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freebsd-dev/sys/dev/fb/tga.c
David E. O'Brien 2a200695e4 Add the TGA video driver. This is a great accomplishtment and will help 
us a lot on older Alphas.
Andrew Gallatin, Thomas V. Crimi, and Peter Jeremy contributed to this
work along with the submitter.

Submitted by:	 Andrew M. Miklic <miklic@home.com>
2001-11-01 08:26:30 +00:00

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/*-
* Copyright (c) 2000, 2001 Andrew Miklic, Andrew Gallatin, Peter Jeremy,
* and Thomas V. Crimi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Copyright (c) 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <machine/stdarg.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/proc.h>
#include <sys/fcntl.h>
#include <sys/malloc.h>
#include <sys/fbio.h>
#include <sys/consio.h>
#include <isa/isareg.h>
#include <dev/fb/vgareg.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <machine/md_var.h>
#include <machine/pc/bios.h>
#include <machine/clock.h>
#include <machine/bus_memio.h>
#include <machine/bus.h>
#include <machine/pc/vesa.h>
#include <machine/resource.h>
#include <machine/rpb.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <pci/pcireg.h>
#include <pci/pcivar.h>
#include <dev/fb/fbreg.h>
#include <dev/syscons/syscons.h>
#include <dev/fb/gfb.h>
#include <dev/gfb/gfb_pci.h>
#include <dev/fb/tga.h>
#include <dev/tga/tga_pci.h>
#include "opt_fb.h"
/* TGA-specific FB video driver function declarations */
static int tga_error(void);
static vi_init_t tga_init;
static void tga2_init(struct gfb_softc *, int);
/* TGA-specific functionality. */
static gfb_builtin_save_palette_t tga_builtin_save_palette;
static gfb_builtin_load_palette_t tga_builtin_load_palette;
static gfb_builtin_save_palette_t tga2_builtin_save_palette;
static gfb_builtin_load_palette_t tga2_builtin_load_palette;
static gfb_builtin_save_cursor_palette_t tga2_builtin_save_cursor_palette;
static gfb_builtin_load_cursor_palette_t tga2_builtin_load_cursor_palette;
static gfb_builtin_read_hw_cursor_t tga_builtin_read_hw_cursor;
static gfb_builtin_set_hw_cursor_t tga_builtin_set_hw_cursor;
static gfb_builtin_set_hw_cursor_shape_t tga_builtin_set_hw_cursor_shape;
static void bt463_load_palette_intr(struct gfb_softc *);
static void bt463_load_cursor_palette_intr(struct gfb_softc *);
static int tga_schedule_intr(struct gfb_softc *, void (*)(struct gfb_softc *));
/* RAMDAC interface functions */
static gfb_ramdac_wr_t tga_bt485_wr;
static gfb_ramdac_rd_t tga_bt485_rd;
static gfb_ramdac_wr_t tga_bt463_wr;
static gfb_ramdac_rd_t tga_bt463_rd;
static gfb_ramdac_wr_t tga2_ibm561_wr;
static gfb_ramdac_rd_t tga2_ibm561_rd;
static void tga2_ics9110_wr(struct gfb_softc *, int);
/* RAMDAC-specific functions */
static gfb_ramdac_init_t bt463_init;
static void bt463_update_window_type(struct gfb_softc *);
static gfb_ramdac_save_palette_t bt463_save_palette;
static gfb_ramdac_load_palette_t bt463_load_palette;
static gfb_ramdac_save_cursor_palette_t bt463_save_cursor_palette;
static gfb_ramdac_load_cursor_palette_t bt463_load_cursor_palette;
static gfb_ramdac_init_t bt485_init;
static gfb_ramdac_save_palette_t bt485_save_palette;
static gfb_ramdac_load_palette_t bt485_load_palette;
static gfb_ramdac_save_cursor_palette_t bt485_save_cursor_palette;
static gfb_ramdac_load_cursor_palette_t bt485_load_cursor_palette;
static gfb_ramdac_read_hw_cursor_t bt485_read_hw_cursor;
static gfb_ramdac_set_hw_cursor_t bt485_set_hw_cursor;
static gfb_ramdac_set_hw_cursor_shape_t bt485_set_hw_cursor_shape;
static gfb_ramdac_init_t ibm561_init;
static gfb_ramdac_save_palette_t ibm561_save_palette;
static gfb_ramdac_load_palette_t ibm561_load_palette;
static gfb_ramdac_save_cursor_palette_t ibm561_save_cursor_palette;
static gfb_ramdac_load_cursor_palette_t ibm561_load_cursor_palette;
/* Video Driver-generic functions */
static vi_query_mode_t tga_query_mode;
static vi_set_mode_t tga_set_mode;
static vi_blank_display_t tga_blank_display;
static vi_ioctl_t tga_ioctl;
static vi_set_border_t tga_set_border;
static vi_set_win_org_t tga_set_win_org;
static vi_fill_rect_t tga_fill_rect;
static vi_bitblt_t tga_bitblt;
static vi_clear_t tga_clear;
static vi_putc_t tga_putc;
static vi_puts_t tga_puts;
static vi_putm_t tga_putm;
static video_switch_t tgavidsw = {
gfb_probe,
tga_init,
gfb_get_info,
tga_query_mode,
tga_set_mode,
gfb_save_font,
gfb_load_font,
gfb_show_font,
gfb_save_palette,
gfb_load_palette,
tga_set_border,
gfb_save_state,
gfb_load_state,
tga_set_win_org,
gfb_read_hw_cursor,
gfb_set_hw_cursor,
gfb_set_hw_cursor_shape,
tga_blank_display,
gfb_mmap,
gfb_ioctl,
tga_clear,
tga_fill_rect,
tga_bitblt,
tga_error,
tga_error,
gfb_diag,
gfb_save_cursor_palette,
gfb_load_cursor_palette,
gfb_copy,
gfb_putp,
tga_putc,
tga_puts,
tga_putm,
};
VIDEO_DRIVER(tga, tgavidsw, NULL);
extern sc_rndr_sw_t txtrndrsw;
RENDERER(tga, 0, txtrndrsw, gfb_set);
#ifdef SC_PIXEL_MODE
extern sc_rndr_sw_t gfbrndrsw;
RENDERER(tga, PIXEL_MODE, gfbrndrsw, gfb_set);
#endif /* SC_PIXEL_MODE */
#ifndef SC_NO_MODE_CHANGE
extern sc_rndr_sw_t grrndrsw;
RENDERER(tga, GRAPHICS_MODE, grrndrsw, gfb_set);
#endif /* SC_NO_MODE_CHANGE */
RENDERER_MODULE(tga, gfb_set);
#define MHz * 1000000
#define KHz * 1000
extern struct gfb_softc *gfb_device_softcs[2][MAX_NUM_GFB_CARDS];
/*
The following 3 variables exist only because we need statically
allocated structures very early in boot to support tga_configure()...
*/
extern struct gfb_softc console;
extern video_adapter_t console_adp;
extern struct gfb_conf console_gfbc;
extern u_char console_palette_red[256];
extern u_char console_palette_green[256];
extern u_char console_palette_blue[256];
extern u_char console_cursor_palette_red[3];
extern u_char console_cursor_palette_green[3];
extern u_char console_cursor_palette_blue[3];
static struct monitor decmonitors[] = {
/* 0x0: 1280 x 1024 @ 72Hz */
{ 1280, 32, 160, 232,
1024, 3, 3, 33,
130808 KHz },
/* 0x1: 1280 x 1024 @ 66Hz */
{ 1280, 32, 160, 232,
1024, 3, 3, 33,
119840 KHz },
/* 0x2: 1280 x 1024 @ 60Hz */
{ 1280, 44, 184, 200,
1024, 3, 3, 26,
108180 KHz },
/* 0x3: 1152 x 900 @ 72Hz */
{ 1152, 64, 112, 176,
900, 6, 10, 44,
103994 KHz },
/* 0x4: 1600 x 1200 @ 65Hz */
{ 1600, 32, 192, 336,
1200, 1, 3, 46,
175 MHz },
/* 0x5: 1024 x 768 @ 70Hz */
{ 1024, 24, 136, 144,
768, 3, 6, 29,
75 MHz },
/* 0x6: 1024 x 768 @ 72Hz */
{ 1024, 16, 128, 128,
768, 1, 6, 22,
74 MHz },
/* 0x7: 1024 x 864 @ 60Hz */
{ 1024, 12, 128, 116,
864, 0, 3, 34,
69 MHz },
/* 0x8: 1024 x 768 @ 60Hz */
{ 1024, 56, 64, 200,
768, 7, 9, 26,
65 MHz },
/* 0x9: 800 x 600 @ 72Hz */
{ 800, 56, 120, 64,
600, 37, 6, 23,
50 MHz },
/* 0xa: 800 x 600 @ 60Hz */
{ 800, 40, 128, 88,
600, 1, 4, 23,
40 MHz },
/* 0xb: 640 x 480 @ 72Hz */
{ 640, 24, 40, 128,
480, 9, 3, 28,
31500 KHz },
/* 0xc: 640 x 480 @ 60Hz */
{ 640, 16, 96, 48,
480, 10, 2, 33,
25175 KHz },
/* 0xd: 1280 x 1024 @ 75Hz */
{ 1280, 16, 144, 248,
1024, 1, 3, 38,
135 MHz },
/* 0xe: 1280 x 1024 @ 60Hz */
{ 1280, 19, 163, 234,
1024, 6, 7, 44,
110 MHz },
/* 0xf: 1600 x 1200 @ 75Hz */
/* XXX -- this one's weird. rcd */
{ 1600, 32, 192, 336,
1200, 1, 3, 46,
202500 KHz }
};
#undef MHz
#undef KHz
#undef KB
#define KB * 1024
#undef MB
#define MB * 1024 * 1024
/*
* These are the 16 default VGA colors--these are replicated 16 times as the
* initial (default) color-map. The text rendering functions use entries
* 0..15 for normal foreground/background colors. The entries 128..255 are
* used for blinking entries--when "on," they contain the foreground color
* entries; when "off," they contain the background color entries...
*/
static const struct cmap {
u_char red;
u_char green;
u_char blue;
} default_cmap[16] = {
{0x00, 0x00, 0x00}, /* Black */
{0x00, 0x00, 0xff}, /* Blue */
{0x00, 0xff, 0x00}, /* Green */
{0x00, 0xc0, 0xc0}, /* Cyan */
{0xff, 0x00, 0x00}, /* Red */
{0xc0, 0x00, 0xc0}, /* Magenta */
{0xc0, 0xc0, 0x00}, /* Brown */
{0xc0, 0xc0, 0xc0}, /* Light Grey */
{0x80, 0x80, 0x80}, /* Dark Grey */
{0x80, 0x80, 0xff}, /* Light Blue */
{0x80, 0xff, 0x80}, /* Light Green */
{0x80, 0xff, 0xff}, /* Light Cyan */
{0xff, 0x80, 0x80}, /* Light Red */
{0xff, 0x80, 0xff}, /* Light Magenta */
{0xff, 0xff, 0x80}, /* Yellow */
{0xff, 0xff, 0xff} /* White */
};
extern struct gfb_font bold8x16;
/*****************************************************************************
*
* FB-generic functions
*
****************************************************************************/
static int
tga_init(int unit, video_adapter_t *adp, int flags)
{
struct gfb_softc *sc;
struct gfb_conf *gfbc;
unsigned int monitor;
int card_type;
int gder;
int deep;
int addrmask;
int cs;
int error;
gfb_reg_t ccbr;
/* Assume the best... */
error = 0;
sc = gfb_device_softcs[adp->va_model][unit];
gfbc = sc->gfbc;
/* Initialize palette counts... */
gfbc->palette.count = 256;
gfbc->cursor_palette.count = 3;
/* Initialize the adapter... */
gder = BASIC_READ_TGA_REGISTER(adp, TGA_REG_GDER);
addrmask = (gder & GDER_ADDR_MASK) >> GDER_ADDR_SHIFT;
deep = (gder & GDER_DEEP) != 0;
cs = (gder & GDER_CS) == 0;
card_type = TGA_TYPE_UNKNOWN;
adp->va_little_bitian = 1;
adp->va_little_endian = 0;
adp->va_initial_mode = 0;
adp->va_initial_bios_mode = 0;
adp->va_mode = 0;
adp->va_info.vi_mem_model = V_INFO_MM_TEXT;
adp->va_info.vi_mode = M_VGA_M80x30;
adp->va_info.vi_flags = V_INFO_COLOR;
adp->va_buffer = adp->va_mem_base;
adp->va_buffer_size = 4 MB * (1 + addrmask);
adp->va_registers = adp->va_buffer + TGA_REG_SPACE_OFFSET;
adp->va_registers_size = 2 KB;
adp->va_window = adp->va_buffer + (adp->va_buffer_size / 2);
adp->va_info.vi_window = vtophys(adp->va_window);
adp->va_window_size = (deep ? 4 MB : 2 MB);
adp->va_info.vi_window_size = adp->va_window_size;
adp->va_window_gran = adp->va_window_size;
adp->va_info.vi_window_gran = adp->va_window_gran;
adp->va_info.vi_buffer = vtophys(adp->va_buffer);
adp->va_info.vi_buffer_size = adp->va_buffer_size;
adp->va_disp_start.x = 0;
adp->va_disp_start.y = 0;
adp->va_info.vi_depth = (deep ? 32 : 8);
adp->va_info.vi_planes = adp->va_info.vi_depth / 8;
adp->va_info.vi_width = (READ_GFB_REGISTER(adp, TGA_REG_VHCR) &
VHCR_ACTIVE_MASK);
adp->va_info.vi_width |= (READ_GFB_REGISTER(adp, TGA_REG_VHCR) &
0x30000000) >> 19;
switch(adp->va_info.vi_width) {
case 0:
adp->va_info.vi_width = 8192;
break;
case 1:
adp->va_info.vi_width = 8196;
break;
default:
adp->va_info.vi_width *= 4;
break;
}
adp->va_info.vi_height = (READ_GFB_REGISTER(adp, TGA_REG_VVCR) &
VVCR_ACTIVE_MASK);
adp->va_line_width = adp->va_info.vi_width * adp->va_info.vi_depth / 8;
if(READ_GFB_REGISTER(adp, TGA_REG_VHCR) & VHCR_ODD)
adp->va_info.vi_width -= 4;
/*
Set the video base address and the cursor base address to
something known such that the video base address is at
least 1 KB past the cursor base address (the cursor is 1 KB
in size, so leave room for it)...we pick 4 KB and 0 KB,
respectively, since they begin at the top of the framebuffer
for minimal fragmentation of the address space, and this will
always leave enough room for the cursor for all implementations...
*/
/* Set the video base address... */
tga_set_win_org(sc->adp, 4 KB);
/* Set the cursor base address... */
ccbr = READ_GFB_REGISTER(sc->adp, TGA_REG_CCBR);
ccbr = (ccbr & 0xfffffc0f) | (0 << 4);
WRITE_GFB_REGISTER(sc->adp, TGA_REG_CCBR, ccbr);
/* Type the card... */
if(adp->va_type == KD_TGA) {
if(!deep) {
/* 8bpp frame buffer */
gfbc->ramdac_name = "BT485";
gfbc->ramdac_init = bt485_init;
gfbc->ramdac_rd = tga_bt485_rd;
gfbc->ramdac_wr = tga_bt485_wr;
gfbc->ramdac_save_palette = bt485_save_palette;
gfbc->ramdac_load_palette = bt485_load_palette;
gfbc->ramdac_save_cursor_palette =
bt485_save_cursor_palette;
gfbc->ramdac_load_cursor_palette =
bt485_load_cursor_palette;
gfbc->ramdac_read_hw_cursor = bt485_read_hw_cursor;
gfbc->ramdac_set_hw_cursor = bt485_set_hw_cursor;
gfbc->ramdac_set_hw_cursor_shape =
bt485_set_hw_cursor_shape;
if(addrmask == GDER_ADDR_4MB) {
/* 4MB core map; T8-01 or T8-02 */
if(!cs) {
card_type = TGA_TYPE_T8_01;
gfbc->name = "T8-01";
} else {
card_type = TGA_TYPE_T8_02;
gfbc->name = "T8-02";
}
} else if(addrmask == GDER_ADDR_8MB) {
/* 8MB core map; T8-22 */
if(cs) {/* sanity */
card_type = TGA_TYPE_T8_22;
gfbc->name = "T8-22";
}
} else if(addrmask == GDER_ADDR_16MB) {
/* 16MB core map; T8-44 */
if(cs) {/* sanity */
card_type = TGA_TYPE_T8_44;
gfbc->name = "T8-44";
}
} else if(addrmask == GDER_ADDR_32MB) {
/* 32MB core map; ??? */
card_type = TGA_TYPE_UNKNOWN;
}
} else {
/* 32bpp frame buffer */
gfbc->ramdac_name = "BT463";
gfbc->ramdac_init = bt463_init;
gfbc->ramdac_rd = tga_bt463_rd;
gfbc->ramdac_wr = tga_bt463_wr;
gfbc->builtin_save_palette = tga_builtin_save_palette;
gfbc->builtin_load_palette = tga_builtin_load_palette;
gfbc->ramdac_save_cursor_palette =
bt463_save_cursor_palette;
gfbc->ramdac_load_cursor_palette =
bt463_load_cursor_palette;
gfbc->builtin_read_hw_cursor =
tga_builtin_read_hw_cursor;
gfbc->builtin_set_hw_cursor = tga_builtin_set_hw_cursor;
gfbc->builtin_set_hw_cursor_shape =
tga_builtin_set_hw_cursor_shape;
/* 32bpp frame buffer */
if(addrmask == GDER_ADDR_4MB) {
/* 4MB core map; ??? */
card_type = TGA_TYPE_UNKNOWN;
} else if(addrmask == GDER_ADDR_8MB) {
/* 8MB core map; ??? */
card_type = TGA_TYPE_UNKNOWN;
} else if(addrmask == GDER_ADDR_16MB) {
/* 16MB core map; T32-04 or T32-08 */
if(!cs) {
card_type = TGA_TYPE_T32_04;
gfbc->name = "T32-04";
} else {
card_type = TGA_TYPE_T32_08;
gfbc->name = "T32-08";
}
} else if(addrmask == GDER_ADDR_32MB) {
/* 32MB core map; T32-88 */
if(cs) {/* sanity */
card_type = TGA_TYPE_T32_88;
gfbc->name = "T32-88";
}
}
}
}
else if(adp->va_type == KD_TGA2) {
gfbc->ramdac_name = "IBM561";
gfbc->ramdac_init = ibm561_init;
gfbc->ramdac_rd = tga2_ibm561_rd;
gfbc->ramdac_wr = tga2_ibm561_wr;
gfbc->ramdac_save_palette = ibm561_save_palette;
gfbc->ramdac_load_palette = ibm561_load_palette;
gfbc->ramdac_save_cursor_palette = ibm561_save_cursor_palette;
gfbc->ramdac_load_cursor_palette = ibm561_load_cursor_palette;
gfbc->builtin_read_hw_cursor = tga_builtin_read_hw_cursor;
gfbc->builtin_set_hw_cursor = tga_builtin_set_hw_cursor;
gfbc->builtin_set_hw_cursor_shape =
tga_builtin_set_hw_cursor_shape;
/* 4MB core map */
if(addrmask == GDER_ADDR_4MB)
card_type = TGA_TYPE_UNKNOWN;
/* 8MB core map */
else if(addrmask == GDER_ADDR_8MB) {
card_type = TGA2_TYPE_3D30;
gfbc->name = "3D30";
}
/* 16MB core map */
else if(addrmask == GDER_ADDR_16MB) {
card_type = TGA2_TYPE_4D20;
gfbc->name = "4D20";
}
else if(addrmask == GDER_ADDR_32MB)
card_type = TGA_TYPE_UNKNOWN;
}
/*
For now, just return for TGA2 cards (i.e.,
allow syscons to treat this device as a normal
VGA device, and don't do anything TGA2-specific,
e.g., only use the TGA2 card in VGA mode for now
as opposed to 2DA mode...
*/
if(adp->va_type == KD_TGA2)
return(error);
/* If we couldn't identify the card, err-out... */
if(card_type == TGA_TYPE_UNKNOWN) {
printf("tga%d: Unknown TGA type\n", unit);
error = ENODEV;
goto done;
}
/* Clear and disable interrupts... */
WRITE_GFB_REGISTER(adp, TGA_REG_SISR, 0x00000001);
/* Perform TGA2-specific initialization, if necessary... */
if(adp->va_type == KD_TGA2) {
monitor = (~READ_GFB_REGISTER(adp, TGA_REG_GREV) >> 16 ) & 0x0f;
tga2_init(sc, monitor);
}
done:
return(error);
}
static void
tga2_init(sc, monitor)
struct gfb_softc *sc;
int monitor;
{
return;
tga2_ics9110_wr(sc, decmonitors[monitor].dotclock);
WRITE_GFB_REGISTER(sc->adp, TGA_REG_VHCR,
((decmonitors[monitor].hbp / 4) << VHCR_BPORCH_SHIFT) |
((decmonitors[monitor].hsync / 4) << VHCR_HSYNC_SHIFT) |
(((decmonitors[monitor].hfp) / 4) << VHCR_FPORCH_SHIFT) |
((decmonitors[monitor].cols) / 4));
WRITE_GFB_REGISTER(sc->adp, TGA_REG_VVCR,
(decmonitors[monitor].vbp << VVCR_BPORCH_SHIFT) |
(decmonitors[monitor].vsync << VVCR_VSYNC_SHIFT) |
(decmonitors[monitor].vfp << VVCR_FPORCH_SHIFT) |
(decmonitors[monitor].rows));
WRITE_GFB_REGISTER(sc->adp, TGA_REG_VVBR, 1);
GFB_REGISTER_READWRITE_BARRIER(sc, TGA_REG_VHCR, 3);
WRITE_GFB_REGISTER(sc->adp, TGA_REG_VVVR,
READ_GFB_REGISTER(sc->adp, TGA_REG_VVVR) | 1);
GFB_REGISTER_READWRITE_BARRIER(sc, TGA_REG_VVVR, 1);
WRITE_GFB_REGISTER(sc->adp, TGA_REG_GPMR, 0xffffffff);
GFB_REGISTER_READWRITE_BARRIER(sc, TGA_REG_GPMR, 1);
}
static int
tga_query_mode(video_adapter_t *adp, video_info_t *info)
{
int error;
/* Assume the best... */
error = 0;
/* Verify that this mode is supported on this adapter... */
if(adp->va_type == KD_TGA2) {
if((info->vi_mode != TGA2_2DA_MODE) &&
(info->vi_mode != TGA2_VGA_MODE))
error = ENODEV;
}
else {
if(info->vi_mode != 0)
error = ENODEV;
}
return(error);
}
static int
tga_set_mode(video_adapter_t *adp, int mode)
{
int error;
gfb_reg_t gder;
gfb_reg_t vgae_mask;
/* Assume the best... */
error = 0;
gder = READ_GFB_REGISTER(video_adapter_t *adp, TGA_REG_GDER);
/*
Determine the adapter type first
so we know which modes are valid for it...
*/
switch(adp->va_type) {
case KD_TGA2:
/*
Verify that this mode is supported
on this adapter...
*/
switch(mode) {
case TGA2_2DA_MODE:
vgae_mask = ~0x00400000;
WRITE_GFB_REGISTER(video_adapter_t *adp, TGA_REG_GDER,
gder & vgae_mask);
adp->va_mode = mode;
break;
case TGA2_VGA_MODE:
vgae_mask = 0x00400000;
WRITE_GFB_REGISTER(video_adapter_t *adp, TGA_REG_GDER,
gder | vgae_mask);
adp->va_mode = mode;
break;
default:
error = ENODEV;
}
break;
case KD_TGA:
/*
Verify that this mode is supported
on this adapter...
*/
switch(mode) {
case 0:
break;
default:
error = ENXIO;
}
break;
default:
error = ENODEV;
}
return(error);
}
static int
tga_blank_display(video_adapter_t *adp, int mode)
{
gfb_reg_t blanked;
int error;
/* Assume the best... */
error = 0;
blanked = READ_GFB_REGISTER(adp, TGA_REG_VVVR) &
(VVR_BLANK | VVR_VIDEOVALID | VVR_CURSOR);
/* If we're not already blanked, then blank...*/
switch(mode) {
case V_DISPLAY_BLANK:
if(blanked != (VVR_VIDEOVALID | VVR_BLANK)) {
blanked = VVR_VIDEOVALID | VVR_BLANK;
WRITE_GFB_REGISTER(adp, TGA_REG_VVVR, blanked);
}
break;
case V_DISPLAY_STAND_BY:
if(blanked != VVR_BLANK) {
blanked = VVR_BLANK;
WRITE_GFB_REGISTER(adp, TGA_REG_VVVR, blanked);
}
break;
case V_DISPLAY_ON:
if(blanked != (VVR_VIDEOVALID | VVR_CURSOR)) {
blanked = VVR_VIDEOVALID | VVR_CURSOR;
WRITE_GFB_REGISTER(adp, TGA_REG_VVVR, blanked);
}
break;
default:
break;
}
return(0);
}
static int
tga_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
{
struct gfb_softc *sc;
int error;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
switch (cmd) {
case FBIOPUTCMAP:
#if 0
tga_schedule_intr(sc, bt463_load_palette_intr);
break;
#endif
case FBIO_GETWINORG:
case FBIO_SETWINORG:
case FBIO_SETDISPSTART:
case FBIO_SETLINEWIDTH:
case FBIO_GETPALETTE:
case FBIOGTYPE:
case FBIOGETCMAP:
default:
error = fb_commonioctl(adp, cmd, arg);
}
return(error);
}
static int
tga_set_border(video_adapter_t *adp, int color) {
return(ENODEV);
}
static int
tga_set_win_org(video_adapter_t *adp, off_t offset) {
gfb_reg_t vvbr;
u_int16_t window_orig;
int gder;
int deep;
int cs;
/* Get the adapter's parameters... */
gder = BASIC_READ_TGA_REGISTER(adp, TGA_REG_GDER);
deep = (gder & 0x1) != 0;
cs = (gder & 0x200) == 0;
/*
Set the window (framebuffer) origin according to the video
base address...
*/
window_orig = offset / ((1 + cs) * (1 + deep) * (1 + deep) * 2 KB);
adp->va_window_orig = window_orig * ((1 + cs) * (1 + deep) *
(1 + deep) * 2 KB);
/* Set the video base address... */
vvbr = READ_GFB_REGISTER(adp, TGA_REG_VVBR);
vvbr = (vvbr & 0xfffffe00) | window_orig;
WRITE_GFB_REGISTER(adp, TGA_REG_VVBR, vvbr);
return(0);
}
static int
tga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) {
int off;
gfb_reg_t gpxr;
gfb_reg_t gmor;
gfb_reg_t gbcr0;
gfb_reg_t gbcr1;
gfb_reg_t color;
/* Save the pixel mode... */
gmor = READ_GFB_REGISTER(adp, TGA_REG_GMOR);
/* Save the pixel mask... */
gpxr = READ_GFB_REGISTER(adp, TGA_REG_GPXR_P);
/* Save the block-color... */
gbcr0 = READ_GFB_REGISTER(adp, TGA_REG_GBCR0);
gbcr1 = READ_GFB_REGISTER(adp, TGA_REG_GBCR1);
/* Set the pixel mode (block-fill)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GMOR,
(gmor & ~GMOR_MODE_MASK) | GMOR_MODE_BLK_FILL);
/* Set the pixel mask (enable writes to all pixels)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GPXR_P, 0xffffffff);
color = ((val & 0xff00) << 24) || ((val & 0xff00) << 16) ||
((val & 0xff00) << 8) || ((val & 0xff00) << 0);
/* Set the color for the block-fill... */
WRITE_GFB_REGISTER(adp, TGA_REG_GBCR0, color);
WRITE_GFB_REGISTER(adp, TGA_REG_GBCR1, color);
/*
Just traverse the buffer, one 2K-pixel span at a time, setting
each pixel to the bolck-color...
*/
for(off = (x * y); off < ((x + cx) * (y + cy)); off += (2 KB))
WRITE_GFB_BUFFER(adp, off >> 2L, 0x000007ff);
/* Restore the pixel mode... */
WRITE_GFB_REGISTER(adp, TGA_REG_GPXR_P, gpxr);
/* Restore the pixel mask... */
WRITE_GFB_REGISTER(adp, TGA_REG_GMOR, gmor);
/* Restore the block-color... */
WRITE_GFB_REGISTER(adp, TGA_REG_GBCR0, gbcr0);
WRITE_GFB_REGISTER(adp, TGA_REG_GBCR1, gbcr1);
return(0);
}
static int
tga_bitblt(video_adapter_t *adp, ...) {
va_list args;
int i, count;
gfb_reg_t gmor;
gfb_reg_t gopr;
vm_offset_t src, dst;
va_start(args, adp);
/* Save the pixel mode... */
gmor = READ_GFB_REGISTER(adp, TGA_REG_GMOR);
/* Save the raster op... */
gopr = READ_GFB_REGISTER(adp, TGA_REG_GOPR);
/* Set the pixel mode (copy)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GMOR,
(gmor & ~GMOR_MODE_MASK) | GMOR_MODE_COPY);
/* Set the raster op (src)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GOPR, (gopr & 0xfffffff0) | 0x3);
src = (va_arg(args, vm_offset_t) + adp->va_window_orig) &
0x0000000000fffff8;
dst = (va_arg(args, vm_offset_t) + adp->va_window_orig) &
0x0000000000fffff8;
count = va_arg(args, int);
for(i = 0; i < count; i+= 64, src += 64, dst += 64) {
WRITE_GFB_REGISTER(adp, TGA_REG_GCSR, src);
WRITE_GFB_REGISTER(adp, TGA_REG_GCDR, dst);
}
/* Restore the raster op... */
WRITE_GFB_REGISTER(adp, TGA_REG_GOPR, gopr);
/* Restore the pixel mode... */
WRITE_GFB_REGISTER(adp, TGA_REG_GMOR, gmor);
va_end(args);
return(0);
}
static int
#if 0
tga_clear(video_adapter_t *adp, int n)
else
tga_clear(video_adapter_t *adp)
#endif
{
int off;
gfb_reg_t gpxr;
gfb_reg_t gmor;
gfb_reg_t gopr;
#if 0
if(n == 0) return(0);
#endif
/* Save the pixel mode... */
gmor = READ_GFB_REGISTER(adp, TGA_REG_GMOR);
/* Save the pixel mask... */
gpxr = READ_GFB_REGISTER(adp, TGA_REG_GPXR_P);
/* Save the raster op... */
gopr = READ_GFB_REGISTER(adp, TGA_REG_GOPR);
/* Set the pixel mode (opaque-fill)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GMOR,
(gmor & ~GMOR_MODE_MASK) | GMOR_MODE_OPQ_FILL);
/* Set the pixel mask (enable writes to all pixels)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GPXR_P, 0xffffffff);
/* Set the raster op (clear)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GOPR, (gopr & 0xfffffff0) | 0x00);
/*
Just traverse the buffer, one 2K-pixel span at a time, clearing
each pixel...
*/
#if 0
for(off = 0; off < (n * adp->va_line_width); off += (2 KB))
#endif
for(off = 0; off < adp->va_window_size; off += (2 KB))
WRITE_GFB_BUFFER(adp, off >> 2L, 0x000007ff);
/* Restore the pixel mask... */
WRITE_GFB_REGISTER(adp, TGA_REG_GPXR_P, gpxr);
/* Restore the raster op... */
WRITE_GFB_REGISTER(adp, TGA_REG_GOPR, gopr);
/* Restore the pixel mode... */
WRITE_GFB_REGISTER(adp, TGA_REG_GMOR, gmor);
return(0);
}
int
tga_putc(video_adapter_t *adp, vm_offset_t off, u_int8_t c, u_int8_t a)
{
int i;
gfb_reg_t gpxr;
gfb_reg_t gmor;
gfb_reg_t gopr;
gfb_reg_t gbgr;
gfb_reg_t gfgr;
gfb_reg_t mask;
int row, col;
u_int8_t *pixel;
vm_offset_t poff;
struct gfb_softc *sc;
int pixel_size;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
pixel_size = adp->va_info.vi_depth / 8;
/* Save the pixel mode... */
gmor = READ_GFB_REGISTER(adp, TGA_REG_GMOR);
/* Save the pixel mask... */
gpxr = READ_GFB_REGISTER(adp, TGA_REG_GPXR_P);
/* Save the raster op... */
gopr = READ_GFB_REGISTER(adp, TGA_REG_GOPR);
/* Save the background color... */
gbgr = READ_GFB_REGISTER(adp, TGA_REG_GBGR);
/* Save the foreground color... */
gfgr = READ_GFB_REGISTER(adp, TGA_REG_GFGR);
/* Set the pixel mode (opaque-stipple)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GMOR,
(gmor & ~GMOR_MODE_MASK) | GMOR_MODE_OPQ_STPL);
/* Set the pixel mask (enable writes to the first cwidth pixels)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GPXR_P,
(1 << adp->va_info.vi_cwidth) - 1);
/* Set the raster op (src)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GOPR, (gopr & 0xfffffff0) | 0x3);
/* Set the foreground color mask from the attribute byte... */
mask = (a & 0x80) ? a : (a & 0x0f);
/* Propagate the 8-bit mask across the full 32 bits... */
mask |= (mask << 24) | (mask << 16) | (mask << 8);
/* Set the foreground color... */
WRITE_GFB_REGISTER(adp, TGA_REG_GFGR, mask);
/* Set the background color mask from the attribute byte... */
mask = (a >> 4) & 0x07;
/* Propagate the 8-bit mask across the full 32 bits... */
mask |= (mask << 24) | (mask << 16) | (mask << 8);
/* Set the background color... */
WRITE_GFB_REGISTER(adp, TGA_REG_GBGR, mask);
/* Get the start of the array of pixels rows for this character... */
pixel = sc->gfbc->font + (c * adp->va_info.vi_cheight);
/* Calculate the new cursor position... */
row = off / adp->va_info.vi_width;
col = off % adp->va_info.vi_width;
/* Iterate over all the pixel rows for this character... */
for(i = 0; i < adp->va_info.vi_cheight; i++) {
/* Get the address of the character's pixel-row... */
poff = ((col * adp->va_info.vi_cwidth * pixel_size) +
(((row * adp->va_info.vi_cheight) + i) *
adp->va_line_width)) / sizeof(gfb_reg_t);
/* Now display the current pixel row... */
WRITE_GFB_BUFFER(adp, poff, pixel[i]);
}
/* Restore the foreground color... */
WRITE_GFB_REGISTER(adp, TGA_REG_GFGR, gfgr);
/* Restore the background color... */
WRITE_GFB_REGISTER(adp, TGA_REG_GBGR, gbgr);
/* Restore the pixel mode... */
WRITE_GFB_REGISTER(adp, TGA_REG_GPXR_P, gpxr);
/* Restore the pixel mask... */
WRITE_GFB_REGISTER(adp, TGA_REG_GMOR, gmor);
/* Restore the raster op... */
WRITE_GFB_REGISTER(adp, TGA_REG_GOPR, gopr);
return(0);
}
int
tga_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
{
int i, j, k;
gfb_reg_t gpxr;
gfb_reg_t gmor;
gfb_reg_t gopr;
gfb_reg_t row, col;
u_int8_t *pixel;
u_int8_t c;
u_int8_t a;
gfb_reg_t p;
vm_offset_t poff;
struct gfb_softc *sc;
int pixel_size;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
pixel_size = adp->va_info.vi_depth / 8;
/* If the string in empty, just return now... */
if(len == 0) return(0);
for(i = 0; i < len; i++)
tga_putc(adp, off + i, s[i] & 0x00ff, (s[i] & 0xff00) >> 8);
return(0);
/* Save the pixel mode... */
gmor = READ_GFB_REGISTER(adp, TGA_REG_GMOR);
/* Save the pixel mask... */
gpxr = READ_GFB_REGISTER(adp, TGA_REG_GPXR_P);
/* Save the raster op... */
gopr = READ_GFB_REGISTER(adp, TGA_REG_GOPR);
/* Set the pixel mode (simple)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GMOR, (gmor & 0xffffffc0) | 0x00);
/* Set the pixel mask (enable writes to all 32 pixels)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GPXR_P, (gpxr & 0xfffffff0) | 0xf);
/* Set the raster op (src)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GOPR, (gopr & 0xfffffff0) | 0x03);
/*
First, do as many characters-rows at a time as possible (as exist)...
*/
for(i = 0; (len - i) > adp->va_info.vi_width;
i += adp->va_info.vi_width) {
/*
Iterate over all the pixels for each character in the
character-row, doing a scan-line at-a-time, rather than
a character at-a-time (like tga_putc())...
*/
for(j = 0; j < adp->va_info.vi_cheight; j++) {
p = 0;
for(k = 0; k < adp->va_info.vi_width; k++) {
/*
Get this character...
*/
c = s[i + k] & 0x00ff;
/*
Get the attribute for this character...
*/
a = (s[i + k] & 0xff00) >> 8;
/*
Get the start of the array of pixels rows for
this character...
*/
pixel = sc->gfbc->font +
(c * adp->va_info.vi_cheight);
/* Shift the other pre-existing pixel rows... */
p <<= 8;
/*
Get the first pixel row for
this character...
*/
p |= pixel[j];
if (((k + 1) % sizeof(gfb_reg_t)) == 0) {
/*
Calculate the new cursor
position...
*/
row = (off + i + (k -
(sizeof(gfb_reg_t) - 1))) /
adp->va_info.vi_width;
col = (off + i + (k -
(sizeof(gfb_reg_t) - 1))) %
adp->va_info.vi_width;
/*
Get the address of the current
character's pixel-row...
*/
poff = ((col * adp->va_info.vi_cwidth *
pixel_size) + (((row *
adp->va_info.vi_cheight) + j) *
adp->va_line_width)) /
sizeof(gfb_reg_t);
/*
Now display the current
pixel row...
*/
(*vidsw[adp->va_index]->putp)(adp, poff,
p, a, sizeof(gfb_reg_t),
adp->va_info.vi_depth, 1, 0);
/* Reset (clear) p... */
p = 0;
}
}
}
}
/*
Next, do as many character-sets at a time as possible (as exist)...
*/
for(; (len - i) > sizeof(gfb_reg_t); i += sizeof(gfb_reg_t)) {
/*
Iterate over all the pixels for each character in the
character-row, doing a scan-line at-a-time, rather than
a character at-a-time (like tga_putc())...
*/
for(j = 0; j < adp->va_info.vi_cheight; j++) {
p = 0;
for(k = 0; k < sizeof(gfb_reg_t); k++) {
/*
Get this character...
*/
c = s[i + k] & 0x00ff;
/*
Get the attribute for this character...
*/
a = (s[i + k] & 0xff00) >> 8;
/*
Get the start of the array of pixels rows for
this character...
*/
pixel = sc->gfbc->font +
(c * adp->va_info.vi_cheight);
/* Shift the other pre-existing pixel rows... */
p <<= 8;
/*
Get the first pixel row for
this character...
*/
p |= pixel[j];
if (((k + 1) % sizeof(gfb_reg_t)) == 0) {
/*
Calculate the new cursor
position...
*/
row = (off + i) / adp->va_info.vi_width;
col = (off + i) % adp->va_info.vi_width;
/*
Get the address of the current
character's pixel-row...
*/
poff = ((col * adp->va_info.vi_cwidth *
pixel_size) + (((row *
adp->va_info.vi_cheight) + j) *
adp->va_line_width)) /
sizeof(gfb_reg_t);
/*
Now display the current
pixel row...
*/
(*vidsw[adp->va_index]->putp)(adp, poff,
p, a, sizeof(gfb_reg_t),
adp->va_info.vi_depth, 1, 0);
/* Reset (clear) p... */
p = 0;
}
}
}
}
/* Restore the pixel mode... */
WRITE_GFB_REGISTER(adp, TGA_REG_GPXR_P, gpxr);
/* Restore the pixel mask... */
WRITE_GFB_REGISTER(adp, TGA_REG_GMOR, gmor);
/* Restore the raster op... */
WRITE_GFB_REGISTER(adp, TGA_REG_GOPR, gopr);
/* Finally, do the remaining characters a character at-a-time... */
for(; i < len; i++) {
/*
Get this character...
*/
c = s[i] & 0x00ff;
/*
Get the attribute for this character...
*/
a = (s[i] & 0xff00) >> 8;
/*
Display this character...
*/
tga_putc(adp, off + i, c, a);
}
return(0);
}
int
tga_putm(video_adapter_t *adp, int x, int y, u_int8_t *pixel_image,
gfb_reg_t pixel_mask, int size)
{
gfb_reg_t gpxr;
gfb_reg_t gmor;
gfb_reg_t gopr;
int i, pixel_size;
vm_offset_t poff;
pixel_size = adp->va_info.vi_depth / 8;
/* Save the pixel mode... */
gmor = READ_GFB_REGISTER(adp, TGA_REG_GMOR);
/* Save the pixel mask... */
gpxr = READ_GFB_REGISTER(adp, TGA_REG_GPXR_P);
/* Save the raster op... */
gopr = READ_GFB_REGISTER(adp, TGA_REG_GOPR);
/* Set the pixel mode (simple)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GMOR,
(gmor & ~GMOR_MODE_MASK) | GMOR_MODE_SIMPLE);
/* Set the pixel mask (enable writes to the first 8 pixels)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GPXR_P, (gpxr & 0xfffffff0) | 0xf);
/* Set the raster op (src)... */
WRITE_GFB_REGISTER(adp, TGA_REG_GOPR, (gopr & 0xfffffff0) | 0x3);
/* Iterate over all the pixel rows for the mouse pointer... */
for(i = 0; i < size; i++) {
/* Get the address of the mouse pointer's pixel-row... */
poff = ((x * pixel_size) + ((y + i) * adp->va_line_width)) /
sizeof(gfb_reg_t);
/* Now display the current pixel-row... */
(*vidsw[adp->va_index]->putp)(adp, poff, pixel_image[i],
pixel_mask, sizeof(u_int8_t), adp->va_info.vi_depth, 1, 0);
}
/* Restore the pixel mode... */
WRITE_GFB_REGISTER(adp, TGA_REG_GPXR_P, gpxr);
/* Restore the pixel mask... */
WRITE_GFB_REGISTER(adp, TGA_REG_GMOR, gmor);
/* Restore the raster op... */
WRITE_GFB_REGISTER(adp, TGA_REG_GOPR, gopr);
return(0);
}
static int
tga_error(void)
{
return(0);
}
/*****************************************************************************
*
* TGA-specific functions
*
****************************************************************************/
static int
tga_builtin_save_palette(video_adapter_t *adp, video_color_palette_t *palette)
{
int i;
int error;
struct gfb_softc *sc;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
/*
* We store 8 bit values in the palette buffer, while the standard
* VGA has 6 bit DAC .
*/
outb(PALRADR, 0x00);
for(i = 0; i < palette->count; ++i) {
palette->red[i] = inb(PALDATA) << 2;
palette->green[i] = inb(PALDATA) << 2;
palette->blue[i] = inb(PALDATA) << 2;
}
return(error);
}
static int
tga_builtin_load_palette(video_adapter_t *adp, video_color_palette_t *palette)
{
int i;
int error;
struct gfb_softc *sc;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
/*
* We store 8 bit values in the palette buffer, while the standard
* VGA has 6 bit DAC .
*/
outb(PIXMASK, 0xff);
outb(PALWADR, 0x00);
for(i = 0; i < palette->count; ++i) {
outb(PALDATA, palette->red[i] >> 2);
outb(PALDATA, palette->green[i] >> 2);
outb(PALDATA, palette->blue[i] >> 2);
}
return(error);
}
static int
tga2_builtin_save_palette(video_adapter_t *adp, video_color_palette_t *palette)
{
int i;
int error;
struct gfb_softc *sc;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_LOW,
BT463_IREG_CPALETTE_RAM & 0xff);
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_HIGH,
(BT463_IREG_CPALETTE_RAM >> 8) & 0xff);
/* spit out the colormap data */
for(i = 0; i < palette->count; i++) {
sc->gfbc->ramdac_wr(sc, BT463_REG_CMAP_DATA,
palette->red[i]);
sc->gfbc->ramdac_wr(sc, BT463_REG_CMAP_DATA,
palette->green[i]);
sc->gfbc->ramdac_wr(sc, BT463_REG_CMAP_DATA,
palette->blue[i]);
}
return(error);
}
static int
tga2_builtin_load_palette(video_adapter_t *adp, video_color_palette_t *palette)
{
int i;
int error;
struct gfb_softc *sc;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_LOW,
BT463_IREG_CPALETTE_RAM & 0xff);
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_HIGH,
(BT463_IREG_CPALETTE_RAM >> 8) & 0xff);
/* spit out the colormap data */
for(i = 0; i < palette->count; i++) {
sc->gfbc->ramdac_wr(sc, BT463_REG_CMAP_DATA,
palette->red[i]);
sc->gfbc->ramdac_wr(sc, BT463_REG_CMAP_DATA,
palette->green[i]);
sc->gfbc->ramdac_wr(sc, BT463_REG_CMAP_DATA,
palette->blue[i]);
}
return(error);
}
static int
tga2_builtin_save_cursor_palette(video_adapter_t *adp, struct fbcmap *palette)
{
int i;
int error;
struct gfb_softc *sc;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_LOW,
BT463_IREG_CURSOR_COLOR_0 & 0xff);
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_HIGH,
(BT463_IREG_CURSOR_COLOR_0 >> 8) & 0xff);
/* spit out the cursor data */
for(i = 0; i < palette->count; i++) {
BTWNREG(sc, palette->red[i]);
BTWNREG(sc, palette->green[i]);
BTWNREG(sc, palette->blue[i]);
}
return(error);
}
static int
tga2_builtin_load_cursor_palette(video_adapter_t *adp, struct fbcmap *palette)
{
int i;
int error;
struct gfb_softc *sc;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_LOW,
BT463_IREG_CURSOR_COLOR_0 & 0xff);
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_HIGH,
(BT463_IREG_CURSOR_COLOR_0 >> 8) & 0xff);
/* spit out the cursor data */
for(i = 0; i < palette->count; i++) {
BTWNREG(sc, palette->red[i]);
BTWNREG(sc, palette->green[i]);
BTWNREG(sc, palette->blue[i]);
}
return(error);
}
static int
tga_builtin_read_hw_cursor(video_adapter_t *adp, int col, int row)
{
gfb_reg_t cxyr;
int error;
/* Assume the best... */
error = 0;
cxyr = READ_GFB_REGISTER(adp, TGA_REG_CXYR) | 0x00ffffff;
*col = (cxyr & 0x00000fff) / adp->va_info.vi_cwidth;
*row = ((cxyr & 0x00fff000) >> 12) / adp->va_info.vi_cheight;
return(error);
}
static int
tga_builtin_set_hw_cursor(video_adapter_t *adp, int col, int row)
{
int error;
gfb_reg_t cxyr;
gfb_reg_t vvvr;
/* Assume the best... */
error = 0;
vvvr = READ_GFB_REGISTER(adp, TGA_REG_VVVR);
/*
Make sure the parameters are in range for the screen
size...
*/
if((row > adp->va_info.vi_height) ||
(col > adp->va_info.vi_width))
error = EINVAL;
else if(((row * adp->va_info.vi_cheight) > 0x0fff) ||
((col * adp->va_info.vi_cwidth) > 0x0fff))
error = EINVAL;
/*
If either of the parameters is less than 0,
then hide the cursor...
*/
else if((row < 0) || (col < 0)) {
if((vvvr & 0x00000004) != 0) {
vvvr &= 0xfffffffb;
WRITE_GFB_REGISTER(adp, TGA_REG_VVVR, vvvr);
}
}
/* Otherwise, just move the cursor as requested... */
else {
cxyr = READ_GFB_REGISTER(adp, TGA_REG_CXYR) & 0xff000000;
cxyr |= ((row * adp->va_info.vi_cheight) << 12);
cxyr |= (col * adp->va_info.vi_cwidth);
WRITE_GFB_REGISTER(adp, TGA_REG_CXYR, cxyr);
if((vvvr & 0x00000004) == 0) {
vvvr |= 0x00000004;
WRITE_GFB_REGISTER(adp, TGA_REG_VVVR, vvvr);
}
}
return(error);
}
static int
tga_builtin_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
int cellsize, int blink)
{
int i, j;
vm_offset_t cba;
gfb_reg_t window_orig;
gfb_reg_t ccbr;
gfb_reg_t vvvr;
int error;
/* Assume the best... */
error = 0;
vvvr = READ_GFB_REGISTER(adp, TGA_REG_VVVR);
/*
Make sure the parameters are in range for the cursor
(it's a 64x64 cursor)...
