1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/* Copyright 2021 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "console.h"
#include "hooks.h"
#include "ipi_chip.h"
#include "queue.h"
#include "queue_policies.h"
#include "registers.h"
#include "task.h"
#include "util.h"
#include "venc.h"
#define CPRINTF(format, args...) cprintf(CC_IPI, format, ##args)
#define CPRINTS(format, args...) cprints(CC_IPI, format, ##args)
static void event_venc_written(struct consumer const *consumer, size_t count)
{
task_wake(TASK_ID_VENC_SERVICE);
}
static struct consumer const event_venc_consumer;
static struct queue const event_venc_queue = QUEUE_DIRECT(8,
struct venc_msg, null_producer, event_venc_consumer);
static struct consumer const event_venc_consumer = {
.queue = &event_venc_queue,
.ops = &((struct consumer_ops const) {
.written = event_venc_written,
}),
};
/* Stub functions only provided by private overlays. */
#ifndef HAVE_PRIVATE_MT_SCP
void venc_h264_msg_handler(void *data) {}
#endif
static void venc_h264_ipi_handler(int id, void *data, uint32_t len)
{
struct venc_msg rsv_msg;
if (!len) {
CPRINTS("len is zero.");
return;
}
rsv_msg.type = VENC_H264;
memcpy(rsv_msg.msg, data, MIN(len, sizeof(rsv_msg.msg)));
/*
* If there is no other IPI handler touch this queue, we don't need to
* interrupt_disable() or task_disable_irq().
*/
if (!queue_add_unit(&event_venc_queue, &rsv_msg))
CPRINTS("Could not send venc %d to the queue.", rsv_msg.type);
}
DECLARE_IPI(SCP_IPI_VENC_H264, venc_h264_ipi_handler, 0);
void venc_service_task(void *u)
{
struct venc_msg rsv_msg;
size_t size;
typedef void (*venc_msg_handler)(void *msg);
static venc_msg_handler mtk_venc_msg_handle[VENC_MAX] = {
[VENC_H264] = venc_h264_msg_handler,
};
while (1) {
/*
* Queue unit is added in IPI handler, which is in ISR context.
* Disable IRQ to prevent a clobbered queue.
*/
ipi_disable_irq();
size = queue_remove_unit(&event_venc_queue, &rsv_msg);
ipi_enable_irq();
if (!size)
task_wait_event(-1);
else if (mtk_venc_msg_handle[rsv_msg.type])
mtk_venc_msg_handle[rsv_msg.type](rsv_msg.msg);
else
CPRINTS("venc handler %d not exists.", rsv_msg.type);
}
}
|
