1 /**
2 
3     AudioScience HPI driver
4     Copyright (C) 1997-2011  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);
25 
26 struct hpi_adapter_obj {
27 	struct hpi_pci pci;	/* PCI info - bus#,dev#,address etc */
28 	u16 type;		/* 0x6644 == ASI6644 etc */
29 	u16 index;
30 
31 	struct hpios_spinlock dsp_lock;
32 
33 	u16 dsp_crashed;
34 	u16 has_control_cache;
35 	void *priv;
36 };
37 
38 struct hpi_control_cache {
39 	/** indicates whether the structures are initialized */
40 	u16 init;
41 	u16 adap_idx;
42 	u32 control_count;
43 	u32 cache_size_in_bytes;
44 	/** pointer to allocated memory of lookup pointers. */
45 	struct hpi_control_cache_info **p_info;
46 	/** pointer to DSP's control cache. */
47 	u8 *p_cache;
48 };
49 
50 struct hpi_adapter_obj *hpi_find_adapter(u16 adapter_index);
51 
52 u16 hpi_add_adapter(struct hpi_adapter_obj *pao);
53 
54 void hpi_delete_adapter(struct hpi_adapter_obj *pao);
55 
56 short hpi_check_control_cache(struct hpi_control_cache *pC,
57 	struct hpi_message *phm, struct hpi_response *phr);
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 void hpi_free_control_cache(struct hpi_control_cache *p_cache);
61 
62 void hpi_cmn_control_cache_sync_to_msg(struct hpi_control_cache *pC,
63 	struct hpi_message *phm, struct hpi_response *phr);
64 
65 u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr);
66 
67 hpi_handler_func HPI_COMMON;
68