////////////////////////////////////////////////////
// 功能:
// 输入:
// 输出:
// 返回:
// 说明:
////////////////////////////////////////////////////
int DacClose(HANDLE hdac)
{
PDAC_DEVICE dac;
kMutexWait(hDacMutex);
dac = (PDAC_DEVICE)hdac;
kdebug(mod_audio, PRINT_INFO, "dac error data number = %d\n",nErrorData);
if(dac)
{
ListRemove(&dac->Link);
if(ListEmpty(&DacList))
{
//MillinsecoundDelay(20);
SetMuteMode(0);
//关闭功放
SetPowerAmplifier(0);
//MillinsecoundDelay(20);
SetMoseCe(0);
// 关闭耳机设备
DacHeadphoneClose();
// 关闭DA设备
DacDeviceClose();
// 没有这个耳机会有爆破音.
//MillinsecoundDelay(20);
}
DacDestorySamplerate(dac); //释放resample数据
DacDestoryWsola(hdac); //释放wsola数据
#ifdef DAC_SAVE_PCM
{
HANDLE fp;
fp = kfopen("d:\\pcm.bin","w+b");
kfwrite(dac_buf,1,dac_offset,fp);
kfclose(fp);
fp = kfopen("d:\\source.bin","w+b");
kfwrite(dac_source_buf,1,dac_source_offset,fp);
kfclose(fp);
}
#endif
kfree(dac);
kMutexRelease(hDacMutex);
return 0;
}
nErrorData = 0;
kMutexRelease(hDacMutex);
return -1;
}
int
fwrite_nvlist(char *filename, nvlist_t *nvl)
{
char *buf;
char *nvbuf;
kfile_t *fp;
char *newname;
int len, err, err1;
size_t buflen;
ssize_t n;
ASSERT(modrootloaded);
nvbuf = NULL;
err = nvlist_pack(nvl, &nvbuf, &buflen, NV_ENCODE_NATIVE, 0);
if (err != 0) {
KFIOERR((CE_CONT, "%s: error %d packing nvlist\n",
filename, err));
return (err);
}
buf = kmem_alloc(sizeof (nvpf_hdr_t) + buflen, KM_SLEEP);
bzero(buf, sizeof (nvpf_hdr_t));
((nvpf_hdr_t *)buf)->nvpf_magic = NVPF_HDR_MAGIC;
((nvpf_hdr_t *)buf)->nvpf_version = NVPF_HDR_VERSION;
((nvpf_hdr_t *)buf)->nvpf_size = buflen;
((nvpf_hdr_t *)buf)->nvpf_chksum = nvp_cksum((uchar_t *)nvbuf, buflen);
((nvpf_hdr_t *)buf)->nvpf_hdr_chksum =
nvp_cksum((uchar_t *)buf, sizeof (nvpf_hdr_t));
bcopy(nvbuf, buf + sizeof (nvpf_hdr_t), buflen);
kmem_free(nvbuf, buflen);
buflen += sizeof (nvpf_hdr_t);
len = strlen(filename) + MAX_SUFFIX_LEN + 2;
newname = kmem_alloc(len, KM_SLEEP);
(void) sprintf(newname, "%s.%s",
filename, NEW_FILENAME_SUFFIX);
/*
* To make it unlikely we suffer data loss, write
* data to the new temporary file. Once successful
* complete the transaction by renaming the new file
* to replace the previous.
*/
if ((err = kfcreate(newname, &fp)) == 0) {
err = kfwrite(fp, buf, buflen, &n);
if (err) {
KFIOERR((CE_CONT, "%s: write error - %d\n",
newname, err));
} else {
if (n != buflen) {
KFIOERR((CE_CONT,
"%s: partial write %ld of %ld bytes\n",
newname, n, buflen));
KFIOERR((CE_CONT,
"%s: filesystem may be full?\n", newname));
err = EIO;
}
}
if ((err1 = kfclose(fp)) != 0) {
KFIOERR((CE_CONT, "%s: close error\n", newname));
if (err == 0)
err = err1;
}
if (err != 0) {
if (kfremove(newname) != 0) {
KFIOERR((CE_CONT, "%s: remove failed\n",
newname));
}
}
} else {
KFIOERR((CE_CONT, "%s: create failed - %d\n",
filename, err));
}
if (err == 0) {
if ((err = kfrename(newname, filename)) != 0) {
KFIOERR((CE_CONT, "%s: rename from %s failed\n",
newname, filename));
}
}
kmem_free(newname, len);
kmem_free(buf, buflen);
return (err);
}