6 files changed, 67 insertions, 126 deletions

diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index 1497dce1b04a..c5699863643b 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -172,14 +172,15 @@ static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
         return v;
 }
 
-static inline void aaci_chan_wait_ready(struct aaci_runtime *aacirun)
+static inline void
+aaci_chan_wait_ready(struct aaci_runtime *aacirun, unsigned long mask)
 {
         u32 val;
         int timeout = 5000;
 
         do {
                 val = readl(aacirun->base + AACI_SR);
-        } while (val & (SR_TXB|SR_RXB) && timeout--);
+        } while (val & mask && timeout--);
 }
 
 
@@ -208,8 +209,10 @@ static void aaci_fifo_irq(struct aaci *aaci, int channel, u32 mask)
                         writel(0, aacirun->base + AACI_IE);
                         return;
                 }
-                ptr = aacirun->ptr;
 
+                spin_lock(&aacirun->lock);
+
+                ptr = aacirun->ptr;
                 do {
                         unsigned int len = aacirun->fifosz;
                         u32 val;
@@ -217,9 +220,9 @@ static void aaci_fifo_irq(struct aaci *aaci, int channel, u32 mask)
                         if (aacirun->bytes <= 0) {
                                 aacirun->bytes += aacirun->period;
                                 aacirun->ptr = ptr;
-                                spin_unlock(&aaci->lock);
+                                spin_unlock(&aacirun->lock);
                                 snd_pcm_period_elapsed(aacirun->substream);
-                                spin_lock(&aaci->lock);
+                                spin_lock(&aacirun->lock);
                         }
                         if (!(aacirun->cr & CR_EN))
                                 break;
@@ -245,7 +248,10 @@ static void aaci_fifo_irq(struct aaci *aaci, int channel, u32 mask)
                                         ptr = aacirun->start;
                         }
                 } while(1);
+
                 aacirun->ptr = ptr;
+
+                spin_unlock(&aacirun->lock);
         }
 
         if (mask & ISR_URINTR) {
@@ -263,6 +269,8 @@ static void aaci_fifo_irq(struct aaci *aaci, int channel, u32 mask)
                         return;
                 }
 
+                spin_lock(&aacirun->lock);
+
                 ptr = aacirun->ptr;
                 do {
                         unsigned int len = aacirun->fifosz;
@@ -271,9 +279,9 @@ static void aaci_fifo_irq(struct aaci *aaci, int channel, u32 mask)
                         if (aacirun->bytes <= 0) {
                                 aacirun->bytes += aacirun->period;
                                 aacirun->ptr = ptr;
-                                spin_unlock(&aaci->lock);
+                                spin_unlock(&aacirun->lock);
                                 snd_pcm_period_elapsed(aacirun->substream);
-                                spin_lock(&aaci->lock);
+                                spin_lock(&aacirun->lock);
                         }
                         if (!(aacirun->cr & CR_EN))
                                 break;
@@ -301,6 +309,8 @@ static void aaci_fifo_irq(struct aaci *aaci, int channel, u32 mask)
                 } while (1);
 
                 aacirun->ptr = ptr;
+
+                spin_unlock(&aacirun->lock);
         }
 }
 
@@ -310,7 +320,6 @@ static irqreturn_t aaci_irq(int irq, void *devid)
         u32 mask;
         int i;
 
-        spin_lock(&aaci->lock);
         mask = readl(aaci->base + AACI_ALLINTS);
         if (mask) {
                 u32 m = mask;
@@ -320,7 +329,6 @@ static irqreturn_t aaci_irq(int irq, void *devid)
                         }
                 }
         }
-        spin_unlock(&aaci->lock);
 
