[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/input/serio/ct82c710.c b/src/kernel/linux/v4.14/drivers/input/serio/ct82c710.c
new file mode 100644
index 0000000..9c54c43
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/input/serio/ct82c710.c
@@ -0,0 +1,260 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * 82C710 C&T mouse port chip 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/delay.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/serio.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <asm/io.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("82C710 C&T mouse port chip driver");
+MODULE_LICENSE("GPL");
+
+/*
+ * ct82c710 interface
+ */
+
+#define CT82C710_DEV_IDLE 0x01 /* Device Idle */
+#define CT82C710_RX_FULL 0x02 /* Device Char received */
+#define CT82C710_TX_IDLE 0x04 /* Device XMIT Idle */
+#define CT82C710_RESET 0x08 /* Device Reset */
+#define CT82C710_INTS_ON 0x10 /* Device Interrupt On */
+#define CT82C710_ERROR_FLAG 0x20 /* Device Error */
+#define CT82C710_CLEAR 0x40 /* Device Clear */
+#define CT82C710_ENABLE 0x80 /* Device Enable */
+
+#define CT82C710_IRQ 12
+
+#define CT82C710_DATA ct82c710_iores.start
+#define CT82C710_STATUS (ct82c710_iores.start + 1)
+
+static struct serio *ct82c710_port;
+static struct platform_device *ct82c710_device;
+static struct resource ct82c710_iores;
+
+/*
+ * Interrupt handler for the 82C710 mouse port. A character
+ * is waiting in the 82C710.
+ */
+
+static irqreturn_t ct82c710_interrupt(int cpl, void *dev_id)
+{
+ return serio_interrupt(ct82c710_port, inb(CT82C710_DATA), 0);
+}
+
+/*
+ * Wait for device to send output char and flush any input char.
+ */
+
+static int ct82c170_wait(void)
+{
+ int timeout = 60000;
+
+ while ((inb(CT82C710_STATUS) & (CT82C710_RX_FULL | CT82C710_TX_IDLE | CT82C710_DEV_IDLE))
+ != (CT82C710_DEV_IDLE | CT82C710_TX_IDLE) && timeout) {
+
+ if (inb_p(CT82C710_STATUS) & CT82C710_RX_FULL) inb_p(CT82C710_DATA);
+
+ udelay(1);
+ timeout--;
+ }
+
+ return !timeout;
+}
+
+static void ct82c710_close(struct serio *serio)
+{
+ if (ct82c170_wait())
+ printk(KERN_WARNING "ct82c710.c: Device busy in close()\n");
+
+ outb_p(inb_p(CT82C710_STATUS) & ~(CT82C710_ENABLE | CT82C710_INTS_ON), CT82C710_STATUS);
+
+ if (ct82c170_wait())
+ printk(KERN_WARNING "ct82c710.c: Device busy in close()\n");
+
+ free_irq(CT82C710_IRQ, NULL);
+}
+
+static int ct82c710_open(struct serio *serio)
+{
+ unsigned char status;
+ int err;
+
+ err = request_irq(CT82C710_IRQ, ct82c710_interrupt, 0, "ct82c710", NULL);
+ if (err)
+ return err;
+
+ status = inb_p(CT82C710_STATUS);
+
+ status |= (CT82C710_ENABLE | CT82C710_RESET);
+ outb_p(status, CT82C710_STATUS);
+
+ status &= ~(CT82C710_RESET);
+ outb_p(status, CT82C710_STATUS);
+
+ status |= CT82C710_INTS_ON;
+ outb_p(status, CT82C710_STATUS); /* Enable interrupts */
+
+ while (ct82c170_wait()) {
+ printk(KERN_ERR "ct82c710: Device busy in open()\n");
+ status &= ~(CT82C710_ENABLE | CT82C710_INTS_ON);
+ outb_p(status, CT82C710_STATUS);
+ free_irq(CT82C710_IRQ, NULL);
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+/*
+ * Write to the 82C710 mouse device.
