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ackbtn driver: Add possible FST-01 and FST-01G support.

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NIIBE Yutaka
2018-11-12 11:49:40 +09:00
parent 1369361e59
commit fd98c5e162
2 changed files with 26 additions and 1 deletions
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6
ChangeLog
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@@ -1,3 +1,9 @@
2018-11-12 NIIBE Yutaka <gniibe@fsij.org>
* contrib/ackbtn-stm32f103.c (ackbtn_init): Support FST-01 and
FST-01G, using PA2.
(ackbtn_disable): Fix to correctly clear pending interrupt.
2018-11-09 NIIBE Yutaka <gniibe@fsij.org>
* eventflag.c (eventflag_set_mask): New.

19
contrib/ackbtn-stm32f103.c
View File

@@ -34,6 +34,14 @@
#include "board.h"
#include "sys.h"
/*
* All EXTI registers (EXTI_IMR, EXTI_EMR, EXTI_PR , EXTI_RTSR, and
* EXTI_FTSR) have same structure, where each bit of X is used for
* line X, from 0 up to 19.
*
* We use 31-bit of PIN_CONFIG to represent if it's for rising edge or
* falling edge.
*/
static uint32_t pin_config;
#define PINCFG_EDGE 0x80000000
#define PINCFG_EDGE_RISING PINCFG_EDGE
@@ -47,6 +55,16 @@ ackbtn_init (chopstx_intr_t *intr)
switch (SYS_BOARD_ID)
{
case BOARD_ID_FST_01:
case BOARD_ID_FST_01G:
/* PA2 can be connected to a hall sensor or a switch */
afio_exticr_index = 0;
afio_exticr_extiX_pY = AFIO_EXTICR1_EXTI2_PA;
irq_num = EXTI2_IRQ;
pin_config = 0x0004; /* EXTI_PR_PR2 == EXTI_IMR_MR2 == EXTI_RTSR_TR2 */
pin_config |= PINCFG_EDGE_RISING;
break;
case BOARD_ID_FST_01SZ:
default:
/* PA3 is connected to a hall sensor DRV5032FA */
@@ -89,6 +107,7 @@ ackbtn_disable (void)
/* Disable interrupt having the mask */
EXTI->IMR &= ~(pin_config & ~PINCFG_EDGE);
/* Clear pending interrupt */
EXTI->PR |= (pin_config & ~PINCFG_EDGE);
/* Disable edge detection */
EXTI->RTSR &= ~(pin_config & ~PINCFG_EDGE);