Thomas Lyp / DevLibMemoryController

Initial commit

Dependencies:   FastPWM

mbed-dev-master/targets/TARGET_STM/gpio_object.h@0:bb348c97df44, 2020-09-16 (annotated)

Committer:
lypinator
Date:
Wed Sep 16 01:11:49 2020 +0000
Revision:
0:bb348c97df44
Added PWM

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lypinator 0:bb348c97df44 1 /* mbed Microcontroller Library
lypinator 0:bb348c97df44 2 *******************************************************************************
lypinator 0:bb348c97df44 3 * Copyright (c) 2016, STMicroelectronics
lypinator 0:bb348c97df44 4 * All rights reserved.
lypinator 0:bb348c97df44 5 *
lypinator 0:bb348c97df44 6 * Redistribution and use in source and binary forms, with or without
lypinator 0:bb348c97df44 7 * modification, are permitted provided that the following conditions are met:
lypinator 0:bb348c97df44 8 *
lypinator 0:bb348c97df44 9 * 1. Redistributions of source code must retain the above copyright notice,
lypinator 0:bb348c97df44 10 * this list of conditions and the following disclaimer.
lypinator 0:bb348c97df44 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
lypinator 0:bb348c97df44 12 * this list of conditions and the following disclaimer in the documentation
lypinator 0:bb348c97df44 13 * and/or other materials provided with the distribution.
lypinator 0:bb348c97df44 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
lypinator 0:bb348c97df44 15 * may be used to endorse or promote products derived from this software
lypinator 0:bb348c97df44 16 * without specific prior written permission.
lypinator 0:bb348c97df44 17 *
lypinator 0:bb348c97df44 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
lypinator 0:bb348c97df44 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
lypinator 0:bb348c97df44 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
lypinator 0:bb348c97df44 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
lypinator 0:bb348c97df44 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
lypinator 0:bb348c97df44 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
lypinator 0:bb348c97df44 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
lypinator 0:bb348c97df44 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
lypinator 0:bb348c97df44 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
lypinator 0:bb348c97df44 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
lypinator 0:bb348c97df44 28 *******************************************************************************
lypinator 0:bb348c97df44 29 */
lypinator 0:bb348c97df44 30 #ifndef MBED_GPIO_OBJECT_H
lypinator 0:bb348c97df44 31 #define MBED_GPIO_OBJECT_H
lypinator 0:bb348c97df44 32
lypinator 0:bb348c97df44 33 #include "mbed_assert.h"
lypinator 0:bb348c97df44 34 #include "cmsis.h"
lypinator 0:bb348c97df44 35 #include "PortNames.h"
lypinator 0:bb348c97df44 36 #include "PeripheralNames.h"
lypinator 0:bb348c97df44 37 #include "PinNames.h"
lypinator 0:bb348c97df44 38
lypinator 0:bb348c97df44 39 #ifdef __cplusplus
lypinator 0:bb348c97df44 40 extern "C" {
lypinator 0:bb348c97df44 41 #endif
lypinator 0:bb348c97df44 42
lypinator 0:bb348c97df44 43 /*
lypinator 0:bb348c97df44 44 * Note: reg_clr might actually be same as reg_set.
lypinator 0:bb348c97df44 45 * Depends on family whether BRR is available on top of BSRR
lypinator 0:bb348c97df44 46 * if BRR does not exist, family shall define GPIO_IP_WITHOUT_BRR
lypinator 0:bb348c97df44 47 */
lypinator 0:bb348c97df44 48 typedef struct {
lypinator 0:bb348c97df44 49 uint32_t mask;
lypinator 0:bb348c97df44 50 __IO uint32_t *reg_in;
lypinator 0:bb348c97df44 51 __IO uint32_t *reg_set;
lypinator 0:bb348c97df44 52 __IO uint32_t *reg_clr;
lypinator 0:bb348c97df44 53 PinName pin;
lypinator 0:bb348c97df44 54 GPIO_TypeDef *gpio;
lypinator 0:bb348c97df44 55 uint32_t ll_pin;
lypinator 0:bb348c97df44 56 } gpio_t;
lypinator 0:bb348c97df44 57
lypinator 0:bb348c97df44 58 static inline void gpio_write(gpio_t *obj, int value)
lypinator 0:bb348c97df44 59 {
lypinator 0:bb348c97df44 60 if (value) {
lypinator 0:bb348c97df44 61 *obj->reg_set = obj->mask;
lypinator 0:bb348c97df44 62 } else {
lypinator 0:bb348c97df44 63 #ifdef GPIO_IP_WITHOUT_BRR
lypinator 0:bb348c97df44 64 *obj->reg_clr = obj->mask << 16;
lypinator 0:bb348c97df44 65 #else
lypinator 0:bb348c97df44 66 *obj->reg_clr = obj->mask;
lypinator 0:bb348c97df44 67 #endif
lypinator 0:bb348c97df44 68 }
lypinator 0:bb348c97df44 69 }
lypinator 0:bb348c97df44 70
lypinator 0:bb348c97df44 71 static inline int gpio_read(gpio_t *obj)
lypinator 0:bb348c97df44 72 {
lypinator 0:bb348c97df44 73 return ((*obj->reg_in & obj->mask) ? 1 : 0);
lypinator 0:bb348c97df44 74 }
lypinator 0:bb348c97df44 75
lypinator 0:bb348c97df44 76 static inline int gpio_is_connected(const gpio_t *obj)
lypinator 0:bb348c97df44 77 {
lypinator 0:bb348c97df44 78 return obj->pin != (PinName)NC;
lypinator 0:bb348c97df44 79 }
lypinator 0:bb348c97df44 80
lypinator 0:bb348c97df44 81
lypinator 0:bb348c97df44 82 #ifdef __cplusplus
lypinator 0:bb348c97df44 83 }
lypinator 0:bb348c97df44 84 #endif
lypinator 0:bb348c97df44 85
lypinator 0:bb348c97df44 86 #endif