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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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9715 | Doczom | 3 | ;; Copyright (C) KolibriOS team 2004-2022. All rights reserved. ;; |
2288 | clevermous | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
4850 | mario79 | 8 | $Revision: 9715 $ |
2288 | clevermous | 9 | |
7733 | dunkaist | 10 | MAX_IOAPICS = 2 |
4850 | mario79 | 11 | |
2288 | clevermous | 12 | uglobal |
7733 | dunkaist | 13 | IRQ_COUNT rd MAX_IOAPICS |
14 | irq_mode rd 1 ; PIC/(IO)APIC |
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15 | IOAPIC_base rd MAX_IOAPICS |
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16 | ioapic_gsi_base rd MAX_IOAPICS ; zero-based, i.e. not vector |
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17 | ioapic_cnt dd ? ; from MADT aka APIC table |
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18 | ioapic_cur dd ? |
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2288 | clevermous | 19 | LAPIC_BASE rd 1 |
20 | endg |
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21 | |||
7136 | dunkaist | 22 | APIC_ID = 0x20 |
23 | APIC_TPR = 0x80 |
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24 | APIC_EOI = 0xb0 |
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25 | APIC_LDR = 0xd0 |
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26 | APIC_DFR = 0xe0 |
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27 | APIC_SVR = 0xf0 |
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28 | APIC_ISR = 0x100 |
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29 | APIC_ESR = 0x280 |
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30 | APIC_ICRL = 0x300 |
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31 | APIC_ICRH = 0x310 |
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32 | APIC_LVT_LINT0 = 0x350 |
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33 | APIC_LVT_LINT1 = 0x360 |
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34 | APIC_LVT_err = 0x370 |
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2288 | clevermous | 35 | |
36 | ; APIC timer |
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7136 | dunkaist | 37 | APIC_LVT_timer = 0x320 |
38 | APIC_timer_div = 0x3e0 |
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39 | APIC_timer_init = 0x380 |
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40 | APIC_timer_cur = 0x390 |
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2288 | clevermous | 41 | ; IOAPIC |
7136 | dunkaist | 42 | IOAPIC_ID = 0x0 |
43 | IOAPIC_VER = 0x1 |
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44 | IOAPIC_ARB = 0x2 |
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45 | IOAPIC_REDTBL = 0x10 |
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2288 | clevermous | 46 | |
47 | align 4 |
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48 | APIC_init: |
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7733 | dunkaist | 49 | push ebx |
2288 | clevermous | 50 | mov [irq_mode], IRQ_PIC |
51 | |||
52 | cmp [acpi_ioapic_base], 0 |
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53 | jz .no_apic |
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54 | |||
55 | cmp [acpi_lapic_base], 0 |
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56 | jz .no_apic |
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57 | |||
8117 | dunkaist | 58 | ; non-UEFI loaders don't load DEVICES.DAT and don't initialize [acpi_dev_size] |
59 | if defined UEFI |
||
8092 | dunkaist | 60 | cmp [acpi_dev_size], 0 |
61 | jz @f |
||
62 | stdcall map_io_mem, [acpi_dev_data], [acpi_dev_size], PG_SWR |
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63 | mov [acpi_dev_data], eax |
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64 | jmp .loaded |
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65 | @@: |
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8117 | dunkaist | 66 | end if |
8092 | dunkaist | 67 | |
2288 | clevermous | 68 | stdcall load_file, dev_data_path |
69 | test eax, eax |
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70 | jz .no_apic |
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71 | |||
72 | mov [acpi_dev_data], eax |
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73 | mov [acpi_dev_size], ebx |
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8092 | dunkaist | 74 | .loaded: |
2288 | clevermous | 75 | |
76 | ; IOAPIC init |
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7733 | dunkaist | 77 | xor ebx, ebx |
78 | @@: |
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9715 | Doczom | 79 | stdcall map_io_mem, [acpi_ioapic_base + ebx*4], 0x20, PG_GLOBAL + PG_NOCACHE + PG_SWR |
80 | mov [IOAPIC_base + ebx*4], eax |
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7733 | dunkaist | 81 | inc ebx |
82 | cmp ebx, [ioapic_cnt] |
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83 | jnz @b |
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2288 | clevermous | 84 | |
7733 | dunkaist | 85 | call IRQ_mask_all |
86 | mov [ioapic_cur], 0 |
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87 | .next_ioapic: |
