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rt-thread-official/bsp/essemi/es32f0654/drivers/drv_hwtimer.c

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/*
* Copyright (C) 2018 Shanghai Eastsoft Microelectronics Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* 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
*
* 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.
*
* Change Logs:
* Date Author Notes
* 2019-3-19 wangyq the first version
* 2019-11-01 wangyq update libraries
* 2021-04-20 liuhy the second version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#include <drv_hwtimer.h>
#include <board.h>
#ifdef RT_USING_HWTIMER
struct es32f0_hwtimer_dev
{
rt_hwtimer_t parent;
timer_handle_t *hwtimer_periph;
IRQn_Type IRQn;
};
#ifdef BSP_USING_AD16C4T0_HWTIMER
static struct es32f0_hwtimer_dev ad16c4t0_hwtimer;
static struct rt_hwtimer_info ad16c4t0_info =
{
ES_SYS_CLK >> ES_CMU_PCLK_1_DIV, /* maximum count frequency */
(ES_SYS_CLK >> ES_CMU_PCLK_1_DIV)/(1U<<16), /* minimum count frequency */
0xFFFF, /* counter maximum value */
ES_AD16C4T0_HWTIMER_MODE
};
void AD16C4T0_BRK_UP_TRIG_COM_Handler(void)
{
ald_timer_clear_flag_status(ad16c4t0_hwtimer.hwtimer_periph, TIMER_FLAG_UPDATE);
rt_device_hwtimer_isr(&ad16c4t0_hwtimer.parent);
}
#endif
#ifdef BSP_USING_GP16C4T0_HWTIMER
static struct es32f0_hwtimer_dev gp16c4t0_hwtimer;
static struct rt_hwtimer_info gp16c4t0_info =
{
ES_SYS_CLK >> ES_CMU_PCLK_1_DIV, /* maximum count frequency */
(ES_SYS_CLK >> ES_CMU_PCLK_1_DIV)/(1U<<16), /* minimum count frequency */
0xFFFF, /* counter maximum value */
ES_GP16C4T0_HWTIMER_MODE
};
void GP16C4T0_LCD_Handler(void)
{
ald_timer_clear_flag_status(gp16c4t0_hwtimer.hwtimer_periph, TIMER_FLAG_UPDATE);
rt_device_hwtimer_isr(&gp16c4t0_hwtimer.parent);
}
#endif
#ifdef BSP_USING_GP16C2T0_HWTIMER
static struct es32f0_hwtimer_dev gp16c2t0_hwtimer;
static struct rt_hwtimer_info gp16c2t0_info =
{
ES_SYS_CLK >> ES_CMU_PCLK_1_DIV, /* maximum count frequency */
(ES_SYS_CLK >> ES_CMU_PCLK_1_DIV)/(1U<<16), /* minimum count frequency */
0xFFFF, /* counter maximum value */
ES_GP16C2T0_HWTIMER_MODE
};
void GP16C2T0_Handler(void)
{
ald_timer_clear_flag_status(gp16c2t0_hwtimer.hwtimer_periph, TIMER_FLAG_UPDATE);
rt_device_hwtimer_isr(&gp16c2t0_hwtimer.parent);
}
#endif
#ifdef BSP_USING_GP16C2T1_HWTIMER
static struct es32f0_hwtimer_dev gp16c2t1_hwtimer;
static struct rt_hwtimer_info gp16c2t1_info =
{
ES_SYS_CLK >> ES_CMU_PCLK_1_DIV, /* maximum count frequency */
(ES_SYS_CLK >> ES_CMU_PCLK_1_DIV)/(1U<<16), /* minimum count frequency */
