Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 1 | /* |
Mark Brown | a4b1299 | 2014-03-12 23:04:35 +0000 | [diff] [blame] | 2 | * sst_mfld_platform.c - Intel MID Platform driver |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 3 | * |
Vinod Koul | 0cd5751 | 2013-03-29 23:41:42 +0530 | [diff] [blame] | 4 | * Copyright (C) 2010-2013 Intel Corp |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 5 | * Author: Vinod Koul <vinod.koul@intel.com> |
| 6 | * Author: Harsha Priya <priya.harsha@intel.com> |
| 7 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; version 2 of the License. |
| 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 | * |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 18 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 19 | */ |
| 20 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 21 | |
| 22 | #include <linux/slab.h> |
| 23 | #include <linux/io.h> |
Paul Gortmaker | da155d5 | 2011-07-15 12:38:28 -0400 | [diff] [blame] | 24 | #include <linux/module.h> |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 25 | #include <sound/core.h> |
| 26 | #include <sound/pcm.h> |
| 27 | #include <sound/pcm_params.h> |
| 28 | #include <sound/soc.h> |
Vinod Koul | c514a91 | 2012-08-16 17:10:42 +0530 | [diff] [blame] | 29 | #include <sound/compress_driver.h> |
Mark Brown | a4b1299 | 2014-03-12 23:04:35 +0000 | [diff] [blame] | 30 | #include "sst-mfld-platform.h" |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 31 | |
Vinod Koul | 4b68b4e | 2014-05-05 14:27:50 +0530 | [diff] [blame] | 32 | struct sst_device *sst; |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 33 | static DEFINE_MUTEX(sst_lock); |
Vinod Koul | 4b68b4e | 2014-05-05 14:27:50 +0530 | [diff] [blame] | 34 | extern struct snd_compr_ops sst_platform_compr_ops; |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 35 | |
| 36 | int sst_register_dsp(struct sst_device *dev) |
| 37 | { |
Takashi Iwai | 656a22a | 2013-11-05 18:40:01 +0100 | [diff] [blame] | 38 | if (WARN_ON(!dev)) |
| 39 | return -EINVAL; |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 40 | if (!try_module_get(dev->dev->driver->owner)) |
| 41 | return -ENODEV; |
| 42 | mutex_lock(&sst_lock); |
| 43 | if (sst) { |
| 44 | pr_err("we already have a device %s\n", sst->name); |
| 45 | module_put(dev->dev->driver->owner); |
| 46 | mutex_unlock(&sst_lock); |
| 47 | return -EEXIST; |
| 48 | } |
| 49 | pr_debug("registering device %s\n", dev->name); |
| 50 | sst = dev; |
| 51 | mutex_unlock(&sst_lock); |
| 52 | return 0; |
| 53 | } |
| 54 | EXPORT_SYMBOL_GPL(sst_register_dsp); |
| 55 | |
| 56 | int sst_unregister_dsp(struct sst_device *dev) |
| 57 | { |
Takashi Iwai | 656a22a | 2013-11-05 18:40:01 +0100 | [diff] [blame] | 58 | if (WARN_ON(!dev)) |
| 59 | return -EINVAL; |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 60 | if (dev != sst) |
| 61 | return -EINVAL; |
| 62 | |
| 63 | mutex_lock(&sst_lock); |
| 64 | |
| 65 | if (!sst) { |
| 66 | mutex_unlock(&sst_lock); |
| 67 | return -EIO; |
| 68 | } |
| 69 | |
| 70 | module_put(sst->dev->driver->owner); |
| 71 | pr_debug("unreg %s\n", sst->name); |
| 72 | sst = NULL; |
| 73 | mutex_unlock(&sst_lock); |
| 74 | return 0; |
| 75 | } |
| 76 | EXPORT_SYMBOL_GPL(sst_unregister_dsp); |
| 77 | |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 78 | static struct snd_pcm_hardware sst_platform_pcm_hw = { |
| 79 | .info = (SNDRV_PCM_INFO_INTERLEAVED | |
| 80 | SNDRV_PCM_INFO_DOUBLE | |
| 81 | SNDRV_PCM_INFO_PAUSE | |
| 82 | SNDRV_PCM_INFO_RESUME | |
| 83 | SNDRV_PCM_INFO_MMAP| |
| 84 | SNDRV_PCM_INFO_MMAP_VALID | |
| 85 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
| 86 | SNDRV_PCM_INFO_SYNC_START), |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 87 | .buffer_bytes_max = SST_MAX_BUFFER, |
| 88 | .period_bytes_min = SST_MIN_PERIOD_BYTES, |
