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ASoC: qcom: Add support for codec dma driver

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Upadate lpass cpu and platform driver to support audio over codec dma
in ADSP bypass use case.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/1645716828-15305-7-git-send-email-quic_srivasam@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Srinivasa Rao Mandadapu 2022-02-24 21:03:45 +05:30 committed by Mark Brown
parent b138706225
commit 7d7209557b
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
1 changed files with 475 additions and 17 deletions
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492
sound/soc/qcom/lpass-platform.c
View file

@ -20,6 +20,9 @@
#define LPASS_PLATFORM_BUFFER_SIZE (24 * 2 * 1024)
#define LPASS_PLATFORM_PERIODS 2
#define LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE (8 * 1024)
#define LPASS_VA_CDC_DMA_LPM_BUFF_SIZE (12 * 1024)
#define LPASS_CDC_DMA_REGISTER_FIELDS_MAX 15
static const struct snd_pcm_hardware lpass_platform_pcm_hardware = {
.info = SNDRV_PCM_INFO_MMAP |
@ -45,6 +48,99 @@ static const struct snd_pcm_hardware lpass_platform_pcm_hardware = {
.fifo_size = 0,
};
static const struct snd_pcm_hardware lpass_platform_rxtx_hardware = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_S16 |
SNDRV_PCM_FMTBIT_S24 |
SNDRV_PCM_FMTBIT_S32,
.rates = SNDRV_PCM_RATE_8000_192000,
.rate_min = 8000,
.rate_max = 192000,
.channels_min = 1,
.channels_max = 8,
.buffer_bytes_max = LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE,
.period_bytes_max = LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE /
LPASS_PLATFORM_PERIODS,
.period_bytes_min = LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE /
LPASS_PLATFORM_PERIODS,
.periods_min = LPASS_PLATFORM_PERIODS,
.periods_max = LPASS_PLATFORM_PERIODS,
.fifo_size = 0,
};
static const struct snd_pcm_hardware lpass_platform_va_hardware = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_S16 |
SNDRV_PCM_FMTBIT_S24 |
SNDRV_PCM_FMTBIT_S32,
.rates = SNDRV_PCM_RATE_8000_192000,
.rate_min = 8000,
.rate_max = 192000,
.channels_min = 1,
.channels_max = 8,
.buffer_bytes_max = LPASS_VA_CDC_DMA_LPM_BUFF_SIZE,
.period_bytes_max = LPASS_VA_CDC_DMA_LPM_BUFF_SIZE /
LPASS_PLATFORM_PERIODS,
.period_bytes_min = LPASS_VA_CDC_DMA_LPM_BUFF_SIZE /
LPASS_PLATFORM_PERIODS,
.periods_min = LPASS_PLATFORM_PERIODS,
.periods_max = LPASS_PLATFORM_PERIODS,
.fifo_size = 0,
};
static int lpass_platform_alloc_rxtx_dmactl_fields(struct device *dev,
struct regmap *map)
{
struct lpass_data *drvdata = dev_get_drvdata(dev);
struct lpass_variant *v = drvdata->variant;
struct lpaif_dmactl *rd_dmactl, *wr_dmactl;
int rval;
rd_dmactl = devm_kzalloc(dev, sizeof(*rd_dmactl), GFP_KERNEL);
if (!rd_dmactl)
return -ENOMEM;
wr_dmactl = devm_kzalloc(dev, sizeof(*wr_dmactl), GFP_KERNEL);
if (!wr_dmactl)
return -ENOMEM;
drvdata->rxtx_rd_dmactl = rd_dmactl;
drvdata->rxtx_wr_dmactl = wr_dmactl;
rval = devm_regmap_field_bulk_alloc(dev, map, &rd_dmactl->intf,
&v->rxtx_rdma_intf, LPASS_CDC_DMA_REGISTER_FIELDS_MAX);
if (rval)
return rval;
return devm_regmap_field_bulk_alloc(dev, map, &wr_dmactl->intf,
&v->rxtx_wrdma_intf, LPASS_CDC_DMA_REGISTER_FIELDS_MAX);
}
static int lpass_platform_alloc_va_dmactl_fields(struct device *dev,
struct regmap *map)
{
struct lpass_data *drvdata = dev_get_drvdata(dev);
struct lpass_variant *v = drvdata->variant;
struct lpaif_dmactl *wr_dmactl;
wr_dmactl = devm_kzalloc(dev, sizeof(*wr_dmactl), GFP_KERNEL);
if (!wr_dmactl)
return -ENOMEM;
drvdata->va_wr_dmactl = wr_dmactl;
return devm_regmap_field_bulk_alloc(dev, map, &wr_dmactl->intf,
&v->va_wrdma_intf, LPASS_CDC_DMA_REGISTER_FIELDS_MAX);
}
static int lpass_platform_alloc_dmactl_fields(struct device *dev,
struct regmap *map)
{
@ -123,25 +219,55 @@ static int lpass_platform_pcmops_open(struct snd_soc_component *component,
return dma_ch;
}
if (cpu_dai->driver->id == LPASS_DP_RX) {
map = drvdata->hdmiif_map;
drvdata->hdmi_substream[dma_ch] = substream;
} else {
