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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/input/keyboard/adp5588-keys.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/drivers/input/keyboard/adp5588-keys.c')
-rw-r--r--ANDROID_3.4.5/drivers/input/keyboard/adp5588-keys.c660
1 files changed, 0 insertions, 660 deletions
diff --git a/ANDROID_3.4.5/drivers/input/keyboard/adp5588-keys.c b/ANDROID_3.4.5/drivers/input/keyboard/adp5588-keys.c
deleted file mode 100644
index 39ebffac..00000000
--- a/ANDROID_3.4.5/drivers/input/keyboard/adp5588-keys.c
+++ /dev/null
@@ -1,660 +0,0 @@
-/*
- * File: drivers/input/keyboard/adp5588_keys.c
- * Description: keypad driver for ADP5588 and ADP5587
- * I2C QWERTY Keypad and IO Expander
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * Copyright (C) 2008-2010 Analog Devices Inc.
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/workqueue.h>
-#include <linux/errno.h>
-#include <linux/pm.h>
-#include <linux/platform_device.h>
-#include <linux/input.h>
-#include <linux/i2c.h>
-#include <linux/gpio.h>
-#include <linux/slab.h>
-
-#include <linux/i2c/adp5588.h>
-
-/* Key Event Register xy */
-#define KEY_EV_PRESSED (1 << 7)
-#define KEY_EV_MASK (0x7F)
-
-#define KP_SEL(x) (0xFFFF >> (16 - x)) /* 2^x-1 */
-
-#define KEYP_MAX_EVENT 10
-
-/*
- * Early pre 4.0 Silicon required to delay readout by at least 25ms,
- * since the Event Counter Register updated 25ms after the interrupt
- * asserted.
- */
-#define WA_DELAYED_READOUT_REVID(rev) ((rev) < 4)
-
-struct adp5588_kpad {
- struct i2c_client *client;
- struct input_dev *input;
- struct delayed_work work;
- unsigned long delay;
- unsigned short keycode[ADP5588_KEYMAPSIZE];
- const struct adp5588_gpi_map *gpimap;
- unsigned short gpimapsize;
-#ifdef CONFIG_GPIOLIB
- unsigned char gpiomap[ADP5588_MAXGPIO];
- bool export_gpio;
- struct gpio_chip gc;
- struct mutex gpio_lock; /* Protect cached dir, dat_out */
- u8 dat_out[3];
- u8 dir[3];
-#endif
-};
-
-static int adp5588_read(struct i2c_client *client, u8 reg)
-{
- int ret = i2c_smbus_read_byte_data(client, reg);
-
- if (ret < 0)
- dev_err(&client->dev, "Read Error\n");
-
- return ret;
-}
-
-static int adp5588_write(struct i2c_client *client, u8 reg, u8 val)
-{
- return i2c_smbus_write_byte_data(client, reg, val);
-}
-
-#ifdef CONFIG_GPIOLIB
-static int adp5588_gpio_get_value(struct gpio_chip *chip, unsigned off)
-{
- struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
- unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
- unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
-
- return !!(adp5588_read(kpad->client, GPIO_DAT_STAT1 + bank) & bit);
-}
-
-static void adp5588_gpio_set_value(struct gpio_chip *chip,
- unsigned off, int val)
-{
- struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
- unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
- unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
-
- mutex_lock(&kpad->gpio_lock);
-
- if (val)
- kpad->dat_out[bank] |= bit;
- else
- kpad->dat_out[bank] &= ~bit;
-
- adp5588_write(kpad->client, GPIO_DAT_OUT1 + bank,
- kpad->dat_out[bank]);
-
- mutex_unlock(&kpad->gpio_lock);
-}
-
-static int adp5588_gpio_direction_input(struct gpio_chip *chip, unsigned off)
-{
- struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
- unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
- unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
- int ret;
-
- mutex_lock(&kpad->gpio_lock);
-
- kpad->dir[bank] &= ~bit;
- ret = adp5588_write(kpad->client, GPIO_DIR1 + bank, kpad->dir[bank]);
-
- mutex_unlock(&kpad->gpio_lock);
-
- return ret;
-}
-
-static int adp5588_gpio_direction_output(struct gpio_chip *chip,
- unsigned off, int val)
-{
- struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
- unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
- unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
- int ret;
-
