diff options
author | Danny <nooges@users.noreply.github.com> | 2019-02-12 19:57:24 -0500 |
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committer | Drashna Jaelre <drashna@live.com> | 2019-02-12 16:57:24 -0800 |
commit | b2ee290c9f506e42dd9c4577c8147646c405aeb0 (patch) | |
tree | 4338c3ee37d2f8380c24624a24d8a4cb81d54693 /keyboards/keebio/bfo9000/i2c.h | |
parent | 994852712dbd183e2c764d624ae8ba7d3efb385a (diff) |
[Keyboard] Move Keebio boards to own folder (#5109)
* Move boards into keebio folder
* Rename keymap
* Update BDN9 files
* Update BFO-9000 files
* Update Chocopad files
* Update Dilly files
* Update Fourier files, collapse rev1 into main
* Update Iris files
* Update Laplace files
* Update Levinson files, fix buswerks keymap
* Update Nyquist files
* Fix keymap issues
* Update Quefrency files
* Update Rorschach files
* Update TF68 files
* Update Viterbi files
* Update Viterbi files
* Update Wavelet files
* Reformat default layout
* Fix up default folder for Iris
* Remove already defined aliases
Diffstat (limited to 'keyboards/keebio/bfo9000/i2c.h')
-rw-r--r-- | keyboards/keebio/bfo9000/i2c.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/keyboards/keebio/bfo9000/i2c.h b/keyboards/keebio/bfo9000/i2c.h new file mode 100644 index 0000000000..c15b6bc506 --- /dev/null +++ b/keyboards/keebio/bfo9000/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 +#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 |