+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Description: keypad driver for ADP5589, ADP5585
- * I2C QWERTY Keypad and IO Expander
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * Copyright (C) 2010-2011 Analog Devices Inc.
- */
-
-#include <linux/bitops.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/workqueue.h>
-#include <linux/errno.h>
-#include <linux/pm.h>
-#include <linux/pm_wakeirq.h>
-#include <linux/platform_device.h>
-#include <linux/input.h>
-#include <linux/i2c.h>
-#include <linux/gpio/driver.h>
-#include <linux/slab.h>
-
-#include <linux/input/adp5589.h>
-
-/* ADP5589/ADP5585 Common Registers */
-#define ADP5589_5_ID 0x00
-#define ADP5589_5_INT_STATUS 0x01
-#define ADP5589_5_STATUS 0x02
-#define ADP5589_5_FIFO_1 0x03
-#define ADP5589_5_FIFO_2 0x04
-#define ADP5589_5_FIFO_3 0x05
-#define ADP5589_5_FIFO_4 0x06
-#define ADP5589_5_FIFO_5 0x07
-#define ADP5589_5_FIFO_6 0x08
-#define ADP5589_5_FIFO_7 0x09
-#define ADP5589_5_FIFO_8 0x0A
-#define ADP5589_5_FIFO_9 0x0B
-#define ADP5589_5_FIFO_10 0x0C
-#define ADP5589_5_FIFO_11 0x0D
-#define ADP5589_5_FIFO_12 0x0E
-#define ADP5589_5_FIFO_13 0x0F
-#define ADP5589_5_FIFO_14 0x10
-#define ADP5589_5_FIFO_15 0x11
-#define ADP5589_5_FIFO_16 0x12
-#define ADP5589_5_GPI_INT_STAT_A 0x13
-#define ADP5589_5_GPI_INT_STAT_B 0x14
-
-/* ADP5589 Registers */
-#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
-
-/* ADP5585 Registers */
-#define ADP5585_GPI_STATUS_A 0x15
-#define ADP5585_GPI_STATUS_B 0x16
-#define ADP5585_RPULL_CONFIG_A 0x17
-#define ADP5585_RPULL_CONFIG_B 0x18
-#define ADP5585_RPULL_CONFIG_C 0x19
-#define ADP5585_RPULL_CONFIG_D 0x1A
-#define ADP5585_GPI_INT_LEVEL_A 0x1B
-#define ADP5585_GPI_INT_LEVEL_B 0x1C
-#define ADP5585_GPI_EVENT_EN_A 0x1D
-#define ADP5585_GPI_EVENT_EN_B 0x1E
-#define ADP5585_GPI_INTERRUPT_EN_A 0x1F
-#define ADP5585_GPI_INTERRUPT_EN_B 0x20
-#define ADP5585_DEBOUNCE_DIS_A 0x21
-#define ADP5585_DEBOUNCE_DIS_B 0x22
-#define ADP5585_GPO_DATA_OUT_A 0x23
-#define ADP5585_GPO_DATA_OUT_B 0x24
-#define ADP5585_GPO_OUT_MODE_A 0x25
-#define ADP5585_GPO_OUT_MODE_B 0x26
-#define ADP5585_GPIO_DIRECTION_A 0x27
-#define ADP5585_GPIO_DIRECTION_B 0x28
-#define ADP5585_RESET1_EVENT_A 0x29
-#define ADP5585_RESET1_EVENT_B 0x2A
-#define ADP5585_RESET1_EVENT_C 0x2B
-#define ADP5585_RESET2_EVENT_A 0x2C
-#define ADP5585_RESET2_EVENT_B 0x2D
-#define ADP5585_RESET_CFG 0x2E
-#define ADP5585_PWM_OFFT_LOW 0x2F
-#define ADP5585_PWM_OFFT_HIGH 0x30
-#define ADP5585_PWM_ONT_LOW 0x31
-#define ADP5585_PWM_ONT_HIGH 0x32
-#define ADP5585_PWM_CFG 0x33
-#define ADP5585_LOGIC_CFG 0x34
-#define ADP5585_LOGIC_FF_CFG 0x35
-#define ADP5585_LOGIC_INT_EVENT_EN 0x36
-#define ADP5585_POLL_PTIME_CFG 0x37
-#define ADP5585_PIN_CONFIG_A 0x38
-#define ADP5585_PIN_CONFIG_B 0x39
-#define ADP5585_PIN_CONFIG_D 0x3A
-#define ADP5585_GENERAL_CFG 0x3B
-#define ADP5585_INT_EN 0x3C
