alif/boards/ALIF_ENSEMBLE: Add all SW1 pins and enable pull-ups on them.

Signed-off-by: Damien George <damien@micropython.org>

Author: dpgeorge

ports/alif/boards/ALIF_ENSEMBLE/board.c

@@ -54,3 +54,12 @@ const ospi_flash_settings_t ospi_flash_settings[] = {
     },
 };
 const size_t ospi_flash_settings_len = 1;
+
+void board_early_init(void) {
+    // Configure the joystick buttons as an input with pull-up enabled.
+    mp_hal_pin_config(pin_JOY_LEFT, MP_HAL_PIN_MODE_INPUT, MP_HAL_PIN_PULL_UP, 0, 0, 0, true);
+    mp_hal_pin_config(pin_JOY_RIGHT, MP_HAL_PIN_MODE_INPUT, MP_HAL_PIN_PULL_UP, 0, 0, 0, true);
+    mp_hal_pin_config(pin_JOY_DOWN, MP_HAL_PIN_MODE_INPUT, MP_HAL_PIN_PULL_UP, 0, 0, 0, true);
+    mp_hal_pin_config(pin_JOY_UP, MP_HAL_PIN_MODE_INPUT, MP_HAL_PIN_PULL_UP, 0, 0, 0, true);
+    mp_hal_pin_config(pin_JOY_SW, MP_HAL_PIN_MODE_INPUT, MP_HAL_PIN_PULL_UP, 0, 0, 0, true);
+}

ports/alif/boards/ALIF_ENSEMBLE/mpconfigboard.h

@@ -54,3 +54,7 @@
 #define MICROPY_HW_FLASH_STORAGE_BYTES          (32 * 1024 * 1024)
 #define MICROPY_HW_FLASH_STORAGE_FS_BYTES       (16 * 1024 * 1024)
 #define MICROPY_HW_FLASH_STORAGE_ROMFS_BYTES    (16 * 1024 * 1024)
+
+#define MICROPY_BOARD_EARLY_INIT                board_early_init
+
+void board_early_init(void);

ports/alif/boards/ALIF_ENSEMBLE/pins.csv

@@ -12,10 +12,16 @@ OSPI1_D6,P10_3
 OSPI1_D7,P10_4
 OSPI1_RXDS,P10_7
 
+# LEDs
 LED_BLUE,P12_0
 LED_RED,P12_3
+
+# SW1 joystick
 JOY_LEFT,P15_0
 JOY_RIGHT,P15_1
+JOY_DOWN,P15_2
+JOY_UP,P15_3
+JOY_SW,P15_4
 
 # UART buses
 UART0_TX,P0_1