#define soc_component_ret_reg_rw(dai, ret, reg) _soc_component_ret_reg_rw(dai, __func__, ret, reg) staticinlineint _soc_component_ret_reg_rw(struct snd_soc_component *component, constchar *func, int ret, int reg)
{ return snd_soc_ret(component->dev, ret, "at %s() on %s for register: [0x%08x]\n",
func, component->name, reg);
}
staticinlineint soc_component_field_shift(struct snd_soc_component *component, unsignedint mask)
{ if (!mask) {
dev_err(component->dev, "ASoC: error field mask is zero for %s\n",
component->name); return 0;
}
return (ffs(mask) - 1);
}
/* * We might want to check substream by using list. * In such case, we can update these macros.
*/ #define soc_component_mark_push(component, substream, tgt) ((component)->mark_##tgt = substream) #define soc_component_mark_pop(component, tgt) ((component)->mark_##tgt = NULL) #define soc_component_mark_match(component, substream, tgt) ((component)->mark_##tgt == substream)
int snd_soc_component_init(struct snd_soc_component *component)
{ int ret = 0;
if (component->init)
ret = component->init(component);
return soc_component_ret(component, ret);
}
/** * snd_soc_component_set_sysclk - configure COMPONENT system or master clock. * @component: COMPONENT * @clk_id: DAI specific clock ID * @source: Source for the clock * @freq: new clock frequency in Hz * @dir: new clock direction - input/output. * * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
*/ int snd_soc_component_set_sysclk(struct snd_soc_component *component, int clk_id, int source, unsignedint freq, int dir)
{ int ret = -ENOTSUPP;
if (component->driver->set_sysclk)
ret = component->driver->set_sysclk(component, clk_id, source,
freq, dir);
/* * snd_soc_component_set_pll - configure component PLL. * @component: COMPONENT * @pll_id: DAI specific PLL ID * @source: DAI specific source for the PLL * @freq_in: PLL input clock frequency in Hz * @freq_out: requested PLL output clock frequency in Hz * * Configures and enables PLL to generate output clock based on input clock.
*/ int snd_soc_component_set_pll(struct snd_soc_component *component, int pll_id, int source, unsignedint freq_in, unsignedint freq_out)
{ int ret = -EINVAL;
if (component->driver->set_pll)
ret = component->driver->set_pll(component, pll_id, source,
freq_in, freq_out);
/** * snd_soc_component_set_jack - configure component jack. * @component: COMPONENTs * @jack: structure to use for the jack * @data: can be used if codec driver need extra data for configuring jack * * Configures and enables jack detection function.
*/ int snd_soc_component_set_jack(struct snd_soc_component *component, struct snd_soc_jack *jack, void *data)
{ int ret = -ENOTSUPP;
if (component->driver->set_jack)
ret = component->driver->set_jack(component, jack, data);
/** * snd_soc_component_get_jack_type * @component: COMPONENTs * * Returns the jack type of the component * This can either be the supported type or one read from * devicetree with the property: jack-type.
*/ int snd_soc_component_get_jack_type( struct snd_soc_component *component)
{ int ret = -ENOTSUPP;
if (component->driver->get_jack_type)
ret = component->driver->get_jack_type(component);
int snd_soc_component_is_suspended(struct snd_soc_component *component)
{ return component->suspended;
}
int snd_soc_component_probe(struct snd_soc_component *component)
{ int ret = 0;
if (component->driver->probe)
ret = component->driver->probe(component);
return soc_component_ret(component, ret);
}
void snd_soc_component_remove(struct snd_soc_component *component)
{ if (component->driver->remove)
component->driver->remove(component);
}
int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component, struct device_node *ep)
{ int ret = -ENOTSUPP;
if (component->driver->of_xlate_dai_id)
ret = component->driver->of_xlate_dai_id(component, ep);
return soc_component_ret(component, ret);
}
int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component, conststruct of_phandle_args *args, constchar **dai_name)
{ if (component->driver->of_xlate_dai_name) return component->driver->of_xlate_dai_name(component,
args, dai_name); /* * Don't use soc_component_ret here because we may not want to report * the error just yet. If a device has more than one component, the * first may not match and we don't want spam the log with this.
