Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 528 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 000000000000..acb9137a0226
--- /dev/null
+++ b/drivers/input/touchscreen/h3600_ts_input.c
@@ -0,0 +1,528 @@
+/*
+ * $Id: h3600_ts_input.c,v 1.4 2002/01/23 06:39:37 jsimmons Exp $
+ *
+ *  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>
+#include <linux/pm.h>
+
+/* SA1100 serial defines */
+#include <asm/arch/hardware.h>
+#include <asm/arch/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/respose) */
+#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 */
+
+static char *h3600_name = "H3600 TouchScreen";
+
+/*
+ * Per-touchscreen data.
+ */
+struct h3600_dev {
+	struct input_dev dev;
+	struct pm_dev *pm_dev;
+	struct serio *serio;
+	struct pm_dev *pm_dev;
+	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, struct pt_regs *regs)
+{
+        int down = (GPLR & GPIO_BITSY_ACTION_BUTTON) ? 0 : 1;
+	struct input_dev *dev = (struct input_dev *) dev_id;
+
+	input_regs(dev, regs);
+	input_report_key(dev, KEY_ENTER, down);
+	input_sync(dev);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t npower_button_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+        int down = (GPLR & GPIO_BITSY_NPOWER_BUTTON) ? 0 : 1;
+	struct input_dev *dev = (struct input_dev *) dev_id;
+
+	/*
+	 * This interrupt is only called when we release the key. So we have
+	 * to fake a key press.
+	 */
+	input_regs(dev, regs);
+	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 = dev->private;
+
+	/* Must be in this order */
+       	ts->serio->write(ts->serio, 1);
+	ts->serio->write(ts->serio, pwr);
+      	ts->serio->write(ts->serio, brightness);
+	return 0;
+}
+
+static int suspended = 0;
+static int h3600ts_pm_callback(struct pm_dev *pm_dev, pm_request_t req,
+				void *data)
+{
+	struct input_dev *dev = (struct input_dev *) data;
+
+        switch (req) {
+        case PM_SUSPEND: /* enter D1-D3 */
+                suspended = 1;
+                h3600_flite_power(dev, FLITE_PWR_OFF);
+                break;
+        case PM_BLANK:
+                if (!suspended)
+                        h3600_flite_power(dev, FLITE_PWR_OFF);
+                break;
+        case PM_RESUME:  /* enter D0 */
+                /* same as unblank */
+        case PM_UNBLANK:
+                if (suspended) {
+                        //initSerial();
+                        suspended = 0;
+                }
+                h3600_flite_power(dev, FLITE_PWR_ON);
+                break;
+        }
+        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 pt_regs *regs)
+{
+        struct input_dev *dev = &ts->dev;
+	static int touched = 0;
+	int key, down = 0;
+
+	input_regs(dev, regs);
+
+        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;
+
+			switch (ts->buf[0] & 0x7f) {
+				case H3600_SCANCODE_RECORD:
+					key = KEY_RECORD;
+					break;
+				case H3600_SCANCODE_CALENDAR:
+					key = KEY_PROG1;
+                                        break;
+				case H3600_SCANCODE_CONTACTS:
+					key = KEY_PROG2;
+                                        break;
+				case H3600_SCANCODE_Q:
+					key = KEY_Q;
+                                        break;
+				case H3600_SCANCODE_START:
+					key = KEY_PROG3;
+                                        break;
+				case H3600_SCANCODE_UP:
+					key = KEY_UP;
+                                        break;
+				case H3600_SCANCODE_RIGHT:
+					key = KEY_RIGHT;
+                                        break;
+				case H3600_SCANCODE_LEFT:
+					key = KEY_LEFT;
+                                        break;
+				case H3600_SCANCODE_DOWN:
+					key = KEY_DOWN;
+                                        break;
+				default:
+					key = 0;
+			}
+                        if (key)
+                        	input_report_key(dev, key, down);
+                        break;
+                /*
+                 * Native touchscreen event data is formatted as shown below:-
+                 *
+                 *      +-------+-------+-------+-------+
+                 *      | Xmsb  | Xlsb  | Ymsb  | Ylsb  |
+                 *      +-------+-------+-------+-------+
+                 *       byte 0    1       2       3
+                 */
+                case TOUCHS_ID:
+			if (!touched) {
+				input_report_key(dev, BTN_TOUCH, 1);
+				touched = 1;
+			}
+
+			if (ts->len) {
+				unsigned short x, y;
+
+				x = ts->buf[0]; x <<= 8; x += ts->buf[1];
+                                y = ts->buf[2]; y <<= 8; y += ts->buf[3];
+
+                       		input_report_abs(dev, ABS_X, x);
+                       		input_report_abs(dev, ABS_Y, y);
+			} else {
+		               	input_report_key(dev, BTN_TOUCH, 0);
+				touched = 0;
+			}
+                        break;
+		default:
+			/* Send a non input event elsewhere */
+			break;
+        }
+
+	input_sync(dev);
+}
+
+/*
+ * h3600ts_event() handles events from the input module.
