627 lines
17 KiB
C
627 lines
17 KiB
C
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/* drivers/input/touchscreen/goodix_tool.c
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*
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* 2010 - 2012 Goodix Technology.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be a reference
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* to you, when you are integrating the GOODiX's CTP IC into your system,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* Version:2.2
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* V1.0:2012/05/01,create file.
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* V1.2:2012/06/08,modify some warning.
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* V1.4:2012/08/28,modified to support GT9XX
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* V1.6:new proc name
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* V2.2: compatible with Linux 3.10, 2014/01/14
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*/
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#include "gt9xx.h"
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#define DATA_LENGTH_UINT 512
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#define CMD_HEAD_LENGTH (sizeof(st_cmd_head) - sizeof(u8*))
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static char procname[20] = {0};
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#define UPDATE_FUNCTIONS
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#ifdef UPDATE_FUNCTIONS
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extern s32 gup_enter_update_mode(struct i2c_client *client);
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extern void gup_leave_update_mode(void);
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extern s32 gup_update_proc(void *dir);
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#endif
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extern void gtp_irq_disable(struct goodix_ts_data *);
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extern void gtp_irq_enable(struct goodix_ts_data *);
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#pragma pack(1)
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typedef struct{
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u8 wr; //write read flag<61><67>0:R 1:W 2:PID 3:
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u8 flag; //0:no need flag/int 1: need flag 2:need int
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u8 flag_addr[2]; //flag address
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u8 flag_val; //flag val
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u8 flag_relation; //flag_val:flag 0:not equal 1:equal 2:> 3:<
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u16 circle; //polling cycle
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u8 times; //plling times
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u8 retry; //I2C retry times
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u16 delay; //delay befor read or after write
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u16 data_len; //data length
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u8 addr_len; //address length
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u8 addr[2]; //address
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u8 res[3]; //reserved
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u8* data; //data pointer
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}st_cmd_head;
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#pragma pack()
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st_cmd_head cmd_head;
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static struct i2c_client *gt_client = NULL;
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static struct proc_dir_entry *goodix_proc_entry;
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static ssize_t goodix_tool_read(struct file *, char __user *, size_t, loff_t *);
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static ssize_t goodix_tool_write(struct file *, const char __user *, size_t, loff_t *);
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static const struct file_operations tool_ops = {
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.owner = THIS_MODULE,
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.read = goodix_tool_read,
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.write = goodix_tool_write,
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};
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//static s32 goodix_tool_write(struct file *filp, const char __user *buff, unsigned long len, void *data);
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//static s32 goodix_tool_read( char *page, char **start, off_t off, int count, int *eof, void *data );
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static s32 (*tool_i2c_read)(u8 *, u16);
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static s32 (*tool_i2c_write)(u8 *, u16);
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#if GTP_ESD_PROTECT
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extern void gtp_esd_switch(struct i2c_client *, s32);
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#endif
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s32 DATA_LENGTH = 0;
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s8 IC_TYPE[16] = "GT9XX";
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static void tool_set_proc_name(char * procname)
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{
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char *months[12] = {"Jan", "Feb", "Mar", "Apr", "May",
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"Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
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char date[20] = {0};
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char month[4] = {0};
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int i = 0, n_month = 1, n_day = 0, n_year = 0;
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//GTP_DEBUG("compile date: %s", date);
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sscanf(date, "%3s %02d %04d", month, &n_day, &n_year);
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for (i = 0; i < 12; ++i)
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{
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if (!memcmp(months[i], month, 3))
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{
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n_month = i+1;
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break;
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}
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}
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sprintf(procname, "gmnode%04d%02d%02d", n_year, n_month, n_day);
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//sprintf(procname, "goodix_tool");
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//GTP_DEBUG("procname = %s", procname);
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}
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static s32 tool_i2c_read_no_extra(u8* buf, u16 len)
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{
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s32 ret = -1;
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s32 i = 0;
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struct i2c_msg msgs[2];
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msgs[0].flags = !I2C_M_RD;
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msgs[0].addr = gt_client->addr;
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msgs[0].len = cmd_head.addr_len;
