17 #define NRF_GPIO_INDEX(pin) (pin)  argument
18 #define NRF_GPIO_PORT(pin)  (NRF_P0)  argument
19 #define NRF_GPIO_MASK(pin)  (1 << NRF_GPIO_INDEX(pin))  argument
38     rt_int16_t        pin;  member
45 static void nrf_pin_mode(struct rt_device *device, rt_base_t pin, rt_base_t mode)  in nrf_pin_mode()  argument
50     int index = NRF_GPIO_INDEX(pin);  in nrf_pin_mode()
73     port = NRF_GPIO_PORT(pin);  in nrf_pin_mode()
79         port->DIRSET = NRF_GPIO_MASK(pin);  in nrf_pin_mode()
80         port->OUTCLR = NRF_GPIO_MASK(pin);  in nrf_pin_mode()
85         port->DIRCLR = NRF_GPIO_MASK(pin);  in nrf_pin_mode()
89 static void nrf_pin_write(struct rt_device *device, rt_base_t pin, rt_base_t value)  in nrf_pin_write()  argument
93     port = NRF_GPIO_PORT(pin);  in nrf_pin_write()
96         port->OUTSET = NRF_GPIO_MASK(pin);  in nrf_pin_write()
100         port->OUTCLR = NRF_GPIO_MASK(pin);  in nrf_pin_write()
104 static int nrf_pin_read(struct rt_device *device, rt_base_t pin)  in nrf_pin_read()  argument
107     port = NRF_GPIO_PORT(pin);  in nrf_pin_read()
109     return (port->DIR & NRF_GPIO_MASK(pin)) ?  in nrf_pin_read()
110            (port->OUT >> NRF_GPIO_INDEX(pin)) & 1UL :  in nrf_pin_read()
111            (port->IN >> NRF_GPIO_INDEX(pin)) & 1UL;  in nrf_pin_read()
117  * Handles the gpio interrupt attached to a gpio pin.
146         gpio_port = NRF_GPIO_PORT(nrf_gpio_irqs[i].pin);  in nrf_gpio_irq_handler()
147         pin_index = NRF_GPIO_INDEX(nrf_gpio_irqs[i].pin);  in nrf_gpio_irq_handler()
160          * different than pin state).  in nrf_gpio_irq_handler()
162         pin_state = (gpio_state >> nrf_gpio_irqs[i].pin) & 0x01;  in nrf_gpio_irq_handler()
231  * Find out whether we have an GPIOTE pin event to use.
248  * Find the GPIOTE event which handles this pin.
250 static int nrf_gpio_find_pin(int pin)  in nrf_gpio_find_pin()  argument
257         if (nrf_gpio_irqs[i].func && nrf_gpio_irqs[i].pin == pin)  in nrf_gpio_find_pin()
263     pin = pin << GPIOTE_CONFIG_PSEL_Pos;  in nrf_gpio_find_pin()
268                 (NRF_GPIOTE->CONFIG[i] & NRF_GPIOTE_PIN_MASK) == pin)  in nrf_gpio_find_pin()
278 static rt_err_t nrf_pin_attach_irq(struct rt_device *device, rt_int32_t pin,  in nrf_pin_attach_irq()  argument
293     nrf_gpio_irqs[i].pin = pin;  in nrf_pin_attach_irq()
326     conf |= pin << GPIOTE_CONFIG_PSEL_Pos;  in nrf_pin_attach_irq()
337 static rt_err_t nrf_pin_detach_irq(struct rt_device *device, rt_int32_t pin)  in nrf_pin_detach_irq()  argument
343     i = nrf_gpio_find_pin(pin);  in nrf_pin_detach_irq()
348     /* disable pin irq */  in nrf_pin_detach_irq()
349     rt_pin_irq_enable(pin, 0);  in nrf_pin_detach_irq()
364 static rt_err_t nrf_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_uint32_t enabled)  in nrf_pin_irq_enable()  argument
372     i = nrf_gpio_find_pin(pin);  in nrf_pin_irq_enable()
379     nrf_gpio = NRF_GPIO_PORT(pin);  in nrf_pin_irq_enable()
380     pin_index = NRF_GPIO_INDEX(pin);  in nrf_pin_irq_enable()
386          * Always set initial SENSE to opposite of current pin state to avoid  in nrf_pin_irq_enable()
446     ret = rt_device_pin_register("pin", &nrf_pin_ops, RT_NULL);  in rt_hw_pin_init()