support DBGU,UART0~UART3

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1587 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/at91sam9260/board.c

@@ -33,23 +33,60 @@ extern void rt_hw_set_clock(rt_uint8_t sdiv, rt_uint8_t pdiv, rt_uint8_t mdiv);
 /*set debug serial port*/
 //#define USE_UART1
 //#define USE_UART3
-#define USE_DBGU
+//#define USE_DBGU
 
 #define DBGU	((struct uartport *)0xfffff200)
+#define UART0   ((struct uartport *)AT91SAM9260_BASE_US0)
 #define UART1   ((struct uartport *)AT91SAM9260_BASE_US1)
+#define UART2   ((struct uartport *)AT91SAM9260_BASE_US2)
 #define UART3	((struct uartport *)AT91SAM9260_BASE_US3)
+#define UART4   ((struct uartport *)AT91SAM9260_BASE_US4)
+#define UART5   ((struct uartport *)AT91SAM9260_BASE_US5)
+
 struct serial_int_rx uart0_int_rx;
 struct serial_device uart0 =
 {
-	//UART0,
 	DBGU,
-	//UART1,
-	//UART3,
 	&uart0_int_rx,
 	RT_NULL
 };
 struct rt_device uart0_device;
 
+struct serial_int_rx uart1_int_rx;
+struct serial_device uart1 =
+{
+	UART0,
+	&uart1_int_rx,
+	RT_NULL
+};
+struct rt_device uart1_device;
+
+struct serial_int_rx uart2_int_rx;
+struct serial_device uart2 =
+{
+	UART1,
+	&uart2_int_rx,
+	RT_NULL
+};
+struct rt_device uart2_device;
+
+struct serial_int_rx uart3_int_rx;
+struct serial_device uart3 =
+{
+	UART2,
+	&uart3_int_rx,
+	RT_NULL
+};
+struct rt_device uart3_device;
+
+struct serial_int_rx uart4_int_rx;
+struct serial_device uart4 =
+{
+	UART3,
+	&uart4_int_rx,
+	RT_NULL
+};
+struct rt_device uart4_device;
 
 
 /**
@@ -57,70 +94,131 @@ struct rt_device uart0_device;
  */
 void rt_serial_handler(int vector)
 {
-	#ifdef USE_UART1
 	int status;
-	status = readl(AT91SAM9260_BASE_US1+AT91_US_CSR);
-	if (!(status & readl(AT91SAM9260_BASE_US1+AT91_US_IMR)))
+
+	switch (vector) 
 	{
-		return;
-	}
+	#ifdef RT_USING_UART0
+	case AT91SAM9260_ID_US0:
+		status = readl(AT91SAM9260_BASE_US0+AT91_US_CSR);
+		if (!(status & readl(AT91SAM9260_BASE_US0+AT91_US_IMR)))
+		{
+			return;
+		}
+		rt_hw_serial_isr(&uart1_device);
+		break;
+	#endif
+	#ifdef RT_USING_UART1
+	case AT91SAM9260_ID_US1:
+		status = readl(AT91SAM9260_BASE_US1+AT91_US_CSR);
+		if (!(status & readl(AT91SAM9260_BASE_US1+AT91_US_IMR)))
+		{
+			return;
+		}
+		rt_hw_serial_isr(&uart2_device);
+		break;
 	#endif
-	#ifdef USE_UART3
-	at91_sys_read(AT91_USART3+AT91_US_CSR);
+	#ifdef RT_USING_UART2
+	case AT91SAM9260_ID_US2:
+		status = readl(AT91SAM9260_BASE_US2+AT91_US_CSR);
+		if (!(status & readl(AT91SAM9260_BASE_US2+AT91_US_IMR)))
+		{
+			return;
+		}
+		rt_hw_serial_isr(&uart3_device);
+		break;
 	#endif
-	rt_hw_serial_isr(&uart0_device);
+	#ifdef RT_USING_UART3
+	case AT91SAM9260_ID_US3:
+		status = readl(AT91SAM9260_BASE_US3+AT91_US_CSR);
+		if (!(status & readl(AT91SAM9260_BASE_US3+AT91_US_IMR)))
+		{
+			return;
+		}
+		rt_hw_serial_isr(&uart4_device);
+		break;
+	#endif
+	default: break;
+	}
 
