/*
* enable DMA and irqs
*/
static int snd_atiixp_chip_start(atiixp_t *chip)
{
unsigned int reg;
/* set up spdif, enable burst mode */
reg = atiixp_read(chip, CMD);
reg |= 0x02 << ATI_REG_CMD_SPDF_THRESHOLD_SHIFT;
reg |= ATI_REG_CMD_BURST_EN;
atiixp_write(chip, CMD, reg);
reg = atiixp_read(chip, SPDF_CMD);
reg &= ~(ATI_REG_SPDF_CMD_LFSR|ATI_REG_SPDF_CMD_SINGLE_CH);
atiixp_write(chip, SPDF_CMD, reg);
/* clear all interrupt source */
atiixp_write(chip, ISR, 0xffffffff);
/* enable irqs */
atiixp_write(chip, IER,
ATI_REG_IER_IO_STATUS_EN |
ATI_REG_IER_IN_XRUN_EN |
ATI_REG_IER_OUT_XRUN_EN |
ATI_REG_IER_SPDF_XRUN_EN |
ATI_REG_IER_SPDF_STATUS_EN);
return 0;
}
static int snd_atiixp_codec_detect(struct atiixp *chip)
{
int timeout;
chip->codec_not_ready_bits = 0;
if (ac97_codec == -1)
ac97_codec = ac97_probing_bugs(chip->pci);
if (ac97_codec >= 0) {
chip->codec_not_ready_bits |=
CODEC_CHECK_BITS ^ (1 << (ac97_codec + 10));
return 0;
}
atiixp_write(chip, IER, CODEC_CHECK_BITS);
/* wait for the interrupts */
timeout = 50;
while (timeout-- > 0) {
mdelay(1);
if (chip->codec_not_ready_bits)
break;
}
atiixp_write(chip, IER, 0); /* disable irqs */
if ((chip->codec_not_ready_bits & ALL_CODEC_NOT_READY) == ALL_CODEC_NOT_READY) {
dev_err(chip->card->dev, "no codec detected!\n");
return -ENXIO;
}
return 0;
}
static int snd_atiixp_chip_stop(struct atiixp_modem *chip)
{
/* */
atiixp_write(chip, ISR, atiixp_read(chip, ISR));
/* */
atiixp_write(chip, IER, 0);
return 0;
}
/*
* disable DMA and IRQs
*/
static int snd_atiixp_chip_stop(atiixp_t *chip)
{
/* clear interrupt source */
atiixp_write(chip, ISR, atiixp_read(chip, ISR));
/* disable irqs */
atiixp_write(chip, IER, 0);
return 0;
}
/* set up slots and formats for SPDIF OUT */
static int snd_atiixp_spdif_prepare(snd_pcm_substream_t *substream)
{
atiixp_t *chip = snd_pcm_substream_chip(substream);
spin_lock_irq(&chip->reg_lock);
if (chip->spdif_over_aclink) {
unsigned int data;
/* enable slots 10/11 */
atiixp_update(chip, CMD, ATI_REG_CMD_SPDF_CONFIG_MASK,
ATI_REG_CMD_SPDF_CONFIG_01);
data = atiixp_read(chip, OUT_DMA_SLOT) & ~ATI_REG_OUT_DMA_SLOT_MASK;
data |= ATI_REG_OUT_DMA_SLOT_BIT(10) |
ATI_REG_OUT_DMA_SLOT_BIT(11);
data |= 0x04 << ATI_REG_OUT_DMA_THRESHOLD_SHIFT;
atiixp_write(chip, OUT_DMA_SLOT, data);
atiixp_update(chip, CMD, ATI_REG_CMD_INTERLEAVE_OUT,
substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE ?
