From 48ad88b1f2caf87e3d02c34e1d7de2ce68370e27 Mon Sep 17 00:00:00 2001 From: Thomas Bogendoerfer Date: Sat, 19 Jul 2008 00:14:26 -0400 Subject: 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 Signed-off-by: Dmitry Torokhov --- drivers/input/misc/Kconfig | 10 +-- drivers/input/misc/Makefile | 2 +- drivers/input/misc/sgi_btns.c | 178 ++++++++++++++++++++++++++++++++++++++++ drivers/input/misc/sgio2_btns.c | 156 ----------------------------------- 4 files changed, 184 insertions(+), 162 deletions(-) create mode 100644 drivers/input/misc/sgi_btns.c delete mode 100644 drivers/input/misc/sgio2_btns.c (limited to 'drivers/input/misc') diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index e33d7cbcb1d..e99b7882f38 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -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" diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 0e274f19bcb..f48009b5222 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -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 diff --git a/drivers/input/misc/sgi_btns.c b/drivers/input/misc/sgi_btns.c new file mode 100644 index 00000000000..ce238f59b3c --- /dev/null +++ b/drivers/input/misc/sgi_btns.c @@ -0,0 +1,178 @@ +/* + * SGI Volume Button interface driver + * + * Copyright (C) 2008 Thomas Bogendoerfer + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include +#include +#include +#include +#include + +#ifdef CONFIG_SGI_IP22 +#include + +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 + +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 sgi_map[] = { + KEY_VOLUMEDOWN, + KEY_VOLUMEUP +}; + +struct buttons_dev { + struct input_polled_dev *poll_dev; + 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; + u8 status; + int i; + + status = button_status(); + + for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) { + if (status & (1U << i)) { + if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) { + input_event(input, EV_MSC, MSC_SCAN, i); + input_report_key(input, bdev->keymap[i], 1); + input_sync(input); + } + } else { + if (bdev->count[i] >= BUTTONS_COUNT_THRESHOLD) { + input_event(input, EV_MSC, MSC_SCAN, i); + input_report_key(input, bdev->keymap[i], 0); + input_sync(input); + } + bdev->count[i] = 0; + } + } +} + +static int __devinit sgi_buttons_probe(struct platform_device *pdev) +{ + struct buttons_dev *bdev; + struct input_polled_dev *poll_dev; + struct input_dev *input; + int error, i; + + bdev = kzalloc(sizeof(struct buttons_dev), GFP_KERNEL); + poll_dev = input_allocate_polled_device(); + if (!bdev || !poll_dev) { + error = -ENOMEM; + goto err_free_mem; + } + + 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 buttons"; + input->phys = "sgi/input0"; + input->id.bustype = BUS_HOST; + input->dev.parent = &pdev->dev; + + input->keycode = bdev->keymap; + input->keycodemax = ARRAY_SIZE(bdev->keymap); + input->keycodesize = sizeof(unsigned short); + + input_set_capability(input, EV_MSC, MSC_SCAN); + __set_bit(EV_KEY, input->evbit); + for (i = 0; i < ARRAY_SIZE(sgi_map); i++) + __set_bit(bdev->keymap[i], input->keybit); + __clear_bit(KEY_RESERVED, input->keybit); + + bdev->poll_dev = poll_dev; + dev_set_drvdata(&pdev->dev, bdev); + + error = input_register_polled_device(poll_dev); + if (error) + goto err_free_mem; + + return 0; + + err_free_mem: + input_free_polled_device(poll_dev); + kfree(bdev); + dev_set_drvdata(&pdev->dev, NULL); + return error; +} + +static int __devexit sgi_buttons_remove(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct buttons_dev *bdev = dev_get_drvdata(dev); + + input_unregister_polled_device(bdev->poll_dev); + input_free_polled_device(bdev->poll_dev); + kfree(bdev); + dev_set_drvdata(dev, NULL); + + return 0; +} + +static struct platform_driver sgi_buttons_driver = { + .probe = sgi_buttons_probe, + .remove = __devexit_p(sgi_buttons_remove), + .driver = { + .name = "sgibtns", + .owner = THIS_MODULE, + }, +}; + +static int __init sgi_buttons_init(void) +{ + return platform_driver_register(&sgi_buttons_driver); +} + +static void __exit sgi_buttons_exit(void) +{ + platform_driver_unregister(&sgi_buttons_driver); +} + +module_init(sgi_buttons_init); +module_exit(sgi_buttons_exit); diff --git a/drivers/input/misc/sgio2_btns.c b/drivers/input/misc/sgio2_btns.c deleted file mode 100644 index b1ab43d903d..00000000000 --- a/drivers/input/misc/sgio2_btns.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * SGI O2 Volume Button interface driver - * - * Copyright (C) 2008 Thomas Bogendoerfer - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ -#include -#include -#include -#include -#include - -#include - -#define BUTTONS_POLL_INTERVAL 30 /* msec */ -#define BUTTONS_COUNT_THRESHOLD 3 - -static const unsigned short sgio2_map[] = { - KEY_VOLUMEUP, - KEY_VOLUMEDOWN -}; - -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; -}; - -static void handle_buttons(struct input_polled_dev *dev) -{ - struct buttons_dev *bdev = dev->private; - struct input_dev *input = dev->input; - u64 status; - int i; - - status = (readq(&mace->perif.audio.control) >> 23) & 3; - - 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); - input_sync(input); - } - } else { - if (bdev->count[i] >= BUTTONS_COUNT_THRESHOLD) { - input_event(input, EV_MSC, MSC_SCAN, i); - input_report_key(input, bdev->keymap[i], 0); - input_sync(input); - } - bdev->count[i] = 0; - } - } -} - -static int __devinit sgio2_buttons_probe(struct platform_device *pdev) -{ - struct buttons_dev *bdev; - struct input_polled_dev *poll_dev; - struct input_dev *input; - int error, i; - - bdev = kzalloc(sizeof(struct buttons_dev), GFP_KERNEL); - poll_dev = input_allocate_polled_device(); - if (!bdev || !poll_dev) { - error = -ENOMEM; - goto err_free_mem; - } - - memcpy(bdev->keymap, sgio2_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->id.bustype = BUS_HOST; - input->dev.parent = &pdev->dev; - - input->keycode = bdev->keymap; - input->keycodemax = ARRAY_SIZE(bdev->keymap); - input->keycodesize = sizeof(unsigned short); - - input_set_capability(input, EV_MSC, MSC_SCAN); - __set_bit(EV_KEY, input->evbit); - for (i = 0; i < ARRAY_SIZE(sgio2_map); i++) - __set_bit(bdev->keymap[i], input->keybit); - __clear_bit(KEY_RESERVED, input->keybit); - - bdev->poll_dev = poll_dev; - dev_set_drvdata(&pdev->dev, bdev); - - error = input_register_polled_device(poll_dev); - if (error) - goto err_free_mem; - - return 0; - - err_free_mem: - input_free_polled_device(poll_dev); - kfree(bdev); - dev_set_drvdata(&pdev->dev, NULL); - return error; -} - -static int __devexit sgio2_buttons_remove(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct buttons_dev *bdev = dev_get_drvdata(dev); - - input_unregister_polled_device(bdev->poll_dev); - input_free_polled_device(bdev->poll_dev); - kfree(bdev); - dev_set_drvdata(dev, NULL); - - return 0; -} - -static struct platform_driver sgio2_buttons_driver = { - .probe = sgio2_buttons_probe, - .remove = __devexit_p(sgio2_buttons_remove), - .driver = { - .name = "sgio2btns", - .owner = THIS_MODULE, - }, -}; - -static int __init sgio2_buttons_init(void) -{ - return platform_driver_register(&sgio2_buttons_driver); -} - -static void __exit sgio2_buttons_exit(void) -{ - platform_driver_unregister(&sgio2_buttons_driver); -} - -module_init(sgio2_buttons_init); -module_exit(sgio2_buttons_exit); -- cgit v1.2.3-70-g09d2