69 struct spaceball {  struct
82 static void spaceball_process_packet(struct spaceball* spaceball)  in spaceball_process_packet()  argument
84 	struct input_dev *dev = spaceball->dev;  in spaceball_process_packet()
85 	unsigned char *data = spaceball->data;  in spaceball_process_packet()
88 	if (spaceball->idx < 2) return;  in spaceball_process_packet()
90 	switch (spaceball->data[0]) {  in spaceball_process_packet()
93 			if (spaceball->idx != 15) return;  in spaceball_process_packet()
100 			if (spaceball->idx != 3) return;  in spaceball_process_packet()
112 			if (spaceball->idx != 3) return;  in spaceball_process_packet()
129 			spaceball->data[spaceball->idx - 1] = 0;  in spaceball_process_packet()
130 			printk(KERN_ERR "spaceball: Device error. [%s]\n", spaceball->data + 1);  in spaceball_process_packet()
134 			spaceball->data[spaceball->idx - 1] = 0;  in spaceball_process_packet()
135 			printk(KERN_ERR "spaceball: Bad command. [%s]\n", spaceball->data + 1);  in spaceball_process_packet()
151 	struct spaceball *spaceball = serio_get_drvdata(serio);  in spaceball_interrupt()  local
155 			spaceball_process_packet(spaceball);  in spaceball_interrupt()
156 			spaceball->idx = 0;  in spaceball_interrupt()
157 			spaceball->escape = 0;  in spaceball_interrupt()
160 			if (!spaceball->escape) {  in spaceball_interrupt()
161 				spaceball->escape = 1;  in spaceball_interrupt()
164 			spaceball->escape = 0;  in spaceball_interrupt()
168 			if (spaceball->escape) {  in spaceball_interrupt()
169 				spaceball->escape = 0;  in spaceball_interrupt()
173 			if (spaceball->escape)  in spaceball_interrupt()
174 				spaceball->escape = 0;  in spaceball_interrupt()
175 			if (spaceball->idx < SPACEBALL_MAX_LENGTH)  in spaceball_interrupt()
176 				spaceball->data[spaceball->idx++] = data;  in spaceball_interrupt()
188 	struct spaceball* spaceball = serio_get_drvdata(serio);  in spaceball_disconnect()  local
192 	input_unregister_device(spaceball->dev);  in spaceball_disconnect()
193 	kfree(spaceball);  in spaceball_disconnect()
204 	struct spaceball *spaceball;  in spaceball_connect()  local
212 	spaceball = kmalloc(sizeof(struct spaceball), GFP_KERNEL);  in spaceball_connect()
214 	if (!spaceball || !input_dev)  in spaceball_connect()
217 	spaceball->dev = input_dev;  in spaceball_connect()
218 	snprintf(spaceball->phys, sizeof(spaceball->phys), "%s/input0", serio->phys);  in spaceball_connect()
221 	input_dev->phys = spaceball->phys;  in spaceball_connect()
252 	serio_set_drvdata(serio, spaceball);  in spaceball_connect()
258 	err = input_register_device(spaceball->dev);  in spaceball_connect()
267 	kfree(spaceball);  in spaceball_connect()