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Files for STM32F3xx ADC driver, not complete. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4970 35acf78f-673a-0410-8e92-d51de3d6d3f4
master
gdisirio 2012-12-24 18:02:49 +00:00
parent efa72f03d5
commit 7273d8390d
9 changed files with 762 additions and 1 deletions
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2
os/hal/platforms/STM32F0xx/adc_lld.h
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@ -77,7 +77,7 @@
/**
* @brief ADC1 driver enable switch.
* @details If set to @p TRUE the support for ADC1 is included.
* @note The default is @p TRUE.
* @note The default is @p FALSE.
*/
#if !defined(STM32_ADC_USE_ADC1) || defined(__DOXYGEN__)
#define STM32_ADC_USE_ADC1 FALSE

4
os/hal/platforms/STM32F0xx/hal_lld.h
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@ -234,6 +234,10 @@
#define STM32_ADC3_DMA_MSK 0x00000000
#define STM32_ADC3_DMA_CHN 0x00000000
#define STM32_HAS_ADC4 FALSE
#define STM32_ADC4_DMA_MSK 0x00000000
#define STM32_ADC4_DMA_CHN 0x00000000
/* CAN attributes.*/
#define STM32_HAS_CAN1 FALSE
#define STM32_HAS_CAN2 FALSE

1
os/hal/platforms/STM32F1xx/hal_lld_f100.h
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@ -339,6 +339,7 @@
#define STM32_HAS_ADC1 TRUE
#define STM32_HAS_ADC2 FALSE
#define STM32_HAS_ADC3 FALSE
#define STM32_HAS_ADC4 FALSE
/* CAN attributes.*/
#define STM32_HAS_CAN1 FALSE

1
os/hal/platforms/STM32F1xx/hal_lld_f103.h
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@ -205,6 +205,7 @@
#define STM32_HAS_ADC1 TRUE
#define STM32_HAS_ADC2 TRUE
#define STM32_HAS_ADC3 FALSE
#define STM32_HAS_ADC4 FALSE
/* CAN attributes.*/
#define STM32_HAS_CAN1 TRUE

1
os/hal/platforms/STM32F1xx/hal_lld_f105_f107.h
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@ -222,6 +222,7 @@
#define STM32_HAS_ADC1 TRUE
#define STM32_HAS_ADC2 TRUE
#define STM32_HAS_ADC3 FALSE
#define STM32_HAS_ADC4 FALSE
/* CAN attributes.*/
#define STM32_HAS_CAN1 TRUE

298
os/hal/platforms/STM32F3xx/adc_lld.c Normal file
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@ -0,0 +1,298 @@
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file STM32F3xx/adc_lld.c
* @brief STM32F3xx ADC subsystem low level driver source.
*
* @addtogroup ADC
* @{
*/
#include "ch.h"
#include "hal.h"
#if HAL_USE_ADC || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/** @brief ADC1 driver identifier.*/
#if STM32_ADC_USE_ADC1 || defined(__DOXYGEN__)
ADCDriver ADCD1;
#endif
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/**
* @brief Stops an ongoing conversion, if any.
*
* @param[in] adc pointer to the ADC registers block
*/
static void adc_lld_stop_adc(ADC_TypeDef *adc) {
if (adc->CR & ADC_CR_ADSTART) {
adc->CR |= ADC_CR_ADSTP;
while (adc->CR & ADC_CR_ADSTP)
;
}
}
/**
* @brief ADC DMA ISR service routine.
*
* @param[in] adcp pointer to the @p ADCDriver object
* @param[in] flags pre-shifted content of the ISR register
*/
static void adc_lld_serve_rx_interrupt(ADCDriver *adcp, uint32_t flags) {
/* DMA errors handling.*/
if ((flags & (STM32_DMA_ISR_TEIF | STM32_DMA_ISR_DMEIF)) != 0) {
/* DMA, this could help only if the DMA tries to access an unmapped
address space or violates alignment rules.*/
_adc_isr_error_code(adcp, ADC_ERR_DMAFAILURE);
}
else {
/* It is possible that the conversion group has already be reset by the
ADC error handler, in this case this interrupt is spurious.*/
if (adcp->grpp != NULL) {
if ((flags & STM32_DMA_ISR_HTIF) != 0) {
/* Half transfer processing.*/
_adc_isr_half_code(adcp);
}
if ((flags & STM32_DMA_ISR_TCIF) != 0) {
/* Transfer complete processing.*/
_adc_isr_full_code(adcp);
}
}
}
}
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
#if STM32_ADC_USE_ADC1 || defined(__DOXYGEN__)
/**
* @brief ADC interrupt handler.
