Import Mbed OS hard-float snapshot
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Beslan
203
targets/TARGET_STM/pinmap.c
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203
targets/TARGET_STM/pinmap.c
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/* mbed Microcontroller Library
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*******************************************************************************
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* Copyright (c) 2017, STMicroelectronics
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*******************************************************************************
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*/
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#include "mbed_assert.h"
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#include "pinmap.h"
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#include "PortNames.h"
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#include "mbed_error.h"
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#include "pin_device.h"
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extern GPIO_TypeDef *Set_GPIO_Clock(uint32_t port_idx);
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const uint32_t ll_pin_defines[16] = {
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LL_GPIO_PIN_0,
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LL_GPIO_PIN_1,
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LL_GPIO_PIN_2,
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LL_GPIO_PIN_3,
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LL_GPIO_PIN_4,
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LL_GPIO_PIN_5,
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LL_GPIO_PIN_6,
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LL_GPIO_PIN_7,
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LL_GPIO_PIN_8,
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LL_GPIO_PIN_9,
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LL_GPIO_PIN_10,
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LL_GPIO_PIN_11,
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LL_GPIO_PIN_12,
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LL_GPIO_PIN_13,
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LL_GPIO_PIN_14,
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LL_GPIO_PIN_15
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};
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/**
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* Configure pin (mode, speed, output type and pull-up/pull-down)
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*/
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void pin_function(PinName pin, int data)
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{
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if (pin == NC) {
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return;
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}
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// Get the pin informations
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uint32_t mode = STM_PIN_FUNCTION(data);
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uint32_t afnum = STM_PIN_AFNUM(data);
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uint32_t speed = STM_PIN_SPEED(data);
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uint32_t port = STM_PORT(pin);
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uint32_t ll_pin = ll_pin_defines[STM_PIN(pin)];
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uint32_t ll_mode = 0;
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// Enable GPIO clock
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GPIO_TypeDef *const gpio = Set_GPIO_Clock(port);
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/* Set default speed to high.
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* For most families there are dedicated registers so it is
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* not so important, register can be set at any time.
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* But for families like F1, speed only applies to output.
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*/
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#if defined (TARGET_STM32F1)
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if (mode == STM_PIN_OUTPUT) {
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#endif
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#if defined(DUAL_CORE)
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while (LL_HSEM_1StepLock(HSEM, CFG_HW_GPIO_SEMID)) {
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}
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#endif /* DUAL_CORE */
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switch (speed) {
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/* Default value for backward compatibility */
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case STM_PIN_SPEED_MASK:
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#if defined (LL_GPIO_SPEED_FREQ_VERY_HIGH)
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LL_GPIO_SetPinSpeed(gpio, ll_pin, LL_GPIO_SPEED_FREQ_VERY_HIGH);
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#else
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LL_GPIO_SetPinSpeed(gpio, ll_pin, LL_GPIO_SPEED_FREQ_HIGH);
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#endif
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break;
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default:
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LL_GPIO_SetPinSpeed(gpio, ll_pin, speed);
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break;
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}
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#if defined(DUAL_CORE)
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LL_HSEM_ReleaseLock(HSEM, CFG_HW_GPIO_SEMID, HSEM_CR_COREID_CURRENT);
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#endif /* DUAL_CORE */
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#if defined (TARGET_STM32F1)
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}
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#endif
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switch (mode) {
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case STM_PIN_INPUT:
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ll_mode = LL_GPIO_MODE_INPUT;
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break;
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case STM_PIN_OUTPUT:
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ll_mode = LL_GPIO_MODE_OUTPUT;
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break;
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case STM_PIN_ALTERNATE:
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ll_mode = LL_GPIO_MODE_ALTERNATE;
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// In case of ALT function, also set he afnum
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stm_pin_SetAFPin(gpio, pin, afnum);
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break;
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case STM_PIN_ANALOG:
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ll_mode = LL_GPIO_MODE_ANALOG;
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break;
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default:
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MBED_ASSERT(0);
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break;
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}
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#if defined(DUAL_CORE)
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while (LL_HSEM_1StepLock(HSEM, CFG_HW_GPIO_SEMID)) {
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}
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#endif /* DUAL_CORE */
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LL_GPIO_SetPinMode(gpio, ll_pin, ll_mode);
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#if defined(GPIO_ASCR_ASC0)
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/* For families where Analog Control ASC0 register is present */
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if (STM_PIN_ANALOG_CONTROL(data)) {
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LL_GPIO_EnablePinAnalogControl(gpio, ll_pin);
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} else {
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LL_GPIO_DisablePinAnalogControl(gpio, ll_pin);
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}
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#endif
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/* For now by default use Speed HIGH for output or alt modes */
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if ((mode == STM_PIN_OUTPUT) || (mode == STM_PIN_ALTERNATE)) {
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if (STM_PIN_OD(data)) {
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LL_GPIO_SetPinOutputType(gpio, ll_pin, LL_GPIO_OUTPUT_OPENDRAIN);
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} else {
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LL_GPIO_SetPinOutputType(gpio, ll_pin, LL_GPIO_OUTPUT_PUSHPULL);
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}
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}
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stm_pin_PullConfig(gpio, ll_pin, STM_PIN_PUPD(data));
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stm_pin_DisconnectDebug(pin);
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#if defined(DUAL_CORE)
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LL_HSEM_ReleaseLock(HSEM, CFG_HW_GPIO_SEMID, HSEM_CR_COREID_CURRENT);
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#endif /* DUAL_CORE */
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}
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/**
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* Configure pin pull-up/pull-down
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*/
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void pin_mode(PinName pin, PinMode mode)
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{
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if (pin == NC) {
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return;
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}
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uint32_t port_index = STM_PORT(pin);
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uint32_t ll_pin = ll_pin_defines[STM_PIN(pin)];
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// Enable GPIO clock
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GPIO_TypeDef *gpio = Set_GPIO_Clock(port_index);
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#if defined(DUAL_CORE)
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while (LL_HSEM_1StepLock(HSEM, CFG_HW_GPIO_SEMID)) {
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}
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#endif /* DUAL_CORE */
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uint32_t function = LL_GPIO_GetPinMode(gpio, ll_pin);
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if ((function == LL_GPIO_MODE_OUTPUT) || (function == LL_GPIO_MODE_ALTERNATE)) {
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if ((mode == OpenDrainNoPull) || (mode == OpenDrainPullUp) || (mode == OpenDrainPullDown)) {
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LL_GPIO_SetPinOutputType(gpio, ll_pin, LL_GPIO_OUTPUT_OPENDRAIN);
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} else {
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LL_GPIO_SetPinOutputType(gpio, ll_pin, LL_GPIO_OUTPUT_PUSHPULL);
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}
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}
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if ((mode == OpenDrainPullUp) || (mode == PullUp)) {
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stm_pin_PullConfig(gpio, ll_pin, GPIO_PULLUP);
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} else if ((mode == OpenDrainPullDown) || (mode == PullDown)) {
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stm_pin_PullConfig(gpio, ll_pin, GPIO_PULLDOWN);
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} else {
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stm_pin_PullConfig(gpio, ll_pin, GPIO_NOPULL);
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}
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#if defined(DUAL_CORE)
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LL_HSEM_ReleaseLock(HSEM, CFG_HW_GPIO_SEMID, HSEM_CR_COREID_CURRENT);
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#endif /* DUAL_CORE */
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}
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