sound/soc/sof/intel/hda-ipc.h

   1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
   2 /*
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * Copyright(c) 2019 Intel Corporation
   7  *
   8  * Author: Keyon Jie <yang.jie@linux.intel.com>
   9  */
  10
  11 #ifndef __SOF_INTEL_HDA_IPC_H
  12 #define __SOF_INTEL_HDA_IPC_H
  13
  14 /*
  15  * Primary register, mapped to
  16  * - DIPCTDR (HIPCIDR) in sideband IPC (cAVS 1.8+)
  17  * - DIPCT in cAVS 1.5 IPC
  18  *
  19  * Secondary register, mapped to:
  20  * - DIPCTDD (HIPCIDD) in sideband IPC (cAVS 1.8+)
  21  * - DIPCTE in cAVS 1.5 IPC
  22  */
  23
  24 /* Common bits in primary register */
  25
  26 /* Reserved for doorbell */
  27 #define HDA_IPC_RSVD_31         BIT(31)
  28 /* Target, 0 - normal message, 1 - compact message(cAVS compatible) */
  29 #define HDA_IPC_MSG_COMPACT     BIT(30)
  30 /* Direction, 0 - request, 1 - response */
  31 #define HDA_IPC_RSP             BIT(29)
  32
  33 #define HDA_IPC_TYPE_SHIFT      24
  34 #define HDA_IPC_TYPE_MASK       GENMASK(28, 24)
  35 #define HDA_IPC_TYPE(x)         ((x) << HDA_IPC_TYPE_SHIFT)
  36
  37 #define HDA_IPC_PM_GATE         HDA_IPC_TYPE(0x8U)
  38
  39 /* Command specific payload bits in secondary register */
  40
  41 /* Disable DMA tracing (0 - keep tracing, 1 - to disable DMA trace) */
  42 #define HDA_PM_NO_DMA_TRACE     BIT(4)
  43 /* Prevent clock gating (0 - cg allowed, 1 - DSP clock always on) */
  44 #define HDA_PM_PCG              BIT(3)
  45 /* Prevent power gating (0 - deep power state transitions allowed) */
  46 #define HDA_PM_PPG              BIT(2)
  47 /* Indicates whether streaming is active */
  48 #define HDA_PM_PG_STREAMING     BIT(1)
  49 #define HDA_PM_PG_RSVD          BIT(0)
  50
  51 irqreturn_t cnl_ipc_irq_thread(int irq, void *context);
  52 int cnl_ipc_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg);
  53 void cnl_ipc_dump(struct snd_sof_dev *sdev);
  54 void cnl_ipc4_dump(struct snd_sof_dev *sdev);
  55
  56 #endif