diff --git a/bsp/nrf5x/libraries/drivers/drv_gpio.c b/bsp/nrf5x/libraries/drivers/drv_gpio.c new file mode 100644 index 0000000000..f320fb81f2 --- /dev/null +++ b/bsp/nrf5x/libraries/drivers/drv_gpio.c @@ -0,0 +1,375 @@ +/* + * Copyright (c) 2006-2018, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2020-06-16 guohp1128 first version + */ + +#include "drv_gpio.h" + +#ifdef RT_USING_PIN + +static const struct pin_index pins[] = +{ + __NRF5X_PIN(0 , 0, 0 ), + __NRF5X_PIN(1 , 0, 1 ), + __NRF5X_PIN(2 , 0, 2 ), + __NRF5X_PIN(3 , 0, 3 ), + __NRF5X_PIN(4 , 0, 4 ), + __NRF5X_PIN(5 , 0, 5 ), + __NRF5X_PIN(6 , 0, 6 ), + __NRF5X_PIN(7 , 0, 7 ), + __NRF5X_PIN(8 , 0, 8 ), + __NRF5X_PIN(9 , 0, 9 ), + __NRF5X_PIN(10, 0, 10), + __NRF5X_PIN(11, 0, 11), + __NRF5X_PIN(12, 0, 12), + __NRF5X_PIN(13, 0, 13), + __NRF5X_PIN(14, 0, 14), + __NRF5X_PIN(15, 0, 15), + __NRF5X_PIN(16, 0, 16), + __NRF5X_PIN(17, 0, 17), + __NRF5X_PIN(18, 0, 18), + __NRF5X_PIN(19, 0, 19), + __NRF5X_PIN(20, 0, 20), + __NRF5X_PIN(21, 0, 21), + __NRF5X_PIN(22, 0, 22), + __NRF5X_PIN(23, 0, 23), + __NRF5X_PIN(24, 0, 24), + __NRF5X_PIN(25, 0, 25), + __NRF5X_PIN(26, 0, 26), + __NRF5X_PIN(27, 0, 27), + __NRF5X_PIN(28, 0, 28), + __NRF5X_PIN(29, 0, 29), + __NRF5X_PIN(30, 0, 30), + __NRF5X_PIN(31, 0, 31), + __NRF5X_PIN(32, 1, 0 ), + __NRF5X_PIN(33, 1, 1 ), + __NRF5X_PIN(34, 1, 2 ), + __NRF5X_PIN(35, 1, 3 ), + __NRF5X_PIN(36, 1, 4 ), + __NRF5X_PIN(37, 1, 5 ), + __NRF5X_PIN(38, 1, 6 ), + __NRF5X_PIN(39, 1, 7 ), + __NRF5X_PIN(40, 1, 8 ), + __NRF5X_PIN(41, 1, 9 ), + __NRF5X_PIN(42, 1, 10), + __NRF5X_PIN(43, 1, 11), + __NRF5X_PIN(44, 1, 12), + __NRF5X_PIN(45, 1, 13), + __NRF5X_PIN(46, 1, 14), + __NRF5X_PIN(47, 1, 15), +}; + +/* EVENTS_IN[n](n=0..7) and EVENTS_PORT */ +static struct rt_pin_irq_hdr pin_irq_hdr_tab[] = +{ + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, +}; + +#define ITEM_NUM(items) sizeof(items) / sizeof(items[0]) + +/* pin: the number of pins */ +static const struct pin_index *get_pin(uint8_t pin) +{ + const struct pin_index *index; + + if (pin < ITEM_NUM(pins)) + { + index = &pins[pin]; + if (index->index == -1) + index = RT_NULL; + } + else + { + index = RT_NULL; + } + + return index; +}; + +static void nrf5x_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value) +{ + const struct pin_index *index; + + index = get_pin(pin); + if (index == RT_NULL) + { + return; + } + + nrf_gpio_pin_write(pin, value); +} + +static int nrf5x_pin_read(rt_device_t dev, rt_base_t pin) +{ + int value; + const struct pin_index *index; + + value = PIN_LOW; + + index = get_pin(pin); + if (index == RT_NULL) + { + return value; + } + + value = nrf_gpio_pin_read(pin); + + return value; +} + +static void nrf5x_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode) +{ + const struct pin_index *index; + + index = get_pin(pin); + if (index == RT_NULL) + { + return; + } + + if (mode == PIN_MODE_OUTPUT) + { + /* output setting */ + nrf_gpio_cfg_output(pin); + } + else if (mode == PIN_MODE_INPUT) + { + /* input setting: not pull. */ + nrf_gpio_cfg_input(pin, NRF_GPIO_PIN_NOPULL); + } + else if (mode == PIN_MODE_INPUT_PULLUP) + { + /* input setting: pull up. */ + nrf_gpio_cfg_input(pin, NRF_GPIO_PIN_PULLUP); + } + else if (mode == PIN_MODE_INPUT_PULLDOWN) + { + /* input setting: pull down. */ + nrf_gpio_cfg_input(pin, NRF_GPIO_PIN_PULLDOWN); + } + else if (mode == PIN_MODE_OUTPUT_OD) + { + /* output setting: od. */ + nrf_gpio_cfg( + pin, + NRF_GPIO_PIN_DIR_OUTPUT, + NRF_GPIO_PIN_INPUT_DISCONNECT, + NRF_GPIO_PIN_NOPULL, + NRF_GPIO_PIN_S0D1, + NRF_GPIO_PIN_NOSENSE); + } +} + +static void pin_irq_hdr(nrfx_gpiote_pin_t pin, nrf_gpiote_polarity_t action) +{ + int i; + int irq_quantity; + + irq_quantity = ITEM_NUM(pin_irq_hdr_tab); + for(i = 0; i < irq_quantity; i++) + { + if(pin_irq_hdr_tab[i].pin == pin) + { + pin_irq_hdr_tab[i].hdr(pin_irq_hdr_tab[i].args); + } + } +} + +/* args = true : hi_accuracy(IN_EVENT) + * args = false: lo_accuracy(PORT_EVENT) + */ +static rt_err_t nrf5x_pin_attach_irq(struct rt_device *device, rt_int32_t pin, + rt_uint32_t mode, void (*hdr)(void *args), void *args) +{ + const struct pin_index *index; + rt_int32_t irqindex = -1; + rt_base_t level; + nrfx_err_t err_code; + int i; + int irq_quantity; + + index = get_pin(pin); + if (index == RT_NULL) + { + return RT_ENOSYS; + } + + irq_quantity = ITEM_NUM(pin_irq_hdr_tab); + for(i = 0; i < irq_quantity; i++) + { + if(pin_irq_hdr_tab[i].pin != -1) + { + irqindex = -1; + continue; + } + else + { + irqindex = i; + break; + } + } + if(irqindex == -1) + { + return RT_ENOMEM; + } + + level = rt_hw_interrupt_disable(); + pin_irq_hdr_tab[irqindex].pin = pin; + pin_irq_hdr_tab[irqindex].hdr = hdr; + pin_irq_hdr_tab[irqindex].mode = mode; + pin_irq_hdr_tab[irqindex].args = args; + + if(mode == PIN_IRQ_MODE_RISING) + { + nrfx_gpiote_in_config_t inConfig = NRFX_GPIOTE_CONFIG_IN_SENSE_LOTOHI(args); + inConfig.pull = NRF_GPIO_PIN_PULLDOWN; + err_code = nrfx_gpiote_in_init(pin, &inConfig, pin_irq_hdr); + } + + else if(mode == PIN_IRQ_MODE_FALLING) + { + nrfx_gpiote_in_config_t inConfig = NRFX_GPIOTE_CONFIG_IN_SENSE_HITOLO(args); + inConfig.pull = NRF_GPIO_PIN_PULLUP; + err_code = nrfx_gpiote_in_init(pin, &inConfig, pin_irq_hdr); + } + + else if(mode == PIN_IRQ_MODE_RISING_FALLING) + { + nrfx_gpiote_in_config_t inConfig = NRFX_GPIOTE_CONFIG_IN_SENSE_TOGGLE(args); + inConfig.pull = NRF_GPIO_PIN_PULLUP; + err_code = nrfx_gpiote_in_init(pin, &inConfig, pin_irq_hdr); + } + + rt_hw_interrupt_enable(level); + + switch(err_code) + { + case NRFX_ERROR_BUSY: + return RT_EBUSY; + case NRFX_SUCCESS: + return RT_EOK; + case NRFX_ERROR_NO_MEM: + return RT_ENOMEM; + default: + return RT_ERROR; + } +} + +static rt_err_t nrf5x_pin_dettach_irq(struct