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.
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| 1 | +/* | |
| 2 | + * Header file for: | |
| 3 | + * Cypress TrueTouch(TM) Standard Product (TTSP) touchscreen drivers. | |
| 4 | + * For use with Cypress Txx3xx parts. | |
| 5 | + * Supported parts include: | |
| 6 | + * CY8CTST341 | |
| 7 | + * CY8CTMA340 | |
| 8 | + * | |
| 9 | + * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc. | |
| 10 | + * Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org> | |
| 11 | + * | |
| 12 | + * This program is free software; you can redistribute it and/or | |
| 13 | + * modify it under the terms of the GNU General Public License | |
| 14 | + * version 2, and only version 2, as published by the | |
| 15 | + * Free Software Foundation. | |
| 16 | + * | |
| 17 | + * This program is distributed in the hope that it will be useful, | |
| 18 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 20 | + * GNU General Public License for more details. | |
| 21 | + * | |
| 22 | + * You should have received a copy of the GNU General Public License along | |
| 23 | + * with this program; if not, write to the Free Software Foundation, Inc., | |
| 24 | + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
| 25 | + * | |
| 26 | + * Contact Cypress Semiconductor at www.cypress.com (kev@cypress.com) | |
| 27 | + * | |
| 28 | + */ | |
| 29 | +#ifndef _CYTTSP_H_ | |
| 30 | +#define _CYTTSP_H_ | |
| 31 | + | |
| 32 | +#define CY_SPI_NAME "cyttsp-spi" | |
| 33 | +#define CY_I2C_NAME "cyttsp-i2c" | |
| 34 | +/* Active Power state scanning/processing refresh interval */ | |
| 35 | +#define CY_ACT_INTRVL_DFLT 0x00 /* ms */ | |
| 36 | +/* touch timeout for the Active power */ | |
| 37 | +#define CY_TCH_TMOUT_DFLT 0xFF /* ms */ | |
| 38 | +/* Low Power state scanning/processing refresh interval */ | |
| 39 | +#define CY_LP_INTRVL_DFLT 0x0A /* ms */ | |
| 40 | +/* Active distance in pixels for a gesture to be reported */ | |
| 41 | +#define CY_ACT_DIST_DFLT 0xF8 /* pixels */ | |
| 42 | + | |
| 43 | +struct cyttsp_platform_data { | |
| 44 | + u32 maxx; | |
| 45 | + u32 maxy; | |
| 46 | + bool use_hndshk; | |
| 47 | + u8 act_dist; /* Active distance */ | |
| 48 | + u8 act_intrvl; /* Active refresh interval; ms */ | |
| 49 | + u8 tch_tmout; /* Active touch timeout; ms */ | |
| 50 | + u8 lp_intrvl; /* Low power refresh interval; ms */ | |
| 51 | + int (*init)(void); | |
| 52 | + void (*exit)(void); | |
| 53 | + char *name; | |
| 54 | + s16 irq_gpio; | |
| 55 | + u8 *bl_keys; | |
| 56 | +}; | |
| 57 | + | |
| 58 | +#endif /* _CYTTSP_H_ */ | |