1 /* Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
2 *
3 * Redistribution and use in source and binary forms, with or without
4 * modification, are permitted provided that the following conditions are
5 * met:
6 * * Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 * * Redistributions in binary form must reproduce the above
9 * copyright notice, this list of conditions and the following
10 * disclaimer in the documentation and/or other materials provided
11 * with the distribution.
12 * * Neither the name of The Linux Foundation nor the names of its
13 * contributors may be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
23 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
25 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
26 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 */
29
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <sys/types.h>
34 #include <sys/stat.h>
35 #include <fcntl.h>
36 #include <errno.h>
37 #include <hardware/gps.h>
38 #include <cutils/properties.h>
39 #include "loc_target.h"
40 #include "loc_log.h"
41 #include "log_util.h"
42
43 #define APQ8064_ID_1 "109"
44 #define APQ8064_ID_2 "153"
45 #define MPQ8064_ID_1 "130"
46 #define MSM8930_ID_1 "142"
47 #define MSM8930_ID_2 "116"
48 #define APQ8030_ID_1 "157"
49 #define APQ8074_ID_1 "184"
50
51 #define LINE_LEN 100
52 #define STR_LIQUID "Liquid"
53 #define STR_SURF "Surf"
54 #define STR_MTP "MTP"
55 #define STR_APQ "apq"
56 #define STR_APQ_NO_WGR "baseband_apq_nowgr"
57 #define STR_AUTO "auto"
58 #define IS_STR_END(c) ((c) == '\0' || (c) == '\n' || (c) == '\r')
59 #define LENGTH(s) (sizeof(s) - 1)
60 #define GPS_CHECK_NO_ERROR 0
61 #define GPS_CHECK_NO_GPS_HW 1
62 /* When system server is started, it uses 20 seconds as ActivityManager
63 * timeout. After that it sends SIGSTOP signal to process.
64 */
65 #define QCA1530_DETECT_TIMEOUT 15
66 #define QCA1530_DETECT_PRESENT "yes"
67 #define QCA1530_DETECT_PROGRESS "detect"
68
69 static unsigned int gTarget = (unsigned int)-1;
70
read_a_line(const char * file_path,char * line,int line_size)71 static int read_a_line(const char * file_path, char * line, int line_size)
72 {
73 FILE *fp;
74 int result = 0;
75
76 * line = '\0';
77 fp = fopen(file_path, "r" );
78 if( fp == NULL ) {
79 LOC_LOGE("open failed: %s: %s\n", file_path, strerror(errno));
80 result = -1;
81 } else {
82 int len;
83 fgets(line, line_size, fp);
84 len = strlen(line);
85 len = len < line_size - 1? len : line_size - 1;
86 line[len] = '\0';
87 LOC_LOGD("cat %s: %s", file_path, line);
88 fclose(fp);
89 }
90 return result;
91 }
92
93 /*!
94 * \brief Checks if QCA1530 is avalable.
95 *
96 * Function verifies if qca1530 SoC is configured on the device. The test is
97 * based on property value. For 1530 scenario, the value shall be one of the
98 * following: "yes", "no", "detect". All other values are treated equally to
99 * "no". When the value is "detect" the system waits for SoC detection to
100 * finish before returning result.
101 *
102 * \retval true - QCA1530 is available.
103 * \retval false - QCA1530 is not available.
104 */
is_qca1530(void)105 static bool is_qca1530(void)
106 {
107 static const char qca1530_property_name[] = "sys.qca1530";
108 bool res = false;
109 int ret, i;
110 char buf[PROPERTY_VALUE_MAX];
111
112 memset(buf, 0, sizeof(buf));
113
114 for (i = 0; i < QCA1530_DETECT_TIMEOUT; ++i)
115 {
116 ret = property_get(qca1530_property_name, buf, NULL);
117 if (ret < 0)
118 {
119 LOC_LOGV( "qca1530: property %s is not accessible, ret=%d",
120 qca1530_property_name,
121 ret);
122
123 break;
124 }
125
126 LOC_LOGV( "qca1530: property %s is set to %s",
127 qca1530_property_name,
128 buf);
129
130 if (!memcmp(buf, QCA1530_DETECT_PRESENT,
131 sizeof(QCA1530_DETECT_PRESENT)))
132 {
133 res = true;
134 break;
135 }
136 if (!memcmp(buf, QCA1530_DETECT_PROGRESS,
137 sizeof(QCA1530_DETECT_PROGRESS)))
138 {
139 LOC_LOGV("qca1530: SoC detection is in progress.");
140 sleep(1);
141 continue;
142 }
143 break;
144 }
145
146 LOC_LOGD("qca1530: detected=%s", res ? "true" : "false");
147 return res;
148 }
149
150 /*The character array passed to this function should have length
151 of atleast PROPERTY_VALUE_MAX*/
loc_get_target_baseband(char * baseband,int array_length)152 void loc_get_target_baseband(char *baseband, int array_length)
153 {
154 if(baseband && (array_length >= PROPERTY_VALUE_MAX)) {
155 property_get("ro.baseband", baseband, "");
156 LOC_LOGD("%s:%d]: Baseband: %s\n", __func__, __LINE__, baseband);
157 }
158 else {
159 LOC_LOGE("%s:%d]: NULL parameter or array length less than PROPERTY_VALUE_MAX\n",
160 __func__, __LINE__);
161 }
162 }
163
164 /*The character array passed to this function should have length
165 of atleast PROPERTY_VALUE_MAX*/
loc_get_platform_name(char * platform_name,int array_length)166 void loc_get_platform_name(char *platform_name, int array_length)
167 {
168 if(platform_name && (array_length >= PROPERTY_VALUE_MAX)) {
169 property_get("ro.board.platform", platform_name, "");
170 LOC_LOGD("%s:%d]: Target name: %s\n", __func__, __LINE__, platform_name);
171 }
172 else {
173 LOC_LOGE("%s:%d]: Null parameter or array length less than PROPERTY_VALUE_MAX\n",
174 __func__, __LINE__);
175 }
176 }
177
loc_get_target(void)178 unsigned int loc_get_target(void)
179 {
180 if (gTarget != (unsigned int)-1)
181 return gTarget;
182
183 static const char hw_platform[] = "/sys/devices/soc0/hw_platform";
184 static const char id[] = "/sys/devices/soc0/soc_id";
185 static const char hw_platform_dep[] =
186 "/sys/devices/system/soc/soc0/hw_platform";
187 static const char id_dep[] = "/sys/devices/system/soc/soc0/id";
188 static const char mdm[] = "/dev/mdm"; // No such file or directory
189
190 char rd_hw_platform[LINE_LEN];
191 char rd_id[LINE_LEN];
192 char rd_mdm[LINE_LEN];
193 char baseband[LINE_LEN];
194
195 if (is_qca1530()) {
196 gTarget = TARGET_QCA1530;
197 goto detected;
198 }
199
200 loc_get_target_baseband(baseband, sizeof(baseband));
201
202 if (!access(hw_platform, F_OK)) {
203 read_a_line(hw_platform, rd_hw_platform, LINE_LEN);
204 } else {
205 read_a_line(hw_platform_dep, rd_hw_platform, LINE_LEN);
206 }
207 if (!access(id, F_OK)) {
208 read_a_line(id, rd_id, LINE_LEN);
209 } else {
210 read_a_line(id_dep, rd_id, LINE_LEN);
211 }
212 if( !memcmp(baseband, STR_AUTO, LENGTH(STR_AUTO)) )
213 {
214 gTarget = TARGET_AUTO;
215 goto detected;
216 }
217
218 if( !memcmp(baseband, STR_APQ_NO_WGR, LENGTH(STR_APQ_NO_WGR)) ){
219
220 gTarget = TARGET_NO_GNSS;
221 goto detected;
222 }
223
224 if( !memcmp(baseband, STR_APQ, LENGTH(STR_APQ)) ){
225
226 if( !memcmp(rd_id, MPQ8064_ID_1, LENGTH(MPQ8064_ID_1))
227 && IS_STR_END(rd_id[LENGTH(MPQ8064_ID_1)]) )
228 gTarget = TARGET_NO_GNSS;
229 else
230 gTarget = TARGET_APQ_SA;
231 }
232 else {
233 if( (!memcmp(rd_hw_platform, STR_LIQUID, LENGTH(STR_LIQUID))
234 && IS_STR_END(rd_hw_platform[LENGTH(STR_LIQUID)])) ||
235 (!memcmp(rd_hw_platform, STR_SURF, LENGTH(STR_SURF))
236 && IS_STR_END(rd_hw_platform[LENGTH(STR_SURF)])) ||
237 (!memcmp(rd_hw_platform, STR_MTP, LENGTH(STR_MTP))
238 && IS_STR_END(rd_hw_platform[LENGTH(STR_MTP)]))) {
239
240 if (!read_a_line( mdm, rd_mdm, LINE_LEN))
241 gTarget = TARGET_MDM;
242 }
243 else if( (!memcmp(rd_id, MSM8930_ID_1, LENGTH(MSM8930_ID_1))
244 && IS_STR_END(rd_id[LENGTH(MSM8930_ID_1)])) ||
245 (!memcmp(rd_id, MSM8930_ID_2, LENGTH(MSM8930_ID_2))
246 && IS_STR_END(rd_id[LENGTH(MSM8930_ID_2)])) )
247 gTarget = TARGET_MSM_NO_SSC;
248 else
249 gTarget = TARGET_UNKNOWN;
250 }
251
252 detected:
253 LOC_LOGD("HAL: %s returned %d", __FUNCTION__, gTarget);
254 return gTarget;
255 }
256
257 /*Reads the property ro.lean to identify if this is a lean target
258 Returns:
259 0 if not a lean and mean target
260 1 if this is a lean and mean target
261 */
loc_identify_lean_target()262 int loc_identify_lean_target()
263 {
264 int ret = 0;
265 char lean_target[PROPERTY_VALUE_MAX];
266 property_get("ro.lean", lean_target, "");
267 LOC_LOGD("%s:%d]: lean target: %s\n", __func__, __LINE__, lean_target);
268 return !(strncmp(lean_target, "true", PROPERTY_VALUE_MAX));
269 }
270