rt_device *device, rt_int32_t pin) +{ + const struct pin_index *index; + rt_base_t level; + int i; + int irq_quantity; + + index = get_pin(pin); + if (index == RT_NULL) + { + return RT_ENOSYS; + } + + irq_quantity = ITEM_NUM(pin_irq_hdr_tab); + for(i = 0; i < irq_quantity; i++) + { + if(pin_irq_hdr_tab[i].pin == pin) + { + level = rt_hw_interrupt_disable(); + pin_irq_hdr_tab[i].pin = -1; + pin_irq_hdr_tab[i].hdr = RT_NULL; + pin_irq_hdr_tab[i].mode = 0; + pin_irq_hdr_tab[i].args = RT_NULL; + nrfx_gpiote_in_uninit(pin); + rt_hw_interrupt_enable(level); + break; + } + } + if(i >= irq_quantity) + { + return RT_ENOSYS; + } + return RT_EOK; +} + +static rt_err_t nrf5x_pin_irq_enable(struct rt_device *device, rt_base_t pin, + rt_uint32_t enabled) +{ + const struct pin_index *index; + rt_base_t level; + int i; + int irq_quantity; + + index = get_pin(pin); + if (index == RT_NULL) + { + return RT_ENOSYS; + } + + irq_quantity = ITEM_NUM(pin_irq_hdr_tab); + for(i = 0; i < irq_quantity; i++) + { + if(pin_irq_hdr_tab[i].pin == pin) + { + level = rt_hw_interrupt_disable(); + if(enabled == PIN_IRQ_ENABLE) + { + nrfx_gpiote_in_event_enable(pin,enabled); + } + else if(enabled == PIN_IRQ_DISABLE) + { + nrfx_gpiote_in_event_disable(pin); + } + rt_hw_interrupt_enable(level); + break; + } + } + + if(i >= irq_quantity) + { + return RT_ENOSYS; + } + return RT_EOK; +} + +const static struct rt_pin_ops _nrf5x_pin_ops = +{ + nrf5x_pin_mode, + nrf5x_pin_write, + nrf5x_pin_read, + nrf5x_pin_attach_irq, + nrf5x_pin_dettach_irq, + nrf5x_pin_irq_enable, +}; + +int rt_hw_pin_init(void) +{ + nrfx_err_t err_code; + + err_code = (nrfx_err_t)rt_device_pin_register("pin", &_nrf5x_pin_ops, RT_NULL); + err_code = nrfx_gpiote_init(NRFX_GPIOTE_CONFIG_IRQ_PRIORITY); + + switch(err_code) + { + case NRFX_ERROR_INVALID_STATE: + return RT_EINVAL; + case NRFX_SUCCESS: + return RT_EOK; + default: + return RT_ERROR;; + } + +} + +#endif /* RT_USING_PIN */ diff --git a/bsp/nrf5x/libraries/drivers/drv_gpio.h b/bsp/nrf5x/libraries/drivers/drv_gpio.h new file mode 100644 index 0000000000..28eca1a810 --- /dev/null +++ b/bsp/nrf5x/libraries/drivers/drv_gpio.h @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2006-2018, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2020-06-16 guohp1128 first version + */ + +#ifndef __DRV_GPIO_H__ +#define __DRV_GPIO_H__ + +#include +#include +#include +#include +#include + +#define __NRF5X_PORT(port) NRF_P##port##_BASE + +#define GET_PIN(PORTx,PIN) (rt_base_t)((32 * ( ((rt_base_t)__NRF5X_PORT(PORTx) - (rt_base_t)NRF_P0_BASE)/(0x0300UL) )) + PIN) + +#define __NRF5X_PIN(index, gpio, gpio_index) \ + { \ + index, NRF_P##gpio, gpio_index \ + } + +#define __NRF5X_PIN_RESERVE \ + { \ + -1, 0, 0 \ + } + +/* nrf5x GPIO driver */ +struct pin_index +{ + int index; + NRF_GPIO_Type *gpio;//NRF_P0 or NRF_P1 + uint32_t pin; +}; + +static void