| 1 | ; Project name : XTIDE Universal BIOS
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| 2 | ; Description : Functions for printing drive configuration
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| 3 | ; information on Boot Menu.
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| 4 |
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| 5 | ; Section containing code
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| 6 | SECTION .text
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| 7 |
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| 8 | ;--------------------------------------------------------------------
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| 9 | ; Prints Hard Disk configuration for drive handled by our BIOS.
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| 10 | ; Cursor is set to configuration header string position.
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| 11 | ;
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| 12 | ; BootMenuPrintCfg_ForOurDrive
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| 13 | ; Parameters:
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| 14 | ; DS:DI: Ptr to DPT
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| 15 | ; Returns:
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| 16 | ; Nothing
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| 17 | ; Corrupts registers:
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| 18 | ; AX, BX, CX, DX, SI, DI, ES
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| 19 | ;--------------------------------------------------------------------
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| 20 | ALIGN JUMP_ALIGN
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| 21 | BootMenuPrintCfg_ForOurDrive:
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| 22 | call BootMenuPrintCfg_HeaderAndChangeLine
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| 23 | call BootMenuPrintCfg_GetPointers
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| 24 | call BootMenuPrintCfg_PushAndFormatCfgString
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| 25 | jmp BootMenuPrint_Newline
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| 26 |
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| 27 |
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| 28 | ;--------------------------------------------------------------------
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| 29 | ; Prints configuration header and changes for printing values.
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| 30 | ;
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| 31 | ; BootMenuPrintCfg_HeaderAndChangeLine
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| 32 | ; Parameters:
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| 33 | ; Nothing
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| 34 | ; Returns:
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| 35 | ; Nothing
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| 36 | ; Corrupts registers:
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| 37 | ; AX, SI, DI
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| 38 | ;--------------------------------------------------------------------
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| 39 | ALIGN JUMP_ALIGN
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| 40 | BootMenuPrintCfg_HeaderAndChangeLine:
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| 41 | mov si, g_szCfgHeader
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| 42 | call PrintNullTerminatedStringFromCSSIandSetCF
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| 43 | jmp BootMenuPrint_Newline
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| 44 |
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| 45 |
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| 46 | ;--------------------------------------------------------------------
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| 47 | ; Return all necessary pointers to drive information structs.
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| 48 | ;
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| 49 | ; BootMenuPrintCfg_GetPointers
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| 50 | ; Parameters:
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| 51 | ; DS:DI: Ptr to DPT
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| 52 | ; Returns:
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| 53 | ; DS:DI: Ptr to DPT
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| 54 | ; ES:BX: Ptr to BOOTNFO
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| 55 | ; CS:SI: Ptr to IDEVARS
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| 56 | ; Corrupts registers:
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| 57 | ; AX, DL
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| 58 | ;--------------------------------------------------------------------
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| 59 | ALIGN JUMP_ALIGN
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| 60 | BootMenuPrintCfg_GetPointers:
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| 61 | mov dl, [di+DPT.bDrvNum] ; Load Drive number to DL
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| 62 | call BootInfo_GetOffsetToBX ; ES:BX now points...
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| 63 | LOAD_BDA_SEGMENT_TO es, ax ; ...to BOOTNFO
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| 64 | mov al, [di+DPT.bIdeOff]
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| 65 | xchg si, ax ; CS:SI now points to IDEVARS
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| 66 | ret
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| 67 |
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| 68 |
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| 69 | ;--------------------------------------------------------------------
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| 70 | ; Pushes all string formatting parameters and prints
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| 71 | ; formatted configuration string.
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| 72 | ;
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| 73 | ; BootMenuPrintCfg_PushAndFormatCfgString
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| 74 | ; Parameters:
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| 75 | ; DS:DI: Ptr to DPT
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| 76 | ; ES:BX: Ptr to BOOTNFO
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| 77 | ; CS:SI: Ptr to IDEVARS
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| 78 | ; Returns:
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| 79 | ; Nothing
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| 80 | ; Corrupts registers:
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| 81 | ; AX, DX, SI, DI
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| 82 | ;--------------------------------------------------------------------
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| 83 | ALIGN JUMP_ALIGN
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| 84 | BootMenuPrintCfg_PushAndFormatCfgString:
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| 85 | push bp
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| 86 |
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| 87 | mov bp, sp
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| 88 | ; Fall to first push below
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| 89 |
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| 90 | ;--------------------------------------------------------------------
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| 91 | ; PushAddressingMode
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| 92 | ; Parameters:
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| 93 | ; DS:DI: Ptr to DPT
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| 94 | ; ES:BX: Ptr to BOOTNFO
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| 95 | ; CS:SI: Ptr to IDEVARS
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| 96 | ; Returns:
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| 97 | ; Nothing (jumps to next push below)
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| 98 | ; Corrupts registers:
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| 99 | ; AX, DX
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| 100 | ;--------------------------------------------------------------------
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| 101 | PushAddressingMode:
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| 102 | mov dx, bx ; Backup BX to DX
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| 103 | mov bx, MASK_DPT_ADDR ; Load addressing mode mask
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| 104 | and bl, [di+DPT.bFlags] ; Addressing mode now in BX
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| 105 | push WORD [cs:bx+.rgszAddressingModeString]
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| 106 | mov bx, dx
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| 107 | jmp SHORT .NextPush
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| 108 | ALIGN WORD_ALIGN
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| 109 | .rgszAddressingModeString:
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| 110 | dw g_szLCHS
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| 111 | dw g_szPCHS
