Commit | Line | Data |
---|---|---|
2e74796a JN |
1 | /* |
2 | * omap-mcbsp.c -- OMAP ALSA SoC DAI driver using McBSP port | |
3 | * | |
4 | * Copyright (C) 2008 Nokia Corporation | |
5 | * | |
7ec41ee5 | 6 | * Contact: Jarkko Nikula <jarkko.nikula@bitmer.com> |
56a87429 | 7 | * Peter Ujfalusi <peter.ujfalusi@ti.com> |
2e74796a JN |
8 | * |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License | |
11 | * version 2 as published by the Free Software Foundation. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
21 | * 02110-1301 USA | |
22 | * | |
23 | */ | |
24 | ||
25 | #include <linux/init.h> | |
26 | #include <linux/module.h> | |
27 | #include <linux/device.h> | |
2ee65950 | 28 | #include <linux/pm_runtime.h> |
2e74796a JN |
29 | #include <sound/core.h> |
30 | #include <sound/pcm.h> | |
31 | #include <sound/pcm_params.h> | |
32 | #include <sound/initval.h> | |
33 | #include <sound/soc.h> | |
34 | ||
ce491cf8 TL |
35 | #include <plat/dma.h> |
36 | #include <plat/mcbsp.h> | |
219f4316 | 37 | #include "mcbsp.h" |
2e74796a JN |
38 | #include "omap-mcbsp.h" |
39 | #include "omap-pcm.h" | |
40 | ||
0b604856 | 41 | #define OMAP_MCBSP_RATES (SNDRV_PCM_RATE_8000_96000) |
2e74796a | 42 | |
83905c13 IK |
43 | #define OMAP_MCBSP_SOC_SINGLE_S16_EXT(xname, xmin, xmax, \ |
44 | xhandler_get, xhandler_put) \ | |
45 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ | |
46 | .info = omap_mcbsp_st_info_volsw, \ | |
47 | .get = xhandler_get, .put = xhandler_put, \ | |
48 | .private_value = (unsigned long) &(struct soc_mixer_control) \ | |
49 | {.min = xmin, .max = xmax} } | |
50 | ||
219f4316 PU |
51 | enum { |
52 | OMAP_MCBSP_WORD_8 = 0, | |
53 | OMAP_MCBSP_WORD_12, | |
54 | OMAP_MCBSP_WORD_16, | |
55 | OMAP_MCBSP_WORD_20, | |
56 | OMAP_MCBSP_WORD_24, | |
57 | OMAP_MCBSP_WORD_32, | |
58 | }; | |
59 | ||
2e74796a JN |
60 | /* |
61 | * Stream DMA parameters. DMA request line and port address are set runtime | |
62 | * since they are different between OMAP1 and later OMAPs | |
63 | */ | |
caebc0cb EV |
64 | static void omap_mcbsp_set_threshold(struct snd_pcm_substream *substream) |
65 | { | |
66 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 67 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
45656b44 | 68 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); |
cf80e158 | 69 | struct omap_pcm_dma_data *dma_data; |
3f024039 | 70 | int words; |
a0a499c5 | 71 | |
f0fba2ad | 72 | dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); |
cf80e158 | 73 | |
778a17c3 PU |
74 | /* |
75 | * Configure McBSP threshold based on either: | |
76 | * packet_size, when the sDMA is in packet mode, or based on the | |
77 | * period size in THRESHOLD mode, otherwise use McBSP threshold = 1 | |
78 | * for mono streams. | |
79 | */ | |
80 | if (dma_data->packet_size) | |
81 | words = dma_data->packet_size; | |
82 | else if (mcbsp->dma_op_mode == MCBSP_DMA_MODE_THRESHOLD) | |
83 | words = snd_pcm_lib_period_bytes(substream) / | |
84 | (mcbsp->wlen / 8); | |
a0a499c5 | 85 | else |
3f024039 | 86 | words = 1; |
caebc0cb EV |
87 | |
88 | /* Configure McBSP internal buffer usage */ | |
89 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
45656b44 | 90 | omap_mcbsp_set_tx_threshold(mcbsp, words); |
caebc0cb | 91 | else |
45656b44 | 92 | omap_mcbsp_set_rx_threshold(mcbsp, words); |
caebc0cb EV |
93 | } |
94 | ||
ddc29b01 PU |
95 | static int omap_mcbsp_hwrule_min_buffersize(struct snd_pcm_hw_params *params, |
96 | struct snd_pcm_hw_rule *rule) | |
97 | { | |
98 | struct snd_interval *buffer_size = hw_param_interval(params, | |
99 | SNDRV_PCM_HW_PARAM_BUFFER_SIZE); | |
100 | struct snd_interval *channels = hw_param_interval(params, | |
101 | SNDRV_PCM_HW_PARAM_CHANNELS); | |
45656b44 | 102 | struct omap_mcbsp *mcbsp = rule->private; |
ddc29b01 PU |
103 | struct snd_interval frames; |
104 | int size; | |
105 | ||
106 | snd_interval_any(&frames); | |
cb40b63a | 107 | size = mcbsp->pdata->buffer_size; |
