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079d88cc WF |
1 | /* |
2 | * | |
3 | * patch_hdmi.c - routines for HDMI/DisplayPort codecs | |
4 | * | |
5 | * Copyright(c) 2008-2010 Intel Corporation. All rights reserved. | |
6 | * | |
7 | * Authors: | |
8 | * Wu Fengguang <wfg@linux.intel.com> | |
9 | * | |
10 | * Maintained by: | |
11 | * Wu Fengguang <wfg@linux.intel.com> | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the Free | |
15 | * Software Foundation; either version 2 of the License, or (at your option) | |
16 | * any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, but | |
19 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
20 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
21 | * for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software Foundation, | |
25 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
26 | */ | |
27 | ||
28 | ||
29 | struct hdmi_spec { | |
30 | int num_cvts; | |
31 | int num_pins; | |
32 | hda_nid_t cvt[MAX_HDMI_CVTS+1]; /* audio sources */ | |
33 | hda_nid_t pin[MAX_HDMI_PINS+1]; /* audio sinks */ | |
34 | ||
35 | /* | |
36 | * source connection for each pin | |
37 | */ | |
38 | hda_nid_t pin_cvt[MAX_HDMI_PINS+1]; | |
39 | ||
40 | /* | |
41 | * HDMI sink attached to each pin | |
42 | */ | |
43 | struct hdmi_eld sink_eld[MAX_HDMI_PINS]; | |
44 | ||
45 | /* | |
46 | * export one pcm per pipe | |
47 | */ | |
48 | struct hda_pcm pcm_rec[MAX_HDMI_CVTS]; | |
bbbe3390 | 49 | struct hda_pcm_stream codec_pcm_pars[MAX_HDMI_CVTS]; |
079d88cc WF |
50 | |
51 | /* | |
52 | * nvhdmi specific | |
53 | */ | |
54 | struct hda_multi_out multiout; | |
55 | unsigned int codec_type; | |
38faddb1 TI |
56 | |
57 | /* misc flags */ | |
58 | /* PD bit indicates only the update, not the current state */ | |
59 | unsigned int old_pin_detect:1; | |
079d88cc WF |
60 | }; |
61 | ||
62 | ||
63 | struct hdmi_audio_infoframe { | |
64 | u8 type; /* 0x84 */ | |
65 | u8 ver; /* 0x01 */ | |
66 | u8 len; /* 0x0a */ | |
67 | ||
68 | u8 checksum; /* PB0 */ | |
69 | u8 CC02_CT47; /* CC in bits 0:2, CT in 4:7 */ | |
70 | u8 SS01_SF24; | |
71 | u8 CXT04; | |
72 | u8 CA; | |
73 | u8 LFEPBL01_LSV36_DM_INH7; | |
74 | u8 reserved[5]; /* PB6 - PB10 */ | |
75 | }; | |
76 | ||
77 | /* | |
78 | * CEA speaker placement: | |
79 | * | |
80 | * FLH FCH FRH | |
81 | * FLW FL FLC FC FRC FR FRW | |
82 | * | |
83 | * LFE | |
84 | * TC | |
85 | * | |
86 | * RL RLC RC RRC RR | |
87 | * | |
88 | * The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M corresponds to | |
89 | * CEA RL/RR; The SMPTE channel _assignment_ C/LFE is swapped to CEA LFE/FC. | |
90 | */ | |
91 | enum cea_speaker_placement { | |
92 | FL = (1 << 0), /* Front Left */ | |
93 | FC = (1 << 1), /* Front Center */ | |
94 | FR = (1 << 2), /* Front Right */ | |
95 | FLC = (1 << 3), /* Front Left Center */ | |
96 | FRC = (1 << 4), /* Front Right Center */ | |
97 | RL = (1 << 5), /* Rear Left */ | |
98 | RC = (1 << 6), /* Rear Center */ | |
99 | RR = (1 << 7), /* Rear Right */ | |
100 | RLC = (1 << 8), /* Rear Left Center */ | |
101 | RRC = (1 << 9), /* Rear Right Center */ | |
102 | LFE = (1 << 10), /* Low Frequency Effect */ | |
103 | FLW = (1 << 11), /* Front Left Wide */ | |
104 | FRW = (1 << 12), /* Front Right Wide */ | |
105 | FLH = (1 << 13), /* Front Left High */ | |
106 | FCH = (1 << 14), /* Front Center High */ | |
107 | FRH = (1 << 15), /* Front Right High */ | |
108 | TC = (1 << 16), /* Top Center */ | |
109 | }; | |
110 | ||
111 | /* | |
112 | * ELD SA bits in the CEA Speaker Allocation data block | |
113 | */ | |
114 | static int eld_speaker_allocation_bits[] = { | |
115 | [0] = FL | FR, | |
116 | [1] = LFE, | |
117 | [2] = FC, | |
118 | [3] = RL | RR, | |
119 | [4] = RC, | |
120 | [5] = FLC | FRC, | |
121 | [6] = RLC | RRC, | |
122 | /* the following are not defined in ELD yet */ | |
123 | [7] = FLW | FRW, | |
124 | [8] = FLH | FRH, | |
125 | [9] = TC, | |
126 | [10] = FCH, | |
127 | }; | |
128 | ||
129 | struct cea_channel_speaker_allocation { | |
130 | int ca_index; | |
131 | int speakers[8]; | |
