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-rw-r--r--sound/arm/Makefile2
-rw-r--r--sound/arm/aaci.c580
-rw-r--r--sound/arm/aaci.h11
-rw-r--r--sound/arm/devdma.c80
-rw-r--r--sound/arm/devdma.h3
-rw-r--r--sound/arm/pxa2xx-ac97-lib.c123
-rw-r--r--sound/arm/pxa2xx-ac97.c88
-rw-r--r--sound/arm/pxa2xx-pcm-lib.c62
-rw-r--r--sound/arm/pxa2xx-pcm.c18
-rw-r--r--sound/arm/pxa2xx-pcm.h9
10 files changed, 402 insertions, 574 deletions
diff --git a/sound/arm/Makefile b/sound/arm/Makefile
index 5a549ed6c8a..8c0c851d464 100644
--- a/sound/arm/Makefile
+++ b/sound/arm/Makefile
@@ -3,7 +3,7 @@
#
obj-$(CONFIG_SND_ARMAACI) += snd-aaci.o
-snd-aaci-objs := aaci.o devdma.o
+snd-aaci-objs := aaci.o
obj-$(CONFIG_SND_PXA2XX_PCM) += snd-pxa2xx-pcm.o
snd-pxa2xx-pcm-objs := pxa2xx-pcm.o
diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index 5c48e36038f..0e83a73efb1 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -18,10 +18,7 @@
#include <linux/interrupt.h>
#include <linux/err.h>
#include <linux/amba/bus.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/sizes.h>
+#include <linux/io.h>
#include <sound/core.h>
#include <sound/initval.h>
@@ -30,10 +27,11 @@
#include <sound/pcm_params.h>
#include "aaci.h"
-#include "devdma.h"
#define DRIVER_NAME "aaci-pl041"
+#define FRAME_PERIOD_US 21
+
/*
* PM support is not complete. Turn it off.
*/
@@ -52,7 +50,11 @@ static void aaci_ac97_select_codec(struct aaci *aaci, struct snd_ac97 *ac97)
if (v & SLFR_1RXV)
readl(aaci->base + AACI_SL1RX);
- writel(maincr, aaci->base + AACI_MAINCR);
+ if (maincr != readl(aaci->base + AACI_MAINCR)) {
+ writel(maincr, aaci->base + AACI_MAINCR);
+ readl(aaci->base + AACI_MAINCR);
+ udelay(1);
+ }
}
/*
@@ -68,8 +70,8 @@ static void aaci_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
unsigned short val)
{
struct aaci *aaci = ac97->private_data;
+ int timeout;
u32 v;
- int timeout = 5000;
if (ac97->num >= 4)
return;
@@ -85,14 +87,17 @@ static void aaci_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
writel(val << 4, aaci->base + AACI_SL2TX);
writel(reg << 12, aaci->base + AACI_SL1TX);
- /*
- * Wait for the transmission of both slots to complete.
- */
+ /* Initially, wait one frame period */
+ udelay(FRAME_PERIOD_US);
+
+ /* And then wait an additional eight frame periods for it to be sent */
+ timeout = FRAME_PERIOD_US * 8;
do {
+ udelay(1);
v = readl(aaci->base + AACI_SLFR);
} while ((v & (SLFR_1TXB|SLFR_2TXB)) && --timeout);
- if (!timeout)
+ if (v & (SLFR_1TXB|SLFR_2TXB))
dev_err(&aaci->dev->dev,
"timeout waiting for write to complete\n");
@@ -105,9 +110,8 @@ static void aaci_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
{
struct aaci *aaci = ac97->private_data;
+ int timeout, retries = 10;
u32 v;
- int timeout = 5000;
- int retries = 10;
if (ac97->num >= 4)
return ~0;
@@ -121,35 +125,34 @@ static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
*/
writel((reg << 12) | (1 << 19), aaci->base + AACI_SL1TX);
- /*
- * Wait for the transmission to complete.
- */
+ /* Initially, wait one frame period */
+ udelay(FRAME_PERIOD_US);
+
+ /* And then wait an additional eight frame periods for it to be sent */
+ timeout = FRAME_PERIOD_US * 8;
do {
+ udelay(1);
v = readl(aaci->base + AACI_SLFR);
} while ((v & SLFR_1TXB) && --timeout);
- if (!timeout) {
+ if (v & SLFR_1TXB) {
dev_err(&aaci->dev->dev, "timeout on slot 1 TX busy\n");
v = ~0;
goto out;
}
- /*
- * Give the AC'97 codec more than enough time
- * to respond. (42us = ~2 frames at 48kHz.)
- */
- udelay(42);
+ /* Now wait for the response frame */
+ udelay(FRAME_PERIOD_US);
- /*
- * Wait for slot 2 to indicate data.
- */
- timeout = 5000;
+ /* And then wait an additional eight frame periods for data */
+ timeout = FRAME_PERIOD_US * 8;
do {
+ udelay(1);
cond_resched();
v = readl(aaci->base + AACI_SLFR) & (SLFR_1RXV|SLFR_2RXV);
} while ((v != (SLFR_1RXV|SLFR_2RXV)) && --timeout);
- if (!timeout) {
+ if (v != (SLFR_1RXV|SLFR_2RXV)) {
dev_err(&aaci->dev->dev, "timeout on RX valid\n");
v = ~0;
goto out;
@@ -176,14 +179,16 @@ 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 {
+ udelay(1);
val = readl(aacirun->base + AACI_SR);
- } while (val & (SR_TXB|SR_RXB) && timeout--);
+ } while (val & mask && timeout--);
}
@@ -205,6 +210,7 @@ static void aaci_fifo_irq(struct aaci *aaci, int channel, u32 mask)
if (mask & ISR_RXINTR) {
struct aaci_runtime *aacirun = &aaci->capture;
+ bool period_elapsed = false;
void *ptr;
if (!aacirun->substream || !aacirun->start) {
@@ -212,18 +218,17 @@ 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;
+ unsigned int len = aacirun->fifo_bytes;
u32 val;
if (aacirun->bytes <= 0) {
aacirun->bytes += aacirun->period;
- aacirun->ptr = ptr;
- spin_unlock(&aaci->lock);
- snd_pcm_period_elapsed(aacirun->substream);
- spin_lock(&aaci->lock);
+ period_elapsed = true;
}
if (!(aacirun->cr & CR_EN))
break;
@@ -249,7 +254,13 @@ 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 (period_elapsed)
+ snd_pcm_period_elapsed(aacirun->substream);
}
if (mask & ISR_URINTR) {
@@ -259,6 +270,7 @@ static void aaci_fifo_irq(struct aaci *aaci, int channel, u32 mask)
if (mask & ISR_TXINTR) {
struct aaci_runtime *aacirun = &aaci->playback;
+ bool period_elapsed = false;
void *ptr;
if (!aacirun->substream || !aacirun->start) {
@@ -267,17 +279,16 @@ 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;
+ unsigned int len = aacirun->fifo_bytes;
u32 val;
if (aacirun->bytes <= 0) {
aacirun->bytes += aacirun->period;
- aacirun->ptr = ptr;
- spin_unlock(&aaci->lock);
- snd_pcm_period_elapsed(aacirun->substream);
- spin_lock(&aaci->lock);
+ period_elapsed = true;
}
if (!(aacirun->cr & CR_EN))
break;
@@ -305,6 +316,11 @@ static void aaci_fifo_irq(struct aaci *aaci, int channel, u32 mask)
} while (1);
aacirun->ptr = ptr;
+
+ spin_unlock(&aacirun->lock);
+
+ if (period_elapsed)
+ snd_pcm_period_elapsed(aacirun->substream);
}
}
@@ -314,7 +330,6 @@ 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;
@@ -324,7 +339,6 @@ static irqreturn_t aaci_irq(int irq, void *devid)
}
}
}
- spin_unlock(&aaci->lock);
return mask ? IRQ_HANDLED : IRQ_NONE;
}
@@ -334,63 +348,6 @@ 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 |
@@ -404,12 +361,9 @@ 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,
+ .channels_max = 2,
.buffer_bytes_max = 64 * 1024,
.period_bytes_min = 256,
.period_bytes_max = PAGE_SIZE,
@@ -417,45 +371,84 @@ static struct snd_pcm_hardware aaci_hw_info = {
.periods_max = PAGE_SIZE / 16,
};
-static int __aaci_pcm_open(struct aaci *aaci,
- struct snd_pcm_substream *substream,
- struct aaci_runtime *aacirun)
+/*
+ * We can support two and four channel audio. Unfortunately
+ * six channel audio requires a non-standard channel ordering:
+ * 2 -> FL(3), FR(4)
+ * 4 -> FL(3), FR(4), SL(7), SR(8)
+ * 6 -> FL(3), FR(4), SL(7), SR(8), C(6), LFE(9) (required)
+ * FL(3), FR(4), C(6), SL(7), SR(8), LFE(9) (actual)
+ * This requires an ALSA configuration file to correct.
