* tslib/plugins/cy8mrln-palmpre.c
*
* Copyright (C) 2010 Frederik Sdun <frederik.sdun@googlemail.com>
- * Thomas Zimmermann <ml@vdm-design.de>
- *
+ * Thomas Zimmermann <ml@vdm-design.de>
+ * Simon Busch <morphis@gravedo.de>
*
* This file is placed under the LGPL. Please see the file
* COPYING for more details.
*
+ * Plugin for the cy8mrln touchscreen with the firmware used on the Palm Pre (Plus).
*
- * Pluging for the cy8mrln touchscreen with the Firmware used on the Palm Pre
*/
+
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
-#include <linux/spi/cy8mrln.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <stddef.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
-
+#include "cy8mrln.h"
#include "config.h"
#include "tslib-private.h"
#include "tslib-filter.h"
+#define SCREEN_WIDTH 319
+#define SCREEN_HEIGHT 527
+#define H_FIELDS 7
+#define V_FIELDS 11
+#define DEFAULT_SCANRATE 60
+#define DEFAULT_VERBOSE 0
+#define DEFAULT_WOT_THRESHOLD 22
+#define DEFAULT_SLEEPMODE CY8MRLN_ON_STATE
+#define DEFAULT_WOT_SCANRATE WOT_SCANRATE_512HZ
+#define DEFAULT_TIMESTAMP_MODE 1
+#define DEFAULT_TS_PRESSURE_MUL 4
+#define DEFAULT_NOISE 25
+
+#define container_of(ptr, type, member) ({ \
+ const typeof( ((type*)0)->member ) *__mptr = (ptr); \
+ (type *)( (char *)__mptr - offsetof(type, member)); })
+
struct cy8mrln_palmpre_input
{
- uint16_t n_r;
- uint16_t values[7][11];
- uint16_t ffff; //seperator? always ff
- uint8_t seq_nr1; //incremented if seq_nr0 = scanrate
- uint16_t seq_nr2; //incremeted if seq_nr1 = 255
- uint8_t unknown[4];
- uint8_t seq_nr0; //incremented. 0- scanrate
- uint8_t null; //\0
+ uint16_t n_r;
+ uint16_t field[H_FIELDS * V_FIELDS];
+ uint16_t ffff; /* always 0xffff */
+ uint8_t seq_nr1; /* incremented if seq_nr0 == scanrate */
+ uint16_t seq_nr2; /* incremeted if seq_nr1 == 255 */
+ uint8_t unknown[4];
+ uint8_t seq_nr0; /* incremented [0:scanrate] */
+ uint8_t null; /* NULL byte */
}__attribute__((packed));
struct tslib_cy8mrln_palmpre
{
- struct tslib_module_info module;
- uint16_t nulls[7][11];
+ struct tslib_module_info module;
+ uint16_t references[H_FIELDS * V_FIELDS];
+ int scanrate;
+ int verbose;
+ int wot_threshold;
+ int sleepmode;
+ int wot_scanrate;
+ int timestamp_mode;
+ int ts_pressure_multiplicator;
+ int noise;
+ int last_n_valid_samples;
+ struct ts_sample* last_valid_samples;
};
-static int scanrate = 60;
-static int verbose = 1;
-static int wot_threshold = 22;
-static int sleepmode = CY8MRLN_ON_STATE;
-static int wot_scanrate = WOT_SCANRATE_512HZ;
-static int timestamp_mode = 1;
-
-static int
-cy8mrln_palmpre_set_scanrate(struct tsdev* dev, int rate)
+static int cy8mrln_palmpre_set_scanrate(struct tslib_cy8mrln_palmpre* info, int rate);
+static int cy8mrln_palmpre_set_verbose(struct tslib_cy8mrln_palmpre* info, int v);
+static int cy8mrln_palmpre_set_sleepmode(struct tslib_cy8mrln_palmpre* info, int mode);
