summaryrefslogtreecommitdiff
path: root/nvkm/subdev/bios/extdev.c
diff options
context:
space:
mode:
Diffstat (limited to 'nvkm/subdev/bios/extdev.c')
-rw-r--r--nvkm/subdev/bios/extdev.c100
1 files changed, 0 insertions, 100 deletions
diff --git a/nvkm/subdev/bios/extdev.c b/nvkm/subdev/bios/extdev.c
deleted file mode 100644
index 49285d4f7..000000000
--- a/nvkm/subdev/bios/extdev.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright 2012 Nouveau Community
- *
- * 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: Martin Peres
- */
-
-#include <subdev/bios.h>
-#include <subdev/bios/dcb.h>
-#include <subdev/bios/extdev.h>
-
-static u16
-extdev_table(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *len, u8 *cnt)
-{
- u8 dcb_ver, dcb_hdr, dcb_cnt, dcb_len;
- u16 dcb, extdev = 0;
-
- dcb = dcb_table(bios, &dcb_ver, &dcb_hdr, &dcb_cnt, &dcb_len);
- if (!dcb || (dcb_ver != 0x30 && dcb_ver != 0x40))
- return 0x0000;
-
- extdev = nv_ro16(bios, dcb + 18);
- if (!extdev)
- return 0x0000;
-
- *ver = nv_ro08(bios, extdev + 0);
- *hdr = nv_ro08(bios, extdev + 1);
- *cnt = nv_ro08(bios, extdev + 2);
- *len = nv_ro08(bios, extdev + 3);
-
- return extdev + *hdr;
-}
-
-static u16
-nvbios_extdev_entry(struct nouveau_bios *bios, int idx, u8 *ver, u8 *len)
-{
- u8 hdr, cnt;
- u16 extdev = extdev_table(bios, ver, &hdr, len, &cnt);
- if (extdev && idx < cnt)
- return extdev + idx * *len;
- return 0x0000;
-}
-
-static void
-extdev_parse_entry(struct nouveau_bios *bios, u16 offset,
- struct nvbios_extdev_func *entry)
-{
- entry->type = nv_ro08(bios, offset + 0);
- entry->addr = nv_ro08(bios, offset + 1);
- entry->bus = (nv_ro08(bios, offset + 2) >> 4) & 1;
-}
-
-int
-nvbios_extdev_parse(struct nouveau_bios *bios, int idx,
- struct nvbios_extdev_func *func)
-{
- u8 ver, len;
- u16 entry;
-
- if (!(entry = nvbios_extdev_entry(bios, idx, &ver, &len)))
- return -EINVAL;
-
- extdev_parse_entry(bios, entry, func);
-
- return 0;
-}
-
-int
-nvbios_extdev_find(struct nouveau_bios *bios, enum nvbios_extdev_type type,
- struct nvbios_extdev_func *func)
-{
- u8 ver, len, i;
- u16 entry;
-
- i = 0;
- while ((entry = nvbios_extdev_entry(bios, i++, &ver, &len))) {
- extdev_parse_entry(bios, entry, func);
- if (func->type == type)
- return 0;
- }
-
- return -EINVAL;
-}