1/* 2 * I/O routines for Titan 3 */ 4#include <linux/pci.h> 5#include <asm/machvec.h> 6#include <asm/addrspace.h> 7#include <asm/titan.h> 8#include <asm/io.h> 9 10static inline unsigned int port2adr(unsigned int port) 11{ 12 maybebadio((unsigned long)port); 13 return port; 14} 15 16u8 titan_inb(unsigned long port) 17{ 18 if (PXSEG(port)) 19 return ctrl_inb(port); 20 else if (is_pci_ioaddr(port)) 21 return ctrl_inb(pci_ioaddr(port)); 22 return ctrl_inw(port2adr(port)) & 0xff; 23} 24 25u8 titan_inb_p(unsigned long port) 26{ 27 u8 v; 28 29 if (PXSEG(port)) 30 v = ctrl_inb(port); 31 else if (is_pci_ioaddr(port)) 32 v = ctrl_inb(pci_ioaddr(port)); 33 else 34 v = ctrl_inw(port2adr(port)) & 0xff; 35 ctrl_delay(); 36 return v; 37} 38 39u16 titan_inw(unsigned long port) 40{ 41 if (PXSEG(port)) 42 return ctrl_inw(port); 43 else if (is_pci_ioaddr(port)) 44 return ctrl_inw(pci_ioaddr(port)); 45 else if (port >= 0x2000) 46 return ctrl_inw(port2adr(port)); 47 else 48 maybebadio(port); 49 return 0; 50} 51 52u32 titan_inl(unsigned long port) 53{ 54 if (PXSEG(port)) 55 return ctrl_inl(port); 56 else if (is_pci_ioaddr(port)) 57 return ctrl_inl(pci_ioaddr(port)); 58 else if (port >= 0x2000) 59 return ctrl_inw(port2adr(port)); 60 else 61 maybebadio(port); 62 return 0; 63} 64 65void titan_outb(u8 value, unsigned long port) 66{ 67 if (PXSEG(port)) 68 ctrl_outb(value, port); 69 else if (is_pci_ioaddr(port)) 70 ctrl_outb(value, pci_ioaddr(port)); 71 else 72 ctrl_outw(value, port2adr(port)); 73} 74 75void titan_outb_p(u8 value, unsigned long port) 76{ 77 if (PXSEG(port)) 78 ctrl_outb(value, port); 79 else if (is_pci_ioaddr(port)) 80 ctrl_outb(value, pci_ioaddr(port)); 81 else 82 ctrl_outw(value, port2adr(port)); 83 ctrl_delay(); 84} 85 86void titan_outw(u16 value, unsigned long port) 87{ 88 if (PXSEG(port)) 89 ctrl_outw(value, port); 90 else if (is_pci_ioaddr(port)) 91 ctrl_outw(value, pci_ioaddr(port)); 92 else if (port >= 0x2000) 93 ctrl_outw(value, port2adr(port)); 94 else 95 maybebadio(port); 96} 97 98void titan_outl(u32 value, unsigned long port) 99{ 100 if (PXSEG(port)) 101 ctrl_outl(value, port); 102 else if (is_pci_ioaddr(port)) 103 ctrl_outl(value, pci_ioaddr(port)); 104 else 105 maybebadio(port); 106} 107 108void titan_insl(unsigned long port, void *dst, unsigned long count) 109{ 110 maybebadio(port); 111} 112 113void titan_outsl(unsigned long port, const void *src, unsigned long count) 114{ 115 maybebadio(port); 116} 117 118void __iomem *titan_ioport_map(unsigned long port, unsigned int size) 119{ 120 if (PXSEG(port) || is_pci_memaddr(port)) 121 return (void __iomem *)port; 122 else if (is_pci_ioaddr(port)) 123 return (void __iomem *)pci_ioaddr(port); 124 125 return (void __iomem *)port2adr(port); 126} 127