Rev 1063 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1063 | tullio | 1 | |
| 2 | /* |
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| 3 | * This program is free software; you can redistribute it and/or modify |
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| 4 | * it under the terms of the GNU General Public License as published by |
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| 5 | * the Free Software Foundation; either version 2 of the License, or |
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| 6 | * (at your option) any later version. |
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| 7 | * |
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| 8 | * This program is distributed in the hope that it will be useful, |
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| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 11 | * GNU General Public License for more details. |
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| 12 | * |
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| 13 | * You should have received a copy of the GNU General Public License |
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| 14 | * along with this program; if not, write to the Free Software |
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| 15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 16 | * |
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| 17 | */ |
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| 18 | |||
| 2 | pj | 19 | #include <ll/i386/hw-data.h> |
| 20 | #include <ll/i386/mem.h> |
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| 21 | #include <ll/i386/cons.h> |
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| 22 | /* |
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| 23 | #include <ll/i386/x-dos.h> |
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| 24 | #include <ll/i386/x-dosmem.h> |
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| 25 | */ |
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| 26 | #include <ll/sys/ll/ll-func.h> |
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| 27 | |||
| 28 | #include "trident.h" |
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| 29 | #include "chips.h" |
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| 30 | |||
| 31 | enum {TRIDENT_8800, TRIDENT_8900, TRIDENT_9000, TRIDENT_9200, TRIDENT_9420, |
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| 32 | TRIDENT_9680, |
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| 33 | TRIDENT_UNKNOWN |
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| 34 | }; |
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| 35 | |||
| 36 | static const char *trident_chipname[] = |
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| 37 | {"8800", "8900", "9000", "9200", "9420", "9680", |
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| 38 | "Unknown Trident chip"}; |
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| 39 | |||
| 40 | int trident_chiptype; |
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| 41 | int trident_flags; |
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| 42 | int trident_memory; |
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| 43 | |||
| 44 | static int trident_init(int par1, int par2) |
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| 45 | { |
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| 46 | BYTE value; |
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| 47 | |||
| 48 | outp(0x3D4, 0x1f); |
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| 49 | /* this should detect up to 2M memory now */ |
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| 50 | trident_memory = (inp(0x3D5) & 0x07) * 256 + 256; |
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| 51 | |||
| 52 | outp(0x3C4, 0x0B); |
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| 53 | outp(0x3C5, 0); |
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| 54 | |||
| 55 | value = inp(0x3C5); |
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| 56 | |||
| 57 | switch(value) { |
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| 58 | case 0x03: |
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| 59 | case 0x04: |
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| 60 | trident_chiptype = TRIDENT_8900; |
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| 61 | break; |
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| 62 | case 0x13: |
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| 63 | case 0x23: |
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| 64 | case 0x93: |
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| 65 | trident_chiptype = TRIDENT_9000; |
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| 66 | break; |
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| 67 | case 0x53: |
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| 68 | case 0x83: |
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| 69 | trident_chiptype = TRIDENT_9200; |
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| 70 | break; |
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| 71 | case 0x73: |
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| 72 | trident_chiptype = TRIDENT_9420; |
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| 73 | break; |
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| 74 | case 0xD3: |
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| 75 | trident_chiptype = TRIDENT_9680; |
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| 76 | default: |
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| 77 | trident_chiptype = TRIDENT_UNKNOWN; |
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| 78 | /* trident_chiptype = TRIDENT_8800; */ |
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| 79 | /* trident_chiptype = TRIDENT_9440; */ |
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| 80 | break; |
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| 81 | } |
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| 82 | return 1; |
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| 83 | } |
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| 84 | |||
| 85 | |||
| 86 | int trident_test(void) |
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| 87 | { |
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| 88 | BYTE old_value, old_misc_value, value, misc_value, power_up_value; |
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| 89 | int res; |
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| 90 | |||
| 91 | res = CHIP_NOT_FOUND; |
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| 92 | |||
| 93 | outp(0x3CE, 0x06); |
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| 94 | old_misc_value = inp(0x3CF); |
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| 95 | misc_value = old_misc_value & 0x03; |
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| 96 | misc_value |= 0x04; |
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| 97 | outp(0x3CF, misc_value); |
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| 98 | |||
| 99 | outp(0x3C4, 0x0E); |
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| 100 | old_value = inp(0x3C5); |
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| 101 | |||
| 102 | outp(0x3C5, 0x00); |
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| 103 | |||
| 104 | value = inp(0x3C5) & 0x0F; |
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| 105 | |||
| 106 | outp(0x3C5, old_value); |
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| 107 | |||
| 108 | outp(0x3CE, 0x06); |
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| 109 | outp(0x3CF, old_misc_value); |
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| 110 | |||
| 111 | if (value >= 0x02) { |
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| 112 | res = CHIP_FOUND; |
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| 113 | }else { |
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| 114 | outp(0x3C4, 0x0F); |
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| 115 | outp(0x3C5, 0x00); |
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| 116 | |||
| 117 | power_up_value = inp(0x3C5); |
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| 118 | |||
| 119 | if (power_up_value != 0) { |
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| 120 | res = CHIP_FOUND; |
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| 121 | } |
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| 122 | } |
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| 123 | if (res == CHIP_FOUND) { |
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| 124 | trident_init(0,0); |
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| 125 | if (trident_chiptype != TRIDENT_UNKNOWN) { |
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| 126 | return 1; |
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| 127 | } else { |
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| 128 | return -1; |
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| 129 | } |
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| 130 | } |
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| 131 | return res; |
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| 132 | } |
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| 133 | |||
| 134 | void trident_showinfo() |
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| 135 | { |
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| 136 | cprintf("\t Using Trident driver (%s, %dK).\n", |
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| 137 | trident_chipname[trident_chiptype], trident_memory); |
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| 138 | } |
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| 139 | |||
| 140 | void trident_setpage(int page) |
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| 141 | { |
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| 142 | WORD app; |
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| 143 | BYTE bb; |
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| 144 | |||
| 145 | bb = page; |
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| 146 | if ((bb & 0x02) == 0x02) { |
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| 147 | bb = (bb & 0xFD); |
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| 148 | } else { |
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| 149 | bb = (bb | 0x02); |
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| 150 | } |
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| 151 | |||
| 152 | /* outp(0x03C4, 0x0b); |
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| 153 | outp(0x03C5, inp(0x03C5)); |
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| 154 | inp(0x3C5); */ |
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| 155 | |||
| 156 | /* bb = page ^ 0x02;*/ |
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| 157 | |||
| 158 | app = 0x0E || (bb << 8); |
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| 159 | |||
| 160 | outp(0x3C4, 0x0E); |
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| 161 | outp(0x3C5, bb); |
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| 162 | /* outw(0x3C4, app);*/ |
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| 163 | |||
| 164 | /* |
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| 165 | outp(0x03C4, 0x0b); |
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| 166 | outp(0x03C5, inp(0x03C5)); |
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| 167 | inp(0x3C5); |
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| 168 | |||
| 169 | outp(0x03C4, 0x0e); |
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| 170 | outp(0x03C5, page ^ 0x02); |
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| 171 | */ |
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| 172 | } |
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| 173 | |||
| 174 | DWORD trident_getmem(void) |
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| 175 | { |
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| 176 | return trident_memory * 1024; |
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| 177 | } |