mirror of
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
672
drivers/input/keyboard/adp5588-keys.c
Normal file
672
drivers/input/keyboard/adp5588-keys.c
Normal file
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@ -0,0 +1,672 @@
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/*
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* File: drivers/input/keyboard/adp5588_keys.c
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* Description: keypad driver for ADP5588 and ADP5587
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* I2C QWERTY Keypad and IO Expander
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* Bugs: Enter bugs at http://blackfin.uclinux.org/
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*
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* Copyright (C) 2008-2010 Analog Devices Inc.
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* Licensed under the GPL-2 or later.
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*/
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/workqueue.h>
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#include <linux/errno.h>
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#include <linux/pm.h>
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#include <linux/platform_device.h>
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#include <linux/input.h>
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#include <linux/i2c.h>
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#include <linux/gpio.h>
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#include <linux/slab.h>
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#include <linux/i2c/adp5588.h>
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/* Key Event Register xy */
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#define KEY_EV_PRESSED (1 << 7)
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#define KEY_EV_MASK (0x7F)
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#define KP_SEL(x) (0xFFFF >> (16 - x)) /* 2^x-1 */
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#define KEYP_MAX_EVENT 10
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/*
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* Early pre 4.0 Silicon required to delay readout by at least 25ms,
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* since the Event Counter Register updated 25ms after the interrupt
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* asserted.
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*/
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#define WA_DELAYED_READOUT_REVID(rev) ((rev) < 4)
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struct adp5588_kpad {
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struct i2c_client *client;
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struct input_dev *input;
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struct delayed_work work;
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unsigned long delay;
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unsigned short keycode[ADP5588_KEYMAPSIZE];
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const struct adp5588_gpi_map *gpimap;
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unsigned short gpimapsize;
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#ifdef CONFIG_GPIOLIB
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unsigned char gpiomap[ADP5588_MAXGPIO];
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bool export_gpio;
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struct gpio_chip gc;
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struct mutex gpio_lock; /* Protect cached dir, dat_out */
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u8 dat_out[3];
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u8 dir[3];
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#endif
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};
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static int adp5588_read(struct i2c_client *client, u8 reg)
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{
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int ret = i2c_smbus_read_byte_data(client, reg);
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if (ret < 0)
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dev_err(&client->dev, "Read Error\n");
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return ret;
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}
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static int adp5588_write(struct i2c_client *client, u8 reg, u8 val)
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{
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return i2c_smbus_write_byte_data(client, reg, val);
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}
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#ifdef CONFIG_GPIOLIB
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static int adp5588_gpio_get_value(struct gpio_chip *chip, unsigned off)
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{
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struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
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unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
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unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
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int val;
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mutex_lock(&kpad->gpio_lock);
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if (kpad->dir[bank] & bit)
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val = kpad->dat_out[bank];
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else
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val = adp5588_read(kpad->client, GPIO_DAT_STAT1 + bank);
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mutex_unlock(&kpad->gpio_lock);
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return !!(val & bit);
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}
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static void adp5588_gpio_set_value(struct gpio_chip *chip,
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unsigned off, int val)
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{
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struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
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unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
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unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
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mutex_lock(&kpad->gpio_lock);
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if (val)
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kpad->dat_out[bank] |= bit;