+ */
+static int aaci_rule_channels(struct snd_pcm_hw_params *p,
+ struct snd_pcm_hw_rule *rule)
+{
+ static unsigned int channel_list[] = { 2, 4, 6 };
+ struct aaci *aaci = rule->private;
+ unsigned int mask = 1 << 0, slots;
+
+ /* pcms[0] is the our 5.1 PCM instance. */
+ slots = aaci->ac97_bus->pcms[0].r[0].slots;
+ if (slots & (1 << AC97_SLOT_PCM_SLEFT)) {
+ mask |= 1 << 1;
+ if (slots & (1 << AC97_SLOT_LFE))
+ mask |= 1 << 2;
+ }
+
+ return snd_interval_list(hw_param_interval(p, rule->var),
+ ARRAY_SIZE(channel_list), channel_list, mask);
+}
+
+static int aaci_pcm_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
- int ret;
+ struct aaci *aaci = substream->private_data;
+ struct aaci_runtime *aacirun;
+ int ret = 0;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ aacirun = &aaci->playback;
+ } else {
+ aacirun = &aaci->capture;
+ }
aacirun->substream = substream;
runtime->private_data = aacirun;
runtime->hw = aaci_hw_info;
+ runtime->hw.rates = aacirun->pcm->rates;
+ snd_pcm_limit_hw_rates(runtime);
- /*
- * FIXME: ALSA specifies fifo_size in bytes. If we're in normal
- * mode, each 32-bit word contains one sample. If we're in
- * compact mode, each 32-bit word contains two samples, effectively
- * halving the FIFO size. However, we don't know for sure which
- * we'll be using at this point. We set this to the lower limit.
- */
- runtime->hw.fifo_size = aaci->fifosize * 2;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ runtime->hw.channels_max = 6;
+
+ /* Add rule describing channel dependency. */
+ ret = snd_pcm_hw_rule_add(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ aaci_rule_channels, aaci,
+ SNDRV_PCM_HW_PARAM_CHANNELS, -1);
+ if (ret)
+ return ret;
+
+ if (aacirun->pcm->r[1].slots)
+ snd_ac97_pcm_double_rate_rules(runtime);
+ }
/*
- * Add rule describing hardware rate dependency
- * on the number of channels.
+ * ALSA wants the byte-size of the FIFOs. As we only support
+ * 16-bit samples, this is twice the FIFO depth irrespective
+ * of whether it's in compact mode or not.
*/
- 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)
- goto out;
-
- return 0;
+ runtime->hw.fifo_size = aaci->fifo_depth * 2;
+
+ mutex_lock(&aaci->irq_lock);
+ if (!aaci->users++) {
+ ret = request_irq(aaci->dev->irq[0], aaci_irq,
+ IRQF_SHARED, DRIVER_NAME, aaci);
+ if (ret != 0)
+ aaci->users--;
+ }
+ mutex_unlock(&aaci->irq_lock);
- out:
return ret;
}
@@ -471,7 +464,11 @@ static int aaci_pcm_close(struct snd_pcm_substream *substream)
WARN_ON(aacirun->cr & CR_EN);
aacirun->substream = NULL;
- free_irq(aaci->dev->irq[0], aaci);
+
+ mutex_lock(&aaci->irq_lock);
+ if (!--aaci->users)
+ free_irq(aaci->dev->irq[0], aaci);
+ mutex_unlock(&aaci->irq_lock);
return 0;
}
@@ -492,39 +489,57 @@ static int aaci_pcm_hw_free(struct snd_pcm_substream *substream)
/*
* Clear out the DMA and any allocated buffers.
*/
- devdma_hw_free(NULL, substream);
+ snd_pcm_lib_free_pages(substream);
return 0;
}
+/* Channel to slot mask */
+static const u32 channels_to_slotmask[] = {
+ [2] = CR_SL3 | CR_SL4,
+ [4] = CR_SL3 | CR_SL4 | CR_SL7 | CR_SL8,
+ [6] = CR_SL3 | CR_SL4 | CR_SL7 | CR_SL8 | CR_SL6 | CR_SL9,
+};
+
static int aaci_pcm_hw_params(struct snd_pcm_substream *substream,
- struct aaci_runtime *aacirun,
struct snd_pcm_hw_params *params)
{
+ struct aaci_runtime *aacirun = substream->runtime->private_data;
+ unsigned int channels = params_channels(params);
+ unsigned int rate = params_rate(params);
+ int dbl = rate > 48000;
int err;
aaci_pcm_hw_free(substream);
+ if (aacirun->pcm_open) {
+ snd_ac97_pcm_close(aacirun->pcm);
+ aacirun->pcm_open = 0;
+ }
- err = devdma_hw_alloc(NULL, substream,
- params_buffer_bytes(params));
- if (err < 0)
- goto out;
+ /* channels is already limited to 2, 4, or 6 by aaci_rule_channels */
+ if (dbl && channels != 2)
+ return -EINVAL;
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- err = snd_ac97_pcm_open(aacirun->pcm, params_rate(params),
- params_channels(params),
- aacirun->pcm->r[0].slots);
- else
- err = snd_ac97_pcm_open(aacirun->pcm, params_rate(params),
- params_channels(params),
- aacirun->pcm->r[1].slots);
+ err = snd_pcm_lib_malloc_pages(substream,
+ params_buffer_bytes(params));
+ if (err >= 0) {
+ struct aaci *aaci = substream->private_data;
- if (err)
- goto out;
+ err = snd_ac97_pcm_open(aacirun->pcm, rate, channels,
+ aacirun->pcm->r[dbl].slots);
- aacirun->pcm_open = 1;
+ aacirun->pcm_open = err == 0;
+ aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16;
+ aacirun->cr |= channels_to_slotmask[channels + dbl * 2];
+
+ /*
+ * fifo_bytes is the number of bytes we transfer to/from
+ * the FIFO, including padding. So that's x4. As we're
+ * in compact mode, the FIFO is half the size.
