--- /dev/null
+/*
+ * Copyright (c) 2006 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ * Eric Anholt <eric@anholt.net>
+ *
+ */
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include "psb_drm.h"
+#include "psb_drv.h"
+#include "psb_intel_drv.h"
+#include "psb_intel_reg.h"
+#include "psb_intel_bios.h"
+
+
+static void *find_section(struct bdb_header *bdb, int section_id)
+{
+ u8 *base = (u8 *)bdb;
+ int index = 0;
+ u16 total, current_size;
+ u8 current_id;
+
+ /* skip to first section */
+ index += bdb->header_size;
+ total = bdb->bdb_size;
+
+ /* walk the sections looking for section_id */
+ while (index < total) {
+ current_id = *(base + index);
+ index++;
+ current_size = *((u16 *)(base + index));
+ index += 2;
+ if (current_id == section_id)
+ return base + index;
+ index += current_size;
+ }
+
+ return NULL;
+}
+
+static void 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);
+}
+
+static void parse_backlight_data(struct drm_psb_private *dev_priv,
+ struct bdb_header *bdb)
+{
+ struct bdb_lvds_backlight *vbt_lvds_bl = NULL;
+ struct bdb_lvds_backlight *lvds_bl;
+ u8 p_type = 0;
+ void *bl_start = NULL;
+ struct bdb_lvds_options *lvds_opts
+ = find_section(bdb, BDB_LVDS_OPTIONS);
+
+ dev_priv->lvds_bl = NULL;
+
+ if (lvds_opts)
+ p_type = lvds_opts->panel_type;
+ else
+ return;
+
+ bl_start = find_section(bdb, BDB_LVDS_BACKLIGHT);
+ vbt_lvds_bl = (struct bdb_lvds_backlight *)(bl_start + 1) + p_type;
+
+ lvds_bl = kzalloc(sizeof(*vbt_lvds_bl), GFP_KERNEL);
+ if (!lvds_bl) {
+ dev_err(dev_priv->dev->dev, "out of memory for backlight data\n");
+ return;
+ }
+ memcpy(lvds_bl, vbt_lvds_bl, sizeof(*vbt_lvds_bl));
+ dev_priv->lvds_bl = lvds_bl;
+}
+
+/* Try to find integrated panel data */
+static void parse_lfp_panel_data(struct drm_psb_private *dev_priv,
+ struct bdb_header *bdb)
+{
+ struct bdb_lvds_options *lvds_options;
+ struct bdb_lvds_lfp_data *lvds_lfp_data;
+ struct bdb_lvds_lfp_data_entry *entry;
+ struct lvds_dvo_timing *dvo_timing;
+ struct drm_display_mode *panel_fixed_mode;
+
+ /* Defaults if we can't find VBT info */
+ dev_priv->lvds_dither = 0;
+ dev_priv->lvds_vbt = 0;
+
+ lvds_options = find_section(bdb, BDB_LVDS_OPTIONS);
+ if (!lvds_options)
+ return;
+
+ dev_priv->lvds_dither = lvds_options->pixel_dither;
+ if (lvds_options->panel_type == 0xff)
+ return;
+
+ lvds_lfp_data = find_section(bdb, BDB_LVDS_LFP_DATA);
+ if (!lvds_lfp_data)
+ return;
+
+ dev_priv->lvds_vbt = 1;
+
+ entry = &lvds_lfp_data->data[lvds_options->panel_type];
+ dvo_timing = &entry->dvo_timing;
+
+ panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode),
+ GFP_KERNEL);
+
+ fill_detail_timing_data(panel_fixed_mode, dvo_timing);
+
+ if (panel_fixed_mode->htotal > 0 && panel_fixed_mode->vtotal > 0) {
+ dev_priv->lfp_lvds_vbt_mode = panel_fixed_mode;
+ drm_mode_debug_printmodeline(panel_fixed_mode);
+ } else {
+ dev_dbg(dev_priv->dev->dev, "ignoring invalid LVDS VBT\n");
+ dev_priv->lvds_vbt = 0;
+ kfree(panel_fixed_mode);
+ }
+ return;
+}
+
+/* Try to find sdvo panel data */
