/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Freescale MXS Low Resolution Analog-to-Digital Converter driver * * Copyright (c) 2012 DENX Software Engineering, GmbH. * Copyright (c) 2016 Ksenija Stanojevic <[email protected]> * * Author: Marek Vasut <[email protected]> */ #ifndef __MFD_MXS_LRADC_H #define __MFD_MXS_LRADC_H #include <linux/bitops.h> #include <linux/io.h> #include <linux/stmp_device.h> #define LRADC_MAX_DELAY_CHANS … #define LRADC_MAX_MAPPED_CHANS … #define LRADC_MAX_TOTAL_CHANS … #define LRADC_DELAY_TIMER_HZ … #define LRADC_CTRL0 … #define LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE … #define LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE … #define LRADC_CTRL0_MX28_YNNSW … #define LRADC_CTRL0_MX28_YPNSW … #define LRADC_CTRL0_MX28_YPPSW … #define LRADC_CTRL0_MX28_XNNSW … #define LRADC_CTRL0_MX28_XNPSW … #define LRADC_CTRL0_MX28_XPPSW … #define LRADC_CTRL0_MX23_TOUCH_DETECT_ENABLE … #define LRADC_CTRL0_MX23_YM … #define LRADC_CTRL0_MX23_XM … #define LRADC_CTRL0_MX23_YP … #define LRADC_CTRL0_MX23_XP … #define LRADC_CTRL0_MX28_PLATE_MASK … #define LRADC_CTRL0_MX23_PLATE_MASK … #define LRADC_CTRL1 … #define LRADC_CTRL1_TOUCH_DETECT_IRQ_EN … #define LRADC_CTRL1_LRADC_IRQ_EN(n) … #define LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK … #define LRADC_CTRL1_MX23_LRADC_IRQ_EN_MASK … #define LRADC_CTRL1_LRADC_IRQ_EN_OFFSET … #define LRADC_CTRL1_TOUCH_DETECT_IRQ … #define LRADC_CTRL1_LRADC_IRQ(n) … #define LRADC_CTRL1_MX28_LRADC_IRQ_MASK … #define LRADC_CTRL1_MX23_LRADC_IRQ_MASK … #define LRADC_CTRL1_LRADC_IRQ_OFFSET … #define LRADC_CTRL2 … #define LRADC_CTRL2_DIVIDE_BY_TWO_OFFSET … #define LRADC_CTRL2_TEMPSENSE_PWD … #define LRADC_STATUS … #define LRADC_STATUS_TOUCH_DETECT_RAW … #define LRADC_CH(n) … #define LRADC_CH_ACCUMULATE … #define LRADC_CH_NUM_SAMPLES_MASK … #define LRADC_CH_NUM_SAMPLES_OFFSET … #define LRADC_CH_NUM_SAMPLES(x) … #define LRADC_CH_VALUE_MASK … #define LRADC_CH_VALUE_OFFSET … #define LRADC_DELAY(n) … #define LRADC_DELAY_TRIGGER_LRADCS_MASK … #define LRADC_DELAY_TRIGGER_LRADCS_OFFSET … #define LRADC_DELAY_TRIGGER(x) … #define LRADC_DELAY_KICK … #define LRADC_DELAY_TRIGGER_DELAYS_MASK … #define LRADC_DELAY_TRIGGER_DELAYS_OFFSET … #define LRADC_DELAY_TRIGGER_DELAYS(x) … #define LRADC_DELAY_LOOP_COUNT_MASK … #define LRADC_DELAY_LOOP_COUNT_OFFSET … #define LRADC_DELAY_LOOP(x) … #define LRADC_DELAY_DELAY_MASK … #define LRADC_DELAY_DELAY_OFFSET … #define LRADC_DELAY_DELAY(x) … #define LRADC_CTRL4 … #define LRADC_CTRL4_LRADCSELECT_MASK(n) … #define LRADC_CTRL4_LRADCSELECT_OFFSET(n) … #define LRADC_CTRL4_LRADCSELECT(n, x) … #define LRADC_RESOLUTION … #define LRADC_SINGLE_SAMPLE_MASK … #define BUFFER_VCHANS_LIMITED … #define BUFFER_VCHANS_ALL … /* * Certain LRADC channels are shared between touchscreen * and/or touch-buttons and generic LRADC block. Therefore when using * either of these, these channels are not available for the regular * sampling. The shared channels are as follows: * * CH0 -- Touch button #0 * CH1 -- Touch button #1 * CH2 -- Touch screen XPUL * CH3 -- Touch screen YPLL * CH4 -- Touch screen XNUL * CH5 -- Touch screen YNLR * CH6 -- Touch screen WIPER (5-wire only) * * The bit fields below represents which parts of the LRADC block are * switched into special mode of operation. These channels can not * be sampled as regular LRADC channels. The driver will refuse any * attempt to sample these channels. */ #define CHAN_MASK_TOUCHBUTTON … #define CHAN_MASK_TOUCHSCREEN_4WIRE … #define CHAN_MASK_TOUCHSCREEN_5WIRE … enum mxs_lradc_id { … }; enum mxs_lradc_ts_wires { … }; /** * struct mxs_lradc * @soc: soc type (IMX23 or IMX28) * @clk: 2 kHz clock for delay units * @buffer_vchans: channels that can be used during buffered capture * @touchscreen_wire: touchscreen type (4-wire or 5-wire) * @use_touchbutton: button state (on or off) */ struct mxs_lradc { … }; static inline u32 mxs_lradc_irq_mask(struct mxs_lradc *lradc) { … } #endif /* __MXS_LRADC_H */
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