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move pin change interrupt stuff to peripherals

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This commit is contained in:
Jeff Epler 2023-03-23 09:28:14 -05:00
parent d247e5c6c9
commit de74b63472
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GPG Key ID: D5BF15AB975AB4DE
6 changed files with 106 additions and 101 deletions
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1
ports/mimxrt10xx/Makefile
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@ -136,6 +136,7 @@ SRC_C += \
peripherals/mimxrt10xx/$(CHIP_FAMILY)/clocks.c \
peripherals/mimxrt10xx/$(CHIP_FAMILY)/periph.c \
peripherals/mimxrt10xx/$(CHIP_FAMILY)/pins.c \
peripherals/mimxrt10xx/pins.c \
reset.c \
supervisor/flexspi_nor_flash_ops.c

97
ports/mimxrt10xx/common-hal/microcontroller/Pin.c
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@ -120,104 +120,7 @@ void common_hal_mcu_pin_reset_number(uint8_t pin_no) {
common_hal_reset_pin((mcu_pin_obj_t *)(mcu_pin_globals.map.table[pin_no].value));
}
/* Array of GPIO peripheral base address. */
static GPIO_Type *const s_gpioBases[] = GPIO_BASE_PTRS;
static uint32_t GPIO_GetInstance(GPIO_Type *base) {
uint32_t instance;
/* Find the instance index from base address mappings. */
for (instance = 0U; instance < ARRAY_SIZE(s_gpioBases); instance++)
{
if (s_gpioBases[instance] == base) {
break;
}
}
assert(instance < ARRAY_SIZE(s_gpioBases));
return instance;
}
/* to find IRQ based on GPIO */
static const IRQn_Type low_irqs[] = GPIO_COMBINED_LOW_IRQS;
static const IRQn_Type high_irqs[] = GPIO_COMBINED_HIGH_IRQS;
typedef struct {
gpio_change_interrupt_t *func;
void *data;
} pin_change_interrupt_data;
volatile static pin_change_interrupt_data pcid[MP_ARRAY_SIZE(s_gpioBases)][32];
// The 'data' pointers may be to gc objects, they must be kept alive.
void pin_gc_collect() {
gc_collect_root((void **)&pcid, sizeof(pcid) / sizeof(void *));
}
void enable_pin_change_interrupt(const mcu_pin_obj_t *pin, gpio_change_interrupt_t func, void *data) {
int instance = GPIO_GetInstance(pin->gpio);
volatile pin_change_interrupt_data *pci = &pcid[instance][pin->number];
common_hal_mcu_disable_interrupts();
pci->data = data;
pci->func = func;
IRQn_Type irq = pin->number < 16 ? low_irqs[instance] : high_irqs[instance];
if (irq != NotAvail_IRQn) {
EnableIRQ(irq);
}
pin->gpio->IMR |= (1 << pin->number);
common_hal_mcu_enable_interrupts();
}
void disable_pin_change_interrupt(const mcu_pin_obj_t *pin) {
volatile pin_change_interrupt_data *pci = &pcid[GPIO_GetInstance(pin->gpio)][pin->number];
common_hal_mcu_disable_interrupts();
pin->gpio->IMR &= ~(1 << pin->number);
pci->data = NULL;
pci->func = NULL;
pin->gpio->ISR = (1 << pin->number); // acknowledge any pending interrupt
common_hal_mcu_enable_interrupts();
}
static void pin_change_interrupt_common(uint32_t isr, volatile pin_change_interrupt_data *pcr) {
for (uint32_t i = 0; i < 32; i++) {
if (isr & (1 << i)) {
pin_change_interrupt_data cb = pcr[i];
if (cb.func) {
cb.func(cb.data);
}
}
}
}
#define GPIO_INTERRUPT_HANDLER(name, ptr, instance, offset) \
void name(void); \
__attribute__((used)) void name(void) { \
uint32_t isr = ptr->ISR; \
ptr->ISR = isr; \
pin_change_interrupt_common(isr, pcid[instance]); \
}
#if defined(GPIO1)
GPIO_INTERRUPT_HANDLER(GPIO1_Combined_0_15_IRQHandler, GPIO1, 1, 0);
GPIO_INTERRUPT_HANDLER(GPIO1_Combined_16_31_IRQHandler, GPIO1, 1, 16);
#endif
#if defined(GPIO2)
GPIO_INTERRUPT_HANDLER(GPIO2_Combined_0_15_IRQHandler, GPIO2, 2, 0);
GPIO_INTERRUPT_HANDLER(GPIO2_Combined_16_31_IRQHandler, GPIO2, 2, 16);
#endif
#if defined(GPIO3)
GPIO_INTERRUPT_HANDLER(GPIO3_Combined_0_15_IRQHandler, GPIO3, 3, 0);
GPIO_INTERRUPT_HANDLER(GPIO3_Combined_16_31_IRQHandler, GPIO3, 3, 16);
#endif
#if defined(GPIO4)
GPIO_INTERRUPT_HANDLER(GPIO4_Combined_0_15_IRQHandler, GPIO4, 4, 0);
GPIO_INTERRUPT_HANDLER(GPIO4_Combined_16_31_IRQHandler, GPIO4, 4, 16);
#endif
#if defined(GPIO5)
GPIO_INTERRUPT_HANDLER(GPIO5_Combined_0_15_IRQHandler, GPIO5, 5, 0);
GPIO_INTERRUPT_HANDLER(GPIO5_Combined_16_31_IRQHandler, GPIO5, 5, 16);
#endif
#if defined(GPIO6)
GPIO_INTERRUPT_HANDLER(GPIO6_Combined_0_15_IRQHandler, GPIO6, 6, 0);
GPIO_INTERRUPT_HANDLER(GPIO6_Combined_16_31_IRQHandler, GPIO6, 6, 16);
#endif

