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2 | ;; ;; |
2 | ;; ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
5 | ;; ;; |
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
7 | 7 | ||
8 | $Revision: 2288 $ |
8 | $Revision: 2455 $ |
9 | 9 | ||
10 | 10 | ||
11 | ;********************************************************** |
11 | ;********************************************************** |
12 | ; Íåïîñðåäñòâåííàÿ ðàáîòà ñ êîíòðîëëåðîì ãèáêîãî äèñêà |
12 | ; Íåïîñðåäñòâåííàÿ ðàáîòà ñ êîíòðîëëåðîì ãèáêîãî äèñêà |
13 | ;********************************************************** |
13 | ;********************************************************** |
14 | ; Àâòîð èñõîäíîãî òåêñòà Êóëàêîâ Âëàäèìèð Ãåííàäüåâè÷. |
14 | ; Àâòîð èñõîäíîãî òåêñòà Êóëàêîâ Âëàäèìèð Ãåííàäüåâè÷. |
15 | ; Àäàïòàöèÿ è äîðàáîòêà Mario79 |
15 | ; Àäàïòàöèÿ è äîðàáîòêà Mario79 |
16 | 16 | ||
17 | ;give_back_application_data: ; ïåðåñëàòü ïðèëîæåíèþ |
17 | ;give_back_application_data: ; ïåðåñëàòü ïðèëîæåíèþ |
18 | ; mov edi,[TASK_BASE] |
18 | ; mov edi,[TASK_BASE] |
19 | ; mov edi,[edi+TASKDATA.mem_start] |
19 | ; mov edi,[edi+TASKDATA.mem_start] |
20 | ; add edi,ecx |
20 | ; add edi,ecx |
21 | give_back_application_data_1: |
21 | give_back_application_data_1: |
22 | mov esi, FDD_BUFF;FDD_DataBuffer ;0x40000 |
22 | mov esi, FDD_BUFF;FDD_DataBuffer ;0x40000 |
23 | xor ecx, ecx |
23 | xor ecx, ecx |
24 | mov cx, 128 |
24 | mov cx, 128 |
25 | cld |
25 | cld |
26 | rep movsd |
26 | rep movsd |
27 | ret |
27 | ret |
28 | 28 | ||
29 | ;take_data_from_application: ; âçÿòü èç ïðèëîæåíè |
29 | ;take_data_from_application: ; âçÿòü èç ïðèëîæåíè |
30 | ; mov esi,[TASK_BASE] |
30 | ; mov esi,[TASK_BASE] |
31 | ; mov esi,[esi+TASKDATA.mem_start] |
31 | ; mov esi,[esi+TASKDATA.mem_start] |
32 | ; add esi,ecx |
32 | ; add esi,ecx |
33 | take_data_from_application_1: |
33 | take_data_from_application_1: |
34 | mov edi, FDD_BUFF;FDD_DataBuffer ;0x40000 |
34 | mov edi, FDD_BUFF;FDD_DataBuffer ;0x40000 |
35 | xor ecx, ecx |
35 | xor ecx, ecx |
36 | mov cx, 128 |
36 | mov cx, 128 |
37 | cld |
37 | cld |
38 | rep movsd |
38 | rep movsd |
39 | ret |
39 | ret |
40 | 40 | ||
41 | ; Êîäû çàâåðøåíèÿ îïåðàöèè ñ êîíòðîëëåðîì (FDC_Status) |
41 | ; Êîäû çàâåðøåíèÿ îïåðàöèè ñ êîíòðîëëåðîì (FDC_Status) |
42 | FDC_Normal equ 0 ;íîðìàëüíîå çàâåðøåíèå |
42 | FDC_Normal equ 0 ;íîðìàëüíîå çàâåðøåíèå |
43 | FDC_TimeOut equ 1 ;îøèáêà òàéì-àóòà |
43 | FDC_TimeOut equ 1 ;îøèáêà òàéì-àóòà |
44 | FDC_DiskNotFound equ 2 ;â äèñêîâîäå íåò äèñêà |
44 | FDC_DiskNotFound equ 2 ;â äèñêîâîäå íåò äèñêà |
45 | FDC_TrackNotFound equ 3 ;äîðîæêà íå íàéäåíà |
45 | FDC_TrackNotFound equ 3 ;äîðîæêà íå íàéäåíà |
46 | FDC_SectorNotFound equ 4 ;ñåêòîð íå íàéäåí |
46 | FDC_SectorNotFound equ 4 ;ñåêòîð íå íàéäåí |
47 | 47 | ||
48 | ; Ìàêñèìàëüíûå çíà÷åíèÿ êîîðäèíàò ñåêòîðà (çàäàííûå |
48 | ; Ìàêñèìàëüíûå çíà÷åíèÿ êîîðäèíàò ñåêòîðà (çàäàííûå |
49 | ; çíà÷åíèÿ ñîîòâåòñòâóþò ïàðàìåòðàì ñòàíäàðòíîãî |
49 | ; çíà÷åíèÿ ñîîòâåòñòâóþò ïàðàìåòðàì ñòàíäàðòíîãî |
50 | ; òðåõäþéìîâîãî ãèáêîãî äèñêà îáúåìîì 1,44 Ìá) |
50 | ; òðåõäþéìîâîãî ãèáêîãî äèñêà îáúåìîì 1,44 Ìá) |
51 | MAX_Track equ 79 |
51 | MAX_Track equ 79 |
52 | MAX_Head equ 1 |
52 | MAX_Head equ 1 |
53 | MAX_Sector equ 18 |
53 | MAX_Sector equ 18 |
54 | 54 | ||
55 | uglobal |
55 | uglobal |
56 | ; Ñ÷åò÷èê òèêîâ òàéìåðà |
56 | ; Ñ÷åò÷èê òèêîâ òàéìåðà |
57 | TickCounter dd ? |
57 | TickCounter dd ? |
58 | ; Êîä çàâåðøåíèÿ îïåðàöèè ñ êîíòðîëëåðîì ÍÃÌÄ |
58 | ; Êîä çàâåðøåíèÿ îïåðàöèè ñ êîíòðîëëåðîì ÍÃÌÄ |
59 | FDC_Status DB ? |
59 | FDC_Status DB ? |
60 | ; Ôëàã ïðåðûâàíèÿ îò ÍÃÌÄ |
60 | ; Ôëàã ïðåðûâàíèÿ îò ÍÃÌÄ |
61 | FDD_IntFlag DB ? |
61 | FDD_IntFlag DB ? |
62 | ; Ìîìåíò íà÷àëà ïîñëåäíåé îïåðàöèè ñ ÍÃÌÄ |
62 | ; Ìîìåíò íà÷àëà ïîñëåäíåé îïåðàöèè ñ ÍÃÌÄ |
63 | FDD_Time DD ? |
63 | FDD_Time DD ? |
64 | ; Íîìåð äèñêîâîäà |
64 | ; Íîìåð äèñêîâîäà |
65 | FDD_Type db 0 |
65 | FDD_Type db 0 |
66 | ; Êîîðäèíàòû ñåêòîðà |
66 | ; Êîîðäèíàòû ñåêòîðà |
67 | FDD_Track DB ? |
67 | FDD_Track DB ? |
68 | FDD_Head DB ? |
68 | FDD_Head DB ? |
69 | FDD_Sector DB ? |
69 | FDD_Sector DB ? |
70 | 70 | ||
71 | ; Áëîê ðåçóëüòàòà îïåðàöèè |
71 | ; Áëîê ðåçóëüòàòà îïåðàöèè |
72 | FDC_ST0 DB ? |
72 | FDC_ST0 DB ? |
73 | FDC_ST1 DB ? |
73 | FDC_ST1 DB ? |
74 | FDC_ST2 DB ? |
74 | FDC_ST2 DB ? |
75 | FDC_C DB ? |
75 | FDC_C DB ? |
76 | FDC_H DB ? |
76 | FDC_H DB ? |
77 | FDC_R DB ? |
77 | FDC_R DB ? |
78 | FDC_N DB ? |
78 | FDC_N DB ? |
79 | ; Ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíè |
79 | ; Ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíè |
80 | ReadRepCounter DB ? |
80 | ReadRepCounter DB ? |
81 | ; Ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè |
81 | ; Ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè |
82 | RecalRepCounter DB ? |
82 | RecalRepCounter DB ? |
83 | endg |
83 | endg |
84 | ; Îáëàñòü ïàìÿòè äëÿ õðàíåíèÿ ïðî÷èòàííîãî ñåêòîðà |
84 | ; Îáëàñòü ïàìÿòè äëÿ õðàíåíèÿ ïðî÷èòàííîãî ñåêòîðà |