switch (dai_id) {
case MI2S_PRIMARY ... MI2S_QUINARY:
map = drvdata->lpaif_map;
drvdata->substream[dma_ch] = substream;
break;
case LPASS_DP_RX:
map = drvdata->hdmiif_map;
drvdata->hdmi_substream[dma_ch] = substream;
break;
case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
map = drvdata->rxtx_lpaif_map;
drvdata->rxtx_substream[dma_ch] = substream;
break;
case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
map = drvdata->va_lpaif_map;
drvdata->va_substream[dma_ch] = substream;
break;
default:
break;
}
data->dma_ch = dma_ch;
ret = regmap_write(map,
LPAIF_DMACTL_REG(v, dma_ch, dir, data->i2s_port), 0);
if (ret) {
dev_err(soc_runtime->dev,
"error writing to rdmactl reg: %d\n", ret);
return ret;
switch (dai_id) {
case MI2S_PRIMARY ... MI2S_QUINARY:
case LPASS_DP_RX:
ret = regmap_write(map, LPAIF_DMACTL_REG(v, dma_ch, dir, data->i2s_port), 0);
if (ret) {
kfree(data);
dev_err(soc_runtime->dev, "error writing to rdmactl reg: %d\n", ret);
return ret;
}
snd_soc_set_runtime_hwparams(substream, &lpass_platform_pcm_hardware);
runtime->dma_bytes = lpass_platform_pcm_hardware.buffer_bytes_max;
break;
case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
snd_soc_set_runtime_hwparams(substream, &lpass_platform_rxtx_hardware);
runtime->dma_bytes = lpass_platform_rxtx_hardware.buffer_bytes_max;
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
break;
case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
snd_soc_set_runtime_hwparams(substream, &lpass_platform_va_hardware);
runtime->dma_bytes = lpass_platform_va_hardware.buffer_bytes_max;
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
break;
default:
break;
}
snd_soc_set_runtime_hwparams(substream, &lpass_platform_pcm_hardware);
runtime->dma_bytes = lpass_platform_pcm_hardware.buffer_bytes_max;
ret = snd_pcm_hw_constraint_integer(runtime,
SNDRV_PCM_HW_PARAM_PERIODS);
if (ret < 0) {
@ -166,10 +292,25 @@ static int lpass_platform_pcmops_close(struct snd_soc_component *component,
unsigned int dai_id = cpu_dai->driver->id;
data = runtime->private_data;
if (dai_id == LPASS_DP_RX)
drvdata->hdmi_substream[data->dma_ch] = NULL;
else
switch (dai_id) {
case MI2S_PRIMARY ... MI2S_QUINARY:
drvdata->substream[data->dma_ch] = NULL;
break;
case LPASS_DP_RX:
drvdata->hdmi_substream[data->dma_ch] = NULL;
break;
case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
drvdata->rxtx_substream[data->dma_ch] = NULL;
break;
case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
drvdata->va_substream[data->dma_ch] = NULL;
break;
default:
break;
}
if (v->free_dma_channel)
v->free_dma_channel(drvdata, data->dma_ch, dai_id);
@ -195,6 +336,15 @@ static struct lpaif_dmactl *__lpass_get_dmactl_handle(const struct snd_pcm_subst
case LPASS_DP_RX:
dmactl = drvdata->hdmi_rd_dmactl;
break;
case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
dmactl = drvdata->rxtx_rd_dmactl;
break;
case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
dmactl = drvdata->rxtx_wr_dmactl;
break;
case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
dmactl = drvdata->va_wr_dmactl;
break;
}
return dmactl;
@ -221,6 +371,15 @@ static int __lpass_get_id(const struct snd_pcm_substream *substream,
case LPASS_DP_RX:
id = pcm_data->dma_ch;
break;
case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
id = pcm_data->dma_ch;
break;
case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
id = pcm_data->dma_ch - v->rxtx_wrdma_channel_start;
break;
case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
id = pcm_data->dma_ch - v->va_wrdma_channel_start;
break;
}
return id;
@ -241,6 +400,13 @@ static struct regmap *__lpass_get_regmap_handle(const struct snd_pcm_substream *
case LPASS_DP_RX:
map = drvdata->hdmiif_map;
break;
case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
map = drvdata->rxtx_lpaif_map;
break;
case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
map = drvdata->va_lpaif_map;
break;
}
return map;
@ -321,6 +487,10 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component,
return ret;
}
break;