0xFFFF, /* counter maximum value */
ES_GP16C2T1_HWTIMER_MODE
};
void GP16C2T1_Handler(void)
{
ald_timer_clear_flag_status(gp16c2t1_hwtimer.hwtimer_periph, TIMER_FLAG_UPDATE);
rt_device_hwtimer_isr(&gp16c2t1_hwtimer.parent);
}
#endif
#ifdef BSP_USING_BS16T0_HWTIMER
static struct es32f0_hwtimer_dev bs16t0_hwtimer;
static struct rt_hwtimer_info bs16t0_info =
{
ES_SYS_CLK >> ES_CMU_PCLK_1_DIV, /* maximum count frequency */
(ES_SYS_CLK >> ES_CMU_PCLK_1_DIV)/(1U<<16), /* minimum count frequency */
0xFFFF, /* counter maximum value */
ES_BS16T0_HWTIMER_MODE
};
void BS16T0_Handler(void)
{
ald_timer_clear_flag_status(bs16t0_hwtimer.hwtimer_periph, TIMER_FLAG_UPDATE);
rt_device_hwtimer_isr(&bs16t0_hwtimer.parent);
}
#endif
#ifdef BSP_USING_BS16T1_HWTIMER
static struct es32f0_hwtimer_dev bs16t1_hwtimer;
static struct rt_hwtimer_info bs16t1_info =
{
ES_SYS_CLK >> ES_CMU_PCLK_1_DIV, /* maximum count frequency */
(ES_SYS_CLK >> ES_CMU_PCLK_1_DIV)/(1U<<16), /* minimum count frequency */
0xFFFF, /* counter maximum value */
ES_BS16T1_HWTIMER_MODE
};
void BS16T1_UART2_Handler(void)
{
ald_timer_clear_flag_status(bs16t1_hwtimer.hwtimer_periph, TIMER_FLAG_UPDATE);
rt_device_hwtimer_isr(&bs16t1_hwtimer.parent);
}
#endif
#ifdef BSP_USING_BS16T2_HWTIMER
static struct es32f0_hwtimer_dev bs16t2_hwtimer;
static struct rt_hwtimer_info bs16t2_info =
{
ES_SYS_CLK >> ES_CMU_PCLK_1_DIV, /* maximum count frequency */
(ES_SYS_CLK >> ES_CMU_PCLK_1_DIV)/(1U<<16), /* minimum count frequency */
0xFFFF, /* counter maximum value */
ES_BS16T2_HWTIMER_MODE
};
void BS16T2_UART3_Handler(void)
{
ald_timer_clear_flag_status(bs16t2_hwtimer.hwtimer_periph, TIMER_FLAG_UPDATE);
rt_device_hwtimer_isr(&bs16t2_hwtimer.parent);
}
#endif
#ifdef BSP_USING_BS16T3_HWTIMER
static struct es32f0_hwtimer_dev bs16t3_hwtimer;
static struct rt_hwtimer_info bs16t3_info =
{
ES_SYS_CLK >> ES_CMU_PCLK_1_DIV, /* maximum count frequency */
(ES_SYS_CLK >> ES_CMU_PCLK_1_DIV)/(1U<<16), /* minimum count frequency */
0xFFFF, /* counter maximum value */
ES_BS16T3_HWTIMER_MODE
};
void BS16T3_DAC0_Handler(void)
{
ald_timer_clear_flag_status(bs16t3_hwtimer.hwtimer_periph, TIMER_FLAG_UPDATE);
rt_device_hwtimer_isr(&bs16t3_hwtimer.parent);
}
#endif
static void es32f0_hwtimer_init(rt_hwtimer_t *timer, rt_uint32_t state)
{
struct es32f0_hwtimer_dev *hwtimer = (struct es32f0_hwtimer_dev *)timer->parent.user_data;
struct rt_hwtimer_info *hwtimer_info = (struct rt_hwtimer_info *)timer->info;
RT_ASSERT(hwtimer != RT_NULL);
if (1 == state)
