401 lines
14 KiB
C
401 lines
14 KiB
C
/* Copyright 2019 Jason Williams (Wilba)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef RAW_ENABLE
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# error "RAW_ENABLE is not enabled"
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#endif
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#ifndef DYNAMIC_KEYMAP_ENABLE
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# error "DYNAMIC_KEYMAP_ENABLE is not enabled"
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#endif
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#include "quantum.h"
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#include "via.h"
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#include "raw_hid.h"
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#include "dynamic_keymap.h"
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#include "tmk_core/common/eeprom.h"
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#include "version.h" // for QMK_BUILDDATE used in EEPROM magic
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// Can be called in an overriding via_init_kb() to test if keyboard level code usage of
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// EEPROM is invalid and use/save defaults.
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bool via_eeprom_is_valid(void)
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{
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char *p = QMK_BUILDDATE; // e.g. "2019-11-05-11:29:54"
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uint8_t magic0 = ( ( p[2] & 0x0F ) << 4 ) | ( p[3] & 0x0F );
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uint8_t magic1 = ( ( p[5] & 0x0F ) << 4 ) | ( p[6] & 0x0F );
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uint8_t magic2 = ( ( p[8] & 0x0F ) << 4 ) | ( p[9] & 0x0F );
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return (eeprom_read_byte( (void*)VIA_EEPROM_MAGIC_ADDR+0 ) == magic0 &&
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eeprom_read_byte( (void*)VIA_EEPROM_MAGIC_ADDR+1 ) == magic1 &&
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eeprom_read_byte( (void*)VIA_EEPROM_MAGIC_ADDR+2 ) == magic2 );
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}
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// Sets VIA/keyboard level usage of EEPROM to valid/invalid
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// Keyboard level code (eg. via_init_kb()) should not call this
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void via_eeprom_set_valid(bool valid)
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{
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char *p = QMK_BUILDDATE; // e.g. "2019-11-05-11:29:54"
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uint8_t magic0 = ( ( p[2] & 0x0F ) << 4 ) | ( p[3] & 0x0F );
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uint8_t magic1 = ( ( p[5] & 0x0F ) << 4 ) | ( p[6] & 0x0F );
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uint8_t magic2 = ( ( p[8] & 0x0F ) << 4 ) | ( p[9] & 0x0F );
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eeprom_update_byte( (void*)VIA_EEPROM_MAGIC_ADDR+0, valid ? magic0 : 0xFF);
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eeprom_update_byte( (void*)VIA_EEPROM_MAGIC_ADDR+1, valid ? magic1 : 0xFF);
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eeprom_update_byte( (void*)VIA_EEPROM_MAGIC_ADDR+2, valid ? magic2 : 0xFF);
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}
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// Flag QMK and VIA/keyboard level EEPROM as invalid.
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// Used in bootmagic_lite() and VIA command handler.
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// Keyboard level code should not need to call this.
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void via_eeprom_reset(void)
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{
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// Set the VIA specific EEPROM state as invalid.
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via_eeprom_set_valid(false);
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// Set the TMK/QMK EEPROM state as invalid.
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eeconfig_disable();
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}
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// Override bootmagic_lite() so it can flag EEPROM as invalid
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// as well as jump to bootloader, thus performing a "factory reset"
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// of dynamic keymaps and optionally backlight/other settings.
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void bootmagic_lite(void)
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{
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// The lite version of TMK's bootmagic based on Wilba.
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// 100% less potential for accidentally making the
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// keyboard do stupid things.
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// We need multiple scans because debouncing can't be turned off.
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matrix_scan();
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#if defined(DEBOUNCE) && DEBOUNCE > 0
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wait_ms(DEBOUNCE * 2);
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#else
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wait_ms(30);
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#endif
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matrix_scan();
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// If the Esc and space bar are held down on power up,
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// reset the EEPROM valid state and jump to bootloader.
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// Assumes Esc is at [0,0].
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// This isn't very generalized, but we need something that doesn't
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// rely on user's keymaps in firmware or EEPROM.
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if (matrix_get_row(BOOTMAGIC_LITE_ROW) & (1 << BOOTMAGIC_LITE_COLUMN)) {
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// This is the only difference from the default implementation.
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via_eeprom_reset();
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// Jump to bootloader.
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bootloader_jump();
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}
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}
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// Override this at the keyboard code level to check
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// VIA's EEPROM valid state and reset to defaults as needed.
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// Used by keyboards that store their own state in EEPROM,
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// for backlight, rotary encoders, etc.
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// The override should not set via_eeprom_set_valid(true) as
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// the caller also needs to check the valid state.
