| /tags/0.4.0/boot/genarch/ofw.h |
|---|
| 0,0 → 1,129 |
| /* |
| * Copyright (c) 2005 Martin Decky |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef BOOT_OFW_H_ |
| #define BOOT_OFW_H_ |
| #include <types.h> |
| #include <stdarg.h> |
| #define BUF_SIZE 1024 |
| #define MEMMAP_MAX_RECORDS 32 |
| #define MAX_OFW_ARGS 12 |
| typedef unative_t ofw_arg_t; |
| typedef unsigned int ihandle; |
| typedef unsigned int phandle; |
| /** OpenFirmware command structure |
| * |
| */ |
| typedef struct { |
| ofw_arg_t service; /**< Command name. */ |
| ofw_arg_t nargs; /**< Number of in arguments. */ |
| ofw_arg_t nret; /**< Number of out arguments. */ |
| ofw_arg_t args[MAX_OFW_ARGS]; /**< List of arguments. */ |
| } ofw_args_t; |
| typedef struct { |
| void *start; |
| uint32_t size; |
| } memzone_t; |
| typedef struct { |
| uint32_t total; |
| uint32_t count; |
| memzone_t zones[MEMMAP_MAX_RECORDS]; |
| } memmap_t; |
| typedef struct { |
| void *addr; |
| uint32_t width; |
| uint32_t height; |
| uint32_t bpp; |
| uint32_t scanline; |
| } screen_t; |
| typedef struct { |
| void *addr; |
| uint32_t size; |
| } macio_t; |
| typedef struct { |
| uint32_t info; |
| uint32_t addr_hi; |
| uint32_t addr_lo; |
| } pci_addr_t; |
| typedef struct { |
| pci_addr_t addr; |
| uint32_t size_hi; |
| uint32_t size_lo; |
| } pci_reg_t; |
| extern uintptr_t ofw_cif; |
| extern phandle ofw_chosen; |
| extern ihandle ofw_stdout; |
| extern phandle ofw_root; |
| extern ihandle ofw_mmu; |
| extern phandle ofw_memory; |
| extern phandle ofw_aliases; |
| extern void ofw_init(void); |
| extern void ofw_write(const char *str, const int len); |
| extern int ofw_get_property(const phandle device, const char *name, void *buf, const int buflen); |
| extern int ofw_get_proplen(const phandle device, const char *name); |
| extern int ofw_next_property(const phandle device, char *previous, char *buf); |
| extern phandle ofw_get_child_node(const phandle node); |
| extern phandle ofw_get_peer_node(const phandle node); |
| extern phandle ofw_find_device(const char *name); |
| extern int ofw_package_to_path(const phandle device, char *buf, const int buflen); |
| extern int ofw(ofw_args_t *arg); |
| extern unsigned long ofw_call(const char *service, const int nargs, const int nret, ofw_arg_t *rets, ...); |
| extern unsigned int ofw_get_address_cells(const phandle device); |
| extern unsigned int ofw_get_size_cells(const phandle device); |
| extern void *ofw_translate(const void *virt); |
| extern int ofw_translate_failed(ofw_arg_t flag); |
| extern void *ofw_claim_virt(const void *virt, const int len); |
| extern void *ofw_claim_phys(const void *virt, const int len); |
| extern int ofw_map(const void *phys, const void *virt, const int size, const int mode); |
| extern int ofw_memmap(memmap_t *map); |
| extern int ofw_screen(screen_t *screen); |
| extern int ofw_macio(macio_t *macio); |
| extern int ofw_setup_palette(void); |
| extern void ofw_quiesce(void); |
| #endif |
| /tags/0.4.0/boot/genarch/ofw.c |
|---|
| 0,0 → 1,425 |
| /* |
| * Copyright (c) 2005 Martin Decky |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #include <ofw.h> |
| #include <ofwarch.h> |
| #include <printf.h> |
| #include <asm.h> |
| #include <types.h> |
| uintptr_t ofw_cif; |
| phandle ofw_chosen; |
| ihandle ofw_stdout; |
| phandle ofw_root; |
