143 lines
3.5 KiB
C
Executable File
143 lines
3.5 KiB
C
Executable File
#ifdef __KERNEL__
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/fs.h>
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#include <linux/interrupt.h>
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#include <linux/vmalloc.h>
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#include <linux/moduleparam.h>
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#include <linux/platform_device.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/sched.h>
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#include <linux/io.h>
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#include <linux/of_device.h>
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#include <linux/kdev_t.h>
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#include <linux/clk.h>
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#include <linux/mm.h>
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#include <kwrap/dev.h>
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#include <linux/module.h>
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#include <linux/miscdevice.h>
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#include <linux/ioctl.h>
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#include <linux/uaccess.h>
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#include "touch_gt911.h"
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#define MALLOC(x) kzalloc((x), GFP_KERNEL)
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#define FREE(x) kfree((x))
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#else
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#include "touch_gt911.h"
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#include <stdlib.h>
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#include <string.h>
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#define MALLOC(x) malloc((x))
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#define FREE(x) free((x))
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#endif
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#define __MODULE__ touch_i2c
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#define __DBGLVL__ 2 // 0=FATAL, 1=ERR, 2=WRN, 3=UNIT, 4=FUNC, 5=IND, 6=MSG, 7=VALUE, 8=USER
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#define __DBGFLT__ "*" // *=All, [mark]=CustomClass
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#include "kwrap/debug.h"
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static struct i2c_board_info touch_i2c_device = {
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.type = TOUCH_I2C_NAME,
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.addr = TOUCH_I2C_ADDR,
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};
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typedef struct {
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struct i2c_client *iic_client;
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struct i2c_adapter *iic_adapter;
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} TOUCH_I2C_INFO;
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static TOUCH_I2C_INFO *touch_i2c_info;
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static const struct i2c_device_id touch_i2c_id[] = {
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{ TOUCH_I2C_NAME, 0 },
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{ }
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};
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static int touch_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
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{
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touch_i2c_info = NULL;
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touch_i2c_info = MALLOC(sizeof(TOUCH_I2C_INFO));
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if (touch_i2c_info == NULL) {
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DBG_ERR("%s fail: MALLOC not OK.\n", __FUNCTION__);
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return E_SYS;
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}
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touch_i2c_info->iic_client = client;
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touch_i2c_info->iic_adapter = client->adapter;
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i2c_set_clientdata(client, touch_i2c_info);
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//printk(KERN_ERR "touch_i2c_probe!\r\n");
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DBG_IND("touch_i2c_probe!\r\n");
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return 0;
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}
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static int touch_i2c_remove(struct i2c_client *client)
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{
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FREE(touch_i2c_info);
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touch_i2c_info = NULL;
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//printk(KERN_ERR "touch_i2c_remove!\r\n");
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DBG_IND("touch_i2c_remove!\r\n");
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return 0;
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}
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static struct i2c_driver touch_i2c_driver = {
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.driver = {
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.name = TOUCH_I2C_NAME,
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.owner = THIS_MODULE,
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},
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.probe = touch_i2c_probe,
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.remove = touch_i2c_remove,
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.id_table = touch_i2c_id
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};
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ER touch_i2c_init_driver(UINT32 i2c_id)
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{
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ER ret = E_OK;
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if (i2c_new_device(i2c_get_adapter(i2c_id), &touch_i2c_device) == NULL) {
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DBG_ERR("%s fail: i2c_new_device not OK.\n", __FUNCTION__);
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//printk(KERN_ERR "%s fail: i2c_new_device not OK.\n", __FUNCTION__);
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}
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if (i2c_add_driver(&touch_i2c_driver) != 0) {
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DBG_ERR("%s fail: i2c_add_driver not OK.\n", __FUNCTION__);
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//printk(KERN_ERR "%s fail: i2c_add_driver not OK.\n", __FUNCTION__);
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}
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return ret;
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}
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void touch_i2c_remove_driver(UINT32 id)
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{
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i2c_unregister_device(touch_i2c_info->iic_client);
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i2c_del_driver(&touch_i2c_driver);
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}
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INT32 touch_i2c_transfer(struct i2c_msg *msgs, INT32 num)
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{
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int ret;
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if (unlikely(touch_i2c_info->iic_adapter == NULL)) {
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DBG_ERR("%s fail: touch_i2c_info->ii2c_adapter not OK\n", __FUNCTION__);
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//printk(KERN_ERR "%s fail: pmu_i2c_info->ii2c_adapter not OK\n", __FUNCTION__);
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return -1;
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}
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#if 0
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if (unlikely(i2c_transfer(touch_i2c_info->iic_adapter, msgs, num) != num)) {
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DBG_ERR("%s fail: i2c_transfer not OK \n", __FUNCTION__);
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return -1;
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}
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#else
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ret = i2c_transfer(touch_i2c_info->iic_adapter, msgs, num);
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if (ret != num) {
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DBG_ERR("%s fail: i2c_transfer not OK, ret %d\n", __FUNCTION__, ret);
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//printk(KERN_ERR "%s fail: i2c_transfer not OK, ret %d\n", __FUNCTION__, ret);
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return -1;
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}
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#endif
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return 0;
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}
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