diff options
Diffstat (limited to 'edd/edd.c')
| -rw-r--r-- | edd/edd.c | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/edd/edd.c b/edd/edd.c deleted file mode 100644 index fbad48723..000000000 --- a/edd/edd.c +++ /dev/null @@ -1,223 +0,0 @@ -/* - * edd.c - real mode bios library for discovering EDD capabilities of - * BIOS drives - * - * Matt Wilson <msw@redhat.com> - * - * Copyright 2000 Red Hat, Inc. - * - * This software may be freely redistributed under the terms of the GNU - * library public license. - * - * You should have received a copy of the GNU Library Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#include <sys/io.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "lrmi.h" -#include "edd.h" - -static int edd_lrmi_initialized = 0; - -static int -edd_lrmi_init (void) { - if (edd_lrmi_initialized) - return EDD_SUCCESS; - - if (iopl(3)) { - fprintf (stderr, "ERROR: failed to set iopl permissions\n"); - return EDD_ERROR; - } - - if (ioperm(0, 0x400, 1)) { - fprintf (stderr, "ERROR: failed to set ioperm permissions\n"); - return EDD_ERROR; - } - - /* Initialize LRMI. */ - if(LRMI_init() == 1) { - edd_lrmi_initialized = 1; - return EDD_SUCCESS; - } - - fprintf (stderr, "ERROR: failed to initialize lrmi library\n"); - return EDD_ERROR; -} - -EDDParameters * -edd_get_parameters (EDDCapability *ec) -{ - struct LRMI_regs regs; - EDDParameters *ep, *ret; - - return NULL; - - if (edd_lrmi_init() == EDD_ERROR) { - return NULL; - } - - (unsigned char *) ep = LRMI_alloc_real(sizeof(EDDParameters)); - if (ep == NULL) { - return NULL; - } - - memset(ep, 0, sizeof(EDDParameters)); - memset(®s, 0, sizeof(regs)); - - if (ec->version.major == 3) - ep->buffer_size = 0x42; - else if (ec->version.major == 2) - ep->buffer_size = 0x1e; - else - ep->buffer_size = 0x1a; - - regs.eax = 0x4800; - regs.edx = ec->drive & 0x00ff; - regs.es = ((u_int32_t) ep) >> 4; - regs.edi = ((u_int32_t) ep) & 0x0f; - - printf ("%p -> 0x%x 0x%x\n", ep, regs.es, regs.edi); - - if(LRMI_int(0x13, ®s) == 0) { - LRMI_free_real((unsigned char *) ep); - return NULL; - } - - /* XXX check return */ - printf ("0x%x\n", regs.eax); - printf ("0x%x\n", regs.flags); - - ret = malloc (sizeof (EDDParameters)); - if (ret == NULL) { - fprintf (stderr, "out of memory\n"); - abort(); - } - memcpy (ret, ep, sizeof (EDDParameters)); - LRMI_free_real((unsigned char *) ep); - - return ret; -} - -EDDCapability * -edd_supported(int drive) -{ - struct LRMI_regs regs; - - FILE *f = fopen("/proc/cmdline", "r"); - if (f) { - char buf[100]; - fgets(buf, sizeof(buf) - 1, f); - fclose(f); - if (strstr(buf, "lba32")) { - EDDCapability *ec = malloc (sizeof (EDDCapability)); - ec->edd = 1; - return ec; - } - - } - - if (edd_lrmi_init() == EDD_ERROR) { - return NULL; - } - - memset(®s, 0, sizeof(regs)); - regs.eax = 0x4100; - regs.ebx = 0x55aa; - regs.edx = drive & 0xff; - - /* Do it. */ - if (LRMI_int (0x13, ®s) == 0) { - return NULL; - } - - /* Check for successful return. */ - if(regs.ebx == 0xaa55) { - /* Supported, report capabilities */ - EDDCapability *ec = malloc (sizeof (EDDCapability)); - memset (ec, 0, sizeof (EDDCapability)); - - if (ec == NULL) { - fprintf (stderr, "out of memory\n"); - abort(); - } - - if ((regs.eax & 0xff00) == 0x0100) { - ec->version.major = 1; - ec->version.minor = 0; - } else if ((regs.eax & 0xff00) == 0x2000) { - ec->version.major = 2; - ec->version.minor = 0; - } else if ((regs.eax & 0xff00) == 0x2100) { - ec->version.major = 2; - ec->version.minor = 1; - } else if ((regs.eax & 0xff00) == 0x3000) { - ec->version.major = 3; - ec->version.minor = 0; - } else { -/* fprintf (stderr, "WARNING: Unknown EDD version 0x%x supported\n", */ -/* regs.eax & 0xff00); */ - /* XXX hack, get rid of stderr output */ - ec->version.major = 1; - ec->version.minor = 0; - } - if (regs.ecx & EDD_CAPABILITY_EDA) - ec->eda = 1; - - if (regs.ecx & EDD_CAPABILITY_REMOVABLE) - ec->removable = 1; - - if (regs.ecx & EDD_CAPABILITY_EDD) - ec->edd = 1; - - ec->drive = drive; - - return ec; - } else { - /* Not supported. */ - return NULL; - } -} - -#ifdef TESTING -int -main (void) -{ - int i; - EDDCapability *ec; - EDDParameters *ep; - - for (i = 0x80; i < 0x90; i++) { - if ((ec = edd_supported(i))) { - printf ("edd version %d.%d supported on 0x%x\n", ec->version.major, - ec->version.minor, i); - printf (" extended disk access %s\n", - ec->eda ? "supported" : "not supported"); - printf (" removable media functions %s\n", - ec->removable ? "supported" : "not supported"); - printf (" edd functions %s\n", - ec->edd ? "supported" : "not supported"); - ep = edd_get_parameters (ec); - if (ep) { - printf ("heads: %d cyl: %d sec/track: %d\n", - ep->heads, ep->cyls, ep->sectors); - free (ep); - } else - printf ("get_parameters call failed\n"); - free (ec); - } else - printf ("edd not supported on 0x%x\n", i); - } - - return 0; -} -#endif - - - - |