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Rev | Author | Line No. | Line |
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1638 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2007-2008. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
8 | IRQ_RESERVE = 24 ; 16 or 24 |
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9 | |||
10 | iglobal |
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2010 | serge | 11 | IRQ_COUNT dd 24 |
1638 | serge | 12 | endg |
13 | |||
14 | uglobal |
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15 | APIC: dd 0 |
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16 | LAPIC_BASE: dd 0 |
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17 | IOAPIC_base: dd 0 |
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18 | endg |
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19 | |||
20 | APIC_ID equ 0x20 |
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21 | APIC_TPR equ 0x80 |
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22 | APIC_EOI equ 0xb0 |
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23 | APIC_LDR equ 0xd0 |
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24 | APIC_DFR equ 0xe0 |
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25 | APIC_SVR equ 0xf0 |
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26 | APIC_ISR equ 0x100 |
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27 | APIC_ESR equ 0x280 |
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28 | APIC_ICRL equ 0x300 |
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29 | APIC_ICRH equ 0x310 |
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30 | APIC_LVT_LINT0 equ 0x350 |
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31 | APIC_LVT_LINT1 equ 0x360 |
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32 | APIC_LVT_err equ 0x370 |
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33 | |||
34 | ; APIC timer |
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35 | APIC_LVT_timer equ 0x320 |
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36 | APIC_timer_div equ 0x3e0 |
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37 | APIC_timer_init equ 0x380 |
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38 | APIC_timer_cur equ 0x390 |
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39 | ; IOAPIC |
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40 | IOAPIC_ID equ 0x0 |
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41 | IOAPIC_VER equ 0x1 |
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42 | IOAPIC_ARB equ 0x2 |
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43 | IOAPIC_REDTBL equ 0x10 |
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44 | |||
45 | APIC_init: |
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46 | mov dword[APIC], 0 |
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47 | ; jmp .no_apic ; NO APIC |
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2010 | serge | 48 | ; bt [cpu_caps], CAPS_APIC |
49 | ; jnc .no_apic |
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1638 | serge | 50 | ; Check for MP table |
51 | ;..... |
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2010 | serge | 52 | |
1638 | serge | 53 | call IRQ_mask_all |
2010 | serge | 54 | |
1638 | serge | 55 | ; IOAPIC init |
56 | ; 0xfec00000 - may be relocated, see chip reference... & MP table |
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57 | stdcall map_io_mem, 0xfec00000, 0x20, PG_SW |
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58 | mov [IOAPIC_base], eax |
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2010 | serge | 59 | |
1638 | serge | 60 | mov eax, IOAPIC_VER |
61 | call IOAPIC_read |
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62 | shr eax, 16 |
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63 | inc al |
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64 | movzx eax, al |
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65 | cmp al, IRQ_RESERVE |
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66 | jbe @f |
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67 | mov al, IRQ_RESERVE |
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68 | @@: mov [IRQ_COUNT], eax |
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69 | |||
70 | ; Reroute IOAPIC & mask all interrupts |
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71 | xor ecx, ecx |
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72 | mov eax, IOAPIC_REDTBL |
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73 | @@: mov ebx, eax |
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74 | call IOAPIC_read |
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75 | mov ah, 0x09 ; Delivery Mode: Lowest Priority, Destination Mode: Logical |
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76 | mov al, cl |
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77 | add al, 0x20 ; vector |
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78 | or eax, 0x10000 ; Mask Interrupt |
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79 | cmp ecx, 16 |
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80 | jb .set |
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81 | or eax, 0xa000 ;<<< level-triggered active-low for IRQ16+ |
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82 | .set: |
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83 | xchg eax, ebx |
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84 | call IOAPIC_write |
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85 | inc eax |
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86 | mov ebx, eax |
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87 | call IOAPIC_read |
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88 | or eax, 0xff000000 ; Destination Field |
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89 | xchg eax, ebx |
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90 | call IOAPIC_write |
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91 | inc eax |
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92 | inc ecx |
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93 | cmp ecx, [IRQ_COUNT] |
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94 | jb @b |
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95 | |||
96 | call LAPIC_init |
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2010 | serge | 97 | |
1638 | serge | 98 | mov dword[APIC], 0xffffffff |
2010 | serge | 99 | |
100 | mov al, 0x70 |
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101 | out 0x22, al |
