[DM/SPI] Support DM mode in SPI

Signed-off-by: GuEe-GUI <[email protected]>

1 files changed, 63 insertions, 0 deletions

diff --git a/components/drivers/include/drivers/dev_spi.h b/components/drivers/include/drivers/dev_spi.h
index 45e8e8544f..ad23453d5b 100644
--- a/components/drivers/include/drivers/dev_spi.h
+++ b/components/drivers/include/drivers/dev_spi.h
@@ -16,6 +16,8 @@
 #include <stdlib.h>
 #include <rtthread.h>
 #include <drivers/dev_pin.h>
+#include <drivers/core/driver.h>
+
 /**
  * @addtogroup  Drivers          RTTHREAD Driver
  * @defgroup    SPI              SPI
@@ -151,7 +153,12 @@ struct rt_spi_configuration
 {
     rt_uint8_t mode;
     rt_uint8_t data_width;
+#ifdef RT_USING_DM
+    rt_uint8_t data_width_tx;
+    rt_uint8_t data_width_rx;
+#else
     rt_uint16_t reserved;
+#endif
 
     rt_uint32_t max_hz;
 };
@@ -167,6 +174,12 @@ struct rt_spi_bus
     rt_uint8_t mode;
     const struct rt_spi_ops *ops;
 
+#ifdef RT_USING_DM
+    rt_base_t *pins;
+    rt_bool_t slave;
+    int num_chipselect;
+#endif /* RT_USING_DM */
+
     struct rt_mutex lock;
     struct rt_spi_device *owner;
 };
@@ -180,6 +193,20 @@ struct rt_spi_ops
     rt_ssize_t (*xfer)(struct rt_spi_device *device, struct rt_spi_message *message);
 };
 
+#ifdef RT_USING_DM
+/**
+ * @brief SPI delay info
+ */
+struct rt_spi_delay
+{
+#define RT_SPI_DELAY_UNIT_USECS 0
+#define RT_SPI_DELAY_UNIT_NSECS 1
+#define RT_SPI_DELAY_UNIT_SCK   2
+    rt_uint16_t value;
+    rt_uint8_t  unit;
+};
+#endif /* RT_USING_DM */
+
 /**
  * @brief SPI Virtual BUS, one device must connected to a virtual BUS
  */
@@ -188,6 +215,17 @@ struct rt_spi_device
     struct rt_device parent;
     struct rt_spi_bus *bus;
 
+#ifdef RT_USING_DM
+    const char *name;
+    const struct rt_spi_device_id *id;
+    const struct rt_ofw_node_id *ofw_id;
+
+    rt_uint8_t chip_select;
+    struct rt_spi_delay cs_setup;
+    struct rt_spi_delay cs_hold;
+    struct rt_spi_delay cs_inactive;
+#endif
+
     struct rt_spi_configuration config;
     rt_base_t cs_pin;
     void   *user_data;
@@ -252,6 +290,31 @@ struct rt_qspi_device
 
 #define SPI_DEVICE(dev) ((struct rt_spi_device *)(dev))
 
+#ifdef RT_USING_DM
+struct rt_spi_device_id
+{
+    char name[20];
+    void *data;
+};
+
+struct rt_spi_driver
+{
+    struct rt_driver parent;
+
+    const struct rt_spi_device_id *ids;
+    const struct rt_ofw_node_id *ofw_ids;
+
+    rt_err_t (*probe)(struct rt_spi_device *device);
+    rt_err_t (*remove)(struct rt_spi_device *device);
+    rt_err_t (*shutdown)(struct rt_spi_device *device);
+};
+
+rt_err_t rt_spi_driver_register(struct rt_spi_driver *driver);
+rt_err_t rt_spi_device_register(struct rt_spi_device *device);
+
+#define RT_SPI_DRIVER_EXPORT(driver)  RT_DRIVER_EXPORT(driver, spi, BUILIN)
+#endif /* RT_USING_DM */
+
 /**
  * @brief register a SPI bus
  *