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09184118 JS |
1 | /* |
2 | * ALSA SoC codec for HDMI encoder drivers | |
3 | * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/ | |
4 | * Author: Jyri Sarha <jsarha@ti.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * version 2 as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | */ | |
15 | #include <linux/module.h> | |
16 | #include <linux/string.h> | |
17 | #include <sound/core.h> | |
18 | #include <sound/pcm.h> | |
19 | #include <sound/pcm_params.h> | |
20 | #include <sound/soc.h> | |
cd6111b2 | 21 | #include <sound/tlv.h> |
09184118 JS |
22 | #include <sound/pcm_drm_eld.h> |
23 | #include <sound/hdmi-codec.h> | |
24 | #include <sound/pcm_iec958.h> | |
25 | ||
26 | #include <drm/drm_crtc.h> /* This is only to get MAX_ELD_BYTES */ | |
27 | ||
cd6111b2 AP |
28 | #define HDMI_CODEC_CHMAP_IDX_UNKNOWN -1 |
29 | ||
30 | struct hdmi_codec_channel_map_table { | |
31 | unsigned char map; /* ALSA API channel map position */ | |
32 | unsigned long spk_mask; /* speaker position bit mask */ | |
33 | }; | |
34 | ||
35 | /* | |
36 | * CEA speaker placement for HDMI 1.4: | |
37 | * | |
38 | * FL FLC FC FRC FR FRW | |
39 | * | |
40 | * LFE | |
41 | * | |
42 | * RL RLC RC RRC RR | |
43 | * | |
44 | * Speaker placement has to be extended to support HDMI 2.0 | |
45 | */ | |
46 | enum hdmi_codec_cea_spk_placement { | |
47 | FL = BIT(0), /* Front Left */ | |
48 | FC = BIT(1), /* Front Center */ | |
49 | FR = BIT(2), /* Front Right */ | |
50 | FLC = BIT(3), /* Front Left Center */ | |
51 | FRC = BIT(4), /* Front Right Center */ | |
52 | RL = BIT(5), /* Rear Left */ | |
53 | RC = BIT(6), /* Rear Center */ | |
54 | RR = BIT(7), /* Rear Right */ | |
55 | RLC = BIT(8), /* Rear Left Center */ | |
56 | RRC = BIT(9), /* Rear Right Center */ | |
57 | LFE = BIT(10), /* Low Frequency Effect */ | |
58 | }; | |
59 | ||
60 | /* | |
61 | * cea Speaker allocation structure | |
62 | */ | |
63 | struct hdmi_codec_cea_spk_alloc { | |
64 | const int ca_id; | |
65 | unsigned int n_ch; | |
66 | unsigned long mask; | |
67 | }; | |
68 | ||
69 | /* Channel maps stereo HDMI */ | |
3013c75f | 70 | static const struct snd_pcm_chmap_elem hdmi_codec_stereo_chmaps[] = { |
cd6111b2 AP |
71 | { .channels = 2, |
72 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, | |
73 | { } | |
74 | }; | |
75 | ||
76 | /* Channel maps for multi-channel playbacks, up to 8 n_ch */ | |
3013c75f | 77 | static const struct snd_pcm_chmap_elem hdmi_codec_8ch_chmaps[] = { |
cd6111b2 AP |
78 | { .channels = 2, /* CA_ID 0x00 */ |
79 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, | |
80 | { .channels = 4, /* CA_ID 0x01 */ | |
81 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
82 | SNDRV_CHMAP_NA } }, | |
83 | { .channels = 4, /* CA_ID 0x02 */ | |
84 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
85 | SNDRV_CHMAP_FC } }, | |
86 | { .channels = 4, /* CA_ID 0x03 */ | |
87 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
88 | SNDRV_CHMAP_FC } }, | |
89 | { .channels = 6, /* CA_ID 0x04 */ | |
90 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
91 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, | |
92 | { .channels = 6, /* CA_ID 0x05 */ | |
93 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
94 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, | |
95 | { .channels = 6, /* CA_ID 0x06 */ | |
96 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
97 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, | |
98 | { .channels = 6, /* CA_ID 0x07 */ | |
99 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
100 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, | |
101 | { .channels = 6, /* CA_ID 0x08 */ | |
102 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
103 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, | |
104 | { .channels = 6, /* CA_ID 0x09 */ | |
105 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
