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Merge branch 'topic/ps3' into for-linus 

* topic/ps3:
  ALSA: sound/ps3: Correct existing and add missing annotations
  ALSA: sound/ps3: Restructure driver source
  ALSA: sound/ps3: Fix checkpatch issues
This commit is contained in:
Takashi Iwai 2009-06-12 20:03:16 +02:00
Родитель 056c1ebf11 2233123f27
Коммит e3f86d3d3c
1 изменённых файлов: 304 добавлений и 351 удалений
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655
sound/ppc/snd_ps3.c
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@ -18,80 +18,30 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/dma-mapping.h>
#include <linux/dmapool.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <sound/asound.h>
#include <sound/control.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/asound.h>
#include <sound/memalloc.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/control.h>
#include <linux/dmapool.h>
#include <linux/dma-mapping.h>
#include <asm/firmware.h>
#include <asm/dma.h>
#include <asm/firmware.h>
#include <asm/lv1call.h>
#include <asm/ps3.h>
#include <asm/ps3av.h>
#include "snd_ps3_reg.h"
#include "snd_ps3.h"
#include "snd_ps3_reg.h"
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("PS3 sound driver");
MODULE_AUTHOR("Sony Computer Entertainment Inc.");
/* module entries */
static int __init snd_ps3_init(void);
static void __exit snd_ps3_exit(void);
/* ALSA snd driver ops */
static int snd_ps3_pcm_open(struct snd_pcm_substream *substream);
static int snd_ps3_pcm_close(struct snd_pcm_substream *substream);
static int snd_ps3_pcm_prepare(struct snd_pcm_substream *substream);
static int snd_ps3_pcm_trigger(struct snd_pcm_substream *substream,
int cmd);
static snd_pcm_uframes_t snd_ps3_pcm_pointer(struct snd_pcm_substream
*substream);
static int snd_ps3_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params);
static int snd_ps3_pcm_hw_free(struct snd_pcm_substream *substream);
/* ps3_system_bus_driver entries */
static int __init snd_ps3_driver_probe(struct ps3_system_bus_device *dev);
static int snd_ps3_driver_remove(struct ps3_system_bus_device *dev);
/* address setup */
static int snd_ps3_map_mmio(void);
static void snd_ps3_unmap_mmio(void);
static int snd_ps3_allocate_irq(void);
static void snd_ps3_free_irq(void);
static void snd_ps3_audio_set_base_addr(uint64_t ioaddr_start);
/* interrupt handler */
static irqreturn_t snd_ps3_interrupt(int irq, void *dev_id);
/* set sampling rate/format */
static int snd_ps3_set_avsetting(struct snd_pcm_substream *substream);
/* take effect parameter change */
static int snd_ps3_change_avsetting(struct snd_ps3_card_info *card);
/* initialize avsetting and take it effect */
static int snd_ps3_init_avsetting(struct snd_ps3_card_info *card);
/* setup dma */
static int snd_ps3_program_dma(struct snd_ps3_card_info *card,
enum snd_ps3_dma_filltype filltype);
static void snd_ps3_wait_for_dma_stop(struct snd_ps3_card_info *card);
static dma_addr_t v_to_bus(struct snd_ps3_card_info *, void *vaddr, int ch);
module_init(snd_ps3_init);
module_exit(snd_ps3_exit);
/*
* global
@ -165,25 +115,13 @@ static const struct snd_pcm_hardware snd_ps3_pcm_hw = {
.fifo_size = PS3_AUDIO_FIFO_SIZE
};
static struct snd_pcm_ops snd_ps3_pcm_spdif_ops =
{
.open = snd_ps3_pcm_open,
.close = snd_ps3_pcm_close,
.prepare = snd_ps3_pcm_prepare,
.ioctl = snd_pcm_lib_ioctl,
.trigger = snd_ps3_pcm_trigger,
.pointer = snd_ps3_pcm_pointer,
.hw_params = snd_ps3_pcm_hw_params,
.hw_free = snd_ps3_pcm_hw_free
};
static int snd_ps3_verify_dma_stop(struct snd_ps3_card_info *card,
int count, int force_stop)
{
int dma_ch, done, retries, stop_forced = 0;
uint32_t status;
for (dma_ch = 0; dma_ch < 8; dma_ch ++) {
for (dma_ch = 0; dma_ch < 8; dma_ch++) {
retries = count;
do {
status = read_reg(PS3_AUDIO_KICK(dma_ch)) &
@ -259,9 +197,7 @@ static void snd_ps3_kick_dma(struct snd_ps3_card_info *card)
/*
* convert virtual addr to ioif bus addr.
