[Intel-gfx] [PATCH 1/2 V2] drm/i915: Fetch mode line from VBT, then reserve them
Ma Ling
ling.ma at intel.com
Wed May 13 05:19:55 CEST 2009
Intends to fetch mode lines in VBT according to sdvo panel type.
Signed-off-by: Ma Ling <ling.ma at intel.com>
---
In this version fetch DTD from VBT based on panel type from sdvo panel options block(No. #22)
drivers/gpu/drm/i915/i915_drv.h | 3 +-
drivers/gpu/drm/i915/intel_bios.c | 102 ++++++++++++++++++++++++++-----------
drivers/gpu/drm/i915/intel_bios.h | 17 ++++++
drivers/gpu/drm/i915/intel_lvds.c | 4 +-
4 files changed, 93 insertions(+), 33 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 2506592..f2d2463 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -180,7 +180,8 @@ typedef struct drm_i915_private {
int backlight_duty_cycle; /* restore backlight to this value */
bool panel_wants_dither;
struct drm_display_mode *panel_fixed_mode;
- struct drm_display_mode *vbt_mode; /* if any */
+ struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
+ struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
/* Feature bits from the VBIOS */
unsigned int int_tv_support:1;
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index fc28e2b..9d78cff 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -57,9 +57,43 @@ find_section(struct bdb_header *bdb, int section_id)
return NULL;
}
-/* Try to find panel data */
static void
-parse_panel_data(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
+fill_detail_timing_data(struct drm_display_mode *panel_fixed_mode,
+ struct lvds_dvo_timing *dvo_timing)
+{
+ panel_fixed_mode->hdisplay = (dvo_timing->hactive_hi << 8) |
+ dvo_timing->hactive_lo;
+ panel_fixed_mode->hsync_start = panel_fixed_mode->hdisplay +
+ ((dvo_timing->hsync_off_hi << 8) | dvo_timing->hsync_off_lo);
+ panel_fixed_mode->hsync_end = panel_fixed_mode->hsync_start +
+ dvo_timing->hsync_pulse_width;
+ panel_fixed_mode->htotal = panel_fixed_mode->hdisplay +
+ ((dvo_timing->hblank_hi << 8) | dvo_timing->hblank_lo);
+
+ panel_fixed_mode->vdisplay = (dvo_timing->vactive_hi << 8) |
+ dvo_timing->vactive_lo;
+ panel_fixed_mode->vsync_start = panel_fixed_mode->vdisplay +
+ dvo_timing->vsync_off;
+ panel_fixed_mode->vsync_end = panel_fixed_mode->vsync_start +
+ dvo_timing->vsync_pulse_width;
+ panel_fixed_mode->vtotal = panel_fixed_mode->vdisplay +
+ ((dvo_timing->vblank_hi << 8) | dvo_timing->vblank_lo);
+ panel_fixed_mode->clock = dvo_timing->clock * 10;
+ panel_fixed_mode->type = DRM_MODE_TYPE_PREFERRED;
+
+ /* Some VBTs have bogus h/vtotal values */
+ if (panel_fixed_mode->hsync_end > panel_fixed_mode->htotal)
+ panel_fixed_mode->htotal = panel_fixed_mode->hsync_end + 1;
+ if (panel_fixed_mode->vsync_end > panel_fixed_mode->vtotal)
+ panel_fixed_mode->vtotal = panel_fixed_mode->vsync_end + 1;
+
+ drm_mode_set_name(panel_fixed_mode);
+}
+
+/* Try to find integrated panel data */
+static void
+parse_lfp_panel_data(struct drm_i915_private *dev_priv,
+ struct bdb_header *bdb)
{
struct bdb_lvds_options *lvds_options;
struct bdb_lvds_lfp_data *lvds_lfp_data;
@@ -91,38 +125,45 @@ parse_panel_data(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
panel_fixed_mode = drm_calloc(1, sizeof(*panel_fixed_mode),
DRM_MEM_DRIVER);
- panel_fixed_mode->hdisplay = (dvo_timing->hactive_hi << 8) |
- dvo_timing->hactive_lo;
- panel_fixed_mode->hsync_start = panel_fixed_mode->hdisplay +
- ((dvo_timing->hsync_off_hi << 8) | dvo_timing->hsync_off_lo);
- panel_fixed_mode->hsync_end = panel_fixed_mode->hsync_start +
- dvo_timing->hsync_pulse_width;
- panel_fixed_mode->htotal = panel_fixed_mode->hdisplay +
