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Use LL for pin config
Signed-off-by: Frederic.Pillon <[email protected]>
1 parent 537c89a commit f1e9f97

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‎cores/arduino/stm32/pinconfig.h

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/*
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*******************************************************************************
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* Copyright (c) 2018, 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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* Based on mbed-os/target/TARGET_STM/TARGET_STMYY/pin_device.h
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*/
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#ifndef _PINCONFIG_H
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#define _PINCONFIG_H
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#include "PinAF_STM32F1.h"
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#include "stm32yyxx_ll_gpio.h"
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static inline void pin_DisconnectDebug(PinName pin)
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{
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#ifdef STM32F1xx
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pinF1_DisconnectDebug(pin);
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#endif /* STM32F1xx */
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}
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static inline void pin_PullConfig(GPIO_TypeDef *gpio, uint32_t ll_pin, uint32_t pull_config)
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{
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#ifdef STM32F1xx
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uint32_t function = LL_GPIO_GetPinMode(gpio, ll_pin);
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#endif
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switch (pull_config) {
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case GPIO_PULLUP:
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#ifdef STM32F1xx
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if (function == LL_GPIO_MODE_FLOATING) {
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LL_GPIO_SetPinMode(gpio, ll_pin, LL_GPIO_MODE_INPUT);
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}
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#endif
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LL_GPIO_SetPinPull(gpio, ll_pin, LL_GPIO_PULL_UP);
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break;
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case GPIO_PULLDOWN:
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#ifdef STM32F1xx
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if (function == LL_GPIO_MODE_FLOATING) {
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LL_GPIO_SetPinMode(gpio, ll_pin, LL_GPIO_MODE_INPUT);
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}
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#endif
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LL_GPIO_SetPinPull(gpio, ll_pin, LL_GPIO_PULL_DOWN);
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break;
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default:
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#ifdef STM32F1xx
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/* Input+NoPull = Floating for F1 family */
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if (function == LL_GPIO_MODE_INPUT) {
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LL_GPIO_SetPinMode(gpio, ll_pin, LL_GPIO_MODE_FLOATING);
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}
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#else
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LL_GPIO_SetPinPull(gpio, ll_pin, LL_GPIO_PULL_NO);
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#endif
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break;
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}
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}
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static inline void pin_SetAFPin(GPIO_TypeDef *gpio, PinName pin, uint32_t afnum)
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{
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#ifdef STM32F1xx
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UNUSED(gpio);
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UNUSED(pin);
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pin_SetF1AFPin(afnum);
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#else
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uint32_t ll_pin = STM_LL_GPIO_PIN(pin);
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if (STM_PIN(pin) > 7) {
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LL_GPIO_SetAFPin_8_15(gpio, ll_pin, afnum);
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} else {
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LL_GPIO_SetAFPin_0_7(gpio, ll_pin, afnum);
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}
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#endif
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}
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#endif

‎cores/arduino/stm32/pinmap.c

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* limitations under the License.
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*/
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//Based on mbed-os/hal/mbed_pinmap_common.c
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#include "pinmap.h"
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#include "pinconfig.h"
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#include "stm32yyxx_ll_gpio.h"
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/* Map STM_PIN to LL */
@@ -51,6 +51,85 @@ bool pin_in_pinmap(PinName pin, const PinMap *map)
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return false;
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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 function)
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{
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/* Get the pin informations */
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uint32_t mode = STM_PIN_FUNCTION(function);
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uint32_t afnum = STM_PIN_AFNUM(function);
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uint32_t port = STM_PORT(pin);
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uint32_t ll_pin = STM_LL_GPIO_PIN(pin);
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uint32_t ll_mode = 0;
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if (pin == (PinName)NC) {
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Error_Handler();
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}
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/* Enable GPIO clock */
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GPIO_TypeDef *gpio = set_GPIO_Port_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 (STM32F1xx)
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if (mode == STM_PIN_OUTPUT) {
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#endif
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#ifdef 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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#if defined (STM32F1xx)
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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 the afnum */
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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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Error_Handler();
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break;
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}
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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(function)) {
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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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if ((mode == STM_PIN_OUTPUT) || (mode == STM_PIN_ALTERNATE)) {
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if (STM_PIN_OD(function)) {
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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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pin_PullConfig(gpio, ll_pin, STM_PIN_PUPD(function));
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pin_DisconnectDebug(pin);
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}
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void *pinmap_find_peripheral(PinName pin, const PinMap *map)
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{
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while (map->pin != NC) {

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