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radeonfb.c revision 1.7
      1 /* $NetBSD: radeonfb.c,v 1.7 2006/11/28 13:38:39 christos 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 1.7 2006/11/28 13:38:39 christos Exp $");
     74 
     75 #define RADEONFB_DEFAULT_DEPTH 32
     76 
     77 #include <sys/param.h>
     78 #include <sys/systm.h>
     79 #include <sys/device.h>
     80 #include <sys/malloc.h>
     81 #include <machine/bus.h>
     82 #include <sys/kernel.h>
     83 #include <sys/lwp.h>
     84 #include <sys/kauth.h>
     85 
     86 #include <dev/wscons/wsdisplayvar.h>
     87 #include <dev/wscons/wsconsio.h>
     88 #include <dev/wsfont/wsfont.h>
     89 #include <dev/rasops/rasops.h>
     90 #include <dev/videomode/videomode.h>
     91 #include <dev/videomode/edidvar.h>
     92 #include <dev/wscons/wsdisplay_vconsvar.h>
     93 
     94 #include <dev/pci/pcidevs.h>
     95 #include <dev/pci/pcireg.h>
     96 #include <dev/pci/pcivar.h>
     97 #include <dev/pci/radeonfbreg.h>
     98 #include <dev/pci/radeonfbvar.h>
     99 
    100 static int radeonfb_match(struct device *, struct cfdata *, void *);
    101 static void radeonfb_attach(struct device *, struct device *, void *);
    102 static int radeonfb_ioctl(void *, void *, unsigned long, caddr_t, int,
    103     struct lwp *);
    104 static paddr_t radeonfb_mmap(void *, void *, off_t, int);
    105 static int radeonfb_scratch_test(struct radeonfb_softc *, int, uint32_t);
    106 static void radeonfb_loadbios(struct radeonfb_softc *,
    107     struct pci_attach_args *);
    108 
    109 static uintmax_t radeonfb_getprop_num(struct radeonfb_softc *, const char *,
    110     uintmax_t);
    111 static int radeonfb_getclocks(struct radeonfb_softc *);
    112 static int radeonfb_gettmds(struct radeonfb_softc *);
    113 static int radeonfb_calc_dividers(struct radeonfb_softc *, uint32_t,
    114     uint32_t *, uint32_t *);
    115 static int radeonfb_getconnectors(struct radeonfb_softc *);
    116 static const struct videomode *radeonfb_modelookup(const char *);
    117 static void radeonfb_init_screen(void *, struct vcons_screen *, int, long *);
    118 static void radeonfb_pllwriteupdate(struct radeonfb_softc *, int);
    119 static void radeonfb_pllwaitatomicread(struct radeonfb_softc *, int);
    120 static void radeonfb_program_vclk(struct radeonfb_softc *, int, int);
    121 static void radeonfb_modeswitch(struct radeonfb_display *);
    122 static void radeonfb_setcrtc(struct radeonfb_display *, int);
    123 static void radeonfb_init_misc(struct radeonfb_softc *);
    124 static void radeonfb_set_fbloc(struct radeonfb_softc *);
    125 static void radeonfb_init_palette(struct radeonfb_softc *, int);
    126 static void radeonfb_r300cg_workaround(struct radeonfb_softc *);
    127 
    128 static int radeonfb_isblank(struct radeonfb_display *);
    129 static void radeonfb_blank(struct radeonfb_display *, int);
    130 static int radeonfb_set_cursor(struct radeonfb_display *,
    131     struct wsdisplay_cursor *);
    132 static int radeonfb_set_curpos(struct radeonfb_display *,
    133     struct wsdisplay_curpos *);
    134 
    135 /* acceleration support */
    136 static void  radeonfb_rectfill(struct radeonfb_display *, int dstx, int dsty,
    137     int width, int height, uint32_t color);
    138 static void radeonfb_bitblt(struct radeonfb_display *, int srcx, int srcy,
    139     int dstx, int dsty, int width, int height, int rop, uint32_t mask);
    140 static void radeonfb_feed_bytes(struct radeonfb_display *, int, uint8_t *);
    141 static void radeonfb_setup_mono(struct radeonfb_display *, int, int, int,
    142     int, uint32_t, uint32_t);
    143 
    144 /* hw cursor support */
    145 static void radeonfb_cursor_cmap(struct radeonfb_display *);
    146 static void radeonfb_cursor_shape(struct radeonfb_display *);
    147 static void radeonfb_cursor_position(struct radeonfb_display *);
    148 static void radeonfb_cursor_visible(struct radeonfb_display *);
    149 static void radeonfb_cursor_update(struct radeonfb_display *, unsigned);
    150 
    151 static void radeonfb_wait_fifo(struct radeonfb_softc *, int);
    152 static void radeonfb_engine_idle(struct radeonfb_softc *);
    153 static void radeonfb_engine_flush(struct radeonfb_softc *);
    154 static void radeonfb_engine_reset(struct radeonfb_softc *);
    155 static void radeonfb_engine_init(struct radeonfb_display *);
    156 static inline void radeonfb_unclip(struct radeonfb_softc *);
    157 
    158 static void radeonfb_eraserows(void *, int, int, long);
    159 static void radeonfb_erasecols(void *, int, int, int, long);
    160 static void radeonfb_copyrows(void *, int, int, int);
    161 static void radeonfb_copycols(void *, int, int, int, int);
    162 static void radeonfb_cursor(void *, int, int, int);
    163 static void radeonfb_putchar(void *, int, int, unsigned, long);
    164 static int radeonfb_allocattr(void *, int, int, int, long *);
    165 
    166 static struct videomode *radeonfb_best_refresh(struct videomode *,
    167     struct videomode *);
    168 static void radeonfb_pickres(struct radeonfb_display *, uint16_t *,
    169     uint16_t *, int);
    170 static const struct videomode *radeonfb_port_mode(struct radeonfb_port *,
    171     int, int);
    172 
    173 
    174 #define	RADEON_DEBUG
    175 #ifdef	RADEON_DEBUG
    176 int	radeon_debug = 1;
    177 #define	DPRINTF(x)	\
    178 	if (radeon_debug) printf x
    179 #define	PRINTREG(r)	DPRINTF((#r " = %08x\n", GET32(sc, r)))
    180 #define	PRINTPLL(r)	DPRINTF((#r " = %08x\n", GETPLL(sc, r)))
    181 #else
    182 #define	DPRINTF(x)
    183 #define	PRINTREG(r)
    184 #define	PRINTPLL(r)
    185 #endif
    186 
    187 #define	ROUNDUP(x,y)	(((x) + ((y) - 1)) & ~((y) - 1))
    188 
    189 #ifndef	RADEON_DEFAULT_MODE
    190 /* any reasonably modern display should handle this */
    191 #define	RADEON_DEFAULT_MODE	"1024x768x60"
    192 //#define	RADEON_DEFAULT_MODE	"1280x1024x60"
    193 #endif
    194 
    195 const char	*radeonfb_default_mode = RADEON_DEFAULT_MODE;
    196 
    197 static struct {
    198 	int		size;		/* minimum memory size (MB) */
    199 	int		maxx;		/* maximum x dimension */
    200 	int		maxy;		/* maximum y dimension */
    201 	int		maxbpp;		/* maximum bpp */
    202 	int		maxdisp;	/* maximum logical display count */
    203 } radeonfb_limits[] = {
    204 	{ 32,	2048, 1536, 32, 2 },
    205 	{ 16,	1600, 1200, 32, 2 },
    206 	{ 8,	1600, 1200, 32, 1 },
    207 	{ 0,	0, 0, 0, 0 },
    208 };
    209 
    210 static struct wsscreen_descr radeonfb_stdscreen = {
    211 	"fb",		/* name */
    212 	0, 0,		/* ncols, nrows */
    213 	NULL,		/* textops */
    214 	8, 16,		/* fontwidth, fontheight */
    215 	WSSCREEN_WSCOLORS, /* capabilities */
    216 	0,		/* modecookie */
    217 };
    218 
    219 struct wsdisplay_accessops radeonfb_accessops = {
    220 	radeonfb_ioctl,
    221 	radeonfb_mmap,
    222 	NULL,		/* vcons_alloc_screen */
    223 	NULL,		/* vcons_free_screen */
    224 	NULL,		/* vcons_show_screen */
    225 	NULL,		/* load_font */
    226 	NULL,		/* pollc */
    227 	NULL,		/* scroll */
    228 };
    229 
    230 static struct {
    231 	uint16_t	devid;
    232 	uint16_t	family;
    233 	uint16_t	flags;
    234 } radeonfb_devices[] =
    235 {
    236 	/* R100 family */
    237 	{ PCI_PRODUCT_ATI_RADEON_R100_QD,	RADEON_R100, 0 },
    238 	{ PCI_PRODUCT_ATI_RADEON_R100_QE,	RADEON_R100, 0 },
    239 	{ PCI_PRODUCT_ATI_RADEON_R100_QF,	RADEON_R100, 0 },
    240 	{ PCI_PRODUCT_ATI_RADEON_R100_QG,	RADEON_R100, 0 },
    241 
    242 	/* RV100 family */
    243 	{ PCI_PRODUCT_ATI_RADEON_RV100_LY,	RADEON_RV100, RFB_MOB },
    244 	{ PCI_PRODUCT_ATI_RADEON_RV100_LZ,	RADEON_RV100, RFB_MOB },
    245 	{ PCI_PRODUCT_ATI_RADEON_RV100_QY,	RADEON_RV100, 0 },
    246 	{ PCI_PRODUCT_ATI_RADEON_RV100_QZ,	RADEON_RV100, 0 },
    247 
    248 	/* RS100 family */
    249 	{ PCI_PRODUCT_ATI_RADEON_RS100_4136,	RADEON_RS100, 0 },
    250 	{ PCI_PRODUCT_ATI_RADEON_RS100_4336,	RADEON_RS100, RFB_MOB },
    251 
    252 	/* RS200/RS250 family */
    253 	{ PCI_PRODUCT_ATI_RADEON_RS200_4337,	RADEON_RS200, RFB_MOB },
    254 	{ PCI_PRODUCT_ATI_RADEON_RS200_A7,	RADEON_RS200, 0 },
    255 	{ PCI_PRODUCT_ATI_RADEON_RS250_B7,	RADEON_RS200, RFB_MOB },
    256 	{ PCI_PRODUCT_ATI_RADEON_RS250_D7,	RADEON_RS200, 0 },
    257 
    258 	/* R200 family */
    259 	/* add more R200 products? , 5148 */
    260 	{ PCI_PRODUCT_ATI_RADEON_R200_BB,	RADEON_R200, 0 },
    261 	{ PCI_PRODUCT_ATI_RADEON_R200_BC,	RADEON_R200, 0 },
    262 	{ PCI_PRODUCT_ATI_RADEON_R200_QH,	RADEON_R200, 0 },
    263 	{ PCI_PRODUCT_ATI_RADEON_R200_QL,	RADEON_R200, 0 },
    264 	{ PCI_PRODUCT_ATI_RADEON_R200_QM,	RADEON_R200, 0 },
    265 
    266 	/* RV200 family */
    267 	{ PCI_PRODUCT_ATI_RADEON_RV200_LW,	RADEON_RV200, RFB_MOB },
    268 	{ PCI_PRODUCT_ATI_RADEON_RV200_LX,	RADEON_RV200, RFB_MOB },
    269 	{ PCI_PRODUCT_ATI_RADEON_RV200_QW,	RADEON_RV200, 0 },
    270 	{ PCI_PRODUCT_ATI_RADEON_RV200_QX,	RADEON_RV200, 0 },
    271 
    272 	/* RV250 family */
    273 	{ PCI_PRODUCT_ATI_RADEON_RV250_4966,	RADEON_RV250, 0 },
    274 	{ PCI_PRODUCT_ATI_RADEON_RV250_4967,	RADEON_RV250, 0 },
    275 	{ PCI_PRODUCT_ATI_RADEON_RV250_4C64,	RADEON_RV250, RFB_MOB },
    276 	{ PCI_PRODUCT_ATI_RADEON_RV250_4C66,	RADEON_RV250, RFB_MOB },
    277 	{ PCI_PRODUCT_ATI_RADEON_RV250_4C67,	RADEON_RV250, RFB_MOB },
    278 
    279 	/* RS300 family */
    280 	{ PCI_PRODUCT_ATI_RADEON_RS300_X5,	RADEON_RS300, 0 },
    281 	{ PCI_PRODUCT_ATI_RADEON_RS300_X4,	RADEON_RS300, 0 },
    282 	{ PCI_PRODUCT_ATI_RADEON_RS300_7834,	RADEON_RS300, 0 },
    283 	{ PCI_PRODUCT_ATI_RADEON_RS300_7835,	RADEON_RS300, RFB_MOB },
    284 
    285 	/* RV280 family */
    286 	{ PCI_PRODUCT_ATI_RADEON_RV280_5960,	RADEON_RV280, 0 },
    287 	{ PCI_PRODUCT_ATI_RADEON_RV280_5961,	RADEON_RV280, 0 },
    288 	{ PCI_PRODUCT_ATI_RADEON_RV280_5962,	RADEON_RV280, 0 },
    289 	{ PCI_PRODUCT_ATI_RADEON_RV280_5963,	RADEON_RV280, 0 },
    290 	{ PCI_PRODUCT_ATI_RADEON_RV280_5964,	RADEON_RV280, 0 },
    291 	{ PCI_PRODUCT_ATI_RADEON_RV280_5C61,	RADEON_RV280, RFB_MOB },
    292 	{ PCI_PRODUCT_ATI_RADEON_RV280_5C63,	RADEON_RV280, RFB_MOB },
    293 
    294 	/* R300 family */
    295 	{ PCI_PRODUCT_ATI_RADEON_R300_AD,	RADEON_R300, 0 },
    296 	{ PCI_PRODUCT_ATI_RADEON_R300_AE,	RADEON_R300, 0 },
    297 	{ PCI_PRODUCT_ATI_RADEON_R300_AF,	RADEON_R300, 0 },
    298 	{ PCI_PRODUCT_ATI_RADEON_R300_AG,	RADEON_R300, 0 },
    299 	{ PCI_PRODUCT_ATI_RADEON_R300_ND,	RADEON_R300, 0 },
    300 	{ PCI_PRODUCT_ATI_RADEON_R300_NE,	RADEON_R300, 0 },
    301 	{ PCI_PRODUCT_ATI_RADEON_R300_NF,	RADEON_R300, 0 },
    302 	{ PCI_PRODUCT_ATI_RADEON_R300_NG,	RADEON_R300, 0 },
    303 
    304 	/* RV350/RV360 family */
    305 	{ PCI_PRODUCT_ATI_RADEON_RV350_AP,	RADEON_RV350, 0 },
    306 	{ PCI_PRODUCT_ATI_RADEON_RV350_AQ,	RADEON_RV350, 0 },
    307 	{ PCI_PRODUCT_ATI_RADEON_RV360_AR,	RADEON_RV350, 0 },
    308 	{ PCI_PRODUCT_ATI_RADEON_RV350_AS,	RADEON_RV350, 0 },
    309 	{ PCI_PRODUCT_ATI_RADEON_RV350_AT,	RADEON_RV350, 0 },
    310 	{ PCI_PRODUCT_ATI_RADEON_RV350_AV,	RADEON_RV350, 0 },
    311 	{ PCI_PRODUCT_ATI_RADEON_RV350_NP,	RADEON_RV350, RFB_MOB },
    312 	{ PCI_PRODUCT_ATI_RADEON_RV350_NQ,	RADEON_RV350, RFB_MOB },
    313 	{ PCI_PRODUCT_ATI_RADEON_RV350_NR,	RADEON_RV350, RFB_MOB },
    314 	{ PCI_PRODUCT_ATI_RADEON_RV350_NS,	RADEON_RV350, RFB_MOB },
    315 	{ PCI_PRODUCT_ATI_RADEON_RV350_NT,	RADEON_RV350, RFB_MOB },
    316 	{ PCI_PRODUCT_ATI_RADEON_RV350_NV,	RADEON_RV350, RFB_MOB },
    317 
    318 	/* R350/R360 family */
    319 	{ PCI_PRODUCT_ATI_RADEON_R350_AH,	RADEON_R350, 0 },
    320 	{ PCI_PRODUCT_ATI_RADEON_R350_AI,	RADEON_R350, 0 },
    321 	{ PCI_PRODUCT_ATI_RADEON_R350_AJ,	RADEON_R350, 0 },
    322 	{ PCI_PRODUCT_ATI_RADEON_R350_AK,	RADEON_R350, 0 },
    323 	{ PCI_PRODUCT_ATI_RADEON_R350_NH,	RADEON_R350, 0 },
    324 	{ PCI_PRODUCT_ATI_RADEON_R350_NI,	RADEON_R350, 0 },
    325 	{ PCI_PRODUCT_ATI_RADEON_R350_NK,	RADEON_R350, 0 },
    326 	{ PCI_PRODUCT_ATI_RADEON_R360_NJ,	RADEON_R350, 0 },
    327 
    328 	/* RV380/RV370 family */
    329 	{ PCI_PRODUCT_ATI_RADEON_RV380_3150,	RADEON_RV380, RFB_MOB },
    330 	{ PCI_PRODUCT_ATI_RADEON_RV380_3154,	RADEON_RV380, RFB_MOB },
    331 	{ PCI_PRODUCT_ATI_RADEON_RV380_3E50,	RADEON_RV380, 0 },
    332 	{ PCI_PRODUCT_ATI_RADEON_RV380_3E54,	RADEON_RV380, 0 },
    333 	{ PCI_PRODUCT_ATI_RADEON_RV370_5460,	RADEON_RV380, RFB_MOB },
    334 	{ PCI_PRODUCT_ATI_RADEON_RV370_5464,	RADEON_RV380, RFB_MOB },
    335 	{ PCI_PRODUCT_ATI_RADEON_RV370_5B60,	RADEON_RV380, 0 },
    336 	{ PCI_PRODUCT_ATI_RADEON_RV370_5B64,	RADEON_RV380, 0 },
    337 	{ PCI_PRODUCT_ATI_RADEON_RV370_5B65,	RADEON_RV380, 0 },
    338 
    339 	/* R420/R423 family */
    340 	{ PCI_PRODUCT_ATI_RADEON_R420_JH,	RADEON_R420, 0 },
    341 	{ PCI_PRODUCT_ATI_RADEON_R420_JI,	RADEON_R420, 0 },
    342 	{ PCI_PRODUCT_ATI_RADEON_R420_JJ,	RADEON_R420, 0 },
    343 	{ PCI_PRODUCT_ATI_RADEON_R420_JK,	RADEON_R420, 0 },
    344 	{ PCI_PRODUCT_ATI_RADEON_R420_JL,	RADEON_R420, 0 },
    345 	{ PCI_PRODUCT_ATI_RADEON_R420_JM,	RADEON_R420, 0 },
    346 	{ PCI_PRODUCT_ATI_RADEON_R420_JN,	RADEON_R420, RFB_MOB },
    347 	{ PCI_PRODUCT_ATI_RADEON_R420_JP,	RADEON_R420, 0 },
    348 	{ PCI_PRODUCT_ATI_RADEON_R423_UH,	RADEON_R420, 0 },
    349 	{ PCI_PRODUCT_ATI_RADEON_R423_UI,	RADEON_R420, 0 },
    350 	{ PCI_PRODUCT_ATI_RADEON_R423_UJ,	RADEON_R420, 0 },
    351 	{ PCI_PRODUCT_ATI_RADEON_R423_UK,	RADEON_R420, 0 },
    352 	{ PCI_PRODUCT_ATI_RADEON_R423_UQ,	RADEON_R420, 0 },
    353 	{ PCI_PRODUCT_ATI_RADEON_R423_UR,	RADEON_R420, 0 },
    354 	{ PCI_PRODUCT_ATI_RADEON_R423_UT,	RADEON_R420, 0 },
    355 	{ PCI_PRODUCT_ATI_RADEON_R423_5D57,	RADEON_R420, 0 },
    356 
    357 	{ 0, 0, 0 }
    358 };
    359 
    360 static struct {
    361 	int divider;
    362 	int mask;
    363 } radeonfb_dividers[] = {
    364 	{  1, 0 },
    365 	{  2, 1 },
    366 	{  3, 4 },
    367 	{  4, 2 },
    368 	{  6, 6 },
    369 	{  8, 3 },
    370 	{ 12, 7 },
    371 	{  0, 0 }
    372 };
    373 
    374 /*
    375  * This table taken from X11.
