c8d13b6a7d
This implements the basic functionality for sending inquiries on OS X. The current implementation has some limitations: - it will not respect the selected device but pick the first Ipod found. - it is inefficient due to the way ipodpatcher expects this which doesn't really match how it works on OS X. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24382 a1c6a512-1295-4272-9138-f99709370657
391 lines
11 KiB
C
391 lines
11 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2006-2007 Dave Chapman
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <errno.h>
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#include "ipodio.h"
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#if defined(linux) || defined (__linux)
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#include <sys/mount.h>
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#include <linux/hdreg.h>
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#include <scsi/scsi_ioctl.h>
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#include <scsi/sg.h>
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#define IPOD_SECTORSIZE_IOCTL BLKSSZGET
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static void get_geometry(struct ipod_t* ipod)
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{
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struct hd_geometry geometry;
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if (!ioctl(ipod->dh, HDIO_GETGEO, &geometry)) {
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/* never use geometry.cylinders - it is truncated */
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ipod->num_heads = geometry.heads;
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ipod->sectors_per_track = geometry.sectors;
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} else {
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ipod->num_heads = 0;
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ipod->sectors_per_track = 0;
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}
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}
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/* Linux SCSI Inquiry code based on the documentation and example code from
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http://www.ibm.com/developerworks/linux/library/l-scsi-api/index.html
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*/
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int ipod_scsi_inquiry(struct ipod_t* ipod, int page_code,
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unsigned char* buf, int bufsize)
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{
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unsigned char cdb[6];
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struct sg_io_hdr hdr;
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unsigned char sense_buffer[255];
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memset(&hdr, 0, sizeof(hdr));
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hdr.interface_id = 'S'; /* this is the only choice we have! */
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hdr.flags = SG_FLAG_LUN_INHIBIT; /* this would put the LUN to 2nd byte of cdb*/
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/* Set xfer data */
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hdr.dxferp = buf;
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hdr.dxfer_len = bufsize;
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/* Set sense data */
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hdr.sbp = sense_buffer;
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hdr.mx_sb_len = sizeof(sense_buffer);
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/* Set the cdb format */
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cdb[0] = 0x12;
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cdb[1] = 1; /* Enable Vital Product Data (EVPD) */
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cdb[2] = page_code & 0xff;
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cdb[3] = 0;
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cdb[4] = 0xff;
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cdb[5] = 0; /* For control filed, just use 0 */
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hdr.dxfer_direction = SG_DXFER_FROM_DEV;
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hdr.cmdp = cdb;
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hdr.cmd_len = 6;
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int ret = ioctl(ipod->dh, SG_IO, &hdr);
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if (ret < 0) {
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return -1;
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} else {
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return 0;
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}
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}
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#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) \
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|| defined(__bsdi__) || defined(__DragonFly__)
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#include <sys/disk.h>
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#define IPOD_SECTORSIZE_IOCTL DIOCGSECTORSIZE
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/* TODO: Implement this function for BSD */
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static void get_geometry(struct ipod_t* ipod)
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{
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/* Are these universal for all ipods? */
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ipod->num_heads = 255;
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ipod->sectors_per_track = 63;
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}
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int ipod_scsi_inquiry(struct ipod_t* ipod, int page_code,
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unsigned char* buf, int bufsize)
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{
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/* TODO: Implement for BSD */
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(void)ipod;
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(void)page_code;
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(void)buf;
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(void)bufsize;
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return -1;
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}
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#elif defined(__APPLE__) && defined(__MACH__)
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/* OS X IOKit includes don't like VERSION being defined! */
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#undef VERSION
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#include <sys/disk.h>
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#include <CoreFoundation/CoreFoundation.h>
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#include <IOKit/IOKitLib.h>
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#include <IOKit/scsi-commands/SCSITaskLib.h>
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#include <IOKit/scsi-commands/SCSICommandOperationCodes.h>
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#define IPOD_SECTORSIZE_IOCTL DKIOCGETBLOCKSIZE
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/* TODO: Implement this function for Mac OS X */
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static void get_geometry(struct ipod_t* ipod)
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{
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/* Are these universal for all ipods? */
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ipod->num_heads = 255;
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ipod->sectors_per_track = 63;
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}
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int ipod_scsi_inquiry(struct ipod_t* ipod, int page_code,
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unsigned char* buf, int bufsize)
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{
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/* OS X doesn't allow to simply send out a SCSI inquiry request but
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* requires registering an interface handler first.
