update IA32 branch for new rt-thread platform.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1948 bbd45198-f89e-11dd-88c7-29a3b14d5316

libcpu/ia32/context.S → libcpu/ia32/context_gcc.S

 /*
- * File      : context.S
+ * File      : context_gcc.S
  * This file is part of RT-Thread RTOS
  * COPYRIGHT (C) 2006, RT-Thread Development Team
  *
  * The license and distribution terms for this file may be
  * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * http://www.rt-thread.org/license/LICENSE
  *
  * Change Logs:
  * Date           Author       Notes

libcpu/ia32/hdisr.S → libcpu/ia32/hdisr_gcc.S

 /*
- * File      : hdisr.S
+ * File      : hdisr_gcc.S
  * This file is part of RT-Thread RTOS
  * COPYRIGHT (C) 2006, RT-Thread Development Team
  *
  * The license and distribution terms for this file may be
  * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * http://www.rt-thread.org/license/LICENSE
  *
  * Change Logs:
  * Date           Author       Notes
+ * 2006-09-15     QiuYi        The first version
  */
 
 /**

libcpu/ia32/include/bsp.h

-/*
- * File      : bsp.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, 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://openlab.rt-thread.com/license/LICENSE
- *
- * Change Logs:
- * Date           Author       Notes
- * 2006-09-15     QiuYi        the first version */
-
-#ifndef __BSP_H_
-#define __BSP_H_
-
-#include <i386.h>
-
-/*******************************************************************/
-/*  Timer Register  */
-/*******************************************************************/
-#define TIMER_CNTR0			(IO_TIMER1 + 0)	/* timer 0 counter port */
-#define TIMER_CNTR1			(IO_TIMER1 + 1)	/* timer 1 counter port */
-#define TIMER_CNTR2			(IO_TIMER1 + 2)	/* timer 2 counter port */
-#define TIMER_MODE			(IO_TIMER1 + 3)	/* timer mode port */
-#define TIMER_SEL0			0x00	/* select counter 0 */
-#define TIMER_SEL1			0x40	/* select counter 1 */
-#define TIMER_INTTC			0x00	/* mode 0, intr on terminal cnt */
-#define TIMER_ONESHOT		0x02	/* mode 1, one shot */
-#define TIMER_RATEGEN		0x04	/* mode 2, rate generator */
-#define TIMER_SQWAVE		0x06	/* mode 3, square wave */
-#define TIMER_SWSTROBE		0x08	/* mode 4, s/w triggered strobe */
-#define TIMER_HWSTROBE		0x0a	/* mode 5, h/w triggered strobe */
-#define TIMER_LATCH			0x00	/* latch counter for reading */
-#define TIMER_LSB			0x10	/* r/w counter LSB */
-#define TIMER_MSB			0x20	/* r/w counter MSB */
-#define TIMER_16BIT			0x30	/* r/w counter 16 bits, LSB first */
-#define TIMER_BCD			0x01	/* count in BCD */
-
-#define TIMER_FREQ			1193182
-#define TIMER_DIV(x)		((TIMER_FREQ+(x)/2)/(x))
-
-#define IO_TIMER1			0x040	/* 8253 Timer #1 */
-
-/*******************************************************************/
-/* Interrupt Controller */
-/*******************************************************************/
-/* these are processor defined */
-#define T_DIVIDE			0		/* divide error */
-#define T_DEBUG	 			1		/* debug exception */
-#define T_NMI				2		/* non-maskable interrupt */
-#define T_BRKPT	 			3		/* breakpoint */
-#define T_OFLOW				4		/* overflow */
-#define T_BOUND	  			5		/* bounds check */
-#define T_ILLOP	  			6		/* illegal opcode */
-#define T_DEVICE	 		7		/* device not available */
-#define T_DBLFLT	 		8		/* double fault */
-/* 9 is reserved */
-#define T_TSS				10		/* invalid task switch segment */
-#define T_SEGNP				11		/* segment not present */
-#define T_STACK	 			12		/* stack exception */
-#define T_GPFLT				13		/* genernal protection fault */
-#define T_PGFLT				14		/* page fault */
-/* 15 is reserved */
-#define T_FPERR	 			16		/* floating point error */
-#define T_ALIGN				17		/* aligment check */
-#define T_MCHK				18		/* machine check */
-#define T_DEFAULT			500		/* catchall */
-
-#define INTTIMER0			0
-#define INTKEYBOARD			1
-#define INTUART0_RX			4
-
-/* I/O Addresses of the two 8259A programmable interrupt controllers */
-#define IO_PIC1 			0x20 	/* Master(IRQs 0-7) */
-#define IO_PIC2 			0xa0	/* Slave(IRQs 8-15) */
-#define IRQ_SLAVE 			0x2		/* IRQ at which slave connects to master */
-#define IRQ_OFFSET 			0x20	/* IRQ 0 corresponds to int IRQ_OFFSET */
-
-#define MAX_HANDLERS		16		/*max number of isr handler*/
-
-/*******************************************************************/
-/* CRT Register */
-/*******************************************************************/
-#define MONO_BASE			0x3b4
-#define MONO_BUF			0xb0000
-#define CGA_BASE			0x3d4
-#define CGA_BUF				0xb8000
-
-#define CRT_ROWS			25
-#define CRT_COLS			80
-#define CRT_SIZE				(CRT_ROWS * CRT_COLS)
-
-/*******************************************************************/
-/* Keyboard Register */
-/*******************************************************************/
-#define	KBSTATP				0x64	/* kbd controller status port(I) */
-#define	KBS_DIB				0x01	/* kbd data in buffer */
-#define	KBDATAP				0x60	/* kbd data port(I) */
-
-/*******************************************************************/
-/* Serial Register */
-/*******************************************************************/
-/*Serial I/O code */
-#define COM1				0x3F8
-#define COMSTATUS			5
-#define COMDATA				0x01
-#define COMREAD				0
-#define COMWRITE			0
-
-/* Bits definition of the Line Status Register (LSR)*/
-#define DR					0x01	/* Data Ready */
-#define OE					0x02	/* Overrun Error */
-#define PE					0x04	/* Parity Error */
-#define FE					0x08	/* Framing Error */
-#define BI					0x10	/* Break Interrupt */
-#define THRE				0x20	/* Transmitter Holding Register Empty */
-#define TEMT				0x40	/* Transmitter Empty */
-#define ERFIFO				0x80	/* Error receive Fifo */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __BSP_H_ */

