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;
15 bool limited_rgb_range;
18 static inline struct vc4_hdmi_encoder *
19 to_vc4_hdmi_encoder(struct drm_encoder *encoder)
21 return container_of(encoder, struct vc4_hdmi_encoder, base.base);
25 struct vc4_hdmi_register;
26 struct vc4_hdmi_connector_state;
28 enum vc4_hdmi_phy_channel {
35 struct vc4_hdmi_variant {
36 /* Encoder Type for that controller */
37 enum vc4_encoder_type encoder_type;
40 const char *card_name;
42 /* Filename to expose the registers in debugfs */
43 const char *debugfs_name;
45 /* Maximum pixel clock supported by the controller (in Hz) */
46 unsigned long long max_pixel_clock;
48 /* List of the registers available on that variant */
49 const struct vc4_hdmi_register *registers;
51 /* Number of registers on that variant */
52 unsigned int num_registers;
55 * The variants don't map the lane in the same order in the
56 * PHY, so this is an array mapping the HDMI channel (index)
57 * to the PHY lane (value).
59 enum vc4_hdmi_phy_channel phy_lane_mapping[4];
61 /* The BCM2711 cannot deal with odd horizontal pixel timings */
62 bool unsupported_odd_h_timings;
65 * The BCM2711 CEC/hotplug IRQ controller is shared between the
66 * two HDMI controllers, and we have a proper irqchip driver for
69 bool external_irq_controller;
71 /* Callback to get the resources (memory region, interrupts,
72 * clocks, etc) for that variant.
74 int (*init_resources)(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, bool enable);
82 /* Callback to configure the video timings in the HDMI block */
83 void (*set_timings)(struct vc4_hdmi *vc4_hdmi,
84 struct drm_connector_state *state,
85 struct drm_display_mode *mode);
87 /* Callback to initialize the PHY according to the connector state */
88 void (*phy_init)(struct vc4_hdmi *vc4_hdmi,
89 struct vc4_hdmi_connector_state *vc4_conn_state);
91 /* Callback to disable the PHY */
92 void (*phy_disable)(struct vc4_hdmi *vc4_hdmi);
94 /* Callback to enable the RNG in the PHY */
95 void (*phy_rng_enable)(struct vc4_hdmi *vc4_hdmi);
97 /* Callback to disable the RNG in the PHY */
98 void (*phy_rng_disable)(struct vc4_hdmi *vc4_hdmi);
100 /* Callback to get channel map */
101 u32 (*channel_map)(struct vc4_hdmi *vc4_hdmi, u32 channel_mask);
103 /* Enables HDR metadata */
106 /* Callback for hardware specific hotplug detect */
107 bool (*hp_detect)(struct vc4_hdmi *vc4_hdmi);
110 /* HDMI audio information */
111 struct vc4_hdmi_audio {
112 struct snd_soc_card card;
113 struct snd_soc_dai_link link;
114 struct snd_soc_dai_link_component cpu;
115 struct snd_soc_dai_link_component codec;
116 struct snd_soc_dai_link_component platform;
117 struct snd_dmaengine_dai_dma_data dma_data;
118 struct hdmi_audio_infoframe infoframe;
122 /* General HDMI hardware state. */
124 struct vc4_hdmi_audio audio;
126 struct platform_device *pdev;
127 const struct vc4_hdmi_variant *variant;
129 struct vc4_hdmi_encoder encoder;
130 struct drm_connector connector;
132 struct delayed_work scrambling_work;
134 struct i2c_adapter *ddc;
135 void __iomem *hdmicore_regs;
136 void __iomem *hd_regs;
139 void __iomem *cec_regs;
141 void __iomem *csc_regs;
143 void __iomem *dvp_regs;
145 void __iomem *phy_regs;
147 void __iomem *ram_regs;
149 void __iomem *rm_regs;
151 struct gpio_desc *hpd_gpio;
154 * On some systems (like the RPi4), some modes are in the same
155 * frequency range than the WiFi channels (1440p@60Hz for
156 * example). Should we take evasive actions because that system
157 * has a wifi adapter?
159 bool disable_wifi_frequencies;
162 * Even if HDMI0 on the RPi4 can output modes requiring a pixel
163 * rate higher than 297MHz, it needs some adjustments in the
164 * config.txt file to be able to do so and thus won't always be
169 struct cec_adapter *cec_adap;
170 struct cec_msg cec_rx_msg;
174 struct clk *cec_clock;
175 struct clk *pixel_clock;
176 struct clk *hsm_clock;
177 struct clk *audio_clock;
178 struct clk *pixel_bvb_clock;
180 struct reset_control *reset;
182 struct debugfs_regset32 hdmi_regset;
183 struct debugfs_regset32 hd_regset;
186 * @hw_lock: Spinlock protecting device register access.
191 * @mutex: Mutex protecting the driver access across multiple
192 * frameworks (KMS, ALSA).
194 * NOTE: While supported, CEC has been left out since
195 * cec_s_phys_addr_from_edid() might call .adap_enable and lead to a
196 * reentrancy issue between .get_modes (or .detect) and .adap_enable.
197 * Since we don't share any state between the CEC hooks and KMS', it's
198 * not a big deal. The only trouble might come from updating the CEC
199 * clock divider which might be affected by a modeset, but CEC should
200 * be resilient to that.
205 * @saved_adjusted_mode: Copy of @drm_crtc_state.adjusted_mode
206 * for use by ALSA hooks and interrupt handlers. Protected by @mutex.
208 struct drm_display_mode saved_adjusted_mode;
211 * @output_enabled: Is the HDMI controller currently active?
212 * Protected by @mutex.
217 * @scdc_enabled: Is the HDMI controller currently running with
218 * the scrambler on? Protected by @mutex.
223 static inline struct vc4_hdmi *
224 connector_to_vc4_hdmi(struct drm_connector *connector)
226 return container_of(connector, struct vc4_hdmi, connector);
229 static inline struct vc4_hdmi *
230 encoder_to_vc4_hdmi(struct drm_encoder *encoder)
232 struct vc4_hdmi_encoder *_encoder = to_vc4_hdmi_encoder(encoder);
234 return container_of(_encoder, struct vc4_hdmi, encoder);
237 struct vc4_hdmi_connector_state {
238 struct drm_connector_state base;
239 unsigned long long pixel_rate;
242 static inline struct vc4_hdmi_connector_state *
243 conn_state_to_vc4_hdmi_conn_state(struct drm_connector_state *conn_state)
245 return container_of(conn_state, struct vc4_hdmi_connector_state, base);
248 void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
249 struct vc4_hdmi_connector_state *vc4_conn_state);
250 void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
251 void vc4_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi);
252 void vc4_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi);
254 void vc5_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
255 struct vc4_hdmi_connector_state *vc4_conn_state);
256 void vc5_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi);
257 void vc5_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi);
258 void vc5_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi);
260 #endif /* _VC4_HDMI_H_ */