ddc29b01 PU |
108 | |
109 | frames.min = size / channels->min; | |
110 | frames.integer = 1; | |
111 | return snd_interval_refine(buffer_size, &frames); | |
112 | } | |
113 | ||
dee89c4d | 114 | static int omap_mcbsp_dai_startup(struct snd_pcm_substream *substream, |
f0fba2ad | 115 | struct snd_soc_dai *cpu_dai) |
2e74796a | 116 | { |
45656b44 | 117 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); |
2e74796a JN |
118 | int err = 0; |
119 | ||
caebc0cb | 120 | if (!cpu_dai->active) |
45656b44 | 121 | err = omap_mcbsp_request(mcbsp); |
caebc0cb | 122 | |
ddc29b01 PU |
123 | /* |
124 | * OMAP3 McBSP FIFO is word structured. | |
125 | * McBSP2 has 1024 + 256 = 1280 word long buffer, | |
126 | * McBSP1,3,4,5 has 128 word long buffer | |
127 | * This means that the size of the FIFO depends on the sample format. | |
128 | * For example on McBSP3: | |
129 | * 16bit samples: size is 128 * 2 = 256 bytes | |
130 | * 32bit samples: size is 128 * 4 = 512 bytes | |
131 | * It is simpler to place constraint for buffer and period based on | |
132 | * channels. | |
133 | * McBSP3 as example again (16 or 32 bit samples): | |
134 | * 1 channel (mono): size is 128 frames (128 words) | |
135 | * 2 channels (stereo): size is 128 / 2 = 64 frames (2 * 64 words) | |
136 | * 4 channels: size is 128 / 4 = 32 frames (4 * 32 words) | |
137 | */ | |
45656b44 | 138 | if (mcbsp->pdata->buffer_size) { |
6984992b | 139 | /* |
998a8a69 | 140 | * Rule for the buffer size. We should not allow |
ce37f5ea PU |
141 | * smaller buffer than the FIFO size to avoid underruns. |
142 | * This applies only for the playback stream. | |
ddc29b01 | 143 | */ |
ce37f5ea PU |
144 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
145 | snd_pcm_hw_rule_add(substream->runtime, 0, | |
146 | SNDRV_PCM_HW_PARAM_BUFFER_SIZE, | |
147 | omap_mcbsp_hwrule_min_buffersize, | |
148 | mcbsp, | |
149 | SNDRV_PCM_HW_PARAM_CHANNELS, -1); | |
caebc0cb | 150 | |
998a8a69 PU |
151 | /* Make sure, that the period size is always even */ |
152 | snd_pcm_hw_constraint_step(substream->runtime, 0, | |
153 | SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 2); | |
6984992b JN |
154 | } |
155 | ||
2e74796a JN |
156 | return err; |
157 | } | |
158 | ||
dee89c4d | 159 | static void omap_mcbsp_dai_shutdown(struct snd_pcm_substream *substream, |
f0fba2ad | 160 | struct snd_soc_dai *cpu_dai) |
2e74796a | 161 | { |
45656b44 | 162 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); |
2e74796a JN |
163 | |
164 | if (!cpu_dai->active) { | |
45656b44 | 165 | omap_mcbsp_free(mcbsp); |
256d9c25 | 166 | mcbsp->configured = 0; |
2e74796a JN |
167 | } |
168 | } | |
169 | ||
dee89c4d | 170 | static int omap_mcbsp_dai_trigger(struct snd_pcm_substream *substream, int cmd, |
f0fba2ad | 171 | struct snd_soc_dai *cpu_dai) |
2e74796a | 172 | { |
45656b44 | 173 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); |
c12abc01 | 174 | int err = 0, play = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); |
2e74796a JN |
175 | |
176 | switch (cmd) { | |
177 | case SNDRV_PCM_TRIGGER_START: | |
178 | case SNDRV_PCM_TRIGGER_RESUME: | |
179 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
256d9c25 | 180 | mcbsp->active++; |
45656b44 | 181 | omap_mcbsp_start(mcbsp, play, !play); |
2e74796a JN |
182 | break; |
183 | ||
184 | case SNDRV_PCM_TRIGGER_STOP: | |
185 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
186 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
45656b44 | 187 | omap_mcbsp_stop(mcbsp, play, !play); |
256d9c25 | 188 | mcbsp->active--; |
2e74796a JN |
189 | break; |
190 | default: | |
191 | err = -EINVAL; | |
192 | } | |
193 | ||
194 | return err; | |
195 | } | |
196 | ||
75581d24 PU |
197 | static snd_pcm_sframes_t omap_mcbsp_dai_delay( |
198 | struct snd_pcm_substream *substream, | |
199 | struct snd_soc_dai *dai) | |
200 | { | |
201 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 202 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
45656b44 | 203 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); |
75581d24 PU |
204 | u16 fifo_use; |
205 | snd_pcm_sframes_t delay; | |
206 | ||
207 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
45656b44 | 208 | fifo_use = omap_mcbsp_get_tx_delay(mcbsp); |
75581d24 | 209 | else |
45656b44 | 210 | fifo_use = omap_mcbsp_get_rx_delay(mcbsp); |
75581d24 PU |
211 | |
212 | /* | |
213 | * Divide the used locations with the channel count to get the | |
214 | * FIFO usage in samples (don't care about partial samples in the | |
215 | * buffer). | |
216 | */ | |
217 | delay = fifo_use / substream->runtime->channels; | |
218 | ||
219 | return delay; | |
220 | } | |
221 | ||
2e74796a | 222 | static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream, |
dee89c4d | 223 | struct snd_pcm_hw_params *params, |
f0fba2ad | 224 | struct snd_soc_dai *cpu_dai) |
2e74796a | 225 | { |
45656b44 | 226 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); |
256d9c25 | 227 | struct omap_mcbsp_reg_cfg *regs = &mcbsp->cfg_regs; |
81ec027e | 228 | struct omap_pcm_dma_data *dma_data; |
caebc0cb | 229 | int wlen, channels, wpf, sync_mode = OMAP_DMA_SYNC_ELEMENT; |
cf80e158 | 230 | int pkt_size = 0; |
5f63ef99 | 231 | unsigned int format, div, framesize, master; |
2e74796a | 232 | |
256d9c25 | 233 | dma_data = &mcbsp->dma_data[substream->stream]; |
778a17c3 | 234 | channels = params_channels(params); |
2686e07b | 235 | |
d98508a1 SL |
236 | switch (params_format(params)) { |
237 | case SNDRV_PCM_FORMAT_S16_LE: | |
81ec027e | 238 | dma_data->data_type = OMAP_DMA_DATA_TYPE_S16; |
cf80e158 | 239 | wlen = 16; |
d98508a1 SL |
240 | break; |
241 | case SNDRV_PCM_FORMAT_S32_LE: | |
81ec027e | 242 | dma_data->data_type = OMAP_DMA_DATA_TYPE_S32; |
cf80e158 | 243 | wlen = 32; |
d98508a1 SL |
244 | break; |
245 | default: | |
246 | return -EINVAL; | |
247 | } | |
45656b44 | 248 | if (mcbsp->pdata->buffer_size) { |
15d01430 | 249 | dma_data->set_threshold = omap_mcbsp_set_threshold; |
cb40b63a | 250 | if (mcbsp->dma_op_mode == MCBSP_DMA_MODE_THRESHOLD) { |
cf80e158 PU |
251 | int period_words, max_thrsh; |
252 | ||
253 | period_words = params_period_bytes(params) / (wlen / 8); | |
254 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
cb40b63a | 255 | max_thrsh = mcbsp->max_tx_thres; |
cf80e158 | 256 | else |
cb40b63a | 257 | max_thrsh = mcbsp->max_rx_thres; |
cf80e158 PU |
258 | /* |
259 | * If the period contains less or equal number of words, | |
260 | * we are using the original threshold mode setup: | |
261 | * McBSP threshold = sDMA frame size = period_size | |
262 | * Otherwise we switch to sDMA packet mode: | |
263 | * McBSP threshold = sDMA packet size | |
264 | * sDMA frame size = period size | |
265 | */ | |
266 | if (period_words > max_thrsh) { | |
267 | int divider = 0; | |
268 | ||
269 | /* | |
270 | * Look for the biggest threshold value, which | |
271 | * divides the period size evenly. | |
272 | */ | |
273 | divider = period_words / max_thrsh; | |
274 | if (period_words % max_thrsh) | |
275 | divider++; | |
276 | while (period_words % divider && | |
277 | divider < period_words) | |
278 | divider++; | |
279 | if (divider == period_words) | |
280 | return -EINVAL; | |
281 | ||
282 | pkt_size = period_words / divider; | |
283 | sync_mode = OMAP_DMA_SYNC_PACKET; | |
284 | } else { | |
285 | sync_mode = OMAP_DMA_SYNC_FRAME; | |
286 | } | |
778a17c3 PU |
287 | } else if (channels > 1) { |
288 | /* Use packet mode for non mono streams */ | |
289 | pkt_size = channels; | |
290 | sync_mode = OMAP_DMA_SYNC_PACKET; | |
cf80e158 | 291 | } |
15d01430 PU |
292 | } |
293 | ||
15d01430 | 294 | dma_data->sync_mode = sync_mode; |
cf80e158 | 295 | dma_data->packet_size = pkt_size; |
fd23b7de | 296 | |
81ec027e | 297 | snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data); |
2e74796a | 298 | |
256d9c25 | 299 | if (mcbsp->configured) { |
2e74796a JN |
300 | /* McBSP already configured by another stream */ |