*/
if(height > 64)
error = EINVAL;
/* If height is less than or equal to 0, then hide the cursor... */
else if(height <= 0) {
if((vvvr & 0x00000004) != 0) {
vvvr &= 0xfffffffb;
WRITE_GFB_REGISTER(adp, TGA_REG_VVVR, vvvr);
}
}
/* Otherwise, just resize the cursor as requested... */
else {
ccbr = READ_GFB_REGISTER(adp, TGA_REG_CCBR);
ccbr &= 0xffff03ff;
ccbr |= ((height - 1) << 10);
WRITE_GFB_REGISTER(adp, TGA_REG_CCBR, ccbr);
if((vvvr & 0x00000004) == 0) {
vvvr |= 0x00000004;
WRITE_GFB_REGISTER(adp, TGA_REG_VVVR, vvvr);
}
/* Save the window origin... */
window_orig = adp->va_window_orig;
/*
Fill in the cursor image (64 rows of 64 pixels per cursor
row at 2 bits-per-pixel, so 64 rows of 16 bytes each)--we
set va_window_orig to the cursor base address temporarily
so that we can write to the cursor image...
*/
cba = (READ_GFB_REGISTER(adp, TGA_REG_CCBR) & 0xfffffc0f) >> 4;
adp->va_window_orig = cba;
for(i = 0; i < (64 - height); i++) {
WRITE_GFB_BUFFER(adp, cba++, 0x00000000);
WRITE_GFB_BUFFER(adp, cba++, 0x00000000);
}
for(; i < 64; i++) {
for(j = 0; j < (((64 - cellsize) / 8) /
sizeof(gfb_reg_t)); j++)
WRITE_GFB_BUFFER(adp, cba++, 0x00000000);
for(; j < ((64 / 8) / sizeof(gfb_reg_t)); j++)
WRITE_GFB_BUFFER(adp, cba++, 0xffffffff);
}
/* Restore the window origin... */
adp->va_window_orig = window_orig;
}
return(error);
}
static void
bt463_load_palette_intr(struct gfb_softc *sc)
{
sc->gfbc->ramdac_save_palette(sc->adp, &sc->gfbc->palette);
}
static void
bt463_load_cursor_palette_intr(struct gfb_softc *sc)
{
sc->gfbc->ramdac_load_cursor_palette(sc->adp, &sc->gfbc->cursor_palette);
}
static int
tga_schedule_intr(struct gfb_softc *sc, void (*f)(struct gfb_softc *))
{
/* Busy-wait for the previous interrupt to complete... */
while((READ_GFB_REGISTER(sc->adp, TGA_REG_SISR) & 0x00000001) != 0);
/* Arrange for f to be called at the next end-of-frame interrupt... */
sc->gfbc->ramdac_intr = f;
/* Enable the interrupt... */
WRITE_GFB_REGISTER(sc->adp, TGA_REG_SISR, 0x00010000);
return(0);
}
static u_int8_t
tga_bt485_rd(struct gfb_softc *sc, u_int btreg)
{
gfb_reg_t rdval;
if(btreg > BT485_REG_MAX)
panic("tga_ramdac_rd: reg %d out of range\n", btreg);
WRITE_GFB_REGISTER(sc->adp, TGA_REG_EPSR, (btreg << 1) | 0x1);
GFB_REGISTER_WRITE_BARRIER(sc, TGA_REG_EPSR, 1);
rdval = READ_GFB_REGISTER(sc->adp, TGA_REG_EPDR);
return((rdval >> 16) & 0xff);
}
static void
tga_bt485_wr(struct gfb_softc *sc, u_int btreg, u_int8_t val)
{
if(btreg > BT485_REG_MAX)
panic("tga_ramdac_wr: reg %d out of range\n", btreg);
WRITE_GFB_REGISTER(sc->adp, TGA_REG_EPDR,
(btreg << 9) | (0 << 8 ) | val);
GFB_REGISTER_WRITE_BARRIER(sc, TGA_REG_EPDR, 1);
}
static u_int8_t
tga2_ibm561_rd(struct gfb_softc *sc, u_int btreg)
{
bus_space_handle_t ramdac;
u_int8_t retval;
if(btreg > BT485_REG_MAX)
panic("tga_ramdac_rd: reg %d out of range\n", btreg);
ramdac = sc->bhandle + TGA2_MEM_RAMDAC + (0xe << 12) + (btreg << 8);
retval = bus_space_read_4(sc->btag, ramdac, 0) & 0xff;
bus_space_barrier(sc->btag, ramdac, 0, 4, BUS_SPACE_BARRIER_READ);
return(retval);
}
static void
tga2_ibm561_wr(struct gfb_softc *sc, u_int btreg, u_int8_t val)
{
bus_space_handle_t ramdac;
if(btreg > BT485_REG_MAX)
panic("tga_ramdac_wr: reg %d out of range\n", btreg);
ramdac = sc->bhandle + TGA2_MEM_RAMDAC + (0xe << 12) + (btreg << 8);
bus_space_write_4(sc->btag, ramdac, 0, val & 0xff);
bus_space_barrier(sc->btag, ramdac, 0, 4, BUS_SPACE_BARRIER_WRITE);
}
static u_int8_t
tga_bt463_rd(struct gfb_softc *sc, u_int btreg)
{
gfb_reg_t rdval;
/*
* Strobe CE# (high->low->high) since status and data are latched on
* the falling and rising edges (repsectively) of this active-low
* signal.
*/
GFB_REGISTER_WRITE_BARRIER(sc, TGA_REG_EPSR, 1);
WRITE_GFB_REGISTER(sc->adp, TGA_REG_EPSR, (btreg << 2) | 2 | 1);
GFB_REGISTER_WRITE_BARRIER(sc, TGA_REG_EPSR, 1);
WRITE_GFB_REGISTER(sc->adp, TGA_REG_EPSR, (btreg << 2) | 2 | 0);
GFB_REGISTER_READ_BARRIER(sc, TGA_REG_EPSR, 1);
rdval = READ_GFB_REGISTER(sc->adp, TGA_REG_EPDR);
GFB_REGISTER_WRITE_BARRIER(sc, TGA_REG_EPSR, 1);
WRITE_GFB_REGISTER(sc->adp, TGA_REG_EPSR, (btreg << 2) | 2 | 1);
return((rdval >> 16) & 0xff);
}
static void
tga_bt463_wr(struct gfb_softc *sc, u_int btreg, u_int8_t val)
{
/*
* In spite of the 21030 documentation, to set the MPU bus bits for
* a write, you set them in the upper bits of EPDR, not EPSR.
*/
/*
* Strobe CE# (high->low->high) since status and data are latched on
* the falling and rising edges of this active-low signal.
*/
GFB_REGISTER_WRITE_BARRIER(sc, TGA_REG_EPDR, 1);
WRITE_GFB_REGISTER(sc->adp, TGA_REG_EPDR, (btreg << 10) | 0x100 | val);
GFB_REGISTER_WRITE_BARRIER(sc, TGA_REG_EPDR, 1);
WRITE_GFB_REGISTER(sc->adp, TGA_REG_EPDR, (btreg << 10) | 0x000 | val);
GFB_REGISTER_WRITE_BARRIER(sc, TGA_REG_EPDR, 1);
WRITE_GFB_REGISTER(sc->adp, TGA_REG_EPDR, (btreg << 10) | 0x100 | val);
}
static void
tga2_ics9110_wr(struct gfb_softc *sc, int dotclock)
{
bus_space_handle_t clock;
gfb_reg_t valU;
int N, M, R, V, X;
int i;
switch(dotclock) {
case 130808000:
N = 0x40; M = 0x7; V = 0x0; X = 0x1; R = 0x1; break;
case 119840000:
N = 0x2d; M = 0x2b; V = 0x1; X = 0x1; R = 0x1; break;
case 108180000:
N = 0x11; M = 0x9; V = 0x1; X = 0x1; R = 0x2; break;
case 103994000:
N = 0x6d; M = 0xf; V = 0x0; X = 0x1; R = 0x1; break;
case 175000000:
N = 0x5F; M = 0x3E; V = 0x1; X = 0x1; R = 0x1; break;
case 75000000:
N = 0x6e; M = 0x15; V = 0x0; X = 0x1; R = 0x1; break;
case 74000000:
N = 0x2a; M = 0x41; V = 0x1; X = 0x1; R = 0x1; break;
case 69000000:
N = 0x35; M = 0xb; V = 0x0; X = 0x1; R = 0x1; break;
case 65000000:
N = 0x6d; M = 0x0c; V = 0x0; X = 0x1; R = 0x2; break;
case 50000000:
N = 0x37; M = 0x3f; V = 0x1; X = 0x1; R = 0x2; break;
case 40000000:
N = 0x5f; M = 0x11; V = 0x0; X = 0x1; R = 0x2; break;
case 31500000:
N = 0x16; M = 0x05; V = 0x0; X = 0x1; R = 0x2; break;
case 25175000:
N = 0x66; M = 0x1d; V = 0x0; X = 0x1; R = 0x2; break;
case 135000000:
N = 0x42; M = 0x07; V = 0x0; X = 0x1; R = 0x1; break;
case 110000000:
N = 0x60; M = 0x32; V = 0x1; X = 0x1; R = 0x2; break;
case 202500000:
N = 0x60; M = 0x32; V = 0x1; X = 0x1; R = 0x2; break;
default:
panic("unrecognized clock rate %d\n", dotclock);
}
/* XXX -- hard coded, bad */
valU = N | ( M << 7 ) | (V << 14);
valU |= (X << 15) | (R << 17);
valU |= 0x17 << 19;
clock = sc->bhandle + TGA2_MEM_EXTDEV + TGA2_MEM_CLOCK + (0xe << 12);
for(i = 24; i > 0; i--) {
gfb_reg_t writeval;
writeval = valU & 0x1;
if (i == 1)
writeval |= 0x2;
valU >>= 1;
bus_space_write_4(sc->btag, clock, 0, writeval);
bus_space_barrier(sc->btag, clock, 0, 4,
BUS_SPACE_BARRIER_WRITE);
}
clock = sc->bhandle + TGA2_MEM_EXTDEV + TGA2_MEM_CLOCK + (0xe << 12) +
(0x1 << 11) + (0x1 << 11);
bus_space_write_4(sc->btag, clock, 0, 0x0);
bus_space_barrier(sc->btag, clock, 0, 0, BUS_SPACE_BARRIER_WRITE);
}
/*****************************************************************************
*
* BrookTree RAMDAC-specific functions
*
****************************************************************************/
static void
bt463_init(struct gfb_softc *sc)
{
int i;
return;
/*
* Init the BT463 for normal operation.
*/
/*
* Setup:
* reg 0: 4:1 multiplexing, 25/75 blink.
* reg 1: Overlay mapping: mapped to common palette,
* 14 window type entries, 24-plane configuration mode,
* 4 overlay planes, underlays disabled, no cursor.
* reg 2: sync-on-green enabled, pedestal enabled.
*/
BTWREG(sc, BT463_IREG_COMMAND_0, 0x40);
BTWREG(sc, BT463_IREG_COMMAND_1, 0x48);
BTWREG(sc, BT463_IREG_COMMAND_2, 0xC0);
/*
* Initialize the read mask.
*/
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_LOW,
BT463_IREG_READ_MASK_P0_P7 & 0xff);
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_HIGH,
(BT463_IREG_READ_MASK_P0_P7 >> 8) & 0xff);
for(i = 0; i < 4; i++)
BTWNREG(sc, 0xff);
/*
* Initialize the blink mask.
*/
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_LOW,
BT463_IREG_READ_MASK_P0_P7 & 0xff);
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_HIGH,
(BT463_IREG_READ_MASK_P0_P7 >> 8) & 0xff);
for(i = 0; i < 4; i++)
BTWNREG(sc, 0);
/*
* Clear test register
*/
BTWREG(sc, BT463_IREG_TEST, 0);
/*
* Initalize the RAMDAC info struct to hold all of our
* data, and fill it in.
*/
/* Initialize the window type table:
*
* Entry 0: 24-plane truecolor, overlays enabled, bypassed.
*
* Lookup table bypass: yes ( 1 << 23 & 0x800000) 800000
* Colormap address: 0x000 (0x000 << 17 & 0x7e0000) 0
* Overlay mask: 0xf ( 0xf << 13 & 0x01e000) 1e000
* Overlay location: P<27:24> ( 0 << 12 & 0x001000) 0
* Display mode: Truecolor ( 0 << 9 & 0x000e00) 000
* Number of planes: 8 ( 8 << 5 & 0x0001e0) 100
* Plane shift: 0 ( 0 << 0 & 0x00001f) 0
* --------
* 0x81e100
*/
#if 0
data->window_type[0] = 0x81e100;
#endif
/* Entry 1: 8-plane pseudocolor in the bottom 8 bits,
* overlays enabled, colormap starting at 0.
*
* Lookup table bypass: no ( 0 << 23 & 0x800000) 0
* Colormap address: 0x000 (0x000 << 17 & 0x7e0000) 0
* Overlay mask: 0xf ( 0xf << 13 & 0x01e000) 0x1e000
* Overlay location: P<27:24> ( 0 << 12 & 0x001000) 0
* Display mode: Pseudocolor ( 1 << 9 & 0x000e00) 0x200
* Number of planes: 8 ( 8 << 5 & 0x0001e0) 0x100
* Plane shift: 16 ( 0x10 << 0 & 0x00001f) 10
* --------
* 0x01e310
*/
#if 0
data->window_type[1] = 0x01e310;
#endif
/* The colormap interface to the world only supports one colormap,
* so having an entry for the 'alternate' colormap in the bt463
* probably isn't useful.
*/
/* Fill the remaining table entries with clones of entry 0 until we
* figure out a better use for them.
*/
#if 0
for(i = 2; i < BT463_NWTYPE_ENTRIES; i++) {
data->window_type[i] = 0x81e100;
}
#endif
tga_schedule_intr(sc, bt463_update_window_type);
tga_schedule_intr(sc, bt463_load_cursor_palette_intr);
tga_schedule_intr(sc, bt463_load_palette_intr);
}
static void
bt463_update_window_type(struct gfb_softc *sc)
{
int i;
/* The Bt463 won't accept window type data except during a blanking
* interval, so we do this early in the interrupt.
* Blanking the screen might also be a good idea, but it can cause
* unpleasant flashing and is hard to do from this side of the
* ramdac interface.
*/
/* spit out the window type data */
for(i = 0; i < BT463_NWTYPE_ENTRIES; i++) {
#if 0
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_LOW,
(BT463_IREG_WINDOW_TYPE_TABLE + i) & 0xff);
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_HIGH,
((BT463_IREG_WINDOW_TYPE_TABLE + i) >> 8) & 0xff);
BTWNREG(sc, (data->window_type[i]) & 0xff);
BTWNREG(sc, (data->window_type[i] >> 8) & 0xff);
BTWNREG(sc, (data->window_type[i] >> 16) & 0xff);
#endif
}
}
static int
bt463_save_palette(video_adapter_t *adp, video_color_palette_t *palette)
{
struct gfb_softc *sc;
int error, i;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_LOW,
BT463_IREG_CPALETTE_RAM & 0xff);
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_HIGH,
(BT463_IREG_CPALETTE_RAM >> 8) & 0xff);
/* get the colormap data */
for(i = 0; i < palette->count; i++) {
palette->red[i] = sc->gfbc->ramdac_rd(sc, BT463_REG_CMAP_DATA);
palette->green[i] = sc->gfbc->ramdac_rd(sc,
BT463_REG_CMAP_DATA);
palette->blue[i] = sc->gfbc->ramdac_rd(sc, BT463_REG_CMAP_DATA);
}
return(error);
}
static int
bt463_load_palette(video_adapter_t *adp, video_color_palette_t *palette)
{
struct gfb_softc *sc;
int error, i;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_LOW,
BT463_IREG_CPALETTE_RAM & 0xff);
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_HIGH,
(BT463_IREG_CPALETTE_RAM >> 8) & 0xff);
/* spit out the colormap data */
for(i = 0; i < palette->count; i++) {
sc->gfbc->ramdac_wr(sc, BT463_REG_CMAP_DATA, palette->red[i]);
sc->gfbc->ramdac_wr(sc, BT463_REG_CMAP_DATA, palette->green[i]);
sc->gfbc->ramdac_wr(sc, BT463_REG_CMAP_DATA, palette->blue[i]);
}
return(error);
}
static int
bt463_save_cursor_palette(video_adapter_t *adp, struct fbcmap *palette)
{
struct gfb_softc *sc;
int error, i;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_LOW,
BT463_IREG_CURSOR_COLOR_0 & 0xff);
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_HIGH,
(BT463_IREG_CURSOR_COLOR_0 >> 8) & 0xff);
/* spit out the cursor data */
for(i = 0; i < palette->count; i++) {
palette->red[i] = BTRNREG(sc);
palette->green[i] = BTRNREG(sc);
palette->blue[i] = BTRNREG(sc);
}
return(error);
}
static int
bt463_load_cursor_palette(video_adapter_t *adp, struct bfcmap *palette)
{
struct gfb_softc *sc;
int error, i;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_LOW,
BT463_IREG_CURSOR_COLOR_0 & 0xff);
sc->gfbc->ramdac_wr(sc, BT463_REG_ADDR_HIGH,
(BT463_IREG_CURSOR_COLOR_0 >> 8) & 0xff);
/* spit out the cursor data */
for(i = 0; i < palette->count; i++) {
BTWNREG(sc, palette->red[i]);
BTWNREG(sc, palette->green[i]);
BTWNREG(sc, palette->blue[i]);
}
return(error);
}
static void
bt485_init(struct gfb_softc *sc)
{
int i, j, num_cmap_entries;
u_int8_t regval;
regval = sc->gfbc->ramdac_rd(sc, BT485_REG_COMMAND_0);
/*
* Set the RAMDAC to 8 bit resolution, rather than 6 bit
* resolution.
*/
regval |= 0x02;
/*
* Set the RAMDAC to sync-on-green.