*
* @isr
*/
CH_IRQ_HANDLER(ADC1_COMP_IRQHandler) {
uint32_t isr;
CH_IRQ_PROLOGUE();
isr = ADC1->ISR;
ADC1->ISR = isr;
/* It could be a spurious interrupt caused by overflows after DMA disabling,
just ignore it in this case.*/
if (ADCD1.grpp != NULL) {
/* Note, an overflow may occur after the conversion ended before the driver
is able to stop the ADC, this is why the DMA channel is checked too.*/
if ((isr & ADC_ISR_OVR) &&
(dmaStreamGetTransactionSize(ADCD1.dmastp) > 0)) {
/* ADC overflow condition, this could happen only if the DMA is unable
to read data fast enough.*/
_adc_isr_error_code(&ADCD1, ADC_ERR_OVERFLOW);
}
if (isr & ADC_ISR_AWD) {
/* Analog watchdog error.*/
_adc_isr_error_code(&ADCD1, ADC_ERR_AWD);
}
}
CH_IRQ_EPILOGUE();
}
#endif
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief Low level ADC driver initialization.
*
* @notapi
*/
void adc_lld_init(void) {
#if STM32_ADC_USE_ADC1
/* Driver initialization.*/
adcObjectInit(&ADCD1);
ADCD1.adc = ADC1;
ADCD1.dmastp = STM32_DMA1_STREAM1;
ADCD1.dmamode = STM32_DMA_CR_PL(STM32_ADC_ADC1_DMA_PRIORITY) |
STM32_DMA_CR_DIR_P2M |
STM32_DMA_CR_MSIZE_HWORD | STM32_DMA_CR_PSIZE_HWORD |
STM32_DMA_CR_MINC | STM32_DMA_CR_TCIE |
STM32_DMA_CR_DMEIE | STM32_DMA_CR_TEIE;
#endif
/* The shared vector is initialized on driver initialization and never
disabled.*/
nvicEnableVector(ADC1_COMP_IRQn,
CORTEX_PRIORITY_MASK(STM32_ADC_IRQ_PRIORITY));
/* Calibration procedure.*/
rccEnableADC1(FALSE);
chDbgAssert(ADC1->CR == 0, "adc_lld_init(), #1", "invalid register state");
ADC1->CR |= ADC_CR_ADCAL;
while (ADC1->CR & ADC_CR_ADCAL)
;
rccDisableADC1(FALSE);
}
/**
* @brief Configures and activates the ADC peripheral.
*
* @param[in] adcp pointer to the @p ADCDriver object
*
* @notapi
*/
void adc_lld_start(ADCDriver *adcp) {
/* If in stopped state then enables the ADC and DMA clocks.*/
if (adcp->state == ADC_STOP) {
#if STM32_ADC_USE_ADC1
if (&ADCD1 == adcp) {
bool_t b;
b = dmaStreamAllocate(adcp->dmastp,
STM32_ADC_ADC1_DMA_IRQ_PRIORITY,
(stm32_dmaisr_t)adc_lld_serve_rx_interrupt,
(void *)adcp);
chDbgAssert(!b, "adc_lld_start(), #1", "stream already allocated");
dmaStreamSetPeripheral(adcp->dmastp, &ADC1->DR);
rccEnableADC1(FALSE);
#if STM32_ADCSW == STM32_ADCSW_HSI14
/* Clock from HSI14, no need for jitter removal.*/
ADC1->CFGR2 = 0x00001000;
#else
#if STM32_ADCPRE == STM32_ADCPRE_DIV2
ADC1->CFGR2 = 0x00001000 | ADC_CFGR2_JITOFFDIV2;
#else
ADC1->CFGR2 = 0x00001000 | ADC_CFGR2_JITOFFDIV4;
#endif
#endif
}
#endif /* STM32_ADC_USE_ADC1 */
/* ADC initial setup, starting the analog part here in order to reduce
the latency when starting a conversion.*/
adcp->adc->CR = ADC_CR_ADEN;
while (!(adcp->adc->ISR & ADC_ISR_ADRDY))
;
}
}
/**
* @brief Deactivates the ADC peripheral.
