mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
694 lines
18 KiB
694 lines
18 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
|
/* |
|
* Support for Digigram Lola PCI-e boards |
|
* |
|
* Copyright (c) 2011 Takashi Iwai <[email protected]> |
|
*/ |
|
|
|
#include <linux/kernel.h> |
|
#include <linux/init.h> |
|
#include <linux/dma-mapping.h> |
|
#include <linux/pci.h> |
|
#include <linux/delay.h> |
|
#include <sound/core.h> |
|
#include <sound/pcm.h> |
|
#include "lola.h" |
|
|
|
#define LOLA_MAX_BDL_ENTRIES 8 |
|
#define LOLA_MAX_BUF_SIZE (1024*1024*1024) |
|
#define LOLA_BDL_ENTRY_SIZE (16 * 16) |
|
|
|
static struct lola_pcm *lola_get_pcm(struct snd_pcm_substream *substream) |
|
{ |
|
struct lola *chip = snd_pcm_substream_chip(substream); |
|
return &chip->pcm[substream->stream]; |
|
} |
|
|
|
static struct lola_stream *lola_get_stream(struct snd_pcm_substream *substream) |
|
{ |
|
struct lola_pcm *pcm = lola_get_pcm(substream); |
|
unsigned int idx = substream->number; |
|
return &pcm->streams[idx]; |
|
} |
|
|
|
static unsigned int lola_get_lrc(struct lola *chip) |
|
{ |
|
return lola_readl(chip, BAR1, LRC); |
|
} |
|
|
|
static unsigned int lola_get_tstamp(struct lola *chip, bool quick_no_sync) |
|
{ |
|
unsigned int tstamp = lola_get_lrc(chip) >> 8; |
|
if (chip->granularity) { |
|
unsigned int wait_banks = quick_no_sync ? 0 : 8; |
|
tstamp += (wait_banks + 1) * chip->granularity - 1; |
|
tstamp -= tstamp % chip->granularity; |
|
} |
|
return tstamp << 8; |
|
} |
|
|
|
/* clear any pending interrupt status */ |
|
static void lola_stream_clear_pending_irq(struct lola *chip, |
|
struct lola_stream *str) |
|
{ |
|
unsigned int val = lola_dsd_read(chip, str->dsd, STS); |
|
val &= LOLA_DSD_STS_DESE | LOLA_DSD_STS_BCIS; |
|
if (val) |
|
lola_dsd_write(chip, str->dsd, STS, val); |
|
} |
|
|
|
static void lola_stream_start(struct lola *chip, struct lola_stream *str, |
|
unsigned int tstamp) |
|
{ |
|
lola_stream_clear_pending_irq(chip, str); |
|
lola_dsd_write(chip, str->dsd, CTL, |
|
LOLA_DSD_CTL_SRUN | |
|
LOLA_DSD_CTL_IOCE | |
|
LOLA_DSD_CTL_DEIE | |
|
LOLA_DSD_CTL_VLRCV | |
|
tstamp); |
|
} |
|
|
|
static void lola_stream_stop(struct lola *chip, struct lola_stream *str, |
|
unsigned int tstamp) |
|
{ |
|
lola_dsd_write(chip, str->dsd, CTL, |
|
LOLA_DSD_CTL_IOCE | |
|
LOLA_DSD_CTL_DEIE | |
|
LOLA_DSD_CTL_VLRCV | |
|
tstamp); |
|
lola_stream_clear_pending_irq(chip, str); |
|
} |
|
|
|
static void wait_for_srst_clear(struct lola *chip, struct lola_stream *str) |
|
{ |
|
unsigned long end_time = jiffies + msecs_to_jiffies(200); |
|
while (time_before(jiffies, end_time)) { |
|
unsigned int val; |
|
val = lola_dsd_read(chip, str->dsd, CTL); |
|
if (!(val & LOLA_DSD_CTL_SRST)) |
|
return; |
|
msleep(1); |
|
} |
|
dev_warn(chip->card->dev, "SRST not clear (stream %d)\n", str->dsd); |