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* Currently this is done on each inquiry request which is somewhat
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* inefficient but the current ipodpatcher API doesn't really fit here.
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* Based on the documentation in Apple's document
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* "SCSI Architecture Model Device Interface Guide".
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*
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* WARNING: this code currently doesn't take the selected device into
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* account. It simply looks for an Ipod on the system and uses
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* the first match.
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*/
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(void)ipod;
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int result = 0;
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/* first, create a dictionary to match the device. This is needed to get the
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* service. */
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CFMutableDictionaryRef match_dict;
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match_dict = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, NULL, NULL);
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if(match_dict == NULL)
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return -1;
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/* set value to match. In case of the Ipod this is "iPodUserClientDevice". */
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CFMutableDictionaryRef sub_dict;
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sub_dict = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, NULL, NULL);
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CFDictionarySetValue(sub_dict, CFSTR(kIOPropertySCSITaskDeviceCategory),
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CFSTR("iPodUserClientDevice"));
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CFDictionarySetValue(match_dict, CFSTR(kIOPropertyMatchKey), sub_dict);
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if(sub_dict == NULL)
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return -1;
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/* get an iterator for searching for the service. */
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kern_return_t kr;
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io_iterator_t iterator = IO_OBJECT_NULL;
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/* get matching services from IO registry. Consumes one reference to
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* the dictionary, so no need to release that. */
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kr = IOServiceGetMatchingServices(kIOMasterPortDefault, match_dict, &iterator);
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if(!iterator | (kr != kIOReturnSuccess))
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return -1;
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/* get interface and obtain exclusive access */
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SInt32 score;
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HRESULT herr;
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kern_return_t err;
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IOCFPlugInInterface **plugin_interface = NULL;
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SCSITaskDeviceInterface **interface = NULL;
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io_service_t device = IO_OBJECT_NULL;
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device = IOIteratorNext(iterator);
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err = IOCreatePlugInInterfaceForService(device, kIOSCSITaskDeviceUserClientTypeID,
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kIOCFPlugInInterfaceID, &plugin_interface,
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&score);
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if(err != noErr) {
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return -1;
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}
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/* query the plugin interface for task interface */
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herr = (*plugin_interface)->QueryInterface(plugin_interface,
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CFUUIDGetUUIDBytes(kIOSCSITaskDeviceInterfaceID), (LPVOID*)&interface);
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if(herr != S_OK) {
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IODestroyPlugInInterface(plugin_interface);
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return -1;
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}
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err = (*interface)->ObtainExclusiveAccess(interface);
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if(err != noErr) {
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(*interface)->Release(interface);
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IODestroyPlugInInterface(plugin_interface);
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return -1;
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}
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/* do the inquiry */
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SCSITaskInterface **task = NULL;
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task = (*interface)->CreateSCSITask(interface);
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if(task != NULL) {
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kern_return_t err;
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SCSITaskStatus task_status;
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IOVirtualRange* range;
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SCSI_Sense_Data sense_data;
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SCSICommandDescriptorBlock cdb;
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UInt64 transfer_count = 0;
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memset(buf, 0, bufsize);
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/* allocate virtual range for buffer. */
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range = (IOVirtualRange*) malloc(sizeof(IOVirtualRange));
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memset(&sense_data, 0, sizeof(sense_data));
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memset(cdb, 0, sizeof(cdb));
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/* set up range. address is buffer address, length is request size. */
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range->address = (IOVirtualAddress)buf;
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range->length = bufsize;
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/* setup CDB */
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cdb[0] = 0x12; /* inquiry */
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cdb[1] = 1;
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cdb[2] = page_code;
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cdb[4] = bufsize;
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/* set cdb in task */
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err = (*task)->SetCommandDescriptorBlock(task, cdb, kSCSICDBSize_6Byte);
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if(err != kIOReturnSuccess) {
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result = -1;
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goto cleanup;
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}
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err = (*task)->SetScatterGatherEntries(task, range, 1, bufsize,
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kSCSIDataTransfer_FromTargetToInitiator);
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if(err != kIOReturnSuccess) {
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result = -1;
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goto cleanup;
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}
