Utility to identify target HW

Earlier this identification was done in loc.cpp
This change moves that to a separate utility.
Also included is a change to not return
a handle to the GPS interface if the target
is found to be MPQ8064.
This change is a re-cherry-pick from
change id - I98d5619d2e6e63711a9b56f0af2b3ddd27372871

Change-Id: I058d206c37245b44f1cf74d6065e7ce46f50baf7
CRs-Fixed: 418009

6 files changed, 210 insertions, 69 deletions

diff --git a/loc_api/libloc_api_50001/loc.cpp b/loc_api/libloc_api_50001/loc.cpp
index 6592cc5..fc6a216 100644
--- a/loc_api/libloc_api_50001/loc.cpp
+++ b/loc_api/libloc_api_50001/loc.cpp
@@ -33,10 +33,10 @@
 #include <hardware/gps.h>
 #include <loc_ulp.h>
 #include <loc_eng.h>
+#include <loc_target.h>
 #include <loc_log.h>
 #include <msg_q.h>
 #include <dlfcn.h>
-
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
@@ -190,65 +190,6 @@ static const UlpPhoneContextInterface sLocEngUlpPhoneContextInterface =
 static loc_eng_data_s_type loc_afw_data;
 static int gss_fd = 0;
 
-#define TARGET_NAME_OTHER              0
-#define TARGET_NAME_APQ8064_STANDALONE 1
-#define TARGET_NAME_APQ8064_FUSION3    2
-
-static int read_a_line(const char * file_path, char * line, int line_size)
-{
-    FILE *fp;
-    int result = 0;
-
-    * line = '\0';
-    fp = fopen(file_path, "r" );
-    if( fp == NULL ) {
-        LOC_LOGE("open failed: %s: %s\n", file_path, strerror(errno));
-        result = -1;
-    } else {
-        int len;
-        fgets(line, line_size, fp);
-        len = strlen(line);
-        len = len < line_size - 1? len : line_size - 1;
-        line[len] = '\0';
-        LOC_LOGD("cat %s: %s", file_path, line);
-        fclose(fp);
-    }
-    return result;
-}
-
-#define LINE_LEN 100
-#define STR_LIQUID    "Liquid"
-#define STR_SURF      "Surf"
-#define STRLEN_LIQUID (sizeof(STR_LIQUID) - 1)
-#define STRLEN_SURF   (sizeof(STR_SURF) - 1)
-#define IS_STR_END(c) ((c) == '\0' || (c) == '\n' || (c) == '\r')
-
-static int get_target_name(void)
-{
-    int target_name = TARGET_NAME_OTHER;
-
-    char hw_platform[]      = "/sys/devices/system/soc/soc0/hw_platform"; // "Liquid" or "Surf"
-    char id[]               = "/sys/devices/system/soc/soc0/id"; //109
-    char mdm[]              = "/dev/mdm"; // No such file or directory
-
-    char line[LINE_LEN];
-
-    read_a_line( hw_platform, line, LINE_LEN);
-    if(( !memcmp(line, STR_LIQUID, STRLEN_LIQUID) && IS_STR_END(line[STRLEN_LIQUID]) ) ||
-       ( !memcmp(line, STR_SURF,   STRLEN_SURF)   && IS_STR_END(line[STRLEN_SURF])   )
-      ) {
-        if (!read_a_line( mdm, line, LINE_LEN)) {
-            target_name = TARGET_NAME_APQ8064_FUSION3;
-        } else {
-            read_a_line( id, line, LINE_LEN);
-            if(!strncmp(line, "109", strlen("109")) || !strncmp(line, "153", strlen("153"))) {
-                target_name = TARGET_NAME_APQ8064_STANDALONE;
-            }
-        }
-    }
-    return target_name;
-}
-
 /*===========================================================================
 FUNCTION    gps_get_hardware_interface
 
@@ -290,6 +231,7 @@ const GpsInterface* gps_get_hardware_interface ()
 // for gps.c
 extern "C" const GpsInterface* get_gps_interface()
 {
+    targetEnumType target = TARGET_OTHER;
     loc_eng_read_config();
 
     //We load up libulp module at this point itself if ULP configured to be On
@@ -297,16 +239,23 @@ extern "C" const GpsInterface* get_gps_interface()
        loc_eng_ulp_inf = loc_eng_get_ulp_inf();
     }
 
