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Input: ADP5589 - new driver for I2C Keypad Decoder and I/O Expander
From http://www.analog.com/ADP5589: The ADP5589 is an I/O port expander and keypad matrix decoder designed for QWERTY type phones that require a large keypad matrix and expanded I/O lines. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Michael Hennerich
Dmitry Torokhov
parent
891e376b1e
commit
9d2e173644
4 changed files with 995 additions and 0 deletions
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@ -32,6 +32,16 @@ config KEYBOARD_ADP5588
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To compile this driver as a module, choose M here: the
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module will be called adp5588-keys.
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config KEYBOARD_ADP5589
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tristate "ADP5589 I2C QWERTY Keypad and IO Expander"
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depends on I2C
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help
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Say Y here if you want to use a ADP5589 attached to your
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system I2C bus.
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To compile this driver as a module, choose M here: the
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module will be called adp5589-keys.
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config KEYBOARD_AMIGA
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tristate "Amiga keyboard"
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depends on AMIGA
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@ -6,6 +6,7 @@
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obj-$(CONFIG_KEYBOARD_ADP5520) += adp5520-keys.o
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obj-$(CONFIG_KEYBOARD_ADP5588) += adp5588-keys.o
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obj-$(CONFIG_KEYBOARD_ADP5589) += adp5589-keys.o
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obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o
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obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o
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obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o
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771
drivers/input/keyboard/adp5589-keys.c
Normal file
771
drivers/input/keyboard/adp5589-keys.c
Normal file
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@ -0,0 +1,771 @@
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/*
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* Description: keypad driver for ADP5589
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* I2C QWERTY Keypad and IO Expander
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* Bugs: Enter bugs at http://blackfin.uclinux.org/
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*
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* Copyright (C) 2010-2011 Analog Devices Inc.
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* Licensed under the GPL-2.
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*/
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#include <linux/module.h>
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#include <linux/version.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/workqueue.h>
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#include <linux/errno.h>
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#include <linux/pm.h>
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#include <linux/platform_device.h>
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#include <linux/input.h>
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#include <linux/i2c.h>
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#include <linux/gpio.h>
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#include <linux/slab.h>
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#include <linux/input/adp5589.h>
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/* GENERAL_CFG Register */
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#define OSC_EN (1 << 7)
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#define CORE_CLK(x) (((x) & 0x3) << 5)
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#define LCK_TRK_LOGIC (1 << 4)
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#define LCK_TRK_GPI (1 << 3)
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#define INT_CFG (1 << 1)
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#define RST_CFG (1 << 0)
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/* INT_EN Register */
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#define LOGIC2_IEN (1 << 5)
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#define LOGIC1_IEN (1 << 4)
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#define LOCK_IEN (1 << 3)
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#define OVRFLOW_IEN (1 << 2)
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#define GPI_IEN (1 << 1)
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#define EVENT_IEN (1 << 0)
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/* Interrupt Status Register */
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#define LOGIC2_INT (1 << 5)
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#define LOGIC1_INT (1 << 4)
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#define LOCK_INT (1 << 3)
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#define OVRFLOW_INT (1 << 2)
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#define GPI_INT (1 << 1)
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#define EVENT_INT (1 << 0)
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/* STATUS Register */
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#define LOGIC2_STAT (1 << 7)
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#define LOGIC1_STAT (1 << 6)
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#define LOCK_STAT (1 << 5)
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#define KEC 0xF
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/* PIN_CONFIG_D Register */
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#define C4_EXTEND_CFG (1 << 6) /* RESET2 */
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#define R4_EXTEND_CFG (1 << 5) /* RESET1 */
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/* LOCK_CFG */
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#define LOCK_EN (1 << 0)
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#define PTIME_MASK 0x3
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#define LTIME_MASK 0x3
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/* Key Event Register xy */
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#define KEY_EV_PRESSED (1 << 7)
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#define KEY_EV_MASK (0x7F)
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#define KEYP_MAX_EVENT 16
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#define MAXGPIO 19
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#define ADP_BANK(offs) ((offs) >> 3)
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#define ADP_BIT(offs) (1u << ((offs) & 0x7))
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struct adp5589_kpad {
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struct i2c_client *client;
