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https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-08 17:18:05 -04:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
288
drivers/input/misc/gp2ap002a00f.c
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288
drivers/input/misc/gp2ap002a00f.c
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/*
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* Copyright (C) 2011 Sony Ericsson Mobile Communications Inc.
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*
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* Author: Courtney Cavin <courtney.cavin@sonyericsson.com>
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* Prepared for up-stream by: Oskar Andero <oskar.andero@sonyericsson.com>
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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 version 2, as
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* published by the Free Software Foundation.
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*/
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#include <linux/i2c.h>
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#include <linux/irq.h>
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#include <linux/slab.h>
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#include <linux/input.h>
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/gpio.h>
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#include <linux/delay.h>
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#include <linux/input/gp2ap002a00f.h>
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struct gp2a_data {
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struct input_dev *input;
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const struct gp2a_platform_data *pdata;
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struct i2c_client *i2c_client;
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};
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enum gp2a_addr {
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GP2A_ADDR_PROX = 0x0,
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GP2A_ADDR_GAIN = 0x1,
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GP2A_ADDR_HYS = 0x2,
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GP2A_ADDR_CYCLE = 0x3,
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GP2A_ADDR_OPMOD = 0x4,
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GP2A_ADDR_CON = 0x6
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};
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enum gp2a_controls {
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/* Software Shutdown control: 0 = shutdown, 1 = normal operation */
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GP2A_CTRL_SSD = 0x01
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};
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static int gp2a_report(struct gp2a_data *dt)
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{
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int vo = gpio_get_value(dt->pdata->vout_gpio);
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input_report_switch(dt->input, SW_FRONT_PROXIMITY, !vo);
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input_sync(dt->input);
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return 0;
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}
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static irqreturn_t gp2a_irq(int irq, void *handle)
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{
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struct gp2a_data *dt = handle;
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gp2a_report(dt);
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return IRQ_HANDLED;
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}
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static int gp2a_enable(struct gp2a_data *dt)
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{
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return i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_OPMOD,
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GP2A_CTRL_SSD);
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}
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static int gp2a_disable(struct gp2a_data *dt)
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{
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return i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_OPMOD,
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0x00);
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}
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static int gp2a_device_open(struct input_dev *dev)
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{
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struct gp2a_data *dt = input_get_drvdata(dev);
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int error;
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error = gp2a_enable(dt);
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if (error < 0) {
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dev_err(&dt->i2c_client->dev,
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"unable to activate, err %d\n", error);
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return error;
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}
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gp2a_report(dt);
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return 0;
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}
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static void gp2a_device_close(struct input_dev *dev)
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{
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struct gp2a_data *dt = input_get_drvdata(dev);
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int error;
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error = gp2a_disable(dt);
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if (error < 0)
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dev_err(&dt->i2c_client->dev,
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"unable to deactivate, err %d\n", error);
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}
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static int gp2a_initialize(struct gp2a_data *dt)
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{
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int error;
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error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_GAIN,
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0x08);
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if (error < 0)
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return error;
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error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_HYS,
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0xc2);
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if (error < 0)
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return error;
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error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_CYCLE,
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0x04);
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if (error < 0)
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return error;
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error = gp2a_disable(dt);
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return error;
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}
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static int gp2a_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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const struct gp2a_platform_data *pdata = dev_get_platdata(&client->dev);
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struct gp2a_data *dt;
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int error;
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if (!pdata)
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return -EINVAL;
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if (pdata->hw_setup) {
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error = pdata->hw_setup(client);
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if (error < 0)
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return error;
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}
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error = gpio_request_one(pdata->vout_gpio, GPIOF_IN, GP2A_I2C_NAME);
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if (error)
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goto err_hw_shutdown;