-    if (get_target_name() == TARGET_NAME_APQ8064_STANDALONE)
-    {
+    target = get_target();
+    LOC_LOGD("Target name check returned %s", loc_get_target_name(target));
+    //APQ8064
+    if(target == TARGET_APQ8064_STANDALONE) {
         gps_conf.CAPABILITIES &= ~(GPS_CAPABILITY_MSA | GPS_CAPABILITY_MSB);
         gss_fd = open("/dev/gss", O_RDONLY);
-        if (gss_fd < 0) {
+        if (gss_fd < 0)
             LOC_LOGE("GSS open failed: %s\n", strerror(errno));
+        else {
+            LOC_LOGD("GSS open success! CAPABILITIES %0lx\n", gps_conf.CAPABILITIES);
         }
-        LOC_LOGD("GSS open success! CAPABILITIES %0x\n", gps_conf.CAPABILITIES);
     }
-
+    //MPQ8064
+    else if(target == TARGET_MPQ8064) {
+        LOC_LOGE("No GPS HW on this target (MPQ8064). Not returning interface");
+        return NULL;
+    }
     return &sLocEngInterface;
 }
 
@@ -410,7 +359,7 @@ static void loc_cleanup()
     gps_sv_cb = NULL;
 
     /*
-     * if (get_target_name() == TARGET_NAME_APQ8064_STANDALONE)
+     * if (get_target() == TARGET_NAME_APQ8064_STANDALONE)
      * {
      *     close(gss_fd);
      *     LOC_LOGD("GSS shutdown.\n");
diff --git a/utils/Android.mk b/utils/Android.mk
index 4bf0401..7dc1799 100644
--- a/utils/Android.mk
+++ b/utils/Android.mk
@@ -15,7 +15,8 @@ LOCAL_SRC_FILES += \
     loc_log.cpp \
     loc_cfg.cpp \
     msg_q.c \
-    linked_list.c
+    linked_list.c \
+    loc_target.cpp
 
 LOCAL_CFLAGS += \
      -fno-short-enums \
@@ -32,7 +33,8 @@ LOCAL_COPY_HEADERS:= \
    loc_cfg.h \
    log_util.h \
    linked_list.h \
-   msg_q.h
+   msg_q.h \
+   loc_target.h
 
 LOCAL_MODULE := libgps.utils
 
diff --git a/utils/loc_log.cpp b/utils/loc_log.cpp
index 8b064ec..f39667c 100644
--- a/utils/loc_log.cpp
+++ b/utils/loc_log.cpp
@@ -34,7 +34,6 @@
 #include <sys/time.h>
 #include "loc_log.h"
 #include "msg_q.h"
-
 #include "log_util.h"
 
 // Logging Improvements
@@ -100,6 +99,35 @@ const char* log_succ_fail_string(int is_succ)
    return is_succ? "successful" : "failed";
 }
 
+//Target names
+loc_name_val_s_type target_name[] =
+{
+    NAME_VAL(TARGET_OTHER),
+    NAME_VAL(TARGET_APQ8064_STANDALONE),
+    NAME_VAL(TARGET_APQ8064_FUSION3),
+    NAME_VAL(TARGET_MPQ8064),
+    NAME_VAL(TARGET_MSM8930)
+};
+
+static int target_name_num = sizeof(target_name)/sizeof(loc_name_val_s_type);
+
+/*===========================================================================
+
+FUNCTION loc_get_target_name
+
+DESCRIPTION
+   Returns pointer to a string that contains name of the target
+
+   XX:XX:XX.000\0
+
+RETURN VALUE
+   The target name string
+
+===========================================================================*/
+const char *loc_get_target_name(targetEnumType target)
+{
+    return loc_get_name_from_val(target_name, target_name_num, (long)target);
+}
 
 /*===========================================================================
 
diff --git a/utils/loc_log.h b/utils/loc_log.h
index 63236de..abe29b7 100644
--- a/utils/loc_log.h
+++ b/utils/loc_log.h
@@ -36,6 +36,7 @@ extern "C"
 #endif
 
 #include <ctype.h>
+#include "loc_target.h"
 
 typedef struct
 {
@@ -54,6 +55,7 @@ typedef struct
 const char* loc_get_name_from_mask(loc_name_val_s_type table[], int table_size, long mask);
 const char* loc_get_name_from_val(loc_name_val_s_type table[], int table_size, long value);
 const char* loc_get_msg_q_status(int status);
+const char* loc_get_target_name(targetEnumType target);
 
 extern const char* log_succ_fail_string(int is_succ);
 
