android系統開發(五)-tslib移植

(1)切換至tslib目錄然後執行如下命令(以marvell平台為例)
./autogen.sh
echo "ac_cv_func_malloc_0_nonnull=yes" > arm-marvell-linux.cache
./configure --host=arm-marvell-linux-gnueabi --prefix=/work/svn/ts_build --cache-file=arm-marvell-linux.cache
上面三步僅僅是為了取得tslib目錄下的config.h檔案

(2)將tslib複製到android原始碼vendor/<company_name>/<board_name>目錄下

(3)修改vendor/<company_name>/<board_name>目錄下的AndroidBoard.mk檔案，加入如下內容
include $(LOCAL_PATH)/tslib/Mdroid.mk
一定要主義LOCAL_PATH這個宏的時效性

(4)在tslib目錄下建立Mdroid.mk，內容如下：
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)

TS_PATH := $(LOCAL_PATH)

include $(TS_PATH)/src/Mdroid.mk
include $(TS_PATH)/plugins/Mdroid.mk
include $(TS_PATH)/tests/Mdroid.mk

include $(CLEAR_VARS)
file := $(TARGET_OUT_ETC)/ts.conf
$(file) : $(TS_PATH)/etc/ts.conf | $(ACP)
    $(transform-prebuilt-to-target)
ALL_PREBUILT += $(file)

(5)在tslib/src目錄下建立Mdroid.mk，內容如下：
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)

LOCAL_SRC_FILES:= ts_attach.c ts_close.c ts_config.c /
    ts_error.c ts_fd.c ts_load_module.c ts_open.c ts_parse_vars.c /
    ts_read.c ts_read_raw.c ts_option.c

LOCAL_C_INCLUDES += /
        $(LOCAL_PATH)/../

LOCAL_SHARED_LIBRARIES += libutils libcutils

LOCAL_SHARED_LIBRARIES += libdl
LOCAL_PRELINK_MODULE := false
LOCAL_MODULE := libts

include $(BUILD_SHARED_LIBRARY)

(6)在tslib/plugins目錄下建立Mdroid.mk，內容如下：
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)

LOCAL_SRC_FILES:= input-raw.c

LOCAL_C_INCLUDES += /
        $(LOCAL_PATH)/../ /
        $(LOCAL_PATH)/../src

LOCAL_SHARED_LIBRARIES := libts
LOCAL_MODULE := input
LOCAL_PRELINK_MODULE := false
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_SRC_FILES:= pthres.c

LOCAL_C_INCLUDES += /
        $(LOCAL_PATH)/../ /
        $(LOCAL_PATH)/../src

LOCAL_SHARED_LIBRARIES := libts
LOCAL_MODULE := pthres
LOCAL_PRELINK_MODULE := false
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_SRC_FILES:= variance.c

LOCAL_C_INCLUDES += /
        $(LOCAL_PATH)/../ /
        $(LOCAL_PATH)/../src

LOCAL_SHARED_LIBRARIES := libts
LOCAL_MODULE := variance
LOCAL_PRELINK_MODULE := false
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_SRC_FILES:= dejitter.c

LOCAL_C_INCLUDES += /
        $(LOCAL_PATH)/../ /
        $(LOCAL_PATH)/../src

LOCAL_SHARED_LIBRARIES := libts
LOCAL_MODULE := dejitter
LOCAL_PRELINK_MODULE := false
include $(BUILD_SHARED_LIBRARY)

include $(CLEAR_VARS)
LOCAL_SRC_FILES:= linear.c

LOCAL_C_INCLUDES += /
        $(LOCAL_PATH)/../ /
        $(LOCAL_PATH)/../src

LOCAL_SHARED_LIBRARIES := libts
LOCAL_MODULE := linear
LOCAL_PRELINK_MODULE := false
include $(BUILD_SHARED_LIBRARY)

(7)在tslib/tests目錄下建立Mdroid.mk，內容如下：
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)

LOCAL_SRC_FILES:= ts_calibrate.c fbutils.c testutils.c font_8x8.c font_8x16.c

LOCAL_C_INCLUDES += /
        $(LOCAL_PATH)/../ /
        $(LOCAL_PATH)/../src

LOCAL_SHARED_LIBRARIES := libts

LOCAL_SHARED_LIBRARIES += libutils libcutils

LOCAL_MODULE := tscalibrate

include $(BUILD_EXECUTABLE)

(8)在tslib/config.h檔案中加入如下定義：
#define TS_CONF  "/system/etc/ts.conf"
#define PLUGIN_DIR "/system/lib"
#define TS_POINTERCAL "/data/etc/pointercal"

(9)將下面路徑檔案
tslib/src/ts_open.c
tslib/tests/ts_calibrate.c
tslib/tests/fbutils.c
中的
#include <sys/fcntl.h>
修改成
#include <fcntl.h>

(10)將tslib/tests/ts_calibrate.c檔案中
static int clearbuf(struct tsdev *ts)
修改為
static void clearbuf(struct tsdev *ts)

(11)修改tslib/etc/ts.conf內容如下：
module_raw input
module pthres pmin=1
module variance delta=30
module dejitter delta=100
module linear

(12)在android原始碼init.rc中聲明tslib相關的宏如下：
# touchscreen parameters
    export TSLIB_FBDEVICE /dev/graphics/fb0
    export TSLIB_CALIBFILE /data/etc/pointercal
    export TSLIB_CONFFILE  /system/etc/ts.conf
    export TSLIB_TRIGGERDEV /dev/input/event0
    export TSLIB_TSDEVICE /dev/input/event1

(13)重新編譯後即可調用tscalibrate命令來校正觸控螢幕，校正後產生一個/data/etc/pointercal檔案