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feat:[drivers][spi] rt_spi_bus_configure 添加 -RT_EBUSY 返回值,并增加说明注释

This commit is contained in:
wdfk-prog 2024-10-04 17:31:30 +08:00 committed by Meco Man
parent 9bcb904a0b
commit 99503d3ff6
2 changed files with 28 additions and 2 deletions
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23
components/drivers/include/drivers/dev_spi.h
View File

@ -184,7 +184,19 @@ rt_err_t rt_spi_bus_attach_device_cspin(struct rt_spi_device *device,
rt_base_t cs_pin,
void *user_data);
/* re-configure SPI bus */
/**
* @brief Reconfigure the SPI bus for the specified device.
* @param device: Pointer to the SPI device attached to the SPI bus.
* @retval RT_EOK if the SPI device was successfully released and the bus was configured.
* RT_EBUSY if the SPI bus is currently in use; the new configuration will take effect once the device releases the bus.
* Other return values indicate failure to configure the SPI bus due to various reasons.
* @note If the configuration of the SPI device has been updated and requires bus re-initialization,
* call this function directly. This function will reconfigure the SPI bus for the specified device.
* If this is the first time to initialize the SPI device, please call rt_spi_configure or rt_qspi_configure.
* This function is used to reconfigure the SPI bus when the SPI device is already in use.
* For further details, refer to:
* https://github.com/RT-Thread/rt-thread/pull/8528
*/
rt_err_t rt_spi_bus_configure(struct rt_spi_device *device);
/**
@ -223,7 +235,14 @@ rt_err_t rt_spi_take(struct rt_spi_device *device);
*/
rt_err_t rt_spi_release(struct rt_spi_device *device);
/* set configuration on SPI device */
/**
* @brief This function can set configuration on SPI device.
* @param device: the SPI device attached to SPI bus
* @param cfg: the configuration pointer.
* @retval RT_EOK on release SPI device successfully.
* RT_EBUSY is not an error condition and the configuration will take effect once the device has the bus
* others on taken SPI bus failed.
*/
rt_err_t rt_spi_configure(struct rt_spi_device *device,
struct rt_spi_configuration *cfg);

7
components/drivers/spi/dev_spi_core.c
View File

@ -106,6 +106,13 @@ rt_err_t rt_spi_bus_configure(struct rt_spi_device *device)
LOG_E("SPI device %s configuration failed", device->parent.parent.name);
}
}
else
{
/* RT_EBUSY is not an error condition and
* the configuration will take effect once the device has the bus
*/
return -RT_EBUSY;
}
/* release lock */
rt_mutex_release(&(device->bus->lock));