+static int cy8mrln_palmpre_set_wot_scanrate(struct tslib_cy8mrln_palmpre* info, int rate);
+static int cy8mrln_palmpre_set_wot_threshold(struct tslib_cy8mrln_palmpre* info, int v);
+static int cy8mrln_palmpre_set_timestamp_mode(struct tslib_cy8mrln_palmpre* info, int v);
+static int cy8mrln_palmpre_set_noise (struct tslib_cy8mrln_palmpre* info, int n);
+static int cy8mrln_palmpre_set_ts_pressure_multiplicator(struct tslib_cy8mrln_palmpre* info, int p);
+static int parse_scanrate(struct tslib_module_info *info, char *str, void *data);
+static int parse_verbose(struct tslib_module_info *info, char *str, void *data);
+static int parse_wot_scanrate(struct tslib_module_info *info, char *str, void *data);
+static int parse_wot_threshold(struct tslib_module_info *info, char *str, void *data);
+static int parse_sleepmode(struct tslib_module_info *info, char *str, void *data);
+static int parse_timestamp_mode(struct tslib_module_info *info, char *str, void *data);
+static int parse_noise(struct tslib_module_info *info, char *str, void *data);
+static int parse_ts_pressure_multiplicator (struct tslib_module_info *info, char *str, void *data);
+static void cy8mrln_palmpre_update_references(uint16_t references[H_FIELDS * V_FIELDS], uint16_t field[H_FIELDS * V_FIELDS]);
+static void cy8mrln_palmpre_interpolate(uint16_t field[H_FIELDS * V_FIELDS], int x, int y, struct ts_sample *out);
+static int cy8mrln_palmpre_fini(struct tslib_module_info *info);
+static int cy8mrln_palmpre_read(struct tslib_module_info *info, struct ts_sample *samp, int nr);
+TSAPI struct tslib_module_info *cy8mrln_palmpre_mod_init(struct tsdev *dev, const char *params);
+
+
+static int cy8mrln_palmpre_set_scanrate(struct tslib_cy8mrln_palmpre* info, int rate)
{
- if(ioctl(dev->fd,CY8MRLN_IOCTL_SET_SCANRATE,&rate) < 0)
- return -1;
- scanrate = rate;
+ if (info == NULL || info->module.dev == NULL || ioctl(info->module.dev->fd,CY8MRLN_IOCTL_SET_SCANRATE,&rate) < 0)
+ goto error;
+
+ info->scanrate = rate;
return 0;
+
+error:
+ printf("TSLIB: cy8mrln_palmpre: ERROR: could not set scanrate value\n");
+ return -1;
}
-static int
-cy8mrln_palmpre_set_verbose(struct tsdev* dev, int v)
+static int cy8mrln_palmpre_set_verbose(struct tslib_cy8mrln_palmpre* info, int v)
{
- if(ioctl(dev->fd,CY8MRLN_IOCTL_SET_VERBOSE_MODE,&v) < 0)
- return -1;
- verbose = v;
+ if (info == NULL || info->module.dev == NULL || ioctl(info->module.dev->fd,CY8MRLN_IOCTL_SET_VERBOSE_MODE,&v) < 0)
+ goto error;
+
+ info->verbose = v;
return 0;
+
+error:
+ printf("TSLIB: cy8mrln_palmpre: ERROR: could not set verbose value\n");
+ return -1;
}
-static int
-cy8mrln_palmpre_set_sleepmode(struct tsdev* dev, int mode)
+static int cy8mrln_palmpre_set_sleepmode(struct tslib_cy8mrln_palmpre* info, int mode)
{
- if(ioctl(dev->fd,CY8MRLN_IOCTL_SET_SLEEPMODE,&mode) < 0)
- return -1;
- sleepmode = mode;
+ if (info == NULL || info->module.dev == NULL || ioctl(info->module.dev->fd,CY8MRLN_IOCTL_SET_SLEEPMODE,&mode) < 0)
