/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2008 MtekVision Co., Ltd. * Kwangwoo Lee <kwlee@mtekvision.com> * * Using code from: * - ads7846.c * Copyright (c) 2005 David Brownell * Copyright (c) 2006 Nokia Corporation * - corgi_ts.c * Copyright (C) 2004-2005 Richard Purdie * - omap_ts.[hc], ads7846.h, ts_osk.c * Copyright (C) 2002 MontaVista Software * Copyright (C) 2004 Texas Instruments * Copyright (C) 2005 Dirk Behme */ #ifndef _TSC2007_H #define _TSC2007_H struct gpio_desc; #define TSC2007_MEASURE_TEMP0 (0x0 << 4) #define TSC2007_MEASURE_AUX (0x2 << 4) #define TSC2007_MEASURE_TEMP1 (0x4 << 4) #define TSC2007_ACTIVATE_XN (0x8 << 4) #define TSC2007_ACTIVATE_YN (0x9 << 4) #define TSC2007_ACTIVATE_YP_XN (0xa << 4) #define TSC2007_SETUP (0xb << 4) #define TSC2007_MEASURE_X (0xc << 4) #define TSC2007_MEASURE_Y (0xd << 4) #define TSC2007_MEASURE_Z1 (0xe << 4) #define TSC2007_MEASURE_Z2 (0xf << 4) #define TSC2007_POWER_OFF_IRQ_EN (0x0 << 2) #define TSC2007_ADC_ON_IRQ_DIS0 (0x1 << 2) #define TSC2007_ADC_OFF_IRQ_EN (0x2 << 2) #define TSC2007_ADC_ON_IRQ_DIS1 (0x3 << 2) #define TSC2007_12BIT (0x0 << 1) #define TSC2007_8BIT (0x1 << 1) #define MAX_12BIT ((1 << 12) - 1) #define ADC_ON_12BIT (TSC2007_12BIT | TSC2007_ADC_ON_IRQ_DIS0) #define READ_Y (ADC_ON_12BIT | TSC2007_MEASURE_Y) #define READ_Z1 (ADC_ON_12BIT | TSC2007_MEASURE_Z1) #define READ_Z2 (ADC_ON_12BIT | TSC2007_MEASURE_Z2) #define READ_X (ADC_ON_12BIT | TSC2007_MEASURE_X) #define PWRDOWN (TSC2007_12BIT | TSC2007_POWER_OFF_IRQ_EN) struct ts_event { u16 x; u16 y; u16 z1, z2; }; struct tsc2007 { struct input_dev *input; char phys[32]; struct i2c_client *client; u16 model; u16 x_plate_ohms; u16 max_rt; unsigned long poll_period; /* in jiffies */ int fuzzx; int fuzzy; int fuzzz; struct gpio_desc *gpiod; int irq; wait_queue_head_t wait; bool stopped; int (*get_pendown_state)(struct device *); void (*clear_penirq)(void); struct mutex mlock; }; int tsc2007_xfer(struct tsc2007 *tsc, u8 cmd); u32 tsc2007_calculate_resistance(struct tsc2007 *tsc, struct ts_event *tc); bool tsc2007_is_pen_down(struct tsc2007 *ts); #if IS_ENABLED(CONFIG_TOUCHSCREEN_TSC2007_IIO) /* defined in tsc2007_iio.c */ int tsc2007_iio_configure(struct tsc2007 *ts); #else static inline int tsc2007_iio_configure(struct tsc2007 *ts) { return 0; } #endif /* CONFIG_TOUCHSCREEN_TSC2007_IIO */ #endif /* _TSC2007_H */