drm/i915: Add the structure of child_device_config in video BIOS tables.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>

1 files changed, 93 insertions, 8 deletions

diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h
index 8ca2cde15804..fe72e1c225d8 100644
--- a/drivers/gpu/drm/i915/intel_bios.h
+++ b/drivers/gpu/drm/i915/intel_bios.h
@@ -135,6 +135,86 @@ struct bdb_general_features {
         u8 rsvd11:6; /* finish byte */
 } __attribute__((packed));
 
+/* pre-915 */
+#define GPIO_PIN_DVI_LVDS       0x03 /* "DVI/LVDS DDC GPIO pins" */
+#define GPIO_PIN_ADD_I2C        0x05 /* "ADDCARD I2C GPIO pins" */
+#define GPIO_PIN_ADD_DDC        0x04 /* "ADDCARD DDC GPIO pins" */
+#define GPIO_PIN_ADD_DDC_I2C    0x06 /* "ADDCARD DDC/I2C GPIO pins" */
+
+/* Pre 915 */
+#define DEVICE_TYPE_NONE        0x00
+#define DEVICE_TYPE_CRT         0x01
+#define DEVICE_TYPE_TV          0x09
+#define DEVICE_TYPE_EFP         0x12
+#define DEVICE_TYPE_LFP         0x22
+/* On 915+ */
+#define DEVICE_TYPE_CRT_DPMS            0x6001
+#define DEVICE_TYPE_CRT_DPMS_HOTPLUG    0x4001
+#define DEVICE_TYPE_TV_COMPOSITE        0x0209
+#define DEVICE_TYPE_TV_MACROVISION      0x0289
+#define DEVICE_TYPE_TV_RF_COMPOSITE     0x020c
+#define DEVICE_TYPE_TV_SVIDEO_COMPOSITE 0x0609
+#define DEVICE_TYPE_TV_SCART            0x0209
+#define DEVICE_TYPE_TV_CODEC_HOTPLUG_PWR 0x6009
+#define DEVICE_TYPE_EFP_HOTPLUG_PWR     0x6012
+#define DEVICE_TYPE_EFP_DVI_HOTPLUG_PWR 0x6052
+#define DEVICE_TYPE_EFP_DVI_I           0x6053
+#define DEVICE_TYPE_EFP_DVI_D_DUAL      0x6152
+#define DEVICE_TYPE_EFP_DVI_D_HDCP      0x60d2
+#define DEVICE_TYPE_OPENLDI_HOTPLUG_PWR 0x6062
+#define DEVICE_TYPE_OPENLDI_DUALPIX     0x6162
+#define DEVICE_TYPE_LFP_PANELLINK       0x5012
+#define DEVICE_TYPE_LFP_CMOS_PWR        0x5042
+#define DEVICE_TYPE_LFP_LVDS_PWR        0x5062
+#define DEVICE_TYPE_LFP_LVDS_DUAL       0x5162
+#define DEVICE_TYPE_LFP_LVDS_DUAL_HDCP  0x51e2
+
+#define DEVICE_CFG_NONE         0x00
+#define DEVICE_CFG_12BIT_DVOB   0x01
+#define DEVICE_CFG_12BIT_DVOC   0x02
+#define DEVICE_CFG_24BIT_DVOBC  0x09
+#define DEVICE_CFG_24BIT_DVOCB  0x0a
+#define DEVICE_CFG_DUAL_DVOB    0x11
+#define DEVICE_CFG_DUAL_DVOC    0x12
+#define DEVICE_CFG_DUAL_DVOBC   0x13
+#define DEVICE_CFG_DUAL_LINK_DVOBC      0x19
+#define DEVICE_CFG_DUAL_LINK_DVOCB      0x1a
+
+#define DEVICE_WIRE_NONE        0x00
+#define DEVICE_WIRE_DVOB        0x01
+#define DEVICE_WIRE_DVOC        0x02
+#define DEVICE_WIRE_DVOBC       0x03
+#define DEVICE_WIRE_DVOBB       0x05
+#define DEVICE_WIRE_DVOCC       0x06
+#define DEVICE_WIRE_DVOB_MASTER 0x0d
+#define DEVICE_WIRE_DVOC_MASTER 0x0e
+
+#define DEVICE_PORT_DVOA        0x00 /* none on 845+ */
+#define DEVICE_PORT_DVOB        0x01
+#define DEVICE_PORT_DVOC        0x02
+
+struct child_device_config {
+        u16 handle;
+        u16 device_type;
+        u8  device_id[10]; /* See DEVICE_TYPE_* above */
+        u16 addin_offset;
+        u8  dvo_port; /* See Device_PORT_* above */
+        u8  i2c_pin;
+        u8  slave_addr;
+        u8  ddc_pin;
+        u16 edid_ptr;
+        u8  dvo_cfg; /* See DEVICE_CFG_* above */
+        u8  dvo2_port;
+        u8  i2c2_pin;
+        u8  slave2_addr;
+        u8  ddc2_pin;
+        u8  capabilities;
+        u8  dvo_wiring;/* See DEVICE_WIRE_* above */
+        u8  dvo2_wiring;
+        u16 extended_type;
+        u8  dvo_function;
+} __attribute__((packed));
+
 struct bdb_general_definitions {
         /* DDC GPIO */
         u8 crt_ddc_gmbus_pin;
@@ -149,14 +229,19 @@ struct bdb_general_definitions {
         u8 boot_display[2];
         u8 child_dev_size;
 
-        /* device info */
-        u8 tv_or_lvds_info[33];
-        u8 dev1[33];
-        u8 dev2[33];
-        u8 dev3[33];
-        u8 dev4[33];
-        /* may be another device block here on some platforms */
-};
+        /*
+         * Device info:
+         * If TV is present, it'll be at devices[0].
+         * LVDS will be next, either devices[0] or [1], if present.
+         * On some platforms the number of device is 6. But could be as few as
+         * 4 if both TV and LVDS are missing.
+         * And the device num is related with the size of general definition
+         * block. It is obtained by using the following formula:
+         * number = (block_size - sizeof(bdb_general_definitions))/
+         *              sizeof(child_device_config);
+         */
+        struct child_device_config devices[0];
+} __attribute__((packed));
 
 struct bdb_lvds_options {
         u8 panel_type;