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msgs[0].buf = &buf[0];
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msgs[1].flags = I2C_M_RD;
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msgs[1].addr = gt_client->addr;
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msgs[1].len = len;
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msgs[1].buf = &buf[GTP_ADDR_LENGTH];
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for (i = 0; i < cmd_head.retry; i++)
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{
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ret=i2c_transfer(gt_client->adapter, msgs, 2);
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if (ret > 0)
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{
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break;
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}
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}
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return ret;
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}
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static s32 tool_i2c_write_no_extra(u8* buf, u16 len)
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{
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s32 ret = -1;
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s32 i = 0;
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struct i2c_msg msg;
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msg.flags = !I2C_M_RD;
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msg.addr = gt_client->addr;
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msg.len = len;
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msg.buf = buf;
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for (i = 0; i < cmd_head.retry; i++)
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{
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ret=i2c_transfer(gt_client->adapter, &msg, 1);
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if (ret > 0)
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{
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break;
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}
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}
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return ret;
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}
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static s32 tool_i2c_read_with_extra(u8* buf, u16 len)
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{
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s32 ret = -1;
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u8 pre[2] = {0x0f, 0xff};
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u8 end[2] = {0x80, 0x00};
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tool_i2c_write_no_extra(pre, 2);
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ret = tool_i2c_read_no_extra(buf, len);
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tool_i2c_write_no_extra(end, 2);
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return ret;
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}
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static s32 tool_i2c_write_with_extra(u8* buf, u16 len)
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{
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s32 ret = -1;
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u8 pre[2] = {0x0f, 0xff};
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u8 end[2] = {0x80, 0x00};
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tool_i2c_write_no_extra(pre, 2);
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ret = tool_i2c_write_no_extra(buf, len);
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tool_i2c_write_no_extra(end, 2);
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return ret;
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}
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static void register_i2c_func(void)
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{
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// if (!strncmp(IC_TYPE, "GT818", 5) || !strncmp(IC_TYPE, "GT816", 5)
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// || !strncmp(IC_TYPE, "GT811", 5) || !strncmp(IC_TYPE, "GT818F", 6)
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// || !strncmp(IC_TYPE, "GT827", 5) || !strncmp(IC_TYPE,"GT828", 5)
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// || !strncmp(IC_TYPE, "GT813", 5))
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if (strncmp(IC_TYPE, "GT8110", 6) && strncmp(IC_TYPE, "GT8105", 6)
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&& strncmp(IC_TYPE, "GT801", 5) && strncmp(IC_TYPE, "GT800", 5)
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&& strncmp(IC_TYPE, "GT801PLUS", 9) && strncmp(IC_TYPE, "GT811", 5)
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&& strncmp(IC_TYPE, "GTxxx", 5) && strncmp(IC_TYPE, "GT9XX", 5))
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{
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tool_i2c_read = tool_i2c_read_with_extra;
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tool_i2c_write = tool_i2c_write_with_extra;
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GTP_DEBUG("I2C function: with pre and end cmd!");
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}
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else
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{
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tool_i2c_read = tool_i2c_read_no_extra;
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tool_i2c_write = tool_i2c_write_no_extra;
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GTP_INFO("I2C function: without pre and end cmd!");
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}
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}
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static void unregister_i2c_func(void)
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{
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tool_i2c_read = NULL;
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tool_i2c_write = NULL;
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GTP_INFO("I2C function: unregister i2c transfer function!");
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}
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s32 init_wr_node(struct i2c_client *client)
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{
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s32 i;
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gt_client = client;
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memset(&cmd_head, 0, sizeof(cmd_head));
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cmd_head.data = NULL;
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i = 5;
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while ((!cmd_head.data) && i)
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{
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cmd_head.data = kzalloc(i * DATA_LENGTH_UINT, GFP_KERNEL);
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if (NULL != cmd_head.data)
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{
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break;
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}
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i--;
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}
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if (i)
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{