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102 | mov al, 1 |
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103 | out 0x23, al |
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104 | |||
1638 | serge | 105 | ; mov dword[irq_type_to_set], IRQ_TYPE_APIC |
2049 | serge | 106 | |
107 | ;init handlers table |
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108 | |||
109 | mov ecx, IRQ_RESERVE |
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110 | mov edi, irqh_tab |
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111 | @@: |
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112 | mov eax, edi |
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113 | stosd |
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114 | stosd |
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115 | loop @B |
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116 | |||
117 | mov ecx, 48 |
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118 | mov eax, irqh_array+IRQH.sizeof |
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119 | mov [next_irqh], irqh_array |
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120 | |||
121 | @@: |
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122 | mov [eax-IRQH.sizeof], eax |
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123 | add eax, IRQH.sizeof |
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124 | loop @B |
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125 | |||
126 | mov [eax-IRQH.sizeof], dword 0 |
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127 | |||
1638 | serge | 128 | .no_apic: |
129 | ret |
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2010 | serge | 130 | |
1638 | serge | 131 | ;=========================================================== |
132 | align 4 |
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133 | LAPIC_init: |
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134 | ; Check MSR support |
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135 | ;.... |
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136 | ; Get LAPIC base address |
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137 | mov ecx, 0x1b |
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138 | rdmsr ; it may be replaced to |
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139 | and ax, 0xf000 ; mov eax, 0xfee00000 |
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2010 | serge | 140 | |
1638 | serge | 141 | stdcall map_io_mem, eax, 0x1000, PG_SW |
142 | mov [LAPIC_BASE], eax |
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143 | mov esi, eax |
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2010 | serge | 144 | |
1638 | serge | 145 | ; Program Destination Format Register for Flat mode. |
146 | mov eax, [esi + APIC_DFR] |
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147 | or eax, 0xf0000000 |
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148 | mov [esi + APIC_DFR], eax |
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2010 | serge | 149 | |
150 | |||
1638 | serge | 151 | ; Program Logical Destination Register. |
152 | mov eax, [esi + APIC_LDR] |
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153 | ;and eax, 0xff000000 |
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154 | and eax, 0x00ffffff |
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155 | or eax, 0x01000000 ;!!!!!!!!!!!! |
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156 | mov [esi + APIC_LDR], eax |
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2010 | serge | 157 | |
1638 | serge | 158 | ; Task Priority Register initialization. |
159 | mov eax, [esi + APIC_TPR] |
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160 | and eax, 0xffffff00 |
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161 | mov [esi + APIC_TPR], eax |
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162 | |||
163 | ; Flush the queue |
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164 | mov edx, 0 |
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165 | .nxt2: mov ecx, 32 |
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166 | mov eax, [esi + APIC_ISR + edx] |
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167 | .nxt: shr eax, 1 |
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168 | jnc @f |
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169 | mov dword [esi + APIC_EOI], 0 ; EOI |
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170 | @@: loop .nxt |
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171 | add edx, 0x10 |
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172 | cmp edx, 0x170 |
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173 | jbe .nxt2 |
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174 | |||
175 | ; Spurious-Interrupt Vector Register initialization. |
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176 | mov eax, [esi + APIC_SVR] |
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177 | or eax, 0x1ff |
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178 | and eax, 0xfffffdff |
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179 | mov [esi + APIC_SVR], eax |
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180 | |||
181 | ; Initialize LVT LINT0 register. (INTR) |
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182 | mov eax, 0x00700 |
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183 | ; mov eax, 0x10700 |
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184 | mov [esi + APIC_LVT_LINT0], eax |
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185 | |||
186 | ; Initialize LVT LINT1 register. (NMI) |
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187 | mov eax, 0x00400 |
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188 | mov [esi + APIC_LVT_LINT1], eax |
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189 | |||
190 | ; Initialize LVT Error register. |
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191 | mov eax, [esi + APIC_LVT_err] |
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192 | or eax, 0x10000 ; bit 16 |
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193 | mov [esi + APIC_LVT_err], eax |
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2010 | serge | 194 | |
1638 | serge | 195 | ; LAPIC timer |
196 | ; pre init |
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197 | mov dword[esi + APIC_timer_div], 1011b ; 1 |
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198 | mov dword[esi + APIC_timer_init], 0xffffffff ; max val |
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199 | push esi |
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200 | mov esi, 640 ; wait 0.64 sec |
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201 | call delay_ms |
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202 | pop esi |
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203 | mov eax, [esi + APIC_timer_cur] ; read current tick couner |
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204 | xor eax, 0xffffffff ; eax = 0xffffffff - eax |
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205 | shr eax, 6 ; eax /= 64; APIC ticks per 0.01 sec |
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2010 | serge | 206 | |
1638 | serge | 207 | ; Start (every 0.01 sec) |
208 | mov dword[esi + APIC_LVT_timer], 0x30020 ; periodic int 0x20 |
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209 | mov dword[esi + APIC_timer_init], eax |
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2010 | serge | 210 | |
1638 | serge | 211 | ret |
212 | ;=========================================================== |
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213 | ; IOAPIC implementation |
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214 | align 4 |
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215 | IOAPIC_read: |
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216 | ; in : EAX - IOAPIC register |
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217 | ; out: EAX - readed value |
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218 | push esi |
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219 | mov esi, [IOAPIC_base] |
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220 | mov [esi], eax |
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221 | mov eax, [esi + 0x10] |
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222 | pop esi |
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223 | ret |
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224 | align 4 |
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225 | IOAPIC_write: |
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226 | ; in : EAX - IOAPIC register |
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227 | ; EBX - value |
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228 | ; out: none |
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229 | push esi |
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230 | mov esi, [IOAPIC_base] |
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231 | mov [esi], eax |
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232 | mov [esi + 0x10], ebx |
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233 | pop esi |
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234 | ret |
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235 | ;=========================================================== |
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236 | ; Remap all IRQ to 0x20+ Vectors |
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237 | ; IRQ0 to vector 0x20, IRQ1 to vector 0x21.... |
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238 | PIC_init: |
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239 | cli |
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240 | mov al,0x11 ; icw4, edge triggered |
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241 | out 0x20,al |
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242 | call pic_delay |
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243 | out 0xA0,al |
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244 | call pic_delay |
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245 | |||
246 | mov al,0x20 ; generate 0x20 + |
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247 | out 0x21,al |
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248 | call pic_delay |
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249 | mov al,0x28 ; generate 0x28 + |
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250 | out 0xA1,al |
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251 | call pic_delay |
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252 | |||
253 | mov al,0x04 ; slave at irq2 |
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254 | out 0x21,al |
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255 | call pic_delay |
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256 | mov al,0x02 ; at irq9 |
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257 | out 0xA1,al |
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258 | call pic_delay |
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259 | |||
260 | mov al,0x01 ; 8086 mode |
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261 | out 0x21,al |
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262 | call pic_delay |
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263 | out 0xA1,al |
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264 | call pic_delay |
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265 | |||
266 | call IRQ_mask_all |
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267 | cli |
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268 | ; mov dword[irq_type_to_set], IRQ_TYPE_PIC |
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269 | ret |
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270 | |||
271 | ; ----------------------------------------- |
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272 | pic_delay: |
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273 | jmp pdl1 |
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274 | pdl1: ret |
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275 | |||
276 | ; ----------------------------------------- |
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277 | ; TIMER SET TO 1/100 S |
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278 | PIT_init: |
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279 | mov al,0x34 ; set to 100Hz |
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280 | out 0x43,al |
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281 | mov al,0x9b ; lsb 1193180 / 1193 |
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282 | out 0x40,al |
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283 | mov al,0x2e ; msb |
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284 | out 0x40,al |
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285 | ret |
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286 | |||
287 | ; ----------------------------------------- |
