/**
* @brief Configures and activates the EICU peripheral.
*
* @param[in] eicup Pointer to the @p EICUDriver object
*
* @notapi
*/
void eicu_lld_start(EICUDriver *eicup) {
uint32_t psc;
size_t ch;
osalDbgAssert((eicup->config->iccfgp[0] != NULL) ||
(eicup->config->iccfgp[1] != NULL) ||
(eicup->config->iccfgp[2] != NULL) ||
(eicup->config->iccfgp[3] != NULL),
"invalid input configuration");
if (eicup->state == EICU_STOP) {
/* Clock activation and timer reset.*/
#if STM32_EICU_USE_TIM1
if (&EICUD1 == eicup) {
rccEnableTIM1(FALSE);
rccResetTIM1();
nvicEnableVector(STM32_TIM1_UP_NUMBER, STM32_EICU_TIM1_IRQ_PRIORITY);
nvicEnableVector(STM32_TIM1_CC_NUMBER, STM32_EICU_TIM1_IRQ_PRIORITY);
eicup->channels = 4;
#if defined(STM32_TIM1CLK)
eicup->clock = STM32_TIM1CLK;
#else
eicup->clock = STM32_TIMCLK2;
#endif
}
#endif
#if STM32_EICU_USE_TIM2
if (&EICUD2 == eicup) {
rccEnableTIM2(FALSE);
rccResetTIM2();
nvicEnableVector(STM32_TIM2_NUMBER, STM32_EICU_TIM2_IRQ_PRIORITY);
eicup->channels = 4;
eicup->clock = STM32_TIMCLK1;
}
#endif
#if STM32_EICU_USE_TIM3
if (&EICUD3 == eicup) {
rccEnableTIM3(FALSE);
rccResetTIM3();
nvicEnableVector(STM32_TIM3_NUMBER, STM32_EICU_TIM3_IRQ_PRIORITY);
eicup->channels = 4;
eicup->clock = STM32_TIMCLK1;
}
#endif
#if STM32_EICU_USE_TIM4
if (&EICUD4 == eicup) {
rccEnableTIM4(FALSE);
rccResetTIM4();
nvicEnableVector(STM32_TIM4_NUMBER, STM32_EICU_TIM4_IRQ_PRIORITY);
eicup->channels = 4;
eicup->clock = STM32_TIMCLK1;
}
#endif
#if STM32_EICU_USE_TIM5
if (&EICUD5 == eicup) {
rccEnableTIM5(FALSE);
rccResetTIM5();
nvicEnableVector(STM32_TIM5_NUMBER, STM32_EICU_TIM5_IRQ_PRIORITY);
eicup->channels = 4;
eicup->clock = STM32_TIMCLK1;
}
#endif
#if STM32_EICU_USE_TIM8
if (&EICUD8 == eicup) {
rccEnableTIM8(FALSE);
rccResetTIM8();
nvicEnableVector(STM32_TIM8_UP_NUMBER, STM32_EICU_TIM8_IRQ_PRIORITY);
nvicEnableVector(STM32_TIM8_CC_NUMBER, STM32_EICU_TIM8_IRQ_PRIORITY);
eicup->channels = 4;
#if defined(STM32_TIM8CLK)
eicup->clock = STM32_TIM8CLK;
#else
eicup->clock = STM32_TIMCLK2;
#endif
}
#endif
#if STM32_EICU_USE_TIM9
if (&EICUD9 == eicup) {
rccEnableTIM9(FALSE);
rccResetTIM9();
nvicEnableVector(STM32_TIM9_NUMBER, STM32_EICU_TIM9_IRQ_PRIORITY);
eicup->channels = 2;
eicup->clock = STM32_TIMCLK2;
}
#endif
#if STM32_EICU_USE_TIM12
if (&EICUD12 == eicup) {
rccEnableTIM12(FALSE);
rccResetTIM12();
nvicEnableVector(STM32_TIM12_NUMBER, STM32_EICU_TIM12_IRQ_PRIORITY);
eicup->channels = 2;
eicup->clock = STM32_TIMCLK1;
}
#endif
#if STM32_EICU_USE_TIM10
if (&EICUD10 == eicup) {
rccEnableTIM10(FALSE);
rccResetTIM10();
nvicEnableVector(STM32_TIM10_NUMBER, STM32_EICU_TIM10_IRQ_PRIORITY);
eicup->channels = 1;
eicup->clock = STM32_TIMCLK2;
}
#endif
#if STM32_EICU_USE_TIM11
if (&EICUD11 == eicup) {
rccEnableTIM11(FALSE);
rccResetTIM11();
nvicEnableVector(STM32_TIM11_NUMBER, STM32_EICU_TIM11_IRQ_PRIORITY);
eicup->channels = 1;
eicup->clock = STM32_TIMCLK2;
}
#endif
#if STM32_EICU_USE_TIM13
if (&EICUD13 == eicup) {
rccEnableTIM13(FALSE);
rccResetTIM13();
nvicEnableVector(STM32_TIM13_NUMBER, STM32_EICU_TIM13_IRQ_PRIORITY);
eicup->channels = 1;
eicup->clock = STM32_TIMCLK1;
}
#endif
#if STM32_EICU_USE_TIM14