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88 | mov edx, [ioapic_cur] |
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2288 | clevermous | 89 | mov eax, IOAPIC_VER |
90 | call IOAPIC_read |
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91 | shr eax, 16 |
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92 | inc al |
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93 | movzx eax, al |
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9715 | Doczom | 94 | mov ecx, [ioapic_gsi_base + edx*4] |
7733 | dunkaist | 95 | cmp ecx, IRQ_RESERVED |
96 | jae .lapic_init |
||
97 | add ecx, eax |
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98 | sub ecx, IRQ_RESERVED |
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2288 | clevermous | 99 | jbe @f |
7733 | dunkaist | 100 | sub eax, ecx |
2288 | clevermous | 101 | @@: |
9715 | Doczom | 102 | mov [IRQ_COUNT + edx*4], eax |
2288 | clevermous | 103 | |
104 | ; Reroute IOAPIC & mask all interrupts |
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105 | xor ecx, ecx |
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106 | mov eax, IOAPIC_REDTBL |
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7733 | dunkaist | 107 | .next_irq: |
2288 | clevermous | 108 | mov ebx, eax |
109 | call IOAPIC_read |
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3751 | Serge | 110 | mov ah, 0x08; Delivery Mode: Fixed, Destination Mode: Logical |
2288 | clevermous | 111 | mov al, cl |
112 | add al, 0x20; vector |
||
9715 | Doczom | 113 | add eax, [ioapic_gsi_base + edx*4] |
7733 | dunkaist | 114 | or eax, 0x1a000; Mask Interrupt, level-triggered active-low |
115 | cmp [ioapic_cur], 0 |
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116 | jnz @f |
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2288 | clevermous | 117 | cmp ecx, 16 |
7733 | dunkaist | 118 | jae @f |
119 | and eax, NOT 0xa000 ; edge-triggered active-high for IRQ0-15 |
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120 | @@: |
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2288 | clevermous | 121 | xchg eax, ebx |
122 | call IOAPIC_write |
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123 | inc eax |
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124 | mov ebx, eax |
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125 | call IOAPIC_read |
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126 | or eax, 0xff000000; Destination Field |
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127 | xchg eax, ebx |
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128 | call IOAPIC_write |
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129 | inc eax |
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130 | inc ecx |
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9715 | Doczom | 131 | cmp ecx, [IRQ_COUNT + edx*4] |
7733 | dunkaist | 132 | jb .next_irq |
2288 | clevermous | 133 | |
7733 | dunkaist | 134 | inc [ioapic_cur] |
135 | inc edx |
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136 | cmp edx, [ioapic_cnt] |
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137 | jnz .next_ioapic |
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138 | |||
139 | .lapic_init: |
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2288 | clevermous | 140 | call LAPIC_init |
141 | |||
142 | mov [irq_mode], IRQ_APIC |
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143 | |||
144 | mov al, 0x70 |
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145 | out 0x22, al |
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146 | mov al, 1 |
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147 | out 0x23, al |
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148 | |||
149 | call pci_irq_fixup |
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150 | .no_apic: |
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7733 | dunkaist | 151 | pop ebx |
2288 | clevermous | 152 | ret |
153 | |||
154 | ;=========================================================== |
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155 | align 4 |
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156 | LAPIC_init: |
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157 | |||
8120 | dunkaist | 158 | mov eax, [LAPIC_BASE] |
159 | test eax, eax |
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160 | jnz @f |
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9715 | Doczom | 161 | stdcall map_io_mem, [acpi_lapic_base], 0x1000, PG_GLOBAL + PG_NOCACHE + PG_SWR |
2288 | clevermous | 162 | mov [LAPIC_BASE], eax |
8120 | dunkaist | 163 | @@: |
2288 | clevermous | 164 | mov esi, eax |
165 | |||
166 | ; Program Destination Format Register for Flat mode. |
||
167 | mov eax, [esi + APIC_DFR] |
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168 | or eax, 0xf0000000 |
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169 | mov [esi + APIC_DFR], eax |
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170 | |||
171 | ; Program Logical Destination Register. |
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172 | mov eax, [esi + APIC_LDR] |
