nyx: Allow disabling of Joycon

Setting `jcdisable=1` in nyx.ini disables the usage of Joycon completely.

This also disables the BT pairing data dumping tool.

README.md

@@ -68,7 +68,8 @@ You can find a template [Here](./res/hekate_ipl_template.ini)
 | timeoff=100        | Sets time offset in HEX. Must be in HOS epoch format       |
 | homescreen=0       | Sets home screen. 0: Home menu, 1: All configs (merges Launch and More configs), 2: Launch, 3: More Configs. |
 | verification=1     | 0: Disable Backup/Restore verification, 1: Sparse (block based, fast and mostly reliable), 2: Full (sha256 based, slow and 100% reliable). |
-| umsemmcrw=1        | 1: eMMC/emuMMC UMS will be mounted as writable by default. |
+| umsemmcrw=0        | 1: eMMC/emuMMC UMS will be mounted as writable by default. |
+| jcdisable=0        | 1: Disables Joycon driver completely.                      |
 
 
 ### Boot entry key/value combinations:

bdk/input/joycon.c

@@ -523,6 +523,9 @@ jc_gamepad_rpt_t *jc_get_bt_pairing_info(bool *is_l_hos, bool *is_r_hos)
 	u8 retries;
 	jc_bt_conn_t *bt_conn;
 
+	if (!jc_init_done)
+		return NULL;
+
 	bt_conn = &jc_gamepad.bt_conn_l;
 	memset(bt_conn->host_mac, 0, 6);
 	memset(bt_conn->ltk, 0, 16);

nyx/nyx_gui/config.c

@@ -60,6 +60,7 @@ void set_nyx_default_configuration()
 	n_cfg.home_screen = 0;
 	n_cfg.verification = 1;
 	n_cfg.ums_emmc_rw = 0;
+	n_cfg.jc_disable = 0;
 }
 
 int create_config_entry()
@@ -198,6 +199,9 @@ int create_nyx_config_entry()
 	f_puts("\numsemmcrw=", &fp);
 	itoa(n_cfg.ums_emmc_rw, lbuf, 10);
 	f_puts(lbuf, &fp);
+	f_puts("\njcdisable=", &fp);
+	itoa(n_cfg.jc_disable, lbuf, 10);
+	f_puts(lbuf, &fp);
 	f_puts("\n", &fp);
 
 	f_close(&fp);

nyx/nyx_gui/config.h

@@ -48,6 +48,7 @@ typedef struct _nyx_config
 	u32 home_screen;
 	u32 verification;
 	u32 ums_emmc_rw;
+	u32 jc_disable;
 } nyx_config;
 
 void set_default_configuration();

nyx/nyx_gui/frontend/gui.c

@@ -2234,8 +2234,11 @@ void nyx_load_and_run()
 	lv_disp_drv_register(&disp_drv);
 
 	// Initialize Joy-Con.
-	lv_task_t *task_jc_init_hw = lv_task_create(jc_init_hw, LV_TASK_ONESHOT, LV_TASK_PRIO_LOWEST, NULL);
-	lv_task_once(task_jc_init_hw);
+	if (!n_cfg.jc_disable)
+	{
+		lv_task_t *task_jc_init_hw = lv_task_create(jc_init_hw, LV_TASK_ONESHOT, LV_TASK_PRIO_LOWEST, NULL);
+		lv_task_once(task_jc_init_hw);
+	}
 	lv_indev_drv_t indev_drv_jc;
 	lv_indev_drv_init(&indev_drv_jc);
 	indev_drv_jc.type = LV_INDEV_TYPE_POINTER;

nyx/nyx_gui/frontend/gui_options.c

@@ -740,10 +740,20 @@ void first_time_clock_edit(void *param)
 static lv_res_t _joycon_info_dump_action(lv_obj_t * btn)
 {
 	FIL fp;
+	int error;
 	bool is_l_hos = false;
 	bool is_r_hos = false;
 	jc_gamepad_rpt_t *jc_pad = jc_get_bt_pairing_info(&is_l_hos, &is_r_hos);
 
+	char *data = (char *)malloc(0x4000);
+	char *txt_buf = (char *)malloc(0x1000);
+
+	if (!jc_pad)
+	{
+		error = 255;
+		goto disabled;
+	}
+
 	// Count valid joycon.
 	u32 joycon_found = jc_pad->bt_conn_l.type ? 1 : 0;
 	if (jc_pad->bt_conn_r.type)
@@ -753,10 +763,7 @@ static lv_res_t _joycon_info_dump_action(lv_obj_t * btn)
 	jc_pad->bt_conn_l.type = is_l_hos ? jc_pad->bt_conn_l.type : 0;
 	jc_pad->bt_conn_r.type = is_r_hos ? jc_pad->bt_conn_r.type : 0;
 
-	int error = !sd_mount();
-
-	char *data = (char *)malloc(0x4000);
-	char *txt_buf = (char *)malloc(0x1000);
+	error = !sd_mount();
 
 	if (!error)
 	{
@@ -798,6 +805,7 @@ static lv_res_t _joycon_info_dump_action(lv_obj_t * btn)
 		sd_unmount();
 	}
 
+disabled:;
 	lv_obj_t *dark_bg = lv_obj_create(lv_scr_act(), NULL);
 	lv_obj_set_style(dark_bg, &mbox_darken);
 	lv_obj_set_size(dark_bg, LV_HOR_RES, LV_VER_RES);

nyx/nyx_gui/nyx.c

@@ -270,6 +270,8 @@ void load_saved_configuration()
 						n_cfg.verification = atoi(kv->val);
 					else if (!strcmp("umsemmcrw", kv->key))
 						n_cfg.ums_emmc_rw = atoi(kv->val) == 1;
+					else if (!strcmp("jcdisable", kv->key))
+						n_cfg.jc_disable = atoi(kv->val) == 1;
 				}
 
 				break;