|
} |
|
|
|
static int lola_stream_wait_for_fifo(struct lola *chip, |
|
struct lola_stream *str, |
|
bool ready) |
|
{ |
|
unsigned int val = ready ? LOLA_DSD_STS_FIFORDY : 0; |
|
unsigned long end_time = jiffies + msecs_to_jiffies(200); |
|
while (time_before(jiffies, end_time)) { |
|
unsigned int reg = lola_dsd_read(chip, str->dsd, STS); |
|
if ((reg & LOLA_DSD_STS_FIFORDY) == val) |
|
return 0; |
|
msleep(1); |
|
} |
|
dev_warn(chip->card->dev, "FIFO not ready (stream %d)\n", str->dsd); |
|
return -EIO; |
|
} |
|
|
|
/* sync for FIFO ready/empty for all linked streams; |
|
* clear paused flag when FIFO gets ready again |
|
*/ |
|
static int lola_sync_wait_for_fifo(struct lola *chip, |
|
struct snd_pcm_substream *substream, |
|
bool ready) |
|
{ |
|
unsigned int val = ready ? LOLA_DSD_STS_FIFORDY : 0; |
|
unsigned long end_time = jiffies + msecs_to_jiffies(200); |
|
struct snd_pcm_substream *s; |
|
int pending = 0; |
|
|
|
while (time_before(jiffies, end_time)) { |
|
pending = 0; |
|
snd_pcm_group_for_each_entry(s, substream) { |
|
struct lola_stream *str; |
|
if (s->pcm->card != substream->pcm->card) |
|
continue; |
|
str = lola_get_stream(s); |
|
if (str->prepared && str->paused) { |
|
unsigned int reg; |
|
reg = lola_dsd_read(chip, str->dsd, STS); |
|
if ((reg & LOLA_DSD_STS_FIFORDY) != val) { |
|
pending = str->dsd + 1; |
|
break; |
|
} |
|
if (ready) |
|
str->paused = 0; |
|
} |
|
} |
|
if (!pending) |
|
return 0; |
|
msleep(1); |
|
} |
|
dev_warn(chip->card->dev, "FIFO not ready (pending %d)\n", pending - 1); |
|
return -EIO; |
|
} |
|
|
|
/* finish pause - prepare for a new resume */ |
|
static void lola_sync_pause(struct lola *chip, |
|
struct snd_pcm_substream *substream) |
|
{ |
|
struct snd_pcm_substream *s; |
|
|
|
lola_sync_wait_for_fifo(chip, substream, false); |
|
snd_pcm_group_for_each_entry(s, substream) { |
|
struct lola_stream *str; |
|
if (s->pcm->card != substream->pcm->card) |
|
continue; |
|
str = lola_get_stream(s); |
|
if (str->paused && str->prepared) |
|
lola_dsd_write(chip, str->dsd, CTL, LOLA_DSD_CTL_SRUN | |
|
LOLA_DSD_CTL_IOCE | LOLA_DSD_CTL_DEIE); |
|
} |
|
lola_sync_wait_for_fifo(chip, substream, true); |
|
} |
|
|
|
static void lola_stream_reset(struct lola *chip, struct lola_stream *str) |
|
{ |
|
if (str->prepared) { |
|
if (str->paused) |
|
lola_sync_pause(chip, str->substream); |
|
str->prepared = 0; |
|
lola_dsd_write(chip, str->dsd, CTL, |
|
LOLA_DSD_CTL_IOCE | LOLA_DSD_CTL_DEIE); |
|
lola_stream_wait_for_fifo(chip, str, false); |
|
lola_stream_clear_pending_irq(chip, str); |
|
lola_dsd_write(chip, str->dsd, CTL, LOLA_DSD_CTL_SRST); |
|
lola_dsd_write(chip, str->dsd, LVI, 0); |
|
lola_dsd_write(chip, str->dsd, BDPU, 0); |
|
lola_dsd_write(chip, str->dsd, BDPL, 0); |
|
wait_for_srst_clear(chip, str); |
|
} |
|
} |
|
|
|
