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#include "epkowa_scsi.h"
#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef NEED_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <string.h> /* for memset and memcpy */
/*
* sense handler for the sanei_scsi_XXX comands
*/
SANE_Status
sanei_epson_scsi_sense_handler (int scsi_fd, u_char * result, void *arg)
{
/* to get rid of warnings */
scsi_fd = scsi_fd;
arg = arg;
if (result[0] && result[0] != 0x70)
{
log_data ("SCSI sense code = 0x%02x", result[0]);
return SANE_STATUS_IO_ERROR;
}
else
{
return SANE_STATUS_GOOD;
}
}
/*
*
*
*/
SANE_Status
sanei_epson_scsi_inquiry (int fd, int page_code, void *buf, size_t * buf_size)
{
u_char cmd[6];
int status;
memset (cmd, 0, 6);
cmd[0] = INQUIRY_COMMAND;
cmd[2] = page_code;
cmd[4] = *buf_size > 255 ? 255 : *buf_size;
status = sanei_scsi_cmd (fd, cmd, sizeof cmd, buf, buf_size);
return status;
}
/*
*
*
*/
int
sanei_epson_scsi_read (int fd, void *buf, size_t buf_size,
SANE_Status * status)
{
u_char cmd[6];
memset (cmd, 0, 6);
cmd[0] = READ_6_COMMAND;
cmd[2] = buf_size >> 16;
cmd[3] = buf_size >> 8;
cmd[4] = buf_size;
if (SANE_STATUS_GOOD ==
(*status = sanei_scsi_cmd (fd, cmd, sizeof (cmd), buf, &buf_size)))
return buf_size;
return 0;
}
/*
*
*
*/
int
sanei_epson_scsi_write (int fd, const void *buf, size_t buf_size,
SANE_Status * status)
{
u_char *cmd;
cmd = t_alloca (8 + buf_size, u_char);
memset (cmd, 0, 8);
cmd[0] = WRITE_6_COMMAND;
cmd[2] = buf_size >> 16;
cmd[3] = buf_size >> 8;
cmd[4] = buf_size;
memcpy (cmd + 8, buf, buf_size);
if (SANE_STATUS_GOOD ==
(*status = sanei_scsi_cmd2 (fd, cmd, 6, cmd + 8, buf_size, NULL, NULL)))
return buf_size;
return 0;
}
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