WebSVN – Kolibri OS – Blame – /drivers/audio/vt823x.asm

Rev	Author	Line No.	Line
2288	clevermous	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
5363	yogev_ezra	3	;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
2288	clevermous	4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		7
5077	clevermous	8	format PE DLL native 0.05
		9	entry START
2288	clevermous	10
		11	DEBUG equ 1
		12
		13	API_VERSION equ 0x01000100
		14
		15	IRQ_REMAP equ 0
		16	IRQ_LINE equ 0
		17
		18
7584	clevermous	19	;irq 0,13 unavailable
2288	clevermous	20	; FEDCBA9876543210
7584	clevermous	21	VALID_IRQ equ 1101111111111110b
2288	clevermous	22
		23	CPU_FREQ equ 2600d
		24
		25	BIT0 EQU 0x00000001
		26	BIT1 EQU 0x00000002
		27	BIT5 EQU 0x00000020
		28	BIT10 EQU 0x00000400
		29
		30	VID_VIA equ 0x1106
		31
		32	CTRL_VT82C686 equ 0x3058
		33	CTRL_VT8233_5 equ 0x3059
		34
		35
		36	CODEC_MASTER_VOL_REG equ 0x02
		37	CODEC_AUX_VOL equ 0x04 ;
		38	CODEC_PCM_OUT_REG equ 0x18 ; PCM output volume
		39	CODEC_EXT_AUDIO_REG equ 0x28 ; extended audio
		40	CODEC_EXT_AUDIO_CTRL_REG equ 0x2a ; extended audio control
		41	CODEC_PCM_FRONT_DACRATE_REG equ 0x2c ; PCM out sample rate
		42	CODEC_PCM_SURND_DACRATE_REG equ 0x2e ; surround sound sample rate
		43	CODEC_PCM_LFE_DACRATE_REG equ 0x30 ; LFE sample rate
		44
		45
		46	;VIA host controller registers set
		47	;; common offsets
		48	VIA_REG_OFFSET_STATUS equ 0x00 ;; byte - channel status
		49	VIA_REG_STAT_ACTIVE equ 0x80 ;; RO
		50	VIA_REG_STAT_PAUSED equ 0x40 ;; RO
		51	VIA_REG_STAT_TRIGGER_QUEUED equ 0x08 ;; RO
		52	VIA_REG_STAT_STOPPED equ 0x04 ;; RWC
		53	VIA_REG_STAT_EOL equ 0x02 ;; RWC
		54	VIA_REG_STAT_FLAG equ 0x01 ;; RWC
		55	VIA_REG_OFFSET_CONTROL equ 0x01 ;; byte - channel control
		56	VIA_REG_CTRL_START equ 0x80 ;; WO
		57	VIA_REG_CTRL_TERMINATE equ 0x40 ;; WO
		58	VIA_REG_CTRL_AUTOSTART equ 0x20
		59	VIA_REG_CTRL_PAUSE equ 0x08 ;; RW
		60	VIA_REG_CTRL_INT_STOP equ 0x04
		61	VIA_REG_CTRL_INT_EOL equ 0x02
		62	VIA_REG_CTRL_INT_FLAG equ 0x01
		63	VIA_REG_CTRL_RESET equ 0x01 ;; RW - probably reset? undocumented
		64	VIA_REG_CTRL_INT equ (VIA_REG_CTRL_INT_FLAG or \
		65	VIA_REG_CTRL_INT_EOL or \
		66	VIA_REG_CTRL_AUTOSTART)
		67	VIA_REG_OFFSET_TYPE equ 0x02 ;; byte - channel type (686 only)
		68	VIA_REG_TYPE_AUTOSTART equ 0x80 ;; RW - autostart at EOL
		69	VIA_REG_TYPE_16BIT equ 0x20 ;; RW
		70	VIA_REG_TYPE_STEREO equ 0x10 ;; RW
		71	VIA_REG_TYPE_INT_LLINE equ 0x00
		72	VIA_REG_TYPE_INT_LSAMPLE equ 0x04
		73	VIA_REG_TYPE_INT_LESSONE equ 0x08
		74	VIA_REG_TYPE_INT_MASK equ 0x0c
		75	VIA_REG_TYPE_INT_EOL equ 0x02
		76	VIA_REG_TYPE_INT_FLAG equ 0x01
		77	VIA_REG_OFFSET_TABLE_PTR equ 0x04 ;; dword - channel table pointer
		78	VIA_REG_OFFSET_CURR_PTR equ 0x04 ;; dword - channel current pointer
		79	VIA_REG_OFFSET_STOP_IDX equ 0x08 ;; dword - stop index, channel type, sample rate
		80	VIA8233_REG_TYPE_16BIT equ 0x00200000 ;; RW
		81	VIA8233_REG_TYPE_STEREO equ 0x00100000 ;; RW
		82	VIA_REG_OFFSET_CURR_COUNT equ 0x0c ;; dword - channel current count (24 bit)
		83	VIA_REG_OFFSET_CURR_INDEX equ 0x0f ;; byte - channel current index (for via8233 only)
		84
		85
		86	VIADEV_PLAYBACK equ 0x00
		87	VIADEV_CAPTURE equ 0x10
		88	VIADEV_FM equ 0x20
		89
		90	;; AC'97 ;;
		91	VIA_REG_AC97 equ 0x80 ; dword
		92	VIA_REG_AC97_CODEC_ID_MASK equ 0xC0000000 ;(3<<30)
		93	VIA_REG_AC97_CODEC_ID_SHIFT equ 30
		94	VIA_REG_AC97_CODEC_ID_PRIMARY equ 0x00
		95	VIA_REG_AC97_CODEC_ID_SECONDARY equ 0x01
		96	VIA_REG_AC97_SECONDARY_VALID equ 0x08000000 ;(1<<27)
		97	VIA_REG_AC97_PRIMARY_VALID equ 0x02000000 ;(1<<25)
		98	VIA_REG_AC97_BUSY equ 0x01000000 ;(1<<24)
		99	VIA_REG_AC97_READ equ 0x00800000 ;(1<<23)
		100	VIA_REG_AC97_CMD_SHIFT equ 16
		101	VIA_REG_AC97_CMD_MASK equ 0x7E
		102	VIA_REG_AC97_DATA_SHIFT equ 0
		103	VIA_REG_AC97_DATA_MASK equ 0xFFFF
		104
		105	VIA_REG_SGD_SHADOW equ 0x84 ; dword
		106
		107	;; via8233-specific registers ;;
		108	VIA_REG_OFS_PLAYBACK_VOLUME_L equ 0x02 ;; byte
		109	VIA_REG_OFS_PLAYBACK_VOLUME_R equ 0x03 ;; byte
		110	VIA_REG_OFS_MULTPLAY_FORMAT equ 0x02 ;; byte - format and channels
		111	VIA_REG_MULTPLAY_FMT_8BIT equ 0x00
		112	VIA_REG_MULTPLAY_FMT_16BIT equ 0x80
		113	VIA_REG_MULTPLAY_FMT_CH_MASK equ 0x70 ;; # channels << 4 (valid = 1,2,4,6)
		114	VIA_REG_OFS_CAPTURE_FIFO equ 0x02 ;; byte - bit 6 = fifo enable
		115	VIA_REG_CAPTURE_FIFO_ENABLE equ 0x40
		116
		117	VIA_DXS_MAX_VOLUME equ 31 ;; max. volume (attenuation) of reg 0x32/33
		118
		119	VIA_TBL_BIT_FLAG equ 0x40000000
		120	VIA_TBL_BIT_EOL equ 0x80000000
		121
		122	;; pci space ;;
		123	VIA_ACLINK_STAT equ 0x40
		124	;...
