LXR linux/sound/soc/codecs/sigmadsp.h

   1/*
   2 * Load firmware files from Analog Devices SigmaStudio
   3 *
   4 * Copyright 2009-2011 Analog Devices Inc.
   5 *
   6 * Licensed under the GPL-2 or later.
   7 */
   8
   9#ifndef __SIGMA_FIRMWARE_H__
  10#define __SIGMA_FIRMWARE_H__
  11
  12#include <linux/device.h>
  13#include <linux/regmap.h>
  14#include <linux/list.h>
  15
  16#include <sound/pcm.h>
  17
  18struct sigmadsp;
  19struct snd_soc_component;
  20struct snd_pcm_substream;
  21
  22struct sigmadsp_ops {
  23        int (*safeload)(struct sigmadsp *sigmadsp, unsigned int addr,
  24                        const uint8_t *data, size_t len);
  25};
  26
  27struct sigmadsp {
  28        const struct sigmadsp_ops *ops;
  29
  30        struct list_head ctrl_list;
  31        struct list_head data_list;
  32
  33        struct snd_pcm_hw_constraint_list rate_constraints;
  34
  35        unsigned int current_samplerate;
  36        struct snd_soc_component *component;
  37        struct device *dev;
  38
  39        struct mutex lock;
  40
  41        void *control_data;
  42        int (*write)(void *, unsigned int, const uint8_t *, size_t);
  43        int (*read)(void *, unsigned int, uint8_t *, size_t);
  44};
  45
  46struct sigmadsp *devm_sigmadsp_init(struct device *dev,
  47        const struct sigmadsp_ops *ops, const char *firmware_name);
  48void sigmadsp_reset(struct sigmadsp *sigmadsp);
  49
  50int sigmadsp_restrict_params(struct sigmadsp *sigmadsp,
  51        struct snd_pcm_substream *substream);
  52
  53struct i2c_client;
  54
  55struct sigmadsp *devm_sigmadsp_init_regmap(struct device *dev,
  56        struct regmap *regmap, const struct sigmadsp_ops *ops,
  57        const char *firmware_name);
  58struct sigmadsp *devm_sigmadsp_init_i2c(struct i2c_client *client,
  59        const struct sigmadsp_ops *ops, const char *firmware_name);
  60
  61int sigmadsp_attach(struct sigmadsp *sigmadsp,
  62        struct snd_soc_component *component);
  63int sigmadsp_setup(struct sigmadsp *sigmadsp, unsigned int rate);
  64void sigmadsp_reset(struct sigmadsp *sigmadsp);
  65
  66#endif
  67