#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/err.h>
+#include <linux/amba/bus.h>
+#include <linux/io.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/hardware/amba.h>
-
-#include <sound/driver.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/ac97_codec.h>
#include <sound/pcm_params.h>
#include "aaci.h"
-#include "devdma.h"
#define DRIVER_NAME "aaci-pl041"
*/
#undef CONFIG_PM
-static void aaci_ac97_select_codec(struct aaci *aaci, ac97_t *ac97)
+static void aaci_ac97_select_codec(struct aaci *aaci, struct snd_ac97 *ac97)
{
u32 v, maincr = aaci->maincr | MAINCR_SCRA(ac97->num);
* SI1TxEn, SI2TxEn and SI12TxEn bits are set in the AACI_MAINCR
* register.
*/
-static void aaci_ac97_write(ac97_t *ac97, unsigned short reg, unsigned short val)
+static void aaci_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
+ unsigned short val)
{
struct aaci *aaci = ac97->private_data;
u32 v;
+ int timeout = 5000;
if (ac97->num >= 4)
return;
- down(&aaci->ac97_sem);
+ mutex_lock(&aaci->ac97_sem);
aaci_ac97_select_codec(aaci, ac97);
*/
do {
v = readl(aaci->base + AACI_SLFR);
- } while (v & (SLFR_1TXB|SLFR_2TXB));
+ } while ((v & (SLFR_1TXB|SLFR_2TXB)) && --timeout);
+
+ if (!timeout)
+ dev_err(&aaci->dev->dev,
+ "timeout waiting for write to complete\n");
- up(&aaci->ac97_sem);
+ mutex_unlock(&aaci->ac97_sem);
}
/*
* Read an AC'97 register.
*/
-static unsigned short aaci_ac97_read(ac97_t *ac97, unsigned short reg)
+static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
{
struct aaci *aaci = ac97->private_data;
u32 v;
+ int timeout = 5000;
+ int retries = 10;
if (ac97->num >= 4)
return ~0;
- down(&aaci->ac97_sem);
+ mutex_lock(&aaci->ac97_sem);
aaci_ac97_select_codec(aaci, ac97);
*/
do {
v = readl(aaci->base + AACI_SLFR);
- } while (v & SLFR_1TXB);
+ } while ((v & SLFR_1TXB) && --timeout);
+
+ if (!timeout) {
+ 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
/*
* Wait for slot 2 to indicate data.
*/
+ timeout = 5000;
do {
cond_resched();
v = readl(aaci->base + AACI_SLFR) & (SLFR_1RXV|SLFR_2RXV);
- } while (v != (SLFR_1RXV|SLFR_2RXV));
+ } while ((v != (SLFR_1RXV|SLFR_2RXV)) && --timeout);
- v = readl(aaci->base + AACI_SL1RX) >> 12;
- if (v == reg) {
- v = readl(aaci->base + AACI_SL2RX) >> 4;
- } else {
- dev_err(&aaci->dev->dev,
- "wrong ac97 register read back (%x != %x)\n",
- v, reg);
+ if (!timeout) {
+ dev_err(&aaci->dev->dev, "timeout on RX valid\n");
v = ~0;
+ goto out;
}
- up(&aaci->ac97_sem);
+ do {
+ v = readl(aaci->base + AACI_SL1RX) >> 12;
+ if (v == reg) {
+ v = readl(aaci->base + AACI_SL2RX) >> 4;
+ break;
+ } else if (--retries) {
+ dev_warn(&aaci->dev->dev,
+ "ac97 read back fail. retry\n");
+ continue;
+ } else {
+ dev_warn(&aaci->dev->dev,
+ "wrong ac97 register read back (%x != %x)\n",
+ v, reg);
+ v = ~0;
+ }
+ } while (retries);
+ out:
+ mutex_unlock(&aaci->ac97_sem);
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--);
}
/*
* Interrupt support.
