mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 12:12:35 +07:00
5993548725
It was pointed out by 'make versioncheck' that some includes of linux/version.h are not needed in drivers/input/. This patch removes them. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Acked-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
771 lines
19 KiB
C
771 lines
19 KiB
C
/*
|
|
* Description: keypad driver for ADP5589
|
|
* I2C QWERTY Keypad and IO Expander
|
|
* Bugs: Enter bugs at http://blackfin.uclinux.org/
|
|
*
|
|
* Copyright (C) 2010-2011 Analog Devices Inc.
|
|
* Licensed under the GPL-2.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/pm.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/input.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include <linux/input/adp5589.h>
|
|
|
|
/* GENERAL_CFG Register */
|
|
#define OSC_EN (1 << 7)
|
|
#define CORE_CLK(x) (((x) & 0x3) << 5)
|
|
#define LCK_TRK_LOGIC (1 << 4)
|
|
#define LCK_TRK_GPI (1 << 3)
|
|
#define INT_CFG (1 << 1)
|
|
#define RST_CFG (1 << 0)
|
|
|
|
/* INT_EN Register */
|
|
#define LOGIC2_IEN (1 << 5)
|
|
#define LOGIC1_IEN (1 << 4)
|
|
#define LOCK_IEN (1 << 3)
|
|
#define OVRFLOW_IEN (1 << 2)
|
|
#define GPI_IEN (1 << 1)
|
|
#define EVENT_IEN (1 << 0)
|
|
|
|
/* Interrupt Status Register */
|
|
#define LOGIC2_INT (1 << 5)
|
|
#define LOGIC1_INT (1 << 4)
|
|
#define LOCK_INT (1 << 3)
|
|
#define OVRFLOW_INT (1 << 2)
|
|
#define GPI_INT (1 << 1)
|
|
#define EVENT_INT (1 << 0)
|
|
|
|
/* STATUS Register */
|
|
|
|
#define LOGIC2_STAT (1 << 7)
|
|
#define LOGIC1_STAT (1 << 6)
|
|
#define LOCK_STAT (1 << 5)
|
|
#define KEC 0xF
|
|
|
|
/* PIN_CONFIG_D Register */
|
|
#define C4_EXTEND_CFG (1 << 6) /* RESET2 */
|
|
#define R4_EXTEND_CFG (1 << 5) /* RESET1 */
|
|
|
|
/* LOCK_CFG */
|
|
#define LOCK_EN (1 << 0)
|
|
|
|
#define PTIME_MASK 0x3
|
|
#define LTIME_MASK 0x3
|
|
|
|
/* Key Event Register xy */
|
|
#define KEY_EV_PRESSED (1 << 7)
|
|
#define KEY_EV_MASK (0x7F)
|
|
|
|
#define KEYP_MAX_EVENT 16
|
|
|
|
#define MAXGPIO 19
|
|
#define ADP_BANK(offs) ((offs) >> 3)
|
|
#define ADP_BIT(offs) (1u << ((offs) & 0x7))
|
|
|
|
struct adp5589_kpad {
|
|
struct i2c_client *client;
|
|
struct input_dev *input;
|
|
unsigned short keycode[ADP5589_KEYMAPSIZE];
|
|
const struct adp5589_gpi_map *gpimap;
|
|
unsigned short gpimapsize;
|
|
unsigned extend_cfg;
|
|
#ifdef CONFIG_GPIOLIB
|
|
unsigned char gpiomap[MAXGPIO];
|
|
bool export_gpio;
|
|
struct gpio_chip gc;
|
|
struct mutex gpio_lock; /* Protect cached dir, dat_out */
|
|
u8 dat_out[3];
|
|
u8 dir[3];
|
|
#endif
|
|
};
|
|
|
|
static int adp5589_read(struct i2c_client *client, u8 reg)
|
|
{
|
|
int ret = i2c_smbus_read_byte_data(client, reg);
|
|
|
|
if (ret < 0)
|
|
dev_err(&client->dev, "Read Error\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int adp5589_write(struct i2c_client *client, u8 reg, u8 val)
|
|
{
|
|
return i2c_smbus_write_byte_data(client, reg, val);
|
|
}
|
|
|
|
#ifdef CONFIG_GPIOLIB
|
|
static int adp5589_gpio_get_value(struct gpio_chip *chip, unsigned off)
