1 /* SPDX-License-Identifier: GPL-2.0 */ 2 // 3 // ALSA SoC Texas Instruments TAS2781 Audio Smart Amplifier 4 // 5 // Copyright (C) 2022 - 2023 Texas Instruments Incorporated 6 // https://www.ti.com 7 // 8 // The TAS2781 driver implements a flexible and configurable 9 // algo coefficient setting for one, two, or even multiple 10 // TAS2781 chips. 11 // 12 // Author: Shenghao Ding <shenghao-ding@ti.com> 13 // Author: Kevin Lu <kevin-lu@ti.com> 14 // 15 16 #ifndef __TAS2781_H__ 17 #define __TAS2781_H__ 18 19 #include "tas2781-dsp.h" 20 21 /* version number */ 22 #define TAS2781_DRV_VER 1 23 #define SMARTAMP_MODULE_NAME "tas2781" 24 #define TAS2781_GLOBAL_ADDR 0x40 25 #define TASDEVICE_RATES (SNDRV_PCM_RATE_44100 |\ 26 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 |\ 27 SNDRV_PCM_RATE_88200) 28 29 #define TASDEVICE_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ 30 SNDRV_PCM_FMTBIT_S24_LE | \ 31 SNDRV_PCM_FMTBIT_S32_LE) 32 33 /*PAGE Control Register (available in page0 of each book) */ 34 #define TASDEVICE_PAGE_SELECT 0x00 35 #define TASDEVICE_BOOKCTL_PAGE 0x00 36 #define TASDEVICE_BOOKCTL_REG 127 37 #define TASDEVICE_BOOK_ID(reg) (reg / (256 * 128)) 38 #define TASDEVICE_PAGE_ID(reg) ((reg % (256 * 128)) / 128) 39 #define TASDEVICE_PAGE_REG(reg) ((reg % (256 * 128)) % 128) 40 #define TASDEVICE_PGRG(reg) (reg % (256 * 128)) 41 #define TASDEVICE_REG(book, page, reg) (((book * 256 * 128) + \ 42 (page * 128)) + reg) 43 44 /*Software Reset */ 45 #define TAS2781_REG_SWRESET TASDEVICE_REG(0x0, 0X0, 0x01) 46 #define TAS2781_REG_SWRESET_RESET BIT(0) 47 48 /*I2C Checksum */ 49 #define TASDEVICE_I2CChecksum TASDEVICE_REG(0x0, 0x0, 0x7E) 50 51 /* Volume control */ 52 #define TAS2781_DVC_LVL TASDEVICE_REG(0x0, 0x0, 0x1A) 53 #define TAS2781_AMP_LEVEL TASDEVICE_REG(0x0, 0x0, 0x03) 54 #define TAS2781_AMP_LEVEL_MASK GENMASK(5, 1) 55 56 #define TASDEVICE_CMD_SING_W 0x1 57 #define TASDEVICE_CMD_BURST 0x2 58 #define TASDEVICE_CMD_DELAY 0x3 59 #define TASDEVICE_CMD_FIELD_W 0x4 60 61 enum audio_device { 62 TAS2781 = 0, 63 }; 64 65 enum device_catlog_id { 66 LENOVO = 0, 67 OTHERS 68 }; 69 70 struct tasdevice { 71 struct tasdevice_fw *cali_data_fmw; 72 unsigned int dev_addr; 73 unsigned int err_code; 74 unsigned char cur_book; 75 short cur_prog; 76 short cur_conf; 77 bool is_loading; 78 bool is_loaderr; 79 }; 80 81 struct calidata { 82 unsigned char *data; 83 unsigned long total_sz; 84 }; 85 86 struct tasdevice_priv { 87 struct tasdevice tasdevice[TASDEVICE_MAX_CHANNELS]; 88 struct tasdevice_rca rcabin; 89 struct calidata cali_data; 90 struct tasdevice_fw *fmw; 91 struct gpio_desc *reset; 92 struct mutex codec_lock; 93 struct regmap *regmap; 94 struct device *dev; 95 struct tm tm; 96 97 enum device_catlog_id catlog_id; 98 unsigned char cal_binaryname[TASDEVICE_MAX_CHANNELS][64]; 99 unsigned char crc8_lkp_tbl[CRC8_TABLE_SIZE]; 100 unsigned char coef_binaryname[64]; 101 unsigned char rca_binaryname[64]; 102 unsigned char dev_name[32]; 103 unsigned char ndev; 104 unsigned int magic_num; 105 unsigned int chip_id; 106 unsigned int sysclk; 107 108 int irq; 109 int cur_prog; 110 int cur_conf; 111 int fw_state; 112 int index; 113 void *client; 114 void *codec; 115 bool force_fwload_status; 116 bool playback_started; 117 bool isacpi; 118 int (*fw_parse_variable_header)(struct tasdevice_priv *tas_priv, 119 const struct firmware *fmw, int offset); 120 int (*fw_parse_program_data)(struct tasdevice_priv *tas_priv, 121 struct tasdevice_fw *tas_fmw, 122 const struct firmware *fmw, int offset); 123 int (*fw_parse_configuration_data)(struct tasdevice_priv *tas_priv, 124 struct tasdevice_fw *tas_fmw, 125 const struct firmware *fmw, int offset); 126 int (*tasdevice_load_block)(struct tasdevice_priv *tas_priv, 127 struct tasdev_blk *block); 128 129 int (*save_calibration)(struct tasdevice_priv *tas_priv); 130 void (*apply_calibration)(struct tasdevice_priv *tas_priv); 131 }; 132 133 void tas2781_reset(struct tasdevice_priv *tas_dev); 134 int tascodec_init(struct tasdevice_priv *tas_priv, void *codec, 135 struct module *module, 136 void (*cont)(const struct firmware *fw, void *context)); 137 struct tasdevice_priv *tasdevice_kzalloc(struct i2c_client *i2c); 138 int tasdevice_init(struct tasdevice_priv *tas_priv); 139 void tasdevice_remove(struct tasdevice_priv *tas_priv); 140 int tasdevice_save_calibration(struct tasdevice_priv *tas_priv); 141 void tasdevice_apply_calibration(struct tasdevice_priv *tas_priv); 142 int tasdevice_dev_read(struct tasdevice_priv *tas_priv, 143 unsigned short chn, unsigned int reg, unsigned int *value); 144 int tasdevice_dev_write(struct tasdevice_priv *tas_priv, 145 unsigned short chn, unsigned int reg, unsigned int value); 146 int tasdevice_dev_bulk_write( 147 struct tasdevice_priv *tas_priv, unsigned short chn, 148 unsigned int reg, unsigned char *p_data, unsigned int n_length); 149 int tasdevice_dev_bulk_read(struct tasdevice_priv *tas_priv, 150 unsigned short chn, unsigned int reg, unsigned char *p_data, 151 unsigned int n_length); 152 int tasdevice_dev_update_bits( 153 struct tasdevice_priv *tasdevice, unsigned short chn, 154 unsigned int reg, unsigned int mask, unsigned int value); 155 int tasdevice_amp_putvol(struct tasdevice_priv *tas_priv, 156 struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc); 157 int tasdevice_amp_getvol(struct tasdevice_priv *tas_priv, 158 struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc); 159 int tasdevice_digital_putvol(struct tasdevice_priv *tas_priv, 160 struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc); 161 int tasdevice_digital_getvol(struct tasdevice_priv *tas_priv, 162 struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc); 163 164 #endif /* __TAS2781_H__ */ 165