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xenocara/xserver/hw/kdrive/trio/s3.c

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/*
* Copyright © 1999 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include <kdrive-config.h>
#endif
#include "s3.h"
#define REGISTERS_OFFSET (0x1000000)
#define PACKED_OFFSET (0x8100)
CARD8
_s3ReadIndexRegister (volatile CARD8 *base, CARD8 index)
{
CARD8 ret;
*base = index;
ret = *(base + 1);
DRAW_DEBUG ((DEBUG_CRTC, " 0x%3x 0x%02x -> 0x%02x",
((int) base) & 0xfff, index, ret));
return ret;
}
void
_s3WriteIndexRegister (volatile CARD8 *base, CARD8 index, CARD8 value)
{
DRAW_DEBUG ((DEBUG_CRTC, " 0x%3x 0x%02x <- 0x%02x",
((int) base) & 0xfff, index, value));
*base = index;
*(base + 1) = value;
}
/*
* Map the S3 card and detect its configuration. Do not touch the card
*/
static void
_s3LoadCrtc (S3Ptr s3, S3Crtc *crtc)
{
crtc->h_total_0_7 = GetCrtc (s3, 0x00);
crtc->h_display_end_0_7 = GetCrtc (s3, 0x01);
crtc->h_blank_start_0_7 = GetCrtc (s3, 0x02);
crtc->_h_blank_end = GetCrtc (s3, 0x03);
crtc->h_sync_start_0_7 = GetCrtc (s3, 0x04);
crtc->_h_sync_end = GetCrtc (s3, 0x05);
crtc->v_total_0_7 = GetCrtc (s3, 0x06);
crtc->crtc_overflow = GetCrtc (s3, 0x07);
crtc->preset_row_scan = GetCrtc (s3, 0x08);
crtc->_max_scan_line = GetCrtc (s3, 0x09);
crtc->start_address_8_15 = GetCrtc (s3, 0x0c);
crtc->start_address_0_7 = GetCrtc (s3, 0x0d);
crtc->v_retrace_start_0_7 = GetCrtc (s3, 0x10);
crtc->_v_retrace_end = GetCrtc (s3, 0x11);
crtc->v_display_end_0_7 = GetCrtc (s3, 0x12);
crtc->screen_off_0_7 = GetCrtc (s3, 0x13);
crtc->v_blank_start_0_7 = GetCrtc (s3, 0x15);
crtc->v_blank_end_0_7 = GetCrtc (s3, 0x16);
crtc->line_compare_0_7 = GetCrtc (s3, 0x18);
crtc->memory_configuration = GetCrtc (s3, 0x31);
crtc->misc_1 = GetCrtc (s3, 0x3a);
crtc->h_start_fifo_fetch_0_7 = GetCrtc (s3, 0x3b);
crtc->mode_control = GetCrtc (s3, 0x42);
crtc->hardware_cursor_mode = GetCrtc (s3, 0x45);
crtc->cursor_address_8_15 = GetCrtc (s3, 0x4C);
crtc->cursor_address_0_7 = GetCrtc (s3, 0x4D);
crtc->extended_system_control_1 = GetCrtc (s3, 0x50);
crtc->extended_system_control_2 = GetCrtc (s3, 0x51);
crtc->extended_memory_control = GetCrtc (s3, 0x53);
crtc->extended_ramdac_control = GetCrtc (s3, 0x55);
crtc->extended_horizontal_overflow = GetCrtc (s3, 0x5d);
crtc->extended_vertical_overflow = GetCrtc (s3, 0x5e);
crtc->l_parm_0_7 = GetCrtc (s3, 0x62);
crtc->extended_misc_control = GetCrtc (s3, 0x65);
crtc->extended_misc_control_2 = GetCrtc (s3, 0x67);
crtc->configuration_3 = GetCrtc (s3, 0x68);
crtc->extended_system_control_3 = GetCrtc (s3, 0x69);
crtc->extended_bios_5 = GetCrtc (s3, 0x6d);
crtc->extended_sequencer_b = GetSrtc (s3, 0x0b);
crtc->extended_sequencer_d = GetSrtc (s3, 0x0d);
crtc->dclk_value_low = GetSrtc (s3, 0x12);
crtc->dclk_value_high = GetSrtc (s3, 0x13);
crtc->control_2 = GetSrtc (s3, 0x15);
crtc->ramdac_control = GetSrtc (s3, 0x18);
/* combine values */
switch (crtc_ge_screen_width(crtc)) {