static const struct snd_pcm_hardware lola_pcm_hw = { |
|
.info = (SNDRV_PCM_INFO_MMAP | |
|
SNDRV_PCM_INFO_INTERLEAVED | |
|
SNDRV_PCM_INFO_BLOCK_TRANSFER | |
|
SNDRV_PCM_INFO_MMAP_VALID | |
|
SNDRV_PCM_INFO_PAUSE), |
|
.formats = (SNDRV_PCM_FMTBIT_S16_LE | |
|
SNDRV_PCM_FMTBIT_S24_LE | |
|
SNDRV_PCM_FMTBIT_S32_LE | |
|
SNDRV_PCM_FMTBIT_FLOAT_LE), |
|
.rates = SNDRV_PCM_RATE_8000_192000, |
|
.rate_min = 8000, |
|
.rate_max = 192000, |
|
.channels_min = 1, |
|
.channels_max = 2, |
|
.buffer_bytes_max = LOLA_MAX_BUF_SIZE, |
|
.period_bytes_min = 128, |
|
.period_bytes_max = LOLA_MAX_BUF_SIZE / 2, |
|
.periods_min = 2, |
|
.periods_max = LOLA_MAX_BDL_ENTRIES, |
|
.fifo_size = 0, |
|
}; |
|
|
|
static int lola_pcm_open(struct snd_pcm_substream *substream) |
|
{ |
|
struct lola *chip = snd_pcm_substream_chip(substream); |
|
struct lola_pcm *pcm = lola_get_pcm(substream); |
|
struct lola_stream *str = lola_get_stream(substream); |
|
struct snd_pcm_runtime *runtime = substream->runtime; |
|
|
|
mutex_lock(&chip->open_mutex); |
|
if (str->opened) { |
|
mutex_unlock(&chip->open_mutex); |
|
return -EBUSY; |
|
} |
|
str->substream = substream; |
|
str->master = NULL; |
|
str->opened = 1; |
|
runtime->hw = lola_pcm_hw; |
|
runtime->hw.channels_max = pcm->num_streams - str->index; |
|
if (chip->sample_rate) { |
|
/* sample rate is locked */ |
|
runtime->hw.rate_min = chip->sample_rate; |
|
runtime->hw.rate_max = chip->sample_rate; |
|
} else { |
|
runtime->hw.rate_min = chip->sample_rate_min; |
|
runtime->hw.rate_max = chip->sample_rate_max; |
|
} |
|
chip->ref_count_rate++; |
|
snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); |
|
/* period size = multiple of chip->granularity (8, 16 or 32 frames)*/ |
|
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, |
|
chip->granularity); |
|
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, |
|
chip->granularity); |
|
mutex_unlock(&chip->open_mutex); |
|
return 0; |
|
} |
|
|
|
static void lola_cleanup_slave_streams(struct lola_pcm *pcm, |
|
struct lola_stream *str) |
|
{ |
|
int i; |
|
for (i = str->index + 1; i < pcm->num_streams; i++) { |
|
struct lola_stream *s = &pcm->streams[i]; |
|
if (s->master != str) |
|
break; |
|
s->master = NULL; |
|
s->opened = 0; |
|
} |
|
} |
|
|
|
static int lola_pcm_close(struct snd_pcm_substream *substream) |
|
{ |
|
struct lola *chip = snd_pcm_substream_chip(substream); |
|
struct lola_stream *str = lola_get_stream(substream); |
|
|
|
mutex_lock(&chip->open_mutex); |
|
if (str->substream == substream) { |
|
str->substream = NULL; |
|
str->opened = 0; |
|
} |
|
if (--chip->ref_count_rate == 0) { |
|
/* release sample rate */ |
|
chip->sample_rate = 0; |
|
} |
|
mutex_unlock(&chip->open_mutex); |
|
return 0; |
|
} |
|
|
|
static int lola_pcm_hw_params(struct snd_pcm_substream *substream, |
|
