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gex-core/comm/messages.c

179 lines
4.5 KiB

//
// Created by MightyPork on 2017/11/21.
//
#include "platform.h"
#include "framework/settings.h"
#include "utils/ini_parser.h"
#include "TinyFrame.h"
#include "framework/unit_registry.h"
#include "comm/messages.h"
static TinyFrame tf_;
TinyFrame *comm = &tf_;
// ---------------------------------------------------------------------------
/**
* Ping request listener - returns version string and other info about the build
*/
static TF_Result lst_ping(TinyFrame *tf, TF_Msg *msg)
{
com_respond_snprintf(msg->frame_id, MSG_SUCCESS,
"GEX v%s on %s", GEX_VERSION, GEX_PLATFORM);
return TF_STAY;
}
/**
* Default listener, fallback for unhandled messages
*/
static TF_Result lst_default(TinyFrame *tf, TF_Msg *msg)
{
dbg("!! Unhandled msg type %02"PRIx8", frame_id 0x%04"PRIx16, msg->type, msg->frame_id);
com_respond_snprintf(msg->frame_id, MSG_ERROR, "UNKNOWN MSG %"PRIu8, msg->type);
return TF_STAY;
}
/**
* Unit request listener, a message targeted at a particular
*/
static TF_Result lst_unit(TinyFrame *tf, TF_Msg *msg)
{
ureg_deliver_unit_request(msg);
return TF_STAY;
}
/**
* List all active unit callsigns, names and types
*/
static TF_Result lst_list_units(TinyFrame *tf, TF_Msg *msg)
{
ureg_report_active_units(msg->frame_id);
return TF_STAY;
}
// ---------------------------------------------------------------------------
/** Callback for bulk read of the settings file */
static void settings_bulkread_cb(BulkRead *bulk, uint32_t chunk, uint8_t *buffer)
{
// clean-up request
if (buffer == NULL) {
free(bulk);
dbg("INI read complete.");
return;
}
IniWriter iw = iw_init((char *)buffer, bulk->offset, chunk);
settings_build_units_ini(&iw);
}
/**
* Listener: Export INI file via TF
*/
static TF_Result lst_ini_export(TinyFrame *tf, TF_Msg *msg)
{
dbg("Bulk read INI file");
BulkRead *bulk = malloc(sizeof(BulkRead));
assert_param(bulk);
bulk->frame_id = msg->frame_id;
bulk->len = iw_measure_total(settings_build_units_ini);
bulk->read = settings_bulkread_cb;
bulk->userdata = NULL;
bulkread_start(tf, bulk);
return TF_STAY;
}
// ---------------------------------------------------------------------------
/** Callback for receiving a key-value pair from the INi parser when importing a INI file */
static void iniparser_cb(const char *section, const char *key, const char *value, void *userData)
{
settings_load_ini_key(section, key, value);
}
/** Callback for importing INI file */
static void settings_bulkwrite_cb(BulkWrite *bulk, const uint8_t *chunk, uint32_t len)
{
// clean-up request
if (chunk == NULL) {
ini_parse_end();
settings_load_ini_end();
dbg("INI write complete.");
free(bulk);
return;
}
PUTSN((const char *) chunk, len);
PUTS("\r\n---\r\n");
ini_parse((const char *) chunk, len);
}
/**
* Listener: Import INI file (write from PC via TF)
*/
static TF_Result lst_ini_import(TinyFrame *tf, TF_Msg *msg)
{
dbg("Bulk write INI file");
BulkWrite *bulk = malloc(sizeof(BulkWrite));
assert_param(bulk);
bulk->frame_id = msg->frame_id;
// we get the total len in the payload - ini can be as long as it wants, we parse it on-line
PayloadParser pp = pp_start(msg->data, msg->len, NULL);
uint32_t len = pp_u32(&pp);
if (!pp.ok) {
com_respond_error(msg->frame_id, E_PROTOCOL_BREACH);
goto done;
}
bulk->len = len;
bulk->write = settings_bulkwrite_cb;
settings_load_ini_begin();
ini_parse_begin(iniparser_cb, NULL);
bulkwrite_start(tf, bulk);
done:
return TF_STAY;
}
// ---------------------------------------------------------------------------
/** Listener: Save settings to Flash */
static TF_Result lst_persist_cfg(TinyFrame *tf, TF_Msg *msg)
{
settings_save();
return TF_STAY;
}
// ---------------------------------------------------------------------------
void comm_init(void)
{
TF_InitStatic(comm, TF_SLAVE);
bool suc = true;
suc &= TF_AddTypeListener(comm, MSG_PING, lst_ping);
suc &= TF_AddTypeListener(comm, MSG_UNIT_REQUEST, lst_unit);
suc &= TF_AddTypeListener(comm, MSG_LIST_UNITS, lst_list_units);
suc &= TF_AddTypeListener(comm, MSG_INI_READ, lst_ini_export);
suc &= TF_AddTypeListener(comm, MSG_INI_WRITE, lst_ini_import);
suc &= TF_AddTypeListener(comm, MSG_PERSIST_CFG, lst_persist_cfg);
// fall-through
suc &= TF_AddGenericListener(comm, lst_default);
assert_param(suc);
}