From 8c7d77006f9427ddb8b563e928cfab319157866c Mon Sep 17 00:00:00 2001 From: Vegard Storheil Eriksen Date: Sat, 8 Oct 2011 22:18:28 +0200 Subject: Interrupt driven I2C. --- i2c.h | 28 ++++++++++++++++++++++++++-- 1 file changed, 26 insertions(+), 2 deletions(-) (limited to 'i2c.h') diff --git a/i2c.h b/i2c.h index 0681160..3d58056 100644 --- a/i2c.h +++ b/i2c.h @@ -3,12 +3,36 @@ #include +#include "interrupt.h" + class I2C { + friend void interrupt(); + friend void interrupt(); + + private: + static I2C* self; + + volatile uint8_t addr; + volatile uint8_t writing; + volatile uint8_t reading; + volatile uint8_t* write_p; + volatile uint8_t* read_p; + + volatile bool busy; + + void irq_ev(); + void irq_er(); + void handle_error(); + public: + I2C() { + self = this; + } + void enable(); - void write_reg(uint8_t addr, uint8_t reg, uint8_t data); - void read_reg(uint8_t addr, uint8_t reg, uint8_t len, uint8_t* buf); + void write_reg(uint8_t addr_, uint8_t reg, uint8_t data); + void read_reg(uint8_t addr_, uint8_t reg, uint8_t len, uint8_t* buf); }; -- cgit v1.2.3