         return mask ? IRQ_HANDLED : IRQ_NONE;
 }
@@ -330,63 +338,6 @@ static irqreturn_t aaci_irq(int irq, void *devid)
 /*
  * ALSA support.
  */
-
-struct aaci_stream {
-        unsigned char codec_idx;
-        unsigned char rate_idx;
-};
-
-static struct aaci_stream aaci_streams[] = {
-        [ACSTREAM_FRONT] = {
-                .codec_idx      = 0,
-                .rate_idx       = AC97_RATES_FRONT_DAC,
-        },
-        [ACSTREAM_SURROUND] = {
-                .codec_idx      = 0,
-                .rate_idx       = AC97_RATES_SURR_DAC,
-        },
-        [ACSTREAM_LFE] = {
-                .codec_idx      = 0,
-                .rate_idx       = AC97_RATES_LFE_DAC,
-        },
-};
-
-static inline unsigned int aaci_rate_mask(struct aaci *aaci, int streamid)
-{
-        struct aaci_stream *s = aaci_streams + streamid;
-        return aaci->ac97_bus->codec[s->codec_idx]->rates[s->rate_idx];
-}
-
-static unsigned int rate_list[] = {
-        5512, 8000, 11025, 16000, 22050, 32000, 44100,
-        48000, 64000, 88200, 96000, 176400, 192000
-};
-
-/*
- * Double-rate rule: we can support double rate iff channels == 2
- *  (unimplemented)
- */
-static int
-aaci_rule_rate_by_channels(struct snd_pcm_hw_params *p, struct snd_pcm_hw_rule *rule)
-{
-        struct aaci *aaci = rule->private;
-        unsigned int rate_mask = SNDRV_PCM_RATE_8000_48000|SNDRV_PCM_RATE_5512;
-        struct snd_interval *c = hw_param_interval(p, SNDRV_PCM_HW_PARAM_CHANNELS);
-
-        switch (c->max) {
-        case 6:
-                rate_mask &= aaci_rate_mask(aaci, ACSTREAM_LFE);
-        case 4:
-                rate_mask &= aaci_rate_mask(aaci, ACSTREAM_SURROUND);
-        case 2:
-                rate_mask &= aaci_rate_mask(aaci, ACSTREAM_FRONT);
-        }
-
-        return snd_interval_list(hw_param_interval(p, rule->var),
-                                 ARRAY_SIZE(rate_list), rate_list,
-                                 rate_mask);
-}
-
 static struct snd_pcm_hardware aaci_hw_info = {
         .info                   = SNDRV_PCM_INFO_MMAP |
                                   SNDRV_PCM_INFO_MMAP_VALID |
@@ -400,10 +351,7 @@ static struct snd_pcm_hardware aaci_hw_info = {
          */
         .formats                = SNDRV_PCM_FMTBIT_S16_LE,
 
-        /* should this be continuous or knot? */
-        .rates                  = SNDRV_PCM_RATE_CONTINUOUS,
-        .rate_max               = 48000,
-        .rate_min               = 4000,
+        /* rates are setup from the AC'97 codec */
         .channels_min           = 2,
         .channels_max           = 6,
         .buffer_bytes_max       = 64 * 1024,
@@ -423,6 +371,12 @@ static int __aaci_pcm_open(struct aaci *aaci,
         aacirun->substream = substream;
         runtime->private_data = aacirun;
         runtime->hw = aaci_hw_info;
+        runtime->hw.rates = aacirun->pcm->rates;
+        snd_pcm_limit_hw_rates(runtime);
+
+        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
+            aacirun->pcm->r[1].slots)
+                snd_ac97_pcm_double_rate_rules(runtime);
 
         /*
          * FIXME: ALSA specifies fifo_size in bytes.  If we're in normal
@@ -433,17 +387,6 @@ static int __aaci_pcm_open(struct aaci *aaci,
          */
         runtime->hw.fifo_size = aaci->fifosize * 2;
 
