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Fix print completion flow for PT-P710BT and PT-P900W.

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Align raster protocol bytes and print-end sequencing by printer family, add safer status polling/retry behavior, and document the changes with regression coverage to prevent protocol regressions.

Made-with: Cursor
This commit is contained in:
knb
2026-04-17 05:17:22 +09:00
parent 779a50747d
commit d2fd6cc1f9
8 changed files with 98 additions and 28 deletions
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31
src/cli/main.c
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@@ -13,6 +13,7 @@
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
static void usage(const char *argv0)
{
@@ -141,12 +142,28 @@ static void verbose_print_post_print_status(libptouch_ctx *ctx, const char *labe
if (!ctx)
return;
printf("=== verbose: post-print status (%s) ===\n", label);
uint8_t st[LIBPTOUCH_STATUS_LENGTH];
if (libptouch_get_status(ctx, st) == LIBPTOUCH_OK) {
libptouch_status_fprint(stdout, st);
} else {
printf("status: unavailable (%s)\n", libptouch_strerror(ctx));
/*
* 印刷直後は phase change (status[18] != 0x00) が続くことがあるため、
* 短時間ポーリングで最終状態まで追跡する。
*/
const int max_polls = 12; /* ~2.4s */
const useconds_t poll_interval_us = 200000;
for (int i = 0; i < max_polls; i++) {
uint8_t st[LIBPTOUCH_STATUS_LENGTH];
if (libptouch_get_status(ctx, st) != LIBPTOUCH_OK) {
printf("status poll %d/%d: unavailable (%s)\n", i + 1,
max_polls, libptouch_strerror(ctx));
} else {
printf("status poll %d/%d:\n", i + 1, max_polls);
libptouch_status_fprint(stdout, st);
if (st[18] == 0x00u) {
printf("post-print polling settled: print end.\n");
return;
}
}
usleep(poll_interval_us);
}
printf("post-print polling timeout: phase did not settle.\n");
}
int main(int argc, char **argv)
@@ -261,6 +278,10 @@ int main(int argc, char **argv)
libptouch_destroy(sctx);
return 1;
}
/* 印刷直後などは内部処理中で最初のステータス応答が不安定なことがあるため、
* 少し待ってからステータスを取りに行く。 */
usleep(300000); /* 300ms */
uint8_t st[LIBPTOUCH_STATUS_LENGTH];
se = libptouch_get_status(sctx, st);
if (se != LIBPTOUCH_OK) {