#include "i915_drv.h"
#include "intel_bios.h"
+#define SLAVE_ADDR1 0x70
+#define SLAVE_ADDR2 0x72
+
+static int panel_type;
static void *
find_section(struct bdb_header *bdb, int section_id)
return NULL;
}
-/* Try to find panel data */
+static u16
+get_blocksize(void *p)
+{
+ u16 *block_ptr, block_size;
+
+ block_ptr = (u16 *)((char *)p - 2);
+ block_size = *block_ptr;
+ return block_size;
+}
+
+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);
+}
+
+/* Try to find integrated panel data */
static void
-parse_panel_data(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
+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;
+ struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs;
struct bdb_lvds_lfp_data_entry *entry;
struct lvds_dvo_timing *dvo_timing;
struct drm_display_mode *panel_fixed_mode;
+ int lfp_data_size, dvo_timing_offset;
+ int i, temp_downclock;
+ struct drm_display_mode *temp_mode;
/* Defaults if we can't find VBT info */
dev_priv->lvds_dither = 0;
dev_priv->lvds_dither = lvds_options->pixel_dither;
if (lvds_options->panel_type == 0xff)
return;
+ panel_type = lvds_options->panel_type;
lvds_lfp_data = find_section(bdb, BDB_LVDS_LFP_DATA);
if (!lvds_lfp_data)
return;
+ lvds_lfp_data_ptrs = find_section(bdb, BDB_LVDS_LFP_DATA_PTRS);
+ if (!lvds_lfp_data_ptrs)
+ return;
+
dev_priv->lvds_vbt = 1;
- entry = &lvds_lfp_data->data[lvds_options->panel_type];
- dvo_timing = &entry->dvo_timing;
+ lfp_data_size = lvds_lfp_data_ptrs->ptr[1].dvo_timing_offset -
+ lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset;
+ entry = (struct bdb_lvds_lfp_data_entry *)
+ ((uint8_t *)lvds_lfp_data->data + (lfp_data_size *
+ lvds_options->panel_type));
+ dvo_timing_offset = lvds_lfp_data_ptrs->ptr[0].dvo_timing_offset -
+ lvds_lfp_data_ptrs->ptr[0].fp_timing_offset;
- panel_fixed_mode = drm_calloc(1, sizeof(*panel_fixed_mode),
- DRM_MEM_DRIVER);
+ /*
+ * the size of fp_timing varies on the different platform.
+ * So calculate the DVO timing relative offset in LVDS data
+ * entry to get the DVO timing entry
+ */
+ dvo_timing = (struct lvds_dvo_timing *)
+ ((unsigned char *)entry + dvo_timing_offset);
- 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;
+ panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL);
- drm_mode_set_name(panel_fixed_mode);
+ fill_detail_timing_data(panel_fixed_mode, dvo_timing);
- dev_priv->vbt_mode = panel_fixed_mode;
+ dev_priv->lfp_lvds_vbt_mode = panel_fixed_mode;
- DRM_DEBUG("Found panel mode in BIOS VBT tables:\n");
+ DRM_DEBUG_KMS("Found panel mode in BIOS VBT tables:\n");
drm_mode_debug_printmodeline(panel_fixed_mode);
+ temp_mode = kzalloc(sizeof(*temp_mode), GFP_KERNEL);
+ temp_downclock = panel_fixed_mode->clock;
+ /*
+ * enumerate the LVDS panel timing info entry in VBT to check whether
+ * the LVDS downclock is found.
+ */
+ for (i = 0; i < 16; i++) {
+ entry = (struct bdb_lvds_lfp_data_entry *)
+ ((uint8_t *)lvds_lfp_data->data + (lfp_data_size * i));
+ dvo_timing = (struct lvds_dvo_timing *)
+ ((unsigned char *)entry + dvo_timing_offset);
+
+ fill_detail_timing_data(temp_mode, dvo_timing);
+
+ if (temp_mode->hdisplay == panel_fixed_mode->hdisplay &&
+ temp_mode->hsync_start == panel_fixed_mode->hsync_start &&
+ temp_mode->hsync_end == panel_fixed_mode->hsync_end &&
+ temp_mode->htotal == panel_fixed_mode->htotal &&
+ temp_mode->vdisplay == panel_fixed_mode->vdisplay &&
+ temp_mode->vsync_start == panel_fixed_mode->vsync_start &&
+ temp_mode->vsync_end == panel_fixed_mode->vsync_end &&
+ temp_mode->vtotal == panel_fixed_mode->vtotal &&
+ temp_mode->clock < temp_downclock) {
+ /*
+ * downclock is already found. But we expect
+ * to find the lower downclock.
