[bsp/ls1cdev]

1、uart驱动重写，采用uart驱动框架
2、添加并修改勤为本ls1c_uart
3、开启main为用户程序入口，删除application.c和startup.c,并对初始化部分做相应调整更新。
4、开启dhcp

3 files changed, 508 insertions, 1 deletions

diff --git a/bsp/ls1cdev/libraries/ls1c_regs.h b/bsp/ls1cdev/libraries/ls1c_regs.h
index 630b45ccbe..1f8b60ed17 100644
--- a/bsp/ls1cdev/libraries/ls1c_regs.h
+++ b/bsp/ls1cdev/libraries/ls1c_regs.h
@@ -125,9 +125,20 @@
 
 
 // 串口寄存器
-#define LS1C_UART0_BASE                     (0xbfe40000)
+#define LS1C_UART00_BASE                    (0xbfe40000)
+#define LS1C_UART01_BASE                    (0xbfe41000)
 #define LS1C_UART1_BASE                     (0xbfe44000)
 #define LS1C_UART2_BASE                     (0xbfe48000)
+#define LS1C_UART3_BASE                     (0xbfe4c000)
+#define LS1C_UART4_BASE                     (0xbfe4c400)
+#define LS1C_UART5_BASE                     (0xbfe4c500)
+#define LS1C_UART6_BASE                     (0xbfe4c600)
+#define LS1C_UART7_BASE                     (0xbfe4c700)
+#define LS1C_UART8_BASE                     (0xbfe4c800)
+#define LS1C_UART9_BASE                     (0xbfe4c900)
+#define LS1C_UART10_BASE                    (0xbfe4ca00)
+#define LS1C_UART11_BASE                    (0xbfe4cb00)
+
 
 
 #endif
diff --git a/bsp/ls1cdev/libraries/ls1c_uart.c b/bsp/ls1cdev/libraries/ls1c_uart.c
new file mode 100644
index 0000000000..baa3b6e3ac
--- /dev/null
+++ b/bsp/ls1cdev/libraries/ls1c_uart.c
@@ -0,0 +1,316 @@
+// 串口相关源码
+
+#include <stdio.h>
+#include <stdarg.h>
+#include "ls1c_public.h"
+#include "ls1c_regs.h"
+#include "ls1c_pin.h"
+#include "ls1c_uart.h"
+#include "ls1c_clock.h"
+#include "ls1c.h"
+
+
+// 串口线路状态寄存器的位域
+#define LS1C_UART_LSR_TE                (1 << 6)
+#define LS1C_UART_LSR_TFE               (1 << 5)
+
+
+// 打印缓存的大小
+#define LS1C_UART_PRINT_BUF_SIZE        (256)
+
+
+// 调试串口信息
+ls1c_uart_info_t debug_uart_info = {0};
+
+
+/*
+ * 获取指定串口模块的基地址
+ * @UARTx 串口编号
+ * @ret 基地址
+ */
+void *uart_get_base(ls1c_uart_t UARTx)
+{
+    void *base = NULL;
+
+    switch (UARTx)
+    {
+        case LS1C_UART00:
+            base = (void *)LS1C_UART00_BASE;
+            break;
+        case LS1C_UART01:
+            base = (void *)LS1C_UART01_BASE;
+            break;
+
+        case LS1C_UART1:
+            base = (void *)LS1C_UART1_BASE;
+            break;
+        
+        case LS1C_UART2:
+            base = (void *)LS1C_UART2_BASE;
+            break;
+
+        case LS1C_UART3:
+            base = (void *)LS1C_UART3_BASE;
+            break;
+        
+        case LS1C_UART4:
+            base = (void *)LS1C_UART4_BASE;
+            break;
+
+        case LS1C_UART5:
+            base = (void *)LS1C_UART5_BASE;
+            break;
+
+        case LS1C_UART6:
+            base = (void *)LS1C_UART6_BASE;
+            break;
+
+        case LS1C_UART7:
+            base = (void *)LS1C_UART7_BASE;
+            break;
+
+        case LS1C_UART8:
+            base = (void *)LS1C_UART8_BASE;
+            break;
+
+        case LS1C_UART9:
+            base = (void *)LS1C_UART9_BASE;
