cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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stmpe.h (4083B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Copyright (C) ST-Ericsson SA 2010
      4 *
      5 * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
      6 */
      7
      8#ifndef __LINUX_MFD_STMPE_H
      9#define __LINUX_MFD_STMPE_H
     10
     11#include <linux/mutex.h>
     12
     13#define STMPE_SAMPLE_TIME(x)	((x & 0xf) << 4)
     14#define STMPE_MOD_12B(x)	((x & 0x1) << 3)
     15#define STMPE_REF_SEL(x)	((x & 0x1) << 1)
     16#define STMPE_ADC_FREQ(x)	(x & 0x3)
     17#define STMPE_AVE_CTRL(x)	((x & 0x3) << 6)
     18#define STMPE_DET_DELAY(x)	((x & 0x7) << 3)
     19#define STMPE_SETTLING(x)	(x & 0x7)
     20#define STMPE_FRACTION_Z(x)	(x & 0x7)
     21#define STMPE_I_DRIVE(x)	(x & 0x1)
     22#define STMPE_OP_MODE(x)	((x & 0x7) << 1)
     23
     24#define STMPE811_REG_ADC_CTRL1	0x20
     25#define STMPE811_REG_ADC_CTRL2	0x21
     26
     27struct device;
     28struct regulator;
     29
     30enum stmpe_block {
     31	STMPE_BLOCK_GPIO	= 1 << 0,
     32	STMPE_BLOCK_KEYPAD	= 1 << 1,
     33	STMPE_BLOCK_TOUCHSCREEN	= 1 << 2,
     34	STMPE_BLOCK_ADC		= 1 << 3,
     35	STMPE_BLOCK_PWM		= 1 << 4,
     36	STMPE_BLOCK_ROTATOR	= 1 << 5,
     37};
     38
     39enum stmpe_partnum {
     40	STMPE610,
     41	STMPE801,
     42	STMPE811,
     43	STMPE1600,
     44	STMPE1601,
     45	STMPE1801,
     46	STMPE2401,
     47	STMPE2403,
     48	STMPE_NBR_PARTS
     49};
     50
     51/*
     52 * For registers whose locations differ on variants,  the correct address is
     53 * obtained by indexing stmpe->regs with one of the following.
     54 */
     55enum {
     56	STMPE_IDX_CHIP_ID,
     57	STMPE_IDX_SYS_CTRL,
     58	STMPE_IDX_SYS_CTRL2,
     59	STMPE_IDX_ICR_LSB,
     60	STMPE_IDX_IER_LSB,
     61	STMPE_IDX_IER_MSB,
     62	STMPE_IDX_ISR_LSB,
     63	STMPE_IDX_ISR_MSB,
     64	STMPE_IDX_GPMR_LSB,
     65	STMPE_IDX_GPMR_CSB,
     66	STMPE_IDX_GPMR_MSB,
     67	STMPE_IDX_GPSR_LSB,
     68	STMPE_IDX_GPSR_CSB,
     69	STMPE_IDX_GPSR_MSB,
     70	STMPE_IDX_GPCR_LSB,
     71	STMPE_IDX_GPCR_CSB,
     72	STMPE_IDX_GPCR_MSB,
     73	STMPE_IDX_GPDR_LSB,
     74	STMPE_IDX_GPDR_CSB,
     75	STMPE_IDX_GPDR_MSB,
     76	STMPE_IDX_GPEDR_LSB,
     77	STMPE_IDX_GPEDR_CSB,
     78	STMPE_IDX_GPEDR_MSB,
     79	STMPE_IDX_GPRER_LSB,
     80	STMPE_IDX_GPRER_CSB,
     81	STMPE_IDX_GPRER_MSB,
     82	STMPE_IDX_GPFER_LSB,
     83	STMPE_IDX_GPFER_CSB,
     84	STMPE_IDX_GPFER_MSB,
     85	STMPE_IDX_GPPUR_LSB,
     86	STMPE_IDX_GPPDR_LSB,
     87	STMPE_IDX_GPAFR_U_MSB,
     88	STMPE_IDX_IEGPIOR_LSB,
     89	STMPE_IDX_IEGPIOR_CSB,
     90	STMPE_IDX_IEGPIOR_MSB,
     91	STMPE_IDX_ISGPIOR_LSB,
     92	STMPE_IDX_ISGPIOR_CSB,
     93	STMPE_IDX_ISGPIOR_MSB,
     94	STMPE_IDX_MAX,
     95};
     96
     97
     98struct stmpe_variant_info;
     99struct stmpe_client_info;
    100struct stmpe_platform_data;
    101
    102/**
    103 * struct stmpe - STMPE MFD structure
    104 * @vcc: optional VCC regulator
    105 * @vio: optional VIO regulator
    106 * @lock: lock protecting I/O operations
    107 * @irq_lock: IRQ bus lock
    108 * @dev: device, mostly for dev_dbg()
    109 * @irq_domain: IRQ domain
    110 * @client: client - i2c or spi
    111 * @ci: client specific information
    112 * @partnum: part number
    113 * @variant: the detected STMPE model number
    114 * @regs: list of addresses of registers which are at different addresses on
    115 *	  different variants.  Indexed by one of STMPE_IDX_*.
    116 * @irq: irq number for stmpe
    117 * @num_gpios: number of gpios, differs for variants
    118 * @ier: cache of IER registers for bus_lock
    119 * @oldier: cache of IER registers for bus_lock
    120 * @pdata: platform data
    121 */
    122struct stmpe {
    123	struct regulator *vcc;
    124	struct regulator *vio;
    125	struct mutex lock;
    126	struct mutex irq_lock;
    127	struct device *dev;
    128	struct irq_domain *domain;
    129	void *client;
    130	struct stmpe_client_info *ci;
    131	enum stmpe_partnum partnum;
    132	struct stmpe_variant_info *variant;
    133	const u8 *regs;
    134
    135	int irq;
    136	int num_gpios;
    137	u8 ier[2];
    138	u8 oldier[2];
    139	struct stmpe_platform_data *pdata;
    140
    141	/* For devices that use an ADC */
    142	u8 sample_time;
    143	u8 mod_12b;
    144	u8 ref_sel;
    145	u8 adc_freq;
    146};
    147
    148extern int stmpe_reg_write(struct stmpe *stmpe, u8 reg, u8 data);
    149extern int stmpe_reg_read(struct stmpe *stmpe, u8 reg);
    150extern int stmpe_block_read(struct stmpe *stmpe, u8 reg, u8 length,
    151			    u8 *values);
    152extern int stmpe_block_write(struct stmpe *stmpe, u8 reg, u8 length,
    153			     const u8 *values);
    154extern int stmpe_set_bits(struct stmpe *stmpe, u8 reg, u8 mask, u8 val);
    155extern int stmpe_set_altfunc(struct stmpe *stmpe, u32 pins,
    156			     enum stmpe_block block);
    157extern int stmpe_enable(struct stmpe *stmpe, unsigned int blocks);
    158extern int stmpe_disable(struct stmpe *stmpe, unsigned int blocks);
    159extern int stmpe811_adc_common_init(struct stmpe *stmpe);
    160
    161#define STMPE_GPIO_NOREQ_811_TOUCH	(0xf0)
    162
    163#endif