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288 | unmask_timer: |
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289 | test dword[APIC], 0xffffffff |
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290 | jnz @f |
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291 | stdcall enable_irq, 0 |
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292 | ret |
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2049 | serge | 293 | @@: |
1638 | serge | 294 | ; use PIT |
295 | ; in some systems PIT no connected to IOAPIC |
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296 | ; mov eax, 0x14 |
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297 | ; call IOAPIC_read |
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298 | ; mov ah, 0x09 ; Delivery Mode: Lowest Priority, Destination Mode: Logical |
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299 | ; mov al, 0x20 |
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300 | ; or eax, 0x10000 ; Mask Interrupt |
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301 | ; mov ebx, eax |
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302 | ; mov eax, 0x14 |
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303 | ; call IOAPIC_write |
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304 | ; stdcall enable_irq, 2 |
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305 | ; ret |
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2049 | serge | 306 | |
1638 | serge | 307 | ; use LAPIC timer |
308 | mov esi, [LAPIC_BASE] |
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309 | mov eax, [esi + APIC_LVT_timer] |
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310 | and eax, 0xfffeffff |
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311 | mov [esi + APIC_LVT_timer], eax |
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312 | ret |
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313 | |||
314 | ; ----------------------------------------- |
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315 | ; Disable all IRQ |
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316 | IRQ_mask_all: |
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317 | test dword[APIC], 0xffffffff |
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318 | jnz .APIC |
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319 | mov al, 0xFF |
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320 | out 0x21, al |
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321 | out 0xA1, al |
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322 | mov ecx,0x1000 |
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323 | cld |
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324 | @@: call pic_delay |
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325 | loop @b |
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326 | ret |
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327 | .APIC: |
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328 | mov ecx, [IRQ_COUNT] |
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329 | mov eax, 0x10 |
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330 | @@: mov ebx, eax |
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331 | call IOAPIC_read |
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332 | or eax, 0x10000 ; bit 16 |
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333 | xchg eax, ebx |
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334 | call IOAPIC_write |
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335 | inc eax |
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336 | inc eax |
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337 | loop @b |
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338 | ret |
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339 | ; ----------------------------------------- |
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340 | ; End Of Interrupt |
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341 | ; al - IRQ number |
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342 | align 16 |
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343 | IRQ_EOI: |
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344 | test dword[APIC], 0xffffffff |
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345 | jnz .APIC |
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346 | cmp al, 8 |
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347 | mov al, 0x20 |
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348 | jb @f |
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349 | out 0xa0, al |
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350 | @@: out 0x20, al |
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351 | ret |
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2049 | serge | 352 | .APIC: |
1638 | serge | 353 | mov eax, [LAPIC_BASE] |
354 | mov dword [eax + APIC_EOI], 0 ; EOI |
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355 | ret |
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2049 | serge | 356 | |
1638 | serge | 357 | ; ----------------------------------------- |
358 | ; from dll.inc |
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359 | align 4 |
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360 | proc enable_irq stdcall, irq_line:dword |
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361 | mov ebx, [irq_line] |
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362 | test dword[APIC], 0xffffffff |
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363 | jnz .APIC |
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364 | mov edx, 0x21 |
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365 | cmp ebx, 8 |
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366 | jb @F |
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367 | mov edx, 0xA1 |
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368 | sub ebx,8 |
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369 | @@: |
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370 | in al,dx |
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371 | btr eax, ebx |
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372 | out dx, al |
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373 | ret |
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374 | .APIC: |
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375 | shl ebx, 1 |
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376 | add ebx, 0x10 |
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377 | mov eax, ebx |