*
* @param[in] adcp pointer to the @p ADCDriver object
*
* @notapi
*/
void adc_lld_stop(ADCDriver *adcp) {
/* If in ready state then disables the ADC clock and analog part.*/
if (adcp->state == ADC_READY) {
dmaStreamRelease(adcp->dmastp);
/* Disabling ADC.*/
if (adcp->adc->CR & ADC_CR_ADEN) {
adc_lld_stop_adc(adcp->adc);
adcp->adc->CR |= ADC_CR_ADDIS;
while (adcp->adc->CR & ADC_CR_ADDIS)
;
}
#if STM32_ADC_USE_ADC1
if (&ADCD1 == adcp)
rccDisableADC1(FALSE);
#endif
}
}
/**
* @brief Starts an ADC conversion.
*
* @param[in] adcp pointer to the @p ADCDriver object
*
* @notapi
*/
void adc_lld_start_conversion(ADCDriver *adcp) {
uint32_t mode;
const ADCConversionGroup *grpp = adcp->grpp;
/* DMA setup.*/
mode = adcp->dmamode;
if (grpp->circular) {
mode |= STM32_DMA_CR_CIRC;
}
if (adcp->depth > 1) {
/* If the buffer depth is greater than one then the half transfer interrupt
interrupt is enabled in order to allows streaming processing.*/
mode |= STM32_DMA_CR_HTIE;
}
dmaStreamSetMemory0(adcp->dmastp, adcp->samples);
dmaStreamSetTransactionSize(adcp->dmastp, (uint32_t)grpp->num_channels *
(uint32_t)adcp->depth);
dmaStreamSetMode(adcp->dmastp, mode);
dmaStreamEnable(adcp->dmastp);
/* ADC setup, if it is defined a callback for the analog watch dog then it
is enabled.*/
adcp->adc->ISR = adcp->adc->ISR;
adcp->adc->IER = ADC_IER_OVRIE | ADC_IER_AWDIE;
adcp->adc->TR = grpp->tr;
adcp->adc->SMPR = grpp->smpr;
adcp->adc->CHSELR = grpp->chselr;
/* ADC configuration and start.*/
adcp->adc->CFGR1 = grpp->cfgr1 | ADC_CFGR1_CONT | ADC_CFGR1_DMACFG |
ADC_CFGR1_DMAEN;
adcp->adc->CR |= ADC_CR_ADSTART;
}
/**
* @brief Stops an ongoing conversion.
*
* @param[in] adcp pointer to the @p ADCDriver object
*
* @notapi
*/
void adc_lld_stop_conversion(ADCDriver *adcp) {
dmaStreamDisable(adcp->dmastp);
adc_lld_stop_adc(adcp->adc);
}
#endif /* HAL_USE_ADC */
/** @} */

451
os/hal/platforms/STM32F3xx/adc_lld.h Normal file
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@ -0,0 +1,451 @@
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file STM32F3xx/adc_lld.h
* @brief STM32F3xx ADC subsystem low level driver header.
*
* @addtogroup ADC
* @{
*/
#ifndef _ADC_LLD_H_
#define _ADC_LLD_H_
#if HAL_USE_ADC || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/**
* @name Sampling rates
* @{
*/
#define ADC_SMPR_SMP_1P5 0 /**< @brief 14 cycles conversion time */
#define ADC_SMPR_SMP_2P5 1 /**< @brief 15 cycles conversion time. */
#define ADC_SMPR_SMP_4P5 2 /**< @brief 17 cycles conversion time. */
#define ADC_SMPR_SMP_7P5 3 /**< @brief 20 cycles conversion time. */
#define ADC_SMPR_SMP_19P5 4 /**< @brief 32 cycles conversion time. */
#define ADC_SMPR_SMP_61P5 5 /**< @brief 74 cycles conversion time. */
#define ADC_SMPR_SMP_181P5 6 /**< @brief 194 cycles conversion time. */
#define ADC_SMPR_SMP_601P5 7 /**< @brief 614 cycles conversion time. */
/** @} */
/**
* @name Resolution
* @{
*/
#define ADC_CFGR1_RES_12BIT (0 << 3)
#define ADC_CFGR1_RES_10BIT (1 << 3)
#define ADC_CFGR1_RES_8BIT (2 << 3)
#define ADC_CFGR1_RES_6BIT (3 << 3)
/** @} */
/**
* @name Threashold register initializer
* @{
*/
#define ADC_TR(low, high) (((uint32_t)(high) << 16) | (uint32_t)(low))
/** @} */
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @name Configuration options
* @{
*/
/**
* @brief ADC1 driver enable switch.