301 | return 0; | |
302 | } | |
303 | ||
4dd04172 JN |
304 | regs->rcr2 &= ~(RPHASE | RFRLEN2(0x7f) | RWDLEN2(7)); |
305 | regs->xcr2 &= ~(RPHASE | XFRLEN2(0x7f) | XWDLEN2(7)); | |
306 | regs->rcr1 &= ~(RFRLEN1(0x7f) | RWDLEN1(7)); | |
307 | regs->xcr1 &= ~(XFRLEN1(0x7f) | XWDLEN1(7)); | |
256d9c25 | 308 | format = mcbsp->fmt & SND_SOC_DAIFMT_FORMAT_MASK; |
778a17c3 | 309 | wpf = channels; |
299a151f PU |
310 | if (channels == 2 && (format == SND_SOC_DAIFMT_I2S || |
311 | format == SND_SOC_DAIFMT_LEFT_J)) { | |
5f63ef99 GG |
312 | /* Use dual-phase frames */ |
313 | regs->rcr2 |= RPHASE; | |
314 | regs->xcr2 |= XPHASE; | |
315 | /* Set 1 word per (McBSP) frame for phase1 and phase2 */ | |
316 | wpf--; | |
317 | regs->rcr2 |= RFRLEN2(wpf - 1); | |
318 | regs->xcr2 |= XFRLEN2(wpf - 1); | |
2e74796a JN |
319 | } |
320 | ||
5f63ef99 GG |
321 | regs->rcr1 |= RFRLEN1(wpf - 1); |
322 | regs->xcr1 |= XFRLEN1(wpf - 1); | |
323 | ||
2e74796a JN |
324 | switch (params_format(params)) { |
325 | case SNDRV_PCM_FORMAT_S16_LE: | |
326 | /* Set word lengths */ | |
327 | regs->rcr2 |= RWDLEN2(OMAP_MCBSP_WORD_16); | |
328 | regs->rcr1 |= RWDLEN1(OMAP_MCBSP_WORD_16); | |
329 | regs->xcr2 |= XWDLEN2(OMAP_MCBSP_WORD_16); | |
330 | regs->xcr1 |= XWDLEN1(OMAP_MCBSP_WORD_16); | |
2e74796a | 331 | break; |
d98508a1 SL |
332 | case SNDRV_PCM_FORMAT_S32_LE: |
333 | /* Set word lengths */ | |
d98508a1 SL |
334 | regs->rcr2 |= RWDLEN2(OMAP_MCBSP_WORD_32); |
335 | regs->rcr1 |= RWDLEN1(OMAP_MCBSP_WORD_32); | |
336 | regs->xcr2 |= XWDLEN2(OMAP_MCBSP_WORD_32); | |
337 | regs->xcr1 |= XWDLEN1(OMAP_MCBSP_WORD_32); | |
338 | break; | |
2e74796a JN |
339 | default: |
340 | /* Unsupported PCM format */ | |
341 | return -EINVAL; | |
342 | } | |
343 | ||
5f63ef99 GG |
344 | /* In McBSP master modes, FRAME (i.e. sample rate) is generated |
345 | * by _counting_ BCLKs. Calculate frame size in BCLKs */ | |
256d9c25 | 346 | master = mcbsp->fmt & SND_SOC_DAIFMT_MASTER_MASK; |
5f63ef99 | 347 | if (master == SND_SOC_DAIFMT_CBS_CFS) { |
256d9c25 PU |
348 | div = mcbsp->clk_div ? mcbsp->clk_div : 1; |
349 | framesize = (mcbsp->in_freq / div) / params_rate(params); | |
5f63ef99 GG |
350 | |
351 | if (framesize < wlen * channels) { | |
352 | printk(KERN_ERR "%s: not enough bandwidth for desired rate and " | |
353 | "channels\n", __func__); | |
354 | return -EINVAL; | |
355 | } | |
356 | } else | |
357 | framesize = wlen * channels; | |
358 | ||
ba9d0fd0 | 359 | /* Set FS period and length in terms of bit clock periods */ |
4dd04172 JN |
360 | regs->srgr2 &= ~FPER(0xfff); |
361 | regs->srgr1 &= ~FWID(0xff); | |
c29b206f | 362 | switch (format) { |
ba9d0fd0 | 363 | case SND_SOC_DAIFMT_I2S: |
299a151f | 364 | case SND_SOC_DAIFMT_LEFT_J: |
5f63ef99 GG |
365 | regs->srgr2 |= FPER(framesize - 1); |
366 | regs->srgr1 |= FWID((framesize >> 1) - 1); | |
ba9d0fd0 | 367 | break; |
3ba191ce | 368 | case SND_SOC_DAIFMT_DSP_A: |
bd25867a | 369 | case SND_SOC_DAIFMT_DSP_B: |
5f63ef99 | 370 | regs->srgr2 |= FPER(framesize - 1); |
36ce8582 | 371 | regs->srgr1 |= FWID(0); |
ba9d0fd0 JN |
372 | break; |
373 | } | |
374 | ||
256d9c25 PU |
375 | omap_mcbsp_config(mcbsp, &mcbsp->cfg_regs); |
376 | mcbsp->wlen = wlen; | |
377 | mcbsp->configured = 1; | |
2e74796a JN |
378 | |
379 | return 0; | |
380 | } | |
381 | ||
382 | /* | |
383 | * This must be called before _set_clkdiv and _set_sysclk since McBSP register | |
384 | * cache is initialized here | |
385 | */ | |
8687eb8b | 386 | static int omap_mcbsp_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai, |
2e74796a JN |
387 | unsigned int fmt) |
388 | { | |
45656b44 | 389 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); |
256d9c25 | 390 | struct omap_mcbsp_reg_cfg *regs = &mcbsp->cfg_regs; |
91a18ae8 | 391 | bool inv_fs = false; |
2e74796a | 392 | |
256d9c25 | 393 | if (mcbsp->configured) |
2e74796a JN |
394 | return 0; |
395 | ||
256d9c25 | 396 | mcbsp->fmt = fmt; |
