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09c730a488
Add support for the keypad controller module found on the TC3589X devices. This driver default adds the support for TC35893 device. Signed-off-by: Sundar Iyer <sundar.iyer@stericsson.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> [Some minor fixups for compilation] Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
196 lines
5.7 KiB
C
196 lines
5.7 KiB
C
/*
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* Copyright (C) ST-Ericsson SA 2010
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*
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* License Terms: GNU General Public License, version 2
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*/
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#ifndef __LINUX_MFD_TC3589x_H
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#define __LINUX_MFD_TC3589x_H
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#include <linux/device.h>
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enum tx3589x_block {
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TC3589x_BLOCK_GPIO = 1 << 0,
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TC3589x_BLOCK_KEYPAD = 1 << 1,
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};
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#define TC3589x_RSTCTRL_IRQRST (1 << 4)
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#define TC3589x_RSTCTRL_TIMRST (1 << 3)
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#define TC3589x_RSTCTRL_ROTRST (1 << 2)
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#define TC3589x_RSTCTRL_KBDRST (1 << 1)
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#define TC3589x_RSTCTRL_GPIRST (1 << 0)
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/* Keyboard Configuration Registers */
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#define TC3589x_KBDSETTLE_REG 0x01
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#define TC3589x_KBDBOUNCE 0x02
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#define TC3589x_KBDSIZE 0x03
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#define TC3589x_KBCFG_LSB 0x04
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#define TC3589x_KBCFG_MSB 0x05
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#define TC3589x_KBDIC 0x08
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#define TC3589x_KBDMSK 0x09
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#define TC3589x_EVTCODE_FIFO 0x10
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#define TC3589x_KBDMFS 0x8F
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#define TC3589x_IRQST 0x91
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#define TC3589x_MANFCODE_MAGIC 0x03
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#define TC3589x_MANFCODE 0x80
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#define TC3589x_VERSION 0x81
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#define TC3589x_IOCFG 0xA7
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#define TC3589x_CLKMODE 0x88
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#define TC3589x_CLKCFG 0x89
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#define TC3589x_CLKEN 0x8A
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#define TC3589x_RSTCTRL 0x82
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#define TC3589x_EXTRSTN 0x83
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#define TC3589x_RSTINTCLR 0x84
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/* Pull up/down configuration registers */
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#define TC3589x_IOCFG 0xA7
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#define TC3589x_IOPULLCFG0_LSB 0xAA
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#define TC3589x_IOPULLCFG0_MSB 0xAB
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#define TC3589x_IOPULLCFG1_LSB 0xAC
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#define TC3589x_IOPULLCFG1_MSB 0xAD
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#define TC3589x_IOPULLCFG2_LSB 0xAE
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#define TC3589x_GPIOIS0 0xC9
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#define TC3589x_GPIOIS1 0xCA
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#define TC3589x_GPIOIS2 0xCB
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#define TC3589x_GPIOIBE0 0xCC
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#define TC3589x_GPIOIBE1 0xCD
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#define TC3589x_GPIOIBE2 0xCE
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#define TC3589x_GPIOIEV0 0xCF
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#define TC3589x_GPIOIEV1 0xD0
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#define TC3589x_GPIOIEV2 0xD1
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#define TC3589x_GPIOIE0 0xD2
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#define TC3589x_GPIOIE1 0xD3
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#define TC3589x_GPIOIE2 0xD4
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#define TC3589x_GPIORIS0 0xD6
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#define TC3589x_GPIORIS1 0xD7
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#define TC3589x_GPIORIS2 0xD8
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#define TC3589x_GPIOMIS0 0xD9
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#define TC3589x_GPIOMIS1 0xDA
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#define TC3589x_GPIOMIS2 0xDB
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#define TC3589x_GPIOIC0 0xDC
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#define TC3589x_GPIOIC1 0xDD
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#define TC3589x_GPIOIC2 0xDE
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#define TC3589x_GPIODATA0 0xC0
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#define TC3589x_GPIOMASK0 0xc1
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#define TC3589x_GPIODATA1 0xC2
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#define TC3589x_GPIOMASK1 0xc3
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#define TC3589x_GPIODATA2 0xC4
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#define TC3589x_GPIOMASK2 0xC5
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#define TC3589x_GPIODIR0 0xC6
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#define TC3589x_GPIODIR1 0xC7
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#define TC3589x_GPIODIR2 0xC8
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#define TC3589x_GPIOSYNC0 0xE6
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#define TC3589x_GPIOSYNC1 0xE7
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#define TC3589x_GPIOSYNC2 0xE8
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#define TC3589x_GPIOWAKE0 0xE9
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#define TC3589x_GPIOWAKE1 0xEA
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#define TC3589x_GPIOWAKE2 0xEB
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#define TC3589x_GPIOODM0 0xE0
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#define TC3589x_GPIOODE0 0xE1
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#define TC3589x_GPIOODM1 0xE2
