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ASoC: sigmadsp: Add support for fw v2

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This patch adds support for the v2 version of the SigmaDSP firmware file
format. The new format has support for having different program and
parameter settings for different samplerates. In addition it stores metadata
describing the firmware. This metadata includes the set of supported
samplerates which will be used to restrict the samplerates that can be
selected by userspace. Also included is information about the modifiable
parameters. Those will be exposed as ALSA controls so they can be changed at
runtime.

The new format is based on a binary type-length-value structure that makes
it both forward and backwards compatible.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Lars-Peter Clausen
2014-11-19 18:29:06 +01:00
committed by Mark Brown
parent d48b088e3e
commit a35daac77a
4 changed files with 504 additions and 2 deletions
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6
sound/soc/codecs/sigmadsp.h
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@@ -27,14 +27,20 @@ struct sigmadsp_ops {
struct sigmadsp {
const struct sigmadsp_ops *ops;
struct list_head ctrl_list;
struct list_head data_list;
struct snd_pcm_hw_constraint_list rate_constraints;
unsigned int current_samplerate;
struct snd_soc_component *component;
struct device *dev;
struct mutex lock;
void *control_data;
int (*write)(void *, unsigned int, const uint8_t *, size_t);
int (*read)(void *, unsigned int, uint8_t *, size_t);
};
struct sigmadsp *devm_sigmadsp_init(struct device *dev,