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Rev | Author | Line No. | Line |
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1638 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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2209 | Serge | 3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
1638 | serge | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
8 | |||
9 | iglobal |
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2219 | Serge | 10 | IRQ_COUNT dd 24 |
1638 | serge | 11 | endg |
12 | |||
13 | uglobal |
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2219 | Serge | 14 | irq_mode rd 1 |
2212 | Serge | 15 | IOAPIC_base rd 1 |
16 | LAPIC_BASE rd 1 |
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1638 | serge | 17 | endg |
18 | |||
2217 | Serge | 19 | APIC_ID equ 0x20 |
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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1638 | serge | 29 | APIC_LVT_LINT0 equ 0x350 |
30 | APIC_LVT_LINT1 equ 0x360 |
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2217 | Serge | 31 | APIC_LVT_err equ 0x370 |
1638 | serge | 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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2217 | Serge | 39 | IOAPIC_ID equ 0x0 |
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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1638 | serge | 43 | |
2217 | Serge | 44 | align 4 |
1638 | serge | 45 | APIC_init: |
2219 | Serge | 46 | mov [irq_mode], IRQ_PIC |
2010 | serge | 47 | |
2219 | Serge | 48 | cmp [acpi_ioapic_base], 0 |
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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2217 | Serge | 55 | test eax, eax |
56 | jz .no_apic |
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2212 | Serge | 57 | |
2229 | Serge | 58 | mov [acpi_dev_data], eax |
59 | mov [acpi_dev_size], ebx |
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60 | |||
2217 | Serge | 61 | call IRQ_mask_all |
2010 | serge | 62 | |
2219 | Serge | 63 | ; IOAPIC init |
2217 | Serge | 64 | stdcall map_io_mem, [acpi_ioapic_base], 0x20, PG_SW |
65 | mov [IOAPIC_base], eax |
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2010 | serge | 66 | |
2217 | Serge | 67 | mov eax, IOAPIC_VER |
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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2130 | serge | 76 | @@: |
2217 | Serge | 77 | mov [IRQ_COUNT], eax |
1638 | serge | 78 | |
79 | ; Reroute IOAPIC & mask all interrupts |
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2217 | Serge | 80 | xor ecx, ecx |
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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2434 | Serge | 85 | mov ah, 0x09; Delivery Mode: Lowest Priority, Destination Mode: Logical |
2217 | Serge | 86 | mov al, cl |
2434 | Serge | 87 | add al, 0x20; vector |
88 | or eax, 0x10000; Mask Interrupt |
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2217 | Serge | 89 | cmp ecx, 16 |
90 | jb .set |
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91 | |||
2434 | Serge | 92 | or eax, 0xa000;<<< level-triggered active-low for IRQ16+ |
1638 | serge | 93 | .set: |
2217 | Serge | 94 | xchg eax, ebx |
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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2434 | Serge | 99 | or eax, 0xff000000; Destination Field |
2217 | Serge | 100 | xchg eax, ebx |
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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1638 | serge | 106 | |
2217 | Serge | 107 | call LAPIC_init |
2010 | serge | 108 | |
2219 | Serge | 109 | mov [irq_mode], IRQ_APIC |
2010 | serge | 110 | |
2217 | Serge | 111 | mov al, 0x70 |
112 | out 0x22, al |
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113 | mov al, 1 |
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114 | out 0x23, al |
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2010 | serge | 115 | |
2229 | Serge | 116 | call pci_irq_fixup |
2217 | Serge | 117 | .no_apic: |
118 | |||
119 | ret |
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2010 | serge | 120 | |
1638 | serge | 121 | ;=========================================================== |
122 | align 4 |
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123 | LAPIC_init: |
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124 | ; Check MSR support |
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125 | ;.... |
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126 | ; Get LAPIC base address |
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2212 | Serge | 127 | ; mov ecx, 0x1b |
128 | ; rdmsr ; it may be replaced to |
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129 | ; and ax, 0xf000 ; mov eax, 0xfee00000 |
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2010 | serge | 130 | |
2217 | Serge | 131 | stdcall map_io_mem, [acpi_lapic_base], 0x1000, PG_SW |
132 | mov [LAPIC_BASE], eax |
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133 | mov esi, eax |
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2010 | serge | 134 | |
1638 | serge | 135 | ; Program Destination Format Register for Flat mode. |
2217 | Serge | 136 | mov eax, [esi + APIC_DFR] |
137 | or eax, 0xf0000000 |
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138 | mov [esi + APIC_DFR], eax |