struct snd_pcm_hw_params *hw_params) |
|
{ |
|
struct lola_stream *str = lola_get_stream(substream); |
|
|
|
str->bufsize = 0; |
|
str->period_bytes = 0; |
|
str->format_verb = 0; |
|
return 0; |
|
} |
|
|
|
static int lola_pcm_hw_free(struct snd_pcm_substream *substream) |
|
{ |
|
struct lola *chip = snd_pcm_substream_chip(substream); |
|
struct lola_pcm *pcm = lola_get_pcm(substream); |
|
struct lola_stream *str = lola_get_stream(substream); |
|
|
|
mutex_lock(&chip->open_mutex); |
|
lola_stream_reset(chip, str); |
|
lola_cleanup_slave_streams(pcm, str); |
|
mutex_unlock(&chip->open_mutex); |
|
return 0; |
|
} |
|
|
|
/* |
|
* set up a BDL entry |
|
*/ |
|
static int setup_bdle(struct snd_pcm_substream *substream, |
|
struct lola_stream *str, __le32 **bdlp, |
|
int ofs, int size) |
|
{ |
|
__le32 *bdl = *bdlp; |
|
|
|
while (size > 0) { |
|
dma_addr_t addr; |
|
int chunk; |
|
|
|
if (str->frags >= LOLA_MAX_BDL_ENTRIES) |
|
return -EINVAL; |
|
|
|
addr = snd_pcm_sgbuf_get_addr(substream, ofs); |
|
/* program the address field of the BDL entry */ |
|
bdl[0] = cpu_to_le32((u32)addr); |
|
bdl[1] = cpu_to_le32(upper_32_bits(addr)); |
|
/* program the size field of the BDL entry */ |
|
chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size); |
|
bdl[2] = cpu_to_le32(chunk); |
|
/* program the IOC to enable interrupt |
|
* only when the whole fragment is processed |
|
*/ |
|
size -= chunk; |
|
bdl[3] = size ? 0 : cpu_to_le32(0x01); |
|
bdl += 4; |
|
str->frags++; |
|
ofs += chunk; |
|
} |
|
*bdlp = bdl; |
|
return ofs; |
|
} |
|
|
|
/* |
|
* set up BDL entries |
|
*/ |
|
static int lola_setup_periods(struct lola *chip, struct lola_pcm *pcm, |
|
struct snd_pcm_substream *substream, |
|
struct lola_stream *str) |
|
{ |
|
__le32 *bdl; |
|
int i, ofs, periods, period_bytes; |
|
|
|
period_bytes = str->period_bytes; |
|
periods = str->bufsize / period_bytes; |
|
|
|
/* program the initial BDL entries */ |
|
bdl = (__le32 *)(pcm->bdl.area + LOLA_BDL_ENTRY_SIZE * str->index); |
|
ofs = 0; |
|
str->frags = 0; |
|
for (i = 0; i < periods; i++) { |
|
ofs = setup_bdle(substream, str, &bdl, ofs, period_bytes); |
|
if (ofs < 0) |
|
goto error; |
|
} |
|
return 0; |
|
|
|
error: |
|
dev_err(chip->card->dev, "Too many BDL entries: buffer=%d, period=%d\n", |
|
str->bufsize, period_bytes); |
|
return -EINVAL; |
|
} |
|
|
|
static unsigned int lola_get_format_verb(struct snd_pcm_substream *substream) |
|
{ |
|
unsigned int verb; |
|
|
|
switch (substream->runtime->format) { |
|
case SNDRV_PCM_FORMAT_S16_LE: |
|
verb = 0x00000000; |
|
break; |
|
case SNDRV_PCM_FORMAT_S24_LE: |
|
verb = 0x00000200; |
|
break; |
|
case SNDRV_PCM_FORMAT_S32_LE: |
|
verb = 0x00000300; |
|
break; |
|
case SNDRV_PCM_FORMAT_FLOAT_LE: |
|
verb = 0x00001300; |
|
break; |
|
default: |
|
return 0; |
|
} |
|
verb |= substream->runtime->channels; |