*/ return -ENOTSUPP;
}
void snd_soc_component_setup_regmap(struct snd_soc_component *component)
{ int val_bytes = regmap_get_val_bytes(component->regmap);
/* Errors are legitimate for non-integer byte multiples */ if (val_bytes > 0)
component->val_bytes = val_bytes;
}
#ifdef CONFIG_REGMAP
/** * snd_soc_component_init_regmap() - Initialize regmap instance for the * component * @component: The component for which to initialize the regmap instance * @regmap: The regmap instance that should be used by the component * * This function allows deferred assignment of the regmap instance that is * associated with the component. Only use this if the regmap instance is not * yet ready when the component is registered. The function must also be called * before the first IO attempt of the component.
*/ void snd_soc_component_init_regmap(struct snd_soc_component *component, struct regmap *regmap)
{
component->regmap = regmap;
snd_soc_component_setup_regmap(component);
}
EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap);
/** * snd_soc_component_exit_regmap() - De-initialize regmap instance for the * component * @component: The component for which to de-initialize the regmap instance * * Calls regmap_exit() on the regmap instance associated to the component and * removes the regmap instance from the component. * * This function should only be used if snd_soc_component_init_regmap() was used * to initialize the regmap instance.
*/ void snd_soc_component_exit_regmap(struct snd_soc_component *component)
{
regmap_exit(component->regmap);
component->regmap = NULL;
}
EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap);
#endif
int snd_soc_component_compr_open(struct snd_soc_component *component, struct snd_compr_stream *cstream)
{ int ret = 0;
if (component->driver->compress_ops &&
component->driver->compress_ops->open)
ret = component->driver->compress_ops->open(component, cstream);
/* mark substream if succeeded */ if (ret == 0)
soc_component_mark_push(component, cstream, compr_open);
int snd_soc_component_compr_trigger(struct snd_compr_stream *cstream, int cmd)
{ struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_component *component; int i, ret;
for_each_rtd_components(rtd, i, component) { if (component->driver->compress_ops &&
component->driver->compress_ops->trigger) {
ret = component->driver->compress_ops->trigger(
component, cstream, cmd); if (ret < 0) return soc_component_ret(component, ret);
}
}
staticunsignedint soc_component_read_no_lock( struct snd_soc_component *component, unsignedint reg)
{ int ret; unsignedint val = 0;
if (component->regmap)
ret = regmap_read(component->regmap, reg, &val); elseif (component->driver->read) {
ret = 0;
val = component->driver->read(component, reg);
} else
ret = -EIO;
if (ret < 0) return soc_component_ret_reg_rw(component, ret, reg);
return val;
}
/** * snd_soc_component_read() - Read register value * @component: Component to read from * @reg: Register to read * * Return: read value
*/ unsignedint snd_soc_component_read(struct snd_soc_component *component, unsignedint reg)
{ unsignedint val;
mutex_lock(&component->io_mutex);
val = soc_component_read_no_lock(component, reg);
mutex_unlock(&component->io_mutex);
staticint soc_component_write_no_lock( struct snd_soc_component *component, unsignedint reg, unsignedint val)
{ int ret = -EIO;
if (component->regmap)
ret = regmap_write(component->regmap, reg, val); elseif (component->driver->write)
ret = component->driver->write(component, reg, val);
/** * snd_soc_component_write() - Write register value * @component: Component to write to * @reg: Register to write * @val: Value to write to the register * * Return: 0 on success, a negative error code otherwise.
*/ int snd_soc_component_write(struct snd_soc_component *component, unsignedint reg, unsignedint val)
{ int ret;
mutex_lock(&component->io_mutex);
ret = soc_component_write_no_lock(component, reg, val);
mutex_unlock(&component->io_mutex);
/** * snd_soc_component_update_bits() - Perform read/modify/write cycle * @component: Component to update * @reg: Register to update * @mask: Mask that specifies which bits to update * @val: New value for the bits specified by mask * * Return: 1 if the operation was successful and the value of the register * changed, 0 if the operation was successful, but the value did not change. * Returns a negative error code otherwise.
*/ int snd_soc_component_update_bits(struct snd_soc_component *component, unsignedint reg, unsignedint mask, unsignedint val)
{ bool change; int ret;
if (component->regmap)
ret = regmap_update_bits_check(component->regmap, reg, mask,
val, &change); else
ret = snd_soc_component_update_bits_legacy(component, reg,
mask, val, &change);
/** * snd_soc_component_update_bits_async() - Perform asynchronous * read/modify/write cycle * @component: Component to update * @reg: Register to update * @mask: Mask that specifies which bits to update * @val: New value for the bits specified by mask * * This function is similar to snd_soc_component_update_bits(), but the update * operation is scheduled asynchronously. This means it may not be completed * when the function returns. To make sure that all scheduled updates have been * completed snd_soc_component_async_complete() must be called. * * Return: 1 if the operation was successful and the value of the register * changed, 0 if the operation was successful, but the value did not change. * Returns a negative error code otherwise.
*/ int snd_soc_component_update_bits_async(struct snd_soc_component *component, unsignedint reg, unsignedint mask, unsignedint val)
{ bool change; int ret;
if (component->regmap)
ret = regmap_update_bits_check_async(component->regmap, reg,
mask, val, &change); else
ret = snd_soc_component_update_bits_legacy(component, reg,
mask, val, &change);
/** * snd_soc_component_read_field() - Read register field value * @component: Component to read from * @reg: Register to read * @mask: mask of the register field * * Return: read value of register field.
*/ unsignedint snd_soc_component_read_field(struct snd_soc_component *component, unsignedint reg, unsignedint mask)
{ unsignedint val;
val = snd_soc_component_read(component, reg);
val = (val & mask) >> soc_component_field_shift(component, mask);
/** * snd_soc_component_write_field() - write to register field * @component: Component to write to * @reg: Register to write * @mask: mask of the register field to update * @val: value of the field to write * * Return: 1 for change, otherwise 0.
*/ int snd_soc_component_write_field(struct snd_soc_component *component, unsignedint reg, unsignedint mask, unsignedint val)
{
val = (val << soc_component_field_shift(component, mask)) & mask;
/** * snd_soc_component_async_complete() - Ensure asynchronous I/O has completed * @component: Component for which to wait * * This function blocks until all asynchronous I/O which has previously been * scheduled using snd_soc_component_update_bits_async() has completed.
*/ void snd_soc_component_async_complete(struct snd_soc_component *component)
{ if (component->regmap)
regmap_async_complete(component->regmap);
}
EXPORT_SYMBOL_GPL(snd_soc_component_async_complete);
/** * snd_soc_component_test_bits - Test register for change * @component: component * @reg: Register to test * @mask: Mask that specifies which bits to test * @value: Value to test against * * Tests a register with a new value and checks if the new value is * different from the old value. * * Return: 1 for change, otherwise 0.
*/ int snd_soc_component_test_bits(struct snd_soc_component *component, unsignedint reg, unsignedint mask, unsignedint value)
{ unsignedint old, new;
old = snd_soc_component_read(component, reg); new = (old & ~mask) | value; return old != new;
}
EXPORT_SYMBOL_GPL(snd_soc_component_test_bits);
int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream)
{ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct snd_soc_component *component; int i;
/* FIXME: use 1st pointer */
for_each_rtd_components(rtd, i, component) if (component->driver->pointer) return component->driver->pointer(component, substream);
/* * We're looking for the delay through the full audio path so it needs to * be the maximum of the Components doing transmit and the maximum of the * Components doing receive (ie, all CPUs and all CODECs) rather than * just the maximum of all Components.
*/
for_each_rtd_components(rtd, i, component) { if (!component->driver->delay) continue;
int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream, unsignedint cmd, void *arg)
{ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct snd_soc_component *component; int i;
/* FIXME: use 1st ioctl */
for_each_rtd_components(rtd, i, component) if (component->driver->ioctl) return soc_component_ret(
component,
component->driver->ioctl(component,
substream, cmd, arg));
return snd_pcm_lib_ioctl(substream, cmd, arg);
}
int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream)
{ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct snd_soc_component *component; int i, ret;
for_each_rtd_components(rtd, i, component) { if (component->driver->sync_stop) {
ret = component->driver->sync_stop(component,
substream); if (ret < 0) return soc_component_ret(component, ret);
}
}
return 0;
}
int snd_soc_pcm_component_copy(struct snd_pcm_substream *substream, int channel, unsignedlong pos, struct iov_iter *iter, unsignedlong bytes)
{ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct snd_soc_component *component; int i;
/* FIXME. it returns 1st copy now */
for_each_rtd_components(rtd, i, component) if (component->driver->copy) return soc_component_ret(component,
component->driver->copy(component, substream,
channel, pos, iter, bytes));
/* FIXME. it returns 1st page now */
for_each_rtd_components(rtd, i, component) { if (component->driver->page) {
page = component->driver->page(component,
substream, offset); if (page) return page;
}
}
return NULL;
}
int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *vma)
{ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct snd_soc_component *component; int i;
/* FIXME. it returns 1st mmap now */
for_each_rtd_components(rtd, i, component) if (component->driver->mmap) return soc_component_ret(
component,
component->driver->mmap(component,
substream, vma));
return -EINVAL;
}
int snd_soc_pcm_component_new(struct snd_soc_pcm_runtime *rtd)
{ struct snd_soc_component *component; int ret; int i;
for_each_rtd_components(rtd, i, component) { if (component->driver->pcm_construct) {
ret = component->driver->pcm_construct(component, rtd); if (ret < 0) return soc_component_ret(component, ret);
}
}
return 0;
}
void snd_soc_pcm_component_free(struct snd_soc_pcm_runtime *rtd)
{ struct snd_soc_component *component; int i;
if (!rtd->pcm) return;
for_each_rtd_components(rtd, i, component) if (component->driver->pcm_destruct)
component->driver->pcm_destruct(component, rtd->pcm);
}
int snd_soc_pcm_component_prepare(struct snd_pcm_substream *substream)
{ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct snd_soc_component *component; int i, ret;
for_each_rtd_components(rtd, i, component) { if (component->driver->prepare) {
ret = component->driver->prepare(component, substream); if (ret < 0) return soc_component_ret(component, ret);
}
}
return 0;
}
int snd_soc_pcm_component_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
{ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct snd_soc_component *component; int i, ret;
for_each_rtd_components(rtd, i, component) { if (component->driver->hw_params) {
ret = component->driver->hw_params(component,
substream, params); if (ret < 0) return soc_component_ret(component, ret);
} /* mark substream if succeeded */
soc_component_mark_push(component, substream, hw_params);
}
return 0;
}
void snd_soc_pcm_component_hw_free(struct snd_pcm_substream *substream, int rollback)
{ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct snd_soc_component *component; int i, ret;
for_each_rtd_components(rtd, i, component) { if (rollback && !soc_component_mark_match(component, substream, hw_params)) continue;
if (component->driver->hw_free) {
ret = component->driver->hw_free(component, substream); if (ret < 0)
soc_component_ret(component, ret);
}
staticint soc_component_trigger(struct snd_soc_component *component, struct snd_pcm_substream *substream, int cmd)
{ int ret = 0;
if (component->driver->trigger)
ret = component->driver->trigger(component, substream, cmd);
return soc_component_ret(component, ret);
}
int snd_soc_pcm_component_trigger(struct snd_pcm_substream *substream, int cmd, int rollback)
{ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct snd_soc_component *component; int i, r, ret = 0;
switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
for_each_rtd_components(rtd, i, component) {
ret = soc_component_trigger(component, substream, cmd); if (ret < 0) break;
soc_component_mark_push(component, substream, trigger);
} break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
for_each_rtd_components(rtd, i, component) { if (rollback && !soc_component_mark_match(component, substream, trigger)) continue;
r = soc_component_trigger(component, substream, cmd); if (r < 0)
ret = r; /* use last ret */
soc_component_mark_pop(component, trigger);
}
}
return ret;
}
int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd, void *stream)
{ struct snd_soc_component *component; int i;
for_each_rtd_components(rtd, i, component) { int ret = pm_runtime_get_sync(component->dev); if (ret < 0 && ret != -EACCES) {
pm_runtime_put_noidle(component->dev); return soc_component_ret(component, ret);
} /* mark stream if succeeded */
soc_component_mark_push(component, stream, pm);
}
return 0;
}
void snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime *rtd, void *stream, int rollback)
{ struct snd_soc_component *component; int i;
for_each_rtd_components(rtd, i, component) { if (rollback && !soc_component_mark_match(component, stream, pm)) continue;
int snd_soc_pcm_component_ack(struct snd_pcm_substream *substream)
{ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); struct snd_soc_component *component; int i;
/* FIXME: use 1st pointer */
for_each_rtd_components(rtd, i, component) if (component->driver->ack) return component->driver->ack(component, substream);
return 0;
}
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