106 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, | |
107 | { .channels = 6, /* CA_ID 0x0A */ | |
108 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
109 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, | |
110 | { .channels = 6, /* CA_ID 0x0B */ | |
111 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
112 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, | |
113 | { .channels = 8, /* CA_ID 0x0C */ | |
114 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
115 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, | |
116 | SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, | |
117 | { .channels = 8, /* CA_ID 0x0D */ | |
118 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
119 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, | |
120 | SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, | |
121 | { .channels = 8, /* CA_ID 0x0E */ | |
122 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
123 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, | |
124 | SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, | |
125 | { .channels = 8, /* CA_ID 0x0F */ | |
126 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
127 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, | |
128 | SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, | |
129 | { .channels = 8, /* CA_ID 0x10 */ | |
130 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
131 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, | |
132 | SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, | |
133 | { .channels = 8, /* CA_ID 0x11 */ | |
134 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
135 | SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, | |
136 | SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, | |
137 | { .channels = 8, /* CA_ID 0x12 */ | |
138 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
139 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, | |
140 | SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, | |
141 | { .channels = 8, /* CA_ID 0x13 */ | |
142 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
143 | SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, | |
144 | SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, | |
145 | { .channels = 8, /* CA_ID 0x14 */ | |
146 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
147 | SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, | |
148 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, | |
149 | { .channels = 8, /* CA_ID 0x15 */ | |
150 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
151 | SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, | |
152 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, | |
153 | { .channels = 8, /* CA_ID 0x16 */ | |
154 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
155 | SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, | |
156 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, | |
157 | { .channels = 8, /* CA_ID 0x17 */ | |
158 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
159 | SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, | |
160 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, | |
161 | { .channels = 8, /* CA_ID 0x18 */ | |
162 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
163 | SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, | |
164 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, | |
165 | { .channels = 8, /* CA_ID 0x19 */ | |
166 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
167 | SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, | |
168 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, | |
169 | { .channels = 8, /* CA_ID 0x1A */ | |
170 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
171 | SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, | |
172 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, | |
173 | { .channels = 8, /* CA_ID 0x1B */ | |
