Make DCS command constructors const.

mipidsi/src/dcs/set_address_mode.rs

@@ -13,20 +13,20 @@ pub struct SetAddressMode(u8);
 
 impl SetAddressMode {
     /// Creates a new Set Address Mode command.
-    pub fn new(
+    pub const fn new(
         color_order: ColorOrder,
         orientation: Orientation,
         refresh_order: RefreshOrder,
     ) -> Self {
-        Self::default()
+        Self(0)
             .with_color_order(color_order)
             .with_orientation(orientation)
             .with_refresh_order(refresh_order)
     }
 
     /// Returns this Madctl with [ColorOrder] set to new value
     #[must_use]
-    pub fn with_color_order(self, color_order: ColorOrder) -> Self {
+    pub const fn with_color_order(self, color_order: ColorOrder) -> Self {
         let mut result = self;
         match color_order {
             ColorOrder::Rgb => result.0 &= 0b1111_0111,
@@ -38,7 +38,7 @@ impl SetAddressMode {
 
     /// Returns this Madctl with [Orientation] set to new value
     #[must_use]
-    pub fn with_orientation(self, orientation: Orientation) -> Self {
+    pub const fn with_orientation(self, orientation: Orientation) -> Self {
         let mut result = self;
         let value = match orientation {
             Orientation::Portrait(false) => 0b0000_0000,
@@ -57,7 +57,7 @@ impl SetAddressMode {
 
     /// Returns this Madctl with [RefreshOrder] set to new value
     #[must_use]
-    pub fn with_refresh_order(self, refresh_order: RefreshOrder) -> Self {
+    pub const fn with_refresh_order(self, refresh_order: RefreshOrder) -> Self {
         let mut result = self;
         let value = match (refresh_order.vertical, refresh_order.horizontal) {
             (VerticalRefreshOrder::TopToBottom, HorizontalRefreshOrder::LeftToRight) => 0b0000_0000,

mipidsi/src/dcs/set_column_address.rs

@@ -13,7 +13,7 @@ pub struct SetColumnAddress {
 
 impl SetColumnAddress {
     /// Creates a new Set Column Address command.
-    pub fn new(start_column: u16, end_column: u16) -> Self {
+    pub const fn new(start_column: u16, end_column: u16) -> Self {
         Self {
             start_column,
             end_column,

mipidsi/src/dcs/set_page_address.rs

@@ -13,7 +13,7 @@ pub struct SetPageAddress {
 
 impl SetPageAddress {
     /// Creates a new Set Page Address command.
-    pub fn new(start_row: u16, end_row: u16) -> Self {
+    pub const fn new(start_row: u16, end_row: u16) -> Self {
         Self { start_row, end_row }
     }
 }

mipidsi/src/dcs/set_pixel_format.rs

@@ -10,7 +10,7 @@ pub struct SetPixelFormat(PixelFormat);
 
 impl SetPixelFormat {
     /// Creates a new Set Pixel Format command.
-    pub fn new(pixel_format: PixelFormat) -> Self {
+    pub const fn new(pixel_format: PixelFormat) -> Self {
         Self(pixel_format)
     }
 }

mipidsi/src/dcs/set_scroll_area.rs

@@ -16,7 +16,7 @@ impl SetScrollArea {
     /// Creates a new Set Scroll Area command.
     ///
     /// VSA should default to the display's height (or width) framebuffer size.
-    pub fn new(tfa: u16, vsa: u16, bfa: u16) -> Self {
+    pub const fn new(tfa: u16, vsa: u16, bfa: u16) -> Self {
         Self { tfa, vsa, bfa }
     }
 }

mipidsi/src/dcs/set_scroll_start.rs

@@ -10,7 +10,7 @@ pub struct SetScrollStart(u16);
 
 impl SetScrollStart {
     /// Creates a new Set Scroll Start command.
-    pub fn new(offset: u16) -> Self {
+    pub const fn new(offset: u16) -> Self {
         Self(offset)
     }
 }