+ */
+static int h3600ts_event(struct input_dev *dev, unsigned int type,
+		 	 unsigned int code, int value)
+{
+	struct h3600_dev *ts = dev->private;
+
+	switch (type) {
+		case EV_LED: {
+		//	ts->serio->write(ts->serio, SOME_CMD);
+			return 0;
+		}
+	}
+	return -1;
+}
+
+/*
+        Frame format
+  byte    1       2               3              len + 4
+        +-------+---------------+---------------+--=------------+
+        |SOF    |id     |len    | len bytes     | Chksum        |
+        +-------+---------------+---------------+--=------------+
+  bit   0     7  8    11 12   15 16
+
+        +-------+---------------+-------+
+        |SOF    |id     |0      |Chksum | - Note Chksum does not include SOF
+        +-------+---------------+-------+
+  bit   0     7  8    11 12   15 16
+
+*/
+
+static int state;
+
+/* decode States  */
+#define STATE_SOF       0       /* start of FRAME */
+#define STATE_ID        1       /* state where we decode the ID & len */
+#define STATE_DATA      2       /* state where we decode data */
+#define STATE_EOF       3       /* state where we decode checksum or EOF */
+
+static irqreturn_t h3600ts_interrupt(struct serio *serio, unsigned char data,
+                                     unsigned int flags, struct pt_regs *regs)
+{
+        struct h3600_dev *ts = serio_get_drvdata(serio);
+
+	/*
+         * We have a new frame coming in.
+         */
+	switch (state) {
+		case STATE_SOF:
+        		if (data == CHAR_SOF)
+                		state = STATE_ID;
+			break;
+        	case STATE_ID:
+			ts->event = (data & 0xf0) >> 4;
+			ts->len = (data & 0xf);
+			ts->idx = 0;
+			if (ts->event >= MAX_ID) {
+				state = STATE_SOF;
+                        	break;
+			}
+			ts->chksum = data;
+                	state = (ts->len > 0) ? STATE_DATA : STATE_EOF;
+			break;
+		case STATE_DATA:
+			ts->chksum += data;
+			ts->buf[ts->idx]= data;
+			if(++ts->idx == ts->len)
+                        	state = STATE_EOF;
+			break;
+		case STATE_EOF:
+                	state = STATE_SOF;
+                	if (data == CHAR_EOF || data == ts->chksum)
+				h3600ts_process_packet(ts, regs);
+                	break;
+        	default:
+                	printk("Error3\n");
+                	break;
+	}
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * h3600ts_connect() is the routine that is called when someone adds a
+ * new serio device that supports H3600 protocol and registers it as
+ * an input device.
