51 static void bsdtocpulabel(struct disklabel *lp, struct cpu_disklabel *clp);
52 static void cputobsdlabel(struct disklabel *lp, struct cpu_disklabel *clp);
55 static void printlp(struct disklabel *lp, const char *str);
69 readdisklabel(dev_t dev, void (*strat)(struct buf *), struct disklabel *lp,  in readdisklabel()  argument
76 	bp = geteblk((int)lp->d_secsize);  in readdisklabel()
79 	bp->b_dev = dev;  in readdisklabel()
80 	bp->b_blkno = 0; /* contained in block 0 */  in readdisklabel()
81 	bp->b_bcount = lp->d_secsize;  in readdisklabel()
82 	bp->b_flags |= B_READ;  in readdisklabel()
83 	bp->b_cylinder = 0; /* contained in block 0 */  in readdisklabel()
89 		memcpy(clp, bp->b_data, sizeof (struct cpu_disklabel));  in readdisklabel()
94 	if (msg || clp->magic1 != DISKMAGIC || clp->magic2 != DISKMAGIC) {  in readdisklabel()
98 	cputobsdlabel(lp, clp);  in readdisklabel()
101 		printlp(lp, "readdisklabel: bsd label");  in readdisklabel()
112 writedisklabel(dev_t dev, void (*strat)(struct buf *), struct disklabel *lp,  in writedisklabel()  argument
120 		printlp(lp, "writedisklabel: bsd label");  in writedisklabel()
125 	 * obtain buffer to read initial cpu_disklabel, for bootloader size :-)  in writedisklabel()
127 	bp = geteblk((int)lp->d_secsize);  in writedisklabel()
130 	bp->b_dev = dev;  in writedisklabel()
131 	bp->b_blkno = 0; /* contained in block 0 */  in writedisklabel()
132 	bp->b_bcount = lp->d_secsize;  in writedisklabel()
133 	bp->b_flags |= B_READ;  in writedisklabel()
134 	bp->b_cylinder = 0; /* contained in block 0 */  in writedisklabel()
140 		memcpy(clp, bp->b_data, sizeof(struct cpu_disklabel));  in writedisklabel()
149 	bsdtocpulabel(lp, clp);  in writedisklabel()
157 	if (lp->d_magic == DISKMAGIC && lp->d_magic2 == DISKMAGIC &&  in writedisklabel()
158 	    dkcksum(lp) == 0) {  in writedisklabel()
160 		bp = geteblk((int)lp->d_secsize);  in writedisklabel()
162 		memcpy(bp->b_data, clp, sizeof(struct cpu_disklabel));  in writedisklabel()
167 		bp->b_dev = dev;  in writedisklabel()
168 		bp->b_blkno = 0; /* contained in block 0 */  in writedisklabel()
169 		bp->b_bcount = lp->d_secsize;  in writedisklabel()
170 		bp->b_flags |= B_WRITE;  in writedisklabel()
171 		bp->b_cylinder = 0; /* contained in block 0 */  in writedisklabel()
182 bsdtocpulabel(struct disklabel *lp, struct cpu_disklabel *clp)  in bsdtocpulabel()  argument
186 	clp->magic1 = lp->d_magic;  in bsdtocpulabel()
187 	clp->type = lp->d_type;  in bsdtocpulabel()
188 	clp->subtype = lp->d_subtype;  in bsdtocpulabel()
189 	strncpy(clp->vid_vd, lp->d_typename, 16);  in bsdtocpulabel()
190 	strncpy(clp->packname, lp->d_packname, 16);  in bsdtocpulabel()
191 	clp->cfg_psm = lp->d_secsize;  in bsdtocpulabel()
192 	clp->cfg_spt = lp->d_nsectors;  in bsdtocpulabel()
193 	clp->cfg_trk = lp->d_ncylinders;	/* trk is really num of cyl! */  in bsdtocpulabel()
194 	clp->cfg_hds = lp->d_ntracks;  in bsdtocpulabel()
196 	clp->secpercyl = lp->d_secpercyl;  in bsdtocpulabel()
197 	clp->secperunit = lp->d_secperunit;  in bsdtocpulabel()
198 	clp->sparespertrack = lp->d_sparespertrack;  in bsdtocpulabel()
