Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
4 */
5
6#include <linux/pm_runtime.h>
7#include <media/v4l2-mem2mem.h>
8
9#include "iris_instance.h"
10#include "iris_utils.h"
11
12bool iris_res_is_less_than(u32 width, u32 height,
13 u32 ref_width, u32 ref_height)
14{
15 u32 num_mbs = NUM_MBS_PER_FRAME(height, width);
16 u32 max_side = max(ref_width, ref_height);
17
18 if (num_mbs < NUM_MBS_PER_FRAME(ref_height, ref_width) &&
19 width < max_side &&
20 height < max_side)
21 return true;
22
23 return false;
24}
25
26int iris_get_mbpf(struct iris_inst *inst)
27{
28 struct v4l2_format *inp_f = inst->fmt_src;
29 u32 height = max(inp_f->fmt.pix_mp.height, inst->crop.height);
30 u32 width = max(inp_f->fmt.pix_mp.width, inst->crop.width);
31
32 return NUM_MBS_PER_FRAME(height, width);
33}
34
35bool iris_split_mode_enabled(struct iris_inst *inst)
36{
37 return inst->fmt_dst->fmt.pix_mp.pixelformat == V4L2_PIX_FMT_NV12;
38}
39
40void iris_helper_buffers_done(struct iris_inst *inst, unsigned int type,
41 enum vb2_buffer_state state)
42{
43 struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx;
44 struct vb2_v4l2_buffer *buf;
45
46 if (V4L2_TYPE_IS_OUTPUT(type)) {
47 while ((buf = v4l2_m2m_src_buf_remove(m2m_ctx)))
48 v4l2_m2m_buf_done(buf, state);
49 } else if (V4L2_TYPE_IS_CAPTURE(type)) {
50 while ((buf = v4l2_m2m_dst_buf_remove(m2m_ctx)))
51 v4l2_m2m_buf_done(buf, state);
52 }
53}
54
55int iris_wait_for_session_response(struct iris_inst *inst, bool is_flush)
56{
57 struct iris_core *core = inst->core;
58 u32 hw_response_timeout_val;
59 struct completion *done;
60 int ret;
61
62 hw_response_timeout_val = core->iris_platform_data->hw_response_timeout;
63 done = is_flush ? &inst->flush_completion : &inst->completion;
64
65 mutex_unlock(&inst->lock);
66 ret = wait_for_completion_timeout(done, msecs_to_jiffies(hw_response_timeout_val));
67 mutex_lock(&inst->lock);
68 if (!ret) {
69 iris_inst_change_state(inst, IRIS_INST_ERROR);
70 return -ETIMEDOUT;
71 }
72
73 return 0;
74}
75
76struct iris_inst *iris_get_instance(struct iris_core *core, u32 session_id)
77{
78 struct iris_inst *inst;
79
80 mutex_lock(&core->lock);
81 list_for_each_entry(inst, &core->instances, list) {
82 if (inst->session_id == session_id) {
83 mutex_unlock(&core->lock);
84 return inst;
85 }
86 }
87
88 mutex_unlock(&core->lock);
89 return NULL;
90}