+ */
+ aacirun->fifo_bytes = aaci->fifo_depth * 4 / 2;
+ }
- out:
return err;
}
@@ -533,11 +548,11 @@ 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->end = aacirun->start + runtime->dma_bytes;
+ aacirun->period = snd_pcm_lib_period_bytes(substream);
+ aacirun->start = runtime->dma_area;
+ aacirun->end = aacirun->start + snd_pcm_lib_buffer_bytes(substream);
aacirun->ptr = aacirun->start;
- aacirun->period =
- aacirun->bytes = frames_to_bytes(runtime, runtime->period_size);
+ aacirun->bytes = aacirun->period;
return 0;
}
@@ -551,104 +566,10 @@ static snd_pcm_uframes_t aaci_pcm_pointer(struct snd_pcm_substream *substream)
return bytes_to_frames(runtime, bytes);
}
-static int aaci_pcm_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *vma)
-{
- return devdma_mmap(NULL, substream, vma);
-}
-
/*
* Playback specific ALSA stuff
*/
-static const u32 channels_to_txmask[] = {
- [2] = CR_SL3 | CR_SL4,
- [4] = CR_SL3 | CR_SL4 | CR_SL7 | CR_SL8,
- [6] = CR_SL3 | CR_SL4 | CR_SL7 | CR_SL8 | CR_SL6 | CR_SL9,
-};
-
-/*
- * We can support two and four channel audio. Unfortunately
- * six channel audio requires a non-standard channel ordering:
- * 2 -> FL(3), FR(4)
- * 4 -> FL(3), FR(4), SL(7), SR(8)
- * 6 -> FL(3), FR(4), SL(7), SR(8), C(6), LFE(9) (required)
- * FL(3), FR(4), C(6), SL(7), SR(8), LFE(9) (actual)
- * This requires an ALSA configuration file to correct.
- */
-static unsigned int channel_list[] = { 2, 4, 6 };
-
-static int
-aaci_rule_channels(struct snd_pcm_hw_params *p, struct snd_pcm_hw_rule *rule)
-{
- struct aaci *aaci = rule->private;
- unsigned int chan_mask = 1 << 0, slots;
-
- /*
- * pcms[0] is the our 5.1 PCM instance.
- */
- slots = aaci->ac97_bus->pcms[0].r[0].slots;
- if (slots & (1 << AC97_SLOT_PCM_SLEFT)) {
- chan_mask |= 1 << 1;
- if (slots & (1 << AC97_SLOT_LFE))
- chan_mask |= 1 << 2;
- }
-
- return snd_interval_list(hw_param_interval(p, rule->var),
- ARRAY_SIZE(channel_list), channel_list,
- chan_mask);
-}
-
-static int aaci_pcm_open(struct snd_pcm_substream *substream)
-{
- struct aaci *aaci = substream->private_data;
- int ret;
-
- /*
- * Add rule describing channel dependency.
- */
- ret = snd_pcm_hw_rule_add(substream->runtime, 0,
- SNDRV_PCM_HW_PARAM_CHANNELS,
- aaci_rule_channels, aaci,
- SNDRV_PCM_HW_PARAM_CHANNELS, -1);
- if (ret)
- return ret;
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- ret = __aaci_pcm_open(aaci, substream, &aaci->playback);
- } else {
- ret = __aaci_pcm_open(aaci, substream, &aaci->capture);
- }
- return ret;
-}
-
-static int aaci_pcm_playback_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct aaci *aaci = substream->private_data;
- struct aaci_runtime *aacirun = substream->runtime->private_data;
- unsigned int channels = params_channels(params);
- int ret;
-
- WARN_ON(channels >= ARRAY_SIZE(channels_to_txmask) ||
- !channels_to_txmask[channels]);
-
- ret = aaci_pcm_hw_params(substream, aacirun, params);
-
- /*
- * Enable FIFO, compact mode, 16 bits per sample.
- * FIXME: double rate slots?
- */
- if (ret >= 0) {
- aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16;
- aacirun->cr |= channels_to_txmask[channels];
-
- aacirun->fifosz = aaci->fifosize * 4;
- if (aacirun->cr & CR_COMPACT)
- aacirun->fifosz >>= 1;
- }
- return ret;
-}
-
static void aaci_pcm_playback_stop(struct aaci_runtime *aacirun)
{
u32 ie;
@@ -657,7 +578,7 @@ 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);
}
@@ -665,7 +586,7 @@ 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);
@@ -676,12 +597,12 @@ 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);
@@ -708,7 +629,8 @@ 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;
}
@@ -717,42 +639,18 @@ static struct snd_pcm_ops aaci_playback_ops = {
.open = aaci_pcm_open,
.close = aaci_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = aaci_pcm_playback_hw_params,
+ .hw_params = aaci_pcm_hw_params,
.hw_free = aaci_pcm_hw_free,
.prepare = aaci_pcm_prepare,
.trigger = aaci_pcm_playback_trigger,
.pointer = aaci_pcm_pointer,
- .mmap = aaci_pcm_mmap,
};
-static int aaci_pcm_capture_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct aaci *aaci = substream->private_data;
- struct aaci_runtime *aacirun = substream->runtime->private_data;
- int ret;
-
- ret = aaci_pcm_hw_params(substream, aacirun, params);
-
- if (ret >= 0) {
- aacirun->cr = CR_FEN | CR_COMPACT | CR_SZ16;
-
- /* 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;
-}
-
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);
@@ -767,7 +665,7 @@ 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 */
@@ -784,12 +682,11 @@ 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:
@@ -818,7 +715,7 @@ 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;
}
@@ -845,19 +742,18 @@ static struct snd_pcm_ops aaci_capture_ops = {
.open = aaci_pcm_open,
.close = aaci_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = aaci_pcm_capture_hw_params,
+ .hw_params = aaci_pcm_hw_params,
.hw_free = aaci_pcm_hw_free,
.prepare = aaci_pcm_capture_prepare,
.trigger = aaci_pcm_capture_trigger,
.pointer = aaci_pcm_pointer,
- .mmap = aaci_pcm_mmap,
};
/*
* Power Management.
