#include?“regs.h“
#include?“common.h“

struct{
	unsigned?int?src_addr;
	unsigned?int?dst_addr;
	unsigned?int?next_dma;
	unsigned?int?control0;
	unsigned?int?control1;
}next_work;

int?sound_index?=?0;

void?delay（int?n）;

void?ac97_init（void）
{
	sound_index?=?0x1f;

	GPDCON?=?0x44444;

	AC_GLBCTRL?|=?1;
	delay（1）;
	AC_GLBCTRL?&=?~1;

	AC_GLBCTRL?|=?1?<	delay（1）;
	AC_GLBCTRL?&=?~（1?<
	AC_GLBCTRL?|=?1?<	delay（1）;
	AC_GLBCTRL?|=?1?<
	AC_CODEC_CMD?|=?1?<	delay（10）;
	if（（AC_GLBSTAT?&?0x7）?==?0x3）{
		//uprintf（“AC97?init?OK!\n“）;
	}else{
		uprintf（“The?error?status?is?%d\n“?（AC_GLBSTAT?&?0x7））;
	}
}

void?write_wm9714（unsigned?int?reg?unsigned?int?val）
{
	AC_CODEC_CMD?=?（reg?<	delay（1）;
}

void?wm9714_init（void）
{
	write_wm9714（0x0c?（0x1f?<	write_wm9714（0x5c?（1?<	write_wm9714（0x2a?1）;
	write_wm9714（0x2c?0xac44）;
	write_wm9714（0x1c?（2?<	write_wm9714（0x04?0）;
	write_wm9714（0x02?0）;
	write_wm9714（0x24?（1?<	write_wm9714（0x5a?（0?<	write_wm9714（0x26?0）;
	write_wm9714（0x3c?0）;
	write_wm9714（0x3e?0）;
}

void?ac97_dma_init（unsigned?int?addr?unsigned?int?len）
{
	next_work.src_addr?=?addr;
	next_work.dst_addr?=?（unsigned?int）（&AC_PCMDATA）;
	next_work.next_dma?=?（unsigned?int）（&next_work）;
	next_work.control0?=?（1?<	next_work.control1?=?（len?+?3）?>>?2;

	DMACC0LLI?=?（unsigned?int）（&next_work）;

	SDMA_SEL?|=?1?<
	DMACC0SrcAddr?=?addr;
	DMACC0DestAddr?=?（unsigned?int）（&AC_PCMDATA）;
	DMACC0Control0?=?（1?<	DMACC0Control1?=?（len?+?3）?>>?2;
	DMACC0Configuration?=?（1?<}

void?play_music（unsigned?int?addr?unsigned?int?len）
{
	ac97_dma_init（addr?len）;
	AC_GLBCTRL?|=?（2?<	DMACConfiguration?|=?1;
}

void?delay（int?n）
{
	int?i?j;

	for（i?=?0;?i?		for（j?=?0;?j?			;
		}
	}
}

void?sound_updown（int?n）
{
	if（n?==?0）{
		sound_index++;
		if（sound_index?>?0x1f）{
			sound_index?=?0x1f;
		}
	}else{
		sound_index--;
		if（sound_index?			sound_index?=?0;	
		}
	}
	write_wm9714（0x0c?（sound_index?<}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????2206??2014-04-24?20:36??數(shù)碼相框\ac97.c

?????文件????????286??2014-04-24?20:36??數(shù)碼相框\boot.c

?????文件????????286??2014-04-24?20:36??數(shù)碼相框\clock.c

?????文件????????237??2014-04-24?20:36??數(shù)碼相框\common.h

?????文件???????1079??2014-04-24?20:36??數(shù)碼相框\ddr.c

?????文件???????1623??2014-04-24?20:36??數(shù)碼相框\irq.c

?????文件????????775??2014-04-24?20:36??數(shù)碼相框\key.c

?????文件???????4068??2014-04-24?20:36??數(shù)碼相框\lcd.c

?????文件????????123??2014-04-24?20:36??數(shù)碼相框\ld.lds

?????文件????????211??2014-04-24?20:36??數(shù)碼相框\led.c

?????文件????????849??2014-04-24?20:36??數(shù)碼相框\main.c

?????文件????????655??2014-04-24?20:36??數(shù)碼相框\Makefile

?????文件?????522240??2014-04-24?20:36??數(shù)碼相框\mkimage\3

?????文件???????1497??2014-04-24?20:36??數(shù)碼相框\mkimage\bmp.c

?????文件?????522240??2014-04-24?20:36??數(shù)碼相框\mkimage\end

?????文件????????871??2014-04-24?20:36??數(shù)碼相框\mkimage\fb.h

?????文件???????2480??2014-04-24?20:36??數(shù)碼相框\mkimage\jpeg.c

?????文件???????2548??2014-04-24?20:36??數(shù)碼相框\mkimage\main.c

?????文件????????269??2014-04-24?20:36??數(shù)碼相框\mkimage\Makefile

?????文件??????31191??2014-04-24?20:36??數(shù)碼相框\mkimage\mkimage

?????文件???????2238??2014-04-24?20:36??數(shù)碼相框\mkimage\mkimage.c

?????文件??????68241??2014-04-24?20:36??數(shù)碼相框\mkimage\mm\09.jpg

?????文件?????209269??2014-04-24?20:36??數(shù)碼相框\mkimage\mm\1.jpg

?????文件?????483078??2014-04-24?20:36??數(shù)碼相框\mkimage\mm\10.jpg

?????文件??????56982??2014-04-24?20:36??數(shù)碼相框\mkimage\mm\11.jpg

?????文件?????119532??2014-04-24?20:36??數(shù)碼相框\mkimage\mm\12.jpg

?????文件?????736826??2014-04-24?20:36??數(shù)碼相框\mkimage\mm\13.jpg

?????文件?????571957??2014-04-24?20:36??數(shù)碼相框\mkimage\mm\14.jpg

?????文件?????157510??2014-04-24?20:36??數(shù)碼相框\mkimage\mm\15.jpg

?????文件?????570498??2014-04-24?20:36??數(shù)碼相框\mkimage\mm\16.jpg

............此處省略26個(gè)文件信息