127e34995SRabin Vincent /* 227e34995SRabin Vincent * Copyright (C) ST-Ericsson SA 2010 327e34995SRabin Vincent * 427e34995SRabin Vincent * License Terms: GNU General Public License, version 2 527e34995SRabin Vincent * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson 627e34995SRabin Vincent */ 727e34995SRabin Vincent 827e34995SRabin Vincent #ifndef __LINUX_MFD_STMPE_H 927e34995SRabin Vincent #define __LINUX_MFD_STMPE_H 1027e34995SRabin Vincent 11313162d0SPaul Gortmaker #include <linux/mutex.h> 12313162d0SPaul Gortmaker 13*063755abSPhilippe Schenker #define STMPE_SAMPLE_TIME(x) ((x & 0xf) << 4) 14*063755abSPhilippe Schenker #define STMPE_MOD_12B(x) ((x & 0x1) << 3) 15*063755abSPhilippe Schenker #define STMPE_REF_SEL(x) ((x & 0x1) << 1) 16*063755abSPhilippe Schenker #define STMPE_ADC_FREQ(x) (x & 0x3) 17*063755abSPhilippe Schenker #define STMPE_AVE_CTRL(x) ((x & 0x3) << 6) 18*063755abSPhilippe Schenker #define STMPE_DET_DELAY(x) ((x & 0x7) << 3) 19*063755abSPhilippe Schenker #define STMPE_SETTLING(x) (x & 0x7) 20*063755abSPhilippe Schenker #define STMPE_FRACTION_Z(x) (x & 0x7) 21*063755abSPhilippe Schenker #define STMPE_I_DRIVE(x) (x & 0x1) 22*063755abSPhilippe Schenker #define STMPE_OP_MODE(x) ((x & 0x7) << 1) 23*063755abSPhilippe Schenker 24313162d0SPaul Gortmaker struct device; 259c9e3214SLinus Walleij struct regulator; 2627e34995SRabin Vincent 2727e34995SRabin Vincent enum stmpe_block { 2827e34995SRabin Vincent STMPE_BLOCK_GPIO = 1 << 0, 2927e34995SRabin Vincent STMPE_BLOCK_KEYPAD = 1 << 1, 3027e34995SRabin Vincent STMPE_BLOCK_TOUCHSCREEN = 1 << 2, 3127e34995SRabin Vincent STMPE_BLOCK_ADC = 1 << 3, 3227e34995SRabin Vincent STMPE_BLOCK_PWM = 1 << 4, 3327e34995SRabin Vincent STMPE_BLOCK_ROTATOR = 1 << 5, 3427e34995SRabin Vincent }; 3527e34995SRabin Vincent 3627e34995SRabin Vincent enum stmpe_partnum { 371cda2394SViresh Kumar STMPE610, 387f7f4ea1SViresh Kumar STMPE801, 3927e34995SRabin Vincent STMPE811, 406bb9f0d9SPatrice Chotard STMPE1600, 4127e34995SRabin Vincent STMPE1601, 42230f13a5SJean-Nicolas Graux STMPE1801, 4327e34995SRabin Vincent STMPE2401, 4427e34995SRabin Vincent STMPE2403, 45e31f9b82SChris Blair STMPE_NBR_PARTS 4627e34995SRabin Vincent }; 4727e34995SRabin Vincent 4827e34995SRabin Vincent /* 4927e34995SRabin Vincent * For registers whose locations differ on variants, the correct address is 5027e34995SRabin Vincent * obtained by indexing stmpe->regs with one of the following. 5127e34995SRabin Vincent */ 5227e34995SRabin Vincent enum { 5327e34995SRabin Vincent STMPE_IDX_CHIP_ID, 540f4be8cfSPatrice Chotard STMPE_IDX_SYS_CTRL, 550f4be8cfSPatrice Chotard STMPE_IDX_SYS_CTRL2, 5627e34995SRabin Vincent STMPE_IDX_ICR_LSB, 5727e34995SRabin Vincent STMPE_IDX_IER_LSB, 58897ac667SPatrice Chotard STMPE_IDX_IER_MSB, 59230f13a5SJean-Nicolas Graux STMPE_IDX_ISR_LSB, 6027e34995SRabin Vincent STMPE_IDX_ISR_MSB, 6127e34995SRabin Vincent STMPE_IDX_GPMR_LSB, 62897ac667SPatrice Chotard STMPE_IDX_GPMR_CSB, 63897ac667SPatrice Chotard STMPE_IDX_GPMR_MSB, 6427e34995SRabin Vincent STMPE_IDX_GPSR_LSB, 65897ac667SPatrice Chotard STMPE_IDX_GPSR_CSB, 66897ac667SPatrice Chotard STMPE_IDX_GPSR_MSB, 6727e34995SRabin Vincent STMPE_IDX_GPCR_LSB, 68897ac667SPatrice Chotard STMPE_IDX_GPCR_CSB, 69897ac667SPatrice Chotard STMPE_IDX_GPCR_MSB, 7027e34995SRabin Vincent STMPE_IDX_GPDR_LSB, 71897ac667SPatrice Chotard STMPE_IDX_GPDR_CSB, 72897ac667SPatrice Chotard STMPE_IDX_GPDR_MSB, 73897ac667SPatrice Chotard STMPE_IDX_GPEDR_LSB, 74897ac667SPatrice Chotard STMPE_IDX_GPEDR_CSB, 7527e34995SRabin Vincent STMPE_IDX_GPEDR_MSB, 7627e34995SRabin Vincent STMPE_IDX_GPRER_LSB, 77897ac667SPatrice Chotard STMPE_IDX_GPRER_CSB, 78897ac667SPatrice Chotard STMPE_IDX_GPRER_MSB, 7927e34995SRabin Vincent STMPE_IDX_GPFER_LSB, 80897ac667SPatrice Chotard STMPE_IDX_GPFER_CSB, 81897ac667SPatrice Chotard STMPE_IDX_GPFER_MSB, 