+ */
+
+static int ct82c710_write(struct serio *port, unsigned char c)
+{
+ if (ct82c170_wait()) return -1;
+ outb_p(c, CT82C710_DATA);
+ return 0;
+}
+
+/*
+ * See if we can find a 82C710 device. Read mouse address.
+ */
+
+static int __init ct82c710_detect(void)
+{
+ outb_p(0x55, 0x2fa); /* Any value except 9, ff or 36 */
+ outb_p(0xaa, 0x3fa); /* Inverse of 55 */
+ outb_p(0x36, 0x3fa); /* Address the chip */
+ outb_p(0xe4, 0x3fa); /* 390/4; 390 = config address */
+ outb_p(0x1b, 0x2fa); /* Inverse of e4 */
+ outb_p(0x0f, 0x390); /* Write index */
+ if (inb_p(0x391) != 0xe4) /* Config address found? */
+ return -ENODEV; /* No: no 82C710 here */
+
+ outb_p(0x0d, 0x390); /* Write index */
+ ct82c710_iores.start = inb_p(0x391) << 2; /* Get mouse I/O address */
+ ct82c710_iores.end = ct82c710_iores.start + 1;
+ ct82c710_iores.flags = IORESOURCE_IO;
+ outb_p(0x0f, 0x390);
+ outb_p(0x0f, 0x391); /* Close config mode */
+
+ return 0;
+}
+
+static int ct82c710_probe(struct platform_device *dev)
+{
+ ct82c710_port = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!ct82c710_port)
+ return -ENOMEM;
+
+ ct82c710_port->id.type = SERIO_8042;
+ ct82c710_port->dev.parent = &dev->dev;
+ ct82c710_port->open = ct82c710_open;
+ ct82c710_port->close = ct82c710_close;
+ ct82c710_port->write = ct82c710_write;
+ strlcpy(ct82c710_port->name, "C&T 82c710 mouse port",
+ sizeof(ct82c710_port->name));
+ snprintf(ct82c710_port->phys, sizeof(ct82c710_port->phys),
+ "isa%16llx/serio0", (unsigned long long)CT82C710_DATA);
+
+ serio_register_port(ct82c710_port);
+
+ printk(KERN_INFO "serio: C&T 82c710 mouse port at %#llx irq %d\n",
+ (unsigned long long)CT82C710_DATA, CT82C710_IRQ);
+
+ return 0;
+}
+
+static int ct82c710_remove(struct platform_device *dev)
+{
+ serio_unregister_port(ct82c710_port);
+
+ return 0;
+}
+
+static struct platform_driver ct82c710_driver = {
+ .driver = {
+ .name = "ct82c710",
+ },
+ .probe = ct82c710_probe,
+ .remove = ct82c710_remove,
+};
+
+
+static int __init ct82c710_init(void)
+{
+ int error;
+
+ error = ct82c710_detect();
+ if (error)
+ return error;
+
+ error = platform_driver_register(&ct82c710_driver);
+ if (error)
+ return error;
+
+ ct82c710_device = platform_device_alloc("ct82c710", -1);
+ if (!ct82c710_device) {
+ error = -ENOMEM;
+ goto err_unregister_driver;
+ }
+
+ error = platform_device_add_resources(ct82c710_device, &ct82c710_iores, 1);
+ if (error)
+ goto err_free_device;
+
+ error = platform_device_add(ct82c710_device);
+ if (error)
+ goto err_free_device;
+
+ return 0;
+
+ err_free_device:
+ platform_device_put(ct82c710_device);
+ err_unregister_driver:
+ platform_driver_unregister(&ct82c710_driver);
+ return error;
+}
+
+static void __exit ct82c710_exit(void)
+{
+ platform_device_unregister(ct82c710_device);
+ platform_driver_unregister(&ct82c710_driver);
+}
+
+module_init(ct82c710_init);
+module_exit(ct82c710_exit);