diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-01 13:53:43 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-01 13:53:43 -0400 |
commit | 00e9028a95fb8a4d79f2fb695a853f33ea7d3b57 (patch) | |
tree | 2dea2ae498a6ce57de8890e87185aca5e9f3ad2d /arch/sh/boards/mach-landisk/psw.c | |
parent | 57b1494d2ba544c62673234da6115c21fac27ffc (diff) | |
parent | 7cb93181629c613ee2b8f4ffe3446f8003074842 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (28 commits)
mm/hugetlb.c must #include <asm/io.h>
video: Fix up hp6xx driver build regressions.
sh: defconfig updates.
sh: Kill off stray mach-rsk7203 reference.
serial: sh-sci: Fix up SH7760/SH7780/SH7785 early printk regression.
sh: Move out individual boards without mach groups.
sh: Make sure AT_SYSINFO_EHDR is exposed to userspace in asm/auxvec.h.
sh: Allow SH-3 and SH-5 to use common headers.
sh: Provide common CPU headers, prune the SH-2 and SH-2A directories.
sh/maple: clean maple bus code
sh: More header path fixups for mach dir refactoring.
sh: Move out the solution engine headers to arch/sh/include/mach-se/
sh: I2C fix for AP325RXA and Migo-R
sh: Shuffle the board directories in to mach groups.
sh: dma-sh: Fix up dreamcast dma.h mach path.
sh: Switch KBUILD_DEFCONFIG to shx3_defconfig.
sh: Add ARCH_DEFCONFIG entries for sh and sh64.
sh: Fix compile error of Solution Engine
sh: Proper __put_user_asm() size mismatch fix.
sh: Stub in a dummy ENTRY_OFFSET for uImage offset calculation.
...
Diffstat (limited to 'arch/sh/boards/mach-landisk/psw.c')
-rw-r--r-- | arch/sh/boards/mach-landisk/psw.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-landisk/psw.c b/arch/sh/boards/mach-landisk/psw.c new file mode 100644 index 000000000000..e6b0efa098d1 --- /dev/null +++ b/arch/sh/boards/mach-landisk/psw.c | |||
@@ -0,0 +1,143 @@ | |||
1 | /* | ||
2 | * arch/sh/boards/landisk/psw.c | ||
3 | * | ||
4 | * push switch support for LANDISK and USL-5P | ||
5 | * | ||
6 | * Copyright (C) 2006-2007 Paul Mundt | ||
7 | * Copyright (C) 2007 kogiidena | ||
8 | * | ||
9 | * This file is subject to the terms and conditions of the GNU General Public | ||
10 | * License. See the file "COPYING" in the main directory of this archive | ||
11 | * for more details. | ||
12 | */ | ||
13 | #include <linux/io.h> | ||
14 | #include <linux/init.h> | ||
15 | #include <linux/interrupt.h> | ||
16 | #include <linux/platform_device.h> | ||
17 | #include <mach-landisk/mach/iodata_landisk.h> | ||
18 | #include <asm/push-switch.h> | ||
19 | |||
20 | static irqreturn_t psw_irq_handler(int irq, void *arg) | ||
21 | { | ||
22 | struct platform_device *pdev = arg; | ||
23 | struct push_switch *psw = platform_get_drvdata(pdev); | ||
24 | struct push_switch_platform_info *psw_info = pdev->dev.platform_data; | ||
25 | unsigned int sw_value; | ||
26 | int ret = 0; | ||
27 | |||
28 | sw_value = (0x0ff & (~ctrl_inb(PA_STATUS))); | ||
29 | |||
30 | /* Nothing to do if there's no state change */ | ||
31 | if (psw->state) { | ||
32 | ret = 1; | ||
33 | goto out; | ||
34 | } | ||
35 | |||
36 | /* Figure out who raised it */ | ||
37 | if (sw_value & (1 << psw_info->bit)) { | ||
38 | psw->state = 1; | ||
39 | mod_timer(&psw->debounce, jiffies + 50); | ||