    376  */
    377 static const struct {
    378 	int			family;
    379 	struct radeon_tmds_pll	plls[4];
    380 } radeonfb_tmds_pll[] = {
    381 	{ RADEON_R100,	{{12000, 0xa1b}, {-1, 0xa3f}}},
    382 	{ RADEON_RV100,	{{12000, 0xa1b}, {-1, 0xa3f}}},
    383 	{ RADEON_RS100, {{0, 0}}},
    384 	{ RADEON_RV200,	{{15000, 0xa1b}, {-1, 0xa3f}}},
    385 	{ RADEON_RS200,	{{15000, 0xa1b}, {-1, 0xa3f}}},
    386 	{ RADEON_R200,	{{15000, 0xa1b}, {-1, 0xa3f}}},
    387 	{ RADEON_RV250,	{{15500, 0x81b}, {-1, 0x83f}}},
    388 	{ RADEON_RS300, {{0, 0}}},
    389 	{ RADEON_RV280,	{{13000, 0x400f4}, {15000, 0x400f7}}},
    390 	{ RADEON_R300,	{{-1, 0xb01cb}}},
    391 	{ RADEON_R350,	{{-1, 0xb01cb}}},
    392 	{ RADEON_RV350,	{{15000, 0xb0155}, {-1, 0xb01cb}}},
    393 	{ RADEON_RV380,	{{15000, 0xb0155}, {-1, 0xb01cb}}},
    394 	{ RADEON_R420,	{{-1, 0xb01cb}}},
    395 };
    396 
    397 
    398 CFATTACH_DECL(radeonfb, sizeof (struct radeonfb_softc),
    399     radeonfb_match, radeonfb_attach, NULL, NULL);
    400 
    401 static int
    402 radeonfb_match(struct device *parent, struct cfdata *match, void *aux)
    403 {
    404 	struct pci_attach_args	*pa = aux;
    405 	int			i;
    406 
    407 	if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_ATI)
    408 		return 0;
    409 
    410 	for (i = 0; radeonfb_devices[i].devid; i++) {
    411 		if (PCI_PRODUCT(pa->pa_id) == radeonfb_devices[i].devid)
    412 			return 100;	/* high to defeat VGA/VESA */
    413 	}
    414 
    415 	return 0;
    416 }
    417 
    418 static void
    419 radeonfb_attach(struct device *parent, struct device *dev, void *aux)
    420 {
    421 	struct radeonfb_softc	*sc = (struct radeonfb_softc *)dev;
    422 	struct pci_attach_args	*pa = aux;
    423 	bus_size_t		bsz;
    424 	pcireg_t		screg;
    425 	int			i, j;
    426 	uint32_t		v;
    427 
    428 	sc->sc_id = pa->pa_id;
    429 	for (i = 0; radeonfb_devices[i].devid; i++) {
    430 		if (PCI_PRODUCT(sc->sc_id) == radeonfb_devices[i].devid)
    431 			break;
    432 	}
    433 
    434 	pci_devinfo(sc->sc_id, pa->pa_class, 0, sc->sc_devinfo,
    435 	    sizeof(sc->sc_devinfo));
    436 
    437 	aprint_naive("\n");
    438 	aprint_normal(": %s\n", sc->sc_devinfo);
    439 
    440 	KASSERT(radeonfb_devices[i].devid != 0);
    441 	sc->sc_pt = pa->pa_tag;
    442 	sc->sc_pc = pa->pa_pc;
    443 	sc->sc_family = radeonfb_devices[i].family;
    444 	sc->sc_flags = radeonfb_devices[i].flags;
    445 
    446 	/* enable memory and IO access */
    447 	screg = pci_conf_read(sc->sc_pc, sc->sc_pt, PCI_COMMAND_STATUS_REG);
    448 	screg |= PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED;
    449 	pci_conf_write(sc->sc_pc, sc->sc_pt, PCI_COMMAND_STATUS_REG, screg);
    450 
    451 	/*
    452 	 * Some flags are general to entire chip families, and rather
    453 	 * than clutter up the table with them, we go ahead and set
    454 	 * them here.
    455 	 */
    456 	switch (sc->sc_family) {
    457 	case RADEON_RS100:
    458 	case RADEON_RS200:
    459 		sc->sc_flags |= RFB_IGP | RFB_RV100;
    460 		break;
    461 
    462 	case RADEON_RV100:
    463 	case RADEON_RV200:
    464 	case RADEON_RV250:
    465 	case RADEON_RV280:
    466 		sc->sc_flags |= RFB_RV100;
    467 		break;
    468 
    469 	case RADEON_RS300:
    470 		sc->sc_flags |= RFB_SDAC | RFB_IGP | RFB_RV100;
    471 		break;
    472 
    473 	case RADEON_R300:
    474 	case RADEON_RV350:
    475 	case RADEON_R350:
    476 	case RADEON_RV380:
    477 	case RADEON_R420:
    478 		/* newer chips */
    479 		sc->sc_flags |= RFB_R300;
    480 		break;
    481 
    482 	case RADEON_R100:
    483 		sc->sc_flags |= RFB_NCRTC2;
    484 		break;
    485 	}
    486 
    487 	/*
    488 	 * XXX: to support true multihead, this must change.
    489 	 */
    490 	sc->sc_ndisplays = 1;
    491 
    492 	/* XXX: */
    493 	if (!HAS_CRTC2(sc)) {
    494 		sc->sc_ndisplays = 1;
    495 	}
    496 
    497 	if (pci_mapreg_map(pa, RADEON_MAPREG_MMIO, PCI_MAPREG_TYPE_MEM,	0,
    498 		&sc->sc_regt, &sc->sc_regh, &sc->sc_regaddr,
    499 		&sc->sc_regsz) != 0) {
    500 		aprint_error("%s: unable to map registers!\n", XNAME(sc));
    501 		goto error;
    502 	}
    503 
    504 	if (pci_mapreg_map(pa, RADEON_MAPREG_IO, PCI_MAPREG_TYPE_IO,	0,
    505 		&sc->sc_iot, &sc->sc_ioh, &sc->sc_ioaddr,
    506 		&sc->sc_iosz) != 0) {
    507 		aprint_error("%s: unable to map IO registers!\n", XNAME(sc));
    508 	}
    509 
    510 	/* scratch register test... */
    511 	if (radeonfb_scratch_test(sc, RADEON_BIOS_0_SCRATCH, 0x55555555) ||
    512 	    radeonfb_scratch_test(sc, RADEON_BIOS_0_SCRATCH, 0xaaaaaaaa)) {
    513 		aprint_error("%s: scratch register test failed!\n", XNAME(sc));
    514 		goto error;
    515 	}
    516 
    517 	PRINTREG(RADEON_BIOS_4_SCRATCH);
    518 	PRINTREG(RADEON_FP_GEN_CNTL);
    519 	PRINTREG(RADEON_FP2_GEN_CNTL);
    520 	PRINTREG(RADEON_TMDS_CNTL);
    521 	PRINTREG(RADEON_TMDS_TRANSMITTER_CNTL);
    522 	PRINTREG(RADEON_TMDS_PLL_CNTL);
    523 	PRINTREG(RADEON_LVDS_GEN_CNTL);
    524 	PRINTREG(RADEON_FP_HORZ_STRETCH);
    525 	PRINTREG(RADEON_FP_VERT_STRETCH);
    526 
    527 	/* XXX: RV100 specific */
    528 	PUT32(sc, RADEON_TMDS_PLL_CNTL, 0xa27);
    529 
    530 	PATCH32(sc, RADEON_TMDS_TRANSMITTER_CNTL,
    531 	    RADEON_TMDS_TRANSMITTER_PLLEN,
    532 	    RADEON_TMDS_TRANSMITTER_PLLEN | RADEON_TMDS_TRANSMITTER_PLLRST);
    533 
    534 	radeonfb_i2c_init(sc);
    535 
    536 	radeonfb_loadbios(sc, pa);
    537 
    538 #ifdef	RADEON_BIOS_INIT
    539 	if (radeonfb_bios_init(sc)) {
    540 		aprint_error("%s: BIOS inititialization failed\n", XNAME(sc));
    541 		goto error;
    542 	}
    543 #endif
    544 
    545 	if (radeonfb_getclocks(sc)) {
    546 		aprint_error("%s: Unable to get reference clocks from BIOS\n",
    547 		    XNAME(sc));
    548 		goto error;
    549 	}
    550 
    551 	if (radeonfb_gettmds(sc)) {
    552 		aprint_error("%s: Unable to identify TMDS PLL settings\n",
    553 		    XNAME(sc));
    554 		goto error;
    555 	}
    556 
    557 	aprint_verbose("%s: refclk = %d.%03d MHz, refdiv = %d "
    558 	    "minpll = %d, maxpll = %d\n", XNAME(sc),
    559 	    (int)sc->sc_refclk / 1000, (int)sc->sc_refclk % 1000,
    560 	    (int)sc->sc_refdiv, (int)sc->sc_minpll, (int)sc->sc_maxpll);
    561 
    562 	radeonfb_getconnectors(sc);
    563 
    564 	radeonfb_set_fbloc(sc);
    565 
    566 	for (i = 0; radeonfb_limits[i].size; i++) {
    567 		if (sc->sc_memsz >= radeonfb_limits[i].size) {
    568 			sc->sc_maxx = radeonfb_limits[i].maxx;
    569 			sc->sc_maxy = radeonfb_limits[i].maxy;
    570 			sc->sc_maxbpp = radeonfb_limits[i].maxbpp;
    571 			/* framebuffer offset, start at a 4K page */
    572 			sc->sc_fboffset = sc->sc_memsz /
    573 			    radeonfb_limits[i].maxdisp;
    574 			/*
    575 			 * we use the fbsize to figure out where we can store
    576 			 * things like cursor data.
    577 			 */
    578 			sc->sc_fbsize =
    579 			    ROUNDUP(ROUNDUP(sc->sc_maxx * sc->sc_maxbpp / 8 ,
    580 					RADEON_STRIDEALIGN) * sc->sc_maxy,
    581 				4096);
    582 			break;
    583 		}
    584 	}
    585 
    586 
    587 	radeonfb_init_misc(sc);
    588 	radeonfb_init_palette(sc, 0);
    589 	if (HAS_CRTC2(sc))
    590 		radeonfb_init_palette(sc, 1);
    591 
    592 	/* program the DAC wirings */
    593 	for (i = 0; i < (HAS_CRTC2(sc) ? 2 : 1); i++) {
    594 		switch (sc->sc_ports[i].rp_dac_type) {
    595 		case RADEON_DAC_PRIMARY:
    596 			PATCH32(sc, RADEON_DAC_CNTL2,
    597 			    i ? RADEON_DAC2_DAC_CLK_SEL : 0,
    598 			    ~RADEON_DAC2_DAC_CLK_SEL);
    599 			break;
    600 		case RADEON_DAC_TVDAC:
    601 			/* we always use the TVDAC to drive a secondary analog
    602 			 * CRT for now.  if we ever support TV-out this will
    603 			 * have to change.
    604 			 */
    605 			SET32(sc, RADEON_DAC_CNTL2,
    606 			    RADEON_DAC2_DAC2_CLK_SEL);
    607 			PATCH32(sc, RADEON_DISP_HW_DEBUG,
    608 			    i ? 0 : RADEON_CRT2_DISP1_SEL,
    609 			    ~RADEON_CRT2_DISP1_SEL);
    610 			break;
    611 		}
    612 	}
    613 	PRINTREG(RADEON_DAC_CNTL2);
    614 	PRINTREG(RADEON_DISP_HW_DEBUG);
    615 
    616 	/* other DAC programming */
    617 	v = GET32(sc, RADEON_DAC_CNTL);
    618 	v &= (RADEON_DAC_RANGE_CNTL_MASK | RADEON_DAC_BLANKING);
    619 	v |= RADEON_DAC_MASK_ALL | RADEON_DAC_8BIT_EN;
    620 	PUT32(sc, RADEON_DAC_CNTL, v);
    621 	PRINTREG(RADEON_DAC_CNTL);
    622 
    623 	/* XXX: this may need more investigation */
    624 	PUT32(sc, RADEON_TV_DAC_CNTL, 0x00280203);
    625 	PRINTREG(RADEON_TV_DAC_CNTL);
    626 
    627 	/* enable TMDS */
    628 	SET32(sc, RADEON_FP_GEN_CNTL,
    629 	    RADEON_FP_TMDS_EN |
    630 		RADEON_FP_CRTC_DONT_SHADOW_VPAR |
    631 		RADEON_FP_CRTC_DONT_SHADOW_HEND);
    632 	CLR32(sc, RADEON_FP_GEN_CNTL, RADEON_FP_SEL_CRTC2);
    633 	if (HAS_CRTC2(sc))
    634 		SET32(sc, RADEON_FP2_GEN_CNTL, RADEON_FP2_SRC_SEL_CRTC2);
    635 
    636 	/*
    637 	 * we use bus_space_map instead of pci_mapreg, because we don't
    638 	 * need the full aperature space.  no point in wasting virtual
    639 	 * address space we don't intend to use, right?
    640 	 */
    641 	if ((sc->sc_memsz < (4096 * 1024)) ||
    642 	    (pci_mapreg_info(sc->sc_pc, sc->sc_pt, RADEON_MAPREG_VRAM,
    643 		PCI_MAPREG_TYPE_MEM, &sc->sc_memaddr, &bsz, NULL) != 0) ||
    644 	    (bsz < sc->sc_memsz)) {
    645 		sc->sc_memsz = 0;
    646 		aprint_error("%s: Bad frame buffer configuration\n",
    647 		    XNAME(sc));
    648 		goto error;
    649 	}
    650 
    651 	/* 64 MB should be enough -- more just wastes map entries */
    652 	if (sc->sc_memsz > (64 << 20))
    653 		sc->sc_memsz = (64 << 20);
    654 
    655 	sc->sc_memt = pa->pa_memt;
    656 	if (bus_space_map(sc->sc_memt, sc->sc_memaddr, sc->sc_memsz,
    657 		BUS_SPACE_MAP_LINEAR, &sc->sc_memh) != 0) {
    658 		sc->sc_memsz = 0;
    659 		aprint_error("%s: Unable to map frame buffer\n", XNAME(sc));
    660 		goto error;
    661 	}
    662 
    663 	aprint_normal("%s: %d MB aperture at 0x%08x, "
    664 	    "%d KB registers at 0x%08x\n", XNAME(sc),
    665 	    (int)sc->sc_memsz >> 20, (unsigned)sc->sc_memaddr,
    666 	    (int)sc->sc_regsz >> 10, (unsigned)sc->sc_regaddr);
    667 
    668 #if 0
    669 	/* setup default video mode from devprop (allows PROM override) */
    670 	sc->sc_defaultmode = radeonfb_default_mode;
    671 	ps = prop_dictionary_get(device_properties(&sc->sc_dev),
    672 	    "videomode");
    673 	if (ps != NULL) {
    674 		sc->sc_modebuf = prop_string_cstring(ps);
    675 		if (sc->sc_modebuf)
    676 			sc->sc_defaultmode = sc->sc_modebuf;
    677 	}
    678 #endif
    679 
    680 	/* initialize some basic display parameters */
    681 	for (i = 0; i < sc->sc_ndisplays; i++) {
    682 		struct radeonfb_display *dp = &sc->sc_displays[i];
    683 		struct rasops_info *ri;
    684 		long defattr;
    685 		struct wsemuldisplaydev_attach_args aa;
    686 
    687 		/*
    688 		 * Figure out how many "displays" (desktops) we are going to
    689 		 * support.  If more than one, then each CRTC gets its own
    690 		 * programming.
    691 		 *
    692 		 * XXX: this code needs to change to support mergedfb.
    693 		 * XXX: would be nice to allow this to be overridden
    694 		 */
    695 		if (HAS_CRTC2(sc) && (sc->sc_ndisplays == 1)) {
    696 			DPRINTF(("dual crtcs!\n"));
    697 			dp->rd_ncrtcs = 2;
    698 			dp->rd_crtcs[0].rc_number = 0;
    699 			dp->rd_crtcs[1].rc_number = 1;
    700 		} else {
    701 			dp->rd_ncrtcs = 1;
    702 			dp->rd_crtcs[0].rc_number = i;
    703 		}
    704 
    705 		/* set up port pointer */
    706 		for (j = 0; j < dp->rd_ncrtcs; j++) {
    707 			dp->rd_crtcs[j].rc_port =
    708 			    &sc->sc_ports[dp->rd_crtcs[j].rc_number];
    709 		}
    710 
    711 		dp->rd_softc = sc;
    712 		dp->rd_wsmode = WSDISPLAYIO_MODE_EMUL;
    713 		dp->rd_bg = WS_DEFAULT_BG;
    714 #if 0
    715 		dp->rd_bpp = sc->sc_maxbpp;	/* XXX: for now */
    716 #else
    717 		dp->rd_bpp = RADEONFB_DEFAULT_DEPTH;	/* XXX */
    718 #endif
    719 		/* for text mode, we pick a resolution that won't
    720 		 * require panning */
    721 		radeonfb_pickres(dp, &dp->rd_virtx, &dp->rd_virty, 0);
    722 
    723 		aprint_normal("%s: display %d: "
    724 		    "virtual resolution %dx%d at %d bpp\n",
    725 		    XNAME(sc), i, dp->rd_virtx, dp->rd_virty, dp->rd_bpp);
    726 
    727 		/* now select the *video mode* that we will use */
    728 		for (j = 0; j < dp->rd_ncrtcs; j++) {
    729 			const struct videomode *vmp;
    730 			vmp = radeonfb_port_mode(dp->rd_crtcs[j].rc_port,
    731 			    dp->rd_virtx, dp->rd_virty);
    732 			dp->rd_crtcs[j].rc_videomode = *vmp;
    733 			printf("%s: port %d: physical %dx%d %dHz\n",
    734 			    XNAME(sc), j, vmp->hdisplay, vmp->vdisplay,
    735 			    DIVIDE(DIVIDE(vmp->dot_clock * 1000,
    736 				       vmp->htotal), vmp->vtotal));
    737 		}
    738 
    739 		/* N.B.: radeon wants 64-byte aligned stride */
    740 		dp->rd_stride = dp->rd_virtx * dp->rd_bpp / 8;
    741 		//dp->rd_stride = sc->sc_maxx * sc->sc_maxbpp / 8;
    742 		dp->rd_stride = ROUNDUP(dp->rd_stride, RADEON_STRIDEALIGN);
    743 
    744 		dp->rd_offset = sc->sc_fboffset * i;
    745 		dp->rd_fbptr = (vaddr_t)bus_space_vaddr(sc->sc_memt,
    746 		    sc->sc_memh) + dp->rd_offset;
    747 		dp->rd_curoff = sc->sc_fbsize;
    748 		dp->rd_curptr = dp->rd_fbptr + dp->rd_curoff;
    749 
    750 		DPRINTF(("fpbtr = %p\n", (void *)dp->rd_fbptr));
    751 
    752 		switch (dp->rd_bpp) {
    753 		case 8:
    754 			dp->rd_format = 2;
    755 			break;
    756 		case 32:
    757 			dp->rd_format = 6;
    758 			break;
    759 		default:
    760 			aprint_error("%s: bad depth %d\n", XNAME(sc),
    761 			    dp->rd_bpp);
    762 			goto error;
    763 		}
    764 
    765 		printf("init engine\n");
    766 		/* XXX: this seems suspicious - per display engine
    767 		   initialization? */
    768 		radeonfb_engine_init(dp);
    769 
    770 		/* copy the template into place */
    771 		dp->rd_wsscreens_storage[0] = radeonfb_stdscreen;
    772 		dp->rd_wsscreens = dp->rd_wsscreens_storage;
    773 
    774 		/* and make up the list */
    775 		dp->rd_wsscreenlist.nscreens = 1;
    776 		dp->rd_wsscreenlist.screens =
    777 		    (const struct wsscreen_descr **)&dp->rd_wsscreens;
    778 
    779 		vcons_init(&dp->rd_vd, dp, dp->rd_wsscreens,
    780 		    &radeonfb_accessops);
    781 
    782 		dp->rd_vd.init_screen = radeonfb_init_screen;
    783 
    784 		dp->rd_console = 1;
    785 
    786 		dp->rd_vscreen.scr_flags |= VCONS_SCREEN_IS_STATIC;
    787 
    788 		vcons_init_screen(&dp->rd_vd, &dp->rd_vscreen,
    789 		    dp->rd_console, &defattr);
    790 
    791 		ri = &dp->rd_vscreen.scr_ri;
    792 		dp->rd_wsscreens->textops = &ri->ri_ops;
    793 		dp->rd_wsscreens->capabilities = ri->ri_caps;
    794 		dp->rd_wsscreens->nrows = ri->ri_rows;
    795 		dp->rd_wsscreens->ncols = ri->ri_cols;
    796 
    797 #ifdef SPLASHSCREEN
    798 		dp->rd_splash.si_depth = ri->ri_depth;
    799 		dp->rd_splash.si_bits = ri->ri_bits;
    800 		dp->rd_splash.si_hwbits = ri->ri_hwbits;
    801 		dp->rd_splash.si_width = ri->ri_width;
    802 		dp->rd_splash.si_height = ri->ri_height;
    803 		dp->rd_splash.si_stride = ri->ri_stride;
    804 		dp->rd_splash.si_fillrect = NULL;
    805 #endif
    806 		if (dp->rd_console) {
    807 
    808 			wsdisplay_cnattach(dp->rd_wsscreens, ri, 0, 0,
    809 			    defattr);
    810 #ifdef SPLASHSCREEN
    811 			splash_render(&dp->rd_splash,
    812 			    SPLASH_F_CENTER|SPLASH_F_FILL);
    813 #endif
    814 
    815 #ifdef SPLASHSCREEN_PROGRESS
    816 			dp->rd_progress.sp_top = (dp->rd_virty / 8) * 7;
    817 			dp->rd_progress.sp_width = (dp->rd_virtx / 4) * 3;
    818 			dp->rd_progress.sp_left = (dp->rd_virtx -
    819 			    dp->rd_progress.sp_width) / 2;
    820 			dp->rd_progress.sp_height = 20;
    821 			dp->rd_progress.sp_state = -1;
    822 			dp->rd_progress.sp_si = &dp->rd_splash;
    823 			splash_progress_init(&dp->rd_progress);
    824 			SCREEN_DISABLE_DRAWING(&dp->rd_vscreen);
    825 #endif
    826 
    827 		} else {
    828 
    829 			/*
    830 			 * since we're not the console we can postpone
    831 			 * the rest until someone actually allocates a
    832 			 * screen for us.  but we do clear the screen
    833 			 * at least.
