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source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/Menupages/IdeControllerMenu.asm @ 199

Last change on this file since 199 was 199, checked in by gregli@…, 12 years ago
Adding proper serial port support to the Configurator, which required some minor changes elsewhere. Also added an option, off by default, to automatically scan for serial drives at the end of normal drive detection (no ALT key required, although that is still available if the option is off).
File size: 22.0 KB

Line
1	; Project name : XTIDE Universal BIOS Configurator v2
2	; Description : "IDE Controller" menu structs and functions.
3
4	; Section containing initialized data
5	SECTION .data
6
7	ALIGN WORD_ALIGN
8	g_MenupageForIdeControllerMenu:
9	istruc MENUPAGE
10	at MENUPAGE.fnEnter, dw IdeControllerMenu_EnterMenuOrModifyItemVisibility
11	at MENUPAGE.fnBack, dw ConfigurationMenu_EnterMenuOrModifyItemVisibility
12	at MENUPAGE.wMenuitems, dw 11
13	iend
14
15	g_MenuitemIdeControllerBackToConfigurationMenu:
16	istruc MENUITEM
17	at MENUITEM.fnActivate, dw ConfigurationMenu_EnterMenuOrModifyItemVisibility
18	at MENUITEM.szName, dw g_szItemBackToCfgMenu
19	at MENUITEM.szQuickInfo, dw g_szNfoIdeBackToCfgMenu
20	at MENUITEM.szHelp, dw g_szNfoIdeBackToCfgMenu
21	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE
22	at MENUITEM.bType, db TYPE_MENUITEM_PAGEBACK
23	iend
24
25	g_MenuitemIdeControllerMasterDrive:
26	istruc MENUITEM
27	at MENUITEM.fnActivate, dw MasterDrive
28	at MENUITEM.szName, dw g_szItemIdeMaster
29	at MENUITEM.szQuickInfo, dw g_szNfoIdeMaster
30	at MENUITEM.szHelp, dw g_szNfoIdeMaster
31	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE
32	at MENUITEM.bType, db TYPE_MENUITEM_PAGENEXT
33	iend
34
35	g_MenuitemIdeControllerSlaveDrive:
36	istruc MENUITEM
37	at MENUITEM.fnActivate, dw SlaveDrive
38	at MENUITEM.szName, dw g_szItemIdeSlave
39	at MENUITEM.szQuickInfo, dw g_szNfoIdeSlave
40	at MENUITEM.szHelp, dw g_szNfoIdeSlave
41	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE
42	at MENUITEM.bType, db TYPE_MENUITEM_PAGENEXT
43	iend
44
45	g_MenuitemIdeControllerDevice:
46	istruc MENUITEM
47	at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
48	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI
49	at MENUITEM.szName, dw g_szItemIdeDevice
50	at MENUITEM.szQuickInfo, dw g_szNfoIdeDevice
51	at MENUITEM.szHelp, dw g_szNfoIdeDevice
52	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE \| FLG_MENUITEM_BYTEVALUE \| FLG_MENUITEM_MODIFY_MENU
53	at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
54	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
55	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDevice
56	at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceCfgDevice
57	at MENUITEM.itemValue + ITEM_VALUE.rgwChoiceToValueLookup, dw g_rgwChoiceToValueLookupForDevice
58	at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForDevice
59	at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw IdeControllerMenu_WriteDevice
60	iend
61
62	g_MenuitemIdeControllerCommandBlockAddress:
63	istruc MENUITEM
64	at MENUITEM.fnActivate, dw Menuitem_ActivateHexInputForMenuitemInDSSI
65	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteHexValueStringToBufferInESDIfromItemInDSSI
66	at MENUITEM.szName, dw g_szItemIdeCmdPort
67	at MENUITEM.szQuickInfo, dw g_szNfoIdeCmdPort
68	at MENUITEM.szHelp, dw g_szHelpIdeCmdPort
69	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE
70	at MENUITEM.bType, db TYPE_MENUITEM_HEX
71	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
72	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgIdeCmdPort
73	at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 0
74	at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw -1
75	iend
76
77	g_MenuitemIdeControllerControlBlockAddress:
78	istruc MENUITEM
79	at MENUITEM.fnActivate, dw Menuitem_ActivateHexInputForMenuitemInDSSI
80	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteHexValueStringToBufferInESDIfromItemInDSSI
81	at MENUITEM.szName, dw g_szItemIdeCtrlPort
82	at MENUITEM.szQuickInfo, dw g_szNfoIdeCtrlPort
83	at MENUITEM.szHelp, dw g_szHelpIdeCtrlPort
84	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE
85	at MENUITEM.bType, db TYPE_MENUITEM_HEX
86	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
87	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgIdeCtrlPort
88	at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 0
89	at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw -1
90	iend
91
92	g_MenuitemIdeControllerSerialCOM:
93	istruc MENUITEM
94	at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
95	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromUnshiftedItemInDSSI
96	at MENUITEM.szName, dw g_szItemSerialCOM
97	at MENUITEM.szQuickInfo, dw g_szNfoIdeSerialCOM
98	at MENUITEM.szHelp, dw g_szHelpIdeSerialCOM
99	at MENUITEM.bFlags, db FLG_MENUITEM_MODIFY_MENU
100	at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
101	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
102	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDevice
103	at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szSerialCOMChoice
104	at MENUITEM.itemValue + ITEM_VALUE.rgwChoiceToValueLookup, dw NULL
105	at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForCOM
106	at MENUITEM.itemValue + ITEM_VALUE.fnValueReader, dw IdeControllerMenu_SerialReadCOM
107	at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw IdeControllerMenu_SerialWriteCOM
108	iend
109
110	g_MenuitemIdeControllerSerialPort:
111	istruc MENUITEM
112	at MENUITEM.fnActivate, dw Menuitem_ActivateHexInputForMenuitemInDSSI
113	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteHexValueStringToBufferInESDIfromItemInDSSI
114	at MENUITEM.szName, dw g_szItemSerialPort
115	at MENUITEM.szQuickInfo, dw g_szNfoIdeSerialPort
116	at MENUITEM.szHelp, dw g_szHelpIdeSerialPort
117	at MENUITEM.bFlags, db FLG_MENUITEM_MODIFY_MENU
118	at MENUITEM.bType, db TYPE_MENUITEM_HEX
119	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
120	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgIdeCmdPort
121	at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 240h
122	at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 438h
123	at MENUITEM.itemValue + ITEM_VALUE.fnValueReader, dw IdeControllerMenu_SerialReadPort
124	at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw IdeControllerMenu_SerialWritePort
125	iend
126
127	g_MenuitemIdeControllerSerialBaud:
128	istruc MENUITEM
129	at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
130	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromUnshiftedItemInDSSI
131	at MENUITEM.szName, dw g_szItemSerialBaud
132	at MENUITEM.szQuickInfo, dw g_szNfoIdeSerialBaud
133	at MENUITEM.szHelp, dw g_szHelpIdeSerialBaud
134	at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
135	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
136	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgDevice
137	at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szSerialBaudChoice
138	at MENUITEM.itemValue + ITEM_VALUE.rgwChoiceToValueLookup, dw NULL
139	at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForBaud
140	at MENUITEM.itemValue + ITEM_VALUE.fnValueReader, dw IdeControllerMenu_SerialReadBaud
141	at MENUITEM.itemValue + ITEM_VALUE.fnValueWriter, dw IdeControllerMenu_SerialWriteBaud
142	iend
143
144	g_MenuitemIdeControllerEnableInterrupt:
145	istruc MENUITEM
146	at MENUITEM.fnActivate, dw Menuitem_ActivateMultichoiceSelectionForMenuitemInDSSI
147	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteLookupValueStringToBufferInESDIfromShiftedItemInDSSI
148	at MENUITEM.szName, dw g_szItemIdeEnIRQ
149	at MENUITEM.szQuickInfo, dw g_szNfoIdeEnIRQ
150	at MENUITEM.szHelp, dw g_szHelpIdeEnIRQ
151	at MENUITEM.bFlags, db FLG_MENUITEM_VISIBLE \| FLG_MENUITEM_MODIFY_MENU \| FLG_MENUITEM_FLAGVALUE
152	at MENUITEM.bType, db TYPE_MENUITEM_MULTICHOICE
153	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
154	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgIdeEnIRQ
155	at MENUITEM.itemValue + ITEM_VALUE.szMultichoice, dw g_szMultichoiceBooleanFlag
156	at MENUITEM.itemValue + ITEM_VALUE.rgszValueToStringLookup, dw g_rgszValueToStringLookupForFlagBooleans
157	at MENUITEM.itemValue + ITEM_VALUE.wValueBitmask, dw 15
158	iend
159
160	g_MenuitemIdeControllerIdeIRQ:
161	istruc MENUITEM
162	at MENUITEM.fnActivate, dw Menuitem_ActivateUnsignedInputForMenuitemInDSSI
163	at MENUITEM.fnFormatValue, dw MenuitemPrint_WriteUnsignedValueStringToBufferInESDIfromItemInDSSI
164	at MENUITEM.szName, dw g_szItemIdeIRQ
165	at MENUITEM.szQuickInfo, dw g_szNfoIdeIRQ
166	at MENUITEM.szHelp, dw g_szHelpIdeIRQ
167	at MENUITEM.bFlags, db FLG_MENUITEM_BYTEVALUE
168	at MENUITEM.bType, db TYPE_MENUITEM_UNSIGNED
169	at MENUITEM.itemValue + ITEM_VALUE.wRomvarsValueOffset, dw NULL
170	at MENUITEM.itemValue + ITEM_VALUE.szDialogTitle, dw g_szDlgIdeIRQ
171	at MENUITEM.itemValue + ITEM_VALUE.wMinValue, dw 2
172	at MENUITEM.itemValue + ITEM_VALUE.wMaxValue, dw 15
173	iend
174
175	g_rgwChoiceToValueLookupForDevice:
176	dw DEVICE_8BIT_DUAL_PORT_XTIDE
177	dw DEVICE_XTIDE_WITH_REVERSED_A3_AND_A0
178	dw DEVICE_8BIT_SINGLE_PORT
179	dw DEVICE_16BIT_ATA
180	dw DEVICE_32BIT_ATA
181	dw DEVICE_SERIAL_PORT
182	g_rgszValueToStringLookupForDevice:
183	dw g_szValueCfgDeviceDual8b
184	dw g_szValueCfgDeviceMod
185	dw g_szValueCfgDeviceSingle8b
186	dw g_szValueCfgDevice16b
187	dw g_szValueCfgDevice32b
188	dw g_szValueCfgDeviceSerial
189
190	g_rgszValueToStringLookupForCOM:
191	dw g_szValueCfgCOM1
192	dw g_szValueCfgCOM2
193	dw g_szValueCfgCOM3
194	dw g_szValueCfgCOM4
195	dw g_szValueCfgCOM5
196	dw g_szValueCfgCOM6
197	dw g_szValueCfgCOM7
198	dw g_szValueCfgCOM8
199	dw g_szValueCfgCOM9
200	dw g_szValueCfgCOMA
201	dw g_szValueCfgCOMB
202	dw g_szValueCfgCOMC
203	dw g_szValueCfgCOMx
204
205	g_rgszValueToStringLookupForBaud:
206	dw g_szValueCfgBaud2400
207	dw g_szValueCfgBaud9600
208	dw g_szValueCfgBaud38_4
209	dw g_szValueCfgBaud115_2
210
211	g_wPrintBaud:
212	dw DEVICE_SERIAL_PRINTBAUD_2400
213	dw DEVICE_SERIAL_PRINTBAUD_9600
214	dw DEVICE_SERIAL_PRINTBAUD_38_4
215	dw DEVICE_SERIAL_PRINTBAUD_115_2
216
217	; Section containing code
218	SECTION .text
219
220	;--------------------------------------------------------------------
221	; IdeControllerMenu_InitializeToIdevarsOffsetInBX
222	; Parameters:
223	; SS:BP: Menu handle
224	; Returns:
225	; Nothing
226	; Corrupts registers:
227	; AX
228	;--------------------------------------------------------------------
229	ALIGN JUMP_ALIGN
230	IdeControllerMenu_InitializeToIdevarsOffsetInBX:
231	lea ax, [bx+IDEVARS.drvParamsMaster]
232	mov [cs:g_MenuitemIdeControllerMasterDrive+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
233
234	lea ax, [bx+IDEVARS.drvParamsSlave]
235	mov [cs:g_MenuitemIdeControllerSlaveDrive+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
236
237	lea ax, [bx+IDEVARS.bDevice]
238	mov [cs:g_MenuitemIdeControllerDevice+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
239
240	lea ax, [bx+IDEVARS.wPort]
241	mov [cs:g_MenuitemIdeControllerCommandBlockAddress+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
242	mov [cs:g_MenuitemIdeControllerSerialPort+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
243	mov [cs:g_MenuitemIdeControllerSerialCOM+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
244	mov [cs:g_MenuitemIdeControllerSerialBaud+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
245	;; baud also modifies the next two bytes (print chars in wPortCtrl), but it never reads them
246
247	lea ax, [bx+IDEVARS.wPortCtrl]
248	mov [cs:g_MenuitemIdeControllerControlBlockAddress+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
249
250	lea ax, [bx+IDEVARS.bIRQ]
251	mov [cs:g_MenuitemIdeControllerEnableInterrupt+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
252	mov [cs:g_MenuitemIdeControllerIdeIRQ+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset], ax
253
254	ret
255
256
257	;--------------------------------------------------------------------
258	; IdeControllerMenu_EnterMenuOrModifyItemVisibility
259	; Parameters:
260	; SS:BP: Menu handle
261	; Returns:
262	; Nothing
263	; Corrupts registers:
264	; All, except BP
265	;--------------------------------------------------------------------
266	ALIGN JUMP_ALIGN
267	IdeControllerMenu_EnterMenuOrModifyItemVisibility:
268	push cs
269	pop ds
270	call .EnableOrDisableIRQ
271	call .EnableOrDisableSerial
272	mov si, g_MenupageForIdeControllerMenu
273	jmp Menupage_ChangeToNewMenupageInDSSI
274
275	;--------------------------------------------------------------------
276	; .EnableOrDisableIRQ
277	; Parameters:
278	; SS:BP: Menu handle
279	; Returns:
280	; Nothing
281	; Corrupts registers:
282	; AX, BX
283	;--------------------------------------------------------------------
284	ALIGN JUMP_ALIGN
285	.EnableOrDisableIRQ:
286	mov bx, [cs:g_MenuitemIdeControllerEnableInterrupt+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
287	call Buffers_GetRomvarsValueToAXfromOffsetInBX
288	mov bx, g_MenuitemIdeControllerIdeIRQ
289	test al, al
290	jz SHORT .DisableMenuitemFromCSBX
291	; Fall to .EnableMenuitemFromCSBX
292
293	;--------------------------------------------------------------------
294	; .EnableMenuitemFromCSBX
295	; .DisableMenuitemFromCSBX
296	; Parameters:
297	; CS:BX: Ptr to MENUITEM
298	; Returns:
299	; Nothing
300	; Corrupts registers:
301	; Nothing
302	;--------------------------------------------------------------------
303	ALIGN JUMP_ALIGN
304	.EnableMenuitemFromCSBX:
305	or BYTE [cs:bx+MENUITEM.bFlags], FLG_MENUITEM_VISIBLE
306	ret
307
308	ALIGN JUMP_ALIGN
309	.DisableMenuitemFromCSBX:
310	and BYTE [cs:bx+MENUITEM.bFlags], ~FLG_MENUITEM_VISIBLE
311	ret
312
313	.EnableOrDisableSerial:
314	mov bx, g_MenuitemIdeControllerCommandBlockAddress
315	call .DisableMenuitemFromCSBX
316
317	mov bx, g_MenuitemIdeControllerControlBlockAddress
318	call .DisableMenuitemFromCSBX
319
320	mov bx, g_MenuitemIdeControllerEnableInterrupt
321	call .DisableMenuitemFromCSBX
322
323	mov bx, g_MenuitemIdeControllerSerialBaud
324	call .DisableMenuitemFromCSBX
325
326	mov bx, g_MenuitemIdeControllerSerialCOM
327	call .DisableMenuitemFromCSBX
328
329	mov bx, g_MenuitemIdeControllerSerialPort