*/
static dma_addr_t v_to_bus(struct snd_ps3_card_info *card,
void * paddr,
int ch)
static dma_addr_t v_to_bus(struct snd_ps3_card_info *card, void *paddr, int ch)
{
return card->dma_start_bus_addr[ch] +
(paddr - card->dma_start_vaddr[ch]);
@ -321,7 +257,7 @@ static int snd_ps3_program_dma(struct snd_ps3_card_info *card,
spin_lock_irqsave(&card->dma_lock, irqsave);
for (ch = 0; ch < 2; ch++) {
start_vaddr = card->dma_next_transfer_vaddr[0];
for (stage = 0; stage < fill_stages; stage ++) {
for (stage = 0; stage < fill_stages; stage++) {
dma_ch = stage * 2 + ch;
if (silent)
dma_addr = card->null_buffer_start_dma_addr;
@ -371,6 +307,71 @@ static int snd_ps3_program_dma(struct snd_ps3_card_info *card,
return 0;
}
/*
* Interrupt handler
*/
static irqreturn_t snd_ps3_interrupt(int irq, void *dev_id)
{
uint32_t port_intr;
int underflow_occured = 0;
struct snd_ps3_card_info *card = dev_id;
if (!card->running) {
update_reg(PS3_AUDIO_AX_IS, 0);
update_reg(PS3_AUDIO_INTR_0, 0);
return IRQ_HANDLED;
}
port_intr = read_reg(PS3_AUDIO_AX_IS);
/*
*serial buffer empty detected (every 4 times),
*program next dma and kick it
*/
if (port_intr & PS3_AUDIO_AX_IE_ASOBEIE(0)) {
write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBEIE(0));
if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
write_reg(PS3_AUDIO_AX_IS, port_intr);
underflow_occured = 1;
}
if (card->silent) {
/* we are still in silent time */
snd_ps3_program_dma(card,
(underflow_occured) ?
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL :
SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
snd_ps3_kick_dma(card);
card->silent--;
} else {
snd_ps3_program_dma(card,
(underflow_occured) ?
SND_PS3_DMA_FILLTYPE_FIRSTFILL :
SND_PS3_DMA_FILLTYPE_RUNNING);
snd_ps3_kick_dma(card);
snd_pcm_period_elapsed(card->substream);
}
} else if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBUIE(0));
/*
* serial out underflow, but buffer empty not detected.
* in this case, fill fifo with 0 to recover. After
* filling dummy data, serial automatically start to
* consume them and then will generate normal buffer
* empty interrupts.
* If both buffer underflow and buffer empty are occured,
* it is better to do nomal data transfer than empty one
*/
snd_ps3_program_dma(card,
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
snd_ps3_kick_dma(card);
snd_ps3_program_dma(card,
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
snd_ps3_kick_dma(card);
}
/* clear interrupt cause */
return IRQ_HANDLED;
};
/*
* audio mute on/off
* mute_on : 0 output enabled
@ -381,6 +382,142 @@ static int snd_ps3_mute(int mute_on)
return ps3av_audio_mute(mute_on);
}
/*
* av setting
* NOTE: calling this function may generate audio interrupt.
