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path: root/drivers/gpu/drm/nouveau/nouveau_hdmi.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_hdmi.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_hdmi.c261
1 files changed, 0 insertions, 261 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_hdmi.c b/drivers/gpu/drm/nouveau/nouveau_hdmi.c
deleted file mode 100644
index 2c672cebc889..000000000000
--- a/drivers/gpu/drm/nouveau/nouveau_hdmi.c
+++ /dev/null
@@ -1,261 +0,0 @@
-/*
- * 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 <drm/drmP.h>
-#include "nouveau_drm.h"
-#include "nouveau_connector.h"
-#include "nouveau_encoder.h"
-#include "nouveau_crtc.h"
-
-static bool
-hdmi_sor(struct drm_encoder *encoder)
-{
- struct nouveau_drm *drm = nouveau_drm(encoder->dev);
- if (nv_device(drm->device)->chipset < 0xa3 ||
- nv_device(drm->device)->chipset == 0xaa ||
- nv_device(drm->device)->chipset == 0xac)
- return false;
- return true;
-}
-
-static inline u32
-hdmi_base(struct drm_encoder *encoder)
-{
- struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
- struct nouveau_crtc *nv_crtc = nouveau_crtc(nv_encoder->crtc);
- if (!hdmi_sor(encoder))
- return 0x616500 + (nv_crtc->index * 0x800);
- return 0x61c500 + (nv_encoder->or * 0x800);
-}
-
-static void
-hdmi_wr32(struct drm_encoder *encoder, u32 reg, u32 val)
-{
- struct nouveau_device *device = nouveau_dev(encoder->dev);
- nv_wr32(device, hdmi_base(encoder) + reg, val);
-}
-
-static u32
-hdmi_rd32(struct drm_encoder *encoder, u32 reg)
-{
- struct nouveau_device *device = nouveau_dev(encoder->dev);
- return nv_rd32(device, hdmi_base(encoder) + reg);
-}
-
-static u32
-hdmi_mask(struct drm_encoder *encoder, u32 reg, u32 mask, u32 val)
-{
- u32 tmp = hdmi_rd32(encoder, reg);
- hdmi_wr32(encoder, reg, (tmp & ~mask) | val);
- return tmp;
-}
-
-static void
-nouveau_audio_disconnect(struct drm_encoder *encoder)
-{
- struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
- struct nouveau_device *device = nouveau_dev(encoder->dev);
- u32 or = nv_encoder->or * 0x800;
-
- if (hdmi_sor(encoder))
- nv_mask(device, 0x61c448 + or, 0x00000003, 0x00000000);
-}
-
-static void
-nouveau_audio_mode_set(struct drm_encoder *encoder,
- struct drm_display_mode *mode)
-{
- struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
- struct nouveau_device *device = nouveau_dev(encoder->dev);
- struct nouveau_connector *nv_connector;
- u32 or = nv_encoder->or * 0x800;
- int i;
-
- nv_connector = nouveau_encoder_connector_get(nv_encoder);
- if (!drm_detect_monitor_audio(nv_connector->edid)) {
- nouveau_audio_disconnect(encoder);
- return;
- }
-
- if (hdmi_sor(encoder)) {
- nv_mask(device, 0x61c448 + or, 0x00000001, 0x00000001);
-
- drm_edid_to_eld(&nv_connector->base, nv_connector->edid);
- if (nv_connector->base.eld[0]) {
- u8 *eld = nv_connector->base.eld;
- for (i = 0; i < eld[2] * 4; i++)
- nv_wr32(device, 0x61c440 + or, (i << 8) | eld[i]);
- for (i = eld[2] * 4; i < 0x60; i++)
- nv_wr32(device, 0x61c440 + or, (i << 8) | 0x00);
- nv_mask(device, 0x61c448 + or, 0x00000002, 0x00000002);
- }
- }
-}
-
-static void
-nouveau_hdmi_infoframe(struct drm_encoder *encoder, u32 ctrl, u8 *frame)
-{
- /* calculate checksum for the infoframe */
- u8 sum = 0, i;
- for (i = 0; i < frame[2]; i++)
- sum += frame[i];
- frame[3] = 256 - sum;
-
- /* disable infoframe, and write header */
- hdmi_mask(encoder, ctrl + 0x00, 0x00000001, 0x00000000);
- hdmi_wr32(encoder, ctrl + 0x08, *(u32 *)frame & 0xffffff);
-
- /* register scans tell me the audio infoframe has only one set of
- * subpack regs, according to tegra (gee nvidia, it'd be nice if we
- * could get those docs too!), the hdmi block pads out the rest of
- * the packet on its own.
