76 static struct tgfx {  struct
94 	struct tgfx *tgfx = (void *) private;  in tgfx_timer()  argument
99 		if (tgfx->sticks & (1 << i)) {  in tgfx_timer()
101 			dev = tgfx->dev[i];  in tgfx_timer()
103 			parport_write_data(tgfx->pd->port, ~(1 << i));  in tgfx_timer()
104 			data1 = parport_read_status(tgfx->pd->port) ^ 0x7f;  in tgfx_timer()
105 			data2 = parport_read_control(tgfx->pd->port) ^ 0x04;	/* CAVEAT parport */  in tgfx_timer()
119 	mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);  in tgfx_timer()
124 	struct tgfx *tgfx = input_get_drvdata(dev);  in tgfx_open()  local
127 	err = mutex_lock_interruptible(&tgfx->sem);  in tgfx_open()
131 	if (!tgfx->used++) {  in tgfx_open()
132 		parport_claim(tgfx->pd);  in tgfx_open()
133 		parport_write_control(tgfx->pd->port, 0x04);  in tgfx_open()
134 		mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);  in tgfx_open()
137 	mutex_unlock(&tgfx->sem);  in tgfx_open()
143 	struct tgfx *tgfx = input_get_drvdata(dev);  in tgfx_close()  local
145 	mutex_lock(&tgfx->sem);  in tgfx_close()
146 	if (!--tgfx->used) {  in tgfx_close()
147 		del_timer_sync(&tgfx->timer);  in tgfx_close()
148 		parport_write_control(tgfx->pd->port, 0x00);  in tgfx_close()
149 		parport_release(tgfx->pd);  in tgfx_close()
151 	mutex_unlock(&tgfx->sem);  in tgfx_close()
162 	struct tgfx *tgfx;  in tgfx_attach()  local
194 	tgfx = kzalloc(sizeof(struct tgfx), GFP_KERNEL);  in tgfx_attach()
195 	if (!tgfx) {  in tgfx_attach()
200 	mutex_init(&tgfx->sem);  in tgfx_attach()
201 	tgfx->pd = pd;  in tgfx_attach()
202 	tgfx->parportno = pp->number;  in tgfx_attach()
203 	init_timer(&tgfx->timer);  in tgfx_attach()
204 	tgfx->timer.data = (long) tgfx;  in tgfx_attach()
205 	tgfx->timer.function = tgfx_timer;  in tgfx_attach()
216 		tgfx->dev[i] = input_dev = input_allocate_device();  in tgfx_attach()
222 		tgfx->sticks |= (1 << i);  in tgfx_attach()
223 		snprintf(tgfx->name[i], sizeof(tgfx->name[i]),  in tgfx_attach()
225 		snprintf(tgfx->phys[i], sizeof(tgfx->phys[i]),  in tgfx_attach()
226 			 "%s/input%d", tgfx->pd->port->name, i);  in tgfx_attach()
228 		input_dev->name = tgfx->name[i];  in tgfx_attach()
229 		input_dev->phys = tgfx->phys[i];  in tgfx_attach()
235 		input_set_drvdata(input_dev, tgfx);  in tgfx_attach()
247 		if (input_register_device(tgfx->dev[i]))  in tgfx_attach()
251         if (!tgfx->sticks) {  in tgfx_attach()
256 	tgfx_base[port_idx] = tgfx;  in tgfx_attach()
260 	input_free_device(tgfx->dev[i]);  in tgfx_attach()
263 		if (tgfx->dev[i])  in tgfx_attach()
264 			input_unregister_device(tgfx->dev[i]);  in tgfx_attach()
266 	kfree(tgfx);  in tgfx_attach()
274 	struct tgfx *tgfx;  in tgfx_detach()  local
284 	tgfx = tgfx_base[i];  in tgfx_detach()
288 		if (tgfx->dev[i])  in tgfx_detach()
289 			input_unregister_device(tgfx->dev[i]);  in tgfx_detach()
290 	parport_unregister_device(tgfx->pd);  in tgfx_detach()
291 	kfree(tgfx);  in tgfx_detach()