From 6e9c41a892ed0e0da326e0278b3221ce3f5713b8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Mon, 6 Oct 2014 14:00:40 +0200 Subject: Initial import of sane-backends version 1.0.24-1.2 --- backend/epson2_scsi.c | 103 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 backend/epson2_scsi.c (limited to 'backend/epson2_scsi.c') diff --git a/backend/epson2_scsi.c b/backend/epson2_scsi.c new file mode 100644 index 0000000..89394cd --- /dev/null +++ b/backend/epson2_scsi.c @@ -0,0 +1,103 @@ +#undef BACKEND_NAME +#define BACKEND_NAME epson2_scsi + +#include "../include/sane/config.h" +#include "../include/sane/sanei_debug.h" +#include "../include/sane/sanei_scsi.h" +#include "epson2_scsi.h" + +#ifdef HAVE_STDDEF_H +#include +#endif + +#ifdef HAVE_STDLIB_H +#include +#endif + +#ifdef NEED_SYS_TYPES_H +#include +#endif + +#include /* for memset and memcpy */ +#include + +/* sense handler for the sanei_scsi_xxx comands */ +SANE_Status +sanei_epson2_scsi_sense_handler(int scsi_fd, + unsigned char *result, void *arg) +{ + /* to get rid of warnings */ + scsi_fd = scsi_fd; + arg = arg; + + if (result[0] && result[0] != 0x70) { + DBG(2, "%s: sense code = 0x%02x\n", + __FUNCTION__, result[0]); + return SANE_STATUS_IO_ERROR; + } else { + return SANE_STATUS_GOOD; + } +} + +SANE_Status +sanei_epson2_scsi_inquiry(int fd, void *buf, size_t *buf_size) +{ + unsigned char cmd[6]; + int status; + + memset(cmd, 0, 6); + cmd[0] = INQUIRY_COMMAND; + cmd[4] = *buf_size > 255 ? 255 : *buf_size; + status = sanei_scsi_cmd(fd, cmd, sizeof cmd, buf, buf_size); + + return status; +} + +SANE_Status +sanei_epson2_scsi_test_unit_ready(int fd) +{ + unsigned char cmd[6]; + + memset(cmd, 0, 6); + cmd[0] = TEST_UNIT_READY_COMMAND; + + return sanei_scsi_cmd2(fd, cmd, sizeof(cmd), NULL, 0, NULL, NULL); +} + +int +sanei_epson2_scsi_read(int fd, void *buf, size_t buf_size, + SANE_Status *status) +{ + unsigned 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; + + *status = sanei_scsi_cmd2(fd, cmd, sizeof(cmd), NULL, 0, buf, &buf_size); + if (*status == SANE_STATUS_GOOD) + return buf_size; + + return 0; +} + +int +sanei_epson2_scsi_write(int fd, const void *buf, size_t buf_size, + SANE_Status *status) +{ + unsigned char cmd[6]; + + memset(cmd, 0, sizeof(cmd)); + cmd[0] = WRITE_6_COMMAND; + cmd[2] = buf_size >> 16; + cmd[3] = buf_size >> 8; + cmd[4] = buf_size; + + *status = sanei_scsi_cmd2(fd, cmd, sizeof(cmd), buf, buf_size, NULL, NULL); + if (*status == SANE_STATUS_GOOD) + return buf_size; + + return 0; +} -- cgit v1.2.3