#include <avr/interrupt.h>
#include <stdio.h>
#include "i2c.h"
-#include "bmc.h"
+#include "ipmb.h"
#define TWCR_ACK TWCR = (1<<TWEN)|(1<<TWIE)|(1<<TWINT)|(1<<TWEA)|(0<<TWSTA)|(0<<TWSTO)|(0<<TWWC);
#define TWCR_NACK TWCR = (1<<TWEN)|(1<<TWIE)|(1<<TWINT)|(0<<TWEA)|(0<<TWSTA)|(0<<TWSTO)|(0<<TWWC);
PORTC = 0x03;
}
+void i2c_send(unsigned char *buf, int len)
+{
+ uint8_t old_TWCR = TWCR;
+ uint8_t old_SREG = SREG;
+ int i;
+
+ cli();
+
+ TWCR = ((1<<TWINT) | (1<<TWSTA) | (1<<TWEN)); /* Send start */
+
+ while(!(TWCR & (1<<TWINT))) {}
+ if ((TW_STATUS & 0xf8) != TW_START)
+ goto out;
+
+ TWDR = buf[0]; /* SLA_W */
+ TWCR = ((1<<TWINT) | (1<<TWEN));
+
+ while(!(TWCR & (1<<TWINT))) {}
+ if ((TW_STATUS & 0xf8) != TW_MT_SLA_ACK)
+ goto out;
+
+ for(i = 1; i < len; i++) {
+ TWDR = buf[i]; /* Send Data */
+ TWCR = ((1<<TWINT) | (1<<TWEN));
+
+ while(!(TWCR & (1<<TWINT))) {}
+ if ((TW_STATUS & 0xf8) != TW_MT_DATA_ACK)
+ goto out;
+ }
+
+ TWCR = ((1<<TWINT) | (1<<TWEN) | (1<<TWSTO));
+
+ printf("I2C Data sent 0x%02x\n", TW_STATUS);
+
+
+out:
+ TWDR = 0x00;
+ TWCR = old_TWCR;
+ SREG = old_SREG;
+}
+
ISR (TWI_vect, ISR_BLOCK)
{
switch (TW_STATUS) {
#ifdef DEBUG
printf("I2C: STOP received\n");
#endif
- decode_bmc_cmd((unsigned char*)databuf, pos);
+ decode_ipmb_pkt((unsigned char*)databuf, pos);
pos = 0x00;
TWCR_RESET;
break;