Andrew SaLoutos / mbed-dev-STM-lean

From Ben Katz mbed-dev library. Removed unnecessary target files to reduce the overall size by a factor of 10 to make it easier to import into the online IDE.

Dependents:   motor_driver motor_driver_screaming_fix

targets/TARGET_STM/pinmap.c@0:083111ae2a11, 2020-11-26 (annotated)

Committer:
saloutos
Date:
Thu Nov 26 04:08:56 2020 +0000
Revision:
0:083111ae2a11
first commit of leaned mbed dev lib

Who changed what in which revision?

UserRevisionLine numberNew contents of line
saloutos 0:083111ae2a11 1 /* mbed Microcontroller Library
saloutos 0:083111ae2a11 2 *******************************************************************************
saloutos 0:083111ae2a11 3 * Copyright (c) 2017, STMicroelectronics
saloutos 0:083111ae2a11 4 * All rights reserved.
saloutos 0:083111ae2a11 5 *
saloutos 0:083111ae2a11 6 * Redistribution and use in source and binary forms, with or without
saloutos 0:083111ae2a11 7 * modification, are permitted provided that the following conditions are met:
saloutos 0:083111ae2a11 8 *
saloutos 0:083111ae2a11 9 * 1. Redistributions of source code must retain the above copyright notice,
saloutos 0:083111ae2a11 10 * this list of conditions and the following disclaimer.
saloutos 0:083111ae2a11 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
saloutos 0:083111ae2a11 12 * this list of conditions and the following disclaimer in the documentation
saloutos 0:083111ae2a11 13 * and/or other materials provided with the distribution.
saloutos 0:083111ae2a11 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
saloutos 0:083111ae2a11 15 * may be used to endorse or promote products derived from this software
saloutos 0:083111ae2a11 16 * without specific prior written permission.
saloutos 0:083111ae2a11 17 *
saloutos 0:083111ae2a11 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
saloutos 0:083111ae2a11 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
saloutos 0:083111ae2a11 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
saloutos 0:083111ae2a11 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
saloutos 0:083111ae2a11 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
saloutos 0:083111ae2a11 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
saloutos 0:083111ae2a11 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
saloutos 0:083111ae2a11 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
saloutos 0:083111ae2a11 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
saloutos 0:083111ae2a11 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
saloutos 0:083111ae2a11 28 *******************************************************************************
saloutos 0:083111ae2a11 29 */
saloutos 0:083111ae2a11 30 #include "mbed_assert.h"
saloutos 0:083111ae2a11 31 #include "pinmap.h"
saloutos 0:083111ae2a11 32 #include "PortNames.h"
saloutos 0:083111ae2a11 33 #include "mbed_error.h"
saloutos 0:083111ae2a11 34 #include "pin_device.h"
saloutos 0:083111ae2a11 35
saloutos 0:083111ae2a11 36 extern GPIO_TypeDef *Set_GPIO_Clock(uint32_t port_idx);
saloutos 0:083111ae2a11 37
saloutos 0:083111ae2a11 38 const uint32_t ll_pin_defines[16] = {
saloutos 0:083111ae2a11 39 LL_GPIO_PIN_0,
saloutos 0:083111ae2a11 40 LL_GPIO_PIN_1,
saloutos 0:083111ae2a11 41 LL_GPIO_PIN_2,
saloutos 0:083111ae2a11 42 LL_GPIO_PIN_3,
saloutos 0:083111ae2a11 43 LL_GPIO_PIN_4,
saloutos 0:083111ae2a11 44 LL_GPIO_PIN_5,
saloutos 0:083111ae2a11 45 LL_GPIO_PIN_6,
saloutos 0:083111ae2a11 46 LL_GPIO_PIN_7,
saloutos 0:083111ae2a11 47 LL_GPIO_PIN_8,
saloutos 0:083111ae2a11 48 LL_GPIO_PIN_9,
saloutos 0:083111ae2a11 49 LL_GPIO_PIN_10,
saloutos 0:083111ae2a11 50 LL_GPIO_PIN_11,
saloutos 0:083111ae2a11 51 LL_GPIO_PIN_12,
saloutos 0:083111ae2a11 52 LL_GPIO_PIN_13,
saloutos 0:083111ae2a11 53 LL_GPIO_PIN_14,
saloutos 0:083111ae2a11 54 LL_GPIO_PIN_15
saloutos 0:083111ae2a11 55 };
saloutos 0:083111ae2a11 56
saloutos 0:083111ae2a11 57 /**
saloutos 0:083111ae2a11 58 * Configure pin (mode, speed, output type and pull-up/pull-down)
saloutos 0:083111ae2a11 59 */
saloutos 0:083111ae2a11 60 void pin_function(PinName pin, int data)
saloutos 0:083111ae2a11 61 {
saloutos 0:083111ae2a11 62 MBED_ASSERT(pin != (PinName)NC);
saloutos 0:083111ae2a11 63
saloutos 0:083111ae2a11 64 // Get the pin informations
saloutos 0:083111ae2a11 65 uint32_t mode = STM_PIN_FUNCTION(data);
saloutos 0:083111ae2a11 66 uint32_t afnum = STM_PIN_AFNUM(data);
saloutos 0:083111ae2a11 67 uint32_t port = STM_PORT(pin);
saloutos 0:083111ae2a11 68 uint32_t ll_pin = ll_pin_defines[STM_PIN(pin)];
saloutos 0:083111ae2a11 69 uint32_t ll_mode = 0;
saloutos 0:083111ae2a11 70
saloutos 0:083111ae2a11 71 // Enable GPIO clock
saloutos 0:083111ae2a11 72 GPIO_TypeDef *gpio = Set_GPIO_Clock(port);
saloutos 0:083111ae2a11 73
saloutos 0:083111ae2a11 74 /* Set default speed to high.
saloutos 0:083111ae2a11 75 * For most families there are dedicated registers so it is
saloutos 0:083111ae2a11 76 * not so important, register can be set at any time.
saloutos 0:083111ae2a11 77 * But for families like F1, speed only applies to output.
saloutos 0:083111ae2a11 78 */
saloutos 0:083111ae2a11 79 #if defined (TARGET_STM32F1)
saloutos 0:083111ae2a11 80 if (mode == STM_PIN_OUTPUT) {
saloutos 0:083111ae2a11 81 #endif
saloutos 0:083111ae2a11 82 LL_GPIO_SetPinSpeed(gpio, ll_pin, LL_GPIO_SPEED_FREQ_HIGH);
saloutos 0:083111ae2a11 83 #if defined (TARGET_STM32F1)
saloutos 0:083111ae2a11 84 }
saloutos 0:083111ae2a11 85 #endif
saloutos 0:083111ae2a11 86
saloutos 0:083111ae2a11 87 switch (mode) {
saloutos 0:083111ae2a11 88 case STM_PIN_INPUT:
saloutos 0:083111ae2a11 89 ll_mode = LL_GPIO_MODE_INPUT;
saloutos 0:083111ae2a11 90 break;
saloutos 0:083111ae2a11 91 case STM_PIN_OUTPUT:
saloutos 0:083111ae2a11 92 ll_mode = LL_GPIO_MODE_OUTPUT;
saloutos 0:083111ae2a11 93 break;
saloutos 0:083111ae2a11 94 case STM_PIN_ALTERNATE:
saloutos 0:083111ae2a11 95 ll_mode = LL_GPIO_MODE_ALTERNATE;
saloutos 0:083111ae2a11 96 // In case of ALT function, also set he afnum
saloutos 0:083111ae2a11 97 stm_pin_SetAFPin(gpio, pin, afnum);
saloutos 0:083111ae2a11 98 break;
saloutos 0:083111ae2a11 99 case STM_PIN_ANALOG:
saloutos 0:083111ae2a11 100 ll_mode = LL_GPIO_MODE_ANALOG;
saloutos 0:083111ae2a11 101 break;
saloutos 0:083111ae2a11 102 default:
saloutos 0:083111ae2a11 103 MBED_ASSERT(0);
saloutos 0:083111ae2a11 104 break;
saloutos 0:083111ae2a11 105 }
saloutos 0:083111ae2a11 106 LL_GPIO_SetPinMode(gpio, ll_pin, ll_mode);
saloutos 0:083111ae2a11 107
saloutos 0:083111ae2a11 108 #if defined(GPIO_ASCR_ASC0)
saloutos 0:083111ae2a11 109 /* For families where Analog Control ASC0 register is present */
saloutos 0:083111ae2a11 110 if (STM_PIN_ANALOG_CONTROL(data)) {
saloutos 0:083111ae2a11 111 LL_GPIO_EnablePinAnalogControl(gpio, ll_pin);
saloutos 0:083111ae2a11 112 } else {
saloutos 0:083111ae2a11 113 LL_GPIO_DisablePinAnalogControl(gpio, ll_pin);
saloutos 0:083111ae2a11 114 }
saloutos 0:083111ae2a11 115 #endif
saloutos 0:083111ae2a11 116
saloutos 0:083111ae2a11 117 /* For now by default use Speed HIGH for output or alt modes */
saloutos 0:083111ae2a11 118 if ((mode == STM_PIN_OUTPUT) ||(mode == STM_PIN_ALTERNATE)) {
saloutos 0:083111ae2a11 119 if (STM_PIN_OD(data)) {
saloutos 0:083111ae2a11 120 LL_GPIO_SetPinOutputType(gpio, ll_pin, LL_GPIO_OUTPUT_OPENDRAIN);
saloutos 0:083111ae2a11 121 } else {
saloutos 0:083111ae2a11 122 LL_GPIO_SetPinOutputType(gpio, ll_pin, LL_GPIO_OUTPUT_PUSHPULL);
saloutos 0:083111ae2a11 123 }
saloutos 0:083111ae2a11 124 }
saloutos 0:083111ae2a11 125
saloutos 0:083111ae2a11 126 stm_pin_PullConfig(gpio, ll_pin, STM_PIN_PUPD(data));
saloutos 0:083111ae2a11 127
saloutos 0:083111ae2a11 128 stm_pin_DisconnectDebug(pin);
saloutos 0:083111ae2a11 129 }
saloutos 0:083111ae2a11 130
saloutos 0:083111ae2a11 131 /**
saloutos 0:083111ae2a11 132 * Configure pin pull-up/pull-down
saloutos 0:083111ae2a11 133 */
saloutos 0:083111ae2a11 134 void pin_mode(PinName pin, PinMode mode)
saloutos 0:083111ae2a11 135 {
saloutos 0:083111ae2a11 136 MBED_ASSERT(pin != (PinName)NC);
saloutos 0:083111ae2a11 137
saloutos 0:083111ae2a11 138 uint32_t port_index = STM_PORT(pin);
saloutos 0:083111ae2a11 139 uint32_t ll_pin = ll_pin_defines[STM_PIN(pin)];
saloutos 0:083111ae2a11 140 // Enable GPIO clock
saloutos 0:083111ae2a11 141 GPIO_TypeDef *gpio = Set_GPIO_Clock(port_index);
saloutos 0:083111ae2a11 142 uint32_t function = LL_GPIO_GetPinMode(gpio, ll_pin);
saloutos 0:083111ae2a11 143
saloutos 0:083111ae2a11 144 if ((function == LL_GPIO_MODE_OUTPUT) || (function == LL_GPIO_MODE_ALTERNATE))
saloutos 0:083111ae2a11 145 {
saloutos 0:083111ae2a11 146 if ((mode == OpenDrainNoPull) || (mode == OpenDrainPullUp) || (mode == OpenDrainPullDown)) {
saloutos 0:083111ae2a11 147 LL_GPIO_SetPinOutputType(gpio, ll_pin, LL_GPIO_OUTPUT_OPENDRAIN);
saloutos 0:083111ae2a11 148 } else {
saloutos 0:083111ae2a11 149 LL_GPIO_SetPinOutputType(gpio, ll_pin, LL_GPIO_OUTPUT_PUSHPULL);
saloutos 0:083111ae2a11 150 }
saloutos 0:083111ae2a11 151 }
saloutos 0:083111ae2a11 152
saloutos 0:083111ae2a11 153 if ((mode == OpenDrainPullUp) || (mode == PullUp)) {
saloutos 0:083111ae2a11 154 stm_pin_PullConfig(gpio, ll_pin, GPIO_PULLUP);
saloutos 0:083111ae2a11 155 } else if ((mode == OpenDrainPullDown) || (mode == PullDown)) {
saloutos 0:083111ae2a11 156 stm_pin_PullConfig(gpio, ll_pin, GPIO_PULLDOWN);
saloutos 0:083111ae2a11 157 } else {
saloutos 0:083111ae2a11 158 stm_pin_PullConfig(gpio, ll_pin, GPIO_NOPULL);
saloutos 0:083111ae2a11 159 }
saloutos 0:083111ae2a11 160 }