    834 			 */
    835 			memset(ri->ri_bits, 0, 1024);
    836 
    837 			radeonfb_modeswitch(dp);
    838 #ifdef SPLASHSCREEN
    839 			splash_render(&dp->rd_splash,
    840 			    SPLASH_F_CENTER|SPLASH_F_FILL);
    841 			SCREEN_DISABLE_DRAWING(&dp->rd_vscreen);
    842 #endif
    843 		}
    844 
    845 		aa.console = dp->rd_console;
    846 		aa.scrdata = &dp->rd_wsscreenlist;
    847 		aa.accessops = &radeonfb_accessops;
    848 		aa.accesscookie = &dp->rd_vd;
    849 
    850 		config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint);
    851 		radeonfb_blank(dp, 0);
    852 	}
    853 
    854 	return;
    855 
    856 error:
    857 	if (sc->sc_biossz)
    858 		free(sc->sc_bios, M_DEVBUF);
    859 
    860 	if (sc->sc_regsz)
    861 		bus_space_unmap(sc->sc_regt, sc->sc_regh, sc->sc_regsz);
    862 
    863 	if (sc->sc_memsz)
    864 		bus_space_unmap(sc->sc_memt, sc->sc_memh, sc->sc_memsz);
    865 }
    866 
    867 int
    868 radeonfb_ioctl(void *v, void *vs,
    869     unsigned long cmd, caddr_t d, int flag, struct lwp *l)
    870 {
    871 	struct vcons_data	*vd;
    872 	struct radeonfb_display	*dp;
    873 	struct radeonfb_softc	*sc;
    874 
    875 	vd = (struct vcons_data *)v;
    876 	dp = (struct radeonfb_display *)vd->cookie;
    877 	sc = dp->rd_softc;
    878 
    879 	switch (cmd) {
    880 	case WSDISPLAYIO_GTYPE:
    881 		*(unsigned *)d = WSDISPLAY_TYPE_PCIMISC;
    882 		return 0;
    883 
    884 	case WSDISPLAYIO_GINFO:
    885 		if (vd->active != NULL) {
    886 			struct wsdisplay_fbinfo *fb;
    887 			fb = (struct wsdisplay_fbinfo *)d;
    888 			fb->width = dp->rd_virtx;
    889 			fb->height = dp->rd_virty;
    890 			fb->depth = dp->rd_bpp;
    891 			fb->cmsize = 256;
    892 			return 0;
    893 		} else
    894 			return ENODEV;
    895 	case WSDISPLAYIO_GVIDEO:
    896 		if (radeonfb_isblank(dp))
    897 			*(unsigned *)d = WSDISPLAYIO_VIDEO_OFF;
    898 		else
    899 			*(unsigned *)d = WSDISPLAYIO_VIDEO_ON;
    900 		return 0;
    901 
    902 	case WSDISPLAYIO_SVIDEO:
    903 		radeonfb_blank(dp,
    904 		    (*(unsigned int *)d == WSDISPLAYIO_VIDEO_OFF));
    905 		return 0;
    906 
    907 	case WSDISPLAYIO_GETCMAP:
    908 #if 0
    909 		if (dp->rd_bpp == 8)
    910 			return radeonfb_getcmap(sc,
    911 			    (struct wsdisplay_cmap *)d);
    912 #endif
    913 		return EINVAL;
    914 
    915 	case WSDISPLAYIO_PUTCMAP:
    916 #if 0
    917 		if (dp->rd_bpp == 8)
    918 			return radeonfb_putcmap(sc,
    919 			    (struct wsdisplay_cmap *)d);
    920 #endif
    921 		return EINVAL;
    922 
    923 	case WSDISPLAYIO_LINEBYTES:
    924 		*(unsigned *)d = dp->rd_stride;
    925 		return 0;
    926 
    927 	case WSDISPLAYIO_SMODE:
    928 		if (*(int *)d != dp->rd_wsmode) {
    929 			dp->rd_wsmode = *(int *)d;
    930 			if ((dp->rd_wsmode == WSDISPLAYIO_MODE_EMUL) &&
    931 			    (dp->rd_vd.active)) {
    932 				vcons_redraw_screen(dp->rd_vd.active);
    933 			}
    934 		}
    935 		return 0;
    936 
    937 	case WSDISPLAYIO_GCURMAX:
    938 		((struct wsdisplay_curpos *)d)->x = RADEON_CURSORMAXX;
    939 		((struct wsdisplay_curpos *)d)->y = RADEON_CURSORMAXY;
    940 		return 0;
    941 
    942 	case WSDISPLAYIO_SCURSOR:
    943 		return radeonfb_set_cursor(dp, (struct wsdisplay_cursor *)d);
    944 
    945 	case WSDISPLAYIO_GCURSOR:
    946 		return EPASSTHROUGH;
    947 
    948 	case WSDISPLAYIO_GCURPOS:
    949 		((struct wsdisplay_curpos *)d)->x = dp->rd_cursor.rc_pos.x;
    950 		((struct wsdisplay_curpos *)d)->y = dp->rd_cursor.rc_pos.y;
    951 		return 0;
    952 
    953 	case WSDISPLAYIO_SCURPOS:
    954 		return radeonfb_set_curpos(dp, (struct wsdisplay_curpos *)d);
    955 
    956 	case WSDISPLAYIO_SSPLASH:
    957 #if defined(SPLASHSCREEN)
    958 		if (*(int *)d == 1) {
    959 			SCREEN_DISABLE_DRAWING(&dp->rd_vscreen);
    960 			splash_render(&dp->rd_splash,
    961 			    SPLASH_F_CENTER|SPLASH_F_FILL);
    962 		} else
    963 			SCREEN_ENABLE_DRAWING(&dp->rd_vscreen);
    964 		return 0;
    965 #else
    966 		return ENODEV;
    967 #endif
    968 	case WSDISPLAYIO_SPROGRESS:
    969 #if defined(SPLASHSCREEN) && defined(SPLASHSCREEN_PROGRESS)
    970 		dp->rd_progress.sp_force = 1;
    971 		splash_progress_update(&dp->rd_progress);
    972 		dp->rd_progress.sp_force = 0;
    973 		return 0;
    974 #else
    975 		return ENODEV;
    976 #endif
    977 
    978 	default:
    979 		return EPASSTHROUGH;
    980 	}
    981 }
    982 
    983 paddr_t
    984 radeonfb_mmap(void *v, void *vs, off_t offset, int prot)
    985 {
    986 	struct vcons_data	*vd;
    987 	struct radeonfb_display	*dp;
    988 	struct radeonfb_softc	*sc;
    989 #ifdef RADEONFB_MMAP_BARS
    990 	struct lwp *me;
    991 #endif
    992 	paddr_t			pa;
    993 
    994 	vd = (struct vcons_data *)v;
    995 	dp = (struct radeonfb_display *)vd->cookie;
    996 	sc = dp->rd_softc;
    997 
    998 	/* XXX: note that we don't allow mapping of registers right now */
    999 	/* XXX: this means that the XFree86 radeon driver won't work */
   1000 
   1001 	if ((offset >= 0) && (offset < (dp->rd_virty * dp->rd_stride))) {
   1002 		pa = bus_space_mmap(sc->sc_memt,
   1003 		    sc->sc_memaddr + dp->rd_offset + offset, 0,
   1004 		    prot, BUS_SPACE_MAP_LINEAR);
   1005 		return pa;
   1006 	}
   1007 
   1008 #ifdef RADEONFB_MMAP_BARS
   1009 	/*
   1010 	 * restrict all other mappings to processes with superuser privileges
   1011 	 * or the kernel itself
   1012 	 */
   1013 	me = curlwp;
   1014 	if (me != NULL) {
   1015 		if (kauth_authorize_generic(me->l_cred, KAUTH_GENERIC_ISSUSER,
   1016 		    NULL) != 0) {
   1017 			printf("%s: mmap() rejected.\n", sc->sc_dev.dv_xname);
   1018 			return -1;
   1019 		}
   1020 	}
   1021 
   1022 	if ((offset >= sc->sc_regaddr) &&
   1023 	    (offset < sc->sc_regaddr + sc->sc_regsz)) {
   1024 		return bus_space_mmap(sc->sc_regt, offset, 0, prot,
   1025 		    BUS_SPACE_MAP_LINEAR);
   1026 	}
   1027 
   1028 	if ((offset >= sc->sc_memaddr) &&
   1029 	    (offset < sc->sc_memaddr + sc->sc_memsz)) {
   1030 		return bus_space_mmap(sc->sc_memt, offset, 0, prot,
   1031 		    BUS_SPACE_MAP_LINEAR);
   1032 	}
   1033 
   1034 #ifdef macppc
   1035 	/* allow mapping of IO space */
   1036 	if ((offset >= 0xf2000000) && (offset < 0xf2800000)) {
   1037 		pa = bus_space_mmap(sc->sc_iot, offset-0xf2000000, 0, prot,
   1038 		    BUS_SPACE_MAP_LINEAR);
   1039 		return pa;
   1040 	}
   1041 #endif /* macppc */
   1042 
   1043 #endif /* RADEONFB_MMAP_BARS */
   1044 
   1045 	return -1;
   1046 }
   1047 
   1048 static void
   1049 radeonfb_loadbios(struct radeonfb_softc *sc, struct pci_attach_args *pa)
   1050 {
   1051 	bus_space_tag_t		romt;
   1052 	bus_space_handle_t	romh, biosh;
   1053 	bus_size_t		romsz;
   1054 	bus_addr_t		ptr;
   1055 
   1056 	if (pci_mapreg_map(pa, PCI_MAPREG_ROM, PCI_MAPREG_TYPE_ROM,
   1057 		BUS_SPACE_MAP_PREFETCHABLE, &romt, &romh, NULL, &romsz) != 0) {
   1058 		aprint_verbose("%s: unable to map BIOS!\n", XNAME(sc));
   1059 		return;
   1060 	}
   1061 
   1062 	pci_find_rom(pa, romt, romh, PCI_ROM_CODE_TYPE_X86, &biosh,
   1063 	    &sc->sc_biossz);
   1064 	if (sc->sc_biossz == 0) {
   1065 		aprint_verbose("%s: Video BIOS not present\n", XNAME(sc));
   1066 		return;
   1067 	}
   1068 
   1069 	sc->sc_bios = malloc(sc->sc_biossz, M_DEVBUF, M_WAITOK);
   1070 	bus_space_read_region_1(romt, biosh, 0, sc->sc_bios, sc->sc_biossz);
   1071 
   1072 	/* unmap the PCI expansion rom */
   1073 	bus_space_unmap(romt, romh, romsz);
   1074 
   1075 	/* turn off rom decoder now */
   1076 	pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM,
   1077 	    pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_MAPREG_ROM) &
   1078 	    ~PCI_MAPREG_ROM_ENABLE);
   1079 
   1080 	ptr = GETBIOS16(sc, 0x48);
   1081 	if ((GETBIOS32(sc, ptr + 4) == 0x41544f4d /* "ATOM" */) ||
   1082 	    (GETBIOS32(sc, ptr + 4) == 0x4d4f5441 /* "MOTA" */)) {
   1083 		sc->sc_flags |= RFB_ATOM;
   1084 	}
   1085 
   1086 	aprint_verbose("%s: Found %d KB %s BIOS\n", XNAME(sc),
   1087 	    (unsigned)sc->sc_biossz >> 10, IS_ATOM(sc) ? "ATOM" : "Legacy");
   1088 }
   1089 
   1090 
   1091 uint32_t
   1092 radeonfb_get32(struct radeonfb_softc *sc, uint32_t reg)
   1093 {
   1094 
   1095 	return bus_space_read_4(sc->sc_regt, sc->sc_regh, reg);
   1096 }
   1097 
   1098 void
   1099 radeonfb_put32(struct radeonfb_softc *sc, uint32_t reg, uint32_t val)
   1100 {
   1101 
   1102 	bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, val);
   1103 }
   1104 
   1105 void
   1106 radeonfb_mask32(struct radeonfb_softc *sc, uint32_t reg,
   1107     uint32_t andmask, uint32_t ormask)
   1108 {
   1109 	int		s;
   1110 	uint32_t	val;
   1111 
   1112 	s = splhigh();
   1113 	val = radeonfb_get32(sc, reg);
   1114 	val = (val & andmask) | ormask;
   1115 	radeonfb_put32(sc, reg, val);
   1116 	splx(s);
   1117 }
   1118 
   1119 uint32_t
   1120 radeonfb_getindex(struct radeonfb_softc *sc, uint32_t idx)
   1121 {
   1122 	int		s;
   1123 	uint32_t	val;
   1124 
   1125 	s = splhigh();
   1126 	radeonfb_put32(sc, RADEON_MM_INDEX, idx);
   1127 	val = radeonfb_get32(sc, RADEON_MM_DATA);
   1128 	splx(s);
   1129 
   1130 	return (val);
   1131 }
   1132 
   1133 void
   1134 radeonfb_putindex(struct radeonfb_softc *sc, uint32_t idx, uint32_t val)
   1135 {
   1136 	int	s;
   1137 
   1138 	s = splhigh();
   1139 	radeonfb_put32(sc, RADEON_MM_INDEX, idx);
   1140 	radeonfb_put32(sc, RADEON_MM_DATA, val);
   1141 	splx(s);
   1142 }
   1143 
   1144 void
   1145 radeonfb_maskindex(struct radeonfb_softc *sc, uint32_t idx,
   1146     uint32_t andmask, uint32_t ormask)
   1147 {
   1148 	int		s;
   1149 	uint32_t	val;
   1150 
   1151 	s = splhigh();
   1152 	radeonfb_put32(sc, RADEON_MM_INDEX, idx);
   1153 	val = radeonfb_get32(sc, RADEON_MM_DATA);
   1154 	val = (val & andmask) | ormask;
   1155 	radeonfb_put32(sc, RADEON_MM_DATA, val);
   1156 	splx(s);
   1157 }
   1158 
   1159 uint32_t
   1160 radeonfb_getpll(struct radeonfb_softc *sc, uint32_t idx)
   1161 {
   1162 	int		s;
   1163 	uint32_t	val;
   1164 
   1165 	s = splhigh();
   1166 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_INDEX, idx & 0x3f);
   1167 	val = radeonfb_get32(sc, RADEON_CLOCK_CNTL_DATA);
   1168 	if (HAS_R300CG(sc))
   1169 		radeonfb_r300cg_workaround(sc);
   1170 	splx(s);
   1171 
   1172 	return (val);
   1173 }
   1174 
   1175 void
   1176 radeonfb_putpll(struct radeonfb_softc *sc, uint32_t idx, uint32_t val)
   1177 {
   1178 	int	s;
   1179 
   1180 	s = splhigh();
   1181 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_INDEX, (idx & 0x3f) |
   1182 	    RADEON_PLL_WR_EN);
   1183 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_DATA, val);
   1184 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_INDEX, 0);
   1185 	splx(s);
   1186 }
   1187 
   1188 void
   1189 radeonfb_maskpll(struct radeonfb_softc *sc, uint32_t idx,
   1190     uint32_t andmask, uint32_t ormask)
   1191 {
   1192 	int		s;
   1193 	uint32_t	val;
   1194 
   1195 	s = splhigh();
   1196 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_INDEX, (idx & 0x3f) |
   1197 		RADEON_PLL_WR_EN);
   1198 	val = radeonfb_get32(sc, RADEON_CLOCK_CNTL_DATA);
   1199 	val = (val & andmask) | ormask;
   1200 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_DATA, val);
   1201 	radeonfb_put32(sc, RADEON_CLOCK_CNTL_INDEX, 0);
   1202 	splx(s);
   1203 }
   1204 
   1205 int
   1206 radeonfb_scratch_test(struct radeonfb_softc *sc, int reg, uint32_t v)
   1207 {
   1208 	uint32_t	saved;
   1209 
   1210 	saved = GET32(sc, reg);
   1211 	PUT32(sc, reg, v);
   1212 	if (GET32(sc, reg) != v) {
   1213 		return -1;
   1214 	}
   1215 	PUT32(sc, reg, saved);
   1216 	return 0;
   1217 }
   1218 
   1219 uintmax_t
   1220 radeonfb_getprop_num(struct radeonfb_softc *sc, const char *name,
   1221     uintmax_t defval)
   1222 {
   1223 	prop_number_t	pn;
   1224 	pn = prop_dictionary_get(device_properties(&sc->sc_dev), name);
   1225 	if (pn == NULL) {
   1226 		return defval;
   1227 	}
   1228 	KASSERT(prop_object_type(pn) == PROP_TYPE_NUMBER);
   1229 	return (prop_number_integer_value(pn));
   1230 }
   1231 
   1232 int
   1233 radeonfb_getclocks(struct radeonfb_softc *sc)
   1234 {
   1235 	bus_addr_t	ptr;
   1236 	int		refclk = 0;
   1237 	int		refdiv = 0;
   1238 	int		minpll = 0;
   1239 	int		maxpll = 0;
   1240 
   1241 	/* load initial property values if port/board provides them */
   1242 	refclk = radeonfb_getprop_num(sc, "refclk", 0) & 0xffff;
   1243 	refdiv = radeonfb_getprop_num(sc, "refdiv", 0) & 0xffff;
   1244 	minpll = radeonfb_getprop_num(sc, "minpll", 0) & 0xffffffffU;
   1245 	maxpll = radeonfb_getprop_num(sc, "maxpll", 0) & 0xffffffffU;
   1246 
   1247 	if (refclk && refdiv && minpll && maxpll)
   1248 		goto dontprobe;
   1249 
   1250 	if (!sc->sc_biossz) {
   1251 		/* no BIOS */
   1252 		aprint_verbose("%s: No video BIOS, using default clocks\n",
   1253 		    XNAME(sc));
   1254 		if (IS_IGP(sc))
   1255 			refclk = refclk ? refclk : 1432;
   1256 		else
   1257 			refclk = refclk ? refclk : 2700;
   1258 		refdiv = refdiv ? refdiv : 12;
   1259 		minpll = minpll ? minpll : 12500;
   1260 		maxpll = maxpll ? maxpll : 35000;
   1261 	} else if (IS_ATOM(sc)) {
   1262 		/* ATOM BIOS */
   1263 		ptr = GETBIOS16(sc, 0x48);
   1264 		ptr = GETBIOS16(sc, ptr + 32);	/* aka MasterDataStart */
   1265 		ptr = GETBIOS16(sc, ptr + 12);	/* pll info block */
   1266 		refclk = refclk ? refclk : GETBIOS16(sc, ptr + 82);
   1267 		minpll = minpll ? minpll : GETBIOS16(sc, ptr + 78);
   1268 		maxpll = maxpll ? maxpll : GETBIOS16(sc, ptr + 32);
   1269 		/*
   1270 		 * ATOM BIOS doesn't supply a reference divider, so we
   1271 		 * have to probe for it.