if (&EICUD14 == eicup) {
rccEnableTIM14(FALSE);
rccResetTIM14();
nvicEnableVector(STM32_TIM14_NUMBER, STM32_EICU_TIM14_IRQ_PRIORITY);
eicup->channels = 1;
eicup->clock = STM32_TIMCLK1;
}
#endif
}
else {
/* Driver re-configuration scenario, it must be stopped first.*/
eicup->tim->CR1 = 0; /* Timer disabled. */
eicup->tim->DIER = eicup->config->dier &/* DMA-related DIER settings. */
~STM32_TIM_DIER_IRQ_MASK;
eicup->tim->SR = 0; /* Clear eventual pending IRQs. */
eicup->tim->CCR[0] = 0; /* Comparator 1 disabled. */
eicup->tim->CCR[1] = 0; /* Comparator 2 disabled. */
eicup->tim->CNT = 0; /* Counter reset to zero. */
}
/* Timer configuration.*/
psc = (eicup->clock / eicup->config->frequency) - 1;
chDbgAssert((psc <= 0xFFFF) &&
((psc + 1) * eicup->config->frequency) == eicup->clock,
"invalid frequency");
eicup->tim->PSC = (uint16_t)psc;
eicup->tim->ARR = (eicucnt_t)-1;
/* Detect width.*/
if (0xFFFFFFFF == eicup->tim->ARR)
eicup->width = EICU_WIDTH_32;
else if (0xFFFF == eicup->tim->ARR)
eicup->width = EICU_WIDTH_16;
else
osalSysHalt("Unsupported width");
/* Reset registers */
eicup->tim->SMCR = 0;
eicup->tim->CCMR1 = 0;
if (eicup->channels > 2)
eicup->tim->CCMR2 = 0;
/* clean channel structures and set pointers to channel configs */
for (ch=0; ch<EICU_CHANNEL_ENUM_END; ch++) {
eicup->channel[ch].last_active = 0;
eicup->channel[ch].last_idle = 0;
eicup->channel[ch].config = eicup->config->iccfgp[ch];
eicup->channel[ch].state = EICU_CH_IDLE;
}
/* TIM9 and TIM12 have only 2 channels.*/
if (eicup->channels == 2) {
osalDbgCheck((eicup->config->iccfgp[2] == NULL) &&
(eicup->config->iccfgp[3] == NULL));
}
/* TIM10, TIM11, TIM13 and TIM14 have only 1 channel.*/
if (eicup->channels == 1) {
osalDbgCheck((eicup->config->iccfgp[1] == NULL) &&
(eicup->config->iccfgp[2] == NULL) &&
(eicup->config->iccfgp[3] == NULL));
}
start_channels(eicup);
}
/**
* @brief Configures and activates the GPT peripheral.
*
* @param[in] gptp pointer to the @p GPTDriver object
*
* @notapi
*/
void gpt_lld_start(GPTDriver *gptp) {
uint16_t psc;
if (gptp->state == GPT_STOP) {
/* Clock activation.*/
#if STM32_GPT_USE_TIM1
if (&GPTD1 == gptp) {
rccEnableTIM1(FALSE);
rccResetTIM1();
#if !defined(STM32_TIM1_SUPPRESS_ISR)
nvicEnableVector(STM32_TIM1_UP_NUMBER, STM32_GPT_TIM1_IRQ_PRIORITY);
#endif
#if defined(STM32_TIM1CLK)
gptp->clock = STM32_TIM1CLK;
#else
gptp->clock = STM32_TIMCLK2;
#endif
}
#endif
#if STM32_GPT_USE_TIM2
if (&GPTD2 == gptp) {
rccEnableTIM2(FALSE);
rccResetTIM2();
#if !defined(STM32_TIM2_SUPPRESS_ISR)
nvicEnableVector(STM32_TIM2_NUMBER, STM32_GPT_TIM2_IRQ_PRIORITY);
#endif
#if defined(STM32_TIM2CLK)
gptp->clock = STM32_TIM2CLK;
#else
gptp->clock = STM32_TIMCLK1;
#endif
}
#endif
#if STM32_GPT_USE_TIM3
if (&GPTD3 == gptp) {
rccEnableTIM3(FALSE);
rccResetTIM3();
#if !defined(STM32_TIM3_SUPPRESS_ISR)
nvicEnableVector(STM32_TIM3_NUMBER, STM32_GPT_TIM3_IRQ_PRIORITY);
#endif
#if defined(STM32_TIM3CLK)
gptp->clock = STM32_TIM3CLK;
#else
gptp->clock = STM32_TIMCLK1;
#endif
}
#endif
#if STM32_GPT_USE_TIM4
if (&GPTD4 == gptp) {
rccEnableTIM4(FALSE);
rccResetTIM4();
#if !defined(STM32_TIM4_SUPPRESS_ISR)
