diff options
Diffstat (limited to 'sys/arch/arc/arc/arcbios.c')
| -rw-r--r-- | sys/arch/arc/arc/arcbios.c | 364 |
1 files changed, 0 insertions, 364 deletions
diff --git a/sys/arch/arc/arc/arcbios.c b/sys/arch/arc/arc/arcbios.c deleted file mode 100644 index ac9f0fb4470..00000000000 --- a/sys/arch/arc/arc/arcbios.c +++ /dev/null @@ -1,364 +0,0 @@ -/* $OpenBSD: arcbios.c,v 1.8 1997/05/01 15:13:28 pefo Exp $ */ -/*- - * Copyright (c) 1996 M. Warner Losh. All rights reserved. - * Copyright (c) 1996 Per Fogelstrom. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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 <sys/param.h> -#include <sys/systm.h> -#include <sys/proc.h> -#include <sys/user.h> -#include <lib/libkern/libkern.h> -#include <machine/pte.h> -#include <machine/cpu.h> -#include <machine/memconf.h> -#include <machine/param.h> -#include <arc/arc/arcbios.h> -#include <arc/arc/arctype.h> - -arc_param_blk_t *bios_base = (arc_param_blk_t *) 0x80001000; - -extern int cputype; /* Mother board type */ -extern int physmem; /* Total physical memory size */ - -int Bios_Read __P((int, char *, int, int *)); -int Bios_Write __P((int, char *, int, int *)); -int Bios_Open __P((char *, int, u_int *)); -int Bios_Close __P((u_int)); -arc_mem_t *Bios_GetMemoryDescriptor __P((arc_mem_t *)); -arc_sid_t *Bios_GetSystemId __P((void)); -arc_config_t *Bios_GetChild __P((arc_config_t *)); -arc_dsp_stat_t *Bios_GetDisplayStatus __P((int)); - -static void bios_configure_memory __P((void)); -static int get_cpu_type __P((void)); - -char buf[100]; /*XXX*/ -arc_dsp_stat_t displayinfo; /* Save area for display status info. */ - -static struct systypes { - char *sys_vend; /* Vendor ID if name is ambigous */ - char *sys_name; /* May be left NULL if name is sufficient */ - int sys_type; -} sys_types[] = { - { NULL, "PICA-61", ACER_PICA_61 }, - { NULL, "DESKTECH-TYNE", DESKSTATION_TYNE }, - { NULL, "DESKTECH-ARCStation I", DESKSTATION_RPC44 }, - { NULL, "Microsoft-Jazz", MAGNUM }, -}; - -#define KNOWNSYSTEMS (sizeof(sys_types) / sizeof(struct systypes)) - -/* - * ARC Bios trampoline code. - */ -#define ARC_Call(Name,Offset) \ -__asm__("\n" \ -" .text\n" \ -" .ent " #Name "\n" \ -" .align 3\n" \ -" .set noreorder\n" \ -" .globl " #Name "\n" \ -#Name":\n" \ -" lw $2, 0x80001020\n"\ -" lw $2," #Offset "($2)\n"\ -" jr $2\n" \ -" nop\n" \ -" .end " #Name "\n" ); - -ARC_Call(Bios_Load, 0x00); -ARC_Call(Bios_Invoke, 0x04); -ARC_Call(Bios_Execute, 0x08); -ARC_Call(Bios_Halt, 0x0c); -ARC_Call(Bios_PowerDown, 0x10); -ARC_Call(Bios_Restart, 0x14); -ARC_Call(Bios_Reboot, 0x18); -ARC_Call(Bios_EnterInteractiveMode, 0x1c); -ARC_Call(Bios_Unused1, 0x20); -ARC_Call(Bios_GetPeer, 0x24); -ARC_Call(Bios_GetChild, 0x28); -ARC_Call(Bios_GetParent, 0x2c); -ARC_Call(Bios_GetConfigurationData, 0x30); -ARC_Call(Bios_AddChild, 0x34); -ARC_Call(Bios_DeleteComponent, 0x38); -ARC_Call(Bios_GetComponent, 0x3c); -ARC_Call(Bios_SaveConfiguration, 0x40); -ARC_Call(Bios_GetSystemId, 0x44); -ARC_Call(Bios_GetMemoryDescriptor, 0x48); -ARC_Call(Bios_Unused2, 0x4c); -ARC_Call(Bios_GetTime, 0x50); -ARC_Call(Bios_GetRelativeTime, 0x54); -ARC_Call(Bios_GetDirectoryEntry, 0x58); -ARC_Call(Bios_Open, 0x5c); -ARC_Call(Bios_Close, 0x60); -ARC_Call(Bios_Read, 0x64); -ARC_Call(Bios_GetReadStatus, 0x68); -ARC_Call(Bios_Write, 0x6c); -ARC_Call(Bios_Seek, 0x70); -ARC_Call(Bios_Mount, 0x74); -ARC_Call(Bios_GetEnvironmentVariable, 0x78); -ARC_Call(Bios_SetEnvironmentVariable, 0x7c); -ARC_Call(Bios_GetFileInformation, 0x80); -ARC_Call(Bios_SetFileInformation, 0x84); -ARC_Call(Bios_FlushAllCaches, 0x88); -ARC_Call(Bios_TestUnicodeCharacter, 0x8c); -ARC_Call(Bios_GetDisplayStatus, 0x90); - -/* - * Simple getchar/putchar interface. - */ - -int -bios_getchar() -{ - char buf[4]; - int cnt; - - if(Bios_Read(0, &buf[0], 1, &cnt) != 0) - return(-1); - return(buf[0] & 255); -} - -void -bios_putchar(c) -char c; -{ - char buf[4]; - int cnt; - - if(c == '\n') { - buf[0] = '\r'; - buf[1] = c; - cnt = 2; - if(displayinfo.CursorYPosition < displayinfo.CursorMaxYPosition) - displayinfo.CursorYPosition++; - } - else { - buf[0] = c; - cnt = 1; - } - Bios_Write(1, &buf[0], cnt, &cnt); -} - -void -bios_putstring(s) -char *s; -{ - while(*s) { - bios_putchar(*s++); - } -} - -/* - * Get memory descriptor for the memory configuration and - * create a layout database used by pmap init to set up - * the memory system. Note that kernel option "MACHINE_NONCONTIG" - * must be set for systems with non contigous physical memory. - * - * Concatenate obvious adjecent segments. - */ -static void -bios_configure_memory() -{ - arc_mem_t *descr = 0; - struct mem_descriptor *m; - vm_offset_t seg_start, seg_end; - int i; - - descr = (arc_mem_t *)Bios_GetMemoryDescriptor(descr); - while(descr != 0) { - - seg_start = descr->BasePage * 4096; - seg_end = seg_start + descr->PageCount * 4096; - - switch(descr->Type) { - case BadMemory: /* Have no use for theese */ - break; - - case ExeceptionBlock: - case SystemParameterBlock: - case FreeMemory: - case FirmwareTemporary: - case FirmwarePermanent: - case FreeContigous: - physmem += descr->PageCount * 4096; - m = 0; - for( i = 0; i < MAXMEMSEGS; i++) { - if(mem_layout[i].mem_size == 0) { - if(m == 0) - m = &mem_layout[i]; /* free */ - } - else if(seg_end == mem_layout[i].mem_start) { - m = &mem_layout[i]; - m->mem_start = seg_start; - m->mem_size += seg_end - seg_start; - } - else if(mem_layout[i].mem_start + - mem_layout[i].mem_size == seg_start) { - m = &mem_layout[i]; - m->mem_size += seg_end - seg_start; - } - } - if(m && m->mem_size == 0) { - m->mem_start = seg_start; - m->mem_size = seg_end - seg_start; - } - break; - - case LoadedProgram: /* This is the loaded kernel */ - physmem += descr->PageCount * 4096; - break; - - default: /* Unknown type, leave it alone... */ - break; - } - descr = (arc_mem_t *)Bios_GetMemoryDescriptor(descr); - } - -#if 0 - for( i = 0; i < MAXMEMSEGS; i++) { - if(mem_layout[i].mem_size) { - sprintf(buf, "MEM %d, 0x%x, 0x%x\n",i, - mem_layout[i].mem_start, - mem_layout[i].mem_size); - bios_putstring(buf); - } - } -#endif -} - -/* - * Find out system type. - */ -static int -get_cpu_type() -{ - arc_config_t *cf; - arc_sid_t *sid; - int i; - - if((bios_base->magic != ARC_PARAM_BLK_MAGIC) && - (bios_base->magic != ARC_PARAM_BLK_MAGIC_BUG)) { - return(-1); /* This is not an ARC system */ - } - - sid = (arc_sid_t *)Bios_GetSystemId(); - cf = (arc_config_t *)Bios_GetChild(NULL); - if(cf) { - for(i = 0; i < KNOWNSYSTEMS; i++) { - if(strcmp(sys_types[i].sys_name, cf->id) != 0) - continue; - if(sys_types[i].sys_vend && - strncmp(sys_types[i].sys_vend, sid->vendor, 8) != 0) - continue; - return(sys_types[i].sys_type); /* Found it. */ - } - } - - bios_putstring("UNIDENTIFIED ARC SYSTEM `"); - if(cf) - bios_putstring(cf->id); - else - bios_putstring("????????"); - bios_putstring("' VENDOR `"); - sid->vendor[8] = 0; - bios_putstring("sid->vendor"); - bios_putstring("'. Please contact OpenBSD (www.openbsd.org).\n"); - while(1); -} - -/* - * Incomplete version of bios_ident - */ -void -bios_ident() -{ - cputype = get_cpu_type(); - if(cputype < 0) { - return; - } - bios_configure_memory(); - displayinfo = *(arc_dsp_stat_t *)Bios_GetDisplayStatus(1); -} - -/* - * Return geometry of the display. Used by pccons.c to set up the - * display configuration. - */ -void -bios_display_info(xpos, ypos, xsize, ysize) - int *xpos; - int *ypos; - int *xsize; - int *ysize; -{ - *xpos = displayinfo.CursorXPosition; - *ypos = displayinfo.CursorYPosition; - *xsize = displayinfo.CursorMaxXPosition; - *ysize = displayinfo.CursorMaxYPosition; -} - -/* - * Load the incore miniroot into memory. This is used for - * Initial booting before we have any file system. CD-rom booting. - */ -int -bios_load_miniroot(path, where) - char *path; - caddr_t where; -{ - u_int file; - u_int count; - int i; - char s[32]; - -static char mrdefault[] = {"scsi(0)disk(0)rdisk(0)partition(1)\\miniroot" }; - - bios_putstring("Loading miniroot:"); - - if(path == 0) - path = mrdefault; - bios_putstring(path); - bios_putstring("\n"); - - if((i = Bios_Open(path,0,&file)) != arc_ESUCCESS) { - sprintf(s, "Error %d. Load failed!\n", i); - bios_putstring(s); - return(-1); - } - do { - - i = Bios_Read(file, where, 4096, &count); - bios_putstring("."); - where += count; - } while((i == 0) && (count != 0)); - - Bios_Close(file); - bios_putstring("\nLoaded.\n"); - return(0); -} - |