#define STINGER_MAX_LENGTH 8
-static char *stinger_name = "Gravis Stinger";
-
/*
* Per-Stinger data.
*/
struct stinger {
- struct input_dev dev;
+ struct input_dev *dev;
int idx;
unsigned char data[STINGER_MAX_LENGTH];
char phys[32];
* Stinger. It updates the data accordingly.
*/
-static void stinger_process_packet(struct stinger *stinger, struct pt_regs *regs)
+static void stinger_process_packet(struct stinger *stinger)
{
- struct input_dev *dev = &stinger->dev;
+ struct input_dev *dev = stinger->dev;
unsigned char *data = stinger->data;
if (!stinger->idx) return;
- input_regs(dev, regs);
-
input_report_key(dev, BTN_A, ((data[0] & 0x20) >> 5));
input_report_key(dev, BTN_B, ((data[0] & 0x10) >> 4));
input_report_key(dev, BTN_C, ((data[0] & 0x08) >> 3));
*/
static irqreturn_t stinger_interrupt(struct serio *serio,
- unsigned char data, unsigned int flags, struct pt_regs *regs)
+ unsigned char data, unsigned int flags)
{
- struct stinger* stinger = serio->private;
+ struct stinger *stinger = serio_get_drvdata(serio);
/* All Stinger packets are 4 bytes */
stinger->data[stinger->idx++] = data;
if (stinger->idx == 4) {
- stinger_process_packet(stinger, regs);
+ stinger_process_packet(stinger);
stinger->idx = 0;
}
static void stinger_disconnect(struct serio *serio)
{
- struct stinger* stinger = serio->private;
- input_unregister_device(&stinger->dev);
+ struct stinger *stinger = serio_get_drvdata(serio);
+
serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(stinger->dev);
kfree(stinger);
}
/*
* stinger_connect() is the routine that is called when someone adds a
- * new serio device. It looks for the Stinger, and if found, registers
- * it as an input device.
+ * new serio device that supports Stinger protocol and registers it as
+ * an input device.
*/
-static void stinger_connect(struct serio *serio, struct serio_driver *drv)
+static int stinger_connect(struct serio *serio, struct serio_driver *drv)
{
struct stinger *stinger;
- int i;
-
- if (serio->type != (SERIO_RS232 | SERIO_STINGER))
- return;
-
- if (!(stinger = kmalloc(sizeof(struct stinger), GFP_KERNEL)))
- return;
-
- memset(stinger, 0, sizeof(struct stinger));
-
- stinger->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
- stinger->dev.keybit[LONG(BTN_A)] = BIT(BTN_A) | BIT(BTN_B) | BIT(BTN_C) | BIT(BTN_X) | \
- BIT(BTN_Y) | BIT(BTN_Z) | BIT(BTN_TL) | BIT(BTN_TR) | \
- BIT(BTN_START) | BIT(BTN_SELECT);
- stinger->dev.absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
-
- sprintf(stinger->phys, "%s/serio0", serio->phys);
-
- init_input_dev(&stinger->dev);
- stinger->dev.name = stinger_name;
- stinger->dev.phys = stinger->phys;
- stinger->dev.id.bustype = BUS_RS232;
- stinger->dev.id.vendor = SERIO_STINGER;
- stinger->dev.id.product = 0x0001;
- stinger->dev.id.version = 0x0100;
- stinger->dev.dev = &serio->dev;
-
- for (i = 0; i < 2; i++) {
- stinger->dev.absmax[ABS_X+i] = 64;
- stinger->dev.absmin[ABS_X+i] = -64;
- stinger->dev.absflat[ABS_X+i] = 4;
- }
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+
+ stinger = kmalloc(sizeof(struct stinger), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!stinger || !input_dev)
+ goto fail1;
+
+ stinger->dev = input_dev;
+ snprintf(stinger->phys, sizeof(stinger->phys), "%s/serio0", serio->phys);
+
+ input_dev->name = "Gravis Stinger";
+ input_dev->phys = stinger->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_STINGER;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->cdev.dev = &serio->dev;
+ input_dev->private = stinger;
+
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_dev->keybit[LONG(BTN_A)] = BIT(BTN_A) | BIT(BTN_B) | BIT(BTN_C) | BIT(BTN_X) |
+ BIT(BTN_Y) | BIT(BTN_Z) | BIT(BTN_TL) | BIT(BTN_TR) |
+ BIT(BTN_START) | BIT(BTN_SELECT);
+ input_set_abs_params(input_dev, ABS_X, -64, 64, 0, 4);
+ input_set_abs_params(input_dev, ABS_Y, -64, 64, 0, 4);
+
+ serio_set_drvdata(serio, stinger);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(stinger->dev);
+ if (err)
+ goto fail3;
- stinger->dev.private = stinger;
- serio->private = stinger;
-
- if (serio_open(serio, drv)) {
- kfree(stinger);
- return;
- }
-
- input_register_device(&stinger->dev);
-
- printk(KERN_INFO "input: %s on %s\n", stinger_name, serio->phys);
+ return 0;
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(stinger);
+ return err;
}
/*
- * The serio device structure.
+ * The serio driver structure.
*/
+static struct serio_device_id stinger_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_STINGER,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, stinger_serio_ids);
+
static struct serio_driver stinger_drv = {
.driver = {
.name = "stinger",
},
.description = DRIVER_DESC,
+ .id_table = stinger_serio_ids,
.interrupt = stinger_interrupt,
.connect = stinger_connect,
.disconnect = stinger_disconnect,
* The functions for inserting/removing us as a module.
*/
-int __init stinger_init(void)
+static int __init stinger_init(void)
{
- serio_register_driver(&stinger_drv);
- return 0;
+ return serio_register_driver(&stinger_drv);
}
-void __exit stinger_exit(void)
+static void __exit stinger_exit(void)
{
serio_unregister_driver(&stinger_drv);
}