-        /*
-         * Add rule describing hardware rate dependency
-         * on the number of channels.
-         */
-        ret = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
-                                  aaci_rule_rate_by_channels, aaci,
-                                  SNDRV_PCM_HW_PARAM_CHANNELS,
-                                  SNDRV_PCM_HW_PARAM_RATE, -1);
-        if (ret)
-                goto out;
-
         ret = request_irq(aaci->dev->irq[0], aaci_irq, IRQF_SHARED|IRQF_DISABLED,
                           DRIVER_NAME, aaci);
         if (ret)
@@ -507,18 +450,22 @@ static int aaci_pcm_hw_params(struct snd_pcm_substream *substream,
 
         err = snd_pcm_lib_malloc_pages(substream,
                                        params_buffer_bytes(params));
-        if (err < 0)
-                goto out;
+        if (err >= 0) {
+                unsigned int rate = params_rate(params);
+                int dbl = rate > 48000;
 
-        err = snd_ac97_pcm_open(aacirun->pcm, params_rate(params),
-                                params_channels(params),
-                                aacirun->pcm->r[0].slots);
-        if (err)
-                goto out;
+                err = snd_ac97_pcm_open(aacirun->pcm, rate,
+                                        params_channels(params),
+                                        aacirun->pcm->r[dbl].slots);
 
-        aacirun->pcm_open = 1;
+                aacirun->pcm_open = err == 0;
+                aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16;
+                aacirun->fifosz = aaci->fifosize * 4;
+
+                if (aacirun->cr & CR_COMPACT)
+                        aacirun->fifosz >>= 1;
+        }
 
- out:
         return err;
 }
 
@@ -527,7 +474,7 @@ static int aaci_pcm_prepare(struct snd_pcm_substream *substream)
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct aaci_runtime *aacirun = runtime->private_data;
 
-        aacirun->start  = (void *)runtime->dma_area;
+        aacirun->start  = runtime->dma_area;
         aacirun->end    = aacirun->start + snd_pcm_lib_buffer_bytes(substream);
         aacirun->ptr    = aacirun->start;
         aacirun->period =
@@ -627,14 +574,9 @@ static int aaci_pcm_playback_hw_params(struct snd_pcm_substream *substream,
          * Enable FIFO, compact mode, 16 bits per sample.
          * FIXME: double rate slots?
          */
-        if (ret >= 0) {
-                aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16;
+        if (ret >= 0)
                 aacirun->cr |= channels_to_txmask[channels];
 
-                aacirun->fifosz = aaci->fifosize * 4;
-                if (aacirun->cr & CR_COMPACT)
-                        aacirun->fifosz >>= 1;
-        }
         return ret;
 }
 
@@ -646,7 +588,7 @@ static void aaci_pcm_playback_stop(struct aaci_runtime *aacirun)
         ie &= ~(IE_URIE|IE_TXIE);
         writel(ie, aacirun->base + AACI_IE);
         aacirun->cr &= ~CR_EN;
-        aaci_chan_wait_ready(aacirun);
+        aaci_chan_wait_ready(aacirun, SR_TXB);
         writel(aacirun->cr, aacirun->base + AACI_TXCR);
 }
 
@@ -654,7 +596,7 @@ static void aaci_pcm_playback_start(struct aaci_runtime *aacirun)
 {
         u32 ie;
 
-        aaci_chan_wait_ready(aacirun);
+        aaci_chan_wait_ready(aacirun, SR_TXB);
         aacirun->cr |= CR_EN;
 
         ie = readl(aacirun->base + AACI_IE);
@@ -665,12 +607,12 @@ static void aaci_pcm_playback_start(struct aaci_runtime *aacirun)
 
 static int aaci_pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd)
 {
-        struct aaci *aaci = substream->private_data;
         struct aaci_runtime *aacirun = substream->runtime->private_data;
         unsigned long flags;
         int ret = 0;
 
-        spin_lock_irqsave(&aaci->lock, flags);
+        spin_lock_irqsave(&aacirun->lock, flags);
+
         switch (cmd) {
         case SNDRV_PCM_TRIGGER_START:
                 aaci_pcm_playback_start(aacirun);
@@ -697,7 +639,8 @@ static int aaci_pcm_playback_trigger(struct snd_pcm_substream *substream, int cm
         default:
                 ret = -EINVAL;
         }
-        spin_unlock_irqrestore(&aaci->lock, flags);
+
+        spin_unlock_irqrestore(&aacirun->lock, flags);
 
         return ret;
 }
@@ -721,18 +664,10 @@ static int aaci_pcm_capture_hw_params(struct snd_pcm_substream *substream,
         int ret;
 
         ret = aaci_pcm_hw_params(substream, aacirun, params);
-
-        if (ret >= 0) {
-                aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16;
-
+        if (ret >= 0)
                 /* Line in record: slot 3 and 4 */
                 aacirun->cr |= CR_SL3 | CR_SL4;
 