   1272 		 */
   1273 		if (refdiv < 2)
   1274 			refdiv = GETPLL(sc, RADEON_PPLL_REF_DIV) &
   1275 			    RADEON_PPLL_REF_DIV_MASK;
   1276 		/*
   1277 		 * if probe is zero, just assume one that should work
   1278 		 * for most parts
   1279 		 */
   1280 		if (refdiv < 2)
   1281 			refdiv = 12;
   1282 
   1283 	} else {
   1284 		/* Legacy BIOS */
   1285 		ptr = GETBIOS16(sc, 0x48);
   1286 		ptr = GETBIOS16(sc, ptr + 0x30);
   1287 		refclk = refclk ? refclk : GETBIOS16(sc, ptr + 0x0E);
   1288 		refdiv = refdiv ? refdiv : GETBIOS16(sc, ptr + 0x10);
   1289 		minpll = minpll ? minpll : GETBIOS32(sc, ptr + 0x12);
   1290 		maxpll = maxpll ? maxpll : GETBIOS32(sc, ptr + 0x16);
   1291 	}
   1292 
   1293 
   1294 dontprobe:
   1295 	sc->sc_refclk = refclk * 10;
   1296 	sc->sc_refdiv = refdiv;
   1297 	sc->sc_minpll = minpll * 10;
   1298 	sc->sc_maxpll = maxpll * 10;
   1299 	return 0;
   1300 }
   1301 
   1302 int
   1303 radeonfb_calc_dividers(struct radeonfb_softc *sc, uint32_t dotclock,
   1304     uint32_t *postdivbit, uint32_t *feedbackdiv)
   1305 {
   1306 	int		i;
   1307 	uint32_t	outfreq;
   1308 	int		div;
   1309 
   1310 	DPRINTF(("dot clock: %u\n", dotclock));
   1311 	for (i = 0; (div = radeonfb_dividers[i].divider) != 0; i++) {
   1312 		outfreq = div * dotclock;
   1313 		if ((outfreq >= sc->sc_minpll) &&
   1314 		    (outfreq <= sc->sc_maxpll)) {
   1315 			DPRINTF(("outfreq: %u\n", outfreq));
   1316 			*postdivbit =
   1317 			    ((uint32_t)radeonfb_dividers[i].mask << 16);
   1318 			DPRINTF(("post divider: %d (mask %x)\n", div,
   1319 				    *postdivbit));
   1320 			break;
   1321 		}
   1322 	}
   1323 
   1324 	if (div == 0)
   1325 		return 1;
   1326 
   1327 	*feedbackdiv = DIVIDE(sc->sc_refdiv * outfreq, sc->sc_refclk);
   1328 	DPRINTF(("feedback divider: %d\n", *feedbackdiv));
   1329 	return 0;
   1330 }
   1331 
   1332 #if 0
   1333 #ifdef RADEON_DEBUG
   1334 static void
   1335 dump_buffer(const char *pfx, void *buffer, unsigned int size)
   1336 {
   1337 	char		asc[17];
   1338 	unsigned	ptr = (unsigned)buffer;
   1339 	char		*start = (char *)(ptr & ~0xf);
   1340 	char		*end = (char *)(ptr + size);
   1341 
   1342 	end = (char *)(((unsigned)end + 0xf) & ~0xf);
   1343 
   1344 	if (pfx == NULL) {
   1345 		pfx = "";
   1346 	}
   1347 
   1348 	while (start < end) {
   1349 		unsigned offset = (unsigned)start & 0xf;
   1350 		if (offset == 0) {
   1351 			printf("%s%x: ", pfx, (unsigned)start);
   1352 		}
   1353 		if (((unsigned)start < ptr) ||
   1354 		    ((unsigned)start >= (ptr + size))) {
   1355 			printf("  ");
   1356 			asc[offset] = ' ';
   1357 		} else {
   1358 			printf("%02x", *(unsigned char *)start);
   1359 			if ((*start >= ' ') && (*start <= '~')) {
   1360 				asc[offset] = *start;
   1361 			} else {
   1362 				asc[offset] = '.';
   1363 			}
   1364 		}
   1365 		asc[offset + 1] = 0;
   1366 		if (offset % 2) {
   1367 			printf(" ");
   1368 		}
   1369 		if (offset == 15) {
   1370 			printf(" %s\n", asc);
   1371 		}
   1372 		start++;
   1373 	}
   1374 }
   1375 #endif
   1376 #endif
   1377 
   1378 int
   1379 radeonfb_getconnectors(struct radeonfb_softc *sc)
   1380 {
   1381 	int	i;
   1382 	int	found = 0;
   1383 
   1384 	for (i = 0; i < 2; i++) {
   1385 		sc->sc_ports[i].rp_mon_type = RADEON_MT_UNKNOWN;
   1386 		sc->sc_ports[i].rp_ddc_type = RADEON_DDC_NONE;
   1387 		sc->sc_ports[i].rp_dac_type = RADEON_DAC_UNKNOWN;
   1388 		sc->sc_ports[i].rp_conn_type = RADEON_CONN_NONE;
   1389 		sc->sc_ports[i].rp_tmds_type = RADEON_TMDS_UNKNOWN;
   1390 	}
   1391 
   1392 	/*
   1393 	 * This logic is borrowed from Xorg's radeon driver.
   1394 	 */
   1395 	if (!sc->sc_biossz)
   1396 		goto nobios;
   1397 
   1398 	if (IS_ATOM(sc)) {
   1399 		/* not done yet */
   1400 	} else {
   1401 		uint16_t	ptr;
   1402 		int		port = 0;
   1403 
   1404 		ptr = GETBIOS16(sc, 0x48);
   1405 		ptr = GETBIOS16(sc, ptr + 0x50);
   1406 		for (i = 1; i < 4; i++) {
   1407 			uint16_t	entry;
   1408 			uint8_t		conn, ddc, dac, tmds;
   1409 
   1410 			/*
   1411 			 * Parse the connector table.  From reading the code,
   1412 			 * it appears to made up of 16-bit entries for each
   1413 			 * connector.  The 16-bits are defined as:
   1414 			 *
   1415 			 * bits 12-15	- connector type (0 == end of table)
   1416 			 * bits 8-11	- DDC type
   1417 			 * bits 5-7	- ???
   1418 			 * bit 4	- TMDS type (1 = EXT, 0 = INT)
   1419 			 * bits 1-3	- ???
   1420 			 * bit 0	- DAC, 1 = TVDAC, 0 = primary
   1421 			 */
   1422 			if (!GETBIOS8(sc, ptr + i * 2) && i > 1)
   1423 				break;
   1424 			entry = GETBIOS16(sc, ptr + i * 2);
   1425 
   1426 			conn = (entry >> 12) & 0xf;
   1427 			ddc = (entry >> 8) & 0xf;
   1428 			dac = (entry & 0x1) ? RADEON_DAC_TVDAC :
   1429 			    RADEON_DAC_PRIMARY;
   1430 			tmds = ((entry >> 4) & 0x1) ? RADEON_TMDS_EXT :
   1431 			    RADEON_TMDS_INT;
   1432 
   1433 			if (conn == RADEON_CONN_NONE)
   1434 				continue;	/* no connector */
   1435 
   1436 			if ((found > 0) &&
   1437 			    (sc->sc_ports[port].rp_ddc_type == ddc)) {
   1438 				/* duplicate entry for same connector */
   1439 				continue;
   1440 			}
   1441 
   1442 			/* internal DDC_DVI port gets priority */
   1443 			if ((ddc == RADEON_DDC_DVI) || (port == 1))
   1444 				port = 0;
   1445 			else
   1446 				port = 1;
   1447 
   1448 			sc->sc_ports[port].rp_ddc_type =
   1449 			    ddc > RADEON_DDC_CRT2 ? RADEON_DDC_NONE : ddc;
   1450 			sc->sc_ports[port].rp_dac_type = dac;
   1451 			sc->sc_ports[port].rp_conn_type =
   1452 			    min(conn, RADEON_CONN_UNSUPPORTED) ;
   1453 
   1454 			sc->sc_ports[port].rp_tmds_type = tmds;
   1455 
   1456 			if ((conn != RADEON_CONN_DVI_I) &&
   1457 			    (conn != RADEON_CONN_DVI_D) &&
   1458 			    (tmds == RADEON_TMDS_INT))
   1459 				sc->sc_ports[port].rp_tmds_type =
   1460 				    RADEON_TMDS_UNKNOWN;
   1461 
   1462 			found += (port + 1);
   1463 		}
   1464 	}
   1465 
   1466 nobios:
   1467 	if (!found) {
   1468 		DPRINTF(("No connector info in BIOS!\n"));
   1469 		/* default, port 0 = internal TMDS, port 1 = CRT */
   1470 		sc->sc_ports[0].rp_mon_type = RADEON_MT_UNKNOWN;
   1471 		sc->sc_ports[0].rp_ddc_type = RADEON_DDC_DVI;
   1472 		sc->sc_ports[0].rp_dac_type = RADEON_DAC_TVDAC;
   1473 		sc->sc_ports[0].rp_conn_type = RADEON_CONN_DVI_D;
   1474 		sc->sc_ports[0].rp_tmds_type = RADEON_TMDS_INT;
   1475 
   1476 		sc->sc_ports[1].rp_mon_type = RADEON_MT_UNKNOWN;
   1477 		sc->sc_ports[1].rp_ddc_type = RADEON_DDC_VGA;
   1478 		sc->sc_ports[1].rp_dac_type = RADEON_DAC_PRIMARY;
   1479 		sc->sc_ports[1].rp_conn_type = RADEON_CONN_CRT;
   1480 		sc->sc_ports[1].rp_tmds_type = RADEON_TMDS_EXT;
   1481 	}
   1482 
   1483 	/*
   1484 	 * Fixup for RS300/RS350/RS400 chips, that lack a primary DAC.
   1485 	 * these chips should use TVDAC for the VGA port.
   1486 	 */
   1487 	if (HAS_SDAC(sc)) {
   1488 		if (sc->sc_ports[0].rp_conn_type == RADEON_CONN_CRT) {
   1489 			sc->sc_ports[0].rp_dac_type = RADEON_DAC_TVDAC;
   1490 			sc->sc_ports[1].rp_dac_type = RADEON_DAC_PRIMARY;
   1491 		} else {
   1492 			sc->sc_ports[1].rp_dac_type = RADEON_DAC_TVDAC;
   1493 			sc->sc_ports[0].rp_dac_type = RADEON_DAC_PRIMARY;
   1494 		}
   1495 	} else if (!HAS_CRTC2(sc)) {
   1496 		sc->sc_ports[0].rp_dac_type = RADEON_DAC_PRIMARY;
   1497 	}
   1498 
   1499 	for (i = 0; i < 2; i++) {
   1500 		char	edid[128];
   1501 		uint8_t	ddc;
   1502 		struct edid_info *eip = &sc->sc_ports[i].rp_edid;
   1503 
   1504 		DPRINTF(("Port #%d:\n", i));
   1505 		DPRINTF(("    conn = %d\n", sc->sc_ports[i].rp_conn_type));
   1506 		DPRINTF(("    ddc = %d\n", sc->sc_ports[i].rp_ddc_type));
   1507 		DPRINTF(("    dac = %d\n", sc->sc_ports[i].rp_dac_type));
   1508 		DPRINTF(("    tmds = %d\n", sc->sc_ports[i].rp_tmds_type));
   1509 
   1510 		sc->sc_ports[i].rp_edid_valid = 0;
   1511 		ddc = sc->sc_ports[i].rp_ddc_type;
   1512 		if (ddc != RADEON_DDC_NONE) {
   1513 			if ((radeonfb_i2c_read_edid(sc, ddc, edid) == 0) &&
   1514 			    (edid_parse(edid, eip) == 0)) {
   1515 				sc->sc_ports[i].rp_edid_valid = 1;
   1516 				edid_print(eip);
   1517 			}
   1518 		}
   1519 	}
   1520 
   1521 	return found;
   1522 }
   1523 
   1524 int
   1525 radeonfb_gettmds(struct radeonfb_softc *sc)
   1526 {
   1527 	int	i;
   1528 
   1529 	if (!sc->sc_biossz) {
   1530 		goto nobios;
   1531 	}
   1532 
   1533 	if (IS_ATOM(sc)) {
   1534 		/* XXX: not done yet */
   1535 	} else {
   1536 		uint16_t	ptr;
   1537 		int		n;
   1538 
   1539 		ptr = GETBIOS16(sc, 0x48);
   1540 		ptr = GETBIOS16(sc, ptr + 0x34);
   1541 		DPRINTF(("DFP table revision %d\n", GETBIOS8(sc, ptr)));
   1542 		if (GETBIOS8(sc, ptr) == 3) {
   1543 			/* revision three table */
   1544 			n = GETBIOS8(sc, ptr + 5) + 1;
   1545 			n = min(n, 4);
   1546 
   1547 			memset(sc->sc_tmds_pll, 0, sizeof (sc->sc_tmds_pll));
   1548 			for (i = 0; i < n; i++) {
   1549 				sc->sc_tmds_pll[i].rtp_pll = GETBIOS32(sc,
   1550 				    ptr + i * 10 + 8);
   1551 				sc->sc_tmds_pll[i].rtp_freq = GETBIOS16(sc,
   1552 				    ptr + i * 10 + 0x10);
   1553 				DPRINTF(("TMDS_PLL dot clock %d pll %x\n",
   1554 					    sc->sc_tmds_pll[i].rtp_freq,
   1555 					    sc->sc_tmds_pll[i].rtp_pll));
   1556 			}
   1557 			return 0;
   1558 		}
   1559 	}
   1560 
   1561 nobios:
   1562 	DPRINTF(("no suitable DFP table present\n"));
   1563 	for (i = 0;
   1564 	     i < sizeof (radeonfb_tmds_pll) / sizeof (radeonfb_tmds_pll[0]);
   1565 	     i++) {
   1566 		int	j;
   1567 
   1568 		if (radeonfb_tmds_pll[i].family != sc->sc_family)
   1569 			continue;
   1570 
   1571 		for (j = 0; j < 4; j++) {
   1572 			sc->sc_tmds_pll[j] = radeonfb_tmds_pll[i].plls[j];
   1573 			DPRINTF(("TMDS_PLL dot clock %d pll %x\n",
   1574 				    sc->sc_tmds_pll[j].rtp_freq,
   1575 				    sc->sc_tmds_pll[j].rtp_pll));
   1576 		}
   1577 		return 0;
   1578 	}
   1579 
   1580 	return -1;
   1581 }
   1582 
   1583 const struct videomode *
   1584 radeonfb_modelookup(const char *name)
   1585 {
   1586 	int	i;
   1587 
   1588 	for (i = 0; i < videomode_count; i++)
   1589 		if (!strcmp(name, videomode_list[i].name))
   1590 			return &videomode_list[i];
   1591 
   1592 	return NULL;
   1593 }
   1594 
   1595 void
   1596 radeonfb_pllwriteupdate(struct radeonfb_softc *sc, int crtc)
   1597 {
   1598 	if (crtc) {
   1599 		while (GETPLL(sc, RADEON_P2PLL_REF_DIV) &
   1600 		    RADEON_P2PLL_ATOMIC_UPDATE_R);
   1601 		SETPLL(sc, RADEON_P2PLL_REF_DIV, RADEON_P2PLL_ATOMIC_UPDATE_W);
   1602 	} else {
   1603 		while (GETPLL(sc, RADEON_PPLL_REF_DIV) &
   1604 		    RADEON_PPLL_ATOMIC_UPDATE_R);
   1605 		SETPLL(sc, RADEON_PPLL_REF_DIV, RADEON_PPLL_ATOMIC_UPDATE_W);
   1606 	}
   1607 }
   1608 
   1609 void
   1610 radeonfb_pllwaitatomicread(struct radeonfb_softc *sc, int crtc)
   1611 {
   1612 	int	i;
   1613 
   1614 	for (i = 10000; i; i--) {
   1615 		if (crtc) {
   1616 			if (GETPLL(sc, RADEON_P2PLL_REF_DIV) &
   1617 			    RADEON_P2PLL_ATOMIC_UPDATE_R)
   1618 				break;
   1619 		} else {
   1620 			if (GETPLL(sc, RADEON_PPLL_REF_DIV) &
   1621 			    RADEON_PPLL_ATOMIC_UPDATE_R)
   1622 				break;
   1623 		}
   1624 	}
   1625 }
   1626 
   1627 void
   1628 radeonfb_program_vclk(struct radeonfb_softc *sc, int dotclock, int crtc)
   1629 {
   1630 	uint32_t	pbit = 0;
   1631 	uint32_t	feed = 0;
   1632 	uint32_t	data;
   1633 #if 1
   1634 	int		i;
   1635 #endif
   1636 
   1637 	radeonfb_calc_dividers(sc, dotclock, &pbit, &feed);
   1638 
   1639 	if (crtc == 0) {
   1640 
   1641 		/* XXXX: mobility workaround missing */
   1642 		/* XXXX: R300 stuff missing */
   1643 
   1644 		PATCHPLL(sc, RADEON_VCLK_ECP_CNTL,
   1645 		    RADEON_VCLK_SRC_SEL_CPUCLK,
   1646 		    ~RADEON_VCLK_SRC_SEL_MASK);
   1647 
   1648 		/* put vclk into reset, use atomic updates */
   1649 		SETPLL(sc, RADEON_PPLL_CNTL,
   1650 		    RADEON_PPLL_REFCLK_SEL |
   1651 		    RADEON_PPLL_FBCLK_SEL |
   1652 		    RADEON_PPLL_RESET |
   1653 		    RADEON_PPLL_ATOMIC_UPDATE_EN |
   1654 		    RADEON_PPLL_VGA_ATOMIC_UPDATE_EN);
   1655 
   1656 		/* select clock 3 */
   1657 #if 0
   1658 		PATCH32(sc, RADEON_CLOCK_CNTL_INDEX, RADEON_PLL_DIV_SEL,
   1659 		    ~RADEON_PLL_DIV_SEL);
   1660 #else
   1661 		PATCH32(sc, RADEON_CLOCK_CNTL_INDEX, 0,
   1662 		    ~RADEON_PLL_DIV_SEL);
   1663 #endif
   1664 
   1665 		/* XXX: R300 family -- program divider differently? */
   1666 
   1667 		/* program reference divider */
   1668 		PATCHPLL(sc, RADEON_PPLL_REF_DIV, sc->sc_refdiv,
   1669 		    ~RADEON_PPLL_REF_DIV_MASK);
   1670 		PRINTPLL(RADEON_PPLL_REF_DIV);
   1671 
   1672 #if 0
   1673 		data = GETPLL(sc, RADEON_PPLL_DIV_3);
   1674 		data &= ~(RADEON_PPLL_FB3_DIV_MASK |
   1675 		    RADEON_PPLL_POST3_DIV_MASK);
   1676 		data |= pbit;
