51 struct spaceball {  struct
64 static void spaceball_process_packet(struct spaceball* spaceball)  in spaceball_process_packet()  argument
66 	struct input_dev *dev = spaceball->dev;  in spaceball_process_packet()
67 	unsigned char *data = spaceball->data;  in spaceball_process_packet()
70 	if (spaceball->idx < 2) return;  in spaceball_process_packet()
72 	switch (spaceball->data[0]) {  in spaceball_process_packet()
75 			if (spaceball->idx != 15) return;  in spaceball_process_packet()
88 			if (spaceball->idx != 3) return;  in spaceball_process_packet()
100 			if (spaceball->idx != 3) return;  in spaceball_process_packet()
117 			spaceball->data[spaceball->idx - 1] = 0;  in spaceball_process_packet()
118 			printk(KERN_ERR "spaceball: Device error. [%s]\n", spaceball->data + 1);  in spaceball_process_packet()
122 			spaceball->data[spaceball->idx - 1] = 0;  in spaceball_process_packet()
123 			printk(KERN_ERR "spaceball: Bad command. [%s]\n", spaceball->data + 1);  in spaceball_process_packet()
139 	struct spaceball *spaceball = serio_get_drvdata(serio);  in spaceball_interrupt()  local
143 			spaceball_process_packet(spaceball);  in spaceball_interrupt()
144 			spaceball->idx = 0;  in spaceball_interrupt()
145 			spaceball->escape = 0;  in spaceball_interrupt()
148 			if (!spaceball->escape) {  in spaceball_interrupt()
149 				spaceball->escape = 1;  in spaceball_interrupt()
152 			spaceball->escape = 0;  in spaceball_interrupt()
157 			if (spaceball->escape) {  in spaceball_interrupt()
158 				spaceball->escape = 0;  in spaceball_interrupt()
163 			if (spaceball->escape)  in spaceball_interrupt()
164 				spaceball->escape = 0;  in spaceball_interrupt()
165 			if (spaceball->idx < SPACEBALL_MAX_LENGTH)  in spaceball_interrupt()
166 				spaceball->data[spaceball->idx++] = data;  in spaceball_interrupt()
178 	struct spaceball* spaceball = serio_get_drvdata(serio);  in spaceball_disconnect()  local
182 	input_unregister_device(spaceball->dev);  in spaceball_disconnect()
183 	kfree(spaceball);  in spaceball_disconnect()
194 	struct spaceball *spaceball;  in spaceball_connect()  local
202 	spaceball = kmalloc(sizeof(struct spaceball), GFP_KERNEL);  in spaceball_connect()
204 	if (!spaceball || !input_dev)  in spaceball_connect()
207 	spaceball->dev = input_dev;  in spaceball_connect()
208 	snprintf(spaceball->phys, sizeof(spaceball->phys), "%s/input0", serio->phys);  in spaceball_connect()
211 	input_dev->phys = spaceball->phys;  in spaceball_connect()
244 	serio_set_drvdata(serio, spaceball);  in spaceball_connect()
250 	err = input_register_device(spaceball->dev);  in spaceball_connect()
259 	kfree(spaceball);  in spaceball_connect()