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linux-headers-6.8.0-83-generic
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io_mm.h
/* SPDX-License-Identifier: GPL-2.0 */ /* * linux/include/asm-m68k/io.h * * 4/1/00 RZ: - rewritten to avoid clashes between ISA/PCI and other * IO access * - added Q40 support * - added skeleton for GG-II and Amiga PCMCIA * 2/3/01 RZ: - moved a few more defs into raw_io.h * * inX/outX should not be used by any driver unless it does * ISA access. Other drivers should use function defined in raw_io.h * or define its own macros on top of these. * * inX(),outX() are for ISA I/O * isa_readX(),isa_writeX() are for ISA memory */ #ifndef _M68K_IO_MM_H #define _M68K_IO_MM_H #ifdef __KERNEL__ #include <linux/compiler.h> #include <asm/raw_io.h> #include <asm/virtconvert.h> #include <asm/kmap.h> #ifdef CONFIG_ATARI #define atari_readb raw_inb #define atari_writeb raw_outb #define atari_inb_p raw_inb #define atari_outb_p raw_outb #endif /* * IO/MEM definitions for various ISA bridges */ #ifdef CONFIG_Q40 #define q40_isa_io_base 0xff400000 #define q40_isa_mem_base 0xff800000 #define Q40_ISA_IO_B(ioaddr) (q40_isa_io_base+1+4*((unsigned long)(ioaddr))) #define Q40_ISA_IO_W(ioaddr) (q40_isa_io_base+ 4*((unsigned long)(ioaddr))) #define Q40_ISA_MEM_B(madr) (q40_isa_mem_base+1+4*((unsigned long)(madr))) #define Q40_ISA_MEM_W(madr) (q40_isa_mem_base+ 4*((unsigned long)(madr))) #define MULTI_ISA 0 #endif /* Q40 */ #ifdef CONFIG_AMIGA_PCMCIA #include <asm/amigayle.h> #define AG_ISA_IO_B(ioaddr) ( GAYLE_IO+(ioaddr)+(((ioaddr)&1)*GAYLE_ODD) ) #define AG_ISA_IO_W(ioaddr) ( GAYLE_IO+(ioaddr) ) #ifndef MULTI_ISA #define MULTI_ISA 0 #else #undef MULTI_ISA #define MULTI_ISA 1 #endif #endif /* AMIGA_PCMCIA */ #ifdef CONFIG_ATARI_ROM_ISA #define enec_isa_read_base 0xfffa0000 #define enec_isa_write_base 0xfffb0000 #define ENEC_ISA_IO_B(ioaddr) (enec_isa_read_base+((((unsigned long)(ioaddr))&0x7F)<<9)) #define ENEC_ISA_IO_W(ioaddr) (enec_isa_read_base+((((unsigned long)(ioaddr))&0x7F)<<9)) #define ENEC_ISA_MEM_B(madr) (enec_isa_read_base+((((unsigned long)(madr))&0x7F)<<9)) #define ENEC_ISA_MEM_W(madr) (enec_isa_read_base+((((unsigned long)(madr))&0x7F)<<9)) #ifndef MULTI_ISA #define MULTI_ISA 0 #else #undef MULTI_ISA #define MULTI_ISA 1 #endif #endif /* ATARI_ROM_ISA */ #if defined(CONFIG_ISA) || defined(CONFIG_ATARI_ROM_ISA) #if MULTI_ISA == 0 #undef MULTI_ISA #endif #define ISA_TYPE_Q40 (1) #define ISA_TYPE_AG (2) #define ISA_TYPE_ENEC (3) #if defined(CONFIG_Q40) && !defined(MULTI_ISA) #define ISA_TYPE ISA_TYPE_Q40 #define ISA_SEX 0 #endif #if defined(CONFIG_AMIGA_PCMCIA) && !defined(MULTI_ISA) #define ISA_TYPE ISA_TYPE_AG #define ISA_SEX 1 #endif #if defined(CONFIG_ATARI_ROM_ISA) && !defined(MULTI_ISA) #define ISA_TYPE ISA_TYPE_ENEC #define ISA_SEX 0 #endif #ifdef MULTI_ISA extern int isa_type; extern int isa_sex; #define ISA_TYPE isa_type #define ISA_SEX isa_sex #endif /* * define inline addr translation functions. Normally only one variant will * be compiled in so the case statement will be optimised away */ static inline u8 __iomem *isa_itb(unsigned long addr) { switch(ISA_TYPE) { #ifdef