diff options
author | Grant Likely <grant.likely@secretlab.ca> | 2010-05-22 02:36:56 -0400 |
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committer | Grant Likely <grant.likely@secretlab.ca> | 2010-05-22 02:36:56 -0400 |
commit | cf9b59e9d3e008591d1f54830f570982bb307a0d (patch) | |
tree | 113478ce8fd8c832ba726ffdf59b82cb46356476 /sound/pci/asihpi/hpimsginit.c | |
parent | 44504b2bebf8b5823c59484e73096a7d6574471d (diff) | |
parent | f4b87dee923342505e1ddba8d34ce9de33e75050 (diff) |
Merge remote branch 'origin' into secretlab/next-devicetree
Merging in current state of Linus' tree to deal with merge conflicts and
build failures in vio.c after merge.
Conflicts:
drivers/i2c/busses/i2c-cpm.c
drivers/i2c/busses/i2c-mpc.c
drivers/net/gianfar.c
Also fixed up one line in arch/powerpc/kernel/vio.c to use the
correct node pointer.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'sound/pci/asihpi/hpimsginit.c')
-rw-r--r-- | sound/pci/asihpi/hpimsginit.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/sound/pci/asihpi/hpimsginit.c b/sound/pci/asihpi/hpimsginit.c new file mode 100644 index 000000000000..8e1d099ed7e4 --- /dev/null +++ b/sound/pci/asihpi/hpimsginit.c | |||
@@ -0,0 +1,130 @@ | |||
1 | /****************************************************************************** | ||
2 | |||
3 | AudioScience HPI driver | ||
4 | Copyright (C) 1997-2010 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 | Hardware Programming Interface (HPI) Utility functions. | ||
20 | |||
21 | (C) Copyright AudioScience Inc. 2007 | ||
22 | *******************************************************************************/ | ||
23 | |||
24 | #include "hpi_internal.h" | ||
25 | #include "hpimsginit.h" | ||
26 | |||
27 | /* The actual message size for each object type */ | ||
28 | static u16 msg_size[HPI_OBJ_MAXINDEX + 1] = HPI_MESSAGE_SIZE_BY_OBJECT; | ||
29 | /* The actual response size for each object type */ | ||
30 | static u16 res_size[HPI_OBJ_MAXINDEX + 1] = HPI_RESPONSE_SIZE_BY_OBJECT; | ||
31 | /* Flag to enable alternate message type for SSX2 bypass. */ | ||
32 | static u16 gwSSX2_bypass; | ||
33 | |||
34 | /** \internal | ||
35 | * Used by ASIO driver to disable SSX2 for a single process | ||
36 | * \param phSubSys Pointer to HPI subsystem handle. | ||
37 | * \param wBypass New bypass setting 0 = off, nonzero = on | ||
38 | * \return Previous bypass setting. | ||
39 | */ | ||
40 | u16 hpi_subsys_ssx2_bypass(const struct hpi_hsubsys *ph_subsys, u16 bypass) | ||
41 | { | ||
42 | u16 old_value = gwSSX2_bypass; | ||
43 | |||
44 | gwSSX2_bypass = bypass; | ||
45 | |||
46 | return old_value; | ||
47 | } | ||
48 | |||
49 | /** \internal | ||
50 | * initialize the HPI message structure | ||
51 | */ | ||
52 | static void hpi_init_message(struct hpi_message *phm, u16 object, | ||
53 | u16 function) | ||
54 | { | ||
55 | memset(phm, 0, sizeof(*phm)); | ||
56 | if ((object > 0) && (object <= HPI_OBJ_MAXINDEX)) | ||
57 | phm->size = msg_size[object]; | ||
58 | else | ||
59 | phm->size = sizeof(*phm); | ||
60 | |||
61 | if (gwSSX2_bypass) | ||
62 | phm->type = HPI_TYPE_SSX2BYPASS_MESSAGE; | ||
63 | else | ||
64 | phm->type = HPI_TYPE_MESSAGE; | ||
65 | phm->object = object; | ||
66 | phm->function = function; | ||
67 | phm->version = 0; | ||
68 | /* Expect adapter index to be set by caller */ | ||
69 | } | ||
70 | |||
71 | /** \internal | ||
72 | * initialize the HPI response structure | ||
73 | */ | ||
74 | void hpi_init_response(struct hpi_response *phr, u16 object, u16 function, | ||
75 | u16 error) | ||
76 | { | ||
77 | memset(phr, 0, sizeof(*phr)); | ||
78 | phr->type = HPI_TYPE_RESPONSE; | ||
79 | if ((object > 0) && (object <= HPI_OBJ_MAXINDEX)) | ||
80 | phr->size = res_size[object]; | ||
81 | else | ||
82 | phr->size = sizeof(*phr); | ||
83 | phr->object = object; | ||
84 | phr->function = function; | ||
85 | phr->error = error; | ||
86 | phr->specific_error = 0; | ||
87 | phr->version = 0; | ||
88 | } | ||
89 | |||
90 | void hpi_init_message_response(struct hpi_message *phm, | ||
91 | struct hpi_response *phr, u16 object, u16 function) | ||
92 | { | ||
93 | hpi_init_message(phm, object, function); | ||
94 | /* default error return if the response is | ||
95 | not filled in by the callee */ | ||
96 | hpi_init_response(phr, object, function, | ||
97 | HPI_ERROR_PROCESSING_MESSAGE); | ||
98 | } | ||
99 | |||
100 | static void hpi_init_messageV1(struct hpi_message_header *phm, u16 size, | ||
101 | u16 object, u16 function) | ||
102 | { | ||
103 | memset(phm, 0, sizeof(*phm)); | ||
104 | if ((object > 0) && (object <= HPI_OBJ_MAXINDEX)) { | ||
105 | phm->size = size; | ||
106 | phm->type = HPI_TYPE_MESSAGE; | ||
107 | phm->object = object; | ||
108 | phm->function = function; | ||
109 | phm->version = 1; | ||
110 | /* Expect adapter index to be set by caller */ | ||
111 | } | ||
112 | } | ||
113 | |||
114 | void hpi_init_responseV1(struct hpi_response_header *phr, u16 size, | ||
115 | u16 object, u16 function) | ||
116 | { | ||
117 | memset(phr, 0, sizeof(*phr)); | ||
118 | phr->size = size; | ||
119 | phr->version = 1; | ||
120 | phr->type = HPI_TYPE_RESPONSE; | ||
121 | phr->error = HPI_ERROR_PROCESSING_MESSAGE; | ||
122 | } | ||
123 | |||
124 | void hpi_init_message_responseV1(struct hpi_message_header *phm, u16 msg_size, | ||
125 | struct hpi_response_header *phr, u16 res_size, u16 object, | ||
126 | u16 function) | ||
127 | { | ||
128 | hpi_init_messageV1(phm, msg_size, object, function); | ||
129 | hpi_init_responseV1(phr, res_size, object, function); | ||
130 | } | ||