|
return verb; |
|
} |
|
|
|
static int lola_set_stream_config(struct lola *chip, |
|
struct lola_stream *str, |
|
int channels) |
|
{ |
|
int i, err; |
|
unsigned int verb, val; |
|
|
|
/* set format info for all channels |
|
* (with only one command for the first channel) |
|
*/ |
|
err = lola_codec_read(chip, str->nid, LOLA_VERB_SET_STREAM_FORMAT, |
|
str->format_verb, 0, &val, NULL); |
|
if (err < 0) { |
|
dev_err(chip->card->dev, "Cannot set stream format 0x%x\n", |
|
str->format_verb); |
|
return err; |
|
} |
|
|
|
/* update stream - channel config */ |
|
for (i = 0; i < channels; i++) { |
|
verb = (str->index << 6) | i; |
|
err = lola_codec_read(chip, str[i].nid, |
|
LOLA_VERB_SET_CHANNEL_STREAMID, 0, verb, |
|
&val, NULL); |
|
if (err < 0) { |
|
dev_err(chip->card->dev, |
|
"Cannot set stream channel %d\n", i); |
|
return err; |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
/* |
|
* set up the SD for streaming |
|
*/ |
|
static int lola_setup_controller(struct lola *chip, struct lola_pcm *pcm, |
|
struct lola_stream *str) |
|
{ |
|
dma_addr_t bdl; |
|
|
|
if (str->prepared) |
|
return -EINVAL; |
|
|
|
/* set up BDL */ |
|
bdl = pcm->bdl.addr + LOLA_BDL_ENTRY_SIZE * str->index; |
|
lola_dsd_write(chip, str->dsd, BDPL, (u32)bdl); |
|
lola_dsd_write(chip, str->dsd, BDPU, upper_32_bits(bdl)); |
|
/* program the stream LVI (last valid index) of the BDL */ |
|
lola_dsd_write(chip, str->dsd, LVI, str->frags - 1); |
|
lola_stream_clear_pending_irq(chip, str); |
|
|
|
lola_dsd_write(chip, str->dsd, CTL, |
|
LOLA_DSD_CTL_IOCE | LOLA_DSD_CTL_DEIE | LOLA_DSD_CTL_SRUN); |
|
|
|
str->prepared = 1; |
|
|
|
return lola_stream_wait_for_fifo(chip, str, true); |
|
} |
|
|
|
static int lola_pcm_prepare(struct snd_pcm_substream *substream) |
|
{ |
|
struct lola *chip = snd_pcm_substream_chip(substream); |
|
struct lola_pcm *pcm = lola_get_pcm(substream); |
|
struct lola_stream *str = lola_get_stream(substream); |
|
struct snd_pcm_runtime *runtime = substream->runtime; |
|
unsigned int bufsize, period_bytes, format_verb; |
|
int i, err; |
|
|
|
mutex_lock(&chip->open_mutex); |
|
lola_stream_reset(chip, str); |
|
lola_cleanup_slave_streams(pcm, str); |
|
if (str->index + runtime->channels > pcm->num_streams) { |
|
mutex_unlock(&chip->open_mutex); |
|
return -EINVAL; |
|
} |
|
for (i = 1; i < runtime->channels; i++) { |
|
str[i].master = str; |
|
str[i].opened = 1; |
|
} |
|
mutex_unlock(&chip->open_mutex); |
|
|
|
bufsize = snd_pcm_lib_buffer_bytes(substream); |
|
period_bytes = snd_pcm_lib_period_bytes(substream); |
|
format_verb = lola_get_format_verb(substream); |
|
|
|
str->bufsize = bufsize; |
|
str->period_bytes = period_bytes; |
|
str->format_verb = format_verb; |
|
|
|
err = lola_setup_periods(chip, pcm, substream, str); |
|
if (err < 0) |
|
return err; |
|
|
|
