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ASoC: SOF: Intel: HDA: add cAVS specific compact IPC header file 

On cAVS platforms, some IPCs are required to be sent via IPC registers
only(e.g. when in D0i3, mailbox is unaccessible), add hda-ipc.h to hold
definition of those compact IPCs.

Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191025224122.7718-16-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Keyon Jie 2019-10-25 17:41:11 -05:00 committed by Mark Brown
parent 463fbf6dc0
commit 5056193d4d
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sound/soc/sof/intel/hda-ipc.h Normal file
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/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
/*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* Copyright(c) 2019 Intel Corporation. All rights reserved.
*
* Author: Keyon Jie <yang.jie@linux.intel.com>
*/
#ifndef __SOF_INTEL_HDA_IPC_H
#define __SOF_INTEL_HDA_IPC_H
/*
* Primary register, mapped to
* - DIPCTDR (HIPCIDR) in sideband IPC (cAVS 1.8+)
* - DIPCT in cAVS 1.5 IPC
*
* Secondary register, mapped to:
* - DIPCTDD (HIPCIDD) in sideband IPC (cAVS 1.8+)
* - DIPCTE in cAVS 1.5 IPC
*/
/* Common bits in primary register */
/* Reserved for doorbell */
#define HDA_IPC_RSVD_31 BIT(31)
/* Target, 0 - normal message, 1 - compact message(cAVS compatible) */
#define HDA_IPC_MSG_COMPACT BIT(30)
/* Direction, 0 - request, 1 - response */
#define HDA_IPC_RSP BIT(29)
#define HDA_IPC_TYPE_SHIFT 24
#define HDA_IPC_TYPE_MASK GENMASK(28, 24)
#define HDA_IPC_TYPE(x) ((x) << HDA_IPC_TYPE_SHIFT)
#define HDA_IPC_PM_GATE HDA_IPC_TYPE(0x8U)
/* Command specific payload bits in secondary register */
/* Disable DMA tracing (0 - keep tracing, 1 - to disable DMA trace) */
#define HDA_PM_NO_DMA_TRACE BIT(4)
/* Prevent clock gating (0 - cg allowed, 1 - DSP clock always on) */
#define HDA_PM_PCG BIT(3)
/* Prevent power gating (0 - deep power state transitions allowed) */
#define HDA_PM_PPG BIT(2)
/* Indicates whether streaming is active */
#define HDA_PM_PG_STREAMING BIT(1)
#define HDA_PM_PG_RSVD BIT(0)
#endif