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