amiro-os / kernel / patches / Introduced-support-for-the-ADC-analog-watchdog.patch @ e1a164f4
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| 1 | e545e620 | Thomas Schöpping | From d5e13e540dec58ece6de3d246a166185418f3fd3 Mon Sep 17 00:00:00 2001
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| 2 | From: =?UTF-8?q?Thomas=20Sch=C3=B6pping?= <tschoepp@cit-ec.uni-bielefeld.de>
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| 3 | Date: Mon, 12 Jun 2017 17:27:13 +0200
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| 4 | Subject: [PATCH] Introduced support for the ADC analog watchdog (ADCv2 only).
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| 5 | |||
| 6 | ---
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| 7 | os/hal/ports/STM32/LLD/ADCv2/hal_adc_lld.c | 20 +++++++++++++++++--- |
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| 8 | os/hal/ports/STM32/LLD/ADCv2/hal_adc_lld.h | 21 ++++++++++++++++++++- |
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| 9 | 2 files changed, 37 insertions(+), 4 deletions(-) |
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| 10 | |||
| 11 | diff --git a/os/hal/ports/STM32/LLD/ADCv2/hal_adc_lld.c b/os/hal/ports/STM32/LLD/ADCv2/hal_adc_lld.c
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| 12 | index b2e651e..d5875ee 100644
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| 13 | --- a/os/hal/ports/STM32/LLD/ADCv2/hal_adc_lld.c
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| 14 | +++ b/os/hal/ports/STM32/LLD/ADCv2/hal_adc_lld.c
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| 15 | @@ -124,7 +124,11 @@ OSAL_IRQ_HANDLER(STM32_ADC_HANDLER) {
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| 16 | if (ADCD1.grpp != NULL) |
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| 17 | _adc_isr_error_code(&ADCD1, ADC_ERR_OVERFLOW); |
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| 18 | } |
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| 19 | - /* TODO: Add here analog watchdog handling.*/
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| 20 | + if (sr & ADC_SR_AWD) {
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| 21 | + if (ADCD1.grpp != NULL) {
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| 22 | + _adc_isr_error_code(&ADCD1, ADC_ERR_WATCHDOG);
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| 23 | + }
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| 24 | + }
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| 25 | #if defined(STM32_ADC_ADC1_IRQ_HOOK)
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| 26 | STM32_ADC_ADC1_IRQ_HOOK |
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| 27 | #endif
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| 28 | @@ -141,7 +145,11 @@ OSAL_IRQ_HANDLER(STM32_ADC_HANDLER) {
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| 29 | if (ADCD2.grpp != NULL) |
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| 30 | _adc_isr_error_code(&ADCD2, ADC_ERR_OVERFLOW); |
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| 31 | } |
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| 32 | - /* TODO: Add here analog watchdog handling.*/
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| 33 | + if (sr & ADC_SR_AWD) {
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| 34 | + if (ADCD2.grpp != NULL) {
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| 35 | + _adc_isr_error_code(&ADCD2, ADC_ERR_WATCHDOG);
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| 36 | + }
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| 37 | + }
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| 38 | #if defined(STM32_ADC_ADC2_IRQ_HOOK)
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| 39 | STM32_ADC_ADC2_IRQ_HOOK |
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| 40 | #endif
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| 41 | @@ -158,7 +166,11 @@ OSAL_IRQ_HANDLER(STM32_ADC_HANDLER) {
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| 42 | if (ADCD3.grpp != NULL) |
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| 43 | _adc_isr_error_code(&ADCD3, ADC_ERR_OVERFLOW); |
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| 44 | } |
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| 45 | - /* TODO: Add here analog watchdog handling.*/
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| 46 | + if (sr & ADC_SR_AWD) {
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| 47 | + if (ADCD3.grpp != NULL) {
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| 48 | + _adc_isr_error_code(&ADCD3, ADC_ERR_WATCHDOG);
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| 49 | + }
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| 50 | + }
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| 51 | #if defined(STM32_ADC_ADC3_IRQ_HOOK)
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| 52 | STM32_ADC_ADC3_IRQ_HOOK |
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| 53 | #endif
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| 54 | @@ -350,6 +362,8 @@ void adc_lld_start_conversion(ADCDriver *adcp) { |
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| 55 | adcp->adc->SR = 0;
