| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Michael Hennerich | 5295 | 92.85% | 2 | 16.67% |
| Lars-Peter Clausen | 367 | 6.44% | 3 | 25.00% |
| Jingoo Han | 14 | 0.25% | 1 | 8.33% |
| Andrew Liu | 11 | 0.19% | 1 | 8.33% |
| Linus Walleij | 8 | 0.14% | 1 | 8.33% |
| Guido Martínez | 5 | 0.09% | 2 | 16.67% |
| Thomas Gleixner | 2 | 0.04% | 1 | 8.33% |
| Axel Lin | 1 | 0.02% | 1 | 8.33% |
| Total | 5703 | 12 |
// 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/module.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> /* 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 (1 << 7) #define CORE_CLK(x) (((x) & 0x3) << 5) #define LCK_TRK_LOGIC (1 << 4) /* ADP5589 only */ #define LCK_TRK_GPI (1 << 3) /* ADP5589 only */ #define INT_CFG (1 << 1) #define RST_CFG (1 << 0) /* INT_EN Register */ #define LOGIC2_IEN (1 << 5) /* ADP5589 only */ #define LOGIC1_IEN (1 << 4) #define LOCK_IEN (1 << 3) /* ADP5589 only */ #define OVRFLOW_IEN (1 << 2) #define GPI_IEN (1 << 1) #define EVENT_IEN (1 << 0) /* Interrupt Status Register */ #define LOGIC2_INT (1 << 5) /* ADP5589 only */ #define LOGIC1_INT (1 << 4) #define LOCK_INT (1 << 3) /* ADP5589 only */ #define OVRFLOW_INT (1 << 2) #define GPI_INT (1 << 1) #define EVENT_INT (1 << 0) /* STATUS Register */ #define LOGIC2_STAT (1 << 7) /* ADP5589 only */ #define LOGIC1_STAT (1 << 6) #define LOCK_STAT (1 << 5) /* ADP5589 only */ #define KEC 0x1F /* 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 /* ADP5589 only */ /* Key Event Register xy */ #define KEY_EV_PRESSED (1 << 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]; bool export_gpio; 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]); return !!(adp5589_read(kpad->client, kpad->var->reg(ADP5589_GPI_STATUS_A) + bank) & 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]); mutex_lock(&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]); mutex_unlock(&kpad->gpio_lock); } 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]); int ret; mutex_lock(&kpad->gpio_lock); kpad->dir[bank] &= ~bit; ret = adp5589_write(kpad->client, kpad->var->reg(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 = gpiochip_get_data(chip); unsigned int bank = kpad->var->bank(kpad->gpiomap[off]); unsigned int bit = kpad->var->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, kpad->var->reg(ADP5589_GPO_DATA_OUT_A) + bank, kpad->dat_out[bank]); ret |= adp5589_write(kpad->client, kpad->var->reg(ADP5589_GPIO_DIRECTION_A) + bank, kpad->dir[bank]); mutex_unlock(&kpad->gpio_lock); return ret; } 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 & (1 << 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->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_data(&kpad->gc, kpad); if (error) { dev_err(dev, "gpiochip_add_data() failed, err: %d\n", 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); } 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 adp5589_gpio_remove(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 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); } gpiochip_remove(&kpad->gc); } #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_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 |= (1 << (pin - kpad->var->gpi_pin_row_base)); } else { evt_mode2 |= ((1 << (pin - kpad->var->gpi_pin_col_base)) & 0xFF); if (!kpad->is_adp5585) evt_mode3 |= ((1 << (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 val = 0, bit = (1 << 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 val = 0, bit = 1 << (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 & (1 << 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 ((1 << (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 = input_allocate_device(); 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"); goto err_free_input; } 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; } device_init_wakeup(&client->dev, 1); return 0; err_unreg_dev: input_unregister_device(input); input = NULL; err_free_input: input_free_device(input); return error; } static void adp5589_keypad_remove(struct adp5589_kpad *kpad) { if (kpad->input) { free_irq(kpad->client->irq, kpad); input_unregister_device(kpad->input); } } static int adp5589_probe(struct i2c_client *client, const struct i2c_device_id *id) { 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 = kzalloc(sizeof(*kpad), GFP_KERNEL); if (!kpad) return -ENOMEM; kpad->client = client; switch (id->driver_data) { case ADP5585_02: kpad->support_row5 = true; /* fall through */ case ADP5585_01: kpad->is_adp5585 = true; kpad->var = &const_adp5585; break; case ADP5589: kpad->support_row5 = true; kpad->var = &const_adp5589; break; } ret = adp5589_read(client, ADP5589_5_ID); if (ret < 0) { error = ret; goto err_free_mem; } revid = (u8) ret & ADP5589_5_DEVICE_ID_MASK; if (pdata->keymapsize) { error = adp5589_keypad_add(kpad, revid); if (error) goto err_free_mem; } error = adp5589_setup(kpad); if (error) goto err_keypad_remove; if (kpad->gpimapsize) adp5589_report_switch_state(kpad); error = adp5589_gpio_add(kpad); if (error) goto err_keypad_remove; i2c_set_clientdata(client, kpad); dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq); return 0; err_keypad_remove: adp5589_keypad_remove(kpad); err_free_mem: kfree(kpad); return error; } static int adp5589_remove(struct i2c_client *client) { struct adp5589_kpad *kpad = i2c_get_clientdata(client); adp5589_write(client, kpad->var->reg(ADP5589_GENERAL_CFG), 0); adp5589_keypad_remove(kpad); 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; if (!kpad->input) return 0; 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 (!kpad->input) return 0; 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", 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 = &adp5589_dev_pm_ops, }, .probe = adp5589_probe, .remove = adp5589_remove, .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");
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