2e74796a JN |
397 | memset(regs, 0, sizeof(*regs)); |
398 | /* Generic McBSP register settings */ | |
399 | regs->spcr2 |= XINTM(3) | FREE; | |
400 | regs->spcr1 |= RINTM(3); | |
c721bbda | 401 | /* RFIG and XFIG are not defined in 34xx */ |
d4686c65 | 402 | if (!cpu_is_omap34xx() && !cpu_is_omap44xx()) { |
c721bbda EN |
403 | regs->rcr2 |= RFIG; |
404 | regs->xcr2 |= XFIG; | |
405 | } | |
d4686c65 | 406 | if (cpu_is_omap2430() || cpu_is_omap34xx() || cpu_is_omap44xx()) { |
32080af7 JN |
407 | regs->xccr = DXENDLY(1) | XDMAEN | XDISABLE; |
408 | regs->rccr = RFULL_CYCLE | RDMAEN | RDISABLE; | |
ef390c0b | 409 | } |
2e74796a JN |
410 | |
411 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
412 | case SND_SOC_DAIFMT_I2S: | |
413 | /* 1-bit data delay */ | |
414 | regs->rcr2 |= RDATDLY(1); | |
415 | regs->xcr2 |= XDATDLY(1); | |
416 | break; | |
299a151f PU |
417 | case SND_SOC_DAIFMT_LEFT_J: |
418 | /* 0-bit data delay */ | |
419 | regs->rcr2 |= RDATDLY(0); | |
420 | regs->xcr2 |= XDATDLY(0); | |
421 | regs->spcr1 |= RJUST(2); | |
422 | /* Invert FS polarity configuration */ | |
91a18ae8 | 423 | inv_fs = true; |
299a151f | 424 | break; |
3ba191ce PU |
425 | case SND_SOC_DAIFMT_DSP_A: |
426 | /* 1-bit data delay */ | |
427 | regs->rcr2 |= RDATDLY(1); | |
428 | regs->xcr2 |= XDATDLY(1); | |
429 | /* Invert FS polarity configuration */ | |
91a18ae8 | 430 | inv_fs = true; |
3ba191ce | 431 | break; |
bd25867a | 432 | case SND_SOC_DAIFMT_DSP_B: |
3336c5b5 AK |
433 | /* 0-bit data delay */ |
434 | regs->rcr2 |= RDATDLY(0); | |
435 | regs->xcr2 |= XDATDLY(0); | |
36ce8582 | 436 | /* Invert FS polarity configuration */ |
91a18ae8 | 437 | inv_fs = true; |
3336c5b5 | 438 | break; |
2e74796a JN |
439 | default: |
440 | /* Unsupported data format */ | |
441 | return -EINVAL; | |
442 | } | |
443 | ||
444 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
445 | case SND_SOC_DAIFMT_CBS_CFS: | |
446 | /* McBSP master. Set FS and bit clocks as outputs */ | |
447 | regs->pcr0 |= FSXM | FSRM | | |
448 | CLKXM | CLKRM; | |
449 | /* Sample rate generator drives the FS */ | |
450 | regs->srgr2 |= FSGM; | |
451 | break; | |
452 | case SND_SOC_DAIFMT_CBM_CFM: | |
453 | /* McBSP slave */ | |
454 | break; | |
455 | default: | |
456 | /* Unsupported master/slave configuration */ | |
457 | return -EINVAL; | |
458 | } | |
459 | ||
460 | /* Set bit clock (CLKX/CLKR) and FS polarities */ | |
91a18ae8 | 461 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
2e74796a JN |
462 | case SND_SOC_DAIFMT_NB_NF: |
463 | /* | |
464 | * Normal BCLK + FS. | |
465 | * FS active low. TX data driven on falling edge of bit clock | |
466 | * and RX data sampled on rising edge of bit clock. | |
467 | */ | |
468 | regs->pcr0 |= FSXP | FSRP | | |
469 | CLKXP | CLKRP; | |
470 | break; | |
471 | case SND_SOC_DAIFMT_NB_IF: | |
472 | regs->pcr0 |= CLKXP | CLKRP; | |
473 | break; | |
474 | case SND_SOC_DAIFMT_IB_NF: | |
475 | regs->pcr0 |= FSXP | FSRP; | |
476 | break; | |
477 | case SND_SOC_DAIFMT_IB_IF: | |
478 | break; | |
479 | default: | |
480 | return -EINVAL; | |
481 | } | |
91a18ae8 JN |
482 | if (inv_fs == true) |
483 | regs->pcr0 ^= FSXP | FSRP; | |
2e74796a JN |
484 | |
485 | return 0; | |
486 | } | |
487 | ||
8687eb8b | 488 | static int omap_mcbsp_dai_set_clkdiv(struct snd_soc_dai *cpu_dai, |
2e74796a JN |
489 | int div_id, int div) |
490 | { | |
45656b44 | 491 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); |
256d9c25 | 492 | struct omap_mcbsp_reg_cfg *regs = &mcbsp->cfg_regs; |
2e74796a JN |
493 | |
494 | if (div_id != OMAP_MCBSP_CLKGDV) | |
495 | return -ENODEV; | |
496 | ||
256d9c25 | 497 | mcbsp->clk_div = div; |
4dd04172 | 498 | regs->srgr1 &= ~CLKGDV(0xff); |
2e74796a JN |
499 | regs->srgr1 |= CLKGDV(div - 1); |
500 | ||
501 | return 0; | |
502 | } | |
503 | ||
8687eb8b | 504 | static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai, |
2e74796a JN |
505 | int clk_id, unsigned int freq, |
