base_fw: sync time between host and fw for logging

It is a general implementation for logging and it doesn't use intel
audio hardware feature like ART counter. 64bits timestamp is needed
for accuracy since the timestamp used by host is beyond 32bits in most
cases.

Signed-off-by: Rander Wang <[email protected]>

src/audio/base_fw.c

@@ -21,6 +21,7 @@
 #include <zephyr/device.h>
 #include <zephyr/drivers/counter.h>
 #endif
+#include <zephyr/logging/log_ctrl.h>
 
 /* TODO: Remove platform-specific code, see https://github.com/thesofproject/sof/issues/7549 */
 #if defined(CONFIG_SOC_SERIES_INTEL_ACE) || defined(CONFIG_INTEL_ADSP_CAVS)
@@ -35,6 +36,7 @@ DECLARE_SOF_RT_UUID("basefw", basefw_comp_uuid, 0xe398c32, 0x5ade, 0xba4b,
 DECLARE_TR_CTX(basefw_comp_tr, SOF_UUID(basefw_comp_uuid), LOG_LEVEL_INFO);
 
 static struct ipc4_system_time_info global_system_time_info;
+static uint64_t cycle_delta;
 
 static int basefw_config(uint32_t *data_offset, char *data)
 {
@@ -241,23 +243,46 @@ static int basefw_mem_state_info(uint32_t *data_offset, char *data)
 	return 0;
 }
 
+static log_timestamp_t basefw_get_timestamp(void)
+{
+	return sof_cycle_get_64() + cycle_delta;
+}
+
 static uint32_t basefw_set_system_time(uint32_t param_id,
 				       bool first_block,
 				       bool last_block,
 				       uint32_t data_offset,
 				       const char *data)
 {
-	/* TODO: configurate time to logging subsystem */
+	uint64_t dsp_time;
+	uint64_t dsp_cycle;
+	uint64_t host_time;
+	uint64_t host_cycle;
+
 	if (!(first_block && last_block))
 		return IPC4_INVALID_REQUEST;
 
 	global_system_time_info.host_time.val_l = ((const struct ipc4_system_time *)data)->val_l;
 	global_system_time_info.host_time.val_u = ((const struct ipc4_system_time *)data)->val_u;
 
-	uint64_t current_dsp_time = k_cyc_to_us_floor64(sof_cycle_get_64());
+	dsp_cycle = sof_cycle_get_64();
+	dsp_time = k_cyc_to_us_floor64(dsp_cycle);
+
+	global_system_time_info.dsp_time.val_l = (uint32_t)(dsp_time);
+	global_system_time_info.dsp_time.val_u = (uint32_t)(dsp_time >> 32);
+
+	/* use default timestamp if 64bit is not enabled since 64bit is necessary for host time */
+	if (!IS_ENABLED(CONFIG_LOG_TIMESTAMP_64BIT)) {
+		LOG_WRN("64bits timestamp is disabled, so use default timestamp");
+		return IPC4_SUCCESS;
+	}
 
-	global_system_time_info.dsp_time.val_l = (uint32_t)(current_dsp_time);
-	global_system_time_info.dsp_time.val_u = (uint32_t)(current_dsp_time >> 32);
+	host_time = global_system_time_info.host_time.val_l |
+			((uint64_t)global_system_time_info.host_time.val_u << 32);
+	host_cycle = k_us_to_cyc_ceil64(host_time);
+	cycle_delta = host_cycle - dsp_cycle;
+	log_set_timestamp_func(basefw_get_timestamp,
+			       sys_clock_hw_cycles_per_sec());
 
 	return IPC4_SUCCESS;
 }