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gex-core/framework/settings.c

360 lines
10 KiB

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//
// Created by MightyPork on 2017/11/26.
//
#include "platform.h"
#include "utils/hexdump.h"
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#include "settings.h"
#include "unit_registry.h"
#include "system_settings.h"
#include "utils/str_utils.h"
#include "unit_base.h"
#include "utils/avrlibc.h"
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// pre-declarations
static void savebuf_flush(PayloadBuilder *pb, bool final);
static bool savebuf_ovhandler(PayloadBuilder *pb, uint32_t more);
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// This is the first entry in a valid config.
// Change with each breaking change to force config reset.
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#define CONFIG_MARKER 0xA55E
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void settings_load(void)
{
uint8_t *buffer = (uint8_t *) SETTINGS_FLASH_ADDR;
#if DEBUG_FLASH_WRITE
dbg("reading @ %p", (void*)SETTINGS_FLASH_ADDR);
hexDump("Flash", buffer, 64);
#endif
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PayloadParser pp = pp_start(buffer, SETTINGS_BLOCK_SIZE, NULL);
// Check the integrity marker
if (pp_u16(&pp) != CONFIG_MARKER) {
dbg("Config not valid!");
// Save for next run
settings_save();
return;
}
uint8_t version = pp_u8(&pp); // top level settings format version
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{ // Settings
(void)version; // Conditional choices based on version
// System section
if (!systemsettings_load(&pp)) {
dbg("!! System settings failed to load");
return;
}
if (!ureg_load_units(&pp)) {
dbg("!! Unit settings failed to load");
return;
}
} // End settings
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dbg("System settings loaded OK");
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}
static uint8_t *save_buffer = NULL;
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static uint32_t save_addr;
#if DEBUG_FLASH_WRITE
#define fls_printf(fmt, ...) PRINTF(fmt, ##__VA_ARGS__)
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#else
#define fls_printf(fmt, ...) do {} while (0)
#endif
/**
* Save buffer overflow handler.
* This should flush whatever is in the buffer and let CWPack continue
*
* @param pb - buffer
* @param more - how many more bytes are needed (this is meant for realloc / buffer expanding)
* @return - success code
*/
static bool savebuf_ovhandler(PayloadBuilder *pb, uint32_t more)
{
if (more > FLASH_SAVE_BUF_LEN) return false;
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savebuf_flush(pb, false);
return true;
}
// Save settings to flash
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void settings_save(void)
{
HAL_StatusTypeDef hst;
assert_param(save_buffer == NULL); // It must be NULL here - otherwise we have a leak
save_buffer = malloc_ck(FLASH_SAVE_BUF_LEN);
assert_param(save_buffer != NULL);
PayloadBuilder pb = pb_start(save_buffer, FLASH_SAVE_BUF_LEN, savebuf_ovhandler);
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save_addr = SETTINGS_FLASH_ADDR;
fls_printf("--- Starting flash write... ---\r\n");
hst = HAL_FLASH_Unlock();
assert_param(hst == HAL_OK);
{
fls_printf("ERASE flash pages for settings storage...\r\n");
// We have to first erase the pages
FLASH_EraseInitTypeDef erase;
#if PLAT_FLASHBANKS
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erase.Banks = FLASH_BANK_1; // TODO ?????
#endif
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#if defined(GEX_PLAT_F407_DISCOVERY)
// specialty for F4 with too much flash
erase.NbSectors = 1;
erase.Sector = SETTINGS_FLASH_SECTOR;
erase.TypeErase = FLASH_TYPEERASE_SECTORS;
erase.VoltageRange = FLASH_VOLTAGE_RANGE_3;
erase.Banks = FLASH_BANK_1; // unused for sector erase
#else
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erase.NbPages = SETTINGS_BLOCK_SIZE/FLASH_PAGE_SIZE;
erase.PageAddress = SETTINGS_FLASH_ADDR;
erase.TypeErase = FLASH_TYPEERASE_PAGES;
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#endif
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uint32_t pgerror = 0;
hst = HAL_FLASHEx_Erase(&erase, &pgerror);
assert_param(pgerror == 0xFFFFFFFFU);
assert_param(hst == HAL_OK);
// and now we can start writing...
fls_printf("Beginning settings collect\r\n");
// Marker that this is a valid save
pb_u16(&pb, CONFIG_MARKER);
pb_u8(&pb, 0); // Settings format version
{ // Settings
fls_printf("Saving system settings\r\n");
systemsettings_save(&pb);
fls_printf("Saving units\r\n");
ureg_save_units(&pb);
} // End settings
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fls_printf("Final flush\r\n");
savebuf_flush(&pb, true);
}
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fls_printf("Locking flash...\r\n");
hst = HAL_FLASH_Lock();
assert_param(hst == HAL_OK);
fls_printf("--- Flash done ---\r\n");
free_ck(save_buffer);
save_buffer = NULL;
#if DEBUG_FLASH_WRITE
dbg("written @ %p", (void*)SETTINGS_FLASH_ADDR);
hexDump("Flash", (void*)SETTINGS_FLASH_ADDR, 64);
#endif
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}
/**
* Flush the save buffer to flash, moving leftovers from uneven half-words
* to the beginning and adjusting the CWPack curent pointer accordingly.
*
* @param ctx - pack context
* @param final - if true, flush uneven leftovers; else move them to the beginning and keep for next call.
