[PATCH 03/35] drm/i915/bios: Indicate which VBT structures are based on EDID
Ville Syrjala
ville.syrjala at linux.intel.com
Fri May 3 12:24:17 UTC 2024
From: Ville Syrjälä <ville.syrjala at linux.intel.com>
VBT reuses a bunch of EDID data structures. Flag those as such
for clarity.
I chose "bdb_edid_" as the namespace for these.
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_bios.c | 28 +++---
drivers/gpu/drm/i915/display/intel_vbt_defs.h | 95 ++++++++++---------
2 files changed, 62 insertions(+), 61 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 661842a3c2e6..9f933508be1c 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -242,13 +242,13 @@ static bool validate_lfp_data_ptrs(const void *bdb,
/* fp_timing has variable size */
if (fp_timing_size < 32 ||
- dvo_timing_size != sizeof(struct lvds_dvo_timing) ||
- panel_pnp_id_size != sizeof(struct lvds_pnp_id))
+ dvo_timing_size != sizeof(struct bdb_edid_dtd) ||
+ panel_pnp_id_size != sizeof(struct bdb_edid_pnp_id))
return false;
/* panel_name is not present in old VBTs */
if (panel_name_size != 0 &&
- panel_name_size != sizeof(struct lvds_lfp_panel_name))
+ panel_name_size != sizeof(struct bdb_edid_product_name))
return false;
lfp_data_size = ptrs->ptr[1].fp_timing.offset - ptrs->ptr[0].fp_timing.offset;
@@ -385,8 +385,8 @@ static void *generate_lfp_data_ptrs(struct drm_i915_private *i915,
block_size = get_blocksize(block);
- size = fp_timing_size + sizeof(struct lvds_dvo_timing) +
- sizeof(struct lvds_pnp_id);
+ size = fp_timing_size + sizeof(struct bdb_edid_dtd) +
+ sizeof(struct bdb_edid_pnp_id);
if (size * 16 > block_size)
return NULL;
@@ -398,10 +398,10 @@ static void *generate_lfp_data_ptrs(struct drm_i915_private *i915,
*(u16 *)(ptrs_block + 1) = sizeof(*ptrs);
ptrs = ptrs_block + 3;
- table_size = sizeof(struct lvds_pnp_id);
+ table_size = sizeof(struct bdb_edid_pnp_id);
size = make_lfp_data_ptr(&ptrs->ptr[0].panel_pnp_id, table_size, size);
- table_size = sizeof(struct lvds_dvo_timing);
+ table_size = sizeof(struct bdb_edid_dtd);
size = make_lfp_data_ptr(&ptrs->ptr[0].dvo_timing, table_size, size);
table_size = fp_timing_size;
@@ -419,15 +419,15 @@ static void *generate_lfp_data_ptrs(struct drm_i915_private *i915,
return NULL;
}
- size = fp_timing_size + sizeof(struct lvds_dvo_timing) +
- sizeof(struct lvds_pnp_id);
+ size = fp_timing_size + sizeof(struct bdb_edid_dtd) +
+ sizeof(struct bdb_edid_pnp_id);
for (i = 1; i < 16; i++) {
next_lfp_data_ptr(&ptrs->ptr[i].fp_timing, &ptrs->ptr[i-1].fp_timing, size);
next_lfp_data_ptr(&ptrs->ptr[i].dvo_timing, &ptrs->ptr[i-1].dvo_timing, size);
next_lfp_data_ptr(&ptrs->ptr[i].panel_pnp_id, &ptrs->ptr[i-1].panel_pnp_id, size);
}
- table_size = sizeof(struct lvds_lfp_panel_name);
+ table_size = sizeof(struct bdb_edid_product_name);
if (16 * (size + table_size) <= block_size) {
ptrs->panel_name.table_size = table_size;
@@ -525,7 +525,7 @@ static void init_bdb_blocks(struct drm_i915_private *i915,
static void
fill_detail_timing_data(struct drm_i915_private *i915,
struct drm_display_mode *panel_fixed_mode,
- const struct lvds_dvo_timing *dvo_timing)
+ const struct bdb_edid_dtd *dvo_timing)
{
panel_fixed_mode->hdisplay = (dvo_timing->hactive_hi << 8) |
dvo_timing->hactive_lo;
@@ -579,7 +579,7 @@ fill_detail_timing_data(struct drm_i915_private *i915,
drm_mode_set_name(panel_fixed_mode);
}
-static const struct lvds_dvo_timing *
+static const struct bdb_edid_dtd *
get_lvds_dvo_timing(const struct bdb_lvds_lfp_data *data,
const struct bdb_lvds_lfp_data_ptrs *ptrs,
int index)
@@ -601,7 +601,7 @@ get_lvds_pnp_id(const struct bdb_lvds_lfp_data *data,
int index)
{
/* These two are supposed to have the same layout in memory. */
- BUILD_BUG_ON(sizeof(struct lvds_pnp_id) != sizeof(struct drm_edid_product_id));