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else
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kpad->dat_out[bank] &= ~bit;
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adp5588_write(kpad->client, GPIO_DAT_OUT1 + bank,
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kpad->dat_out[bank]);
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mutex_unlock(&kpad->gpio_lock);
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}
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static int adp5588_gpio_direction_input(struct gpio_chip *chip, unsigned off)
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{
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struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
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unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
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unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
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int ret;
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mutex_lock(&kpad->gpio_lock);
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kpad->dir[bank] &= ~bit;
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ret = adp5588_write(kpad->client, GPIO_DIR1 + bank, kpad->dir[bank]);
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mutex_unlock(&kpad->gpio_lock);
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return ret;
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}
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static int adp5588_gpio_direction_output(struct gpio_chip *chip,
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unsigned off, int val)
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{
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struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
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unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
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unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
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int ret;
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mutex_lock(&kpad->gpio_lock);
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kpad->dir[bank] |= bit;
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if (val)
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kpad->dat_out[bank] |= bit;
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else
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kpad->dat_out[bank] &= ~bit;
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ret = adp5588_write(kpad->client, GPIO_DAT_OUT1 + bank,
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kpad->dat_out[bank]);
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ret |= adp5588_write(kpad->client, GPIO_DIR1 + bank,
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kpad->dir[bank]);
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mutex_unlock(&kpad->gpio_lock);
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return ret;
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}
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static int adp5588_build_gpiomap(struct adp5588_kpad *kpad,
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const struct adp5588_kpad_platform_data *pdata)
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{
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bool pin_used[ADP5588_MAXGPIO];
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int n_unused = 0;
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int i;
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memset(pin_used, 0, sizeof(pin_used));
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for (i = 0; i < pdata->rows; i++)
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pin_used[i] = true;
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for (i = 0; i < pdata->cols; i++)
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pin_used[i + GPI_PIN_COL_BASE - GPI_PIN_BASE] = true;
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for (i = 0; i < kpad->gpimapsize; i++)
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pin_used[kpad->gpimap[i].pin - GPI_PIN_BASE] = true;
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for (i = 0; i < ADP5588_MAXGPIO; i++)
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if (!pin_used[i])
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kpad->gpiomap[n_unused++] = i;
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return n_unused;
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}
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static int adp5588_gpio_add(struct adp5588_kpad *kpad)
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{
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struct device *dev = &kpad->client->dev;
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const struct adp5588_kpad_platform_data *pdata = dev_get_platdata(dev);
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const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
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int i, error;
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if (!gpio_data)
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return 0;
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kpad->gc.ngpio = adp5588_build_gpiomap(kpad, pdata);
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if (kpad->gc.ngpio == 0) {
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dev_info(dev, "No unused gpios left to export\n");
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return 0;
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}
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kpad->export_gpio = true;
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kpad->gc.direction_input = adp5588_gpio_direction_input;
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kpad->gc.direction_output = adp5588_gpio_direction_output;
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kpad->gc.get = adp5588_gpio_get_value;
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kpad->gc.set = adp5588_gpio_set_value;
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kpad->gc.can_sleep = 1;
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kpad->gc.base = gpio_data->gpio_start;
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kpad->gc.label = kpad->client->name;
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kpad->gc.owner = THIS_MODULE;
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kpad->gc.names = gpio_data->names;
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mutex_init(&kpad->gpio_lock);
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error = gpiochip_add(&kpad->gc);
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if (error) {
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dev_err(dev, "gpiochip_add failed, err: %d\n", error);
