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/*
* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
* Copyright (C) 2017 Linaro Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/completion.h>
#include <linux/platform_device.h>
#include <linux/videodev2.h>
#include "core.h"
#include "hfi.h"
#include "hfi_cmds.h"
#include "hfi_venus.h"
#define TIMEOUT msecs_to_jiffies(1000)
static u32 to_codec_type(u32 pixfmt)
{
switch (pixfmt) {
case V4L2_PIX_FMT_H264:
case V4L2_PIX_FMT_H264_NO_SC:
return HFI_VIDEO_CODEC_H264;
case V4L2_PIX_FMT_H263:
return HFI_VIDEO_CODEC_H263;
case V4L2_PIX_FMT_MPEG1:
return HFI_VIDEO_CODEC_MPEG1;
case V4L2_PIX_FMT_MPEG2:
return HFI_VIDEO_CODEC_MPEG2;
case V4L2_PIX_FMT_MPEG4:
return HFI_VIDEO_CODEC_MPEG4;
case V4L2_PIX_FMT_VC1_ANNEX_G:
case V4L2_PIX_FMT_VC1_ANNEX_L:
return HFI_VIDEO_CODEC_VC1;
case V4L2_PIX_FMT_VP8:
return HFI_VIDEO_CODEC_VP8;
case V4L2_PIX_FMT_VP9:
return HFI_VIDEO_CODEC_VP9;
case V4L2_PIX_FMT_XVID:
return HFI_VIDEO_CODEC_DIVX;
case V4L2_PIX_FMT_HEVC:
return HFI_VIDEO_CODEC_HEVC;
default:
return 0;
}
}
int hfi_core_init(struct venus_core *core)
{
int ret = 0;
mutex_lock(&core->lock);
if (core->state >= CORE_INIT)
goto unlock;
reinit_completion(&core->done);
ret = core->ops->core_init(core);
if (ret)
goto unlock;
ret = wait_for_completion_timeout(&core->done, TIMEOUT);
if (!ret) {
ret = -ETIMEDOUT;
goto unlock;
}
ret = 0;
if (core->error != HFI_ERR_NONE) {
ret = -EIO;
goto unlock;
}
core->state = CORE_INIT;
unlock:
mutex_unlock(&core->lock);
return ret;
}
int hfi_core_deinit(struct venus_core *core, bool blocking)
{
int ret = 0, empty;
mutex_lock(&core->lock);
if (core->state == CORE_UNINIT)
goto unlock;
empty = list_empty(&core->instances);
if (!empty && !blocking) {
ret = -EBUSY;
goto unlock;
}
if (!empty) {
mutex_unlock(&core->lock);
wait_var_event(&core->insts_count,
!atomic_read(&core->insts_count));
mutex_lock(&core->lock);
}
ret = core->ops->core_deinit(core);
if (!ret)
core->state = CORE_UNINIT;
unlock:
mutex_unlock(&core->lock);
return ret;
}
int hfi_core_suspend(struct venus_core *core)
{
if (core->state != CORE_INIT)
return 0;
return core->ops->suspend(core);
}
int hfi_core_resume(struct venus_core *core, bool force)
{
if (!force && core->state != CORE_INIT)
return 0;
return core->ops->resume(core);
}
int hfi_core_trigger_ssr(struct venus_core *core, u32 type)
{
return core->ops->core_trigger_ssr(core, type);
}
int hfi_core_ping(struct venus_core *core)
{
int ret;
mutex_lock(&core->lock);
ret = core->ops->core_ping(core, 0xbeef);
if (ret)
goto unlock;
ret = wait_for_completion_timeout(&core->done, TIMEOUT);
if (!ret) {
ret = -ETIMEDOUT;
goto unlock;
}
ret = 0;
if (core->error != HFI_ERR_NONE)
ret = -ENODEV;
unlock:
mutex_unlock(&core->lock);
return ret;
}
static int wait_session_msg(struct venus_inst *inst)
{
int ret;
ret = wait_for_completion_timeout(&inst->done, TIMEOUT);
if (!ret)
return -ETIMEDOUT;
if (inst->error != HFI_ERR_NONE)
return -EIO;
