Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvkm / subdev / bios / conn.c

diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/conn.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/conn.c
new file mode 100644 (file)
index 0000000..706a165
--- /dev/null
+++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/bios/conn.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include <subdev/bios.h>
+#include <subdev/bios/dcb.h>
+#include <subdev/bios/conn.h>
+
+u32
+nvbios_connTe(struct nvkm_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
+{
+       u32 dcb = dcb_table(bios, ver, hdr, cnt, len);
+       if (dcb && *ver >= 0x30 && *hdr >= 0x16) {
+               u32 data = nv_ro16(bios, dcb + 0x14);
+               if (data) {
+                       *ver = nv_ro08(bios, data + 0);
+                       *hdr = nv_ro08(bios, data + 1);
+                       *cnt = nv_ro08(bios, data + 2);
+                       *len = nv_ro08(bios, data + 3);
+                       return data;
+               }
+       }
+       return 0x00000000;
+}
+
+u32
+nvbios_connTp(struct nvkm_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 nvkm_bios *bios, u8 idx, u8 *ver, u8 *len)
+{
+       u8  hdr, cnt;
+       u32 data = nvbios_connTe(bios, ver, &hdr, &cnt, len);
+       if (data && idx < cnt)
+               return data + hdr + (idx * *len);
+       return 0x00000000;
+}
+
+u32
+nvbios_connEp(struct nvkm_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;
+}