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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
*/
#include <rtthread.h>
#include "drivers/dev_spi.h"
#define DBG_TAG "spi.dev"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
#ifdef RT_USING_DM
#include "dev_spi_dm.h"
#endif
/* SPI bus device interface, compatible with RT-Thread 0.3.x/1.0.x */
static rt_ssize_t _spi_bus_device_read(rt_device_t dev,
rt_off_t pos,
void *buffer,
rt_size_t size)
{
struct rt_spi_bus *bus;
bus = (struct rt_spi_bus *)dev;
RT_ASSERT(bus != RT_NULL);
RT_ASSERT(bus->owner != RT_NULL);
return rt_spi_transfer(bus->owner, RT_NULL, buffer, size);
}
static rt_ssize_t _spi_bus_device_write(rt_device_t dev,
rt_off_t pos,
const void *buffer,
rt_size_t size)
{
struct rt_spi_bus *bus;
bus = (struct rt_spi_bus *)dev;
RT_ASSERT(bus != RT_NULL);
RT_ASSERT(bus->owner != RT_NULL);
return rt_spi_transfer(bus->owner, buffer, RT_NULL, size);
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops spi_bus_ops =
{
RT_NULL,
RT_NULL,
RT_NULL,
_spi_bus_device_read,
_spi_bus_device_write,
RT_NULL
};
#endif
rt_err_t rt_spi_bus_device_init(struct rt_spi_bus *bus, const char *name)
{
struct rt_device *device;
RT_ASSERT(bus != RT_NULL);
device = &bus->parent;
/* set device type */
device->type = RT_Device_Class_SPIBUS;
/* initialize device interface */
#ifdef RT_USING_DEVICE_OPS
device->ops = &spi_bus_ops;
#else
device->init = RT_NULL;
device->open = RT_NULL;
device->close = RT_NULL;
device->read = _spi_bus_device_read;
device->write = _spi_bus_device_write;
device->control = RT_NULL;
#endif
/* register to device manager */
return rt_device_register(device, name, RT_DEVICE_FLAG_RDWR);
}
/* SPI Dev device interface, compatible with RT-Thread 0.3.x/1.0.x */
static rt_ssize_t _spidev_device_read(rt_device_t dev,
rt_off_t pos,
void *buffer,
rt_size_t size)
{
struct rt_spi_device *device;
device = (struct rt_spi_device *)dev;
RT_ASSERT(device != RT_NULL);
RT_ASSERT(device->bus != RT_NULL);
return rt_spi_transfer(device, RT_NULL, buffer, size);
}
static rt_ssize_t _spidev_device_write(rt_device_t dev,
rt_off_t pos,
const void *buffer,
rt_size_t size)
{
struct rt_spi_device *device;
device = (struct rt_spi_device *)dev;
RT_ASSERT(device != RT_NULL);
RT_ASSERT(device->bus != RT_NULL);
return rt_spi_transfer(device, buffer, RT_NULL, size);
}
static rt_err_t _spidev_device_control(rt_device_t dev,
int cmd,
void *args)
{
switch (cmd)
{
case 0: /* set device */
break;
case 1:
break;
}
return RT_EOK;
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops spi_device_ops =
{
RT_NULL,
RT_NULL,
RT_NULL,
_spidev_device_read,
_spidev_device_write,
_spidev_device_control
};
#endif
rt_err_t rt_spidev_device_init(struct rt_spi_device *dev, const char *name)
{
struct rt_device *device;
RT_ASSERT(dev != RT_NULL);
device = &(dev->parent);
/* set device type */
device->type = RT_Device_Class_SPIDevice;
#ifdef RT_USING_DEVICE_OPS
device->ops = &spi_device_ops;
#else
device->init = RT_NULL;
device->open = RT_NULL;
device->close = RT_NULL;
device->read = _spidev_device_read;
device->write = _spidev_device_write;
device->control = _spidev_device_control;
#endif
/* register to device manager */
return rt_device_register(device, name, RT_DEVICE_FLAG_RDWR);
}
#ifdef RT_USING_DM
static rt_err_t spidev_probe(struct rt_spi_device *spi_dev)
{
const char *bus_name;
struct rt_device *dev = &spi_dev->parent;
if (spi_dev->parent.ofw_node)
{
if (rt_dm_dev_prop_index_of_string(dev, "compatible", "spidev") >= 0)
{
LOG_E("spidev is not supported in OFW");
return -RT_EINVAL;
}
}
bus_name = rt_dm_dev_get_name(&spi_dev->bus->parent);
rt_dm_dev_set_name(dev, "%s_%d", bus_name, spi_dev->chip_select[0]);
return RT_EOK;
}
static const struct rt_spi_device_id spidev_ids[] =
{
{ .name = "dh2228fv" },
{ .name = "ltc2488" },
{ .name = "sx1301" },
{ .name = "bk4" },
{ .name = "dhcom-board" },
{ .name = "m53cpld" },
{ .name = "spi-petra" },
{ .name = "spi-authenta" },
{ .name = "em3581" },
{ .name = "si3210" },
{ /* sentinel */ },
};
static const struct rt_ofw_node_id spidev_ofw_ids[] =
{
{ .compatible = "cisco,spi-petra" },
{ .compatible = "dh,dhcom-board" },
{ .compatible = "lineartechnology,ltc2488" },
{ .compatible = "lwn,bk4" },
{ .compatible = "menlo,m53cpld" },
{ .compatible = "micron,spi-authenta" },
{ .compatible = "rohm,dh2228fv" },
{ .compatible = "semtech,sx1301" },
{ .compatible = "silabs,em3581" },
{ .compatible = "silabs,si3210" },
{ .compatible = "rockchip,spidev" },
{ /* sentinel */ },
};
static struct rt_spi_driver spidev_driver =
{
.ids = spidev_ids,
.ofw_ids = spidev_ofw_ids,
.probe = spidev_probe,
};
RT_SPI_DRIVER_EXPORT(spidev_driver);
#endif /* RT_USING_DM */
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