[src/trunk]: src/sys/dev/pci begin to address PR 49229:

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

details:   https://anonhg.NetBSD.org/src/rev/508669bed76c
branches:  trunk
changeset: 804974:508669bed76c
user:      macallan <macallan%NetBSD.org@localhost>
date:      Tue Dec 09 07:42:50 2014 +0000

description:
begin to address PR 49229:
- program aperture endianness to match host, now xf86-video-wsfb works as
  expected
- properly restore the colour map when er-entering terminal emulation

diffstat:

 sys/dev/pci/pm2fb.c |  49 ++++++++++++++++++++++++++-----------------------
 1 files changed, 26 insertions(+), 23 deletions(-)

diffs (116 lines):

diff -r 8c9a959b09cf -r 508669bed76c sys/dev/pci/pm2fb.c
--- a/sys/dev/pci/pm2fb.c       Tue Dec 09 02:30:09 2014 +0000
+++ b/sys/dev/pci/pm2fb.c       Tue Dec 09 07:42:50 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pm2fb.c,v 1.25 2013/10/09 17:18:23 macallan Exp $      */
+/*     $NetBSD: pm2fb.c,v 1.26 2014/12/09 07:42:50 macallan Exp $      */
 
 /*
  * Copyright (c) 2009, 2012 Michael Lorenz
@@ -31,7 +31,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pm2fb.c,v 1.25 2013/10/09 17:18:23 macallan Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pm2fb.c,v 1.26 2014/12/09 07:42:50 macallan Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -123,7 +123,7 @@
 
 static int     pm2fb_putcmap(struct pm2fb_softc *, struct wsdisplay_cmap *);
 static int     pm2fb_getcmap(struct pm2fb_softc *, struct wsdisplay_cmap *);
-static void    pm2fb_restore_palette(struct pm2fb_softc *);
+static void    pm2fb_init_palette(struct pm2fb_softc *);
 static int     pm2fb_putpalreg(struct pm2fb_softc *, uint8_t, uint8_t,
                            uint8_t, uint8_t);
 
@@ -283,9 +283,7 @@
        prop_dictionary_t       dict;
        unsigned long           defattr;
        bool                    is_console;
-       int                     i, j;
        uint32_t                flags;
-       uint8_t                 cmap[768];
 
        sc->sc_pc = pa->pa_pc;
        sc->sc_pcitag = pa->pa_tag;
@@ -359,7 +357,7 @@
        vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr,
            &pm2fb_accessops);
        sc->vd.init_screen = pm2fb_init_screen;
-       
+
        /* init engine here */
        pm2fb_init(sc);
 
@@ -416,16 +414,8 @@
                           defattr);
        }
 
-       j = 0;
-       rasops_get_cmap(ri, cmap, sizeof(cmap));
-       for (i = 0; i < 256; i++) {
-               sc->sc_cmap_red[i] = cmap[j];
-               sc->sc_cmap_green[i] = cmap[j + 1];
-               sc->sc_cmap_blue[i] = cmap[j + 2];
-               pm2fb_putpalreg(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]);
-               j += 3;
-       }
-
+       pm2fb_init_palette(sc);
+       
        aa.console = is_console;
        aa.scrdata = &sc->sc_screenlist;
        aa.accessops = &pm2fb_accessops;
@@ -509,7 +499,7 @@
                                }
                                /* then initialize the drawing engine */
                                pm2fb_init(sc);
-                               pm2fb_restore_palette(sc);
+                               pm2fb_init_palette(sc);
                                /* clean out the glyph cache */
                                glyphcache_wipe(&sc->sc_gc);
                                /* and redraw everything */
@@ -685,13 +675,19 @@
 }
 
 static void
-pm2fb_restore_palette(struct pm2fb_softc *sc)
+pm2fb_init_palette(struct pm2fb_softc *sc)
 {
-       int i;
+       struct rasops_info *ri = &sc->sc_console_screen.scr_ri;
+       int i, j = 0;
+       uint8_t cmap[768];
 
-       for (i = 0; i < (1 << sc->sc_depth); i++) {
-               pm2fb_putpalreg(sc, i, sc->sc_cmap_red[i],
-                   sc->sc_cmap_green[i], sc->sc_cmap_blue[i]);
+       rasops_get_cmap(ri, cmap, sizeof(cmap));
+       for (i = 0; i < 256; i++) {
+               sc->sc_cmap_red[i] = cmap[j];
+               sc->sc_cmap_green[i] = cmap[j + 1];
+               sc->sc_cmap_blue[i] = cmap[j + 2];
+               pm2fb_putpalreg(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]);
+               j += 3;
        }
 }
 
@@ -748,8 +744,15 @@
 {
        pm2fb_flush_engine(sc);
 
-       pm2fb_wait(sc, 8);
+       pm2fb_wait(sc, 9);
        bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_SCREEN_BASE, 0);
+       /* set aperture endianness */
+#if BYTE_ORDER == BIG_ENDIAN
+       bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_APERTURE1_CONTROL,
+               PM2_AP_BYTESWAP | PM2_AP_HALFWORDSWAP); 
+#else
+       bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_APERTURE1_CONTROL, 0);
+#endif 
 #if 0
        bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_BYPASS_MASK, 
                0xffffffff);