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Flash.asm@ 576

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Last change on this file since 576 was 568, checked in by krille_n_@…, 10 years ago

Changes:

SerDrive: Using named pipe mode (serdrive -p) now works under Windows XP/2000/Server 2003.
checksum.pl: Added a compatibility fix for 3Com 3C503 cards.
XTIDECFG will now scan every possible segment address to find and load the BIOS and/or its settings from EEPROM. This should simplify things for people using combined option ROMs.
Fixed a bug from r521 in BootSector.asm where the BIOS would not display a timeout error if it failed to load the boot sector from harddrive.
Fixed a bug from r541 in CompatibleDPT.asm where CompatibleDPT_CreateDeviceParameterTableExtensionToESBXfromDPTinDSSI would generate an invalid checksum in the DPTE.
Optimizations and other fixes.

File size: 11.8 KB

Line
1	; Project name : XTIDE Universal BIOS Configurator v2
2	; Description : Functions for flashing the EEPROM.
3
4	;
5	; XTIDE Universal BIOS and Associated Tools
6	; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
7	;
8	; This program is free software; you can redistribute it and/or modify
9	; it under the terms of the GNU General Public License as published by
10	; the Free Software Foundation; either version 2 of the License, or
11	; (at your option) any later version.
12	;
13	; This program is distributed in the hope that it will be useful,
14	; but WITHOUT ANY WARRANTY; without even the implied warranty of
15	; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	; GNU General Public License for more details.
17	; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
18	;
19
20	; Section containing code
21	SECTION .text
22
23	;--------------------------------------------------------------------
24	; Flash_EepromWithFlashvarsInDSSI
25	; Parameters:
26	; DS:SI: Ptr to FLASHVARS
27	; Returns:
28	; FLASHVARS.flashResult
29	; Corrupts registers:
30	; All, including segments
31	;--------------------------------------------------------------------
32	ALIGN JUMP_ALIGN
33	Flash_EepromWithFlashvarsInDSSI:
34	mov [si+FLASHVARS.wProgressUpdateParam], bp ; Store handle to progress DIALOG
35	mov bp, si ; Flashvars now in SS:BP
36	mov cx, [bp+FLASHVARS.wPagesToFlash]
37	ALIGN JUMP_ALIGN
38	.FlashNextPage:
39	call DisplayFlashProgressWithPagesLeftInCXandFlashvarsInSSBP
40	call Flash_SinglePageWithFlashvarsInSSBP
41	jc SHORT .PollingError
42	call AreSourceAndDestinationPagesEqualFromFlashvarsInSSBP
43	jne SHORT .DataVerifyError
44
45	mov ax, [bp+FLASHVARS.wEepromPageSize]
46	add [bp+FLASHVARS.fpNextSourcePage], ax
47	add [bp+FLASHVARS.fpNextComparisonPage], ax
48	add [bp+FLASHVARS.fpNextDestinationPage], ax
49
50	loop .FlashNextPage
51	%ifndef CHECK_FOR_UNUSED_ENTRYPOINTS
52	%if FLASH_RESULT.success = 0 ; Just in case this should ever change
53	mov [bp+FLASHVARS.flashResult], cl
54	%else
55	mov BYTE [bp+FLASHVARS.flashResult], FLASH_RESULT.success
56	%endif
57	%endif
58	ret
59
60	.PollingError:
61	mov BYTE [bp+FLASHVARS.flashResult], FLASH_RESULT.PollingTimeoutError
62	ret
63	.DataVerifyError:
64	mov BYTE [bp+FLASHVARS.flashResult], FLASH_RESULT.DataVerifyError
65	ret
66
67
68	;--------------------------------------------------------------------
69	; Flash_SinglePageWithFlashvarsInSSBP
70	; Parameters:
71	; SS:BP: Ptr to FLASHVARS
72	; Returns:
73	; CF: Set if polling timeout error
