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47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/*
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* Copyright (c) 2018 naehrwert
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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 _I2C_H_
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#define _I2C_H_
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#include "../utils/types.h"
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#define I2C_1 0
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#define I2C_2 1
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#define I2C_3 2
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#define I2C_4 3
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#define I2C_5 4
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#define I2C_6 5
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#define I2C_CNFG 0x00
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#define I2C_CMD_ADDR0 0x01
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#define I2C_CMD_DATA1 0x03
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#define I2C_CMD_DATA2 0x04
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#define I2C_STATUS 0x07
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#define INTERRUPT_STATUS_REGISTER 0x1A
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#define I2C_CLK_DIVISOR_REGISTER 0x1B
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#define I2C_BUS_CLEAR_CONFIG 0x21
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#define I2C_BUS_CLEAR_STATUS 0x22
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#define I2C_CONFIG_LOAD 0x23
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void i2c_init(u32 idx);
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int i2c_send_buf_small(u32 idx, u32 x, u32 y, u8 *buf, u32 size);
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int i2c_recv_buf_small(u8 *buf, u32 size, u32 idx, u32 x, u32 y);
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int i2c_send_byte(u32 idx, u32 x, u32 y, u8 b);
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u8 i2c_recv_byte(u32 idx, u32 x, u32 y);
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#endif
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