   1677 		data |= (feed & RADEON_PPLL_FB3_DIV_MASK);
   1678 		PUTPLL(sc, RADEON_PPLL_DIV_3, data);
   1679 #else
   1680 		for (i = 0; i < 4; i++) {
   1681 		}
   1682 #endif
   1683 
   1684 		/* use the atomic update */
   1685 		radeonfb_pllwriteupdate(sc, crtc);
   1686 
   1687 		/* and wait for it to complete */
   1688 		radeonfb_pllwaitatomicread(sc, crtc);
   1689 
   1690 		/* program HTOTAL (why?) */
   1691 		PUTPLL(sc, RADEON_HTOTAL_CNTL, 0);
   1692 
   1693 		/* drop reset */
   1694 		CLRPLL(sc, RADEON_PPLL_CNTL,
   1695 		    RADEON_PPLL_RESET | RADEON_PPLL_SLEEP |
   1696 		    RADEON_PPLL_ATOMIC_UPDATE_EN |
   1697 		    RADEON_PPLL_VGA_ATOMIC_UPDATE_EN);
   1698 
   1699 		PRINTPLL(RADEON_PPLL_CNTL);
   1700 
   1701 		/* give clock time to lock */
   1702 		delay(50000);
   1703 
   1704 		PATCHPLL(sc, RADEON_VCLK_ECP_CNTL,
   1705 		    RADEON_VCLK_SRC_SEL_PPLLCLK,
   1706 		    ~RADEON_VCLK_SRC_SEL_MASK);
   1707 
   1708 	} else {
   1709 
   1710 		PATCHPLL(sc, RADEON_PIXCLKS_CNTL,
   1711 		    RADEON_PIX2CLK_SRC_SEL_CPUCLK,
   1712 		    ~RADEON_PIX2CLK_SRC_SEL_MASK);
   1713 
   1714 		/* put vclk into reset, use atomic updates */
   1715 		SETPLL(sc, RADEON_P2PLL_CNTL,
   1716 		    RADEON_P2PLL_RESET |
   1717 		    RADEON_P2PLL_ATOMIC_UPDATE_EN |
   1718 		    RADEON_P2PLL_VGA_ATOMIC_UPDATE_EN);
   1719 
   1720 		/* XXX: R300 family -- program divider differently? */
   1721 
   1722 		/* program reference divider */
   1723 		PATCHPLL(sc, RADEON_P2PLL_REF_DIV, sc->sc_refdiv,
   1724 		    ~RADEON_P2PLL_REF_DIV_MASK);
   1725 
   1726 		/* program feedback and post dividers */
   1727 		data = GETPLL(sc, RADEON_P2PLL_DIV_0);
   1728 		data &= ~(RADEON_P2PLL_FB0_DIV_MASK |
   1729 		    RADEON_P2PLL_POST0_DIV_MASK);
   1730 		data |= pbit;
   1731 		data |= (feed & RADEON_P2PLL_FB0_DIV_MASK);
   1732 		PUTPLL(sc, RADEON_P2PLL_DIV_0, data);
   1733 
   1734 		/* use the atomic update */
   1735 		radeonfb_pllwriteupdate(sc, crtc);
   1736 
   1737 		/* and wait for it to complete */
   1738 		radeonfb_pllwaitatomicread(sc, crtc);
   1739 
   1740 		/* program HTOTAL (why?) */
   1741 		PUTPLL(sc, RADEON_HTOTAL2_CNTL, 0);
   1742 
   1743 		/* drop reset */
   1744 		CLRPLL(sc, RADEON_P2PLL_CNTL,
   1745 		    RADEON_P2PLL_RESET | RADEON_P2PLL_SLEEP |
   1746 		    RADEON_P2PLL_ATOMIC_UPDATE_EN |
   1747 		    RADEON_P2PLL_VGA_ATOMIC_UPDATE_EN);
   1748 
   1749 		/* allow time for clock to lock */
   1750 		delay(50000);
   1751 
   1752 		PATCHPLL(sc, RADEON_PIXCLKS_CNTL,
   1753 		    RADEON_PIX2CLK_SRC_SEL_P2PLLCLK,
   1754 		    ~RADEON_PIX2CLK_SRC_SEL_MASK);
   1755 	}
   1756 	PRINTREG(RADEON_CRTC_MORE_CNTL);
   1757 }
   1758 
   1759 void
   1760 radeonfb_modeswitch(struct radeonfb_display *dp)
   1761 {
   1762 	struct radeonfb_softc	*sc = dp->rd_softc;
   1763 	int			i;
   1764 
   1765 	/* blank the display while we switch modes */
   1766 	//radeonfb_blank(dp, 1);
   1767 
   1768 #if 0
   1769 	SET32(sc, RADEON_CRTC_EXT_CNTL,
   1770 	    RADEON_CRTC_VSYNC_DIS | RADEON_CRTC_HSYNC_DIS |
   1771 	    RADEON_CRTC_DISPLAY_DIS /* | RADEON_CRTC_DISP_REQ_EN_B */);
   1772 #endif
   1773 
   1774 	/* these registers might get in the way... */
   1775 	PUT32(sc, RADEON_OVR_CLR, 0);
   1776 	PUT32(sc, RADEON_OVR_WID_LEFT_RIGHT, 0);
   1777 	PUT32(sc, RADEON_OVR_WID_TOP_BOTTOM, 0);
   1778 	PUT32(sc, RADEON_OV0_SCALE_CNTL, 0);
   1779 	PUT32(sc, RADEON_SUBPIC_CNTL, 0);
   1780 	PUT32(sc, RADEON_VIPH_CONTROL, 0);
   1781 	PUT32(sc, RADEON_I2C_CNTL_1, 0);
   1782 	PUT32(sc, RADEON_GEN_INT_CNTL, 0);
   1783 	PUT32(sc, RADEON_CAP0_TRIG_CNTL, 0);
   1784 	PUT32(sc, RADEON_CAP1_TRIG_CNTL, 0);
   1785 	PUT32(sc, RADEON_SURFACE_CNTL, 0);
   1786 
   1787 	for (i = 0; i < dp->rd_ncrtcs; i++)
   1788 		radeonfb_setcrtc(dp, i);
   1789 
   1790 	/* activate the display */
   1791 	//radeonfb_blank(dp, 0);
   1792 }
   1793 
   1794 void
   1795 radeonfb_setcrtc(struct radeonfb_display *dp, int index)
   1796 {
   1797 	int			crtc;
   1798 	struct videomode	*mode;
   1799 	struct radeonfb_softc	*sc;
   1800 	struct radeonfb_crtc	*cp;
   1801 	uint32_t		v;
   1802 	uint32_t		gencntl;
   1803 	uint32_t		htotaldisp;
   1804 	uint32_t		hsyncstrt;
   1805 	uint32_t		vtotaldisp;
   1806 	uint32_t		vsyncstrt;
   1807 	uint32_t		fphsyncstrt;
   1808 	uint32_t		fpvsyncstrt;
   1809 	uint32_t		fphtotaldisp;
   1810 	uint32_t		fpvtotaldisp;
   1811 	uint32_t		pitch;
   1812 
   1813 	sc = dp->rd_softc;
   1814 	cp = &dp->rd_crtcs[index];
   1815 	crtc = cp->rc_number;
   1816 	mode = &cp->rc_videomode;
   1817 
   1818 #if 1
   1819 	pitch = (((dp->rd_virtx * dp->rd_bpp) + ((dp->rd_bpp * 8) - 1)) /
   1820 	    (dp->rd_bpp * 8));
   1821 #else
   1822 	pitch = (((sc->sc_maxx * sc->sc_maxbpp) + ((sc->sc_maxbpp * 8) - 1)) /
   1823 	    (sc->sc_maxbpp * 8));
   1824 #endif
   1825 	//pitch = pitch | (pitch << 16);
   1826 
   1827 	switch (crtc) {
   1828 	case 0:
   1829 		gencntl = RADEON_CRTC_GEN_CNTL;
   1830 		htotaldisp = RADEON_CRTC_H_TOTAL_DISP;
   1831 		hsyncstrt = RADEON_CRTC_H_SYNC_STRT_WID;
   1832 		vtotaldisp = RADEON_CRTC_V_TOTAL_DISP;
   1833 		vsyncstrt = RADEON_CRTC_V_SYNC_STRT_WID;
   1834 		fpvsyncstrt = RADEON_FP_V_SYNC_STRT_WID;
   1835 		fphsyncstrt = RADEON_FP_H_SYNC_STRT_WID;
   1836 		fpvtotaldisp = RADEON_FP_CRTC_V_TOTAL_DISP;
   1837 		fphtotaldisp = RADEON_FP_CRTC_H_TOTAL_DISP;
   1838 		break;
   1839 	case 1:
   1840 		gencntl = RADEON_CRTC2_GEN_CNTL;
   1841 		htotaldisp = RADEON_CRTC2_H_TOTAL_DISP;
   1842 		hsyncstrt = RADEON_CRTC2_H_SYNC_STRT_WID;
   1843 		vtotaldisp = RADEON_CRTC2_V_TOTAL_DISP;
   1844 		vsyncstrt = RADEON_CRTC2_V_SYNC_STRT_WID;
   1845 		fpvsyncstrt = RADEON_FP_V2_SYNC_STRT_WID;
   1846 		fphsyncstrt = RADEON_FP_H2_SYNC_STRT_WID;
   1847 		fpvtotaldisp = RADEON_FP_CRTC2_V_TOTAL_DISP;
   1848 		fphtotaldisp = RADEON_FP_CRTC2_H_TOTAL_DISP;
   1849 		break;
   1850 	default:
   1851 		panic("Bad CRTC!");
   1852 		break;
   1853 	}
   1854 
   1855 	/*
   1856 	 * CRTC_GEN_CNTL - depth, accelerator mode, etc.
   1857 	 */
   1858 	/* only bother with 32bpp and 8bpp */
   1859 	v = dp->rd_format << RADEON_CRTC_PIX_WIDTH_SHIFT;
   1860 
   1861 	if (crtc == 1) {
   1862 		v |= RADEON_CRTC2_CRT2_ON | RADEON_CRTC2_EN;
   1863 	} else {
   1864 		v |= RADEON_CRTC_EXT_DISP_EN | RADEON_CRTC_EN;
   1865 	}
   1866 
   1867 	if (mode->flags & VID_DBLSCAN)
   1868 		v |= RADEON_CRTC2_DBL_SCAN_EN;
   1869 
   1870 	if (mode->flags & VID_INTERLACE)
   1871 		v |= RADEON_CRTC2_INTERLACE_EN;
   1872 
   1873 	if (mode->flags & VID_CSYNC) {
   1874 		v |= RADEON_CRTC2_CSYNC_EN;
   1875 		if (crtc == 1)
   1876 			v |= RADEON_CRTC2_VSYNC_TRISTAT;
   1877 	}
   1878 
   1879 	PUT32(sc, gencntl, v);
   1880 	DPRINTF(("CRTC%s_GEN_CNTL = %08x\n", crtc ? "2" : "", v));
   1881 
   1882 	/*
   1883 	 * CRTC_EXT_CNTL - preserve disable flags, set ATI linear and EXT_CNT
   1884 	 */
   1885 	v = GET32(sc, RADEON_CRTC_EXT_CNTL);
   1886 	if (crtc == 0) {
   1887 		v &= (RADEON_CRTC_VSYNC_DIS | RADEON_CRTC_HSYNC_DIS |
   1888 		    RADEON_CRTC_DISPLAY_DIS);
   1889 		v |= RADEON_XCRT_CNT_EN | RADEON_VGA_ATI_LINEAR;
   1890 		if (mode->flags & VID_CSYNC)
   1891 			v |= RADEON_CRTC_VSYNC_TRISTAT;
   1892 	}
   1893 	/* unconditional turn on CRT, in case first CRTC is DFP */
   1894 	v |= RADEON_CRTC_CRT_ON;
   1895 	PUT32(sc, RADEON_CRTC_EXT_CNTL, v);
   1896 	PRINTREG(RADEON_CRTC_EXT_CNTL);
   1897 
   1898 	/*
   1899 	 * H_TOTAL_DISP
   1900 	 */
   1901 	v = ((mode->hdisplay / 8) - 1) << 16;
   1902 	v |= (mode->htotal / 8) - 1;
   1903 	PUT32(sc, htotaldisp, v);
   1904 	DPRINTF(("CRTC%s_H_TOTAL_DISP = %08x\n", crtc ? "2" : "", v));
   1905 	PUT32(sc, fphtotaldisp, v);
   1906 	DPRINTF(("FP_H%s_TOTAL_DISP = %08x\n", crtc ? "2" : "", v));
   1907 
   1908 	/*
   1909 	 * H_SYNC_STRT_WID
   1910 	 */
   1911 	v = (((mode->hsync_end - mode->hsync_start) / 8) << 16);
   1912 	v |= mode->hsync_start;
   1913 	if (mode->flags & VID_NHSYNC)
   1914 		v |= RADEON_CRTC_H_SYNC_POL;
   1915 	PUT32(sc, hsyncstrt, v);
   1916 	DPRINTF(("CRTC%s_H_SYNC_STRT_WID = %08x\n", crtc ? "2" : "", v));
   1917 	PUT32(sc, fphsyncstrt, v);
   1918 	DPRINTF(("FP_H%s_SYNC_STRT_WID = %08x\n", crtc ? "2" : "", v));
   1919 
   1920 	/*
   1921 	 * V_TOTAL_DISP
   1922 	 */
   1923 	v = ((mode->vdisplay - 1) << 16);
   1924 	v |= (mode->vtotal - 1);
   1925 	PUT32(sc, vtotaldisp, v);
   1926 	DPRINTF(("CRTC%s_V_TOTAL_DISP = %08x\n", crtc ? "2" : "", v));
   1927 	PUT32(sc, fpvtotaldisp, v);
   1928 	DPRINTF(("FP_V%s_TOTAL_DISP = %08x\n", crtc ? "2" : "", v));
   1929 
   1930 	/*
   1931 	 * V_SYNC_STRT_WID
   1932 	 */
   1933 	v = ((mode->vsync_end - mode->vsync_start) << 16);
   1934 	v |= (mode->vsync_start - 1);
   1935 	if (mode->flags & VID_NVSYNC)
   1936 		v |= RADEON_CRTC_V_SYNC_POL;
   1937 	PUT32(sc, vsyncstrt, v);
   1938 	DPRINTF(("CRTC%s_V_SYNC_STRT_WID = %08x\n", crtc ? "2" : "", v));
   1939 	PUT32(sc, fpvsyncstrt, v);
   1940 	DPRINTF(("FP_V%s_SYNC_STRT_WID = %08x\n", crtc ? "2" : "", v));
   1941 
   1942 	radeonfb_program_vclk(sc, mode->dot_clock, crtc);
   1943 
   1944 	switch (crtc) {
   1945 	case 0:
   1946 		PUT32(sc, RADEON_CRTC_OFFSET, 0);
   1947 		PUT32(sc, RADEON_CRTC_OFFSET_CNTL, 0);
   1948 		PUT32(sc, RADEON_CRTC_PITCH, pitch);
   1949 		CLR32(sc, RADEON_DISP_MERGE_CNTL, RADEON_DISP_RGB_OFFSET_EN);
   1950 
   1951 		CLR32(sc, RADEON_CRTC_EXT_CNTL,
   1952 		    RADEON_CRTC_VSYNC_DIS | RADEON_CRTC_HSYNC_DIS |
   1953 		    RADEON_CRTC_DISPLAY_DIS /* | RADEON_CRTC_DISP_REQ_EN_B */);
   1954 		CLR32(sc, RADEON_CRTC_GEN_CNTL, RADEON_CRTC_DISP_REQ_EN_B);
   1955 		PRINTREG(RADEON_CRTC_EXT_CNTL);
   1956 		PRINTREG(RADEON_CRTC_GEN_CNTL);
   1957 		PRINTREG(RADEON_CLOCK_CNTL_INDEX);
   1958 		break;
   1959 
   1960 	case 1:
   1961 		PUT32(sc, RADEON_CRTC2_OFFSET, 0);
   1962 		PUT32(sc, RADEON_CRTC2_OFFSET_CNTL, 0);
   1963 		PUT32(sc, RADEON_CRTC2_PITCH, pitch);
   1964 		CLR32(sc, RADEON_DISP2_MERGE_CNTL, RADEON_DISP2_RGB_OFFSET_EN);
   1965 		CLR32(sc, RADEON_CRTC2_GEN_CNTL,
   1966 		    RADEON_CRTC2_VSYNC_DIS |
   1967 		    RADEON_CRTC2_HSYNC_DIS |
   1968 		    RADEON_CRTC2_DISP_DIS | RADEON_CRTC2_DISP_REQ_EN_B);
   1969 		PRINTREG(RADEON_CRTC2_GEN_CNTL);
   1970 		break;
   1971 	}
   1972 }
   1973 
   1974 int
   1975 radeonfb_isblank(struct radeonfb_display *dp)
   1976 {
   1977 	uint32_t	reg, mask;
   1978 
   1979 	if (dp->rd_crtcs[0].rc_number) {
   1980 		reg = RADEON_CRTC2_GEN_CNTL;
   1981 		mask = RADEON_CRTC2_DISP_DIS;
   1982 	} else {
   1983 		reg = RADEON_CRTC_EXT_CNTL;
   1984 		mask = RADEON_CRTC_DISPLAY_DIS;
   1985 	}
   1986 	return ((GET32(dp->rd_softc, reg) & mask) ? 1 : 0);
   1987 }
   1988 
   1989 void
   1990 radeonfb_blank(struct radeonfb_display *dp, int blank)
   1991 {
   1992 	struct radeonfb_softc	*sc = dp->rd_softc;
   1993 	uint32_t		reg, mask;
   1994 	uint32_t		fpreg, fpval;
   1995 	int			i;
   1996 
   1997 	for (i = 0; i < dp->rd_ncrtcs; i++) {
   1998 
   1999 		if (dp->rd_crtcs[i].rc_number) {
   2000 			reg = RADEON_CRTC2_GEN_CNTL;
   2001 			mask = RADEON_CRTC2_DISP_DIS;
   2002 			fpreg = RADEON_FP2_GEN_CNTL;
   2003 			fpval = RADEON_FP2_ON;
   2004 		} else {
   2005 			reg = RADEON_CRTC_EXT_CNTL;
   2006 			mask = RADEON_CRTC_DISPLAY_DIS;
   2007 			fpreg = RADEON_FP_GEN_CNTL;
   2008 			fpval = RADEON_FP_FPON;
   2009 		}
   2010 
   2011 		if (blank) {
   2012 			SET32(sc, reg, mask);
   2013 			CLR32(sc, fpreg, fpval);
   2014 		} else {
   2015 			CLR32(sc, reg, mask);
   2016 			SET32(sc, fpreg, fpval);
   2017 		}
   2018 	}
   2019 	PRINTREG(RADEON_FP_GEN_CNTL);
   2020 	PRINTREG(RADEON_FP2_GEN_CNTL);
   2021 }
   2022 
   2023 void
   2024 radeonfb_init_screen(void *cookie, struct vcons_screen *scr, int existing,
   2025     long *defattr)
   2026 {
   2027 	struct radeonfb_display *dp = cookie;
   2028 	struct rasops_info *ri = &scr->scr_ri;
   2029 
   2030 	/* initialize font subsystem */
   2031 	wsfont_init();
   2032 
   2033 	DPRINTF(("init screen called, existing %d\n", existing));
   2034 
   2035 	ri->ri_depth = dp->rd_bpp;
   2036 	ri->ri_width = dp->rd_virtx;
   2037 	ri->ri_height = dp->rd_virty;
   2038 	ri->ri_stride = dp->rd_stride;
   2039 	ri->ri_flg = RI_CENTER;
   2040 	ri->ri_bits = (void *)dp->rd_fbptr;
   2041 
   2042 	/* XXX: 32 bpp only */
   2043 	/* this is rgb in "big-endian order..." */
   2044 	ri->ri_rnum = 8;
   2045 	ri->ri_gnum = 8;
   2046 	ri->ri_bnum = 8;
   2047 	ri->ri_rpos = 16;
   2048 	ri->ri_gpos = 8;
   2049 	ri->ri_bpos = 0;
   2050 
   2051 	if (existing) {
   2052 		ri->ri_flg |= RI_CLEAR;
   2053 
   2054 		/* start a modeswitch now */
   2055 		radeonfb_modeswitch(dp);
   2056 	}
   2057 
   2058 	/*
   2059 	 * XXX: font selection should be based on properties, with some
   2060 	 * normal/reasonable default.
