Add GxEPD2_750 (750) mono panel descriptor

Autonomous capture-pipeline run; structural, not bench-verified.

components/gxepd2/display.py

@@ -124,6 +124,7 @@ PANELS = {
     "GxEPD2_576_GDEH0576T81_BW_SHM": Panel("PANEL_576_GDEH0576T81_BW_SHM", "GDEH0576T81", "SSD2677", "mono", "structural"),
     "GxEPD2_579_GDEY0579T93": Panel("PANEL_579_GDEY0579T93", "GDEY0579T93", "TODO", "mono", "structural"),
     "GxEPD2_583_T8": Panel("PANEL_583_T8", "GDEW0583T8", "GD7965", "mono", "structural"),
+    "GxEPD2_750": Panel("PANEL_750", "TODO", "IL0371", "mono", "structural"),
     # Diagnostic variant: the 396x272 master region as a self-contained panel.
     "GxEPD2_579c_GDEY0579F51_MASTER_ONLY": Panel(
         "PANEL_579C_GDEY0579F51_MASTER_ONLY", "GDEY0579F51", "HX8717", "4-color", "diagnostic"),

components/gxepd2/gxepd2_display.h

@@ -5,6 +5,7 @@
 #include "esphome/components/display/display_buffer.h"
 #include "esphome/components/spi/spi.h"
 #include "cycle_engine.h"
+#include "panel_750.h"
 #include "panel_583_t8.h"
 #include "panel_579_gdey0579t93.h"
 #include "panel_576_gdeh0576t81_bw_shm.h"

