LXR linux/drivers/gpu/drm/nouveau/nvkm/engine/disp/piornv50.c

   1/*
   2 * Copyright 2012 Red Hat Inc.
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 *
  22 * Authors: Ben Skeggs
  23 */
  24#include "outpdp.h"
  25#include "nv50.h"
  26
  27#include <core/client.h>
  28#include <subdev/i2c.h>
  29#include <subdev/timer.h>
  30
  31#include <nvif/cl5070.h>
  32#include <nvif/unpack.h>
  33
  34int
  35nv50_pior_power(NV50_DISP_MTHD_V1)
  36{
  37        struct nvkm_device *device = disp->base.engine.subdev.device;
  38        const u32 soff = outp->or * 0x800;
  39        union {
  40                struct nv50_disp_pior_pwr_v0 v0;
  41        } *args = data;
  42        u32 ctrl, type;
  43        int ret = -ENOSYS;
  44
  45        nvif_ioctl(object, "disp pior pwr size %d\n", size);
  46        if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
  47                nvif_ioctl(object, "disp pior pwr vers %d state %d type %x\n",
  48                           args->v0.version, args->v0.state, args->v0.type);
  49                if (args->v0.type > 0x0f)
  50                        return -EINVAL;
  51                ctrl = !!args->v0.state;
  52                type = args->v0.type;
  53        } else
  54                return ret;
  55
  56        nvkm_msec(device, 2000,
  57                if (!(nvkm_rd32(device, 0x61e004 + soff) & 0x80000000))
  58                        break;
  59        );
  60        nvkm_mask(device, 0x61e004 + soff, 0x80000101, 0x80000000 | ctrl);
  61        nvkm_msec(device, 2000,
  62                if (!(nvkm_rd32(device, 0x61e004 + soff) & 0x80000000))
  63                        break;
  64        );
  65        disp->pior.type[outp->or] = type;
  66        return 0;
  67}
  68
  69/******************************************************************************
  70 * TMDS
  71 *****************************************************************************/
  72static const struct nvkm_output_func
  73nv50_pior_output_func = {
  74};
  75
  76int
  77nv50_pior_output_new(struct nvkm_disp *disp, int index,
  78                     struct dcb_output *dcbE, struct nvkm_output **poutp)
  79{
  80        return nvkm_output_new_(&nv50_pior_output_func, disp,
  81                                index, dcbE, poutp);
  82}
  83
  84/******************************************************************************
  85 * DisplayPort
  86 *****************************************************************************/
  87static int
  88nv50_pior_output_dp_pattern(struct nvkm_output_dp *outp, int pattern)
  89{
  90        return 0;
  91}
  92
  93static int
  94nv50_pior_output_dp_lnk_pwr(struct nvkm_output_dp *outp, int nr)
  95{
  96        return 0;
  97}
  98
  99static int
 100nv50_pior_output_dp_lnk_ctl(struct nvkm_output_dp *outp,
 101                            int nr, int bw, bool ef)
 102{
 103        int ret = nvkm_i2c_aux_lnk_ctl(outp->aux, nr, bw, ef);
 104        if (ret)
 105                return ret;
 106        return 1;
 107}
 108
 109static const struct nvkm_output_dp_func
 110nv50_pior_output_dp_func = {
 111        .pattern = nv50_pior_output_dp_pattern,
 112        .lnk_pwr = nv50_pior_output_dp_lnk_pwr,
 113        .lnk_ctl = nv50_pior_output_dp_lnk_ctl,
 114};
 115
 116int
 117nv50_pior_dp_new(struct nvkm_disp *disp, int index, struct dcb_output *dcbE,
 118                 struct nvkm_output **poutp)
 119{
 120        struct nvkm_i2c *i2c = disp->engine.subdev.device->i2c;
 121        struct nvkm_i2c_aux *aux =
 122                nvkm_i2c_aux_find(i2c, NVKM_I2C_AUX_EXT(dcbE->extdev));
 123        struct nvkm_output_dp *outp;
 124
 125        if (!(outp = kzalloc(sizeof(*outp), GFP_KERNEL)))
 126                return -ENOMEM;
 127        *poutp = &outp->base;
 128
 129        return nvkm_output_dp_ctor(&nv50_pior_output_dp_func, disp,
 130                                   index, dcbE, aux, outp);
 131}
 132