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Diffstat (limited to 'sound/soc/omap/omap-pcm.c')
-rw-r--r--sound/soc/omap/omap-pcm.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index 9db2770e9640..825db385f01f 100644
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -37,7 +37,8 @@ static const struct snd_pcm_hardware omap_pcm_hardware = {
37 SNDRV_PCM_INFO_INTERLEAVED | 37 SNDRV_PCM_INFO_INTERLEAVED |
38 SNDRV_PCM_INFO_PAUSE | 38 SNDRV_PCM_INFO_PAUSE |
39 SNDRV_PCM_INFO_RESUME, 39 SNDRV_PCM_INFO_RESUME,
40 .formats = SNDRV_PCM_FMTBIT_S16_LE, 40 .formats = SNDRV_PCM_FMTBIT_S16_LE |
41 SNDRV_PCM_FMTBIT_S32_LE,
41 .period_bytes_min = 32, 42 .period_bytes_min = 32,
42 .period_bytes_max = 64 * 1024, 43 .period_bytes_max = 64 * 1024,
43 .periods_min = 2, 44 .periods_min = 2,
@@ -149,6 +150,7 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
149 struct omap_runtime_data *prtd = runtime->private_data; 150 struct omap_runtime_data *prtd = runtime->private_data;
150 struct omap_pcm_dma_data *dma_data = prtd->dma_data; 151 struct omap_pcm_dma_data *dma_data = prtd->dma_data;
151 struct omap_dma_channel_params dma_params; 152 struct omap_dma_channel_params dma_params;
153 int bytes;
152 154
153 /* return if this is a bufferless transfer e.g. 155 /* return if this is a bufferless transfer e.g.
154 * codec <--> BT codec or GSM modem -- lg FIXME */ 156 * codec <--> BT codec or GSM modem -- lg FIXME */
@@ -156,11 +158,7 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
156 return 0; 158 return 0;
157 159
158 memset(&dma_params, 0, sizeof(dma_params)); 160 memset(&dma_params, 0, sizeof(dma_params));
159 /* 161 dma_params.data_type = dma_data->data_type;
160 * Note: Regardless of interface data formats supported by OMAP McBSP
161 * or EAC blocks, internal representation is always fixed 16-bit/sample
162 */
163 dma_params.data_type = OMAP_DMA_DATA_TYPE_S16;
164 dma_params.trigger = dma_data->dma_req; 162 dma_params.trigger = dma_data->dma_req;
165 dma_params.sync_mode = dma_data->sync_mode; 163 dma_params.sync_mode = dma_data->sync_mode;
166 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 164 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
@@ -170,6 +168,7 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
170 dma_params.src_start = runtime->dma_addr; 168 dma_params.src_start = runtime->dma_addr;
171 dma_params.dst_start = dma_data->port_addr; 169 dma_params.dst_start = dma_data->port_addr;
172 dma_params.dst_port = OMAP_DMA_PORT_MPUI; 170 dma_params.dst_port = OMAP_DMA_PORT_MPUI;
171 dma_params.dst_fi = dma_data->packet_size;
173 } else { 172 } else {
174 dma_params.src_amode = OMAP_DMA_AMODE_CONSTANT; 173 dma_params.src_amode = OMAP_DMA_AMODE_CONSTANT;
175 dma_params.dst_amode = OMAP_DMA_AMODE_POST_INC; 174 dma_params.dst_amode = OMAP_DMA_AMODE_POST_INC;
@@ -177,6 +176,7 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
177 dma_params.src_start = dma_data->port_addr; 176 dma_params.src_start = dma_data->port_addr;
178 dma_params.dst_start = runtime->dma_addr; 177 dma_params.dst_start = runtime->dma_addr;
179 dma_params.src_port = OMAP_DMA_PORT_MPUI; 178 dma_params.src_port = OMAP_DMA_PORT_MPUI;
179 dma_params.src_fi = dma_data->packet_size;
180 } 180 }
181 /* 181 /*
182 * Set DMA transfer frame size equal to ALSA period size and frame 182 * Set DMA transfer frame size equal to ALSA period size and frame
@@ -184,7 +184,8 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
184 * we can transfer the whole ALSA buffer with single DMA transfer but 184 * we can transfer the whole ALSA buffer with single DMA transfer but
185 * still can get an interrupt at each period bounary 185 * still can get an interrupt at each period bounary
186 */ 186 */
187 dma_params.elem_count = snd_pcm_lib_period_bytes(substream) / 2; 187 bytes = snd_pcm_lib_period_bytes(substream);
188 dma_params.elem_count = bytes >> dma_data->data_type;
188 dma_params.frame_count = runtime->periods; 189 dma_params.frame_count = runtime->periods;
189 omap_set_dma_params(prtd->dma_ch, &dma_params); 190 omap_set_dma_params(prtd->dma_ch, &dma_params);
190 191