From a84c32523cb971505e03ae73409839637d8706a9 Mon Sep 17 00:00:00 2001 From: Giovanni Di Sirio Date: Sat, 2 Apr 2016 08:31:39 +0000 Subject: STM32 LLD renaming done. git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@9208 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.c | 212 ++++++++++++++++++++++++++++ 1 file changed, 212 insertions(+) create mode 100644 os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.c (limited to 'os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.c') diff --git a/os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.c b/os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.c new file mode 100644 index 000000000..3bf027d89 --- /dev/null +++ b/os/hal/ports/STM32/LLD/GPIOv2/hal_pal_lld.c @@ -0,0 +1,212 @@ +/* + ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/** + * @file STM32/GPIOv2/pal_lld.c + * @brief STM32 PAL low level driver code. + * + * @addtogroup PAL + * @{ + */ + +#include "hal.h" + +#if HAL_USE_PAL || defined(__DOXYGEN__) + +/*===========================================================================*/ +/* Driver local definitions. */ +/*===========================================================================*/ + +#if defined(STM32L0XX) || defined(STM32L1XX) +#define AHB_EN_MASK STM32_GPIO_EN_MASK +#define AHB_LPEN_MASK AHB_EN_MASK + +#elif defined(STM32F0XX) || defined(STM32F3XX) || defined(STM32F37X) +#define AHB_EN_MASK STM32_GPIO_EN_MASK +#define AHB_LPEN_MASK 0 + +#elif defined(STM32F2XX) || defined(STM32F4XX) || defined(STM32F7XX) +#define AHB1_EN_MASK STM32_GPIO_EN_MASK +#define AHB1_LPEN_MASK AHB1_EN_MASK + +#else +#error "missing or unsupported platform for GPIOv2 PAL driver" +#endif + +/*===========================================================================*/ +/* Driver exported variables. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local variables and types. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local functions. */ +/*===========================================================================*/ + +static void initgpio(stm32_gpio_t *gpiop, const stm32_gpio_setup_t *config) { + + gpiop->OTYPER = config->otyper; + gpiop->OSPEEDR = config->ospeedr; + gpiop->PUPDR = config->pupdr; + gpiop->ODR = config->odr; + gpiop->AFRL = config->afrl; + gpiop->AFRH = config->afrh; + gpiop->MODER = config->moder; +} + +/*===========================================================================*/ +/* Driver interrupt handlers. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver exported functions. */ +/*===========================================================================*/ + +/** + * @brief STM32 I/O ports configuration. + * @details Ports A-D(E, F, G, H) clocks enabled. + * + * @param[in] config the STM32 ports configuration + * + * @notapi + */ +void _pal_lld_init(const PALConfig *config) { + + /* + * Enables the GPIO related clocks. + */ +#if defined(STM32L0XX) + RCC->IOPENR |= AHB_EN_MASK; + RCC->IOPSMENR |= AHB_LPEN_MASK; +#elif defined(STM32L1XX) + rccEnableAHB(AHB_EN_MASK, TRUE); + RCC->AHBLPENR |= AHB_LPEN_MASK; +#elif defined(STM32F0XX) + rccEnableAHB(AHB_EN_MASK, TRUE); +#elif defined(STM32F3XX) || defined(STM32F37X) + rccEnableAHB(AHB_EN_MASK, TRUE); +#elif defined(STM32F2XX) || defined(STM32F4XX) || defined(STM32F7XX) + RCC->AHB1ENR |= AHB1_EN_MASK; + RCC->AHB1LPENR |= AHB1_LPEN_MASK; +#endif + + /* + * Initial GPIO setup. + */ +#if STM32_HAS_GPIOA + initgpio(GPIOA, &config->PAData); +#endif +#if STM32_HAS_GPIOB + initgpio(GPIOB, &config->PBData); +#endif +#if STM32_HAS_GPIOC + initgpio(GPIOC, &config->PCData); +#endif +#if STM32_HAS_GPIOD + initgpio(GPIOD, &config->PDData); +#endif +#if STM32_HAS_GPIOE + initgpio(GPIOE, &config->PEData); +#endif +#if STM32_HAS_GPIOF + initgpio(GPIOF, &config->PFData); +#endif +#if STM32_HAS_GPIOG + initgpio(GPIOG, &config->PGData); +#endif +#if STM32_HAS_GPIOH + initgpio(GPIOH, &config->PHData); +#endif +#if STM32_HAS_GPIOI + initgpio(GPIOI, &config->PIData); +#endif +#if STM32_HAS_GPIOJ + initgpio(GPIOJ, &config->PJData); +#endif +#if STM32_HAS_GPIOK + initgpio(GPIOK, &config->PKData); +#endif +} + +/** + * @brief Pads mode setup. + * @details This function programs a pads group belonging to the same port + * with the specified mode. + * @note @p PAL_MODE_UNCONNECTED is implemented as push pull at minimum + * speed. + * + * @param[in] port the port identifier + * @param[in] mask the group mask + * @param[in] mode the mode + * + * @notapi + */ +void _pal_lld_setgroupmode(ioportid_t port, + ioportmask_t mask, + iomode_t mode) { + + uint32_t moder = (mode & PAL_STM32_MODE_MASK) >> 0; + uint32_t otyper = (mode & PAL_STM32_OTYPE_MASK) >> 2; + uint32_t ospeedr = (mode & PAL_STM32_OSPEED_MASK) >> 3; + uint32_t pupdr = (mode & PAL_STM32_PUPDR_MASK) >> 5; + uint32_t altr = (mode & PAL_STM32_ALTERNATE_MASK) >> 7; + uint32_t bit = 0; + while (true) { + if ((mask & 1) != 0) { + uint32_t altrmask, m1, m2, m4; + + altrmask = altr << ((bit & 7) * 4); + m1 = 1 << bit; + m2 = 3 << (bit * 2); + m4 = 15 << ((bit & 7) * 4); + port->OTYPER = (port->OTYPER & ~m1) | otyper; + port->OSPEEDR = (port->OSPEEDR & ~m2) | ospeedr; + port->PUPDR = (port->PUPDR & ~m2) | pupdr; + if (moder == PAL_STM32_MODE_ALTERNATE) { + /* If going in alternate mode then the alternate number is set + before switching mode in order to avoid glitches.*/ + if (bit < 8) + port->AFRL = (port->AFRL & ~m4) | altrmask; + else + port->AFRH = (port->AFRH & ~m4) | altrmask; + port->MODER = (port->MODER & ~m2) | moder; + } + else { + /* If going into a non-alternate mode then the mode is switched + before setting the alternate mode in order to avoid glitches.*/ + port->MODER = (port->MODER & ~m2) | moder; + if (bit < 8) + port->AFRL = (port->AFRL & ~m4) | altrmask; + else + port->AFRH = (port->AFRH & ~m4) | altrmask; + } + } + mask >>= 1; + if (!mask) + return; + otyper <<= 1; + ospeedr <<= 2; + pupdr <<= 2; + moder <<= 2; + bit++; + } +} + +#endif /* HAL_USE_PAL */ + +/** @} */ -- cgit v1.2.3