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name: Arduino Library CI
on: [pull_request, push, repository_dispatch]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/setup-python@v4
with:
python-version: '3.x'
- uses: actions/checkout@v3
- uses: actions/checkout@v3
with:
repository: adafruit/ci-arduino
path: ci
- name: pre-install
run: bash ci/actions_install.sh
- name: test platforms
run: python3 ci/build_platform.py main_platforms
- name: clang
run: python3 ci/run-clang-format.py -e "ci/*" -e "bin/*" -r .
- name: doxygen
env:
GH_REPO_TOKEN: ${{ secrets.GH_REPO_TOKEN }}
PRETTYNAME : "Adafruit DVI HSTX Arduino Library"
run: bash ci/doxy_gen_and_deploy.sh

0
LICENSE → LICENSE.txt
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55
README.md
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# DVI for HSTX <!-- omit in toc -->
# Adafruit DVI HSTX Library [![Build Status](https://github.com/adafruit/Adafruit-DVI-HSTX/workflows/Arduino%20Library%20CI/badge.svg)](https://github.com/adafruit/Adafruit-DVI-HSTX/actions)[![Documentation](https://github.com/adafruit/ci-arduino/blob/master/assets/doxygen_badge.svg)](http://adafruit.github.io/Adafruit-DVI-HSTX/html/index.html)
This repository is home to the Pimoroni PicoGraphics compatible DVI driver for RP2 chips with HSTX (e.g. RP2350).
This library is based on the [dvhstx library by MichaelBell](https://github.com/MichaelBell/dvhstx)
[![Build Status](https://img.shields.io/github/actions/workflow/status/MichaelBell/dvhstx/micropython.yml?branch=main&label=MicroPython)](https://github.com/MichaelBell/dvhstx/actions/workflows/micropython.yml)
[![GitHub release (latest by date)](https://img.shields.io/github/v/release/MichaelBell/dvhstx)](https://github.com/MichaelBell/dvhstx/releases/latest/)
It is an Arduino library for DVI over HSTX with Adafruit GFX.
- [Introduction](#introduction)
- [Download MicroPython](#download-micropython)
- [Documentation](#documentation)
- [C/C++ Resources](#cc-resources)
- [C/C++ Community Projects](#cc-community-projects)
## Dependencies
* [Adafruit_GFX](https://github.com/adafruit/Adafruit-GFX-Library)
## Introduction
# Contributing
DV HSTX will enable you to create big, bold audio visual projects using MicroPython and an HDMI display of your choice.
Contributions are welcome! Please read our [Code of Conduct](https://github.com/adafruit/Adafruit-DVI-HSTX/blob/main/CODE_OF_CONDUCT.md>)
before contributing to help this project stay welcoming.
![Mandelbrot fractal displayed on a monitor](Mandelbrot.jpg)
## Documentation and doxygen
Documentation is produced by doxygen. Contributions should include documentation for any new code added.
## Download MicroPython
Some examples of how to use doxygen can be found in these guide pages:
TODO
https://learn.adafruit.com/the-well-automated-arduino-library/doxygen
* [DV HSTX MicroPython Releases](https://github.com/MichaelBell/dvhstx/releases)
https://learn.adafruit.com/the-well-automated-arduino-library/doxygen-tips
## Documentation
Written by Jeff Epler for Adafruit Industries.
MIT license, check license.txt for more information
All text above must be included in any redistribution
Wire up your DVI breakout as follows:
GPIO 12 - CK-
GPIO 13 - CK+
GPIO 14 - D0-
GPIO 15 - D0+
GPIO 16 - D1-
GPIO 17 - D1+
GPIO 18 - D2-
GPIO 19 - D2+
If using jumper jerky, twist the - and + wires for each signal together to help with signal integrity.
TODO
## C/C++ Resources
* :link: [C++ Boilerplate](https://github.com/MichaelBell/dvhstx-boilerplate/)
## C/C++ Community Projects
TODO
To install, use the Arduino Library Manager and search for "Adafruit DVI HSTX" and install the library.

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code-of-conduct.md Normal file
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# Adafruit Community Code of Conduct
## Our Pledge
In the interest of fostering an open and welcoming environment, we as
contributors and leaders pledge to making participation in our project and
our community a harassment-free experience for everyone, regardless of age, body
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experience, education, socio-economic status, nationality, personal appearance,
race, religion, or sexual identity and orientation.
## Our Standards
We are committed to providing a friendly, safe and welcoming environment for
all.
Examples of behavior that contributes to creating a positive environment
include:
* Be kind and courteous to others
* Using welcoming and inclusive language
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asked
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We value many things beyond technical expertise, including collaboration and
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Instances of behaviors that violate the Adafruit Community Code of Conduct
may be reported by any member of the community. Community members are
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involving other community members.
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This Code of Conduct and the enforcement policies listed above apply to all
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This Code of Conduct applies both within project spaces and in public spaces
when an individual is representing the project or its community. As a community
member, you are representing our community, and are expected to behave
accordingly.
## Attribution
This Code of Conduct is adapted from the [Contributor Covenant][homepage],
version 1.4, available at
<https://www.contributor-covenant.org/version/1/4/code-of-conduct.html>,
and the [Rust Code of Conduct](https://www.rust-lang.org/en-US/conduct.html).
For other projects adopting the Adafruit Community Code of
Conduct, please contact the maintainers of those projects for enforcement.
If you wish to use this code of conduct for your own project, consider
explicitly mentioning your moderation policy or making a copy with your
own moderation policy so as to avoid confusion.

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examples/00simpletest/00simpletest.ino
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@ -2,24 +2,29 @@
#include <Adafruit_dvhstx.h>
// If your board definition has PIN_CKP and related defines, DVHSTX_PINOUT_DEFAULT is available
// If your board definition has PIN_CKP and related defines,
// DVHSTX_PINOUT_DEFAULT is available
DVHSTX16 display(DVHSTX_PINOUT_DEFAULT, DVHSTX_RESOLUTION_320x240);
// If you get the message "error: 'DVHSTX_PINOUT_DEFAULTx' was not declared" then you need to give
// the pins numbers explicitly, like the example below. The order is: {CKP, D0P, D1P, D2P}
// DVHSTX16 display({12, 14, 16, 18}, DVHSTX_RESOLUTION_320x240);
// If you get the message "error: 'DVHSTX_PINOUT_DEFAULTx' was not declared"
// then you need to give the pins numbers explicitly, like the example below.
// The order is: {CKP, D0P, D1P, D2P} DVHSTX16 display({12, 14, 16, 18},
// DVHSTX_RESOLUTION_320x240);
void setup() {
Serial.begin(115200);
//while(!Serial);
// while(!Serial);
if (!display.begin()) { // Blink LED if insufficient RAM
pinMode(LED_BUILTIN, OUTPUT);
for (;;) digitalWrite(LED_BUILTIN, (millis() / 500) & 1);
for (;;)
digitalWrite(LED_BUILTIN, (millis() / 500) & 1);
}
Serial.println("display initialized");
}
void loop() {
// Draw random lines
display.drawLine(random(display.width()), random(display.height()), random(display.width()), random(display.height()), random(65536));
display.drawLine(random(display.width()), random(display.height()),
random(display.width()), random(display.height()),
random(65536));
sleep_ms(1);
}

19
examples/01palettetest/01palettetest.ino
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@ -2,24 +2,29 @@
#include <Adafruit_dvhstx.h>
// If your board definition has PIN_CKP and related defines, DVHSTX_PINOUT_DEFAULT is available
// If your board definition has PIN_CKP and related defines,
// DVHSTX_PINOUT_DEFAULT is available
DVHSTX8 display(DVHSTX_PINOUT_DEFAULT, DVHSTX_RESOLUTION_640x360);
// If you get the message "error: 'DVHSTX_PINOUT_DEFAULTx' was not declared" then you need to give
// the pins numbers explicitly, like the example below. The order is: {CKP, D0P, D1P, D2P}
// DVHSTX8 display({12, 14, 16, 18}, DVHSTX_RESOLUTION_640x360);
// If you get the message "error: 'DVHSTX_PINOUT_DEFAULTx' was not declared"
// then you need to give the pins numbers explicitly, like the example below.
// The order is: {CKP, D0P, D1P, D2P} DVHSTX8 display({12, 14, 16, 18},
// DVHSTX_RESOLUTION_640x360);
void setup() {
Serial.begin(115200);
//while(!Serial);
// while(!Serial);
if (!display.begin()) { // Blink LED if insufficient RAM
pinMode(LED_BUILTIN, OUTPUT);
for (;;) digitalWrite(LED_BUILTIN, (millis() / 500) & 1);
for (;;)
digitalWrite(LED_BUILTIN, (millis() / 500) & 1);
}
Serial.println("display initialized");
}
void loop() {
// Draw random lines
display.drawLine(random(display.width()), random(display.height()), random(display.width()), random(display.height()), random(65536));
display.drawLine(random(display.width()), random(display.height()),
random(display.width()), random(display.height()),
random(65536));
sleep_ms(1);
}

35
examples/02texttest/02texttest.ino
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@ -12,22 +12,20 @@ DVHSTXText3 display(DVHSTX_PINOUT_DEFAULT);
// DVHSTXText3 display({12, 14, 16, 18});
const static TextColor colors[] = {
TextColor::TEXT_BLACK,
TextColor::TEXT_RED, TextColor::TEXT_GREEN, TextColor::TEXT_BLUE,
TextColor::TEXT_YELLOW, TextColor::TEXT_MAGENTA, TextColor::TEXT_CYAN,
TextColor::TEXT_WHITE,
TextColor::TEXT_BLACK, TextColor::TEXT_RED, TextColor::TEXT_GREEN,
TextColor::TEXT_BLUE, TextColor::TEXT_YELLOW, TextColor::TEXT_MAGENTA,
TextColor::TEXT_CYAN, TextColor::TEXT_WHITE,
};
const static TextColor background_colors[] = {
TextColor::BG_BLACK,
TextColor::BG_RED, TextColor::BG_GREEN, TextColor::BG_BLUE,
TextColor::BG_YELLOW, TextColor::BG_MAGENTA, TextColor::BG_CYAN,
TextColor::BG_WHITE,
TextColor::BG_BLACK, TextColor::BG_RED, TextColor::BG_GREEN,
TextColor::BG_BLUE, TextColor::BG_YELLOW, TextColor::BG_MAGENTA,
TextColor::BG_CYAN, TextColor::BG_WHITE,
};
const static TextColor intensity[] = {
TextColor::ATTR_NORMAL_INTEN, TextColor::ATTR_LOW_INTEN, TextColor::ATTR_V_LOW_INTEN
};
const static TextColor intensity[] = {TextColor::ATTR_NORMAL_INTEN,
TextColor::ATTR_LOW_INTEN,
TextColor::ATTR_V_LOW_INTEN};
void setup() {
Serial.begin(115200);
@ -40,18 +38,19 @@ void setup() {
display.clear();
display.showCursor();
display.print("display initialized (black on white background)\n\n\n\n\n");
display.println("line wrap test. one line should be full of 'w's and the next line should start 'xy'.");
display.println("line wrap test. one line should be full of 'w's and the "
"next line should start 'xy'.");
for (int i = 0; i < display.width(); i++)
display.write('w');
display.println("xy");
display.println("\n\nAttribute test\n");
display.print(" ");
for (int d : background_colors) {
display.printf(" %d ri vli ", (int)d >> 3 );
}
display.printf(" %d ri vli ", (int)d >> 3);
}
display.write('\n');
for (TextColor c : colors) {
display.printf(" %d ", (int)c);
display.printf(" %d ", (int)c);
for (TextColor d : background_colors) {
display.setColor(c, d);
display.write('*');
@ -83,10 +82,12 @@ void loop() {
auto fg_idx = random(std::size(colors));
auto bg_idx = random(std::size(colors)) - 1;
auto inten_idx = random(std::size(intensity));
if(bg_idx == fg_idx) bg_idx ++; // never bg == fg
if (bg_idx == fg_idx)
bg_idx++; // never bg == fg
for (int j = random(6); j; j--)
display.write(' ');
display.setColor(colors[fg_idx], background_colors[bg_idx], intensity[inten_idx]);
display.setColor(colors[fg_idx], background_colors[bg_idx],
intensity[inten_idx]);
for (int j = random(6); j; j--)
display.write(' ');
}