330	call .DisableMenuitemFromCSBX
331
332	mov bx, [cs:g_MenuitemIdeControllerDevice+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
333	call Buffers_GetRomvarsValueToAXfromOffsetInBX
334	cmp al,DEVICE_SERIAL_PORT
335	jnz .DisableAllSerial
336
337	mov bx, g_MenuitemIdeControllerSerialCOM
338	call .EnableMenuitemFromCSBX
339
340	mov bx, g_MenuitemIdeControllerSerialBaud
341	call .EnableMenuitemFromCSBX
342
343	mov bx, [cs:g_MenuitemIdeControllerSerialCOM+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
344	call Buffers_GetRomvarsValueToAXfromOffsetInBX
345	mov bx, g_MenuitemIdeControllerSerialPort
346	cmp al,'x'
347	jz .EnableMenuitemFromCSBX
348	jmp .DisableMenuitemFromCSBX
349
350	.DisableAllSerial:
351
352	mov bx, g_MenuitemIdeControllerCommandBlockAddress
353	call .EnableMenuitemFromCSBX
354
355	mov bx, g_MenuitemIdeControllerControlBlockAddress
356	call .EnableMenuitemFromCSBX
357
358	mov bx, g_MenuitemIdeControllerEnableInterrupt
359	call .EnableMenuitemFromCSBX
360
361	ret
362
363	;--------------------------------------------------------------------
364	; MENUITEM activation functions (.fnActivate)
365	; Parameters:
366	; SS:BP: Ptr to MENU
367	; Returns:
368	; Nothing
369	; Corrupts registers:
370	; All, except segments
371	;--------------------------------------------------------------------
372	ALIGN JUMP_ALIGN
373	MasterDrive:
374	mov bx, [cs:g_MenuitemIdeControllerMasterDrive+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
375	jmp SHORT DisplayMasterSlaveMenu
376
377	ALIGN JUMP_ALIGN
378	SlaveDrive:
379	mov bx, [cs:g_MenuitemIdeControllerSlaveDrive+MENUITEM.itemValue+ITEM_VALUE.wRomvarsValueOffset]
380	; Fall to DisplayMasterSlaveMenu
381
382	ALIGN JUMP_ALIGN
383	DisplayMasterSlaveMenu:
384	call MasterSlaveMenu_InitializeToDrvparamsOffsetInBX
385	jmp MasterSlaveMenu_EnterMenuOrModifyItemVisibility
386
387	PackedCOMPortAddresses: ; COM1 - COMC (or COM12)
388	db (DEVICE_SERIAL_COM1 - DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT) >> 1
389	db (DEVICE_SERIAL_COM2 - DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT) >> 1
390	db (DEVICE_SERIAL_COM3 - DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT) >> 1
391	db (DEVICE_SERIAL_COM4 - DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT) >> 1
392	db (DEVICE_SERIAL_COM5 - DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT) >> 1
393	db (DEVICE_SERIAL_COM6 - DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT) >> 1
394	db (DEVICE_SERIAL_COM7 - DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT) >> 1
395	db (DEVICE_SERIAL_COM8 - DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT) >> 1
396	db (DEVICE_SERIAL_COM9 - DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT) >> 1
397	db (DEVICE_SERIAL_COMA - DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT) >> 1
398	db (DEVICE_SERIAL_COMB - DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT) >> 1
399	db (DEVICE_SERIAL_COMC - DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT) >> 1
400	db 0 ; null terminated
401
402	;------------------------------------------------------------------------------------------
403	;
404	; Reader/Writer Routines
405	;
406	; For serial drives, we pack the port number and baud rate into a single byte, and thus
407	; we need to take care to properly read/write just the bits we need. In addition, since
408	; we use the Port/PortCtrl bytes in a special way for serial drives, we need to properly
409	; default the values stored in both these words when switching in and out of the Serial
410	; device choice.
411	;
412	; Writers:
413	; Parameters:
414	; AX: Value that the MENUITEM system was interacting with
415	; ES:DI: ROMVARS location where the value is to be stored
416	; DS:SI: MENUITEM pointer
417	; Returns:
418	; AX: Value to actually write to ROMVARS
419	; Corrupts registers:
420	; AX
421	;
422	; Readers:
423	; Parameters:
424	; AX: Value read from the ROMVARS location
425	; ES:DI: ROMVARS location where the value was just read from
426	; DS:SI: MENUITEM pointer
427	; Returns:
428	; AX: Value that the MENUITEM system will interact with and display
429	; Corrupts registers:
430	; AX
431	;
432
433	;
434	; No change to Device byte, but use this opportunity to change defaults stored in wPort and wPortCtrl if we are
435	; changing in/out of a Serial device (since we use these bytes in radically different ways). Also clear the
436	; interrupt informtion is we are moving into Serial (since the serial device does not use interrupts).
437	;
438	ALIGN JUMP_ALIGN
439	IdeControllerMenu_WriteDevice:
440	push ax
441	push bx
442	push di
443
444	mov bl,[es:di] ; what is the current Device?
445
446	add di,IDEVARS.wPort - IDEVARS.bDevice ; Get ready to set the Port addresses
447
448	cmp al,DEVICE_SERIAL_PORT
449	jz .changingToSerial
450
451	cmp bl,DEVICE_SERIAL_PORT
452	jnz .done ; if we weren't Serial before, nothing to do
453
454	.changingFromSerial:
455	cmp al,DEVICE_16BIT_ATA
456	jl .xtide
457
458	mov ax,DEVICE_ATA_DEFAULT_PORT ; Defaults for 16-bit and better ATA devices
459	mov bx,DEVICE_ATA_DEFAULT_PORTCTRL
460	jmp .writeNonSerial
461
462	.xtide:
463	mov ax,DEVICE_XTIDE_DEFAULT_PORT ; Defaults for 8-bit XTIDE devices
464	mov bx,DEVICE_XTIDE_DEFAULT_PORTCTRL
465
466	.writeNonSerial:
467	mov [es:di],ax ; Store defaults in IDEVARS.wPort and IDEVARS.wPortCtrl
468	mov [es:di+2],bx
469
470	jmp .done
471
472	.changingToSerial:
473	cmp bl,DEVICE_SERIAL_PORT
474	jz .done ; if we were already serial, nothing to do
475
476	mov ax,DEVICE_SERIAL_DEFAULT_COM
477	call IdeControllerMenu_SerialWriteCOM
478	mov [es:di],ax
479
480	mov ax,DEVICE_SERIAL_DEFAULT_BAUD
481	call IdeControllerMenu_SerialWriteBaud
482	mov [es:di],ax
483
484	add di,IDEVARS.bIRQ - IDEVARS.wPort ; clear out the interrupt information, we don't use interrupts
485	mov al,0
486	mov [es:di],al
487
488	.done:
489	pop di
490	pop bx
491	pop ax
492
493	ret
494
495	;
496	; "COMn" ASCII characer -> Numeric COM number
497	;
498	ALIGN JUMP_ALIGN
499	IdeControllerMenu_SerialReadCOM:
500	xor ah,ah ; clear out packedportbaud value
501
502	cmp al,'x' ; base this on the ASCII character used to print
503	jz .custom
504
505	cmp al,'A'
506	jae .over10
507
508	sub al, '0'+1 ; convert ASCII value '0'-'9' to numeric
509	ret
510
511	.over10:
512	sub al, 'A'-10+1 ; convert ASCII value 'A'-'C' to numeric
513	ret
514
515	.custom:
516	mov al, 12 ; convert ASCII value 'x' (for custom) to numeric
517	ret
518
519	;
520	; Numeric COM number -> Packed port address, and update ASCII character for printing "COMn"
521	;
522	ALIGN JUMP_ALIGN
523	IdeControllerMenu_SerialWriteCOM:
524	push bx
525
526	cmp al,12 ; custom?