CONFIG_Q40 case ISA_TYPE_Q40: return (u8 __iomem *)Q40_ISA_IO_B(addr); #endif #ifdef CONFIG_AMIGA_PCMCIA case ISA_TYPE_AG: return (u8 __iomem *)AG_ISA_IO_B(addr); #endif #ifdef CONFIG_ATARI_ROM_ISA case ISA_TYPE_ENEC: return (u8 __iomem *)ENEC_ISA_IO_B(addr); #endif default: return NULL; /* avoid warnings, just in case */ } } static inline u16 __iomem *isa_itw(unsigned long addr) { switch(ISA_TYPE) { #ifdef CONFIG_Q40 case ISA_TYPE_Q40: return (u16 __iomem *)Q40_ISA_IO_W(addr); #endif #ifdef CONFIG_AMIGA_PCMCIA case ISA_TYPE_AG: return (u16 __iomem *)AG_ISA_IO_W(addr); #endif #ifdef CONFIG_ATARI_ROM_ISA case ISA_TYPE_ENEC: return (u16 __iomem *)ENEC_ISA_IO_W(addr); #endif default: return NULL; /* avoid warnings, just in case */ } } static inline u32 __iomem *isa_itl(unsigned long addr) { switch(ISA_TYPE) { #ifdef CONFIG_AMIGA_PCMCIA case ISA_TYPE_AG: return (u32 __iomem *)AG_ISA_IO_W(addr); #endif default: return 0; /* avoid warnings, just in case */ } } static inline u8 __iomem *isa_mtb(unsigned long addr) { switch(ISA_TYPE) { #ifdef CONFIG_Q40 case ISA_TYPE_Q40: return (u8 __iomem *)Q40_ISA_MEM_B(addr); #endif #ifdef CONFIG_AMIGA_PCMCIA case ISA_TYPE_AG: return (u8 __iomem *)addr; #endif #ifdef CONFIG_ATARI_ROM_ISA case ISA_TYPE_ENEC: return (u8 __iomem *)ENEC_ISA_MEM_B(addr); #endif default: return NULL; /* avoid warnings, just in case */ } } static inline u16 __iomem *isa_mtw(unsigned long addr) { switch(ISA_TYPE) { #ifdef CONFIG_Q40 case ISA_TYPE_Q40: return (u16 __iomem *)Q40_ISA_MEM_W(addr); #endif #ifdef CONFIG_AMIGA_PCMCIA case ISA_TYPE_AG: return (u16 __iomem *)addr; #endif #ifdef CONFIG_ATARI_ROM_ISA case ISA_TYPE_ENEC: return (u16 __iomem *)ENEC_ISA_MEM_W(addr); #endif default: return NULL; /* avoid warnings, just in case */ } } #define isa_inb(port) in_8(isa_itb(port)) #define isa_inw(port) (ISA_SEX ? in_be16(isa_itw(port)) : in_le16(isa_itw(port))) #define isa_inl(port) (ISA_SEX ? in_be32(isa_itl(port)) : in_le32(isa_itl(port))) #define isa_outb(val,port) out_8(isa_itb(port),(val)) #define isa_outw(val,port) (ISA_SEX ? out_be16(isa_itw(port),(val)) : out_le16(isa_itw(port),(val))) #define isa_outl(val,port) (ISA_SEX ? out_be32(isa_itl(port),(val)) : out_le32(isa_itl(port),(val))) #define isa_readb(p) in_8(isa_mtb((unsigned long)(p))) #define isa_readw(p) \ (ISA_SEX ? in_be16(isa_mtw((unsigned long)(p))) \ : in_le16(isa_mtw((unsigned long)(p)))) #define isa_writeb(val,p) out_8(isa_mtb((unsigned long)(p)),(val)) #define isa_writew(val,p) \ (ISA_SEX ? out_be16(isa_mtw((unsigned long)(p)),(val)) \ : out_le16(isa_mtw((unsigned long)(p)),(val))) #ifdef CONFIG_ATARI_ROM_ISA #define isa_rom_inb(port) rom_in_8(isa_itb(port)) #define isa_rom_inw(port) \ (ISA_SEX ? rom_in_be16(isa_itw(port)) \ : rom_in_le16(isa_itw(port))) #define isa_rom_outb(val, port) rom_out_8(isa_itb(port), (val)) #define isa_rom_outw(val, port) \ (ISA_SEX ? rom_out_be16(isa_itw(port), (val)) \ : rom_out_le16(isa_itw(port), (val))) #define isa_rom_readb(p) rom_in_8(isa_mtb((unsigned long)(p))) #define isa_rom_readw(p) \ (ISA_SEX ? rom_in_be16(isa_mtw((unsigned long)(p))) \ : rom_in_le16(isa_mtw((unsigned