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keywords.txt Normal file
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#######################################
# Syntax Coloring Map for DVI HSTX library
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
#######################################
# Methods and Functions (KEYWORD2)
#######################################
#######################################
# Structures (KEYWORD3)
#######################################
######################################
# Constants (LITERAL1)
#######################################

2
library.properties
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@ -1,5 +1,5 @@
name=Adafruit DVI HSTX
version=0.1.0
version=1.0.0
author=Jeff Epler
maintainer=Adafruit <info@adafruit.com>
sentence=Arduino library for RP2350 DVI output, based on dvhstx

8
src/Adafruit_dvhstx.cpp
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@ -79,12 +79,13 @@ void DVHSTX8::swap(bool copy_framebuffer) {
}
void DVHSTXText3::clear() {
std::fill(getBuffer(), getBuffer() + WIDTH*HEIGHT, attr << 8);
std::fill(getBuffer(), getBuffer() + WIDTH * HEIGHT, attr << 8);
}
// Character framebuffer is actually a small GFXcanvas16, so...
size_t DVHSTXText3::write(uint8_t c) {
if (!*this) return 0;
if (!*this)
return 0;
if (c == '\r') { // Carriage return
cursor_x = 0;
@ -95,7 +96,8 @@ size_t DVHSTXText3::write(uint8_t c) {
if (cursor_y >= (HEIGHT - 1)) { // Vert scroll?
memmove(getBuffer(), getBuffer() + WIDTH,
WIDTH * (HEIGHT - 1) * sizeof(uint16_t));
drawFastHLine(0, HEIGHT - 1, WIDTH, ' ' | (attr << 8)); // Clear bottom line
drawFastHLine(0, HEIGHT - 1, WIDTH,
' ' | (attr << 8)); // Clear bottom line
cursor_y = HEIGHT - 1;
} else {
cursor_y++;

6
src/Adafruit_dvhstx.h
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@ -195,7 +195,10 @@ public:
void clear();
void setColor(uint8_t a) { attr = a; }
void setColor(TextColor fg, TextColor bg, TextColor inten = TextColor::ATTR_NORMAL_INTEN) { attr = fg | bg | inten; }
void setColor(TextColor fg, TextColor bg,
TextColor inten = TextColor::ATTR_NORMAL_INTEN) {
attr = fg | bg | inten;
}
void hideCursor() {
cursor_visible = false;
@ -225,6 +228,7 @@ public:
int getCursorX() const { return cursor_x; }
int getCursorY() const { return cursor_y; }
private:
DVHSTXPinout pinout;
DVHSTXResolution res;