-
-/* ID Register */
-#define ADP5589_5_DEVICE_ID_MASK 0xF
-#define ADP5589_5_MAN_ID_MASK 0xF
-#define ADP5589_5_MAN_ID_SHIFT 4
-#define ADP5589_5_MAN_ID 0x02
-
-/* GENERAL_CFG Register */
-#define OSC_EN BIT(7)
-#define CORE_CLK(x) (((x) & 0x3) << 5)
-#define LCK_TRK_LOGIC BIT(4) /* ADP5589 only */
-#define LCK_TRK_GPI BIT(3) /* ADP5589 only */
-#define INT_CFG BIT(1)
-#define RST_CFG BIT(0)
-
-/* INT_EN Register */
-#define LOGIC2_IEN BIT(5) /* ADP5589 only */
-#define LOGIC1_IEN BIT(4)
-#define LOCK_IEN BIT(3) /* ADP5589 only */
-#define OVRFLOW_IEN BIT(2)
-#define GPI_IEN BIT(1)
-#define EVENT_IEN BIT(0)
-
-/* Interrupt Status Register */
-#define LOGIC2_INT BIT(5) /* ADP5589 only */
-#define LOGIC1_INT BIT(4)
-#define LOCK_INT BIT(3) /* ADP5589 only */
-#define OVRFLOW_INT BIT(2)
-#define GPI_INT BIT(1)
-#define EVENT_INT BIT(0)
-
-/* STATUS Register */
-#define LOGIC2_STAT BIT(7) /* ADP5589 only */
-#define LOGIC1_STAT BIT(6)
-#define LOCK_STAT BIT(5) /* ADP5589 only */
-#define KEC 0x1F
-
-/* PIN_CONFIG_D Register */
-#define C4_EXTEND_CFG BIT(6) /* RESET2 */
-#define R4_EXTEND_CFG BIT(5) /* RESET1 */
-
-/* LOCK_CFG */
-#define LOCK_EN BIT(0)
-
-#define PTIME_MASK 0x3
-#define LTIME_MASK 0x3 /* ADP5589 only */
-
-/* Key Event Register xy */
-#define KEY_EV_PRESSED BIT(7)
-#define KEY_EV_MASK 0x7F
-
-#define KEYP_MAX_EVENT 16
-#define ADP5589_MAXGPIO 19
-#define ADP5585_MAXGPIO 11 /* 10 on the ADP5585-01, 11 on ADP5585-02 */
-
-enum {
- ADP5589,
- ADP5585_01,
- ADP5585_02
-};
-
-struct adp_constants {
- u8 maxgpio;
- u8 keymapsize;
- u8 gpi_pin_row_base;
- u8 gpi_pin_row_end;
- u8 gpi_pin_col_base;
- u8 gpi_pin_base;
- u8 gpi_pin_end;
- u8 gpimapsize_max;
- u8 max_row_num;
- u8 max_col_num;
- u8 row_mask;
- u8 col_mask;
- u8 col_shift;
- u8 c4_extend_cfg;
- u8 (*bank) (u8 offset);
- u8 (*bit) (u8 offset);
- u8 (*reg) (u8 reg);
-};
-
-struct adp5589_kpad {
- struct i2c_client *client;
- struct input_dev *input;
- const struct adp_constants *var;
- unsigned short keycode[ADP5589_KEYMAPSIZE];
- const struct adp5589_gpi_map *gpimap;
- unsigned short gpimapsize;
- unsigned extend_cfg;
- bool is_adp5585;
- bool support_row5;
-#ifdef CONFIG_GPIOLIB
- unsigned char gpiomap[ADP5589_MAXGPIO];
- struct gpio_chip gc;
- struct mutex gpio_lock; /* Protect cached dir, dat_out */
- u8 dat_out[3];
- u8 dir[3];
-#endif
-};
-
-/*
- * ADP5589 / ADP5585 derivative / variant handling
- */
-
-
-/* ADP5589 */
-
-static unsigned char adp5589_bank(unsigned char offset)
-{
- return offset >> 3;
-}
-
-static unsigned char adp5589_bit(unsigned char offset)
-{
- return 1u << (offset & 0x7);
-}
-
-static unsigned char adp5589_reg(unsigned char reg)
-{
- return reg;
-}
-
-static const struct adp_constants const_adp5589 = {
- .maxgpio = ADP5589_MAXGPIO,
- .keymapsize = ADP5589_KEYMAPSIZE,
- .gpi_pin_row_base = ADP5589_GPI_PIN_ROW_BASE,
