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| author | yfuku <30647434+yfuku@users.noreply.github.com> | 2019-03-31 04:16:18 +0900 |
|---|---|---|
| committer | Drashna Jaelre <drashna@live.com> | 2019-03-30 12:16:18 -0700 |
| commit | 3654d0f080c85da3b2ae33cc035777a445cca769 (patch) | |
| tree | d65ad19caa68aceb64716c04ad6bcf57ba5875c3 /keyboards/claw44/i2c.h | |
| parent | 4f7dd9edf8cf9b546d7c21fcefb7de09f92474db (diff) | |
| download | firmware-3654d0f080c85da3b2ae33cc035777a445cca769.tar.gz firmware-3654d0f080c85da3b2ae33cc035777a445cca769.tar.bz2 firmware-3654d0f080c85da3b2ae33cc035777a445cca769.zip | |
[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
Diffstat (limited to 'keyboards/claw44/i2c.h')
| -rw-r--r-- | keyboards/claw44/i2c.h | 46 |
1 files changed, 46 insertions, 0 deletions
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 <stdint.h> + +#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(); |