 }
 
+void uart_port_init(rt_uint32_t base)
+{
+	#define BAUDRATE  115200
+	rt_uint32_t  cd;
+
+	writel(AT91_US_RSTTX | AT91_US_RSTRX | 
+	       AT91_US_RXDIS | AT91_US_TXDIS, 
+	       base + AT91_US_CR);
+	writel( AT91_US_USMODE_NORMAL | AT91_US_USCLKS_MCK | 
+		AT91_US_CHRL_8 | AT91_US_PAR_NONE | 
+		AT91_US_NBSTOP_1 | AT91_US_CHMODE_NORMAL, 
+		base + AT91_US_MR);
+	cd = (clk_get_rate(clk_get("mck")) / 16 + BAUDRATE/2) / BAUDRATE;
+	writel(cd, base + AT91_US_BRGR);
+	writel(AT91_US_RXEN | AT91_US_TXEN, base + AT91_US_CR);
+	
+	writel(0x1, base + AT91_US_IER);
+}
+
 /**
  * This function will handle init uart
  */
 void rt_hw_uart_init(void)
 {
-	rt_uint32_t  cd;
-	#ifdef USE_UART1
-	#define BAUDRATE  115200
-	//rt_uint32_t	uart_rate;
-	//at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOB);
+#ifdef RT_USING_UART0
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_US0);
+	at91_sys_write(AT91_PIOB + PIO_IDR, (1<<4)|(1<<5));
+	at91_sys_write(AT91_PIOB + PIO_PUER, (1<<4));
+	at91_sys_write(AT91_PIOB + PIO_PUDR, (1<<5));
+	at91_sys_write(AT91_PIOB + PIO_ASR, (1<<4)|(1<<5));
+	at91_sys_write(AT91_PIOB + PIO_PDR, (1<<4)|(1<<5));
+	uart_port_init(AT91SAM9260_BASE_US0);
+	/* install interrupt handler */
+	rt_hw_interrupt_install(AT91SAM9260_ID_US0, rt_serial_handler, RT_NULL);
+	rt_hw_interrupt_umask(AT91SAM9260_ID_US0);
+#endif
+#ifdef RT_USING_UART1
 	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_US1);
 	at91_sys_write(AT91_PIOB + PIO_IDR, (1<<6)|(1<<7));
 	at91_sys_write(AT91_PIOB + PIO_PUER, (1<<6));
 	at91_sys_write(AT91_PIOB + PIO_PUDR, (1<<7));
 	at91_sys_write(AT91_PIOB + PIO_ASR, (1<<6)|(1<<7));
 	at91_sys_write(AT91_PIOB + PIO_PDR, (1<<6)|(1<<7));
-	writel(AT91_US_RSTTX | AT91_US_RSTRX | AT91_US_RXDIS | AT91_US_TXDIS, AT91SAM9260_BASE_US1 + AT91_US_CR);
-	writel( AT91_US_USMODE_NORMAL | AT91_US_USCLKS_MCK | AT91_US_CHRL_8 | AT91_US_PAR_NONE | AT91_US_NBSTOP_1 | AT91_US_CHMODE_NORMAL, AT91SAM9260_BASE_US1 + AT91_US_MR);//0x100108c0
-	//at91_sys_write(AT91_USART1 + AT91_US_MR, 0x000008c0);//0x100108c0
-	cd = (clk_get_rate(clk_get("mck")) / 16 + BAUDRATE/2) / BAUDRATE;
-	writel(cd, AT91SAM9260_BASE_US1 + AT91_US_BRGR);
-	writel(AT91_US_RXEN | AT91_US_TXEN, AT91SAM9260_BASE_US1 + AT91_US_CR);
-	
-	writel(0x1, AT91SAM9260_BASE_US1 + AT91_US_IER);
+	uart_port_init(AT91SAM9260_BASE_US1);
 	/* install interrupt handler */
 	rt_hw_interrupt_install(AT91SAM9260_ID_US1, rt_serial_handler, RT_NULL);
 	rt_hw_interrupt_umask(AT91SAM9260_ID_US1);
-	#endif
-	#ifdef USE_UART3
-	#define BAUDRATE  115200
-	//rt_uint32_t	uart_rate;
+#endif
+#ifdef RT_USING_UART2
+	at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_US2);
+	at91_sys_write(AT91_PIOB + PIO_IDR, (1<<8)|(1<<9));
+	at91_sys_write(AT91_PIOB + PIO_PUER, (1<<8));
+	at91_sys_write(AT91_PIOB + PIO_PUDR, (1<<9));
+	at91_sys_write(AT91_PIOB + PIO_ASR, (1<<8)|(1<<9));
+	at91_sys_write(AT91_PIOB + PIO_PDR, (1<<8)|(1<<9));
+	uart_port_init(AT91SAM9260_BASE_US2);
+	/* install interrupt handler */
+	rt_hw_interrupt_install(AT91SAM9260_ID_US2, rt_serial_handler, RT_NULL);
+	rt_hw_interrupt_umask(AT91SAM9260_ID_US2);
+#endif
+#ifdef RT_USING_UART3
 	at91_sys_write(AT91_PMC_PCER, 1<<AT91SAM9260_ID_US3);
-	at91_sys_write(AT91_PIOB+0x04, (1<<10)|(1<<11));
-	at91_sys_write(AT91_PIOB+0x70, (1<<10)|(1<<11));
-	writel(AT91_US_RSTTX | AT91_US_RSTRX | AT91_US_RXDIS | AT91_US_TXDIS, AT91SAM9260_BASE_US1 + AT91_US_CR);
-	writel( AT91_US_USMODE_NORMAL | AT91_US_USCLKS_MCK | AT91_US_CHRL_8 | AT91_US_PAR_NONE | AT91_US_NBSTOP_1 | AT91_US_CHMODE_NORMAL, AT91SAM9260_BASE_US3 + AT91_US_MR);
-	cd = (clk_get_rate(clk_get("mck")) / 16 + BAUDRATE/2) / BAUDRATE;
-	writel(cd, AT91SAM9260_BASE_US3 + AT91_US_BRGR);
-	writel(AT91_US_RXEN | AT91_US_TXEN, AT91SAM9260_BASE_US3 + AT91_US_CR);
-	
-	writel(0x1, AT91SAM9260_BASE_US3 + AT91_US_IER);
+	at91_sys_write(AT91_PIOB + PIO_IDR, (1<<10)|(1<<11));
+	at91_sys_write(AT91_PIOB + PIO_PUER, (1<<10));
+	at91_sys_write(AT91_PIOB + PIO_PUDR, (1<<11));
+	at91_sys_write(AT91_PIOB + PIO_ASR, (1<<10)|(1<<11));
+	at91_sys_write(AT91_PIOB + PIO_PDR, (1<<10)|(1<<11));
+	uart_port_init(AT91SAM9260_BASE_US3);
 	/* install interrupt handler */
 	rt_hw_interrupt_install(AT91SAM9260_ID_US3, rt_serial_handler, RT_NULL);
 	rt_hw_interrupt_umask(AT91SAM9260_ID_US3);
 	