| 89 | .period_bytes_max = SST_MAX_PERIOD_BYTES, |
| 90 | .periods_min = SST_MIN_PERIODS, |
| 91 | .periods_max = SST_MAX_PERIODS, |
| 92 | .fifo_size = SST_FIFO_SIZE, |
| 93 | }; |
| 94 | |
| 95 | /* MFLD - MSIC */ |
Axel Lin | d1b7328 | 2011-09-27 10:38:50 +0800 | [diff] [blame] | 96 | static struct snd_soc_dai_driver sst_platform_dai[] = { |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 97 | { |
Vinod Koul | 5106f5a | 2014-05-15 21:38:15 +0530 | [diff] [blame] | 98 | .name = "Headset-cpu-dai", |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 99 | .id = 0, |
| 100 | .playback = { |
| 101 | .channels_min = SST_STEREO, |
| 102 | .channels_max = SST_STEREO, |
| 103 | .rates = SNDRV_PCM_RATE_48000, |
| 104 | .formats = SNDRV_PCM_FMTBIT_S24_LE, |
| 105 | }, |
Harsha Priya | a7bffdf | 2011-01-28 22:27:26 +0530 | [diff] [blame] | 106 | .capture = { |
| 107 | .channels_min = 1, |
| 108 | .channels_max = 5, |
| 109 | .rates = SNDRV_PCM_RATE_48000, |
| 110 | .formats = SNDRV_PCM_FMTBIT_S24_LE, |
| 111 | }, |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 112 | }, |
| 113 | { |
Vinod Koul | c514a91 | 2012-08-16 17:10:42 +0530 | [diff] [blame] | 114 | .name = "Compress-cpu-dai", |
| 115 | .compress_dai = 1, |
| 116 | .playback = { |
| 117 | .channels_min = SST_STEREO, |
| 118 | .channels_max = SST_STEREO, |
| 119 | .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000, |
| 120 | .formats = SNDRV_PCM_FMTBIT_S16_LE, |
| 121 | }, |
| 122 | }, |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 123 | }; |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 124 | |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 125 | /* helper functions */ |
Vinod Koul | 4496ffa | 2014-05-05 14:27:49 +0530 | [diff] [blame] | 126 | void sst_set_stream_status(struct sst_runtime_stream *stream, |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 127 | int state) |
| 128 | { |
Lu Guanqun | d89b0a1 | 2011-04-08 15:38:48 +0800 | [diff] [blame] | 129 | unsigned long flags; |
| 130 | spin_lock_irqsave(&stream->status_lock, flags); |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 131 | stream->stream_status = state; |
Lu Guanqun | d89b0a1 | 2011-04-08 15:38:48 +0800 | [diff] [blame] | 132 | spin_unlock_irqrestore(&stream->status_lock, flags); |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 133 | } |
| 134 | |
| 135 | static inline int sst_get_stream_status(struct sst_runtime_stream *stream) |
| 136 | { |
| 137 | int state; |
Lu Guanqun | d89b0a1 | 2011-04-08 15:38:48 +0800 | [diff] [blame] | 138 | unsigned long flags; |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 139 | |
Lu Guanqun | d89b0a1 | 2011-04-08 15:38:48 +0800 | [diff] [blame] | 140 | spin_lock_irqsave(&stream->status_lock, flags); |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 141 | state = stream->stream_status; |
Lu Guanqun | d89b0a1 | 2011-04-08 15:38:48 +0800 | [diff] [blame] | 142 | spin_unlock_irqrestore(&stream->status_lock, flags); |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 143 | return state; |
| 144 | } |
| 145 | |
| 146 | static void sst_fill_pcm_params(struct snd_pcm_substream *substream, |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 147 | struct sst_pcm_params *param) |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 148 | { |
| 149 | |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 150 | param->num_chan = (u8) substream->runtime->channels; |
| 151 | param->pcm_wd_sz = substream->runtime->sample_bits; |
| 152 | param->reserved = 0; |
| 153 | param->sfreq = substream->runtime->rate; |
| 154 | param->ring_buffer_size = snd_pcm_lib_buffer_bytes(substream); |
| 155 | param->period_count = substream->runtime->period_size; |
| 156 | param->ring_buffer_addr = virt_to_phys(substream->dma_buffer.area); |
