flipperzero-firmware/lib/ibutton/protocols/dallas/protocol_ds_generic.c

143 lines
4.8 KiB
C

#include "protocol_ds_generic.h"
#include <core/string.h>
#include <core/core_defines.h>
#include "dallas_common.h"
#include "../blanks/tm2004.h"
#define DALLAS_GENERIC_FAMILY_CODE 0x00U
#define DALLAS_GENERIC_FAMILY_NAME "DSGeneric"
typedef struct {
OneWireSlave* bus;
} DallasGenericProtocolState;
typedef struct {
DallasCommonRomData rom_data;
DallasGenericProtocolState state;
} DallasGenericProtocolData;
static bool ds_generic_read(OneWireHost*, iButtonProtocolData*);
static bool ds_generic_write_blank(OneWireHost*, iButtonProtocolData*);
static void ds_generic_emulate(OneWireSlave*, iButtonProtocolData*);
static bool ds_generic_load(FlipperFormat*, uint32_t, iButtonProtocolData*);
static bool ds_generic_save(FlipperFormat*, const iButtonProtocolData*);
static void ds_generic_render_brief_data(FuriString*, const iButtonProtocolData*);
static void ds_generic_render_error(FuriString*, const iButtonProtocolData*);
static bool ds_generic_is_data_valid(const iButtonProtocolData*);
static void ds_generic_get_editable_data(iButtonEditableData*, iButtonProtocolData*);
static void ds_generic_apply_edits(iButtonProtocolData*);
const iButtonProtocolDallasBase ibutton_protocol_ds_generic = {
.family_code = DALLAS_GENERIC_FAMILY_CODE,
.features = iButtonProtocolFeatureWriteBlank,
.data_size = sizeof(DallasGenericProtocolData),
.manufacturer = DALLAS_COMMON_MANUFACTURER_NAME,
.name = DALLAS_GENERIC_FAMILY_NAME,
.read = ds_generic_read,
.write_blank = ds_generic_write_blank,
.write_copy = NULL, /* No data to write a copy */
.emulate = ds_generic_emulate,
.save = ds_generic_save,
.load = ds_generic_load,
.render_data = NULL, /* No data to render */
.render_brief_data = ds_generic_render_brief_data,
.render_error = ds_generic_render_error,
.is_valid = ds_generic_is_data_valid,
.get_editable_data = ds_generic_get_editable_data,
.apply_edits = ds_generic_apply_edits,
};
bool ds_generic_read(OneWireHost* host, iButtonProtocolData* protocol_data) {
DallasGenericProtocolData* data = protocol_data;
return onewire_host_reset(host) && dallas_common_read_rom(host, &data->rom_data);
}
bool ds_generic_write_blank(OneWireHost* host, iButtonProtocolData* protocol_data) {
DallasGenericProtocolData* data = protocol_data;
return tm2004_write(host, data->rom_data.bytes, sizeof(DallasCommonRomData));
}
static bool ds_generic_reset_callback(bool is_short, void* context) {
furi_assert(context);
DallasGenericProtocolData* data = context;
if(!is_short) {
onewire_slave_set_overdrive(data->state.bus, is_short);
}
return !is_short;
}
static bool ds_generic_command_callback(uint8_t command, void* context) {
furi_assert(context);
DallasGenericProtocolData* data = context;
OneWireSlave* bus = data->state.bus;
switch(command) {
case DALLAS_COMMON_CMD_SEARCH_ROM:
dallas_common_emulate_search_rom(bus, &data->rom_data);
break;
case DALLAS_COMMON_CMD_READ_ROM:
dallas_common_emulate_read_rom(bus, &data->rom_data);
break;
default:
break;
}
// No support for multiple consecutive commands
return false;
}
void ds_generic_emulate(OneWireSlave* bus, iButtonProtocolData* protocol_data) {
DallasGenericProtocolData* data = protocol_data;
data->state.bus = bus;
onewire_slave_set_reset_callback(bus, ds_generic_reset_callback, protocol_data);
onewire_slave_set_command_callback(bus, ds_generic_command_callback, protocol_data);
}
bool ds_generic_save(FlipperFormat* ff, const iButtonProtocolData* protocol_data) {
const DallasGenericProtocolData* data = protocol_data;
return dallas_common_save_rom_data(ff, &data->rom_data);
}
bool ds_generic_load(
FlipperFormat* ff,
uint32_t format_version,
iButtonProtocolData* protocol_data) {
DallasGenericProtocolData* data = protocol_data;
return dallas_common_load_rom_data(ff, format_version, &data->rom_data);
}
void ds_generic_render_brief_data(FuriString* result, const iButtonProtocolData* protocol_data) {
const DallasGenericProtocolData* data = protocol_data;
for(size_t i = 0; i < sizeof(DallasCommonRomData); ++i) {
furi_string_cat_printf(result, "%02X ", data->rom_data.bytes[i]);
}
}
void ds_generic_render_error(FuriString* result, const iButtonProtocolData* protocol_data) {
UNUSED(result);
UNUSED(protocol_data);
}
bool ds_generic_is_data_valid(const iButtonProtocolData* protocol_data) {
UNUSED(protocol_data);
return true;
}
void ds_generic_get_editable_data(
iButtonEditableData* editable_data,
iButtonProtocolData* protocol_data) {
DallasGenericProtocolData* data = protocol_data;
editable_data->ptr = data->rom_data.bytes;
editable_data->size = sizeof(DallasCommonRomData);
}
void ds_generic_apply_edits(iButtonProtocolData* protocol_data) {
UNUSED(protocol_data);
}