case 0:
if (crtc->enable_two_page)
crtc->ge_screen_pitch = 2048;
else
crtc->ge_screen_pitch = 1024;
break;
case 1:
crtc->ge_screen_pitch = 640;
break;
case 2:
/* ignore magic 1600x1200x4 mode */
crtc->ge_screen_pitch = 800;
break;
case 3:
crtc->ge_screen_pitch = 1280;
break;
case 4:
crtc->ge_screen_pitch = 1152;
break;
case 5:
crtc->ge_screen_pitch = 0; /* reserved */
break;
case 6:
crtc->ge_screen_pitch = 1600;
break;
case 7:
crtc->ge_screen_pitch = 0; /* reserved */
break;
}
switch (crtc->pixel_length) {
case 0:
crtc->bits_per_pixel = 8;
crtc->pixel_width = (crtc_h_display_end(crtc) + 1) * 8;
break;
case 1:
crtc->bits_per_pixel = 16;
crtc->pixel_width = (crtc_h_display_end(crtc) + 1) * 4;
break;
case 3:
crtc->bits_per_pixel = 32;
crtc->pixel_width = (crtc_h_display_end(crtc) + 1) * 8;
break;
}
crtc->double_pixel_mode = 0;
switch (crtc->color_mode) {
case 0x0:
crtc->depth = 8; break;
case 0x1:
crtc->depth = 8; crtc->double_pixel_mode = 1; break;
case 0x3:
crtc->depth = 15; break;
case 0x5:
crtc->depth = 16; break;
case 0x7:
crtc->depth = 24; break; /* unused */
case 0xd:
crtc->depth = 24; break;
}
}
static void
_s3SetBlank (S3Ptr s3, Bool blank)
{
CARD8 clock_mode;
DRAW_DEBUG ((DEBUG_S3INIT, "3c4 at 0x%x\n", &s3->crt_vga_3c4));
clock_mode = _s3ReadIndexRegister (&s3->crt_vga_3c4, 0x01);
if (blank)
clock_mode |= 0x20;
else
clock_mode &= ~0x20;
_s3WaitVRetrace (s3);
_s3WriteIndexRegister (&s3->crt_vga_3c4, 0x01, clock_mode);
DRAW_DEBUG ((DEBUG_S3INIT, "blank is set to 0x%x", clock_mode));
}
static void
_s3SetDepth (S3Ptr s3, S3Crtc *crtc)
{
CARD8 save_3c2;
_s3SetBlank (s3, TRUE);
PutCrtc(s3, 0x38, 0x48);
PutCrtc(s3, 0x39, 0xA0);
PutCrtc(s3, 0x00, crtc->h_total_0_7);
PutCrtc(s3, 0x01, crtc->h_display_end_0_7);
PutCrtc(s3, 0x02, crtc->h_blank_start_0_7);
PutCrtc(s3, 0x03, crtc->_h_blank_end);
PutCrtc(s3, 0x04, crtc->h_sync_start_0_7);
PutCrtc(s3, 0x05, crtc->_h_sync_end);
PutCrtc(s3, 0x06, crtc->v_total_0_7);
PutCrtc(s3, 0x07, crtc->crtc_overflow);
PutCrtc(s3, 0x09, crtc->_max_scan_line);
PutCrtc(s3, 0x0c, crtc->start_address_8_15);
PutCrtc(s3, 0x0d, crtc->start_address_0_7);
PutCrtc(s3, 0x10, crtc->v_retrace_start_0_7);
PutCrtc(s3, 0x11, crtc->_v_retrace_end);
PutCrtc(s3, 0x12, crtc->v_display_end_0_7);
PutCrtc(s3, 0x13, crtc->screen_off_0_7);
PutCrtc(s3, 0x15, crtc->v_blank_start_0_7);
PutCrtc(s3, 0x16, crtc->v_blank_end_0_7);
PutCrtc(s3, 0x18, crtc->line_compare_0_7);
PutCrtc(s3, 0x31, crtc->memory_configuration);
PutCrtc(s3, 0x3a, crtc->misc_1);
PutCrtc(s3, 0x3b, crtc->h_start_fifo_fetch_0_7);
PutCrtc(s3, 0x42, crtc->mode_control);
PutCrtc(s3, 0x45, crtc->hardware_cursor_mode);
PutCrtc(s3, 0x4c, crtc->cursor_address_8_15);
PutCrtc(s3, 0x4d, crtc->cursor_address_0_7);
PutCrtc(s3, 0x50, crtc->extended_system_control_1);
PutCrtc(s3, 0x51, crtc->extended_system_control_2);
PutCrtc(s3, 0x53, crtc->extended_memory_control);
PutCrtc(s3, 0x55, crtc->extended_ramdac_control);
PutCrtc(s3, 0x5d, crtc->extended_horizontal_overflow);