*/
-static void aaci_fifo_irq(struct aaci *aaci, u32 mask)
+static void aaci_fifo_irq(struct aaci *aaci, int channel, u32 mask)
{
+ if (mask & ISR_ORINTR) {
+ dev_warn(&aaci->dev->dev, "RX overrun on chan %d\n", channel);
+ writel(ICLR_RXOEC1 << channel, aaci->base + AACI_INTCLR);
+ }
+
+ if (mask & ISR_RXTOINTR) {
+ dev_warn(&aaci->dev->dev, "RX timeout on chan %d\n", channel);
+ writel(ICLR_RXTOFEC1 << channel, aaci->base + AACI_INTCLR);
+ }
+
+ if (mask & ISR_RXINTR) {
+ struct aaci_runtime *aacirun = &aaci->capture;
+ void *ptr;
+
+ if (!aacirun->substream || !aacirun->start) {
+ dev_warn(&aaci->dev->dev, "RX interrupt???\n");
+ writel(0, aacirun->base + AACI_IE);
+ return;
+ }
+
+ spin_lock(&aacirun->lock);
+
+ ptr = aacirun->ptr;
+ do {
+ unsigned int len = aacirun->fifosz;
+ u32 val;
+
+ if (aacirun->bytes <= 0) {
+ aacirun->bytes += aacirun->period;
+ aacirun->ptr = ptr;
+ spin_unlock(&aacirun->lock);
+ snd_pcm_period_elapsed(aacirun->substream);
+ spin_lock(&aacirun->lock);
+ }
+ if (!(aacirun->cr & CR_EN))
+ break;
+
+ val = readl(aacirun->base + AACI_SR);
+ if (!(val & SR_RXHF))
+ break;
+ if (!(val & SR_RXFF))
+ len >>= 1;
+
+ aacirun->bytes -= len;
+
+ /* reading 16 bytes at a time */
+ for( ; len > 0; len -= 16) {
+ asm(
+ "ldmia %1, {r0, r1, r2, r3}\n\t"
+ "stmia %0!, {r0, r1, r2, r3}"
+ : "+r" (ptr)
+ : "r" (aacirun->fifo)
+ : "r0", "r1", "r2", "r3", "cc");
+
+ if (ptr >= aacirun->end)
+ ptr = aacirun->start;
+ }
+ } while(1);
+
+ aacirun->ptr = ptr;
+
+ spin_unlock(&aacirun->lock);
+ }
+
if (mask & ISR_URINTR) {
- writel(ICLR_TXUEC1, aaci->base + AACI_INTCLR);
+ dev_dbg(&aaci->dev->dev, "TX underrun on chan %d\n", channel);
+ writel(ICLR_TXUEC1 << channel, aaci->base + AACI_INTCLR);
}
if (mask & ISR_TXINTR) {
void *ptr;
if (!aacirun->substream || !aacirun->start) {
- dev_warn(&aaci->dev->dev, "TX interrupt???");
+ dev_warn(&aaci->dev->dev, "TX interrupt???\n");
writel(0, aacirun->base + AACI_IE);
return;
}
+ spin_lock(&aacirun->lock);
+
ptr = aacirun->ptr;
do {
unsigned int len = aacirun->fifosz;
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 & TXCR_TXEN))
+ if (!(aacirun->cr & CR_EN))
break;
val = readl(aacirun->base + AACI_SR);
} while (1);
aacirun->ptr = ptr;
+
+ spin_unlock(&aacirun->lock);
}
}
-static irqreturn_t aaci_irq(int irq, void *devid, struct pt_regs *regs)
+static irqreturn_t aaci_irq(int irq, void *devid)
{
struct aaci *aaci = devid;
u32 mask;
int i;
- spin_lock(&aaci->lock);
mask = readl(aaci->base + AACI_ALLINTS);
if (mask) {
u32 m = mask;
for (i = 0; i < 4; i++, m >>= 7) {
if (m & 0x7f) {
- aaci_fifo_irq(aaci, m);
+ aaci_fifo_irq(aaci, i, m);
}
}
}
- spin_unlock(&aaci->lock);
return mask ? IRQ_HANDLED : IRQ_NONE;
}
/*
* 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(snd_pcm_hw_params_t *p, snd_pcm_hw_rule_t *rule)
-{
- struct aaci *aaci = rule->private;
- unsigned int rate_mask = SNDRV_PCM_RATE_8000_48000|SNDRV_PCM_RATE_5512;
- snd_interval_t *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 snd_pcm_hardware_t aaci_hw_info = {
+static struct snd_pcm_hardware aaci_hw_info = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
*/
.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,
.periods_max = PAGE_SIZE / 16,
};
-static int aaci_pcm_open(struct aaci *aaci, snd_pcm_substream_t *substream,
- struct aaci_runtime *aacirun)
+static int __aaci_pcm_open(struct aaci *aaci,
+ struct snd_pcm_substream *substream,
+ struct aaci_runtime *aacirun)
{
- snd_pcm_runtime_t *runtime = substream->runtime;