- .gpi_pin_row_end = ADP5589_GPI_PIN_ROW_END,
- .gpi_pin_col_base = ADP5589_GPI_PIN_COL_BASE,
- .gpi_pin_base = ADP5589_GPI_PIN_BASE,
- .gpi_pin_end = ADP5589_GPI_PIN_END,
- .gpimapsize_max = ADP5589_GPIMAPSIZE_MAX,
- .c4_extend_cfg = 12,
- .max_row_num = ADP5589_MAX_ROW_NUM,
- .max_col_num = ADP5589_MAX_COL_NUM,
- .row_mask = ADP5589_ROW_MASK,
- .col_mask = ADP5589_COL_MASK,
- .col_shift = ADP5589_COL_SHIFT,
- .bank = adp5589_bank,
- .bit = adp5589_bit,
- .reg = adp5589_reg,
-};
-
-/* ADP5585 */
-
-static unsigned char adp5585_bank(unsigned char offset)
-{
- return offset > ADP5585_MAX_ROW_NUM;
-}
-
-static unsigned char adp5585_bit(unsigned char offset)
-{
- return (offset > ADP5585_MAX_ROW_NUM) ?
- 1u << (offset - ADP5585_COL_SHIFT) : 1u << offset;
-}
-
-static const unsigned char adp5585_reg_lut[] = {
- [ADP5589_GPI_STATUS_A] = ADP5585_GPI_STATUS_A,
- [ADP5589_GPI_STATUS_B] = ADP5585_GPI_STATUS_B,
- [ADP5589_RPULL_CONFIG_A] = ADP5585_RPULL_CONFIG_A,
- [ADP5589_RPULL_CONFIG_B] = ADP5585_RPULL_CONFIG_B,
- [ADP5589_RPULL_CONFIG_C] = ADP5585_RPULL_CONFIG_C,
- [ADP5589_RPULL_CONFIG_D] = ADP5585_RPULL_CONFIG_D,
- [ADP5589_GPI_INT_LEVEL_A] = ADP5585_GPI_INT_LEVEL_A,
- [ADP5589_GPI_INT_LEVEL_B] = ADP5585_GPI_INT_LEVEL_B,
- [ADP5589_GPI_EVENT_EN_A] = ADP5585_GPI_EVENT_EN_A,
- [ADP5589_GPI_EVENT_EN_B] = ADP5585_GPI_EVENT_EN_B,
- [ADP5589_GPI_INTERRUPT_EN_A] = ADP5585_GPI_INTERRUPT_EN_A,
- [ADP5589_GPI_INTERRUPT_EN_B] = ADP5585_GPI_INTERRUPT_EN_B,
- [ADP5589_DEBOUNCE_DIS_A] = ADP5585_DEBOUNCE_DIS_A,
- [ADP5589_DEBOUNCE_DIS_B] = ADP5585_DEBOUNCE_DIS_B,
- [ADP5589_GPO_DATA_OUT_A] = ADP5585_GPO_DATA_OUT_A,
- [ADP5589_GPO_DATA_OUT_B] = ADP5585_GPO_DATA_OUT_B,
- [ADP5589_GPO_OUT_MODE_A] = ADP5585_GPO_OUT_MODE_A,
- [ADP5589_GPO_OUT_MODE_B] = ADP5585_GPO_OUT_MODE_B,
- [ADP5589_GPIO_DIRECTION_A] = ADP5585_GPIO_DIRECTION_A,
- [ADP5589_GPIO_DIRECTION_B] = ADP5585_GPIO_DIRECTION_B,
- [ADP5589_RESET1_EVENT_A] = ADP5585_RESET1_EVENT_A,
- [ADP5589_RESET1_EVENT_B] = ADP5585_RESET1_EVENT_B,
- [ADP5589_RESET1_EVENT_C] = ADP5585_RESET1_EVENT_C,
- [ADP5589_RESET2_EVENT_A] = ADP5585_RESET2_EVENT_A,
- [ADP5589_RESET2_EVENT_B] = ADP5585_RESET2_EVENT_B,
- [ADP5589_RESET_CFG] = ADP5585_RESET_CFG,
- [ADP5589_PWM_OFFT_LOW] = ADP5585_PWM_OFFT_LOW,
- [ADP5589_PWM_OFFT_HIGH] = ADP5585_PWM_OFFT_HIGH,
- [ADP5589_PWM_ONT_LOW] = ADP5585_PWM_ONT_LOW,
- [ADP5589_PWM_ONT_HIGH] = ADP5585_PWM_ONT_HIGH,
- [ADP5589_PWM_CFG] = ADP5585_PWM_CFG,
- [ADP5589_LOGIC_1_CFG] = ADP5585_LOGIC_CFG,
- [ADP5589_LOGIC_FF_CFG] = ADP5585_LOGIC_FF_CFG,
- [ADP5589_LOGIC_INT_EVENT_EN] = ADP5585_LOGIC_INT_EVENT_EN,
- [ADP5589_POLL_PTIME_CFG] = ADP5585_POLL_PTIME_CFG,
- [ADP5589_PIN_CONFIG_A] = ADP5585_PIN_CONFIG_A,
- [ADP5589_PIN_CONFIG_B] = ADP5585_PIN_CONFIG_B,
- [ADP5589_PIN_CONFIG_D] = ADP5585_PIN_CONFIG_D,
- [ADP5589_GENERAL_CFG] = ADP5585_GENERAL_CFG,
