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| Rev | Author | Line No. | Line |
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| 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 | |||
| 344 | palkovsky | 48 | static char *ctypes[] = { |
| 49 | "ARC_type", |
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| 50 | "CPU_type", |
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| 51 | "FPU_type", |
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| 52 | "PrimaryICache", |
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| 53 | "PrimaryDCache", |
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| 54 | "SecondaryICache", |
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| 55 | "SecondaryDCache", |
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| 56 | "SecondaryCache", |
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| 57 | "Memory", |
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| 58 | "EISAAdapter", |
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| 59 | "TCAdapter", |
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| 60 | "SCSIAdapter", |
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| 61 | "DTIAdapter", |
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| 62 | "MultiFunctionAdapter", |
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| 63 | "DiskController", |
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| 64 | "TapeController", |
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| 65 | "CDROMController", |
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| 66 | "WORMController", |
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| 67 | "SerialController", |
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| 68 | "NetworkController", |
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| 69 | "DisplayController", |
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| 70 | "ParallelController", |
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| 71 | "PointerController", |
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| 72 | "KeyboardController", |
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| 73 | "AudioController", |
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| 74 | "OtherController", |
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| 75 | "DiskPeripheral", |
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| 76 | "FloppyDiskPeripheral", |
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| 77 | "TapePeripheral", |
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| 78 | "ModemPeripheral", |
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| 79 | "MonitorPeripheral", |
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| 80 | "PrinterPeripheral", |
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| 81 | "PointerPeripheral", |
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| 82 | "KeyboardPeripheral", |
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| 83 | "TerminalPeripheral", |
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| 84 | "OtherPeripheral", |
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| 85 | "LinePeripheral", |
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| 86 | "NetworkPeripheral" |
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| 87 | "OtherPeripheral", |
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| 88 | "XTalkAdapter", |
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| 89 | "PCIAdapter", |
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| 90 | "GIOAdapter", |
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| 91 | "TPUAdapter", |
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| 92 | "Anonymous" |
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| 93 | }; |
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| 94 | |||
| 332 | palkovsky | 95 | static arc_sbp *sbp = (arc_sbp *)PA2KA(0x1000); |
| 96 | static arc_func_vector_t *arc_entry; |
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| 97 | |||
| 98 | static void _arc_putchar(char ch); |
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| 99 | |||
| 100 | /** Initialize ARC structure |
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| 101 | * |
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| 102 | * @return 0 - ARC OK, -1 - ARC does not exist |
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| 103 | */ |
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| 104 | int init_arc(void) |
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| 105 | { |
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| 106 | if (sbp->signature != ARC_MAGIC) { |
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| 107 | sbp = NULL; |
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| 108 | return -1; |
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| 109 | } |
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| 110 | arc_entry = sbp->firmwarevector; |
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| 111 | |||
| 112 | arc_putchar('A'); |
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| 113 | arc_putchar('R'); |
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| 114 | arc_putchar('C'); |
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| 115 | arc_putchar('\n'); |
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| 116 | } |
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| 117 | |||
| 118 | /** Return true if ARC is available */ |
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| 119 | int arc_enabled(void) |
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| 120 | { |
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| 121 | return sbp != NULL; |
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| 122 | } |
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| 123 | |||
| 344 | palkovsky | 124 | static void arc_print_component(arc_component *c) |
| 125 | { |
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| 126 | int i; |
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| 127 | |||
| 128 | printf("%s: ",ctypes[c->type]); |
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| 129 | for (i=0;i < c->identifier_len;i++) |
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| 130 | putchar(c->identifier[i]); |
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| 131 | putchar('\n'); |
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| 132 | } |
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| 133 | |||
| 134 | void arc_print_devices(void) |
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| 135 | { |
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| 136 | arc_component *c,*next; |
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| 137 | |||
| 138 | if (!arc_enabled()) |
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| 139 | return; |
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| 140 | |||
| 141 | c = arc_entry->getchild(NULL); |
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| 142 | while (c) { |
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| 143 | arc_print_component(c); |
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| 144 | next = arc_entry->getchild(c); |
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| 145 | while (!next) { |
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| 146 | next = arc_entry->getpeer(c); |
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| 147 | if (!next) |
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| 148 | c = arc_entry->getparent(c); |
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| 149 | if (!c) |
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| 150 | return; |
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| 151 | } |
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| 152 | c = next; |
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| 153 | } |
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| 154 | } |
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| 155 | |||
| 332 | palkovsky | 156 | void arc_print_memory_map(void) |
| 157 | { |
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| 158 | arc_memdescriptor_t *desc; |
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| 159 | |||
| 364 | palkovsky | 160 | if (!arc_enabled()) |
| 332 | palkovsky | 161 | return; |
| 162 | |||
| 163 | printf("Memory map:\n"); |
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| 164 | |||
| 165 | desc = arc_entry->getmemorydescriptor(NULL); |
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| 166 | while (desc) { |
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| 167 | printf("%s: %d (size: %dKB)\n",basetypes[desc->type], |
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| 168 | desc->basepage * 4096, |
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| 169 | desc->basecount*4); |
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| 170 | desc = arc_entry->getmemorydescriptor(desc); |
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| 171 | } |
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| 172 | } |
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| 173 | |||
| 174 | /** Print charactor to console */ |
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| 175 | void arc_putchar(char ch) |
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| 176 | { |
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| 177 | __u32 cnt; |
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| 413 | jermar | 178 | ipl_t ipl; |
| 332 | palkovsky | 179 | |
| 180 | /* TODO: Should be spinlock? */ |
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| 413 | jermar | 181 | ipl = interrupts_disable(); |
| 332 | palkovsky | 182 | arc_entry->write(1, &ch, 1, &cnt); |
| 413 | jermar | 183 | interrupts_restore(ipl); |
| 332 | palkovsky | 184 | |
| 185 | } |
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| 567 | palkovsky | 186 | |
| 187 | /** Try to get character, return character or -1 if not available */ |
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| 188 | int arc_getchar(void) |
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| 189 | { |
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| 190 | char ch; |
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| 191 | __u32 count; |
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| 192 | long result; |
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| 193 | |||
| 194 | if (arc_entry->getreadstatus(0)) |
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| 195 | return -1; |
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| 196 | result = arc_entry->read(0, &ch, 1, &count); |
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| 197 | if (result || count!=1) { |
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| 198 | cpu_halt(); |
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| 199 | return -1; |
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| 200 | } |
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| 201 | if (ch == '\r') |
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| 202 | return '\n'; |
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| 203 | return ch; |
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| 204 | } |