*/
#ifdef CONFIG_PM
-static int aaci_do_suspend(struct snd_card *card, unsigned int state)
+static int aaci_do_suspend(struct snd_card *card)
{
struct aaci *aaci = card->private_data;
snd_power_change_state(card, SNDRV_CTL_POWER_D3cold);
@@ -865,32 +761,32 @@ static int aaci_do_suspend(struct snd_card *card, unsigned int state)
return 0;
}
-static int aaci_do_resume(struct snd_card *card, unsigned int state)
+static int aaci_do_resume(struct snd_card *card)
{
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
-static int aaci_suspend(struct amba_device *dev, pm_message_t state)
+static int aaci_suspend(struct device *dev)
{
- struct snd_card *card = amba_get_drvdata(dev);
+ struct snd_card *card = dev_get_drvdata(dev);
return card ? aaci_do_suspend(card) : 0;
}
-static int aaci_resume(struct amba_device *dev)
+static int aaci_resume(struct device *dev)
{
- struct snd_card *card = amba_get_drvdata(dev);
+ struct snd_card *card = dev_get_drvdata(dev);
return card ? aaci_do_resume(card) : 0;
}
+
+static SIMPLE_DEV_PM_OPS(aaci_dev_pm_ops, aaci_suspend, aaci_resume);
+#define AACI_DEV_PM_OPS (&aaci_dev_pm_ops)
#else
-#define aaci_do_suspend NULL
-#define aaci_do_resume NULL
-#define aaci_suspend NULL
-#define aaci_resume NULL
+#define AACI_DEV_PM_OPS NULL
#endif
-static struct ac97_pcm ac97_defs[] __devinitdata = {
+static struct ac97_pcm ac97_defs[] = {
[0] = { /* Front PCM */
.exclusive = 1,
.r = {
@@ -902,6 +798,12 @@ 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 */
@@ -930,7 +832,7 @@ static struct snd_ac97_bus_ops aaci_bus_ops = {
.read = aaci_ac97_read,
};
-static int __devinit aaci_probe_ac97(struct aaci *aaci)
+static int aaci_probe_ac97(struct aaci *aaci)
{
struct snd_ac97_template ac97_template;
struct snd_ac97_bus *ac97_bus;
@@ -948,7 +850,7 @@ static int __devinit aaci_probe_ac97(struct aaci *aaci)
* Give the AC'97 codec more than enough time
* to wake up. (42us = ~2 frames at 48kHz.)
*/
- udelay(42);
+ udelay(FRAME_PERIOD_US * 2);
ret = snd_ac97_bus(aaci->card, 0, &aaci_bus_ops, aaci, &ac97_bus);
if (ret)
@@ -991,14 +893,14 @@ static void aaci_free_card(struct snd_card *card)
iounmap(aaci->base);
}
-static struct aaci * __devinit aaci_init_card(struct amba_device *dev)
+static struct aaci *aaci_init_card(struct amba_device *dev)
{
struct aaci *aaci;
struct snd_card *card;
int err;
- err = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
- THIS_MODULE, sizeof(struct aaci), &card);
+ err = snd_card_new(&dev->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
+ THIS_MODULE, sizeof(struct aaci), &card);
if (err < 0)
return NULL;
@@ -1007,13 +909,13 @@ static struct aaci * __devinit aaci_init_card(struct amba_device *dev)
strlcpy(card->driver, DRIVER_NAME, sizeof(card->driver));
strlcpy(card->shortname, "ARM AC'97 Interface", sizeof(card->shortname));
snprintf(card->longname, sizeof(card->longname),
- "%s at 0x%016llx, irq %d",
- card->shortname, (unsigned long long)dev->res.start,
- dev->irq[0]);
+ "%s PL%03x rev%u at 0x%08llx, irq %d",
+ card->shortname, amba_part(dev), amba_rev(dev),
+ (unsigned long long)dev->res.start, dev->irq[0]);
aaci = card->private_data;
mutex_init(&aaci->ac97_sem);
- spin_lock_init(&aaci->lock);
+ mutex_init(&aaci->irq_lock);
aaci->card = card;
aaci->dev = dev;
@@ -1024,7 +926,7 @@ static struct aaci * __devinit aaci_init_card(struct amba_device *dev)
return aaci;
}
-static int __devinit aaci_init_pcm(struct aaci *aaci)
+static int aaci_init_pcm(struct aaci *aaci)
{
struct snd_pcm *pcm;
int ret;
@@ -1039,16 +941,22 @@ 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 * 1024);
}
return ret;
}
-static unsigned int __devinit aaci_size_fifo(struct aaci *aaci)
+static unsigned int aaci_size_fifo(struct aaci *aaci)
{
struct aaci_runtime *aacirun = &aaci->playback;
int i;
+ /*
+ * Enable the channel, but don't assign it to any slots, so
+ * it won't empty onto the AC'97 link.
+ */
writel(CR_FEN | CR_SZ16 | CR_EN, aacirun->base + AACI_TXCR);
for (i = 0; !(readl(aacirun->base + AACI_SR) & SR_TXFF) && i < 4096; i++)
@@ -1062,10 +970,12 @@ static unsigned int __devinit aaci_size_fifo(struct aaci *aaci)
* disabling the channel doesn't clear the FIFO.
*/
writel(aaci->maincr & ~MAINCR_IE, aaci->base + AACI_MAINCR);
+ readl(aaci->base + AACI_MAINCR);
+ udelay(1);
writel(aaci->maincr, aaci->base + AACI_MAINCR);
/*
- * If we hit 4096, we failed. Go back to the specified
+ * If we hit 4096 entries, we failed. Go back to the specified
* fifo depth.
*/
if (i == 4096)
@@ -1074,7 +984,8 @@ static unsigned int __devinit aaci_size_fifo(struct aaci *aaci)
return i;
}
-static int __devinit aaci_probe(struct amba_device *dev, struct amba_id *id)
+static int aaci_probe(struct amba_device *dev,
+ const struct amba_id *id)
{
struct aaci *aaci;
int ret, i;
@@ -1089,7 +1000,7 @@ static int __devinit aaci_probe(struct amba_device *dev, struct amba_id *id)
goto out;
}
- aaci->base = ioremap(dev->res.start, SZ_4K);
+ aaci->base = ioremap(dev->res.start, resource_size(&dev->res));
if (!aaci->base) {
ret = -ENOMEM;
goto out;
@@ -1098,12 +1009,14 @@ 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;
@@ -1117,18 +1030,23 @@ static int __devinit aaci_probe(struct amba_device *dev, struct amba_id *id)
writel(0x1fff, aaci->base + AACI_INTCLR);
writel(aaci->maincr, aaci->base + AACI_MAINCR);
-
+ /*
+ * Fix: ac97 read back fail errors by reading
+ * from any arbitrary aaci register.
+ */
+ readl(aaci->base + AACI_CSCH1);
ret = aaci_probe_ac97(aaci);
if (ret)
goto out;
/*
* Size the FIFOs (must be multiple of 16).
+ * This is the number of entries in the FIFO.