- [ADP5589_INT_EN] = ADP5585_INT_EN,
-};
-
-static unsigned char adp5585_reg(unsigned char reg)
-{
- return adp5585_reg_lut[reg];
-}
-
-static const struct adp_constants const_adp5585 = {
- .maxgpio = ADP5585_MAXGPIO,
- .keymapsize = ADP5585_KEYMAPSIZE,
- .gpi_pin_row_base = ADP5585_GPI_PIN_ROW_BASE,
- .gpi_pin_row_end = ADP5585_GPI_PIN_ROW_END,
- .gpi_pin_col_base = ADP5585_GPI_PIN_COL_BASE,
- .gpi_pin_base = ADP5585_GPI_PIN_BASE,
- .gpi_pin_end = ADP5585_GPI_PIN_END,
- .gpimapsize_max = ADP5585_GPIMAPSIZE_MAX,
- .c4_extend_cfg = 10,
- .max_row_num = ADP5585_MAX_ROW_NUM,
- .max_col_num = ADP5585_MAX_COL_NUM,
- .row_mask = ADP5585_ROW_MASK,
- .col_mask = ADP5585_COL_MASK,
- .col_shift = ADP5585_COL_SHIFT,
- .bank = adp5585_bank,
- .bit = adp5585_bit,
- .reg = adp5585_reg,
-};
-
-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 = gpiochip_get_data(chip);
- unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
- unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
- int val;
-
- mutex_lock(&kpad->gpio_lock);
- if (kpad->dir[bank] & bit)
- val = kpad->dat_out[bank];
- else
- val = adp5589_read(kpad->client,
- kpad->var->reg(ADP5589_GPI_STATUS_A) + bank);
- mutex_unlock(&kpad->gpio_lock);
-
- return !!(val & bit);
-}
-
-static void adp5589_gpio_set_value(struct gpio_chip *chip,
- unsigned off, int val)
-{
- struct adp5589_kpad *kpad = gpiochip_get_data(chip);
- unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
- unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
-
- guard(mutex)(&kpad->gpio_lock);
-
- if (val)
- kpad->dat_out[bank] |= bit;
- else
- kpad->dat_out[bank] &= ~bit;
-
- adp5589_write(kpad->client, kpad->var->reg(ADP5589_GPO_DATA_OUT_A) +
- bank, kpad->dat_out[bank]);
-}
-
-static int adp5589_gpio_direction_input(struct gpio_chip *chip, unsigned off)
-{
- struct adp5589_kpad *kpad = gpiochip_get_data(chip);
- unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
- unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
-
- guard(mutex)(&kpad->gpio_lock);
-
- kpad->dir[bank] &= ~bit;
- return adp5589_write(kpad->client,
- kpad->var->reg(ADP5589_GPIO_DIRECTION_A) + bank,
- kpad->dir[bank]);
-}
-
-static int adp5589_gpio_direction_output(struct gpio_chip *chip,
- unsigned off, int val)
-{
- struct adp5589_kpad *kpad = gpiochip_get_data(chip);
- unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
- unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
- int error;
-
- guard(mutex)(&kpad->gpio_lock);
-
- kpad->dir[bank] |= bit;
-
- if (val)
- kpad->dat_out[bank] |= bit;
- else
- kpad->dat_out[bank] &= ~bit;
-
- error = adp5589_write(kpad->client,
- kpad->var->reg(ADP5589_GPO_DATA_OUT_A) + bank,
- kpad->dat_out[bank]);
- if (error)
- return error;
-
- error = adp5589_write(kpad->client,
- kpad->var->reg(ADP5589_GPIO_DIRECTION_A) + bank,
- kpad->dir[bank]);
- if (error)
- return error;
