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-rw-r--r--drivers/input/keyboard/Kconfig29
-rw-r--r--drivers/input/keyboard/Makefile2
-rw-r--r--drivers/input/keyboard/omap-keypad.c41
-rw-r--r--drivers/input/keyboard/spear-keyboard.c344
-rw-r--r--drivers/input/keyboard/tc3589x-keypad.c472
-rw-r--r--drivers/input/keyboard/tca6416-keypad.c13
6 files changed, 872 insertions, 29 deletions
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 3a87f3ba5f7..f829998fabe 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -196,20 +196,22 @@ config KEYBOARD_GPIO_POLLED
module will be called gpio_keys_polled.
config KEYBOARD_TCA6416
- tristate "TCA6416 Keypad Support"
+ tristate "TCA6416/TCA6408A Keypad Support"
depends on I2C
help
This driver implements basic keypad functionality
- for keys connected through TCA6416 IO expander
+ for keys connected through TCA6416/TCA6408A IO expanders.
Say Y here if your device has keys connected to
- TCA6416 IO expander. Your board-specific setup logic
+ TCA6416/TCA6408A IO expander. Your board-specific setup logic
must also provide pin-mask details(of which TCA6416 pins
are used for keypad).
- If enabled the complete TCA6416 device will be managed through
+ If enabled the entire TCA6416 device will be managed through
this driver.
+ To compile this driver as a module, choose M here: the
+ module will be called tca6416_keypad.
config KEYBOARD_MATRIX
tristate "GPIO driven matrix keypad support"
@@ -459,6 +461,25 @@ config KEYBOARD_OMAP4
To compile this driver as a module, choose M here: the
module will be called omap4-keypad.
+config KEYBOARD_SPEAR
+ tristate "ST SPEAR keyboard support"
+ depends on PLAT_SPEAR
+ help
+ Say Y here if you want to use the SPEAR keyboard.
+
+ To compile this driver as a module, choose M here: the
+ module will be called spear-keboard.
+
+config KEYBOARD_TC3589X
+ tristate "TC3589X Keypad support"
+ depends on MFD_TC3589X
+ help
+ Say Y here if you want to use the keypad controller on
+ TC35892/3 I/O expander.
+
+ To compile this driver as a module, choose M here: the
+ module will be called tc3589x-keypad.
+
config KEYBOARD_TNETV107X
tristate "TI TNETV107X keypad support"
depends on ARCH_DAVINCI_TNETV107X
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 622de73a445..8933e9ca938 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -38,9 +38,11 @@ obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o
obj-$(CONFIG_KEYBOARD_QT2160) += qt2160.o
obj-$(CONFIG_KEYBOARD_SAMSUNG) += samsung-keypad.o
obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o
+obj-$(CONFIG_KEYBOARD_SPEAR) += spear-keyboard.o
obj-$(CONFIG_KEYBOARD_STMPE) += stmpe-keypad.o
obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd.o
+obj-$(CONFIG_KEYBOARD_TC3589X) += tc3589x-keypad.o
obj-$(CONFIG_KEYBOARD_TNETV107X) += tnetv107x-keypad.o
obj-$(CONFIG_KEYBOARD_TWL4030) += twl4030_keypad.o
obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o
diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
index a72e61ddca9..0e2a19cb43d 100644
--- a/drivers/input/keyboard/omap-keypad.c
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -65,7 +65,6 @@ struct omap_kp {
static DECLARE_TASKLET_DISABLED(kp_tasklet, omap_kp_tasklet, 0);
-static int *keymap;
static unsigned int *row_gpios;
static unsigned int *col_gpios;
@@ -162,20 +161,11 @@ static void omap_kp_scan_keypad(struct omap_kp *omap_kp, unsigned char *state)
}
}
-static inline int omap_kp_find_key(int col, int row)
-{
- int i, key;
-
- key = KEY(col, row, 0);
- for (i = 0; keymap[i] != 0; i++)
- if ((keymap[i] & 0xff000000) == key)
- return keymap[i] & 0x00ffffff;
- return -1;
-}
-
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;
@@ -199,7 +189,7 @@ static void omap_kp_tasklet(unsigned long data)
row, (new_state[col] & (1 << row)) ?