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173 | ;and eax, 0xff000000 |
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174 | and eax, 0x00ffffff |
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175 | or eax, 0x01000000;!!!!!!!!!!!! |
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176 | mov [esi + APIC_LDR], eax |
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177 | |||
178 | ; Task Priority Register initialization. |
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179 | mov eax, [esi + APIC_TPR] |
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180 | and eax, 0xffffff00 |
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181 | mov [esi + APIC_TPR], eax |
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182 | |||
183 | ; Flush the queue |
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184 | mov edx, 0 |
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185 | .nxt2: |
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186 | mov ecx, 32 |
||
187 | mov eax, [esi + APIC_ISR + edx] |
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188 | .nxt: |
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189 | shr eax, 1 |
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190 | jnc @f |
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191 | mov dword [esi + APIC_EOI], 0; EOI |
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192 | @@: |
||
193 | loop .nxt |
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194 | |||
195 | add edx, 0x10 |
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196 | cmp edx, 0x170 |
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197 | jbe .nxt2 |
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198 | |||
199 | ; Spurious-Interrupt Vector Register initialization. |
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200 | mov eax, [esi + APIC_SVR] |
||
201 | or eax, 0x1ff |
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202 | and eax, 0xfffffdff |
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203 | mov [esi + APIC_SVR], eax |
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204 | |||
205 | ; Initialize LVT LINT0 register. (INTR) |
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206 | mov eax, 0x00700 |
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207 | ; mov eax, 0x10700 |
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208 | mov [esi + APIC_LVT_LINT0], eax |
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209 | |||
210 | ; Initialize LVT LINT1 register. (NMI) |
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211 | mov eax, 0x00400 |
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212 | mov [esi + APIC_LVT_LINT1], eax |
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213 | |||
214 | ; Initialize LVT Error register. |
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215 | mov eax, [esi + APIC_LVT_err] |
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216 | or eax, 0x10000; bit 16 |
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217 | mov [esi + APIC_LVT_err], eax |
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218 | |||
219 | ; LAPIC timer |
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220 | ; pre init |
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221 | mov dword[esi + APIC_timer_div], 1011b; 1 |
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222 | mov dword[esi + APIC_timer_init], 0xffffffff; max val |
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223 | push esi |
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224 | mov esi, 640 ; wait 0.64 sec |
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225 | call delay_ms |
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226 | pop esi |
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227 | mov eax, [esi + APIC_timer_cur]; read current tick couner |
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228 | xor eax, 0xffffffff ; eax = 0xffffffff - eax |
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229 | shr eax, 6 ; eax /= 64; APIC ticks per 0.01 sec |
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230 | |||
231 | ; Start (every 0.01 sec) |
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232 | mov dword[esi + APIC_LVT_timer], 0x30020; periodic int 0x20 |
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233 | mov dword[esi + APIC_timer_init], eax |
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2443 | Serge | 234 | |
235 | .done: |
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2288 | clevermous | 236 | ret |
237 | |||
238 | ;=========================================================== |
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239 | ; IOAPIC implementation |
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240 | align 4 |
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241 | IOAPIC_read: |
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242 | ; in : EAX - IOAPIC register |
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243 | ; out: EAX - readed value |
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244 | push esi |
