Sample Code
Windows Driver Samples/ AC97 Driver Sample/ C++/ driver/ ac97reg.h/
/******************************************************************************** ** Copyright (c) 1998-2000 Microsoft Corporation. All Rights Reserved. ** ** Portions Copyright (c) 1998-1999 Intel Corporation ** ********************************************************************************/ /* The file ac97reg.h was reviewed by LCA in June 2011 and is acceptable for use by Microsoft. */ #ifndef _AC97REG_H_ #define _AC97REG_H_ // We use enum types cause the compiler can check variable passing if it is // an enum (otherwise you could pass any value). That doesn't save us from // doing reasonable run time checks in that range. enum AC97Register { AC97REG_RESET = 0, AC97REG_MASTER_VOLUME, AC97REG_HPHONE_VOLUME, AC97REG_MMONO_VOLUME, AC97REG_MASTER_TONE, AC97REG_BEEP_VOLUME, AC97REG_PHONE_VOLUME, AC97REG_MIC_VOLUME, AC97REG_LINE_IN_VOLUME, AC97REG_CD_VOLUME, AC97REG_VIDEO_VOLUME, AC97REG_AUX_VOLUME, AC97REG_PCM_OUT_VOLUME, AC97REG_RECORD_SELECT, AC97REG_RECORD_GAIN, AC97REG_RECORD_GAIN_MIC, AC97REG_GENERAL, AC97REG_3D_CONTROL, AC97REG_RESERVED, AC97REG_POWERDOWN, // AC97-2.0 registers AC97REG_EXT_AUDIO_ID, AC97REG_EXT_AUDIO_CTRL, AC97REG_FRONT_SAMPLERATE, AC97REG_SURROUND_SAMPLERATE, AC97REG_LFE_SAMPLERATE, AC97REG_RECORD_SAMPLERATE, AC97REG_MIC_SAMPLERATE, AC97REG_CENTER_LFE_VOLUME, AC97REG_SURROUND_VOLUME, AC97REG_RESERVED2, // Modem registers from 0x3C to 0x58 (next 15 enums) // Vendor Reserved = 0x5A-0x7A (next 16 enums) // Vendor IDs AC97REG_VENDOR_ID1 = 0x3E, // thats register address 0x7C AC97REG_VENDOR_ID2, // Defines an invalid register. Likewise, this is the highest // possible value that can be used. AC97REG_INVALID }; #if (DBG) // Note: This array only has the first 29 registers defined. // There are many more. const PCHAR RegStrings[] = { "REG_RESET", "REG_MASTER_VOLUME", "REG_HPHONE_VOLUME", "REG_MMONO_VOLUME", "REG_MASTER_TONE", "REG_BEEP_VOLUME", "REG_PHONE_VOLUME", "REG_MIC_VOLUME", "REG_LINEIN_VOLUME", "REG_CD_VOLUME", "REG_VIDEO_VOLUME", "REG_AUX_VOLUME", "REG_PCMOUT_VOLUME", "REG_RECORD_SELECT", "REG_RECORD_GAIN", "REG_RECORD_GAIN_MIC", "REG_GENERAL", "REG_3D_CONTROL", "REG_RESERVED", "REG_POWERDOWN", "REG_EXT_AUDIO_ID", "REG_EXT_AUDIO_CTRL", "REG_FRONT_SAMPLERATE", "REG_SURROUND_SAMPLERATE", "REG_LFE_SAMPLERATE", "REG_RECORD_SAMPLERATE", "REG_MIC_SAMPLERATE", "REG_CENTER_LFE_VOLUME", "REG_SURROUND_VOLUME", "REG_RESERVED2" }; #endif // This array maps the node controls to the AC97 registers. // E.g. if you mute the master volume control you should modify AC97 // register AC97REG_MASTER_VOLUME typedef struct { AC97Register reg; // we would only need one byte, but enums are int WORD mask; // registers are 16 bit. } tMapNodeToReg; const tMapNodeToReg stMapNodeToReg[] = { // TODO: loopback {AC97REG_PCM_OUT_VOLUME, 0x1F1F}, // NODE_WAVEOUT_VOLUME {AC97REG_PCM_OUT_VOLUME, 0x8000}, // NODE_WAVEOUT_MUTE {AC97REG_GENERAL, 0x8000}, // NODE_VIRT_WAVEOUT_3D_BYPASS {AC97REG_BEEP_VOLUME, 0x001E}, // NODE_PCBEEP_VOLUME {AC97REG_BEEP_VOLUME, 0x8000}, // NODE_PCBEEP_MUTE {AC97REG_PHONE_VOLUME, 0x001F}, // NODE_PHONE_VOLUME {AC97REG_PHONE_VOLUME, 0x8000}, // NODE_PHONE_MUTE {AC97REG_GENERAL, 0x0100}, // NODE_MIC_SELECT {AC97REG_MIC_VOLUME, 0x0040}, // NODE_MIC_BOOST {AC97REG_MIC_VOLUME, 0x001F}, // NODE_MIC_VOLUME {AC97REG_MIC_VOLUME, 0x8000}, // NODE_MIC_MUTE {AC97REG_LINE_IN_VOLUME, 0x1F1F}, // NODE_LINEIN_VOLUME {AC97REG_LINE_IN_VOLUME, 0x8000}, // NODE_LINEIN_MUTE {AC97REG_CD_VOLUME, 0x1F1F}, // NODE_CD_VOLUME {AC97REG_CD_VOLUME, 0x8000}, // NODE_CD_MUTE {AC97REG_VIDEO_VOLUME, 0x1F1F}, // NODE_VIDEO_VOLUME {AC97REG_VIDEO_VOLUME, 0x8000}, // NODE_VIDEO_MUTE {AC97REG_AUX_VOLUME, 0x1F1F}, // NODE_AUX_VOLUME {AC97REG_AUX_VOLUME, 0x8000}, // NODE_AUX_MUTE {AC97REG_INVALID, 0x0000}, // NODE_MAIN_MIX doesn't has controls {AC97REG_3D_CONTROL, 0x0F00}, // NODE_VIRT_3D_CENTER {AC97REG_3D_CONTROL, 0x000F}, // NODE_VIRT_3D_DEPTH {AC97REG_GENERAL, 0x2000}, // NODE_VIRT_3D_ENABLE {AC97REG_INVALID, 0x0000}, // NODE_BEEP_MIX doesn't has controls {AC97REG_MASTER_TONE, 0x0F00}, // NODE_BASS {AC97REG_MASTER_TONE, 0x000F}, // NODE_TREBLE {AC97REG_GENERAL, 0x1000}, // NODE_LOUDNESS {AC97REG_GENERAL, 0x4000}, // NODE_SIMUL_STEREO {AC97REG_MASTER_VOLUME, 0x3F3F}, // NODE_MASTEROUT_VOLUME {AC97REG_MASTER_VOLUME, 0x8000}, // NODE_MASTEROUT_MUTE {AC97REG_HPHONE_VOLUME, 0x3F3F}, // NODE_HPHONE_VOLUME {AC97REG_HPHONE_VOLUME, 0x8000}, // NODE_HPHONE_MUTE {AC97REG_GENERAL, 0x0200}, // NODE_MONOOUT_SELECT {AC97REG_MMONO_VOLUME, 0x803F}, // NODE_VIRT_MONOOUT_VOLUME1 {AC97REG_MMONO_VOLUME, 0x803F}, // NODE_VIRT_MONOOUT_VOLUME2 {AC97REG_RECORD_SELECT, 0x0707}, // NODE_WAVEIN_SELECT {AC97REG_RECORD_GAIN, 0x0F0F}, // NODE_VIRT_MASTER_INPUT_VOLUME1 {AC97REG_RECORD_GAIN, 0x0F0F}, // NODE_VIRT_MASTER_INPUT_VOLUME2 {AC97REG_RECORD_GAIN, 0x0F0F}, // NODE_VIRT_MASTER_INPUT_VOLUME3 {AC97REG_RECORD_GAIN, 0x0F0F}, // NODE_VIRT_MASTER_INPUT_VOLUME4 {AC97REG_RECORD_GAIN, 0x0F0F}, // NODE_VIRT_MASTER_INPUT_VOLUME5 {AC97REG_RECORD_GAIN, 0x0F0F}, // NODE_VIRT_MASTER_INPUT_VOLUME6 {AC97REG_RECORD_GAIN, 0x0F0F}, // NODE_VIRT_MASTER_INPUT_VOLUME7 {AC97REG_RECORD_GAIN, 0x0F0F}, // NODE_VIRT_MASTER_INPUT_VOLUME8 {AC97REG_RECORD_GAIN_MIC, 0x000F}, // NODE_MICIN_VOLUME {AC97REG_RECORD_GAIN_MIC, 0x8000}, // NODE_MICIN_MUTE {AC97REG_SURROUND_VOLUME, 0x3F3F}, // NODE_SURROUND_VOLUME {AC97REG_SURROUND_VOLUME, 0x8080}, // NODE_SURROUND_MUTE {AC97REG_CENTER_LFE_VOLUME, 0x3F00},// NODE_CENTER_VOLUME {AC97REG_CENTER_LFE_VOLUME, 0x8000},// NODE_CENTER_MUTE {AC97REG_CENTER_LFE_VOLUME, 0x003F},// NODE_LFE_VOLUME {AC97REG_CENTER_LFE_VOLUME, 0x0080},// NODE_LFE_MUTE {AC97REG_MASTER_VOLUME, 0x3F3F}, // NODE_FRONT_VOLUME {AC97REG_MASTER_VOLUME, 0x8000}, // NODE_FRONT_MUTE {AC97REG_INVALID, 0x0000}, // NODE_VIRT_MASTERMONO_VOLUME doesn't have controls {AC97REG_INVALID, 0x0000} // NODE_VIRT_MASTERMONO_MUTE doesn't have controls }; #endif //_AC97REG_H_
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