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Code Releases Activity

Some updates (keypad, IR sensor firmware)

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whowechina 2023-08-13 22:48:55 +08:00
parent b50ce783ef
commit e3d7eb6d19
52 changed files with 26609 additions and 1864 deletions
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build
pico-examples
pico-sdk
.vscode

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firmware/CMakeLists.txt Normal file
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cmake_minimum_required(VERSION 3.12)
# Pull in SDK (must set be before project)
include(pico_sdk_import.cmake)
project(iidx_pico C CXX ASM)
set(CMAKE_C_STANDARD 11)
pico_sdk_init()
add_subdirectory(src)
add_subdirectory(lib/pico-mpr121 mpr121)

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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
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10
firmware/README.md Normal file
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@ -0,0 +1,10 @@
# IIDX Pico Firmware
Features:
* 1000Hz polling rate.
* HID lights.
* RGB turntable.
* Configuration save.
* Customizable through board_defs.h
* Dymanic settings.

17
firmware/lib/pico-mpr121/CMakeLists.txt Normal file
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add_library(pico-mpr121 INTERFACE)
target_include_directories(pico-mpr121
INTERFACE
${CMAKE_CURRENT_LIST_DIR}/include
)
target_link_libraries(pico-mpr121
INTERFACE
hardware_i2c
)
target_sources(pico-mpr121
INTERFACE
${CMAKE_CURRENT_LIST_DIR}/mpr121.c
${CMAKE_CURRENT_LIST_DIR}/include/mpr121.h
)

363
firmware/lib/pico-mpr121/include/mpr121.h Normal file
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/*
* Copyright (c) 2021-2022 Antonio González
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef _MPR121_H_
#define _MPR121_H_
#include "pico.h"
#include "hardware/i2c.h"
/** \file mpr121.h
* \brief Library for using an MPR121-based touch sensor with the
* Raspberry Pi Pico
*
*/
typedef struct mpr121_sensor {
i2c_inst_t *i2c_port;
uint8_t i2c_addr;
// uint8_t i2c_sda;
// uint8_t ic2_scl;
} mpr121_sensor_t;
/*! \brief MPR121 register map
*/
enum mpr121_register {
MPR121_TOUCH_STATUS_REG = 0x00u,
MPR121_OUT_OF_RANGE_STATUS_0_REG = 0x02u,
MPR121_OUT_OF_RANGE_STATUS_1_REG = 0x03u,
MPR121_ELECTRODE_FILTERED_DATA_REG = 0x04u,
MPR121_BASELINE_VALUE_REG = 0x1Eu,
// Registers 0x2B ~ 0x7F are control and configuration registers
MPR121_MAX_HALF_DELTA_RISING_REG = 0x2Bu,
MPR121_NOISE_HALF_DELTA_RISING_REG = 0x2Cu,
MPR121_NOISE_COUNT_LIMIT_RISING_REG = 0x2Du,
MPR121_FILTER_DELAY_COUNT_RISING_REG = 0x2Eu,
MPR121_MAX_HALF_DELTA_FALLING_REG = 0x2Fu,
MPR121_NOISE_HALF_DELTA_FALLING_REG = 0x30u,
MPR121_NOISE_COUNT_LIMIT_FALLING_REG = 0x31u,
MPR121_FILTER_DELAY_COUNT_FALLING_REG = 0x32u,
MPR121_NOISE_HALF_DELTA_TOUCHED_REG = 0x33u,
MPR121_NOISE_COUNT_LIMIT_TOUCHED_REG = 0x34u,
MPR121_FILTER_DELAY_COUNT_TOUCHED_REG = 0x35u,
// (ELEPROX 0x36 .. 0x40)
MPR121_TOUCH_THRESHOLD_REG = 0x41u,
MPR121_RELEASE_THRESHOLD_REG = 0x42u,
// (ELEPROX 0x59 .. 0x5A)
MPR121_DEBOUNCE_REG = 0x5Bu,
MPR121_AFE_CONFIG_REG = 0x5Cu,
MPR121_FILTER_CONFIG_REG = 0x5Du,
MPR121_ELECTRODE_CONFIG_REG = 0x5Eu,
MPR121_ELECTRODE_CURRENT_REG = 0x5Fu,
MPR121_ELECTRODE_CHARGE_TIME_REG = 0x6Cu,
MPR121_GPIO_CTRL_0_REG = 0x73u,
MPR121_GPIO_CTRL_1_REG = 0x74u,
MPR121_GPIO_DATA_REG = 0x75u,
MPR121_GPIO_DIRECTION_REG = 0x76u,
MPR121_GPIO_ENABLE_REG = 0x77u,
MPR121_GPIO_DATA_SET_REG = 0x78u,
MPR121_GPIO_DATA_CLEAR_REG = 0x79u,
MPR121_GPIO_DATA_TOGGLE_REG = 0x7Au,
MPR121_AUTOCONFIG_CONTROL_0_REG = 0x7Bu,
MPR121_AUTOCONFIG_CONTROL_1_REG = 0x7Cu,
MPR121_AUTOCONFIG_USL_REG = 0x7Du,
MPR121_AUTOCONFIG_LSL_REG = 0x7Eu,
MPR121_AUTOCONFIG_TARGET_REG = 0x7Fu,
MPR121_SOFT_RESET_REG = 0x80u
};
/*! \brief Initialise the MPR121 and configure registers
*
* The default parameters used here to configure the sensor are as in
* the MPR121 Quick Start Guide (AN3944).
*
* \param i2c_port The I2C instance, either i2c0 or i2c1
* \param i2c_addr The I2C address of the MPR121 device
* \param sensor Pointer to the structure that stores the MPR121 info
*/
void mpr121_init(i2c_inst_t *i2c_port, uint8_t i2c_addr,
mpr121_sensor_t *sensor);
/*! \brief Write a value to the specified register
*
* \param reg The register address
* \param val The value to write
* \param sensor Pointer to the structure that stores the MPR121 info
*/
static void mpr121_write(enum mpr121_register reg, uint8_t val,
mpr121_sensor_t *sensor) {
uint8_t buf[] = {reg, val};
i2c_write_blocking(sensor->i2c_port, sensor->i2c_addr, buf, 2,
false);
}
/*! \brief Read a byte from the specified register
*
* \param reg The register address
* \param dst Pointer to buffer to receive data
* \param sensor Pointer to the structure that stores the MPR121 info
*/
static void mpr121_read(enum mpr121_register reg, uint8_t *dst,
mpr121_sensor_t *sensor) {
i2c_write_blocking(sensor->i2c_port, sensor->i2c_addr, &reg, 1,
true);
i2c_read_blocking(sensor->i2c_port, sensor->i2c_addr, dst, 1,
false);
}
/*! \brief Read a 2-byte value from the specified register
*
* \param reg The register address
* \param dst Pointer to buffer to receive data
* \param sensor Pointer to the structure that stores the MPR121 info
*/
static void mpr121_read16(enum mpr121_register reg, uint16_t *dst,
mpr121_sensor_t *sensor) {
uint8_t vals[2];
i2c_write_blocking(sensor->i2c_port, sensor->i2c_addr, &reg, 1,
true);
i2c_read_blocking(sensor->i2c_port, sensor->i2c_addr, vals, 2,
false);
*dst = vals[1] << 8 | vals[0];
}
/*! \brief Set touch and release thresholds
*
* From the MPR121 datasheet (section 5.6):
* > In a typical application, touch threshold is in the range 4--16,
* > and it is several counts larger than the release threshold. This
* > is to provide hysteresis and to prevent noise and jitter.
*
* \param touch Touch threshold in the range 0--255
* \param release Release threshold in the range 0--255
* \param sensor Pointer to the structure that stores the MPR121 info
*/
static void mpr121_set_thresholds(uint8_t touch, uint8_t release,
mpr121_sensor_t *sensor) {
uint8_t config;
mpr121_read(MPR121_ELECTRODE_CONFIG_REG, &config, sensor);
if (config != 0){
// Stop mode
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, 0x00, sensor);
}
for (uint8_t i=0; i<12; i++) {
mpr121_write(MPR121_TOUCH_THRESHOLD_REG + i * 2, touch, sensor);
mpr121_write(MPR121_RELEASE_THRESHOLD_REG + i * 2, release,
sensor);
}
if (config != 0){
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, config, sensor);
}
}
/*! \brief Enable only the number of electrodes specified
*
* \param nelec Number of electrodes to enable
* \param sensor Pointer to the structure that stores the MPR121 info
*
* E.g. if `nelec` is 3, electrodes 0 to 2 will be enabled; if `nelec`
* is 6, electrodes 0 to 5 will be enabled. From the datasheet:
* "Enabling specific channels will save the scan time and sensing
* field power spent on the unused channels."
*/
static void mpr121_enable_electrodes(uint8_t nelec,
mpr121_sensor_t *sensor){
uint8_t config;
mpr121_read(MPR121_ELECTRODE_CONFIG_REG, &config, sensor);
// Clear bits 3-0, which controls the operation of the 12
// electrodes.
config &= ~0x0f;
// Set number of electrodes enabled
config |= nelec;
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, 0x00, sensor);
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, config, sensor);
}
/*! \brief Read the touch/release status of all 13 input channels
*
* \param dst Pointer to buffer to receive data
* \param sensor Pointer to the structure that stores the MPR121 info
*
* In the value read, bits 11-0 represent electrodes 11 to 0,
* respectively, and bit 12 is the proximity detection channel. Each
* bit represent the status of these channels: 1 if the channel is
* touched, 0 if it is released.
*/
static void mpr121_touched(uint16_t *dst, mpr121_sensor_t *sensor) {
mpr121_read16(MPR121_TOUCH_STATUS_REG, dst, sensor);
*dst &= 0x0fff;
}
/*! \brief Determine whether an electrode has been touched
*
* \param electrode Electrode number
* \param dst Pointer to buffer to receive data
* \param sensor Pointer to the structure that stores the MPR121 info
*/
static void mpr121_is_touched(uint8_t electrode, bool *dst,
mpr121_sensor_t *sensor){
uint16_t touched;
mpr121_touched(&touched, sensor);
*dst = (bool) ((touched >> electrode) & 1);
}
/*! \brief Read an electrode's filtered data value
*
* \param electrode Electrode number
* \param dst Pointer to buffer to receive data
* \param sensor Pointer to the structure that stores the MPR121 info
*
* The data range of the filtered data is 0 to 1024.
* \sa mpr121_baseline_value
*/
static void mpr121_filtered_data(uint8_t electrode, uint16_t *dst,
mpr121_sensor_t *sensor){
mpr121_read16(MPR121_ELECTRODE_FILTERED_DATA_REG + (electrode * 2),
dst, sensor);
// Filtered data is 10-bit
*dst &= 0x3ff;
}
/*! \brief Read an electrode's baseline value
*
* \param electrode Electrode number
* \param dst Pointer to buffer to receive data
* \param sensor Pointer to the structure that stores the MPR121 info
*
* From the MPR112 datasheet:
* > Along with the 10-bit electrode filtered data output, each channel
* > also has a 10-bit baseline value. These values are the output of
* > the internal baseline filter operation tracking the slow-voltage
* > variation of the background capacitance change. Touch/release
* > detection is made based on the comparison between the 10-bit
* > electrode filtered data and the 10-bit baseline value.
*
* > Although internally the baseline value is 10-bit, users can only
* > access the 8 MSB of the 10-bit baseline value through the baseline
* > value registers.
*
* \sa mpr121_filtered_data
*/
static void mpr121_baseline_value(uint8_t electrode, uint16_t *dst,
mpr121_sensor_t *sensor){
uint8_t baseline;
mpr121_read(MPR121_BASELINE_VALUE_REG + electrode, &baseline,
sensor);
// From the datasheet: Although internally the baseline value is
// 10-bit, users can only access the 8 MSB of the 10-bit baseline
// value through the baseline value registers. The read out from the
// baseline register must be left shift two bits before comparing it
// with the 10-bit electrode data.
*dst = baseline << 2;
}
/*! \brief Set the Max Half Delta
*
* The Max Half Delta determines the largest magnitude of variation to
* pass through the third level filter. See application note MPR121
* Baseline System (AN3891) for details.
*
* \param rising Value in the range 1~63
* \param falling Value in the range 1~63
* \param sensor Pointer to the structure that stores the MPR121 info
*/
static void mpr121_set_max_half_delta(uint8_t rising, uint8_t falling,
mpr121_sensor_t *sensor) {
// Read current configuration then enter stop mode
uint8_t config;
mpr121_read(MPR121_ELECTRODE_CONFIG_REG, &config, sensor);
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, 0x00, sensor);
// Write MHD values
mpr121_write(MPR121_MAX_HALF_DELTA_RISING_REG, rising, sensor);
mpr121_write(MPR121_MAX_HALF_DELTA_FALLING_REG, falling, sensor);
// Re-enable electrodes
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, config, sensor);
}
/*! \brief Set the Noise Half Delta
*
* The Noise Half Delta determines the incremental change when
* non-noise drift is detected. See application note MPR121 Baseline
* System (AN3891) for details.
*
* \param rising Value in the range 1~63
* \param falling Value in the range 1~63
* \param touched Value in the range 1~63
* \param sensor Pointer to the structure that stores the MPR121 info
*/
static void mpr121_set_noise_half_delta(uint8_t rising, uint8_t falling,
uint8_t touched, mpr121_sensor_t *sensor) {
// Read current configuration then enter stop mode
uint8_t config;
mpr121_read(MPR121_ELECTRODE_CONFIG_REG, &config, sensor);
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, 0x00, sensor);
// Write NHD values
mpr121_write(MPR121_NOISE_HALF_DELTA_RISING_REG, rising, sensor);
mpr121_write(MPR121_NOISE_HALF_DELTA_FALLING_REG, falling, sensor);
mpr121_write(MPR121_NOISE_HALF_DELTA_TOUCHED_REG, touched, sensor);
// Re-enable electrodes
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, config, sensor);
}
/*! \brief Set the Noise Count Limit
*
* The Noise Count Limit determines the number of samples consecutively
* greater than the Max Half Delta necessary before it can be
* determined that it is non-noise. See application note MPR121 Baseline
* System (AN3891) for details.
*
* \param rising Value in the range 0~255
* \param falling Value in the range 0~255
* \param touched Value in the range 0~255
* \param sensor Pointer to the structure that stores the MPR121 info
*/
static void mpr121_set_noise_count_limit(uint8_t rising,
uint8_t falling, uint8_t touched, mpr121_sensor_t *sensor) {
// Read current configuration then enter stop mode
uint8_t config;
mpr121_read(MPR121_ELECTRODE_CONFIG_REG, &config, sensor);
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, 0x00, sensor);
// Write new NCL values
mpr121_write(MPR121_NOISE_COUNT_LIMIT_RISING_REG, rising, sensor);
mpr121_write(MPR121_NOISE_COUNT_LIMIT_FALLING_REG, falling, sensor);
mpr121_write(MPR121_NOISE_COUNT_LIMIT_TOUCHED_REG, touched, sensor);
// Re-enable electrodes
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, config, sensor);
}
/*! \brief Set the Filter Delay Limit
*
* The Filter Delay Limit determines the rate of operation of the
* filter. A larger number makes it operate slower. See application
* note MPR121 Baseline System (AN3891) for details.
*
* \param rising Value in the range 0~255
* \param falling Value in the range 0~255
* \param touched Value in the range 0~255
* \param sensor Pointer to the structure that stores the MPR121 info
*/
static void mpr121_set_filter_delay_limit(uint8_t rising,
uint8_t falling, uint8_t touched, mpr121_sensor_t *sensor) {
// Read current configuration then enter stop mode
uint8_t config;
mpr121_read(MPR121_ELECTRODE_CONFIG_REG, &config, sensor);
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, 0x00, sensor);
// Write new FDL values
mpr121_write(MPR121_FILTER_DELAY_COUNT_RISING_REG, rising, sensor);
mpr121_write(MPR121_FILTER_DELAY_COUNT_FALLING_REG, falling,
sensor);
mpr121_write(MPR121_FILTER_DELAY_COUNT_TOUCHED_REG, touched,
sensor);
// Re-enable electrodes
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, config, sensor);
}
#endif