+ struct snd_pcm_runtime *runtime = substream->runtime;
int ret;
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
*/
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, SA_SHIRQ|SA_INTERRUPT,
+ ret = request_irq(aaci->dev->irq[0], aaci_irq, IRQF_SHARED|IRQF_DISABLED,
DRIVER_NAME, aaci);
if (ret)
goto out;
/*
* Common ALSA stuff
*/
-static int aaci_pcm_close(snd_pcm_substream_t *substream)
+static int aaci_pcm_close(struct snd_pcm_substream *substream)
{
struct aaci *aaci = substream->private_data;
struct aaci_runtime *aacirun = substream->runtime->private_data;
- WARN_ON(aacirun->cr & TXCR_TXEN);
+ WARN_ON(aacirun->cr & CR_EN);
aacirun->substream = NULL;
free_irq(aaci->dev->irq[0], aaci);
return 0;
}
-static int aaci_pcm_hw_free(snd_pcm_substream_t *substream)
+static int aaci_pcm_hw_free(struct snd_pcm_substream *substream)
{
struct aaci_runtime *aacirun = substream->runtime->private_data;
/*
* This must not be called with the device enabled.
*/
- WARN_ON(aacirun->cr & TXCR_TXEN);
+ WARN_ON(aacirun->cr & CR_EN);
if (aacirun->pcm_open)
snd_ac97_pcm_close(aacirun->pcm);
/*
* Clear out the DMA and any allocated buffers.
*/
- devdma_hw_free(NULL, substream);
+ snd_pcm_lib_free_pages(substream);
return 0;
}
-static int aaci_pcm_hw_params(snd_pcm_substream_t *substream,
+static int aaci_pcm_hw_params(struct snd_pcm_substream *substream,
struct aaci_runtime *aacirun,
- snd_pcm_hw_params_t *params)
+ struct snd_pcm_hw_params *params)
{
int err;
+ struct aaci *aaci = substream->private_data;
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;
+ err = snd_pcm_lib_malloc_pages(substream,
+ params_buffer_bytes(params));
+ 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;
}
-static int aaci_pcm_prepare(snd_pcm_substream_t *substream)
+static int aaci_pcm_prepare(struct snd_pcm_substream *substream)
{
- snd_pcm_runtime_t *runtime = substream->runtime;
+ 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->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);
return 0;
}
-static snd_pcm_uframes_t aaci_pcm_pointer(snd_pcm_substream_t *substream)
+static snd_pcm_uframes_t aaci_pcm_pointer(struct snd_pcm_substream *substream)
{
- snd_pcm_runtime_t *runtime = substream->runtime;
+ struct snd_pcm_runtime *runtime = substream->runtime;
struct aaci_runtime *aacirun = runtime->private_data;
ssize_t bytes = aacirun->ptr - aacirun->start;
return bytes_to_frames(runtime, bytes);
}
-static int aaci_pcm_mmap(snd_pcm_substream_t *substream, struct vm_area_struct *vma)
-{
- return devdma_mmap(NULL, substream, vma);
-}
-
/*
* Playback specific ALSA stuff
*/
static const u32 channels_to_txmask[] = {
- [2] = TXCR_TX3 | TXCR_TX4,
- [4] = TXCR_TX3 | TXCR_TX4 | TXCR_TX7 | TXCR_TX8,
- [6] = TXCR_TX3 | TXCR_TX4 | TXCR_TX7 | TXCR_TX8 | TXCR_TX6 | TXCR_TX9,
+ [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 unsigned int channel_list[] = { 2, 4, 6 };
static int
-aaci_rule_channels(snd_pcm_hw_params_t *p, snd_pcm_hw_rule_t *rule)
+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;
chan_mask);
}
-static int aaci_pcm_playback_open(snd_pcm_substream_t *substream)
+static int aaci_pcm_open(struct snd_pcm_substream *substream)
{
struct aaci *aaci = substream->private_data;
int ret;
if (ret)
return ret;
- return aaci_pcm_open(aaci, substream, &aaci->playback);
+ 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(snd_pcm_substream_t *substream,
- snd_pcm_hw_params_t *params)
+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;
* Enable FIFO, compact mode, 16 bits per sample.
