1 /* 2 * Copyright (C) 2014 Amlogic Corporation. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef IONMEM_H 18 #define IONMEM_H 19 #include <ion/ion.h> 20 #if defined (__cplusplus) 21 extern "C" { 22 #endif 23 24 #define ION_IOC_MESON_PHYS_ADDR 8 25 26 27 struct meson_phys_data{ 28 int handle; 29 unsigned int phys_addr; 30 unsigned int size; 31 }; 32 33 typedef struct IONMEM_AllocParams { 34 int mIonHnd; 35 size_t size; 36 unsigned char *vaddr; 37 size_t map_len; 38 } IONMEM_AllocParams; 39 40 41 #define ION_IOC_MAGIC 'I' 42 43 #define ION_IOC_CUSTOM _IOWR(ION_IOC_MAGIC, 6, struct ion_custom_data) 44 45 #ifdef __DEBUG 46 #define __D(fmt, args...) fprintf(stderr, "CMEM Debug: " fmt, ## args) 47 #else 48 #define __D(fmt, args...) 49 #endif 50 51 #define __E(fmt, args...) fprintf(stderr, "CMEM Error: " fmt, ## args) 52 53 54 int CMEM_init(void); 55 unsigned long CMEM_alloc(size_t size, IONMEM_AllocParams *params); 56 int CMEM_getPhyPtr(IONMEM_AllocParams *params, unsigned long *PhyAdrr); 57 /*void* CMEM_getUsrPtr(unsigned long PhyAdr, int size);*/ 58 int CMEM_free(IONMEM_AllocParams *params); 59 int CMEM_exit(void); 60 61 #if defined (__cplusplus) 62 } 63 #endif 64 65 #endif 66 67