+ */
+ temp_downclock = temp_mode->clock;
+ }
+ /* clear it to zero */
+ memset(temp_mode, 0, sizeof(*temp_mode));
+ }
+ kfree(temp_mode);
+ if (temp_downclock < panel_fixed_mode->clock &&
+ i915_lvds_downclock) {
+ dev_priv->lvds_downclock_avail = 1;
+ dev_priv->lvds_downclock = temp_downclock;
+ DRM_DEBUG_KMS("LVDS downclock is found in VBT. ",
+ "Normal Clock %dKHz, downclock %dKHz\n",
+ temp_downclock, panel_fixed_mode->clock);
+ }
+ 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->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;
}
dev_priv->lvds_use_ssc = general->enable_ssc;
if (dev_priv->lvds_use_ssc) {
- if (IS_I855(dev_priv->dev))
- dev_priv->lvds_ssc_freq = general->ssc_freq ? 66 : 48;
- else
- dev_priv->lvds_ssc_freq = general->ssc_freq ? 100 : 96;
+ if (IS_I85X(dev_priv->dev))
+ dev_priv->lvds_ssc_freq =
+ general->ssc_freq ? 66 : 48;
+ else if (IS_IRONLAKE(dev_priv->dev))
+ dev_priv->lvds_ssc_freq =
+ general->ssc_freq ? 100 : 120;
+ else
+ dev_priv->lvds_ssc_freq =
+ general->ssc_freq ? 100 : 96;
+ }
+ }
+}
+
+static void
+parse_general_definitions(struct drm_i915_private *dev_priv,
+ struct bdb_header *bdb)
+{
+ struct bdb_general_definitions *general;
+ const int crt_bus_map_table[] = {
+ GPIOB,
+ GPIOA,
+ GPIOC,
+ GPIOD,
+ GPIOE,
+ GPIOF,
+ };
+
+ general = find_section(bdb, BDB_GENERAL_DEFINITIONS);
+ if (general) {
+ u16 block_size = get_blocksize(general);
+ if (block_size >= sizeof(*general)) {
+ int bus_pin = general->crt_ddc_gmbus_pin;
+ DRM_DEBUG_KMS("crt_ddc_bus_pin: %d\n", bus_pin);
+ if ((bus_pin >= 1) && (bus_pin <= 6)) {
+ dev_priv->crt_ddc_bus =
+ crt_bus_map_table[bus_pin-1];
+ }
+ } else {
+ DRM_DEBUG_KMS("BDB_GD too small (%d). Invalid.\n",
+ block_size);
+ }
+ }
+}
+
+static void
+parse_sdvo_device_mapping(struct drm_i915_private *dev_priv,
+ struct bdb_header *bdb)
+{
+ struct sdvo_device_mapping *p_mapping;
+ struct bdb_general_definitions *p_defs;
+ struct child_device_config *p_child;
+ int i, child_device_num, count;
+ u16 block_size;
+
+ p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS);
+ if (!p_defs) {
+ DRM_DEBUG_KMS("No general definition block is found\n");
+ return;
+ }
+ /* judge whether the size of child device meets the requirements.
+ * If the child device size obtained from general definition block
+ * is different with sizeof(struct child_device_config), skip the
+ * parsing of sdvo device info
+ */
+ if (p_defs->child_dev_size != sizeof(*p_child)) {
+ /* different child dev size . Ignore it */
+ DRM_DEBUG_KMS("different child size is found. Invalid.\n");
+ return;
+ }
+ /* get the block size of general definitions */
+ block_size = get_blocksize(p_defs);
+ /* get the number of child device */
+ child_device_num = (block_size - sizeof(*p_defs)) /
+ sizeof(*p_child);
+ count = 0;
+ for (i = 0; i < child_device_num; i++) {
+ p_child = &(p_defs->devices[i]);
+ if (!p_child->device_type) {
+ /* skip the device block if device type is invalid */
+ continue;
+ }
+ if (p_child->slave_addr != SLAVE_ADDR1 &&
+ p_child->slave_addr != SLAVE_ADDR2) {
+ /*
+ * If the slave address is neither 0x70 nor 0x72,
+ * it is not a SDVO device. Skip it.
+ */
+ continue;
+ }
+ if (p_child->dvo_port != DEVICE_PORT_DVOB &&
+ p_child->dvo_port != DEVICE_PORT_DVOC) {
+ /* skip the incorrect SDVO port */
+ DRM_DEBUG_KMS("Incorrect SDVO port. Skip it \n");
+ continue;
}
+ DRM_DEBUG_KMS("the SDVO device with slave addr %2x is found on"
+ " %s port\n",
+ p_child->slave_addr,
+ (p_child->dvo_port == DEVICE_PORT_DVOB) ?