132 | ||
133 | /* derived values, just for convenience */ | |
134 | int channels; | |
135 | int spk_mask; | |
136 | }; | |
137 | ||
138 | /* | |
139 | * ALSA sequence is: | |
140 | * | |
141 | * surround40 surround41 surround50 surround51 surround71 | |
142 | * ch0 front left = = = = | |
143 | * ch1 front right = = = = | |
144 | * ch2 rear left = = = = | |
145 | * ch3 rear right = = = = | |
146 | * ch4 LFE center center center | |
147 | * ch5 LFE LFE | |
148 | * ch6 side left | |
149 | * ch7 side right | |
150 | * | |
151 | * surround71 = {FL, FR, RLC, RRC, FC, LFE, RL, RR} | |
152 | */ | |
153 | static int hdmi_channel_mapping[0x32][8] = { | |
154 | /* stereo */ | |
155 | [0x00] = { 0x00, 0x11, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 }, | |
156 | /* 2.1 */ | |
157 | [0x01] = { 0x00, 0x11, 0x22, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 }, | |
158 | /* Dolby Surround */ | |
159 | [0x02] = { 0x00, 0x11, 0x23, 0xf2, 0xf4, 0xf5, 0xf6, 0xf7 }, | |
160 | /* surround40 */ | |
161 | [0x08] = { 0x00, 0x11, 0x24, 0x35, 0xf3, 0xf2, 0xf6, 0xf7 }, | |
162 | /* 4ch */ | |
163 | [0x03] = { 0x00, 0x11, 0x23, 0x32, 0x44, 0xf5, 0xf6, 0xf7 }, | |
164 | /* surround41 */ | |
165 | [0x09] = { 0x00, 0x11, 0x24, 0x34, 0x43, 0xf2, 0xf6, 0xf7 }, | |
166 | /* surround50 */ | |
167 | [0x0a] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0xf2, 0xf6, 0xf7 }, | |
168 | /* surround51 */ | |
169 | [0x0b] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0x52, 0xf6, 0xf7 }, | |
170 | /* 7.1 */ | |
171 | [0x13] = { 0x00, 0x11, 0x26, 0x37, 0x43, 0x52, 0x64, 0x75 }, | |
172 | }; | |
173 | ||
174 | /* | |
175 | * This is an ordered list! | |
176 | * | |
177 | * The preceding ones have better chances to be selected by | |
178 | * hdmi_setup_channel_allocation(). | |
179 | */ | |
180 | static struct cea_channel_speaker_allocation channel_allocations[] = { | |
181 | /* channel: 7 6 5 4 3 2 1 0 */ | |
182 | { .ca_index = 0x00, .speakers = { 0, 0, 0, 0, 0, 0, FR, FL } }, | |
183 | /* 2.1 */ | |
184 | { .ca_index = 0x01, .speakers = { 0, 0, 0, 0, 0, LFE, FR, FL } }, | |
185 | /* Dolby Surround */ | |
186 | { .ca_index = 0x02, .speakers = { 0, 0, 0, 0, FC, 0, FR, FL } }, | |
187 | /* surround40 */ | |
188 | { .ca_index = 0x08, .speakers = { 0, 0, RR, RL, 0, 0, FR, FL } }, | |
189 | /* surround41 */ | |
190 | { .ca_index = 0x09, .speakers = { 0, 0, RR, RL, 0, LFE, FR, FL } }, | |
191 | /* surround50 */ | |
192 | { .ca_index = 0x0a, .speakers = { 0, 0, RR, RL, FC, 0, FR, FL } }, | |
193 | /* surround51 */ | |
194 | { .ca_index = 0x0b, .speakers = { 0, 0, RR, RL, FC, LFE, FR, FL } }, | |
195 | /* 6.1 */ | |
196 | { .ca_index = 0x0f, .speakers = { 0, RC, RR, RL, FC, LFE, FR, FL } }, | |
197 | /* surround71 */ | |
198 | { .ca_index = 0x13, .speakers = { RRC, RLC, RR, RL, FC, LFE, FR, FL } }, | |
199 | ||
200 | { .ca_index = 0x03, .speakers = { 0, 0, 0, 0, FC, LFE, FR, FL } }, | |
201 | { .ca_index = 0x04, .speakers = { 0, 0, 0, RC, 0, 0, FR, FL } }, | |
202 | { .ca_index = 0x05, .speakers = { 0, 0, 0, RC, 0, LFE, FR, FL } }, | |
203 | { .ca_index = 0x06, .speakers = { 0, 0, 0, RC, FC, 0, FR, FL } }, | |
204 | { .ca_index = 0x07, .speakers = { 0, 0, 0, RC, FC, LFE, FR, FL } }, | |
205 | { .ca_index = 0x0c, .speakers = { 0, RC, RR, RL, 0, 0, FR, FL } }, | |
206 | { .ca_index = 0x0d, .speakers = { 0, RC, RR, RL, 0, LFE, FR, FL } }, | |
207 | { .ca_index = 0x0e, .speakers = { 0, RC, RR, RL, FC, 0, FR, FL } }, | |
208 | { .ca_index = 0x10, .speakers = { RRC, RLC, RR, RL, 0, 0, FR, FL } }, | |
209 | { .ca_index = 0x11, .speakers = { RRC, RLC, RR, RL, 0, LFE, FR, FL } }, | |
210 | { .ca_index = 0x12, .speakers = { RRC, RLC, RR, RL, FC, 0, FR, FL } }, | |
211 | { .ca_index = 0x14, .speakers = { FRC, FLC, 0, 0, 0, 0, FR, FL } }, | |
212 | { .ca_index = 0x15, .speakers = { FRC, FLC, 0, 0, 0, LFE, FR, FL } }, | |
213 | { .ca_index = 0x16, .speakers = { FRC, FLC, 0, 0, FC, 0, FR, FL } }, | |
214 | { .ca_index = 0x17, .speakers = { FRC, FLC, 0, 0, FC, LFE, FR, FL } }, | |
215 | { .ca_index = 0x18, .speakers = { FRC, FLC, 0, RC, 0, 0, FR, FL } }, | |