case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX0:
break;
default:
dev_err(soc_runtime->dev, "%s: invalid interface: %d\n", __func__, dai_id);
@ -410,6 +580,8 @@ static int lpass_platform_pcmops_hw_free(struct snd_soc_component *component,
struct regmap *map;
unsigned int dai_id = cpu_dai->driver->id;
if (is_cdc_dma_port(dai_id))
return 0;
map = __lpass_get_regmap_handle(substream, component);
reg = LPAIF_DMACTL_REG(v, pcm_data->dma_ch, substream->stream, dai_id);
@ -466,6 +638,14 @@ static int lpass_platform_pcmops_prepare(struct snd_soc_component *component,
return ret;
}
if (is_cdc_dma_port(dai_id)) {
ret = regmap_fields_write(dmactl->fifowm, id, LPAIF_DMACTL_FIFOWM_8);
if (ret) {
dev_err(soc_runtime->dev, "error writing fifowm field to dmactl reg: %d, id: %d\n",
ret, id);
return ret;
}
}
ret = regmap_fields_write(dmactl->enable, id, LPAIF_DMACTL_ENABLE_ON);
if (ret) {
dev_err(soc_runtime->dev, "error writing to rdmactl reg: %d\n",
@ -547,6 +727,35 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component,
val_mask = LPAIF_IRQ_ALL(ch);
val_irqen = LPAIF_IRQ_ALL(ch);
break;
case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
ret = regmap_fields_write(dmactl->dyncclk, id, LPAIF_DMACTL_DYNCLK_ON);
if (ret) {
dev_err(soc_runtime->dev,
"error writing to rdmactl reg field: %d\n", ret);
return ret;
}
reg_irqclr = LPAIF_RXTX_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
val_irqclr = LPAIF_IRQ_ALL(ch);
reg_irqen = LPAIF_RXTX_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST);
val_mask = LPAIF_IRQ_ALL(ch);
val_irqen = LPAIF_IRQ_ALL(ch);
break;
case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
ret = regmap_fields_write(dmactl->dyncclk, id, LPAIF_DMACTL_DYNCLK_ON);
if (ret) {
dev_err(soc_runtime->dev,
"error writing to rdmactl reg field: %d\n", ret);
return ret;
}
reg_irqclr = LPAIF_VA_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
val_irqclr = LPAIF_IRQ_ALL(ch);
reg_irqen = LPAIF_VA_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST);
val_mask = LPAIF_IRQ_ALL(ch);
val_irqen = LPAIF_IRQ_ALL(ch);
break;
default:
dev_err(soc_runtime->dev, "%s: invalid %d interface\n", __func__, dai_id);
return -EINVAL;
@ -598,6 +807,37 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component,
val_mask = LPAIF_IRQ_ALL(ch);
val_irqen = 0;
break;
case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
ret = regmap_fields_write(dmactl->dyncclk, id, LPAIF_DMACTL_DYNCLK_OFF);
if (ret) {
dev_err(soc_runtime->dev,
"error writing to rdmactl reg field: %d\n", ret);
return ret;
}
reg_irqclr = LPAIF_RXTX_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
val_irqclr = LPAIF_IRQ_ALL(ch);
reg_irqen = LPAIF_RXTX_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST);
val_mask = LPAIF_IRQ_ALL(ch);
val_irqen = LPAIF_IRQ_ALL(ch);
break;
case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
ret = regmap_fields_write(dmactl->dyncclk, id, LPAIF_DMACTL_DYNCLK_OFF);
if (ret) {
dev_err(soc_runtime->dev,
"error writing to rdmactl reg field: %d\n", ret);
return ret;
}
reg_irqclr = LPAIF_VA_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
val_irqclr = LPAIF_IRQ_ALL(ch);
reg_irqen = LPAIF_VA_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST);
val_mask = LPAIF_IRQ_ALL(ch);
val_irqen = LPAIF_IRQ_ALL(ch);
break;
default:
dev_err(soc_runtime->dev, "%s: invalid %d interface\n", __func__, dai_id);
return -EINVAL;
@ -652,6 +892,35 @@ static snd_pcm_uframes_t lpass_platform_pcmops_pointer(
return bytes_to_frames(substream->runtime, curr_addr - base_addr);
}
static int lpass_platform_cdc_dma_mmap(struct snd_pcm_substream *substream,
struct vm_area_struct *vma)
{
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned long size, offset;
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
size = vma->vm_end - vma->vm_start;
offset = vma->vm_pgoff << PAGE_SHIFT;
return io_remap_pfn_range(vma, vma->vm_start,
(runtime->dma_addr + offset) >> PAGE_SHIFT,
size, vma->vm_page_prot);
}
static int lpass_platform_pcmops_mmap(struct snd_soc_component *component,
