*/
#include "probe_roms.h"
+#include "mdadm.h"
#include <unistd.h>
#include <signal.h>
#include <fcntl.h>
static void *rom_mem = MAP_FAILED;
static int rom_fd = -1;
-const static int rom_len = 0xf0000 - 0xc0000; /* option-rom memory region */
+static const int rom_len = 0xf0000 - 0xc0000; /* option-rom memory region */
static int _sigbus;
static unsigned long rom_align;
-#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
-
static void sigbus(int sig)
{
_sigbus = 1;
int probe_roms_init(unsigned long align)
{
- int fd;
+ int fd = -1;
int rc = 0;
/* valid values are 2048 and 512. 512 is for PCI-3.0 compliant
if (rc == 0)
rom_fd = fd;
- else
+ else {
+ if (fd >= 0)
+ close(fd);
probe_roms_exit();
-
+ }
return rc;
}
struct resource {
unsigned long start;
unsigned long end;
+ unsigned long data;
const char *name;
};
static struct resource system_rom_resource = {
.name = "System ROM",
.start = 0xf0000,
+ .data = 0,
.end = 0xfffff,
};
static struct resource extension_rom_resource = {
.name = "Extension ROM",
.start = 0xe0000,
+ .data = 0,
.end = 0xeffff,
};
static struct resource adapter_rom_resources[] = { {
- .name = "Adapter ROM",
+ .name = "Adapter ROM",
.start = 0xc8000,
+ .data = 0,
.end = 0,
}, {
- .name = "Adapter ROM",
+ .name = "Adapter ROM",
.start = 0,
+ .data = 0,
.end = 0,
}, {
- .name = "Adapter ROM",
+ .name = "Adapter ROM",
.start = 0,
+ .data = 0,
.end = 0,
}, {
- .name = "Adapter ROM",
+ .name = "Adapter ROM",
.start = 0,
+ .data = 0,
.end = 0,
}, {
- .name = "Adapter ROM",
+ .name = "Adapter ROM",
.start = 0,
+ .data = 0,
.end = 0,
}, {
- .name = "Adapter ROM",
+ .name = "Adapter ROM",
.start = 0,
+ .data = 0,
.end = 0,
} };
static struct resource video_rom_resource = {
- .name = "Video ROM",
+ .name = "Video ROM",
.start = 0xc0000,
+ .data = 0,
.end = 0xc7fff,
};
int scan_adapter_roms(scan_fn fn)
{
/* let scan_fn examing each of the adapter roms found by probe_roms */
- int i;
+ unsigned int i;
int found;
if (rom_fd < 0)
if (res->start) {
found = fn(isa_bus_to_virt(res->start),
- isa_bus_to_virt(res->end));
+ isa_bus_to_virt(res->end),
+ isa_bus_to_virt(res->data));
if (found)
break;
} else
const void *rom;
unsigned long start, length, upper;
unsigned char c;
- int i;
+ unsigned int i;
+ __u16 val=0;
if (rom_fd < 0)
return;
/* 0 < length <= 0x7f * 512, historically */
length = c * 512;
+ /* Retrieve 16-bit pointer to PCI Data Structure (offset 18h-19h)
+ * The data can be within 64KB forward of the first location
+ * of this code image. The pointer is in little-endian order
+ */
+
+ if (probe_address16(rom + 0x18, &val) != 0)
+ continue;
+ val = __le16_to_cpu(val);
+
/* but accept any length that fits if checksum okay */
if (!length || start + length > upper || !romchecksum(rom, length))
continue;
adapter_rom_resources[i].start = start;
+ adapter_rom_resources[i].data = start + (unsigned long) val;
adapter_rom_resources[i].end = start + length - 1;
start = adapter_rom_resources[i++].end & ~(rom_align - 1);
}
}
-