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rt-thread
提交 f1e6f2f6 编写于 作者: D dzzxzz@gmail.com
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delete the useless files and update the file headers 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2186 bbd45198-f89e-11dd-88c7-29a3b14d5316
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bsp/ls1bdev/application.c 已删除 100644 → 0
浏览文件 @ aea59143
/*
* File : application.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Develop Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2010-06-25 Bernard first version
* 2011-08-08 lgnq modified for Loongson LS1B
*/
#include <rtthread.h>
#include <ls1b.h>
#ifdef RT_USING_RTGUI
#include <rtgui/rtgui.h>
extern void rt_hw_dc_init(void);
#endif
void rt_init_thread_entry(void* parameter)
{
#ifdef RT_USING_RTGUI
{
rt_device_t dc;
/* init Display Controller */
rt_hw_dc_init();
/* re-init device driver */
rt_device_init_all();
/* find Display Controller device */
dc = rt_device_find("dc");
/* set Display Controller device as rtgui graphic driver */
rtgui_graphic_set_device(dc);
/* startup rtgui */
rtgui_startup();
}
#endif
}
int rt_application_init()
{
rt_thread_t tid;
/* create initialization thread */
tid = rt_thread_create("init",
rt_init_thread_entry, RT_NULL,
4096, 8, 20);
if (tid != RT_NULL)
rt_thread_startup(tid);
return 0;
}
bsp/ls1bdev/board.c 已删除 100644 → 0
浏览文件 @ aea59143
/*
* File : board.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Develop Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2010-06-25 Bernard first version
* 2011-08-08 lgnq modified for Loongson LS1B
*/
#include <rtthread.h>
#include <rthw.h>
#include "board.h"
#include "uart.h"
#include "ls1b.h"
/**
* @addtogroup Loongson LS1B
*/
/*@{*/
/**
* This is the timer interrupt service routine.
*/
void rt_hw_timer_handler(void)
{
unsigned int count;
count = read_c0_compare();
write_c0_compare(count);
write_c0_count(0);
/* increase a OS tick */
rt_tick_increase();
}
/**
* This function will initial OS timer
*/
void rt_hw_timer_init(void)
{
write_c0_compare(CPU_HZ/2/RT_TICK_PER_SECOND);
write_c0_count(0);
}
/**
* This function will initial sam7s64 board.
*/
void rt_hw_board_init(void)
{
#ifdef RT_USING_UART
/* init hardware UART device */
rt_hw_uart_init();
#endif
#ifdef RT_USING_CONSOLE
/* set console device */
rt_console_set_device("uart0");
#endif
/* init operating system timer */
rt_hw_timer_init();
rt_kprintf("current sr: 0x%08x\n", read_c0_status());
}
/* UART line status register value */
#define UARTLSR_ERROR (1 << 7)
#define UARTLSR_TE (1 << 6)
#define UARTLSR_TFE (1 << 5)
#define UARTLSR_BI (1 << 4)
#define UARTLSR_FE (1 << 3)
#define UARTLSR_PE (1 << 2)
#define UARTLSR_OE (1 << 1)
#define UARTLSR_DR (1 << 0)
void rt_hw_console_output(const char* ptr)
{
/* stream mode */
while (*ptr)
{
if (*ptr == '\n')
{
/* FIFO status, contain valid data */
while (!(UART_LSR(UART0_BASE) & (UARTLSR_TE | UARTLSR_TFE)));
/* write data */
UART_DAT(UART0_BASE) = '\r';
}
/* FIFO status, contain valid data */