174 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
175 | SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, | |
176 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, | |
177 | { .channels = 8, /* CA_ID 0x1C */ | |
178 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
179 | SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, | |
180 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, | |
181 | { .channels = 8, /* CA_ID 0x1D */ | |
182 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
183 | SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, | |
184 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, | |
185 | { .channels = 8, /* CA_ID 0x1E */ | |
186 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, | |
187 | SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, | |
188 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, | |
189 | { .channels = 8, /* CA_ID 0x1F */ | |
190 | .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, | |
191 | SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, | |
192 | SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, | |
193 | { } | |
194 | }; | |
195 | ||
196 | /* | |
197 | * hdmi_codec_channel_alloc: speaker configuration available for CEA | |
198 | * | |
199 | * This is an ordered list that must match with hdmi_codec_8ch_chmaps struct | |
200 | * The preceding ones have better chances to be selected by | |
201 | * hdmi_codec_get_ch_alloc_table_idx(). | |
202 | */ | |
203 | static const struct hdmi_codec_cea_spk_alloc hdmi_codec_channel_alloc[] = { | |
204 | { .ca_id = 0x00, .n_ch = 2, | |
205 | .mask = FL | FR}, | |
206 | /* 2.1 */ | |
207 | { .ca_id = 0x01, .n_ch = 4, | |
208 | .mask = FL | FR | LFE}, | |
209 | /* Dolby Surround */ | |
210 | { .ca_id = 0x02, .n_ch = 4, | |
211 | .mask = FL | FR | FC }, | |
212 | /* surround51 */ | |
213 | { .ca_id = 0x0b, .n_ch = 6, | |
214 | .mask = FL | FR | LFE | FC | RL | RR}, | |
215 | /* surround40 */ | |
216 | { .ca_id = 0x08, .n_ch = 6, | |
217 | .mask = FL | FR | RL | RR }, | |
218 | /* surround41 */ | |
219 | { .ca_id = 0x09, .n_ch = 6, | |
220 | .mask = FL | FR | LFE | RL | RR }, | |
221 | /* surround50 */ | |
222 | { .ca_id = 0x0a, .n_ch = 6, | |
223 | .mask = FL | FR | FC | RL | RR }, | |
224 | /* 6.1 */ | |
225 | { .ca_id = 0x0f, .n_ch = 8, | |
226 | .mask = FL | FR | LFE | FC | RL | RR | RC }, | |
227 | /* surround71 */ | |
228 | { .ca_id = 0x13, .n_ch = 8, | |
229 | .mask = FL | FR | LFE | FC | RL | RR | RLC | RRC }, | |
230 | /* others */ | |
231 | { .ca_id = 0x03, .n_ch = 8, | |
232 | .mask = FL | FR | LFE | FC }, | |
233 | { .ca_id = 0x04, .n_ch = 8, | |
234 | .mask = FL | FR | RC}, | |
235 | { .ca_id = 0x05, .n_ch = 8, | |
236 | .mask = FL | FR | LFE | RC }, | |
237 | { .ca_id = 0x06, .n_ch = 8, | |
238 | .mask = FL | FR | FC | RC }, | |
239 | { .ca_id = 0x07, .n_ch = 8, | |
240 | .mask = FL | FR | LFE | FC | RC }, | |
241 | { .ca_id = 0x0c, .n_ch = 8, | |
242 | .mask = FL | FR | RC | RL | RR }, | |
243 | { .ca_id = 0x0d, .n_ch = 8, | |
244 | .mask = FL | FR | LFE | RL | RR | RC }, | |
245 | { .ca_id = 0x0e, .n_ch = 8, | |
246 | .mask = FL | FR | FC | RL | RR | RC }, | |
247 | { .ca_id = 0x10, .n_ch = 8, | |
248 | .mask = FL | FR | RL | RR | RLC | RRC }, | |
249 | { .ca_id = 0x11, .n_ch = 8, | |
250 | .mask = FL | FR | LFE | RL | RR | RLC | RRC }, | |
251 | { .ca_id = 0x12, .n_ch = 8, | |
252 | .mask = FL | FR | FC | RL | RR | RLC | RRC }, | |
253 | { .ca_id = 0x14, .n_ch = 8, | |
254 | .mask = FL | FR | FLC | FRC }, | |
255 | { .ca_id = 0x15, .n_ch = 8, | |
256 | .mask = FL | FR | LFE | FLC | FRC }, | |
257 | { .ca_id = 0x16, .n_ch = 8, | |
258 | .mask = FL | FR | FC | FLC | FRC }, | |
259 | { .ca_id = 0x17, .n_ch = 8, | |
260 | .mask = FL | FR | LFE | FC | FLC | FRC }, | |
261 | { .ca_id = 0x18, .n_ch = 8, | |
262 | .mask = FL | FR | RC | FLC | FRC }, | |
263 | { .ca_id = 0x19, .n_ch = 8, | |
264 | .mask = FL | FR | LFE | RC | FLC | FRC }, | |
