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 <unistd.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <string.h>
34 #include <sys/types.h>
35 #include <sys/stat.h>
36 #include <fcntl.h>
37 #include <errno.h>
38 #include <log_util.h>
39 #include "loc_target.h"
40 #include "loc_log.h"
41 #include <loc_pla.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_SDC "sdc" // alternative string for APQ targets
57 #define STR_QCS "qcs" // string for Gen9 APQ targets
58 #define STR_MSM "msm"
59 #define STR_SDM "sdm" // alternative string for MSM targets
60 #define STR_APQ_NO_WGR "baseband_apq_nowgr"
61 #define STR_AUTO "auto"
62 #define IS_STR_END(c) ((c) == '\0' || (c) == '\n' || (c) == '\r')
63 #define LENGTH(s) (sizeof(s) - 1)
64 #define GPS_CHECK_NO_ERROR 0
65 #define GPS_CHECK_NO_GPS_HW 1
66
67 static unsigned int gTarget = (unsigned int)-1;
68
read_a_line(const char * file_path,char * line,int line_size)69 static int read_a_line(const char * file_path, char * line, int line_size)
70 {
71 FILE *fp;
72 int result = 0;
73
74 * line = '\0';
75 fp = fopen(file_path, "r" );
76 if( fp == NULL ) {
77 LOC_LOGE("open failed: %s: %s\n", file_path, strerror(errno));
78 result = -1;
79 } else {
80 int len;
81 fgets(line, line_size, fp);
82 len = strlen(line);
83 while ('\n' == line[len-1]) {
84 // If there is a new line at end of string, replace it with NULL
85 line[len-1] = '\0';
86 len--;
87 }
88 len = len < line_size - 1? len : line_size - 1;
89 line[len] = '\0';
90 LOC_LOGD("cat %s: %s", file_path, line);
91 fclose(fp);
92 }
93 return result;
94 }
95
96 /*The character array passed to this function should have length
97 of atleast PROPERTY_VALUE_MAX*/
loc_get_target_baseband(char * baseband,int array_length)98 void loc_get_target_baseband(char *baseband, int array_length)
99 {
100 if(baseband && (array_length >= PROPERTY_VALUE_MAX)) {
101 property_get("ro.baseband", baseband, "");
102 LOC_LOGD("%s:%d]: Baseband: %s\n", __func__, __LINE__, baseband);
103 }
104 else {
105 LOC_LOGE("%s:%d]: NULL parameter or array length less than PROPERTY_VALUE_MAX\n",
106 __func__, __LINE__);
107 }
108 }
109
110 /*The character array passed to this function should have length
111 of atleast PROPERTY_VALUE_MAX*/
loc_get_platform_name(char * platform_name,int array_length)112 void loc_get_platform_name(char *platform_name, int array_length)
113 {
114 if(platform_name && (array_length >= PROPERTY_VALUE_MAX)) {
115 property_get("ro.board.platform", platform_name, "");
116 LOC_LOGD("%s:%d]: Target name: %s\n", __func__, __LINE__, platform_name);
117 }
118 else {
119 LOC_LOGE("%s:%d]: Null parameter or array length less than PROPERTY_VALUE_MAX\n",
120 __func__, __LINE__);
121 }
122 }
123
124 /*The character array passed to this function should have length
125 of atleast PROPERTY_VALUE_MAX*/
loc_get_auto_platform_name(char * platform_name,int array_length)126 void loc_get_auto_platform_name(char *platform_name, int array_length)
127 {
128 if(platform_name && (array_length >= PROPERTY_VALUE_MAX)) {
129 property_get("ro.hardware.type", platform_name, "");
130 LOC_LOGD("%s:%d]: Autoplatform name: %s\n", __func__, __LINE__, platform_name);
131 }
132 else {
133 LOC_LOGE("%s:%d]: Null parameter or array length less than PROPERTY_VALUE_MAX\n",
134 __func__, __LINE__);
135 }
136 }
137
138 /*Reads the property ro.config.low_ram to identify if this is a low ram target
139 Returns:
140 0 if not a low ram target
141 1 if this is a low ram target
142 */
loc_identify_low_ram_target()143 int loc_identify_low_ram_target()
144 {
145 int ret = 0;
146 char low_ram_target[PROPERTY_VALUE_MAX];
147 property_get("ro.config.low_ram", low_ram_target, "");
