nyx: add option to use right joycon as mouse control

`jcforceright=1` in nyx.ini enables that feature.
Useful for users with broken touch screen and broken left joycon rail.

README.md

@@ -172,6 +172,7 @@ If the main .ini is not found, it is created on the first hekate boot and only h
 | verification=1     | 0: Disable Backup/Restore verification, 1: Sparse (block based, fast and mostly reliable), 2: Full (sha256 based, slow and 100% reliable). |
 | umsemmcrw=0        | 1: eMMC/emuMMC UMS will be mounted as writable by default. |
 | jcdisable=0        | 1: Disables Joycon driver completely.                      |
+| jcforceright=0     | 1: Forces right joycon to be used as main mouse control.   |
 | bpmpclock=1        | 0: Auto, 1: Faster, 2: Fast. Use 2 if Nyx hangs or some functions like UMS/Backup Verification fail. |
 
 

nyx/nyx_gui/config.c

@@ -52,6 +52,7 @@ void set_nyx_default_configuration()
 	n_cfg.verification = 1;
 	n_cfg.ums_emmc_rw = 0;
 	n_cfg.jc_disable = 0;
+	n_cfg.jc_force_right = 0;
 	n_cfg.bpmp_clock = 0;
 }
 
@@ -210,6 +211,9 @@ int create_nyx_config_entry(bool force_unmount)
 	f_puts("\njcdisable=", &fp);
 	itoa(n_cfg.jc_disable, lbuf, 10);
 	f_puts(lbuf, &fp);
+	f_puts("\njcforceright=", &fp);
+	itoa(n_cfg.jc_force_right, lbuf, 10);
+	f_puts(lbuf, &fp);
 	f_puts("\nbpmpclock=", &fp);
 	itoa(n_cfg.bpmp_clock, lbuf, 10);
 	f_puts(lbuf, &fp);

nyx/nyx_gui/config.h

@@ -48,6 +48,7 @@ typedef struct _nyx_config
 	u32 verification;
 	u32 ums_emmc_rw;
 	u32 jc_disable;
+	u32 jc_force_right;
 	u32 bpmp_clock;
 } nyx_config;
 

nyx/nyx_gui/frontend/gui.c

@@ -394,9 +394,23 @@ static bool _jc_virt_mouse_read(lv_indev_data_t *data)
 	// Calibrate left stick.
 	if (!jc_drv_ctx.centering_done)
 	{
-		if (jc_pad->conn_l
+		if (n_cfg.jc_force_right)
-			&& jc_pad->lstick_x > 0x400 && jc_pad->lstick_y > 0x400
+		{
-			&& jc_pad->lstick_x < 0xC00 && jc_pad->lstick_y < 0xC00)
+			if (jc_pad->conn_r
+				&& jc_pad->rstick_x > 0x400 && jc_pad->rstick_y > 0x400
+				&& jc_pad->rstick_x < 0xC00 && jc_pad->rstick_y < 0xC00)
+			{
+				jc_drv_ctx.cx_max = jc_pad->rstick_x + 0x96;
+				jc_drv_ctx.cx_min = jc_pad->rstick_x - 0x96;
+				jc_drv_ctx.cy_max = jc_pad->rstick_y + 0x96;
+				jc_drv_ctx.cy_min = jc_pad->rstick_y - 0x96;
+				jc_drv_ctx.centering_done = true;
+				jc_drv_ctx.cursor_timeout = 0;
+			}
+		}
+		else if (jc_pad->conn_l
+			     && jc_pad->lstick_x > 0x400 && jc_pad->lstick_y > 0x400
+			     && jc_pad->lstick_x < 0xC00 && jc_pad->lstick_y < 0xC00)
 		{
 			jc_drv_ctx.cx_max = jc_pad->lstick_x + 0x96;
 			jc_drv_ctx.cx_min = jc_pad->lstick_x - 0x96;
@@ -413,7 +427,12 @@ static bool _jc_virt_mouse_read(lv_indev_data_t *data)
 	}
 
 	// Re-calibrate on disconnection.
-	if (!jc_pad->conn_l)
+	if (n_cfg.jc_force_right)
+	{
+		if (!jc_pad->conn_r)
+			jc_drv_ctx.centering_done = 0;
+	}
+	else if (!jc_pad->conn_l)
 		jc_drv_ctx.centering_done = 0;
 
