4 #include <drm/drm_connector.h>
6 #include <sound/dmaengine_pcm.h>
12 struct vc4_hdmi_register;
13 struct vc4_hdmi_connector_state;
15 enum vc4_hdmi_phy_channel {
22 struct vc4_hdmi_variant {
23 /* Encoder Type for that controller */
24 enum vc4_encoder_type encoder_type;
27 const char *card_name;
29 /* Filename to expose the registers in debugfs */
30 const char *debugfs_name;
32 /* Maximum pixel clock supported by the controller (in Hz) */
33 unsigned long long max_pixel_clock;
35 /* List of the registers available on that variant */
36 const struct vc4_hdmi_register *registers;
38 /* Number of registers on that variant */
39 unsigned int num_registers;
42 * The variants don't map the lane in the same order in the
43 * PHY, so this is an array mapping the HDMI channel (index)
44 * to the PHY lane (value).
46 enum vc4_hdmi_phy_channel phy_lane_mapping[4];
48 /* The BCM2711 cannot deal with odd horizontal pixel timings */
49 bool unsupported_odd_h_timings;
52 * The BCM2711 CEC/hotplug IRQ controller is shared between the
53 * two HDMI controllers, and we have a proper irqchip driver for
56 bool external_irq_controller;
58 /* Callback to get the resources (memory region, interrupts,
59 * clocks, etc) for that variant.
61 int (*init_resources)(struct vc4_hdmi *vc4_hdmi);
63 /* Callback to reset the HDMI block */
64 void (*reset)(struct vc4_hdmi *vc4_hdmi);
66 /* Callback to enable / disable the CSC */
67 void (*csc_setup)(struct vc4_hdmi *vc4_hdmi,
68 struct drm_connector_state *state,
69 const struct drm_display_mode *mode);
71 /* Callback to configure the video timings in the HDMI block */
72 void (*set_timings)(struct vc4_hdmi *vc4_hdmi,
73 struct drm_connector_state *state,
74 struct drm_display_mode *mode);
76 /* Callback to initialize the PHY according to the connector state */
77 void (*phy_init)(struct vc4_hdmi *vc4_hdmi,
78 struct vc4_hdmi_connector_state *vc4_conn_state);
80 /* Callback to disable the PHY */
81 void (*phy_disable)(struct vc4_hdmi *vc4_hdmi);
83 /* Callback to enable the RNG in the PHY */
84 void (*phy_rng_enable)(struct vc4_hdmi *vc4_hdmi);
86 /* Callback to disable the RNG in the PHY */
87 void (*phy_rng_disable)(struct vc4_hdmi *vc4_hdmi);
89 /* Callback to get channel map */
90 u32 (*channel_map)(struct vc4_hdmi *vc4_hdmi, u32 channel_mask);
92 /* Enables HDR metadata */
95 /* Callback for hardware specific hotplug detect */
96 bool (*hp_detect)(struct vc4_hdmi *vc4_hdmi);
99 /* HDMI audio information */
100 struct vc4_hdmi_audio {
101 struct snd_soc_card card;
102 struct snd_soc_dai_link link;
103 struct snd_soc_dai_link_component cpu;
104 struct snd_soc_dai_link_component codec;
105 struct snd_soc_dai_link_component platform;
106 struct snd_dmaengine_dai_dma_data dma_data;
107 struct hdmi_audio_infoframe infoframe;
108 struct platform_device *codec_pdev;
112 enum vc4_hdmi_output_format {
114 VC4_HDMI_OUTPUT_YUV422,
115 VC4_HDMI_OUTPUT_YUV444,
116 VC4_HDMI_OUTPUT_YUV420,
119 /* General HDMI hardware state. */
121 struct vc4_hdmi_audio audio;
123 struct platform_device *pdev;
124 const struct vc4_hdmi_variant *variant;
126 struct vc4_encoder encoder;
127 struct drm_connector connector;
129 struct delayed_work scrambling_work;
131 struct i2c_adapter *ddc;
132 void __iomem *hdmicore_regs;
133 void __iomem *hd_regs;
136 void __iomem *cec_regs;
138 void __iomem *csc_regs;
140 void __iomem *dvp_regs;
142 void __iomem *phy_regs;
144 void __iomem *ram_regs;
146 void __iomem *rm_regs;
148 struct gpio_desc *hpd_gpio;
151 * On some systems (like the RPi4), some modes are in the same
152 * frequency range than the WiFi channels (1440p@60Hz for
153 * example). Should we take evasive actions because that system
154 * has a wifi adapter?
