diff options
Diffstat (limited to 'util/dell-flash-unlock/accessors.c')
| -rw-r--r-- | util/dell-flash-unlock/accessors.c | 72 |
1 files changed, 66 insertions, 6 deletions
diff --git a/util/dell-flash-unlock/accessors.c b/util/dell-flash-unlock/accessors.c index 6fca2817..0a5df760 100644 --- a/util/dell-flash-unlock/accessors.c +++ b/util/dell-flash-unlock/accessors.c @@ -5,9 +5,12 @@ #include <sys/io.h> #endif -#if defined(__OpenBSD__) -#include <machine/sysarch.h> +#if defined(__OpenBSD__) || defined(__NetBSD__) #include <sys/types.h> +#include <machine/sysarch.h> +#endif /* __OpenBSD__ || __NetBSD__ */ + +#if defined(__OpenBSD__) #if defined(__amd64__) #include <amd64/pio.h> #elif defined(__i386__) @@ -15,6 +18,13 @@ #endif /* __i386__ */ #endif /* __OpenBSD__ */ +#if defined(__FreeBSD__) +#include <fcntl.h> +#include <sys/types.h> +#include <machine/cpufunc.h> +#include <unistd.h> +#endif /* __FreeBSD__ */ + #include <errno.h> #include "accessors.h" @@ -39,9 +49,12 @@ sys_outb(unsigned int port, uint8_t data) #if defined(__linux__) outb(data, port); #endif - #if defined(__OpenBSD__) + #if defined(__OpenBSD__) || defined(__FreeBSD__) outb(port, data); #endif + #if defined(__NetBSD__) + __asm__ volatile ("outb %b0, %w1" : : "a"(data), "d"(port)); + #endif } void @@ -50,26 +63,42 @@ sys_outl(unsigned int port, uint32_t data) #if defined(__linux__) outl(data, port); #endif - #if defined(__OpenBSD__) + #if defined(__OpenBSD__) || defined(__FreeBSD__) outl(port, data); #endif + #if defined(__NetBSD__) + __asm__ volatile ("outl %0, %w1" : : "a"(data), "d"(port)); + #endif } uint8_t sys_inb(unsigned int port) { - #if defined(__linux__) || defined (__OpenBSD__) + #if defined(__linux__) || defined (__OpenBSD__) \ + || defined(__FreeBSD__) return inb(port); #endif + + #if defined(__NetBSD__) + uint8_t retval; + __asm__ volatile ("inb %w1, %b0" : "=a" (retval) : "d" (port)); + return retval; + #endif return 0; } uint32_t sys_inl(unsigned int port) { - #if defined(__linux__) || defined (__OpenBSD__) + #if defined(__linux__) || defined (__OpenBSD__) \ + || defined(__FreeBSD__) return inl(port); #endif + #if defined(__NetBSD__) + int retval; + __asm__ volatile ("inl %w1, %0" : "=a" (retval) : "d" (port)); + return retval; + #endif return 0; } @@ -86,6 +115,37 @@ sys_iopl(int level) return amd64_iopl(level); #endif /* __amd64__ */ #endif /* __OpenBSD__ */ + +#if defined(__NetBSD__) +#if defined(__i386__) + return i386_iopl(level); +#elif defined(__amd64__) + return x86_64_iopl(level); +#endif /* __amd64__ */ +#endif /* __NetBSD__ */ + +#if defined(__FreeBSD__) + /* Refer to io(4) manual page. This assumes the legacy behavior + * where opening /dev/io raises the IOPL of the process */ + static int io_fd = -1; + + /* Requesting privileged access */ + if (level > 0) { + if (io_fd == -1) { + io_fd = open("/dev/io", O_RDONLY); + return (io_fd == -1) ? -1 : 0; + } + /* Lowering access to lowest level */ + } else if (level == 0 && io_fd != -1) { + if (close(io_fd) == -1) { + return -1; + } else { + io_fd = -1; + } + } + return 0; +#endif /* __FreeBSD__ */ + errno = ENOSYS; return -1; } |