-                aacirun->fifosz = aaci->fifosize * 4;
-
-                if (aacirun->cr & CR_COMPACT)
-                        aacirun->fifosz >>= 1;
-        }
         return ret;
 }
 
@@ -740,7 +675,7 @@ static void aaci_pcm_capture_stop(struct aaci_runtime *aacirun)
 {
         u32 ie;
 
-        aaci_chan_wait_ready(aacirun);
+        aaci_chan_wait_ready(aacirun, SR_RXB);
 
         ie = readl(aacirun->base + AACI_IE);
         ie &= ~(IE_ORIE | IE_RXIE);
@@ -755,7 +690,7 @@ static void aaci_pcm_capture_start(struct aaci_runtime *aacirun)
 {
         u32 ie;
 
-        aaci_chan_wait_ready(aacirun);
+        aaci_chan_wait_ready(aacirun, SR_RXB);
 
 #ifdef DEBUG
         /* RX Timeout value: bits 28:17 in RXCR */
@@ -772,12 +707,11 @@ static void aaci_pcm_capture_start(struct aaci_runtime *aacirun)
 
 static int aaci_pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd)
 {
-        struct aaci *aaci = substream->private_data;
         struct aaci_runtime *aacirun = substream->runtime->private_data;
         unsigned long flags;
         int ret = 0;
 
-        spin_lock_irqsave(&aaci->lock, flags);
+        spin_lock_irqsave(&aacirun->lock, flags);
 
         switch (cmd) {
         case SNDRV_PCM_TRIGGER_START:
@@ -806,7 +740,7 @@ static int aaci_pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd
                 ret = -EINVAL;
         }
 
-        spin_unlock_irqrestore(&aaci->lock, flags);
+        spin_unlock_irqrestore(&aacirun->lock, flags);
 
         return ret;
 }
@@ -889,6 +823,12 @@ static struct ac97_pcm ac97_defs[] __devinitdata = {
                                           (1 << AC97_SLOT_PCM_SRIGHT) |
                                           (1 << AC97_SLOT_LFE),
                         },
+                        [1] = {
+                                .slots  = (1 << AC97_SLOT_PCM_LEFT) |
+                                          (1 << AC97_SLOT_PCM_RIGHT) |
+                                          (1 << AC97_SLOT_PCM_LEFT_0) |
+                                          (1 << AC97_SLOT_PCM_RIGHT_0),
+                        },
                 },
         },
         [1] = { /* PCM in */
@@ -1001,7 +941,6 @@ static struct aaci * __devinit aaci_init_card(struct amba_device *dev)
 
         aaci = card->private_data;
         mutex_init(&aaci->ac97_sem);
-        spin_lock_init(&aaci->lock);
         aaci->card = card;
         aaci->dev = dev;
 
@@ -1028,7 +967,7 @@ static int __devinit aaci_init_pcm(struct aaci *aaci)
                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &aaci_playback_ops);
                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &aaci_capture_ops);
                 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-                                                      NULL, 0, 64 * 104);
+                                                      NULL, 0, 64 * 1024);
         }
 
         return ret;
@@ -1088,12 +1027,14 @@ static int __devinit aaci_probe(struct amba_device *dev, struct amba_id *id)
         /*
          * Playback uses AACI channel 0
          */
+        spin_lock_init(&aaci->playback.lock);
         aaci->playback.base = aaci->base + AACI_CSCH1;
         aaci->playback.fifo = aaci->base + AACI_DR1;
 
