/*
* $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
+ * Copyright (c) 2001 "Crazy" James Simmons jsimmons@transvirtual.com
*
- * Sponsored by Transvirtual Technology.
- *
- * Derived from the code in h3600_ts.[ch] by Charles Flynn
+ * Sponsored by Transvirtual Technology.
+ *
+ * Derived from the code in h3600_ts.[ch] by Charles Flynn
*/
/*
#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.
*/
#define MAX_ID 14
#define H3600_MAX_LENGTH 16
-#define H3600_KEY 0xf
+#define H3600_KEY 0xf
#define H3600_SCANCODE_RECORD 1 /* 1 -> record button */
#define H3600_SCANCODE_CALENDAR 2 /* 2 -> calendar */
#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";
+#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 input_dev *dev;
struct serio *serio;
unsigned char event; /* event ID from packet */
unsigned char chksum;
char phys[32];
};
-static void action_button_handler(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t action_button_handler(int irq, void *dev_id)
{
- int down = (GPLR & GPIO_BITSY_ACTION_BUTTON) ? 0 : 1;
+ 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 void npower_button_handler(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t npower_button_handler(int irq, void *dev_id)
{
- int down = (GPLR & GPIO_BITSY_NPOWER_BUTTON) ? 0 : 1;
+ 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
+ /*
+ * 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_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
+ 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);
+ 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);
+ /* Must be in this order */
+ ts->serio->write(ts->serio, 1);
ts->serio->write(ts->serio, pwr);
- ts->serio->write(ts->serio, brightness);
+ 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.
+ * this case we send them off to be processed elsewhere.
*/
-static void h3600ts_process_packet(struct h3600_dev *ts, struct pt_regs *regs)
+static void h3600ts_process_packet(struct h3600_dev *ts)
{
- struct input_dev *dev = &ts->dev;
+ 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
- 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
- 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;
+ 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:
break;
case H3600_SCANCODE_CONTACTS:
key = KEY_PROG2;
- break;
- case H3600_SCANCODE_Q:
+ break;
+ case H3600_SCANCODE_Q:
key = KEY_Q;
- break;
+ break;
case H3600_SCANCODE_START:
key = KEY_PROG3;
- break;
+ break;
case H3600_SCANCODE_UP:
key = KEY_UP;
- break;
+ break;
case H3600_SCANCODE_RIGHT:
key = KEY_RIGHT;
- break;
+ break;
case H3600_SCANCODE_LEFT:
key = KEY_LEFT;
- break;
+ break;
case H3600_SCANCODE_DOWN:
key = KEY_DOWN;
- break;
+ 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) {
+ 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;
+ unsigned short x, y;
x = ts->buf[0]; x <<= 8; x += ts->buf[1];
- y = ts->buf[2]; y <<= 8; y += ts->buf[3];
+ y = ts->buf[2]; y <<= 8; y += ts->buf[3];
- input_report_abs(dev, ABS_X, x);
- input_report_abs(dev, ABS_Y, y);
+ input_report_abs(dev, ABS_X, x);
+ input_report_abs(dev, ABS_Y, y);
} else {
- input_report_key(dev, BTN_TOUCH, 0);
+ input_report_key(dev, BTN_TOUCH, 0);
touched = 0;
- }
- break;
+ }
+ 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)
+static int h3600ts_event(struct input_dev *dev, unsigned int type,
+ unsigned int code, int value)
{
+#if 0
struct h3600_dev *ts = dev->private;
switch (type) {
// ts->serio->write(ts->serio, SOME_CMD);
return 0;
}
- }
+ }
return -1;
+#endif
+ return 0;
}
/*
#define STATE_DATA 2 /* state where we decode data */
#define STATE_EOF 3 /* state where we decode checksum or EOF */
-static void h3600ts_interrupt(struct serio *serio, unsigned char data,
- unsigned int flags)
+static irqreturn_t h3600ts_interrupt(struct serio *serio, unsigned char data,
+ unsigned int flags)
{
- struct h3600_dev *ts = serio->private;
+ struct h3600_dev *ts = serio_get_drvdata(serio);
/*
- * We have a new frame coming in.
- */
+ * We have a new frame coming in.
+ */
switch (state) {
case STATE_SOF:
- if (data == CHAR_SOF)
- state = STATE_ID;
- return;
- case STATE_ID:
+ 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;
+ break;
}
ts->chksum = data;
- state=(ts->len > 0 ) ? STATE_DATA : STATE_EOF;
+ 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;
+ if (++ts->idx == ts->len)
+ state = STATE_EOF;
break;
case STATE_EOF:
- state = STATE_SOF;
- if (data == CHAR_EOF || data == ts->chksum )
+ state = STATE_SOF;
+ if (data == CHAR_EOF || data == ts->chksum)
h3600ts_process_packet(ts);
- break;
- default:
- printk("Error3\n");
- break;
+ break;
+ default:
+ printk("Error3\n");
+ break;
}
+
+ return IRQ_HANDLED;
}
/*
* h3600ts_connect() is the routine that is called when someone adds a
- * new serio device. It looks whether it was registered as a H3600 touchscreen
- * and if yes, registers it as an input device.
+ * new serio device that supports H3600 protocol and registers it as
+ * an input device.