 	// Set button presses.
@@ -466,19 +485,38 @@ static bool _jc_virt_mouse_read(lv_indev_data_t *data)
 	}
 
 	// Calculate new cursor position.
-	if (jc_pad->lstick_x <= jc_drv_ctx.cx_max && jc_pad->lstick_x >= jc_drv_ctx.cx_min)
+	if (!n_cfg.jc_force_right)
-		jc_drv_ctx.pos_x += 0;
+	{
-	else if (jc_pad->lstick_x > jc_drv_ctx.cx_max)
+		if (jc_pad->lstick_x <= jc_drv_ctx.cx_max && jc_pad->lstick_x >= jc_drv_ctx.cx_min)
-		jc_drv_ctx.pos_x += ((jc_pad->lstick_x - jc_drv_ctx.cx_max) / 30);
+			jc_drv_ctx.pos_x += 0;
-	else
+		else if (jc_pad->lstick_x > jc_drv_ctx.cx_max)
-		jc_drv_ctx.pos_x -= ((jc_drv_ctx.cx_min - jc_pad->lstick_x) / 30);
+			jc_drv_ctx.pos_x += ((jc_pad->lstick_x - jc_drv_ctx.cx_max) / 30);
+		else
+			jc_drv_ctx.pos_x -= ((jc_drv_ctx.cx_min - jc_pad->lstick_x) / 30);
 
-	if (jc_pad->lstick_y <= jc_drv_ctx.cy_max && jc_pad->lstick_y >= jc_drv_ctx.cy_min)
+		if (jc_pad->lstick_y <= jc_drv_ctx.cy_max && jc_pad->lstick_y >= jc_drv_ctx.cy_min)
-		jc_drv_ctx.pos_y += 0;
+			jc_drv_ctx.pos_y += 0;
-	else if (jc_pad->lstick_y > jc_drv_ctx.cy_max)
+		else if (jc_pad->lstick_y > jc_drv_ctx.cy_max)
-		jc_drv_ctx.pos_y -= ((jc_pad->lstick_y - jc_drv_ctx.cy_max) / 30);
+			jc_drv_ctx.pos_y -= ((jc_pad->lstick_y - jc_drv_ctx.cy_max) / 30);
+		else
+			jc_drv_ctx.pos_y += ((jc_drv_ctx.cy_min - jc_pad->lstick_y) / 30);
+	}
 	else
-		jc_drv_ctx.pos_y += ((jc_drv_ctx.cy_min - jc_pad->lstick_y) / 30);
+	{
+		if (jc_pad->rstick_x <= jc_drv_ctx.cx_max && jc_pad->rstick_x >= jc_drv_ctx.cx_min)
+			jc_drv_ctx.pos_x += 0;
+		else if (jc_pad->rstick_x > jc_drv_ctx.cx_max)
+			jc_drv_ctx.pos_x += ((jc_pad->rstick_x - jc_drv_ctx.cx_max) / 30);
+		else
+			jc_drv_ctx.pos_x -= ((jc_drv_ctx.cx_min - jc_pad->rstick_x) / 30);
+
+		if (jc_pad->rstick_y <= jc_drv_ctx.cy_max && jc_pad->rstick_y >= jc_drv_ctx.cy_min)
+			jc_drv_ctx.pos_y += 0;
+		else if (jc_pad->rstick_y > jc_drv_ctx.cy_max)
+			jc_drv_ctx.pos_y -= ((jc_pad->rstick_y - jc_drv_ctx.cy_max) / 30);
+		else
+			jc_drv_ctx.pos_y += ((jc_drv_ctx.cy_min - jc_pad->rstick_y) / 30);
+	}
 
 	// Ensure value inside screen limits.
 	if (jc_drv_ctx.pos_x < 0)

nyx/nyx_gui/nyx.c

@@ -271,6 +271,8 @@ skip_main_cfg_parse:
 					n_cfg.ums_emmc_rw = atoi(kv->val) == 1;
 				else if (!strcmp("jcdisable", kv->key))
 					n_cfg.jc_disable = atoi(kv->val) == 1;
+				else if (!strcmp("jcforceright", kv->key))
+					n_cfg.jc_force_right = atoi(kv->val) == 1;
 				else if (!strcmp("bpmpclock", kv->key))
 					n_cfg.bpmp_clock = strtol(kv->val, NULL, 10);
 			}