%x\n", | |
293 | tunerunithdr->iunit); | |
294 | dprintk(DBGLVL_API, " tuningstandards = 0x%x\n", | |
295 | tunerunithdr->tuningstandards); | |
296 | dprintk(DBGLVL_API, " controlsize = 0x%x\n", | |
297 | tunerunithdr->controlsize); | |
298 | dprintk(DBGLVL_API, " controls = 0x%x\n", | |
299 | tunerunithdr->controls); | |
300 | break; | |
301 | case VC_SELECTOR_UNIT: | |
302 | dprintk(DBGLVL_API, " VC_SELECTOR_UNIT\n"); | |
303 | break; | |
304 | case VC_PROCESSING_UNIT: | |
305 | dprintk(DBGLVL_API, " VC_PROCESSING_UNIT\n"); | |
306 | break; | |
307 | case FEATURE_UNIT: | |
308 | dprintk(DBGLVL_API, " FEATURE_UNIT\n"); | |
309 | break; | |
310 | case ENCODER_UNIT: | |
311 | dprintk(DBGLVL_API, " ENCODER_UNIT\n"); | |
312 | break; | |
313 | case EXTENSION_UNIT: | |
314 | dprintk(DBGLVL_API, " EXTENSION_UNIT\n"); | |
315 | exthdr = (tmComResExtDevDescrHeader_t *)(buf + idx); | |
316 | dprintk(DBGLVL_API, " unitid = 0x%x\n", | |
317 | exthdr->unitid); | |
318 | dprintk(DBGLVL_API, " deviceid = 0x%x\n", | |
319 | exthdr->deviceid); | |
320 | dprintk(DBGLVL_API, " devicetype = 0x%x\n", | |
321 | exthdr->devicetype); | |
322 | if (exthdr->devicetype & 0x1) | |
323 | dprintk(DBGLVL_API, " = Decoder Device\n"); | |
324 | if (exthdr->devicetype & 0x2) | |
325 | dprintk(DBGLVL_API, " = GPIO Source\n"); | |
326 | if (exthdr->devicetype & 0x4) | |
327 | dprintk(DBGLVL_API, " = Video Decoder\n"); | |
328 | if (exthdr->devicetype & 0x8) | |
329 | dprintk(DBGLVL_API, " = Audio Decoder\n"); | |
330 | if (exthdr->devicetype & 0x20) | |
331 | dprintk(DBGLVL_API, " = Crossbar\n"); | |
332 | if (exthdr->devicetype & 0x40) | |
333 | dprintk(DBGLVL_API, " = Tuner\n"); | |
334 | if (exthdr->devicetype & 0x80) | |
335 | dprintk(DBGLVL_API, " = IF PLL\n"); | |
336 | if (exthdr->devicetype & 0x100) | |
337 | dprintk(DBGLVL_API, " = Demodulator\n"); | |
338 | if (exthdr->devicetype & 0x200) | |
339 | dprintk(DBGLVL_API, " = RDS Decoder\n"); | |
340 | if (exthdr->devicetype & 0x400) | |
341 | dprintk(DBGLVL_API, " = Encoder\n"); | |
342 | if (exthdr->devicetype & 0x800) | |
343 | dprintk(DBGLVL_API, " = IR Decoder\n"); | |
344 | if (exthdr->devicetype & 0x1000) | |
345 | dprintk(DBGLVL_API, " = EEPROM\n"); | |
346 | if (exthdr->devicetype & 0x2000) | |
347 | dprintk(DBGLVL_API, | |
348 | " = VBI Decoder\n"); | |
349 | if (exthdr->devicetype & 0x10000) | |
350 | dprintk(DBGLVL_API, | |
351 | " = Streaming Device\n"); | |
352 | if (exthdr->devicetype & 0x20000) | |
353 | dprintk(DBGLVL_API, | |
354 | " = DRM Device\n"); | |
355 | if (exthdr->devicetype & 0x40000000) | |
356 | dprintk(DBGLVL_API, | |
357 | " = Generic Device\n"); | |
358 | if (exthdr->devicetype & 0x80000000) | |
359 | dprintk(DBGLVL_API, | |
360 | " = Config Space Device\n"); | |
361 | dprintk(DBGLVL_API, " numgpiopins = 0x%x\n", | |
362 | exthdr->numgpiopins); | |
363 | dprintk(DBGLVL_API, " numgpiogroups = 0x%x\n", | |
364 | exthdr->numgpiogroups); | |
365 | dprintk(DBGLVL_API, " controlsize = 0x%x\n", | |
366 | exthdr->controlsize); | |
367 | break; | |
368 | case PVC_INFRARED_UNIT: | |
369 | dprintk(DBGLVL_API, " PVC_INFRARED_UNIT\n"); | |
370 | break; | |
371 | case DRM_UNIT: | |
372 | dprintk(DBGLVL_API, " DRM_UNIT\n"); | |
373 | break; | |
374 | default: | |
375 | dprintk(DBGLVL_API, "default %d\n", hdr->subtype); | |
376 | } | |
377 | ||
378 | dprintk(DBGLVL_API, " 1.%x\n", hdr->len); | |
379 | dprintk(DBGLVL_API, " 2.%x\n", hdr->type); | |
380 | dprintk(DBGLVL_API, " 3.%x\n", hdr->subtype); | |