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return error;
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}
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for (i = 0; i <= ADP5588_BANK(ADP5588_MAXGPIO); i++) {
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kpad->dat_out[i] = adp5588_read(kpad->client,
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GPIO_DAT_OUT1 + i);
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kpad->dir[i] = adp5588_read(kpad->client, GPIO_DIR1 + i);
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}
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if (gpio_data->setup) {
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error = gpio_data->setup(kpad->client,
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kpad->gc.base, kpad->gc.ngpio,
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gpio_data->context);
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if (error)
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dev_warn(dev, "setup failed, %d\n", error);
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}
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return 0;
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}
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static void adp5588_gpio_remove(struct adp5588_kpad *kpad)
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{
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struct device *dev = &kpad->client->dev;
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const struct adp5588_kpad_platform_data *pdata = dev_get_platdata(dev);
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const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
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int error;
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if (!kpad->export_gpio)
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return;
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if (gpio_data->teardown) {
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error = gpio_data->teardown(kpad->client,
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kpad->gc.base, kpad->gc.ngpio,
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gpio_data->context);
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if (error)
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dev_warn(dev, "teardown failed %d\n", error);
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}
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gpiochip_remove(&kpad->gc);
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}
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#else
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static inline int adp5588_gpio_add(struct adp5588_kpad *kpad)
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{
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return 0;
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}
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static inline void adp5588_gpio_remove(struct adp5588_kpad *kpad)
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{
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}
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#endif
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static void adp5588_report_events(struct adp5588_kpad *kpad, int ev_cnt)
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{
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int i, j;
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for (i = 0; i < ev_cnt; i++) {
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int key = adp5588_read(kpad->client, Key_EVENTA + i);
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int key_val = key & KEY_EV_MASK;
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if (key_val >= GPI_PIN_BASE && key_val <= GPI_PIN_END) {
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for (j = 0; j < kpad->gpimapsize; j++) {
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if (key_val == kpad->gpimap[j].pin) {
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input_report_switch(kpad->input,
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kpad->gpimap[j].sw_evt,
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key & KEY_EV_PRESSED);
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break;
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}
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}
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} else {
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input_report_key(kpad->input,
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kpad->keycode[key_val - 1],
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key & KEY_EV_PRESSED);
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}
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}
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}
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static void adp5588_work(struct work_struct *work)
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{
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struct adp5588_kpad *kpad = container_of(work,
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struct adp5588_kpad, work.work);
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struct i2c_client *client = kpad->client;
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int status, ev_cnt;
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status = adp5588_read(client, INT_STAT);
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if (status & ADP5588_OVR_FLOW_INT) /* Unlikely and should never happen */
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dev_err(&client->dev, "Event Overflow Error\n");
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if (status & ADP5588_KE_INT) {
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ev_cnt = adp5588_read(client, KEY_LCK_EC_STAT) & ADP5588_KEC;
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if (ev_cnt) {
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adp5588_report_events(kpad, ev_cnt);
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input_sync(kpad->input);
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}
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}
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adp5588_write(client, INT_STAT, status); /* Status is W1C */
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}
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static irqreturn_t adp5588_irq(int irq, void *handle)
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{
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struct adp5588_kpad *kpad = handle;
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/*
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* use keventd context to read the event fifo registers
