Allow choosing fbdev and evdev names, load POSIX settings from config

src/dev/posix/hasp_posix.cpp

@@ -23,6 +23,7 @@
 #include "display/monitor.h"
 #elif USE_FBDEV
 #include "display/fbdev.h"
+#include "drv/tft/tft_driver.h"
 #endif
 
 #include <fstream>
@@ -54,6 +55,32 @@ PosixDevice::PosixDevice()
     _backlight_level  = 255;
 }
 
+void PosixDevice::set_config(const JsonObject& settings)
+{
+    configOutput(settings, 0);
+#if USE_FBDEV
+    if(settings["fbdev"].is<std::string>()) {
+        haspTft.fbdev_path = "/dev/" + settings["fbdev"].as<std::string>();
+    }
+#if USE_EVDEV
+    if(settings["evdev"].is<std::string>()) {
+        haspTft.evdev_names.push_back(settings["evdev"].as<std::string>());
+    }
+    if(settings["evdevs"].is<JsonArray>()) {
+        for(auto v : settings["evdevs"].as<JsonArray>()) {
+            haspTft.evdev_names.push_back(v.as<std::string>());
+        }
+    }
+#endif
+    if(settings["bldev"].is<std::string>()) {
+        haspDevice.backlight_device = settings["bldev"].as<std::string>();
+    }
+    if(settings["blmax"].is<int>()) {
+        haspDevice.backlight_max = settings["blmax"];
+    }
+#endif
+}
+
 void PosixDevice::reboot()
 {}
 void PosixDevice::show_info()

src/dev/posix/hasp_posix.h

@@ -31,6 +31,8 @@ class PosixDevice : public BaseDevice {
   public:
     PosixDevice();
 
+    void set_config(const JsonObject& settings);
+
     void reboot() override;
     void show_info() override;
 

src/drv/tft/tft_driver_posix_fbdev.cpp

@@ -28,6 +28,7 @@
 #include <unistd.h>
 #include <dirent.h>
 #include <fcntl.h>
+#include <algorithm>
 
 #if USE_BSD_EVDEV
 #include <dev/evdev/input.h>
@@ -83,7 +84,7 @@ void TftFbdevDrv::init(int32_t w, int h)
     /* Add a display
      * Use the 'fbdev' driver which uses POSIX framebuffer device as a display
      * The following input devices are handled: mouse, keyboard, mousewheel */
-    fbdev_init();
+    fbdev_init(fbdev_path.empty() ? NULL : fbdev_path.c_str());
     fbdev_get_sizes((uint32_t*)&_width, (uint32_t*)&_height);
 
     // show the splashscreen early
@@ -104,6 +105,10 @@ void TftFbdevDrv::init(int32_t w, int h)
             // make sure it's a block device matching /dev/input/event*
             if(strncmp(dirent->d_name, "event", 5) != 0 || strlen(dirent->d_name) <= 5) continue;
             if(dirent->d_type != DT_CHR) continue;
+            // skip device if not specified on command line
+            if(!evdev_names.empty() &&
+               std::find(evdev_names.begin(), evdev_names.end(), std::string(dirent->d_name)) == evdev_names.end())
+                continue;
             // get full path
             char dev_path[64];
             strcpy(dev_path, "/dev/input/");

src/drv/tft/tft_driver_posix_fbdev.h

@@ -11,6 +11,8 @@
 
 #include "lvgl.h"
 
+#include <vector>
+
 namespace dev {
 
 class TftFbdevDrv : BaseTft {
@@ -30,6 +32,10 @@ class TftFbdevDrv : BaseTft {
     int32_t width();
     int32_t height();
 
+  public:
+    std::string fbdev_path;
+    std::vector<std::string> evdev_names;
+
   private:
     int32_t _width, _height;
 };

src/hasp_config.cpp

@@ -636,6 +636,12 @@ void configSetup()
         gpioSetConfig(settings[FPSTR(FP_GPIO)]);
 #endif
 
+        // target-specific config
+#if defined(POSIX)
+        LOG_INFO(TAG_CONF, F("Loading POSIX-specific settings"));
+        haspDevice.set_config(settings[F("posix")]);
+#endif
+
         LOG_INFO(TAG_CONF, F(D_CONFIG_LOADED));
     }
     // #endif

src/main_pc.cpp

@@ -112,17 +112,15 @@ void usage(const char* progName, const char* version)
               << std::endl
               << "Options:" << std::endl
               << "    -h  | --help        Print this help" << std::endl
+#if !USE_FBDEV
               << "    -W  | --width       Width of the window" << std::endl
               << "    -H  | --height      Height of the window" << std::endl
-              << "    -C  | --config      Configuration directory" << std::endl
+#endif
+              << "    -c  | --config      Configuration/storage directory" << std::endl
 #if defined(WINDOWS)
               << "                        (default: 'AppData\\hasp\\hasp')" << std::endl
 #elif defined(POSIX)
               << "                        (default: '~/.local/share/hasp/hasp')" << std::endl
-#endif
-#if USE_FBDEV && defined(POSIX)
-              << "    -b  | --backlight   Backlight device name (in /sys/class/backlight/)" << std::endl
-              << "    -B  | --bl-max      Backlight brightness limit (default: max_brightness)" << std::endl
 #endif
               << std::endl;
     fflush(stdout);
@@ -142,25 +140,7 @@ int main(int argc, char* argv[])
     for(int arg = 1; arg < argc; arg++) {
         if(strncmp(argv[arg], "--help", 6) == 0 || strncmp(argv[arg], "-h", 2) == 0) {
             showhelp = true;
-#if USE_FBDEV && defined(POSIX)
+#if !USE_FBDEV
-        } else if(strncmp(argv[arg], "--backlight", 11) == 0 || strncmp(argv[arg], "-b", 2) == 0) {
-            if(arg + 1 < argc) {
-                haspDevice.backlight_device = argv[arg + 1];
-                arg++;
-            } else {
-                std::cout << "Missing device name" << std::endl;
-                showhelp = true;
-            }
-        } else if(strncmp(argv[arg], "--bl-max", 9) == 0 || strncmp(argv[arg], "-B", 2) == 0) {
-            if(arg + 1 < argc) {
-                int bl_max = atoi(argv[arg + 1]);
-                if(bl_max > 0) haspDevice.backlight_max = bl_max;
-                arg++;
-            } else {
-                std::cout << "Missing backlight level" << std::endl;
-                showhelp = true;
-            }
-#endif
         } else if(strncmp(argv[arg], "--width", 7) == 0 || strncmp(argv[arg], "-W", 2) == 0) {
             if(arg + 1 < argc) {
                 int w = atoi(argv[arg + 1]);
@@ -179,7 +159,8 @@ int main(int argc, char* argv[])
                 std::cout << "Missing height value" << std::endl;
                 showhelp = true;
             }
-        } else if(strncmp(argv[arg], "--config", 8) == 0 || strncmp(argv[arg], "-C", 2) == 0) {
+#endif
+        } else if(strncmp(argv[arg], "--config", 8) == 0 || strncmp(argv[arg], "-c", 2) == 0) {
             if(arg + 1 < argc) {
                 strcpy(config, argv[arg + 1]);
                 arg++;