X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/rsbs2/blobdiff_plain/20ef0f397c40ec362d25b6349b3e3383e80fc2af..d51930558a73dd1083b924159971d4c77df411e6:/bmc/i2c.c?ds=inline

diff --git a/bmc/i2c.c b/bmc/i2c.c
index 4ada02e..6550c92 100644
--- a/bmc/i2c.c
+++ b/bmc/i2c.c
@@ -2,7 +2,7 @@
 #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);
@@ -21,6 +21,47 @@ void i2c_init()
 	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) {
@@ -47,7 +88,7 @@ ISR (TWI_vect, ISR_BLOCK)
 #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;