xref: /openbmc/linux/include/sound/sof.h (revision 55fd7e02)
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 
20 /*
21  * SOF Platform data.
22  */
23 struct snd_sof_pdata {
24 	const struct firmware *fw;
25 	const char *name;
26 	const char *platform;
27 
28 	struct device *dev;
29 
30 	/* indicate how many first bytes shouldn't be loaded into DSP memory. */
31 	size_t fw_offset;
32 
33 	/*
34 	 * notification callback used if the hardware initialization
35 	 * can take time or is handled in a workqueue. This callback
36 	 * can be used by the caller to e.g. enable runtime_pm
37 	 * or limit functionality until all low-level inits are
38 	 * complete.
39 	 */
40 	void (*sof_probe_complete)(struct device *dev);
41 
42 	/* descriptor */
43 	const struct sof_dev_desc *desc;
44 
45 	/* firmware and topology filenames */
46 	const char *fw_filename_prefix;
47 	const char *fw_filename;
48 	const char *tplg_filename_prefix;
49 	const char *tplg_filename;
50 
51 	/* machine */
52 	struct platform_device *pdev_mach;
53 	const struct snd_soc_acpi_mach *machine;
54 
55 	void *hw_pdata;
56 };
57 
58 /*
59  * Descriptor used for setting up SOF platform data. This is used when
60  * ACPI/PCI data is missing or mapped differently.
61  */
62 struct sof_dev_desc {
63 	/* list of machines using this configuration */
64 	struct snd_soc_acpi_mach *machines;
65 
66 	/* alternate list of machines using this configuration */
67 	struct snd_soc_acpi_mach *alt_machines;
68 
69 	/* Platform resource indexes in BAR / ACPI resources. */
70 	/* Must set to -1 if not used - add new items to end */
71 	int resindex_lpe_base;
72 	int resindex_pcicfg_base;
73 	int resindex_imr_base;
74 	int irqindex_host_ipc;
75 	int resindex_dma_base;
76 
77 	/* DMA only valid when resindex_dma_base != -1*/
78 	int dma_engine;
79 	int dma_size;
80 
81 	/* IPC timeouts in ms */
82 	int ipc_timeout;
83 	int boot_timeout;
84 
85 	/* chip information for dsp */
86 	const void *chip_info;
87 
88 	/* defaults for no codec mode */
89 	const char *nocodec_tplg_filename;
90 
91 	/* defaults paths for firmware and topology files */
92 	const char *default_fw_path;
93 	const char *default_tplg_path;
94 
95 	/* default firmware name */
96 	const char *default_fw_filename;
97 
98 	const struct snd_sof_dsp_ops *ops;
99 };
100 
101 int sof_nocodec_setup(struct device *dev,
102 		      const struct snd_sof_dsp_ops *ops);
103 #endif
104