From 3654d0f080c85da3b2ae33cc035777a445cca769 Mon Sep 17 00:00:00 2001 From: yfuku <30647434+yfuku@users.noreply.github.com> Date: Sun, 31 Mar 2019 04:16:18 +0900 Subject: [Keyboard] add claw44 keyboard (#5511) * add claw44 keyboard * Update keyboards/claw44/lib/layer_state_reader.c Co-Authored-By: yfuku <30647434+yfuku@users.noreply.github.com> * Update keyboards/claw44/lib/layer_state_reader.c Co-Authored-By: yfuku <30647434+yfuku@users.noreply.github.com> * Update keyboards/claw44/lib/layer_state_reader.c Co-Authored-By: yfuku <30647434+yfuku@users.noreply.github.com> * Update keyboards/claw44/lib/layer_state_reader.c Co-Authored-By: yfuku <30647434+yfuku@users.noreply.github.com> * Update keyboards/claw44/readme.md Co-Authored-By: yfuku <30647434+yfuku@users.noreply.github.com> * Remove unnecessary code because of default value * Move layer definition * Update keyboards/claw44/keymaps/default/keymap.c Co-Authored-By: yfuku <30647434+yfuku@users.noreply.github.com> * Update keyboards/claw44/keymaps/yfuku/keymap.c Co-Authored-By: yfuku <30647434+yfuku@users.noreply.github.com> * Update keyboards/claw44/readme.md Co-Authored-By: yfuku <30647434+yfuku@users.noreply.github.com> * default keymap. LAYOUT_kc -> LAYOUT macro * Move rules.mk from keymaps to keyboard level. * add Hardware Supported, Hardware Availability * Update keyboards/claw44/keymaps/default/keymap.c Co-Authored-By: yfuku <30647434+yfuku@users.noreply.github.com> * Update keyboards/claw44/keymaps/yfuku/keymap.c Co-Authored-By: yfuku <30647434+yfuku@users.noreply.github.com> * Remove depreciated function --- keyboards/claw44/i2c.h | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 keyboards/claw44/i2c.h (limited to 'keyboards/claw44/i2c.h') diff --git a/keyboards/claw44/i2c.h b/keyboards/claw44/i2c.h new file mode 100644 index 000000000..710662c7a --- /dev/null +++ b/keyboards/claw44/i2c.h @@ -0,0 +1,46 @@ +#pragma once + +#include + +#ifndef F_CPU +#define F_CPU 16000000UL +#endif + +#define I2C_READ 1 +#define I2C_WRITE 0 + +#define I2C_ACK 1 +#define I2C_NACK 0 + +#define SLAVE_BUFFER_SIZE 0x10 + +// i2c SCL clock frequency 400kHz +#define SCL_CLOCK 400000L + +extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE]; + +void i2c_master_init(void); +uint8_t i2c_master_start(uint8_t address); +void i2c_master_stop(void); +uint8_t i2c_master_write(uint8_t data); +uint8_t i2c_master_read(int); +void i2c_reset_state(void); +void i2c_slave_init(uint8_t address); + + +static inline unsigned char i2c_start_read(unsigned char addr) { + return i2c_master_start((addr << 1) | I2C_READ); +} + +static inline unsigned char i2c_start_write(unsigned char addr) { + return i2c_master_start((addr << 1) | I2C_WRITE); +} + +// from SSD1306 scrips +extern unsigned char i2c_rep_start(unsigned char addr); +extern void i2c_start_wait(unsigned char addr); +extern unsigned char i2c_readAck(void); +extern unsigned char i2c_readNak(void); +extern unsigned char i2c_read(unsigned char ack); + +#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak(); -- cgit v1.2.3