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#define TC3589x_GPIOODE1 0xE3
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#define TC3589x_GPIOODM2 0xE4
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#define TC3589x_GPIOODE2 0xE5
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#define TC3589x_INT_GPIIRQ 0
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#define TC3589x_INT_TI0IRQ 1
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#define TC3589x_INT_TI1IRQ 2
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#define TC3589x_INT_TI2IRQ 3
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#define TC3589x_INT_ROTIRQ 5
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#define TC3589x_INT_KBDIRQ 6
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#define TC3589x_INT_PORIRQ 7
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#define TC3589x_NR_INTERNAL_IRQS 8
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#define TC3589x_INT_GPIO(x) (TC3589x_NR_INTERNAL_IRQS + (x))
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struct tc3589x {
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struct mutex lock;
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struct device *dev;
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struct i2c_client *i2c;
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int irq_base;
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int num_gpio;
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struct tc3589x_platform_data *pdata;
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};
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extern int tc3589x_reg_write(struct tc3589x *tc3589x, u8 reg, u8 data);
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extern int tc3589x_reg_read(struct tc3589x *tc3589x, u8 reg);
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extern int tc3589x_block_read(struct tc3589x *tc3589x, u8 reg, u8 length,
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u8 *values);
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extern int tc3589x_block_write(struct tc3589x *tc3589x, u8 reg, u8 length,
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const u8 *values);
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extern int tc3589x_set_bits(struct tc3589x *tc3589x, u8 reg, u8 mask, u8 val);
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/*
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* Keypad related platform specific constants
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* These values may be modified for fine tuning
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*/
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#define TC_KPD_ROWS 0x8
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#define TC_KPD_COLUMNS 0x8
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#define TC_KPD_DEBOUNCE_PERIOD 0xA3
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#define TC_KPD_SETTLE_TIME 0xA3
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/**
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* struct tc35893_platform_data - data structure for platform specific data
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* @keymap_data: matrix scan code table for keycodes
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* @krow: mask for available rows, value is 0xFF
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* @kcol: mask for available columns, value is 0xFF
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* @debounce_period: platform specific debounce time
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* @settle_time: platform specific settle down time
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* @irqtype: type of interrupt, falling or rising edge
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* @enable_wakeup: specifies if keypad event can wake up system from sleep
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* @no_autorepeat: flag for auto repetition
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*/
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struct tc3589x_keypad_platform_data {
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const struct matrix_keymap_data *keymap_data;
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u8 krow;
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u8 kcol;
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u8 debounce_period;
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u8 settle_time;
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unsigned long irqtype;
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bool enable_wakeup;
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bool no_autorepeat;
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};
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/**
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* struct tc3589x_gpio_platform_data - TC3589x GPIO platform data
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* @gpio_base: first gpio number assigned to TC3589x. A maximum of
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* %TC3589x_NR_GPIOS GPIOs will be allocated.
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* @setup: callback for board-specific initialization
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* @remove: callback for board-specific teardown
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*/
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struct tc3589x_gpio_platform_data {
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int gpio_base;
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void (*setup)(struct tc3589x *tc3589x, unsigned gpio_base);
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void (*remove)(struct tc3589x *tc3589x, unsigned gpio_base);
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};
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/**
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* struct tc3589x_platform_data - TC3589x platform data
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* @block: bitmask of blocks to enable (use TC3589x_BLOCK_*)
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* @irq_base: base IRQ number. %TC3589x_NR_IRQS irqs will be used.
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* @gpio: GPIO-specific platform data
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* @keypad: keypad-specific platform data
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*/
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struct tc3589x_platform_data {
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unsigned int block;
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int irq_base;
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struct tc3589x_gpio_platform_data *gpio;
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const struct tc3589x_keypad_platform_data *keypad;
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};
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#define TC3589x_NR_GPIOS 24
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#define TC3589x_NR_IRQS TC3589x_INT_GPIO(TC3589x_NR_GPIOS)
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#endif
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