3
ports/mimxrt10xx/common-hal/microcontroller/Pin.h
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@ -45,9 +45,6 @@ extern const mcu_pin_obj_t *mimxrt10xx_reset_forbidden_pins[];
// the port-default reset behavior.
extern bool mimxrt10xx_board_reset_pin_number(const mcu_pin_obj_t *pin);
typedef void (gpio_change_interrupt_t)(void *data);
void disable_pin_change_interrupt(const mcu_pin_obj_t *pin);
void enable_pin_change_interrupt(const mcu_pin_obj_t *pin, gpio_change_interrupt_t func, void *data);
void pin_gc_collect(void);
#endif // MICROPY_INCLUDED_MIMXRT10XX_COMMON_HAL_MICROCONTROLLER_PIN_H

2
ports/mimxrt10xx/common-hal/rotaryio/IncrementalEncoder.c
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@ -33,7 +33,7 @@
#include "py/runtime.h"
#include "fsl_gpio.h"
#include "sdk/drivers/igpio/fsl_gpio.h"
static void encoder_change(void *self_in) {
rotaryio_incrementalencoder_obj_t *self = self_in;

94
ports/mimxrt10xx/peripherals/mimxrt10xx/pins.c Normal file
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@ -0,0 +1,94 @@
#include "peripherals/mimxrt10xx/pins.h"
/* Array of GPIO peripheral base address. */
static GPIO_Type *const s_gpioBases[] = GPIO_BASE_PTRS;
static uint32_t GPIO_GetInstance(GPIO_Type *base) {
uint32_t instance;
/* Find the instance index from base address mappings. */
for (instance = 0U; instance < ARRAY_SIZE(s_gpioBases); instance++)
{
if (s_gpioBases[instance] == base) {
break;
}
}
assert(instance < ARRAY_SIZE(s_gpioBases));
return instance;
}
/* to find IRQ based on GPIO */
static const IRQn_Type low_irqs[] = GPIO_COMBINED_LOW_IRQS;
static const IRQn_Type high_irqs[] = GPIO_COMBINED_HIGH_IRQS;
volatile pin_change_interrupt_data pcid[MP_ARRAY_SIZE(s_gpioBases)][32];
void enable_pin_change_interrupt(const mcu_pin_obj_t *pin, gpio_change_interrupt_t func, void *data) {
int instance = GPIO_GetInstance(pin->gpio);
volatile pin_change_interrupt_data *pci = &pcid[instance][pin->number];
common_hal_mcu_disable_interrupts();
pci->data = data;
pci->func = func;
IRQn_Type irq = pin->number < 16 ? low_irqs[instance] : high_irqs[instance];
if (irq != NotAvail_IRQn) {
EnableIRQ(irq);
}
pin->gpio->IMR |= (1 << pin->number);
common_hal_mcu_enable_interrupts();
}
void disable_pin_change_interrupt(const mcu_pin_obj_t *pin) {
volatile pin_change_interrupt_data *pci = &pcid[GPIO_GetInstance(pin->gpio)][pin->number];
