1 /**
2
3 AudioScience HPI driver
4 Copyright (C) 1997-2014 AudioScience Inc. <support@audioscience.com>
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of version 2 of the GNU General Public License as
8 published by the Free Software Foundation;
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 */
20
21 struct hpi_adapter_obj;
22
23 /* a function that takes an adapter obj and returns an int */
24 typedef int adapter_int_func(struct hpi_adapter_obj *pao, u32 message);
25
26 #define HPI_IRQ_NONE (0)
27 #define HPI_IRQ_MESSAGE (1)
28 #define HPI_IRQ_MIXER (2)
29
30 struct hpi_adapter_obj {
31 struct hpi_pci pci; /* PCI info - bus#,dev#,address etc */
32 u16 type; /* 0x6644 == ASI6644 etc */
33 u16 index;
34
35 struct hpios_spinlock dsp_lock;
36
37 u16 dsp_crashed;
38 u16 has_control_cache;
39 void *priv;
40 adapter_int_func *irq_query_and_clear;
41 struct hpi_hostbuffer_status *instream_host_buffer_status;
42 struct hpi_hostbuffer_status *outstream_host_buffer_status;
43 };
44
45 struct hpi_control_cache {
46 /** indicates whether the structures are initialized */
47 u16 init;
48 u16 adap_idx;
49 u32 control_count;
50 u32 cache_size_in_bytes;
51 /** pointer to allocated memory of lookup pointers. */
52 struct hpi_control_cache_info **p_info;
53 /** pointer to DSP's control cache. */
54 u8 *p_cache;
55 };
56
57 struct hpi_adapter_obj *hpi_find_adapter(u16 adapter_index);
58
59 u16 hpi_add_adapter(struct hpi_adapter_obj *pao);
60
61 void hpi_delete_adapter(struct hpi_adapter_obj *pao);
62
63 short hpi_check_control_cache(struct hpi_control_cache *pC,
64 struct hpi_message *phm, struct hpi_response *phr);
65
66 short hpi_check_control_cache_single(struct hpi_control_cache_single *pC,
67 struct hpi_message *phm, struct hpi_response *phr);
68
69 struct hpi_control_cache *hpi_alloc_control_cache(const u32
70 number_of_controls, const u32 size_in_bytes, u8 *pDSP_control_buffer);
71
72 void hpi_free_control_cache(struct hpi_control_cache *p_cache);
73
74 void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *pC,
75 struct hpi_message *phm, struct hpi_response *phr);
76
77 void hpi_cmn_control_cache_sync_to_msg_single(struct hpi_control_cache_single
78 *pC, struct hpi_message *phm, struct hpi_response *phr);
79
80 u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr);
81
82 hpi_handler_func HPI_COMMON;
83
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