+ goto error;
+
+ info->sleepmode = mode;
return 0;
+
+error:
+ printf("TSLIB: cy8mrln_palmpre: ERROR: could not set sleepmode value\n");
+ return -1;
}
-static int
-cy8mrln_palmpre_set_wot_scanrate(struct tsdev* dev, int rate)
+static int cy8mrln_palmpre_set_wot_scanrate(struct tslib_cy8mrln_palmpre* info, int rate)
{
- if(ioctl(dev->fd,CY8MRLN_IOCTL_SET_WOT_SCANRATE,&rate) < 0)
- return -1;
- wot_scanrate = rate;
+ if (info == NULL || info->module.dev == NULL || ioctl(info->module.dev->fd,CY8MRLN_IOCTL_SET_WOT_SCANRATE,&rate) < 0)
+ goto error;
+
+ info->wot_scanrate = rate;
return 0;
+
+error:
+ printf("TSLIB: cy8mrln_palmpre: ERROR: could not set scanrate value\n");
+ return -1;
}
-static int
-cy8mrln_palmpre_set_wot_threshold(struct tsdev* dev, int v)
+static int cy8mrln_palmpre_set_wot_threshold(struct tslib_cy8mrln_palmpre* info, int v)
{
+ if (info == NULL || info->module.dev == NULL)
+ goto error;
if(v < WOT_THRESHOLD_MIN || v > WOT_THRESHOLD_MAX)
- return -1;
- if(ioctl(dev->fd,CY8MRLN_IOCTL_SET_WOT_THRESHOLD,&v) < 0)
- return -1;
- wot_threshold = v;
+ goto error;
+ if(ioctl(info->module.dev->fd,CY8MRLN_IOCTL_SET_WOT_THRESHOLD,&v) < 0)
+ goto error;
+
+ info->wot_threshold = v;
return 0;
+
+error:
+ printf("TSLIB: cy8mrln_palmpre: ERROR: could not set wot treshhold value\n");
+ return -1;
}
-static int
-cy8mrln_palmpre_set_timestamp_mode(struct tsdev* dev, int v)
+static int cy8mrln_palmpre_set_timestamp_mode(struct tslib_cy8mrln_palmpre* info, int v)
{
v = v ? 1 : 0;
- if(ioctl(dev->fd,CY8MRLN_IOCTL_SET_TIMESTAMP_MODE,&v) < 0)
- return -1;
- timestamp_mode = v;
+ if(info == NULL || info->module.dev == NULL || ioctl(info->module.dev->fd,CY8MRLN_IOCTL_SET_TIMESTAMP_MODE,&v) < 0)
+ goto error;
+ info->timestamp_mode = v;
return 0;
+
+error:
+ printf("TSLIB: cy8mrln_palmpre: ERROR: could not set timestamp value\n");
+ return -1;
}
-static int
-parse_scanrate(struct tslib_module_info *info, char *str, void *data)
+static int cy8mrln_palmpre_set_noise (struct tslib_cy8mrln_palmpre* info, int n)
{
- (void)data;
- struct tslib_cy8mrln_palmpre *i = (struct tslib_cy8mrln_palmpre*) info;
+ if (info == NULL) {
+ printf("TSLIB: cy8mrln_palmpre: ERROR: could not set noise value\n");
+ return -1;
+ }
+ info->noise = n;
+ return 0;
+}
+
+static int cy8mrln_palmpre_set_ts_pressure_multiplicator(struct tslib_cy8mrln_palmpre* info, int p)
+{
+ if (info == NULL) {
+ printf("TSLIB: cy8mrln_palmpre: ERROR: could not set ts_pressure value\n");
+ return -1;
+ }
+ info->ts_pressure_multiplicator = p;
+ return 0;
+}
+
+static int parse_scanrate(struct tslib_module_info *info, char *str, void *data)
+{
+ (void)data;
+ struct tslib_cy8mrln_palmpre *i = container_of(info, struct tslib_cy8mrln_palmpre, module);
unsigned long rate = strtoul(str, NULL, 0);
if(rate == ULONG_MAX && errno == ERANGE)
return -1;