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/*
* Copyright (c) 2021-2022 Antonio González
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include "mpr121.h"
void mpr121_init(i2c_inst_t *i2c_port, uint8_t i2c_addr,
mpr121_sensor_t *sensor) {
sensor->i2c_port = i2c_port;
sensor->i2c_addr = i2c_addr;
// Enter stop mode by setting ELEPROX_EN and ELE_EN bits to zero.
// This is needed because register write operations can only take
// place in stop mode.
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, 0x00, sensor);
// Writing 0x80 (SOFT_RESET) with 0x63 asserts soft reset.
mpr121_write(MPR121_SOFT_RESET_REG, 0x63, sensor);
// == Capacitance sensing settings (AN2889), Filtering and =========
// timing settings (AN3890)
// These settings are configured in two registers: the Filter and
// Global CDC CDT Configuration registers (0x5C, 0x5D).
//
// Charge-discharge current (CDC) and charge-discharge time (CDT)
// can be configured globally or on a per-electrode basis. Here,
// The global CDC and CDT values are set to their defaults, and then
// these values are overriden by independently configuring each
// electrode (auto-configuration).
// Filter/global CDC configuration register (0x5C)
//
// First filter iterations (FFI), bits 7-6. Number of samples taken
// as input to the first level of filtering. Default is 0b00 (sets
// samples taken to 6)
//
// Charge-discharge current (CDC), bits 5-0. Sets the value of
// charge-discharge current applied to the electrode. Max is 63 µA
// in 1 µA steps. Default is 0b010000 (16 µA)
//
// AFE configuration register default, 0b00010000 = 0x10
mpr121_write(MPR121_AFE_CONFIG_REG, 0x10, sensor);
// Filter/global CDC configuration register (0x5D)
//
// Charge discharge time (CDT), bits 7-5. Selects the global value
// of charge time applied to electrode. The maximum is 32 μs,
// programmable as 2^(n-2) μs. Default is 0b001 (time is set to
// 0.5 µs)
//
// Second filter iterations (SFI), bits 4-3. Selects the number of
// samples taken for the second level filter. Default is 0b00
// (number of samples is set to 4)
//
// Electrode sample interval (ESI), bits 2-0. Controls the sampling
// rate of the device. The maximum is 128 ms, programmable to 2^n
// ms. Decrease this value for better response time, increase to
// save power. Default is 0b100 (period set to 16 ms).
//
// Filter configuration register default, 0b00100100 = 0x24
// I do not need power saving features but I want fast responses,
// so I set this to 0x20.
mpr121_write(MPR121_FILTER_CONFIG_REG, 0x20, sensor);
// Auto-configuration
//
// Sets automatically charge current (CDC) and time (CDT) values for
// each electrode.
//
// Autoconfig USL register: the upper limit for the
// auto-configuration. This value (and those that follow below)
// were calculated based on Vdd = 3.3 V and following the equations
// in NXP Application Note AN3889.
// USL = 201 = 0xC9
mpr121_write(MPR121_AUTOCONFIG_USL_REG, 0xC9, sensor);
// Autoconfig target level register: the target level for the
// auto-configuration baseline search.
// TL = 181 = 0xB5
mpr121_write(MPR121_AUTOCONFIG_TARGET_REG, 0xB5, sensor);
// Autoconfig LSL register: the lower limit for the
// auto-configuration.
// LSL = 131 = 0x83
mpr121_write(MPR121_AUTOCONFIG_LSL_REG, 0x83, sensor);
// Autoconfiguration control register. Default value is 0b00001011 =
// 0x0B, where:
//
// First filter iterations (FFI), bits 7-6. Must be the same value
// of FFI as in register MPR121_AFE_CONFIG_REG (0x5C) above;
// default is 0b00.
//
// Retry, bits 5-4. Default is disabled, 0b00.
//
// Baseline value adjust (BVA), bits 3-2. This value must be the
// same as the CL (calibration lock) value in the Electrode
// Configuration Register, below, i.e. 0b10.
//
// Automatic Reconfiguration Enable (ARE), bit 1. Default is 0b1,
// enabled.
//
// Automatic Reconfiguration Enable (ACE), bit 0. Default is 0b1,
// enabled.
mpr121_write(MPR121_AUTOCONFIG_CONTROL_0_REG, 0x0B, sensor);
// == Baseline system (AN3891) =====================================
// Maximum Half Delta (MHD): Determines the largest magnitude of
// variation to pass through the baseline filter. The range of the
// effective value is 1~63.
mpr121_write(MPR121_MAX_HALF_DELTA_RISING_REG, 0x01, sensor);
mpr121_write(MPR121_MAX_HALF_DELTA_FALLING_REG, 0x01, sensor);
// Noise Half Delta (NHD): Determines the incremental change when
// non-noise drift is detected. The range of the effective value is
// 1~63.
mpr121_write(MPR121_NOISE_HALF_DELTA_RISING_REG, 0x01, sensor);
mpr121_write(MPR121_NOISE_HALF_DELTA_FALLING_REG, 0x01, sensor);
mpr121_write(MPR121_NOISE_HALF_DELTA_TOUCHED_REG, 0x01, sensor);
// Noise Count Limit (NCL): Determines the number of samples
// consecutively greater than the Max Half Delta value. This is
// necessary to determine that it is not noise. The range of the
// effective value is 0~255.
mpr121_write(MPR121_NOISE_COUNT_LIMIT_RISING_REG, 0x00, sensor);
mpr121_write(MPR121_NOISE_COUNT_LIMIT_FALLING_REG, 0xFF, sensor);
mpr121_write(MPR121_NOISE_COUNT_LIMIT_TOUCHED_REG, 0x00, sensor);
// Filter Delay Count Limit (FDL): Determines the operation rate of
// the filter. A larger count limit means the filter delay is
// operating more slowly. The range of the effective value is 0~255.
mpr121_write(MPR121_FILTER_DELAY_COUNT_RISING_REG, 0x00, sensor);
mpr121_write(MPR121_FILTER_DELAY_COUNT_FALLING_REG, 0x02, sensor);
mpr121_write(MPR121_FILTER_DELAY_COUNT_TOUCHED_REG, 0x00, sensor);
// == Debounce and thresholds (AN3892) =============================
// Debounce. Value range for each is 0~7.
// Bits 2-0, debounce touch (DT).
// Bits 6-4, debounce release (DR).
mpr121_write(MPR121_DEBOUNCE_REG, 0x00, sensor);
// Touch and release threshold values for all electrodes.
for (uint8_t i=0; i<12; i++) {
mpr121_write(MPR121_TOUCH_THRESHOLD_REG + i * 2, 0x0F, sensor);
mpr121_write(MPR121_RELEASE_THRESHOLD_REG + i * 2, 0x0A, sensor);
}
// Electrode Configuration Register (ECR, 0x5E). This must be the
// last register to write to because setting ELEPROX_EN and/or
// ELE_EN to non-zero puts the sensor in Run Mode.
//
// Calibration lock (CL), bits 7-6. The default on reset is 0b00
// (CL enabled). Here I set this instead to 0b10 because this
// enables baseline tracking with initial baseline value loaded
// with the 5 high bits of the first electrode data value, which
// makes the sensor stabilise sooner. Note that ths value must
// match BVA bits in the Auto-configure Control Register above.
//
// Proximity enable (ELEPROX_EN), bits 5-4. Default, 0b00
// (proximity detection disabled).
//
// Electrode enabled (ELE_EN), bits 3-0. Default, 0b1100 (enable
// all 12 electrodes).
mpr121_write(MPR121_ELECTRODE_CONFIG_REG, 0x8C, sensor);
}

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# This is a copy of <PICO_SDK_PATH>/external/pico_sdk_import.cmake
# This can be dropped into an external project to help locate this SDK
# It should be include()ed prior to project()
if (DEFINED ENV{PICO_SDK_PATH} AND (NOT PICO_SDK_PATH))
set(PICO_SDK_PATH $ENV{PICO_SDK_PATH})
message("Using PICO_SDK_PATH from environment ('${PICO_SDK_PATH}')")
endif ()
if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT} AND (NOT PICO_SDK_FETCH_FROM_GIT))
set(PICO_SDK_FETCH_FROM_GIT $ENV{PICO_SDK_FETCH_FROM_GIT})
message("Using PICO_SDK_FETCH_FROM_GIT from environment ('${PICO_SDK_FETCH_FROM_GIT}')")
endif ()
if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT_PATH} AND (NOT PICO_SDK_FETCH_FROM_GIT_PATH))
set(PICO_SDK_FETCH_FROM_GIT_PATH $ENV{PICO_SDK_FETCH_FROM_GIT_PATH})
message("Using PICO_SDK_FETCH_FROM_GIT_PATH from environment ('${PICO_SDK_FETCH_FROM_GIT_PATH}')")
endif ()
set(PICO_SDK_PATH "${PICO_SDK_PATH}" CACHE PATH "Path to the Raspberry Pi Pico SDK")
set(PICO_SDK_FETCH_FROM_GIT "${PICO_SDK_FETCH_FROM_GIT}" CACHE BOOL "Set to ON to fetch copy of SDK from git if not otherwise locatable")
set(PICO_SDK_FETCH_FROM_GIT_PATH "${PICO_SDK_FETCH_FROM_GIT_PATH}" CACHE FILEPATH "location to download SDK")
if (NOT PICO_SDK_PATH)
if (PICO_SDK_FETCH_FROM_GIT)
include(FetchContent)
set(FETCHCONTENT_BASE_DIR_SAVE ${FETCHCONTENT_BASE_DIR})
if (PICO_SDK_FETCH_FROM_GIT_PATH)
get_filename_component(FETCHCONTENT_BASE_DIR "${PICO_SDK_FETCH_FROM_GIT_PATH}" REALPATH BASE_DIR "${CMAKE_SOURCE_DIR}")
endif ()
# GIT_SUBMODULES_RECURSE was added in 3.17
if (${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.17.0")
FetchContent_Declare(
pico_sdk
GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
GIT_TAG master
GIT_SUBMODULES_RECURSE FALSE
)
else ()
FetchContent_Declare(
pico_sdk
GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
GIT_TAG master
)
endif ()
if (NOT pico_sdk)
message("Downloading Raspberry Pi Pico SDK")
FetchContent_Populate(pico_sdk)
set(PICO_SDK_PATH ${pico_sdk_SOURCE_DIR})
endif ()
set(FETCHCONTENT_BASE_DIR ${FETCHCONTENT_BASE_DIR_SAVE})
else ()
message(FATAL_ERROR
"SDK location was not specified. Please set PICO_SDK_PATH or set PICO_SDK_FETCH_FROM_GIT to on to fetch from git."
)
endif ()
endif ()
get_filename_component(PICO_SDK_PATH "${PICO_SDK_PATH}" REALPATH BASE_DIR "${CMAKE_BINARY_DIR}")
if (NOT EXISTS ${PICO_SDK_PATH})
message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' not found")
endif ()
set(PICO_SDK_INIT_CMAKE_FILE ${PICO_SDK_PATH}/pico_sdk_init.cmake)
if (NOT EXISTS ${PICO_SDK_INIT_CMAKE_FILE})
message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' does not appear to contain the Raspberry Pi Pico SDK")
endif ()
set(PICO_SDK_PATH ${PICO_SDK_PATH} CACHE PATH "Path to the Raspberry Pi Pico SDK" FORCE)
include(${PICO_SDK_INIT_CMAKE_FILE})