* @details If set to @p TRUE the support for ADC1 is included.
* @note The default is @p FALSE.
*/
#if !defined(STM32_ADC_USE_ADC1) || defined(__DOXYGEN__)
#define STM32_ADC_USE_ADC1 FALSE
#endif
/**
* @brief ADC1+ADC2 driver enable switch.
* @details If set to @p TRUE the support for ADC1+ADC2 is included.
* @note The default is @p FALSE.
*/
#if !defined(STM32_ADC_USE_ADC12) || defined(__DOXYGEN__)
#define STM32_ADC_USE_ADC12 FALSE
#endif
/**
* @brief ADC3 driver enable switch.
* @details If set to @p TRUE the support for ADC3 is included.
* @note The default is @p FALSE.
*/
#if !defined(STM32_ADC_USE_ADC3) || defined(__DOXYGEN__)
#define STM32_ADC_USE_ADC3 FALSE
#endif
/**
* @brief ADC3+ADC4 driver enable switch.
* @details If set to @p TRUE the support for ADC3+ADC4 is included.
* @note The default is @p FALSE.
*/
#if !defined(STM32_ADC_USE_ADC34) || defined(__DOXYGEN__)
#define STM32_ADC_USE_ADC34 FALSE
#endif
/**
* @brief ADC1/ADC2 DMA priority (0..3|lowest..highest).
*/
#if !defined(STM32_ADC_ADC12_DMA_PRIORITY) || defined(__DOXYGEN__)
#define STM32_ADC_ADC12_DMA_PRIORITY 2
#endif
/**
* @brief ADC3/ADC4 DMA priority (0..3|lowest..highest).
*/
#if !defined(STM32_ADC_ADC34_DMA_PRIORITY) || defined(__DOXYGEN__)
#define STM32_ADC_ADC34_DMA_PRIORITY 2
#endif
/**
* @brief ADC1/ADC2 interrupt priority level setting.
*/
#if !defined(STM32_ADC_ADC12_IRQ_PRIORITY) || defined(__DOXYGEN__)
#define STM32_ADC_ADC12_IRQ_PRIORITY 2
#endif
/**
* @brief ADC3/ADC4 interrupt priority level setting.
*/
#if !defined(STM32_ADC34_IRQ_PRIORITY) || defined(__DOXYGEN__)
#define STM32_ADC_ADC34_IRQ_PRIORITY 2
#endif
/**
* @brief ADC1/ADC2 DMA interrupt priority level setting.
*/
#if !defined(STM32_ADC_ADC12_DMA_IRQ_PRIORITY) || defined(__DOXYGEN__)
#define STM32_ADC_ADC12_DMA_IRQ_PRIORITY 2
#endif
/**
* @brief ADC3/ADC4 DMA interrupt priority level setting.
*/
#if !defined(STM32_ADC_ADC34_DMA_IRQ_PRIORITY) || defined(__DOXYGEN__)
#define STM32_ADC_ADC34_DMA_IRQ_PRIORITY 2
#endif
/** @} */
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
#if STM32_ADC_USE_ADC1 && !STM32_HAS_ADC1
#error "ADC1 not present in the selected device"
#endif
#if STM32_ADC_USE_ADC12 && (!STM32_HAS_ADC1 || !STM32_HAS_ADC2)
#error "ADC12 not present in the selected device"
#endif
#if STM32_ADC_USE_ADC3 && !STM32_HAS_ADC3
#error "ADC3 not present in the selected device"
#endif
#if STM32_ADC_USE_ADC34 && (!STM32_HAS_ADC3 || !STM32_HAS_ADC4)
#error "ADC34 not present in the selected device"
#endif
#if !STM32_ADC_USE_ADC1 || !STM32_ADC_USE_ADC12 || \
!STM32_ADC_USE_ADC3 || !STM32_ADC_USE_ADC34
#error "ADC driver activated but no ADC peripheral assigned"
#endif
#if STM32_ADC_USE_ADC1 && \
!CORTEX_IS_VALID_KERNEL_PRIORITY(STM32_ADC_ADC12_IRQ_PRIORITY)
#error "Invalid IRQ priority assigned to ADC1"
#endif
#if STM32_ADC_USE_ADC1 && \
!CORTEX_IS_VALID_KERNEL_PRIORITY(STM32_ADC_ADC12_DMA_IRQ_PRIORITY)
#error "Invalid IRQ priority assigned to ADC1 DMA"
#endif
#if STM32_ADC_USE_ADC1 && \
!STM32_DMA_IS_VALID_PRIORITY(STM32_ADC_ADC12_DMA_PRIORITY)
#error "Invalid DMA priority assigned to ADC1"
#endif
#if STM32_ADC_USE_ADC12 && \
!CORTEX_IS_VALID_KERNEL_PRIORITY(STM32_ADC_ADC12_IRQ_PRIORITY)
#error "Invalid IRQ priority assigned to ADC12"
#endif
#if STM32_ADC_USE_ADC12 && \
!CORTEX_IS_VALID_KERNEL_PRIORITY(STM32_ADC_ADC12_DMA_IRQ_PRIORITY)
#error "Invalid IRQ priority assigned to ADC12 DMA"
#endif
#if STM32_ADC_USE_ADC12 && \
!STM32_DMA_IS_VALID_PRIORITY(STM32_ADC_ADC12_DMA_PRIORITY)
#error "Invalid DMA priority assigned to ADC12"
#endif
#if STM32_ADC_USE_ADC3 && \
!CORTEX_IS_VALID_KERNEL_PRIORITY(STM32_ADC_ADC34_IRQ_PRIORITY)
#error "Invalid IRQ priority assigned to ADC3"
#endif
#if STM32_ADC_USE_ADC3 && \
!CORTEX_IS_VALID_KERNEL_PRIORITY(STM32_ADC_ADC34_DMA_IRQ_PRIORITY)
#error "Invalid IRQ priority assigned to ADC3 DMA"
#endif
#if STM32_ADC_USE_ADC3 && \
!STM32_DMA_IS_VALID_PRIORITY(STM32_ADC_ADC34_DMA_PRIORITY)
#error "Invalid DMA priority assigned to ADC3"
#endif
#if STM32_ADC_USE_ADC34 && \
!CORTEX_IS_VALID_KERNEL_PRIORITY(STM32_ADC_ADC34_IRQ_PRIORITY)
#error "Invalid IRQ priority assigned to ADC34"
#endif
#if STM32_ADC_USE_ADC34 && \
!CORTEX_IS_VALID_KERNEL_PRIORITY(STM32_ADC_ADC34_DMA_IRQ_PRIORITY)
#error "Invalid IRQ priority assigned to ADC34 DMA"
#endif
#if STM32_ADC_USE_ADC34 && \
!STM32_DMA_IS_VALID_PRIORITY(STM32_ADC_ADC34_DMA_PRIORITY)
#error "Invalid DMA priority assigned to ADC34"
#endif
#if !defined(STM32_DMA_REQUIRED)
#define STM32_DMA_REQUIRED
#endif
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief ADC sample data type.
*/
typedef uint16_t adcsample_t;
/**
* @brief Channels number in a conversion group.
*/
typedef uint16_t adc_channels_num_t;
/**
* @brief Possible ADC failure causes.
* @note Error codes are architecture dependent and should not relied
* upon.
*/
typedef enum {
ADC_ERR_DMAFAILURE = 0, /**< DMA operations failure. */
ADC_ERR_OVERFLOW = 1, /**< ADC overflow condition. */
ADC_ERR_AWD = 2 /**< Analog watchdog triggered. */
} adcerror_t;
/**
* @brief Type of a structure representing an ADC driver.
*/
typedef struct ADCDriver ADCDriver;
/**
* @brief ADC notification callback type.
*
* @param[in] adcp pointer to the @p ADCDriver object triggering the
* callback
* @param[in] buffer pointer to the most recent samples data
* @param[in] n number of buffer rows available starting from @p buffer
*/
typedef void (*adccallback_t)(ADCDriver *adcp, adcsample_t *buffer, size_t n);
/**
* @brief ADC error callback type.
*
* @param[in] adcp pointer to the @p ADCDriver object triggering the
* callback
* @param[in] err ADC error code
*/
typedef void (*adcerrorcallback_t)(ADCDriver *adcp, adcerror_t err);
/**
* @brief Conversion group configuration structure.
* @details This implementation-dependent structure describes a conversion
* operation.
* @note The use of this configuration structure requires knowledge of
* STM32 ADC cell registers interface, please refer to the STM32
* reference manual for details.
*/
typedef struct {
/**
* @brief Enables the circular buffer mode for the group.
*/
bool_t circular;
/**
* @brief Number of the analog channels belonging to the conversion group.
*/
adc_channels_num_t num_channels;
/**
* @brief Callback function associated to the group or @p NULL.
