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linux/include/sound/ac97_codec.h
Liam Girdwood 0ca06a00e2 [ALSA] AC97 bus interface for ad-hoc drivers 
AC97 Codec,PCI drivers
I've made the review changes and as requested I've pasted the RFC by
Nicolas below:-

'I would like to know what people think of the following patch.  It
allows for a codec on an AC97 bus to be shared with other drivers which
are completely unrelated to audio.  It registers a new bus type, and
whenever a codec instance is created then a device for it is also
registered with the driver model using that bus type.  This allows, for
example, to use the extra features of the UCB1400 like the touchscreen
interface and the additional GPIOs and ADCs available on that chip for
battery monitoring.  I have a working UCB1400 touchscreen driver here
that simply registers with the driver model happily working alongside
with audio features using this.'

Changes over RFC:-

  o Now matches codec name within codec group.
  o Added ac97_dev_release() to stop kernel complaining about no release
method for device.
  o Added 'config SND_AC97_BUS' to sound/pci/Kconfig and moved 'config
SND_AC97_CODEC' out with the PCI=n statement.
  o module is now called snd-ac97-bus

Signed-off-by: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-08-30 08:43:26 +02:00

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#ifndef __SOUND_AC97_CODEC_H
#define __SOUND_AC97_CODEC_H
/*
* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
* Universal interface for Audio Codec '97
*
* For more details look to AC '97 component specification revision 2.1
* by Intel Corporation (http://developer.intel.com).
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/bitops.h>
#include <linux/device.h>
#include "pcm.h"
#include "control.h"
#include "info.h"
/*
* AC'97 codec registers
*/
#define AC97_RESET 0x00 /* Reset */
#define AC97_MASTER 0x02 /* Master Volume */
#define AC97_HEADPHONE 0x04 /* Headphone Volume (optional) */
#define AC97_MASTER_MONO 0x06 /* Master Volume Mono (optional) */
#define AC97_MASTER_TONE 0x08 /* Master Tone (Bass & Treble) (optional) */
#define AC97_PC_BEEP 0x0a /* PC Beep Volume (optinal) */
#define AC97_PHONE 0x0c /* Phone Volume (optional) */
#define AC97_MIC 0x0e /* MIC Volume */
#define AC97_LINE 0x10 /* Line In Volume */
#define AC97_CD 0x12 /* CD Volume */
#define AC97_VIDEO 0x14 /* Video Volume (optional) */
#define AC97_AUX 0x16 /* AUX Volume (optional) */
#define AC97_PCM 0x18 /* PCM Volume */
#define AC97_REC_SEL 0x1a /* Record Select */
#define AC97_REC_GAIN 0x1c /* Record Gain */
#define AC97_REC_GAIN_MIC 0x1e /* Record Gain MIC (optional) */
#define AC97_GENERAL_PURPOSE 0x20 /* General Purpose (optional) */
#define AC97_3D_CONTROL 0x22 /* 3D Control (optional) */
#define AC97_INT_PAGING 0x24 /* Audio Interrupt & Paging (AC'97 2.3) */
#define AC97_POWERDOWN 0x26 /* Powerdown control / status */
/* range 0x28-0x3a - AUDIO AC'97 2.0 extensions */
#define AC97_EXTENDED_ID 0x28 /* Extended Audio ID */
#define AC97_EXTENDED_STATUS 0x2a /* Extended Audio Status and Control */
#define AC97_PCM_FRONT_DAC_RATE 0x2c /* PCM Front DAC Rate */
#define AC97_PCM_SURR_DAC_RATE 0x2e /* PCM Surround DAC Rate */
#define AC97_PCM_LFE_DAC_RATE 0x30 /* PCM LFE DAC Rate */
