[src/trunk]: src/sys/arch/amiga/dev Implement the WSDISPLAYIO_GET_FBINFO ioct...

[jandberg <jandberg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/340854959d8d
branches:  trunk
changeset: 979696:340854959d8d
user:      jandberg <jandberg%NetBSD.org@localhost>
date:      Wed Jan 06 13:00:51 2021 +0000

description:
Implement the WSDISPLAYIO_GET_FBINFO ioctl, needed by X wsfb driver.

diffstat:

 sys/arch/amiga/dev/amidisplaycc.c |  85 ++++++++++++++++++++++++++------------
 1 files changed, 58 insertions(+), 27 deletions(-)

diffs (151 lines):

diff -r 09ed6382b70b -r 340854959d8d sys/arch/amiga/dev/amidisplaycc.c
--- a/sys/arch/amiga/dev/amidisplaycc.c Wed Jan 06 10:19:27 2021 +0000
+++ b/sys/arch/amiga/dev/amidisplaycc.c Wed Jan 06 13:00:51 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: amidisplaycc.c,v 1.32 2018/09/03 16:29:22 riastradh Exp $ */
+/*     $NetBSD: amidisplaycc.c,v 1.33 2021/01/06 13:00:51 jandberg Exp $ */
 
 /*-
  * Copyright (c) 2000 Jukka Andberg.
@@ -28,7 +28,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: amidisplaycc.c,v 1.32 2018/09/03 16:29:22 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: amidisplaycc.c,v 1.33 2021/01/06 13:00:51 jandberg Exp $");
 
 /*
  * wscons interface to amiga custom chips. Contains the necessary functions
@@ -116,7 +116,9 @@
 static int amidisplaycc_cmapioctl(view_t *, u_long, struct wsdisplay_cmap *);
 static int amidisplaycc_setcmap(view_t *, struct wsdisplay_cmap *);
 static int amidisplaycc_getcmap(view_t *, struct wsdisplay_cmap *);
-static int amidisplaycc_gfxscreen(struct amidisplaycc_softc *, int);
+static int amidisplaycc_setgfxview(struct amidisplaycc_softc *, int);
+static void amidisplaycc_initgfxview(struct amidisplaycc_softc *);
+static int amidisplaycc_getfbinfo(struct amidisplaycc_softc *, struct wsdisplayio_fbinfo *);
 
 static int amidisplaycc_setfont(struct amidisplaycc_screen *, const char *);
 static const struct wsdisplay_font * amidisplaycc_getbuiltinfont(void);
@@ -365,8 +367,6 @@
        int     x;
        int     y;
 
-       /* Yeah, we got the console! */
-
        /*
         * This will do the basic stuff we also need.
         */
@@ -1042,9 +1042,9 @@
 
        case WSDISPLAYIO_SMODE:
                if (INTDATA == WSDISPLAYIO_MODE_EMUL)
-                       return amidisplaycc_gfxscreen(adp, 0);
+                       return amidisplaycc_setgfxview(adp, 0);
                if (INTDATA == WSDISPLAYIO_MODE_MAPPED)
-                       return amidisplaycc_gfxscreen(adp, 1);
+                       return amidisplaycc_setgfxview(adp, 1);
                return (EINVAL);
 
        case WSDISPLAYIO_GINFO:
@@ -1059,6 +1059,9 @@
                return (amidisplaycc_cmapioctl(adp->gfxview,
                                               cmd,
                                               (struct wsdisplay_cmap*)data));
+       case WSDISPLAYIO_GET_FBINFO:
+               amidisplaycc_initgfxview(adp);
+               return amidisplaycc_getfbinfo(adp, data);
        }
 
        return (EPASSTHROUGH);
@@ -1068,6 +1071,52 @@
 #undef FBINFO
 }
 
+static int
+amidisplaycc_getfbinfo(struct amidisplaycc_softc *adp, struct wsdisplayio_fbinfo *fbinfo)
+{
+       bmap_t *bm;
+
+       KASSERT(adp);
+
+       if (adp->gfxview == NULL) {
+               return ENOMEM;
+       }
+
+       bm = adp->gfxview->bitmap;
+       KASSERT(bm);
+
+       /* Depth 1 since current X wsfb driver doesn't support multiple bitplanes */
+       memset(fbinfo, 0, sizeof(*fbinfo));
+       fbinfo->fbi_fbsize = bm->bytes_per_row * bm->rows;
+       fbinfo->fbi_fboffset = 0;
+       fbinfo->fbi_width = bm->bytes_per_row * 8;
+       fbinfo->fbi_height = bm->rows;
+       fbinfo->fbi_stride = bm->bytes_per_row;
+       fbinfo->fbi_bitsperpixel = 1;
+       fbinfo->fbi_pixeltype = WSFB_CI;
+       fbinfo->fbi_flags = 0;
+       fbinfo->fbi_subtype.fbi_cmapinfo.cmap_entries = 1 << adp->gfxdepth;
+
+       return (0);
+}
+
+/*
+ * Initialize (but not display) the view used for graphics.
+ */
+static void
+amidisplaycc_initgfxview(struct amidisplaycc_softc *adp)
+{
+       dimen_t dimension;
+
+       if (adp->gfxview == NULL) {
+               /* First time here, create the screen */
+               dimension.width = adp->gfxwidth;
+               dimension.height = adp->gfxheight;
+               adp->gfxview = grf_alloc_view(NULL,
+                       &dimension,
+                       adp->gfxdepth);
+       }
+}
 
 /*
  * Switch to either emulation (text) or mapped (graphics) mode
@@ -1076,12 +1125,9 @@
  *
  * Once the extra screen is created, it never goes away.
  */
-
 static int
-amidisplaycc_gfxscreen(struct amidisplaycc_softc *adp, int on)
+amidisplaycc_setgfxview(struct amidisplaycc_softc *adp, int on)
 {
-       dimen_t  dimension;
-
        dprintf("amidisplaycc: switching to %s mode.\n",
                on ? "mapped" : "emul");
 
@@ -1105,22 +1151,7 @@
        }
 
        /* switch to mapped mode then */
-
-       if (adp->gfxview == NULL) {
-               /* First time here, create the screen */
-
-               dimension.width = adp->gfxwidth;
-               dimension.height = adp->gfxheight;
-
-               dprintf("amidisplaycc: preparing mapped screen %dx%dx%d\n",
-                       dimension.width,
-                       dimension.height,
-                       adp->gfxdepth);
-
-               adp->gfxview = grf_alloc_view(NULL,
-                                             &dimension,
-                                             adp->gfxdepth);
-       }
+       amidisplaycc_initgfxview(adp);
 
        if (adp->gfxview) {
                adp->gfxon = 1;