+static void parse_sdvo_panel_data(struct drm_psb_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->sdvo_lvds_vbt_mode = NULL;
+
+ 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 = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL);
+
+ 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;
+}
+
+static void parse_general_features(struct drm_psb_private *dev_priv,
+ struct bdb_header *bdb)
+{
+ struct bdb_general_features *general;
+
+ /* Set sensible defaults in case we can't find the general block */
+ dev_priv->int_tv_support = 1;
+ dev_priv->int_crt_support = 1;
+
+ general = find_section(bdb, BDB_GENERAL_FEATURES);
+ if (general) {
+ dev_priv->int_tv_support = general->int_tv_support;
+ dev_priv->int_crt_support = general->int_crt_support;
+ dev_priv->lvds_use_ssc = general->enable_ssc;
+
+ if (dev_priv->lvds_use_ssc) {
+ dev_priv->lvds_ssc_freq
+ = general->ssc_freq ? 100 : 96;
+ }
+ }
+}
+
+/**
+ * psb_intel_init_bios - initialize VBIOS settings & find VBT
+ * @dev: DRM device
+ *
+ * Loads the Video BIOS and checks that the VBT exists. Sets scratch registers
+ * to appropriate values.
+ *
+ * VBT existence is a sanity check that is relied on by other i830_bios.c code.
+ * Note that it would be better to use a BIOS call to get the VBT, as BIOSes may
+ * feed an updated VBT back through that, compared to what we'll fetch using
+ * this method of groping around in the BIOS data.
+ *
+ * Returns 0 on success, nonzero on failure.
+ */
+bool psb_intel_init_bios(struct drm_device *dev)
+{
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ struct pci_dev *pdev = dev->pdev;
+ struct vbt_header *vbt = NULL;
+ struct bdb_header *bdb;
+ u8 __iomem *bios;
+ size_t size;
+ int i;
+
+ bios = pci_map_rom(pdev, &size);
+ if (!bios)
+ return -1;
+
+ /* Scour memory looking for the VBT signature */
+ for (i = 0; i + 4 < size; i++) {
+ if (!memcmp(bios + i, "$VBT", 4)) {
+ vbt = (struct vbt_header *)(bios + i);
+ break;
+ }
+ }
+
+ if (!vbt) {
+ dev_err(dev->dev, "VBT signature missing\n");
+ pci_unmap_rom(pdev, bios);
+ return -1;
+ }
+
+ bdb = (struct bdb_header *)(bios + i + vbt->bdb_offset);
+
+ /* Grab useful general definitions */
+ parse_general_features(dev_priv, bdb);
+ parse_lfp_panel_data(dev_priv, bdb);
+ parse_sdvo_panel_data(dev_priv, bdb);
+ parse_backlight_data(dev_priv, bdb);
+
+ pci_unmap_rom(pdev, bios);
+
+ return 0;
+}
+
+/**
+ * Destroy and free VBT data
+ */
+void psb_intel_destroy_bios(struct drm_device *dev)
+{
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ struct drm_display_mode *sdvo_lvds_vbt_mode =
+ dev_priv->sdvo_lvds_vbt_mode;
+ struct drm_display_mode *lfp_lvds_vbt_mode =
+ dev_priv->lfp_lvds_vbt_mode;
+ struct bdb_lvds_backlight *lvds_bl =
+ dev_priv->lvds_bl;
+
+ /*free sdvo panel mode*/
+ if (sdvo_lvds_vbt_mode) {
+ dev_priv->sdvo_lvds_vbt_mode = NULL;
+ kfree(sdvo_lvds_vbt_mode);
+ }
+
+ if (lfp_lvds_vbt_mode) {
+ dev_priv->lfp_lvds_vbt_mode = NULL;
+ kfree(lfp_lvds_vbt_mode);
+ }
+
+ if (lvds_bl) {
+ dev_priv->lvds_bl = NULL;
+ kfree(lvds_bl);
+ }
+}
+++ /dev/null
-/*
- * Copyright (c) 2006 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Authors:
- * Eric Anholt <eric@anholt.net>
- *
- */
-#include <drm/drmP.h>
-#include <drm/drm.h>
-#include "psb_drm.h"
-#include "psb_drv.h"
-#include "psb_intel_drv.h"
-#include "psb_intel_reg.h"
-#include "psb_intel_bios.h"
-
-
-static void *find_section(struct bdb_header *bdb, int section_id)
-{
- u8 *base = (u8 *)bdb;
- int index = 0;
- u16 total, current_size;
- u8 current_id;
-
- /* skip to first section */
- index += bdb->header_size;
- total = bdb->bdb_size;
-
- /* walk the sections looking for section_id */
- while (index < total) {
- current_id = *(base + index);
- index++;
- current_size = *((u16 *)(base + index));
- index += 2;
- if (current_id == section_id)
- return base + index;
- index += current_size;
- }
-
- return NULL;
-}
-
-static void 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);
-}
-
-static void parse_backlight_data(struct drm_psb_private *dev_priv,
- struct bdb_header *bdb)
-{
- struct bdb_lvds_backlight *vbt_lvds_bl = NULL;
- struct bdb_lvds_backlight *lvds_bl;
- u8 p_type = 0;
- void *bl_start = NULL;
- struct bdb_lvds_options *lvds_opts
- = find_section(bdb, BDB_LVDS_OPTIONS);
-
- dev_priv->lvds_bl = NULL;
-
- if (lvds_opts)
- p_type = lvds_opts->panel_type;
- else
- return;
-
- bl_start = find_section(bdb, BDB_LVDS_BACKLIGHT);
- vbt_lvds_bl = (struct bdb_lvds_backlight *)(bl_start + 1) + p_type;
-
- lvds_bl = kzalloc(sizeof(*vbt_lvds_bl), GFP_KERNEL);
- if (!lvds_bl) {
- dev_err(dev_priv->dev->dev, "out of memory for backlight data\n");
- return;
- }
- memcpy(lvds_bl, vbt_lvds_bl, sizeof(*vbt_lvds_bl));
- dev_priv->lvds_bl = lvds_bl;
-}
-
-/* Try to find integrated panel data */
-static void parse_lfp_panel_data(struct drm_psb_private *dev_priv,
- struct bdb_header *bdb)
-{
- struct bdb_lvds_options *lvds_options;
- struct bdb_lvds_lfp_data *lvds_lfp_data;
- struct bdb_lvds_lfp_data_entry *entry;
- struct lvds_dvo_timing *dvo_timing;
- struct drm_display_mode *panel_fixed_mode;
-
- /* Defaults if we can't find VBT info */
- dev_priv->lvds_dither = 0;
- dev_priv->lvds_vbt = 0;
-
- lvds_options = find_section(bdb, BDB_LVDS_OPTIONS);
- if (!lvds_options)
- return;
-
- dev_priv->lvds_dither = lvds_options->pixel_dither;
- if (lvds_options->panel_type == 0xff)
- return;
-
- lvds_lfp_data = find_section(bdb, BDB_LVDS_LFP_DATA);
- if (!lvds_lfp_data)
- return;
-
- dev_priv->lvds_vbt = 1;
-
- entry = &lvds_lfp_data->data[lvds_options->panel_type];
- dvo_timing = &entry->dvo_timing;
-
- panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode),
- GFP_KERNEL);
-
- fill_detail_timing_data(panel_fixed_mode, dvo_timing);
-
- if (panel_fixed_mode->htotal > 0 && panel_fixed_mode->vtotal > 0) {
- dev_priv->lfp_lvds_vbt_mode = panel_fixed_mode;
- drm_mode_debug_printmodeline(panel_fixed_mode);
- } else {
- dev_dbg(dev_priv->dev->dev, "ignoring invalid LVDS VBT\n");
- dev_priv->lvds_vbt = 0;
- kfree(panel_fixed_mode);
- }
- return;
-}
-
-/* Try to find sdvo panel data */