|
|
{
|
|
struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
|
|
unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
|
|
unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
|
|
|
|
return !!(adp5589_read(kpad->client, ADP5589_GPI_STATUS_A + bank) &
|
|
bit);
|
|
}
|
|
|
|
static void adp5589_gpio_set_value(struct gpio_chip *chip,
|
|
unsigned off, int val)
|
|
{
|
|
struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
|
|
unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
|
|
unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
|
|
|
|
mutex_lock(&kpad->gpio_lock);
|
|
|
|
if (val)
|
|
kpad->dat_out[bank] |= bit;
|
|
else
|
|
kpad->dat_out[bank] &= ~bit;
|
|
|
|
adp5589_write(kpad->client, ADP5589_GPO_DATA_OUT_A + bank,
|
|
kpad->dat_out[bank]);
|
|
|
|
mutex_unlock(&kpad->gpio_lock);
|
|
}
|
|
|
|
static int adp5589_gpio_direction_input(struct gpio_chip *chip, unsigned off)
|
|
{
|
|
struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
|
|
unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
|
|
unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
|
|
int ret;
|
|
|
|
mutex_lock(&kpad->gpio_lock);
|
|
|
|
kpad->dir[bank] &= ~bit;
|
|
ret = adp5589_write(kpad->client, ADP5589_GPIO_DIRECTION_A + bank,
|
|
kpad->dir[bank]);
|
|
|
|
mutex_unlock(&kpad->gpio_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int adp5589_gpio_direction_output(struct gpio_chip *chip,
|
|
unsigned off, int val)
|
|
{
|
|
struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
|
|
unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
|
|
unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
|
|
int ret;
|
|
|
|
mutex_lock(&kpad->gpio_lock);
|
|
|
|
kpad->dir[bank] |= bit;
|
|
|
|
if (val)
|
|
kpad->dat_out[bank] |= bit;
|
|
else
|
|
kpad->dat_out[bank] &= ~bit;
|
|
|
|
ret = adp5589_write(kpad->client, ADP5589_GPO_DATA_OUT_A + bank,
|
|
kpad->dat_out[bank]);
|
|
ret |= adp5589_write(kpad->client, ADP5589_GPIO_DIRECTION_A + bank,
|
|
kpad->dir[bank]);
|
|
|
|
mutex_unlock(&kpad->gpio_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int __devinit adp5589_build_gpiomap(struct adp5589_kpad *kpad,
|
|
const struct adp5589_kpad_platform_data *pdata)
|
|
{
|
|
bool pin_used[MAXGPIO];
|
|
int n_unused = 0;
|
|
int i;
|
|
|
|
memset(pin_used, false, sizeof(pin_used));
|
|
|
|
for (i = 0; i < MAXGPIO; i++)
|
|
if (pdata->keypad_en_mask & (1 << i))
|
|
pin_used[i] = true;
|
|
|
|
for (i = 0; i < kpad->gpimapsize; i++)
|
|
pin_used[kpad->gpimap[i].pin - ADP5589_GPI_PIN_BASE] = true;
|
|
|
|
if (kpad->extend_cfg & R4_EXTEND_CFG)
|
|
pin_used[4] = true;
|
|
|
|
if (kpad->extend_cfg & C4_EXTEND_CFG)
|
|
pin_used[12] = true;
|
|
|
|
for (i = 0; i < MAXGPIO; i++)
|
|
if (!pin_used[i])
|
|
kpad->gpiomap[n_unused++] = i;
|
|
|
|
return n_unused;
|
|
}
|
|
|
|
static int __devinit adp5589_gpio_add(struct adp5589_kpad *kpad)
|
|
{
|
|
struct device *dev = &kpad->client->dev;
|
|
const struct adp5589_kpad_platform_data *pdata = dev->platform_data;