while (!(UART_LSR(UART0_BASE) & (UARTLSR_TE | UARTLSR_TFE)));
/* write data */
UART_DAT(UART0_BASE) = *ptr;
ptr ++;
}
}
/*@}*/
bsp/ls1bdev/board.h 已删除 100644 → 0
浏览文件 @ aea59143
/*
* File : board.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Develop Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2010-06-25 Bernard first version
* 2011-08-08 lgnq modified for Loongson LS1B
*/
#ifndef __BOARD_H__
#define __BOARD_H__
void rt_hw_board_init(void);
/* 64M SDRAM */
#define RT_HW_HEAP_END (0x80000000 + 64 * 1024 * 1024)
#define CPU_HZ (125 * 1000000)
#endif
bsp/ls1bdev/display_controller.c 已删除 100644 → 0
浏览文件 @ aea59143
/*
* File : display_controller.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Develop Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2011-08-09 lgnq first version for LS1B DC
*/
#include <rtthread.h>
#include "display_controller.h"
struct vga_struct vga_mode[] =
{
{/*"640x480_70.00"*/ 28560, 640, 664, 728, 816, 480, 481, 484, 500, },
{/*"640x640_60.00"*/ 33100, 640, 672, 736, 832, 640, 641, 644, 663, },
{/*"640x768_60.00"*/ 39690, 640, 672, 736, 832, 768, 769, 772, 795, },
{/*"640x800_60.00"*/ 42130, 640, 680, 744, 848, 800, 801, 804, 828, },
{/*"800x480_70.00"*/ 35840, 800, 832, 912, 1024, 480, 481, 484, 500, },
{/*"800x600_60.00"*/ 38220, 800, 832, 912, 1024, 600, 601, 604, 622, },
{/*"800x640_60.00"*/ 40730, 800, 832, 912, 1024, 640, 641, 644, 663, },
{/*"832x600_60.00"*/ 40010, 832, 864, 952, 1072, 600, 601, 604, 622, },
{/*"832x608_60.00"*/ 40520, 832, 864, 952, 1072, 608, 609, 612, 630, },
{/*"1024x480_60.00"*/ 38170, 1024, 1048, 1152, 1280, 480, 481, 484, 497, },
{/*"1024x600_60.00"*/ 48960, 1024, 1064, 1168, 1312, 600, 601, 604, 622, },
{/*"1024x640_60.00"*/ 52830, 1024, 1072, 1176, 1328, 640, 641, 644, 663, },
{/*"1024x768_60.00"*/ 64110, 1024, 1080, 1184, 1344, 768, 769, 772, 795, },
{/*"1152x764_60.00"*/ 71380, 1152, 1208, 1328, 1504, 764, 765, 768, 791, },
{/*"1280x800_60.00"*/ 83460, 1280, 1344, 1480, 1680, 800, 801, 804, 828, },
{/*"1280x1024_55.00"*/ 98600, 1280, 1352, 1488, 1696, 1024, 1025, 1028, 1057, },
{/*"1440x800_60.00"*/ 93800, 1440, 1512, 1664, 1888, 800, 801, 804, 828, },
{/*"1440x900_67.00"*/ 120280, 1440, 1528, 1680, 1920, 900, 901, 904, 935, },
};
ALIGN(16)
volatile rt_uint16_t _rt_framebuffer[FB_YSIZE][FB_XSIZE];
static struct rt_device_graphic_info _dc_info;
#define abs(x) ((x<0)?(-x):x)
#define min(a,b) ((a<b)?a:b)
int caclulate_freq(long long XIN, long long PCLK)
{
int i;
long long clk, clk1;
int start, end;
int mi;
int pll,ctrl,div,div1,frac;
pll = PLL_FREQ;
ctrl = PLL_DIV_PARAM;
rt_kprintf("pll=0x%x, ctrl=0x%x\n", pll, ctrl);
// rt_kprintf("cpu freq is %d\n", tgt_pipefreq());
start = -1;
end = 1;
for (i=start; i<=end; i++)
{
clk = (12+i+(pll&0x3f))*33333333/2;
div = clk/(long)PCLK/1000;
clk1 = (12+i+1+(pll&0x3f))*33333333/2;
div1 = clk1/(long)PCLK/1000;
if (div!=div1)
break;
}
if (div!=div1)
{
frac = ((PCLK*1000*div1)*2*1024/33333333 - (12+i+(pll&0x3f))*1024)&0x3ff;
pll = (pll & ~0x3ff3f)|(frac<<8)|((pll&0x3f)+i);
ctrl = ctrl&~(0x1f<<26)|(div1<<26)|(1<<31);
}
else
{
clk = (12+start+(pll&0x3f))*33333333/2;
clk1 = (12+end+(pll&0x3f))*33333333/2;
if (abs((long)clk/div/1000-PCLK)<abs((long)clk1/(div+1)/1000-PCLK))
{
pll = (pll & ~0x3ff3f)|((pll&0x3f)+start);
ctrl = ctrl&~(0x1f<<26)|(div<<26)|(1<<31);
}
else
{
pll = (pll & ~0x3ff3f)|((pll&0x3f)+end);
ctrl = ctrl&~(0x1f<<26)|((div+1)<<26)|(1<<31);
}
}
rt_kprintf("new pll=0x%x, ctrl=0x%x\n", pll, ctrl);
ctrl |= 0x2a00;
PLL_DIV_PARAM = ctrl;
PLL_FREQ = pll;
rt_thread_delay(10);
// initserial(0);
// _probe_frequencies();
// rt_kprintf("cpu freq is %d\n",tgt_pipefreq());
return 0;
}
static rt_err_t rt_dc_init(rt_device_t dev)
{
int i, out, mode=-1;
int val;
for (i=0; i<sizeof(vga_mode)/sizeof(struct vga_struct); i++)
{
if (vga_mode[i].hr == FB_XSIZE && vga_mode[i].vr == FB_YSIZE)
{
mode=i;
#ifdef LS1FSOC
// out = caclulatefreq(APB_CLK/1000,vga_mode[i].pclk);
// rt_kprintf("out=%x\n",out);
/*inner gpu dc logic fifo pll ctrl,must large then outclk*/
// *(volatile int *)0xbfd00414 = out+1;
/*output pix1 clock pll ctrl*/
// *(volatile int *)0xbfd00410 = out;
/*output pix2 clock pll ctrl */
// *(volatile int *)0xbfd00424 = out;
#else
caclulate_freq(APB_CLK/1000, vga_mode[i].pclk);
#endif
break;
}
}
if (mode<0)
{
rt_kprintf("\n\n\nunsupported framebuffer resolution\n\n\n");
return;
}
DC_FB_CONFIG = 0x0;
DC_FB_CONFIG = 0x3; // // framebuffer configuration RGB565
DC_FB_BUFFER_ADDR0 = (rt_uint32_t)_rt_framebuffer - 0x80000000;
DC_FB_BUFFER_ADDR1 = (rt_uint32_t)_rt_framebuffer - 0x80000000;
DC_DITHER_CONFIG = 0x0;
DC_DITHER_TABLE_LOW = 0x0;
DC_DITHER_TABLE_HIGH = 0x0;
DC_PANEL_CONFIG = 0x80001311;
DC_PANEL_TIMING = 0x0;
DC_HDISPLAY = (vga_mode[mode].hfl<<16) | vga_mode[mode].hr;
DC_HSYNC = 0x40000000 | (vga_mode[mode].hse<<16) | vga_mode[mode].hss;
DC_VDISPLAY = (vga_mode[mode].vfl<<16) | vga_mode[mode].vr;
DC_VSYNC = 0x40000000 | (vga_mode[mode].vse<<16) | vga_mode[mode].vss;
#if defined(CONFIG_VIDEO_32BPP)
DC_FB_CONFIG = 0x00100104;
DC_FB_BUFFER_STRIDE = FB_XSIZE*4;
#elif defined(CONFIG_VIDEO_16BPP)
DC_FB_CONFIG = 0x00100103;
DC_FB_BUFFER_STRIDE = (FB_XSIZE*2+255)&(~255);
#elif defined(CONFIG_VIDEO_15BPP)
DC_FB_CONFIG = 0x00100102;
DC_FB_BUFFER_STRIDE = FB_XSIZE*2;
#elif defined(CONFIG_VIDEO_12BPP)
DC_FB_CONFIG = 0x00100101;
DC_FB_BUFFER_STRIDE = FB_XSIZE*2;
#else //640x480-32Bits
DC_FB_CONFIG = 0x00100104;
DC_FB_BUFFER_STRIDE = FB_XSIZE*4;
#endif //32Bits
#ifdef LS1GSOC
/*fix ls1g dc
*first switch to tile mode
*change origin register to 0
*goback nomal mode
*/
{
val = DC_FB_CONFIG;
DC_FB_CONFIG = val | 0x10;
DC_FB_BUFFER_ORIGIN = 0;
DC_FB_BUFFER_ORIGIN;
rt_thread_delay(10);
DC_FB_CONFIG;
DC_FB_CONFIG = val;
}
#endif
return RT_EOK;
}
static rt_err_t rt_dc_control(rt_device_t dev, rt_uint8_t cmd, void *args)
{
switch (cmd)
{
case RTGRAPHIC_CTRL_RECT_UPDATE:
break;
case RTGRAPHIC_CTRL_POWERON:
break;
case RTGRAPHIC_CTRL_POWEROFF:
break;
case RTGRAPHIC_CTRL_GET_INFO:
rt_memcpy(args, &_dc_info, sizeof(_dc_info));
break;
case RTGRAPHIC_CTRL_SET_MODE:
break;
}
return RT_EOK;
}
void rt_hw_dc_init(void)
{
