diff options
Diffstat (limited to 'nuttx/arch/arm/src/stm32/stm32_tim.c')
| -rw-r--r-- | nuttx/arch/arm/src/stm32/stm32_tim.c | 1020 |
1 files changed, 1020 insertions, 0 deletions
diff --git a/nuttx/arch/arm/src/stm32/stm32_tim.c b/nuttx/arch/arm/src/stm32/stm32_tim.c new file mode 100644 index 000000000..d19c69c03 --- /dev/null +++ b/nuttx/arch/arm/src/stm32/stm32_tim.c @@ -0,0 +1,1020 @@ +/************************************************************************************ + * arm/arm/src/stm32/stm32_tim.c + * + * Copyright (C) 2011 Uros Platise. All rights reserved. + * Author: Uros Platise <uros.platise@isotel.eu> + * + * With modifications and updates by: + * + * Copyright (C) 2011-2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ************************************************************************************/ + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include <nuttx/config.h> +#include <nuttx/arch.h> +#include <nuttx/irq.h> + +#include <sys/types.h> +#include <stdint.h> +#include <stdbool.h> +#include <semaphore.h> +#include <errno.h> +#include <debug.h> + +#include <arch/board/board.h> + +#include "chip.h" +#include "up_internal.h" +#include "up_arch.h" + +#include "stm32_internal.h" +#include "stm32_gpio.h" +#include "stm32_tim.h" + +/************************************************************************************ + * Private Types + ************************************************************************************/ +/* Configuration ********************************************************************/ +/* Timer devices may be used for different purposes. Such special purposes include: + * + * - To generate modulated outputs for such things as motor control. If CONFIG_STM32_TIMn + * is defined then the CONFIG_STM32_TIMn_PWM may also be defined to indicate that + * the timer is intended to be used for pulsed output modulation. + * + * - To control periodic ADC input sampling. If CONFIG_STM32_TIMn is defined then + * CONFIG_STM32_TIMn_ADC may also be defined to indicate that timer "n" is intended + * to be used for that purpose. + * + * - To control periodic DAC outputs. If CONFIG_STM32_TIMn is defined then + * CONFIG_STM32_TIMn_DAC may also be defined to indicate that timer "n" is intended + * to be used for that purpose. + * + * - To use a Quadrature Encoder. If CONFIG_STM32_TIMn is defined then + * CONFIG_STM32_TIMn_QE may also be defined to indicate that timer "n" is intended + * to be used for that purpose. + * + * In any of these cases, the timer will not be used by this timer module. + */ + +#if defined(CONFIG_STM32_TIM1_PWM) || defined (CONFIG_STM32_TIM1_ADC) || \ + defined(CONFIG_STM32_TIM1_DAC) || defined(CONFIG_STM32_TIM1_QE) +# undef CONFIG_STM32_TIM1 +#endif +#if defined(CONFIG_STM32_TIM2_PWM) || defined (CONFIG_STM32_TIM2_ADC) || \ + defined(CONFIG_STM32_TIM2_DAC) || defined(CONFIG_STM32_TIM2_QE) +# undef CONFIG_STM32_TIM2 +#endif +#if defined(CONFIG_STM32_TIM3_PWM) || defined (CONFIG_STM32_TIM3_ADC) || \ + defined(CONFIG_STM32_TIM3_DAC) || defined(CONFIG_STM32_TIM3_QE) +# undef CONFIG_STM32_TIM3 +#endif +#if