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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | #include <ll/i386/hw-data.h> |
| 2 | #include <ll/i386/mem.h> |
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| 3 | #include <ll/i386/cons.h> |
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| 4 | /* |
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| 5 | #include <ll/i386/x-dos.h> |
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| 6 | #include <ll/i386/x-dosmem.h> |
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| 7 | */ |
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| 8 | #include <ll/sys/ll/ll-func.h> |
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| 9 | |||
| 10 | #include "trident.h" |
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| 11 | #include "chips.h" |
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| 12 | |||
| 13 | enum {TRIDENT_8800, TRIDENT_8900, TRIDENT_9000, TRIDENT_9200, TRIDENT_9420, |
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| 14 | TRIDENT_9680, |
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| 15 | TRIDENT_UNKNOWN |
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| 16 | }; |
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| 17 | |||
| 18 | static const char *trident_chipname[] = |
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| 19 | {"8800", "8900", "9000", "9200", "9420", "9680", |
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| 20 | "Unknown Trident chip"}; |
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| 21 | |||
| 22 | int trident_chiptype; |
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| 23 | int trident_flags; |
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| 24 | int trident_memory; |
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| 25 | |||
| 26 | static int trident_init(int par1, int par2) |
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| 27 | { |
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| 28 | BYTE value; |
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| 29 | |||
| 30 | outp(0x3D4, 0x1f); |
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| 31 | /* this should detect up to 2M memory now */ |
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| 32 | trident_memory = (inp(0x3D5) & 0x07) * 256 + 256; |
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| 33 | |||
| 34 | outp(0x3C4, 0x0B); |
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| 35 | outp(0x3C5, 0); |
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| 36 | |||
| 37 | value = inp(0x3C5); |
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| 38 | |||
| 39 | switch(value) { |
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| 40 | case 0x03: |
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| 41 | case 0x04: |
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| 42 | trident_chiptype = TRIDENT_8900; |
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| 43 | break; |
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| 44 | case 0x13: |
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| 45 | case 0x23: |
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| 46 | case 0x93: |
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| 47 | trident_chiptype = TRIDENT_9000; |
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| 48 | break; |
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| 49 | case 0x53: |
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| 50 | case 0x83: |
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| 51 | trident_chiptype = TRIDENT_9200; |
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| 52 | break; |
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| 53 | case 0x73: |
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| 54 | trident_chiptype = TRIDENT_9420; |
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| 55 | break; |
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| 56 | case 0xD3: |
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| 57 | trident_chiptype = TRIDENT_9680; |
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| 58 | default: |
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| 59 | trident_chiptype = TRIDENT_UNKNOWN; |
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| 60 | /* trident_chiptype = TRIDENT_8800; */ |
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| 61 | /* trident_chiptype = TRIDENT_9440; */ |
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| 62 | break; |
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| 63 | } |
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| 64 | return 1; |
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| 65 | } |
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| 66 | |||
| 67 | |||
| 68 | int trident_test(void) |
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| 69 | { |
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| 70 | BYTE old_value, old_misc_value, value, misc_value, power_up_value; |
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| 71 | int res; |
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| 72 | |||
| 73 | res = CHIP_NOT_FOUND; |
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| 74 | |||
| 75 | outp(0x3CE, 0x06); |
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| 76 | old_misc_value = inp(0x3CF); |
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| 77 | misc_value = old_misc_value & 0x03; |
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| 78 | misc_value |= 0x04; |
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| 79 | outp(0x3CF, misc_value); |
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| 80 | |||
| 81 | outp(0x3C4, 0x0E); |
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| 82 | old_value = inp(0x3C5); |
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| 83 | |||
| 84 | outp(0x3C5, 0x00); |
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| 85 | |||
| 86 | value = inp(0x3C5) & 0x0F; |
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| 87 | |||
| 88 | outp(0x3C5, old_value); |
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| 89 | |||
| 90 | outp(0x3CE, 0x06); |
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| 91 | outp(0x3CF, old_misc_value); |
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| 92 | |||
| 93 | if (value >= 0x02) { |
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| 94 | res = CHIP_FOUND; |
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| 95 | }else { |
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| 96 | outp(0x3C4, 0x0F); |
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| 97 | outp(0x3C5, 0x00); |
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| 98 | |||
| 99 | power_up_value = inp(0x3C5); |
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| 100 | |||
| 101 | if (power_up_value != 0) { |
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| 102 | res = CHIP_FOUND; |
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| 103 | } |
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| 104 | } |
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| 105 | if (res == CHIP_FOUND) { |
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| 106 | trident_init(0,0); |
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| 107 | if (trident_chiptype != TRIDENT_UNKNOWN) { |
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| 108 | return 1; |
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| 109 | } else { |
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| 110 | return -1; |
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| 111 | } |
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| 112 | } |
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| 113 | return res; |
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| 114 | } |
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| 115 | |||
| 116 | void trident_showinfo() |
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| 117 | { |
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| 118 | cprintf("\t Using Trident driver (%s, %dK).\n", |
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| 119 | trident_chipname[trident_chiptype], trident_memory); |
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| 120 | } |
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| 121 | |||
| 122 | void trident_setpage(int page) |
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| 123 | { |
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| 124 | WORD app; |
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| 125 | BYTE bb; |
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| 126 | |||
| 127 | bb = page; |
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| 128 | if ((bb & 0x02) == 0x02) { |
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| 129 | bb = (bb & 0xFD); |
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| 130 | } else { |
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| 131 | bb = (bb | 0x02); |
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| 132 | } |
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| 133 | |||
| 134 | /* outp(0x03C4, 0x0b); |
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| 135 | outp(0x03C5, inp(0x03C5)); |
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| 136 | inp(0x3C5); */ |
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| 137 | |||
| 138 | /* bb = page ^ 0x02;*/ |
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| 139 | |||
| 140 | app = 0x0E || (bb << 8); |
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| 141 | |||
| 142 | outp(0x3C4, 0x0E); |
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| 143 | outp(0x3C5, bb); |
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| 144 | /* outw(0x3C4, app);*/ |
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| 145 | |||
| 146 | /* |
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| 147 | outp(0x03C4, 0x0b); |
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| 148 | outp(0x03C5, inp(0x03C5)); |
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| 149 | inp(0x3C5); |
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| 150 | |||
| 151 | outp(0x03C4, 0x0e); |
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| 152 | outp(0x03C5, page ^ 0x02); |
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| 153 | */ |
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| 154 | } |
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| 155 | |||
| 156 | DWORD trident_getmem(void) |
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| 157 | { |
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| 158 | return trident_memory * 1024; |
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| 159 | } |