   2061 	 */
   2062 	ri->ri_caps = WSSCREEN_WSCOLORS;
   2063 
   2064 	/* initialize and look for an initial font */
   2065 	rasops_init(ri, dp->rd_virty/8, dp->rd_virtx/8);
   2066 
   2067 	rasops_reconfig(ri, dp->rd_virty / ri->ri_font->fontheight,
   2068 		    dp->rd_virtx / ri->ri_font->fontwidth);
   2069 
   2070 	/* enable acceleration */
   2071 	ri->ri_ops.copyrows = radeonfb_copyrows;
   2072 	ri->ri_ops.copycols = radeonfb_copycols;
   2073 	ri->ri_ops.eraserows = radeonfb_eraserows;
   2074 	ri->ri_ops.erasecols = radeonfb_erasecols;
   2075 	ri->ri_ops.allocattr = radeonfb_allocattr;
   2076 	ri->ri_ops.putchar = radeonfb_putchar;
   2077 	ri->ri_ops.cursor = radeonfb_cursor;
   2078 }
   2079 
   2080 void
   2081 radeonfb_set_fbloc(struct radeonfb_softc *sc)
   2082 {
   2083 	uint32_t	gen, ext, gen2 = 0;
   2084 	uint32_t	agploc, aperbase, apersize, mcfbloc;
   2085 
   2086 	gen = GET32(sc, RADEON_CRTC_GEN_CNTL);
   2087 	ext = GET32(sc, RADEON_CRTC_EXT_CNTL);
   2088 	agploc = GET32(sc, RADEON_MC_AGP_LOCATION);
   2089 	aperbase = GET32(sc, RADEON_CONFIG_APER_0_BASE);
   2090 	apersize = GET32(sc, RADEON_CONFIG_APER_SIZE);
   2091 
   2092 	PUT32(sc, RADEON_CRTC_GEN_CNTL, gen | RADEON_CRTC_DISP_REQ_EN_B);
   2093 	PUT32(sc, RADEON_CRTC_EXT_CNTL, ext | RADEON_CRTC_DISPLAY_DIS);
   2094 	//PUT32(sc, RADEON_CRTC_GEN_CNTL, gen | RADEON_CRTC_DISPLAY_DIS);
   2095 	//PUT32(sc, RADEON_CRTC_EXT_CNTL, ext | RADEON_CRTC_DISP_REQ_EN_B);
   2096 
   2097 	if (HAS_CRTC2(sc)) {
   2098 		gen2 = GET32(sc, RADEON_CRTC2_GEN_CNTL);
   2099 		PUT32(sc, RADEON_CRTC2_GEN_CNTL,
   2100 		    gen2 | RADEON_CRTC2_DISP_REQ_EN_B);
   2101 	}
   2102 
   2103 	delay(100000);
   2104 
   2105 	mcfbloc = (aperbase >> 16) |
   2106 	    ((aperbase + (apersize - 1)) & 0xffff0000);
   2107 
   2108 	sc->sc_aperbase = (mcfbloc & 0xffff) << 16;
   2109 	sc->sc_memsz = apersize;
   2110 
   2111 	if (((agploc & 0xffff) << 16) !=
   2112 	    ((mcfbloc & 0xffff0000U) + 0x10000)) {
   2113 		agploc = mcfbloc & 0xffff0000U;
   2114 		agploc |= ((agploc + 0x10000) >> 16);
   2115 	}
   2116 
   2117 	PUT32(sc, RADEON_HOST_PATH_CNTL, 0);
   2118 
   2119 	PUT32(sc, RADEON_MC_FB_LOCATION, mcfbloc);
   2120 	PUT32(sc, RADEON_MC_AGP_LOCATION, agploc);
   2121 
   2122 	DPRINTF(("aperbase = %u\n", aperbase));
   2123 	PRINTREG(RADEON_MC_FB_LOCATION);
   2124 	PRINTREG(RADEON_MC_AGP_LOCATION);
   2125 
   2126 	PUT32(sc, RADEON_DISPLAY_BASE_ADDR, sc->sc_aperbase);
   2127 
   2128 	if (HAS_CRTC2(sc))
   2129 		PUT32(sc, RADEON_DISPLAY2_BASE_ADDR, sc->sc_aperbase);
   2130 
   2131 	PUT32(sc, RADEON_OV0_BASE_ADDR, sc->sc_aperbase);
   2132 
   2133 #if 0
   2134 	/* XXX: what is this AGP garbage? :-) */
   2135 	PUT32(sc, RADEON_AGP_CNTL, 0x00100000);
   2136 #endif
   2137 
   2138 	delay(100000);
   2139 
   2140 	PUT32(sc, RADEON_CRTC_GEN_CNTL, gen);
   2141 	PUT32(sc, RADEON_CRTC_EXT_CNTL, ext);
   2142 
   2143 	if (HAS_CRTC2(sc))
   2144 		PUT32(sc, RADEON_CRTC2_GEN_CNTL, gen2);
   2145 }
   2146 
   2147 void
   2148 radeonfb_init_misc(struct radeonfb_softc *sc)
   2149 {
   2150 	PUT32(sc, RADEON_BUS_CNTL,
   2151 	    RADEON_BUS_MASTER_DIS |
   2152 	    RADEON_BUS_PREFETCH_MODE_ACT |
   2153 	    RADEON_BUS_PCI_READ_RETRY_EN |
   2154 	    RADEON_BUS_PCI_WRT_RETRY_EN |
   2155 	    (3 << RADEON_BUS_RETRY_WS_SHIFT) |
   2156 	    RADEON_BUS_MSTR_RD_MULT |
   2157 	    RADEON_BUS_MSTR_RD_LINE |
   2158 	    RADEON_BUS_RD_DISCARD_EN |
   2159 	    RADEON_BUS_MSTR_DISCONNECT_EN |
   2160 	    RADEON_BUS_READ_BURST);
   2161 
   2162 	PUT32(sc, RADEON_BUS_CNTL1, 0xf0);
   2163 	/* PUT32(sc, RADEON_SEPROM_CNTL1, 0x09ff0000); */
   2164 	PUT32(sc, RADEON_FCP_CNTL, RADEON_FCP0_SRC_GND);
   2165 	PUT32(sc, RADEON_RBBM_CNTL,
   2166 	    (3 << RADEON_RB_SETTLE_SHIFT) |
   2167 	    (4 << RADEON_ABORTCLKS_HI_SHIFT) |
   2168 	    (4 << RADEON_ABORTCLKS_CP_SHIFT) |
   2169 	    (4 << RADEON_ABORTCLKS_CFIFO_SHIFT));
   2170 
   2171 	/* XXX: figure out what these mean! */
   2172 	PUT32(sc, RADEON_AGP_CNTL, 0x00100000);
   2173 	PUT32(sc, RADEON_HOST_PATH_CNTL, 0);
   2174 	//PUT32(sc, RADEON_DISP_MISC_CNTL, 0x5bb00400);
   2175 
   2176 	PUT32(sc, RADEON_GEN_INT_CNTL, 0);
   2177 	PUT32(sc, RADEON_GEN_INT_STATUS, GET32(sc, RADEON_GEN_INT_STATUS));
   2178 }
   2179 
   2180 /*
   2181  * This loads a linear color map for true color.
   2182  */
   2183 void
   2184 radeonfb_init_palette(struct radeonfb_softc *sc, int crtc)
   2185 {
   2186 	int		i;
   2187 	uint32_t	vclk;
   2188 
   2189 #define	DAC_WIDTH ((1 << 10) - 1)
   2190 #define	CLUT_WIDTH ((1 << 8) - 1)
   2191 #define	CLUT_COLOR(i)      ((i * DAC_WIDTH * 2 / CLUT_WIDTH + 1) / 2)
   2192 
   2193 	vclk = GETPLL(sc, RADEON_VCLK_ECP_CNTL);
   2194 	PUTPLL(sc, RADEON_VCLK_ECP_CNTL, vclk & ~RADEON_PIXCLK_DAC_ALWAYS_ONb);
   2195 
   2196 	if (crtc)
   2197 		SET32(sc, RADEON_DAC_CNTL2, RADEON_DAC2_PALETTE_ACC_CTL);
   2198 	else
   2199 		CLR32(sc, RADEON_DAC_CNTL2, RADEON_DAC2_PALETTE_ACC_CTL);
   2200 
   2201 	PUT32(sc, RADEON_PALETTE_INDEX, 0);
   2202 	for (i = 0; i <= CLUT_WIDTH; ++i) {
   2203 		PUT32(sc, RADEON_PALETTE_30_DATA,
   2204 		    (CLUT_COLOR(i) << 10) |
   2205 		    (CLUT_COLOR(i) << 20) |
   2206 		    (CLUT_COLOR(i)));
   2207 	}
   2208 
   2209 	CLR32(sc, RADEON_DAC_CNTL2, RADEON_DAC2_PALETTE_ACC_CTL);
   2210 	PRINTREG(RADEON_DAC_CNTL2);
   2211 
   2212 	PUTPLL(sc, RADEON_VCLK_ECP_CNTL, vclk);
   2213 }
   2214 
   2215 /*
   2216  * Bugs in some R300 hardware requires this when accessing CLOCK_CNTL_INDEX.
   2217  */
   2218 void
   2219 radeonfb_r300cg_workaround(struct radeonfb_softc *sc)
   2220 {
   2221 	uint32_t	tmp, save;
   2222 
   2223 	save = GET32(sc, RADEON_CLOCK_CNTL_INDEX);
   2224 	tmp = save & ~(0x3f | RADEON_PLL_WR_EN);
   2225 	PUT32(sc, RADEON_CLOCK_CNTL_INDEX, tmp);
   2226 	tmp = GET32(sc, RADEON_CLOCK_CNTL_DATA);
   2227 	PUT32(sc, RADEON_CLOCK_CNTL_INDEX, save);
   2228 }
   2229 
   2230 /*
   2231  * Acceleration entry points.
   2232  */
   2233 static void
   2234 radeonfb_putchar(void *cookie, int row, int col, u_int c, long attr)
   2235 {
   2236 	struct rasops_info	*ri = cookie;
   2237 	struct vcons_screen	*scr = ri->ri_hw;
   2238 	struct radeonfb_display	*dp = scr->scr_cookie;
   2239 	uint32_t		x, y, w, h;
   2240 	uint32_t		bg, fg;
   2241 	uint8_t			*data;
   2242 
   2243 	if (dp->rd_wsmode != WSDISPLAYIO_MODE_EMUL)
   2244 		return;
   2245 
   2246 	if (!CHAR_IN_FONT(c, ri->ri_font))
   2247 		return;
   2248 
   2249 	w = ri->ri_font->fontwidth;
   2250 	h = ri->ri_font->fontheight;
   2251 
   2252 	bg = ri->ri_devcmap[(attr >> 16) & 0xf];
   2253 	fg = ri->ri_devcmap[(attr >> 24) & 0xf];
   2254 
   2255 	x = ri->ri_xorigin + col * w;
   2256 	y = ri->ri_yorigin + row * h;
   2257 
   2258 	if (c == 0x20) {
   2259 		radeonfb_rectfill(dp, x, y, w, h, bg);
   2260 	} else {
   2261 		data = (uint8_t *)ri->ri_font->data +
   2262 		    (c - ri->ri_font->firstchar) * ri->ri_fontscale;
   2263 
   2264 		radeonfb_setup_mono(dp, x, y, w, h, fg, bg);
   2265 		radeonfb_feed_bytes(dp, ri->ri_fontscale, data);
   2266 	}
   2267 }
   2268 
   2269 static void
   2270 radeonfb_eraserows(void *cookie, int row, int nrows, long fillattr)
   2271 {
   2272 	struct rasops_info	*ri = cookie;
   2273 	struct vcons_screen	*scr = ri->ri_hw;
   2274 	struct radeonfb_display	*dp = scr->scr_cookie;
   2275 	uint32_t		x, y, w, h, fg, bg, ul;
   2276 
   2277 	/* XXX: check for full emulation mode? */
   2278 	if (dp->rd_wsmode == WSDISPLAYIO_MODE_EMUL) {
   2279 		x = ri->ri_xorigin;
   2280 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   2281 		w = ri->ri_emuwidth;
   2282 		h = ri->ri_font->fontheight * nrows;
   2283 
   2284 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
   2285 		radeonfb_rectfill(dp, x, y, w, h, ri->ri_devcmap[bg & 0xf]);
   2286 	}
   2287 }
   2288 
   2289 static void
   2290 radeonfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
   2291 {
   2292 	struct rasops_info	*ri = cookie;
   2293 	struct vcons_screen	*scr = ri->ri_hw;
   2294 	struct radeonfb_display	*dp = scr->scr_cookie;
   2295 	uint32_t		x, ys, yd, w, h;
   2296 
   2297 	if (dp->rd_wsmode == WSDISPLAYIO_MODE_EMUL) {
   2298 		x = ri->ri_xorigin;
   2299 		ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
   2300 		yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
   2301 		w = ri->ri_emuwidth;
   2302 		h = ri->ri_font->fontheight * nrows;
   2303 		radeonfb_bitblt(dp, x, ys, x, yd, w, h,
   2304 		    RADEON_ROP3_S, 0xffffffff);
   2305 	}
   2306 }
   2307 
   2308 static void
   2309 radeonfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
   2310 {
   2311 	struct rasops_info	*ri = cookie;
   2312 	struct vcons_screen	*scr = ri->ri_hw;
   2313 	struct radeonfb_display	*dp = scr->scr_cookie;
   2314 	uint32_t		xs, xd, y, w, h;
   2315 
   2316 	if (dp->rd_wsmode == WSDISPLAYIO_MODE_EMUL) {
   2317 		xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
   2318 		xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
   2319 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   2320 		w = ri->ri_font->fontwidth * ncols;
   2321 		h = ri->ri_font->fontheight;
   2322 		radeonfb_bitblt(dp, xs, y, xd, y, w, h,
   2323 		    RADEON_ROP3_S, 0xffffffff);
   2324 	}
   2325 }
   2326 
   2327 static void
   2328 radeonfb_erasecols(void *cookie, int row, int startcol, int ncols,
   2329     long fillattr)
   2330 {
   2331 	struct rasops_info	*ri = cookie;
   2332 	struct vcons_screen	*scr = ri->ri_hw;
   2333 	struct radeonfb_display	*dp = scr->scr_cookie;
   2334 	uint32_t		x, y, w, h, fg, bg, ul;
   2335 
   2336 	if (dp->rd_wsmode == WSDISPLAYIO_MODE_EMUL) {
   2337 		x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
   2338 		y = ri->ri_yorigin + ri->ri_font->fontheight * row;
   2339 		w = ri->ri_font->fontwidth * ncols;
   2340 		h = ri->ri_font->fontheight;
   2341 
   2342 		rasops_unpack_attr(fillattr, &fg, &bg, &ul);
   2343 		radeonfb_rectfill(dp, x, y, w, h, ri->ri_devcmap[bg & 0xf]);
   2344 	}
   2345 }
   2346 
   2347 static void
   2348 radeonfb_cursor(void *cookie, int on, int row, int col)
   2349 {
   2350 	struct rasops_info *ri = cookie;
   2351 	struct vcons_screen *scr = ri->ri_hw;
   2352 	struct radeonfb_display	*dp = scr->scr_cookie;
   2353 	int x, y, wi, he;
   2354 
   2355 	wi = ri->ri_font->fontwidth;
   2356 	he = ri->ri_font->fontheight;
   2357 
   2358 	if (dp->rd_wsmode == WSDISPLAYIO_MODE_EMUL) {
   2359 		x = ri->ri_ccol * wi + ri->ri_xorigin;
   2360 		y = ri->ri_crow * he + ri->ri_yorigin;
   2361 		/* first turn off the old cursor */
   2362 		if (ri->ri_flg & RI_CURSOR) {
   2363 			radeonfb_bitblt(dp, x, y, x, y, wi, he,
   2364 			    RADEON_ROP3_Dn, 0xffffffff);
   2365 			ri->ri_flg &= ~RI_CURSOR;
   2366 		}
   2367 		ri->ri_crow = row;
   2368 		ri->ri_ccol = col;
   2369 		/* then (possibly) turn on the new one */
   2370 		if (on) {
   2371 			x = ri->ri_ccol * wi + ri->ri_xorigin;
   2372 			y = ri->ri_crow * he + ri->ri_yorigin;
   2373 			radeonfb_bitblt(dp, x, y, x, y, wi, he,
   2374 			    RADEON_ROP3_Dn, 0xffffffff);
   2375 			ri->ri_flg |= RI_CURSOR;
   2376 		}
   2377 	} else {
   2378 		scr->scr_ri.ri_crow = row;
   2379 		scr->scr_ri.ri_ccol = col;
   2380 		scr->scr_ri.ri_flg &= ~RI_CURSOR;
   2381 	}
   2382 }
   2383 
   2384 static int
   2385 radeonfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp)
   2386 {
   2387 	if ((fg == 0) && (bg == 0)) {
   2388 		fg = WS_DEFAULT_FG;
   2389 		bg = WS_DEFAULT_BG;
   2390 	}
   2391 	*attrp = ((fg & 0xf) << 24) | ((bg & 0xf) << 16) | (flags & 0xff) << 8;
   2392 	return 0;
   2393 }
   2394 
   2395 /*
   2396  * Underlying acceleration support.
