mbed official / mbed-src

mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_RENESAS/TARGET_RZ_A1H/gpio_irq_api.c@427:8eeb5157dee4, 2014-12-04 (annotated)

Committer:
mbed_official
Date:
Thu Dec 04 07:30:08 2014 +0000
Revision:
427:8eeb5157dee4
Parent:
409:a95c696104d3
Child:
430:d406b7919023
Synchronized with git revision e815194b578628edb5746650abfdde926be5e3fe



Full URL: https://github.com/mbedmicro/mbed/commit/e815194b578628edb5746650abfdde926be5e3fe/



Targets: RZ_A1H - Fix bugs that I2C freq become fixed 100kHz and a static value will be indefiniteness.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 409:a95c696104d3 1 /* mbed Microcontroller Library
mbed_official 409:a95c696104d3 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 409:a95c696104d3 3 *
mbed_official 409:a95c696104d3 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 409:a95c696104d3 5 * you may not use this file except in compliance with the License.
mbed_official 409:a95c696104d3 6 * You may obtain a copy of the License at
mbed_official 409:a95c696104d3 7 *
mbed_official 409:a95c696104d3 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 409:a95c696104d3 9 *
mbed_official 409:a95c696104d3 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 409:a95c696104d3 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 409:a95c696104d3 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 409:a95c696104d3 13 * See the License for the specific language governing permissions and
mbed_official 409:a95c696104d3 14 * limitations under the License.
mbed_official 409:a95c696104d3 15 */
mbed_official 409:a95c696104d3 16 #include <stddef.h>
mbed_official 409:a95c696104d3 17
mbed_official 409:a95c696104d3 18 #include "gpio_irq_api.h"
mbed_official 409:a95c696104d3 19 #include "intc_iodefine.h"
mbed_official 409:a95c696104d3 20 #include "pinmap.h"
mbed_official 409:a95c696104d3 21 #include "cmsis.h"
mbed_official 409:a95c696104d3 22
mbed_official 409:a95c696104d3 23 #define CHANNEL_NUM 8
mbed_official 409:a95c696104d3 24
mbed_official 409:a95c696104d3 25 static uint32_t channel_ids[CHANNEL_NUM] = {0};
mbed_official 409:a95c696104d3 26 static gpio_irq_handler irq_handler;
mbed_official 409:a95c696104d3 27 static const int nIRQn_h = 32;
mbed_official 409:a95c696104d3 28 extern PinName gpio_multi_guard;
mbed_official 409:a95c696104d3 29
mbed_official 409:a95c696104d3 30 enum {
mbed_official 409:a95c696104d3 31 IRQ0,IRQ1,
mbed_official 409:a95c696104d3 32 IRQ2,IRQ3,
mbed_official 409:a95c696104d3 33 IRQ4,IRQ5,
mbed_official 409:a95c696104d3 34 IRQ6,IRQ7,
mbed_official 409:a95c696104d3 35
mbed_official 409:a95c696104d3 36 } IRQNo;
mbed_official 409:a95c696104d3 37
mbed_official 409:a95c696104d3 38 static const PinMap PinMap_IRQ[] = {
mbed_official 409:a95c696104d3 39 {P1_0, IRQ0, 4}, {P1_1, IRQ1, 4}, {P1_2, IRQ2, 4},
mbed_official 409:a95c696104d3 40 {P1_3, IRQ3, 4}, {P1_5, IRQ5, 4}, {P1_7, IRQ7, 4},
mbed_official 409:a95c696104d3 41 {P1_8, IRQ2, 3}, {P1_9, IRQ3, 3}, {P1_10, IRQ4, 3},
mbed_official 409:a95c696104d3 42 {P1_11, IRQ5, 3}, // 9
mbed_official 409:a95c696104d3 43 {P2_0, IRQ5, 6}, {P2_13, IRQ7, 8}, {P2_14, IRQ0, 8},
mbed_official 409:a95c696104d3 44 {P2_15, IRQ1, 8}, // 13
mbed_official 409:a95c696104d3 45 {P3_0, IRQ2, 3}, {P3_3, IRQ4, 3}, // 15