*/
- aaci->fifosize = aaci_size_fifo(aaci);
- if (aaci->fifosize & 15) {
- printk(KERN_WARNING "AACI: fifosize = %d not supported\n",
- aaci->fifosize);
+ aaci->fifo_depth = aaci_size_fifo(aaci);
+ if (aaci->fifo_depth & 15) {
+ printk(KERN_WARNING "AACI: FIFO depth %d not supported\n",
+ aaci->fifo_depth);
ret = -ENODEV;
goto out;
}
@@ -1137,12 +1055,10 @@ static int __devinit aaci_probe(struct amba_device *dev, struct amba_id *id)
if (ret)
goto out;
- snd_card_set_dev(aaci->card, &dev->dev);
-
ret = snd_card_register(aaci->card);
if (ret == 0) {
- dev_info(&dev->dev, "%s, fifo %d\n", aaci->card->longname,
- aaci->fifosize);
+ dev_info(&dev->dev, "%s\n", aaci->card->longname);
+ dev_info(&dev->dev, "FIFO %u entries\n", aaci->fifo_depth);
amba_set_drvdata(dev, aaci->card);
return ret;
}
@@ -1154,12 +1070,10 @@ static int __devinit aaci_probe(struct amba_device *dev, struct amba_id *id)
return ret;
}
-static int __devexit aaci_remove(struct amba_device *dev)
+static int aaci_remove(struct amba_device *dev)
{
struct snd_card *card = amba_get_drvdata(dev);
- amba_set_drvdata(dev, NULL);
-
if (card) {
struct aaci *aaci = card->private_data;
writel(0, aaci->base + AACI_MAINCR);
@@ -1179,29 +1093,19 @@ static struct amba_id aaci_ids[] = {
{ 0, 0 },
};
+MODULE_DEVICE_TABLE(amba, aaci_ids);
+
static struct amba_driver aaci_driver = {
.drv = {
.name = DRIVER_NAME,
+ .pm = AACI_DEV_PM_OPS,
},
.probe = aaci_probe,
- .remove = __devexit_p(aaci_remove),
- .suspend = aaci_suspend,
- .resume = aaci_resume,
+ .remove = aaci_remove,
.id_table = aaci_ids,
};
-static int __init aaci_init(void)
-{
- return amba_driver_register(&aaci_driver);
-}
-
-static void __exit aaci_exit(void)
-{
- amba_driver_unregister(&aaci_driver);
-}
-
-module_init(aaci_init);
-module_exit(aaci_exit);
+module_amba_driver(aaci_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("ARM PrimeCell PL041 Advanced Audio CODEC Interface driver");
diff --git a/sound/arm/aaci.h b/sound/arm/aaci.h
index 924f69c1c44..5791bd5bd2a 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;
@@ -209,6 +210,8 @@ struct aaci_runtime {
u32 cr;
struct snd_pcm_substream *substream;
+ unsigned int period; /* byte size of a "period" */
+
/*
* PIO support
*/
@@ -216,15 +219,16 @@ struct aaci_runtime {
void *end;
void *ptr;
int bytes;
- unsigned int period;
- unsigned int fifosz;
+ unsigned int fifo_bytes;
};
struct aaci {
struct amba_device *dev;
struct snd_card *card;
void __iomem *base;
- unsigned int fifosize;
+ unsigned int fifo_depth;
+ unsigned int users;
+ struct mutex irq_lock;
/* AC'97 */
struct mutex ac97_sem;
@@ -232,7 +236,6 @@ struct aaci {
struct snd_ac97 *ac97;
u32 maincr;
- spinlock_t lock;
struct aaci_runtime playback;
struct aaci_runtime capture;
diff --git a/sound/arm/devdma.c b/sound/arm/devdma.c
deleted file mode 100644
index 9d1e6665b54..00000000000
--- a/sound/arm/devdma.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * linux/sound/arm/devdma.c
- *
- * Copyright (C) 2003-2004 Russell King, All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * ARM DMA shim for ALSA.
- */
-#include <linux/device.h>
-#include <linux/dma-mapping.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-
-#include "devdma.h"
-
-void devdma_hw_free(struct device *dev, struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct snd_dma_buffer *buf = runtime->dma_buffer_p;
-
- if (runtime->dma_area == NULL)
- return;
-
- if (buf != &substream->dma_buffer) {
- dma_free_coherent(buf->dev.dev, buf->bytes, buf->area, buf->addr);
- kfree(runtime->dma_buffer_p);
- }
-
- snd_pcm_set_runtime_buffer(substream, NULL);
-}
-
-int devdma_hw_alloc(struct device *dev, struct snd_pcm_substream *substream, size_t size)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct snd_dma_buffer *buf = runtime->dma_buffer_p;
- int ret = 0;
-
- if (buf) {
- if (buf->bytes >= size)
- goto out;
- devdma_hw_free(dev, substream);
- }
-
- if (substream->dma_buffer.area != NULL && substream->dma_buffer.bytes >= size) {
- buf = &substream->dma_buffer;
- } else {
- buf = kmalloc(sizeof(struct snd_dma_buffer), GFP_KERNEL);
- if (!buf)
- goto nomem;
-
- buf->dev.type = SNDRV_DMA_TYPE_DEV;
- buf->dev.dev = dev;
- buf->area = dma_alloc_coherent(dev, size, &buf->addr, GFP_KERNEL);
- buf->bytes = size;
- buf->private_data = NULL;
-
- if (!buf->area)
- goto free;
- }
- snd_pcm_set_runtime_buffer(substream, buf);
- ret = 1;
- out:
- runtime->dma_bytes = size;
- return ret;
-
- free:
- kfree(buf);
- nomem:
- return -ENOMEM;
-}
-
-int devdma_mmap(struct device *dev, struct snd_pcm_substream *substream, struct vm_area_struct *vma)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- return dma_mmap_coherent(dev, vma, runtime->dma_area, runtime->dma_addr, runtime->dma_bytes);
-}
diff --git a/sound/arm/devdma.h b/sound/arm/devdma.h
deleted file mode 100644
index d025329c8a0..00000000000
--- a/sound/arm/devdma.h
+++ /dev/null
@@ -1,3 +0,0 @@
-void devdma_hw_free(struct device *dev, struct snd_pcm_substream *substream);
-int devdma_hw_alloc(struct device *dev, struct snd_pcm_substream *substream, size_t size);
-int devdma_mmap(struct device *dev, struct snd_pcm_substream *substream, struct vm_area_struct *vma);
diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c
index 6fdca97186e..66de90ed30c 100644
--- a/sound/arm/pxa2xx-ac97-lib.c
+++ b/sound/arm/pxa2xx-ac97-lib.c
@@ -16,13 +16,15 @@
#include <linux/interrupt.h>
#include <linux/clk.h>
#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
#include <sound/ac97_codec.h>
#include <sound/pxa2xx-lib.h>
-#include <asm/irq.h>
+#include <mach/irqs.h>
#include <mach/regs-ac97.h>
-#include <mach/pxa2xx-gpio.h>
#include <mach/audio.h>
static DEFINE_MUTEX(car_mutex);
@@ -32,6 +34,8 @@ static struct clk *ac97_clk;
static struct clk *ac97conf_clk;
static int reset_gpio;
+extern void pxa27x_configure_ac97reset(int reset_gpio, bool to_gpio);
+
/*
* Beware PXA27x bugs:
*
@@ -42,45 +46,6 @@ static int reset_gpio;
* 1 jiffy timeout if interrupt never comes).
*/
-enum {
- RESETGPIO_FORCE_HIGH,
- RESETGPIO_FORCE_LOW,
- RESETGPIO_NORMAL_ALTFUNC
-};
-
-/**
- * set_resetgpio_mode - computes and sets the AC97_RESET gpio mode on PXA
- * @mode: chosen action
- *
- * As the PXA27x CPUs suffer from a AC97 bug, a manual control of the reset line
- * must be done to insure proper work of AC97 reset line. This function
- * computes the correct gpio_mode for further use by reset functions, and
- * applied the change through pxa_gpio_mode.