| 157 | pr_debug("period_cnt = %d\n", param->period_count); |
| 158 | pr_debug("sfreq= %d, wd_sz = %d\n", param->sfreq, param->pcm_wd_sz); |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 159 | } |
| 160 | |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 161 | static int sst_platform_alloc_stream(struct snd_pcm_substream *substream) |
| 162 | { |
| 163 | struct sst_runtime_stream *stream = |
| 164 | substream->runtime->private_data; |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 165 | struct sst_pcm_params param = {0}; |
| 166 | struct sst_stream_params str_params = {0}; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 167 | int ret_val; |
| 168 | |
| 169 | /* set codec params and inform SST driver the same */ |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 170 | sst_fill_pcm_params(substream, ¶m); |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 171 | substream->runtime->dma_area = substream->dma_buffer.area; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 172 | str_params.sparams = param; |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 173 | str_params.codec = param.codec; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 174 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
| 175 | str_params.ops = STREAM_OPS_PLAYBACK; |
| 176 | str_params.device_type = substream->pcm->device + 1; |
| 177 | pr_debug("Playbck stream,Device %d\n", |
| 178 | substream->pcm->device); |
| 179 | } else { |
| 180 | str_params.ops = STREAM_OPS_CAPTURE; |
| 181 | str_params.device_type = SND_SST_DEVICE_CAPTURE; |
| 182 | pr_debug("Capture stream,Device %d\n", |
| 183 | substream->pcm->device); |
| 184 | } |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 185 | ret_val = stream->ops->open(&str_params); |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 186 | pr_debug("SST_SND_PLAY/CAPTURE ret_val = %x\n", ret_val); |
| 187 | if (ret_val < 0) |
| 188 | return ret_val; |
| 189 | |
| 190 | stream->stream_info.str_id = ret_val; |
| 191 | pr_debug("str id : %d\n", stream->stream_info.str_id); |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 192 | return ret_val; |
| 193 | } |
| 194 | |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 195 | static void sst_period_elapsed(void *mad_substream) |
| 196 | { |
| 197 | struct snd_pcm_substream *substream = mad_substream; |
| 198 | struct sst_runtime_stream *stream; |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 199 | int status; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 200 | |
| 201 | if (!substream || !substream->runtime) |
| 202 | return; |
| 203 | stream = substream->runtime->private_data; |
| 204 | if (!stream) |
| 205 | return; |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 206 | status = sst_get_stream_status(stream); |
| 207 | if (status != SST_PLATFORM_RUNNING) |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 208 | return; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 209 | snd_pcm_period_elapsed(substream); |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 210 | } |
| 211 | |
| 212 | static int sst_platform_init_stream(struct snd_pcm_substream *substream) |
| 213 | { |
| 214 | struct sst_runtime_stream *stream = |
| 215 | substream->runtime->private_data; |
| 216 | int ret_val; |
| 217 | |
| 218 | pr_debug("setting buffer ptr param\n"); |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 219 | sst_set_stream_status(stream, SST_PLATFORM_INIT); |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 220 | stream->stream_info.period_elapsed = sst_period_elapsed; |
| 221 | stream->stream_info.mad_substream = substream; |
| 222 | stream->stream_info.buffer_ptr = 0; |
| 223 | stream->stream_info.sfreq = substream->runtime->rate; |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 224 | ret_val = stream->ops->device_control( |