components/gxepd2/panel_750.h

@@ -0,0 +1,124 @@
+// GENERATED by emit_descriptor from GxEPD2_750 - candidate.
+// Command sequences, plane layout and plane_invert are observed here;
+// for a packed panel bits_per_pixel/palette/blank_code are probe-filled
+// when the colour family is recognised (4-colour/7-colour), else left TODO. A
+// dual-region panel also gets plane_width and a candidate line_order; the
+// exact PAIRED_EDGES row order still wants diag/driver confirmation.
+#pragma once
+#include "epd_command.h"
+
+namespace esphome::gxepd2 {
+
+// 2-code packed mono (see .bits_per_pixel below): derived purely by observing
+// raw white/black fills through the plane-write path, no colour wrapper to
+// drive (see make_resolver_bw_packed in emit_descriptor.h).
+inline const EpdPaletteEntry PANEL_750_PALETTE[] = {
+    {0x00, 0x00, 0x00, 0x00},  // black
+    {0xFF, 0xFF, 0xFF, 0x03},  // white
+};
+inline const uint8_t PANEL_750_PALETTE_LEN = sizeof(PANEL_750_PALETTE) / sizeof(PANEL_750_PALETTE[0]);
+
+inline const uint8_t PANEL_750_INIT_0_65[] = {0x01};
+inline const uint8_t PANEL_750_INIT_2_65[] = {0x00};
+inline const uint8_t PANEL_750_INIT_3_01[] = {0x37, 0x00};
+inline const uint8_t PANEL_750_INIT_4_00[] = {0xCF, 0x08};
+inline const uint8_t PANEL_750_INIT_5_06[] = {0xC7, 0xCC, 0x28};
+inline const uint8_t PANEL_750_INIT_6_30[] = {0x3C};
+inline const uint8_t PANEL_750_INIT_7_41[] = {0x00};
+inline const uint8_t PANEL_750_INIT_8_50[] = {0x77};
+inline const uint8_t PANEL_750_INIT_9_60[] = {0x22};
+inline const uint8_t PANEL_750_INIT_10_61[] = {0x02, 0x80, 0x01, 0x80};
+inline const uint8_t PANEL_750_INIT_11_82[] = {0x1E};
+inline const uint8_t PANEL_750_INIT_12_E5[] = {0x03};
+
+inline const EpdCommand PANEL_750_INIT[] = {
+    {0x65, PANEL_750_INIT_0_65, 1},
+    {0xAB, nullptr, 0},
+    {0x65, PANEL_750_INIT_2_65, 1},
+    {0x01, PANEL_750_INIT_3_01, 2},
+    {0x00, PANEL_750_INIT_4_00, 2},
+    {0x06, PANEL_750_INIT_5_06, 3},
+    {0x30, PANEL_750_INIT_6_30, 1},
+    {0x41, PANEL_750_INIT_7_41, 1},
+    {0x50, PANEL_750_INIT_8_50, 1},
+    {0x60, PANEL_750_INIT_9_60, 1},
+    {0x61, PANEL_750_INIT_10_61, 4},
+    {0x82, PANEL_750_INIT_11_82, 1},
+    {0xE5, PANEL_750_INIT_12_E5, 1},
+    {0x04, nullptr, 0, /*delay_before_ms=*/0, /*delay_after_ms=*/0, /*wait_busy_after=*/true},
+};
+
+inline const uint8_t PANEL_750_WINDOW_SEQ0_1_90[] = {0x00, 0x00, 0x02, 0x7F, 0x00, 0x00, 0x01, 0x7F, 0x01};
+
+inline const EpdCommand PANEL_750_WINDOW_SEQ0[] = {
+    {0x91, nullptr, 0},
+    {0x90, PANEL_750_WINDOW_SEQ0_1_90, 9},
+};
+
+inline const uint8_t PANEL_750_REFRESH_1_65[] = {0x01};
+inline const uint8_t PANEL_750_REFRESH_3_65[] = {0x00};
+inline const uint8_t PANEL_750_REFRESH_4_01[] = {0x37, 0x00};
+inline const uint8_t PANEL_750_REFRESH_5_00[] = {0xCF, 0x08};
+inline const uint8_t PANEL_750_REFRESH_6_06[] = {0xC7, 0xCC, 0x28};
+inline const uint8_t PANEL_750_REFRESH_7_30[] = {0x3C};
+inline const uint8_t PANEL_750_REFRESH_8_41[] = {0x00};
+inline const uint8_t PANEL_750_REFRESH_9_50[] = {0x77};
+inline const uint8_t PANEL_750_REFRESH_10_60[] = {0x22};
+inline const uint8_t PANEL_750_REFRESH_11_61[] = {0x02, 0x80, 0x01, 0x80};
+inline const uint8_t PANEL_750_REFRESH_12_82[] = {0x1E};
+inline const uint8_t PANEL_750_REFRESH_13_E5[] = {0x03};
+
+inline const EpdCommand PANEL_750_REFRESH[] = {
+    {0x92, nullptr, 0, /*delay_before_ms=*/0, /*delay_after_ms=*/1, /*wait_busy_after=*/false},
+    {0x65, PANEL_750_REFRESH_1_65, 1},
+    {0xAB, nullptr, 0},
+    {0x65, PANEL_750_REFRESH_3_65, 1},
+    {0x01, PANEL_750_REFRESH_4_01, 2},
+    {0x00, PANEL_750_REFRESH_5_00, 2},
+    {0x06, PANEL_750_REFRESH_6_06, 3},
+    {0x30, PANEL_750_REFRESH_7_30, 1},
+    {0x41, PANEL_750_REFRESH_8_41, 1},
+    {0x50, PANEL_750_REFRESH_9_50, 1},
+    {0x60, PANEL_750_REFRESH_10_60, 1},
+    {0x61, PANEL_750_REFRESH_11_61, 4},
+    {0x82, PANEL_750_REFRESH_12_82, 1},
+    {0xE5, PANEL_750_REFRESH_13_E5, 1},
+    {0x12, nullptr, 0, /*delay_before_ms=*/0, /*delay_after_ms=*/0, /*wait_busy_after=*/true},
+};
+
+
+inline const EpdCommand PANEL_750_POWER_OFF[] = {
+    {0x02, nullptr, 0, /*delay_before_ms=*/0, /*delay_after_ms=*/0, /*wait_busy_after=*/true},
+};
+
+inline const uint8_t PANEL_750_HIBERNATE_0_07[] = {0xA5};
+
+inline const EpdCommand PANEL_750_HIBERNATE[] = {
+    {0x07, PANEL_750_HIBERNATE_0_07, 1},
+};
+
+inline const EpdPanelDescriptor PANEL_750 = {
+    .width = 640,
+    .height = 384,
+    .busy_active_level = false,
+    .busy_timeout_ms = 60000,  // generous diagnostic ceiling (vendor full_refresh_time 4500ms, 4bpp 7-colour class); dev-tunable
+    .init_sequence = PANEL_750_INIT,
+    .init_sequence_len = sizeof(PANEL_750_INIT) / sizeof(PANEL_750_INIT[0]),
+    .window_sequence = {PANEL_750_WINDOW_SEQ0, nullptr},
+    .window_sequence_len = {sizeof(PANEL_750_WINDOW_SEQ0) / sizeof(PANEL_750_WINDOW_SEQ0[0]), 0},
+    .plane_count = 1,
+    .plane_write_cmd = {0x10, 0x00},
+    .plane_invert = {false, false},  // unused: packed panel
+    .bits_per_pixel = 4,  // probe: derived from raw 1bpp fills, no colour wrapper: black=0x00 white=0x03, 2 px/wire-byte
+    .palette = PANEL_750_PALETTE,
+    .palette_len = PANEL_750_PALETTE_LEN,
+    .blank_code = 0x03,  // observed white-fill code
+    .refresh_sequence = PANEL_750_REFRESH,
+    .refresh_sequence_len = sizeof(PANEL_750_REFRESH) / sizeof(PANEL_750_REFRESH[0]),
+    .power_off_sequence = PANEL_750_POWER_OFF,  // probe: powerOff(), fresh session after a normal refresh
+    .power_off_sequence_len = sizeof(PANEL_750_POWER_OFF) / sizeof(PANEL_750_POWER_OFF[0]),
+    .hibernate_sequence = PANEL_750_HIBERNATE,  // probe: hibernate()'s tail past powerOff() (see file header)
+    .hibernate_sequence_len = sizeof(PANEL_750_HIBERNATE) / sizeof(PANEL_750_HIBERNATE[0]),
+};
+
+}  // namespace esphome::gxepd2