- */
-static void set_resetgpio_mode(int resetgpio_action)
-{
- int mode = 0;
-
- if (reset_gpio)
- switch (resetgpio_action) {
- case RESETGPIO_NORMAL_ALTFUNC:
- if (reset_gpio == 113)
- mode = 113 | GPIO_ALT_FN_2_OUT;
- if (reset_gpio == 95)
- mode = 95 | GPIO_ALT_FN_1_OUT;
- break;
- case RESETGPIO_FORCE_LOW:
- mode = reset_gpio | GPIO_OUT | GPIO_DFLT_LOW;
- break;
- case RESETGPIO_FORCE_HIGH:
- mode = reset_gpio | GPIO_OUT | GPIO_DFLT_HIGH;
- break;
- };
-
- if (mode)
- pxa_gpio_mode(mode);
-}
-
unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
{
unsigned short val = -1;
@@ -152,8 +117,7 @@ static inline void pxa_ac97_warm_pxa25x(void)
{
gsr_bits = 0;
- GCR |= GCR_WARM_RST | GCR_PRIRDY_IEN | GCR_SECRDY_IEN;
- wait_event_timeout(gsr_wq, gsr_bits & (GSR_PCR | GSR_SCR), 1);
+ GCR |= GCR_WARM_RST;
}
static inline void pxa_ac97_cold_pxa25x(void)
@@ -164,8 +128,6 @@ static inline void pxa_ac97_cold_pxa25x(void)
gsr_bits = 0;
GCR = GCR_COLD_RST;
- GCR |= GCR_CDONE_IE|GCR_SDONE_IE;
- wait_event_timeout(gsr_wq, gsr_bits & (GSR_PCR | GSR_SCR), 1);
}
#endif
@@ -174,12 +136,11 @@ static inline void pxa_ac97_warm_pxa27x(void)
{
gsr_bits = 0;
- /* warm reset broken on Bulverde,
- so manually keep AC97 reset high */
- set_resetgpio_mode(RESETGPIO_FORCE_HIGH);
+ /* warm reset broken on Bulverde, so manually keep AC97 reset high */
+ pxa27x_configure_ac97reset(reset_gpio, true);
udelay(10);
GCR |= GCR_WARM_RST;
- set_resetgpio_mode(RESETGPIO_NORMAL_ALTFUNC);
+ pxa27x_configure_ac97reset(reset_gpio, false);
udelay(500);
}
@@ -194,28 +155,21 @@ static inline void pxa_ac97_cold_pxa27x(void)
clk_enable(ac97conf_clk);
udelay(5);
clk_disable(ac97conf_clk);
- GCR = GCR_COLD_RST;
- udelay(50);
+ GCR = GCR_COLD_RST | GCR_WARM_RST;
}
#endif
#ifdef CONFIG_PXA3xx
static inline void pxa_ac97_warm_pxa3xx(void)
{
- int timeout = 100;
-
gsr_bits = 0;
/* Can't use interrupts */
GCR |= GCR_WARM_RST;
- while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--)
- mdelay(1);
}
static inline void pxa_ac97_cold_pxa3xx(void)
{
- int timeout = 1000;
-
/* Hold CLKBPB for 100us */
GCR = 0;
GCR = GCR_CLKBPB;
@@ -231,14 +185,13 @@ static inline void pxa_ac97_cold_pxa3xx(void)
GCR &= ~(GCR_PRIRDY_IEN|GCR_SECRDY_IEN);
GCR = GCR_WARM_RST | GCR_COLD_RST;
- while (!(GSR & (GSR_PCR | GSR_SCR)) && timeout--)
- mdelay(10);
}
#endif
bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
{
unsigned long gsr;
+ unsigned int timeout = 100;
#ifdef CONFIG_PXA25x
if (cpu_is_pxa25x())
@@ -255,7 +208,11 @@ bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
pxa_ac97_warm_pxa3xx();
else
#endif
- BUG();
+ snd_BUG();
+
+ while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--)
+ mdelay(1);
+
gsr = GSR | gsr_bits;
if (!(gsr & (GSR_PCR | GSR_SCR))) {
printk(KERN_INFO "%s: warm reset timeout (GSR=%#lx)\n",
@@ -271,6 +228,7 @@ EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_warm_reset);
bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
{
unsigned long gsr;
+ unsigned int timeout = 1000;
#ifdef CONFIG_PXA25x
if (cpu_is_pxa25x())
@@ -287,7 +245,10 @@ bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
pxa_ac97_cold_pxa3xx();
else
#endif
- BUG();
+ snd_BUG();
+
+ while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--)
+ mdelay(1);
gsr = GSR | gsr_bits;
if (!(gsr & (GSR_PCR | GSR_SCR))) {
@@ -345,23 +306,13 @@ EXPORT_SYMBOL_GPL(pxa2xx_ac97_hw_suspend);
int pxa2xx_ac97_hw_resume(void)
{
- if (cpu_is_pxa25x() || cpu_is_pxa27x()) {
- pxa_gpio_mode(GPIO31_SYNC_AC97_MD);
- pxa_gpio_mode(GPIO30_SDATA_OUT_AC97_MD);
- pxa_gpio_mode(GPIO28_BITCLK_AC97_MD);
- pxa_gpio_mode(GPIO29_SDATA_IN_AC97_MD);
- }
- if (cpu_is_pxa27x()) {
- /* Use GPIO 113 or 95 as AC97 Reset on Bulverde */
- set_resetgpio_mode(RESETGPIO_NORMAL_ALTFUNC);
- }
clk_enable(ac97_clk);
return 0;
}
EXPORT_SYMBOL_GPL(pxa2xx_ac97_hw_resume);
#endif
-int __devinit pxa2xx_ac97_hw_probe(struct platform_device *dev)
+int pxa2xx_ac97_hw_probe(struct platform_device *dev)
{
int ret;
pxa2xx_audio_ops_t *pdata = dev->dev.platform_data;
@@ -386,16 +337,22 @@ int __devinit pxa2xx_ac97_hw_probe(struct platform_device *dev)
reset_gpio = 113;
}
- if (cpu_is_pxa25x() || cpu_is_pxa27x()) {
- pxa_gpio_mode(GPIO31_SYNC_AC97_MD);
- pxa_gpio_mode(GPIO30_SDATA_OUT_AC97_MD);
- pxa_gpio_mode(GPIO28_BITCLK_AC97_MD);
- pxa_gpio_mode(GPIO29_SDATA_IN_AC97_MD);
- }
-
if (cpu_is_pxa27x()) {
- /* Use GPIO 113 as AC97 Reset on Bulverde */
- set_resetgpio_mode(RESETGPIO_NORMAL_ALTFUNC);
+ /*
+ * This gpio is needed for a work-around to a bug in the ac97
+ * controller during warm reset. The direction and level is set
+ * here so that it is an output driven high when switching from
+ * AC97_nRESET alt function to generic gpio.