rt_device_t dc = rt_malloc(sizeof(struct rt_device));
if (dc == RT_NULL)
{
rt_kprintf("dc == RT_NULL\n");
return; /* no memory yet */
}
_dc_info.bits_per_pixel = 16;
_dc_info.pixel_format = RTGRAPHIC_PIXEL_FORMAT_RGB565P;
_dc_info.framebuffer = (rt_uint8_t*)HW_FB_ADDR;
_dc_info.width = FB_XSIZE;
_dc_info.height = FB_YSIZE;
/* init device structure */
dc->type = RT_Device_Class_Graphic;
dc->init = rt_dc_init;
dc->open = RT_NULL;
dc->close = RT_NULL;
dc->control = rt_dc_control;
dc->user_data = (void*)&_dc_info;
/* register Display Controller device to RT-Thread */
rt_device_register(dc, "dc", RT_DEVICE_FLAG_RDWR);
}
bsp/ls1bdev/display_controller.h 已删除 100644 → 0
浏览文件 @ aea59143
/*
* File : display_controller.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Develop Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2011-08-08 lgnq first version for LS1B
*/
#ifndef __DISPLAY_CONTROLLER_H__
#define __DISPLAY_CONTROLLER_H__
#include <rtthread.h>
#include "ls1b.h"
#define DC_BASE 0xBC301240 //Display Controller
/* Frame Buffer registers */
#define DC_FB_CONFIG __REG32(DC_BASE + 0x000)
#define DC_FB_BUFFER_ADDR0 __REG32(DC_BASE + 0x020)
#define DC_FB_BUFFER_STRIDE __REG32(DC_BASE + 0x040)
#define DC_FB_BUFFER_ORIGIN __REG32(DC_BASE + 0x060)
#define DC_DITHER_CONFIG __REG32(DC_BASE + 0x120)
#define DC_DITHER_TABLE_LOW __REG32(DC_BASE + 0x140)
#define DC_DITHER_TABLE_HIGH __REG32(DC_BASE + 0x160)
#define DC_PANEL_CONFIG __REG32(DC_BASE + 0x180)
#define DC_PANEL_TIMING __REG32(DC_BASE + 0x1A0)
#define DC_HDISPLAY __REG32(DC_BASE + 0x1C0)
#define DC_HSYNC __REG32(DC_BASE + 0x1E0)
#define DC_VDISPLAY __REG32(DC_BASE + 0x240)
#define DC_VSYNC __REG32(DC_BASE + 0x260)
#define DC_FB_BUFFER_ADDR1 __REG32(DC_BASE + 0x340)
/* Display Controller driver for 1024x768 16bit */
#define FB_XSIZE 1024
#define FB_YSIZE 768
#define CONFIG_VIDEO_16BPP
#define APB_CLK 33333333
#define K1BASE 0xA0000000
#define KSEG1(addr) ((void *)(K1BASE | (rt_uint32_t)(addr)))
#define HW_FB_ADDR KSEG1(_rt_framebuffer)
#define HW_FB_PIXEL(x, y) *(volatile rt_uint16_t*)((rt_uint8_t*)HW_FB_ADDR + (y * FB_XSIZE * 2) + x * 2)
struct vga_struct
{
long pclk;
int hr,hss,hse,hfl;
int vr,vss,vse,vfl;
};
#endif
bsp/ls1bdev/drivers/board.c
浏览文件 @ f1e6f2f6
/* /*
* File : board.c * File : board.c
* This file is part of RT-Thread RTOS * This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Develop Team * COPYRIGHT (C) 2006-2012, RT-Thread Develop Team
* *
* The license and distribution terms for this file may be * The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at * found in the file LICENSE in this distribution or at
...@@ -80,7 +80,7 @@ void rt_hw_board_init(void) ...@@ -80,7 +80,7 @@ void rt_hw_board_init(void)
#define UARTLSR_PE (1 << 2) #define UARTLSR_PE (1 << 2)
#define UARTLSR_OE (1 << 1) #define UARTLSR_OE (1 << 1)
#define UARTLSR_DR (1 << 0) #define UARTLSR_DR (1 << 0)
void rt_hw_console_output(const char* ptr) void rt_hw_console_output(const char *ptr)
{ {
/* stream mode */ /* stream mode */
while (*ptr) while (*ptr)
......
