![Linus Walleij](/assets/img/avatar_default.png)
Since it's not like we will re-arrange the keys at run-time, it seems proper to allow the keymap data to be const. This solves a compilation warning in ux500. Cc: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
226 lines
6.6 KiB
C
226 lines
6.6 KiB
C
/*
|
|
* Copyright (C) ST-Ericsson SA 2010
|
|
*
|
|
* License Terms: GNU General Public License, version 2
|
|
* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
|
|
*/
|
|
|
|
#ifndef __LINUX_MFD_STMPE_H
|
|
#define __LINUX_MFD_STMPE_H
|
|
|
|
#include <linux/mutex.h>
|
|
|
|
struct device;
|
|
|
|
enum stmpe_block {
|
|
STMPE_BLOCK_GPIO = 1 << 0,
|
|
STMPE_BLOCK_KEYPAD = 1 << 1,
|
|
STMPE_BLOCK_TOUCHSCREEN = 1 << 2,
|
|
STMPE_BLOCK_ADC = 1 << 3,
|
|
STMPE_BLOCK_PWM = 1 << 4,
|
|
STMPE_BLOCK_ROTATOR = 1 << 5,
|
|
};
|
|
|
|
enum stmpe_partnum {
|
|
STMPE610,
|
|
STMPE801,
|
|
STMPE811,
|
|
STMPE1601,
|
|
STMPE2401,
|
|
STMPE2403,
|
|
STMPE_NBR_PARTS
|
|
};
|
|
|
|
/*
|
|
* For registers whose locations differ on variants, the correct address is
|
|
* obtained by indexing stmpe->regs with one of the following.
|
|
*/
|
|
enum {
|
|
STMPE_IDX_CHIP_ID,
|
|
STMPE_IDX_ICR_LSB,
|
|
STMPE_IDX_IER_LSB,
|
|
STMPE_IDX_ISR_MSB,
|
|
STMPE_IDX_GPMR_LSB,
|
|
STMPE_IDX_GPSR_LSB,
|
|
STMPE_IDX_GPCR_LSB,
|
|
STMPE_IDX_GPDR_LSB,
|
|
STMPE_IDX_GPEDR_MSB,
|
|
STMPE_IDX_GPRER_LSB,
|
|
STMPE_IDX_GPFER_LSB,
|
|
STMPE_IDX_GPAFR_U_MSB,
|
|
STMPE_IDX_IEGPIOR_LSB,
|
|
STMPE_IDX_ISGPIOR_MSB,
|
|
STMPE_IDX_MAX,
|
|
};
|
|
|
|
|
|
struct stmpe_variant_info;
|
|
struct stmpe_client_info;
|
|
|
|
/**
|
|
* struct stmpe - STMPE MFD structure
|
|
* @lock: lock protecting I/O operations
|
|
* @irq_lock: IRQ bus lock
|
|
* @dev: device, mostly for dev_dbg()
|
|
* @client: client - i2c or spi
|
|
* @ci: client specific information
|
|
* @partnum: part number
|
|
* @variant: the detected STMPE model number
|
|
* @regs: list of addresses of registers which are at different addresses on
|
|
* different variants. Indexed by one of STMPE_IDX_*.
|
|
* @irq: irq number for stmpe
|
|
* @irq_base: starting IRQ number for internal IRQs
|
|
* @num_gpios: number of gpios, differs for variants
|
|
* @ier: cache of IER registers for bus_lock
|
|
* @oldier: cache of IER registers for bus_lock
|
|
* @pdata: platform data
|
|
*/
|
|
struct stmpe {
|
|
struct mutex lock;
|
|
struct mutex irq_lock;
|
|
struct device *dev;
|
|
void *client;
|
|
struct stmpe_client_info *ci;
|
|
enum stmpe_partnum partnum;
|
|
struct stmpe_variant_info *variant;
|
|
const u8 *regs;
|
|
|
|
int irq;
|
|
int irq_base;
|
|
int num_gpios;
|
|
u8 ier[2];
|
|
u8 oldier[2];
|
|
struct stmpe_platform_data *pdata;
|
|
};
|
|
|
|
extern int stmpe_reg_write(struct stmpe *stmpe, u8 reg, u8 data);
|
|
extern int stmpe_reg_read(struct stmpe *stmpe, u8 reg);
|
|
extern int stmpe_block_read(struct stmpe *stmpe, u8 reg, u8 length,
|
|
u8 *values);
|
|
extern int stmpe_block_write(struct stmpe *stmpe, u8 reg, u8 length,
|
|
const u8 *values);
|
|
extern int stmpe_set_bits(struct stmpe *stmpe, u8 reg, u8 mask, u8 val);
|
|
extern int stmpe_set_altfunc(struct stmpe *stmpe, u32 pins,
|
|
enum stmpe_block block);
|
|
extern int stmpe_enable(struct stmpe *stmpe, unsigned int blocks);
|
|
extern int stmpe_disable(struct stmpe *stmpe, unsigned int blocks);
|
|
|
|
struct matrix_keymap_data;
|
|
|
|
/**
|
|
* struct stmpe_keypad_platform_data - STMPE keypad platform data
|
|
* @keymap_data: key map table and size
|
|
* @debounce_ms: debounce interval, in ms. Maximum is
|
|
* %STMPE_KEYPAD_MAX_DEBOUNCE.
|
|
* @scan_count: number of key scanning cycles to confirm key data.
|
|
* Maximum is %STMPE_KEYPAD_MAX_SCAN_COUNT.