libcpu/ia32/include/grub.h

-/*
- * File      : grub.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, 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://openlab.rt-thread.com/license/LICENSE
- *
- * Change Logs:
- * Date           Author       Notes
- * 2006-10-09     Bernard      the grub related definitions 
- *                             (multiboot)
- */
-
-#ifndef __GRUB_H__
-#define __GRUB_H__
-
-/* the magic number for the multiboot header.  */
-#define MULTIBOOT_HEADER_MAGIC		0x1BADB002
-
-/* the flags for the multiboot header.  */
-#define MULTIBOOT_HEADER_FLAGS		0x00000003
-
-/* the magic number passed by a multiboot-compliant boot loader.  */
-#define MULTIBOOT_BOOTLOADER_MAGIC	0x2BADB002
-
-#ifndef __ASM__
-/* the multiboot header.  */
-typedef struct multiboot_header
-{
-	unsigned long magic;
-	unsigned long flags;
-	unsigned long checksum;
-	unsigned long header_addr;
-	unsigned long load_addr;
-	unsigned long load_end_addr;
-	unsigned long bss_end_addr;
-	unsigned long entry_addr;
-} multiboot_header_t;
-
-/* the section header table for elf.  */
-typedef struct elf_section_header_table
-{
-	unsigned long num;
-	unsigned long size;
-	unsigned long addr;
-	unsigned long shndx;
-} elf_section_header_table_t;
-
-/* the multiboot information.  */
-typedef struct multiboot_info
-{
-	unsigned long flags;
-	unsigned long mem_lower;
-	unsigned long mem_upper;
-	unsigned long boot_device;
-	unsigned long cmdline;
-	unsigned long mods_count;
-	unsigned long mods_addr;
-	union
-	{
-		aout_symbol_table_t aout_sym;
-		elf_section_header_table_t elf_sec;
-	} u;
-	unsigned long mmap_length;
-	unsigned long mmap_addr;
-} multiboot_info_t;
-
-/* the module structure.  */
-typedef struct module
-{
-	unsigned long mod_start;
-	unsigned long mod_end;
-	unsigned long string;
-	unsigned long reserved;
-} module_t;
-
-/* the memory map. be careful that the offset 0 is base_addr_low
-   but no size.  */
-typedef struct memory_map
-{
-	unsigned long size;
-	unsigned long base_addr_low;
-	unsigned long base_addr_high;
-	unsigned long length_low;
-	unsigned long length_high;
-	unsigned long type;
-} memory_map_t;
-
-#endif
-
-#endif