ATI_REG_CMD_INTERLEAVE_OUT : 0);
} else {
atiixp_update(chip, CMD, ATI_REG_CMD_SPDF_CONFIG_MASK, 0);
atiixp_update(chip, CMD, ATI_REG_CMD_INTERLEAVE_SPDF, 0);
}
spin_unlock_irq(&chip->reg_lock);
return 0;
}
static unsigned short snd_atiixp_codec_read(atiixp_t *chip, unsigned short codec, unsigned short reg)
{
unsigned int data;
int timeout;
if (snd_atiixp_acquire_codec(chip) < 0)
return 0xffff;
data = (reg << ATI_REG_PHYS_OUT_ADDR_SHIFT) |
ATI_REG_PHYS_OUT_ADDR_EN |
ATI_REG_PHYS_OUT_RW |
codec;
atiixp_write(chip, PHYS_OUT_ADDR, data);
if (snd_atiixp_acquire_codec(chip) < 0)
return 0xffff;
timeout = 1000;
do {
data = atiixp_read(chip, PHYS_IN_ADDR);
if (data & ATI_REG_PHYS_IN_READ_FLAG)
return data >> ATI_REG_PHYS_IN_DATA_SHIFT;
udelay(1);
} while (--timeout);
/* time out may happen during reset */
if (reg < 0x7c)
snd_printk(KERN_WARNING "atiixp: codec read timeout (reg %x)\n", reg);
return 0xffff;
}
/* start/stop SPDIF OUT DMA */
static void atiixp_spdif_enable_transfer(atiixp_t *chip, int on)
{
unsigned int data;
data = atiixp_read(chip, CMD);
if (on)
data |= ATI_REG_CMD_SPDF_OUT_EN;
else
data &= ~ATI_REG_CMD_SPDF_OUT_EN;
atiixp_write(chip, CMD, data);
}
static void snd_atiixp_codec_write(atiixp_t *chip, unsigned short codec, unsigned short reg, unsigned short val)
{
unsigned int data;
if (snd_atiixp_acquire_codec(chip) < 0)
return;
data = ((unsigned int)val << ATI_REG_PHYS_OUT_DATA_SHIFT) |
((unsigned int)reg << ATI_REG_PHYS_OUT_ADDR_SHIFT) |
ATI_REG_PHYS_OUT_ADDR_EN | codec;
atiixp_write(chip, PHYS_OUT_ADDR, data);
}
static void atiixp_in_enable_transfer(struct atiixp_modem *chip, int on)
{
if (on) {
unsigned int data = atiixp_read(chip, CMD);
if (! (data & ATI_REG_CMD_MODEM_RECEIVE_EN)) {
data |= ATI_REG_CMD_MODEM_RECEIVE_EN;
atiixp_write(chip, CMD, data);
}
} else
atiixp_update(chip, CMD, ATI_REG_CMD_MODEM_RECEIVE_EN, 0);
}
static int snd_atiixp_chip_start(struct atiixp_modem *chip)
{
unsigned int reg;
/* */
reg = atiixp_read(chip, CMD);
reg |= ATI_REG_CMD_BURST_EN;
if(!(reg & ATI_REG_CMD_MODEM_PRESENT))
reg |= ATI_REG_CMD_MODEM_PRESENT;
atiixp_write(chip, CMD, reg);
/* */
atiixp_write(chip, ISR, 0xffffffff);
/* */
atiixp_write(chip, IER,
ATI_REG_IER_MODEM_STATUS_EN |
ATI_REG_IER_MODEM_IN_XRUN_EN |
ATI_REG_IER_MODEM_OUT1_XRUN_EN);
return 0;
}
static void snd_atiixp_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
unsigned short val)
{
struct atiixp_modem *chip = ac97->private_data;
if (reg == AC97_GPIO_STATUS) {
atiixp_write(chip, MODEM_OUT_GPIO,
(val << ATI_REG_MODEM_OUT_GPIO_DATA_SHIFT) | ATI_REG_MODEM_OUT_GPIO_EN);
return;
}
snd_atiixp_codec_write(chip, ac97->num, reg, val);
}
/*
* enable DMA and irqs
*/
static int snd_atiixp_chip_start(struct atiixp_modem *chip)
{
unsigned int reg;
/* set up spdif, enable burst mode */
reg = atiixp_read(chip, CMD);
reg |= ATI_REG_CMD_BURST_EN;
if(!(reg & ATI_REG_CMD_MODEM_PRESENT))
reg |= ATI_REG_CMD_MODEM_PRESENT;
atiixp_write(chip, CMD, reg);
/* clear all interrupt source */
atiixp_write(chip, ISR, 0xffffffff);
/* enable irqs */
atiixp_write(chip, IER,
ATI_REG_IER_MODEM_STATUS_EN |
ATI_REG_IER_MODEM_IN_XRUN_EN |
ATI_REG_IER_MODEM_OUT1_XRUN_EN);
return 0;
}
static int snd_atiixp_codec_detect(struct atiixp_modem *chip)
{
