static void hsi_ch_notify_to_charger(int error)
{
if(error == 0) { /* No error */
if(ifx_hsi_modem_alive == 0) {
set_modem_alive(1);
ifx_hsi_modem_alive = 1;
#if MCM_DBG_LOG
printk("\nmcm:set_modem_alive on");
#endif
}
}
else { /* -EREMOTEIO */
set_modem_alive(0);
ifx_hsi_modem_alive = 0;
#if MCM_DBG_LOG
printk("\nmcm:set_modem_alive off");
#endif
}
}
static int
ifx_spi_write(struct tty_struct *tty, const unsigned char *buf, int count)
{
struct ifx_spi_data *spi_data = (struct ifx_spi_data *)tty->driver_data;
ifx_ret_count = 0;
#ifdef LGE_DUMP_SPI_BUFFER
dump_spi_buffer("ifx_spi_write()", buf, count);
#elif defined(LGE_VT_DATA_DUMP)
if (count == 167) // 167 means 160(MUX data) + 7 (DLC Frame Header + Tails)
{
// dump_spi_wr_buffer(buf, count);
}
#endif
// hgahn
if(spi_data->ifx_spi_lock)
return ifx_ret_count;
spi_data->ifx_tty = tty;
spi_data->ifx_tty->low_latency = 1;
if( !buf ){
printk("File: ifx_n721_spi.c\tFunction: int ifx_spi_write()\t Buffer NULL\n");
return ifx_ret_count;
}
if(!count){
printk("File: ifx_n721_spi.c\tFunction: int ifx_spi_write()\t Count is ZERO\n");
return ifx_ret_count;
}
ifx_master_initiated_transfer = 1;
ifx_spi_buf = buf;
ifx_spi_count = count;
// LGE_CHANGE_S [[email protected]] 2010-10-11 to retry IPC transmission when SRDY is not signaled by CP
/* original code
ifx_spi_set_mrdy_signal(1);
wait_for_completion(&spi_data->ifx_read_write_completion);
*/
{
int i, max_retry_count=8;
unsigned long timeout=HZ;
long rc;
for (i=0 ; i<max_retry_count ; i++) {
// signal master ready
ifx_spi_set_mrdy_signal(1);
// wait for completion with timeout
rc = wait_for_completion_timeout(
&spi_data->ifx_read_write_completion,
timeout);
if (rc == 0) { // timeout expired, retry
printk("***** unable to detect SREADY within %lu, RETRY (counter=%d) *****\n", timeout, i+1);
// lower master ready
ifx_spi_set_mrdy_signal(0);
//<*****@*****.**> LGE_CHANGE_S ril_retry_count
if(i == (max_retry_count-1))
{
{
set_modem_alive(0);
ifx_ril_is_modem_alive = 0;
}
}
//<*****@*****.**> LGE_CHANGE_E ril_retry_count
// retry after delay
udelay(100); // 20 u sec delay
} else { // success or failure
//printk("wait_for_completion_timeout timeout=%ld\n", timeout);
//<*****@*****.**> LGE_CHANGE_S ril_retry_count
if(!ifx_ril_is_modem_alive)
{
set_modem_alive(1);
ifx_ril_is_modem_alive = 1;
}
//<*****@*****.**> LGE_CHANGE_E ril_retry_count
break;
}
}
}
// LGE_CHANGE_E [[email protected]] 2010-10-11 to retry IPC transmission when SRDY is not signaled by CP
init_completion(&spi_data->ifx_read_write_completion);
return ifx_ret_count; /* Number of bytes sent to the device */
}
