frontend: add touchscreen-as-buttons input code

intended for Caanoo/Wiz

diff --git a/Makefile b/Makefile
index 32e5401..22f6652 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -131,7 +131,7 @@ OBJS += frontend/plat_omap.o
 OBJS += frontend/plat_pandora.o
 else
 ifeq "$(PLATFORM)" "caanoo"
-OBJS += frontend/plat_pollux.o frontend/blit320.o
+OBJS += frontend/plat_pollux.o frontend/in_tsbutton.o frontend/blit320.o
 OBJS += frontend/warm/warm.o
 else
 OBJS += frontend/plat_dummy.o

diff --git a/frontend/in_tsbutton.c b/frontend/in_tsbutton.c
new file mode 100644 (file)
index 0000000..4e2cef0
--- /dev/null
+++ b/frontend/in_tsbutton.c
@@ -0,0 +1,147 @@
+/*
+ * (C) Gražvydas "notaz" Ignotas, 2011
+ *
+ * This work is licensed under the terms of any of these licenses
+ * (at your option):
+ *  - GNU GPL, version 2 or later.
+ *  - GNU LGPL, version 2.1 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include <stdio.h>
+#include <tslib.h>
+
+#include "common/input.h"
+#include "in_tsbutton.h"
+
+#define IN_TSBUTTON_PREFIX "tsbutton:"
+#define IN_TSBUTTON_COUNT 4
+static int tsbutton_down_id;
+static int last_tsbutton_id;
+
+#define TS_WIDTH 320
+#define TS_HEIGHT 240
+
+// HACK: stealing this from plugin_lib
+extern void *tsdev;
+extern int (*pts_read)(struct tsdev *dev, struct ts_sample *sample, int nr);
+extern int (*pts_fd)(struct tsdev *dev);
+
+static const char * const in_tsbutton_keys[IN_TSBUTTON_COUNT] = {
+       "TS1", "TS2", "TS3", "TS4",
+};
+
+static void in_tsbutton_probe(void)
+{
+       struct tsdev *dev = tsdev;
+       if (dev == NULL) {
+               fprintf(stderr, "in_tsbutton_probe: missing tsdev\n");
+               return;
+       }
+
+       in_register(IN_TSBUTTON_PREFIX "touchscreen as buttons",
+               pts_fd(dev), NULL, IN_TSBUTTON_COUNT, in_tsbutton_keys, 0);
+}
+
+static const char * const *
+in_tsbutton_get_key_names(int *count)
+{
+       *count = IN_TSBUTTON_COUNT;
+       return in_tsbutton_keys;
+}
+
+static int update_button(void)
+{
+       struct tsdev *dev = tsdev;
+       struct ts_sample sample;
+       int sx = 0, sy = 0, sp = 0, updated = 0;
+
+       if (dev == NULL)
+               return -1;
+
+       while (pts_read(dev, &sample, 1) > 0) {
+               sx = sample.x;
+               sy = sample.y;
+               sp = sample.pressure;
+               updated = 1;
+       }
+
+       if (updated) {
+               if (sp == 0)
+                       tsbutton_down_id = -1;
+               else {
+                       // 0 1
+                       // 2 3
+                       tsbutton_down_id = 0;
+                       if (sx > TS_WIDTH / 2)
+                               tsbutton_down_id++;
+                       if (sy > TS_HEIGHT / 2)
+                               tsbutton_down_id += 2;
+               }
+       }
+
+       return 0;
+}
+
+static int in_tsbutton_update(void *drv_data, const int *binds, int *result)
+{
+       int ret, t;
+       
+       ret = update_button();
+       if (ret != 0)
+               return ret;
+
+       if (tsbutton_down_id >= 0)
+               for (t = 0; t < IN_BINDTYPE_COUNT; t++)
+                       result[t] |= binds[IN_BIND_OFFS(tsbutton_down_id, t)];
+
+       return 0;
+}
+
+static int in_tsbutton_update_keycode(void *data, int *is_down)
+{
+       int ret, ret_kc = -1, ret_down = 0;
+
+       ret = update_button();
+       if (ret != 0)
+               return ret;
+
+       if (tsbutton_down_id == last_tsbutton_id)
+               return -1;
+
+       if (tsbutton_down_id >= 0) {
+               if (last_tsbutton_id >= 0) {
+                       ret_kc = last_tsbutton_id;
+                       last_tsbutton_id = -1;
+               }
+               else {
+                       ret_down = 1;
+                       ret_kc = tsbutton_down_id;
+                       last_tsbutton_id = tsbutton_down_id;
+               }
+       }
+       else {
+               ret_kc = last_tsbutton_id;
+               last_tsbutton_id = -1;
+       }
+
+       if (is_down != NULL)
+               *is_down = ret_down;
+
+       return ret_kc;
+}
+
+static const in_drv_t in_tsbutton_drv = {
+       .prefix         = IN_TSBUTTON_PREFIX,
+       .probe          = in_tsbutton_probe,
+       .get_key_names  = in_tsbutton_get_key_names,
+       .update         = in_tsbutton_update,
+       .update_keycode = in_tsbutton_update_keycode,
+};
+
+void in_tsbutton_init(void)
+{
+       tsbutton_down_id = last_tsbutton_id = -1;
+       in_register_driver(&in_tsbutton_drv);
+}
+

diff --git a/frontend/in_tsbutton.h b/frontend/in_tsbutton.h
new file mode 100644 (file)
index 0000000..82fab29
--- /dev/null
+++ b/frontend/in_tsbutton.h
@@ -0,0 +1 @@
+void in_tsbutton_init(void);

