Context Navigation

source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Src/Device/Device.asm@ 257

Visit:

Last change on this file since 257 was 249, checked in by aitotat@…, 13 years ago

Changes to XTIDE Universal BIOS:

Number of successfully transferred sectors is now returned by all transfer functions (instead of requested sector count).
Added INT 19h handler for proper reboot.

File size: 7.1 KB

Rev	Line
[150]	1	; Project name : XTIDE Universal BIOS
	2	; Description : Command and port direction functions for different device types.
	3
	4	; Section containing code
	5	SECTION .text
	6
[238]	7
	8	%macro TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE 1
	9	test BYTE [di+DPT.bFlagsHigh], FLGH_DPT_SERIAL_DEVICE
	10	jnz SHORT %1
	11	%endmacro
	12
	13	%macro CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE 1
	14	eMOVZX bx, [di+DPT.bIdevarsOffset]
	15	cmp BYTE [cs:bx+IDEVARS.bDevice], DEVICE_JRIDE_ISA
	16	je SHORT %1
	17	%endmacro
	18
	19	%macro CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF 2
	20	cmp BYTE [cs:bp+IDEVARS.bDevice], %1
	21	je SHORT %2
	22	%endmacro
	23
	24
	25
[150]	26	;--------------------------------------------------------------------
	27	; Device_FinalizeDPT
	28	; Parameters:
	29	; DS:DI: Ptr to Disk Parameter Table
	30	; ES:SI: Ptr to 512-byte ATA information read from the drive
[160]	31	; CS:BP: Ptr to IDEVARS for the controller
[150]	32	; Returns:
	33	; Nothing
	34	; Corrupts registers:
	35	; AX, BX, CX, DX
	36	;--------------------------------------------------------------------
[181]	37	%ifdef MODULE_SERIAL
[150]	38	Device_FinalizeDPT:
[238]	39	TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE .FinalizeDptForSerialPortDevice
[150]	40	jmp IdeDPT_Finalize
[175]	41	.FinalizeDptForSerialPortDevice:
[181]	42	jmp SerialDPT_Finalize
[238]	43
	44	%else ; IDE or JR-IDE/ISA
[181]	45	Device_FinalizeDPT EQU IdeDPT_Finalize
[175]	46	%endif
[150]	47
[181]	48
[150]	49	;--------------------------------------------------------------------
	50	; Device_ResetMasterAndSlaveController
	51	; Parameters:
	52	; DS:DI: Ptr to DPT (in RAMVARS segment)
	53	; Returns:
	54	; AH: INT 13h Error Code
	55	; CF: Cleared if success, Set if error
	56	; Corrupts registers:
	57	; AL, BX, CX, DX
	58	;--------------------------------------------------------------------
[238]	59	%ifdef MODULE_JRIDE
	60	%ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial
	61	Device_ResetMasterAndSlaveController:
	62	TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort
	63	CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .ResetJrIDE
	64	jmp IdeCommand_ResetMasterAndSlaveController
	65
	66	%else ; IDE + JR-IDE/ISA
	67	Device_ResetMasterAndSlaveController:
	68	CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .ResetJrIDE
	69	jmp IdeCommand_ResetMasterAndSlaveController
	70	%endif
	71
	72	%elifdef MODULE_SERIAL ; IDE + Serial
[150]	73	Device_ResetMasterAndSlaveController:
[238]	74	TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort
[181]	75	jmp IdeCommand_ResetMasterAndSlaveController
[238]	76
	77	%else ; IDE
[181]	78	Device_ResetMasterAndSlaveController EQU IdeCommand_ResetMasterAndSlaveController
[175]	79	%endif
[150]	80
[238]	81	%ifdef MODULE_JRIDE
	82	.ResetJrIDE:
	83	jmp MemIdeCommand_ResetMasterAndSlaveController
	84	%endif
[150]	85
[238]	86
[150]	87	;--------------------------------------------------------------------
	88	; Device_IdentifyToBufferInESSIwithDriveSelectByteInBH
	89	; Parameters:
	90	; BH: Drive Select byte for Drive and Head Select Register
	91	; DS: Segment to RAMVARS
[218]	92	; ES:SI: Ptr to normalized buffer to receive 512-byte IDE Information
[150]	93	; CS:BP: Ptr to IDEVARS
	94	; Returns:
	95	; AH: INT 13h Error Code
	96	; CF: Cleared if success, Set if error
	97	; Corrupts registers:
	98	; AL, BL, CX, DX, SI, DI, ES
	99	;--------------------------------------------------------------------
[238]	100	%ifdef MODULE_JRIDE
	101	%ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial
	102	Device_IdentifyToBufferInESSIwithDriveSelectByteInBH:
	103	CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_SERIAL_PORT, .IdentifyDriveFromSerialPort
	104	CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_JRIDE_ISA, .IdentifyDriveFromJrIde
	105	jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
	106
	107	%else ; IDE + JR-IDE/ISA
	108	Device_IdentifyToBufferInESSIwithDriveSelectByteInBH:
