[PATCH v2 07/10] drm/nouveau: Use supplied HDMI InfoFrames on GF119 hardware

[Alastair Bridgewater]

Now that we have the InfoFrame data being provided, for the most
part, program the hardware to use it.

While we're here, and since the functionality will come in handy
for supporting 3D stereoscopy, implement setting the Vendor
("generic"?) InfoFrame.

Also don't enable any InfoFrame that is not provided, and disable
the Vendor InfoFrame when disabling the output.

Signed-off-by: Alastair Bridgewater <alastair.bridgewater at gmail.com>
---
 .../gpu/drm/nouveau/nvkm/engine/disp/hdmigf119.c   | 40 ++++++++++++++++++----
 1 file changed, 34 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigf119.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigf119.c
index 66ee883..d80e86c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigf119.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigf119.c
@@ -36,6 +36,8 @@ gf119_hdmi_ctrl(NV50_DISP_MTHD_V1)
 	union {
 		struct nv50_disp_sor_hdmi_pwr_v0 v0;
 	} *args = data;
+	struct packed_hdmi_infoframe avi_infoframe;
+	struct packed_hdmi_infoframe vendor_infoframe;
 	u32 ctrl;
 	int ret = -ENOSYS;
 
@@ -60,8 +62,17 @@ gf119_hdmi_ctrl(NV50_DISP_MTHD_V1)
 		    + args->v0.vendor_infoframe_length) < size)
 		return -E2BIG;
 
+	pack_hdmi_infoframe(&avi_infoframe,
+			    data,
+			    args->v0.avi_infoframe_length);
+
+	pack_hdmi_infoframe(&vendor_infoframe,
+			    data + args->v0.avi_infoframe_length,
+			    args->v0.vendor_infoframe_length);
+
 	if (!(ctrl & 0x40000000)) {
 		nvkm_mask(device, 0x616798 + hoff, 0x40000000, 0x00000000);
+		nvkm_mask(device, 0x616730 + hoff, 0x00000001, 0x00000000);
 		nvkm_mask(device, 0x6167a4 + hoff, 0x00000001, 0x00000000);
 		nvkm_mask(device, 0x616714 + hoff, 0x00000001, 0x00000000);
 		return 0;
@@ -69,12 +80,29 @@ gf119_hdmi_ctrl(NV50_DISP_MTHD_V1)
 
 	/* AVI InfoFrame */
 	nvkm_mask(device, 0x616714 + hoff, 0x00000001, 0x00000000);
-	nvkm_wr32(device, 0x61671c + hoff, 0x000d0282);
-	nvkm_wr32(device, 0x616720 + hoff, 0x0000006f);
-	nvkm_wr32(device, 0x616724 + hoff, 0x00000000);
-	nvkm_wr32(device, 0x616728 + hoff, 0x00000000);
-	nvkm_wr32(device, 0x61672c + hoff, 0x00000000);
-	nvkm_mask(device, 0x616714 + hoff, 0x00000001, 0x00000001);
+	if (args->v0.avi_infoframe_length) {
+		nvkm_wr32(device, 0x61671c + hoff, avi_infoframe.header);
+		nvkm_wr32(device, 0x616720 + hoff, avi_infoframe.subpack0_low);
+		nvkm_wr32(device, 0x616724 + hoff, avi_infoframe.subpack0_high);
+		nvkm_wr32(device, 0x616728 + hoff, avi_infoframe.subpack1_low);
+		nvkm_wr32(device, 0x61672c + hoff, avi_infoframe.subpack1_high);
+		nvkm_mask(device, 0x616714 + hoff, 0x00000001, 0x00000001);
+	}
+
+	/* GENERIC(?) / Vendor InfoFrame? */
+	nvkm_mask(device, 0x616730 + hoff, 0x00010001, 0x00010000);
+	if (args->v0.vendor_infoframe_length) {
+		/*
+		 * These appear to be the audio infoframe registers,
+		 * but no other set of infoframe registers has yet
+		 * been found.
+		 */
+		nvkm_wr32(device, 0x616738 + hoff, vendor_infoframe.header);
+		nvkm_wr32(device, 0x61673c + hoff, vendor_infoframe.subpack0_low);
+		nvkm_wr32(device, 0x616740 + hoff, vendor_infoframe.subpack0_high);
+		/* Is there a second (or further?) set of subpack registers here? */
+		nvkm_mask(device, 0x616730 + hoff, 0x00000001, 0x00000001);
+	}
 
 	/* ??? InfoFrame? */
 	nvkm_mask(device, 0x6167a4 + hoff, 0x00000001, 0x00000000);
-- 
2.10.2