381 | dprintk(DBGLVL_API, " 4.%x\n", hdr->unitid); | |
382 | ||
383 | idx += hdr->len; | |
384 | } | |
385 | ||
386 | return 0; | |
387 | } | |
388 | ||
389 | int saa7164_api_enum_subdevs(struct saa7164_dev *dev) | |
390 | { | |
391 | int ret; | |
392 | u32 buflen = 0; | |
393 | u8 *buf; | |
394 | ||
395 | dprintk(DBGLVL_API, "%s()\n", __func__); | |
396 | ||
397 | /* Get the total descriptor length */ | |
398 | ret = saa7164_cmd_send(dev, 0, GET_LEN, | |
399 | GET_DESCRIPTORS_CONTROL, sizeof(buflen), &buflen); | |
400 | if (ret != SAA_OK) | |
401 | printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret); | |
402 | ||
403 | dprintk(DBGLVL_API, "%s() total descriptor size = %d bytes.\n", | |
404 | __func__, buflen); | |
405 | ||
406 | /* Allocate enough storage for all of the descs */ | |
407 | buf = kzalloc(buflen, GFP_KERNEL); | |
408 | if (buf == NULL) | |
409 | return SAA_ERR_NO_RESOURCES; | |
410 | ||
411 | /* Retrieve them */ | |
412 | ret = saa7164_cmd_send(dev, 0, GET_CUR, | |
413 | GET_DESCRIPTORS_CONTROL, buflen, buf); | |
414 | if (ret != SAA_OK) { | |
415 | printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret); | |
416 | goto out; | |
417 | } | |
418 | ||
b1912a85 | 419 | if (saa_debug & DBGLVL_API) |
443c1228 ST |
420 | saa7164_dumphex16(dev, buf, (buflen/16)*16); |
421 | ||
422 | saa7164_api_dump_subdevs(dev, buf, buflen); | |
423 | ||
424 | out: | |
425 | kfree(buf); | |
426 | return ret; | |
427 | } | |
428 | ||
429 | int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg, | |
430 | u32 datalen, u8 *data) | |
431 | { | |
432 | struct saa7164_dev *dev = bus->dev; | |
433 | u16 len = 0; | |
434 | int unitid; | |
435 | u32 regval; | |
436 | u8 buf[256]; | |
437 | int ret; | |
438 | ||
439 | dprintk(DBGLVL_API, "%s()\n", __func__); | |
440 | ||
441 | if (reglen > 4) | |
442 | return -EIO; | |
443 | ||
444 | if (reglen == 1) | |
445 | regval = *(reg); | |
446 | else | |
447 | if (reglen == 2) | |
448 | regval = ((*(reg) << 8) || *(reg+1)); | |
449 | else | |
450 | if (reglen == 3) | |
451 | regval = ((*(reg) << 16) | (*(reg+1) << 8) | *(reg+2)); | |
452 | else | |
453 | if (reglen == 4) | |
454 | regval = ((*(reg) << 24) | (*(reg+1) << 16) | | |
455 | (*(reg+2) << 8) | *(reg+3)); | |
456 | ||
457 | /* Prepare the send buffer */ | |
458 | /* Bytes 00-03 source register length | |
459 | * 04-07 source bytes to read | |
460 | * 08... register address | |
461 | */ | |
462 | memset(buf, 0, sizeof(buf)); | |
463 | memcpy((buf + 2 * sizeof(u32) + 0), reg, reglen); | |
464 | *((u32 *)(buf + 0 * sizeof(u32))) = reglen; | |
465 | *((u32 *)(buf + 1 * sizeof(u32))) = datalen; | |
466 | ||
467 | unitid = saa7164_i2caddr_to_unitid(bus, addr); | |
468 | if (unitid < 0) { | |
469 | printk(KERN_ERR | |
470 | "%s() error, cannot translate regaddr 0x%x to unitid\n", | |
471 | __func__, addr); | |
472 | return -EIO; | |
473 | } | |
474 | ||
475 | ret = saa7164_cmd_send(bus->dev, unitid, GET_LEN, | |
476 | EXU_REGISTER_ACCESS_CONTROL, sizeof(len), &len); | |
477 | if (ret != SAA_OK) { | |
478 | printk(KERN_ERR "%s() error, ret(1) = 0x%x\n", __func__, ret); | |
479 | return -EIO; | |
480 | } | |
481 | ||
482 | dprintk(DBGLVL_API, "%s() len = %d bytes\n", __func__, len); | |
483 | ||
b1912a85 | 484 | if (saa_debug & DBGLVL_I2C) |
443c1228 ST |
485 | saa7164_dumphex16(dev, buf, 2 * 16); |
486 | ||
487 | ret = saa7164_cmd_send(bus->dev, unitid, GET_CUR, | |
488 | EXU_REGISTER_ACCESS_CONTROL, len, &buf); | |
489 | if (ret != SAA_OK) | |
490 | printk(KERN_ERR "%s() error, ret(2) = 0x%x\n", __func__, ret); | |
