xref: /openbmc/linux/include/sound/sof/dai-intel.h (revision a44e4f3a)
1 /* SPDX-License-Identifier: (GPL-2.0 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_INTEL_H__
10 #define __INCLUDE_SOUND_SOF_DAI_INTEL_H__
11 
12 #include <sound/sof/header.h>
13 
14  /* ssc1: TINTE */
15 #define SOF_DAI_INTEL_SSP_QUIRK_TINTE		(1 << 0)
16  /* ssc1: PINTE */
17 #define SOF_DAI_INTEL_SSP_QUIRK_PINTE		(1 << 1)
18  /* ssc2: SMTATF */
19 #define SOF_DAI_INTEL_SSP_QUIRK_SMTATF		(1 << 2)
20  /* ssc2: MMRATF */
21 #define SOF_DAI_INTEL_SSP_QUIRK_MMRATF		(1 << 3)
22  /* ssc2: PSPSTWFDFD */
23 #define SOF_DAI_INTEL_SSP_QUIRK_PSPSTWFDFD	(1 << 4)
24  /* ssc2: PSPSRWFDFD */
25 #define SOF_DAI_INTEL_SSP_QUIRK_PSPSRWFDFD	(1 << 5)
26 /* ssc1: LBM */
27 #define SOF_DAI_INTEL_SSP_QUIRK_LBM		(1 << 6)
28 
29  /* here is the possibility to define others aux macros */
30 
31 #define SOF_DAI_INTEL_SSP_FRAME_PULSE_WIDTH_MAX		38
32 #define SOF_DAI_INTEL_SSP_SLOT_PADDING_MAX		31
33 
34 /* SSP clocks control settings
35  *
36  * Macros for clks_control field in sof_ipc_dai_ssp_params struct.
37  */
38 
39 /* mclk 0 disable */
40 #define SOF_DAI_INTEL_SSP_MCLK_0_DISABLE		BIT(0)
41 /* mclk 1 disable */
42 #define SOF_DAI_INTEL_SSP_MCLK_1_DISABLE		BIT(1)
43 /* mclk keep active */
44 #define SOF_DAI_INTEL_SSP_CLKCTRL_MCLK_KA		BIT(2)
45 /* bclk keep active */
46 #define SOF_DAI_INTEL_SSP_CLKCTRL_BCLK_KA		BIT(3)
47 /* fs keep active */
48 #define SOF_DAI_INTEL_SSP_CLKCTRL_FS_KA			BIT(4)
49 /* bclk idle */
50 #define SOF_DAI_INTEL_SSP_CLKCTRL_BCLK_IDLE_HIGH	BIT(5)
51 
52 /* SSP Configuration Request - SOF_IPC_DAI_SSP_CONFIG */
53 struct sof_ipc_dai_ssp_params {
54 	struct sof_ipc_hdr hdr;
55 	uint16_t reserved1;
56 	uint16_t mclk_id;
57 
58 	uint32_t mclk_rate;	/* mclk frequency in Hz */
59 	uint32_t fsync_rate;	/* fsync frequency in Hz */
60 	uint32_t bclk_rate;	/* bclk frequency in Hz */
61 
62 	/* TDM */
63 	uint32_t tdm_slots;
64 	uint32_t rx_slots;
65 	uint32_t tx_slots;
66 
67 	/* data */
68 	uint32_t sample_valid_bits;
69 	uint16_t tdm_slot_width;
70 	uint16_t reserved2;	/* alignment */
71 
72 	/* MCLK */
73 	uint32_t mclk_direction;
74 
75 	uint16_t frame_pulse_width;
76 	uint16_t tdm_per_slot_padding_flag;
77 	uint32_t clks_control;
78 	uint32_t quirks;
79 	uint32_t bclk_delay;	/* guaranteed time (ms) for which BCLK
80 				 * will be driven, before sending data
81 				 */
82 } __packed;
83 
84 /* HDA Configuration Request - SOF_IPC_DAI_HDA_CONFIG */
85 struct sof_ipc_dai_hda_params {
86 	struct sof_ipc_hdr hdr;
87 	uint32_t link_dma_ch;
88 } __packed;
89 
90 /* DMIC Configuration Request - SOF_IPC_DAI_DMIC_CONFIG */
91 
92 /* This struct is defined per 2ch PDM controller available in the platform.
93  * Normally it is sufficient to set the used microphone specific enables to 1
94  * and keep other parameters as zero. The customizations are:
95  *
96  * 1. If a device mixes different microphones types with different polarity
97  * and/or the absolute polarity matters the PCM signal from a microphone
98  * can be inverted with the controls.