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DATA_LENGTH = i * DATA_LENGTH_UINT + GTP_ADDR_LENGTH;
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GTP_INFO("Applied memory size:%d.", DATA_LENGTH);
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}
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else
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{
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GTP_ERROR("Apply for memory failed.");
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return FAIL;
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}
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cmd_head.addr_len = 2;
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cmd_head.retry = 5;
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register_i2c_func();
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tool_set_proc_name(procname);
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//goodix_proc_entry = create_proc_entry(procname, 0666, NULL);
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goodix_proc_entry = proc_create(procname, 0666, NULL, &tool_ops);
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if (goodix_proc_entry == NULL)
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{
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GTP_ERROR("Couldn't create proc entry!");
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return FAIL;
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}
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else
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{
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GTP_INFO("Create proc entry success!");
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//goodix_proc_entry->write_proc = goodix_tool_write;
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//goodix_proc_entry->read_proc = goodix_tool_read;
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}
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return SUCCESS;
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}
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void uninit_wr_node(void)
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{
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kfree(cmd_head.data);
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cmd_head.data = NULL;
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unregister_i2c_func();
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remove_proc_entry(procname, NULL);
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}
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static u8 relation(u8 src, u8 dst, u8 rlt)
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{
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u8 ret = 0;
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switch (rlt)
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{
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case 0:
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ret = (src != dst) ? true : false;
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break;
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case 1:
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ret = (src == dst) ? true : false;
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GTP_DEBUG("equal:src:0x%02x dst:0x%02x ret:%d.", src, dst, (s32)ret);
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break;
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case 2:
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ret = (src > dst) ? true : false;
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break;
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case 3:
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ret = (src < dst) ? true : false;
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break;
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case 4:
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ret = (src & dst) ? true : false;
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break;
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case 5:
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ret = (!(src | dst)) ? true : false;
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break;
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default:
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ret = false;
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break;
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}
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return ret;
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}
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/*******************************************************
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Function:
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Comfirm function.
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Input:
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None.
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Output:
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Return write length.
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********************************************************/
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static u8 comfirm(void)
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{
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s32 i = 0;
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u8 buf[32];
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// memcpy(&buf[GTP_ADDR_LENGTH - cmd_head.addr_len], &cmd_head.flag_addr, cmd_head.addr_len);
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// memcpy(buf, &cmd_head.flag_addr, cmd_head.addr_len);//Modified by Scott, 2012-02-17
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memcpy(buf, cmd_head.flag_addr, cmd_head.addr_len);
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for (i = 0; i < cmd_head.times; i++)
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{
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if (tool_i2c_read(buf, 1) <= 0)
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{
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GTP_ERROR("Read flag data failed!");
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return FAIL;
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}
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if (true == relation(buf[GTP_ADDR_LENGTH], cmd_head.flag_val, cmd_head.flag_relation))
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{
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GTP_DEBUG("value at flag addr:0x%02x.", buf[GTP_ADDR_LENGTH]);
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GTP_DEBUG("flag value:0x%02x.", cmd_head.flag_val);
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break;
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}
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msleep(cmd_head.circle);
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}
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if (i >= cmd_head.times)
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{
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GTP_ERROR("Didn't get the flag to continue!");
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return FAIL;
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|
}
|
|||
|
|
|
|||
|
|
return SUCCESS;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*******************************************************
|
|||
|
|
Function:
|
|||
|
|
Goodix tool write function.
|
|||
|
|
Input:
|
|||
|
|
standard proc write function param.
|
|||
|
|
Output:
|
|||
|
|
Return write length.