bsp/ls1bdev/drivers/board.h
浏览文件 @ f1e6f2f6
/* /*
* File : board.h * File : board.h
* This file is part of RT-Thread RTOS * This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Develop Team * COPYRIGHT (C) 2006-2012, RT-Thread Develop Team
* *
* The license and distribution terms for this file may be * The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at * found in the file LICENSE in this distribution or at
......
bsp/ls1bdev/drivers/display_controller.c
浏览文件 @ f1e6f2f6
/* /*
* File : display_controller.c * File : display_controller.c
* This file is part of RT-Thread RTOS * This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Develop Team * COPYRIGHT (C) 2006-2012, RT-Thread Develop Team
* *
* The license and distribution terms for this file may be * The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at * found in the file LICENSE in this distribution or at
......
bsp/ls1bdev/drivers/display_controller.h
浏览文件 @ f1e6f2f6
/* /*
* File : display_controller.h * File : display_controller.h
* This file is part of RT-Thread RTOS * This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Develop Team * COPYRIGHT (C) 2006-2012, RT-Thread Develop Team
* *
* The license and distribution terms for this file may be * The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at * found in the file LICENSE in this distribution or at
......
bsp/ls1bdev/drivers/uart.c
浏览文件 @ f1e6f2f6
...@@ -41,7 +41,7 @@ static void rt_uart_irqhandler(int irqno) ...@@ -41,7 +41,7 @@ static void rt_uart_irqhandler(int irqno)
{ {
rt_ubase_t level; rt_ubase_t level;
rt_uint8_t isr; rt_uint8_t isr;
struct rt_uart_ls1b* uart = &uart_device; struct rt_uart_ls1b *uart = &uart_device;
/* read interrupt status and clear it */ /* read interrupt status and clear it */
isr = UART_IIR(uart->hw_base); isr = UART_IIR(uart->hw_base);
......
bsp/ls1bdev/drivers/uart.h
浏览文件 @ f1e6f2f6
/* /*
* File : uart.h * File : uart.h
* This file is part of RT-Thread RTOS * This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Develop Team * COPYRIGHT (C) 2006-2012, RT-Thread Develop Team
* *
* The license and distribution terms for this file may be * The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at * found in the file LICENSE in this distribution or at
...@@ -11,6 +11,7 @@ ...@@ -11,6 +11,7 @@
* Date Author Notes * Date Author Notes
* 2011-08-08 lgnq first version for LS1B * 2011-08-08 lgnq first version for LS1B
*/ */
#ifndef __UART_H__ #ifndef __UART_H__
#define __UART_H__ #define __UART_H__
......
bsp/ls1bdev/startup.c 已删除 100644 → 0
浏览文件 @ aea59143
/*
* File : startup.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Develop Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2010-06-25 Bernard first version
* 2011-08-08 lgnq modified for Loongson LS1B
*/
#include <rthw.h>
#include <rtthread.h>
#include "board.h"
#define A_K0BASE 0x80000000
/**
* @addtogroup Loongson LS1B
*/
/*@{*/
extern unsigned char __bss_end;
extern int rt_application_init(void);
extern void tlb_refill_exception(void);
extern void general_exception(void);
extern void irq_exception(void);
/**
* This function will startup RT-Thread RTOS.