#define AC97_PCM_LR_ADC_RATE 0x32 /* PCM LR ADC Rate */
#define AC97_PCM_MIC_ADC_RATE 0x34 /* PCM MIC ADC Rate */
#define AC97_CENTER_LFE_MASTER 0x36 /* Center + LFE Master Volume */
#define AC97_SURROUND_MASTER 0x38 /* Surround (Rear) Master Volume */
#define AC97_SPDIF 0x3a /* S/PDIF control */
/* range 0x3c-0x58 - MODEM */
#define AC97_EXTENDED_MID 0x3c /* Extended Modem ID */
#define AC97_EXTENDED_MSTATUS 0x3e /* Extended Modem Status and Control */
#define AC97_LINE1_RATE 0x40 /* Line1 DAC/ADC Rate */
#define AC97_LINE2_RATE 0x42 /* Line2 DAC/ADC Rate */
#define AC97_HANDSET_RATE 0x44 /* Handset DAC/ADC Rate */
#define AC97_LINE1_LEVEL 0x46 /* Line1 DAC/ADC Level */
#define AC97_LINE2_LEVEL 0x48 /* Line2 DAC/ADC Level */
#define AC97_HANDSET_LEVEL 0x4a /* Handset DAC/ADC Level */
#define AC97_GPIO_CFG 0x4c /* GPIO Configuration */
#define AC97_GPIO_POLARITY 0x4e /* GPIO Pin Polarity/Type, 0=low, 1=high active */
#define AC97_GPIO_STICKY 0x50 /* GPIO Pin Sticky, 0=not, 1=sticky */
#define AC97_GPIO_WAKEUP 0x52 /* GPIO Pin Wakeup, 0=no int, 1=yes int */
#define AC97_GPIO_STATUS 0x54 /* GPIO Pin Status, slot 12 */
#define AC97_MISC_AFE 0x56 /* Miscellaneous Modem AFE Status and Control */
/* range 0x5a-0x7b - Vendor Specific */
#define AC97_VENDOR_ID1 0x7c /* Vendor ID1 */
#define AC97_VENDOR_ID2 0x7e /* Vendor ID2 / revision */
/* range 0x60-0x6f (page 1) - extended codec registers */
#define AC97_CODEC_CLASS_REV 0x60 /* Codec Class/Revision */
#define AC97_PCI_SVID 0x62 /* PCI Subsystem Vendor ID */
#define AC97_PCI_SID 0x64 /* PCI Subsystem ID */
#define AC97_FUNC_SELECT 0x66 /* Function Select */
#define AC97_FUNC_INFO 0x68 /* Function Information */
#define AC97_SENSE_INFO 0x6a /* Sense Details */
/* slot allocation */
#define AC97_SLOT_TAG 0
#define AC97_SLOT_CMD_ADDR 1
#define AC97_SLOT_CMD_DATA 2
#define AC97_SLOT_PCM_LEFT 3
#define AC97_SLOT_PCM_RIGHT 4
#define AC97_SLOT_MODEM_LINE1 5
#define AC97_SLOT_PCM_CENTER 6
#define AC97_SLOT_MIC 6 /* input */
#define AC97_SLOT_SPDIF_LEFT1 6
#define AC97_SLOT_PCM_SLEFT 7 /* surround left */
#define AC97_SLOT_PCM_LEFT_0 7 /* double rate operation */
#define AC97_SLOT_SPDIF_LEFT 7
#define AC97_SLOT_PCM_SRIGHT 8 /* surround right */
#define AC97_SLOT_PCM_RIGHT_0 8 /* double rate operation */
#define AC97_SLOT_SPDIF_RIGHT 8
#define AC97_SLOT_LFE 9
#define AC97_SLOT_SPDIF_RIGHT1 9
#define AC97_SLOT_MODEM_LINE2 10
#define AC97_SLOT_PCM_LEFT_1 10 /* double rate operation */
#define AC97_SLOT_SPDIF_LEFT2 10
#define AC97_SLOT_HANDSET 11 /* output */
#define AC97_SLOT_PCM_RIGHT_1 11 /* double rate operation */
#define AC97_SLOT_SPDIF_RIGHT2 11
#define AC97_SLOT_MODEM_GPIO 12 /* modem GPIO */
#define AC97_SLOT_PCM_CENTER_1 12 /* double rate operation */
/* basic capabilities (reset register) */
#define AC97_BC_DEDICATED_MIC 0x0001 /* Dedicated Mic PCM In Channel */
#define AC97_BC_RESERVED1 0x0002 /* Reserved (was Modem Line Codec support) */
#define AC97_BC_BASS_TREBLE 0x0004 /* Bass & Treble Control */
#define AC97_BC_SIM_STEREO 0x0008 /* Simulated stereo */
#define AC97_BC_HEADPHONE 0x0010 /* Headphone Out Support */
#define AC97_BC_LOUDNESS 0x0020 /* Loudness (bass boost) Support */
#define AC97_BC_16BIT_DAC 0x0000 /* 16-bit DAC resolution */
#define AC97_BC_18BIT_DAC 0x0040 /* 18-bit DAC resolution */
#define AC97_BC_20BIT_DAC 0x0080 /* 20-bit DAC resolution */
#define AC97_BC_DAC_MASK 0x00c0
#define AC97_BC_16BIT_ADC 0x0000 /* 16-bit ADC resolution */
#define AC97_BC_18BIT_ADC 0x0100 /* 18-bit ADC resolution */
#define AC97_BC_20BIT_ADC 0x0200 /* 20-bit ADC resolution */
#define AC97_BC_ADC_MASK 0x0300
/* general purpose */
#define AC97_GP_DRSS_MASK 0x0c00 /* double rate slot select */
#define AC97_GP_DRSS_1011 0x0000 /* LR(C) 10+11(+12) */
#define AC97_GP_DRSS_78 0x0400 /* LR 7+8 */
/* extended audio ID bit defines */
#define AC97_EI_VRA 0x0001 /* Variable bit rate supported */
#define AC97_EI_DRA 0x0002 /* Double rate supported */
#define AC97_EI_SPDIF 0x0004 /* S/PDIF out supported */
#define AC97_EI_VRM 0x0008 /* Variable bit rate supported for MIC */
#define AC97_EI_DACS_SLOT_MASK 0x0030 /* DACs slot assignment */
#define AC97_EI_DACS_SLOT_SHIFT 4
#define AC97_EI_CDAC 0x0040 /* PCM Center DAC available */
#define AC97_EI_SDAC 0x0080 /* PCM Surround DACs available */
#define AC97_EI_LDAC 0x0100 /* PCM LFE DAC available */
#define AC97_EI_AMAP 0x0200 /* indicates optional slot/DAC mapping based on codec ID */
#define AC97_EI_REV_MASK 0x0c00 /* AC'97 revision mask */
#define AC97_EI_REV_22 0x0400 /* AC'97 revision 2.2 */
#define AC97_EI_REV_23 0x0800 /* AC'97 revision 2.3 */
#define AC97_EI_REV_SHIFT 10
#define AC97_EI_ADDR_MASK 0xc000 /* physical codec ID (address) */
#define AC97_EI_ADDR_SHIFT 14
/* extended audio status and control bit defines */
#define AC97_EA_VRA 0x0001 /* Variable bit rate enable bit */
#define AC97_EA_DRA 0x0002 /* Double-rate audio enable bit */
#define AC97_EA_SPDIF 0x0004 /* S/PDIF out enable bit */
#define AC97_EA_VRM 0x0008 /* Variable bit rate for MIC enable bit */
#define AC97_EA_SPSA_SLOT_MASK 0x0030 /* Mask for slot assignment bits */
#define AC97_EA_SPSA_SLOT_SHIFT 4
#define AC97_EA_SPSA_3_4 0x0000 /* Slot assigned to 3 & 4 */
#define AC97_EA_SPSA_7_8 0x0010 /* Slot assigned to 7 & 8 */
#define AC97_EA_SPSA_6_9 0x0020 /* Slot assigned to 6 & 9 */
#define AC97_EA_SPSA_10_11 0x0030 /* Slot assigned to 10 & 11 */
#define AC97_EA_CDAC 0x0040 /* PCM Center DAC is ready (Read only) */
#define AC97_EA_SDAC 0x0080 /* PCM Surround DACs are ready (Read only) */
#define AC97_EA_LDAC 0x0100 /* PCM LFE DAC is ready (Read only) */
#define AC97_EA_MDAC 0x0200 /* MIC ADC is ready (Read only) */
#define AC97_EA_SPCV 0x0400 /* S/PDIF configuration valid (Read only) */
#define AC97_EA_PRI 0x0800 /* Turns the PCM Center DAC off */
#define AC97_EA_PRJ 0x1000 /* Turns the PCM Surround DACs off */
#define AC97_EA_PRK 0x2000 /* Turns the PCM LFE DAC off */
#define AC97_EA_PRL 0x4000 /* Turns the MIC ADC off */
/* S/PDIF control bit defines */
#define AC97_SC_PRO 0x0001 /* Professional status */
#define AC97_SC_NAUDIO 0x0002 /* Non audio stream */
#define AC97_SC_COPY 0x0004 /* Copyright status */
#define AC97_SC_PRE 0x0008 /* Preemphasis status */
#define AC97_SC_CC_MASK 0x07f0 /* Category Code mask */
#define AC97_SC_CC_SHIFT 4
#define AC97_SC_L 0x0800 /* Generation Level status */
#define AC97_SC_SPSR_MASK 0x3000 /* S/PDIF Sample Rate bits */
#define AC97_SC_SPSR_SHIFT 12
#define AC97_SC_SPSR_44K 0x0000 /* Use 44.1kHz Sample rate */
#define AC97_SC_SPSR_48K 0x2000 /* Use 48kHz Sample rate */
#define AC97_SC_SPSR_32K 0x3000 /* Use 32kHz Sample rate */
