Hi Daniel. On Fri, Aug 07, 2009 at 10:54:16PM +0200, Daniel Ribeiro wrote: > This is a driver for misc input events for the PCAP2 PMIC, it handles > the Power key and the Headphone button. Applied, thanks. Cheers, Samuel. > Signed-off-by: Daniel Ribeiro <drwyrm@xxxxxxxxx> > Signed-off-by: Ilya Petrov <ilya.muromec@xxxxxxxxx> > Signed-off-by: Antonio Ospite <ospite@xxxxxxxxxxxxxxxxx> > > --- > > Changes since v2: > * Get pcap data from the parent device, don't abuse > platform device drvdata > > pcap_keys v2 is here: http://patchwork.kernel.org/patch/38863/ > > drivers/input/misc/Kconfig | 11 +++ > drivers/input/misc/Makefile | 1 + > drivers/input/misc/pcap_keys.c | 144 ++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 156 insertions(+), 0 deletions(-) > > diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig > index 1acfa3a..b9cbb5e 100644 > --- a/drivers/input/misc/Kconfig > +++ b/drivers/input/misc/Kconfig > @@ -269,4 +269,15 @@ config INPUT_DM355EVM > > To compile this driver as a module, choose M here: the > module will be called dm355evm_keys. > + > +config INPUT_PCAP > + tristate "Motorola EZX PCAP misc input events" > + depends on EZX_PCAP > + help > + Say Y here if you want to use Power key and Headphone button > + on Motorola EZX phones. > + > + To compile this driver as a module, choose M here: the > + module will be called pcap_keys. > + > endif > diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile > index 0d979fd..679bae3 100644 > --- a/drivers/input/misc/Makefile > +++ b/drivers/input/misc/Makefile > @@ -26,3 +26,4 @@ obj-$(CONFIG_INPUT_TWL4030_PWRBUTTON) += twl4030-pwrbutton.o > obj-$(CONFIG_INPUT_UINPUT) += uinput.o > obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o > obj-$(CONFIG_INPUT_YEALINK) += yealink.o > +obj-$(CONFIG_INPUT_PCAP) += pcap_keys.o > diff --git a/drivers/input/misc/pcap_keys.c b/drivers/input/misc/pcap_keys.c > new file mode 100644 > index 0000000..7ea9693 > --- /dev/null > +++ b/drivers/input/misc/pcap_keys.c > @@ -0,0 +1,144 @@ > +/* > + * Input driver for PCAP events: > + * * Power key > + * * Headphone button > + * > + * Copyright (c) 2008,2009 Ilya Petrov <ilya.muromec@xxxxxxxxx> > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 as > + * published by the Free Software Foundation. > + * > + */ > + > +#include <linux/module.h> > +#include <linux/init.h> > +#include <linux/interrupt.h> > +#include <linux/platform_device.h> > +#include <linux/input.h> > +#include <linux/mfd/ezx-pcap.h> > + > +struct pcap_keys { > + struct pcap_chip *pcap; > + struct input_dev *input; > +}; > + > +/* PCAP2 interrupts us on keypress */ > +static irqreturn_t pcap_keys_handler(int irq, void *_pcap_keys) > +{ > + struct pcap_keys *pcap_keys = _pcap_keys; > + int pirq = irq_to_pcap(pcap_keys->pcap, irq); > + u32 pstat; > + > + ezx_pcap_read(pcap_keys->pcap, PCAP_REG_PSTAT, &pstat); > + pstat &= 1 << pirq; > + > + switch (pirq) { > + case PCAP_IRQ_ONOFF: > + input_report_key(pcap_keys->input, KEY_POWER, !pstat); > + break; > + case PCAP_IRQ_MIC: > + input_report_key(pcap_keys->input, KEY_HP, !pstat); > + break; > + } > + > + input_sync(pcap_keys->input); > + > + return IRQ_HANDLED; > +} > + > +static int __devinit pcap_keys_probe(struct platform_device *pdev) > +{ > + int err = -ENOMEM; > + struct pcap_keys *pcap_keys; > + struct input_dev *input_dev; > + > + pcap_keys = kmalloc(sizeof(struct pcap_keys), GFP_KERNEL); > + if (!pcap_keys) > + return err; > + > + pcap_keys->pcap = dev_get_drvdata(pdev->dev.parent); > + > + input_dev = input_allocate_device(); > + if (!input_dev) > + goto fail; > + > + pcap_keys->input = input_dev; > + > + platform_set_drvdata(pdev, pcap_keys); > + input_dev->name = pdev->name; > + input_dev->phys = "pcap-keys/input0"; > + input_dev->id.bustype = BUS_HOST; > + input_dev->dev.parent = &pdev->dev; > + > + __set_bit(EV_KEY, input_dev->evbit); > + __set_bit(KEY_POWER, input_dev->keybit); > + __set_bit(KEY_HP, input_dev->keybit); > + > + err = input_register_device(input_dev); > + if (err) > + goto fail_allocate; > + > + err = request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), > + pcap_keys_handler, 0, "Power key", pcap_keys); > + if (err) > + goto fail_register; > + > + err = request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC), > + pcap_keys_handler, 0, "Headphone button", pcap_keys); > + if (err) > + goto fail_pwrkey; > + > + return 0; > + > +fail_pwrkey: > + free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), pcap_keys); > +fail_register: > + input_unregister_device(input_dev); > + goto fail; > +fail_allocate: > + input_free_device(input_dev); > +fail: > + kfree(pcap_keys); > + return err; > +} > + > +static int __devexit pcap_keys_remove(struct platform_device *pdev) > +{ > + struct pcap_keys *pcap_keys = platform_get_drvdata(pdev); > + > + free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), pcap_keys); > + free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC), pcap_keys); > + > + input_unregister_device(pcap_keys->input); > + kfree(pcap_keys); > + > + return 0; > +} > + > +static struct platform_driver pcap_keys_device_driver = { > + .probe = pcap_keys_probe, > + .remove = __devexit_p(pcap_keys_remove), > + .driver = { > + .name = "pcap-keys", > + .owner = THIS_MODULE, > + } > +}; > + > +static int __init pcap_keys_init(void) > +{ > + return platform_driver_register(&pcap_keys_device_driver); > +}; > + > +static void __exit pcap_keys_exit(void) > +{ > + platform_driver_unregister(&pcap_keys_device_driver); > +}; > + > +module_init(pcap_keys_init); > +module_exit(pcap_keys_exit); > + > +MODULE_DESCRIPTION("Motorola PCAP2 input events driver"); > +MODULE_AUTHOR("Ilya Petrov <ilya.muromec@xxxxxxxxx>"); > +MODULE_LICENSE("GPL"); > +MODULE_ALIAS("platform:pcap_keys"); > -- > tg: (9097083..) ezx/pcap_keys (depends on: ezx/local/pcap) -- Intel Open Source Technology Centre http://oss.intel.com/ -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