99  *
100  * 2. If the microphones in a stereo pair do not appear in captured stream
101  * in desired order due to board schematics choises they can be swapped with
102  * the clk_edge parameter.
103  *
104  * 3. If PDM bit errors are seen in capture (poor quality) the skew parameter
105  * that delays the sampling time of data by half cycles of DMIC source clock
106  * can be tried for improvement. However there is no guarantee for this to fix
107  * data integrity problems.
108  */
109 struct sof_ipc_dai_dmic_pdm_ctrl {
110 	struct sof_ipc_hdr hdr;
111 	uint16_t id;		/**< PDM controller ID */
112 
113 	uint16_t enable_mic_a;	/**< Use A (left) channel mic (0 or 1)*/
114 	uint16_t enable_mic_b;	/**< Use B (right) channel mic (0 or 1)*/
115 
116 	uint16_t polarity_mic_a; /**< Optionally invert mic A signal (0 or 1) */
117 	uint16_t polarity_mic_b; /**< Optionally invert mic B signal (0 or 1) */
118 
119 	uint16_t clk_edge;	/**< Optionally swap data clock edge (0 or 1) */
120 	uint16_t skew;		/**< Adjust PDM data sampling vs. clock (0..15) */
121 
122 	uint16_t reserved[3];	/**< Make sure the total size is 4 bytes aligned */
123 } __packed;
124 
125 /* This struct contains the global settings for all 2ch PDM controllers. The
126  * version number used in configuration data is checked vs. version used by
127  * device driver src/drivers/dmic.c need to match. It is incremented from
128  * initial value 1 if updates done for the to driver would alter the operation
129  * of the microhone.
130  *
131  * Note: The microphone clock (pdmclk_min, pdmclk_max, duty_min, duty_max)
132  * parameters need to be set as defined in microphone data sheet. E.g. clock
133  * range 1.0 - 3.2 MHz is usually supported microphones. Some microphones are
134  * multi-mode capable and there may be denied mic clock frequencies between
135  * the modes. In such case set the clock range limits of the desired mode to
136  * avoid the driver to set clock to an illegal rate.
137  *
138  * The duty cycle could be set to 48-52% if not known. Generally these
139  * parameters can be altered within data sheet specified limits to match
140  * required audio application performance power.
141  *
142  * The microphone clock needs to be usually about 50-80 times the used audio
143  * sample rate. With highest sample rates above 48 kHz this can relaxed
144  * somewhat.
145  *
146  * The parameter wake_up_time describes how long time the microphone needs
147  * for the data line to produce valid output from mic clock start. The driver
148  * will mute the captured audio for the given time. The min_clock_on_time
149  * parameter is used to prevent too short clock bursts to happen. The driver
150  * will keep the clock active after capture stop if this time is not yet
151  * met. The unit for both is microseconds (us). Exceed of 100 ms will be
152  * treated as an error.
153  */
154 struct sof_ipc_dai_dmic_params {
155 	struct sof_ipc_hdr hdr;
156 	uint32_t driver_ipc_version;	/**< Version (1..N) */
157 
158 	uint32_t pdmclk_min;	/**< Minimum microphone clock in Hz (100000..N) */
159 	uint32_t pdmclk_max;	/**< Maximum microphone clock in Hz (min...N) */
160 
161 	uint32_t fifo_fs;	/**< FIFO sample rate in Hz (8000..96000) */
162 	uint32_t reserved_1;	/**< Reserved */
163 	uint16_t fifo_bits;	/**< FIFO word length (16 or 32) */
164 	uint16_t reserved_2;	/**< Reserved */
165 
166 	uint16_t duty_min;	/**< Min. mic clock duty cycle in % (20..80) */
167 	uint16_t duty_max;	/**< Max. mic clock duty cycle in % (min..80) */
168 
169 	uint32_t num_pdm_active; /**< Number of active pdm controllers */
170 
171 	uint32_t wake_up_time;      /**< Time from clock start to data (us) */
172 	uint32_t min_clock_on_time; /**< Min. time that clk is kept on (us) */
173 	uint32_t unmute_ramp_time;  /**< Length of logarithmic gain ramp (ms) */
174 
175 	/* reserved for future use */
176 	uint32_t reserved[5];
177 
178 	/**< variable number of pdm controller config */
179 	struct sof_ipc_dai_dmic_pdm_ctrl pdm[0];
180 } __packed;
181 
182 /* ALH Configuration Request - SOF_IPC_DAI_ALH_CONFIG */
183 struct sof_ipc_dai_alh_params {
184 	struct sof_ipc_hdr hdr;
185 	uint32_t stream_id;
186 
187 	/* reserved for future use */
188 	uint32_t reserved[15];
189 } __packed;
190 
191 #endif
192