| /* |
| * Copyright (C) 2001 Ian da Silva, Jeremy Siegel |
| * Based largely on io_se.c. |
| * |
| * I/O routine for Renesas Solutions Highlander R7780RP-1 |
| * |
| * Initial version only to support LAN access; some |
| * placeholder code from io_r7780rp.c left in with the |
| * expectation of later SuperIO and PCMCIA access. |
| */ |
| #include <linux/pci.h> |
| #include <linux/kernel.h> |
| #include <linux/types.h> |
| #include <asm/r7780rp.h> |
| #include <asm/addrspace.h> |
| #include <asm/io.h> |
| |
| static inline unsigned long port2adr(unsigned int port) |
| { |
| if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) |
| if (port == 0x3f6) |
| return (PA_AREA5_IO + 0x80c); |
| else |
| return (PA_AREA5_IO + 0x1000 + ((port-0x1f0) << 1)); |
| else |
| maybebadio((unsigned long)port); |
| |
| return port; |
| } |
| |
| static inline unsigned long port88796l(unsigned int port, int flag) |
| { |
| unsigned long addr; |
| |
| if (flag) |
| addr = PA_AX88796L + ((port - AX88796L_IO_BASE) << 1); |
| else |
| addr = PA_AX88796L + ((port - AX88796L_IO_BASE) << 1) + 0x1000; |
| |
| return addr; |
| } |
| |
| /* The 7780 R7780RP-1 seems to have everything hooked */ |
| /* up pretty normally (nothing on high-bytes only...) so this */ |
| /* shouldn't be needed */ |
| static inline int shifted_port(unsigned long port) |
| { |
| /* For IDE registers, value is not shifted */ |
| if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) |
| return 0; |
| else |
| return 1; |
| } |
| |
| #if defined(CONFIG_NE2000) || defined(CONFIG_NE2000_MODULE) |
| #define CHECK_AX88796L_PORT(port) \ |
| ((port >= AX88796L_IO_BASE) && (port < (AX88796L_IO_BASE+0x20))) |
| #else |
| #define CHECK_AX88796L_PORT(port) (0) |
| #endif |
| |
| /* |
| * General outline: remap really low stuff [eventually] to SuperIO, |
| * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) |
| * is mapped through the PCI IO window. Stuff with high bits (PXSEG) |
| * should be way beyond the window, and is used w/o translation for |
| * compatibility. |
| */ |
| u8 r7780rp_inb(unsigned long port) |
| { |
| if (CHECK_AX88796L_PORT(port)) |
| return ctrl_inw(port88796l(port, 0)) & 0xff; |
| else if (PXSEG(port)) |
| return ctrl_inb(port); |
| else if (is_pci_ioaddr(port) || shifted_port(port)) |
| return ctrl_inb(pci_ioaddr(port)); |
| |
| return ctrl_inw(port2adr(port)) & 0xff; |
| } |
| |
| u8 r7780rp_inb_p(unsigned long port) |
| { |
| u8 v; |
| |
| if (CHECK_AX88796L_PORT(port)) |
| v = ctrl_inw(port88796l(port, 0)) & 0xff; |
| else if (PXSEG(port)) |
| v = ctrl_inb(port); |
| else if (is_pci_ioaddr(port) || shifted_port(port)) |
| v = ctrl_inb(pci_ioaddr(port)); |
| else |
| v = ctrl_inw(port2adr(port)) & 0xff; |
| |
| ctrl_delay(); |
| |
| return v; |
| } |
| |
| u16 r7780rp_inw(unsigned long port) |
| { |
| if (CHECK_AX88796L_PORT(port)) |
| maybebadio(port); |
| else if (PXSEG(port)) |
| return ctrl_inw(port); |
| else if (is_pci_ioaddr(port) || shifted_port(port)) |
| return ctrl_inw(pci_ioaddr(port)); |
| else |
| maybebadio(port); |
| |
| return 0; |
| } |
| |
| u32 r7780rp_inl(unsigned long port) |
| { |
| if (CHECK_AX88796L_PORT(port)) |
| maybebadio(port); |
| else if (PXSEG(port)) |
| return ctrl_inl(port); |
| else if (is_pci_ioaddr(port) || shifted_port(port)) |
| return ctrl_inl(pci_ioaddr(port)); |
| else |
| maybebadio(port); |
| |
| return 0; |
| } |
| |
| void r7780rp_outb(u8 value, unsigned long port) |
| { |
| if (CHECK_AX88796L_PORT(port)) |
| ctrl_outw(value, port88796l(port, 0)); |
| else if (PXSEG(port)) |
| ctrl_outb(value, port); |
| else if (is_pci_ioaddr(port) || shifted_port(port)) |
| ctrl_outb(value, pci_ioaddr(port)); |
| else |
| ctrl_outw(value, port2adr(port)); |
| } |
| |
| void r7780rp_outb_p(u8 value, unsigned long port) |
| { |
| if (CHECK_AX88796L_PORT(port)) |
| ctrl_outw(value, port88796l(port, 0)); |
| else if (PXSEG(port)) |
| ctrl_outb(value, port); |
| else if (is_pci_ioaddr(port) || shifted_port(port)) |