int timeout;
chip->codec_not_ready_bits = 0;
atiixp_write(chip, IER, CODEC_CHECK_BITS);
/* */
timeout = 50;
while (timeout-- > 0) {
msleep(1);
if (chip->codec_not_ready_bits)
break;
}
atiixp_write(chip, IER, 0); /* */
if ((chip->codec_not_ready_bits & ALL_CODEC_NOT_READY) == ALL_CODEC_NOT_READY) {
snd_printk(KERN_ERR "atiixp-modem: no codec detected!\n");
return -ENXIO;
}
return 0;
}
static int snd_atiixp_codec_detect(atiixp_t *chip)
{
int timeout;
chip->codec_not_ready_bits = 0;
atiixp_write(chip, IER, CODEC_CHECK_BITS);
/* wait for the interrupts */
timeout = HZ / 10;
while (timeout-- > 0) {
do_delay();
if (chip->codec_not_ready_bits)
break;
}
atiixp_write(chip, IER, 0); /* disable irqs */
if ((chip->codec_not_ready_bits & ALL_CODEC_NOT_READY) == ALL_CODEC_NOT_READY) {
snd_printk(KERN_ERR "atiixp: no codec detected!\n");
return -ENXIO;
}
return 0;
}
static int snd_atiixp_codec_detect(struct atiixp_modem *chip)
{
int timeout;
chip->codec_not_ready_bits = 0;
atiixp_write(chip, IER, CODEC_CHECK_BITS);
/* wait for the interrupts */
timeout = 50;
while (timeout-- > 0) {
msleep(1);
if (chip->codec_not_ready_bits)
break;
}
atiixp_write(chip, IER, 0); /* disable irqs */
if ((chip->codec_not_ready_bits & ALL_CODEC_NOT_READY) == ALL_CODEC_NOT_READY) {
;
return -ENXIO;
}
return 0;
}
/* enable/disable analog OUT DMA */
static void atiixp_out_enable_dma(atiixp_t *chip, int on)
{
unsigned int data;
data = atiixp_read(chip, CMD);
if (on) {
if (data & ATI_REG_CMD_OUT_DMA_EN)
return;
atiixp_out_flush_dma(chip);
data |= ATI_REG_CMD_OUT_DMA_EN;
} else
data &= ~ATI_REG_CMD_OUT_DMA_EN;
atiixp_write(chip, CMD, data);
}
static int snd_atiixp_playback_prepare(struct snd_pcm_substream *substream)
{
struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
unsigned int data;
spin_lock_irq(&chip->reg_lock);
/* */
data = atiixp_read(chip, MODEM_OUT_FIFO);
data &= ~ATI_REG_MODEM_OUT1_DMA_THRESHOLD_MASK;
data |= 0x04 << ATI_REG_MODEM_OUT1_DMA_THRESHOLD_SHIFT;
atiixp_write(chip, MODEM_OUT_FIFO, data);
spin_unlock_irq(&chip->reg_lock);
return 0;
}
/* start/stop analog IN DMA */
static void atiixp_in_enable_transfer(atiixp_t *chip, int on)
{
if (on) {
unsigned int data = atiixp_read(chip, CMD);
if (! (data & ATI_REG_CMD_RECEIVE_EN)) {
data |= ATI_REG_CMD_RECEIVE_EN;
#if 0 /* FIXME: this causes the endless loop */
/* wait until slot 3/4 are finished */
while ((atiixp_read(chip, COUNTER) &
ATI_REG_COUNTER_SLOT) != 5)
;
#endif
atiixp_write(chip, CMD, data);
}
} else
atiixp_update(chip, CMD, ATI_REG_CMD_RECEIVE_EN, 0);
}
/* set up slots and formats for analog OUT */
static int snd_atiixp_playback_prepare(snd_pcm_substream_t *substream)
{
atiixp_t *chip = snd_pcm_substream_chip(substream);
unsigned int data;
spin_lock_irq(&chip->reg_lock);
data = atiixp_read(chip, OUT_DMA_SLOT) & ~ATI_REG_OUT_DMA_SLOT_MASK;
switch (substream->runtime->channels) {
case 8:
data |= ATI_REG_OUT_DMA_SLOT_BIT(10) |
ATI_REG_OUT_DMA_SLOT_BIT(11);
/* fallthru */
case 6:
data |= ATI_REG_OUT_DMA_SLOT_BIT(7) |
ATI_REG_OUT_DMA_SLOT_BIT(8);
/* fallthru */
case 4:
data |= ATI_REG_OUT_DMA_SLOT_BIT(6) |
ATI_REG_OUT_DMA_SLOT_BIT(9);
/* fallthru */
default:
data |= ATI_REG_OUT_DMA_SLOT_BIT(3) |
ATI_REG_OUT_DMA_SLOT_BIT(4);
break;
}