|
|||
|
|
********************************************************/
|
|||
|
|
//static s32 goodix_tool_write(struct file *filp, const char __user *buff, unsigned long len, void *data)
|
|||
|
|
ssize_t goodix_tool_write(struct file *filp, const char __user *buff, size_t len, loff_t *off)
|
|||
|
|
{
|
|||
|
|
s32 ret = 0;
|
|||
|
|
|
|||
|
|
GTP_DEBUG_FUNC();
|
|||
|
|
GTP_DEBUG_ARRAY((u8*)buff, len);
|
|||
|
|
|
|||
|
|
ret = copy_from_user(&cmd_head, buff, CMD_HEAD_LENGTH);
|
|||
|
|
if(ret)
|
|||
|
|
{
|
|||
|
|
GTP_ERROR("copy_from_user failed.");
|
|||
|
|
return -EPERM;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
GTP_DEBUG("[Operation]wr: %02X", cmd_head.wr);
|
|||
|
|
GTP_DEBUG("[Flag]flag: %02X, addr: %02X%02X, value: %02X, relation: %02X", cmd_head.flag, cmd_head.flag_addr[0],
|
|||
|
|
cmd_head.flag_addr[1], cmd_head.flag_val, cmd_head.flag_relation);
|
|||
|
|
GTP_DEBUG("[Retry]circle: %d, times: %d, retry: %d, delay: %d", (s32)cmd_head.circle, (s32)cmd_head.times,
|
|||
|
|
(s32)cmd_head.retry, (s32)cmd_head.delay);
|
|||
|
|
GTP_DEBUG("[Data]data len: %d, addr len: %d, addr: %02X%02X, buffer len: %d, data[0]: %02X", (s32)cmd_head.data_len,
|
|||
|
|
(s32)cmd_head.addr_len, cmd_head.addr[0], cmd_head.addr[1], (s32)len, buff[CMD_HEAD_LENGTH]);
|
|||
|
|
|
|||
|
|
if (1 == cmd_head.wr)
|
|||
|
|
{
|
|||
|
|
ret = copy_from_user(&cmd_head.data[GTP_ADDR_LENGTH], &buff[CMD_HEAD_LENGTH], cmd_head.data_len);
|
|||
|
|
if(ret)
|
|||
|
|
{
|
|||
|
|
GTP_ERROR("copy_from_user failed.");
|
|||
|
|
return -EPERM;
|
|||
|
|
}
|
|||
|
|
memcpy(&cmd_head.data[GTP_ADDR_LENGTH - cmd_head.addr_len], cmd_head.addr, cmd_head.addr_len);
|
|||
|
|
|
|||
|
|
GTP_DEBUG_ARRAY(cmd_head.data, cmd_head.data_len + cmd_head.addr_len);
|
|||
|
|
GTP_DEBUG_ARRAY((u8*)&buff[CMD_HEAD_LENGTH], cmd_head.data_len);
|
|||
|
|
|
|||
|
|
if (1 == cmd_head.flag)
|
|||
|
|
{
|
|||
|
|
if (FAIL == comfirm())
|
|||
|
|
{
|
|||
|
|
GTP_ERROR("[WRITE]Comfirm fail!");
|
|||
|
|
return -EPERM;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else if (2 == cmd_head.flag)
|
|||
|
|
{
|
|||
|
|
//Need interrupt!
|
|||
|
|
}
|
|||
|
|
if (tool_i2c_write(&cmd_head.data[GTP_ADDR_LENGTH - cmd_head.addr_len],
|
|||
|
|
cmd_head.data_len + cmd_head.addr_len) <= 0)
|
|||
|
|
{
|
|||
|
|
GTP_ERROR("[WRITE]Write data failed!");
|
|||
|
|
return -EPERM;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
GTP_DEBUG_ARRAY(&cmd_head.data[GTP_ADDR_LENGTH - cmd_head.addr_len],cmd_head.data_len + cmd_head.addr_len);
|
|||
|
|
if (cmd_head.delay)
|
|||
|
|
{
|
|||
|
|
msleep(cmd_head.delay);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else if (3 == cmd_head.wr) //Write ic type
|
|||
|
|
{
|
|||
|
|
ret = copy_from_user(&cmd_head.data[0], &buff[CMD_HEAD_LENGTH], cmd_head.data_len);
|
|||
|
|
if(ret)
|
|||
|
|
{
|
|||
|
|
GTP_ERROR("copy_from_user failed.");
|
|||
|
|
return -EPERM;
|
|||
|
|
}
|
|||
|
|
memcpy(IC_TYPE, cmd_head.data, cmd_head.data_len);
|
|||
|
|
|
|||
|
|
register_i2c_func();
|
|||
|
|
}
|
|||
|
|
else if (5 == cmd_head.wr)
|
|||
|
|
{
|
|||
|
|
//memcpy(IC_TYPE, cmd_head.data, cmd_head.data_len);
|
|||
|
|
}
|
|||
|
|
else if (7 == cmd_head.wr)//disable irq!
|
|||
|
|
{
|
|||
|
|
gtp_irq_disable(i2c_get_clientdata(gt_client));
|
|||
|
|
|
|||
|
|
#if GTP_ESD_PROTECT
|
|||
|
|
gtp_esd_switch(gt_client, SWITCH_OFF);
|
|||
|
|
#endif
|
|||
|
|
}
|
|||
|
|
else if (9 == cmd_head.wr) //enable irq!
|
|||
|
|
{
|
|||
|
|
gtp_irq_enable(i2c_get_clientdata(gt_client));
|
|||
|
|
|
|||
|
|
#if GTP_ESD_PROTECT
|
|||
|
|
gtp_esd_switch(gt_client, SWITCH_ON);
|
|||
|
|
#endif
|
|||
|
|
}
|
|||
|
|
else if(17 == cmd_head.wr)
|
|||
|
|
{
|
|||
|
|
struct goodix_ts_data *ts = i2c_get_clientdata(gt_client);
|
|||
|
|
ret = copy_from_user(&cmd_head.data[GTP_ADDR_LENGTH], &buff[CMD_HEAD_LENGTH], cmd_head.data_len);
|
|||
|
|
if(ret)
|
|||
|
|
{
|
|||
|
|
GTP_DEBUG("copy_from_user failed.");
|
|||
|
|
return -EPERM;
|
|||
|
|
}
|
|||
|
|
if(cmd_head.data[GTP_ADDR_LENGTH])
|
|||
|
|
{
|
|||
|
|
GTP_INFO("gtp enter rawdiff.");
|
|||
|
|
ts->gtp_rawdiff_mode = true;
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
ts->gtp_rawdiff_mode = false;
|
|||
|
|
GTP_INFO("gtp leave rawdiff.");
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
#ifdef UPDATE_FUNCTIONS
|
|||
|
|
else if (11 == cmd_head.wr)//Enter update mode!
|
|||
|
|
{
|
|||
|
|
if (FAIL == gup_enter_update_mode(gt_client))
|
|||
|
|
{
|
|||
|
|
return -EPERM;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else if (13 == cmd_head.wr)//Leave update mode!
|
|||
|
|
{
|
|||
|
|
gup_leave_update_mode();
|
|||
|
|
}
|
|||
|
|
else if (15 == cmd_head.wr) //Update firmware!
|
|||
|
|
{
|
|||
|
|
show_len = 0;
|
|||
|
|
total_len = 0;
|
|||
|
|
memset(cmd_head.data, 0, cmd_head.data_len + 1);
|
|||
|
|
memcpy(cmd_head.data, &buff[CMD_HEAD_LENGTH], cmd_head.data_len);
|
|||
|
|
|
|||
|
|
if (FAIL == gup_update_proc((void*)cmd_head.data))
|
|||
|
|
{
|
|||
|
|
return -EPERM;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
return len;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*******************************************************
|
|||
|
|
Function:
|
|||
|
|
Goodix tool read function.
|
|||
|
|
Input:
|
|||
|
|
standard proc read function param.
|
|||
|
|
Output:
|
|||
|
|
Return read length.
|
|||
|
|
********************************************************/
|
|||
|
|
//static s32 goodix_tool_read( char *page, char **start, off_t off, int count, int *eof, void *data )
|
|||
|
|
ssize_t goodix_tool_read(struct file *file, char __user *page, size_t size, loff_t *ppos)
|
|||
|
|
{
|
|||
|
|
s32 ret = 0;
|
|||
|
|
|
|||
|
|
GTP_DEBUG_FUNC();
|
|||
|
|
|
|||
|
|
if (*ppos) // ADB call again
|
|||
|
|
{
|
|||
|
|
//GTP_DEBUG("[HEAD]wr: %d", cmd_head.wr);
|
|||
|
|
//GTP_DEBUG("[PARAM]size: %d, *ppos: %d", size, (int)*ppos);
|
|||
|
|
//GTP_DEBUG("[TOOL_READ]ADB call again, return it.");
|
|||
|
|
return 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (cmd_head.wr % 2)
|
|||
|
|
{
|
|||
|
|
return -EPERM;
|
|||
|
|
}
|
|||
|
|
else if (!cmd_head.wr)
|
|||
|
|
{
|
|||
|
|
u16 len = 0;
|
|||
|
|
s16 data_len = 0;
|
|||
|
|
u16 loc = 0;
|
|||
|
|
|
|||
|
|
if (1 == cmd_head.flag)
|
|||
|
|
{
|
|||
|
|
if (FAIL == comfirm())
|
|||
|
|
{
|
|||
|
|
GTP_ERROR("[READ]Comfirm fail!");
|
|||
|
|
return -EPERM;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else if (2 == cmd_head.flag)
|
|||
|
|
{
|
|||
|
|
//Need interrupt!