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struct input_dev *input;
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unsigned short keycode[ADP5589_KEYMAPSIZE];
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const struct adp5589_gpi_map *gpimap;
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unsigned short gpimapsize;
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unsigned extend_cfg;
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#ifdef CONFIG_GPIOLIB
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unsigned char gpiomap[MAXGPIO];
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bool export_gpio;
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struct gpio_chip gc;
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struct mutex gpio_lock; /* Protect cached dir, dat_out */
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u8 dat_out[3];
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u8 dir[3];
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#endif
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};
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static int adp5589_read(struct i2c_client *client, u8 reg)
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{
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int ret = i2c_smbus_read_byte_data(client, reg);
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if (ret < 0)
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dev_err(&client->dev, "Read Error\n");
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return ret;
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}
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static int adp5589_write(struct i2c_client *client, u8 reg, u8 val)
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{
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return i2c_smbus_write_byte_data(client, reg, val);
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}
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#ifdef CONFIG_GPIOLIB
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static int adp5589_gpio_get_value(struct gpio_chip *chip, unsigned off)
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{
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struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
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unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
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unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
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return !!(adp5589_read(kpad->client, ADP5589_GPI_STATUS_A + bank) &
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bit);
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}
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static void adp5589_gpio_set_value(struct gpio_chip *chip,
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unsigned off, int val)
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{
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struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
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unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
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unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
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mutex_lock(&kpad->gpio_lock);
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if (val)
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kpad->dat_out[bank] |= bit;
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else
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kpad->dat_out[bank] &= ~bit;
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adp5589_write(kpad->client, ADP5589_GPO_DATA_OUT_A + bank,
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kpad->dat_out[bank]);
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mutex_unlock(&kpad->gpio_lock);
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}
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static int adp5589_gpio_direction_input(struct gpio_chip *chip, unsigned off)
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{
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struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
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unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
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unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
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int ret;
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mutex_lock(&kpad->gpio_lock);
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kpad->dir[bank] &= ~bit;
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ret = adp5589_write(kpad->client, ADP5589_GPIO_DIRECTION_A + bank,
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kpad->dir[bank]);
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mutex_unlock(&kpad->gpio_lock);
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return ret;
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}
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static int adp5589_gpio_direction_output(struct gpio_chip *chip,
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unsigned off, int val)
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{
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struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
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unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
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unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
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int ret;
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mutex_lock(&kpad->gpio_lock);
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kpad->dir[bank] |= bit;
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if (val)
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kpad->dat_out[bank] |= bit;
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else
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kpad->dat_out[bank] &= ~bit;
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ret = adp5589_write(kpad->client, ADP5589_GPO_DATA_OUT_A + bank,
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kpad->dat_out[bank]);
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ret |= adp5589_write(kpad->client, ADP5589_GPIO_DIRECTION_A + bank,
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kpad->dir[bank]);
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mutex_unlock(&kpad->gpio_lock);
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return ret;
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}
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static int __devinit adp5589_build_gpiomap(struct adp5589_kpad *kpad,
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const struct adp5589_kpad_platform_data *pdata)
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{
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bool pin_used[MAXGPIO];
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int n_unused = 0;
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int i;
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memset(pin_used, false, sizeof(pin_used));
