60 static struct tgfx {  struct
78 	struct tgfx *tgfx = from_timer(tgfx, t, timer);  in tgfx_timer()  argument
83 		if (tgfx->sticks & (1 << i)) {  in tgfx_timer()
85 			dev = tgfx->dev[i];  in tgfx_timer()
87 			parport_write_data(tgfx->pd->port, ~(1 << i));  in tgfx_timer()
88 			data1 = parport_read_status(tgfx->pd->port) ^ 0x7f;  in tgfx_timer()
89 			data2 = parport_read_control(tgfx->pd->port) ^ 0x04;	/* CAVEAT parport */  in tgfx_timer()
103 	mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);  in tgfx_timer()
108 	struct tgfx *tgfx = input_get_drvdata(dev);  in tgfx_open()  local
111 	err = mutex_lock_interruptible(&tgfx->sem);  in tgfx_open()
115 	if (!tgfx->used++) {  in tgfx_open()
116 		parport_claim(tgfx->pd);  in tgfx_open()
117 		parport_write_control(tgfx->pd->port, 0x04);  in tgfx_open()
118 		mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);  in tgfx_open()
121 	mutex_unlock(&tgfx->sem);  in tgfx_open()
127 	struct tgfx *tgfx = input_get_drvdata(dev);  in tgfx_close()  local
129 	mutex_lock(&tgfx->sem);  in tgfx_close()
130 	if (!--tgfx->used) {  in tgfx_close()
131 		del_timer_sync(&tgfx->timer);  in tgfx_close()
132 		parport_write_control(tgfx->pd->port, 0x00);  in tgfx_close()
133 		parport_release(tgfx->pd);  in tgfx_close()
135 	mutex_unlock(&tgfx->sem);  in tgfx_close()
146 	struct tgfx *tgfx;  in tgfx_attach()  local
178 	tgfx = kzalloc(sizeof(struct tgfx), GFP_KERNEL);  in tgfx_attach()
179 	if (!tgfx) {  in tgfx_attach()
184 	mutex_init(&tgfx->sem);  in tgfx_attach()
185 	tgfx->pd = pd;  in tgfx_attach()
186 	tgfx->parportno = pp->number;  in tgfx_attach()
187 	timer_setup(&tgfx->timer, tgfx_timer, 0);  in tgfx_attach()
198 		tgfx->dev[i] = input_dev = input_allocate_device();  in tgfx_attach()
204 		tgfx->sticks |= (1 << i);  in tgfx_attach()
205 		snprintf(tgfx->name[i], sizeof(tgfx->name[i]),  in tgfx_attach()
207 		snprintf(tgfx->phys[i], sizeof(tgfx->phys[i]),  in tgfx_attach()
208 			 "%s/input%d", tgfx->pd->port->name, i);  in tgfx_attach()
210 		input_dev->name = tgfx->name[i];  in tgfx_attach()
211 		input_dev->phys = tgfx->phys[i];  in tgfx_attach()
217 		input_set_drvdata(input_dev, tgfx);  in tgfx_attach()
229 		if (input_register_device(tgfx->dev[i]))  in tgfx_attach()
233         if (!tgfx->sticks) {  in tgfx_attach()
238 	tgfx_base[port_idx] = tgfx;  in tgfx_attach()
242 	input_free_device(tgfx->dev[i]);  in tgfx_attach()
245 		if (tgfx->dev[i])  in tgfx_attach()
246 			input_unregister_device(tgfx->dev[i]);  in tgfx_attach()
248 	kfree(tgfx);  in tgfx_attach()
256 	struct tgfx *tgfx;  in tgfx_detach()  local
266 	tgfx = tgfx_base[i];  in tgfx_detach()
270 		if (tgfx->dev[i])  in tgfx_detach()
271 			input_unregister_device(tgfx->dev[i]);  in tgfx_detach()
272 	parport_unregister_device(tgfx->pd);  in tgfx_detach()
273 	kfree(tgfx);  in tgfx_detach()