@@ -373,6 +373,18 @@ config KEYBOARD_SAMSUNG
To compile this driver as a module, choose M here: the
module will be called samsung-keypad.
+config KEYBOARD_QCIGKBD
+ tristate "Quanta Computer Inc. keyboard"
+ depends on I2C
+ help
+ This driver supports the i2c keyboard on Quanta smartbook devices.
+
+ Say Y here if you have a Quanta-based smartbook or notepad
+ device and want to use the Quanta i2c keyboard driver.
+
+ To compile this driver as a module, choose M here: the
+ module will be called qci_gkbd.
+
config KEYBOARD_STOWAWAY
tristate "Stowaway keyboard"
select SERIO
@@ -34,6 +34,7 @@ obj-$(CONFIG_KEYBOARD_OMAP4) += omap4-keypad.o
obj-$(CONFIG_KEYBOARD_OPENCORES) += opencores-kbd.o
obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o
obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o
+obj-$(CONFIG_KEYBOARD_QCIGKBD) += qci_gkbd.o
obj-$(CONFIG_KEYBOARD_QT2160) += qt2160.o
obj-$(CONFIG_KEYBOARD_SAMSUNG) += samsung-keypad.o
obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o
new file mode 100644
@@ -0,0 +1,259 @@
+/* Quanta I2C Keyboard Driver
+ *
+ * Copyright (C) 2009 Quanta Computer Inc.
+ * Author: Hsin Wu <hsin.wu@quantatw.com>
+ * Author: Austin Lai <austin.lai@quantatw.com>
+ *
+ * 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.
+ *
+ */
+
+/*
+ * This driver communicates via I2C to the nuvoTon WPCE775x Embedded
+ * Controller, which has the keyboard attached to it.
+ *
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/keyboard.h>
+#include <linux/gpio.h>
+#include <linux/input/qci_keyboard.h>
+
+#define QCI_KEYBOARD_ID_NAME "qci-gkbd"
+#define QCI_KEYBOARD_NAME "Quanta Keyboard"
+#define QCI_KEYBOARD_DEVICE "/qci-gkbd/input0"
+#define QCI_KEYBOARD_CMD_ENABLE 0xF4
+#define QCI_KEYBOARD_CMD_DISABLE 0xF5
+#define QCI_KEYBOARD_ACK 0xFA
+#define QCI_KEYBOARD_MAX_KEY 127
+
+struct qci_keyboard {
+ struct i2c_client *client;
+ struct input_dev *input;
+ unsigned int gpio;
+ unsigned int irq;
+};
+
+#ifdef CONFIG_PM
+static int qcikbd_suspend(struct device *dev)
+{
+ struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+ struct qci_keyboard *qcikbd = i2c_get_clientdata(client);
+
+ disable_irq(qcikbd->irq);
+
+ return 0;
+}
+
+static int qcikbd_resume(struct device *dev)
+{
+ struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+ struct qci_keyboard *qcikbd = i2c_get_clientdata(client);
+
+ enable_irq(qcikbd->irq);
+
+ return 0;
+}
+
+static const struct dev_pm_ops qcikbd_pm_ops = {
+ .suspend = qcikbd_suspend,
+ .resume = qcikbd_resume,
+};
+#endif
+
+static irqreturn_t qcikbd_interrupt(int irq, void *dev_id)
+{
+ struct qci_keyboard *qcikbd = dev_id;
+ struct input_dev *input = qcikbd->input;
+ int rc;
+ unsigned int scancode;
+ unsigned char data;
+ bool down;
+
+ rc = i2c_master_recv(qcikbd->client, &data, 1);
+ if (rc != 1)
+ goto irq_exit;
+
+ if (data == QCI_KEYBOARD_ACK)
+ goto irq_exit;
+
+ scancode = data & 0x7f;
+ down = !(data & 0x80);
+
+ if (scancode) {
+ input_event(input, EV_MSC, MSC_SCAN, scancode);
+ input_report_key(input, scancode, down);
+ input_sync(input);
+ }
+
+irq_exit:
+ return IRQ_HANDLED;
+}
+
+static int qcikbd_open(struct input_dev *dev)
+{
+ struct qci_keyboard *qcikbd = input_get_drvdata(dev);
+ u8 buf[1] = { QCI_KEYBOARD_CMD_ENABLE };
+
+ i2c_master_send(qcikbd->client, buf, 1);
+
+ return 0;
+}
+
+static void qcikbd_close(struct input_dev *dev)
+{
+ struct qci_keyboard *qcikbd = input_get_drvdata(dev);