265 | { .ca_id = 0x1a, .n_ch = 8, | |
266 | .mask = FL | FR | RC | FC | FLC | FRC }, | |
267 | { .ca_id = 0x1b, .n_ch = 8, | |
268 | .mask = FL | FR | LFE | RC | FC | FLC | FRC }, | |
269 | { .ca_id = 0x1c, .n_ch = 8, | |
270 | .mask = FL | FR | RL | RR | FLC | FRC }, | |
271 | { .ca_id = 0x1d, .n_ch = 8, | |
272 | .mask = FL | FR | LFE | RL | RR | FLC | FRC }, | |
273 | { .ca_id = 0x1e, .n_ch = 8, | |
274 | .mask = FL | FR | FC | RL | RR | FLC | FRC }, | |
275 | { .ca_id = 0x1f, .n_ch = 8, | |
276 | .mask = FL | FR | LFE | FC | RL | RR | FLC | FRC }, | |
277 | }; | |
278 | ||
09184118 JS |
279 | struct hdmi_codec_priv { |
280 | struct hdmi_codec_pdata hcd; | |
281 | struct snd_soc_dai_driver *daidrv; | |
282 | struct hdmi_codec_daifmt daifmt[2]; | |
283 | struct mutex current_stream_lock; | |
284 | struct snd_pcm_substream *current_stream; | |
09184118 | 285 | uint8_t eld[MAX_ELD_BYTES]; |
cd6111b2 AP |
286 | struct snd_pcm_chmap *chmap_info; |
287 | unsigned int chmap_idx; | |
09184118 JS |
288 | }; |
289 | ||
290 | static const struct snd_soc_dapm_widget hdmi_widgets[] = { | |
291 | SND_SOC_DAPM_OUTPUT("TX"), | |
292 | }; | |
293 | ||
294 | static const struct snd_soc_dapm_route hdmi_routes[] = { | |
295 | { "TX", NULL, "Playback" }, | |
296 | }; | |
297 | ||
298 | enum { | |
299 | DAI_ID_I2S = 0, | |
300 | DAI_ID_SPDIF, | |
301 | }; | |
302 | ||
81151cfb PZ |
303 | static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol, |
304 | struct snd_ctl_elem_info *uinfo) | |
305 | { | |
81151cfb | 306 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; |
0607aa3c | 307 | uinfo->count = FIELD_SIZEOF(struct hdmi_codec_priv, eld); |
81151cfb PZ |
308 | |
309 | return 0; | |
310 | } | |
311 | ||
312 | static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol, | |
313 | struct snd_ctl_elem_value *ucontrol) | |
314 | { | |
315 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
316 | struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); | |
317 | ||
81151cfb | 318 | memcpy(ucontrol->value.bytes.data, hcp->eld, sizeof(hcp->eld)); |
81151cfb PZ |
319 | |
320 | return 0; | |
321 | } | |
322 | ||
cd6111b2 AP |
323 | static unsigned long hdmi_codec_spk_mask_from_alloc(int spk_alloc) |
324 | { | |
325 | int i; | |
1d6463a3 | 326 | static const unsigned long hdmi_codec_eld_spk_alloc_bits[] = { |
cd6111b2 AP |
327 | [0] = FL | FR, [1] = LFE, [2] = FC, [3] = RL | RR, |
328 | [4] = RC, [5] = FLC | FRC, [6] = RLC | RRC, | |
329 | }; | |
330 | unsigned long spk_mask = 0; | |
331 | ||
332 | for (i = 0; i < ARRAY_SIZE(hdmi_codec_eld_spk_alloc_bits); i++) { | |
333 | if (spk_alloc & (1 << i)) | |
334 | spk_mask |= hdmi_codec_eld_spk_alloc_bits[i]; | |
335 | } | |
336 | ||
337 | return spk_mask; | |
338 | } | |
339 | ||
3013c75f | 340 | static void hdmi_codec_eld_chmap(struct hdmi_codec_priv *hcp) |
cd6111b2 AP |
341 | { |
342 | u8 spk_alloc; | |
343 | unsigned long spk_mask; | |
344 | ||
345 | spk_alloc = drm_eld_get_spk_alloc(hcp->eld); | |
346 | spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); | |
347 | ||
348 | /* Detect if only stereo supported, else return 8 channels mappings */ | |
349 | if ((spk_mask & ~(FL | FR)) && hcp->chmap_info->max_channels > 2) | |
350 | hcp->chmap_info->chmap = hdmi_codec_8ch_chmaps; | |
351 | else | |
352 | hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; | |
353 | } | |
354 | ||
355 | static int hdmi_codec_get_ch_alloc_table_idx(struct hdmi_codec_priv *hcp, | |
356 | unsigned char channels) | |
357 | { | |
358 | int i; | |
359 | u8 spk_alloc; | |
360 | unsigned long spk_mask; | |
361 | const struct hdmi_codec_cea_spk_alloc *cap = hdmi_codec_channel_alloc; | |
362 | ||
363 | spk_alloc = drm_eld_get_spk_alloc(hcp->eld); | |
364 | spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); | |
365 | ||
366 | for (i = 0; i < ARRAY_SIZE(hdmi_codec_channel_alloc); i++, cap++) { | |
367 | /* If spk_alloc == 0, HDMI is unplugged return stereo config*/ | |
