diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/input/keyboard/adp5520-keys.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/input/keyboard/adp5520-keys.c | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/ANDROID_3.4.5/drivers/input/keyboard/adp5520-keys.c b/ANDROID_3.4.5/drivers/input/keyboard/adp5520-keys.c deleted file mode 100644 index e9e8674d..00000000 --- a/ANDROID_3.4.5/drivers/input/keyboard/adp5520-keys.c +++ /dev/null @@ -1,210 +0,0 @@ -/* - * Keypad driver for Analog Devices ADP5520 MFD PMICs - * - * Copyright 2009 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/input.h> -#include <linux/mfd/adp5520.h> -#include <linux/slab.h> - -struct adp5520_keys { - struct input_dev *input; - struct notifier_block notifier; - struct device *master; - unsigned short keycode[ADP5520_KEYMAPSIZE]; -}; - -static void adp5520_keys_report_event(struct adp5520_keys *dev, - unsigned short keymask, int value) -{ - int i; - - for (i = 0; i < ADP5520_MAXKEYS; i++) - if (keymask & (1 << i)) - input_report_key(dev->input, dev->keycode[i], value); - - input_sync(dev->input); -} - -static int adp5520_keys_notifier(struct notifier_block *nb, - unsigned long event, void *data) -{ - struct adp5520_keys *dev; - uint8_t reg_val_lo, reg_val_hi; - unsigned short keymask; - - dev = container_of(nb, struct adp5520_keys, notifier); - - if (event & ADP5520_KP_INT) { - adp5520_read(dev->master, ADP5520_KP_INT_STAT_1, ®_val_lo); - adp5520_read(dev->master, ADP5520_KP_INT_STAT_2, ®_val_hi); - - keymask = (reg_val_hi << 8) | reg_val_lo; - /* Read twice to clear */ - adp5520_read(dev->master, ADP5520_KP_INT_STAT_1, ®_val_lo); - adp5520_read(dev->master, ADP5520_KP_INT_STAT_2, ®_val_hi); - keymask |= (reg_val_hi << 8) | reg_val_lo; - adp5520_keys_report_event(dev, keymask, 1); - } - - if (event & ADP5520_KR_INT) { - adp5520_read(dev->master, ADP5520_KR_INT_STAT_1, ®_val_lo); - adp5520_read(dev->master, ADP5520_KR_INT_STAT_2, ®_val_hi); - - keymask = (reg_val_hi << 8) | reg_val_lo; - /* Read twice to clear */ - adp5520_read(dev->master, ADP5520_KR_INT_STAT_1, ®_val_lo); - adp5520_read(dev->master, ADP5520_KR_INT_STAT_2, ®_val_hi); - keymask |= (reg_val_hi << 8) | reg_val_lo; - adp5520_keys_report_event(dev, keymask, 0); - } - - return 0; -} - -static int __devinit adp5520_keys_probe(struct platform_device *pdev) -{ - struct adp5520_keys_platform_data *pdata = pdev->dev.platform_data; - struct input_dev *input; - struct adp5520_keys *dev; - int ret, i; - unsigned char en_mask, ctl_mask = 0; - - if (pdev->id != ID_ADP5520) { - dev_err(&pdev->dev, "only ADP5520 supports Keypad\n"); - return -EINVAL; - } - - if (pdata == NULL) { - dev_err(&pdev->dev, "missing platform data\n"); - return -EINVAL; - } - - if (!(pdata->rows_en_mask && pdata->cols_en_mask)) - return -EINVAL; - - dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (dev == NULL) { - dev_err(&pdev->dev, "failed to alloc memory\n"); - return -ENOMEM; - } - - input = input_allocate_device(); - if (!input) { - ret = -ENOMEM; - goto err; - } - - dev->master = pdev->dev.parent; - dev->input = input; - - input->name = pdev->name; - input->phys = "adp5520-keys/input0"; - input->dev.parent = &pdev->dev; - - input_set_drvdata(input, dev); - - input->id.bustype = BUS_I2C; - input->id.vendor = 0x0001; - input->id.product = 0x5520; - input->id.version = 0x0001; - - input->keycodesize = sizeof(dev->keycode[0]); - input->keycodemax = pdata->keymapsize; - input->keycode = dev->keycode; - - memcpy(dev->keycode, pdata->keymap, - pdata->keymapsize * input->keycodesize); - - /* 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(dev->keycode[i], input->keybit); - __clear_bit(KEY_RESERVED, input->keybit); - - ret = input_register_device(input); - if (ret) { - dev_err(&pdev->dev, "unable to register input device\n"); - goto err; - } - - en_mask = pdata->rows_en_mask | pdata->cols_en_mask; - - ret = adp5520_set_bits(dev->master, ADP5520_GPIO_CFG_1, en_mask); - - if (en_mask & ADP5520_COL_C3) - ctl_mask |= ADP5520_C3_MODE; - - if (en_mask & ADP5520_ROW_R3) - ctl_mask |= ADP5520_R3_MODE; - - if (ctl_mask) - ret |= adp5520_set_bits(dev->master, ADP5520_LED_CONTROL, - ctl_mask); - - ret |= adp5520_set_bits(dev->master, ADP5520_GPIO_PULLUP, - pdata->rows_en_mask); - - if (ret) { - dev_err(&pdev->dev, "failed to write\n"); - ret = -EIO; - goto err1; - } - - dev->notifier.notifier_call = adp5520_keys_notifier; - ret = adp5520_register_notifier(dev->master, &dev->notifier, - ADP5520_KP_IEN | ADP5520_KR_IEN); - if (ret) { - dev_err(&pdev->dev, "failed to register notifier\n"); - goto err1; - } - - platform_set_drvdata(pdev, dev); - return 0; - -err1: - input_unregister_device(input); - input = NULL; -err: - input_free_device(input); - kfree(dev); - return ret; -} - -static int __devexit adp5520_keys_remove(struct platform_device *pdev) -{ - struct adp5520_keys *dev = platform_get_drvdata(pdev); - - adp5520_unregister_notifier(dev->master, &dev->notifier, - ADP5520_KP_IEN | ADP5520_KR_IEN); - - input_unregister_device(dev->input); - kfree(dev); - return 0; -} - -static struct platform_driver adp5520_keys_driver = { - .driver = { - .name = "adp5520-keys", - .owner = THIS_MODULE, - }, - .probe = adp5520_keys_probe, - .remove = __devexit_p(adp5520_keys_remove), -}; -module_platform_driver(adp5520_keys_driver); - -MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>"); -MODULE_DESCRIPTION("Keys ADP5520 Driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:adp5520-keys"); |