sound/soc/codecs/sigmadsp.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Load firmware files from Analog Devices SigmaStudio
   4  *
   5  * Copyright 2009-2011 Analog Devices Inc.
   6  */
   7
   8 #ifndef __SIGMA_FIRMWARE_H__
   9 #define __SIGMA_FIRMWARE_H__
  10
  11 #include <linux/device.h>
  12 #include <linux/regmap.h>
  13 #include <linux/list.h>
  14
  15 #include <sound/pcm.h>
  16
  17 struct sigmadsp;
  18 struct snd_soc_component;
  19 struct snd_pcm_substream;
  20
  21 struct sigmadsp_ops {
  22         int (*safeload)(struct sigmadsp *sigmadsp, unsigned int addr,
  23                         const uint8_t *data, size_t len);
  24 };
  25
  26 struct sigmadsp {
  27         const struct sigmadsp_ops *ops;
  28
  29         struct list_head ctrl_list;
  30         struct list_head data_list;
  31
  32         struct snd_pcm_hw_constraint_list rate_constraints;
  33
  34         unsigned int current_samplerate;
  35         struct snd_soc_component *component;
  36         struct device *dev;
  37
  38         struct mutex lock;
  39
  40         void *control_data;
  41         int (*write)(void *, unsigned int, const uint8_t *, size_t);
  42         int (*read)(void *, unsigned int, uint8_t *, size_t);
  43 };
  44
  45 struct sigmadsp *devm_sigmadsp_init(struct device *dev,
  46         const struct sigmadsp_ops *ops, const char *firmware_name);
  47 void sigmadsp_reset(struct sigmadsp *sigmadsp);
  48
  49 int sigmadsp_restrict_params(struct sigmadsp *sigmadsp,
  50         struct snd_pcm_substream *substream);
  51
  52 struct i2c_client;
  53
  54 struct sigmadsp *devm_sigmadsp_init_regmap(struct device *dev,
  55         struct regmap *regmap, const struct sigmadsp_ops *ops,
  56         const char *firmware_name);
  57 struct sigmadsp *devm_sigmadsp_init_i2c(struct i2c_client *client,
  58         const struct sigmadsp_ops *ops, const char *firmware_name);
  59
  60 int sigmadsp_attach(struct sigmadsp *sigmadsp,
  61         struct snd_soc_component *component);
  62 int sigmadsp_setup(struct sigmadsp *sigmadsp, unsigned int rate);
  63 void sigmadsp_reset(struct sigmadsp *sigmadsp);
  64
  65 #endif