/* * I/O routines for Titan */ #include #include #include #include #include #include "../../drivers/pci/pci-sh7751.h" #define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) #define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) #define PCI_IO_AREA SH7751_PCI_IO_BASE #define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE #define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) #if defined(CONFIG_PCI) #define CHECK_SH7751_PCIIO(port) \ ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) #define CHECK_SH7751_PCIMEMIO(port) \ ((port >= PCIBIOS_MIN_MEM) && (port < (PCIBIOS_MIN_MEM + SH7751_PCI_MEM_SIZE))) #else #define CHECK_SH7751_PCIIO(port) (0) #endif static inline void delay(void) { ctrl_inw(0xa0000000); } static inline volatile u16 *port2adr(unsigned int port) { maybebadio((unsigned long)port); return (volatile u16*)port; } u8 titan_inb(unsigned long port) { if (PXSEG(port)) return ctrl_inb(port); else if (CHECK_SH7751_PCIIO(port)) return ctrl_inb(PCI_IOMAP(port)); return ctrl_inw(port2adr(port)) & 0xff; } u8 titan_inb_p(unsigned long port) { u8 v; if (PXSEG(port)) v = ctrl_inb(port); else if (CHECK_SH7751_PCIIO(port)) v = ctrl_inb(PCI_IOMAP(port)); else v = ctrl_inw(port2adr(port)) & 0xff; delay(); return v; } u16 titan_inw(unsigned long port) { if (PXSEG(port)) return ctrl_inw(port); else if (CHECK_SH7751_PCIIO(port)) return ctrl_inw(PCI_IOMAP(port)); else if (port >= 0x2000) return ctrl_inw(port2adr(port)); else maybebadio(port); return 0; } u32 titan_inl(unsigned long port) { if (PXSEG(port)) return ctrl_inl(port); else if (CHECK_SH7751_PCIIO(port)) return ctrl_inl(PCI_IOMAP(port)); else if (port >= 0x2000) return ctrl_inw(port2adr(port)); else maybebadio(port); return 0; } void titan_outb(u8 value, unsigned long port) { if (PXSEG(port)) ctrl_outb(value, port); else if (CHECK_SH7751_PCIIO(port)) ctrl_outb(value, PCI_IOMAP(port)); else ctrl_outw(value, port2adr(port)); } void titan_outb_p(u8 value, unsigned long port) { if (PXSEG(port)) ctrl_outb(value, port); else if (CHECK_SH7751_PCIIO(port)) ctrl_outb(value, PCI_IOMAP(port)); else ctrl_outw(value, port2adr(port)); delay(); } void titan_outw(u16 value, unsigned long port) { if (PXSEG(port)) ctrl_outw(value, port); else if (CHECK_SH7751_PCIIO(port)) ctrl_outw(value, PCI_IOMAP(port)); else if (port >= 0x2000) ctrl_outw(value, port2adr(port)); else maybebadio(port); } void titan_outl(u32 value, unsigned long port) { if (PXSEG(port)) ctrl_outl(value, port); else if (CHECK_SH7751_PCIIO(port)) ctrl_outl(value, PCI_IOMAP(port)); else maybebadio(port); } void titan_insl(unsigned long port, void *dst, unsigned long count) { maybebadio(port); } void titan_outsl(unsigned long port, const void *src, unsigned long count) { maybebadio(port); } void *titan_ioremap(unsigned long offset, unsigned long size) { if (CHECK_SH7751_PCIIO(offset) || CHECK_SH7751_PCIMEMIO(offset)) return (void *)offset; } void __iomem *titan_ioport_map(unsigned long port, unsigned int size) { if (PXSEG(port)) return (void __iomem *)port; else if (CHECK_SH7751_PCIIO(port)) return (void __iomem *)PCI_IOMAP(port); return (void __iomem *)port2adr(port); } EXPORT_SYMBOL(titan_ioremap);