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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2011. 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 | |||
9 | iglobal |
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10 | IRQ_COUNT dd 24 |
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11 | endg |
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12 | |||
13 | uglobal |
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14 | irq_mode rd 1 |
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15 | IOAPIC_base rd 1 |
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16 | LAPIC_BASE rd 1 |
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17 | endg |
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18 | |||
19 | APIC_ID equ 0x20 |
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20 | APIC_TPR equ 0x80 |
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21 | APIC_EOI equ 0xb0 |
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22 | APIC_LDR equ 0xd0 |
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23 | APIC_DFR equ 0xe0 |
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24 | APIC_SVR equ 0xf0 |
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25 | APIC_ISR equ 0x100 |
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26 | APIC_ESR equ 0x280 |
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27 | APIC_ICRL equ 0x300 |
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28 | APIC_ICRH equ 0x310 |
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29 | APIC_LVT_LINT0 equ 0x350 |
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30 | APIC_LVT_LINT1 equ 0x360 |
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31 | APIC_LVT_err equ 0x370 |
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32 | |||
33 | ; APIC timer |
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34 | APIC_LVT_timer equ 0x320 |
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35 | APIC_timer_div equ 0x3e0 |
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36 | APIC_timer_init equ 0x380 |
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37 | APIC_timer_cur equ 0x390 |
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38 | ; IOAPIC |
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39 | IOAPIC_ID equ 0x0 |
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40 | IOAPIC_VER equ 0x1 |
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41 | IOAPIC_ARB equ 0x2 |
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42 | IOAPIC_REDTBL equ 0x10 |
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43 | |||
44 | align 4 |
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45 | APIC_init: |
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46 | mov [irq_mode], IRQ_PIC |
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47 | |||
48 | cmp [acpi_ioapic_base], 0 |
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49 | jz .no_apic |
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50 | |||
51 | cmp [acpi_lapic_base], 0 |
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52 | jz .no_apic |
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53 | |||
54 | stdcall load_file, dev_data_path |
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55 | test eax, eax |
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56 | jz .no_apic |
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57 | |||
58 | mov [acpi_dev_data], eax |
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59 | mov [acpi_dev_size], ebx |
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60 | |||
61 | call IRQ_mask_all |
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62 | |||
63 | ; IOAPIC init |
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2443 | Serge | 64 | stdcall map_io_mem, [acpi_ioapic_base], 0x20, PG_SW+PG_NOCACHE |
2288 | clevermous | 65 | mov [IOAPIC_base], eax |
66 | |||
67 | mov eax, IOAPIC_VER |
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68 | call IOAPIC_read |
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69 | shr eax, 16 |
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70 | inc al |
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71 | movzx eax, al |
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72 | cmp al, IRQ_RESERVED |
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73 | jbe @f |
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74 | |||
75 | mov al, IRQ_RESERVED |
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76 | @@: |
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77 | mov [IRQ_COUNT], eax |
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78 | |||
79 | ; Reroute IOAPIC & mask all interrupts |
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80 | xor ecx, ecx |
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81 | mov eax, IOAPIC_REDTBL |
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82 | @@: |
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83 | mov ebx, eax |
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84 | call IOAPIC_read |
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85 | mov ah, 0x09; Delivery Mode: Lowest Priority, Destination Mode: Logical |
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86 | mov al, cl |
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87 | add al, 0x20; vector |
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88 | or eax, 0x10000; Mask Interrupt |
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89 | cmp ecx, 16 |
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90 | jb .set |
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91 | |||
92 | or eax, 0xa000;<<< level-triggered active-low for IRQ16+ |
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93 | .set: |
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94 | xchg eax, ebx |
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95 | call IOAPIC_write |
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96 | inc eax |
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97 | mov ebx, eax |
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98 | call IOAPIC_read |
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99 | or eax, 0xff000000; Destination Field |
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100 | xchg eax, ebx |
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101 | call IOAPIC_write |
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102 | inc eax |
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103 | inc ecx |
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104 | cmp ecx, [IRQ_COUNT] |
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105 | jb @b |
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106 | |||
107 | call LAPIC_init |
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108 | |||
109 | mov [irq_mode], IRQ_APIC |
