17 files changed, 12611 insertions, 0 deletions

diff --git a/drivers/input/touchscreen/h3600_ts_input.c b/drivers/input/touchscreen/h3600_ts_input.c
new file mode 100644
index 00000000000..211811ae552
--- /dev/null
+++ b/drivers/input/touchscreen/h3600_ts_input.c
@@ -0,0 +1,494 @@
+/*
+ *  Copyright (c) 2001 "Crazy" James Simmons jsimmons@transvirtual.com
+ *
+ *  Sponsored by Transvirtual Technology.
+ *
+ *  Derived from the code in h3600_ts.[ch] by Charles Flynn
+ */
+
+/*
+ * Driver for the h3600 Touch Screen and other Atmel controlled devices.
+ */
+
+/*
+ * 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 by
+ * e-mail - mail your message to <jsimmons@transvirtual.com>.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+/* SA1100 serial defines */
+#include <mach/hardware.h>
+#include <mach/irqs.h>
+
+#define DRIVER_DESC     "H3600 touchscreen driver"
+
+MODULE_AUTHOR("James Simmons <jsimmons@transvirtual.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+/* The start and end of frame characters SOF and EOF */
+#define CHAR_SOF                0x02
+#define CHAR_EOF                0x03
+#define FRAME_OVERHEAD          3       /* CHAR_SOF,CHAR_EOF,LENGTH = 3 */
+
+/*
+        Atmel events and response IDs contained in frame.
+        Programmer has no control over these numbers.
+        TODO there are holes - specifically  1,7,0x0a
+*/
+#define VERSION_ID              0       /* Get Version (request/response) */
+#define KEYBD_ID                2       /* Keyboard (event) */
+#define TOUCHS_ID               3       /* Touch Screen (event)*/
+#define EEPROM_READ_ID          4       /* (request/response) */
+#define EEPROM_WRITE_ID         5       /* (request/response) */
+#define THERMAL_ID              6       /* (request/response) */
+#define NOTIFY_LED_ID           8       /* (request/response) */
+#define BATTERY_ID              9       /* (request/response) */
+#define SPI_READ_ID             0x0b    /* ( request/response) */
+#define SPI_WRITE_ID            0x0c    /* ( request/response) */
+#define FLITE_ID                0x0d    /* backlight ( request/response) */
+#define STX_ID                  0xa1    /* extension pack status (req/resp) */
+
+#define MAX_ID                  14
+
+#define H3600_MAX_LENGTH 16
+#define H3600_KEY 0xf
+
+#define H3600_SCANCODE_RECORD   1        /* 1 -> record button */
+#define H3600_SCANCODE_CALENDAR 2        /* 2 -> calendar */
+#define H3600_SCANCODE_CONTACTS 3        /* 3 -> contact */
+#define H3600_SCANCODE_Q        4        /* 4 -> Q button */
+#define H3600_SCANCODE_START    5        /* 5 -> start menu */
+#define H3600_SCANCODE_UP       6        /* 6 -> up */
+#define H3600_SCANCODE_RIGHT    7        /* 7 -> right */
+#define H3600_SCANCODE_LEFT     8        /* 8 -> left */
+#define H3600_SCANCODE_DOWN     9        /* 9 -> down */
+
+/*
+ * Per-touchscreen data.
+ */
+struct h3600_dev {
+        struct input_dev *dev;
+        struct serio *serio;
+        unsigned char event;    /* event ID from packet */
+        unsigned char chksum;
+        unsigned char len;
+        unsigned char idx;
+        unsigned char buf[H3600_MAX_LENGTH];
+        char phys[32];
+};
+
+static irqreturn_t action_button_handler(int irq, void *dev_id)
+{
+        int down = (GPLR & GPIO_BITSY_ACTION_BUTTON) ? 0 : 1;
+        struct input_dev *dev = dev_id;
+
+        input_report_key(dev, KEY_ENTER, down);
+        input_sync(dev);
+
+        return IRQ_HANDLED;
+}
+
+static irqreturn_t npower_button_handler(int irq, void *dev_id)
+{
+        int down = (GPLR & GPIO_BITSY_NPOWER_BUTTON) ? 0 : 1;
+        struct input_dev *dev = dev_id;
+
+        /*
+         * This interrupt is only called when we release the key. So we have
+         * to fake a key press.
+         */
+        input_report_key(dev, KEY_SUSPEND, 1);
+        input_report_key(dev, KEY_SUSPEND, down);
+        input_sync(dev);
+
+        return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_PM
+
+static int flite_brightness = 25;
+
+enum flite_pwr {
+        FLITE_PWR_OFF = 0,
+        FLITE_PWR_ON = 1
+};
+
+/*
+ * h3600_flite_power: enables or disables power to frontlight, using last bright */
+unsigned int h3600_flite_power(struct input_dev *dev, enum flite_pwr pwr)
+{
+        unsigned char brightness = (pwr == FLITE_PWR_OFF) ? 0 : flite_brightness;
+        struct h3600_dev *ts = input_get_drvdata(dev);
+
+        /* Must be in this order */
+        serio_write(ts->serio, 1);
+        serio_write(ts->serio, pwr);
+        serio_write(ts->serio, brightness);
+
+        return 0;
+}
+
+#endif
+
+/*
+ * This function translates the native event packets to linux input event
+ * packets. Some packets coming from serial are not touchscreen related. In
+ * this case we send them off to be processed elsewhere.
+ */
+static void h3600ts_process_packet(struct h3600_dev *ts)
+{
+        struct input_dev *dev = ts->dev;
+        static int touched = 0;
+        int key, down = 0;
+
+        switch (ts->event) {
+                /*
+                   Buttons - returned as a single byte
+                        7 6 5 4 3 2 1 0
+                        S x x x N N N N
+
+                   S       switch state ( 0=pressed 1=released)
+                   x       Unused.
+                   NNNN    switch number 0-15
+
+                   Note: This is true for non interrupt generated key events.
+                */
+                case KEYBD_ID:
+                        down = (ts->buf[0] & 0x80) ? 0 : 1;
+