void R_SWITCHES_Init (void)
{
/* Unlock protection register */
MPC.PWPR.BYTE &= 0x7F;
/* Unlock MPC registers */
MPC.PWPR.BYTE |= 0x40;
/* Make switch pins inputs. */
PORT3.PDR.BYTE &= 0xFC;
PORTE.PDR.BYTE &= 0xEF;
/* Set port mode registers for switches. */
PORT3.PMR.BYTE &= 0xFC;
PORTE.PMR.BYTE &= 0xEF;
MPC_P30PFS_REG = 0x40; /* P30 is used as IRQ pin */
MPC_P31PFS_REG = 0x40; /* P31 is used as IRQ pin */
MPC_PE4PFS_REG = 0x40; /* PE4 is used as IRQ pin */
/* Set IRQ type (falling edge) */
ICU.IRQCR[ SW1_IRQ_NUMBER ].BYTE = 0x04;
ICU.IRQCR[ SW2_IRQ_NUMBER ].BYTE = 0x04;
ICU.IRQCR[ SW3_IRQ_NUMBER ].BYTE = 0x04;
/* Set interrupt priorities, which must be below
configMAX_SYSCALL_INTERRUPT_PRIORITY. */
_IPR( X_IRQ(SW1_IRQ_NUMBER) ) = configKERNEL_INTERRUPT_PRIORITY;
_IPR( X_IRQ(SW2_IRQ_NUMBER) ) = configKERNEL_INTERRUPT_PRIORITY;
_IPR( X_IRQ(SW3_IRQ_NUMBER) ) = configKERNEL_INTERRUPT_PRIORITY;
/* Clear any pending interrupts */
_IR( X_IRQ(SW1_IRQ_NUMBER) ) = 0;
_IR( X_IRQ(SW2_IRQ_NUMBER) ) = 0;
_IR( X_IRQ(SW3_IRQ_NUMBER) ) = 0;
/* Enable the interrupts */
_IEN( X_IRQ(SW1_IRQ_NUMBER) ) = 1;
_IEN( X_IRQ(SW2_IRQ_NUMBER) ) = 1;
_IEN( X_IRQ(SW3_IRQ_NUMBER) ) = 1;
}
/***********************************************************************************************************************
* Function Name: R_SWITCHES_Init
* Description : Initializes pins to be input and interrupt on switch presses.
* Arguments : detection_hz -
* The times per second that the user will call R_SWITCHES_Update(). NOTE: this is only when using
* polling mode. If you are using interrupt mode, then this argument will be ignored.
* debouce_counts -
* The number of times to check the port value before accepting the change. The slower the rate at
* which R_SWITCHES_Update() will likely lower this number.
* Return Value : none
***********************************************************************************************************************/
void R_SWITCHES_Init (uint32_t detection_hz, uint32_t debounce_counts)
{
uint32_t i;
/* The SW#_XXX defintions are common macros amongst different boards. To see the definitions for these macros
see the board defintion file. For example, this file for the RSKRX63N is rskrx63n.h. */
#if defined(MCU_RX62N) || defined(MCU_RX62T) || defined(MCU_RX621) || defined(MCU_RX610)
/* Make switch pins inputs. */
SW1_DDR = 0;
SW2_DDR = 0;
SW3_DDR = 0;
/* Enable input buffer control registers. */
SW1_ICR = 1;
SW2_ICR = 1;
SW3_ICR = 1;
#elif defined(MCU_RX63N) || defined(MCU_RX630) || defined(MCU_RX631) || defined(MCU_RX210) || defined(MCU_RX111)
/* Unlock protection register */
MPC.PWPR.BIT.B0WI = 0 ;
/* Unlock MPC registers */
MPC.PWPR.BIT.PFSWE = 1 ;
/* Make switch pins inputs. */
SW1_PDR = 0;
SW2_PDR = 0;
SW3_PDR = 0;
/* Set port mode registers for switches. */
SW1_PMR = 0;
SW2_PMR = 0;
SW3_PMR = 0;
#endif
#if SWITCHES_DETECTION_MODE == 0
#if defined(PLATFORM_BOARD_RDKRX63N)
/* The switches on the RDKRX63N are connected to the following pins/IRQ's
Switch Port IRQ
------ ---- ----
SW1 P4.0 IRQ8
SW2 P4.1 IRQ9
SW3 P4.4 IRQ12
*/
MPC.P40PFS.BYTE = 0x40; /* P40 is used as IRQ pin */
MPC.P41PFS.BYTE = 0x40; /* P40 is used as IRQ pin */
MPC.P44PFS.BYTE = 0x40; /* P40 is used as IRQ pin */
#elif defined(PLATFORM_BOARD_RSKRX63N)
/* The switches on the RSKRX63N are connected to the following pins/IRQ's
Switch Port IRQ
------ ---- ----
SW1 P3.2 IRQ2
SW2 P0.0 IRQ8
SW3 P0.7 IRQ15
*/
MPC.P32PFS.BYTE = 0x40; /* P32 is used as IRQ pin */
MPC.P00PFS.BYTE = 0x40; /* P00 is used as IRQ pin */
MPC.P07PFS.BYTE = 0x40; /* P07 is used as IRQ pin */
#elif defined(PLATFORM_BOARD_RSKRX630)
/* The switches on the RSKRX630 are connected to the following pins/IRQ's
Switch Port IRQ
------ ---- ----
SW1 P3.2 IRQ2
SW2 P4.4 IRQ12
SW3 P0.7 IRQ15
*/
MPC.P32PFS.BYTE = 0x40; /* P32 is used as IRQ pin */
MPC.P44PFS.BYTE = 0x40; /* P44 is used as IRQ pin */
MPC.P07PFS.BYTE = 0x40; /* P07 is used as IRQ pin */
#elif defined(PLATFORM_BOARD_RSKRX62N)
/* The switches on the RSKRX62N are connected to the following pins/IRQ's
Switch Port IRQ
------ ---- ----
SW1 P0.0 IRQ8-A
SW2 P0.1 IRQ9-A
SW3 P0.7 IRQ15-A
*/
IOPORT.PF8IRQ.BIT.ITS8 = 0; /* IRQ8-A pin is used. */
IOPORT.PF8IRQ.BIT.ITS9 = 0; /* IRQ9-A pin is used. */
IOPORT.PF8IRQ.BIT.ITS15 = 0; /* IRQ15-A pin is used. */
#elif defined(PLATFORM_BOARD_RDKRX62N)
/* The switches on the RDKRX62N are connected to the following pins/IRQ's
Switch Port IRQ
------ ---- ----
SW1 P4.0 IRQ8
SW2 P4.1 IRQ9
SW3 P4.2 IRQ10
*/
/* Nothing else needed to do here since RDK has 100-pin package and there are no alternate pins to choose. */
#elif defined(PLATFORM_BOARD_RSKRX62T)
/* The switches on the RSKRX62T are connected to the following pins/IRQ's
Switch Port IRQ
------ ---- ----
SW1 PE.5 IRQ0-B
SW2 PE.4 IRQ1-B
SW3 PB.4 IRQ3
*/
IOPORT.PF8IRQ.BIT.ITS0 = 1; /* IRQ0-B pin is used. */
IOPORT.PF8IRQ.BIT.ITS1 = 1; /* IRQ1-B pin is used. */
/* IRQ3 is only on 1 pin. */
#elif defined(PLATFORM_BOARD_RSKRX610)
/* The switches on the RSKRX610 are connected to the following pins/IRQ's
Switch Port IRQ
------ ---- ----
SW1 P0.0 IRQ8-A
SW2 P0.1 IRQ9-A
SW3 P1.3 IRQ3-B
*/
IOPORT.PFCR8.BIT.ITS8 = 0; /* IRQ8-A pin is used. */
IOPORT.PFCR8.BIT.ITS9 = 0; /* IRQ9-A pin is used. */
IOPORT.PFCR9.BIT.ITS3 = 1; /* IRQ3-B pin is used. */
/* Enable IRQ detection. */
ICU.IRQER[SW1_IRQ_NUMBER].BIT.IRQEN = 1;
ICU.IRQER[SW2_IRQ_NUMBER].BIT.IRQEN = 1;
ICU.IRQER[SW3_IRQ_NUMBER].BIT.IRQEN = 1;
#elif defined(PLATFORM_BOARD_RSKRX210)
/* The switches on the RSKRX210 are connected to the following pins/IRQ's
Switch Port IRQ
------ ---- ----
SW1 P3.1 IRQ1
SW2 P3.3 IRQ3
SW3 P3.4 IRQ4
*/
MPC.P31PFS.BYTE = 0x40; /* P31 is used as IRQ pin */
MPC.P33PFS.BYTE = 0x40; /* P33 is used as IRQ pin */
MPC.P34PFS.BYTE = 0x40; /* P34 is used as IRQ pin */
#elif defined(PLATFORM_BOARD_RSKRX111)
/* The switches on the RSKRX210 are connected to the following pins/IRQ's
Switch Port IRQ
------ ---- ----
SW1 P3.0 IRQ0
SW2 P3.1 IRQ1
SW3 PE.4 IRQ4
*/
MPC.P30PFS.BYTE = 0x40; /* P30 is used as IRQ pin */
MPC.P31PFS.BYTE = 0x40; /* P31 is used as IRQ pin */
MPC.PE4PFS.BYTE = 0x40; /* PE4 is used as IRQ pin */
#endif
/* Set IRQ type (falling edge) */
ICU.IRQCR[SW1_IRQ_NUMBER].BIT.IRQMD = 0x01;
ICU.IRQCR[SW2_IRQ_NUMBER].BIT.IRQMD = 0x01;
ICU.IRQCR[SW3_IRQ_NUMBER].BIT.IRQMD = 0x01;
/* Set interrupt priorities which muse be below
configMAX_SYSCALL_INTERRUPT_PRIORITY. */
_IPR( X_IRQ(SW1_IRQ_NUMBER) ) = configKERNEL_INTERRUPT_PRIORITY;
_IPR( X_IRQ(SW2_IRQ_NUMBER) ) = configKERNEL_INTERRUPT_PRIORITY;
_IPR( X_IRQ(SW3_IRQ_NUMBER) ) = configKERNEL_INTERRUPT_PRIORITY;
/* Clear any pending interrupts */
_IR( X_IRQ(SW1_IRQ_NUMBER) ) = 0;
_IR( X_IRQ(SW2_IRQ_NUMBER) ) = 0;
_IR( X_IRQ(SW3_IRQ_NUMBER) ) = 0;
/* Enable the interrupts */
_IEN( X_IRQ(SW1_IRQ_NUMBER) ) = 1;
_IEN( X_IRQ(SW2_IRQ_NUMBER) ) = 1;
_IEN( X_IRQ(SW3_IRQ_NUMBER) ) = 1;
#else
/* This is based upon having 3 counts at 10Hz. */
g_sw_debounce_cnts = debounce_counts;
/* Init debounce structures. */
for (i = 0; i < SWITCHES_NUM; i++)
{
g_switches[i].active = false;
g_switches[i].debounce_cnt = 0;
}
#endif /* SWITCHES_DETECTION_MODE */
}
