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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/omap-keypad.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/omap-keypad.c')
-rw-r--r--ANDROID_3.4.5/drivers/input/keyboard/omap-keypad.c481
1 files changed, 0 insertions, 481 deletions
diff --git a/ANDROID_3.4.5/drivers/input/keyboard/omap-keypad.c b/ANDROID_3.4.5/drivers/input/keyboard/omap-keypad.c
deleted file mode 100644
index 6b630d9d..00000000
--- a/ANDROID_3.4.5/drivers/input/keyboard/omap-keypad.c
+++ /dev/null
@@ -1,481 +0,0 @@
-/*
- * linux/drivers/input/keyboard/omap-keypad.c
- *
- * OMAP Keypad Driver
- *
- * Copyright (C) 2003 Nokia Corporation
- * Written by Timo Teräs <ext-timo.teras@nokia.com>
- *
- * Added support for H2 & H3 Keypad
- * Copyright (C) 2004 Texas Instruments
- *
- * 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/types.h>
-#include <linux/input.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/mutex.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <asm/gpio.h>
-#include <plat/keypad.h>
-#include <plat/menelaus.h>
-#include <asm/irq.h>
-#include <mach/hardware.h>
-#include <asm/io.h>
-#include <plat/mux.h>
-
-#undef NEW_BOARD_LEARNING_MODE
-
-static void omap_kp_tasklet(unsigned long);
-static void omap_kp_timer(unsigned long);
-
-static unsigned char keypad_state[8];
-static DEFINE_MUTEX(kp_enable_mutex);
-static int kp_enable = 1;
-static int kp_cur_group = -1;
-
-struct omap_kp {
- struct input_dev *input;
- struct timer_list timer;
- int irq;
- unsigned int rows;
- unsigned int cols;
- unsigned long delay;
- unsigned int debounce;
-};
-
-static DECLARE_TASKLET_DISABLED(kp_tasklet, omap_kp_tasklet, 0);
-
-static unsigned int *row_gpios;
-static unsigned int *col_gpios;
-
-#ifdef CONFIG_ARCH_OMAP2
-static void set_col_gpio_val(struct omap_kp *omap_kp, u8 value)
-{
- int col;
-
- for (col = 0; col < omap_kp->cols; col++)
- gpio_set_value(col_gpios[col], value & (1 << col));
-}
-
-static u8 get_row_gpio_val(struct omap_kp *omap_kp)
-{
- int row;
- u8 value = 0;
-
- for (row = 0; row < omap_kp->rows; row++) {
- if (gpio_get_value(row_gpios[row]))
- value |= (1 << row);
- }
- return value;
-}
-#else
-#define set_col_gpio_val(x, y) do {} while (0)
-#define get_row_gpio_val(x) 0
-#endif
-
-static irqreturn_t omap_kp_interrupt(int irq, void *dev_id)
-{
- struct omap_kp *omap_kp = dev_id;
-
- /* disable keyboard interrupt and schedule for handling */
- if (cpu_is_omap24xx()) {
- int i;
-
- for (i = 0; i < omap_kp->rows; i++) {
- int gpio_irq = gpio_to_irq(row_gpios[i]);
- /*
- * The interrupt which we're currently handling should
- * be disabled _nosync() to avoid deadlocks waiting
- * for this handler to complete. All others should
- * be disabled the regular way for SMP safety.
- */
- if (gpio_irq == irq)
- disable_irq_nosync(gpio_irq);
- else
- disable_irq(gpio_irq);
- }
- } else
- /* disable keyboard interrupt and schedule for handling */
- omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
-
- tasklet_schedule(&kp_tasklet);
-
- return IRQ_HANDLED;
-}
-
-static void omap_kp_timer(unsigned long data)
-{
- tasklet_schedule(&kp_tasklet);
-}
-
-static void omap_kp_scan_keypad(struct omap_kp *omap_kp, unsigned char *state)
-{
- int col = 0;
-
- /* read the keypad status */
- if (cpu_is_omap24xx()) {
- /* read the keypad status */
- for (col = 0; col < omap_kp->cols; col++) {
- set_col_gpio_val(omap_kp, ~(1 << col));
- state[col] = ~(get_row_gpio_val(omap_kp)) & 0xff;
- }
- set_col_gpio_val(omap_kp, 0);
-
- } else {
- /* disable keyboard interrupt and schedule for handling */
- omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
-
- /* read the keypad status */
- omap_writew(0xff, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
- for (col = 0; col < omap_kp->cols; col++) {
- omap_writew(~(1 << col) & 0xff,
- OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
-
- udelay(omap_kp->delay);
-
- state[col] = ~omap_readw(OMAP1_MPUIO_BASE +
- OMAP_MPUIO_KBR_LATCH) & 0xff;
- }
- omap_writew(0x00, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
- udelay(2);
- }
-}
-
-static void omap_kp_tasklet(unsigned long data)
-{
- struct omap_kp *omap_kp_data = (struct omap_kp *) data;
- unsigned short *keycodes = omap_kp_data->input->keycode;
- unsigned int row_shift = get_count_order(omap_kp_data->cols);
- unsigned char new_state[8], changed, key_down = 0;
- int col, row;
- int spurious = 0;
-
- /* check for any changes */
- omap_kp_scan_keypad(omap_kp_data, new_state);
-
- /* check for changes and print those */
- for (col = 0; col < omap_kp_data->cols; col++) {
- changed = new_state[col] ^ keypad_state[col];
- key_down |= new_state[col];
- if (changed == 0)
- continue;
-
- for (row = 0; row < omap_kp_data->rows; row++) {
- int key;
- if (!(changed & (1 << row)))
- continue;
-#ifdef NEW_BOARD_LEARNING_MODE
- printk(KERN_INFO "omap-keypad: key %d-%d %s\n", col,
- row, (new_state[col] & (1 << row)) ?
