xin/rt-thread-am
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

import RT-Thread@9217865c without bsp, libcpu and components/net

Browse source
This commit is contained in:
Zihao Yu 2023-05-20 16:23:33 +08:00
commit e2376a3709
1414 changed files with 390370 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

234
components/drivers/misc/dac.c Normal file
View file

@ -0,0 +1,234 @@
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-06-19 thread-liu the first version
*/
#include <rtdevice.h>
#include <string.h>
#include <stdlib.h>
#define DBG_TAG "dac"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
static rt_ssize_t _dac_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
{
rt_err_t result = RT_EOK;
rt_size_t i;
struct rt_dac_device *dac = (struct rt_dac_device *)dev;
rt_uint32_t *value = (rt_uint32_t *)buffer;
for (i = 0; i < size; i += sizeof(int))
{
result = dac->ops->convert(dac, pos + i, value);
if (result != RT_EOK)
{
return 0;
}
value++;
}
return i;
}
static rt_err_t _dac_control(rt_device_t dev, int cmd, void *args)
{
rt_err_t result = -RT_EINVAL;
rt_dac_device_t dac = (struct rt_dac_device *)dev;
if (cmd == RT_DAC_CMD_ENABLE && dac->ops->enabled)
{
result = dac->ops->enabled(dac, (rt_uint32_t)args);
}
else if (cmd == RT_DAC_CMD_DISABLE && dac->ops->enabled)
{
result = dac->ops->disabled(dac, (rt_uint32_t)args);
}
else if (cmd == RT_DAC_CMD_GET_RESOLUTION && dac->ops->get_resolution)
{
rt_uint8_t resolution = dac->ops->get_resolution(dac);
if(resolution != 0)
{
*((rt_uint8_t*)args) = resolution;
LOG_D("resolution: %d bits", resolution);
result = RT_EOK;
}
}
return result;
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops dac_ops =
{
RT_NULL,
RT_NULL,
RT_NULL,
RT_NULL,
_dac_write,
_dac_control,
};
#endif
rt_err_t rt_hw_dac_register(rt_dac_device_t device, const char *name, const struct rt_dac_ops *ops, const void *user_data)
{
rt_err_t result = RT_EOK;
RT_ASSERT(ops != RT_NULL && ops->convert != RT_NULL);
device->parent.type = RT_Device_Class_DAC;
device->parent.rx_indicate = RT_NULL;
device->parent.tx_complete = RT_NULL;
#ifdef RT_USING_DEVICE_OPS
device->parent.ops = &dac_ops;
#else
device->parent.init = RT_NULL;
device->parent.open = RT_NULL;
device->parent.close = RT_NULL;
device->parent.read = RT_NULL;
device->parent.write = _dac_write;
device->parent.control = _dac_control;
#endif
device->ops = ops;
device->parent.user_data = (void *)user_data;
result = rt_device_register(&device->parent, name, RT_DEVICE_FLAG_RDWR);
return result;
}
rt_err_t rt_dac_write(rt_dac_device_t dev, rt_uint32_t channel, rt_uint32_t value)
{
RT_ASSERT(dev);
return dev->ops->convert(dev, channel, &value);
}
rt_err_t rt_dac_enable(rt_dac_device_t dev, rt_uint32_t channel)
{
rt_err_t result = RT_EOK;
RT_ASSERT(dev);
if (dev->ops->enabled != RT_NULL)
{
result = dev->ops->enabled(dev, channel);
}
else
{
result = -RT_ENOSYS;
}
return result;
}
rt_err_t rt_dac_disable(rt_dac_device_t dev, rt_uint32_t channel)
{
rt_err_t result = RT_EOK;
RT_ASSERT(dev);
if (dev->ops->disabled != RT_NULL)
{
result = dev->ops->disabled(dev, channel);
}
else
{
result = -RT_ENOSYS;
}
return result;
}
#ifdef RT_USING_FINSH
static int dac(int argc, char **argv)
{
int result = RT_EOK;
static rt_dac_device_t dac_device = RT_NULL;
char *result_str;
if (argc > 1)
{
if (!strcmp(argv[1], "probe"))
{
if (argc == 3)
{
dac_device = (rt_dac_device_t)rt_device_find(argv[2]);
result_str = (dac_device == RT_NULL) ? "failure" : "success";
rt_kprintf("probe %s %s \n", argv[2], result_str);
}
else
{
rt_kprintf("dac probe <dac_name> - probe dac by name\n");
}
}
else
{
if (dac_device == RT_NULL)
{
rt_kprintf("Please using 'dac probe <dac_name>' first\n");
return -RT_ERROR;
}
if (!strcmp(argv[1], "enable"))
{
if (argc == 3)
{
result = rt_dac_enable(dac_device, atoi(argv[2]));
result_str = (result == RT_EOK) ? "success" : "failure";
rt_kprintf("%s channel %d enables %s \n", dac_device->parent.parent.name, atoi(argv[2]), result_str);
}
else
{
rt_kprintf("dac enable <channel> - enable dac channel\n");
}
}
else if (!strcmp(argv[1], "write"))
{
if (argc == 4)
{
rt_dac_write(dac_device, atoi(argv[2]), atoi(argv[3]));
rt_kprintf("%s channel %d write value is %d \n", dac_device->parent.parent.name, atoi(argv[2]), atoi(argv[3]));
}
else
{
rt_kprintf("dac write <channel> <value> - write dac value on the channel\n");
}
}
else if (!strcmp(argv[1], "disable"))
{
if (argc == 3)
{
result = rt_dac_disable(dac_device, atoi(argv[2]));
result_str = (result == RT_EOK) ? "success" : "failure";
rt_kprintf("%s channel %d disable %s \n", dac_device->parent.parent.name, atoi(argv[2]), result_str);
}
else
{
rt_kprintf("dac disable <channel> - disable dac channel\n");
}
}
else
{
rt_kprintf("Unknown command. Please enter 'dac' for help\n");
}
}
}
else
{
rt_kprintf("Usage: \n");
rt_kprintf("dac probe <dac_name> - probe dac by name\n");
rt_kprintf("dac write <channel> <value> - write dac value on the channel\n");
rt_kprintf("dac disable <channel> - disable dac channel\n");
rt_kprintf("dac enable <channel> - enable dac channel\n");
result = -RT_ERROR;
}
return RT_EOK;
}
MSH_CMD_EXPORT(dac, dac function);
#endif /* RT_USING_FINSH */