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__attribute__((weak)) void via_init_kb(void) {
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}
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// Called by QMK core to initialize dynamic keymaps etc.
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void via_init(void)
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{
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// Let keyboard level test EEPROM valid state,
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// but not set it valid, it is done here.
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via_init_kb();
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// If the EEPROM has the magic, the data is good.
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// OK to load from EEPROM.
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if (via_eeprom_is_valid()) {
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} else {
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// This resets the layout options
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via_set_layout_options(0);
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// This resets the keymaps in EEPROM to what is in flash.
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dynamic_keymap_reset();
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// This resets the macros in EEPROM to nothing.
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dynamic_keymap_macro_reset();
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// Save the magic number last, in case saving was interrupted
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via_eeprom_set_valid(true);
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}
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}
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// This is generalized so the layout options EEPROM usage can be
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// variable, between 1 and 4 bytes.
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uint32_t via_get_layout_options(void)
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{
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uint32_t value = 0;
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// Start at the most significant byte
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void * source = (void *)(VIA_EEPROM_LAYOUT_OPTIONS_ADDR);
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for ( uint8_t i = 0; i < VIA_EEPROM_LAYOUT_OPTIONS_SIZE; i++ ) {
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value = value << 8;
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value |= eeprom_read_byte(source);
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source++;
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}
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return value;
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}
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void via_set_layout_options(uint32_t value)
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{
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// Start at the least significant byte
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void * target = (void *)(VIA_EEPROM_LAYOUT_OPTIONS_ADDR+VIA_EEPROM_LAYOUT_OPTIONS_SIZE-1);
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for ( uint8_t i = 0; i < VIA_EEPROM_LAYOUT_OPTIONS_SIZE; i++ ) {
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eeprom_update_byte(target, value & 0xFF );
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value = value >> 8;
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target--;
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}
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}
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// Called by QMK core to process VIA-specific keycodes.
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bool process_record_via(uint16_t keycode, keyrecord_t *record)
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{
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// Handle macros
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if (record->event.pressed) {
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if ( keycode >= MACRO00 && keycode <= MACRO15 )
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{
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uint8_t id = keycode - MACRO00;
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dynamic_keymap_macro_send(id);
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return false;
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}
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}
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// TODO: ideally this would be generalized and refactored into
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// QMK core as advanced keycodes, until then, the simple case
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// can be available here to keyboards using VIA
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switch(keycode) {
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case FN_MO13:
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if (record->event.pressed) {
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layer_on(1);
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update_tri_layer(1, 2, 3);
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} else {
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layer_off(1);
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update_tri_layer(1, 2, 3);
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}
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return false;
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break;
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case FN_MO23:
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if (record->event.pressed) {
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layer_on(2);
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update_tri_layer(1, 2, 3);
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} else {
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layer_off(2);
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update_tri_layer(1, 2, 3);
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}
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return false;
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break;
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}
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return true;
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}
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// Keyboard level code can override this to handle custom messages from VIA.
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// See raw_hid_receive() implementation.
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// DO NOT call raw_hid_send() in the overide function.
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__attribute__((weak)) void raw_hid_receive_kb(uint8_t *data, uint8_t length) {
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uint8_t *command_id = &(data[0]);
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*command_id = id_unhandled;
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}
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// VIA handles received HID messages first, and will route to
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// raw_hid_receive_kb() for command IDs that are not handled here.
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// This gives the keyboard code level the ability to handle the command
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// specifically.
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//
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// raw_hid_send() is called at the end, with the same buffer, which was
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// possibly modified with returned values.
