SPI : uart can be read and write

Author: 54shady

debug/spi/README.md

@@ -1,9 +1,18 @@
 # SPI
 
-spi_transfer数据结构
+## 数据结构
+
+spi_transfer
 
 	struct spi_transfer - a read/write buffer pair
 	@tx_buf: data to be written (dma-safe memory), or NULL
 	@rx_buf: data to be read (dma-safe memory), or NULL
 	@len: size of rx and tx buffers (in bytes)
 	@cs_change: affects chipselect after this transfer completes
+
+## Debug
+
+read and write test
+
+	cat /dev/ttysWK0
+	echo 1 > /dev/ttysWK0

debug/spi/spi2uart.c

@@ -122,16 +122,22 @@ static void wk2xxx_release_port(struct uart_port *port)
 	printk("%s, %d\n", __FUNCTION__, __LINE__);
 }
 
+/* Request the memory region(s) being used by port */
 static int wk2xxx_request_port(struct uart_port *port)
 {
 	printk("%s, %d\n", __FUNCTION__, __LINE__);
 
 	return 0;
 }
 
+/* 配置串口 */
 static void wk2xxx_config_port(struct uart_port *port, int flags)
 {
+	struct wk2xxx_port *chip = container_of(port,struct wk2xxx_port,port);
+
 	printk("%s, %d\n", __FUNCTION__, __LINE__);
+	if (flags & UART_CONFIG_TYPE && wk2xxx_request_port(port) == 0)
+		chip->port.type = PORT_WK2XXX;
 }
 
 static int wk2xxx_verify_port(struct uart_port *port, struct serial_struct *ser)
@@ -349,6 +355,7 @@ static int wk2xxx_probe(struct spi_device *spidev)
 
 	printk("%s, %d\n", __FUNCTION__, __LINE__);
 
+#ifdef TEST_DRIVER
 	for (i = 0; i < 10; i++)
 	{
 		/* do 10 time read write */
@@ -358,6 +365,7 @@ static int wk2xxx_probe(struct spi_device *spidev)
 			printk("Nice, :) SPI OK %d time %d\n", val, i);
 		wk2xxx_write_reg(spidev, WK2XXX_GPORT, WK2XXX_GENA, i);
 	}
+#endif
 
 	/* 注册串口驱动 */
 	status = uart_register_driver(&wk2xxx_uart_driver);