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7733 | dunkaist | 245 | mov esi, [ioapic_cur] |
9715 | Doczom | 246 | mov esi, [IOAPIC_base + esi*4] |
2288 | clevermous | 247 | mov [esi], eax |
248 | mov eax, [esi + 0x10] |
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249 | pop esi |
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250 | ret |
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251 | |||
252 | align 4 |
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253 | IOAPIC_write: |
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254 | ; in : EAX - IOAPIC register |
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255 | ; EBX - value |
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256 | ; out: none |
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257 | push esi |
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7733 | dunkaist | 258 | mov esi, [ioapic_cur] |
9715 | Doczom | 259 | mov esi, [IOAPIC_base + esi*4] |
2288 | clevermous | 260 | mov [esi], eax |
261 | mov [esi + 0x10], ebx |
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262 | pop esi |
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263 | ret |
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264 | ;=========================================================== |
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265 | ; Remap all IRQ to 0x20+ Vectors |
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266 | ; IRQ0 to vector 0x20, IRQ1 to vector 0x21.... |
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267 | align 4 |
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268 | PIC_init: |
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7733 | dunkaist | 269 | mov [IRQ_COUNT], 16 |
2288 | clevermous | 270 | cli |
271 | mov al, 0x11 ; icw4, edge triggered |
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272 | out 0x20, al |
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273 | out 0xA0, al |
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274 | |||
275 | mov al, 0x20 ; generate 0x20 + |
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276 | out 0x21, al |
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277 | mov al, 0x28 ; generate 0x28 + |
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278 | out 0xA1, al |
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279 | |||
280 | mov al, 0x04 ; slave at irq2 |
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281 | out 0x21, al |
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282 | mov al, 0x02 ; at irq9 |
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283 | out 0xA1, al |
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284 | |||
285 | mov al, 0x01 ; 8086 mode |
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286 | out 0x21, al |
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287 | out 0xA1, al |
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288 | |||
289 | call IRQ_mask_all |
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290 | ret |
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291 | |||
292 | ; ----------------------------------------- |
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293 | ; TIMER SET TO 1/100 S |
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294 | align 4 |
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295 | PIT_init: |
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296 | mov al, 0x34 ; set to 100Hz |
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297 | out 0x43, al |
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298 | mov al, 0x9b ; lsb 1193180 / 1193 |
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299 | out 0x40, al |
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300 | mov al, 0x2e ; msb |
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301 | out 0x40, al |
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302 | ret |
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303 | |||
304 | ; ----------------------------------------- |
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305 | align 4 |
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306 | unmask_timer: |
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307 | cmp [irq_mode], IRQ_APIC |
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308 | je @f |
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309 | |||
310 | stdcall enable_irq, 0 |
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311 | ret |
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312 | @@: |
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313 | ; use PIT |
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314 | ; in some systems PIT no connected to IOAPIC |
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315 | ; mov eax, 0x14 |
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316 | ; call IOAPIC_read |
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317 | ; mov ah, 0x09 ; Delivery Mode: Lowest Priority, Destination Mode: Logical |
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318 | ; mov al, 0x20 |
