4 #include <drm/drm_connector.h>
6 #include <sound/dmaengine_pcm.h>
11 /* VC4 HDMI encoder KMS struct */
12 struct vc4_hdmi_encoder {
13 struct vc4_encoder base;
17 static inline struct vc4_hdmi_encoder *
18 to_vc4_hdmi_encoder(struct drm_encoder *encoder)
20 return container_of(encoder, struct vc4_hdmi_encoder, base.base);
24 struct vc4_hdmi_register;
25 struct vc4_hdmi_connector_state;
27 enum vc4_hdmi_phy_channel {
34 struct vc4_hdmi_variant {
35 /* Encoder Type for that controller */
36 enum vc4_encoder_type encoder_type;
39 const char *card_name;
41 /* Filename to expose the registers in debugfs */
42 const char *debugfs_name;
44 /* Maximum pixel clock supported by the controller (in Hz) */
45 unsigned long long max_pixel_clock;
47 /* List of the registers available on that variant */
48 const struct vc4_hdmi_register *registers;
50 /* Number of registers on that variant */
51 unsigned int num_registers;
54 * The variants don't map the lane in the same order in the
55 * PHY, so this is an array mapping the HDMI channel (index)
56 * to the PHY lane (value).
58 enum vc4_hdmi_phy_channel phy_lane_mapping[4];
60 /* The BCM2711 cannot deal with odd horizontal pixel timings */
61 bool unsupported_odd_h_timings;
64 * The BCM2711 CEC/hotplug IRQ controller is shared between the
65 * two HDMI controllers, and we have a proper irqchip driver for
68 bool external_irq_controller;
70 /* Callback to get the resources (memory region, interrupts,
71 * clocks, etc) for that variant.
73 int (*init_resources)(struct drm_device *drm,
74 struct vc4_hdmi *vc4_hdmi);
76 /* Callback to reset the HDMI block */
77 void (*reset)(struct vc4_hdmi *vc4_hdmi);
79 /* Callback to enable / disable the CSC */
80 void (*csc_setup)(struct vc4_hdmi *vc4_hdmi,
81 struct drm_connector_state *state,
82 const struct drm_display_mode *mode);
84 /* Callback to configure the video timings in the HDMI block */
85 void (*set_timings)(struct vc4_hdmi *vc4_hdmi,
86 struct drm_connector_state *state,
87 struct drm_display_mode *mode);
89 /* Callback to initialize the PHY according to the connector state */
90 void (*phy_init)(struct vc4_hdmi *vc4_hdmi,
91 struct vc4_hdmi_connector_state *vc4_conn_state);
93 /* Callback to disable the PHY */
94 void (*phy_disable)(struct vc4_hdmi *vc4_hdmi);
96 /* Callback to enable the RNG in the PHY */
97 void (*phy_rng_enable)(struct vc4_hdmi *vc4_hdmi);
99 /* Callback to disable the RNG in the PHY */
100 void (*phy_rng_disable)(struct vc4_hdmi *vc4_hdmi);
102 /* Callback to get channel map */
103 u32 (*channel_map)(struct vc4_hdmi *vc4_hdmi, u32 channel_mask);
105 /* Enables HDR metadata */
108 /* Callback for hardware specific hotplug detect */
109 bool (*hp_detect)(struct vc4_hdmi *vc4_hdmi);
112 /* HDMI audio information */
113 struct vc4_hdmi_audio {
114 struct snd_soc_card card;
115 struct snd_soc_dai_link link;
116 struct snd_soc_dai_link_component cpu;
117 struct snd_soc_dai_link_component codec;
118 struct snd_soc_dai_link_component platform;
119 struct snd_dmaengine_dai_dma_data dma_data;
120 struct hdmi_audio_infoframe infoframe;
121 struct platform_device *codec_pdev;
125 enum vc4_hdmi_output_format {
127 VC4_HDMI_OUTPUT_YUV422,
128 VC4_HDMI_OUTPUT_YUV444,
129 VC4_HDMI_OUTPUT_YUV420,
132 /* General HDMI hardware state. */
134 struct vc4_hdmi_audio audio;
136 struct platform_device *pdev;
137 const struct vc4_hdmi_variant *variant;
139 struct vc4_hdmi_encoder encoder;
140 struct drm_connector connector;
142 struct delayed_work scrambling_work;
144 struct drm_property *broadcast_rgb_property;
146 struct i2c_adapter *ddc;
147 void __iomem *hdmicore_regs;
148 void __iomem *hd_regs;
151 void __iomem *cec_regs;
153 void __iomem *csc_regs;
155 void __iomem *dvp_regs;
157 void __iomem *phy_regs;
159 void __iomem *ram_regs;
161 void __iomem *rm_regs;
163 struct gpio_desc *hpd_gpio;
166 * On some systems (like the RPi4), some modes are in the same
167 * frequency range than the WiFi channels (1440p@60Hz for
168 * example). Should we take evasive actions because that system
169 * has a wifi adapter?
