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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 332 | palkovsky | 1 | /* |
| 2 | * Copyright (C) 2005 Ondrej Palkovsky |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | #include <arch/drivers/arc.h> |
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| 30 | #include <arch/mm/page.h> |
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| 31 | #include <print.h> |
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| 32 | #include <arch.h> |
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| 33 | #include <arch/byteorder.h> |
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| 34 | |||
| 35 | /* This is a good joke, SGI HAS different types than NT bioses... */ |
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| 36 | /* Here is the SGI type */ |
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| 37 | static char *basetypes[] = { |
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| 38 | "ExceptionBlock", |
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| 39 | "SystemParameterBlock", |
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| 40 | "FreeContiguous", |
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| 41 | "FreeMemory", |
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| 42 | "BadMemory", |
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| 43 | "LoadedProgram", |
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| 44 | "FirmwareTemporary", |
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| 45 | "FirmwarePermanent" |
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| 46 | }; |
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| 47 | |||
| 48 | static arc_sbp *sbp = (arc_sbp *)PA2KA(0x1000); |
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| 49 | static arc_func_vector_t *arc_entry; |
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| 50 | |||
| 51 | static void _arc_putchar(char ch); |
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| 52 | |||
| 53 | /** Initialize ARC structure |
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| 54 | * |
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| 55 | * @return 0 - ARC OK, -1 - ARC does not exist |
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| 56 | */ |
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| 57 | int init_arc(void) |
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| 58 | { |
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| 59 | if (sbp->signature != ARC_MAGIC) { |
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| 60 | sbp = NULL; |
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| 61 | return -1; |
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| 62 | } |
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| 63 | arc_entry = sbp->firmwarevector; |
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| 64 | |||
| 65 | arc_putchar('A'); |
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| 66 | arc_putchar('R'); |
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| 67 | arc_putchar('C'); |
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| 68 | arc_putchar('\n'); |
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| 69 | } |
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| 70 | |||
| 71 | /** Return true if ARC is available */ |
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| 72 | int arc_enabled(void) |
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| 73 | { |
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| 74 | return sbp != NULL; |
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| 75 | } |
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| 76 | |||
| 77 | void arc_print_memory_map(void) |
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| 78 | { |
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| 79 | arc_memdescriptor_t *desc; |
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| 80 | |||
| 81 | if (!sbp) { |
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| 82 | printf("ARC not enabled.\n"); |
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| 83 | return; |
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| 84 | } |
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| 85 | |||
| 86 | printf("Memory map:\n"); |
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| 87 | |||
| 88 | desc = arc_entry->getmemorydescriptor(NULL); |
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| 89 | while (desc) { |
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| 90 | printf("%s: %d (size: %dKB)\n",basetypes[desc->type], |
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| 91 | desc->basepage * 4096, |
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| 92 | desc->basecount*4); |
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| 93 | desc = arc_entry->getmemorydescriptor(desc); |
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| 94 | } |
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| 95 | } |
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| 96 | |||
| 97 | /** Print charactor to console */ |
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| 98 | void arc_putchar(char ch) |
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| 99 | { |
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| 100 | __u32 cnt; |
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| 101 | pri_t pri; |
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| 102 | |||
| 103 | /* TODO: Should be spinlock? */ |
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| 104 | pri = cpu_priority_high(); |
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| 105 | arc_entry->write(1, &ch, 1, &cnt); |
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| 106 | cpu_priority_restore(pri); |
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| 107 | |||
| 108 | } |