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for (i = 0; i < MAXGPIO; i++)
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if (pdata->keypad_en_mask & (1 << i))
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pin_used[i] = true;
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for (i = 0; i < kpad->gpimapsize; i++)
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pin_used[kpad->gpimap[i].pin - ADP5589_GPI_PIN_BASE] = true;
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if (kpad->extend_cfg & R4_EXTEND_CFG)
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pin_used[4] = true;
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if (kpad->extend_cfg & C4_EXTEND_CFG)
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pin_used[12] = true;
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for (i = 0; i < MAXGPIO; i++)
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if (!pin_used[i])
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kpad->gpiomap[n_unused++] = i;
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return n_unused;
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}
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static int __devinit adp5589_gpio_add(struct adp5589_kpad *kpad)
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{
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struct device *dev = &kpad->client->dev;
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const struct adp5589_kpad_platform_data *pdata = dev->platform_data;
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const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
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int i, error;
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if (!gpio_data)
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return 0;
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kpad->gc.ngpio = adp5589_build_gpiomap(kpad, pdata);
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if (kpad->gc.ngpio == 0) {
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dev_info(dev, "No unused gpios left to export\n");
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return 0;
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}
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kpad->export_gpio = true;
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kpad->gc.direction_input = adp5589_gpio_direction_input;
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kpad->gc.direction_output = adp5589_gpio_direction_output;
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kpad->gc.get = adp5589_gpio_get_value;
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kpad->gc.set = adp5589_gpio_set_value;
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kpad->gc.can_sleep = 1;
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kpad->gc.base = gpio_data->gpio_start;
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kpad->gc.label = kpad->client->name;
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kpad->gc.owner = THIS_MODULE;
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mutex_init(&kpad->gpio_lock);
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error = gpiochip_add(&kpad->gc);
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if (error) {
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dev_err(dev, "gpiochip_add failed, err: %d\n", error);
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return error;
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}
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for (i = 0; i <= ADP_BANK(MAXGPIO); i++) {
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kpad->dat_out[i] = adp5589_read(kpad->client,
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ADP5589_GPO_DATA_OUT_A + i);
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kpad->dir[i] = adp5589_read(kpad->client,
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ADP5589_GPIO_DIRECTION_A + i);
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}
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if (gpio_data->setup) {
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error = gpio_data->setup(kpad->client,
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kpad->gc.base, kpad->gc.ngpio,
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gpio_data->context);
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if (error)
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dev_warn(dev, "setup failed, %d\n", error);
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}
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return 0;
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}
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static void __devexit adp5589_gpio_remove(struct adp5589_kpad *kpad)
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{
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struct device *dev = &kpad->client->dev;
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const struct adp5589_kpad_platform_data *pdata = dev->platform_data;
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const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
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int error;
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if (!kpad->export_gpio)
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return;
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if (gpio_data->teardown) {
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error = gpio_data->teardown(kpad->client,
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kpad->gc.base, kpad->gc.ngpio,
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gpio_data->context);
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if (error)
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dev_warn(dev, "teardown failed %d\n", error);
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}
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error = gpiochip_remove(&kpad->gc);
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if (error)
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dev_warn(dev, "gpiochip_remove failed %d\n", error);
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}
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#else
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static inline int adp5589_gpio_add(struct adp5589_kpad *kpad)
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{
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return 0;
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}
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static inline void adp5589_gpio_remove(struct adp5589_kpad *kpad)
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{
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}
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#endif
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static void adp5589_report_switches(struct adp5589_kpad *kpad,
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int key, int key_val)
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{
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int i;
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for (i = 0; i < kpad->gpimapsize; i++) {
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if (key_val == kpad->gpimap[i].pin) {
