57 static struct tgfx {  struct
75 	struct tgfx *tgfx = timer_container_of(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
107 	scoped_guard(mutex_intr, &tgfx->sem) {  in tgfx_open()
108 		if (!tgfx->used++) {  in tgfx_open()
109 			parport_claim(tgfx->pd);  in tgfx_open()
110 			parport_write_control(tgfx->pd->port, 0x04);  in tgfx_open()
111 			mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);  in tgfx_open()
122 	struct tgfx *tgfx = input_get_drvdata(dev);  in tgfx_close()  local
124 	guard(mutex)(&tgfx->sem);  in tgfx_close()
126 	if (!--tgfx->used) {  in tgfx_close()
127 		timer_delete_sync(&tgfx->timer);  in tgfx_close()
128 		parport_write_control(tgfx->pd->port, 0x00);  in tgfx_close()
129 		parport_release(tgfx->pd);  in tgfx_close()
141 	struct tgfx *tgfx;  in tgfx_attach()  local
173 	tgfx = kzalloc(sizeof(*tgfx), GFP_KERNEL);  in tgfx_attach()
174 	if (!tgfx) {  in tgfx_attach()
179 	mutex_init(&tgfx->sem);  in tgfx_attach()
180 	tgfx->pd = pd;  in tgfx_attach()
181 	tgfx->parportno = pp->number;  in tgfx_attach()
182 	timer_setup(&tgfx->timer, tgfx_timer, 0);  in tgfx_attach()
193 		tgfx->dev[i] = input_dev = input_allocate_device();  in tgfx_attach()
199 		tgfx->sticks |= (1 << i);  in tgfx_attach()
200 		snprintf(tgfx->name[i], sizeof(tgfx->name[i]),  in tgfx_attach()
202 		snprintf(tgfx->phys[i], sizeof(tgfx->phys[i]),  in tgfx_attach()
203 			 "%s/input%d", tgfx->pd->port->name, i);  in tgfx_attach()
205 		input_dev->name = tgfx->name[i];  in tgfx_attach()
206 		input_dev->phys = tgfx->phys[i];  in tgfx_attach()
212 		input_set_drvdata(input_dev, tgfx);  in tgfx_attach()
224 		if (input_register_device(tgfx->dev[i]))  in tgfx_attach()
228         if (!tgfx->sticks) {  in tgfx_attach()
233 	tgfx_base[port_idx] = tgfx;  in tgfx_attach()
237 	input_free_device(tgfx->dev[i]);  in tgfx_attach()
240 		if (tgfx->dev[i])  in tgfx_attach()
241 			input_unregister_device(tgfx->dev[i]);  in tgfx_attach()
243 	kfree(tgfx);  in tgfx_attach()
251 	struct tgfx *tgfx;  in tgfx_detach()  local
261 	tgfx = tgfx_base[i];  in tgfx_detach()
265 		if (tgfx->dev[i])  in tgfx_detach()
266 			input_unregister_device(tgfx->dev[i]);  in tgfx_detach()
267 	parport_unregister_device(tgfx->pd);  in tgfx_detach()
268 	kfree(tgfx);  in tgfx_detach()