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path: root/drivers/gpu/drm/meson/meson_venc_cvbs.c
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Diffstat (limited to 'drivers/gpu/drm/meson/meson_venc_cvbs.c')
-rw-r--r--drivers/gpu/drm/meson/meson_venc_cvbs.c293
1 files changed, 0 insertions, 293 deletions
diff --git a/drivers/gpu/drm/meson/meson_venc_cvbs.c b/drivers/gpu/drm/meson/meson_venc_cvbs.c
deleted file mode 100644
index f1747fde1fe0..000000000000
--- a/drivers/gpu/drm/meson/meson_venc_cvbs.c
+++ /dev/null
@@ -1,293 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2016 BayLibre, SAS
- * Author: Neil Armstrong <narmstrong@baylibre.com>
- * Copyright (C) 2015 Amlogic, Inc. All rights reserved.
- * Copyright (C) 2014 Endless Mobile
- *
- * Written by:
- * Jasper St. Pierre <jstpierre@mecheye.net>
- */
-
-#include <linux/export.h>
-#include <linux/of_graph.h>
-
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_device.h>
-#include <drm/drm_edid.h>
-#include <drm/drm_probe_helper.h>
-#include <drm/drm_print.h>
-
-#include "meson_registers.h"
-#include "meson_vclk.h"
-#include "meson_venc_cvbs.h"
-
-/* HHI VDAC Registers */
-#define HHI_VDAC_CNTL0 0x2F4 /* 0xbd offset in data sheet */
-#define HHI_VDAC_CNTL0_G12A 0x2EC /* 0xbd offset in data sheet */
-#define HHI_VDAC_CNTL1 0x2F8 /* 0xbe offset in data sheet */
-#define HHI_VDAC_CNTL1_G12A 0x2F0 /* 0xbe offset in data sheet */
-
-struct meson_venc_cvbs {
- struct drm_encoder encoder;
- struct drm_connector connector;
- struct meson_drm *priv;
-};
-#define encoder_to_meson_venc_cvbs(x) \
- container_of(x, struct meson_venc_cvbs, encoder)
-
-#define connector_to_meson_venc_cvbs(x) \
- container_of(x, struct meson_venc_cvbs, connector)
-
-/* Supported Modes */
-
-struct meson_cvbs_mode meson_cvbs_modes[MESON_CVBS_MODES_COUNT] = {
- { /* PAL */
- .enci = &meson_cvbs_enci_pal,
- .mode = {
- DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500,
- 720, 732, 795, 864, 0, 576, 580, 586, 625, 0,
- DRM_MODE_FLAG_INTERLACE),
- .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3,
- },
- },
- { /* NTSC */
- .enci = &meson_cvbs_enci_ntsc,
- .mode = {
- DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500,
- 720, 739, 801, 858, 0, 480, 488, 494, 525, 0,
- DRM_MODE_FLAG_INTERLACE),
- .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3,
- },
- },
-};
-
-static const struct meson_cvbs_mode *
-meson_cvbs_get_mode(const struct drm_display_mode *req_mode)
-{
- int i;
-
- for (i = 0; i < MESON_CVBS_MODES_COUNT; ++i) {
- struct meson_cvbs_mode *meson_mode = &meson_cvbs_modes[i];
-
- if (drm_mode_match(req_mode, &meson_mode->mode,
- DRM_MODE_MATCH_TIMINGS |
- DRM_MODE_MATCH_CLOCK |
- DRM_MODE_MATCH_FLAGS |
- DRM_MODE_MATCH_3D_FLAGS))
- return meson_mode;
- }
-
- return NULL;
-}
-
-/* Connector */
-
-static void meson_cvbs_connector_destroy(struct drm_connector *connector)
-{
- drm_connector_cleanup(connector);
-}
-
-static enum drm_connector_status
-meson_cvbs_connector_detect(struct drm_connector *connector, bool force)
-{
- /* FIXME: Add load-detect or jack-detect if possible */
- return connector_status_connected;
-}
-
-static int meson_cvbs_connector_get_modes(struct drm_connector *connector)
-{
- struct drm_device *dev = connector->dev;
- struct drm_display_mode *mode;
- int i;
-
- for (i = 0; i < MESON_CVBS_MODES_COUNT; ++i) {
- struct meson_cvbs_mode *meson_mode = &meson_cvbs_modes[i];
-
- mode = drm_mode_duplicate(dev, &meson_mode->mode);
- if (!mode) {
- DRM_ERROR("Failed to create a new display mode\n");
- return 0;
- }
-
- drm_mode_probed_add(connector, mode);
- }
-
- return i;
-}
-
-static int meson_cvbs_connector_mode_valid(struct drm_connector *connector,
- struct drm_display_mode *mode)
-{
- /* Validate the modes added in get_modes */
- return MODE_OK;
-}
-
-static const struct drm_connector_funcs meson_cvbs_connector_funcs = {
- .detect = meson_cvbs_connector_detect,
- .fill_modes = drm_helper_probe_single_connector_modes,
- .destroy = meson_cvbs_connector_destroy,
- .reset = drm_atomic_helper_connector_reset,
- .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
- .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
-};
-
-static const
-struct drm_connector_helper_funcs meson_cvbs_connector_helper_funcs = {
- .get_modes = meson_cvbs_connector_get_modes,
- .mode_valid = meson_cvbs_connector_mode_valid,
-};
-
-/* Encoder */
-