+ */
+static int h3600ts_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct h3600_dev *ts;
+	int err;
+
+	if (!(ts = kmalloc(sizeof(struct h3600_dev), GFP_KERNEL)))
+		return -ENOMEM;
+
+	memset(ts, 0, sizeof(struct h3600_dev));
+
+	init_input_dev(&ts->dev);
+
+	/* Device specific stuff */
+        set_GPIO_IRQ_edge(GPIO_BITSY_ACTION_BUTTON, GPIO_BOTH_EDGES);
+        set_GPIO_IRQ_edge(GPIO_BITSY_NPOWER_BUTTON, GPIO_RISING_EDGE);
+
+        if (request_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, action_button_handler,
+			SA_SHIRQ | SA_INTERRUPT | SA_SAMPLE_RANDOM,
+			"h3600_action", &ts->dev)) {
+		printk(KERN_ERR "h3600ts.c: Could not allocate Action Button IRQ!\n");
+		kfree(ts);
+		return -EBUSY;
+	}
+
+        if (request_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, npower_button_handler,
+			SA_SHIRQ | SA_INTERRUPT | SA_SAMPLE_RANDOM,
+			"h3600_suspend", &ts->dev)) {
+		free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, &ts->dev);
+		printk(KERN_ERR "h3600ts.c: Could not allocate Power Button IRQ!\n");
+		kfree(ts);
+		return -EBUSY;
+	}
+
+	/* Now we have things going we setup our input device */
+	ts->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_LED) | BIT(EV_PWR);
+	ts->dev.ledbit[0] = BIT(LED_SLEEP);
+	input_set_abs_params(&ts->dev, ABS_X, 60, 985, 0, 0);
+	input_set_abs_params(&ts->dev, ABS_Y, 35, 1024, 0, 0);
+
+	set_bit(KEY_RECORD, ts->dev.keybit);
+	set_bit(KEY_Q, ts->dev.keybit);
+	set_bit(KEY_PROG1, ts->dev.keybit);
+	set_bit(KEY_PROG2, ts->dev.keybit);
+	set_bit(KEY_PROG3, ts->dev.keybit);
+	set_bit(KEY_UP, ts->dev.keybit);
+	set_bit(KEY_RIGHT, ts->dev.keybit);
+	set_bit(KEY_LEFT, ts->dev.keybit);
+	set_bit(KEY_DOWN, ts->dev.keybit);
+	set_bit(KEY_ENTER, ts->dev.keybit);
+	ts->dev.keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH);
+	ts->dev.keybit[LONG(KEY_SUSPEND)] |= BIT(KEY_SUSPEND);
+
+	ts->serio = serio;
+
+	sprintf(ts->phys, "%s/input0", serio->phys);
+
+       	ts->dev.event = h3600ts_event;
+	ts->dev.private = ts;
+	ts->dev.name = h3600_name;
+	ts->dev.phys = ts->phys;
+	ts->dev.id.bustype = BUS_RS232;
+	ts->dev.id.vendor = SERIO_H3600;
+	ts->dev.id.product = 0x0666;  /* FIXME !!! We can ask the hardware */
+	ts->dev.id.version = 0x0100;
+
+	serio_set_drvdata(serio, ts);
+
+	err = serio_open(serio, drv);
+	if (err) {
+        	free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, ts);
+        	free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts);
+		serio_set_drvdata(serio, NULL);
+		kfree(ts);
+		return err;
+	}
+
+	//h3600_flite_control(1, 25);     /* default brightness */
+#ifdef CONFIG_PM
+	ts->pm_dev = pm_register(PM_ILLUMINATION_DEV, PM_SYS_LIGHT,
+				h3600ts_pm_callback);
+	printk("registered pm callback\n");
+#endif
+	input_register_device(&ts->dev);
+
+	printk(KERN_INFO "input: %s on %s\n", h3600_name, serio->phys);
+
+	return 0;
+}
+
+/*
+ * h3600ts_disconnect() is the opposite of h3600ts_connect()
+ */
+
+static void h3600ts_disconnect(struct serio *serio)
+{
+	struct h3600_dev *ts = serio_get_drvdata(serio);
+
+	free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, &ts->dev);
+	free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, &ts->dev);
+	input_unregister_device(&ts->dev);
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	kfree(ts);
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id h3600ts_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_H3600,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, h3600ts_serio_ids);
+
+static struct serio_driver h3600ts_drv = {
+	.driver		= {
+		.name	= "h3600ts",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= h3600ts_serio_ids,
+	.interrupt	= h3600ts_interrupt,
+	.connect	= h3600ts_connect,
+	.disconnect	= h3600ts_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init h3600ts_init(void)
+{
+	serio_register_driver(&h3600ts_drv);
+	return 0;
+}
+
+static void __exit h3600ts_exit(void)
+{
+	serio_unregister_driver(&h3600ts_drv);
+}
+
+module_init(h3600ts_init);
+module_exit(h3600ts_exit);