- "pressed" : "released");
-#else
- key = keycodes[MATRIX_SCAN_CODE(row, col, row_shift)];
- if (key < 0) {
- printk(KERN_WARNING
- "omap-keypad: Spurious key event %d-%d\n",
- col, row);
- /* We scan again after a couple of seconds */
- spurious = 1;
- continue;
- }
-
- if (!(kp_cur_group == (key & GROUP_MASK) ||
- kp_cur_group == -1))
- continue;
-
- kp_cur_group = key & GROUP_MASK;
- input_report_key(omap_kp_data->input, key & ~GROUP_MASK,
- new_state[col] & (1 << row));
-#endif
- }
- }
- input_sync(omap_kp_data->input);
- memcpy(keypad_state, new_state, sizeof(keypad_state));
-
- if (key_down) {
- int delay = HZ / 20;
- /* some key is pressed - keep irq disabled and use timer
- * to poll the keypad */
- if (spurious)
- delay = 2 * HZ;
- mod_timer(&omap_kp_data->timer, jiffies + delay);
- } else {
- /* enable interrupts */
- if (cpu_is_omap24xx()) {
- int i;
- for (i = 0; i < omap_kp_data->rows; i++)
- enable_irq(gpio_to_irq(row_gpios[i]));
- } else {
- omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
- kp_cur_group = -1;
- }
- }
-}
-
-static ssize_t omap_kp_enable_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return sprintf(buf, "%u\n", kp_enable);
-}
-
-static ssize_t omap_kp_enable_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- int state;
-
- if (sscanf(buf, "%u", &state) != 1)
- return -EINVAL;
-
- if ((state != 1) && (state != 0))
- return -EINVAL;
-
- mutex_lock(&kp_enable_mutex);
- if (state != kp_enable) {
- if (state)
- enable_irq(INT_KEYBOARD);
- else
- disable_irq(INT_KEYBOARD);
- kp_enable = state;
- }
- mutex_unlock(&kp_enable_mutex);
-
- return strnlen(buf, count);
-}
-
-static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, omap_kp_enable_show, omap_kp_enable_store);
-
-#ifdef CONFIG_PM
-static int omap_kp_suspend(struct platform_device *dev, pm_message_t state)
-{
- /* Nothing yet */
-
- return 0;
-}
-
-static int omap_kp_resume(struct platform_device *dev)
-{
- /* Nothing yet */
-
- return 0;
-}
-#else
-#define omap_kp_suspend NULL
-#define omap_kp_resume NULL
-#endif
-
-static int __devinit omap_kp_probe(struct platform_device *pdev)
-{
- struct omap_kp *omap_kp;
- struct input_dev *input_dev;
- struct omap_kp_platform_data *pdata = pdev->dev.platform_data;
- int i, col_idx, row_idx, irq_idx, ret;
- unsigned int row_shift, keycodemax;
-
- if (!pdata->rows || !pdata->cols || !pdata->keymap_data) {
- printk(KERN_ERR "No rows, cols or keymap_data from pdata\n");
- return -EINVAL;
- }
-
- row_shift = get_count_order(pdata->cols);
- keycodemax = pdata->rows << row_shift;
-
- omap_kp = kzalloc(sizeof(struct omap_kp) +
- keycodemax * sizeof(unsigned short), GFP_KERNEL);
- input_dev = input_allocate_device();
- if (!omap_kp || !input_dev) {
- kfree(omap_kp);
- input_free_device(input_dev);
- return -ENOMEM;
- }
-
- platform_set_drvdata(pdev, omap_kp);
-
- omap_kp->input = input_dev;
-
- /* Disable the interrupt for the MPUIO keyboard */
- if (!cpu_is_omap24xx())
- omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
-
- input_dev->keycode = &omap_kp[1];
- input_dev->keycodesize = sizeof(unsigned short);
- input_dev->keycodemax = keycodemax;
-
- if (pdata->rep)
- __set_bit(EV_REP, input_dev->evbit);
-
- if (pdata->delay)
- omap_kp->delay = pdata->delay;
-
- if (pdata->row_gpios && pdata->col_gpios) {
- row_gpios = pdata->row_gpios;
- col_gpios = pdata->col_gpios;
- }
-
- omap_kp->rows = pdata->rows;
- omap_kp->cols = pdata->cols;
-
- if (cpu_is_omap24xx()) {
- /* Cols: outputs */
- for (col_idx = 0; col_idx < omap_kp->cols; col_idx++) {
- if (gpio_request(col_gpios[col_idx], "omap_kp_col") < 0) {
- printk(KERN_ERR "Failed to request"
- "GPIO%d for keypad\n",
- col_gpios[col_idx]);
- goto err1;
- }
- gpio_direction_output(col_gpios[col_idx], 0);
- }
- /* Rows: inputs */
- for (row_idx = 0; row_idx < omap_kp->rows; row_idx++) {
- if (gpio_request(row_gpios[row_idx], "omap_kp_row") < 0) {
- printk(KERN_ERR "Failed to request"
- "GPIO%d for keypad\n",
- row_gpios[row_idx]);
- goto err2;
- }
- gpio_direction_input(row_gpios[row_idx]);
- }
- } else {
- col_idx = 0;
- row_idx = 0;
- }
-
- setup_timer(&omap_kp->timer, omap_kp_timer, (unsigned long)omap_kp);
-
- /* get the irq and init timer*/
- tasklet_enable(&kp_tasklet);
- kp_tasklet.data = (unsigned long) omap_kp;
-
- ret = device_create_file(&pdev->dev, &dev_attr_enable);
- if (ret < 0)
- goto err2;
-
- /* setup input device */
- __set_bit(EV_KEY, input_dev->evbit);
- matrix_keypad_build_keymap(pdata->keymap_data, row_shift,
- input_dev->keycode, input_dev->keybit);
- input_dev->name = "omap-keypad";
- input_dev->phys = "omap-keypad/input0";
- 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 = 0x0100;
-
- ret = input_register_device(omap_kp->input);
- if (ret < 0) {
- printk(KERN_ERR "Unable to register omap-keypad input device\n");
- goto err3;
- }
-
- if (pdata->dbounce)
- omap_writew(0xff, OMAP1_MPUIO_BASE + OMAP_MPUIO_GPIO_DEBOUNCING);
-
- /* scan current status and enable interrupt */
- omap_kp_scan_keypad(omap_kp, keypad_state);
- if (!cpu_is_omap24xx()) {
- omap_kp->irq = platform_get_irq(pdev, 0);
- if (omap_kp->irq >= 0) {
- if (request_irq(omap_kp->irq, omap_kp_interrupt, 0,
- "omap-keypad", omap_kp) < 0)
- goto err4;
- }
- omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
- } else {
- for (irq_idx = 0; irq_idx < omap_kp->rows; irq_idx++) {
- if (request_irq(gpio_to_irq(row_gpios[irq_idx]),
- omap_kp_interrupt,
- IRQF_TRIGGER_FALLING,
- "omap-keypad", omap_kp) < 0)
- goto err5;
- }
- }
- return 0;
-err5:
- for (i = irq_idx - 1; i >=0; i--)
- free_irq(row_gpios[i], omap_kp);
-err4:
- input_unregister_device(omap_kp->input);
- input_dev = NULL;
-err3:
- device_remove_file(&pdev->dev, &dev_attr_enable);
-err2:
- for (i = row_idx - 1; i >=0; i--)
- gpio_free(row_gpios[i]);
-err1:
- for (i = col_idx - 1; i >=0; i--)
- gpio_free(col_gpios[i]);
-
- kfree(omap_kp);
- input_free_device(input_dev);
-
- return -EINVAL;
-}
-
-static int __devexit omap_kp_remove(struct platform_device *pdev)
-{
- struct omap_kp *omap_kp = platform_get_drvdata(pdev);
-
- /* disable keypad interrupt handling */
- tasklet_disable(&kp_tasklet);
- if (cpu_is_omap24xx()) {
- int i;
- for (i = 0; i < omap_kp->cols; i++)
- gpio_free(col_gpios[i]);
- for (i = 0; i < omap_kp->rows; i++) {
- gpio_free(row_gpios[i]);
- free_irq(gpio_to_irq(row_gpios[i]), omap_kp);
- }
- } else {
- omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
- free_irq(omap_kp->irq, omap_kp);
- }
-
- del_timer_sync(&omap_kp->timer);
- tasklet_kill(&kp_tasklet);
-
- /* unregister everything */
- input_unregister_device(omap_kp->input);
-
- kfree(omap_kp);
-
- return 0;
-}
-
-static struct platform_driver omap_kp_driver = {
- .probe = omap_kp_probe,
- .remove = __devexit_p(omap_kp_remove),
- .suspend = omap_kp_suspend,
- .resume = omap_kp_resume,
- .driver = {
- .name = "omap-keypad",
- .owner = THIS_MODULE,
- },
-};
-module_platform_driver(omap_kp_driver);
-
-MODULE_AUTHOR("Timo Teräs");
-MODULE_DESCRIPTION("OMAP Keypad Driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:omap-keypad");