diff options
Diffstat (limited to 'sys/arch/arc/arc/arcbios.c')
| -rw-r--r-- | sys/arch/arc/arc/arcbios.c | 191 |
1 files changed, 188 insertions, 3 deletions
diff --git a/sys/arch/arc/arc/arcbios.c b/sys/arch/arc/arc/arcbios.c index d6b9f0beded..075d174dff2 100644 --- a/sys/arch/arc/arc/arcbios.c +++ b/sys/arch/arc/arc/arcbios.c @@ -1,4 +1,4 @@ -/* $OpenBSD: arcbios.c,v 1.1 1996/09/06 04:57:51 imp Exp $ */ +/* $OpenBSD: arcbios.c,v 1.2 1996/09/14 15:58:11 pefo Exp $ */ /*- * Copyright (c) 1996 M. Warner Losh. All rights reserved. * @@ -38,12 +38,197 @@ arc_param_blk_t *bios_base = (arc_param_blk_t *) 0x80001000; extern int cputype; /* Mother board type */ +extern int physmem; /* Total physical memory size */ + +char buf[100]; /*XXX*/ +arc_dsp_stat_t displayinfo; /* Save area for display status info. */ + +/* + * ARC Bios trampoline code. + */ +#define ARC_Call(Name,Offset) \ +__asm__("\n" \ +" .set noreorder\n" \ +" .globl " #Name "\n" \ +#Name":\n" \ +" lw $2, 0x80001020\n"\ +" lw $2," #Offset "($2)\n"\ +" jr $2\n" \ +" nop\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); /* - * Incomplate version of bios_ident + * Simple getchar/putchar interface. + */ + +bios_getchar() +{ + char buf[4]; + int cnt; + + if(Bios_Read(0, &buf, 1, &cnt) != 0) + return(-1); + return(buf[0] & 255); +} + +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; + } + if(Bios_Write(1, &buf, cnt, &cnt) != 0) + return(-1); + return(0); +} + +bios_putstring(s) +char *s; +{ + while(*s) { + bios_putchar(*s++); + } +} + +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) { + sprintf(buf, "mem %d, 0x%x, 0x%x\n", + descr->Type, + descr->BasePage * 4096, + descr->PageCount * 4096); + bios_putstring(buf); + + 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); + } + + for( i = 0; i < MAXMEMSEGS; i++) { + sprintf(buf, "MEM %d, 0x%x, 0x%x\n",i, + mem_layout[i].mem_start, + mem_layout[i].mem_size); + bios_putstring(buf); + } +} +/* + * Incomplete version of bios_ident */ void bios_ident() { - cputype = DESKSTATION_TYNE; + bios_putstring("calling bios_ident\n"); + bios_configure_memory(); + displayinfo = *(arc_dsp_stat_t *)Bios_GetDisplayStatus(1); + cputype = ACER_PICA_61; +} + + +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; } |