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input_report_switch(kpad->input,
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kpad->gpimap[i].sw_evt,
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key & KEY_EV_PRESSED);
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break;
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}
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}
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}
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static void adp5589_report_events(struct adp5589_kpad *kpad, int ev_cnt)
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{
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int i;
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for (i = 0; i < ev_cnt; i++) {
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int key = adp5589_read(kpad->client, ADP5589_FIFO_1 + i);
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int key_val = key & KEY_EV_MASK;
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if (key_val >= ADP5589_GPI_PIN_BASE &&
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key_val <= ADP5589_GPI_PIN_END) {
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adp5589_report_switches(kpad, key, key_val);
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} else {
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input_report_key(kpad->input,
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kpad->keycode[key_val - 1],
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key & KEY_EV_PRESSED);
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}
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}
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}
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static irqreturn_t adp5589_irq(int irq, void *handle)
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{
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struct adp5589_kpad *kpad = handle;
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struct i2c_client *client = kpad->client;
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int status, ev_cnt;
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status = adp5589_read(client, ADP5589_INT_STATUS);
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if (status & OVRFLOW_INT) /* Unlikely and should never happen */
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dev_err(&client->dev, "Event Overflow Error\n");
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if (status & EVENT_INT) {
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ev_cnt = adp5589_read(client, ADP5589_STATUS) & KEC;
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if (ev_cnt) {
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adp5589_report_events(kpad, ev_cnt);
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input_sync(kpad->input);
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}
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}
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adp5589_write(client, ADP5589_INT_STATUS, status); /* Status is W1C */
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return IRQ_HANDLED;
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}
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static int __devinit adp5589_get_evcode(struct adp5589_kpad *kpad, unsigned short key)
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{
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int i;
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for (i = 0; i < ADP5589_KEYMAPSIZE; i++)
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if (key == kpad->keycode[i])
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return (i + 1) | KEY_EV_PRESSED;
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dev_err(&kpad->client->dev, "RESET/UNLOCK key not in keycode map\n");
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return -EINVAL;
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}
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static int __devinit adp5589_setup(struct adp5589_kpad *kpad)
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{
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struct i2c_client *client = kpad->client;
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const struct adp5589_kpad_platform_data *pdata =
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client->dev.platform_data;
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int i, ret;
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unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
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unsigned char pull_mask = 0;
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ret = adp5589_write(client, ADP5589_PIN_CONFIG_A,
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pdata->keypad_en_mask & 0xFF);
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ret |= adp5589_write(client, ADP5589_PIN_CONFIG_B,
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(pdata->keypad_en_mask >> 8) & 0xFF);
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ret |= adp5589_write(client, ADP5589_PIN_CONFIG_C,
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(pdata->keypad_en_mask >> 16) & 0xFF);
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if (pdata->en_keylock) {
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ret |= adp5589_write(client, ADP5589_UNLOCK1,
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pdata->unlock_key1);
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ret |= adp5589_write(client, ADP5589_UNLOCK2,
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pdata->unlock_key2);
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ret |= adp5589_write(client, ADP5589_UNLOCK_TIMERS,
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pdata->unlock_timer & LTIME_MASK);
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ret |= adp5589_write(client, ADP5589_LOCK_CFG, LOCK_EN);
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}
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for (i = 0; i < KEYP_MAX_EVENT; i++)
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ret |= adp5589_read(client, ADP5589_FIFO_1 + i);
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for (i = 0; i < pdata->gpimapsize; i++) {
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unsigned short pin = pdata->gpimap[i].pin;
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if (pin <= ADP5589_GPI_PIN_ROW_END) {
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evt_mode1 |= (1 << (pin - ADP5589_GPI_PIN_ROW_BASE));
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} else {
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evt_mode2 |=
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((1 << (pin - ADP5589_GPI_PIN_COL_BASE)) & 0xFF);
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evt_mode3 |=
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((1 << (pin - ADP5589_GPI_PIN_COL_BASE)) >> 8);
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||||
}
|
||||
}
|
||||
|
||||
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");
|
||||
213
include/linux/input/adp5589.h
Normal file
213
include/linux/input/adp5589.h
Normal file
|
|
@ -0,0 +1,213 @@
|
|||
/*
|
||||
* Analog Devices ADP5589 I/O Expander and QWERTY Keypad Controller
|
||||
*
|
||||
* Copyright 2010-2011 Analog Devices Inc.
|
||||
*
|
||||
* Licensed under the GPL-2.