nrf5x_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value); +static int nrf5x_pin_read(rt_device_t dev, rt_base_t pin); +static void nrf5x_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode); +static rt_err_t nrf5x_pin_attach_irq(struct rt_device *device, rt_int32_t pin, + rt_uint32_t mode, void (*hdr)(void *args), void *args); +static rt_err_t nrf5x_pin_dettach_irq(struct rt_device *device, rt_int32_t pin); +static rt_err_t nrf5x_pin_irq_enable(struct rt_device *device, rt_base_t pin, + rt_uint32_t enabled); +int rt_hw_pin_init(void); + +#endif /* __DRV_GPIO_H__ */ + diff --git a/bsp/nrf5x/nrf52840/applications/application.c b/bsp/nrf5x/nrf52840/applications/application.c index ce53a6dce9..e11be12225 100644 --- a/bsp/nrf5x/nrf52840/applications/application.c +++ b/bsp/nrf5x/nrf52840/applications/application.c @@ -25,25 +25,23 @@ #include #endif -#include +#include #define DK_BOARD_LED_1 13 int main(void) { - int count = 1; - nrf_gpio_cfg_output(DK_BOARD_LED_1); - + int count = 1; + rt_pin_mode(DK_BOARD_LED_1, PIN_MODE_OUTPUT); + while (count++) - { - nrf_gpio_pin_set(DK_BOARD_LED_1); + { + rt_pin_write(DK_BOARD_LED_1, PIN_HIGH); rt_thread_mdelay(500); - nrf_gpio_pin_clear(DK_BOARD_LED_1); - rt_thread_mdelay(500); - + rt_pin_write(DK_BOARD_LED_1, PIN_LOW); + rt_thread_mdelay(500); } return RT_EOK; } - /*@}*/ diff --git a/bsp/nrf5x/nrf52840/board/board.c b/bsp/nrf5x/nrf52840/board/board.c index d62fbee9f3..18723be78d 100644 --- a/bsp/nrf5x/nrf52840/board/board.c +++ b/bsp/nrf5x/nrf52840/board/board.c @@ -3,6 +3,7 @@ #include #include "board.h" +#include "drv_gpio.h" #include "drv_uart.h" void SysTick_Configuration(void) @@ -47,6 +48,11 @@ void rt_hw_board_init(void) rt_system_heap_init((void *)HEAP_BEGIN, (void *)HEAP_END); #endif +/* Pin driver initialization is open by default */ +#ifdef RT_USING_PIN + rt_hw_pin_init(); +#endif + #ifdef RT_USING_SERIAL rt_hw_uart_init(); #endif diff --git a/bsp/nrf5x/nrf52840/board/board.h b/bsp/nrf5x/nrf52840/board/board.h index 669f903e55..f808960780 100644 --- a/bsp/nrf5x/nrf52840/board/board.h +++ b/bsp/nrf5x/nrf52840/board/board.h @@ -2,7 +2,7 @@ #define _BOARD_H_ #include - +#include #include "nrf.h" #define MCU_FLASH_SIZE MCU_FLASH_SIZE_KB*1024 diff --git a/bsp/nrf5x/nrf52840/board/sdk_config.h b/bsp/nrf5x/nrf52840/board/sdk_config.h index 3ad63df3ea..619e06d23f 100644 --- a/bsp/nrf5x/nrf52840/board/sdk_config.h +++ b/bsp/nrf5x/nrf52840/board/sdk_config.h @@ -1898,7 +1898,7 @@ // NRFX_GPIOTE_ENABLED - nrfx_gpiote - GPIOTE peripheral driver //========================================================== #ifndef NRFX_GPIOTE_ENABLED -#define NRFX_GPIOTE_ENABLED 0 +#define NRFX_GPIOTE_ENABLED 1 #endif // NRFX_GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS - Number of lower power input pins #ifndef NRFX_GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS