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Input: sgi_btns - add support for SGI Indy volume buttons

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Also rename sgio2_btns to sgi_btns since the driver is not only
for SGI O2 anymore.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Thomas Bogendoerfer 2008-07-19 00:14:26 -04:00 committed by Dmitry Torokhov
parent 305e342bba
commit 48ad88b1f2
3 changed files with 54 additions and 32 deletions
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10
drivers/input/misc/Kconfig
View file

@ -189,15 +189,15 @@ config INPUT_UINPUT
To compile this driver as a module, choose M here: the To compile this driver as a module, choose M here: the
module will be called uinput. module will be called uinput.
config INPUT_SGIO2_BTNS config INPUT_SGI_BTNS
tristate "SGI O2 volume button interface" tristate "SGI Indy/O2 volume button interface"
depends on SGI_IP32 depends on SGI_IP22 || SGI_IP32
select INPUT_POLLDEV select INPUT_POLLDEV
help help
Say Y here if you want to support SGI O2 volume button interface. Say Y here if you want to support SGI Indy/O2 volume button interface.
To compile this driver as a module, choose M here: the To compile this driver as a module, choose M here: the
module will be called sgio_btns. module will be called sgi_btns.
config HP_SDC_RTC config HP_SDC_RTC
tristate "HP SDC Real Time Clock" tristate "HP SDC Real Time Clock"

2
drivers/input/misc/Makefile
View file

@ -19,4 +19,4 @@ obj-$(CONFIG_INPUT_YEALINK) += yealink.o
obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
obj-$(CONFIG_INPUT_UINPUT) += uinput.o obj-$(CONFIG_INPUT_UINPUT) += uinput.o
obj-$(CONFIG_INPUT_APANEL) += apanel.o obj-$(CONFIG_INPUT_APANEL) += apanel.o
obj-$(CONFIG_INPUT_SGIO2_BTNS) += sgio2_btns.o obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o

74
drivers/input/misc/sgio2_btns.c → drivers/input/misc/sgi_btns.c
View file

@ -1,5 +1,5 @@
/* /*
* SGI O2 Volume Button interface driver * SGI Volume Button interface driver
* *
* Copyright (C) 2008 Thomas Bogendoerfer <tsbogend@alpha.franken.de> * Copyright (C) 2008 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
* *
@ -23,35 +23,57 @@
#include <linux/module.h> #include <linux/module.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#ifdef CONFIG_SGI_IP22
#include <asm/sgi/ioc.h>
static inline u8 button_status(void)
{
u8 status;
status = readb(&sgioc->panel) ^ 0xa0;
return ((status & 0x80) >> 6) | ((status & 0x20) >> 5);
}
#endif
#ifdef CONFIG_SGI_IP32
#include <asm/ip32/mace.h> #include <asm/ip32/mace.h>
static inline u8 button_status(void)
{
u64 status;
status = readq(&mace->perif.audio.control);
writeq(status & ~(3U << 23), &mace->perif.audio.control);
return (status >> 23) & 3;
}
#endif
#define BUTTONS_POLL_INTERVAL 30 /* msec */ #define BUTTONS_POLL_INTERVAL 30 /* msec */
#define BUTTONS_COUNT_THRESHOLD 3 #define BUTTONS_COUNT_THRESHOLD 3
static const unsigned short sgio2_map[] = { static const unsigned short sgi_map[] = {
KEY_VOLUMEUP, KEY_VOLUMEDOWN,
KEY_VOLUMEDOWN KEY_VOLUMEUP
}; };
struct buttons_dev { struct buttons_dev {
struct input_polled_dev *poll_dev; struct input_polled_dev *poll_dev;
unsigned short keymap[ARRAY_SIZE(sgio2_map)]; unsigned short keymap[ARRAY_SIZE(sgi_map)];
int count[ARRAY_SIZE(sgio2_map)]; int count[ARRAY_SIZE(sgi_map)];
void __iomem *reg;
}; };
static void handle_buttons(struct input_polled_dev *dev) static void handle_buttons(struct input_polled_dev *dev)
{ {
struct buttons_dev *bdev = dev->private; struct buttons_dev *bdev = dev->private;
struct input_dev *input = dev->input; struct input_dev *input = dev->input;
u64 status; u8 status;
int i; int i;
status = (readq(&mace->perif.audio.control) >> 23) & 3; status = button_status();
for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) { for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) {
if (status & (1U << i)) { if (status & (1U << i)) {
writeq(status & ~(1U << i), &mace->perif.audio.control);
if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) { if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) {
input_event(input, EV_MSC, MSC_SCAN, i); input_event(input, EV_MSC, MSC_SCAN, i);
input_report_key(input, bdev->keymap[i], 1); input_report_key(input, bdev->keymap[i], 1);
@ -68,7 +90,7 @@ static void handle_buttons(struct input_polled_dev *dev)
} }
} }
static int __devinit sgio2_buttons_probe(struct platform_device *pdev) static int __devinit sgi_buttons_probe(struct platform_device *pdev)
{ {
struct buttons_dev *bdev; struct buttons_dev *bdev;
struct input_polled_dev *poll_dev; struct input_polled_dev *poll_dev;
@ -82,15 +104,15 @@ static int __devinit sgio2_buttons_probe(struct platform_device *pdev)
goto err_free_mem; goto err_free_mem;
} }
memcpy(bdev->keymap, sgio2_map, sizeof(bdev->keymap)); memcpy(bdev->keymap, sgi_map, sizeof(bdev->keymap));
poll_dev->private = bdev; poll_dev->private = bdev;
poll_dev->poll = handle_buttons; poll_dev->poll = handle_buttons;
poll_dev->poll_interval = BUTTONS_POLL_INTERVAL; poll_dev->poll_interval = BUTTONS_POLL_INTERVAL;
input = poll_dev->input; input = poll_dev->input;
input->name = "SGI O2 buttons"; input->name = "SGI buttons";
input->phys = "sgio2/input0"; input->phys = "sgi/input0";
input->id.bustype = BUS_HOST; input->id.bustype = BUS_HOST;
input->dev.parent = &pdev->dev; input->dev.parent = &pdev->dev;
@ -100,7 +122,7 @@ static int __devinit sgio2_buttons_probe(struct platform_device *pdev)
input_set_capability(input, EV_MSC, MSC_SCAN); input_set_capability(input, EV_MSC, MSC_SCAN);
__set_bit(EV_KEY, input->evbit); __set_bit(EV_KEY, input->evbit);
for (i = 0; i < ARRAY_SIZE(sgio2_map); i++) for (i = 0; i < ARRAY_SIZE(sgi_map); i++)
__set_bit(bdev->keymap[i], input->keybit); __set_bit(bdev->keymap[i], input->keybit);
__clear_bit(KEY_RESERVED, input->keybit); __clear_bit(KEY_RESERVED, input->keybit);
@ -120,7 +142,7 @@ static int __devinit sgio2_buttons_probe(struct platform_device *pdev)
return error; return error;
} }
static int __devexit sgio2_buttons_remove(struct platform_device *pdev) static int __devexit sgi_buttons_remove(struct platform_device *pdev)
{ {
struct device *dev = &pdev->dev; struct device *dev = &pdev->dev;
struct buttons_dev *bdev = dev_get_drvdata(dev); struct buttons_dev *bdev = dev_get_drvdata(dev);
@ -133,24 +155,24 @@ static int __devexit sgio2_buttons_remove(struct platform_device *pdev)
return 0; return 0;
} }
static struct platform_driver sgio2_buttons_driver = { static struct platform_driver sgi_buttons_driver = {
.probe = sgio2_buttons_probe, .probe = sgi_buttons_probe,
.remove = __devexit_p(sgio2_buttons_remove), .remove = __devexit_p(sgi_buttons_remove),
.driver = { .driver = {
.name = "sgio2btns", .name = "sgibtns",
.owner = THIS_MODULE, .owner = THIS_MODULE,
}, },
}; };
static int __init sgio2_buttons_init(void) static int __init sgi_buttons_init(void)
{ {
return platform_driver_register(&sgio2_buttons_driver); return platform_driver_register(&sgi_buttons_driver);
} }
static void __exit sgio2_buttons_exit(void) static void __exit sgi_buttons_exit(void)
{ {
platform_driver_unregister(&sgio2_buttons_driver); platform_driver_unregister(&sgi_buttons_driver);
} }
module_init(sgio2_buttons_init); module_init(sgi_buttons_init);
module_exit(sgio2_buttons_exit); module_exit(sgi_buttons_exit);