现在86V上常用的TP的驱动源码

mark83136

/* drivers/input/touchscreen/gt811.c * * Copyright (C) 2010 - 2011 Goodix, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for * more details. * *Any problem,please contact andrew@goodix.com,+86 755-33338828 * */#include <linux/kernel.h>#include <linux/module.h>#include <linux/time.h>#include <linux/delay.h>#include <linux/device.h>#include <linux/earlysuspend.h>#include <linux/hrtimer.h>#include <linux/i2c.h>#include <linux/input.h>#include <linux/interrupt.h>#include <linux/io.h>#include <linux/platform_device.h>#include <mach/gpio.h>//#include <plat/gpio-cfg.h>//#include <plat/gpio-bank-l.h>//#include <plat/gpio-bank-f.h>#include <linux/irq.h>#include <linux/syscalls.h>#include <linux/reboot.h>#include <linux/proc_fs.h>#include "86v_gt811_ts.h"#include "gt811_firmware.h"#include <linux/vmalloc.h>#include <linux/fs.h>#include <linux/string.h>#include <linux/completion.h>#include <asm/uaccess.h>#include <linux/input/mt.h>#include <mach/iomux.h>static struct workqueue_struct *goodix_wq;static const char *s3c_ts_name = "gt811_ts";//static struct point_queue finger_list;struct i2c_client * i2c_connect_client = NULL;//EXPORT_SYMBOL(i2c_connect_client);static struct proc_dir_entry *goodix_proc_entry;static short  goodix_read_version(struct gt811_ts_data *ts);//static int tpd_button(struct gt811_ts_data *ts, unsigned int x, unsigned int y, unsigned int down);#ifdef CONFIG_HAS_EARLYSUSPENDstatic void goodix_ts_early_suspend(struct early_suspend *h);static void goodix_ts_late_resume(struct early_suspend *h);int  gt811_downloader( struct gt811_ts_data *ts, unsigned char * data);#endif//used by firmware update CRCunsigned int oldcrc32 = 0xFFFFFFFF;unsigned int crc32_table[256];unsigned int ulPolynomial = 0x04c11db7;unsigned int raw_data_ready = RAW_DATA_NON_ACTIVE;#ifdef DEBUGint sum = 0;int access_count = 0;int int_count = 0;#endif#define HAVE_TOUCH_KEY //#define READ_KEY_VALUE //#define READ_KEY_COOR#ifdef HAVE_TOUCH_KEY    const uint16_t touch_key_array[]={                                       KEY_MENU,             //MENU                                       KEY_HOMEPAGE,                                       KEY_BACK,                                       KEY_SEARCH                                      };#define MAX_KEY_NUM  (sizeof(touch_key_array)/sizeof(touch_key_array[0]))#endif/*******************************************************    Function:    Read data from the slave    Each read operation with two i2c_msg composition, for the first message sent from the machine address,    Article 2 reads the address used to send and retrieve data; each message sent before the start signalParameters:    client: i2c devices, including device address    buf [0]: The first byte to read Address    buf [1] ~ buf [len]: data buffer    len: the length of read datareturn:    Execution messages*********************************************************//*Function as i2c_master_send */static int i2c_read_bytes(struct i2c_client *client, uint8_t *buf, int len){    struct i2c_msg msgs[2];    int ret=-1;    msgs[0].flags=!I2C_M_RD;    msgs[0].addr=client->addr;    msgs[0].len=2;    msgs[0].buf=&buf[0];    msgs[0].scl_rate=200000;    msgs[1].flags=I2C_M_RD;    msgs[1].addr=client->addr;    msgs[1].len=len-2;    msgs[1].buf=&buf[2];    msgs[1].scl_rate=200000;    ret=i2c_transfer(client->adapter,msgs, 2);    return ret;}/*******************************************************    Function:    Write data to a slaveParameters:    client: i2c devices, including device address    buf [0]: The first byte of the write address    buf [1] ~ buf [len]: data buffer    len: data lengthreturn:    Execution messages*******************************************************//*Function as i2c_master_send */static int i2c_write_bytes(struct i2c_client *client,uint8_t *data,int len){    struct i2c_msg msg;    int ret=-1;    //发送设备地址    msg.flags=!I2C_M_RD;//写消�?    msg.addr=client->addr;    msg.len=len;    msg.buf=data;    msg.scl_rate=200000;    msg.addr=client->addr;    ret=i2c_transfer(client->adapter,&msg, 1);    return ret;}/*******************************************************Function:    Send a prefix command    Parameters:    ts: client private data structure    return:    Results of the implementation code, 0 for normal execution*******************************************************/static int i2c_pre_cmd(struct gt811_ts_data *ts){    int ret;    uint8_t pre_cmd_data[2]={0};    pre_cmd_data[0]=0x0f;    pre_cmd_data[1]=0xff;    ret=i2c_write_bytes(ts->client,pre_cmd_data,2);    //msleep(2);    return ret;}/*******************************************************Function:    Send a suffix command    Parameters:    ts: client private data structure    return:    Results of the implementation code, 0 for normal execution*******************************************************/static int i2c_end_cmd(struct gt811_ts_data *ts){    int ret;    uint8_t end_cmd_data[2]={0};    end_cmd_data[0]=0x80;    end_cmd_data[1]=0x00;    ret=i2c_write_bytes(ts->client,end_cmd_data,2);    //msleep(2);    return ret;}/*****************************************************************************************************************************************/#ifdef COOR_TO_KEYstatic int list_key(s32 x_value, s32 y_value, u8* key){    s32 i;#ifdef AREA_Y    if (y_value <= AREA_Y)#else    if (x_value <= AREA_X)#endif    {        return 0;    }    for (i = 0; i < MAX_KEY_NUM; i++)    {        if (abs(key_center[x] - x_value) < KEY_X        && abs(key_center[y] - y_value) < KEY_Y)        {            (*key) |= (0x01<<i);            }        }    return 1;}#endif /*******************************************************Function:    Guitar initialization function, used to send configuration information, access to version informationParameters:    ts: client private data structurereturn:    Results of the implementation code, 0 for normal execution*******************************************************/static int goodix_init_panel(struct gt811_ts_data *ts){

shuobing

有附件吗？