Return to io.h CVS log

Up to [Qemu by Fabrice Bellard] / qemu / roms / openbios / include / arch / ppc

Annotation of qemu/roms/openbios/include/arch/ppc/io.h, revision 1.1

1.1     ! root        1: #ifndef _ASM_IO_H
        !             2: #define _ASM_IO_H
        !             3: 
        !             4: #include "asm/types.h"
        !             5: 
        !             6: #define NO_QEMU_PROTOS
        !             7: #include "arch/common/fw_cfg.h"
        !             8: 
        !             9: extern char _start, _end;
        !            10: extern unsigned long virt_offset;
        !            11: 
        !            12: #define phys_to_virt(phys) ((void *) ((unsigned long) (phys) - virt_offset))
        !            13: #define virt_to_phys(virt) ((unsigned long) (virt) + virt_offset)
        !            14: 
        !            15: #ifndef BOOTSTRAP
        !            16: 
        !            17: extern unsigned long isa_io_base;
        !            18: 
        !            19: /*
        !            20:  * 8, 16 and 32 bit, big and little endian I/O operations, with barrier.
        !            21:  */
        !            22: static inline uint8_t in_8(volatile uint8_t *addr)
        !            23: {
        !            24:        uint8_t ret;
        !            25: 
        !            26:        __asm__ __volatile__("lbz%U1%X1 %0,%1; eieio":"=r"(ret):"m"(*addr));
        !            27:        return ret;
        !            28: }
        !            29: 
        !            30: static inline void out_8(volatile uint8_t *addr, uint8_t val)
        !            31: {
        !            32:        __asm__ __volatile__("stb%U0%X0 %1,%0; eieio":"=m"(*addr):"r"(val));
        !            33: }
        !            34: 
        !            35: static inline uint16_t in_le16(volatile uint16_t *addr)
        !            36: {
        !            37:        uint16_t ret;
        !            38: 
        !            39:        __asm__ __volatile__("lhbrx %0,0,%1; eieio":"=r"(ret):
        !            40:                             "r"(addr), "m"(*addr));
        !            41:        return ret;
        !            42: }
        !            43: 
        !            44: static inline uint16_t in_be16(volatile uint16_t *addr)
        !            45: {
        !            46:        uint16_t ret;
        !            47: 
        !            48:        __asm__ __volatile__("lhz%U1%X1 %0,%1; eieio":"=r"(ret):"m"(*addr));
        !            49:        return ret;
        !            50: }
        !            51: 
        !            52: static inline void out_le16(volatile uint16_t *addr, uint16_t val)
        !            53: {
        !            54:        __asm__ __volatile__("sthbrx %1,0,%2; eieio":"=m"(*addr):"r"(val),
        !            55:                             "r"(addr));
        !            56: }
        !            57: 
        !            58: static inline void out_be16(volatile uint16_t *addr, uint16_t val)
        !            59: {
        !            60:        __asm__ __volatile__("sth%U0%X0 %1,%0; eieio":"=m"(*addr):"r"(val));
        !            61: }
        !            62: 
        !            63: static inline uint32_t in_le32(volatile uint32_t *addr)
        !            64: {
        !            65:        uint32_t ret;
        !            66: 
        !            67:        __asm__ __volatile__("lwbrx %0,0,%1; eieio":"=r"(ret):
        !            68:                             "r"(addr), "m"(*addr));
        !            69:        return ret;
        !            70: }
        !            71: 
        !            72: static inline uint32_t in_be32(volatile uint32_t *addr)
        !            73: {
        !            74:        uint32_t ret;
        !            75: 
        !            76:        __asm__ __volatile__("lwz%U1%X1 %0,%1; eieio":"=r"(ret):"m"(*addr));
        !            77:        return ret;
        !            78: }
        !            79: 
        !            80: static inline void out_le32(volatile uint32_t *addr, uint32_t val)
        !            81: {
        !            82:        __asm__ __volatile__("stwbrx %1,0,%2; eieio":"=m"(*addr):"r"(val),
        !            83:                             "r"(addr));
        !            84: }
        !            85: 
        !            86: static inline void out_be32(volatile unsigned *addr, uint32_t val)
        !            87: {
        !            88:        __asm__ __volatile__("stw%U0%X0 %1,%0; eieio":"=m"(*addr):"r"(val));
        !            89: }
        !            90: 
        !            91: static inline void _insw_ns(volatile uint16_t * port, void *buf, int ns)
        !            92: {
        !            93:        uint16_t *b = (uint16_t *) buf;
        !            94: 
        !            95:        while (ns > 0) {
        !            96:                *b++ = in_le16(port);
        !            97:                ns--;
        !            98:        }
        !            99: }
        !           100: 
        !           101: static inline void _outsw_ns(volatile uint16_t * port, const void *buf,