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378 | call IOAPIC_read |
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379 | and eax, 0xfffeffff ; bit 16 |
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380 | xchg eax, ebx |
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381 | call IOAPIC_write |
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382 | ret |
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383 | endp |
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384 | |||
385 | |||
386 | |||
387 | ; IRQ_TYPE_DISABLE equ 0 |
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388 | ; IRQ_TYPE_PIC equ 1 |
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389 | ; IRQ_TYPE_APIC equ 2 |
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390 | |||
391 | ; uglobal |
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392 | ; irq_type_to_set rd 1 |
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393 | ; irq_types rd IRQ_RESERVE |
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394 | ; endg |
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395 | |||
396 | ; ----------------------------------------- |
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397 | ; End Of Interrupt |
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398 | ; al - IRQ number |
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399 | ; align 16 |
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400 | ; IRQ_EOI: |
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401 | ; movzx eax, al |
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402 | ; cmp dword[irq_types + eax * 4], IRQ_TYPE_APIC |
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403 | ; jne @f |
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404 | ; mov eax, [LAPIC_BASE] |
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405 | ; mov dword [eax + APIC_EOI], 0 ; EOI |
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406 | ; ret |
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407 | ; @@: |
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408 | ; cmp al, 8 |
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409 | ; mov al, 0x20 |
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410 | ; jb @f |
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411 | ; out 0xa0, al |
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412 | ; @@: out 0x20, al |
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413 | ; ret |
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414 | |||
415 | ; align 4 |
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416 | ; proc enable_irq stdcall, irq_line:dword |
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417 | ; cmp dword[irq_type_to_set], IRQ_TYPE_APIC |
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418 | ; jne @f |
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419 | ; stdcall APIC_enable_irq, [irq_line] |
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420 | ; ret |
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421 | ; @@: stdcall PIC_enable_irq, [irq_line] |
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422 | ; ret |
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423 | ; endp |
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424 | |||
425 | ; align 4 |
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426 | ; proc disable_irq stdcall, irq_line:dword |
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427 | ; push eax |
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428 | ; mov eax, [irq_line] |
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429 | ; cmp dword[irq_types + eax * 4], IRQ_TYPE_APIC |
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430 | ; jne @f |
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431 | ; stdcall APIC_disable_irq, eax |
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432 | ; pop eax |
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433 | ; ret |
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434 | ; @@: stdcall PIC_disable_irq, eax |
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435 | ; pop eax |
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436 | ; ret |
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437 | ; endp |
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438 | |||
439 | ; align 4 |
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440 | ; proc PIC_enable_irq stdcall, irq_line:dword |
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441 | ; pusha |
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442 | ; mov ebx, [irq_line] |
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443 | ; mov eax, [irq_types + ebx * 4] |
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444 | ; cmp eax, IRQ_TYPE_DISABLE |
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445 | ; je @f |
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446 | ; cmp eax, IRQ_TYPE_PIC |
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447 | ; je @f |
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448 | ; stdcall disable_irq, ebx |
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449 | ; @@: mov dword[irq_types + ebx * 4], IRQ_TYPE_PIC |
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450 | ; mov edx, 0x21 |
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451 | ; cmp ebx, 8 |
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452 | ; jb @F |
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453 | ; mov edx, 0xA1 |
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454 | ; sub ebx,8 |
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455 | ; @@: in al,dx |
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456 | ; btr eax, ebx |
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457 | ; out dx, al |
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458 | ; popa |
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459 | ; ret |
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460 | ; endp |
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461 | |||
462 | ; align 4 |
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463 | ; proc PIC_disable_irq stdcall, irq_line:dword |
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464 | ; pusha |
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465 | ; mov ebx, [irq_line] |
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466 | ; mov dword[irq_types + ebx * 4], IRQ_TYPE_DISABLE |
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467 | ; mov edx, 0x21 |
