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@@ -0,0 +1,137 @@
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+/*
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+ * Copyright 2013 Red Hat Inc.
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a
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+ * copy of this software and associated documentation files (the "Software"),
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+ * to deal in the Software without restriction, including without limitation
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+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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+ * and/or sell copies of the Software, and to permit persons to whom the
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+ * Software is furnished to do so, subject to the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be included in
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+ * all copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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+ * OTHER DEALINGS IN THE SOFTWARE.
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+ *
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+ * Authors: Ben Skeggs
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+ */
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+
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+#include <subdev/bios.h>
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+#include <subdev/bios/bit.h>
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+#include <subdev/bios/M0209.h>
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+
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+u32
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+nvbios_M0209Te(struct nouveau_bios *bios,
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+ u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz)
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+{
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+ struct bit_entry bit_M;
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+ u32 data = 0x00000000;
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+
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+ if (!bit_entry(bios, 'M', &bit_M)) {
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+ if (bit_M.version == 2 && bit_M.length > 0x0c)
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+ data = nv_ro32(bios, bit_M.offset + 0x09);
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+ if (data) {
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+ *ver = nv_ro08(bios, data + 0x00);
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+ switch (*ver) {
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+ case 0x10:
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+ *hdr = nv_ro08(bios, data + 0x01);
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+ *len = nv_ro08(bios, data + 0x02);
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+ *ssz = nv_ro08(bios, data + 0x03);
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+ *snr = 1;
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+ *cnt = nv_ro08(bios, data + 0x04);
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+ return data;
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+ default:
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+ break;
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+ }
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+ }
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+ }
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+
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+ return 0x00000000;
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+}
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+
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+u32
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+nvbios_M0209Ee(struct nouveau_bios *bios, int idx,
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+ u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
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+{
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+ u8 snr, ssz;
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+ u32 data = nvbios_M0209Te(bios, ver, hdr, cnt, len, &snr, &ssz);
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+ if (data && idx < *cnt) {
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+ data = data + *hdr + idx * (*len + (snr * ssz));
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+ *hdr = *len;
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+ *cnt = snr;
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+ *len = ssz;
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+ return data;
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+ }
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+ return 0x00000000;
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+}
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+
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+u32
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+nvbios_M0209Ep(struct nouveau_bios *bios, int idx,
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+ u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
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+ struct nvbios_M0209E *info)
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+{
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+ u32 data = nvbios_M0209Ee(bios, idx, ver, hdr, cnt, len);
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+ memset(info, 0x00, sizeof(*info));
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+ switch (!!data * *ver) {
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+ case 0x10:
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+ info->v00_40 = (nv_ro08(bios, data + 0x00) & 0x40) >> 6;
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+ info->bits = nv_ro08(bios, data + 0x00) & 0x3f;
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+ info->modulo = nv_ro08(bios, data + 0x01);
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+ info->v02_40 = (nv_ro08(bios, data + 0x02) & 0x40) >> 6;
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+ info->v02_07 = nv_ro08(bios, data + 0x02) & 0x07;
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+ info->v03 = nv_ro08(bios, data + 0x03);
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+ return data;
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+ default:
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+ break;
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+ }
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+ return 0x00000000;
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+}
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+
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+u32
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+nvbios_M0209Se(struct nouveau_bios *bios, int ent, int idx, u8 *ver, u8 *hdr)
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+{
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+
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+ u8 cnt, len;
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+ u32 data = nvbios_M0209Ee(bios, ent, ver, hdr, &cnt, &len);
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+ if (data && idx < cnt) {
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+ data = data + *hdr + idx * len;
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+ *hdr = len;
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+ return data;
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+ }
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+ return 0x00000000;
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+}
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+
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+u32
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+nvbios_M0209Sp(struct nouveau_bios *bios, int ent, int idx, u8 *ver, u8 *hdr,
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+ struct nvbios_M0209S *info)
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+{
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+ struct nvbios_M0209E M0209E;
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+ u8 cnt, len;
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+ u32 data = nvbios_M0209Ep(bios, ent, ver, hdr, &cnt, &len, &M0209E);
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+ if (data) {
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+ u32 i, data = nvbios_M0209Se(bios, ent, idx, ver, hdr);
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+ memset(info, 0x00, sizeof(*info));
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+ switch (!!data * *ver) {
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+ case 0x10:
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+ for (i = 0; i < ARRAY_SIZE(info->data); i++) {
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+ u32 bits = (i % M0209E.modulo) * M0209E.bits;
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+ u32 mask = (1ULL << M0209E.bits) - 1;
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+ u16 off = bits / 8;
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+ u8 mod = bits % 8;
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+ info->data[i] = nv_ro32(bios, data + off);
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+ info->data[i] = info->data[i] >> mod;
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+ info->data[i] = info->data[i] & mask;
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+ }
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+ return data;
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+ default:
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+ break;
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+ }
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+ }
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+ return 0x00000000;
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+}
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Ben Skeggs