Added option to toggle cs in displayio init sequence

3 files changed, 8 insertions, 4 deletions

diff --git a/shared-bindings/displayio/Display.c b/shared-bindings/displayio/Display.c
index 1f46330e8..3f5eef34a 100644
--- a/shared-bindings/displayio/Display.c
+++ b/shared-bindings/displayio/Display.c
@@ -50,7 +50,7 @@
 //| Most people should not use this class directly. Use a specific display driver instead that will
 //| contain the initialization sequence at minimum.
 //|
-//| .. class:: Display(display_bus, init_sequence, *, width, height, colstart=0, rowstart=0, rotation=0, color_depth=16, set_column_command=0x2a, set_row_command=0x2b, write_ram_command=0x2c, set_vertical_scroll=0, backlight_pin=None)
+//| .. class:: Display(display_bus, init_sequence, *, width, height, colstart=0, rowstart=0, rotation=0, color_depth=16, set_column_command=0x2a, set_row_command=0x2b, write_ram_command=0x2c, set_vertical_scroll=0, backlight_pin=None, init_cs_toggle=False)
 //|
 //|   Create a Display object on the given display bus (`displayio.FourWire` or `displayio.ParallelBus`).
 //|
@@ -93,7 +93,7 @@
 //|   :param microcontroller.Pin backlight_pin: Pin connected to the display's backlight
 //|
 STATIC mp_obj_t displayio_display_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
-    enum { ARG_display_bus, ARG_init_sequence, ARG_width, ARG_height, ARG_colstart, ARG_rowstart, ARG_rotation, ARG_color_depth, ARG_set_column_command, ARG_set_row_command, ARG_write_ram_command, ARG_set_vertical_scroll, ARG_backlight_pin };
+    enum { ARG_display_bus, ARG_init_sequence, ARG_width, ARG_height, ARG_colstart, ARG_rowstart, ARG_rotation, ARG_color_depth, ARG_set_column_command, ARG_set_row_command, ARG_write_ram_command, ARG_set_vertical_scroll, ARG_backlight_pin, ARG_init_cs_toggle };
     static const mp_arg_t allowed_args[] = {
         { MP_QSTR_display_bus, MP_ARG_REQUIRED | MP_ARG_OBJ },
         { MP_QSTR_init_sequence, MP_ARG_REQUIRED | MP_ARG_OBJ },
@@ -108,6 +108,7 @@ STATIC mp_obj_t displayio_display_make_new(const mp_obj_type_t *type, size_t n_a
         { MP_QSTR_write_ram_command, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0x2c} },
         { MP_QSTR_set_vertical_scroll, MP_ARG_INT | MP_ARG_KW_ONLY, {.u_int = 0x0} },
         { MP_QSTR_backlight_pin, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = mp_const_none} },
+        { MP_QSTR_init_cs_toggle, MP_ARG_BOOL | MP_ARG_KW_ONLY, {.u_bool = false} },
     };
     mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
     mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
@@ -146,7 +147,8 @@ STATIC mp_obj_t displayio_display_make_new(const mp_obj_type_t *type, size_t n_a
             args[ARG_color_depth].u_int, args[ARG_set_column_command].u_int, args[ARG_set_row_command].u_int,
             args[ARG_write_ram_command].u_int,
             args[ARG_set_vertical_scroll].u_int,
-            bufinfo.buf, bufinfo.len, MP_OBJ_TO_PTR(backlight_pin));
+            bufinfo.buf, bufinfo.len, MP_OBJ_TO_PTR(backlight_pin),
+            args[ARG_init_cs_toggle].u_bool);
 
     return self;
 }
diff --git a/shared-bindings/displayio/Display.h b/shared-bindings/displayio/Display.h
index 7d6444a2d..407afe1c3 100644
--- a/shared-bindings/displayio/Display.h
+++ b/shared-bindings/displayio/Display.h
@@ -40,7 +40,7 @@ void common_hal_displayio_display_construct(displayio_display_obj_t* self,
     mp_obj_t bus, uint16_t width, uint16_t height,
     int16_t colstart, int16_t rowstart, uint16_t rotation, uint16_t color_depth,
     uint8_t set_column_command, uint8_t set_row_command, uint8_t write_ram_command, uint8_t set_vertical_scroll,
-    uint8_t* init_sequence, uint16_t init_sequence_len, const mcu_pin_obj_t* backlight_pin);
+    uint8_t* init_sequence, uint16_t init_sequence_len, const mcu_pin_obj_t* backlight_pin, bool init_cs_toggle);
 
 int32_t common_hal_displayio_display_wait_for_frame(displayio_display_obj_t* self);
 
diff --git a/shared-bindings/displayio/FourWire.h b/shared-bindings/displayio/FourWire.h
index b8b00372c..a7fda2638 100644
--- a/shared-bindings/displayio/FourWire.h
+++ b/shared-bindings/displayio/FourWire.h
@@ -47,4 +47,6 @@ void common_hal_displayio_fourwire_send(mp_obj_t self, bool command, uint8_t *da
 
 void common_hal_displayio_fourwire_end_transaction(mp_obj_t self);
 
+void common_hal_displayio_fourwire_set_cs(mp_obj_t self, bool high);
+
 #endif // MICROPY_INCLUDED_SHARED_BINDINGS_DISPLAYBUSIO_FOURWIRE_H