-static void meson_venc_cvbs_encoder_destroy(struct drm_encoder *encoder)
-{
- drm_encoder_cleanup(encoder);
-}
-
-static const struct drm_encoder_funcs meson_venc_cvbs_encoder_funcs = {
- .destroy = meson_venc_cvbs_encoder_destroy,
-};
-
-static int meson_venc_cvbs_encoder_atomic_check(struct drm_encoder *encoder,
- struct drm_crtc_state *crtc_state,
- struct drm_connector_state *conn_state)
-{
- if (meson_cvbs_get_mode(&crtc_state->mode))
- return 0;
-
- return -EINVAL;
-}
-
-static void meson_venc_cvbs_encoder_disable(struct drm_encoder *encoder)
-{
- struct meson_venc_cvbs *meson_venc_cvbs =
- encoder_to_meson_venc_cvbs(encoder);
- struct meson_drm *priv = meson_venc_cvbs->priv;
-
- /* Disable CVBS VDAC */
- if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
- regmap_write(priv->hhi, HHI_VDAC_CNTL0_G12A, 0);
- regmap_write(priv->hhi, HHI_VDAC_CNTL1_G12A, 0);
- } else {
- regmap_write(priv->hhi, HHI_VDAC_CNTL0, 0);
- regmap_write(priv->hhi, HHI_VDAC_CNTL1, 8);
- }
-}
-
-static void meson_venc_cvbs_encoder_enable(struct drm_encoder *encoder)
-{
- struct meson_venc_cvbs *meson_venc_cvbs =
- encoder_to_meson_venc_cvbs(encoder);
- struct meson_drm *priv = meson_venc_cvbs->priv;
-
- /* VDAC0 source is not from ATV */
- writel_bits_relaxed(VENC_VDAC_SEL_ATV_DMD, 0,
- priv->io_base + _REG(VENC_VDAC_DACSEL0));
-
- if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB)) {
- regmap_write(priv->hhi, HHI_VDAC_CNTL0, 1);
- regmap_write(priv->hhi, HHI_VDAC_CNTL1, 0);
- } else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
- meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL)) {
- regmap_write(priv->hhi, HHI_VDAC_CNTL0, 0xf0001);
- regmap_write(priv->hhi, HHI_VDAC_CNTL1, 0);
- } else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
- regmap_write(priv->hhi, HHI_VDAC_CNTL0_G12A, 0x906001);
- regmap_write(priv->hhi, HHI_VDAC_CNTL1_G12A, 0);
- }
-}
-
-static void meson_venc_cvbs_encoder_mode_set(struct drm_encoder *encoder,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
-{
- const struct meson_cvbs_mode *meson_mode = meson_cvbs_get_mode(mode);
- struct meson_venc_cvbs *meson_venc_cvbs =
- encoder_to_meson_venc_cvbs(encoder);
- struct meson_drm *priv = meson_venc_cvbs->priv;
-
- if (meson_mode) {
- meson_venci_cvbs_mode_set(priv, meson_mode->enci);
-
- /* Setup 27MHz vclk2 for ENCI and VDAC */
- meson_vclk_setup(priv, MESON_VCLK_TARGET_CVBS,
- MESON_VCLK_CVBS, MESON_VCLK_CVBS,
- MESON_VCLK_CVBS, MESON_VCLK_CVBS,
- true);
- }
-}
-
-static const struct drm_encoder_helper_funcs
- meson_venc_cvbs_encoder_helper_funcs = {
- .atomic_check = meson_venc_cvbs_encoder_atomic_check,
- .disable = meson_venc_cvbs_encoder_disable,
- .enable = meson_venc_cvbs_encoder_enable,
- .mode_set = meson_venc_cvbs_encoder_mode_set,
-};
-
-static bool meson_venc_cvbs_connector_is_available(struct meson_drm *priv)
-{
- struct device_node *remote;
-
- remote = of_graph_get_remote_node(priv->dev->of_node, 0, 0);
- if (!remote)
- return false;
-
- of_node_put(remote);
- return true;
-}
-
-int meson_venc_cvbs_create(struct meson_drm *priv)
-{
- struct drm_device *drm = priv->drm;
- struct meson_venc_cvbs *meson_venc_cvbs;
- struct drm_connector *connector;
- struct drm_encoder *encoder;
- int ret;
-
- if (!meson_venc_cvbs_connector_is_available(priv)) {
- dev_info(drm->dev, "CVBS Output connector not available\n");
- return 0;
- }
-
- meson_venc_cvbs = devm_kzalloc(priv->dev, sizeof(*meson_venc_cvbs),
- GFP_KERNEL);
- if (!meson_venc_cvbs)
- return -ENOMEM;
-
- meson_venc_cvbs->priv = priv;
- encoder = &meson_venc_cvbs->encoder;
- connector = &meson_venc_cvbs->connector;
-
- /* Connector */
-
- drm_connector_helper_add(connector,
- &meson_cvbs_connector_helper_funcs);
-
- ret = drm_connector_init(drm, connector, &meson_cvbs_connector_funcs,
- DRM_MODE_CONNECTOR_Composite);
- if (ret) {
- dev_err(priv->dev, "Failed to init CVBS connector\n");
- return ret;
- }
-
- connector->interlace_allowed = 1;
-
- /* Encoder */
-
- drm_encoder_helper_add(encoder, &meson_venc_cvbs_encoder_helper_funcs);
-
- ret = drm_encoder_init(drm, encoder, &meson_venc_cvbs_encoder_funcs,
- DRM_MODE_ENCODER_TVDAC, "meson_venc_cvbs");
- if (ret) {
- dev_err(priv->dev, "Failed to init CVBS encoder\n");
- return ret;
- }
-
- encoder->possible_crtcs = BIT(0);
-
- drm_connector_attach_encoder(connector, encoder);
-
- return 0;
-}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.