|
|
* @no_autorepeat: disable key autorepeat
|
|
*/
|
|
struct stmpe_keypad_platform_data {
|
|
const struct matrix_keymap_data *keymap_data;
|
|
unsigned int debounce_ms;
|
|
unsigned int scan_count;
|
|
bool no_autorepeat;
|
|
};
|
|
|
|
#define STMPE_GPIO_NOREQ_811_TOUCH (0xf0)
|
|
|
|
/**
|
|
* struct stmpe_gpio_platform_data - STMPE GPIO platform data
|
|
* @gpio_base: first gpio number assigned. A maximum of
|
|
* %STMPE_NR_GPIOS GPIOs will be allocated.
|
|
* @norequest_mask: bitmask specifying which GPIOs should _not_ be
|
|
* requestable due to different usage (e.g. touch, keypad)
|
|
* STMPE_GPIO_NOREQ_* macros can be used here.
|
|
* @setup: board specific setup callback.
|
|
* @remove: board specific remove callback
|
|
*/
|
|
struct stmpe_gpio_platform_data {
|
|
int gpio_base;
|
|
unsigned norequest_mask;
|
|
void (*setup)(struct stmpe *stmpe, unsigned gpio_base);
|
|
void (*remove)(struct stmpe *stmpe, unsigned gpio_base);
|
|
};
|
|
|
|
/**
|
|
* struct stmpe_ts_platform_data - stmpe811 touch screen controller platform
|
|
* data
|
|
* @sample_time: ADC converstion time in number of clock.
|
|
* (0 -> 36 clocks, 1 -> 44 clocks, 2 -> 56 clocks, 3 -> 64 clocks,
|
|
* 4 -> 80 clocks, 5 -> 96 clocks, 6 -> 144 clocks),
|
|
* recommended is 4.
|
|
* @mod_12b: ADC Bit mode (0 -> 10bit ADC, 1 -> 12bit ADC)
|
|
* @ref_sel: ADC reference source
|
|
* (0 -> internal reference, 1 -> external reference)
|
|
* @adc_freq: ADC Clock speed
|
|
* (0 -> 1.625 MHz, 1 -> 3.25 MHz, 2 || 3 -> 6.5 MHz)
|
|
* @ave_ctrl: Sample average control
|
|
* (0 -> 1 sample, 1 -> 2 samples, 2 -> 4 samples, 3 -> 8 samples)
|
|
* @touch_det_delay: Touch detect interrupt delay
|
|
* (0 -> 10 us, 1 -> 50 us, 2 -> 100 us, 3 -> 500 us,
|
|
* 4-> 1 ms, 5 -> 5 ms, 6 -> 10 ms, 7 -> 50 ms)
|
|
* recommended is 3
|
|
* @settling: Panel driver settling time
|
|
* (0 -> 10 us, 1 -> 100 us, 2 -> 500 us, 3 -> 1 ms,
|
|
* 4 -> 5 ms, 5 -> 10 ms, 6 for 50 ms, 7 -> 100 ms)
|
|
* recommended is 2
|
|
* @fraction_z: Length of the fractional part in z
|
|
* (fraction_z ([0..7]) = Count of the fractional part)
|
|
* recommended is 7
|
|
* @i_drive: current limit value of the touchscreen drivers
|
|
* (0 -> 20 mA typical 35 mA max, 1 -> 50 mA typical 80 mA max)
|
|
*
|
|
* */
|
|
struct stmpe_ts_platform_data {
|
|
u8 sample_time;
|
|
u8 mod_12b;
|
|
u8 ref_sel;
|
|
u8 adc_freq;
|
|
u8 ave_ctrl;
|
|
u8 touch_det_delay;
|
|
u8 settling;
|
|
u8 fraction_z;
|
|
u8 i_drive;
|
|
};
|
|
|
|
/**
|
|
* struct stmpe_platform_data - STMPE platform data
|
|
* @id: device id to distinguish between multiple STMPEs on the same board
|
|
* @blocks: bitmask of blocks to enable (use STMPE_BLOCK_*)
|
|
* @irq_trigger: IRQ trigger to use for the interrupt to the host
|
|
* @irq_invert_polarity: IRQ line is connected with reversed polarity
|
|
* @autosleep: bool to enable/disable stmpe autosleep
|
|
* @autosleep_timeout: inactivity timeout in milliseconds for autosleep
|
|
* @irq_base: base IRQ number. %STMPE_NR_IRQS irqs will be used, or
|
|
* %STMPE_NR_INTERNAL_IRQS if the GPIO driver is not used.
|
|
* @irq_over_gpio: true if gpio is used to get irq
|
|
* @irq_gpio: gpio number over which irq will be requested (significant only if
|
|
* irq_over_gpio is true)
|
|
* @gpio: GPIO-specific platform data
|
|
* @keypad: keypad-specific platform data
|
|
* @ts: touchscreen-specific platform data
|
|
*/
|
|
struct stmpe_platform_data {
|
|
int id;
|
|
unsigned int blocks;
|
|
int irq_base;
|
|
unsigned int irq_trigger;
|
|
bool irq_invert_polarity;
|
|
bool autosleep;
|
|
bool irq_over_gpio;
|
|
int irq_gpio;
|
|
int autosleep_timeout;
|
|
|
|
struct stmpe_gpio_platform_data *gpio;
|
|
struct stmpe_keypad_platform_data *keypad;
|
|
struct stmpe_ts_platform_data *ts;
|
|
};
|
|
|
|
#define STMPE_NR_INTERNAL_IRQS 9
|
|
#define STMPE_INT_GPIO(x) (STMPE_NR_INTERNAL_IRQS + (x))
|
|
|
|
#define STMPE_NR_GPIOS 24
|
|
#define STMPE_NR_IRQS STMPE_INT_GPIO(STMPE_NR_GPIOS)
|
|
|
|
#endif
|