156 bool disable_wifi_frequencies;
159 * Even if HDMI0 on the RPi4 can output modes requiring a pixel
160 * rate higher than 297MHz, it needs some adjustments in the
161 * config.txt file to be able to do so and thus won't always be
166 struct cec_adapter *cec_adap;
167 struct cec_msg cec_rx_msg;
171 struct clk *cec_clock;
172 struct clk *pixel_clock;
173 struct clk *hsm_clock;
174 struct clk *audio_clock;
175 struct clk *pixel_bvb_clock;
177 struct reset_control *reset;
179 struct debugfs_regset32 hdmi_regset;
180 struct debugfs_regset32 hd_regset;
183 struct debugfs_regset32 cec_regset;
184 struct debugfs_regset32 csc_regset;
185 struct debugfs_regset32 dvp_regset;
186 struct debugfs_regset32 phy_regset;
187 struct debugfs_regset32 ram_regset;
188 struct debugfs_regset32 rm_regset;
191 * @hw_lock: Spinlock protecting device register access.
196 * @mutex: Mutex protecting the driver access across multiple
197 * frameworks (KMS, ALSA).
199 * NOTE: While supported, CEC has been left out since
200 * cec_s_phys_addr_from_edid() might call .adap_enable and lead to a
201 * reentrancy issue between .get_modes (or .detect) and .adap_enable.
202 * Since we don't share any state between the CEC hooks and KMS', it's
203 * not a big deal. The only trouble might come from updating the CEC
204 * clock divider which might be affected by a modeset, but CEC should
205 * be resilient to that.
210 * @saved_adjusted_mode: Copy of @drm_crtc_state.adjusted_mode
211 * for use by ALSA hooks and interrupt handlers. Protected by @mutex.
213 struct drm_display_mode saved_adjusted_mode;
216 * @packet_ram_enabled: Is the HDMI controller packet RAM currently
217 * on? Protected by @mutex.
219 bool packet_ram_enabled;
222 * @scdc_enabled: Is the HDMI controller currently running with
223 * the scrambler on? Protected by @mutex.
228 * @output_bpc: Copy of @vc4_connector_state.output_bpc for use
229 * outside of KMS hooks. Protected by @mutex.
231 unsigned int output_bpc;
234 * @output_format: Copy of @vc4_connector_state.output_format
235 * for use outside of KMS hooks. Protected by @mutex.
237 enum vc4_hdmi_output_format output_format;
240 static inline struct vc4_hdmi *
241 connector_to_vc4_hdmi(struct drm_connector *connector)
243 return container_of(connector, struct vc4_hdmi, connector);
246 static inline struct vc4_hdmi *
247 encoder_to_vc4_hdmi(struct drm_encoder *encoder)
249 struct vc4_encoder *_encoder = to_vc4_encoder(encoder);
250 return container_of(_encoder, struct vc4_hdmi, encoder);
253 struct vc4_hdmi_connector_state {
254 struct drm_connector_state base;
255 unsigned long long tmds_char_rate;
256 unsigned int output_bpc;
257 enum vc4_hdmi_output_format output_format;
260 static inline struct vc4_hdmi_connector_state *
261 conn_state_to_vc4_hdmi_conn_state(struct drm_connector_state *conn_state)
263 return container_of(conn_state, struct vc4_hdmi_connector_state, base);
266 void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
267 struct vc4_hdmi_connector_state *vc4_conn_state);
268 void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
269 void vc4_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi);
270 void vc4_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi);
272 void vc5_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
273 struct vc4_hdmi_connector_state *vc4_conn_state);
274 void vc5_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
275 void vc5_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi);
276 void vc5_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi);
278 #endif /* _VC4_HDMI_H_ */