[mipi_dsi] add JC8012P4A1 (#13241)

esphome/components/mipi_dsi/models/guition.py

@@ -101,4 +101,225 @@ DriverChip(
         (0xFF, 0x77, 0x01, 0x00, 0x00, 0x00),
     ]
 )
+
+# jc8012P4A1 Driver Configuration (jd9365)
+# Using parameters from esp_lcd_jd9365.h and the working full init sequence
+# ----------------------------------------------------------------------------------------------------------------------
+# * Resolution: 800x1280
+# * PCLK Frequency: 60 MHz
+# * DSI Lane Bit Rate: 1 Gbps (using 2-Lane DSI configuration)
+# * Horizontal Timing (hsync_pulse_width=20, hsync_back_porch=20, hsync_front_porch=40)
+# * Vertical Timing (vsync_pulse_width=4, vsync_back_porch=8, vsync_front_porch=20)
+# ----------------------------------------------------------------------------------------------------------------------
+DriverChip(
+    "JC8012P4A1",
+    width=800,
+    height=1280,
+    hsync_back_porch=20,
+    hsync_pulse_width=20,
+    hsync_front_porch=40,
+    vsync_back_porch=8,
+    vsync_pulse_width=4,
+    vsync_front_porch=20,
+    pclk_frequency="60MHz",
+    lane_bit_rate="1Gbps",
+    swap_xy=cv.UNDEFINED,
+    color_order="RGB",
+    reset_pin=27,
+    initsequence=[
+        (0xE0, 0x00),
+        (0xE1, 0x93),
+        (0xE2, 0x65),
+        (0xE3, 0xF8),
+        (0x80, 0x01),
+        (0xE0, 0x01),
+        (0x00, 0x00),
+        (0x01, 0x39),
+        (0x03, 0x10),
+        (0x04, 0x41),
+        (0x0C, 0x74),
+        (0x17, 0x00),
+        (0x18, 0xD7),
+        (0x19, 0x00),
+        (0x1A, 0x00),
+        (0x1B, 0xD7),
+        (0x1C, 0x00),
+        (0x24, 0xFE),
+        (0x35, 0x26),
+        (0x37, 0x69),
+        (0x38, 0x05),
+        (0x39, 0x06),
+        (0x3A, 0x08),
+        (0x3C, 0x78),
+        (0x3D, 0xFF),
+        (0x3E, 0xFF),
+        (0x3F, 0xFF),
+        (0x40, 0x06),
+        (0x41, 0xA0),
+        (0x43, 0x14),
+        (0x44, 0x0B),
+        (0x45, 0x30),
+        (0x4B, 0x04),
+        (0x55, 0x02),
+        (0x57, 0x89),
+        (0x59, 0x0A),
+        (0x5A, 0x28),
+        (0x5B, 0x15),
+        (0x5D, 0x50),
+        (0x5E, 0x37),
+        (0x5F, 0x29),
+        (0x60, 0x1E),
+        (0x61, 0x1D),
+        (0x62, 0x12),
+        (0x63, 0x1A),
+        (0x64, 0x08),
+        (0x65, 0x25),
+        (0x66, 0x26),
+        (0x67, 0x28),
+        (0x68, 0x49),
+        (0x69, 0x3A),
+        (0x6A, 0x43),
+        (0x6B, 0x3A),
+        (0x6C, 0x3B),
+        (0x6D, 0x32),
+        (0x6E, 0x1F),
+        (0x6F, 0x0E),
+        (0x70, 0x50),
+        (0x71, 0x37),
+        (0x72, 0x29),
+        (0x73, 0x1E),
+        (0x74, 0x1D),
+        (0x75, 0x12),
+        (0x76, 0x1A),
+        (0x77, 0x08),
+        (0x78, 0x25),
+        (0x79, 0x26),
+        (0x7A, 0x28),
+        (0x7B, 0x49),
+        (0x7C, 0x3A),
+        (0x7D, 0x43),
+        (0x7E, 0x3A),
+        (0x7F, 0x3B),
+        (0x80, 0x32),
+        (0x81, 0x1F),
+        (0x82, 0x0E),
+        (0xE0, 0x02),
+        (0x00, 0x1F),
+        (0x01, 0x1F),
+        (0x02, 0x52),
+        (0x03, 0x51),
+        (0x04, 0x50),
+        (0x05, 0x4B),
+        (0x06, 0x4A),
+        (0x07, 0x49),
+        (0x08, 0x48),
+        (0x09, 0x47),
+        (0x0A, 0x46),
+        (0x0B, 0x45),
+        (0x0C, 0x44),
+        (0x0D, 0x40),
+        (0x0E, 0x41),
+        (0x0F, 0x1F),
+        (0x10, 0x1F),
+        (0x11, 0x1F),
+        (0x12, 0x1F),
+        (0x13, 0x1F),
+        (0x14, 0x1F),
+        (0x15, 0x1F),
+        (0x16, 0x1F),
+        (0x17, 0x1F),
+        (0x18, 0x52),
+        (0x19, 0x51),
+        (0x1A, 0x50),
+        (0x1B, 0x4B),
+        (0x1C, 0x4A),
+        (0x1D, 0x49),
+        (0x1E, 0x48),
+        (0x1F, 0x47),
+        (0x20, 0x46),
+        (0x21, 0x45),
+        (0x22, 0x44),
+        (0x23, 0x40),
+        (0x24, 0x41),
+        (0x25, 0x1F),
+        (0x26, 0x1F),
+        (0x27, 0x1F),
+        (0x28, 0x1F),
+        (0x29, 0x1F),
+        (0x2A, 0x1F),
+        (0x2B, 0x1F),
+        (0x2C, 0x1F),
+        (0x2D, 0x1F),
+        (0x2E, 0x52),
+        (0x2F, 0x40),
+        (0x30, 0x41),
+        (0x31, 0x48),
+        (0x32, 0x49),
+        (0x33, 0x4A),
+        (0x34, 0x4B),
+        (0x35, 0x44),
+        (0x36, 0x45),
+        (0x37, 0x46),
+        (0x38, 0x47),
+        (0x39, 0x51),
+        (0x3A, 0x50),
+        (0x3B, 0x1F),
+        (0x3C, 0x1F),
+        (0x3D, 0x1F),
+        (0x3E, 0x1F),
+        (0x3F, 0x1F),
+        (0x40, 0x1F),
+        (0x41, 0x1F),
+        (0x42, 0x1F),
+        (0x43, 0x1F),
+        (0x44, 0x52),
+        (0x45, 0x40),
+        (0x46, 0x41),
+        (0x47, 0x48),
+        (0x48, 0x49),
+        (0x49, 0x4A),
+        (0x4A, 0x4B),
+        (0x4B, 0x44),
+        (0x4C, 0x45),
+        (0x4D, 0x46),
+        (0x4E, 0x47),
+        (0x4F, 0x51),
+        (0x50, 0x50),
+        (0x51, 0x1F),
+        (0x52, 0x1F),
+        (0x53, 0x1F),
+        (0x54, 0x1F),
+        (0x55, 0x1F),
+        (0x56, 0x1F),
+        (0x57, 0x1F),
+        (0x58, 0x40),
+        (0x59, 0x00),
+        (0x5A, 0x00),
+        (0x5B, 0x10),
+        (0x5C, 0x05),
+        (0x5D, 0x50),
+        (0x5E, 0x01),
+        (0x5F, 0x02),
+        (0x60, 0x50),
+        (0x61, 0x06),
+        (0x62, 0x04),
+        (0x63, 0x03),
+        (0x64, 0x64),
+        (0x65, 0x65),
+        (0x66, 0x0B),
+        (0x67, 0x73),
+        (0x68, 0x07),
+        (0x69, 0x06),
+        (0x6A, 0x64),
+        (0x6B, 0x08),
+        (0x6C, 0x00),
+        (0x6D, 0x32),
+        (0x6E, 0x08),
+        (0xE0, 0x04),
+        (0x2C, 0x6B),
+        (0x35, 0x08),
+        (0x37, 0x00),
+        (0xE0, 0x00),
+    ]
+)
 # fmt: on

esphome/core/helpers.cpp

@@ -487,19 +487,26 @@ static constexpr const char *BASE64_CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
                                             "abcdefghijklmnopqrstuvwxyz"
                                             "0123456789+/";
 
-// Helper function to find the index of a base64 character in the lookup table.
+// Helper function to find the index of a base64/base64url character in the lookup table.
 // Returns the character's position (0-63) if found, or 0 if not found.
+// Supports both standard base64 (+/) and base64url (-_) alphabets.
 // NOTE: This returns 0 for both 'A' (valid base64 char at index 0) and invalid characters.
 // This is safe because is_base64() is ALWAYS checked before calling this function,
 // preventing invalid characters from ever reaching here. The base64_decode function
 // stops processing at the first invalid character due to the is_base64() check in its
 // while loop condition, making this edge case harmless in practice.
 static inline uint8_t base64_find_char(char c) {
+  // Handle base64url variants: '-' maps to '+' (index 62), '_' maps to '/' (index 63)
+  if (c == '-')
+    return 62;
+  if (c == '_')
+    return 63;
   const char *pos = strchr(BASE64_CHARS, c);
   return pos ? (pos - BASE64_CHARS) : 0;
 }
 
-static inline bool is_base64(char c) { return (isalnum(c) || (c == '+') || (c == '/')); }
+// Check if character is valid base64 or base64url
+static inline bool is_base64(char c) { return (isalnum(c) || (c == '+') || (c == '/') || (c == '-') || (c == '_')); }
 
 std::string base64_encode(const std::vector<uint8_t> &buf) { return base64_encode(buf.data(), buf.size()); }