Merge pull request #6047 from pattheaux/overlay_led

Added an overlay led driver, fixed a bug in the rpi led driver

Makefile.common

@@ -200,6 +200,7 @@ OBJ += frontend/frontend.o \
        input/input_driver.o \
        led/led_driver.o \
        led/null_led_driver.o \
+       led/overlay_led_driver.o \
        gfx/video_coord_array.o \
        gfx/video_display_server.o \
        gfx/video_driver.o \

configuration.c

@@ -2508,6 +2508,7 @@ static bool config_load_file(const char *path, bool set_defaults,
       buf[0] = '\0';
 
       snprintf(buf, sizeof(buf), "led%u_map", i + 1);
+      settings->uints.led_map[i]=-1;
       CONFIG_GET_INT_BASE(conf, settings, uints.led_map[i], buf);
    }
 

input/input_overlay.c

@@ -37,6 +37,9 @@
 #define OVERLAY_GET_KEY(state, key) (((state)->keys[(key) / 32] >> ((key) % 32)) & 1)
 #define OVERLAY_SET_KEY(state, key) (state)->keys[(key) / 32] |= 1 << ((key) % 32)
 
+#define MAX_VISIBILITY 32
+static enum overlay_visibility* visibility = NULL;
+
 typedef struct input_overlay_state
 {
    /* Left X, Left Y, Right X, Right Y */
@@ -528,6 +531,39 @@ abort_load:
    free(data);
 }
 
+void input_overlay_set_visibility(int overlay_idx,enum overlay_visibility vis)
+{
+    int i;
+    input_overlay_t *ol = overlay_ptr;
+      
+    if(visibility == NULL)
+    {
+        visibility = (enum overlay_visibility *)calloc(MAX_VISIBILITY,sizeof(enum overlay_visibility));
+        for(i=0;i<MAX_VISIBILITY;i++)
+        {
+            visibility[i] = OVERLAY_VISIBILITY_DEFAULT;
+        }
+    }
+
+    visibility[overlay_idx] = vis;
+
+    if(ol == NULL) return;
+    if(vis == OVERLAY_VISIBILITY_HIDDEN)
+      ol->iface->set_alpha(ol->iface_data, overlay_idx, 0.0);
+}
+
+static enum overlay_visibility input_overlay_get_visibility(int overlay_idx)
+{
+    if(visibility == NULL) return OVERLAY_VISIBILITY_DEFAULT;
+    if((overlay_idx < 0) || (overlay_idx >= MAX_VISIBILITY)) return OVERLAY_VISIBILITY_DEFAULT;
+    return visibility[overlay_idx];
+}
+
+static bool input_overlay_is_hidden(int overlay_idx)
+{
+    return (input_overlay_get_visibility(overlay_idx) == OVERLAY_VISIBILITY_HIDDEN);
+}
+
 /**
  * input_overlay_set_alpha_mod:
  * @ol                    : Overlay handle.
@@ -544,8 +580,13 @@ void input_overlay_set_alpha_mod(input_overlay_t *ol, float mod)
       return;
 
    for (i = 0; i < ol->active->load_images_size; i++)
+   {
+      if(input_overlay_is_hidden(i))
+          ol->iface->set_alpha(ol->iface_data, i, 0.0);
+      else
           ol->iface->set_alpha(ol->iface_data, i, mod);
    }
+}
 
 bool input_overlay_is_alive(input_overlay_t *ol)
 {

input/input_overlay.h

@@ -94,6 +94,13 @@ enum overlay_image_transfer_status
    OVERLAY_IMAGE_TRANSFER_ERROR
 };
 
+enum overlay_visibility
+{
+   OVERLAY_VISIBILITY_DEFAULT = 0,
+   OVERLAY_VISIBILITY_VISIBLE,
+   OVERLAY_VISIBILITY_HIDDEN
+};
+
 struct overlay
 {
    bool full_screen;
@@ -257,6 +264,8 @@ bool input_overlay_is_alive(input_overlay_t *ol);
 
 void input_overlay_loaded(void *task_data, void *user_data, const char *err);
 
