150 lines
3.5 KiB
C
150 lines
3.5 KiB
C
#include <rtthread.h>
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#include <drivers/spi.h>
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/* SPI bus device interface, compatible with RT-Thread 0.3.x/1.0.x */
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static rt_err_t _spi_bus_device_init(rt_device_t dev)
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{
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struct rt_spi_bus* bus;
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bus = (struct rt_spi_bus*) dev;
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RT_ASSERT(bus != RT_NULL);
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return RT_EOK;
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}
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static rt_size_t _spi_bus_device_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
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{
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struct rt_spi_bus* bus;
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bus = (struct rt_spi_bus*) dev;
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RT_ASSERT(bus != RT_NULL);
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RT_ASSERT(bus->owner != RT_NULL);
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return rt_spi_transfer(bus->owner, RT_NULL, buffer, size);
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}
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static rt_size_t _spi_bus_device_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
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{
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struct rt_spi_bus* bus;
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bus = (struct rt_spi_bus*) dev;
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RT_ASSERT(bus != RT_NULL);
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RT_ASSERT(bus->owner != RT_NULL);
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return rt_spi_transfer(bus->owner, buffer, RT_NULL, size);
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}
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static rt_err_t _spi_bus_device_control(rt_device_t dev, rt_uint8_t cmd, void *args)
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{
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struct rt_spi_bus* bus;
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bus = (struct rt_spi_bus*) dev;
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RT_ASSERT(bus != RT_NULL);
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switch (cmd)
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{
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case 0: /* set device */
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break;
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case 1:
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break;
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}
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return RT_EOK;
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}
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rt_err_t rt_spi_bus_device_init(struct rt_spi_bus* bus, const char* name)
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{
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struct rt_device *device;
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RT_ASSERT(bus != RT_NULL);
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device = &bus->parent;
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/* set device type */
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device->type = RT_Device_Class_SPIBUS;
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/* initialize device interface */
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device->init = _spi_bus_device_init;
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device->open = RT_NULL;
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device->close = RT_NULL;
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device->read = _spi_bus_device_read;
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device->write = _spi_bus_device_write;
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device->control = _spi_bus_device_control;
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/* register to device manager */
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rt_device_register(device, name, RT_DEVICE_FLAG_RDWR);
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return RT_EOK;
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}
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/* SPI Dev device interface, compatible with RT-Thread 0.3.x/1.0.x */
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static rt_err_t _spidev_device_init(rt_device_t dev)
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{
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struct rt_spi_device* device;
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device = (struct rt_spi_device*) dev;
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RT_ASSERT(device != RT_NULL);
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return RT_EOK;
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}
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static rt_size_t _spidev_device_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
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{
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struct rt_spi_device* device;
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device = (struct rt_spi_device*) dev;
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RT_ASSERT(device != RT_NULL);
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RT_ASSERT(device->bus != RT_NULL);
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return rt_spi_transfer(device, RT_NULL, buffer, size);
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}
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static rt_size_t _spidev_device_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
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{
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struct rt_spi_device* device;
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device = (struct rt_spi_device*) dev;
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RT_ASSERT(device != RT_NULL);
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RT_ASSERT(device->bus != RT_NULL);
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return rt_spi_transfer(device, buffer, RT_NULL, size);
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}
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static rt_err_t _spidev_device_control(rt_device_t dev, rt_uint8_t cmd, void *args)
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{
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struct rt_spi_device* device;
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device = (struct rt_spi_device*) dev;
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RT_ASSERT(device != RT_NULL);
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switch (cmd)
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{
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case 0: /* set device */
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break;
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case 1:
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break;
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}
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return RT_EOK;
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}
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rt_err_t rt_spidev_device_init(struct rt_spi_device* dev, const char* name)
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{
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struct rt_device* device;
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RT_ASSERT(device != RT_NULL);
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device = &(dev->parent);
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/* set device type */
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device->type = RT_Device_Class_SPIDevice;
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device->init = _spidev_device_init;
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device->open = RT_NULL;
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device->close = RT_NULL;
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device->read = _spidev_device_read;
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device->write = _spidev_device_write;
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device->control = _spidev_device_control;
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/* register to device manager */
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rt_device_register(device, name, RT_DEVICE_FLAG_RDWR);
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return RT_EOK;
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}
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