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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
// SPDX-License-Identifier: GPL-2.0
/*
* Sandbox driver for interrupts
*
* Copyright 2019 Google LLC
*/
#include <common.h>
#include <dm.h>
#include <irq.h>
#include <acpi/acpi_device.h>
#include <asm/irq.h>
#include <asm/test.h>
static int sandbox_set_polarity(struct udevice *dev, uint irq, bool active_low)
{
if (irq > 10)
return -EINVAL;
return 0;
}
static int sandbox_route_pmc_gpio_gpe(struct udevice *dev, uint pmc_gpe_num)
{
if (pmc_gpe_num > 10)
return -ENOENT;
return pmc_gpe_num + 1;
}
static int sandbox_snapshot_polarities(struct udevice *dev)
{
return 0;
}
static int sandbox_restore_polarities(struct udevice *dev)
{
return 0;
}
static int sandbox_irq_read_and_clear(struct irq *irq)
{
struct sandbox_irq_priv *priv = dev_get_priv(irq->dev);
if (irq->id != SANDBOX_IRQN_PEND)
return -EINVAL;
priv->count++;
if (priv->pending) {
priv->pending = false;
return 1;
}
if (!(priv->count % 3))
priv->pending = true;
return 0;
}
static int sandbox_irq_of_xlate(struct irq *irq,
struct ofnode_phandle_args *args)
{
irq->id = args->args[0];
return 0;
}
static __maybe_unused int sandbox_get_acpi(const struct irq *irq,
struct acpi_irq *acpi_irq)
{
acpi_irq->pin = irq->id;
acpi_irq->mode = ACPI_IRQ_LEVEL_TRIGGERED;
acpi_irq->polarity = ACPI_IRQ_ACTIVE_HIGH;
acpi_irq->shared = ACPI_IRQ_SHARED;
acpi_irq->wake = ACPI_IRQ_WAKE;
return 0;
}
static const struct irq_ops sandbox_irq_ops = {
.route_pmc_gpio_gpe = sandbox_route_pmc_gpio_gpe,
.set_polarity = sandbox_set_polarity,
.snapshot_polarities = sandbox_snapshot_polarities,
.restore_polarities = sandbox_restore_polarities,
.read_and_clear = sandbox_irq_read_and_clear,
.of_xlate = sandbox_irq_of_xlate,
#if CONFIG_IS_ENABLED(ACPIGEN)
.get_acpi = sandbox_get_acpi,
#endif
};
static const struct udevice_id sandbox_irq_ids[] = {
{ .compatible = "sandbox,irq", SANDBOX_IRQT_BASE },
{ }
};
U_BOOT_DRIVER(sandbox_irq) = {
.name = "sandbox_irq",
.id = UCLASS_IRQ,
.of_match = sandbox_irq_ids,
.ops = &sandbox_irq_ops,
.priv_auto = sizeof(struct sandbox_irq_priv),
DM_HEADER(<asm/irq.h>)
};
|
