?? tatung-raw.c.svn-base
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#include <stdlib.h>#include <stdio.h>#include <unistd.h>#include "config.h"#include "tslib-private.h"struct tatung_ts_event { /* Tatung touchscreen 4bytes protocol */ unsigned char x1; unsigned char x2; unsigned char y1; unsigned char y2;};static int tatung_read(struct tslib_module_info *inf, struct ts_sample *samp, int nr){ struct tsdev *ts = inf->dev; struct tatung_ts_event *tatung_evt; int ret; int total = 0; tatung_evt = alloca(sizeof(*tatung_evt) * nr); ret = read(ts->fd, tatung_evt, sizeof(*tatung_evt) * nr); if(ret > 0) { int nr = ret / sizeof(*tatung_evt); while(ret >= (int)sizeof(*tatung_evt)) { if (tatung_evt->x1==240 || tatung_evt->x2==240 || tatung_evt->y1==240 || tatung_evt->y2==240) { ret = nr; return ret; } samp->x = (tatung_evt->x1)*31 + (tatung_evt->x2)-64; samp->y = (tatung_evt->y1)*31 + (tatung_evt->y2)-192; samp->pressure=1; //samp->pressure = tatung_evt->pressure;#ifdef DEBUG fprintf(stderr,"RAW---------------------------> %d %d %d\n",samp->x,samp->y,samp->pressure);#endif /*DEBUG*/ gettimeofday(&samp->tv,NULL); samp++; tatung_evt++; ret -= sizeof(*tatung_evt); } } else { return -1; } samp->pressure=0; ret = nr; return ret;}static const struct tslib_ops tatung_ops ={ .read = tatung_read,};TSAPI struct tslib_module_info *mod_init(struct tsdev *dev, const char *params){ struct tslib_module_info *m; m = malloc(sizeof(struct tslib_module_info)); if (m == NULL) return NULL; m->ops = &tatung_ops; return m;}?? 快捷鍵說明
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