{
ald_timer_base_init(hwtimer->hwtimer_periph);
ald_timer_interrupt_config(hwtimer->hwtimer_periph, TIMER_IT_UPDATE, ENABLE);
NVIC_EnableIRQ(hwtimer->IRQn);
}
hwtimer->parent.freq = ald_cmu_get_pclk1_clock()/((hwtimer->hwtimer_periph->perh->PRES & 0xFFFF)+1);
hwtimer_info->maxfreq = hwtimer->parent.freq;
hwtimer_info->minfreq = (hwtimer->parent.freq)/0xFFFF;
}
static rt_err_t es32f0_hwtimer_start(rt_hwtimer_t *timer,
rt_uint32_t cnt,
rt_hwtimer_mode_t mode)
{
struct es32f0_hwtimer_dev *hwtimer = (struct es32f0_hwtimer_dev *)timer->parent.user_data;
RT_ASSERT(hwtimer != RT_NULL);
WRITE_REG(hwtimer->hwtimer_periph->perh->AR, cnt);
ald_timer_base_start(hwtimer->hwtimer_periph);
return RT_EOK;
}
static void es32f0_hwtimer_stop(rt_hwtimer_t *timer)
{
struct es32f0_hwtimer_dev *hwtimer = (struct es32f0_hwtimer_dev *)timer->parent.user_data;
RT_ASSERT(hwtimer != RT_NULL);
ald_timer_base_stop(hwtimer->hwtimer_periph);
}
static rt_uint32_t es32f0_hwtimer_count_get(rt_hwtimer_t *timer)
{
struct es32f0_hwtimer_dev *hwtimer = (struct es32f0_hwtimer_dev *)timer->parent.user_data;
uint32_t hwtimer_count = 0;
RT_ASSERT(hwtimer != RT_NULL);
hwtimer_count = READ_REG(hwtimer->hwtimer_periph->perh->COUNT);
return hwtimer_count;
}
static rt_err_t es32f0_hwtimer_control(rt_hwtimer_t *timer,
rt_uint32_t cmd,
void *args)
{
rt_err_t ret = RT_EOK;
rt_uint32_t freq = 0;
struct es32f0_hwtimer_dev *hwtimer = (struct es32f0_hwtimer_dev *)timer->parent.user_data;
RT_ASSERT(hwtimer != RT_NULL);
switch (cmd)
{
case HWTIMER_CTRL_FREQ_SET:
freq = *(rt_uint32_t *)args;
ret = -RT_ERROR;
if(freq)
{
double temp,target;
temp = (double)ald_cmu_get_pclk1_clock();
target = temp/freq;
if(target < 0x10001) /*最大分频 = max(PRES)+1*/
{
temp = target - (int)(target);
if((temp > 0.998)&&(target < 0x10000))
{
hwtimer->hwtimer_periph->perh->PRES = (uint32_t)target;
ret = RT_EOK;
}
if((temp < 0.002)&&(target >= 0x1))
{
hwtimer->hwtimer_periph->perh->PRES = (uint32_t)target - 1;
ret = RT_EOK;
}
}
if(ret == RT_EOK) /*更新信息*/
hwtimer->parent.freq = ald_cmu_get_pclk1_clock()/((hwtimer->hwtimer_periph->perh->PRES & 0xFFFF)+1);
}
break;
case HWTIMER_CTRL_STOP:
ald_timer_base_stop(hwtimer->hwtimer_periph);
break;
default:
ret = -RT_EINVAL;
break;
}
return ret;
}
static struct rt_hwtimer_ops es32f0_hwtimer_ops =
{
es32f0_hwtimer_init,
es32f0_hwtimer_start,
es32f0_hwtimer_stop,
es32f0_hwtimer_count_get,
es32f0_hwtimer_control
};
int rt_hw_hwtimer_init(void)
{
rt_err_t ret = RT_EOK;
#ifdef BSP_USING_AD16C4T0_HWTIMER
