xref: /openbmc/linux/include/sound/sof.h (revision e9b7b8b3)
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  * Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
9  */
10 
11 #ifndef __INCLUDE_SOUND_SOF_H
12 #define __INCLUDE_SOUND_SOF_H
13 
14 #include <linux/pci.h>
15 #include <sound/soc.h>
16 #include <sound/soc-acpi.h>
17 
18 struct snd_sof_dsp_ops;
19 struct snd_sof_dev;
20 
21 /**
22  * enum sof_fw_state - DSP firmware state definitions
23  * @SOF_FW_BOOT_NOT_STARTED:	firmware boot is not yet started
24  * @SOF_DSPLESS_MODE:		DSP is not used
25  * @SOF_FW_BOOT_PREPARE:	preparing for boot (firmware loading for exaqmple)
26  * @SOF_FW_BOOT_IN_PROGRESS:	firmware boot is in progress
27  * @SOF_FW_BOOT_FAILED:		firmware boot failed
28  * @SOF_FW_BOOT_READY_FAILED:	firmware booted but fw_ready op failed
29  * @SOF_FW_BOOT_READY_OK:	firmware booted and fw_ready op passed
30  * @SOF_FW_BOOT_COMPLETE:	firmware is booted up and functional
31  * @SOF_FW_CRASHED:		firmware crashed after successful boot
32  */
33 enum sof_fw_state {
34 	SOF_FW_BOOT_NOT_STARTED = 0,
35 	SOF_DSPLESS_MODE,
36 	SOF_FW_BOOT_PREPARE,
37 	SOF_FW_BOOT_IN_PROGRESS,
38 	SOF_FW_BOOT_FAILED,
39 	SOF_FW_BOOT_READY_FAILED,
40 	SOF_FW_BOOT_READY_OK,
41 	SOF_FW_BOOT_COMPLETE,
42 	SOF_FW_CRASHED,
43 };
44 
45 /* DSP power states */
46 enum sof_dsp_power_states {
47 	SOF_DSP_PM_D0,
48 	SOF_DSP_PM_D1,
49 	SOF_DSP_PM_D2,
50 	SOF_DSP_PM_D3,
51 };
52 
53 /* Definitions for multiple IPCs */
54 enum sof_ipc_type {
55 	SOF_IPC,
56 	SOF_INTEL_IPC4,
57 	SOF_IPC_TYPE_COUNT
58 };
59 
60 /*
61  * SOF Platform data.
62  */
63 struct snd_sof_pdata {
64 	const char *name;
65 	const char *platform;
66 
67 	/*
68 	 * PCI SSID. As PCI does not define 0 as invalid, the subsystem_id_set
69 	 * flag indicates that a value has been written to these members.
70 	 */
71 	unsigned short subsystem_vendor;
72 	unsigned short subsystem_device;
73 	bool subsystem_id_set;
74 
75 	struct device *dev;
76 
77 	/*
78 	 * notification callback used if the hardware initialization
79 	 * can take time or is handled in a workqueue. This callback
80 	 * can be used by the caller to e.g. enable runtime_pm
81 	 * or limit functionality until all low-level inits are
82 	 * complete.
83 	 */
84 	void (*sof_probe_complete)(struct device *dev);
85 
86 	/* descriptor */
87 	const struct sof_dev_desc *desc;
88 
89 	/* firmware and topology filenames */
90 	const char *fw_filename_prefix;
91 	const char *fw_filename;
92 	const char *tplg_filename_prefix;
93 	const char *tplg_filename;
94 
95 	/* loadable external libraries available under this directory */
96 	const char *fw_lib_prefix;
97 
98 	/* machine */
99 	struct platform_device *pdev_mach;
100 	const struct snd_soc_acpi_mach *machine;
101 	const struct snd_sof_of_mach *of_machine;
102 
103 	void *hw_pdata;
104 
105 	enum sof_ipc_type ipc_type;
106 };
107 
108 /*
109  * Descriptor used for setting up SOF platform data. This is used when
110  * ACPI/PCI data is missing or mapped differently.
111  */
112 struct sof_dev_desc {
113 	/* list of machines using this configuration */
114 	struct snd_soc_acpi_mach *machines;
115 	struct snd_sof_of_mach *of_machines;
116 
117 	/* alternate list of machines using this configuration */
118 	struct snd_soc_acpi_mach *alt_machines;
119 
120 	bool use_acpi_target_states;
121 
122 	/* Platform resource indexes in BAR / ACPI resources. */
123 	/* Must set to -1 if not used - add new items to end */
124 	int resindex_lpe_base;
125 	int resindex_pcicfg_base;
126 	int resindex_imr_base;
127 	int irqindex_host_ipc;
128 
129 	/* IPC timeouts in ms */
130 	int ipc_timeout;
131 	int boot_timeout;
132 
133 	/* chip information for dsp */
134 	const void *chip_info;
135 
136 	/* defaults for no codec mode */
137 	const char *nocodec_tplg_filename;
138 
139 	/* information on supported IPCs */
140 	unsigned int ipc_supported_mask;
141 	enum sof_ipc_type ipc_default;
142 
143 	/* The platform supports DSPless mode */
144 	bool dspless_mode_supported;
145 
146 	/* defaults paths for firmware, library and topology files */
147 	const char *default_fw_path[SOF_IPC_TYPE_COUNT];
148 	const char *default_lib_path[SOF_IPC_TYPE_COUNT];
149 	const char *default_tplg_path[SOF_IPC_TYPE_COUNT];
150 
151 	/* default firmware name */
152 	const char *default_fw_filename[SOF_IPC_TYPE_COUNT];
153 
154 	struct snd_sof_dsp_ops *ops;
155 	int (*ops_init)(struct snd_sof_dev *sdev);
156 	void (*ops_free)(struct snd_sof_dev *sdev);
157 };
158 
159 int sof_dai_get_mclk(struct snd_soc_pcm_runtime *rtd);
160 int sof_dai_get_bclk(struct snd_soc_pcm_runtime *rtd);
161 
162 #endif
163