	109	CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_JRIDE_ISA, .IdentifyDriveFromJrIde
	110	jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
	111	%endif
	112
	113	%elifdef MODULE_SERIAL ; IDE + Serial
[150]	114	Device_IdentifyToBufferInESSIwithDriveSelectByteInBH:
[238]	115	CMP_USING_IDEVARS_IN_CSBP_AND_JUMP_IF DEVICE_SERIAL_PORT, .IdentifyDriveFromSerialPort
[150]	116	jmp IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
[181]	117
[238]	118	%else ; IDE
	119	Device_IdentifyToBufferInESSIwithDriveSelectByteInBH EQU IdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
	120	%endif
	121
	122	%ifdef MODULE_JRIDE
	123	.IdentifyDriveFromJrIde:
	124	jmp MemIdeCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
	125	%endif
	126
	127	%ifdef MODULE_SERIAL
[150]	128	.IdentifyDriveFromSerialPort:
	129	jmp SerialCommand_IdentifyDeviceToBufferInESSIwithDriveSelectByteInBH
[175]	130	%endif
[150]	131
[181]	132
[150]	133	;--------------------------------------------------------------------
	134	; Device_OutputCommandWithParameters
	135	; Parameters:
	136	; BH: Default system timer ticks for timeout (can be ignored)
	137	; BL: IDE Status Register bit to poll after command
[218]	138	; ES:SI: Ptr to normalized buffer (for data transfer commands)
[150]	139	; DS:DI: Ptr to DPT (in RAMVARS segment)
	140	; SS:BP: Ptr to IDEPACK
	141	; Returns:
	142	; AH: INT 13h Error Code
[249]	143	; CX: Number of successfully transferred sectors (for transfer commands)
[150]	144	; CF: Cleared if success, Set if error
	145	; Corrupts registers:
[249]	146	; AL, BX, (CX), DX, (ES:SI for data transfer commands)
[150]	147	;--------------------------------------------------------------------
[238]	148	%ifdef MODULE_JRIDE
	149	%ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial
	150	Device_OutputCommandWithParameters:
	151	TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE .OutputCommandToSerialPort
	152	CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .OutputCommandToJrIDE
	153	jmp IdeCommand_OutputWithParameters
	154
	155	%else ; IDE + JR-IDE/ISA
	156	Device_OutputCommandWithParameters:
	157	CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .OutputCommandToJrIDE
	158	jmp IdeCommand_OutputWithParameters
	159	%endif
	160
	161	%elifdef MODULE_SERIAL ; IDE + Serial
[150]	162	Device_OutputCommandWithParameters:
[238]	163	TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE .OutputCommandToSerialPort
[150]	164	jmp IdeCommand_OutputWithParameters
[181]	165
[238]	166	%else ; IDE
	167	Device_OutputCommandWithParameters EQU IdeCommand_OutputWithParameters
	168	%endif
	169
	170	%ifdef MODULE_JRIDE
[150]	171	ALIGN JUMP_ALIGN
[238]	172	.OutputCommandToJrIDE:
	173	jmp MemIdeCommand_OutputWithParameters
	174	%endif
	175
	176	%ifdef MODULE_SERIAL
	177	ALIGN JUMP_ALIGN
[150]	178	.OutputCommandToSerialPort:
	179	jmp SerialCommand_OutputWithParameters
[175]	180	%endif
[150]	181
[181]	182
[150]	183	;--------------------------------------------------------------------
	184	; Device_SelectDrive
	185	; Parameters:
	186	; DS:DI: Ptr to DPT (in RAMVARS segment)
	187	; SS:BP: Ptr to IDEPACK
	188	; Returns:
	189	; AH: INT 13h Error Code
	190	; CF: Cleared if success, Set if error
	191	; Corrupts registers:
	192	; AL, BX, CX, DX
	193	;--------------------------------------------------------------------
[238]	194	%ifdef MODULE_JRIDE
	195	%ifdef MODULE_SERIAL ; IDE + JR-IDE/ISA + Serial
	196	Device_SelectDrive:
	197	TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort
	198	CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .SelectJrIdeDrive
	199	jmp IdeCommand_SelectDrive
	200
	201	%else ; IDE + JR-IDE/ISA
	202	Device_SelectDrive:
	203	CMP_USING_DPT_AND_JUMP_IF_JRIDE_DEVICE .SelectJrIdeDrive
	204	jmp IdeCommand_SelectDrive
	205	%endif
	206
	207	%elifdef MODULE_SERIAL ; IDE + Serial
[150]	208	Device_SelectDrive:
[238]	209	TEST_USIGN_DPT_AND_JUMP_IF_SERIAL_DEVICE ReturnSuccessForSerialPort
[150]	210	jmp IdeCommand_SelectDrive
[181]	211
[238]	212	%else ; IDE
	213	Device_SelectDrive EQU IdeCommand_SelectDrive
	214	%endif
	215
	216	%ifdef MODULE_JRIDE
	217	ALIGN JUMP_ALIGN
	218	.SelectJrIdeDrive:
	219	jmp MemIdeCommand_SelectDrive
	220	%endif
	221
	222	%ifdef MODULE_SERIAL
	223	ALIGN JUMP_ALIGN
[150]	224	ReturnSuccessForSerialPort:
	225	xor ax, ax
	226	ret
[175]	227	%endif

Note: See TracBrowser for help on using the repository browser.

Download in other formats: