kopia lustrzana https://gitlab.com/sane-project/backends
104 wiersze
2.0 KiB
C
104 wiersze
2.0 KiB
C
#undef BACKEND_NAME
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#define BACKEND_NAME epson2_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 "epson2_scsi.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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/* sense handler for the sanei_scsi_xxx comands */
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SANE_Status
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sanei_epson2_scsi_sense_handler(int scsi_fd,
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unsigned 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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DBG(2, "%s: sense code = 0x%02x\n",
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__func__, result[0]);
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return SANE_STATUS_IO_ERROR;
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} else {
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return SANE_STATUS_GOOD;
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}
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}
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SANE_Status
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sanei_epson2_scsi_inquiry(int fd, void *buf, size_t *buf_size)
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{
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unsigned 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[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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SANE_Status
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sanei_epson2_scsi_test_unit_ready(int fd)
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{
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unsigned char cmd[6];
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memset(cmd, 0, 6);
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cmd[0] = TEST_UNIT_READY_COMMAND;
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return sanei_scsi_cmd2(fd, cmd, sizeof(cmd), NULL, 0, NULL, NULL);
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}
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int
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sanei_epson2_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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unsigned 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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*status = sanei_scsi_cmd2(fd, cmd, sizeof(cmd), NULL, 0, buf, &buf_size);
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if (*status == SANE_STATUS_GOOD)
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return buf_size;
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return 0;
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}
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int
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sanei_epson2_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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unsigned char cmd[6];
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memset(cmd, 0, sizeof(cmd));
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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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*status = sanei_scsi_cmd2(fd, cmd, sizeof(cmd), buf, buf_size, NULL, NULL);
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if (*status == SANE_STATUS_GOOD)
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return buf_size;
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return 0;
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}
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