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/* set timeout */
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err = (*task)->SetTimeoutDuration(task, 10000);
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if(err != kIOReturnSuccess) {
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result = -1;
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goto cleanup;
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}
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/* request data */
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err = (*task)->ExecuteTaskSync(task, &sense_data, &task_status, &transfer_count);
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if(err != kIOReturnSuccess) {
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result = -1;
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goto cleanup;
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}
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/* cleanup */
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free(range);
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/* release task interface */
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(*task)->Release(task);
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}
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else {
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result = -1;
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}
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cleanup:
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/* cleanup interface */
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(*interface)->ReleaseExclusiveAccess(interface);
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(*interface)->Release(interface);
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IODestroyPlugInInterface(plugin_interface);
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return result;
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}
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#else
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#error No sector-size detection implemented for this platform
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#endif
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#if defined(__APPLE__) && defined(__MACH__)
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static int ipod_unmount(struct ipod_t* ipod)
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{
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char cmd[4096];
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int res;
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sprintf(cmd, "/usr/sbin/diskutil unmount \"%ss2\"",ipod->diskname);
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fprintf(stderr,"[INFO] ");
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res = system(cmd);
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if (res==0) {
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return 0;
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} else {
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perror("Unmount failed");
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return -1;
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}
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}
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#endif
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void ipod_print_error(char* msg)
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{
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perror(msg);
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}
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int ipod_open(struct ipod_t* ipod, int silent)
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{
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ipod->dh=open(ipod->diskname,O_RDONLY);
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if (ipod->dh < 0) {
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if (!silent) perror(ipod->diskname);
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if(errno == EACCES) return -2;
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else return -1;
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}
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/* Read information about the disk */
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if(ioctl(ipod->dh,IPOD_SECTORSIZE_IOCTL,&ipod->sector_size) < 0) {
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ipod->sector_size=512;
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if (!silent) {
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fprintf(stderr,"[ERR] ioctl() call to get sector size failed, defaulting to %d\n"
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,ipod->sector_size);
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}
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}
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get_geometry(ipod);
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return 0;
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}
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int ipod_reopen_rw(struct ipod_t* ipod)
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{
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#if defined(__APPLE__) && defined(__MACH__)
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if (ipod_unmount(ipod) < 0)
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return -1;
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#endif
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close(ipod->dh);
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ipod->dh=open(ipod->diskname,O_RDWR);
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if (ipod->dh < 0) {
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perror(ipod->diskname);
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return -1;
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}
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return 0;
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}
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int ipod_close(struct ipod_t* ipod)
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{
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close(ipod->dh);
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return 0;
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}
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int ipod_alloc_buffer(unsigned char** sectorbuf, int bufsize)
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{
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*sectorbuf=malloc(bufsize);
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if (*sectorbuf == NULL) {
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return -1;
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}
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return 0;
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}
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int ipod_seek(struct ipod_t* ipod, unsigned long pos)
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{
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off_t res;
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res = lseek(ipod->dh, pos, SEEK_SET);
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if (res == -1) {
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return -1;
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}
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return 0;
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}
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ssize_t ipod_read(struct ipod_t* ipod, unsigned char* buf, int nbytes)
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{
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return read(ipod->dh, buf, nbytes);
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}
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ssize_t ipod_write(struct ipod_t* ipod, unsigned char* buf, int nbytes)
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{
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return write(ipod->dh, buf, nbytes);
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}
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