| ihandle ofw_mmu; |
| ihandle ofw_memory_prop; |
| phandle ofw_memory; |
| phandle ofw_aliases; |
| void ofw_init(void) |
| { |
| ofw_chosen = ofw_find_device("/chosen"); |
| if (ofw_chosen == -1) |
| halt(); |
| if (ofw_get_property(ofw_chosen, "stdout", &ofw_stdout, |
| sizeof(ofw_stdout)) <= 0) |
| ofw_stdout = 0; |
| ofw_root = ofw_find_device("/"); |
| if (ofw_root == -1) { |
| puts("\r\nError: Unable to find / device, halted.\r\n"); |
| halt(); |
| } |
| 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) { |
| puts("\r\nError: Unable to get memory property, halted.\r\n"); |
| halt(); |
| } |
| ofw_memory = ofw_find_device("/memory"); |
| if (ofw_memory == -1) { |
| puts("\r\nError: Unable to find /memory device, halted.\r\n"); |
| halt(); |
| } |
| ofw_aliases = ofw_find_device("/aliases"); |
| if (ofw_aliases == -1) { |
| puts("\r\nError: Unable to find /aliases device, halted.\r\n"); |
| halt(); |
| } |
| } |
| /** 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. |
| * |
| * @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, |
| ...) |
| { |
| va_list list; |
| ofw_args_t args; |
| int i; |
| args.service = (ofw_arg_t) service; |
| args.nargs = nargs; |
| args.nret = nret; |
| va_start(list, rets); |
| for (i = 0; i < nargs; i++) |
| args.args[i] = va_arg(list, ofw_arg_t); |
| va_end(list); |
| for (i = 0; i < nret; i++) |
| args.args[i + nargs] = 0; |
| (void) ofw(&args); |
| for (i = 1; i < nret; i++) |
| rets[i - 1] = args.args[i + nargs]; |
| return args.args[nargs]; |
| } |
| phandle ofw_find_device(const char *name) |
| { |
| return ofw_call("finddevice", 1, 1, NULL, name); |
| } |
| 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); |
| } |
| int ofw_get_proplen(const phandle device, const char *name) |
| { |
| return ofw_call("getproplen", 2, 1, NULL, device, name); |
| } |
| int ofw_next_property(const phandle device, char *previous, char *buf) |
| { |
| return ofw_call("nextprop", 3, 1, NULL, device, previous, buf); |
| } |
| int ofw_package_to_path(const phandle device, char *buf, const int buflen) |
| { |
| return ofw_call("package-to-path", 3, 1, NULL, device, buf, buflen); |
| } |
| unsigned int ofw_get_address_cells(const phandle device) |
| { |
| 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) |
| ret = OFW_ADDRESS_CELLS; |
| return ret; |
| } |
| unsigned int ofw_get_size_cells(const phandle device) |
| { |
| 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) |
| ret = OFW_SIZE_CELLS; |
| return ret; |
| } |
| phandle ofw_get_child_node(const phandle node) |
| { |
| return ofw_call("child", 1, 1, NULL, node); |
| } |
| phandle ofw_get_peer_node(const phandle node) |
| { |
| return ofw_call("peer", 1, 1, NULL, node); |
| } |
| static ihandle ofw_open(const char *name) |
| { |
| return ofw_call("open", 1, 1, NULL, name); |
| } |
| void ofw_write(const char *str, const int len) |
| { |
| if (ofw_stdout == 0) |
| return; |
| ofw_call("write", 3, 1, NULL, ofw_stdout, str, len); |
| } |
| void *ofw_translate(const void *virt) |
| { |
| ofw_arg_t result[4]; |
| int shift; |
| if (ofw_call("call-method", 4, 5, result, "translate", ofw_mmu, |
| virt, 0) != 0) { |
| puts("Error: MMU method translate() failed, halting.\n"); |
| halt(); |
| } |
| if (ofw_translate_failed(result[0])) |
| return NULL; |
| if (sizeof(unative_t) == 8) |
| shift = 32; |
