* tslib/plugins/cy8mrln-palmpre.c
*
* Copyright (C) 2010 Frederik Sdun <frederik.sdun@googlemail.com>
- * Thomas Zimmermann <ml@vdm-design.de>
- * Simon Busch <morphis@gravedo.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.
#define DEFAULT_SLEEPMODE CY8MRLN_ON_STATE
#define DEFAULT_WOT_SCANRATE WOT_SCANRATE_512HZ
#define DEFAULT_TIMESTAMP_MODE 1
-#define DEFAULT_TS_PRESSURE 255
+#define DEFAULT_TS_PRESSURE_MUL 4
#define DEFAULT_NOISE 25
#define container_of(ptr, type, member) ({ \
struct tslib_cy8mrln_palmpre
{
- 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;
- int noise;
- int last_n_valid_samples;
- struct ts_sample* last_valid_samples;
+ 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 cy8mrln_palmpre_set_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(struct tslib_cy8mrln_palmpre* info, int p);
+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_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(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], uint16_t references[H_FIELDS * V_FIELDS], int x, int y, struct ts_sample *out);
+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_noise (struct tslib_cy8mrln_palmpre* info, int n)
{
- if (info == NULL) {
- printf("TSLIB: cy8mrln_palmpre: ERROR: could not set noise value\n");
- return -1;
- }
- info->noise = n;
- return 0;
+ 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(struct tslib_cy8mrln_palmpre* info, int p)
+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 = p;
- return 0;
+ 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;
+ (void)data;
struct tslib_cy8mrln_palmpre *i = container_of(info, struct tslib_cy8mrln_palmpre, module);
unsigned long rate = strtoul(str, NULL, 0);
static int parse_verbose(struct tslib_module_info *info, char *str, void *data)
{
- (void)data;
+ (void)data;
struct tslib_cy8mrln_palmpre *i = container_of(info, struct tslib_cy8mrln_palmpre, module);
unsigned long v = strtoul(str, NULL, 0);
static int parse_wot_scanrate(struct tslib_module_info *info, char *str, void *data)
{
- (void)data;
+ (void)data;
struct tslib_cy8mrln_palmpre *i = container_of(info, struct tslib_cy8mrln_palmpre, module);
unsigned long rate = strtoul(str, NULL, 0);
static int parse_wot_threshold(struct tslib_module_info *info, char *str, void *data)
{
- (void)data;
+ (void)data;
struct tslib_cy8mrln_palmpre *i = container_of(info, struct tslib_cy8mrln_palmpre, module);
unsigned long threshold = strtoul(str, NULL, 0);
static int parse_sleepmode(struct tslib_module_info *info, char *str, void *data)
{
- (void)data;
+ (void)data;
struct tslib_cy8mrln_palmpre *i = container_of(info, struct tslib_cy8mrln_palmpre, module);
unsigned long sleep = strtoul(str, NULL, 0);
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);
}
static int parse_noise(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 noise = strtoul (str, NULL, 0);
+ unsigned long noise = strtoul (str, NULL, 0);
if(noise == ULONG_MAX && errno == ERANGE)
return -1;
- return cy8mrln_palmpre_set_noise (i, noise);
+ return cy8mrln_palmpre_set_noise (i, noise);
}
-static int parse_ts_pressure(struct tslib_module_info *info, char *str, void *data)
+static int parse_ts_pressure_multiplicator(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 tp = strtoul (str, NULL, 0);
+ unsigned long tp = strtoul (str, NULL, 0);
if(tp == ULONG_MAX && errno == ERANGE)
return -1;
- return cy8mrln_palmpre_set_ts_pressure (i, tp);
+ return cy8mrln_palmpre_set_ts_pressure_multiplicator (i, tp);
}
#define NR_VARS (sizeof(cy8mrln_palmpre_vars) / sizeof(cy8mrln_palmpre_vars[0]))
* f32
*/
-static void cy8mrln_palmpre_interpolate(uint16_t field[H_FIELDS * V_FIELDS], uint16_t references[H_FIELDS * V_FIELDS], int x, int y, struct ts_sample *out) {
+static void cy8mrln_palmpre_interpolate(uint16_t field[H_FIELDS * V_FIELDS], int x, int y, struct ts_sample *out)
+{
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;
- (void)references;
-
+
/* caluculate corrections for top, bottom, left and right fields */
- f12 = (y == 0) ? 0.0f : 0.5 * ((float)field[(y - 1) * H_FIELDS + x] / field[y * H_FIELDS + x]);
- f32 = (y == (V_FIELDS - 1)) ? 0.0f : 0.5 * (float)field[(y + 1) * H_FIELDS + x] / field[y * H_FIELDS + x];
- f21 = (x == (H_FIELDS - 1)) ? 0.0f : 0.5 * (float)field[y * H_FIELDS + x + 1] / field[y * H_FIELDS + x];
- f23 = (x == 0) ? 0.0f : 0.5 * (float) field[y * H_FIELDS + x - 1] / field[y * H_FIELDS + x];
+ 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;
+ /*
+ if (x == 0) {
+ posx = posx + dx / 2.0;
f21 = f21 * 2.0;
- } else if (x == (H_FIELDS - 1)) {
- posx = posx - dx / 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;
+ 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;
- }
+ } 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);
+ + (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);
+ + (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);
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
+ //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;
struct ts_sample *p = samp;
/* initalize all samples with proper values */
- memset(p, '\0', nr * sizeof (*p));
+ 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);
+ cy8mrln_palmpre_update_references (cy8mrln_info->references, cy8mrln_evt.field);
max_x = 0;
- max_y = 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, cy8mrln_info->references, max_x, max_y, &samp[valid_samples]);
- samp->pressure = cy8mrln_info->ts_pressure;
+ 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);
+ 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;
+ 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);
+ fprintf (stderr, "cy8mrln_palmpre: Returning %i old values with 0 pressure\n", valid_samples);
#endif
- }
- }
+ }
+ }
} else {
- return -1;
- }
+ 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];
- }
- }
- }
+ 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);
+ if (i->last_valid_samples != NULL) {
+ free (i->last_valid_samples);
+ }
+ free (i);
#ifdef DEBUG
- fprintf (stderr, "finishing cy8mrln_palmpre");
+ 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", NULL, parse_ts_pressure}
+ { "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}
};
if(info == NULL)
return NULL;
info->module.ops = &cy8mrln_palmpre_ops;
- info->last_valid_samples = NULL;
- info->last_n_valid_samples = 0;
+ 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_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(info, DEFAULT_TS_PRESSURE);
+ 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);
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