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* Schedule readout at least 25ms after notification for
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* REVID < 4
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*/
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schedule_delayed_work(&kpad->work, kpad->delay);
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return IRQ_HANDLED;
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}
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static int adp5588_setup(struct i2c_client *client)
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{
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const struct adp5588_kpad_platform_data *pdata =
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dev_get_platdata(&client->dev);
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const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
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int i, ret;
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unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
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ret = adp5588_write(client, KP_GPIO1, KP_SEL(pdata->rows));
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ret |= adp5588_write(client, KP_GPIO2, KP_SEL(pdata->cols) & 0xFF);
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ret |= adp5588_write(client, KP_GPIO3, KP_SEL(pdata->cols) >> 8);
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if (pdata->en_keylock) {
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ret |= adp5588_write(client, UNLOCK1, pdata->unlock_key1);
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ret |= adp5588_write(client, UNLOCK2, pdata->unlock_key2);
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ret |= adp5588_write(client, KEY_LCK_EC_STAT, ADP5588_K_LCK_EN);
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}
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for (i = 0; i < KEYP_MAX_EVENT; i++)
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ret |= adp5588_read(client, Key_EVENTA);
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for (i = 0; i < pdata->gpimapsize; i++) {
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unsigned short pin = pdata->gpimap[i].pin;
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if (pin <= GPI_PIN_ROW_END) {
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evt_mode1 |= (1 << (pin - GPI_PIN_ROW_BASE));
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} else {
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evt_mode2 |= ((1 << (pin - GPI_PIN_COL_BASE)) & 0xFF);
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evt_mode3 |= ((1 << (pin - GPI_PIN_COL_BASE)) >> 8);
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}
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}
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if (pdata->gpimapsize) {
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ret |= adp5588_write(client, GPI_EM1, evt_mode1);
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ret |= adp5588_write(client, GPI_EM2, evt_mode2);
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ret |= adp5588_write(client, GPI_EM3, evt_mode3);
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}
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if (gpio_data) {
|
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for (i = 0; i <= ADP5588_BANK(ADP5588_MAXGPIO); i++) {
|
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int pull_mask = gpio_data->pullup_dis_mask;
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ret |= adp5588_write(client, GPIO_PULL1 + i,
|
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(pull_mask >> (8 * i)) & 0xFF);
|
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}
|
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}
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ret |= adp5588_write(client, INT_STAT,
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ADP5588_CMP2_INT | ADP5588_CMP1_INT |
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ADP5588_OVR_FLOW_INT | ADP5588_K_LCK_INT |
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ADP5588_GPI_INT | ADP5588_KE_INT); /* Status is W1C */
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ret |= adp5588_write(client, CFG, ADP5588_INT_CFG |
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ADP5588_OVR_FLOW_IEN |
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ADP5588_KE_IEN);
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||||
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if (ret < 0) {
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dev_err(&client->dev, "Write Error\n");
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return ret;
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}
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|
||||
return 0;
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}
|
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|
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static void adp5588_report_switch_state(struct adp5588_kpad *kpad)
|
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{
|
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int gpi_stat1 = adp5588_read(kpad->client, GPIO_DAT_STAT1);
|
||||
int gpi_stat2 = adp5588_read(kpad->client, GPIO_DAT_STAT2);
|
||||
int gpi_stat3 = adp5588_read(kpad->client, GPIO_DAT_STAT3);
|
||||
int gpi_stat_tmp, pin_loc;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < kpad->gpimapsize; i++) {
|
||||
unsigned short pin = kpad->gpimap[i].pin;
|
||||
|
||||
if (pin <= GPI_PIN_ROW_END) {
|
||||
gpi_stat_tmp = gpi_stat1;
|
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pin_loc = pin - GPI_PIN_ROW_BASE;
|
||||
} else if ((pin - GPI_PIN_COL_BASE) < 8) {
|
||||
gpi_stat_tmp = gpi_stat2;
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pin_loc = pin - GPI_PIN_COL_BASE;
|
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} else {
|
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gpi_stat_tmp = gpi_stat3;
|
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pin_loc = pin - GPI_PIN_COL_BASE - 8;
|
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}
|
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|
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if (gpi_stat_tmp < 0) {
|
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dev_err(&kpad->client->dev,
|
||||
"Can't read GPIO_DAT_STAT switch %d default to OFF\n",
|
||||
pin);
|
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gpi_stat_tmp = 0;
|
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}
|
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|
||||
input_report_switch(kpad->input,
|
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kpad->gpimap[i].sw_evt,
|
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!(gpi_stat_tmp & (1 << pin_loc)));
