1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3
4 AudioScience HPI driver
5 Copyright (C) 1997-2014 AudioScience Inc. <support@audioscience.com>
6
7
8 */
9
10 struct hpi_adapter_obj;
11
12 /* a function that takes an adapter obj and returns an int */
13 typedef int adapter_int_func(struct hpi_adapter_obj *pao, u32 message);
14
15 #define HPI_IRQ_NONE (0)
16 #define HPI_IRQ_MESSAGE (1)
17 #define HPI_IRQ_MIXER (2)
18
19 struct hpi_adapter_obj {
20 struct hpi_pci pci; /* PCI info - bus#,dev#,address etc */
21 u16 type; /* 0x6644 == ASI6644 etc */
22 u16 index;
23
24 struct hpios_spinlock dsp_lock;
25
26 u16 dsp_crashed;
27 u16 has_control_cache;
28 void *priv;
29 adapter_int_func *irq_query_and_clear;
30 struct hpi_hostbuffer_status *instream_host_buffer_status;
31 struct hpi_hostbuffer_status *outstream_host_buffer_status;
32 };
33
34 struct hpi_control_cache {
35 /** indicates whether the structures are initialized */
36 u16 init;
37 u16 adap_idx;
38 u32 control_count;
39 u32 cache_size_in_bytes;
40 /** pointer to allocated memory of lookup pointers. */
41 struct hpi_control_cache_info **p_info;
42 /** pointer to DSP's control cache. */
43 u8 *p_cache;
44 };
45
46 struct hpi_adapter_obj *hpi_find_adapter(u16 adapter_index);
47
48 u16 hpi_add_adapter(struct hpi_adapter_obj *pao);
49
50 void hpi_delete_adapter(struct hpi_adapter_obj *pao);
51
52 short hpi_check_control_cache(struct hpi_control_cache *pC,
53 struct hpi_message *phm, struct hpi_response *phr);
54
55 short hpi_check_control_cache_single(struct hpi_control_cache_single *pC,
56 struct hpi_message *phm, struct hpi_response *phr);
57
58 struct hpi_control_cache *hpi_alloc_control_cache(const u32
59 number_of_controls, const u32 size_in_bytes, u8 *pDSP_control_buffer);
60
61 void hpi_free_control_cache(struct hpi_control_cache *p_cache);
62
63 void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *pC,
64 struct hpi_message *phm, struct hpi_response *phr);
65
66 void hpi_cmn_control_cache_sync_to_msg_single(struct hpi_control_cache_single
67 *pC, struct hpi_message *phm, struct hpi_response *phr);
68
69 u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr);
70
71 hpi_handler_func HPI_COMMON;
72
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