85 | ;FDD_DataBuffer: times 512 db 0 ;DB 512 DUP (?) |
85 | ;FDD_DataBuffer: times 512 db 0 ;DB 512 DUP (?) |
86 | fdd_motor_status db 0 |
86 | fdd_motor_status db 0 |
87 | timer_fdd_motor dd 0 |
87 | timer_fdd_motor dd 0 |
88 | 88 | ||
89 | ;************************************* |
89 | ;************************************* |
90 | ;* ÈÍÈÖÈÀËÈÇÀÖÈß ÐÅÆÈÌÀ ÏÄÏ ÄËß ÍÃÌÄ * |
90 | ;* ÈÍÈÖÈÀËÈÇÀÖÈß ÐÅÆÈÌÀ ÏÄÏ ÄËß ÍÃÌÄ * |
91 | ;************************************* |
91 | ;************************************* |
92 | Init_FDC_DMA: |
92 | Init_FDC_DMA: |
93 | pushad |
93 | pushad |
94 | mov al, 0 |
94 | mov al, 0 |
95 | out 0x0c, al; reset the flip-flop to a known state. |
95 | out 0x0c, al; reset the flip-flop to a known state. |
96 | mov al, 6 ; mask channel 2 so we can reprogram it. |
96 | mov al, 6 ; mask channel 2 so we can reprogram it. |
97 | out 0x0a, al |
97 | out 0x0a, al |
98 | mov al, [dmamode]; 0x46 -> Read from floppy - 0x4A Write to floppy |
98 | mov al, [dmamode]; 0x46 -> Read from floppy - 0x4A Write to floppy |
99 | out 0x0b, al |
99 | out 0x0b, al |
100 | mov al, 0 |
100 | mov al, 0 |
101 | out 0x0c, al; reset the flip-flop to a known state. |
101 | out 0x0c, al; reset the flip-flop to a known state. |
102 | mov eax, 0xD000 |
102 | mov eax, 0xD000 |
103 | out 0x04, al; set the channel 2 starting address to 0 |
103 | out 0x04, al; set the channel 2 starting address to 0 |
104 | shr eax, 8 |
104 | shr eax, 8 |
105 | out 0x04, al |
105 | out 0x04, al |
106 | shr eax, 8 |
106 | shr eax, 8 |
107 | out 0x81, al |
107 | out 0x81, al |
108 | mov al, 0 |
108 | mov al, 0 |
109 | out 0x0c, al; reset flip-flop |
109 | out 0x0c, al; reset flip-flop |
110 | mov al, 0xff;set count (actual size -1) |
110 | mov al, 0xff;set count (actual size -1) |
111 | out 0x5, al |
111 | out 0x5, al |
112 | mov al, 0x1;[dmasize] ;(0x1ff = 511 / 0x23ff =9215) |
112 | mov al, 0x1;[dmasize] ;(0x1ff = 511 / 0x23ff =9215) |
113 | out 0x5, al |
113 | out 0x5, al |
114 | mov al, 2 |
114 | mov al, 2 |
115 | out 0xa, al |
115 | out 0xa, al |
116 | popad |
116 | popad |
117 | ret |
117 | ret |
118 | 118 | ||
119 | ;*********************************** |
119 | ;*********************************** |
120 | ;* ÇÀÏÈÑÀÒÜ ÁÀÉÒ Â ÏÎÐÒ ÄÀÍÍÛÕ FDC * |
120 | ;* ÇÀÏÈÑÀÒÜ ÁÀÉÒ Â ÏÎÐÒ ÄÀÍÍÛÕ FDC * |
121 | ;* Ïàðàìåòðû: * |
121 | ;* Ïàðàìåòðû: * |
122 | ;* AL - âûâîäèìûé áàéò. * |
122 | ;* AL - âûâîäèìûé áàéò. * |
123 | ;*********************************** |
123 | ;*********************************** |
124 | FDCDataOutput: |
124 | FDCDataOutput: |
125 | ; pusha |
125 | ; pusha |
126 | push eax ecx edx |
126 | push eax ecx edx |
127 | mov AH, AL ;çàïîìíèòü áàéò â AH |
127 | mov AH, AL ;çàïîìíèòü áàéò â AH |
128 | ; Ñáðîñèòü ïåðåìåííóþ ñîñòîÿíèÿ êîíòðîëëåðà |
128 | ; Ñáðîñèòü ïåðåìåííóþ ñîñòîÿíèÿ êîíòðîëëåðà |
129 | mov [FDC_Status], FDC_Normal |
129 | mov [FDC_Status], FDC_Normal |
130 | ; Ïðîâåðèòü ãîòîâíîñòü êîíòðîëëåðà ê ïðèåìó äàííûõ |
130 | ; Ïðîâåðèòü ãîòîâíîñòü êîíòðîëëåðà ê ïðèåìó äàííûõ |
131 | mov DX, 3F4h ;(ïîðò ñîñòîÿíèÿ FDC) |
131 | mov DX, 3F4h ;(ïîðò ñîñòîÿíèÿ FDC) |
132 | mov ecx, 0x10000 ;óñòàíîâèòü ñ÷åò÷èê òàéì-àóòà |
132 | mov ecx, 0x10000 ;óñòàíîâèòü ñ÷åò÷èê òàéì-àóòà |
133 | @@TestRS: |
133 | @@TestRS: |
134 | in AL, DX ;ïðî÷èòàòü ðåãèñòð RS |
134 | in AL, DX ;ïðî÷èòàòü ðåãèñòð RS |
135 | and AL, 0C0h ;âûäåëèòü ðàçðÿäû 6 è 7 |
135 | and AL, 0C0h ;âûäåëèòü ðàçðÿäû 6 è 7 |
136 | cmp AL, 80h ;ïðîâåðèòü ðàçðÿäû 6 è 7 |
136 | cmp AL, 80h ;ïðîâåðèòü ðàçðÿäû 6 è 7 |
137 | je @@OutByteToFDC |
137 | je @@OutByteToFDC |
138 | loop @@TestRS |
138 | loop @@TestRS |
139 | ; Îøèáêà òàéì-àóòà |
139 | ; Îøèáêà òàéì-àóòà |
140 | mov [FDC_Status], FDC_TimeOut |
140 | mov [FDC_Status], FDC_TimeOut |
141 | jmp @@End_5 |
141 | jmp @@End_5 |
142 | ; Âûâåñòè áàéò â ïîðò äàííûõ |
142 | ; Âûâåñòè áàéò â ïîðò äàííûõ |
143 | @@OutByteToFDC: |
143 | @@OutByteToFDC: |
144 | inc DX |
144 | inc DX |
145 | mov AL, AH |
145 | mov AL, AH |
146 | out DX, AL |
146 | out DX, AL |
147 | @@End_5: |
147 | @@End_5: |
148 | ; popa |
148 | ; popa |
149 | pop edx ecx eax |
149 | pop edx ecx eax |
150 | ret |
150 | ret |
151 | 151 | ||
152 | ;****************************************** |
152 | ;****************************************** |
153 | ;* ÏÐÎ×ÈÒÀÒÜ ÁÀÉÒ ÈÇ ÏÎÐÒÀ ÄÀÍÍÛÕ FDC * |
153 | ;* ÏÐÎ×ÈÒÀÒÜ ÁÀÉÒ ÈÇ ÏÎÐÒÀ ÄÀÍÍÛÕ FDC * |
154 | ;* Ïðîöåäóðà íå èìååò âõîäíûõ ïàðàìåòðîâ. * |
154 | ;* Ïðîöåäóðà íå èìååò âõîäíûõ ïàðàìåòðîâ. * |
155 | ;* Âûõîäíûå äàííûå: * |
155 | ;* Âûõîäíûå äàííûå: * |
156 | ;* AL - ñ÷èòàííûé áàéò. * |
156 | ;* AL - ñ÷èòàííûé áàéò. * |
157 | ;****************************************** |
157 | ;****************************************** |
158 | FDCDataInput: |
158 | FDCDataInput: |
159 | push ECX |
159 | push ECX |
160 | push DX |
160 | push DX |
161 | ; Ñáðîñèòü ïåðåìåííóþ ñîñòîÿíèÿ êîíòðîëëåðà |
161 | ; Ñáðîñèòü ïåðåìåííóþ ñîñòîÿíèÿ êîíòðîëëåðà |
162 | mov [FDC_Status], FDC_Normal |