long)(p)))) #define isa_rom_readw_swap(p) \ (ISA_SEX ? rom_in_le16(isa_mtw((unsigned long)(p))) \ : rom_in_be16(isa_mtw((unsigned long)(p)))) #define isa_rom_readw_raw(p) rom_in_be16(isa_mtw((unsigned long)(p))) #define isa_rom_writeb(val, p) rom_out_8(isa_mtb((unsigned long)(p)), (val)) #define isa_rom_writew(val, p) \ (ISA_SEX ? rom_out_be16(isa_mtw((unsigned long)(p)), (val)) \ : rom_out_le16(isa_mtw((unsigned long)(p)), (val))) #define isa_rom_writew_swap(val, p) \ (ISA_SEX ? rom_out_le16(isa_mtw((unsigned long)(p)), (val)) \ : rom_out_be16(isa_mtw((unsigned long)(p)), (val))) #define isa_rom_writew_raw(val, p) rom_out_be16(isa_mtw((unsigned long)(p)), (val)) #endif /* CONFIG_ATARI_ROM_ISA */ static inline void isa_delay(void) { switch(ISA_TYPE) { #ifdef CONFIG_Q40 case ISA_TYPE_Q40: isa_outb(0,0x80); break; #endif #ifdef CONFIG_AMIGA_PCMCIA case ISA_TYPE_AG: break; #endif #ifdef CONFIG_ATARI_ROM_ISA case ISA_TYPE_ENEC: break; #endif default: break; /* avoid warnings */ } } #define isa_inb_p(p) ({u8 v=isa_inb(p);isa_delay();v;}) #define isa_outb_p(v,p) ({isa_outb((v),(p));isa_delay();}) #define isa_inw_p(p) ({u16 v=isa_inw(p);isa_delay();v;}) #define isa_outw_p(v,p) ({isa_outw((v),(p));isa_delay();}) #define isa_inl_p(p) ({u32 v=isa_inl(p);isa_delay();v;}) #define isa_outl_p(v,p) ({isa_outl((v),(p));isa_delay();}) #define isa_insb(port, buf, nr) raw_insb(isa_itb(port), (u8 *)(buf), (nr)) #define isa_outsb(port, buf, nr) raw_outsb(isa_itb(port), (u8 *)(buf), (nr)) #define isa_insw(port, buf, nr) \ (ISA_SEX ? raw_insw(isa_itw(port), (u16 *)(buf), (nr)) : \ raw_insw_swapw(isa_itw(port), (u16 *)(buf), (nr))) #define isa_outsw(port, buf, nr) \ (ISA_SEX ? raw_outsw(isa_itw(port), (u16 *)(buf), (nr)) : \ raw_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr))) #define isa_insl(port, buf, nr) \ (ISA_SEX ? raw_insl(isa_itl(port), (u32 *)(buf), (nr)) : \ raw_insw_swapw(isa_itw(port), (u16 *)(buf), (nr)<<1)) #define isa_outsl(port, buf, nr) \ (ISA_SEX ? raw_outsl(isa_itl(port), (u32 *)(buf), (nr)) : \ raw_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr)<<1)) #ifdef CONFIG_ATARI_ROM_ISA #define isa_rom_inb_p(p) ({ u8 _v = isa_rom_inb(p); isa_delay(); _v; }) #define isa_rom_inw_p(p) ({ u16 _v = isa_rom_inw(p); isa_delay(); _v; }) #define isa_rom_outb_p(v, p) ({ isa_rom_outb((v), (p)); isa_delay(); }) #define isa_rom_outw_p(v, p) ({ isa_rom_outw((v), (p)); isa_delay(); }) #define isa_rom_insb(port, buf, nr) raw_rom_insb(isa_itb(port), (u8 *)(buf), (nr)) #define isa_rom_insw(port, buf, nr) \ (ISA_SEX ? raw_rom_insw(isa_itw(port), (u16 *)(buf), (nr)) : \ raw_rom_insw_swapw(isa_itw(port), (u16 *)(buf), (nr))) #define isa_rom_outsb(port, buf, nr) raw_rom_outsb(isa_itb(port), (u8 *)(buf), (nr)) #define isa_rom_outsw(port, buf, nr) \ (ISA_SEX ? raw_rom_outsw(isa_itw(port), (u16 *)(buf), (nr)) : \ raw_rom_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr))) #endif /* CONFIG_ATARI_ROM_ISA */ #endif /* CONFIG_ISA || CONFIG_ATARI_ROM_ISA */ #if defined(CONFIG_ISA) && !defined(CONFIG_ATARI_ROM_ISA) #define inb isa_inb #define inb_p isa_inb_p #define outb isa_outb #define outb_p isa_outb_p #define inw isa_inw #define inw_p isa_inw_p #define outw isa_outw #define outw_p isa_outw_p #define inl isa_inl #define inl_p isa_inl_p #define outl isa_outl #define outl_p isa_outl_p #define insb isa_insb #define insw isa_insw #define insl isa_insl #define outsb isa_outsb #define outsw isa_outsw #define outsl isa_outsl #define readb isa_readb #define readw isa_readw #define writeb isa_writeb #define writew isa_writew #endif /* CONFIG_ISA && !CONFIG_ATARI_ROM_ISA */ #ifdef CONFIG_ATARI_ROM_ISA /* * kernel with both ROM port ISA and IDE compiled in, those have * conflicting defs for in/out. Simply consider port < 1024 * ROM port ISA and everything else regular ISA for IDE. read,write defined * below. */ #define inb(port) ((port) < 1024 ? isa_rom_inb(port) : in_8(port)) #define inb_p(port) ((port) < 1024 ? isa_rom_inb_p(port) : in_8(port)) #define inw(port) ((port) < 1024 ? isa_rom_inw(port) : in_le16(port)) #define inw_p(port) ((port) < 1024 ? isa_rom_inw_p(port) : in_le16(port)) #define inl isa_inl #define inl_p isa_inl_p #define outb(val, port) ((port) < 1024 ? isa_rom_outb((val), (port)) : out_8((port), (val))) #define outb_p(val, port) ((port) < 1024 ? isa_rom_outb_p((val), (port)) : out_8((port), (val))) #define outw(val, port) ((port) < 1024 ? isa_rom_outw((val), (port)) : out_le16((port), (val))) #define outw_p(val, port) ((port) < 1024 ? isa_rom_outw_p((val), (port)) : out_le16((port), (val))) #define outl isa_outl #define outl_p isa_outl_p #define insb(port, buf, nr) ((port) < 1024 ? isa_rom_insb((port), (buf), (nr)) : isa_insb((port), (buf), (nr))) #define insw(port, buf, nr) ((port) < 1024 ? isa_rom_insw((port), (buf), (nr)) : isa_insw((port), (buf), (nr))) #define insl isa_insl #define outsb(port, buf, nr) ((port) < 1024 ? isa_rom_outsb((port), (buf), (nr)) : isa_outsb((port), (buf), (nr))) #define outsw(port, buf, nr) ((port) < 1024 ? isa_rom_outsw((port), (buf), (nr)) : isa_outsw((port), (buf), (nr))) #define outsl isa_outsl #define readb(addr) in_8(addr) #define writeb(val, addr) out_8((addr), (val)) #define readw(addr) in_le16(addr) #define writew(val, addr) out_le16((addr), (val)) #endif /* CONFIG_ATARI_ROM_ISA */ #define readl(addr) in_le32(addr) #define writel(val,addr) out_le32((addr),(val)) #define readsb(port, buf, nr) raw_insb((port), (u8 *)(buf), (nr)) #define readsw(port, buf, nr) raw_insw((port), (u16 *)(buf), (nr)) #define readsl(port, buf, nr) raw_insl((port), (u32 *)(buf), (nr)) #define writesb(port, buf, nr) raw_outsb((port), (u8 *)(buf), (nr)) #define writesw(port, buf, nr) raw_outsw((port), (u16 *)(buf), (nr)) #define writesl(port, buf, nr) raw_outsl((port), (u32 *)(buf), (nr)) #ifndef CONFIG_SUN3 #define IO_SPACE_LIMIT 0xffff #else #define IO_SPACE_LIMIT 0x0fffffff #endif #endif /* __KERNEL__ */ #define __ARCH_HAS_NO_PAGE_ZERO_MAPPED 1 #define readb_relaxed(addr) readb(addr) #define readw_relaxed(addr) readw(addr) #define readl_relaxed(addr) readl(addr) #define writeb_relaxed(b, addr) writeb(b, addr) #define writew_relaxed(b, addr) writew(b, addr) #define writel_relaxed(b, addr) writel(b, addr) #endif /* _M68K_IO_MM_H */
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