- return cy8mrln_palmpre_set_scanrate(i->module.dev, scanrate);
+ return cy8mrln_palmpre_set_scanrate(i, rate);
}
-static int
-parse_verbose(struct tslib_module_info *info, char *str, void *data)
+static int parse_verbose(struct tslib_module_info *info, char *str, void *data)
{
- (void)data;
- struct tslib_cy8mrln_palmpre *i = (struct tslib_cy8mrln_palmpre*) info;
+ (void)data;
+ struct tslib_cy8mrln_palmpre *i = container_of(info, struct tslib_cy8mrln_palmpre, module);
unsigned long v = strtoul(str, NULL, 0);
if(v == ULONG_MAX && errno == ERANGE)
return -1;
- return cy8mrln_palmpre_set_verbose(i->module.dev, scanrate);
+ return cy8mrln_palmpre_set_verbose(i, v);
}
-static int
-parse_wot_scanrate(struct tslib_module_info *info, char *str, void *data)
+static int parse_wot_scanrate(struct tslib_module_info *info, char *str, void *data)
{
- (void)data;
- struct tslib_cy8mrln_palmpre *i = (struct tslib_cy8mrln_palmpre*) info;
+ (void)data;
+ struct tslib_cy8mrln_palmpre *i = container_of(info, struct tslib_cy8mrln_palmpre, module);
unsigned long rate = strtoul(str, NULL, 0);
- return cy8mrln_palmpre_set_wot_scanrate(i->module.dev, rate);
+ return cy8mrln_palmpre_set_wot_scanrate(i, rate);
}
-static int
-parse_wot_threshold(struct tslib_module_info *info, char *str, void *data)
+static int parse_wot_threshold(struct tslib_module_info *info, char *str, void *data)
{
- (void)data;
- struct tslib_cy8mrln_palmpre *i = (struct tslib_cy8mrln_palmpre*) info;
+ (void)data;
+ struct tslib_cy8mrln_palmpre *i = container_of(info, struct tslib_cy8mrln_palmpre, module);
unsigned long threshold = strtoul(str, NULL, 0);
- return cy8mrln_palmpre_set_wot_threshold(i->module.dev, threshold);
+ return cy8mrln_palmpre_set_wot_threshold(i, threshold);
}
-static int
-parse_sleepmode(struct tslib_module_info *info, char *str, void *data)
+static int parse_sleepmode(struct tslib_module_info *info, char *str, void *data)
{
- (void)data;
- struct tslib_cy8mrln_palmpre *i = (struct tslib_cy8mrln_palmpre*) info;
+ (void)data;
+ struct tslib_cy8mrln_palmpre *i = container_of(info, struct tslib_cy8mrln_palmpre, module);
unsigned long sleep = strtoul(str, NULL, 0);
- return cy8mrln_palmpre_set_sleepmode(i->module.dev, sleep);
- return 0;
+ return cy8mrln_palmpre_set_sleepmode(i, sleep);
}
-static int
-parse_timestamp_mode(struct tslib_module_info *info, char *str, void *data)
+static int parse_timestamp_mode(struct tslib_module_info *info, char *str, void *data)
{
- (void)data;
+ (void)data;
struct tslib_cy8mrln_palmpre *i = (struct tslib_cy8mrln_palmpre*) info;
unsigned long sleep = strtoul(str, NULL, 0);
- return cy8mrln_palmpre_set_sleepmode(i->module.dev, sleep);
- return 0;
+ if(sleep == ULONG_MAX && errno == ERANGE)
+ return -1;
+
+
+ return cy8mrln_palmpre_set_sleepmode(i, sleep);
+}
+static int parse_noise(struct tslib_module_info *info, char *str, void *data)
+{
+ (void)data;
+ struct tslib_cy8mrln_palmpre *i = (struct tslib_cy8mrln_palmpre*) info;