|
|
const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
|
|
int i, error;
|
|
|
|
if (!gpio_data)
|
|
return 0;
|
|
|
|
kpad->gc.ngpio = adp5589_build_gpiomap(kpad, pdata);
|
|
if (kpad->gc.ngpio == 0) {
|
|
dev_info(dev, "No unused gpios left to export\n");
|
|
return 0;
|
|
}
|
|
|
|
kpad->export_gpio = true;
|
|
|
|
kpad->gc.direction_input = adp5589_gpio_direction_input;
|
|
kpad->gc.direction_output = adp5589_gpio_direction_output;
|
|
kpad->gc.get = adp5589_gpio_get_value;
|
|
kpad->gc.set = adp5589_gpio_set_value;
|
|
kpad->gc.can_sleep = 1;
|
|
|
|
kpad->gc.base = gpio_data->gpio_start;
|
|
kpad->gc.label = kpad->client->name;
|
|
kpad->gc.owner = THIS_MODULE;
|
|
|
|
mutex_init(&kpad->gpio_lock);
|
|
|
|
error = gpiochip_add(&kpad->gc);
|
|
if (error) {
|
|
dev_err(dev, "gpiochip_add failed, err: %d\n", error);
|
|
return error;
|
|
}
|
|
|
|
for (i = 0; i <= ADP_BANK(MAXGPIO); i++) {
|
|
kpad->dat_out[i] = adp5589_read(kpad->client,
|
|
ADP5589_GPO_DATA_OUT_A + i);
|
|
kpad->dir[i] = adp5589_read(kpad->client,
|
|
ADP5589_GPIO_DIRECTION_A + i);
|
|
}
|
|
|
|
if (gpio_data->setup) {
|
|
error = gpio_data->setup(kpad->client,
|
|
kpad->gc.base, kpad->gc.ngpio,
|
|
gpio_data->context);
|
|
if (error)
|
|
dev_warn(dev, "setup failed, %d\n", error);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __devexit adp5589_gpio_remove(struct adp5589_kpad *kpad)
|
|
{
|
|
struct device *dev = &kpad->client->dev;
|
|
const struct adp5589_kpad_platform_data *pdata = dev->platform_data;
|
|
const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
|
|
int error;
|
|
|
|
if (!kpad->export_gpio)
|
|
return;
|
|
|
|
if (gpio_data->teardown) {
|
|
error = gpio_data->teardown(kpad->client,
|
|
kpad->gc.base, kpad->gc.ngpio,
|
|
gpio_data->context);
|
|
if (error)
|
|
dev_warn(dev, "teardown failed %d\n", error);
|
|
}
|
|
|
|
error = gpiochip_remove(&kpad->gc);
|
|
if (error)
|
|
dev_warn(dev, "gpiochip_remove failed %d\n", error);
|
|
}
|
|
#else
|
|
static inline int adp5589_gpio_add(struct adp5589_kpad *kpad)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void adp5589_gpio_remove(struct adp5589_kpad *kpad)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
static void adp5589_report_switches(struct adp5589_kpad *kpad,
|
|
int key, int key_val)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < kpad->gpimapsize; i++) {
|
|
if (key_val == kpad->gpimap[i].pin) {
|
|
input_report_switch(kpad->input,
|
|
kpad->gpimap[i].sw_evt,
|
|
key & KEY_EV_PRESSED);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void adp5589_report_events(struct adp5589_kpad *kpad, int ev_cnt)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ev_cnt; i++) {
|
|
int key = adp5589_read(kpad->client, ADP5589_FIFO_1 + i);
|
|
int key_val = key & KEY_EV_MASK;
|
|
|
|
if (key_val >= ADP5589_GPI_PIN_BASE &&
|
|
key_val <= ADP5589_GPI_PIN_END) {
|
|
adp5589_report_switches(kpad, key, key_val);
|
|
} else {
|
|
input_report_key(kpad->input,
|
|
kpad->keycode[key_val - 1],
|
|
key & KEY_EV_PRESSED);
|
|
}
|
|
}
|
|
}
|
|
|
|
static irqreturn_t adp5589_irq(int irq, void *handle)
|
|
{
|
|
struct adp5589_kpad *kpad = handle;
|
|
struct i2c_client *client = kpad->client;
|
|
int status, ev_cnt;
|
|
|
|
status = adp5589_read(client, ADP5589_INT_STATUS);
|
|
|
|
if (status & OVRFLOW_INT) /* Unlikely and should never happen */
|
|
dev_err(&client->dev, "Event Overflow Error\n");
|
|
|
|
if (status & EVENT_INT) {
|
|
ev_cnt = adp5589_read(client, ADP5589_STATUS) & KEC;
|
|
if (ev_cnt) {
|
|
adp5589_report_events(kpad, ev_cnt);
|
|
input_sync(kpad->input);
|
|
}
|
|
}
|
|
|
|
adp5589_write(client, ADP5589_INT_STATUS, status); /* Status is W1C */
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int __devinit adp5589_get_evcode(struct adp5589_kpad *kpad, unsigned short key)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ADP5589_KEYMAPSIZE; i++)
|
|
if (key == kpad->keycode[i])
|
|
return (i + 1) | KEY_EV_PRESSED;
|
|
|
|
dev_err(&kpad->client->dev, "RESET/UNLOCK key not in keycode map\n");
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int __devinit adp5589_setup(struct adp5589_kpad *kpad)
|
|
{
|
|
struct i2c_client *client = kpad->client;
|
|
const struct adp5589_kpad_platform_data *pdata =
|
|
client->dev.platform_data;
|
|
int i, ret;
|
|
unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
|
|
unsigned char pull_mask = 0;
|
|
|
|
ret = adp5589_write(client, ADP5589_PIN_CONFIG_A,
|
|
pdata->keypad_en_mask & 0xFF);
|
|
ret |= adp5589_write(client, ADP5589_PIN_CONFIG_B,
|
|
(pdata->keypad_en_mask >> 8) & 0xFF);
|
|
ret |= adp5589_write(client, ADP5589_PIN_CONFIG_C,
|
|
(pdata->keypad_en_mask >> 16) & 0xFF);
|
|
|
|
if (pdata->en_keylock) {
|
|
ret |= adp5589_write(client, ADP5589_UNLOCK1,
|
|
pdata->unlock_key1);
|
|
ret |= adp5589_write(client, ADP5589_UNLOCK2,
|
|
pdata->unlock_key2);
|
|
ret |= adp5589_write(client, ADP5589_UNLOCK_TIMERS,
|
|
pdata->unlock_timer & LTIME_MASK);
|
|
ret |= adp5589_write(client, ADP5589_LOCK_CFG, LOCK_EN);
|
|
}
|
|
|
|
for (i = 0; i < KEYP_MAX_EVENT; i++)
|
|
ret |= adp5589_read(client, ADP5589_FIFO_1 + i);
|
|
|
|
for (i = 0; i < pdata->gpimapsize; i++) {
|
|
unsigned short pin = pdata->gpimap[i].pin;
|
|
|
|
if (pin <= ADP5589_GPI_PIN_ROW_END) {
|
|
evt_mode1 |= (1 << (pin - ADP5589_GPI_PIN_ROW_BASE));
|
|
} else {
|
|
evt_mode2 |=
|
|
((1 << (pin - ADP5589_GPI_PIN_COL_BASE)) & 0xFF);
|
|
evt_mode3 |=
|
|
((1 << (pin - ADP5589_GPI_PIN_COL_BASE)) >> 8);
|
|
}
|
|
}
|
|
|
|
if (pdata->gpimapsize) {
|
|
ret |= adp5589_write(client, ADP5589_GPI_EVENT_EN_A, evt_mode1);
|
|
ret |= adp5589_write(client, ADP5589_GPI_EVENT_EN_B, evt_mode2);
|
|
ret |= adp5589_write(client, ADP5589_GPI_EVENT_EN_C, evt_mode3);
|
|
}
|
|
|
|
if (pdata->pull_dis_mask & pdata->pullup_en_100k &
|
|
pdata->pullup_en_300k & pdata->pulldown_en_300k)
|
|
dev_warn(&client->dev, "Conflicting pull resistor config\n");
|
|
|
|
for (i = 0; i < MAXGPIO; i++) {
|
|
unsigned val = 0;
|
|
|
|
if (pdata->pullup_en_300k & (1 << i))
|
|
val = 0;
|
|
