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141 lines
3.6 KiB
141 lines
3.6 KiB
/* |
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* Copyright (C) ST-Ericsson SA 2010 |
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* |
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* License Terms: GNU General Public License, version 2 |
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* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson |
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*/ |
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#ifndef __LINUX_MFD_STMPE_H |
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#define __LINUX_MFD_STMPE_H |
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#include <linux/mutex.h> |
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struct device; |
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struct regulator; |
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enum stmpe_block { |
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STMPE_BLOCK_GPIO = 1 << 0, |
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STMPE_BLOCK_KEYPAD = 1 << 1, |
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STMPE_BLOCK_TOUCHSCREEN = 1 << 2, |
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STMPE_BLOCK_ADC = 1 << 3, |
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STMPE_BLOCK_PWM = 1 << 4, |
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STMPE_BLOCK_ROTATOR = 1 << 5, |
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}; |
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enum stmpe_partnum { |
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STMPE610, |
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STMPE801, |
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STMPE811, |
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STMPE1601, |
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STMPE1801, |
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STMPE2401, |
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STMPE2403, |
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STMPE_NBR_PARTS |
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}; |
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/* |
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* For registers whose locations differ on variants, the correct address is |
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* obtained by indexing stmpe->regs with one of the following. |
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*/ |
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enum { |
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STMPE_IDX_CHIP_ID, |
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STMPE_IDX_ICR_LSB, |
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STMPE_IDX_IER_LSB, |
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STMPE_IDX_ISR_LSB, |
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STMPE_IDX_ISR_MSB, |
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STMPE_IDX_GPMR_LSB, |
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STMPE_IDX_GPSR_LSB, |
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STMPE_IDX_GPCR_LSB, |
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STMPE_IDX_GPDR_LSB, |
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STMPE_IDX_GPEDR_MSB, |
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STMPE_IDX_GPRER_LSB, |
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STMPE_IDX_GPFER_LSB, |
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STMPE_IDX_GPPUR_LSB, |
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STMPE_IDX_GPPDR_LSB, |
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STMPE_IDX_GPAFR_U_MSB, |
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STMPE_IDX_IEGPIOR_LSB, |
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STMPE_IDX_ISGPIOR_LSB, |
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STMPE_IDX_ISGPIOR_MSB, |
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STMPE_IDX_MAX, |
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}; |
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struct stmpe_variant_info; |
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struct stmpe_client_info; |
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/** |
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* struct stmpe - STMPE MFD structure |
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* @vcc: optional VCC regulator |
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* @vio: optional VIO regulator |
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* @lock: lock protecting I/O operations |
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* @irq_lock: IRQ bus lock |
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* @dev: device, mostly for dev_dbg() |
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* @irq_domain: IRQ domain |
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* @client: client - i2c or spi |
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* @ci: client specific information |
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* @partnum: part number |
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* @variant: the detected STMPE model number |
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* @regs: list of addresses of registers which are at different addresses on |
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* different variants. Indexed by one of STMPE_IDX_*. |
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* @irq: irq number for stmpe |
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* @num_gpios: number of gpios, differs for variants |
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* @ier: cache of IER registers for bus_lock |
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* @oldier: cache of IER registers for bus_lock |
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* @pdata: platform data |
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*/ |
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struct stmpe { |
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struct regulator *vcc; |
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struct regulator *vio; |
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struct mutex lock; |
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struct mutex irq_lock; |
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struct device *dev; |
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struct irq_domain *domain; |
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void *client; |
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struct stmpe_client_info *ci; |
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enum stmpe_partnum partnum; |
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struct stmpe_variant_info *variant; |
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const u8 *regs; |
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int irq; |
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int num_gpios; |
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u8 ier[2]; |
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u8 oldier[2]; |
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struct stmpe_platform_data *pdata; |
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}; |
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extern int stmpe_reg_write(struct stmpe *stmpe, u8 reg, u8 data); |
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extern int stmpe_reg_read(struct stmpe *stmpe, u8 reg); |
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extern int stmpe_block_read(struct stmpe *stmpe, u8 reg, u8 length, |
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u8 *values); |
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extern int stmpe_block_write(struct stmpe *stmpe, u8 reg, u8 length, |
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const u8 *values); |
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extern int stmpe_set_bits(struct stmpe *stmpe, u8 reg, u8 mask, u8 val); |
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extern int stmpe_set_altfunc(struct stmpe *stmpe, u32 pins, |
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enum stmpe_block block); |
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extern int stmpe_enable(struct stmpe *stmpe, unsigned int blocks); |
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extern int stmpe_disable(struct stmpe *stmpe, unsigned int blocks); |
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#define STMPE_GPIO_NOREQ_811_TOUCH (0xf0) |
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/** |
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* struct stmpe_platform_data - STMPE platform data |
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* @id: device id to distinguish between multiple STMPEs on the same board |
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* @blocks: bitmask of blocks to enable (use STMPE_BLOCK_*) |
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* @irq_trigger: IRQ trigger to use for the interrupt to the host |
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* @autosleep: bool to enable/disable stmpe autosleep |
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* @autosleep_timeout: inactivity timeout in milliseconds for autosleep |
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* @irq_over_gpio: true if gpio is used to get irq |
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* @irq_gpio: gpio number over which irq will be requested (significant only if |
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* irq_over_gpio is true) |
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*/ |
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struct stmpe_platform_data { |
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int id; |
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unsigned int blocks; |
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unsigned int irq_trigger; |
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bool autosleep; |
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bool irq_over_gpio; |
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int irq_gpio; |
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int autosleep_timeout; |
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}; |
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#endif
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