From 755c48abd8ec228a9e3c3bf9b36850ef5a12cc9c Mon Sep 17 00:00:00 2001 From: Timofei Bondarenko Date: Wed, 31 Oct 2007 17:36:20 +0100 Subject: [PATCH] [ALSA] cmipci at 96kHz This patch adds support for 88.2k, 96k, and 128k samplerates on cmi8738-55 chip. Analog playback works fine on all channels. Analog capture works well too, though the extra samples seems interpolated by hardware. spdif playback and capture works fine. Signed-off-by: Timofei Bondarenko Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/pci/cmipci.c | 83 +++++++++++++++++++++++++++++++++++----------- 1 file changed, 64 insertions(+), 19 deletions(-) diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c index 1fa5f004e858..3a2d942f22bb 100644 --- a/sound/pci/cmipci.c +++ b/sound/pci/cmipci.c @@ -150,6 +150,8 @@ MODULE_PARM_DESC(joystick_port, "Joystick port address."); #define CM_CH0_SRATE_176K 0x00000200 #define CM_CH0_SRATE_96K 0x00000200 /* model 055? */ #define CM_CH0_SRATE_88K 0x00000100 +#define CM_CH0_SRATE_128K 0x00000300 +#define CM_CH0_SRATE_MASK 0x00000300 #define CM_SPDIF_INVERSE2 0x00000080 /* model 055? */ #define CM_DBLSPDS 0x00000040 /* double SPDIF sample rate 88.2/96 */ @@ -473,6 +475,7 @@ struct cmipci { unsigned int can_ac3_sw: 1; unsigned int can_ac3_hw: 1; unsigned int can_multi_ch: 1; + unsigned int can_96k: 1; /* samplerate above 48k */ unsigned int do_soft_ac3: 1; unsigned int spdif_playback_avail: 1; /* spdif ready? */ @@ -603,8 +606,6 @@ static unsigned int snd_cmipci_rate_freq(unsigned int rate) { unsigned int i; - if (rate > 48000) - rate /= 2; for (i = 0; i < ARRAY_SIZE(rates); i++) { if (rates[i] == rate) return i; @@ -782,7 +783,7 @@ static int set_dac_channels(struct cmipci *cm, struct cmipci_pcm *rec, int chann static int snd_cmipci_pcm_prepare(struct cmipci *cm, struct cmipci_pcm *rec, struct snd_pcm_substream *substream) { - unsigned int reg, freq, val; + unsigned int reg, freq, freq_ext, val; unsigned int period_size; struct snd_pcm_runtime *runtime = substream->runtime; @@ -830,7 +831,17 @@ static int snd_cmipci_pcm_prepare(struct cmipci *cm, struct cmipci_pcm *rec, //snd_printd("cmipci: functrl0 = %08x\n", cm->ctrl); /* set sample rate */ - freq = snd_cmipci_rate_freq(runtime->rate); + freq = 0; + freq_ext = 0; + if (runtime->rate > 48000) + switch (runtime->rate) { + case 88200: freq_ext = CM_CH0_SRATE_88K; break; + case 96000: freq_ext = CM_CH0_SRATE_96K; break; + case 128000: freq_ext = CM_CH0_SRATE_128K; break; + default: snd_BUG(); break; + } + else + freq = snd_cmipci_rate_freq(runtime->rate); val = snd_cmipci_read(cm, CM_REG_FUNCTRL1); if (rec->ch) { val &= ~CM_DSFC_MASK; @@ -851,15 +862,9 @@ static int snd_cmipci_pcm_prepare(struct cmipci *cm, struct cmipci_pcm *rec, val &= ~CM_CH0FMT_MASK; val |= rec->fmt << CM_CH0FMT_SHIFT; } - if (cm->chip_version == 68) { - if (runtime->rate == 88200) - val |= CM_CH0_SRATE_88K << (rec->ch * 2); - else - val &= ~(CM_CH0_SRATE_88K << (rec->ch * 2)); - if (runtime->rate == 96000) - val |= CM_CH0_SRATE_96K << (rec->ch * 2); - else - val &= ~(CM_CH0_SRATE_96K << (rec->ch * 2)); + if (cm->can_96k) { + val &= ~(CM_CH0_SRATE_MASK << (rec->ch * 2)); + val |= freq_ext << (rec->ch * 2); } snd_cmipci_write(cm, CM_REG_CHFORMAT, val); //snd_printd("cmipci: chformat = %08x\n", val); @@ -1280,7 +1285,7 @@ static int snd_cmipci_playback_prepare(struct snd_pcm_substream *substream) int rate = substream->runtime->rate; int err, do_spdif, do_ac3 = 0; - do_spdif = (rate >= 44100 && + do_spdif = (rate >= 44100 && rate <= 96000 && substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE && substream->runtime->channels == 2); if (do_spdif && cm->can_ac3_hw) @@ -1336,10 +1341,8 @@ static void snd_cmipci_silence_hack(struct cmipci *cm, struct cmipci_pcm *rec) val = snd_cmipci_read(cm, CM_REG_CHFORMAT); val &= ~(CM_CH0FMT_MASK << (rec->ch * 2)); val |= (3 << CM_CH0FMT_SHIFT) << (rec->ch * 2); - if (cm->chip_version == 68) { - val &= ~(CM_CH0_SRATE_88K << (rec->ch * 2)); - val &= ~(CM_CH0_SRATE_96K << (rec->ch * 2)); - } + if (cm->can_96k) + val &= ~(CM_CH0_SRATE_MASK << (rec->ch * 2)); snd_cmipci_write(cm, CM_REG_CHFORMAT, val); /* start stream (we don't need interrupts) */ @@ -1391,6 +1394,12 @@ static int snd_cmipci_capture_spdif_prepare(struct snd_pcm_substream *substream) spin_lock_irq(&cm->reg_lock); snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_CAPTURE_SPDF); + if (cm->can_96k) { + if (substream->runtime->rate > 48000) + snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_DBLSPDS); + else + snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_DBLSPDS); + } spin_unlock_irq(&cm->reg_lock); return snd_cmipci_pcm_prepare(cm, &cm->channel[CM_CH_CAPT], substream); @@ -1567,6 +1576,14 @@ static struct snd_pcm_hardware snd_cmipci_capture_spdif = .fifo_size = 0, }; +static unsigned int rate_constraints[] = { 5512, 8000, 11025, 16000, 22050, + 32000, 44100, 48000, 88200, 96000, 128000 }; +static struct snd_pcm_hw_constraint_list hw_constraints_rates = { + .count = ARRAY_SIZE(rate_constraints), + .list = rate_constraints, + .mask = 0, +}; + /* * check device open/close */ @@ -1636,6 +1653,13 @@ static int snd_cmipci_playback_open(struct snd_pcm_substream *substream) runtime->hw.rates |= SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000; runtime->hw.rate_max = 96000; + } else if (cm->chip_version == 55) { + err = snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates); + if (err < 0) + return err; + runtime->hw.rates |= SNDRV_PCM_RATE_KNOT; + runtime->hw.rate_max = 128000; } snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000); cm->dig_pcm_status = cm->dig_status; @@ -1654,6 +1678,13 @@ static int snd_cmipci_capture_open(struct snd_pcm_substream *substream) if (cm->chip_version == 68) { // 8768 only supports 44k/48k recording runtime->hw.rate_min = 41000; runtime->hw.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000; + } else if (cm->chip_version == 55) { + err = snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates); + if (err < 0) + return err; + runtime->hw.rates |= SNDRV_PCM_RATE_KNOT; + runtime->hw.rate_max = 128000; } snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000); return 0; @@ -1685,6 +1716,13 @@ static int snd_cmipci_playback2_open(struct snd_pcm_substream *substream) runtime->hw.rates |= SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000; runtime->hw.rate_max = 96000; + } else if (cm->chip_version == 55) { + err = snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates); + if (err < 0) + return err; + runtime->hw.rates |= SNDRV_PCM_RATE_KNOT; + runtime->hw.rate_max = 128000; } snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x10000); return 0; @@ -1704,7 +1742,7 @@ static int snd_cmipci_playback_spdif_open(struct snd_pcm_substream *substream) runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE; snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24); } - if (cm->chip_version == 68) { + if (cm->can_96k) { runtime->hw.rates |= SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000; runtime->hw.rate_max = 96000; @@ -1726,6 +1764,11 @@ static int snd_cmipci_capture_spdif_open(struct snd_pcm_substream *substream) if ((err = open_device_check(cm, CM_OPEN_SPDIF_CAPTURE, substream)) < 0) /* use channel B */ return err; runtime->hw = snd_cmipci_capture_spdif; + if (cm->can_96k && !(cm->chip_version == 68)) { + runtime->hw.rates |= SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000; + runtime->hw.rate_max = 96000; + } snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 0x40000); return 0; } @@ -2785,9 +2828,11 @@ static void __devinit query_chip(struct cmipci *cm) } else if (detect & CM_CHIP_8768) { cm->chip_version = 68; cm->max_channels = 8; + cm->can_96k = 1; } else { cm->chip_version = 55; cm->max_channels = 6; + cm->can_96k = 1; } cm->can_ac3_hw = 1; cm->can_multi_ch = 1; -- 2.30.2