PutCrtc(s3, 0x5e, crtc->extended_vertical_overflow);
PutCrtc(s3, 0x62, crtc->l_parm_0_7);
PutCrtc(s3, 0x65, crtc->extended_misc_control);
PutCrtc(s3, 0x67, crtc->extended_misc_control_2);
PutCrtc(s3, 0x68, crtc->configuration_3);
PutCrtc(s3, 0x69, crtc->extended_system_control_3);
PutCrtc(s3, 0x6d, crtc->extended_bios_5);
PutCrtc(s3, 0x39, 0x00);
PutCrtc(s3, 0x38, 0x00);
PutSrtc(s3, 0x0b, crtc->extended_sequencer_b);
PutSrtc(s3, 0x0d, crtc->extended_sequencer_d);
/*
* Move new dclk/mclk values into PLL
*/
save_3c2 = s3->crt_vga_3cc;
DRAW_DEBUG ((DEBUG_S3INIT, "save_3c2 0x%x", save_3c2));
s3->crt_vga_3c2 = save_3c2 | 0x0c;
PutSrtc(s3, 0x12, crtc->dclk_value_low);
PutSrtc(s3, 0x13, crtc->dclk_value_high);
DRAW_DEBUG ((DEBUG_S3INIT, "Set PLL load enable, frobbing clk_load..."));
crtc->dfrq_en = 1;
PutSrtc(s3, 0x15, crtc->control_2);
PutSrtc(s3, 0x18, crtc->ramdac_control);
DRAW_DEBUG ((DEBUG_S3INIT, "Clk load frobbed, restoring 3c2 to 0x%x", save_3c2));
s3->crt_vga_3c2 = save_3c2;
DRAW_DEBUG ((DEBUG_S3INIT, "Enabling display"));
_s3SetBlank (s3, FALSE);
}
void
_s3RestoreCrtc (S3Ptr s3, S3Crtc *crtc)
{
_s3SetDepth (s3, crtc);
}
s3Reset (S3CardInfo *s3c)
{
S3Ptr s3 = s3c->s3;
S3Save *save = &s3c->save;
CARD8 *cursor_base;
LockS3 (s3c);
_s3UnlockExt (s3);
_s3RestoreCrtc (s3, &save->crtc);
/* set foreground */
/* Reset cursor color stack pointers */
(void) GetCrtc(s3, 0x45);
PutCrtc(s3, 0x4a, save->cursor_fg);
/* XXX for deeper screens? */
/* set background */
/* Reset cursor color stack pointers */
(void) GetCrtc(s3, 0x45);
PutCrtc(s3, 0x4b, save->cursor_bg);
_s3LockExt (s3);
/* graphics engine state */
s3->alt_mix = save->alt_mix;
s3->write_mask = save->write_mask;
s3->fg = save->fg;
s3->bg = save->bg;
/* XXX should save and restore real values? */
s3->scissors_tl = 0x00000000;
s3->scissors_br = 0x0fff0fff;
_s3WriteIndexRegister (&s3->crt_vga_3c4, 0x01, save->clock_mode);
PutCrtc(s3, 0x39, save->lock2);
PutCrtc(s3, 0x38, save->lock1);
UnlockS3 (s3c);
}
void
s3Save (S3CardInfo *s3c)
{
S3Ptr s3 = s3c->s3;
S3Save *save = &s3c->save;
S3Crtc newCrtc;
CARD8 t1, t2;
CARD8 *cursor_base;
LockS3 (s3c);
save->alt_mix = s3->alt_mix;
save->write_mask = s3->write_mask;
save->fg = s3->fg;
save->bg = s3->bg;
save->lock1 = GetCrtc(s3, 0x38);
save->lock2 = GetCrtc(s3, 0x39);
save->clock_mode = _s3ReadIndexRegister (&s3->crt_vga_3c4, 0x01);
_s3UnlockExt (s3);
save->cursor_fg = GetCrtc(s3, 0x4a);
save->cursor_bg = GetCrtc(s3, 0x4b);
_s3LoadCrtc (s3, &save->crtc);
_s3LockExt (s3);
UnlockS3 (s3c);
}
Bool
s3CardInit (KdCardInfo *card)
{
S3CardInfo *s3c;
S3Ptr s3;
int size;
CARD8 *registers;
CARD32 s3Address = card->attr.address[0];
CARD8 *temp_buffer;
DRAW_DEBUG ((DEBUG_S3INIT, "s3CardInit"));
s3c = (S3CardInfo *) xalloc (sizeof (S3CardInfo));
if (!s3c)
{
DRAW_DEBUG ((DEBUG_FAILURE, "can't alloc s3 card info"));
goto bail0;
}
memset (s3c, '\0', sizeof (S3CardInfo));
card->driver = s3c;
fprintf (stderr, "S3 at 0x%x\n", s3Address);