| else |
| shift = 0; |
| return (void *) ((result[2] << shift) | result[3]); |
| } |
| void *ofw_claim_virt(const void *virt, const int len) |
| { |
| ofw_arg_t retaddr; |
| if (ofw_call("call-method", 5, 2, &retaddr, "claim", ofw_mmu, 0, len, |
| virt) != 0) { |
| puts("Error: MMU method claim() failed, halting.\n"); |
| halt(); |
| } |
| return (void *) retaddr; |
| } |
| void *ofw_claim_phys(const void *phys, const int len) |
| { |
| ofw_arg_t retaddr[2]; |
| int shift; |
| if (sizeof(unative_t) == 8) { |
| shift = 32; |
| if (ofw_call("call-method", 6, 3, retaddr, "claim", |
| ofw_memory_prop, 0, len, ((uintptr_t) phys) >> shift, |
| ((uintptr_t) phys) & ((uint32_t) -1)) != 0) { |
| /* |
| * Note that this will help us to discover |
| * conflicts between OpenFirmware allocations |
| * and our use of physical memory. |
| * It is better to detect collisions here |
| * than to cope with weird errors later. |
| * |
| * So this is really not to make the loader |
| * more generic; it is here for debugging |
| * purposes. |
| */ |
| puts("Error: memory method claim() failed, halting.\n"); |
| halt(); |
| } |
| } else { |
| shift = 0; |
| /* |
| * FIXME: the number of arguments is probably different... |
| */ |
| puts("Error: 32-bit ofw_claim_phys not implemented.\n"); |
| halt(); |
| } |
| return (void *) ((retaddr[0] << shift) | retaddr[1]); |
| } |
| int ofw_map(const void *phys, const void *virt, const int size, const int mode) |
| { |
| uintptr_t phys_hi, phys_lo; |
| if (sizeof(unative_t) == 8) { |
| int shift = 32; |
| phys_hi = (uintptr_t) phys >> shift; |
| phys_lo = (uintptr_t) phys & 0xffffffff; |
| } else { |
| phys_hi = 0; |
| phys_lo = (uintptr_t) phys; |
| } |
| return ofw_call("call-method", 7, 1, NULL, "map", ofw_mmu, mode, size, |
| virt, phys_hi, phys_lo); |
| } |
| /** Save OpenFirmware physical memory map. |
| * |
| * @param map Memory map structure where the map will be saved. |
| * |
| * @return Zero on failure, non-zero on success. |
| */ |
| int ofw_memmap(memmap_t *map) |
| { |
| 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)); |
| 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; |
| int pos; |
| map->total = 0; |
| map->count = 0; |
| for (pos = 0; (pos < ret / sizeof(uintptr_t)) && |
| (map->count < MEMMAP_MAX_RECORDS); pos += ac + sc) { |
| 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; |
| map->count++; |
| map->total += size; |
| } |
| } |
| 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) |
| return false; |
| phandle device = ofw_find_device(device_name); |
| if (device == -1) |
| return false; |
| 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) |
| return false; |
| 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) |
| return false; |
| if (ofw_get_property(device, "linebytes", &screen->scanline, |
| sizeof(screen->scanline)) <= 0) |
| return false; |
| return true; |
| } |
| #define RED(i) (((i) >> 5) & ((1 << 3) - 1)) |
| #define GREEN(i) (((i) >> 3) & ((1 << 2) - 1)) |
| #define BLUE(i) ((i) & ((1 << 3) - 1)) |
| #define CLIP(i) ((i) <= 255 ? (i) : 255) |
| /** |
| * Sets up the palette for the 8-bit color depth configuration so that the |
| * 3:2:3 color scheme can be used. Checks that setting the palette makes sense |
| * (appropriate nodes exist in the OBP tree and the color depth is not greater |
| * than 8). |
| * |
