#include <linux/input.h>
#include <linux/gameport.h>
+#define DRIVER_DESC "Genius Flight 2000 joystick driver"
+
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
-MODULE_DESCRIPTION("Genius Flight 2000 joystick driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
#define GF2K_START 400 /* The time we wait for the first bit [400 us] */
#define GF2K_STROBE 40 /* The time we wait for the first bit [40 us] */
#define GF2K_TIMEOUT 4 /* Wait for everything to settle [4 ms] */
#define GF2K_LENGTH 80 /* Max number of triplets in a packet */
-#define GF2K_REFRESH HZ/50 /* Time between joystick polls [20 ms] */
/*
* Genius joystick ids ...
struct gf2k {
struct gameport *gameport;
- struct timer_list timer;
struct input_dev dev;
int reads;
int bads;
- int used;
unsigned char id;
unsigned char length;
char phys[32];
}
/*
- * gf2k_timer() reads and analyzes Genius joystick data.
+ * gf2k_poll() reads and analyzes Genius joystick data.
*/
-static void gf2k_timer(unsigned long private)
+static void gf2k_poll(struct gameport *gameport)
{
- struct gf2k *gf2k = (void *) private;
+ struct gf2k *gf2k = gameport_get_drvdata(gameport);
unsigned char data[GF2K_LENGTH];
gf2k->reads++;
- if (gf2k_read_packet(gf2k->gameport, gf2k_length[gf2k->id], data) < gf2k_length[gf2k->id]) {
+ if (gf2k_read_packet(gf2k->gameport, gf2k_length[gf2k->id], data) < gf2k_length[gf2k->id])
gf2k->bads++;
- } else gf2k_read(gf2k, data);
-
- mod_timer(&gf2k->timer, jiffies + GF2K_REFRESH);
+ else
+ gf2k_read(gf2k, data);
}
static int gf2k_open(struct input_dev *dev)
{
struct gf2k *gf2k = dev->private;
- if (!gf2k->used++)
- mod_timer(&gf2k->timer, jiffies + GF2K_REFRESH);
+
+ gameport_start_polling(gf2k->gameport);
return 0;
}
static void gf2k_close(struct input_dev *dev)
{
struct gf2k *gf2k = dev->private;
- if (!--gf2k->used)
- del_timer(&gf2k->timer);
+
+ gameport_stop_polling(gf2k->gameport);
}
/*
* gf2k_connect() probes for Genius id joysticks.
*/
-static void gf2k_connect(struct gameport *gameport, struct gameport_dev *dev)
+static int gf2k_connect(struct gameport *gameport, struct gameport_driver *drv)
{
struct gf2k *gf2k;
unsigned char data[GF2K_LENGTH];
- int i;
-
- if (!(gf2k = kmalloc(sizeof(struct gf2k), GFP_KERNEL)))
- return;
- memset(gf2k, 0, sizeof(struct gf2k));
+ int i, err;
- gameport->private = gf2k;
+ if (!(gf2k = kcalloc(1, sizeof(struct gf2k), GFP_KERNEL)))
+ return -ENOMEM;
gf2k->gameport = gameport;
- init_timer(&gf2k->timer);
- gf2k->timer.data = (long) gf2k;
- gf2k->timer.function = gf2k_timer;
- if (gameport_open(gameport, dev, GAMEPORT_MODE_RAW))
+ gameport_set_drvdata(gameport, gf2k);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
goto fail1;
gf2k_trigger_seq(gameport, gf2k_seq_reset);
msleep(GF2K_TIMEOUT);
- if (gf2k_read_packet(gameport, GF2K_LENGTH, data) < 12)
+ if (gf2k_read_packet(gameport, GF2K_LENGTH, data) < 12) {
+ err = -ENODEV;
goto fail2;
+ }
- if (!(gf2k->id = GB(7,2,0) | GB(3,3,2) | GB(0,3,5)))
+ if (!(gf2k->id = GB(7,2,0) | GB(3,3,2) | GB(0,3,5))) {
+ err = -ENODEV;
goto fail2;
+ }
#ifdef RESET_WORKS
if ((gf2k->id != (GB(19,2,0) | GB(15,3,2) | GB(12,3,5))) ||
- (gf2k->id != (GB(31,2,0) | GB(27,3,2) | GB(24,3,5))))
+ (gf2k->id != (GB(31,2,0) | GB(27,3,2) | GB(24,3,5)))) {
+ err = -ENODEV;
goto fail2;
+ }
#else
gf2k->id = 6;
#endif
if (gf2k->id > GF2K_ID_MAX || !gf2k_axes[gf2k->id]) {
printk(KERN_WARNING "gf2k.c: Not yet supported joystick on %s. [id: %d type:%s]\n",
gameport->phys, gf2k->id, gf2k->id > GF2K_ID_MAX ? "Unknown" : gf2k_names[gf2k->id]);
+ err = -ENODEV;
goto fail2;
}
+ gameport_set_poll_handler(gameport, gf2k_poll);
+ gameport_set_poll_interval(gameport, 20);
+
sprintf(gf2k->phys, "%s/input0", gameport->phys);
gf2k->length = gf2k_lens[gf2k->id];
input_register_device(&gf2k->dev);
printk(KERN_INFO "input: %s on %s\n", gf2k_names[gf2k->id], gameport->phys);
- return;
+ return 0;
+
fail2: gameport_close(gameport);
-fail1: kfree(gf2k);
+fail1: gameport_set_drvdata(gameport, NULL);
+ kfree(gf2k);
+ return err;
}
static void gf2k_disconnect(struct gameport *gameport)
{
- struct gf2k *gf2k = gameport->private;
+ struct gf2k *gf2k = gameport_get_drvdata(gameport);
+
input_unregister_device(&gf2k->dev);
gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
kfree(gf2k);
}
-static struct gameport_dev gf2k_dev = {
- .connect = gf2k_connect,
- .disconnect = gf2k_disconnect,
+static struct gameport_driver gf2k_drv = {
+ .driver = {
+ .name = "gf2k",
+ },
+ .description = DRIVER_DESC,
+ .connect = gf2k_connect,
+ .disconnect = gf2k_disconnect,
};
-int __init gf2k_init(void)
+static int __init gf2k_init(void)
{
- gameport_register_device(&gf2k_dev);
+ gameport_register_driver(&gf2k_drv);
return 0;
}
-void __exit gf2k_exit(void)
+static void __exit gf2k_exit(void)
{
- gameport_unregister_device(&gf2k_dev);
+ gameport_unregister_driver(&gf2k_drv);
}
module_init(gf2k_init);
git://git.onelab.eu / linux-2.6.git / blobdiff