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path: root/drivers/input/keyboard/adp5588-keys.c
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Diffstat (limited to 'drivers/input/keyboard/adp5588-keys.c')
-rw-r--r--drivers/input/keyboard/adp5588-keys.c135
1 files changed, 56 insertions, 79 deletions
diff --git a/drivers/input/keyboard/adp5588-keys.c b/drivers/input/keyboard/adp5588-keys.c
index b92d1cd5cba..5ef7fcf0e25 100644
--- a/drivers/input/keyboard/adp5588-keys.c
+++ b/drivers/input/keyboard/adp5588-keys.c
@@ -4,13 +4,11 @@
* I2C QWERTY Keypad and IO Expander
* Bugs: Enter bugs at http://blackfin.uclinux.org/
*
- * Copyright (C) 2008-2009 Analog Devices Inc.
+ * Copyright (C) 2008-2010 Analog Devices Inc.
* Licensed under the GPL-2 or later.
*/
#include <linux/module.h>
-#include <linux/version.h>
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/workqueue.h>
@@ -24,29 +22,6 @@
#include <linux/i2c/adp5588.h>
- /* Configuration Register1 */
-#define AUTO_INC (1 << 7)
-#define GPIEM_CFG (1 << 6)
-#define OVR_FLOW_M (1 << 5)
-#define INT_CFG (1 << 4)
-#define OVR_FLOW_IEN (1 << 3)
-#define K_LCK_IM (1 << 2)
-#define GPI_IEN (1 << 1)
-#define KE_IEN (1 << 0)
-
-/* Interrupt Status Register */
-#define CMP2_INT (1 << 5)
-#define CMP1_INT (1 << 4)
-#define OVR_FLOW_INT (1 << 3)
-#define K_LCK_INT (1 << 2)
-#define GPI_INT (1 << 1)
-#define KE_INT (1 << 0)
-
-/* Key Lock and Event Counter Register */
-#define K_LCK_EN (1 << 6)
-#define LCK21 0x30
-#define KEC 0xF
-
/* Key Event Register xy */
#define KEY_EV_PRESSED (1 << 7)
#define KEY_EV_MASK (0x7F)
@@ -55,10 +30,6 @@
#define KEYP_MAX_EVENT 10
-#define MAXGPIO 18
-#define ADP_BANK(offs) ((offs) >> 3)
-#define ADP_BIT(offs) (1u << ((offs) & 0x7))
-
/*
* Early pre 4.0 Silicon required to delay readout by at least 25ms,
* since the Event Counter Register updated 25ms after the interrupt
@@ -75,7 +46,7 @@ struct adp5588_kpad {
const struct adp5588_gpi_map *gpimap;
unsigned short gpimapsize;
#ifdef CONFIG_GPIOLIB
- unsigned char gpiomap[MAXGPIO];
+ unsigned char gpiomap[ADP5588_MAXGPIO];
bool export_gpio;
struct gpio_chip gc;
struct mutex gpio_lock; /* Protect cached dir, dat_out */
@@ -103,18 +74,28 @@ static int adp5588_write(struct i2c_client *client, u8 reg, u8 val)
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 = ADP_BANK(kpad->gpiomap[off]);
- unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
+ unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
+ unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
+ int val;
+
+ mutex_lock(&kpad->gpio_lock);
- return !!(adp5588_read(kpad->client, GPIO_DAT_STAT1 + bank) & bit);
+ if (kpad->dir[bank] & bit)
+ val = kpad->dat_out[bank];
+ else
+ val = adp5588_read(kpad->client, GPIO_DAT_STAT1 + bank);
+
+ mutex_unlock(&kpad->gpio_lock);
+
+ return !!(val & 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 = ADP_BANK(kpad->gpiomap[off]);
- unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
+ unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
+ unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
mutex_lock(&kpad->gpio_lock);
@@ -132,8 +113,8 @@ static void adp5588_gpio_set_value(struct gpio_chip *chip,
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 = ADP_BANK(kpad->gpiomap[off]);
- unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
+ unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
+ unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
int ret;
mutex_lock(&kpad->gpio_lock);
@@ -150,8 +131,8 @@ 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 = ADP_BANK(kpad->gpiomap[off]);
- unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
+ unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
+ unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
int ret;
mutex_lock(&kpad->gpio_lock);
@@ -173,10 +154,10 @@ static int adp5588_gpio_direction_output(struct gpio_chip *chip,
return ret;
}
-static int __devinit adp5588_build_gpiomap(struct adp5588_kpad *kpad,
+static int adp5588_build_gpiomap(struct adp5588_kpad *kpad,
const struct adp5588_kpad_platform_data *pdata)
{
- bool pin_used[MAXGPIO];
+ bool pin_used[ADP5588_MAXGPIO];
int n_unused = 0;
int i;
@@ -191,17 +172,17 @@ static int __devinit adp5588_build_gpiomap(struct adp5588_kpad *kpad,
for (i = 0; i < kpad->gpimapsize; i++)
pin_used[kpad->gpimap[i].pin - GPI_PIN_BASE] = true;
- for (i = 0; i < MAXGPIO; i++)
+ 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)
+static int 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_kpad_platform_data *pdata = dev_get_platdata(dev);
const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
int i, error;
@@ -225,6 +206,7 @@ static int __devinit adp5588_gpio_add(struct adp5588_kpad *kpad)
