[ALSA] Modem support for ALI5451
Sasha Khapyorsky [Mon, 30 May 2005 06:09:56 +0000 (08:09 +0200)]
ALI5451 driver
This patch adds modem support for ali5451. Since it is same pci device
all is done in ali5451.c.

Signed-off-by: Sasha Khapyorsky <sashak@smlink.com>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/pci/ali5451/ali5451.c

index 038f56a..eb5c36d 100644 (file)
@@ -98,6 +98,8 @@ MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
 #define ALI_LEF_CHANNEL                23
 #define ALI_SURR_LEFT_CHANNEL  26
 #define ALI_SURR_RIGHT_CHANNEL 25
+#define ALI_MODEM_IN_CHANNEL    21
+#define ALI_MODEM_OUT_CHANNEL   20
 
 #define        SNDRV_ALI_VOICE_TYPE_PCM        01
 #define SNDRV_ALI_VOICE_TYPE_OTH       02
@@ -122,7 +124,15 @@ MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
 
 #define ALI_SCTRL              0x48
 #define   ALI_SPDIF_OUT_ENABLE         0x20
+#define   ALI_SCTRL_LINE_IN2           (1 << 9)
+#define   ALI_SCTRL_GPIO_IN2           (1 << 13)
+#define   ALI_SCTRL_LINE_OUT_EN        (1 << 20)
+#define   ALI_SCTRL_GPIO_OUT_EN        (1 << 23)
+#define   ALI_SCTRL_CODEC1_READY       (1 << 24)
+#define   ALI_SCTRL_CODEC2_READY       (1 << 25)
 #define ALI_AC97_GPIO          0x4c
+#define   ALI_AC97_GPIO_ENABLE         0x8000
+#define   ALI_AC97_GPIO_DATA_SHIFT     16
 #define ALI_SPDIF_CS           0x70
 #define ALI_SPDIF_CTRL         0x74
 #define   ALI_SPDIF_IN_FUNC_ENABLE     0x02
@@ -143,6 +153,7 @@ MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
        #define TARGET_REACHED          0x00008000
        #define MIXER_OVERFLOW          0x00000800
        #define MIXER_UNDERFLOW         0x00000400
+       #define GPIO_IRQ                0x01000000
 #define ALI_SBBL_SBCL           0xc0
 #define ALI_SBCTRL_SBE2R_SBDD   0xc4
 #define ALI_STIMER             0xc8
@@ -162,6 +173,9 @@ MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
 
 #define ALI_REG(codec, x) ((codec)->port + x)
 
+#define MAX_CODECS 2
+
+
 typedef struct snd_stru_ali ali_t;
 typedef struct snd_ali_stru_voice snd_ali_voice_t;
 
@@ -245,7 +259,7 @@ struct snd_stru_ali {
        struct pci_dev  *pci_m7101;
 
        snd_card_t      *card;
-       snd_pcm_t       *pcm;
+       snd_pcm_t       *pcm[MAX_CODECS];
        alidev_t        synth;
        snd_ali_channel_control_t chregs;
 
@@ -255,8 +269,10 @@ struct snd_stru_ali {
        unsigned int spurious_irq_count;
        unsigned int spurious_irq_max_delta;
 
+       unsigned int num_of_codecs;
+
        ac97_bus_t *ac97_bus;
-       ac97_t *ac97;
+       ac97_t *ac97[MAX_CODECS];
        unsigned short  ac97_ext_id;
        unsigned short  ac97_ext_status;
 
@@ -489,7 +505,12 @@ static void snd_ali_codec_write(ac97_t *ac97,
        ali_t *codec = ac97->private_data;
 
        snd_ali_printk("codec_write: reg=%xh data=%xh.\n", reg, val);
-       snd_ali_codec_poke(codec, 0, reg, val);
+       if(reg == AC97_GPIO_STATUS) {
+               outl((val << ALI_AC97_GPIO_DATA_SHIFT)|ALI_AC97_GPIO_ENABLE,
+                       ALI_REG(codec, ALI_AC97_GPIO));
+               return;
+       }
+       snd_ali_codec_poke(codec, ac97->num, reg, val);
        return ;
 }
 
@@ -499,7 +520,7 @@ static unsigned short snd_ali_codec_read(ac97_t *ac97, unsigned short reg)
        ali_t *codec = ac97->private_data;
 
        snd_ali_printk("codec_read reg=%xh.\n", reg);
-       return (snd_ali_codec_peek(codec, 0, reg));
+       return (snd_ali_codec_peek(codec, ac97->num, reg));
 }
 
