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Diffstat (limited to 'include/hwdata.h')
| -rw-r--r-- | include/hwdata.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/include/hwdata.h b/include/hwdata.h new file mode 100644 index 0000000..21864dc --- /dev/null +++ b/include/hwdata.h @@ -0,0 +1,75 @@ +/*************************************************************************** + * + * Multitouch X driver + * Copyright (C) 2008 Henrik Rydberg <rydberg@euromail.se> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + **************************************************************************/ + +#ifndef HWDATA_H +#define HWDATA_H + +#include "common.h" +#include "button.h" + +#define BIT_MT_TOUCH_MAJOR 0 +#define BIT_MT_TOUCH_MINOR 1 +#define BIT_MT_WIDTH_MAJOR 2 +#define BIT_MT_WIDTH_MINOR 3 +#define BIT_MT_ORIENTATION 4 +#define BIT_MT_PRESSURE 5 +#define BIT_MT_POSITION_X 6 +#define BIT_MT_POSITION_Y 7 +#define BIT_MT_CNT 8 + +struct FingerData { + int touch_major, touch_minor; + int width_major, width_minor; + int orientation, pressure; + int position_x, position_y; +}; + +/** + * struct HWData - hardware reads + * + * @finger: finger data + * @mask: bits corresponding to data actually read (readonly) + * @mread: bits corresponding to data in progress (writeonly) + * @button: bitmask of buttons + * @nfinger: number of fingers actually read (readonly) + * @nread: number of fingers in progress (writeonly) + * + */ +struct HWData { + struct FingerData finger[DIM_FINGER]; + unsigned mask[DIM_FINGER], mread[DIM_FINGER]; + unsigned button; + int nfinger, mtread, nread; + mstime_t evtime; +}; + +void init_hwdata(struct HWData *hw); +int read_hwdata(struct HWData *hw, const struct input_event* ev); +void output_hwdata(const struct HWData *hw); + +static inline int finger_dist2(const struct FingerData *a, + const struct FingerData *b) +{ + return dist2(a->position_x - b->position_x, + a->position_y - b->position_y); +} + +#endif |