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radeonfb.c revision 1.58
      1 /*	$NetBSD: radeonfb.c,v 1.58 2012/03/13 18:40:33 elad Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2006 Itronix Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Garrett D'Amore for Itronix Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. The name of Itronix Inc. may not be used to endorse
     18  *    or promote products derived from this software without specific
     19  *    prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND ANY EXPRESS
     22  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     23  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
     25  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
     27  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     30  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     31  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 /*
     35  * ATI Technologies Inc. ("ATI") has not assisted in the creation of, and
     36  * does not endorse, this software.  ATI will not be responsible or liable
     37  * for any actual or alleged damage or loss caused by or in connection with
     38  * the use of or reliance on this software.
     39  */
     40 
     41 /*
     42  * Portions of this code were taken from XFree86's Radeon driver, which bears
     43  * this notice:
     44  *
     45  * Copyright 2000 ATI Technologies Inc., Markham, Ontario, and
     46  *                VA Linux Systems Inc., Fremont, California.
     47  *
     48  * All Rights Reserved.
     49  *
     50  * Permission is hereby granted, free of charge, to any person obtaining
     51  * a copy of this software and associated documentation files (the
     52  * "Software"), to deal in the Software without restriction, including
     53  * without limitation on the rights to use, copy, modify, merge,
     54  * publish, distribute, sublicense, and/or sell copies of the Software,
     55  * and to permit persons to whom the Software is furnished to do so,
     56  * subject to the following conditions:
     57  *
     58  * The above copyright notice and this permission notice (including the
     59  * next paragraph) shall be included in all copies or substantial
     60  * portions of the Software.
     61  *
     62  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     63  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     64  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     65  * NON-INFRINGEMENT.  IN NO EVENT SHALL ATI, VA LINUX SYSTEMS AND/OR
     66  * THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
     67  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     68  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     69  * DEALINGS IN THE SOFTWARE.
     70  */
     71 
     72 #include <sys/cdefs.h>
     73 __KERNEL_RCSID(0, "$NetBSD: radeonfb.c,v 1.58 2012/03/13 18:40:33 elad Exp $");
     74 
     75 #include <sys/param.h>
     76 #include <sys/systm.h>
     77 #include <sys/device.h>
     78 #include <sys/malloc.h>
     79 #include <sys/bus.h>
     80 #include <sys/kernel.h>
     81 #include <sys/lwp.h>
     82 #include <sys/kauth.h>
     83 
     84 #include <dev/wscons/wsdisplayvar.h>
     85 #include <dev/wscons/wsconsio.h>
     86 #include <dev/wsfont/wsfont.h>
     87 #include <dev/rasops/rasops.h>
     88 #include <dev/videomode/videomode.h>
     89 #include <dev/videomode/edidvar.h>
     90 #include <dev/wscons/wsdisplay_vconsvar.h>
     91 #include <dev/pci/wsdisplay_pci.h>
     92 #include <dev/wscons/wsdisplay_glyphcachevar.h>
     93 
     94 #include <dev/pci/pcidevs.h>
     95 #include <dev/pci/pcireg.h>
     96 #include <dev/pci/pcivar.h>
     97 #include <dev/pci/pciio.h>
     98 #include <dev/pci/radeonfbreg.h>
     99 #include <dev/pci/radeonfbvar.h>
    100 #include "opt_radeonfb.h"
    101 #include "opt_vcons.h"
    102 
    103 #ifdef RADEONFB_DEPTH_32
    104 #define RADEONFB_DEFAULT_DEPTH 32
    105 #else
    106 #define RADEONFB_DEFAULT_DEPTH 8
    107 #endif
    108 
    109 static int radeonfb_match(device_t, cfdata_t, void *);
    110 static void radeonfb_attach(device_t, device_t, void *);
    111 static int radeonfb_ioctl(void *, void *, unsigned long, void *, int,
    112     struct lwp *);
    113 static paddr_t radeonfb_mmap(void *, void *, off_t, int);
    114 static int radeonfb_scratch_test(struct radeonfb_softc *, int, uint32_t);
    115 static void radeonfb_loadbios(struct radeonfb_softc *,
    116     const struct pci_attach_args *);
    117 
    118 static uintmax_t radeonfb_getprop_num(struct radeonfb_softc *, const char *,
    119     uintmax_t);
    120 static int radeonfb_getclocks(struct radeonfb_softc *);
    121 static int radeonfb_gettmds(struct radeonfb_softc *);
    122 static int radeonfb_calc_dividers(struct radeonfb_softc *, uint32_t,
    123     uint32_t *, uint32_t *);
    124 static int radeonfb_getconnectors(struct radeonfb_softc *);
    125 static const struct videomode *radeonfb_modelookup(const char *);
    126 static void radeonfb_init_screen(void *, struct vcons_screen *, int, long *);
    127 static void radeonfb_pllwriteupdate(struct radeonfb_softc *, int);
    128 static void radeonfb_pllwaitatomicread(struct radeonfb_softc *, int);
    129 static void radeonfb_program_vclk(struct radeonfb_softc *, int, int);
    130 static void radeonfb_modeswitch(struct radeonfb_display *);
    131 static void radeonfb_setcrtc(struct radeonfb_display *, int);
    132 static void radeonfb_init_misc(struct radeonfb_softc *);
    133 static void radeonfb_set_fbloc(struct radeonfb_softc *);
    134 static void radeonfb_init_palette(struct radeonfb_softc *, int);
    135 static void radeonfb_r300cg_workaround(struct radeonfb_softc *);
    136 
    137 static int radeonfb_isblank(struct radeonfb_display *);
    138 static void radeonfb_blank(struct radeonfb_display *, int);
    139 static int radeonfb_set_cursor(struct radeonfb_display *,
    140     struct wsdisplay_cursor *);
    141 static int radeonfb_set_curpos(struct radeonfb_display *,
    142     struct wsdisplay_curpos *);
    143 
    144 /* acceleration support */
    145 static void  radeonfb_rectfill(struct radeonfb_display *, int dstx, int dsty,
    146     int width, int height, uint32_t color);
    147 static void radeonfb_bitblt(void *, int srcx, int srcy,
    148     int dstx, int dsty, int width, int height, int rop);
    149 
    150 /* hw cursor support */
    151 static void radeonfb_cursor_cmap(struct radeonfb_display *);
    152 static void radeonfb_cursor_shape(struct radeonfb_display *);
    153 static void radeonfb_cursor_position(struct radeonfb_display *);
    154 static void radeonfb_cursor_visible(struct radeonfb_display *);
    155 static void radeonfb_cursor_update(struct radeonfb_display *, unsigned);
    156 
    157 static void radeonfb_wait_fifo(struct radeonfb_softc *, int);
    158 static void radeonfb_engine_idle(struct radeonfb_softc *);
    159 static void radeonfb_engine_flush(struct radeonfb_softc *);
    160 static void radeonfb_engine_reset(struct radeonfb_softc *);
    161 static void radeonfb_engine_init(struct radeonfb_display *);
    162 static inline void radeonfb_unclip(struct radeonfb_softc *);
    163 
    164 static void radeonfb_eraserows(void *, int, int, long);
    165 static void radeonfb_erasecols(void *, int, int, int, long);
    166 static void radeonfb_copyrows(void *, int, int, int);
    167 static void radeonfb_copycols(void *, int, int, int, int);
    168 static void radeonfb_cursor(void *, int, int, int);
    169 static void radeonfb_putchar(void *, int, int, unsigned, long);
    170 static void radeonfb_putchar_aa32(void *, int, int, unsigned, long);
    171 static void radeonfb_putchar_aa8(void *, int, int, unsigned, long);
    172 static void radeonfb_putchar_wrapper(void *, int, int, unsigned, long);
    173 
    174 static int radeonfb_get_backlight(struct radeonfb_display *);
    175 static int radeonfb_set_backlight(struct radeonfb_display *, int);
    176 static void radeonfb_lvds_callout(void *);
    177 
    178 static void radeonfb_brightness_up(device_t);
    179 static void radeonfb_brightness_down(device_t);
    180 
    181 static struct videomode *radeonfb_best_refresh(struct videomode *,
    182     struct videomode *);
    183 static void radeonfb_pickres(struct radeonfb_display *, uint16_t *,
    184     uint16_t *, int);
    185 static const struct videomode *radeonfb_port_mode(struct radeonfb_softc *,
    186     struct radeonfb_port *, int, int);
    187 
    188 static int radeonfb_drm_print(void *, const char *);
    189 
    190 #ifdef	RADEONFB_DEBUG
    191 int	radeon_debug = 1;
    192 #define	DPRINTF(x)	\
    193 	if (radeon_debug) printf x
    194 #define	PRINTREG(r)	DPRINTF((#r " = %08x\n", GET32(sc, r)))
    195 #define	PRINTPLL(r)	DPRINTF((#r " = %08x\n", GETPLL(sc, r)))
    196 #else
    197 #define	DPRINTF(x)
    198 #define	PRINTREG(r)
    199 #define	PRINTPLL(r)
    200 #endif
    201 
    202 #define	ROUNDUP(x,y)	(((x) + ((y) - 1)) & ~((y) - 1))
    203 
    204 #ifndef	RADEON_DEFAULT_MODE
    205 /* any reasonably modern display should handle this */
    206 #define	RADEON_DEFAULT_MODE	"1024x768x60"
    207 #endif
    208 
    209 extern const u_char rasops_cmap[768];
    210 
    211 const char	*radeonfb_default_mode = RADEON_DEFAULT_MODE;
    212 
    213 static struct {
    214 	int		size;		/* minimum memory size (MB) */
    215 	int		maxx;		/* maximum x dimension */
    216 	int		maxy;		/* maximum y dimension */
    217 	int		maxbpp;		/* maximum bpp */
    218 	int		maxdisp;	/* maximum logical display count */
    219 } radeonfb_limits[] = {
    220 	{ 32,	2048, 1536, 32, 2 },
    221 	{ 16,	1600, 1200, 32, 2 },
    222 	{ 8,	1600, 1200, 32, 1 },
    223 	{ 0,	0, 0, 0, 0 },
    224 };
    225 
    226 static struct wsscreen_descr radeonfb_stdscreen = {
    227 	"fb",		/* name */
    228 	0, 0,		/* ncols, nrows */
    229 	NULL,		/* textops */
    230 	8, 16,		/* fontwidth, fontheight */
    231 	WSSCREEN_WSCOLORS, /* capabilities */
    232 	0,		/* modecookie */
    233 };
    234 
    235 struct wsdisplay_accessops radeonfb_accessops = {
    236 	radeonfb_ioctl,
    237 	radeonfb_mmap,
    238 	NULL,		/* vcons_alloc_screen */
    239 	NULL,		/* vcons_free_screen */
    240 	NULL,		/* vcons_show_screen */
    241 	NULL,		/* load_font */
    242 	NULL,		/* pollc */
    243 	NULL,		/* scroll */
    244 };
    245 
    246 static struct {
    247 	uint16_t	devid;
    248 	uint16_t	family;
    249 	uint16_t	flags;
    250 } radeonfb_devices[] =
    251 {
    252 	/* R100 family */
    253 	{ PCI_PRODUCT_ATI_RADEON_R100_QD,	RADEON_R100, 0 },
    254 	{ PCI_PRODUCT_ATI_RADEON_R100_QE,	RADEON_R100, 0 },
    255 	{ PCI_PRODUCT_ATI_RADEON_R100_QF,	RADEON_R100, 0 },
    256 	{ PCI_PRODUCT_ATI_RADEON_R100_QG,	RADEON_R100, 0 },
    257 
    258 	/* RV100 family */
    259 	{ PCI_PRODUCT_ATI_RADEON_RV100_LY,	RADEON_RV100, RFB_MOB },
    260 	{ PCI_PRODUCT_ATI_RADEON_RV100_LZ,	RADEON_RV100, RFB_MOB },
    261 	{ PCI_PRODUCT_ATI_RADEON_RV100_QY,	RADEON_RV100, 0 },
    262 	{ PCI_PRODUCT_ATI_RADEON_RV100_QZ,	RADEON_RV100, 0 },
    263 
    264 	/* RS100 family */
    265 	{ PCI_PRODUCT_ATI_RADEON_RS100_4136,	RADEON_RS100, 0 },
    266 	{ PCI_PRODUCT_ATI_RADEON_RS100_4336,	RADEON_RS100, RFB_MOB },
    267 
    268 	/* RS200/RS250 family */
    269 	{ PCI_PRODUCT_ATI_RADEON_RS200_4337,	RADEON_RS200, RFB_MOB },
    270 	{ PCI_PRODUCT_ATI_RADEON_RS200_A7,	RADEON_RS200, 0 },
    271 	{ PCI_PRODUCT_ATI_RADEON_RS250_B7,	RADEON_RS200, RFB_MOB },
    272 	{ PCI_PRODUCT_ATI_RADEON_RS250_D7,	RADEON_RS200, 0 },
    273 
    274 	/* R200 family */
    275 	/* add more R200 products? , 5148 */
    276 	{ PCI_PRODUCT_ATI_RADEON_R200_BB,	RADEON_R200, 0 },
    277 	{ PCI_PRODUCT_ATI_RADEON_R200_BC,	RADEON_R200, 0 },
    278 	{ PCI_PRODUCT_ATI_RADEON_R200_QH,	RADEON_R200, 0 },
    279 	{ PCI_PRODUCT_ATI_RADEON_R200_QL,	RADEON_R200, 0 },
    280 	{ PCI_PRODUCT_ATI_RADEON_R200_QM,	RADEON_R200, 0 },
    281 
    282 	/* RV200 family */
    283 	{ PCI_PRODUCT_ATI_RADEON_RV200_LW,	RADEON_RV200, RFB_MOB },
    284 	{ PCI_PRODUCT_ATI_RADEON_RV200_LX,	RADEON_RV200, RFB_MOB },
    285 	{ PCI_PRODUCT_ATI_RADEON_RV200_QW,	RADEON_RV200, 0 },
    286 	{ PCI_PRODUCT_ATI_RADEON_RV200_QX,	RADEON_RV200, 0 },
    287 
    288 	/* RV250 family */
    289 	{ PCI_PRODUCT_ATI_RADEON_RV250_4966,	RADEON_RV250, 0 },
    290 	{ PCI_PRODUCT_ATI_RADEON_RV250_4967,	RADEON_RV250, 0 },
    291 	{ PCI_PRODUCT_ATI_RADEON_RV250_4C64,	RADEON_RV250, RFB_MOB },
    292 	{ PCI_PRODUCT_ATI_RADEON_RV250_4C66,	RADEON_RV250, RFB_MOB },
    293 	{ PCI_PRODUCT_ATI_RADEON_RV250_4C67,	RADEON_RV250, RFB_MOB },
    294 
    295 	/* RS300 family */
    296 	{ PCI_PRODUCT_ATI_RADEON_RS300_X5,	RADEON_RS300, 0 },
    297 	{ PCI_PRODUCT_ATI_RADEON_RS300_X4,	RADEON_RS300, 0 },
    298 	{ PCI_PRODUCT_ATI_RADEON_RS300_7834,	RADEON_RS300, 0 },
    299 	{ PCI_PRODUCT_ATI_RADEON_RS300_7835,	RADEON_RS300, RFB_MOB },
    300 
    301 	/* RV280 family */
    302 	{ PCI_PRODUCT_ATI_RADEON_RV280_5960,	RADEON_RV280, 0 },
    303 	{ PCI_PRODUCT_ATI_RADEON_RV280_5961,	RADEON_RV280, 0 },
    304 	{ PCI_PRODUCT_ATI_RADEON_RV280_5962,	RADEON_RV280, 0 },
    305 	{ PCI_PRODUCT_ATI_RADEON_RV280_5963,	RADEON_RV280, 0 },
    306 	{ PCI_PRODUCT_ATI_RADEON_RV280_5964,	RADEON_RV280, 0 },
    307 	{ PCI_PRODUCT_ATI_RADEON_RV280_5C61,	RADEON_RV280, RFB_MOB },
    308 	{ PCI_PRODUCT_ATI_RADEON_RV280_5C63,	RADEON_RV280, RFB_MOB },
    309 
    310 	/* R300 family */
    311 	{ PCI_PRODUCT_ATI_RADEON_R300_AD,	RADEON_R300, 0 },
    312 	{ PCI_PRODUCT_ATI_RADEON_R300_AE,	RADEON_R300, 0 },
    313 	{ PCI_PRODUCT_ATI_RADEON_R300_AF,	RADEON_R300, 0 },
    314 	{ PCI_PRODUCT_ATI_RADEON_R300_AG,	RADEON_R300, 0 },
    315 	{ PCI_PRODUCT_ATI_RADEON_R300_ND,	RADEON_R300, 0 },
    316 	{ PCI_PRODUCT_ATI_RADEON_R300_NE,	RADEON_R300, 0 },
    317 	{ PCI_PRODUCT_ATI_RADEON_R300_NF,	RADEON_R300, 0 },
    318 	{ PCI_PRODUCT_ATI_RADEON_R300_NG,	RADEON_R300, 0 },
    319 
    320 	/* RV350/RV360 family */
    321 	{ PCI_PRODUCT_ATI_RADEON_RV350_AP,	RADEON_RV350, 0 },
    322 	{ PCI_PRODUCT_ATI_RADEON_RV350_AQ,	RADEON_RV350, 0 },
    323 	{ PCI_PRODUCT_ATI_RADEON_RV360_AR,	RADEON_RV350, 0 },
    324 	{ PCI_PRODUCT_ATI_RADEON_RV350_AS,	RADEON_RV350, 0 },
    325 	{ PCI_PRODUCT_ATI_RADEON_RV350_AT,	RADEON_RV350, 0 },
    326 	{ PCI_PRODUCT_ATI_RADEON_RV350_AV,	RADEON_RV350, 0 },
    327 	{ PCI_PRODUCT_ATI_RADEON_RV350_NP,	RADEON_RV350, RFB_MOB },
    328 	{ PCI_PRODUCT_ATI_RADEON_RV350_NQ,	RADEON_RV350, RFB_MOB },
    329 	{ PCI_PRODUCT_ATI_RADEON_RV350_NR,	RADEON_RV350, RFB_MOB },
    330 	{ PCI_PRODUCT_ATI_RADEON_RV350_NS,	RADEON_RV350, RFB_MOB },
    331 	{ PCI_PRODUCT_ATI_RADEON_RV350_NT,	RADEON_RV350, RFB_MOB },
    332 	{ PCI_PRODUCT_ATI_RADEON_RV350_NV,	RADEON_RV350, RFB_MOB },
    333 
    334 	/* R350/R360 family */
    335 	{ PCI_PRODUCT_ATI_RADEON_R350_AH,	RADEON_R350, 0 },
    336 	{ PCI_PRODUCT_ATI_RADEON_R350_AI,	RADEON_R350, 0 },
    337 	{ PCI_PRODUCT_ATI_RADEON_R350_AJ,	RADEON_R350, 0 },
    338 	{ PCI_PRODUCT_ATI_RADEON_R350_AK,	RADEON_R350, 0 },
    339 	{ PCI_PRODUCT_ATI_RADEON_R350_NH,	RADEON_R350, 0 },
    340 	{ PCI_PRODUCT_ATI_RADEON_R350_NI,	RADEON_R350, 0 },
    341 	{ PCI_PRODUCT_ATI_RADEON_R350_NK,	RADEON_R350, 0 },
    342 	{ PCI_PRODUCT_ATI_RADEON_R360_NJ,	RADEON_R350, 0 },
    343 
    344 	/* RV380/RV370 family */
    345 	{ PCI_PRODUCT_ATI_RADEON_RV380_3150,	RADEON_RV380, RFB_MOB },
    346 	{ PCI_PRODUCT_ATI_RADEON_RV380_3154,	RADEON_RV380, RFB_MOB },
    347 	{ PCI_PRODUCT_ATI_RADEON_RV380_3E50,	RADEON_RV380, 0 },
    348 	{ PCI_PRODUCT_ATI_RADEON_RV380_3E54,	RADEON_RV380, 0 },
    349 	{ PCI_PRODUCT_ATI_RADEON_RV370_5460,	RADEON_RV380, RFB_MOB },
    350 	{ PCI_PRODUCT_ATI_RADEON_RV370_5464,	RADEON_RV380, RFB_MOB },
    351 	{ PCI_PRODUCT_ATI_RADEON_RV370_5B60,	RADEON_RV380, 0 },
    352 	{ PCI_PRODUCT_ATI_RADEON_RV370_5B64,	RADEON_RV380, 0 },
    353 	{ PCI_PRODUCT_ATI_RADEON_RV370_5B65,	RADEON_RV380, 0 },
    354 
    355 	/* R420/R423 family */
    356 	{ PCI_PRODUCT_ATI_RADEON_R420_JH,	RADEON_R420, 0 },
    357 	{ PCI_PRODUCT_ATI_RADEON_R420_JI,	RADEON_R420, 0 },
    358 	{ PCI_PRODUCT_ATI_RADEON_R420_JJ,	RADEON_R420, 0 },
    359 	{ PCI_PRODUCT_ATI_RADEON_R420_JK,	RADEON_R420, 0 },
    360 	{ PCI_PRODUCT_ATI_RADEON_R420_JL,	RADEON_R420, 0 },
    361 	{ PCI_PRODUCT_ATI_RADEON_R420_JM,	RADEON_R420, 0 },
    362 	{ PCI_PRODUCT_ATI_RADEON_R420_JN,	RADEON_R420, RFB_MOB },
    363 	{ PCI_PRODUCT_ATI_RADEON_R420_JP,	RADEON_R420, 0 },
    364 	{ PCI_PRODUCT_ATI_RADEON_R423_UH,	RADEON_R420, 0 },
    365 	{ PCI_PRODUCT_ATI_RADEON_R423_UI,	RADEON_R420, 0 },
    366 	{ PCI_PRODUCT_ATI_RADEON_R423_UJ,	RADEON_R420, 0 },
    367 	{ PCI_PRODUCT_ATI_RADEON_R423_UK,	RADEON_R420, 0 },
    368 	{ PCI_PRODUCT_ATI_RADEON_R423_UQ,	RADEON_R420, 0 },
    369 	{ PCI_PRODUCT_ATI_RADEON_R423_UR,	RADEON_R420, 0 },
    370 	{ PCI_PRODUCT_ATI_RADEON_R423_UT,	RADEON_R420, 0 },
    371 	{ PCI_PRODUCT_ATI_RADEON_R423_5D57,	RADEON_R420, 0 },
    372 	{ PCI_PRODUCT_ATI_RADEON_R430_554F,	RADEON_R420, 0 },
    373 
    374 	{ 0, 0, 0 }
    375 };
    376 
    377 static struct {
    378 	int divider;
    379 	int mask;
    380 } radeonfb_dividers[] = {
    381 	{  1, 0 },
    382 	{  2, 1 },
    383 	{  3, 4 },
    384 	{  4, 2 },
    385 	{  6, 6 },
    386 	{  8, 3 },
    387 	{ 12, 7 },
    388 	{  0, 0 }
    389 };
    390 
    391 /*
    392  * This table taken from X11.
