1 /* $FreeBSD: releng/12.2/stand/kshim/bsd_kernel.c 314068 2017-02-22 02:35:59Z pfg $ */ 2 /*- 3 * Copyright (c) 2013 Hans Petter Selasky. 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, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include "implementation/global_implementation.h" 28 29 #ifdef LOSCFG_DRIVERS_USB_HOST_DRIVER 30 extern volatile uint8_t g_device_is_ready; 31 #endif 32 33 #undef USB_DEBUG_VAR 34 #define USB_DEBUG_VAR usb_debug 35 36 /*------------------------------------------------------------------------* 37 * Implementation of mutex API 38 *------------------------------------------------------------------------*/ 39 40 struct mtx Giant = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP; 41 struct mtx Gcall = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP; 42 43 /*------------------------------------------------------------------------* 44 * Implementation of device API 45 *------------------------------------------------------------------------*/ 46 47 #ifdef LOSCFG_USB_DEBUG 48 static uint8_t 49 devclass_equal(const char *a, const char *b) 50 { 51 char ta, tb; 52 53 if (a == b) 54 return (1); 55 if(!a || !b) 56 return (0); 57 while (1) { 58 ta = *a; 59 tb = *b; 60 if (ta != tb) 61 return (0); 62 if (ta == 0) 63 break; 64 a++; 65 b++; 66 } 67 return (1); 68 } 69 70 static TAILQ_HEAD(, debug_module_data) debug_module_head = 71 TAILQ_HEAD_INITIALIZER(debug_module_head); 72 73 void 74 debug_module_register(void *data) 75 { 76 struct debug_module_data *mdata = data; 77 TAILQ_INSERT_TAIL(&debug_module_head, mdata, entry); 78 } 79 80 void 81 debug_module_unregister(void *data) 82 { 83 struct debug_module_data *mdata = data; 84 TAILQ_REMOVE(&debug_module_head, mdata, entry); 85 } 86 87 struct debug_module_data * 88 get_debug_module(const char *modname) 89 { 90 static struct debug_module_data *mod; 91 92 TAILQ_FOREACH(mod, &debug_module_head, entry) { 93 if (devclass_equal(mod->mod_name, modname)) { 94 return (mod); 95 } 96 } 97 return (NULL); 98 } 99 100 void 101 debug_module_dump(void) 102 { 103 const struct debug_module_data *mod; 104 105 TAILQ_FOREACH(mod, &debug_module_head, entry) { 106 PRINTK("%s\n", mod->mod_name); 107 } 108 } 109 #endif 110 #undef USB_DEBUG_VAR 111