mirror of
https://github.com/CTCaer/hekate
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185526d134
BDK will allow developers to use the full collection of drivers, with limited editing, if any, for making payloads for Nintendo Switch. Using a single source for everything will also help decoupling Switch specific code and easily port it to other Tegra X1/X1+ platforms. And maybe even to lower targets. Everything is now centrilized into bdk folder. Every module or project can utilize it by simply including it. This is just the start and it will continue to improve.
66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/*
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* Ambient light sensor driver for Nintendo Switch's Rohm BH1730
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*
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* Copyright (c) 2018 CTCaer
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ALS_H_
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#define __ALS_H_
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#include "../utils/types.h"
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#define BH1730_I2C_ADDR 0x29
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#define BH1730_CMD_MAGIC 0x80
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#define BH1730_CMD_SETADDR 0x00
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#define BH1730_CMD_SPECCMD 0x60
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#define BH1730_SPECCMD_RESET 0x4
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#define BH1730_CONTROL_REG 0x00
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#define BH1730_CTL_ADC_VALID 0x10
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#define BH1730_CTL_ONE_TIME 0x08
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#define BH1730_CTL_DAT0_ONLY 0x04
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#define BH1730_CTL_ADC_EN 0x02
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#define BH1730_CTL_POWER_ON 0x01
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#define BH1730_TIMING_REG 0x01
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#define BH1730_GAIN_REG 0x07
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#define BH1730_GAIN_1X 0x00
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#define BH1730_GAIN_2X 0x01
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#define BH1730_GAIN_64X 0x02
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#define BH1730_GAIN_128X 0x03
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#define BH1730_DATA0LOW_REG 0x14
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#define BH1730_DATA0HIGH_REG 0x15
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#define BH1730_DATA1LOW_REG 0x16
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#define BH1730_DATA1HIGH_REG 0x17
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#define BH1730_ADDR(reg) (BH1730_CMD_MAGIC | BH1730_CMD_SETADDR | reg)
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#define BH1730_SPEC(cmd) (BH1730_CMD_MAGIC | BH1730_CMD_SPECCMD | cmd)
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typedef struct _als_table_t
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{
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float lux;
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bool over_limit;
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u32 vi_light;
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u32 ir_light;
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u8 gain;
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u8 itime;
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} als_table_t;
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void set_als_cfg(als_table_t *als_val, u8 gain, u8 itime);
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void get_als_lux(als_table_t *als_val);
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u8 als_init(als_table_t *als_val);
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#endif /* __ALS_H_ */
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