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| 112 | dw g_szLBA28
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| 113 | dw g_szLBA48
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| 114 | ALIGN JUMP_ALIGN
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| 115 | .NextPush:
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| 116 |
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| 117 | ;--------------------------------------------------------------------
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| 118 | ; PushBlockMode
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| 119 | ; Parameters:
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| 120 | ; DS:DI: Ptr to DPT
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| 121 | ; ES:BX: Ptr to BOOTNFO
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| 122 | ; CS:SI: Ptr to IDEVARS
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| 123 | ; Returns:
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| 124 | ; Nothing (falls to next push below)
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| 125 | ; Corrupts registers:
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| 126 | ; AX
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| 127 | ;--------------------------------------------------------------------
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| 128 | PushBlockMode:
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| 129 | eMOVZX ax, BYTE [di+DPT.bSetBlock]
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| 130 | push ax
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| 131 |
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| 132 | ;--------------------------------------------------------------------
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| 133 | ; PushBusType
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| 134 | ; Parameters:
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| 135 | ; DS:DI: Ptr to DPT
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| 136 | ; ES:BX: Ptr to BOOTNFO
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| 137 | ; CS:SI: Ptr to IDEVARS
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| 138 | ; Returns:
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| 139 | ; Nothing (jumps to next push below)
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| 140 | ; Corrupts registers:
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| 141 | ; AX, DX
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| 142 | ;--------------------------------------------------------------------
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| 143 | PushBusType:
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| 144 | xchg ax, bx ; Store BX to AX
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| 145 | eMOVZX bx, BYTE [cs:si+IDEVARS.bBusType]
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| 146 | mov bx, [cs:bx+.rgwBusTypeValues] ; Char to BL, Int to BH
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| 147 | eMOVZX dx, bh
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| 148 | push bx ; Push character
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| 149 | push dx ; Push 8, 16 or 32
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| 150 | xchg bx, ax ; Restore BX
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| 151 | jmp SHORT .NextPush
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| 152 | ALIGN WORD_ALIGN
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| 153 | .rgwBusTypeValues:
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| 154 | db 'D', 8 ; BUS_TYPE_8_DUAL
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| 155 | db ' ', 16 ; BUS_TYPE_16
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| 156 | db ' ', 32 ; BUS_TYPE_32
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| 157 | db 'S', 8 ; BUS_TYPE_8_SINGLE
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| 158 | ALIGN JUMP_ALIGN
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| 159 | .NextPush:
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| 160 |
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| 161 | ;--------------------------------------------------------------------
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| 162 | ; PushIRQ
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| 163 | ; Parameters:
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| 164 | ; DS:DI: Ptr to DPT
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| 165 | ; ES:BX: Ptr to BOOTNFO
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| 166 | ; CS:SI: Ptr to IDEVARS
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| 167 | ; Returns:
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| 168 | ; Nothing (falls to next push below)
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| 169 | ; Corrupts registers:
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| 170 | ; AX, DX
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| 171 | ;--------------------------------------------------------------------
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| 172 | PushIRQ:
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| 173 | mov dl, ' ' ; Load space to DL
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| 174 | mov al, [cs:si+IDEVARS.bIRQ]
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| 175 | test al, al ; Interrupts disabled?
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| 176 | jz SHORT .PushIrqDisabled
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| 177 | add al, '0' ; Digit to ASCII
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| 178 | cmp al, '9' ; Only one digit needed?
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| 179 | jbe SHORT .PushCharacters
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| 180 |
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| 181 | ; Two digits needed
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| 182 | sub al, 10 ; Limit to single digit ASCII
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| 183 | mov dl, '1' ; Load '1 to DX
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| 184 | jmp SHORT .PushCharacters
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| 185 | ALIGN JUMP_ALIGN
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| 186 | .PushIrqDisabled:
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| 187 | mov al, '-' ; Load line to AL
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| 188 | xchg ax, dx ; Space to AL, line to DL
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| 189 | ALIGN JUMP_ALIGN
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| 190 | .PushCharacters:
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| 191 | push dx
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| 192 | push ax
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| 193 |
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| 194 | ;--------------------------------------------------------------------
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| 195 | ; PushResetStatus
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| 196 | ; Parameters:
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| 197 | ; DS:DI: Ptr to DPT
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| 198 | ; ES:BX: Ptr to BOOTNFO
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| 199 | ; CS:SI: Ptr to IDEVARS
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| 200 | ; Returns:
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| 201 | ; Nothing (falls to next push below)
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| 202 | ; Corrupts registers:
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| 203 | ; AX
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| 204 | ;--------------------------------------------------------------------
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| 205 | PushResetStatus:
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| 206 | eMOVZX ax, BYTE [di+DPT.bReset]
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| 207 | push ax
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| 208 |
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| 209 | ;--------------------------------------------------------------------
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| 210 | ; Prints formatted configuration string from parameters pushed to stack.
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| 211 | ;
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| 212 | ; BootMenuPrintCfg_ValuesFromStack
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| 213 | ; Parameters:
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| 214 | ; Stack: All formatting parameters
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| 215 | ; Returns:
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| 216 | ; Nothing
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| 217 | ; Corrupts registers:
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| 218 | ; AX, SI, DI
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| 219 | ;--------------------------------------------------------------------
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| 220 | BootMenuPrintCfg_ValuesFromStack:
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| 221 | mov si, g_szCfgFormat
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| 222 | jmp PrintNullTerminatedStringFromCSSIandSetCF
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