224 lines
4.8 KiB
Plaintext
224 lines
4.8 KiB
Plaintext
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align 4
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proc detect_codec
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locals
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codec_id dd ?
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endl
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stdcall codec_read, dword 0x7C
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shl eax, 16
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mov [codec_id], eax
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stdcall codec_read, dword 0x7E
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or eax, [codec_id]
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mov [codec.chip_id], eax
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and eax, 0xFFFFFF00
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mov edi, codecs
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@@:
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mov ebx, [edi]
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test ebx, ebx
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jz .unknown
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cmp eax, ebx
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jne .next
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mov eax, [edi+4]
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mov [codec.ac_vendor_ids], eax
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stdcall detect_chip, [edi+8]
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ret
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.next:
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add edi, 12
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jmp @B
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.unknown:
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mov [codec.ac_vendor_ids], ac_unknown
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mov [codec.chip_ids], chip_unknown
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ret
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endp
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align 4
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proc detect_chip stdcall, chip_tab:dword
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mov eax, [codec.chip_id]
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and eax, 0xFF
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mov edi, [chip_tab]
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@@:
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mov ebx, [edi]
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test ebx, ebx
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jz .unknown
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cmp eax,ebx
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jne .next
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mov eax, [edi+4]
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mov [codec.chip_ids], eax
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ret
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.next:
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add edi, 8
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jmp @b
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.unknown:
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mov [codec.chip_ids], chip_unknown
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ret
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endp
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align 4
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proc setup_codec
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xor eax, eax
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stdcall codec_write, dword CODEC_AUX_VOL
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mov eax, 0x1010
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stdcall codec_write, dword CODEC_MASTER_VOL_REG
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mov ax, 0x08
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stdcall codec_write, dword 0x0C
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mov ax, 0x0808
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stdcall codec_write, dword CODEC_PCM_OUT_REG
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mov ax, 0x0808
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stdcall codec_write, dword 0x10
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mov ax, 0x0808
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stdcall codec_write, dword 0x12
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mov ax, 0x0808
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stdcall codec_write, dword 0x16
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stdcall codec_read, dword CODEC_EXT_AUDIO_CTRL_REG
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and eax, 0FFFFh - BIT1 ; clear DRA (BIT1)
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or eax, BIT0 ; set VRA (BIT0)
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stdcall codec_write, dword CODEC_EXT_AUDIO_CTRL_REG
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stdcall set_sample_rate, dword 48000
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.init_error:
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xor eax, eax ; exit with error
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ret
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endp
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align 4
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proc set_master_vol stdcall, vol:dword
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mov ebx, 63
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mov ecx, 20644
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mov eax, [vol]
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cmp eax, 90
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jna @f
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mov eax, 90
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@@:
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mul ecx
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shr eax, 15
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sub ebx, eax
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mov ah, bl
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mov al, bl
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stdcall codec_write, dword CODEC_MASTER_VOL_REG
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ret
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endp
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align 4
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proc get_master_vol stdcall, pvol:dword
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stdcall codec_read, dword CODEC_MASTER_VOL_REG
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and eax, 0x3F
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mov ebx, 63
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mov ecx, 20644
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xchg eax, ebx
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sub eax, ebx
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shl eax, 15
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xor edx, edx
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div ecx
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mov ebx, [pvol]
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mov [ebx], eax
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ret
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endp
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align 4
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proc set_sample_rate stdcall, rate:dword
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mov eax, [rate]
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stdcall codec_write, dword CODEC_PCM_FRONT_DACRATE_REG
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ret
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endp
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align 16
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ac_unknown db 'unknown manufacturer',13,10,0
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ac_Realtek db 'Realtek Semiconductor',13,10,0
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ac_Analog db 'Analog Devices',13,10,0
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ac_CMedia db 'C-Media Electronics',13,10,0
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chip_unknown db 'unknown chip', 13,10,0
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CHIP_ANALOG equ 0x41445300
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CHIP_REALTEK equ 0x414C4700
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CHIP_CMEDIA equ 0x434D4900
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align 16
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codecs dd CHIP_ANALOG, ac_Analog, chips_Analog
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dd CHIP_CMEDIA, ac_CMedia, chips_CMedia
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dd CHIP_REALTEK,ac_Realtek, chips_Realtek
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dd 0
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align 16
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chips_Analog dd 0x03, chip_AD1819
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dd 0x40, chip_AD1881
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dd 0x48, chip_AD1881A
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dd 0x60, chip_AD1884
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dd 0x61, chip_AD1886
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dd 0x62, chip_AD1887
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dd 0x63, chip_AD1886A
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dd 0x70, chip_AD1980
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dd 0x75, chip_AD1985
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dd 0
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chips_Realtek dd 0x20, chip_ALC650
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dd 0x21, chip_ALC650D
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dd 0x22, chip_ALC650E
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dd 0x23, chip_ALC650F
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dd 0x60, chip_ALC655
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dd 0x80, chip_ALC658
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dd 0x81, chip_ALC658D
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dd 0x90, chip_ALC850
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dd 0
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chips_CMedia dd 0x41, chip_CM9738
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dd 0x61, chip_CM9739
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dd 0x69, chip_CM9780
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dd 0x78, chip_CM9761
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dd 0x82, chip_CM9761
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dd 0x83, chip_CM9761
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dd 0
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align 16
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;Analog Devices
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chip_AD1819 db 'AD1819 ',0dh,0ah,00h
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chip_AD1881 db 'AD1881 ',0dh,0ah,00h
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chip_AD1881A db 'AD1881A',0dh,0ah,00h
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chip_AD1884 db 'AD1885 ',0dh,0ah,00h
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chip_AD1885 db 'AD1885 ',0dh,0ah,00h
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chip_AD1886 db 'AD1886 ',0dh,0ah,00h
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chip_AD1886A db 'AD1886A',0dh,0ah,00h
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chip_AD1887 db 'AD1887 ',0dh,0ah,00h
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chip_AD1980 db 'AD1980 ',0dh,0ah,00h
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chip_AD1985 db 'AD1985 ',0dh,0ah,00h
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;Realtek
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chip_ALC650 db 'ALC650 ',0dh,0ah,00h
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chip_ALC650D db 'ALC650D',0dh,0ah,00h
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chip_ALC650E db 'ALC650E',0dh,0ah,00h
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chip_ALC650F db 'ALC650F',0dh,0ah,00h
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chip_ALC655 db 'ALC655 ',0dh,0ah,00h
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chip_ALC658 db 'ALC658 ',0dh,0ah,00h
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chip_ALC658D db 'ALC658D',0dh,0ah,00h
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chip_ALC850 db 'ALC850 ',0dh,0ah,00h
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;CMedia
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chip_CM9738 db 'CMI9738', 0dh,0ah,0
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chip_CM9739 db 'CMI9739', 0dh,0ah,0
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chip_CM9780 db 'CMI9780', 0dh,0ah,0
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chip_CM9761 db 'CMI9761', 0dh,0ah,0
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