1 /* 2 * QEMU M48T59 and M48T08 NVRAM emulation 3 * 4 * Copyright (c) 2003-2005, 2007 Jocelyn Mayer 5 * Copyright (c) 2013 Hervé Poussineau 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 26 #ifndef HW_RTC_M48T59_H 27 #define HW_RTC_M48T59_H 28 29 #include "exec/hwaddr.h" 30 #include "qom/object.h" 31 32 #define TYPE_NVRAM "nvram" 33 34 typedef struct NvramClass NvramClass; 35 DECLARE_CLASS_CHECKERS(NvramClass, NVRAM, 36 TYPE_NVRAM) 37 #define NVRAM(obj) \ 38 INTERFACE_CHECK(Nvram, (obj), TYPE_NVRAM) 39 40 typedef struct Nvram Nvram; 41 42 struct NvramClass { 43 InterfaceClass parent; 44 45 uint32_t (*read)(Nvram *obj, uint32_t addr); 46 void (*write)(Nvram *obj, uint32_t addr, uint32_t val); 47 void (*toggle_lock)(Nvram *obj, int lock); 48 }; 49 50 #endif /* HW_RTC_M48T59_H */ 51