1/*
2 * Copyright (C) 2015 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#define LOG_TAG "hardware_cal"
18/*#define LOG_NDEBUG 0*/
19#define LOG_NDDEBUG 0
20
21#ifdef HWDEP_CAL_ENABLED
22
23#include <stdlib.h>
24#include <dlfcn.h>
25#include <fcntl.h>
26#include <sys/ioctl.h>
27#include <unistd.h>
28#include <log/log.h>
29#include <audio_hw.h>
30#include "audio_extn.h"
31#include "sound/msmcal-hwdep.h"
32
33#define SOUND_TRIGGER_DEVICE_HANDSET_MONO_LOW_POWER_ACDB_ID (100)
34#define MAX_CAL_NAME 20
35
36typedef struct acdb_audio_cal_cfg {
37    uint32_t             persist;
38    uint32_t             snd_dev_id;
39    audio_devices_t      dev_id;
40    int32_t              acdb_dev_id;
41    uint32_t             app_type;
42    uint32_t             topo_id;
43    uint32_t             sampling_rate;
44    uint32_t             cal_type;
45    uint32_t             module_id;
46    uint32_t             param_id;
47} acdb_audio_cal_cfg_t;
48
49struct param_data {
50    int    use_case;
51    int    acdb_id;
52    int    get_size;
53    int    buff_size;
54    int    data_size;
55    void   *buff;
56};
57
58char cal_name_info[WCD9XXX_MAX_CAL][MAX_CAL_NAME] = {
59        [WCD9XXX_ANC_CAL] = "anc_cal",
60        [WCD9XXX_MBHC_CAL] = "mbhc_cal",
61        [WCD9XXX_MAD_CAL] = "mad_cal",
62};
63
64typedef int (*acdb_get_calibration_t)(char *attr, int size, void *data);
65acdb_get_calibration_t     acdb_get_calibration;
66
67static int hw_util_open(int card_no)
68{
69    int fd = -1;
70    char dev_name[256];
71
72    snprintf(dev_name, sizeof(dev_name), "/dev/snd/hwC%uD%u",
73                               card_no, WCD9XXX_CODEC_HWDEP_NODE);
74    ALOGD("%s: Opening device %s\n", __func__, dev_name);
75    fd = open(dev_name, O_WRONLY);
76    if (fd < 0) {
77        ALOGE("%s: cannot open device '%s'\n", __func__, dev_name);
78        return fd;
79    }
80    ALOGD("%s: success", __func__);
81    return fd;
82}
83
84static int send_codec_cal(acdb_get_calibration_t acdb_loader_get_calibration, int fd)
85{
86    int ret = 0, type;
87
88    for (type = WCD9XXX_ANC_CAL; type < WCD9XXX_MAX_CAL; type++) {
89        struct wcdcal_ioctl_buffer codec_buffer;
90        struct param_data calib;
91
92        if (!strcmp(cal_name_info[type], "mad_cal"))
93            calib.acdb_id = SOUND_TRIGGER_DEVICE_HANDSET_MONO_LOW_POWER_ACDB_ID;
94        calib.get_size = 1;
95        ret = acdb_loader_get_calibration(cal_name_info[type], sizeof(struct param_data),
96                                                                 &calib);
97        if (ret < 0) {
98            ALOGE("%s get_calibration failed\n", __func__);
99            return ret;
100        }
101        calib.get_size = 0;
102        calib.buff = malloc(calib.buff_size);
103        ret = acdb_loader_get_calibration(cal_name_info[type],
104                              sizeof(struct param_data), &calib);
105        if (ret < 0) {
106            ALOGE("%s get_calibration failed\n", __func__);
107            free(calib.buff);
108            return ret;
109        }
110        codec_buffer.buffer = calib.buff;
111        codec_buffer.size = calib.data_size;
112        codec_buffer.cal_type = type;
113        if (ioctl(fd, SNDRV_CTL_IOCTL_HWDEP_CAL_TYPE, &codec_buffer) < 0)
114            ALOGE("Failed to call ioctl  for %s err=%d",
115                                  cal_name_info[type], errno);
116        ALOGD("%s cal sent for %s", __func__, cal_name_info[type]);
117        free(calib.buff);
118    }
119    return ret;
120}
121
122
123void audio_extn_hwdep_cal_send(int snd_card, void *acdb_handle)
124{
125    int fd;
126
127    fd = hw_util_open(snd_card);
128    if (fd == -1) {
129        ALOGE("%s error open\n", __func__);
130        return;
131    }
132
133    acdb_get_calibration = (acdb_get_calibration_t)
134          dlsym(acdb_handle, "acdb_loader_get_calibration");
135
136    if (acdb_get_calibration == NULL) {
137        ALOGE("%s: ERROR. dlsym Error:%s acdb_loader_get_calibration", __func__,
138           dlerror());
139        return;
140    }
141    if (send_codec_cal(acdb_get_calibration, fd) < 0)
142        ALOGE("%s: Could not send anc cal", __FUNCTION__);
143
144    close(fd);
145}
146
147#endif
148