*/
regval |= 0x08;
sc->gfbc->ramdac_wr(sc, BT485_REG_COMMAND_0, regval);
#if 0
/* Set the RAMDAC to 8BPP (no interesting options). */
sc->gfbc->ramdac_wr(sc, BT485_REG_COMMAND_1, 0x40);
/* Disable the cursor (for now) */
regval = sc->gfbc->ramdac_rd(sc, BT485_REG_COMMAND_2);
regval &= ~0x03;
regval |= 0x24;
sc->gfbc->ramdac_wr(sc, BT485_REG_COMMAND_2, regval);
/* Use a 64x64x2 cursor */
sc->gfbc->ramdac_wr(sc, BT485_REG_PCRAM_WRADDR, BT485_IREG_COMMAND_3);
regval = sc->gfbc->ramdac_rd(sc, BT485_REG_EXTENDED);
regval |= 0x04;
regval |= 0x08;
sc->gfbc->ramdac_wr(sc, BT485_REG_PCRAM_WRADDR, BT485_IREG_COMMAND_3);
sc->gfbc->ramdac_wr(sc, BT485_REG_EXTENDED, regval);
/* Set the Pixel Mask to something useful */
sc->gfbc->ramdac_wr(sc, BT485_REG_PIXMASK, 0xff);
#endif
/* Generate the cursor color map (Light-Grey)... */
for(i = 0; i < sc->gfbc->cursor_palette.count; i++) {
sc->gfbc->cursor_palette.red[i] = default_cmap[7].red;
sc->gfbc->cursor_palette.green[i] = default_cmap[7].green;
sc->gfbc->cursor_palette.blue[i] = default_cmap[7].blue;
}
#if 0
/* Enable cursor... */
regval = sc->gfbc->ramdac_rd(sc, BT485_REG_COMMAND_2);
if(!(regval & 0x01)) {
regval |= 0x01;
sc->gfbc->ramdac_wr(sc, BT485_REG_COMMAND_2, regval);
}
else if(regval & 0x03) {
regval &= ~0x03;
sc->gfbc->ramdac_wr(sc, BT485_REG_COMMAND_2, regval);
}
#endif
/* Generate the screen color map... */
num_cmap_entries = sizeof(default_cmap) / sizeof(struct cmap);
for(i = 0; i < sc->gfbc->palette.count / num_cmap_entries; i++)
for(j = 0; j < num_cmap_entries; j++) {
sc->gfbc->palette.red[(num_cmap_entries * i) + j] =
default_cmap[j].red;
sc->gfbc->palette.green[(num_cmap_entries * i) + j] =
default_cmap[j].green;
sc->gfbc->palette.blue[(num_cmap_entries * i) + j] =
default_cmap[j].blue;
}
}
static int
bt485_save_palette(video_adapter_t *adp, video_color_palette_t *palette)
{
struct gfb_softc *sc;
int error, i;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
/* addr[9:0] assumed to be 0 */
/* set addr[7:0] to 0 */
sc->gfbc->ramdac_wr(sc, BT485_REG_PCRAM_WRADDR, 0x00);
/* spit out the color data */
for(i = 0; i < palette->count; i++) {
palette->red[i] = sc->gfbc->ramdac_rd(sc, BT485_REG_PALETTE);
palette->green[i] = sc->gfbc->ramdac_rd(sc, BT485_REG_PALETTE);
palette->blue[i] = sc->gfbc->ramdac_rd(sc, BT485_REG_PALETTE);
}
return(error);
}
static int
bt485_load_palette(video_adapter_t *adp, video_color_palette_t *palette)
{
struct gfb_softc *sc;
int error, i;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
/* addr[9:0] assumed to be 0 */
/* set addr[7:0] to 0 */
sc->gfbc->ramdac_wr(sc, BT485_REG_PCRAM_WRADDR, 0x00);
/* spit out the color data */
for(i = 0; i < palette->count; i++) {
sc->gfbc->ramdac_wr(sc, BT485_REG_PALETTE, palette->red[i]);
sc->gfbc->ramdac_wr(sc, BT485_REG_PALETTE, palette->green[i]);
sc->gfbc->ramdac_wr(sc, BT485_REG_PALETTE, palette->blue[i]);
}
return(error);
}
static int
bt485_save_cursor_palette(video_adapter_t *adp, struct fbcmap *palette)
{
struct gfb_softc *sc;
int error, i;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
/* addr[9:0] assumed to be 0 */
/* set addr[7:0] to 1 */
sc->gfbc->ramdac_wr(sc, BT485_REG_COC_WRADDR, 0x01);
/* spit out the cursor color data */
for(i = 0; i < palette->count; i++) {
palette->red[i] = sc->gfbc->ramdac_rd(sc, BT485_REG_COCDATA);
palette->green[i] = sc->gfbc->ramdac_rd(sc, BT485_REG_COCDATA);
palette->blue[i] = sc->gfbc->ramdac_rd(sc, BT485_REG_COCDATA);
}
return(error);
}
static int
bt485_load_cursor_palette(video_adapter_t *adp, struct fbcmap *palette)
{
struct gfb_softc *sc;
int error, i;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
/* addr[9:0] assumed to be 0 */
/* set addr[7:0] to 1 */
sc->gfbc->ramdac_wr(sc, BT485_REG_COC_WRADDR, 0x01);
/* spit out the cursor color data */
for(i = 0; i < palette->count; i++) {
sc->gfbc->ramdac_wr(sc, BT485_REG_COCDATA, palette->red[i]);
sc->gfbc->ramdac_wr(sc, BT485_REG_COCDATA, palette->green[i]);
sc->gfbc->ramdac_wr(sc, BT485_REG_COCDATA, palette->blue[i]);
}
return(error);
}
static int
bt485_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
{
struct gfb_softc *sc;
int error, s;
error = 0;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
s = spltty();
*col = (sc->gfbc->ramdac_rd(sc, BT485_REG_CURSOR_X_HIGH) & 0x0f) << 8;
*col |= sc->gfbc->ramdac_rd(sc, BT485_REG_CURSOR_X_LOW) & 0xff;
*col /= adp->va_info.vi_cwidth;
*col -= 8;
*row = (sc->gfbc->ramdac_rd(sc, BT485_REG_CURSOR_Y_HIGH) & 0x0f) << 8;
*row |= sc->gfbc->ramdac_rd(sc, BT485_REG_CURSOR_Y_LOW) & 0xff;
*row /= adp->va_info.vi_cheight;
*row -= 4;
splx(s);
return(error);
}
static int
bt485_set_hw_cursor(video_adapter_t *adp, int col, int row)
{
struct gfb_softc *sc;
int error, s;
error = 0;
/* Make sure the parameters are in range for the screen
size... */
if((row > adp->va_info.vi_height) || (col > adp->va_info.vi_width))
error = EINVAL;
else if(((row * adp->va_info.vi_cheight) > 0x0fff) ||
((col * adp->va_info.vi_cwidth) > 0x0fff))
error = EINVAL;
else if((row < 0) || (col < 0)) {
/* If either of the parameters is less than 0, then hide the
cursor... */
col = -8;
row = -4;
} else {
/* Otherwise, just move the cursor as requested... */
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
s = spltty();
sc->gfbc->ramdac_wr(sc, BT485_REG_CURSOR_X_LOW,
((col + 8) * adp->va_info.vi_cwidth) & 0xff);
sc->gfbc->ramdac_wr(sc, BT485_REG_CURSOR_X_HIGH,
(((col + 8) * adp->va_info.vi_cwidth) >> 8) & 0x0f);
sc->gfbc->ramdac_wr(sc, BT485_REG_CURSOR_Y_LOW,
((row + 4) * adp->va_info.vi_cheight) & 0xff);
sc->gfbc->ramdac_wr(sc, BT485_REG_CURSOR_Y_HIGH,
(((row + 4) * adp->va_info.vi_cheight) >> 8) & 0x0f);
splx(s);
}
return(error);
}
static int
bt485_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
int cellsize, int blink)
{
struct gfb_softc *sc;
int error, cell_count, count, i, j;
u_int8_t regval;
error = 0;
cellsize /= 2;
sc = gfb_device_softcs[adp->va_model][adp->va_unit];
/*
Make sure the parameters are in range for the cursor
(it's a 64x64 cursor)...
*/
if(height > 64)
error = EINVAL;
else if(height <= 0) {
/* If height is less than or equal to 0, then hide the
cursor... */
} else {
/* Otherwise, just resize the cursor as requested... */
/* 64 pixels per cursor-row, 2 bits-per-pixel, so counts in
bytes... */
cell_count = cellsize / 8;
count = 64 / 8;
/*
* Write the cursor image data:
* set addr[9:8] to 0,
* set addr[7:0] to 0,
* spit it all out.
*/
sc->gfbc->ramdac_wr(sc, BT485_REG_PCRAM_WRADDR,
BT485_IREG_COMMAND_3);
regval = sc->gfbc->ramdac_rd(sc, BT485_REG_EXTENDED);
regval &= ~0x03;
sc->gfbc->ramdac_wr(sc, BT485_REG_PCRAM_WRADDR,
BT485_IREG_COMMAND_3);
sc->gfbc->ramdac_wr(sc, BT485_REG_EXTENDED, regval);
sc->gfbc->ramdac_wr(sc, BT485_REG_PCRAM_WRADDR, 0);
/* Fill-in the desired pixels in the specified pixel-rows... */
for(i = 0; i < height; i++) {
for(j = 0; j < cell_count; j++)
sc->gfbc->ramdac_wr(sc, BT485_REG_CURSOR_RAM,
0xff);
for(j = 0; j < count - cell_count; j++)
sc->gfbc->ramdac_wr(sc, BT485_REG_CURSOR_RAM,
0x00);
}
/* Clear the remaining pixel rows... */
for(; i < 64; i++)
for(j = 0; j < count; j++)
sc->gfbc->ramdac_wr(sc, BT485_REG_CURSOR_RAM,
0x00);
/*
* Write the cursor mask data:
* set addr[9:8] to 2,
* set addr[7:0] to 0,
* spit it all out.
*/
sc->gfbc->ramdac_wr(sc, BT485_REG_PCRAM_WRADDR,
BT485_IREG_COMMAND_3);
regval = sc->gfbc->ramdac_rd(sc, BT485_REG_EXTENDED);
regval &= ~0x03; regval |= 0x02;
sc->gfbc->ramdac_wr(sc, BT485_REG_PCRAM_WRADDR,
BT485_IREG_COMMAND_3);
sc->gfbc->ramdac_wr(sc, BT485_REG_EXTENDED, regval);
sc->gfbc->ramdac_wr(sc, BT485_REG_PCRAM_WRADDR, 0);
/* Fill-in the desired pixels in the specified pixel-rows... */
for(i = 0; i < height; i++) {
for(j = 0; j < cell_count; j++)
sc->gfbc->ramdac_wr(sc, BT485_REG_CURSOR_RAM,
0xff);
for(j = 0; j < count - cell_count; j++)
sc->gfbc->ramdac_wr(sc, BT485_REG_CURSOR_RAM,
0x00);
}
/* Clear the remaining pixel rows... */
for(; i < 64; i++)
for(j = 0; j < count; j++)
sc->gfbc->ramdac_wr(sc, BT485_REG_CURSOR_RAM,
0x00);
/* set addr[9:0] back to 0 */
sc->gfbc->ramdac_wr(sc, BT485_REG_PCRAM_WRADDR,
BT485_IREG_COMMAND_3);
regval = sc->gfbc->ramdac_rd(sc, BT485_REG_EXTENDED);
regval &= ~0x03;
sc->gfbc->ramdac_wr(sc, BT485_REG_PCRAM_WRADDR,
BT485_IREG_COMMAND_3);
sc->gfbc->ramdac_wr(sc, BT485_REG_EXTENDED, regval);
}
return(error);
}
static void
ibm561_init(struct gfb_softc *sc)
{
}
static int
ibm561_save_palette(video_adapter_t *adp, video_color_palette_t *palette)
{
int error;
error = 0;
return(error);
}
static int
ibm561_load_palette(video_adapter_t *adp, video_color_palette_t *palette)
{
int error;
error = 0;
return(error);
}
static int
ibm561_save_cursor_palette(video_adapter_t *adp, struct fbcmap *palette)
{
int error;
error = 0;
return(error);
}
static int
ibm561_load_cursor_palette(video_adapter_t *adp, struct fbcmap *palette)
{
int error;
error = 0;
return(error);
}
#undef MB
#undef KB
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