+ u8 buf[1] = { QCI_KEYBOARD_CMD_DISABLE };
+
+ i2c_master_send(qcikbd->client, buf, 1);
+}
+
+static int __devinit qcikbd_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct qci_keyboard_platform_data *pd = client->dev.platform_data;
+ struct qci_keyboard *qcikbd;
+ struct input_dev *input;
+ int irq_trigger_type;
+ int err;
+ int i;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ pr_err("i2c functionality failed\n");
+ return -ENODEV;
+ }
+
+ qcikbd = kzalloc(sizeof(struct qci_keyboard), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!qcikbd || input) {
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ qcikbd->client = client;
+ qcikbd->input = input;
+ qcikbd->gpio = client->irq;
+
+ input->name = QCI_KEYBOARD_NAME;
+ input->phys = QCI_KEYBOARD_DEVICE;
+ input->id.bustype = BUS_I2C;
+ input->id.vendor = 0x1050;
+ input->id.product = 0x0006;
+ input->id.version = 0x0004;
+ input->open = qcikbd_open;
+ input->close = qcikbd_close;
+
+ __set_bit(EV_KEY, input->evbit);
+ __set_bit(EV_REP, input->evbit);
+ __set_bit(MSC_SCAN, input->mscbit);
+
+ /* Enable all supported keys */
+ for (i = 1; i <= QCI_KEYBOARD_MAX_KEY; i++)
+ __set_bit(i, input->keybit);
+
+ input_set_drvdata(qcikbd->input, qcikbd);
+
+ err = gpio_request(qcikbd->gpio, "qci-gkbd");
+ if (err) {
+ pr_err("gpio request failed\n");
+ goto err_free_mem;
+ }
+
+ err = gpio_direction_input(qcikbd->gpio);
+ if (err) {
+ pr_err("gpio direction failed\n");
+ goto err_free_gpio;
+ }
+
+ qcikbd->irq = gpio_to_irq(qcikbd->gpio);
+ irq_trigger_type = pd ? pd->irq_trigger_type : IRQF_TRIGGER_FALLING;
+ err = request_threaded_irq(qcikbd->irq, NULL, qcikbd_interrupt,
+ irq_trigger_type, client->name, qcikbd);
+ if (err) {
+ pr_err("unable to get IRQ\n");
+ goto err_free_gpio;
+ }
+
+ err = input_register_device(qcikbd->input);
+ if (err) {
+ pr_err("input register device failed\n");
+ goto err_free_irq;
+ }
+
+ i2c_set_clientdata(client, qcikbd);
+ return 0;
+
+err_free_irq:
+ free_irq(qcikbd->irq, qcikbd);
+err_free_gpio:
+ gpio_free(qcikbd->gpio);
+err_free_mem:
+ input_free_device(input);
+ kfree(qcikbd);
+
+ return err;
+}
+
+static int __devexit qcikbd_remove(struct i2c_client *dev)
+{
+ struct qci_keyboard *qcikbd = i2c_get_clientdata(dev);
+
+ free_irq(qcikbd->irq, qcikbd);
+ gpio_free(qcikbd->gpio);
+ input_unregister_device(qcikbd->input);
+ kfree(qcikbd);
+
+ return 0;
+}
+
+static const struct i2c_device_id qcikbd_idtable[] = {
+ { "wpce775-keyboard", 0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(i2c, qcikbd_idtable);
+
+static struct i2c_driver i2ckbd_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = QCI_KEYBOARD_ID_NAME,
+#ifdef CONFIG_PM
+ .pm = &qcikbd_pm_ops,
+#endif
+ },
+ .probe = qcikbd_probe,
+ .remove = __devexit_p(qcikbd_remove),
+ .id_table = qcikbd_idtable,
+};
+
+static int __init qcikbd_init(void)
+{
+ return i2c_add_driver(&i2ckbd_driver);
+}
+
+static void __exit qcikbd_exit(void)
+{
+ i2c_del_driver(&i2ckbd_driver);
+}
+
+module_init(qcikbd_init);
+module_exit(qcikbd_exit);
+
+MODULE_AUTHOR("Quanta Computer Inc.");
+MODULE_DESCRIPTION("Quanta Embedded Controller I2C Keyboard Driver");
+MODULE_ALIAS("platform:qci-gkbd");
+MODULE_LICENSE("GPL v2");
new file mode 100644
@@ -0,0 +1,25 @@
+/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#ifndef __QCI_KEYBOARD_H
+#define __QCI_KEYBOARD_H
+
+struct qci_keyboard_platform_data {
+ unsigned long irq_trigger_type;
+};
+
+#endif