/*
* $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 <asm/arch/hardware.h>
#include <asm/arch/irqs.h>
+MODULE_AUTHOR("James Simmons <jsimmons@transvirtual.com>");
+MODULE_DESCRIPTION("H3600 touchscreen driver");
+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 */
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, 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 void npower_button_handler(int irq, void *dev_id, struct pt_regs *regs)
+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
+ /*
+ * 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
* 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 */
+ /* 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,
+static int h3600ts_pm_callback(struct pm_dev *pm_dev, pm_request_t req,
void *data)
{
- struct input_dev *dev = (struct input_dev *) data;
+ struct input_dev *dev = (struct input_dev *) data;
switch (req) {
case PM_SUSPEND: /* enter D1-D3 */
/*
* 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)
{
Note: This is true for non interrupt generated key events.
*/
case KEYBD_ID:
- down = (ts->buf[0] & 0x80) ? 0 : 1;
+ down = (ts->buf[0] & 0x80) ? 0 : 1;
switch (ts->buf[0] & 0x7f) {
case H3600_SCANCODE_RECORD:
case H3600_SCANCODE_CONTACTS:
key = KEY_PROG2;
break;
- case H3600_SCANCODE_Q:
+ case H3600_SCANCODE_Q:
key = KEY_Q;
break;
case H3600_SCANCODE_START:
key = KEY_DOWN;
break;
default:
- key = 0;
- }
- if (key)
+ key = 0;
+ }
+ if (key)
input_report_key(dev, key, down);
break;
/*
* byte 0 1 2 3
*/
case TOUCHS_ID:
- if (!touched) {
+ 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];
} else {
input_report_key(dev, BTN_TOUCH, 0);
touched = 0;
- }
+ }
break;
default:
/* Send a non input event elsewhere */
/*
* h3600ts_event() handles events from the input module.
*/
-static int h3600ts_event(struct input_dev *dev, unsigned int type,
+static int h3600ts_event(struct input_dev *dev, unsigned int type,
unsigned int code, int value)
{
struct h3600_dev *ts = dev->private;
// ts->serio->write(ts->serio, SOME_CMD);
return 0;
}
- }
+ }
return -1;
}
#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 pt_regs *regs)
{
struct h3600_dev *ts = serio->private;
/*
- * 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;
+ state = STATE_ID;
+ break;
case STATE_ID:
ts->event = (data & 0xf0) >> 4;
ts->len = (data & 0xf);
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)
+ 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);
+ if (data == CHAR_EOF || data == ts->chksum)
+ h3600ts_process_packet(ts, regs);
break;
default:
printk("Error3\n");
break;
}
+
+ return IRQ_HANDLED;
}
/*
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 );
+ 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,
+ 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);
}
if (request_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, npower_button_handler,
- SA_SHIRQ | SA_INTERRUPT | SA_SAMPLE_RANDOM,
+ 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;
}
+
/* 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;
-
- ts->serio = serio;
- serio->private = ts;
+ 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);
ts->dev.keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH);
ts->dev.keybit[LONG(KEY_SUSPEND)] |= BIT(KEY_SUSPEND);
+ ts->serio = serio;
+ serio->private = ts;
+
sprintf(ts->phys, "%s/input0", serio->phys);
ts->dev.event = h3600ts_event;
//h3600_flite_control(1, 25); /* default brightness */
#ifdef CONFIG_PM
- ts->dev.pm_dev = pm_register(PM_ILLUMINATION_DEV, PM_SYS_LIGHT,
+ ts->dev.pm_dev = pm_register(PM_ILLUMINATION_DEV, PM_SYS_LIGHT,
h3600ts_pm_callback);
printk("registered pm callback\n");
#endif
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);
git://git.onelab.eu / linux-2.6.git / blobdiff