defined(CONFIG_STM32_TIM4_PWM) || defined (CONFIG_STM32_TIM4_ADC) || \ + defined(CONFIG_STM32_TIM4_DAC) || defined(CONFIG_STM32_TIM4_QE) +# undef CONFIG_STM32_TIM4 +#endif +#if defined(CONFIG_STM32_TIM5_PWM) || defined (CONFIG_STM32_TIM5_ADC) || \ + defined(CONFIG_STM32_TIM5_DAC) || defined(CONFIG_STM32_TIM5_QE) +# undef CONFIG_STM32_TIM5 +#endif +#if defined(CONFIG_STM32_TIM6_PWM) || defined (CONFIG_STM32_TIM6_ADC) || \ + defined(CONFIG_STM32_TIM6_DAC) || defined(CONFIG_STM32_TIM6_QE) +# undef CONFIG_STM32_TIM6 +#endif +#if defined(CONFIG_STM32_TIM7_PWM) || defined (CONFIG_STM32_TIM7_ADC) || \ + defined(CONFIG_STM32_TIM7_DAC) || defined(CONFIG_STM32_TIM7_QE) +# undef CONFIG_STM32_TIM7 +#endif +#if defined(CONFIG_STM32_TIM8_PWM) || defined (CONFIG_STM32_TIM8_ADC) || \ + defined(CONFIG_STM32_TIM8_DAC) || defined(CONFIG_STM32_TIM8_QE) +# undef CONFIG_STM32_TIM8 +#endif +#if defined(CONFIG_STM32_TIM9_PWM) || defined (CONFIG_STM32_TIM9_ADC) || \ + defined(CONFIG_STM32_TIM9_DAC) || defined(CONFIG_STM32_TIM9_QE) +# undef CONFIG_STM32_TIM9 +#endif +#if defined(CONFIG_STM32_TIM10_PWM) || defined (CONFIG_STM32_TIM10_ADC) || \ + defined(CONFIG_STM32_TIM10_DAC) || defined(CONFIG_STM32_TIM10_QE) +# undef CONFIG_STM32_TIM10 +#endif +#if defined(CONFIG_STM32_TIM11_PWM) || defined (CONFIG_STM32_TIM11_ADC) || \ + defined(CONFIG_STM32_TIM11_DAC) || defined(CONFIG_STM32_TIM11_QE) +# undef CONFIG_STM32_TIM11 +#endif +#if defined(CONFIG_STM32_TIM12_PWM) || defined (CONFIG_STM32_TIM12_ADC) || \ + defined(CONFIG_STM32_TIM12_DAC) || defined(CONFIG_STM32_TIM12_QE) +# undef CONFIG_STM32_TIM12 +#endif +#if defined(CONFIG_STM32_TIM13_PWM) || defined (CONFIG_STM32_TIM13_ADC) || \ + defined(CONFIG_STM32_TIM13_DAC) || defined(CONFIG_STM32_TIM13_QE) +# undef CONFIG_STM32_TIM13 +#endif +#if defined(CONFIG_STM32_TIM14_PWM) || defined (CONFIG_STM32_TIM14_ADC) || \ + defined(CONFIG_STM32_TIM14_DAC) || defined(CONFIG_STM32_TIM14_QE) +# undef CONFIG_STM32_TIM14 +#endif + +/* This module then only compiles if there are enabled timers that are not intended for + * some other purpose. + */ + +#if defined(CONFIG_STM32_TIM1) || defined(CONFIG_STM32_TIM2) || defined(CONFIG_STM32_TIM3) || \ + defined(CONFIG_STM32_TIM4) || defined(CONFIG_STM32_TIM5) || defined(CONFIG_STM32_TIM6) || \ + defined(CONFIG_STM32_TIM7) || defined(CONFIG_STM32_TIM8) + +/************************************************************************************ + * Private Types + ************************************************************************************/ + +/* TIM Device Structure */ + +struct stm32_tim_priv_s +{ + struct stm32_tim_ops_s *ops; + stm32_tim_mode_t mode; + uint32_t base; /* TIMn base address */ +}; + +/************************************************************************************ + * Private Functions + ************************************************************************************/ + +/* Get a 16-bit register value by offset */ + +static inline uint16_t stm32_getreg16(FAR struct stm32_tim_dev_s *dev, uint8_t offset) +{ + return getreg16(((struct stm32_tim_priv_s *)dev)->base + offset); +} + +/* Put