*/
static int snd_ps3_change_avsetting(struct snd_ps3_card_info *card)
{
int ret, retries, i;
pr_debug("%s: start\n", __func__);
ret = ps3av_set_audio_mode(card->avs.avs_audio_ch,
card->avs.avs_audio_rate,
card->avs.avs_audio_width,
card->avs.avs_audio_format,
card->avs.avs_audio_source);
/*
* Reset the following unwanted settings:
*/
/* disable all 3wire buffers */
update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
~(PS3_AUDIO_AO_3WMCTRL_ASOEN(0) |
PS3_AUDIO_AO_3WMCTRL_ASOEN(1) |
PS3_AUDIO_AO_3WMCTRL_ASOEN(2) |
PS3_AUDIO_AO_3WMCTRL_ASOEN(3)),
0);
wmb(); /* ensure the hardware sees the change */
/* wait for actually stopped */
retries = 1000;
while ((read_reg(PS3_AUDIO_AO_3WMCTRL) &
(PS3_AUDIO_AO_3WMCTRL_ASORUN(0) |
PS3_AUDIO_AO_3WMCTRL_ASORUN(1) |
PS3_AUDIO_AO_3WMCTRL_ASORUN(2) |
PS3_AUDIO_AO_3WMCTRL_ASORUN(3))) &&
--retries) {
udelay(1);
}
/* reset buffer pointer */
for (i = 0; i < 4; i++) {
update_reg(PS3_AUDIO_AO_3WCTRL(i),
PS3_AUDIO_AO_3WCTRL_ASOBRST_RESET);
udelay(10);
}
wmb(); /* ensure the hardware actually start resetting */
/* enable 3wire#0 buffer */
update_reg(PS3_AUDIO_AO_3WMCTRL, PS3_AUDIO_AO_3WMCTRL_ASOEN(0));
/* In 24bit mode,ALSA inserts a zero byte at first byte of per sample */
update_mask_reg(PS3_AUDIO_AO_3WCTRL(0),
~PS3_AUDIO_AO_3WCTRL_ASODF,
PS3_AUDIO_AO_3WCTRL_ASODF_LSB);
update_mask_reg(PS3_AUDIO_AO_SPDCTRL(0),
~PS3_AUDIO_AO_SPDCTRL_SPODF,
PS3_AUDIO_AO_SPDCTRL_SPODF_LSB);
/* ensure all the setting above is written back to register */
wmb();
/* avsetting driver altered AX_IE, caller must reset it if you want */
pr_debug("%s: end\n", __func__);
return ret;
}
/*
* set sampling rate according to the substream
*/
static int snd_ps3_set_avsetting(struct snd_pcm_substream *substream)
{
struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
struct snd_ps3_avsetting_info avs;
int ret;
avs = card->avs;
pr_debug("%s: called freq=%d width=%d\n", __func__,
substream->runtime->rate,
snd_pcm_format_width(substream->runtime->format));
pr_debug("%s: before freq=%d width=%d\n", __func__,
card->avs.avs_audio_rate, card->avs.avs_audio_width);
/* sample rate */
switch (substream->runtime->rate) {
case 44100:
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_44K;
break;
case 48000:
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
break;
case 88200:
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_88K;
break;
case 96000:
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_96K;
break;
default:
pr_info("%s: invalid rate %d\n", __func__,
substream->runtime->rate);
return 1;
}
/* width */
switch (snd_pcm_format_width(substream->runtime->format)) {
case 16:
avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
break;
case 24:
avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_24;
break;
default:
pr_info("%s: invalid width %d\n", __func__,
snd_pcm_format_width(substream->runtime->format));
return 1;
}
memcpy(avs.avs_cs_info, ps3av_mode_cs_info, 8);
if (memcmp(&card->avs, &avs, sizeof(avs))) {
pr_debug("%s: after freq=%d width=%d\n", __func__,
card->avs.avs_audio_rate, card->avs.avs_audio_width);
card->avs = avs;
snd_ps3_change_avsetting(card);
ret = 0;
} else
ret = 1;
/* check CS non-audio bit and mute accordingly */
if (avs.avs_cs_info[0] & 0x02)
ps3av_audio_mute_analog(1); /* mute if non-audio */
else
ps3av_audio_mute_analog(0);
return ret;
}
/*
* PCM operators
*/
@ -406,6 +543,13 @@ static int snd_ps3_pcm_open(struct snd_pcm_substream *substream)
return 0;
};
static int snd_ps3_pcm_close(struct snd_pcm_substream *substream)
{
/* mute on */
snd_ps3_mute(1);
return 0;
};
static int snd_ps3_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
@ -417,6 +561,13 @@ static int snd_ps3_pcm_hw_params(struct snd_pcm_substream *substream,
return 0;
};
static int snd_ps3_pcm_hw_free(struct snd_pcm_substream *substream)
{
int ret;
ret = snd_pcm_lib_free_pages(substream);
return ret;
};
static int snd_ps3_delay_to_bytes(struct snd_pcm_substream *substream,
unsigned int delay_ms)
{
@ -556,202 +707,6 @@ static snd_pcm_uframes_t snd_ps3_pcm_pointer(
return ret;
};
static int snd_ps3_pcm_hw_free(struct snd_pcm_substream *substream)
{
int ret;
ret = snd_pcm_lib_free_pages(substream);
return ret;
};
static int snd_ps3_pcm_close(struct snd_pcm_substream *substream)
{
/* mute on */
snd_ps3_mute(1);
return 0;
};
static void snd_ps3_audio_fixup(struct snd_ps3_card_info *card)
{
/*
* avsetting driver seems to never change the followings
* so, init them here once
*/
/* no dma interrupt needed */
write_reg(PS3_AUDIO_INTR_EN_0, 0);
/* use every 4 buffer empty interrupt */
update_mask_reg(PS3_AUDIO_AX_IC,
PS3_AUDIO_AX_IC_AASOIMD_MASK,
PS3_AUDIO_AX_IC_AASOIMD_EVERY4);
/* enable 3wire clocks */
update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
~(PS3_AUDIO_AO_3WMCTRL_ASOBCLKD_DISABLED |
PS3_AUDIO_AO_3WMCTRL_ASOLRCKD_DISABLED),
0);
update_reg(PS3_AUDIO_AO_3WMCTRL,
PS3_AUDIO_AO_3WMCTRL_ASOPLRCK_DEFAULT);
}
/*
* av setting
* NOTE: calling this function may generate audio interrupt.
*/
static int snd_ps3_change_avsetting(struct snd_ps3_card_info *card)
{
int ret, retries, i;
pr_debug("%s: start\n", __func__);
ret = ps3av_set_audio_mode(card->avs.avs_audio_ch,
card->avs.avs_audio_rate,
card->avs.avs_audio_width,
card->avs.avs_audio_format,
card->avs.avs_audio_source);
/*
* Reset the following unwanted settings:
*/
/* disable all 3wire buffers */
update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
~(PS3_AUDIO_AO_3WMCTRL_ASOEN(0) |
PS3_AUDIO_AO_3WMCTRL_ASOEN(1) |
PS3_AUDIO_AO_3WMCTRL_ASOEN(2) |
PS3_AUDIO_AO_3WMCTRL_ASOEN(3)),
0);
wmb(); /* ensure the hardware sees the change */
/* wait for actually stopped */
retries = 1000;
while ((read_reg(PS3_AUDIO_AO_3WMCTRL) &
(PS3_AUDIO_AO_3WMCTRL_ASORUN(0) |
PS3_AUDIO_AO_3WMCTRL_ASORUN(1) |
PS3_AUDIO_AO_3WMCTRL_ASORUN(2) |
PS3_AUDIO_AO_3WMCTRL_ASORUN(3))) &&
--retries) {
udelay(1);
}
/* reset buffer pointer */
for (i = 0; i < 4; i++) {
update_reg(PS3_AUDIO_AO_3WCTRL(i),
PS3_AUDIO_AO_3WCTRL_ASOBRST_RESET);
udelay(10);
}
wmb(); /* ensure the hardware actually start resetting */
/* enable 3wire#0 buffer */
update_reg(PS3_AUDIO_AO_3WMCTRL, PS3_AUDIO_AO_3WMCTRL_ASOEN(0));
/* In 24bit mode,ALSA inserts a zero byte at first byte of per sample */
update_mask_reg(PS3_AUDIO_AO_3WCTRL(0),
~PS3_AUDIO_AO_3WCTRL_ASODF,
PS3_AUDIO_AO_3WCTRL_ASODF_LSB);
update_mask_reg(PS3_AUDIO_AO_SPDCTRL(0),
~PS3_AUDIO_AO_SPDCTRL_SPODF,
PS3_AUDIO_AO_SPDCTRL_SPODF_LSB);
/* ensure all the setting above is written back to register */
wmb();
/* avsetting driver altered AX_IE, caller must reset it if you want */
pr_debug("%s: end\n", __func__);
return ret;
}
static int snd_ps3_init_avsetting(struct snd_ps3_card_info *card)
{
int ret;
pr_debug("%s: start\n", __func__);
card->avs.avs_audio_ch = PS3AV_CMD_AUDIO_NUM_OF_CH_2;
card->avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
card->avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
card->avs.avs_audio_format = PS3AV_CMD_AUDIO_FORMAT_PCM;
card->avs.avs_audio_source = PS3AV_CMD_AUDIO_SOURCE_SERIAL;
memcpy(card->avs.avs_cs_info, ps3av_mode_cs_info, 8);
ret = snd_ps3_change_avsetting(card);
snd_ps3_audio_fixup(card);
/* to start to generate SPDIF signal, fill data */
snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
snd_ps3_kick_dma(card);
pr_debug("%s: end\n", __func__);
return ret;
}
/*
* set sampling rate according to the substream
*/
static int snd_ps3_set_avsetting(struct snd_pcm_substream *substream)
{
struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
struct snd_ps3_avsetting_info avs;
int ret;
avs = card->avs;
pr_debug("%s: called freq=%d width=%d\n", __func__,
substream->runtime->rate,
snd_pcm_format_width(substream->runtime->format));
pr_debug("%s: before freq=%d width=%d\n", __func__,
card->avs.avs_audio_rate, card->avs.avs_audio_width);
/* sample rate */
switch (substream->runtime->rate) {
case 44100:
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_44K;
break;
case 48000:
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
break;
case 88200:
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_88K;
break;
case 96000:
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_96K;
break;
default:
pr_info("%s: invalid rate %d\n", __func__,
substream->runtime->rate);
return 1;
}
/* width */
switch (snd_pcm_format_width(substream->runtime->format)) {