+ unsigned long noise = strtoul (str, NULL, 0);
+
+ if(noise == ULONG_MAX && errno == ERANGE)
+ return -1;
+
+
+ return cy8mrln_palmpre_set_noise (i, noise);
}
-static const struct tslib_vars raw_vars[] =
+static int parse_ts_pressure_multiplicator(struct tslib_module_info *info, char *str, void *data)
{
- { "scanrate", NULL, parse_scanrate},
- { "verbose", NULL, parse_verbose},
- { "wot_scanrate", NULL, parse_wot_scanrate},
- { "wot_threshold", NULL, parse_wot_threshold},
- { "sleepmode", NULL, parse_sleepmode},
- { "timestamp_mode", NULL, parse_timestamp_mode}
-};
+ (void)data;
+ struct tslib_cy8mrln_palmpre *i = (struct tslib_cy8mrln_palmpre*) info;
+ unsigned long tp = strtoul (str, NULL, 0);
+
+ if(tp == ULONG_MAX && errno == ERANGE)
+ return -1;
+
+ return cy8mrln_palmpre_set_ts_pressure_multiplicator (i, tp);
+}
-#define NR_VARS (sizeof(raw_vars) / sizeof(raw_vars[0]))
+#define NR_VARS (sizeof(cy8mrln_palmpre_vars) / sizeof(cy8mrln_palmpre_vars[0]))
+/*
+ * f12
+ * f21 (x/y) f23
+ * f32
+ */
-static int
-cy8mrln_palmpre_read(struct tslib_module_info *info, struct ts_sample *samp, int nr)
+static void cy8mrln_palmpre_interpolate(uint16_t field[H_FIELDS * V_FIELDS], int x, int y, struct ts_sample *out)
{
- return 0;
+ float f12, f21, f23, f32;
+ int posx = SCREEN_WIDTH - SCREEN_WIDTH / H_FIELDS * x;
+ int posy = SCREEN_HEIGHT / V_FIELDS * y;
+ static const int dx = SCREEN_WIDTH / H_FIELDS;
+ static const int dy = SCREEN_HEIGHT / V_FIELDS;
+
+ /* caluculate corrections for top, bottom, left and right fields */
+ f12 = (y == 0) ? -0.5f : 0.5 * ((float)field[(y - 1) * H_FIELDS + x] / field[y * H_FIELDS + x]) - 0.5;
+ f32 = (y == (V_FIELDS - 1)) ? -0.5f : 0.5 * ((float)field[(y + 1) * H_FIELDS + x] / field[y * H_FIELDS + x]) - 0.5;
+ f21 = (x == (H_FIELDS - 1)) ? -0.5f : 0.5 * ((float)field[y * H_FIELDS + x + 1] / field[y * H_FIELDS + x]) - 0.5;
+ f23 = (x == 0) ? -0.5f : 0.5 * ((float) field[y * H_FIELDS + x - 1] / field[y * H_FIELDS + x]) - 0.5;
+
+ /* correct values for the edges, shift the mesuarment point by half a
+ * field diminsion to the outside */
+ /*
+ if (x == 0) {
+ posx = posx + dx / 2.0;
+ f21 = f21 * 2.0;
+ } else if (x == (H_FIELDS - 1)) {
+ posx = posx - dx / 2.0;
+ f23 = f23 * 2.0;
+ }
+
+ if (y == 0) {
+ posy = posy - dy / 2.0;
+ f32 = f32 * 2.0;
+ } else if (y == (V_FIELDS - 1)) {
+ posy = posy + dy / 2.0;
+ f12 = f12 * 2.0;
+ }
+ */
+
+ out->x = posx // + (f13 + f33 - f11 - f31) * dx /* use corners too?*/
+ + (f23 - f21) * dx;
+// + (f21 == 0.0) ? ((f23 * 2 + (dx / 2)) * dx) : (f23 * dx)
+// - (f23 == 0.0) ? ((f21 * 2 + (dx / 2)) * dx) : (f21 * dx)
+ //- (dx / 2);
+ out->y = posy // + (f31 + f33 - f11 - f13) * dy /* use corners too?*/
+ + (f32 - f12) * dy; // + (dy / 2);
+
+#ifdef DEBUG
+ fprintf(stderr, "RAW---------------------------> (%i/%i) f12: %f f21: %f, f23: %f, f32: %f\n", x, y, f12, f21, f23, f32);