|
||||
*/
|
||||
|
||||
#ifndef _ADP5589_H
|
||||
#define _ADP5589_H
|
||||
|
||||
#define ADP5589_ID 0x00
|
||||
#define ADP5589_INT_STATUS 0x01
|
||||
#define ADP5589_STATUS 0x02
|
||||
#define ADP5589_FIFO_1 0x03
|
||||
#define ADP5589_FIFO_2 0x04
|
||||
#define ADP5589_FIFO_3 0x05
|
||||
#define ADP5589_FIFO_4 0x06
|
||||
#define ADP5589_FIFO_5 0x07
|
||||
#define ADP5589_FIFO_6 0x08
|
||||
#define ADP5589_FIFO_7 0x09
|
||||
#define ADP5589_FIFO_8 0x0A
|
||||
#define ADP5589_FIFO_9 0x0B
|
||||
#define ADP5589_FIFO_10 0x0C
|
||||
#define ADP5589_FIFO_11 0x0D
|
||||
#define ADP5589_FIFO_12 0x0E
|
||||
#define ADP5589_FIFO_13 0x0F
|
||||
#define ADP5589_FIFO_14 0x10
|
||||
#define ADP5589_FIFO_15 0x11
|
||||
#define ADP5589_FIFO_16 0x12
|
||||
#define ADP5589_GPI_INT_STAT_A 0x13
|
||||
#define ADP5589_GPI_INT_STAT_B 0x14
|
||||
#define ADP5589_GPI_INT_STAT_C 0x15
|
||||
#define ADP5589_GPI_STATUS_A 0x16
|
||||
#define ADP5589_GPI_STATUS_B 0x17
|
||||
#define ADP5589_GPI_STATUS_C 0x18
|
||||
#define ADP5589_RPULL_CONFIG_A 0x19
|
||||
#define ADP5589_RPULL_CONFIG_B 0x1A
|
||||
#define ADP5589_RPULL_CONFIG_C 0x1B
|
||||
#define ADP5589_RPULL_CONFIG_D 0x1C
|
||||
#define ADP5589_RPULL_CONFIG_E 0x1D
|
||||
#define ADP5589_GPI_INT_LEVEL_A 0x1E
|
||||
#define ADP5589_GPI_INT_LEVEL_B 0x1F
|
||||
#define ADP5589_GPI_INT_LEVEL_C 0x20
|
||||
#define ADP5589_GPI_EVENT_EN_A 0x21
|
||||
#define ADP5589_GPI_EVENT_EN_B 0x22
|
||||
#define ADP5589_GPI_EVENT_EN_C 0x23
|
||||
#define ADP5589_GPI_INTERRUPT_EN_A 0x24
|
||||
#define ADP5589_GPI_INTERRUPT_EN_B 0x25
|
||||
#define ADP5589_GPI_INTERRUPT_EN_C 0x26
|
||||
#define ADP5589_DEBOUNCE_DIS_A 0x27
|
||||
#define ADP5589_DEBOUNCE_DIS_B 0x28
|
||||
#define ADP5589_DEBOUNCE_DIS_C 0x29
|
||||
#define ADP5589_GPO_DATA_OUT_A 0x2A
|
||||
#define ADP5589_GPO_DATA_OUT_B 0x2B
|
||||
#define ADP5589_GPO_DATA_OUT_C 0x2C
|
||||
#define ADP5589_GPO_OUT_MODE_A 0x2D
|
||||
#define ADP5589_GPO_OUT_MODE_B 0x2E
|
||||
#define ADP5589_GPO_OUT_MODE_C 0x2F
|
||||
#define ADP5589_GPIO_DIRECTION_A 0x30
|
||||
#define ADP5589_GPIO_DIRECTION_B 0x31
|
||||
#define ADP5589_GPIO_DIRECTION_C 0x32
|
||||
#define ADP5589_UNLOCK1 0x33
|
||||
#define ADP5589_UNLOCK2 0x34
|
||||
#define ADP5589_EXT_LOCK_EVENT 0x35
|
||||
#define ADP5589_UNLOCK_TIMERS 0x36
|
||||
#define ADP5589_LOCK_CFG 0x37
|
||||
#define ADP5589_RESET1_EVENT_A 0x38
|
||||
#define ADP5589_RESET1_EVENT_B 0x39
|
||||
#define ADP5589_RESET1_EVENT_C 0x3A
|
||||
#define ADP5589_RESET2_EVENT_A 0x3B
|
||||
#define ADP5589_RESET2_EVENT_B 0x3C
|
||||
#define ADP5589_RESET_CFG 0x3D
|
||||
#define ADP5589_PWM_OFFT_LOW 0x3E
|
||||
#define ADP5589_PWM_OFFT_HIGH 0x3F
|
||||