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set(BTSTACK_ROOT ${PICO_SDK_PATH}/lib/btstack)
set(LWIP_ROOT ${PICO_SDK_PATH}/lib/lwip)
function(make_firmware board board_def)
pico_sdk_init()
add_executable(${board}
main.c buttons.c rgb.c save.c config.c setup.c vl6180.c
usb_descriptors.c)
target_compile_definitions(${board} PUBLIC ${board_def})
pico_enable_stdio_usb(${board} 1)
pico_enable_stdio_uart(${board} 0)
pico_generate_pio_header(${board} ${CMAKE_CURRENT_LIST_DIR}/ws2812.pio)
target_compile_options(${board} PRIVATE -Wfatal-errors -O3)
target_include_directories(${board} PRIVATE ${CMAKE_CURRENT_LIST_DIR})
target_include_directories(${board} PRIVATE
${BTSTACK_ROOT}/src
${LWIP_ROOT}/src/include)
target_link_libraries(${board} PRIVATE
pico_multicore pico_stdlib hardware_pio hardware_pwm hardware_flash
hardware_adc hardware_i2c hardware_watchdog
tinyusb_device tinyusb_board pico-mpr121)
pico_add_extra_outputs(${board})
add_custom_command(TARGET ${board} POST_BUILD
COMMAND cp ${board}.uf2 /mnt/d/Code/iidx_pico/firmware/build)
endfunction()
make_firmware(chu_pico BOARD_IIDX_PICO)

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/*
* IIDX Controller Board Definitions
* WHowe <github.com/whowechina>
*/
#if defined BOARD_IIDX_PICO
/* List of button pins */
#define BUTTON_DEF { 8, 7, 6, 5, 4, 3, 2, 12, 11, 10, 9, 1, 0 }
#define BUTTON_RGB_PIN 13
#define BUTTON_RGB_ORDER GRB // or RGB
#define BUTTON_RGB_NUM 11
#define BUTTON_RGB_MAP { 6, 0, 5, 1, 4, 2, 3, 7, 8, 9, 10}
#define TT_RGB_PIN 28
#define TT_RGB_ORDER GRB // or RGB
#define TT_AS5600_ANALOG 26
#define TT_AS5600_SCL 27
#define TT_AS5600_SDA 26
#define TT_AS5600_I2C i2c1
// Alternative I2C pins
//#define TT_AS5600_SCL 21
//#define TT_AS5600_SDA 20
//#define TT_AS5600_I2C i2c0
#else
#endif

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/*
* Controller Buttons
* WHowe <github.com/whowechina>
*
* A button consists of a switch and an LED
*/
#include "buttons.h"
#include <stdint.h>
#include <stdbool.h>
#include "bsp/board.h"
#include "hardware/gpio.h"
#include "board_defs.h"
static const uint8_t BUTTON_GPIOS[] = BUTTON_DEF;
#define BUTTON_NUM (sizeof(BUTTON_GPIOS))
static bool sw_val[BUTTON_NUM]; /* true if pressed */
static uint64_t sw_freeze_time[BUTTON_NUM];
#define LIMIT_MAX(a, max, def) { if (a > max) a = def; }
void button_init()
{
for (int i = 0; i < BUTTON_NUM; i++) {
sw_val[i] = false;
sw_freeze_time[i] = 0;
int8_t gpio = BUTTON_GPIOS[i];
gpio_init(gpio);
gpio_set_function(gpio, GPIO_FUNC_SIO);
gpio_set_dir(gpio, GPIO_IN);
gpio_pull_up(gpio);
}
}
uint8_t button_num()
{
return BUTTON_NUM;
}
uint8_t button_gpio(uint8_t id)
{
return BUTTON_GPIOS[id];
}
/* If a switch flips, it freezes for a while */
#define DEBOUNCE_FREEZE_TIME_US 5000
uint16_t button_read()
{
uint64_t now = time_us_64();
uint16_t buttons = 0;
for (int i = BUTTON_NUM - 1; i >= 0; i--) {
bool sw_pressed = !gpio_get(BUTTON_GPIOS[i]);
if (now >= sw_freeze_time[i]) {
if (sw_pressed != sw_val[i]) {
sw_val[i] = sw_pressed;
sw_freeze_time[i] = now + DEBOUNCE_FREEZE_TIME_US;
}
}
buttons <<= 1;
if (sw_val[i]) {
buttons |= 1;
}
}
return buttons;
}

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/*
* Controller Buttons
* WHowe <github.com/whowechina>
*/
#ifndef BUTTONS_H
#define BUTTONS_H
#include <stdint.h>
void button_init();
uint8_t button_num();
uint8_t button_gpio(uint8_t id);
uint16_t button_read();
#endif

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/*
* Controller Config Data
* WHowe <github.com/whowechina>
*
* Config is a global data structure that stores all the configuration
*/
#include "config.h"
#include "save.h"
iidx_cfg_t *iidx_cfg;
static iidx_cfg_t default_cfg = {
.key_off = { {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}, {0}},
.key_on = { {40,40,40}, {40,40,40}, {40,40,40}, {40,40,40}, {40,40,40}, {40,40,40},
{40,40,40}, {40,40,40}, {40,40,40}, {40,40,40}, {40,40,40},
},
.tt_led = {
.start = 0,
.num = 24,
.effect = 0,
.param = 0,
.mode = 0,
},
.tt_sensor = {
.mode = 2,
.deadzone = 1,
.ppr = 1,
},
.effects = {
.e1 = 255,
.e2 = 128,
.e3 = 128,
.e4 = 128,
},
.level = 128,
.konami = false,
};
static void config_loaded()
{
if (iidx_cfg->tt_led.num == 0) {
iidx_cfg->tt_led.num = 24;
config_changed();
}
if ((iidx_cfg->tt_led.start > 8) ||
(iidx_cfg->tt_led.start + iidx_cfg->tt_led.num > 128)) {
iidx_cfg->tt_led.start = 0;
iidx_cfg->tt_led.num = 24;
config_changed();
}
if (iidx_cfg->tt_sensor.deadzone > 2) {
iidx_cfg->tt_sensor.deadzone = 0;
config_changed();
}
if (iidx_cfg->tt_led.mode > 2) {
iidx_cfg->tt_led.mode = 0;
config_changed();
}
if (iidx_cfg->tt_sensor.mode > 3) {
iidx_cfg->tt_sensor.mode = 2;
config_changed();
}
if (iidx_cfg->tt_sensor.ppr > 3) {
iidx_cfg->tt_sensor.ppr = 1;
config_changed();
}
}
void config_changed()
{
save_request(false);
}
void config_factory_reset()
{
*iidx_cfg = default_cfg;
save_request(true);
}
void config_init()
{
iidx_cfg = (iidx_cfg_t *)save_alloc(sizeof(iidx_cfg), &default_cfg, config_loaded);
}

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/*
* Controller Config
* WHowe <github.com/whowechina>
*/
#ifndef CONFIG_H
#define CONFIG_H
#include <stdint.h>
#include <stdbool.h>
typedef struct __attribute ((packed)) {
uint8_t h; // hue;
uint8_t s; // saturation;
uint8_t v; // value;
} hsv_t;
typedef struct __attribute ((packed)) {
hsv_t key_off[11];
hsv_t key_on[11];
struct {
uint8_t start;
uint8_t num;
uint8_t effect;
uint8_t param;
uint8_t mode; /* 0: on, 1: reversed, 2: off */
} tt_led;
struct {
uint8_t mode; /* 0: analog, 1: analog reversed, 2: i2c, 3: i2c reversed */
uint8_t deadzone; /* only for analog */
uint8_t ppr; /* 0: 256, 1: 128, 2: 96, 3: 64, other: 256 */
} tt_sensor;
struct {
uint8_t e1;
uint8_t e2;
uint8_t e3;
uint8_t e4;
} effects;
uint8_t level; /* led brightness limit */
bool konami; /* konami spoof */
} iidx_cfg_t;
extern iidx_cfg_t *iidx_cfg;
void config_init();
void config_changed(); // Notify the config has changed
void config_factory_reset(); // Reset the config to factory default
#endif

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/*
* GP2Y0E Distance measurement sensor
* WHowe <github.com/whowechina>
*/
#ifndef GP2Y0E_H
#define GP2Y0E_H
#define GP2Y0E_DEF_ADDR 0x40
#include "hardware/i2c.h"
static inline uint16_t gp2y0e_write(i2c_inst_t *i2c_port, uint8_t addr, uint8_t val)
{
uint8_t cmd[] = {addr, val};
i2c_write_blocking(i2c_port, GP2Y0E_DEF_ADDR, cmd, 2, false);
}
static inline uint8_t gp2y0e_dist(i2c_inst_t *i2c_port)
{
uint8_t cmd[] = {0x5e};
i2c_write_blocking(i2c_port, GP2Y0E_DEF_ADDR, cmd, 1, true);
uint8_t data;
i2c_read_blocking(i2c_port, GP2Y0E_DEF_ADDR, &data, 1, false);
return data;
}
static inline uint16_t gp2y0e_dist16(i2c_inst_t *i2c_port)
{
uint8_t cmd[] = {0x5e};
i2c_write_blocking(i2c_port, GP2Y0E_DEF_ADDR, cmd, 1, true);
uint8_t data[2];
i2c_read_blocking(i2c_port, GP2Y0E_DEF_ADDR, data, 2, false);
return (data[0] << 4) | data[1];
}
#endif

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/*
* I2C Hub Using PCA9548A
* WHowe <github.com/whowechina>
*/
#ifndef I2C_HUB_H
#define I2C_HUB_H
#include "hardware/i2c.h"
#define I2C_HUB_ADDR 0x70
static inline void i2c_select(i2c_inst_t *i2c_port, uint8_t chn)
{
sleep_us(10);
i2c_write_blocking(i2c_port, I2C_HUB_ADDR, &chn, 1, false);
sleep_us(10);
}
#endif

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/*
* Controller Main
* WHowe <github.com/whowechina>
*/
#include <stdint.h>
#include <stdbool.h>
#include "bsp/board.h"
#include "pico/multicore.h"
#include "pico/bootrom.h"
#include "pico/stdio.h"
#include "hardware/watchdog.h"
#include "hardware/gpio.h"
#include "hardware/adc.h"
#include "hardware/i2c.h"
#include "i2c_hub.h"
#include "gp2y0e.h"
#include "vl6180.h"
#include "mpr121.h"
#include "tusb.h"
#include "usb_descriptors.h"
/* Measure the time of a function call */
#define RUN_TIME(func) \
{ uint64_t _t = time_us_64(); func; \
printf(#func ":%lld\n", time_us_64() - _t); }
struct {
uint16_t buttons;
uint8_t joy[6];
} hid_report;
void report_usb_hid()
{
if (tud_hid_ready()) {
hid_report.joy[2] = 0;
hid_report.joy[3] = 64;
hid_report.joy[4] = 128;
hid_report.joy[5] = 192;
tud_hid_n_report(0x00, REPORT_ID_JOYSTICK, &hid_report, sizeof(hid_report));
}
}
static bool request_core1_pause = false;
static void pause_core1(bool pause)
{
request_core1_pause = pause;
if (pause) {
sleep_ms(5); /* wait for any IO ops to finish */
}
}
static void core1_loop()
{
}
// I2C definitions: port and pin numbers
#define MPR121_PORT i2c1
#define MPR121_SDA 6
#define MPR121_SCL 7
// MPR121 I2C definitions: address and frequency.
#define MPR121_ADDR 0x5A
#define MPR121_I2C_FREQ 400000
// Touch and release thresholds.
#define MPR121_TOUCH_THRESHOLD 16
#define MPR121_RELEASE_THRESHOLD 10
#define I2C_PORT i2c1
#define I2C_I2C_FREQ 200000
#define I2C_SDA 26
#define I2C_SCL 27
static void core0_loop_gp2y()
{
sleep_ms(100);
i2c_init(I2C_PORT, I2C_I2C_FREQ);
gpio_set_function(I2C_SDA, GPIO_FUNC_I2C);
gpio_set_function(I2C_SCL, GPIO_FUNC_I2C);
gpio_pull_up(I2C_SDA);
gpio_pull_up(I2C_SCL);
i2c_select(I2C_PORT, 1 << 4);
gp2y0e_write(I2C_PORT, 0xa8, 0x00);
i2c_select(I2C_PORT, 1 << 3);
vl6180_init(I2C_PORT);
i2c_select(I2C_PORT, 1 << 5);
vl6180_init(I2C_PORT);
sleep_ms(100);
i2c_select(I2C_PORT, 1 << 3);
vl6180_write(I2C_PORT, 0x01b, 0x05);
vl6180_write(I2C_PORT, 0x018, 3);
i2c_select(I2C_PORT, 1 << 5);
vl6180_write(I2C_PORT, 0x01b, 0x05);
vl6180_write(I2C_PORT, 0x018, 3);
uint8_t od1 = 0, od2 = 0, od3 = 0;
while(1) {
tud_task();
hid_report.buttons = 0xcccc;
report_usb_hid();
i2c_select(I2C_PORT, 1 << 4);
uint8_t d1 = gp2y0e_dist(I2C_PORT);
i2c_select(I2C_PORT, 1 << 3);
uint8_t d2 = vl6180_dist(I2C_PORT, od2);
i2c_select(I2C_PORT, 1 << 5);
uint8_t d3 = vl6180_dist(I2C_PORT, od3);
if (d1 != od1 || d2 != od2 || d3 != od3) {
if ((d1 == 255) && (d2 = 255) && (d3 == 255)) {
printf("---\t---\t---\n");
} else {
printf("%3d\t%3d\t%3d\n", d1, d2, d3);
}
od1 = d1;
od2 = d2;
od3 = d3;
}
}
}
static void core0_loop_adc()
{
adc_init();
adc_gpio_init(28);
adc_select_input(2);
while(1) {
tud_task();
hid_report.buttons = 0xcccc;
report_usb_hid();
uint16_t result = adc_read();
printf("%6o\n", result);
sleep_ms(1);
}
}
static void core0_loop_mpr121()
{
// Initialise I2C.
i2c_init(MPR121_PORT, MPR121_I2C_FREQ);
gpio_set_function(MPR121_SDA, GPIO_FUNC_I2C);
gpio_set_function(MPR121_SCL, GPIO_FUNC_I2C);
gpio_pull_up(MPR121_SDA);
gpio_pull_up(MPR121_SCL);
struct mpr121_sensor mpr121[3];
for (int m = 0; m < 3; m++) {
mpr121_init(MPR121_PORT, MPR121_ADDR + m, mpr121 + m);
mpr121_set_thresholds(MPR121_TOUCH_THRESHOLD,
MPR121_RELEASE_THRESHOLD, mpr121 + m);
// Enable only one touch sensor (electrode 0).
mpr121_enable_electrodes(12, mpr121 + m);
}
int16_t baseline[34] = {0};
uint32_t counter[34] = {0};
for (int c = 0; c < 2000; c++) {
tud_task();
hid_report.buttons = 0xcccc;
report_usb_hid();
for (int i = 0; i < 34; i++) {
int16_t touch_data;
mpr121_baseline_value(i % 12, &touch_data, mpr121 + i / 12);
counter[i] += touch_data;
}
}
for (int i = 0; i < 34; i++) {
baseline[i] = counter[i] / 2000;
}
while(1) {
tud_task();
hid_report.buttons = 0xcccc;
report_usb_hid();
for (int i = 0; i < 34; i++) {
int16_t touch_data;
mpr121_baseline_value(i % 12, &touch_data, mpr121 + i / 12);
int16_t display_data = (baseline[i] - touch_data) / 8;
if (display_data) {
printf("%2d", display_data);
} else {
printf(" ");
}
printf("%c", i % 12 == 11 ? ':' : ' ');
}
printf("\n");
}
}
static void core0_loop()
{
core0_loop_gp2y();
}
void init()
{
board_init();
tusb_init();
stdio_init_all();
}
int main(void)
{
sleep_ms(1000);
init();
//multicore_launch_core1(core1_loop);
core0_loop();
return 0;
}
// Invoked when received GET_REPORT control request
// Application must fill buffer report's content and return its length.
// Return zero will cause the stack to STALL request
uint16_t tud_hid_get_report_cb(uint8_t itf, uint8_t report_id,
hid_report_type_t report_type, uint8_t *buffer,
uint16_t reqlen)
{
return 0;
}
// Invoked when received SET_REPORT control request or
// received data on OUT endpoint ( Report ID = 0, Type = 0 )
void tud_hid_set_report_cb(uint8_t itf, uint8_t report_id,
hid_report_type_t report_type, uint8_t const *buffer,
uint16_t bufsize)
{
if ((report_id == REPORT_ID_LIGHTS) &&
(report_type == HID_REPORT_TYPE_OUTPUT)) {
if (bufsize >= 0) {
return;
}
}
}

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/*
* RGB LED (WS2812) Strip control
* WHowe <github.com/whowechina>
*
*/
#include "rgb.h"
#include "buttons.h"
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <stdbool.h>
#include "bsp/board.h"
#include "hardware/pio.h"
#include "hardware/timer.h"
#include "ws2812.pio.h"
#include "board_defs.h"
#include "config.h"
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
static const uint8_t button_rgb_map[BUTTON_RGB_NUM] = BUTTON_RGB_MAP;
static void trap() {}
static tt_effect_t effects[10] = { {trap, trap, trap, 0} };
static size_t effect_num = 0;
static unsigned current_effect = 0;
#define _MAP_LED(x) _MAKE_MAPPER(x)
#define _MAKE_MAPPER(x) MAP_LED_##x
#define MAP_LED_RGB { c1 = r; c2 = g; c3 = b; }
#define MAP_LED_GRB { c1 = g; c2 = r; c3 = b; }
#define REMAP_BUTTON_RGB _MAP_LED(BUTTON_RGB_ORDER)
#define REMAP_TT_RGB _MAP_LED(TT_RGB_ORDER)
static inline uint32_t _rgb32(uint32_t c1, uint32_t c2, uint32_t c3, bool gamma_fix)
{
c1 = c1 * iidx_cfg->level / 255;
c2 = c2 * iidx_cfg->level / 255;
c3 = c3 * iidx_cfg->level / 255;
if (gamma_fix) {
c1 = ((c1 + 1) * (c1 + 1) - 1) >> 8;
c2 = ((c2 + 1) * (c2 + 1) - 1) >> 8;
c3 = ((c3 + 1) * (c3 + 1) - 1) >> 8;
}
return (c1 << 16) | (c2 << 8) | (c3 << 0);
}
uint32_t button_rgb32(uint32_t r, uint32_t g, uint32_t b, bool gamma_fix)
{
#if BUTTON_RGB_ORDER == GRB
return _rgb32(g, r, b, gamma_fix);
#else
return _rgb32(r, g, b, gamma_fix);
#endif
}
uint32_t tt_rgb32(uint32_t r, uint32_t g, uint32_t b, bool gamma_fix)
{
#if TT_RGB_ORDER == GRB
return _rgb32(g, r, b, gamma_fix);
#else
return _rgb32(r, g, b, gamma_fix);
#endif
}
uint8_t rgb_button_num()
{
return BUTTON_RGB_NUM;
}
uint8_t button_lights[BUTTON_RGB_NUM];
uint32_t tt_led_buf[128] = {0};
uint32_t tt_led_angle = 0;
static uint32_t button_led_buf[BUTTON_RGB_NUM] = {0};
void set_effect(uint32_t index)
{
if (index < effect_num) {
current_effect = index;
effects[current_effect].init(effects[current_effect].context);
} else {
current_effect = effect_num;
}
}
void drive_led()
{
for (int i = 0; i < ARRAY_SIZE(button_led_buf); i++) {
pio_sm_put_blocking(pio0, 0, button_led_buf[i] << 8u);
}
if (iidx_cfg->tt_led.mode == 2) {
return;
}
for (int i = 0; i < iidx_cfg->tt_led.start; i++) {
pio_sm_put_blocking(pio1, 0, 0);
}
for (int i = 0; i < TT_LED_NUM; i++) {
bool reversed = iidx_cfg->tt_led.mode & 0x01;
uint8_t id = reversed ? TT_LED_NUM - i - 1 : i;
pio_sm_put_blocking(pio1, 0, tt_led_buf[id] << 8u);
}
for (int i = 0; i < 8; i++) { // a few more to wipe out the last led
pio_sm_put_blocking(pio1, 0, 0);
}
}
static uint32_t rgb32_from_hsv(hsv_t hsv)
{
uint32_t region, remainder, p, q, t;
if (hsv.s == 0) {
return hsv.v << 16 | hsv.v << 8 | hsv.v;
}
region = hsv.h / 43;
remainder = (hsv.h % 43) * 6;
p = (hsv.v * (255 - hsv.s)) >> 8;
q = (hsv.v * (255 - ((hsv.s * remainder) >> 8))) >> 8;
t = (hsv.v * (255 - ((hsv.s * (255 - remainder)) >> 8))) >> 8;
switch (region) {
case 0:
return hsv.v << 16 | t << 8 | p;
case 1:
return q << 16 | hsv.v << 8 | p;
case 2:
return p << 16 | hsv.v << 8 | t;
case 3:
return p << 16 | q << 8 | hsv.v;
case 4:
return t << 16 | p << 8 | hsv.v;
default:
return hsv.v << 16 | p << 8 | q;
}
}
uint32_t button_hsv(hsv_t hsv)
{
uint32_t rgb = rgb32_from_hsv(hsv);
uint32_t r = (rgb >> 16) & 0xff;
uint32_t g = (rgb >> 8) & 0xff;
uint32_t b = (rgb >> 0) & 0xff;
#if BUTTON_RGB_ORDER == GRB
return _rgb32(g, r, b, false);
#else
return _rgb32(r, g, b, false);
#endif
}
uint32_t tt_hsv(hsv_t hsv)
{
uint32_t rgb = rgb32_from_hsv(hsv);
uint32_t r = (rgb >> 16) & 0xff;
uint32_t g = (rgb >> 8) & 0xff;
uint32_t b = (rgb >> 0) & 0xff;
#if TT_RGB_ORDER == GRB
return _rgb32(g, r, b, false);
#else
return _rgb32(r, g, b, false);
#endif
}
#define HID_EXPIRE_DURATION 1000000ULL
static uint64_t hid_expire_time = 0;
static void button_lights_update()
{
for (int i = 0; i < BUTTON_RGB_NUM; i++) {
int led = button_rgb_map[i];
if (button_lights[i] > 0) {
button_led_buf[led] = button_hsv(iidx_cfg->key_on[i]);
} else {
button_led_buf[led] = button_hsv(iidx_cfg->key_off[i]);
}
}
}
void rgb_set_angle(uint32_t angle)
{
tt_led_angle = angle;
effects[current_effect].set_angle(angle);
}
void rgb_set_button_light(uint16_t buttons)
{
if (time_us_64() < hid_expire_time) {
return;
}
for (int i = 0; i < BUTTON_RGB_NUM; i++) {
uint16_t flag = 1 << i;
button_lights[i] = (buttons & flag) > 0 ? 0xff : 0;
}
}
void rgb_set_hid_light(uint8_t const *lights, uint8_t num)
{
memcpy(button_lights, lights, num);
hid_expire_time = time_us_64() + HID_EXPIRE_DURATION;
}
static void effect_update()
{
effects[current_effect].update(effects[current_effect].context);
}
#define FORCE_EXPIRE_DURATION 100000ULL
static uint64_t force_expire_time = 0;
uint32_t *force_buttons = NULL;
uint32_t *force_tt = NULL;
void force_update()
{
for (int i = 0; i < BUTTON_RGB_NUM; i++) {
int led = button_rgb_map[i];
button_led_buf[led] = force_buttons[i];
}
memcpy(tt_led_buf, force_tt, TT_LED_NUM * sizeof(uint32_t));
}
void rgb_force_display(uint32_t *buttons, uint32_t *tt)
{
force_buttons = buttons;
force_tt = tt;
force_expire_time = time_us_64() + FORCE_EXPIRE_DURATION;
}
static void wipe_out_tt_led()
{
sleep_ms(5);
for (int i = 0; i < 128; i++) {
pio_sm_put_blocking(pio1, 0, 0);
}
sleep_ms(5);
}
static uint pio1_offset;
static bool pio1_running = false;
static void pio1_run()
{
gpio_set_drive_strength(TT_RGB_PIN, GPIO_DRIVE_STRENGTH_8MA);
ws2812_program_init(pio1, 0, pio1_offset, TT_RGB_PIN, 800000, false);
}
static void pio1_stop()
{
wipe_out_tt_led();
pio_sm_set_enabled(pio1, 0, false);
gpio_set_function(TT_RGB_PIN, GPIO_FUNC_SIO);
gpio_set_dir(TT_RGB_PIN, GPIO_IN);
gpio_disable_pulls(TT_RGB_PIN);
}
void rgb_init()
{
uint pio0_offset = pio_add_program(pio0, &ws2812_program);
pio1_offset = pio_add_program(pio1, &ws2812_program);
gpio_set_drive_strength(BUTTON_RGB_PIN, GPIO_DRIVE_STRENGTH_2MA);
ws2812_program_init(pio0, 0, pio0_offset, BUTTON_RGB_PIN, 800000, false);
/* We don't start the tt LED program yet */
}
static void follow_mode_change()
{
bool pio1_should_run = (iidx_cfg->tt_led.mode != 2);
if (pio1_should_run == pio1_running) {
return;
}
pio1_running = pio1_should_run;
if (pio1_should_run) {
pio1_run();
} else {
pio1_stop();
}
}
void rgb_update()
{
follow_mode_change();
set_effect(iidx_cfg->tt_led.effect);
if (time_us_64() > force_expire_time) {
effect_update();
button_lights_update();
} else {
force_update();
}
drive_led();
}
void rgb_reg_tt_effect(tt_effect_t effect)
{
effects[effect_num] = effect;
effect_num++;
effects[effect_num] = (tt_effect_t) { trap, trap, trap, 0 };
}