static timer_handle_t ad16c4t0_hwtimer_periph;
ad16c4t0_hwtimer_periph.perh = AD16C4T0;
ad16c4t0_hwtimer.IRQn = AD16C4T0_BRK_UP_TRIG_COM_IRQn;
ad16c4t0_hwtimer_periph.init.prescaler = ES_AD16C4T0_HWTIMER_PRES - 1;
ad16c4t0_hwtimer_periph.init.mode = ( ES_AD16C4T0_HWTIMER_MODE == HWTIMER_CNTMODE_UP )? TIMER_CNT_MODE_UP : TIMER_CNT_MODE_DOWN;
ad16c4t0_hwtimer.hwtimer_periph = &ad16c4t0_hwtimer_periph;
ad16c4t0_hwtimer.parent.info = &ad16c4t0_info;
ad16c4t0_hwtimer.parent.ops = &es32f0_hwtimer_ops;
ret = rt_device_hwtimer_register(&ad16c4t0_hwtimer.parent, ES_DEVICE_NAME_AD16C4T0_HWTIMER, &ad16c4t0_hwtimer);
#endif
#ifdef BSP_USING_GP16C4T0_HWTIMER
static timer_handle_t gp16c4t0_hwtimer_periph;
gp16c4t0_hwtimer_periph.perh = GP16C4T0;
gp16c4t0_hwtimer.IRQn = GP16C4T0_LCD_IRQn;
gp16c4t0_hwtimer_periph.init.prescaler = ES_GP16C4T0_HWTIMER_PRES - 1;
gp16c4t0_hwtimer_periph.init.mode = ( ES_GP16C4T0_HWTIMER_MODE == HWTIMER_CNTMODE_UP )? TIMER_CNT_MODE_UP : TIMER_CNT_MODE_DOWN;
gp16c4t0_hwtimer.hwtimer_periph = &gp16c4t0_hwtimer_periph;
gp16c4t0_hwtimer.parent.info = &gp16c4t0_info;
gp16c4t0_hwtimer.parent.ops = &es32f0_hwtimer_ops;
ret = rt_device_hwtimer_register(&gp16c4t0_hwtimer.parent, ES_DEVICE_NAME_GP16C4T0_HWTIMER, &gp16c4t0_hwtimer);
#endif
#ifdef BSP_USING_GP16C2T0_HWTIMER
static timer_handle_t gp16c2t0_hwtimer_periph;
gp16c2t0_hwtimer_periph.perh = GP16C2T0;
gp16c2t0_hwtimer.IRQn = GP16C2T0_IRQn;
gp16c2t0_hwtimer_periph.init.prescaler = ES_GP16C2T0_HWTIMER_PRES - 1;
gp16c2t0_hwtimer_periph.init.mode = ( ES_GP16C2T0_HWTIMER_MODE == HWTIMER_CNTMODE_UP )? TIMER_CNT_MODE_UP : TIMER_CNT_MODE_DOWN;
gp16c2t0_hwtimer.hwtimer_periph = &gp16c2t0_hwtimer_periph;
gp16c2t0_hwtimer.parent.info = &gp16c2t0_info;
gp16c2t0_hwtimer.parent.ops = &es32f0_hwtimer_ops;
ret = rt_device_hwtimer_register(&gp16c2t0_hwtimer.parent, ES_DEVICE_NAME_GP16C2T0_HWTIMER, &gp16c2t0_hwtimer);
#endif
#ifdef BSP_USING_GP16C2T1_HWTIMER
static timer_handle_t gp16c2t1_hwtimer_periph;
gp16c2t1_hwtimer_periph.perh = GP16C2T1;
gp16c2t1_hwtimer.IRQn = GP16C2T1_IRQn;
gp16c2t1_hwtimer_periph.init.prescaler = ES_GP16C2T1_HWTIMER_PRES - 1;
gp16c2t1_hwtimer_periph.init.mode = ( ES_GP16C2T1_HWTIMER_MODE == HWTIMER_CNTMODE_UP )? TIMER_CNT_MODE_UP : TIMER_CNT_MODE_DOWN;
gp16c2t1_hwtimer.hwtimer_periph = &gp16c2t1_hwtimer_periph;
gp16c2t1_hwtimer.parent.info = &gp16c2t1_info;
gp16c2t1_hwtimer.parent.ops = &es32f0_hwtimer_ops;
ret = rt_device_hwtimer_register(&gp16c2t1_hwtimer.parent, ES_DEVICE_NAME_GP16C2T1_HWTIMER, &gp16c2t1_hwtimer);
#endif
