/*-----------------------------------------------------------------------------
| Function : S32 set_gpio_output(U16 pin_num, U8 set)
+------------------------------------------------------------------------------
| Description : for writing data to the GPIO pins
|
| Parameters : pin_num -
| gpio pin number
| set -
| set/clear information
| Returns : DAL_ERROR is returned if failure else the value returned
| by the lower layer function is passed on.
+-----------------------------------------------------------------------------*/
S32 set_gpio_output(U16 pin_num, U8 set)
{
S32 ret_val = OMAPFLASH_DAL_ERROR;
U8 module_num = pin_num/NUM_OF_BITS_IN_REG + 1;
/* GPIO module to which the GPIO pin number belongs to */
U32 snum = (module_num-1)*NUM_OF_BITS_IN_REG;
U32 offset = pin_num - snum;
/* position of the GPIO pin in respective module register*/
/* check whether the gpio number is valid */
/* if yes continue else return*/
ret_val = check_gpio_pin_num(pin_num);
if(ret_val != OMAPFLASH_SUCCESS)
{
dbg_print(DBG_LEVEL_INFO, "wrong gpio-pin number \n");
return(ret_val);
}
/* if the output pin value has to be made 1,then the data to be
written will be - the bit corresponding to that pin is set
else that bit is cleared and that function is called */
if (set)
{
gpio_write_output_pin(module_num, (1<<offset), (1<<offset));
}
else
{
gpio_write_output_pin(module_num, (1<<offset), (0<<offset));
}
/* return from this function*/
// Commented out in order for CPLD flashing to be speeded up
// dbg_print(DBG_LEVEL_INFO,
// "wrote the data to gpio pin %d \n",pin_num);
return(ret_val);
}
/* Writing data to the GPIO pins. */
S32 set_gpio_output(U16 pin_num, U8 set)
{
S32 ret_val = FAILURE;
/* GPIO module to which the GPIO pin number belongs to. */
U8 module_num = (pin_num / NUM_OF_BITS_IN_REG + 1);
U32 snum = ((module_num - 1) * NUM_OF_BITS_IN_REG);
/* Position of the GPIO pin in respective module register. */
U32 offset = (pin_num - snum);
/*
** Check whether the gpio number is valid.
** if yes continue else return.
*/
ret_val = check_gpio_pin_num(pin_num);
if (SUCCESS != ret_val) {
#ifdef OMAP3530_DEBUG
DEBUG("%s:%d - Wrong gpio-pin number.\r\n", __FILE__, __LINE__);
#endif
return (ret_val);
}
/*
** If the output pin value has to be made 1, then the data to be
** written will be - the bit corresponding to that pin is set
** else that bit is cleared and that function is called.
*/
if (set) {
gpio_write_output_pin(module_num, (1 << offset), (1 << offset));
} else {
gpio_write_output_pin(module_num, (1 << offset), (0 << offset));
}
#ifdef OMAP3530_DEBUG
DEBUG("Wrote the data to gpio pin - %d.\r\n", pin_num);
#endif
return (ret_val);
}