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/*
* RGB LED (WS2812) Strip control
* WHowe <github.com/whowechina>
*/
#ifndef RGB_H
#define RGB_H
#include <stdint.h>
#include <stdbool.h>
#include "config.h"
void rgb_init();
void rgb_set_hardware(uint16_t tt_start, uint16_t tt_num, bool tt_reversed);
uint8_t rgb_button_num();
void rgb_update();
void rgb_set_angle(uint32_t angle);
void rgb_set_level(uint8_t level);
void rgb_set_button_light(uint16_t buttons);
void rgb_set_hid_light(uint8_t const *lights, uint8_t num);
void rgb_force_display(uint32_t *keyboard, uint32_t *tt);
typedef struct {
void (*init)(uint32_t context);
void (*set_angle)(uint32_t angle);
void (*update)(uint32_t context);
uint32_t context;
} tt_effect_t;
void rgb_reg_tt_effect(tt_effect_t effect);
extern uint32_t tt_led_buf[];
#define TT_LED_NUM (iidx_cfg->tt_led.num)
/* These global variables meant to be accessed by effect codes */
extern uint32_t tt_led_angle;
uint32_t button_rgb32(uint32_t r, uint32_t g, uint32_t b, bool gamma_fix);
uint32_t tt_rgb32(uint32_t r, uint32_t g, uint32_t b, bool gamma_fix);
uint32_t button_hsv(hsv_t hsv);
uint32_t tt_hsv(hsv_t hsv);
#endif

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/*
* Controller Save Save and Load
* WHowe <github.com/whowechina>
*
* Save is stored in last sector of flash
*/
#include "save.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdbool.h>
#include <memory.h>
#include "bsp/board.h"
#include "pico/bootrom.h"
#include "pico/stdio.h"
#include "hardware/flash.h"
#include "hardware/sync.h"
static struct {
size_t size;
size_t offset;
void (*after_load)();
} modules[8] = {0};
static int module_num = 0;
#define SAVE_PAGE_MAGIC 0x13424321
#define SAVE_SECTOR_OFFSET (PICO_FLASH_SIZE_BYTES - FLASH_SECTOR_SIZE)
typedef struct __attribute ((packed)) {
uint32_t magic;
uint8_t data[FLASH_PAGE_SIZE - 4];
} page_t;
static page_t old_data = {0};
static page_t new_data = {0};
static page_t default_data = {0};
static int data_page = -1;
static bool requesting_save = false;
static uint64_t requesting_time = 0;
static io_locker_func io_lock;
static void save_program()
{
old_data = new_data;
data_page = (data_page + 1) % (FLASH_SECTOR_SIZE / FLASH_PAGE_SIZE);
printf("Program Flash %d %8lx\n", data_page, old_data.magic);
io_lock(true);
uint32_t ints = save_and_disable_interrupts();
if (data_page == 0) {
flash_range_erase(SAVE_SECTOR_OFFSET, FLASH_SECTOR_SIZE);
}
flash_range_program(SAVE_SECTOR_OFFSET + data_page * FLASH_PAGE_SIZE,
(uint8_t *)&old_data, FLASH_PAGE_SIZE);
restore_interrupts(ints);
io_lock(false);
}
static void load_default()
{
printf("Load Default\n");
new_data = default_data;
new_data.magic = SAVE_PAGE_MAGIC;
}
static const page_t *get_page(int id)
{
int addr = XIP_BASE + SAVE_SECTOR_OFFSET;
return (page_t *)(addr + FLASH_PAGE_SIZE * id);
}
static void save_load()
{
for (int i = 0; i < FLASH_SECTOR_SIZE / FLASH_PAGE_SIZE; i++) {
if (get_page(i)->magic != SAVE_PAGE_MAGIC) {
break;
}
data_page = i;
}
if (data_page < 0) {
load_default();
save_request(false);
return;
}
old_data = *get_page(data_page);
new_data = old_data;
printf("Page Loaded %d %8lx\n", data_page, new_data.magic);
}
static void save_loaded()
{
for (int i = 0; i < module_num; i++) {
modules[i].after_load();
}
}
void save_init(io_locker_func locker)
{
io_lock = locker;
save_load();
save_loop();
save_loaded();
}
void save_loop()
{
if (requesting_save && (time_us_64() - requesting_time > 1000000)) {
requesting_save = false;
printf("Time to save.\n");
/* only when data is actually changed */
for (int i = 0; i < sizeof(old_data); i++) {
if (((uint8_t *)&old_data)[i] != ((uint8_t *)&new_data)[i]) {
save_program();
return;
}
}
printf("No change.\n");
}
}
void *save_alloc(size_t size, void *def, void (*after_load)())
{
modules[module_num].size = size;
size_t offset = module_num > 0 ? modules[module_num - 1].offset + size : 0;
modules[module_num].offset = offset;
modules[module_num].after_load = after_load;
module_num++;
memcpy(default_data.data + offset, def, size); // backup the default
return new_data.data + offset;
}
void save_request(bool immediately)
{
if (!requesting_save) {
printf("Save marked.\n");
requesting_save = true;
new_data.magic = SAVE_PAGE_MAGIC;
requesting_time = time_us_64();
}
if (immediately) {
requesting_time = 0;
save_loop();
}
}

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/*
* Controller Flash Save and Load
* WHowe <github.com/whowechina>
*/
#ifndef SAVE_H
#define SAVE_H
#include <stdlib.h>
#include <stdbool.h>
/* It's safer to lock other I/O ops during saving, so we need a locker */
typedef void (*io_locker_func)(bool pause);
void save_init(io_locker_func locker);
void save_loop();
void *save_alloc(size_t size, void *def, void (*after_load)());
void save_request(bool immediately);
#endif

