zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/input/mouse/pc110pad.c b/ap/os/linux/linux-3.4.x/drivers/input/mouse/pc110pad.c
new file mode 100644
index 0000000..7b02b65
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/input/mouse/pc110pad.c
@@ -0,0 +1,179 @@
+/*
+ * Copyright (c) 2000-2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Alan Cox Robin O'Leary
+ */
+
+/*
+ * IBM PC110 touchpad driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("IBM PC110 touchpad driver");
+MODULE_LICENSE("GPL");
+
+#define PC110PAD_OFF 0x30
+#define PC110PAD_ON 0x38
+
+static int pc110pad_irq = 10;
+static int pc110pad_io = 0x15e0;
+
+static struct input_dev *pc110pad_dev;
+static int pc110pad_data[3];
+static int pc110pad_count;
+
+static irqreturn_t pc110pad_interrupt(int irq, void *ptr)
+{
+ int value = inb_p(pc110pad_io);
+ int handshake = inb_p(pc110pad_io + 2);
+
+ outb(handshake | 1, pc110pad_io + 2);
+ udelay(2);
+ outb(handshake & ~1, pc110pad_io + 2);
+ udelay(2);
+ inb_p(0x64);
+
+ pc110pad_data[pc110pad_count++] = value;
+
+ if (pc110pad_count < 3)
+ return IRQ_HANDLED;
+
+ input_report_key(pc110pad_dev, BTN_TOUCH,
+ pc110pad_data[0] & 0x01);
+ input_report_abs(pc110pad_dev, ABS_X,
+ pc110pad_data[1] | ((pc110pad_data[0] << 3) & 0x80) | ((pc110pad_data[0] << 1) & 0x100));
+ input_report_abs(pc110pad_dev, ABS_Y,
+ pc110pad_data[2] | ((pc110pad_data[0] << 4) & 0x80));
+ input_sync(pc110pad_dev);
+
+ pc110pad_count = 0;
+ return IRQ_HANDLED;
+}
+
+static void pc110pad_close(struct input_dev *dev)
+{
+ outb(PC110PAD_OFF, pc110pad_io + 2);
+}
+
+static int pc110pad_open(struct input_dev *dev)
+{
+ pc110pad_interrupt(0, NULL);
+ pc110pad_interrupt(0, NULL);
+ pc110pad_interrupt(0, NULL);
+ outb(PC110PAD_ON, pc110pad_io + 2);
+ pc110pad_count = 0;
+
+ return 0;
+}
+
+/*
+ * We try to avoid enabling the hardware if it's not
+ * there, but we don't know how to test. But we do know
+ * that the PC110 is not a PCI system. So if we find any
+ * PCI devices in the machine, we don't have a PC110.
+ */
+static int __init pc110pad_init(void)
+{
+ int err;
+
+ if (!no_pci_devices())
+ return -ENODEV;
+
+ if (!request_region(pc110pad_io, 4, "pc110pad")) {
+ printk(KERN_ERR "pc110pad: I/O area %#x-%#x in use.\n",
+ pc110pad_io, pc110pad_io + 4);
+ return -EBUSY;
+ }
+
+ outb(PC110PAD_OFF, pc110pad_io + 2);
+
+ if (request_irq(pc110pad_irq, pc110pad_interrupt, 0, "pc110pad", NULL)) {
+ printk(KERN_ERR "pc110pad: Unable to get irq %d.\n", pc110pad_irq);
+ err = -EBUSY;
+ goto err_release_region;
+ }
+
+ pc110pad_dev = input_allocate_device();
+ if (!pc110pad_dev) {
+ printk(KERN_ERR "pc110pad: Not enough memory.\n");
+ err = -ENOMEM;
+ goto err_free_irq;
+ }
+
+ pc110pad_dev->name = "IBM PC110 TouchPad";
+ pc110pad_dev->phys = "isa15e0/input0";
+ pc110pad_dev->id.bustype = BUS_ISA;
+ pc110pad_dev->id.vendor = 0x0003;
+ pc110pad_dev->id.product = 0x0001;
+ pc110pad_dev->id.version = 0x0100;
+
+ pc110pad_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ pc110pad_dev->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y);
+ pc110pad_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ input_abs_set_max(pc110pad_dev, ABS_X, 0x1ff);
+ input_abs_set_max(pc110pad_dev, ABS_Y, 0x0ff);
+
+ pc110pad_dev->open = pc110pad_open;
+ pc110pad_dev->close = pc110pad_close;
+
+ err = input_register_device(pc110pad_dev);
+ if (err)
+ goto err_free_dev;
+
+ return 0;
+
+ err_free_dev:
+ input_free_device(pc110pad_dev);
+ err_free_irq:
+ free_irq(pc110pad_irq, NULL);
+ err_release_region:
+ release_region(pc110pad_io, 4);
+
+ return err;
+}
+
+static void __exit pc110pad_exit(void)
+{
+ outb(PC110PAD_OFF, pc110pad_io + 2);
+ free_irq(pc110pad_irq, NULL);
+ input_unregister_device(pc110pad_dev);
+ release_region(pc110pad_io, 4);
+}
+
+module_init(pc110pad_init);
+module_exit(pc110pad_exit);