diff options
| author | Legonut <legonut3@gmail.com> | 2018-12-04 21:15:52 -0500 |
|---|---|---|
| committer | Drashna Jaelre <drashna@live.com> | 2018-12-04 18:15:52 -0800 |
| commit | 8a330b33ff41ffc1ec3f8fa39722e93115ea3f0f (patch) | |
| tree | 3ef91766a6063422fb7cd884c377959fa6b2ab39 /keyboards/sol/i2c.h | |
| parent | 6d0dc910d92bc381d3cce9ea712aa47ae40ddf15 (diff) | |
Keyboard: Add new keyboard "Sol" from RGBKB (#4497)
* Add final RGBKB Sol firmware
* Apply suggestions from code review
Apply most of the changes noroadsleft has suggested
Co-Authored-By: Legonut <legonut3@gmail.com>
* Cleanup readme
* Cleanup keymaps per @noroadslefts suggestions
* Remove eeproms, use set_single_persistent_default_layer
* Suggestions from @noroadsleft and @drashna
some small cleanup
* Change RGB_SMOD to RGB_RMOD
* fix RGB_SMOD
* Apply suggestions from code review
Remove redundant lines
Co-Authored-By: Legonut <legonut3@gmail.com>
Diffstat (limited to 'keyboards/sol/i2c.h')
| -rw-r--r-- | keyboards/sol/i2c.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/keyboards/sol/i2c.h b/keyboards/sol/i2c.h new file mode 100644 index 0000000000..47cf6bd1b2 --- /dev/null +++ b/keyboards/sol/i2c.h @@ -0,0 +1,49 @@ +#ifndef I2C_H +#define I2C_H + +#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(); + +#endif |