+ */
+ ret = gpio_request_one(reset_gpio, GPIOF_OUT_INIT_HIGH,
+ "pxa27x ac97 reset");
+ if (ret < 0) {
+ pr_err("%s: gpio_request_one() failed: %d\n",
+ __func__, ret);
+ goto err_conf;
+ }
+ pxa27x_configure_ac97reset(reset_gpio, false);
+
ac97conf_clk = clk_get(&dev->dev, "AC97CONFCLK");
if (IS_ERR(ac97conf_clk)) {
ret = PTR_ERR(ac97conf_clk);
@@ -415,7 +372,7 @@ int __devinit pxa2xx_ac97_hw_probe(struct platform_device *dev)
if (ret)
goto err_clk2;
- ret = request_irq(IRQ_AC97, pxa2xx_ac97_irq, IRQF_DISABLED, "AC97", NULL);
+ ret = request_irq(IRQ_AC97, pxa2xx_ac97_irq, 0, "AC97", NULL);
if (ret < 0)
goto err_irq;
@@ -438,6 +395,8 @@ EXPORT_SYMBOL_GPL(pxa2xx_ac97_hw_probe);
void pxa2xx_ac97_hw_remove(struct platform_device *dev)
{
+ if (cpu_is_pxa27x())
+ gpio_free(reset_gpio);
GCR |= GCR_ACLINK_OFF;
free_irq(IRQ_AC97, NULL);
if (ac97conf_clk) {
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index c570ebd9d17..3a10df6688e 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -11,14 +11,17 @@
*/
#include <linux/init.h>
+#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/dmaengine.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <sound/pxa2xx-lib.h>
+#include <sound/dmaengine_pcm.h>
#include <mach/regs-ac97.h>
#include <mach/audio.h>
@@ -40,20 +43,20 @@ static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
.reset = pxa2xx_ac97_reset,
};
-static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_out = {
- .name = "AC97 PCM out",
- .dev_addr = __PREG(PCDR),
- .drcmr = &DRCMR(12),
- .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
- DCMD_BURST32 | DCMD_WIDTH4,
+static unsigned long pxa2xx_ac97_pcm_out_req = 12;
+static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_out = {
+ .addr = __PREG(PCDR),
+ .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
+ .maxburst = 32,
+ .filter_data = &pxa2xx_ac97_pcm_out_req,
};
-static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_in = {
- .name = "AC97 PCM in",
- .dev_addr = __PREG(PCDR),
- .drcmr = &DRCMR(11),
- .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
- DCMD_BURST32 | DCMD_WIDTH4,
+static unsigned long pxa2xx_ac97_pcm_in_req = 11;
+static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_in = {
+ .addr = __PREG(PCDR),
+ .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
+ .maxburst = 32,
+ .filter_data = &pxa2xx_ac97_pcm_in_req,
};
static struct snd_pcm *pxa2xx_ac97_pcm;
@@ -105,9 +108,9 @@ static struct pxa2xx_pcm_client pxa2xx_ac97_pcm_client = {
.prepare = pxa2xx_ac97_pcm_prepare,
};
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
-static int pxa2xx_ac97_do_suspend(struct snd_card *card, pm_message_t state)
+static int pxa2xx_ac97_do_suspend(struct snd_card *card)
{
pxa2xx_audio_ops_t *platform_ops = card->dev->platform_data;
@@ -137,20 +140,20 @@ static int pxa2xx_ac97_do_resume(struct snd_card *card)
return 0;
}
-static int pxa2xx_ac97_suspend(struct platform_device *dev, pm_message_t state)
+static int pxa2xx_ac97_suspend(struct device *dev)
{
- struct snd_card *card = platform_get_drvdata(dev);
+ struct snd_card *card = dev_get_drvdata(dev);
int ret = 0;
if (card)
- ret = pxa2xx_ac97_do_suspend(card, PMSG_SUSPEND);
+ ret = pxa2xx_ac97_do_suspend(card);
return ret;
}
-static int pxa2xx_ac97_resume(struct platform_device *dev)
+static int pxa2xx_ac97_resume(struct device *dev)
{
- struct snd_card *card = platform_get_drvdata(dev);
+ struct snd_card *card = dev_get_drvdata(dev);
int ret = 0;
if (card)
@@ -159,25 +162,29 @@ static int pxa2xx_ac97_resume(struct platform_device *dev)
return ret;
}
-#else
-#define pxa2xx_ac97_suspend NULL
-#define pxa2xx_ac97_resume NULL
+static SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm_ops, pxa2xx_ac97_suspend, pxa2xx_ac97_resume);
#endif
-static int __devinit pxa2xx_ac97_probe(struct platform_device *dev)
+static int pxa2xx_ac97_probe(struct platform_device *dev)
{
struct snd_card *card;
struct snd_ac97_bus *ac97_bus;
struct snd_ac97_template ac97_template;
int ret;
+ pxa2xx_audio_ops_t *pdata = dev->dev.platform_data;
+
+ if (dev->id >= 0) {
+ dev_err(&dev->dev, "PXA2xx has only one AC97 port.\n");
+ ret = -ENXIO;
+ goto err_dev;
+ }
- ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
- THIS_MODULE, 0, &card);
+ ret = snd_card_new(&dev->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
+ THIS_MODULE, 0, &card);
if (ret < 0)
goto err;
- card->dev = &dev->dev;
- strncpy(card->driver, dev->dev.driver->name, sizeof(card->driver));
+ strlcpy(card->driver, dev->dev.driver->name, sizeof(card->driver));
ret = pxa2xx_pcm_new(card, &pxa2xx_ac97_pcm_client, &pxa2xx_ac97_pcm);
if (ret)
@@ -200,7 +207,8 @@ static int __devinit pxa2xx_ac97_probe(struct platform_device *dev)
snprintf(card->longname, sizeof(card->longname),
"%s (%s)", dev->dev.driver->name, card->mixername);
- snd_card_set_dev(card, &dev->dev);
+ if (pdata && pdata->codec_pdata[0])
+ snd_ac97_dev_add_pdata(ac97_bus->codec[0], pdata->codec_pdata[0]);
ret = snd_card_register(card);
if (ret == 0) {
platform_set_drvdata(dev, card);
@@ -212,16 +220,16 @@ err_remove:
err:
if (card)
snd_card_free(card);
+err_dev:
return ret;
}
-static int __devexit pxa2xx_ac97_remove(struct platform_device *dev)
+static int pxa2xx_ac97_remove(struct platform_device *dev)
{
struct snd_card *card = platform_get_drvdata(dev);
if (card) {
snd_card_free(card);
- platform_set_drvdata(dev, NULL);
pxa2xx_ac97_hw_remove(dev);
}
@@ -230,27 +238,17 @@ static int __devexit pxa2xx_ac97_remove(struct platform_device *dev)
static struct platform_driver pxa2xx_ac97_driver = {
.probe = pxa2xx_ac97_probe,
- .remove = __devexit_p(pxa2xx_ac97_remove),
- .suspend = pxa2xx_ac97_suspend,
- .resume = pxa2xx_ac97_resume,
+ .remove = pxa2xx_ac97_remove,
.driver = {
.name = "pxa2xx-ac97",
.owner = THIS_MODULE,
+#ifdef CONFIG_PM_SLEEP
+ .pm = &pxa2xx_ac97_pm_ops,
+#endif
},
};
-static int __init pxa2xx_ac97_init(void)
-{
- return platform_driver_register(&pxa2xx_ac97_driver);
-}
-
-static void __exit pxa2xx_ac97_exit(void)
-{
- platform_driver_unregister(&pxa2xx_ac97_driver);
-}
-
-module_init(pxa2xx_ac97_init);
-module_exit(pxa2xx_ac97_exit);
+module_platform_driver(pxa2xx_ac97_driver);
MODULE_AUTHOR("Nicolas Pitre");
MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
diff --git a/sound/arm/pxa2xx-pcm-lib.c b/sound/arm/pxa2xx-pcm-lib.c
index 108b643229b..a61d7a9a995 100644
--- a/sound/arm/pxa2xx-pcm-lib.c
+++ b/sound/arm/pxa2xx-pcm-lib.c
@@ -4,13 +4,16 @@
* published by the Free Software Foundation.