"pressed" : "released");
#else
- key = omap_kp_find_key(col, row);
+ key = keycodes[MATRIX_SCAN_CODE(row, col, row_shift)];
if (key < 0) {
printk(KERN_WARNING
"omap-keypad: Spurious key event %d-%d\n",
@@ -298,13 +288,18 @@ static int __devinit omap_kp_probe(struct platform_device *pdev)
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) {
- printk(KERN_ERR "No rows, cols or keymap from pdata\n");
+ if (!pdata->rows || !pdata->cols || !pdata->keymap_data) {
+ printk(KERN_ERR "No rows, cols or keymap_data from pdata\n");
return -EINVAL;
}
- omap_kp = kzalloc(sizeof(struct omap_kp), GFP_KERNEL);
+ 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);
@@ -320,7 +315,9 @@ static int __devinit omap_kp_probe(struct platform_device *pdev)
if (!cpu_is_omap24xx())
omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
- keymap = pdata->keymap;
+ 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);
@@ -374,8 +371,8 @@ static int __devinit omap_kp_probe(struct platform_device *pdev)
/* setup input device */
__set_bit(EV_KEY, input_dev->evbit);
- for (i = 0; keymap[i] != 0; i++)
- __set_bit(keymap[i] & KEY_MAX, input_dev->keybit);
+ 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;
@@ -416,7 +413,7 @@ static int __devinit omap_kp_probe(struct platform_device *pdev)
return 0;
err5:
for (i = irq_idx - 1; i >=0; i--)
- free_irq(row_gpios[i], 0);
+ free_irq(row_gpios[i], NULL);
err4:
input_unregister_device(omap_kp->input);
input_dev = NULL;
@@ -447,11 +444,11 @@ static int __devexit omap_kp_remove(struct platform_device *pdev)
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]), 0);
+ free_irq(gpio_to_irq(row_gpios[i]), NULL);
}
} else {
omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
- free_irq(omap_kp->irq, 0);
+ free_irq(omap_kp->irq, NULL);
}
del_timer_sync(&omap_kp->timer);
diff --git a/drivers/input/keyboard/spear-keyboard.c b/drivers/input/keyboard/spear-keyboard.c
new file mode 100644
index 00000000000..bee03d64c45
--- /dev/null
+++ b/drivers/input/keyboard/spear-keyboard.c
@@ -0,0 +1,344 @@
+/*
+ * SPEAr Keyboard Driver
+ * Based on omap-keypad driver
+ *
+ * Copyright (C) 2010 ST Microelectronics
+ * Rajeev Kumar<rajeev-dlh.kumar@st.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/clk.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_wakeup.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <plat/keyboard.h>
+
+/* Keyboard Registers */
+#define MODE_REG 0x00 /* 16 bit reg */
+#define STATUS_REG 0x0C /* 2 bit reg */
+#define DATA_REG 0x10 /* 8 bit reg */
+#define INTR_MASK 0x54
+
+/* Register Values */
+/*
+ * pclk freq mask = (APB FEQ -1)= 82 MHZ.Programme bit 15-9 in mode
+ * control register as 1010010(82MHZ)
+ */
+#define PCLK_FREQ_MSK 0xA400 /* 82 MHz */
+#define START_SCAN 0x0100
+#define SCAN_RATE_10 0x0000
+#define SCAN_RATE_20 0x0004
+#define SCAN_RATE_40 0x0008
+#define SCAN_RATE_80 0x000C
+#define MODE_KEYBOARD 0x0002
+#define DATA_AVAIL 0x2
+
+#define KEY_MASK 0xFF000000
+#define KEY_VALUE 0x00FFFFFF
+#define ROW_MASK 0xF0
+#define COLUMN_MASK 0x0F
+#define ROW_SHIFT 4
+
+struct spear_kbd {
+ struct input_dev *input;
+ struct resource *res;
+ void __iomem *io_base;
+ struct clk *clk;
+ unsigned int irq;
+ unsigned short last_key;
+ unsigned short keycodes[256];
+};
+
+static irqreturn_t spear_kbd_interrupt(int irq, void *dev_id)
+{
+ struct spear_kbd *kbd = dev_id;