-
- return 0;
-}
-
-static int adp5589_build_gpiomap(struct adp5589_kpad *kpad,
- const struct adp5589_kpad_platform_data *pdata)
-{
- bool pin_used[ADP5589_MAXGPIO];
- int n_unused = 0;
- int i;
-
- memset(pin_used, false, sizeof(pin_used));
-
- for (i = 0; i < kpad->var->maxgpio; i++)
- if (pdata->keypad_en_mask & BIT(i))
- pin_used[i] = true;
-
- for (i = 0; i < kpad->gpimapsize; i++)
- pin_used[kpad->gpimap[i].pin - kpad->var->gpi_pin_base] = true;
-
- if (kpad->extend_cfg & R4_EXTEND_CFG)
- pin_used[4] = true;
-
- if (kpad->extend_cfg & C4_EXTEND_CFG)
- pin_used[kpad->var->c4_extend_cfg] = true;
-
- if (!kpad->support_row5)
- pin_used[5] = true;
-
- for (i = 0; i < kpad->var->maxgpio; i++)
- if (!pin_used[i])
- kpad->gpiomap[n_unused++] = i;
-
- return n_unused;
-}
-
-static int adp5589_gpio_add(struct adp5589_kpad *kpad)
-{
- struct device *dev = &kpad->client->dev;
- const struct adp5589_kpad_platform_data *pdata = dev_get_platdata(dev);
- const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
- int i, error;
-
- if (!gpio_data)
- return 0;
-
- kpad->gc.parent = dev;
- 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->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 = devm_gpiochip_add_data(dev, &kpad->gc, kpad);
- if (error)
- return error;
-
- for (i = 0; i <= kpad->var->bank(kpad->var->maxgpio); i++) {
- kpad->dat_out[i] = adp5589_read(kpad->client, kpad->var->reg(
- ADP5589_GPO_DATA_OUT_A) + i);
- kpad->dir[i] = adp5589_read(kpad->client, kpad->var->reg(
- ADP5589_GPIO_DIRECTION_A) + i);
- }
-
- return 0;
-}
-#else
-static inline int adp5589_gpio_add(struct adp5589_kpad *kpad)
-{
- return 0;
-}
-#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_5_FIFO_1 + i);
- int key_val = key & KEY_EV_MASK;
-
- if (key_val >= kpad->var->gpi_pin_base &&
- key_val <= kpad->var->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_5_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_5_STATUS) & KEC;
- if (ev_cnt) {
- adp5589_report_events(kpad, ev_cnt);
- input_sync(kpad->input);
- }
- }
-
- adp5589_write(client, ADP5589_5_INT_STATUS, status); /* Status is W1C */
-
- return IRQ_HANDLED;
-}
-
-static int adp5589_get_evcode(struct adp5589_kpad *kpad, unsigned short key)
-{
- int i;
-
- for (i = 0; i < kpad->var->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 adp5589_setup(struct adp5589_kpad *kpad)
-{
- struct i2c_client *client = kpad->client;
- const struct adp5589_kpad_platform_data *pdata =
- dev_get_platdata(&client->dev);
- u8 (*reg) (u8) = kpad->var->reg;
- unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
- unsigned char pull_mask = 0;
- int i, ret;
-
- ret = adp5589_write(client, reg(ADP5589_PIN_CONFIG_A),
- pdata->keypad_en_mask & kpad->var->row_mask);
- ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_B),
- (pdata->keypad_en_mask >> kpad->var->col_shift) &