#define AC97_SC_DRS 0x4000 /* Double Rate S/PDIF */
#define AC97_SC_V 0x8000 /* Validity status */
/* Interrupt and Paging bit defines (AC'97 2.3) */
#define AC97_PAGE_MASK 0x000f /* Page Selector */
#define AC97_PAGE_VENDOR 0 /* Vendor-specific registers */
#define AC97_PAGE_1 1 /* Extended Codec Registers page 1 */
#define AC97_INT_ENABLE 0x0800 /* Interrupt Enable */
#define AC97_INT_SENSE 0x1000 /* Sense Cycle */
#define AC97_INT_CAUSE_SENSE 0x2000 /* Sense Cycle Completed (RO) */
#define AC97_INT_CAUSE_GPIO 0x4000 /* GPIO bits changed (RO) */
#define AC97_INT_STATUS 0x8000 /* Interrupt Status */
/* extended modem ID bit defines */
#define AC97_MEI_LINE1 0x0001 /* Line1 present */
#define AC97_MEI_LINE2 0x0002 /* Line2 present */
#define AC97_MEI_HANDSET 0x0004 /* Handset present */
#define AC97_MEI_CID1 0x0008 /* caller ID decode for Line1 is supported */
#define AC97_MEI_CID2 0x0010 /* caller ID decode for Line2 is supported */
#define AC97_MEI_ADDR_MASK 0xc000 /* physical codec ID (address) */
#define AC97_MEI_ADDR_SHIFT 14
/* extended modem status and control bit defines */
#define AC97_MEA_GPIO 0x0001 /* GPIO is ready (ro) */
#define AC97_MEA_MREF 0x0002 /* Vref is up to nominal level (ro) */
#define AC97_MEA_ADC1 0x0004 /* ADC1 operational (ro) */
#define AC97_MEA_DAC1 0x0008 /* DAC1 operational (ro) */
#define AC97_MEA_ADC2 0x0010 /* ADC2 operational (ro) */
#define AC97_MEA_DAC2 0x0020 /* DAC2 operational (ro) */
#define AC97_MEA_HADC 0x0040 /* HADC operational (ro) */
#define AC97_MEA_HDAC 0x0080 /* HDAC operational (ro) */
#define AC97_MEA_PRA 0x0100 /* GPIO power down (high) */
#define AC97_MEA_PRB 0x0200 /* reserved */
#define AC97_MEA_PRC 0x0400 /* ADC1 power down (high) */
#define AC97_MEA_PRD 0x0800 /* DAC1 power down (high) */
#define AC97_MEA_PRE 0x1000 /* ADC2 power down (high) */
#define AC97_MEA_PRF 0x2000 /* DAC2 power down (high) */
#define AC97_MEA_PRG 0x4000 /* HADC power down (high) */
#define AC97_MEA_PRH 0x8000 /* HDAC power down (high) */
/* modem gpio status defines */
#define AC97_GPIO_LINE1_OH 0x0001 /* Off Hook Line1 */
#define AC97_GPIO_LINE1_RI 0x0002 /* Ring Detect Line1 */
#define AC97_GPIO_LINE1_CID 0x0004 /* Caller ID path enable Line1 */
#define AC97_GPIO_LINE1_LCS 0x0008 /* Loop Current Sense Line1 */
#define AC97_GPIO_LINE1_PULSE 0x0010 /* Opt./ Pulse Dial Line1 (out) */
#define AC97_GPIO_LINE1_HL1R 0x0020 /* Opt./ Handset to Line1 relay control (out) */
#define AC97_GPIO_LINE1_HOHD 0x0040 /* Opt./ Handset off hook detect Line1 (in) */
#define AC97_GPIO_LINE12_AC 0x0080 /* Opt./ Int.bit 1 / Line1/2 AC (out) */
#define AC97_GPIO_LINE12_DC 0x0100 /* Opt./ Int.bit 2 / Line1/2 DC (out) */
#define AC97_GPIO_LINE12_RS 0x0200 /* Opt./ Int.bit 3 / Line1/2 RS (out) */
#define AC97_GPIO_LINE2_OH 0x0400 /* Off Hook Line2 */
#define AC97_GPIO_LINE2_RI 0x0800 /* Ring Detect Line2 */
#define AC97_GPIO_LINE2_CID 0x1000 /* Caller ID path enable Line2 */
#define AC97_GPIO_LINE2_LCS 0x2000 /* Loop Current Sense Line2 */
#define AC97_GPIO_LINE2_PULSE 0x4000 /* Opt./ Pulse Dial Line2 (out) */
#define AC97_GPIO_LINE2_HL1R 0x8000 /* Opt./ Handset to Line2 relay control (out) */
/* specific - SigmaTel */
#define AC97_SIGMATEL_OUTSEL 0x64 /* Output Select, STAC9758 */
#define AC97_SIGMATEL_INSEL 0x66 /* Input Select, STAC9758 */