Harsha Priya | a211701 | 2011-01-11 14:50:59 +0530 | [diff] [blame] | 225 | SST_SND_STREAM_INIT, &stream->stream_info); |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 226 | if (ret_val) |
| 227 | pr_err("control_set ret error %d\n", ret_val); |
| 228 | return ret_val; |
| 229 | |
| 230 | } |
| 231 | /* end -- helper functions */ |
| 232 | |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 233 | static int sst_media_open(struct snd_pcm_substream *substream, |
| 234 | struct snd_soc_dai *dai) |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 235 | { |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 236 | int ret_val = 0; |
Lu Guanqun | 22be504 | 2011-09-06 15:21:38 +0800 | [diff] [blame] | 237 | struct snd_pcm_runtime *runtime = substream->runtime; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 238 | struct sst_runtime_stream *stream; |
Lu Guanqun | 22be504 | 2011-09-06 15:21:38 +0800 | [diff] [blame] | 239 | |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 240 | stream = kzalloc(sizeof(*stream), GFP_KERNEL); |
| 241 | if (!stream) |
| 242 | return -ENOMEM; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 243 | spin_lock_init(&stream->status_lock); |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 244 | |
| 245 | /* get the sst ops */ |
| 246 | mutex_lock(&sst_lock); |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 247 | if (!sst || |
| 248 | !try_module_get(sst->dev->driver->owner)) { |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 249 | pr_err("no device available to run\n"); |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 250 | ret_val = -ENODEV; |
| 251 | goto out_ops; |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 252 | } |
| 253 | stream->ops = sst->ops; |
| 254 | mutex_unlock(&sst_lock); |
| 255 | |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 256 | stream->stream_info.str_id = 0; |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 257 | |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 258 | stream->stream_info.mad_substream = substream; |
| 259 | /* allocate memory for SST API set */ |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 260 | runtime->private_data = stream; |
Lu Guanqun | 283e42e | 2011-09-06 15:21:43 +0800 | [diff] [blame] | 261 | |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 262 | /* Make sure, that the period size is always even */ |
| 263 | snd_pcm_hw_constraint_step(substream->runtime, 0, |
| 264 | SNDRV_PCM_HW_PARAM_PERIODS, 2); |
| 265 | |
| 266 | return snd_pcm_hw_constraint_integer(runtime, |
| 267 | SNDRV_PCM_HW_PARAM_PERIODS); |
| 268 | out_ops: |
| 269 | kfree(stream); |
| 270 | mutex_unlock(&sst_lock); |
| 271 | return ret_val; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 272 | } |
| 273 | |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 274 | static void sst_media_close(struct snd_pcm_substream *substream, |
| 275 | struct snd_soc_dai *dai) |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 276 | { |
| 277 | struct sst_runtime_stream *stream; |
| 278 | int ret_val = 0, str_id; |
| 279 | |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 280 | stream = substream->runtime->private_data; |
| 281 | str_id = stream->stream_info.str_id; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 282 | if (str_id) |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 283 | ret_val = stream->ops->close(str_id); |
| 284 | module_put(sst->dev->driver->owner); |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 285 | kfree(stream); |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 286 | return; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 287 | } |
| 288 | |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 289 | static int sst_media_prepare(struct snd_pcm_substream *substream, |
| 290 | struct snd_soc_dai *dai) |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 291 | { |
| 292 | struct sst_runtime_stream *stream; |
| 293 | int ret_val = 0, str_id; |
| 294 | |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 295 | stream = substream->runtime->private_data; |
| 296 | str_id = stream->stream_info.str_id; |
| 297 | if (stream->stream_info.str_id) { |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 298 | ret_val = stream->ops->device_control( |
| 299 | SST_SND_DROP, &str_id); |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 300 | return ret_val; |
| 301 | } |
| 302 | |
| 303 | ret_val = sst_platform_alloc_stream(substream); |
| 304 | if (ret_val < 0) |
| 305 | return ret_val; |
| 306 | snprintf(substream->pcm->id, sizeof(substream->pcm->id), |
| 307 | "%d", stream->stream_info.str_id); |
| 308 | |
| 309 | ret_val = sst_platform_init_stream(substream); |
| 310 | if (ret_val) |
| 311 | return ret_val; |
| 312 | substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER; |
| 313 | return ret_val; |
| 314 | } |
| 315 | |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 316 | static int sst_media_hw_params(struct snd_pcm_substream *substream, |
| 317 | struct snd_pcm_hw_params *params, |
| 318 | struct snd_soc_dai *dai) |
| 319 | { |
| 320 | snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); |
| 321 | memset(substream->runtime->dma_area, 0, params_buffer_bytes(params)); |
| 322 | return 0; |
| 323 | } |
| 324 | |
| 325 | static int sst_media_hw_free(struct snd_pcm_substream *substream, |
| 326 | struct snd_soc_dai *dai) |
| 327 | { |
| 328 | return snd_pcm_lib_free_pages(substream); |
| 329 | } |
| 330 | |
| 331 | static struct snd_soc_dai_ops sst_media_dai_ops = { |
| 332 | .startup = sst_media_open, |
| 333 | .shutdown = sst_media_close, |
| 334 | .prepare = sst_media_prepare, |
| 335 | .hw_params = sst_media_hw_params, |
| 336 | .hw_free = sst_media_hw_free, |
| 337 | }; |
| 338 | |
| 339 | static int sst_platform_open(struct snd_pcm_substream *substream) |
| 340 | { |
| 341 | struct snd_pcm_runtime *runtime; |
| 342 | |
| 343 | if (substream->pcm->internal) |
| 344 | return 0; |
| 345 | |
| 346 | runtime = substream->runtime; |
| 347 | runtime->hw = sst_platform_pcm_hw; |
| 348 | return 0; |
| 349 | } |
| 350 | |
Vinod Koul | 5106f5a | 2014-05-15 21:38:15 +0530 | [diff] [blame] | 351 | static int sst_platform_pcm_trigger(struct snd_pcm_substream *substream, |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 352 | int cmd) |
| 353 | { |
| 354 | int ret_val = 0, str_id; |
| 355 | struct sst_runtime_stream *stream; |
Harsha Priya | a211701 | 2011-01-11 14:50:59 +0530 | [diff] [blame] | 356 | int str_cmd, status; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 357 | |
Vinod Koul | 5106f5a | 2014-05-15 21:38:15 +0530 | [diff] [blame] | 358 | pr_debug("sst_platform_pcm_trigger called\n"); |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 359 | stream = substream->runtime->private_data; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 360 | str_id = stream->stream_info.str_id; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 361 | switch (cmd) { |
| 362 | case SNDRV_PCM_TRIGGER_START: |
| 363 | pr_debug("sst: Trigger Start\n"); |
Harsha Priya | a211701 | 2011-01-11 14:50:59 +0530 | [diff] [blame] | 364 | str_cmd = SST_SND_START; |
| 365 | status = SST_PLATFORM_RUNNING; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 366 | stream->stream_info.mad_substream = substream; |
| 367 | break; |
| 368 | case SNDRV_PCM_TRIGGER_STOP: |
| 369 | pr_debug("sst: in stop\n"); |
Harsha Priya | a211701 | 2011-01-11 14:50:59 +0530 | [diff] [blame] | 370 | str_cmd = SST_SND_DROP; |
| 371 | status = SST_PLATFORM_DROPPED; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 372 | break; |
| 373 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