368 | if (!spk_alloc && cap->ca_id == 0) | |
369 | return i; | |
370 | if (cap->n_ch != channels) | |
371 | continue; | |
372 | if (!(cap->mask == (spk_mask & cap->mask))) | |
373 | continue; | |
374 | return i; | |
375 | } | |
376 | ||
377 | return -EINVAL; | |
378 | } | |
379 | static int hdmi_codec_chmap_ctl_get(struct snd_kcontrol *kcontrol, | |
380 | struct snd_ctl_elem_value *ucontrol) | |
381 | { | |
382 | unsigned const char *map; | |
383 | unsigned int i; | |
384 | struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); | |
385 | struct hdmi_codec_priv *hcp = info->private_data; | |
386 | ||
387 | map = info->chmap[hcp->chmap_idx].map; | |
388 | ||
389 | for (i = 0; i < info->max_channels; i++) { | |
390 | if (hcp->chmap_idx == HDMI_CODEC_CHMAP_IDX_UNKNOWN) | |
391 | ucontrol->value.integer.value[i] = 0; | |
392 | else | |
393 | ucontrol->value.integer.value[i] = map[i]; | |
394 | } | |
395 | ||
396 | return 0; | |
397 | } | |
398 | ||
09184118 JS |
399 | static int hdmi_codec_new_stream(struct snd_pcm_substream *substream, |
400 | struct snd_soc_dai *dai) | |
401 | { | |
402 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); | |
403 | int ret = 0; | |
404 | ||
405 | mutex_lock(&hcp->current_stream_lock); | |
406 | if (!hcp->current_stream) { | |
407 | hcp->current_stream = substream; | |
408 | } else if (hcp->current_stream != substream) { | |
409 | dev_err(dai->dev, "Only one simultaneous stream supported!\n"); | |
410 | ret = -EINVAL; | |
411 | } | |
412 | mutex_unlock(&hcp->current_stream_lock); | |
413 | ||
414 | return ret; | |
415 | } | |
416 | ||
417 | static int hdmi_codec_startup(struct snd_pcm_substream *substream, | |
418 | struct snd_soc_dai *dai) | |
419 | { | |
420 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); | |
421 | int ret = 0; | |
422 | ||
423 | dev_dbg(dai->dev, "%s()\n", __func__); | |
424 | ||
425 | ret = hdmi_codec_new_stream(substream, dai); | |
426 | if (ret) | |
427 | return ret; | |
428 | ||
429 | if (hcp->hcd.ops->audio_startup) { | |
efc9194b | 430 | ret = hcp->hcd.ops->audio_startup(dai->dev->parent, hcp->hcd.data); |
09184118 JS |
431 | if (ret) { |
432 | mutex_lock(&hcp->current_stream_lock); | |
433 | hcp->current_stream = NULL; | |
434 | mutex_unlock(&hcp->current_stream_lock); | |
435 | return ret; | |
436 | } | |
437 | } | |
438 | ||
439 | if (hcp->hcd.ops->get_eld) { | |
efc9194b KM |
440 | ret = hcp->hcd.ops->get_eld(dai->dev->parent, hcp->hcd.data, |
441 | hcp->eld, sizeof(hcp->eld)); | |
09184118 JS |
442 | |
443 | if (!ret) { | |
444 | ret = snd_pcm_hw_constraint_eld(substream->runtime, | |
445 | hcp->eld); | |
446 | if (ret) | |
447 | return ret; | |
448 | } | |
cd6111b2 AP |
449 | /* Select chmap supported */ |
450 | hdmi_codec_eld_chmap(hcp); | |
09184118 JS |
451 | } |
452 | return 0; | |
453 | } | |
454 | ||
455 | static void hdmi_codec_shutdown(struct snd_pcm_substream *substream, | |
456 | struct snd_soc_dai *dai) | |
457 | { | |
458 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); | |
459 | ||
460 | dev_dbg(dai->dev, "%s()\n", __func__); | |
461 | ||
462 | WARN_ON(hcp->current_stream != substream); | |
463 | ||
cd6111b2 | 464 | hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; |
efc9194b | 465 | hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data); |
09184118 JS |
466 | |
467 | mutex_lock(&hcp->current_stream_lock); | |
468 | hcp->current_stream = NULL; | |
469 | mutex_unlock(&hcp->current_stream_lock); | |
470 | } | |
471 | ||
472 | static int hdmi_codec_hw_params(struct snd_pcm_substream *substream, | |
473 | struct snd_pcm_hw_params *params, | |
474 | struct snd_soc_dai *dai) | |
475 | { | |
476 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); | |
477 | struct hdmi_codec_params hp = { | |
478 | .iec = { | |
479 | .status = { 0 }, | |
480 | .subcode = { 0 }, | |
481 | .pad = 0, | |
482 | .dig_subframe = { 0 }, | |
483 | } | |
484 | }; | |