#define AC97_SIGMATEL_IOMISC 0x68 /* STAC9758 */
#define AC97_SIGMATEL_ANALOG 0x6c /* Analog Special */
#define AC97_SIGMATEL_DAC2INVERT 0x6e
#define AC97_SIGMATEL_BIAS1 0x70
#define AC97_SIGMATEL_BIAS2 0x72
#define AC97_SIGMATEL_VARIOUS 0x72 /* STAC9758 */
#define AC97_SIGMATEL_MULTICHN 0x74 /* Multi-Channel programming */
#define AC97_SIGMATEL_CIC1 0x76
#define AC97_SIGMATEL_CIC2 0x78
/* specific - Analog Devices */
#define AC97_AD_TEST 0x5a /* test register */
#define AC97_AD_CODEC_CFG 0x70 /* codec configuration */
#define AC97_AD_JACK_SPDIF 0x72 /* Jack Sense & S/PDIF */
#define AC97_AD_SERIAL_CFG 0x74 /* Serial Configuration */
#define AC97_AD_MISC 0x76 /* Misc Control Bits */
/* specific - Cirrus Logic */
#define AC97_CSR_ACMODE 0x5e /* AC Mode Register */
#define AC97_CSR_MISC_CRYSTAL 0x60 /* Misc Crystal Control */
#define AC97_CSR_SPDIF 0x68 /* S/PDIF Register */
#define AC97_CSR_SERIAL 0x6a /* Serial Port Control */
#define AC97_CSR_SPECF_ADDR 0x6c /* Special Feature Address */
#define AC97_CSR_SPECF_DATA 0x6e /* Special Feature Data */
#define AC97_CSR_BDI_STATUS 0x7a /* BDI Status */
/* specific - Conexant */
#define AC97_CXR_AUDIO_MISC 0x5c
#define AC97_CXR_SPDIFEN (1<<3)
#define AC97_CXR_COPYRGT (1<<2)
#define AC97_CXR_SPDIF_MASK (3<<0)
#define AC97_CXR_SPDIF_PCM 0x0
#define AC97_CXR_SPDIF_AC3 0x2
/* specific - ALC */
#define AC97_ALC650_SPDIF_INPUT_STATUS1 0x60
/* S/PDIF input status 1 bit defines */
#define AC97_ALC650_PRO 0x0001 /* Professional status */
#define AC97_ALC650_NAUDIO 0x0002 /* Non audio stream */
#define AC97_ALC650_COPY 0x0004 /* Copyright status */
#define AC97_ALC650_PRE 0x0038 /* Preemphasis status */
#define AC97_ALC650_PRE_SHIFT 3
#define AC97_ALC650_MODE 0x00C0 /* Preemphasis status */
#define AC97_ALC650_MODE_SHIFT 6
#define AC97_ALC650_CC_MASK 0x7f00 /* Category Code mask */
#define AC97_ALC650_CC_SHIFT 8
#define AC97_ALC650_L 0x8000 /* Generation Level status */
#define AC97_ALC650_SPDIF_INPUT_STATUS2 0x62
/* S/PDIF input status 2 bit defines */
#define AC97_ALC650_SOUCE_MASK 0x000f /* Source number */
#define AC97_ALC650_CHANNEL_MASK 0x00f0 /* Channel number */
#define AC97_ALC650_CHANNEL_SHIFT 4
#define AC97_ALC650_SPSR_MASK 0x0f00 /* S/PDIF Sample Rate bits */
#define AC97_ALC650_SPSR_SHIFT 8
#define AC97_ALC650_SPSR_44K 0x0000 /* Use 44.1kHz Sample rate */
#define AC97_ALC650_SPSR_48K 0x0200 /* Use 48kHz Sample rate */
#define AC97_ALC650_SPSR_32K 0x0300 /* Use 32kHz Sample rate */
#define AC97_ALC650_CLOCK_ACCURACY 0x3000 /* Clock accuracy */
#define AC97_ALC650_CLOCK_SHIFT 12
#define AC97_ALC650_CLOCK_LOCK 0x4000 /* Clock locked status */
#define AC97_ALC650_V 0x8000 /* Validity status */
#define AC97_ALC650_SURR_DAC_VOL 0x64
#define AC97_ALC650_LFE_DAC_VOL 0x66
#define AC97_ALC650_UNKNOWN1 0x68
#define AC97_ALC650_MULTICH 0x6a
#define AC97_ALC650_UNKNOWN2 0x6c
#define AC97_ALC650_REVISION 0x6e
#define AC97_ALC650_UNKNOWN3 0x70
#define AC97_ALC650_UNKNOWN4 0x72
#define AC97_ALC650_MISC 0x74
#define AC97_ALC650_GPIO_SETUP 0x76
#define AC97_ALC650_GPIO_STATUS 0x78
#define AC97_ALC650_CLOCK 0x7a
/* specific - Yamaha YMF753 */
#define AC97_YMF753_DIT_CTRL2 0x66 /* DIT Control 2 */
#define AC97_YMF753_3D_MODE_SEL 0x68 /* 3D Mode Select */
/* specific - C-Media */
#define AC97_CM9738_VENDOR_CTRL 0x5a
#define AC97_CM9739_MULTI_CHAN 0x64
#define AC97_CM9739_SPDIF_IN_STATUS 0x68 /* 32bit */
#define AC97_CM9739_SPDIF_CTRL 0x6c
/* specific - wolfson */
#define AC97_WM97XX_FMIXER_VOL 0x72
#define AC97_WM9704_RMIXER_VOL 0x74
#define AC97_WM9704_TEST 0x5a
#define AC97_WM9704_RPCM_VOL 0x70
#define AC97_WM9711_OUT3VOL 0x16
/* ac97->scaps */
#define AC97_SCAP_AUDIO (1<<0) /* audio codec 97 */
#define AC97_SCAP_MODEM (1<<1) /* modem codec 97 */
#define AC97_SCAP_SURROUND_DAC (1<<2) /* surround L&R DACs are present */
#define AC97_SCAP_CENTER_LFE_DAC (1<<3) /* center and LFE DACs are present */
#define AC97_SCAP_SKIP_AUDIO (1<<4) /* skip audio part of codec */
#define AC97_SCAP_SKIP_MODEM (1<<5) /* skip modem part of codec */
#define AC97_SCAP_INDEP_SDIN (1<<6) /* independent SDIN */
#define AC97_SCAP_INV_EAPD (1<<7) /* inverted EAPD */
#define AC97_SCAP_DETECT_BY_VENDOR (1<<8) /* use vendor registers for read tests */
#define AC97_SCAP_NO_SPDIF (1<<9) /* don't build SPDIF controls */
/* ac97->flags */
#define AC97_HAS_PC_BEEP (1<<0) /* force PC Speaker usage */
#define AC97_AD_MULTI (1<<1) /* Analog Devices - multi codecs */
#define AC97_CS_SPDIF (1<<2) /* Cirrus Logic uses funky SPDIF */
#define AC97_CX_SPDIF (1<<3) /* Conexant's spdif interface */
#define AC97_STEREO_MUTES (1<<4) /* has stereo mute bits */
#define AC97_DOUBLE_RATE (1<<5) /* supports double rate playback */
#define AC97_HAS_NO_MASTER_VOL (1<<6) /* no Master volume */
#define AC97_HAS_NO_PCM_VOL (1<<7) /* no PCM volume */
#define AC97_DEFAULT_POWER_OFF (1<<8) /* no RESET write */
#define AC97_MODEM_PATCH (1<<9) /* modem patch */
#define AC97_HAS_NO_REC_GAIN (1<<10) /* no Record gain */
#define AC97_HAS_NO_PHONE (1<<11) /* no PHONE volume */
#define AC97_HAS_NO_PC_BEEP (1<<12) /* no PC Beep volume */
#define AC97_HAS_NO_VIDEO (1<<13) /* no Video volume */
#define AC97_HAS_NO_CD (1<<14) /* no CD volume */
#define AC97_HAS_NO_MIC (1<<15) /* no MIC volume */
#define AC97_HAS_NO_TONE (1<<16) /* no Tone volume */
#define AC97_HAS_NO_STD_PCM (1<<17) /* no standard AC97 PCM volume and mute */
/* rates indexes */
#define AC97_RATES_FRONT_DAC 0
#define AC97_RATES_SURR_DAC 1
#define AC97_RATES_LFE_DAC 2
#define AC97_RATES_ADC 3
#define AC97_RATES_MIC_ADC 4
#define AC97_RATES_SPDIF 5
/* shared controllers */
enum {
AC97_SHARED_TYPE_NONE,
AC97_SHARED_TYPE_ICH,
AC97_SHARED_TYPE_ATIIXP,
AC97_SHARED_TYPE_VIA,
AC97_SHARED_TYPES
};
/*
*
*/
typedef struct _snd_ac97_bus ac97_bus_t;
typedef struct _snd_ac97_bus_ops ac97_bus_ops_t;
typedef struct _snd_ac97_template ac97_template_t;
typedef struct _snd_ac97 ac97_t;
enum ac97_pcm_cfg {
AC97_PCM_CFG_FRONT = 2,
AC97_PCM_CFG_REAR = 10, /* alias surround */
AC97_PCM_CFG_LFE = 11, /* center + lfe */
AC97_PCM_CFG_40 = 4, /* front + rear */
AC97_PCM_CFG_51 = 6, /* front + rear + center/lfe */
AC97_PCM_CFG_SPDIF = 20
};
/* PCM allocation */
struct ac97_pcm {
ac97_bus_t *bus;
unsigned int stream: 1, /* stream type: 1 = capture */
exclusive: 1, /* exclusive mode, don't override with other pcms */
copy_flag: 1, /* lowlevel driver must fill all entries */
spdif: 1; /* spdif pcm */
unsigned short aslots; /* active slots */
unsigned int rates; /* available rates */
struct {
unsigned short slots; /* driver input: requested AC97 slot numbers */
unsigned short rslots[4]; /* allocated slots per codecs */
