mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-04 09:59:32 +00:00
Input: sgi_btns - add support for SGI Indy volume buttons
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:
parent
305e342bba
commit
48ad88b1f2
3 changed files with 54 additions and 32 deletions
|
@ -189,15 +189,15 @@ config INPUT_UINPUT
|
|||
To compile this driver as a module, choose M here: the
|
||||
module will be called uinput.
|
||||
|
||||
config INPUT_SGIO2_BTNS
|
||||
tristate "SGI O2 volume button interface"
|
||||
depends on SGI_IP32
|
||||
config INPUT_SGI_BTNS
|
||||
tristate "SGI Indy/O2 volume button interface"
|
||||
depends on SGI_IP22 || SGI_IP32
|
||||
select INPUT_POLLDEV
|
||||
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
|
||||
module will be called sgio_btns.
|
||||
module will be called sgi_btns.
|
||||
|
||||
config HP_SDC_RTC
|
||||
tristate "HP SDC Real Time Clock"
|
||||
|
|
|
@ -19,4 +19,4 @@ obj-$(CONFIG_INPUT_YEALINK) += yealink.o
|
|||
obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
|
||||
obj-$(CONFIG_INPUT_UINPUT) += uinput.o
|
||||
obj-$(CONFIG_INPUT_APANEL) += apanel.o
|
||||
obj-$(CONFIG_INPUT_SGIO2_BTNS) += sgio2_btns.o
|
||||
obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
|
||||
|
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
* SGI O2 Volume Button interface driver
|
||||
* SGI Volume Button interface driver
|
||||
*
|
||||
* Copyright (C) 2008 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
|
||||
*
|
||||
|
@ -23,35 +23,57 @@
|
|||
#include <linux/module.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>
|
||||
|
||||
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_COUNT_THRESHOLD 3
|
||||
|
||||
static const unsigned short sgio2_map[] = {
|
||||
KEY_VOLUMEUP,
|
||||
KEY_VOLUMEDOWN
|
||||
static const unsigned short sgi_map[] = {
|
||||
KEY_VOLUMEDOWN,
|
||||
KEY_VOLUMEUP
|
||||
};
|
||||
|
||||
struct buttons_dev {
|
||||
struct input_polled_dev *poll_dev;
|
||||
unsigned short keymap[ARRAY_SIZE(sgio2_map)];
|
||||
int count[ARRAY_SIZE(sgio2_map)];
|
||||
void __iomem *reg;
|
||||
unsigned short keymap[ARRAY_SIZE(sgi_map)];
|
||||
int count[ARRAY_SIZE(sgi_map)];
|
||||
};
|
||||
|
||||
static void handle_buttons(struct input_polled_dev *dev)
|
||||
{
|
||||
struct buttons_dev *bdev = dev->private;
|
||||
struct input_dev *input = dev->input;
|
||||
u64 status;
|
||||
u8 status;
|
||||
int i;
|
||||
|
||||
status = (readq(&mace->perif.audio.control) >> 23) & 3;
|
||||
status = button_status();
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) {
|
||||
if (status & (1U << i)) {
|
||||
writeq(status & ~(1U << i), &mace->perif.audio.control);
|
||||
if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) {
|
||||
input_event(input, EV_MSC, MSC_SCAN, i);
|
||||
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 input_polled_dev *poll_dev;
|
||||
|
@ -82,15 +104,15 @@ static int __devinit sgio2_buttons_probe(struct platform_device *pdev)
|
|||
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->poll = handle_buttons;
|
||||
poll_dev->poll_interval = BUTTONS_POLL_INTERVAL;
|
||||
|
||||
input = poll_dev->input;
|
||||
input->name = "SGI O2 buttons";
|
||||
input->phys = "sgio2/input0";
|
||||
input->name = "SGI buttons";
|
||||
input->phys = "sgi/input0";
|
||||
input->id.bustype = BUS_HOST;
|
||||
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);
|
||||
__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);
|
||||
__clear_bit(KEY_RESERVED, input->keybit);
|
||||
|
||||
|
@ -120,7 +142,7 @@ static int __devinit sgio2_buttons_probe(struct platform_device *pdev)
|
|||
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 buttons_dev *bdev = dev_get_drvdata(dev);
|
||||
|
@ -133,24 +155,24 @@ static int __devexit sgio2_buttons_remove(struct platform_device *pdev)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver sgio2_buttons_driver = {
|
||||
.probe = sgio2_buttons_probe,
|
||||
.remove = __devexit_p(sgio2_buttons_remove),
|
||||
static struct platform_driver sgi_buttons_driver = {
|
||||
.probe = sgi_buttons_probe,
|
||||
.remove = __devexit_p(sgi_buttons_remove),
|
||||
.driver = {
|
||||
.name = "sgio2btns",
|
||||
.name = "sgibtns",
|
||||
.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_exit(sgio2_buttons_exit);
|
||||
module_init(sgi_buttons_init);
|
||||
module_exit(sgi_buttons_exit);
|
Loading…
Reference in a new issue