cd6111b2 | 485 | int ret, idx; |
09184118 JS |
486 | |
487 | dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, | |
488 | params_width(params), params_rate(params), | |
489 | params_channels(params)); | |
490 | ||
491 | if (params_width(params) > 24) | |
492 | params->msbits = 24; | |
493 | ||
494 | ret = snd_pcm_create_iec958_consumer_hw_params(params, hp.iec.status, | |
495 | sizeof(hp.iec.status)); | |
496 | if (ret < 0) { | |
497 | dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", | |
498 | ret); | |
499 | return ret; | |
500 | } | |
501 | ||
502 | ret = hdmi_codec_new_stream(substream, dai); | |
503 | if (ret) | |
504 | return ret; | |
505 | ||
506 | hdmi_audio_infoframe_init(&hp.cea); | |
507 | hp.cea.channels = params_channels(params); | |
508 | hp.cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM; | |
509 | hp.cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM; | |
510 | hp.cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM; | |
511 | ||
cd6111b2 AP |
512 | /* Select a channel allocation that matches with ELD and pcm channels */ |
513 | idx = hdmi_codec_get_ch_alloc_table_idx(hcp, hp.cea.channels); | |
514 | if (idx < 0) { | |
515 | dev_err(dai->dev, "Not able to map channels to speakers (%d)\n", | |
516 | idx); | |
517 | hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; | |
518 | return idx; | |
519 | } | |
520 | hp.cea.channel_allocation = hdmi_codec_channel_alloc[idx].ca_id; | |
521 | hcp->chmap_idx = hdmi_codec_channel_alloc[idx].ca_id; | |
522 | ||
09184118 JS |
523 | hp.sample_width = params_width(params); |
524 | hp.sample_rate = params_rate(params); | |
525 | hp.channels = params_channels(params); | |
526 | ||
efc9194b KM |
527 | return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data, |
528 | &hcp->daifmt[dai->id], &hp); | |
09184118 JS |
529 | } |
530 | ||
531 | static int hdmi_codec_set_fmt(struct snd_soc_dai *dai, | |
532 | unsigned int fmt) | |
533 | { | |
534 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); | |
535 | struct hdmi_codec_daifmt cf = { 0 }; | |
536 | int ret = 0; | |
537 | ||
538 | dev_dbg(dai->dev, "%s()\n", __func__); | |
539 | ||
540 | if (dai->id == DAI_ID_SPDIF) { | |
541 | cf.fmt = HDMI_SPDIF; | |
542 | } else { | |
543 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
544 | case SND_SOC_DAIFMT_CBM_CFM: | |
545 | cf.bit_clk_master = 1; | |
546 | cf.frame_clk_master = 1; | |
547 | break; | |
548 | case SND_SOC_DAIFMT_CBS_CFM: | |
549 | cf.frame_clk_master = 1; | |
550 | break; | |
551 | case SND_SOC_DAIFMT_CBM_CFS: | |
552 | cf.bit_clk_master = 1; | |
553 | break; | |
554 | case SND_SOC_DAIFMT_CBS_CFS: | |
555 | break; | |
556 | default: | |
557 | return -EINVAL; | |
558 | } | |
559 | ||
560 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
561 | case SND_SOC_DAIFMT_NB_NF: | |
562 | break; | |
563 | case SND_SOC_DAIFMT_NB_IF: | |
564 | cf.frame_clk_inv = 1; | |
565 | break; | |
566 | case SND_SOC_DAIFMT_IB_NF: | |
567 | cf.bit_clk_inv = 1; | |
568 | break; | |
569 | case SND_SOC_DAIFMT_IB_IF: | |
570 | cf.frame_clk_inv = 1; | |
571 | cf.bit_clk_inv = 1; | |
572 | break; | |
573 | } | |
574 | ||
575 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
576 | case SND_SOC_DAIFMT_I2S: | |
577 | cf.fmt = HDMI_I2S; | |
578 | break; | |
579 | case SND_SOC_DAIFMT_DSP_A: | |
580 | cf.fmt = HDMI_DSP_A; | |
581 | break; | |
582 | case SND_SOC_DAIFMT_DSP_B: | |
583 | cf.fmt = HDMI_DSP_B; | |
584 | break; | |
585 | case SND_SOC_DAIFMT_RIGHT_J: | |
586 | cf.fmt = HDMI_RIGHT_J; | |
587 | break; | |
588 | case SND_SOC_DAIFMT_LEFT_J: | |
589 | cf.fmt = HDMI_LEFT_J; | |
590 | break; | |
591 | case SND_SOC_DAIFMT_AC97: | |
592 | cf.fmt = HDMI_AC97; | |
593 | break; | |
594 | default: | |
595 | dev_err(dai->dev, "Invalid DAI interface format\n"); | |
596 | return -EINVAL; | |
597 | } | |
598 | } | |
599 | ||
600 | hcp->daifmt[dai->id] = cf; | |
601 | ||
602 | return ret; | |
603 | } | |
604 | ||
605 | static int hdmi_codec_digital_mute(struct snd_soc_dai *dai, int mute) | |
606 | { | |
607 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); | |
608 | ||
609 | dev_dbg(dai->dev, "%s()\n", __func__); | |
610 | ||
611 | if (hcp->hcd.ops->digital_mute) | |
efc9194b KM |
612 | return hcp->hcd.ops->digital_mute(dai->dev->parent, |
613 | hcp->hcd.data, mute); | |
09184118 JS |
614 | |
615 | return 0; | |
616 | } | |
617 | ||
618 | static const struct snd_soc_dai_ops hdmi_dai_ops = { | |
619 | .startup = hdmi_codec_startup, | |
620 | .shutdown = hdmi_codec_shutdown, | |
621 | .hw_params = hdmi_codec_hw_params, | |
622 | .set_fmt = hdmi_codec_set_fmt, | |
623 | .digital_mute = hdmi_codec_digital_mute, | |
624 | }; | |
625 | ||
626 | ||
627 | #define HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ | |
628 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ | |
629 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\ | |
630 | SNDRV_PCM_RATE_192000) | |
631 | ||
632 | #define SPDIF_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |\ | |
633 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE |\ | |
634 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |\ | |
635 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE) | |
636 | ||
637 | /* | |
638 | * This list is only for formats allowed on the I2S bus. So there is | |
639 | * some formats listed that are not supported by HDMI interface. For | |
640 | * instance allowing the 32-bit formats enables 24-precision with CPU | |
641 | * DAIs that do not support 24-bit formats. If the extra formats cause | |
642 | * problems, we should add the video side driver an option to disable | |
643 | * them. | |
644 | */ | |
645 | #define I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |\ | |
646 | SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE |\ | |
647 | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |\ | |
648 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE |\ | |
649 | SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE) | |
650 | ||
cd6111b2 AP |
651 | static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd, |
652 | struct snd_soc_dai *dai) | |
653 | { | |
654 | struct snd_soc_dai_driver *drv = dai->driver; | |
655 | struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); | |
ecbb1b8d KM |
656 | struct snd_kcontrol *kctl; |
657 | struct snd_kcontrol_new hdmi_eld_ctl = { | |
658 | .access = SNDRV_CTL_ELEM_ACCESS_READ | | |
659 | SNDRV_CTL_ELEM_ACCESS_VOLATILE, | |
660 | .iface = SNDRV_CTL_ELEM_IFACE_PCM, | |
661 | .name = "ELD", | |
662 | .info = hdmi_eld_ctl_info, | |
663 | .get = hdmi_eld_ctl_get, | |
664 | .device = rtd->pcm->device, | |
665 | }; | |
cd6111b2 AP |
666 | int ret; |
667 | ||
668 | dev_dbg(dai->dev, "%s()\n", __func__); | |
669 | ||
670 | ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK, | |
671 | NULL, drv->playback.channels_max, 0, | |
672 | &hcp->chmap_info); | |
673 | if (ret < 0) | |
674 | return ret; | |
675 | ||
676 | /* override handlers */ | |
677 | hcp->chmap_info->private_data = hcp; | |
678 | hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get; | |
679 | ||
680 | /* default chmap supported is stereo */ | |
681 | hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; | |
682 | hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; | |
683 | ||
ecbb1b8d KM |
684 | /* add ELD ctl with the device number corresponding to the PCM stream */ |
685 | kctl = snd_ctl_new1(&hdmi_eld_ctl, dai->component); | |
686 | if (!kctl) | |
687 | return -ENOMEM; | |
688 | ||
689 | return snd_ctl_add(rtd->card->snd_card, kctl); | |
cd6111b2 AP |
690 | } |
691 | ||
6e37f933 | 692 | static const struct snd_soc_dai_driver hdmi_i2s_dai = { |
24069b58 | 693 | .name = "i2s-hifi", |
09184118 JS |
694 | .id = DAI_ID_I2S, |
695 | .playback = { | |
943fa022 | 696 | .stream_name = "I2S Playback", |
09184118 JS |
697 | .channels_min = 2, |
