/*! Creates the initial mode list of the primary accelerant.
It's called from intel_init_accelerant().
*/
status_t
create_mode_list(void)
{
i2c_bus bus;
bus.cookie = (void*)INTEL_I2C_IO_A;
bus.set_signals = &set_i2c_signals;
bus.get_signals = &get_i2c_signals;
ddc2_init_timing(&bus);
if (ddc2_read_edid1(&bus, &gInfo->edid_info, NULL, NULL) == B_OK) {
edid_dump(&gInfo->edid_info);
gInfo->has_edid = true;
} else {
TRACE(("intel_extreme: getting EDID failed!\n"));
}
// TODO: support lower modes via scaling and windowing
if (gInfo->head_mode & HEAD_MODE_LVDS_PANEL
&& ((gInfo->head_mode & HEAD_MODE_A_ANALOG) == 0)) {
size_t size = (sizeof(display_mode) + B_PAGE_SIZE - 1)
& ~(B_PAGE_SIZE - 1);
display_mode *list;
area_id area = create_area("intel extreme modes", (void **)&list,
B_ANY_ADDRESS, size, B_NO_LOCK, B_READ_AREA | B_WRITE_AREA);
if (area < B_OK)
return area;
memcpy(list, &gInfo->lvds_panel_mode, sizeof(display_mode));
gInfo->mode_list_area = area;
gInfo->mode_list = list;
gInfo->shared_info->mode_list_area = gInfo->mode_list_area;
gInfo->shared_info->mode_count = 1;
return B_OK;
}
// Otherwise return the 'real' list of modes
display_mode *list;
uint32 count = 0;
gInfo->mode_list_area = create_display_modes("intel extreme modes",
gInfo->has_edid ? &gInfo->edid_info : NULL, NULL, 0, NULL, 0, NULL,
&list, &count);
if (gInfo->mode_list_area < B_OK)
return gInfo->mode_list_area;
gInfo->mode_list = list;
gInfo->shared_info->mode_list_area = gInfo->mode_list_area;
gInfo->shared_info->mode_count = count;
return B_OK;
}
bool
Savage_GetEdidInfo(edid1_info& edidInfo)
{
// Get the EDID info and return true if successful.
SharedInfo& si = *gInfo.sharedInfo;
uint32 DDCPort = 0;
switch (si.chipType) {
case S3_SAVAGE_3D:
case S3_SAVAGE_MX:
case S3_SUPERSAVAGE:
case S3_SAVAGE2000:
DDCPort = 0xAA;
break;
case S3_SAVAGE4:
case S3_PROSAVAGE:
case S3_TWISTER:
case S3_PROSAVAGE_DDR:
DDCPort = 0xB1;
break;
}
i2c_bus bus;
bus.cookie = (void*)DDCPort;
bus.set_signals = &SetI2CSignals;
bus.get_signals = &GetI2CSignals;
ddc2_init_timing(&bus);
uint8 tmp = ReadCrtcReg(DDCPort);
WriteCrtcReg(DDCPort, tmp | 0x13);
bool bResult = (ddc2_read_edid1(&bus, &edidInfo, NULL, NULL) == B_OK);
WriteCrtcReg(DDCPort, tmp);
return bResult;
}
/*! Creates the initial mode list of the primary accelerant.
It's called from intel_init_accelerant().
*/
status_t
create_mode_list(void)
{
i2c_bus bus;
bus.cookie = (void*)INTEL_I2C_IO_A;
bus.set_signals = &set_i2c_signals;
bus.get_signals = &get_i2c_signals;
ddc2_init_timing(&bus);
status_t error = ddc2_read_edid1(&bus, &gInfo->edid_info, NULL, NULL);
if (error == B_OK) {
edid_dump(&gInfo->edid_info);
gInfo->has_edid = true;
} else {
TRACE(("intel_extreme: getting EDID on port A (analog) failed : %s. "
"Trying on port C (lvds)\n", strerror(error)));
bus.cookie = (void*)INTEL_I2C_IO_C;
error = ddc2_read_edid1(&bus, &gInfo->edid_info, NULL, NULL);
if (error == B_OK) {
edid_dump(&gInfo->edid_info);
gInfo->has_edid = true;
} else {
TRACE(("intel_extreme: getting EDID on port C failed : %s\n",
strerror(error)));
// We could not read any EDID info. Fallback to creating a list with
// only the mode set up by the BIOS.
// TODO: support lower modes via scaling and windowing
if ((gInfo->head_mode & HEAD_MODE_LVDS_PANEL) != 0
&& (gInfo->head_mode & HEAD_MODE_A_ANALOG) == 0) {
size_t size = (sizeof(display_mode) + B_PAGE_SIZE - 1)
& ~(B_PAGE_SIZE - 1);
display_mode* list;
area_id area = create_area("intel extreme modes",
(void**)&list, B_ANY_ADDRESS, size, B_NO_LOCK,
B_READ_AREA | B_WRITE_AREA);
if (area < B_OK)
return area;
memcpy(list, &gInfo->lvds_panel_mode, sizeof(display_mode));
gInfo->mode_list_area = area;
gInfo->mode_list = list;
gInfo->shared_info->mode_list_area = gInfo->mode_list_area;
gInfo->shared_info->mode_count = 1;
return B_OK;
}
}
}
// Otherwise return the 'real' list of modes
display_mode* list;
uint32 count = 0;
gInfo->mode_list_area = create_display_modes("intel extreme modes",
gInfo->has_edid ? &gInfo->edid_info : NULL, NULL, 0, NULL, 0, NULL,
&list, &count);
if (gInfo->mode_list_area < B_OK)
return gInfo->mode_list_area;
gInfo->mode_list = list;
gInfo->shared_info->mode_list_area = gInfo->mode_list_area;
gInfo->shared_info->mode_count = count;
return B_OK;
}