*/
adccallback_t end_cb;
/**
* @brief Error callback or @p NULL.
*/
adcerrorcallback_t error_cb;
/* End of the mandatory fields.*/
/**
* @brief ADC CFGR1 register initialization data.
*/
uint32_t cfgr1;
/**
* @brief ADC TR register initialization data.
*/
uint32_t tr;
/**
* @brief ADC SMPR register initialization data.
*/
uint32_t smpr;
/**
* @brief ADC CHSELR register initialization data.
* @details The number of bits at logic level one in this register must
* be equal to the number in the @p num_channels field.
*/
uint32_t chselr;
} ADCConversionGroup;
/**
* @brief Driver configuration structure.
* @note It could be empty on some architectures.
*/
typedef struct {
uint32_t dummy;
} ADCConfig;
/**
* @brief Structure representing an ADC driver.
*/
struct ADCDriver {
/**
* @brief Driver state.
*/
adcstate_t state;
/**
* @brief Current configuration data.
*/
const ADCConfig *config;
/**
* @brief Current samples buffer pointer or @p NULL.
*/
adcsample_t *samples;
/**
* @brief Current samples buffer depth or @p 0.
*/
size_t depth;
/**
* @brief Current conversion group pointer or @p NULL.
*/
const ADCConversionGroup *grpp;
#if ADC_USE_WAIT || defined(__DOXYGEN__)
/**
* @brief Waiting thread.
*/
Thread *thread;
#endif
#if ADC_USE_MUTUAL_EXCLUSION || defined(__DOXYGEN__)
#if CH_USE_MUTEXES || defined(__DOXYGEN__)
/**
* @brief Mutex protecting the peripheral.
*/
Mutex mutex;
#elif CH_USE_SEMAPHORES
Semaphore semaphore;
#endif
#endif /* ADC_USE_MUTUAL_EXCLUSION */
#if defined(ADC_DRIVER_EXT_FIELDS)
ADC_DRIVER_EXT_FIELDS
#endif
/* End of the mandatory fields.*/
/**
* @brief Pointer to the ADCx registers block.
*/
ADC_TypeDef *adc;
/**
* @brief Pointer to associated SMA channel.
*/
const stm32_dma_stream_t *dmastp;
/**
* @brief DMA mode bit mask.
*/
uint32_t dmamode;
};
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/**
* @brief Changes the value of the ADC CCR registers.
* @details Use this function in order to enable or disable the internal
* analog sources. See the documentation in the STM32F3xx Reference
* Manual.
*/
#define adcSTM32SetCCR(adc, ccr) ((adc)->CCR = (ccr))
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#if STM32_ADC_USE_ADC1 && !defined(__DOXYGEN__)
extern ADCDriver ADCD1;
#endif
#if STM32_ADC_USE_ADC12 && !defined(__DOXYGEN__)
extern ADCDriver ADCD12;
#endif
#if STM32_ADC_USE_ADC3 && !defined(__DOXYGEN__)
extern ADCDriver ADCD3;
#endif
#if STM32_ADC_USE_ADC34 && !defined(__DOXYGEN__)
extern ADCDriver ADCD34;
#endif
#ifdef __cplusplus
extern "C" {
#endif
void adc_lld_init(void);
void adc_lld_start(ADCDriver *adcp);
void adc_lld_stop(ADCDriver *adcp);
void adc_lld_start_conversion(ADCDriver *adcp);
void adc_lld_stop_conversion(ADCDriver *adcp);
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_ADC */
#endif /* _ADC_LLD_H_ */
/** @} */

4
os/hal/platforms/STM32F4xx/hal_lld.h
View File

@ -307,6 +307,10 @@
STM32_DMA_STREAM_ID_MSK(2, 1))
#define STM32_ADC3_DMA_CHN 0x00000022
#define STM32_HAS_ADC4 FALSE
#define STM32_ADC4_DMA_MSK 0x00000000
#define STM32_ADC4_DMA_CHN 0x00000000
/* CAN attributes.*/
#define STM32_HAS_CAN1 TRUE
#define STM32_HAS_CAN2 TRUE

1
os/hal/platforms/STM32L1xx/hal_lld.h
View File

@ -182,6 +182,7 @@
#define STM32_HAS_ADC1 TRUE
#define STM32_HAS_ADC2 FALSE
#define STM32_HAS_ADC3 FALSE
#define STM32_HAS_ADC4 FALSE
/* CAN attributes.*/
#define STM32_HAS_CAN1 FALSE