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// Copyright 2022 Jason Williams (@wilba)
// SPDX-License-Identifier: GPL-2.0-or-later
// This is a test harness for VIA custom UI.
//
// It handles channel IDs 0-7, value IDs 0-7.
//
// It's useful for testing custom UI on a PCB without compiling in
// features, especially features that will cause firmware to freeze
// if the PCB doesn't have support.
//
// To use:
// - add `SRC = keyboards/wilba_tech/via_test.c` to rules.mk
// - add `#define VIA_EEPROM_CUSTOM_CONFIG_SIZE 128` to config.h
// (or change to match CHANNELS*VALUES*2)
#include "quantum.h"
#include "via.h"
#ifdef VIA_ENABLE
#define CHANNELS 8
#define VALUES 8
uint8_t g_value[CHANNELS][VALUES][2];
void values_init(void)
{
for ( uint8_t channel_id = 0; channel_id < CHANNELS; channel_id++ ) {
for ( uint8_t value_id = 0; value_id < VALUES; value_id++ ) {
g_value[channel_id][value_id][0] = 0x00;
g_value[channel_id][value_id][1] = 0x00;
}
}
}
void values_load(void)
{
eeprom_read_block( g_value, ((void*)VIA_EEPROM_CUSTOM_CONFIG_ADDR), VIA_EEPROM_CUSTOM_CONFIG_SIZE );
}
void values_save(void)
{
eeprom_update_block( g_value, ((void*)VIA_EEPROM_CUSTOM_CONFIG_ADDR), VIA_EEPROM_CUSTOM_CONFIG_SIZE );
}
// We do this to test if VIA is sending save commands per channel
// Not relevant for real situations
void values_save_on_channel(uint8_t channel_id)
{
uint16_t offset = channel_id * VALUES * 2;
eeprom_update_block( ((void*)g_value) + offset,
((void*)VIA_EEPROM_CUSTOM_CONFIG_ADDR) + offset,
VALUES * 2 );
}
void via_init_kb(void)
{
values_init();
// If the EEPROM has the magic, the data is good.
// OK to load from EEPROM
if (via_eeprom_is_valid()) {
values_load();
} else {
values_save();
// DO NOT set EEPROM valid here, let caller do this
}
}
void set_value( uint8_t channel_id, uint8_t *data )
{
// data = [ value_id, value_data ]
uint8_t *value_id = &(data[0]);
uint8_t *value_data = &(data[1]);
if ( *value_id >= 0 && *value_id < VALUES ) {
g_value[channel_id][*value_id][0] = value_data[0];
g_value[channel_id][*value_id][1] = value_data[1];
}
}
void get_value( uint8_t channel_id, uint8_t *data )
{
// data = [ value_id, value_data ]
uint8_t *value_id = &(data[0]);
uint8_t *value_data = &(data[1]);
if ( *value_id >= 0 && *value_id < VALUES ) {
value_data[0] = g_value[channel_id][*value_id][0];
value_data[1] = g_value[channel_id][*value_id][1];
}
}
void via_custom_value_command(uint8_t *data, uint8_t length) {
// data = [ command_id, channel_id, value_id, value_data ]
uint8_t *command_id = &(data[0]);
uint8_t *channel_id = &(data[1]);
uint8_t *value_id_and_data = &(data[2]);
if ( *channel_id >= 0 && *channel_id < CHANNELS ) {
switch ( *command_id )
{
case id_custom_set_value:
{
set_value(*channel_id,value_id_and_data);
break;
}
case id_custom_get_value:
{
get_value(*channel_id,value_id_and_data);
break;
}
case id_custom_save:
{
//for ( uint8_t i=0; i<CHANNELS; i++) {
values_save_on_channel(*channel_id);
//}
break;
}
default:
{
// Unhandled message.
*command_id = id_unhandled;
break;
}
}
return;
}
else {
*command_id = id_unhandled;
}
// DO NOT call raw_hid_send(data,length) here, let caller do this
}
#endif // VIA_ENABLE
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