*/
+#include <linux/slab.h>
#include <linux/module.h>
#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/pxa2xx-lib.h>
+#include <sound/dmaengine_pcm.h>
#include <mach/dma.h>
@@ -42,6 +45,35 @@ int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
size_t period = params_period_bytes(params);
pxa_dma_desc *dma_desc;
dma_addr_t dma_buff_phys, next_desc_phys;
+ u32 dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG;
+
+ /* temporary transition hack */
+ switch (rtd->params->addr_width) {
+ case DMA_SLAVE_BUSWIDTH_1_BYTE:
+ dcmd |= DCMD_WIDTH1;
+ break;
+ case DMA_SLAVE_BUSWIDTH_2_BYTES:
+ dcmd |= DCMD_WIDTH2;
+ break;
+ case DMA_SLAVE_BUSWIDTH_4_BYTES:
+ dcmd |= DCMD_WIDTH4;
+ break;
+ default:
+ /* can't happen */
+ break;
+ }
+
+ switch (rtd->params->maxburst) {
+ case 8:
+ dcmd |= DCMD_BURST8;
+ break;
+ case 16:
+ dcmd |= DCMD_BURST16;
+ break;
+ case 32:
+ dcmd |= DCMD_BURST32;
+ break;
+ }
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
runtime->dma_bytes = totsize;
@@ -54,14 +86,14 @@ int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
dma_desc->ddadr = next_desc_phys;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
dma_desc->dsadr = dma_buff_phys;
- dma_desc->dtadr = rtd->params->dev_addr;
+ dma_desc->dtadr = rtd->params->addr;
} else {
- dma_desc->dsadr = rtd->params->dev_addr;
+ dma_desc->dsadr = rtd->params->addr;
dma_desc->dtadr = dma_buff_phys;
}
if (period > totsize)
period = totsize;
- dma_desc->dcmd = rtd->params->dcmd | period | DCMD_ENDIRQEN;
+ dma_desc->dcmd = dcmd | period | DCMD_ENDIRQEN;
dma_desc++;
dma_buff_phys += period;
} while (totsize -= period);
@@ -75,8 +107,10 @@ int __pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream)
{
struct pxa2xx_runtime_data *rtd = substream->runtime->private_data;
- if (rtd && rtd->params)
- *rtd->params->drcmr = 0;
+ if (rtd && rtd->params && rtd->params->filter_data) {
+ unsigned long req = *(unsigned long *) rtd->params->filter_data;
+ DRCMR(req) = 0;
+ }
snd_pcm_set_runtime_buffer(substream, NULL);
return 0;
@@ -135,11 +169,19 @@ EXPORT_SYMBOL(pxa2xx_pcm_pointer);
int __pxa2xx_pcm_prepare(struct snd_pcm_substream *substream)
{
struct pxa2xx_runtime_data *prtd = substream->runtime->private_data;
+ unsigned long req;
+
+ if (!prtd || !prtd->params)
+ return 0;
+
+ if (prtd->dma_ch == -1)
+ return -EINVAL;
DCSR(prtd->dma_ch) &= ~DCSR_RUN;
DCSR(prtd->dma_ch) = 0;
DCMD(prtd->dma_ch) = 0;
- *prtd->params->drcmr = prtd->dma_ch | DRCMR_MAPVLD;
+ req = *(unsigned long *) prtd->params->filter_data;
+ DRCMR(req) = prtd->dma_ch | DRCMR_MAPVLD;
return 0;
}
@@ -148,7 +190,6 @@ EXPORT_SYMBOL(__pxa2xx_pcm_prepare);
void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id)
{
struct snd_pcm_substream *substream = dev_id;
- struct pxa2xx_runtime_data *rtd = substream->runtime->private_data;
int dcsr;
dcsr = DCSR(dma_ch);
@@ -157,9 +198,11 @@ void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id)
if (dcsr & DCSR_ENDINTR) {
snd_pcm_period_elapsed(substream);
} else {
- printk(KERN_ERR "%s: DMA error on channel %d (DCSR=%#x)\n",
- rtd->params->name, dma_ch, dcsr);
+ printk(KERN_ERR "DMA error on channel %d (DCSR=%#x)\n",
+ dma_ch, dcsr);
+ snd_pcm_stream_lock(substream);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
+ snd_pcm_stream_unlock(substream);
}
}
EXPORT_SYMBOL(pxa2xx_pcm_dma_irq);
@@ -202,6 +245,7 @@ int __pxa2xx_pcm_open(struct snd_pcm_substream *substream)
if (!rtd->dma_desc_array)
goto err1;
+ rtd->dma_ch = -1;
runtime->private_data = rtd;
return 0;
diff --git a/sound/arm/pxa2xx-pcm.c b/sound/arm/pxa2xx-pcm.c
index 535704f7749..83be8e3f095 100644
--- a/sound/arm/pxa2xx-pcm.c
+++ b/sound/arm/pxa2xx-pcm.c
@@ -10,8 +10,15 @@
* published by the Free Software Foundation.
*/
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
+
+#include <mach/dma.h>
+
#include <sound/core.h>
#include <sound/pxa2xx-lib.h>
+#include <sound/dmaengine_pcm.h>
#include "pxa2xx-pcm.h"
@@ -39,7 +46,7 @@ static int pxa2xx_pcm_open(struct snd_pcm_substream *substream)
rtd->params = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
client->playback_params : client->capture_params;
- ret = pxa_request_dma(rtd->params->name, DMA_PRIO_LOW,
+ ret = pxa_request_dma("dma", DMA_PRIO_LOW,
pxa2xx_pcm_dma_irq, substream);
if (ret < 0)
goto err2;
@@ -79,8 +86,6 @@ static struct snd_pcm_ops pxa2xx_pcm_ops = {
.mmap = pxa2xx_pcm_mmap,
};
-static u64 pxa2xx_pcm_dmamask = 0xffffffff;
-
int pxa2xx_pcm_new(struct snd_card *card, struct pxa2xx_pcm_client *client,
struct snd_pcm **rpcm)
{
@@ -96,10 +101,9 @@ int pxa2xx_pcm_new(struct snd_card *card, struct pxa2xx_pcm_client *client,
pcm->private_data = client;
pcm->private_free = pxa2xx_pcm_free_dma_buffers;
- if (!card->dev->dma_mask)
- card->dev->dma_mask = &pxa2xx_pcm_dmamask;
- if (!card->dev->coherent_dma_mask)
- card->dev->coherent_dma_mask = 0xffffffff;
+ ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+ if (ret)
+ goto out;
if (play) {
int stream = SNDRV_PCM_STREAM_PLAYBACK;
diff --git a/sound/arm/pxa2xx-pcm.h b/sound/arm/pxa2xx-pcm.h
index 65f86b56ba4..00330985bee 100644
--- a/sound/arm/pxa2xx-pcm.h
+++ b/sound/arm/pxa2xx-pcm.h
@@ -9,18 +9,17 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#include <mach/dma.h>
struct pxa2xx_runtime_data {
int dma_ch;
- struct pxa2xx_pcm_dma_params *params;
- pxa_dma_desc *dma_desc_array;
+ struct snd_dmaengine_dai_dma_data *params;
+ struct pxa_dma_desc *dma_desc_array;
dma_addr_t dma_desc_array_phys;
};
struct pxa2xx_pcm_client {
- struct pxa2xx_pcm_dma_params *playback_params;
- struct pxa2xx_pcm_dma_params *capture_params;
+ struct snd_dmaengine_dai_dma_data *playback_params;
+ struct snd_dmaengine_dai_dma_data *capture_params;
int (*startup)(struct snd_pcm_substream *);
void (*shutdown)(struct snd_pcm_substream *);
int (*prepare)(struct snd_pcm_substream *);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 03:57:06 +0000