216 | { .ca_index = 0x19, .speakers = { FRC, FLC, 0, RC, 0, LFE, FR, FL } }, | |
217 | { .ca_index = 0x1a, .speakers = { FRC, FLC, 0, RC, FC, 0, FR, FL } }, | |
218 | { .ca_index = 0x1b, .speakers = { FRC, FLC, 0, RC, FC, LFE, FR, FL } }, | |
219 | { .ca_index = 0x1c, .speakers = { FRC, FLC, RR, RL, 0, 0, FR, FL } }, | |
220 | { .ca_index = 0x1d, .speakers = { FRC, FLC, RR, RL, 0, LFE, FR, FL } }, | |
221 | { .ca_index = 0x1e, .speakers = { FRC, FLC, RR, RL, FC, 0, FR, FL } }, | |
222 | { .ca_index = 0x1f, .speakers = { FRC, FLC, RR, RL, FC, LFE, FR, FL } }, | |
223 | { .ca_index = 0x20, .speakers = { 0, FCH, RR, RL, FC, 0, FR, FL } }, | |
224 | { .ca_index = 0x21, .speakers = { 0, FCH, RR, RL, FC, LFE, FR, FL } }, | |
225 | { .ca_index = 0x22, .speakers = { TC, 0, RR, RL, FC, 0, FR, FL } }, | |
226 | { .ca_index = 0x23, .speakers = { TC, 0, RR, RL, FC, LFE, FR, FL } }, | |
227 | { .ca_index = 0x24, .speakers = { FRH, FLH, RR, RL, 0, 0, FR, FL } }, | |
228 | { .ca_index = 0x25, .speakers = { FRH, FLH, RR, RL, 0, LFE, FR, FL } }, | |
229 | { .ca_index = 0x26, .speakers = { FRW, FLW, RR, RL, 0, 0, FR, FL } }, | |
230 | { .ca_index = 0x27, .speakers = { FRW, FLW, RR, RL, 0, LFE, FR, FL } }, | |
231 | { .ca_index = 0x28, .speakers = { TC, RC, RR, RL, FC, 0, FR, FL } }, | |
232 | { .ca_index = 0x29, .speakers = { TC, RC, RR, RL, FC, LFE, FR, FL } }, | |
233 | { .ca_index = 0x2a, .speakers = { FCH, RC, RR, RL, FC, 0, FR, FL } }, | |
234 | { .ca_index = 0x2b, .speakers = { FCH, RC, RR, RL, FC, LFE, FR, FL } }, | |
235 | { .ca_index = 0x2c, .speakers = { TC, FCH, RR, RL, FC, 0, FR, FL } }, | |
236 | { .ca_index = 0x2d, .speakers = { TC, FCH, RR, RL, FC, LFE, FR, FL } }, | |
237 | { .ca_index = 0x2e, .speakers = { FRH, FLH, RR, RL, FC, 0, FR, FL } }, | |
238 | { .ca_index = 0x2f, .speakers = { FRH, FLH, RR, RL, FC, LFE, FR, FL } }, | |
239 | { .ca_index = 0x30, .speakers = { FRW, FLW, RR, RL, FC, 0, FR, FL } }, | |
240 | { .ca_index = 0x31, .speakers = { FRW, FLW, RR, RL, FC, LFE, FR, FL } }, | |
241 | }; | |
242 | ||
243 | ||
244 | /* | |
245 | * HDMI routines | |
246 | */ | |
247 | ||
248 | static int hda_node_index(hda_nid_t *nids, hda_nid_t nid) | |
249 | { | |
250 | int i; | |
251 | ||
252 | for (i = 0; nids[i]; i++) | |
253 | if (nids[i] == nid) | |
254 | return i; | |
255 | ||
256 | snd_printk(KERN_WARNING "HDMI: nid %d not registered\n", nid); | |
257 | return -EINVAL; | |
258 | } | |
259 | ||
260 | static void hdmi_get_show_eld(struct hda_codec *codec, hda_nid_t pin_nid, | |
261 | struct hdmi_eld *eld) | |
262 | { | |
263 | if (!snd_hdmi_get_eld(eld, codec, pin_nid)) | |
264 | snd_hdmi_show_eld(eld); | |
265 | } | |
266 | ||
267 | #ifdef BE_PARANOID | |
268 | static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid, | |
269 | int *packet_index, int *byte_index) | |
270 | { | |
271 | int val; | |
272 | ||
273 | val = snd_hda_codec_read(codec, pin_nid, 0, | |
274 | AC_VERB_GET_HDMI_DIP_INDEX, 0); | |
275 | ||
276 | *packet_index = val >> 5; | |
277 | *byte_index = val & 0x1f; | |
278 | } | |
279 | #endif | |
280 | ||
281 | static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t pin_nid, | |
282 | int packet_index, int byte_index) | |
283 | { | |
284 | int val; | |
285 | ||
286 | val = (packet_index << 5) | (byte_index & 0x1f); | |
287 | ||
288 | snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val); | |
289 | } | |
290 | ||
291 | static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t pin_nid, | |
292 | unsigned char val) | |
293 | { | |
294 | snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val); | |
295 | } | |
296 | ||
297 | static void hdmi_enable_output(struct hda_codec *codec, hda_nid_t pin_nid) | |
298 | { | |
299 | /* Unmute */ | |
300 | if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP) | |
301 | snd_hda_codec_write(codec, pin_nid, 0, | |
302 | AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE); | |
303 | /* Enable pin out */ | |
304 | snd_hda_codec_write(codec, pin_nid, 0, | |
305 | AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT); | |