40 | ret = 1; | ||
41 | } | ||
42 | |||
43 | out: | ||
44 | /* Clear the switch IRQs */ | ||
45 | ctrl_outb(0x00, PA_PWRINT_CLR); | ||
46 | |||
47 | return IRQ_RETVAL(ret); | ||
48 | } | ||
49 | |||
50 | static struct resource psw_power_resources[] = { | ||
51 | [0] = { | ||
52 | .start = IRQ_POWER, | ||
53 | .flags = IORESOURCE_IRQ, | ||
54 | }, | ||
55 | }; | ||
56 | |||
57 | static struct resource psw_usl5p_resources[] = { | ||
58 | [0] = { | ||
59 | .start = IRQ_BUTTON, | ||
60 | .flags = IORESOURCE_IRQ, | ||
61 | }, | ||
62 | }; | ||
63 | |||
64 | static struct push_switch_platform_info psw_power_platform_data = { | ||
65 | .name = "psw_power", | ||
66 | .bit = 4, | ||
67 | .irq_flags = IRQF_SHARED, | ||
68 | .irq_handler = psw_irq_handler, | ||
69 | }; | ||
70 | |||
71 | static struct push_switch_platform_info psw1_platform_data = { | ||
72 | .name = "psw1", | ||
73 | .bit = 0, | ||
74 | .irq_flags = IRQF_SHARED, | ||
75 | .irq_handler = psw_irq_handler, | ||
76 | }; | ||
77 | |||
78 | static struct push_switch_platform_info psw2_platform_data = { | ||
79 | .name = "psw2", | ||
80 | .bit = 2, | ||
81 | .irq_flags = IRQF_SHARED, | ||
82 | .irq_handler = psw_irq_handler, | ||
83 | }; | ||
84 | |||
85 | static struct push_switch_platform_info psw3_platform_data = { | ||
86 | .name = "psw3", | ||
87 | .bit = 1, | ||
88 | .irq_flags = IRQF_SHARED, | ||
89 | .irq_handler = psw_irq_handler, | ||
90 | }; | ||
91 | |||
92 | static struct platform_device psw_power_switch_device = { | ||
93 | .name = "push-switch", | ||
94 | .id = 0, | ||
95 | .num_resources = ARRAY_SIZE(psw_power_resources), | ||
96 | .resource = psw_power_resources, | ||
97 | .dev = { | ||
98 | .platform_data = &psw_power_platform_data, | ||
99 | }, | ||
100 | }; | ||
101 | |||
102 | static struct platform_device psw1_switch_device = { | ||
103 | .name = "push-switch", | ||
104 | .id = 1, | ||
105 | .num_resources = ARRAY_SIZE(psw_usl5p_resources), | ||
106 | .resource = psw_usl5p_resources, | ||
107 | .dev = { | ||
108 | .platform_data = &psw1_platform_data, | ||
109 | }, | ||
110 | }; | ||
111 | |||
112 | static struct platform_device psw2_switch_device = { | ||
113 | .name = "push-switch", | ||
114 | .id = 2, | ||
115 | .num_resources = ARRAY_SIZE(psw_usl5p_resources), | ||
116 | .resource = psw_usl5p_resources, | ||
117 | .dev = { | ||
118 | .platform_data = &psw2_platform_data, | ||
119 | }, | ||
120 | }; | ||
121 | |||
122 | static struct platform_device psw3_switch_device = { | ||
123 | .name = "push-switch", | ||
124 | .id = 3, | ||
125 | .num_resources = ARRAY_SIZE(psw_usl5p_resources), | ||
126 | .resource = psw_usl5p_resources, | ||
127 | .dev = { | ||
128 | .platform_data = &psw3_platform_data, | ||
129 | }, | ||
130 | }; | ||
131 | |||
132 | static struct platform_device *psw_devices[] = { | ||
133 | &psw_power_switch_device, | ||
134 | &psw1_switch_device, | ||
135 | &psw2_switch_device, | ||
136 | &psw3_switch_device, | ||
137 | }; | ||
138 | |||
139 | static int __init psw_init(void) | ||
140 | { | ||
141 | return platform_add_devices(psw_devices, ARRAY_SIZE(psw_devices)); | ||
142 | } | ||
143 | module_init(psw_init); | ||