*/
void rtthread_startup(void)
{
/* disable interrupt first */
rt_hw_interrupt_disable();
/* init cache */
rt_hw_cache_init();
/* init hardware interrupt */
rt_hw_interrupt_init();
/* copy vector */
memcpy((void *)A_K0BASE, tlb_refill_exception, 0x20);
memcpy((void *)(A_K0BASE + 0x180), general_exception, 0x20);
memcpy((void *)(A_K0BASE + 0x200), irq_exception, 0x20);
/* init board */
rt_hw_board_init();
rt_show_version();
/* init tick */
rt_system_tick_init();
/* init timer system */
rt_system_timer_init();
#ifdef RT_USING_HEAP
rt_system_heap_init((void*)&__bss_end, (void*)RT_HW_HEAP_END);
#endif
/* init scheduler system */
rt_system_scheduler_init();
#ifdef RT_USING_DEVICE
/* init all device */
rt_device_init_all();
#endif
/* init application */
rt_application_init();
#ifdef RT_USING_FINSH
/* init finsh */
finsh_system_init();
finsh_set_device(FINSH_DEVICE_NAME);
#endif
/* init idle thread */
rt_thread_idle_init();
/* start scheduler */
rt_system_scheduler_start();
/* never reach here */
return ;
}
/*@}*/
bsp/ls1bdev/uart.c 已删除 100644 → 0
浏览文件 @ aea59143
/*
* File : board.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Develop Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2011-08-08 lgnq first version
*/
#include <rthw.h>
#include <rtthread.h>
#include "uart.h"
/**
* @addtogroup Loongson LS1B
*/
/*@{*/
#if defined(RT_USING_UART) && defined(RT_USING_DEVICE)
struct rt_uart_ls1b
{
struct rt_device parent;
rt_uint32_t hw_base;
rt_uint32_t irq;
/* buffer for reception */
rt_uint8_t read_index, save_index;
rt_uint8_t rx_buffer[RT_UART_RX_BUFFER_SIZE];
}uart_device;
static void rt_uart_irqhandler(int irqno)
{
rt_ubase_t level;
rt_uint8_t isr;
struct rt_uart_ls1b* uart = &uart_device;
/* read interrupt status and clear it */
isr = UART_IIR(uart->hw_base);
isr = (isr >> 1) & 0x3;
if (isr & 0x02) /* receive data available */
{
/* Receive Data Available */
while (UART_LSR(uart->hw_base) & UARTLSR_DR)
{
uart->rx_buffer[uart->save_index] = UART_DAT(uart->hw_base);
level = rt_hw_interrupt_disable();
uart->save_index ++;
if (uart->save_index >= RT_UART_RX_BUFFER_SIZE)
uart->save_index = 0;
rt_hw_interrupt_enable(level);
}
/* invoke callback */
if(uart->parent.rx_indicate != RT_NULL)
{
rt_size_t length;
if (uart->read_index > uart->save_index)
length = RT_UART_RX_BUFFER_SIZE - uart->read_index + uart->save_index;
else
length = uart->save_index - uart->read_index;
uart->parent.rx_indicate(&uart->parent, length);
}
}
return;
}
static rt_err_t rt_uart_init (rt_device_t dev)
{
rt_uint32_t baud_div;
struct rt_uart_ls1b *uart = (struct rt_uart_ls1b*)dev;
RT_ASSERT(uart != RT_NULL);
#if 0
/* init UART Hardware */
UART_IER(uart->hw_base) = 0; /* clear interrupt */
UART_FCR(uart->hw_base) = 0x60; /* reset UART Rx/Tx */
/* enable UART clock */
/* set databits, stopbits and parity. (8-bit data, 1 stopbit, no parity) */
UART_LCR(uart->hw_base) = 0x3;
/* set baudrate */
baud_div = DEV_CLK / 16 / UART_BAUDRATE;
UART_LCR(uart->hw_base) |= UARTLCR_DLAB;
UART_MSB(uart->hw_base) = (baud_div >> 8) & 0xff;
UART_LSB(uart->hw_base) = baud_div & 0xff;