		125	VIA_ACLINK_C00_READY equ 0x01 ; primary codec ready
		126	VIA_ACLINK_CTRL equ 0x41
		127	VIA_ACLINK_CTRL_ENABLE equ 0x80 ; 0: disable, 1: enable
		128	VIA_ACLINK_CTRL_RESET equ 0x40 ; 0: assert, 1: de-assert
		129	VIA_ACLINK_CTRL_SYNC equ 0x20 ; 0: release SYNC, 1: force SYNC hi
		130	VIA_ACLINK_CTRL_SDO equ 0x10 ; 0: release SDO, 1: force SDO hi
		131	VIA_ACLINK_CTRL_VRA equ 0x08 ; 0: disable VRA, 1: enable VRA
		132	VIA_ACLINK_CTRL_PCM equ 0x04 ; 0: disable PCM, 1: enable PCM
		133	VIA_ACLINK_CTRL_FM equ 0x02 ; via686 only
		134	VIA_ACLINK_CTRL_SB equ 0x01 ; via686 only
		135	VIA_ACLINK_CTRL_INIT equ (VIA_ACLINK_CTRL_ENABLE or \
		136	VIA_ACLINK_CTRL_RESET or \
		137	VIA_ACLINK_CTRL_PCM or \
		138	VIA_ACLINK_CTRL_VRA)
		139	VIA_FUNC_ENABLE equ 0x42
		140	VIA_FUNC_MIDI_PNP equ 0x80 ; FIXME: it's 0x40 in the datasheet!
		141	VIA_FUNC_MIDI_IRQMASK equ 0x40 ; FIXME: not documented!
		142	VIA_FUNC_RX2C_WRITE equ 0x20
		143	VIA_FUNC_SB_FIFO_EMPTY equ 0x10
		144	VIA_FUNC_ENABLE_GAME equ 0x08
		145	VIA_FUNC_ENABLE_FM equ 0x04
		146	VIA_FUNC_ENABLE_MIDI equ 0x02
		147	VIA_FUNC_ENABLE_SB equ 0x01
		148	VIA_PNP_CONTROL equ 0x43
		149	VIA_FM_NMI_CTRL equ 0x48
		150	VIA8233_VOLCHG_CTRL equ 0x48
		151	VIA8233_SPDIF_CTRL equ 0x49
		152	VIA8233_SPDIF_DX3 equ 0x08
		153	VIA8233_SPDIF_SLOT_MASK equ 0x03
		154	VIA8233_SPDIF_SLOT_1011 equ 0x00
		155	VIA8233_SPDIF_SLOT_34 equ 0x01
		156	VIA8233_SPDIF_SLOT_78 equ 0x02
		157	VIA8233_SPDIF_SLOT_69 equ 0x03
		158	;] Asper
		159
		160
		161	SRV_GETVERSION equ 0
		162	DEV_PLAY equ 1
		163	DEV_STOP equ 2
		164	DEV_CALLBACK equ 3
		165	DEV_SET_BUFF equ 4
		166	DEV_NOTIFY equ 5
		167	DEV_SET_MASTERVOL equ 6
		168	DEV_GET_MASTERVOL equ 7
		169	DEV_GET_INFO equ 8
4496	Asper	170	DEV_GET_POS equ 9
2288	clevermous	171
		172	struc AC_CNTRL ;AC controller base class
		173	{ .bus dd ?
		174	.devfn dd ?
		175
		176	.vendor dd ?
		177	.dev_id dd ?
		178	.pci_cmd dd ?
		179	.pci_stat dd ?
		180
		181	.codec_io_base dd ?
		182	.codec_mem_base dd ?
		183
		184	.ctrl_io_base dd ?
		185	.ctrl_mem_base dd ?
		186	.cfg_reg dd ?
		187	.int_line dd ?
		188
		189	.vendor_ids dd ? ;vendor id string
		190	.ctrl_ids dd ? ;hub id string
		191
		192	.buffer dd ?
		193
		194	.notify_pos dd ?
		195	.notify_task dd ?
		196
		197	.lvi_reg dd ?
		198	.ctrl_setup dd ?
		199	.user_callback dd ?
		200	.codec_read16 dd ?
		201	.codec_write16 dd ?
		202
		203	.ctrl_read8 dd ?
		204	.ctrl_read16 dd ?
		205	.ctrl_read32 dd ?
		206
		207	.ctrl_write8 dd ?
		208	.ctrl_write16 dd ?
		209	.ctrl_write32 dd ?
		210	}
		211
		212	struc CODEC ;Audio Chip base class
		213	{
		214	.chip_id dd ?
		215	.flags dd ?
		216	.status dd ?
		217
		218	.ac_vendor_ids dd ? ;ac vendor id string
		219	.chip_ids dd ? ;chip model string
		220
		221	.shadow_flag dd ?
		222	dd ?
		223
		224	.regs dw ? ; codec registers
		225	.reg_master_vol dw ? ;0x02
		226	.reg_aux_out_vol dw ? ;0x04
		227	.reg_mone_vol dw ? ;0x06
		228	.reg_master_tone dw ? ;0x08
		229	.reg_beep_vol dw ? ;0x0A
		230	.reg_phone_vol dw ? ;0x0C
		231	.reg_mic_vol dw ? ;0x0E
		232	.reg_line_in_vol dw ? ;0x10
		233	.reg_cd_vol dw ? ;0x12
		234	.reg_video_vol dw ? ;0x14
		235	.reg_aux_in_vol dw ? ;0x16
		236	.reg_pcm_out_vol dw ? ;0x18
		237	.reg_rec_select dw ? ;0x1A
		238	.reg_rec_gain dw ? ;0x1C
		239	.reg_rec_gain_mic dw ? ;0x1E
		240	.reg_gen dw ? ;0x20
		241	.reg_3d_ctrl dw ? ;0X22
		242	.reg_page dw ? ;0X24
		243	.reg_powerdown dw ? ;0x26
		244	.reg_ext_audio dw ? ;0x28
		245	.reg_ext_st dw ? ;0x2a
		246	.reg_pcm_front_rate dw ? ;0x2c
		247	.reg_pcm_surr_rate dw ? ;0x2e
		248	.reg_lfe_rate dw ? ;0x30
		249	.reg_pcm_in_rate dw ? ;0x32
		250	dw ? ;0x34
		251	.reg_cent_lfe_vol dw ? ;0x36
		252	.reg_surr_vol dw ? ;0x38
		253	.reg_spdif_ctrl dw ? ;0x3A
		254	dw ? ;0x3C
		255	dw ? ;0x3E
		256	dw ? ;0x40
		257	dw ? ;0x42
		258	dw ? ;0x44
		259	dw ? ;0x46
		260	dw ? ;0x48
		261	dw ? ;0x4A
		262	dw ? ;0x4C
		263	dw ? ;0x4E
		264	dw ? ;0x50
		265	dw ? ;0x52
		266	dw ? ;0x54
		267	dw ? ;0x56
		268	dw ? ;0x58
		269	dw ? ;0x5A
		270	dw ? ;0x5C
		271	dw ? ;0x5E
		272	.reg_page_0 dw ? ;0x60
		273	.reg_page_1 dw ? ;0x62
		274	.reg_page_2 dw ? ;0x64
		275	.reg_page_3 dw ? ;0x66
		276	.reg_page_4 dw ? ;0x68
		277	.reg_page_5 dw ? ;0x6A
		278	.reg_page_6 dw ? ;0x6C
		279	.reg_page_7 dw ? ;0x6E
		280	dw ? ;0x70
		281	dw ? ;0x72
		282	dw ? ;0x74
		283	dw ? ;0x76
		284	dw ? ;0x78
		285	dw ? ;0x7A
		286	.reg_vendor_id_1 dw ? ;0x7C
		287	.reg_vendor_id_2 dw ? ;0x7E
		288
		289
4496	Asper	290	.reset dd ? ;virtual
2288	clevermous	291	.set_master_vol dd ?
		292	}
		293
		294	struc CTRL_INFO
		295	{ .pci_cmd dd ?
		296	.irq dd ?
		297	.glob_cntrl dd ?
		298	.glob_sta dd ?
		299	.codec_io_base dd ?
		300	.ctrl_io_base dd ?
		301	.codec_mem_base dd ?
		302	.ctrl_mem_base dd ?
		303	.codec_id dd ?
		304	}
		305
		306	EVENT_NOTIFY equ 0x00000200
		307
5077	clevermous	308	section '.flat' code readable writable executable
		309	include '../struct.inc'
		310	include '../macros.inc'
		311	include '../proc32.inc'
		312	include '../peimport.inc'
2288	clevermous	313
5077	clevermous	314	proc START c, state:dword, cmdline:dword
2288	clevermous	315
		316	cmp [state], 1
		317	jne .stop
		318
		319	if DEBUG
		320	mov esi, msgInit
5077	clevermous	321	invoke SysMsgBoardStr
2288	clevermous	322	end if
		323
		324	call detect_controller
		325	test eax, eax
		326	jz .fail
		327
		328	if DEBUG
		329	mov esi, [ctrl.vendor_ids]
5077	clevermous	330	invoke SysMsgBoardStr
2288	clevermous	331	mov esi, [ctrl.ctrl_ids]
5077	clevermous	332	invoke SysMsgBoardStr
2288	clevermous	333	end if
		334
		335	call init_controller
		336	test eax, eax
		337	jz .fail
		338
		339	call init_codec
		340	test eax, eax
		341	jz .fail
		342
		343	call setup_codec
		344
		345	mov esi, msgPrimBuff
5077	clevermous	346	invoke SysMsgBoardStr
2288	clevermous	347	call create_primary_buff
		348	mov esi, msgDone
5077	clevermous	349	invoke SysMsgBoardStr
2288	clevermous	350
		351	if IRQ_REMAP
		352	pushf
		353	cli
		354
		355	mov ebx, [ctrl.int_line]
		356	in al, 0xA1
		357	mov ah, al
		358	in al, 0x21
		359	test ebx, ebx
		360	jz .skip
		361	bts ax, bx ;mask old line
		362	.skip:
		363	bts ax, IRQ_LINE ;mask new ine
		364	out 0x21, al
		365	mov al, ah
		366	out 0xA1, al
		367
5077	clevermous	368	invoke PciWrite8, 0, 0xF8, 0x61, IRQ_LINE ;remap IRQ
2288	clevermous	369
		370	mov dx, 0x4d0 ;8259 ELCR1
		371	in al, dx
		372	bts ax, IRQ_LINE
		373	out dx, al ;set level-triggered mode
		374	mov [ctrl.int_line], IRQ_LINE
		375	popf
		376	mov esi, msgRemap
5077	clevermous	377	invoke SysMsgBoardStr
2288	clevermous	378	end if
		379
		380	mov eax, VALID_IRQ
		381	mov ebx, [ctrl.int_line]
		382	mov esi, msgInvIRQ
		383	bt eax, ebx
		384	jnc .fail_msg
		385
5077	clevermous	386	invoke AttachIntHandler, ebx, ac97_irq_VIA, 0
2288	clevermous	387	.reg:
5077	clevermous	388	invoke RegService, sz_sound_srv, service_proc
2288	clevermous	389	ret
		390	.fail:
		391	if DEBUG
		392	mov esi, msgFail
5077	clevermous	393	invoke SysMsgBoardStr
2288	clevermous	394	end if
		395	xor eax, eax
		396	ret
		397	.fail_msg:
5077	clevermous	398	invoke SysMsgBoardStr
2288	clevermous	399	xor eax, eax
		400	ret
		401	.stop:
		402	call stop
		403	xor eax, eax
		404	ret
		405	endp
		406
		407	handle equ IOCTL.handle
