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Cypress TrueTouch(tm) Standard Product controllers are found in a wide range of embedded devices. This driver add support for a variety of TTSP controllers. Since the hardware is capable of tracking identifiable contacts, multi-touch protocol type B (stateful) is used to report contact information. The driver is composed of a core driver that process the data sent by the contacts and a set of bus specific interface modules. This patch adds the base core TTSP driver. Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/*
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* Header file for:
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* Cypress TrueTouch(TM) Standard Product (TTSP) touchscreen drivers.
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* For use with Cypress Txx3xx parts.
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* Supported parts include:
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* CY8CTST341
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* CY8CTMA340
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*
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* Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc.
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* Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2, and only version 2, as published by the
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* Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Contact Cypress Semiconductor at www.cypress.com (kev@cypress.com)
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*
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*/
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#ifndef _CYTTSP_H_
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#define _CYTTSP_H_
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#define CY_SPI_NAME "cyttsp-spi"
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#define CY_I2C_NAME "cyttsp-i2c"
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/* Active Power state scanning/processing refresh interval */
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#define CY_ACT_INTRVL_DFLT 0x00 /* ms */
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/* touch timeout for the Active power */
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#define CY_TCH_TMOUT_DFLT 0xFF /* ms */
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/* Low Power state scanning/processing refresh interval */
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#define CY_LP_INTRVL_DFLT 0x0A /* ms */
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/* Active distance in pixels for a gesture to be reported */
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#define CY_ACT_DIST_DFLT 0xF8 /* pixels */
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struct cyttsp_platform_data {
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u32 maxx;
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u32 maxy;
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bool use_hndshk;
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u8 act_dist; /* Active distance */
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u8 act_intrvl; /* Active refresh interval; ms */
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u8 tch_tmout; /* Active touch timeout; ms */
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u8 lp_intrvl; /* Low power refresh interval; ms */
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int (*init)(void);
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void (*exit)(void);
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char *name;
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s16 irq_gpio;
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u8 *bl_keys;
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};
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#endif /* _CYTTSP_H_ */
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