40 #define reader_to_dev(x)	(&x->p_dev->dev)
109 	struct reader_dev *dev = (struct reader_dev *) dummy;  in cm4040_do_poll()  local
110 	unsigned int obs = xinb(dev->p_dev->resource[0]->start  in cm4040_do_poll()
114 		set_bit(BS_READABLE, &dev->buffer_status);  in cm4040_do_poll()
115 		DEBUGP(4, dev, "waking up read_wait\n");  in cm4040_do_poll()
116 		wake_up_interruptible(&dev->read_wait);  in cm4040_do_poll()
118 		clear_bit(BS_READABLE, &dev->buffer_status);  in cm4040_do_poll()
121 		set_bit(BS_WRITABLE, &dev->buffer_status);  in cm4040_do_poll()
122 		DEBUGP(4, dev, "waking up write_wait\n");  in cm4040_do_poll()
123 		wake_up_interruptible(&dev->write_wait);  in cm4040_do_poll()
125 		clear_bit(BS_WRITABLE, &dev->buffer_status);  in cm4040_do_poll()
127 	if (dev->buffer_status)  in cm4040_do_poll()
128 		wake_up_interruptible(&dev->poll_wait);  in cm4040_do_poll()
130 	mod_timer(&dev->poll_timer, jiffies + POLL_PERIOD);  in cm4040_do_poll()
133 static void cm4040_stop_poll(struct reader_dev *dev)  in cm4040_stop_poll()  argument
135 	del_timer_sync(&dev->poll_timer);  in cm4040_stop_poll()
138 static int wait_for_bulk_out_ready(struct reader_dev *dev)  in wait_for_bulk_out_ready()  argument
141 	int iobase = dev->p_dev->resource[0]->start;  in wait_for_bulk_out_ready()
146 			DEBUGP(4, dev, "BulkOut empty (i=%d)\n", i);  in wait_for_bulk_out_ready()
151 	DEBUGP(4, dev, "wait_event_interruptible_timeout(timeout=%ld\n",  in wait_for_bulk_out_ready()
152 		dev->timeout);  in wait_for_bulk_out_ready()
153 	rc = wait_event_interruptible_timeout(dev->write_wait,  in wait_for_bulk_out_ready()
155 						       &dev->buffer_status),  in wait_for_bulk_out_ready()
156 					      dev->timeout);  in wait_for_bulk_out_ready()
159 		DEBUGP(4, dev, "woke up: BulkOut empty\n");  in wait_for_bulk_out_ready()
161 		DEBUGP(4, dev, "woke up: BulkOut full, returning 0 :(\n");  in wait_for_bulk_out_ready()
163 		DEBUGP(4, dev, "woke up: signal arrived\n");  in wait_for_bulk_out_ready()
169 static int write_sync_reg(unsigned char val, struct reader_dev *dev)  in write_sync_reg()  argument
171 	int iobase = dev->p_dev->resource[0]->start;  in write_sync_reg()
174 	rc = wait_for_bulk_out_ready(dev);  in write_sync_reg()
179 	rc = wait_for_bulk_out_ready(dev);  in write_sync_reg()
186 static int wait_for_bulk_in_ready(struct reader_dev *dev)  in wait_for_bulk_in_ready()  argument
189 	int iobase = dev->p_dev->resource[0]->start;  in wait_for_bulk_in_ready()
194 			DEBUGP(3, dev, "BulkIn full (i=%d)\n", i);  in wait_for_bulk_in_ready()
199 	DEBUGP(4, dev, "wait_event_interruptible_timeout(timeout=%ld\n",  in wait_for_bulk_in_ready()
200 		dev->timeout);  in wait_for_bulk_in_ready()
201 	rc = wait_event_interruptible_timeout(dev->read_wait,  in wait_for_bulk_in_ready()
203 						 	&dev->buffer_status),  in wait_for_bulk_in_ready()
204 					      dev->timeout);  in wait_for_bulk_in_ready()
206 		DEBUGP(4, dev, "woke up: BulkIn full\n");  in wait_for_bulk_in_ready()
208 		DEBUGP(4, dev, "woke up: BulkIn not full, returning 0 :(\n");  in wait_for_bulk_in_ready()
210 		DEBUGP(4, dev, "woke up: signal arrived\n");  in wait_for_bulk_in_ready()