74	; Cleared if page written successfully
75	; Corrupts registers:
76	; AX, BX, DX, SI, DI, DS, ES
77	;--------------------------------------------------------------------
78	ALIGN JUMP_ALIGN
79	Flash_SinglePageWithFlashvarsInSSBP:
80	cld
81	call AreSourceAndDestinationPagesEqualFromFlashvarsInSSBP
82	je SHORT .NoNeedToFlashThePage ; CF cleared
83
84	push cx
85	call .GetSdpCommandFunctionToAXwithFlashvarsInSSBP
86	mov cx, [bp+FLASHVARS.wEepromPageSize]
87	mov si, [bp+FLASHVARS.fpNextSourcePage]
88	les di, [bp+FLASHVARS.fpNextComparisonPage]
89	mov bx, [bp+FLASHVARS.fpNextDestinationPage]
90	call WriteAllChangedBytesFromPageToEeprom
91	pop cx
92	.NoNeedToFlashThePage:
93	ret
94
95	;--------------------------------------------------------------------
96	; .GetSdpCommandFunctionToAXwithFlashvarsInSSBP
97	; Parameters:
98	; SS:BP: Ptr to FLASHVARS
99	; Returns:
100	; AX: Ptr to SDP Command function
101	; Corrupts registers:
102	; BX, SI
103	;--------------------------------------------------------------------
104	ALIGN JUMP_ALIGN
105	.GetSdpCommandFunctionToAXwithFlashvarsInSSBP:
106	eMOVZX bx, [bp+FLASHVARS.bEepromSdpCommand]
107	mov si, [cs:bx+.rgpSdpCommandToEepromTypeLookupTable]
108	mov bl, [bp+FLASHVARS.bEepromType]
109	mov ax, [cs:bx+si]
110	ret
111
112	ALIGN WORD_ALIGN
113	.rgpSdpCommandToEepromTypeLookupTable:
114	dw .rgfnFlashWithoutSDP ; SDP_COMMAND.none
115	dw .rgfnEnableSdpAndFlash ; SDP_COMMAND.enable
116	dw .rgfnDisableSdpAndFlash ; SDP_COMMAND.disable
117	.rgfnFlashWithoutSDP: ; SDP_COMMAND.none
118	dw DoNotWriteAnySdpCommand ; EEPROM_TYPE.2816_2kiB
119	dw DoNotWriteAnySdpCommand ; EEPROM_TYPE.2864_8kiB
120	dw DoNotWriteAnySdpCommand ; EEPROM_TYPE.2864_8kiB_MOD
121	dw DoNotWriteAnySdpCommand ; EEPROM_TYPE.28256_32kiB
122	dw DoNotWriteAnySdpCommand ; EEPROM_TYPE.28512_64kiB
123	.rgfnEnableSdpAndFlash: ; SDP_COMMAND.enable
124	dw WriteSdpEnableCommandFor2816 ; EEPROM_TYPE.2816_2kiB
125	dw WriteSdpEnableCommandFor2864 ; EEPROM_TYPE.2864_8kiB
126	dw WriteSdpEnableCommandFor2864mod ; EEPROM_TYPE.2864_8kiB_MOD
127	dw WriteSdpEnableCommandFor28256or28512 ; EEPROM_TYPE.28256_32kiB
128	dw WriteSdpEnableCommandFor28256or28512 ; EEPROM_TYPE.28512_64kiB
129	.rgfnDisableSdpAndFlash: ; SDP_COMMAND.disable
130	dw WriteSdpDisableCommandFor2816 ; EEPROM_TYPE.2816_2kiB
131	dw WriteSdpDisableCommandFor2864 ; EEPROM_TYPE.2864_8kiB
132	dw WriteSdpDisableCommandFor2864mod ; EEPROM_TYPE.2864_8kiB_MOD
133	dw WriteSdpDisableCommandFor28256or28512 ; EEPROM_TYPE.28256_32kiB
134	dw WriteSdpDisableCommandFor28256or28512 ; EEPROM_TYPE.28512_64kiB
135
136
137	;--------------------------------------------------------------------
138	; AreSourceAndDestinationPagesEqualFromFlashvarsInSSBP
139	; Parameters:
140	; SS:BP: Ptr to FLASHVARS
141	; Returns:
142	; ZF: Set if pages are equal
143	; Cleared if pages are not equal
144	; Corrupts registers:
145	; SI, DI
146	;--------------------------------------------------------------------
147	ALIGN JUMP_ALIGN
148	AreSourceAndDestinationPagesEqualFromFlashvarsInSSBP:
149	push cx
150	mov cx, [bp+FLASHVARS.wEepromPageSize]
151	lds si, [bp+FLASHVARS.fpNextSourcePage]
152	les di, [bp+FLASHVARS.fpNextDestinationPage]
153	repe cmpsb
154	pop cx
155	ret
156
157
158	;--------------------------------------------------------------------
159	; ENABLE_SDP
160	; Parameters:
161	; %1: Offset for first command byte
162	; %2: Offset for second command byte
163	; DS: Segment to beginning of EEPROM
164	; Returns:
165	; Nothing
166	; Corrupts registers:
167	; Nothing
168	;--------------------------------------------------------------------
169	%macro ENABLE_SDP 2
170	mov BYTE [%1], 0AAh
171	mov BYTE [%2], 55h
172	mov BYTE [%1], 0A0h
173	%endmacro
174
175	;--------------------------------------------------------------------
176	; DISABLE_SDP
177	; Parameters:
178	; %1: Offset for first command byte
179	; %2: Offset for second command byte
180	; DS: Segment to beginning of EEPROM
181	; Returns:
182	; Nothing
183	; Corrupts registers:
184	; AX
185	;--------------------------------------------------------------------
186	%macro DISABLE_SDP 2
187	mov ax, 80AAh
188	%%Again:
189	mov [%1], al ; 0AAh
190	shr al, 1
191	mov [%2], al ; 55h
192	mov [%1], ah ; 80h/20h
193	xor ax, 0A0FFh
194	jns SHORT %%Again
195	%endmacro
196
197	;--------------------------------------------------------------------
198	; SDP Command Functions
199	; Parameters:
200	; DS: Segment to beginning of EEPROM
201	; Returns:
202	; Nothing but jumps to WriteActualDataByteAfterSdpCommand
203	; Corrupts registers:
204	; Nothing
205	;--------------------------------------------------------------------
206	ALIGN JUMP_ALIGN
207	WriteSdpEnableCommandFor2816:
208	ENABLE_SDP 555h, 2AAh
209	jmp ReturnFromSdpCommand
210
211	ALIGN JUMP_ALIGN
212	WriteSdpEnableCommandFor2864:
213	ENABLE_SDP 1555h, 0AAAh
214	jmp ReturnFromSdpCommand
215
216	ALIGN JUMP_ALIGN
217	WriteSdpEnableCommandFor2864mod:
218	ENABLE_SDP 155Ch, 0AA3h
219	jmp SHORT ReturnFromSdpCommand
220
221	ALIGN JUMP_ALIGN
222	WriteSdpEnableCommandFor28256or28512:
223	ENABLE_SDP 5555h, 2AAAh
224	jmp SHORT ReturnFromSdpCommand
225
226
227	ALIGN JUMP_ALIGN
228	WriteSdpDisableCommandFor2816:
229	DISABLE_SDP 555h, 2AAh
230	jmp SHORT ReturnFromSdpCommand
231
232	ALIGN JUMP_ALIGN
233	WriteSdpDisableCommandFor2864:
234	DISABLE_SDP 1555h, 0AAAh
235	jmp SHORT ReturnFromSdpCommand
236
237	ALIGN JUMP_ALIGN
238	WriteSdpDisableCommandFor2864mod:
239	DISABLE_SDP 155Ch, 0AA3h
240	jmp SHORT ReturnFromSdpCommand
241
242	ALIGN JUMP_ALIGN
243	WriteSdpDisableCommandFor28256or28512:
244	DISABLE_SDP 5555h, 2AAAh
245	jmp SHORT ReturnFromSdpCommand
246
247	DoNotWriteAnySdpCommand EQU ReturnFromSdpCommand
248
249
250	;--------------------------------------------------------------------
251	; WriteAllChangedBytesFromPageToEeprom
252	; Parameters:
253	; AX: Offset to SDP command function
254	; BX: Offset to next destination byte
255	; CX: Number of bytes left to write
256	; SI: Offset to next source byte
257	; ES:DI: Ptr to next comparison byte
258	; SS:BP: Ptr to FLASHVARS
259	; Returns:
260	; CF: Set if polling timeout error
261	; Cleared if page written successfully
262	; Corrupts registers:
263	; AX, BX, CX, DX, SI, DI, DS, ES
264	;--------------------------------------------------------------------
265	ALIGN JUMP_ALIGN
266	WriteAllChangedBytesFromPageToEeprom:
267	mov dx, [bp+FLASHVARS.fpNextSourcePage+2] ; DX = Source segment
268	mov ds, [bp+FLASHVARS.fpNextDestinationPage+2] ; DS = EEPROM segment
269	cli ; Disable interrupts
270	jmp ax ; Write SDP command (once to the beginning of page)
271	ALIGN JUMP_ALIGN
272	ReturnFromSdpCommand:
273	mov ds, dx ; DS:SI now points to source byte
274
275	ALIGN JUMP_ALIGN
276	.WriteActualDataByteAfterSdpCommand:
277	lodsb ; Load source byte to AL
278	scasb ; Compare source byte to comparison byte
279	je SHORT .NoChangesForThisByte
280