		408	io_code equ IOCTL.io_code
		409	input equ IOCTL.input
		410	inp_size equ IOCTL.inp_size
		411	output equ IOCTL.output
		412	out_size equ IOCTL.out_size
		413
		414	align 4
		415	proc service_proc stdcall, ioctl:dword
		416
		417	mov edi, [ioctl]
		418	mov eax, [edi+io_code]
		419
		420	cmp eax, SRV_GETVERSION
		421	jne @F
		422	mov eax, [edi+output]
		423	cmp [edi+out_size], 4
		424	jne .fail
		425
		426	mov [eax], dword API_VERSION
		427	xor eax, eax
		428	ret
		429	@@:
		430	cmp eax, DEV_PLAY
		431	jne @F
		432	if DEBUG
		433	mov esi, msgPlay
5077	clevermous	434	invoke SysMsgBoardStr
2288	clevermous	435	end if
		436	call play
		437	ret
		438	@@:
		439	cmp eax, DEV_STOP
		440	jne @F
		441	if DEBUG
		442	mov esi, msgStop
5077	clevermous	443	invoke SysMsgBoardStr
2288	clevermous	444	end if
		445	call stop
		446	ret
		447	@@:
		448	cmp eax, DEV_CALLBACK
		449	jne @F
		450	mov ebx, [edi+input]
		451	stdcall set_callback, [ebx]
		452	ret
		453	@@:
		454	cmp eax, DEV_SET_MASTERVOL
		455	jne @F
		456	mov eax, [edi+input]
		457	mov eax, [eax]
		458	call set_master_vol ;eax= vol
		459	ret
		460	@@:
		461	cmp eax, DEV_GET_MASTERVOL
		462	jne @F
		463	mov ebx, [edi+output]
		464	stdcall get_master_vol, ebx
		465	ret
		466	@@:
		467	cmp eax, DEV_GET_INFO
		468	jne @F
		469	mov ebx, [edi+output]
		470	stdcall get_dev_info, ebx
		471	ret
		472	@@:
4496	Asper	473	cmp eax, DEV_GET_POS
		474	jne @F
		475	push ebx edx
		476	mov edx, VIADEV_PLAYBACK + VIA_REG_OFFSET_CURR_COUNT
		477	call [ctrl.ctrl_read32]
		478	and eax, 0x00FFFFFF
		479	mov ebx, 4096
		480	sub ebx, eax
		481	shr ebx, 2
		482	mov edx, [edi+output]
		483	mov [edx], ebx
		484	pop edx ebx
		485	ret
		486	@@:
2288	clevermous	487	.fail:
		488	or eax, -1
		489	ret
		490	endp
		491
		492	restore handle
		493	restore io_code
		494	restore input
		495	restore inp_size
		496	restore output
		497	restore out_size
		498
		499
		500	align 4
		501	proc ac97_irq_VIA
		502	locals
		503	status db 0
		504	endl
		505
		506	mov edx, VIADEV_PLAYBACK +VIA_REG_OFFSET_STATUS
		507	call [ctrl.ctrl_read8]
		508	test al, VIA_REG_STAT_ACTIVE
		509	jz @f
		510
		511	and al, VIA_REG_STAT_EOL or VIA_REG_STAT_FLAG or VIA_REG_STAT_STOPPED
		512	mov byte [status], al
		513
		514	mov ebx, dword [buff_list]
		515	cmp [ctrl.user_callback], 0
		516	je @f
		517	stdcall [ctrl.user_callback], ebx
		518	@@:
		519	mov al, byte [status] ;; ack ;;
		520	mov edx, VIADEV_PLAYBACK +VIA_REG_OFFSET_STATUS
		521	call [ctrl.ctrl_write8]
		522
		523	ret
		524	endp
		525
		526
		527	align 4
		528	proc create_primary_buff
		529
5077	clevermous	530	invoke KernelAlloc, 0x10000
2288	clevermous	531	mov [ctrl.buffer], eax
		532
		533	mov edi, eax
		534	mov ecx, 0x10000/4
		535	xor eax, eax
		536	cld
		537	rep stosd
		538
		539	mov eax, [ctrl.buffer]
5077	clevermous	540	invoke GetPgAddr
2288	clevermous	541	mov edi, pcmout_bdl
		542	stosd
		543	mov eax, 0x80004000
		544	stosd
		545
		546	mov edi, buff_list
		547	mov eax, [ctrl.buffer]
		548	mov ecx, 4
		549	@@:
		550	mov [edi], eax
		551	mov [edi+16], eax
		552	mov [edi+32], eax
		553	mov [edi+48], eax
		554	mov [edi+64], eax
		555	mov [edi+80], eax
		556	mov [edi+96], eax
		557	mov [edi+112], eax
		558
		559	;add eax, 0x4000
		560	add edi, 4
		561	loop @B
		562
		563	stdcall channel_reset, VIADEV_PLAYBACK
		564	stdcall codec_check_ready
		565
		566	mov eax, pcmout_bdl
		567	mov ebx, eax
5077	clevermous	568	invoke GetPgAddr
2288	clevermous	569	and ebx, 0xFFF
		570	add eax, ebx
		571
		572	mov edx, VIADEV_PLAYBACK +VIA_REG_OFFSET_TABLE_PTR
		573	call [ctrl.ctrl_write32]
		574
		575	stdcall codec_check_ready
		576
		577	mov edx, VIADEV_PLAYBACK +VIA_REG_OFS_PLAYBACK_VOLUME_L
		578	mov eax, 7 ;31
		579	call [ctrl.ctrl_write8]
		580
		581	mov edx, VIADEV_PLAYBACK +VIA_REG_OFS_PLAYBACK_VOLUME_R
		582	mov eax, 7 ;31
		583	call [ctrl.ctrl_write8]
		584
		585	mov edx, VIADEV_PLAYBACK +VIA_REG_OFFSET_STOP_IDX
		586	mov eax, VIA8233_REG_TYPE_16BIT or VIA8233_REG_TYPE_STEREO or 0xfffff or 0xff000000
		587	mov [ctrl.lvi_reg], 16 ;0xF;eax
		588	call [ctrl.ctrl_write32]
		589
		590	stdcall codec_check_ready
		591	ret
		592	endp
		593
		594
		595	proc channel_reset channel:dword
		596	mov esi, dword [channel]
		597	mov edx, esi
		598	add edx, VIA_REG_OFFSET_CONTROL
		599	mov eax, VIA_REG_CTRL_PAUSE or VIA_REG_CTRL_TERMINATE or VIA_REG_CTRL_RESET
		600	call [ctrl.ctrl_write8]
		601
		602	mov edx, esi
		603	add edx, VIA_REG_OFFSET_CONTROL