    393  */
    394 static const struct {
    395 	int			family;
    396 	struct radeon_tmds_pll	plls[4];
    397 } radeonfb_tmds_pll[] = {
    398 	{ RADEON_R100,	{{12000, 0xa1b}, {-1, 0xa3f}}},
    399 	{ RADEON_RV100,	{{12000, 0xa1b}, {-1, 0xa3f}}},
    400 	{ RADEON_RS100, {{0, 0}}},
    401 	{ RADEON_RV200,	{{15000, 0xa1b}, {-1, 0xa3f}}},
    402 	{ RADEON_RS200,	{{15000, 0xa1b}, {-1, 0xa3f}}},
    403 	{ RADEON_R200,	{{15000, 0xa1b}, {-1, 0xa3f}}},
    404 	{ RADEON_RV250,	{{15500, 0x81b}, {-1, 0x83f}}},
    405 	{ RADEON_RS300, {{0, 0}}},
    406 	{ RADEON_RV280,	{{13000, 0x400f4}, {15000, 0x400f7}}},
    407 	{ RADEON_R300,	{{-1, 0xb01cb}}},
    408 	{ RADEON_R350,	{{-1, 0xb01cb}}},
    409 	{ RADEON_RV350,	{{15000, 0xb0155}, {-1, 0xb01cb}}},
    410 	{ RADEON_RV380,	{{15000, 0xb0155}, {-1, 0xb01cb}}},
    411 	{ RADEON_R420,	{{-1, 0xb01cb}}},
    412 };
    413 
    414 #define RADEONFB_BACKLIGHT_MAX    255  /* Maximum backlight level. */
    415 
    416 
    417 CFATTACH_DECL_NEW(radeonfb, sizeof (struct radeonfb_softc),
    418     radeonfb_match, radeonfb_attach, NULL, NULL);
    419 
    420 static int
    421 radeonfb_match(device_t parent, cfdata_t match, void *aux)
    422 {
    423 	const struct pci_attach_args	*pa = aux;
    424 	int			i;
    425 
    426 	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_ATI)
    427 		return 0;
    428 
    429 	for (i = 0; radeonfb_devices[i].devid; i++) {
    430 		if (PCI_PRODUCT(pa->pa_id) == radeonfb_devices[i].devid)
    431 			return 100;	/* high to defeat VGA/VESA */
    432 	}
    433 
    434 	return 0;
    435 }
    436 
    437 static void
    438 radeonfb_attach(device_t parent, device_t dev, void *aux)
    439 {
    440 	struct radeonfb_softc	*sc = device_private(dev);
    441 	const struct pci_attach_args	*pa = aux;
    442 	const char		*mptr;
    443 	bus_size_t		bsz;
    444 	pcireg_t		screg;
    445 	int			i, j, fg, bg, ul, flags;
    446 	uint32_t		v;
    447 
    448 	sc->sc_dev = dev;
    449 	sc->sc_id = pa->pa_id;
    450 	for (i = 0; radeonfb_devices[i].devid; i++) {
    451 		if (PCI_PRODUCT(sc->sc_id) == radeonfb_devices[i].devid)
    452 			break;
    453 	}
    454 
    455 	pci_aprint_devinfo(pa, NULL);
    456 
    457 	DPRINTF((prop_dictionary_externalize(device_properties(dev))));
    458 
    459 	KASSERT(radeonfb_devices[i].devid != 0);
    460 	sc->sc_pt = pa->pa_tag;
    461 	sc->sc_iot = pa->pa_iot;
    462 	sc->sc_pc = pa->pa_pc;
    463 	sc->sc_family = radeonfb_devices[i].family;
    464 	sc->sc_flags = radeonfb_devices[i].flags;
    465 
    466 	/* enable memory and IO access */
    467 	screg = pci_conf_read(sc->sc_pc, sc->sc_pt, PCI_COMMAND_STATUS_REG);
    468 	screg |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE;
    469 	pci_conf_write(sc->sc_pc, sc->sc_pt, PCI_COMMAND_STATUS_REG, screg);
    470 
    471 	/*
    472 	 * Some flags are general to entire chip families, and rather
    473 	 * than clutter up the table with them, we go ahead and set
    474 	 * them here.
    475 	 */
    476 	switch (sc->sc_family) {
    477 	case RADEON_RS100:
    478 	case RADEON_RS200:
    479 		sc->sc_flags |= RFB_IGP | RFB_RV100;
    480 		break;
    481 
    482 	case RADEON_RV100:
    483 	case RADEON_RV200:
    484 	case RADEON_RV250:
    485 	case RADEON_RV280:
    486 		sc->sc_flags |= RFB_RV100;
    487 		break;
    488 
    489 	case RADEON_RS300:
    490 		sc->sc_flags |= RFB_SDAC | RFB_IGP | RFB_RV100;
    491 		break;
    492 
    493 	case RADEON_R300:
    494 	case RADEON_RV350:
    495 	case RADEON_R350:
    496 	case RADEON_RV380:
    497 	case RADEON_R420:
    498 		/* newer chips */
    499 		sc->sc_flags |= RFB_R300;
    500 		break;
    501 
    502 	case RADEON_R100:
    503 		sc->sc_flags |= RFB_NCRTC2;
    504 		break;
    505 	}
    506 
    507 	if ((sc->sc_family == RADEON_RV200) ||
    508 	    (sc->sc_family == RADEON_RV250) ||
    509 	    (sc->sc_family == RADEON_RV280) ||
    510 	    (sc->sc_family == RADEON_RV350)) {
    511 		bool inverted = 0;
    512 		/* backlight level is linear */
    513 		DPRINTF(("found RV* chip, backlight is supposedly linear\n"));
    514 		prop_dictionary_get_bool(device_properties(sc->sc_dev),
    515 		    "backlight_level_reverted", &inverted);
    516 		if (inverted) {
    517 			DPRINTF(("nope, it's inverted\n"));
    518 			sc->sc_flags |= RFB_INV_BLIGHT;
    519 		}
    520 	} else
    521 		sc->sc_flags |= RFB_INV_BLIGHT;
    522 
    523 	/*
    524 	 * XXX: to support true multihead, this must change.
    525 	 */
    526 	sc->sc_ndisplays = 1;
    527 
    528 	/* XXX: */
    529 	if (!HAS_CRTC2(sc)) {
    530 		sc->sc_ndisplays = 1;
    531 	}
    532 
    533 	if (pci_mapreg_map(pa, RADEON_MAPREG_MMIO, PCI_MAPREG_TYPE_MEM,	0,
    534 		&sc->sc_regt, &sc->sc_regh, &sc->sc_regaddr,
    535 		&sc->sc_regsz) != 0) {
    536 		aprint_error("%s: unable to map registers!\n", XNAME(sc));
    537 		goto error;
    538 	}
    539 
    540 	if (pci_mapreg_info(sc->sc_pc, sc->sc_pt, PCI_MAPREG_ROM,
    541 	     PCI_MAPREG_TYPE_ROM, &sc->sc_romaddr, &sc->sc_romsz, &flags) != 0)
    542 	{
    543 		aprint_error("%s: unable to find ROM!\n", XNAME(sc));
    544 		goto error;
    545 	}
    546 	sc->sc_romt = sc->sc_memt;
    547 
    548 	/* scratch register test... */
    549 	if (radeonfb_scratch_test(sc, RADEON_BIOS_0_SCRATCH, 0x55555555) ||
    550 	    radeonfb_scratch_test(sc, RADEON_BIOS_0_SCRATCH, 0xaaaaaaaa)) {
    551 		aprint_error("%s: scratch register test failed!\n", XNAME(sc));
    552 		goto error;
    553 	}
    554 
    555 	PRINTREG(RADEON_BIOS_4_SCRATCH);
    556 	PRINTREG(RADEON_FP_GEN_CNTL);
    557 	sc->sc_fp_gen_cntl = GET32(sc, RADEON_FP_GEN_CNTL);
    558 	PRINTREG(RADEON_FP2_GEN_CNTL);
    559 	PRINTREG(RADEON_TMDS_CNTL);
    560 	PRINTREG(RADEON_TMDS_TRANSMITTER_CNTL);
    561 	PRINTREG(RADEON_TMDS_PLL_CNTL);
    562 	PRINTREG(RADEON_LVDS_GEN_CNTL);
    563 	PRINTREG(RADEON_FP_HORZ_STRETCH);
    564 	PRINTREG(RADEON_FP_VERT_STRETCH);
    565 
    566 	/* XXX: RV100 specific */
    567 	PUT32(sc, RADEON_TMDS_PLL_CNTL, 0xa27);
    568 
    569 	PATCH32(sc, RADEON_TMDS_TRANSMITTER_CNTL,
    570 	    RADEON_TMDS_TRANSMITTER_PLLEN,
    571 	    RADEON_TMDS_TRANSMITTER_PLLEN | RADEON_TMDS_TRANSMITTER_PLLRST);
    572 
    573 	radeonfb_i2c_init(sc);
    574 
    575 	radeonfb_loadbios(sc, pa);
    576 
    577 #ifdef	RADEONFB_BIOS_INIT
    578 	if (radeonfb_bios_init(sc)) {
    579 		aprint_error("%s: BIOS inititialization failed\n", XNAME(sc));
    580 	}
    581 #endif
    582 
    583 	if (radeonfb_getclocks(sc)) {
    584 		aprint_error("%s: Unable to get reference clocks from BIOS\n",
    585 		    XNAME(sc));
    586 		goto error;
    587 	}
    588 
    589 	if (radeonfb_gettmds(sc)) {
    590 		aprint_error("%s: Unable to identify TMDS PLL settings\n",
    591 		    XNAME(sc));
    592 		goto error;
    593 	}
    594 
    595 	aprint_verbose("%s: refclk = %d.%03d MHz, refdiv = %d "
    596 	    "minpll = %d, maxpll = %d\n", XNAME(sc),
    597 	    (int)sc->sc_refclk / 1000, (int)sc->sc_refclk % 1000,
    598 	    (int)sc->sc_refdiv, (int)sc->sc_minpll, (int)sc->sc_maxpll);
    599 
    600 	radeonfb_getconnectors(sc);
    601 
    602 	radeonfb_set_fbloc(sc);
    603 
    604 	for (i = 0; radeonfb_limits[i].size; i++) {
    605 		if (sc->sc_memsz >= radeonfb_limits[i].size) {
    606 			sc->sc_maxx = radeonfb_limits[i].maxx;
    607 			sc->sc_maxy = radeonfb_limits[i].maxy;
    608 			sc->sc_maxbpp = radeonfb_limits[i].maxbpp;
    609 			/* framebuffer offset, start at a 4K page */
    610 			sc->sc_fboffset = sc->sc_memsz /
    611 			    radeonfb_limits[i].maxdisp;
    612 			/*
    613 			 * we use the fbsize to figure out where we can store
    614 			 * things like cursor data.
    615 			 */
    616 			sc->sc_fbsize =
    617 			    ROUNDUP(ROUNDUP(sc->sc_maxx * sc->sc_maxbpp / 8 ,
    618 					RADEON_STRIDEALIGN) * sc->sc_maxy,
    619 				4096);
    620 			break;
    621 		}
    622 	}
    623 
    624 
    625 	radeonfb_init_misc(sc);
    626 	radeonfb_init_palette(sc, 0);
    627 	if (HAS_CRTC2(sc))
    628 		radeonfb_init_palette(sc, 1);
    629 
    630 	/* program the DAC wirings */
    631 	for (i = 0; i < (HAS_CRTC2(sc) ? 2 : 1); i++) {
    632 		switch (sc->sc_ports[i].rp_dac_type) {
    633 		case RADEON_DAC_PRIMARY:
    634 			PATCH32(sc, RADEON_DAC_CNTL2,
    635 			    i ? RADEON_DAC2_DAC_CLK_SEL : 0,
    636 			    ~RADEON_DAC2_DAC_CLK_SEL);
    637 			break;
    638 		case RADEON_DAC_TVDAC:
    639 			/* we always use the TVDAC to drive a secondary analog
    640 			 * CRT for now.  if we ever support TV-out this will
    641 			 * have to change.
    642 			 */
    643 			SET32(sc, RADEON_DAC_CNTL2,
    644 			    RADEON_DAC2_DAC2_CLK_SEL);
    645 			PATCH32(sc, RADEON_DISP_HW_DEBUG,
    646 			    i ? 0 : RADEON_CRT2_DISP1_SEL,
    647 			    ~RADEON_CRT2_DISP1_SEL);
    648 			break;
    649 		}
    650 	}
    651 	PRINTREG(RADEON_DAC_CNTL2);
    652 	PRINTREG(RADEON_DISP_HW_DEBUG);
    653 
    654 	/* other DAC programming */
    655 	v = GET32(sc, RADEON_DAC_CNTL);
    656 	v &= (RADEON_DAC_RANGE_CNTL_MASK | RADEON_DAC_BLANKING);
    657 	v |= RADEON_DAC_MASK_ALL | RADEON_DAC_8BIT_EN;
    658 	PUT32(sc, RADEON_DAC_CNTL, v);
    659 	PRINTREG(RADEON_DAC_CNTL);
    660 
    661 	/* XXX: this may need more investigation */
    662 	PUT32(sc, RADEON_TV_DAC_CNTL, 0x00280203);
    663 	PRINTREG(RADEON_TV_DAC_CNTL);
    664 
    665 	/* enable TMDS */
    666 	SET32(sc, RADEON_FP_GEN_CNTL,
    667 	    RADEON_FP_TMDS_EN |
    668 		RADEON_FP_CRTC_DONT_SHADOW_VPAR |
    669 		RADEON_FP_CRTC_DONT_SHADOW_HEND);
    670 	/*
    671 	 * XXX
    672 	 * no idea why this is necessary - if I do not clear this bit on my
    673 	 * iBook G4 the screen remains black, even though it's already clear.
    674 	 * It needs to be set on my Sun XVR-100 for the DVI port to work
    675 	 */
    676 
    677 	if (sc->sc_fp_gen_cntl & RADEON_FP_SEL_CRTC2) {
    678 		SET32(sc, RADEON_FP_GEN_CNTL, RADEON_FP_SEL_CRTC2);
    679 	} else
    680 		CLR32(sc, RADEON_FP_GEN_CNTL, RADEON_FP_SEL_CRTC2);
    681 
    682 	if (HAS_CRTC2(sc))
    683 		SET32(sc, RADEON_FP2_GEN_CNTL, RADEON_FP2_SRC_SEL_CRTC2);
    684 
    685 	/*
    686 	 * we use bus_space_map instead of pci_mapreg, because we don't
    687 	 * need the full aperature space.  no point in wasting virtual
    688 	 * address space we don't intend to use, right?
    689 	 */
    690 	if ((sc->sc_memsz < (4096 * 1024)) ||
    691 	    (pci_mapreg_info(sc->sc_pc, sc->sc_pt, RADEON_MAPREG_VRAM,
    692 		PCI_MAPREG_TYPE_MEM, &sc->sc_memaddr, &bsz, NULL) != 0) ||
    693 	    (bsz < sc->sc_memsz)) {
    694 		sc->sc_memsz = 0;
    695 		aprint_error("%s: Bad frame buffer configuration\n",
    696 		    XNAME(sc));
    697 		goto error;
    698 	}
    699 
    700 	/* 64 MB should be enough -- more just wastes map entries */
    701 	if (sc->sc_memsz > (64 << 20))
    702 		sc->sc_memsz = (64 << 20);
    703 
    704 	sc->sc_memt = pa->pa_memt;
    705 	if (bus_space_map(sc->sc_memt, sc->sc_memaddr, sc->sc_memsz,
    706 		BUS_SPACE_MAP_LINEAR, &sc->sc_memh) != 0) {
    707 		sc->sc_memsz = 0;
    708 		aprint_error("%s: Unable to map frame buffer\n", XNAME(sc));
    709 		goto error;
    710 	}
    711 
    712 	aprint_normal("%s: %d MB aperture at 0x%08x, "
    713 	    "%d KB registers at 0x%08x\n", XNAME(sc),
    714 	    (int)sc->sc_memsz >> 20, (unsigned)sc->sc_memaddr,
    715 	    (int)sc->sc_regsz >> 10, (unsigned)sc->sc_regaddr);
    716 
    717 	/* setup default video mode from devprop (allows PROM override) */
    718 	sc->sc_defaultmode = radeonfb_default_mode;
    719 	if (prop_dictionary_get_cstring_nocopy(device_properties(sc->sc_dev),
    720 	    "videomode", &mptr)) {
    721 
    722 		strncpy(sc->sc_modebuf, mptr, sizeof(sc->sc_modebuf));
    723 		sc->sc_defaultmode = sc->sc_modebuf;
    724 	}
    725 
    726 	/* initialize some basic display parameters */
    727 	for (i = 0; i < sc->sc_ndisplays; i++) {
    728 		struct radeonfb_display *dp = &sc->sc_displays[i];
    729 		struct rasops_info *ri;
    730 		long defattr;
    731 		struct wsemuldisplaydev_attach_args aa;
    732 
    733 		/*
    734 		 * Figure out how many "displays" (desktops) we are going to
    735 		 * support.  If more than one, then each CRTC gets its own
    736 		 * programming.
    737 		 *
    738 		 * XXX: this code needs to change to support mergedfb.
    739 		 * XXX: would be nice to allow this to be overridden
    740 		 */
    741 		if (HAS_CRTC2(sc) && (sc->sc_ndisplays == 1)) {
    742 			DPRINTF(("dual crtcs!\n"));
    743 			dp->rd_ncrtcs = 2;
    744 			dp->rd_crtcs[0].rc_number = 0;
    745 			dp->rd_crtcs[1].rc_number = 1;
    746 		} else {
    747 			dp->rd_ncrtcs = 1;
    748 			dp->rd_crtcs[0].rc_number = i;
    749 		}
    750 
    751 		/* set up port pointer */
    752 		for (j = 0; j < dp->rd_ncrtcs; j++) {
    753 			dp->rd_crtcs[j].rc_port =
    754 			    &sc->sc_ports[dp->rd_crtcs[j].rc_number];
    755 		}
    756 
    757 		dp->rd_softc = sc;
    758 		dp->rd_wsmode = WSDISPLAYIO_MODE_EMUL;
    759 		dp->rd_bg = WS_DEFAULT_BG;
    760 		dp->rd_bpp = RADEONFB_DEFAULT_DEPTH;	/* XXX */
    761 
    762 		/* for text mode, we pick a resolution that won't
    763 		 * require panning */
    764 		radeonfb_pickres(dp, &dp->rd_virtx, &dp->rd_virty, 0);
    765 
    766 		aprint_normal("%s: display %d: "
    767 		    "initial virtual resolution %dx%d at %d bpp\n",
    768 		    XNAME(sc), i, dp->rd_virtx, dp->rd_virty, dp->rd_bpp);
    769 
    770 		/* now select the *video mode* that we will use */
    771 		for (j = 0; j < dp->rd_ncrtcs; j++) {
    772 			const struct videomode *vmp;
    773 			vmp = radeonfb_port_mode(sc, dp->rd_crtcs[j].rc_port,
    774 			    dp->rd_virtx, dp->rd_virty);
    775 
    776 			/*
    777 			 * virtual resolution should be at least as high as
    778 			 * physical
    779 			 */
    780 			if (dp->rd_virtx < vmp->hdisplay ||
    781 			    dp->rd_virty < vmp->vdisplay) {
    782 				dp->rd_virtx = vmp->hdisplay;
    783 				dp->rd_virty = vmp->vdisplay;
    784 			}
    785 
    786 			dp->rd_crtcs[j].rc_videomode = *vmp;
    787 			printf("%s: port %d: physical %dx%d %dHz\n",
    788 			    XNAME(sc), j, vmp->hdisplay, vmp->vdisplay,
    789 			    DIVIDE(DIVIDE(vmp->dot_clock * 1000,
    790 				       vmp->htotal), vmp->vtotal));
    791 		}
    792 
    793 		/* N.B.: radeon wants 64-byte aligned stride */
    794 		dp->rd_stride = dp->rd_virtx * dp->rd_bpp / 8;
    795 		dp->rd_stride = ROUNDUP(dp->rd_stride, RADEON_STRIDEALIGN);
    796 
    797 		dp->rd_offset = sc->sc_fboffset * i;
    798 		dp->rd_fbptr = (vaddr_t)bus_space_vaddr(sc->sc_memt,
    799 		    sc->sc_memh) + dp->rd_offset;
    800 		dp->rd_curoff = sc->sc_fbsize;
    801 		dp->rd_curptr = dp->rd_fbptr + dp->rd_curoff;
    802 
    803 		DPRINTF(("fpbtr = %p\n", (void *)dp->rd_fbptr));
    804 
    805 		switch (dp->rd_bpp) {
    806 		case 8:
    807 			dp->rd_format = 2;
    808 			break;
    809 		case 32:
    810 			dp->rd_format = 6;
    811 			break;
    812 		default:
    813 			aprint_error("%s: bad depth %d\n", XNAME(sc),
    814 			    dp->rd_bpp);
    815 			goto error;
    816 		}
    817 
    818 		DPRINTF(("init engine\n"));
    819 		/* XXX: this seems suspicious - per display engine
    820 		   initialization? */
    821 		radeonfb_engine_init(dp);
    822 
    823 		/* copy the template into place */
    824 		dp->rd_wsscreens_storage[0] = radeonfb_stdscreen;
    825 		dp->rd_wsscreens = dp->rd_wsscreens_storage;
    826 
    827 		/* and make up the list */
    828 		dp->rd_wsscreenlist.nscreens = 1;
    829 		dp->rd_wsscreenlist.screens = (void *)&dp->rd_wsscreens;
    830 
    831 		vcons_init(&dp->rd_vd, dp, dp->rd_wsscreens,
    832 		    &radeonfb_accessops);
    833 
    834 		dp->rd_vd.init_screen = radeonfb_init_screen;
    835 
    836 		dp->rd_console = 0;
    837 		prop_dictionary_get_bool(device_properties(sc->sc_dev),
    838 		    "is_console", &dp->rd_console);
    839 
    840 		dp->rd_vscreen.scr_flags |= VCONS_SCREEN_IS_STATIC;
    841 
    842 
    843 		vcons_init_screen(&dp->rd_vd, &dp->rd_vscreen,
    844 		    dp->rd_console, &defattr);
    845 
    846 		ri = &dp->rd_vscreen.scr_ri;
    847 
    848 		/* clear the screen */
    849 		rasops_unpack_attr(defattr, &fg, &bg, &ul);
    850 		radeonfb_rectfill(dp, 0, 0, ri->ri_width, ri->ri_height,
    851 		    ri->ri_devcmap[bg & 0xf]);
    852 
    853 		dp->rd_wsscreens->textops = &ri->ri_ops;
    854 		dp->rd_wsscreens->capabilities = ri->ri_caps;
    855 		dp->rd_wsscreens->nrows = ri->ri_rows;
    856 		dp->rd_wsscreens->ncols = ri->ri_cols;
    857 
    858 #ifdef SPLASHSCREEN
    859 		dp->rd_splash.si_depth = ri->ri_depth;
    860 		dp->rd_splash.si_bits = ri->ri_bits;
    861 		dp->rd_splash.si_hwbits = ri->ri_hwbits;
    862 		dp->rd_splash.si_width = ri->ri_width;
    863 		dp->rd_splash.si_height = ri->ri_height;
    864 		dp->rd_splash.si_stride = ri->ri_stride;
    865 		dp->rd_splash.si_fillrect = NULL;
    866 #endif
    867 		dp->rd_gc.gc_bitblt = radeonfb_bitblt;
    868 		dp->rd_gc.gc_rop = RADEON_ROP3_S;
    869 		dp->rd_gc.gc_blitcookie = dp;
    870 		glyphcache_init(&dp->rd_gc, dp->rd_virty + 4,
    871 		    (0x800000 / dp->rd_stride) - (dp->rd_virty + 4),
    872 		    dp->rd_virty,
    873 		    ri->ri_font->fontwidth,
    874 		    ri->ri_font->fontheight,
    875 		    defattr);
    876 		if (dp->rd_console) {
    877 
    878 			radeonfb_modeswitch(dp);
    879 			wsdisplay_cnattach(dp->rd_wsscreens, ri, 0, 0,
    880 			    defattr);
    881 #ifdef SPLASHSCREEN
    882 			if (splash_render(&dp->rd_splash,
    883 			    SPLASH_F_CENTER|SPLASH_F_FILL) == 0)
    884 				SCREEN_DISABLE_DRAWING(&dp->rd_vscreen);
    885 			else
    886 #endif
    887 				vcons_replay_msgbuf(&dp->rd_vscreen);
    888 		} else {
    889 
    890 			/*
    891 			 * since we're not the console we can postpone
    892 			 * the rest until someone actually allocates a
    893 			 * screen for us.  but we do clear the screen
    894 			 * at least.