218 	struct reader_dev *dev = filp->private_data;  in cm4040_read()  local
219 	int iobase = dev->p_dev->resource[0]->start;  in cm4040_read()
226 	DEBUGP(2, dev, "-> cm4040_read(%s,%d)\n", current->comm, current->pid);  in cm4040_read()
235 		DEBUGP(4, dev, "filep->f_flags O_NONBLOCK set\n");  in cm4040_read()
236 		DEBUGP(2, dev, "<- cm4040_read (failure)\n");  in cm4040_read()
240 	if (!pcmcia_dev_present(dev->p_dev))  in cm4040_read()
244 		rc = wait_for_bulk_in_ready(dev);  in cm4040_read()
246 			DEBUGP(5, dev, "wait_for_bulk_in_ready rc=%.2x\n", rc);  in cm4040_read()
247 			DEBUGP(2, dev, "<- cm4040_read (failed)\n");  in cm4040_read()
252 	  	dev->r_buf[i] = xinb(iobase + REG_OFFSET_BULK_IN);  in cm4040_read()
254 		pr_debug("%lu:%2x ", i, dev->r_buf[i]);  in cm4040_read()
261 	bytes_to_read = 5 + le32_to_cpu(*(__le32 *)&dev->r_buf[1]);
263 	DEBUGP(6, dev, "BytesToRead=%zu\n", bytes_to_read);
268 	DEBUGP(6, dev, "Min=%zu\n", min_bytes_to_read);
271 		rc = wait_for_bulk_in_ready(dev);
273 			DEBUGP(5, dev, "wait_for_bulk_in_ready rc=%.2x\n", rc);
274 			DEBUGP(2, dev, "<- cm4040_read (failed)\n");
279 		dev->r_buf[i+5] = xinb(iobase + REG_OFFSET_BULK_IN);
281 		pr_debug("%lu:%2x ", i, dev->r_buf[i]);
289 	if (copy_to_user(buf, dev->r_buf, min_bytes_to_read))
292 	rc = wait_for_bulk_in_ready(dev);
294 		DEBUGP(5, dev, "wait_for_bulk_in_ready rc=%.2x\n", rc);
295 		DEBUGP(2, dev, "<- cm4040_read (failed)\n");
301 	rc = write_sync_reg(SCR_READER_TO_HOST_DONE, dev);
303 		DEBUGP(5, dev, "write_sync_reg c=%.2x\n", rc);
304 		DEBUGP(2, dev, "<- cm4040_read (failed)\n");
313 	DEBUGP(2, dev, "<- cm4040_read (successfully)\n");
320 	struct reader_dev *dev = filp->private_data;  in cm4040_write()  local
321 	int iobase = dev->p_dev->resource[0]->start;  in cm4040_write()
326 	DEBUGP(2, dev, "-> cm4040_write(%s,%d)\n", current->comm, current->pid);  in cm4040_write()
329 		DEBUGP(2, dev, "<- cm4040_write empty read (successfully)\n");  in cm4040_write()
334 		DEBUGP(2, dev, "<- cm4040_write buffersize=%Zd < 5\n", count);  in cm4040_write()
339 		DEBUGP(4, dev, "filep->f_flags O_NONBLOCK set\n");  in cm4040_write()
340 		DEBUGP(4, dev, "<- cm4040_write (failure)\n");  in cm4040_write()
344 	if (!pcmcia_dev_present(dev->p_dev))  in cm4040_write()
348 	if (copy_from_user(dev->s_buf, buf, bytes_to_write))  in cm4040_write()
351 	switch (dev->s_buf[0]) {  in cm4040_write()
356 			dev->timeout = CCID_DRIVER_BULK_DEFAULT_TIMEOUT;  in cm4040_write()
360 			dev->timeout = CCID_DRIVER_ASYNC_POWERUP_TIMEOUT;  in cm4040_write()
371 			dev->timeout = CCID_DRIVER_MINIMUM_TIMEOUT;  in cm4040_write()
375 	rc = write_sync_reg(SCR_HOST_TO_READER_START, dev);  in cm4040_write()
377 		DEBUGP(5, dev, "write_sync_reg c=%.2Zx\n", rc);  in cm4040_write()
378 		DEBUGP(2, dev, "<- cm4040_write (failed)\n");  in cm4040_write()
385 	DEBUGP(4, dev, "start \n");  in cm4040_write()
388 		rc = wait_for_bulk_out_ready(dev);  in cm4040_write()
390 			DEBUGP(5, dev, "wait_for_bulk_out_ready rc=%.2Zx\n",  in cm4040_write()
392 			DEBUGP(2, dev, "<- cm4040_write (failed)\n");  in cm4040_write()