nvicEnableVector(STM32_TIM4_NUMBER, STM32_GPT_TIM4_IRQ_PRIORITY);
#endif
#if defined(STM32_TIM4CLK)
gptp->clock = STM32_TIM4CLK;
#else
gptp->clock = STM32_TIMCLK1;
#endif
}
#endif
#if STM32_GPT_USE_TIM5
if (&GPTD5 == gptp) {
rccEnableTIM5(FALSE);
rccResetTIM5();
#if !defined(STM32_TIM5_SUPPRESS_ISR)
nvicEnableVector(STM32_TIM5_NUMBER, STM32_GPT_TIM5_IRQ_PRIORITY);
#endif
#if defined(STM32_TIM5CLK)
gptp->clock = STM32_TIM5CLK;
#else
gptp->clock = STM32_TIMCLK1;
#endif
}
#endif
#if STM32_GPT_USE_TIM6
if (&GPTD6 == gptp) {
rccEnableTIM6(FALSE);
rccResetTIM6();
#if !defined(STM32_TIM6_SUPPRESS_ISR)
nvicEnableVector(STM32_TIM6_NUMBER, STM32_GPT_TIM6_IRQ_PRIORITY);
#endif
#if defined(STM32_TIM6CLK)
gptp->clock = STM32_TIM6CLK;
#else
gptp->clock = STM32_TIMCLK1;
#endif
}
#endif
#if STM32_GPT_USE_TIM7
if (&GPTD7 == gptp) {
rccEnableTIM7(FALSE);
rccResetTIM7();
#if !defined(STM32_TIM7_SUPPRESS_ISR)
nvicEnableVector(STM32_TIM7_NUMBER, STM32_GPT_TIM7_IRQ_PRIORITY);
#endif
#if defined(STM32_TIM7CLK)
gptp->clock = STM32_TIM7CLK;
#else
gptp->clock = STM32_TIMCLK1;
#endif
}
#endif
#if STM32_GPT_USE_TIM8
if (&GPTD8 == gptp) {
rccEnableTIM8(FALSE);
rccResetTIM8();
#if !defined(STM32_TIM8_SUPPRESS_ISR)
nvicEnableVector(STM32_TIM8_UP_NUMBER, STM32_GPT_TIM8_IRQ_PRIORITY);
#endif
#if defined(STM32_TIM8CLK)
gptp->clock = STM32_TIM8CLK;
#else
gptp->clock = STM32_TIMCLK2;
#endif
}
#endif
#if STM32_GPT_USE_TIM9
if (&GPTD9 == gptp) {
rccEnableTIM9(FALSE);
rccResetTIM9();
#if !defined(STM32_TIM9_SUPPRESS_ISR)
nvicEnableVector(STM32_TIM9_NUMBER, STM32_GPT_TIM9_IRQ_PRIORITY);
#endif
#if defined(STM32_TIM9CLK)
gptp->clock = STM32_TIM9CLK;
#else
gptp->clock = STM32_TIMCLK2;
#endif
}
#endif
#if STM32_GPT_USE_TIM11
if (&GPTD11 == gptp) {
rccEnableTIM11(FALSE);
rccResetTIM11();
#if !defined(STM32_TIM11_SUPPRESS_ISR)
nvicEnableVector(STM32_TIM11_NUMBER, STM32_GPT_TIM11_IRQ_PRIORITY);
#endif
#if defined(STM32_TIM11CLK)
gptp->clock = STM32_TIM11CLK;
#else
gptp->clock = STM32_TIMCLK2;
#endif
}
#endif
#if STM32_GPT_USE_TIM12
if (&GPTD12 == gptp) {
rccEnableTIM12(FALSE);
rccResetTIM12();
#if !defined(STM32_TIM12_SUPPRESS_ISR)
nvicEnableVector(STM32_TIM12_NUMBER, STM32_GPT_TIM12_IRQ_PRIORITY);
#endif
#if defined(STM32_TIM12CLK)
gptp->clock = STM32_TIM12CLK;
#else
gptp->clock = STM32_TIMCLK1;
#endif
}
#endif
#if STM32_GPT_USE_TIM14
if (&GPTD14 == gptp) {
rccEnableTIM14(FALSE);
rccResetTIM14();
#if !defined(STM32_TIM14_SUPPRESS_ISR)
nvicEnableVector(STM32_TIM14_NUMBER, STM32_GPT_TIM14_IRQ_PRIORITY);
#endif
#if defined(STM32_TIM14CLK)
gptp->clock = STM32_TIM14CLK;
#else
gptp->clock = STM32_TIMCLK1;
#endif
}
#endif
}
/* Prescaler value calculation.*/
psc = (uint16_t)((gptp->clock / gptp->config->frequency) - 1);
osalDbgAssert(((uint32_t)(psc + 1) * gptp->config->frequency) == gptp->clock,
"invalid frequency");
/* Timer configuration.*/
gptp->tim->CR1 = 0; /* Initially stopped. */
gptp->tim->CR2 = gptp->config->cr2;
gptp->tim->PSC = psc; /* Prescaler value. */
gptp->tim->SR = 0; /* Clear pending IRQs. */
gptp->tim->DIER = gptp->config->dier & /* DMA-related DIER bits. */
~STM32_TIM_DIER_IRQ_MASK;
}
/**
* @brief Configures and activates the GPT peripheral.
