54 struct spaceball {  struct
67 static void spaceball_process_packet(struct spaceball* spaceball)  in spaceball_process_packet()  argument
69 	struct input_dev *dev = spaceball->dev;  in spaceball_process_packet()
70 	unsigned char *data = spaceball->data;  in spaceball_process_packet()
73 	if (spaceball->idx < 2) return;  in spaceball_process_packet()
75 	switch (spaceball->data[0]) {  in spaceball_process_packet()
78 			if (spaceball->idx != 15) return;  in spaceball_process_packet()
91 			if (spaceball->idx != 3) return;  in spaceball_process_packet()
103 			if (spaceball->idx != 3) return;  in spaceball_process_packet()
120 			spaceball->data[spaceball->idx - 1] = 0;  in spaceball_process_packet()
121 			printk(KERN_ERR "spaceball: Device error. [%s]\n", spaceball->data + 1);  in spaceball_process_packet()
125 			spaceball->data[spaceball->idx - 1] = 0;  in spaceball_process_packet()
126 			printk(KERN_ERR "spaceball: Bad command. [%s]\n", spaceball->data + 1);  in spaceball_process_packet()
142 	struct spaceball *spaceball = serio_get_drvdata(serio);  in spaceball_interrupt()  local
146 			spaceball_process_packet(spaceball);  in spaceball_interrupt()
147 			spaceball->idx = 0;  in spaceball_interrupt()
148 			spaceball->escape = 0;  in spaceball_interrupt()
151 			if (!spaceball->escape) {  in spaceball_interrupt()
152 				spaceball->escape = 1;  in spaceball_interrupt()
155 			spaceball->escape = 0;  in spaceball_interrupt()
160 			if (spaceball->escape) {  in spaceball_interrupt()
161 				spaceball->escape = 0;  in spaceball_interrupt()
166 			if (spaceball->escape)  in spaceball_interrupt()
167 				spaceball->escape = 0;  in spaceball_interrupt()
168 			if (spaceball->idx < SPACEBALL_MAX_LENGTH)  in spaceball_interrupt()
169 				spaceball->data[spaceball->idx++] = data;  in spaceball_interrupt()
181 	struct spaceball* spaceball = serio_get_drvdata(serio);  in spaceball_disconnect()  local
185 	input_unregister_device(spaceball->dev);  in spaceball_disconnect()
186 	kfree(spaceball);  in spaceball_disconnect()
197 	struct spaceball *spaceball;  in spaceball_connect()  local
205 	spaceball = kmalloc(sizeof(struct spaceball), GFP_KERNEL);  in spaceball_connect()
207 	if (!spaceball || !input_dev)  in spaceball_connect()
210 	spaceball->dev = input_dev;  in spaceball_connect()
211 	snprintf(spaceball->phys, sizeof(spaceball->phys), "%s/input0", serio->phys);  in spaceball_connect()
214 	input_dev->phys = spaceball->phys;  in spaceball_connect()
247 	serio_set_drvdata(serio, spaceball);  in spaceball_connect()
253 	err = input_register_device(spaceball->dev);  in spaceball_connect()
262 	kfree(spaceball);  in spaceball_connect()