+ "SDVOB" : "SDVOC");
+ p_mapping = &(dev_priv->sdvo_mappings[p_child->dvo_port - 1]);
+ if (!p_mapping->initialized) {
+ p_mapping->dvo_port = p_child->dvo_port;
+ p_mapping->slave_addr = p_child->slave_addr;
+ p_mapping->dvo_wiring = p_child->dvo_wiring;
+ p_mapping->initialized = 1;
+ } else {
+ DRM_DEBUG_KMS("Maybe one SDVO port is shared by "
+ "two SDVO device.\n");
+ }
+ if (p_child->slave2_addr) {
+ /* Maybe this is a SDVO device with multiple inputs */
+ /* And the mapping info is not added */
+ DRM_DEBUG_KMS("there exists the slave2_addr. Maybe this"
+ " is a SDVO device with multiple inputs.\n");
+ }
+ count++;
}
+
+ if (!count) {
+ /* No SDVO device info is found */
+ DRM_DEBUG_KMS("No SDVO device info is found in VBT\n");
+ }
+ return;
}
+static void
+parse_driver_features(struct drm_i915_private *dev_priv,
+ struct bdb_header *bdb)
+{
+ struct drm_device *dev = dev_priv->dev;
+ struct bdb_driver_features *driver;
+
+ driver = find_section(bdb, BDB_DRIVER_FEATURES);
+ if (!driver)
+ return;
+
+ if (driver && SUPPORTS_EDP(dev) &&
+ driver->lvds_config == BDB_DRIVER_FEATURE_EDP) {
+ dev_priv->edp_support = 1;
+ } else {
+ dev_priv->edp_support = 0;
+ }
+
+ if (driver && driver->dual_frequency)
+ dev_priv->render_reclock_avail = true;
+}
+
+static void
+parse_edp(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
+{
+ struct bdb_edp *edp;
+
+ edp = find_section(bdb, BDB_EDP);
+ if (!edp) {
+ if (SUPPORTS_EDP(dev_priv->dev) && dev_priv->edp_support) {
+ DRM_DEBUG_KMS("No eDP BDB found but eDP panel supported,\
+ assume 18bpp panel color depth.\n");
+ dev_priv->edp_bpp = 18;
+ }
+ return;
+ }
+
+ switch ((edp->color_depth >> (panel_type * 2)) & 3) {
+ case EDP_18BPP:
+ dev_priv->edp_bpp = 18;
+ break;
+ case EDP_24BPP:
+ dev_priv->edp_bpp = 24;
+ break;
+ case EDP_30BPP:
+ dev_priv->edp_bpp = 30;
+ break;
+ }
+}
+
+static void
+parse_device_mapping(struct drm_i915_private *dev_priv,
+ struct bdb_header *bdb)
+{
+ struct bdb_general_definitions *p_defs;
+ struct child_device_config *p_child, *child_dev_ptr;
+ int i, child_device_num, count;
+ u16 block_size;
+
+ p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS);
+ if (!p_defs) {
+ DRM_DEBUG_KMS("No general definition block is found\n");
+ return;
+ }
+ /* judge whether the size of child device meets the requirements.
+ * If the child device size obtained from general definition block
+ * is different with sizeof(struct child_device_config), skip the
+ * parsing of sdvo device info
+ */
+ if (p_defs->child_dev_size != sizeof(*p_child)) {
+ /* different child dev size . Ignore it */
+ DRM_DEBUG_KMS("different child size is found. Invalid.\n");
+ return;
+ }
+ /* get the block size of general definitions */
+ block_size = get_blocksize(p_defs);
+ /* get the number of child device */
+ child_device_num = (block_size - sizeof(*p_defs)) /
+ sizeof(*p_child);
+ count = 0;
+ /* get the number of child device that is present */
+ for (i = 0; i < child_device_num; i++) {
+ p_child = &(p_defs->devices[i]);
+ if (!p_child->device_type) {
+ /* skip the device block if device type is invalid */
+ continue;
+ }
+ count++;
+ }
+ if (!count) {
+ DRM_DEBUG_KMS("no child dev is parsed from VBT \n");
+ return;
+ }
+ dev_priv->child_dev = kzalloc(sizeof(*p_child) * count, GFP_KERNEL);
+ if (!dev_priv->child_dev) {
+ DRM_DEBUG_KMS("No memory space for child device\n");
+ return;
+ }
+
+ dev_priv->child_dev_num = count;
+ count = 0;
+ for (i = 0; i < child_device_num; i++) {
+ p_child = &(p_defs->devices[i]);
+ if (!p_child->device_type) {
+ /* skip the device block if device type is invalid */
+ continue;
+ }
+ child_dev_ptr = dev_priv->child_dev + count;
+ count++;
+ memcpy((void *)child_dev_ptr, (void *)p_child,
+ sizeof(*p_child));
+ }
+ return;
+}
/**
* intel_init_bios - initialize VBIOS settings & find VBT
* @dev: DRM device
/* Grab useful general definitions */
parse_general_features(dev_priv, bdb);
- parse_panel_data(dev_priv, bdb);
+ parse_general_definitions(dev_priv, bdb);
+ parse_lfp_panel_data(dev_priv, bdb);
+ parse_sdvo_panel_data(dev_priv, bdb);
+ parse_sdvo_device_mapping(dev_priv, bdb);
+ parse_device_mapping(dev_priv, bdb);
+ parse_driver_features(dev_priv, bdb);
+ parse_edp(dev_priv, bdb);
pci_unmap_rom(pdev, bios);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff