From ec2052799f860ea6432482dbc26f54b5819130d3 Mon Sep 17 00:00:00 2001
From: Paul Kocialkowski <contact@paulk.fr>
Date: Mon, 1 Sep 2014 13:58:40 +0200
Subject: Firmware data load from a static file instead of a library

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
 src/phHal4Nfc.c | 71 ++++++++++++++++++++++++++++++++++++++++-----------------
 src/phLibNfc.c  |  4 ++--
 2 files changed, 52 insertions(+), 23 deletions(-)

diff --git a/src/phHal4Nfc.c b/src/phHal4Nfc.c
index f40ed9b..168d4e6 100755
--- a/src/phHal4Nfc.c
+++ b/src/phHal4Nfc.c
@@ -304,41 +304,68 @@ phHal4Nfc_Configure_Layers(
 #define LOG_TAG "NFC-HCI"
 
 #include <utils/Log.h>
-#include <dlfcn.h>
+#include <sys/stat.h>
+#include <fcntl.h>
 
-#define FW_PATH "/system/vendor/firmware/libpn544_fw.so"
-#define FW_PATH_2 "/system/lib/libpn544_fw.so"
+#define FW_PATH "/system/vendor/firmware/pn544.bin"
 
 const unsigned char *nxp_nfc_full_version = NULL;
 const unsigned char *nxp_nfc_fw = NULL;
 
-int dlopen_firmware() {
-    void *p;
+int open_firmware() {
+    struct stat firmware_stat;
+    void *buffer;
+    size_t length;
+    int fd;
+    int rc;
 
-    void *handle = dlopen(FW_PATH, RTLD_NOW);
-    if (handle == NULL) {
-        handle = dlopen(FW_PATH_2, RTLD_NOW);
-        if (handle == NULL) {
-            ALOGE("Could not open %s or %s", FW_PATH, FW_PATH_2);
-            return -1;
-        }
+    if (nxp_nfc_full_version != NULL && nxp_nfc_fw != NULL)
+        return 0;
+
+    rc = stat(FW_PATH, &firmware_stat);
+    if (rc < 0) {
+        ALOGE("Could not open %s", FW_PATH);
+        return -1;
+    }
+
+    if (firmware_stat.st_size < NXP_FULL_VERSION_LEN) {
+        ALOGE("Invalid %s size: %lld", FW_PATH, firmware_stat.st_size);
+        return -1;
     }
 
-    p = dlsym(handle, "nxp_nfc_full_version");
-    if (p == NULL) {
-        ALOGE("Could not link nxp_nfc_full_version");
+    length = (size_t) firmware_stat.st_size;
+
+    fd = open(FW_PATH, O_RDONLY);
+    if (fd < 0) {
+        ALOGE("Could not open %s", FW_PATH);
         return -1;
     }
-    nxp_nfc_full_version = (unsigned char *)p;
 
-    p = dlsym(handle, "nxp_nfc_fw");
-    if (p == NULL) {
-        ALOGE("Could not link nxp_nfc_fw");
+    buffer = malloc(length);
+
+    rc = read(fd, buffer, length);
+    if (rc < (int) length) {
+        ALOGE("Could not read %s", FW_PATH);
         return -1;
     }
-    nxp_nfc_fw = (unsigned char *)p;
+
+    close(fd);
+
+    nxp_nfc_full_version = (const unsigned char *) buffer;
+    nxp_nfc_fw = ((const unsigned char *) buffer + NXP_FULL_VERSION_LEN);
 
     return 0;
+
+}
+
+void close_firmware() {
+    if (nxp_nfc_full_version == NULL || nxp_nfc_fw == NULL)
+        return;
+
+    free((void *) nxp_nfc_full_version);
+
+    nxp_nfc_full_version = NULL;
+    nxp_nfc_fw = NULL;
 }
 #endif
 
@@ -377,7 +404,7 @@ NFCSTATUS phHal4Nfc_Open(
     else/*Do an initialization*/
     {
 #ifdef ANDROID
-        dlopen_firmware();
+        open_firmware();
 #endif
 
         /*If hal4 ctxt in Hwreference is NULL create a new context*/
@@ -723,6 +750,8 @@ NFCSTATUS phHal4Nfc_Close(
         {
 
         }
+
+        close_firmware();
     }
     return closeRetVal;
 }
diff --git a/src/phLibNfc.c b/src/phLibNfc.c
index 6477a3f..7b9310a 100644
--- a/src/phLibNfc.c
+++ b/src/phLibNfc.c
@@ -47,7 +47,7 @@
 *************************** Macro's  ******************************************
 */
 
-extern int dlopen_firmware();
+extern int open_firmware();
 
 #ifndef STATIC_DISABLE
 #define STATIC static
@@ -125,7 +125,7 @@ NFCSTATUS phLibNfc_Download_Mode ()
 int phLibNfc_Load_Firmware_Image ()
 {
     int status;
-    status = dlopen_firmware();
+    status = open_firmware();
     return status;
 }
 
-- 
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