8.2.x backport picopad by @lynt-smitka

ports/raspberrypi/boards/pajenicko_picopad/board.c

@@ -0,0 +1,114 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "supervisor/board.h"
+#include "mpconfigboard.h"
+#include "shared-bindings/busio/SPI.h"
+#include "shared-bindings/displayio/FourWire.h"
+#include "shared-module/displayio/__init__.h"
+#include "shared-module/displayio/mipi_constants.h"
+#include "supervisor/shared/board.h"
+
+displayio_fourwire_obj_t board_display_obj;
+
+#define DELAY 0x80
+
+uint8_t display_init_sequence[] = {
+    0x01, 0 | DELAY, 150, // SWRESET
+
+    0x36, 1, 0x60, // MADCTL
+    0x35, 1, 0x00, // TEON
+    0xB2, 5, 0x0c, 0x0c, 0x00, 0x33, 0x33, // FRMCTR2
+    0x3A, 1, 0x05, // COLMOD
+    0xB7, 1, 0x14, // GCTRL
+    0xBB, 1, 0x37, // VCOMS
+    0xC0, 1, 0x2c, // LCMCTRL
+    0xC2, 1, 0x01, // VDVVRHEN
+    0xC3, 1, 0x12, // VRHS
+    0xC4, 1, 0x20, // VDVS
+    0xD0, 2, 0xa4, 0xa1, // PWRCTRL1
+    0xC6, 1, 0x0f, // FRCTRL2
+    0xE0, 14, 0xd0, 0x04, 0x0d, 0x11, 0x13, 0x2b, 0x3f, 0x54, 0x4c, 0x18, 0x0d, 0x0b, 0x1f, 0x23, // GMCTRP1
+    0xE1, 14, 0xd0, 0x04, 0x0c, 0x11, 0x13, 0x2c, 0x3f, 0x44, 0x51, 0x2f, 0x1f, 0x1f, 0x20, 0x23, // GMCTRN1
+    0x21, 0, // INVON
+
+    0x11, 0 | DELAY, 255, // SLPOUT
+    0x29, 0 | DELAY, 100, // DISPON
+
+    0x2a, 4, 0x00, 0, 0x00, 0xfe, // CASET
+    0x2b, 4, 0x00, 0, 0x00, 0xfe, // RASET
+    0x2c, 0, // RAMWR
+};
+
+void board_init(void) {
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
+    common_hal_busio_spi_construct(spi, &pin_GPIO18, &pin_GPIO19, NULL, false);
+    common_hal_busio_spi_never_reset(spi);
+
+    bus->base.type = &displayio_fourwire_type;
+    common_hal_displayio_fourwire_construct(bus,
+        spi,
+        &pin_GPIO17, // TFT_DC Command or data
+        &pin_GPIO21, // TFT_CS Chip select
+        &pin_GPIO20, // TFT_RST Reset
+        60000000, // Baudrate
+        0, // Polarity
+        0); // Phase
+
+    displayio_display_obj_t *display = &allocate_display()->display;
+    display->base.type = &displayio_display_type;
+    common_hal_displayio_display_construct(display,
+        bus,
+        320, // Width
+        240, // Height
+        0, // column start
+        0, // row start
+        0, // rotation
+        16, // Color depth
+        false, // Grayscale
+        false, // pixels in a byte share a row. Only valid for depths < 8
+        1, // bytes per cell. Only valid for depths < 8
+        false, // reverse_pixels_in_byte. Only valid for depths < 8
+        true, // reverse_bytes_in_word
+        MIPI_COMMAND_SET_COLUMN_ADDRESS, // Set column command
+        MIPI_COMMAND_SET_PAGE_ADDRESS, // Set row command
+        MIPI_COMMAND_WRITE_MEMORY_START, // Write memory command
+        display_init_sequence,
+        sizeof(display_init_sequence),
+        &pin_GPIO16,  // backlight pin
+        NO_BRIGHTNESS_COMMAND,
+        1.0f, // brightness
+        false, // single_byte_bounds
+        false, // data_as_commands
+        true, // auto_refresh
+        60, // native_frames_per_second
+        true, // backlight_on_high
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
+}
+
+// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.

ports/raspberrypi/boards/pajenicko_picopad/link.ld

@@ -0,0 +1 @@
+firmware_size = 1532k;

ports/raspberrypi/boards/pajenicko_picopad/mpconfigboard.h

@@ -0,0 +1,12 @@
+#define MICROPY_HW_BOARD_NAME "Pajenicko PicoPad"
+#define MICROPY_HW_MCU_NAME "rp2040"
+
+#define CIRCUITPY_DIGITALIO_HAVE_INVALID_PULL (1)
+#define CIRCUITPY_DIGITALIO_HAVE_INVALID_DRIVE_MODE (1)
+
+#define MICROPY_HW_LED_STATUS   (&pin_CYW0)
+
+#define DEFAULT_UART_BUS_TX   (&pin_GPIO0)
+#define DEFAULT_UART_BUS_RX   (&pin_GPIO1)
+#define DEFAULT_I2C_BUS_SDA   (&pin_GPIO0)
+#define DEFAULT_I2C_BUS_SCL   (&pin_GPIO1)

ports/raspberrypi/boards/pajenicko_picopad/mpconfigboard.mk

@@ -0,0 +1,34 @@
+USB_VID = 0x2E8A
+USB_PID = 0x1063
+
+USB_PRODUCT = "PicoPad"
+USB_MANUFACTURER = "Pajenicko s.r.o."
+
+CHIP_VARIANT = RP2040
+CHIP_FAMILY = rp2
+
+EXTERNAL_FLASH_DEVICES = "W25Q16JVxQ"
+
+CIRCUITPY_KEYPAD = 1
+CIRCUITPY_STAGE = 1
+CIRCUITPY_AUDIOIO = 1
+
+CIRCUITPY__EVE = 1
+
+CIRCUITPY_CYW43 = 1
+CIRCUITPY_SSL = 1
+CIRCUITPY_SSL_MBEDTLS = 1
+CIRCUITPY_HASHLIB = 1
+CIRCUITPY_WEB_WORKFLOW = 1
+CIRCUITPY_MDNS = 1
+CIRCUITPY_SOCKETPOOL = 1
+CIRCUITPY_WIFI = 1
+
+CIRCUITPY_PICODVI = 1
+
+# Pimoroni PicoSystem peripherals are compatible, we can use of existing ugame.py
+FROZEN_MPY_DIRS += $(TOP)/frozen/circuitpython-stage/picosystem
+
+CFLAGS += -DCYW43_PIN_WL_HOST_WAKE=24 -DCYW43_PIN_WL_REG_ON=23 -DCYW43_WL_GPIO_COUNT=3 -DCYW43_WL_GPIO_LED_PIN=0
+# Must be accompanied by a linker script change
+CFLAGS += -DCIRCUITPY_FIRMWARE_SIZE='(1536 * 1024)'

ports/raspberrypi/boards/pajenicko_picopad/pico-sdk-configboard.h

@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.

ports/raspberrypi/boards/pajenicko_picopad/pins.c

@@ -0,0 +1,114 @@
+#include "shared-bindings/board/__init__.h"
+#include "shared-module/displayio/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
+    CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
+    // Default RPi Pico Pins
+    {MP_ROM_QSTR(MP_QSTR_GP0), MP_ROM_PTR(&pin_GPIO0)},
+    {MP_ROM_QSTR(MP_QSTR_GP1), MP_ROM_PTR(&pin_GPIO1)},
+    {MP_ROM_QSTR(MP_QSTR_GP2), MP_ROM_PTR(&pin_GPIO2)},
+    {MP_ROM_QSTR(MP_QSTR_GP3), MP_ROM_PTR(&pin_GPIO3)},
+    {MP_ROM_QSTR(MP_QSTR_GP4), MP_ROM_PTR(&pin_GPIO4)},
+    {MP_ROM_QSTR(MP_QSTR_GP5), MP_ROM_PTR(&pin_GPIO5)},
+    {MP_ROM_QSTR(MP_QSTR_GP6), MP_ROM_PTR(&pin_GPIO6)},
+    {MP_ROM_QSTR(MP_QSTR_GP7), MP_ROM_PTR(&pin_GPIO7)},
+    {MP_ROM_QSTR(MP_QSTR_GP8), MP_ROM_PTR(&pin_GPIO8)},
+    {MP_ROM_QSTR(MP_QSTR_GP9), MP_ROM_PTR(&pin_GPIO9)},
+    {MP_ROM_QSTR(MP_QSTR_GP10), MP_ROM_PTR(&pin_GPIO10)},
+    {MP_ROM_QSTR(MP_QSTR_GP11), MP_ROM_PTR(&pin_GPIO11)},
+    {MP_ROM_QSTR(MP_QSTR_GP12), MP_ROM_PTR(&pin_GPIO12)},
+    {MP_ROM_QSTR(MP_QSTR_GP13), MP_ROM_PTR(&pin_GPIO13)},
+    {MP_ROM_QSTR(MP_QSTR_GP14), MP_ROM_PTR(&pin_GPIO14)},
+    {MP_ROM_QSTR(MP_QSTR_GP15), MP_ROM_PTR(&pin_GPIO15)},
+    {MP_ROM_QSTR(MP_QSTR_GP16), MP_ROM_PTR(&pin_GPIO16)},
+    {MP_ROM_QSTR(MP_QSTR_GP17), MP_ROM_PTR(&pin_GPIO17)},
+    {MP_ROM_QSTR(MP_QSTR_GP18), MP_ROM_PTR(&pin_GPIO18)},
+    {MP_ROM_QSTR(MP_QSTR_GP19), MP_ROM_PTR(&pin_GPIO19)},
+    {MP_ROM_QSTR(MP_QSTR_GP20), MP_ROM_PTR(&pin_GPIO20)},
+    {MP_ROM_QSTR(MP_QSTR_GP21), MP_ROM_PTR(&pin_GPIO21)},
+    {MP_ROM_QSTR(MP_QSTR_GP22), MP_ROM_PTR(&pin_GPIO22)},
+    {MP_ROM_QSTR(MP_QSTR_GP26), MP_ROM_PTR(&pin_GPIO26)},
+    {MP_ROM_QSTR(MP_QSTR_GP27), MP_ROM_PTR(&pin_GPIO27)},
+    {MP_ROM_QSTR(MP_QSTR_GP28), MP_ROM_PTR(&pin_GPIO28)},
+
+    // PicoPad external connector
+    /*
+              ┌──────┐
+         GND -│1    2│- GND
+         3V3 -│3    4│- VBAT
+       D5/A2 -│5    6│- ADC_VREF
+       D4/A1 -│7    8│- AGND
+   D3/TX/SDA -│9   10│- D0/A0
+   D2/RX/SCL -│11  12│- D1
+              └──────┘
+    */
+
+    {MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_GPIO26)},
+    {MP_ROM_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_GPIO14)},
+    {MP_ROM_QSTR(MP_QSTR_D2), MP_ROM_PTR(&pin_GPIO1)},
+    {MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_GPIO0)},
+    {MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_GPIO27)},
+    {MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_GPIO28)},
+
+    {MP_ROM_QSTR(MP_QSTR_A0), MP_ROM_PTR(&pin_GPIO26)},
+    {MP_ROM_QSTR(MP_QSTR_A1), MP_ROM_PTR(&pin_GPIO27)},
+    {MP_ROM_QSTR(MP_QSTR_A2), MP_ROM_PTR(&pin_GPIO28)},
+
+    // PicoPad LCD
+    {MP_ROM_QSTR(MP_QSTR_LCD_RESET), MP_ROM_PTR(&pin_GPIO20)},
+    {MP_ROM_QSTR(MP_QSTR_LCD_CS), MP_ROM_PTR(&pin_GPIO21)},
+    {MP_ROM_QSTR(MP_QSTR_LCD_SCLK), MP_ROM_PTR(&pin_GPIO18)},
+    {MP_ROM_QSTR(MP_QSTR_LCD_MOSI), MP_ROM_PTR(&pin_GPIO19)},
+    {MP_ROM_QSTR(MP_QSTR_LCD_DC), MP_ROM_PTR(&pin_GPIO17)},
+    {MP_ROM_QSTR(MP_QSTR_LCD_BL), MP_ROM_PTR(&pin_GPIO16)},
+
+    // PicoPad Audio
+    {MP_ROM_QSTR(MP_QSTR_AUDIO), MP_ROM_PTR(&pin_GPIO15)},
+
+    // PicoPad USR LED (yellow)
+    {MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pin_GPIO22)},
+
+    // PicoPad Buttons
+    {MP_ROM_QSTR(MP_QSTR_SW_X), MP_ROM_PTR(&pin_GPIO9)},
+    {MP_ROM_QSTR(MP_QSTR_SW_Y), MP_ROM_PTR(&pin_GPIO8)},
+    {MP_ROM_QSTR(MP_QSTR_SW_A), MP_ROM_PTR(&pin_GPIO7)},
+    {MP_ROM_QSTR(MP_QSTR_SW_B), MP_ROM_PTR(&pin_GPIO6)},
+
+    {MP_ROM_QSTR(MP_QSTR_SW_DOWN), MP_ROM_PTR(&pin_GPIO5)},
+    {MP_ROM_QSTR(MP_QSTR_SW_RIGHT), MP_ROM_PTR(&pin_GPIO2)},
+    {MP_ROM_QSTR(MP_QSTR_SW_LEFT), MP_ROM_PTR(&pin_GPIO3)},
+    {MP_ROM_QSTR(MP_QSTR_SW_UP), MP_ROM_PTR(&pin_GPIO4)},
+
+    // PicoPad SD Card
+    {MP_ROM_QSTR(MP_QSTR_SD_CS), MP_ROM_PTR(&pin_GPIO13)},
+    {MP_ROM_QSTR(MP_QSTR_SD_SCK), MP_ROM_PTR(&pin_GPIO10)},
+    {MP_ROM_QSTR(MP_QSTR_SD_MOSI), MP_ROM_PTR(&pin_GPIO11)},
+    {MP_ROM_QSTR(MP_QSTR_SD_MISO), MP_ROM_PTR(&pin_GPIO12)},
+
+    // PicoPad Battery
+    {MP_ROM_QSTR(MP_QSTR_BAT_SENSE), MP_ROM_PTR(&pin_GPIO29)},
+
+    // PicoPad UART0
+    {MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_GPIO0)},
+    {MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_GPIO1)},
+
+    // PicoPad I2C0
+    {MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_GPIO0)},
+    {MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_GPIO1)},
+
+    // PicoPad I2C1
+    {MP_ROM_QSTR(MP_QSTR_SDA_ALT), MP_ROM_PTR(&pin_GPIO14)},
+    {MP_ROM_QSTR(MP_QSTR_SCL_ALT), MP_ROM_PTR(&pin_GPIO27)},
+
+
+    {MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj)},
+    {MP_ROM_QSTR(MP_QSTR_I2C_ALT), MP_ROM_PTR(&board_i2c_obj)},
+    {MP_ROM_QSTR(MP_QSTR_UART), MP_ROM_PTR(&board_uart_obj)},
+
+    {MP_ROM_QSTR(MP_QSTR_SMPS_MODE), MP_ROM_PTR(&pin_CYW1)},
+    {MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pin_CYW0)},
+    {MP_ROM_QSTR(MP_QSTR_VBUS_SENSE), MP_ROM_PTR(&pin_CYW2)},
+    {MP_ROM_QSTR(MP_QSTR_DISPLAY), MP_ROM_PTR(&displays[0].display)}
+};
+
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);