#include <linux/init.h>
#include <linux/gameport.h>
#include <linux/input.h>
+#include <linux/jiffies.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";
-
static int cobra_btn[] = { BTN_START, BTN_SELECT, BTN_TL, BTN_TR, BTN_X, BTN_Y, BTN_Z, BTN_A, BTN_B, BTN_C, BTN_TL2, BTN_TR2, 0 };
struct cobra {
struct gameport *gameport;
- struct timer_list timer;
- struct input_dev dev[2];
- int used;
+ struct input_dev *dev[2];
int reads;
int bads;
unsigned char exists;
r[i] = buf[i] = 0;
t[i] = COBRA_MAX_STROBE;
}
-
+
local_irq_save(flags);
u = gameport_read(gameport);
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)) {
- dev = cobra->dev + i;
+ dev = cobra->dev[i];
input_report_abs(dev, ABS_X, ((data[i] >> 4) & 1) - ((data[i] >> 3) & 1));
input_report_abs(dev, ABS_Y, ((data[i] >> 2) & 1) - ((data[i] >> 1) & 1));
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;
+ struct input_dev *input_dev;
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;
+ cobra = kzalloc(sizeof(struct cobra), GFP_KERNEL);
+ if (!cobra)
+ 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);
- for (i = 0; i < 2; i++)
+ for (i = 0; i < 2; i++)
if ((cobra->exists >> i) & data[i] & 1) {
printk(KERN_WARNING "cobra.c: Device %d on %s has the Ext bit set. ID is: %d"
" Contact vojtech@ucw.cz\n", i, gameport->phys, (data[i] >> 2) & 7);
cobra->exists &= ~(1 << i);
}
- if (!cobra->exists)
+ if (!cobra->exists) {
+ err = -ENODEV;
goto fail2;
+ }
- for (i = 0; i < 2; i++)
- if ((cobra->exists >> i) & 1) {
+ gameport_set_poll_handler(gameport, cobra_poll);
+ gameport_set_poll_interval(gameport, 20);
- sprintf(cobra->phys[i], "%s/input%d", gameport->phys, i);
+ for (i = 0; i < 2; i++) {
+ if (~(cobra->exists >> i) & 1)
+ continue;
- cobra->dev[i].private = cobra;
- cobra->dev[i].open = cobra_open;
- cobra->dev[i].close = cobra_close;
+ cobra->dev[i] = input_dev = input_allocate_device();
+ if (!input_dev) {
+ err = -ENOMEM;
+ goto fail3;
+ }
- cobra->dev[i].name = cobra_name;
- cobra->dev[i].phys = cobra->phys[i];
- cobra->dev[i].id.bustype = BUS_GAMEPORT;
- cobra->dev[i].id.vendor = GAMEPORT_ID_VENDOR_CREATIVE;
- cobra->dev[i].id.product = 0x0008;
- 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);
+ sprintf(cobra->phys[i], "%s/input%d", gameport->phys, i);
- for (j = 0; cobra_btn[j]; j++)
- set_bit(cobra_btn[j], cobra->dev[i].keybit);
+ input_dev->name = "Creative Labs Blaster GamePad Cobra";
+ input_dev->phys = cobra->phys[i];
+ input_dev->id.bustype = BUS_GAMEPORT;
+ input_dev->id.vendor = GAMEPORT_ID_VENDOR_CREATIVE;
+ input_dev->id.product = 0x0008;
+ input_dev->id.version = 0x0100;
+ input_dev->cdev.dev = &gameport->dev;
+ input_dev->private = cobra;
- 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_dev->open = cobra_open;
+ input_dev->close = cobra_close;
- input_register_device(cobra->dev + i);
- printk(KERN_INFO "input: %s on %s\n", cobra_name, gameport->phys);
- }
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_set_abs_params(input_dev, ABS_X, -1, 1, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, -1, 1, 0, 0);
+ for (j = 0; cobra_btn[j]; j++)
+ set_bit(cobra_btn[j], input_dev->keybit);
- return;
-fail2: gameport_close(gameport);
-fail1: kfree(cobra);
+ input_register_device(cobra->dev[i]);
+ }
+
+ return 0;
+
+ fail3: for (i = 0; i < 2; i++)
+ if (cobra->dev[i])
+ input_unregister_device(cobra->dev[i]);
+ fail2: gameport_close(gameport);
+ 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);
+ 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);
git://git.onelab.eu / linux-2.6.git / blobdiff