| /****************************************************************************** |
| * @file timer.c |
| * |
| * @brief for TLSR chips |
| * |
| * @author public@telink-semi.com; |
| * @date Sep. 30, 2010 |
| * |
| * @attention |
| * |
| * Copyright (C) 2019-2020 Telink Semiconductor (Shanghai) Co., Ltd. |
| * |
| * 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. |
| * |
| *****************************************************************************/ |
| #include "timer.h" |
| |
| /** |
| * @brief This function performs to set sleep us. |
| * @param[in] us - microseconds need to delay. |
| * @return none |
| */ |
| |
| _attribute_ram_code_ void sleep_us(unsigned long us) |
| { |
| unsigned long t = clock_time(); |
| while(!clock_time_exceed(t, us)){ |
| } |
| } |
| |
| /** |
| * @brief initiate GPIO for gpio trigger and gpio width mode of timer0. |
| * @param[in] pin - select pin for timer0. |
| * @param[in] pol - select polarity for gpio trigger and gpio width |
| * @return none |
| */ |
| void timer0_gpio_init(GPIO_PinTypeDef pin, GPIO_PolTypeDef pol) |
| { |
| gpio_set_func(pin ,AS_GPIO); |
| gpio_set_output_en(pin, 0); //disable output |
| gpio_set_input_en(pin ,1);//enable input |
| if(pol==POL_FALLING) |
| { |
| gpio_setup_up_down_resistor(pin,PM_PIN_PULLUP_10K); |
| } |
| else if(pol==POL_RISING) |
| { |
| gpio_setup_up_down_resistor(pin,PM_PIN_PULLDOWN_100K); |
| } |
| gpio_set_interrupt_risc0(pin, pol); |
| } |
| /** |
| * @brief initiate GPIO for gpio trigger and gpio width mode of timer1. |
| * @param[in] pin - select pin for timer1. |
| * @param[in] pol - select polarity for gpio trigger and gpio width |
| * @return none |
| */ |
| void timer1_gpio_init(GPIO_PinTypeDef pin,GPIO_PolTypeDef pol) |
| { |
| gpio_set_func(pin ,AS_GPIO); |
| gpio_set_output_en(pin, 0); //disable output |
| gpio_set_input_en(pin ,1);//enable input |
| if(pol==POL_FALLING) |
| { |
| gpio_setup_up_down_resistor(pin,PM_PIN_PULLUP_10K); |
| } |
| else if(pol==POL_RISING) |
| { |
| gpio_setup_up_down_resistor(pin,PM_PIN_PULLDOWN_100K); |
| } |
| gpio_set_interrupt_risc1(pin, pol); |
| } |
| /** |
| * @brief initiate GPIO for gpio trigger and gpio width mode of timer2. |
| * @param[in] pin - select pin for timer2. |
| * @param[in] pol - select polarity for gpio trigger and gpio width |
| * @return none |
| */ |
| void timer2_gpio_init(GPIO_PinTypeDef pin,GPIO_PolTypeDef pol) |
| { |
| gpio_set_func(pin ,AS_GPIO); |
| gpio_set_output_en(pin, 0); //disable output |
| gpio_set_input_en(pin ,1);//enable input |
| if(pol==POL_FALLING) |
| { |
| gpio_setup_up_down_resistor(pin,PM_PIN_PULLUP_10K); |
| } |
| else if(pol==POL_RISING) |
| { |
| gpio_setup_up_down_resistor(pin,PM_PIN_PULLDOWN_100K); |
| } |
| |
| unsigned char bit = pin & 0xff; |
| |
| BM_SET(reg_gpio_irq_risc2_en(pin), bit); |
| |
| if(pol==POL_FALLING) |
| { |
| BM_SET(reg_gpio_pol(pin), bit); |
| } |
| else if(pol==POL_RISING) |
| { |
| BM_CLR(reg_gpio_pol(pin), bit); |
| } |
| } |
| /** |
| * @brief set mode, initial tick and capture of timer0. |
| * @param[in] mode - select mode for timer0. |
| * @param[in] init_tick - initial tick. |
| * @param[in] cap_tick - tick of capture. |
| * @return none |
| */ |
| void timer0_set_mode(TIMER_ModeTypeDef mode,unsigned int init_tick, unsigned int cap_tick) |
| { |
| switch(mode) |
| { |
| case TIMER_MODE_SYSCLK: |
| { |
| reg_irq_mask |= FLD_IRQ_TMR0_EN; |
| reg_tmr0_tick = init_tick; |
| reg_tmr0_capt = cap_tick; |
| reg_tmr_sta = FLD_TMR_STA_TMR0; //clear irq status |
| reg_tmr_ctrl &= (~FLD_TMR0_MODE); |
| reg_tmr_ctrl |= (TIMER_MODE_SYSCLK<<1); |
| break; |
| } |
| case TIMER_MODE_GPIO_TRIGGER: |
| { |
| reg_irq_mask |= FLD_IRQ_TMR0_EN; |
| reg_tmr0_tick = init_tick; |
| reg_tmr0_capt = cap_tick; |
| reg_tmr_sta = FLD_TMR_STA_TMR0; //clear irq status |
| reg_tmr_ctrl &= (~FLD_TMR0_MODE); |
| reg_tmr_ctrl |= (TIMER_MODE_GPIO_TRIGGER<<1); |
| break; |
| } |
| case TIMER_MODE_GPIO_WIDTH: |
| { |
| reg_irq_mask |= FLD_IRQ_TMR0_EN; |
| reg_tmr0_tick = init_tick; |
| reg_tmr_sta = FLD_TMR_STA_TMR0; |
| reg_tmr_ctrl &= (~FLD_TMR0_MODE); |
| reg_tmr_ctrl |= (TIMER_MODE_GPIO_WIDTH<<1); |
| break; |
| } |
| case TIMER_MODE_TICK: |
| { |
| reg_irq_mask |= FLD_IRQ_TMR0_EN; |
| reg_tmr0_tick = init_tick; //clear counter |
| reg_tmr_sta = FLD_TMR_STA_TMR0; //clear irq status |
| reg_tmr_ctrl &= (~FLD_TMR0_MODE); |
| reg_tmr_ctrl |= (TIMER_MODE_TICK<<1); |
| break; |
| } |
| default: break; |
| } |
| } |
| /** |
| * @brief set mode, initial tick and capture of timer1. |
| * @param[in] mode - select mode for timer1. |
| * @param[in] init_tick - initial tick. |
| * @param[in] cap_tick - tick of capture. |
| * @return none |
| */ |
| void timer1_set_mode(TIMER_ModeTypeDef mode,unsigned int init_tick, unsigned int cap_tick) |
| { |
| switch(mode) |
| { |
| case TIMER_MODE_SYSCLK: |
| { |
| reg_irq_mask |= FLD_IRQ_TMR1_EN; |
| reg_tmr1_tick = init_tick; |
| reg_tmr1_capt = cap_tick; |
| reg_tmr_sta = FLD_TMR_STA_TMR1; //clear irq status |
| reg_tmr_ctrl &= (~FLD_TMR1_MODE); |
| reg_tmr_ctrl |= (TIMER_MODE_SYSCLK<<4); |
| break; |
| } |
| case TIMER_MODE_GPIO_TRIGGER: |
| { |
| reg_irq_mask |= FLD_IRQ_TMR1_EN; |
| reg_tmr1_tick = init_tick; |
| reg_tmr1_capt = cap_tick; |
| reg_tmr_sta = FLD_TMR_STA_TMR1; //clear irq status |
| reg_tmr_ctrl &= (~FLD_TMR1_MODE); |
| reg_tmr_ctrl |= (TIMER_MODE_GPIO_TRIGGER<<4); |
| break; |
| } |
| case TIMER_MODE_GPIO_WIDTH: |
| { |
| reg_irq_mask |= FLD_IRQ_TMR1_EN; |
| reg_tmr1_tick = init_tick; |
| reg_tmr_sta = FLD_TMR_STA_TMR1; |
| reg_tmr_ctrl &= (~FLD_TMR1_MODE); |
| reg_tmr_ctrl |= (TIMER_MODE_GPIO_WIDTH<<4); |
| break; |
| } |
| case TIMER_MODE_TICK: |
| { |
| reg_irq_mask |= FLD_IRQ_TMR1_EN; |
| reg_tmr1_tick = init_tick; //clear counter |
| reg_tmr_sta = FLD_TMR_STA_TMR1; //clear irq status |
| reg_tmr_ctrl &= (~FLD_TMR1_MODE); |
| reg_tmr_ctrl |= (TIMER_MODE_TICK<<4); |
| break; |
| } |
| default: break; |
| } |
| } |
| /** |
| * @brief set mode, initial tick and capture of timer2. |
| * @param[in] mode - select mode for timer2. |
| * @param[in] init_tick - initial tick. |
| * @param[in] cap_tick - tick of capture. |
| * @return none |
| */ |
| void timer2_set_mode(TIMER_ModeTypeDef mode,unsigned int init_tick, unsigned int cap_tick) |
| { |
| switch(mode) |
| { |
| case TIMER_MODE_SYSCLK: |
| { |
| reg_irq_mask |= FLD_IRQ_TMR2_EN; |
| reg_tmr2_tick = init_tick; |
| reg_tmr2_capt = cap_tick; |
| reg_tmr_sta = FLD_TMR_STA_TMR2; //clear irq status |
| reg_tmr_ctrl &= (~FLD_TMR2_MODE); |
| reg_tmr_ctrl |= (TIMER_MODE_SYSCLK<<7); |
| break; |
| } |
| case TIMER_MODE_GPIO_TRIGGER: |
| { |
| reg_irq_mask |= FLD_IRQ_TMR2_EN; |
| reg_tmr2_tick = init_tick; |
| reg_tmr2_capt = cap_tick; |
| reg_tmr_sta = FLD_TMR_STA_TMR2; //clear irq status |
| reg_tmr_ctrl &= (~FLD_TMR2_MODE); |
| reg_tmr_ctrl |= (TIMER_MODE_GPIO_TRIGGER<<7); |
| break; |
| } |
| case TIMER_MODE_GPIO_WIDTH: |
| { |
| reg_irq_mask |= FLD_IRQ_TMR2_EN; |
| reg_tmr2_tick = init_tick; |
| reg_tmr_sta = FLD_TMR_STA_TMR2; |
| reg_tmr_ctrl &= (~FLD_TMR2_MODE); |
| reg_tmr_ctrl |= (TIMER_MODE_GPIO_WIDTH<<7); |
| break; |
| } |
| case TIMER_MODE_TICK: |
| { |
| reg_irq_mask |= FLD_IRQ_TMR2_EN; |
| reg_tmr2_tick = init_tick; //clear counter |
| reg_tmr_sta = FLD_TMR_STA_TMR2; //clear irq status |
| reg_tmr_ctrl &= (~FLD_TMR2_MODE); |
| reg_tmr_ctrl |= (TIMER_MODE_TICK<<7); |
| break; |
| } |
| default: break; |
| } |
| } |
| /** |
| * @brief the specified timer start working. |
| * @param[in] type - select the timer to start. |
| * @return none |
| */ |
| void timer_start(TIMER_TypeDef type) |
| { |
| switch(type) |
| { |
| case TIMER0: |
| reg_tmr_ctrl |= FLD_TMR0_EN; |
| break; |
| case TIMER1: |
| reg_tmr_ctrl |= FLD_TMR1_EN; |
| break; |
| case TIMER2: |
| reg_tmr_ctrl |= FLD_TMR2_EN; |
| break; |
| default: |
| break; |
| } |
| } |
| /** |
| * @brief the specified timer stop working. |
| * @param[in] type - select the timer to stop. |
| * @return none |
| */ |
| void timer_stop(TIMER_TypeDef type) |
| { |
| switch(type) |
| { |
| case TIMER0: |
| reg_tmr_ctrl &= (~FLD_TMR0_EN); |
| break; |
| case TIMER1: |
| reg_tmr_ctrl &= (~FLD_TMR1_EN); |
| break; |
| case TIMER2: |
| reg_tmr_ctrl &= (~FLD_TMR2_EN); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| |