1408
src/drivers/dvhstx/dvhstx.cpp
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295
src/drivers/dvhstx/dvhstx.hpp
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@ -2,156 +2,167 @@
#include <string.h>
#include "pico/stdlib.h"
#include "hardware/gpio.h"
#include "pico/stdlib.h"
// DVI HSTX driver for use with Pimoroni PicoGraphics
namespace pimoroni {
struct DVHSTXPinout {
uint8_t clk_p, rgb_p[3];
struct DVHSTXPinout {
uint8_t clk_p, rgb_p[3];
};
typedef uint32_t RGB888;
// Digital Video using HSTX
// Valid screen modes are:
// Pixel doubled: 640x480 (60Hz), 720x480 (60Hz), 720x400 (70Hz), 720x576
// (50Hz),
// 800x600 (60Hz), 800x480 (60Hz), 800x450 (60Hz), 960x540
// (60Hz), 1024x768 (60Hz)
// Pixel doubled or quadrupled: 1280x720 (50Hz)
//
// Giving valid resolutions:
// 320x180, 640x360 (well supported, square pixels on a 16:9 display)
// 480x270, 400x225 (sometimes supported, square pixels on a 16:9 display)
// 320x240, 360x240, 360x200, 360x288, 400x300, 512x384 (well supported, but
// pixels aren't square) 400x240 (sometimes supported, pixels aren't square)
//
// Note that the double buffer is in RAM, so 640x360 uses almost all of the
// available RAM.
class DVHSTX {
public:
static constexpr int PALETTE_SIZE = 256;
enum Mode {
MODE_PALETTE = 2,
MODE_RGB565 = 1,
MODE_RGB888 = 3,
MODE_TEXT_MONO = 4,
MODE_TEXT_RGB111 = 5,
};
typedef uint32_t RGB888;
enum TextColour {
TEXT_BLACK = 0,
TEXT_RED,
TEXT_GREEN,
TEXT_BLUE,
TEXT_YELLOW,
TEXT_MAGENTA,
TEXT_CYAN,
TEXT_WHITE,
// Digital Video using HSTX
// Valid screen modes are:
// Pixel doubled: 640x480 (60Hz), 720x480 (60Hz), 720x400 (70Hz), 720x576 (50Hz),
// 800x600 (60Hz), 800x480 (60Hz), 800x450 (60Hz), 960x540 (60Hz), 1024x768 (60Hz)
// Pixel doubled or quadrupled: 1280x720 (50Hz)
//
// Giving valid resolutions:
// 320x180, 640x360 (well supported, square pixels on a 16:9 display)
// 480x270, 400x225 (sometimes supported, square pixels on a 16:9 display)
// 320x240, 360x240, 360x200, 360x288, 400x300, 512x384 (well supported, but pixels aren't square)
// 400x240 (sometimes supported, pixels aren't square)
//
// Note that the double buffer is in RAM, so 640x360 uses almost all of the available RAM.
class DVHSTX {
public:
static constexpr int PALETTE_SIZE = 256;
BG_BLACK = 0,
BG_RED = TEXT_RED << 3,
BG_GREEN = TEXT_GREEN << 3,
BG_BLUE = TEXT_BLUE << 3,
BG_YELLOW = TEXT_YELLOW << 3,
BG_MAGENTA = TEXT_MAGENTA << 3,
BG_CYAN = TEXT_CYAN << 3,
BG_WHITE = TEXT_WHITE << 3,
enum Mode {
MODE_PALETTE = 2,
MODE_RGB565 = 1,
MODE_RGB888 = 3,
MODE_TEXT_MONO = 4,
MODE_TEXT_RGB111 = 5,
};
enum TextColour {
TEXT_BLACK = 0,
TEXT_RED,
TEXT_GREEN,
TEXT_BLUE,
TEXT_YELLOW,
TEXT_MAGENTA,
TEXT_CYAN,
TEXT_WHITE,
BG_BLACK = 0,
BG_RED = TEXT_RED << 3,
BG_GREEN = TEXT_GREEN << 3,
BG_BLUE = TEXT_BLUE << 3,
BG_YELLOW = TEXT_YELLOW << 3,
BG_MAGENTA = TEXT_MAGENTA << 3,
BG_CYAN = TEXT_CYAN << 3,
BG_WHITE = TEXT_WHITE << 3,
ATTR_NORMAL_INTEN = 0,
ATTR_LOW_INTEN = 1 << 6,
ATTR_V_LOW_INTEN = 1 << 7 | ATTR_LOW_INTEN,
};
//--------------------------------------------------
// Variables
//--------------------------------------------------
protected:
friend void vsync_callback();
uint16_t display_width = 320;
uint16_t display_height = 180;
uint16_t frame_width = 320;
uint16_t frame_height = 180;
uint8_t frame_bytes_per_pixel = 2;
uint8_t h_repeat = 4;
uint8_t v_repeat = 4;
Mode mode = MODE_RGB565;
public:
DVHSTX();
//--------------------------------------------------
// Methods
//--------------------------------------------------
public:
bool get_single_buffered() { return frame_buffer_display && frame_buffer_display == frame_buffer_back; }
bool get_double_buffered() { return frame_buffer_display && frame_buffer_display != frame_buffer_back; }
template<class T>
T *get_back_buffer() { return (T*)(frame_buffer_back); }
template<class T>
T *get_front_buffer() { return (T*)(frame_buffer_display); }
uint16_t get_width() const { return frame_width; }
uint16_t get_height() const { return frame_height; }
RGB888* get_palette();
bool init(uint16_t width, uint16_t height, Mode mode, bool double_buffered, const DVHSTXPinout &pinout);
void reset();
// Wait for vsync and then flip the buffers
void flip_blocking();
// Flip immediately without waiting for vsync
void flip_now();
void wait_for_vsync();
// flip_async queues a flip to happen next vsync but returns without blocking.
// You should call wait_for_flip before doing any more reads or writes, defining sprites, etc.
void flip_async();
void wait_for_flip();
// DMA handlers, should not be called externally
void gfx_dma_handler();
void text_dma_handler();
void set_cursor(int x, int y) { cursor_x = x; cursor_y = y; }
void cursor_off(void) { cursor_y = -1; }
private:
RGB888 palette[PALETTE_SIZE];
bool double_buffered;
uint8_t* frame_buffer_display;
uint8_t* frame_buffer_back;
uint32_t* font_cache = nullptr;
void display_setup_clock();
// DMA scanline filling
uint ch_num = 0;
int line_num = -1;
volatile int v_scanline = 2;
volatile bool flip_next;
bool inited = false;
uint32_t* line_buffers;
const struct dvi_timing* timing_mode;
int v_inactive_total;
int v_total_active_lines;
uint h_repeat_shift;
uint v_repeat_shift;
int line_bytes_per_pixel;
uint32_t* display_palette = nullptr;
int cursor_x, cursor_y;
ATTR_NORMAL_INTEN = 0,
ATTR_LOW_INTEN = 1 << 6,
ATTR_V_LOW_INTEN = 1 << 7 | ATTR_LOW_INTEN,
};
}
//--------------------------------------------------
// Variables
//--------------------------------------------------
protected:
friend void vsync_callback();
uint16_t display_width = 320;
uint16_t display_height = 180;
uint16_t frame_width = 320;
uint16_t frame_height = 180;
uint8_t frame_bytes_per_pixel = 2;
uint8_t h_repeat = 4;
uint8_t v_repeat = 4;
Mode mode = MODE_RGB565;
public:
DVHSTX();
//--------------------------------------------------
// Methods
//--------------------------------------------------
public:
bool get_single_buffered() {
return frame_buffer_display && frame_buffer_display == frame_buffer_back;
}
bool get_double_buffered() {
return frame_buffer_display && frame_buffer_display != frame_buffer_back;
}
template <class T> T *get_back_buffer() { return (T *)(frame_buffer_back); }
template <class T> T *get_front_buffer() {
return (T *)(frame_buffer_display);
}
uint16_t get_width() const { return frame_width; }
uint16_t get_height() const { return frame_height; }
RGB888 *get_palette();
bool init(uint16_t width, uint16_t height, Mode mode, bool double_buffered,
const DVHSTXPinout &pinout);
void reset();
// Wait for vsync and then flip the buffers
void flip_blocking();
// Flip immediately without waiting for vsync
void flip_now();
void wait_for_vsync();
// flip_async queues a flip to happen next vsync but returns without blocking.
// You should call wait_for_flip before doing any more reads or writes,
// defining sprites, etc.
void flip_async();
void wait_for_flip();
// DMA handlers, should not be called externally
void gfx_dma_handler();
void text_dma_handler();
void set_cursor(int x, int y) {
cursor_x = x;
cursor_y = y;
}
void cursor_off(void) { cursor_y = -1; }
private:
RGB888 palette[PALETTE_SIZE];
bool double_buffered;
uint8_t *frame_buffer_display;
uint8_t *frame_buffer_back;
uint32_t *font_cache = nullptr;
void display_setup_clock();
// DMA scanline filling
uint ch_num = 0;
int line_num = -1;
volatile int v_scanline = 2;
volatile bool flip_next;
bool inited = false;
uint32_t *line_buffers;
const struct dvi_timing *timing_mode;
int v_inactive_total;
int v_total_active_lines;
uint h_repeat_shift;
uint v_repeat_shift;
int line_bytes_per_pixel;
uint32_t *display_palette = nullptr;
int cursor_x, cursor_y;
};
} // namespace pimoroni

366
src/drivers/dvhstx/dvi.cpp
View file

@ -3,263 +3,239 @@
#include "dvi.hpp"
// VGA -- we do this mode properly, with a pretty comfortable clk_sys (252 MHz)
const struct dvi_timing dvi_timing_640x480p_60hz = {
.h_sync_polarity = false,
.h_front_porch = 16,
.h_sync_width = 96,
.h_back_porch = 48,
.h_active_pixels = 640,
const struct dvi_timing dvi_timing_640x480p_60hz = {.h_sync_polarity = false,
.h_front_porch = 16,
.h_sync_width = 96,
.h_back_porch = 48,
.h_active_pixels = 640,
.v_sync_polarity = false,
.v_front_porch = 10,
.v_sync_width = 2,
.v_back_porch = 33,
.v_active_lines = 480,
.v_sync_polarity = false,
.v_front_porch = 10,
.v_sync_width = 2,
.v_back_porch = 33,
.v_active_lines = 480,
.bit_clk_khz = 252000
};
.bit_clk_khz = 252000};
// SVGA -- completely by-the-book but requires 400 MHz clk_sys
const struct dvi_timing dvi_timing_800x600p_60hz = {
.h_sync_polarity = false,
.h_front_porch = 44,
.h_sync_width = 128,
.h_back_porch = 88,
.h_active_pixels = 800,
const struct dvi_timing dvi_timing_800x600p_60hz = {.h_sync_polarity = false,
.h_front_porch = 44,
.h_sync_width = 128,
.h_back_porch = 88,
.h_active_pixels = 800,
.v_sync_polarity = false,
.v_front_porch = 1,
.v_sync_width = 4,
.v_back_porch = 23,
.v_active_lines = 600,
.v_sync_polarity = false,
.v_front_porch = 1,
.v_sync_width = 4,
.v_back_porch = 23,
.v_active_lines = 600,
.bit_clk_khz = 400000
};
.bit_clk_khz = 400000};
// 720x480 - timings from dumping the EDID of my monitor
const struct dvi_timing dvi_timing_720x480p_60hz = {
.h_sync_polarity = false,
.h_front_porch = 16,
.h_sync_width = 62,
.h_back_porch = 60,
.h_active_pixels = 720,
const struct dvi_timing dvi_timing_720x480p_60hz = {.h_sync_polarity = false,
.h_front_porch = 16,
.h_sync_width = 62,
.h_back_porch = 60,
.h_active_pixels = 720,
.v_sync_polarity = false,
.v_front_porch = 9,
.v_sync_width = 6,
.v_back_porch = 30,
.v_active_lines = 480,
.v_sync_polarity = false,
.v_front_porch = 9,
.v_sync_width = 6,
.v_back_porch = 30,
.v_active_lines = 480,
.bit_clk_khz = 270000
};
.bit_clk_khz = 270000};
// 720x576@50Hz - CEA timing
const struct dvi_timing dvi_timing_720x576p_50hz = {
.h_sync_polarity = false,
.h_front_porch = 12,
.h_sync_width = 64,
.h_back_porch = 68,
.h_active_pixels = 720,
const struct dvi_timing dvi_timing_720x576p_50hz = {.h_sync_polarity = false,
.h_front_porch = 12,
.h_sync_width = 64,
.h_back_porch = 68,
.h_active_pixels = 720,
.v_sync_polarity = false,
.v_front_porch = 5,
.v_sync_width = 5,
.v_back_porch = 39,
.v_active_lines = 576,
.v_sync_polarity = false,
.v_front_porch = 5,
.v_sync_width = 5,
.v_back_porch = 39,
.v_active_lines = 576,
.bit_clk_khz = 270000
};
.bit_clk_khz = 270000};
// 720x400@70Hz - "IBM" timing
const struct dvi_timing dvi_timing_720x400p_70hz = {
.h_sync_polarity = false,
.h_front_porch = 18,
.h_sync_width = 108,
.h_back_porch = 54,
.h_active_pixels = 720,
const struct dvi_timing dvi_timing_720x400p_70hz = {.h_sync_polarity = false,
.h_front_porch = 18,
.h_sync_width = 108,
.h_back_porch = 54,
.h_active_pixels = 720,
.v_sync_polarity = true,
.v_front_porch = 13,
.v_sync_width = 2,
.v_back_porch = 34,
.v_active_lines = 400,
.v_sync_polarity = true,
.v_front_porch = 13,
.v_sync_width = 2,
.v_back_porch = 34,
.v_active_lines = 400,
.bit_clk_khz = 283200
};
.bit_clk_khz = 283200};
// 800x480p 60 Hz (note this doesn't seem to be a CEA mode, I just used the
// output of `cvt 800 480 60`), 295 MHz bit clock
const struct dvi_timing dvi_timing_800x480p_60hz = {
.h_sync_polarity = false,
.h_front_porch = 24,
.h_sync_width = 72,
.h_back_porch = 96,
.h_active_pixels = 800,
const struct dvi_timing dvi_timing_800x480p_60hz = {.h_sync_polarity = false,
.h_front_porch = 24,
.h_sync_width = 72,
.h_back_porch = 96,
.h_active_pixels = 800,
.v_sync_polarity = true,
.v_front_porch = 3,
.v_sync_width = 10,
.v_back_porch = 7,
.v_active_lines = 480,
.v_sync_polarity = true,
.v_front_porch = 3,
.v_sync_width = 10,
.v_back_porch = 7,
.v_active_lines = 480,
.bit_clk_khz = 295200
};
.bit_clk_khz = 295200};
// 800x450p 60 Hz Similarly not a CEA mode, but is 16:9
const struct dvi_timing dvi_timing_800x450p_60hz = {
.h_sync_polarity = false,
.h_front_porch = 24,
.h_sync_width = 72,
.h_back_porch = 96,
.h_active_pixels = 800,
const struct dvi_timing dvi_timing_800x450p_60hz = {.h_sync_polarity = false,
.h_front_porch = 24,
.h_sync_width = 72,
.h_back_porch = 96,
.h_active_pixels = 800,
.v_sync_polarity = true,
.v_front_porch = 3,
.v_sync_width = 5,
.v_back_porch = 10,
.v_active_lines = 450,
.v_sync_polarity = true,
.v_front_porch = 3,
.v_sync_width = 5,
.v_back_porch = 10,
.v_active_lines = 450,
.bit_clk_khz = 278400
};
.bit_clk_khz = 278400};
// SVGA reduced blanking (355 MHz bit clock) -- valid CVT mode, less common
// than fully-blanked SVGA, but doesn't require such a high system clock
const struct dvi_timing dvi_timing_800x600p_reduced_60hz = {
.h_sync_polarity = true,
.h_front_porch = 48,
.h_sync_width = 32,
.h_back_porch = 80,
.h_active_pixels = 800,
.h_sync_polarity = true,
.h_front_porch = 48,
.h_sync_width = 32,
.h_back_porch = 80,
.h_active_pixels = 800,
.v_sync_polarity = false,
.v_front_porch = 3,
.v_sync_width = 4,
.v_back_porch = 11,
.v_active_lines = 600,
.v_sync_polarity = false,
.v_front_porch = 3,
.v_sync_width = 4,
.v_back_porch = 11,
.v_active_lines = 600,
.bit_clk_khz = 354000
};
.bit_clk_khz = 354000};
// Also known as qHD, bit uncommon, but it's a nice modest-resolution 16:9
// aspect mode. Pixel clock 40.75 MHz for full CVT mode (no reduced blanking)
const struct dvi_timing dvi_timing_960x540p_60hz = {
.h_sync_polarity = false,
.h_front_porch = 32,
.h_sync_width = 96,
.h_back_porch = 128,
.h_active_pixels = 960,
const struct dvi_timing dvi_timing_960x540p_60hz = {.h_sync_polarity = false,
.h_front_porch = 32,
.h_sync_width = 96,
.h_back_porch = 128,
.h_active_pixels = 960,
.v_sync_polarity = true,
.v_front_porch = 3,
.v_sync_width = 5,
.v_back_porch = 14,
.v_active_lines = 540,
.v_sync_polarity = true,
.v_front_porch = 3,
.v_sync_width = 5,
.v_back_porch = 14,
.v_active_lines = 540,
.bit_clk_khz = 408000
};
.bit_clk_khz = 408000};
// Also known as qHD, bit uncommon, but it's a nice modest-resolution 16:9
// aspect mode. Pixel clock 33.5 MHz for 50Hz CVT mode (no reduced blanking)
const struct dvi_timing dvi_timing_960x540p_50hz = {
.h_sync_polarity = false,
.h_front_porch = 24,
.h_sync_width = 96,
.h_back_porch = 120,
.h_active_pixels = 960,
const struct dvi_timing dvi_timing_960x540p_50hz = {.h_sync_polarity = false,
.h_front_porch = 24,
.h_sync_width = 96,
.h_back_porch = 120,
.h_active_pixels = 960,
.v_sync_polarity = true,
.v_front_porch = 3,
.v_sync_width = 5,
.v_back_porch = 11,
.v_active_lines = 540,
.v_sync_polarity = true,
.v_front_porch = 3,
.v_sync_width = 5,
.v_back_porch = 11,
.v_active_lines = 540,
.bit_clk_khz = 336000
};
.bit_clk_khz = 336000};
// 1024x768, CVT-RB
const struct dvi_timing dvi_timing_1024x768_rb_60hz = {
.h_sync_polarity = true,
.h_front_porch = 48,
.h_sync_width = 32,
.h_back_porch = 80,
.h_active_pixels = 1024,
const struct dvi_timing dvi_timing_1024x768_rb_60hz = {.h_sync_polarity = true,
.h_front_porch = 48,
.h_sync_width = 32,
.h_back_porch = 80,
.h_active_pixels = 1024,
.v_sync_polarity = false,
.v_front_porch = 3,
.v_sync_width = 4,
.v_back_porch = 15,
.v_active_lines = 768,
.v_sync_polarity = false,
.v_front_porch = 3,
.v_sync_width = 4,
.v_back_porch = 15,
.v_active_lines = 768,
.bit_clk_khz = 560000
};
.bit_clk_khz = 560000};
// 720p50, this is a standard HD mode, the CVT-RB variant
// should be widely supported
const struct dvi_timing dvi_timing_1280x720p_rb_50hz = {
.h_sync_polarity = true,
.h_front_porch = 48,
.h_sync_width = 32,
.h_back_porch = 80,
.h_active_pixels = 1280,
const struct dvi_timing dvi_timing_1280x720p_rb_50hz = {.h_sync_polarity = true,
.h_front_porch = 48,
.h_sync_width = 32,
.h_back_porch = 80,
.h_active_pixels = 1280,
.v_sync_polarity = false,
.v_front_porch = 3,
.v_sync_width = 5,
.v_back_porch = 9,
.v_active_lines = 720,
.v_sync_polarity =
false,
.v_front_porch = 3,
.v_sync_width = 5,
.v_back_porch = 9,
.v_active_lines = 720,
.bit_clk_khz = 528000
};
.bit_clk_khz = 528000};
// 720p60, this is the CVT-RB variant, again should be widely supported
const struct dvi_timing dvi_timing_1280x720p_rb_60hz = {
.h_sync_polarity = true,
.h_front_porch = 48,
.h_sync_width = 32,
.h_back_porch = 80,
.h_active_pixels = 1280,
const struct dvi_timing dvi_timing_1280x720p_rb_60hz = {.h_sync_polarity = true,
.h_front_porch = 48,
.h_sync_width = 32,
.h_back_porch = 80,
.h_active_pixels = 1280,
.v_sync_polarity = false,
.v_front_porch = 3,
.v_sync_width = 5,
.v_back_porch = 13,
.v_active_lines = 720,
.v_sync_polarity =
false,
.v_front_porch = 3,
.v_sync_width = 5,
.v_back_porch = 13,
.v_active_lines = 720,
.bit_clk_khz = 640000
};
.bit_clk_khz = 640000};
// 1080p30 - not a normal mode but seems to work on a wide variety of hardware
// Strictly speaking RB2 should have a clock speed matching the target frequency more closely
// but it seems to work!
// Strictly speaking RB2 should have a clock speed matching the target frequency
// more closely but it seems to work!
const struct dvi_timing dvi_timing_1920x1080p_rb2_30hz = {
.h_sync_polarity = true,
.h_front_porch = 8,
.h_sync_width = 32,
.h_back_porch = 40,
.h_active_pixels = 1920,
.h_sync_polarity = true,
.h_front_porch = 8,
.h_sync_width = 32,
.h_back_porch = 40,
.h_active_pixels = 1920,
.v_sync_polarity = false,
.v_front_porch = 7,
.v_sync_width = 8,
.v_back_porch = 6,
.v_active_lines = 1080,
.v_sync_polarity = false,
.v_front_porch = 7,
.v_sync_width = 8,
.v_back_porch = 6,
.v_active_lines = 1080,
.bit_clk_khz = 660000
};
.bit_clk_khz = 660000};
// 1440p24 YOLO - works on my Dell Ultrasharp, that most forgiving of monitors. May require a little more than 1.3V
// 1440p24 YOLO - works on my Dell Ultrasharp, that most forgiving of monitors.
// May require a little more than 1.3V
const struct dvi_timing dvi_timing_2560x1440p_yolo_24hz = {
.h_sync_polarity = true,
.h_front_porch = 8,
.h_sync_width = 32,
.h_back_porch = 20,
.h_active_pixels = 2560,
.h_sync_polarity = true,
.h_front_porch = 8,
.h_sync_width = 32,
.h_back_porch = 20,
.h_active_pixels = 2560,
.v_sync_polarity = false,
.v_front_porch = 2,
.v_sync_width = 6,
.v_back_porch = 2,
.v_active_lines = 1440,
.v_sync_polarity = false,
.v_front_porch = 2,
.v_sync_width = 6,
.v_back_porch = 2,
.v_active_lines = 1440,
.bit_clk_khz = 912000
};
.bit_clk_khz = 912000};

44
src/drivers/dvhstx/dvi.hpp
View file

@ -8,7 +8,7 @@
#define TMDS_CTRL_10 0x154u
#define TMDS_CTRL_11 0x2abu
#define TMDS_BALANCED_LOW 0x307u
#define TMDS_BALANCED_LOW 0x307u
#define TMDS_BALANCED_HIGH 0x2f0u
#define TMDS_BLACK_A 0x100u
@ -18,31 +18,35 @@
#define SYNC_V0_H1 (TMDS_CTRL_01 | (TMDS_CTRL_00 << 10) | (TMDS_CTRL_00 << 20))
#define SYNC_V1_H0 (TMDS_CTRL_10 | (TMDS_CTRL_00 << 10) | (TMDS_CTRL_00 << 20))
#define SYNC_V1_H1 (TMDS_CTRL_11 | (TMDS_CTRL_00 << 10) | (TMDS_CTRL_00 << 20))
#define MISSING_PIXEL (TMDS_BALANCED_LOW | (TMDS_BALANCED_LOW << 10) | (TMDS_BALANCED_HIGH << 20))
#define BLACK_PIXEL (TMDS_BALANCED_LOW | (TMDS_BALANCED_LOW << 10) | (TMDS_BALANCED_LOW << 20))
#define BLACK_PIXEL_A (TMDS_BLACK_A | (TMDS_BLACK_A << 10) | (TMDS_BLACK_A << 20))
#define BLACK_PIXEL_B (TMDS_BLACK_B | (TMDS_BLACK_B << 10) | (TMDS_BLACK_B << 20))
#define MISSING_PIXEL \
(TMDS_BALANCED_LOW | (TMDS_BALANCED_LOW << 10) | (TMDS_BALANCED_HIGH << 20))
#define BLACK_PIXEL \
(TMDS_BALANCED_LOW | (TMDS_BALANCED_LOW << 10) | (TMDS_BALANCED_LOW << 20))
#define BLACK_PIXEL_A \
(TMDS_BLACK_A | (TMDS_BLACK_A << 10) | (TMDS_BLACK_A << 20))
#define BLACK_PIXEL_B \
(TMDS_BLACK_B | (TMDS_BLACK_B << 10) | (TMDS_BLACK_B << 20))
#define HSTX_CMD_RAW (0x0u << 12)
#define HSTX_CMD_RAW_REPEAT (0x1u << 12)
#define HSTX_CMD_TMDS (0x2u << 12)
#define HSTX_CMD_RAW (0x0u << 12)
#define HSTX_CMD_RAW_REPEAT (0x1u << 12)
#define HSTX_CMD_TMDS (0x2u << 12)
#define HSTX_CMD_TMDS_REPEAT (0x3u << 12)
#define HSTX_CMD_NOP (0xfu << 12)
#define HSTX_CMD_NOP (0xfu << 12)
struct dvi_timing {
bool h_sync_polarity;
int h_front_porch;
int h_sync_width;
int h_back_porch;
int h_active_pixels;
bool h_sync_polarity;
int h_front_porch;
int h_sync_width;
int h_back_porch;
int h_active_pixels;
bool v_sync_polarity;
int v_front_porch;
int v_sync_width;
int v_back_porch;
int v_active_lines;
bool v_sync_polarity;
int v_front_porch;
int v_sync_width;
int v_back_porch;
int v_active_lines;
uint bit_clk_khz;
uint bit_clk_khz;
};
extern const struct dvi_timing dvi_timing_640x480p_60hz;

30
src/drivers/dvhstx/font.h
View file

@ -10,33 +10,31 @@
#include "pico/types.h"
typedef struct {
uint16_t bitmap_index;
uint16_t adv_w;
int8_t box_w, box_h, ofs_x, ofs_y;
uint16_t bitmap_index;
uint16_t adv_w;
int8_t box_w, box_h, ofs_x, ofs_y;
} __attribute__((packed)) lv_font_fmt_txt_glyph_dsc_t;
typedef struct {
uint16_t range_start, range_length, glyph_id_start, list_length;
void *unicode_list, *glyph_id_ofs_list;
enum {
LV_FONT_FMT_TXT_CMAP_FORMAT0_TINY
} type;
uint16_t range_start, range_length, glyph_id_start, list_length;
void *unicode_list, *glyph_id_ofs_list;
enum { LV_FONT_FMT_TXT_CMAP_FORMAT0_TINY } type;
} lv_font_fmt_txt_cmap_t;
typedef struct {
const uint8_t *glyph_bitmap;
const lv_font_fmt_txt_glyph_dsc_t *glyph_dsc;
const lv_font_fmt_txt_cmap_t *cmaps;
uint8_t cmap_num, bpp, kern_scale, kern_classes;
void *kern_dsc;
const uint8_t *glyph_bitmap;
const lv_font_fmt_txt_glyph_dsc_t *glyph_dsc;
const lv_font_fmt_txt_cmap_t *cmaps;
uint8_t cmap_num, bpp, kern_scale, kern_classes;
void *kern_dsc;
} lv_font_fmt_txt_dsc_t;
typedef struct {
lv_font_fmt_txt_dsc_t *dsc;
uint8_t line_height, base_line;
lv_font_fmt_txt_dsc_t *dsc;
uint8_t line_height, base_line;
} lv_font_t;
#define FONT_HEIGHT 23
extern const lv_font_t intel_one_mono;
#endif //SOFTWARE_FONT_H
#endif // SOFTWARE_FONT_H

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src/drivers/dvhstx/intel_one_mono_2bpp.c
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