+#endif /*DEBUG*/
}
-static int
-cy8mrln_palmpre_fini(struct tslib_module_info *inf)
+static int cy8mrln_palmpre_read(struct tslib_module_info *info, struct ts_sample *samp, int nr)
{
+ struct tsdev *ts = info->dev;
+ //We can only read one input struct at once
+ struct cy8mrln_palmpre_input cy8mrln_evt;
+ struct tslib_cy8mrln_palmpre *cy8mrln_info;
+ int max_x = 0, max_y = 0, max_value = 0, x, y;
+ uint16_t tmp_value;
+ int ret, valid_samples = 0;
+ struct ts_sample *p = samp;
+
+ /* initalize all samples with proper values */
+ memset(p, '\0', nr * sizeof (*p));
+
+ cy8mrln_info = container_of(info, struct tslib_cy8mrln_palmpre, module);
+
+ ret = read(ts->fd, &cy8mrln_evt, sizeof(cy8mrln_evt));
+ if (ret > 0) {
+ cy8mrln_palmpre_update_references (cy8mrln_info->references, cy8mrln_evt.field);
+ max_x = 0;
+ max_y = 0;
+ max_value = 0;
+ for (y = 0; y < V_FIELDS; y ++) {
+ for (x = 0; x < H_FIELDS; x++) {
+ tmp_value = cy8mrln_evt.field[y * H_FIELDS + x];
+
+ /* check for the maximum value */
+ if (tmp_value > max_value) {
+ max_value = tmp_value;
+ max_x = x;
+ max_y = y;
+ }
+ }
+ }
+ /* only caluclate events that are not noise */
+ if (max_value > cy8mrln_info->noise) {
+ cy8mrln_palmpre_interpolate(cy8mrln_evt.field, max_x, max_y, &samp[valid_samples]);
+ samp->pressure = cy8mrln_info->ts_pressure_multiplicator * max_value;
+#ifdef DEBUG
+ fprintf(stderr,"RAW for (%d/%d): %d-----------> %d %d %d\n",
+ max_x, max_y, max_value,samp->x, samp->y, samp->pressure);
+#endif /*DEBUG*/
+ gettimeofday(&samp->tv,NULL);
+ valid_samples++;
+ if (cy8mrln_info->last_valid_samples == NULL) {
+ cy8mrln_info->last_valid_samples = malloc (sizeof (struct ts_sample) * valid_samples);
+ } else if (cy8mrln_info->last_n_valid_samples != valid_samples) {
+ cy8mrln_info->last_valid_samples = realloc (cy8mrln_info->last_valid_samples, sizeof (struct ts_sample) * valid_samples);
+ }
+ memcpy (cy8mrln_info->last_valid_samples, samp, sizeof (struct ts_sample) * valid_samples);
+ cy8mrln_info->last_n_valid_samples = valid_samples;
+ } else {
+ //return last samples with pressure = 0 to show a mouse up
+ if (cy8mrln_info->last_valid_samples != NULL) {
+ valid_samples = cy8mrln_info->last_n_valid_samples;
+ memcpy (samp, cy8mrln_info->last_valid_samples, sizeof (struct ts_sample) * valid_samples);
+ for (x = 0; x < valid_samples; x++) {
+ samp[x].pressure = 0;
+ }
+ cy8mrln_info->last_n_valid_samples = 0;
+ free (cy8mrln_info->last_valid_samples);
+ cy8mrln_info->last_valid_samples = NULL;
+#ifdef DEBUG
+ fprintf (stderr, "cy8mrln_palmpre: Returning %i old values with 0 pressure\n", valid_samples);
+#endif
+ }
+ }
+ } else {
+ return -1;
+ }
+
+ return valid_samples;
+}
+
+static void cy8mrln_palmpre_update_references(uint16_t references[H_FIELDS * V_FIELDS], uint16_t field[H_FIELDS * V_FIELDS])
+{
+ int x, y;
+ for (y = 0; y < V_FIELDS; y ++) {
+ for (x = 0; x < H_FIELDS; x++) {