-	#endif
-	#ifdef USE_DBGU
+#endif
+#ifdef RT_USING_DBGU
 	#define BAUDRATE  115200
-	//rt_uint32_t  cd;
+	rt_uint32_t  cd;
 	at91_sys_write(AT91_PIOB + PIO_IDR, (1<<14)|(1<<15));
 	//at91_sys_write(AT91_PIOB + PIO_PUER, (1<<6));
 	at91_sys_write(AT91_PIOB + PIO_PUDR, (1<<14)|(1<<15));
@@ -136,7 +234,7 @@ void rt_hw_uart_init(void)
 	
 	at91_sys_read(AT91_DBGU + AT91_US_CSR); //read for clearing interrupt
 	at91_sys_write(AT91_DBGU + AT91_US_IER, 0x1);
-	#endif
+#endif
 }
 
 #define PIT_CPIV(x)	((x) & AT91_PIT_CPIV)
@@ -150,10 +248,10 @@ static rt_uint32_t pit_cnt;		/* access only w/system irq blocked */
  */
 void rt_timer_handler(int vector)
 {
-	#ifdef USE_DBGU
+	#ifdef RT_USING_DBGU
 	if (at91_sys_read(AT91_DBGU + AT91_US_CSR) & 0x1) {
 		//rt_kprintf("DBGU interrupt occur\n");
-		rt_serial_handler(1);
+		rt_hw_serial_isr(&uart0_device);
 	}
 	#endif
 	if (at91_sys_read(AT91_PIT_SR) & AT91_PIT_PITS) {

bsp/at91sam9260/rtconfig.h

@@ -118,6 +118,12 @@
 
 //#define RT_USING_LED
 
+#define RT_USING_DBGU
+/* #define RT_USING_UART0 */
+/* #define RT_USING_UART1 */
+/* #define RT_USING_UART2 */
+/* #define RT_USING_UART3 */
+
 /* SECTION: lwip, a lightweight TCP/IP protocol stack */
 /* Using lightweight TCP/IP protocol stack */
 #define RT_USING_LWIP

bsp/at91sam9260/startup.c

@@ -105,10 +105,40 @@ void rtthread_startup(void)
 	rt_system_scheduler_init();
 
 #ifdef RT_USING_DEVICE
-	/* register uart1 */
+#ifdef RT_USING_DBGU
+	/* register dbgu */
 	rt_hw_serial_register(&uart0_device, "uart0",
 		RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM | RT_DEVICE_FLAG_INT_RX,
 		&uart0); 
+#endif
+
+#ifdef RT_USING_UART0
+	/* register uart0 */
+	rt_hw_serial_register(&uart1_device, "uart1",
+		RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM | RT_DEVICE_FLAG_INT_RX,
+		&uart1); 
+#endif
+
+#ifdef RT_USING_UART1
+	/* register uart1 */
+	rt_hw_serial_register(&uart2_device, "uart2",
+		RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM | RT_DEVICE_FLAG_INT_RX,
+		&uart2); 
+#endif
+
+#ifdef RT_USING_UART2
+	/* register uart2 */
+	rt_hw_serial_register(&uart3_device, "uart3",
+		RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM | RT_DEVICE_FLAG_INT_RX,
+		&uart3); 
+#endif
+
+#ifdef RT_USING_UART3
+	/* register uart3 */
+	rt_hw_serial_register(&uart4_device, "uart4",
+		RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM | RT_DEVICE_FLAG_INT_RX,
+		&uart4); 
+#endif
 
 #ifdef RT_USING_DFS
 	//rt_hw_sdcard_init();
@@ -134,8 +164,10 @@ void rtthread_startup(void)
 	/* initialize finsh */
 	finsh_system_init();
 #ifdef RT_USING_DEVICE
+#ifdef RT_USING_DBGU
 	finsh_set_device("uart0");
 #endif
+#endif
 #endif
 
 	/* initialize system timer thread */