306 | } | |
307 | ||
308 | static int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t nid) | |
309 | { | |
310 | return 1 + snd_hda_codec_read(codec, nid, 0, | |
311 | AC_VERB_GET_CVT_CHAN_COUNT, 0); | |
312 | } | |
313 | ||
314 | static void hdmi_set_channel_count(struct hda_codec *codec, | |
315 | hda_nid_t nid, int chs) | |
316 | { | |
317 | if (chs != hdmi_get_channel_count(codec, nid)) | |
318 | snd_hda_codec_write(codec, nid, 0, | |
319 | AC_VERB_SET_CVT_CHAN_COUNT, chs - 1); | |
320 | } | |
321 | ||
322 | ||
323 | /* | |
324 | * Channel mapping routines | |
325 | */ | |
326 | ||
327 | /* | |
328 | * Compute derived values in channel_allocations[]. | |
329 | */ | |
330 | static void init_channel_allocations(void) | |
331 | { | |
332 | int i, j; | |
333 | struct cea_channel_speaker_allocation *p; | |
334 | ||
335 | for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) { | |
336 | p = channel_allocations + i; | |
337 | p->channels = 0; | |
338 | p->spk_mask = 0; | |
339 | for (j = 0; j < ARRAY_SIZE(p->speakers); j++) | |
340 | if (p->speakers[j]) { | |
341 | p->channels++; | |
342 | p->spk_mask |= p->speakers[j]; | |
343 | } | |
344 | } | |
345 | } | |
346 | ||
347 | /* | |
348 | * The transformation takes two steps: | |
349 | * | |
350 | * eld->spk_alloc => (eld_speaker_allocation_bits[]) => spk_mask | |
351 | * spk_mask => (channel_allocations[]) => ai->CA | |
352 | * | |
353 | * TODO: it could select the wrong CA from multiple candidates. | |
354 | */ | |
355 | static int hdmi_setup_channel_allocation(struct hda_codec *codec, hda_nid_t nid, | |
356 | struct hdmi_audio_infoframe *ai) | |
357 | { | |
358 | struct hdmi_spec *spec = codec->spec; | |
359 | struct hdmi_eld *eld; | |
360 | int i; | |
361 | int spk_mask = 0; | |
362 | int channels = 1 + (ai->CC02_CT47 & 0x7); | |
363 | char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE]; | |
364 | ||
365 | /* | |
366 | * CA defaults to 0 for basic stereo audio | |
367 | */ | |
368 | if (channels <= 2) | |
369 | return 0; | |
370 | ||
371 | i = hda_node_index(spec->pin_cvt, nid); | |
372 | if (i < 0) | |
373 | return 0; | |
374 | eld = &spec->sink_eld[i]; | |
375 | ||
376 | /* | |
377 | * HDMI sink's ELD info cannot always be retrieved for now, e.g. | |
378 | * in console or for audio devices. Assume the highest speakers | |
379 | * configuration, to _not_ prohibit multi-channel audio playback. | |
380 | */ | |
381 | if (!eld->spk_alloc) | |
382 | eld->spk_alloc = 0xffff; | |
383 | ||
384 | /* | |
385 | * expand ELD's speaker allocation mask | |
386 | * | |
387 | * ELD tells the speaker mask in a compact(paired) form, | |
388 | * expand ELD's notions to match the ones used by Audio InfoFrame. | |
389 | */ | |
390 | for (i = 0; i < ARRAY_SIZE(eld_speaker_allocation_bits); i++) { | |
391 | if (eld->spk_alloc & (1 << i)) | |
392 | spk_mask |= eld_speaker_allocation_bits[i]; | |
393 | } | |
394 | ||
395 | /* search for the first working match in the CA table */ | |
396 | for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) { | |
397 | if (channels == channel_allocations[i].channels && | |
398 | (spk_mask & channel_allocations[i].spk_mask) == | |
399 | channel_allocations[i].spk_mask) { | |
400 | ai->CA = channel_allocations[i].ca_index; | |
401 | break; | |
402 | } | |
403 | } | |
404 | ||
405 | snd_print_channel_allocation(eld->spk_alloc, buf, sizeof(buf)); | |
2abbf439 WF |
406 | snd_printdd("HDMI: select CA 0x%x for %d-channel allocation: %s\n", |
407 | ai->CA, channels, buf); | |
079d88cc WF |
408 | |
409 | return ai->CA; | |
410 | } | |
411 | ||
412 | static void hdmi_debug_channel_mapping(struct hda_codec *codec, | |
413 | hda_nid_t pin_nid) | |
414 | { | |
415 | #ifdef CONFIG_SND_DEBUG_VERBOSE | |
416 | int i; | |
417 | int slot; | |
418 | ||
419 | for (i = 0; i < 8; i++) { | |
420 | slot = snd_hda_codec_read(codec, pin_nid, 0, | |
421 | AC_VERB_GET_HDMI_CHAN_SLOT, i); | |
422 | printk(KERN_DEBUG "HDMI: ASP channel %d => slot %d\n", | |
423 | slot >> 4, slot & 0xf); | |
424 | } | |
425 | #endif | |
