1 /* 2 * 3 * Copyright (C) 2012 secunet Security Networks AG 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _STORAGE_ATAPI_H 30 #define _STORAGE_ATAPI_H 31 32 #include <stdint.h> 33 34 #include "storage.h" 35 #include "ata.h" 36 37 /* ATAPI commands */ 38 enum { 39 ATAPI_TEST_UNIT_READY = 0x00, 40 ATAPI_REQUEST_SENSE = 0x03, 41 ATAPI_START_STOP_UNIT = 0x1b, 42 ATAPI_PREVENT_ALLOW_MEDIUM_REMOVAL = 0x1e, 43 ATAPI_READ_CAPACITY = 0x25, 44 ATAPI_READ_10 = 0x28, 45 }; 46 47 /* ATAPI sense codes */ 48 enum { 49 ATAPI_SENSE_NOT_READY = 0x02, 50 ATAPI_SENSE_UNIT_ATTENTION = 0x06, 51 }; 52 53 /* ATAPI additional sense codes (particularize the above) */ 54 enum { 55 ATAPI_ADDITIONAL_SENSE_LOGICAL_UNIT_NOT_READY = 0x04, 56 ATAPI_ADDITIONAL_SENSE_MEDIUM_NOT_PRESENT = 0x3a, 57 }; 58 59 struct atapi_dev; 60 61 typedef struct atapi_dev { 62 /* Keep this at offset 0 so we can cast to ata_dev_t. */ 63 ata_dev_t ata_dev; 64 65 int (*identify)(struct ata_dev *, u8 *buf); /* yes, ata_dev_t */ 66 ssize_t (*packet_read_cmd)(struct atapi_dev *, const u8 *cmd, size_t cmdlen, u8 *buf, size_t buflen); 67 68 u8 sense_data[19]; /* We needed 19 in usbmsc.c. */ 69 u8 medium_present; 70 71 void (*detach_device)(struct atapi_dev *); 72 } atapi_dev_t; 73 74 int atapi_attach_device(atapi_dev_t *, storage_port_t); 75 76 #endif 77