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dt = kzalloc(sizeof(struct gp2a_data), GFP_KERNEL);
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if (!dt) {
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error = -ENOMEM;
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goto err_free_gpio;
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}
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dt->pdata = pdata;
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dt->i2c_client = client;
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error = gp2a_initialize(dt);
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if (error < 0)
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goto err_free_mem;
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dt->input = input_allocate_device();
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if (!dt->input) {
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error = -ENOMEM;
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goto err_free_mem;
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}
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input_set_drvdata(dt->input, dt);
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dt->input->open = gp2a_device_open;
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dt->input->close = gp2a_device_close;
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dt->input->name = GP2A_I2C_NAME;
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dt->input->id.bustype = BUS_I2C;
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dt->input->dev.parent = &client->dev;
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input_set_capability(dt->input, EV_SW, SW_FRONT_PROXIMITY);
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error = request_threaded_irq(client->irq, NULL, gp2a_irq,
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IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |
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IRQF_ONESHOT,
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GP2A_I2C_NAME, dt);
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if (error) {
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dev_err(&client->dev, "irq request failed\n");
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goto err_free_input_dev;
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}
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error = input_register_device(dt->input);
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if (error) {
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dev_err(&client->dev, "device registration failed\n");
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goto err_free_irq;
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}
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device_init_wakeup(&client->dev, pdata->wakeup);
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i2c_set_clientdata(client, dt);
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return 0;
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err_free_irq:
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free_irq(client->irq, dt);
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err_free_input_dev:
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input_free_device(dt->input);
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err_free_mem:
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kfree(dt);
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err_free_gpio:
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gpio_free(pdata->vout_gpio);
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err_hw_shutdown:
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if (pdata->hw_shutdown)
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pdata->hw_shutdown(client);
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return error;
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}
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static int gp2a_remove(struct i2c_client *client)
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{
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struct gp2a_data *dt = i2c_get_clientdata(client);
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const struct gp2a_platform_data *pdata = dt->pdata;
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device_init_wakeup(&client->dev, false);
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free_irq(client->irq, dt);
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input_unregister_device(dt->input);
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kfree(dt);
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gpio_free(pdata->vout_gpio);
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if (pdata->hw_shutdown)
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pdata->hw_shutdown(client);
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return 0;
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}
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#ifdef CONFIG_PM_SLEEP
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static int gp2a_suspend(struct device *dev)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct gp2a_data *dt = i2c_get_clientdata(client);
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int retval = 0;
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if (device_may_wakeup(&client->dev)) {
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enable_irq_wake(client->irq);
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} else {
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mutex_lock(&dt->input->mutex);
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if (dt->input->users)
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retval = gp2a_disable(dt);
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mutex_unlock(&dt->input->mutex);
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}
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return retval;
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}
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static int gp2a_resume(struct device *dev)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct gp2a_data *dt = i2c_get_clientdata(client);
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int retval = 0;
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if (device_may_wakeup(&client->dev)) {
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disable_irq_wake(client->irq);
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} else {
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mutex_lock(&dt->input->mutex);
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if (dt->input->users)
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retval = gp2a_enable(dt);
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mutex_unlock(&dt->input->mutex);
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}
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return retval;
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}
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#endif
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static SIMPLE_DEV_PM_OPS(gp2a_pm, gp2a_suspend, gp2a_resume);
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static const struct i2c_device_id gp2a_i2c_id[] = {
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{ GP2A_I2C_NAME, 0 },
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{ }
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};
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static struct i2c_driver gp2a_i2c_driver = {
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.driver = {
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.name = GP2A_I2C_NAME,
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.owner = THIS_MODULE,
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.pm = &gp2a_pm,
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},
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.probe = gp2a_probe,
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.remove = gp2a_remove,
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.id_table = gp2a_i2c_id,
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};
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module_i2c_driver(gp2a_i2c_driver);
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MODULE_AUTHOR("Courtney Cavin <courtney.cavin@sonyericsson.com>");
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MODULE_DESCRIPTION("Sharp GP2AP002A00F I2C Proximity/Opto sensor driver");
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MODULE_LICENSE("GPL v2");
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