426 | } | |
427 | ||
428 | ||
429 | static void hdmi_setup_channel_mapping(struct hda_codec *codec, | |
430 | hda_nid_t pin_nid, | |
431 | struct hdmi_audio_infoframe *ai) | |
432 | { | |
433 | int i; | |
434 | int ca = ai->CA; | |
435 | int err; | |
436 | ||
437 | if (hdmi_channel_mapping[ca][1] == 0) { | |
438 | for (i = 0; i < channel_allocations[ca].channels; i++) | |
439 | hdmi_channel_mapping[ca][i] = i | (i << 4); | |
440 | for (; i < 8; i++) | |
441 | hdmi_channel_mapping[ca][i] = 0xf | (i << 4); | |
442 | } | |
443 | ||
444 | for (i = 0; i < 8; i++) { | |
445 | err = snd_hda_codec_write(codec, pin_nid, 0, | |
446 | AC_VERB_SET_HDMI_CHAN_SLOT, | |
447 | hdmi_channel_mapping[ca][i]); | |
448 | if (err) { | |
2abbf439 WF |
449 | snd_printdd(KERN_NOTICE |
450 | "HDMI: channel mapping failed\n"); | |
079d88cc WF |
451 | break; |
452 | } | |
453 | } | |
454 | ||
455 | hdmi_debug_channel_mapping(codec, pin_nid); | |
456 | } | |
457 | ||
458 | ||
459 | /* | |
460 | * Audio InfoFrame routines | |
461 | */ | |
462 | ||
463 | /* | |
464 | * Enable Audio InfoFrame Transmission | |
465 | */ | |
466 | static void hdmi_start_infoframe_trans(struct hda_codec *codec, | |
467 | hda_nid_t pin_nid) | |
468 | { | |
469 | hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0); | |
470 | snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT, | |
471 | AC_DIPXMIT_BEST); | |
472 | } | |
473 | ||
474 | /* | |
475 | * Disable Audio InfoFrame Transmission | |
476 | */ | |
477 | static void hdmi_stop_infoframe_trans(struct hda_codec *codec, | |
478 | hda_nid_t pin_nid) | |
479 | { | |
480 | hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0); | |
481 | snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT, | |
482 | AC_DIPXMIT_DISABLE); | |
483 | } | |
484 | ||
485 | static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid) | |
486 | { | |
487 | #ifdef CONFIG_SND_DEBUG_VERBOSE | |
488 | int i; | |
489 | int size; | |
490 | ||
491 | size = snd_hdmi_get_eld_size(codec, pin_nid); | |
492 | printk(KERN_DEBUG "HDMI: ELD buf size is %d\n", size); | |
493 | ||
494 | for (i = 0; i < 8; i++) { | |
495 | size = snd_hda_codec_read(codec, pin_nid, 0, | |
496 | AC_VERB_GET_HDMI_DIP_SIZE, i); | |
497 | printk(KERN_DEBUG "HDMI: DIP GP[%d] buf size is %d\n", i, size); | |
498 | } | |
499 | #endif | |
500 | } | |
501 | ||
502 | static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid) | |
503 | { | |
504 | #ifdef BE_PARANOID | |
505 | int i, j; | |
506 | int size; | |
507 | int pi, bi; | |
508 | for (i = 0; i < 8; i++) { | |
509 | size = snd_hda_codec_read(codec, pin_nid, 0, | |
510 | AC_VERB_GET_HDMI_DIP_SIZE, i); | |
511 | if (size == 0) | |
512 | continue; | |
513 | ||
514 | hdmi_set_dip_index(codec, pin_nid, i, 0x0); | |
515 | for (j = 1; j < 1000; j++) { | |
516 | hdmi_write_dip_byte(codec, pin_nid, 0x0); | |
517 | hdmi_get_dip_index(codec, pin_nid, &pi, &bi); | |
518 | if (pi != i) | |
519 | snd_printd(KERN_INFO "dip index %d: %d != %d\n", | |
520 | bi, pi, i); | |
521 | if (bi == 0) /* byte index wrapped around */ | |
522 | break; | |
523 | } | |
524 | snd_printd(KERN_INFO | |
525 | "HDMI: DIP GP[%d] buf reported size=%d, written=%d\n", | |
526 | i, size, j); | |
527 | } | |
528 | #endif | |
529 | } | |
530 | ||
531 | static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *ai) | |
532 | { | |
533 | u8 *bytes = (u8 *)ai; | |
534 | u8 sum = 0; | |
535 | int i; | |
536 | ||
537 | ai->checksum = 0; | |
538 | ||
539 | for (i = 0; i < sizeof(*ai); i++) | |
540 | sum += bytes[i]; | |
541 | ||
542 | ai->checksum = -sum; | |
543 | } | |
544 | ||
545 | static void hdmi_fill_audio_infoframe(struct hda_codec *codec, | |
546 | hda_nid_t pin_nid, | |
547 | struct hdmi_audio_infoframe *ai) | |
548 | { | |
549 | u8 *bytes = (u8 *)ai; | |
550 | int i; | |
551 | ||
552 | hdmi_debug_dip_size(codec, pin_nid); | |
553 | hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */ | |
554 | ||
555 | hdmi_checksum_audio_infoframe(ai); | |
556 | ||
557 | hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0); | |
