1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 | /* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) STMicroelectronics SA 2014 * Author: Vincent Abriou <vincent.abriou@st.com> for STMicroelectronics. */ #ifndef _STI_HDMI_H_ #define _STI_HDMI_H_ #include <linux/hdmi.h> #include <linux/platform_device.h> #include <media/cec-notifier.h> #include <drm/drm_modes.h> #include <drm/drm_property.h> #define HDMI_STA 0x0010 #define HDMI_STA_DLL_LCK BIT(5) #define HDMI_STA_HOT_PLUG BIT(4) struct sti_hdmi; struct hdmi_phy_ops { bool (*start)(struct sti_hdmi *hdmi); void (*stop)(struct sti_hdmi *hdmi); }; struct hdmi_audio_params { bool enabled; unsigned int sample_width; unsigned int sample_rate; struct hdmi_audio_infoframe cea; }; static const struct drm_prop_enum_list colorspace_mode_names[] = { { HDMI_COLORSPACE_RGB, "rgb" }, { HDMI_COLORSPACE_YUV422, "yuv422" }, { HDMI_COLORSPACE_YUV444, "yuv444" }, }; #define DEFAULT_COLORSPACE_MODE HDMI_COLORSPACE_RGB /** * STI hdmi structure * * @dev: driver device * @drm_dev: pointer to drm device * @mode: current display mode selected * @regs: hdmi register * @syscfg: syscfg register for pll rejection configuration * @clk_pix: hdmi pixel clock * @clk_tmds: hdmi tmds clock * @clk_phy: hdmi phy clock * @clk_audio: hdmi audio clock * @irq: hdmi interrupt number * @irq_status: interrupt status register * @phy_ops: phy start/stop operations * @enabled: true if hdmi is enabled else false * @hpd: hot plug detect status * @wait_event: wait event * @event_received: wait event status * @reset: reset control of the hdmi phy * @ddc_adapt: i2c ddc adapter * @colorspace: current colorspace selected * @hdmi_monitor: true if HDMI monitor detected else DVI monitor assumed * @audio_pdev: ASoC hdmi-codec platform device * @audio: hdmi audio parameters. * @drm_connector: hdmi connector * @notifier: hotplug detect notifier */ struct sti_hdmi { struct device dev; struct drm_device *drm_dev; struct drm_display_mode mode; void __iomem *regs; void __iomem *syscfg; struct clk *clk_pix; struct clk *clk_tmds; struct clk *clk_phy; struct clk *clk_audio; int irq; u32 irq_status; struct hdmi_phy_ops *phy_ops; bool enabled; bool hpd; wait_queue_head_t wait_event; bool event_received; struct reset_control *reset; struct i2c_adapter *ddc_adapt; enum hdmi_colorspace colorspace; bool hdmi_monitor; struct platform_device *audio_pdev; struct hdmi_audio_params audio; struct drm_connector *drm_connector; struct cec_notifier *notifier; }; u32 hdmi_read(struct sti_hdmi *hdmi, int offset); void hdmi_write(struct sti_hdmi *hdmi, u32 val, int offset); /** * hdmi phy config structure * * A pointer to an array of these structures is passed to a TMDS (HDMI) output * via the control interface to provide board and SoC specific * configurations of the HDMI PHY. Each entry in the array specifies a hardware * specific configuration for a given TMDS clock frequency range. * * @min_tmds_freq: Lower bound of TMDS clock frequency this entry applies to * @max_tmds_freq: Upper bound of TMDS clock frequency this entry applies to * @config: SoC specific register configuration */ struct hdmi_phy_config { u32 min_tmds_freq; u32 max_tmds_freq; u32 config[4]; }; #endif |