mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_STM/TARGET_DISCO_F303VC/port_api.c@250:a49055e7a707, 2014-07-08 (annotated)
- Committer:
- mbed_official
- Date:
- Tue Jul 08 11:15:08 2014 +0100
- Revision:
- 250:a49055e7a707
- Parent:
- 241:ffe41b0c8126
- Child:
- 251:de9a1e4ffd79
Synchronized with git revision 3197042b65f8d28e856e1a7812d45e2fbe80e3f1
Full URL: https://github.com/mbedmicro/mbed/commit/3197042b65f8d28e856e1a7812d45e2fbe80e3f1/
error.h -> mbed_error.h
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 157:90e3acc479a2 | 1 | /* mbed Microcontroller Library |
mbed_official | 157:90e3acc479a2 | 2 | ******************************************************************************* |
mbed_official | 157:90e3acc479a2 | 3 | * Copyright (c) 2014, STMicroelectronics |
mbed_official | 157:90e3acc479a2 | 4 | * All rights reserved. |
mbed_official | 157:90e3acc479a2 | 5 | * |
mbed_official | 157:90e3acc479a2 | 6 | * Redistribution and use in source and binary forms, with or without |
mbed_official | 157:90e3acc479a2 | 7 | * modification, are permitted provided that the following conditions are met: |
mbed_official | 157:90e3acc479a2 | 8 | * |
mbed_official | 157:90e3acc479a2 | 9 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 157:90e3acc479a2 | 10 | * this list of conditions and the following disclaimer. |
mbed_official | 157:90e3acc479a2 | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 157:90e3acc479a2 | 12 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 157:90e3acc479a2 | 13 | * and/or other materials provided with the distribution. |
mbed_official | 157:90e3acc479a2 | 14 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 157:90e3acc479a2 | 15 | * may be used to endorse or promote products derived from this software |
mbed_official | 157:90e3acc479a2 | 16 | * without specific prior written permission. |
mbed_official | 157:90e3acc479a2 | 17 | * |
mbed_official | 157:90e3acc479a2 | 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 157:90e3acc479a2 | 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 157:90e3acc479a2 | 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 157:90e3acc479a2 | 21 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 157:90e3acc479a2 | 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 157:90e3acc479a2 | 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 157:90e3acc479a2 | 24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 157:90e3acc479a2 | 25 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 157:90e3acc479a2 | 26 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 157:90e3acc479a2 | 27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 157:90e3acc479a2 | 28 | ******************************************************************************* |
mbed_official | 157:90e3acc479a2 | 29 | */ |
mbed_official | 157:90e3acc479a2 | 30 | #include "port_api.h" |
mbed_official | 241:ffe41b0c8126 | 31 | |
mbed_official | 241:ffe41b0c8126 | 32 | #if DEVICE_PORTIN || DEVICE_PORTOUT |
mbed_official | 241:ffe41b0c8126 | 33 | |
mbed_official | 157:90e3acc479a2 | 34 | #include "pinmap.h" |
mbed_official | 157:90e3acc479a2 | 35 | #include "gpio_api.h" |
mbed_official | 250:a49055e7a707 | 36 | #include "mbed_error.h" |
mbed_official | 157:90e3acc479a2 | 37 | |
mbed_official | 157:90e3acc479a2 | 38 | extern uint32_t Set_GPIO_Clock(uint32_t port_idx); |
mbed_official | 157:90e3acc479a2 | 39 | |
mbed_official | 157:90e3acc479a2 | 40 | // high nibble = port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...) |
mbed_official | 157:90e3acc479a2 | 41 | // low nibble = pin number |
mbed_official | 157:90e3acc479a2 | 42 | PinName port_pin(PortName port, int pin_n) { |