558 | for (i = 0; i < sizeof(*ai); i++) | |
559 | hdmi_write_dip_byte(codec, pin_nid, bytes[i]); | |
560 | } | |
561 | ||
562 | static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid, | |
563 | struct hdmi_audio_infoframe *ai) | |
564 | { | |
565 | u8 *bytes = (u8 *)ai; | |
566 | u8 val; | |
567 | int i; | |
568 | ||
569 | if (snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_XMIT, 0) | |
570 | != AC_DIPXMIT_BEST) | |
571 | return false; | |
572 | ||
573 | hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0); | |
574 | for (i = 0; i < sizeof(*ai); i++) { | |
575 | val = snd_hda_codec_read(codec, pin_nid, 0, | |
576 | AC_VERB_GET_HDMI_DIP_DATA, 0); | |
577 | if (val != bytes[i]) | |
578 | return false; | |
579 | } | |
580 | ||
581 | return true; | |
582 | } | |
583 | ||
584 | static void hdmi_setup_audio_infoframe(struct hda_codec *codec, hda_nid_t nid, | |
585 | struct snd_pcm_substream *substream) | |
586 | { | |
587 | struct hdmi_spec *spec = codec->spec; | |
588 | hda_nid_t pin_nid; | |
589 | int i; | |
590 | struct hdmi_audio_infoframe ai = { | |
591 | .type = 0x84, | |
592 | .ver = 0x01, | |
593 | .len = 0x0a, | |
594 | .CC02_CT47 = substream->runtime->channels - 1, | |
595 | }; | |
596 | ||
597 | hdmi_setup_channel_allocation(codec, nid, &ai); | |
598 | ||
599 | for (i = 0; i < spec->num_pins; i++) { | |
600 | if (spec->pin_cvt[i] != nid) | |
601 | continue; | |
602 | if (!spec->sink_eld[i].monitor_present) | |
603 | continue; | |
604 | ||
605 | pin_nid = spec->pin[i]; | |
606 | if (!hdmi_infoframe_uptodate(codec, pin_nid, &ai)) { | |
2abbf439 WF |
607 | snd_printdd("hdmi_setup_audio_infoframe: " |
608 | "cvt=%d pin=%d channels=%d\n", | |
609 | nid, pin_nid, | |
610 | substream->runtime->channels); | |
079d88cc WF |
611 | hdmi_setup_channel_mapping(codec, pin_nid, &ai); |
612 | hdmi_stop_infoframe_trans(codec, pin_nid); | |
613 | hdmi_fill_audio_infoframe(codec, pin_nid, &ai); | |
614 | hdmi_start_infoframe_trans(codec, pin_nid); | |
615 | } | |
616 | } | |
617 | } | |
618 | ||
619 | ||
620 | /* | |
621 | * Unsolicited events | |
622 | */ | |
623 | ||
38faddb1 TI |
624 | static void hdmi_present_sense(struct hda_codec *codec, hda_nid_t pin_nid, |
625 | struct hdmi_eld *eld); | |
626 | ||
079d88cc WF |
627 | static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res) |
628 | { | |
629 | struct hdmi_spec *spec = codec->spec; | |
630 | int tag = res >> AC_UNSOL_RES_TAG_SHIFT; | |
631 | int pind = !!(res & AC_UNSOL_RES_PD); | |
632 | int eldv = !!(res & AC_UNSOL_RES_ELDV); | |
633 | int index; | |
634 | ||
635 | printk(KERN_INFO | |
636 | "HDMI hot plug event: Pin=%d Presence_Detect=%d ELD_Valid=%d\n", | |
637 | tag, pind, eldv); | |
638 | ||
639 | index = hda_node_index(spec->pin, tag); | |
640 | if (index < 0) | |
641 | return; | |
642 | ||
38faddb1 TI |
643 | if (spec->old_pin_detect) { |
644 | if (pind) | |
645 | hdmi_present_sense(codec, tag, &spec->sink_eld[index]); | |
646 | pind = spec->sink_eld[index].monitor_present; | |
647 | } | |
648 | ||
079d88cc WF |
649 | spec->sink_eld[index].monitor_present = pind; |
650 | spec->sink_eld[index].eld_valid = eldv; | |
651 | ||
652 | if (pind && eldv) { | |
653 | hdmi_get_show_eld(codec, spec->pin[index], | |
654 | &spec->sink_eld[index]); | |
655 | /* TODO: do real things about ELD */ | |
656 | } | |
657 | } | |
658 | ||
659 | static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res) | |
660 | { | |
661 | int tag = res >> AC_UNSOL_RES_TAG_SHIFT; | |
662 | int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT; | |
663 | int cp_state = !!(res & AC_UNSOL_RES_CP_STATE); | |
664 | int cp_ready = !!(res & AC_UNSOL_RES_CP_READY); | |
665 | ||
666 | printk(KERN_INFO | |
667 | "HDMI CP event: PIN=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n", | |
668 | tag, | |
669 | subtag, | |
670 | cp_state, | |
671 | cp_ready); | |
672 | ||
673 | /* TODO */ | |
674 | if (cp_state) | |
675 | ; | |
676 | if (cp_ready) | |
677 | ; | |
678 | } | |
679 | ||
680 | ||
681 | static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res) | |