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468 | ; cmp ebx, 8 |
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469 | ; jb @F |
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470 | ; mov edx, 0xA1 |
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471 | ; sub ebx,8 |
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472 | ; @@: in al,dx |
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473 | ; bts eax, ebx |
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474 | ; out dx, al |
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475 | ; popa |
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476 | ; ret |
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477 | ; endp |
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478 | |||
479 | ; align 4 |
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480 | ; proc APIC_enable_irq stdcall, irq_line:dword |
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481 | ; pusha |
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482 | ; mov ebx, [irq_line] |
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483 | ; mov eax, [irq_types + ebx * 4] |
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484 | ; cmp eax, IRQ_TYPE_DISABLE |
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485 | ; je @f |
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486 | ; cmp eax, IRQ_TYPE_APIC |
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487 | ; je @f |
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488 | ; stdcall disable_irq, ebx |
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489 | ; @@: mov dword[irq_types + ebx * 4], IRQ_TYPE_APIC |
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490 | ; shl ebx, 1 |
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491 | ; add ebx, 0x10 |
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492 | ; mov eax, ebx |
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493 | ; call IOAPIC_read |
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494 | ; and eax, 0xfffeffff ; bit 16 |
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495 | ; xchg eax, ebx |
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496 | ; call IOAPIC_write |
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497 | ; popa |
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498 | ; ret |
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499 | ; endp |
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500 | |||
501 | ; align 4 |
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502 | ; proc APIC_disable_irq stdcall, irq_line:dword |
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503 | ; pusha |
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504 | ; mov ebx, [irq_line] |
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505 | ; mov dword[irq_types + ebx * 4], IRQ_TYPE_DISABLE |
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506 | ; shl ebx, 1 |
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507 | ; add ebx, 0x10 |
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508 | ; mov eax, ebx |
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509 | ; call IOAPIC_read |
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510 | ; or eax, 0x10000 |
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511 | ; xchg eax, ebx |
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512 | ; call IOAPIC_write |
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513 | ; popa |
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514 | ; ret |
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515 | ; endp |
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2049 | serge | 516 | |
517 | |||
518 | macro __list_add new, prev, next |
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519 | { |
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520 | mov [next+LHEAD.prev], new |
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521 | mov [new+LHEAD.next], next |
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522 | mov [new+LHEAD.prev], prev |
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523 | mov [prev+LHEAD.next], new |
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524 | } |
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525 | |||
526 | macro list_add new, head |
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527 | { |
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528 | mov eax, [head+LHEAD.next] |
||
529 | __list_add new, head, eax |
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530 | } |
||
531 | |||
532 | macro list_add_tail new, head |
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533 | { |
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534 | mov eax, [head+LHEAD.prev] |
||
535 | __list_add new, eax, head |
||
536 | } |
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537 | |||
538 | |||
539 | align 4 |
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540 | proc attach_int_handler_ex stdcall, irq:dword, handler:dword, user_data:dword |
||
541 | locals |
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542 | .irqh dd ? |
||
543 | endl |
||
544 | |||
545 | and [.irqh], 0 |
||
546 | |||
547 | push ebx |
||
548 | |||
549 | mov ebx, [irq] ;irq num |
||
550 | test ebx, ebx |
||
551 | jz .err |
||
552 | |||
553 | cmp ebx, IRQ_RESERVE |
||
554 | jae .err |
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555 | |||
556 | mov edx, [handler] |
||
557 | test edx, edx |
||
558 | jz .err |
||
559 | |||
560 | pushfd |
||
561 | cli |
||
562 | |||
563 | ;allocate handler |
||
564 | |||
565 | mov ecx, [next_irqh] |
||
566 | test ecx, ecx |
||
567 | jz .fail |
||
568 | |||
569 | mov eax, [ecx] |
||
570 | mov [next_irqh], eax |
||
571 | |||
572 | mov [.irqh], ecx |
||
573 | |||
574 | mov eax, [user_data] |
||
575 | mov [ecx+IRQH.handler], edx |
||
576 | mov [ecx+IRQH.data], eax |
||
577 | |||
578 | mov eax, [irqh_set] |
||
579 | bt [pci_irq_set], ebx ;check irq type |
||
580 | jc .pci_irq |
||
581 | |||
582 | .isa_irq: |
||
583 | bts eax, ebx ;check for installed handler |
||
584 | jc .fail |
||
585 | |||
586 | .set_handler: |
||
587 | mov [irqh_set], eax |
||
588 | |||
589 | lea edx, [irqh_tab+ebx*8] |
||
590 | list_add_tail ecx, edx ;clobber eax |
||
591 | |||
592 | stdcall enable_irq, [irq] |
||
593 | |||
594 | .fail: |
||
595 | popfd |
||
596 | .err: |
||
597 | pop ebx |
||
598 | mov eax, [.irqh] |
||
599 | ret |
||
600 | |||
601 | .pci_irq: |
||
602 | bts ecx, ebx ;check for installed handler |
||
603 | jmp .set_handler |
||
604 | |||
605 | endp><><<> |
||
606 |