4  * vendor-specific code for SCSI CD-ROM's goes here.
20  * support for XA/multisession-CD's
22  *   - NEC:     Detection and support of multisession CD's.
24  *   - TOSHIBA: Detection and support of multisession CD's.
27  *   - SONY:    Detection and support of multisession CD's.
34  *              HP-Writers only ??? Maybe other CD-Writers work with this too ?
64 #define VENDOR_CYGNAL_85ED     5	/* CD-on-a-chip */
68 void sr_vendor_init(Scsi_CD *cd)  in sr_vendor_init()  argument
70 	const char *vendor = cd->device->vendor;  in sr_vendor_init()
71 	const char *model = cd->device->model;  in sr_vendor_init()
74 	cd->vendor = VENDOR_SCSI3;  in sr_vendor_init()
75 	if (cd->readcd_known)  in sr_vendor_init()
79 	if (cd->device->type == TYPE_WORM) {  in sr_vendor_init()
80 		cd->vendor = VENDOR_WRITER;  in sr_vendor_init()
83 		cd->vendor = VENDOR_NEC;  in sr_vendor_init()
84 		if (!strncmp(model, "CD-ROM DRIVE:25", 15) ||  in sr_vendor_init()
85 		    !strncmp(model, "CD-ROM DRIVE:36", 15) ||  in sr_vendor_init()
86 		    !strncmp(model, "CD-ROM DRIVE:83", 15) ||  in sr_vendor_init()
87 		    !strncmp(model, "CD-ROM DRIVE:84 ", 16)  in sr_vendor_init()
91 		    || !strncmp(model, "CD-ROM DRIVE:500", 16)  in sr_vendor_init()
95 			cd->cdi.mask |= CDC_MULTI_SESSION;  in sr_vendor_init()
98 		cd->vendor = VENDOR_TOSHIBA;  in sr_vendor_init()
102 		/* The Beurer GL50 evo uses a Cygnal-manufactured CD-on-a-chip  in sr_vendor_init()
109 		cd->vendor = VENDOR_CYGNAL_85ED;  in sr_vendor_init()
110 		cd->cdi.mask |= (  in sr_vendor_init()
124 int sr_set_blocklength(Scsi_CD *cd, int blocklength)  in sr_set_blocklength()  argument
131 	if (cd->vendor == VENDOR_TOSHIBA)  in sr_set_blocklength()
139 	sr_printk(KERN_INFO, cd, "MODE SELECT 0x%x/%d\n", density, blocklength);  in sr_set_blocklength()
155 	if (0 == (rc = sr_do_ioctl(cd, &cgc))) {  in sr_set_blocklength()
156 		cd->device->sector_size = blocklength;  in sr_set_blocklength()
160 		sr_printk(KERN_INFO, cd,  in sr_set_blocklength()
168 /* This function gets called after a media change. Checks if the CD is
173 	Scsi_CD *cd = cdi->handle;  in sr_cd_check()  local
179 	if (cd->cdi.mask & CDC_MULTI_SESSION)  in sr_cd_check()
192 	switch (cd->vendor) {  in sr_cd_check()
203 		rc = sr_do_ioctl(cd, &cgc);  in sr_cd_check()
207 			sr_printk(KERN_INFO, cd, "Hmm, seems the drive "  in sr_cd_check()
208 			   "doesn't support multisession CD's\n");  in sr_cd_check()
230 			rc = sr_do_ioctl(cd, &cgc);  in sr_cd_check()
234 				sr_printk(KERN_INFO, cd, "Hmm, seems the cdrom "  in sr_cd_check()
235 					  "doesn't support multisession CD's\n");  in sr_cd_check()
250 			/* we request some disc information (is it a XA-CD ?,  in sr_cd_check()
259 			rc = sr_do_ioctl(cd, &cgc);  in sr_cd_check()
261 				sr_printk(KERN_INFO, cd, "Hmm, seems the drive "  in sr_cd_check()
262 					  "doesn't support multisession CD's\n");  in sr_cd_check()
274 			sr_set_blocklength(cd, 2048);  in sr_cd_check()
287 		rc = sr_do_ioctl(cd, &cgc);  in sr_cd_check()
292 			sr_printk(KERN_WARNING, cd,  in sr_cd_check()
305 		rc = sr_do_ioctl(cd, &cgc);  in sr_cd_check()
315 		sr_printk(KERN_WARNING, cd,  in sr_cd_check()
317 			  cd->vendor);  in sr_cd_check()
322 	cd->ms_offset = sector;  in sr_cd_check()
323 	cd->xa_flag = 0;  in sr_cd_check()
324 	if (CDS_AUDIO != sr_disk_status(cdi) && 1 == sr_is_xa(cd))  in sr_cd_check()
325 		cd->xa_flag = 1;  in sr_cd_check()
327 	if (2048 != cd->device->sector_size) {  in sr_cd_check()
328 		sr_set_blocklength(cd, 2048);  in sr_cd_check()
335 		sr_printk(KERN_DEBUG, cd, "multisession offset=%lu\n",  in sr_cd_check()