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2010 | serge | 139 | |
1638 | serge | 140 | ; Program Logical Destination Register. |
2217 | Serge | 141 | mov eax, [esi + APIC_LDR] |
142 | ;and eax, 0xff000000 |
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143 | and eax, 0x00ffffff |
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2434 | Serge | 144 | or eax, 0x01000000;!!!!!!!!!!!! |
2217 | Serge | 145 | mov [esi + APIC_LDR], eax |
2010 | serge | 146 | |
1638 | serge | 147 | ; Task Priority Register initialization. |
2217 | Serge | 148 | mov eax, [esi + APIC_TPR] |
149 | and eax, 0xffffff00 |
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150 | mov [esi + APIC_TPR], eax |
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1638 | serge | 151 | |
152 | ; Flush the queue |
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2217 | Serge | 153 | mov edx, 0 |
154 | .nxt2: |
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155 | mov ecx, 32 |
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156 | mov eax, [esi + APIC_ISR + edx] |
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157 | .nxt: |
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158 | shr eax, 1 |
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159 | jnc @f |
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2434 | Serge | 160 | mov dword [esi + APIC_EOI], 0; EOI |
2217 | Serge | 161 | @@: |
162 | loop .nxt |
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1638 | serge | 163 | |
2217 | Serge | 164 | add edx, 0x10 |
165 | cmp edx, 0x170 |
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166 | jbe .nxt2 |
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167 | |||
1638 | serge | 168 | ; Spurious-Interrupt Vector Register initialization. |
2217 | Serge | 169 | mov eax, [esi + APIC_SVR] |
170 | or eax, 0x1ff |
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171 | and eax, 0xfffffdff |
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172 | mov [esi + APIC_SVR], eax |
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1638 | serge | 173 | |
174 | ; Initialize LVT LINT0 register. (INTR) |
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2217 | Serge | 175 | mov eax, 0x00700 |
176 | ; mov eax, 0x10700 |
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177 | mov [esi + APIC_LVT_LINT0], eax |
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1638 | serge | 178 | |
179 | ; Initialize LVT LINT1 register. (NMI) |
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2217 | Serge | 180 | mov eax, 0x00400 |
181 | mov [esi + APIC_LVT_LINT1], eax |
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1638 | serge | 182 | |
183 | ; Initialize LVT Error register. |
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2217 | Serge | 184 | mov eax, [esi + APIC_LVT_err] |
2434 | Serge | 185 | or eax, 0x10000; bit 16 |
2217 | Serge | 186 | mov [esi + APIC_LVT_err], eax |
2010 | serge | 187 | |
1638 | serge | 188 | ; LAPIC timer |
189 | ; pre init |
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2434 | Serge | 190 | mov dword[esi + APIC_timer_div], 1011b; 1 |
191 | mov dword[esi + APIC_timer_init], 0xffffffff; max val |
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2217 | Serge | 192 | push esi |
193 | mov esi, 640 ; wait 0.64 sec |
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194 | call delay_ms |
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195 | pop esi |
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2434 | Serge | 196 | mov eax, [esi + APIC_timer_cur]; read current tick couner |
2217 | Serge | 197 | xor eax, 0xffffffff ; eax = 0xffffffff - eax |
198 | shr eax, 6 ; eax /= 64; APIC ticks per 0.01 sec |
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2010 | serge | 199 | |
1638 | serge | 200 | ; Start (every 0.01 sec) |
2434 | Serge | 201 | mov dword[esi + APIC_LVT_timer], 0x30020; periodic int 0x20 |
2217 | Serge | 202 | mov dword[esi + APIC_timer_init], eax |
203 | ret |
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2010 | serge | 204 | |
1638 | serge | 205 | ;=========================================================== |
206 | ; IOAPIC implementation |
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207 | align 4 |
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208 | IOAPIC_read: |
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209 | ; in : EAX - IOAPIC register |
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210 | ; out: EAX - readed value |
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2217 | Serge | 211 | push esi |
212 | mov esi, [IOAPIC_base] |
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213 | mov [esi], eax |
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214 | mov eax, [esi + 0x10] |
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215 | pop esi |
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216 | ret |
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217 | |||
1638 | serge | 218 | align 4 |
219 | IOAPIC_write: |
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220 | ; in : EAX - IOAPIC register |
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221 | ; EBX - value |
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222 | ; out: none |
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2217 | Serge | 223 | push esi |