* FIXME: double rate slots?
*/
- if (ret >= 0) {
- aacirun->cr = TXCR_FEN | TXCR_COMPACT | TXCR_TSZ16;
+ if (ret >= 0)
aacirun->cr |= channels_to_txmask[channels];
- aacirun->fifosz = aaci->fifosize * 4;
- if (aacirun->cr & TXCR_COMPACT)
- aacirun->fifosz >>= 1;
- }
return ret;
}
ie = readl(aacirun->base + AACI_IE);
ie &= ~(IE_URIE|IE_TXIE);
writel(ie, aacirun->base + AACI_IE);
- aacirun->cr &= ~TXCR_TXEN;
- aaci_chan_wait_ready(aacirun);
+ aacirun->cr &= ~CR_EN;
+ aaci_chan_wait_ready(aacirun, SR_TXB);
writel(aacirun->cr, aacirun->base + AACI_TXCR);
}
{
u32 ie;
- aaci_chan_wait_ready(aacirun);
- aacirun->cr |= TXCR_TXEN;
+ aaci_chan_wait_ready(aacirun, SR_TXB);
+ aacirun->cr |= CR_EN;
ie = readl(aacirun->base + AACI_IE);
ie |= IE_URIE | IE_TXIE;
writel(aacirun->cr, aacirun->base + AACI_TXCR);
}
-static int aaci_pcm_playback_trigger(snd_pcm_substream_t *substream, int cmd)
+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);
default:
ret = -EINVAL;
}
- spin_unlock_irqrestore(&aaci->lock, flags);
+
+ spin_unlock_irqrestore(&aacirun->lock, flags);
return ret;
}
-static snd_pcm_ops_t aaci_playback_ops = {
- .open = aaci_pcm_playback_open,
+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,
.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_runtime *aacirun = substream->runtime->private_data;
+ int ret;
+
+ ret = aaci_pcm_hw_params(substream, aacirun, params);
+ if (ret >= 0)
+ /* Line in record: slot 3 and 4 */
+ aacirun->cr |= CR_SL3 | CR_SL4;
+
+ return ret;
+}
+
+static void aaci_pcm_capture_stop(struct aaci_runtime *aacirun)
+{
+ u32 ie;
+
+ aaci_chan_wait_ready(aacirun, SR_RXB);
+
+ ie = readl(aacirun->base + AACI_IE);
+ ie &= ~(IE_ORIE | IE_RXIE);
+ writel(ie, aacirun->base+AACI_IE);
+
+ aacirun->cr &= ~CR_EN;
+
+ writel(aacirun->cr, aacirun->base + AACI_RXCR);
+}
+
+static void aaci_pcm_capture_start(struct aaci_runtime *aacirun)
+{
+ u32 ie;
+
+ aaci_chan_wait_ready(aacirun, SR_RXB);
+
+#ifdef DEBUG
+ /* RX Timeout value: bits 28:17 in RXCR */
+ aacirun->cr |= 0xf << 17;
+#endif
+
+ aacirun->cr |= CR_EN;
+ writel(aacirun->cr, aacirun->base + AACI_RXCR);
+
+ ie = readl(aacirun->base + AACI_IE);
+ ie |= IE_ORIE |IE_RXIE; // overrun and rx interrupt -- half full
+ writel(ie, aacirun->base + AACI_IE);
+}
+
+static int aaci_pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct aaci_runtime *aacirun = substream->runtime->private_data;
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&aacirun->lock, flags);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ aaci_pcm_capture_start(aacirun);
+ break;
+
+ case SNDRV_PCM_TRIGGER_RESUME:
+ aaci_pcm_capture_start(aacirun);
+ break;
+
+ case SNDRV_PCM_TRIGGER_STOP:
+ aaci_pcm_capture_stop(aacirun);
+ break;
+
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ aaci_pcm_capture_stop(aacirun);
+ break;
+
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ break;
+
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ break;
+
+ default:
+ ret = -EINVAL;
+ }
+
+ spin_unlock_irqrestore(&aacirun->lock, flags);
+
+ return ret;
+}
+
+static int aaci_pcm_capture_prepare(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct aaci *aaci = substream->private_data;
+
+ aaci_pcm_prepare(substream);
+
+ /* allow changing of sample rate */
+ aaci_ac97_write(aaci->ac97, AC97_EXTENDED_STATUS, 0x0001); /* VRA */
+ aaci_ac97_write(aaci->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
+ aaci_ac97_write(aaci->ac97, AC97_PCM_MIC_ADC_RATE, runtime->rate);
+
+ /* Record select: Mic: 0, Aux: 3, Line: 4 */
+ aaci_ac97_write(aaci->ac97, AC97_REC_SEL, 0x0404);
+
+ return 0;
+}
+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_free = aaci_pcm_hw_free,
+ .prepare = aaci_pcm_capture_prepare,
+ .trigger = aaci_pcm_capture_trigger,
+ .pointer = aaci_pcm_pointer,
+};
/*
* Power Management.