         /*
          * Capture uses AACI channel 0
          */
+        spin_lock_init(&aaci->capture.lock);
         aaci->capture.base = aaci->base + AACI_CSCH1;
         aaci->capture.fifo = aaci->base + AACI_DR1;
 
diff --git a/sound/arm/aaci.h b/sound/arm/aaci.h
index 924f69c1c44c..6a4a2eebdda1 100644
--- a/sound/arm/aaci.h
+++ b/sound/arm/aaci.h
@@ -202,6 +202,7 @@
 struct aaci_runtime {
         void                    __iomem *base;
         void                    __iomem *fifo;
+        spinlock_t              lock;
 
         struct ac97_pcm         *pcm;
         int                     pcm_open;
@@ -232,7 +233,6 @@ struct aaci {
         struct snd_ac97         *ac97;
 
         u32                     maincr;
-        spinlock_t              lock;
 
         struct aaci_runtime     playback;
         struct aaci_runtime     capture;
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 30f410832a25..a27545b23ee9 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -758,7 +758,7 @@ int snd_interval_ratnum(struct snd_interval *i,
                 int diff;
                 if (q == 0)
                         q = 1;
-                den = div_down(num, q);
+                den = div_up(num, q);
                 if (den < rats[k].den_min)
                         continue;
                 if (den > rats[k].den_max)
@@ -794,7 +794,7 @@ int snd_interval_ratnum(struct snd_interval *i,
                         i->empty = 1;
                         return -EINVAL;
                 }
-                den = div_up(num, q);
+                den = div_down(num, q);
                 if (den > rats[k].den_max)
                         continue;
                 if (den < rats[k].den_min)
diff --git a/sound/isa/msnd/msnd_midi.c b/sound/isa/msnd/msnd_midi.c
index cb9aa4c4edd0..4be562b2cf21 100644
--- a/sound/isa/msnd/msnd_midi.c
+++ b/sound/isa/msnd/msnd_midi.c
@@ -162,7 +162,7 @@ int snd_msndmidi_new(struct snd_card *card, int device)
         err = snd_rawmidi_new(card, "MSND-MIDI", device, 1, 1, &rmidi);
         if (err < 0)
                 return err;
-        mpu = kcalloc(1, sizeof(*mpu), GFP_KERNEL);
+        mpu = kzalloc(sizeof(*mpu), GFP_KERNEL);
         if (mpu == NULL) {
                 snd_device_free(card, rmidi);
                 return -ENOMEM;
diff --git a/sound/isa/sb/emu8000.c b/sound/isa/sb/emu8000.c
index 96678d5d3834..751762f1c59a 100644
--- a/sound/isa/sb/emu8000.c
+++ b/sound/isa/sb/emu8000.c
@@ -393,8 +393,6 @@ size_dram(struct snd_emu8000 *emu)
 
         while (size < EMU8000_MAX_DRAM) {
 
-                size += 512 * 1024;  /* increment 512kbytes */
-
                 /* Write a unique data on the test address.
                  * if the address is out of range, the data is written on
                  * 0x200000(=EMU8000_DRAM_OFFSET).  Then the id word is
@@ -414,7 +412,9 @@ size_dram(struct snd_emu8000 *emu)
                 /*snd_emu8000_read_wait(emu);*/
                 EMU8000_SMLD_READ(emu); /* discard stale data  */
                 if (EMU8000_SMLD_READ(emu) != UNIQUE_ID2)
-                        break; /* we must have wrapped around */
+                        break; /* no memory at this address */
+
+                size += 512 * 1024;  /* increment 512kbytes */
 
                 snd_emu8000_read_wait(emu);
 
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index aeed4cc5aa79..20c1828e4bac 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -12857,7 +12857,7 @@ static int patch_alc268(struct hda_codec *codec)
         int board_config;
         int i, has_beep, err;
 
-        spec = kcalloc(1, sizeof(*spec), GFP_KERNEL);
+        spec = kzalloc(sizeof(*spec), GFP_KERNEL);
         if (spec == NULL)
                 return -ENOMEM;