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Diffstat (limited to 'nuttx/drivers/input/stmpe811.h')
| -rw-r--r-- | nuttx/drivers/input/stmpe811.h | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/nuttx/drivers/input/stmpe811.h b/nuttx/drivers/input/stmpe811.h deleted file mode 100644 index f6d646527..000000000 --- a/nuttx/drivers/input/stmpe811.h +++ /dev/null @@ -1,245 +0,0 @@ -/******************************************************************************************** - * drivers/input/stmpe811.h - * - * Copyright (C) 2012 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * References: - * "STMPE811 S-Touch® advanced resistive touchscreen controller with 8-bit - * GPIO expander," Doc ID 14489 Rev 6, CD00186725, STMicroelectronics" - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ********************************************************************************************/ - -#ifndef __DRIVERS_INPUT_STMPE811_H -#define __DRIVERS_INPUT_STMPE811_H - -/******************************************************************************************** - * Included Files - ********************************************************************************************/ - -#include <nuttx/config.h> - -#include <wdog.h> -#include <semaphore.h> - -#include <nuttx/clock.h> -#include <nuttx/wqueue.h> -#include <nuttx/input/stmpe811.h> - -#if defined(CONFIG_INPUT) && defined(CONFIG_INPUT_STMPE811) - -/******************************************************************************************** - * Pre-Processor Definitions - ********************************************************************************************/ -/* Configuration ****************************************************************************/ -/* Reference counting is partially implemented, but not needed in the current design. - */ - -#undef CONFIG_STMPE811_REFCNT - -/* No support for the SPI interface yet */ - -#ifdef CONFIG_STMPE811_SPI -# error "Only the STMPE811 I2C interface is supported by this driver" -#endif - -/* Driver support ***************************************************************************/ -/* This format is used to construct the /dev/input[n] device driver path. It defined here - * so that it will be used consistently in all places. - */ - -#define DEV_FORMAT "/dev/input%d" -#define DEV_NAMELEN 16 - -/* STMPE811 Resources ************************************************************************/ -#ifndef CONFIG_STMPE811_TSC_DISABLE -# define STMPE811_ADC_NPINS 4 /* Only pins 0-3 can be used for ADC */ -# define STMPE811_GPIO_NPINS 4 /* Only pins 0-3 can be used as GPIOs */ -#else -# define STMPE811_ADC_NPINS 8 /* All pins can be used for ADC */ -# define STMPE811_GPIO_NPINS 8 /* All pins can be used as GPIOs */ -#endif - -/* Driver flags */ - -#define STMPE811_FLAGS_TSC_INITIALIZED (1 << 0) /* 1: The TSC block has been initialized */ -#define STMPE811_FLAGS_GPIO_INITIALIZED (1 << 1) /* 1: The GIO block has been initialized */ -#define STMPE811_FLAGS_ADC_INITIALIZED (1 << 2) /* 1: The ADC block has been initialized */ -#define STMPE811_FLAGS_TS_INITIALIZED (1 << 3) /* 1: The TS block has been initialized */ - -/* Timeout to detect missing pen up events */ - -#define STMPE811_PENUP_TICKS ((100 + (MSEC_PER_TICK-1)) / MSEC_PER_TICK) - -/******************************************************************************************** - * Public Types - ********************************************************************************************/ -/* This describes the state of one contact */ - -enum stmpe811_contact_3 -{ - CONTACT_NONE = 0, /* No contact */ - CONTACT_DOWN, /* First contact */ - CONTACT_MOVE, /* Same contact, possibly different position */ - CONTACT_UP, /* Contact lost */ -}; - -/* This structure describes the results of one STMPE811 sample */ - -struct stmpe811_sample_s -{ - uint8_t id; /* Sampled touch point ID */ - uint8_t contact; /* Contact state (see enum stmpe811_contact_e) */ - bool valid; /* True: x,y,z contain valid, sampled data */ - uint16_t x; /* Measured X position */ - uint16_t y; /* Measured Y position */ - uint8_t z; /* Measured Z index */ -}; - -/* This structure represents the state of the STMPE811 driver */ - -struct stmpe811_dev_s -{ -#ifdef CONFIG_STMPE811_MULTIPLE - FAR struct stmpe811_dev_s *flink; /* Supports a singly linked list of drivers */ -#endif - - /* Common fields */ - - FAR struct stmpe811_config_s *config; /* Board configuration data */ - sem_t exclsem; /* Manages exclusive access to this structure */ -#ifdef CONFIG_STMPE811_SPI - FAR struct spi_dev_s *spi; /* Saved SPI driver instance */ -#else - FAR struct i2c_dev_s *i2c; /* Saved I2C driver instance */ -#endif - - uint8_t inuse; /* STMPE811 pins in use */ - uint8_t flags; /* See STMPE811_FLAGS_* definitions */ - struct work_s work; /* Supports the interrupt handling "bottom half" */ - - /* Fields that may be disabled to save size if touchscreen support is not used. */ - -#ifndef CONFIG_STMPE811_TSC_DISABLE -#ifdef CONFIG_STMPE811_REFCNT - uint8_t crefs; /* Number of times the device has been opened */ -#endif - uint8_t nwaiters; /* Number of threads waiting for STMPE811 data */ - uint8_t id; /* Current touch point ID */ - uint8_t minor; /* Touchscreen minor device number */ - volatile bool penchange; /* An unreported event is buffered */ - - uint16_t threshx; /* Thresholded X value */ - uint16_t threshy; /* Thresholded Y value */ - sem_t waitsem; /* Used to wait for the availability of data */ - - struct work_s timeout; /* Supports tiemeout work */ - WDOG_ID wdog; /* Timeout to detect missing pen down events */ - struct stmpe811_sample_s sample; /* Last sampled touch point data */ - - /* The following is a list if poll structures of threads waiting for - * driver events. The 'struct pollfd' reference for each open is also - * retained in the f_priv field of the 'struct file'. - */ - -#ifndef CONFIG_DISABLE_POLL - struct pollfd *fds[CONFIG_STMPE811_NPOLLWAITERS]; -#endif -#endif - - /* Fields that may be disabled to save size of GPIO support is not used */ - -#if !defined(CONFIG_STMPE811_GPIO_DISABLE) && !defined(CONFIG_STMPE811_GPIOINT_DISABLE) - stmpe811_handler_t handlers[STMPE811_GPIO_NPINS]; /* GPIO "interrupt handlers" */ -#endif -}; - -/******************************************************************************************** - * Public Function Prototypes - ********************************************************************************************/ - -/******************************************************************************************** - * Name: stmpe811_getreg8 - * - * Description: - * Read from an 8-bit STMPE811 register - * - ********************************************************************************************/ - -uint8_t stmpe811_getreg8(FAR struct stmpe811_dev_s *priv, uint8_t regaddr); - -/******************************************************************************************** - * Name: stmpe811_putreg8 - * - * Description: - * Write a value to an 8-bit STMPE811 register - * - ********************************************************************************************/ - -void stmpe811_putreg8(FAR struct stmpe811_dev_s *priv, uint8_t regaddr, uint8_t regval); - -/******************************************************************************************** - * Name: stmpe811_getreg16 - * - * Description: - * Read 16-bits of data from an STMPE-11 register - * - ********************************************************************************************/ - -uint16_t stmpe811_getreg16(FAR struct stmpe811_dev_s *priv, uint8_t regaddr); - -/******************************************************************************************** - * Name: stmpe811_tscint - * - * Description: - * Handle touchscreen interrupt events (this function actually executes in the context of - * the worker thread). - * - ********************************************************************************************/ - -#ifndef CONFIG_STMPE811_TSC_DISABLE -void stmpe811_tscworker(FAR struct stmpe811_dev_s *priv, uint8_t intsta) weak_function; -#endif - -/******************************************************************************************** - * Name: stmpe811_gpioworker - * - * Description: - * Handle GPIO interrupt events (this function actually executes in the context of the - * worker thread). - * - ********************************************************************************************/ - -#if !defined(CONFIG_STMPE811_GPIO_DISABLE) && !defined(CONFIG_STMPE811_GPIOINT_DISABLE) -void stmpe811_gpioworker(FAR struct stmpe811_dev_s *priv) weak_function; -#endif - -#endif /* CONFIG_INPUT && CONFIG_INPUT_STMPE811 */ -#endif /* __DRIVERS_INPUT_STMPE811_H */ |