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
memcpy(cmd_head.data, cmd_head.addr, cmd_head.addr_len);
|
|||
|
|
|
|||
|
|
GTP_DEBUG("[CMD HEAD DATA] ADDR:0x%02x%02x.", cmd_head.data[0], cmd_head.data[1]);
|
|||
|
|
GTP_DEBUG("[CMD HEAD ADDR] ADDR:0x%02x%02x.", cmd_head.addr[0], cmd_head.addr[1]);
|
|||
|
|
|
|||
|
|
if (cmd_head.delay)
|
|||
|
|
{
|
|||
|
|
msleep(cmd_head.delay);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
data_len = cmd_head.data_len;
|
|||
|
|
|
|||
|
|
while(data_len > 0)
|
|||
|
|
{
|
|||
|
|
if (data_len > DATA_LENGTH)
|
|||
|
|
{
|
|||
|
|
len = DATA_LENGTH;
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
len = data_len;
|
|||
|
|
}
|
|||
|
|
data_len -= len;
|
|||
|
|
|
|||
|
|
if (tool_i2c_read(cmd_head.data, len) <= 0)
|
|||
|
|
{
|
|||
|
|
GTP_ERROR("[READ]Read data failed!");
|
|||
|
|
return -EPERM;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
//memcpy(&page[loc], &cmd_head.data[GTP_ADDR_LENGTH], len);
|
|||
|
|
ret = simple_read_from_buffer(&page[loc], size, ppos, &cmd_head.data[GTP_ADDR_LENGTH], len);
|
|||
|
|
if (ret < 0)
|
|||
|
|
{
|
|||
|
|
return ret;
|
|||
|
|
}
|
|||
|
|
loc += len;
|
|||
|
|
|
|||
|
|
GTP_DEBUG_ARRAY(&cmd_head.data[GTP_ADDR_LENGTH], len);
|
|||
|
|
GTP_DEBUG_ARRAY(page, len);
|
|||
|
|
}
|
|||
|
|
return cmd_head.data_len;
|
|||
|
|
}
|
|||
|
|
else if (2 == cmd_head.wr)
|
|||
|
|
{
|
|||
|
|
ret = simple_read_from_buffer(page, size, ppos, IC_TYPE, sizeof(IC_TYPE));
|
|||
|
|
return ret;
|
|||
|
|
}
|
|||
|
|
else if (4 == cmd_head.wr)
|
|||
|
|
{
|
|||
|
|
u8 progress_buf[4];
|
|||
|
|
progress_buf[0] = show_len >> 8;
|
|||
|
|
progress_buf[1] = show_len & 0xff;
|
|||
|
|
progress_buf[2] = total_len >> 8;
|
|||
|
|
progress_buf[3] = total_len & 0xff;
|
|||
|
|
|
|||
|
|
ret = simple_read_from_buffer(page, size, ppos, progress_buf, 4);
|
|||
|
|
return ret;
|
|||
|
|
}
|
|||
|
|
else if (6 == cmd_head.wr)
|
|||
|
|
{
|
|||
|
|
//Read error code!
|
|||
|
|
}
|
|||
|
|
else if (8 == cmd_head.wr) //Read driver version
|
|||
|
|
{
|
|||
|
|
ret = simple_read_from_buffer(page, size, ppos, GTP_DRIVER_VERSION, strlen(GTP_DRIVER_VERSION));
|
|||
|
|
return ret;
|
|||
|
|
}
|
|||
|
|
return -EPERM;
|
|||
|
|
}
|