8280e1dd82SLinus Walleij STMPE_IDX_GPPUR_LSB, 8380e1dd82SLinus Walleij STMPE_IDX_GPPDR_LSB, 8427e34995SRabin Vincent STMPE_IDX_GPAFR_U_MSB, 8527e34995SRabin Vincent STMPE_IDX_IEGPIOR_LSB, 86897ac667SPatrice Chotard STMPE_IDX_IEGPIOR_CSB, 87897ac667SPatrice Chotard STMPE_IDX_IEGPIOR_MSB, 88230f13a5SJean-Nicolas Graux STMPE_IDX_ISGPIOR_LSB, 89897ac667SPatrice Chotard STMPE_IDX_ISGPIOR_CSB, 9027e34995SRabin Vincent STMPE_IDX_ISGPIOR_MSB, 9127e34995SRabin Vincent STMPE_IDX_MAX, 9227e34995SRabin Vincent }; 9327e34995SRabin Vincent 9427e34995SRabin Vincent 9527e34995SRabin Vincent struct stmpe_variant_info; 961a6e4b74SViresh Kumar struct stmpe_client_info; 97fc1882dcSLinus Walleij struct stmpe_platform_data; 9827e34995SRabin Vincent 9927e34995SRabin Vincent /** 10027e34995SRabin Vincent * struct stmpe - STMPE MFD structure 1019c9e3214SLinus Walleij * @vcc: optional VCC regulator 1029c9e3214SLinus Walleij * @vio: optional VIO regulator 10327e34995SRabin Vincent * @lock: lock protecting I/O operations 10427e34995SRabin Vincent * @irq_lock: IRQ bus lock 10527e34995SRabin Vincent * @dev: device, mostly for dev_dbg() 10676f93992SLee Jones * @irq_domain: IRQ domain 1071a6e4b74SViresh Kumar * @client: client - i2c or spi 1081a6e4b74SViresh Kumar * @ci: client specific information 1094dcaa6b6SOm Prakash * @partnum: part number 11027e34995SRabin Vincent * @variant: the detected STMPE model number 11127e34995SRabin Vincent * @regs: list of addresses of registers which are at different addresses on 11227e34995SRabin Vincent * different variants. Indexed by one of STMPE_IDX_*. 11373de16dbSViresh Kumar * @irq: irq number for stmpe 11427e34995SRabin Vincent * @num_gpios: number of gpios, differs for variants 11527e34995SRabin Vincent * @ier: cache of IER registers for bus_lock 11627e34995SRabin Vincent * @oldier: cache of IER registers for bus_lock 11727e34995SRabin Vincent * @pdata: platform data 11827e34995SRabin Vincent */ 11927e34995SRabin Vincent struct stmpe { 1209c9e3214SLinus Walleij struct regulator *vcc; 1219c9e3214SLinus Walleij struct regulator *vio; 12227e34995SRabin Vincent struct mutex lock; 12327e34995SRabin Vincent struct mutex irq_lock; 12427e34995SRabin Vincent struct device *dev; 12576f93992SLee Jones struct irq_domain *domain; 1261a6e4b74SViresh Kumar void *client; 1271a6e4b74SViresh Kumar struct stmpe_client_info *ci; 12827e34995SRabin Vincent enum stmpe_partnum partnum; 12927e34995SRabin Vincent struct stmpe_variant_info *variant; 13027e34995SRabin Vincent const u8 *regs; 13127e34995SRabin Vincent 13273de16dbSViresh Kumar int irq; 13327e34995SRabin Vincent int num_gpios; 13427e34995SRabin Vincent u8 ier[2]; 13527e34995SRabin Vincent u8 oldier[2]; 13627e34995SRabin Vincent struct stmpe_platform_data *pdata; 13727e34995SRabin Vincent }; 13827e34995SRabin Vincent 13927e34995SRabin Vincent extern int stmpe_reg_write(struct stmpe *stmpe, u8 reg, u8 data); 14027e34995SRabin Vincent extern int stmpe_reg_read(struct stmpe *stmpe, u8 reg); 14127e34995SRabin Vincent extern int stmpe_block_read(struct stmpe *stmpe, u8 reg, u8 length, 14227e34995SRabin Vincent u8 *values); 14327e34995SRabin Vincent extern int stmpe_block_write(struct stmpe *stmpe, u8 reg, u8 length, 14427e34995SRabin Vincent const u8 *values); 14527e34995SRabin Vincent extern int stmpe_set_bits(struct stmpe *stmpe, u8 reg, u8 mask, u8 val); 14627e34995SRabin Vincent extern int stmpe_set_altfunc(struct stmpe *stmpe, u32 pins, 14727e34995SRabin Vincent enum stmpe_block block); 14827e34995SRabin Vincent extern int stmpe_enable(struct stmpe *stmpe, unsigned int blocks); 14927e34995SRabin Vincent extern int stmpe_disable(struct stmpe *stmpe, unsigned int blocks); 15027e34995SRabin Vincent 151b8e9cf0bSWolfram Sang #define STMPE_GPIO_NOREQ_811_TOUCH (0xf0) 152b8e9cf0bSWolfram Sang 15327e34995SRabin Vincent #endif 154