mirror of
https://github.com/qmk/qmk_firmware.git
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72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
// Copyright 2024 Nick Brassel (@tzarc)
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "eeprom.h"
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#include "via.h"
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#include "nvm_via.h"
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#include "nvm_eeprom_eeconfig_internal.h"
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#include "nvm_eeprom_via_internal.h"
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void nvm_via_read_magic(uint8_t *magic0, uint8_t *magic1, uint8_t *magic2) {
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if (magic0) {
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*magic0 = eeprom_read_byte((void *)VIA_EEPROM_MAGIC_ADDR + 0);
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}
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if (magic1) {
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*magic1 = eeprom_read_byte((void *)VIA_EEPROM_MAGIC_ADDR + 1);
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}
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if (magic2) {
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*magic2 = eeprom_read_byte((void *)VIA_EEPROM_MAGIC_ADDR + 2);
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}
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}
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void nvm_via_update_magic(uint8_t magic0, uint8_t magic1, uint8_t magic2) {
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eeprom_update_byte((void *)VIA_EEPROM_MAGIC_ADDR + 0, magic0);
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eeprom_update_byte((void *)VIA_EEPROM_MAGIC_ADDR + 1, magic1);
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eeprom_update_byte((void *)VIA_EEPROM_MAGIC_ADDR + 2, magic2);
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}
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uint32_t nvm_via_read_layout_options(void) {
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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 nvm_via_update_layout_options(uint32_t val) {
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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, val & 0xFF);
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val = val >> 8;
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target--;
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}
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}
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uint32_t nvm_via_read_custom_config(void *buf, uint32_t offset, uint32_t length) {
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#if VIA_EEPROM_CUSTOM_CONFIG_SIZE > 0
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void *ee_start = (void *)(uintptr_t)(VIA_EEPROM_CUSTOM_CONFIG_ADDR + offset);
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void *ee_end = (void *)(uintptr_t)(VIA_EEPROM_CUSTOM_CONFIG_ADDR + MIN(VIA_EEPROM_CUSTOM_CONFIG_SIZE, offset + length));
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eeprom_read_block(buf, ee_start, ee_end - ee_start);
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return ee_end - ee - start;
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#else
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return 0;
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#endif
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}
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uint32_t nvm_via_update_custom_config(const void *buf, uint32_t offset, uint32_t length) {
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#if VIA_EEPROM_CUSTOM_CONFIG_SIZE > 0
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void *ee_start = (void *)(uintptr_t)(VIA_EEPROM_CUSTOM_CONFIG_ADDR + offset);
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void *ee_end = (void *)(uintptr_t)(VIA_EEPROM_CUSTOM_CONFIG_ADDR + MIN(VIA_EEPROM_CUSTOM_CONFIG_SIZE, offset + length));
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eeprom_update_block(buf, ee_start, ee_end - ee_start);
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return ee_end - ee_start;
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#else
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return 0;
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#endif
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} |