*/
#ifdef CONFIG_PM
-static int aaci_do_suspend(snd_card_t *card, unsigned int state)
+static int aaci_do_suspend(struct snd_card *card, unsigned int state)
{
struct aaci *aaci = card->private_data;
- if (aaci->card->power_state != SNDRV_CTL_POWER_D3cold) {
- snd_pcm_suspend_all(aaci->pcm);
- snd_power_change_state(aaci->card, SNDRV_CTL_POWER_D3cold);
- }
+ snd_power_change_state(card, SNDRV_CTL_POWER_D3cold);
+ snd_pcm_suspend_all(aaci->pcm);
return 0;
}
-static int aaci_do_resume(snd_card_t *card, unsigned int state)
+static int aaci_do_resume(struct snd_card *card, unsigned int state)
{
- struct aaci *aaci = card->private_data;
- if (aaci->card->power_state != SNDRV_CTL_POWER_D0) {
- snd_power_change_state(aaci->card, SNDRV_CTL_POWER_D0);
- }
+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
static int aaci_suspend(struct amba_device *dev, pm_message_t state)
{
- snd_card_t *card = amba_get_drvdata(dev);
+ struct snd_card *card = amba_get_drvdata(dev);
return card ? aaci_do_suspend(card) : 0;
}
static int aaci_resume(struct amba_device *dev)
{
- snd_card_t *card = amba_get_drvdata(dev);
+ struct snd_card *card = amba_get_drvdata(dev);
return card ? aaci_do_resume(card) : 0;
}
#else
static struct ac97_pcm ac97_defs[] __devinitdata = {
- [0] = { /* Front PCM */
+ [0] = { /* Front PCM */
.exclusive = 1,
.r = {
[0] = {
(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 */
}
};
-static ac97_bus_ops_t aaci_bus_ops = {
+static struct snd_ac97_bus_ops aaci_bus_ops = {
.write = aaci_ac97_write,
.read = aaci_ac97_read,
};
static int __devinit aaci_probe_ac97(struct aaci *aaci)
{
- ac97_template_t ac97_template;
- ac97_bus_t *ac97_bus;
- ac97_t *ac97;
+ struct snd_ac97_template ac97_template;
+ struct snd_ac97_bus *ac97_bus;
+ struct snd_ac97 *ac97;
int ret;
/*
ac97_bus->clock = 48000;
aaci->ac97_bus = ac97_bus;
- memset(&ac97_template, 0, sizeof(ac97_template_t));
+ memset(&ac97_template, 0, sizeof(struct snd_ac97_template));
ac97_template.private_data = aaci;
ac97_template.num = 0;
ac97_template.scaps = AC97_SCAP_SKIP_MODEM;
ret = snd_ac97_mixer(ac97_bus, &ac97_template, &ac97);
if (ret)
goto out;
+ aaci->ac97 = ac97;
/*
* Disable AC97 PC Beep input on audio codecs.