		604	call [ctrl.ctrl_read8]
		605
		606	mov eax, 50000 ; wait 50 ms
		607	call StallExec
		608	; disable interrupts
		609	mov edx, esi
		610	add edx, VIA_REG_OFFSET_CONTROL
		611	xor eax, eax
		612	call [ctrl.ctrl_write8]
		613
		614	; clear interrupts
		615	mov edx, esi
		616	add edx, VIA_REG_OFFSET_STATUS
		617	mov eax, 0x03
		618	call [ctrl.ctrl_write8]
		619
		620	;outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
		621	; mov edx, esi ;; for via686
		622	; add edx, VIA_REG_OFFSET_TYPE
		623	; mov eax, 0x03
		624	; call [ctrl.ctrl_write8]
		625
		626	;; outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
		627	;mov edx, esi
		628	;add edx, VIA_REG_OFFSET_CURR_PTR
		629	;xor eax, eax
		630	;call [ctrl.ctrl_write8]
		631
		632	ret
		633	endp
		634
		635
		636	align 4
		637	proc detect_controller
		638	locals
		639	last_bus dd ?
		640	bus dd ?
		641	devfn dd ?
		642	endl
		643
		644	xor eax, eax
		645	mov [bus], eax
		646	inc eax
5077	clevermous	647	invoke PciApi
2288	clevermous	648	cmp eax, -1
		649	je .err
		650
		651	mov [last_bus], eax
		652
		653	.next_bus:
		654	and [devfn], 0
		655	.next_dev:
5077	clevermous	656	invoke PciRead32, [bus], [devfn], dword 0
2288	clevermous	657	test eax, eax
		658	jz .next
		659	cmp eax, -1
		660	je .next
		661
		662	mov edi, devices
		663	@@:
		664	mov ebx, [edi]
		665	test ebx, ebx
		666	jz .next
		667
		668	cmp eax, ebx
		669	je .found
		670	add edi, 12
		671	jmp @B
		672	.next:
		673	inc [devfn]
		674	cmp [devfn], 256
		675	jb .next_dev
		676	mov eax, [bus]
		677	inc eax
		678	mov [bus], eax
		679	cmp eax, [last_bus]
		680	jna .next_bus
		681	xor eax, eax
		682	ret
		683	.found:
		684	mov ebx, [bus]
		685	mov [ctrl.bus], ebx
		686
		687	mov ecx, [devfn]
		688	mov [ctrl.devfn], ecx
		689
		690	mov edx, eax
		691	and edx, 0xFFFF
		692	mov [ctrl.vendor], edx
		693	shr eax, 16
		694	mov [ctrl.dev_id], eax
		695
		696	mov ebx, [edi+4]
		697	mov [ctrl.ctrl_ids], ebx
		698	mov esi, [edi+8]
		699	mov [ctrl.ctrl_setup], esi
		700
		701	cmp edx, VID_VIA
		702	jne @F
		703	mov [ctrl.vendor_ids], msg_VIA
		704	ret
		705	@@:
		706
		707	.err:
		708	xor eax, eax
		709	mov [ctrl.vendor_ids], eax ;something wrong ?
		710	ret
		711	endp
		712
		713	align 4
		714	proc init_controller
		715
5077	clevermous	716	invoke PciRead32, [ctrl.bus], [ctrl.devfn], dword 4
2288	clevermous	717	mov ebx, eax
		718	and eax, 0xFFFF
		719	mov [ctrl.pci_cmd], eax
		720	shr ebx, 16
		721	mov [ctrl.pci_stat], ebx
		722
		723	mov esi, msgPciCmd
5077	clevermous	724	invoke SysMsgBoardStr
2288	clevermous	725	call dword2str
5077	clevermous	726	invoke SysMsgBoardStr
2288	clevermous	727
		728	mov esi, msgPciStat
5077	clevermous	729	invoke SysMsgBoardStr
2288	clevermous	730	mov eax, [ctrl.pci_stat]
		731	call dword2str
5077	clevermous	732	invoke SysMsgBoardStr
2288	clevermous	733
		734	mov esi, msgCtrlIsaIo
5077	clevermous	735	invoke SysMsgBoardStr
		736	invoke PciRead32, [ctrl.bus], [ctrl.devfn], dword 0x10
2288	clevermous	737	call dword2str
5077	clevermous	738	invoke SysMsgBoardStr
2288	clevermous	739
		740	and eax, 0xFFC0
		741	mov [ctrl.ctrl_io_base], eax
		742
		743	.default:
5077	clevermous	744	invoke PciRead32, [ctrl.bus], [ctrl.devfn], dword 0x3C
2288	clevermous	745	and eax, 0xFF
		746	@@:
		747	mov [ctrl.int_line], eax
		748
		749	;stdcall PciRead8, [ctrl.bus], [ctrl.devfn], dword VIA_FUNC_ENABLE ;0x42
		750	;mov byte [old_legacy], al
		751
		752	;stdcall PciRead8, [ctrl.bus], [ctrl.devfn], dword VIA_PNP_CONTROL ;0x43
		753	;mov byte [old_legacy_cfg], al
		754
		755	;mov al, VIA_FUNC_ENABLE_SB or VIA_FUNC_ENABLE_FM
		756	;xor al, 0xFF
		757	;and al, byte [old_legacy]
		758	;and eax, 0xFF
		759	;stdcall PciWrite8, [ctrl.bus], [ctrl.devfn], dword VIA_FUNC_ENABLE, eax ;0x42
		760	;mov byte [old_legacy], al
		761
		762	call [ctrl.ctrl_setup]
		763	xor eax, eax
		764	inc eax
		765	ret
		766	endp
		767
		768	align 4
		769	proc set_VIA
		770	mov [ctrl.codec_read16], codec_io_r16 ;virtual
		771	mov [ctrl.codec_write16], codec_io_w16 ;virtual
		772
		773	mov [ctrl.ctrl_read8 ], ctrl_io_r8 ;virtual
		774	mov [ctrl.ctrl_read16], ctrl_io_r16 ;virtual
		775	mov [ctrl.ctrl_read32], ctrl_io_r32 ;virtual
		776
		777	mov [ctrl.ctrl_write8 ], ctrl_io_w8 ;virtual
		778	mov [ctrl.ctrl_write16], ctrl_io_w16 ;virtual
		779	mov [ctrl.ctrl_write32], ctrl_io_w32 ;virtual
		780	ret
		781	endp
		782
		783
		784	align 4
		785	proc init_codec
		786	locals
		787	counter dd ?