506 | int dir) | |
507 | { | |
45656b44 | 508 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); |
256d9c25 | 509 | struct omap_mcbsp_reg_cfg *regs = &mcbsp->cfg_regs; |
2e74796a JN |
510 | int err = 0; |
511 | ||
256d9c25 PU |
512 | if (mcbsp->active) { |
513 | if (freq == mcbsp->in_freq) | |
34c86985 JN |
514 | return 0; |
515 | else | |
516 | return -EBUSY; | |
141947e6 | 517 | } |
34c86985 | 518 | |
5788c62e PU |
519 | if (clk_id == OMAP_MCBSP_SYSCLK_CLK || |
520 | clk_id == OMAP_MCBSP_SYSCLK_CLKS_FCLK || | |
521 | clk_id == OMAP_MCBSP_SYSCLK_CLKS_EXT || | |
522 | clk_id == OMAP_MCBSP_SYSCLK_CLKX_EXT || | |
523 | clk_id == OMAP_MCBSP_SYSCLK_CLKR_EXT) { | |
524 | mcbsp->in_freq = freq; | |
525 | regs->srgr2 &= ~CLKSM; | |
526 | regs->pcr0 &= ~SCLKME; | |
527 | } else if (cpu_class_is_omap1()) { | |
528 | /* | |
529 | * McBSP CLKR/FSR signal muxing functions are only available on | |
530 | * OMAP2 or newer versions | |
531 | */ | |
532 | return -EINVAL; | |
533 | } | |
5f63ef99 | 534 | |
2e74796a JN |
535 | switch (clk_id) { |
536 | case OMAP_MCBSP_SYSCLK_CLK: | |
537 | regs->srgr2 |= CLKSM; | |
538 | break; | |
539 | case OMAP_MCBSP_SYSCLK_CLKS_FCLK: | |
d1358657 PW |
540 | if (cpu_class_is_omap1()) { |
541 | err = -EINVAL; | |
542 | break; | |
543 | } | |
45656b44 | 544 | err = omap2_mcbsp_set_clks_src(mcbsp, |
d1358657 PW |
545 | MCBSP_CLKS_PRCM_SRC); |
546 | break; | |
2e74796a | 547 | case OMAP_MCBSP_SYSCLK_CLKS_EXT: |
d1358657 PW |
548 | if (cpu_class_is_omap1()) { |
549 | err = 0; | |
550 | break; | |
551 | } | |
45656b44 | 552 | err = omap2_mcbsp_set_clks_src(mcbsp, |
d1358657 | 553 | MCBSP_CLKS_PAD_SRC); |
2e74796a JN |
554 | break; |
555 | ||
556 | case OMAP_MCBSP_SYSCLK_CLKX_EXT: | |
557 | regs->srgr2 |= CLKSM; | |
558 | case OMAP_MCBSP_SYSCLK_CLKR_EXT: | |
559 | regs->pcr0 |= SCLKME; | |
560 | break; | |
d2c0bdaa | 561 | |
cf4c87ab | 562 | |
d2c0bdaa | 563 | case OMAP_MCBSP_CLKR_SRC_CLKR: |
cd1f08c7 | 564 | err = omap_mcbsp_6pin_src_mux(mcbsp, CLKR_SRC_CLKR); |
cf4c87ab | 565 | break; |
d2c0bdaa | 566 | case OMAP_MCBSP_CLKR_SRC_CLKX: |
cd1f08c7 | 567 | err = omap_mcbsp_6pin_src_mux(mcbsp, CLKR_SRC_CLKX); |
cf4c87ab | 568 | break; |
d2c0bdaa | 569 | case OMAP_MCBSP_FSR_SRC_FSR: |
cd1f08c7 | 570 | err = omap_mcbsp_6pin_src_mux(mcbsp, FSR_SRC_FSR); |
cf4c87ab | 571 | break; |
d2c0bdaa | 572 | case OMAP_MCBSP_FSR_SRC_FSX: |
cd1f08c7 | 573 | err = omap_mcbsp_6pin_src_mux(mcbsp, FSR_SRC_FSX); |
d2c0bdaa | 574 | break; |
2e74796a JN |
575 | default: |
576 | err = -ENODEV; | |
577 | } | |
578 | ||
579 | return err; | |
580 | } | |
581 | ||
85e7652d | 582 | static const struct snd_soc_dai_ops mcbsp_dai_ops = { |
6335d055 EM |
583 | .startup = omap_mcbsp_dai_startup, |
584 | .shutdown = omap_mcbsp_dai_shutdown, | |
585 | .trigger = omap_mcbsp_dai_trigger, | |
75581d24 | 586 | .delay = omap_mcbsp_dai_delay, |
6335d055 EM |
587 | .hw_params = omap_mcbsp_dai_hw_params, |
588 | .set_fmt = omap_mcbsp_dai_set_dai_fmt, | |
589 | .set_clkdiv = omap_mcbsp_dai_set_clkdiv, | |
590 | .set_sysclk = omap_mcbsp_dai_set_dai_sysclk, | |
591 | }; | |
592 | ||
2ee65950 PU |
593 | static int omap_mcbsp_probe(struct snd_soc_dai *dai) |
594 | { | |
595 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(dai); | |
596 | ||
597 | pm_runtime_enable(mcbsp->dev); | |
598 | ||
599 | return 0; | |
600 | } | |
601 | ||
602 | static int omap_mcbsp_remove(struct snd_soc_dai *dai) | |
603 | { | |
604 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(dai); | |
605 | ||
606 | pm_runtime_disable(mcbsp->dev); | |
607 | ||
608 | return 0; | |
609 | } | |
610 | ||
6179b772 | 611 | static struct snd_soc_dai_driver omap_mcbsp_dai = { |
2ee65950 PU |
612 | .probe = omap_mcbsp_probe, |
613 | .remove = omap_mcbsp_remove, | |
f0fba2ad LG |
614 | .playback = { |
615 | .channels_min = 1, | |
616 | .channels_max = 16, | |
617 | .rates = OMAP_MCBSP_RATES, | |
618 | .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, | |