162 | mov [FDC_Status], FDC_Normal |
163 | ; Ïðîâåðèòü ãîòîâíîñòü êîíòðîëëåðà ê ïåðåäà÷å äàííûõ |
163 | ; Ïðîâåðèòü ãîòîâíîñòü êîíòðîëëåðà ê ïåðåäà÷å äàííûõ |
164 | mov DX, 3F4h ;(ïîðò ñîñòîÿíèÿ FDC) |
164 | mov DX, 3F4h ;(ïîðò ñîñòîÿíèÿ FDC) |
165 | xor CX, CX ;óñòàíîâèòü ñ÷åò÷èê òàéì-àóòà |
165 | xor CX, CX ;óñòàíîâèòü ñ÷åò÷èê òàéì-àóòà |
166 | @@TestRS_1: |
166 | @@TestRS_1: |
167 | in AL, DX ;ïðî÷èòàòü ðåãèñòð RS |
167 | in AL, DX ;ïðî÷èòàòü ðåãèñòð RS |
168 | and AL, 0C0h ;âûäëèòü ðàçðÿäû 6 è 7 |
168 | and AL, 0C0h ;âûäëèòü ðàçðÿäû 6 è 7 |
169 | cmp AL, 0C0h ;ïðîâåðèòü ðàçðÿäû 6 è 7 |
169 | cmp AL, 0C0h ;ïðîâåðèòü ðàçðÿäû 6 è 7 |
170 | je @@GetByteFromFDC |
170 | je @@GetByteFromFDC |
171 | loop @@TestRS_1 |
171 | loop @@TestRS_1 |
172 | ; Îøèáêà òàéì-àóòà |
172 | ; Îøèáêà òàéì-àóòà |
173 | mov [FDC_Status], FDC_TimeOut |
173 | mov [FDC_Status], FDC_TimeOut |
174 | jmp @@End_6 |
174 | jmp @@End_6 |
175 | ; Ââåñòè áàéò èç ïîðòà äàííûõ |
175 | ; Ââåñòè áàéò èç ïîðòà äàííûõ |
176 | @@GetByteFromFDC: |
176 | @@GetByteFromFDC: |
177 | inc DX |
177 | inc DX |
178 | in AL, DX |
178 | in AL, DX |
179 | @@End_6: |
179 | @@End_6: |
180 | pop DX |
180 | pop DX |
181 | pop ECX |
181 | pop ECX |
182 | ret |
182 | ret |
183 | 183 | ||
184 | ;********************************************* |
184 | ;********************************************* |
185 | ;* ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈß ÎÒ ÊÎÍÒÐÎËËÅÐÀ ÍÃÌÄ * |
185 | ;* ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈß ÎÒ ÊÎÍÒÐÎËËÅÐÀ ÍÃÌÄ * |
186 | ;********************************************* |
186 | ;********************************************* |
187 | FDCInterrupt: |
187 | FDCInterrupt: |
188 | ; Óñòàíîâèòü ôëàã ïðåðûâàíè |
188 | ; Óñòàíîâèòü ôëàã ïðåðûâàíè |
189 | mov [FDD_IntFlag], 1 |
189 | mov [FDD_IntFlag], 1 |
190 | ret |
190 | ret |
191 | 191 | ||
192 | 192 | ||
193 | ;****************************************** |
193 | ;****************************************** |
194 | ;* ÓÑÒÀÍÎÂÈÒÜ ÍÎÂÛÉ ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈÉ * |
194 | ;* ÓÑÒÀÍÎÂÈÒÜ ÍÎÂÛÉ ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈÉ * |
195 | ;* ÍÃÌÄ * |
195 | ;* ÍÃÌÄ * |
196 | ;****************************************** |
196 | ;****************************************** |
197 | SetUserInterrupts: |
197 | SetUserInterrupts: |
198 | mov [fdc_irq_func], FDCInterrupt |
198 | mov [fdc_irq_func], FDCInterrupt |
199 | ret |
199 | ret |
200 | 200 | ||
201 | ;******************************************* |
201 | ;******************************************* |
202 | ;* ÎÆÈÄÀÍÈÅ ÏÐÅÐÛÂÀÍÈß ÎÒ ÊÎÍÒÐÎËËÅÐÀ ÍÃÌÄ * |
202 | ;* ÎÆÈÄÀÍÈÅ ÏÐÅÐÛÂÀÍÈß ÎÒ ÊÎÍÒÐÎËËÅÐÀ ÍÃÌÄ * |
203 | ;******************************************* |
203 | ;******************************************* |
204 | WaitFDCInterrupt: |
204 | WaitFDCInterrupt: |
205 | pusha |
205 | pusha |
206 | ; Ñáðîñèòü áàéò ñîñòîÿíèÿ îïåðàöèè |
206 | ; Ñáðîñèòü áàéò ñîñòîÿíèÿ îïåðàöèè |
207 | mov [FDC_Status], FDC_Normal |
207 | mov [FDC_Status], FDC_Normal |
208 | ; Ñáðîñèòü ôëàã ïðåðûâàíè |
208 | ; Ñáðîñèòü ôëàã ïðåðûâàíè |
209 | mov [FDD_IntFlag], 0 |
209 | mov [FDD_IntFlag], 0 |
210 | ; Îáíóëèòü ñ÷åò÷èê òèêîâ |
210 | ; Îáíóëèòü ñ÷åò÷èê òèêîâ |
211 | mov eax, [timer_ticks] |
211 | mov eax, [timer_ticks] |
212 | mov [TickCounter], eax |
212 | mov [TickCounter], eax |
213 | ; Îæèäàòü óñòàíîâêè ôëàãà ïðåðûâàíèÿ ÍÃÌÄ |
213 | ; Îæèäàòü óñòàíîâêè ôëàãà ïðåðûâàíèÿ ÍÃÌÄ |
214 | @@TestRS_2: |
214 | @@TestRS_2: |
215 | cmp [FDD_IntFlag], 0 |
215 | cmp [FDD_IntFlag], 0 |
216 | jnz @@End_7 ;ïðåðûâàíèå ïðîèçîøëî |
216 | jnz @@End_7 ;ïðåðûâàíèå ïðîèçîøëî |
217 | call change_task |
217 | call change_task |
218 | mov eax, [timer_ticks] |
218 | mov eax, [timer_ticks] |
219 | sub eax, [TickCounter] |
219 | sub eax, [TickCounter] |
220 | cmp eax, 50 ;25 ;5 ;îæèäàòü 5 òèêîâ |
220 | cmp eax, 50 ;25 ;5 ;îæèäàòü 5 òèêîâ |
221 | jb @@TestRS_2 |
221 | jb @@TestRS_2 |
222 | ; jl @@TestRS_2 |
222 | ; jl @@TestRS_2 |
223 | ; Îøèáêà òàéì-àóòà |
223 | ; Îøèáêà òàéì-àóòà |
224 | mov [FDC_Status], FDC_TimeOut |
224 | mov [FDC_Status], FDC_TimeOut |
225 | ; mov [flp_status],0 |
225 | ; mov [flp_status],0 |
226 | @@End_7: |
226 | @@End_7: |
227 | popa |
227 | popa |
228 | ret |
228 | ret |
229 | 229 | ||
230 | ;********************************* |
230 | ;********************************* |
231 | ;* ÂÊËÞ×ÈÒÜ ÌÎÒÎÐ ÄÈÑÊÎÂÎÄÀ "A:" * |
231 | ;* ÂÊËÞ×ÈÒÜ ÌÎÒÎÐ ÄÈÑÊÎÂÎÄÀ "A:" * |
232 | ;********************************* |
232 | ;********************************* |
233 | FDDMotorON: |
233 | FDDMotorON: |
234 | pusha |
234 | pusha |
235 | ; cmp [fdd_motor_status],1 |
235 | ; cmp [fdd_motor_status],1 |
236 | ; je fdd_motor_on |
236 | ; je fdd_motor_on |
237 | mov al, [flp_number] |
237 | mov al, [flp_number] |
238 | cmp [fdd_motor_status], al |
238 | cmp [fdd_motor_status], al |
239 | je fdd_motor_on |
239 | je fdd_motor_on |
240 | ; Ïðîèçâåñòè ñáðîñ êîíòðîëëåðà ÍÃÌÄ |
240 | ; Ïðîèçâåñòè ñáðîñ êîíòðîëëåðà ÍÃÌÄ |
