From 3d4758299fa6180ff9304634c67ffdd44272c8e8 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 19 Dec 2008 12:13:18 +0100 Subject: ALSA: ca0106 - Add IEC958 PCM Stream controls Added "IEC958 PCM Stream" controls for the per-stream IEC958 status bits. Using this instead of "IEC958 Default" is safer since the status bits will be recovered to the default states after closing the PCM stream. Signed-off-by: Takashi Iwai --- sound/pci/ca0106/ca0106_mixer.c | 83 ++++++++++++++++++++++++++++++++--------- 1 file changed, 66 insertions(+), 17 deletions(-) (limited to 'sound/pci/ca0106/ca0106_mixer.c') diff --git a/sound/pci/ca0106/ca0106_mixer.c b/sound/pci/ca0106/ca0106_mixer.c index cccc32cdb943..8727881a10b8 100644 --- a/sound/pci/ca0106/ca0106_mixer.c +++ b/sound/pci/ca0106/ca0106_mixer.c @@ -148,7 +148,7 @@ static void ca0106_set_capture_mic_line_in(struct snd_ca0106 *emu) static void ca0106_set_spdif_bits(struct snd_ca0106 *emu, int idx) { - snd_ca0106_ptr_write(emu, SPCS0 + idx, 0, emu->spdif_bits[idx]); + snd_ca0106_ptr_write(emu, SPCS0 + idx, 0, emu->spdif_str_bits[idx]); } /* @@ -353,16 +353,33 @@ static int snd_ca0106_spdif_info(struct snd_kcontrol *kcontrol, return 0; } -static int snd_ca0106_spdif_get(struct snd_kcontrol *kcontrol, +static void decode_spdif_bits(unsigned char *status, unsigned int bits) +{ + status[0] = (bits >> 0) & 0xff; + status[1] = (bits >> 8) & 0xff; + status[2] = (bits >> 16) & 0xff; + status[3] = (bits >> 24) & 0xff; +} + +static int snd_ca0106_spdif_get_default(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol); unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); - ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff; - ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff; - ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff; - ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff; + decode_spdif_bits(ucontrol->value.iec958.status, + emu->spdif_bits[idx]); + return 0; +} + +static int snd_ca0106_spdif_get_stream(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol); + unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); + + decode_spdif_bits(ucontrol->value.iec958.status, + emu->spdif_str_bits[idx]); return 0; } @@ -376,24 +393,48 @@ static int snd_ca0106_spdif_get_mask(struct snd_kcontrol *kcontrol, return 0; } -static int snd_ca0106_spdif_put(struct snd_kcontrol *kcontrol, +static unsigned int encode_spdif_bits(unsigned char *status) +{ + return ((unsigned int)status[0] << 0) | + ((unsigned int)status[1] << 8) | + ((unsigned int)status[2] << 16) | + ((unsigned int)status[3] << 24); +} + +static int snd_ca0106_spdif_put_default(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol); unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); - int change; unsigned int val; - val = (ucontrol->value.iec958.status[0] << 0) | - (ucontrol->value.iec958.status[1] << 8) | - (ucontrol->value.iec958.status[2] << 16) | - (ucontrol->value.iec958.status[3] << 24); - change = val != emu->spdif_bits[idx]; - if (change) { + val = encode_spdif_bits(ucontrol->value.iec958.status); + if (val != emu->spdif_bits[idx]) { emu->spdif_bits[idx] = val; + /* FIXME: this isn't safe, but needed to keep the compatibility + * with older alsa-lib config + */ + emu->spdif_str_bits[idx] = val; ca0106_set_spdif_bits(emu, idx); + return 1; } - return change; + return 0; +} + +static int snd_ca0106_spdif_put_stream(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol); + unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); + unsigned int val; + + val = encode_spdif_bits(ucontrol->value.iec958.status); + if (val != emu->spdif_str_bits[idx]) { + emu->spdif_str_bits[idx] = val; + ca0106_set_spdif_bits(emu, idx); + return 1; + } + return 0; } static int snd_ca0106_volume_info(struct snd_kcontrol *kcontrol, @@ -604,8 +645,16 @@ static struct snd_kcontrol_new snd_ca0106_volume_ctls[] __devinitdata = { .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT), .count = 4, .info = snd_ca0106_spdif_info, - .get = snd_ca0106_spdif_get, - .put = snd_ca0106_spdif_put + .get = snd_ca0106_spdif_get_default, + .put = snd_ca0106_spdif_put_default + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM), + .count = 4, + .info = snd_ca0106_spdif_info, + .get = snd_ca0106_spdif_get_stream, + .put = snd_ca0106_spdif_put_stream }, }; -- cgit v1.2.2