619 | }, | |
620 | .capture = { | |
621 | .channels_min = 1, | |
622 | .channels_max = 16, | |
623 | .rates = OMAP_MCBSP_RATES, | |
624 | .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, | |
625 | }, | |
626 | .ops = &mcbsp_dai_ops, | |
2e74796a | 627 | }; |
8def464d | 628 | |
3484457f | 629 | static int omap_mcbsp_st_info_volsw(struct snd_kcontrol *kcontrol, |
83905c13 IK |
630 | struct snd_ctl_elem_info *uinfo) |
631 | { | |
632 | struct soc_mixer_control *mc = | |
633 | (struct soc_mixer_control *)kcontrol->private_value; | |
634 | int max = mc->max; | |
635 | int min = mc->min; | |
636 | ||
637 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
638 | uinfo->count = 1; | |
639 | uinfo->value.integer.min = min; | |
640 | uinfo->value.integer.max = max; | |
641 | return 0; | |
642 | } | |
643 | ||
45656b44 | 644 | #define OMAP_MCBSP_ST_SET_CHANNEL_VOLUME(channel) \ |
83905c13 | 645 | static int \ |
45656b44 | 646 | omap_mcbsp_set_st_ch##channel##_volume(struct snd_kcontrol *kc, \ |
83905c13 IK |
647 | struct snd_ctl_elem_value *uc) \ |
648 | { \ | |
45656b44 PU |
649 | struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kc); \ |
650 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); \ | |
83905c13 IK |
651 | struct soc_mixer_control *mc = \ |
652 | (struct soc_mixer_control *)kc->private_value; \ | |
653 | int max = mc->max; \ | |
654 | int min = mc->min; \ | |
655 | int val = uc->value.integer.value[0]; \ | |
656 | \ | |
657 | if (val < min || val > max) \ | |
658 | return -EINVAL; \ | |
659 | \ | |
660 | /* OMAP McBSP implementation uses index values 0..4 */ \ | |
45656b44 | 661 | return omap_st_set_chgain(mcbsp, channel, val); \ |
83905c13 IK |
662 | } |
663 | ||
45656b44 | 664 | #define OMAP_MCBSP_ST_GET_CHANNEL_VOLUME(channel) \ |
83905c13 | 665 | static int \ |
45656b44 | 666 | omap_mcbsp_get_st_ch##channel##_volume(struct snd_kcontrol *kc, \ |
83905c13 IK |
667 | struct snd_ctl_elem_value *uc) \ |
668 | { \ | |
45656b44 PU |
669 | struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kc); \ |
670 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); \ | |
83905c13 IK |
671 | s16 chgain; \ |
672 | \ | |
45656b44 | 673 | if (omap_st_get_chgain(mcbsp, channel, &chgain)) \ |
83905c13 IK |
674 | return -EAGAIN; \ |
675 | \ | |
676 | uc->value.integer.value[0] = chgain; \ | |
677 | return 0; \ | |
678 | } | |
679 | ||
45656b44 PU |
680 | OMAP_MCBSP_ST_SET_CHANNEL_VOLUME(0) |
681 | OMAP_MCBSP_ST_SET_CHANNEL_VOLUME(1) | |
682 | OMAP_MCBSP_ST_GET_CHANNEL_VOLUME(0) | |
683 | OMAP_MCBSP_ST_GET_CHANNEL_VOLUME(1) | |
83905c13 IK |
684 | |
685 | static int omap_mcbsp_st_put_mode(struct snd_kcontrol *kcontrol, | |
686 | struct snd_ctl_elem_value *ucontrol) | |
687 | { | |
45656b44 PU |
688 | struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol); |
689 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); | |
83905c13 IK |
690 | u8 value = ucontrol->value.integer.value[0]; |
691 | ||
45656b44 | 692 | if (value == omap_st_is_enabled(mcbsp)) |
83905c13 IK |
693 | return 0; |
694 | ||
695 | if (value) | |
45656b44 | 696 | omap_st_enable(mcbsp); |
83905c13 | 697 | else |
45656b44 | 698 | omap_st_disable(mcbsp); |
83905c13 IK |
699 | |
700 | return 1; | |
701 | } | |
702 | ||
703 | static int omap_mcbsp_st_get_mode(struct snd_kcontrol *kcontrol, | |
704 | struct snd_ctl_elem_value *ucontrol) | |
705 | { | |
45656b44 PU |
706 | struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol); |
707 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); | |
83905c13 | 708 | |
45656b44 | 709 | ucontrol->value.integer.value[0] = omap_st_is_enabled(mcbsp); |
83905c13 IK |
710 | return 0; |
711 | } | |
712 | ||
713 | static const struct snd_kcontrol_new omap_mcbsp2_st_controls[] = { | |
714 | SOC_SINGLE_EXT("McBSP2 Sidetone Switch", 1, 0, 1, 0, | |
715 | omap_mcbsp_st_get_mode, omap_mcbsp_st_put_mode), | |
716 | OMAP_MCBSP_SOC_SINGLE_S16_EXT("McBSP2 Sidetone Channel 0 Volume", | |