241 | mov DX, 3F2h;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè |
241 | mov DX, 3F2h;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè |
242 | mov AL, 0 |
242 | mov AL, 0 |
243 | out DX, AL |
243 | out DX, AL |
244 | ; Âûáðàòü è âêëþ÷èòü ìîòîð äèñêîâîäà |
244 | ; Âûáðàòü è âêëþ÷èòü ìîòîð äèñêîâîäà |
245 | cmp [flp_number], 1 |
245 | cmp [flp_number], 1 |
246 | jne FDDMotorON_B |
246 | jne FDDMotorON_B |
247 | ; call FDDMotorOFF_B |
247 | ; call FDDMotorOFF_B |
248 | mov AL, 1Ch ; Floppy A |
248 | mov AL, 1Ch ; Floppy A |
249 | jmp FDDMotorON_1 |
249 | jmp FDDMotorON_1 |
250 | FDDMotorON_B: |
250 | FDDMotorON_B: |
251 | ; call FDDMotorOFF_A |
251 | ; call FDDMotorOFF_A |
252 | mov AL, 2Dh ; Floppy B |
252 | mov AL, 2Dh ; Floppy B |
253 | FDDMotorON_1: |
253 | FDDMotorON_1: |
254 | out DX, AL |
254 | out DX, AL |
255 | ; Îáíóëèòü ñ÷åò÷èê òèêîâ |
255 | ; Îáíóëèòü ñ÷åò÷èê òèêîâ |
256 | mov eax, [timer_ticks] |
256 | mov eax, [timer_ticks] |
257 | mov [TickCounter], eax |
257 | mov [TickCounter], eax |
258 | ; Îæèäàòü 0,5 ñ |
258 | ; Îæèäàòü 0,5 ñ |
259 | @@dT: |
259 | @@dT: |
260 | call change_task |
260 | call change_task |
261 | mov eax, [timer_ticks] |
261 | mov eax, [timer_ticks] |
262 | sub eax, [TickCounter] |
262 | sub eax, [TickCounter] |
263 | cmp eax, 50 ;10 |
263 | cmp eax, 50 ;10 |
264 | jb @@dT |
264 | jb @@dT |
265 | cmp [flp_number], 1 |
265 | cmp [flp_number], 1 |
266 | jne fdd_motor_on_B |
266 | jne fdd_motor_on_B |
267 | mov [fdd_motor_status], 1 |
267 | mov [fdd_motor_status], 1 |
268 | jmp fdd_motor_on |
268 | jmp fdd_motor_on |
269 | fdd_motor_on_B: |
269 | fdd_motor_on_B: |
270 | mov [fdd_motor_status], 2 |
270 | mov [fdd_motor_status], 2 |
271 | fdd_motor_on: |
271 | fdd_motor_on: |
272 | call save_timer_fdd_motor |
272 | call save_timer_fdd_motor |
273 | popa |
273 | popa |
274 | ret |
274 | ret |
275 | 275 | ||
276 | ;***************************************** |
276 | ;***************************************** |
277 | ;* ÑÎÕÐÀÍÅÍÈÅ ÓÊÀÇÀÒÅËß ÂÐÅÌÅÍÈ * |
277 | ;* ÑÎÕÐÀÍÅÍÈÅ ÓÊÀÇÀÒÅËß ÂÐÅÌÅÍÈ * |
278 | ;***************************************** |
278 | ;***************************************** |
279 | save_timer_fdd_motor: |
279 | save_timer_fdd_motor: |
280 | mov eax, [timer_ticks] |
280 | mov eax, [timer_ticks] |
281 | mov [timer_fdd_motor], eax |
281 | mov [timer_fdd_motor], eax |
282 | ret |
282 | ret |
283 | 283 | ||
284 | ;***************************************** |
284 | ;***************************************** |
285 | ;* ÏÐÎÂÅÐÊÀ ÇÀÄÅÐÆÊÈ ÂÛÊËÞ×ÅÍÈß ÌÎÒÎÐÀ * |
285 | ;* ÏÐÎÂÅÐÊÀ ÇÀÄÅÐÆÊÈ ÂÛÊËÞ×ÅÍÈß ÌÎÒÎÐÀ * |
286 | ;***************************************** |
286 | ;***************************************** |
287 | align 4 |
287 | align 4 |
288 | check_fdd_motor_status: |
288 | check_fdd_motor_status: |
289 | cmp [fdd_motor_status], 0 |
289 | cmp [fdd_motor_status], 0 |
290 | je end_check_fdd_motor_status_1 |
290 | je end_check_fdd_motor_status_1 |
291 | mov eax, [timer_ticks] |
291 | mov eax, [timer_ticks] |
292 | sub eax, [timer_fdd_motor] |
292 | sub eax, [timer_fdd_motor] |
293 | cmp eax, 500 |
293 | cmp eax, 500 |
294 | jb end_check_fdd_motor_status |
294 | jb end_check_fdd_motor_status |
295 | call FDDMotorOFF |
295 | call FDDMotorOFF |
296 | mov [fdd_motor_status], 0 |
296 | mov [fdd_motor_status], 0 |
297 | end_check_fdd_motor_status_1: |
297 | end_check_fdd_motor_status_1: |
298 | mov [flp_status], 0 |
298 | mov [flp_status], 0 |
299 | end_check_fdd_motor_status: |
299 | end_check_fdd_motor_status: |
300 | ret |
300 | ret |
301 | 301 | ||
302 | ;********************************** |
302 | ;********************************** |
303 | ;* ÂÛÊËÞ×ÈÒÜ ÌÎÒÎÐ ÄÈÑÊÎÂÎÄÀ * |
303 | ;* ÂÛÊËÞ×ÈÒÜ ÌÎÒÎÐ ÄÈÑÊÎÂÎÄÀ * |
304 | ;********************************** |
304 | ;********************************** |
305 | FDDMotorOFF: |
305 | FDDMotorOFF: |
306 | push AX |
306 | push AX |
307 | push DX |
307 | push DX |
308 | cmp [flp_number], 1 |
308 | cmp [flp_number], 1 |
309 | jne FDDMotorOFF_1 |
309 | jne FDDMotorOFF_1 |
310 | call FDDMotorOFF_A |
310 | call FDDMotorOFF_A |
311 | jmp FDDMotorOFF_2 |
311 | jmp FDDMotorOFF_2 |
312 | FDDMotorOFF_1: |
312 | FDDMotorOFF_1: |
313 | call FDDMotorOFF_B |
313 | call FDDMotorOFF_B |
314 | FDDMotorOFF_2: |
314 | FDDMotorOFF_2: |
315 | pop DX |
315 | pop DX |
316 | pop AX |
316 | pop AX |
317 | ; ñáðîñ ôëàãîâ êåøèðîâàíèÿ â ñâÿçè ñ óñòàðåâàíèåì èíôîðìàöèè |
317 | ; ñáðîñ ôëàãîâ êåøèðîâàíèÿ â ñâÿçè ñ óñòàðåâàíèåì èíôîðìàöèè |
318 | mov [root_read], 0 |
318 | mov [root_read], 0 |
319 | mov [flp_fat], 0 |
319 | mov [flp_fat], 0 |
320 | ret |
320 | ret |
321 | 321 | ||
322 | FDDMotorOFF_A: |
322 | FDDMotorOFF_A: |
323 | mov DX, 3F2h;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè |
323 | mov DX, 3F2h;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè |
324 | mov AL, 0Ch ; Floppy A |
324 | mov AL, 0Ch ; Floppy A |
325 | out DX, AL |
325 | out DX, AL |
326 | ret |
326 | ret |
