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
104
105
106
107
108
109
110
111
|
/*
* Copyright (c) 2011, Google, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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/kernel.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/io.h>
#include <mach/iomap.h>
#include <mach/irqs.h>
#include <mach/gpio.h>
#include "gpio-names.h"
static int tegra_wake_event_irq[] = {
[0] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PO5),
[1] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PV3),
[2] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PL1),
[3] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PB6),
[4] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PN7),
[5] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PA0),
[6] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PU5),
[7] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PU6),
[8] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PC7),
[9] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PS2),
[10] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PAA1),
[11] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PW3),
[12] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PW2),
[13] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PY6),
[14] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PV6),
[15] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PJ7),
[16] = INT_RTC,
[17] = INT_KBC,
[18] = INT_EXTERNAL_PMU,
[19] = -EINVAL, /* TEGRA_USB1_VBUS, */
[20] = -EINVAL, /* TEGRA_USB3_VBUS, */
[21] = -EINVAL, /* TEGRA_USB1_ID, */
[22] = -EINVAL, /* TEGRA_USB3_ID, */
[23] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PI5),
[24] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PV2),
[25] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PS4),
[26] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PS5),
[27] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PS0),
[28] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PQ6),
[29] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PQ7),
[30] = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PN2),
};
int tegra_irq_to_wake(int irq)
{
int i;
int wake_irq;
int search_gpio;
static int last_wake = -1;
/* Two level wake irq search for gpio based wakeups -
* 1. check for GPIO irq(based on tegra_wake_event_irq table)
* e.g. for a board, wake7 based on GPIO PU6 and irq==358 done first
* 2. check for gpio bank irq assuming search for GPIO irq
* preceded this search.
* e.g. in this step check for gpio bank irq GPIO6 irq==119
*/
for (i = 0; i < ARRAY_SIZE(tegra_wake_event_irq); i++) {
/* return if step 1 matches */
if (tegra_wake_event_irq[i] == irq) {
pr_info("Wake%d for irq=%d\n", i, irq);
last_wake = i;
return i;
}
/* step 2 below uses saved last_wake from step 1
* in previous call */
search_gpio = irq_to_gpio(
tegra_wake_event_irq[i]);
if (search_gpio < 0)
continue;
wake_irq = tegra_gpio_get_bank_int_nr(search_gpio);
if (wake_irq < 0)
continue;
if ((last_wake == i) &&
(wake_irq == irq)) {
pr_info("gpio bank wake found: wake%d for irq=%d\n",
i, irq);
return i;
}
}
return -EINVAL;
}
int tegra_wake_to_irq(int wake)
{
if (wake < 0)
return -EINVAL;
if (wake >= ARRAY_SIZE(tegra_wake_event_irq))
return -EINVAL;
return tegra_wake_event_irq[wake];
}
|