399 		xoutb(dev->s_buf[i],iobase + REG_OFFSET_BULK_OUT);  in cm4040_write()
401 	DEBUGP(4, dev, "end\n");  in cm4040_write()
403 	rc = write_sync_reg(SCR_HOST_TO_READER_DONE, dev);  in cm4040_write()
406 		DEBUGP(5, dev, "write_sync_reg c=%.2Zx\n", rc);  in cm4040_write()
407 		DEBUGP(2, dev, "<- cm4040_write (failed)\n");  in cm4040_write()
414 	DEBUGP(2, dev, "<- cm4040_write (successfully)\n");  in cm4040_write()
420 	struct reader_dev *dev = filp->private_data;  in cm4040_poll()  local
423 	poll_wait(filp, &dev->poll_wait, wait);  in cm4040_poll()
425 	if (test_and_clear_bit(BS_READABLE, &dev->buffer_status))  in cm4040_poll()
427 	if (test_and_clear_bit(BS_WRITABLE, &dev->buffer_status))  in cm4040_poll()
430 	DEBUGP(2, dev, "<- cm4040_poll(%u)\n", mask);  in cm4040_poll()
437 	struct reader_dev *dev;  in cm4040_open()  local
457 	dev = link->priv;  in cm4040_open()
458 	filp->private_data = dev;  in cm4040_open()
461 		DEBUGP(4, dev, "filep->f_flags O_NONBLOCK set\n");  in cm4040_open()
468 	dev->poll_timer.data = (unsigned long) dev;  in cm4040_open()
469 	mod_timer(&dev->poll_timer, jiffies + POLL_PERIOD);  in cm4040_open()
471 	DEBUGP(2, dev, "<- cm4040_open (successfully)\n");  in cm4040_open()
480 	struct reader_dev *dev = filp->private_data;  in cm4040_close()  local
484 	DEBUGP(2, dev, "-> cm4040_close(maj/min=%d.%d)\n", imajor(inode),  in cm4040_close()
494 	cm4040_stop_poll(dev);  in cm4040_close()
497 	wake_up(&dev->devq);  in cm4040_close()
499 	DEBUGP(2, dev, "<- cm4040_close\n");  in cm4040_close()
505 	struct reader_dev *dev = link->priv;  in cm4040_reader_release()  local
507 	DEBUGP(3, dev, "-> cm4040_reader_release\n");  in cm4040_reader_release()
509 		DEBUGP(3, dev, KERN_INFO MODULE_NAME ": delaying release "  in cm4040_reader_release()
511  		wait_event(dev->devq, (link->open == 0));  in cm4040_reader_release()
513 	DEBUGP(3, dev, "<- cm4040_reader_release\n");  in cm4040_reader_release()
525 	struct reader_dev *dev;  in reader_config()  local
535 		dev_info(&link->dev, "pcmcia_enable_device failed 0x%x\n",  in reader_config()
540 	dev = link->priv;  in reader_config()
542 	DEBUGP(2, dev, "device " DEVICE_NAME "%d at %pR\n", devno,  in reader_config()
544 	DEBUGP(2, dev, "<- reader_config (succ)\n");  in reader_config()
561 	struct reader_dev *dev;  in reader_probe()  local
572 	dev = kzalloc(sizeof(struct reader_dev), GFP_KERNEL);  in reader_probe()
573 	if (dev == NULL)  in reader_probe()
576 	dev->timeout = CCID_DRIVER_MINIMUM_TIMEOUT;  in reader_probe()
577 	dev->buffer_status = 0;  in reader_probe()
579 	link->priv = dev;  in reader_probe()
580 	dev->p_dev = link;  in reader_probe()
584 	init_waitqueue_head(&dev->devq);  in reader_probe()
585 	init_waitqueue_head(&dev->poll_wait);  in reader_probe()
586 	init_waitqueue_head(&dev->read_wait);  in reader_probe()
587 	init_waitqueue_head(&dev->write_wait);  in reader_probe()
588 	setup_timer(&dev->poll_timer, cm4040_do_poll, 0);  in reader_probe()
593 		kfree(dev);  in reader_probe()
604 	struct reader_dev *dev = link->priv;  in reader_detach()  local
618 	kfree(dev);  in reader_detach()