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/*
* Controller Setup Menu
* WHowe <github.com/whowechina>
*
* Setup is a mode, so one can change settings live
*/
#include "setup.h"
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include "bsp/board.h"
#include "pico/bootrom.h"
#include "rgb.h"
#include "config.h"
static iidx_cfg_t cfg_save;
static uint64_t setup_tick_ms = 0;
#define CONCAT(a, b) a ## b
#define TVAR(line) CONCAT(a, line)
#define RUN_EVERY_N_MS(a, ms) { static uint64_t TVAR(__LINE__) = 0; \
if (setup_tick_ms - TVAR(__LINE__) >= ms) { a; TVAR(__LINE__) = setup_tick_ms; } }
static uint32_t blink_fast = 0xffffffff;
static uint32_t blink_slow = 0xffffffff;
uint32_t setup_led_tt[128];
uint32_t setup_led_button[BUTTON_RGB_NUM];
typedef enum {
MODE_NONE,
MODE_TURNTABLE,
MODE_ANALOG,
MODE_LEVEL,
MODE_TT_THEME,
MODE_KEY_THEME,
MODE_KEY_OFF,
MODE_KEY_ON,
} setup_mode_t;
static setup_mode_t current_mode = MODE_NONE;
static struct {
uint16_t last_keys;
uint16_t keys;
uint16_t just_pressed;
uint16_t just_released;
int16_t last_angle;
int16_t angle;
int16_t rotate;
} input = { 0 };
#define KEY_1 0x0001
#define KEY_2 0x0002
#define KEY_3 0x0004
#define KEY_4 0x0008
#define KEY_5 0x0010
#define KEY_6 0x0020
#define KEY_7 0x0040
#define E1 0x0080
#define E2 0x0100
#define E3 0x0200
#define E4 0x0400
#define AUX_NO 0x0800
#define AUX_YES 0x1000
#define LED_KEY_1 0
#define LED_KEY_2 1
#define LED_KEY_3 2
#define LED_KEY_4 3
#define LED_KEY_5 4
#define LED_KEY_6 5
#define LED_KEY_7 6
#define LED_E1 7
#define LED_E2 8
#define LED_E3 9
#define LED_E4 10
#define PRESSED_ALL(k) ((input.keys & (k)) == (k))
#define PRESSED_ANY(k) (input.keys & (k))
#define JUST_PRESSED(k) (input.just_pressed & (k))
#define JUST_RELEASED(k) (input.just_released & (k))
#define RED button_rgb32(99, 0, 0, false)
#define GREEN button_rgb32(0, 99, 0, false)
#define CYAN button_rgb32(0, 40, 99, false)
#define YELLOW button_rgb32(99, 99, 0, false)
#define SILVER button_rgb32(60, 60, 60, false)
#define TT_RED tt_rgb32(99, 0, 0, false)
#define TT_GREEN tt_rgb32(0, 99, 0, false)
#define TT_CYAN tt_rgb32(0, 40, 99, false)
#define TT_YELLOW tt_rgb32(99, 99, 0, false)
#define TT_SILVER tt_rgb32(60, 60, 60, false)
typedef void (*mode_func)();
static void join_mode(setup_mode_t new_mode);
static void quit_mode(bool apply);
static void nop()
{
}
static void check_exit()
{
if (JUST_PRESSED(AUX_YES)) {
quit_mode(true);
} else if (JUST_PRESSED(AUX_NO)) {
quit_mode(false);
}
}
static int16_t input_delta(int16_t start_angle)
{
int16_t delta = input.angle - start_angle;
if (delta > 128) {
delta -= 256;
}
if (delta < -128) {
delta += 256;
}
return delta;
}
static setup_mode_t key_to_mode[11] = {
MODE_KEY_THEME, MODE_TT_THEME, MODE_KEY_ON, MODE_KEY_OFF,
MODE_NONE, MODE_NONE, MODE_NONE,
MODE_ANALOG, MODE_ANALOG, MODE_ANALOG, MODE_ANALOG,
};
static struct {
bool escaped;
uint64_t escape_time;
uint16_t start_angle;
} none_ctx = { 0 };
static void none_rotate()
{
if (!none_ctx.escaped) {
return;
}
int16_t delta = input_delta(none_ctx.start_angle);
if (abs(delta) > 10) {
join_mode(MODE_LEVEL);
none_ctx.escaped = false;
}
}
static void none_loop()
{
if (PRESSED_ALL(AUX_YES | AUX_NO)) {
if (!none_ctx.escaped) {
none_ctx.escaped = true;
none_ctx.escape_time = time_us_64();
none_ctx.start_angle = input.angle;
}
} else {
none_ctx.escaped = false;
}
if (!none_ctx.escaped) {
return;
}
for (int i = 0; i < 11; i++) {
if (PRESSED_ANY(KEY_1 << i)) {
none_ctx.escaped = false;
join_mode(key_to_mode[i]);
return;
}
}
if (time_us_64() - none_ctx.escape_time > 5000000) {
none_ctx.escaped = false;
join_mode(MODE_TURNTABLE);
return;
}
}
static struct {
uint8_t adjust_led; /* 0: nothing, 1: adjust start, 2: adjust stop */
int16_t start_angle;
} tt_ctx;
static void tt_enter()
{
tt_ctx.start_angle = input.angle;
}
static void tt_key_change()
{
if (JUST_PRESSED(E1)) {
tt_ctx.adjust_led = (tt_ctx.adjust_led == 1) ? 0 : 1;
tt_ctx.start_angle = input.angle;
} else if (JUST_PRESSED(E2)) {
tt_ctx.adjust_led = (tt_ctx.adjust_led == 2) ? 0 : 2;
tt_ctx.start_angle = input.angle;
} else if (JUST_PRESSED(E3)) {
iidx_cfg->tt_led.mode = (iidx_cfg->tt_led.mode + 1) % 3;
} else if (JUST_PRESSED(E4)) {
iidx_cfg->tt_sensor.mode = (iidx_cfg->tt_sensor.mode + 1) % 4;
} else if (JUST_PRESSED(KEY_2)) {
iidx_cfg->tt_sensor.deadzone = 0;
} else if (JUST_PRESSED(KEY_4)) {
iidx_cfg->tt_sensor.deadzone = 1;
} else if (JUST_PRESSED(KEY_6)) {
iidx_cfg->tt_sensor.deadzone = 2;
} else if (JUST_PRESSED(KEY_1)) {
iidx_cfg->tt_sensor.ppr = 0;
} else if (JUST_PRESSED(KEY_3)) {
iidx_cfg->tt_sensor.ppr = 1;
} else if (JUST_PRESSED(KEY_5)) {
iidx_cfg->tt_sensor.ppr = 2;
} else if (JUST_PRESSED(KEY_7)) {
iidx_cfg->tt_sensor.ppr = 3;
}
check_exit();
}
static void tt_rotate()
{
int16_t delta = input_delta(tt_ctx.start_angle);
if (abs(delta) > 8) {
tt_ctx.start_angle = input.angle;
#define LED_START iidx_cfg->tt_led.start
#define LED_NUM iidx_cfg->tt_led.num
if (tt_ctx.adjust_led == 1) {
if ((delta > 0) & (LED_START < 8)) {
LED_START++;
if (LED_NUM > 1) {
LED_NUM--;
}
} else if ((delta < 0) & (LED_START > 0)) {
LED_START--;
LED_NUM++;
}
} else if (tt_ctx.adjust_led == 2) {
if ((delta > 0) & (LED_NUM + LED_START < 128)) {
LED_NUM++;
} else if ((delta < 0) & (LED_NUM > 1)) { // at least 1 led
LED_NUM--;
}
}
}
}
static void tt_loop()
{
for (int i = 1; i < iidx_cfg->tt_led.num - 1; i++) {
setup_led_tt[i] = tt_rgb32(10, 10, 10, false);
}
bool led_reversed = (iidx_cfg->tt_led.mode == 1);
int head = led_reversed ? TT_LED_NUM - 1 : 0;
int tail = led_reversed ? 0 : TT_LED_NUM - 1;
setup_led_tt[head] = tt_rgb32(0xa0, 0, 0, false);
setup_led_tt[tail] = tt_rgb32(0, 0xa0, 0, false);
setup_led_button[LED_E2] = button_rgb32(0, 10, 0, false);
setup_led_button[LED_E1] = button_rgb32(10, 0, 0, false);
if (tt_ctx.adjust_led == 1) {
setup_led_tt[head] &= blink_fast;
setup_led_button[LED_E1] = RED & blink_fast;
} else if (tt_ctx.adjust_led == 2) {
setup_led_tt[tail] &= blink_fast;
setup_led_button[LED_E2] = GREEN & blink_fast;
}
switch (iidx_cfg->tt_led.mode) {
case 0:
setup_led_button[LED_E3] = GREEN;
break;
case 1:
setup_led_button[LED_E3] = RED;
break;
default:
setup_led_button[LED_E3] = 0;
break;
}
switch (iidx_cfg->tt_sensor.mode) {
case 0:
setup_led_button[LED_E4] = GREEN;
break;
case 1:
setup_led_button[LED_E4] = RED;
break;
case 2:
setup_led_button[LED_E4] = CYAN;
break;
default:
setup_led_button[LED_E4] = YELLOW;
break;
}
setup_led_button[LED_KEY_2] = iidx_cfg->tt_sensor.deadzone == 0 ? SILVER : 0;
setup_led_button[LED_KEY_4] = iidx_cfg->tt_sensor.deadzone == 1 ? SILVER : 0;
setup_led_button[LED_KEY_6] = iidx_cfg->tt_sensor.deadzone == 2 ? SILVER : 0;
setup_led_button[LED_KEY_1] = iidx_cfg->tt_sensor.ppr == 0 ? SILVER : 0;
setup_led_button[LED_KEY_3] = iidx_cfg->tt_sensor.ppr == 1 ? SILVER : 0;
setup_led_button[LED_KEY_5] = iidx_cfg->tt_sensor.ppr == 2 ? SILVER : 0;
setup_led_button[LED_KEY_7] = iidx_cfg->tt_sensor.ppr == 3 ? SILVER : 0;
}
static void level_rotate()
{
int16_t new_value = iidx_cfg->level;
new_value += input.rotate;
if (new_value < 0) {
new_value = 0;
} else if (new_value > 255) {
new_value = 255;
}
iidx_cfg->level = new_value;
printf("Level: %d\n", iidx_cfg->level);
}
static void level_key_change()
{
if (JUST_PRESSED(KEY_1)) {
iidx_cfg->level = 0;
} else if (JUST_PRESSED(KEY_2)) {
iidx_cfg->level = 20;
} else if (JUST_PRESSED(KEY_3)) {
iidx_cfg->level = 50;
} else if (JUST_PRESSED(KEY_4)) {
iidx_cfg->level = 85;
} else if (JUST_PRESSED(KEY_5)) {
iidx_cfg->level = 130;
} else if (JUST_PRESSED(KEY_6)) {
iidx_cfg->level = 190;
} else if (JUST_PRESSED(KEY_7)) {
iidx_cfg->level = 255;
}
check_exit();
}
static void level_loop()
{
for (int i = 0; i < 7; i++) {
hsv_t key_color = {i * 255 / 7, 255, 255 };
setup_led_button[i] = button_hsv(key_color);
}
uint16_t pos = iidx_cfg->level * iidx_cfg->tt_led.num / 256;
for (unsigned i = 0; i < iidx_cfg->tt_led.num; i++) {
setup_led_tt[i] = (i == pos) ? tt_rgb32(90, 90, 90, false) : 0;
}
}
static struct {
uint8_t channel; /* 0:E1(Start), 1:E2(Effect), 2:E3(VEFX), 3:E4 */
volatile uint8_t *value;
int16_t start_angle;
} analog_ctx;
static void analog_key_change()
{
if (JUST_PRESSED(E1)) {
analog_ctx.channel = 0;
analog_ctx.value = &iidx_cfg->effects.e1;
} else if (JUST_PRESSED(E2)) {
analog_ctx.channel = 1;
analog_ctx.value = &iidx_cfg->effects.e2;
} else if (JUST_PRESSED(E3)) {
analog_ctx.channel = 2;
analog_ctx.value = &iidx_cfg->effects.e3;
} else if (JUST_PRESSED(E4)) {
analog_ctx.channel = 3;
analog_ctx.value = &iidx_cfg->effects.e4;
} else if (JUST_PRESSED(KEY_1)) {
*analog_ctx.value = 0;
} else if (JUST_PRESSED(KEY_2)) {
*analog_ctx.value = 43;
} else if (JUST_PRESSED(KEY_3)) {
*analog_ctx.value = 85;
} else if (JUST_PRESSED(KEY_4)) {
*analog_ctx.value = 128;
} else if (JUST_PRESSED(KEY_5)) {
*analog_ctx.value = 170;
} else if (JUST_PRESSED(KEY_6)) {
*analog_ctx.value = 213;
} else if (JUST_PRESSED(KEY_7)) {
*analog_ctx.value = 255;
}
check_exit();
}
static void analog_enter()
{
analog_key_change();
}
static void analog_rotate()
{
int16_t new_value = *analog_ctx.value;
new_value += input.rotate;
if (new_value < 0) {
new_value = 0;
} else if (new_value > 255) {
new_value = 255;
}
*analog_ctx.value = new_value;
}
static uint32_t scale_color(uint32_t color, uint8_t value, uint8_t factor)
{
uint8_t r = (color >> 16) & 0xff;
uint8_t g = (color >> 8) & 0xff;
uint8_t b = color & 0xff;
r = (r * value) / factor;
g = (g * value) / factor;
b = (b * value) / factor;
return (r << 16) | (g << 8) | b;
}
static void analog_loop()
{
uint32_t colors[4] = { RED, GREEN, CYAN, YELLOW};
uint32_t tt_colors[4] = { TT_RED, TT_GREEN, TT_CYAN, TT_YELLOW };
for (int i = 0; i < 4; i++) {
uint32_t color = colors[i];
if (analog_ctx.channel == i) {
color &= blink_fast;
}
setup_led_button[LED_E1 + i] = color;
}
int tt_split = (int)*analog_ctx.value * iidx_cfg->tt_led.num / 255;
for (int i = 1; i < iidx_cfg->tt_led.num - 1; i++) {
setup_led_tt[i] = i < tt_split ? tt_colors[analog_ctx.channel] : 0;
}
int button_split = *analog_ctx.value / 37;
int scale = *analog_ctx.value % 37;
for (int i = 0; i < 7; i++) {
uint32_t color = colors[analog_ctx.channel];
if (i == button_split) {
color = scale_color(color, scale, 37);
} else if (i > button_split) {
color = 0;
}
setup_led_button[LED_KEY_1 + i] = color;
}
}
static struct {
uint8_t phase; /* 0:H, 1:S, 2:V */
hsv_t hsv;
uint8_t *value;
int16_t start_angle;
uint16_t keys;
hsv_t *leds;
} key_ctx;
static void key_apply()
{
for (int i = 0; i < 11; i++) {
if (key_ctx.keys & (1 << i)) {
key_ctx.leds[i] = key_ctx.hsv;
}
}
}
static void key_change()
{
if (JUST_PRESSED(AUX_NO)) {
quit_mode(false);
return;
}
if (JUST_PRESSED(AUX_YES)) {
key_ctx.phase++;
if (key_ctx.phase == 3) {
key_apply();
quit_mode(true);
return;
}
if (key_ctx.phase == 1) {
key_ctx.value = &key_ctx.hsv.s;
} else {
key_ctx.value = &key_ctx.hsv.v;
}
return;
}
key_ctx.keys ^= input.just_pressed;
}
static void key_rotate()
{
int16_t new_value = *key_ctx.value;
new_value += input.rotate;
if (key_ctx.phase > 0) {
if (new_value < 0) {
new_value = 0;
} else if (new_value > 255) {
new_value = 255;
}
}
*key_ctx.value = (uint8_t)new_value;
}
static void key_loop()
{
for (int i = 0; i < 11; i ++) {
if (key_ctx.keys == 0) {
setup_led_button[i] = button_hsv(key_ctx.hsv) & blink_slow;
} else if (key_ctx.keys & (1 << i)) {
setup_led_button[i] = button_hsv(key_ctx.hsv);
} else {
setup_led_button[i] = 0;
}
}
uint16_t pos = *key_ctx.value * iidx_cfg->tt_led.num / 256;
for (unsigned i = 0; i < iidx_cfg->tt_led.num; i++) {
setup_led_tt[i] = (i == pos) ? tt_rgb32(90, 90, 90, false) : 0;
}
}
static void key_enter()
{
key_ctx = (typeof(key_ctx)) {
.phase = 0,
.hsv = { .h = 200, .s = 255, .v = 128 },
.value = &key_ctx.hsv.h,
.start_angle = input.angle,
.keys = 0,
.leds = iidx_cfg->key_on,
};
if (current_mode == MODE_KEY_OFF) {
key_ctx.hsv = (hsv_t) { .h = 60, .s = 255, .v = 5 };
key_ctx.leds = iidx_cfg->key_off;
}
}
#define K0_WHITE {.v = 5}
#define K0_SKY {.h = 215, .s = 255, .v = 20}
#define K0_RED {.h = 87, .s = 255, .v = 20}
#define K0_GREEN {.h = 0, .s = 255, .v = 20}
#define K1_WHITE {.v = 200}
#define K1_SKY {.h = 215, .s = 255, .v = 230}
#define K1_RED {.h = 87, .s = 255, .v = 230}
#define K1_GREEN {.h = 0, .s = 255, .v = 230}
#define K0_RAINBOW(x) {.h = 23 * x, .s = 255, .v = 20}
#define K1_RAINBOW(x) {.h = 23 * x, .s = 255, .v = 230}
static struct {
hsv_t key_off[11];
hsv_t key_on[11];
} themes[7] = {
{{ { 0 }, },
{ K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE,
K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE },
},
{{ { 0 }, },
{ K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE,
K1_RED, K1_GREEN, K1_GREEN, K1_SKY },
},
{{ { 0 }, },
{ K1_RED, K1_SKY, K1_RED, K1_SKY, K1_RED, K1_SKY, K1_RED,
K1_RED, K1_GREEN, K1_GREEN, K1_GREEN },
},
{{ K0_WHITE, K0_WHITE, K0_WHITE, K0_WHITE, K0_WHITE, K0_WHITE, K0_WHITE,
K0_WHITE, K0_WHITE, K0_WHITE, K0_WHITE },
{ K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE,
K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE },
},
{{ K0_RED, K0_SKY, K0_RED, K0_SKY, K0_RED, K0_SKY, K0_RED,
K0_RED, K0_GREEN, K0_GREEN, K0_GREEN },
{ K1_RED, K1_SKY, K1_RED, K1_SKY, K1_RED, K1_SKY, K1_RED,
K1_RED, K1_GREEN, K1_GREEN, K1_GREEN },
},
{{ K0_RAINBOW(0), K0_RAINBOW(1), K0_RAINBOW(2), K0_RAINBOW(3),
K0_RAINBOW(4), K0_RAINBOW(5), K0_RAINBOW(6),
K0_RAINBOW(7), K0_RAINBOW(8), K0_RAINBOW(9), K0_RAINBOW(10)
},
{ K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE,
K1_WHITE, K1_WHITE, K1_WHITE, K1_WHITE },
},
{{ K0_RAINBOW(0), K0_RAINBOW(1), K0_RAINBOW(2), K0_RAINBOW(3),
K0_RAINBOW(4), K0_RAINBOW(5), K0_RAINBOW(6),
K0_RAINBOW(7), K0_RAINBOW(8), K0_RAINBOW(9), K0_RAINBOW(10)
},
{ K1_RAINBOW(0), K1_RAINBOW(1), K1_RAINBOW(2), K1_RAINBOW(3),
K1_RAINBOW(4), K1_RAINBOW(5), K1_RAINBOW(6),
K1_RAINBOW(7), K1_RAINBOW(8), K1_RAINBOW(9), K1_RAINBOW(10)
}
},
};
static void key_theme_key_change()
{
for (int i = 0; i < 7; i++) {
if (JUST_PRESSED(KEY_1 << i)) {
memcpy(iidx_cfg->key_off, themes[i].key_off, sizeof(iidx_cfg->key_off));
memcpy(iidx_cfg->key_on, themes[i].key_on, sizeof(iidx_cfg->key_on));
break;
}
}
check_exit();
}
static void key_theme_loop()
{
for (int i = 0; i < 11; i++) {
if (blink_slow) {
setup_led_button[i] = button_hsv(iidx_cfg->key_on[i]);
} else {
setup_led_button[i] = button_hsv(iidx_cfg->key_off[i]);
}
}
}
static void tt_theme_key_change()
{
for (int i = 0; i < 7; i++) {
if (JUST_PRESSED(KEY_1 << i)) {
iidx_cfg->tt_led.effect = i;
break;
}
}
check_exit();
}
static void tt_theme_loop()
{
for (int i = 0; i < 7; i++) {
setup_led_button[i] = iidx_cfg->tt_led.effect == i ? SILVER : 0;
}
}
static struct {
mode_func key_change;
mode_func rotate;
mode_func loop;
mode_func enter;
} mode_defs[] = {
[MODE_NONE] = { nop, none_rotate, none_loop, nop},
[MODE_TURNTABLE] = { tt_key_change, tt_rotate, tt_loop, tt_enter},
[MODE_ANALOG] = { analog_key_change, analog_rotate, analog_loop, analog_enter},
[MODE_LEVEL] = { level_key_change, level_rotate, level_loop, nop},
[MODE_TT_THEME] = { tt_theme_key_change, nop, tt_theme_loop, nop},
[MODE_KEY_THEME] = { key_theme_key_change, nop, key_theme_loop, nop},
[MODE_KEY_OFF] = { key_change, key_rotate, key_loop, key_enter},
[MODE_KEY_ON] = { key_change, key_rotate, key_loop, key_enter},
};
static void join_mode(setup_mode_t new_mode)
{
cfg_save = *iidx_cfg;
memset(&setup_led_tt, 0, sizeof(setup_led_tt));
memset(&setup_led_button, 0, sizeof(setup_led_button));
current_mode = new_mode;
mode_defs[current_mode].enter();
printf("Entering setup %d\n", new_mode);
}
static void quit_mode(bool apply)
{
if (apply) {
config_changed();
} else {
*iidx_cfg = cfg_save;
}
current_mode = MODE_NONE;
printf("Quit setup %s\n", apply ? "saved." : "discarded.");
}
bool setup_run(uint16_t keys, uint16_t angle)
{
setup_tick_ms = time_us_64() / 1000;
input.keys = keys;
input.angle = angle;
input.just_pressed = keys & ~input.last_keys;
input.just_released = ~keys & input.last_keys;
input.rotate = input_delta(input.last_angle);
if (input.rotate != 0) {
printf("@ %3d %2x\n", input.rotate, input.angle);
mode_defs[current_mode].rotate();
}
if (input.just_pressed) {
printf("+ %04x\n", input.just_pressed);
}
if (input.just_released) {
printf("- %04x\n", input.just_released);
}
if (input.just_pressed || input.just_released) {
mode_defs[current_mode].key_change();
}
RUN_EVERY_N_MS(blink_fast = ~blink_fast, 100);
RUN_EVERY_N_MS(blink_slow = ~blink_slow, 500);
mode_defs[current_mode].loop();
input.last_keys = keys;
input.last_angle = angle;
return current_mode != MODE_NONE;
}
void setup_init()
{
}

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/*
* Controller Setup
* WHowe <github.com/whowechina>
*/
#ifndef SETUP_H
#define SETUP_H
#include <stdint.h>
#include <stdbool.h>
#include "board_defs.h"
void setup_init();
bool setup_run(uint16_t key_flag, uint16_t tt_angle);
extern uint32_t setup_led_tt[];
extern uint32_t setup_led_button[BUTTON_RGB_NUM];
#endif

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/*
* The MIT License (MIT)
*
* Copyright (c) 2019 Ha Thach (tinyusb.org)
*
* 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.
*
*/
#ifndef _TUSB_CONFIG_H_
#define _TUSB_CONFIG_H_
#ifdef __cplusplus
extern "C" {
#endif
//--------------------------------------------------------------------
// COMMON CONFIGURATION
//--------------------------------------------------------------------
// defined by board.mk
#ifndef CFG_TUSB_MCU
#error CFG_TUSB_MCU must be defined
#endif
// RHPort number used for device can be defined by board.mk, default to port 0
#ifndef BOARD_DEVICE_RHPORT_NUM
#define BOARD_DEVICE_RHPORT_NUM 0
#endif
// RHPort max operational speed can defined by board.mk
// Default to Highspeed for MCU with internal HighSpeed PHY (can be port
// specific), otherwise FullSpeed
#ifndef BOARD_DEVICE_RHPORT_SPEED
#if (CFG_TUSB_MCU == OPT_MCU_LPC18XX || CFG_TUSB_MCU == OPT_MCU_LPC43XX || \
CFG_TUSB_MCU == OPT_MCU_MIMXRT10XX || CFG_TUSB_MCU == OPT_MCU_NUC505 || \
CFG_TUSB_MCU == OPT_MCU_CXD56)
#define BOARD_DEVICE_RHPORT_SPEED OPT_MODE_HIGH_SPEED
#else
#define BOARD_DEVICE_RHPORT_SPEED OPT_MODE_FULL_SPEED
#endif
#endif
// Device mode with rhport and speed defined by board.mk
#if BOARD_DEVICE_RHPORT_NUM == 0
#define CFG_TUSB_RHPORT0_MODE (OPT_MODE_DEVICE | BOARD_DEVICE_RHPORT_SPEED)
#elif BOARD_DEVICE_RHPORT_NUM == 1
#define CFG_TUSB_RHPORT1_MODE (OPT_MODE_DEVICE | BOARD_DEVICE_RHPORT_SPEED)
#else
#error "Incorrect RHPort configuration"
#endif
#ifndef CFG_TUSB_OS
#define CFG_TUSB_OS OPT_OS_NONE
#endif
// CFG_TUSB_DEBUG is defined by compiler in DEBUG build
// #define CFG_TUSB_DEBUG 0
/* USB DMA on some MCUs can only access a specific SRAM region with restriction
* on alignment. Tinyusb use follows macros to declare transferring memory so
* that they can be put into those specific section. e.g
* - CFG_TUSB_MEM SECTION : __attribute__ (( section(".usb_ram") ))
* - CFG_TUSB_MEM_ALIGN : __attribute__ ((aligned(4)))
*/
#ifndef CFG_TUSB_MEM_SECTION
#define CFG_TUSB_MEM_SECTION
#endif
#ifndef CFG_TUSB_MEM_ALIGN
#define CFG_TUSB_MEM_ALIGN __attribute__((aligned(4)))
#endif
//--------------------------------------------------------------------
// DEVICE CONFIGURATION
//--------------------------------------------------------------------
#ifndef CFG_TUD_ENDPOINT0_SIZE
#define CFG_TUD_ENDPOINT0_SIZE 64
#endif
//------------- CLASS -------------//
#define CFG_TUD_HID 1
#define CFG_TUD_CDC 1
#define CFG_TUD_MSC 0
#define CFG_TUD_MIDI 0
#define CFG_TUD_VENDOR 0
// HID buffer size Should be sufficient to hold ID (if any) + Data
#define CFG_TUD_HID_EP_BUFSIZE 64
#define CFG_TUD_VENDOR 0
// HID buffer size Should be sufficient to hold ID (if any) + Data
#define CFG_TUD_HID_EP_BUFSIZE 64
// CDC FIFO size of TX and RX
#define CFG_TUD_CDC_RX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
#define CFG_TUD_CDC_TX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
// CDC Endpoint transfer buffer size, more is faster
#define CFG_TUD_CDC_EP_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
#ifdef __cplusplus
}
#endif
#endif /* _TUSB_CONFIG_H_ */

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/*
* The MIT License (MIT)
*
* Copyright (c) 2019 Ha Thach (tinyusb.org)
*
* 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 "usb_descriptors.h"
#include "tusb.h"
/* A combination of interfaces must have a unique product id, since PC will save
* device driver after the first plug. Same VID/PID with different interface e.g
* MSC (first), then CDC (later) will possibly cause system error on PC.
*
* Auto ProductID layout's Bitmap:
* [MSB] HID | MSC | CDC [LSB]
*/
#define _PID_MAP(itf, n) ((CFG_TUD_##itf) << (n))
#define USB_PID \
(0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) | \
_PID_MAP(MIDI, 3) | _PID_MAP(VENDOR, 4))
//--------------------------------------------------------------------+
// Device Descriptors
//--------------------------------------------------------------------+
tusb_desc_device_t desc_device_joy = {
.bLength = sizeof(tusb_desc_device_t),
.bDescriptorType = TUSB_DESC_DEVICE,
.bcdUSB = 0x0200,
.bDeviceClass = 0x00,
.bDeviceSubClass = 0x00,
.bDeviceProtocol = 0x00,
.bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE,
.idVendor = 0xCaff,
.idProduct = USB_PID,
.bcdDevice = 0x0100,
.iManufacturer = 0x01,
.iProduct = 0x02,
.iSerialNumber = 0x03,
.bNumConfigurations = 0x01};
// Invoked when received GET DEVICE DESCRIPTOR
// Application return pointer to descriptor
uint8_t const* tud_descriptor_device_cb(void) {
return (uint8_t const*)&desc_device_joy;
}
//--------------------------------------------------------------------+
// HID Report Descriptor
//--------------------------------------------------------------------+
uint8_t const desc_hid_report_joy[] = {
GAMECON_REPORT_DESC_JOYSTICK(HID_REPORT_ID(REPORT_ID_JOYSTICK)),
GAMECON_REPORT_DESC_LIGHTS(HID_REPORT_ID(REPORT_ID_LIGHTS))
};
// Invoked when received GET HID REPORT DESCRIPTOR
// Application return pointer to descriptor
// Descriptor contents must exist long enough for transfer to complete
uint8_t const* tud_hid_descriptor_report_cb(uint8_t itf) {
(void)itf;
return desc_hid_report_joy;
}
//--------------------------------------------------------------------+
// Configuration Descriptor
//--------------------------------------------------------------------+
enum { ITF_NUM_HID, ITF_NUM_CDC, ITF_NUM_CDC_DATA, ITF_NUM_TOTAL };
#define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_HID_DESC_LEN + TUD_CDC_DESC_LEN)
#define EPNUM_HID 0x84
#define EPNUM_CDC_NOTIF 0x81
#define EPNUM_CDC_OUT 0x02
#define EPNUM_CDC_IN 0x82
uint8_t const desc_configuration_joy[] = {
// Config number, interface count, string index, total length, attribute,
// power in mA
TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN,
TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
// Interface number, string index, protocol, report descriptor len, EP In
// address, size & polling interval
TUD_HID_DESCRIPTOR(ITF_NUM_HID, 0, HID_ITF_PROTOCOL_NONE,
sizeof(desc_hid_report_joy), EPNUM_HID,
CFG_TUD_HID_EP_BUFSIZE, 1),
TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, EPNUM_CDC_NOTIF,
8, EPNUM_CDC_OUT, EPNUM_CDC_IN, 64)
};
// Invoked when received GET CONFIGURATION DESCRIPTOR
// Application return pointer to descriptor
// Descriptor contents must exist long enough for transfer to complete
uint8_t const* tud_descriptor_configuration_cb(uint8_t index) {
(void)index; // for multiple configurations
return desc_configuration_joy;
}
//--------------------------------------------------------------------+
// String Descriptors
//--------------------------------------------------------------------+
// array of pointer to string descriptors
const char *string_desc_arr[] = {
(const char[]){0x09, 0x04}, // 0: is supported language is English (0x0409)
"WHowe" , // 1: Manufacturer
"Pico IIDX Controller", // 2: Product
"654321", // 3: Serials, should use chip ID
"Button 1",
"Button 2",
"Button 3",
"Button 4",
"Button 5",
"Button 6",
"Button 7",
"E1",
"E2",
"E3",
"E4"
};
static uint16_t _desc_str[64];
// Invoked when received GET STRING DESCRIPTOR request
// Application return pointer to descriptor, whose contents must exist long
// enough for transfer to complete
uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
(void)langid;
uint8_t chr_count;
if (index == 0) {
memcpy(&_desc_str[1], string_desc_arr[0], 2);
chr_count = 1;
} else {
// Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
// https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
if (index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0])) {
const char* str = string_desc_arr[index];
// Cap at max char
chr_count = strlen(str);
if (chr_count > 63) chr_count = 63;
// Convert ASCII string into UTF-16
for (uint8_t i = 0; i < chr_count; i++) {
_desc_str[1 + i] = str[i];
}
} else {
_desc_str[1] = 'X';
chr_count = 1;
}
}
// first byte is length (including header), second byte is string type
_desc_str[0] = (TUSB_DESC_STRING << 8) | (2 * chr_count + 2);
return _desc_str;
}
void konami_mode()
{
desc_device_joy.idVendor = 0x1ccf;
desc_device_joy.idProduct = 0x8048;
string_desc_arr[1] = "Konami Amusement";
string_desc_arr[2] = "beatmania IIDX controller premium model";
}

