forked from Minki/linux
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:
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305e342bba
commit
48ad88b1f2
@ -189,15 +189,15 @@ config INPUT_UINPUT
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To compile this driver as a module, choose M here: the
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To compile this driver as a module, choose M here: the
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module will be called uinput.
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module will be called uinput.
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config INPUT_SGIO2_BTNS
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config INPUT_SGI_BTNS
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tristate "SGI O2 volume button interface"
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tristate "SGI Indy/O2 volume button interface"
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depends on SGI_IP32
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depends on SGI_IP22 || SGI_IP32
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select INPUT_POLLDEV
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select INPUT_POLLDEV
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help
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help
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Say Y here if you want to support SGI O2 volume button interface.
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Say Y here if you want to support SGI Indy/O2 volume button interface.
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To compile this driver as a module, choose M here: the
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To compile this driver as a module, choose M here: the
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module will be called sgio_btns.
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module will be called sgi_btns.
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config HP_SDC_RTC
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config HP_SDC_RTC
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tristate "HP SDC Real Time Clock"
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tristate "HP SDC Real Time Clock"
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@ -19,4 +19,4 @@ obj-$(CONFIG_INPUT_YEALINK) += yealink.o
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obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
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obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
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obj-$(CONFIG_INPUT_UINPUT) += uinput.o
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obj-$(CONFIG_INPUT_UINPUT) += uinput.o
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obj-$(CONFIG_INPUT_APANEL) += apanel.o
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obj-$(CONFIG_INPUT_APANEL) += apanel.o
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obj-$(CONFIG_INPUT_SGIO2_BTNS) += sgio2_btns.o
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obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
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@ -1,5 +1,5 @@
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/*
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/*
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* SGI O2 Volume Button interface driver
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* SGI Volume Button interface driver
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*
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*
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* Copyright (C) 2008 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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* Copyright (C) 2008 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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*
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*
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@ -23,35 +23,57 @@
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#include <linux/module.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/platform_device.h>
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#ifdef CONFIG_SGI_IP22
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#include <asm/sgi/ioc.h>
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static inline u8 button_status(void)
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{
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u8 status;
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status = readb(&sgioc->panel) ^ 0xa0;
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return ((status & 0x80) >> 6) | ((status & 0x20) >> 5);
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}
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#endif
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#ifdef CONFIG_SGI_IP32
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#include <asm/ip32/mace.h>
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#include <asm/ip32/mace.h>
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static inline u8 button_status(void)
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{
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u64 status;
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status = readq(&mace->perif.audio.control);
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writeq(status & ~(3U << 23), &mace->perif.audio.control);
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return (status >> 23) & 3;
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}
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#endif
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#define BUTTONS_POLL_INTERVAL 30 /* msec */
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#define BUTTONS_POLL_INTERVAL 30 /* msec */
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#define BUTTONS_COUNT_THRESHOLD 3
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#define BUTTONS_COUNT_THRESHOLD 3
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static const unsigned short sgio2_map[] = {
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static const unsigned short sgi_map[] = {
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KEY_VOLUMEUP,
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KEY_VOLUMEDOWN,
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KEY_VOLUMEDOWN
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KEY_VOLUMEUP
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};
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};
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struct buttons_dev {
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struct buttons_dev {
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struct input_polled_dev *poll_dev;
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struct input_polled_dev *poll_dev;
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unsigned short keymap[ARRAY_SIZE(sgio2_map)];
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unsigned short keymap[ARRAY_SIZE(sgi_map)];
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int count[ARRAY_SIZE(sgio2_map)];
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int count[ARRAY_SIZE(sgi_map)];
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void __iomem *reg;
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};
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};
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static void handle_buttons(struct input_polled_dev *dev)
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static void handle_buttons(struct input_polled_dev *dev)
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{
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{
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struct buttons_dev *bdev = dev->private;
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struct buttons_dev *bdev = dev->private;
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struct input_dev *input = dev->input;
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struct input_dev *input = dev->input;
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u64 status;
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u8 status;
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int i;
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int i;
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status = (readq(&mace->perif.audio.control) >> 23) & 3;
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status = button_status();
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for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) {
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for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) {
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if (status & (1U << i)) {
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if (status & (1U << i)) {
