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>
23 lines
771 B
C++
23 lines
771 B
C++
#include <string>
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#include <google/protobuf/compiler/plugin.h>
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#include <google/protobuf/compiler/command_line_interface.h>
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#include <protoc-c/c_generator.h>
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int main(int argc, char* argv[]) {
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google::protobuf::compiler::c::CGenerator c_generator;
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std::string invocation_name = argv[0];
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std::string invocation_basename = invocation_name.substr(invocation_name.find_last_of("/") + 1);
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const std::string legacy_name = "protoc-c";
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if (invocation_basename == legacy_name) {
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google::protobuf::compiler::CommandLineInterface cli;
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cli.RegisterGenerator("--c_out", &c_generator, "Generate C/H files.");
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cli.SetVersionInfo(PACKAGE_STRING);
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return cli.Run(argc, argv);
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}
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return google::protobuf::compiler::PluginMain(argc, argv, &c_generator);
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}
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