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110 | |||
111 | mov al, 0x70 |
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112 | out 0x22, al |
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113 | mov al, 1 |
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114 | out 0x23, al |
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115 | |||
116 | call pci_irq_fixup |
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117 | .no_apic: |
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118 | |||
119 | ret |
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120 | |||
121 | ;=========================================================== |
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122 | align 4 |
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123 | LAPIC_init: |
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124 | |||
2443 | Serge | 125 | cmp [LAPIC_BASE], 0 |
126 | jne .done |
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127 | |||
128 | stdcall map_io_mem, [acpi_lapic_base], 0x1000, PG_SW+PG_NOCACHE |
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2288 | clevermous | 129 | mov [LAPIC_BASE], eax |
130 | mov esi, eax |
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131 | |||
132 | ; Program Destination Format Register for Flat mode. |
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133 | mov eax, [esi + APIC_DFR] |
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134 | or eax, 0xf0000000 |
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135 | mov [esi + APIC_DFR], eax |
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136 | |||
137 | ; Program Logical Destination Register. |
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138 | mov eax, [esi + APIC_LDR] |
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139 | ;and eax, 0xff000000 |
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140 | and eax, 0x00ffffff |
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141 | or eax, 0x01000000;!!!!!!!!!!!! |
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142 | mov [esi + APIC_LDR], eax |
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143 | |||
144 | ; Task Priority Register initialization. |
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145 | mov eax, [esi + APIC_TPR] |
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146 | and eax, 0xffffff00 |
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147 | mov [esi + APIC_TPR], eax |
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148 | |||
149 | ; Flush the queue |
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150 | mov edx, 0 |
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151 | .nxt2: |
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152 | mov ecx, 32 |
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153 | mov eax, [esi + APIC_ISR + edx] |
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154 | .nxt: |
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155 | shr eax, 1 |
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156 | jnc @f |
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157 | mov dword [esi + APIC_EOI], 0; EOI |
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158 | @@: |
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159 | loop .nxt |
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160 | |||
161 | add edx, 0x10 |
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162 | cmp edx, 0x170 |
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163 | jbe .nxt2 |
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164 | |||
165 | ; Spurious-Interrupt Vector Register initialization. |
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166 | mov eax, [esi + APIC_SVR] |
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167 | or eax, 0x1ff |
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168 | and eax, 0xfffffdff |
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169 | mov [esi + APIC_SVR], eax |
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170 | |||
171 | ; Initialize LVT LINT0 register. (INTR) |
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172 | mov eax, 0x00700 |
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173 | ; mov eax, 0x10700 |
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174 | mov [esi + APIC_LVT_LINT0], eax |
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175 | |||
176 | ; Initialize LVT LINT1 register. (NMI) |
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177 | mov eax, 0x00400 |
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178 | mov [esi + APIC_LVT_LINT1], eax |
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179 | |||
180 | ; Initialize LVT Error register. |
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181 | mov eax, [esi + APIC_LVT_err] |
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182 | or eax, 0x10000; bit 16 |
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183 | mov [esi + APIC_LVT_err], eax |
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184 | |||
185 | ; LAPIC timer |
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186 | ; pre init |
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187 | mov dword[esi + APIC_timer_div], 1011b; 1 |
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188 | mov dword[esi + APIC_timer_init], 0xffffffff; max val |
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189 | push esi |
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190 | mov esi, 640 ; wait 0.64 sec |
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191 | call delay_ms |
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192 | pop esi |
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193 | mov eax, [esi + APIC_timer_cur]; read current tick couner |
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194 | xor eax, 0xffffffff ; eax = 0xffffffff - eax |
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195 | shr eax, 6 ; eax /= 64; APIC ticks per 0.01 sec |
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196 | |||
197 | ; Start (every 0.01 sec) |
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198 | mov dword[esi + APIC_LVT_timer], 0x30020; periodic int 0x20 |
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199 | mov dword[esi + APIC_timer_init], eax |
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2443 | Serge | 200 | |
201 | .done: |
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2288 | clevermous | 202 | ret |
203 | |||
204 | ;=========================================================== |
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205 | ; IOAPIC implementation |
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206 | align 4 |
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207 | IOAPIC_read: |
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208 | ; in : EAX - IOAPIC register |
