diff options
Diffstat (limited to 'xorg-server/hw/xfree86/os-support/shared/ia64Pci.c')
| -rw-r--r-- | xorg-server/hw/xfree86/os-support/shared/ia64Pci.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/os-support/shared/ia64Pci.c b/xorg-server/hw/xfree86/os-support/shared/ia64Pci.c new file mode 100644 index 000000000..6f6924b59 --- /dev/null +++ b/xorg-server/hw/xfree86/os-support/shared/ia64Pci.c @@ -0,0 +1,188 @@ +/* + * Copyright (C) 2002-2003 The XFree86 Project, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER + * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Except as contained in this notice, the name of the XFree86 Project shall + * not be used in advertising or otherwise to promote the sale, use or other + * dealings in this Software without prior written authorization from the + * XFree86 Project. + */ + +/* + * This file contains the glue needed to support various IA-64 chipsets. + */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <fcntl.h> +#include <unistd.h> +#include <signal.h> +#include <dirent.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/ioctl.h> +#include <linux/pci.h> + +#include "compiler.h" +#include "Pci.h" + +/* + * We use special in/out routines here since Altix platforms require the + * use of the sysfs legacy_io interface. The legacy_io file maps to the I/O + * space of a given PCI domain; reads and writes are used to do port I/O. + * The file descriptor for the file is stored in the upper bits of the + * value passed in by the caller, and is created and populated by + * xf86MapLegacyIO. + * + * If the legacy_io interface doesn't exist, we fall back to the glibc in/out + * routines, which are prefixed by an underscore (e.g. _outb). + */ +static int ia64_port_to_fd(unsigned long port) +{ + return (port >> 24) & 0xffffffff; +} + +_X_EXPORT void outb(unsigned long port, unsigned char val) +{ + int fd = ia64_port_to_fd(port); + + if (!fd) { + _outb(val, port & 0xffff); + goto out; + } + if (lseek(fd, port & 0xffff, SEEK_SET) == -1) { + ErrorF("I/O lseek failed\n"); + goto out; + } + if (write(fd, &val, 1) != 1) { + ErrorF("I/O write failed\n"); + goto out; + } + out: + return; +} + +_X_EXPORT void outw(unsigned long port, unsigned short val) +{ + int fd = ia64_port_to_fd(port); + + if (!fd) { + _outw(val, port & 0xffff); + goto out; + } + if (lseek(fd, port & 0xffff, SEEK_SET) == -1) { + ErrorF("I/O lseek failed\n"); + goto out; + } + if (write(fd, &val, 2) != 2) { + ErrorF("I/O write failed\n"); + goto out; + } + out: + return; +} + +_X_EXPORT void outl(unsigned long port, unsigned int val) +{ + int fd = ia64_port_to_fd(port); + + if (!fd) { + _outl(val, port & 0xffff); + goto out; + } + if (lseek(fd, port & 0xffff, SEEK_SET) == -1) { + ErrorF("I/O lseek failed\n"); + goto out; + } + if (write(fd, &val, 4) != 4) { + ErrorF("I/O write failed\n"); + goto out; + } + out: + return; +} + +_X_EXPORT unsigned int inb(unsigned long port) +{ + int fd = ia64_port_to_fd(port); + unsigned char val; + + if (!fd) + return _inb(port & 0xffff); + + if (lseek(fd, port & 0xffff, SEEK_SET) == -1) { + ErrorF("I/O lseek failed\n"); + val = -1; + goto out; + } + if (read(fd, &val, 1) != 1) { + ErrorF("I/O read failed\n"); + val = -1; + goto out; + } + out: + return val; +} + +_X_EXPORT unsigned int inw(unsigned long port) +{ + int fd = ia64_port_to_fd(port); + unsigned short val; + + if (!fd) + return _inw(port & 0xffff); + + if (lseek(fd, port & 0xffff, SEEK_SET) == -1) { + ErrorF("I/O lseek failed\n"); + val = -1; + goto out; + } + if (read(fd, &val, 2) != 2) { + ErrorF("I/O read failed\n"); + val = -1; + goto out; + } + out: + return val; +} + +_X_EXPORT unsigned int inl(unsigned long port) +{ + int fd = ia64_port_to_fd(port); + unsigned int val; + + if (!fd) + return _inl(port & 0xffff); + + if (lseek(fd, port & 0xffff, SEEK_SET) == -1) { + ErrorF("I/O lseek failed\n"); + val = -1; + goto out; + } + if (read(fd, &val, 4) != 4) { + ErrorF("I/O read failed\n"); + val = -1; + goto out; + } + out: + return val; +} + |