- ((dvo_timing->hblank_hi << 8) | dvo_timing->hblank_lo);
+ fill_detail_timing_data(panel_fixed_mode, dvo_timing);
- panel_fixed_mode->vdisplay = (dvo_timing->vactive_hi << 8) |
- dvo_timing->vactive_lo;
- panel_fixed_mode->vsync_start = panel_fixed_mode->vdisplay +
- dvo_timing->vsync_off;
- panel_fixed_mode->vsync_end = panel_fixed_mode->vsync_start +
- dvo_timing->vsync_pulse_width;
- panel_fixed_mode->vtotal = panel_fixed_mode->vdisplay +
- ((dvo_timing->vblank_hi << 8) | dvo_timing->vblank_lo);
- panel_fixed_mode->clock = dvo_timing->clock * 10;
- panel_fixed_mode->type = DRM_MODE_TYPE_PREFERRED;
+ dev_priv->lfp_lvds_vbt_mode = panel_fixed_mode;
- /* Some VBTs have bogus h/vtotal values */
- if (panel_fixed_mode->hsync_end > panel_fixed_mode->htotal)
- panel_fixed_mode->htotal = panel_fixed_mode->hsync_end + 1;
- if (panel_fixed_mode->vsync_end > panel_fixed_mode->vtotal)
- panel_fixed_mode->vtotal = panel_fixed_mode->vsync_end + 1;
+ DRM_DEBUG("Found panel mode in BIOS VBT tables:\n");
+ drm_mode_debug_printmodeline(panel_fixed_mode);
- drm_mode_set_name(panel_fixed_mode);
+ return;
+}
+
+/* Try to find sdvo panel data */
+static void
+parse_sdvo_panel_data(struct drm_i915_private *dev_priv,
+ struct bdb_header *bdb)
+{
+ struct bdb_sdvo_lvds_options *sdvo_lvds_options;
+ struct lvds_dvo_timing *dvo_timing;
+ struct drm_display_mode *panel_fixed_mode;
- dev_priv->vbt_mode = panel_fixed_mode;
+ dev_priv->sdvo_lvds_vbt_mode = NULL;
- DRM_DEBUG("Found panel mode in BIOS VBT tables:\n");
- drm_mode_debug_printmodeline(panel_fixed_mode);
+ sdvo_lvds_options = find_section(bdb, BDB_SDVO_LVDS_OPTIONS);
+ if (!sdvo_lvds_options)
+ return;
+
+ dvo_timing = find_section(bdb, BDB_SDVO_PANEL_DTDS);
+ if (!dvo_timing)
+ return;
+
+ panel_fixed_mode = drm_calloc(1, sizeof(*panel_fixed_mode),
+ DRM_MEM_DRIVER);
+
+ if (!panel_fixed_mode)
+ return;
+
+ fill_detail_timing_data(panel_fixed_mode,
+ dvo_timing + sdvo_lvds_options->panel_type);
+
+ dev_priv->sdvo_lvds_vbt_mode = panel_fixed_mode;
return;
}
@@ -199,7 +240,8 @@ intel_init_bios(struct drm_device *dev)
/* Grab useful general definitions */
parse_general_features(dev_priv, bdb);
- parse_panel_data(dev_priv, bdb);
+ parse_lfp_panel_data(dev_priv, bdb);
+ parse_sdvo_panel_data(dev_priv, bdb);
pci_unmap_rom(pdev, bios);
diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h
index de621aa..8ca2cde 100644
--- a/drivers/gpu/drm/i915/intel_bios.h
+++ b/drivers/gpu/drm/i915/intel_bios.h
@@ -279,6 +279,23 @@ struct vch_bdb_22 {
struct vch_panel_data panels[16];
} __attribute__((packed));
+struct bdb_sdvo_lvds_options {
+ u8 panel_backlight;
+ u8 h40_set_panel_type;
+ u8 panel_type;
+ u8 ssc_clk_freq;
+ u16 als_low_trip;
+ u16 als_high_trip;
+ u8 sclalarcoeff_tab_row_num;
+ u8 sclalarcoeff_tab_row_size;
+ u8 coefficient[8];
+ u8 panel_misc_bits_1;
+ u8 panel_misc_bits_2;
+ u8 panel_misc_bits_3;
+ u8 panel_misc_bits_4;
+} __attribute__((packed));
+
+
bool intel_init_bios(struct drm_device *dev);
/*
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 6619f26..7200c48 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -473,10 +473,10 @@ void intel_lvds_init(struct drm_device *dev)
}
/* Failed to get EDID, what about VBT? */
- if (dev_priv->vbt_mode) {
+ if (dev_priv->lfp_lvds_vbt_mode) {
mutex_lock(&dev->mode_config.mutex);
dev_priv->panel_fixed_mode =
- drm_mode_duplicate(dev, dev_priv->vbt_mode);
+ drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode);
mutex_unlock(&dev->mode_config.mutex);
if (dev_priv->panel_fixed_mode) {
dev_priv->panel_fixed_mode->type |=
--
1.5.4.4
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