diff options
Diffstat (limited to 'mtdev/hwdata.c')
| -rw-r--r-- | mtdev/hwdata.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/mtdev/hwdata.c b/mtdev/hwdata.c new file mode 100644 index 0000000..689418e --- /dev/null +++ b/mtdev/hwdata.c @@ -0,0 +1,133 @@ +/*************************************************************************** + * + * 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 + * + **************************************************************************/ + +#include "hwdata.h" + +void init_hwdata(struct HWData *hw) +{ + memset(hw, 0, sizeof(struct HWData)); +} + +static void set_value(struct HWData *hw, int code, int value) +{ + if (hw->nread < DIM_FINGER) { + (&hw->finger[hw->nread].touch_major)[code] = value; + SETBIT(hw->mread[hw->nread], code); + } + hw->mtread++; +} + +static void accept_finger(struct HWData *hw) +{ + if (hw->nread < DIM_FINGER && + GETBIT(hw->mread[hw->nread], BIT_MT_POSITION_X) && + GETBIT(hw->mread[hw->nread], BIT_MT_POSITION_Y)) { + hw->mask[hw->nread] = hw->mread[hw->nread]; + hw->nread++; + } + if (hw->nread < DIM_FINGER) + hw->mread[hw->nread] = 0; +} + +static void accept_packet(struct HWData *hw, const struct timeval* tv) +{ + static const mstime_t ms = 1000; + if (hw->mtread) + hw->nfinger = hw->nread; + hw->mtread = 0; + hw->nread = 0; + hw->mread[hw->nread] = 0; + hw->evtime = tv->tv_usec / ms + tv->tv_sec * ms; +} + +int read_hwdata(struct HWData *hw, const struct input_event* ev) +{ + switch (ev->type) { + case EV_SYN: + switch (ev->code) { + case SYN_REPORT: + accept_packet(hw, &ev->time); + return 1; + case SYN_MT_REPORT: + accept_finger(hw); + break; + } + break; + case EV_KEY: + switch (ev->code) { + case BTN_TOUCH: + hw->mtread++; + break; + case BTN_LEFT: + if (ev->value) + SETBIT(hw->button, MT_BUTTON_LEFT); + else + CLEARBIT(hw->button, MT_BUTTON_LEFT); + break; + case BTN_MIDDLE: + if (ev->value) + SETBIT(hw->button, MT_BUTTON_MIDDLE); + else + CLEARBIT(hw->button, MT_BUTTON_MIDDLE); + break; + case BTN_RIGHT: + if (ev->value) + SETBIT(hw->button, MT_BUTTON_RIGHT); + else + CLEARBIT(hw->button, MT_BUTTON_RIGHT); + break; + } + break; + case EV_ABS: + switch (ev->code) { + case ABS_MT_TOUCH_MAJOR: + set_value(hw, BIT_MT_TOUCH_MAJOR, ev->value); + break; + case ABS_MT_TOUCH_MINOR: + set_value(hw, BIT_MT_TOUCH_MINOR, ev->value); + break; + case ABS_MT_WIDTH_MAJOR: + set_value(hw, BIT_MT_WIDTH_MAJOR, ev->value); + break; + case ABS_MT_WIDTH_MINOR: + set_value(hw, BIT_MT_WIDTH_MINOR, ev->value); + break; + case ABS_MT_ORIENTATION: + set_value(hw, BIT_MT_ORIENTATION, ev->value); + break; + case ABS_MT_PRESSURE: + set_value(hw, BIT_MT_PRESSURE, ev->value); + break; + case ABS_MT_POSITION_X: + set_value(hw, BIT_MT_POSITION_X, ev->value); + break; + case ABS_MT_POSITION_Y: + set_value(hw, BIT_MT_POSITION_Y, ev->value); + break; + } + break; + } + return 0; +} + +void output_hwdata(const struct HWData *hw) +{ +} |