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
  18 struct sigmadsp;
  19 struct snd_soc_component;
  20 struct snd_pcm_substream;
  21
  22 struct sigmadsp_ops {
  23         int (*safeload)(struct sigmadsp *sigmadsp, unsigned int addr,
  24                         const uint8_t *data, size_t len);
  25 };
  26
  27 struct 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
  46 struct sigmadsp *devm_sigmadsp_init(struct device *dev,
  47         const struct sigmadsp_ops *ops, const char *firmware_name);
  48 void sigmadsp_reset(struct sigmadsp *sigmadsp);
  49
  50 int sigmadsp_restrict_params(struct sigmadsp *sigmadsp,
  51         struct snd_pcm_substream *substream);
  52
  53 struct i2c_client;
  54
  55 struct sigmadsp *devm_sigmadsp_init_regmap(struct device *dev,
  56         struct regmap *regmap, const struct sigmadsp_ops *ops,
  57         const char *firmware_name);
  58 struct sigmadsp *devm_sigmadsp_init_i2c(struct i2c_client *client,
  59         const struct sigmadsp_ops *ops, const char *firmware_name);
  60
  61 int sigmadsp_attach(struct sigmadsp *sigmadsp,
  62         struct snd_soc_component *component);
  63 int sigmadsp_setup(struct sigmadsp *sigmadsp, unsigned int rate);
  64 void sigmadsp_reset(struct sigmadsp *sigmadsp);
  65
  66 #endif