ALSA: pcm: add SNDRV_PCM_FORMAT_{S,U}20
This format is similar to existing SNDRV_PCM_FORMAT_{S,U}20_3 that keep 20-bit PCM samples in 3 bytes, however i.MX6 platform SSI FIFO does not allow 3-byte accesses (including DMA) so a 4-byte (more conventional) format is needed for it. Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -169,6 +169,10 @@ struct snd_pcm_ops {
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#define SNDRV_PCM_FMTBIT_IMA_ADPCM _SNDRV_PCM_FMTBIT(IMA_ADPCM)
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#define SNDRV_PCM_FMTBIT_MPEG _SNDRV_PCM_FMTBIT(MPEG)
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#define SNDRV_PCM_FMTBIT_GSM _SNDRV_PCM_FMTBIT(GSM)
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#define SNDRV_PCM_FMTBIT_S20_LE _SNDRV_PCM_FMTBIT(S20_LE)
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#define SNDRV_PCM_FMTBIT_U20_LE _SNDRV_PCM_FMTBIT(U20_LE)
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#define SNDRV_PCM_FMTBIT_S20_BE _SNDRV_PCM_FMTBIT(S20_BE)
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#define SNDRV_PCM_FMTBIT_U20_BE _SNDRV_PCM_FMTBIT(U20_BE)
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#define SNDRV_PCM_FMTBIT_SPECIAL _SNDRV_PCM_FMTBIT(SPECIAL)
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#define SNDRV_PCM_FMTBIT_S24_3LE _SNDRV_PCM_FMTBIT(S24_3LE)
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#define SNDRV_PCM_FMTBIT_U24_3LE _SNDRV_PCM_FMTBIT(U24_3LE)
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@ -202,6 +206,8 @@ struct snd_pcm_ops {
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#define SNDRV_PCM_FMTBIT_FLOAT SNDRV_PCM_FMTBIT_FLOAT_LE
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#define SNDRV_PCM_FMTBIT_FLOAT64 SNDRV_PCM_FMTBIT_FLOAT64_LE
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#define SNDRV_PCM_FMTBIT_IEC958_SUBFRAME SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE
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#define SNDRV_PCM_FMTBIT_S20 SNDRV_PCM_FMTBIT_S20_LE
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#define SNDRV_PCM_FMTBIT_U20 SNDRV_PCM_FMTBIT_U20_LE
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#endif
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#ifdef SNDRV_BIG_ENDIAN
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#define SNDRV_PCM_FMTBIT_S16 SNDRV_PCM_FMTBIT_S16_BE
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@ -213,6 +219,8 @@ struct snd_pcm_ops {
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#define SNDRV_PCM_FMTBIT_FLOAT SNDRV_PCM_FMTBIT_FLOAT_BE
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#define SNDRV_PCM_FMTBIT_FLOAT64 SNDRV_PCM_FMTBIT_FLOAT64_BE
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#define SNDRV_PCM_FMTBIT_IEC958_SUBFRAME SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE
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#define SNDRV_PCM_FMTBIT_S20 SNDRV_PCM_FMTBIT_S20_BE
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#define SNDRV_PCM_FMTBIT_U20 SNDRV_PCM_FMTBIT_U20_BE
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#endif
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struct snd_pcm_file {
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@ -102,6 +102,8 @@ struct snd_compr_stream;
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SNDRV_PCM_FMTBIT_S16_BE |\
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SNDRV_PCM_FMTBIT_S20_3LE |\
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SNDRV_PCM_FMTBIT_S20_3BE |\
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SNDRV_PCM_FMTBIT_S20_LE |\
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SNDRV_PCM_FMTBIT_S20_BE |\
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SNDRV_PCM_FMTBIT_S24_3LE |\
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SNDRV_PCM_FMTBIT_S24_3BE |\
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SNDRV_PCM_FMTBIT_S32_LE |\
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@ -214,6 +214,11 @@ typedef int __bitwise snd_pcm_format_t;
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#define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22)
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#define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23)
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#define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24)
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#define SNDRV_PCM_FORMAT_S20_LE ((__force snd_pcm_format_t) 25) /* in four bytes, LSB justified */
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#define SNDRV_PCM_FORMAT_S20_BE ((__force snd_pcm_format_t) 26) /* in four bytes, LSB justified */
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#define SNDRV_PCM_FORMAT_U20_LE ((__force snd_pcm_format_t) 27) /* in four bytes, LSB justified */
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#define SNDRV_PCM_FORMAT_U20_BE ((__force snd_pcm_format_t) 28) /* in four bytes, LSB justified */
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/* gap in the numbering for a future standard linear format */
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#define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31)
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#define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32) /* in three bytes */
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#define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33) /* in three bytes */
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@ -248,6 +253,8 @@ typedef int __bitwise snd_pcm_format_t;
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#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE
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#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE
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#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
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#define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_LE
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#define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_LE
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#endif
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#ifdef SNDRV_BIG_ENDIAN
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#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE
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@ -259,6 +266,8 @@ typedef int __bitwise snd_pcm_format_t;
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#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE
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#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE
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#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
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#define SNDRV_PCM_FORMAT_S20 SNDRV_PCM_FORMAT_S20_BE
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#define SNDRV_PCM_FORMAT_U20 SNDRV_PCM_FORMAT_U20_BE
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#endif
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typedef int __bitwise snd_pcm_subformat_t;
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@ -163,13 +163,30 @@ static struct pcm_format_data pcm_formats[(INT)SNDRV_PCM_FORMAT_LAST+1] = {
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.width = 32, .phys = 32, .le = 0, .signd = 0,
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.silence = { 0x69, 0x69, 0x69, 0x69 },
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},
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/* FIXME: the following three formats are not defined properly yet */
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/* FIXME: the following two formats are not defined properly yet */
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[SNDRV_PCM_FORMAT_MPEG] = {
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.le = -1, .signd = -1,
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},
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[SNDRV_PCM_FORMAT_GSM] = {
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.le = -1, .signd = -1,
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},
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[SNDRV_PCM_FORMAT_S20_LE] = {
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.width = 20, .phys = 32, .le = 1, .signd = 1,
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.silence = {},
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},
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[SNDRV_PCM_FORMAT_S20_BE] = {
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.width = 20, .phys = 32, .le = 0, .signd = 1,
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.silence = {},
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},
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[SNDRV_PCM_FORMAT_U20_LE] = {
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.width = 20, .phys = 32, .le = 1, .signd = 0,
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.silence = { 0x00, 0x00, 0x08, 0x00 },
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},
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[SNDRV_PCM_FORMAT_U20_BE] = {
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.width = 20, .phys = 32, .le = 0, .signd = 0,
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.silence = { 0x00, 0x08, 0x00, 0x00 },
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},
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/* FIXME: the following format is not defined properly yet */
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[SNDRV_PCM_FORMAT_SPECIAL] = {
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.le = -1, .signd = -1,
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},
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