Diff: targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/gpio_irq_api.c

Revision:

267:8673334f2cbe

Parent:

266:69e8a32876bd

Child:

268:402bcc0c870b

--- a/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/gpio_irq_api.c	Thu Jul 24 12:00:06 2014 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,207 +0,0 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2006-2013 ARM Limited
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include <stddef.h>
-#include "cmsis.h"
-
-#include "gpio_irq_api.h"
-#include "gpio_api.h"
-#include "fsl_gpio_hal.h"
-#include "fsl_port_hal.h"
-#include "error.h"
-
-#define CHANNEL_NUM    160
-
-static uint32_t channel_ids[CHANNEL_NUM] = {0};
-static gpio_irq_handler irq_handler;
-
-#define IRQ_DISABLED        (0)
-#define IRQ_RAISING_EDGE    (9)
-#define IRQ_FALLING_EDGE    (10)
-#define IRQ_EITHER_EDGE     (11)
-
-static void handle_interrupt_in(PortName port, int ch_base) {
-    uint32_t i;
-
-    for (i = 0; i < 32; i++) {
-        if (port_hal_read_pin_interrupt_flag(port, i)) {
-            uint32_t id = channel_ids[ch_base + i];
-            if (id == 0) {
-                continue;
-            }
-
-            gpio_irq_event event = IRQ_NONE;
-            switch (BR_PORT_PCRn_IRQC(port, i)) {
-                case IRQ_RAISING_EDGE:
-                    event = IRQ_RISE;
-                    break;
-
-                case IRQ_FALLING_EDGE:
-                    event = IRQ_FALL;
-                    break;
-
-                case IRQ_EITHER_EDGE:
-                    event = (gpio_hal_read_pin_input(port, i)) ? (IRQ_RISE) : (IRQ_FALL);
-                    break;
-            }
-            if (event != IRQ_NONE) {
-                irq_handler(id, event);
-            }
-        }
-    }
-    port_hal_clear_port_interrupt_flag(port);
-}
-
-void gpio_irqA(void) {handle_interrupt_in(PortA, 0);}
-void gpio_irqB(void) {handle_interrupt_in(PortB, 32);}
-void gpio_irqC(void) {handle_interrupt_in(PortC, 64);}
-void gpio_irqD(void) {handle_interrupt_in(PortD, 96);}
-void gpio_irqE(void) {handle_interrupt_in(PortE, 128);}
-
-int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32_t id) {
-    if (pin == NC) {
-        return -1;
-   }
-
-    irq_handler = handler;
-    obj->port = pin >> GPIO_PORT_SHIFT;
-    obj->pin = pin & 0x7F;
-
-    uint32_t ch_base, vector;
-    IRQn_Type irq_n;
-    switch (obj->port) {
-        case PortA:
-            ch_base = 0;
-            irq_n = PORTA_IRQn;
-            vector = (uint32_t)gpio_irqA;
-            break;
-        case PortB:
-            ch_base = 32;
-            irq_n = PORTB_IRQn;
-            vector = (uint32_t)gpio_irqB;
-            break;
-        case PortC:
-            ch_base = 64;
-            irq_n = PORTC_IRQn;
-            vector = (uint32_t)gpio_irqC;
-            break;
-        case PortD:
-            ch_base = 96;
-            irq_n = PORTD_IRQn;
-            vector = (uint32_t)gpio_irqD;
-            break;
-        case PortE:
-            ch_base = 128;
-            irq_n = PORTE_IRQn;
-            vector = (uint32_t)gpio_irqE;
-            break;
-
-        default:
-            error("gpio_irq only supported on port A-E.");
-            break;
-    }
-    NVIC_SetVector(irq_n, vector);
-    NVIC_EnableIRQ(irq_n);
-
-    obj->ch = ch_base + obj->pin;
-    channel_ids[obj->ch] = id;
-
-    return 0;
-}
-
-void gpio_irq_free(gpio_irq_t *obj) {
-    channel_ids[obj->ch] = 0;
-}
-
-void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable) {
-    port_interrupt_config_t irq_settings = kPortIntDisabled;
-
-    switch (BR_PORT_PCRn_IRQC(obj->port, obj->pin)) {
-        case IRQ_DISABLED:
-            if (enable)
-                irq_settings = (event == IRQ_RISE) ? (kPortIntRisingEdge) : (kPortIntFallingEdge);
-            break;
-
-        case IRQ_RAISING_EDGE:
-            if (enable) {
-                irq_settings = (event == IRQ_RISE) ? (kPortIntRisingEdge) : (kPortIntEitherEdge);
-            } else {
-                if (event == IRQ_FALL)
-                    irq_settings = kPortIntRisingEdge;
-            }
-            break;
-
-        case IRQ_FALLING_EDGE:
-            if (enable) {
-                irq_settings = (event == IRQ_FALL) ? (kPortIntFallingEdge) : (kPortIntEitherEdge);
-            } else {
-                if (event == IRQ_RISE)
-                    irq_settings = kPortIntFallingEdge;
-            }
-            break;
-
-        case IRQ_EITHER_EDGE:
-            if (enable) {
-                irq_settings = kPortIntEitherEdge;
-            } else {
-                irq_settings = (event == IRQ_RISE) ? (kPortIntFallingEdge) : (kPortIntRisingEdge);
-            }
-            break;
-    }
-
-    port_hal_configure_pin_interrupt(obj->port, obj->pin, irq_settings);
-    port_hal_clear_pin_interrupt_flag(obj->port, obj->pin);
-}
-
-void gpio_irq_enable(gpio_irq_t *obj) {
-    switch (obj->port) {
-        case PortA:
-            NVIC_EnableIRQ(PORTA_IRQn);
-            break;
-        case PortB:
-            NVIC_EnableIRQ(PORTB_IRQn);
-            break;
-        case PortC:
-            NVIC_EnableIRQ(PORTC_IRQn);
-            break;
-        case PortD:
-            NVIC_EnableIRQ(PORTD_IRQn);
-            break;
-        case PortE:
-            NVIC_EnableIRQ(PORTE_IRQn);
-            break;
-    }
-}
-
-void gpio_irq_disable(gpio_irq_t *obj) {
-    switch (obj->port) {
-        case PortA:
-            NVIC_DisableIRQ(PORTA_IRQn);
-            break;
-        case PortB:
-            NVIC_DisableIRQ(PORTB_IRQn);
-            break;
-        case PortC:
-            NVIC_DisableIRQ(PORTC_IRQn);
-            break;
-        case PortD:
-            NVIC_DisableIRQ(PORTD_IRQn);
-            break;
-        case PortE:
-            NVIC_DisableIRQ(PORTE_IRQn);
-            break;
-    }
-}
-