svn commit: r344606 - head/sys/dev/flash

[Ian Lepore]

Author: ian
Date: Tue Feb 26 20:50:49 2019
New Revision: 344606
URL: https://svnweb.freebsd.org/changeset/base/344606

Log:
  Add support for geom_flashmap by providing a getattr() for "SPI:device".

Modified:
  head/sys/dev/flash/at45d.c

Modified: head/sys/dev/flash/at45d.c
==============================================================================
--- head/sys/dev/flash/at45d.c	Tue Feb 26 19:55:03 2019	(r344605)
+++ head/sys/dev/flash/at45d.c	Tue Feb 26 20:50:49 2019	(r344606)
@@ -119,6 +119,7 @@ static device_probe_t at45d_probe;
 /* disk routines */
 static int at45d_close(struct disk *dp);
 static int at45d_open(struct disk *dp);
+static int at45d_getattr(struct bio *bp);
 static void at45d_strategy(struct bio *bp);
 static void at45d_task(void *arg);
 
@@ -338,6 +339,7 @@ at45d_delayed_attach(void *xsc)
 	sc->disk->d_open = at45d_open;
 	sc->disk->d_close = at45d_close;
 	sc->disk->d_strategy = at45d_strategy;
+	sc->disk->d_getattr = at45d_getattr;
 	sc->disk->d_name = "flash/at45d";
 	sc->disk->d_drv1 = sc;
 	sc->disk->d_maxsize = DFLTPHYS;
@@ -365,6 +367,22 @@ static int
 at45d_close(struct disk *dp)
 {
 
+	return (0);
+}
+
+static int
+at45d_getattr(struct bio *bp)
+{
+	struct at45d_softc *sc;
+
+	if (bp->bio_disk == NULL || bp->bio_disk->d_drv1 == NULL)
+		return (ENXIO);
+	if (strcmp(bp->bio_attribute, "SPI::device") != 0)
+		return (-1);
+	sc = bp->bio_disk->d_drv1;
+	if (bp->bio_length != sizeof(sc->dev))
+		return (EFAULT);
+	bcopy(&sc->dev, bp->bio_data, sizeof(sc->dev));
 	return (0);
 }