+ if (field[y * H_FIELDS + x] > references[y * H_FIELDS + x]) {
+ references [y * H_FIELDS + x] = field [y * H_FIELDS + x];
+ field [y * H_FIELDS + x] = 0;
+ } else {
+ field [y * H_FIELDS + x] = references [y * H_FIELDS + x] - field [y * H_FIELDS + x];
+ }
+ }
+ }
+}
+
+static int cy8mrln_palmpre_fini(struct tslib_module_info *info)
+{
+ struct tslib_cy8mrln_palmpre *i = container_of(info, struct tslib_cy8mrln_palmpre, module);
+ if (i->last_valid_samples != NULL) {
+ free (i->last_valid_samples);
+ }
+ free (i);
+#ifdef DEBUG
+ fprintf (stderr, "finishing cy8mrln_palmpre");
+#endif
return 0;
}
+static const struct tslib_vars cy8mrln_palmpre_vars[] =
+{
+ { "scanrate", NULL, parse_scanrate},
+ { "verbose", NULL, parse_verbose},
+ { "wot_scanrate", NULL, parse_wot_scanrate},
+ { "wot_threshold", NULL, parse_wot_threshold},
+ { "sleepmode", NULL, parse_sleepmode},
+ { "timestamp_mode", NULL, parse_timestamp_mode},
+ { "noise", NULL, parse_noise},
+ { "ts_pressure_mul", NULL, parse_ts_pressure_multiplicator}
+};
+
static const struct tslib_ops cy8mrln_palmpre_ops =
{
TSAPI struct tslib_module_info *cy8mrln_palmpre_mod_init(struct tsdev *dev, const char *params)
{
struct tslib_cy8mrln_palmpre *info;
- struct cy8mrln_palmpre_input input;
+ struct cy8mrln_palmpre_input input;
+ int ret = 0;
info = malloc(sizeof(struct tslib_cy8mrln_palmpre));
if(info == NULL)
return NULL;
info->module.ops = &cy8mrln_palmpre_ops;
-
- cy8mrln_palmpre_set_verbose(dev,verbose);
- cy8mrln_palmpre_set_scanrate(dev,scanrate);
- cy8mrln_palmpre_set_timestamp_mode(dev,timestamp_mode);
- cy8mrln_palmpre_set_sleepmode(dev,sleepmode);
- cy8mrln_palmpre_set_wot_scanrate(dev,wot_scanrate);
- cy8mrln_palmpre_set_wot_threshold(dev,wot_threshold);
-
- if (tslib_parse_vars(&info->module, raw_vars, NR_VARS, params)) {
+ info->last_valid_samples = NULL;
+ info->last_n_valid_samples = 0;
+
+ cy8mrln_palmpre_set_verbose(info, DEFAULT_VERBOSE);
+ cy8mrln_palmpre_set_scanrate(info, DEFAULT_SCANRATE);
+ cy8mrln_palmpre_set_timestamp_mode(info, DEFAULT_TIMESTAMP_MODE);
+ cy8mrln_palmpre_set_sleepmode(info, DEFAULT_SLEEPMODE);
+ cy8mrln_palmpre_set_wot_scanrate(info, DEFAULT_WOT_SCANRATE);
+ cy8mrln_palmpre_set_wot_threshold(info, DEFAULT_WOT_THRESHOLD);
+ cy8mrln_palmpre_set_noise(info, DEFAULT_NOISE);
+ cy8mrln_palmpre_set_ts_pressure_multiplicator(info, DEFAULT_TS_PRESSURE_MUL);
+
+ if (tslib_parse_vars(&info->module, cy8mrln_palmpre_vars, NR_VARS, params)) {
free(info);
return NULL;
}
- read(dev->fd, &input, sizeof(input));
-
- memcpy(info->nulls, input.values, 7*11*sizeof(uint16_t));
+ /* We need the intial values the touchscreen repots with no touch input for
+ * later use */
+ do {
+ ret = read(dev->fd, &input, sizeof(input));
+ }
+ while (ret <= 0);
+ memcpy(info->references, input.field, H_FIELDS * V_FIELDS * sizeof(uint16_t));
return &(info->module);
}
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