   2397  */
   2398 static void
   2399 radeonfb_setup_mono(struct radeonfb_display *dp, int xd, int yd, int width,
   2400     int height, uint32_t fg, uint32_t bg)
   2401 {
   2402 	struct radeonfb_softc	*sc = dp->rd_softc;
   2403 	uint32_t		gmc;
   2404 	uint32_t 		padded_width = (width+7) & 0xfff8;
   2405 	uint32_t		topleft, bottomright;
   2406 
   2407 	gmc = dp->rd_format << RADEON_GMC_DST_DATATYPE_SHIFT;
   2408 
   2409 	if (width != padded_width) {
   2410 
   2411 		radeonfb_wait_fifo(sc, 2);
   2412 		topleft = ((yd << 16) & 0x1fff0000) | (xd & 0x1fff);
   2413 		bottomright = (((yd + height) << 16) & 0x1fff0000) |
   2414 		    ((xd + width) & 0x1fff);
   2415 		PUT32(sc, RADEON_SC_TOP_LEFT, topleft);
   2416 		PUT32(sc, RADEON_SC_BOTTOM_RIGHT, bottomright);
   2417 	}
   2418 
   2419 	radeonfb_wait_fifo(sc, 5);
   2420 
   2421 	PUT32(sc, RADEON_DP_GUI_MASTER_CNTL,
   2422 	    RADEON_GMC_BRUSH_NONE |
   2423 	    RADEON_GMC_SRC_DATATYPE_MONO_FG_BG |
   2424 	    //RADEON_GMC_BYTE_LSB_TO_MSB |
   2425 	    RADEON_GMC_DST_CLIPPING |
   2426 	    RADEON_ROP3_S |
   2427 	    RADEON_DP_SRC_SOURCE_HOST_DATA |
   2428 	    RADEON_GMC_CLR_CMP_CNTL_DIS |
   2429 	    RADEON_GMC_WR_MSK_DIS |
   2430 	    gmc);
   2431 
   2432 	PUT32(sc, RADEON_DP_SRC_FRGD_CLR, fg);
   2433 	PUT32(sc, RADEON_DP_SRC_BKGD_CLR, bg);
   2434 
   2435 	PUT32(sc, RADEON_DST_X_Y, (xd << 16) | yd);
   2436 	PUT32(sc, RADEON_DST_WIDTH_HEIGHT, (padded_width << 16) | height);
   2437 
   2438 }
   2439 
   2440 static void
   2441 radeonfb_feed_bytes(struct radeonfb_display *dp, int count, uint8_t *data)
   2442 {
   2443 	struct radeonfb_softc	*sc = dp->rd_softc;
   2444 	int i;
   2445 	uint32_t latch = 0;
   2446 	int shift = 0;
   2447 
   2448 	for (i = 0; i < count; i++) {
   2449 		latch |= (data[i] << shift);
   2450 		if (shift == 24) {
   2451 			radeonfb_wait_fifo(sc, 1);
   2452 			PUT32(sc, RADEON_HOST_DATA0, latch);
   2453 			latch = 0;
   2454 			shift = 0;
   2455 		} else
   2456 			shift += 8;
   2457 	}
   2458 	if (shift != 0) {
   2459 		radeonfb_wait_fifo(sc, 1);
   2460 		PUT32(sc, RADEON_HOST_DATA0, latch);
   2461 	}
   2462 	radeonfb_unclip(sc);
   2463 }
   2464 
   2465 static void
   2466 radeonfb_rectfill(struct radeonfb_display *dp, int dstx, int dsty,
   2467     int width, int height, uint32_t color)
   2468 {
   2469 	struct radeonfb_softc	*sc = dp->rd_softc;
   2470 	uint32_t		gmc;
   2471 
   2472 	gmc = dp->rd_format << RADEON_GMC_DST_DATATYPE_SHIFT;
   2473 
   2474 	radeonfb_wait_fifo(sc, 6);
   2475 
   2476 	PUT32(sc, RADEON_DP_GUI_MASTER_CNTL,
   2477 	    RADEON_GMC_BRUSH_SOLID_COLOR |
   2478 	    RADEON_GMC_SRC_DATATYPE_COLOR |
   2479 	    RADEON_GMC_CLR_CMP_CNTL_DIS |
   2480 	    RADEON_ROP3_P | gmc);
   2481 
   2482 	PUT32(sc, RADEON_DP_BRUSH_FRGD_CLR, color);
   2483 	PUT32(sc, RADEON_DP_WRITE_MASK, 0xffffffff);
   2484 	PUT32(sc, RADEON_DP_CNTL,
   2485 	    RADEON_DST_X_LEFT_TO_RIGHT |
   2486 	    RADEON_DST_Y_TOP_TO_BOTTOM);
   2487 	PUT32(sc, RADEON_DST_Y_X, (dsty << 16) | dstx);
   2488 	PUT32(sc, RADEON_DST_WIDTH_HEIGHT, (width << 16) | (height));
   2489 
   2490 	/*
   2491 	 * XXX: we don't wait for the fifo to empty -- that would slow
   2492 	 * things down!  The linux radeonfb driver waits, but xfree doesn't
   2493 	 */
   2494 	/* XXX: for now we do, to make it safe for direct drawing */
   2495 	radeonfb_engine_idle(sc);
   2496 }
   2497 
   2498 static void
   2499 radeonfb_bitblt(struct radeonfb_display *dp, int srcx, int srcy,
   2500     int dstx, int dsty, int width, int height, int rop, uint32_t mask)
   2501 {
   2502 	struct radeonfb_softc	*sc = dp->rd_softc;
   2503 	uint32_t		gmc;
   2504 	uint32_t		dir;
   2505 
   2506 	if (dsty < srcy) {
   2507 		dir = RADEON_DST_Y_TOP_TO_BOTTOM;
   2508 	} else {
   2509 		srcy += height - 1;
   2510 		dsty += height - 1;
   2511 		dir = 0;
   2512 	}
   2513 	if (dstx < srcx) {
   2514 		dir |= RADEON_DST_X_LEFT_TO_RIGHT;
   2515 	} else {
   2516 		srcx += width - 1;
   2517 		dstx += width - 1;
   2518 	}
   2519 
   2520 	gmc = dp->rd_format << RADEON_GMC_DST_DATATYPE_SHIFT;
   2521 
   2522 	radeonfb_wait_fifo(sc, 6);
   2523 
   2524 	PUT32(sc, RADEON_DP_GUI_MASTER_CNTL,
   2525 	    //RADEON_GMC_SRC_CLIPPING |
   2526 	    RADEON_GMC_BRUSH_SOLID_COLOR |
   2527 	    RADEON_GMC_SRC_DATATYPE_COLOR |
   2528 	    RADEON_GMC_CLR_CMP_CNTL_DIS |
   2529 	    RADEON_DP_SRC_SOURCE_MEMORY |
   2530 	    rop | gmc);
   2531 
   2532 	PUT32(sc, RADEON_DP_WRITE_MASK, mask);
   2533 	PUT32(sc, RADEON_DP_CNTL, dir);
   2534 	PUT32(sc, RADEON_SRC_Y_X, (srcy << 16) | srcx);
   2535 	PUT32(sc, RADEON_DST_Y_X, (dsty << 16) | dstx);
   2536 	PUT32(sc, RADEON_DST_WIDTH_HEIGHT, (width << 16) | (height));
   2537 
   2538 	/*
   2539 	 * XXX: we don't wait for the fifo to empty -- that would slow
   2540 	 * things down!  The linux radeonfb driver waits, but xfree doesn't
   2541 	 */
   2542 	/* XXX: for now we do, to make it safe for direct drawing */
   2543 	radeonfb_engine_idle(sc);
   2544 }
   2545 
   2546 static void
   2547 radeonfb_engine_idle(struct radeonfb_softc *sc)
   2548 {
   2549 	int	i;
   2550 
   2551 	radeonfb_wait_fifo(sc, 64);
   2552 	for (i = RADEON_TIMEOUT; i; i--) {
   2553 		if ((GET32(sc, RADEON_RBBM_STATUS) &
   2554 			RADEON_RBBM_ACTIVE) == 0) {
   2555 			radeonfb_engine_flush(sc);
   2556 			break;
   2557 		}
   2558 	}
   2559 }
   2560 
   2561 static void
   2562 radeonfb_wait_fifo(struct radeonfb_softc *sc, int n)
   2563 {
   2564 	int	i;
   2565 
   2566 	for (i = RADEON_TIMEOUT; i; i--) {
   2567 		if ((GET32(sc, RADEON_RBBM_STATUS) &
   2568 			RADEON_RBBM_FIFOCNT_MASK) >= n)
   2569 			return;
   2570 	}
   2571 #ifdef	DIAGNOSTIC
   2572 	if (!i)
   2573 		printf("%s: timed out waiting for fifo (%x)\n",
   2574 		    XNAME(sc), GET32(sc, RADEON_RBBM_STATUS));
   2575 #endif
   2576 }
   2577 
   2578 static void
   2579 radeonfb_engine_flush(struct radeonfb_softc *sc)
   2580 {
   2581 	int	i;
   2582 	SET32(sc, RADEON_RB2D_DSTCACHE_CTLSTAT, RADEON_RB2D_DC_FLUSH_ALL);
   2583 	for  (i = RADEON_TIMEOUT; i; i--) {
   2584 		if ((GET32(sc, RADEON_RB2D_DSTCACHE_CTLSTAT) &
   2585 			RADEON_RB2D_DC_BUSY) == 0)
   2586 			break;
   2587 	}
   2588 #ifdef DIAGNOSTIC
   2589 	if (!i)
   2590 		printf("%s: engine flush timed out!\n", XNAME(sc));
   2591 #endif
   2592 }
   2593 
   2594 static inline void
   2595 radeonfb_unclip(struct radeonfb_softc *sc)
   2596 {
   2597 
   2598 	radeonfb_wait_fifo(sc, 2);
   2599 	PUT32(sc, RADEON_SC_TOP_LEFT, 0);
   2600 	PUT32(sc, RADEON_SC_BOTTOM_RIGHT, 0x1fff1fff);
   2601 }
   2602 
   2603 static void
   2604 radeonfb_engine_init(struct radeonfb_display *dp)
   2605 {
   2606 	struct radeonfb_softc	*sc = dp->rd_softc;
   2607 	uint32_t		pitch;
   2608 
   2609 	/* no 3D */
   2610 	PUT32(sc, RADEON_RB3D_CNTL, 0);
   2611 
   2612 	radeonfb_engine_reset(sc);
   2613 	pitch = ((dp->rd_virtx * (dp->rd_bpp / 8) + 0x3f)) >> 6;
   2614 	//pitch = ((sc->sc_maxx * (sc->sc_maxbpp / 8) + 0x3f)) >> 6;
   2615 
   2616 	radeonfb_wait_fifo(sc, 1);
   2617 	if (!IS_R300(sc))
   2618 		PUT32(sc, RADEON_RB2D_DSTCACHE_MODE, 0);
   2619 
   2620 	radeonfb_wait_fifo(sc, 3);
   2621 	PUT32(sc, RADEON_DEFAULT_PITCH_OFFSET,
   2622 	    (pitch << 22) | (sc->sc_aperbase >> 10));
   2623 
   2624 
   2625 	PUT32(sc, RADEON_DST_PITCH_OFFSET,
   2626 	    (pitch << 22) | (sc->sc_aperbase >> 10));
   2627 	PUT32(sc, RADEON_SRC_PITCH_OFFSET,
   2628 	    (pitch << 22) | (sc->sc_aperbase >> 10));
   2629 
   2630 	radeonfb_wait_fifo(sc, 1);
   2631 #if _BYTE_ORDER == _BIG_ENDIAN
   2632 	SET32(sc, RADEON_DP_DATATYPE, RADEON_HOST_BIG_ENDIAN_EN);
   2633 #else
   2634 	CLR32(sc, RADEON_DP_DATATYPE, RADEON_HOST_BIG_ENDIAN_EN);
   2635 #endif
   2636 
   2637 	/* default scissors -- no clipping */
   2638 	radeonfb_wait_fifo(sc, 1);
   2639 	PUT32(sc, RADEON_DEFAULT_SC_BOTTOM_RIGHT,
   2640 	    RADEON_DEFAULT_SC_RIGHT_MAX | RADEON_DEFAULT_SC_BOTTOM_MAX);
   2641 
   2642 	radeonfb_wait_fifo(sc, 1);
   2643 	PUT32(sc, RADEON_DP_GUI_MASTER_CNTL,
   2644 	    (dp->rd_format << RADEON_GMC_DST_DATATYPE_SHIFT) |
   2645 	    RADEON_GMC_CLR_CMP_CNTL_DIS |
   2646 	    RADEON_GMC_BRUSH_SOLID_COLOR |
   2647 	    RADEON_GMC_SRC_DATATYPE_COLOR);
   2648 
   2649 	radeonfb_wait_fifo(sc, 7);
   2650 	PUT32(sc, RADEON_DST_LINE_START, 0);
   2651 	PUT32(sc, RADEON_DST_LINE_END, 0);
   2652 	PUT32(sc, RADEON_DP_BRUSH_FRGD_CLR, 0xffffffff);
   2653 	PUT32(sc, RADEON_DP_BRUSH_BKGD_CLR, 0);
   2654 	PUT32(sc, RADEON_DP_SRC_FRGD_CLR, 0xffffffff);
   2655 	PUT32(sc, RADEON_DP_SRC_BKGD_CLR, 0);
   2656 	PUT32(sc, RADEON_DP_WRITE_MASK, 0xffffffff);
   2657 
   2658 	radeonfb_engine_idle(sc);
   2659 }
   2660 
   2661 static void
   2662 radeonfb_engine_reset(struct radeonfb_softc *sc)
   2663 {
   2664 	uint32_t	hpc, rbbm, mclkcntl, clkindex;
   2665 
   2666 	radeonfb_engine_flush(sc);
   2667 
   2668 	clkindex = GET32(sc, RADEON_CLOCK_CNTL_INDEX);
   2669 	if (HAS_R300CG(sc))
   2670 		radeonfb_r300cg_workaround(sc);
   2671 	mclkcntl = GETPLL(sc, RADEON_MCLK_CNTL);
   2672 
   2673 	/*
   2674 	 * According to comments in XFree code, resetting the HDP via
   2675 	 * the RBBM_SOFT_RESET can cause bad behavior on some systems.
   2676 	 * So we use HOST_PATH_CNTL instead.
   2677 	 */
   2678 
   2679 	hpc = GET32(sc, RADEON_HOST_PATH_CNTL);
   2680 	rbbm = GET32(sc, RADEON_RBBM_SOFT_RESET);
   2681 	if (IS_R300(sc)) {
   2682 		PUT32(sc, RADEON_RBBM_SOFT_RESET, rbbm |
   2683 		    RADEON_SOFT_RESET_CP |
   2684 		    RADEON_SOFT_RESET_HI |
   2685 		    RADEON_SOFT_RESET_E2);
   2686 		GET32(sc, RADEON_RBBM_SOFT_RESET);
   2687 		PUT32(sc, RADEON_RBBM_SOFT_RESET, 0);
   2688 		/*
   2689 		 * XXX: this bit is not defined in any ATI docs I have,
   2690 		 * nor in the XFree code, but XFree does it.  Why?
   2691 		 */
   2692 		SET32(sc, RADEON_RB2D_DSTCACHE_MODE, (1<<17));
   2693 	} else {
   2694 		PUT32(sc, RADEON_RBBM_SOFT_RESET, rbbm |
   2695 		    RADEON_SOFT_RESET_CP |
   2696 		    RADEON_SOFT_RESET_SE |
   2697 		    RADEON_SOFT_RESET_RE |
   2698 		    RADEON_SOFT_RESET_PP |
   2699 		    RADEON_SOFT_RESET_E2 |
   2700 		    RADEON_SOFT_RESET_RB);
   2701 		GET32(sc, RADEON_RBBM_SOFT_RESET);
   2702 		PUT32(sc, RADEON_RBBM_SOFT_RESET, rbbm &
   2703 		    ~(RADEON_SOFT_RESET_CP |
   2704 			RADEON_SOFT_RESET_SE |
   2705 			RADEON_SOFT_RESET_RE |
   2706 			RADEON_SOFT_RESET_PP |
   2707 			RADEON_SOFT_RESET_E2 |
   2708 			RADEON_SOFT_RESET_RB));
   2709 		GET32(sc, RADEON_RBBM_SOFT_RESET);
   2710 	}
   2711 
   2712 	PUT32(sc, RADEON_HOST_PATH_CNTL, hpc | RADEON_HDP_SOFT_RESET);
   2713 	GET32(sc, RADEON_HOST_PATH_CNTL);
   2714 	PUT32(sc, RADEON_HOST_PATH_CNTL, hpc);
   2715 
   2716 	if (IS_R300(sc))
   2717 		PUT32(sc, RADEON_RBBM_SOFT_RESET, rbbm);
   2718 
   2719 	PUT32(sc, RADEON_CLOCK_CNTL_INDEX, clkindex);
   2720 	PUTPLL(sc, RADEON_MCLK_CNTL, mclkcntl);
   2721 
   2722 	if (HAS_R300CG(sc))
   2723 		radeonfb_r300cg_workaround(sc);
   2724 }
   2725 
   2726 static int
   2727 radeonfb_set_curpos(struct radeonfb_display *dp, struct wsdisplay_curpos *pos)
   2728 {
   2729 	int		x, y;
   2730 
   2731 	x = pos->x;
   2732 	y = pos->y;
   2733 
   2734 	/*
   2735 	 * This doesn't let a cursor move off the screen.  I'm not
   2736 	 * sure if this will have negative effects for e.g. Xinerama.
   2737 	 * I'd guess Xinerama handles it by changing the cursor shape,
   2738 	 * but that needs verification.
   2739 	 */
   2740 	if (x >= dp->rd_virtx)
   2741 		x = dp->rd_virtx - 1;
   2742 	if (x < 0)
   2743 		x = 0;
   2744 	if (y >= dp->rd_virty)
   2745 		y = dp->rd_virty - 1;
   2746 	if (y < 0)
   2747 		y = 0;
   2748 
   2749 	dp->rd_cursor.rc_pos.x = x;
   2750 	dp->rd_cursor.rc_pos.y = y;
   2751 
   2752 	radeonfb_cursor_position(dp);
   2753 	return 0;
   2754 }
   2755 
   2756 static int
   2757 radeonfb_set_cursor(struct radeonfb_display *dp, struct wsdisplay_cursor *wc)
   2758 {
   2759 	unsigned	flags;
   2760 
   2761 	uint8_t		r[2], g[2], b[2];
   2762 	unsigned	index, count;
   2763 	int		i, err;
   2764 	int		pitch, size;
   2765 	struct radeonfb_cursor	nc;
   2766 
   2767 	flags = wc->which;
   2768 
   2769 	/* copy old values */
   2770 	nc = dp->rd_cursor;
   2771 
   2772 	if (flags & WSDISPLAY_CURSOR_DOCMAP) {
   2773 		index = wc->cmap.index;
   2774 		count = wc->cmap.count;
   2775 
   2776 		if (index >= 2 || (index + count) > 2)
   2777 			return EINVAL;
   2778 
   2779 		err = copyin(wc->cmap.red, &r[index], count);
   2780 		if (err)
   2781 			return err;
   2782 		err = copyin(wc->cmap.green, &g[index], count);
   2783 		if (err)
   2784 			return err;
   2785 		err = copyin(wc->cmap.blue, &b[index], count);
   2786 		if (err)
   2787 			return err;
   2788 
   2789 		for (i = index; i < index + count; i++) {
   2790 			nc.rc_cmap[i] =
   2791 			    (r[i] << 16) + (g[i] << 8) + (b[i] << 0);
   2792 		}
   2793 	}
   2794 
   2795 	if (flags & WSDISPLAY_CURSOR_DOSHAPE) {
   2796 		if ((wc->size.x > RADEON_CURSORMAXX) ||
   2797 		    (wc->size.y > RADEON_CURSORMAXY))
   2798 			return EINVAL;
   2799 
   2800 		/* figure bytes per line */
   2801 		pitch = (wc->size.x + 7) / 8;
   2802 		size = pitch * wc->size.y;
   2803 
   2804 		/* clear the old cursor and mask */
   2805 		memset(nc.rc_image, 0, 512);
   2806 		memset(nc.rc_mask, 0, 512);
   2807 
   2808 		nc.rc_size = wc->size;
   2809 
   2810 		if ((err = copyin(wc->image, nc.rc_image, size)) != 0)
   2811 			return err;
   2812 
   2813 		if ((err = copyin(wc->mask, nc.rc_mask, size)) != 0)
   2814 			return err;
   2815 	}
   2816 
   2817 	if (flags & WSDISPLAY_CURSOR_DOHOT) {
   2818 		nc.rc_hot = wc->hot;
   2819 		if (nc.rc_hot.x >= nc.rc_size.x)
   2820 			nc.rc_hot.x = nc.rc_size.x - 1;
   2821 		if (nc.rc_hot.y >= nc.rc_size.y)
   2822 			nc.rc_hot.y = nc.rc_size.y - 1;
   2823 	}
   2824 
   2825 	if (flags & WSDISPLAY_CURSOR_DOPOS) {
   2826 		nc.rc_pos = wc->pos;
   2827 		if (nc.rc_pos.x >= dp->rd_virtx)
   2828 			nc.rc_pos.x = dp->rd_virtx - 1;
   2829 #if 0
   2830 		if (nc.rc_pos.x < 0)
   2831 			nc.rc_pos.x = 0;
   2832 #endif
   2833 		if (nc.rc_pos.y >= dp->rd_virty)
   2834 			nc.rc_pos.y = dp->rd_virty - 1;
   2835 #if 0
   2836 		if (nc.rc_pos.y < 0)
   2837 			nc.rc_pos.y = 0;
   2838 #endif
   2839 	}
   2840 	if (flags & WSDISPLAY_CURSOR_DOCUR) {
   2841 		nc.rc_visible = wc->enable;
   2842 	}
   2843 
   2844 	dp->rd_cursor = nc;
   2845 	radeonfb_cursor_update(dp, wc->which);
   2846 
   2847 	return 0;
   2848 }
   2849 
   2850 /*
   2851  * Change the cursor shape.  Call this with the cursor locked to avoid
   2852  * flickering/tearing.
   2853  */
   2854 static void
   2855 radeonfb_cursor_shape(struct radeonfb_display *dp)
   2856 {
   2857 	uint8_t	and[512], xor[512];
   2858 	int	i, j, src, dst, pitch;
   2859 	const uint8_t	*msk = dp->rd_cursor.rc_mask;
   2860 	const uint8_t	*img = dp->rd_cursor.rc_image;
   2861 
   2862 	/*
   2863 	 * Radeon cursor data interleaves one line of AND data followed
   2864 	 * by a line of XOR data.  (Each line corresponds to a whole hardware
   2865 	 * pitch - i.e. 64 pixels or 8 bytes.)
   2866 	 *
   2867 	 * The cursor is displayed using the following table:
   2868 	 *
   2869 	 * AND	XOR	Result
   2870 	 * ----------------------
   2871 	 *  0    0	Cursor color 0
   2872 	 *  0	 1	Cursor color 1
   2873 	 *  1	 0	Transparent
   2874 	 *  1	 1	Complement of background
   2875 	 *
   2876 	 * Our masks are therefore different from what we were passed.
   2877 	 * Passed in, I'm assuming the data represents either color 0 or 1,
   2878 	 * and a mask, so the passed in table looks like:
   2879 	 *
   2880 	 * IMG	Mask	Result
   2881 	 * -----------------------
   2882 	 *  0	 0	Transparent
   2883 	 *  0	 1	Cursor color 0
   2884 	 *  1	 0	Transparent
   2885 	 *  1	 1	Cursor color 1
   2886 	 *
   2887 	 * IF mask bit == 1, AND = 0, XOR = color.
   2888 	 * IF mask bit == 0, AND = 1, XOR = 0.
   2889 	 *
   2890 	 * hence:	AND = ~(mask);	XOR = color & ~(mask);
   2891 	 */
   2892 
   2893 	pitch = ((dp->rd_cursor.rc_size.x + 7) / 8);
   2894 
   2895 	/* start by assuming all bits are transparent */
   2896 	memset(and, 0xff, 512);
   2897 	memset(xor, 0x00, 512);
   2898 
   2899 	src = 0;
   2900 	dst = 0;
   2901 	for (i = 0; i < 64; i++) {
   2902 		for (j = 0; j < 64; j += 8) {
   2903 			if ((i < dp->rd_cursor.rc_size.y) &&
   2904 			    (j < dp->rd_cursor.rc_size.x)) {
   2905 
   2906 				/* take care to leave odd bits alone */
   2907 				and[dst] &= ~(msk[src]);
   2908 				xor[dst] = img[src] & msk[src];
   2909 				src++;
   2910 			}
   2911 			dst++;
   2912 		}
   2913 	}
   2914 
   2915 	/* copy the image into place */
   2916 	for (i = 0; i < 64; i++) {
   2917 		memcpy((uint8_t *)dp->rd_curptr + (i * 16),
   2918 		    &and[i * 8], 8);
   2919 		memcpy((uint8_t *)dp->rd_curptr + (i * 16) + 8,
   2920 		    &xor[i * 8], 8);
   2921 	}
   2922 }
   2923 
   2924 static void
   2925 radeonfb_cursor_position(struct radeonfb_display *dp)
   2926 {
   2927 	struct radeonfb_softc	*sc = dp->rd_softc;
   2928 	uint32_t		offset, hvoff, hvpos;	/* registers */
   2929 	uint32_t		coff;			/* cursor offset */
   2930 	int			i, x, y, xoff, yoff, crtcoff;
   2931 
   2932 	/*
   2933 	 * XXX: this also needs to handle pan/scan
   2934 	 */
   2935 	for (i = 0; i < dp->rd_ncrtcs; i++) {
   2936 
   2937 		struct radeonfb_crtc	*rcp = &dp->rd_crtcs[i];
   2938 
   2939 		if (rcp->rc_number) {
   2940 			offset = RADEON_CUR2_OFFSET;
   2941 			hvoff = RADEON_CUR2_HORZ_VERT_OFF;
   2942 			hvpos = RADEON_CUR2_HORZ_VERT_POSN;
   2943 			crtcoff = RADEON_CRTC2_OFFSET;
   2944 		} else {
   2945 			offset = RADEON_CUR_OFFSET;
   2946 			hvoff = RADEON_CUR_HORZ_VERT_OFF;
   2947 			hvpos = RADEON_CUR_HORZ_VERT_POSN;
   2948 			crtcoff = RADEON_CRTC_OFFSET;
   2949 		}
   2950 
   2951 		x = dp->rd_cursor.rc_pos.x;
   2952 		y = dp->rd_cursor.rc_pos.y;
   2953 
   2954 		while (y < rcp->rc_yoffset) {
   2955 			rcp->rc_yoffset -= RADEON_PANINCREMENT;
   2956 		}
   2957 		while (y >= (rcp->rc_yoffset + rcp->rc_videomode.vdisplay)) {
   2958 			rcp->rc_yoffset += RADEON_PANINCREMENT;
   2959 		}
   2960 		while (x < rcp->rc_xoffset) {
   2961 			rcp->rc_xoffset -= RADEON_PANINCREMENT;
   2962 		}
   2963 		while (x >= (rcp->rc_xoffset + rcp->rc_videomode.hdisplay)) {
   2964 			rcp->rc_xoffset += RADEON_PANINCREMENT;
   2965 		}
   2966 
   2967 		/* adjust for the cursor's hotspot */
   2968 		x -= dp->rd_cursor.rc_hot.x;
   2969 		y -= dp->rd_cursor.rc_hot.y;
   2970 		xoff = yoff = 0;
   2971 
   2972 		if (x >= dp->rd_virtx)
   2973 			x = dp->rd_virtx - 1;
   2974 		if (y >= dp->rd_virty)
   2975 			y = dp->rd_virty - 1;
   2976 
   2977 		/* now adjust cursor so it is relative to viewport */
   2978 		x -= rcp->rc_xoffset;
   2979 		y -= rcp->rc_yoffset;
   2980 
   2981 		/*
   2982 		 * no need to check for fall off, because we should
   2983 		 * never move off the screen entirely!
   2984 		 */
   2985 		coff = 0;
   2986 		if (x < 0) {
   2987 			xoff = -x;
   2988 			x = 0;
   2989 		}
   2990 		if (y < 0) {
   2991 			yoff = -y;
   2992 			y = 0;
   2993 			coff = (yoff * 2) * 8;
   2994 		}
   2995 
   2996 		/* pan the display */
   2997 		PUT32(sc, crtcoff, (rcp->rc_yoffset * dp->rd_stride) +
   2998 		    rcp->rc_xoffset);
   2999 
   3000 		PUT32(sc, offset, (dp->rd_curoff + coff) | RADEON_CUR_LOCK);
   3001 		PUT32(sc, hvoff, (xoff << 16) | (yoff) | RADEON_CUR_LOCK);
   3002 		/* NB: this unlocks the cursor */
   3003 		PUT32(sc, hvpos, (x << 16) | y);
   3004 	}
   3005 }
   3006 
   3007 static void
   3008 radeonfb_cursor_visible(struct radeonfb_display *dp)
   3009 {
   3010 	int		i;
   3011 	uint32_t	gencntl, bit;
   3012 
   3013 	for (i = 0; i < dp->rd_ncrtcs; i++) {
   3014 		if (dp->rd_crtcs[i].rc_number) {
   3015 			gencntl = RADEON_CRTC2_GEN_CNTL;
   3016 			bit = RADEON_CRTC2_CUR_EN;
   3017 		} else {
   3018 			gencntl = RADEON_CRTC_GEN_CNTL;
   3019 			bit = RADEON_CRTC_CUR_EN;
   3020 		}
   3021 
   3022 		if (dp->rd_cursor.rc_visible)
   3023 			SET32(dp->rd_softc, gencntl, bit);
   3024 		else
   3025 			CLR32(dp->rd_softc, gencntl, bit);
   3026 	}
   3027 }
   3028 
   3029 static void
   3030 radeonfb_cursor_cmap(struct radeonfb_display *dp)
   3031 {
   3032 	int		i;
   3033 	uint32_t	c0reg, c1reg;
   3034 	struct radeonfb_softc	*sc = dp->rd_softc;
   3035 
   3036 	for (i = 0; i < dp->rd_ncrtcs; i++) {
   3037 		if (dp->rd_crtcs[i].rc_number) {
   3038 			c0reg = RADEON_CUR2_CLR0;
   3039 			c1reg = RADEON_CUR2_CLR1;
   3040 		} else {
   3041 			c0reg = RADEON_CUR_CLR0;
   3042 			c1reg = RADEON_CUR_CLR1;
   3043 		}
   3044 
   3045 		PUT32(sc, c0reg, dp->rd_cursor.rc_cmap[0]);
   3046 		PUT32(sc, c1reg, dp->rd_cursor.rc_cmap[1]);
   3047 	}
   3048 }
   3049 
   3050 static void
   3051 radeonfb_cursor_update(struct radeonfb_display *dp, unsigned which)
   3052 {
   3053 	struct radeonfb_softc	*sc;
   3054 	int		i;
   3055 
   3056 	sc = dp->rd_softc;
   3057 	for (i = 0; i < dp->rd_ncrtcs; i++) {
   3058 		if (dp->rd_crtcs[i].rc_number) {
   3059 			SET32(sc, RADEON_CUR2_OFFSET, RADEON_CUR_LOCK);
   3060 		} else {
   3061 			SET32(sc, RADEON_CUR_OFFSET,RADEON_CUR_LOCK);
   3062 		}
   3063 	}
   3064 
   3065 	if (which & WSDISPLAY_CURSOR_DOCMAP)
   3066 		radeonfb_cursor_cmap(dp);
   3067 
   3068 	if (which & WSDISPLAY_CURSOR_DOSHAPE)
   3069 		radeonfb_cursor_shape(dp);
   3070 
   3071 	if (which & WSDISPLAY_CURSOR_DOCUR)
   3072 		radeonfb_cursor_visible(dp);
   3073 
   3074 	/* this one is unconditional, because it updates other stuff */
   3075 	radeonfb_cursor_position(dp);
   3076 }
   3077 
   3078 static struct videomode *
   3079 radeonfb_best_refresh(struct videomode *m1, struct videomode *m2)
   3080 {
   3081 	int	r1, r2;
   3082 
   3083 	/* otherwise pick the higher refresh rate */
   3084 	r1 = DIVIDE(DIVIDE(m1->dot_clock, m1->htotal), m1->vtotal);
   3085 	r2 = DIVIDE(DIVIDE(m2->dot_clock, m2->htotal), m2->vtotal);
   3086 
   3087 	return (r1 < r2 ? m2 : m1);
   3088 }
   3089 
   3090 static const struct videomode *
   3091 radeonfb_port_mode(struct radeonfb_port *rp, int x, int y)
   3092 {
   3093 	struct edid_info	*ep = &rp->rp_edid;
   3094 	struct videomode	*vmp = NULL;
   3095 	int			i;
   3096 
   3097 	if (!rp->rp_edid_valid) {
   3098 		/* fallback to safe mode */
   3099 		return radeonfb_modelookup(RADEON_DEFAULT_MODE);
   3100 	}
   3101 
   3102 	/* always choose the preferred mode first! */
   3103 	if (ep->edid_preferred_mode) {
   3104 
   3105 		/* XXX: add auto-stretching support for native mode */
   3106 
   3107 		/* this may want panning to occur, btw */
   3108 		if ((ep->edid_preferred_mode->hdisplay <= x) &&
   3109 		    (ep->edid_preferred_mode->vdisplay <= y))
   3110 			return ep->edid_preferred_mode;
   3111 	}
   3112 
   3113 	for (i = 0; i < ep->edid_nmodes; i++) {
   3114 		/*
   3115 		 * We elect to pick a resolution that is too large for
   3116 		 * the monitor than one that is too small.  This means
   3117 		 * that we will prefer to pan rather than to try to
   3118 		 * center a smaller display on a larger screen.  In
   3119 		 * practice, this shouldn't matter because if a
   3120 		 * monitor can support a larger resolution, it can
   3121 		 * probably also support the smaller.  A specific
   3122 		 * exception is fixed format panels, but hopefully
   3123 		 * they are properly dealt with by the "autostretch"
   3124 		 * logic above.
   3125 		 */
   3126 		if ((ep->edid_modes[i].hdisplay > x) ||
   3127 		    (ep->edid_modes[i].vdisplay > y)) {
   3128 			continue;
   3129 		}
   3130 
   3131 		/*
   3132 		 * at this point, the display mode is no larger than
   3133 		 * what we've requested.
   3134 		 */
   3135 		if (vmp == NULL)
   3136 			vmp = &ep->edid_modes[i];
   3137 
   3138 		/* eliminate smaller modes */
   3139 		if ((vmp->hdisplay >= ep->edid_modes[i].hdisplay) ||
   3140 		    (vmp->vdisplay >= ep->edid_modes[i].vdisplay))
   3141 			continue;
   3142 
   3143 		if ((vmp->hdisplay < ep->edid_modes[i].hdisplay) ||
   3144 		    (vmp->vdisplay < ep->edid_modes[i].vdisplay)) {
   3145 			vmp = &ep->edid_modes[i];
   3146 			continue;
   3147 		}
   3148 
   3149 		KASSERT(vmp->hdisplay == ep->edid_modes[i].hdisplay);
   3150 		KASSERT(vmp->vdisplay == ep->edid_modes[i].vdisplay);
   3151 
   3152 		vmp = radeonfb_best_refresh(vmp, &ep->edid_modes[i]);
   3153 	}
   3154 
   3155 	return (vmp ? vmp : radeonfb_modelookup(RADEON_DEFAULT_MODE));
   3156 }
   3157 
   3158 static int
   3159 radeonfb_hasres(struct videomode *list, int nlist, int x, int y)
   3160 {
   3161 	int	i;
   3162 
   3163 	for (i = 0; i < nlist; i++) {
   3164 		if ((x == list[i].hdisplay) &&
   3165 		    (y == list[i].vdisplay)) {
   3166 			return 1;
   3167 		}
   3168 	}
   3169 	return 0;
   3170 }
   3171 
   3172 static void
   3173 radeonfb_pickres(struct radeonfb_display *dp, uint16_t *x, uint16_t *y,
   3174     int pan)
   3175 {
   3176 	struct radeonfb_port	*rp;
   3177 	struct edid_info	*ep;
   3178 	int			i, j;
   3179 
   3180 	*x = 0;
   3181 	*y = 0;
   3182 
   3183 	if (pan) {
   3184 		for (i = 0; i < dp->rd_ncrtcs; i++) {
   3185 			rp = dp->rd_crtcs[i].rc_port;
   3186 			ep = &rp->rp_edid;
   3187 			if (!rp->rp_edid_valid) {
   3188 				/* monitor not present */
   3189 				continue;
   3190 			}
   3191 
   3192 			/*
   3193 			 * For now we are ignoring "conflict" that
   3194 			 * could occur when mixing some modes like
   3195 			 * 1280x1024 and 1400x800.  It isn't clear
   3196 			 * which is better, so the first one wins.
   3197 			 */
   3198 			for (j = 0; j < ep->edid_nmodes; j++) {
   3199 				/*
   3200 				 * ignore resolutions that are too big for
   3201 				 * the radeon
   3202 				 */
   3203 				if (ep->edid_modes[j].hdisplay >
   3204 				    dp->rd_softc->sc_maxx)
   3205 					continue;
   3206 				if (ep->edid_modes[j].vdisplay >
   3207 				    dp->rd_softc->sc_maxy)
   3208 					continue;
   3209 
   3210 				/*
   3211 				 * pick largest resolution, the
   3212 				 * smaller monitor will pan
   3213 				 */
   3214 				if ((ep->edid_modes[j].hdisplay >= *x) &&
   3215 				    (ep->edid_modes[j].vdisplay >= *y)) {
   3216 					*x = ep->edid_modes[j].hdisplay;
   3217 					*y = ep->edid_modes[j].vdisplay;
   3218 				}
   3219 			}
   3220 		}
   3221 
   3222 	} else {
   3223 		struct videomode	modes[64];
   3224 		int			nmodes = 0;
   3225 		int			valid = 0;
   3226 
   3227 		for (i = 0; i < dp->rd_ncrtcs; i++) {
   3228 			/*
   3229 			 * pick the largest resolution in common.
   3230 			 */
   3231 			rp = dp->rd_crtcs[i].rc_port;
   3232 			ep = &rp->rp_edid;
   3233 
   3234 			if (!rp->rp_edid_valid)
   3235 				continue;
   3236 
   3237 			if (!valid) {
   3238 				/* initialize starting list */
   3239 				for (j = 0; j < ep->edid_nmodes; j++) {
   3240 					/*
   3241 					 * ignore resolutions that are
   3242 					 * too big for the radeon
   3243 					 */
   3244 					if (ep->edid_modes[j].hdisplay >
   3245 					    dp->rd_softc->sc_maxx)
   3246 						continue;
   3247 					if (ep->edid_modes[j].vdisplay >
   3248 					    dp->rd_softc->sc_maxy)
   3249 						continue;
   3250 
   3251 					modes[nmodes] = ep->edid_modes[j];
   3252 					nmodes++;
   3253 				}
   3254 				valid = 1;
   3255 			} else {
   3256 				/* merge into preexisting list */
   3257 				for (j = 0; j < nmodes; j++) {
   3258 					if (!radeonfb_hasres(ep->edid_modes,
   3259 						ep->edid_nmodes,
   3260 						modes[j].hdisplay,
   3261 						modes[j].vdisplay)) {
   3262 						modes[j] = modes[nmodes];
   3263 						j--;
   3264 						nmodes--;
   3265 					}
   3266 				}
   3267 			}
   3268 		}
   3269 
   3270 		/* now we have to pick from the merged list */
   3271 		for (i = 0; i < nmodes; i++) {
   3272 			if ((modes[i].hdisplay >= *x) &&
   3273 			    (modes[i].vdisplay >= *y)) {
   3274 				*x = modes[i].hdisplay;
   3275 				*y = modes[i].vdisplay;
   3276 			}
   3277 		}
   3278 	}
   3279 
   3280 	if ((*x == 0) || (*y == 0)) {
   3281 		/* fallback to safe mode */
   3282 		*x = 640;
   3283 		*y = 480;
   3284 	}
   3285 }
   3286