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#ifndef USB_DESCRIPTORS_H_
#define USB_DESCRIPTORS_H_
#include "common/tusb_common.h"
#include "device/usbd.h"
enum {
REPORT_ID_JOYSTICK = 1,
REPORT_ID_LIGHTS,
REPORT_ID_KEYBOARD,
REPORT_ID_MOUSE,
};
// because they are missing from tusb_hid.h
#define HID_STRING_INDEX(x) HID_REPORT_ITEM(x, 7, RI_TYPE_LOCAL, 1)
#define HID_STRING_INDEX_N(x, n) HID_REPORT_ITEM(x, 7, RI_TYPE_LOCAL, n)
#define HID_STRING_MINIMUM(x) HID_REPORT_ITEM(x, 8, RI_TYPE_LOCAL, 1)
#define HID_STRING_MINIMUM_N(x, n) HID_REPORT_ITEM(x, 8, RI_TYPE_LOCAL, n)
#define HID_STRING_MAXIMUM(x) HID_REPORT_ITEM(x, 9, RI_TYPE_LOCAL, 1)
#define HID_STRING_MAXIMUM_N(x, n) HID_REPORT_ITEM(x, 9, RI_TYPE_LOCAL, n)
// Joystick Report Descriptor Template - Based off Drewol/rp2040-gamecon
// Button Map | X | Y
#define GAMECON_REPORT_DESC_JOYSTICK(...) \
HID_USAGE_PAGE(HID_USAGE_PAGE_DESKTOP), \
HID_USAGE(HID_USAGE_DESKTOP_JOYSTICK), \
HID_COLLECTION(HID_COLLECTION_APPLICATION), \
__VA_ARGS__ HID_USAGE_PAGE(HID_USAGE_PAGE_BUTTON), HID_USAGE_MIN(1), \
HID_USAGE_MAX(13), \
HID_LOGICAL_MIN(0), HID_LOGICAL_MAX(1), HID_REPORT_COUNT(13), \
HID_REPORT_SIZE(1), HID_INPUT(HID_DATA | HID_VARIABLE | HID_ABSOLUTE), \
HID_REPORT_COUNT(1), HID_REPORT_SIZE(16 - 13), /*Padding*/ \
HID_INPUT(HID_CONSTANT | HID_VARIABLE | HID_ABSOLUTE), \
HID_USAGE_PAGE(HID_USAGE_PAGE_DESKTOP), HID_LOGICAL_MIN(0x00), \
HID_LOGICAL_MAX_N(0x00ff, 2), /* Below is Joystick/analog */ \
HID_USAGE(HID_USAGE_DESKTOP_X), HID_USAGE(HID_USAGE_DESKTOP_Y), \
HID_USAGE(HID_USAGE_DESKTOP_Z), HID_USAGE(HID_USAGE_DESKTOP_RX), \
HID_USAGE(HID_USAGE_DESKTOP_RY), HID_USAGE(HID_USAGE_DESKTOP_RZ), \
HID_REPORT_COUNT(6), HID_REPORT_SIZE(8), \
HID_INPUT(HID_DATA | HID_VARIABLE | HID_ABSOLUTE), HID_COLLECTION_END
// Light Map
#define GAMECON_REPORT_DESC_LIGHTS(...) \
HID_USAGE_PAGE(HID_USAGE_PAGE_DESKTOP), HID_USAGE(0x00), \
HID_COLLECTION(HID_COLLECTION_APPLICATION), \
__VA_ARGS__ HID_REPORT_COUNT(11), /* LED NUM */ \
HID_REPORT_SIZE(8), HID_LOGICAL_MIN(0x00), HID_LOGICAL_MAX_N(0x00ff, 2), \
HID_USAGE_PAGE(HID_USAGE_PAGE_ORDINAL), HID_STRING_MINIMUM(4), \
HID_STRING_MAXIMUM(16), HID_USAGE_MIN(1), HID_USAGE_MAX(16), \
HID_OUTPUT(HID_DATA | HID_VARIABLE | HID_ABSOLUTE), HID_REPORT_COUNT(1), \
HID_REPORT_SIZE(8), /*Padding*/ \
HID_INPUT(HID_CONSTANT | HID_VARIABLE | HID_ABSOLUTE), \
HID_COLLECTION_END
// NKRO Descriptor
#define GAMECON_REPORT_DESC_NKRO(...) \
HID_USAGE_PAGE(HID_USAGE_PAGE_DESKTOP), HID_USAGE(HID_USAGE_PAGE_KEYBOARD), \
HID_COLLECTION(HID_COLLECTION_APPLICATION), \
__VA_ARGS__ HID_REPORT_SIZE(1), HID_REPORT_COUNT(8), \
HID_USAGE_PAGE(HID_USAGE_PAGE_KEYBOARD), HID_USAGE_MIN(224), \
HID_USAGE_MAX(231), HID_LOGICAL_MIN(0), HID_LOGICAL_MAX(1), \
HID_INPUT(HID_VARIABLE), HID_REPORT_SIZE(1), HID_REPORT_COUNT(31 * 8), \
HID_LOGICAL_MIN(0), HID_LOGICAL_MAX(1), \
HID_USAGE_PAGE(HID_USAGE_PAGE_KEYBOARD), HID_USAGE_MIN(0), \
HID_USAGE_MAX(31 * 8 - 1), HID_INPUT(HID_VARIABLE), HID_COLLECTION_END
/* Enable Konami spoof mode */
void konami_mode();
#endif /* USB_DESCRIPTORS_H_ */

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/*
* VL6180X Distance measurement sensor
* WHowe <github.com/whowechina>
*/
#ifndef VL6180_H
#define VL6180_H
#include "hardware/i2c.h"
#include "vl6180.h"
#define VL6180_DEF_ADDR 0x29
void vl6180_write(i2c_inst_t *i2c_port, uint16_t addr, uint8_t data)
{
uint8_t cmd[] = {addr >> 8, addr & 0xff, data};
i2c_write_blocking(i2c_port, VL6180_DEF_ADDR, cmd, 3, false);
}
uint8_t vl6180_read(i2c_inst_t *i2c_port, uint16_t addr)
{
uint8_t cmd[] = {addr >> 8, addr & 0xff, 0};
i2c_write_blocking(i2c_port, VL6180_DEF_ADDR, cmd, 3, true);
sleep_us(1);
uint8_t data;
i2c_read_blocking(i2c_port, VL6180_DEF_ADDR, &data, 1, false);
return data;
}
uint16_t vl6180_read16(i2c_inst_t *i2c_port, uint16_t addr)
{
uint8_t cmd[] = {addr >> 8, addr & 0xff};
i2c_write_blocking(i2c_port, VL6180_DEF_ADDR, cmd, 2, true);
uint8_t data[2];
i2c_read_blocking(i2c_port, VL6180_DEF_ADDR, data, 2, false);
return data[0] << 8 | data[1];
}
void vl6180_init(i2c_inst_t *i2c_port)
{
if (vl6180_read(i2c_port, 0x016) == 1) // reset flag
{
vl6180_write(i2c_port, 0x207, 0x01);
vl6180_write(i2c_port, 0x208, 0x01);
vl6180_write(i2c_port, 0x096, 0x00);
vl6180_write(i2c_port, 0x097, 0xFD); // RANGE_SCALER = 253
vl6180_write(i2c_port, 0x0E3, 0x00);
vl6180_write(i2c_port, 0x0E4, 0x04);
vl6180_write(i2c_port, 0x0E5, 0x02);
vl6180_write(i2c_port, 0x0E6, 0x01);
vl6180_write(i2c_port, 0x0E7, 0x03);
vl6180_write(i2c_port, 0x0F5, 0x02);
vl6180_write(i2c_port, 0x0D9, 0x05);
vl6180_write(i2c_port, 0x0DB, 0xCE);
vl6180_write(i2c_port, 0x0DC, 0x03);
vl6180_write(i2c_port, 0x0DD, 0xF8);
vl6180_write(i2c_port, 0x09F, 0x00);
vl6180_write(i2c_port, 0x0A3, 0x3C);
vl6180_write(i2c_port, 0x0B7, 0x00);
vl6180_write(i2c_port, 0x0BB, 0x3C);
vl6180_write(i2c_port, 0x0B2, 0x09);
vl6180_write(i2c_port, 0x0CA, 0x09);
vl6180_write(i2c_port, 0x198, 0x01);
vl6180_write(i2c_port, 0x1B0, 0x17);
vl6180_write(i2c_port, 0x1AD, 0x00);
vl6180_write(i2c_port, 0x0FF, 0x05);
vl6180_write(i2c_port, 0x100, 0x05);
vl6180_write(i2c_port, 0x199, 0x05);
vl6180_write(i2c_port, 0x1A6, 0x1B);
vl6180_write(i2c_port, 0x1AC, 0x3E);
vl6180_write(i2c_port, 0x1A7, 0x1F);
vl6180_write(i2c_port, 0x030, 0x00);
vl6180_write(i2c_port, 0x011, 0x10);
vl6180_write(i2c_port, 0x10a, 0x30);
vl6180_write(i2c_port, 0x03f, 0x46);
vl6180_write(i2c_port, 0x031, 0xff);
vl6180_write(i2c_port, 0x040, 0x63);
vl6180_write(i2c_port, 0x02e, 0x01);
vl6180_write(i2c_port, 0x01b, 0x00);
vl6180_write(i2c_port, 0x01c, 0x01);
vl6180_write(i2c_port, 0x03e, 0x31);
vl6180_write(i2c_port, 0x014, 0x24);
vl6180_write(i2c_port, 0x016, 0);
}
}
void vl6180_continous(i2c_inst_t *i2c_port)
{
while (vl6180_read(i2c_port, 0x04d) & 1 == 0);
vl6180_write(i2c_port, 0x018, 3); // start/stop continous mode
}
uint8_t vl6180_dist(i2c_inst_t *i2c_port, uint8_t old)
{
while (vl6180_read(i2c_port, 0x04d) & 1 == 0);
return vl6180_read(i2c_port, 0x064);
}
uint16_t vl6180_dist16(i2c_inst_t *i2c_port)
{
return vl6180_read16(i2c_port, 0x064);
}
#endif

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firmware/src/vl6180.h Normal file
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/*
* VL6180X Distance measurement sensor
* WHowe <github.com/whowechina>
*/
#ifndef VL6180_H
#define VL6180_H
#include "hardware/i2c.h"
#define VL6180_DEF_ADDR 0x29
void vl6180_write(i2c_inst_t *i2c_port, uint16_t addr, uint8_t data);
uint8_t vl6180_read(i2c_inst_t *i2c_port, uint16_t addr);
uint16_t vl6180_read16(i2c_inst_t *i2c_port, uint16_t addr);
void vl6180_init(i2c_inst_t *i2c_port);
void vl6180_continous(i2c_inst_t *i2c_port);
uint8_t vl6180_dist(i2c_inst_t *i2c_port, uint8_t old);
uint16_t vl6180_dist16(i2c_inst_t *i2c_port);
#endif

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firmware/src/ws2812.pio Normal file
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;
; Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
;
; SPDX-License-Identifier: BSD-3-Clause
;
.program ws2812
.side_set 1
.define public T1 2
.define public T2 5
.define public T3 3
.lang_opt python sideset_init = pico.PIO.OUT_HIGH
.lang_opt python out_init = pico.PIO.OUT_HIGH
.lang_opt python out_shiftdir = 1
.wrap_target
bitloop:
out x, 1 side 0 [T3 - 1] ; Side-set still takes place when instruction stalls
jmp !x do_zero side 1 [T1 - 1] ; Branch on the bit we shifted out. Positive pulse
do_one:
jmp bitloop side 1 [T2 - 1] ; Continue driving high, for a long pulse
do_zero:
nop side 0 [T2 - 1] ; Or drive low, for a short pulse
.wrap
% c-sdk {
#include "hardware/clocks.h"
static inline void ws2812_program_init(PIO pio, uint sm, uint offset, uint pin, float freq, bool rgbw) {
pio_gpio_init(pio, pin);
pio_sm_set_consecutive_pindirs(pio, sm, pin, 1, true);
pio_sm_config c = ws2812_program_get_default_config(offset);
sm_config_set_sideset_pins(&c, pin);
sm_config_set_out_shift(&c, false, true, rgbw ? 32 : 24);
sm_config_set_fifo_join(&c, PIO_FIFO_JOIN_TX);
int cycles_per_bit = ws2812_T1 + ws2812_T2 + ws2812_T3;
float div = clock_get_hz(clk_sys) / (freq * cycles_per_bit);
sm_config_set_clkdiv(&c, div);
pio_sm_init(pio, sm, offset, &c);
pio_sm_set_enabled(pio, sm, true);
}
%}
.program ws2812_parallel
.define public T1 2
.define public T2 5
.define public T3 3
.wrap_target
out x, 32
mov pins, !null [T1-1]
mov pins, x [T2-1]
mov pins, null [T3-2]
.wrap
% c-sdk {
#include "hardware/clocks.h"
static inline void ws2812_parallel_program_init(PIO pio, uint sm, uint offset, uint pin_base, uint pin_count, float freq) {
for(uint i=pin_base; i<pin_base+pin_count; i++) {
pio_gpio_init(pio, i);
}
pio_sm_set_consecutive_pindirs(pio, sm, pin_base, pin_count, true);
pio_sm_config c = ws2812_parallel_program_get_default_config(offset);
sm_config_set_out_shift(&c, true, true, 32);
sm_config_set_out_pins(&c, pin_base, pin_count);
sm_config_set_set_pins(&c, pin_base, pin_count);
sm_config_set_fifo_join(&c, PIO_FIFO_JOIN_TX);
int cycles_per_bit = ws2812_parallel_T1 + ws2812_parallel_T2 + ws2812_parallel_T3;
float div = clock_get_hz(clk_sys) / (freq * cycles_per_bit);
sm_config_set_clkdiv(&c, div);
pio_sm_init(pio, sm, offset, &c);
pio_sm_set_enabled(pio, sm, true);
}
%}