|
||||
}
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||||
|
||||
input_sync(kpad->input);
|
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}
|
||||
|
||||
|
||||
static int adp5588_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
struct adp5588_kpad *kpad;
|
||||
const struct adp5588_kpad_platform_data *pdata =
|
||||
dev_get_platdata(&client->dev);
|
||||
struct input_dev *input;
|
||||
unsigned int revid;
|
||||
int ret, i;
|
||||
int error;
|
||||
|
||||
if (!i2c_check_functionality(client->adapter,
|
||||
I2C_FUNC_SMBUS_BYTE_DATA)) {
|
||||
dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
if (!pdata) {
|
||||
dev_err(&client->dev, "no platform data?\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (!pdata->rows || !pdata->cols || !pdata->keymap) {
|
||||
dev_err(&client->dev, "no rows, cols or keymap from pdata\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (pdata->keymapsize != ADP5588_KEYMAPSIZE) {
|
||||
dev_err(&client->dev, "invalid keymapsize\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (!pdata->gpimap && pdata->gpimapsize) {
|
||||
dev_err(&client->dev, "invalid gpimap from pdata\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (pdata->gpimapsize > ADP5588_GPIMAPSIZE_MAX) {
|
||||
dev_err(&client->dev, "invalid gpimapsize\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
for (i = 0; i < pdata->gpimapsize; i++) {
|
||||
unsigned short pin = pdata->gpimap[i].pin;
|
||||
|
||||
if (pin < GPI_PIN_BASE || pin > GPI_PIN_END) {
|
||||
dev_err(&client->dev, "invalid gpi pin data\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (pin <= GPI_PIN_ROW_END) {
|
||||
if (pin - GPI_PIN_ROW_BASE + 1 <= pdata->rows) {
|
||||
dev_err(&client->dev, "invalid gpi row data\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
} else {
|
||||
if (pin - GPI_PIN_COL_BASE + 1 <= pdata->cols) {
|
||||
dev_err(&client->dev, "invalid gpi col data\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (!client->irq) {
|
||||
dev_err(&client->dev, "no IRQ?\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
kpad = kzalloc(sizeof(*kpad), GFP_KERNEL);
|
||||
input = input_allocate_device();
|
||||
if (!kpad || !input) {
|
||||
error = -ENOMEM;
|
||||
goto err_free_mem;
|
||||
}
|
||||
|
||||
kpad->client = client;
|
||||
kpad->input = input;
|
||||
INIT_DELAYED_WORK(&kpad->work, adp5588_work);
|
||||
|
||||
ret = adp5588_read(client, DEV_ID);
|
||||
if (ret < 0) {
|
||||
error = ret;
|
||||
goto err_free_mem;
|
||||
}
|
||||
|
||||
revid = (u8) ret & ADP5588_DEVICE_ID_MASK;
|
||||
if (WA_DELAYED_READOUT_REVID(revid))
|
||||
kpad->delay = msecs_to_jiffies(30);
|
||||
|
||||
input->name = client->name;
|
||||
input->phys = "adp5588-keys/input0";
|
||||
input->dev.parent = &client->dev;
|
||||
|
||||
input_set_drvdata(input, kpad);
|
||||
|
||||
input->id.bustype = BUS_I2C;
|
||||
input->id.vendor = 0x0001;
|
||||
input->id.product = 0x0001;
|
||||
input->id.version = revid;
|
||||
|
||||
input->keycodesize = sizeof(kpad->keycode[0]);
|
||||
input->keycodemax = pdata->keymapsize;
|
||||
input->keycode = kpad->keycode;
|
||||
|
||||
memcpy(kpad->keycode, pdata->keymap,
|
||||
pdata->keymapsize * input->keycodesize);
|
||||
|
||||
kpad->gpimap = pdata->gpimap;
|
||||
kpad->gpimapsize = pdata->gpimapsize;
|
||||
|
||||
/* setup input device */
|
||||
__set_bit(EV_KEY, input->evbit);
|
||||
|
||||
if (pdata->repeat)
|
||||
__set_bit(EV_REP, input->evbit);
|
||||
|
||||
for (i = 0; i < input->keycodemax; i++)
|
||||
if (kpad->keycode[i] <= KEY_MAX)
|
||||
__set_bit(kpad->keycode[i], input->keybit);
|
||||
__clear_bit(KEY_RESERVED, input->keybit);
|
||||
|
||||
if (kpad->gpimapsize)
|
||||
__set_bit(EV_SW, input->evbit);
|
||||
for (i = 0; i < kpad->gpimapsize; i++)
|
||||
__set_bit(kpad->gpimap[i].sw_evt, input->swbit);
|
||||
|
||||
error = input_register_device(input);
|
||||
if (error) {
|
||||
dev_err(&client->dev, "unable to register input device\n");
|
||||
goto err_free_mem;
|
||||
}
|
||||
|
||||
error = request_irq(client->irq, adp5588_irq,
|
||||
IRQF_TRIGGER_FALLING,
|
||||
client->dev.driver->name, kpad);
|
||||
if (error) {
|
||||
dev_err(&client->dev, "irq %d busy?\n", client->irq);
|
||||
goto err_unreg_dev;
|
||||
}
|
||||
|
||||
error = adp5588_setup(client);
|
||||
if (error)
|
||||
goto err_free_irq;
|
||||
|
||||
if (kpad->gpimapsize)
|
||||
adp5588_report_switch_state(kpad);
|
||||
|
||||
error = adp5588_gpio_add(kpad);
|
||||
if (error)
|
||||
goto err_free_irq;
|
||||
|
||||
device_init_wakeup(&client->dev, 1);
|
||||
i2c_set_clientdata(client, kpad);
|
||||
|
||||
dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq);
|
||||
return 0;
|
||||
|
||||
err_free_irq:
|
||||
free_irq(client->irq, kpad);
|
||||
cancel_delayed_work_sync(&kpad->work);
|
||||
err_unreg_dev:
|
||||
input_unregister_device(input);
|
||||
input = NULL;
|
||||
err_free_mem:
|
||||
input_free_device(input);
|
||||
kfree(kpad);
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
static int adp5588_remove(struct i2c_client *client)
|
||||
{
|
||||
struct adp5588_kpad *kpad = i2c_get_clientdata(client);
|
||||
|
||||
adp5588_write(client, CFG, 0);
|
||||
free_irq(client->irq, kpad);
|
||||
cancel_delayed_work_sync(&kpad->work);
|
||||
input_unregister_device(kpad->input);
|
||||
adp5588_gpio_remove(kpad);
|
||||
kfree(kpad);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
static int adp5588_suspend(struct device *dev)
|
||||
{
|
||||
struct adp5588_kpad *kpad = dev_get_drvdata(dev);
|
||||
struct i2c_client *client = kpad->client;
|
||||
|
||||
disable_irq(client->irq);
|
||||
cancel_delayed_work_sync(&kpad->work);
|
||||
|
||||
if (device_may_wakeup(&client->dev))
|
||||
enable_irq_wake(client->irq);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int adp5588_resume(struct device *dev)
|
||||
{
|
||||
struct adp5588_kpad *kpad = dev_get_drvdata(dev);
|
||||
struct i2c_client *client = kpad->client;
|
||||
|
||||
if (device_may_wakeup(&client->dev))
|
||||
disable_irq_wake(client->irq);
|
||||
|
||||
enable_irq(client->irq);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct dev_pm_ops adp5588_dev_pm_ops = {
|
||||
.suspend = adp5588_suspend,
|
||||
.resume = adp5588_resume,
|
||||
};
|
||||
#endif
|
||||
|
||||
static const struct i2c_device_id adp5588_id[] = {
|
||||
{ "adp5588-keys", 0 },
|
||||
{ "adp5587-keys", 0 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, adp5588_id);
|
||||
|
||||
static struct i2c_driver adp5588_driver = {
|
||||
.driver = {
|
||||
.name = KBUILD_MODNAME,
|
||||
#ifdef CONFIG_PM
|
||||
.pm = &adp5588_dev_pm_ops,
|
||||
#endif
|
||||
},
|
||||
.probe = adp5588_probe,
|
||||
.remove = adp5588_remove,
|
||||
.id_table = adp5588_id,
|
||||
};
|
||||
|
||||
module_i2c_driver(adp5588_driver);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
|
||||
MODULE_DESCRIPTION("ADP5588/87 Keypad driver");
|
||||
Loading…
Add table
Add a link
Reference in a new issue