Ejemplo n.º 1
0
static int i2c_transfer(I2cOps *me, I2cSeg *segments, int seg_count)
{
	RkI2c *bus = container_of(me, RkI2c, ops);
	int res = 0;
	int i;
	I2cSeg *seg = segments;
	for (i = 0; i < seg_count; i++, seg++) {
		res = i2c_do_xfer(bus->reg_addr, *seg);
		if (res)
			break;
	}
	return res;
}
Ejemplo n.º 2
0
int platform_i2c_transfer(unsigned bus, struct i2c_msg *segments,
			  int seg_count)
{
	int i;
	int res = 0;
	struct rk_i2c_regs *regs = (struct rk_i2c_regs *)(i2c_bus[bus]);
	struct i2c_msg *seg = segments;

	for (i = 0; i < seg_count; i++, seg++) {
		res = i2c_do_xfer(regs, *seg);
		if (res)
			break;
	}
	return res;
}
Ejemplo n.º 3
0
/*===========================================================================*/
int i2c3_transfer(struct i2c_msg_s msgs[], int num)
{
	int ret ;
	int retries ;
	int i;
	int delay = 1000;

	retries = retry_time ;
	for (i = retries ;  i > 0; i--) {
		ret = i2c_do_xfer(msgs, num);
		if (ret > 0)
			return ret ;

		PRINTD("%s:i2c_test: retrying transmission\n\r", __func__);
		delay = 1000;
		while (delay == 0)
			delay--;
	}
	wmt_delayus(100) ;

	PRINTD("i2c_err : retried %i times\n\r", retries);
	return -1 ;

}