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 67