jpmschweitzerandClaude Fable 5
cb5826e02b
Root cause (verified against our exact IDF tree, not the community guess): the "258" in "sdio_write_task: Failed to send data: 258" is NOT a timeout (that is 263). 258 = 0x102 = ESP_ERR_INVALID_ARG. On the ESP32-P4, block- mode CMD53 writes require the SOURCE buffer to be 64-byte (cache-line) aligned; the IDF sdmmc driver rejects a misaligned source with INVALID_ARG BEFORE any bus activity. esp_hosts write loop then declares "Unrecoverable host sdio state" and reboots the whole P4. The audio TX payload is not 64-aligned, so streaming mic audio wedged on the very FIRST frame (which is exactly what we saw: listening -> instant Failed to send -> reboot). This also explains why buffer/queue/clock/retry tuning all did nothing: the write never reached the bus. And why our symptom was instant, not after ~100 writes (the community block-mode-desync theory) — it is the first misaligned buffer, every time. Fix: vendored esp_hosted 2.12.11 as an editable local component (overrides the registry copy) and bounce a misaligned TX payload through one aligned DMA scratch buffer in hosted_sdio_write_block (port_esp_hosted_host_sdio.c). TX is serialized by the bus lock so a single static bounce buffer is safe; freed in hosted_sdio_deinit. Host-only change — no C6 reflash. VERIFIED ON HARDWARE (autonomous self-test): 40s of continuous mic-audio upstream streaming — the traffic that previously wedged on the first frame — ran clean, zero timeouts, zero reboots. A guarded SDIO_TX_SELFTEST harness is kept (compiled out) for future SDIO stress testing. Credit: root cause + patch designed via multi-agent investigation; the precise 258=INVALID_ARG decode (correcting the upstream community timeout assumption) came from checking our actual esp_err.h. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
43 lines
957 B
C
43 lines
957 B
C
/*
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* SPDX-FileCopyrightText: 2025-2026 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __ESP_HOSTED_EVENT_H__
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#define __ESP_HOSTED_EVENT_H__
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#include "esp_event.h"
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#include "esp_system.h"
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ESP_EVENT_DECLARE_BASE(ESP_HOSTED_EVENT);
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/**
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* @brief ESP-Hosted event declarations
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*/
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enum {
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ESP_HOSTED_EVENT_CP_INIT = 0,
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ESP_HOSTED_EVENT_CP_HEARTBEAT,
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ESP_HOSTED_EVENT_TRANSPORT_FAILURE,
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ESP_HOSTED_EVENT_TRANSPORT_UP,
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ESP_HOSTED_EVENT_TRANSPORT_DOWN,
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ESP_HOSTED_EVENT_MEM_MONITOR,
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};
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/**
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* @brief Argument structure for ESP_HOSTED_EVENT_CP_INIT event
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*/
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typedef struct {
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esp_reset_reason_t reason; /**< Reset reason from co-proprocessor */
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} esp_hosted_event_init_t;
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/**
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* @brief Argument structure for ESP_HOSTED_EVENT_CP_HEARTBEAT event
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*/
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typedef struct {
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uint32_t heartbeat; /**< Current co-processor heartbeat number */
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} esp_hosted_event_heartbeat_t;
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#endif /* __ESP_HOSTED_EVENT_H__ */
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