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319 | ; or eax, 0x10000 ; Mask Interrupt |
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320 | ; mov ebx, eax |
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321 | ; mov eax, 0x14 |
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322 | ; call IOAPIC_write |
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323 | ; stdcall enable_irq, 2 |
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324 | ; ret |
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325 | |||
326 | ; use LAPIC timer |
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327 | mov esi, [LAPIC_BASE] |
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328 | mov eax, [esi + APIC_LVT_timer] |
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329 | and eax, 0xfffeffff |
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330 | mov [esi + APIC_LVT_timer], eax |
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331 | ret |
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332 | |||
333 | ; ----------------------------------------- |
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334 | ; Disable all IRQ |
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335 | align 4 |
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336 | IRQ_mask_all: |
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337 | cmp [irq_mode], IRQ_APIC |
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338 | je .APIC |
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339 | |||
340 | mov al, 0xFF |
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341 | out 0x21, al |
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342 | out 0xA1, al |
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343 | mov ecx, 0x1000 |
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344 | ret |
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345 | .APIC: |
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7733 | dunkaist | 346 | cmp [IOAPIC_base], 0 |
347 | jz .done |
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348 | mov [ioapic_cur], 0 |
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349 | .next_ioapic: |
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350 | mov edx, [ioapic_cur] |
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9715 | Doczom | 351 | mov ecx, [IRQ_COUNT + edx*4] |
2288 | clevermous | 352 | mov eax, 0x10 |
353 | @@: |
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354 | mov ebx, eax |
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355 | call IOAPIC_read |
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356 | or eax, 0x10000; bit 16 |
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357 | xchg eax, ebx |
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358 | call IOAPIC_write |
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359 | inc eax |
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360 | inc eax |
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361 | loop @b |
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7733 | dunkaist | 362 | |
363 | inc [ioapic_cur] |
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364 | inc edx |
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365 | cmp edx, [ioapic_cnt] |
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366 | jnz .next_ioapic |
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367 | .done: |
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2288 | clevermous | 368 | ret |
369 | |||
370 | ; ----------------------------------------- |
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371 | ; End Of Interrupt |
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372 | ; cl - IRQ number |
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373 | align 4 |
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374 | irq_eoi: ; __fastcall |
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375 | cmp [irq_mode], IRQ_APIC |
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376 | je .APIC |
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377 | |||
378 | cmp cl, 8 |
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379 | mov al, 0x20 |
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380 | jb @f |
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381 | out 0xa0, al |
||
382 | @@: |
||
383 | out 0x20, al |
||
384 | ret |
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385 | |||
386 | .APIC: |
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387 | mov eax, [LAPIC_BASE] |
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388 | mov dword [eax + APIC_EOI], 0; EOI |
||
389 | ret |
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390 | |||
391 | ; ----------------------------------------- |
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392 | ; from dll.inc |
||
393 | align 4 |
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394 | proc enable_irq stdcall, irq_line:dword |
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395 | mov ebx, [irq_line] |
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396 | cmp [irq_mode], IRQ_APIC |
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397 | je .APIC |