kpad->gc.base = gpio_data->gpio_start;
kpad->gc.label = kpad->client->name;
kpad->gc.owner = THIS_MODULE;
+ kpad->gc.names = gpio_data->names;
mutex_init(&kpad->gpio_lock);
@@ -234,7 +216,7 @@ static int __devinit adp5588_gpio_add(struct adp5588_kpad *kpad)
return error;
}
- for (i = 0; i <= ADP_BANK(MAXGPIO); i++) {
+ 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);
@@ -251,10 +233,10 @@ static int __devinit adp5588_gpio_add(struct adp5588_kpad *kpad)
return 0;
}
-static void __devexit adp5588_gpio_remove(struct adp5588_kpad *kpad)
+static void 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_kpad_platform_data *pdata = dev_get_platdata(dev);
const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
int error;
@@ -318,11 +300,11 @@ static void adp5588_work(struct work_struct *work)
status = adp5588_read(client, INT_STAT);
- if (status & OVR_FLOW_INT) /* Unlikely and should never happen */
+ if (status & ADP5588_OVR_FLOW_INT) /* Unlikely and should never happen */
dev_err(&client->dev, "Event Overflow Error\n");
- if (status & KE_INT) {
- ev_cnt = adp5588_read(client, KEY_LCK_EC_STAT) & KEC;
+ 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);
@@ -346,9 +328,10 @@ static irqreturn_t adp5588_irq(int irq, void *handle)
return IRQ_HANDLED;
}
-static int __devinit adp5588_setup(struct i2c_client *client)
+static int adp5588_setup(struct i2c_client *client)
{
- const struct adp5588_kpad_platform_data *pdata = client->dev.platform_data;
+ const struct adp5588_kpad_platform_data *pdata =
+ dev_get_platdata(&client->dev);
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;
@@ -360,7 +343,7 @@ static int __devinit adp5588_setup(struct i2c_client *client)
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, K_LCK_EN);
+ ret |= adp5588_write(client, KEY_LCK_EC_STAT, ADP5588_K_LCK_EN);
}
for (i = 0; i < KEYP_MAX_EVENT; i++)
@@ -384,7 +367,7 @@ static int __devinit adp5588_setup(struct i2c_client *client)
}
if (gpio_data) {
- for (i = 0; i <= ADP_BANK(MAXGPIO); i++) {
+ for (i = 0; i <= ADP5588_BANK(ADP5588_MAXGPIO); i++) {
int pull_mask = gpio_data->pullup_dis_mask;
ret |= adp5588_write(client, GPIO_PULL1 + i,
@@ -392,11 +375,14 @@ static int __devinit adp5588_setup(struct i2c_client *client)
}
}
- ret |= adp5588_write(client, INT_STAT, CMP2_INT | CMP1_INT |
- OVR_FLOW_INT | K_LCK_INT |
- GPI_INT | KE_INT); /* Status is W1C */
+ 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, INT_CFG | OVR_FLOW_IEN | KE_IEN);
+ 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");
@@ -406,7 +392,7 @@ static int __devinit adp5588_setup(struct i2c_client *client)
return 0;
}
-static void __devinit adp5588_report_switch_state(struct adp5588_kpad *kpad)
+static void 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);
@@ -444,11 +430,12 @@ static void __devinit adp5588_report_switch_state(struct adp5588_kpad *kpad)
}
-static int __devinit adp5588_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int 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;
+ const struct adp5588_kpad_platform_data *pdata =
+ dev_get_platdata(&client->dev);
struct input_dev *input;
unsigned int revid;
int ret, i;
@@ -560,7 +547,8 @@ static int __devinit adp5588_probe(struct i2c_client *client,
__set_bit(EV_REP, input->evbit);
for (i = 0; i < input->keycodemax; i++)
- __set_bit(kpad->keycode[i] & KEY_MAX, input->keybit);
+ if (kpad->keycode[i] <= KEY_MAX)
+ __set_bit(kpad->keycode[i], input->keybit);
__clear_bit(KEY_RESERVED, input->keybit);
if (kpad->gpimapsize)
@@ -575,7 +563,7 @@ static int __devinit adp5588_probe(struct i2c_client *client,
}
error = request_irq(client->irq, adp5588_irq,
- IRQF_TRIGGER_FALLING | IRQF_DISABLED,
+ IRQF_TRIGGER_FALLING,
client->dev.driver->name, kpad);
if (error) {
dev_err(&client->dev, "irq %d busy?\n", client->irq);
@@ -611,7 +599,7 @@ static int __devinit adp5588_probe(struct i2c_client *client,
return error;
}
-static int __devexit adp5588_remove(struct i2c_client *client)
+static int adp5588_remove(struct i2c_client *client)
{
struct adp5588_kpad *kpad = i2c_get_clientdata(client);
@@ -674,23 +662,12 @@ static struct i2c_driver adp5588_driver = {
#endif
},
.probe = adp5588_probe,
- .remove = __devexit_p(adp5588_remove),
+ .remove = adp5588_remove,
.id_table = adp5588_id,
};
-static int __init adp5588_init(void)
-{
- return i2c_add_driver(&adp5588_driver);
-}
-module_init(adp5588_init);
-
-static void __exit adp5588_exit(void)
-{
- i2c_del_driver(&adp5588_driver);
-}
-module_exit(adp5588_exit);
+module_i2c_driver(adp5588_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_DESCRIPTION("ADP5588/87 Keypad driver");
-MODULE_ALIAS("platform:adp5588-keys");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-15 23:03:59 +0000