/* * Copyright 2011 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 #include #include #include #include #include "mxms.h" struct nv50_mxm_priv { struct nouveau_mxm base; }; struct context { u32 *outp; struct mxms_odev desc; }; static bool mxm_match_tmds_partner(struct nouveau_mxm *mxm, u8 *data, void *info) { struct context *ctx = info; struct mxms_odev desc; mxms_output_device(mxm, data, &desc); if (desc.outp_type == 2 && desc.dig_conn == ctx->desc.dig_conn) return false; return true; } static bool mxm_match_dcb(struct nouveau_mxm *mxm, u8 *data, void *info) { struct nouveau_bios *bios = nouveau_bios(mxm); struct context *ctx = info; u64 desc = *(u64 *)data; mxms_output_device(mxm, data, &ctx->desc); /* match dcb encoder type to mxm-ods device type */ if ((ctx->outp[0] & 0x0000000f) != ctx->desc.outp_type) return true; /* digital output, have some extra stuff to match here, there's a * table in the vbios that provides a mapping from the mxm digital * connection enum values to SOR/link */ if ((desc & 0x00000000000000f0) >= 0x20) { /* check against sor index */ u8 link = mxm_sor_map(bios, ctx->desc.dig_conn); if ((ctx->outp[0] & 0x0f000000) != (link & 0x0f) << 24) return true; /* check dcb entry has a compatible link field */ link = (link & 0x30) >> 4; if ((link & ((ctx->outp[1] & 0x00000030) >> 4)) != link) return true; } /* mark this descriptor accounted for by setting invalid device type, * except of course some manufactures don't follow specs properly and * we need to avoid killing off the TMDS function on DP connectors * if MXM-SIS is missing an entry for it. */ data[0] &= ~0xf0; if (ctx->desc.outp_type == 6 && ctx->desc.conn_type == 6 && mxms_foreach(mxm, 0x01, mxm_match_tmds_partner, ctx)) { data[0] |= 0x20; /* modify descriptor to match TMDS now */ } else { data[0] |= 0xf0; } return false; } static int mxm_dcb_sanitise_entry(struct nouveau_bios *bios, void *data, int idx, u16 pdcb) { struct nouveau_mxm *mxm = data; struct context ctx = { .outp = (u32 *)(bios->data + pdcb) }; u8 type, i2cidx, link, ver, len; u8 *conn; /* look for an output device structure that matches this dcb entry. * if one isn't found, disable it. */ if (mxms_foreach(mxm, 0x01, mxm_match_dcb, &ctx)) { nv_debug(mxm, "disable %d: 0x%08x 0x%08x\n", idx, ctx.outp[0], ctx.outp[1]); ctx.outp[0] |= 0x0000000f; return 0; } /* modify the output's ddc/aux port, there's a pointer to a table * with the mapping from mxm ddc/aux port to dcb i2c_index in the * vbios mxm table */ i2cidx = mxm_ddc_map(bios, ctx.desc.ddc_port); if ((ctx.outp[0] & 0x0000000f) != DCB_OUTPUT_DP) i2cidx = (i2cidx & 0x0f) << 4; else i2cidx = (i2cidx & 0xf0); if (i2cidx != 0xf0) { ctx.outp[0] &= ~0x000000f0; ctx.outp[0] |= i2cidx; } /* override dcb sorconf.link, based on what mxm data says */ switch (ctx.desc.outp_type) { case 0x00: /* Analog CRT */ case 0x01: /* Analog TV/HDTV */ break; default: link = mxm_sor_map(bios, ctx.desc.dig_conn) & 0x30; ctx.outp[1] &= ~0x00000030; ctx.outp[1] |= link; break; } /* we may need to fixup various other vbios tables based on what * the descriptor says the connector type should be. * * in a lot of cases, the vbios tables will claim DVI-I is possible, * and the mxm data says the connector is really HDMI. another * common example is DP->eDP. */ conn = bios->data; conn += dcb_conn(bios, (ctx.outp[0] & 0x0000f000) >> 12, &ver, &len); type = conn[0]; switch (ctx.desc.conn_type) { case 0x01: /* LVDS */ ctx.outp[1] |= 0x00000004; /* use_power_scripts */ /* XXX: modify default link width in LVDS table */ break; case 0x02: /* HDMI */ type = DCB_CONNECTOR_HDMI_1; break; case 0x03: /* DVI-D */ type = DCB_CONNECTOR_DVI_D; break; case 0x0e: /* eDP, falls through to DPint */ ctx.outp[1] |= 0x00010000; case 0x07: /* DP internal, wtf is this?? HP8670w */ ctx.outp[1] |= 0x00000004; /* use_power_scripts? */ type = DCB_CONNECTOR_eDP; break; default: break; } if (mxms_version(mxm) >= 0x0300) conn[0] = type; return 0; } static bool mxm_show_unmatched(struct nouveau_mxm *mxm, u8 *data, void *info) { u64 desc = *(u64 *)data; if ((desc & 0xf0) != 0xf0) nv_info(mxm, "unmatched output device 0x%016llx\n", desc); return true; } static void mxm_dcb_sanitise(struct nouveau_mxm *mxm) { struct nouveau_bios *bios = nouveau_bios(mxm); u8 ver, hdr, cnt, len; u16 dcb = dcb_table(bios, &ver, &hdr, &cnt, &len); if (dcb == 0x0000 || ver != 0x40) { nv_debug(mxm, "unsupported DCB version\n"); return; } dcb_outp_foreach(bios, mxm, mxm_dcb_sanitise_entry); mxms_foreach(mxm, 0x01, mxm_show_unmatched, NULL); } static int nv50_mxm_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nouveau_oclass *oclass, void *data, u32 size, struct nouveau_object **pobject) { struct nv50_mxm_priv *priv; int ret; ret = nouveau_mxm_create(parent, engine, oclass, &priv); *pobject = nv_object(priv); if (ret) return ret; if (priv->base.action & MXM_SANITISE_DCB) mxm_dcb_sanitise(&priv->base); return 0; } struct nouveau_oclass nv50_mxm_oclass = { .handle = NV_SUBDEV(MXM, 0x50), .ofuncs = &(struct nouveau_ofuncs) { .ctor = nv50_mxm_ctor, .dtor = _nouveau_mxm_dtor, .init = _nouveau_mxm_init, .fini = _nouveau_mxm_fini, }, };