drm/nouveau/bios: extend connector table parsing

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

4 files changed, 79 insertions, 16 deletions

diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/conn.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/conn.h
index a32feb3..f3930c2 100644
--- a/drivers/gpu/drm/nouveau/core/include/subdev/bios/conn.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/bios/conn.h
@@ -22,7 +22,25 @@ enum dcb_connector_type {
 	DCB_CONNECTOR_NONE = 0xff
 };
 
-u16 dcb_conntab(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len);
-u16 dcb_conn(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len);
+struct nvbios_connT {
+};
+
+u32 nvbios_connTe(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len);
+u32 nvbios_connTp(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
+		  struct nvbios_connT *info);
+
+struct nvbios_connE {
+	u8 type;
+	u8 location;
+	u8 hpd;
+	u8 dp;
+	u8 di;
+	u8 sr;
+	u8 lcdid;
+};
+
+u32 nvbios_connEe(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *hdr);
+u32 nvbios_connEp(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *hdr,
+		  struct nvbios_connE *info);
 
 #endif
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/conn.c b/drivers/gpu/drm/nouveau/core/subdev/bios/conn.c
index 5ac010e..2ede3bc 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/bios/conn.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bios/conn.c
@@ -28,12 +28,12 @@
 #include <subdev/bios/dcb.h>
 #include <subdev/bios/conn.h>
 
-u16
-dcb_conntab(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
+u32
+nvbios_connTe(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
 {
-	u16 dcb = dcb_table(bios, ver, hdr, cnt, len);
+	u32 dcb = dcb_table(bios, ver, hdr, cnt, len);
 	if (dcb && *ver >= 0x30 && *hdr >= 0x16) {
-		u16 data = nv_ro16(bios, dcb + 0x14);
+		u32 data = nv_ro16(bios, dcb + 0x14);
 		if (data) {
 			*ver = nv_ro08(bios, data + 0);
 			*hdr = nv_ro08(bios, data + 1);
@@ -42,15 +42,59 @@ dcb_conntab(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
 			return data;
 		}
 	}
-	return 0x0000;
+	return 0x00000000;
 }
 
-u16
-dcb_conn(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len)
+u32
+nvbios_connTp(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
+	      struct nvbios_connT *info)
+{
+	u32 data = nvbios_connTe(bios, ver, hdr, cnt, len);
+	memset(info, 0x00, sizeof(*info));
+	switch (!!data * *ver) {
+	case 0x30:
+	case 0x40:
+		return data;
+	default:
+		break;
+	}
+	return 0x00000000;
+}
+
+u32
+nvbios_connEe(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len)
 {
 	u8  hdr, cnt;
-	u16 data = dcb_conntab(bios, ver, &hdr, &cnt, len);
+	u32 data = nvbios_connTe(bios, ver, &hdr, &cnt, len);
 	if (data && idx < cnt)
 		return data + hdr + (idx * *len);
-	return 0x0000;
+	return 0x00000000;
+}
+
+u32
+nvbios_connEp(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len,
+	      struct nvbios_connE *info)
+{
+	u32 data = nvbios_connEe(bios, idx, ver, len);
+	memset(info, 0x00, sizeof(*info));
+	switch (!!data * *ver) {
+	case 0x30:
+	case 0x40:
+		info->type     =  nv_ro08(bios, data + 0x00);
+		info->location =  nv_ro08(bios, data + 0x01) & 0x0f;
+		info->hpd      = (nv_ro08(bios, data + 0x01) & 0x30) >> 4;
+		info->dp       = (nv_ro08(bios, data + 0x01) & 0xc0) >> 6;
+		if (*len < 4)
+			return data;
+		info->hpd     |= (nv_ro08(bios, data + 0x02) & 0x03) << 2;
+		info->dp      |=  nv_ro08(bios, data + 0x02) & 0x0c;
+		info->di       = (nv_ro08(bios, data + 0x02) & 0xf0) >> 4;
+		info->hpd     |= (nv_ro08(bios, data + 0x03) & 0x07) << 4;
+		info->sr       = (nv_ro08(bios, data + 0x03) & 0x08) >> 3;
+		info->lcdid    = (nv_ro08(bios, data + 0x03) & 0x70) >> 4;
+		return data;
+	default:
+		break;
+	}
+	return 0x00000000;
 }
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
index acaeaf7..626380f 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bios/init.c
@@ -98,15 +98,16 @@ static u8
 init_conn(struct nvbios_init *init)
 {
 	struct nouveau_bios *bios = init->bios;
-	u8  ver, len;
-	u16 conn;
+	struct nvbios_connE connE;
+	u8  ver, hdr;
+	u32 conn;
 
 	if (init_exec(init)) {
 		if (init->outp) {
 			conn = init->outp->connector;
-			conn = dcb_conn(bios, conn, &ver, &len);
+			conn = nvbios_connEp(bios, conn, &ver, &hdr, &connE);
 			if (conn)
-				return nv_ro08(bios, conn);
+				return connE.type;
 		}
 
 		error("script needs connector type\n");
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mxm/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/mxm/nv50.c
index 64f8b47..fcaabe8 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mxm/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mxm/nv50.c
@@ -150,7 +150,7 @@ mxm_dcb_sanitise_entry(struct nouveau_bios *bios, void *data, int idx, u16 pdcb)
 	 * common example is DP->eDP.
 	 */
 	conn  = bios->data;
-	conn += dcb_conn(bios, (ctx.outp[0] & 0x0000f000) >> 12, &ver, &len);
+	conn += nvbios_connEe(bios, (ctx.outp[0] & 0x0000f000) >> 12, &ver, &len);
 	type  = conn[0];
 	switch (ctx.desc.conn_type) {
 	case 0x01: /* LVDS */