89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
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/*
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* libraw1394 - library for raw access to the 1394 bus with the Linux subsystem.
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*
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* Copyright (C) 1999,2000 Andreas Bombe
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*
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* This library is licensed under the GNU Lesser General Public License (LGPL),
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* version 2.1 or later. See the file COPYING.LIB in the distribution for
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* details.
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*/
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#include <config.h>
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#include <errno.h>
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#include "raw1394.h"
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#include "kernel-raw1394.h"
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#include "raw1394_private.h"
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raw1394_errcode_t raw1394_get_errcode(struct raw1394_handle *handle)
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{
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return handle->err;
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}
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int raw1394_errcode_to_errno(raw1394_errcode_t errcode)
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{
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static const int ack2errno[16] = {
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0xdead, /* invalid ack code */
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0, /* ack_complete */
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0xdead, /* ack_pending, should not be used here */
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EAGAIN, /* busy_x, busy_a and busy_b acks */
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EAGAIN,
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EAGAIN,
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0xdead, /* invalid ack codes */
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0xdead,
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0xdead,
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0xdead,
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0xdead,
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0xdead,
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0xdead,
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EREMOTEIO, /* ack_data_error */
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EPERM, /* ack_type_error */
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0xdead /* invalid ack code */
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};
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static const int rcode2errno[16] = {
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0, /* rcode_complete */
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0xdead, /* invalid rcodes */
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0xdead,
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0xdead,
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EAGAIN, /* rcode_conflict_error */
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EREMOTEIO, /* rcode_data_error */
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EPERM, /* rcode_type_error */
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EINVAL, /* rcode_address_error */
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0xdead, /* invalid rcodes */
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0xdead,
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0xdead,
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0xdead,
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0xdead,
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0xdead,
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0xdead,
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0xdead
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};
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if (!raw1394_internal_err(errcode)) {
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if (raw1394_get_ack(errcode) == L1394_ACK_PENDING)
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return rcode2errno[raw1394_get_rcode(errcode)];
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else
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return ack2errno[raw1394_get_ack(errcode)];
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}
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switch (raw1394_get_internal(errcode)) {
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case RAW1394_ERROR_GENERATION:
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case RAW1394_ERROR_SEND_ERROR:
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case RAW1394_ERROR_ABORTED:
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case RAW1394_ERROR_TIMEOUT:
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return EAGAIN;
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case RAW1394_ERROR_MEMFAULT:
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return EFAULT;
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case RAW1394_ERROR_COMPAT:
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case RAW1394_ERROR_STATE_ORDER:
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case RAW1394_ERROR_INVALID_ARG:
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case RAW1394_ERROR_ALREADY:
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case RAW1394_ERROR_EXCESSIVE:
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case RAW1394_ERROR_UNTIDY_LEN:
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default:
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return EINVAL;
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}
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}
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