static int i2c_startpoll(i2c* i2c_bus, uint8_t addr)
{
int ack = i2c_poll(i2c_bus, addr);
while (ack)
{
ack = i2c_poll(i2c_bus, addr);
}
return ack;
}
void ee_putByte(char value, int addr)
{
if(!eeInitFlag) ee_init();
unsigned char addrArray[] = {(char)(addr >> 8), (char)(addr&0xFF)};
int n = i2c_out(eeprom, 0xA0, addrArray, 2, &value, 1);
while(i2c_poll(eeprom, 0xA0));
}
/* i2c_transfer_wait_poll --
* Initiate I2C bus transfer and wait by poll transaction done flag until
* this transfer will be finished.
*
* PARAMETERS:
* bus - I2C bus number
* msg - pointer to transfer messages array
* nmsg - number of messages in transfer
*
* RETURNS:
* RTEMS_SUCCESSFUL
*/
static rtems_status_code
i2c_transfer_wait_poll(i2c_bus_number bus, i2c_message *msg, int nmsg)
{
/*
* this looks nasty, but is correct:
* we wait in this function, until the poll_done_flag is
* set deep inside the i2c_poll() function
*/
volatile bool poll_done_flag;
rtems_status_code sc;
poll_done_flag = false;
sc = i2c_transfer(bus, nmsg, msg,
i2c_transfer_poll_done_func,(void *)&poll_done_flag);
if (sc != RTEMS_SUCCESSFUL)
return sc;
while (poll_done_flag == false)
{
i2c_poll(bus);
}
return RTEMS_SUCCESSFUL;
}
