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)
125 lines
4.8 KiB
C
125 lines
4.8 KiB
C
/*
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* Copyright (C) 2016 MediaTek Inc.
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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 as
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* 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.
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* See http://www.gnu.org/licenses/gpl-2.0.html for more details.
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*/
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/*
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* Copyright(C)2014 MediaTek Inc.
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* Modification based on code covered by the below mentioned copyright
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* and/or permission notice(S).
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*/
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#include "hwmsensor.h"
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#include <linux/i2c.h>
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#include <linux/types.h>
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#ifndef __HWMSEN_HELPER_H__
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#define __HWMSEN_HELPER_H__
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#define C_I2C_FIFO_SIZE 8 /*according i2c_mt6516.c */
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struct hwmsen_reg {
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const char *name;
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u16 addr;
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u16 mode;
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u16 mask;
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u16 len;
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};
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/*----------------------------------------------------------------------------*/
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#define HWMSEN_DUMMY_REG(X) \
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{ \
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NULL, X, REG_NA, 0x00, 0 \
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}
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/*----------------------------------------------------------------------------*/
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struct hwmsen_reg_test_multi {
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u8 addr;
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u8 len;
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u8 mode;
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u8 _align;
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};
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/*----------------------------------------------------------------------------*/
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enum {
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REG_NA = 0x0000,
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REG_RO = 0x0001,
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REG_WO = 0x0002,
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REG_LK = 0x0004, /*lcoked, register test will by-pass this register */
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REG_RW = REG_RO | REG_WO,
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};
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/*----------------------------------------------------------------------------*/
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/*
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* @sign, map: only used in accelerometer/magnetic field
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* sometimes, the sensor output need to be remapped before reporting to
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* framework.
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* the 'sign' is only -1 or +1 to align the sign for framework's coordinate
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* system
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* the 'map' align the value for framework's coordinate system. Take
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* accelerometer
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* as an example:
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* assume HAL receives original acceleration: acc[] = {100, 0, 100}
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* sign[] = {1, -1, 1, 0};
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* map[] = {HWM_CODE_ACC_Y, HWM_CODE_ACC_X, HWM_CODE_ACC_Z, 0};
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* according to the above 'sign' & 'map', the sensor output need to remap
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* as {y, -x, z}:
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* float resolution = unit_numerator*GRAVITY_EARTH/unit_denominator;
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* acc_x = sign[0]*acc[map[0]]*resolution;
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* acc_y = sign[1]*acc[map[1]]*resolution;
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* acc_z = sign[2]*acc[map[2]]*resolution;
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*/
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struct hwmsen_convert {
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s8 sign[C_MAX_HWMSEN_EVENT_NUM];
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u8 map[C_MAX_HWMSEN_EVENT_NUM];
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};
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/*----------------------------------------------------------------------------*/
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struct hwmsen_conf {
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/*output sensitivity of sensor data */
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s32 sensitivity[C_MAX_HWMSEN_EVENT_NUM];
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int num;
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};
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/*----------------------------------------------------------------------------*/
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typedef struct hwmsen_reg *(*find_reg_t)(int reg_idx);
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/*----------------------------------------------------------------------------*/
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extern int hwmsen_set_bits(struct i2c_client *client, u8 addr, u8 bits);
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extern int hwmsen_clr_bits(struct i2c_client *client, u8 addr, u8 bits);
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extern int hwmsen_read_byte(struct i2c_client *client, u8 addr, u8 *data);
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extern int hwmsen_write_byte(struct i2c_client *client, u8 addr, u8 data);
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extern int hwmsen_read_block(struct i2c_client *client, u8 addr, u8 *data,
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u8 len);
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extern int hwmsen_write_block(struct i2c_client *client, u8 addr, u8 *data,
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u8 len);
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extern void hwmsen_single_rw(struct i2c_client *client, struct hwmsen_reg *regs,
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int num);
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extern void hwmsen_multi_rw(struct i2c_client *client, find_reg_t findreg,
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struct hwmsen_reg_test_multi *items, int inum);
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extern ssize_t hwmsen_show_dump(struct i2c_client *client, u8 startAddr,
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u8 *regtbl, u32 regnum, find_reg_t findreg,
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char *buf, u32 buflen);
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extern ssize_t hwmsen_read_all_regs(struct i2c_client *client,
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struct hwmsen_reg *regs, u32 num, char *buf,
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u32 buflen);
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extern ssize_t hwmsen_show_reg(struct i2c_client *client, u8 addr, char *buf,
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u32 buflen);
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extern ssize_t hwmsen_store_reg(struct i2c_client *client, u8 addr,
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const char *buf, size_t count);
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extern ssize_t hwmsen_show_byte(struct device *dev,
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struct device_attribute *attr, char *buf,
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u32 buflen);
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extern ssize_t hwmsen_store_byte(struct device *dev,
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struct device_attribute *attr, const char *buf,
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size_t count);
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extern ssize_t hwmsen_show_word(struct device *dev,
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struct device_attribute *attr, char *buf,
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u32 buflen);
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extern ssize_t hwmsen_store_word(struct device *dev,
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struct device_attribute *attr, const char *buf,
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size_t count);
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extern int hwmsen_get_convert(int direction, struct hwmsen_convert *cvt);
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/*----------------------------------------------------------------------------*/
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#endif
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