registers = KdMapDevice (s3Address + REGISTERS_OFFSET,
sizeof (S3) + PACKED_OFFSET);
if (!registers)
{
ErrorF ("Can't map s3 device\n");
goto bail2;
}
s3 = (S3Ptr) (registers + PACKED_OFFSET);
s3c->registers = registers;
s3c->s3 = s3;
s3->crt_vga_3c3 = 1; /* wake up part from deep sleep */
s3->crt_vga_3c2 = 0x01 | 0x02 | 0x0c;
s3->crt_vga_3c4 = 0x58;
s3->crt_vga_3c5 = 0x10 | 0x3;
/*
* Can't trust S3 register value for frame buffer amount, must compute
*/
temp_buffer = KdMapDevice (s3Address, 4096 * 1024);
s3c->memory = KdFrameBufferSize (temp_buffer, 4096 * 1024);
DRAW_DEBUG ((DEBUG_S3INIT, "Detected frame buffer %d", s3c->memory));
KdUnmapDevice (temp_buffer, 4096 * 1024);
if (!s3c->memory)
{
ErrorF ("Can't detect s3 frame buffer\n");
goto bail3;
}
s3c->frameBuffer = KdMapDevice (s3Address, s3c->memory);
if (!s3c->frameBuffer)
{
ErrorF ("Can't map s3 frame buffer\n");
goto bail3;
}
card->driver = s3c;
return TRUE;
bail3:
KdUnmapDevice ((void *) s3, sizeof (S3));
bail2:
bail1:
xfree (s3c);
bail0:
return FALSE;
}
Bool
s3ModeSupported (KdScreenInfo *screen,
const KdMonitorTiming *t)
{
if (t->horizontal != 1600 &&
t->horizontal != 1280 &&
t->horizontal != 1152 &&
t->horizontal != 1024 &&
t->horizontal != 800 &&
t->horizontal != 640)
return FALSE;
if (t->clock > S3_MAX_CLOCK * 2)
return FALSE;
return TRUE;
}
Bool
s3ModeUsable (KdScreenInfo *screen)
{
KdCardInfo *card = screen->card;
S3CardInfo *s3c = (S3CardInfo *) card->driver;
int screen_size;
int pixel_width;
int byte_width;
if (screen->fb[0].depth >= 24)
{
screen->fb[0].depth = 24;
screen->fb[0].bitsPerPixel = 32;
}
else if (screen->fb[0].depth >= 16)
{
screen->fb[0].depth = 16;
screen->fb[0].bitsPerPixel = 16;
}
else if (screen->fb[0].depth >= 15)
{
screen->fb[0].depth = 15;
screen->fb[0].bitsPerPixel = 16;
}
else
{
screen->fb[0].depth = 8;
screen->fb[0].bitsPerPixel = 8;
}
byte_width = screen->width * (screen->fb[0].bitsPerPixel >> 3);
pixel_width = screen->width;
screen->fb[0].pixelStride = pixel_width;
screen->fb[0].byteStride = byte_width;
screen_size = byte_width * screen->height;
return screen_size <= s3c->memory;
}
Bool
s3ScreenInit (KdScreenInfo *screen)
{
KdCardInfo *card = screen->card;
S3CardInfo *s3c = (S3CardInfo *) card->driver;
S3ScreenInfo *s3s;
int screen_size;
int memory;
int requested_memory;
int v_total, h_total;
int byte_width;
int pixel_width;
int m, n, r;
int i;
const KdMonitorTiming *t;
DRAW_DEBUG ((DEBUG_S3INIT, "s3ScreenInit"));
s3s = (S3ScreenInfo *) xalloc (sizeof (S3ScreenInfo));
if (!s3s)
return FALSE;
memset (s3s, '\0', sizeof (S3ScreenInfo));
if (!screen->width || !screen->height)
{
screen->width = 800;
screen->height = 600;
screen->rate = 72;
}
if (!screen->fb[0].depth)
screen->fb[0].depth = 8;
DRAW_DEBUG ((DEBUG_S3INIT, "Requested parameters %dx%dx%d",
screen->width, screen->height, screen->rate));
t = KdFindMode (screen, s3ModeSupported);
screen->rate = t->rate;
screen->width = t->horizontal;
screen->height = t->vertical;