| 374 | pr_debug("sst: in pause\n"); |
Harsha Priya | a211701 | 2011-01-11 14:50:59 +0530 | [diff] [blame] | 375 | str_cmd = SST_SND_PAUSE; |
| 376 | status = SST_PLATFORM_PAUSED; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 377 | break; |
| 378 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
| 379 | pr_debug("sst: in pause release\n"); |
Harsha Priya | a211701 | 2011-01-11 14:50:59 +0530 | [diff] [blame] | 380 | str_cmd = SST_SND_RESUME; |
| 381 | status = SST_PLATFORM_RUNNING; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 382 | break; |
| 383 | default: |
Harsha Priya | a211701 | 2011-01-11 14:50:59 +0530 | [diff] [blame] | 384 | return -EINVAL; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 385 | } |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 386 | ret_val = stream->ops->device_control(str_cmd, &str_id); |
Harsha Priya | a211701 | 2011-01-11 14:50:59 +0530 | [diff] [blame] | 387 | if (!ret_val) |
| 388 | sst_set_stream_status(stream, status); |
| 389 | |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 390 | return ret_val; |
| 391 | } |
| 392 | |
| 393 | |
Vinod Koul | 5106f5a | 2014-05-15 21:38:15 +0530 | [diff] [blame] | 394 | static snd_pcm_uframes_t sst_platform_pcm_pointer |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 395 | (struct snd_pcm_substream *substream) |
| 396 | { |
| 397 | struct sst_runtime_stream *stream; |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 398 | int ret_val, status; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 399 | struct pcm_stream_info *str_info; |
| 400 | |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 401 | stream = substream->runtime->private_data; |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 402 | status = sst_get_stream_status(stream); |
| 403 | if (status == SST_PLATFORM_INIT) |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 404 | return 0; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 405 | str_info = &stream->stream_info; |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 406 | ret_val = stream->ops->device_control( |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 407 | SST_SND_BUFFER_POINTER, str_info); |
| 408 | if (ret_val) { |
| 409 | pr_err("sst: error code = %d\n", ret_val); |
| 410 | return ret_val; |
| 411 | } |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 412 | return str_info->buffer_ptr; |
xingchao | 9ab8843 | 2011-04-27 16:58:54 -0400 | [diff] [blame] | 413 | } |
| 414 | |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 415 | static struct snd_pcm_ops sst_platform_ops = { |
Vinod Koul | 5106f5a | 2014-05-15 21:38:15 +0530 | [diff] [blame] | 416 | .open = sst_platform_open, |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 417 | .ioctl = snd_pcm_lib_ioctl, |
Vinod Koul | 5106f5a | 2014-05-15 21:38:15 +0530 | [diff] [blame] | 418 | .trigger = sst_platform_pcm_trigger, |
| 419 | .pointer = sst_platform_pcm_pointer, |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 420 | }; |
| 421 | |
| 422 | static void sst_pcm_free(struct snd_pcm *pcm) |
| 423 | { |
| 424 | pr_debug("sst_pcm_free called\n"); |
| 425 | snd_pcm_lib_preallocate_free_for_all(pcm); |
| 426 | } |
| 427 | |
Axel Lin | 8faa8c1 | 2011-12-13 17:13:45 +0800 | [diff] [blame] | 428 | static int sst_pcm_new(struct snd_soc_pcm_runtime *rtd) |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 429 | { |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 430 | struct snd_soc_dai *dai = rtd->cpu_dai; |
Liam Girdwood | 552d1ef | 2011-06-07 16:08:33 +0100 | [diff] [blame] | 431 | struct snd_pcm *pcm = rtd->pcm; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 432 | int retval = 0; |
| 433 | |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 434 | if (dai->driver->playback.channels_min || |
| 435 | dai->driver->capture.channels_min) { |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 436 | retval = snd_pcm_lib_preallocate_pages_for_all(pcm, |
| 437 | SNDRV_DMA_TYPE_CONTINUOUS, |
Vinod Koul | 6cc0f4e | 2014-06-13 18:03:51 +0530 | [diff] [blame^] | 438 | snd_dma_continuous_data(GFP_DMA), |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 439 | SST_MIN_BUFFER, SST_MAX_BUFFER); |
| 440 | if (retval) { |
| 441 | pr_err("dma buffer allocationf fail\n"); |
| 442 | return retval; |
| 443 | } |
| 444 | } |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 445 | return retval; |
| 446 | } |
Vinod Koul | c514a91 | 2012-08-16 17:10:42 +0530 | [diff] [blame] | 447 | |
Axel Lin | 8faa8c1 | 2011-12-13 17:13:45 +0800 | [diff] [blame] | 448 | static struct snd_soc_platform_driver sst_soc_platform_drv = { |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 449 | .ops = &sst_platform_ops, |
Vinod Koul | c514a91 | 2012-08-16 17:10:42 +0530 | [diff] [blame] | 450 | .compr_ops = &sst_platform_compr_ops, |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 451 | .pcm_new = sst_pcm_new, |
| 452 | .pcm_free = sst_pcm_free, |
| 453 | }; |
| 454 | |
Vinod Koul | 2b4c78d | 2014-05-05 22:19:25 +0530 | [diff] [blame] | 455 | static const struct snd_soc_component_driver sst_component = { |
| 456 | .name = "sst", |
| 457 | }; |
| 458 | |
| 459 | |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 460 | static int sst_platform_probe(struct platform_device *pdev) |
| 461 | { |
| 462 | int ret; |
| 463 | |
| 464 | pr_debug("sst_platform_probe called\n"); |
Vinod Koul | 03c3304 | 2011-12-05 19:13:41 +0530 | [diff] [blame] | 465 | sst = NULL; |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 466 | ret = snd_soc_register_platform(&pdev->dev, &sst_soc_platform_drv); |
| 467 | if (ret) { |
| 468 | pr_err("registering soc platform failed\n"); |
| 469 | return ret; |
| 470 | } |
Harsha Priya | 5c68536 | 2011-01-11 14:50:35 +0530 | [diff] [blame] | 471 | |
Kuninori Morimoto | b1c3686 | 2013-03-21 03:32:50 -0700 | [diff] [blame] | 472 | ret = snd_soc_register_component(&pdev->dev, &sst_component, |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 473 | sst_platform_dai, ARRAY_SIZE(sst_platform_dai)); |
| 474 | if (ret) { |
| 475 | pr_err("registering cpu dais failed\n"); |
| 476 | snd_soc_unregister_platform(&pdev->dev); |
| 477 | } |
| 478 | return ret; |
| 479 | } |
| 480 | |
| 481 | static int sst_platform_remove(struct platform_device *pdev) |
| 482 | { |
| 483 | |
Kuninori Morimoto | b1c3686 | 2013-03-21 03:32:50 -0700 | [diff] [blame] | 484 | snd_soc_unregister_component(&pdev->dev); |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 485 | snd_soc_unregister_platform(&pdev->dev); |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 486 | pr_debug("sst_platform_remove success\n"); |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 487 | return 0; |
| 488 | } |
| 489 | |
| 490 | static struct platform_driver sst_platform_driver = { |
| 491 | .driver = { |
Mark Brown | a4b1299 | 2014-03-12 23:04:35 +0000 | [diff] [blame] | 492 | .name = "sst-mfld-platform", |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 493 | .owner = THIS_MODULE, |
| 494 | }, |
| 495 | .probe = sst_platform_probe, |
| 496 | .remove = sst_platform_remove, |
| 497 | }; |
| 498 | |
Axel Lin | 29515d6 | 2011-11-24 11:51:56 +0800 | [diff] [blame] | 499 | module_platform_driver(sst_platform_driver); |
Vinod Koul | d927fda | 2011-01-04 20:16:32 +0530 | [diff] [blame] | 500 | |
| 501 | MODULE_DESCRIPTION("ASoC Intel(R) MID Platform driver"); |
| 502 | MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>"); |
| 503 | MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>"); |
| 504 | MODULE_LICENSE("GPL v2"); |
Mark Brown | a4b1299 | 2014-03-12 23:04:35 +0000 | [diff] [blame] | 505 | MODULE_ALIAS("platform:sst-mfld-platform"); |