[ch32v307v-r1] 添加dac驱动 (#6440)
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hg0720
GitHub
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fdcee2da20
commit
60d6e42941
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@ -19,6 +19,9 @@ if GetDepend('SOC_RISCV_FAMILY_CH32'):
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if GetDepend('RT_USING_ADC'):
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src += ['drv_adc.c']
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if GetDepend(['BSP_USING_DAC']):
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src += ['drv_dac.c']
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path = [cwd]
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group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path)
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@ -0,0 +1,201 @@
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/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2021-09-09 WCH the first version
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* 2022-09-17 hg0720 add some operation function
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*/
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#include <board.h>
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#include <rtthread.h>
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#include <rtdevice.h>
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#include "drv_dac.h"
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#if defined BSP_USING_DAC
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//#define DRV_DEBUG
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#define LOG_TAG "drv.dac"
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#include <drv_log.h>
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static DAC_HandleTypeDef dac_config[] =
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{
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#ifdef BSP_USING_DAC_CHANNEL1
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{ \
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.Instance = DAC, \
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.Init.DAC_Trigger = DAC_Trigger_None, \
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.Init.DAC_WaveGeneration = DAC_WaveGeneration_None, \
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.Init.DAC_LFSRUnmask_TriangleAmplitude = DAC_TriangleAmplitude_4095, \
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.Init.DAC_OutputBuffer = DAC_OutputBuffer_Enable, \
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.Channel = DAC_Channel_1,
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},
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#endif
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#ifdef BSP_USING_DAC_CHANNEL2
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{
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.Instance = DAC, \
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.Init.DAC_Trigger = DAC_Trigger_None, \
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.Init.DAC_WaveGeneration = DAC_WaveGeneration_None, \
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.Init.DAC_LFSRUnmask_TriangleAmplitude = DAC_TriangleAmplitude_4095, \
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.Init.DAC_OutputBuffer = DAC_OutputBuffer_Enable, \
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.Channel = DAC_Channel_2,
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}
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#endif
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};
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struct ch32_dac
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{
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DAC_HandleTypeDef DAC_Handler;
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struct rt_dac_device ch32_dac_device;
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};
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static struct ch32_dac ch32_dac_obj[sizeof(dac_config) / sizeof(dac_config[0])];
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static rt_err_t ch32_dac_enabled(struct rt_dac_device *device, rt_uint32_t channel)
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{
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DAC_HandleTypeDef *ch32_dac_handler;
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RT_ASSERT(device != RT_NULL);
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ch32_dac_handler = device->parent.user_data;
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DAC_Cmd(ch32_dac_handler->Channel, ENABLE);
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return RT_EOK;
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}
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static rt_err_t ch32_dac_disabled(struct rt_dac_device *device, rt_uint32_t channel)
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{
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DAC_HandleTypeDef *ch32_dac_handler;
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RT_ASSERT(device != RT_NULL);
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ch32_dac_handler = device->parent.user_data;
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DAC_Cmd(ch32_dac_handler->Channel, DISABLE);
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return RT_EOK;
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}
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static rt_uint8_t ch32_dac_get_resolution(struct rt_dac_device *device)
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{
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DAC_HandleTypeDef *ch32_dac_handler;
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RT_ASSERT(device != RT_NULL);
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ch32_dac_handler = device->parent.user_data;
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(void)ch32_dac_handler;
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/* Only has supported DAC_ALIGN_12B_R, so it will return 12 bits */
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return 12;
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}
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static rt_uint32_t ch32_dac_get_channel(rt_uint32_t channel)
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{
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rt_uint32_t ch32_channel = 0;
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switch (channel)
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{
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case 1:
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ch32_channel = DAC_Channel_1;
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break;
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case 2:
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ch32_channel = DAC_Channel_2;
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break;
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default:
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RT_ASSERT(0);
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break;
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}
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return ch32_channel;
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}
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static rt_err_t ch32_set_dac_value(struct rt_dac_device *device, rt_uint32_t channel, rt_uint32_t *value)
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{
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uint32_t dac_channel;
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DAC_HandleTypeDef *ch32_dac_handler;
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RT_ASSERT(device != RT_NULL);
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RT_ASSERT(value != RT_NULL);
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ch32_dac_handler = device->parent.user_data;
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if ((channel <= 2) && (channel > 0))
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{
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/* set ch32 dac channel */
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dac_channel = ch32_dac_get_channel(channel);
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}
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else
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{
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LOG_E("dac channel must be 1 or 2.");
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return -RT_ERROR;
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}
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if (channel==1)
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{
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DAC_SetChannel1Data(DAC_Align_12b_R, *value);
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}
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else if (channel==2)
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{
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DAC_SetChannel2Data(DAC_Align_12b_R, *value);
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}
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return RT_EOK;
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}
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static const struct rt_dac_ops ch_dac_ops =
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{
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.disabled = ch32_dac_disabled,
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.enabled = ch32_dac_enabled,
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.convert = ch32_set_dac_value,
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.get_resolution = ch32_dac_get_resolution,
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};
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static int ch32_dac_init(void)
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{
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int result = RT_EOK;
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/* save dac name */
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char name_buf[6] = {'d', 'a', 'c', 'c','0', 0};
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int i = 0;
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GPIO_InitTypeDef GPIO_InitStructure={0};
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE );
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE );
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for (i = 0; i < sizeof(dac_config) / sizeof(dac_config[0]); i++)
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{
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/* dac channel init */
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name_buf[4] = '0';
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ch32_dac_obj[i].DAC_Handler = dac_config[i];
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if (ch32_dac_obj[i].DAC_Handler.Channel==DAC_Channel_1)
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{
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name_buf[4] = '1';
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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}
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if (ch32_dac_obj[i].DAC_Handler.Channel==DAC_Channel_2)
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{
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name_buf[4] = '2';
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init(GPIOA, &GPIO_InitStructure);
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}
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/* init dac channelx */
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DAC_Init(ch32_dac_obj[i].DAC_Handler.Channel,&ch32_dac_obj[i].DAC_Handler.Init);
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/* register dac device */
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if (rt_hw_dac_register(&ch32_dac_obj[i].ch32_dac_device, name_buf, &ch_dac_ops, &ch32_dac_obj[i].DAC_Handler) == RT_EOK)
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{
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LOG_D("%s init success", name_buf);
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}
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else
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{
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LOG_E("%s register failed", name_buf);
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result = -RT_ERROR;
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}
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}
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return result;
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}
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INIT_DEVICE_EXPORT(ch32_dac_init);
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#endif /* BSP_USING_DAC */
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@ -0,0 +1,22 @@
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/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2021-09-09 WCH the first version
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* 2022-09-17 hg0720 add some operation function
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*/
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#ifndef DRV_DAC_H__
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#define DRV_DAC_H__
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typedef struct
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{
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DAC_TypeDef *Instance;
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DAC_InitTypeDef Init;
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rt_uint32_t Channel;
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}DAC_HandleTypeDef;
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#endif
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@ -73,18 +73,16 @@ menu "On-chip Peripheral Drivers"
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config BSP_USING_DAC
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bool "Enable DAC"
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select RT_USING_DAC
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default n
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select RT_USING_DAC
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default n
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if BSP_USING_DAC
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config BSP_USING_DAC_CHANNEL1
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bool "Enable DAC CHANNEL1"
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default n
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config BSP_USING_DAC_CHANNEL2
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bool "Enable DAC CHANNEL2"
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default n
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endif
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default n
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endif
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endmenu
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