327 | 327 | ||
328 | FDDMotorOFF_B: |
328 | FDDMotorOFF_B: |
329 | mov DX, 3F2h;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè |
329 | mov DX, 3F2h;ïîðò óïðàâëåíèÿ äâèãàòåëÿìè |
330 | mov AL, 5h ; Floppy B |
330 | mov AL, 5h ; Floppy B |
331 | out DX, AL |
331 | out DX, AL |
332 | ret |
332 | ret |
333 | 333 | ||
334 | ;******************************* |
334 | ;******************************* |
335 | ;* ÐÅÊÀËÈÁÐÎÂÊÀ ÄÈÑÊÎÂÎÄÀ "A:" * |
335 | ;* ÐÅÊÀËÈÁÐÎÂÊÀ ÄÈÑÊÎÂÎÄÀ "A:" * |
336 | ;******************************* |
336 | ;******************************* |
337 | RecalibrateFDD: |
337 | RecalibrateFDD: |
338 | pusha |
338 | pusha |
339 | call save_timer_fdd_motor |
339 | call save_timer_fdd_motor |
340 | ; Ïîäàòü êîìàíäó "Ðåêàëèáðîâêà" |
340 | ; Ïîäàòü êîìàíäó "Ðåêàëèáðîâêà" |
341 | mov AL, 07h |
341 | mov AL, 07h |
342 | call FDCDataOutput |
342 | call FDCDataOutput |
343 | mov AL, 00h |
343 | mov AL, 00h |
344 | call FDCDataOutput |
344 | call FDCDataOutput |
345 | ; Îæèäàòü çàâåðøåíèÿ îïåðàöèè |
345 | ; Îæèäàòü çàâåðøåíèÿ îïåðàöèè |
346 | call WaitFDCInterrupt |
346 | call WaitFDCInterrupt |
347 | ; cmp [FDC_Status],0 |
347 | ; cmp [FDC_Status],0 |
348 | ; je no_fdc_status_error |
348 | ; je no_fdc_status_error |
349 | ; mov [flp_status],0 |
349 | ; mov [flp_status],0 |
350 | ;no_fdc_status_error: |
350 | ;no_fdc_status_error: |
351 | call save_timer_fdd_motor |
351 | call save_timer_fdd_motor |
352 | popa |
352 | popa |
353 | ret |
353 | ret |
354 | 354 | ||
355 | ;***************************************************** |
355 | ;***************************************************** |
356 | ;* ÏÎÈÑÊ ÄÎÐÎÆÊÈ * |
356 | ;* ÏÎÈÑÊ ÄÎÐÎÆÊÈ * |
357 | ;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: * |
357 | ;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: * |
358 | ;* FDD_Track - íîìåð äîðîæêè (0-79); * |
358 | ;* FDD_Track - íîìåð äîðîæêè (0-79); * |
359 | ;* FDD_Head - íîìåð ãîëîâêè (0-1). * |
359 | ;* FDD_Head - íîìåð ãîëîâêè (0-1). * |
360 | ;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. * |
360 | ;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. * |
361 | ;***************************************************** |
361 | ;***************************************************** |
362 | SeekTrack: |
362 | SeekTrack: |
363 | pusha |
363 | pusha |
364 | call save_timer_fdd_motor |
364 | call save_timer_fdd_motor |
365 | ; Ïîäàòü êîìàíäó "Ïîèñê" |
365 | ; Ïîäàòü êîìàíäó "Ïîèñê" |
366 | mov AL, 0Fh |
366 | mov AL, 0Fh |
367 | call FDCDataOutput |
367 | call FDCDataOutput |
368 | ; Ïåðåäàòü áàéò íîìåðà ãîëîâêè/íàêîïèòåë |
368 | ; Ïåðåäàòü áàéò íîìåðà ãîëîâêè/íàêîïèòåë |
369 | mov AL, [FDD_Head] |
369 | mov AL, [FDD_Head] |
370 | shl AL, 2 |
370 | shl AL, 2 |
371 | call FDCDataOutput |
371 | call FDCDataOutput |
372 | ; Ïåðåäàòü áàéò íîìåðà äîðîæêè |
372 | ; Ïåðåäàòü áàéò íîìåðà äîðîæêè |
373 | mov AL, [FDD_Track] |
373 | mov AL, [FDD_Track] |
374 | call FDCDataOutput |
374 | call FDCDataOutput |
375 | ; Îæèäàòü çàâåðøåíèÿ îïåðàöèè |
375 | ; Îæèäàòü çàâåðøåíèÿ îïåðàöèè |
376 | call WaitFDCInterrupt |
376 | call WaitFDCInterrupt |
377 | cmp [FDC_Status], FDC_Normal |
377 | cmp [FDC_Status], FDC_Normal |
378 | jne @@Exit |
378 | jne @@Exit |
379 | ; Ñîõðàíèòü ðåçóëüòàò ïîèñêà |
379 | ; Ñîõðàíèòü ðåçóëüòàò ïîèñêà |
380 | mov AL, 08h |
380 | mov AL, 08h |
381 | call FDCDataOutput |
381 | call FDCDataOutput |
382 | call FDCDataInput |
382 | call FDCDataInput |
383 | mov [FDC_ST0], AL |
383 | mov [FDC_ST0], AL |
384 | call FDCDataInput |
384 | call FDCDataInput |
385 | mov [FDC_C], AL |
385 | mov [FDC_C], AL |
386 | ; Ïðîâåðèòü ðåçóëüòàò ïîèñêà |
386 | ; Ïðîâåðèòü ðåçóëüòàò ïîèñêà |
387 | ; Ïîèñê çàâåðøåí? |
387 | ; Ïîèñê çàâåðøåí? |
388 | test [FDC_ST0], 100000b |
388 | test [FDC_ST0], 100000b |
389 | je @@Err |
389 | je @@Err |
390 | ; Çàäàííûé òðåê íàéäåí? |
390 | ; Çàäàííûé òðåê íàéäåí? |
391 | mov AL, [FDC_C] |
391 | mov AL, [FDC_C] |
392 | cmp AL, [FDD_Track] |
392 | cmp AL, [FDD_Track] |
393 | jne @@Err |
393 | jne @@Err |
394 | ; Íîìåð ãîëîâêè ñîâïàäàåò ñ çàäàííûì? |
394 | ; Íîìåð ãîëîâêè ñîâïàäàåò ñ çàäàííûì? |
395 | mov AL, [FDC_ST0] |
395 | mov AL, [FDC_ST0] |
396 | and AL, 100b |
396 | and AL, 100b |
397 | shr AL, 2 |
397 | shr AL, 2 |
398 | cmp AL, [FDD_Head] |
398 | cmp AL, [FDD_Head] |
399 | jne @@Err |
399 | jne @@Err |
400 | ; Îïåðàöèÿ çàâåðøåíà óñïåøíî |
400 | ; Îïåðàöèÿ çàâåðøåíà óñïåøíî |
401 | mov [FDC_Status], FDC_Normal |
401 | mov [FDC_Status], FDC_Normal |
402 | jmp @@Exit |
402 | jmp @@Exit |
403 | @@Err: ; Òðåê íå íàéäåí |
403 | @@Err: ; Òðåê íå íàéäåí |
404 | mov [FDC_Status], FDC_TrackNotFound |
404 | mov [FDC_Status], FDC_TrackNotFound |
405 | ; mov [flp_status],0 |
405 | ; mov [flp_status],0 |
406 | @@Exit: |
406 | @@Exit: |
407 | call save_timer_fdd_motor |
407 | call save_timer_fdd_motor |
408 | popa |
408 | popa |
409 | ret |
409 | ret |
410 | 410 | ||
411 | ;******************************************************* |
