1 /******************************************************************************
2 @file: loc_eng.cpp
3 @brief:
4
5 DESCRIPTION
6 This file defines the implemenation for GPS hardware abstraction layer.
7
8 INITIALIZATION AND SEQUENCING REQUIREMENTS
9
10 -----------------------------------------------------------------------------
11 Copyright (c) 2009, QUALCOMM USA, INC.
12
13 All rights reserved.
14
15 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
16
17 � Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
18
19 � Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
20
21 � Neither the name of the QUALCOMM USA, INC. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
22
23 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 -----------------------------------------------------------------------------
25
26 ******************************************************************************/
27
28 /*=====================================================================
29 $Header: $
30 $DateTime: $
31 $Author: $
32 ======================================================================*/
33 #define LOG_NDDEBUG 0
34
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include <unistd.h>
38 #include <ctype.h>
39 #include <errno.h>
40 #include <math.h>
41 #include <pthread.h>
42
43 #include <rpc/rpc.h>
44 #include <loc_api_rpc_glue.h>
45
46 #include <loc_eng.h>
47
48 #define LOG_TAG "lib_locapi"
49 #include <utils/Log.h>
50
51 // comment this out to enable logging
52 // #undef LOGD
53 // #define LOGD(...) {}
54
55 #define LOC_XTRA_INJECT_DEFAULT_TIMEOUT (3100)
56 #define XTRA_BLOCK_SIZE (400)
57
58 static int qct_loc_eng_xtra_init (GpsXtraCallbacks* callbacks);
59 static int qct_loc_eng_inject_xtra_data(char* data, int length);
60
61 const GpsXtraInterface sLocEngXTRAInterface =
62 {
63 sizeof(GpsXtraInterface),
64 qct_loc_eng_xtra_init,
65 qct_loc_eng_inject_xtra_data,
66 };
67
68 /*===========================================================================
69 FUNCTION qct_loc_eng_xtra_init
70
71 DESCRIPTION
72 Initialize XTRA module.
73
74 DEPENDENCIES
75 N/A
76
77 RETURN VALUE
78 0: success
79
80 SIDE EFFECTS
81 N/A
82
83 ===========================================================================*/
qct_loc_eng_xtra_init(GpsXtraCallbacks * callbacks)84 static int qct_loc_eng_xtra_init (GpsXtraCallbacks* callbacks)
85 {
86 rpc_loc_event_mask_type event;
87 loc_eng_xtra_data_s_type *xtra_module_data_ptr;
88
89 xtra_module_data_ptr = &(loc_eng_data.xtra_module_data);
90 xtra_module_data_ptr->download_request_cb = callbacks->download_request_cb;
91
92 return 0;
93 }
94
95 /*===========================================================================
96 FUNCTION qct_loc_eng_inject_xtra_data
97
98 DESCRIPTION
99 Injects XTRA file into the engine.
100
101 DEPENDENCIES
102 N/A
103
104 RETURN VALUE
105 0: success
106 >0: failure
107
108 SIDE EFFECTS
109 N/A
110
111 ===========================================================================*/
qct_loc_eng_inject_xtra_data(char * data,int length)112 static int qct_loc_eng_inject_xtra_data(char* data, int length)
113 {
114 int rpc_ret_val = RPC_LOC_API_GENERAL_FAILURE;
115 boolean ret_val = 0;
116 int total_parts;
117 uint8 part;
118 uint16 part_len;
119 uint16 len_injected;
120 rpc_loc_ioctl_data_u_type ioctl_data;
121 rpc_loc_predicted_orbits_data_s_type *predicted_orbits_data_ptr;
122
123 LOGV ("qct_loc_eng_inject_xtra_data, xtra size = %d, data ptr = 0x%x\n", length, (int) data);
124
125 ioctl_data.disc = RPC_LOC_IOCTL_INJECT_PREDICTED_ORBITS_DATA;
126
127 predicted_orbits_data_ptr = &(ioctl_data.rpc_loc_ioctl_data_u_type_u.predicted_orbits_data);
128 predicted_orbits_data_ptr->format_type = RPC_LOC_PREDICTED_ORBITS_XTRA;
129 predicted_orbits_data_ptr->total_size = length;
130 total_parts = (length / XTRA_BLOCK_SIZE);
131 if ((total_parts % XTRA_BLOCK_SIZE) != 0)
132 {
133 total_parts += 1;
134 }
135 predicted_orbits_data_ptr->total_parts = total_parts;
136
137 len_injected = 0; // O bytes injected
138 // XTRA injection starts with part 1
139 for (part = 1; part <= total_parts; part++)
140 {
141 predicted_orbits_data_ptr->part = part;
142 predicted_orbits_data_ptr->part_len = XTRA_BLOCK_SIZE;
143 if (XTRA_BLOCK_SIZE > (length - len_injected))
144 {
145 predicted_orbits_data_ptr->part_len = length - len_injected;
146 }
147 predicted_orbits_data_ptr->data_ptr.data_ptr_len = predicted_orbits_data_ptr->part_len;
148 predicted_orbits_data_ptr->data_ptr.data_ptr_val = data + len_injected;
149
150 LOGV ("qct_loc_eng_inject_xtra_data, inject part = %d, len = %d, len = %d\n", predicted_orbits_data_ptr->part, predicted_orbits_data_ptr->part_len, predicted_orbits_data_ptr->data_ptr.data_ptr_len);
151 LOGV ("qct_loc_eng_inject_xtra_data, total part = %d, len = %d \n", predicted_orbits_data_ptr->part, predicted_orbits_data_ptr->part_len);
152
153 if (part < total_parts)
154 {
155 // No callback in this case
156 rpc_ret_val = loc_ioctl (loc_eng_data.client_handle,
157 RPC_LOC_IOCTL_INJECT_PREDICTED_ORBITS_DATA,
158 &ioctl_data);
159
160 if (rpc_ret_val != RPC_LOC_API_SUCCESS)
161 {
162 LOGE ("loc_ioctl for xtra returned %d \n", rpc_ret_val);
163 ret_val = EINVAL; // return error
164 break;
165 }
166 }
167 else // part == total_parts
168 {
169 // Last part injection, will need to wait for callback
170 ret_val = loc_eng_ioctl (loc_eng_data.client_handle,
171 RPC_LOC_IOCTL_INJECT_PREDICTED_ORBITS_DATA,
172 &ioctl_data,
173 LOC_XTRA_INJECT_DEFAULT_TIMEOUT,
174 NULL /* No output information is expected*/);
175 break; // done with injection
176 }
177
178 len_injected += predicted_orbits_data_ptr->part_len;
179 LOGV ("loc_ioctl for xtra len injected %d \n", len_injected);
180 }
181
182 return ret_val;
183 }
184