281	mov ds, [bp+FLASHVARS.fpNextDestinationPage+2] ; DS:BX now points to EEPROM
282	mov [bx], al ; Write byte to EEPROM
283	mov ds, dx ; Restore DS
284	mov [bp+FLASHVARS.wLastOffsetWritten], bx
285	mov [bp+FLASHVARS.bLastByteWritten], al
286
287	ALIGN JUMP_ALIGN
288	.NoChangesForThisByte:
289	inc bx ; Increment destination offset
290	loop .WriteActualDataByteAfterSdpCommand
291	sti ; Enable interrupts
292	; Fall to WaitUntilEepromPageWriteHasCompleted
293
294
295	;--------------------------------------------------------------------
296	; WaitUntilEepromPageWriteHasCompleted
297	; Parameters:
298	; SS:BP: Ptr to FLASHVARS
299	; Returns:
300	; CF: Set if polling timeout error
301	; Cleared if page written successfully
302	; Corrupts registers:
303	; AX, BX, DI, DS, ES
304	;--------------------------------------------------------------------
305	ALIGN JUMP_ALIGN
306	WaitUntilEepromPageWriteHasCompleted:
307	call .InitializeTimeoutCounterForEepromPollingWithFlashvarsInSSBP
308	mov es, [bp+FLASHVARS.fpNextDestinationPage+2]
309	mov di, [bp+FLASHVARS.wLastOffsetWritten]
310	ALIGN JUMP_ALIGN
311	.PollEeprom:
312	call .HasWriteCycleCompleted
313	je SHORT .PageWriteCompleted ; CF cleared
314	call TimerTicks_GetTimeoutTicksLeftToAXfromDSBX
315	jnc SHORT .PollEeprom
316	ALIGN JUMP_ALIGN
317	.PageWriteCompleted:
318	ret
319
320	;--------------------------------------------------------------------
321	; .InitializeTimeoutCounterForEepromPollingWithFlashvarsInSSBP
322	; Parameters:
323	; SS:BP: Ptr to FLASHVARS
324	; Returns:
325	; DS:BX: Ptr to timeout counter variable
326	; Corrupts registers:
327	; AX
328	;--------------------------------------------------------------------
329	ALIGN JUMP_ALIGN
330	.InitializeTimeoutCounterForEepromPollingWithFlashvarsInSSBP:
331	push ss
332	pop ds
333	lea bx, [bp+FLASHVARS.wTimeoutCounter]
334	mov ax, EEPROM_POLLING_TIMEOUT_TICKS
335	jmp TimerTicks_InitializeTimeoutFromAX
336
337	;--------------------------------------------------------------------
338	; .HasWriteCycleCompleted
339	; Parameters:
340	; ES:DI: Ptr to last written byte in EEPROM
341	; SS:BP: Ptr to FLASHVARS
342	; Returns:
343	; ZF: Set if write cycle has completed
344	; Cleared if write cycle in progress
345	; Corrupts registers:
346	; AX
347	;--------------------------------------------------------------------
348	ALIGN JUMP_ALIGN
349	.HasWriteCycleCompleted:
350	mov ah, [es:di] ; Load byte from EEPROM
351	mov al, [bp+FLASHVARS.bLastByteWritten]
352	and ax, 8080h ; Clear all but bit 7 from both bytes
353	cmp al, ah ; Set ZF if high bits are the same
354	ret
355
356
357	;--------------------------------------------------------------------
358	; DisplayFlashProgressWithPagesLeftInCXandFlashvarsInSSBP
359	; Parameters:
360	; CX: Number of pages left to flash
361	; SS:BP: Ptr to FLASHVARS
362	; Returns:
363	; Nothing
364	; Corrupts registers:
365	; AX, DI
366	;--------------------------------------------------------------------
367	ALIGN JUMP_ALIGN
368	DisplayFlashProgressWithPagesLeftInCXandFlashvarsInSSBP:
369	push bp
370
371	mov ax, [bp+FLASHVARS.wPagesToFlash]
372	sub ax, cx
373	mov bp, [bp+FLASHVARS.wProgressUpdateParam] ; BP now has MENU handle
374	CALL_MENU_LIBRARY SetProgressValueFromAX
375
376	pop bp
377	ret

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source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/Flash.asm@ 576

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