feat[kmpp]: Add kmpp module

Change-Id: Ia9c414edf625885fd551ad14f72dd1f7bc34172d
Signed-off-by: Yandong Lin <yandong.lin@rock-chips.com>

osal/driver/mpp_vcodec_client.c

@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
+/*
+ * Copyright (c) 2024 Rockchip Electronics Co., Ltd.
+ */
+
+#define MODULE_TAG "mpp_vcodec"
+
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+
+#include "mpp_log.h"
+#include "mpp_env.h"
+#include "mpp_common.h"
+#include "mpp_vcodec_client.h"
+
+#define VOCDEC_IOC_MAGIC            'V'
+#define VOCDEC_IOC_CFG              _IOW(VOCDEC_IOC_MAGIC, 1, unsigned int)
+
+typedef struct vcodec_req_t {
+    RK_U32 cmd;
+    RK_U32 ctrl_cmd;
+    RK_U32 size;
+    RK_U64 data;
+} vcodec_req;
+
+#if __SIZEOF_POINTER__ == 4
+#define REQ_DATA_PTR(ptr) ((RK_U32)ptr)
+#elif __SIZEOF_POINTER__ == 8
+#define REQ_DATA_PTR(ptr) ((RK_U64)ptr)
+#endif
+
+RK_S32 mpp_vcodec_open(void)
+{
+    RK_S32 fd = -1;
+
+    fd = open("/dev/vcodec", O_RDWR | O_CLOEXEC);
+    if (fd < 0) {
+        mpp_err("open /dev/vcodec failed errno %d %s\n", errno, strerror(errno));
+        return -1;
+    }
+
+    return fd;
+}
+
+MPP_RET mpp_vcodec_ioctl(RK_S32 fd, RK_U32 cmd, RK_U32 ctrl_cmd, RK_U32 size, void *param)
+{
+    vcodec_req req;
+    RK_S32 ret = 0;
+
+    memset(&req, 0, sizeof(req));
+    req.cmd = cmd;
+    req.ctrl_cmd = ctrl_cmd;
+    req.size = size;
+    req.data = REQ_DATA_PTR(param);
+
+    ret = (RK_S32)ioctl(fd, VOCDEC_IOC_CFG, &req);
+    if (ret) {
+        mpp_err("ioctl fd %d failed ret %d errno %d %s\n",
+                fd, ret, errno, strerror(errno));
+        return MPP_NOK;
+    }
+
+    return MPP_OK;
+}
+
+MPP_RET mpp_vcodec_close(RK_S32 fd)
+{
+    if (fd)
+        close(fd);
+
+    return MPP_OK;
+}