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Diffstat (limited to 'ANDROID_3.4.5/drivers/input/keyboard/omap4-keypad.c')
-rw-r--r--ANDROID_3.4.5/drivers/input/keyboard/omap4-keypad.c343
1 files changed, 0 insertions, 343 deletions
diff --git a/ANDROID_3.4.5/drivers/input/keyboard/omap4-keypad.c b/ANDROID_3.4.5/drivers/input/keyboard/omap4-keypad.c
deleted file mode 100644
index e809ac09..00000000
--- a/ANDROID_3.4.5/drivers/input/keyboard/omap4-keypad.c
+++ /dev/null
@@ -1,343 +0,0 @@
-/*
- * OMAP4 Keypad Driver
- *
- * Copyright (C) 2010 Texas Instruments
- *
- * Author: Abraham Arce <x0066660@ti.com>
- * Initial Code: Syed Rafiuddin <rafiuddin.syed@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <linux/errno.h>
-#include <linux/io.h>
-#include <linux/input.h>
-#include <linux/slab.h>
-#include <linux/pm_runtime.h>
-
-#include <linux/platform_data/omap4-keypad.h>
-
-/* OMAP4 registers */
-#define OMAP4_KBD_REVISION 0x00
-#define OMAP4_KBD_SYSCONFIG 0x10
-#define OMAP4_KBD_SYSSTATUS 0x14
-#define OMAP4_KBD_IRQSTATUS 0x18
-#define OMAP4_KBD_IRQENABLE 0x1C
-#define OMAP4_KBD_WAKEUPENABLE 0x20
-#define OMAP4_KBD_PENDING 0x24
-#define OMAP4_KBD_CTRL 0x28
-#define OMAP4_KBD_DEBOUNCINGTIME 0x2C
-#define OMAP4_KBD_LONGKEYTIME 0x30
-#define OMAP4_KBD_TIMEOUT 0x34
-#define OMAP4_KBD_STATEMACHINE 0x38
-#define OMAP4_KBD_ROWINPUTS 0x3C
-#define OMAP4_KBD_COLUMNOUTPUTS 0x40
-#define OMAP4_KBD_FULLCODE31_0 0x44
-#define OMAP4_KBD_FULLCODE63_32 0x48
-
-/* OMAP4 bit definitions */
-#define OMAP4_DEF_IRQENABLE_EVENTEN (1 << 0)
-#define OMAP4_DEF_IRQENABLE_LONGKEY (1 << 1)
-#define OMAP4_DEF_IRQENABLE_TIMEOUTEN (1 << 2)
-#define OMAP4_DEF_WUP_EVENT_ENA (1 << 0)
-#define OMAP4_DEF_WUP_LONG_KEY_ENA (1 << 1)
-#define OMAP4_DEF_CTRL_NOSOFTMODE (1 << 1)
-#define OMAP4_DEF_CTRLPTVVALUE (1 << 2)
-#define OMAP4_DEF_CTRLPTV (1 << 1)
-
-/* OMAP4 values */
-#define OMAP4_VAL_IRQDISABLE 0x00
-#define OMAP4_VAL_DEBOUNCINGTIME 0x07
-#define OMAP4_VAL_FUNCTIONALCFG 0x1E
-
-#define OMAP4_MASK_IRQSTATUSDISABLE 0xFFFF
-
-struct omap4_keypad {
- struct input_dev *input;
-
- void __iomem *base;
- int irq;
-
- unsigned int rows;
- unsigned int cols;
- unsigned int row_shift;
- unsigned char key_state[8];
- unsigned short keymap[];
-};
-
-/* Interrupt handler */
-static irqreturn_t omap4_keypad_interrupt(int irq, void *dev_id)
-{
- struct omap4_keypad *keypad_data = dev_id;
- struct input_dev *input_dev = keypad_data->input;
- unsigned char key_state[ARRAY_SIZE(keypad_data->key_state)];
- unsigned int col, row, code, changed;
- u32 *new_state = (u32 *) key_state;
-
- /* Disable interrupts */
- __raw_writel(OMAP4_VAL_IRQDISABLE,
- keypad_data->base + OMAP4_KBD_IRQENABLE);
-
- *new_state = __raw_readl(keypad_data->base + OMAP4_KBD_FULLCODE31_0);
- *(new_state + 1) = __raw_readl(keypad_data->base
- + OMAP4_KBD_FULLCODE63_32);
-
- for (row = 0; row < keypad_data->rows; row++) {
- changed = key_state[row] ^ keypad_data->key_state[row];
- if (!changed)
- continue;
-
- for (col = 0; col < keypad_data->cols; col++) {
- if (changed & (1 << col)) {
- code = MATRIX_SCAN_CODE(row, col,
- keypad_data->row_shift);
- input_event(input_dev, EV_MSC, MSC_SCAN, code);
- input_report_key(input_dev,
- keypad_data->keymap[code],
- key_state[row] & (1 << col));
- }
- }
- }
-
- input_sync(input_dev);
-
- memcpy(keypad_data->key_state, key_state,
- sizeof(keypad_data->key_state));
-
- /* clear pending interrupts */
- __raw_writel(__raw_readl(keypad_data->base + OMAP4_KBD_IRQSTATUS),
- keypad_data->base + OMAP4_KBD_IRQSTATUS);
-
- /* enable interrupts */
- __raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
- keypad_data->base + OMAP4_KBD_IRQENABLE);
-
- return IRQ_HANDLED;
-}
-
-static int omap4_keypad_open(struct input_dev *input)
-{
- struct omap4_keypad *keypad_data = input_get_drvdata(input);
-
- pm_runtime_get_sync(input->dev.parent);
-
- disable_irq(keypad_data->irq);
-
- __raw_writel(OMAP4_VAL_FUNCTIONALCFG,
- keypad_data->base + OMAP4_KBD_CTRL);
- __raw_writel(OMAP4_VAL_DEBOUNCINGTIME,
- keypad_data->base + OMAP4_KBD_DEBOUNCINGTIME);
- __raw_writel(OMAP4_VAL_IRQDISABLE,
- keypad_data->base + OMAP4_KBD_IRQSTATUS);
- __raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
- keypad_data->base + OMAP4_KBD_IRQENABLE);
- __raw_writel(OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA,
- keypad_data->base + OMAP4_KBD_WAKEUPENABLE);
-
- enable_irq(keypad_data->irq);
-
- return 0;
-}
-
-static void omap4_keypad_close(struct input_dev *input)
-{
- struct omap4_keypad *keypad_data = input_get_drvdata(input);
-
- disable_irq(keypad_data->irq);
-
- /* Disable interrupts */
- __raw_writel(OMAP4_VAL_IRQDISABLE,
- keypad_data->base + OMAP4_KBD_IRQENABLE);
-
- /* clear pending interrupts */
- __raw_writel(__raw_readl(keypad_data->base + OMAP4_KBD_IRQSTATUS),
- keypad_data->base + OMAP4_KBD_IRQSTATUS);
-
- enable_irq(keypad_data->irq);
-
- pm_runtime_put_sync(input->dev.parent);
-}
-
-static int __devinit omap4_keypad_probe(struct platform_device *pdev)
-{
- const struct omap4_keypad_platform_data *pdata;
- struct omap4_keypad *keypad_data;
- struct input_dev *input_dev;
- struct resource *res;
- resource_size_t size;
- unsigned int row_shift, max_keys;
- int irq;
- int error;
-
- /* platform data */
- pdata = pdev->dev.platform_data;
- if (!pdata) {
- dev_err(&pdev->dev, "no platform data defined\n");
- return -EINVAL;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "no base address specified\n");
- return -EINVAL;
- }
-
- irq = platform_get_irq(pdev, 0);
- if (!irq) {
- dev_err(&pdev->dev, "no keyboard irq assigned\n");
- return -EINVAL;
- }
-
- if (!pdata->keymap_data) {
- dev_err(&pdev->dev, "no keymap data defined\n");
- return -EINVAL;
- }
-
- row_shift = get_count_order(pdata->cols);
- max_keys = pdata->rows << row_shift;
-
- keypad_data = kzalloc(sizeof(struct omap4_keypad) +
- max_keys * sizeof(keypad_data->keymap[0]),
- GFP_KERNEL);
- if (!keypad_data) {
- dev_err(&pdev->dev, "keypad_data memory allocation failed\n");
- return -ENOMEM;
- }
-
- size = resource_size(res);
-
- res = request_mem_region(res->start, size, pdev->name);
- if (!res) {
- dev_err(&pdev->dev, "can't request mem region\n");
- error = -EBUSY;
- goto err_free_keypad;
- }
-
- keypad_data->base = ioremap(res->start, resource_size(res));
- if (!keypad_data->base) {
- dev_err(&pdev->dev, "can't ioremap mem resource\n");
- error = -ENOMEM;
- goto err_release_mem;
- }
-
- keypad_data->irq = irq;
- keypad_data->row_shift = row_shift;
- keypad_data->rows = pdata->rows;
- keypad_data->cols = pdata->cols;
-
- /* input device allocation */
- keypad_data->input = input_dev = input_allocate_device();
- if (!input_dev) {
- error = -ENOMEM;
- goto err_unmap;
- }
-
- input_dev->name = pdev->name;
- input_dev->dev.parent = &pdev->dev;
- input_dev->id.bustype = BUS_HOST;
- input_dev->id.vendor = 0x0001;
- input_dev->id.product = 0x0001;
- input_dev->id.version = 0x0001;
-
- input_dev->open = omap4_keypad_open;
- input_dev->close = omap4_keypad_close;
-
- input_dev->keycode = keypad_data->keymap;
- input_dev->keycodesize = sizeof(keypad_data->keymap[0]);
- input_dev->keycodemax = max_keys;
-
- __set_bit(EV_KEY, input_dev->evbit);
- __set_bit(EV_REP, input_dev->evbit);
-
- input_set_capability(input_dev, EV_MSC, MSC_SCAN);
-
- input_set_drvdata(input_dev, keypad_data);
-
- matrix_keypad_build_keymap(pdata->keymap_data, row_shift,
- input_dev->keycode, input_dev->keybit);
-
- error = request_irq(keypad_data->irq, omap4_keypad_interrupt,
- IRQF_TRIGGER_RISING,
- "omap4-keypad", keypad_data);
- if (error) {
- dev_err(&pdev->dev, "failed to register interrupt\n");
- goto err_free_input;
- }
-
- pm_runtime_enable(&pdev->dev);
-
- error = input_register_device(keypad_data->input);
- if (error < 0) {
- dev_err(&pdev->dev, "failed to register input device\n");
- goto err_pm_disable;
- }
-
- platform_set_drvdata(pdev, keypad_data);
- return 0;
-
-err_pm_disable:
- pm_runtime_disable(&pdev->dev);
- free_irq(keypad_data->irq, keypad_data);
-err_free_input:
- input_free_device(input_dev);
-err_unmap:
- iounmap(keypad_data->base);
-err_release_mem:
- release_mem_region(res->start, size);
-err_free_keypad:
- kfree(keypad_data);
- return error;
-}
-
-static int __devexit omap4_keypad_remove(struct platform_device *pdev)
-{
- struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
- struct resource *res;
-
- free_irq(keypad_data->irq, keypad_data);
-
- pm_runtime_disable(&pdev->dev);
-
- input_unregister_device(keypad_data->input);
-
- iounmap(keypad_data->base);
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(res->start, resource_size(res));
-
- kfree(keypad_data);
- platform_set_drvdata(pdev, NULL);
-
- return 0;
-}
-
-static struct platform_driver omap4_keypad_driver = {
- .probe = omap4_keypad_probe,
- .remove = __devexit_p(omap4_keypad_remove),
- .driver = {
- .name = "omap4-keypad",
- .owner = THIS_MODULE,
- },
-};
-module_platform_driver(omap4_keypad_driver);
-
-MODULE_AUTHOR("Texas Instruments");
-MODULE_DESCRIPTION("OMAP4 Keypad Driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:omap4-keypad");