feat(gas-logger): добавь непрерывный логгер и JSON-карту

c/gas-logger/include/gas_logger.h

@@ -0,0 +1,70 @@
+/* Portable continuous recorder. All addresses/counts are 16-bit WORDS,
+ * including on C28x (CHAR_BIT=16). No heap, UART, HAL or global state. */
+#ifndef GAS_LOGGER_H
+#define GAS_LOGGER_H
+#include <stdint.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+#define GL_MAGIC 0x474CU
+#define GL_VERSION 1U
+#define GL_HEADER_WORDS 5U /* time_ms:u32, sequence:u32, event:u16, values... */
+#define GL_DATA_OFFSET 0x100U
+#define GL_MAX_CHANNELS 64U
+#define GL_COMMAND 18U
+#define GL_RELEASE_LO 19U
+#define GL_RELEASE_HI 20U
+#define GL_START 1U
+#define GL_SNAPSHOT 2U
+#define GL_RELEASE 3U
+typedef enum { GL_OK=0, GL_ADDRESS, GL_ARGUMENT, GL_BUSY, GL_EMPTY,
+               GL_STALE, GL_SOURCE_ERROR } gl_result;
+typedef struct {
+    uint16_t gas, modbus, can;
+} gl_channel;
+typedef struct {
+    uint16_t base, channels, capacity;
+    uint32_t schema_id;
+    const gl_channel *map;
+} gl_config;
+/* enter returns the previous IRQ state; leave MUST restore it, not enable
+ * IRQs unconditionally. source executes under this lock: bounded RAM reads
+ * only, never I/O/waits. Cache remote CAN values before sampling. */
+typedef struct {
+    void *user;
+    uint32_t (*enter)(void *user);
+    void (*leave)(void *user, uint32_t state);
+    int (*source)(void *user, uint16_t gas, uint16_t *value);
+} gl_port;
+typedef struct {
+    gl_config config;
+    gl_port port;
+    uint16_t *banks[2];
+    uint16_t active, count, next, recording, pinned, snap_count, snap_next;
+    uint32_t generation, release_generation, sequence, missed, source_errors;
+} gas_logger;
+/* Each distinct bank must have >=capacity*(channels+5) uint16_t elements.
+ * All callbacks and a nonoverlapping register map are required. */
+gl_result gl_init(gas_logger *log, const gl_config *config, const gl_port *port,
+                  uint16_t *bank0, uint16_t *bank1, uint32_t bank_words);
+/* Called by the project timer/event hook. A failed source discards the whole
+ * sample. Sequence/time remain uint32, wrapping modulo 2^32. */
+gl_result gl_capture(gas_logger *log, uint32_t time_ms, uint16_t event);
+/* Snapshot swaps banks, pins the old one, and NEVER stops acquisition.
+ * Another snapshot while pinned returns BUSY and increments missed. */
+gl_result gl_snapshot(gas_logger *log);
+/* Atomic, all-or-nothing block read. Snapshot records are chronological;
+ * reads past snap_count are rejected, not zero-filled. */
+gl_result gl_read(gas_logger *log, uint16_t address, uint16_t *out, uint16_t count);
+/* No STOP/reset command. START is idempotent. RELEASE requires the generation
+ * staged in base+19/20. One controlling client per device. */
+gl_result gl_write(gas_logger *log, uint16_t address, uint16_t value);
+/* Register aliases for FC03/06 and ProtoCAN GAS. Transports keep their own
+ * framing/CRC; addresses are zero-based and words preserve their values. */
+gl_result gl_modbus_read(gas_logger *log, uint16_t address, uint16_t *out, uint16_t count);
+gl_result gl_modbus_write(gas_logger *log, uint16_t address, uint16_t value);
+gl_result gl_can_read(gas_logger *log, uint16_t address, uint16_t *out, uint16_t count);
+#ifdef __cplusplus
+}
+#endif
+#endif

c/gas-logger/include/gas_logger_pcan.h

@@ -0,0 +1,8 @@
+#ifndef GAS_LOGGER_PCAN_H
+#define GAS_LOGGER_PCAN_H
+#include "gas_logger.h"
+#include "pcan_gas.h"
+/* Service region; signal aliases may be registered separately in the project's
+ * GAS dispatcher. CAN callbacks use the logger's alias map. */
+void gl_pcan_region_init(pcan_gas_region_t *region,gas_logger *log);
+#endif