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[s3c24xx] Replace gta02 keyboard driver with generic gpio keyboard.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17070 3c298f89-4303-0410-b956-a3cf2f4a3e73
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lars
parent
2e4bbac449
commit
cd38e69528
@ -39,6 +39,7 @@
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#include <linux/spi/spi_bitbang.h>
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#include <linux/mmc/host.h>
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#include <linux/leds.h>
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#include <linux/gpio_keys.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/nand.h>
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@ -1273,40 +1274,38 @@ struct platform_device gta02_led_dev = {
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},
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};
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static struct resource gta02_button_resources[] = {
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[0] = {
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.start = GTA02_GPIO_AUX_KEY,
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.end = GTA02_GPIO_AUX_KEY,
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static struct gpio_keys_button gta02_buttons[] = {
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{
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.gpio = GTA02_GPIO_AUX_KEY,
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.code = KEY_PHONE,
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.desc = "Aux",
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.type = EV_KEY,
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},
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[1] = {
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.start = GTA02_GPIO_HOLD_KEY,
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.end = GTA02_GPIO_HOLD_KEY,
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},
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[2] = {
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.start = GTA02_GPIO_JACK_INSERT,
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.end = GTA02_GPIO_JACK_INSERT,
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},
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[3] = {
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.start = 0,
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.end = 0,
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},
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[4] = {
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.start = 0,
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.end = 0,
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{
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.gpio = GTA02_GPIO_HOLD_KEY,
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.code = KEY_PAUSE,
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.desc = "Hold",
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.type = EV_KEY,
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},
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};
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static struct gpio_keys_platform_data gta02_buttons_pdata = {
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.buttons = gta02_buttons,
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.nbuttons = ARRAY_SIZE(gta02_buttons),
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};
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static struct platform_device gta02_button_dev = {
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.name = "gta02-button",
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.num_resources = ARRAY_SIZE(gta02_button_resources),
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.resource = gta02_button_resources,
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = >a02_buttons_pdata,
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},
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};
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static struct platform_device gta02_pm_usbhost_dev = {
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.name = "gta02-pm-host",
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};
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/* USB */
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static struct s3c2410_hcd_info gta02_usb_info = {
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.port[0] = {
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@ -1,283 +0,0 @@
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/*
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* Keyboard driver for Openmoko Freerunner GSM phone
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*
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* (C) 2006-2007 by Openmoko, Inc.
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* Author: Harald Welte <laforge@openmoko.org>
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* All rights reserved.
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*
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* inspired by corkgbd.c by Richard Purdie
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/delay.h>
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#include <linux/platform_device.h>
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#include <linux/init.h>
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#include <linux/input.h>
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#include <linux/interrupt.h>
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#include <linux/jiffies.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <mach/gpio.h>
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#include <asm/mach-types.h>
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#ifdef CONFIG_PM
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extern int global_inside_suspend;
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#else
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#define global_inside_suspend 0
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#endif
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struct gta02kbd {
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struct platform_device *pdev;
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struct input_dev *input;
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int aux_state;
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};
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enum keys {
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GTA02_KEY_AUX,
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GTA02_KEY_HOLD,
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};
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struct gta02kbd_key {
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const char * name;
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irqreturn_t (*isr)(int irq, void *dev_id);
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int irq;
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int input_key;
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};
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static irqreturn_t gta02kbd_aux_irq(int irq, void *dev_id);
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static irqreturn_t gta02kbd_default_key_irq(int irq, void *dev_id);
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static struct gta02kbd_key keys[] = {
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[GTA02_KEY_AUX] = {
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.name = "GTA02 AUX button",
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.isr = gta02kbd_aux_irq,
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.input_key = KEY_PHONE,
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},
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[GTA02_KEY_HOLD] = {
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.name = "GTA02 HOLD button",
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.isr = gta02kbd_default_key_irq,
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.input_key = KEY_PAUSE,
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},
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};
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/* This timer section filters AUX button IRQ bouncing */
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static void aux_key_timer_f(unsigned long data);
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static struct timer_list aux_key_timer =
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TIMER_INITIALIZER(aux_key_timer_f, 0, 0);
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#define AUX_TIMER_TIMEOUT (HZ >> 7)
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#define AUX_TIMER_ALLOWED_NOOP 2
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#define AUX_TIMER_CONSECUTIVE_EVENTS 5
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struct gta02kbd *timer_kbd;
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static void aux_key_timer_f(unsigned long data)
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{
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static int noop_counter;
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static int last_key = -1;
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static int last_count;
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int key_pressed;
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key_pressed =
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gpio_get_value(timer_kbd->pdev->resource[GTA02_KEY_AUX].start);
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if (likely(key_pressed == last_key))
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last_count++;
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else {
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last_count = 1;
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last_key = key_pressed;
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}
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if (unlikely(last_count >= AUX_TIMER_CONSECUTIVE_EVENTS)) {
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if (timer_kbd->aux_state != last_key) {
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input_report_key(timer_kbd->input, KEY_PHONE, last_key);
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input_sync(timer_kbd->input);
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timer_kbd->aux_state = last_key;
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noop_counter = 0;
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}
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last_count = 0;
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if (unlikely(++noop_counter > AUX_TIMER_ALLOWED_NOOP)) {
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noop_counter = 0;
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return;
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}
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}
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mod_timer(&aux_key_timer, jiffies + AUX_TIMER_TIMEOUT);
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}
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static irqreturn_t gta02kbd_aux_irq(int irq, void *dev)
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{
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mod_timer(&aux_key_timer, jiffies + AUX_TIMER_TIMEOUT);
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return IRQ_HANDLED;
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}
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static irqreturn_t gta02kbd_default_key_irq(int irq, void *dev_id)
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{
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struct gta02kbd *kbd = dev_id;
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int n;
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for (n = 0; n < ARRAY_SIZE(keys); n++) {
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if (irq != keys[n].irq)
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continue;
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input_report_key(kbd->input, keys[n].input_key,
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gpio_get_value(kbd->pdev->resource[n].start));
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input_sync(kbd->input);
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}
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return IRQ_HANDLED;
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}
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#ifdef CONFIG_PM
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static int gta02kbd_suspend(struct platform_device *dev, pm_message_t state)
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{
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disable_irq(keys[GTA02_KEY_AUX].irq);
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del_timer_sync(&aux_key_timer);
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return 0;
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}
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static int gta02kbd_resume(struct platform_device *dev)
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{
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enable_irq(keys[GTA02_KEY_AUX].irq);
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return 0;
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}
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#else
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#define gta02kbd_suspend NULL
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#define gta02kbd_resume NULL
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#endif
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static int gta02kbd_probe(struct platform_device *pdev)
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{
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struct gta02kbd *gta02kbd;
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struct input_dev *input_dev;
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int rc;
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int irq;
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int n;
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if (pdev->resource[0].flags != 0)
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return -EINVAL;
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gta02kbd = kzalloc(sizeof(struct gta02kbd), GFP_KERNEL);
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input_dev = input_allocate_device();
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if (!gta02kbd || !input_dev) {
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kfree(gta02kbd);
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input_free_device(input_dev);
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return -ENOMEM;
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}
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gta02kbd->pdev = pdev;
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timer_kbd = gta02kbd;
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platform_set_drvdata(pdev, gta02kbd);
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gta02kbd->input = input_dev;
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input_dev->name = "GTA02 Buttons";
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input_dev->phys = "gta02kbd/input0";
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input_dev->id.bustype = BUS_HOST;
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input_dev->id.vendor = 0x0001;
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input_dev->id.product = 0x0001;
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input_dev->id.version = 0x0100;
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input_dev->dev.parent = &pdev->dev;
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input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_SW);
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set_bit(KEY_PHONE, input_dev->keybit);
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set_bit(KEY_PAUSE, input_dev->keybit);
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rc = input_register_device(gta02kbd->input);
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if (rc)
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goto out_register;
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/* register GPIO IRQs */
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for(n = 0; n < min(pdev->num_resources, ARRAY_SIZE(keys)); n++) {
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if (!pdev->resource[0].start)
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continue;
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irq = gpio_to_irq(pdev->resource[n].start);
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if (irq < 0)
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continue;
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if (request_irq(irq, keys[n].isr, IRQF_DISABLED |
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IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
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keys[n].name, gta02kbd)) {
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dev_err(&pdev->dev, "Can't get IRQ %u\n", irq);
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/* unwind any irq registrations and fail */
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while (n > 0) {
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n--;
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free_irq(gpio_to_irq(pdev->resource[n].start),
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gta02kbd);
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}
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goto out_device_create;
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}
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keys[n].irq = irq;
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}
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return 0;
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out_device_create:
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input_unregister_device(gta02kbd->input);
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out_register:
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input_free_device(gta02kbd->input);
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platform_set_drvdata(pdev, NULL);
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kfree(gta02kbd);
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return -ENODEV;
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}
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static int gta02kbd_remove(struct platform_device *pdev)
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{
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struct gta02kbd *gta02kbd = platform_get_drvdata(pdev);
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free_irq(gpio_to_irq(pdev->resource[1].start), gta02kbd);
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free_irq(gpio_to_irq(pdev->resource[0].start), gta02kbd);
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input_unregister_device(gta02kbd->input);
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input_free_device(gta02kbd->input);
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platform_set_drvdata(pdev, NULL);
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kfree(gta02kbd);
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return 0;
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}
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static struct platform_driver gta02kbd_driver = {
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.probe = gta02kbd_probe,
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.remove = gta02kbd_remove,
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.suspend = gta02kbd_suspend,
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.resume = gta02kbd_resume,
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.driver = {
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.name = "gta02-button",
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},
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};
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static int __devinit gta02kbd_init(void)
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{
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return platform_driver_register(>a02kbd_driver);
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}
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static void __exit gta02kbd_exit(void)
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{
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platform_driver_unregister(>a02kbd_driver);
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}
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module_init(gta02kbd_init);
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module_exit(gta02kbd_exit);
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MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
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MODULE_DESCRIPTION("Openmoko Freerunner buttons input driver");
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MODULE_LICENSE("GPL");
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@ -1,28 +0,0 @@
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--- a/drivers/input/keyboard/Kconfig
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+++ b/drivers/input/keyboard/Kconfig
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@@ -332,4 +332,15 @@ config KEYBOARD_SH_KEYSC
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To compile this driver as a module, choose M here: the
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module will be called sh_keysc.
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+config KEYBOARD_GTA02
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+ tristate "Openmoko Freerunner buttons"
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+ depends on MACH_NEO1973
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+ default y
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+ help
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+ Say Y here to enable the buttons on the Openmoko Freerunner
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+ GSM phone.
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+
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+ To compile this driver as a module, choose M here: the
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+ module will be called gta02kbd.
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+
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endif
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--- a/drivers/input/keyboard/Makefile
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+++ b/drivers/input/keyboard/Makefile
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@@ -14,6 +14,7 @@ obj-$(CONFIG_KEYBOARD_LOCOMO) += locomo
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obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o
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obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
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obj-$(CONFIG_KEYBOARD_CORGI) += corgikbd.o
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+obj-$(CONFIG_KEYBOARD_GTA02) += gta02kbd.o
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obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o
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obj-$(CONFIG_KEYBOARD_TOSA) += tosakbd.o
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obj-$(CONFIG_KEYBOARD_HIL) += hil_kbd.o
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