#include <linux/gameport.h>
#include <linux/input.h>
+#define DRIVER_DESC "Creative Labs Blaster GamePad Cobra driver"
+
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
-MODULE_DESCRIPTION("Creative Labs Blaster GamePad Cobra driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
#define COBRA_MAX_STROBE 45 /* 45 us max wait for first strobe */
-#define COBRA_REFRESH_TIME HZ/50 /* 20 ms between reads */
#define COBRA_LENGTH 36
static char* cobra_name = "Creative Labs Blaster GamePad Cobra";
struct cobra {
struct gameport *gameport;
- struct timer_list timer;
struct input_dev dev[2];
- int used;
int reads;
int bads;
unsigned char exists;
return ret;
}
-static void cobra_timer(unsigned long private)
+static void cobra_poll(struct gameport *gameport)
{
- struct cobra *cobra = (void *) private;
+ struct cobra *cobra = gameport_get_drvdata(gameport);
struct input_dev *dev;
unsigned int data[2];
int i, j, r;
cobra->reads++;
- if ((r = cobra_read_packet(cobra->gameport, data)) != cobra->exists)
+ if ((r = cobra_read_packet(gameport, data)) != cobra->exists) {
cobra->bads++;
- else
+ return;
+ }
for (i = 0; i < 2; i++)
if (cobra->exists & r & (1 << i)) {
input_sync(dev);
}
-
- mod_timer(&cobra->timer, jiffies + COBRA_REFRESH_TIME);
}
static int cobra_open(struct input_dev *dev)
{
struct cobra *cobra = dev->private;
- if (!cobra->used++)
- mod_timer(&cobra->timer, jiffies + COBRA_REFRESH_TIME);
+
+ gameport_start_polling(cobra->gameport);
return 0;
}
static void cobra_close(struct input_dev *dev)
{
struct cobra *cobra = dev->private;
- if (!--cobra->used)
- del_timer(&cobra->timer);
+
+ gameport_stop_polling(cobra->gameport);
}
-static void cobra_connect(struct gameport *gameport, struct gameport_dev *dev)
+static int cobra_connect(struct gameport *gameport, struct gameport_driver *drv)
{
struct cobra *cobra;
unsigned int data[2];
int i, j;
+ int err;
- if (!(cobra = kmalloc(sizeof(struct cobra), GFP_KERNEL)))
- return;
- memset(cobra, 0, sizeof(struct cobra));
-
- gameport->private = cobra;
+ if (!(cobra = kcalloc(1, sizeof(struct cobra), GFP_KERNEL)))
+ return -ENOMEM;
cobra->gameport = gameport;
- init_timer(&cobra->timer);
- cobra->timer.data = (long) cobra;
- cobra->timer.function = cobra_timer;
- if (gameport_open(gameport, dev, GAMEPORT_MODE_RAW))
+ gameport_set_drvdata(gameport, cobra);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
goto fail1;
cobra->exists = cobra_read_packet(gameport, data);
cobra->exists &= ~(1 << i);
}
- if (!cobra->exists)
+ if (!cobra->exists) {
+ err = -ENODEV;
goto fail2;
+ }
+
+ gameport_set_poll_handler(gameport, cobra_poll);
+ gameport_set_poll_interval(gameport, 20);
for (i = 0; i < 2; i++)
if ((cobra->exists >> i) & 1) {
cobra->dev[i].id.version = 0x0100;
cobra->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
- cobra->dev[i].absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
+
+ input_set_abs_params(&cobra->dev[i], ABS_X, -1, 1, 0, 0);
+ input_set_abs_params(&cobra->dev[i], ABS_Y, -1, 1, 0, 0);
for (j = 0; cobra_btn[j]; j++)
set_bit(cobra_btn[j], cobra->dev[i].keybit);
- cobra->dev[i].absmin[ABS_X] = -1; cobra->dev[i].absmax[ABS_X] = 1;
- cobra->dev[i].absmin[ABS_Y] = -1; cobra->dev[i].absmax[ABS_Y] = 1;
-
- input_register_device(cobra->dev + i);
+ input_register_device(&cobra->dev[i]);
printk(KERN_INFO "input: %s on %s\n", cobra_name, gameport->phys);
}
- return;
+ return 0;
+
fail2: gameport_close(gameport);
-fail1: kfree(cobra);
+fail1: gameport_set_drvdata(gameport, NULL);
+ kfree(cobra);
+ return err;
}
static void cobra_disconnect(struct gameport *gameport)
{
+ struct cobra *cobra = gameport_get_drvdata(gameport);
int i;
- struct cobra *cobra = gameport->private;
for (i = 0; i < 2; i++)
if ((cobra->exists >> i) & 1)
input_unregister_device(cobra->dev + i);
gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
kfree(cobra);
}
-static struct gameport_dev cobra_dev = {
- .connect = cobra_connect,
- .disconnect = cobra_disconnect,
+static struct gameport_driver cobra_drv = {
+ .driver = {
+ .name = "cobra",
+ },
+ .description = DRIVER_DESC,
+ .connect = cobra_connect,
+ .disconnect = cobra_disconnect,
};
-int __init cobra_init(void)
+static int __init cobra_init(void)
{
- gameport_register_device(&cobra_dev);
+ gameport_register_driver(&cobra_drv);
return 0;
}
-void __exit cobra_exit(void)
+static void __exit cobra_exit(void)
{
- gameport_unregister_device(&cobra_dev);
+ gameport_unregister_driver(&cobra_drv);
}
module_init(cobra_init);