s3GetClock (t->clock, &m, &n, &r, 127, 31, 3);
#if 0
fprintf (stderr, "computed %d,%d,%d (%d) provided %d,%d,%d (%d)\n",
m, n, r, S3_CLOCK(m,n,r),
t->dac_m, t->dac_n, t->dac_r,
S3_CLOCK(t->dac_m, t->dac_n, t->dac_r));
#endif
/*
* Can only operate in pixel-doubled mode at 8 bits per pixel
*/
if (screen->fb[0].depth > 8 && S3_CLOCK(m,n,r) > S3_MAX_CLOCK)
screen->fb[0].depth = 8;
if (!KdTuneMode (screen, s3ModeUsable, s3ModeSupported))
{
xfree (s3s);
return FALSE;
}
memory = s3c->memory - screen_size;
/*
* Stick frame buffer at start of memory
*/
screen->fb[0].frameBuffer = s3c->frameBuffer;
/*
* Stick cursor at end of memory
*/
if (memory >= 2048)
{
s3s->cursor_base = s3c->frameBuffer + (s3c->memory - 2048);
memory -= 2048;
}
else
s3s->cursor_base = 0;
/*
* Use remaining memory for off-screen storage, but only use
* one piece (either right or bottom).
*/
if (memory >= byte_width * S3_TILE_SIZE)
{
s3s->fb[0].offscreen = s3c->frameBuffer + screen_size;
s3s->fb[0].offscreen_x = 0;
s3s->fb[0].offscreen_y = screen_size / byte_width;
s3s->fb[0].offscreen_width = pixel_width;
s3s->fb[0].offscreen_height = memory / byte_width;
memory -= s3s->fb[0].offscreen_height * byte_width;
}
else if (pixel_width - screen->width >= S3_TILE_SIZE)
{
s3s->fb[0].offscreen = s3c->frameBuffer + screen->width;
s3s->fb[0].offscreen_x = screen->width;
s3s->fb[0].offscreen_y = 0;
s3s->fb[0].offscreen_width = pixel_width - screen->width;
s3s->fb[0].offscreen_height = screen->height;
}
else
s3s->fb[0].offscreen = 0;
DRAW_DEBUG ((DEBUG_S3INIT, "depth %d bits %d", screen->fb[0].depth, screen->fb[0].bitsPerPixel));
DRAW_DEBUG ((DEBUG_S3INIT, "Screen size %dx%d memory %d",
screen->width, screen->height, s3c->memory));
DRAW_DEBUG ((DEBUG_S3INIT, "frame buffer 0x%x cursor 0x%x offscreen 0x%x",
s3c->frameBuffer, s3s->cursor_base, s3s->offscreen));
DRAW_DEBUG ((DEBUG_S3INIT, "offscreen %dx%d+%d+%d",
s3s->offscreen_width, s3s->offscreen_height,
s3s->offscreen_x, s3s->offscreen_y));
switch (screen->fb[0].depth) {
case 8:
screen->fb[0].visuals = ((1 << StaticGray) |
(1 << GrayScale) |
(1 << StaticColor) |
(1 << PseudoColor) |
(1 << TrueColor) |
(1 << DirectColor));
screen->fb[0].blueMask = 0x00;
screen->fb[0].greenMask = 0x00;
screen->fb[0].redMask = 0x00;
break;
case 15:
screen->fb[0].visuals = (1 << TrueColor);
screen->fb[0].blueMask = 0x001f;
screen->fb[0].greenMask = 0x03e0;
screen->fb[0].redMask = 0x7c00;
break;
case 16:
screen->fb[0].visuals = (1 << TrueColor);
screen->fb[0].blueMask = 0x001f;
screen->fb[0].greenMask = 0x07e0;
screen->fb[0].redMask = 0xf800;
break;
case 24:
screen->fb[0].visuals = (1 << TrueColor);
screen->fb[0].blueMask = 0x0000ff;
screen->fb[0].greenMask = 0x00ff00;
screen->fb[0].redMask = 0xff0000;
break;
}
screen->driver = s3s;
return TRUE;
}
void
s3Preserve (KdCardInfo *card)
{
S3CardInfo *s3c = card->driver;
s3Save (s3c);
}
/*
* Enable the card for rendering. Manipulate the initial settings
* of the card here.