    895 			 */
    896 			memset(ri->ri_bits, 0, 1024);
    897 
    898 			radeonfb_modeswitch(dp);
    899 #ifdef SPLASHSCREEN
    900 			if (splash_render(&dp->rd_splash,
    901 			    SPLASH_F_CENTER|SPLASH_F_FILL) == 0)
    902 				SCREEN_DISABLE_DRAWING(&dp->rd_vscreen);
    903 #endif
    904 		}
    905 
    906 		aa.console = dp->rd_console;
    907 		aa.scrdata = &dp->rd_wsscreenlist;
    908 		aa.accessops = &radeonfb_accessops;
    909 		aa.accesscookie = &dp->rd_vd;
    910 
    911 		config_found(sc->sc_dev, &aa, wsemuldisplaydevprint);
    912 
    913 		radeonfb_blank(dp, 0);
    914 
    915 		/* Initialise delayed lvds operations for backlight. */
    916 		callout_init(&dp->rd_bl_lvds_co, 0);
    917 		callout_setfunc(&dp->rd_bl_lvds_co,
    918 				radeonfb_lvds_callout, dp);
    919 	}
    920 
    921 	/*
    922 	 * if we have console output via firmware like on sparc64 it may
    923 	 * interfere with DAC programming so program the palette again
    924 	 * here after we took over
    925 	 */
    926 	radeonfb_init_palette(sc, 0);
    927 	if (HAS_CRTC2(sc))
    928 		radeonfb_init_palette(sc, 1);
    929 
    930 	pmf_event_register(dev, PMFE_DISPLAY_BRIGHTNESS_UP,
    931 	    radeonfb_brightness_up, TRUE);
    932 	pmf_event_register(dev, PMFE_DISPLAY_BRIGHTNESS_DOWN,
    933 	    radeonfb_brightness_down, TRUE);
    934 
    935 	config_found_ia(dev, "drm", aux, radeonfb_drm_print);
    936 
    937 	return;
    938 
    939 error:
    940 	if (sc->sc_biossz)
    941 		free(sc->sc_bios, M_DEVBUF);
    942 
    943 	if (sc->sc_regsz)
    944 		bus_space_unmap(sc->sc_regt, sc->sc_regh, sc->sc_regsz);
    945 
    946 	if (sc->sc_memsz)
    947 		bus_space_unmap(sc->sc_memt, sc->sc_memh, sc->sc_memsz);
    948 }
    949 
    950 static void
    951 radeonfb_map(struct radeonfb_softc *sc)
    952 {
    953 	if (bus_space_map(sc->sc_regt, sc->sc_regaddr, sc->sc_regsz, 0,
    954 	    &sc->sc_regh) != 0) {
    955 		aprint_error("%s: unable to map registers!\n", XNAME(sc));
    956 		return;
    957 	}
    958 	if (bus_space_map(sc->sc_memt, sc->sc_memaddr, sc->sc_memsz,
    959 		BUS_SPACE_MAP_LINEAR, &sc->sc_memh) != 0) {
    960 		sc->sc_memsz = 0;
    961 		aprint_error("%s: Unable to map frame buffer\n", XNAME(sc));
    962 		return;
    963 	}
    964 }
    965 
    966 static void
    967 radeonfb_unmap(struct radeonfb_softc *sc)
    968 {
    969 	bus_space_unmap(sc->sc_regt, sc->sc_regh, sc->sc_regsz);
    970 	bus_space_unmap(sc->sc_memt, sc->sc_memh, sc->sc_memsz);
    971 }
    972 
    973 static int
    974 radeonfb_drm_print(void *aux, const char *pnp)
    975 {
    976 	if (pnp)
    977 		aprint_normal("drm at %s", pnp);
    978 	return (UNCONF);
    979 }
    980 
    981 int
    982 radeonfb_ioctl(void *v, void *vs,
    983     unsigned long cmd, void *d, int flag, struct lwp *l)
    984 {
    985 	struct vcons_data	*vd;
    986 	struct radeonfb_display	*dp;
    987 	struct radeonfb_softc	*sc;
    988 	struct wsdisplay_param  *param;
    989 
    990 	vd = (struct vcons_data *)v;
    991 	dp = (struct radeonfb_display *)vd->cookie;
    992 	sc = dp->rd_softc;
    993 
    994 	switch (cmd) {
    995 	case WSDISPLAYIO_GTYPE:
    996 		*(unsigned *)d = WSDISPLAY_TYPE_PCIMISC;
    997 		return 0;
    998 
    999 	case WSDISPLAYIO_GINFO:
   1000 		if (vd->active != NULL) {
   1001 			struct wsdisplay_fbinfo *fb;
   1002 			fb = (struct wsdisplay_fbinfo *)d;
   1003 			fb->width = dp->rd_virtx;
   1004 			fb->height = dp->rd_virty;
   1005 			fb->depth = dp->rd_bpp;
   1006 			fb->cmsize = 256;
   1007 			return 0;
   1008 		} else
   1009 			return ENODEV;
   1010 	case WSDISPLAYIO_GVIDEO:
   1011 		if (radeonfb_isblank(dp))
   1012 			*(unsigned *)d = WSDISPLAYIO_VIDEO_OFF;
   1013 		else
   1014 			*(unsigned *)d = WSDISPLAYIO_VIDEO_ON;
   1015 		return 0;
   1016 
   1017 	case WSDISPLAYIO_SVIDEO:
   1018 		radeonfb_blank(dp,
   1019 		    (*(unsigned int *)d == WSDISPLAYIO_VIDEO_OFF));
   1020 		return 0;
   1021 
   1022 	case WSDISPLAYIO_GETCMAP:
   1023 #if 0
   1024 		if (dp->rd_bpp == 8)
   1025 			return radeonfb_getcmap(sc,
   1026 			    (struct wsdisplay_cmap *)d);
   1027 #endif
   1028 		return EINVAL;
   1029 
   1030 	case WSDISPLAYIO_PUTCMAP:
   1031 #if 0
   1032 		if (dp->rd_bpp == 8)
   1033 			return radeonfb_putcmap(sc,
   1034 			    (struct wsdisplay_cmap *)d);
   1035 #endif
   1036 		return EINVAL;
   1037 
   1038 	case WSDISPLAYIO_LINEBYTES:
   1039 		*(unsigned *)d = dp->rd_stride;
   1040 		return 0;
   1041 
   1042 	case WSDISPLAYIO_SMODE:
   1043 		if (*(int *)d != dp->rd_wsmode) {
   1044 			dp->rd_wsmode = *(int *)d;
   1045 			if ((dp->rd_wsmode == WSDISPLAYIO_MODE_EMUL) &&
   1046 			    (dp->rd_vd.active)) {
   1047 			    	radeonfb_map(sc);
   1048 				radeonfb_engine_init(dp);
   1049 				glyphcache_wipe(&dp->rd_gc);
   1050 				radeonfb_init_palette(sc, dp == &sc->sc_displays[0] ? 0 : 1);
   1051 				radeonfb_modeswitch(dp);
   1052 				vcons_redraw_screen(dp->rd_vd.active);
   1053 			} else {
   1054 				radeonfb_unmap(sc);
   1055 			}
   1056 		}
   1057 		return 0;
   1058 
   1059 	case WSDISPLAYIO_GCURMAX:
   1060 		((struct wsdisplay_curpos *)d)->x = RADEON_CURSORMAXX;
   1061 		((struct wsdisplay_curpos *)d)->y = RADEON_CURSORMAXY;
   1062 		return 0;
   1063 
   1064 	case WSDISPLAYIO_SCURSOR:
   1065 		return radeonfb_set_cursor(dp, (struct wsdisplay_cursor *)d);
   1066 
   1067 	case WSDISPLAYIO_GCURSOR:
   1068 		return EPASSTHROUGH;
   1069 
   1070 	case WSDISPLAYIO_GCURPOS:
   1071 		((struct wsdisplay_curpos *)d)->x = dp->rd_cursor.rc_pos.x;
   1072 		((struct wsdisplay_curpos *)d)->y = dp->rd_cursor.rc_pos.y;
   1073 		return 0;
   1074 
   1075 	case WSDISPLAYIO_SCURPOS:
   1076 		return radeonfb_set_curpos(dp, (struct wsdisplay_curpos *)d);
   1077 
   1078 	case WSDISPLAYIO_SSPLASH:
   1079 #if defined(SPLASHSCREEN)
   1080 		if (*(int *)d == 1) {
   1081 			SCREEN_DISABLE_DRAWING(&dp->rd_vscreen);
   1082 			splash_render(&dp->rd_splash,
   1083 			    SPLASH_F_CENTER|SPLASH_F_FILL);
   1084 		} else
   1085 			SCREEN_ENABLE_DRAWING(&dp->rd_vscreen);
   1086 		return 0;
   1087 #else
   1088 		return ENODEV;
   1089 #endif
   1090 	case WSDISPLAYIO_GETPARAM:
   1091 		param = (struct wsdisplay_param *)d;
   1092 		if (param->param == WSDISPLAYIO_PARAM_BACKLIGHT) {
   1093 			param->min = 0;
   1094 			param->max = RADEONFB_BACKLIGHT_MAX;
   1095 			param->curval = radeonfb_get_backlight(dp);
   1096 			return 0;
   1097 		}
   1098 		return EPASSTHROUGH;
   1099 
   1100 	case WSDISPLAYIO_SETPARAM:
   1101 		param = (struct wsdisplay_param *)d;
   1102 		if (param->param == WSDISPLAYIO_PARAM_BACKLIGHT) {
   1103 			return radeonfb_set_backlight(dp, param->curval);
   1104 		}
   1105 		return EPASSTHROUGH;
   1106 
   1107 	/* PCI config read/write passthrough. */
   1108 	case PCI_IOC_CFGREAD:
   1109 	case PCI_IOC_CFGWRITE:
   1110 		return pci_devioctl(sc->sc_pc, sc->sc_pt, cmd, d, flag, l);
   1111 
   1112 	case WSDISPLAYIO_GET_BUSID:
   1113 		return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc,
   1114 		    sc->sc_pt, d);
   1115 
   1116 	case WSDISPLAYIO_GET_EDID: {
   1117 		struct wsdisplayio_edid_info *ei = d;
   1118 		return wsdisplayio_get_edid(sc->sc_dev, ei);
   1119 	}
   1120 
   1121 	default:
   1122 		return EPASSTHROUGH;
   1123 	}
   1124 }
   1125 
   1126 paddr_t
   1127 radeonfb_mmap(void *v, void *vs, off_t offset, int prot)
   1128 {
   1129 	struct vcons_data	*vd;
   1130 	struct radeonfb_display	*dp;
   1131 	struct radeonfb_softc	*sc;
   1132 	paddr_t			pa;
   1133 
   1134 	vd = (struct vcons_data *)v;
   1135 	dp = (struct radeonfb_display *)vd->cookie;
   1136 	sc = dp->rd_softc;
   1137 
   1138 	/* XXX: note that we don't allow mapping of registers right now */
   1139 	/* XXX: this means that the XFree86 radeon driver won't work */
   1140 	if ((offset >= 0) && (offset < (dp->rd_virty * dp->rd_stride))) {
   1141 		pa = bus_space_mmap(sc->sc_memt,
   1142 		    sc->sc_memaddr + dp->rd_offset + offset, 0,
   1143 		    prot, BUS_SPACE_MAP_LINEAR);
   1144 		return pa;
   1145 	}
   1146 
   1147 #ifdef RADEONFB_MMAP_BARS
   1148 	/*
   1149 	 * restrict all other mappings to processes with superuser privileges
   1150 	 * or the kernel itself
   1151 	 */
   1152 	if (kauth_authorize_machdep(kauth_cred_get(), KAUTH_MACHDEP_UNMANAGEDMEM,
   1153 	    NULL, NULL, NULL, NULL) != 0) {
   1154 		aprint_error_dev(sc->sc_dev, "mmap() rejected.\n");
   1155 		return -1;
   1156 	}
   1157 
   1158 	if ((offset >= sc->sc_regaddr) &&
   1159 	    (offset < sc->sc_regaddr + sc->sc_regsz)) {
   1160 		return bus_space_mmap(sc->sc_regt, offset, 0, prot,
   1161 		    BUS_SPACE_MAP_LINEAR);
   1162 	}
   1163 
   1164 	if ((offset >= sc->sc_memaddr) &&
   1165 	    (offset < sc->sc_memaddr + sc->sc_memsz)) {
   1166 		return bus_space_mmap(sc->sc_memt, offset, 0, prot,
   1167 		    BUS_SPACE_MAP_LINEAR);
   1168 	}
   1169 
   1170 	if ((offset >= sc->sc_romaddr) &&
   1171 	    (offset < sc->sc_romaddr + sc->sc_romsz)) {
   1172 		return bus_space_mmap(sc->sc_memt, offset, 0, prot,
   1173 		    BUS_SPACE_MAP_LINEAR);
   1174 	}
   1175 
   1176 #ifdef PCI_MAGIC_IO_RANGE
   1177 	/* allow mapping of IO space */
   1178 	if ((offset >= PCI_MAGIC_IO_RANGE) &&
   1179 	    (offset < PCI_MAGIC_IO_RANGE + 0x10000)) {
   1180 		pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE,
   1181 		    0, prot, 0);
   1182 		return pa;
   1183 	}
   1184 #endif /* PCI_MAGIC_IO_RANGE */
   1185 
   1186 #endif /* RADEONFB_MMAP_BARS */
   1187 
   1188 	return -1;
   1189 }
   1190 
   1191 static void
   1192 radeonfb_loadbios(struct radeonfb_softc *sc, const struct pci_attach_args *pa)
   1193 {
   1194 	bus_space_tag_t		romt;
   1195 	bus_space_handle_t	romh, biosh;
   1196 	bus_size_t		romsz;
   1197 	bus_addr_t		ptr;
   1198 
   1199 	if (pci_mapreg_map(pa, PCI_MAPREG_ROM, PCI_MAPREG_TYPE_ROM,
   1200 		BUS_SPACE_MAP_PREFETCHABLE, &romt, &romh, NULL, &romsz) != 0) {
   1201 		aprint_verbose("%s: unable to map BIOS!\n", XNAME(sc));
   1202 		return;
   1203 	}
   1204 
   1205 	pci_find_rom(pa, romt, romh, PCI_ROM_CODE_TYPE_X86, &biosh,
   1206 	    &sc->sc_biossz);
   1207 	if (sc->sc_biossz == 0) {
   1208 		aprint_verbose("%s: Video BIOS not present\n", XNAME(sc));
   1209 		return;
   1210 	}
   1211 
   1212 	sc->sc_bios = malloc(sc->sc_biossz, M_DEVBUF, M_WAITOK);
   1213 	bus_space_read_region_1(romt, biosh, 0, sc->sc_bios, sc->sc_biossz);
   1214 
   1215 	/* unmap the PCI expansion rom */
   1216 	bus_space_unmap(romt, romh, romsz);
   1217 
   1218 	/* turn off rom decoder now */
   1219 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM,
   1220 	    pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM) &
   1221 	    ~PCI_MAPREG_ROM_ENABLE);
   1222 
   1223 	ptr = GETBIOS16(sc, 0x48);
   1224 	if ((GETBIOS32(sc, ptr + 4) == 0x41544f4d /* "ATOM" */) ||
   1225 	    (GETBIOS32(sc, ptr + 4) == 0x4d4f5441 /* "MOTA" */)) {
   1226 		sc->sc_flags |= RFB_ATOM;
   1227 	}
   1228 
   1229 	aprint_verbose("%s: Found %d KB %s BIOS\n", XNAME(sc),
   1230 	    (unsigned)sc->sc_biossz >> 10, IS_ATOM(sc) ? "ATOM" : "Legacy");
   1231 }
   1232 
   1233 
   1234 uint32_t
   1235 radeonfb_get32(struct radeonfb_softc *sc, uint32_t reg)
   1236 {
   1237 
   1238 	return bus_space_read_4(sc->sc_regt, sc->sc_regh, reg);
   1239 }
   1240 
   1241 void
   1242 radeonfb_put32(struct radeonfb_softc *sc, uint32_t reg, uint32_t val)
   1243 {
   1244 
   1245 	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, val);
   1246 }
   1247 
   1248 void
   1249 radeonfb_put32s(struct radeonfb_softc *sc, uint32_t reg, uint32_t val)
   1250 {
   1251 
   1252 	bus_space_write_stream_4(sc->sc_regt, sc->sc_regh, reg, val);
   1253 }
   1254 
   1255 void
   1256 radeonfb_mask32(struct radeonfb_softc *sc, uint32_t reg,
   1257     uint32_t andmask, uint32_t ormask)
   1258 {
   1259 	int		s;
   1260 	uint32_t	val;
   1261 
   1262 	s = splhigh();
   1263 	val = radeonfb_get32(sc, reg);
   1264 	val = (val & andmask) | ormask;
   1265 	radeonfb_put32(sc, reg, val);
   1266 	splx(s);
   1267 }
   1268 
   1269 uint32_t
   1270 radeonfb_getindex(struct radeonfb_softc *sc, uint32_t idx)
   1271 {
   1272 	int		s;
   1273 	uint32_t	val;
   1274 
   1275 	s = splhigh();
   1276 	radeonfb_put32(sc, RADEON_MM_INDEX, idx);
   1277 	val = radeonfb_get32(sc, RADEON_MM_DATA);
   1278 	splx(s);
   1279 
   1280 	return (val);
   1281 }
   1282 
   1283 void
   1284 radeonfb_putindex(struct radeonfb_softc *sc, uint32_t idx, uint32_t val)
   1285 {
   1286 	int	s;
   1287 
   1288 	s = splhigh();
   1289 	radeonfb_put32(sc, RADEON_MM_INDEX, idx);
   1290 	radeonfb_put32(sc, RADEON_MM_DATA, val);
   1291 	splx(s);
   1292 }
   1293 
   1294 void
   1295 radeonfb_maskindex(struct radeonfb_softc *sc, uint32_t idx,
   1296     uint32_t andmask, uint32_t ormask)
   1297 {
   1298 	int		s;
   1299 	uint32_t	val;
   1300 
   1301 	s = splhigh();
   1302 	radeonfb_put32(sc, RADEON_MM_INDEX, idx);
   1303 	val = radeonfb_get32(sc, RADEON_MM_DATA);
   1304 	val = (val & andmask) | ormask;
   1305 	radeonfb_put32(sc, RADEON_MM_DATA, val);
   1306 	splx(s);
   1307 }
   1308 
   1309 uint32_t
   1310 radeonfb_getpll(struct radeonfb_softc *sc, uint32_t idx)
   1311 {
   1312 	int		s;
   1313 	uint32_t	val;
   1314 
   1315 	s = splhigh();
   1316 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_INDEX, idx & 0x3f);
   1317 	val = radeonfb_get32(sc, RADEON_CLOCK_CNTL_DATA);
   1318 	if (HAS_R300CG(sc))
   1319 		radeonfb_r300cg_workaround(sc);
   1320 	splx(s);
   1321 
   1322 	return (val);
   1323 }
   1324 
   1325 void
   1326 radeonfb_putpll(struct radeonfb_softc *sc, uint32_t idx, uint32_t val)
   1327 {
   1328 	int	s;
   1329 
   1330 	s = splhigh();
   1331 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_INDEX, (idx & 0x3f) |
   1332 	    RADEON_PLL_WR_EN);
   1333 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_DATA, val);
   1334 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_INDEX, 0);
   1335 	splx(s);
   1336 }
   1337 
   1338 void
   1339 radeonfb_maskpll(struct radeonfb_softc *sc, uint32_t idx,
   1340     uint32_t andmask, uint32_t ormask)
   1341 {
   1342 	int		s;
   1343 	uint32_t	val;
   1344 
   1345 	s = splhigh();
   1346 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_INDEX, (idx & 0x3f) |
   1347 		RADEON_PLL_WR_EN);
   1348 	val = radeonfb_get32(sc, RADEON_CLOCK_CNTL_DATA);
   1349 	val = (val & andmask) | ormask;
   1350 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_DATA, val);
   1351 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_INDEX, 0);
   1352 	splx(s);
   1353 }
   1354 
   1355 int
   1356 radeonfb_scratch_test(struct radeonfb_softc *sc, int reg, uint32_t v)
   1357 {
   1358 	uint32_t	saved;
   1359 
   1360 	saved = GET32(sc, reg);
   1361 	PUT32(sc, reg, v);
   1362 	if (GET32(sc, reg) != v) {
   1363 		return -1;
   1364 	}
   1365 	PUT32(sc, reg, saved);
   1366 	return 0;
   1367 }
   1368 
   1369 uintmax_t
   1370 radeonfb_getprop_num(struct radeonfb_softc *sc, const char *name,
   1371     uintmax_t defval)
   1372 {
   1373 	prop_number_t	pn;
   1374 	pn = prop_dictionary_get(device_properties(sc->sc_dev), name);
   1375 	if (pn == NULL) {
   1376 		return defval;
   1377 	}
   1378 	KASSERT(prop_object_type(pn) == PROP_TYPE_NUMBER);
   1379 	return (prop_number_integer_value(pn));
   1380 }
   1381 
   1382 int
   1383 radeonfb_getclocks(struct radeonfb_softc *sc)
   1384 {
   1385 	bus_addr_t	ptr;
   1386 	int		refclk = 0;
   1387 	int		refdiv = 0;
   1388 	int		minpll = 0;
   1389 	int		maxpll = 0;
   1390 
   1391 	/* load initial property values if port/board provides them */
   1392 	refclk = radeonfb_getprop_num(sc, "refclk", 0) & 0xffff;
   1393 	refdiv = radeonfb_getprop_num(sc, "refdiv", 0) & 0xffff;
   1394 	minpll = radeonfb_getprop_num(sc, "minpll", 0) & 0xffffffffU;
   1395 	maxpll = radeonfb_getprop_num(sc, "maxpll", 0) & 0xffffffffU;
   1396 
   1397 	if (refclk && refdiv && minpll && maxpll)
   1398 		goto dontprobe;
   1399 
   1400 	if (!sc->sc_biossz) {
   1401 		/* no BIOS */
   1402 		aprint_verbose("%s: No video BIOS, using default clocks\n",
   1403 		    XNAME(sc));
   1404 		if (IS_IGP(sc))
   1405 			refclk = refclk ? refclk : 1432;
   1406 		else
   1407 			refclk = refclk ? refclk : 2700;
   1408 		refdiv = refdiv ? refdiv : 12;
   1409 		minpll = minpll ? minpll : 12500;
   1410 		maxpll = maxpll ? maxpll : 35000;
   1411 	} else if (IS_ATOM(sc)) {
   1412 		/* ATOM BIOS */
   1413 		ptr = GETBIOS16(sc, 0x48);
   1414 		ptr = GETBIOS16(sc, ptr + 32);	/* aka MasterDataStart */
   1415 		ptr = GETBIOS16(sc, ptr + 12);	/* pll info block */
   1416 		refclk = refclk ? refclk : GETBIOS16(sc, ptr + 82);
   1417 		minpll = minpll ? minpll : GETBIOS16(sc, ptr + 78);
   1418 		maxpll = maxpll ? maxpll : GETBIOS16(sc, ptr + 32);
   1419 		/*
   1420 		 * ATOM BIOS doesn't supply a reference divider, so we
   1421 		 * have to probe for it.
