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-rw-r--r--c/src/lib/libbsp/sparc64/shared/helenos/boot/genarch/ofw.c464
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);
-}