diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/mxm/mxms.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/mxm/mxms.c | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mxm/mxms.c b/drivers/gpu/drm/nouveau/core/subdev/mxm/mxms.c deleted file mode 100644 index 4bde7f7f7b81..000000000000 --- a/drivers/gpu/drm/nouveau/core/subdev/mxm/mxms.c +++ /dev/null @@ -1,193 +0,0 @@ -/* - * 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/mxm.h> -#include "mxms.h" - -#define ROM16(x) le16_to_cpu(*(u16 *)&(x)) -#define ROM32(x) le32_to_cpu(*(u32 *)&(x)) - -static u8 * -mxms_data(struct nouveau_mxm *mxm) -{ - return mxm->mxms; - -} - -u16 -mxms_version(struct nouveau_mxm *mxm) -{ - u8 *mxms = mxms_data(mxm); - u16 version = (mxms[4] << 8) | mxms[5]; - switch (version ) { - case 0x0200: - case 0x0201: - case 0x0300: - return version; - default: - break; - } - - nv_debug(mxm, "unknown version %d.%d\n", mxms[4], mxms[5]); - return 0x0000; -} - -u16 -mxms_headerlen(struct nouveau_mxm *mxm) -{ - return 8; -} - -u16 -mxms_structlen(struct nouveau_mxm *mxm) -{ - return *(u16 *)&mxms_data(mxm)[6]; -} - -bool -mxms_checksum(struct nouveau_mxm *mxm) -{ - u16 size = mxms_headerlen(mxm) + mxms_structlen(mxm); - u8 *mxms = mxms_data(mxm), sum = 0; - while (size--) - sum += *mxms++; - if (sum) { - nv_debug(mxm, "checksum invalid\n"); - return false; - } - return true; -} - -bool -mxms_valid(struct nouveau_mxm *mxm) -{ - u8 *mxms = mxms_data(mxm); - if (*(u32 *)mxms != 0x5f4d584d) { - nv_debug(mxm, "signature invalid\n"); - return false; - } - - if (!mxms_version(mxm) || !mxms_checksum(mxm)) - return false; - - return true; -} - -bool -mxms_foreach(struct nouveau_mxm *mxm, u8 types, - bool (*exec)(struct nouveau_mxm *, u8 *, void *), void *info) -{ - u8 *mxms = mxms_data(mxm); - u8 *desc = mxms + mxms_headerlen(mxm); - u8 *fini = desc + mxms_structlen(mxm) - 1; - while (desc < fini) { - u8 type = desc[0] & 0x0f; - u8 headerlen = 0; - u8 recordlen = 0; - u8 entries = 0; - - switch (type) { - case 0: /* Output Device Structure */ - if (mxms_version(mxm) >= 0x0300) - headerlen = 8; - else - headerlen = 6; - break; - case 1: /* System Cooling Capability Structure */ - case 2: /* Thermal Structure */ - case 3: /* Input Power Structure */ - headerlen = 4; - break; - case 4: /* GPIO Device Structure */ - headerlen = 4; - recordlen = 2; - entries = (ROM32(desc[0]) & 0x01f00000) >> 20; - break; - case 5: /* Vendor Specific Structure */ - headerlen = 8; - break; - case 6: /* Backlight Control Structure */ - if (mxms_version(mxm) >= 0x0300) { - headerlen = 4; - recordlen = 8; - entries = (desc[1] & 0xf0) >> 4; - } else { - headerlen = 8; - } - break; - case 7: /* Fan Control Structure */ - headerlen = 8; - recordlen = 4; - entries = desc[1] & 0x07; - break; - default: - nv_debug(mxm, "unknown descriptor type %d\n", type); - return false; - } - - if (nv_subdev(mxm)->debug >= NV_DBG_DEBUG && (exec == NULL)) { - static const char * mxms_desc_name[] = { - "ODS", "SCCS", "TS", "IPS", - "GSD", "VSS", "BCS", "FCS", - }; - u8 *dump = desc; - int i, j; - - nv_debug(mxm, "%4s: ", mxms_desc_name[type]); - for (j = headerlen - 1; j >= 0; j--) - pr_cont("%02x", dump[j]); - pr_cont("\n"); - dump += headerlen; - - for (i = 0; i < entries; i++, dump += recordlen) { - nv_debug(mxm, " "); - for (j = recordlen - 1; j >= 0; j--) - pr_cont("%02x", dump[j]); - pr_cont("\n"); - } - } - - if (types & (1 << type)) { - if (!exec(mxm, desc, info)) - return false; - } - - desc += headerlen + (entries * recordlen); - } - - return true; -} - -void -mxms_output_device(struct nouveau_mxm *mxm, u8 *pdata, struct mxms_odev *desc) -{ - u64 data = ROM32(pdata[0]); - if (mxms_version(mxm) >= 0x0300) - data |= (u64)ROM16(pdata[4]) << 32; - - desc->outp_type = (data & 0x00000000000000f0ULL) >> 4; - desc->ddc_port = (data & 0x0000000000000f00ULL) >> 8; - desc->conn_type = (data & 0x000000000001f000ULL) >> 12; - desc->dig_conn = (data & 0x0000000000780000ULL) >> 19; -} |