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Add DAC user mode interface

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Signed-off-by: zhangyalei <zhangyalei7@huawei.com>
This commit is contained in:
zhangyalei
2022-01-29 19:34:07 -08:00
parent 74a2fb79de
commit 6c53b4ec10
1 changed files with 18 additions and 4 deletions
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support/platform/src/dac/dac_if_u.c
+18 -4
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@@ -39,9 +39,11 @@ DevHandle DacOpen(uint32_t number)
uint32_t handle;
service = DacManagerServiceGet();
if (service == NULL) {
if (service == NULL || service->dispatcher == NULL || service->dispatcher->Dispatch == NULL) {
HDF_LOGE("%s: service is invalid", __func__);
return NULL;
}
data = HdfSbufObtainDefaultSize();
if (data == NULL) {
HDF_LOGE("DacOpen: malloc data failed!");
@@ -86,8 +88,14 @@ void DacClose(DevHandle handle)
struct HdfIoService *service = NULL;
struct HdfSBuf *data = NULL;
if (handle == NULL) {
HDF_LOGE("%s: handle is invalid", __func__);
return;
}
service = (struct HdfIoService *)DacManagerServiceGet();
if (service == NULL) {
if (service == NULL || service->dispatcher == NULL || service->dispatcher->Dispatch == NULL) {
HDF_LOGE("%s: service is invalid", __func__);
return;
}
@@ -115,9 +123,15 @@ int32_t DacWrite(DevHandle handle, uint32_t channel, uint32_t val)
struct HdfIoService *service = NULL;
struct HdfSBuf *data = NULL;
if (handle == NULL) {
HDF_LOGE("%s: handle is invalid", __func__);
return HDF_FAILURE;
}
service = (struct HdfIoService *)DacManagerServiceGet();
if (service == NULL) {
return HDF_PLT_ERR_DEV_GET;
if (service == NULL || service->dispatcher == NULL || service->dispatcher->Dispatch == NULL) {
HDF_LOGE("%s: service is invalid", __func__);
return HDF_ERR_INVALID_PARAM;
}
data = HdfSbufObtainDefaultSize();