case 16:
avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
break;
case 24:
avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_24;
break;
default:
pr_info("%s: invalid width %d\n", __func__,
snd_pcm_format_width(substream->runtime->format));
return 1;
}
memcpy(avs.avs_cs_info, ps3av_mode_cs_info, 8);
if (memcmp(&card->avs, &avs, sizeof(avs))) {
pr_debug("%s: after freq=%d width=%d\n", __func__,
card->avs.avs_audio_rate, card->avs.avs_audio_width);
card->avs = avs;
snd_ps3_change_avsetting(card);
ret = 0;
} else
ret = 1;
/* check CS non-audio bit and mute accordingly */
if (avs.avs_cs_info[0] & 0x02)
ps3av_audio_mute_analog(1); /* mute if non-audio */
else
ps3av_audio_mute_analog(0);
return ret;
}
/*
* SPDIF status bits controls
*/
@ -798,28 +753,39 @@ static struct snd_kcontrol_new spdif_ctls[] = {
{
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
.info = snd_ps3_spdif_mask_info,
.get = snd_ps3_spdif_cmask_get,
},
{
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
.info = snd_ps3_spdif_mask_info,
.get = snd_ps3_spdif_pmask_get,
},
{
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
.info = snd_ps3_spdif_mask_info,
.get = snd_ps3_spdif_default_get,
.put = snd_ps3_spdif_default_put,
},
};
static struct snd_pcm_ops snd_ps3_pcm_spdif_ops = {
.open = snd_ps3_pcm_open,
.close = snd_ps3_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_ps3_pcm_hw_params,
.hw_free = snd_ps3_pcm_hw_free,
.prepare = snd_ps3_pcm_prepare,
.trigger = snd_ps3_pcm_trigger,
.pointer = snd_ps3_pcm_pointer,
};
static int snd_ps3_map_mmio(void)
static int __devinit snd_ps3_map_mmio(void)
{
the_card.mapped_mmio_vaddr =
ioremap(the_card.ps3_dev->m_region->bus_addr,
@ -841,7 +807,7 @@ static void snd_ps3_unmap_mmio(void)
the_card.mapped_mmio_vaddr = NULL;
}
static int snd_ps3_allocate_irq(void)
static int __devinit snd_ps3_allocate_irq(void)
{
int ret;
u64 lpar_addr, lpar_size;
@ -899,7 +865,7 @@ static void snd_ps3_free_irq(void)
ps3_irq_plug_destroy(the_card.irq_no);
}
static void snd_ps3_audio_set_base_addr(uint64_t ioaddr_start)
static void __devinit snd_ps3_audio_set_base_addr(uint64_t ioaddr_start)
{
uint64_t val;
int ret;
@ -915,7 +881,53 @@ static void snd_ps3_audio_set_base_addr(uint64_t ioaddr_start)
ret);
}
static int __init snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
static void __devinit snd_ps3_audio_fixup(struct snd_ps3_card_info *card)
{
/*
* avsetting driver seems to never change the followings
* so, init them here once
*/
/* no dma interrupt needed */
write_reg(PS3_AUDIO_INTR_EN_0, 0);
/* use every 4 buffer empty interrupt */
update_mask_reg(PS3_AUDIO_AX_IC,
PS3_AUDIO_AX_IC_AASOIMD_MASK,
PS3_AUDIO_AX_IC_AASOIMD_EVERY4);
/* enable 3wire clocks */
update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
~(PS3_AUDIO_AO_3WMCTRL_ASOBCLKD_DISABLED |
PS3_AUDIO_AO_3WMCTRL_ASOLRCKD_DISABLED),
0);
update_reg(PS3_AUDIO_AO_3WMCTRL,
PS3_AUDIO_AO_3WMCTRL_ASOPLRCK_DEFAULT);
}
static int __devinit snd_ps3_init_avsetting(struct snd_ps3_card_info *card)
{
int ret;
pr_debug("%s: start\n", __func__);
card->avs.avs_audio_ch = PS3AV_CMD_AUDIO_NUM_OF_CH_2;
card->avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
card->avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
card->avs.avs_audio_format = PS3AV_CMD_AUDIO_FORMAT_PCM;
card->avs.avs_audio_source = PS3AV_CMD_AUDIO_SOURCE_SERIAL;
