57 static struct tgfx {  struct
75 	struct tgfx *tgfx = from_timer(tgfx, t, timer);  in tgfx_timer()  argument
80 		if (tgfx->sticks & (1 << i)) {  in tgfx_timer()
82 			dev = tgfx->dev[i];  in tgfx_timer()
84 			parport_write_data(tgfx->pd->port, ~(1 << i));  in tgfx_timer()
85 			data1 = parport_read_status(tgfx->pd->port) ^ 0x7f;  in tgfx_timer()
86 			data2 = parport_read_control(tgfx->pd->port) ^ 0x04;	/* CAVEAT parport */  in tgfx_timer()
100 	mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);  in tgfx_timer()
105 	struct tgfx *tgfx = input_get_drvdata(dev);  in tgfx_open()  local
108 	err = mutex_lock_interruptible(&tgfx->sem);  in tgfx_open()
112 	if (!tgfx->used++) {  in tgfx_open()
113 		parport_claim(tgfx->pd);  in tgfx_open()
114 		parport_write_control(tgfx->pd->port, 0x04);  in tgfx_open()
115 		mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);  in tgfx_open()
118 	mutex_unlock(&tgfx->sem);  in tgfx_open()
124 	struct tgfx *tgfx = input_get_drvdata(dev);  in tgfx_close()  local
126 	mutex_lock(&tgfx->sem);  in tgfx_close()
127 	if (!--tgfx->used) {  in tgfx_close()
128 		del_timer_sync(&tgfx->timer);  in tgfx_close()
129 		parport_write_control(tgfx->pd->port, 0x00);  in tgfx_close()
130 		parport_release(tgfx->pd);  in tgfx_close()
132 	mutex_unlock(&tgfx->sem);  in tgfx_close()
143 	struct tgfx *tgfx;  in tgfx_attach()  local
175 	tgfx = kzalloc(sizeof(struct tgfx), GFP_KERNEL);  in tgfx_attach()
176 	if (!tgfx) {  in tgfx_attach()
181 	mutex_init(&tgfx->sem);  in tgfx_attach()
182 	tgfx->pd = pd;  in tgfx_attach()
183 	tgfx->parportno = pp->number;  in tgfx_attach()
184 	timer_setup(&tgfx->timer, tgfx_timer, 0);  in tgfx_attach()
195 		tgfx->dev[i] = input_dev = input_allocate_device();  in tgfx_attach()
201 		tgfx->sticks |= (1 << i);  in tgfx_attach()
202 		snprintf(tgfx->name[i], sizeof(tgfx->name[i]),  in tgfx_attach()
204 		snprintf(tgfx->phys[i], sizeof(tgfx->phys[i]),  in tgfx_attach()
205 			 "%s/input%d", tgfx->pd->port->name, i);  in tgfx_attach()
207 		input_dev->name = tgfx->name[i];  in tgfx_attach()
208 		input_dev->phys = tgfx->phys[i];  in tgfx_attach()
214 		input_set_drvdata(input_dev, tgfx);  in tgfx_attach()
226 		if (input_register_device(tgfx->dev[i]))  in tgfx_attach()
230         if (!tgfx->sticks) {  in tgfx_attach()
235 	tgfx_base[port_idx] = tgfx;  in tgfx_attach()
239 	input_free_device(tgfx->dev[i]);  in tgfx_attach()
242 		if (tgfx->dev[i])  in tgfx_attach()
243 			input_unregister_device(tgfx->dev[i]);  in tgfx_attach()
245 	kfree(tgfx);  in tgfx_attach()
253 	struct tgfx *tgfx;  in tgfx_detach()  local
263 	tgfx = tgfx_base[i];  in tgfx_detach()
267 		if (tgfx->dev[i])  in tgfx_detach()
268 			input_unregister_device(tgfx->dev[i]);  in tgfx_detach()
269 	parport_unregister_device(tgfx->pd);  in tgfx_detach()
270 	kfree(tgfx);  in tgfx_detach()