		788	endl
		789
		790	mov esi, msgControl
5077	clevermous	791	invoke SysMsgBoardStr
		792	invoke PciRead8, [ctrl.bus], [ctrl.devfn], dword VIA_ACLINK_CTRL
2288	clevermous	793	and eax, 0xFF
		794	call dword2str
5077	clevermous	795	invoke SysMsgBoardStr
2288	clevermous	796
		797	mov esi, msgStatus
5077	clevermous	798	invoke SysMsgBoardStr
		799	invoke PciRead8, [ctrl.bus], [ctrl.devfn], dword VIA_ACLINK_STAT
2288	clevermous	800	and eax, 0xFF
		801	push eax
		802	call dword2str
5077	clevermous	803	invoke SysMsgBoardStr
2288	clevermous	804	pop eax
		805
		806	test eax, VIA_ACLINK_C00_READY
4496	Asper	807	jnz .ready
2288	clevermous	808
		809	call reset_codec
		810	test eax, eax
		811	jz .err
		812
		813	.ready:
		814	xor edx, edx ; ac_reg_0
		815	call [ctrl.codec_write16]
		816	jmp .done
		817
		818	.err:
		819	xor eax, eax ; timeout error
		820	ret
		821
		822	.done:
		823	call detect_codec
		824
		825	xor eax, eax
		826	inc eax
		827	ret
		828	endp
		829
		830	align 4
		831	proc reset_codec
5077	clevermous	832	invoke PciWrite8, [ctrl.bus], [ctrl.devfn], dword VIA_ACLINK_CTRL, \
2288	clevermous	833	VIA_ACLINK_CTRL_ENABLE or VIA_ACLINK_CTRL_RESET or VIA_ACLINK_CTRL_SYNC
		834	mov eax, 100000 ; wait 100 ms
		835	call StallExec
		836	.cold:
		837	call cold_reset
		838	jnc .ok
		839
		840	if DEBUG
		841	mov esi, msgCFail
5077	clevermous	842	invoke SysMsgBoardStr
2288	clevermous	843	end if
		844	xor eax, eax ; timeout error
		845	ret
		846	.ok:
		847	if DEBUG
		848	mov esi, msgResetOk
5077	clevermous	849	invoke SysMsgBoardStr
2288	clevermous	850	end if
		851	xor eax, eax
		852	inc eax
		853	ret
		854	endp
		855
		856
		857	align 4
		858	proc cold_reset
		859	locals
		860	counter dd ?
		861	endl
		862
5077	clevermous	863	invoke PciWrite8, [ctrl.bus], [ctrl.devfn], dword VIA_ACLINK_CTRL, dword 0
2288	clevermous	864
		865	if DEBUG
		866	mov esi, msgCold
5077	clevermous	867	invoke SysMsgBoardStr
2288	clevermous	868	end if
		869
		870	mov eax, 100000 ; wait 100 ms ;400000 ; wait 400 ms
		871	call StallExec
		872
		873	;; ACLink on, deassert ACLink reset, VSR, SGD data out
		874	;; note - FM data out has trouble with non VRA codecs !!
5077	clevermous	875	invoke PciWrite8, [ctrl.bus], [ctrl.devfn], dword VIA_ACLINK_CTRL, dword VIA_ACLINK_CTRL_INIT
2288	clevermous	876
		877	mov [counter], 16 ; total 20*100 ms = 2s
		878	.wait:
5077	clevermous	879	invoke PciRead8, [ctrl.bus], [ctrl.devfn], dword VIA_ACLINK_STAT
2288	clevermous	880	test eax, VIA_ACLINK_C00_READY
		881	jnz .ok
		882
		883	mov eax, 100000 ; wait 100 ms
		884	call StallExec
		885
		886	dec [counter]
		887	jnz .wait
		888
		889	if DEBUG
		890	mov esi, msgCRFail
5077	clevermous	891	invoke SysMsgBoardStr
2288	clevermous	892	end if
		893
		894	.fail:
		895	stc
		896	ret
		897	.ok:
		898	mov esi, msgControl
5077	clevermous	899	invoke SysMsgBoardStr
		900	invoke PciRead8, [ctrl.bus], [ctrl.devfn], dword VIA_ACLINK_CTRL
2288	clevermous	901	call dword2str
5077	clevermous	902	invoke SysMsgBoardStr
2288	clevermous	903
		904	mov esi, msgStatus
5077	clevermous	905	invoke SysMsgBoardStr
		906	invoke PciRead8, [ctrl.bus], [ctrl.devfn], dword VIA_ACLINK_STAT
2288	clevermous	907	and eax, 0xFF
		908	push eax
		909	call dword2str
5077	clevermous	910	invoke SysMsgBoardStr
2288	clevermous	911	pop eax
		912
		913	test eax, VIA_ACLINK_C00_READY ;CTRL_ST_CREADY
		914	jz .fail
		915	clc
		916	ret
		917	endp
		918
		919	align 4
		920	play:
		921	mov edx, VIADEV_PLAYBACK +VIA_REG_OFFSET_STOP_IDX
		922	mov eax, VIA8233_REG_TYPE_16BIT or VIA8233_REG_TYPE_STEREO or 0xfffff or 0xff000000