*
* @param[in] gptp pointer to the @p GPTDriver object
*
* @notapi
*/
void gpt_lld_start(GPTDriver *gptp) {
uint16_t psc;
if (gptp->state == GPT_STOP) {
/* Clock activation.*/
#if STM32_GPT_USE_TIM1
if (&GPTD1 == gptp) {
rccEnableTIM1(FALSE);
rccResetTIM1();
nvicEnableVector(STM32_TIM1_UP_NUMBER,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM1_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK2;
}
#endif
#if STM32_GPT_USE_TIM2
if (&GPTD2 == gptp) {
rccEnableTIM2(FALSE);
rccResetTIM2();
nvicEnableVector(STM32_TIM2_NUMBER,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM2_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK1;
}
#endif
#if STM32_GPT_USE_TIM3
if (&GPTD3 == gptp) {
rccEnableTIM3(FALSE);
rccResetTIM3();
nvicEnableVector(STM32_TIM3_NUMBER,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM3_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK1;
}
#endif
#if STM32_GPT_USE_TIM4
if (&GPTD4 == gptp) {
rccEnableTIM4(FALSE);
rccResetTIM4();
nvicEnableVector(STM32_TIM4_NUMBER,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM4_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK1;
}
#endif
#if STM32_GPT_USE_TIM5
if (&GPTD5 == gptp) {
rccEnableTIM5(FALSE);
rccResetTIM5();
nvicEnableVector(STM32_TIM5_NUMBER,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM5_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK1;
}
#endif
#if STM32_GPT_USE_TIM6
if (&GPTD6 == gptp) {
rccEnableTIM6(FALSE);
rccResetTIM6();
nvicEnableVector(STM32_TIM6_NUMBER,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM6_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK1;
}
#endif
#if STM32_GPT_USE_TIM7
if (&GPTD7 == gptp) {
rccEnableTIM7(FALSE);
rccResetTIM7();
nvicEnableVector(STM32_TIM7_NUMBER,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM7_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK1;
}
#endif
#if STM32_GPT_USE_TIM8
if (&GPTD8 == gptp) {
rccEnableTIM8(FALSE);
rccResetTIM8();
nvicEnableVector(STM32_TIM8_UP_NUMBER,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM8_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK2;
}
#endif
#if STM32_GPT_USE_TIM9
if (&GPTD9 == gptp) {
rccEnableTIM9(FALSE);
rccResetTIM9();
nvicEnableVector(STM32_TIM9_NUMBER,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM9_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK2;
}
#endif
#if STM32_GPT_USE_TIM11
if (&GPTD11 == gptp) {
rccEnableTIM11(FALSE);
rccResetTIM11();
nvicEnableVector(STM32_TIM11_NUMBER,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM11_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK2;
}
#endif
#if STM32_GPT_USE_TIM12
if (&GPTD12 == gptp) {
rccEnableTIM12(FALSE);
rccResetTIM12();
nvicEnableVector(STM32_TIM12_NUMBER,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM12_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK1;
}
#endif
#if STM32_GPT_USE_TIM14
if (&GPTD14 == gptp) {
rccEnableTIM14(FALSE);
rccResetTIM14();
nvicEnableVector(STM32_TIM14_NUMBER,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM14_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK1;
}
#endif
}
/* Prescaler value calculation.*/
psc = (uint16_t)((gptp->clock / gptp->config->frequency) - 1);
chDbgAssert(((uint32_t)(psc + 1) * gptp->config->frequency) == gptp->clock,
"gpt_lld_start(), #1", "invalid frequency");
/* Timer configuration.*/
gptp->tim->CR1 = 0; /* Initially stopped. */
gptp->tim->CR2 = TIM_CR2_CCDS; /* DMA on UE (if any). */
gptp->tim->PSC = psc; /* Prescaler value. */
gptp->tim->DIER = 0;
}