- kpad->var->col_mask);
-
- if (!kpad->is_adp5585)
- ret |= adp5589_write(client, ADP5589_PIN_CONFIG_C,
- (pdata->keypad_en_mask >> 16) & 0xFF);
-
- if (!kpad->is_adp5585 && 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_5_FIFO_1 + i);
-
- for (i = 0; i < pdata->gpimapsize; i++) {
- unsigned short pin = pdata->gpimap[i].pin;
-
- if (pin <= kpad->var->gpi_pin_row_end) {
- evt_mode1 |= BIT(pin - kpad->var->gpi_pin_row_base);
- } else {
- evt_mode2 |=
- BIT(pin - kpad->var->gpi_pin_col_base) & 0xFF;
- if (!kpad->is_adp5585)
- evt_mode3 |=
- BIT(pin - kpad->var->gpi_pin_col_base) >> 8;
- }
- }
-
- if (pdata->gpimapsize) {
- ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_A),
- evt_mode1);
- ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_B),
- evt_mode2);
- if (!kpad->is_adp5585)
- ret |= adp5589_write(client,
- reg(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 <= kpad->var->max_row_num; i++) {
- unsigned int val = 0, bit = BIT(i);
- if (pdata->pullup_en_300k & bit)
- val = 0;
- else if (pdata->pulldown_en_300k & bit)
- val = 1;
- else if (pdata->pullup_en_100k & bit)
- val = 2;
- else if (pdata->pull_dis_mask & bit)
- val = 3;
-
- pull_mask |= val << (2 * (i & 0x3));
-
- if (i % 4 == 3 || i == kpad->var->max_row_num) {
- ret |= adp5589_write(client, reg(ADP5585_RPULL_CONFIG_A)
- + (i >> 2), pull_mask);
- pull_mask = 0;
- }
- }
-
- for (i = 0; i <= kpad->var->max_col_num; i++) {
- unsigned int val = 0, bit = BIT(i + kpad->var->col_shift);
- if (pdata->pullup_en_300k & bit)
- val = 0;
- else if (pdata->pulldown_en_300k & bit)
- val = 1;
- else if (pdata->pullup_en_100k & bit)
- val = 2;
- else if (pdata->pull_dis_mask & bit)
- val = 3;
-
- pull_mask |= val << (2 * (i & 0x3));
-
- if (i % 4 == 3 || i == kpad->var->max_col_num) {
- ret |= adp5589_write(client,
- reg(ADP5585_RPULL_CONFIG_C) +
- (i >> 2), pull_mask);
- pull_mask = 0;
- }
- }
-
- if (pdata->reset1_key_1 && pdata->reset1_key_2 && pdata->reset1_key_3) {
- ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_A),
- adp5589_get_evcode(kpad,
- pdata->reset1_key_1));
- ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_B),
- adp5589_get_evcode(kpad,
- pdata->reset1_key_2));
- ret |= adp5589_write(client, reg(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, reg(ADP5589_RESET2_EVENT_A),
- adp5589_get_evcode(kpad,
- pdata->reset2_key_1));
- ret |= adp5589_write(client, reg(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, reg(ADP5589_RESET_CFG),
- pdata->reset_cfg);
- ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_D),
- kpad->extend_cfg);
- }
-
- ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_A),
- pdata->debounce_dis_mask & kpad->var->row_mask);
-
- ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_B),
- (pdata->debounce_dis_mask >> kpad->var->col_shift)
- & kpad->var->col_mask);
-
- if (!kpad->is_adp5585)
- ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_C),
- (pdata->debounce_dis_mask >> 16) & 0xFF);
-
- ret |= adp5589_write(client, reg(ADP5589_POLL_PTIME_CFG),
- pdata->scan_cycle_time & PTIME_MASK);
- ret |= adp5589_write(client, ADP5589_5_INT_STATUS,
- (kpad->is_adp5585 ? 0 : LOGIC2_INT) |
- LOGIC1_INT | OVRFLOW_INT |
- (kpad->is_adp5585 ? 0 : LOCK_INT) |
- GPI_INT | EVENT_INT); /* Status is W1C */
-
- ret |= adp5589_write(client, reg(ADP5589_GENERAL_CFG),
- INT_CFG | OSC_EN | CORE_CLK(3));
- ret |= adp5589_write(client, reg(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 adp5589_report_switch_state(struct adp5589_kpad *kpad)
-{
- int gpi_stat_tmp, pin_loc;
- int i;
- int gpi_stat1 = adp5589_read(kpad->client,
- kpad->var->reg(ADP5589_GPI_STATUS_A));
- int gpi_stat2 = adp5589_read(kpad->client,
- kpad->var->reg(ADP5589_GPI_STATUS_B));
- int gpi_stat3 = !kpad->is_adp5585 ?
- adp5589_read(kpad->client, ADP5589_GPI_STATUS_C) : 0;
-
- for (i = 0; i < kpad->gpimapsize; i++) {
- unsigned short pin = kpad->gpimap[i].pin;
-
- if (pin <= kpad->var->gpi_pin_row_end) {
- gpi_stat_tmp = gpi_stat1;
- pin_loc = pin - kpad->var->gpi_pin_row_base;
- } else if ((pin - kpad->var->gpi_pin_col_base) < 8) {
- gpi_stat_tmp = gpi_stat2;
- pin_loc = pin - kpad->var->gpi_pin_col_base;
- } else {
- gpi_stat_tmp = gpi_stat3;
- pin_loc = pin - kpad->var->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 & BIT(pin_loc)));
- }
-
- input_sync(kpad->input);
-}
-
-static int adp5589_keypad_add(struct adp5589_kpad *kpad, unsigned int revid)
-{
- struct i2c_client *client = kpad->client;
- const struct adp5589_kpad_platform_data *pdata =
- dev_get_platdata(&client->dev);
- struct input_dev *input;
- unsigned int i;
- int error;
-
- if (!((pdata->keypad_en_mask & kpad->var->row_mask) &&
- (pdata->keypad_en_mask >> kpad->var->col_shift)) ||
- !pdata->keymap) {
- dev_err(&client->dev, "no rows, cols or keymap from pdata\n");
- return -EINVAL;
- }
-
- if (pdata->keymapsize != kpad->var->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 > kpad->var->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 < kpad->var->gpi_pin_base ||
- pin > kpad->var->gpi_pin_end) {
- dev_err(&client->dev, "invalid gpi pin data\n");
- return -EINVAL;
- }
-
- if (BIT(pin - kpad->var->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;
- }
-
- input = devm_input_allocate_device(&client->dev);
- if (!input)
- return -ENOMEM;
-
- kpad->input = input;
-
- 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++)
- if (kpad->keycode[i] <= KEY_MAX)
- __set_bit(kpad->keycode[i], 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");
- return error;
- }
-
- error = devm_request_threaded_irq(&client->dev, client->irq,
- NULL, adp5589_irq,
- IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
- client->dev.driver->name, kpad);
- if (error) {