#define ADP5589_PWM_ONT_LOW 0x40
|
||||
#define ADP5589_PWM_ONT_HIGH 0x41
|
||||
#define ADP5589_PWM_CFG 0x42
|
||||
#define ADP5589_CLOCK_DIV_CFG 0x43
|
||||
#define ADP5589_LOGIC_1_CFG 0x44
|
||||
#define ADP5589_LOGIC_2_CFG 0x45
|
||||
#define ADP5589_LOGIC_FF_CFG 0x46
|
||||
#define ADP5589_LOGIC_INT_EVENT_EN 0x47
|
||||
#define ADP5589_POLL_PTIME_CFG 0x48
|
||||
#define ADP5589_PIN_CONFIG_A 0x49
|
||||
#define ADP5589_PIN_CONFIG_B 0x4A
|
||||
#define ADP5589_PIN_CONFIG_C 0x4B
|
||||
#define ADP5589_PIN_CONFIG_D 0x4C
|
||||
#define ADP5589_GENERAL_CFG 0x4D
|
||||
#define ADP5589_INT_EN 0x4E
|
||||
|
||||
#define ADP5589_DEVICE_ID_MASK 0xF
|
||||
|
||||
/* Put one of these structures in i2c_board_info platform_data */
|
||||
|
||||
#define ADP5589_KEYMAPSIZE 88
|
||||
|
||||
#define ADP5589_GPI_PIN_ROW0 97
|
||||
#define ADP5589_GPI_PIN_ROW1 98
|
||||
#define ADP5589_GPI_PIN_ROW2 99
|
||||
#define ADP5589_GPI_PIN_ROW3 100
|
||||
#define ADP5589_GPI_PIN_ROW4 101
|
||||
#define ADP5589_GPI_PIN_ROW5 102
|
||||
#define ADP5589_GPI_PIN_ROW6 103
|
||||
#define ADP5589_GPI_PIN_ROW7 104
|
||||
#define ADP5589_GPI_PIN_COL0 105
|
||||
#define ADP5589_GPI_PIN_COL1 106
|
||||
#define ADP5589_GPI_PIN_COL2 107
|
||||
#define ADP5589_GPI_PIN_COL3 108
|
||||
#define ADP5589_GPI_PIN_COL4 109
|
||||
#define ADP5589_GPI_PIN_COL5 110
|
||||
#define ADP5589_GPI_PIN_COL6 111
|
||||
#define ADP5589_GPI_PIN_COL7 112
|
||||
#define ADP5589_GPI_PIN_COL8 113
|
||||
#define ADP5589_GPI_PIN_COL9 114
|
||||
#define ADP5589_GPI_PIN_COL10 115
|
||||
#define GPI_LOGIC1 116
|
||||
#define GPI_LOGIC2 117
|
||||
|
||||
#define ADP5589_GPI_PIN_ROW_BASE ADP5589_GPI_PIN_ROW0
|
||||
#define ADP5589_GPI_PIN_ROW_END ADP5589_GPI_PIN_ROW7
|
||||
#define ADP5589_GPI_PIN_COL_BASE ADP5589_GPI_PIN_COL0
|
||||
#define ADP5589_GPI_PIN_COL_END ADP5589_GPI_PIN_COL10
|
||||
|
||||
#define ADP5589_GPI_PIN_BASE ADP5589_GPI_PIN_ROW_BASE
|
||||
#define ADP5589_GPI_PIN_END ADP5589_GPI_PIN_COL_END
|
||||
|
||||
#define ADP5589_GPIMAPSIZE_MAX (ADP5589_GPI_PIN_END - ADP5589_GPI_PIN_BASE + 1)
|
||||
|
||||
struct adp5589_gpi_map {
|
||||
unsigned short pin;
|
||||
unsigned short sw_evt;
|
||||
};
|
||||
|
||||
/* scan_cycle_time */
|
||||
#define ADP5589_SCAN_CYCLE_10ms 0
|
||||
#define ADP5589_SCAN_CYCLE_20ms 1
|
||||
#define ADP5589_SCAN_CYCLE_30ms 2
|
||||
#define ADP5589_SCAN_CYCLE_40ms 3
|
||||
|
||||
/* RESET_CFG */
|
||||
#define RESET_PULSE_WIDTH_500us 0
|
||||
#define RESET_PULSE_WIDTH_1ms 1
|
||||
#define RESET_PULSE_WIDTH_2ms 2
|
||||
#define RESET_PULSE_WIDTH_10ms 3
|
||||
|
||||
#define RESET_TRIG_TIME_0ms (0 << 2)
|
||||
#define RESET_TRIG_TIME_1000ms (1 << 2)
|
||||
#define RESET_TRIG_TIME_1500ms (2 << 2)
