Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754042AbZAESQi (ORCPT ); Mon, 5 Jan 2009 13:16:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753651AbZAESPv (ORCPT ); Mon, 5 Jan 2009 13:15:51 -0500 Received: from mail.openmoko.org ([88.198.124.205]:37798 "EHLO mail.openmoko.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754868AbZAESPu (ORCPT ); Mon, 5 Jan 2009 13:15:50 -0500 Subject: [PATCH V3 6/7] input: PCF50633 input driver To: linux-kernel@vger.kernel.org From: Balaji Rao Cc: Samuel Ortiz , Dmitry Torokhov , Andy Green Date: Mon, 05 Jan 2009 23:45:25 +0530 Message-ID: <20090105181525.7559.21018.stgit@fedora.yogi> In-Reply-To: <20090105181242.7559.30087.stgit@fedora.yogi> References: <20090105181242.7559.30087.stgit@fedora.yogi> User-Agent: StGit/0.14.3.292.gb975.dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5310 Lines: 180 Signed-off-by: Balaji Rao Cc: Andy Green Cc: Dmitry Torokhov Acked-by: Dmitry Torokhov --- drivers/input/misc/Kconfig | 7 ++ drivers/input/misc/Makefile | 1 drivers/input/misc/pcf50633-input.c | 132 +++++++++++++++++++++++++++++++++++ 3 files changed, 140 insertions(+), 0 deletions(-) create mode 100644 drivers/input/misc/pcf50633-input.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 199055d..67e5553 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -220,4 +220,11 @@ config HP_SDC_RTC Say Y here if you want to support the built-in real time clock of the HP SDC controller. +config INPUT_PCF50633_PMU + tristate "PCF50633 PMU events" + depends on MFD_PCF50633 + help + Say Y to include support for delivering PMU events via input + layer on NXP PCF50633. + endif diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index d7db2ae..bb62e6e 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -21,3 +21,4 @@ obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o obj-$(CONFIG_INPUT_UINPUT) += uinput.o obj-$(CONFIG_INPUT_APANEL) += apanel.o obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o +obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o diff --git a/drivers/input/misc/pcf50633-input.c b/drivers/input/misc/pcf50633-input.c new file mode 100644 index 0000000..039dcb0 --- /dev/null +++ b/drivers/input/misc/pcf50633-input.c @@ -0,0 +1,132 @@ +/* NXP PCF50633 Input Driver + * + * (C) 2006-2008 by Openmoko, Inc. + * Author: Balaji Rao + * All rights reserved. + * + * Broken down from monstrous PCF50633 driver mainly by + * Harald Welte, Andy Green and Werner Almesberger + * + * 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. + * + */ + +#include +#include +#include +#include +#include +#include + +#include + +#define PCF50633_OOCSTAT_ONKEY 0x01 +#define PCF50633_REG_OOCSTAT 0x12 +#define PCF50633_REG_OOCMODE 0x10 + +struct pcf50633_input { + struct pcf50633 *pcf; + struct input_dev *input_dev; +}; + +static void +pcf50633_input_irq(int irq, void *data) +{ + struct pcf50633_input *input; + int onkey_released; + + input = data; + + /* We report only one event depending on the key press status */ + onkey_released = pcf50633_reg_read(input->pcf, PCF50633_REG_OOCSTAT) + & PCF50633_OOCSTAT_ONKEY; + + if (irq == PCF50633_IRQ_ONKEYF && !onkey_released) + input_report_key(input->input_dev, KEY_POWER, 1); + else if (irq == PCF50633_IRQ_ONKEYR && onkey_released) + input_report_key(input->input_dev, KEY_POWER, 0); + + input_sync(input->input_dev); +} + +static int __devinit pcf50633_input_probe(struct platform_device *pdev) +{ + struct pcf50633_input *input; + struct pcf50633_subdev_pdata *pdata = pdev->dev.platform_data; + struct input_dev *input_dev; + int ret; + + + input = kzalloc(sizeof(*input), GFP_KERNEL); + if (!input) + return -ENOMEM; + + input_dev = input_allocate_device(); + if (!input_dev) { + kfree(input); + return -ENOMEM; + } + + platform_set_drvdata(pdev, input); + input->pcf = pdata->pcf; + input->input_dev = input_dev; + + input_dev->name = "PCF50633 PMU events"; + input_dev->id.bustype = BUS_I2C; + input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_PWR); + set_bit(KEY_POWER, input_dev->keybit); + + ret = input_register_device(input_dev); + if (ret) { + input_free_device(input_dev); + kfree(input); + return ret; + } + pcf50633_register_irq(pdata->pcf, PCF50633_IRQ_ONKEYR, + pcf50633_input_irq, input); + pcf50633_register_irq(pdata->pcf, PCF50633_IRQ_ONKEYF, + pcf50633_input_irq, input); + + return 0; +} + +static int __devexit pcf50633_input_remove(struct platform_device *pdev) +{ + struct pcf50633_input *input = platform_get_drvdata(pdev); + + pcf50633_free_irq(input->pcf, PCF50633_IRQ_ONKEYR); + pcf50633_free_irq(input->pcf, PCF50633_IRQ_ONKEYF); + + input_unregister_device(input->input_dev); + kfree(input); + + return 0; +} + +static struct platform_driver pcf50633_input_driver = { + .driver = { + .name = "pcf50633-input", + }, + .probe = pcf50633_input_probe, + .remove = __devexit_p(pcf50633_input_remove), +}; + +static int __init pcf50633_input_init(void) +{ + return platform_driver_register(&pcf50633_input_driver); +} +module_init(pcf50633_input_init); + +static void __exit pcf50633_input_exit(void) +{ + platform_driver_unregister(&pcf50633_input_driver); +} +module_exit(pcf50633_input_exit); + +MODULE_AUTHOR("Balaji Rao "); +MODULE_DESCRIPTION("PCF50633 input driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:pcf50633-input"); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/