53 struct spaceball {  struct
66 static void spaceball_process_packet(struct spaceball* spaceball)  in spaceball_process_packet()  argument
68 	struct input_dev *dev = spaceball->dev;  in spaceball_process_packet()
69 	unsigned char *data = spaceball->data;  in spaceball_process_packet()
72 	if (spaceball->idx < 2) return;  in spaceball_process_packet()
74 	switch (spaceball->data[0]) {  in spaceball_process_packet()
77 			if (spaceball->idx != 15) return;  in spaceball_process_packet()
84 			if (spaceball->idx != 3) return;  in spaceball_process_packet()
96 			if (spaceball->idx != 3) return;  in spaceball_process_packet()
113 			spaceball->data[spaceball->idx - 1] = 0;  in spaceball_process_packet()
114 			printk(KERN_ERR "spaceball: Device error. [%s]\n", spaceball->data + 1);  in spaceball_process_packet()
118 			spaceball->data[spaceball->idx - 1] = 0;  in spaceball_process_packet()
119 			printk(KERN_ERR "spaceball: Bad command. [%s]\n", spaceball->data + 1);  in spaceball_process_packet()
135 	struct spaceball *spaceball = serio_get_drvdata(serio);  in spaceball_interrupt()  local
139 			spaceball_process_packet(spaceball);  in spaceball_interrupt()
140 			spaceball->idx = 0;  in spaceball_interrupt()
141 			spaceball->escape = 0;  in spaceball_interrupt()
144 			if (!spaceball->escape) {  in spaceball_interrupt()
145 				spaceball->escape = 1;  in spaceball_interrupt()
148 			spaceball->escape = 0;  in spaceball_interrupt()
153 			if (spaceball->escape) {  in spaceball_interrupt()
154 				spaceball->escape = 0;  in spaceball_interrupt()
159 			if (spaceball->escape)  in spaceball_interrupt()
160 				spaceball->escape = 0;  in spaceball_interrupt()
161 			if (spaceball->idx < SPACEBALL_MAX_LENGTH)  in spaceball_interrupt()
162 				spaceball->data[spaceball->idx++] = data;  in spaceball_interrupt()
174 	struct spaceball* spaceball = serio_get_drvdata(serio);  in spaceball_disconnect()  local
178 	input_unregister_device(spaceball->dev);  in spaceball_disconnect()
179 	kfree(spaceball);  in spaceball_disconnect()
190 	struct spaceball *spaceball;  in spaceball_connect()  local
198 	spaceball = kmalloc(sizeof(struct spaceball), GFP_KERNEL);  in spaceball_connect()
200 	if (!spaceball || !input_dev)  in spaceball_connect()
203 	spaceball->dev = input_dev;  in spaceball_connect()
204 	snprintf(spaceball->phys, sizeof(spaceball->phys), "%s/input0", serio->phys);  in spaceball_connect()
207 	input_dev->phys = spaceball->phys;  in spaceball_connect()
240 	serio_set_drvdata(serio, spaceball);  in spaceball_connect()
246 	err = input_register_device(spaceball->dev);  in spaceball_connect()
255 	kfree(spaceball);  in spaceball_connect()