 /*
@@ -1051,7 +1072,7 @@ static irqreturn_t snd_ali_card_interrupt(int irq,
 }
 
 
-static snd_ali_voice_t *snd_ali_alloc_voice(ali_t * codec, int type, int rec)
+static snd_ali_voice_t *snd_ali_alloc_voice(ali_t * codec, int type, int rec, int channel)
 {
        snd_ali_voice_t *pvoice = NULL;
        unsigned long flags;
@@ -1061,7 +1082,8 @@ static snd_ali_voice_t *snd_ali_alloc_voice(ali_t * codec, int type, int rec)
 
        spin_lock_irqsave(&codec->voice_alloc, flags);
        if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
-               idx = snd_ali_find_free_channel(codec,rec);
+               idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
+                       snd_ali_find_free_channel(codec,rec);
                if(idx < 0) {
                        snd_printk("ali_alloc_voice: err.\n");
                        spin_unlock_irqrestore(&codec->voice_alloc, flags);
@@ -1297,7 +1319,7 @@ static int snd_ali_playback_hw_params(snd_pcm_substream_t * substream,
 
        if (params_buffer_size(hw_params)/2 != params_period_size(hw_params)) {
                if (evoice == NULL) {
-                       evoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 0);
+                       evoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 0, -1);
                        if (evoice == NULL)
                                return -ENOMEM;
                        pvoice->extra = evoice;
@@ -1328,13 +1350,13 @@ static int snd_ali_playback_hw_free(snd_pcm_substream_t * substream)
        return 0;
 }
 
-static int snd_ali_capture_hw_params(snd_pcm_substream_t * substream,
+static int snd_ali_hw_params(snd_pcm_substream_t * substream,
                                 snd_pcm_hw_params_t * hw_params)
 {
        return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 }
 
-static int snd_ali_capture_hw_free(snd_pcm_substream_t * substream)
+static int snd_ali_hw_free(snd_pcm_substream_t * substream)
 {
        return snd_pcm_lib_free_pages(substream);
 }
@@ -1428,7 +1450,7 @@ static int snd_ali_playback_prepare(snd_pcm_substream_t * substream)
 }
 
 
-static int snd_ali_capture_prepare(snd_pcm_substream_t * substream)
+static int snd_ali_prepare(snd_pcm_substream_t * substream)
 {
        ali_t *codec = snd_pcm_substream_chip(substream);
        snd_pcm_runtime_t *runtime = substream->runtime;
@@ -1446,11 +1468,13 @@ static int snd_ali_capture_prepare(snd_pcm_substream_t * substream)
 
        spin_lock_irqsave(&codec->reg_lock, flags);
 
-       snd_ali_printk("capture_prepare...\n");
+       snd_ali_printk("ali_prepare...\n");
 
        snd_ali_enable_special_channel(codec,pvoice->number);
 
-       Delta = snd_ali_convert_rate(runtime->rate, 1);
+       Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
+                pvoice->number == ALI_MODEM_OUT_CHANNEL) ? 
+               0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
 
        // Prepare capture intr channel
        if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
@@ -1534,7 +1558,7 @@ static snd_pcm_uframes_t snd_ali_playback_pointer(snd_pcm_substream_t *substream
 }
 
 
-static snd_pcm_uframes_t snd_ali_capture_pointer(snd_pcm_substream_t *substream)
+static snd_pcm_uframes_t snd_ali_pointer(snd_pcm_substream_t *substream)
 {
        ali_t *codec = snd_pcm_substream_chip(substream);
        snd_pcm_runtime_t *runtime = substream->runtime;
@@ -1616,7 +1640,8 @@ static void snd_ali_pcm_free_substream(snd_pcm_runtime_t *runtime)
        }
 }
 
-static int snd_ali_playback_open(snd_pcm_substream_t * substream)
+static int snd_ali_open(snd_pcm_substream_t * substream, int rec, int channel,
+               snd_pcm_hardware_t *phw)
 {
        ali_t *codec = snd_pcm_substream_chip(substream);
        snd_pcm_runtime_t *runtime = substream->runtime;
@@ -1624,7 +1649,7 @@ static int snd_ali_playback_open(snd_pcm_substream_t * substream)
        unsigned long flags = 0;
 
        spin_lock_irqsave(&codec->reg_lock, flags);
-       pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 0);
+       pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec, channel);
        if (pvoice == NULL) {
                spin_unlock_irqrestore(&codec->reg_lock, flags);
                return -EAGAIN;
@@ -1636,49 +1661,31 @@ static int snd_ali_playback_open(snd_pcm_substream_t * substream)
        runtime->private_data = pvoice;
        runtime->private_free = snd_ali_pcm_free_substream;
 
