| |
| /* |
| * 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 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #ifndef _TSC2007_H |
| #define _TSC2007_H |
| |
| #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; |
| |
| unsigned int gpio; |
| 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 */ |