682 | { | |
683 | struct hdmi_spec *spec = codec->spec; | |
684 | int tag = res >> AC_UNSOL_RES_TAG_SHIFT; | |
685 | int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT; | |
686 | ||
687 | if (hda_node_index(spec->pin, tag) < 0) { | |
688 | snd_printd(KERN_INFO "Unexpected HDMI event tag 0x%x\n", tag); | |
689 | return; | |
690 | } | |
691 | ||
692 | if (subtag == 0) | |
693 | hdmi_intrinsic_event(codec, res); | |
694 | else | |
695 | hdmi_non_intrinsic_event(codec, res); | |
696 | } | |
697 | ||
698 | /* | |
699 | * Callbacks | |
700 | */ | |
701 | ||
92f10b3f TI |
702 | /* HBR should be Non-PCM, 8 channels */ |
703 | #define is_hbr_format(format) \ | |
704 | ((format & AC_FMT_TYPE_NON_PCM) && (format & AC_FMT_CHAN_MASK) == 7) | |
705 | ||
ea87d1c4 | 706 | static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t nid, |
079d88cc WF |
707 | u32 stream_tag, int format) |
708 | { | |
ea87d1c4 | 709 | struct hdmi_spec *spec = codec->spec; |
ea87d1c4 AH |
710 | int pinctl; |
711 | int new_pinctl = 0; | |
712 | int i; | |
713 | ||
714 | for (i = 0; i < spec->num_pins; i++) { | |
715 | if (spec->pin_cvt[i] != nid) | |
716 | continue; | |
717 | if (!(snd_hda_query_pin_caps(codec, spec->pin[i]) & AC_PINCAP_HBR)) | |
718 | continue; | |
719 | ||
720 | pinctl = snd_hda_codec_read(codec, spec->pin[i], 0, | |
721 | AC_VERB_GET_PIN_WIDGET_CONTROL, 0); | |
722 | ||
723 | new_pinctl = pinctl & ~AC_PINCTL_EPT; | |
92f10b3f | 724 | if (is_hbr_format(format)) |
ea87d1c4 AH |
725 | new_pinctl |= AC_PINCTL_EPT_HBR; |
726 | else | |
727 | new_pinctl |= AC_PINCTL_EPT_NATIVE; | |
728 | ||
729 | snd_printdd("hdmi_setup_stream: " | |
730 | "NID=0x%x, %spinctl=0x%x\n", | |
731 | spec->pin[i], | |
732 | pinctl == new_pinctl ? "" : "new-", | |
733 | new_pinctl); | |
734 | ||
735 | if (pinctl != new_pinctl) | |
736 | snd_hda_codec_write(codec, spec->pin[i], 0, | |
737 | AC_VERB_SET_PIN_WIDGET_CONTROL, | |
738 | new_pinctl); | |
739 | } | |
740 | ||
92f10b3f | 741 | if (is_hbr_format(format) && !new_pinctl) { |
ea87d1c4 AH |
742 | snd_printdd("hdmi_setup_stream: HBR is not supported\n"); |
743 | return -EINVAL; | |
744 | } | |
079d88cc | 745 | |
4f347607 | 746 | snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format); |
ea87d1c4 | 747 | return 0; |
079d88cc WF |
748 | } |
749 | ||
bbbe3390 TI |
750 | /* |
751 | * HDA PCM callbacks | |
752 | */ | |
753 | static int hdmi_pcm_open(struct hda_pcm_stream *hinfo, | |
754 | struct hda_codec *codec, | |
755 | struct snd_pcm_substream *substream) | |
756 | { | |
757 | struct hdmi_spec *spec = codec->spec; | |
758 | struct hdmi_eld *eld; | |
759 | struct hda_pcm_stream *codec_pars; | |
760 | unsigned int idx; | |
761 | ||
762 | for (idx = 0; idx < spec->num_cvts; idx++) | |
763 | if (hinfo->nid == spec->cvt[idx]) | |
764 | break; | |
765 | if (snd_BUG_ON(idx >= spec->num_cvts) || | |
766 | snd_BUG_ON(idx >= spec->num_pins)) | |
767 | return -EINVAL; | |
768 | ||
769 | /* save the PCM info the codec provides */ | |
770 | codec_pars = &spec->codec_pcm_pars[idx]; | |
771 | if (!codec_pars->rates) | |
772 | *codec_pars = *hinfo; | |
773 | ||
774 | eld = &spec->sink_eld[idx]; | |
775 | if (eld->sad_count > 0) { | |
776 | hdmi_eld_update_pcm_info(eld, hinfo, codec_pars); | |
777 | if (hinfo->channels_min > hinfo->channels_max || | |
778 | !hinfo->rates || !hinfo->formats) | |
779 | return -ENODEV; | |
780 | } else { | |
781 | /* fallback to the codec default */ | |
782 | hinfo->channels_min = codec_pars->channels_min; | |
783 | hinfo->channels_max = codec_pars->channels_max; | |
784 | hinfo->rates = codec_pars->rates; | |
785 | hinfo->formats = codec_pars->formats; | |
786 | hinfo->maxbps = codec_pars->maxbps; | |
787 | } | |
788 | return 0; | |
789 | } | |
790 | ||
079d88cc WF |
791 | /* |
792 | * HDA/HDMI auto parsing | |
793 | */ | |
794 | ||
795 | static int hdmi_read_pin_conn(struct hda_codec *codec, hda_nid_t pin_nid) | |
796 | { | |
797 | struct hdmi_spec *spec = codec->spec; | |
798 | hda_nid_t conn_list[HDA_MAX_CONNECTIONS]; | |
799 | int conn_len, curr; | |