        !           102:                             int ns)
        !           103: {
        !           104:        uint16_t *b = (uint16_t *) buf;
        !           105: 
        !           106:        while (ns > 0) {
        !           107:                out_le16(port, *b++);
        !           108:                ns--;
        !           109:        }
        !           110: }
        !           111: 
        !           112: static inline void _insw(volatile uint16_t * port, void *buf, int ns)
        !           113: {
        !           114:        uint16_t *b = (uint16_t *) buf;
        !           115: 
        !           116:        while (ns > 0) {
        !           117:                *b++ = in_be16(port);
        !           118:                ns--;
        !           119:        }
        !           120: }
        !           121: 
        !           122: static inline void _outsw(volatile uint16_t * port, const void *buf,
        !           123:                          int ns)
        !           124: {
        !           125:        uint16_t *b = (uint16_t *) buf;
        !           126: 
        !           127:        while (ns > 0) {
        !           128:                out_be16(port, *b++);
        !           129:                ns--;
        !           130:        }
        !           131: }
        !           132: 
        !           133: 
        !           134: /*
        !           135:  * The insw/outsw/insl/outsl functions don't do byte-swapping.
        !           136:  * They are only used in practice for transferring buffers which
        !           137:  * are arrays of bytes, and byte-swapping is not appropriate in
        !           138:  * that case.  - paulus
        !           139:  */
        !           140: 
        !           141: static inline void insw(uint16_t port, void *buf, int ns)
        !           142: {
        !           143:        _insw((uint16_t *)(port + isa_io_base), buf, ns);
        !           144: }
        !           145: 
        !           146: static inline void outsw(uint16_t port, void *buf, int ns)
        !           147: {
        !           148:        _outsw((uint16_t *)(port + isa_io_base), buf, ns);
        !           149: }
        !           150: 
        !           151: 
        !           152: static inline uint8_t inb(uint16_t port)
        !           153: {
        !           154:        return in_8((uint8_t *)(port + isa_io_base));
        !           155: }
        !           156: 
        !           157: static inline void outb(uint8_t val, uint16_t port)
        !           158: {
        !           159:        out_8((uint8_t *)(port + isa_io_base), val);
        !           160: }
        !           161: 
        !           162: static inline uint16_t inw(uint16_t port)
        !           163: {
        !           164:        return in_le16((uint16_t *)(port + isa_io_base));
        !           165: }
        !           166: 
        !           167: static inline void outw(uint16_t val, uint16_t port)
        !           168: {
        !           169:        out_le16((uint16_t *)(port + isa_io_base), val);
        !           170: }
        !           171: 
        !           172: static inline uint32_t inl(uint16_t port)
        !           173: {
        !           174:        return in_le32((uint32_t *)(port + isa_io_base));
        !           175: }
        !           176: 
        !           177: static inline void outl(uint32_t val, uint16_t port)
        !           178: {
        !           179:        out_le32((uint32_t *)(port + isa_io_base), val);
        !           180: }
        !           181: 
        !           182: #else /* BOOTSTRAP */
        !           183: #ifdef FCOMPILER
        !           184: #define inb(reg) ((u8)0xff)
        !           185: #define inw(reg) ((u16)0xffff)
        !           186: #define inl(reg) ((u32)0xffffffff)
        !           187: #define outb(reg, val) do{} while(0)
        !           188: #define outw(reg, val) do{} while(0)
        !           189: #define outl(reg, val) do{} while(0)
        !           190: #else
        !           191: extern u8 inb(u32 reg);
        !           192: extern u16 inw(u32 reg);
        !           193: extern u32 inl(u32 reg);
        !           194: extern void insw(u32 reg, void *addr, unsigned long count);
        !           195: extern void outb(u32 reg, u8 val);
        !           196: extern void outw(u32 reg, u16 val);
        !           197: extern void outl(u32 reg, u32 val);
        !           198: extern void outsw(u32 reg, const void *addr, unsigned long count);
        !           199: #endif
        !           200: #endif
        !           201: 
        !           202: #if defined(CONFIG_QEMU)
        !           203: #define FW_CFG_ARCH_WIDTH        (FW_CFG_ARCH_LOCAL + 0x00)
        !           204: #define FW_CFG_ARCH_HEIGHT       (FW_CFG_ARCH_LOCAL + 0x01)
        !           205: #define FW_CFG_ARCH_DEPTH        (FW_CFG_ARCH_LOCAL + 0x02)
        !           206: #endif
        !           207: 
        !           208: #endif /* _ASM_IO_H */

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.