		923	mov [ctrl.lvi_reg], 16
		924	call [ctrl.ctrl_write32]
		925
		926	mov eax, VIA_REG_CTRL_INT
		927	or eax, VIA_REG_CTRL_START
		928	mov edx, VIADEV_PLAYBACK +VIA_REG_OFFSET_CONTROL
		929	call [ctrl.ctrl_write8]
		930
		931	xor eax, eax
		932	ret
		933
		934	align 4
		935	stop:
		936	mov eax, VIA_REG_CTRL_INT
		937	or eax, VIA_REG_CTRL_TERMINATE
		938	mov edx, VIADEV_PLAYBACK +VIA_REG_OFFSET_CONTROL
		939	call [ctrl.ctrl_write8]
		940
		941	stdcall channel_reset, VIADEV_PLAYBACK
		942	xor eax, eax
		943	ret
		944
		945	align 4
		946	proc get_dev_info stdcall, p_info:dword
		947	virtual at esi
		948	CTRL_INFO CTRL_INFO
		949	end virtual
		950
		951	mov esi, [p_info]
		952	mov eax, [ctrl.int_line]
		953	mov ecx, [ctrl.ctrl_io_base]
		954	mov [CTRL_INFO.irq], eax
		955	mov [CTRL_INFO.ctrl_io_base], ecx
		956
		957	xor eax, eax
		958	;mov edx, VIADEV_PLAYBACK +VIA_REG_OFFSET_TABLE_PTR
		959	;call [ctrl.ctrl_read32]
		960	mov [CTRL_INFO.codec_io_base], eax
		961	;mov edx, VIADEV_PLAYBACK +VIA_REG_OFFSET_STOP_IDX
		962	;call [ctrl.ctrl_read32]
		963	mov [CTRL_INFO.codec_mem_base], eax
		964	;mov edx, VIADEV_PLAYBACK +VIA_REG_OFFSET_CURR_COUNT
		965	;call [ctrl.ctrl_read32]
		966	mov [CTRL_INFO.ctrl_mem_base], eax
		967
		968	mov eax, [codec.chip_id]
		969	mov [CTRL_INFO.codec_id], eax
		970
		971	mov edx, VIADEV_PLAYBACK +VIA_REG_OFFSET_CONTROL
		972	call [ctrl.ctrl_read8]
		973	and eax, 0xFF
		974	mov [CTRL_INFO.glob_cntrl], eax
		975
		976	mov edx, VIADEV_PLAYBACK +VIA_REG_OFFSET_STATUS
		977	call [ctrl.ctrl_read8]
		978	and eax, 0xFF
		979	mov [CTRL_INFO.glob_sta], eax
		980
		981	mov ebx, [ctrl.pci_cmd]
		982	mov [CTRL_INFO.pci_cmd], ebx
		983	ret
		984	endp
		985
		986	align 4
		987	proc set_callback stdcall, handler:dword
		988	mov eax, [handler]
		989	mov [ctrl.user_callback], eax
		990	ret
		991	endp
		992
		993
		994	align 4
		995	proc codec_check_ready stdcall
		996	locals
		997	counter dd ?
		998	endl
		999
		1000	mov [counter], 1000 ; total 1000*1 ms = 1s
		1001	.wait:
		1002	call [ctrl.codec_read16]
		1003	test eax, VIA_REG_AC97_BUSY
		1004	jz .ok
		1005
		1006	mov eax, 1000 ; wait 1 ms
		1007	call StallExec
		1008
		1009	sub [counter] , 1
		1010	jnz .wait
		1011	.err:
		1012	mov eax, -1
		1013	ret
		1014	.ok:
		1015	and eax, 0xFFFF
		1016	ret
		1017	endp
		1018
		1019
		1020	align 4
		1021	proc codec_valid stdcall
		1022	stdcall codec_check_ready
		1023	ret
		1024	endp
		1025
		1026	align 4
		1027	proc codec_read stdcall, ac_reg:dword ; reg = edx, reval = eax
		1028	locals
		1029	counter dd ?
		1030	endl
		1031
		1032	;Use only primary codec.
		1033	mov eax, [ac_reg]
		1034	and eax, 0x7F
		1035	shl eax, VIA_REG_AC97_CMD_SHIFT
		1036	or eax, VIA_REG_AC97_PRIMARY_VALID or VIA_REG_AC97_READ
		1037
		1038	mov [counter], 3 ; total 3*20 ms = 60ms
		1039	.wait:
		1040	push eax
		1041	call [ctrl.codec_write16]
		1042
		1043	mov eax, 20000 ; wait 20 ms
		1044	call StallExec
		1045
		1046	stdcall codec_valid
		1047	cmp eax, 0
		1048	pop eax
		1049	jge .ok
		1050
		1051	sub [counter] , 1
		1052	jnz .wait
		1053	jmp .err
		1054
		1055	.ok:
		1056	mov eax, 25000 ; wait 25 ms
		1057	call StallExec
		1058
		1059	call [ctrl.codec_read16] ;change edx !!!
		1060	and eax, 0xFFFF
		1061	ret
		1062	.err:
		1063	if DEBUG
		1064	mov esi, msgCInvalid
5077	clevermous	1065	invoke SysMsgBoardStr
2288	clevermous	1066	end if
		1067	mov eax, -1 ; invalid codec error
		1068	ret
		1069	endp
		1070
		1071	align 4
		1072	proc codec_write stdcall, ac_reg:dword
		1073	;Use only primary codec.
