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/*
* Copyright (c) 2006-2024 RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-07-28 rtthread qiu first version
*/
#include "drv_dac.h"
#include "drv_common.h"
#include <rtthread.h>
#if defined(BSP_USING_DAC1) || defined(BSP_USING_DAC2)
#define LOG_TAG "drv.dac"
#include <drv_log.h>
struct cyp_dac
{
cy_stc_csdidac_config_t cyhal_dac_device;
struct rt_dac_device cyp_dac_device;
char *name;
};
static struct cyp_dac dac_config[] =
{
#ifdef BSP_USING_DAC1
DAC1_CONFIG,
#endif
#ifdef BSP_USING_DAC2
DAC2_CONFIG,
#endif
};
/*get dac channel*/
static rt_uint32_t cyp_dac_get_channel(rt_uint32_t channel)
{
rt_uint32_t cyp_dac_channel = 0;
switch (channel)
{
case 1:
cyp_dac_channel = CY_CSDIDAC_A;
break;
case 2:
cyp_dac_channel = CY_CSDIDAC_B;
break;
default:
RT_ASSERT(0);
break;
}
return cyp_dac_channel;
}
struct cyp_dac cyp_adc_obj[sizeof(dac_config) / sizeof(dac_config[0])];
cy_stc_csdidac_context_t csdidac_context;
/*dac device enable*/
static rt_err_t cyp_dac_enabled(struct rt_dac_device *device, rt_uint32_t channel)
{
cy_rslt_t result;
rt_uint32_t cyp_channel;
RT_ASSERT(device != RT_NULL);
cyhal_dac_t *dac_device;
dac_device = device->parent.user_data;
/* get current dac channel*/
cyp_channel = cyp_dac_get_channel(channel);
/*DAC device init*/
result = Cy_CSDIDAC_Init(&CSDIDAC_csdidac_config, &csdidac_context);
if (result != RT_EOK)
{
LOG_E("Cy_CSDIDAC_Init fail = %d\n", result);
return -RT_ENOSYS;
}
return RT_EOK;
}
/*dac device disable*/
static rt_err_t cyp_dac_disable(struct rt_dac_device *device, rt_uint32_t channel)
{
rt_uint32_t cyp_channel;
cy_rslt_t result;
RT_ASSERT(device != RT_NULL);
cyhal_dac_t *dac_device;
dac_device = device->parent.user_data;
cyp_channel = cyp_dac_get_channel(channel);
/*DAC free device*/
result = Cy_CSDIDAC_OutputDisable(cyp_channel, &csdidac_context);
if (result != RT_EOK)
{
LOG_E("DAC Outputdisable failed. Error: %d\n", result);
return -RT_ENOSYS;
}
return RT_EOK;
}
/*set dac output value*/
static rt_err_t cyp_adc_convert(struct rt_dac_device *device, rt_uint32_t channel, rt_uint32_t *value)
{
RT_ASSERT(device != RT_NULL);
cy_rslt_t result;
rt_uint32_t cyp_channel;
cyp_channel = cyp_dac_get_channel(channel);
result = Cy_CSDIDAC_OutputEnable(cyp_channel, *value, &csdidac_context);
if (result != RT_EOK)
{
LOG_E("DAC channel initialization failed. Error: %d\n", result);
return -RT_ENOSYS;
}
return RT_EOK;
}
static const struct rt_dac_ops cyp_dac_ops =
{
.disabled = cyp_dac_disable,
.enabled = cyp_dac_enabled,
.convert = cyp_adc_convert,
};
/*dac device init*/
static int rt_hw_dac_init(void)
{
int result = RT_EOK;
/* save dac name */
char name_buf[5] = {'d', 'a', 'c', '0', 0};
int i = 0;
i = sizeof(dac_config) / sizeof(dac_config[0]);
for (i = 0; i < sizeof(dac_config) / sizeof(dac_config[0]); i++)
{
#ifdef BSP_USING_DAC1
name_buf[3] = '1';
#endif
#ifdef BSP_USING_DAC2
name_buf[3] = '2';
#endif
/* register DAC device */
if (rt_hw_dac_register(&cyp_adc_obj[i].cyp_dac_device, name_buf, &cyp_dac_ops, RT_NULL) == RT_EOK)
{
LOG_E("dac device register success\n");
}
else
{
LOG_E("dac device register fail\n");
result = -RT_ERROR;
}
}
return result;
}
INIT_BOARD_EXPORT(rt_hw_dac_init);
#endif /* BSP_USING_DAC1 /BSP_USING_DAC2 */
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