-static void parse_sdvo_panel_data(struct drm_psb_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->sdvo_lvds_vbt_mode = NULL;
-
- 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 = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL);
-
- 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;
-}
-
-static void parse_general_features(struct drm_psb_private *dev_priv,
- struct bdb_header *bdb)
-{
- struct bdb_general_features *general;
-
- /* Set sensible defaults in case we can't find the general block */
- dev_priv->int_tv_support = 1;
- dev_priv->int_crt_support = 1;
-
- general = find_section(bdb, BDB_GENERAL_FEATURES);
- if (general) {
- dev_priv->int_tv_support = general->int_tv_support;
- dev_priv->int_crt_support = general->int_crt_support;
- dev_priv->lvds_use_ssc = general->enable_ssc;
-
- if (dev_priv->lvds_use_ssc) {
- dev_priv->lvds_ssc_freq
- = general->ssc_freq ? 100 : 96;
- }
- }
-}
-
-/**
- * psb_intel_init_bios - initialize VBIOS settings & find VBT
- * @dev: DRM device
- *
- * Loads the Video BIOS and checks that the VBT exists. Sets scratch registers
- * to appropriate values.
- *
- * VBT existence is a sanity check that is relied on by other i830_bios.c code.
- * Note that it would be better to use a BIOS call to get the VBT, as BIOSes may
- * feed an updated VBT back through that, compared to what we'll fetch using
- * this method of groping around in the BIOS data.
- *
- * Returns 0 on success, nonzero on failure.
- */
-bool psb_intel_init_bios(struct drm_device *dev)
-{
- struct drm_psb_private *dev_priv = dev->dev_private;
- struct pci_dev *pdev = dev->pdev;
- struct vbt_header *vbt = NULL;
- struct bdb_header *bdb;
- u8 __iomem *bios;
- size_t size;
- int i;
-
- bios = pci_map_rom(pdev, &size);
- if (!bios)
- return -1;
-
- /* Scour memory looking for the VBT signature */
- for (i = 0; i + 4 < size; i++) {
- if (!memcmp(bios + i, "$VBT", 4)) {
- vbt = (struct vbt_header *)(bios + i);
- break;
- }
- }
-
- if (!vbt) {
- dev_err(dev->dev, "VBT signature missing\n");
- pci_unmap_rom(pdev, bios);
- return -1;
- }
-
- bdb = (struct bdb_header *)(bios + i + vbt->bdb_offset);
-
- /* Grab useful general definitions */
- parse_general_features(dev_priv, bdb);
- parse_lfp_panel_data(dev_priv, bdb);
- parse_sdvo_panel_data(dev_priv, bdb);
- parse_backlight_data(dev_priv, bdb);
-
- pci_unmap_rom(pdev, bios);
-
- return 0;
-}
-
-/**
- * Destroy and free VBT data
- */
-void psb_intel_destroy_bios(struct drm_device *dev)
-{
- struct drm_psb_private *dev_priv = dev->dev_private;
- struct drm_display_mode *sdvo_lvds_vbt_mode =
- dev_priv->sdvo_lvds_vbt_mode;
- struct drm_display_mode *lfp_lvds_vbt_mode =
- dev_priv->lfp_lvds_vbt_mode;
- struct bdb_lvds_backlight *lvds_bl =
- dev_priv->lvds_bl;
-
- /*free sdvo panel mode*/
- if (sdvo_lvds_vbt_mode) {
- dev_priv->sdvo_lvds_vbt_mode = NULL;
- kfree(sdvo_lvds_vbt_mode);
- }
-
- if (lfp_lvds_vbt_mode) {
- dev_priv->lfp_lvds_vbt_mode = NULL;
- kfree(lfp_lvds_vbt_mode);
- }
-
- if (lvds_bl) {
- dev_priv->lvds_bl = NULL;
- kfree(lvds_bl);
- }
-}
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff