/* SPDX-License-Identifier: GPL-2.0 */
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/proc_fs.h>
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#include <linux/fs.h>
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#include <linux/uaccess.h>
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#include <linux/i2c.h>
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#include <linux/interrupt.h>
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#include "vtl_ts.h"
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#include "chip.h"
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#define APK_ITOUCH 0x01
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#define INVALID 0x00
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#define HW_RESET_CMD 0x01
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#define CHIP_INFO_CMD 0x02
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#define DRIVER_INFO_CMD 0x03
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#define CHIP_ID_CMD 0x04
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#define WRITE_CHIP_CMD 0x05
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#define READ_CHIP_CMD 0x06
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#define RECOVERY_CMD 0x07
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#define INTERRUPT_CMD 0x08
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#define READ_CHECKSUM_CMD 0x09
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#define READ_FWCHECKSUM_CMD 0x0a
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#define XY_DEBUG_CMD 0x0b
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#define LINUX_SHELL 'c'
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#define SHELL_CHECKSUM_CMD '1'
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#define SHELL_UPDATE_CMD '2'
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#define SHELL_DEBUG_CMD '3'
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static struct ts_info * ts_object = NULL;
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/*****************************************************************************
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** Function define
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*****************************************************************************/
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static int apk_i2c_transfer(struct i2c_client *client,unsigned char i2c_addr,unsigned char len,unsigned char *buf,unsigned char rw)
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{
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struct i2c_msg msgs[1];
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DEBUG();
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msgs[0].flags = rw;
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msgs[0].addr = i2c_addr;
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msgs[0].len = len;
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msgs[0].buf = buf;
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//msgs[0].scl_rate = TS_I2C_SPEED; //only for rockchip
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if(i2c_transfer(client->adapter, msgs, 1)!= 1)
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{
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return -1;
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}
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return 0;
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}
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static int apk_open(struct inode *inode, struct file *file)
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{
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printk("___%s___\n",__func__);
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DEBUG();
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ts_object = vtl_ts_get_object();
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if(ts_object == NULL)
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{
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return -1;
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}
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return 0;
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}
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static int apk_close(struct inode *inode, struct file *file)
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{
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printk("___%s___\n",__func__);
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DEBUG();
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return 0;
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}
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static ssize_t apk_write(struct file *file, const char __user *buff, size_t count, loff_t *offp)
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{
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struct i2c_client *client = ts_object->driver->client;
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unsigned char frame_data[255] = {0};
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int bin_checksum = 0;
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int fw_checksum = 0;
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int ret = 0;
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DEBUG();
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if(copy_from_user(frame_data, buff, count)){
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return -EFAULT;
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}
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if(frame_data[0]==APK_ITOUCH){
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switch(frame_data[1]){
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case HW_RESET_CMD :{
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vtl_ts_hw_reset();
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}break;
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case INTERRUPT_CMD :{
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if(frame_data[4]){
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enable_irq(ts_object->config_info.irq_number);
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}else{
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disable_irq(ts_object->config_info.irq_number);
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}
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}break;
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case RECOVERY_CMD :{
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ret = update(client);
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}break;
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case WRITE_CHIP_CMD:{
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ret = apk_i2c_transfer(client,frame_data[2],frame_data[3],&frame_data[4],0);
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}break;
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case XY_DEBUG_CMD :{
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if(ts_object->debug){
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ts_object->debug = 0x00;
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}else{
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ts_object->debug = 0x01;
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}
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}break;
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default :{
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}break;
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}
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}else if(frame_data[0]==LINUX_SHELL){
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printk("CMD: %s,count = %zu\n",frame_data,count);
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switch(frame_data[1]){
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case SHELL_CHECKSUM_CMD :{
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chip_get_checksum(client,&bin_checksum,&fw_checksum);
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printk("bin_checksum = 0x%x,fw_checksum = 0x%x\n",bin_checksum,fw_checksum);
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}break;
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case SHELL_UPDATE_CMD :{
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chip_update(client);
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}break;
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case SHELL_DEBUG_CMD :{
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if(ts_object->debug){
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ts_object->debug = 0x00;
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}else{
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ts_object->debug = 0x01;
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}
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}break;
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default :{
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}break;
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}
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}else{
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return -1;
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}
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if(ret<0){
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return -1;
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}
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return count;
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}
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static ssize_t apk_read(struct file *file, char __user *buff, size_t count, loff_t *offp)
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{
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struct i2c_client *client = ts_object->driver->client;
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unsigned char frame_data[255];
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int bin_checksum = 0;
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int fw_checksum = 0;
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int len = 0;
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int ret = 0;
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DEBUG();
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if(copy_from_user(frame_data, buff, count))
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{
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return -EFAULT;
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}
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len = frame_data[3];
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if(frame_data[0]==APK_ITOUCH){
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switch(frame_data[1]){
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case DRIVER_INFO_CMD :{
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frame_data[0] = client->addr;
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}break;
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case READ_CHIP_CMD :{
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ret = apk_i2c_transfer(client,frame_data[2],frame_data[3],frame_data,1);
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}break;
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case READ_CHECKSUM_CMD :{
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ret = chip_get_checksum(client,&bin_checksum,&fw_checksum);
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frame_data[0] = bin_checksum & 0x00ff;
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frame_data[1] = bin_checksum >> 8;
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frame_data[2] = fw_checksum & 0x00ff;
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frame_data[3] = fw_checksum >> 8;
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}break;
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case READ_FWCHECKSUM_CMD :{
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ret = chip_get_fwchksum(client,&fw_checksum);
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frame_data[0] = fw_checksum & 0x00ff;
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frame_data[1] = fw_checksum >> 8;
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}break;
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default :{
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}break;
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}
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}
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if(copy_to_user(buff, frame_data,len)){
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return -EFAULT;
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}
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if(ret<0){
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return -1;
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}
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return count;
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}
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struct file_operations apk_fops = {
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.owner = THIS_MODULE,
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.open = apk_open,
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.release = apk_close,
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.write = apk_write,
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.read = apk_read,
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};
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