openharmony/drivers_adapter_khdf_linux
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403行函数拆分

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Signed-off-by: yinshuqing <yinshuqing@huawei.com>
This commit is contained in:
yinshuqing 2021-09-16 16:26:14 +08:00
parent c9e629afaf
commit 368a3aa880
1 changed files with 44 additions and 28 deletions
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72
platform/mipi_dsi/mipi_tx_dev.c
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@ -400,6 +400,46 @@ int32_t MipiDsiDevSetCmd(struct MipiDsiCntlr *cntlr, struct DsiCmdDesc *arg)
return ret;
}
int32_t MipiDsiDevCmdCopyFromUser(GetDsiCmdDescTag *arg, GetDsiCmdDescTag *temp, uint32_t *size)
{
if (access_ok(
#if LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0)
VERIFY_READ,
#endif
arg, *size)) { /* user space */
if (CopyFromUser(temp, arg, *size) != 0) {
HDF_LOGE("%s: [CopyFromUser] failed.", __func__);
return HDF_FAILURE;
}
} else { /* kernel space */
if (memcpy_s(temp, *size, arg, *size) != EOK) {
HDF_LOGE("%s: [memcpy_s] failed.", __func__);
return HDF_FAILURE;
}
}
return HDF_SUCCESS;
}
int32_t MipiDsiDevCmdCopyToUser(GetDsiCmdDescTag *arg, GetDsiCmdDescTag *temp, uint32_t *size)
{
if (access_ok(
#if LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0)
VERIFY_WRITE,
#endif
arg, *size)) { /* user space */
if (CopyToUser(arg, temp, *size) != 0) {
HDF_LOGE("%s: [CopyToUser] failed.", __func__);
return HDF_FAILURE;
}
} else { /* kernel space */
if (memcpy_s(arg, *size, temp, *size) != EOK) {
HDF_LOGE("%s: [memcpy_s] failed.", __func__);
return HDF_FAILURE;
}
}
return HDF_SUCCESS;
}
int32_t MipiDsiDevGetCmd(struct MipiDsiCntlr *cntlr, GetDsiCmdDescTag *arg)
{
int32_t ret;
@ -415,40 +455,16 @@ int32_t MipiDsiDevGetCmd(struct MipiDsiCntlr *cntlr, GetDsiCmdDescTag *arg)
HDF_LOGE("%s: [OsalMemCalloc] error.", __func__);
return HDF_ERR_MALLOC_FAIL;
}
if (access_ok(
#if LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0)
VERIFY_READ,
#endif
arg, size)) { /* user space */
if (CopyFromUser(temp, arg, size) != 0) {
HDF_LOGE("%s: [CopyFromUser] failed.", __func__);
goto fail0;
}
} else { /* kernel space */
if (memcpy_s(temp, size, arg, size) != EOK) {
HDF_LOGE("%s: [memcpy_s] failed.", __func__);
goto fail0;
}
if (MipiDsiDevCmdCopyFromUser(arg, temp, &size) != HDF_SUCCESS) {
goto fail0;
}
ret = MipiDsiCntlrRx(cntlr, &temp->readCmd, temp->readLen, temp->out);
if (ret != HDF_SUCCESS) {
HDF_LOGE("%s: [MipiDsiCntlrRx] failed.", __func__);
goto fail0;
}
if (access_ok(
#if LINUX_VERSION_CODE < KERNEL_VERSION(5,6,0)
VERIFY_WRITE,
#endif
arg, size)) { /* user space */
if (CopyToUser(arg, temp, size) != 0) {
HDF_LOGE("%s: [CopyToUser] failed.", __func__);
goto fail0;
}
} else { /* kernel space */
if (memcpy_s(arg, size, temp, size) != EOK) {
HDF_LOGE("%s: [memcpy_s] failed.", __func__);
goto fail0;
}
if (MipiDsiDevCmdCopyToUser(arg, temp, &size) != HDF_SUCCESS) {
goto fail0;
}
OsalMemFree(temp);
temp = NULL;