|
||||
#define RESET_TRIG_TIME_2000ms (3 << 2)
|
||||
#define RESET_TRIG_TIME_2500ms (4 << 2)
|
||||
#define RESET_TRIG_TIME_3000ms (5 << 2)
|
||||
#define RESET_TRIG_TIME_3500ms (6 << 2)
|
||||
#define RESET_TRIG_TIME_4000ms (7 << 2)
|
||||
|
||||
#define RESET_PASSTHRU_EN (1 << 5)
|
||||
#define RESET1_POL_HIGH (1 << 6)
|
||||
#define RESET1_POL_LOW (0 << 6)
|
||||
#define RESET2_POL_HIGH (1 << 7)
|
||||
#define RESET2_POL_LOW (0 << 7)
|
||||
|
||||
/* Mask Bits:
|
||||
* C C C C C C C C C C C | R R R R R R R R
|
||||
* 1 9 8 7 6 5 4 3 2 1 0 | 7 6 5 4 3 2 1 0
|
||||
* 0
|
||||
* ---------------- BIT ------------------
|
||||
* 1 1 1 1 1 1 1 1 1 0 0 | 0 0 0 0 0 0 0 0
|
||||
* 8 7 6 5 4 3 2 1 0 9 8 | 7 6 5 4 3 2 1 0
|
||||
*/
|
||||
|
||||
#define ADP_ROW(x) (1 << (x))
|
||||
#define ADP_COL(x) (1 << (x + 8))
|
||||
|
||||
struct adp5589_kpad_platform_data {
|
||||
unsigned keypad_en_mask; /* Keypad (Rows/Columns) enable mask */
|
||||
const unsigned short *keymap; /* Pointer to keymap */
|
||||
unsigned short keymapsize; /* Keymap size */
|
||||
bool repeat; /* Enable key repeat */
|
||||
bool en_keylock; /* Enable key lock feature */
|
||||
unsigned char unlock_key1; /* Unlock Key 1 */
|
||||
unsigned char unlock_key2; /* Unlock Key 2 */
|
||||
unsigned char unlock_timer; /* Time in seconds [0..7] between the two unlock keys 0=disable */
|
||||
unsigned char scan_cycle_time; /* Time between consecutive scan cycles */
|
||||
unsigned char reset_cfg; /* Reset config */
|
||||
unsigned short reset1_key_1; /* Reset Key 1 */
|
||||
unsigned short reset1_key_2; /* Reset Key 2 */
|
||||
unsigned short reset1_key_3; /* Reset Key 3 */
|
||||
unsigned short reset2_key_1; /* Reset Key 1 */
|
||||
unsigned short reset2_key_2; /* Reset Key 2 */
|
||||
unsigned debounce_dis_mask; /* Disable debounce mask */
|
||||
unsigned pull_dis_mask; /* Disable all pull resistors mask */
|
||||
unsigned pullup_en_100k; /* Pull-Up 100k Enable Mask */
|
||||
unsigned pullup_en_300k; /* Pull-Up 300k Enable Mask */
|
||||
unsigned pulldown_en_300k; /* Pull-Down 300k Enable Mask */
|
||||
const struct adp5589_gpi_map *gpimap;
|
||||
unsigned short gpimapsize;
|
||||
const struct adp5589_gpio_platform_data *gpio_data;
|
||||
};
|
||||
|
||||
struct i2c_client; /* forward declaration */
|
||||
|
||||
struct adp5589_gpio_platform_data {
|
||||
int gpio_start; /* GPIO Chip base # */
|
||||
int (*setup)(struct i2c_client *client,
|
||||
int gpio, unsigned ngpio,
|
||||
void *context);
|
||||
int (*teardown)(struct i2c_client *client,
|
||||
int gpio, unsigned ngpio,
|
||||
void *context);
|
||||
void *context;
|
||||
};
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue