19a85015c2
* Fixed pin for RGB * Added support for second revision of vitamins included * Added rev2 config and switched to #pragma once * Switch to quantum.h pincontrol * Fixed left-half check * Moved revision agnostic code to main header file * Moved common build options to main makefile * Referred to rev2 documentation * JTAG is dissabled in keyboard.c now * moved EEHANDS to rev1 config * moved rev2 to use split_common * Updated default keymaps * Changed handedness ifdef to allow user-overrides * Add some space saving defines * Changed to more sane I2C clock * Removed rev2 check in matrix.c as rev2 uses split_common * Removed rev2 check in rev1 only code * Update debounce constant name Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com> * Switch KEYMAP macro to LAYOUT Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com> * Switch kc_keymap macro to layout_kc Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com> * Switch kc_keymap macro to layout_kc Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com> * Add legacy layout macro alias Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com> * Update keyboards/vitamins_included/rev2/config.h Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com> * Split readme into revision specific versions * Updated src to allow LTO * Renamed readmes to lower-case * Switched my keyboards to FEED VID * Fixed markdown lint errors * fixed readme links Co-Authored-By: noroadsleft <18669334+noroadsleft@users.noreply.github.com> * Maintain keymap backwards compatibility Co-Authored-By: Joel Challis <git@zvecr.com>
51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
#ifndef I2C_H
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#define I2C_H
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#include <stdint.h>
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#include "split_util.h"
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#ifndef F_CPU
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#define F_CPU 16000000UL
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#endif
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#define I2C_READ 1
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#define I2C_WRITE 0
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#define I2C_ACK 1
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#define I2C_NACK 0
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#define SLAVE_BUFFER_SIZE 0x10
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// i2c SCL clock frequency
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#define SCL_CLOCK 100000UL
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extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
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void i2c_master_init(void);
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uint8_t i2c_master_start(uint8_t address);
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void i2c_master_stop(void);
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uint8_t i2c_master_write(uint8_t data);
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uint8_t i2c_master_read(int);
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void i2c_reset_state(void);
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void i2c_slave_init(uint8_t address);
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static inline unsigned char i2c_start_read(unsigned char addr) {
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return i2c_master_start((addr << 1) | I2C_READ);
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}
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static inline unsigned char i2c_start_write(unsigned char addr) {
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return i2c_master_start((addr << 1) | I2C_WRITE);
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}
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// from SSD1306 scrips
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extern unsigned char i2c_rep_start(unsigned char addr);
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extern void i2c_start_wait(unsigned char addr);
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extern unsigned char i2c_readAck(void);
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extern unsigned char i2c_readNak(void);
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extern unsigned char i2c_read(unsigned char ack);
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#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak();
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#endif
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