common_hal_mcu_disable_interrupts();
pin->gpio->IMR &= ~(1 << pin->number);
pci->data = NULL;
pci->func = NULL;
pin->gpio->ISR = (1 << pin->number); // acknowledge any pending interrupt
common_hal_mcu_enable_interrupts();
}
static void pin_change_interrupt_common(uint32_t isr, volatile pin_change_interrupt_data *pcr) {
for (uint32_t i = 0; i < 32; i++) {
if (isr & (1 << i)) {
pin_change_interrupt_data cb = pcr[i];
if (cb.func) {
cb.func(cb.data);
}
}
}
}
#define GPIO_INTERRUPT_HANDLER(name, ptr, instance, offset) \
void name(void); \
__attribute__((used)) void name(void) { \
uint32_t isr = ptr->ISR; \
ptr->ISR = isr; \
pin_change_interrupt_common(isr, pcid[instance]); \
}
#if defined(GPIO1)
GPIO_INTERRUPT_HANDLER(GPIO1_Combined_0_15_IRQHandler, GPIO1, 1, 0);
GPIO_INTERRUPT_HANDLER(GPIO1_Combined_16_31_IRQHandler, GPIO1, 1, 16);
#endif
#if defined(GPIO2)
GPIO_INTERRUPT_HANDLER(GPIO2_Combined_0_15_IRQHandler, GPIO2, 2, 0);
GPIO_INTERRUPT_HANDLER(GPIO2_Combined_16_31_IRQHandler, GPIO2, 2, 16);
#endif
#if defined(GPIO3)
GPIO_INTERRUPT_HANDLER(GPIO3_Combined_0_15_IRQHandler, GPIO3, 3, 0);
GPIO_INTERRUPT_HANDLER(GPIO3_Combined_16_31_IRQHandler, GPIO3, 3, 16);
#endif
#if defined(GPIO4)
GPIO_INTERRUPT_HANDLER(GPIO4_Combined_0_15_IRQHandler, GPIO4, 4, 0);
GPIO_INTERRUPT_HANDLER(GPIO4_Combined_16_31_IRQHandler, GPIO4, 4, 16);
#endif
#if defined(GPIO5)
GPIO_INTERRUPT_HANDLER(GPIO5_Combined_0_15_IRQHandler, GPIO5, 5, 0);
GPIO_INTERRUPT_HANDLER(GPIO5_Combined_16_31_IRQHandler, GPIO5, 5, 16);
#endif
#if defined(GPIO6)
GPIO_INTERRUPT_HANDLER(GPIO6_Combined_0_15_IRQHandler, GPIO6, 6, 0);
GPIO_INTERRUPT_HANDLER(GPIO6_Combined_16_31_IRQHandler, GPIO6, 6, 16);
#endif

10
ports/mimxrt10xx/peripherals/mimxrt10xx/pins.h
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@ -72,6 +72,16 @@ typedef struct {
.pad_reset = p_pad_reset, \
}
typedef void (gpio_change_interrupt_t)(void *data);
typedef struct {
gpio_change_interrupt_t *func;
void *data;
} pin_change_interrupt_data;
extern volatile pin_change_interrupt_data pcid[MP_ARRAY_SIZE((GPIO_Type *const[])GPIO_BASE_PTRS)][32];
void disable_pin_change_interrupt(const mcu_pin_obj_t *pin);
void enable_pin_change_interrupt(const mcu_pin_obj_t *pin, gpio_change_interrupt_t func, void *data);
#ifdef MIMXRT1011_SERIES
#include "MIMXRT1011/pins.h"
#elif defined(MIMXRT1021_SERIES)