diff options
Diffstat (limited to 'c/src/lib/libbsp/sparc64/shared/helenos/boot/genarch/ofw.c')
-rw-r--r-- | c/src/lib/libbsp/sparc64/shared/helenos/boot/genarch/ofw.c | 464 |
1 files changed, 0 insertions, 464 deletions
diff --git a/c/src/lib/libbsp/sparc64/shared/helenos/boot/genarch/ofw.c b/c/src/lib/libbsp/sparc64/shared/helenos/boot/genarch/ofw.c deleted file mode 100644 index 2bbc490636..0000000000 --- a/c/src/lib/libbsp/sparc64/shared/helenos/boot/genarch/ofw.c +++ /dev/null @@ -1,464 +0,0 @@ -/* - * 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. - */ - -/* - * Modifications are made to compile for RTEMS. Removes asm.h and printf.h. - * Adds asm.h (rtems bsp). Adds ofw_read() and ofw_stdin variable. Uses - * printk instead of puts for error messages. - * - */ - -#include <bsp.h> -#include <rtems/bspIo.h> - -#include <boot/ofw.h> -#include <boot/ofwarch.h> -#if 0 -#include <boot/printf.h> -#include <boot/asm.h> -#endif -#include <boot/types.h> -#include <string.h> -#include <asm.h> - -#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) - -uintptr_t ofw_cif; - -phandle ofw_chosen; -ihandle ofw_stdout; -ihandle ofw_stdin; - -phandle ofw_root; -ihandle ofw_mmu; -ihandle ofw_memory_prop; -phandle ofw_memory; - -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; - - if (ofw_get_property(ofw_chosen, "stdin", &ofw_stdin, - sizeof(ofw_stdin)) <= 0) - ofw_stdin = 0; - - ofw_root = ofw_find_device("/"); - if (ofw_root == -1) { - printk("\r\nError: Unable to find / device, halted.\r\n"); - halt(); - } - - if (ofw_get_property(ofw_chosen, "mmu", &ofw_mmu, - sizeof(ofw_mmu)) <= 0) { - printk("\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) { - printk("\r\nError: Unable to get memory property, halted.\r\n"); - halt(); - } - - ofw_memory = ofw_find_device("/memory"); - if (ofw_memory == -1) { - printk("\r\nError: Unable to find /memory 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_read(void *str, const int len) -{ - if (ofw_stdin == 0) - return; - - ofw_call("read", 3, 1, NULL, ofw_stdin, 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) { - printk("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 unsigned int len) -{ - ofw_arg_t retaddr; - - if (ofw_call("call-method", 5, 2, &retaddr, "claim", ofw_mmu, 0, len, - virt) != 0) { - printk("Error: MMU method claim() failed, halting.\n"); - halt(); - } - - return (void *) retaddr; -} - -static void *ofw_claim_phys_internal(const void *phys, const unsigned int len, const unsigned int alignment) -{ - /* - * Note that the return value check 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. - */ - - if (sizeof(unative_t) == 8) { - ofw_arg_t retaddr[2]; - int shift = 32; - - if (ofw_call("call-method", 6, 3, retaddr, "claim", - ofw_memory_prop, alignment, len, ((uintptr_t) phys) >> shift, - ((uintptr_t) phys) & ((uint32_t) -1)) != 0) { - printk("Error: memory method claim() failed, halting.\n"); - halt(); - } - - return (void *) ((retaddr[0] << shift) | retaddr[1]); - } else { - ofw_arg_t retaddr[1]; - - if (ofw_call("call-method", 5, 2, retaddr, "claim", - ofw_memory_prop, alignment, len, (uintptr_t) phys) != 0) { - printk("Error: memory method claim() failed, halting.\n"); - halt(); - } - - return (void *) retaddr[0]; - } -} - -void *ofw_claim_phys(const void *phys, const unsigned int len) -{ - return ofw_claim_phys_internal(phys, len, 0); -} - -void *ofw_claim_phys_any(const unsigned int len, const unsigned int alignment) -{ - return ofw_claim_phys_internal(NULL, len, alignment); -} - -int ofw_map(const void *phys, const void *virt, const unsigned 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; -} - -static void ofw_setup_screen(phandle handle) -{ - /* Check for device type */ - char device_type[OFW_TREE_PROPERTY_MAX_VALUELEN]; - if (ofw_get_property(handle, "device_type", device_type, OFW_TREE_PROPERTY_MAX_VALUELEN) <= 0) - return; - - device_type[OFW_TREE_PROPERTY_MAX_VALUELEN - 1] = '\0'; - if (strcmp(device_type, "display") != 0) - return; - - /* Check for 8 bit depth */ - uint32_t depth; - if (ofw_get_property(handle, "depth", &depth, sizeof(uint32_t)) <= 0) - depth = 0; - - /* Get device path */ - static char path[OFW_TREE_PATH_MAX_LEN + 1]; - size_t len = ofw_package_to_path(handle, path, OFW_TREE_PATH_MAX_LEN); - if (len == -1) - return; - - path[len] = '\0'; - - /* Open the display to initialize it */ - ihandle screen = ofw_open(path); - if (screen == -1) - return; - - if (depth == 8) { - /* 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)); - } - } -} - -static void ofw_setup_screens_internal(phandle current) -{ - while ((current != 0) && (current != -1)) { - ofw_setup_screen(current); - - /* - * Recursively process the potential child node. - */ - phandle child = ofw_get_child_node(current); - if ((child != 0) && (child != -1)) - ofw_setup_screens_internal(child); - - /* - * 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. - */ - phandle peer = ofw_get_peer_node(current); - if ((peer != 0) && (peer != -1)) { - current = peer; - /* - * Process the peer in next iteration. - */ - continue; - } - - /* - * No more peers on this level. - */ - break; - } -} - -/** Setup all screens which can be detected. - * - * Open all screens which can be detected and set up the palette for the 8-bit - * color depth configuration so that the 3:2:3 color scheme can be used. - * Check that setting the palette makes sense (the color depth is not greater - * than 8). - * - */ -void ofw_setup_screens(void) -{ - ofw_setup_screens_internal(ofw_root); -} - -void ofw_quiesce(void) -{ - ofw_call("quiesce", 0, 0, NULL); -} |