kopia lustrzana https://gitlab.com/sane-project/backends
115 wiersze
2.1 KiB
C
115 wiersze
2.1 KiB
C
#ifdef _AIX
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#include "../include/lalloca.h" /* MUST come first for AIX! */
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#endif
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#undef BACKEND_NAME
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#define BACKEND_NAME epson_scsi
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#include "../include/sane/config.h"
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#include "../include/sane/sanei_debug.h"
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#include "../include/sane/sanei_scsi.h"
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#include "epson_scsi.h"
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#include "../include/lalloca.h"
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#ifdef HAVE_STDDEF_H
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#include <stddef.h>
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#endif
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef NEED_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#include <string.h> /* for memset and memcpy */
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#include <stdio.h>
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/*
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* sense handler for the sanei_scsi_XXX comands
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*/
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SANE_Status
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sanei_epson_scsi_sense_handler (int scsi_fd, u_char * result, void *arg)
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{
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/* to get rid of warnings */
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(void) scsi_fd;
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(void) arg;
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if (result[0] && result[0] != 0x70)
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{
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DBG (2, "sense_handler() : sense code = 0x%02x\n", result[0]);
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return SANE_STATUS_IO_ERROR;
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}
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else
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{
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return SANE_STATUS_GOOD;
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}
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}
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/*
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*
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*
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*/
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SANE_Status
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sanei_epson_scsi_inquiry (int fd, int page_code, void *buf, size_t * buf_size)
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{
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u_char cmd[6];
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int status;
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memset (cmd, 0, 6);
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cmd[0] = INQUIRY_COMMAND;
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cmd[2] = page_code;
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cmd[4] = *buf_size > 255 ? 255 : *buf_size;
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status = sanei_scsi_cmd (fd, cmd, sizeof cmd, buf, buf_size);
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return status;
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}
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/*
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*
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*
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*/
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int
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sanei_epson_scsi_read (int fd, void *buf, size_t buf_size,
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SANE_Status * status)
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{
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u_char cmd[6];
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memset (cmd, 0, 6);
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cmd[0] = READ_6_COMMAND;
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cmd[2] = buf_size >> 16;
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cmd[3] = buf_size >> 8;
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cmd[4] = buf_size;
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if (SANE_STATUS_GOOD ==
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(*status = sanei_scsi_cmd (fd, cmd, sizeof (cmd), buf, &buf_size)))
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return buf_size;
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return 0;
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}
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/*
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*
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*
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*/
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int
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sanei_epson_scsi_write (int fd, const void *buf, size_t buf_size,
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SANE_Status * status)
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{
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u_char *cmd;
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cmd = alloca (8 + buf_size);
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memset (cmd, 0, 8);
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cmd[0] = WRITE_6_COMMAND;
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cmd[2] = buf_size >> 16;
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cmd[3] = buf_size >> 8;
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cmd[4] = buf_size;
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memcpy (cmd + 8, buf, buf_size);
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if (SANE_STATUS_GOOD ==
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(*status = sanei_scsi_cmd2 (fd, cmd, 6, cmd + 8, buf_size, NULL, NULL)))
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return buf_size;
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return 0;
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}
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