-       runtime->hw = snd_ali_playback;
+       runtime->hw = *phw;
        snd_pcm_set_sync(substream);
        snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
        return 0;
 }
 
+static int snd_ali_playback_open(snd_pcm_substream_t * substream)
+{
+       return snd_ali_open(substream, 0, -1, &snd_ali_playback);
+}
 
 static int snd_ali_capture_open(snd_pcm_substream_t * substream)
 {
-       ali_t *codec = snd_pcm_substream_chip(substream);
-       snd_pcm_runtime_t *runtime = substream->runtime;
-       snd_ali_voice_t *pvoice;
-       unsigned long flags;
-
-       spin_lock_irqsave(&codec->reg_lock, flags);
-       pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 1);
-       if (pvoice == NULL) {
-               spin_unlock_irqrestore(&codec->reg_lock, flags);
-               return -EAGAIN;
-       }
-       pvoice->codec = codec;
-       spin_unlock_irqrestore(&codec->reg_lock, flags);
-
-       pvoice->substream = substream;
-       runtime->private_data = pvoice;
-       runtime->private_free = snd_ali_pcm_free_substream;
-       runtime->hw = snd_ali_capture;
-       snd_pcm_set_sync(substream);
-       snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
-       return 0;
+       return snd_ali_open(substream, 1, -1, &snd_ali_capture);
 }
 
-
 static int snd_ali_playback_close(snd_pcm_substream_t * substream)
 {
        return 0;
 }
 
-static int snd_ali_capture_close(snd_pcm_substream_t * substream)
+static int snd_ali_close(snd_pcm_substream_t * substream)
 {
        ali_t *codec = snd_pcm_substream_chip(substream);
-       snd_pcm_runtime_t *runtime = substream->runtime;
-       snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
+       snd_ali_voice_t *pvoice = (snd_ali_voice_t *) substream->runtime->private_data;
 
        snd_ali_disable_special_channel(codec,pvoice->number);
 
