140 lines
3.9 KiB
C
140 lines
3.9 KiB
C
/*
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* Copyright 2012 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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#include "ior.h"
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#include "head.h"
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#include <subdev/i2c.h>
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#include <subdev/timer.h>
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static void
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nv50_pior_clock(struct nvkm_ior *pior)
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{
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struct nvkm_device *device = pior->disp->engine.subdev.device;
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const u32 poff = nv50_ior_base(pior);
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nvkm_mask(device, 0x614380 + poff, 0x00000707, 0x00000001);
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}
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static int
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nv50_pior_dp_links(struct nvkm_ior *pior, struct nvkm_i2c_aux *aux)
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{
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int ret = nvkm_i2c_aux_lnk_ctl(aux, pior->dp.nr, pior->dp.bw,
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pior->dp.ef);
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if (ret)
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return ret;
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return 1;
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}
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static void
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nv50_pior_power_wait(struct nvkm_device *device, u32 poff)
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{
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nvkm_msec(device, 2000,
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if (!(nvkm_rd32(device, 0x61e004 + poff) & 0x80000000))
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break;
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);
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}
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static void
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nv50_pior_power(struct nvkm_ior *pior, bool normal, bool pu,
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bool data, bool vsync, bool hsync)
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{
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struct nvkm_device *device = pior->disp->engine.subdev.device;
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const u32 poff = nv50_ior_base(pior);
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const u32 shift = normal ? 0 : 16;
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const u32 state = 0x80000000 | (0x00000001 * !!pu) << shift;
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const u32 field = 0x80000000 | (0x00000101 << shift);
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nv50_pior_power_wait(device, poff);
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nvkm_mask(device, 0x61e004 + poff, field, state);
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nv50_pior_power_wait(device, poff);
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}
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void
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nv50_pior_depth(struct nvkm_ior *ior, struct nvkm_ior_state *state, u32 ctrl)
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{
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/* GF119 moves this information to per-head methods, which is
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* a lot more convenient, and where our shared code expect it.
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*/
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if (state->head && state == &ior->asy) {
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struct nvkm_head *head =
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nvkm_head_find(ior->disp, __ffs(state->head));
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if (!WARN_ON(!head)) {
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struct nvkm_head_state *state = &head->asy;
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switch ((ctrl & 0x000f0000) >> 16) {
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case 6: state->or.depth = 30; break;
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case 5: state->or.depth = 24; break;
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case 2: state->or.depth = 18; break;
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case 0: state->or.depth = 18; break; /*XXX*/
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default:
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state->or.depth = 18;
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WARN_ON(1);
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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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static void
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nv50_pior_state(struct nvkm_ior *pior, struct nvkm_ior_state *state)
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{
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struct nvkm_device *device = pior->disp->engine.subdev.device;
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const u32 coff = pior->id * 8 + (state == &pior->arm) * 4;
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u32 ctrl = nvkm_rd32(device, 0x610b80 + coff);
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state->proto_evo = (ctrl & 0x00000f00) >> 8;
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state->rgdiv = 1;
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switch (state->proto_evo) {
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case 0: state->proto = TMDS; break;
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default:
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state->proto = UNKNOWN;
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break;
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}
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state->head = ctrl & 0x00000003;
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nv50_pior_depth(pior, state, ctrl);
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}
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static const struct nvkm_ior_func
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nv50_pior = {
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.state = nv50_pior_state,
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.power = nv50_pior_power,
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.clock = nv50_pior_clock,
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.dp = {
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.links = nv50_pior_dp_links,
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},
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};
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int
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nv50_pior_new(struct nvkm_disp *disp, int id)
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{
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return nvkm_ior_new_(&nv50_pior, disp, PIOR, id);
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}
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int
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nv50_pior_cnt(struct nvkm_disp *disp, unsigned long *pmask)
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{
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struct nvkm_device *device = disp->engine.subdev.device;
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*pmask = (nvkm_rd32(device, 0x610184) & 0x70000000) >> 28;
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return 3;
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}
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