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writeq(status & ~(1U << i), &mace->perif.audio.control);
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if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) {
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if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) {
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input_event(input, EV_MSC, MSC_SCAN, i);
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input_event(input, EV_MSC, MSC_SCAN, i);
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input_report_key(input, bdev->keymap[i], 1);
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input_report_key(input, bdev->keymap[i], 1);
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@ -68,7 +90,7 @@ static void handle_buttons(struct input_polled_dev *dev)
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}
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}
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}
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}
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static int __devinit sgio2_buttons_probe(struct platform_device *pdev)
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static int __devinit sgi_buttons_probe(struct platform_device *pdev)
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{
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{
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struct buttons_dev *bdev;
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struct buttons_dev *bdev;
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struct input_polled_dev *poll_dev;
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struct input_polled_dev *poll_dev;
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@ -82,15 +104,15 @@ static int __devinit sgio2_buttons_probe(struct platform_device *pdev)
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goto err_free_mem;
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goto err_free_mem;
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}
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}
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memcpy(bdev->keymap, sgio2_map, sizeof(bdev->keymap));
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memcpy(bdev->keymap, sgi_map, sizeof(bdev->keymap));
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poll_dev->private = bdev;
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poll_dev->private = bdev;
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poll_dev->poll = handle_buttons;
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poll_dev->poll = handle_buttons;
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poll_dev->poll_interval = BUTTONS_POLL_INTERVAL;
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poll_dev->poll_interval = BUTTONS_POLL_INTERVAL;
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input = poll_dev->input;
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input = poll_dev->input;
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input->name = "SGI O2 buttons";
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input->name = "SGI buttons";
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input->phys = "sgio2/input0";
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input->phys = "sgi/input0";
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input->id.bustype = BUS_HOST;
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input->id.bustype = BUS_HOST;
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input->dev.parent = &pdev->dev;
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input->dev.parent = &pdev->dev;
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@ -100,7 +122,7 @@ static int __devinit sgio2_buttons_probe(struct platform_device *pdev)
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input_set_capability(input, EV_MSC, MSC_SCAN);
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input_set_capability(input, EV_MSC, MSC_SCAN);
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__set_bit(EV_KEY, input->evbit);
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__set_bit(EV_KEY, input->evbit);
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for (i = 0; i < ARRAY_SIZE(sgio2_map); i++)
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for (i = 0; i < ARRAY_SIZE(sgi_map); i++)
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__set_bit(bdev->keymap[i], input->keybit);
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__set_bit(bdev->keymap[i], input->keybit);
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__clear_bit(KEY_RESERVED, input->keybit);
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__clear_bit(KEY_RESERVED, input->keybit);
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@ -120,7 +142,7 @@ static int __devinit sgio2_buttons_probe(struct platform_device *pdev)
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return error;
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return error;
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}
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}
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static int __devexit sgio2_buttons_remove(struct platform_device *pdev)
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static int __devexit sgi_buttons_remove(struct platform_device *pdev)
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{
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{
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struct device *dev = &pdev->dev;
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struct device *dev = &pdev->dev;
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struct buttons_dev *bdev = dev_get_drvdata(dev);
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struct buttons_dev *bdev = dev_get_drvdata(dev);
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@ -133,24 +155,24 @@ static int __devexit sgio2_buttons_remove(struct platform_device *pdev)
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return 0;
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return 0;
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}
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}
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static struct platform_driver sgio2_buttons_driver = {
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static struct platform_driver sgi_buttons_driver = {
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.probe = sgio2_buttons_probe,
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.probe = sgi_buttons_probe,
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.remove = __devexit_p(sgio2_buttons_remove),
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.remove = __devexit_p(sgi_buttons_remove),
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.driver = {
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.driver = {
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.name = "sgio2btns",
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.name = "sgibtns",
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.owner = THIS_MODULE,
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.owner = THIS_MODULE,
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},
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},
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};
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};
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static int __init sgio2_buttons_init(void)
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static int __init sgi_buttons_init(void)
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{
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{
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return platform_driver_register(&sgio2_buttons_driver);
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return platform_driver_register(&sgi_buttons_driver);
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}
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}
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static void __exit sgio2_buttons_exit(void)
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static void __exit sgi_buttons_exit(void)
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{
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{
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platform_driver_unregister(&sgio2_buttons_driver);
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platform_driver_unregister(&sgi_buttons_driver);
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}
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}
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module_init(sgio2_buttons_init);
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module_init(sgi_buttons_init);
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module_exit(sgio2_buttons_exit);
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module_exit(sgi_buttons_exit);
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