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 samplerate); 63 void sigmadsp_reset(struct sigmadsp *sigmadsp); 64 65 #endif 66