diff options
Diffstat (limited to 'nvkm/subdev/bios/extdev.c')
-rw-r--r-- | nvkm/subdev/bios/extdev.c | 100 |
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; -} |