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Rev 444 Rev 462
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include 'proc32.inc'
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include 'imports.inc'
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include 'proc32.inc'
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include 'imports.inc'
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API_VERSION     equ 0x01000100
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BIT28 EQU 0x10000000
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BIT28 EQU 0x10000000
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BIT29 EQU 0x20000000
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BIT29 EQU 0x20000000
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BIT30 EQU 0x40000000
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BIT30 EQU 0x40000000
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BIT31 EQU 0x80000000
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BIT31 EQU 0x80000000
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PCM_4 equ BIT20
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PCM_6 equ BIT21
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VID_INTEL        equ 0x8086
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VID_INTEL        equ 0x8086
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VID_NVIDIA       equ 0x10DE
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VID_NVIDIA       equ 0x10DE
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MC_IN_CR_REG     equ  0x2b  ; MIC in Control Register
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MC_IN_CR_REG     equ  0x2b  ; MIC in Control Register
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RR equ  BIT1  ; reset registers.  Nukes all regs
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RR equ  BIT1  ; reset registers.  Nukes all regs
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CODEC_MASTER_VOL_REG		equ	0x02
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CODEC_MASTER_VOL_REG         equ 0x02
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CODEC_AUX_VOL			equ	0x04	;
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CODEC_AUX_VOL                equ 0x04 ;
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CODEC_PCM_OUT_REG		equ	18h	; PCM output volume
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CODEC_PCM_OUT_REG            equ 0x18 ; PCM output volume
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CODEC_EXT_AUDIO_REG		equ	28h	; extended audio
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CODEC_EXT_AUDIO_REG          equ 0x28 ; extended audio
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CODEC_EXT_AUDIO_CTRL_REG	equ	2ah	; extended audio control
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CODEC_EXT_AUDIO_CTRL_REG     equ 0x2a ; extended audio control
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CODEC_PCM_FRONT_DACRATE_REG	equ	2ch	; PCM out sample rate
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CODEC_PCM_FRONT_DACRATE_REG  equ 0x2c ; PCM out sample rate
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CODEC_PCM_SURND_DACRATE_REG	equ	2eh	; surround sound sample rate
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CODEC_PCM_SURND_DACRATE_REG  equ 0x2e ; surround sound sample rate
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CODEC_PCM_LFE_DACRATE_REG	equ	30h	; LFE sample rate
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CODEC_PCM_LFE_DACRATE_REG    equ 0x30 ; LFE sample rate
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GLOB_CTRL        equ  0x2C ;   Global Control
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GLOB_CTRL        equ  0x2C  ;   Global Control
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CTRL_CNT_GIE     equ  0x00000001  ;   GPI Interrupt Enable
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CTRL_CNT_GIE     equ  0x00000001  ;   GPI Interrupt Enable
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CODEC_REG_POWERDOWN   equ 0x26
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CODEC_REG_POWERDOWN   equ 0x26
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CODEC_REG_ST          equ 0x26
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CODEC_REG_ST          equ 0x26
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SRV_GETVERSION        equ  0
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DEV_PLAY              equ  1
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DEV_PLAY              equ  1
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DEV_STOP              equ  2
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DEV_STOP              equ  2
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DEV_CALLBACK          equ  3
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DEV_CALLBACK          equ  3
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align 4
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align 4
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proc service_proc stdcall, ioctl:dword
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proc service_proc stdcall, ioctl:dword
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           mov edi, [ioctl]
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           mov edi, [ioctl]
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           mov eax, [edi+io_code]
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           cmp eax, SRV_GETVERSION
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           jne @F
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           mov eax, [edi+output]
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           cmp [edi+out_size], 4
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           jne .fail
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           mov [eax], dword API_VERSION
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           xor eax, eax
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           ret
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           mov eax, [edi+io_code]
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@@:
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           cmp eax, DEV_PLAY
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           cmp eax, DEV_PLAY
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           jne @F
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           jne @F
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     if DEBUG
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     if DEBUG
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           mov esi, msgPlay
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           mov esi, msgPlay
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           jnz .wait
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           jnz .wait
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.err:
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.err:
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           xor eax, eax        ; timeout error
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           xor eax, eax        ; timeout error
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           ret
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           ret
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.ready:
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.ready:
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           mov eax, 2      ;force set 16-bit 2-channel PCM
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           mov edx, GLOB_CTRL
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           call [ctrl.ctrl_write32]
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           mov eax, 5000   ; wait 5 ms
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           call StallExec
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           call detect_codec
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           call detect_codec
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           xor eax, eax
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           xor eax, eax
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           inc eax
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           inc eax
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        dd (CTRL_CK8S    shl 16)+VID_NVIDIA,msg_CK8S,set_ICH
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        dd (CTRL_CK8S    shl 16)+VID_NVIDIA,msg_CK8S,set_ICH
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        dd (CTRL_MCP51   shl 16)+VID_NVIDIA,msg_MCP51,set_ICH
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        dd (CTRL_MCP51   shl 16)+VID_NVIDIA,msg_MCP51,set_ICH
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        dd 0    ;terminator
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        dd 0    ;terminator
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version      dd 0x00040004
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version      dd (5 shl 16) or (API_VERSION and 0xFFFF)
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msg_ICH      db 'Intel ICH',  13,10, 0
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msg_ICH      db 'Intel ICH',  13,10, 0