mbed_official | 157:90e3acc479a2 | 43 | return (PinName)(pin_n + (port << 4)); |
mbed_official | 157:90e3acc479a2 | 44 | } |
mbed_official | 157:90e3acc479a2 | 45 | |
mbed_official | 157:90e3acc479a2 | 46 | void port_init(port_t *obj, PortName port, int mask, PinDirection dir) { |
mbed_official | 157:90e3acc479a2 | 47 | uint32_t port_index = (uint32_t)port; |
mbed_official | 157:90e3acc479a2 | 48 | |
mbed_official | 157:90e3acc479a2 | 49 | // Enable GPIO clock |
mbed_official | 157:90e3acc479a2 | 50 | uint32_t gpio_add = Set_GPIO_Clock(port_index); |
mbed_official | 157:90e3acc479a2 | 51 | GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add; |
mbed_official | 157:90e3acc479a2 | 52 | |
mbed_official | 157:90e3acc479a2 | 53 | // Fill PORT object structure for future use |
mbed_official | 157:90e3acc479a2 | 54 | obj->port = port; |
mbed_official | 157:90e3acc479a2 | 55 | obj->mask = mask; |
mbed_official | 157:90e3acc479a2 | 56 | obj->direction = dir; |
mbed_official | 157:90e3acc479a2 | 57 | obj->reg_in = &gpio->IDR; |
mbed_official | 157:90e3acc479a2 | 58 | obj->reg_out = &gpio->ODR; |
mbed_official | 157:90e3acc479a2 | 59 | |
mbed_official | 157:90e3acc479a2 | 60 | port_dir(obj, dir); |
mbed_official | 157:90e3acc479a2 | 61 | } |
mbed_official | 157:90e3acc479a2 | 62 | |
mbed_official | 157:90e3acc479a2 | 63 | void port_dir(port_t *obj, PinDirection dir) { |
mbed_official | 157:90e3acc479a2 | 64 | uint32_t i; |
mbed_official | 157:90e3acc479a2 | 65 | obj->direction = dir; |
mbed_official | 157:90e3acc479a2 | 66 | for (i = 0; i < 16; i++) { // Process all pins |
mbed_official | 157:90e3acc479a2 | 67 | if (obj->mask & (1 << i)) { // If the pin is used |
mbed_official | 157:90e3acc479a2 | 68 | if (dir == PIN_OUTPUT) { |
mbed_official | 157:90e3acc479a2 | 69 | pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_OUT, GPIO_OType_PP, GPIO_PuPd_NOPULL, 0xFF)); |
mbed_official | 157:90e3acc479a2 | 70 | } else { // PIN_INPUT |
mbed_official | 157:90e3acc479a2 | 71 | pin_function(port_pin(obj->port, i), STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF)); |
mbed_official | 157:90e3acc479a2 | 72 | } |
mbed_official | 157:90e3acc479a2 | 73 | } |
mbed_official | 157:90e3acc479a2 | 74 | } |
mbed_official | 157:90e3acc479a2 | 75 | } |
mbed_official | 157:90e3acc479a2 | 76 | |
mbed_official | 157:90e3acc479a2 | 77 | void port_mode(port_t *obj, PinMode mode) { |
mbed_official | 157:90e3acc479a2 | 78 | uint32_t i; |
mbed_official | 157:90e3acc479a2 | 79 | for (i = 0; i < 16; i++) { // Process all pins |
mbed_official | 157:90e3acc479a2 | 80 | if (obj->mask & (1 << i)) { // If the pin is used |
mbed_official | 157:90e3acc479a2 | 81 | pin_mode(port_pin(obj->port, i), mode); |
mbed_official | 157:90e3acc479a2 | 82 | } |
mbed_official | 157:90e3acc479a2 | 83 | } |
mbed_official | 157:90e3acc479a2 | 84 | } |
mbed_official | 157:90e3acc479a2 | 85 | |
mbed_official | 157:90e3acc479a2 | 86 | void port_write(port_t *obj, int value) { |
mbed_official | 157:90e3acc479a2 | 87 | *obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask); |
mbed_official | 157:90e3acc479a2 | 88 | } |
mbed_official | 157:90e3acc479a2 | 89 | |
mbed_official | 157:90e3acc479a2 | 90 | int port_read(port_t *obj) { |
mbed_official | 157:90e3acc479a2 | 91 | if (obj->direction == PIN_OUTPUT) { |
mbed_official | 157:90e3acc479a2 | 92 | return (*obj->reg_out & obj->mask); |
mbed_official | 157:90e3acc479a2 | 93 | } else { // PIN_INPUT |
mbed_official | 157:90e3acc479a2 | 94 | return (*obj->reg_in & obj->mask); |
mbed_official | 157:90e3acc479a2 | 95 | } |
mbed_official | 157:90e3acc479a2 | 96 | } |
mbed_official | 157:90e3acc479a2 | 97 | |
mbed_official | 157:90e3acc479a2 | 98 | #endif |