/*
* Starting with Haswell, DDI port buffers must be programmed with correct
* values in advance. The buffer values are different for FDI and DP modes,
* but the HDMI/DVI fields are shared among those. So we program the DDI
* in either FDI or DP modes only, as HDMI connections will work with both
* of those
*/
static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port)
{
struct drm_i915_private *dev_priv = dev->dev_private;
u32 reg;
int i;
int hdmi_level = dev_priv->vbt.ddi_port_info[port].hdmi_level_shift;
const u32 *ddi_translations_fdi;
const u32 *ddi_translations_dp;
const u32 *ddi_translations_edp;
const u32 *ddi_translations;
if (IS_BROADWELL(dev)) {
ddi_translations_fdi = bdw_ddi_translations_fdi;
ddi_translations_dp = bdw_ddi_translations_dp;
ddi_translations_edp = bdw_ddi_translations_edp;
} else if (IS_HASWELL(dev)) {
ddi_translations_fdi = hsw_ddi_translations_fdi;
ddi_translations_dp = hsw_ddi_translations_dp;
ddi_translations_edp = hsw_ddi_translations_dp;
} else {
WARN(1, "ddi translation table missing\n");
ddi_translations_edp = bdw_ddi_translations_dp;
ddi_translations_fdi = bdw_ddi_translations_fdi;
ddi_translations_dp = bdw_ddi_translations_dp;
}
switch (port) {
case PORT_A:
ddi_translations = ddi_translations_edp;
break;
case PORT_B:
case PORT_C:
ddi_translations = ddi_translations_dp;
break;
case PORT_D:
if (intel_dpd_is_edp(dev))
ddi_translations = ddi_translations_edp;
else
ddi_translations = ddi_translations_dp;
break;
case PORT_E:
ddi_translations = ddi_translations_fdi;
break;
default:
BUG();
}
for (i = 0, reg = DDI_BUF_TRANS(port);
i < ARRAY_SIZE(hsw_ddi_translations_fdi); i++) {
I915_WRITE(reg, ddi_translations[i]);
reg += 4;
}
/* Entry 9 is for HDMI: */
for (i = 0; i < 2; i++) {
I915_WRITE(reg, hsw_ddi_translations_hdmi[hdmi_level * 2 + i]);
reg += 4;
}
}
int main(int argc, char *argv[])
{
struct drm_i915_private *dp;
bool dpd_is_edp = false;
init(&argc, &argv);
devinit();
intel_setup_bios(i915);
if (i915->bios_bin)
intel_parse_bios(i915);
#if defined(VERSION) && VERSION == 36
intel_panel_enable_backlight(i915, 0);
#else
intel_panel_enable_backlight(i915);
#endif
i915_driver_load(i915, (unsigned long)i915->dev_private->info);
dp = i915->dev_private;
dpd_is_edp = intel_dpd_is_edp(i915);
if (has_edp_a(i915))
printf("DP_A,");
if (dp->int_lvds_connector)
printf("LVDS,");
if (I915_READ(HDMIC) & PORT_DETECTED)
printf("HDMIC,");
if (I915_READ(HDMID) & PORT_DETECTED)
printf("HDMID,");
if (I915_READ(PCH_DP_C) & DP_DETECTED)
printf("DPC,");
if (!dpd_is_edp && (I915_READ(PCH_DP_D) & DP_DETECTED))
printf("DPD,");
printf("\n");
}