/* set output threshold */
data |= 0x04 << ATI_REG_OUT_DMA_THRESHOLD_SHIFT;
atiixp_write(chip, OUT_DMA_SLOT, data);
atiixp_update(chip, CMD, ATI_REG_CMD_INTERLEAVE_OUT,
substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE ?
ATI_REG_CMD_INTERLEAVE_OUT : 0);
/*
* enable 6 channel re-ordering bit if needed
*/
atiixp_update(chip, 6CH_REORDER, ATI_REG_6CH_REORDER_EN,
substream->runtime->channels >= 6 ? ATI_REG_6CH_REORDER_EN: 0);
spin_unlock_irq(&chip->reg_lock);
return 0;
}
/*
* interrupt handler
*/
static irqreturn_t snd_atiixp_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
atiixp_t *chip = dev_id;
unsigned int status;
status = atiixp_read(chip, ISR);
if (! status)
return IRQ_NONE;
/* process audio DMA */
if (status & ATI_REG_ISR_OUT_XRUN)
snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]);
else if (status & ATI_REG_ISR_OUT_STATUS)
snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]);
if (status & ATI_REG_ISR_IN_XRUN)
snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]);
else if (status & ATI_REG_ISR_IN_STATUS)
snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]);
if (! chip->spdif_over_aclink) {
if (status & ATI_REG_ISR_SPDF_XRUN)
snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_SPDIF]);
else if (status & ATI_REG_ISR_SPDF_STATUS)
snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_SPDIF]);
}
/* for codec detection */
if (status & CODEC_CHECK_BITS) {
unsigned int detected;
detected = status & CODEC_CHECK_BITS;
spin_lock(&chip->reg_lock);
chip->codec_not_ready_bits |= detected;
atiixp_update(chip, IER, detected, 0); /* disable the detected irqs */
spin_unlock(&chip->reg_lock);
}
/* ack */
atiixp_write(chip, ISR, status);
return IRQ_HANDLED;
}
static void atiixp_in_flush_dma(struct atiixp_modem *chip)
{
atiixp_write(chip, MODEM_FIFO_FLUSH, ATI_REG_MODEM_FIFO_IN_FLUSH);
}
/* flush FIFO of analog IN DMA */
static void atiixp_in_flush_dma(atiixp_t *chip)
{
atiixp_write(chip, FIFO_FLUSH, ATI_REG_FIFO_IN_FLUSH);
}
/* flush FIFO of analog OUT DMA */
static void atiixp_out_flush_dma(atiixp_t *chip)
{
atiixp_write(chip, FIFO_FLUSH, ATI_REG_FIFO_OUT_FLUSH);
}
static int snd_atiixp_pcm_open(struct snd_pcm_substream *substream,
struct atiixp_dma *dma, int pcm_type)
{
struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
int err;
static unsigned int rates[] = { 8000, 9600, 12000, 16000 };
static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
.count = ARRAY_SIZE(rates),
.list = rates,
.mask = 0,
};
if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
return -EINVAL;
if (dma->opened)
return -EBUSY;
dma->substream = substream;
runtime->hw = snd_atiixp_pcm_hw;
dma->ac97_pcm_type = pcm_type;
if ((err = snd_pcm_hw_constraint_list(runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
&hw_constraints_rates)) < 0)
return err;
if ((err = snd_pcm_hw_constraint_integer(runtime,
SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
return err;
runtime->private_data = dma;
/* */
spin_lock_irq(&chip->reg_lock);
dma->ops->enable_dma(chip, 1);
spin_unlock_irq(&chip->reg_lock);
dma->opened = 1;
return 0;
}
static int snd_atiixp_pcm_close(struct snd_pcm_substream *substream,
struct atiixp_dma *dma)
{
struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