+ struct input_dev *input = kbd->input;
+ unsigned int key;
+ u8 sts, val;
+
+ sts = readb(kbd->io_base + STATUS_REG);
+ if (sts & DATA_AVAIL)
+ return IRQ_NONE;
+
+ if (kbd->last_key != KEY_RESERVED) {
+ input_report_key(input, kbd->last_key, 0);
+ kbd->last_key = KEY_RESERVED;
+ }
+
+ /* following reads active (row, col) pair */
+ val = readb(kbd->io_base + DATA_REG);
+ key = kbd->keycodes[val];
+
+ input_event(input, EV_MSC, MSC_SCAN, val);
+ input_report_key(input, key, 1);
+ input_sync(input);
+
+ kbd->last_key = key;
+
+ /* clear interrupt */
+ writeb(0, kbd->io_base + STATUS_REG);
+
+ return IRQ_HANDLED;
+}
+
+static int spear_kbd_open(struct input_dev *dev)
+{
+ struct spear_kbd *kbd = input_get_drvdata(dev);
+ int error;
+ u16 val;
+
+ kbd->last_key = KEY_RESERVED;
+
+ error = clk_enable(kbd->clk);
+ if (error)
+ return error;
+
+ /* program keyboard */
+ val = SCAN_RATE_80 | MODE_KEYBOARD | PCLK_FREQ_MSK;
+ writew(val, kbd->io_base + MODE_REG);
+ writeb(1, kbd->io_base + STATUS_REG);
+
+ /* start key scan */
+ val = readw(kbd->io_base + MODE_REG);
+ val |= START_SCAN;
+ writew(val, kbd->io_base + MODE_REG);
+
+ return 0;
+}
+
+static void spear_kbd_close(struct input_dev *dev)
+{
+ struct spear_kbd *kbd = input_get_drvdata(dev);
+ u16 val;
+
+ /* stop key scan */
+ val = readw(kbd->io_base + MODE_REG);
+ val &= ~START_SCAN;
+ writew(val, kbd->io_base + MODE_REG);
+
+ clk_disable(kbd->clk);
+
+ kbd->last_key = KEY_RESERVED;
+}
+
+static int __devinit spear_kbd_probe(struct platform_device *pdev)
+{
+ const struct kbd_platform_data *pdata = pdev->dev.platform_data;
+ const struct matrix_keymap_data *keymap;
+ struct spear_kbd *kbd;
+ struct input_dev *input_dev;
+ struct resource *res;
+ int irq;
+ int error;
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "Invalid platform data\n");
+ return -EINVAL;
+ }
+
+ keymap = pdata->keymap;
+ if (!keymap) {
+ dev_err(&pdev->dev, "no keymap defined\n");
+ return -EINVAL;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "no keyboard resource defined\n");
+ return -EBUSY;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "not able to get irq for the device\n");
+ return irq;
+ }
+
+ kbd = kzalloc(sizeof(*kbd), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!kbd || !input_dev) {
+ dev_err(&pdev->dev, "out of memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ kbd->input = input_dev;
+ kbd->irq = irq;
+ kbd->res = request_mem_region(res->start, resource_size(res),
+ pdev->name);
+ if (!kbd->res) {
+ dev_err(&pdev->dev, "keyboard region already claimed\n");
+ error = -EBUSY;
+ goto err_free_mem;
+ }
+
+ kbd->io_base = ioremap(res->start, resource_size(res));
+ if (!kbd->io_base) {
+ dev_err(&pdev->dev, "ioremap failed for kbd_region\n");
+ error = -ENOMEM;
+ goto err_release_mem_region;
+ }
+
+ kbd->clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(kbd->clk)) {
+ error = PTR_ERR(kbd->clk);
+ goto err_iounmap;
+ }
+
+ input_dev->name = "Spear Keyboard";
+ input_dev->phys = "keyboard/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;
+ input_dev->open = spear_kbd_open;
+ input_dev->close = spear_kbd_close;
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ if (pdata->rep)
+ __set_bit(EV_REP, input_dev->evbit);
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+
+ input_dev->keycode = kbd->keycodes;
+ input_dev->keycodesize = sizeof(kbd->keycodes[0]);
+ input_dev->keycodemax = ARRAY_SIZE(kbd->keycodes);
+
+ matrix_keypad_build_keymap(keymap, ROW_SHIFT,
+ input_dev->keycode, input_dev->keybit);
+
+ input_set_drvdata(input_dev, kbd);
+
+ error = request_irq(irq, spear_kbd_interrupt, 0, "keyboard", kbd);
+ if (error) {
+ dev_err(&pdev->dev, "request_irq fail\n");
+ goto err_put_clk;
+ }
+
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(&pdev->dev, "Unable to register keyboard device\n");
+ goto err_free_irq;
+ }
+
+ device_init_wakeup(&pdev->dev, 1);
+ platform_set_drvdata(pdev, kbd);
+
+ return 0;
+
+err_free_irq:
+ free_irq(kbd->irq, kbd);
+err_put_clk:
+ clk_put(kbd->clk);
+err_iounmap:
+ iounmap(kbd->io_base);
+err_release_mem_region:
+ release_mem_region(res->start, resource_size(res));
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(kbd);
+
+ return error;
+}
+
+static int __devexit spear_kbd_remove(struct platform_device *pdev)
+{
+ struct spear_kbd *kbd = platform_get_drvdata(pdev);
+
+ free_irq(kbd->irq, kbd);
+ input_unregister_device(kbd->input);
+ clk_put(kbd->clk);
+ iounmap(kbd->io_base);
+ release_mem_region(kbd->res->start, resource_size(kbd->res));
+ kfree(kbd);
+
+ device_init_wakeup(&pdev->dev, 1);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int spear_kbd_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct spear_kbd *kbd = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = kbd->input;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ clk_enable(kbd->clk);
+
+ if (device_may_wakeup(&pdev->dev))
+ enable_irq_wake(kbd->irq);
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+
+static int spear_kbd_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct spear_kbd *kbd = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = kbd->input;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (device_may_wakeup(&pdev->dev))
+ disable_irq_wake(kbd->irq);
+
+ if (input_dev->users)
+ clk_enable(kbd->clk);
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+
+static const struct dev_pm_ops spear_kbd_pm_ops = {
+ .suspend = spear_kbd_suspend,
+ .resume = spear_kbd_resume,
+};
+#endif
+
+static struct platform_driver spear_kbd_driver = {
+ .probe = spear_kbd_probe,
+ .remove = __devexit_p(spear_kbd_remove),
+ .driver = {
+ .name = "keyboard",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &spear_kbd_pm_ops,
+#endif
+ },
+};
+
+static int __init spear_kbd_init(void)
+{
+ return platform_driver_register(&spear_kbd_driver);
+}
+module_init(spear_kbd_init);
+
+static void __exit spear_kbd_exit(void)
+{
+ platform_driver_unregister(&spear_kbd_driver);
+}
+module_exit(spear_kbd_exit);
+
+MODULE_AUTHOR("Rajeev Kumar");
+MODULE_DESCRIPTION("SPEAr Keyboard Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/tc3589x-keypad.c b/drivers/input/keyboard/tc3589x-keypad.c
new file mode 100644
index 00000000000..dbbe761778d
--- /dev/null
+++ b/drivers/input/keyboard/tc3589x-keypad.c
@@ -0,0 +1,472 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Jayeeta Banerjee <jayeeta.banerjee@stericsson.com>
+ * Author: Sundar Iyer <sundar.iyer@stericsson.com>
+ *
+ * License Terms: GNU General Public License, version 2
+ *
+ * TC35893 MFD Keypad Controller driver
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/input/matrix_keypad.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/mfd/tc3589x.h>
+
+/* Maximum supported keypad matrix row/columns size */
+#define TC3589x_MAX_KPROW 8
+#define TC3589x_MAX_KPCOL 12
+
+/* keypad related Constants */
+#define TC3589x_MAX_DEBOUNCE_SETTLE 0xFF
+#define DEDICATED_KEY_VAL 0xFF
+
+/* Pull up/down masks */
+#define TC3589x_NO_PULL_MASK 0x0
+#define TC3589x_PULL_DOWN_MASK 0x1
+#define TC3589x_PULL_UP_MASK 0x2
+#define TC3589x_PULLUP_ALL_MASK 0xAA
+#define TC3589x_IO_PULL_VAL(index, mask) ((mask)<<((index)%4)*2))
+
+/* Bit masks for IOCFG register */
+#define IOCFG_BALLCFG 0x01
+#define IOCFG_IG 0x08
+
+#define KP_EVCODE_COL_MASK 0x0F
+#define KP_EVCODE_ROW_MASK 0x70
+#define KP_RELEASE_EVT_MASK 0x80
+
+#define KP_ROW_SHIFT 4
+
+#define KP_NO_VALID_KEY_MASK 0x7F
+
+/* bit masks for RESTCTRL register */
+#define TC3589x_KBDRST 0x2
+#define TC3589x_IRQRST 0x10
+#define TC3589x_RESET_ALL 0x1B
+
+/* KBDMFS register bit mask */
+#define TC3589x_KBDMFS_EN 0x1
+
+/* CLKEN register bitmask */
+#define KPD_CLK_EN 0x1
+
+/* RSTINTCLR register bit mask */
+#define IRQ_CLEAR 0x1
+
+/* bit masks for keyboard interrupts*/
+#define TC3589x_EVT_LOSS_INT 0x8
+#define TC3589x_EVT_INT 0x4
+#define TC3589x_KBD_LOSS_INT 0x2
+#define TC3589x_KBD_INT 0x1
+
+/* bit masks for keyboard interrupt clear*/
+#define TC3589x_EVT_INT_CLR 0x2
+#define TC3589x_KBD_INT_CLR 0x1
+
+#define TC3589x_KBD_KEYMAP_SIZE 64
+
+/**
+ * struct tc_keypad - data structure used by keypad driver
+ * @input: pointer to input device object
+ * @board: keypad platform device
+ * @krow: number of rows
+ * @kcol: number of coloumns
+ * @keymap: matrix scan code table for keycodes
+ */
+struct tc_keypad {
+ struct tc3589x *tc3589x;
+ struct input_dev *input;
+ const struct tc3589x_keypad_platform_data *board;
+ unsigned int krow;
+ unsigned int kcol;
+ unsigned short keymap[TC3589x_KBD_KEYMAP_SIZE];
+ bool keypad_stopped;
+};
+
+static int __devinit tc3589x_keypad_init_key_hardware(struct tc_keypad *keypad)
+{
+ int ret;
+ struct tc3589x *tc3589x = keypad->tc3589x;
+ u8 settle_time = keypad->board->settle_time;
+ u8 dbounce_period = keypad->board->debounce_period;
+ u8 rows = keypad->board->krow & 0xf; /* mask out the nibble */
+ u8 column = keypad->board->kcol & 0xf; /* mask out the nibble */
+
+ /* validate platform configurations */
+ if (keypad->board->kcol > TC3589x_MAX_KPCOL ||
+ keypad->board->krow > TC3589x_MAX_KPROW ||
+ keypad->board->debounce_period > TC3589x_MAX_DEBOUNCE_SETTLE ||
+ keypad->board->settle_time > TC3589x_MAX_DEBOUNCE_SETTLE)
+ return -EINVAL;
+
+ /* configure KBDSIZE 4 LSbits for cols and 4 MSbits for rows */
+ ret = tc3589x_reg_write(tc3589x, TC3589x_KBDSIZE,
+ (rows << KP_ROW_SHIFT) | column);
+ if (ret < 0)
+ return ret;
+
+ /* configure dedicated key config, no dedicated key selected */
+ ret = tc3589x_reg_write(tc3589x, TC3589x_KBCFG_LSB, DEDICATED_KEY_VAL);
+ if (ret < 0)
+ return ret;
+
+ ret = tc3589x_reg_write(tc3589x, TC3589x_KBCFG_MSB, DEDICATED_KEY_VAL);
+ if (ret < 0)
+ return ret;
+
+ /* Configure settle time */
+ ret = tc3589x_reg_write(tc3589x, TC3589x_KBDSETTLE_REG, settle_time);
+ if (ret < 0)
+ return ret;
+
+ /* Configure debounce time */
+ ret = tc3589x_reg_write(tc3589x, TC3589x_KBDBOUNCE, dbounce_period);
+ if (ret < 0)
+ return ret;
+
+ /* Start of initialise keypad GPIOs */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_IOCFG, 0x0, IOCFG_IG);
+ if (ret < 0)
+ return ret;
+
+ /* Configure pull-up resistors for all row GPIOs */
+ ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG0_LSB,
+ TC3589x_PULLUP_ALL_MASK);
+ if (ret < 0)
+ return ret;
+
+ ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG0_MSB,
+ TC3589x_PULLUP_ALL_MASK);
+ if (ret < 0)
+ return ret;
+
+ /* Configure pull-up resistors for all column GPIOs */
+ ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG1_LSB,
+ TC3589x_PULLUP_ALL_MASK);
+ if (ret < 0)
+ return ret;
+
+ ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG1_MSB,
+ TC3589x_PULLUP_ALL_MASK);
+ if (ret < 0)
+ return ret;
+
+ ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG2_LSB,
+ TC3589x_PULLUP_ALL_MASK);
+
+ return ret;
+}
+
+#define TC35893_DATA_REGS 4
+#define TC35893_KEYCODE_FIFO_EMPTY 0x7f
+#define TC35893_KEYCODE_FIFO_CLEAR 0xff
+#define TC35893_KEYPAD_ROW_SHIFT 0x3
+
+static irqreturn_t tc3589x_keypad_irq(int irq, void *dev)
+{
+ struct tc_keypad *keypad = dev;
+ struct tc3589x *tc3589x = keypad->tc3589x;
+ u8 i, row_index, col_index, kbd_code, up;
+ u8 code;
+
+ for (i = 0; i < TC35893_DATA_REGS * 2; i++) {
+ kbd_code = tc3589x_reg_read(tc3589x, TC3589x_EVTCODE_FIFO);
+
+ /* loop till fifo is empty and no more keys are pressed */
+ if (kbd_code == TC35893_KEYCODE_FIFO_EMPTY ||
+ kbd_code == TC35893_KEYCODE_FIFO_CLEAR)
+ continue;
+
+ /* valid key is found */
+ col_index = kbd_code & KP_EVCODE_COL_MASK;
+ row_index = (kbd_code & KP_EVCODE_ROW_MASK) >> KP_ROW_SHIFT;
+ code = MATRIX_SCAN_CODE(row_index, col_index,
+ TC35893_KEYPAD_ROW_SHIFT);
+ up = kbd_code & KP_RELEASE_EVT_MASK;
+
+ input_event(keypad->input, EV_MSC, MSC_SCAN, code);
+ input_report_key(keypad->input, keypad->keymap[code], !up);
+ input_sync(keypad->input);
+ }
+
+ /* clear IRQ */
+ tc3589x_set_bits(tc3589x, TC3589x_KBDIC,
+ 0x0, TC3589x_EVT_INT_CLR | TC3589x_KBD_INT_CLR);
+ /* enable IRQ */
+ tc3589x_set_bits(tc3589x, TC3589x_KBDMSK,
+ 0x0, TC3589x_EVT_LOSS_INT | TC3589x_EVT_INT);
+
+ return IRQ_HANDLED;
+}
+
+static int tc3589x_keypad_enable(struct tc_keypad *keypad)
+{
+ struct tc3589x *tc3589x = keypad->tc3589x;
+ int ret;
+
+ /* pull the keypad module out of reset */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_RSTCTRL, TC3589x_KBDRST, 0x0);
+ if (ret < 0)
+ return ret;
+
+ /* configure KBDMFS */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_KBDMFS, 0x0, TC3589x_KBDMFS_EN);
+ if (ret < 0)
+ return ret;
+
+ /* enable the keypad clock */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_CLKEN, 0x0, KPD_CLK_EN);
+ if (ret < 0)
+ return ret;
+
+ /* clear pending IRQs */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_RSTINTCLR, 0x0, 0x1);
+ if (ret < 0)
+ return ret;
+
+ /* enable the IRQs */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_KBDMSK, 0x0,
+ TC3589x_EVT_LOSS_INT | TC3589x_EVT_INT);
+ if (ret < 0)
+ return ret;
+
+ keypad->keypad_stopped = false;
+
+ return ret;
+}
+
+static int tc3589x_keypad_disable(struct tc_keypad *keypad)
+{
+ struct tc3589x *tc3589x = keypad->tc3589x;
+ int ret;
+
+ /* clear IRQ */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_KBDIC,
+ 0x0, TC3589x_EVT_INT_CLR | TC3589x_KBD_INT_CLR);
+ if (ret < 0)
+ return ret;
+
+ /* disable all interrupts */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_KBDMSK,
+ ~(TC3589x_EVT_LOSS_INT | TC3589x_EVT_INT), 0x0);
+ if (ret < 0)
+ return ret;
+
+ /* disable the keypad module */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_CLKEN, 0x1, 0x0);
