/*FUNCTION*****************************************************************
*
* Function Name : lwgpio_init
* Returned Value : TRUE if succesfull, FALSE otherwise
* Comments :
* Decodes ID to HW specific struct and then performs pin initialization
*
*END*********************************************************************/
bool lwgpio_init
(
/* Pointer to LWGPIO internal structure to be filled in */
LWGPIO_STRUCT_PTR handle,
/* Pin ID, bitmask integer value */
LWGPIO_PIN_ID id,
/* Direction to be set within initialization */
LWGPIO_DIR dir,
/* Value to be set within initialization */
LWGPIO_VALUE value
)
{ /* Body */
uint32_t port_idx, pin_idx;
port_idx = LWGPIO_PORT_FROM_ID(id);
pin_idx = LWGPIO_PIN_FROM_ID(id);
handle->flags = id;
handle->pcr_reg = (uint32_t *) pcr_reg_arr[port_idx] + pin_idx;
handle->gpio_ptr = gpio_ptr_arr[port_idx];
handle->pinmask = 1 << pin_idx;
/* Set value prior to set to output */
if (value != LWGPIO_VALUE_NOCHANGE) {
/* Note: there is no check for values not defined as LWGPIO_VALUE enum */
lwgpio_set_value(handle, value);
}
if (dir != LWGPIO_DIR_NOCHANGE) {
/* Note: there is no check for values not defined as LWGPIO_DIR enum */
lwgpio_set_direction(handle, dir);
}
return TRUE;
}
/*FUNCTION*---------------------------------------------------------------------
*
* Function Name : _bsp_flexbus_lcd_setup
* Returned Value :
* Comments :
* Setup FlexBus for LCD operation
*
*END*-------------------------------------------------------------------------*/
void _bsp_flexbus_lcd_setup (const uint_32 base_address)
{
FB_MemMapPtr fb_ptr = FB_BASE_PTR;
LWGPIO_STRUCT ale_pin;
/* Enable external LCD mapped on CS0 */
fb_ptr->CS[0].CSAR = base_address;
fb_ptr->CS[0].CSCR = FB_CSCR_BLS_MASK |
FB_CSCR_AA_MASK |
FB_CSCR_PS(2) |
FB_CSCR_BEM_MASK;
/*
* The address range is set to 128K because
* the DC signal is connected on address wire
*/
fb_ptr->CS[0].CSMR = FB_CSMR_BAM(1) | FB_CSMR_V_MASK;
lwgpio_init(&ale_pin, GPIO_PORT_E | GPIO_PIN6, LWGPIO_DIR_NOCHANGE, LWGPIO_VALUE_NOCHANGE);
lwgpio_set_direction(&ale_pin, LWGPIO_DIR_OUTPUT);
lwgpio_set_value(&ale_pin, LWGPIO_VALUE_HIGH);
lwgpio_set_functionality(&ale_pin, 1);
}