diff --git a/frontend/main.c b/frontend/main.c
index 70355dd..bf5f35f 100644 (file)
--- a/frontend/main.c
+++ b/frontend/main.c
@@ -319,6 +319,7 @@ int main(int argc, char *argv[])
        plat_init();
        menu_init(); // loads config
        pl_init();
+       plat_rescan_inputs();
 
        if (psxout)
                Config.PsxOut = 1;

diff --git a/frontend/pl_gun_ts.c b/frontend/pl_gun_ts.c
index fbf25e3..2c02251 100644 (file)
--- a/frontend/pl_gun_ts.c
+++ b/frontend/pl_gun_ts.c
@@ -19,7 +19,8 @@
 
 static int gun_x, gun_y, gun_in;
 static int ts_multiplier_x, ts_multiplier_y, ts_offs_x, ts_offs_y;
-static int (*pts_read)(struct tsdev *dev, struct ts_sample *sample, int nr);
+int (*pts_read)(struct tsdev *dev, struct ts_sample *sample, int nr);
+int (*pts_fd)(struct tsdev *dev);
 
 #define limit(v, min, max) \
        if (v < min) v = min; \
@@ -77,9 +78,9 @@ struct tsdev *pl_gun_ts_init(void)
                tsdevname = "/dev/input/touchscreen0";
 
        // avoid hard dep on tslib
-       ltsh = dlopen("/usr/lib/libts-1.0.so.0", RTLD_LAZY);
+       ltsh = dlopen("/usr/lib/libts-1.0.so.0", RTLD_NOW|RTLD_GLOBAL);
        if (ltsh == NULL)
-               ltsh = dlopen("/usr/lib/libts-0.0.so.0", RTLD_LAZY);
+               ltsh = dlopen("/usr/lib/libts-0.0.so.0", RTLD_NOW|RTLD_GLOBAL);
        if (ltsh == NULL) {
                fprintf(stderr, "%s\n", dlerror());
                goto fail;
@@ -88,8 +89,10 @@ struct tsdev *pl_gun_ts_init(void)
        pts_open = dlsym(ltsh, "ts_open");
        pts_config = dlsym(ltsh, "ts_config");
        pts_read = dlsym(ltsh, "ts_read");
+       pts_fd = dlsym(ltsh, "ts_fd");
        pts_close = dlsym(ltsh, "ts_close");
-       if (pts_open == NULL || pts_config == NULL || pts_read == NULL || pts_close == NULL) {
+       if (pts_open == NULL || pts_config == NULL || pts_read == NULL
+           || pts_fd == NULL || pts_close == NULL) {
                fprintf(stderr, "%s\n", dlerror());
                goto fail_dlsym;
        }

diff --git a/frontend/plat_omap.c b/frontend/plat_omap.c
index 65478cb..c9f576b 100644 (file)
--- a/frontend/plat_omap.c
+++ b/frontend/plat_omap.c
@@ -173,9 +173,6 @@ void plat_init(void)
        }
        g_menubg_ptr = temp_frame;
 
-       // hmh
-       plat_rescan_inputs();
-
        return;
 
 fail1:

diff --git a/frontend/plat_pollux.c b/frontend/plat_pollux.c
index 21e06f0..b237110 100644 (file)
--- a/frontend/plat_pollux.c
+++ b/frontend/plat_pollux.c
@@ -22,6 +22,7 @@
 #include "plugin_lib.h"
 #include "cspace.h"
 #include "blit320.h"
+#include "in_tsbutton.h"
 #include "main.h"
 #include "menu.h"
 #include "plat.h"
@@ -555,9 +556,6 @@ void plat_init(void)
        if (battdev < 0)
                perror("Warning: could't open pollux_batt");
 
-       // hmh
-       plat_rescan_inputs();
-
        pl_rearmed_cbs.pl_vout_flip = pl_vout_flip;
        pl_rearmed_cbs.pl_vout_raw_flip = have_warm ? raw_flip_dma : raw_flip_soft;
        pl_rearmed_cbs.pl_vout_set_mode = pl_vout_set_mode;
@@ -566,6 +564,8 @@ void plat_init(void)
        psx_width = 320;
        psx_height = 240;
        psx_bpp = 16;
+
+       in_tsbutton_init();
 }
 
 void plat_finish(void)

diff --git a/frontend/plugin_lib.c b/frontend/plugin_lib.c
index 084ff1e..0e69743 100644 (file)
--- a/frontend/plugin_lib.c
+++ b/frontend/plugin_lib.c
@@ -33,7 +33,7 @@ int in_type1, in_type2;
 int in_a1[2] = { 127, 127 }, in_a2[2] = { 127, 127 };
 int in_keystate, in_state_gun;
 int pl_flip_cnt;
-static void *ts;
+void *tsdev;
 void *pl_vout_buf;
 static int pl_vout_w, pl_vout_h, pl_vout_bpp;
 static int vsync_cnt, flips_per_sec, tick_per_sec;
@@ -248,8 +248,8 @@ static void update_input(void)
 
 void pl_update_gun(int *xn, int *xres, int *y, int *in)
 {
-       if (ts)
-               pl_gun_ts_update(ts, xn, y, in);
+       if (tsdev)
+               pl_gun_ts_update(tsdev, xn, y, in);
 
        *xres = pl_vout_w;
        *y = *y * pl_vout_h >> 10;
@@ -473,5 +473,5 @@ void pl_init(void)
        pl_vout_w = pl_vout_h = 256;
        pl_vout_bpp = 16;
 
-       ts = pl_gun_ts_init();
+       tsdev = pl_gun_ts_init();
 }