drivers/ninaw10/nina_bt_hci: Make some minor fixes to HCI driver.

Fixes are:
- Reset the module first before changing GPIO1 direction.
- Skip spurious bytes received after reset.
- Use HCI UART ID and baudrate when reinitializing UART.
- Disable all printf output which causes unit-tests to fail.
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>

drivers/ninaw10/nina_bt_hci.c

@@ -50,7 +50,7 @@
 #define OCF_SET_EVENT_MASK      (0x0001)
 #define OCF_RESET               (0x0003)
 
-#define error_printf(...)   mp_printf(&mp_plat_print, "nina_bt_hci.c: " __VA_ARGS__)
+#define error_printf(...)   // mp_printf(&mp_plat_print, "nina_bt_hci.c: " __VA_ARGS__)
 #define debug_printf(...)   // mp_printf(&mp_plat_print, "nina_bt_hci.c: " __VA_ARGS__)
 
 // Provided by the port, and also possibly shared with the stack.
@@ -86,7 +86,7 @@ static int nina_hci_cmd(int ogf, int ocf, size_t param_len, const uint8_t *param
         buf[i] = mp_bluetooth_hci_uart_readchar();
 
         // There seems to be a sync issue with this fw/module.
-        if (i == 0 && buf[0] == 0xFF) {
+        if (i == 0 && (buf[0] == 0xFF || buf[0] == 0xFE)) {
             continue;
         }
 
@@ -121,19 +121,19 @@ static int nina_hci_cmd(int ogf, int ocf, size_t param_len, const uint8_t *param
 
 int mp_bluetooth_hci_controller_init(void) {
     // This is called immediately after the UART is initialised during stack initialisation.
-    mp_hal_pin_output(MICROPY_HW_NINA_GPIO1);
     mp_hal_pin_output(MICROPY_HW_NINA_RESET);
+    mp_hal_pin_write(MICROPY_HW_NINA_RESET, 0);
 
+    mp_hal_pin_output(MICROPY_HW_NINA_GPIO1);
     mp_hal_pin_write(MICROPY_HW_NINA_GPIO1, 0);
-    mp_hal_pin_write(MICROPY_HW_NINA_RESET, 0);
-    mp_hal_delay_ms(100);
+    mp_hal_delay_ms(150);
 
     mp_hal_pin_write(MICROPY_HW_NINA_RESET, 1);
     mp_hal_delay_ms(750);
 
-    // The UART must be re-initialize here because the GPIO1/RX pin is used initially
+    // The UART must be re-initialized here because the GPIO1/RX pin is used initially
     // to reset the module in Bluetooth mode. This will change back the pin to UART RX.
-    mp_bluetooth_hci_uart_init(0, 0);
+    mp_bluetooth_hci_uart_init(MICROPY_HW_BLE_UART_ID, MICROPY_HW_BLE_UART_BAUDRATE);
 
     // Send reset command
     return nina_hci_cmd(OGF_HOST_CTL, OCF_RESET, 0, NULL);