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33c773eb62
The HDMI controllers found in the BCM2711 has a pretty different clock and registers areas than found in the older BCM283x SoCs. Let's create a variant structure to store the various adjustments we'll need later on, and a function to get the resources needed for one particular version. Signed-off-by: Maxime Ripard <maxime@cerno.tech> Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Tested-by: Hoegeun Kwon <hoegeun.kwon@samsung.com> Tested-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://patchwork.freedesktop.org/patch/msgid/71cfa3ce3d865bbab52a0e5651bc052dc4893f11.1599120059.git-series.maxime@cerno.tech
93 lines
2.2 KiB
C
93 lines
2.2 KiB
C
#ifndef _VC4_HDMI_H_
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#define _VC4_HDMI_H_
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#include <drm/drm_connector.h>
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#include <media/cec.h>
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#include <sound/dmaengine_pcm.h>
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#include <sound/soc.h>
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#include "vc4_drv.h"
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/* VC4 HDMI encoder KMS struct */
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struct vc4_hdmi_encoder {
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struct vc4_encoder base;
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bool hdmi_monitor;
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bool limited_rgb_range;
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};
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static inline struct vc4_hdmi_encoder *
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to_vc4_hdmi_encoder(struct drm_encoder *encoder)
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{
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return container_of(encoder, struct vc4_hdmi_encoder, base.base);
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}
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struct vc4_hdmi;
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struct vc4_hdmi_variant {
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/* Callback to get the resources (memory region, interrupts,
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* clocks, etc) for that variant.
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*/
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int (*init_resources)(struct vc4_hdmi *vc4_hdmi);
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};
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/* HDMI audio information */
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struct vc4_hdmi_audio {
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struct snd_soc_card card;
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struct snd_soc_dai_link link;
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struct snd_soc_dai_link_component cpu;
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struct snd_soc_dai_link_component codec;
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struct snd_soc_dai_link_component platform;
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int samplerate;
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int channels;
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struct snd_dmaengine_dai_dma_data dma_data;
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struct snd_pcm_substream *substream;
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};
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/* General HDMI hardware state. */
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struct vc4_hdmi {
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struct vc4_hdmi_audio audio;
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struct platform_device *pdev;
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const struct vc4_hdmi_variant *variant;
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struct vc4_hdmi_encoder encoder;
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struct drm_connector connector;
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struct i2c_adapter *ddc;
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void __iomem *hdmicore_regs;
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void __iomem *hd_regs;
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int hpd_gpio;
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bool hpd_active_low;
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struct cec_adapter *cec_adap;
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struct cec_msg cec_rx_msg;
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bool cec_tx_ok;
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bool cec_irq_was_rx;
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struct clk *pixel_clock;
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struct clk *hsm_clock;
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struct debugfs_regset32 hdmi_regset;
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struct debugfs_regset32 hd_regset;
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};
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static inline struct vc4_hdmi *
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connector_to_vc4_hdmi(struct drm_connector *connector)
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{
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return container_of(connector, struct vc4_hdmi, connector);
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}
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static inline struct vc4_hdmi *
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encoder_to_vc4_hdmi(struct drm_encoder *encoder)
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{
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struct vc4_hdmi_encoder *_encoder = to_vc4_hdmi_encoder(encoder);
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return container_of(_encoder, struct vc4_hdmi, encoder);
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}
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#define HDMI_READ(offset) readl(vc4_hdmi->hdmicore_regs + offset)
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#define HDMI_WRITE(offset, val) writel(val, vc4_hdmi->hdmicore_regs + offset)
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#define HD_READ(offset) readl(vc4_hdmi->hd_regs + offset)
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#define HD_WRITE(offset, val) writel(val, vc4_hdmi->hd_regs + offset)
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#endif /* _VC4_HDMI_H_ */
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