+            break;
+
+        case LS1C_UART10:
+            base = (void *)LS1C_UART10_BASE;
+            break;
+
+        case LS1C_UART11:
+            base = (void *)LS1C_UART11_BASE;
+            break;
+
+        default:
+            break;
+    }
+
+    return base;
+}
+
+
+/*
+ * 初始化指定的串口模块
+ * @uart_info_p 串口模块信息
+ */
+void uart_init(ls1c_uart_info_t *uart_info_p)
+{
+    void *uart_base = uart_get_base(uart_info_p->UARTx);
+    unsigned long baudrate_div = 0;
+
+    // 禁止所有中断
+    reg_write_8(0,      uart_base + LS1C_UART_IER_OFFSET);
+    
+    // 接收FIFO的中断申请Trigger为14字节，清空发送和接收FIFO，并复位
+    reg_write_8(0xc3,   uart_base + LS1C_UART_FCR_OFFSET);
+    
+    // 设置波特率
+    reg_write_8(0x80,   uart_base + LS1C_UART_LCR_OFFSET);
+    baudrate_div = clk_get_cpu_rate() / 16 / uart_info_p->baudrate / 2;
+    reg_write_8((baudrate_div >> 8) & 0xff, uart_base + LS1C_UART_MSB_OFFSET);
+    reg_write_8(baudrate_div & 0xff,        uart_base + LS1C_UART_LSB_OFFSET);
+
+    // 8个数据位，1个停止位，无校验
+    reg_write_8(0x03,   uart_base + LS1C_UART_LCR_OFFSET);
+
+    // 使能接收中断
+    if (TRUE == uart_info_p->rx_enable)
+    {
+        reg_write_8(IER_IRxE|IER_ILE , uart_base + LS1C_UART_IER_OFFSET);
+    }
+
+    return ;
+}
+
+
+/*
+ * 判断FIFO是否为空
+ * @uartx 串口号
+ * @ret TRUE or FALSE
+ */
+BOOL uart_is_transmit_empty(ls1c_uart_t uartx)
+{
+    void *uart_base = uart_get_base(uartx);
+    unsigned char status = reg_read_8(uart_base + LS1C_UART_LSR_OFFSET);
+
+    if (status & (LS1C_UART_LSR_TE | LS1C_UART_LSR_TFE))
+    {
+        return TRUE;
+    }
+    else
+    {
+        return FALSE;
+    }
+}
+
+
+/*
+ * 发送一个字节
+ * @uartx 串口号
+ * @ch 待发送的字符串
+ */
+void uart_putc(ls1c_uart_t uartx, unsigned char ch)
+{
+    void *uart_base = uart_get_base(uartx);
+    
+    // 等待
+    while (FALSE == uart_is_transmit_empty(uartx))
+        ;
+
+    // 发送
+    reg_write_8(ch, uart_base + LS1C_UART_DAT_OFFSET);
+
+    return ;
+}
+
+
+/*
+ * 打印一个字符串到指定串口
+ * @uartx 串口号
+ * @str 待打印的字符串
+ */
+void uart_print(ls1c_uart_t uartx, const char *str)
+{
+    while ('\0' != *str)                // 判断是否为字符串结束符
+    {
+        uart_putc(uartx, *str);   // 发送一个字符
+        str++;
+    }
+
+    return ;
+}
+
+
+/*
+ * 初始化串口2
+ */
+void uart2_init(void)
+{
+    unsigned int tx_gpio = 37;
+    unsigned int rx_gpio = 36;
+
+    // 设置复用
+    pin_set_remap(tx_gpio, PIN_REMAP_SECOND);
+    pin_set_remap(rx_gpio, PIN_REMAP_SECOND);
+    
+    // 初始化相关寄存器
+    debug_uart_info.UARTx = LS1C_UART2;
+    debug_uart_info.baudrate = 115200;
+    debug_uart_info.rx_enable = FALSE;  // 调试串口只需要打印(发送)功能，不需要接收功能
+    uart_init(&debug_uart_info);
+
+    return ;
+}
+
+
+/*
+ * 在串口2上打印字符串
+ * @str 待打印的字符串
+ */
+void uart2_print(const char *str)
+{
+    uart_print(LS1C_UART2, str);
+    return ;
+}
+
+
+/*
+ * 在调试串口打印字符串
+ * @str 待打印的字符串
+ */
+void uart_debug_print(const char *str)
+{
+    uart_print(debug_uart_info.UARTx, str);
+    return ;
+}
+
+
+/*
+ * 在调试串口打印一个字符
+ * @ch 待打印的字符
+ */
+void uart_debug_putc(unsigned char ch)