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| 56 | adcp->adc->SMPR1 = grpp->smpr1; |
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| 57 | adcp->adc->SMPR2 = grpp->smpr2; |
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| 58 | + adcp->adc->HTR = grpp->htr;
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| 59 | + adcp->adc->LTR = grpp->ltr;
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| 60 | adcp->adc->SQR1 = grpp->sqr1 | ADC_SQR1_NUM_CH(grpp->num_channels); |
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| 61 | adcp->adc->SQR2 = grpp->sqr2; |
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| 62 | adcp->adc->SQR3 = grpp->sqr3; |
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| 63 | diff --git a/os/hal/ports/STM32/LLD/ADCv2/hal_adc_lld.h b/os/hal/ports/STM32/LLD/ADCv2/hal_adc_lld.h
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| 64 | index 13df506..fa266f0 100644
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| 65 | --- a/os/hal/ports/STM32/LLD/ADCv2/hal_adc_lld.h
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| 66 | +++ b/os/hal/ports/STM32/LLD/ADCv2/hal_adc_lld.h
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| 67 | @@ -313,7 +313,8 @@ typedef uint16_t adc_channels_num_t; |
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| 68 | */ |
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| 69 | typedef enum { |
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| 70 | ADC_ERR_DMAFAILURE = 0, /**< DMA operations failure. */ |
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| 71 | - ADC_ERR_OVERFLOW = 1 /**< ADC overflow condition. */
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| 72 | + ADC_ERR_OVERFLOW = 1, /**< ADC overflow condition. */
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| 73 | + ADC_ERR_WATCHDOG = 2 /**< ADC watchdog condition. */
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| 74 | } adcerror_t; |
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| 75 | |||
| 76 | /**
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| 77 | @@ -392,6 +393,16 @@ typedef struct { |
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| 78 | */ |
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| 79 | uint32_t smpr2; |
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| 80 | /**
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| 81 | + * @brief ADC watchdog high threshold register.
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| 82 | + * @details This field defines the high threshold of the analog watchdog.
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| 83 | + */
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| 84 | + uint16_t htr;
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| 85 | + /**
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| 86 | + * @brief ADC watchdog low threshold register.
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| 87 | + * @details This field defines the low threshold of the analog watchdog.
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| 88 | + */
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| 89 | + uint16_t ltr;
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| 90 | + /**
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| 91 | * @brief ADC SQR1 register initialization data. |
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| 92 | * @details Conversion group sequence 13...16 + sequence length. |
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| 93 | */ |
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| 94 | @@ -531,6 +542,14 @@ struct ADCDriver { |
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| 95 | #define ADC_SMPR1_SMP_VBAT(n) ((n) << 24) /**< @brief VBAT sampling time. */ |
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| 96 | /** @} */
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| 97 | |||
| 98 | +/**
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| 99 | + * @name Threshold settings helper macros
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| 100 | + * @{
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| 101 | + */
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| 102 | +#define ADC_HTR(n) ((n > ADC_HTR_HT) ? ADC_HTR_HT : n) /**< @brief High threshold limitation. */
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| 103 | +#define ADC_LTR(n) ((n > ADC_LTR_LT) ? ADC_LTR_LT : n) /**< @brief Low threshold limitation. */
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| 104 | +/** @} */
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| 105 | +
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| 106 | /*===========================================================================*/
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| 107 | /* External declarations. */
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| 108 | /*===========================================================================*/
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| 109 | --
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| 110 | 2.7.4
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