800 | int index; | |
801 | ||
802 | if (!(get_wcaps(codec, pin_nid) & AC_WCAP_CONN_LIST)) { | |
803 | snd_printk(KERN_WARNING | |
804 | "HDMI: pin %d wcaps %#x " | |
805 | "does not support connection list\n", | |
806 | pin_nid, get_wcaps(codec, pin_nid)); | |
807 | return -EINVAL; | |
808 | } | |
809 | ||
810 | conn_len = snd_hda_get_connections(codec, pin_nid, conn_list, | |
811 | HDA_MAX_CONNECTIONS); | |
812 | if (conn_len > 1) | |
813 | curr = snd_hda_codec_read(codec, pin_nid, 0, | |
814 | AC_VERB_GET_CONNECT_SEL, 0); | |
815 | else | |
816 | curr = 0; | |
817 | ||
818 | index = hda_node_index(spec->pin, pin_nid); | |
819 | if (index < 0) | |
820 | return -EINVAL; | |
821 | ||
822 | spec->pin_cvt[index] = conn_list[curr]; | |
823 | ||
824 | return 0; | |
825 | } | |
826 | ||
827 | static void hdmi_present_sense(struct hda_codec *codec, hda_nid_t pin_nid, | |
828 | struct hdmi_eld *eld) | |
829 | { | |
830 | int present = snd_hda_pin_sense(codec, pin_nid); | |
831 | ||
832 | eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE); | |
833 | eld->eld_valid = !!(present & AC_PINSENSE_ELDV); | |
834 | ||
835 | if (present & AC_PINSENSE_ELDV) | |
836 | hdmi_get_show_eld(codec, pin_nid, eld); | |
837 | } | |
838 | ||
839 | static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid) | |
840 | { | |
841 | struct hdmi_spec *spec = codec->spec; | |
842 | ||
843 | if (spec->num_pins >= MAX_HDMI_PINS) { | |
844 | snd_printk(KERN_WARNING | |
845 | "HDMI: no space for pin %d\n", pin_nid); | |
3eaead57 | 846 | return -E2BIG; |
079d88cc WF |
847 | } |
848 | ||
849 | hdmi_present_sense(codec, pin_nid, &spec->sink_eld[spec->num_pins]); | |
850 | ||
851 | spec->pin[spec->num_pins] = pin_nid; | |
852 | spec->num_pins++; | |
853 | ||
854 | /* | |
855 | * It is assumed that converter nodes come first in the node list and | |
856 | * hence have been registered and usable now. | |
857 | */ | |
858 | return hdmi_read_pin_conn(codec, pin_nid); | |
859 | } | |
860 | ||
861 | static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t nid) | |
862 | { | |
863 | struct hdmi_spec *spec = codec->spec; | |
864 | ||
865 | if (spec->num_cvts >= MAX_HDMI_CVTS) { | |
866 | snd_printk(KERN_WARNING | |
867 | "HDMI: no space for converter %d\n", nid); | |
3eaead57 | 868 | return -E2BIG; |
079d88cc WF |
869 | } |
870 | ||
871 | spec->cvt[spec->num_cvts] = nid; | |
872 | spec->num_cvts++; | |
873 | ||
874 | return 0; | |
875 | } | |
876 | ||
877 | static int hdmi_parse_codec(struct hda_codec *codec) | |
878 | { | |
879 | hda_nid_t nid; | |
880 | int i, nodes; | |
881 | ||
882 | nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid); | |
883 | if (!nid || nodes < 0) { | |
884 | snd_printk(KERN_WARNING "HDMI: failed to get afg sub nodes\n"); | |
885 | return -EINVAL; | |
886 | } | |
887 | ||
888 | for (i = 0; i < nodes; i++, nid++) { | |
889 | unsigned int caps; | |
890 | unsigned int type; | |
891 | ||
892 | caps = snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP); | |
893 | type = get_wcaps_type(caps); | |
894 | ||
895 | if (!(caps & AC_WCAP_DIGITAL)) | |
896 | continue; | |
897 | ||
898 | switch (type) { | |
899 | case AC_WID_AUD_OUT: | |
3eaead57 | 900 | hdmi_add_cvt(codec, nid); |
079d88cc WF |
901 | break; |
902 | case AC_WID_PIN: | |
903 | caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP); | |
904 | if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP))) | |
905 | continue; | |
3eaead57 | 906 | hdmi_add_pin(codec, nid); |
079d88cc WF |
907 | break; |
908 | } | |
909 | } | |
910 | ||
911 | /* | |
912 | * G45/IbexPeak don't support EPSS: the unsolicited pin hot plug event | |
913 | * can be lost and presence sense verb will become inaccurate if the | |
914 | * HDA link is powered off at hot plug or hw initialization time. | |
915 | */ | |
916 | #ifdef CONFIG_SND_HDA_POWER_SAVE | |
917 | if (!(snd_hda_param_read(codec, codec->afg, AC_PAR_POWER_STATE) & | |
918 | AC_PWRST_EPSS)) | |
919 | codec->bus->power_keep_link_on = 1; | |
920 | #endif | |
921 | ||
922 | return 0; | |
923 | } | |
924 |