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author | Mikkel Jeppesen <[email protected]> | 2018-05-09 18:14:30 +0200 |
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committer | Drashna Jaelre <[email protected]> | 2018-05-09 09:14:30 -0700 |
commit | 00596d55e34c003d55a530366bedfb2ea467bedc (patch) | |
tree | 95e02d77026987b9c34da8b7740f6d8dea5ba840 /keyboards/vitamins_included/i2c.h | |
parent | 749916e6e233f66b554925f120c29e2ce353e90e (diff) | |
download | qmk_firmware-00596d55e34c003d55a530366bedfb2ea467bedc.tar.gz qmk_firmware-00596d55e34c003d55a530366bedfb2ea467bedc.zip |
Added propper support for Lets split vitamins (#2559)0.6.28
* Added support for the upcomming Lets_split vitamins included
* Updated readme
* Corrected header of readme
* Enabled RGB
* Broke everything
* broke some more shit
* Revert "broke some more shit"
This reverts commit 6ad68e6269cc0d04c16564ce9598dfd3db1e23c1.
* Revert "Broke everything"
This reverts commit feeee4e40db15a726f2292b6a9406ef45c1e54a7.
* Fixed USB detection, and RGB on slave
* started modifying readme, to use msys2
* Added support for the upcomming Lets_split vitamins included
* Updated readme
* Corrected header of readme
* Enabled RGB
* Broke everything
* broke some more shit
* Revert "broke some more shit"
This reverts commit 6ad68e6269cc0d04c16564ce9598dfd3db1e23c1.
* Revert "Broke everything"
This reverts commit feeee4e40db15a726f2292b6a9406ef45c1e54a7.
* Fixed USB detection, and RGB on slave
* started modifying readme, to use msys2
* Updated readme to reflect use of msys2 Added avrdude to msys path
* added avrdude option to msys installer
* Removed extra installation of avrdude
* Renamed to vitamins_included and implemented drashnas changes
* Fixed include guard
* Fixed some includes, and added avrdude target to docs.
* Fixed default keyboard
Diffstat (limited to 'keyboards/vitamins_included/i2c.h')
-rw-r--r-- | keyboards/vitamins_included/i2c.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/keyboards/vitamins_included/i2c.h b/keyboards/vitamins_included/i2c.h new file mode 100644 index 0000000000..739d134bee --- /dev/null +++ b/keyboards/vitamins_included/i2c.h @@ -0,0 +1,50 @@ +#ifndef I2C_H +#define I2C_H + +#include <stdint.h> +#include "split_util.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 |