[ALSA] cmipci: add 96 kHz support
Clemens Ladisch [Mon, 3 Sep 2007 07:54:55 +0000 (09:54 +0200)]
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>

sound/pci/cmipci.c

index 6d3a0ab..af266eb 100644 (file)
@@ -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;
        }