a 16-bit register value by offset */ + +static inline void stm32_putreg16(FAR struct stm32_tim_dev_s *dev, uint8_t offset, uint16_t value) +{ + putreg16(value, ((struct stm32_tim_priv_s *)dev)->base + offset); +} + +/* Modify a 16-bit register value by offset */ + +static inline void stm32_modifyreg16(FAR struct stm32_tim_dev_s *dev, uint8_t offset, uint16_t clearbits, uint16_t setbits) +{ + modifyreg16(((struct stm32_tim_priv_s *)dev)->base + offset, clearbits, setbits); +} + +/* Get a 32-bit register value by offset. This applies only for the STM32 F4 + * 32-bit registers (CNT, ARR, CRR1-4) in the 32-bit timers TIM2-5. + */ + +static inline uint32_t stm32_getreg32(FAR struct stm32_tim_dev_s *dev, uint8_t offset) +{ + return getreg32(((struct stm32_tim_priv_s *)dev)->base + offset); +} + +/* Put a 32-bit register value by offset. This applies only for the STM32 F4 + * 32-bit registers (CNT, ARR, CRR1-4) in the 32-bit timers TIM2-5. + */ + +static inline void stm32_putreg32(FAR struct stm32_tim_dev_s *dev, uint8_t offset, uint32_t value) +{ + putreg32(value, ((struct stm32_tim_priv_s *)dev)->base + offset); +} + +static void stm32_tim_reload_counter(FAR struct stm32_tim_dev_s *dev) +{ + uint16_t val = stm32_getreg16(dev, STM32_BTIM_EGR_OFFSET); + val |= ATIM_EGR_UG; + stm32_putreg16(dev, STM32_BTIM_EGR_OFFSET, val); +} + +static void stm32_tim_enable(FAR struct stm32_tim_dev_s *dev) +{ + uint16_t val = stm32_getreg16(dev, STM32_BTIM_CR1_OFFSET); + val |= ATIM_CR1_CEN; + stm32_tim_reload_counter(dev); + stm32_putreg16(dev, STM32_BTIM_CR1_OFFSET, val); +} + +static void stm32_tim_disable(FAR struct stm32_tim_dev_s *dev) +{ + uint16_t val = stm32_getreg16(dev, STM32_BTIM_CR1_OFFSET); + val &= ~ATIM_CR1_CEN; + stm32_putreg16(dev, STM32_BTIM_CR1_OFFSET, val); +} + +/* Reset timer into system default state, but do not affect output/input pins */ +static void stm32_tim_reset(FAR struct stm32_tim_dev_s *dev) +{ + ((struct stm32_tim_priv_s *)dev)->mode = STM32_TIM_MODE_DISABLED; + stm32_tim_disable(dev); +} + +static void stm32_tim_gpioconfig(uint32_t cfg, stm32_tim_channel_t mode) +{ + /* TODO: Add support for input capture and bipolar dual outputs for TIM8 */ + + if (mode & STM32_TIM_CH_MODE_MASK) + { + stm32_configgpio(cfg); + } + else + { + stm32_unconfiggpio(cfg); + } +} + +/************************************************************************************ + * Basic Functions + ************************************************************************************/ + +static int stm32_tim_setclock(FAR struct stm32_tim_dev_s *dev, uint32_t freq) +{ + int prescaler; + + ASSERT(dev); + + /* Disable Timer? */ + + if (freq == 0) + { + stm32_tim_disable(dev); + return 0; + } + +#if STM32_NATIM > 0 + if (((struct stm32_tim_priv_s *)dev)->base == STM32_TIM1_BASE || + ((struct stm32_tim_priv_s *)dev)->base == STM32_TIM8_BASE) + { + prescaler = STM32_TIM18_FREQUENCY / freq; + } + else +#endif + { + prescaler = STM32_TIM27_FREQUENCY / freq; + } + + /* We need to decrement value for '1', but only, if we are allowed to + * not to cause underflow. Check for overflow. + */ + + if (prescaler > 0) + { + prescaler--; + } + + if (prescaler > 0xffff) + { + prescaler = 0xffff; + } + + stm32_putreg16(dev, STM32_BTIM_PSC_OFFSET, prescaler); + stm32_tim_enable(dev); + + return prescaler; +} + +static void stm32_tim_setperiod(FAR struct stm32_tim_dev_s *dev, uint32_t period) +{ + ASSERT(dev); + stm32_putreg32(dev, STM32_BTIM_ARR_OFFSET, period); +} + +static int stm32_tim_setisr(FAR struct stm32_tim_dev_s *dev, int (*handler)(int irq, void *context), int source) +{ + int vectorno; + + ASSERT(dev); + ASSERT(source==0); + + switch (((struct stm32_tim_priv_s *)dev)->base) + { +#if CONFIG_STM32_TIM2 + case STM32_TIM2_BASE: + vectorno = STM32_IRQ_TIM2; + break; +#endif +#if CONFIG_STM32_TIM3 + case STM32_TIM3_BASE: + vectorno = STM32_IRQ_TIM3; + break; +#endif +#if CONFIG_STM32_TIM4 + case STM32_TIM4_BASE: + vectorno = STM32_IRQ_TIM4; + break; +#endif +#if CONFIG_STM32_TIM5 + case STM32_TIM5_BASE: + vectorno = STM32_IRQ_TIM5; + break; +#endif +#if STM32_NBTIM > 0 +#if CONFIG_STM32_TIM6 + case STM32_TIM6_BASE: + vectorno = STM32_IRQ_TIM6; + break; +#endif +#endif +#if STM32_NBTIM > 1 +#if CONFIG_STM32_TIM7 + case STM32_TIM7_BASE: + vectorno = STM32_IRQ_TIM7; + break; +#endif +#endif +#if STM32_NATIM > 0 + /* TODO: add support for multiple sources and callbacks */ +#if CONFIG_STM32_TIM1 + case STM32_TIM1_BASE: + vectorno = STM32_IRQ_TIM1UP; + break; +#endif +#if CONFIG_STM32_TIM8 + case STM32_TIM8_BASE: + vectorno = STM32_IRQ_TIM8UP; + break; +#endif +#endif + default: + return ERROR; + } + + /* Disable interrupt when callback is removed */ + + if (!handler) + { + up_disable_irq(vectorno); + irq_detach(vectorno); + return OK; + } + + /* Otherwise set callback and enable interrupt */ + + irq_attach(vectorno, handler); + up_enable_irq(vectorno); +//up_prioritize_irq(vectorno, NVIC_SYSH_PRIORITY_DEFAULT); + return OK; +} + +static void stm32_tim_enableint(FAR struct stm32_tim_dev_s *dev, int source) +{ + ASSERT(dev); + stm32_modifyreg16(dev, STM32_BTIM_DIER_OFFSET, 0, ATIM_DIER_UIE); +} + +static void stm32_tim_disableint(FAR struct stm32_tim_dev_s *dev, int source) +{ + ASSERT(dev); + stm32_modifyreg16(dev, STM32_BTIM_DIER_OFFSET, ATIM_DIER_UIE, 0); +} + +static void stm32_tim_ackint(FAR struct stm32_tim_dev_s *dev, int source) +{ + stm32_putreg16(dev, STM32_BTIM_SR_OFFSET, ~ATIM_SR_UIF); +} + +/************************************************************************************ + * General Functions + ************************************************************************************/ + +static int stm32_tim_setmode(FAR struct stm32_tim_dev_s *dev, stm32_tim_mode_t mode) +{ + uint16_t val = ATIM_CR1_CEN | ATIM_CR1_ARPE; + + ASSERT(dev); + + /* This function is not supported on basic timers. To enable or + * disable it, simply set its clock to valid frequency or zero. + */ + +#if STM32_NBTIM > 0 + if (((struct stm32_tim_priv_s *)dev)->base == STM32_TIM6_BASE +#endif +#if STM32_NBTIM > 1 + || ((struct stm32_tim_priv_s *)dev)->base == STM32_TIM7_BASE +#endif +#if STM32_NBTIM > 0 + ) + { + return ERROR; + } +#endif + + /* Decode operational modes */ + + switch (mode & STM32_TIM_MODE_MASK) + { + case STM32_TIM_MODE_DISABLED: + val = 0; + break; + + case STM32_TIM_MODE_DOWN: + val |= ATIM_CR1_DIR; + + case STM32_TIM_MODE_UP: + break; + + case STM32_TIM_MODE_UPDOWN: + val |= ATIM_CR1_CENTER1; + // Our default: Interrupts are generated on compare, when counting down + break; + + case STM32_TIM_MODE_PULSE: + val |= ATIM_CR1_OPM; + break; + + default: return ERROR; + } + + stm32_tim_reload_counter(dev); + stm32_putreg16(dev, STM32_BTIM_CR1_OFFSET, val); + +#if STM32_NATIM > 0 + /* Advanced registers require Main Output Enable */ + + if (((struct stm32_tim_priv_s *)dev)->base == STM32_TIM1_BASE || + ((struct stm32_tim_priv_s *)dev)->base == STM32_TIM8_BASE) + { + stm32_modifyreg16(dev, STM32_ATIM_BDTR_OFFSET, 0, ATIM_BDTR_MOE); + } +#endif + + return OK; +} + +static int stm32_tim_setchannel(FAR struct stm32_tim_dev_s *dev, uint8_t channel, stm32_tim_channel_t mode) +{ + uint16_t ccmr_val = 0; + uint16_t ccer_val = stm32_getreg16(dev, STM32_GTIM_CCER_OFFSET); + uint8_t ccmr_offset = STM32_GTIM_CCMR1_OFFSET; + + ASSERT(dev); + + /* Further we use range as 0..3; if channel=0 it will also overflow here */ + + if (--channel > 4) return ERROR; + + /* Assume that channel is disabled and polarity is active high */ + + ccer_val &= ~(3 << (channel << 2)); + + /* This function is not supported on basic timers. To enable or + * disable it, simply set its clock to valid frequency or zero. + */ + +#if STM32_NBTIM > 0 + if (((struct stm32_tim_priv_s *)dev)->base == STM32_TIM6_BASE +#endif +#if STM32_NBTIM > 1 + || ((struct stm32_tim_priv_s *)dev)->base == STM32_TIM7_BASE +#endif +#if STM32_NBTIM > 0 + ) + { + return ERROR; + } +#endif + + /* Decode configuration */ + + switch (mode & STM32_TIM_CH_MODE_MASK) + { + case STM32_TIM_CH_DISABLED: + break; + + case STM32_TIM_CH_OUTPWM: + ccmr_val = (ATIM_CCMR_MODE_PWM1 << ATIM_CCMR1_OC1M_SHIFT) + ATIM_CCMR1_OC1PE; + ccer_val |= ATIM_CCER_CC1E << (channel << 2); + break; + + default: + return ERROR; + } + + /* Set polarity */ + + if (mode & STM32_TIM_CH_POLARITY_NEG) + { + ccer_val |= ATIM_CCER_CC1P << (channel << 2); + } + + /* Define its position (shift) and get register offset */ + + if (channel & 1) + { + ccmr_val <<= 8; + } + + if (channel > 1) + { + ccmr_offset = STM32_GTIM_CCMR2_OFFSET; + } + + stm32_putreg16(dev, ccmr_offset, ccmr_val); + stm32_putreg16(dev, STM32_GTIM_CCER_OFFSET, ccer_val); + + /* set GPIO */ + + switch (((struct stm32_tim_priv_s *)dev)->base) + { +#if CONFIG_STM32_TIM2 + case STM32_TIM2_BASE: + switch (channel) + { +#if defined(GPIO_TIM2_CH1OUT) + case 0: + stm32_tim_gpioconfig(GPIO_TIM2_CH1OUT, mode); + break; +#endif +#if defined(GPIO_TIM2_CH2OUT) + case 1: + stm32_tim_gpioconfig(GPIO_TIM2_CH2OUT, mode); + break; +#endif +#if defined(GPIO_TIM2_CH3OUT) + case 2: + stm32_tim_gpioconfig(GPIO_TIM2_CH3OUT, mode); + break; +#endif +#if defined(GPIO_TIM2_CH4OUT) + case 3: + stm32_tim_gpioconfig(GPIO_TIM2_CH4OUT, mode); + break; +#endif + default: + return ERROR; + } + break; +#endif +#if CONFIG_STM32_TIM3 + case STM32_TIM3_BASE: + switch (channel) + { +#if