*/
-static void h3600ts_connect(struct serio *serio, struct serio_dev *dev)
+static int h3600ts_connect(struct serio *serio, struct serio_driver *drv)
{
struct h3600_dev *ts;
+ struct input_dev *input_dev;
+ int err;
+
+ ts = kzalloc(sizeof(struct h3600_dev), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ts || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
- if (serio->type != (SERIO_RS232 | SERIO_H3600))
- return;
-
- if (!(ts = kmalloc(sizeof(struct h3600_dev), GFP_KERNEL)))
- return;
-
- memset(ts, 0, sizeof(struct h3600_dev));
-
- init_input_dev(&ts->dev);
+ ts->serio = serio;
+ ts->dev = input_dev;
+ snprintf(ts->phys, sizeof(ts->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "H3600 TouchScreen";
+ input_dev->phys = ts->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_H3600;
+ input_dev->id.product = 0x0666; /* FIXME !!! We can ask the hardware */
+ input_dev->id.version = 0x0100;
+ input_dev->cdev.dev = &serio->dev;
+ input_dev->private = ts;
+
+ input_dev->event = h3600ts_event;
+
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_LED) | BIT(EV_PWR);
+ input_dev->ledbit[0] = BIT(LED_SLEEP);
+ input_set_abs_params(input_dev, ABS_X, 60, 985, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 35, 1024, 0, 0);
+
+ set_bit(KEY_RECORD, input_dev->keybit);
+ set_bit(KEY_Q, input_dev->keybit);
+ set_bit(KEY_PROG1, input_dev->keybit);
+ set_bit(KEY_PROG2, input_dev->keybit);
+ set_bit(KEY_PROG3, input_dev->keybit);
+ set_bit(KEY_UP, input_dev->keybit);
+ set_bit(KEY_RIGHT, input_dev->keybit);
+ set_bit(KEY_LEFT, input_dev->keybit);
+ set_bit(KEY_DOWN, input_dev->keybit);
+ set_bit(KEY_ENTER, input_dev->keybit);
+ set_bit(KEY_SUSPEND, input_dev->keybit);
+ set_bit(BTN_TOUCH, input_dev->keybit);
/* 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 );
+ 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)) {
+ if (request_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, action_button_handler,
+ IRQF_SHARED | IRQF_DISABLED, "h3600_action", &ts->dev)) {
printk(KERN_ERR "h3600ts.c: Could not allocate Action Button IRQ!\n");
- kfree(ts);
- return;
+ err = -EBUSY;
+ goto fail2;
}
- 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);
+ if (request_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, npower_button_handler,
+ IRQF_SHARED | IRQF_DISABLED, "h3600_suspend", &ts->dev)) {
printk(KERN_ERR "h3600ts.c: Could not allocate Power Button IRQ!\n");
- kfree(ts);
- return;
+ err = -EBUSY;
+ goto fail3;
}
- /* 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.absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
- ts->dev.ledbit[0] = BIT(LED_SLEEP);
- ts->dev.absmin[ABS_X] = 60; ts->dev.absmin[ABS_Y] = 35;
- ts->dev.absmax[ABS_X] = 985; ts->dev.absmax[ABS_Y] = 1024;
- ts->dev.absfuzz[ABS_X] = 0; ts->dev.absfuzz[ABS_Y] = 0;
+ serio_set_drvdata(serio, ts);
- ts->serio = serio;
- serio->private = ts;
-
- 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);
-
- 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;
-
- if (serio_open(serio, dev)) {
- free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, ts);
- free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts);
- kfree(ts);
- return;
- }
+ err = serio_open(serio, drv);
+ if (err)
+ return err;
//h3600_flite_control(1, 25); /* default brightness */
-#ifdef CONFIG_PM
- ts->dev.pm_dev = pm_register(PM_ILLUMINATION_DEV, PM_SYS_LIGHT,
- h3600ts_pm_callback);
- printk("registered pm callback\n");
-#endif
- input_register_device(&ts->dev);
+ input_register_device(ts->dev);
- printk(KERN_INFO "input: %s on %s\n", h3600_name, serio->phys);
+ return 0;
+
+fail3: free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts->dev);
+fail2: free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, ts->dev);
+fail1: serio_set_drvdata(serio, NULL);
+ input_free_device(input_dev);
+ kfree(ts);
+ return err;
}
/*
static void h3600ts_disconnect(struct serio *serio)
{
- struct h3600_dev *ts = serio->private;
-
- free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, &ts->dev);
- free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, &ts->dev);
- input_unregister_device(&ts->dev);
+ 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_get_device(ts->dev);
+ input_unregister_device(ts->dev);
serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(ts->dev);
kfree(ts);
}
/*
- * The serio device structure.
+ * The serio driver structure.
*/
-static struct serio_dev h3600ts_dev = {
- .interrupt = h3600ts_interrupt,
- .connect = h3600ts_connect,
- .disconnect = h3600ts_disconnect,
+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,
};
/*
static int __init h3600ts_init(void)
{
- serio_register_device(&h3600ts_dev);
- return 0;
+ return serio_register_driver(&h3600ts_drv);
}
static void __exit h3600ts_exit(void)
{
- serio_unregister_device(&h3600ts_dev);
+ serio_unregister_driver(&h3600ts_drv);
}
module_init(h3600ts_init);
git://git.onelab.eu / linux-2.6.git / blobdiff