   1422 		 */
   1423 		if (refdiv < 2)
   1424 			refdiv = GETPLL(sc, RADEON_PPLL_REF_DIV) &
   1425 			    RADEON_PPLL_REF_DIV_MASK;
   1426 		/*
   1427 		 * if probe is zero, just assume one that should work
   1428 		 * for most parts
   1429 		 */
   1430 		if (refdiv < 2)
   1431 			refdiv = 12;
   1432 
   1433 	} else {
   1434 		/* Legacy BIOS */
   1435 		ptr = GETBIOS16(sc, 0x48);
   1436 		ptr = GETBIOS16(sc, ptr + 0x30);
   1437 		refclk = refclk ? refclk : GETBIOS16(sc, ptr + 0x0E);
   1438 		refdiv = refdiv ? refdiv : GETBIOS16(sc, ptr + 0x10);
   1439 		minpll = minpll ? minpll : GETBIOS32(sc, ptr + 0x12);
   1440 		maxpll = maxpll ? maxpll : GETBIOS32(sc, ptr + 0x16);
   1441 	}
   1442 
   1443 
   1444 dontprobe:
   1445 	sc->sc_refclk = refclk * 10;
   1446 	sc->sc_refdiv = refdiv;
   1447 	sc->sc_minpll = minpll * 10;
   1448 	sc->sc_maxpll = maxpll * 10;
   1449 	return 0;
   1450 }
   1451 
   1452 int
   1453 radeonfb_calc_dividers(struct radeonfb_softc *sc, uint32_t dotclock,
   1454     uint32_t *postdivbit, uint32_t *feedbackdiv)
   1455 {
   1456 	int		i;
   1457 	uint32_t	outfreq;
   1458 	int		div;
   1459 
   1460 	DPRINTF(("dot clock: %u\n", dotclock));
   1461 	for (i = 0; (div = radeonfb_dividers[i].divider) != 0; i++) {
   1462 		outfreq = div * dotclock;
   1463 		if ((outfreq >= sc->sc_minpll) &&
   1464 		    (outfreq <= sc->sc_maxpll)) {
   1465 			DPRINTF(("outfreq: %u\n", outfreq));
   1466 			*postdivbit =
   1467 			    ((uint32_t)radeonfb_dividers[i].mask << 16);
   1468 			DPRINTF(("post divider: %d (mask %x)\n", div,
   1469 				    *postdivbit));
   1470 			break;
   1471 		}
   1472 	}
   1473 
   1474 	if (div == 0)
   1475 		return 1;
   1476 
   1477 	*feedbackdiv = DIVIDE(sc->sc_refdiv * outfreq, sc->sc_refclk);
   1478 	DPRINTF(("feedback divider: %d\n", *feedbackdiv));
   1479 	return 0;
   1480 }
   1481 
   1482 #if 0
   1483 #ifdef RADEONFB_DEBUG
   1484 static void
   1485 dump_buffer(const char *pfx, void *buffer, unsigned int size)
   1486 {
   1487 	char		asc[17];
   1488 	unsigned	ptr = (unsigned)buffer;
   1489 	char		*start = (char *)(ptr & ~0xf);
   1490 	char		*end = (char *)(ptr + size);
   1491 
   1492 	end = (char *)(((unsigned)end + 0xf) & ~0xf);
   1493 
   1494 	if (pfx == NULL) {
   1495 		pfx = "";
   1496 	}
   1497 
   1498 	while (start < end) {
   1499 		unsigned offset = (unsigned)start & 0xf;
   1500 		if (offset == 0) {
   1501 			printf("%s%x: ", pfx, (unsigned)start);
   1502 		}
   1503 		if (((unsigned)start < ptr) ||
   1504 		    ((unsigned)start >= (ptr + size))) {
   1505 			printf("  ");
   1506 			asc[offset] = ' ';
   1507 		} else {
   1508 			printf("%02x", *(unsigned char *)start);
   1509 			if ((*start >= ' ') && (*start <= '~')) {
   1510 				asc[offset] = *start;
   1511 			} else {
   1512 				asc[offset] = '.';
   1513 			}
   1514 		}
   1515 		asc[offset + 1] = 0;
   1516 		if (offset % 2) {
   1517 			printf(" ");
   1518 		}
   1519 		if (offset == 15) {
   1520 			printf(" %s\n", asc);
   1521 		}
   1522 		start++;
   1523 	}
   1524 }
   1525 #endif
   1526 #endif
   1527 
   1528 int
   1529 radeonfb_getconnectors(struct radeonfb_softc *sc)
   1530 {
   1531 	int	i;
   1532 	int	found = 0;
   1533 
   1534 	for (i = 0; i < 2; i++) {
   1535 		sc->sc_ports[i].rp_mon_type = RADEON_MT_UNKNOWN;
   1536 		sc->sc_ports[i].rp_ddc_type = RADEON_DDC_NONE;
   1537 		sc->sc_ports[i].rp_dac_type = RADEON_DAC_UNKNOWN;
   1538 		sc->sc_ports[i].rp_conn_type = RADEON_CONN_NONE;
   1539 		sc->sc_ports[i].rp_tmds_type = RADEON_TMDS_UNKNOWN;
   1540 	}
   1541 
   1542 	/*
   1543 	 * This logic is borrowed from Xorg's radeon driver.
   1544 	 */
   1545 	if (!sc->sc_biossz)
   1546 		goto nobios;
   1547 
   1548 	if (IS_ATOM(sc)) {
   1549 		/* not done yet */
   1550 	} else {
   1551 		uint16_t	ptr;
   1552 		int		port = 0;
   1553 
   1554 		ptr = GETBIOS16(sc, 0x48);
   1555 		ptr = GETBIOS16(sc, ptr + 0x50);
   1556 		for (i = 1; i < 4; i++) {
   1557 			uint16_t	entry;
   1558 			uint8_t		conn, ddc, dac, tmds;
   1559 
   1560 			/*
   1561 			 * Parse the connector table.  From reading the code,
   1562 			 * it appears to made up of 16-bit entries for each
   1563 			 * connector.  The 16-bits are defined as:
   1564 			 *
   1565 			 * bits 12-15	- connector type (0 == end of table)
   1566 			 * bits 8-11	- DDC type
   1567 			 * bits 5-7	- ???
   1568 			 * bit 4	- TMDS type (1 = EXT, 0 = INT)
   1569 			 * bits 1-3	- ???
   1570 			 * bit 0	- DAC, 1 = TVDAC, 0 = primary
   1571 			 */
   1572 			if (!GETBIOS8(sc, ptr + i * 2) && i > 1)
   1573 				break;
   1574 			entry = GETBIOS16(sc, ptr + i * 2);
   1575 
   1576 			conn = (entry >> 12) & 0xf;
   1577 			ddc = (entry >> 8) & 0xf;
   1578 			dac = (entry & 0x1) ? RADEON_DAC_TVDAC :
   1579 			    RADEON_DAC_PRIMARY;
   1580 			tmds = ((entry >> 4) & 0x1) ? RADEON_TMDS_EXT :
   1581 			    RADEON_TMDS_INT;
   1582 
   1583 			if (conn == RADEON_CONN_NONE)
   1584 				continue;	/* no connector */
   1585 
   1586 			if ((found > 0) &&
   1587 			    (sc->sc_ports[port].rp_ddc_type == ddc)) {
   1588 				/* duplicate entry for same connector */
   1589 				continue;
   1590 			}
   1591 
   1592 			/* internal DDC_DVI port gets priority */
   1593 			if ((ddc == RADEON_DDC_DVI) || (port == 1))
   1594 				port = 0;
   1595 			else
   1596 				port = 1;
   1597 
   1598 			sc->sc_ports[port].rp_ddc_type =
   1599 			    ddc > RADEON_DDC_CRT2 ? RADEON_DDC_NONE : ddc;
   1600 			sc->sc_ports[port].rp_dac_type = dac;
   1601 			sc->sc_ports[port].rp_conn_type =
   1602 			    min(conn, RADEON_CONN_UNSUPPORTED) ;
   1603 
   1604 			sc->sc_ports[port].rp_tmds_type = tmds;
   1605 
   1606 			if ((conn != RADEON_CONN_DVI_I) &&
   1607 			    (conn != RADEON_CONN_DVI_D) &&
   1608 			    (tmds == RADEON_TMDS_INT))
   1609 				sc->sc_ports[port].rp_tmds_type =
   1610 				    RADEON_TMDS_UNKNOWN;
   1611 
   1612 			found += (port + 1);
   1613 		}
   1614 	}
   1615 
   1616 nobios:
   1617 	if (!found) {
   1618 		DPRINTF(("No connector info in BIOS!\n"));
   1619 		/* default, port 0 = internal TMDS, port 1 = CRT */
   1620 		sc->sc_ports[0].rp_mon_type = RADEON_MT_UNKNOWN;
   1621 		sc->sc_ports[0].rp_ddc_type = RADEON_DDC_DVI;
   1622 		sc->sc_ports[0].rp_dac_type = RADEON_DAC_TVDAC;
   1623 		sc->sc_ports[0].rp_conn_type = RADEON_CONN_DVI_D;
   1624 		sc->sc_ports[0].rp_tmds_type = RADEON_TMDS_INT;
   1625 
   1626 		sc->sc_ports[1].rp_mon_type = RADEON_MT_UNKNOWN;
   1627 		sc->sc_ports[1].rp_ddc_type = RADEON_DDC_VGA;
   1628 		sc->sc_ports[1].rp_dac_type = RADEON_DAC_PRIMARY;
   1629 		sc->sc_ports[1].rp_conn_type = RADEON_CONN_CRT;
   1630 		sc->sc_ports[1].rp_tmds_type = RADEON_TMDS_EXT;
   1631 	}
   1632 
   1633 	/*
   1634 	 * Fixup for RS300/RS350/RS400 chips, that lack a primary DAC.
   1635 	 * these chips should use TVDAC for the VGA port.
   1636 	 */
   1637 	if (HAS_SDAC(sc)) {
   1638 		if (sc->sc_ports[0].rp_conn_type == RADEON_CONN_CRT) {
   1639 			sc->sc_ports[0].rp_dac_type = RADEON_DAC_TVDAC;
   1640 			sc->sc_ports[1].rp_dac_type = RADEON_DAC_PRIMARY;
   1641 		} else {
   1642 			sc->sc_ports[1].rp_dac_type = RADEON_DAC_TVDAC;
   1643 			sc->sc_ports[0].rp_dac_type = RADEON_DAC_PRIMARY;
   1644 		}
   1645 	} else if (!HAS_CRTC2(sc)) {
   1646 		sc->sc_ports[0].rp_dac_type = RADEON_DAC_PRIMARY;
   1647 	}
   1648 
   1649 	for (i = 0; i < 2; i++) {
   1650 		char	edid[128];
   1651 		uint8_t	ddc;
   1652 		struct edid_info *eip = &sc->sc_ports[i].rp_edid;
   1653 		prop_data_t edid_data;
   1654 
   1655 		DPRINTF(("Port #%d:\n", i));
   1656 		DPRINTF(("    conn = %d\n", sc->sc_ports[i].rp_conn_type));
   1657 		DPRINTF(("    ddc = %d\n", sc->sc_ports[i].rp_ddc_type));
   1658 		DPRINTF(("    dac = %d\n", sc->sc_ports[i].rp_dac_type));
   1659 		DPRINTF(("    tmds = %d\n", sc->sc_ports[i].rp_tmds_type));
   1660 
   1661 		sc->sc_ports[i].rp_edid_valid = 0;
   1662 		/* first look for static EDID data */
   1663 		if ((edid_data = prop_dictionary_get(device_properties(
   1664 		    sc->sc_dev), "EDID")) != NULL) {
   1665 
   1666 			aprint_normal_dev(sc->sc_dev, "using static EDID\n");
   1667 			memcpy(edid, prop_data_data_nocopy(edid_data), 128);
   1668 			if (edid_parse(edid, eip) == 0) {
   1669 
   1670 				sc->sc_ports[i].rp_edid_valid = 1;
   1671 			}
   1672 		}
   1673 		/* if we didn't find any we'll try to talk to the monitor */
   1674 		if (sc->sc_ports[i].rp_edid_valid != 1) {
   1675 
   1676 			ddc = sc->sc_ports[i].rp_ddc_type;
   1677 			if (ddc != RADEON_DDC_NONE) {
   1678 				if ((radeonfb_i2c_read_edid(sc, ddc, edid)
   1679 				    == 0) && (edid_parse(edid, eip) == 0)) {
   1680 
   1681 					sc->sc_ports[i].rp_edid_valid = 1;
   1682 					edid_print(eip);
   1683 				}
   1684 			}
   1685 		}
   1686 	}
   1687 
   1688 	return found;
   1689 }
   1690 
   1691 int
   1692 radeonfb_gettmds(struct radeonfb_softc *sc)
   1693 {
   1694 	int	i;
   1695 
   1696 	if (!sc->sc_biossz) {
   1697 		goto nobios;
   1698 	}
   1699 
   1700 	if (IS_ATOM(sc)) {
   1701 		/* XXX: not done yet */
   1702 	} else {
   1703 		uint16_t	ptr;
   1704 		int		n;
   1705 
   1706 		ptr = GETBIOS16(sc, 0x48);
   1707 		ptr = GETBIOS16(sc, ptr + 0x34);
   1708 		DPRINTF(("DFP table revision %d\n", GETBIOS8(sc, ptr)));
   1709 		if (GETBIOS8(sc, ptr) == 3) {
   1710 			/* revision three table */
   1711 			n = GETBIOS8(sc, ptr + 5) + 1;
   1712 			n = min(n, 4);
   1713 
   1714 			memset(sc->sc_tmds_pll, 0, sizeof (sc->sc_tmds_pll));
   1715 			for (i = 0; i < n; i++) {
   1716 				sc->sc_tmds_pll[i].rtp_pll = GETBIOS32(sc,
   1717 				    ptr + i * 10 + 8);
   1718 				sc->sc_tmds_pll[i].rtp_freq = GETBIOS16(sc,
   1719 				    ptr + i * 10 + 0x10);
   1720 				DPRINTF(("TMDS_PLL dot clock %d pll %x\n",
   1721 					    sc->sc_tmds_pll[i].rtp_freq,
   1722 					    sc->sc_tmds_pll[i].rtp_pll));
   1723 			}
   1724 			return 0;
   1725 		}
   1726 	}
   1727 
   1728 nobios:
   1729 	DPRINTF(("no suitable DFP table present\n"));
   1730 	for (i = 0;
   1731 	     i < sizeof (radeonfb_tmds_pll) / sizeof (radeonfb_tmds_pll[0]);
   1732 	     i++) {
   1733 		int	j;
   1734 
   1735 		if (radeonfb_tmds_pll[i].family != sc->sc_family)
   1736 			continue;
   1737 
   1738 		for (j = 0; j < 4; j++) {
   1739 			sc->sc_tmds_pll[j] = radeonfb_tmds_pll[i].plls[j];
   1740 			DPRINTF(("TMDS_PLL dot clock %d pll %x\n",
   1741 				    sc->sc_tmds_pll[j].rtp_freq,
   1742 				    sc->sc_tmds_pll[j].rtp_pll));
   1743 		}
   1744 		return 0;
   1745 	}
   1746 
   1747 	return -1;
   1748 }
   1749 
   1750 const struct videomode *
   1751 radeonfb_modelookup(const char *name)
   1752 {
   1753 	int	i;
   1754 
   1755 	for (i = 0; i < videomode_count; i++)
   1756 		if (!strcmp(name, videomode_list[i].name))
   1757 			return &videomode_list[i];
   1758 
   1759 	return NULL;
   1760 }
   1761 
   1762 void
   1763 radeonfb_pllwriteupdate(struct radeonfb_softc *sc, int crtc)
   1764 {
   1765 	if (crtc) {
   1766 		while (GETPLL(sc, RADEON_P2PLL_REF_DIV) &
   1767 		    RADEON_P2PLL_ATOMIC_UPDATE_R);
   1768 		SETPLL(sc, RADEON_P2PLL_REF_DIV, RADEON_P2PLL_ATOMIC_UPDATE_W);
   1769 	} else {
   1770 		while (GETPLL(sc, RADEON_PPLL_REF_DIV) &
   1771 		    RADEON_PPLL_ATOMIC_UPDATE_R);
   1772 		SETPLL(sc, RADEON_PPLL_REF_DIV, RADEON_PPLL_ATOMIC_UPDATE_W);
   1773 	}
   1774 }
   1775 
   1776 void
   1777 radeonfb_pllwaitatomicread(struct radeonfb_softc *sc, int crtc)
   1778 {
   1779 	int	i;
   1780 
   1781 	for (i = 10000; i; i--) {
   1782 		if (crtc) {
   1783 			if (GETPLL(sc, RADEON_P2PLL_REF_DIV) &
   1784 			    RADEON_P2PLL_ATOMIC_UPDATE_R)
   1785 				break;
   1786 		} else {
   1787 			if (GETPLL(sc, RADEON_PPLL_REF_DIV) &
   1788 			    RADEON_PPLL_ATOMIC_UPDATE_R)
   1789 				break;
   1790 		}
   1791 	}
   1792 }
   1793 
   1794 void
   1795 radeonfb_program_vclk(struct radeonfb_softc *sc, int dotclock, int crtc)
   1796 {
   1797 	uint32_t	pbit = 0;
   1798 	uint32_t	feed = 0;
   1799 	uint32_t	data;
   1800 #if 1
   1801 	int		i;
   1802 #endif
   1803 
   1804 	radeonfb_calc_dividers(sc, dotclock, &pbit, &feed);
   1805 
   1806 	if (crtc == 0) {
   1807 
   1808 		/* XXXX: mobility workaround missing */
   1809 		/* XXXX: R300 stuff missing */
   1810 
   1811 		PATCHPLL(sc, RADEON_VCLK_ECP_CNTL,
   1812 		    RADEON_VCLK_SRC_SEL_CPUCLK,
   1813 		    ~RADEON_VCLK_SRC_SEL_MASK);
   1814 
   1815 		/* put vclk into reset, use atomic updates */
   1816 		SETPLL(sc, RADEON_PPLL_CNTL,
   1817 		    RADEON_PPLL_REFCLK_SEL |
   1818 		    RADEON_PPLL_FBCLK_SEL |
   1819 		    RADEON_PPLL_RESET |
   1820 		    RADEON_PPLL_ATOMIC_UPDATE_EN |
   1821 		    RADEON_PPLL_VGA_ATOMIC_UPDATE_EN);
   1822 
   1823 		/* select clock 3 */
   1824 #if 0
   1825 		PATCH32(sc, RADEON_CLOCK_CNTL_INDEX, RADEON_PLL_DIV_SEL,
   1826 		    ~RADEON_PLL_DIV_SEL);
   1827 #else
   1828 		PATCH32(sc, RADEON_CLOCK_CNTL_INDEX, 0,
   1829 		    ~RADEON_PLL_DIV_SEL);
   1830 #endif
   1831 
   1832 		/* XXX: R300 family -- program divider differently? */
   1833 
   1834 		/* program reference divider */
   1835 		PATCHPLL(sc, RADEON_PPLL_REF_DIV, sc->sc_refdiv,
   1836 		    ~RADEON_PPLL_REF_DIV_MASK);
   1837 		PRINTPLL(RADEON_PPLL_REF_DIV);
   1838 
   1839 #if 0
   1840 		data = GETPLL(sc, RADEON_PPLL_DIV_3);
   1841 		data &= ~(RADEON_PPLL_FB3_DIV_MASK |
   1842 		    RADEON_PPLL_POST3_DIV_MASK);
   1843 		data |= pbit;
   1844 		data |= (feed & RADEON_PPLL_FB3_DIV_MASK);
   1845 		PUTPLL(sc, RADEON_PPLL_DIV_3, data);
   1846 #else
   1847 		for (i = 0; i < 4; i++) {
   1848 		}
   1849 #endif
   1850 
   1851 		/* use the atomic update */
   1852 		radeonfb_pllwriteupdate(sc, crtc);
   1853 
   1854 		/* and wait for it to complete */
   1855 		radeonfb_pllwaitatomicread(sc, crtc);
   1856 
   1857 		/* program HTOTAL (why?) */
   1858 		PUTPLL(sc, RADEON_HTOTAL_CNTL, 0);
   1859 
   1860 		/* drop reset */
   1861 		CLRPLL(sc, RADEON_PPLL_CNTL,
   1862 		    RADEON_PPLL_RESET | RADEON_PPLL_SLEEP |
   1863 		    RADEON_PPLL_ATOMIC_UPDATE_EN |
   1864 		    RADEON_PPLL_VGA_ATOMIC_UPDATE_EN);
   1865 
   1866 		PRINTPLL(RADEON_PPLL_CNTL);
   1867 
   1868 		/* give clock time to lock */
   1869 		delay(50000);
   1870 
   1871 		PATCHPLL(sc, RADEON_VCLK_ECP_CNTL,
   1872 		    RADEON_VCLK_SRC_SEL_PPLLCLK,
   1873 		    ~RADEON_VCLK_SRC_SEL_MASK);
   1874 
   1875 	} else {
   1876 
   1877 		PATCHPLL(sc, RADEON_PIXCLKS_CNTL,
   1878 		    RADEON_PIX2CLK_SRC_SEL_CPUCLK,
   1879 		    ~RADEON_PIX2CLK_SRC_SEL_MASK);
   1880 
   1881 		/* put vclk into reset, use atomic updates */
   1882 		SETPLL(sc, RADEON_P2PLL_CNTL,
   1883 		    RADEON_P2PLL_RESET |
   1884 		    RADEON_P2PLL_ATOMIC_UPDATE_EN |
   1885 		    RADEON_P2PLL_VGA_ATOMIC_UPDATE_EN);
   1886 
   1887 		/* XXX: R300 family -- program divider differently? */
   1888 
   1889 		/* program reference divider */
   1890 		PATCHPLL(sc, RADEON_P2PLL_REF_DIV, sc->sc_refdiv,
   1891 		    ~RADEON_P2PLL_REF_DIV_MASK);
   1892 
   1893 		/* program feedback and post dividers */
   1894 		data = GETPLL(sc, RADEON_P2PLL_DIV_0);
   1895 		data &= ~(RADEON_P2PLL_FB0_DIV_MASK |
   1896 		    RADEON_P2PLL_POST0_DIV_MASK);
   1897 		data |= pbit;
   1898 		data |= (feed & RADEON_P2PLL_FB0_DIV_MASK);
   1899 		PUTPLL(sc, RADEON_P2PLL_DIV_0, data);
   1900 
   1901 		/* use the atomic update */
   1902 		radeonfb_pllwriteupdate(sc, crtc);
   1903 
   1904 		/* and wait for it to complete */
   1905 		radeonfb_pllwaitatomicread(sc, crtc);
   1906 
   1907 		/* program HTOTAL (why?) */
   1908 		PUTPLL(sc, RADEON_HTOTAL2_CNTL, 0);
   1909 
   1910 		/* drop reset */
   1911 		CLRPLL(sc, RADEON_P2PLL_CNTL,
   1912 		    RADEON_P2PLL_RESET | RADEON_P2PLL_SLEEP |
   1913 		    RADEON_P2PLL_ATOMIC_UPDATE_EN |
   1914 		    RADEON_P2PLL_VGA_ATOMIC_UPDATE_EN);
   1915 
   1916 		/* allow time for clock to lock */
   1917 		delay(50000);
   1918 
   1919 		PATCHPLL(sc, RADEON_PIXCLKS_CNTL,
   1920 		    RADEON_PIX2CLK_SRC_SEL_P2PLLCLK,
   1921 		    ~RADEON_PIX2CLK_SRC_SEL_MASK);
   1922 	}
   1923 	PRINTREG(RADEON_CRTC_MORE_CNTL);
   1924 }
   1925 
   1926 void
   1927 radeonfb_modeswitch(struct radeonfb_display *dp)
   1928 {
   1929 	struct radeonfb_softc	*sc = dp->rd_softc;
   1930 	int			i;
   1931 
   1932 	/* blank the display while we switch modes */
   1933 	radeonfb_blank(dp, 1);
   1934 
   1935 #if 0
   1936 	SET32(sc, RADEON_CRTC_EXT_CNTL,
   1937 	    RADEON_CRTC_VSYNC_DIS | RADEON_CRTC_HSYNC_DIS |
   1938 	    RADEON_CRTC_DISPLAY_DIS /* | RADEON_CRTC_DISP_REQ_EN_B */);
   1939 #endif
   1940 
   1941 	/* these registers might get in the way... */
   1942 	PUT32(sc, RADEON_OVR_CLR, 0);
   1943 	PUT32(sc, RADEON_OVR_WID_LEFT_RIGHT, 0);
   1944 	PUT32(sc, RADEON_OVR_WID_TOP_BOTTOM, 0);
   1945 	PUT32(sc, RADEON_OV0_SCALE_CNTL, 0);
   1946 	PUT32(sc, RADEON_SUBPIC_CNTL, 0);
   1947 	PUT32(sc, RADEON_VIPH_CONTROL, 0);
   1948 	PUT32(sc, RADEON_I2C_CNTL_1, 0);
   1949 	PUT32(sc, RADEON_GEN_INT_CNTL, 0);
   1950 	PUT32(sc, RADEON_CAP0_TRIG_CNTL, 0);
   1951 	PUT32(sc, RADEON_CAP1_TRIG_CNTL, 0);
   1952 	PUT32(sc, RADEON_SURFACE_CNTL, 0);
   1953 
   1954 	for (i = 0; i < dp->rd_ncrtcs; i++)
   1955 		radeonfb_setcrtc(dp, i);
   1956 
   1957 	/* activate the display */
   1958 	radeonfb_blank(dp, 0);
   1959 }
   1960 
   1961 void
   1962 radeonfb_setcrtc(struct radeonfb_display *dp, int index)
   1963 {
   1964 	int			crtc;
   1965 	struct videomode	*mode;
   1966 	struct radeonfb_softc	*sc;
   1967 	struct radeonfb_crtc	*cp;
   1968 	uint32_t		v;
   1969 	uint32_t		gencntl;
   1970 	uint32_t		htotaldisp;
   1971 	uint32_t		hsyncstrt;
   1972 	uint32_t		vtotaldisp;
   1973 	uint32_t		vsyncstrt;
   1974 	uint32_t		fphsyncstrt;
   1975 	uint32_t		fpvsyncstrt;
   1976 	uint32_t		fphtotaldisp;
   1977 	uint32_t		fpvtotaldisp;
   1978 	uint32_t		pitch;
   1979 
   1980 	sc = dp->rd_softc;
   1981 	cp = &dp->rd_crtcs[index];
   1982 	crtc = cp->rc_number;
   1983 	mode = &cp->rc_videomode;
   1984 
   1985 #if 1
   1986 	pitch = (((dp->rd_virtx * dp->rd_bpp) + ((dp->rd_bpp * 8) - 1)) /
   1987 	    (dp->rd_bpp * 8));
   1988 #else
   1989 	pitch = (((sc->sc_maxx * sc->sc_maxbpp) + ((sc->sc_maxbpp * 8) - 1)) /
   1990 	    (sc->sc_maxbpp * 8));
   1991 #endif
   1992 
   1993 	switch (crtc) {
   1994 	case 0:
   1995 		gencntl = RADEON_CRTC_GEN_CNTL;
   1996 		htotaldisp = RADEON_CRTC_H_TOTAL_DISP;
   1997 		hsyncstrt = RADEON_CRTC_H_SYNC_STRT_WID;
   1998 		vtotaldisp = RADEON_CRTC_V_TOTAL_DISP;
   1999 		vsyncstrt = RADEON_CRTC_V_SYNC_STRT_WID;
   2000 		fpvsyncstrt = RADEON_FP_V_SYNC_STRT_WID;
   2001 		fphsyncstrt = RADEON_FP_H_SYNC_STRT_WID;
   2002 		fpvtotaldisp = RADEON_FP_CRTC_V_TOTAL_DISP;
   2003 		fphtotaldisp = RADEON_FP_CRTC_H_TOTAL_DISP;
   2004 		break;
   2005 	case 1:
   2006 		gencntl = RADEON_CRTC2_GEN_CNTL;
   2007 		htotaldisp = RADEON_CRTC2_H_TOTAL_DISP;
   2008 		hsyncstrt = RADEON_CRTC2_H_SYNC_STRT_WID;
   2009 		vtotaldisp = RADEON_CRTC2_V_TOTAL_DISP;
   2010 		vsyncstrt = RADEON_CRTC2_V_SYNC_STRT_WID;
   2011 		fpvsyncstrt = RADEON_FP_V2_SYNC_STRT_WID;
   2012 		fphsyncstrt = RADEON_FP_H2_SYNC_STRT_WID;
   2013 		fpvtotaldisp = RADEON_FP_CRTC2_V_TOTAL_DISP;
   2014 		fphtotaldisp = RADEON_FP_CRTC2_H_TOTAL_DISP;
   2015 		break;
   2016 	default:
   2017 		panic("Bad CRTC!");
   2018 		break;
   2019 	}
   2020 
   2021 	/*
   2022 	 * CRTC_GEN_CNTL - depth, accelerator mode, etc.