411 | ;******************************************************* |
412 | ;* ×ÒÅÍÈÅ ÑÅÊÒÎÐÀ ÄÀÍÍÛÕ * |
412 | ;* ×ÒÅÍÈÅ ÑÅÊÒÎÐÀ ÄÀÍÍÛÕ * |
413 | ;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: * |
413 | ;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: * |
414 | ;* FDD_Track - íîìåð äîðîæêè (0-79); * |
414 | ;* FDD_Track - íîìåð äîðîæêè (0-79); * |
415 | ;* FDD_Head - íîìåð ãîëîâêè (0-1); * |
415 | ;* FDD_Head - íîìåð ãîëîâêè (0-1); * |
416 | ;* FDD_Sector - íîìåð ñåêòîðà (1-18). * |
416 | ;* FDD_Sector - íîìåð ñåêòîðà (1-18). * |
417 | ;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. * |
417 | ;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. * |
418 | ;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè ÷òåíèÿ * |
418 | ;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè ÷òåíèÿ * |
419 | ;* ñîäåðæèìîå ñåêòîðà áóäåò çàíåñåíî â FDD_DataBuffer. * |
419 | ;* ñîäåðæèìîå ñåêòîðà áóäåò çàíåñåíî â FDD_DataBuffer. * |
420 | ;******************************************************* |
420 | ;******************************************************* |
421 | ReadSector: |
421 | ReadSector: |
422 | pushad |
422 | pushad |
423 | call save_timer_fdd_motor |
423 | call save_timer_fdd_motor |
424 | ; Óñòàíîâèòü ñêîðîñòü ïåðåäà÷è 500 Êáàéò/ñ |
424 | ; Óñòàíîâèòü ñêîðîñòü ïåðåäà÷è 500 Êáàéò/ñ |
425 | mov AX, 0 |
425 | mov AX, 0 |
426 | mov DX, 03F7h |
426 | mov DX, 03F7h |
427 | out DX, AL |
427 | out DX, AL |
428 | ; Èíèöèàëèçèðîâàòü êàíàë ïðÿìîãî äîñòóïà ê ïàìÿòè |
428 | ; Èíèöèàëèçèðîâàòü êàíàë ïðÿìîãî äîñòóïà ê ïàìÿòè |
429 | mov [dmamode], 0x46 |
429 | mov [dmamode], 0x46 |
430 | call Init_FDC_DMA |
430 | call Init_FDC_DMA |
431 | ; Ïîäàòü êîìàíäó "×òåíèå äàííûõ" |
431 | ; Ïîäàòü êîìàíäó "×òåíèå äàííûõ" |
432 | mov AL, 0E6h ;÷òåíèå â ìóëüòèòðåêîâîì ðåæèìå |
432 | mov AL, 0E6h ;÷òåíèå â ìóëüòèòðåêîâîì ðåæèìå |
433 | call FDCDataOutput |
433 | call FDCDataOutput |
434 | mov AL, [FDD_Head] |
434 | mov AL, [FDD_Head] |
435 | shl AL, 2 |
435 | shl AL, 2 |
436 | call FDCDataOutput |
436 | call FDCDataOutput |
437 | mov AL, [FDD_Track] |
437 | mov AL, [FDD_Track] |
438 | call FDCDataOutput |
438 | call FDCDataOutput |
439 | mov AL, [FDD_Head] |
439 | mov AL, [FDD_Head] |
440 | call FDCDataOutput |
440 | call FDCDataOutput |
441 | mov AL, [FDD_Sector] |
441 | mov AL, [FDD_Sector] |
442 | call FDCDataOutput |
442 | call FDCDataOutput |
443 | mov AL, 2 ;êîä ðàçìåðà ñåêòîðà (512 áàéò) |
443 | mov AL, 2 ;êîä ðàçìåðà ñåêòîðà (512 áàéò) |
444 | call FDCDataOutput |
444 | call FDCDataOutput |
445 | mov AL, 18 ;+1; 3Fh ;÷èñëî ñåêòîðîâ íà äîðîæêå |
445 | mov AL, 18 ;+1; 3Fh ;÷èñëî ñåêòîðîâ íà äîðîæêå |
446 | call FDCDataOutput |
446 | call FDCDataOutput |
447 | mov AL, 1Bh ;çíà÷åíèå GPL |
447 | mov AL, 1Bh ;çíà÷åíèå GPL |
448 | call FDCDataOutput |
448 | call FDCDataOutput |
449 | mov AL, 0FFh;çíà÷åíèå DTL |
449 | mov AL, 0FFh;çíà÷åíèå DTL |
450 | call FDCDataOutput |
450 | call FDCDataOutput |
451 | ; Îæèäàåì ïðåðûâàíèå ïî çàâåðøåíèè îïåðàöèè |
451 | ; Îæèäàåì ïðåðûâàíèå ïî çàâåðøåíèè îïåðàöèè |
452 | call WaitFDCInterrupt |
452 | call WaitFDCInterrupt |
453 | cmp [FDC_Status], FDC_Normal |
453 | cmp [FDC_Status], FDC_Normal |
454 | jne @@Exit_1 |
454 | jne @@Exit_1 |
455 | ; Ñ÷èòûâàåì ñòàòóñ çàâåðøåíèÿ îïåðàöèè |
455 | ; Ñ÷èòûâàåì ñòàòóñ çàâåðøåíèÿ îïåðàöèè |
456 | call GetStatusInfo |
456 | call GetStatusInfo |
457 | test [FDC_ST0], 11011000b |
457 | test [FDC_ST0], 11011000b |
458 | jnz @@Err_1 |
458 | jnz @@Err_1 |
459 | mov [FDC_Status], FDC_Normal |
459 | mov [FDC_Status], FDC_Normal |
460 | jmp @@Exit_1 |
460 | jmp @@Exit_1 |
461 | @@Err_1: |
461 | @@Err_1: |
462 | mov [FDC_Status], FDC_SectorNotFound |
462 | mov [FDC_Status], FDC_SectorNotFound |
463 | ; mov [flp_status],0 |
463 | ; mov [flp_status],0 |
464 | @@Exit_1: |
464 | @@Exit_1: |
465 | call save_timer_fdd_motor |
465 | call save_timer_fdd_motor |
466 | popad |
466 | popad |
467 | ret |
467 | ret |
468 | 468 | ||
469 | ;******************************************************* |
469 | ;******************************************************* |
470 | ;* ×ÒÅÍÈÅ ÑÅÊÒÎÐÀ (Ñ ÏÎÂÒÎÐÅÍÈÅÌ ÎÏÅÐÀÖÈÈ ÏÐÈ ÑÁÎÅ) * |
470 | ;* ×ÒÅÍÈÅ ÑÅÊÒÎÐÀ (Ñ ÏÎÂÒÎÐÅÍÈÅÌ ÎÏÅÐÀÖÈÈ ÏÐÈ ÑÁÎÅ) * |
471 | ;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: * |
471 | ;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: * |
472 | ;* FDD_Track - íîìåð äîðîæêè (0-79); * |
472 | ;* FDD_Track - íîìåð äîðîæêè (0-79); * |
473 | ;* FDD_Head - íîìåð ãîëîâêè (0-1); * |
473 | ;* FDD_Head - íîìåð ãîëîâêè (0-1); * |
474 | ;* FDD_Sector - íîìåð ñåêòîðà (1-18). * |
474 | ;* FDD_Sector - íîìåð ñåêòîðà (1-18). * |
475 | ;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. * |
475 | ;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. * |
476 | ;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè ÷òåíèÿ * |
476 | ;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè ÷òåíèÿ * |
477 | ;* ñîäåðæèìîå ñåêòîðà áóäåò çàíåñåíî â FDD_DataBuffer. * |