148 LOC_LOGd("low ram target: %s\n", low_ram_target);
149 return !(strncmp(low_ram_target, "true", PROPERTY_VALUE_MAX));
150 }
151
152 /*The character array passed to this function should have length
153 of atleast PROPERTY_VALUE_MAX*/
154 /* Reads the soc_id node and return the soc_id value */
loc_get_device_soc_id(char * soc_id_value,int array_length)155 void loc_get_device_soc_id(char *soc_id_value, int array_length)
156 {
157 static const char soc_id[] = "/sys/devices/soc0/soc_id";
158 static const char soc_id_dep[] = "/sys/devices/system/soc/soc0/id";
159 int return_val = 0;
160
161 if (soc_id_value && (array_length >= PROPERTY_VALUE_MAX)) {
162 if (!access(soc_id, F_OK)) {
163 return_val = read_a_line(soc_id, soc_id_value, array_length);
164 } else {
165 return_val = read_a_line(soc_id_dep, soc_id_value, array_length);
166 }
167 if (0 == return_val) {
168 LOC_LOGd("SOC Id value: %s\n", soc_id_value);
169 } else {
170 LOC_LOGe("Unable to read the soc_id value\n");
171 }
172 } else {
173 LOC_LOGe("Null parameter or array length less than PROPERTY_VALUE_MAX\n");
174 }
175 }
176
loc_get_target(void)177 unsigned int loc_get_target(void)
178 {
179 if (gTarget != (unsigned int)-1)
180 return gTarget;
181
182 static const char hw_platform[] = "/sys/devices/soc0/hw_platform";
183 static const char hw_platform_dep[] =
184 "/sys/devices/system/soc/soc0/hw_platform";
185 static const char mdm[] = "/target"; // mdm target we are using
186
187 char rd_hw_platform[LINE_LEN];
188 char rd_id[LINE_LEN];
189 char rd_mdm[LINE_LEN];
190 char baseband[LINE_LEN];
191 char rd_auto_platform[LINE_LEN];
192
193 loc_get_target_baseband(baseband, sizeof(baseband));
194
195 if (!access(hw_platform, F_OK)) {
196 read_a_line(hw_platform, rd_hw_platform, LINE_LEN);
197 } else {
198 read_a_line(hw_platform_dep, rd_hw_platform, LINE_LEN);
199 }
200 // Get the soc-id for this device.
201 loc_get_device_soc_id(rd_id, sizeof(rd_id));
202
203 /*check automotive platform*/
204 loc_get_auto_platform_name(rd_auto_platform, sizeof(rd_auto_platform));
205 if( !memcmp(rd_auto_platform, STR_AUTO, LENGTH(STR_AUTO)) )
206 {
207 gTarget = TARGET_AUTO;
208 goto detected;
209 }
210
211 if( !memcmp(baseband, STR_APQ_NO_WGR, LENGTH(STR_APQ_NO_WGR)) ){
212
213 gTarget = TARGET_NO_GNSS;
214 goto detected;
215 }
216
217 if( !memcmp(baseband, STR_APQ, LENGTH(STR_APQ)) ||
218 !memcmp(baseband, STR_SDC, LENGTH(STR_SDC)) ||
219 !memcmp(baseband, STR_QCS, LENGTH(STR_QCS)) ) {
220
221 if( !memcmp(rd_id, MPQ8064_ID_1, LENGTH(MPQ8064_ID_1))
222 && IS_STR_END(rd_id[LENGTH(MPQ8064_ID_1)]) )
223 gTarget = TARGET_NO_GNSS;
224 else
225 gTarget = TARGET_APQ_SA;
226 } else if (((!memcmp(rd_hw_platform, STR_LIQUID, LENGTH(STR_LIQUID))
227 && IS_STR_END(rd_hw_platform[LENGTH(STR_LIQUID)])) ||
228 (!memcmp(rd_hw_platform, STR_SURF, LENGTH(STR_SURF))
229 && IS_STR_END(rd_hw_platform[LENGTH(STR_SURF)])) ||
230 (!memcmp(rd_hw_platform, STR_MTP, LENGTH(STR_MTP))
231 && IS_STR_END(rd_hw_platform[LENGTH(STR_MTP)]))) &&
232 !read_a_line( mdm, rd_mdm, LINE_LEN)) {
233 gTarget = TARGET_MDM;
234 } else if( (!memcmp(rd_id, MSM8930_ID_1, LENGTH(MSM8930_ID_1))
235 && IS_STR_END(rd_id[LENGTH(MSM8930_ID_1)])) ||
236 (!memcmp(rd_id, MSM8930_ID_2, LENGTH(MSM8930_ID_2))
237 && IS_STR_END(rd_id[LENGTH(MSM8930_ID_2)])) ) {
238 gTarget = TARGET_MSM_NO_SSC;
239 } else if ( !memcmp(baseband, STR_MSM, LENGTH(STR_MSM)) ||
240 !memcmp(baseband, STR_SDM, LENGTH(STR_SDM)) ) {
241 gTarget = TARGET_DEFAULT;
242 } else {
243 gTarget = TARGET_UNKNOWN;
244 }
245
246 detected:
247 LOC_LOGW("HAL: %s returned %d", __FUNCTION__, gTarget);
248 return gTarget;
249 }
250