- mutex_lock(&kpad->gpio_lock);
-
- kpad->dir[bank] |= bit;
-
- if (val)
- kpad->dat_out[bank] |= bit;
- else
- kpad->dat_out[bank] &= ~bit;
-
- ret = adp5588_write(kpad->client, GPIO_DAT_OUT1 + bank,
- kpad->dat_out[bank]);
- ret |= adp5588_write(kpad->client, GPIO_DIR1 + bank,
- kpad->dir[bank]);
-
- mutex_unlock(&kpad->gpio_lock);
-
- return ret;
-}
-
-static int __devinit adp5588_build_gpiomap(struct adp5588_kpad *kpad,
- const struct adp5588_kpad_platform_data *pdata)
-{
- bool pin_used[ADP5588_MAXGPIO];
- int n_unused = 0;
- int i;
-
- memset(pin_used, 0, sizeof(pin_used));
-
- for (i = 0; i < pdata->rows; i++)
- pin_used[i] = true;
-
- for (i = 0; i < pdata->cols; i++)
- pin_used[i + GPI_PIN_COL_BASE - GPI_PIN_BASE] = true;
-
- for (i = 0; i < kpad->gpimapsize; i++)
- pin_used[kpad->gpimap[i].pin - GPI_PIN_BASE] = true;
-
- for (i = 0; i < ADP5588_MAXGPIO; i++)
- if (!pin_used[i])
- kpad->gpiomap[n_unused++] = i;
-
- return n_unused;
-}
-
-static int __devinit adp5588_gpio_add(struct adp5588_kpad *kpad)
-{
- struct device *dev = &kpad->client->dev;
- const struct adp5588_kpad_platform_data *pdata = dev->platform_data;
- const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
- int i, error;
-
- if (!gpio_data)
- return 0;
-
- kpad->gc.ngpio = adp5588_build_gpiomap(kpad, pdata);
- if (kpad->gc.ngpio == 0) {
- dev_info(dev, "No unused gpios left to export\n");
- return 0;
- }
-
- kpad->export_gpio = true;
-
- kpad->gc.direction_input = adp5588_gpio_direction_input;
- kpad->gc.direction_output = adp5588_gpio_direction_output;
- kpad->gc.get = adp5588_gpio_get_value;
- kpad->gc.set = adp5588_gpio_set_value;
- kpad->gc.can_sleep = 1;
-
- kpad->gc.base = gpio_data->gpio_start;
- kpad->gc.label = kpad->client->name;
- kpad->gc.owner = THIS_MODULE;
-
- mutex_init(&kpad->gpio_lock);
-
- error = gpiochip_add(&kpad->gc);
- if (error) {
- dev_err(dev, "gpiochip_add failed, err: %d\n", error);
- return error;
- }
-
- for (i = 0; i <= ADP5588_BANK(ADP5588_MAXGPIO); i++) {
- kpad->dat_out[i] = adp5588_read(kpad->client,
- GPIO_DAT_OUT1 + i);
- kpad->dir[i] = adp5588_read(kpad->client, GPIO_DIR1 + i);
- }
-
- if (gpio_data->setup) {
- error = gpio_data->setup(kpad->client,
- kpad->gc.base, kpad->gc.ngpio,
- gpio_data->context);
- if (error)
- dev_warn(dev, "setup failed, %d\n", error);
- }
-
- return 0;
-}
-
-static void __devexit adp5588_gpio_remove(struct adp5588_kpad *kpad)
-{
- struct device *dev = &kpad->client->dev;
- const struct adp5588_kpad_platform_data *pdata = dev->platform_data;
- const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
- int error;
-
- if (!kpad->export_gpio)
- return;
-
- if (gpio_data->teardown) {
- error = gpio_data->teardown(kpad->client,
- kpad->gc.base, kpad->gc.ngpio,
- gpio_data->context);
- if (error)
- dev_warn(dev, "teardown failed %d\n", error);
- }
-
- error = gpiochip_remove(&kpad->gc);
- if (error)
- dev_warn(dev, "gpiochip_remove failed %d\n", error);
-}
-#else
-static inline int adp5588_gpio_add(struct adp5588_kpad *kpad)
-{
- return 0;
-}
-
-static inline void adp5588_gpio_remove(struct adp5588_kpad *kpad)
-{
-}
-#endif
-
-static void adp5588_report_events(struct adp5588_kpad *kpad, int ev_cnt)
-{
- int i, j;
-
- for (i = 0; i < ev_cnt; i++) {
- int key = adp5588_read(kpad->client, Key_EVENTA + i);
- int key_val = key & KEY_EV_MASK;
-
- if (key_val >= GPI_PIN_BASE && key_val <= GPI_PIN_END) {
- for (j = 0; j < kpad->gpimapsize; j++) {
- if (key_val == kpad->gpimap[j].pin) {
- input_report_switch(kpad->input,
- kpad->gpimap[j].sw_evt,
- key & KEY_EV_PRESSED);
- break;
- }
- }
- } else {
- input_report_key(kpad->input,
- kpad->keycode[key_val - 1],
- key & KEY_EV_PRESSED);
- }
- }
-}
-
-static void adp5588_work(struct work_struct *work)
-{
- struct adp5588_kpad *kpad = container_of(work,
- struct adp5588_kpad, work.work);
- struct i2c_client *client = kpad->client;
- int status, ev_cnt;
-
- status = adp5588_read(client, INT_STAT);
-
- if (status & ADP5588_OVR_FLOW_INT) /* Unlikely and should never happen */
- dev_err(&client->dev, "Event Overflow Error\n");
-
- if (status & ADP5588_KE_INT) {
- ev_cnt = adp5588_read(client, KEY_LCK_EC_STAT) & ADP5588_KEC;
- if (ev_cnt) {
- adp5588_report_events(kpad, ev_cnt);
- input_sync(kpad->input);
- }
- }
- adp5588_write(client, INT_STAT, status); /* Status is W1C */
-}
-
-static irqreturn_t adp5588_irq(int irq, void *handle)
-{
- struct adp5588_kpad *kpad = handle;
-
- /*
- * use keventd context to read the event fifo registers
- * Schedule readout at least 25ms after notification for
- * REVID < 4
- */
-
- schedule_delayed_work(&kpad->work, kpad->delay);
-
- return IRQ_HANDLED;
-}
-
-static int __devinit adp5588_setup(struct i2c_client *client)
-{
- const struct adp5588_kpad_platform_data *pdata = client->dev.platform_data;
- const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
- int i, ret;
- unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
-
- ret = adp5588_write(client, KP_GPIO1, KP_SEL(pdata->rows));
- ret |= adp5588_write(client, KP_GPIO2, KP_SEL(pdata->cols) & 0xFF);
- ret |= adp5588_write(client, KP_GPIO3, KP_SEL(pdata->cols) >> 8);
-
- if (pdata->en_keylock) {
- ret |= adp5588_write(client, UNLOCK1, pdata->unlock_key1);
- ret |= adp5588_write(client, UNLOCK2, pdata->unlock_key2);
- ret |= adp5588_write(client, KEY_LCK_EC_STAT, ADP5588_K_LCK_EN);
- }
-
- for (i = 0; i < KEYP_MAX_EVENT; i++)
- ret |= adp5588_read(client, Key_EVENTA);
-
- for (i = 0; i < pdata->gpimapsize; i++) {
- unsigned short pin = pdata->gpimap[i].pin;
-
- if (pin <= GPI_PIN_ROW_END) {
- evt_mode1 |= (1 << (pin - GPI_PIN_ROW_BASE));
- } else {
- evt_mode2 |= ((1 << (pin - GPI_PIN_COL_BASE)) & 0xFF);
- evt_mode3 |= ((1 << (pin - GPI_PIN_COL_BASE)) >> 8);
- }
- }
-
- if (pdata->gpimapsize) {
- ret |= adp5588_write(client, GPI_EM1, evt_mode1);
- ret |= adp5588_write(client, GPI_EM2, evt_mode2);
- ret |= adp5588_write(client, GPI_EM3, evt_mode3);
- }
-
- if (gpio_data) {
- for (i = 0; i <= ADP5588_BANK(ADP5588_MAXGPIO); i++) {
- int pull_mask = gpio_data->pullup_dis_mask;
-
- ret |= adp5588_write(client, GPIO_PULL1 + i,
- (pull_mask >> (8 * i)) & 0xFF);
- }
- }
-
- ret |= adp5588_write(client, INT_STAT,
- ADP5588_CMP2_INT | ADP5588_CMP1_INT |
- ADP5588_OVR_FLOW_INT | ADP5588_K_LCK_INT |
- ADP5588_GPI_INT | ADP5588_KE_INT); /* Status is W1C */
-
- ret |= adp5588_write(client, CFG, ADP5588_INT_CFG |
- ADP5588_OVR_FLOW_IEN |
- ADP5588_KE_IEN);
-
- if (ret < 0) {
- dev_err(&client->dev, "Write Error\n");
- return ret;
- }
-
- return 0;
-}
-
-static void __devinit adp5588_report_switch_state(struct adp5588_kpad *kpad)
-{
- 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;
- pin_loc = pin - GPI_PIN_ROW_BASE;
- } else if ((pin - GPI_PIN_COL_BASE) < 8) {
- gpi_stat_tmp = gpi_stat2;
- pin_loc = pin - GPI_PIN_COL_BASE;
- } else {
- gpi_stat_tmp = gpi_stat3;
- pin_loc = pin - GPI_PIN_COL_BASE - 8;
- }
-
- if (gpi_stat_tmp < 0) {
- dev_err(&kpad->client->dev,
- "Can't read GPIO_DAT_STAT switch %d default to OFF\n",
- pin);
- gpi_stat_tmp = 0;
- }
-
- input_report_switch(kpad->input,
- kpad->gpimap[i].sw_evt,
- !(gpi_stat_tmp & (1 << pin_loc)));
- }
-
- input_sync(kpad->input);
-}
-
-
-static int __devinit adp5588_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct adp5588_kpad *kpad;
- const struct adp5588_kpad_platform_data *pdata = client->dev.platform_data;
- 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++)
- __set_bit(kpad->keycode[i] & KEY_MAX, 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);
- err_unreg_dev:
- input_unregister_device(input);
- input = NULL;
- err_free_mem:
- input_free_device(input);
- kfree(kpad);
-
- return error;
-}
-
-static int __devexit 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 = __devexit_p(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");