else if (pdata->pulldown_en_300k & (1 << i))
|
|
val = 1;
|
|
else if (pdata->pullup_en_100k & (1 << i))
|
|
val = 2;
|
|
else if (pdata->pull_dis_mask & (1 << i))
|
|
val = 3;
|
|
|
|
pull_mask |= val << (2 * (i & 0x3));
|
|
|
|
if ((i & 0x3) == 0x3 || i == MAXGPIO - 1) {
|
|
ret |= adp5589_write(client,
|
|
ADP5589_RPULL_CONFIG_A + (i >> 2),
|
|
pull_mask);
|
|
pull_mask = 0;
|
|
}
|
|
}
|
|
|
|
if (pdata->reset1_key_1 && pdata->reset1_key_2 && pdata->reset1_key_3) {
|
|
ret |= adp5589_write(client, ADP5589_RESET1_EVENT_A,
|
|
adp5589_get_evcode(kpad,
|
|
pdata->reset1_key_1));
|
|
ret |= adp5589_write(client, ADP5589_RESET1_EVENT_B,
|
|
adp5589_get_evcode(kpad,
|
|
pdata->reset1_key_2));
|
|
ret |= adp5589_write(client, ADP5589_RESET1_EVENT_C,
|
|
adp5589_get_evcode(kpad,
|
|
pdata->reset1_key_3));
|
|
kpad->extend_cfg |= R4_EXTEND_CFG;
|
|
}
|
|
|
|
if (pdata->reset2_key_1 && pdata->reset2_key_2) {
|
|
ret |= adp5589_write(client, ADP5589_RESET2_EVENT_A,
|
|
adp5589_get_evcode(kpad,
|
|
pdata->reset2_key_1));
|
|
ret |= adp5589_write(client, ADP5589_RESET2_EVENT_B,
|
|
adp5589_get_evcode(kpad,
|
|
pdata->reset2_key_2));
|
|
kpad->extend_cfg |= C4_EXTEND_CFG;
|
|
}
|
|
|
|
if (kpad->extend_cfg) {
|
|
ret |= adp5589_write(client, ADP5589_RESET_CFG,
|
|
pdata->reset_cfg);
|
|
ret |= adp5589_write(client, ADP5589_PIN_CONFIG_D,
|
|
kpad->extend_cfg);
|
|
}
|
|
|
|
for (i = 0; i <= ADP_BANK(MAXGPIO); i++)
|
|
ret |= adp5589_write(client, ADP5589_DEBOUNCE_DIS_A + i,
|
|
pdata->debounce_dis_mask >> (i * 8));
|
|
|
|
ret |= adp5589_write(client, ADP5589_POLL_PTIME_CFG,
|
|
pdata->scan_cycle_time & PTIME_MASK);
|
|
ret |= adp5589_write(client, ADP5589_INT_STATUS, LOGIC2_INT |
|
|
LOGIC1_INT | OVRFLOW_INT | LOCK_INT |
|
|
GPI_INT | EVENT_INT); /* Status is W1C */
|
|
|
|
ret |= adp5589_write(client, ADP5589_GENERAL_CFG,
|
|
INT_CFG | OSC_EN | CORE_CLK(3));
|
|
ret |= adp5589_write(client, ADP5589_INT_EN,
|
|
OVRFLOW_IEN | GPI_IEN | EVENT_IEN);
|
|
|
|
if (ret < 0) {
|
|
dev_err(&client->dev, "Write Error\n");
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __devinit adp5589_report_switch_state(struct adp5589_kpad *kpad)
|
|
{
|
|
int gpi_stat1 = adp5589_read(kpad->client, ADP5589_GPI_STATUS_A);
|
|
int gpi_stat2 = adp5589_read(kpad->client, ADP5589_GPI_STATUS_B);
|
|
int gpi_stat3 = adp5589_read(kpad->client, ADP5589_GPI_STATUS_C);
|
|
int gpi_stat_tmp, pin_loc;
|
|
int i;
|
|
|
|
for (i = 0; i < kpad->gpimapsize; i++) {
|
|
unsigned short pin = kpad->gpimap[i].pin;
|
|
|
|
if (pin <= ADP5589_GPI_PIN_ROW_END) {
|
|
gpi_stat_tmp = gpi_stat1;
|
|
pin_loc = pin - ADP5589_GPI_PIN_ROW_BASE;
|
|
} else if ((pin - ADP5589_GPI_PIN_COL_BASE) < 8) {
|
|
gpi_stat_tmp = gpi_stat2;
|
|
pin_loc = pin - ADP5589_GPI_PIN_COL_BASE;
|
|
} else {
|
|
gpi_stat_tmp = gpi_stat3;
|
|
pin_loc = pin - ADP5589_GPI_PIN_COL_BASE - 8;
|
|
}
|
|
|
|
if (gpi_stat_tmp < 0) {
|
|
dev_err(&kpad->client->dev,
|
|
"Can't read GPIO_DAT_STAT switch"
|
|
" %d default to OFF\n", pin);
|
|
gpi_stat_tmp = 0;
|
|
}
|
|
|
|
input_report_switch(kpad->input,