+ if (ret < 0)
+ return ret;
+
+ /* put the keypad module into reset */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_RSTCTRL, TC3589x_KBDRST, 0x1);
+
+ keypad->keypad_stopped = true;
+
+ return ret;
+}
+
+static int tc3589x_keypad_open(struct input_dev *input)
+{
+ int error;
+ struct tc_keypad *keypad = input_get_drvdata(input);
+
+ /* enable the keypad module */
+ error = tc3589x_keypad_enable(keypad);
+ if (error < 0) {
+ dev_err(&input->dev, "failed to enable keypad module\n");
+ return error;
+ }
+
+ error = tc3589x_keypad_init_key_hardware(keypad);
+ if (error < 0) {
+ dev_err(&input->dev, "failed to configure keypad module\n");
+ return error;
+ }
+
+ return 0;
+}
+
+static void tc3589x_keypad_close(struct input_dev *input)
+{
+ struct tc_keypad *keypad = input_get_drvdata(input);
+
+ /* disable the keypad module */
+ tc3589x_keypad_disable(keypad);
+}
+
+static int __devinit tc3589x_keypad_probe(struct platform_device *pdev)
+{
+ struct tc3589x *tc3589x = dev_get_drvdata(pdev->dev.parent);
+ struct tc_keypad *keypad;
+ struct input_dev *input;
+ const struct tc3589x_keypad_platform_data *plat;
+ int error, irq;
+
+ plat = tc3589x->pdata->keypad;
+ if (!plat) {
+ dev_err(&pdev->dev, "invalid keypad platform data\n");
+ return -EINVAL;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ keypad = kzalloc(sizeof(struct tc_keypad), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!keypad || !input) {
+ dev_err(&pdev->dev, "failed to allocate keypad memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ keypad->board = plat;
+ keypad->input = input;
+ keypad->tc3589x = tc3589x;
+
+ input->id.bustype = BUS_I2C;
+ input->name = pdev->name;
+ input->dev.parent = &pdev->dev;
+
+ input->keycode = keypad->keymap;
+ input->keycodesize = sizeof(keypad->keymap[0]);
+ input->keycodemax = ARRAY_SIZE(keypad->keymap);
+
+ input->open = tc3589x_keypad_open;
+ input->close = tc3589x_keypad_close;
+
+ input_set_drvdata(input, keypad);
+
+ input_set_capability(input, EV_MSC, MSC_SCAN);
+
+ __set_bit(EV_KEY, input->evbit);
+ if (!plat->no_autorepeat)
+ __set_bit(EV_REP, input->evbit);
+
+ matrix_keypad_build_keymap(plat->keymap_data, 0x3,
+ input->keycode, input->keybit);
+
+ error = request_threaded_irq(irq, NULL,
+ tc3589x_keypad_irq, plat->irqtype,
+ "tc3589x-keypad", keypad);
+ if (error < 0) {
+ dev_err(&pdev->dev,
+ "Could not allocate irq %d,error %d\n",
+ irq, error);
+ goto err_free_mem;
+ }
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(&pdev->dev, "Could not register input device\n");
+ goto err_free_irq;
+ }
+
+ /* let platform decide if keypad is a wakeup source or not */
+ device_init_wakeup(&pdev->dev, plat->enable_wakeup);
+ device_set_wakeup_capable(&pdev->dev, plat->enable_wakeup);
+
+ platform_set_drvdata(pdev, keypad);
+
+ return 0;
+
+err_free_irq:
+ free_irq(irq, keypad);
+err_free_mem:
+ input_free_device(input);
+ kfree(keypad);
+ return error;
+}
+
+static int __devexit tc3589x_keypad_remove(struct platform_device *pdev)
+{
+ struct tc_keypad *keypad = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+
+ if (!keypad->keypad_stopped)
+ tc3589x_keypad_disable(keypad);
+
+ free_irq(irq, keypad);
+
+ input_unregister_device(keypad->input);
+
+ kfree(keypad);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int tc3589x_keypad_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct tc_keypad *keypad = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+
+ /* keypad is already off; we do nothing */
+ if (keypad->keypad_stopped)
+ return 0;
+
+ /* if device is not a wakeup source, disable it for powersave */
+ if (!device_may_wakeup(&pdev->dev))
+ tc3589x_keypad_disable(keypad);
+ else
+ enable_irq_wake(irq);
+
+ return 0;
+}
+
+static int tc3589x_keypad_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct tc_keypad *keypad = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+
+ if (!keypad->keypad_stopped)
+ return 0;
+
+ /* enable the device to resume normal operations */
+ if (!device_may_wakeup(&pdev->dev))
+ tc3589x_keypad_enable(keypad);
+ else
+ disable_irq_wake(irq);
+
+ return 0;
+}
+
+static const SIMPLE_DEV_PM_OPS(tc3589x_keypad_dev_pm_ops,
+ tc3589x_keypad_suspend, tc3589x_keypad_resume);
+#endif
+
+static struct platform_driver tc3589x_keypad_driver = {
+ .driver.name = "tc3589x-keypad",
+ .driver.owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .driver.pm = &tc3589x_keypad_dev_pm_ops,
+#endif
+ .probe = tc3589x_keypad_probe,
+ .remove = __devexit_p(tc3589x_keypad_remove),
+};
+
+static int __init tc3589x_keypad_init(void)
+{
+ return platform_driver_register(&tc3589x_keypad_driver);
+}
+module_init(tc3589x_keypad_init);
+
+static void __exit tc3589x_keypad_exit(void)
+{
+ return platform_driver_unregister(&tc3589x_keypad_driver);
+}
+module_exit(tc3589x_keypad_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Jayeeta Banerjee/Sundar Iyer");
+MODULE_DESCRIPTION("TC35893 Keypad Driver");
+MODULE_ALIAS("platform:tc3589x-keypad");
diff --git a/drivers/input/keyboard/tca6416-keypad.c b/drivers/input/keyboard/tca6416-keypad.c
index 00137bebcf9..800fbccf1f0 100644
--- a/drivers/input/keyboard/tca6416-keypad.c
+++ b/drivers/input/keyboard/tca6416-keypad.c
@@ -29,6 +29,7 @@
static const struct i2c_device_id tca6416_id[] = {
{ "tca6416-keys", 16, },
+ { "tca6408-keys", 8, },
{ }
};
MODULE_DEVICE_TABLE(i2c, tca6416_id);
@@ -46,8 +47,9 @@ struct tca6416_keypad_chip {
struct i2c_client *client;
struct input_dev *input;
struct delayed_work dwork;
- u16 pinmask;
+ int io_size;
int irqnum;
+ u16 pinmask;
bool use_polling;
struct tca6416_button buttons[0];
};
@@ -56,7 +58,9 @@ static int tca6416_write_reg(struct tca6416_keypad_chip *chip, int reg, u16 val)
{
int error;
- error = i2c_smbus_write_word_data(chip->client, reg << 1, val);
+ error = chip->io_size > 8 ?
+ i2c_smbus_write_word_data(chip->client, reg << 1, val) :
+ i2c_smbus_write_byte_data(chip->client, reg, val);
if (error < 0) {
dev_err(&chip->client->dev,
"%s failed, reg: %d, val: %d, error: %d\n",
@@ -71,7 +75,9 @@ static int tca6416_read_reg(struct tca6416_keypad_chip *chip, int reg, u16 *val)
{
int retval;
- retval = i2c_smbus_read_word_data(chip->client, reg << 1);
+ retval = chip->io_size > 8 ?
+ i2c_smbus_read_word_data(chip->client, reg << 1) :
+ i2c_smbus_read_byte_data(chip->client, reg);
if (retval < 0) {
dev_err(&chip->client->dev, "%s failed, reg: %d, error: %d\n",
__func__, reg, retval);
@@ -224,6 +230,7 @@ static int __devinit tca6416_keypad_probe(struct i2c_client *client,
chip->client = client;
chip->input = input;
+ chip->io_size = id->driver_data;
chip->pinmask = pdata->pinmask;
chip->use_polling = pdata->use_polling;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-08 07:00:11 +0000