+void input_overlay_set_visibility(int overlay_idx,enum overlay_visibility vis);
+
 /* FIXME - temporary. Globals are bad */
 extern input_overlay_t *overlay_ptr;
 

led/led_driver.c

@@ -20,6 +20,11 @@
 #include "../verbosity.h"
 
 static led_driver_t *current_led_driver = NULL;
+extern led_driver_t *null_led_driver;
+extern led_driver_t *overlay_led_driver;
+#if HAVE_RPILED
+extern led_driver_t *rpi_led_driver;
+#endif
 
 bool led_driver_init(void)
 {
@@ -31,10 +36,16 @@ bool led_driver_init(void)
 
    current_led_driver = null_led_driver;
 
+   if(string_is_equal("overlay",drivername))
+      current_led_driver = overlay_led_driver;
 #if HAVE_RPILED
-   if(string_is_equal("rpi", drivername))
+   else if(string_is_equal("rpi", drivername))
       current_led_driver = rpi_led_driver;
 #endif          
+   else
+   {
+      current_led_driver = null_led_driver;
+   }
 
    RARCH_LOG("[LED]: LED driver = '%s' %p\n",
          drivername,current_led_driver);

led/overlay_led_driver.c

@@ -0,0 +1,59 @@
+#include <stdio.h>
+#include "led_driver.h"
+#include "led_defines.h"
+
+#include "configuration.h"
+#include "verbosity.h"
+
+#include "../gfx/video_driver.h"
+#include "../input/input_overlay.h"
+
+typedef struct
+{
+    int setup[MAX_LEDS];
+    int map[MAX_LEDS];
+} overlayled_t;
+
+static overlayled_t curins;
+static overlayled_t *cur = &curins;
+
+static void overlay_init(void)
+{
+    int i;
+    settings_t *settings = config_get_ptr();
+    RARCH_LOG("[LED]: overlay LED driver init\n");
+    for(i=0;i<MAX_LEDS;i++) {
+        cur->setup[i] = 0;
+        cur->map[i] = settings->uints.led_map[i];
+        RARCH_LOG("[LED]: overlay map[%d]=%d\n",i,cur->map[i]);
+
+        if(cur->map[i] >= 0)
+        {
+            input_overlay_set_visibility(cur->map[i],OVERLAY_VISIBILITY_HIDDEN);
+        }
+    }
+}
+
+static void overlay_free(void)
+{
+    RARCH_LOG("[LED]: overlay LED driver free\n");
+}
+
+static void overlay_set(int led,int state)
+{
+    int gpio = 0;
+    if((led < 0) || (led >= MAX_LEDS))
+    {
+        RARCH_WARN("[LED]: invalid led %d\n",led);
+        return;
+    }
+
+    gpio = cur->map[led];
+
+    if(gpio < 0) return;
+    input_overlay_set_visibility(gpio,state?OVERLAY_VISIBILITY_VISIBLE:OVERLAY_VISIBILITY_HIDDEN);
+    RARCH_LOG("[LED]: set visibility %d %d\n",gpio,state);
+}
+
+static led_driver_t overlay_led_driver_ins = { overlay_init, overlay_free, overlay_set };
+led_driver_t *overlay_led_driver = &overlay_led_driver_ins;

led/rpi_led_driver.c

@@ -53,7 +53,7 @@ static int set_gpio(int gpio,int value)
 {
    FILE *fp;
    char buf[256];
-   snprintf(buf, sizeof(buf), "/sys/class/gpio/%d/value", gpio);
+   snprintf(buf, sizeof(buf), "/sys/class/gpio/gpio%d/value", gpio);
    fp = fopen(buf,"w");
 
    if(!fp)
@@ -71,7 +71,7 @@ static int setup_gpio(int gpio)
 {
    FILE *fp;
    char buf[256];
-   snprintf(buf, sizeof(buf), "/sys/class/gpio/%d/direction", gpio);
+   snprintf(buf, sizeof(buf), "/sys/class/gpio/gpio%d/direction", gpio);
    fp = fopen(buf,"w");
 
    if(!fp)
@@ -88,7 +88,7 @@ static int setup_gpio(int gpio)
       fprintf(fp,"%d\n",gpio);
       fclose(fp);
 
-      snprintf(buf, sizeof(buf), "/sys/class/gpio/%d/direction",gpio);
+      snprintf(buf, sizeof(buf), "/sys/class/gpio/gpio%d/direction",gpio);
       fp = fopen(buf,"w");    
    }
 
@@ -102,8 +102,8 @@ static int setup_gpio(int gpio)
    fprintf(fp,"out\n");
    fclose(fp);
    return 1;
-
 }
+
 static void rpi_set(int led,int state)
 {
    int gpio = 0;