   2023 	 */
   2024 	/* only bother with 32bpp and 8bpp */
   2025 	v = dp->rd_format << RADEON_CRTC_PIX_WIDTH_SHIFT;
   2026 
   2027 	if (crtc == 1) {
   2028 		v |= RADEON_CRTC2_CRT2_ON | RADEON_CRTC2_EN;
   2029 	} else {
   2030 		v |= RADEON_CRTC_EXT_DISP_EN | RADEON_CRTC_EN;
   2031 	}
   2032 
   2033 	if (mode->flags & VID_DBLSCAN)
   2034 		v |= RADEON_CRTC2_DBL_SCAN_EN;
   2035 
   2036 	if (mode->flags & VID_INTERLACE)
   2037 		v |= RADEON_CRTC2_INTERLACE_EN;
   2038 
   2039 	if (mode->flags & VID_CSYNC) {
   2040 		v |= RADEON_CRTC2_CSYNC_EN;
   2041 		if (crtc == 1)
   2042 			v |= RADEON_CRTC2_VSYNC_TRISTAT;
   2043 	}
   2044 
   2045 	PUT32(sc, gencntl, v);
   2046 	DPRINTF(("CRTC%s_GEN_CNTL = %08x\n", crtc ? "2" : "", v));
   2047 
   2048 	/*
   2049 	 * CRTC_EXT_CNTL - preserve disable flags, set ATI linear and EXT_CNT
   2050 	 */
   2051 	v = GET32(sc, RADEON_CRTC_EXT_CNTL);
   2052 	if (crtc == 0) {
   2053 		v &= (RADEON_CRTC_VSYNC_DIS | RADEON_CRTC_HSYNC_DIS |
   2054 		    RADEON_CRTC_DISPLAY_DIS);
   2055 		v |= RADEON_XCRT_CNT_EN | RADEON_VGA_ATI_LINEAR;
   2056 		if (mode->flags & VID_CSYNC)
   2057 			v |= RADEON_CRTC_VSYNC_TRISTAT;
   2058 	}
   2059 	/* unconditional turn on CRT, in case first CRTC is DFP */
   2060 	v |= RADEON_CRTC_CRT_ON;
   2061 	PUT32(sc, RADEON_CRTC_EXT_CNTL, v);
   2062 	PRINTREG(RADEON_CRTC_EXT_CNTL);
   2063 
   2064 	/*
   2065 	 * H_TOTAL_DISP
   2066 	 */
   2067 	v = ((mode->hdisplay / 8) - 1) << 16;
   2068 	v |= (mode->htotal / 8) - 1;
   2069 	PUT32(sc, htotaldisp, v);
   2070 	DPRINTF(("CRTC%s_H_TOTAL_DISP = %08x\n", crtc ? "2" : "", v));
   2071 	PUT32(sc, fphtotaldisp, v);
   2072 	DPRINTF(("FP_H%s_TOTAL_DISP = %08x\n", crtc ? "2" : "", v));
   2073 
   2074 	/*
   2075 	 * H_SYNC_STRT_WID
   2076 	 */
   2077 	v = (((mode->hsync_end - mode->hsync_start) / 8) << 16);
   2078 	v |= mode->hsync_start;
   2079 	if (mode->flags & VID_NHSYNC)
   2080 		v |= RADEON_CRTC_H_SYNC_POL;
   2081 	PUT32(sc, hsyncstrt, v);
   2082 	DPRINTF(("CRTC%s_H_SYNC_STRT_WID = %08x\n", crtc ? "2" : "", v));
   2083 	PUT32(sc, fphsyncstrt, v);
   2084 	DPRINTF(("FP_H%s_SYNC_STRT_WID = %08x\n", crtc ? "2" : "", v));
   2085 
   2086 	/*
   2087 	 * V_TOTAL_DISP
   2088 	 */
   2089 	v = ((mode->vdisplay - 1) << 16);
   2090 	v |= (mode->vtotal - 1);
   2091 	PUT32(sc, vtotaldisp, v);
   2092 	DPRINTF(("CRTC%s_V_TOTAL_DISP = %08x\n", crtc ? "2" : "", v));
   2093 	PUT32(sc, fpvtotaldisp, v);
   2094 	DPRINTF(("FP_V%s_TOTAL_DISP = %08x\n", crtc ? "2" : "", v));
   2095 
   2096 	/*
   2097 	 * V_SYNC_STRT_WID
   2098 	 */
   2099 	v = ((mode->vsync_end - mode->vsync_start) << 16);
   2100 	v |= (mode->vsync_start - 1);
   2101 	if (mode->flags & VID_NVSYNC)
   2102 		v |= RADEON_CRTC_V_SYNC_POL;
   2103 	PUT32(sc, vsyncstrt, v);
   2104 	DPRINTF(("CRTC%s_V_SYNC_STRT_WID = %08x\n", crtc ? "2" : "", v));
   2105 	PUT32(sc, fpvsyncstrt, v);
   2106 	DPRINTF(("FP_V%s_SYNC_STRT_WID = %08x\n", crtc ? "2" : "", v));
   2107 
   2108 	radeonfb_program_vclk(sc, mode->dot_clock, crtc);
   2109 
   2110 	switch (crtc) {
   2111 	case 0:
   2112 		PUT32(sc, RADEON_CRTC_OFFSET, 0);
   2113 		PUT32(sc, RADEON_CRTC_OFFSET_CNTL, 0);
   2114 		PUT32(sc, RADEON_CRTC_PITCH, pitch);
   2115 		CLR32(sc, RADEON_DISP_MERGE_CNTL, RADEON_DISP_RGB_OFFSET_EN);
   2116 
   2117 		CLR32(sc, RADEON_CRTC_EXT_CNTL,
   2118 		    RADEON_CRTC_VSYNC_DIS | RADEON_CRTC_HSYNC_DIS |
   2119 		    RADEON_CRTC_DISPLAY_DIS /* | RADEON_CRTC_DISP_REQ_EN_B */);
   2120 		CLR32(sc, RADEON_CRTC_GEN_CNTL, RADEON_CRTC_DISP_REQ_EN_B);
   2121 		PRINTREG(RADEON_CRTC_EXT_CNTL);
   2122 		PRINTREG(RADEON_CRTC_GEN_CNTL);
   2123 		PRINTREG(RADEON_CLOCK_CNTL_INDEX);
   2124 		break;
   2125 
   2126 	case 1:
   2127 		PUT32(sc, RADEON_CRTC2_OFFSET, 0);
   2128 		PUT32(sc, RADEON_CRTC2_OFFSET_CNTL, 0);
   2129 		PUT32(sc, RADEON_CRTC2_PITCH, pitch);
   2130 		CLR32(sc, RADEON_DISP2_MERGE_CNTL, RADEON_DISP2_RGB_OFFSET_EN);
   2131 		CLR32(sc, RADEON_CRTC2_GEN_CNTL,
   2132 		    RADEON_CRTC2_VSYNC_DIS |
   2133 		    RADEON_CRTC2_HSYNC_DIS |
   2134 		    RADEON_CRTC2_DISP_DIS | RADEON_CRTC2_DISP_REQ_EN_B);
   2135 		PRINTREG(RADEON_CRTC2_GEN_CNTL);
   2136 		break;
   2137 	}
   2138 }
   2139 
   2140 int
   2141 radeonfb_isblank(struct radeonfb_display *dp)
   2142 {
   2143 	uint32_t	reg, mask;
   2144 
   2145 	if (dp->rd_crtcs[0].rc_number) {
   2146 		reg = RADEON_CRTC2_GEN_CNTL;
   2147 		mask = RADEON_CRTC2_DISP_DIS;
   2148 	} else {
   2149 		reg = RADEON_CRTC_EXT_CNTL;
   2150 		mask = RADEON_CRTC_DISPLAY_DIS;
   2151 	}
   2152 	return ((GET32(dp->rd_softc, reg) & mask) ? 1 : 0);
   2153 }
   2154 
   2155 void
   2156 radeonfb_blank(struct radeonfb_display *dp, int blank)
   2157 {
   2158 	struct radeonfb_softc	*sc = dp->rd_softc;
   2159 	uint32_t		reg, mask;
   2160 	uint32_t		fpreg, fpval;
   2161 	int			i;
   2162 
   2163 	for (i = 0; i < dp->rd_ncrtcs; i++) {
   2164 
   2165 		if (dp->rd_crtcs[i].rc_number) {
   2166 			reg = RADEON_CRTC2_GEN_CNTL;
   2167 			mask = RADEON_CRTC2_DISP_DIS;
   2168 			fpreg = RADEON_FP2_GEN_CNTL;
   2169 			fpval = RADEON_FP2_ON;
   2170 		} else {
   2171 			reg = RADEON_CRTC_EXT_CNTL;
   2172 			mask = RADEON_CRTC_DISPLAY_DIS;
   2173 			fpreg = RADEON_FP_GEN_CNTL;
   2174 			fpval = RADEON_FP_FPON;
   2175 		}
   2176 
   2177 		if (blank) {
   2178 			SET32(sc, reg, mask);
   2179 			CLR32(sc, fpreg, fpval);
   2180 		} else {
   2181 			CLR32(sc, reg, mask);
   2182 			SET32(sc, fpreg, fpval);
   2183 		}
   2184 	}
   2185 	PRINTREG(RADEON_FP_GEN_CNTL);
   2186 	PRINTREG(RADEON_FP2_GEN_CNTL);
   2187 }
   2188 
   2189 void
   2190 radeonfb_init_screen(void *cookie, struct vcons_screen *scr, int existing,
   2191     long *defattr)
   2192 {
   2193 	struct radeonfb_display *dp = cookie;
   2194 	struct rasops_info *ri = &scr->scr_ri;
   2195 
   2196 	/* initialize font subsystem */
   2197 	wsfont_init();
   2198 
   2199 	DPRINTF(("init screen called, existing %d\n", existing));
   2200 
   2201 	ri->ri_depth = dp->rd_bpp;
   2202 	ri->ri_width = dp->rd_virtx;
   2203 	ri->ri_height = dp->rd_virty;
   2204 	ri->ri_stride = dp->rd_stride;
   2205 	ri->ri_flg = RI_CENTER;
   2206 	if (ri->ri_depth == 32) {
   2207 		ri->ri_flg |= RI_ENABLE_ALPHA;
   2208 	}
   2209 	if (ri->ri_depth == 8) {
   2210 		ri->ri_flg |= RI_ENABLE_ALPHA | RI_8BIT_IS_RGB;
   2211 	}
   2212 	ri->ri_bits = (void *)dp->rd_fbptr;
   2213 
   2214 #ifdef VCONS_DRAW_INTR
   2215 	scr->scr_flags |= VCONS_DONT_READ;
   2216 #endif
   2217 
   2218 	/* this is rgb in "big-endian order..." */
   2219 	ri->ri_rnum = 8;
   2220 	ri->ri_gnum = 8;
   2221 	ri->ri_bnum = 8;
   2222 	ri->ri_rpos = 16;
   2223 	ri->ri_gpos = 8;
   2224 	ri->ri_bpos = 0;
   2225 
   2226 	if (existing) {
   2227 		ri->ri_flg |= RI_CLEAR;
   2228 
   2229 		/* start a modeswitch now */
   2230 		radeonfb_modeswitch(dp);
   2231 	}
   2232 
   2233 	/*
   2234 	 * XXX: font selection should be based on properties, with some
   2235 	 * normal/reasonable default.
   2236 	 */
   2237 
   2238 	/* initialize and look for an initial font */
   2239 	rasops_init(ri, 0, 0);
   2240 	ri->ri_caps = WSSCREEN_WSCOLORS;
   2241 
   2242 	rasops_reconfig(ri, dp->rd_virty / ri->ri_font->fontheight,
   2243 		    dp->rd_virtx / ri->ri_font->fontwidth);
   2244 
   2245 	/* enable acceleration */
   2246 	dp->rd_putchar = ri->ri_ops.putchar;
   2247 	ri->ri_ops.copyrows = radeonfb_copyrows;
   2248 	ri->ri_ops.copycols = radeonfb_copycols;
   2249 	ri->ri_ops.eraserows = radeonfb_eraserows;
   2250 	ri->ri_ops.erasecols = radeonfb_erasecols;
   2251 	/* pick a putchar method based on font and Radeon model */
   2252 	if (ri->ri_font->stride < ri->ri_font->fontwidth) {
   2253 		/* got a bitmap font */
   2254 		if (IS_R300(dp->rd_softc)) {
   2255 			/*
   2256 			 * radeonfb_putchar() doesn't work right on some R3xx
   2257 			 * so we use software drawing here, the wrapper just
   2258 			 *  makes sure the engine is idle before scribbling
   2259 			 * into vram
   2260 			 */
   2261 			ri->ri_ops.putchar = radeonfb_putchar_wrapper;
   2262 		} else {
   2263 			ri->ri_ops.putchar = radeonfb_putchar;
   2264 		}
   2265 	} else {
   2266 		/* got an alpha font */
   2267 		switch(ri->ri_depth) {
   2268 			case 32:
   2269 				ri->ri_ops.putchar = radeonfb_putchar_aa32;
   2270 				break;
   2271 			case 8:
   2272 				ri->ri_ops.putchar = radeonfb_putchar_aa8;
   2273 				break;
   2274 			default:
   2275 				/* XXX this should never happen */
   2276 				panic("%s: depth is not 8 or 32 but we got an alpha font?!",
   2277 				    __func__);
   2278 		}
   2279 	}
   2280 	ri->ri_ops.cursor = radeonfb_cursor;
   2281 }
   2282 
   2283 void
   2284 radeonfb_set_fbloc(struct radeonfb_softc *sc)
   2285 {
   2286 	uint32_t	gen, ext, gen2 = 0;
   2287 	uint32_t	agploc, aperbase, apersize, mcfbloc;
   2288 
   2289 	gen = GET32(sc, RADEON_CRTC_GEN_CNTL);
   2290 	ext = GET32(sc, RADEON_CRTC_EXT_CNTL);
   2291 	agploc = GET32(sc, RADEON_MC_AGP_LOCATION);
   2292 	aperbase = GET32(sc, RADEON_CONFIG_APER_0_BASE);
   2293 	apersize = GET32(sc, RADEON_CONFIG_APER_SIZE);
   2294 
   2295 	PUT32(sc, RADEON_CRTC_GEN_CNTL, gen | RADEON_CRTC_DISP_REQ_EN_B);
   2296 	PUT32(sc, RADEON_CRTC_EXT_CNTL, ext | RADEON_CRTC_DISPLAY_DIS);
   2297 	//PUT32(sc, RADEON_CRTC_GEN_CNTL, gen | RADEON_CRTC_DISPLAY_DIS);
   2298 	//PUT32(sc, RADEON_CRTC_EXT_CNTL, ext | RADEON_CRTC_DISP_REQ_EN_B);
   2299 
   2300 	if (HAS_CRTC2(sc)) {
   2301 		gen2 = GET32(sc, RADEON_CRTC2_GEN_CNTL);
   2302 		PUT32(sc, RADEON_CRTC2_GEN_CNTL,
   2303 		    gen2 | RADEON_CRTC2_DISP_REQ_EN_B);
   2304 	}
   2305 
   2306 	delay(100000);
   2307 
   2308 	mcfbloc = (aperbase >> 16) |
   2309 	    ((aperbase + (apersize - 1)) & 0xffff0000);
   2310 
   2311 	sc->sc_aperbase = (mcfbloc & 0xffff) << 16;
   2312 	sc->sc_memsz = apersize;
   2313 
   2314 	if (((agploc & 0xffff) << 16) !=
   2315 	    ((mcfbloc & 0xffff0000U) + 0x10000)) {
   2316 		agploc = mcfbloc & 0xffff0000U;
   2317 		agploc |= ((agploc + 0x10000) >> 16);
   2318 	}
   2319 
   2320 	PUT32(sc, RADEON_HOST_PATH_CNTL, 0);
   2321 
   2322 	PUT32(sc, RADEON_MC_FB_LOCATION, mcfbloc);
   2323 	PUT32(sc, RADEON_MC_AGP_LOCATION, agploc);
   2324 
   2325 	DPRINTF(("aperbase = %u\n", aperbase));
   2326 	PRINTREG(RADEON_MC_FB_LOCATION);
   2327 	PRINTREG(RADEON_MC_AGP_LOCATION);
   2328 
   2329 	PUT32(sc, RADEON_DISPLAY_BASE_ADDR, sc->sc_aperbase);
   2330 
   2331 	if (HAS_CRTC2(sc))
   2332 		PUT32(sc, RADEON_DISPLAY2_BASE_ADDR, sc->sc_aperbase);
   2333 
   2334 	PUT32(sc, RADEON_OV0_BASE_ADDR, sc->sc_aperbase);
   2335 
   2336 #if 0
   2337 	/* XXX: what is this AGP garbage? :-) */
   2338 	PUT32(sc, RADEON_AGP_CNTL, 0x00100000);
   2339 #endif
   2340 
   2341 	delay(100000);
   2342 
   2343 	PUT32(sc, RADEON_CRTC_GEN_CNTL, gen);
   2344 	PUT32(sc, RADEON_CRTC_EXT_CNTL, ext);
   2345 
   2346 	if (HAS_CRTC2(sc))
   2347 		PUT32(sc, RADEON_CRTC2_GEN_CNTL, gen2);
   2348 }
   2349 
   2350 void
   2351 radeonfb_init_misc(struct radeonfb_softc *sc)
   2352 {
   2353 	PUT32(sc, RADEON_BUS_CNTL,
   2354 	    RADEON_BUS_MASTER_DIS |
   2355 	    RADEON_BUS_PREFETCH_MODE_ACT |
   2356 	    RADEON_BUS_PCI_READ_RETRY_EN |
   2357 	    RADEON_BUS_PCI_WRT_RETRY_EN |
   2358 	    (3 << RADEON_BUS_RETRY_WS_SHIFT) |
   2359 	    RADEON_BUS_MSTR_RD_MULT |
   2360 	    RADEON_BUS_MSTR_RD_LINE |
   2361 	    RADEON_BUS_RD_DISCARD_EN |
   2362 	    RADEON_BUS_MSTR_DISCONNECT_EN |
   2363 	    RADEON_BUS_READ_BURST);
   2364 
   2365 	PUT32(sc, RADEON_BUS_CNTL1, 0xf0);
   2366 	/* PUT32(sc, RADEON_SEPROM_CNTL1, 0x09ff0000); */
   2367 	PUT32(sc, RADEON_FCP_CNTL, RADEON_FCP0_SRC_GND);
   2368 	PUT32(sc, RADEON_RBBM_CNTL,
   2369 	    (3 << RADEON_RB_SETTLE_SHIFT) |
   2370 	    (4 << RADEON_ABORTCLKS_HI_SHIFT) |
   2371 	    (4 << RADEON_ABORTCLKS_CP_SHIFT) |
   2372 	    (4 << RADEON_ABORTCLKS_CFIFO_SHIFT));
   2373 
   2374 	/* XXX: figure out what these mean! */
   2375 	PUT32(sc, RADEON_AGP_CNTL, 0x00100000);
   2376 	PUT32(sc, RADEON_HOST_PATH_CNTL, 0);
   2377 	//PUT32(sc, RADEON_DISP_MISC_CNTL, 0x5bb00400);
   2378 
   2379 	PUT32(sc, RADEON_GEN_INT_CNTL, 0);
   2380 	PUT32(sc, RADEON_GEN_INT_STATUS, GET32(sc, RADEON_GEN_INT_STATUS));
   2381 }
   2382 
   2383 /*
   2384  * This loads a linear color map for true color.
