target/linux/brcm2708/patches-4.19/950-0468-bcm2835-pcm.c-Support-multichannel-audio.patch

   1 From 69d7e7d0f958186a0f7667ebeefdb50d1c5c3bd3 Mon Sep 17 00:00:00 2001
   2 From: popcornmix <popcornmix@gmail.com>
   3 Date: Tue, 30 Apr 2019 19:15:30 +0100
   4 Subject: [PATCH] bcm2835-pcm.c: Support multichannel audio
   5
   6 ---
   7  .../vc04_services/bcm2835-audio/bcm2835-pcm.c   | 17 +++++++++--------
   8  1 file changed, 9 insertions(+), 8 deletions(-)
   9
  10 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
  11 +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
  12 @@ -14,9 +14,9 @@ static const struct snd_pcm_hardware snd
  13                  SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
  14                  SNDRV_PCM_INFO_DRAIN_TRIGGER | SNDRV_PCM_INFO_SYNC_APPLPTR),
  15         .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
  16 -       .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
  17 +       .rates = SNDRV_PCM_RATE_CONTINUOUS |  SNDRV_PCM_RATE_8000_192000,
  18         .rate_min = 8000,
  19 -       .rate_max = 48000,
  20 +       .rate_max = 192000,
  21         .channels_min = 1,
  22         .channels_max = 2,
  23         .buffer_bytes_max = 128 * 1024,
  24 @@ -31,15 +31,16 @@ static const struct snd_pcm_hardware snd
  25                  SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
  26                  SNDRV_PCM_INFO_DRAIN_TRIGGER | SNDRV_PCM_INFO_SYNC_APPLPTR),
  27         .formats = SNDRV_PCM_FMTBIT_S16_LE,
  28 -       .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_44100 |
  29 -       SNDRV_PCM_RATE_48000,
  30 +       .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
  31 +       SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
  32 +       SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
  33         .rate_min = 44100,
  34 -       .rate_max = 48000,
  35 +       .rate_max = 192000,
  36         .channels_min = 2,
  37 -       .channels_max = 2,
  38 -       .buffer_bytes_max = 128 * 1024,
  39 +       .channels_max = 8,
  40 +       .buffer_bytes_max = 512 * 1024,
  41         .period_bytes_min = 1 * 1024,
  42 -       .period_bytes_max = 128 * 1024,
  43 +       .period_bytes_max = 512 * 1024,
  44         .periods_min = 1,
  45         .periods_max = 128,
  46  };