return 0;
}
int hfi_session_create(struct venus_inst *inst, const struct hfi_inst_ops *ops)
{
struct venus_core *core = inst->core;
if (!ops)
return -EINVAL;
inst->state = INST_UNINIT;
init_completion(&inst->done);
inst->ops = ops;
mutex_lock(&core->lock);
list_add_tail(&inst->list, &core->instances);
atomic_inc(&core->insts_count);
mutex_unlock(&core->lock);
return 0;
}
EXPORT_SYMBOL_GPL(hfi_session_create);
int hfi_session_init(struct venus_inst *inst, u32 pixfmt)
{
struct venus_core *core = inst->core;
const struct hfi_ops *ops = core->ops;
int ret;
inst->hfi_codec = to_codec_type(pixfmt);
reinit_completion(&inst->done);
ret = ops->session_init(inst, inst->session_type, inst->hfi_codec);
if (ret)
return ret;
ret = wait_session_msg(inst);
if (ret)
return ret;
inst->state = INST_INIT;
return 0;
}
EXPORT_SYMBOL_GPL(hfi_session_init);
void hfi_session_destroy(struct venus_inst *inst)
{
struct venus_core *core = inst->core;
mutex_lock(&core->lock);
list_del_init(&inst->list);
if (atomic_dec_and_test(&core->insts_count))
wake_up_var(&core->insts_count);
mutex_unlock(&core->lock);
}
EXPORT_SYMBOL_GPL(hfi_session_destroy);
int hfi_session_deinit(struct venus_inst *inst)
{
const struct hfi_ops *ops = inst->core->ops;
int ret;
if (inst->state == INST_UNINIT)
return 0;
if (inst->state < INST_INIT)
return -EINVAL;
reinit_completion(&inst->done);
ret = ops->session_end(inst);
if (ret)
return ret;
ret = wait_session_msg(inst);
if (ret)
return ret;
inst->state = INST_UNINIT;
return 0;
}
EXPORT_SYMBOL_GPL(hfi_session_deinit);
int hfi_session_start(struct venus_inst *inst)
{
const struct hfi_ops *ops = inst->core->ops;
int ret;
if (inst->state != INST_LOAD_RESOURCES)
return -EINVAL;
reinit_completion(&inst->done);
ret = ops->session_start(inst);
if (ret)
return ret;
ret = wait_session_msg(inst);
if (ret)
return ret;
inst->state = INST_START;
return 0;
}
int hfi_session_stop(struct venus_inst *inst)
{
const struct hfi_ops *ops = inst->core->ops;
int ret;
if (inst->state != INST_START)
return -EINVAL;
reinit_completion(&inst->done);
ret = ops->session_stop(inst);
if (ret)
return ret;
ret = wait_session_msg(inst);
if (ret)
return ret;
inst->state = INST_STOP;
return 0;
}
int hfi_session_continue(struct venus_inst *inst)
{
struct venus_core *core = inst->core;
if (core->res->hfi_version == HFI_VERSION_1XX)
return 0;
return core->ops->session_continue(inst);
}
EXPORT_SYMBOL_GPL(hfi_session_continue);
int hfi_session_abort(struct venus_inst *inst)
{
const struct hfi_ops *ops = inst->core->ops;
int ret;
reinit_completion(&inst->done);
ret = ops->session_abort(inst);
if (ret)
return ret;
ret = wait_session_msg(inst);
if (ret)
return ret;
return 0;
}
int hfi_session_load_res(struct venus_inst *inst)
{
const struct hfi_ops *ops = inst->core->ops;
int ret;
if (inst->state != INST_INIT)
return -EINVAL;
reinit_completion(&inst->done);
ret = ops->session_load_res(inst);
if (ret)
return ret;
ret = wait_session_msg(inst);
if (ret)
return ret;
