xref: /openbmc/linux/include/sound/sof/dai.h (revision fe7498ef)
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) 2018 Intel Corporation. All rights reserved.
7  */
8 
9 #ifndef __INCLUDE_SOUND_SOF_DAI_H__
10 #define __INCLUDE_SOUND_SOF_DAI_H__
11 
12 #include <sound/sof/header.h>
13 #include <sound/sof/dai-intel.h>
14 #include <sound/sof/dai-imx.h>
15 
16 /*
17  * DAI Configuration.
18  *
19  * Each different DAI type will have it's own structure and IPC cmd.
20  */
21 
22 #define SOF_DAI_FMT_I2S		1 /**< I2S mode */
23 #define SOF_DAI_FMT_RIGHT_J	2 /**< Right Justified mode */
24 #define SOF_DAI_FMT_LEFT_J	3 /**< Left Justified mode */
25 #define SOF_DAI_FMT_DSP_A	4 /**< L data MSB after FRM LRC */
26 #define SOF_DAI_FMT_DSP_B	5 /**< L data MSB during FRM LRC */
27 #define SOF_DAI_FMT_PDM		6 /**< Pulse density modulation */
28 
29 #define SOF_DAI_FMT_CONT	(1 << 4) /**< continuous clock */
30 #define SOF_DAI_FMT_GATED	(0 << 4) /**< clock is gated */
31 
32 #define SOF_DAI_FMT_NB_NF	(0 << 8) /**< normal bit clock + frame */
33 #define SOF_DAI_FMT_NB_IF	(2 << 8) /**< normal BCLK + inv FRM */
34 #define SOF_DAI_FMT_IB_NF	(3 << 8) /**< invert BCLK + nor FRM */
35 #define SOF_DAI_FMT_IB_IF	(4 << 8) /**< invert BCLK + FRM */
36 
37 #define SOF_DAI_FMT_CBP_CFP	(0 << 12) /**< codec bclk provider & frame provider */
38 #define SOF_DAI_FMT_CBC_CFP	(2 << 12) /**< codec bclk consumer & frame provider */
39 #define SOF_DAI_FMT_CBP_CFC	(3 << 12) /**< codec bclk provider & frame consumer */
40 #define SOF_DAI_FMT_CBC_CFC	(4 << 12) /**< codec bclk consumer & frame consumer */
41 
42 /* keep old definitions for backwards compatibility */
43 #define SOF_DAI_FMT_CBM_CFM	SOF_DAI_FMT_CBP_CFP
44 #define SOF_DAI_FMT_CBS_CFM	SOF_DAI_FMT_CBC_CFP
45 #define SOF_DAI_FMT_CBM_CFS	SOF_DAI_FMT_CBP_CFC
46 #define SOF_DAI_FMT_CBS_CFS	SOF_DAI_FMT_CBC_CFC
47 
48 #define SOF_DAI_FMT_FORMAT_MASK		0x000f
49 #define SOF_DAI_FMT_CLOCK_MASK		0x00f0
50 #define SOF_DAI_FMT_INV_MASK		0x0f00
51 #define SOF_DAI_FMT_CLOCK_PROVIDER_MASK	0xf000
52 
53 /* DAI_CONFIG flags */
54 #define SOF_DAI_CONFIG_FLAGS_MASK	0x3
55 #define SOF_DAI_CONFIG_FLAGS_NONE	(0 << 0) /**< DAI_CONFIG sent without stage information */
56 #define SOF_DAI_CONFIG_FLAGS_HW_PARAMS	(1 << 0) /**< DAI_CONFIG sent during hw_params stage */
57 #define SOF_DAI_CONFIG_FLAGS_HW_FREE	(2 << 0) /**< DAI_CONFIG sent during hw_free stage */
58 #define SOF_DAI_CONFIG_FLAGS_RFU	(3 << 0) /**< not used, reserved for future use */
59 
60 /** \brief Types of DAI */
61 enum sof_ipc_dai_type {
62 	SOF_DAI_INTEL_NONE = 0,		/**< None */
63 	SOF_DAI_INTEL_SSP,		/**< Intel SSP */
64 	SOF_DAI_INTEL_DMIC,		/**< Intel DMIC */
65 	SOF_DAI_INTEL_HDA,		/**< Intel HD/A */
66 	SOF_DAI_INTEL_ALH,		/**< Intel ALH  */
67 	SOF_DAI_IMX_SAI,		/**< i.MX SAI */
68 	SOF_DAI_IMX_ESAI,		/**< i.MX ESAI */
69 };
70 
71 /* general purpose DAI configuration */
72 struct sof_ipc_dai_config {
73 	struct sof_ipc_cmd_hdr hdr;
74 	uint32_t type;		/**< DAI type - enum sof_ipc_dai_type */
75 	uint32_t dai_index;	/**< index of this type dai */
76 
77 	/* physical protocol and clocking */
78 	uint16_t format;	/**< SOF_DAI_FMT_ */
79 	uint8_t group_id;	/**< group ID, 0 means no group (ABI 3.17) */
80 	uint8_t flags;		/**< SOF_DAI_CONFIG_FLAGS_ (ABI 3.19) */
81 
82 	/* reserved for future use */
83 	uint32_t reserved[8];
84 
85 	/* HW specific data */
86 	union {
87 		struct sof_ipc_dai_ssp_params ssp;
88 		struct sof_ipc_dai_dmic_params dmic;
89 		struct sof_ipc_dai_hda_params hda;
90 		struct sof_ipc_dai_alh_params alh;
91 		struct sof_ipc_dai_esai_params esai;
92 		struct sof_ipc_dai_sai_params sai;
93 	};
94 } __packed;
95 
96 #endif
97