477 | ;* ñîäåðæèìîå ñåêòîðà áóäåò çàíåñåíî â FDD_DataBuffer. * |
478 | ;******************************************************* |
478 | ;******************************************************* |
479 | ReadSectWithRetr: |
479 | ReadSectWithRetr: |
480 | pusha |
480 | pusha |
481 | ; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè |
481 | ; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè |
482 | mov [RecalRepCounter], 0 |
482 | mov [RecalRepCounter], 0 |
483 | @@TryAgain: |
483 | @@TryAgain: |
484 | ; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíè |
484 | ; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíè |
485 | mov [ReadRepCounter], 0 |
485 | mov [ReadRepCounter], 0 |
486 | @@ReadSector_1: |
486 | @@ReadSector_1: |
487 | call ReadSector |
487 | call ReadSector |
488 | cmp [FDC_Status], 0 |
488 | cmp [FDC_Status], 0 |
489 | je @@Exit_2 |
489 | je @@Exit_2 |
490 | cmp [FDC_Status], 1 |
490 | cmp [FDC_Status], 1 |
491 | je @@Err_3 |
491 | je @@Err_3 |
492 | ; Òðîåêðàòíîå ïîâòîðåíèå ÷òåíè |
492 | ; Òðîåêðàòíîå ïîâòîðåíèå ÷òåíè |
493 | inc [ReadRepCounter] |
493 | inc [ReadRepCounter] |
494 | cmp [ReadRepCounter], 3 |
494 | cmp [ReadRepCounter], 3 |
495 | jb @@ReadSector_1 |
495 | jb @@ReadSector_1 |
496 | ; Òðîåêðàòíîå ïîâòîðåíèå ðåêàëèáðîâêè |
496 | ; Òðîåêðàòíîå ïîâòîðåíèå ðåêàëèáðîâêè |
497 | call RecalibrateFDD |
497 | call RecalibrateFDD |
498 | call SeekTrack |
498 | call SeekTrack |
499 | inc [RecalRepCounter] |
499 | inc [RecalRepCounter] |
500 | cmp [RecalRepCounter], 3 |
500 | cmp [RecalRepCounter], 3 |
501 | jb @@TryAgain |
501 | jb @@TryAgain |
502 | ; mov [flp_status],0 |
502 | ; mov [flp_status],0 |
503 | @@Exit_2: |
503 | @@Exit_2: |
504 | popa |
504 | popa |
505 | ret |
505 | ret |
506 | @@Err_3: |
506 | @@Err_3: |
507 | mov [flp_status], 0 |
507 | mov [flp_status], 0 |
508 | popa |
508 | popa |
509 | ret |
509 | ret |
510 | 510 | ||
511 | ;******************************************************* |
511 | ;******************************************************* |
512 | ;* ÇÀÏÈÑÜ ÑÅÊÒÎÐÀ ÄÀÍÍÛÕ * |
512 | ;* ÇÀÏÈÑÜ ÑÅÊÒÎÐÀ ÄÀÍÍÛÕ * |
513 | ;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: * |
513 | ;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: * |
514 | ;* FDD_Track - íîìåð äîðîæêè (0-79); * |
514 | ;* FDD_Track - íîìåð äîðîæêè (0-79); * |
515 | ;* FDD_Head - íîìåð ãîëîâêè (0-1); * |
515 | ;* FDD_Head - íîìåð ãîëîâêè (0-1); * |
516 | ;* FDD_Sector - íîìåð ñåêòîðà (1-18). * |
516 | ;* FDD_Sector - íîìåð ñåêòîðà (1-18). * |
517 | ;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. * |
517 | ;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. * |
518 | ;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè çàïèñè * |
518 | ;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè çàïèñè * |
519 | ;* ñîäåðæèìîå FDD_DataBuffer áóäåò çàíåñåíî â ñåêòîð. * |
519 | ;* ñîäåðæèìîå FDD_DataBuffer áóäåò çàíåñåíî â ñåêòîð. * |
520 | ;******************************************************* |
520 | ;******************************************************* |
521 | WriteSector: |
521 | WriteSector: |
522 | pushad |
522 | pushad |
523 | call save_timer_fdd_motor |
523 | call save_timer_fdd_motor |
524 | ; Óñòàíîâèòü ñêîðîñòü ïåðåäà÷è 500 Êáàéò/ñ |
524 | ; Óñòàíîâèòü ñêîðîñòü ïåðåäà÷è 500 Êáàéò/ñ |
525 | mov AX, 0 |
525 | mov AX, 0 |
526 | mov DX, 03F7h |
526 | mov DX, 03F7h |
527 | out DX, AL |
527 | out DX, AL |
528 | ; Èíèöèàëèçèðîâàòü êàíàë ïðÿìîãî äîñòóïà ê ïàìÿòè |
528 | ; Èíèöèàëèçèðîâàòü êàíàë ïðÿìîãî äîñòóïà ê ïàìÿòè |
529 | mov [dmamode], 0x4A |
529 | mov [dmamode], 0x4A |
530 | call Init_FDC_DMA |
530 | call Init_FDC_DMA |
531 | ; Ïîäàòü êîìàíäó "Çàïèñü äàííûõ" |
531 | ; Ïîäàòü êîìàíäó "Çàïèñü äàííûõ" |
532 | mov AL, 0xC5 ;0x45 ;çàïèñü â ìóëüòèòðåêîâîì ðåæèìå |
532 | mov AL, 0xC5 ;0x45 ;çàïèñü â ìóëüòèòðåêîâîì ðåæèìå |
533 | call FDCDataOutput |
533 | call FDCDataOutput |
534 | mov AL, [FDD_Head] |
534 | mov AL, [FDD_Head] |
535 | shl AL, 2 |
535 | shl AL, 2 |
536 | call FDCDataOutput |
536 | call FDCDataOutput |
537 | mov AL, [FDD_Track] |
537 | mov AL, [FDD_Track] |
538 | call FDCDataOutput |
538 | call FDCDataOutput |
539 | mov AL, [FDD_Head] |
539 | mov AL, [FDD_Head] |
540 | call FDCDataOutput |
540 | call FDCDataOutput |
541 | mov AL, [FDD_Sector] |
541 | mov AL, [FDD_Sector] |
542 | call FDCDataOutput |
542 | call FDCDataOutput |
543 | mov AL, 2 ;êîä ðàçìåðà ñåêòîðà (512 áàéò) |
543 | mov AL, 2 ;êîä ðàçìåðà ñåêòîðà (512 áàéò) |
544 | call FDCDataOutput |
544 | call FDCDataOutput |
545 | mov AL, 18; 3Fh ;÷èñëî ñåêòîðîâ íà äîðîæêå |
545 | mov AL, 18; 3Fh ;÷èñëî ñåêòîðîâ íà äîðîæêå |
546 | call FDCDataOutput |
546 | call FDCDataOutput |
547 | mov AL, 1Bh ;çíà÷åíèå GPL |
547 | mov AL, 1Bh ;çíà÷åíèå GPL |
548 | call FDCDataOutput |
548 | call FDCDataOutput |
549 | mov AL, 0FFh;çíà÷åíèå DTL |
549 | mov AL, 0FFh;çíà÷åíèå DTL |
550 | call FDCDataOutput |
550 | call FDCDataOutput |
551 | ; Îæèäàåì ïðåðûâàíèå ïî çàâåðøåíèè îïåðàöèè |
