+++ /dev/null
-From 226fd290dc2d052e5cd437cc8464e1424e7ebf2c Mon Sep 17 00:00:00 2001
-From: Brian Swetland <swetland@google.com>
-Date: Sun, 13 Aug 2006 21:50:14 +0700
-Subject: [PATCH 123/134] [ARM] goldfish: events: Add event driver for goldfish
-
-this device is a direct pipe from "hardware" to the input
-event subsystem, allowing us to avoid having to route
-"keypad" style events through an AT keyboard driver (gross!)
-
-Signed-off-by: Mike A. Chan <mikechan@google.com>
----
- drivers/input/keyboard/Kconfig | 5 +
- drivers/input/keyboard/Makefile | 1 +
- drivers/input/keyboard/goldfish_events.c | 190 ++++++++++++++++++++++++++++++
- 3 files changed, 196 insertions(+), 0 deletions(-)
- create mode 100644 drivers/input/keyboard/goldfish_events.c
-
---- a/drivers/input/keyboard/Kconfig
-+++ b/drivers/input/keyboard/Kconfig
-@@ -304,6 +304,11 @@ config KEYBOARD_GPIO
- To compile this driver as a module, choose M here: the
- module will be called gpio-keys.
-
-+config KEYBOARD_GOLDFISH_EVENTS
-+ tristate "Generic Input Event device for Goldfish"
-+ help
-+ no help
-+
- config KEYBOARD_MAPLE
- tristate "Maple bus keyboard"
- depends on SH_DREAMCAST && MAPLE
---- a/drivers/input/keyboard/Makefile
-+++ b/drivers/input/keyboard/Makefile
-@@ -23,6 +23,7 @@ obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x
- obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o
- obj-$(CONFIG_KEYBOARD_AAED2000) += aaed2000_kbd.o
- obj-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o
-+obj-$(CONFIG_KEYBOARD_GOLDFISH_EVENTS) += goldfish_events.o
- obj-$(CONFIG_KEYBOARD_HP6XX) += jornada680_kbd.o
- obj-$(CONFIG_KEYBOARD_HP7XX) += jornada720_kbd.o
- obj-$(CONFIG_KEYBOARD_MAPLE) += maple_keyb.o
---- /dev/null
-+++ b/drivers/input/keyboard/goldfish_events.c
-@@ -0,0 +1,190 @@
-+/* drivers/input/keyboard/goldfish-events.c
-+**
-+** Copyright (C) 2007 Google, Inc.
-+**
-+** This software is licensed under the terms of the GNU General Public
-+** License version 2, as published by the Free Software Foundation, and
-+** may be copied, distributed, and modified under those terms.
-+**
-+** 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.
-+**
-+*/
-+
-+#include <linux/module.h>
-+#include <linux/init.h>
-+#include <linux/interrupt.h>
-+#include <linux/types.h>
-+#include <linux/input.h>
-+#include <linux/kernel.h>
-+#include <linux/platform_device.h>
-+
-+#include <mach/hardware.h>
-+#include <asm/irq.h>
-+#include <asm/io.h>
-+
-+enum {
-+ REG_READ = 0x00,
-+ REG_SET_PAGE = 0x00,
-+ REG_LEN = 0x04,
-+ REG_DATA = 0x08,
-+
-+ PAGE_NAME = 0x00000,
-+ PAGE_EVBITS = 0x10000,
-+ PAGE_ABSDATA = 0x20000 | EV_ABS,
-+};
-+
-+struct event_dev {
-+ struct input_dev *input;
-+ int irq;
-+ unsigned addr;
-+ char name[0];
-+};
-+
-+static irqreturn_t events_interrupt(int irq, void *dev_id)
-+{
-+ struct event_dev *edev = dev_id;
-+ unsigned type, code, value;
-+
-+ type = __raw_readl(edev->addr + REG_READ);
-+ code = __raw_readl(edev->addr + REG_READ);
-+ value = __raw_readl(edev->addr + REG_READ);
-+
-+ input_event(edev->input, type, code, value);
-+ return IRQ_HANDLED;
-+}
-+
-+static void events_import_bits(struct event_dev *edev, unsigned long bits[], unsigned type, size_t count)
-+{
-+ int i, j;
-+ size_t size;
-+ uint8_t val;
-+ unsigned addr = edev->addr;
-+ __raw_writel(PAGE_EVBITS | type, addr + REG_SET_PAGE);
-+ size = __raw_readl(addr + REG_LEN) * 8;
-+ if (size < count)
-+ count = size;
-+ addr = addr + REG_DATA;
-+ for (i = 0; i < count; i += 8) {
-+ val = __raw_readb(addr++);
-+ for (j = 0; j < 8; j++)
-+ if(val & 1 << j)
-+ set_bit(i + j, bits);
-+ }
-+}
-+
-+static int events_probe(struct platform_device *pdev)
-+{
-+ struct input_dev *input_dev;
-+ struct event_dev *edev = NULL;
-+ struct resource *res;
-+ unsigned keymapnamelen;
-+ int i;
-+ int count;
-+ int irq;
-+ unsigned addr;
-+ int ret;
-+
-+ printk("*** events probe ***\n");
-+
-+ input_dev = input_allocate_device();
-+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+ if(!input_dev || !res) goto fail;
-+
-+ addr = (unsigned) ioremap(res->start, 4096);
-+ irq = platform_get_irq(pdev, 0);
-+
-+ printk("events_probe() addr=0x%08x irq=%d\n", addr, irq);
-+
-+ if(!addr) goto fail;
-+ if(irq < 0) goto fail;
-+
-+ __raw_writel(PAGE_NAME, addr + REG_SET_PAGE);
-+ keymapnamelen = __raw_readl(addr + REG_LEN);
-+
-+ edev = kzalloc(sizeof(struct event_dev) + keymapnamelen + 1, GFP_KERNEL);
-+ if (!edev) goto fail;
-+
-+ edev->input = input_dev;
-+ edev->addr = addr;
-+ edev->irq = irq;
-+
-+ for (i = 0; i < keymapnamelen; i++) {
-+ edev->name[i] = __raw_readb(edev->addr + REG_DATA + i);
-+ }
-+ printk("events_probe() keymap=%s\n", edev->name);
-+
-+ events_import_bits(edev, input_dev->evbit, EV_SYN, EV_MAX);
-+ events_import_bits(edev, input_dev->keybit, EV_KEY, KEY_MAX);
-+ events_import_bits(edev, input_dev->relbit, EV_REL, REL_MAX);
-+ events_import_bits(edev, input_dev->absbit, EV_ABS, ABS_MAX);
-+ events_import_bits(edev, input_dev->mscbit, EV_MSC, MSC_MAX);
-+ events_import_bits(edev, input_dev->ledbit, EV_LED, LED_MAX);
-+ events_import_bits(edev, input_dev->sndbit, EV_SND, SND_MAX);
-+ events_import_bits(edev, input_dev->ffbit, EV_FF, FF_MAX);
-+ events_import_bits(edev, input_dev->swbit, EV_SW, SW_MAX);
-+
-+ __raw_writel(PAGE_ABSDATA, addr + REG_SET_PAGE);
-+ count = __raw_readl(addr + REG_LEN) / (4 * 4);
-+ if (count > ABS_MAX)
-+ count = ABS_MAX;
-+ for(i = 0; i < count; i++) {
-+ int val[4];
-+ int j;
-+ if (!test_bit(i, input_dev->absbit))
-+ continue;
-+ for(j = 0; j < ARRAY_SIZE(val); j++)
-+ val[j] = __raw_readl(edev->addr + REG_DATA + (i * ARRAY_SIZE(val) + j) * 4);
-+ input_set_abs_params(input_dev, i, val[0], val[1], val[2], val[3]);
-+ }
-+
-+ platform_set_drvdata(pdev, edev);
-+
-+ input_dev->name = edev->name;
-+ input_set_drvdata(input_dev, edev);
-+
-+ ret = input_register_device(input_dev);
-+ if (ret)
-+ goto fail;
-+
-+ if(request_irq(edev->irq, events_interrupt, 0,
-+ "goldfish-events-keypad", edev) < 0) {
-+ input_unregister_device(input_dev);
-+ kfree(edev);
-+ return -EINVAL;
-+ }
-+
-+ return 0;
-+
-+fail:
-+ kfree(edev);
-+ input_free_device(input_dev);
-+
-+ return -EINVAL;
-+}
-+
-+static struct platform_driver events_driver = {
-+ .probe = events_probe,
-+ .driver = {
-+ .name = "goldfish_events",
-+ },
-+};
-+
-+static int __devinit events_init(void)
-+{
-+ return platform_driver_register(&events_driver);
-+}
-+
-+
-+static void __exit events_exit(void)
-+{
-+}
-+
-+module_init(events_init);
-+module_exit(events_exit);
-+
-+MODULE_AUTHOR("Brian Swetland");
-+MODULE_DESCRIPTION("Goldfish Event Device");
-+MODULE_LICENSE("GPL");
projects / openwrt / svn-archive / archive.git / blobdiff