224 | mov esi, [IOAPIC_base] |
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225 | mov [esi], eax |
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226 | mov [esi + 0x10], ebx |
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227 | pop esi |
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228 | ret |
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1638 | serge | 229 | ;=========================================================== |
230 | ; Remap all IRQ to 0x20+ Vectors |
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231 | ; IRQ0 to vector 0x20, IRQ1 to vector 0x21.... |
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2219 | Serge | 232 | align 4 |
1638 | serge | 233 | PIC_init: |
2217 | Serge | 234 | cli |
2434 | Serge | 235 | mov al, 0x11 ; icw4, edge triggered |
236 | out 0x20, al |
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237 | out 0xA0, al |
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1638 | serge | 238 | |
2434 | Serge | 239 | mov al, 0x20 ; generate 0x20 + |
240 | out 0x21, al |
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241 | mov al, 0x28 ; generate 0x28 + |
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242 | out 0xA1, al |
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1638 | serge | 243 | |
2434 | Serge | 244 | mov al, 0x04 ; slave at irq2 |
245 | out 0x21, al |
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246 | mov al, 0x02 ; at irq9 |
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247 | out 0xA1, al |
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1638 | serge | 248 | |
2434 | Serge | 249 | mov al, 0x01 ; 8086 mode |
250 | out 0x21, al |
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251 | out 0xA1, al |
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1638 | serge | 252 | |
2217 | Serge | 253 | call IRQ_mask_all |
1638 | serge | 254 | ; mov dword[irq_type_to_set], IRQ_TYPE_PIC |
2217 | Serge | 255 | ret |
1638 | serge | 256 | |
257 | ; ----------------------------------------- |
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258 | ; TIMER SET TO 1/100 S |
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2219 | Serge | 259 | align 4 |
1638 | serge | 260 | PIT_init: |
2434 | Serge | 261 | mov al, 0x34 ; set to 100Hz |
262 | out 0x43, al |
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263 | mov al, 0x9b ; lsb 1193180 / 1193 |
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264 | out 0x40, al |
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265 | mov al, 0x2e ; msb |
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266 | out 0x40, al |
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2217 | Serge | 267 | ret |
1638 | serge | 268 | |
269 | ; ----------------------------------------- |
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2219 | Serge | 270 | align 4 |
1638 | serge | 271 | unmask_timer: |
2219 | Serge | 272 | cmp [irq_mode], IRQ_APIC |
273 | je @f |
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274 | |||
2217 | Serge | 275 | stdcall enable_irq, 0 |
276 | ret |
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2049 | serge | 277 | @@: |
1638 | serge | 278 | ; use PIT |
279 | ; in some systems PIT no connected to IOAPIC |
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280 | ; mov eax, 0x14 |
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281 | ; call IOAPIC_read |
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282 | ; mov ah, 0x09 ; Delivery Mode: Lowest Priority, Destination Mode: Logical |
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283 | ; mov al, 0x20 |
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284 | ; or eax, 0x10000 ; Mask Interrupt |
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285 | ; mov ebx, eax |
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286 | ; mov eax, 0x14 |
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287 | ; call IOAPIC_write |
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288 | ; stdcall enable_irq, 2 |
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289 | ; ret |
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2049 | serge | 290 | |
1638 | serge | 291 | ; use LAPIC timer |
2217 | Serge | 292 | mov esi, [LAPIC_BASE] |
293 | mov eax, [esi + APIC_LVT_timer] |
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294 | and eax, 0xfffeffff |
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295 | mov [esi + APIC_LVT_timer], eax |
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296 | ret |
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1638 | serge | 297 | |
298 | ; ----------------------------------------- |
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299 | ; Disable all IRQ |
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2219 | Serge | 300 | align 4 |
1638 | serge | 301 | IRQ_mask_all: |
2219 | Serge | 302 | cmp [irq_mode], IRQ_APIC |
303 | je .APIC |
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304 | |||
2217 | Serge | 305 | mov al, 0xFF |
306 | out 0x21, al |
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307 | out 0xA1, al |
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2434 | Serge | 308 | mov ecx, 0x1000 |
2217 | Serge | 309 | ret |
1638 | serge | 310 | .APIC: |
2217 | Serge | 311 | mov ecx, [IRQ_COUNT] |
312 | mov eax, 0x10 |
