48,7 → 48,8 |
if (ofw_chosen == -1) |
halt(); |
|
if (ofw_get_property(ofw_chosen, "stdout", &ofw_stdout, sizeof(ofw_stdout)) <= 0) |
if (ofw_get_property(ofw_chosen, "stdout", &ofw_stdout, |
sizeof(ofw_stdout)) <= 0) |
ofw_stdout = 0; |
|
ofw_root = ofw_find_device("/"); |
57,11 → 58,13 |
halt(); |
} |
|
if (ofw_get_property(ofw_chosen, "mmu", &ofw_mmu, sizeof(ofw_mmu)) <= 0) { |
if (ofw_get_property(ofw_chosen, "mmu", &ofw_mmu, |
sizeof(ofw_mmu)) <= 0) { |
puts("\r\nError: Unable to get mmu property, halted.\r\n"); |
halt(); |
} |
if (ofw_get_property(ofw_chosen, "memory", &ofw_memory_prop, sizeof(ofw_memory_prop)) <= 0) { |
if (ofw_get_property(ofw_chosen, "memory", &ofw_memory_prop, |
sizeof(ofw_memory_prop)) <= 0) { |
puts("\r\nError: Unable to get memory property, halted.\r\n"); |
halt(); |
} |
81,14 → 84,18 |
|
/** Perform a call to OpenFirmware client interface. |
* |
* @param service String identifying the service requested. |
* @param nargs Number of input arguments. |
* @param nret Number of output arguments. This includes the return value. |
* @param rets Buffer for output arguments or NULL. The buffer must accommodate nret - 1 items. |
* @param service String identifying the service requested. |
* @param nargs Number of input arguments. |
* @param nret Number of output arguments. This includes the return |
* value. |
* @param rets Buffer for output arguments or NULL. The buffer must |
* accommodate nret - 1 items. |
* |
* @return Return value returned by the client interface. |
* @return Return value returned by the client interface. |
*/ |
unsigned long ofw_call(const char *service, const int nargs, const int nret, ofw_arg_t *rets, ...) |
unsigned long |
ofw_call(const char *service, const int nargs, const int nret, ofw_arg_t *rets, |
...) |
{ |
va_list list; |
ofw_args_t args; |
119,7 → 126,9 |
return ofw_call("finddevice", 1, 1, NULL, name); |
} |
|
int ofw_get_property(const phandle device, const char *name, void *buf, const int buflen) |
int |
ofw_get_property(const phandle device, const char *name, void *buf, |
const int buflen) |
{ |
return ofw_call("getprop", 4, 1, NULL, device, name, buf, buflen); |
} |
144,7 → 153,8 |
unsigned int ret = 1; |
|
if (ofw_get_property(device, "#address-cells", &ret, sizeof(ret)) <= 0) |
if (ofw_get_property(ofw_root, "#address-cells", &ret, sizeof(ret)) <= 0) |
if (ofw_get_property(ofw_root, "#address-cells", &ret, |
sizeof(ret)) <= 0) |
ret = OFW_ADDRESS_CELLS; |
|
return ret; |
156,7 → 166,8 |
unsigned int ret; |
|
if (ofw_get_property(device, "#size-cells", &ret, sizeof(ret)) <= 0) |
if (ofw_get_property(ofw_root, "#size-cells", &ret, sizeof(ret)) <= 0) |
if (ofw_get_property(ofw_root, "#size-cells", &ret, |
sizeof(ret)) <= 0) |
ret = OFW_SIZE_CELLS; |
|
return ret; |
192,7 → 203,8 |
ofw_arg_t result[4]; |
int shift; |
|
if (ofw_call("call-method", 3, 5, result, "translate", ofw_mmu, virt) != 0) { |
if (ofw_call("call-method", 3, 5, result, "translate", ofw_mmu, |
virt) != 0) { |
puts("Error: MMU method translate() failed, halting.\n"); |
halt(); |
} |
212,7 → 224,8 |
{ |
ofw_arg_t retaddr; |
|
if (ofw_call("call-method", 5, 2, &retaddr, "claim", ofw_mmu, 0, len, virt) != 0) { |
if (ofw_call("call-method", 5, 2, &retaddr, "claim", ofw_mmu, 0, len, |
virt) != 0) { |
puts("Error: MMU method claim() failed, halting.\n"); |
