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Fix multi-serial CRC error crash (#21249)

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This commit is contained in:
Victor Oliveira 2021-03-04 20:39:08 -03:00 committed by Scott Lahteine
parent 6cfd190107
commit 5a01cdb81c
3 changed files with 4 additions and 5 deletions
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2
Marlin/src/gcode/control/M999.cpp
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@ -41,5 +41,5 @@ void GcodeSuite::M999() {
if (parser.boolval('S')) return; if (parser.boolval('S')) return;
queue.flush_and_request_resend(); queue.flush_and_request_resend(queue.ring_buffer.command_port());
} }

5
Marlin/src/gcode/queue.cpp
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@ -262,8 +262,7 @@ void GCodeQueue::RingBuffer::ok_to_send() {
* Send a "Resend: nnn" message to the host to * Send a "Resend: nnn" message to the host to
* indicate that a command needs to be re-sent. * indicate that a command needs to be re-sent.
*/ */
void GCodeQueue::flush_and_request_resend() { void GCodeQueue::flush_and_request_resend(const serial_index_t serial_ind) {
const serial_index_t serial_ind = ring_buffer.command_port();
#if HAS_MULTI_SERIAL #if HAS_MULTI_SERIAL
if (serial_ind < 0) return; // Never mind. Command came from SD or Flash Drive if (serial_ind < 0) return; // Never mind. Command came from SD or Flash Drive
PORT_REDIRECT(SERIAL_PORTMASK(serial_ind)); // Reply to the serial port that sent the command PORT_REDIRECT(SERIAL_PORTMASK(serial_ind)); // Reply to the serial port that sent the command
@ -306,7 +305,7 @@ void GCodeQueue::gcode_line_error(PGM_P const err, const serial_index_t serial_i
SERIAL_ERROR_START(); SERIAL_ERROR_START();
SERIAL_ECHOLNPAIR_P(err, serial_state[serial_ind].last_N); SERIAL_ECHOLNPAIR_P(err, serial_state[serial_ind].last_N);
while (read_serial(serial_ind) != -1) { /* nada */ } // Clear out the RX buffer. Why don't use flush here ? while (read_serial(serial_ind) != -1) { /* nada */ } // Clear out the RX buffer. Why don't use flush here ?
flush_and_request_resend(); flush_and_request_resend(serial_ind);
serial_state[serial_ind].count = 0; serial_state[serial_ind].count = 0;
} }

2
Marlin/src/gcode/queue.h
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@ -185,7 +185,7 @@ public:
* Clear the serial line and request a resend of * Clear the serial line and request a resend of
* the next expected line number. * the next expected line number.
*/ */
static void flush_and_request_resend(); static void flush_and_request_resend(const serial_index_t serial_ind);
/** /**
* (Re)Set the current line number for the last received command * (Re)Set the current line number for the last received command