171 bool disable_wifi_frequencies;
173 struct cec_adapter *cec_adap;
174 struct cec_msg cec_rx_msg;
178 struct clk *cec_clock;
179 struct clk *pixel_clock;
180 struct clk *hsm_clock;
181 struct clk *audio_clock;
182 struct clk *pixel_bvb_clock;
184 struct reset_control *reset;
186 struct debugfs_regset32 hdmi_regset;
187 struct debugfs_regset32 hd_regset;
190 * @hw_lock: Spinlock protecting device register access.
195 * @mutex: Mutex protecting the driver access across multiple
196 * frameworks (KMS, ALSA).
198 * NOTE: While supported, CEC has been left out since
199 * cec_s_phys_addr_from_edid() might call .adap_enable and lead to a
200 * reentrancy issue between .get_modes (or .detect) and .adap_enable.
201 * Since we don't share any state between the CEC hooks and KMS', it's
202 * not a big deal. The only trouble might come from updating the CEC
203 * clock divider which might be affected by a modeset, but CEC should
204 * be resilient to that.
209 * @saved_adjusted_mode: Copy of @drm_crtc_state.adjusted_mode
210 * for use by ALSA hooks and interrupt handlers. Protected by @mutex.
212 struct drm_display_mode saved_adjusted_mode;
215 * @output_enabled: Is the HDMI controller currently active?
216 * Protected by @mutex.
221 * @scdc_enabled: Is the HDMI controller currently running with
222 * the scrambler on? Protected by @mutex.
227 * @output_bpc: Copy of @vc4_connector_state.output_bpc for use
228 * outside of KMS hooks. Protected by @mutex.
230 unsigned int output_bpc;
233 * @output_format: Copy of @vc4_connector_state.output_format
234 * for use outside of KMS hooks. Protected by @mutex.
236 enum vc4_hdmi_output_format output_format;
239 * @broadcast_rgb: Copy of @vc4_connector_state.broadcast_rgb
240 * for use outside of KMS hooks. Protected by @mutex.
244 /* VC5 debugfs regset */
245 struct debugfs_regset32 cec_regset;
246 struct debugfs_regset32 csc_regset;
247 struct debugfs_regset32 dvp_regset;
248 struct debugfs_regset32 phy_regset;
249 struct debugfs_regset32 ram_regset;
250 struct debugfs_regset32 rm_regset;
253 static inline struct vc4_hdmi *
254 connector_to_vc4_hdmi(struct drm_connector *connector)
256 return container_of(connector, struct vc4_hdmi, connector);
259 static inline struct vc4_hdmi *
260 encoder_to_vc4_hdmi(struct drm_encoder *encoder)
262 struct vc4_hdmi_encoder *_encoder = to_vc4_hdmi_encoder(encoder);
264 return container_of(_encoder, struct vc4_hdmi, encoder);
267 struct vc4_hdmi_connector_state {
268 struct drm_connector_state base;
269 unsigned long long pixel_rate;
270 unsigned int output_bpc;
271 enum vc4_hdmi_output_format output_format;
275 static inline struct vc4_hdmi_connector_state *
276 conn_state_to_vc4_hdmi_conn_state(struct drm_connector_state *conn_state)
278 return container_of(conn_state, struct vc4_hdmi_connector_state, base);
281 static inline const struct vc4_hdmi_connector_state *
282 const_conn_state_to_vc4_hdmi_conn_state(const struct drm_connector_state *conn_state)
284 return container_of(conn_state, struct vc4_hdmi_connector_state, base);
287 void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
288 struct vc4_hdmi_connector_state *vc4_conn_state);
289 void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
290 void vc4_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi);
291 void vc4_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi);
293 void vc5_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
294 struct vc4_hdmi_connector_state *vc4_conn_state);
295 void vc5_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
296 void vc5_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi);
297 void vc5_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi);
299 #endif /* _VC4_HDMI_H_ */