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Removed EXTIv1 from STM32/LLD. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@11506 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
Giovanni Di Sirio 2018-02-19 09:58:04 +00:00
parent 1e076f0a0a
commit 37b7b9df74
4 changed files with 0 additions and 426 deletions
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9
os/hal/ports/STM32/LLD/EXTIv1/driver.mk
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ifeq ($(USE_SMART_BUILD),yes)
ifneq ($(findstring HAL_USE_EXT TRUE,$(HALCONF)),)
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/EXTIv1/hal_ext_lld.c
endif
else
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/STM32/LLD/EXTIv1/hal_ext_lld.c
endif
PLATFORMINC += $(CHIBIOS)/os/hal/ports/STM32/LLD/EXTIv1

239
os/hal/ports/STM32/LLD/EXTIv1/hal_ext_lld.c
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@ -1,239 +0,0 @@
/*
ChibiOS - Copyright (C) 2006..2018 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 EXTIv1/hal_ext_lld.c
* @brief STM32 EXT subsystem low level driver source.
*
* @addtogroup EXT
* @{
*/
#include "hal.h"
#if HAL_USE_EXT || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/* Handling a difference in ST headers.*/
#if defined(STM32L4XX)
#define EMR EMR1
#define IMR IMR1
#define PR PR1
#define RTSR RTSR1
#define FTSR FTSR1
#endif
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/**
* @brief EXTD1 driver identifier.
*/
EXTDriver EXTD1;
/*===========================================================================*/
/* Driver local variables and types. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief Low level EXT driver initialization.
*
* @notapi
*/
void ext_lld_init(void) {
/* Driver initialization.*/
extObjectInit(&EXTD1);
}
/**
* @brief Configures and activates the EXT peripheral.
*
* @param[in] extp pointer to the @p EXTDriver object
*
* @notapi
*/
void ext_lld_start(EXTDriver *extp) {
expchannel_t line;
if (extp->state == EXT_STOP)
ext_lld_exti_irq_enable();
/* Configuration of automatic channels.*/
for (line = 0; line < EXT_MAX_CHANNELS; line++)
if (extp->config->channels[line].mode & EXT_CH_MODE_AUTOSTART)
ext_lld_channel_enable(extp, line);
else
ext_lld_channel_disable(extp, line);
}
/**
* @brief Deactivates the EXT peripheral.
*
* @param[in] extp pointer to the @p EXTDriver object
*
* @notapi
*/
void ext_lld_stop(EXTDriver *extp) {
if (extp->state == EXT_ACTIVE)
ext_lld_exti_irq_disable();
EXTI->EMR = 0;
EXTI->IMR = STM32_EXTI_IMR_MASK;
EXTI->PR = ~STM32_EXTI_IMR_MASK;
#if STM32_EXTI_NUM_LINES > 32
EXTI->IMR2 = STM32_EXTI_IMR2_MASK;
EXTI->PR2 = ~STM32_EXTI_IMR2_MASK;
#endif
}
/**
* @brief Enables an EXT channel.
*
* @param[in] extp pointer to the @p EXTDriver object
* @param[in] channel channel to be enabled
*
* @notapi
*/
void ext_lld_channel_enable(EXTDriver *extp, expchannel_t channel) {
uint32_t cmask = (1 << (channel & 0x1F));
/* Setting the associated GPIO for external channels.*/
if (channel < 16) {
uint32_t n = channel >> 2;
uint32_t mask = ~(0xF << ((channel & 3) * 4));
uint32_t port = ((extp->config->channels[channel].mode &
EXT_MODE_GPIO_MASK) >>
EXT_MODE_GPIO_OFF) << ((channel & 3) * 4);
#if defined(STM32F1XX)
AFIO->EXTICR[n] = (AFIO->EXTICR[n] & mask) | port;
#else /* !defined(STM32F1XX) */
SYSCFG->EXTICR[n] = (SYSCFG->EXTICR[n] & mask) | port;
#endif /* !defined(STM32F1XX) */
}
#if STM32_EXTI_NUM_LINES > 32
if (channel < 32) {
#endif
/* Masked out lines must not be touched by this driver.*/
if ((cmask & STM32_EXTI_IMR_MASK) != 0U) {
return;
}
/* Programming edge registers.*/
if (extp->config->channels[channel].mode & EXT_CH_MODE_RISING_EDGE)
EXTI->RTSR |= cmask;
else
EXTI->RTSR &= ~cmask;
if (extp->config->channels[channel].mode & EXT_CH_MODE_FALLING_EDGE)
EXTI->FTSR |= cmask;
else
EXTI->FTSR &= ~cmask;
/* Programming interrupt and event registers.*/
if (extp->config->channels[channel].cb != NULL) {
EXTI->IMR |= cmask;
EXTI->EMR &= ~cmask;
}
else {
EXTI->EMR |= cmask;
EXTI->IMR &= ~cmask;
}
#if STM32_EXTI_NUM_LINES > 32
}
else {
/* Masked out lines must not be touched by this driver.*/
if ((cmask & STM32_EXTI_IMR2_MASK) != 0U) {
return;
}
/* Programming edge registers.*/
if (extp->config->channels[channel].mode & EXT_CH_MODE_RISING_EDGE)
EXTI->RTSR2 |= cmask;
else
EXTI->RTSR2 &= ~cmask;
if (extp->config->channels[channel].mode & EXT_CH_MODE_FALLING_EDGE)
EXTI->FTSR2 |= cmask;
else
EXTI->FTSR2 &= ~cmask;
/* Programming interrupt and event registers.*/
if (extp->config->channels[channel].cb != NULL) {
EXTI->IMR2 |= cmask;
EXTI->EMR2 &= ~cmask;
}
else {
EXTI->EMR2 |= cmask;
EXTI->IMR2 &= ~cmask;
}
}
#endif
}
/**
* @brief Disables an EXT channel.
*
* @param[in] extp pointer to the @p EXTDriver object
* @param[in] channel channel to be disabled
*
* @notapi
*/
void ext_lld_channel_disable(EXTDriver *extp, expchannel_t channel) {
uint32_t cmask = (1 << (channel & 0x1F));
(void)extp;
#if STM32_EXTI_NUM_LINES > 32
if (channel < 32) {
#endif
EXTI->IMR &= ~cmask;
EXTI->EMR &= ~cmask;
EXTI->RTSR &= ~cmask;
EXTI->FTSR &= ~cmask;
EXTI->PR = cmask;
#if STM32_EXTI_NUM_LINES > 32
}
else {
EXTI->IMR2 &= ~cmask;
EXTI->EMR2 &= ~cmask;
EXTI->RTSR2 &= ~cmask;
EXTI->FTSR2 &= ~cmask;
EXTI->PR2 = cmask;
}
#endif
}
#endif /* HAL_USE_EXT */
/** @} */

155
os/hal/ports/STM32/LLD/EXTIv1/hal_ext_lld.h
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@ -1,155 +0,0 @@
/*
ChibiOS - Copyright (C) 2006..2018 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 EXTIv1/hal_ext_lld.h
* @brief STM32 EXT subsystem low level driver header.
*
* @addtogroup EXT
* @{
*/
#ifndef HAL_EXT_LLD_H
#define HAL_EXT_LLD_H
#if HAL_USE_EXT || defined(__DOXYGEN__)
#include "hal_ext_lld_isr.h"
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/**
* @brief Available number of EXT channels.
*/
#define EXT_MAX_CHANNELS STM32_EXTI_NUM_LINES
/**
* @name STM32-specific EXT channel modes
* @{
*/
#define EXT_MODE_GPIO_MASK 0xF0 /**< @brief Port field mask. */
#define EXT_MODE_GPIO_OFF 4 /**< @brief Port field offset. */
#define EXT_MODE_GPIOA 0x00 /**< @brief GPIOA identifier. */
#define EXT_MODE_GPIOB 0x10 /**< @brief GPIOB identifier. */
#define EXT_MODE_GPIOC 0x20 /**< @brief GPIOC identifier. */
#define EXT_MODE_GPIOD 0x30 /**< @brief GPIOD identifier. */
#define EXT_MODE_GPIOE 0x40 /**< @brief GPIOE identifier. */
#define EXT_MODE_GPIOF 0x50 /**< @brief GPIOF identifier. */
#define EXT_MODE_GPIOG 0x60 /**< @brief GPIOG identifier. */
#define EXT_MODE_GPIOH 0x70 /**< @brief GPIOH identifier. */
#define EXT_MODE_GPIOI 0x80 /**< @brief GPIOI identifier. */
/** @} */
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief EXT channel identifier.
*/
typedef uint32_t expchannel_t;
/**
* @brief Type of an EXT generic notification callback.
*
* @param[in] extp pointer to the @p EXPDriver object triggering the
* callback
*/
typedef void (*extcallback_t)(EXTDriver *extp, expchannel_t channel);
/**
* @brief Channel configuration structure.
*/
typedef struct {
/**
* @brief Channel mode.
*/
uint32_t mode;
/**
* @brief Channel callback.
* @details In the STM32 implementation a @p NULL callback pointer is
* valid and configures the channel as an event sources instead
* of an interrupt source.
*/
extcallback_t cb;
} EXTChannelConfig;
/**
* @brief Driver configuration structure.
* @note It could be empty on some architectures.
*/
typedef struct {
/**
* @brief Channel configurations.
*/
EXTChannelConfig channels[EXT_MAX_CHANNELS];
/* End of the mandatory fields.*/
} EXTConfig;
/**
* @brief Structure representing an EXT driver.
*/
struct EXTDriver {
/**
* @brief Driver state.
*/
extstate_t state;
/**
* @brief Current configuration data.
*/
const EXTConfig *config;
/* End of the mandatory fields.*/
};
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#if !defined(__DOXYGEN__)
extern EXTDriver EXTD1;
#endif
#ifdef __cplusplus
extern "C" {
#endif
void ext_lld_init(void);
void ext_lld_start(EXTDriver *extp);
void ext_lld_stop(EXTDriver *extp);
void ext_lld_channel_enable(EXTDriver *extp, expchannel_t channel);
void ext_lld_channel_disable(EXTDriver *extp, expchannel_t channel);
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_EXT */
#endif /* HAL_EXT_LLD_H */
/** @} */

23
os/hal/ports/STM32/LLD/EXTIv1/notes.txt
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@ -1,23 +0,0 @@
STM32 EXT driver implementation through EXTI unit.
There are several kind of EXTI lines:
1) GPIO lines. Always in range 0..15, always handled by the EXT driver.
2) Configurable peripheral events not shared, always handled by the EXT driver.
3) Configurable peripheral events shared with other, non EXTI, interrupts.
The EXTI driver declares the ISR and has to call the IRQ handler of the
other driver.
4) Direct lines (1 in IMR register after reset). The EXTI driver never touches
the default configuration for direct lines and does not declare ISRs.
5) Unused lines. The EXTI driver does not declare ISRs.
The file registry must export:
STM32_EXTI_NUM_LINES - Range of configurable lines, it can have holes of
unused or direct lines. Configurable line numbers go
from 0 to STM32_EXTI_NUM_LINES-1.
STM32_EXTI_IMR_MASK - Direct lines and unused lines marked as 1 in this
mask, configurable lines marked as 0.
STM32_EXTI_IMR2_MASK - Optional, for lines 32...63.
ISRs are not declared inside the driver, each sub-family must have its own
ext_lld_isr.h and ext_lld_isr.c files.