[ALSA] cmipci: add 96 kHz support

Add support for 88.2 kHz and 96 kHz analog and digital playback on
CMI8768/CMI8770 chips.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 35 insertions, 3 deletions

diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c
index 6d3a0abadd75..af266eb83059 100644
--- a/sound/pci/cmipci.c
+++ b/sound/pci/cmipci.c
@@ -135,11 +135,14 @@ MODULE_PARM_DESC(joystick_port, "Joystick port address.");
 #define CM_ADCDACLEN_280        0x00003000
 
 #define CM_CH1_SRATE_176K       0x00000800
+#define CM_CH1_SRATE_96K        0x00000800      /* model 055? */
 #define CM_CH1_SRATE_88K        0x00000400
 #define CM_CH0_SRATE_176K       0x00000200
+#define CM_CH0_SRATE_96K        0x00000200      /* model 055? */
 #define CM_CH0_SRATE_88K        0x00000100
 
 #define CM_SPDIF_INVERSE2       0x00000080      /* model 055? */
+#define CM_DBLSPDS              0x00000040
 
 #define CM_CH1FMT_MASK          0x0000000C
 #define CM_CH1FMT_SHIFT         2
@@ -812,6 +815,16 @@ 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));
+        }
         snd_cmipci_write(cm, CM_REG_CHFORMAT, val);
         //snd_printd("cmipci: chformat = %08x\n", val);
 
@@ -1198,15 +1211,19 @@ static int setup_spdif_playback(struct cmipci *cm, struct snd_pcm_substream *sub
                         snd_cmipci_set_bit(cm, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
                 setup_ac3(cm, subs, do_ac3, rate);
 
-                if (rate == 48000)
+                if (rate == 48000 || rate == 96000)
                         snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_SPDIF48K | CM_SPDF_AC97);
                 else
                         snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_SPDIF48K | CM_SPDF_AC97);
-
+                if (rate > 48000)
+                        snd_cmipci_set_bit(cm, CM_REG_CHFORMAT, CM_DBLSPDS);
+                else
+                        snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_DBLSPDS);
         } else {
                 /* they are controlled via "IEC958 Output Switch" */
                 /* snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_ENSPDOUT); */
                 /* snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_SPDO2DAC); */
+                snd_cmipci_clear_bit(cm, CM_REG_CHFORMAT, CM_DBLSPDS);
                 snd_cmipci_clear_bit(cm, CM_REG_FUNCTRL1, CM_PLAYBACK_SPDF);
                 setup_ac3(cm, subs, 0, 0);
         }
@@ -1226,7 +1243,7 @@ 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 || rate == 48000) &&
+        do_spdif = (rate >= 44100 &&
                     substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE &&
                     substream->runtime->channels == 2);
         if (do_spdif && cm->can_ac3_hw) 
@@ -1514,6 +1531,11 @@ static int snd_cmipci_playback_open(struct snd_pcm_substream *substream)
         if ((err = open_device_check(cm, CM_OPEN_PLAYBACK, substream)) < 0)
                 return err;
         runtime->hw = snd_cmipci_playback;
+        if (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, 0x10000);
         cm->dig_pcm_status = cm->dig_status;
         return 0;
@@ -1556,6 +1578,11 @@ static int snd_cmipci_playback2_open(struct snd_pcm_substream *substream)
                         else if (cm->max_channels == 8)
                                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels_8);
                 }
+                if (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, 0x10000);
         }
         mutex_unlock(&cm->open_mutex);
@@ -1574,6 +1601,11 @@ static int snd_cmipci_playback_spdif_open(struct snd_pcm_substream *substream)
                 runtime->hw = snd_cmipci_playback_spdif;
                 if (cm->chip_version >= 37)
                         runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
+                if (cm->chip_version == 68) {
+                        runtime->hw.rates |= SNDRV_PCM_RATE_88200 |
+                                             SNDRV_PCM_RATE_96000;
+                        runtime->hw.rate_max = 96000;
+                }
         } else {
                 runtime->hw = snd_cmipci_playback_iec958_subframe;
         }