		1074	mov esi, [ac_reg]
		1075	mov edx, esi
		1076	shl edx, VIA_REG_AC97_CMD_SHIFT
		1077
		1078	shl eax, VIA_REG_AC97_DATA_SHIFT
		1079	or edx, eax
		1080
		1081	mov eax, VIA_REG_AC97_CODEC_ID_PRIMARY ;not VIA_REG_AC97_CODEC_ID_PRIMARY
		1082	shl eax, VIA_REG_AC97_CODEC_ID_SHIFT
		1083	or edx, eax
		1084
		1085	mov eax, edx
		1086	mov edx, esi
		1087	call [ctrl.codec_write16]
		1088	mov [codec.regs+esi], ax
		1089
		1090	stdcall codec_check_ready
		1091	cmp eax, 0
		1092	jl .err
		1093	.ok:
		1094	ret
		1095	.err:
		1096	if DEBUG
		1097	mov esi, msgCFail
5077	clevermous	1098	invoke SysMsgBoardStr
2288	clevermous	1099	end if
		1100	;mov eax, -1 ; codec not ready error
		1101	ret
		1102	endp
		1103
		1104	align 4
		1105	proc StallExec
		1106	push ecx
		1107	push edx
		1108	push ebx
		1109	push eax
		1110
		1111	mov ecx, CPU_FREQ
		1112	mul ecx
		1113	mov ebx, eax ;low
		1114	mov ecx, edx ;high
		1115	rdtsc
		1116	add ebx, eax
		1117	adc ecx, edx
		1118	@@:
		1119	rdtsc
		1120	sub eax, ebx
		1121	sbb edx, ecx
		1122	js @B
		1123
		1124	pop eax
		1125	pop ebx
		1126	pop edx
		1127	pop ecx
		1128	ret
		1129	endp
		1130
		1131	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		1132	; CONTROLLER IO functions
		1133	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		1134
		1135	align 4
		1136	proc codec_io_r16 ;r32
		1137	mov edx, [ctrl.ctrl_io_base]
		1138	add edx, VIA_REG_AC97
		1139	in eax, dx
		1140	ret
		1141	endp
		1142
		1143	align 4
		1144	proc codec_io_w16 ;w32
		1145	mov edx, [ctrl.ctrl_io_base]
		1146	add edx, VIA_REG_AC97
		1147	out dx, eax
		1148	ret
		1149	endp
		1150
		1151	align 4
		1152	proc ctrl_io_r8
		1153	add edx, [ctrl.ctrl_io_base]
		1154	in al, dx
		1155	ret
		1156	endp
		1157
		1158	align 4
		1159	proc ctrl_io_r16
		1160	add edx, [ctrl.ctrl_io_base]
		1161	in ax, dx
		1162	ret
		1163	endp
		1164
		1165	align 4
		1166	proc ctrl_io_r32
		1167	add edx, [ctrl.ctrl_io_base]
		1168	in eax, dx
		1169	ret
		1170	endp
		1171
		1172	align 4
		1173	proc ctrl_io_w8
		1174	add edx, [ctrl.ctrl_io_base]
		1175	out dx, al
		1176	ret
		1177	endp
		1178
		1179	align 4
		1180	proc ctrl_io_w16
		1181	add edx, [ctrl.ctrl_io_base]
		1182	out dx, ax
		1183	ret
		1184	endp
		1185
		1186	align 4
		1187	proc ctrl_io_w32
		1188	add edx, [ctrl.ctrl_io_base]
		1189	out dx, eax
		1190	ret
		1191	endp
		1192
		1193
		1194	align 4
		1195	dword2str:
		1196	push eax ebx ecx
		1197	mov esi, hex_buff
		1198	mov ecx, -8
		1199	@@:
		1200	rol eax, 4
		1201	mov ebx, eax
		1202	and ebx, 0x0F
		1203	mov bl, [ebx+hexletters]
		1204	mov [8+esi+ecx], bl
		1205	inc ecx
		1206	jnz @B
		1207	pop ecx ebx eax
		1208	ret
		1209
		1210	hexletters db '0123456789ABCDEF'
		1211	hex_buff db 8 dup(0),13,10,0
		1212
		1213
		1214	include "codec.inc"
		1215
		1216	align 4
		1217	devices dd (CTRL_VT82C686 shl 16)+VID_VIA,msg_VT82C686,set_VIA
		1218	dd (CTRL_VT8233_5 shl 16)+VID_VIA,msg_VT8233,set_VIA
		1219	dd 0 ;terminator
		1220
		1221
		1222	msg_VT82C686 db 'VT82C686', 13,10, 0
		1223	msg_VT8233 db 'VT8233', 13,10, 0
		1224	msg_VIA db 'VIA' , 13,10, 0
		1225
		1226	szKernel db 'KERNEL', 0
		1227	sz_sound_srv db 'SOUND',0
		1228
		1229	msgInit db 'detect hardware...',13,10,0
		1230	msgFail db 'device not found',13,10,0
		1231	msgInvIRQ db 'IRQ line not assigned or invalid', 13,10, 0
		1232	msgPlay db 'start play', 13,10,0
		1233	msgStop db 'stop play', 13,10,0
		1234	;msgIRQ db 'AC97 IRQ', 13,10,0
		1235	;msgInitCtrl db 'init controller',13,10,0
		1236	;msgInitCodec db 'init codec',13,10,0
		1237	msgPrimBuff db 'create primary buffer ...',0
		1238	msgDone db 'done',13,10,0
		1239	msgRemap db 'Remap IRQ',13,10,0
		1240	;msgReg db 'set service handler',13,10,0
		1241	;msgOk db 'service installed',13,10,0
		1242	msgCold db 'cold reset',13,10,0
		1243	;msgWarm db 'warm reset',13,10,0
		1244	;msgWRFail db 'warm reset failed',13,10,0
		1245	msgCRFail db 'cold reset failed',13,10,0
		1246	msgCFail db 'codec not ready',13,10,0
		1247	msgCInvalid db 'codec is not valid',13,10,0 ;Asper
		1248	msgResetOk db 'reset complete',13,10,0
		1249	msgStatus db 'global status ',0
		1250	msgControl db 'global control ',0
		1251	msgPciCmd db 'PCI command ',0
		1252	msgPciStat db 'PCI status ',0
		1253	msgCtrlIsaIo db 'controller io base ',0
		1254	;msgMixIsaIo db 'codec io base ',0
		1255	;msgCtrlMMIo db 'controller mmio base ',0
		1256	;msgMixMMIo db 'codec mmio base ',0
		1257	;msgIrqMap db 'AC97 irq map as ',0
		1258
5077	clevermous	1259	align 4
		1260	data fixups
		1261	end data
2288	clevermous	1262
5077	clevermous	1263	align 8
2288	clevermous	1264	pcmout_bdl rq 32
		1265	buff_list rd 32
		1266
		1267	codec CODEC
		1268	ctrl AC_CNTRL
		1269
		1270	chip_type rb 1

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(root)/drivers/audio/vt823x.asm @ 6059 – Rev 7584