| ctrl_outb(value, pci_ioaddr(port)); |
| else |
| ctrl_outw(value, port2adr(port)); |
| |
| ctrl_delay(); |
| } |
| |
| void r7780rp_outw(u16 value, unsigned long port) |
| { |
| if (CHECK_AX88796L_PORT(port)) |
| maybebadio(port); |
| else if (PXSEG(port)) |
| ctrl_outw(value, port); |
| else if (is_pci_ioaddr(port) || shifted_port(port)) |
| ctrl_outw(value, pci_ioaddr(port)); |
| else |
| maybebadio(port); |
| } |
| |
| void r7780rp_outl(u32 value, unsigned long port) |
| { |
| if (CHECK_AX88796L_PORT(port)) |
| maybebadio(port); |
| else if (PXSEG(port)) |
| ctrl_outl(value, port); |
| else if (is_pci_ioaddr(port) || shifted_port(port)) |
| ctrl_outl(value, pci_ioaddr(port)); |
| else |
| maybebadio(port); |
| } |
| |
| void r7780rp_insb(unsigned long port, void *dst, unsigned long count) |
| { |
| volatile u16 *p; |
| u8 *buf = dst; |
| |
| if (CHECK_AX88796L_PORT(port)) { |
| p = (volatile u16 *)port88796l(port, 0); |
| while (count--) |
| *buf++ = *p & 0xff; |
| } else if (PXSEG(port)) { |
| while (count--) |
| *buf++ = *(volatile u8 *)port; |
| } else if (is_pci_ioaddr(port) || shifted_port(port)) { |
| volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); |
| |
| while (count--) |
| *buf++ = *bp; |
| } else { |
| p = (volatile u16 *)port2adr(port); |
| while (count--) |
| *buf++ = *p & 0xff; |
| } |
| } |
| |
| void r7780rp_insw(unsigned long port, void *dst, unsigned long count) |
| { |
| volatile u16 *p; |
| u16 *buf = dst; |
| |
| if (CHECK_AX88796L_PORT(port)) |
| p = (volatile u16 *)port88796l(port, 1); |
| else if (PXSEG(port)) |
| p = (volatile u16 *)port; |
| else if (is_pci_ioaddr(port) || shifted_port(port)) |
| p = (volatile u16 *)pci_ioaddr(port); |
| else |
| p = (volatile u16 *)port2adr(port); |
| |
| while (count--) |
| *buf++ = *p; |
| } |
| |
| void r7780rp_insl(unsigned long port, void *dst, unsigned long count) |
| { |
| u32 *buf = dst; |
| |
| if (CHECK_AX88796L_PORT(port)) |
| maybebadio(port); |
| else if (is_pci_ioaddr(port) || shifted_port(port)) { |
| volatile u32 *p = (volatile u32 *)pci_ioaddr(port); |
| |
| while (count--) |
| *buf++ = *p; |
| } else |
| maybebadio(port); |
| } |
| |
| void r7780rp_outsb(unsigned long port, const void *src, unsigned long count) |
| { |
| volatile u16 *p; |
| const u8 *buf = src; |
| |
| if (CHECK_AX88796L_PORT(port)) { |
| p = (volatile u16 *)port88796l(port, 0); |
| while (count--) |
| *p = *buf++; |
| } else if (PXSEG(port)) |
| while (count--) |
| ctrl_outb(*buf++, port); |
| else if (is_pci_ioaddr(port) || shifted_port(port)) { |
| volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); |
| |
| while (count--) |
| *bp = *buf++; |
| } else { |
| p = (volatile u16 *)port2adr(port); |
| while (count--) |
| *p = *buf++; |
| } |
| } |
| |
| void r7780rp_outsw(unsigned long port, const void *src, unsigned long count) |
| { |
| volatile u16 *p; |
| const u16 *buf = src; |
| |
| if (CHECK_AX88796L_PORT(port)) |
| p = (volatile u16 *)port88796l(port, 1); |
| else if (PXSEG(port)) |
| p = (volatile u16 *)port; |
| else if (is_pci_ioaddr(port) || shifted_port(port)) |
| p = (volatile u16 *)pci_ioaddr(port); |
| else |
| p = (volatile u16 *)port2adr(port); |
| |
| while (count--) |
| *p = *buf++; |
| } |
| |
| void r7780rp_outsl(unsigned long port, const void *src, unsigned long count) |
| { |
| const u32 *buf = src; |
| |
| if (CHECK_AX88796L_PORT(port)) |
| maybebadio(port); |
| else if (is_pci_ioaddr(port) || shifted_port(port)) { |
| volatile u32 *p = (volatile u32 *)pci_ioaddr(port); |
| |
| while (count--) |
| *p = *buf++; |
| } else |
| maybebadio(port); |
| } |
| |
| void __iomem *r7780rp_ioport_map(unsigned long port, unsigned int size) |
| { |
| if (CHECK_AX88796L_PORT(port)) |
| return (void __iomem *)port88796l(port, size > 1); |
| else if (PXSEG(port)) |
| return (void __iomem *)port; |
| else if (is_pci_ioaddr(port) || shifted_port(port)) |
| return (void __iomem *)pci_ioaddr(port); |
| |
| return (void __iomem *)port2adr(port); |
| } |