   2385  */
   2386 void
   2387 radeonfb_init_palette(struct radeonfb_softc *sc, int crtc)
   2388 {
   2389 	int		i;
   2390 	uint32_t	vclk;
   2391 
   2392 #define	DAC_WIDTH ((1 << 10) - 1)
   2393 #define	CLUT_WIDTH ((1 << 8) - 1)
   2394 #define	CLUT_COLOR(i)      ((i * DAC_WIDTH * 2 / CLUT_WIDTH + 1) / 2)
   2395 
   2396 	vclk = GETPLL(sc, RADEON_VCLK_ECP_CNTL);
   2397 	PUTPLL(sc, RADEON_VCLK_ECP_CNTL, vclk & ~RADEON_PIXCLK_DAC_ALWAYS_ONb);
   2398 
   2399 	if (crtc)
   2400 		SET32(sc, RADEON_DAC_CNTL2, RADEON_DAC2_PALETTE_ACC_CTL);
   2401 	else
   2402 		CLR32(sc, RADEON_DAC_CNTL2, RADEON_DAC2_PALETTE_ACC_CTL);
   2403 
   2404 	PUT32(sc, RADEON_PALETTE_INDEX, 0);
   2405 	if (sc->sc_displays[crtc].rd_bpp == 0)
   2406 		sc->sc_displays[crtc].rd_bpp = RADEONFB_DEFAULT_DEPTH;
   2407 
   2408 	if (sc->sc_displays[crtc].rd_bpp == 8) {
   2409 		/* ANSI palette */
   2410 		int j = 0;
   2411 		uint32_t tmp, r, g, b;
   2412 
   2413                 for (i = 0; i <= CLUT_WIDTH; ++i) {
   2414     			tmp = i & 0xe0;
   2415 			/*
   2416 			 * replicate bits so 0xe0 maps to a red value of 0xff
   2417 			 * in order to make white look actually white
   2418 			 */
   2419 			tmp |= (tmp >> 3) | (tmp >> 6);
   2420 			r = tmp;
   2421 
   2422 			tmp = (i & 0x1c) << 3;
   2423 			tmp |= (tmp >> 3) | (tmp >> 6);
   2424 			g = tmp;
   2425 
   2426 			tmp = (i & 0x03) << 6;
   2427 			tmp |= tmp >> 2;
   2428 			tmp |= tmp >> 4;
   2429 			b = tmp;
   2430             	PUT32(sc, RADEON_PALETTE_30_DATA,
   2431 				(r << 22) |
   2432 				(g << 12) |
   2433 				(b << 2));
   2434 			j += 3;
   2435 		}
   2436 	} else {
   2437 		/* linear ramp */
   2438 		for (i = 0; i <= CLUT_WIDTH; ++i) {
   2439 			PUT32(sc, RADEON_PALETTE_30_DATA,
   2440 			    (CLUT_COLOR(i) << 10) |
   2441 			    (CLUT_COLOR(i) << 20) |
   2442 			    (CLUT_COLOR(i)));
   2443 		}
   2444 	}
   2445 
   2446 	CLR32(sc, RADEON_DAC_CNTL2, RADEON_DAC2_PALETTE_ACC_CTL);
   2447 	PRINTREG(RADEON_DAC_CNTL2);
   2448 
   2449 	PUTPLL(sc, RADEON_VCLK_ECP_CNTL, vclk);
   2450 }
   2451 
   2452 /*
   2453  * Bugs in some R300 hardware requires this when accessing CLOCK_CNTL_INDEX.
   2454  */
   2455 void
   2456 radeonfb_r300cg_workaround(struct radeonfb_softc *sc)
   2457 {
   2458 	uint32_t	tmp, save;
   2459 
   2460 	save = GET32(sc, RADEON_CLOCK_CNTL_INDEX);
   2461 	tmp = save & ~(0x3f | RADEON_PLL_WR_EN);
   2462 	PUT32(sc, RADEON_CLOCK_CNTL_INDEX, tmp);
   2463 	tmp = GET32(sc, RADEON_CLOCK_CNTL_DATA);
   2464 	PUT32(sc, RADEON_CLOCK_CNTL_INDEX, save);
   2465 }
   2466 
   2467 /*
   2468  * Acceleration entry points.
   2469  */
   2470 
   2471 /* this one draws characters using bitmap fonts */
   2472 static void
   2473 radeonfb_putchar(void *cookie, int row, int col, u_int c, long attr)
   2474 {
   2475 	struct rasops_info	*ri = cookie;
   2476 	struct vcons_screen	*scr = ri->ri_hw;
   2477 	struct radeonfb_display	*dp = scr->scr_cookie;
   2478 	struct radeonfb_softc	*sc = dp->rd_softc;
   2479 	struct wsdisplay_font	*font = PICK_FONT(ri, c);
   2480 	uint32_t		w, h;
   2481 	int			xd, yd, offset, i;
   2482 	uint32_t		bg, fg, gmc;
   2483 	uint32_t		reg;
   2484 	uint8_t			*data8;
   2485 	uint16_t		*data16;
   2486 	void			*data;
   2487 
   2488 	if (dp->rd_wsmode != WSDISPLAYIO_MODE_EMUL)
   2489 		return;
   2490 
   2491 	if (!CHAR_IN_FONT(c, font))
   2492 		return;
   2493 
   2494 	w = font->fontwidth;
   2495 	h = font->fontheight;
   2496 
   2497 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
   2498 	fg = ri->ri_devcmap[(attr >> 24) & 0xf];
   2499 
   2500 	xd = ri->ri_xorigin + col * w;
   2501 	yd = ri->ri_yorigin + row * h;
   2502 
   2503 	if (c == 0x20) {
   2504 		radeonfb_rectfill(dp, xd, yd, w, h, bg);
   2505 		return;
   2506 	}
   2507 	data = WSFONT_GLYPH(c, font);
   2508 
   2509 	gmc = dp->rd_format << RADEON_GMC_DST_DATATYPE_SHIFT;
   2510 
   2511 	radeonfb_wait_fifo(sc, 9);
   2512 
   2513 	PUT32(sc, RADEON_DP_GUI_MASTER_CNTL,
   2514 	    RADEON_GMC_BRUSH_NONE |
   2515 	    RADEON_GMC_SRC_DATATYPE_MONO_FG_BG |
   2516 	    RADEON_GMC_DST_CLIPPING |
   2517 	    RADEON_ROP3_S |
   2518 	    RADEON_DP_SRC_SOURCE_HOST_DATA |
   2519 	    RADEON_GMC_CLR_CMP_CNTL_DIS |
   2520 	    RADEON_GMC_WR_MSK_DIS |
   2521 	    gmc);
   2522 
   2523 	PUT32(sc, RADEON_SC_LEFT, xd);
   2524 	PUT32(sc, RADEON_SC_RIGHT, xd + w);
   2525 	PUT32(sc, RADEON_DP_SRC_FRGD_CLR, fg);
   2526 	PUT32(sc, RADEON_DP_SRC_BKGD_CLR, bg);
   2527 	PUT32(sc, RADEON_DP_CNTL,
   2528 	    RADEON_DST_X_LEFT_TO_RIGHT |
   2529 	    RADEON_DST_Y_TOP_TO_BOTTOM);
   2530 
   2531 	PUT32(sc, RADEON_SRC_X_Y, 0);
   2532 	offset = 32 - (font->stride << 3);
   2533 	PUT32(sc, RADEON_DST_X_Y, ((xd - offset) << 16) | yd);
   2534 	PUT32(sc, RADEON_DST_WIDTH_HEIGHT, (32 << 16) | h);
   2535 
   2536 	radeonfb_wait_fifo(sc, h);
   2537 	switch (font->stride) {
   2538 		case 1: {
   2539 			data8 = data;
   2540 			for (i = 0; i < h; i++) {
   2541 				reg = *data8;
   2542 				bus_space_write_stream_4(sc->sc_regt,
   2543 				    sc->sc_regh, RADEON_HOST_DATA0, reg);
   2544 				data8++;
   2545 			}
   2546 			break;
   2547 		}
   2548 		case 2: {
   2549 			data16 = data;
   2550 			for (i = 0; i < h; i++) {
   2551 				reg = *data16;
   2552 				bus_space_write_stream_4(sc->sc_regt,
   2553 				    sc->sc_regh, RADEON_HOST_DATA0, reg);
   2554 				data16++;
   2555 			}
   2556 			break;
   2557 		}
   2558 	}
   2559 }
   2560 
   2561 /* ... while this one is for anti-aliased ones */
   2562 static void
   2563 radeonfb_putchar_aa32(void *cookie, int row, int col, u_int c, long attr)
   2564 {
   2565 	struct rasops_info	*ri = cookie;
   2566 	struct vcons_screen	*scr = ri->ri_hw;
   2567 	struct radeonfb_display	*dp = scr->scr_cookie;
   2568 	struct radeonfb_softc	*sc = dp->rd_softc;
   2569 	struct wsdisplay_font	*font = PICK_FONT(ri, c);
   2570 	uint32_t		bg, fg, gmc;
   2571 	uint8_t			*data;
   2572 	int			w, h, xd, yd;
   2573 	int 			i, r, g, b, aval;
   2574 	int 			rf, gf, bf, rb, gb, bb;
   2575 	uint32_t 		pixel;
   2576 	int rv;
   2577 
   2578 	if (dp->rd_wsmode != WSDISPLAYIO_MODE_EMUL)
   2579 		return;
   2580 
   2581 	if (!CHAR_IN_FONT(c, font))
   2582 		return;
   2583 
   2584 	w = font->fontwidth;
   2585 	h = font->fontheight;
   2586 
   2587 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
   2588 	fg = ri->ri_devcmap[(attr >> 24) & 0xf];
   2589 
   2590 	xd = ri->ri_xorigin + col * w;
   2591 	yd = ri->ri_yorigin + row * h;
   2592 
   2593 	if (c == 0x20) {
   2594 		radeonfb_rectfill(dp, xd, yd, w, h, bg);
   2595 		return;
   2596 	}
   2597 	rv = glyphcache_try(&dp->rd_gc, c, xd, yd, attr);
   2598 	if (rv == GC_OK)
   2599 		return;
   2600 
   2601 	data = WSFONT_GLYPH(c, font);
   2602 
   2603 	gmc = dp->rd_format << RADEON_GMC_DST_DATATYPE_SHIFT;
   2604 
   2605 	radeonfb_wait_fifo(sc, 5);
   2606 
   2607 	PUT32(sc, RADEON_DP_GUI_MASTER_CNTL,
   2608 	    RADEON_GMC_BRUSH_NONE |
   2609 	    RADEON_GMC_SRC_DATATYPE_COLOR |
   2610 	    RADEON_ROP3_S |
   2611 	    RADEON_DP_SRC_SOURCE_HOST_DATA |
   2612 	    RADEON_GMC_CLR_CMP_CNTL_DIS |
   2613 	    RADEON_GMC_WR_MSK_DIS |
   2614 	    gmc);
   2615 
   2616 	PUT32(sc, RADEON_DP_CNTL,
   2617 	    RADEON_DST_X_LEFT_TO_RIGHT |
   2618 	    RADEON_DST_Y_TOP_TO_BOTTOM);
   2619 
   2620 	PUT32(sc, RADEON_SRC_X_Y, 0);
   2621 	PUT32(sc, RADEON_DST_X_Y, (xd << 16) | yd);
   2622 	PUT32(sc, RADEON_DST_WIDTH_HEIGHT, (w << 16) | h);
   2623 
   2624 	rf = (fg >> 16) & 0xff;
   2625 	rb = (bg >> 16) & 0xff;
   2626 	gf = (fg >> 8) & 0xff;
   2627 	gb = (bg >> 8) & 0xff;
   2628 	bf =  fg & 0xff;
   2629 	bb =  bg & 0xff;
   2630 
   2631 	/*
   2632 	 * I doubt we can upload data faster than even the slowest Radeon
   2633 	 * could process them, especially when doing the alpha blending stuff
   2634 	 * along the way, so just make sure there's some room in the FIFO and
   2635 	 * then hammer away
   2636 	 * As it turns out we can, so make periodic stops to let the FIFO
   2637 	 * drain.
   2638 	 */
   2639 	radeonfb_wait_fifo(sc, 20);
   2640 	for (i = 0; i < ri->ri_fontscale; i++) {
   2641 		aval = *data;
   2642 		data++;
   2643 		if (aval == 0) {
   2644 			pixel = bg;
   2645 		} else if (aval == 255) {
   2646 			pixel = fg;
   2647 		} else {
   2648 			r = aval * rf + (255 - aval) * rb;
   2649 			g = aval * gf + (255 - aval) * gb;
   2650 			b = aval * bf + (255 - aval) * bb;
   2651 			pixel = (r & 0xff00) << 8 |
   2652 			        (g & 0xff00) |
   2653 			        (b & 0xff00) >> 8;
   2654 		}
   2655 		if (i & 16)
   2656 			radeonfb_wait_fifo(sc, 20);
   2657 		PUT32(sc, RADEON_HOST_DATA0, pixel);
   2658 	}
   2659 	if (rv == GC_ADD)
   2660 		glyphcache_add(&dp->rd_gc, c, xd, yd);
   2661 }
   2662 
   2663 static void
   2664 radeonfb_putchar_aa8(void *cookie, int row, int col, u_int c, long attr)
   2665 {
   2666 	struct rasops_info	*ri = cookie;
   2667 	struct vcons_screen	*scr = ri->ri_hw;
   2668 	struct radeonfb_display	*dp = scr->scr_cookie;
   2669 	struct radeonfb_softc	*sc = dp->rd_softc;
   2670 	struct wsdisplay_font	*font = PICK_FONT(ri, c);
   2671 	uint32_t bg, latch = 0, bg8, fg8, pixel, gmc;
   2672 	int i, x, y, wi, he, r, g, b, aval;
   2673 	int r1, g1, b1, r0, g0, b0, fgo, bgo;
   2674 	uint8_t *data8;
   2675 	int rv, cnt;
   2676 
   2677 	if (dp->rd_wsmode != WSDISPLAYIO_MODE_EMUL)
   2678 		return;
   2679 
   2680 	if (!CHAR_IN_FONT(c, font))
   2681 		return;
   2682 
   2683 	wi = font->fontwidth;
   2684 	he = font->fontheight;
   2685 
   2686 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
   2687 
   2688 	x = ri->ri_xorigin + col * wi;
   2689 	y = ri->ri_yorigin + row * he;
   2690 
   2691 	if (c == 0x20) {
   2692 		radeonfb_rectfill(dp, x, y, wi, he, bg);
   2693 		return;
   2694 	}
   2695 	rv = glyphcache_try(&dp->rd_gc, c, x, y, attr);
   2696 	if (rv == GC_OK)
   2697 		return;
   2698 
   2699 	data8 = WSFONT_GLYPH(c, font);
   2700 
   2701 	gmc = dp->rd_format << RADEON_GMC_DST_DATATYPE_SHIFT;
   2702 
   2703 	radeonfb_wait_fifo(sc, 5);
   2704 
   2705 	PUT32(sc, RADEON_DP_GUI_MASTER_CNTL,
   2706 	    RADEON_GMC_BRUSH_NONE |
   2707 	    RADEON_GMC_SRC_DATATYPE_COLOR |
   2708 	    RADEON_ROP3_S |
   2709 	    RADEON_DP_SRC_SOURCE_HOST_DATA |
   2710 	    RADEON_GMC_CLR_CMP_CNTL_DIS |
   2711 	    RADEON_GMC_WR_MSK_DIS |
   2712 	    gmc);
   2713 
   2714 	PUT32(sc, RADEON_DP_CNTL,
   2715 	    RADEON_DST_X_LEFT_TO_RIGHT |
   2716 	    RADEON_DST_Y_TOP_TO_BOTTOM);
   2717 
   2718 	PUT32(sc, RADEON_SRC_X_Y, 0);
   2719 	PUT32(sc, RADEON_DST_X_Y, (x << 16) | y);
   2720 	PUT32(sc, RADEON_DST_WIDTH_HEIGHT, (wi << 16) | he);
   2721 
   2722 	/*
   2723 	 * we need the RGB colours here, so get offsets into rasops_cmap
   2724 	 */
   2725 	fgo = ((attr >> 24) & 0xf) * 3;
   2726 	bgo = ((attr >> 16) & 0xf) * 3;
   2727 
   2728 	r0 = rasops_cmap[bgo];
   2729 	r1 = rasops_cmap[fgo];
   2730 	g0 = rasops_cmap[bgo + 1];
   2731 	g1 = rasops_cmap[fgo + 1];
   2732 	b0 = rasops_cmap[bgo + 2];
   2733 	b1 = rasops_cmap[fgo + 2];
   2734 #define R3G3B2(r, g, b) ((r & 0xe0) | ((g >> 3) & 0x1c) | (b >> 6))
   2735 	bg8 = R3G3B2(r0, g0, b0);
   2736 	fg8 = R3G3B2(r1, g1, b1);
   2737 
   2738 	radeonfb_wait_fifo(sc, 20);
   2739 	cnt = 0;
   2740 	for (i = 0; i < ri->ri_fontscale; i++) {
   2741 		aval = *data8;
   2742 		if (aval == 0) {
   2743 			pixel = bg8;
   2744 		} else if (aval == 255) {
   2745 			pixel = fg8;
   2746 		} else {
   2747 			r = aval * r1 + (255 - aval) * r0;
   2748 			g = aval * g1 + (255 - aval) * g0;
   2749 			b = aval * b1 + (255 - aval) * b0;
   2750 			pixel = ((r & 0xe000) >> 8) |
   2751 				((g & 0xe000) >> 11) |
   2752 				((b & 0xc000) >> 14);
   2753 		}
   2754 		latch = (latch << 8) | pixel;
   2755 		/* write in 32bit chunks */
   2756 		if ((i & 3) == 3) {
   2757 			PUT32S(sc, RADEON_HOST_DATA0, latch);
   2758 			/*
   2759 			 * not strictly necessary, old data should be shifted
   2760 			 * out
   2761 			 */
   2762 			latch = 0;
   2763 			cnt++;
   2764 			if (cnt > 16) {
   2765 				cnt = 0;
   2766 				radeonfb_wait_fifo(sc, 20);
   2767 			}
   2768 		}
   2769 		data8++;
   2770 	}
   2771 	/* if we have pixels left in latch write them out */
   2772 	if ((i & 3) != 0) {
   2773 		latch = latch << ((4 - (i & 3)) << 3);
   2774 		PUT32(sc, RADEON_HOST_DATA0, latch);
   2775 	}
   2776 
   2777 	if (rv == GC_ADD)
   2778 		glyphcache_add(&dp->rd_gc, c, x, y);
   2779 }
   2780 
   2781 /*
   2782  * wrapper for software character drawing
   2783  * just sync the engine and call rasops*_putchar()
   2784  */
   2785 
   2786 static void
   2787 radeonfb_putchar_wrapper(void *cookie, int row, int col, u_int c, long attr)
   2788 {
   2789 	struct rasops_info	*ri = cookie;
   2790 	struct vcons_screen	*scr = ri->ri_hw;
   2791 	struct radeonfb_display	*dp = scr->scr_cookie;
   2792 
   2793 	radeonfb_engine_idle(dp->rd_softc);
   2794 	dp->rd_putchar(ri, row, col, c, attr);
   2795 }
   2796 
   2797 static void
   2798 radeonfb_eraserows(void *cookie, int row, int nrows, long fillattr)
   2799 {
   2800 	struct rasops_info	*ri = cookie;
   2801 	struct vcons_screen	*scr = ri->ri_hw;
   2802 	struct radeonfb_display	*dp = scr->scr_cookie;
   2803 	uint32_t		x, y, w, h, fg, bg, ul;
   2804 
   2805 	/* XXX: check for full emulation mode? */
   2806 	if (dp->rd_wsmode == WSDISPLAYIO_MODE_EMUL) {
   2807 		x = ri->ri_xorigin;
   2808 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   2809 		w = ri->ri_emuwidth;
   2810 		h = ri->ri_font->fontheight * nrows;
   2811 
   2812 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
   2813 		radeonfb_rectfill(dp, x, y, w, h, ri->ri_devcmap[bg & 0xf]);
   2814 	}
   2815 }
   2816 
   2817 static void
   2818 radeonfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
   2819 {
   2820 	struct rasops_info	*ri = cookie;
   2821 	struct vcons_screen	*scr = ri->ri_hw;
   2822 	struct radeonfb_display	*dp = scr->scr_cookie;
   2823 	uint32_t		x, ys, yd, w, h;
   2824 
   2825 	if (dp->rd_wsmode == WSDISPLAYIO_MODE_EMUL) {
   2826 		x = ri->ri_xorigin;
   2827 		ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
   2828 		yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
   2829 		w = ri->ri_emuwidth;
   2830 		h = ri->ri_font->fontheight * nrows;
   2831 		radeonfb_bitblt(dp, x, ys, x, yd, w, h,
   2832 		    RADEON_ROP3_S);
   2833 	}
   2834 }
   2835 
   2836 static void
   2837 radeonfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
   2838 {
   2839 	struct rasops_info	*ri = cookie;
   2840 	struct vcons_screen	*scr = ri->ri_hw;
   2841 	struct radeonfb_display	*dp = scr->scr_cookie;
   2842 	uint32_t		xs, xd, y, w, h;
   2843 
   2844 	if (dp->rd_wsmode == WSDISPLAYIO_MODE_EMUL) {
   2845 		xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
   2846 		xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
   2847 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   2848 		w = ri->ri_font->fontwidth * ncols;
   2849 		h = ri->ri_font->fontheight;
   2850 		radeonfb_bitblt(dp, xs, y, xd, y, w, h,
   2851 		    RADEON_ROP3_S);
   2852 	}
   2853 }
   2854 
   2855 static void
   2856 radeonfb_erasecols(void *cookie, int row, int startcol, int ncols,
   2857     long fillattr)
   2858 {
   2859 	struct rasops_info	*ri = cookie;
   2860 	struct vcons_screen	*scr = ri->ri_hw;
   2861 	struct radeonfb_display	*dp = scr->scr_cookie;
   2862 	uint32_t		x, y, w, h, fg, bg, ul;
   2863 
   2864 	if (dp->rd_wsmode == WSDISPLAYIO_MODE_EMUL) {
   2865 		x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
   2866 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   2867 		w = ri->ri_font->fontwidth * ncols;
   2868 		h = ri->ri_font->fontheight;
   2869 
   2870 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
   2871 		radeonfb_rectfill(dp, x, y, w, h, ri->ri_devcmap[bg & 0xf]);
   2872 	}
   2873 }
   2874 
   2875 static void
   2876 radeonfb_cursor(void *cookie, int on, int row, int col)
   2877 {
   2878 	struct rasops_info *ri = cookie;
   2879 	struct vcons_screen *scr = ri->ri_hw;
   2880 	struct radeonfb_display	*dp = scr->scr_cookie;
   2881 	int x, y, wi, he;
   2882 
   2883 	wi = ri->ri_font->fontwidth;
   2884 	he = ri->ri_font->fontheight;
   2885 
   2886 	if (dp->rd_wsmode == WSDISPLAYIO_MODE_EMUL) {
   2887 		x = ri->ri_ccol * wi + ri->ri_xorigin;
   2888 		y = ri->ri_crow * he + ri->ri_yorigin;
   2889 		/* first turn off the old cursor */
   2890 		if (ri->ri_flg & RI_CURSOR) {
   2891 			radeonfb_bitblt(dp, x, y, x, y, wi, he,
   2892 			    RADEON_ROP3_Dn);
   2893 			ri->ri_flg &= ~RI_CURSOR;
   2894 		}
   2895 		ri->ri_crow = row;
   2896 		ri->ri_ccol = col;
   2897 		/* then (possibly) turn on the new one */
   2898 		if (on) {
   2899 			x = ri->ri_ccol * wi + ri->ri_xorigin;
   2900 			y = ri->ri_crow * he + ri->ri_yorigin;
   2901 			radeonfb_bitblt(dp, x, y, x, y, wi, he,
   2902 			    RADEON_ROP3_Dn);
   2903 			ri->ri_flg |= RI_CURSOR;
   2904 		}
   2905 	} else {
   2906 		scr->scr_ri.ri_crow = row;
   2907 		scr->scr_ri.ri_ccol = col;
   2908 		scr->scr_ri.ri_flg &= ~RI_CURSOR;
   2909 	}
   2910 }
   2911 
   2912 /*
   2913  * Underlying acceleration support.
   2914  */
   2915 
   2916 static void
   2917 radeonfb_rectfill(struct radeonfb_display *dp, int dstx, int dsty,
   2918     int width, int height, uint32_t color)
   2919 {
   2920 	struct radeonfb_softc	*sc = dp->rd_softc;
   2921 	uint32_t		gmc;
   2922 
   2923 	gmc = dp->rd_format << RADEON_GMC_DST_DATATYPE_SHIFT;
   2924 
   2925 	radeonfb_wait_fifo(sc, 6);
   2926 
   2927 	PUT32(sc, RADEON_DP_GUI_MASTER_CNTL,
   2928 	    RADEON_GMC_BRUSH_SOLID_COLOR |
   2929 	    RADEON_GMC_SRC_DATATYPE_COLOR |
   2930 	    RADEON_GMC_CLR_CMP_CNTL_DIS |
   2931 	    RADEON_ROP3_P | gmc);
   2932 
   2933 	PUT32(sc, RADEON_DP_BRUSH_FRGD_CLR, color);
   2934 	PUT32(sc, RADEON_DP_WRITE_MASK, 0xffffffff);
   2935 	PUT32(sc, RADEON_DP_CNTL,
   2936 	    RADEON_DST_X_LEFT_TO_RIGHT |
   2937 	    RADEON_DST_Y_TOP_TO_BOTTOM);
   2938 	PUT32(sc, RADEON_DST_Y_X, (dsty << 16) | dstx);
   2939 	PUT32(sc, RADEON_DST_WIDTH_HEIGHT, (width << 16) | (height));
   2940 
   2941 }
   2942 
   2943 static void
   2944 radeonfb_bitblt(void *cookie, int srcx, int srcy,
   2945     int dstx, int dsty, int width, int height, int rop)
   2946 {
   2947 	struct radeonfb_display *dp = cookie;
   2948 	struct radeonfb_softc	*sc = dp->rd_softc;
   2949 	uint32_t		gmc;
   2950 	uint32_t		dir;
   2951 
   2952 	if (dsty < srcy) {
   2953 		dir = RADEON_DST_Y_TOP_TO_BOTTOM;
   2954 	} else {
   2955 		srcy += height - 1;
   2956 		dsty += height - 1;
   2957 		dir = 0;
   2958 	}
   2959 	if (dstx < srcx) {
   2960 		dir |= RADEON_DST_X_LEFT_TO_RIGHT;
   2961 	} else {
   2962 		srcx += width - 1;
   2963 		dstx += width - 1;
   2964 	}
   2965 
   2966 	gmc = dp->rd_format << RADEON_GMC_DST_DATATYPE_SHIFT;
   2967 
   2968 	radeonfb_wait_fifo(sc, 6);
   2969 
   2970 	PUT32(sc, RADEON_DP_GUI_MASTER_CNTL,
   2971 	    RADEON_GMC_BRUSH_SOLID_COLOR |
   2972 	    RADEON_GMC_SRC_DATATYPE_COLOR |
   2973 	    RADEON_GMC_CLR_CMP_CNTL_DIS |
   2974 	    RADEON_DP_SRC_SOURCE_MEMORY |
   2975 	    rop | gmc);
   2976 
   2977 	PUT32(sc, RADEON_DP_WRITE_MASK, 0xffffffff);
   2978 	PUT32(sc, RADEON_DP_CNTL, dir);
   2979 	PUT32(sc, RADEON_SRC_Y_X, (srcy << 16) | srcx);
   2980 	PUT32(sc, RADEON_DST_Y_X, (dsty << 16) | dstx);
   2981 	PUT32(sc, RADEON_DST_WIDTH_HEIGHT, (width << 16) | (height));
   2982 }
   2983 
   2984 static void
   2985 radeonfb_engine_idle(struct radeonfb_softc *sc)
   2986 {
   2987 
   2988 	radeonfb_wait_fifo(sc, 64);
   2989 	while ((GET32(sc, RADEON_RBBM_STATUS) &
   2990 			RADEON_RBBM_ACTIVE) != 0);
   2991 	radeonfb_engine_flush(sc);
   2992 }
   2993 
   2994 static inline void
   2995 radeonfb_wait_fifo(struct radeonfb_softc *sc, int n)
   2996 {
   2997 	int	i;
   2998 
   2999 	for (i = RADEON_TIMEOUT; i; i--) {
   3000 		if ((GET32(sc, RADEON_RBBM_STATUS) &
   3001 			RADEON_RBBM_FIFOCNT_MASK) >= n)
   3002 			return;
   3003 	}
   3004 #ifdef	DIAGNOSTIC
   3005 	if (!i)
   3006 		printf("%s: timed out waiting for fifo (%x)\n",
   3007 		    XNAME(sc), GET32(sc, RADEON_RBBM_STATUS));
   3008 #endif
   3009 }
   3010 
   3011 static void
   3012 radeonfb_engine_flush(struct radeonfb_softc *sc)
   3013 {
   3014 	int	i = 0;
   3015 
   3016 	if (IS_R300(sc)) {
   3017 		SET32(sc, R300_DSTCACHE_CTLSTAT, R300_RB2D_DC_FLUSH_ALL);
   3018 		while (GET32(sc, R300_DSTCACHE_CTLSTAT) & R300_RB2D_DC_BUSY) {
   3019 			i++;
   3020 		}
   3021 	} else {
   3022 		SET32(sc, RADEON_RB2D_DSTCACHE_CTLSTAT,
   3023 		    RADEON_RB2D_DC_FLUSH_ALL);
   3024 		while (GET32(sc, RADEON_RB2D_DSTCACHE_CTLSTAT) &
   3025 			RADEON_RB2D_DC_BUSY) {
   3026 			i++;
   3027 		}
   3028 	}
   3029 #ifdef DIAGNOSTIC
   3030 	if (i > RADEON_TIMEOUT)
   3031 		printf("%s: engine flush timed out!\n", XNAME(sc));
   3032 #endif
   3033 }
   3034 
   3035 static inline void
   3036 radeonfb_unclip(struct radeonfb_softc *sc)
   3037 {
   3038 
   3039 	radeonfb_wait_fifo(sc, 2);
   3040 	PUT32(sc, RADEON_SC_TOP_LEFT, 0);
   3041 	PUT32(sc, RADEON_SC_BOTTOM_RIGHT, 0x1fff1fff);
   3042 }
   3043 
   3044 static void
   3045 radeonfb_engine_init(struct radeonfb_display *dp)
   3046 {
   3047 	struct radeonfb_softc	*sc = dp->rd_softc;
   3048 	uint32_t		pitch;
   3049 	volatile uint32_t	junk;
   3050 
   3051 	/* no 3D */
   3052 	PUT32(sc, RADEON_RB3D_CNTL, 0);
   3053 
   3054 	radeonfb_engine_reset(sc);
   3055 	pitch = ((dp->rd_virtx * (dp->rd_bpp / 8) + 0x3f)) >> 6;
   3056 
   3057 	radeonfb_wait_fifo(sc, 1);
   3058 	if (!IS_R300(sc))
   3059 		PUT32(sc, RADEON_RB2D_DSTCACHE_MODE, 0);
   3060 
   3061 	radeonfb_wait_fifo(sc, 3);
   3062 	PUT32(sc, RADEON_DEFAULT_PITCH_OFFSET,
   3063 	    (pitch << 22) | (sc->sc_aperbase >> 10));
   3064 
   3065 
   3066 	PUT32(sc, RADEON_DST_PITCH_OFFSET,
   3067 	    (pitch << 22) | (sc->sc_aperbase >> 10));
   3068 	PUT32(sc, RADEON_SRC_PITCH_OFFSET,
   3069 	    (pitch << 22) | (sc->sc_aperbase >> 10));
   3070 
   3071 	radeonfb_wait_fifo(sc, 1);
   3072 #if _BYTE_ORDER == _BIG_ENDIAN
   3073 	SET32(sc, RADEON_DP_DATATYPE, RADEON_HOST_BIG_ENDIAN_EN);
   3074 #else
   3075 	CLR32(sc, RADEON_DP_DATATYPE, RADEON_HOST_BIG_ENDIAN_EN);
   3076 #endif
   3077 	junk = GET32(sc, RADEON_DP_DATATYPE);
   3078 
   3079 	/* default scissors -- no clipping */
   3080 	radeonfb_wait_fifo(sc, 1);
   3081 	PUT32(sc, RADEON_DEFAULT_SC_BOTTOM_RIGHT,
   3082 	    RADEON_DEFAULT_SC_RIGHT_MAX | RADEON_DEFAULT_SC_BOTTOM_MAX);
   3083 
   3084 	radeonfb_wait_fifo(sc, 1);
   3085 	PUT32(sc, RADEON_DP_GUI_MASTER_CNTL,
   3086 	    (dp->rd_format << RADEON_GMC_DST_DATATYPE_SHIFT) |
   3087 	    RADEON_GMC_CLR_CMP_CNTL_DIS |
   3088 	    RADEON_GMC_BRUSH_SOLID_COLOR |
   3089 	    RADEON_GMC_SRC_DATATYPE_COLOR);
   3090 
   3091 	radeonfb_wait_fifo(sc, 10);
   3092 	PUT32(sc, RADEON_DST_LINE_START, 0);
   3093 	PUT32(sc, RADEON_DST_LINE_END, 0);
   3094 	PUT32(sc, RADEON_DP_BRUSH_FRGD_CLR, 0xffffffff);
   3095 	PUT32(sc, RADEON_DP_BRUSH_BKGD_CLR, 0);
   3096 	PUT32(sc, RADEON_DP_SRC_FRGD_CLR, 0xffffffff);
   3097 	PUT32(sc, RADEON_DP_SRC_BKGD_CLR, 0);
   3098 	PUT32(sc, RADEON_DP_WRITE_MASK, 0xffffffff);
   3099 	PUT32(sc, RADEON_SC_TOP_LEFT, 0);
   3100 	PUT32(sc, RADEON_SC_BOTTOM_RIGHT, 0x1fff1fff);
   3101 	PUT32(sc, RADEON_AUX_SC_CNTL, 0);
   3102 	radeonfb_engine_idle(sc);
   3103 }
   3104 
   3105 static void
   3106 radeonfb_engine_reset(struct radeonfb_softc *sc)
   3107 {
   3108 	uint32_t	hpc, rbbm, mclkcntl, clkindex;
   3109 
   3110 	radeonfb_engine_flush(sc);
   3111 
   3112 	clkindex = GET32(sc, RADEON_CLOCK_CNTL_INDEX);
   3113 	if (HAS_R300CG(sc))
   3114 		radeonfb_r300cg_workaround(sc);
   3115 	mclkcntl = GETPLL(sc, RADEON_MCLK_CNTL);
   3116 
   3117 	/*
   3118 	 * According to comments in XFree code, resetting the HDP via
   3119 	 * the RBBM_SOFT_RESET can cause bad behavior on some systems.
   3120 	 * So we use HOST_PATH_CNTL instead.
   3121 	 */
   3122 
   3123 	hpc = GET32(sc, RADEON_HOST_PATH_CNTL);
   3124 	rbbm = GET32(sc, RADEON_RBBM_SOFT_RESET);
   3125 	if (IS_R300(sc)) {
   3126 		PUT32(sc, RADEON_RBBM_SOFT_RESET, rbbm |
   3127 		    RADEON_SOFT_RESET_CP |
   3128 		    RADEON_SOFT_RESET_HI |
   3129 		    RADEON_SOFT_RESET_E2);
   3130 		GET32(sc, RADEON_RBBM_SOFT_RESET);
   3131 		PUT32(sc, RADEON_RBBM_SOFT_RESET, 0);
   3132 		/*
   3133 		 * XXX: this bit is not defined in any ATI docs I have,
   3134 		 * nor in the XFree code, but XFree does it.  Why?
   3135 		 */
   3136 		SET32(sc, RADEON_RB2D_DSTCACHE_MODE, (1<<17));
   3137 	} else {
   3138 		PUT32(sc, RADEON_RBBM_SOFT_RESET, rbbm |
   3139 		    RADEON_SOFT_RESET_CP |
   3140 		    RADEON_SOFT_RESET_SE |
   3141 		    RADEON_SOFT_RESET_RE |
   3142 		    RADEON_SOFT_RESET_PP |
   3143 		    RADEON_SOFT_RESET_E2 |
   3144 		    RADEON_SOFT_RESET_RB);
   3145 		GET32(sc, RADEON_RBBM_SOFT_RESET);
   3146 		PUT32(sc, RADEON_RBBM_SOFT_RESET, rbbm &
   3147 		    ~(RADEON_SOFT_RESET_CP |
   3148 			RADEON_SOFT_RESET_SE |
   3149 			RADEON_SOFT_RESET_RE |
   3150 			RADEON_SOFT_RESET_PP |
   3151 			RADEON_SOFT_RESET_E2 |
   3152 			RADEON_SOFT_RESET_RB));
   3153 		GET32(sc, RADEON_RBBM_SOFT_RESET);
   3154 	}
   3155 
   3156 	PUT32(sc, RADEON_HOST_PATH_CNTL, hpc | RADEON_HDP_SOFT_RESET);
   3157 	GET32(sc, RADEON_HOST_PATH_CNTL);
   3158 	PUT32(sc, RADEON_HOST_PATH_CNTL, hpc);
   3159 
   3160 	if (IS_R300(sc))
   3161 		PUT32(sc, RADEON_RBBM_SOFT_RESET, rbbm);
   3162 
   3163 	PUT32(sc, RADEON_CLOCK_CNTL_INDEX, clkindex);
   3164 	PUTPLL(sc, RADEON_MCLK_CNTL, mclkcntl);
   3165 
   3166 	if (HAS_R300CG(sc))
   3167 		radeonfb_r300cg_workaround(sc);
   3168 }
   3169 
   3170 static int
   3171 radeonfb_set_curpos(struct radeonfb_display *dp, struct wsdisplay_curpos *pos)
   3172 {
   3173 	int		x, y;
   3174 
   3175 	x = pos->x;
   3176 	y = pos->y;
   3177 
   3178 	/*
   3179 	 * This doesn't let a cursor move off the screen.  I'm not
   3180 	 * sure if this will have negative effects for e.g. Xinerama.
   3181 	 * I'd guess Xinerama handles it by changing the cursor shape,
   3182 	 * but that needs verification.
   3183 	 */
   3184 	if (x >= dp->rd_virtx)
   3185 		x = dp->rd_virtx - 1;
   3186 	if (x < 0)
   3187 		x = 0;
   3188 	if (y >= dp->rd_virty)
   3189 		y = dp->rd_virty - 1;
   3190 	if (y < 0)
   3191 		y = 0;
   3192 
   3193 	dp->rd_cursor.rc_pos.x = x;
   3194 	dp->rd_cursor.rc_pos.y = y;
   3195 
   3196 	radeonfb_cursor_position(dp);
   3197 	return 0;
   3198 }
   3199 
   3200 static int
   3201 radeonfb_set_cursor(struct radeonfb_display *dp, struct wsdisplay_cursor *wc)
   3202 {
   3203 	unsigned	flags;
   3204 
   3205 	uint8_t		r[2], g[2], b[2];
   3206 	unsigned	index, count;
   3207 	int		i, err;
   3208 	int		pitch, size;
   3209 	struct radeonfb_cursor	nc;
   3210 
   3211 	flags = wc->which;
   3212 
   3213 	/* copy old values */
   3214 	nc = dp->rd_cursor;
   3215 
   3216 	if (flags & WSDISPLAY_CURSOR_DOCMAP) {
   3217 		index = wc->cmap.index;
   3218 		count = wc->cmap.count;
   3219 
   3220 		if (index >= 2 || (index + count) > 2)
   3221 			return EINVAL;
   3222 
   3223 		err = copyin(wc->cmap.red, &r[index], count);
   3224 		if (err)
   3225 			return err;
   3226 		err = copyin(wc->cmap.green, &g[index], count);
   3227 		if (err)
   3228 			return err;
   3229 		err = copyin(wc->cmap.blue, &b[index], count);
   3230 		if (err)
   3231 			return err;
   3232 
   3233 		for (i = index; i < index + count; i++) {
   3234 			nc.rc_cmap[i] =
   3235 			    (r[i] << 16) + (g[i] << 8) + (b[i] << 0);
   3236 		}
   3237 	}
   3238 
   3239 	if (flags & WSDISPLAY_CURSOR_DOSHAPE) {
   3240 		if ((wc->size.x > RADEON_CURSORMAXX) ||
   3241 		    (wc->size.y > RADEON_CURSORMAXY))
   3242 			return EINVAL;
   3243 
   3244 		/* figure bytes per line */
   3245 		pitch = (wc->size.x + 7) / 8;
   3246 		size = pitch * wc->size.y;
   3247 
   3248 		/* clear the old cursor and mask */
   3249 		memset(nc.rc_image, 0, 512);
   3250 		memset(nc.rc_mask, 0, 512);
   3251 
   3252 		nc.rc_size = wc->size;
   3253 
   3254 		if ((err = copyin(wc->image, nc.rc_image, size)) != 0)
   3255 			return err;
   3256 
   3257 		if ((err = copyin(wc->mask, nc.rc_mask, size)) != 0)
   3258 			return err;
   3259 	}
   3260 
   3261 	if (flags & WSDISPLAY_CURSOR_DOHOT) {
   3262 		nc.rc_hot = wc->hot;
   3263 		if (nc.rc_hot.x >= nc.rc_size.x)
   3264 			nc.rc_hot.x = nc.rc_size.x - 1;
   3265 		if (nc.rc_hot.y >= nc.rc_size.y)
   3266 			nc.rc_hot.y = nc.rc_size.y - 1;
   3267 	}
   3268 
   3269 	if (flags & WSDISPLAY_CURSOR_DOPOS) {
   3270 		nc.rc_pos = wc->pos;
   3271 		if (nc.rc_pos.x >= dp->rd_virtx)
   3272 			nc.rc_pos.x = dp->rd_virtx - 1;
   3273 #if 0
   3274 		if (nc.rc_pos.x < 0)
   3275 			nc.rc_pos.x = 0;
   3276 #endif
   3277 		if (nc.rc_pos.y >= dp->rd_virty)
   3278 			nc.rc_pos.y = dp->rd_virty - 1;
   3279 #if 0
   3280 		if (nc.rc_pos.y < 0)
   3281 			nc.rc_pos.y = 0;
   3282 #endif
   3283 	}
   3284 	if (flags & WSDISPLAY_CURSOR_DOCUR) {
   3285 		nc.rc_visible = wc->enable;
   3286 	}
   3287 
   3288 	dp->rd_cursor = nc;
   3289 	radeonfb_cursor_update(dp, wc->which);
   3290 
   3291 	return 0;
   3292 }
   3293 
   3294 /*
   3295  * Change the cursor shape.  Call this with the cursor locked to avoid
   3296  * flickering/tearing.
   3297  */
   3298 static void
   3299 radeonfb_cursor_shape(struct radeonfb_display *dp)
   3300 {
   3301 	uint8_t	and[512], xor[512];
   3302 	int	i, j, src, dst, pitch;
   3303 	const uint8_t	*msk = dp->rd_cursor.rc_mask;
   3304 	const uint8_t	*img = dp->rd_cursor.rc_image;
   3305 
   3306 	/*
   3307 	 * Radeon cursor data interleaves one line of AND data followed
   3308 	 * by a line of XOR data.  (Each line corresponds to a whole hardware
   3309 	 * pitch - i.e. 64 pixels or 8 bytes.)
   3310 	 *
   3311 	 * The cursor is displayed using the following table:
   3312 	 *
   3313 	 * AND	XOR	Result
   3314 	 * ----------------------
   3315 	 *  0    0	Cursor color 0
   3316 	 *  0	 1	Cursor color 1
   3317 	 *  1	 0	Transparent
   3318 	 *  1	 1	Complement of background
   3319 	 *
   3320 	 * Our masks are therefore different from what we were passed.
   3321 	 * Passed in, I'm assuming the data represents either color 0 or 1,
   3322 	 * and a mask, so the passed in table looks like:
   3323 	 *
   3324 	 * IMG	Mask	Result
   3325 	 * -----------------------
   3326 	 *  0	 0	Transparent
   3327 	 *  0	 1	Cursor color 0
   3328 	 *  1	 0	Transparent
   3329 	 *  1	 1	Cursor color 1
   3330 	 *
   3331 	 * IF mask bit == 1, AND = 0, XOR = color.