199 	clp->sparespercyl = lp->d_sparespercyl;  in bsdtocpulabel()
200 	clp->acylinders = lp->d_acylinders;  in bsdtocpulabel()
201 	clp->rpm = lp->d_rpm;  in bsdtocpulabel()
203 	clp->cfg_ilv = lp->d_interleave;  in bsdtocpulabel()
204 	clp->cfg_sof = lp->d_trackskew;  in bsdtocpulabel()
205 	clp->cylskew = lp->d_cylskew;  in bsdtocpulabel()
206 	clp->headswitch = lp->d_headswitch;  in bsdtocpulabel()
209 	if (lp->d_trkseek < 6) {  in bsdtocpulabel()
210 		clp->cfg_ssr = 0;  in bsdtocpulabel()
211 	} else if (lp->d_trkseek < 10) {  in bsdtocpulabel()
212 		clp->cfg_ssr = 1;  in bsdtocpulabel()
213 	} else if (lp->d_trkseek < 15) {  in bsdtocpulabel()
214 		clp->cfg_ssr = 2;  in bsdtocpulabel()
215 	} else if (lp->d_trkseek < 20) {  in bsdtocpulabel()
216 		clp->cfg_ssr = 3;  in bsdtocpulabel()
218 		clp->cfg_ssr = 4;  in bsdtocpulabel()
221 	clp->flags = lp->d_flags;  in bsdtocpulabel()
223 		clp->drivedata[i] = lp->d_drivedata[i];  in bsdtocpulabel()
225 		clp->spare[i] = lp->d_spare[i];  in bsdtocpulabel()
227 	clp->magic2 = lp->d_magic2;  in bsdtocpulabel()
228 	clp->checksum = lp->d_checksum;  in bsdtocpulabel()
229 	clp->partitions = lp->d_npartitions;  in bsdtocpulabel()
230 	clp->bbsize = lp->d_bbsize;  in bsdtocpulabel()
231 	clp->sbsize = lp->d_sbsize;  in bsdtocpulabel()
232 	clp->checksum = lp->d_checksum;  in bsdtocpulabel()
234 	memcpy(clp->vid_4, &lp->d_partitions[0], sizeof(struct partition) * 4);  in bsdtocpulabel()
235 	memset(clp->cfg_4, 0, sizeof(struct partition) * 12);  in bsdtocpulabel()
236 	memcpy(clp->cfg_4, &lp->d_partitions[4], sizeof(struct partition)   in bsdtocpulabel()
237 	    * ((MAXPARTITIONS < 16) ? (MAXPARTITIONS - 4) : 12));  in bsdtocpulabel()
244 	memcpy(clp->vid_id, VID_ID, sizeof(clp->vid_id));  in bsdtocpulabel()
245 	clp->vid_oss = VID_OSS;  in bsdtocpulabel()
246 	clp->vid_osl = VID_OSL;  in bsdtocpulabel()
247 	clp->vid_osa_u = VID_OSAU;  in bsdtocpulabel()
248 	clp->vid_osa_l = VID_OSAL;  in bsdtocpulabel()
249 	clp->vid_cas = VID_CAS;  in bsdtocpulabel()
250 	clp->vid_cal = VID_CAL;  in bsdtocpulabel()
251 	memcpy(clp->vid_mot, VID_MOT, sizeof(clp->vid_mot));  in bsdtocpulabel()
252 	clp->cfg_rec = CFG_REC;  in bsdtocpulabel()
253 	clp->cfg_psm = CFG_PSM;  in bsdtocpulabel()
257 cputobsdlabel(struct disklabel *lp, struct cpu_disklabel *clp)  in cputobsdlabel()  argument
261 	lp->d_magic = clp->magic1;  in cputobsdlabel()
262 	lp->d_type = clp->type;  in cputobsdlabel()
263 	lp->d_subtype = clp->subtype;  in cputobsdlabel()
264 	strncpy(lp->d_typename, clp->vid_vd, 16);  in cputobsdlabel()
265 	strncpy(lp->d_packname, clp->packname, 16);  in cputobsdlabel()
266 	lp->d_secsize = clp->cfg_psm;  in cputobsdlabel()
267 	lp->d_nsectors = clp->cfg_spt;  in cputobsdlabel()
268 	lp->d_ncylinders = clp->cfg_trk; /* trk is really num of cyl! */  in cputobsdlabel()
269 	lp->d_ntracks = clp->cfg_hds;  in cputobsdlabel()
271 	lp->d_secpercyl = clp->secpercyl;  in cputobsdlabel()
272 	lp->d_secperunit = clp->secperunit;  in cputobsdlabel()
273 	lp->d_secpercyl = clp->secpercyl;  in cputobsdlabel()
274 	lp->d_secperunit = clp->secperunit;  in cputobsdlabel()
275 	lp->d_sparespertrack = clp->sparespertrack;  in cputobsdlabel()
276 	lp->d_sparespercyl = clp->sparespercyl;  in cputobsdlabel()
277 	lp->d_acylinders = clp->acylinders;  in cputobsdlabel()
278 	lp->d_rpm = clp->rpm;  in cputobsdlabel()
279 	lp->d_interleave = clp->cfg_ilv;  in cputobsdlabel()
280 	lp->d_trackskew = clp->cfg_sof;  in cputobsdlabel()
281 	lp->d_cylskew = clp->cylskew;  in cputobsdlabel()
282 	lp->d_headswitch = clp->headswitch;  in cputobsdlabel()
285 	switch (clp->cfg_ssr) {  in cputobsdlabel()
287 		lp->d_trkseek = 0;  in cputobsdlabel()
290 		lp->d_trkseek = 6;  in cputobsdlabel()
293 		lp->d_trkseek = 10;  in cputobsdlabel()
296 		lp->d_trkseek = 15;  in cputobsdlabel()
299 		lp->d_trkseek = 20;  in cputobsdlabel()
302 		lp->d_trkseek = 0;  in cputobsdlabel()
304 	lp->d_flags = clp->flags;  in cputobsdlabel()
306 		lp->d_drivedata[i] = clp->drivedata[i];  in cputobsdlabel()
308 		lp->d_spare[i] = clp->spare[i];  in cputobsdlabel()
310 	lp->d_magic2 = clp->magic2;  in cputobsdlabel()
311 	lp->d_checksum = clp->checksum;  in cputobsdlabel()
312 	lp->d_npartitions = clp->partitions;  in cputobsdlabel()
313 	lp->d_bbsize = clp->bbsize;  in cputobsdlabel()
314 	lp->d_sbsize = clp->sbsize;  in cputobsdlabel()
316 	memcpy(&lp->d_partitions[0], clp->vid_4, sizeof(struct partition) * 4);  in cputobsdlabel()
317 	memcpy(&lp->d_partitions[4], clp->cfg_4, sizeof(struct partition)   in cputobsdlabel()
318 	    * ((MAXPARTITIONS < 16) ? (MAXPARTITIONS - 4) : 12));  in cputobsdlabel()
319 	lp->d_checksum = 0;  in cputobsdlabel()
320 	lp->d_checksum = dkcksum(lp);  in cputobsdlabel()
323 		printlp(lp, "translated label read from disk\n");  in cputobsdlabel()
330 printlp(struct disklabel *lp, const char *str)  in printlp()  argument
335 	printf("magic1 %x\n", lp->d_magic);  in printlp()
336 	printf("magic2 %x\n", lp->d_magic2);  in printlp()
337 	printf("typename %s\n", lp->d_typename);  in printlp()
339 	    lp->d_secsize, lp->d_nsectors, lp->d_ntracks, lp->d_ncylinders);  in printlp()
340 	printf("Num partitions %x\n", lp->d_npartitions);  in printlp()
341 	for (i = 0; i < lp->d_npartitions; i++) {  in printlp()
342 		struct partition *part = &lp->d_partitions[i];  in printlp()
343 		const char *fstyp = fstypenames[part->p_fstype];  in printlp()
346 		    'a' + i, part->p_size, part->p_offset, fstyp,  in printlp()
347 		    part->p_frag, part->p_cpg);  in printlp()
357 	printf("magic1 %lx\n", clp->magic1);  in printclp()
358 	printf("magic2 %lx\n", clp->magic2);  in printclp()
359 	printf("typename %s\n", clp->vid_vd);  in printclp()
361 	    clp->cfg_psm, clp->cfg_spt, clp->cfg_hds, clp->cfg_trk);  in printclp()
362 	printf("Num partitions %x\n", clp->partitions);  in printclp()
363 	maxp = clp->partitions < 16 ? clp->partitions : 16;  in printclp()
369 			part = (void *)&clp->vid_4[0];  in printclp()
372 			part = (void *)&clp->cfg_4[0];  in printclp()
373 			part = &part[i-4];  in printclp()
376 		fstyp = fstypenames[part->p_fstype];  in printclp()
379 		    'a' + i, part->p_size, part->p_offset, fstyp,  in printclp()
380 		    part->p_frag, part->p_cpg);  in printclp()