1 /*
2 * Copyright (C) 2013 The Android Open Source Project
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 #include <errno.h>
18 #include <stdlib.h>
19 #include <utils/Log.h>
20
21 #include <hardware/memtrack.h>
22 #include "memtrack_msm.h"
23
msm_memtrack_init(const struct memtrack_module * module)24 int msm_memtrack_init(const struct memtrack_module *module)
25 {
26 if(!module)
27 return -1;
28 return 0;
29 }
30
msm_memtrack_get_memory(const struct memtrack_module * module,pid_t pid,int type,struct memtrack_record * records,size_t * num_records)31 int msm_memtrack_get_memory(const struct memtrack_module *module,
32 pid_t pid,
33 int type,
34 struct memtrack_record *records,
35 size_t *num_records)
36 {
37 if(!module)
38 return -1;
39 if (type == MEMTRACK_TYPE_GL || type == MEMTRACK_TYPE_GRAPHICS) {
40 return kgsl_memtrack_get_memory(pid, type, records, num_records);
41 }
42
43 return -EINVAL;
44 }
45
memtrack_open(const hw_module_t * module,const char * name,hw_device_t ** device)46 static int memtrack_open(const hw_module_t* module, const char* name,
47 hw_device_t** device)
48 {
49 ALOGD("%s: enter; name=%s", __FUNCTION__, name);
50 int retval = 0; /* 0 is ok; -1 is error */
51
52 if (strcmp(name, "memtrack") == 0) {
53 struct memtrack_module *dev = (struct memtrack_module *)calloc(1,
54 sizeof(struct memtrack_module));
55
56 if (dev) {
57 /* Common hw_device_t fields */
58 dev->common.tag = HARDWARE_DEVICE_TAG;
59 dev->common.module_api_version = MEMTRACK_MODULE_API_VERSION_0_1;
60 dev->common.module_api_version = HARDWARE_HAL_API_VERSION;
61
62 dev->init = msm_memtrack_init;
63 dev->getMemory = msm_memtrack_get_memory;
64
65 *device = (hw_device_t*)dev;
66 } else
67 retval = -ENOMEM;
68 } else {
69 retval = -EINVAL;
70 }
71
72 ALOGD("%s: exit %d", __FUNCTION__, retval);
73 return retval;
74 }
75
76 static struct hw_module_methods_t memtrack_module_methods = {
77 .open = memtrack_open,
78 };
79
80 struct memtrack_module HAL_MODULE_INFO_SYM = {
81 common: {
82 tag: HARDWARE_MODULE_TAG,
83 module_api_version: MEMTRACK_MODULE_API_VERSION_0_1,
84 hal_api_version: HARDWARE_HAL_API_VERSION,
85 id: MEMTRACK_HARDWARE_MODULE_ID,
86 name: "MSM Memory Tracker HAL",
87 author: "The Android Open Source Project",
88 methods: &memtrack_module_methods,
89 },
90
91 init: msm_memtrack_init,
92 getMemory: msm_memtrack_get_memory,
93 };
94
95