1*e7cbe64fSgw25295 /* 2*e7cbe64fSgw25295 * CDDL HEADER START 3*e7cbe64fSgw25295 * 4*e7cbe64fSgw25295 * The contents of this file are subject to the terms of the 5*e7cbe64fSgw25295 * Common Development and Distribution License (the "License"). 6*e7cbe64fSgw25295 * You may not use this file except in compliance with the License. 7*e7cbe64fSgw25295 * 8*e7cbe64fSgw25295 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*e7cbe64fSgw25295 * or http://www.opensolaris.org/os/licensing. 10*e7cbe64fSgw25295 * See the License for the specific language governing permissions 11*e7cbe64fSgw25295 * and limitations under the License. 12*e7cbe64fSgw25295 * 13*e7cbe64fSgw25295 * When distributing Covered Code, include this CDDL HEADER in each 14*e7cbe64fSgw25295 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*e7cbe64fSgw25295 * If applicable, add the following below this CDDL HEADER, with the 16*e7cbe64fSgw25295 * fields enclosed by brackets "[]" replaced with your own identifying 17*e7cbe64fSgw25295 * information: Portions Copyright [yyyy] [name of copyright owner] 18*e7cbe64fSgw25295 * 19*e7cbe64fSgw25295 * CDDL HEADER END 20*e7cbe64fSgw25295 */ 21*e7cbe64fSgw25295 /* 22*e7cbe64fSgw25295 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23*e7cbe64fSgw25295 * Use is subject to license terms. 24*e7cbe64fSgw25295 */ 25*e7cbe64fSgw25295 #pragma ident "%Z%%M% %I% %E% SMI" 26*e7cbe64fSgw25295 27*e7cbe64fSgw25295 #include <sys/param.h> 28*e7cbe64fSgw25295 #include <sys/sysmacros.h> 29*e7cbe64fSgw25295 #include <sys/stat.h> 30*e7cbe64fSgw25295 #include <sys/bootvfs.h> 31*e7cbe64fSgw25295 #include <sys/bootsyms.h> 32*e7cbe64fSgw25295 #include <sys/promif.h> 33*e7cbe64fSgw25295 #include <sys/salib.h> 34*e7cbe64fSgw25295 35*e7cbe64fSgw25295 /* 36*e7cbe64fSgw25295 * Function prototypes 37*e7cbe64fSgw25295 */ 38*e7cbe64fSgw25295 static int promfs_mountroot(char *str); 39*e7cbe64fSgw25295 static int promfs_unmountroot(void); 40*e7cbe64fSgw25295 static int promfs_open(char *filename, int flags); 41*e7cbe64fSgw25295 static int promfs_close(int fd); 42*e7cbe64fSgw25295 static ssize_t promfs_read(int fd, caddr_t buf, size_t size); 43*e7cbe64fSgw25295 static off_t promfs_lseek(int fd, off_t offset, int whence); 44*e7cbe64fSgw25295 static int promfs_fstat(int fd, struct bootstat *stp); 45*e7cbe64fSgw25295 static void promfs_closeall(int flag); 46*e7cbe64fSgw25295 47*e7cbe64fSgw25295 struct boot_fs_ops promfs_ops = { 48*e7cbe64fSgw25295 "promfs", 49*e7cbe64fSgw25295 promfs_mountroot, 50*e7cbe64fSgw25295 promfs_unmountroot, 51*e7cbe64fSgw25295 promfs_open, 52*e7cbe64fSgw25295 promfs_close, 53*e7cbe64fSgw25295 promfs_read, 54*e7cbe64fSgw25295 promfs_lseek, 55*e7cbe64fSgw25295 promfs_fstat, 56*e7cbe64fSgw25295 promfs_closeall, 57*e7cbe64fSgw25295 NULL 58*e7cbe64fSgw25295 }; 59*e7cbe64fSgw25295 60*e7cbe64fSgw25295 static ihandle_t fsih; 61*e7cbe64fSgw25295 62*e7cbe64fSgw25295 static int 63*e7cbe64fSgw25295 promfs_mountroot(char *str) 64*e7cbe64fSgw25295 { 65*e7cbe64fSgw25295 66*e7cbe64fSgw25295 (void) prom_getprop(prom_chosennode(), str, (caddr_t)&fsih); 67*e7cbe64fSgw25295 return (fsih == -1); 68*e7cbe64fSgw25295 } 69*e7cbe64fSgw25295 70*e7cbe64fSgw25295 static int 71*e7cbe64fSgw25295 promfs_unmountroot(void) 72*e7cbe64fSgw25295 { 73*e7cbe64fSgw25295 (void) prom_close(fsih); 74*e7cbe64fSgw25295 return (0); 75*e7cbe64fSgw25295 } 76*e7cbe64fSgw25295 77*e7cbe64fSgw25295 /*ARGSUSED*/ 78*e7cbe64fSgw25295 static int 79*e7cbe64fSgw25295 promfs_open(char *filename, int flags) 80*e7cbe64fSgw25295 { 81*e7cbe64fSgw25295 return (prom_fopen(fsih, filename)); 82*e7cbe64fSgw25295 } 83*e7cbe64fSgw25295 84*e7cbe64fSgw25295 static int 85*e7cbe64fSgw25295 promfs_close(int fd) 86*e7cbe64fSgw25295 { 87*e7cbe64fSgw25295 prom_fclose(fsih, fd); 88*e7cbe64fSgw25295 return (0); 89*e7cbe64fSgw25295 } 90*e7cbe64fSgw25295 91*e7cbe64fSgw25295 static ssize_t 92*e7cbe64fSgw25295 promfs_read(int fd, caddr_t buf, size_t size) 93*e7cbe64fSgw25295 { 94*e7cbe64fSgw25295 return (prom_fread(fsih, fd, buf, size)); 95*e7cbe64fSgw25295 } 96*e7cbe64fSgw25295 97*e7cbe64fSgw25295 /*ARGSUSED*/ 98*e7cbe64fSgw25295 static off_t 99*e7cbe64fSgw25295 promfs_lseek(int fd, off_t offset, int whence) 100*e7cbe64fSgw25295 { 101*e7cbe64fSgw25295 return (prom_fseek(fsih, fd, offset)); 102*e7cbe64fSgw25295 } 103*e7cbe64fSgw25295 104*e7cbe64fSgw25295 static int 105*e7cbe64fSgw25295 promfs_fstat(int fd, struct bootstat *stp) 106*e7cbe64fSgw25295 { 107*e7cbe64fSgw25295 return (prom_fsize(fsih, fd, (size_t *)&stp->st_size)); 108*e7cbe64fSgw25295 } 109*e7cbe64fSgw25295 110*e7cbe64fSgw25295 /*ARGSUSED*/ 111*e7cbe64fSgw25295 static void 112*e7cbe64fSgw25295 promfs_closeall(int flag) 113*e7cbe64fSgw25295 { 114*e7cbe64fSgw25295 } 115