| * @return true if the palette has been set, false otherwise |
| * |
| */ |
| int ofw_setup_palette(void) |
| { |
| char device_name[BUF_SIZE]; |
| /* resolve alias */ |
| if (ofw_get_property(ofw_aliases, "screen", device_name, |
| sizeof(device_name)) <= 0) |
| return false; |
| /* for depth greater than 8 it makes no sense to set up the palette */ |
| uint32_t depth; |
| phandle device = ofw_find_device(device_name); |
| if (device == -1) |
| return false; |
| if (ofw_get_property(device, "depth", &depth, sizeof(uint32_t)) <= 0) |
| return false; |
| if (depth != 8) |
| return false; |
| /* required in order to be able to make a method call */ |
| ihandle screen = ofw_open(device_name); |
| if (screen == -1) |
| return false; |
| /* setup the palette so that the (inverted) 3:2:3 scheme is usable */ |
| unsigned int i; |
| for (i = 0; i < 256; i++) |
| ofw_call("call-method", 6, 1, NULL, "color!", screen, |
| 255 - i, CLIP(BLUE(i) * 37), GREEN(i) * 85, CLIP(RED(i) * 37)); |
| return true; |
| } |
| void ofw_quiesce(void) |
| { |
| ofw_call("quiesce", 0, 0, NULL); |
| } |
| /tags/0.4.0/boot/genarch/ofw_tree.c |
|---|
| 0,0 → 1,257 |
| /* |
| * Copyright (c) 2006 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #include <ofw_tree.h> |
| #include <ofw.h> |
| #include <types.h> |
| #include <string.h> |
| #include <balloc.h> |
| #include <asm.h> |
| #define MAX_PATH_LEN 256 |
| static ofw_tree_node_t *ofw_tree_node_alloc(void) |
| { |
| return balloc(sizeof(ofw_tree_node_t), sizeof(ofw_tree_node_t)); |
| } |
| static ofw_tree_property_t *ofw_tree_properties_alloc(unsigned count) |
| { |
| return balloc(count * sizeof(ofw_tree_property_t), |
| sizeof(ofw_tree_property_t)); |
| } |
| static void *ofw_tree_space_alloc(size_t size) |
| { |
| char *addr; |
| /* |
| * What we do here is a nasty hack :-) |
| * Problem: string property values that are allocated via this |
| * function typically do not contain the trailing '\0'. This |
| * is very uncomfortable for kernel, which is supposed to deal |
| * with the properties. |
| * Solution: when allocating space via this function, we always |
| * allocate space for the extra '\0' character that we store |
| * behind the requested memory. |
| */ |
| addr = balloc(size + 1, size); |
| if (addr) |
| addr[size] = '\0'; |
| return addr; |
| } |
| /** Transfer information from one OpenFirmware node into its memory |
| * representation. |
| * |
| * Transfer entire information from the OpenFirmware device tree 'current' node |
| * to its memory representation in 'current_node'. This function recursively |
| * processes all node's children. Node's peers are processed iteratively in |
| * order to prevent stack from overflowing. |
| * |
| * @param current_node Pointer to uninitialized ofw_tree_node structure that |
| * will become the memory represenation of 'current'. |
| * @param parent_node Parent ofw_tree_node structure or NULL in case of root |
| * node. |
| * @param current OpenFirmware phandle to the current device tree node. |
| */ |
| static void ofw_tree_node_process(ofw_tree_node_t *current_node, |
| ofw_tree_node_t *parent_node, phandle current) |
| { |
| static char path[MAX_PATH_LEN + 1]; |
| static char name[OFW_TREE_PROPERTY_MAX_NAMELEN]; |
| static char name2[OFW_TREE_PROPERTY_MAX_NAMELEN]; |
| phandle peer; |
| phandle child; |