libcpu/ia32/include/i386.h

-#ifndef __I386_H_
-#define __I386_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-static __inline unsigned char inb(int port)
-{
-	unsigned char data;
-	__asm __volatile("inb %w1,%0" : "=a" (data) : "d" (port));
-	return data;
-}
-
-static __inline unsigned short inw(int port)
-{
-	unsigned short data;
-	__asm __volatile("inw %w1,%0" : "=a" (data) : "d" (port));
-	return data;
-}
-
-static __inline unsigned int inl(int port)
-{
-	unsigned int data;
-	__asm __volatile("inl %w1,%0" : "=a" (data) : "d" (port));
-	return data;
-}
-
-static __inline void insl(int port, void *addr, int cnt)
-{
-	__asm __volatile("cld\n\trepne\n\tinsl"			:
-			 "=D" (addr), "=c" (cnt)		:
-			 "d" (port), "0" (addr), "1" (cnt)	:
-			 "memory", "cc");
-}
-
-static __inline void outb(int port, unsigned char data)
-{
-	__asm __volatile("outb %0,%w1" : : "a" (data), "d" (port));
-}
-
-static __inline void outw(int port, unsigned short data)
-{
-	__asm __volatile("outw %0,%w1" : : "a" (data), "d" (port));
-}
-
-/* Gate descriptors are slightly different*/
-struct Gatedesc {
-	unsigned gd_off_15_0 : 16;   // low 16 bits of offset in segment
-	unsigned gd_ss : 16;         // segment selector
-	unsigned gd_args : 5;        // # args, 0 for interrupt/trap gates
-	unsigned gd_rsv1 : 3;        // reserved(should be zero I guess)
-	unsigned gd_type :4;         // type(STS_{TG,IG32,TG32})
-	unsigned gd_s : 1;           // must be 0 (system)
-	unsigned gd_dpl : 2;         // descriptor(meaning new) privilege level
-	unsigned gd_p : 1;           // Present
-	unsigned gd_off_31_16 : 16;  // high bits of offset in segment
-};
-
-/* Pseudo-descriptors used for LGDT, LLDT and LIDT instructions*/
-struct Pseudodesc {
-	rt_uint16_t pd__garbage;         // LGDT supposed to be from address 4N+2
-	rt_uint16_t pd_lim;              // Limit
-	rt_uint32_t pd_base __attribute__ ((packed));       // Base address
-};
-
-#define SETGATE(gate, istrap, sel, off, dpl)			\
-{								\
-	(gate).gd_off_15_0 = (rt_uint32_t) (off) & 0xffff;		\
-	(gate).gd_ss = (sel);					\
-	(gate).gd_args = 0;					\
-	(gate).gd_rsv1 = 0;					\
-	(gate).gd_type = (istrap) ? STS_TG32 : STS_IG32;	\
-	(gate).gd_s = 0;					\
-	(gate).gd_dpl = dpl;					\
-	(gate).gd_p = 1;					\
-	(gate).gd_off_31_16 = (rt_uint32_t) (off) >> 16;		\
-}
-
-/* Global descriptor numbers*/
-#define		GD_KT     			0x08	// kernel text
-#define		GD_KD     			0x10	// kernel data
-#define 	GD_UT     			0x18	// user text
-#define 	GD_UD     			0x20	// user data
-
-/* Application segment type bits*/
-#define 	STA_X 				0x8		// Executable segment
-#define 	STA_E 				0x4		// Expand down(non-executable segments)
-#define 	STA_C 				0x4		// Conforming code segment(executable only)
-#define 	STA_W 				0x2		// Writeable(non-executable segments)
-#define 	STA_R 				0x2		// Readable(executable segments)
-#define 	STA_A 				0x1		// Accessed
-
-/* System segment type bits*/
-#define 	STS_T16A 			0x1		// Available 16-bit TSS
-#define 	STS_LDT 			0x2		// Local Descriptor Table
-#define 	STS_T16B 			0x3		// Busy 16-bit TSS
-#define 	STS_CG16 			0x4		// 16-bit Call Gate
-#define 	STS_TG 				0x5		// Task Gate / Coum Transmitions
-#define 	STS_IG16 			0x6		// 16-bit Interrupt Gate
-#define 	STS_TG16 			0x7		// 16-bit Trap Gate
-#define 	STS_T32A 			0x9		// Available 32-bit TSS
-#define 	STS_T32B 			0xb		// Busy 32-bit TSS
-#define 	STS_CG32 			0xc		// 32-bit Call Gate
-#define 	STS_IG32 			0xe		// 32-bit Interrupt Gate
-#define 	STS_TG32 			0xf		// 32-bit Trap Gate
-
-#endif

libcpu/ia32/start.S → libcpu/ia32/start_gcc.S

 /*
  * File      : start.S
  * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Development Team
+ * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
  *
  * The license and distribution terms for this file may be
  * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * http://www.rt-thread.org/license/LICENSE
  *
  * Change Logs:
  * Date           Author       Notes
- * 2006-09-15     QiuYi        The first version
+ * 2006-09-15     QiuYi        The first version.
+ * 2012-02-15     aozima       update.
  */
 
-#define __ASM__
-#include <grub.h>
+/* the magic number for the multiboot header.  */
+#define MULTIBOOT_HEADER_MAGIC		0x1BADB002
 
-#define CONFIG_STACKSIZE 8192
+/* the flags for the multiboot header.  */
+#define MULTIBOOT_HEADER_FLAGS		0x00000003
+
+#define CONFIG_STACKSIZE            8192
 
 /**
  * @addtogroup I386
@@ -23,16 +27,15 @@
 /*@{*/
 
 .section .init, "ax"
-.text
-	
+
 /* the system entry */
 .globl _start
 _start:
 	jmp	multiboot_entry
-	
+
 	/* Align 32 bits boundary.  */
 	.align	4
-	
+
 	/* multiboot header.  */
 multiboot_header:
 	/* magic */
@@ -41,32 +44,32 @@ multiboot_header:
 	.long	MULTIBOOT_HEADER_FLAGS
 	/* checksum */
 	.long	-(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS)
-	
+
 multiboot_entry:
 	movl	$(_end + 0x1000),%esp
-	
+
 	/* reset eflags.  */
 	pushl	$0
 	popf
-	
+
 	/*rebuild globe describe table*/
 	lgdt	mygdtdesc
-	
+
 	movl	$0x10,%eax
 	movw	%ax,%ds
 	movw	%ax,%es
 	movw	%ax,%ss
 	ljmp	$0x08, $relocated
-	
+
 relocated:
 	/* push the pointer to the multiboot information structure.  */
 	pushl	%ebx
-	
+
 	/* push the magic value.  */
 	pushl	%eax
-	
+
 	call	rtthread_startup
-	
+
 	/* never get here */
 spin:
 	hlt
@@ -88,7 +91,7 @@ mygdt:
 	.word	0x00C0
 
 mygdtdesc:
-	.word	0x17		
+	.word	0x17
 	.long	mygdt
 
 /*@}*/

libcpu/ia32/trapisr.S → libcpu/ia32/trapisr_gcc.S

 /*
- * File      : trapisr.S
+ * File      : trapisr_gcc.S
  * This file is part of RT-Thread RTOS
  * COPYRIGHT (C) 2006, RT-Thread Development Team
  *
  * The license and distribution terms for this file may be
  * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
+ * http://www.rt-thread.org/license/LICENSE
  *
  * Change Logs:
  * Date           Author       Notes
+ * 2006-09-15     QiuYi        The first version.
  */
 
 /**
@@ -22,7 +23,7 @@
 	.type proc,@function;\
 	proc:
 #define TRAPFNC(name,num)\
-	ENTRY(name)\ 			
+	ENTRY(name)\
 	pushl $(num);\
 	jmp _traps;\
 	.data;\