err = lola_set_sample_rate(chip, runtime->rate); |
|
if (err < 0) |
|
return err; |
|
chip->sample_rate = runtime->rate; /* sample rate gets locked */ |
|
|
|
err = lola_set_stream_config(chip, str, runtime->channels); |
|
if (err < 0) |
|
return err; |
|
|
|
err = lola_setup_controller(chip, pcm, str); |
|
if (err < 0) { |
|
lola_stream_reset(chip, str); |
|
return err; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int lola_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
|
{ |
|
struct lola *chip = snd_pcm_substream_chip(substream); |
|
struct lola_stream *str; |
|
struct snd_pcm_substream *s; |
|
unsigned int start; |
|
unsigned int tstamp; |
|
bool sync_streams; |
|
|
|
switch (cmd) { |
|
case SNDRV_PCM_TRIGGER_START: |
|
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
|
case SNDRV_PCM_TRIGGER_RESUME: |
|
start = 1; |
|
break; |
|
case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
|
case SNDRV_PCM_TRIGGER_SUSPEND: |
|
case SNDRV_PCM_TRIGGER_STOP: |
|
start = 0; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
/* |
|
* sample correct synchronization is only needed starting several |
|
* streams. On stop or if only one stream do as quick as possible |
|
*/ |
|
sync_streams = (start && snd_pcm_stream_linked(substream)); |
|
tstamp = lola_get_tstamp(chip, !sync_streams); |
|
spin_lock(&chip->reg_lock); |
|
snd_pcm_group_for_each_entry(s, substream) { |
|
if (s->pcm->card != substream->pcm->card) |
|
continue; |
|
str = lola_get_stream(s); |
|
if (start) |
|
lola_stream_start(chip, str, tstamp); |
|
else |
|
lola_stream_stop(chip, str, tstamp); |
|
str->running = start; |
|
str->paused = !start; |
|
snd_pcm_trigger_done(s, substream); |
|
} |
|
spin_unlock(&chip->reg_lock); |
|
return 0; |
|
} |
|
|
|
static snd_pcm_uframes_t lola_pcm_pointer(struct snd_pcm_substream *substream) |
|
{ |
|
struct lola *chip = snd_pcm_substream_chip(substream); |
|
struct lola_stream *str = lola_get_stream(substream); |
|
unsigned int pos = lola_dsd_read(chip, str->dsd, LPIB); |
|
|
|
if (pos >= str->bufsize) |
|
pos = 0; |
|
return bytes_to_frames(substream->runtime, pos); |
|
} |
|
|
|
void lola_pcm_update(struct lola *chip, struct lola_pcm *pcm, unsigned int bits) |
|
{ |
|
int i; |
|
|
|
for (i = 0; bits && i < pcm->num_streams; i++) { |
|
if (bits & (1 << i)) { |
|
struct lola_stream *str = &pcm->streams[i]; |
|
if (str->substream && str->running) |
|
snd_pcm_period_elapsed(str->substream); |
|
bits &= ~(1 << i); |
|
} |
|
} |
|
} |
|
|
|
static const struct snd_pcm_ops lola_pcm_ops = { |
|
.open = lola_pcm_open, |
|
.close = lola_pcm_close, |
|
.hw_params = lola_pcm_hw_params, |
|
.hw_free = lola_pcm_hw_free, |
|
.prepare = lola_pcm_prepare, |
|
.trigger = lola_pcm_trigger, |
|
.pointer = lola_pcm_pointer, |
|
}; |
|
|
|
int lola_create_pcm(struct lola *chip) |
|
