linux/include/linux/mfd/stmpe.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) ST-Ericsson SA 2010
 *
 * Author: Rabin Vincent <[email protected]> for ST-Ericsson
 */

#ifndef __LINUX_MFD_STMPE_H
#define __LINUX_MFD_STMPE_H

#include <linux/mutex.h>

#define STMPE_SAMPLE_TIME(x) …
#define STMPE_MOD_12B(x) …
#define STMPE_REF_SEL(x) …
#define STMPE_ADC_FREQ(x) …
#define STMPE_AVE_CTRL(x) …
#define STMPE_DET_DELAY(x) …
#define STMPE_SETTLING(x) …
#define STMPE_FRACTION_Z(x) …
#define STMPE_I_DRIVE(x) …
#define STMPE_OP_MODE(x) …

#define STMPE811_REG_ADC_CTRL1 …
#define STMPE811_REG_ADC_CTRL2 …

struct device;
struct regulator;

enum stmpe_block { … };

enum stmpe_partnum { … };

/*
 * For registers whose locations differ on variants,  the correct address is
 * obtained by indexing stmpe->regs with one of the following.
 */
enum { … };


struct stmpe_variant_info;
struct stmpe_client_info;
struct stmpe_platform_data;

/**
 * struct stmpe - STMPE MFD structure
 * @vcc: optional VCC regulator
 * @vio: optional VIO regulator
 * @lock: lock protecting I/O operations
 * @irq_lock: IRQ bus lock
 * @dev: device, mostly for dev_dbg()
 * @irq_domain: IRQ domain
 * @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
 * @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 { … };

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);
extern int stmpe811_adc_common_init(struct stmpe *stmpe);

#define STMPE_GPIO_NOREQ_811_TOUCH …

#endif