[N64] Reduce scope of N64 digital workaround to N64 port 1 only

darthcloud · Jun 28, 2022 · 8e408d9 · 8e408d9
1 parent cc4c824
commit 8e408d9
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/main/wired/nsi.c b/main/wired/nsi.c
@@ -530,7 +530,14 @@ void nsi_init(void) {
         RMT.conf_ch[rmt_ch[i][system]].conf1.rx_filter_en = 0;
 
         PIN_FUNC_SELECT(GPIO_PIN_MUX_REG_IRAM[gpio_pin[i]], PIN_FUNC_GPIO);
-        gpio_set_direction_iram(gpio_pin[i], GPIO_MODE_INPUT_OUTPUT); /* Bidirectional open-drain */
+        if (wired_adapter.system_id == N64 && i == 0) {
+            /* Bidirectional push-pull to workaround N64 Digital OSD glitching the line on port 1 */
+            gpio_set_direction_iram(gpio_pin[i], GPIO_MODE_INPUT_OUTPUT);
+        }
+        else {
+            /* Bidirectional open-drain */
+            gpio_set_direction_iram(gpio_pin[i], GPIO_MODE_INPUT_OUTPUT_OD);
+        }
         gpio_matrix_out(gpio_pin[i], RMT_SIG_OUT0_IDX + rmt_ch[i][system], 0, 0);
         gpio_matrix_in(gpio_pin[i], RMT_SIG_IN0_IDX + rmt_ch[i][system], 0);