65 struct spaceball {  struct
78 static void spaceball_process_packet(struct spaceball* spaceball)  in spaceball_process_packet()  argument
80 	struct input_dev *dev = spaceball->dev;  in spaceball_process_packet()
81 	unsigned char *data = spaceball->data;  in spaceball_process_packet()
84 	if (spaceball->idx < 2) return;  in spaceball_process_packet()
86 	switch (spaceball->data[0]) {  in spaceball_process_packet()
89 			if (spaceball->idx != 15) return;  in spaceball_process_packet()
96 			if (spaceball->idx != 3) return;  in spaceball_process_packet()
108 			if (spaceball->idx != 3) return;  in spaceball_process_packet()
125 			spaceball->data[spaceball->idx - 1] = 0;  in spaceball_process_packet()
126 			printk(KERN_ERR "spaceball: Device error. [%s]\n", spaceball->data + 1);  in spaceball_process_packet()
130 			spaceball->data[spaceball->idx - 1] = 0;  in spaceball_process_packet()
131 			printk(KERN_ERR "spaceball: Bad command. [%s]\n", spaceball->data + 1);  in spaceball_process_packet()
147 	struct spaceball *spaceball = serio_get_drvdata(serio);  in spaceball_interrupt()  local
151 			spaceball_process_packet(spaceball);  in spaceball_interrupt()
152 			spaceball->idx = 0;  in spaceball_interrupt()
153 			spaceball->escape = 0;  in spaceball_interrupt()
156 			if (!spaceball->escape) {  in spaceball_interrupt()
157 				spaceball->escape = 1;  in spaceball_interrupt()
160 			spaceball->escape = 0;  in spaceball_interrupt()
165 			if (spaceball->escape) {  in spaceball_interrupt()
166 				spaceball->escape = 0;  in spaceball_interrupt()
171 			if (spaceball->escape)  in spaceball_interrupt()
172 				spaceball->escape = 0;  in spaceball_interrupt()
173 			if (spaceball->idx < SPACEBALL_MAX_LENGTH)  in spaceball_interrupt()
174 				spaceball->data[spaceball->idx++] = data;  in spaceball_interrupt()
186 	struct spaceball* spaceball = serio_get_drvdata(serio);  in spaceball_disconnect()  local
190 	input_unregister_device(spaceball->dev);  in spaceball_disconnect()
191 	kfree(spaceball);  in spaceball_disconnect()
202 	struct spaceball *spaceball;  in spaceball_connect()  local
210 	spaceball = kmalloc(sizeof(struct spaceball), GFP_KERNEL);  in spaceball_connect()
212 	if (!spaceball || !input_dev)  in spaceball_connect()
215 	spaceball->dev = input_dev;  in spaceball_connect()
216 	snprintf(spaceball->phys, sizeof(spaceball->phys), "%s/input0", serio->phys);  in spaceball_connect()
219 	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()