Thomas Byrne / mbed-src-stm32f030k6

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targets/hal/TARGET_STM/TARGET_STM32L1/gpio_api.c@496:543871686697, 2015-03-24 (annotated)

Committer:
mbed_official
Date:
Tue Mar 24 09:00:08 2015 +0000
Revision:
496:543871686697
Parent:
targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/gpio_api.c@354:e67efb2aab0e 
Synchronized with git revision ea01d61fa18430564b78226045b196bb6bf6b66a



Full URL: https://github.com/mbedmicro/mbed/commit/ea01d61fa18430564b78226045b196bb6bf6b66a/



NUCLEO_L152RE - reorg hal

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 76:aeb1df146756 1 /* mbed Microcontroller Library
mbed_official 76:aeb1df146756 2 *******************************************************************************
mbed_official 76:aeb1df146756 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 76:aeb1df146756 4 * All rights reserved.
mbed_official 76:aeb1df146756 5 *
mbed_official 76:aeb1df146756 6 * Redistribution and use in source and binary forms, with or without
mbed_official 76:aeb1df146756 7 * modification, are permitted provided that the following conditions are met:
mbed_official 76:aeb1df146756 8 *
mbed_official 76:aeb1df146756 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 76:aeb1df146756 10 * this list of conditions and the following disclaimer.
mbed_official 76:aeb1df146756 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 76:aeb1df146756 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 76:aeb1df146756 13 * and/or other materials provided with the distribution.
mbed_official 76:aeb1df146756 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 76:aeb1df146756 15 * may be used to endorse or promote products derived from this software
mbed_official 76:aeb1df146756 16 * without specific prior written permission.
mbed_official 76:aeb1df146756 17 *
mbed_official 76:aeb1df146756 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 76:aeb1df146756 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 76:aeb1df146756 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 76:aeb1df146756 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 76:aeb1df146756 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 76:aeb1df146756 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 76:aeb1df146756 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 76:aeb1df146756 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 76:aeb1df146756 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 76:aeb1df146756 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 76:aeb1df146756 28 *******************************************************************************
mbed_official 76:aeb1df146756 29 */
mbed_official 227:7bd0639b8911 30 #include "mbed_assert.h"
mbed_official 76:aeb1df146756 31 #include "gpio_api.h"
mbed_official 76:aeb1df146756 32 #include "pinmap.h"
mbed_official 285:31249416b6f9 33 #include "mbed_error.h"
mbed_official 76:aeb1df146756 34
mbed_official 76:aeb1df146756 35 extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
mbed_official 76:aeb1df146756 36
mbed_official 354:e67efb2aab0e 37 uint32_t gpio_set(PinName pin)
mbed_official 354:e67efb2aab0e 38 {
mbed_official 227:7bd0639b8911 39 MBED_ASSERT(pin != (PinName)NC);
mbed_official 76:aeb1df146756 40
mbed_official 354:e67efb2aab0e 41 pin_function(pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 76:aeb1df146756 42 return (uint32_t)(1 << ((uint32_t)pin & 0xF)); // Return the pin mask
mbed_official 76:aeb1df146756 43 }
mbed_official 76:aeb1df146756 44
mbed_official 354:e67efb2aab0e 45 void gpio_init(gpio_t *obj, PinName pin)
mbed_official 354:e67efb2aab0e 46 {
mbed_official 227:7bd0639b8911 47 obj->pin = pin;
mbed_official 227:7bd0639b8911 48 if (pin == (PinName)NC)
mbed_official 227:7bd0639b8911 49 return;
mbed_official 354:e67efb2aab0e 50
mbed_official 76:aeb1df146756 51 uint32_t port_index = STM_PORT(pin);
mbed_official 174:8bb9f3a33240 52
mbed_official 76:aeb1df146756 53 // Enable GPIO clock
mbed_official 76:aeb1df146756 54 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 84:f54042cbc282 55 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 174:8bb9f3a33240 56
mbed_official 76:aeb1df146756 57 // Fill GPIO object structure for future use
mbed_official 76:aeb1df146756 58 obj->mask = gpio_set(pin);
mbed_official 76:aeb1df146756 59 obj->reg_in = &gpio->IDR;
mbed_official 354:e67efb2aab0e 60 obj->reg_set = &gpio->BSRR;
mbed_official 354:e67efb2aab0e 61 obj->reg_clr = &gpio->BRR;
mbed_official 76:aeb1df146756 62 }
mbed_official 76:aeb1df146756 63
mbed_official 354:e67efb2aab0e 64 void gpio_mode(gpio_t *obj, PinMode mode)
mbed_official 354:e67efb2aab0e 65 {
mbed_official 76:aeb1df146756 66 pin_mode(obj->pin, mode);
mbed_official 76:aeb1df146756 67 }
mbed_official 76:aeb1df146756 68
mbed_official 354:e67efb2aab0e 69 void gpio_dir(gpio_t *obj, PinDirection direction)
mbed_official 354:e67efb2aab0e 70 {
mbed_official 227:7bd0639b8911 71 MBED_ASSERT(obj->pin != (PinName)NC);
mbed_official 76:aeb1df146756 72 if (direction == PIN_OUTPUT) {
mbed_official 354:e67efb2aab0e 73 pin_function(obj->pin, STM_PIN_DATA(STM_MODE_OUTPUT_PP, GPIO_NOPULL, 0));
mbed_official 174:8bb9f3a33240 74 } else { // PIN_INPUT
mbed_official 354:e67efb2aab0e 75 pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 76:aeb1df146756 76 }
mbed_official 76:aeb1df146756 77 }