| Dima Zavin | a404bce | 2009-01-26 12:32:22 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2009, Google Inc. |
| 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 | * * Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * * Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in |
| 12 | * the documentation and/or other materials provided with the |
| 13 | * distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 16 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 17 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 18 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 19 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 21 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 22 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 23 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 24 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 25 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 26 | * SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #ifndef __PLATFORM_MSM_SHARED_SMEM_H |
| 30 | #define __PLATFORM_MSM_SHARED_SMEM_H |
| 31 | |
| 32 | #include <sys/types.h> |
| 33 | |
| 34 | struct smem_proc_comm |
| 35 | { |
| 36 | unsigned command; |
| 37 | unsigned status; |
| 38 | unsigned data1; |
| 39 | unsigned data2; |
| 40 | }; |
| 41 | |
| 42 | struct smem_heap_info |
| 43 | { |
| 44 | unsigned initialized; |
| 45 | unsigned free_offset; |
| 46 | unsigned heap_remaining; |
| 47 | unsigned reserved; |
| 48 | }; |
| 49 | |
| 50 | struct smem_alloc_info |
| 51 | { |
| 52 | unsigned allocated; |
| 53 | unsigned offset; |
| 54 | unsigned size; |
| 55 | unsigned reserved; |
| 56 | }; |
| 57 | |
| 58 | struct smem { |
| 59 | struct smem_proc_comm proc_comm[4]; |
| 60 | unsigned version_info[32]; |
| 61 | struct smem_heap_info heap_info; |
| 62 | struct smem_alloc_info alloc_info[128]; |
| 63 | }; |
| 64 | |
| 65 | typedef enum { |
| 66 | SMEM_SPINLOCK_ARRAY = 7, |
| 67 | |
| 68 | SMEM_AARM_PARTITION_TABLE = 9, |
| 69 | |
| 70 | SMEM_FIRST_VALID_TYPE = SMEM_SPINLOCK_ARRAY, |
| 71 | SMEM_LAST_VALID_TYPE = SMEM_AARM_PARTITION_TABLE, |
| 72 | } smem_mem_type_t; |
| 73 | |
| 74 | /* Note: buf MUST be 4byte aligned, and max_len MUST be a multiple of 4. */ |
| 75 | unsigned smem_read_alloc_entry(smem_mem_type_t type, void *buf, int max_len); |
| 76 | |
| 77 | #endif /* __PLATFORM_MSM_SHARED_SMEM_H */ |