|
|
kpad->gpimap[i].sw_evt,
|
|
!(gpi_stat_tmp & (1 << pin_loc)));
|
|
}
|
|
|
|
input_sync(kpad->input);
|
|
}
|
|
|
|
static int __devinit adp5589_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct adp5589_kpad *kpad;
|
|
const struct adp5589_kpad_platform_data *pdata;
|
|
struct input_dev *input;
|
|
unsigned int revid;
|
|
int ret, i;
|
|
int error;
|
|
|
|
if (!i2c_check_functionality(client->adapter,
|
|
I2C_FUNC_SMBUS_BYTE_DATA)) {
|
|
dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
|
|
return -EIO;
|
|
}
|
|
|
|
pdata = client->dev.platform_data;
|
|
if (!pdata) {
|
|
dev_err(&client->dev, "no platform data?\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!((pdata->keypad_en_mask & 0xFF) &&
|
|
(pdata->keypad_en_mask >> 8)) || !pdata->keymap) {
|
|
dev_err(&client->dev, "no rows, cols or keymap from pdata\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (pdata->keymapsize != ADP5589_KEYMAPSIZE) {
|
|
dev_err(&client->dev, "invalid keymapsize\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!pdata->gpimap && pdata->gpimapsize) {
|
|
dev_err(&client->dev, "invalid gpimap from pdata\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (pdata->gpimapsize > ADP5589_GPIMAPSIZE_MAX) {
|
|
dev_err(&client->dev, "invalid gpimapsize\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (i = 0; i < pdata->gpimapsize; i++) {
|
|
unsigned short pin = pdata->gpimap[i].pin;
|
|
|
|
if (pin < ADP5589_GPI_PIN_BASE || pin > ADP5589_GPI_PIN_END) {
|
|
dev_err(&client->dev, "invalid gpi pin data\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if ((1 << (pin - ADP5589_GPI_PIN_ROW_BASE)) &
|
|
pdata->keypad_en_mask) {
|
|
dev_err(&client->dev, "invalid gpi row/col data\n");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (!client->irq) {
|
|
dev_err(&client->dev, "no IRQ?\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
kpad = kzalloc(sizeof(*kpad), GFP_KERNEL);
|
|
input = input_allocate_device();
|
|
if (!kpad || !input) {
|
|
error = -ENOMEM;
|
|
goto err_free_mem;
|
|
}
|
|
|
|
kpad->client = client;
|
|
kpad->input = input;
|
|
|
|
ret = adp5589_read(client, ADP5589_ID);
|
|
if (ret < 0) {
|
|
error = ret;
|
|
goto err_free_mem;
|
|
}
|
|
|
|
revid = (u8) ret & ADP5589_DEVICE_ID_MASK;
|
|
|
|
input->name = client->name;
|
|
input->phys = "adp5589-keys/input0";
|
|
input->dev.parent = &client->dev;
|
|
|
|
input_set_drvdata(input, kpad);
|
|
|
|
input->id.bustype = BUS_I2C;
|
|
input->id.vendor = 0x0001;
|
|
input->id.product = 0x0001;
|
|
input->id.version = revid;
|
|
|
|
input->keycodesize = sizeof(kpad->keycode[0]);
|
|
input->keycodemax = pdata->keymapsize;
|
|
input->keycode = kpad->keycode;
|
|
|
|
memcpy(kpad->keycode, pdata->keymap,
|
|
pdata->keymapsize * input->keycodesize);
|
|
|
|
kpad->gpimap = pdata->gpimap;
|
|
kpad->gpimapsize = pdata->gpimapsize;
|
|
|
|
/* 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(kpad->keycode[i] & KEY_MAX, input->keybit);
|
|
__clear_bit(KEY_RESERVED, input->keybit);
|
|
|
|
if (kpad->gpimapsize)
