From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Ribeiro Subject: [PATCH] PCAP misc input driver (for 2.6.32) Date: Sat, 27 Jun 2009 14:09:52 -0300 Message-ID: <1246122592.3727.20.camel@brutus> Mime-Version: 1.0 Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-ggtxgUtnlns3J6H7qiNa" Return-path: Received: from mail-qy0-f193.google.com ([209.85.221.193]:47585 "EHLO mail-qy0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752610AbZF0RKK (ORCPT ); Sat, 27 Jun 2009 13:10:10 -0400 Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Dmitry Torokhov , linux-input@vger.kernel.org Cc: inux-kernel , openezx-devel , Samuel Ortiz , Ilya Petrov --=-ggtxgUtnlns3J6H7qiNa Content-Type: text/plain Content-Transfer-Encoding: quoted-printable This is a driver for misc input events for the PCAP2 PMIC, it handles the power button, headphone insertion/removal and the headphone button. Signed-off-by: Ilya Petrov Signed-off-by: Daniel Ribeiro --- drivers/input/keyboard/Kconfig | 7 ++ drivers/input/keyboard/Makefile | 1 + drivers/input/keyboard/pcap_keys.c | 152 ++++++++++++++++++++++++++++++++= ++++ 3 files changed, 160 insertions(+), 0 deletions(-) diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfi= g index 9d8f796..ea512b0 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -353,4 +353,11 @@ config KEYBOARD_EP93XX To compile this driver as a module, choose M here: the module will be called ep93xx_keypad. =20 +config KEYBOARD_PCAP + tristate "Motorola EZX PCAP events" + depends on EZX_PCAP + help + Say Y here if you want to use power key and jack events + on Motorola EZX 2nd generation phones + endif diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makef= ile index 156b647..06b77dd 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -30,3 +30,4 @@ obj-$(CONFIG_KEYBOARD_MAPLE) +=3D maple_keyb.o obj-$(CONFIG_KEYBOARD_BFIN) +=3D bf54x-keys.o obj-$(CONFIG_KEYBOARD_SH_KEYSC) +=3D sh_keysc.o obj-$(CONFIG_KEYBOARD_EP93XX) +=3D ep93xx_keypad.o +obj-$(CONFIG_KEYBOARD_PCAP) +=3D pcap_keys.o diff --git a/drivers/input/keyboard/pcap_keys.c b/drivers/input/keyboard/pc= ap_keys.c new file mode 100644 index 0000000..8a9b533 --- /dev/null +++ b/drivers/input/keyboard/pcap_keys.c @@ -0,0 +1,152 @@ +/* + * Input driver for PCAP events: + * * Power key + * * Jack plug/unplug + * * Headphone button + * + * Copyright (c) 2008,2009 Ilya Petrov + * + * 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 +#include +#include +#include +#include +#include + +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 =3D _pcap_keys; + int pirq =3D irq_to_pcap(pcap_keys->pcap, irq); + u32 pstat; + + ezx_pcap_read(pcap_keys->pcap, PCAP_REG_PSTAT, &pstat); + pstat &=3D 1 << pirq; + + switch (pirq) { + case PCAP_IRQ_ONOFF: + input_report_key(pcap_keys->input, KEY_POWER, !pstat); + break; + case PCAP_IRQ_HS: + input_report_switch(pcap_keys->input, + SW_HEADPHONE_INSERT, !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 __init pcap_keys_probe(struct platform_device *pdev) +{ + int err =3D -ENOMEM; + struct pcap_keys *pcap_keys; + + pcap_keys =3D kmalloc(sizeof(struct pcap_keys), GFP_KERNEL); + if (!pcap_keys) + return err; + + pcap_keys->pcap =3D platform_get_drvdata(pdev); + + pcap_keys->input =3D input_allocate_device(); + if (!pcap_keys->input) + goto fail; + + platform_set_drvdata(pdev, pcap_keys); + pcap_keys->input->name =3D pdev->name; + pcap_keys->input->phys =3D "pcap-keys/input0"; + pcap_keys->input->dev.parent =3D &pdev->dev; + + pcap_keys->input->evbit[0] =3D BIT_MASK(EV_KEY) | BIT_MASK(EV_SW); + set_bit(KEY_POWER, pcap_keys->input->keybit); + set_bit(SW_HEADPHONE_INSERT, pcap_keys->input->swbit); + set_bit(KEY_HP, pcap_keys->input->keybit); + + err =3D request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), + pcap_keys_handler, 0, "Power key", pcap_keys); + if (err) + goto fail_dev; + + err =3D request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_HS), + pcap_keys_handler, 0, "Headphone jack", pcap_keys); + if (err) + goto fail_pwrkey; + + err =3D request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC), + pcap_keys_handler, 0, "MIC jack/button", pcap_keys); + if (err) + goto fail_jack; + + err =3D input_register_device(pcap_keys->input); + if (err) + goto fail_mic; + + return 0; + +fail_mic: + free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC), pcap_keys); +fail_jack: + free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_HS), pcap_keys); +fail_pwrkey: + free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), pcap_keys); +fail_dev: + input_free_device(pcap_keys->input); +fail: + kfree(pcap_keys); + return err; +} + +static int pcap_keys_remove(struct platform_device *pdev) +{ + struct pcap_keys *pcap_keys =3D 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_HS), 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 =3D { + .probe =3D pcap_keys_probe, + .remove =3D pcap_keys_remove, + .driver =3D { + .name =3D "pcap-keys", + .owner =3D 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 "); +MODULE_LICENSE("GPL"); --=20 tg: (22f99ae..) ezx/pcap_keys (depends on: ezx/local/pcap) --=20 Daniel Ribeiro --=-ggtxgUtnlns3J6H7qiNa Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Esta =?ISO-8859-1?Q?=E9?= uma parte de mensagem assinada digitalmente -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEABECAAYFAkpGUmAACgkQw3OYl0G0liSIjQCfTKItSPbuzLfyBzjHuk24w7vt byoAoJYg7aM+ro0cjyg3AZeIoC5qqMgo =hDwB -----END PGP SIGNATURE----- --=-ggtxgUtnlns3J6H7qiNa--