halt(); |
} |
269,8 → 282,8 |
phys_lo = (uintptr_t) phys; |
} |
|
return ofw_call("call-method", 7, 1, NULL, "map", ofw_mmu, mode, size, virt, |
phys_hi, phys_lo); |
return ofw_call("call-method", 7, 1, NULL, "map", ofw_mmu, mode, size, |
virt, phys_hi, phys_lo); |
} |
|
/** Save OpenFirmware physical memory map. |
281,10 → 294,13 |
*/ |
int ofw_memmap(memmap_t *map) |
{ |
unsigned int ac = ofw_get_address_cells(ofw_memory); |
unsigned int sc = ofw_get_size_cells(ofw_memory); |
unsigned int ac = ofw_get_address_cells(ofw_memory) / |
(sizeof(uintptr_t) / sizeof(uint32_t)); |
unsigned int sc = ofw_get_size_cells(ofw_memory) / |
(sizeof(uintptr_t) / sizeof(uint32_t)); |
printf("address cells: %d, size cells: %d. ", ac, sc); |
|
uint32_t buf[((ac + sc) * MEMMAP_MAX_RECORDS)]; |
uintptr_t buf[((ac + sc) * MEMMAP_MAX_RECORDS)]; |
int ret = ofw_get_property(ofw_memory, "reg", buf, sizeof(buf)); |
if (ret <= 0) /* ret is the number of written bytes */ |
return false; |
292,11 → 308,22 |
int pos; |
map->total = 0; |
map->count = 0; |
for (pos = 0; (pos < ret / sizeof(uint32_t)) && |
for (pos = 0; (pos < ret / sizeof(uintptr_t)) && |
(map->count < MEMMAP_MAX_RECORDS); pos += ac + sc) { |
void * start = (void *) ((uintptr_t) buf[pos + ac - 1]); |
void *start = (void *) (buf[pos + ac - 1]); |
unsigned int size = buf[pos + ac + sc - 1]; |
|
|
/* |
* This is a hot fix of the issue which occurs on machines |
* where there are holes in the physical memory (such as |
* SunBlade 1500). Should we detect a hole in the physical |
* memory, we will ignore any memory detected behind |
* the hole and pretend the hole does not exist. |
*/ |
if ((map->count > 0) && (map->zones[map->count - 1].start + |
map->zones[map->count - 1].size < start)) |
break; |
|
if (size > 0) { |
map->zones[map->count].start = start; |
map->zones[map->count].size = size; |
308,13 → 335,13 |
return true; |
} |
|
|
int ofw_screen(screen_t *screen) |
{ |
char device_name[BUF_SIZE]; |
uint32_t virtaddr; |
|
if (ofw_get_property(ofw_aliases, "screen", device_name, sizeof(device_name)) <= 0) |
if (ofw_get_property(ofw_aliases, "screen", device_name, |
sizeof(device_name)) <= 0) |
return false; |
|
phandle device = ofw_find_device(device_name); |
321,21 → 348,26 |
if (device == -1) |
return false; |
|
if (ofw_get_property(device, "address", &virtaddr, sizeof(virtaddr)) <= 0) |
if (ofw_get_property(device, "address", &virtaddr, |
sizeof(virtaddr)) <= 0) |
return false; |
|
screen->addr = (void *) ((uintptr_t) virtaddr); |
|
if (ofw_get_property(device, "width", &screen->width, sizeof(screen->width)) <= 0) |
if (ofw_get_property(device, "width", &screen->width, |
sizeof(screen->width)) <= 0) |
return false; |
|
if (ofw_get_property(device, "height", &screen->height, sizeof(screen->height)) <= 0) |
if (ofw_get_property(device, "height", &screen->height, |
sizeof(screen->height)) <= 0) |
return false; |
|
if (ofw_get_property(device, "depth", &screen->bpp, sizeof(screen->bpp)) <= 0) |
if (ofw_get_property(device, "depth", &screen->bpp, |
sizeof(screen->bpp)) <= 0) |
return false; |
|
if (ofw_get_property(device, "linebytes", &screen->scanline, sizeof(screen->scanline)) <= 0) |
if (ofw_get_property(device, "linebytes", &screen->scanline, |
sizeof(screen->scanline)) <= 0) |
return false; |
|
return true; |