diff --git a/utils/loc_target.cpp b/utils/loc_target.cpp
new file mode 100644
index 0000000..10b508c
--- /dev/null
+++ b/utils/loc_target.cpp
@@ -0,0 +1,109 @@
+/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of The Linux Foundation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER 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.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <hardware/gps.h>
+#include <cutils/properties.h>
+#include "loc_target.h"
+#include "loc_log.h"
+#include "log_util.h"
+
+#define APQ8064_ID_1 "109"
+#define APQ8064_ID_2 "153"
+#define MPQ8064_ID_1 "130"
+#define MSM8930_ID_1 "142"
+#define MSM8930_ID_2 "116"
+
+#define LINE_LEN 100
+#define STR_LIQUID    "Liquid"
+#define STR_SURF      "Surf"
+#define IS_STR_END(c) ((c) == '\0' || (c) == '\n' || (c) == '\r')
+#define LENGTH(s) (sizeof(s) - 1)
+#define GPS_CHECK_NO_ERROR 0
+#define GPS_CHECK_NO_GPS_HW 1
+
+static int gss_fd = 0;
+
+static int read_a_line(const char * file_path, char * line, int line_size)
+{
+    FILE *fp;
+    int result = 0;
+
+    * line = '\0';
+    fp = fopen(file_path, "r" );
+    if( fp == NULL ) {
+        LOC_LOGE("open failed: %s: %s\n", file_path, strerror(errno));
+        result = -1;
+    } else {
+        int len;
+        fgets(line, line_size, fp);
+        len = strlen(line);
+        len = len < line_size - 1? len : line_size - 1;
+        line[len] = '\0';
+        LOC_LOGD("cat %s: %s", file_path, line);
+        fclose(fp);
+    }
+    return result;
+}
+
+targetEnumType get_target(void)
+{
+    targetEnumType target = TARGET_OTHER;
+
+    char hw_platform[]      = "/sys/devices/system/soc/soc0/hw_platform";
+    char id[]               = "/sys/devices/system/soc/soc0/id";
+    char mdm[]              = "/dev/mdm"; // No such file or directory
+
+    char rd_hw_platform[LINE_LEN];
+    char rd_id[LINE_LEN];
+    char rd_mdm[LINE_LEN];
+
+    read_a_line(hw_platform, rd_hw_platform, LINE_LEN);
+    read_a_line( id, rd_id, LINE_LEN);
+
+    if( (!memcmp(rd_hw_platform, STR_LIQUID, LENGTH(STR_LIQUID)) && IS_STR_END(rd_hw_platform[LENGTH(STR_LIQUID)])) ||
+        (!memcmp(rd_hw_platform, STR_SURF,   LENGTH(STR_SURF))   && IS_STR_END(rd_hw_platform[LENGTH(STR_SURF)])) ) {
+        if (!read_a_line( mdm, rd_mdm, LINE_LEN))
+            target = TARGET_APQ8064_FUSION3;
+        else if( (!memcmp(rd_id, APQ8064_ID_1, LENGTH(APQ8064_ID_1)) && IS_STR_END(rd_id[LENGTH(APQ8064_ID_1)])) ||
+                 (!memcmp(rd_id, APQ8064_ID_2, LENGTH(APQ8064_ID_2)) && IS_STR_END(rd_id[LENGTH(APQ8064_ID_2)])) )
+            target = TARGET_APQ8064_STANDALONE;
+    }
+    else if( !memcmp(rd_id, MPQ8064_ID_1, LENGTH(MPQ8064_ID_1)) && IS_STR_END(rd_id[LENGTH(MPQ8064_ID_1)]) )
+        target = TARGET_MPQ8064;
+    else if( (!memcmp(rd_id, MSM8930_ID_1, LENGTH(MSM8930_ID_1)) && IS_STR_END(rd_id[LENGTH(MSM8930_ID_1)])) ||
+             (!memcmp(rd_id, MSM8930_ID_2, LENGTH(MSM8930_ID_2)) && IS_STR_END(rd_id[LENGTH(MSM8930_ID_2)])) )
+        target = TARGET_MSM8930;
+    return target;
+}
diff --git a/utils/loc_target.h b/utils/loc_target.h
new file mode 100644
index 0000000..489aadd
--- /dev/null
+++ b/utils/loc_target.h
@@ -0,0 +1,51 @@
+/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of The Linux Foundation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER 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.
+ *
+ */
+#ifndef LOC_TARGET_H
+#define LOC_TARGET_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+typedef enum {
+    TARGET_OTHER = 0,
+    TARGET_APQ8064_STANDALONE,
+    TARGET_APQ8064_FUSION3,
+    TARGET_MPQ8064,
+    TARGET_MSM8930
+}targetEnumType;
+
+targetEnumType get_target(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*LOC_TARGET_H*/