3  * Raw serio device providing access to a raw byte stream from underlying
4  * serio port. Closely emulates behavior of pre-2.6 /dev/psaux device
14 #include <linux/serio.h>
21 #define DRIVER_DESC	"Raw serio driver"
34 	struct serio *serio;  member
96 		scoped_guard(serio_pause_rx, serio_raw->serio)  in serio_raw_open()
110 	put_device(&serio_raw->serio->dev);  in serio_raw_free()
119 	scoped_guard(serio_pause_rx, serio_raw->serio)  in serio_raw_release()
131 	guard(serio_pause_rx)(serio_raw->serio);  in serio_raw_fetch_byte()
202 			if (serio_write(serio_raw->serio, c)) {  in serio_raw_write()
244  *                   Interface with serio port                       *
247 static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,  in serio_raw_interrupt()  argument
250 	struct serio_raw *serio_raw = serio_get_drvdata(serio);  in serio_raw_interrupt()
254 	/* we are holding serio->lock here so we are protected */  in serio_raw_interrupt()
267 static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)  in serio_raw_connect()  argument
275 		dev_dbg(&serio->dev, "can't allocate memory for a device\n");  in serio_raw_connect()
285 	serio_raw->serio = serio;  in serio_raw_connect()
286 	get_device(&serio->dev);  in serio_raw_connect()
288 	serio_set_drvdata(serio, serio_raw);  in serio_raw_connect()
290 	err = serio_open(serio, drv);  in serio_raw_connect()
303 	serio_raw->dev.parent = &serio->dev;  in serio_raw_connect()
313 		dev_err(&serio->dev,  in serio_raw_connect()
315 			serio->phys);  in serio_raw_connect()
319 	dev_info(&serio->dev, "raw access enabled on %s (%s, minor %d)\n",  in serio_raw_connect()
320 		 serio->phys, serio_raw->name, serio_raw->dev.minor);  in serio_raw_connect()
326 	serio_close(serio);  in serio_raw_connect()
328 	serio_set_drvdata(serio, NULL);  in serio_raw_connect()
333 static int serio_raw_reconnect(struct serio *serio)  in serio_raw_reconnect()  argument
335 	struct serio_raw *serio_raw = serio_get_drvdata(serio);  in serio_raw_reconnect()
336 	struct serio_driver *drv = serio->drv;  in serio_raw_reconnect()
339 		dev_dbg(&serio->dev,  in serio_raw_reconnect()
340 			"reconnect request, but serio is disconnected, ignoring...\n");  in serio_raw_reconnect()
359 	scoped_guard(serio_pause_rx, serio_raw->serio) {  in serio_raw_hangup()
368 static void serio_raw_disconnect(struct serio *serio)  in serio_raw_disconnect()  argument
370 	struct serio_raw *serio_raw = serio_get_drvdata(serio);  in serio_raw_disconnect()
381 	serio_close(serio);  in serio_raw_disconnect()
384 	serio_set_drvdata(serio, NULL);  in serio_raw_disconnect()
403 MODULE_DEVICE_TABLE(serio, serio_raw_serio_ids);