struct snd_pcm_substream *substream,
struct vm_area_struct *vma)
{
struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
unsigned int dai_id = cpu_dai->driver->id;
if (is_cdc_dma_port(dai_id))
return lpass_platform_cdc_dma_mmap(substream, vma);
return snd_pcm_lib_default_mmap(substream, vma);
}
static irqreturn_t lpass_dma_interrupt_handler(
struct snd_pcm_substream *substream,
struct lpass_data *drvdata,
@ -684,6 +953,17 @@ static irqreturn_t lpass_dma_interrupt_handler(
reg = LPAIF_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
val = 0;
break;
case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
map = drvdata->rxtx_lpaif_map;
reg = LPAIF_RXTX_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
val = 0;
break;
case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
map = drvdata->va_lpaif_map;
reg = LPAIF_VA_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST);
val = 0;
break;
default:
dev_err(soc_runtime->dev, "%s: invalid %d interface\n", __func__, dai_id);
return -EINVAL;
@ -791,16 +1071,115 @@ static irqreturn_t lpass_platform_hdmiif_irq(int irq, void *data)
return rv;
}
}
return IRQ_HANDLED;
}
static irqreturn_t lpass_platform_rxtxif_irq(int irq, void *data)
{
struct lpass_data *drvdata = data;
struct lpass_variant *v = drvdata->variant;
unsigned int irqs;
irqreturn_t rv;
int chan;
rv = regmap_read(drvdata->rxtx_lpaif_map,
LPAIF_RXTX_IRQSTAT_REG(v, LPAIF_IRQ_PORT_HOST), &irqs);
/* Handle per channel interrupts */
for (chan = 0; chan < LPASS_MAX_CDC_DMA_CHANNELS; chan++) {
if (irqs & LPAIF_IRQ_ALL(chan) && drvdata->rxtx_substream[chan]) {
rv = lpass_dma_interrupt_handler(
drvdata->rxtx_substream[chan],
drvdata, chan, irqs);
if (rv != IRQ_HANDLED)
return rv;
}
}
return IRQ_HANDLED;
}
static irqreturn_t lpass_platform_vaif_irq(int irq, void *data)
{
struct lpass_data *drvdata = data;
struct lpass_variant *v = drvdata->variant;
unsigned int irqs;
irqreturn_t rv;
int chan;
rv = regmap_read(drvdata->va_lpaif_map,
LPAIF_VA_IRQSTAT_REG(v, LPAIF_IRQ_PORT_HOST), &irqs);
/* Handle per channel interrupts */
for (chan = 0; chan < LPASS_MAX_VA_CDC_DMA_CHANNELS; chan++) {
if (irqs & LPAIF_IRQ_ALL(chan) && drvdata->va_substream[chan]) {
rv = lpass_dma_interrupt_handler(
drvdata->va_substream[chan],
drvdata, chan, irqs);
if (rv != IRQ_HANDLED)
return rv;
}
}
return IRQ_HANDLED;
}
static int lpass_platform_prealloc_cdc_dma_buffer(struct snd_soc_component *component,
struct snd_pcm *pcm, int dai_id)
{
struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
struct snd_pcm_substream *substream;
struct snd_dma_buffer *buf;
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)
substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
else
substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
buf = &substream->dma_buffer;
buf->dev.dev = pcm->card->dev;
buf->private_data = NULL;
/* Assign Codec DMA buffer pointers */
buf->dev.type = SNDRV_DMA_TYPE_CONTINUOUS;
switch (dai_id) {
case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
buf->bytes = lpass_platform_rxtx_hardware.buffer_bytes_max;
buf->addr = drvdata->rxtx_cdc_dma_lpm_buf;
break;
case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
buf->bytes = lpass_platform_rxtx_hardware.buffer_bytes_max;
buf->addr = drvdata->rxtx_cdc_dma_lpm_buf + LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE;
break;
case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
buf->bytes = lpass_platform_va_hardware.buffer_bytes_max;
buf->addr = drvdata->va_cdc_dma_lpm_buf;
break;
default:
break;
}
buf->area = (unsigned char * __force)memremap(buf->addr, buf->bytes, MEMREMAP_WT);
return 0;
}
static int lpass_platform_pcm_new(struct snd_soc_component *component,
struct snd_soc_pcm_runtime *soc_runtime)
{
struct snd_pcm *pcm = soc_runtime->pcm;
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
unsigned int dai_id = cpu_dai->driver->id;
size_t size = lpass_platform_pcm_hardware.buffer_bytes_max;
/*
* Lpass codec dma can access only lpass lpm hardware memory.
