tjh.dev
Linux kernel mirror (for testing)
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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
61enum audio_device {
62 TAS2781 = 0,
63};
64
65enum device_catlog_id {
66 LENOVO = 0,
67 OTHERS
68};
69
70struct 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
81struct tasdevice_irqinfo {
82 int irq_gpio;
83 int irq;
84};
85
86struct calidata {
87 unsigned char *data;
88 unsigned long total_sz;
89};
90
91struct tasdevice_priv {
92 struct tasdevice tasdevice[TASDEVICE_MAX_CHANNELS];
93 struct tasdevice_irqinfo irq_info;
94 struct tasdevice_rca rcabin;
95 struct calidata cali_data;
96 struct tasdevice_fw *fmw;
97 struct gpio_desc *reset;
98 struct mutex codec_lock;
99 struct regmap *regmap;
100 struct device *dev;
101 struct tm tm;
102
103 enum device_catlog_id catlog_id;
104 const char *acpi_subsystem_id;
105 unsigned char cal_binaryname[TASDEVICE_MAX_CHANNELS][64];
106 unsigned char crc8_lkp_tbl[CRC8_TABLE_SIZE];
107 unsigned char coef_binaryname[64];
108 unsigned char rca_binaryname[64];
109 unsigned char dev_name[32];
110 unsigned char ndev;
111 unsigned int magic_num;
112 unsigned int chip_id;
113 unsigned int sysclk;
114
115 int cur_prog;
116 int cur_conf;
117 int fw_state;
118 int index;
119 void *client;
120 void *codec;
121 bool force_fwload_status;
122 bool playback_started;
123 bool isacpi;
124 int (*fw_parse_variable_header)(struct tasdevice_priv *tas_priv,
125 const struct firmware *fmw, int offset);
126 int (*fw_parse_program_data)(struct tasdevice_priv *tas_priv,
127 struct tasdevice_fw *tas_fmw,
128 const struct firmware *fmw, int offset);
129 int (*fw_parse_configuration_data)(struct tasdevice_priv *tas_priv,
130 struct tasdevice_fw *tas_fmw,
131 const struct firmware *fmw, int offset);
132 int (*tasdevice_load_block)(struct tasdevice_priv *tas_priv,
133 struct tasdev_blk *block);
134};
135
136void tas2781_reset(struct tasdevice_priv *tas_dev);
137int tascodec_init(struct tasdevice_priv *tas_priv, void *codec,
138 void (*cont)(const struct firmware *fw, void *context));
139struct tasdevice_priv *tasdevice_kzalloc(struct i2c_client *i2c);
140int tasdevice_init(struct tasdevice_priv *tas_priv);
141void tasdevice_remove(struct tasdevice_priv *tas_priv);
142int tasdevice_dev_read(struct tasdevice_priv *tas_priv,
143 unsigned short chn, unsigned int reg, unsigned int *value);
144int tasdevice_dev_write(struct tasdevice_priv *tas_priv,
145 unsigned short chn, unsigned int reg, unsigned int value);
146int 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);
149int 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);
152int tasdevice_dev_update_bits(
153 struct tasdevice_priv *tasdevice, unsigned short chn,
154 unsigned int reg, unsigned int mask, unsigned int value);
155int tasdevice_amp_putvol(struct tasdevice_priv *tas_priv,
156 struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc);
157int tasdevice_amp_getvol(struct tasdevice_priv *tas_priv,
158 struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc);
159int tasdevice_digital_putvol(struct tasdevice_priv *tas_priv,
160 struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc);
161int 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__ */