|
|
__set_bit(EV_SW, input->evbit);
|
|
for (i = 0; i < kpad->gpimapsize; i++)
|
|
__set_bit(kpad->gpimap[i].sw_evt, input->swbit);
|
|
|
|
error = input_register_device(input);
|
|
if (error) {
|
|
dev_err(&client->dev, "unable to register input device\n");
|
|
goto err_free_mem;
|
|
}
|
|
|
|
error = request_threaded_irq(client->irq, NULL, adp5589_irq,
|
|
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
|
|
client->dev.driver->name, kpad);
|
|
if (error) {
|
|
dev_err(&client->dev, "irq %d busy?\n", client->irq);
|
|
goto err_unreg_dev;
|
|
}
|
|
|
|
error = adp5589_setup(kpad);
|
|
if (error)
|
|
goto err_free_irq;
|
|
|
|
if (kpad->gpimapsize)
|
|
adp5589_report_switch_state(kpad);
|
|
|
|
error = adp5589_gpio_add(kpad);
|
|
if (error)
|
|
goto err_free_irq;
|
|
|
|
device_init_wakeup(&client->dev, 1);
|
|
i2c_set_clientdata(client, kpad);
|
|
|
|
dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq);
|
|
return 0;
|
|
|
|
err_free_irq:
|
|
free_irq(client->irq, kpad);
|
|
err_unreg_dev:
|
|
input_unregister_device(input);
|
|
input = NULL;
|
|
err_free_mem:
|
|
input_free_device(input);
|
|
kfree(kpad);
|
|
|
|
return error;
|
|
}
|
|
|
|
static int __devexit adp5589_remove(struct i2c_client *client)
|
|
{
|
|
struct adp5589_kpad *kpad = i2c_get_clientdata(client);
|
|
|
|
adp5589_write(client, ADP5589_GENERAL_CFG, 0);
|
|
free_irq(client->irq, kpad);
|
|
input_unregister_device(kpad->input);
|
|
adp5589_gpio_remove(kpad);
|
|
kfree(kpad);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
static int adp5589_suspend(struct device *dev)
|
|
{
|
|
struct adp5589_kpad *kpad = dev_get_drvdata(dev);
|
|
struct i2c_client *client = kpad->client;
|
|
|
|
disable_irq(client->irq);
|
|
|
|
if (device_may_wakeup(&client->dev))
|
|
enable_irq_wake(client->irq);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int adp5589_resume(struct device *dev)
|
|
{
|
|
struct adp5589_kpad *kpad = dev_get_drvdata(dev);
|
|
struct i2c_client *client = kpad->client;
|
|
|
|
if (device_may_wakeup(&client->dev))
|
|
disable_irq_wake(client->irq);
|
|
|
|
enable_irq(client->irq);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static SIMPLE_DEV_PM_OPS(adp5589_dev_pm_ops, adp5589_suspend, adp5589_resume);
|
|
|
|
static const struct i2c_device_id adp5589_id[] = {
|
|
{"adp5589-keys", 0},
|
|
{}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(i2c, adp5589_id);
|
|
|
|
static struct i2c_driver adp5589_driver = {
|
|
.driver = {
|
|
.name = KBUILD_MODNAME,
|
|
.owner = THIS_MODULE,
|
|
.pm = &adp5589_dev_pm_ops,
|
|
},
|
|
.probe = adp5589_probe,
|
|
.remove = __devexit_p(adp5589_remove),
|
|
.id_table = adp5589_id,
|
|
};
|
|
|
|
static int __init adp5589_init(void)
|
|
{
|
|
return i2c_add_driver(&adp5589_driver);
|
|
}
|
|
module_init(adp5589_init);
|
|
|
|
static void __exit adp5589_exit(void)
|
|
{
|
|
i2c_del_driver(&adp5589_driver);
|
|
}
|
|
module_exit(adp5589_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
|
|
MODULE_DESCRIPTION("ADP5589 Keypad driver");
|