@@ -1698,29 +1705,121 @@ static snd_pcm_ops_t snd_ali_playback_ops = {
 
 static snd_pcm_ops_t snd_ali_capture_ops = {
        .open =         snd_ali_capture_open,
-       .close =        snd_ali_capture_close,
+       .close =        snd_ali_close,
        .ioctl =        snd_ali_ioctl,
-       .hw_params =    snd_ali_capture_hw_params,
-       .hw_free =      snd_ali_capture_hw_free,
-       .prepare =      snd_ali_capture_prepare,
+       .hw_params =    snd_ali_hw_params,
+       .hw_free =      snd_ali_hw_free,
+       .prepare =      snd_ali_prepare,
+       .trigger =      snd_ali_trigger,
+       .pointer =      snd_ali_pointer,
+};
+
+/*
+ * Modem PCM
+ */
+
+static int snd_ali_modem_hw_params(snd_pcm_substream_t * substream,
+                                snd_pcm_hw_params_t * hw_params)
+{
+       ali_t *chip = snd_pcm_substream_chip(substream);
+       unsigned int modem_num = chip->num_of_codecs - 1;
+       snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE, params_rate(hw_params));
+       snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
+       return snd_ali_hw_params(substream, hw_params);
+}
+
+static snd_pcm_hardware_t snd_ali_modem =
+{
+       .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+                                SNDRV_PCM_INFO_BLOCK_TRANSFER |
+                                SNDRV_PCM_INFO_MMAP_VALID |
+                                SNDRV_PCM_INFO_RESUME |
+                                SNDRV_PCM_INFO_SYNC_START),
+       .formats =              SNDRV_PCM_FMTBIT_S16_LE,
+       .rates =                SNDRV_PCM_RATE_KNOT|SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000,
+       .rate_min =             8000,
+       .rate_max =             16000,
+       .channels_min =         1,
+       .channels_max =         1,
+       .buffer_bytes_max =     (256*1024),
+       .period_bytes_min =     64,
+       .period_bytes_max =     (256*1024),
+       .periods_min =          1,
+       .periods_max =          1024,
+       .fifo_size =            0,
+};
+
+static int snd_ali_modem_open(snd_pcm_substream_t * substream, int rec, int channel)
+{
+       static unsigned int rates [] = {8000,9600,12000,16000};
+       static snd_pcm_hw_constraint_list_t hw_constraint_rates = {
+               .count = ARRAY_SIZE(rates),
+               .list = rates,
+               .mask = 0,
+       };
+       int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
+       if (err)
+               return err;
+       return snd_pcm_hw_constraint_list(substream->runtime, 0,
+                       SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
+}
+
+static int snd_ali_modem_playback_open(snd_pcm_substream_t * substream)
+{
+       return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
+}
+
+static int snd_ali_modem_capture_open(snd_pcm_substream_t * substream)
+{
+       return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
+}
+
+static snd_pcm_ops_t snd_ali_modem_playback_ops = {
+       .open =         snd_ali_modem_playback_open,
+       .close =        snd_ali_close,
+       .ioctl =        snd_pcm_lib_ioctl,
+       .hw_params =    snd_ali_modem_hw_params,
+       .hw_free =      snd_ali_hw_free,
+       .prepare =      snd_ali_prepare,
+       .trigger =      snd_ali_trigger,
+       .pointer =      snd_ali_pointer,
+};
+
+static snd_pcm_ops_t snd_ali_modem_capture_ops = {
+       .open =         snd_ali_modem_capture_open,
+       .close =        snd_ali_close,
+       .ioctl =        snd_pcm_lib_ioctl,
+       .hw_params =    snd_ali_modem_hw_params,
+       .hw_free =      snd_ali_hw_free,
+       .prepare =      snd_ali_prepare,
        .trigger =      snd_ali_trigger,
-       .pointer =      snd_ali_capture_pointer,
+       .pointer =      snd_ali_pointer,
+};
+
+
+struct ali_pcm_description {
+       char *name;
+       unsigned int playback_num;
+       unsigned int capture_num;
+       snd_pcm_ops_t *playback_ops;
+       snd_pcm_ops_t *capture_ops;
 };
 
 
 static void snd_ali_pcm_free(snd_pcm_t *pcm)
 {
        ali_t *codec = pcm->private_data;
-       codec->pcm = NULL;
+       codec->pcm[pcm->device] = NULL;
 }
 
-static int __devinit snd_ali_pcm(ali_t * codec, int device, snd_pcm_t ** rpcm)
+
+static int __devinit snd_ali_pcm(ali_t * codec, int device, struct ali_pcm_description *desc)
 {
        snd_pcm_t *pcm;
        int err;
 
-       if (rpcm) *rpcm = NULL;
-       err = snd_pcm_new(codec->card, "ALI 5451", device, ALI_CHANNELS, 1, &pcm);
+       err = snd_pcm_new(codec->card, desc->name, device,
+                         desc->playback_num, desc->capture_num, &pcm);
        if (err < 0) {
                snd_printk("snd_ali_pcm: err called snd_pcm_new.\n");
                return err;
@@ -1728,20 +1827,36 @@ static int __devinit snd_ali_pcm(ali_t * codec, int device, snd_pcm_t ** rpcm)
        pcm->private_data = codec;
        pcm->private_free = snd_ali_pcm_free;
        pcm->info_flags = 0;
-       snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ali_playback_ops);
-       snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ali_capture_ops);
+       if (desc->playback_ops)
+               snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, desc->playback_ops);
+       if (desc->capture_ops)
+               snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, desc->capture_ops);
 
        snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
                                              snd_dma_pci_data(codec->pci), 64*1024, 128*1024);
 
        pcm->info_flags = 0;
        pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
-       strcpy(pcm->name, "ALI 5451");
-       codec->pcm = pcm;
-       if (rpcm) *rpcm = pcm;
+       strcpy(pcm->name, desc->name);
+       codec->pcm[0] = pcm;
        return 0;
 }
 