* ioremap is for HLOS to access hardware memory.
*/
if (is_cdc_dma_port(dai_id))
return lpass_platform_prealloc_cdc_dma_buffer(component, pcm, dai_id);
return snd_pcm_set_fixed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
component->dev, size);
}
@ -837,6 +1216,31 @@ static int lpass_platform_pcmops_resume(struct snd_soc_component *component)
return regcache_sync(map);
}
static int lpass_platform_copy(struct snd_soc_component *component,
struct snd_pcm_substream *substream, int channel,
unsigned long pos, void __user *buf, unsigned long bytes)
{
struct snd_pcm_runtime *rt = substream->runtime;
unsigned int dai_id = component->id;
int ret = 0;
void __iomem *dma_buf = (void __iomem *) (rt->dma_area + pos +
channel * (rt->dma_bytes / rt->channels));
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (is_cdc_dma_port(dai_id))
ret = copy_from_user_toio(dma_buf, buf, bytes);
else
ret = copy_from_user((void __force *)dma_buf, buf, bytes);
} else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
if (is_cdc_dma_port(dai_id))
ret = copy_to_user_fromio(buf, dma_buf, bytes);
else
ret = copy_to_user(buf, (void __force *)dma_buf, bytes);
}
return ret;
}
static const struct snd_soc_component_driver lpass_component_driver = {
.name = DRV_NAME,
@ -847,9 +1251,11 @@ static const struct snd_soc_component_driver lpass_component_driver = {
.prepare = lpass_platform_pcmops_prepare,
.trigger = lpass_platform_pcmops_trigger,
.pointer = lpass_platform_pcmops_pointer,
.mmap = lpass_platform_pcmops_mmap,
.pcm_construct = lpass_platform_pcm_new,
.suspend = lpass_platform_pcmops_suspend,
.resume = lpass_platform_pcmops_resume,
.copy_user = lpass_platform_copy,
};
@ -887,6 +1293,58 @@ int asoc_qcom_lpass_platform_register(struct platform_device *pdev)
return ret;
}
if (drvdata->codec_dma_enable) {
ret = regmap_write(drvdata->rxtx_lpaif_map,
LPAIF_RXTX_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST), 0x0);
if (ret) {
dev_err(&pdev->dev, "error writing to rxtx irqen reg: %d\n", ret);
return ret;
}
ret = regmap_write(drvdata->va_lpaif_map,
LPAIF_VA_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST), 0x0);
if (ret) {
dev_err(&pdev->dev, "error writing to rxtx irqen reg: %d\n", ret);
return ret;
}
drvdata->rxtxif_irq = platform_get_irq_byname(pdev, "lpass-irq-rxtxif");
if (drvdata->rxtxif_irq < 0)
return -ENODEV;
ret = devm_request_irq(&pdev->dev, drvdata->rxtxif_irq,
lpass_platform_rxtxif_irq, 0, "lpass-irq-rxtxif", drvdata);
if (ret) {
dev_err(&pdev->dev, "rxtx irq request failed: %d\n", ret);
return ret;
}
ret = lpass_platform_alloc_rxtx_dmactl_fields(&pdev->dev,
drvdata->rxtx_lpaif_map);
if (ret) {
dev_err(&pdev->dev,
"error initializing rxtx dmactl fields: %d\n", ret);
return ret;
}
drvdata->vaif_irq = platform_get_irq_byname(pdev, "lpass-irq-vaif");
if (drvdata->vaif_irq < 0)
return -ENODEV;
ret = devm_request_irq(&pdev->dev, drvdata->vaif_irq,
lpass_platform_vaif_irq, 0, "lpass-irq-vaif", drvdata);
if (ret) {
dev_err(&pdev->dev, "va irq request failed: %d\n", ret);
return ret;
}
ret = lpass_platform_alloc_va_dmactl_fields(&pdev->dev,
drvdata->va_lpaif_map);
if (ret) {
dev_err(&pdev->dev,
"error initializing va dmactl fields: %d\n", ret);
return ret;
}
}
if (drvdata->hdmi_port_enable) {
drvdata->hdmiif_irq = platform_get_irq_byname(pdev, "lpass-irq-hdmi");
if (drvdata->hdmiif_irq < 0)