+ BUILD_BUG_ON(sizeof(struct bdb_edid_pnp_id) != sizeof(struct drm_edid_product_id));
return (const void *)data + ptrs->ptr[index].panel_pnp_id.offset;
}
@@ -835,7 +835,7 @@ parse_lfp_panel_dtd(struct drm_i915_private *i915,
const struct bdb_lvds_lfp_data *lvds_lfp_data,
const struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs)
{
- const struct lvds_dvo_timing *panel_dvo_timing;
+ const struct bdb_edid_dtd *panel_dvo_timing;
const struct lvds_fp_timing *fp_timing;
struct drm_display_mode *panel_fixed_mode;
int panel_type = panel->vbt.panel_type;
diff --git a/drivers/gpu/drm/i915/display/intel_vbt_defs.h b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
index eebb91f4d88b..7ad4d31f6437 100644
--- a/drivers/gpu/drm/i915/display/intel_vbt_defs.h
+++ b/drivers/gpu/drm/i915/display/intel_vbt_defs.h
@@ -39,6 +39,50 @@
#include "intel_bios.h"
+/* EDID derived structures */
+struct bdb_edid_pnp_id {
+ u16 mfg_name;
+ u16 product_code;
+ u32 serial;
+ u8 mfg_week;
+ u8 mfg_year;
+} __packed;
+
+struct bdb_edid_product_name {
+ char name[13];
+} __packed;
+
+struct bdb_edid_dtd {
+ u16 clock; /**< In 10khz */
+ u8 hactive_lo;
+ u8 hblank_lo;
+ u8 hblank_hi:4;
+ u8 hactive_hi:4;
+ u8 vactive_lo;
+ u8 vblank_lo;
+ u8 vblank_hi:4;
+ u8 vactive_hi:4;
+ u8 hsync_off_lo;
+ u8 hsync_pulse_width_lo;
+ u8 vsync_pulse_width_lo:4;
+ u8 vsync_off_lo:4;
+ u8 vsync_pulse_width_hi:2;
+ u8 vsync_off_hi:2;
+ u8 hsync_pulse_width_hi:2;
+ u8 hsync_off_hi:2;
+ u8 himage_lo;
+ u8 vimage_lo;
+ u8 vimage_hi:4;
+ u8 himage_hi:4;
+ u8 h_border;
+ u8 v_border;
+ u8 rsvd1:3;
+ u8 digital:2;
+ u8 vsync_positive:1;
+ u8 hsync_positive:1;
+ u8 non_interlaced:1;
+} __packed;
+
/**
* struct vbt_header - VBT Header structure
* @signature: VBT signature, always starts with "$VBT"
@@ -645,39 +689,8 @@ struct bdb_sdvo_lvds_options {
* Block 23 - SDVO LVDS Panel DTDs
*/
-struct lvds_dvo_timing {
- u16 clock; /**< In 10khz */
- u8 hactive_lo;
- u8 hblank_lo;
- u8 hblank_hi:4;
- u8 hactive_hi:4;
- u8 vactive_lo;
- u8 vblank_lo;
- u8 vblank_hi:4;
- u8 vactive_hi:4;
- u8 hsync_off_lo;
- u8 hsync_pulse_width_lo;
- u8 vsync_pulse_width_lo:4;
- u8 vsync_off_lo:4;
- u8 vsync_pulse_width_hi:2;
- u8 vsync_off_hi:2;
- u8 hsync_pulse_width_hi:2;
- u8 hsync_off_hi:2;
- u8 himage_lo;
- u8 vimage_lo;
- u8 vimage_hi:4;
- u8 himage_hi:4;
- u8 h_border;
- u8 v_border;
- u8 rsvd1:3;
- u8 digital:2;
- u8 vsync_positive:1;
- u8 hsync_positive:1;
- u8 non_interlaced:1;
-} __packed;
-
struct bdb_sdvo_panel_dtds {
- struct lvds_dvo_timing dtds[4];
+ struct bdb_edid_dtd dtds[4];
} __packed;
/*
@@ -828,14 +841,6 @@ struct lvds_fp_timing {
u16 terminator;
} __packed;
-struct lvds_pnp_id {
- u16 mfg_name;
- u16 product_code;
- u32 serial;
- u8 mfg_week;
- u8 mfg_year;
-} __packed;
-
/*
* For reference only. fp_timing has variable size so
* the data must be accessed using the data table pointers.
@@ -843,18 +848,14 @@ struct lvds_pnp_id {
*/
struct lvds_lfp_data_entry {
struct lvds_fp_timing fp_timing;
- struct lvds_dvo_timing dvo_timing;
- struct lvds_pnp_id pnp_id;
+ struct bdb_edid_dtd dvo_timing;
+ struct bdb_edid_pnp_id pnp_id;
} __packed;
struct bdb_lvds_lfp_data {
struct lvds_lfp_data_entry data[16];
} __packed;
-struct lvds_lfp_panel_name {
- u8 name[13];
-} __packed;
-
struct lvds_lfp_black_border {
u8 top; /* 227+ */
u8 bottom; /* 227+ */
@@ -863,7 +864,7 @@ struct lvds_lfp_black_border {
} __packed;
struct bdb_lvds_lfp_data_tail {
- struct lvds_lfp_panel_name panel_name[16]; /* (156-163?)+ */
+ struct bdb_edid_product_name panel_name[16]; /* (156-163?)+ */
u16 scaling_enable; /* 187+ */
u8 seamless_drrs_min_refresh_rate[16]; /* 188+ */
u8 pixel_overlap_count[16]; /* 208+ */
--
2.43.2
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