/* */
if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
return -EINVAL;
spin_lock_irq(&chip->reg_lock);
dma->ops->enable_dma(chip, 0);
spin_unlock_irq(&chip->reg_lock);
dma->substream = NULL;
dma->opened = 0;
return 0;
}
/*
*/
static int snd_atiixp_playback_open(struct snd_pcm_substream *substream)
{
struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
int err;
mutex_lock(&chip->open_mutex);
err = snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_PLAYBACK], 0);
mutex_unlock(&chip->open_mutex);
if (err < 0)
return err;
return 0;
}
static int snd_atiixp_playback_close(struct snd_pcm_substream *substream)
{
struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
int err;
mutex_lock(&chip->open_mutex);
err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_PLAYBACK]);
mutex_unlock(&chip->open_mutex);
return err;
}
static int snd_atiixp_capture_open(struct snd_pcm_substream *substream)
{
struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
return snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_CAPTURE], 1);
}
static int snd_atiixp_capture_close(struct snd_pcm_substream *substream)
{
struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
return snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_CAPTURE]);
}
/* */
static struct snd_pcm_ops snd_atiixp_playback_ops = {
.open = snd_atiixp_playback_open,
.close = snd_atiixp_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_atiixp_pcm_hw_params,
.hw_free = snd_atiixp_pcm_hw_free,
.prepare = snd_atiixp_playback_prepare,
.trigger = snd_atiixp_pcm_trigger,
.pointer = snd_atiixp_pcm_pointer,
};
/* */
static struct snd_pcm_ops snd_atiixp_capture_ops = {
.open = snd_atiixp_capture_open,
.close = snd_atiixp_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_atiixp_pcm_hw_params,
.hw_free = snd_atiixp_pcm_hw_free,
.prepare = snd_atiixp_capture_prepare,
.trigger = snd_atiixp_pcm_trigger,
.pointer = snd_atiixp_pcm_pointer,
};
static struct atiixp_dma_ops snd_atiixp_playback_dma_ops = {
.type = ATI_DMA_PLAYBACK,
.llp_offset = ATI_REG_MODEM_OUT_DMA1_LINKPTR,
.dt_cur = ATI_REG_MODEM_OUT_DMA1_DT_CUR,
.enable_dma = atiixp_out_enable_dma,
.enable_transfer = atiixp_out_enable_transfer,
.flush_dma = atiixp_out_flush_dma,
};
static struct atiixp_dma_ops snd_atiixp_capture_dma_ops = {
.type = ATI_DMA_CAPTURE,
.llp_offset = ATI_REG_MODEM_IN_DMA_LINKPTR,
.dt_cur = ATI_REG_MODEM_IN_DMA_DT_CUR,
.enable_dma = atiixp_in_enable_dma,
.enable_transfer = atiixp_in_enable_transfer,
.flush_dma = atiixp_in_flush_dma,
};
static int __devinit snd_atiixp_pcm_new(struct atiixp_modem *chip)
{
struct snd_pcm *pcm;
int err;
/* */
chip->dmas[ATI_DMA_PLAYBACK].ops = &snd_atiixp_playback_dma_ops;
chip->dmas[ATI_DMA_CAPTURE].ops = &snd_atiixp_capture_dma_ops;
/* */
err = snd_pcm_new(chip->card, "ATI IXP MC97", ATI_PCMDEV_ANALOG, 1, 1, &pcm);
if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_atiixp_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_atiixp_capture_ops);
pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
pcm->private_data = chip;
strcpy(pcm->name, "ATI IXP MC97");
chip->pcmdevs[ATI_PCMDEV_ANALOG] = pcm;
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci),
64*1024, 128*1024);
return 0;
}
/*
*/
static irqreturn_t snd_atiixp_interrupt(int irq, void *dev_id)
{
struct atiixp_modem *chip = dev_id;
unsigned int status;
status = atiixp_read(chip, ISR);
if (! status)
return IRQ_NONE;
/* */
if (status & ATI_REG_ISR_MODEM_OUT1_XRUN)
snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]);
else if (status & ATI_REG_ISR_MODEM_OUT1_STATUS)
snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]);
if (status & ATI_REG_ISR_MODEM_IN_XRUN)
snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]);
else if (status & ATI_REG_ISR_MODEM_IN_STATUS)
snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]);
/* */
if (status & CODEC_CHECK_BITS) {
unsigned int detected;
detected = status & CODEC_CHECK_BITS;
spin_lock(&chip->reg_lock);
chip->codec_not_ready_bits |= detected;
atiixp_update(chip, IER, detected, 0); /* */
spin_unlock(&chip->reg_lock);
}
/* */
atiixp_write(chip, ISR, status);
return IRQ_HANDLED;
}
/*
*/
static int __devinit snd_atiixp_mixer_new(struct atiixp_modem *chip, int clock)
{
struct snd_ac97_bus *pbus;
struct snd_ac97_template ac97;
int i, err;
int codec_count;
static struct snd_ac97_bus_ops ops = {
.write = snd_atiixp_ac97_write,
.read = snd_atiixp_ac97_read,
};
static unsigned int codec_skip[NUM_ATI_CODECS] = {
ATI_REG_ISR_CODEC0_NOT_READY,
ATI_REG_ISR_CODEC1_NOT_READY,
ATI_REG_ISR_CODEC2_NOT_READY,
};
if (snd_atiixp_codec_detect(chip) < 0)
return -ENXIO;
if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
return err;
pbus->clock = clock;
chip->ac97_bus = pbus;
codec_count = 0;
for (i = 0; i < NUM_ATI_CODECS; i++) {
if (chip->codec_not_ready_bits & codec_skip[i])
continue;
memset(&ac97, 0, sizeof(ac97));
ac97.private_data = chip;
ac97.pci = chip->pci;
ac97.num = i;
ac97.scaps = AC97_SCAP_SKIP_AUDIO | AC97_SCAP_POWER_SAVE;
if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
chip->ac97[i] = NULL; /* */
snd_printdd("atiixp-modem: codec %d not available for modem\n", i);
continue;
}
codec_count++;
}
if (! codec_count) {
snd_printk(KERN_ERR "atiixp-modem: no codec available\n");
return -ENODEV;
}
/* */
return 0;
}
#ifdef CONFIG_PM
/*
*/
static int snd_atiixp_suspend(struct pci_dev *pci, pm_message_t state)
{
struct snd_card *card = pci_get_drvdata(pci);
struct atiixp_modem *chip = card->private_data;
int i;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
for (i = 0; i < NUM_ATI_PCMDEVS; i++)
snd_pcm_suspend_all(chip->pcmdevs[i]);
for (i = 0; i < NUM_ATI_CODECS; i++)
snd_ac97_suspend(chip->ac97[i]);
snd_atiixp_aclink_down(chip);
snd_atiixp_chip_stop(chip);
pci_disable_device(pci);
pci_save_state(pci);
pci_set_power_state(pci, pci_choose_state(pci, state));
return 0;
}
static int snd_atiixp_resume(struct pci_dev *pci)
{
struct snd_card *card = pci_get_drvdata(pci);
struct atiixp_modem *chip = card->private_data;
int i;
pci_set_power_state(pci, PCI_D0);
pci_restore_state(pci);
if (pci_enable_device(pci) < 0) {
printk(KERN_ERR "atiixp-modem: pci_enable_device failed, "
"disabling device\n");
snd_card_disconnect(card);
return -EIO;
}
pci_set_master(pci);
snd_atiixp_aclink_reset(chip);
snd_atiixp_chip_start(chip);
for (i = 0; i < NUM_ATI_CODECS; i++)
snd_ac97_resume(chip->ac97[i]);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif /* */
#ifdef CONFIG_PROC_FS
/*
*/
static void snd_atiixp_proc_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct atiixp_modem *chip = entry->private_data;
int i;
for (i = 0; i < 256; i += 4)
snd_iprintf(buffer, "%02x: %08x\n", i, readl(chip->remap_addr + i));
}
static void __devinit snd_atiixp_proc_init(struct atiixp_modem *chip)
{
struct snd_info_entry *entry;
if (! snd_card_proc_new(chip->card, "atiixp-modem", &entry))
snd_info_set_text_ops(entry, chip, snd_atiixp_proc_read);
}
#else
#define snd_atiixp_proc_init(chip)
#endif
/*
*/
static int snd_atiixp_free(struct atiixp_modem *chip)
{
if (chip->irq < 0)
goto __hw_end;
snd_atiixp_chip_stop(chip);
__hw_end:
if (chip->irq >= 0)
free_irq(chip->irq, chip);
if (chip->remap_addr)
iounmap(chip->remap_addr);
pci_release_regions(chip->pci);
pci_disable_device(chip->pci);
kfree(chip);
return 0;
}
static int snd_atiixp_dev_free(struct snd_device *device)
{
struct atiixp_modem *chip = device->device_data;
return snd_atiixp_free(chip);
}
/*
*/
static int __devinit snd_atiixp_create(struct snd_card *card,
struct pci_dev *pci,
struct atiixp_modem **r_chip)
{
static struct snd_device_ops ops = {
.dev_free = snd_atiixp_dev_free,
};
struct atiixp_modem *chip;
int err;
if ((err = pci_enable_device(pci)) < 0)
return err;
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (chip == NULL) {
pci_disable_device(pci);
return -ENOMEM;
}
spin_lock_init(&chip->reg_lock);
mutex_init(&chip->open_mutex);
chip->card = card;
chip->pci = pci;
chip->irq = -1;
if ((err = pci_request_regions(pci, "ATI IXP MC97")) < 0) {
kfree(chip);
pci_disable_device(pci);
return err;
}
chip->addr = pci_resource_start(pci, 0);
chip->remap_addr = pci_ioremap_bar(pci, 0);
if (chip->remap_addr == NULL) {
snd_printk(KERN_ERR "AC'97 space ioremap problem\n");
snd_atiixp_free(chip);
return -EIO;
}
if (request_irq(pci->irq, snd_atiixp_interrupt, IRQF_SHARED,
KBUILD_MODNAME, chip)) {
snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
snd_atiixp_free(chip);
return -EBUSY;
}
chip->irq = pci->irq;
pci_set_master(pci);
synchronize_irq(chip->irq);
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
snd_atiixp_free(chip);
return err;
}
snd_card_set_dev(card, &pci->dev);
*r_chip = chip;
return 0;
}
static int __devinit snd_atiixp_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
struct snd_card *card;
struct atiixp_modem *chip;
int err;
err = snd_card_create(index, id, THIS_MODULE, 0, &card);
if (err < 0)
return err;
strcpy(card->driver, "ATIIXP-MODEM");
strcpy(card->shortname, "ATI IXP Modem");
if ((err = snd_atiixp_create(card, pci, &chip)) < 0)
goto __error;
card->private_data = chip;
if ((err = snd_atiixp_aclink_reset(chip)) < 0)
goto __error;
if ((err = snd_atiixp_mixer_new(chip, ac97_clock)) < 0)
goto __error;
if ((err = snd_atiixp_pcm_new(chip)) < 0)
goto __error;
snd_atiixp_proc_init(chip);
snd_atiixp_chip_start(chip);
sprintf(card->longname, "%s rev %x at 0x%lx, irq %i",
card->shortname, pci->revision, chip->addr, chip->irq);
if ((err = snd_card_register(card)) < 0)
goto __error;
pci_set_drvdata(pci, card);
return 0;
__error:
snd_card_free(card);
return err;
}
static void __devexit snd_atiixp_remove(struct pci_dev *pci)
{
snd_card_free(pci_get_drvdata(pci));
pci_set_drvdata(pci, NULL);
}