[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/include/sound/ac97/codec.h b/src/kernel/linux/v4.19/include/sound/ac97/codec.h
new file mode 100644
index 0000000..9792d25
--- /dev/null
+++ b/src/kernel/linux/v4.19/include/sound/ac97/codec.h
@@ -0,0 +1,116 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ */
+
+#ifndef __SOUND_AC97_CODEC2_H
+#define __SOUND_AC97_CODEC2_H
+
+#include <linux/device.h>
+
+#define AC97_ID(vendor_id1, vendor_id2) \
+ ((((vendor_id1) & 0xffff) << 16) | ((vendor_id2) & 0xffff))
+#define AC97_DRIVER_ID(vendor_id1, vendor_id2, mask_id1, mask_id2, _data) \
+ { .id = (((vendor_id1) & 0xffff) << 16) | ((vendor_id2) & 0xffff), \
+ .mask = (((mask_id1) & 0xffff) << 16) | ((mask_id2) & 0xffff), \
+ .data = (_data) }
+
+struct ac97_controller;
+struct clk;
+
+/**
+ * struct ac97_id - matches a codec device and driver on an ac97 bus
+ * @id: The significant bits if the codec vendor ID1 and ID2
+ * @mask: Bitmask specifying which bits of the id field are significant when
+ * matching. A driver binds to a device when :
+ * ((vendorID1 << 8 | vendorID2) & (mask_id1 << 8 | mask_id2)) == id.
+ * @data: Private data used by the driver.
+ */
+struct ac97_id {
+ unsigned int id;
+ unsigned int mask;
+ void *data;
+};
+
+/**
+ * ac97_codec_device - a ac97 codec
+ * @dev: the core device
+ * @vendor_id: the vendor_id of the codec, as sensed on the AC-link
+ * @num: the codec number, 0 is primary, 1 is first slave, etc ...
+ * @clk: the clock BIT_CLK provided by the codec
+ * @ac97_ctrl: ac97 digital controller on the same AC-link
+ *
+ * This is the device instantiated for each codec living on a AC-link. There are
+ * normally 0 to 4 codec devices per AC-link, and all of them are controlled by
+ * an AC97 digital controller.
+ */
+struct ac97_codec_device {
+ struct device dev;
+ unsigned int vendor_id;
+ unsigned int num;
+ struct clk *clk;
+ struct ac97_controller *ac97_ctrl;
+};
+
+/**
+ * ac97_codec_driver - a ac97 codec driver
+ * @driver: the device driver structure
+ * @probe: the function called when a ac97_codec_device is matched
+ * @remove: the function called when the device is unbound/removed
+ * @shutdown: shutdown function (might be NULL)
+ * @id_table: ac97 vendor_id match table, { } member terminated
+ */
+struct ac97_codec_driver {
+ struct device_driver driver;
+ int (*probe)(struct ac97_codec_device *);
+ int (*remove)(struct ac97_codec_device *);
+ void (*shutdown)(struct ac97_codec_device *);
+ const struct ac97_id *id_table;
+};
+
+static inline struct ac97_codec_device *to_ac97_device(struct device *d)
+{
+ return container_of(d, struct ac97_codec_device, dev);
+}
+
+static inline struct ac97_codec_driver *to_ac97_driver(struct device_driver *d)
+{
+ return container_of(d, struct ac97_codec_driver, driver);
+}
+
+#if IS_ENABLED(CONFIG_AC97_BUS_NEW)
+int snd_ac97_codec_driver_register(struct ac97_codec_driver *drv);
+void snd_ac97_codec_driver_unregister(struct ac97_codec_driver *drv);
+#else
+static inline int
+snd_ac97_codec_driver_register(struct ac97_codec_driver *drv)
+{
+ return 0;
+}
+static inline void
+snd_ac97_codec_driver_unregister(struct ac97_codec_driver *drv)
+{
+}
+#endif
+
+
+static inline struct device *
+ac97_codec_dev2dev(struct ac97_codec_device *adev)
+{
+ return &adev->dev;
+}
+
+static inline void *ac97_get_drvdata(struct ac97_codec_device *adev)
+{
+ return dev_get_drvdata(ac97_codec_dev2dev(adev));
+}
+
+static inline void ac97_set_drvdata(struct ac97_codec_device *adev,
+ void *data)
+{
+ dev_set_drvdata(ac97_codec_dev2dev(adev), data);
+}
+
+void *snd_ac97_codec_get_platdata(const struct ac97_codec_device *adev);
+
+#endif
diff --git a/src/kernel/linux/v4.19/include/sound/ac97/compat.h b/src/kernel/linux/v4.19/include/sound/ac97/compat.h
new file mode 100644
index 0000000..57e19af
--- /dev/null
+++ b/src/kernel/linux/v4.19/include/sound/ac97/compat.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ *
+ * This file is for backward compatibility with snd_ac97 structure and its
+ * multiple usages, such as the snd_ac97_bus and snd_ac97_build_ops.