unsigned char rate_table[4];
ac97_t *codec[4]; /* allocated codecs */
} r[2]; /* 0 = standard rates, 1 = double rates */
unsigned long private_value; /* used by the hardware driver */
};
struct snd_ac97_build_ops {
int (*build_3d) (ac97_t *ac97);
int (*build_specific) (ac97_t *ac97);
int (*build_spdif) (ac97_t *ac97);
int (*build_post_spdif) (ac97_t *ac97);
#ifdef CONFIG_PM
void (*suspend) (ac97_t *ac97);
void (*resume) (ac97_t *ac97);
#endif
void (*update_jacks) (ac97_t *ac97); /* for jack-sharing */
};
struct _snd_ac97_bus_ops {
void (*reset) (ac97_t *ac97);
void (*write) (ac97_t *ac97, unsigned short reg, unsigned short val);
unsigned short (*read) (ac97_t *ac97, unsigned short reg);
void (*wait) (ac97_t *ac97);
void (*init) (ac97_t *ac97);
};
struct _snd_ac97_bus {
/* -- lowlevel (hardware) driver specific -- */
ac97_bus_ops_t *ops;
void *private_data;
void (*private_free) (ac97_bus_t *bus);
/* --- */
snd_card_t *card;
unsigned short num; /* bus number */
unsigned short no_vra: 1, /* bridge doesn't support VRA */
dra: 1, /* bridge supports double rate */
isdin: 1;/* independent SDIN */
unsigned int clock; /* AC'97 base clock (usually 48000Hz) */
spinlock_t bus_lock; /* used mainly for slot allocation */
unsigned short used_slots[2][4]; /* actually used PCM slots */
unsigned short pcms_count; /* count of PCMs */
struct ac97_pcm *pcms;
unsigned int shared_type; /* type of shared controller betwen audio and modem */
ac97_t *codec[4];
snd_info_entry_t *proc;
};
struct _snd_ac97_template {
void *private_data;
void (*private_free) (ac97_t *ac97);
struct pci_dev *pci; /* assigned PCI device - used for quirks */
unsigned short num; /* number of codec: 0 = primary, 1 = secondary */
unsigned short addr; /* physical address of codec [0-3] */
unsigned int scaps; /* driver capabilities */
unsigned int limited_regs; /* allow limited registers only */
DECLARE_BITMAP(reg_accessed, 0x80); /* bit flags */
};
struct _snd_ac97 {
/* -- lowlevel (hardware) driver specific -- */
struct snd_ac97_build_ops * build_ops;
void *private_data;
void (*private_free) (ac97_t *ac97);
/* --- */
ac97_bus_t *bus;
struct pci_dev *pci; /* assigned PCI device - used for quirks */
snd_info_entry_t *proc;
snd_info_entry_t *proc_regs;
unsigned short subsystem_vendor;
unsigned short subsystem_device;
struct semaphore reg_mutex;
struct semaphore page_mutex; /* mutex for AD18xx multi-codecs and paging (2.3) */
unsigned short num; /* number of codec: 0 = primary, 1 = secondary */
unsigned short addr; /* physical address of codec [0-3] */
unsigned int id; /* identification of codec */
unsigned short caps; /* capabilities (register 0) */
unsigned short ext_id; /* extended feature identification (register 28) */
unsigned short ext_mid; /* extended modem ID (register 3C) */
unsigned int scaps; /* driver capabilities */
unsigned int flags; /* specific code */
unsigned int rates[6]; /* see AC97_RATES_* defines */
unsigned int spdif_status;
unsigned short regs[0x80]; /* register cache */
unsigned int limited_regs; /* allow limited registers only */
DECLARE_BITMAP(reg_accessed, 0x80); /* bit flags */
union { /* vendor specific code */
struct {
unsigned short unchained[3]; // 0 = C34, 1 = C79, 2 = C69
unsigned short chained[3]; // 0 = C34, 1 = C79, 2 = C69
unsigned short id[3]; // codec IDs (lower 16-bit word)
unsigned short pcmreg[3]; // PCM registers
unsigned short codec_cfg[3]; // CODEC_CFG bits
} ad18xx;
unsigned int dev_flags; /* device specific */
} spec;
/* jack-sharing info */
unsigned char indep_surround;
unsigned char channel_mode;
struct device dev;
};
/* conditions */
static inline int ac97_is_audio(ac97_t * ac97)
{
return (ac97->scaps & AC97_SCAP_AUDIO);
}
static inline int ac97_is_modem(ac97_t * ac97)
{
return (ac97->scaps & AC97_SCAP_MODEM);
}
static inline int ac97_is_rev22(ac97_t * ac97)
{
return (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_22;
}
static inline int ac97_can_amap(ac97_t * ac97)
{
return (ac97->ext_id & AC97_EI_AMAP) != 0;
}
static inline int ac97_can_spdif(ac97_t * ac97)
{
return (ac97->ext_id & AC97_EI_SPDIF) != 0;
}
/* functions */
int snd_ac97_bus(snd_card_t *card, int num, ac97_bus_ops_t *ops, void *private_data, ac97_bus_t **rbus); /* create new AC97 bus */
int snd_ac97_mixer(ac97_bus_t *bus, ac97_template_t *template, ac97_t **rac97); /* create mixer controls */
const char *snd_ac97_get_short_name(ac97_t *ac97);
void snd_ac97_write(ac97_t *ac97, unsigned short reg, unsigned short value);
unsigned short snd_ac97_read(ac97_t *ac97, unsigned short reg);
void snd_ac97_write_cache(ac97_t *ac97, unsigned short reg, unsigned short value);
int snd_ac97_update(ac97_t *ac97, unsigned short reg, unsigned short value);
int snd_ac97_update_bits(ac97_t *ac97, unsigned short reg, unsigned short mask, unsigned short value);
#ifdef CONFIG_PM
void snd_ac97_suspend(ac97_t *ac97);
void snd_ac97_resume(ac97_t *ac97);
#endif
/* quirk types */
enum {
AC97_TUNE_DEFAULT = -1, /* use default from quirk list (not valid in list) */
AC97_TUNE_NONE = 0, /* nothing extra to do */
AC97_TUNE_HP_ONLY, /* headphone (true line-out) control as master only */
AC97_TUNE_SWAP_HP, /* swap headphone and master controls */
AC97_TUNE_SWAP_SURROUND, /* swap master and surround controls */
AC97_TUNE_AD_SHARING, /* for AD1985, turn on OMS bit and use headphone */
AC97_TUNE_ALC_JACK, /* for Realtek, enable JACK detection */
AC97_TUNE_INV_EAPD, /* inverted EAPD implementation */
AC97_TUNE_MUTE_LED, /* EAPD bit works as mute LED */
};
struct ac97_quirk {
unsigned short subvendor; /* PCI subsystem vendor id */
unsigned short subdevice; /* PCI sybsystem device id */
unsigned short mask; /* device id bit mask, 0 = accept all */
unsigned int codec_id; /* codec id (if any), 0 = accept all */
const char *name; /* name shown as info */
int type; /* quirk type above */
};
int snd_ac97_tune_hardware(ac97_t *ac97, struct ac97_quirk *quirk, const char *override);
int snd_ac97_set_rate(ac97_t *ac97, int reg, unsigned int rate);
int snd_ac97_pcm_assign(ac97_bus_t *ac97,
unsigned short pcms_count,
const struct ac97_pcm *pcms);
int snd_ac97_pcm_open(struct ac97_pcm *pcm, unsigned int rate,
enum ac97_pcm_cfg cfg, unsigned short slots);
int snd_ac97_pcm_close(struct ac97_pcm *pcm);
int snd_ac97_pcm_double_rate_rules(snd_pcm_runtime_t *runtime);
struct ac97_enum {
unsigned char reg;
unsigned char shift_l;
unsigned char shift_r;
unsigned short mask;
const char **texts;
};
/* ad hoc AC97 device driver access */
extern struct bus_type ac97_bus_type;
#endif /* __SOUND_AC97_CODEC_H */
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