memcpy(card->avs.avs_cs_info, ps3av_mode_cs_info, 8);
ret = snd_ps3_change_avsetting(card);
snd_ps3_audio_fixup(card);
/* to start to generate SPDIF signal, fill data */
snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
snd_ps3_kick_dma(card);
pr_debug("%s: end\n", __func__);
return ret;
}
static int __devinit snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
{
int i, ret;
u64 lpar_addr, lpar_size;
@ -1020,11 +1032,12 @@ static int __init snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
* its size should be lager than PS3_AUDIO_FIFO_STAGE_SIZE * 2
* PAGE_SIZE is enogh
*/
if (!(the_card.null_buffer_start_vaddr =
dma_alloc_coherent(&the_card.ps3_dev->core,
PAGE_SIZE,
&the_card.null_buffer_start_dma_addr,
GFP_KERNEL))) {
the_card.null_buffer_start_vaddr =
dma_alloc_coherent(&the_card.ps3_dev->core,
PAGE_SIZE,
&the_card.null_buffer_start_dma_addr,
GFP_KERNEL);
if (!the_card.null_buffer_start_vaddr) {
pr_info("%s: nullbuffer alloc failed\n", __func__);
goto clean_preallocate;
}
@ -1114,71 +1127,6 @@ static struct ps3_system_bus_driver snd_ps3_bus_driver_info = {
};
/*
* Interrupt handler
*/
static irqreturn_t snd_ps3_interrupt(int irq, void *dev_id)
{
uint32_t port_intr;
int underflow_occured = 0;
struct snd_ps3_card_info *card = dev_id;
if (!card->running) {
update_reg(PS3_AUDIO_AX_IS, 0);
update_reg(PS3_AUDIO_INTR_0, 0);
return IRQ_HANDLED;
}
port_intr = read_reg(PS3_AUDIO_AX_IS);
/*
*serial buffer empty detected (every 4 times),
*program next dma and kick it
*/
if (port_intr & PS3_AUDIO_AX_IE_ASOBEIE(0)) {
write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBEIE(0));
if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
write_reg(PS3_AUDIO_AX_IS, port_intr);
underflow_occured = 1;
}
if (card->silent) {
/* we are still in silent time */
snd_ps3_program_dma(card,
(underflow_occured) ?
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL :
SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
snd_ps3_kick_dma(card);
card->silent --;
} else {
snd_ps3_program_dma(card,
(underflow_occured) ?
SND_PS3_DMA_FILLTYPE_FIRSTFILL :
SND_PS3_DMA_FILLTYPE_RUNNING);
snd_ps3_kick_dma(card);
snd_pcm_period_elapsed(card->substream);
}
} else if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBUIE(0));
/*
* serial out underflow, but buffer empty not detected.
* in this case, fill fifo with 0 to recover. After
* filling dummy data, serial automatically start to
* consume them and then will generate normal buffer
* empty interrupts.
* If both buffer underflow and buffer empty are occured,
* it is better to do nomal data transfer than empty one
*/
snd_ps3_program_dma(card,
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
snd_ps3_kick_dma(card);
snd_ps3_program_dma(card,
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
snd_ps3_kick_dma(card);
}
/* clear interrupt cause */
return IRQ_HANDLED;
};
/*
* module/subsystem initialize/terminate
*/
@ -1197,10 +1145,15 @@ static int __init snd_ps3_init(void)
return ret;
}
module_init(snd_ps3_init);
static void __exit snd_ps3_exit(void)
{
ps3_system_bus_driver_unregister(&snd_ps3_bus_driver_info);
}
module_exit(snd_ps3_exit);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("PS3 sound driver");
MODULE_AUTHOR("Sony Computer Entertainment Inc.");
MODULE_ALIAS(PS3_MODULE_ALIAS_SOUND);