goto out;
aaci->playback.pcm = &ac97_bus->pcms[0];
+ aaci->capture.pcm = &ac97_bus->pcms[1];
out:
return ret;
}
-static void aaci_free_card(snd_card_t *card)
+static void aaci_free_card(struct snd_card *card)
{
struct aaci *aaci = card->private_data;
if (aaci->base)
static struct aaci * __devinit aaci_init_card(struct amba_device *dev)
{
struct aaci *aaci;
- snd_card_t *card;
+ struct snd_card *card;
+ int err;
- card = snd_card_new(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
- THIS_MODULE, sizeof(struct aaci));
- if (card == NULL)
- return ERR_PTR(-ENOMEM);
+ err = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
+ THIS_MODULE, sizeof(struct aaci), &card);
+ if (err < 0)
+ return NULL;
card->private_free = aaci_free_card;
- snd_card_set_pm_callback(card, aaci_do_suspend, aaci_do_resume, NULL);
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%08lx, irq %d",
- card->shortname, dev->res.start, dev->irq[0]);
+ "%s at 0x%016llx, irq %d",
+ card->shortname, (unsigned long long)dev->res.start,
+ dev->irq[0]);
aaci = card->private_data;
- init_MUTEX(&aaci->ac97_sem);
- spin_lock_init(&aaci->lock);
+ mutex_init(&aaci->ac97_sem);
aaci->card = card;
aaci->dev = dev;
static int __devinit aaci_init_pcm(struct aaci *aaci)
{
- snd_pcm_t *pcm;
+ struct snd_pcm *pcm;
int ret;
- ret = snd_pcm_new(aaci->card, "AACI AC'97", 0, 1, 0, &pcm);
+ ret = snd_pcm_new(aaci->card, "AACI AC'97", 0, 1, 1, &pcm);
if (ret == 0) {
aaci->pcm = pcm;
pcm->private_data = aaci;
strlcpy(pcm->name, DRIVER_NAME, sizeof(pcm->name));
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)
{
- void __iomem *base = aaci->base + AACI_CSCH1;
+ struct aaci_runtime *aacirun = &aaci->playback;
int i;
- writel(TXCR_FEN | TXCR_TSZ16 | TXCR_TXEN, base + AACI_TXCR);
+ writel(CR_FEN | CR_SZ16 | CR_EN, aacirun->base + AACI_TXCR);
- for (i = 0; !(readl(base + AACI_SR) & SR_TXFF) && i < 4096; i++)
- writel(0, aaci->base + AACI_DR1);
+ for (i = 0; !(readl(aacirun->base + AACI_SR) & SR_TXFF) && i < 4096; i++)
+ writel(0, aacirun->fifo);
- writel(0, base + AACI_TXCR);
+ writel(0, aacirun->base + AACI_TXCR);
/*
* Re-initialise the AACI after the FIFO depth test, to
return i;
}
-static int __devinit aaci_probe(struct amba_device *dev, void *id)
+static int __devinit aaci_probe(struct amba_device *dev, struct amba_id *id)
{
struct aaci *aaci;
int ret, i;
return ret;
aaci = aaci_init_card(dev);
- if (IS_ERR(aaci)) {
- ret = PTR_ERR(aaci);
+ if (!aaci) {
+ ret = -ENOMEM;
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;
/*
* 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;
+
for (i = 0; i < 4; i++) {
void __iomem *base = aaci->base + i * 0x14;
writel(0x1fff, aaci->base + AACI_INTCLR);
writel(aaci->maincr, aaci->base + AACI_MAINCR);
-
/*
- * Size the FIFOs.
+ * Fix: ac97 read back fail errors by reading
+ * from any arbitrary aaci register.
*/
- aaci->fifosize = aaci_size_fifo(aaci);
-
+ readl(aaci->base + AACI_CSCH1);
ret = aaci_probe_ac97(aaci);
if (ret)
goto out;
+ /*
+ * Size the FIFOs (must be multiple of 16).
+ */
+ aaci->fifosize = aaci_size_fifo(aaci);
+ if (aaci->fifosize & 15) {
+ printk(KERN_WARNING "AACI: fifosize = %d not supported\n",
+ aaci->fifosize);
+ ret = -ENODEV;
+ goto out;
+ }
+
ret = aaci_init_pcm(aaci);
if (ret)
goto out;
ret = snd_card_register(aaci->card);
if (ret == 0) {
dev_info(&dev->dev, "%s, fifo %d\n", aaci->card->longname,
- aaci->fifosize);
+ aaci->fifosize);
amba_set_drvdata(dev, aaci->card);
return ret;
}
static int __devexit aaci_remove(struct amba_device *dev)
{
- snd_card_t *card = amba_get_drvdata(dev);
+ struct snd_card *card = amba_get_drvdata(dev);
amba_set_drvdata(dev, NULL);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff