完整的Bell实验室的嵌入式文件系统TFS
源代码在线查看： cpuio.h
#define DEFAULT_BAUD_RATE 9600 extern unsigned char in8(unsigned int); extern void out8(unsigned int, unsigned char value); extern unsigned short in16(unsigned int); extern void out16(unsigned int, unsigned short value); extern unsigned long in32(unsigned int); extern void out32(unsigned int, unsigned long value); extern unsigned short in16r(unsigned int); extern void out16r(unsigned int, unsigned short value); extern unsigned long in32r(unsigned int); extern void out32r(unsigned int, unsigned long value); extern void dcache_flush(void *address, unsigned int count); extern void dcache_invalidate(void *address, unsigned int count); extern void ppcAbend(void); extern void ppcDcbi(void *addr); extern void ppcDcbf(void *addr); extern void ppcDcbst(void *addr); extern void ppcDcbz(void *addr); extern void ppcHalt(void); extern void ppcIcbi(void *addr); extern void ppcIsync(void); extern void ppcSync(void); extern unsigned long ppcAndMsr(unsigned long value); extern unsigned long ppcCntlzw(unsigned long value); extern unsigned long ppcMfgpr1(void); extern unsigned long ppcMfgpr2(void); extern unsigned long ppcMfmsr(void); extern unsigned long ppcMfsprg0(void); extern unsigned long ppcMfsprg1(void); extern unsigned long ppcMfsprg2(void); extern unsigned long ppcMfsprg3(void); extern unsigned long ppcMfsrr0(void); extern unsigned long ppcMfsrr1(void); extern unsigned long ppcMfpvr(void); extern unsigned long ppcMfdccr(void); extern unsigned long ppcMficcr(void); extern unsigned long ppcMfevpr(void); extern void ppcMftb(); extern void ppcMttb(); extern void ppcMtmsr(unsigned long msr_value); extern void ppcMtsprg0(unsigned long sprg_value); extern void ppcMtsprg1(unsigned long sprg_value); extern void ppcMtsprg2(unsigned long sprg_value); extern void ppcMtsprg3(unsigned long sprg_value); extern void ppcMtsrr0(unsigned long srr0_value); extern void ppcMtsrr1(unsigned long srr1_value); extern unsigned long ppcOrMsr(unsigned long value); extern void OcmDataConfig(unsigned long); extern void ledToggle(void); extern void pioset(char,int); extern void pioclr(char,int); #define GPIO0_OR 0xEF600700 /* GPIO output */ #define GPIO0_TCR 0xEF600704 /* GPIO 3-state ctrl */ #define GPIO0_ODR 0xEF600718 /* GPIO open drain */ #define GPIO0_IR 0xEF60071c /* GPIO input */ /* GPIO-specific bits in CCR0: */ #define TRE 0x08000000 #define G10E 0x04000000 #define G11E 0x02000000 #define G12E 0x01000000 #define G13E 0x00800000 #define G14E 0x00400000 #define G15E 0x00200000 #define G16E 0x00100000 #define G17E 0x00080000 #define G18E 0x00040000 #define G19E 0x00020000 #define G20E 0x00010000 #define G21E 0x00008000 #define G22E 0x00004000 #define G23E 0x00002000 /* PIO-bit positions */ #define PIO1 0x40000000 #define PIO2 0x20000000 #define PIO3 0x10000000 #define PIO4 0x08000000 #define PIO5 0x04000000 #define PIO6 0x02000000 #define PIO7 0x01000000 #define PIO8 0x00800000 #define PIO9 0x00400000 #define PIO10 0x00200000 #define PIO11 0x00100000 #define PIO12 0x00080000 #define PIO13 0x00040000 #define PIO14 0x00020000 #define PIO15 0x00010000 #define PIO16 0x00008000 #define PIO17 0x00004000 #define PIO18 0x00002000 #define PIO19 0x00001000 #define PIO20 0x00000800 #define PIO21 0x00000400 #define PIO22 0x00000200 #define PIO23 0x00000100 /* Target-specific names... */ /* Bit position: */ #define REDLED_BIT PIO9 #define ISPTDI_BIT PIO8 #define ISPTMS_BIT PIO7 #define ISPTCK_BIT PIO6 #define ISPTDO_BIT PIO5 #define WDI_BIT PIO4 #define BRDID2_BIT PIO3 #define BRDID1_BIT PIO2 #define BRDID0_BIT PIO1 /* Bit number: */ #define REDLED 9 #define ISPTDI 8 #define ISPTMS 7 #define ISPTCK 6 #define ISPTDO 5 #define WDI 4 #define BRDID2 3 #define BRDID1 2 #define BRDID0 1