   3332 	 * IF mask bit == 0, AND = 1, XOR = 0.
   3333 	 *
   3334 	 * hence:	AND = ~(mask);	XOR = color & ~(mask);
   3335 	 */
   3336 
   3337 	pitch = ((dp->rd_cursor.rc_size.x + 7) / 8);
   3338 
   3339 	/* start by assuming all bits are transparent */
   3340 	memset(and, 0xff, 512);
   3341 	memset(xor, 0x00, 512);
   3342 
   3343 	src = 0;
   3344 	dst = 0;
   3345 	for (i = 0; i < 64; i++) {
   3346 		for (j = 0; j < 64; j += 8) {
   3347 			if ((i < dp->rd_cursor.rc_size.y) &&
   3348 			    (j < dp->rd_cursor.rc_size.x)) {
   3349 
   3350 				/* take care to leave odd bits alone */
   3351 				and[dst] &= ~(msk[src]);
   3352 				xor[dst] = img[src] & msk[src];
   3353 				src++;
   3354 			}
   3355 			dst++;
   3356 		}
   3357 	}
   3358 
   3359 	/* copy the image into place */
   3360 	for (i = 0; i < 64; i++) {
   3361 		memcpy((uint8_t *)dp->rd_curptr + (i * 16),
   3362 		    &and[i * 8], 8);
   3363 		memcpy((uint8_t *)dp->rd_curptr + (i * 16) + 8,
   3364 		    &xor[i * 8], 8);
   3365 	}
   3366 }
   3367 
   3368 static void
   3369 radeonfb_cursor_position(struct radeonfb_display *dp)
   3370 {
   3371 	struct radeonfb_softc	*sc = dp->rd_softc;
   3372 	uint32_t		offset, hvoff, hvpos;	/* registers */
   3373 	uint32_t		coff;			/* cursor offset */
   3374 	int			i, x, y, xoff, yoff, crtcoff;
   3375 
   3376 	/*
   3377 	 * XXX: this also needs to handle pan/scan
   3378 	 */
   3379 	for (i = 0; i < dp->rd_ncrtcs; i++) {
   3380 
   3381 		struct radeonfb_crtc	*rcp = &dp->rd_crtcs[i];
   3382 
   3383 		if (rcp->rc_number) {
   3384 			offset = RADEON_CUR2_OFFSET;
   3385 			hvoff = RADEON_CUR2_HORZ_VERT_OFF;
   3386 			hvpos = RADEON_CUR2_HORZ_VERT_POSN;
   3387 			crtcoff = RADEON_CRTC2_OFFSET;
   3388 		} else {
   3389 			offset = RADEON_CUR_OFFSET;
   3390 			hvoff = RADEON_CUR_HORZ_VERT_OFF;
   3391 			hvpos = RADEON_CUR_HORZ_VERT_POSN;
   3392 			crtcoff = RADEON_CRTC_OFFSET;
   3393 		}
   3394 
   3395 		x = dp->rd_cursor.rc_pos.x;
   3396 		y = dp->rd_cursor.rc_pos.y;
   3397 
   3398 		while (y < rcp->rc_yoffset) {
   3399 			rcp->rc_yoffset -= RADEON_PANINCREMENT;
   3400 		}
   3401 		while (y >= (rcp->rc_yoffset + rcp->rc_videomode.vdisplay)) {
   3402 			rcp->rc_yoffset += RADEON_PANINCREMENT;
   3403 		}
   3404 		while (x < rcp->rc_xoffset) {
   3405 			rcp->rc_xoffset -= RADEON_PANINCREMENT;
   3406 		}
   3407 		while (x >= (rcp->rc_xoffset + rcp->rc_videomode.hdisplay)) {
   3408 			rcp->rc_xoffset += RADEON_PANINCREMENT;
   3409 		}
   3410 
   3411 		/* adjust for the cursor's hotspot */
   3412 		x -= dp->rd_cursor.rc_hot.x;
   3413 		y -= dp->rd_cursor.rc_hot.y;
   3414 		xoff = yoff = 0;
   3415 
   3416 		if (x >= dp->rd_virtx)
   3417 			x = dp->rd_virtx - 1;
   3418 		if (y >= dp->rd_virty)
   3419 			y = dp->rd_virty - 1;
   3420 
   3421 		/* now adjust cursor so it is relative to viewport */
   3422 		x -= rcp->rc_xoffset;
   3423 		y -= rcp->rc_yoffset;
   3424 
   3425 		/*
   3426 		 * no need to check for fall off, because we should
   3427 		 * never move off the screen entirely!
   3428 		 */
   3429 		coff = 0;
   3430 		if (x < 0) {
   3431 			xoff = -x;
   3432 			x = 0;
   3433 		}
   3434 		if (y < 0) {
   3435 			yoff = -y;
   3436 			y = 0;
   3437 			coff = (yoff * 2) * 8;
   3438 		}
   3439 
   3440 		/* pan the display */
   3441 		PUT32(sc, crtcoff, (rcp->rc_yoffset * dp->rd_stride) +
   3442 		    rcp->rc_xoffset);
   3443 
   3444 		PUT32(sc, offset, (dp->rd_curoff + coff) | RADEON_CUR_LOCK);
   3445 		PUT32(sc, hvoff, (xoff << 16) | (yoff) | RADEON_CUR_LOCK);
   3446 		/* NB: this unlocks the cursor */
   3447 		PUT32(sc, hvpos, (x << 16) | y);
   3448 	}
   3449 }
   3450 
   3451 static void
   3452 radeonfb_cursor_visible(struct radeonfb_display *dp)
   3453 {
   3454 	int		i;
   3455 	uint32_t	gencntl, bit;
   3456 
   3457 	for (i = 0; i < dp->rd_ncrtcs; i++) {
   3458 		if (dp->rd_crtcs[i].rc_number) {
   3459 			gencntl = RADEON_CRTC2_GEN_CNTL;
   3460 			bit = RADEON_CRTC2_CUR_EN;
   3461 		} else {
   3462 			gencntl = RADEON_CRTC_GEN_CNTL;
   3463 			bit = RADEON_CRTC_CUR_EN;
   3464 		}
   3465 
   3466 		if (dp->rd_cursor.rc_visible)
   3467 			SET32(dp->rd_softc, gencntl, bit);
   3468 		else
   3469 			CLR32(dp->rd_softc, gencntl, bit);
   3470 	}
   3471 }
   3472 
   3473 static void
   3474 radeonfb_cursor_cmap(struct radeonfb_display *dp)
   3475 {
   3476 	int		i;
   3477 	uint32_t	c0reg, c1reg;
   3478 	struct radeonfb_softc	*sc = dp->rd_softc;
   3479 
   3480 	for (i = 0; i < dp->rd_ncrtcs; i++) {
   3481 		if (dp->rd_crtcs[i].rc_number) {
   3482 			c0reg = RADEON_CUR2_CLR0;
   3483 			c1reg = RADEON_CUR2_CLR1;
   3484 		} else {
   3485 			c0reg = RADEON_CUR_CLR0;
   3486 			c1reg = RADEON_CUR_CLR1;
   3487 		}
   3488 
   3489 		PUT32(sc, c0reg, dp->rd_cursor.rc_cmap[0]);
   3490 		PUT32(sc, c1reg, dp->rd_cursor.rc_cmap[1]);
   3491 	}
   3492 }
   3493 
   3494 static void
   3495 radeonfb_cursor_update(struct radeonfb_display *dp, unsigned which)
   3496 {
   3497 	struct radeonfb_softc	*sc;
   3498 	int		i;
   3499 
   3500 	sc = dp->rd_softc;
   3501 	for (i = 0; i < dp->rd_ncrtcs; i++) {
   3502 		if (dp->rd_crtcs[i].rc_number) {
   3503 			SET32(sc, RADEON_CUR2_OFFSET, RADEON_CUR_LOCK);
   3504 		} else {
   3505 			SET32(sc, RADEON_CUR_OFFSET,RADEON_CUR_LOCK);
   3506 		}
   3507 	}
   3508 
   3509 	if (which & WSDISPLAY_CURSOR_DOCMAP)
   3510 		radeonfb_cursor_cmap(dp);
   3511 
   3512 	if (which & WSDISPLAY_CURSOR_DOSHAPE)
   3513 		radeonfb_cursor_shape(dp);
   3514 
   3515 	if (which & WSDISPLAY_CURSOR_DOCUR)
   3516 		radeonfb_cursor_visible(dp);
   3517 
   3518 	/* this one is unconditional, because it updates other stuff */
   3519 	radeonfb_cursor_position(dp);
   3520 }
   3521 
   3522 static struct videomode *
   3523 radeonfb_best_refresh(struct videomode *m1, struct videomode *m2)
   3524 {
   3525 	int	r1, r2;
   3526 
   3527 	/* otherwise pick the higher refresh rate */
   3528 	r1 = DIVIDE(DIVIDE(m1->dot_clock, m1->htotal), m1->vtotal);
   3529 	r2 = DIVIDE(DIVIDE(m2->dot_clock, m2->htotal), m2->vtotal);
   3530 
   3531 	return (r1 < r2 ? m2 : m1);
   3532 }
   3533 
   3534 static const struct videomode *
   3535 radeonfb_port_mode(struct radeonfb_softc *sc, struct radeonfb_port *rp,
   3536     int x, int y)
   3537 {
   3538 	struct edid_info	*ep = &rp->rp_edid;
   3539 	struct videomode	*vmp = NULL;
   3540 	int			i;
   3541 
   3542 	if (!rp->rp_edid_valid) {
   3543 		/* fallback to safe mode */
   3544 		return radeonfb_modelookup(sc->sc_defaultmode);
   3545 	}
   3546 
   3547 	/* always choose the preferred mode first! */
   3548 	if (ep->edid_preferred_mode) {
   3549 
   3550 		/* XXX: add auto-stretching support for native mode */
   3551 
   3552 		/* this may want panning to occur, btw */
   3553 		if ((ep->edid_preferred_mode->hdisplay <= x) &&
   3554 		    (ep->edid_preferred_mode->vdisplay <= y))
   3555 			return ep->edid_preferred_mode;
   3556 	}
   3557 
   3558 	for (i = 0; i < ep->edid_nmodes; i++) {
   3559 		/*
   3560 		 * We elect to pick a resolution that is too large for
   3561 		 * the monitor than one that is too small.  This means
   3562 		 * that we will prefer to pan rather than to try to
   3563 		 * center a smaller display on a larger screen.  In
   3564 		 * practice, this shouldn't matter because if a
   3565 		 * monitor can support a larger resolution, it can
   3566 		 * probably also support the smaller.  A specific
   3567 		 * exception is fixed format panels, but hopefully
   3568 		 * they are properly dealt with by the "autostretch"
   3569 		 * logic above.
   3570 		 */
   3571 		if ((ep->edid_modes[i].hdisplay > x) ||
   3572 		    (ep->edid_modes[i].vdisplay > y)) {
   3573 			continue;
   3574 		}
   3575 
   3576 		/*
   3577 		 * at this point, the display mode is no larger than
   3578 		 * what we've requested.
   3579 		 */
   3580 		if (vmp == NULL)
   3581 			vmp = &ep->edid_modes[i];
   3582 
   3583 		/* eliminate smaller modes */
   3584 		if ((vmp->hdisplay >= ep->edid_modes[i].hdisplay) ||
   3585 		    (vmp->vdisplay >= ep->edid_modes[i].vdisplay))
   3586 			continue;
   3587 
   3588 		if ((vmp->hdisplay < ep->edid_modes[i].hdisplay) ||
   3589 		    (vmp->vdisplay < ep->edid_modes[i].vdisplay)) {
   3590 			vmp = &ep->edid_modes[i];
   3591 			continue;
   3592 		}
   3593 
   3594 		KASSERT(vmp->hdisplay == ep->edid_modes[i].hdisplay);
   3595 		KASSERT(vmp->vdisplay == ep->edid_modes[i].vdisplay);
   3596 
   3597 		vmp = radeonfb_best_refresh(vmp, &ep->edid_modes[i]);
   3598 	}
   3599 
   3600 	return (vmp ? vmp : radeonfb_modelookup(sc->sc_defaultmode));
   3601 }
   3602 
   3603 static int
   3604 radeonfb_hasres(struct videomode *list, int nlist, int x, int y)
   3605 {
   3606 	int	i;
   3607 
   3608 	for (i = 0; i < nlist; i++) {
   3609 		if ((x == list[i].hdisplay) &&
   3610 		    (y == list[i].vdisplay)) {
   3611 			return 1;
   3612 		}
   3613 	}
   3614 	return 0;
   3615 }
   3616 
   3617 static void
   3618 radeonfb_pickres(struct radeonfb_display *dp, uint16_t *x, uint16_t *y,
   3619     int pan)
   3620 {
   3621 	struct radeonfb_port	*rp;
   3622 	struct edid_info	*ep;
   3623 	int			i, j;
   3624 
   3625 	*x = 0;
   3626 	*y = 0;
   3627 
   3628 	if (pan) {
   3629 		for (i = 0; i < dp->rd_ncrtcs; i++) {
   3630 			rp = dp->rd_crtcs[i].rc_port;
   3631 			ep = &rp->rp_edid;
   3632 			if (!rp->rp_edid_valid) {
   3633 				/* monitor not present */
   3634 				continue;
   3635 			}
   3636 
   3637 			/*
   3638 			 * For now we are ignoring "conflict" that
   3639 			 * could occur when mixing some modes like
   3640 			 * 1280x1024 and 1400x800.  It isn't clear
   3641 			 * which is better, so the first one wins.
   3642 			 */
   3643 			for (j = 0; j < ep->edid_nmodes; j++) {
   3644 				/*
   3645 				 * ignore resolutions that are too big for
   3646 				 * the radeon
   3647 				 */
   3648 				if (ep->edid_modes[j].hdisplay >
   3649 				    dp->rd_softc->sc_maxx)
   3650 					continue;
   3651 				if (ep->edid_modes[j].vdisplay >
   3652 				    dp->rd_softc->sc_maxy)
   3653 					continue;
   3654 
   3655 				/*
   3656 				 * pick largest resolution, the
   3657 				 * smaller monitor will pan
   3658 				 */
   3659 				if ((ep->edid_modes[j].hdisplay >= *x) &&
   3660 				    (ep->edid_modes[j].vdisplay >= *y)) {
   3661 					*x = ep->edid_modes[j].hdisplay;
   3662 					*y = ep->edid_modes[j].vdisplay;
   3663 				}
   3664 			}
   3665 		}
   3666 
   3667 	} else {
   3668 		struct videomode	modes[64];
   3669 		int			nmodes = 0;
   3670 		int			valid = 0;
   3671 
   3672 		for (i = 0; i < dp->rd_ncrtcs; i++) {
   3673 			/*
   3674 			 * pick the largest resolution in common.
   3675 			 */
   3676 			rp = dp->rd_crtcs[i].rc_port;
   3677 			ep = &rp->rp_edid;
   3678 
   3679 			if (!rp->rp_edid_valid)
   3680 				continue;
   3681 
   3682 			if (!valid) {
   3683 				/*
   3684 				 * Pick the preferred mode for this port
   3685 				 * if available.
   3686 				 */
   3687 				if (ep->edid_preferred_mode) {
   3688 					struct videomode *vmp =
   3689 						ep->edid_preferred_mode;
   3690 
   3691 					if ((vmp->hdisplay <=
   3692 					     dp->rd_softc->sc_maxx) &&
   3693 					    (vmp->vdisplay <=
   3694 					     dp->rd_softc->sc_maxy))
   3695 						modes[nmodes++] = *vmp;
   3696 				} else {
   3697 
   3698 					/* initialize starting list */
   3699 					for (j = 0; j < ep->edid_nmodes; j++) {
   3700 						/*
   3701 						 * ignore resolutions that are
   3702 						 * too big for the radeon
   3703 						 */
   3704 						if (ep->edid_modes[j].hdisplay >
   3705 						    dp->rd_softc->sc_maxx)
   3706 							continue;
   3707 						if (ep->edid_modes[j].vdisplay >
   3708 						    dp->rd_softc->sc_maxy)
   3709 							continue;
   3710 
   3711 						modes[nmodes] =
   3712 							ep->edid_modes[j];
   3713 						nmodes++;
   3714 					}
   3715 				}
   3716 				valid = 1;
   3717 			} else {
   3718 				/* merge into preexisting list */
   3719 				for (j = 0; j < nmodes; j++) {
   3720 					if (!radeonfb_hasres(ep->edid_modes,
   3721 						ep->edid_nmodes,
   3722 						modes[j].hdisplay,
   3723 						modes[j].vdisplay)) {
   3724 						modes[j] = modes[nmodes];
   3725 						j--;
   3726 						nmodes--;
   3727 					}
   3728 				}
   3729 			}
   3730 		}
   3731 
   3732 		/* now we have to pick from the merged list */
   3733 		for (i = 0; i < nmodes; i++) {
   3734 			if ((modes[i].hdisplay >= *x) &&
   3735 			    (modes[i].vdisplay >= *y)) {
   3736 				*x = modes[i].hdisplay;
   3737 				*y = modes[i].vdisplay;
   3738 			}
   3739 		}
   3740 	}
   3741 
   3742 	if ((*x == 0) || (*y == 0)) {
   3743 		/* fallback to safe mode */
   3744 		*x = 640;
   3745 		*y = 480;
   3746 	}
   3747 }
   3748 
   3749 /*
   3750  * backlight levels are linear on:
   3751  * - RV200, RV250, RV280, RV350
   3752  * - but NOT on PowerBook4,3 6,3 6,5
   3753  * according to Linux' radeonfb
   3754  */
   3755 
   3756 /* Get the current backlight level for the display.  */
   3757 
   3758 static int
   3759 radeonfb_get_backlight(struct radeonfb_display *dp)
   3760 {
   3761 	int s;
   3762 	uint32_t level;
   3763 
   3764 	s = spltty();
   3765 
   3766 	level = radeonfb_get32(dp->rd_softc, RADEON_LVDS_GEN_CNTL);
   3767 	level &= RADEON_LVDS_BL_MOD_LEV_MASK;
   3768 	level >>= RADEON_LVDS_BL_MOD_LEV_SHIFT;
   3769 
   3770 	/*
   3771 	 * On some chips, we should negate the backlight level.
   3772 	 * XXX Find out on which chips.
   3773 	 */
   3774 	if (dp->rd_softc->sc_flags & RFB_INV_BLIGHT)
   3775 	level = RADEONFB_BACKLIGHT_MAX - level;
   3776 
   3777 	splx(s);
   3778 
   3779 	return level;
   3780 }
   3781 
   3782 /* Set the backlight to the given level for the display.  */
   3783 
   3784 static int
   3785 radeonfb_set_backlight(struct radeonfb_display *dp, int level)
   3786 {
   3787 	struct radeonfb_softc *sc;
   3788 	int rlevel, s;
   3789 	uint32_t lvds;
   3790 
   3791 	s = spltty();
   3792 
   3793 	if (level < 0)
   3794 		level = 0;
   3795 	else if (level >= RADEONFB_BACKLIGHT_MAX)
   3796 		level = RADEONFB_BACKLIGHT_MAX;
   3797 
   3798 	sc = dp->rd_softc;
   3799 
   3800 	/* On some chips, we should negate the backlight level. */
   3801 	if (dp->rd_softc->sc_flags & RFB_INV_BLIGHT) {
   3802 	rlevel = RADEONFB_BACKLIGHT_MAX - level;
   3803 	} else
   3804 	rlevel = level;
   3805 
   3806 	callout_stop(&dp->rd_bl_lvds_co);
   3807 	radeonfb_engine_idle(sc);
   3808 
   3809 	/*
   3810 	 * Turn off the display if the backlight is set to 0, since the
   3811 	 * display is useless without backlight anyway.
   3812 	 */
   3813 	if (level == 0)
   3814 		radeonfb_blank(dp, 1);
   3815 	else if (radeonfb_get_backlight(dp) == 0)
   3816 		radeonfb_blank(dp, 0);
   3817 
   3818 	lvds = radeonfb_get32(sc, RADEON_LVDS_GEN_CNTL);
   3819 	lvds &= ~RADEON_LVDS_DISPLAY_DIS;
   3820 	if (!(lvds & RADEON_LVDS_BLON) || !(lvds & RADEON_LVDS_ON)) {
   3821 		lvds |= dp->rd_bl_lvds_val & RADEON_LVDS_DIGON;
   3822 		lvds |= RADEON_LVDS_BLON | RADEON_LVDS_EN;
   3823 		radeonfb_put32(sc, RADEON_LVDS_GEN_CNTL, lvds);
   3824 		lvds &= ~RADEON_LVDS_BL_MOD_LEV_MASK;
   3825 		lvds |= rlevel << RADEON_LVDS_BL_MOD_LEV_SHIFT;
   3826 		lvds |= RADEON_LVDS_ON;
   3827 		lvds |= dp->rd_bl_lvds_val & RADEON_LVDS_BL_MOD_EN;
   3828 	} else {
   3829 		lvds &= ~RADEON_LVDS_BL_MOD_LEV_MASK;
   3830 		lvds |= rlevel << RADEON_LVDS_BL_MOD_LEV_SHIFT;
   3831 		radeonfb_put32(sc, RADEON_LVDS_GEN_CNTL, lvds);
   3832 	}
   3833 
   3834 	dp->rd_bl_lvds_val &= ~RADEON_LVDS_STATE_MASK;
   3835 	dp->rd_bl_lvds_val |= lvds & RADEON_LVDS_STATE_MASK;
   3836 	/* XXX What is the correct delay? */
   3837 	callout_schedule(&dp->rd_bl_lvds_co, 200 * hz);
   3838 
   3839 	splx(s);
   3840 
   3841 	return 0;
   3842 }
   3843 
   3844 /*
   3845  * Callout function for delayed operations on the LVDS_GEN_CNTL register.
   3846  * Set the delayed bits in the register, and clear the stored delayed
   3847  * value.
   3848  */
   3849 
   3850 static void radeonfb_lvds_callout(void *arg)
   3851 {
   3852 	struct radeonfb_display *dp = arg;
   3853 	int s;
   3854 
   3855 	s = splhigh();
   3856 
   3857 	radeonfb_mask32(dp->rd_softc, RADEON_LVDS_GEN_CNTL, ~0,
   3858 			dp->rd_bl_lvds_val);
   3859 	dp->rd_bl_lvds_val = 0;
   3860 
   3861 	splx(s);
   3862 }
   3863 
   3864 static void
   3865 radeonfb_brightness_up(device_t dev)
   3866 {
   3867 	struct radeonfb_softc *sc = device_private(dev);
   3868 	int level;
   3869 
   3870 	/* we assume the main display is the first one - need a better way */
   3871 	if (sc->sc_ndisplays < 1) return;
   3872 	level = radeonfb_get_backlight(&sc->sc_displays[0]);
   3873 	level = min(RADEONFB_BACKLIGHT_MAX, level + 5);
   3874 	radeonfb_set_backlight(&sc->sc_displays[0], level);
   3875 }
   3876 
   3877 static void
   3878 radeonfb_brightness_down(device_t dev)
   3879 {
   3880 	struct radeonfb_softc *sc = device_private(dev);
   3881 	int level;
   3882 
   3883 	/* we assume the main display is the first one - need a better way */
   3884 	if (sc->sc_ndisplays < 1) return;
   3885 	level = radeonfb_get_backlight(&sc->sc_displays[0]);
   3886 	level = max(0, level - 5);
   3887 	radeonfb_set_backlight(&sc->sc_displays[0], level);
   3888 }
   3889