+struct ali_pcm_description ali_pcms[] = {
+       { "ALI 5451", ALI_CHANNELS, 1, &snd_ali_playback_ops, &snd_ali_capture_ops },
+       { "ALI 5451 modem", 1, 1, &snd_ali_modem_playback_ops, &snd_ali_modem_capture_ops }
+};
+
+static int __devinit snd_ali_build_pcms(ali_t *codec)
+{
+       int i, err;
+       for(i = 0 ; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms) ; i++)
+               if((err = snd_ali_pcm(codec, i, &ali_pcms[i])) < 0)
+                       return err;
+       return 0;
+}
+
+
 #define ALI5451_SPDIF(xname, xindex, value) \
 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
@@ -1860,14 +1975,14 @@ static void snd_ali_mixer_free_ac97_bus(ac97_bus_t *bus)
 static void snd_ali_mixer_free_ac97(ac97_t *ac97)
 {
        ali_t *codec = ac97->private_data;
-       codec->ac97 = NULL;
+       codec->ac97[ac97->num] = NULL;
 }
 
 static int __devinit snd_ali_mixer(ali_t * codec)
 {
        ac97_template_t ac97;
        unsigned int idx;
-       int err;
+       int i, err;
        static ac97_bus_ops_t ops = {
                .write = snd_ali_codec_write,
                .read = snd_ali_codec_read,
@@ -1880,10 +1995,16 @@ static int __devinit snd_ali_mixer(ali_t * codec)
        memset(&ac97, 0, sizeof(ac97));
        ac97.private_data = codec;
        ac97.private_free = snd_ali_mixer_free_ac97;
-       if ((err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97)) < 0) {
-               snd_printk("ali mixer creating error.\n");
+
+       for ( i = 0 ; i < codec->num_of_codecs ; i++) {
+               ac97.num = i;
+               if ((err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i])) < 0) {
+                       snd_printk("ali mixer %d creating error.\n", i);
+                       if(i == 0)
                return err;
        }
+       }
+
        if (codec->spdif_support) {
                for(idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
                        err=snd_ctl_add(codec->card, snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
@@ -1904,8 +2025,12 @@ static int ali_suspend(snd_card_t *card, pm_message_t state)
        if (! im)
                return 0;
 
-       snd_pcm_suspend_all(chip->pcm);
-       snd_ac97_suspend(chip->ac97);
+       for(i = 0 ; i < chip->num_of_codecs ; i++) {
+               if (chip->pcm[i])
+                       snd_pcm_suspend_all(chip->pcm[i]);
+               if(chip->ac97[i])
+                       snd_ac97_suspend(chip->ac97[i]);
+       }
 
        spin_lock_irq(&chip->reg_lock);
        
@@ -1969,7 +2094,9 @@ static int ali_resume(snd_card_t *card)
        
        spin_unlock_irq(&chip->reg_lock);
 
-       snd_ac97_resume(chip->ac97);
+       for(i = 0 ; i < chip->num_of_codecs ; i++)
+               if(chip->ac97[i])
+                       snd_ac97_resume(chip->ac97[i]);
        
        return 0;
 }
@@ -2036,11 +2163,37 @@ static int snd_ali_chip_init(ali_t *codec)
                codec->spdif_mask = 0x00000002;
        }
 
+       codec->num_of_codecs = 1;
+
+       /* secondary codec - modem */
+       if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
+               codec->num_of_codecs++;
+               outl(inl(ALI_REG(codec, ALI_SCTRL)) |
+                       (ALI_SCTRL_LINE_IN2|ALI_SCTRL_GPIO_IN2|ALI_SCTRL_LINE_OUT_EN),
+                       ALI_REG(codec, ALI_SCTRL));
+       }
+
        snd_ali_printk("chip initialize succeed.\n");
        return 0;
 
 }
 
+/* proc for register dump */
+static void snd_ali_proc_read(snd_info_entry_t *entry, snd_info_buffer_t *buf)
+{
+       ali_t *codec = entry->private_data;
+       int i;
+       for(i = 0 ; i < 256 ; i+= 4)
+               snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
+}
+
+static void __devinit snd_ali_proc_init(ali_t *codec)
+{
+       snd_info_entry_t *entry;
+       if(!snd_card_proc_new(codec->card, "ali5451", &entry))
+               snd_info_set_text_ops(entry, codec, 1024, snd_ali_proc_read);
+}
+
 static int __devinit snd_ali_resources(ali_t *codec)
 {
        int err;
@@ -2233,11 +2386,13 @@ static int __devinit snd_ali_probe(struct pci_dev *pci,
        }
        
        snd_ali_printk("pcm building ...\n");
-       if ((err = snd_ali_pcm(codec, 0, NULL)) < 0) {
+       if ((err = snd_ali_build_pcms(codec)) < 0) {
                snd_card_free(card);
                return err;
        }
 
+       snd_ali_proc_init(codec);
+
        strcpy(card->driver, "ALI5451");
        strcpy(card->shortname, "ALI 5451");