--- /dev/null
+/*
+ * 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;
+ 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;
+}
+
+static int core_deinit_wait_atomic_t(atomic_t *p)
+{
+ schedule();
+ return 0;
+}
+
+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_on_atomic_t(&core->insts_count, core_deinit_wait_atomic_t,
+ TASK_UNINTERRUPTIBLE);
+ 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)
+ return ret;
+
+ 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;
+ u32 codec;
+ int ret;
+
+ codec = to_codec_type(pixfmt);
+ reinit_completion(&inst->done);
+
+ ret = ops->session_init(inst, inst->session_type, 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);
+ atomic_dec(&core->insts_count);
+ wake_up_atomic_t(&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_3XX)
+ 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)
+ return ops->session_ftb(inst, fd);
+
+ return -EINVAL;
+}
+
+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);
+}
git.samba.org / sfrench / cifs-2.6.git / blobdiff