527	jge .custom
528
529	mov bx,ax ; lookup packed port address based on COM address
530	mov ah,[cs:bx+PackedCOMPortAddresses]
531
532	cmp al,9 ; COMA or higher, but not custom
533	jge .atorabove10
534
535	add al, '0'+1 ; convert numeric to ASCII '1' to '9'
536	jmp IdeControllerMenu_SerialWriteCOM_PackAndRet
537
538	.custom:
539	mov al,'x' ; ASCII value 'x' for custom
540	mov ah,0 ; 240h is default custom value
541	jmp IdeControllerMenu_SerialWriteCOM_PackAndRet
542
543	.atorabove10:
544	add al, 'A'-10+1 ; convert numeric to ASCII 'A' to 'C'
545
546	IdeControllerMenu_SerialWriteCOM_PackAndRet:
547	mov bl,[es:di+1] ; read baud rate bits
548	and bl,DEVICE_SERIAL_PACKEDPORTANDBAUD_BAUDMASK
549	or ah,bl
550
551	pop bx
552	ret
553
554	;
555	; Packed Baud -> Numeric Baud
556	;
557	ALIGN JUMP_ALIGN
558	IdeControllerMenu_SerialReadBaud:
559	xchg al,ah
560	and ax,DEVICE_SERIAL_PACKEDPORTANDBAUD_BAUDMASK ; also clears high order byte
561	ret
562
563	;
564	; Numeric Baud -> Packed Baud, also update ASCII printing characters for baud rate
565	;
566	ALIGN JUMP_ALIGN
567	IdeControllerMenu_SerialWriteBaud:
568	and ax,DEVICE_SERIAL_PACKEDPORTANDBAUD_BAUDBITS ; ensure we only have the bits we want
569
570	push bx
571
572	mov bx,ax ; lookup printing word for wPortCtrl
573	shl bx,1
574	mov bx,[cs:bx+g_wPrintBaud]
575	mov [es:di+2],bx
576
577	xchg al,ah ; or in port bits
578	mov bx,[es:di]
579	and bh,DEVICE_SERIAL_PACKEDPORTANDBAUD_PORTMASK
580	or ax,bx
581
582	pop bx
583	ret
584
585	;
586	; Packed Port -> Numeric Port
587	;
588	ALIGN JUMP_ALIGN
589	IdeControllerMenu_SerialReadPort:
590	mov al,ah
591	and ax,DEVICE_SERIAL_PACKEDPORTANDBAUD_PORTMASK ; note that this clears AH
592	shl ax,1
593	add ax,DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT
594	ret
595
596	;
597	; Numeric Port -> Packed Port, convert from Custom to a defined COM port if we match one
598	;
599	ALIGN JUMP_ALIGN
600	IdeControllerMenu_SerialWritePort:
601	push bx
602
603	sub ax,DEVICE_SERIAL_PACKEDPORTANDBAUD_STARTINGPORT ; convert from numeric to packed port number
604	shr ax,1
605	and al,DEVICE_SERIAL_PACKEDPORTANDBAUD_PORTMASK
606
607	mov bx,PackedCOMPortAddresses ; loop, looking for port address in known COM address list
608	.next:
609	mov ah,[cs:bx]
610	inc bx
611	test ah,ah
612	jz .notfound
613	cmp al,ah
614	jnz .next
615
616	sub bx,PackedCOMPortAddresses + 1 ; FOUND!, +1 since we already incremented
617	mov ax,bx
618	pop bx
619	jmp IdeControllerMenu_SerialWriteCOM ; if found, use that logic to get ASCII character
620
621	.notfound:
622	xchg ah,al
623	mov al,'x'
624	jmp IdeControllerMenu_SerialWriteCOM_PackAndRet
625
626

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