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313 | @@: |
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314 | mov ebx, eax |
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315 | call IOAPIC_read |
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2434 | Serge | 316 | or eax, 0x10000; bit 16 |
2217 | Serge | 317 | xchg eax, ebx |
318 | call IOAPIC_write |
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319 | inc eax |
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320 | inc eax |
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321 | loop @b |
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322 | ret |
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323 | |||
1638 | serge | 324 | ; ----------------------------------------- |
325 | ; End Of Interrupt |
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2166 | serge | 326 | ; cl - IRQ number |
2219 | Serge | 327 | align 4 |
2166 | serge | 328 | irq_eoi: ; __fastcall |
2219 | Serge | 329 | cmp [irq_mode], IRQ_APIC |
330 | je .APIC |
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2217 | Serge | 331 | |
332 | cmp cl, 8 |
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333 | mov al, 0x20 |
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334 | jb @f |
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335 | out 0xa0, al |
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2166 | serge | 336 | @@: |
2217 | Serge | 337 | out 0x20, al |
338 | ret |
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2166 | serge | 339 | |
2049 | serge | 340 | .APIC: |
2217 | Serge | 341 | mov eax, [LAPIC_BASE] |
2434 | Serge | 342 | mov dword [eax + APIC_EOI], 0; EOI |
2217 | Serge | 343 | ret |
2049 | serge | 344 | |
1638 | serge | 345 | ; ----------------------------------------- |
346 | ; from dll.inc |
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347 | align 4 |
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348 | proc enable_irq stdcall, irq_line:dword |
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2217 | Serge | 349 | mov ebx, [irq_line] |
2219 | Serge | 350 | cmp [irq_mode], IRQ_APIC |
351 | je .APIC |
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2217 | Serge | 352 | |
353 | mov edx, 0x21 |
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354 | cmp ebx, 8 |
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355 | jb @F |
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356 | |||
357 | mov edx, 0xA1 |
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2434 | Serge | 358 | sub ebx, 8 |
1638 | serge | 359 | @@: |
2434 | Serge | 360 | in al, dx |
2217 | Serge | 361 | btr eax, ebx |
362 | out dx, al |
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363 | ret |
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1638 | serge | 364 | .APIC: |
2217 | Serge | 365 | shl ebx, 1 |
366 | add ebx, 0x10 |
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367 | mov eax, ebx |
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368 | call IOAPIC_read |
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2434 | Serge | 369 | and eax, 0xfffeffff; bit 16 |
2217 | Serge | 370 | xchg eax, ebx |
371 | call IOAPIC_write |
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372 | ret |
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1638 | serge | 373 | endp |
374 | |||
2219 | Serge | 375 | align 4 |
376 | pci_irq_fixup: |
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1638 | serge | 377 | |
2219 | Serge | 378 | push ebp |
1638 | serge | 379 | |
2219 | Serge | 380 | mov esi, [acpi_dev_data] |
381 | mov ebx, [acpi_dev_size] |
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382 | |||
383 | lea edi, [esi+ebx] |
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384 | |||
385 | .iterate: |
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386 | |||
387 | cmp esi, edi |
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388 | jae .done |
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389 | |||
390 | mov eax, [esi] |
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391 | |||
392 | cmp eax, -1 |
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393 | je .done |
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394 | |||
395 | movzx ebx, al |
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396 | movzx ebp, ah |
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397 | |||
398 | stdcall pci_read32, ebp, ebx, 0 |
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399 | |||
400 | cmp eax, [esi+4] |
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401 | jne .skip |
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402 | |||
403 | mov eax, [esi+8] |
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404 | stdcall pci_write8, ebp, ebx, 0x3C, eax |
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405 | .skip: |
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406 | add esi, 16 |
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407 | jmp .iterate |
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408 | |||
409 | .done: |
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410 | .fail: |
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411 | pop ebp |
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412 | ret><><<> |
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413 |