| size_t len; |
| int i; |
| while (current_node) { |
| /* |
| * Initialize node. |
| */ |
| current_node->parent = parent_node; |
| current_node->peer = NULL; |
| current_node->child = NULL; |
| current_node->node_handle = current; |
| current_node->properties = 0; |
| current_node->property = NULL; |
| current_node->device = NULL; |
| /* |
| * Get the disambigued name. |
| */ |
| len = ofw_package_to_path(current, path, MAX_PATH_LEN); |
| if (len == -1) |
| return; |
| path[len] = '\0'; |
| for (i = len - 1; i >= 0 && path[i] != '/'; i--) |
| ; |
| i++; /* do not include '/' */ |
| len -= i; |
| /* add space for trailing '\0' */ |
| current_node->da_name = ofw_tree_space_alloc(len + 1); |
| if (!current_node->da_name) |
| return; |
| memcpy(current_node->da_name, &path[i], len); |
| current_node->da_name[len] = '\0'; |
| /* |
| * Recursively process the potential child node. |
| */ |
| child = ofw_get_child_node(current); |
| if (child != 0 && child != -1) { |
| ofw_tree_node_t *child_node; |
| child_node = ofw_tree_node_alloc(); |
| if (child_node) { |
| ofw_tree_node_process(child_node, current_node, |
| child); |
| current_node->child = child_node; |
| } |
| } |
| /* |
| * Count properties. |
| */ |
| name[0] = '\0'; |
| while (ofw_next_property(current, name, name2) == 1) { |
| current_node->properties++; |
| memcpy(name, name2, OFW_TREE_PROPERTY_MAX_NAMELEN); |
| } |
| if (!current_node->properties) |
| return; |
| /* |
| * Copy properties. |
| */ |
| current_node->property = |
| ofw_tree_properties_alloc(current_node->properties); |
| if (!current_node->property) |
| return; |
| name[0] = '\0'; |
| for (i = 0; ofw_next_property(current, name, name2) == 1; i++) { |
| size_t size; |
| if (i == current_node->properties) |
| break; |
| memcpy(name, name2, OFW_TREE_PROPERTY_MAX_NAMELEN); |
| memcpy(current_node->property[i].name, name, |
| OFW_TREE_PROPERTY_MAX_NAMELEN); |
| current_node->property[i].name[ |
| OFW_TREE_PROPERTY_MAX_NAMELEN] = '\0'; |
| size = ofw_get_proplen(current, name); |
| current_node->property[i].size = size; |
| if (size) { |
| void *buf; |
| buf = ofw_tree_space_alloc(size); |
| if (current_node->property[i].value = buf) { |
| /* |
| * Copy property value to memory node. |
| */ |
| (void) ofw_get_property(current, name, |
| buf, size); |
| } |
| } else { |
| current_node->property[i].value = NULL; |
| } |
| } |
| /* Just in case we ran out of memory. */ |
| current_node->properties = i; |
| /* |
| * Iteratively process the next peer node. |
| * Note that recursion is a bad idea here. |
| * Due to the topology of the OpenFirmware device tree, |
| * the nesting of peer nodes could be to wide and the |
| * risk of overflowing the stack is too real. |
| */ |
| peer = ofw_get_peer_node(current); |
| if (peer != 0 && peer != -1) { |
| ofw_tree_node_t *peer_node; |
| peer_node = ofw_tree_node_alloc(); |
| if (peer_node) { |
| current_node->peer = peer_node; |
| current_node = peer_node; |
| current = peer; |
| /* |
| * Process the peer in next iteration. |
| */ |
| continue; |
| } |
| } |
| /* |
| * No more peers on this level. |
| */ |
| break; |
| } |
| } |
| /** Construct memory representation of OpenFirmware device tree. |
| * |
| * @return NULL on failure or pointer to the root node. |
| */ |
| ofw_tree_node_t *ofw_tree_build(void) |
| { |
| ofw_tree_node_t *root; |
| phandle ssm_node; |
| ofw_tree_node_t *ssm; |
| root = ofw_tree_node_alloc(); |
| if (root) |
| ofw_tree_node_process(root, NULL, ofw_root); |
| /* |
| * The firmware client interface does not automatically include the |
| * "ssm" node in the list of children of "/". A nasty yet working |
| * solution is to explicitly stick "ssm" to the OFW tree. |
| */ |
| ssm_node = ofw_find_device("/ssm@0,0"); |
| if (ssm_node != -1) { |
| ssm = ofw_tree_node_alloc(); |
| if (ssm) { |
| ofw_tree_node_process(ssm, root, |
| ofw_find_device("/ssm@0,0")); |
| ssm->peer = root->child; |
| root->child = ssm; |
| } |
| } |
| return root; |
| } |
| /tags/0.4.0/boot/genarch/balloc.h |
|---|
| 0,0 → 1,44 |
| /* |
| * Copyright (c) 2006 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef BOOT_BALLOC_H_ |
| #define BOOT_BALLOC_H_ |
| #include <types.h> |
| #define BALLOC_MAX_SIZE (128 * 1024) |
| typedef struct { |
| uintptr_t base; |
| size_t size; |
| } ballocs_t; |
| extern void balloc_init(ballocs_t *b, uintptr_t base); |
| extern void *balloc(size_t size, size_t alignment); |
| #endif |
| /tags/0.4.0/boot/genarch/include/softint |
|---|
| 0,0 → 1,0 |
| link ../../../kernel/genarch/include/softint |
| Property changes: |
| Added: svn:special |
| +* |
| \ No newline at end of property |
| /tags/0.4.0/boot/genarch/division.c |
|---|
| 0,0 → 1,0 |
| link ../../kernel/genarch/src/softint/division.c |
| Property changes: |
| Added: svn:special |
| +* |
| \ No newline at end of property |
| /tags/0.4.0/boot/genarch/balloc.c |
|---|
| 0,0 → 1,57 |
| /* |
| * Copyright (c) 2006 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #include <balloc.h> |
| #include <types.h> |
| #include <align.h> |
| static ballocs_t *ballocs; |
| void balloc_init(ballocs_t *b, uintptr_t base) |
| { |
| ballocs = b; |
| ballocs->base = base; |
| ballocs->size = 0; |
| } |
| void *balloc(size_t size, size_t alignment) |
| { |
| uintptr_t addr; |
| /* Enforce minimal alignment. */ |
| alignment = ALIGN_UP(alignment, 4); |
| addr = ballocs->base + ALIGN_UP(ballocs->size, alignment); |
| if (ALIGN_UP(ballocs->size, alignment) + size > BALLOC_MAX_SIZE) |
| return NULL; |
| ballocs->size = ALIGN_UP(ballocs->size, alignment) + size; |
| return (void *) addr; |
| } |
| /tags/0.4.0/boot/genarch/ofw_tree.h |
|---|
| 0,0 → 1,65 |
| /* |
| * Copyright (c) 2006 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef BOOT_OFW_TREE_H_ |
| #define BOOT_OFW_TREE_H_ |
| #include <types.h> |
| #include <ofw.h> |
| #define OFW_TREE_PROPERTY_MAX_NAMELEN 32 |
| typedef struct ofw_tree_node ofw_tree_node_t; |
| typedef struct ofw_tree_property ofw_tree_property_t; |
| /** Memory representation of OpenFirmware device tree node. */ |
| struct ofw_tree_node { |
| ofw_tree_node_t *parent; |
| ofw_tree_node_t *peer; |
| ofw_tree_node_t *child; |
| uint32_t node_handle; /**< Old OpenFirmware node handle. */ |
| char *da_name; /**< Disambigued name. */ |
| unsigned properties; /**< Number of properties. */ |
| ofw_tree_property_t *property; |
| void *device; /**< Member used solely by the kernel. */ |
| }; |
| /** Memory representation of OpenFirmware device tree node property. */ |
| struct ofw_tree_property { |
| char name[OFW_TREE_PROPERTY_MAX_NAMELEN]; |
| size_t size; |
| void *value; |
| }; |
| extern ofw_tree_node_t *ofw_tree_build(void); |
| #endif |