Don't make EEPROM size assumptions with dynamic keymaps. (#16054)
* Don't make EEPROM size assumptions with dynamic keymaps. * Add support for checking against emulated flash, error out if someone attempts to build a board without specifying EEPROM size. * Reorder defines so that MCU is considered last. * Refactor EEPROM definitions for simplicity. * Fix max sizing of kabedon/kabedon980. * Fix max sizing of mechlovin/olly/jf. * Fix unit tests. * Review comments, add messages with values during build failures.
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Nick Brassel
GitHub
parent
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commit
e22efc037a
17 changed files with 185 additions and 153 deletions
180
platforms/arm_atsam/eeprom_samd.c
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platforms/arm_atsam/eeprom_samd.c
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/* Copyright 2017 Fred Sundvik
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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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#include "eeprom.h"
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#include "debug.h"
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#include "samd51j18a.h"
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#include "core_cm4.h"
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#include "component/nvmctrl.h"
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#include "eeprom_samd.h"
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#ifndef MAX
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# define MAX(X, Y) ((X) > (Y) ? (X) : (Y))
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#endif
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#ifndef BUSY_RETRIES
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# define BUSY_RETRIES 10000
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#endif
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// #define DEBUG_EEPROM_OUTPUT
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/*
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* Debug print utils
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*/
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#if defined(DEBUG_EEPROM_OUTPUT)
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# define eeprom_printf(fmt, ...) xprintf(fmt, ##__VA_ARGS__);
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#else /* NO_DEBUG */
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# define eeprom_printf(fmt, ...)
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#endif /* NO_DEBUG */
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__attribute__((aligned(4))) static uint8_t buffer[EEPROM_SIZE] = {0};
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volatile uint8_t * SmartEEPROM8 = (uint8_t *)SEEPROM_ADDR;
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static inline bool eeprom_is_busy(void) {
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int timeout = BUSY_RETRIES;
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while (NVMCTRL->SEESTAT.bit.BUSY && timeout-- > 0)
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;
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return NVMCTRL->SEESTAT.bit.BUSY;
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}
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static uint32_t get_virtual_eeprom_size(void) {
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// clang-format off
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static const uint32_t VIRTUAL_EEPROM_MAP[11][8] = {
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/* 4 8 16 32 64 128 256 512 */
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/* 0*/ { 0, 0, 0, 0, 0, 0, 0, 0 },
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/* 1*/ { 512, 1024, 2048, 4096, 4096, 4096, 4096, 4096 },
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/* 2*/ { 512, 1024, 2048, 4096, 8192, 8192, 8192, 8192 },
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/* 3*/ { 512, 1024, 2048, 4096, 8192, 16384, 16384, 16384 },
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/* 4*/ { 512, 1024, 2048, 4096, 8192, 16384, 16384, 16384 },
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/* 5*/ { 512, 1024, 2048, 4096, 8192, 16384, 32768, 32768 },
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/* 6*/ { 512, 1024, 2048, 4096, 8192, 16384, 32768, 32768 },
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/* 7*/ { 512, 1024, 2048, 4096, 8192, 16384, 32768, 32768 },
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/* 8*/ { 512, 1024, 2048, 4096, 8192, 16384, 32768, 32768 },
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/* 9*/ { 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536 },
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/*10*/ { 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536 },
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};
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// clang-format on
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static uint32_t virtual_eeprom_size = UINT32_MAX;
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if (virtual_eeprom_size == UINT32_MAX) {
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virtual_eeprom_size = VIRTUAL_EEPROM_MAP[NVMCTRL->SEESTAT.bit.PSZ][NVMCTRL->SEESTAT.bit.SBLK];
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}
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// eeprom_printf("get_virtual_eeprom_size:: %d:%d:%d\n", NVMCTRL->SEESTAT.bit.PSZ, NVMCTRL->SEESTAT.bit.SBLK, virtual_eeprom_size);
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return virtual_eeprom_size;
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}
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uint8_t eeprom_read_byte(const uint8_t *addr) {
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uintptr_t offset = (uintptr_t)addr;
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if (offset >= MAX(EEPROM_SIZE, get_virtual_eeprom_size())) {
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eeprom_printf("eeprom_read_byte:: out of bounds\n");
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return 0x0;
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}
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if (get_virtual_eeprom_size() == 0) {
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return buffer[offset];
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}
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if (eeprom_is_busy()) {
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eeprom_printf("eeprom_write_byte:: timeout\n");
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return 0x0;
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}
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return SmartEEPROM8[offset];
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}
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void eeprom_write_byte(uint8_t *addr, uint8_t value) {
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uintptr_t offset = (uintptr_t)addr;
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if (offset >= MAX(EEPROM_SIZE, get_virtual_eeprom_size())) {
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eeprom_printf("eeprom_write_byte:: out of bounds\n");
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return;
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}
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if (get_virtual_eeprom_size() == 0) {
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buffer[offset] = value;
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return;
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}
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if (eeprom_is_busy()) {
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eeprom_printf("eeprom_write_byte:: timeout\n");
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return;
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}
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SmartEEPROM8[offset] = value;
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}
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uint16_t eeprom_read_word(const uint16_t *addr) {
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const uint8_t *p = (const uint8_t *)addr;
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return eeprom_read_byte(p) | (eeprom_read_byte(p + 1) << 8);
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}
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uint32_t eeprom_read_dword(const uint32_t *addr) {
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const uint8_t *p = (const uint8_t *)addr;
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return eeprom_read_byte(p) | (eeprom_read_byte(p + 1) << 8) | (eeprom_read_byte(p + 2) << 16) | (eeprom_read_byte(p + 3) << 24);
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}
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void eeprom_read_block(void *buf, const void *addr, size_t len) {
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const uint8_t *p = (const uint8_t *)addr;
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uint8_t * dest = (uint8_t *)buf;
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while (len--) {
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*dest++ = eeprom_read_byte(p++);
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}
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}
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void eeprom_write_word(uint16_t *addr, uint16_t value) {
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uint8_t *p = (uint8_t *)addr;
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eeprom_write_byte(p++, value);
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eeprom_write_byte(p, value >> 8);
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}
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void eeprom_write_dword(uint32_t *addr, uint32_t value) {
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uint8_t *p = (uint8_t *)addr;
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eeprom_write_byte(p++, value);
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eeprom_write_byte(p++, value >> 8);
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eeprom_write_byte(p++, value >> 16);
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eeprom_write_byte(p, value >> 24);
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}
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void eeprom_write_block(const void *buf, void *addr, size_t len) {
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uint8_t * p = (uint8_t *)addr;
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const uint8_t *src = (const uint8_t *)buf;
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while (len--) {
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eeprom_write_byte(p++, *src++);
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}
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}
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void eeprom_update_byte(uint8_t *addr, uint8_t value) { eeprom_write_byte(addr, value); }
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void eeprom_update_word(uint16_t *addr, uint16_t value) {
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uint8_t *p = (uint8_t *)addr;
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eeprom_write_byte(p++, value);
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eeprom_write_byte(p, value >> 8);
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}
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void eeprom_update_dword(uint32_t *addr, uint32_t value) {
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uint8_t *p = (uint8_t *)addr;
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eeprom_write_byte(p++, value);
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eeprom_write_byte(p++, value >> 8);
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eeprom_write_byte(p++, value >> 16);
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eeprom_write_byte(p, value >> 24);
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}
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void eeprom_update_block(const void *buf, void *addr, size_t len) {
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uint8_t * p = (uint8_t *)addr;
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const uint8_t *src = (const uint8_t *)buf;
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while (len--) {
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eeprom_write_byte(p++, *src++);
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}
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}
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