defined(GPIO_TIM3_CH1OUT) + case 0: + stm32_tim_gpioconfig(GPIO_TIM3_CH1OUT, mode); + break; +#endif +#if defined(GPIO_TIM3_CH2OUT) + case 1: + stm32_tim_gpioconfig(GPIO_TIM3_CH2OUT, mode); + break; +#endif +#if defined(GPIO_TIM3_CH3OUT) + case 2: + stm32_tim_gpioconfig(GPIO_TIM3_CH3OUT, mode); + break; +#endif +#if defined(GPIO_TIM3_CH4OUT) + case 3: + stm32_tim_gpioconfig(GPIO_TIM3_CH4OUT, mode); + break; +#endif + default: + return ERROR; + } + break; +#endif +#if CONFIG_STM32_TIM4 + case STM32_TIM4_BASE: + switch (channel) + { +#if defined(GPIO_TIM4_CH1OUT) + case 0: + stm32_tim_gpioconfig(GPIO_TIM4_CH1OUT, mode); + break; +#endif +#if defined(GPIO_TIM4_CH2OUT) + case 1: + stm32_tim_gpioconfig(GPIO_TIM4_CH2OUT, mode); + break; +#endif +#if defined(GPIO_TIM4_CH3OUT) + case 2: + stm32_tim_gpioconfig(GPIO_TIM4_CH3OUT, mode); + break; +#endif +#if defined(GPIO_TIM4_CH4OUT) + case 3: + stm32_tim_gpioconfig(GPIO_TIM4_CH4OUT, mode); + break; +#endif + default: return ERROR; + } + break; +#endif +#if CONFIG_STM32_TIM5 + case STM32_TIM5_BASE: + switch (channel) + { +#if defined(GPIO_TIM5_CH1OUT) + case 0: + stm32_tim_gpioconfig(GPIO_TIM5_CH1OUT, mode); + break; +#endif +#if defined(GPIO_TIM5_CH2OUT) + case 1: + stm32_tim_gpioconfig(GPIO_TIM5_CH2OUT, mode); + break; +#endif +#if defined(GPIO_TIM5_CH3OUT) + case 2: + stm32_tim_gpioconfig(GPIO_TIM5_CH3OUT, mode); + break; +#endif +#if defined(GPIO_TIM5_CH4OUT) + case 3: + stm32_tim_gpioconfig(GPIO_TIM5_CH4OUT, mode); + break; +#endif + default: return ERROR; + } + break; +#endif + +#if STM32_NATIM > 0 +#if CONFIG_STM32_TIM1 + case STM32_TIM1_BASE: + switch (channel) + { +#if defined(GPIO_TIM1_CH1OUT) + case 0: + stm32_tim_gpioconfig(GPIO_TIM1_CH1OUT, mode); break; +#endif +#if defined(GPIO_TIM1_CH2OUT) + case 1: + stm32_tim_gpioconfig(GPIO_TIM1_CH2OUT, mode); break; +#endif +#if defined(GPIO_TIM1_CH3OUT) + case 2: + stm32_tim_gpioconfig(GPIO_TIM1_CH3OUT, mode); break; +#endif +#if defined(GPIO_TIM1_CH4OUT) + case 3: + stm32_tim_gpioconfig(GPIO_TIM1_CH4OUT, mode); break; +#endif + default: return ERROR; + } + break; +#endif +#if CONFIG_STM32_TIM8 + case STM32_TIM8_BASE: + switch (channel) + { +#if defined(GPIO_TIM8_CH1OUT) + case 0: + stm32_tim_gpioconfig(GPIO_TIM8_CH1OUT, mode); break; +#endif +#if defined(GPIO_TIM8_CH2OUT) + case 1: + stm32_tim_gpioconfig(GPIO_TIM8_CH2OUT, mode); break; +#endif +#if defined(GPIO_TIM8_CH3OUT) + case 2: + stm32_tim_gpioconfig(GPIO_TIM8_CH3OUT, mode); break; +#endif +#if defined(GPIO_TIM8_CH4OUT) + case 3: + stm32_tim_gpioconfig(GPIO_TIM8_CH4OUT, mode); break; +#endif + default: + return ERROR; + } + break; +#endif +#endif + default: + return ERROR; + } + + return OK; +} + +static int stm32_tim_setcompare(FAR struct stm32_tim_dev_s *dev, uint8_t channel, uint32_t compare) +{ + ASSERT(dev); + + switch (channel) + { + case 1: + stm32_putreg32(dev, STM32_GTIM_CCR1_OFFSET, compare); + break; + case 2: + stm32_putreg32(dev, STM32_GTIM_CCR2_OFFSET, compare); + break; + case 3: + stm32_putreg32(dev, STM32_GTIM_CCR3_OFFSET, compare); + break; + case 4: + stm32_putreg32(dev, STM32_GTIM_CCR4_OFFSET, compare); + break; + default: + return ERROR; + } + return OK; +} + +static int stm32_tim_getcapture(FAR struct stm32_tim_dev_s *dev, uint8_t channel) +{ + ASSERT(dev); + + switch (channel) + { + case 1: + return stm32_getreg32(dev, STM32_GTIM_CCR1_OFFSET); + case 2: + return stm32_getreg32(dev, STM32_GTIM_CCR2_OFFSET); + case 3: + return stm32_getreg32(dev, STM32_GTIM_CCR3_OFFSET); + case 4: + return stm32_getreg32(dev, STM32_GTIM_CCR4_OFFSET); + } + return ERROR; +} + +/************************************************************************************ + * Advanced Functions + ************************************************************************************/ + +/* TODO: Advanced functions for the STM32_ATIM */ + +/************************************************************************************ + * Device Structures, Instantiation + ************************************************************************************/ + +struct stm32_tim_ops_s stm32_tim_ops = +{ + .setmode = &stm32_tim_setmode, + .setclock = &stm32_tim_setclock, + .setperiod = &stm32_tim_setperiod, + .setchannel = &stm32_tim_setchannel, + .setcompare = &stm32_tim_setcompare, + .getcapture = &stm32_tim_getcapture, + .setisr = &stm32_tim_setisr, + .enableint = &stm32_tim_enableint, + .disableint = &stm32_tim_disableint, + .ackint = &stm32_tim_ackint +}; + +#if CONFIG_STM32_TIM2 +struct stm32_tim_priv_s stm32_tim2_priv = +{ + .ops = &stm32_tim_ops, + .mode = STM32_TIM_MODE_UNUSED, + .base = STM32_TIM2_BASE, +}; +#endif + +#if CONFIG_STM32_TIM3 +struct stm32_tim_priv_s stm32_tim3_priv = +{ + .ops = &stm32_tim_ops, + .mode = STM32_TIM_MODE_UNUSED, + .base = STM32_TIM3_BASE, +}; +#endif + +#if CONFIG_STM32_TIM4 +struct stm32_tim_priv_s stm32_tim4_priv = +{ + .ops = &stm32_tim_ops, + .mode = STM32_TIM_MODE_UNUSED, + .base = STM32_TIM4_BASE, +}; +#endif + +#if CONFIG_STM32_TIM5 +struct stm32_tim_priv_s stm32_tim5_priv = +{ + .ops = &stm32_tim_ops, + .mode = STM32_TIM_MODE_UNUSED, + .base = STM32_TIM5_BASE, +}; +#endif + +#if STM32_NBTIM > 0 +#if CONFIG_STM32_TIM6 +struct stm32_tim_priv_s stm32_tim6_priv = +{ + .ops = &stm32_tim_ops, + .mode = STM32_TIM_MODE_UNUSED, + .base = STM32_TIM6_BASE, +}; +#endif +#endif + +#if STM32_NBTIM > 1 +#if CONFIG_STM32_TIM7 +struct stm32_tim_priv_s stm32_tim7_priv = +{ + .ops = &stm32_tim_ops, + .mode = STM32_TIM_MODE_UNUSED, + .base = STM32_TIM7_BASE, +}; +#endif +#endif + +#if STM32_NATIM > 0 + +#if CONFIG_STM32_TIM1 +struct stm32_tim_priv_s stm32_tim1_priv = +{ + .ops = &stm32_tim_ops, + .mode = STM32_TIM_MODE_UNUSED, + .base = STM32_TIM1_BASE, +}; +#endif + +#if CONFIG_STM32_TIM8 +struct stm32_tim_priv_s stm32_tim8_priv = +{ + .ops = &stm32_tim_ops, + .mode = STM32_TIM_MODE_UNUSED, + .base = STM32_TIM8_BASE, +}; +#endif + +#endif + +/************************************************************************************ + * Public Function - Initialization + ************************************************************************************/ + +FAR struct stm32_tim_dev_s *stm32_tim_init(int timer) +{ + struct stm32_tim_dev_s *dev = NULL; + + /* Get structure and enable power */ + + switch (timer) + { +#if CONFIG_STM32_TIM2 + case 2: + dev = (struct stm32_tim_dev_s *)&stm32_tim2_priv; + modifyreg32(STM32_RCC_APB1ENR, 0, RCC_APB1ENR_TIM2EN); + break; +#endif +#if CONFIG_STM32_TIM3 + case 3: + dev = (struct stm32_tim_dev_s *)&stm32_tim3_priv; + modifyreg32(STM32_RCC_APB1ENR, 0, RCC_APB1ENR_TIM3EN); + break; +#endif +#if CONFIG_STM32_TIM4 + case 4: + dev = (struct stm32_tim_dev_s *)&stm32_tim4_priv; + modifyreg32(STM32_RCC_APB1ENR, 0, RCC_APB1ENR_TIM4EN); + break; +#endif +#if CONFIG_STM32_TIM5 + case 5: + dev = (struct stm32_tim_dev_s *)&stm32_tim5_priv; + modifyreg32(STM32_RCC_APB1ENR, 0, RCC_APB1ENR_TIM5EN); + break; +#endif + +#if STM32_NBTIM > 0 +#if CONFIG_STM32_TIM6 + case 6: + dev = (struct stm32_tim_dev_s *)&stm32_tim6_priv; + modifyreg32(STM32_RCC_APB1ENR, 0, RCC_APB1ENR_TIM6EN); + break; +#endif +#endif +#if STM32_NBTIM > 1 +#if CONFIG_STM32_TIM7 + case 7: + dev = (struct stm32_tim_dev_s *)&stm32_tim7_priv; + modifyreg32(STM32_RCC_APB1ENR, 0, RCC_APB1ENR_TIM7EN); + break; +#endif +#endif + +#if STM32_NATIM > 0 +#if CONFIG_STM32_TIM1 + case 1: + dev = (struct stm32_tim_dev_s *)&stm32_tim1_priv; + modifyreg32(STM32_RCC_APB2ENR, 0, RCC_APB2ENR_TIM1EN); + break; +#endif +#if CONFIG_STM32_TIM8 + case 8: + dev = (struct stm32_tim_dev_s *)&stm32_tim8_priv; + modifyreg32(STM32_RCC_APB2ENR, 0, RCC_APB2ENR_TIM8EN); + break; +#endif +#endif + default: + return NULL; + } + + /* Is device already allocated */ + + if (((struct stm32_tim_priv_s *)dev)->mode != STM32_TIM_MODE_UNUSED) + { + return NULL; + } + + stm32_tim_reset(dev); + + return dev; +} + +/* TODO: Detach interrupts, and close down all TIM Channels */ + +int stm32_tim_deinit(FAR struct stm32_tim_dev_s * dev) +{ + ASSERT(dev); + + /* Disable power */ + + switch (((struct stm32_tim_priv_s *)dev)->base) + { +#if CONFIG_STM32_TIM2 + case STM32_TIM2_BASE: + modifyreg32(STM32_RCC_APB1ENR, RCC_APB1ENR_TIM2EN, 0); + break; +#endif +#if CONFIG_STM32_TIM3 + case STM32_TIM3_BASE: + modifyreg32(STM32_RCC_APB1ENR, RCC_APB1ENR_TIM3EN, 0); + break; +#endif +#if CONFIG_STM32_TIM4 + case STM32_TIM4_BASE: + modifyreg32(STM32_RCC_APB1ENR, RCC_APB1ENR_TIM4EN, 0); + break; +#endif +#if CONFIG_STM32_TIM5 + case STM32_TIM5_BASE: + modifyreg32(STM32_RCC_APB1ENR, RCC_APB1ENR_TIM5EN, 0); + break; +#endif +#if STM32_NBTIM > 0 +#if CONFIG_STM32_TIM6 + case STM32_TIM6_BASE: + modifyreg32(STM32_RCC_APB1ENR, RCC_APB1ENR_TIM6EN, 0); + break; +#endif +#endif +#if STM32_NBTIM > 1 +#if CONFIG_STM32_TIM7 + case STM32_TIM7_BASE: + modifyreg32(STM32_RCC_APB1ENR, RCC_APB1ENR_TIM7EN, 0); + break; +#endif +#endif + +#if STM32_NATIM > 0 +#if CONFIG_STM32_TIM1 + case STM32_TIM1_BASE: + modifyreg32(STM32_RCC_APB2ENR, RCC_APB2ENR_TIM1EN, 0); + break; +#endif +#if CONFIG_STM32_TIM8 + case STM32_TIM8_BASE: + modifyreg32(STM32_RCC_APB2ENR, RCC_APB2ENR_TIM8EN, 0); + break; +#endif +#endif + default: + return ERROR; + } + + /* Mark it as free */ + + ((struct stm32_tim_priv_s *)dev)->mode = STM32_TIM_MODE_UNUSED; + + return OK; +} + +#endif /* defined(CONFIG_STM32_TIM1 || ... || TIM8) */ |