+ */
+
+#ifndef AC97_COMPAT_H
+#define AC97_COMPAT_H
+
+#include <sound/ac97_codec.h>
+
+struct snd_ac97 *snd_ac97_compat_alloc(struct ac97_codec_device *adev);
+void snd_ac97_compat_release(struct snd_ac97 *ac97);
+
+#endif
diff --git a/src/kernel/linux/v4.19/include/sound/ac97/controller.h b/src/kernel/linux/v4.19/include/sound/ac97/controller.h
new file mode 100644
index 0000000..06b5afb
--- /dev/null
+++ b/src/kernel/linux/v4.19/include/sound/ac97/controller.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
+ */
+
+#ifndef AC97_CONTROLLER_H
+#define AC97_CONTROLLER_H
+
+#include <linux/device.h>
+#include <linux/list.h>
+
+#define AC97_BUS_MAX_CODECS 4
+#define AC97_SLOTS_AVAILABLE_ALL 0xf
+
+struct ac97_controller_ops;
+
+/**
+ * struct ac97_controller - The AC97 controller of the AC-Link
+ * @ops: the AC97 operations.
+ * @controllers: linked list of all existing controllers.
+ * @adap: the shell device ac97-%d, ie. ac97 adapter
+ * @nr: the number of the shell device
+ * @slots_available: the mask of accessible/scanable codecs.
+ * @parent: the device providing the AC97 controller.
+ * @codecs: the 4 possible AC97 codecs (NULL if none found).
+ * @codecs_pdata: platform_data for each codec (NULL if no pdata).
+ *
+ * This structure is internal to AC97 bus, and should not be used by the
+ * controllers themselves, excepting for using @dev.
+ */
+struct ac97_controller {
+ const struct ac97_controller_ops *ops;
+ struct list_head controllers;
+ struct device adap;
+ int nr;
+ unsigned short slots_available;
+ struct device *parent;
+ struct ac97_codec_device *codecs[AC97_BUS_MAX_CODECS];
+ void *codecs_pdata[AC97_BUS_MAX_CODECS];
+};
+
+/**
+ * struct ac97_controller_ops - The AC97 operations
+ * @reset: Cold reset of the AC97 AC-Link.
+ * @warm_reset: Warm reset of the AC97 AC-Link.
+ * @read: Read of a single AC97 register.
+ * Returns the register value or a negative error code.
+ * @write: Write of a single AC97 register.
+ *
+ * These are the basic operation an AC97 controller must provide for an AC97
+ * access functions. Amongst these, all but the last 2 are mandatory.
+ * The slot number is also known as the AC97 codec number, between 0 and 3.
+ */
+struct ac97_controller_ops {
+ void (*reset)(struct ac97_controller *adrv);
+ void (*warm_reset)(struct ac97_controller *adrv);
+ int (*write)(struct ac97_controller *adrv, int slot,
+ unsigned short reg, unsigned short val);
+ int (*read)(struct ac97_controller *adrv, int slot, unsigned short reg);
+};
+
+#if IS_ENABLED(CONFIG_AC97_BUS_NEW)
+struct ac97_controller *snd_ac97_controller_register(
+ const struct ac97_controller_ops *ops, struct device *dev,
+ unsigned short slots_available, void **codecs_pdata);
+void snd_ac97_controller_unregister(struct ac97_controller *ac97_ctrl);
+#else
+static inline struct ac97_controller *
+snd_ac97_controller_register(const struct ac97_controller_ops *ops,
+ struct device *dev,
+ unsigned short slots_available,
+ void **codecs_pdata)
+{
+ return ERR_PTR(-ENODEV);
+}
+
+static inline void
+snd_ac97_controller_unregister(struct ac97_controller *ac97_ctrl)
+{
+}
+#endif
+
+#endif
diff --git a/src/kernel/linux/v4.19/include/sound/ac97/regs.h b/src/kernel/linux/v4.19/include/sound/ac97/regs.h
new file mode 100644
index 0000000..843f73f
--- /dev/null
+++ b/src/kernel/linux/v4.19/include/sound/ac97/regs.h
@@ -0,0 +1,246 @@
+/* SPDX-License-Identifier: GPL-2.0+
+ *
+ * Copyright (c) by Jaroslav Kysela <perex@perex.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).
+ */
+/*
+ * 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 (optional) */
+#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 */
+
+/* volume controls */
+#define AC97_MUTE_MASK_MONO 0x8000
+#define AC97_MUTE_MASK_STEREO 0x8080
+
+/* 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
+#define AC97_BC_3D_TECH_ID_MASK 0x7c00 /* Per-vendor ID of 3D enhancement */
+
+/* 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 */
+
+/* powerdown bits */
+#define AC97_PD_ADC_STATUS 0x0001 /* ADC status (RO) */
+#define AC97_PD_DAC_STATUS 0x0002 /* DAC status (RO) */
+#define AC97_PD_MIXER_STATUS 0x0004 /* Analog mixer status (RO) */
+#define AC97_PD_VREF_STATUS 0x0008 /* Vref status (RO) */
+#define AC97_PD_PR0 0x0100 /* Power down PCM ADCs and input MUX */
+#define AC97_PD_PR1 0x0200 /* Power down PCM front DAC */
+#define AC97_PD_PR2 0x0400 /* Power down Mixer (Vref still on) */
+#define AC97_PD_PR3 0x0800 /* Power down Mixer (Vref off) */
+#define AC97_PD_PR4 0x1000 /* Power down AC-Link */
+#define AC97_PD_PR5 0x2000 /* Disable internal clock usage */
+#define AC97_PD_PR6 0x4000 /* Headphone amplifier */
+#define AC97_PD_EAPD 0x8000 /* External Amplifer Power Down (EAPD) */
+
+/* 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) */
+