/*
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* Copyright 2015 Rockchip Electronics Co. LTD
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define MODULE_TAG "mpp_rt"
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#include <fcntl.h>
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#include <unistd.h>
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#include "mpp_env.h"
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#include "mpp_log.h"
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#include "mpp_common.h"
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#include "mpp_runtime.h"
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#define MAX_DTS_PATH_LEN 256
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static RK_U32 mpp_rt_debug = 0;
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static const char *mpp_dts_base = "/proc/device-tree/";
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static const char *mpp_vpu_names[] = {
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"vpu_service",
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"vpu-service",
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"vpu",
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//"hevc_service",
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//"hevc-service",
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//"rkvdec",
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//"rkvenc",
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//"vpu_combo",
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};
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#define mpp_rt_dbg(fmt, ...) do { if (mpp_rt_debug) mpp_log(fmt, ## __VA_ARGS__); } while (0)
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static const char *mpp_vpu_address[] = {
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"", /* old kernel */
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"@10108000", /* rk3036 */
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"@20020000", /* rk322x */
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"@30000000", /* rv1108 */
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"@ff9a0000", /* rk3288/3366 */
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"@ff350000", /* rk322xh/3328 */
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"@ff650000", /* rk3399 */
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};
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class MppRuntimeService
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{
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private:
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// avoid any unwanted function
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MppRuntimeService();
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~MppRuntimeService() {};
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MppRuntimeService(const MppRuntimeService &);
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MppRuntimeService &operator=(const MppRuntimeService &);
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RK_U32 allocator_valid[MPP_BUFFER_TYPE_BUTT];
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public:
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static MppRuntimeService *get_instance() {
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static MppRuntimeService instance;
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return &instance;
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}
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RK_U32 get_allocator_valid(MppBufferType type);
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};
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RK_U32 MppRuntimeService::get_allocator_valid(MppBufferType type)
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{
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MppBufferType buffer_type = (MppBufferType)(type & MPP_BUFFER_TYPE_MASK);
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return (buffer_type < MPP_BUFFER_TYPE_BUTT) ? allocator_valid[buffer_type] : (0);
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};
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MppRuntimeService::MppRuntimeService()
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{
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mpp_env_get_u32("mpp_rt_debug", &mpp_rt_debug, 0);
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allocator_valid[MPP_BUFFER_TYPE_NORMAL] = 1;
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allocator_valid[MPP_BUFFER_TYPE_ION] = !access("/dev/ion", F_OK | R_OK | W_OK);
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allocator_valid[MPP_BUFFER_TYPE_DRM] = !access("/dev/dri/card0", F_OK | R_OK | W_OK);
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if (!allocator_valid[MPP_BUFFER_TYPE_ION] && !allocator_valid[MPP_BUFFER_TYPE_DRM]) {
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mpp_err("can NOT found any allocator\n");
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return;
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}
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if (allocator_valid[MPP_BUFFER_TYPE_ION] && !allocator_valid[MPP_BUFFER_TYPE_DRM]) {
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mpp_rt_dbg("use ion allocator\n");
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return;
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}
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if (!allocator_valid[MPP_BUFFER_TYPE_ION] && allocator_valid[MPP_BUFFER_TYPE_DRM]) {
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mpp_rt_dbg("use drm allocator\n");
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return;
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}
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if (!access("/dev/mpp_service", F_OK | R_OK | W_OK)) {
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allocator_valid[MPP_BUFFER_TYPE_ION] = 0;
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mpp_rt_dbg("use drm allocator for mpp_service\n");
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return;
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}
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// If both ion and drm is enabled detect allocator in dts to choose one
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// TODO: When unify dma fd kernel is completed this part will be removed.
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if (allocator_valid[MPP_BUFFER_TYPE_ION] &&
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allocator_valid[MPP_BUFFER_TYPE_DRM]) {
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/* Detect hardware buffer type is ion or drm */
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RK_U32 i, j;
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char path[MAX_DTS_PATH_LEN];
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RK_U32 path_len = MAX_DTS_PATH_LEN - 1;
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RK_U32 dts_path_len = snprintf(path, path_len, "%s", mpp_dts_base);
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char *p = path + dts_path_len;
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RK_U32 allocator_found = 0;
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path_len -= dts_path_len;
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for (i = 0; i < MPP_ARRAY_ELEMS(mpp_vpu_names); i++) {
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for (j = 0; j < MPP_ARRAY_ELEMS(mpp_vpu_address); j++) {
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RK_U32 dev_path_len = snprintf(p, path_len, "%s%s",
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mpp_vpu_names[i], mpp_vpu_address[j]);
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int f_ok = access(path, F_OK);
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if (f_ok == 0) {
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snprintf(p + dev_path_len, path_len - dev_path_len, "/%s", "allocator");
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f_ok = access(path, F_OK);
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if (f_ok == 0) {
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RK_S32 val = 0;
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FILE *fp = fopen(path, "rb");
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if (fp) {
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size_t len = fread(&val, 1, 4, fp);
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// zero for ion non-zero for drm ->
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// zero - disable drm
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// non-zero - disable ion
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if (len != 4) {
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mpp_err("failed to read dts allocator value default 0\n");
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val = 0;
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}
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if (val == 0) {
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allocator_valid[MPP_BUFFER_TYPE_DRM] = 0;
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mpp_rt_dbg("found ion allocator in dts\n");
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} else {
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allocator_valid[MPP_BUFFER_TYPE_ION] = 0;
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mpp_rt_dbg("found drm allocator in dts\n");
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}
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allocator_found = 1;
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}
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}
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}
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if (allocator_found)
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break;
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}
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if (allocator_found)
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break;
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}
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if (!allocator_found)
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mpp_log("Can NOT found allocator in dts, enable both ion and drm\n");
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}
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}
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RK_U32 mpp_rt_allcator_is_valid(MppBufferType type)
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{
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return MppRuntimeService::get_instance()->get_allocator_valid(type);
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}
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