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398 | |||
399 | mov edx, 0x21 |
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400 | cmp ebx, 8 |
||
401 | jb @F |
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402 | |||
403 | mov edx, 0xA1 |
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404 | sub ebx, 8 |
||
405 | @@: |
||
406 | in al, dx |
||
407 | btr eax, ebx |
||
408 | out dx, al |
||
409 | ret |
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410 | .APIC: |
||
7733 | dunkaist | 411 | push [ioapic_cur] |
412 | xor eax, eax |
||
413 | .next_ioapic: |
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414 | mov ecx, [ioapic_gsi_base+eax*4] |
||
415 | add ecx, [IRQ_COUNT+eax*4] |
||
416 | cmp ebx, ecx |
||
417 | jb .found |
||
418 | inc eax |
||
419 | cmp eax, [ioapic_cnt] |
||
420 | jnz .next_ioapic |
||
421 | jmp .done |
||
422 | .found: |
||
423 | mov [ioapic_cur], eax |
||
424 | sub ebx, [ioapic_gsi_base+eax*4] |
||
2288 | clevermous | 425 | shl ebx, 1 |
426 | add ebx, 0x10 |
||
427 | mov eax, ebx |
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428 | call IOAPIC_read |
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429 | and eax, 0xfffeffff; bit 16 |
||
430 | xchg eax, ebx |
||
431 | call IOAPIC_write |
||
7733 | dunkaist | 432 | .done: |
433 | pop [ioapic_cur] |
||
2288 | clevermous | 434 | ret |
435 | endp |
||
436 | |||
3320 | clevermous | 437 | proc disable_irq stdcall, irq_line:dword |
438 | mov ebx, [irq_line] |
||
439 | cmp [irq_mode], IRQ_APIC |
||
440 | je .APIC |
||
441 | |||
442 | mov edx, 0x21 |
||
443 | cmp ebx, 8 |
||
444 | jb @F |
||
445 | |||
446 | mov edx, 0xA1 |
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447 | sub ebx, 8 |
||
448 | @@: |
||
449 | in al, dx |
||
450 | bts eax, ebx |
||
451 | out dx, al |
||
452 | ret |
||
453 | .APIC: |
||
7733 | dunkaist | 454 | push [ioapic_cur] |
455 | xor eax, eax |
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456 | .next_ioapic: |
||
9715 | Doczom | 457 | mov ecx, [ioapic_gsi_base + eax*4] |
458 | add ecx, [IRQ_COUNT + eax*4] |
||
7733 | dunkaist | 459 | cmp ebx, ecx |
460 | jae .found |
||
461 | inc eax |
||
462 | cmp eax, [ioapic_cnt] |
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463 | jnz .next_ioapic |
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464 | jmp .done |
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465 | .found: |
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466 | mov [ioapic_cur], eax |
||
467 | sub ebx, [ioapic_gsi_base+eax*4] |
||
3320 | clevermous | 468 | shl ebx, 1 |
469 | add ebx, 0x10 |
||
470 | mov eax, ebx |
||
471 | call IOAPIC_read |
||
472 | or eax, 0x10000; bit 16 |
||
473 | xchg eax, ebx |
||
474 | call IOAPIC_write |
||
7733 | dunkaist | 475 | .done: |
476 | pop [ioapic_cur] |
||
3320 | clevermous | 477 | ret |
478 | endp |
||
479 | |||
2288 | clevermous | 480 | align 4 |
481 | pci_irq_fixup: |
||
482 | |||
483 | push ebp |
||
484 | |||
485 | mov esi, [acpi_dev_data] |
||
486 | mov ebx, [acpi_dev_size] |
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487 | |||
9715 | Doczom | 488 | lea edi, [esi + ebx] |
2288 | clevermous | 489 | |
490 | .iterate: |
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491 | |||
492 | cmp esi, edi |
||
493 | jae .done |
||
494 | |||
495 | mov eax, [esi] |
||
496 | |||
497 | cmp eax, -1 |
||
498 | je .done |
||
499 | |||
500 | movzx ebx, al |
||
501 | movzx ebp, ah |
||
502 | |||
503 | stdcall pci_read32, ebp, ebx, 0 |
||
504 | |||
505 | cmp eax, [esi+4] |
||
506 | jne .skip |
||
507 | |||
508 | mov eax, [esi+8] |
||
509 | stdcall pci_write8, ebp, ebx, 0x3C, eax |
||
510 | .skip: |
||
511 | add esi, 16 |
||
512 | jmp .iterate |
||
513 | |||
514 | .done: |
||
515 | .fail: |
||
516 | pop ebp |
||
517 | ret |
||
518 | |||
5787 | serge | 519 | align 4 |
520 | get_clock_ns: |
||
2288 | clevermous | 521 | |
5787 | serge | 522 | mov eax, [hpet_base] |
523 | test eax, eax |
||
524 | jz .old_tics |
||
2288 | clevermous | 525 | |
5787 | serge | 526 | push ebx |
5791 | serge | 527 | push esi |
5787 | serge | 528 | pushfd |
529 | cli |
||
2288 | clevermous | 530 | |
5787 | serge | 531 | mov ebx, eax |
532 | @@: |
||
533 | mov edx, [ebx+0xF4] |
||
534 | mov eax, [ebx+0xF0] |
||
535 | mov ecx, [ebx+0xF4] |
||
536 | cmp ecx, edx |
||
5791 | serge | 537 | jne @B |
6941 | serge | 538 | popfd |
2288 | clevermous | 539 | |
6942 | serge | 540 | ;96-bit arithmetic |
541 | ;ebx - low dword |
||
542 | ;esi - medium dword |
||
543 | ;edx - high dword |
||
544 | |||
5791 | serge | 545 | mul [hpet_period] |
546 | mov ebx, eax |
||
547 | mov esi, edx |
||
548 | |||
549 | mov eax, ecx |
||
550 | mul [hpet_period] |
||
6942 | serge | 551 | add esi, eax |
552 | adc edx, 0 |
||
6941 | serge | 553 | mov eax, ebx |
6942 | serge | 554 | mov ebx, esi |
555 | shrd eax, ebx, 10 |
||
556 | shrd esi, edx, 10 |
||
557 | mov edx, esi |
||
5791 | serge | 558 | |
559 | pop esi |
||
5787 | serge | 560 | pop ebx |
561 | ret |
||
562 | |||
563 | .old_tics: |
||
564 | mov eax, [timer_ticks] |
||
565 | mov edx, 10000000 |
||
566 | mul edx |
||
567 | ret |