UART_LCR(uart->hw_base) &= ~UARTLCR_DLAB;
/* Enable UART unit, enable and clear FIFO */
UART_FCR(uart->hw_base) = UARTFCR_UUE | UARTFCR_FE | UARTFCR_TFLS | UARTFCR_RFLS;
#endif
return RT_EOK;
}
static rt_err_t rt_uart_open(rt_device_t dev, rt_uint16_t oflag)
{
struct rt_uart_ls1b *uart = (struct rt_uart_ls1b*)dev;
RT_ASSERT(uart != RT_NULL);
if (dev->flag & RT_DEVICE_FLAG_INT_RX)
{
/* Enable the UART Interrupt */
UART_IER(uart->hw_base) |= UARTIER_IRXE;
/* install interrupt */
rt_hw_interrupt_install(uart->irq, rt_uart_irqhandler, RT_NULL);
rt_hw_interrupt_umask(uart->irq);
}
return RT_EOK;
}
static rt_err_t rt_uart_close(rt_device_t dev)
{
struct rt_uart_ls1b *uart = (struct rt_uart_ls1b*)dev;
RT_ASSERT(uart != RT_NULL);
if (dev->flag & RT_DEVICE_FLAG_INT_RX)
{
/* Disable the UART Interrupt */
UART_IER(uart->hw_base) &= ~(UARTIER_IRXE);
}
return RT_EOK;
}
static rt_size_t rt_uart_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
{
rt_uint8_t* ptr;
struct rt_uart_ls1b *uart = (struct rt_uart_ls1b*)dev;
RT_ASSERT(uart != RT_NULL);
/* point to buffer */
ptr = (rt_uint8_t*) buffer;
if (dev->flag & RT_DEVICE_FLAG_INT_RX)
{
while (size)
{
/* interrupt receive */
rt_base_t level;
/* disable interrupt */
level = rt_hw_interrupt_disable();
if (uart->read_index != uart->save_index)
{
*ptr = uart->rx_buffer[uart->read_index];
uart->read_index ++;
if (uart->read_index >= RT_UART_RX_BUFFER_SIZE)
uart->read_index = 0;
}
else
{
/* no data in rx buffer */
/* enable interrupt */
rt_hw_interrupt_enable(level);
break;
}
/* enable interrupt */
rt_hw_interrupt_enable(level);
ptr ++;
size --;
}
return (rt_uint32_t)ptr - (rt_uint32_t)buffer;
}
return 0;
}
static rt_size_t rt_uart_write(rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
{
char *ptr;
struct rt_uart_ls1b *uart = (struct rt_uart_ls1b*)dev;
RT_ASSERT(uart != RT_NULL);
ptr = (char*)buffer;
if (dev->flag & RT_DEVICE_FLAG_STREAM)
{
/* stream mode */
while (size)
{
if (*ptr == '\n')
{
/* FIFO status, contain valid data */
while (!(UART_LSR(uart->hw_base) & (UARTLSR_TE | UARTLSR_TFE)));
/* write data */
UART_DAT(uart->hw_base) = '\r';
}
/* FIFO status, contain valid data */
while (!(UART_LSR(uart->hw_base) & (UARTLSR_TE | UARTLSR_TFE)));
/* write data */
UART_DAT(uart->hw_base) = *ptr;
ptr ++;
size --;
}
}
else
{
while ( size != 0 )
{
/* FIFO status, contain valid data */
while (!(UART_LSR(uart->hw_base) & (UARTLSR_TE | UARTLSR_TFE)));
/* write data */
UART_DAT(uart->hw_base) = *ptr;
ptr++;
size--;
}
}
return (rt_size_t) ptr - (rt_size_t) buffer;
}
void rt_hw_uart_init(void)
{
struct rt_uart_ls1b* uart;
/* get uart device */
uart = &uart_device;
/* device initialization */
uart->parent.type = RT_Device_Class_Char;
rt_memset(uart->rx_buffer, 0, sizeof(uart->rx_buffer));
uart->read_index = uart->save_index = 0;
#if defined(RT_USING_UART0)
uart->hw_base = UART0_BASE;
uart->irq = LS1B_UART0_IRQ;
#elif defined(RT_USING_UART1)
uart->hw_base = UART1_BASE;
uart->irq = LS1B_UART1_IRQ;
#endif
/* device interface */
uart->parent.init = rt_uart_init;
uart->parent.open = rt_uart_open;