551 | ; Îæèäàåì ïðåðûâàíèå ïî çàâåðøåíèè îïåðàöèè |
552 | call WaitFDCInterrupt |
552 | call WaitFDCInterrupt |
553 | cmp [FDC_Status], FDC_Normal |
553 | cmp [FDC_Status], FDC_Normal |
554 | jne @@Exit_3 |
554 | jne @@Exit_3 |
555 | ; Ñ÷èòûâàåì ñòàòóñ çàâåðøåíèÿ îïåðàöèè |
555 | ; Ñ÷èòûâàåì ñòàòóñ çàâåðøåíèÿ îïåðàöèè |
556 | call GetStatusInfo |
556 | call GetStatusInfo |
557 | test [FDC_ST0], 11000000b ;11011000b |
557 | test [FDC_ST0], 11000000b ;11011000b |
558 | jnz @@Err_2 |
558 | jnz @@Err_2 |
559 | mov [FDC_Status], FDC_Normal |
559 | mov [FDC_Status], FDC_Normal |
560 | jmp @@Exit_3 |
560 | jmp @@Exit_3 |
561 | @@Err_2: |
561 | @@Err_2: |
562 | mov [FDC_Status], FDC_SectorNotFound |
562 | mov [FDC_Status], FDC_SectorNotFound |
563 | @@Exit_3: |
563 | @@Exit_3: |
564 | call save_timer_fdd_motor |
564 | call save_timer_fdd_motor |
565 | popad |
565 | popad |
566 | ret |
566 | ret |
567 | 567 | ||
568 | ;******************************************************* |
568 | ;******************************************************* |
569 | ;* ÇÀÏÈÑÜ ÑÅÊÒÎÐÀ (Ñ ÏÎÂÒÎÐÅÍÈÅÌ ÎÏÅÐÀÖÈÈ ÏÐÈ ÑÁÎÅ) * |
569 | ;* ÇÀÏÈÑÜ ÑÅÊÒÎÐÀ (Ñ ÏÎÂÒÎÐÅÍÈÅÌ ÎÏÅÐÀÖÈÈ ÏÐÈ ÑÁÎÅ) * |
570 | ;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: * |
570 | ;* Ïàðàìåòðû ïåðåäàþòñÿ ÷åðåç ãëîáàëüíûå ïåðåìåííûå: * |
571 | ;* FDD_Track - íîìåð äîðîæêè (0-79); * |
571 | ;* FDD_Track - íîìåð äîðîæêè (0-79); * |
572 | ;* FDD_Head - íîìåð ãîëîâêè (0-1); * |
572 | ;* FDD_Head - íîìåð ãîëîâêè (0-1); * |
573 | ;* FDD_Sector - íîìåð ñåêòîðà (1-18). * |
573 | ;* FDD_Sector - íîìåð ñåêòîðà (1-18). * |
574 | ;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. * |
574 | ;* Ðåçóëüòàò îïåðàöèè çàíîñèòñÿ â FDC_Status. * |
575 | ;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè çàïèñè * |
575 | ;*  ñëó÷àå óñïåøíîãî âûïîëíåíèÿ îïåðàöèè çàïèñè * |
576 | ;* ñîäåðæèìîå FDD_DataBuffer áóäåò çàíåñåíî â ñåêòîð. * |
576 | ;* ñîäåðæèìîå FDD_DataBuffer áóäåò çàíåñåíî â ñåêòîð. * |
577 | ;******************************************************* |
577 | ;******************************************************* |
578 | WriteSectWithRetr: |
578 | WriteSectWithRetr: |
579 | pusha |
579 | pusha |
580 | ; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè |
580 | ; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ðåêàëèáðîâêè |
581 | mov [RecalRepCounter], 0 |
581 | mov [RecalRepCounter], 0 |
582 | @@TryAgain_1: |
582 | @@TryAgain_1: |
583 | ; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíè |
583 | ; Îáíóëèòü ñ÷åò÷èê ïîâòîðåíèÿ îïåðàöèè ÷òåíè |
584 | mov [ReadRepCounter], 0 |
584 | mov [ReadRepCounter], 0 |
585 | @@WriteSector_1: |
585 | @@WriteSector_1: |
586 | call WriteSector |
586 | call WriteSector |
587 | cmp [FDC_Status], 0 |
587 | cmp [FDC_Status], 0 |
588 | je @@Exit_4 |
588 | je @@Exit_4 |
589 | cmp [FDC_Status], 1 |
589 | cmp [FDC_Status], 1 |
590 | je @@Err_4 |
590 | je @@Err_4 |
591 | ; Òðîåêðàòíîå ïîâòîðåíèå ÷òåíè |
591 | ; Òðîåêðàòíîå ïîâòîðåíèå ÷òåíè |
592 | inc [ReadRepCounter] |
592 | inc [ReadRepCounter] |
593 | cmp [ReadRepCounter], 3 |
593 | cmp [ReadRepCounter], 3 |
594 | jb @@WriteSector_1 |
594 | jb @@WriteSector_1 |
595 | ; Òðîåêðàòíîå ïîâòîðåíèå ðåêàëèáðîâêè |
595 | ; Òðîåêðàòíîå ïîâòîðåíèå ðåêàëèáðîâêè |
596 | call RecalibrateFDD |
596 | call RecalibrateFDD |
597 | call SeekTrack |
597 | call SeekTrack |
598 | inc [RecalRepCounter] |
598 | inc [RecalRepCounter] |
599 | cmp [RecalRepCounter], 3 |
599 | cmp [RecalRepCounter], 3 |
600 | jb @@TryAgain_1 |
600 | jb @@TryAgain_1 |
601 | @@Exit_4: |
601 | @@Exit_4: |
602 | popa |
602 | popa |
603 | ret |
603 | ret |
604 | @@Err_4: |
604 | @@Err_4: |
605 | mov [flp_status], 0 |
605 | mov [flp_status], 0 |
606 | popa |
606 | popa |
607 | ret |
607 | ret |
608 | 608 | ||
609 | ;********************************************* |
609 | ;********************************************* |
610 | ;* ÏÎËÓ×ÈÒÜ ÈÍÔÎÐÌÀÖÈÞ Î ÐÅÇÓËÜÒÀÒÅ ÎÏÅÐÀÖÈÈ * |
610 | ;* ÏÎËÓ×ÈÒÜ ÈÍÔÎÐÌÀÖÈÞ Î ÐÅÇÓËÜÒÀÒÅ ÎÏÅÐÀÖÈÈ * |
611 | ;********************************************* |
611 | ;********************************************* |
612 | GetStatusInfo: |
612 | GetStatusInfo: |
613 | push AX |
613 | push AX |
614 | call FDCDataInput |
614 | call FDCDataInput |
615 | mov [FDC_ST0], AL |
615 | mov [FDC_ST0], AL |
616 | call FDCDataInput |
616 | call FDCDataInput |
617 | mov [FDC_ST1], AL |
617 | mov [FDC_ST1], AL |
618 | call FDCDataInput |
618 | call FDCDataInput |
619 | mov [FDC_ST2], AL |
619 | mov [FDC_ST2], AL |
620 | call FDCDataInput |
620 | call FDCDataInput |
621 | mov [FDC_C], AL |
621 | mov [FDC_C], AL |
622 | call FDCDataInput |
622 | call FDCDataInput |
623 | mov [FDC_H], AL |
623 | mov [FDC_H], AL |
624 | call FDCDataInput |
624 | call FDCDataInput |
625 | mov [FDC_R], AL |
625 | mov [FDC_R], AL |
626 | call FDCDataInput |
626 | call FDCDataInput |
627 | mov [FDC_N], AL |
627 | mov [FDC_N], AL |
628 | pop AX |
628 | pop AX |
629 | ret |
629 | ret |