Copyright 1999, Be Incorporated. All Rights Reserved.
This file may be used under the terms of the Be Sample Code License.
Other authors for nm driver:
Rudolf Cornelissen 4/2003-1/2006
*/
#define MODULE_BIT 0x00400000
#include "acc_std.h"
#define T_POSITIVE_SYNC (B_POSITIVE_HSYNC | B_POSITIVE_VSYNC)
#define MODE_FLAGS 0
#define MODE_COUNT (sizeof (mode_list) / sizeof (display_mode))
#include "valid_mode_list"
static const display_mode mode_list[] = {
{ { 25175, 640, 656, 752, 800, 480, 490, 492, 525, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS},
{ { 27500, 640, 672, 768, 864, 480, 488, 494, 530, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS},
{ { 30500, 640, 672, 768, 864, 480, 517, 523, 588, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS},
{ { 31500, 640, 664, 704, 832, 480, 489, 492, 520, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS},
{ { 31500, 640, 656, 720, 840, 480, 481, 484, 500, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS},
{ { 36000, 640, 696, 752, 832, 480, 481, 484, 509, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS},
{ { 36000, 800, 824, 896, 1024, 600, 601, 603, 625, 0}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS},
{ { 38100, 800, 832, 960, 1088, 600, 602, 606, 620, 0}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS},
{ { 40000, 800, 840, 968, 1056, 600, 601, 605, 628, T_POSITIVE_SYNC}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS},
{ { 49500, 800, 816, 896, 1056, 600, 601, 604, 625, T_POSITIVE_SYNC}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS},
{ { 50000, 800, 856, 976, 1040, 600, 637, 643, 666, T_POSITIVE_SYNC}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS},
{ { 56250, 800, 832, 896, 1048, 600, 601, 604, 631, T_POSITIVE_SYNC}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS},
{ { 65000, 1024, 1048, 1184, 1344, 768, 771, 777, 806, 0}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS},
{ { 75000, 1024, 1048, 1184, 1328, 768, 771, 777, 806, 0}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS},
{ { 78750, 1024, 1040, 1136, 1312, 768, 769, 772, 800, T_POSITIVE_SYNC}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS},
{ { 94500, 1024, 1072, 1168, 1376, 768, 769, 772, 808, T_POSITIVE_SYNC}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS},
{ { 94200, 1152, 1184, 1280, 1472, 864, 865, 868, 914, T_POSITIVE_SYNC}, B_CMAP8, 1152, 864, 0, 0, MODE_FLAGS},
{ { 97800, 1152, 1216, 1344, 1552, 864, 865, 868, 900, T_POSITIVE_SYNC}, B_CMAP8, 1152, 864, 0, 0, MODE_FLAGS},
{ { 108000, 1152, 1216, 1344, 1600, 864, 865, 868, 900, T_POSITIVE_SYNC}, B_CMAP8, 1152, 864, 0, 0, MODE_FLAGS},
{ { 108000, 1280, 1328, 1440, 1688, 1024, 1025, 1028, 1066, T_POSITIVE_SYNC}, B_CMAP8, 1280, 1024, 0, 0, MODE_FLAGS},
};
Check mode is between low and high limits
returns:
B_OK - found one
B_BAD_VALUE - mode can be made, but outside limits
B_ERROR - not possible
*/
* BeOS (tested R5.0.3PE) is failing BWindowScreen.SetFrameBuffer() if PROPOSEMODE
* returns B_BAD_VALUE. It's called by the OS with target, low and high set to
* have the same settings for BWindowScreen!
* Which means we should not return B_BAD_VALUE on anything except for deviations on:
* display_mode.virtual_width;
* display_mode.virtual_height;
* display_mode.timing.h_display;
* display_mode.timing.v_display;
*/
* The target mode should be modified to correspond to the mode as it can be made. */
status_t PROPOSE_DISPLAY_MODE(display_mode *target, const display_mode *low, const display_mode *high)
{
status_t status = B_OK;
float pix_clock_found;
uint8 m,n,p;
status_t result;
uint32 row_bytes, pointer_reservation;
bool acc_mode;
double target_refresh = ((double)target->timing.pixel_clock * 1000.0) /
(
(double)target->timing.h_total *
(double)target->timing.v_total
);
bool
want_same_width = target->timing.h_display == target->virtual_width,
want_same_height = target->timing.v_display == target->virtual_height;
LOG(1, ("PROPOSEMODE: (ENTER) requested virtual_width %d, virtual_height %d\n",
target->virtual_width, target->virtual_height));
if (VALID_REQUIRED is set)
{
if (find modes with same size)
{
pick one with nearest pixel clock
}
else
{
pick next largest with nearest pixel clock and modify visible portion as far as possible
}
}
*/
#ifdef VALID_MODE_REQUIRED
{
int i;
int closest_mode_ptr;
uint32 closest_mode_clock;
LOG(1, ("PROPOSEMODE: valid mode required!\n"));
closest_mode_ptr = 0xbad;
closest_mode_clock = 0;
for (i=0;i<VALID_MODES;i++)
{
if(
target->timing.h_display==valid_mode_list[i].h_display &&
target->timing.v_display==valid_mode_list[i].v_display
)
{
if (
abs(valid_mode_list[i].pixel_clock-target->timing.pixel_clock)<
abs(closest_mode_clock-target->timing.pixel_clock)
)
{
closest_mode_clock=valid_mode_list[i].pixel_clock;
closest_mode_ptr=i;
}
}
}
if (closest_mode_ptr==0xbad)
{
LOG(4, ("PROPOSEMODE: no valid mode found, aborted.\n"));
return B_ERROR;
}
else
{
target->timing=valid_mode_list[closest_mode_ptr];
target_refresh = ((double)target->timing.pixel_clock * 1000.0) /
((double)target->timing.h_total * (double)target->timing.v_total);
}
}
#endif
if ((si->ps.card_type == NM2070) && (target->space == B_RGB24_LITTLE))
{
LOG(4, ("PROPOSEMODE: 24bit color not supported on NM2070, aborted.\n"));
return B_ERROR;
}
result = nm_crtc_validate_timing
(
&target->timing.h_display, &target->timing.h_sync_start, &target->timing.h_sync_end, &target->timing.h_total,
&target->timing.v_display, &target->timing.v_sync_start, &target->timing.v_sync_end, &target->timing.v_total
);
if (result == B_ERROR)
{
LOG(4, ("PROPOSEMODE: could not validate timing, aborted.\n"));
return result;
}
if ((target->timing.h_display > target->virtual_width) || want_same_width)
target->virtual_width = target->timing.h_display;
if ((target->timing.v_display > target->virtual_height) || want_same_height)
target->virtual_height = target->timing.v_display;
result = nm_general_validate_pic_size (target, &row_bytes, &acc_mode);
if (result == B_ERROR)
{
LOG(4, ("PROPOSEMODE: could not validate virtual picture size, aborted.\n"));
return result;
}
if ((target->virtual_width < low->virtual_width) ||
(target->virtual_width > high->virtual_width))
{
status = B_BAD_VALUE;
LOG(4, ("PROPOSEMODE: WARNING: virtual_width deviates too much\n"));
}
if ((target->timing.h_display < low->timing.h_display) ||
(target->timing.h_display > high->timing.h_display) ||
(target->timing.h_sync_start < low->timing.h_sync_start) ||
(target->timing.h_sync_start > high->timing.h_sync_start) ||
(target->timing.h_sync_end < low->timing.h_sync_end) ||
(target->timing.h_sync_end > high->timing.h_sync_end) ||
(target->timing.h_total < low->timing.h_total) ||
(target->timing.h_total > high->timing.h_total))
{
if ((target->timing.h_display < low->timing.h_display) ||
(target->timing.h_display > high->timing.h_display))
{
status = B_BAD_VALUE;
}
LOG(4, ("PROPOSEMODE: WARNING: horizontal timing deviates too much\n"));
}
if (
(target->timing.v_display < low->timing.v_display) ||
(target->timing.v_display > high->timing.v_display) ||
(target->timing.v_sync_start < low->timing.v_sync_start) ||
(target->timing.v_sync_start > high->timing.v_sync_start) ||
(target->timing.v_sync_end < low->timing.v_sync_end) ||
(target->timing.v_sync_end > high->timing.v_sync_end) ||
(target->timing.v_total < low->timing.v_total) ||
(target->timing.v_total > high->timing.v_total)
)
{
if ((target->timing.v_display < low->timing.v_display) ||
(target->timing.v_display > high->timing.v_display))
{
status = B_BAD_VALUE;
}
LOG(4, ("PROPOSEMODE: WARNING: vertical timing deviates too much\n"));
}
target->timing.pixel_clock = target_refresh * ((double)target->timing.h_total) * ((double)target->timing.v_total) / 1000.0;
* this also makes sure we don't generate more pixel bandwidth than the device can handle */
result = nm_dac_pix_pll_find(*target,&pix_clock_found,&m,&n,&p);
target->timing.pixel_clock = (pix_clock_found * 1000);
if ((target->timing.pixel_clock < low->timing.pixel_clock) ||
(target->timing.pixel_clock > high->timing.pixel_clock)
)
{
if ((target->timing.pixel_clock < (low->timing.pixel_clock - 1000)) ||
(target->timing.pixel_clock > (high->timing.pixel_clock + 1000)))
{
status = B_BAD_VALUE;
}
LOG(4, ("PROPOSEMODE: WARNING: pixelclock deviates too much\n"));
}
pointer_reservation = 0;
if (si->settings.hardcursor) pointer_reservation = si->ps.curmem_size;
if ((row_bytes * target->virtual_height) >
((si->ps.memory_size * 1024) - pointer_reservation))
{
target->virtual_height =
((si->ps.memory_size * 1024) - pointer_reservation) / row_bytes;
}
if (target->virtual_height < target->timing.v_display)
{
LOG(4,("PROPOSEMODE: not enough memory for current mode, aborted.\n"));
return B_ERROR;
}
LOG(4,("PROPOSEMODE: validated virtual_width %d, virtual_height %d pixels\n",
target->virtual_width, target->virtual_height));
if ((target->virtual_height < low->virtual_height) ||
(target->virtual_height > high->virtual_height))
{
status = B_BAD_VALUE;
LOG(4, ("PROPOSEMODE: WARNING: virtual_height deviates too much\n"));
}
LOG(1, ("PROPOSEMODE: initial modeflags: $%08x\n", target->flags));
* also advice system that app_server and acc engine may touch the framebuffer
* simultaneously (fixed). */
target->flags &=
~(DUALHEAD_CAPABLE | TV_CAPABLE | B_SUPPORTS_OVERLAYS | B_HARDWARE_CURSOR | B_IO_FB_NA);
* mode (fixed), and all modes support DPMS (fixed);
* We support scrolling and panning in every mode, so we 'send a signal' to
* BWindowScreen.CanControlFrameBuffer() by setting B_SCROLL. */
* BDirectWindow windowed modes. */
target->flags |= (B_PARALLEL_ACCESS | B_8_BIT_DAC | B_DPMS | B_SCROLL);
if (!(target->flags & DUALHEAD_CAPABLE))
{
target->flags &= ~DUALHEAD_BITS;
}
if (!(target->flags & TV_CAPABLE))
{
target->flags &= ~TV_BITS;
}
target->flags |= TV_PRIMARY;
if (si->settings.hardcursor)
target->flags |= B_HARDWARE_CURSOR;
if (si->ps.card_type > NM2070)
target->flags |= B_SUPPORTS_OVERLAYS;
LOG(1, ("PROPOSEMODE: validated modeflags: $%08x\n", target->flags));
* progressive scan (fixed), and sync_on_green not used */
target->timing.flags &= ~(B_BLANK_PEDESTAL | B_TIMING_INTERLACED | B_SYNC_ON_GREEN);
if (status == B_OK) LOG(4, ("PROPOSEMODE: completed successfully.\n"));
else LOG(4, ("PROPOSEMODE: mode can be made, but outside given limits.\n"));
return status;
}
This is precalculated in create_mode_list (called from InitAccelerant stuff)
*/
uint32 ACCELERANT_MODE_COUNT(void)
{
LOG(1, ("ACCELERANT_MODE_COUNT: the modelist contains %d modes\n",si->mode_count));
return si->mode_count;
}
status_t GET_MODE_LIST(display_mode *dm)
{
LOG(1, ("GET_MODE_LIST: exporting the modelist created before.\n"));
memcpy(dm, my_mode_list, si->mode_count * sizeof(display_mode));
return B_OK;
}
status_t create_mode_list(void) {
size_t max_size;
uint32
i, j,
pix_clk_range;
const display_mode
*src;
display_mode
*dst,
low,
high;
color_space spaces[4] = {B_RGB24_LITTLE,B_RGB16_LITTLE,B_RGB15_LITTLE,B_CMAP8};
max_size = (((MODE_COUNT * 4) * sizeof(display_mode)) + (B_PAGE_SIZE-1)) & ~(B_PAGE_SIZE-1);
si->mode_area = my_mode_list_area =
create_area("nm accelerant mode info", (void **)&my_mode_list, B_ANY_ADDRESS, max_size,
B_NO_LOCK, B_READ_AREA | B_WRITE_AREA | B_CLONEABLE_AREA);
if (my_mode_list_area < B_OK) return my_mode_list_area;
src = mode_list;
dst = my_mode_list;
si->mode_count = 0;
for (i = 0; i < MODE_COUNT; i++) {
low = high = *src;
pix_clk_range = low.timing.pixel_clock >> 5;
low.timing.pixel_clock -= pix_clk_range;
high.timing.pixel_clock += pix_clk_range;
* Not true. They might need a wider pitch, but this is _not_ reflected in
* virtual_width, but in fbc.bytes_per_row. */
for (j = 0; j < (sizeof(spaces) / sizeof(color_space)); j++)
{
*dst = *src;
dst->space = low.space = high.space = spaces[j];
* won't be taken into account!! */
if (PROPOSE_DISPLAY_MODE(dst, &low, &high) == B_OK) {
dst++;
si->mode_count++;
}
}
src++;
}
return B_OK;
}