- */
- if (ctrl == 0x020)
- frame[2] = 6;
-
- /* write out checksum and data, weird weird 7 byte register pairs */
- for (i = 0; i < frame[2] + 1; i += 7) {
- u32 rsubpack = ctrl + 0x0c + ((i / 7) * 8);
- u32 *subpack = (u32 *)&frame[3 + i];
- hdmi_wr32(encoder, rsubpack + 0, subpack[0]);
- hdmi_wr32(encoder, rsubpack + 4, subpack[1] & 0xffffff);
- }
-
- /* enable the infoframe */
- hdmi_mask(encoder, ctrl, 0x00000001, 0x00000001);
-}
-
-static void
-nouveau_hdmi_video_infoframe(struct drm_encoder *encoder,
- struct drm_display_mode *mode)
-{
- const u8 Y = 0, A = 0, B = 0, S = 0, C = 0, M = 0, R = 0;
- const u8 ITC = 0, EC = 0, Q = 0, SC = 0, VIC = 0, PR = 0;
- const u8 bar_top = 0, bar_bottom = 0, bar_left = 0, bar_right = 0;
- u8 frame[20];
-
- frame[0x00] = 0x82; /* AVI infoframe */
- frame[0x01] = 0x02; /* version */
- frame[0x02] = 0x0d; /* length */
- frame[0x03] = 0x00;
- frame[0x04] = (Y << 5) | (A << 4) | (B << 2) | S;
- frame[0x05] = (C << 6) | (M << 4) | R;
- frame[0x06] = (ITC << 7) | (EC << 4) | (Q << 2) | SC;
- frame[0x07] = VIC;
- frame[0x08] = PR;
- frame[0x09] = bar_top & 0xff;
- frame[0x0a] = bar_top >> 8;
- frame[0x0b] = bar_bottom & 0xff;
- frame[0x0c] = bar_bottom >> 8;
- frame[0x0d] = bar_left & 0xff;
- frame[0x0e] = bar_left >> 8;
- frame[0x0f] = bar_right & 0xff;
- frame[0x10] = bar_right >> 8;
- frame[0x11] = 0x00;
- frame[0x12] = 0x00;
- frame[0x13] = 0x00;
-
- nouveau_hdmi_infoframe(encoder, 0x020, frame);
-}
-
-static void
-nouveau_hdmi_audio_infoframe(struct drm_encoder *encoder,
- struct drm_display_mode *mode)
-{
- const u8 CT = 0x00, CC = 0x01, ceaSS = 0x00, SF = 0x00, FMT = 0x00;
- const u8 CA = 0x00, DM_INH = 0, LSV = 0x00;
- u8 frame[12];
-
- frame[0x00] = 0x84; /* Audio infoframe */
- frame[0x01] = 0x01; /* version */
- frame[0x02] = 0x0a; /* length */
- frame[0x03] = 0x00;
- frame[0x04] = (CT << 4) | CC;
- frame[0x05] = (SF << 2) | ceaSS;
- frame[0x06] = FMT;
- frame[0x07] = CA;
- frame[0x08] = (DM_INH << 7) | (LSV << 3);
- frame[0x09] = 0x00;
- frame[0x0a] = 0x00;
- frame[0x0b] = 0x00;
-
- nouveau_hdmi_infoframe(encoder, 0x000, frame);
-}
-
-static void
-nouveau_hdmi_disconnect(struct drm_encoder *encoder)
-{
- nouveau_audio_disconnect(encoder);
-
- /* disable audio and avi infoframes */
- hdmi_mask(encoder, 0x000, 0x00000001, 0x00000000);
- hdmi_mask(encoder, 0x020, 0x00000001, 0x00000000);
-
- /* disable hdmi */
- hdmi_mask(encoder, 0x0a4, 0x40000000, 0x00000000);
-}
-
-void
-nouveau_hdmi_mode_set(struct drm_encoder *encoder,
- struct drm_display_mode *mode)
-{
- struct nouveau_device *device = nouveau_dev(encoder->dev);
- struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
- struct nouveau_connector *nv_connector;
- u32 max_ac_packet, rekey;
-
- nv_connector = nouveau_encoder_connector_get(nv_encoder);
- if (!mode || !nv_connector || !nv_connector->edid ||
- !drm_detect_hdmi_monitor(nv_connector->edid)) {
- nouveau_hdmi_disconnect(encoder);
- return;
- }
-
- nouveau_hdmi_video_infoframe(encoder, mode);
- nouveau_hdmi_audio_infoframe(encoder, mode);
-
- hdmi_mask(encoder, 0x0d0, 0x00070001, 0x00010001); /* SPARE, HW_CTS */
- hdmi_mask(encoder, 0x068, 0x00010101, 0x00000000); /* ACR_CTRL, ?? */
- hdmi_mask(encoder, 0x078, 0x80000000, 0x80000000); /* ACR_0441_ENABLE */
-
- nv_mask(device, 0x61733c, 0x00100000, 0x00100000); /* RESETF */
- nv_mask(device, 0x61733c, 0x10000000, 0x10000000); /* LOOKUP_EN */
- nv_mask(device, 0x61733c, 0x00100000, 0x00000000); /* !RESETF */
-
- /* value matches nvidia binary driver, and tegra constant */
- rekey = 56;
-
- max_ac_packet = mode->htotal - mode->hdisplay;
- max_ac_packet -= rekey;
- max_ac_packet -= 18; /* constant from tegra */
- max_ac_packet /= 32;
-
- /* enable hdmi */
- hdmi_mask(encoder, 0x0a4, 0x5f1f003f, 0x40000000 | /* enable */
- 0x1f000000 | /* unknown */
- max_ac_packet << 16 |
- rekey);
-
- nouveau_audio_mode_set(encoder, mode);
-}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.