uart->parent.close = rt_uart_close;
uart->parent.read = rt_uart_read;
uart->parent.write = rt_uart_write;
uart->parent.control = RT_NULL;
uart->parent.user_data = RT_NULL;
rt_device_register(&uart->parent, "uart0",
RT_DEVICE_FLAG_RDWR |
RT_DEVICE_FLAG_STREAM |
RT_DEVICE_FLAG_INT_RX);
}
#endif /* end of UART */
/*@}*/
bsp/ls1bdev/uart.h 已删除 100644 → 0
浏览文件 @ aea59143
/*
* File : uart.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006-2011, RT-Thread Develop Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2011-08-08 lgnq first version for LS1B
*/
#ifndef __UART_H__
#define __UART_H__
#include "ls1b.h"
#define UART0_BASE 0xBFE40000
#define UART0_1_BASE 0xBFE41000
#define UART0_2_BASE 0xBFE42000
#define UART0_3_BASE 0xBFE43000
#define UART1_BASE 0xBFE44000
#define UART1_1_BASE 0xBFE45000
#define UART1_2_BASE 0xBFE46000
#define UART1_3_BASE 0xBFE47000
#define UART2_BASE 0xBFE48000
#define UART3_BASE 0xBFE4C000
#define UART4_BASE 0xBFE6C000
#define UART5_BASE 0xBFE7C000
/* UART registers */
#define UART_DAT(base) __REG8(base + 0x00)
#define UART_IER(base) __REG8(base + 0x01)
#define UART_IIR(base) __REG8(base + 0x02)
#define UART_FCR(base) __REG8(base + 0x02)
#define UART_LCR(base) __REG8(base + 0x03)
#define UART_MCR(base) __REG8(base + 0x04)
#define UART_LSR(base) __REG8(base + 0x05)
#define UART_MSR(base) __REG8(base + 0x06)
#define UART_LSB(base) __REG8(base + 0x00)
#define UART_MSB(base) __REG8(base + 0x01)
/* UART0 registers */
#define UART0_DAT __REG8(UART0_BASE + 0x00)
#define UART0_IER __REG8(UART0_BASE + 0x01)
#define UART0_IIR __REG8(UART0_BASE + 0x02)
#define UART0_FCR __REG8(UART0_BASE + 0x02)
#define UART0_LCR __REG8(UART0_BASE + 0x03)
#define UART0_MCR __REG8(UART0_BASE + 0x04)
#define UART0_LSR __REG8(UART0_BASE + 0x05)
#define UART0_MSR __REG8(UART0_BASE + 0x06)
#define UART0_LSB __REG8(UART0_BASE + 0x00)
#define UART0_MSB __REG8(UART0_BASE + 0x01)
/* UART1 registers */
#define UART1_DAT __REG8(UART1_BASE + 0x00)
#define UART1_IER __REG8(UART1_BASE + 0x01)
#define UART1_IIR __REG8(UART1_BASE + 0x02)
#define UART1_FCR __REG8(UART1_BASE + 0x02)
#define UART1_LCR __REG8(UART1_BASE + 0x03)
#define UART1_MCR __REG8(UART1_BASE + 0x04)
#define UART1_LSR __REG8(UART1_BASE + 0x05)
#define UART1_MSR __REG8(UART1_BASE + 0x06)
#define UART1_LSB __REG8(UART1_BASE + 0x00)
#define UART1_MSB __REG8(UART1_BASE + 0x01)
/* UART interrupt enable register value */
#define UARTIER_IME (1 << 3)
#define UARTIER_ILE (1 << 2)
#define UARTIER_ITXE (1 << 1)
#define UARTIER_IRXE (1 << 0)
/* UART line control register value */
#define UARTLCR_DLAB (1 << 7)
#define UARTLCR_BCB (1 << 6)
#define UARTLCR_SPB (1 << 5)
#define UARTLCR_EPS (1 << 4)
#define UARTLCR_PE (1 << 3)
#define UARTLCR_SB (1 << 2)
/* UART line status register value */
#define UARTLSR_ERROR (1 << 7)
#define UARTLSR_TE (1 << 6)
#define UARTLSR_TFE (1 << 5)
#define UARTLSR_BI (1 << 4)
#define UARTLSR_FE (1 << 3)
#define UARTLSR_PE (1 << 2)
#define UARTLSR_OE (1 << 1)
#define UARTLSR_DR (1 << 0)
void rt_hw_uart_init(void);
#endif
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