698 | .channels_max = 8, | |
699 | .rates = HDMI_RATES, | |
700 | .formats = I2S_FORMATS, | |
701 | .sig_bits = 24, | |
702 | }, | |
703 | .ops = &hdmi_dai_ops, | |
cd6111b2 | 704 | .pcm_new = hdmi_codec_pcm_new, |
09184118 JS |
705 | }; |
706 | ||
707 | static const struct snd_soc_dai_driver hdmi_spdif_dai = { | |
24069b58 | 708 | .name = "spdif-hifi", |
09184118 JS |
709 | .id = DAI_ID_SPDIF, |
710 | .playback = { | |
943fa022 | 711 | .stream_name = "SPDIF Playback", |
09184118 JS |
712 | .channels_min = 2, |
713 | .channels_max = 2, | |
714 | .rates = HDMI_RATES, | |
715 | .formats = SPDIF_FORMATS, | |
716 | }, | |
717 | .ops = &hdmi_dai_ops, | |
cd6111b2 | 718 | .pcm_new = hdmi_codec_pcm_new, |
09184118 JS |
719 | }; |
720 | ||
96203fb4 KM |
721 | static int hdmi_of_xlate_dai_id(struct snd_soc_component *component, |
722 | struct device_node *endpoint) | |
723 | { | |
724 | struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); | |
725 | int ret = -ENOTSUPP; /* see snd_soc_get_dai_id() */ | |
726 | ||
727 | if (hcp->hcd.ops->get_dai_id) | |
728 | ret = hcp->hcd.ops->get_dai_id(component, endpoint); | |
729 | ||
730 | return ret; | |
731 | } | |
732 | ||
d20aa608 KM |
733 | static const struct snd_soc_component_driver hdmi_driver = { |
734 | .dapm_widgets = hdmi_widgets, | |
735 | .num_dapm_widgets = ARRAY_SIZE(hdmi_widgets), | |
736 | .dapm_routes = hdmi_routes, | |
737 | .num_dapm_routes = ARRAY_SIZE(hdmi_routes), | |
738 | .of_xlate_dai_id = hdmi_of_xlate_dai_id, | |
739 | .idle_bias_on = 1, | |
740 | .use_pmdown_time = 1, | |
741 | .endianness = 1, | |
742 | .non_legacy_dai_naming = 1, | |
09184118 JS |
743 | }; |
744 | ||
745 | static int hdmi_codec_probe(struct platform_device *pdev) | |
746 | { | |
747 | struct hdmi_codec_pdata *hcd = pdev->dev.platform_data; | |
748 | struct device *dev = &pdev->dev; | |
749 | struct hdmi_codec_priv *hcp; | |
750 | int dai_count, i = 0; | |
751 | int ret; | |
752 | ||
753 | dev_dbg(dev, "%s()\n", __func__); | |
754 | ||
755 | if (!hcd) { | |
756 | dev_err(dev, "%s: No plalform data\n", __func__); | |
757 | return -EINVAL; | |
758 | } | |
759 | ||
760 | dai_count = hcd->i2s + hcd->spdif; | |
761 | if (dai_count < 1 || !hcd->ops || !hcd->ops->hw_params || | |
762 | !hcd->ops->audio_shutdown) { | |
763 | dev_err(dev, "%s: Invalid parameters\n", __func__); | |
764 | return -EINVAL; | |
765 | } | |
766 | ||
767 | hcp = devm_kzalloc(dev, sizeof(*hcp), GFP_KERNEL); | |
768 | if (!hcp) | |
769 | return -ENOMEM; | |
770 | ||
771 | hcp->hcd = *hcd; | |
772 | mutex_init(&hcp->current_stream_lock); | |
773 | ||
a86854d0 | 774 | hcp->daidrv = devm_kcalloc(dev, dai_count, sizeof(*hcp->daidrv), |
09184118 JS |
775 | GFP_KERNEL); |
776 | if (!hcp->daidrv) | |
777 | return -ENOMEM; | |
778 | ||
779 | if (hcd->i2s) { | |
780 | hcp->daidrv[i] = hdmi_i2s_dai; | |
781 | hcp->daidrv[i].playback.channels_max = | |
782 | hcd->max_i2s_channels; | |
783 | i++; | |
784 | } | |
785 | ||
24069b58 | 786 | if (hcd->spdif) |
09184118 JS |
787 | hcp->daidrv[i] = hdmi_spdif_dai; |
788 | ||
d20aa608 | 789 | ret = devm_snd_soc_register_component(dev, &hdmi_driver, hcp->daidrv, |
09184118 JS |
790 | dai_count); |
791 | if (ret) { | |
d20aa608 | 792 | dev_err(dev, "%s: snd_soc_register_component() failed (%d)\n", |
09184118 JS |
793 | __func__, ret); |
794 | return ret; | |
795 | } | |
796 | ||
797 | dev_set_drvdata(dev, hcp); | |
798 | return 0; | |
799 | } | |
800 | ||
09184118 JS |
801 | static struct platform_driver hdmi_codec_driver = { |
802 | .driver = { | |
803 | .name = HDMI_CODEC_DRV_NAME, | |
804 | }, | |
805 | .probe = hdmi_codec_probe, | |
09184118 JS |
806 | }; |
807 | ||
808 | module_platform_driver(hdmi_codec_driver); | |
809 | ||
810 | MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>"); | |
811 | MODULE_DESCRIPTION("HDMI Audio Codec Driver"); | |
812 | MODULE_LICENSE("GPL"); | |
813 | MODULE_ALIAS("platform:" HDMI_CODEC_DRV_NAME); |