WebSVN – Kolibri OS – Blame – /kernel/trunk/blkdev/cdrom.inc

Rev	Author	Line No.	Line
2288	clevermous	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
		3	;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
		4	;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;;
		5	;; Distributed under terms of the GNU General Public License ;;
		6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		7
		8	$Revision: 2288 $
		9
		10
		11	sys_cd_audio:
		12
		13	cmp word [cdbase], word 0
		14	jnz @f
		15	mov eax, 1
		16	ret
		17	@@:
		18
		19	; eax=1 cdplay at ebx 0x00FFSSMM
		20	; eax=2 get tracklist size of ecx to [ebx]
		21	; eax=3 stop/pause playing
		22
		23	cmp eax, 1
		24	jnz nocdp
		25	call sys_cdplay
		26	ret
		27	nocdp:
		28
		29	cmp eax, 2
		30	jnz nocdtl
		31	mov edi, [TASK_BASE]
		32	add edi, TASKDATA.mem_start
		33	add ebx, [edi]
		34	call sys_cdtracklist
		35	ret
		36	nocdtl:
		37
		38	cmp eax, 3
		39	jnz nocdpause
		40	call sys_cdpause
		41	ret
		42	nocdpause:
		43
		44	mov eax, 0xffffff01
		45	ret
		46
		47
		48
		49	sys_cd_atapi_command:
		50
		51	pushad
		52
		53	mov dx, word [cdbase]
		54	add dx, 6
		55	mov ax, word [cdid]
		56	out dx, al
		57	mov esi, 10
		58	call delay_ms
		59	mov dx, word [cdbase]
		60	add dx, 7
		61	in al, dx
		62	and al, 0x80
		63	cmp al, 0
		64	jnz res
		65	jmp cdl6
		66	res:
		67	mov dx, word [cdbase]
		68	add dx, 7
		69	mov al, 0x8
		70	out dx, al
		71	mov dx, word [cdbase]
		72	add dx, 0x206
		73	mov al, 0xe
		74	out dx, al
		75	mov esi, 1
		76	call delay_ms
		77	mov dx, word [cdbase]
		78	add dx, 0x206
		79	mov al, 0x8
		80	out dx, al
		81	mov esi, 30
		82	call delay_ms
		83	xor cx, cx
		84	cdl5:
		85	inc cx
		86	cmp cx, 10
		87	jz cdl6
		88	mov dx, word [cdbase]
		89	add dx, 7
		90	in al, dx
		91	and al, 0x88
		92	cmp al, 0x00
		93	jz cdl5
		94	mov esi, 100
		95	call delay_ms
		96	jmp cdl5
		97	cdl6:
		98	mov dx, word [cdbase]
		99	add dx, 4
		100	mov al, 0
		101	out dx, al
		102	mov dx, word [cdbase]
		103	add dx, 5
		104	mov al, 0
		105	out dx, al
		106	mov dx, word [cdbase]
		107	add dx, 7
		108	mov al, 0xec
		109	out dx, al
		110	mov esi, 5
		111	call delay_ms
		112	mov dx, word [cdbase]
		113	add dx, 1
		114	mov al, 0
		115	out dx, al
		116	add dx, 1
		117	mov al, 0
		118	out dx, al
		119	add dx, 1
		120	mov al, 0
		121	out dx, al
		122	add dx, 1
		123	mov al, 0
		124	out dx, al
		125	add dx, 1
		126	mov al, 128
		127	out dx, al
		128	add dx, 2
		129	mov al, 0xa0
		130	out dx, al
		131	xor cx, cx
		132	mov dx, word [cdbase]
		133	add dx, 7
		134	cdl1:
		135	inc cx
		136	cmp cx, 100
		137	jz cdl2
		138	in al, dx
		139	and ax, 0x88
		140	cmp al, 0x8
		141	jz cdl2
		142	mov esi, 2
		143	call delay_ms
		144	jmp cdl1
		145	cdl2:
		146
		147	popad
		148	ret
		149
		150
		151	sys_cdplay:
		152
		153	mov ax, 5
		154	push ax
		155	push ebx
		156	cdplay:
		157	call sys_cd_atapi_command
		158	cli
		159	mov dx, word [cdbase]
		160	mov ax, 0x0047
		161	out dx, ax
		162	mov al, 1
		163	mov ah, [esp+0]; min xx
		164	out dx, ax
		165	mov ax, [esp+1]; fr sec
		166	out dx, ax
		167	mov ax, 256+99
		168	out dx, ax
		169	mov ax, 0x0001
		170	out dx, ax
		171	mov ax, 0x0000
		172	out dx, ax
		173	mov esi, 10
		174	call delay_ms
		175	sti
		176	add dx, 7
		177	in al, dx
		178	test al, 1
		179	jz cdplayok
		180	mov ax, [esp+4]
		181	dec ax
		182	mov [esp+4], ax
		183	cmp ax, 0
		184	jz cdplayfail
		185	jmp cdplay
		186	cdplayfail:
		187	cdplayok:
		188	pop ebx
		189	pop ax
		190	xor eax, eax
		191	ret
		192
		193
		194	sys_cdtracklist:
		195
		196	push ebx
		197	tcdplay:
		198	call sys_cd_atapi_command
		199	mov dx, word [cdbase]
		200	mov ax, 0x43+2*256
		201	out dx, ax
		202	mov ax, 0x0
		203	out dx, ax
		204	mov ax, 0x0
		205	out dx, ax
		206	mov ax, 0x0
		207	out dx, ax
		208	mov ax, 200
		209	out dx, ax
		210	mov ax, 0x0
		211	out dx, ax
		212	in al, dx
		213	mov cx, 1000
		214	mov dx, word [cdbase]
		215	add dx, 7
		216	cld
		217	cdtrnwewait:
		218	mov esi, 10
		219	call delay_ms
		220	in al, dx
		221	and al, 128
		222	cmp al, 0
		223	jz cdtrl1
		224	loop cdtrnwewait
		225	cdtrl1:
		226	; read the result
		227	mov ecx, [esp+0]
		228	mov dx, word [cdbase]
		229	cdtrread:
		230	add dx, 7
		231	in al, dx
		232	and al, 8
		233	cmp al, 8
		234	jnz cdtrdone
		235	sub dx, 7
		236	in ax, dx
		237	mov [ecx], ax
		238	add ecx, 2
		239	jmp cdtrread
		240	cdtrdone:
		241	pop ecx
		242	xor eax, eax
		243	ret
		244
		245
		246	sys_cdpause:
		247
		248	call sys_cd_atapi_command
		249
		250	mov dx, word [cdbase]
		251	mov ax, 0x004B
		252	out dx, ax
		253	mov ax, 0
		254	out dx, ax
		255	mov ax, 0
		256	out dx, ax
		257	mov ax, 0
		258	out dx, ax
		259	mov ax, 0
		260	out dx, ax
		261	mov ax, 0
		262	out dx, ax
		263
		264	mov esi, 10
		265	call delay_ms
		266	add dx, 7
		267	in al, dx
		268
		269	xor eax, eax
		270	ret
		271

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(root)/kernel/trunk/blkdev/cdrom.inc – Rev 2288