*/
Bool
s3Enable (ScreenPtr pScreen)
{
KdScreenPriv(pScreen);
KdCardInfo *card = pScreenPriv->card;
KdScreenInfo *screen = pScreenPriv->screen;
s3CardInfo (pScreenPriv);
s3ScreenInfo (pScreenPriv);
S3Crtc crtcR, *crtc;
int hactive, hblank, hfp, hbp;
int vactive, vblank, vfp, vbp;
int hsize;
int h_total;
int h_display_end;
int h_blank_start;
int h_blank_end;
int h_sync_start;
int h_sync_end;
int h_screen_off;
int h_start_fifo_fetch;
int v_total;
int v_retrace_start;
int v_retrace_end;
int v_display_end;
int v_blank_start;
int v_blank_end;
int h_adjust;
int h_sync_extend_;
int h_blank_extend_;
int i;
CARD16 cursor_address;
const KdMonitorTiming *t;
int m, n, r;
DRAW_DEBUG ((DEBUG_S3INIT, "s3Enable"));
DRAW_DEBUG ((DEBUG_S3INIT, "requested bpp %d current %d",
pScreenPriv->bitsPerPixel, s3c->save.crtc.bits_per_pixel));
t = KdFindMode (screen, s3ModeSupported);
hfp = t->hfp;
hbp = t->hbp;
hblank = t->hblank;
hactive = t->horizontal;
vfp = t->vfp;
vbp = t->vbp;
vblank = t->vblank;
vactive = t->vertical;
crtcR = s3c->save.crtc;
crtc = &crtcR;
s3GetClock (t->clock, &m, &n, &r, 127, 31, 3);
crtc->dclk_pll_m_trio = m;
crtc->dclk_pll_n_trio = n;
crtc->dclk_pll_r_trio = r;
crtc->alt_refresh_count = 0x02;
crtc->enable_alt_refresh = 1;
crtc->enable_256_or_more = 1;
DRAW_DEBUG ((DEBUG_S3INIT, "memory_bus_size %d\n", crtc->memory_bus_size));
crtc->memory_bus_size = 1;
crtc->dclk_over_2 = 0;
crtc->dclk_invert = 0;
crtc->enable_clock_double = 0;
crtc->delay_blank = 0;
crtc->extended_bios_5 = 0;
/*
* Compute character lengths for horizontal timing values
*/
switch (screen->fb[0].bitsPerPixel) {
case 8:
hactive = screen->width / 8;
hblank /= 8;
hfp /= 8;
hbp /= 8;
h_screen_off = hactive;
crtc->pixel_length = 0;
crtc->color_mode = 0;
/*
* Set up for double-pixel mode, switch color modes,
* divide the dclk and delay h blank by 2 dclks
*/
if (S3_CLOCK(crtc->dclk_pll_m_trio, crtc->dclk_pll_n_trio,
crtc->dclk_pll_r_trio) > S3_MAX_CLOCK)
{
DRAW_DEBUG ((DEBUG_S3INIT, "S3 clock %g > 80MHz, using pixel double mode",
S3_CLOCK(crtc->dclk_pll_m_trio, crtc->dclk_pll_n_trio,
crtc->dclk_pll_r_trio)));
crtc->color_mode = 1;
crtc->dclk_over_2 = 1;
crtc->enable_clock_double = 1;
crtc->delay_blank = 2;
crtc->extended_bios_5 = 2;
}
h_adjust = 1;
break;
case 16:
hactive = screen->width / 4;
hblank /= 4;
hfp /= 4;
hbp /= 4;
h_screen_off = hactive;
crtc->pixel_length = 1;
crtc->extended_bios_5 = 2;
if (crtc->depth == 15)
crtc->color_mode = 3;
else
crtc->color_mode = 5;
h_adjust = 2;
break;
case 32:
hactive = screen->width / 8;
hblank /= 8;
hfp /= 8;
hbp /= 8;
h_screen_off = hactive * 4;
crtc->pixel_length = 3;
crtc->color_mode = 0xd;
h_adjust = 1;
break;
}
/*
* X server starts frame buffer at top of memory
*/
DRAW_DEBUG ((DEBUG_S3INIT, "Old start address 0x%x\n",
crtc_start_address (crtc)));
crtc_set_start_address (crtc, 0);
/*
* Compute horizontal register values from timings
*/
h_total = hactive + hblank - 5;
h_display_end = hactive - 1;
h_blank_start = h_display_end;
h_blank_end = h_blank_start + hblank - h_adjust;
h_sync_start = hactive + hfp + h_adjust;
h_sync_end = h_sync_start + hblank - hbp - hfp;
h_start_fifo_fetch = h_total - 5;
DRAW_DEBUG ((DEBUG_S3INIT, "blank_end 0x%x sync_end 0x%x sync_start 0x%x\n",
h_blank_end, h_sync_end, h_sync_start));
if (h_blank_end - h_blank_start > 0x40)
h_blank_extend_ = 1;
else
h_blank_extend_ = 0;
if (h_sync_end - h_sync_start > 0x20)
h_sync_extend_ = 1;
else
h_sync_extend_ = 0;
DRAW_DEBUG ((DEBUG_S3INIT, "blank_end 0x%x sync_end 0x%x extend %d\n",
h_blank_end, h_sync_end, h_sync_extend_));
crtc_set_h_total(crtc, h_total);
crtc_set_h_display_end (crtc, h_display_end);
crtc_set_h_blank_start (crtc, h_blank_start);
crtc_set_h_blank_end (crtc, h_blank_end);
crtc_set_h_sync_start (crtc, h_sync_start);
crtc_set_h_sync_end (crtc, h_sync_end);
crtc_set_screen_off (crtc, h_screen_off);
crtc_set_h_start_fifo_fetch (crtc, h_start_fifo_fetch);
crtc->h_sync_extend = h_sync_extend_;
crtc->h_blank_extend = h_blank_extend_;
v_total = vactive + vblank - 2;
v_retrace_start = vactive + vfp - 1;
v_retrace_end = v_retrace_start + vblank - vbp - 1;
v_display_end = vactive - 1;
v_blank_start = vactive - 1;
v_blank_end = v_blank_start + vblank - 1;
crtc_set_v_total(crtc, v_total);
crtc_set_v_retrace_start (crtc, v_retrace_start);
crtc->v_retrace_end_0_3 = v_retrace_end;
crtc_set_v_display_end (crtc, v_display_end);
crtc_set_v_blank_start (crtc, v_blank_start);
crtc->v_blank_end_0_7 = v_blank_end;
/*
* Set cursor
*/
if (!screen->softCursor)
{
cursor_address = (s3s->cursor_base - screen->fb[0].frameBuffer) / 1024;
crtc->cursor_address_0_7 = cursor_address;
crtc->cursor_address_8_15 = cursor_address >> 8;
crtc->hardware_cursor_ms_x11 = 0;
crtc->hardware_cursor_enable = 1;
}
else
crtc->hardware_cursor_enable = 0;
/*
* Set accelerator
*/
switch (screen->width) {
case 640: crtc_set_ge_screen_width(crtc,1); break;
case 800: crtc_set_ge_screen_width(crtc,2); break;
case 1024: crtc_set_ge_screen_width(crtc,0); break;
case 1152: crtc_set_ge_screen_width(crtc,4); break;
case 1280: crtc_set_ge_screen_width(crtc,3); break;
case 1600: crtc_set_ge_screen_width(crtc,6); break;
}
/*
* Set depth values
*/
crtc->bits_per_pixel = screen->fb[0].bitsPerPixel;
crtc->depth = screen->fb[0].depth;
crtc->l_parm_0_7 = screen->width / 4; /* Undocumented. */
crtc->disable_v_retrace_int = 1; /* don't let retrace interrupt */
DRAW_DEBUG ((DEBUG_S3INIT, "new h total %d display_end %d",
crtc_h_total(crtc),
crtc_h_display_end(crtc)));
DRAW_DEBUG ((DEBUG_S3INIT, " sync_start %d sync_end %d (%d)",
crtc_h_sync_start(crtc),
crtc_h_sync_end(crtc), h_sync_end));
DRAW_DEBUG ((DEBUG_S3INIT, " blank_start %d blank_end %d",
crtc_h_blank_start(crtc),
crtc_h_blank_end(crtc)));
DRAW_DEBUG ((DEBUG_S3INIT, " screen_off %d start_fifo %d",
crtc_screen_off(crtc), crtc_h_start_fifo_fetch(crtc)));
DRAW_DEBUG ((DEBUG_S3INIT, " active %d blank %d fp %d bp %d",
hactive, hblank, hfp, hbp));
DRAW_DEBUG ((DEBUG_S3INIT, "new v total %d display_end %d",
crtc_v_total(crtc),
crtc_v_display_end(crtc)));
DRAW_DEBUG ((DEBUG_S3INIT, " retrace_start %d retrace_end %d (%d)",
crtc_v_retrace_start(crtc),
crtc->v_retrace_end,
v_retrace_end));
DRAW_DEBUG ((DEBUG_S3INIT, " blank_start %d blank_end %d",
crtc_v_blank_start(crtc),
crtc->v_blank_end_0_7));
DRAW_DEBUG ((DEBUG_S3INIT, " active %d blank %d fp %d bp %d",
vactive, vblank, vfp, vbp));
/*
* Set DPMS to normal
*/
crtc->hsync_control = 0;
crtc->vsync_control = 0;
LockS3 (s3c);
_s3SetDepth (s3c->s3, crtc);
UnlockS3 (s3c);
return TRUE;
}
void
s3Disable (ScreenPtr pScreen)
{
}
void
s3Restore (KdCardInfo *card)
{
S3CardInfo *s3c = card->driver;
s3Reset (s3c);
}
void
_s3SetSync (S3CardInfo *s3c, int hsync, int vsync)
{
/* this abuses the macros defined to access the crtc structure */
union extended_sequencer_d_u _extended_sequencer_d_u;
S3Ptr s3 = s3c->s3;
extended_sequencer_d = s3c->save.crtc.extended_sequencer_d;
hsync_control = hsync;
vsync_control = vsync;
PutSrtc (s3, 0x0d, extended_sequencer_d);
}
Bool
s3DPMS (ScreenPtr pScreen, int mode)
{
KdScreenPriv(pScreen);
s3CardInfo(pScreenPriv);
switch (mode) {
case KD_DPMS_NORMAL:
_s3SetSync (s3c, 0, 0);
_s3SetBlank (s3c->s3, FALSE);
break;
case KD_DPMS_STANDBY:
_s3SetBlank (s3c->s3, TRUE);
_s3SetSync (s3c, 1, 0);
break;
case KD_DPMS_SUSPEND:
_s3SetBlank (s3c->s3, TRUE);
_s3SetSync (s3c, 0, 1);
break;
case KD_DPMS_POWERDOWN:
_s3SetBlank (s3c->s3, TRUE);
_s3SetSync (s3c, 1, 1);
break;
}
return TRUE;
}
void
s3ScreenFini (KdScreenInfo *screen)
{
S3ScreenInfo *s3s = (S3ScreenInfo *) screen->driver;
xfree (s3s);
screen->driver = 0;
}
void
s3CardFini (KdCardInfo *card)
{
S3CardInfo *s3c = (S3CardInfo *) card->driver;
KdUnmapDevice (s3c->frameBuffer, s3c->memory);
KdUnmapDevice (s3c->registers, sizeof (S3) + PACKED_OFFSET);
/* DeleteCriticalSection (&s3c->lock); */
xfree (s3c);
card->driver = 0;
}
KdCardFuncs s3Funcs = {
s3CardInit,
s3ScreenInit,
0,
s3Preserve,
s3Enable,
s3DPMS,
s3Disable,
s3Restore,
s3ScreenFini,
s3CardFini,
s3CursorInit,
s3CursorEnable,
s3CursorDisable,
s3CursorFini,
s3RecolorCursor,
s3DrawInit,
s3DrawEnable,
s3DrawSync,
s3DrawDisable,
s3DrawFini,
s3GetColors,
s3PutColors,
};
void
S3InitCard (KdCardAttr *attr)
{
KdCardInfoAdd (&s3Funcs, attr, 0);
}
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