217 lines
9.3 KiB
C
217 lines
9.3 KiB
C
// Copyright 2023 Nick Brassel (@tzarc)
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "qp_internal.h"
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#include "qp_comms.h"
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#include "qp_oled_panel.h"
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#include "qp_sh1106.h"
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#include "qp_sh1106_opcodes.h"
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#include "qp_surface.h"
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#include "qp_surface_internal.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Driver storage
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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typedef struct sh1106_device_t {
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oled_panel_painter_device_t oled;
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uint8_t framebuffer[SURFACE_REQUIRED_BUFFER_BYTE_SIZE(128, 64, 1)];
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} sh1106_device_t;
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static sh1106_device_t sh1106_drivers[SH1106_NUM_DEVICES] = {0};
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Quantum Painter API implementations
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// Initialisation
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__attribute__((weak)) bool qp_sh1106_init(painter_device_t device, painter_rotation_t rotation) {
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sh1106_device_t *driver = (sh1106_device_t *)device;
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// Change the surface geometry based on the panel rotation
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if (rotation == QP_ROTATION_90 || rotation == QP_ROTATION_270) {
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driver->oled.surface.base.panel_width = driver->oled.base.panel_height;
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driver->oled.surface.base.panel_height = driver->oled.base.panel_width;
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} else {
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driver->oled.surface.base.panel_width = driver->oled.base.panel_width;
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driver->oled.surface.base.panel_height = driver->oled.base.panel_height;
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}
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// Init the internal surface
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if (!qp_init(&driver->oled.surface.base, QP_ROTATION_0)) {
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qp_dprintf("Failed to init internal surface in qp_sh1106_init\n");
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return false;
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}
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// clang-format off
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uint8_t sh1106_init_sequence[] = {
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// Command, Delay, N, Data[N]
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SH1106_SET_MUX_RATIO, 0, 1, 0x3F,
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SH1106_DISPLAY_OFFSET, 0, 1, 0x00,
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SH1106_DISPLAY_START_LINE, 0, 0,
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SH1106_SET_SEGMENT_REMAP_INV, 0, 0,
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SH1106_COM_SCAN_DIR_DEC, 0, 0,
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SH1106_COM_PADS_HW_CFG, 0, 1, 0x12,
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SH1106_SET_CONTRAST, 0, 1, 0x7F,
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SH1106_ALL_ON_RESUME, 0, 0,
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SH1106_NON_INVERTING_DISPLAY, 0, 0,
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SH1106_SET_OSC_DIVFREQ, 0, 1, 0x80,
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SH1106_SET_CHARGE_PUMP, 0, 1, 0x14,
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SH1106_DISPLAY_ON, 0, 0,
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};
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// clang-format on
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// If the display height is anything other than the default 64 pixels, change SH1106_SET_MUX_RATIO data byte to the correct value
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if (driver->oled.base.panel_height != 64) {
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sh1106_init_sequence[3] = driver->oled.base.panel_height - 1;
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}
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// For 128x32 or 96x16 displays, change SH1106_COM_PADS_HW_CFG data byte from alternative (0x12) to sequential (0x02) configuration
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if (driver->oled.base.panel_height <= 32) {
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sh1106_init_sequence[20] = 0x02;
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}
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qp_comms_bulk_command_sequence(device, sh1106_init_sequence, sizeof(sh1106_init_sequence));
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return true;
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}
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// Screen flush
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bool qp_sh1106_flush(painter_device_t device) {
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sh1106_device_t *driver = (sh1106_device_t *)device;
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if (!driver->oled.surface.dirty.is_dirty) {
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return true;
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}
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switch (driver->oled.base.rotation) {
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default:
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case QP_ROTATION_0:
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qp_oled_panel_page_column_flush_rot0(device, &driver->oled.surface.dirty, driver->framebuffer);
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break;
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case QP_ROTATION_90:
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qp_oled_panel_page_column_flush_rot90(device, &driver->oled.surface.dirty, driver->framebuffer);
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break;
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case QP_ROTATION_180:
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qp_oled_panel_page_column_flush_rot180(device, &driver->oled.surface.dirty, driver->framebuffer);
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break;
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case QP_ROTATION_270:
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qp_oled_panel_page_column_flush_rot270(device, &driver->oled.surface.dirty, driver->framebuffer);
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break;
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}
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// Clear the dirty area
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qp_flush(&driver->oled.surface);
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Driver vtable
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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const oled_panel_painter_driver_vtable_t sh1106_driver_vtable = {
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.base =
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{
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.init = qp_sh1106_init,
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.power = qp_oled_panel_power,
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.clear = qp_oled_panel_clear,
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.flush = qp_sh1106_flush,
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.pixdata = qp_oled_panel_passthru_pixdata,
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.viewport = qp_oled_panel_passthru_viewport,
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.palette_convert = qp_oled_panel_passthru_palette_convert,
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.append_pixels = qp_oled_panel_passthru_append_pixels,
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.append_pixdata = qp_oled_panel_passthru_append_pixdata,
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},
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.opcodes =
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{
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.display_on = SH1106_DISPLAY_ON,
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.display_off = SH1106_DISPLAY_OFF,
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.set_page = SH1106_PAGE_ADDR,
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.set_column_lsb = SH1106_SETCOLUMN_LSB,
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.set_column_msb = SH1106_SETCOLUMN_MSB,
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},
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};
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#ifdef QUANTUM_PAINTER_SH1106_SPI_ENABLE
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// Factory function for creating a handle to the SH1106 device
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painter_device_t qp_sh1106_make_spi_device(uint16_t panel_width, uint16_t panel_height, pin_t chip_select_pin, pin_t dc_pin, pin_t reset_pin, uint16_t spi_divisor, int spi_mode) {
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for (uint32_t i = 0; i < SH1106_NUM_DEVICES; ++i) {
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sh1106_device_t *driver = &sh1106_drivers[i];
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if (!driver->oled.base.driver_vtable) {
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painter_device_t surface = qp_make_mono1bpp_surface_advanced(&driver->oled.surface, 1, panel_width, panel_height, driver->framebuffer);
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if (!surface) {
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return NULL;
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}
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// Setup the OLED device
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driver->oled.base.driver_vtable = (const painter_driver_vtable_t *)&sh1106_driver_vtable;
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driver->oled.base.comms_vtable = (const painter_comms_vtable_t *)&spi_comms_with_dc_vtable;
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driver->oled.base.native_bits_per_pixel = 1; // 1bpp mono
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driver->oled.base.panel_width = panel_width;
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driver->oled.base.panel_height = panel_height;
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driver->oled.base.rotation = QP_ROTATION_0;
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driver->oled.base.offset_x = 0;
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driver->oled.base.offset_y = 0;
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// SPI and other pin configuration
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driver->oled.base.comms_config = &driver->oled.spi_dc_reset_config;
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driver->oled.spi_dc_reset_config.spi_config.chip_select_pin = chip_select_pin;
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driver->oled.spi_dc_reset_config.spi_config.divisor = spi_divisor;
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driver->oled.spi_dc_reset_config.spi_config.lsb_first = false;
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driver->oled.spi_dc_reset_config.spi_config.mode = spi_mode;
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driver->oled.spi_dc_reset_config.dc_pin = dc_pin;
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driver->oled.spi_dc_reset_config.reset_pin = reset_pin;
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driver->oled.spi_dc_reset_config.command_params_uses_command_pin = true;
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if (!qp_internal_register_device((painter_device_t)driver)) {
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memset(driver, 0, sizeof(sh1106_device_t));
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return NULL;
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}
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return (painter_device_t)driver;
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}
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}
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return NULL;
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}
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#endif // QUANTUM_PAINTER_SH1106_SPI_ENABLE
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#ifdef QUANTUM_PAINTER_SH1106_I2C_ENABLE
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// Factory function for creating a handle to the SH1106 device
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painter_device_t qp_sh1106_make_i2c_device(uint16_t panel_width, uint16_t panel_height, uint8_t i2c_address) {
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for (uint32_t i = 0; i < SH1106_NUM_DEVICES; ++i) {
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sh1106_device_t *driver = &sh1106_drivers[i];
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if (!driver->oled.base.driver_vtable) {
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// Instantiate the surface, intentional swap of width/high due to transpose
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painter_device_t surface = qp_make_mono1bpp_surface_advanced(&driver->oled.surface, 1, panel_width, panel_height, driver->framebuffer);
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if (!surface) {
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return NULL;
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}
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// Setup the OLED device
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driver->oled.base.driver_vtable = (const painter_driver_vtable_t *)&sh1106_driver_vtable;
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driver->oled.base.comms_vtable = (const painter_comms_vtable_t *)&i2c_comms_cmddata_vtable;
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driver->oled.base.native_bits_per_pixel = 1; // 1bpp mono
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driver->oled.base.panel_width = panel_width;
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driver->oled.base.panel_height = panel_height;
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driver->oled.base.rotation = QP_ROTATION_0;
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driver->oled.base.offset_x = 0;
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driver->oled.base.offset_y = 0;
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// I2C configuration
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driver->oled.base.comms_config = &driver->oled.i2c_config;
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driver->oled.i2c_config.chip_address = i2c_address;
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if (!qp_internal_register_device((painter_device_t)driver)) {
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memset(driver, 0, sizeof(sh1106_device_t));
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return NULL;
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}
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return (painter_device_t)driver;
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}
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}
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return NULL;
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}
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#endif // QUANTUM_PAINTER_SH1106_I2C_ENABLE
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