threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
134 lines
4.0 KiB
C
134 lines
4.0 KiB
C
/*
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* Copyright (C) 2018, SI-IN, Yun Shi (yun.shi@si-in.com).
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _SIA81XX_REGMAP_H
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#define _SIA81XX_REGMAP_H
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#include <linux/regmap.h>
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struct sia81xx_reg_vals {
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const char *vals;
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const unsigned int num;
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};
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struct sia81xx_reg_default_val {
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unsigned int chip_type;
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const unsigned int offset;
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struct sia81xx_reg_vals reg_defaults[AUDIO_SCENE_NUM];
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};
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struct sia81xx_opt_if {
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int (*check_chip_id)(struct regmap *regmap);
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void (*set_xfilter)(struct regmap *regmap, unsigned int val);
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void (*chip_on)(struct regmap *regmap, unsigned int scene);
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void (*chip_off)(struct regmap *regmap);
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bool (*get_chip_en)(struct regmap *regmap);
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void (*set_pvdd_limit)(struct regmap *regmap, unsigned int vol);
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void (*check_trimming)(struct regmap *regmap);
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};
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typedef struct __SIA_CHIP_ID_RANGE {
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uint32_t begin;
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uint32_t end;
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} SIA_CHIP_ID_RANGE;
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typedef struct __SIA_REGS {
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uint8_t addr;
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uint8_t val;
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} SIA_REGS;
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/******************************************************************************
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* Name: CRC-4/ITU x4+x+1
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* Poly: 0x03
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* Init: 0x00
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* Refin: True
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* Refout: True
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* Xorout: 0x00
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* Note:
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*****************************************************************************/
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static inline uint8_t crc4_itu(uint8_t *data, uint32_t length)
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{
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uint8_t i;
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uint8_t crc = 0; // Initial value
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while (length--) {
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crc ^= *data++; // crc ^= *data; data++;
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for (i = 0; i < 8; ++i) {
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if (crc & 1)
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crc = (crc >> 1) ^ 0x0C;// 0x0C = (reverse 0x03)>>(8-4)
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else
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crc = (crc >> 1);
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}
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}
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return crc;
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}
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/******************************************************************************
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* Name: CRC-8/MAXIM x8+x5+x4+1
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* Poly: 0x31
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* Init: 0x00
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* Refin: True
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* Refout: True
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* Xorout: 0x00
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* Alias: DOW-CRC,CRC-8/IBUTTON
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*****************************************************************************/
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static inline uint8_t crc8_maxim(uint8_t *data, uint32_t length)
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{
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uint8_t i;
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uint8_t crc = 0; // Initial value
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while (length--) {
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crc ^= *data++; // crc ^= *data; data++;
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for (i = 0; i < 8; i++) {
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if (crc & 1)
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crc = (crc >> 1) ^ 0x8C; // 0x8C = reverse 0x31
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else
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crc >>= 1;
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}
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}
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return crc;
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}
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int sia81xx_regmap_read(struct regmap *regmap,
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unsigned int start_reg, unsigned int reg_num, char *buf);
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int sia81xx_regmap_write(struct regmap *regmap,
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unsigned int start_reg, unsigned int reg_num, const char *buf);
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void sia81xx_regmap_defaults(struct regmap *regmap,
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unsigned int chip_type, unsigned int scene, unsigned int channel_num);
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struct regmap *sia81xx_regmap_init(struct i2c_client *client,
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unsigned int chip_type);
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void sia81xx_regmap_remove(struct regmap *regmap);
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/* option interface function */
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int sia81xx_regmap_check_chip_id(struct regmap *regmap,
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unsigned int chip_type);
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void sia81xx_regmap_set_xfilter(struct regmap *regmap,
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unsigned int chip_type, unsigned int val);
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void sia81xx_regmap_set_chip_on(struct regmap *regmap,
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unsigned int chip_type, unsigned int scene);
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void sia81xx_regmap_set_chip_off(struct regmap *regmap,
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unsigned int chip_type);
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bool sia81xx_regmap_get_chip_en(struct regmap *regmap,
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unsigned int chip_type);
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void sia81xx_regmap_set_pvdd_limit(struct regmap *regmap,
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unsigned int chip_type, unsigned int vol);
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void sia81xx_regmap_check_trimming(struct regmap *regmap,
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unsigned int chip_type);
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#endif /* _SIA81XX_REGMAP_H */
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