717 | -32768, 32767, | |
45656b44 PU |
718 | omap_mcbsp_get_st_ch0_volume, |
719 | omap_mcbsp_set_st_ch0_volume), | |
83905c13 IK |
720 | OMAP_MCBSP_SOC_SINGLE_S16_EXT("McBSP2 Sidetone Channel 1 Volume", |
721 | -32768, 32767, | |
45656b44 PU |
722 | omap_mcbsp_get_st_ch1_volume, |
723 | omap_mcbsp_set_st_ch1_volume), | |
83905c13 IK |
724 | }; |
725 | ||
726 | static const struct snd_kcontrol_new omap_mcbsp3_st_controls[] = { | |
727 | SOC_SINGLE_EXT("McBSP3 Sidetone Switch", 2, 0, 1, 0, | |
728 | omap_mcbsp_st_get_mode, omap_mcbsp_st_put_mode), | |
729 | OMAP_MCBSP_SOC_SINGLE_S16_EXT("McBSP3 Sidetone Channel 0 Volume", | |
730 | -32768, 32767, | |
45656b44 PU |
731 | omap_mcbsp_get_st_ch0_volume, |
732 | omap_mcbsp_set_st_ch0_volume), | |
83905c13 IK |
733 | OMAP_MCBSP_SOC_SINGLE_S16_EXT("McBSP3 Sidetone Channel 1 Volume", |
734 | -32768, 32767, | |
45656b44 PU |
735 | omap_mcbsp_get_st_ch1_volume, |
736 | omap_mcbsp_set_st_ch1_volume), | |
83905c13 IK |
737 | }; |
738 | ||
45656b44 | 739 | int omap_mcbsp_st_add_controls(struct snd_soc_pcm_runtime *rtd) |
83905c13 | 740 | { |
45656b44 PU |
741 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
742 | struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); | |
743 | ||
744 | if (!mcbsp->st_data) | |
83905c13 IK |
745 | return -ENODEV; |
746 | ||
45656b44 PU |
747 | switch (cpu_dai->id) { |
748 | case 2: /* McBSP 2 */ | |
749 | return snd_soc_add_dai_controls(cpu_dai, | |
750 | omap_mcbsp2_st_controls, | |
83905c13 | 751 | ARRAY_SIZE(omap_mcbsp2_st_controls)); |
45656b44 PU |
752 | case 3: /* McBSP 3 */ |
753 | return snd_soc_add_dai_controls(cpu_dai, | |
754 | omap_mcbsp3_st_controls, | |
83905c13 IK |
755 | ARRAY_SIZE(omap_mcbsp3_st_controls)); |
756 | default: | |
757 | break; | |
758 | } | |
759 | ||
760 | return -EINVAL; | |
761 | } | |
762 | EXPORT_SYMBOL_GPL(omap_mcbsp_st_add_controls); | |
763 | ||
f0fba2ad LG |
764 | static __devinit int asoc_mcbsp_probe(struct platform_device *pdev) |
765 | { | |
2ee65950 PU |
766 | struct omap_mcbsp_platform_data *pdata = dev_get_platdata(&pdev->dev); |
767 | struct omap_mcbsp *mcbsp; | |
45656b44 PU |
768 | int ret; |
769 | ||
2ee65950 PU |
770 | if (!pdata) { |
771 | dev_err(&pdev->dev, "missing platform data.\n"); | |
772 | return -EINVAL; | |
773 | } | |
774 | mcbsp = devm_kzalloc(&pdev->dev, sizeof(struct omap_mcbsp), GFP_KERNEL); | |
775 | if (!mcbsp) | |
776 | return -ENOMEM; | |
777 | ||
778 | mcbsp->id = pdev->id; | |
779 | mcbsp->pdata = pdata; | |
780 | mcbsp->dev = &pdev->dev; | |
781 | platform_set_drvdata(pdev, mcbsp); | |
782 | ||
783 | ret = omap_mcbsp_init(pdev); | |
45656b44 PU |
784 | if (!ret) |
785 | return snd_soc_register_dai(&pdev->dev, &omap_mcbsp_dai); | |
786 | ||
787 | return ret; | |
f0fba2ad LG |
788 | } |
789 | ||
790 | static int __devexit asoc_mcbsp_remove(struct platform_device *pdev) | |
791 | { | |
2ee65950 PU |
792 | struct omap_mcbsp *mcbsp = platform_get_drvdata(pdev); |
793 | ||
f0fba2ad | 794 | snd_soc_unregister_dai(&pdev->dev); |
2ee65950 PU |
795 | |
796 | if (mcbsp->pdata->ops && mcbsp->pdata->ops->free) | |
797 | mcbsp->pdata->ops->free(mcbsp->id); | |
798 | ||
799 | omap_mcbsp_sysfs_remove(mcbsp); | |
800 | ||
801 | clk_put(mcbsp->fclk); | |
802 | ||
803 | platform_set_drvdata(pdev, NULL); | |
804 | ||
f0fba2ad LG |
805 | return 0; |
806 | } | |
807 | ||
808 | static struct platform_driver asoc_mcbsp_driver = { | |
809 | .driver = { | |
45656b44 | 810 | .name = "omap-mcbsp", |
f0fba2ad LG |
811 | .owner = THIS_MODULE, |
812 | }, | |
813 | ||
814 | .probe = asoc_mcbsp_probe, | |
815 | .remove = __devexit_p(asoc_mcbsp_remove), | |
816 | }; | |
817 | ||
beda5bf5 | 818 | module_platform_driver(asoc_mcbsp_driver); |
3f4b783c | 819 | |
7ec41ee5 | 820 | MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@bitmer.com>"); |
2e74796a JN |
821 | MODULE_DESCRIPTION("OMAP I2S SoC Interface"); |
822 | MODULE_LICENSE("GPL"); |