#ifdef BSP_USING_BS16T0_HWTIMER
static timer_handle_t bs16t0_hwtimer_periph;
bs16t0_hwtimer_periph.perh = BS16T0;
bs16t0_hwtimer.IRQn = BS16T0_IRQn;
bs16t0_hwtimer_periph.init.prescaler = ES_BS16T0_HWTIMER_PRES - 1;
bs16t0_hwtimer_periph.init.mode = ( ES_BS16T0_HWTIMER_MODE == HWTIMER_CNTMODE_UP )? TIMER_CNT_MODE_UP : TIMER_CNT_MODE_DOWN;
bs16t0_hwtimer.hwtimer_periph = &bs16t0_hwtimer_periph;
bs16t0_hwtimer.parent.info = &bs16t0_info;
bs16t0_hwtimer.parent.ops = &es32f0_hwtimer_ops;
ret = rt_device_hwtimer_register(&bs16t0_hwtimer.parent, ES_DEVICE_NAME_BS16T0_HWTIMER, &bs16t0_hwtimer);
#endif
#ifdef BSP_USING_BS16T1_HWTIMER
static timer_handle_t bs16t1_hwtimer_periph;
bs16t1_hwtimer_periph.perh = BS16T1;
bs16t1_hwtimer.IRQn = BS16T1_UART2_IRQn;
bs16t1_hwtimer_periph.init.prescaler = ES_BS16T1_HWTIMER_PRES - 1;
bs16t1_hwtimer_periph.init.mode = ( ES_BS16T1_HWTIMER_MODE == HWTIMER_CNTMODE_UP )? TIMER_CNT_MODE_UP : TIMER_CNT_MODE_DOWN;
bs16t1_hwtimer.hwtimer_periph = &bs16t1_hwtimer_periph;
bs16t1_hwtimer.parent.info = &bs16t1_info;
bs16t1_hwtimer.parent.ops = &es32f0_hwtimer_ops;
ret = rt_device_hwtimer_register(&bs16t1_hwtimer.parent, ES_DEVICE_NAME_BS16T1_HWTIMER, &bs16t1_hwtimer);
#endif
#ifdef BSP_USING_BS16T2_HWTIMER
static timer_handle_t bs16t2_hwtimer_periph;
bs16t2_hwtimer_periph.perh = BS16T2;
bs16t2_hwtimer.IRQn = BS16T2_UART3_IRQn;
bs16t2_hwtimer_periph.init.prescaler = ES_BS16T2_HWTIMER_PRES - 1;
bs16t2_hwtimer_periph.init.mode = ( ES_BS16T2_HWTIMER_MODE == HWTIMER_CNTMODE_UP )? TIMER_CNT_MODE_UP : TIMER_CNT_MODE_DOWN;
bs16t2_hwtimer.hwtimer_periph = &bs16t2_hwtimer_periph;
bs16t2_hwtimer.parent.info = &bs16t2_info;
bs16t2_hwtimer.parent.ops = &es32f0_hwtimer_ops;
ret = rt_device_hwtimer_register(&bs16t2_hwtimer.parent, ES_DEVICE_NAME_BS16T2_HWTIMER, &bs16t2_hwtimer);
#endif
#ifdef BSP_USING_BS16T3_HWTIMER
static timer_handle_t bs16t3_hwtimer_periph;
bs16t3_hwtimer_periph.perh = BS16T3;
bs16t3_hwtimer.IRQn = BS16T3_DAC0_IRQn;
bs16t3_hwtimer_periph.init.prescaler = ES_BS16T3_HWTIMER_PRES - 1;
bs16t3_hwtimer_periph.init.mode = ( ES_BS16T3_HWTIMER_MODE == HWTIMER_CNTMODE_UP )? TIMER_CNT_MODE_UP : TIMER_CNT_MODE_DOWN;
bs16t3_hwtimer.hwtimer_periph = &bs16t3_hwtimer_periph;
bs16t3_hwtimer.parent.info = &bs16t3_info;
bs16t3_hwtimer.parent.ops = &es32f0_hwtimer_ops;
ret = rt_device_hwtimer_register(&bs16t3_hwtimer.parent, ES_DEVICE_NAME_BS16T3_HWTIMER, &bs16t3_hwtimer);
#endif
return ret;
}
INIT_BOARD_EXPORT(rt_hw_hwtimer_init);
#endif
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