autoport: Write autoport together with porting guide for sandy/ivybridge.

This should be able to generate bootable ports for sandy/ivy, possible with
minor fixes. Howto is in readme.md

Change-Id: Ia126cf0939ef2dc2cdbb7ea100d2b63ea6b02f28
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7131
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>

util/autoport/azalia.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"fmt"
+	"sort"
+)
+
+type azalia struct {
+}
+
+func (i azalia) Scan(ctx Context, addr PCIDevData) {
+	az := Create(ctx, "hda_verb.c")
+	defer az.Close()
+
+	az.WriteString(
+		`#include <device/azalia_device.h>
+
+const u32 cim_verb_data[] = {
+`)
+
+	for _, codec := range ctx.InfoSource.GetAzaliaCodecs() {
+		fmt.Fprintf(az, "\t0x%08x, /* Codec Vendor / Device ID: %s */\n",
+			codec.VendorID, codec.Name)
+		fmt.Fprintf(az, "\t0x%08x, /* Subsystem ID */\n",
+			codec.SubsystemID)
+		fmt.Fprintf(az, "\n\t0x%08x, /* Number of 4 dword sets */\n",
+			len(codec.PinConfig)+1)
+		fmt.Fprintf(az, "\t/* NID 0x01: Subsystem ID.  */\n")
+		fmt.Fprintf(az, "\tAZALIA_SUBVENDOR(0x%x, 0x%08x),\n",
+			codec.CodecNo, codec.SubsystemID)
+
+		keys := []int{}
+		for nid, _ := range codec.PinConfig {
+			keys = append(keys, nid)
+		}
+
+		sort.Ints(keys)
+
+		for _, nid := range keys {
+			fmt.Fprintf(az, "\n\t/* NID 0x%02x.  */\n", nid)
+			fmt.Fprintf(az, "\tAZALIA_PIN_CFG(0x%x, 0x%02x, 0x%08x),\n",
+				codec.CodecNo, nid, codec.PinConfig[nid])
+		}
+	}
+
+	az.WriteString(
+		`};
+
+const u32 pc_beep_verbs[0] = {};
+
+AZALIA_ARRAY_SIZES;
+`)
+
+	PutPCIDev(addr, "Audio controller")
+}
+
+func init() {
+	/* I82801GX/I945 */
+	RegisterPCI(0x8086, 0x27d8, azalia{})
+	/* BD82X6X/sandybridge */
+	RegisterPCI(0x8086, 0x1c20, azalia{})
+	/* C216/ivybridge */
+	RegisterPCI(0x8086, 0x1e20, azalia{})
+}