mbed_official 409:a95c696104d3 46 {P4_8, IRQ0, 8}, {P4_9, IRQ1, 8}, {P4_10, IRQ2, 8},
mbed_official 409:a95c696104d3 47 {P4_11, IRQ3, 8}, {P4_12, IRQ4, 8}, {P4_13, IRQ5, 8},
mbed_official 409:a95c696104d3 48 {P4_14, IRQ6, 8}, {P4_15, IRQ7, 8}, // 23
mbed_official 409:a95c696104d3 49 {P5_6, IRQ6, 6}, {P5_8, IRQ0, 2}, {P5_9, IRQ2, 4}, // 26
mbed_official 409:a95c696104d3 50 {P6_0, IRQ5, 6}, {P6_1, IRQ4, 4}, {P6_2, IRQ7, 4},
mbed_official 409:a95c696104d3 51 {P6_3, IRQ2, 4}, {P6_4, IRQ3, 4}, {P6_8, IRQ0, 8},
mbed_official 409:a95c696104d3 52 {P6_9, IRQ1, 8}, {P6_10, IRQ2, 8}, {P6_11, IRQ3, 8},
mbed_official 409:a95c696104d3 53 {P6_12, IRQ4, 8}, {P6_13, IRQ5, 8}, {P6_14, IRQ6, 8},
mbed_official 409:a95c696104d3 54 {P6_15, IRQ7, 8}, // 39
mbed_official 409:a95c696104d3 55 {P7_8, IRQ1, 8}, {P7_9, IRQ0, 8}, {P7_10, IRQ2, 8},
mbed_official 409:a95c696104d3 56 {P7_11, IRQ3, 8}, {P7_12, IRQ4, 8}, {P7_13, IRQ5, 8},
mbed_official 409:a95c696104d3 57 {P7_14, IRQ6, 8}, // 46
mbed_official 409:a95c696104d3 58 {P8_2, IRQ0, 5}, {P8_3, IRQ1, 6}, {P8_7, IRQ5, 4},
mbed_official 409:a95c696104d3 59 {P9_1, IRQ0, 4}, // 50
mbed_official 409:a95c696104d3 60 {P11_12,IRQ3, 3}, {P11_15,IRQ1, 3}, // 52
mbed_official 409:a95c696104d3 61
mbed_official 409:a95c696104d3 62 {NC, NC, 0}
mbed_official 409:a95c696104d3 63 };
mbed_official 409:a95c696104d3 64
mbed_official 409:a95c696104d3 65 static gpio_irq_event irq_event;
mbed_official 409:a95c696104d3 66
mbed_official 409:a95c696104d3 67 static void handle_interrupt_in(void) {
mbed_official 409:a95c696104d3 68 int i;
mbed_official 409:a95c696104d3 69 uint16_t irqs;
mbed_official 409:a95c696104d3 70
mbed_official 409:a95c696104d3 71 irqs = INTCIRQRR;
mbed_official 409:a95c696104d3 72 for(i = 0; i< 8; i++) {
mbed_official 409:a95c696104d3 73 if (channel_ids[i] && (irqs & (1 << i))) {
mbed_official 409:a95c696104d3 74 irq_handler(channel_ids[i], irq_event);
mbed_official 409:a95c696104d3 75 INTCIRQRR &= ~(1 << i);
mbed_official 427:8eeb5157dee4 76 GIC_EndInterrupt((IRQn_Type)(nIRQn_h + i));
mbed_official 409:a95c696104d3 77 }
mbed_official 409:a95c696104d3 78 }
mbed_official 409:a95c696104d3 79 }
mbed_official 409:a95c696104d3 80
mbed_official 409:a95c696104d3 81 int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32_t id) {
mbed_official 409:a95c696104d3 82 int shift;
mbed_official 409:a95c696104d3 83 if (pin == NC) return -1;
mbed_official 409:a95c696104d3 84
mbed_official 409:a95c696104d3 85 obj->ch = pinmap_peripheral(pin, PinMap_IRQ);
mbed_official 409:a95c696104d3 86 obj->pin = (int)pin ;
mbed_official 409:a95c696104d3 87 obj->port = (int)id ;
mbed_official 409:a95c696104d3 88
mbed_official 409:a95c696104d3 89 shift = obj->ch*2;
mbed_official 409:a95c696104d3 90 channel_ids[obj->ch] = id;
mbed_official 409:a95c696104d3 91 irq_handler = handler;
mbed_official 409:a95c696104d3 92
mbed_official 409:a95c696104d3 93 pinmap_pinout(pin, PinMap_IRQ);
mbed_official 409:a95c696104d3 94 gpio_multi_guard = pin; /* Set multi guard */
mbed_official 409:a95c696104d3 95
mbed_official 409:a95c696104d3 96 // INTC settings
mbed_official 409:a95c696104d3 97 InterruptHandlerRegister((IRQn_Type)(nIRQn_h+obj->ch), (void (*)(uint32_t))handle_interrupt_in);
mbed_official 409:a95c696104d3 98 INTCICR1 &= ~(0x3 << shift);
mbed_official 409:a95c696104d3 99 INTCICR1 |= (0x3 << shift);
mbed_official 409:a95c696104d3 100 irq_event = IRQ_RISE;
mbed_official 409:a95c696104d3 101 GIC_SetPriority((IRQn_Type)(nIRQn_h+obj->ch), 5);
mbed_official 409:a95c696104d3 102 GIC_EnableIRQ((IRQn_Type)(nIRQn_h+obj->ch));
mbed_official 409:a95c696104d3 103 __enable_irq();
mbed_official 409:a95c696104d3 104
mbed_official 409:a95c696104d3 105 return 0;
mbed_official 409:a95c696104d3 106 }
mbed_official 409:a95c696104d3 107
mbed_official 409:a95c696104d3 108 void gpio_irq_free(gpio_irq_t *obj) {
mbed_official 409:a95c696104d3 109 channel_ids[obj->ch] = 0;
mbed_official 409:a95c696104d3 110 }
mbed_official 409:a95c696104d3 111
mbed_official 409:a95c696104d3 112 void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable) {
mbed_official 409:a95c696104d3 113 int shift = obj->ch*2;
mbed_official 409:a95c696104d3 114 uint16_t val = event == IRQ_RISE ? 2 :
mbed_official 409:a95c696104d3 115 event == IRQ_FALL ? 1 : 0;
mbed_official 409:a95c696104d3 116 uint16_t work_icr_val;
mbed_official 409:a95c696104d3 117 uint16_t work_irqrr_val;
mbed_official 409:a95c696104d3 118
mbed_official 409:a95c696104d3 119 /* check edge interrupt setting */
mbed_official 409:a95c696104d3 120 work_icr_val = INTCICR1;
mbed_official 409:a95c696104d3 121 if (enable == 1) {
mbed_official 409:a95c696104d3 122 /* Set interrupt serect */
mbed_official 409:a95c696104d3 123 work_icr_val |= (val << shift);
mbed_official 409:a95c696104d3 124 } else {
mbed_official 409:a95c696104d3 125 /* Clear interrupt serect */
mbed_official 409:a95c696104d3 126 work_icr_val &= ~(val << shift);
mbed_official 409:a95c696104d3 127 }
mbed_official 409:a95c696104d3 128
mbed_official 409:a95c696104d3 129 if ((work_icr_val & (3 << shift)) == 0) {
mbed_official 409:a95c696104d3 130 /* No edge interrupt setting */
mbed_official 409:a95c696104d3 131 GIC_DisableIRQ((IRQn_Type)(nIRQn_h+obj->ch));
mbed_official 409:a95c696104d3 132 /* Clear Interrupt flags */
mbed_official 409:a95c696104d3 133 work_irqrr_val = INTCIRQRR;
mbed_official 409:a95c696104d3 134 INTCIRQRR = (work_irqrr_val & ~(1 << obj->ch));
mbed_official 409:a95c696104d3 135 } else {
mbed_official 409:a95c696104d3 136 /* Edge interrupt setting */
mbed_official 409:a95c696104d3 137 if ((work_icr_val & (3 << shift)) == 2) {
mbed_official 409:a95c696104d3 138 /* Setting of rising edge */
mbed_official 409:a95c696104d3 139 irq_event = IRQ_RISE;
mbed_official 409:a95c696104d3 140 } else {
mbed_official 409:a95c696104d3 141 /* Setting of falling edge of both edge */
mbed_official 409:a95c696104d3 142 irq_event = IRQ_FALL;
mbed_official 409:a95c696104d3 143 }
mbed_official 409:a95c696104d3 144 GIC_EnableIRQ((IRQn_Type)(nIRQn_h+obj->ch));
mbed_official 409:a95c696104d3 145 }
mbed_official 409:a95c696104d3 146 INTCICR1 = work_icr_val;
mbed_official 409:a95c696104d3 147 }
mbed_official 409:a95c696104d3 148
mbed_official 409:a95c696104d3 149 void gpio_irq_enable(gpio_irq_t *obj) {
mbed_official 409:a95c696104d3 150 GIC_EnableIRQ((IRQn_Type)(nIRQn_h + obj->ch));
mbed_official 409:a95c696104d3 151 }
mbed_official 409:a95c696104d3 152
mbed_official 409:a95c696104d3 153 void gpio_irq_disable(gpio_irq_t *obj) {
mbed_official 409:a95c696104d3 154 GIC_DisableIRQ((IRQn_Type)(nIRQn_h + obj->ch));
mbed_official 409:a95c696104d3 155 }
mbed_official 409:a95c696104d3 156