- dev_err(&client->dev, "unable to request irq %d\n", client->irq);
- return error;
- }
-
- return 0;
-}
-
-static void adp5589_clear_config(void *data)
-{
- struct adp5589_kpad *kpad = data;
-
- adp5589_write(kpad->client, kpad->var->reg(ADP5589_GENERAL_CFG), 0);
-}
-
-static int adp5589_probe(struct i2c_client *client)
-{
- const struct i2c_device_id *id = i2c_client_get_device_id(client);
- struct adp5589_kpad *kpad;
- const struct adp5589_kpad_platform_data *pdata =
- dev_get_platdata(&client->dev);
- unsigned int revid;
- int error, ret;
-
- if (!i2c_check_functionality(client->adapter,
- I2C_FUNC_SMBUS_BYTE_DATA)) {
- dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
- return -EIO;
- }
-
- if (!pdata) {
- dev_err(&client->dev, "no platform data?\n");
- return -EINVAL;
- }
-
- kpad = devm_kzalloc(&client->dev, sizeof(*kpad), GFP_KERNEL);
- if (!kpad)
- return -ENOMEM;
-
- kpad->client = client;
-
- switch (id->driver_data) {
- case ADP5585_02:
- kpad->support_row5 = true;
- fallthrough;
- case ADP5585_01:
- kpad->is_adp5585 = true;
- kpad->var = &const_adp5585;
- break;
- case ADP5589:
- kpad->support_row5 = true;
- kpad->var = &const_adp5589;
- break;
- }
-
- error = devm_add_action_or_reset(&client->dev, adp5589_clear_config,
- kpad);
- if (error)
- return error;
-
- ret = adp5589_read(client, ADP5589_5_ID);
- if (ret < 0)
- return ret;
-
- revid = (u8) ret & ADP5589_5_DEVICE_ID_MASK;
-
- if (pdata->keymapsize) {
- error = adp5589_keypad_add(kpad, revid);
- if (error)
- return error;
- }
-
- error = adp5589_setup(kpad);
- if (error)
- return error;
-
- if (kpad->gpimapsize)
- adp5589_report_switch_state(kpad);
-
- error = adp5589_gpio_add(kpad);
- if (error)
- return error;
-
- dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq);
- return 0;
-}
-
-static int adp5589_suspend(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adp5589_kpad *kpad = i2c_get_clientdata(client);
-
- if (kpad->input)
- disable_irq(client->irq);
-
- return 0;
-}
-
-static int adp5589_resume(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct adp5589_kpad *kpad = i2c_get_clientdata(client);
-
- if (kpad->input)
- enable_irq(client->irq);
-
- return 0;
-}
-
-static DEFINE_SIMPLE_DEV_PM_OPS(adp5589_dev_pm_ops, adp5589_suspend, adp5589_resume);
-
-static const struct i2c_device_id adp5589_id[] = {
- {"adp5589-keys", ADP5589},
- {"adp5585-keys", ADP5585_01},
- {"adp5585-02-keys", ADP5585_02}, /* Adds ROW5 to ADP5585 */
- {}
-};
-
-MODULE_DEVICE_TABLE(i2c, adp5589_id);
-
-static struct i2c_driver adp5589_driver = {
- .driver = {
- .name = KBUILD_MODNAME,
- .pm = pm_sleep_ptr(&adp5589_dev_pm_ops),
- },
- .probe = adp5589_probe,
- .id_table = adp5589_id,
-};
-
-module_i2c_driver(adp5589_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("ADP5589/ADP5585 Keypad driver");
projects / thirdparty / linux.git / commitdiff