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void raw_hid_receive( uint8_t *data, uint8_t length )
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{
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uint8_t *command_id = &(data[0]);
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uint8_t *command_data = &(data[1]);
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switch ( *command_id )
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{
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case id_get_protocol_version:
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{
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command_data[0] = VIA_PROTOCOL_VERSION >> 8;
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command_data[1] = VIA_PROTOCOL_VERSION & 0xFF;
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break;
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}
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case id_get_keyboard_value:
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{
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switch ( command_data[0] )
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{
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case id_uptime:
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{
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uint32_t value = timer_read32();
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command_data[1] = (value >> 24 ) & 0xFF;
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command_data[2] = (value >> 16 ) & 0xFF;
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command_data[3] = (value >> 8 ) & 0xFF;
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command_data[4] = value & 0xFF;
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break;
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}
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case id_layout_options:
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{
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uint32_t value = via_get_layout_options();
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command_data[1] = (value >> 24 ) & 0xFF;
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command_data[2] = (value >> 16 ) & 0xFF;
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command_data[3] = (value >> 8 ) & 0xFF;
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command_data[4] = value & 0xFF;
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break;
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}
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case id_switch_matrix_state:
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{
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#if ( (MATRIX_COLS/8+1)*MATRIX_ROWS <= 28 )
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uint8_t i = 1;
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for ( uint8_t row=0; row<MATRIX_ROWS; row++ ) {
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matrix_row_t value = matrix_get_row(row);
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#if (MATRIX_COLS > 24)
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command_data[i++] = (value >> 24 ) & 0xFF;
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#endif
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#if (MATRIX_COLS > 16)
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command_data[i++] = (value >> 16 ) & 0xFF;
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#endif
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#if (MATRIX_COLS > 8)
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command_data[i++] = (value >> 8 ) & 0xFF;
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#endif
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command_data[i++] = value & 0xFF;
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}
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#endif
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break;
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}
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default:
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{
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raw_hid_receive_kb(data,length);
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break;
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}
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}
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break;
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}
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case id_set_keyboard_value:
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{
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switch ( command_data[0] )
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{
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case id_layout_options:
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{
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uint32_t value = ( (uint32_t)command_data[1] << 24 ) |
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( (uint32_t)command_data[2] << 16 ) |
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( (uint32_t)command_data[3] << 8 ) |
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(uint32_t)command_data[4];
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via_set_layout_options(value);
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break;
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}
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default:
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{
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raw_hid_receive_kb(data,length);
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break;
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}
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}
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break;
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}
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case id_dynamic_keymap_get_keycode:
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{
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uint16_t keycode = dynamic_keymap_get_keycode( command_data[0], command_data[1], command_data[2] );
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command_data[3] = keycode >> 8;
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command_data[4] = keycode & 0xFF;
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break;
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}
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case id_dynamic_keymap_set_keycode:
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{
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dynamic_keymap_set_keycode( command_data[0], command_data[1], command_data[2], ( command_data[3] << 8 ) | command_data[4] );
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break;
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}
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case id_dynamic_keymap_reset:
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{
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dynamic_keymap_reset();
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break;
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}
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case id_backlight_config_set_value:
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case id_backlight_config_get_value:
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case id_backlight_config_save:
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{
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raw_hid_receive_kb(data, length);
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break;
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}
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case id_dynamic_keymap_macro_get_count:
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{
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command_data[0] = dynamic_keymap_macro_get_count();
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break;
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}
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case id_dynamic_keymap_macro_get_buffer_size:
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{
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uint16_t size = dynamic_keymap_macro_get_buffer_size();
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command_data[0] = size >> 8;
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command_data[1] = size & 0xFF;
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break;
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}
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case id_dynamic_keymap_macro_get_buffer:
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{
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uint16_t offset = ( command_data[0] << 8 ) | command_data[1];
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uint16_t size = command_data[2]; // size <= 28
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dynamic_keymap_macro_get_buffer( offset, size, &command_data[3] );
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break;
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}
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case id_dynamic_keymap_macro_set_buffer:
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{
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uint16_t offset = ( command_data[0] << 8 ) | command_data[1];
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uint16_t size = command_data[2]; // size <= 28
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dynamic_keymap_macro_set_buffer( offset, size, &command_data[3] );
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break;
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}
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case id_dynamic_keymap_macro_reset:
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{
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dynamic_keymap_macro_reset();
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break;
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}
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case id_dynamic_keymap_get_layer_count:
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{
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command_data[0] = dynamic_keymap_get_layer_count();
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break;
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}
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case id_dynamic_keymap_get_buffer:
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{
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uint16_t offset = ( command_data[0] << 8 ) | command_data[1];
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uint16_t size = command_data[2]; // size <= 28
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dynamic_keymap_get_buffer( offset, size, &command_data[3] );
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break;
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}
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case id_dynamic_keymap_set_buffer:
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{
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uint16_t offset = ( command_data[0] << 8 ) | command_data[1];
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uint16_t size = command_data[2]; // size <= 28
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dynamic_keymap_set_buffer( offset, size, &command_data[3] );
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break;
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}
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case id_eeprom_reset:
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{
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via_eeprom_reset();
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break;
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}
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case id_bootloader_jump:
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{
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// Need to send data back before the jump
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// Informs host that the command is handled
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raw_hid_send( data, length );
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// Give host time to read it
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wait_ms(100);
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bootloader_jump();
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break;
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}
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default:
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{
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// The command ID is not known
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// Return the unhandled state
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*command_id = id_unhandled;
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break;
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}
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}
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// Return the same buffer, optionally with values changed
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// (i.e. returning state to the host, or the unhandled state).
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raw_hid_send( data, length );
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}
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