14 Jul
2011
14 Jul
'11
6:15 p.m.
2011/7/14 Wolfram Sang w.sang@pengutronix.de:
+static struct snd_pcm_hardware snd_mxs_hardware = {
- .info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_RESUME |
- SNDRV_PCM_INFO_INTERLEAVED,
- .formats = SNDRV_PCM_FMTBIT_S16_LE |
- SNDRV_PCM_FMTBIT_S20_3LE |
- SNDRV_PCM_FMTBIT_S24_LE |
- SNDRV_PCM_FMTBIT_S32_LE,
- .channels_min = 2,
- .channels_max = 2,
- .period_bytes_min = 32,
- .period_bytes_max = 8192,
- .periods_min = 1,
- .periods_max = 255,
When using madplay (for MP3) instead of aplay, I get
[ 3310.010000] mxs-dma mxs-dma-apbx: maximum number of sg exceeded: 128 > 53 [ 3310.020000] dma dma1chan4: cannot prepare slave dma
So, the mxs-dma limit should be taken into account here.
I also have tried a lot on mp3 playing with madplay, however still have not met this issue. Can you tell how can i get the same mp3 as you played? Maybe it helps me to reproduce this issue. I will check it tomorrow. Thanks for the reminder.
- .buffer_bytes_max = 64 * 1024,
- .fifo_size = 32,
+};