+{
+    uart_putc(debug_uart_info.UARTx, ch);
+    return ;
+}
+
+
+/*
+ * 把中断号转换为串口号
+ * @IRQn 中断号
+ * @ret 串口号
+ */
+ls1c_uart_t uart_irqn_to_uartx(int IRQn)
+{
+    ls1c_uart_t uartx = LS1C_UART2;
+    
+    switch (IRQn)
+    {
+        /* 串口UART00和UART01的中断号还待确定
+        case LS1C_UART00_IRQ:
+            uartx = LS1C_UART00;
+            break;
+
+        case LS1C_UART01_IRQ:
+            uartx = LS1C_UART01;
+            break;
+       */
+
+        case LS1C_UART1_IRQ:
+            uartx = LS1C_UART1;
+            break;
+            
+        case LS1C_UART2_IRQ:
+            uartx = LS1C_UART2;
+            break;
+        
+        case LS1C_UART3_IRQ:
+            uartx = LS1C_UART3;
+            break;
+        
+        case LS1C_UART4_IRQ:
+            uartx = LS1C_UART4;
+            break;
+        
+        case LS1C_UART5_IRQ:
+            uartx = LS1C_UART5;
+            break;
+        
+        case LS1C_UART6_IRQ:
+            uartx = LS1C_UART6;
+            break;
+        
+        case LS1C_UART7_IRQ:
+            uartx = LS1C_UART7;
+            break;
+        
+        case LS1C_UART8_IRQ:
+            uartx = LS1C_UART8;
+            break;
+        
+        case LS1C_UART9_IRQ:
+            uartx = LS1C_UART9;
+            break;
+        
+        case LS1C_UART10_IRQ:
+            uartx = LS1C_UART10;
+            break;
+        
+        case LS1C_UART11_IRQ:
+            uartx = LS1C_UART11;
+            break;
+        
+        default:
+            uartx = LS1C_UART2;
+            break;
+    }
+
+    return uartx;
+}
+
+
diff --git a/bsp/ls1cdev/libraries/ls1c_uart.h b/bsp/ls1cdev/libraries/ls1c_uart.h
new file mode 100644
index 0000000000..7d63033684
--- /dev/null
+++ b/bsp/ls1cdev/libraries/ls1c_uart.h
@@ -0,0 +1,180 @@
+// 串口相关头文件
+
+
+#ifndef __OPENLOONGSON_UART_H
+#define __OPENLOONGSON_UART_H
+
+
+#include "ls1c_public.h"
+
+
+// 串口各寄存器相对基地址的偏移
+#define LS1C_UART_DAT_OFFSET            (0)
+#define LS1C_UART_IER_OFFSET            (1)
+#define LS1C_UART_IIR_OFFSET            (2)
+#define LS1C_UART_FCR_OFFSET            (2)
+#define LS1C_UART_LCR_OFFSET            (3)
+#define LS1C_UART_MCR_OFFSET            (4)
+#define LS1C_UART_LSR_OFFSET            (5)
+#define LS1C_UART_MSR_OFFSET            (6)
+
+#define LS1C_UART_LSB_OFFSET            (0)     // 分频锁存器1
+#define LS1C_UART_MSB_OFFSET            (1)     // 分频锁存器2
+
+/* interrupt enable register */
+#define	IER_IRxE	0x1	/* 接收有效数据中断使能 */
+#define	IER_ITxE	0x2	/* 传输保存寄存器为空中断使能 */
+#define	IER_ILE	    0x4	/* 接收器线路状态中断使能 */
+#define	IER_IME	    0x8	/* Modem状态中断使能 */
+
+/* interrupt identification register */
+#define	IIR_IMASK	0xf	/* mask */
+#define	IIR_RXTOUT	0xc	/* receive timeout */
+#define	IIR_RLS		0x6	/* receive line status */
+#define	IIR_RXRDY	0x4	/* receive ready */
+#define	IIR_TXRDY	0x2	/* transmit ready */
+#define	IIR_NOPEND	0x1	/* nothing */
+#define	IIR_MLSC	0x0	/* modem status */
+#define	IIR_FIFO_MASK	0xc0	/* set if FIFOs are enabled */
+
+/* fifo control register */