*/
static void savebuf_flush(PayloadBuilder *pb, bool final)
{
assert_param(save_buffer != NULL);
// TODO this might be buggy, was not tested cross-boundary yet
// TODO remove those printf's after verifying correctness
uint32_t bytes = (uint32_t) pb_length(pb);
// Dump what we're flushing
fls_printf("Flush: ");
for (uint32_t i = 0; i < bytes; i++) {
fls_printf("%02X ", save_buffer[i]);
}
fls_printf("\r\n");
uint32_t halfwords = bytes >> 1;
uint32_t remain = bytes & 1; // how many bytes won't be programmed
fls_printf("Halfwords: %d, Remain: %d, last? %d\r\n", (int)halfwords, (int)remain, final);
uint16_t *hwbuf = (void*) &save_buffer[0];
for (; halfwords > 0; halfwords--) {
uint16_t hword = *hwbuf++;
fls_printf("%04X ", hword);
HAL_StatusTypeDef res = HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD, save_addr, hword);
assert_param(HAL_OK == res);
save_addr += 2; // advance
}
// rewind the context buffer
pb->current = pb->start;
if (remain) {
// We have an odd byte left to write
if (final) {
// We're done writing, this is the last call. Append the last byte to flash.
uint16_t hword = save_buffer[bytes-1];
fls_printf("& %02X ", hword);
HAL_StatusTypeDef res = HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD, save_addr, hword);
assert_param(HAL_OK == res);
} else {
// Move the leftover to the beginning of the buffer for next call.
save_buffer[0] = save_buffer[bytes-1];
pb->current++;
}
}
fls_printf("\r\n");
}
// ---------------------------------------------------------------
/** Generate a file header */
static void gex_file_preamble(IniWriter *iw, const char *filename)
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{
// File header
iw_hdr_comment(iw, filename);
iw_hdr_comment(iw, "GEX v%s on %s", GEX_VERSION, GEX_PLATFORM);
iw_hdr_comment(iw, "built %s at %s", __DATE__, __TIME__);
}
/** Generate a config file header (write instructions) */
static void ini_preamble(IniWriter *iw, const char *filename)
{
gex_file_preamble(iw, filename);
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if (iw->tag == 0) { // tag 1 is set when exporting via the API
iw_cmt_newline(iw);
iw_comment(iw, "Overwrite this file to change settings.");
#if PLAT_LOCK_BTN
iw_comment(iw, "Press the LOCK button to save them to Flash.");
#else
iw_comment(iw, "Close the LOCK jumper to save them to Flash.");
#endif
}
}
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// --- UNITS.INI ---
extern osMutexId mutScratchBufferHandle;
/**
* Build units ini file
*/
void settings_build_units_ini(IniWriter *iw)
{
ini_preamble(iw, "UNITS.INI");
assert_param(osOK == osMutexWait(mutScratchBufferHandle, 5000));
{
ureg_build_ini(iw);
}
assert_param(osOK == osMutexRelease(mutScratchBufferHandle));
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}
// --- SYSTEM.INI ---
/**
* Build system settings ini file
*/
void settings_build_system_ini(IniWriter *iw)
{
ini_preamble(iw, "SYSTEM.INI");
systemsettings_build_ini(iw);
}
// --- PINOUT.TXT ---
/** print system pin.-out info (platform.c) */
extern void plat_print_system_pinout(IniWriter *iw);
/**
* Build pinout info file
*/
void settings_build_pinout_txt(IniWriter *iw)
{
gex_file_preamble(iw, "PINOUT.TXT");
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iw_cmt_newline(iw);
rsc_print_all_available(iw);
ureg_print_unit_resources(iw);
plat_print_system_pinout(iw);
}
// ---------------------------------------------------------------
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void settings_load_ini_begin(void)
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{
SystemSettings.modified = true;
SystemSettings.loading_inifile = 0;
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}
void settings_load_ini_key(const char *restrict section, const char *restrict key, const char *restrict value)
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{
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// dbg("[%s] %s = %s", section, key, value);
char namebuf[INI_KEY_MAX];
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// SYSTEM and UNITS files must be separate.
// Init functions are run for first key in the section.
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if (streq(section, "SYSTEM")) {
if (SystemSettings.loading_inifile == 0) {
SystemSettings.loading_inifile = 'S';
systemsettings_loadDefaults();
}
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// system is always at the top
systemsettings_load_ini(key, value);
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}
else if (streq(section, "UNITS")) {
if (SystemSettings.loading_inifile == 0) {
SystemSettings.loading_inifile = 'U';
ureg_remove_all_units();
}
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// this will always come before individual units config
// install or tear down units as described by the config
ureg_instantiate_by_ini(key, value);
}
else {
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// not a standard section, may be some unit config
// all unit sections contain the colon character [TYPE:NAME@CALLSIGN]
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const char *nameptr = strchr(section, ':');
const char *csptr = strchr(section, '@');
if (nameptr != NULL && csptr != NULL) {
strncpy(namebuf, nameptr+1, csptr - nameptr - 1);
namebuf[csptr - nameptr - 1] = 0;
uint8_t cs = (uint8_t) avr_atoi(csptr + 1);
error_t rv = ureg_load_unit_ini_key(namebuf, key, value, cs);
if (rv != E_SUCCESS)
dbg("!! error loading %s@%d.%s = %s - error %s", namebuf, (int)cs, key, value, error_get_message(rv));
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} else {
dbg("! Bad config key: [%s] %s = %s", section, key, value);
}
}
}
void settings_load_ini_end(void)
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{
if (SystemSettings.loading_inifile == 'U') {
bool suc = ureg_finalize_all_init();
if (!suc) dbg("Some units failed to init!!");
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}
}