1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-NetBSD 3 * 4 * Copyright (c) 2006, Max Laier <mlaier@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/param.h> 33 #include <sys/kernel.h> 34 #include <sys/errno.h> 35 #include <sys/systm.h> 36 #include <sys/linker.h> 37 #include <sys/firmware.h> 38 #include <sys/proc.h> 39 #include <sys/module.h> 40 41 static const struct firmware *fp; 42 43 static int 44 fw_consumer_modevent(module_t mod, int type, void *unused) 45 { 46 switch (type) { 47 case MOD_LOAD: 48 fp = firmware_get("beastie"); 49 50 if (fp == NULL) 51 return (ENOENT); 52 53 if (((const char *)fp->data)[fp->datasize - 1] != '\0') { 54 firmware_put(fp, FIRMWARE_UNLOAD); 55 return (EINVAL); 56 } 57 printf("%s", (const char *)fp->data); 58 59 return (0); 60 case MOD_UNLOAD: 61 printf("Bye!\n"); 62 63 if (fp != NULL) { 64 printf("%s", (const char *)fp->data); 65 firmware_put(fp, FIRMWARE_UNLOAD); 66 } 67 68 return (0); 69 } 70 return (EINVAL); 71 } 72 73 static moduledata_t fw_consumer_mod = { 74 "fw_consumer", 75 fw_consumer_modevent, 76 0 77 }; 78 DECLARE_MODULE(fw_consumer, fw_consumer_mod, SI_SUB_DRIVERS, SI_ORDER_ANY); 79 MODULE_VERSION(fw_consumer, 1); 80 MODULE_DEPEND(fw_consumer, firmware, 1, 1, 1); 81