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209 | ; out: EAX - readed value |
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210 | push esi |
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211 | mov esi, [IOAPIC_base] |
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212 | mov [esi], eax |
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213 | mov eax, [esi + 0x10] |
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214 | pop esi |
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215 | ret |
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216 | |||
217 | align 4 |
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218 | IOAPIC_write: |
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219 | ; in : EAX - IOAPIC register |
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220 | ; EBX - value |
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221 | ; out: none |
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222 | push esi |
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223 | mov esi, [IOAPIC_base] |
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224 | mov [esi], eax |
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225 | mov [esi + 0x10], ebx |
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226 | pop esi |
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227 | ret |
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228 | ;=========================================================== |
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229 | ; Remap all IRQ to 0x20+ Vectors |
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230 | ; IRQ0 to vector 0x20, IRQ1 to vector 0x21.... |
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231 | align 4 |
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232 | PIC_init: |
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233 | cli |
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234 | mov al, 0x11 ; icw4, edge triggered |
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235 | out 0x20, al |
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236 | out 0xA0, al |
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237 | |||
238 | mov al, 0x20 ; generate 0x20 + |
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239 | out 0x21, al |
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240 | mov al, 0x28 ; generate 0x28 + |
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241 | out 0xA1, al |
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242 | |||
243 | mov al, 0x04 ; slave at irq2 |
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244 | out 0x21, al |
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245 | mov al, 0x02 ; at irq9 |
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246 | out 0xA1, al |
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247 | |||
248 | mov al, 0x01 ; 8086 mode |
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249 | out 0x21, al |
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250 | out 0xA1, al |
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251 | |||
252 | call IRQ_mask_all |
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253 | ; mov dword[irq_type_to_set], IRQ_TYPE_PIC |
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254 | ret |
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255 | |||
256 | ; ----------------------------------------- |
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257 | ; TIMER SET TO 1/100 S |
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258 | align 4 |
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259 | PIT_init: |
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260 | mov al, 0x34 ; set to 100Hz |
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261 | out 0x43, al |
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262 | mov al, 0x9b ; lsb 1193180 / 1193 |
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263 | out 0x40, al |
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264 | mov al, 0x2e ; msb |
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265 | out 0x40, al |
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266 | ret |
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267 | |||
268 | ; ----------------------------------------- |
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269 | align 4 |
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270 | unmask_timer: |
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271 | cmp [irq_mode], IRQ_APIC |
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272 | je @f |
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273 | |||
274 | stdcall enable_irq, 0 |
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275 | ret |
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276 | @@: |
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277 | ; use PIT |
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278 | ; in some systems PIT no connected to IOAPIC |
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279 | ; mov eax, 0x14 |
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280 | ; call IOAPIC_read |
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281 | ; mov ah, 0x09 ; Delivery Mode: Lowest Priority, Destination Mode: Logical |
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282 | ; mov al, 0x20 |
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283 | ; or eax, 0x10000 ; Mask Interrupt |
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284 | ; mov ebx, eax |
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285 | ; mov eax, 0x14 |
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286 | ; call IOAPIC_write |
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287 | ; stdcall enable_irq, 2 |
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288 | ; ret |
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289 | |||
290 | ; use LAPIC timer |
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291 | mov esi, [LAPIC_BASE] |
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292 | mov eax, [esi + APIC_LVT_timer] |
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293 | and eax, 0xfffeffff |
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294 | mov [esi + APIC_LVT_timer], eax |
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295 | ret |
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296 | |||
297 | ; ----------------------------------------- |
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298 | ; Disable all IRQ |
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299 | align 4 |
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300 | IRQ_mask_all: |
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301 | cmp [irq_mode], IRQ_APIC |
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302 | je .APIC |
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303 | |||
304 | mov al, 0xFF |
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305 | out 0x21, al |
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306 | out 0xA1, al |
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307 | mov ecx, 0x1000 |
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308 | ret |
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309 | .APIC: |
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310 | mov ecx, [IRQ_COUNT] |
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311 | mov eax, 0x10 |
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312 | @@: |
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313 | mov ebx, eax |
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314 | call IOAPIC_read |
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315 | or eax, 0x10000; bit 16 |
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316 | xchg eax, ebx |
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317 | call IOAPIC_write |
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318 | inc eax |
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319 | inc eax |
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320 | loop @b |
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321 | ret |
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322 | |||
323 | ; ----------------------------------------- |
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324 | ; End Of Interrupt |
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325 | ; cl - IRQ number |
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326 | align 4 |
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327 | irq_eoi: ; __fastcall |
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328 | cmp [irq_mode], IRQ_APIC |
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329 | je .APIC |
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330 | |||
331 | cmp cl, 8 |
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332 | mov al, 0x20 |
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333 | jb @f |
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334 | out 0xa0, al |
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335 | @@: |
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336 | out 0x20, al |
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337 | ret |
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338 | |||
339 | .APIC: |
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340 | mov eax, [LAPIC_BASE] |
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341 | mov dword [eax + APIC_EOI], 0; EOI |
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342 | ret |
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343 | |||
344 | ; ----------------------------------------- |
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345 | ; from dll.inc |
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346 | align 4 |
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347 | proc enable_irq stdcall, irq_line:dword |
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348 | mov ebx, [irq_line] |
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349 | cmp [irq_mode], IRQ_APIC |
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350 | je .APIC |
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351 | |||
352 | mov edx, 0x21 |
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353 | cmp ebx, 8 |
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354 | jb @F |
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355 | |||
356 | mov edx, 0xA1 |
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357 | sub ebx, 8 |
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358 | @@: |
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359 | in al, dx |
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360 | btr eax, ebx |
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361 | out dx, al |
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362 | ret |
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363 | .APIC: |
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364 | shl ebx, 1 |
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365 | add ebx, 0x10 |
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366 | mov eax, ebx |
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367 | call IOAPIC_read |
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368 | and eax, 0xfffeffff; bit 16 |
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369 | xchg eax, ebx |
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370 | call IOAPIC_write |
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371 | ret |
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372 | endp |
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373 | |||
374 | align 4 |
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375 | pci_irq_fixup: |
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376 | |||
377 | push ebp |
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378 | |||
379 | mov esi, [acpi_dev_data] |
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380 | mov ebx, [acpi_dev_size] |
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381 | |||
382 | lea edi, [esi+ebx] |
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383 | |||
384 | .iterate: |
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385 | |||
386 | cmp esi, edi |
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387 | jae .done |
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388 | |||
389 | mov eax, [esi] |
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390 | |||
391 | cmp eax, -1 |
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392 | je .done |
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393 | |||
394 | movzx ebx, al |
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395 | movzx ebp, ah |
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396 | |||
397 | stdcall pci_read32, ebp, ebx, 0 |
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398 | |||
399 | cmp eax, [esi+4] |
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400 | jne .skip |
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401 | |||
402 | mov eax, [esi+8] |
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403 | stdcall pci_write8, ebp, ebx, 0x3C, eax |
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404 | .skip: |
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405 | add esi, 16 |
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406 | jmp .iterate |
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407 | |||
408 | .done: |
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409 | .fail: |
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410 | pop ebp |
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411 | ret><><<> |
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412 |