491 | else { | |
b1912a85 | 492 | if (saa_debug & DBGLVL_I2C) |
443c1228 ST |
493 | saa7164_dumphex16(dev, buf, sizeof(buf)); |
494 | memcpy(data, (buf + 2 * sizeof(u32) + reglen), datalen); | |
495 | } | |
496 | ||
497 | return ret == SAA_OK ? 0 : -EIO; | |
498 | } | |
499 | ||
500 | /* For a given 8 bit i2c address device, write the buffer */ | |
501 | int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr, u32 datalen, | |
502 | u8 *data) | |
503 | { | |
504 | struct saa7164_dev *dev = bus->dev; | |
505 | u16 len = 0; | |
506 | int unitid; | |
507 | int reglen; | |
508 | u8 buf[256]; | |
509 | int ret; | |
510 | ||
511 | dprintk(DBGLVL_API, "%s()\n", __func__); | |
512 | ||
513 | if ((datalen == 0) || (datalen > 232)) | |
514 | return -EIO; | |
515 | ||
516 | memset(buf, 0, sizeof(buf)); | |
517 | ||
518 | unitid = saa7164_i2caddr_to_unitid(bus, addr); | |
519 | if (unitid < 0) { | |
520 | printk(KERN_ERR | |
521 | "%s() error, cannot translate regaddr 0x%x to unitid\n", | |
522 | __func__, addr); | |
523 | return -EIO; | |
524 | } | |
525 | ||
526 | reglen = saa7164_i2caddr_to_reglen(bus, addr); | |
ad695510 | 527 | if (reglen < 0) { |
443c1228 ST |
528 | printk(KERN_ERR |
529 | "%s() error, cannot translate regaddr to reglen\n", | |
530 | __func__); | |
531 | return -EIO; | |
532 | } | |
533 | ||
534 | ret = saa7164_cmd_send(bus->dev, unitid, GET_LEN, | |
535 | EXU_REGISTER_ACCESS_CONTROL, sizeof(len), &len); | |
536 | if (ret != SAA_OK) { | |
537 | printk(KERN_ERR "%s() error, ret(1) = 0x%x\n", __func__, ret); | |
538 | return -EIO; | |
539 | } | |
540 | ||
541 | dprintk(DBGLVL_API, "%s() len = %d bytes\n", __func__, len); | |
542 | ||
543 | /* Prepare the send buffer */ | |
544 | /* Bytes 00-03 dest register length | |
545 | * 04-07 dest bytes to write | |
546 | * 08... register address | |
547 | */ | |
548 | *((u32 *)(buf + 0 * sizeof(u32))) = reglen; | |
549 | *((u32 *)(buf + 1 * sizeof(u32))) = datalen - reglen; | |
550 | memcpy((buf + 2 * sizeof(u32)), data, datalen); | |
551 | ||
b1912a85 | 552 | if (saa_debug & DBGLVL_I2C) |
443c1228 ST |
553 | saa7164_dumphex16(dev, buf, sizeof(buf)); |
554 | ||
555 | ret = saa7164_cmd_send(bus->dev, unitid, SET_CUR, | |
556 | EXU_REGISTER_ACCESS_CONTROL, len, &buf); | |
557 | if (ret != SAA_OK) | |
558 | printk(KERN_ERR "%s() error, ret(2) = 0x%x\n", __func__, ret); | |
559 | ||
560 | return ret == SAA_OK ? 0 : -EIO; | |
561 | } | |
562 | ||
563 | ||
564 | int saa7164_api_modify_gpio(struct saa7164_dev *dev, u8 unitid, | |
565 | u8 pin, u8 state) | |
566 | { | |
567 | int ret; | |
568 | tmComResGPIO_t t; | |
569 | ||
570 | dprintk(DBGLVL_API, "%s(0x%x, %d, %d)\n", | |
571 | __func__, unitid, pin, state); | |
572 | ||
573 | if ((pin > 7) || (state > 2)) | |
574 | return SAA_ERR_BAD_PARAMETER; | |
575 | ||
576 | t.pin = pin; | |
577 | t.state = state; | |
578 | ||
579 | ret = saa7164_cmd_send(dev, unitid, SET_CUR, | |
580 | EXU_GPIO_CONTROL, sizeof(t), &t); | |
581 | if (ret != SAA_OK) | |
582 | printk(KERN_ERR "%s() error, ret = 0x%x\n", | |
583 | __func__, ret); | |
584 | ||
585 | return ret; | |
586 | } | |
587 | ||
588 | int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, | |
589 | u8 pin) | |
590 | { | |
591 | return saa7164_api_modify_gpio(dev, unitid, pin, 1); | |
592 | } | |
593 | ||
594 | int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, | |
595 | u8 pin) | |
596 | { | |
597 | return saa7164_api_modify_gpio(dev, unitid, pin, 0); | |
598 | } | |
599 | ||
600 | ||
601 |