{ |
|
struct snd_pcm *pcm; |
|
int i, err; |
|
|
|
for (i = 0; i < 2; i++) { |
|
err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, |
|
&chip->pci->dev, |
|
PAGE_SIZE, &chip->pcm[i].bdl); |
|
if (err < 0) |
|
return err; |
|
} |
|
|
|
err = snd_pcm_new(chip->card, "Digigram Lola", 0, |
|
chip->pcm[SNDRV_PCM_STREAM_PLAYBACK].num_streams, |
|
chip->pcm[SNDRV_PCM_STREAM_CAPTURE].num_streams, |
|
&pcm); |
|
if (err < 0) |
|
return err; |
|
strscpy(pcm->name, "Digigram Lola", sizeof(pcm->name)); |
|
pcm->private_data = chip; |
|
for (i = 0; i < 2; i++) { |
|
if (chip->pcm[i].num_streams) |
|
snd_pcm_set_ops(pcm, i, &lola_pcm_ops); |
|
} |
|
/* buffer pre-allocation */ |
|
snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG, |
|
&chip->pci->dev, |
|
1024 * 64, 32 * 1024 * 1024); |
|
return 0; |
|
} |
|
|
|
void lola_free_pcm(struct lola *chip) |
|
{ |
|
snd_dma_free_pages(&chip->pcm[0].bdl); |
|
snd_dma_free_pages(&chip->pcm[1].bdl); |
|
} |
|
|
|
/* |
|
*/ |
|
|
|
static int lola_init_stream(struct lola *chip, struct lola_stream *str, |
|
int idx, int nid, int dir) |
|
{ |
|
unsigned int val; |
|
int err; |
|
|
|
str->nid = nid; |
|
str->index = idx; |
|
str->dsd = idx; |
|
if (dir == PLAY) |
|
str->dsd += MAX_STREAM_IN_COUNT; |
|
err = lola_read_param(chip, nid, LOLA_PAR_AUDIO_WIDGET_CAP, &val); |
|
if (err < 0) { |
|
dev_err(chip->card->dev, "Can't read wcaps for 0x%x\n", nid); |
|
return err; |
|
} |
|
if (dir == PLAY) { |
|
/* test TYPE and bits 0..11 (no test bit9 : Digital = 0/1) */ |
|
if ((val & 0x00f00dff) != 0x00000010) { |
|
dev_err(chip->card->dev, |
|
"Invalid wcaps 0x%x for 0x%x\n", |
|
val, nid); |
|
return -EINVAL; |
|
} |
|
} else { |
|
/* test TYPE and bits 0..11 (no test bit9 : Digital = 0/1) |
|
* (bug : ignore bit8: Conn list = 0/1) |
|
*/ |
|
if ((val & 0x00f00cff) != 0x00100010) { |
|
dev_err(chip->card->dev, |
|
"Invalid wcaps 0x%x for 0x%x\n", |
|
val, nid); |
|
return -EINVAL; |
|
} |
|
/* test bit9:DIGITAL and bit12:SRC_PRESENT*/ |
|
if ((val & 0x00001200) == 0x00001200) |
|
chip->input_src_caps_mask |= (1 << idx); |
|
} |
|
|
|
err = lola_read_param(chip, nid, LOLA_PAR_STREAM_FORMATS, &val); |
|
if (err < 0) { |
|
dev_err(chip->card->dev, "Can't read FORMATS 0x%x\n", nid); |
|
return err; |
|
} |
|
val &= 3; |
|
if (val == 3) |
|
str->can_float = true; |
|
if (!(val & 1)) { |
|
dev_err(chip->card->dev, |
|
"Invalid formats 0x%x for 0x%x", val, nid); |
|
return -EINVAL; |
|
} |
|
return 0; |
|
} |
|
|
|
int lola_init_pcm(struct lola *chip, int dir, int *nidp) |
|
{ |
|
struct lola_pcm *pcm = &chip->pcm[dir]; |
|
int i, nid, err; |
|
|
|
nid = *nidp; |
|
for (i = 0; i < pcm->num_streams; i++, nid++) { |
|
err = lola_init_stream(chip, &pcm->streams[i], i, nid, dir); |
|
if (err < 0) |
|
return err; |
|
} |
|
*nidp = nid; |
|
return 0; |
|
}
|
|
|