inst->state = INST_LOAD_RESOURCES;
return 0;
}
int hfi_session_unload_res(struct venus_inst *inst)
{
const struct hfi_ops *ops = inst->core->ops;
int ret;
if (inst->state != INST_STOP)
return -EINVAL;
reinit_completion(&inst->done);
ret = ops->session_release_res(inst);
if (ret)
return ret;
ret = wait_session_msg(inst);
if (ret)
return ret;
inst->state = INST_RELEASE_RESOURCES;
return 0;
}
int hfi_session_flush(struct venus_inst *inst)
{
const struct hfi_ops *ops = inst->core->ops;
int ret;
reinit_completion(&inst->done);
ret = ops->session_flush(inst, HFI_FLUSH_ALL);
if (ret)
return ret;
ret = wait_session_msg(inst);
if (ret)
return ret;
return 0;
}
EXPORT_SYMBOL_GPL(hfi_session_flush);
int hfi_session_set_buffers(struct venus_inst *inst, struct hfi_buffer_desc *bd)
{
const struct hfi_ops *ops = inst->core->ops;
return ops->session_set_buffers(inst, bd);
}
int hfi_session_unset_buffers(struct venus_inst *inst,
struct hfi_buffer_desc *bd)
{
const struct hfi_ops *ops = inst->core->ops;
int ret;
reinit_completion(&inst->done);
ret = ops->session_unset_buffers(inst, bd);
if (ret)
return ret;
if (!bd->response_required)
return 0;
ret = wait_session_msg(inst);
if (ret)
return ret;
return 0;
}
int hfi_session_get_property(struct venus_inst *inst, u32 ptype,
union hfi_get_property *hprop)
{
const struct hfi_ops *ops = inst->core->ops;
int ret;
if (inst->state < INST_INIT || inst->state >= INST_STOP)
return -EINVAL;
reinit_completion(&inst->done);
ret = ops->session_get_property(inst, ptype);
if (ret)
return ret;
ret = wait_session_msg(inst);
if (ret)
return ret;
*hprop = inst->hprop;
return 0;
}
EXPORT_SYMBOL_GPL(hfi_session_get_property);
int hfi_session_set_property(struct venus_inst *inst, u32 ptype, void *pdata)
{
const struct hfi_ops *ops = inst->core->ops;
if (inst->state < INST_INIT || inst->state >= INST_STOP)
return -EINVAL;
return ops->session_set_property(inst, ptype, pdata);
}
EXPORT_SYMBOL_GPL(hfi_session_set_property);
int hfi_session_process_buf(struct venus_inst *inst, struct hfi_frame_data *fd)
{
const struct hfi_ops *ops = inst->core->ops;
if (fd->buffer_type == HFI_BUFFER_INPUT)
return ops->session_etb(inst, fd);
else if (fd->buffer_type == HFI_BUFFER_OUTPUT ||
fd->buffer_type == HFI_BUFFER_OUTPUT2)
return ops->session_ftb(inst, fd);
return -EINVAL;
}
EXPORT_SYMBOL_GPL(hfi_session_process_buf);
irqreturn_t hfi_isr_thread(int irq, void *dev_id)
{
struct venus_core *core = dev_id;
return core->ops->isr_thread(core);
}
irqreturn_t hfi_isr(int irq, void *dev)
{
struct venus_core *core = dev;
return core->ops->isr(core);
}
int hfi_create(struct venus_core *core, const struct hfi_core_ops *ops)
{
int ret;
if (!ops)
return -EINVAL;
atomic_set(&core->insts_count, 0);
core->core_ops = ops;
core->state = CORE_UNINIT;
init_completion(&core->done);
pkt_set_version(core->res->hfi_version);
ret = venus_hfi_create(core);
return ret;
}
void hfi_destroy(struct venus_core *core)
{
venus_hfi_destroy(core);
}
|