+#define	FIFO_ENABLE	0x01	/* enable fifo */
+#define	FIFO_RCV_RST	0x02	/* reset receive fifo */
+#define	FIFO_XMT_RST	0x04	/* reset transmit fifo */
+#define	FIFO_DMA_MODE	0x08	/* enable dma mode */
+#define	FIFO_TRIGGER_1	0x00	/* trigger at 1 char */
+#define	FIFO_TRIGGER_4	0x40	/* trigger at 4 chars */
+#define	FIFO_TRIGGER_8	0x80	/* trigger at 8 chars */
+#define	FIFO_TRIGGER_14	0xc0	/* trigger at 14 chars */
+
+// 线路控制寄存器
+/* character format control register */
+#define	CFCR_DLAB	0x80	/* divisor latch */
+#define	CFCR_SBREAK	0x40	/* send break */
+#define	CFCR_PZERO	0x30	/* zero parity */
+#define	CFCR_PONE	0x20	/* one parity */
+#define	CFCR_PEVEN	0x10	/* even parity */
+#define	CFCR_PODD	0x00	/* odd parity */
+#define	CFCR_PENAB	0x08	/* parity enable */
+#define	CFCR_STOPB	0x04	/* 2 stop bits */
+#define	CFCR_8BITS	0x03	/* 8 data bits */
+#define	CFCR_7BITS	0x02	/* 7 data bits */
+#define	CFCR_6BITS	0x01	/* 6 data bits */
+#define	CFCR_5BITS	0x00	/* 5 data bits */
+
+/* modem control register */
+#define	MCR_LOOPBACK	0x10	/* loopback */
+#define	MCR_IENABLE	0x08	/* output 2 = int enable */
+#define	MCR_DRS		0x04	/* output 1 = xxx */
+#define	MCR_RTS		0x02	/* enable RTS */
+#define	MCR_DTR		0x01	/* enable DTR */
+
+/* line status register */
+#define	LSR_RCV_FIFO	0x80	/* error in receive fifo */
+#define	LSR_TSRE	0x40	/* transmitter empty */
+#define	LSR_TXRDY	0x20	/* transmitter ready */
+#define	LSR_BI		0x10	/* break detected */
+#define	LSR_FE		0x08	/* framing error */
+#define	LSR_PE		0x04	/* parity error */
+#define	LSR_OE		0x02	/* overrun error */
+#define	LSR_RXRDY	0x01	/* receiver ready */
+#define	LSR_RCV_MASK	0x1f
+
+
+// 串口模块编号
+typedef enum
+{
+    LS1C_UART00 = 0,        // 全功能串口UART0可以分为两个四线串口UART00和UART01
+    LS1C_UART01,
+    LS1C_UART1,
+    LS1C_UART2,
+    LS1C_UART3,
+    LS1C_UART4,
+    LS1C_UART5,
+    LS1C_UART6,
+    LS1C_UART7,
+    LS1C_UART8,
+    LS1C_UART9,
+    LS1C_UART10,
+    LS1C_UART11
+}ls1c_uart_t;
+
+
+// 串口信息
+typedef struct
+{
+    ls1c_uart_t UARTx;              // 串口模块编号
+    unsigned int baudrate;          // 波特率
+    BOOL rx_enable;                 // 是否需要使用串口接收数据(使能接收中断)，发送默认使能
+}ls1c_uart_info_t;
+
+
+
+/*
+ * 获取指定串口模块的基地址
+ * @UARTx 串口编号
+ * @ret 基地址
+ */
+void *uart_get_base(ls1c_uart_t UARTx);
+
+
+/*
+ * 初始化指定的串口模块
+ * @uart_info_p 串口模块信息
+ */
+void uart_init(ls1c_uart_info_t *uart_info_p);
+
+
+/*
+ * 初始化串口2
+ */
+void uart2_init(void);
+
+
+/*
+ * 在串口2上打印字符串
+ * @str 待打印的字符串
+ */
+void uart2_print(const char *str);
+
+
+/*
+ * 在调试串口打印字符串
+ * @str 待打印的字符串
+ */
+void uart_debug_print(const char *str);
+
+
+/*
+ * 在调试串口打印一个字符
+ * @ch 待打印的字符
+ */
+void uart_debug_putc(unsigned char ch);
+
+
+/*
+ * 把中断号转换为串口号
+ * @IRQn 中断号
+ * @ret 串口号
+ */
+ls1c_uart_t uart_irqn_to_uartx(int IRQn);
+
+
+/*
+ * 发送一个字节
+ * @uartx 串口号
+ * @ch 待发送的字符串
+ */
+void uart_putc(ls1c_uart_t uartx, unsigned char ch);
+
+
+/*
+ * 打印一个字符串到指定串口
+ * @uartx 串口号
+ * @str 待打印的字符串
+ */
+void uart_print(ls1c_uart_t uartx, const char *str);
+
+
+#endif
+