// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) STMicroelectronics SA 2014 * Author: Vincent Abriou <[email protected]> for STMicroelectronics. */ #include <linux/clk.h> #include <linux/component.h> #include <linux/debugfs.h> #include <linux/hdmi.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/io.h> #include <linux/platform_device.h> #include <linux/reset.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_bridge.h> #include <drm/drm_debugfs.h> #include <drm/drm_drv.h> #include <drm/drm_edid.h> #include <drm/drm_file.h> #include <drm/drm_print.h> #include <drm/drm_probe_helper.h> #include <sound/hdmi-codec.h> #include "sti_hdmi.h" #include "sti_hdmi_tx3g4c28phy.h" #include "sti_vtg.h" #define HDMI_CFG … #define HDMI_INT_EN … #define HDMI_INT_STA … #define HDMI_INT_CLR … #define HDMI_STA … #define HDMI_ACTIVE_VID_XMIN … #define HDMI_ACTIVE_VID_XMAX … #define HDMI_ACTIVE_VID_YMIN … #define HDMI_ACTIVE_VID_YMAX … #define HDMI_DFLT_CHL0_DAT … #define HDMI_DFLT_CHL1_DAT … #define HDMI_DFLT_CHL2_DAT … #define HDMI_AUDIO_CFG … #define HDMI_SPDIF_FIFO_STATUS … #define HDMI_SW_DI_1_HEAD_WORD … #define HDMI_SW_DI_1_PKT_WORD0 … #define HDMI_SW_DI_1_PKT_WORD1 … #define HDMI_SW_DI_1_PKT_WORD2 … #define HDMI_SW_DI_1_PKT_WORD3 … #define HDMI_SW_DI_1_PKT_WORD4 … #define HDMI_SW_DI_1_PKT_WORD5 … #define HDMI_SW_DI_1_PKT_WORD6 … #define HDMI_SW_DI_CFG … #define HDMI_SAMPLE_FLAT_MASK … #define HDMI_AUDN … #define HDMI_AUD_CTS … #define HDMI_SW_DI_2_HEAD_WORD … #define HDMI_SW_DI_2_PKT_WORD0 … #define HDMI_SW_DI_2_PKT_WORD1 … #define HDMI_SW_DI_2_PKT_WORD2 … #define HDMI_SW_DI_2_PKT_WORD3 … #define HDMI_SW_DI_2_PKT_WORD4 … #define HDMI_SW_DI_2_PKT_WORD5 … #define HDMI_SW_DI_2_PKT_WORD6 … #define HDMI_SW_DI_3_HEAD_WORD … #define HDMI_SW_DI_3_PKT_WORD0 … #define HDMI_SW_DI_3_PKT_WORD1 … #define HDMI_SW_DI_3_PKT_WORD2 … #define HDMI_SW_DI_3_PKT_WORD3 … #define HDMI_SW_DI_3_PKT_WORD4 … #define HDMI_SW_DI_3_PKT_WORD5 … #define HDMI_SW_DI_3_PKT_WORD6 … #define HDMI_IFRAME_SLOT_AVI … #define HDMI_IFRAME_SLOT_AUDIO … #define HDMI_IFRAME_SLOT_VENDOR … #define XCAT(prefix, x, suffix) … #define HDMI_SW_DI_N_HEAD_WORD(x) … #define HDMI_SW_DI_N_PKT_WORD0(x) … #define HDMI_SW_DI_N_PKT_WORD1(x) … #define HDMI_SW_DI_N_PKT_WORD2(x) … #define HDMI_SW_DI_N_PKT_WORD3(x) … #define HDMI_SW_DI_N_PKT_WORD4(x) … #define HDMI_SW_DI_N_PKT_WORD5(x) … #define HDMI_SW_DI_N_PKT_WORD6(x) … #define HDMI_SW_DI_MAX_WORD … #define HDMI_IFRAME_DISABLED … #define HDMI_IFRAME_SINGLE_SHOT … #define HDMI_IFRAME_FIELD … #define HDMI_IFRAME_FRAME … #define HDMI_IFRAME_MASK … #define HDMI_IFRAME_CFG_DI_N(x, n) … #define HDMI_CFG_DEVICE_EN … #define HDMI_CFG_HDMI_NOT_DVI … #define HDMI_CFG_HDCP_EN … #define HDMI_CFG_ESS_NOT_OESS … #define HDMI_CFG_H_SYNC_POL_NEG … #define HDMI_CFG_V_SYNC_POL_NEG … #define HDMI_CFG_422_EN … #define HDMI_CFG_FIFO_OVERRUN_CLR … #define HDMI_CFG_FIFO_UNDERRUN_CLR … #define HDMI_CFG_SW_RST_EN … #define HDMI_INT_GLOBAL … #define HDMI_INT_SW_RST … #define HDMI_INT_PIX_CAP … #define HDMI_INT_HOT_PLUG … #define HDMI_INT_DLL_LCK … #define HDMI_INT_NEW_FRAME … #define HDMI_INT_GENCTRL_PKT … #define HDMI_INT_AUDIO_FIFO_XRUN … #define HDMI_INT_SINK_TERM_PRESENT … #define HDMI_DEFAULT_INT … #define HDMI_WORKING_INT … #define HDMI_STA_SW_RST … #define HDMI_AUD_CFG_8CH … #define HDMI_AUD_CFG_SPDIF_DIV_2 … #define HDMI_AUD_CFG_SPDIF_DIV_3 … #define HDMI_AUD_CFG_SPDIF_CLK_DIV_4 … #define HDMI_AUD_CFG_CTS_CLK_256FS … #define HDMI_AUD_CFG_DTS_INVALID … #define HDMI_AUD_CFG_ONE_BIT_INVALID … #define HDMI_AUD_CFG_CH12_VALID … #define HDMI_AUD_CFG_CH34_VALID … #define HDMI_AUD_CFG_CH56_VALID … #define HDMI_AUD_CFG_CH78_VALID … /* sample flat mask */ #define HDMI_SAMPLE_FLAT_NO … #define HDMI_SAMPLE_FLAT_SP0 … #define HDMI_SAMPLE_FLAT_SP1 … #define HDMI_SAMPLE_FLAT_SP2 … #define HDMI_SAMPLE_FLAT_SP3 … #define HDMI_SAMPLE_FLAT_ALL … #define HDMI_INFOFRAME_HEADER_TYPE(x) … #define HDMI_INFOFRAME_HEADER_VERSION(x) … #define HDMI_INFOFRAME_HEADER_LEN(x) … struct sti_hdmi_connector { … }; #define to_sti_hdmi_connector(x) … static const struct drm_prop_enum_list colorspace_mode_names[] = …; u32 hdmi_read(struct sti_hdmi *hdmi, int offset) { … } void hdmi_write(struct sti_hdmi *hdmi, u32 val, int offset) { … } /* * HDMI interrupt handler threaded * * @irq: irq number * @arg: connector structure */ static irqreturn_t hdmi_irq_thread(int irq, void *arg) { … } /* * HDMI interrupt handler * * @irq: irq number * @arg: connector structure */ static irqreturn_t hdmi_irq(int irq, void *arg) { … } /* * Set hdmi active area depending on the drm display mode selected * * @hdmi: pointer on the hdmi internal structure */ static void hdmi_active_area(struct sti_hdmi *hdmi) { … } /* * Overall hdmi configuration * * @hdmi: pointer on the hdmi internal structure */ static void hdmi_config(struct sti_hdmi *hdmi) { … } /* * Helper to reset info frame * * @hdmi: pointer on the hdmi internal structure * @slot: infoframe to reset */ static void hdmi_infoframe_reset(struct sti_hdmi *hdmi, u32 slot) { … } /* * Helper to concatenate infoframe in 32 bits word * * @ptr: pointer on the hdmi internal structure * @size: size to write */ static inline unsigned int hdmi_infoframe_subpack(const u8 *ptr, size_t size) { … } /* * Helper to write info frame * * @hdmi: pointer on the hdmi internal structure * @data: infoframe to write * @size: size to write */ static void hdmi_infoframe_write_infopack(struct sti_hdmi *hdmi, const u8 *data, size_t size) { … } /* * Prepare and configure the AVI infoframe * * AVI infoframe are transmitted at least once per two video field and * contains information about HDMI transmission mode such as color space, * colorimetry, ... * * @hdmi: pointer on the hdmi internal structure * * Return negative value if error occurs */ static int hdmi_avi_infoframe_config(struct sti_hdmi *hdmi) { … } /* * Prepare and configure the AUDIO infoframe * * AUDIO infoframe are transmitted once per frame and * contains information about HDMI transmission mode such as audio codec, * sample size, ... * * @hdmi: pointer on the hdmi internal structure * * Return negative value if error occurs */ static int hdmi_audio_infoframe_config(struct sti_hdmi *hdmi) { … } /* * Prepare and configure the VS infoframe * * Vendor Specific infoframe are transmitted once per frame and * contains vendor specific information. * * @hdmi: pointer on the hdmi internal structure * * Return negative value if error occurs */ #define HDMI_VENDOR_INFOFRAME_MAX_SIZE … static int hdmi_vendor_infoframe_config(struct sti_hdmi *hdmi) { … } #define HDMI_TIMEOUT_SWRESET … /* * Software reset of the hdmi subsystem * * @hdmi: pointer on the hdmi internal structure * */ static void hdmi_swreset(struct sti_hdmi *hdmi) { … } #define DBGFS_PRINT_STR(str1, str2) … #define DBGFS_PRINT_INT(str1, int2) … #define DBGFS_DUMP(str, reg) … #define DBGFS_DUMP_DI(reg, slot) … static void hdmi_dbg_cfg(struct seq_file *s, int val) { … } static void hdmi_dbg_sta(struct seq_file *s, int val) { … } static void hdmi_dbg_sw_di_cfg(struct seq_file *s, int val) { … } static int hdmi_dbg_show(struct seq_file *s, void *data) { … } static struct drm_info_list hdmi_debugfs_files[] = …; static void hdmi_debugfs_init(struct sti_hdmi *hdmi, struct drm_minor *minor) { … } static void sti_hdmi_disable(struct drm_bridge *bridge) { … } /* * sti_hdmi_audio_get_non_coherent_n() - get N parameter for non-coherent * clocks. None-coherent clocks means that audio and TMDS clocks have not the * same source (drifts between clocks). In this case assumption is that CTS is * automatically calculated by hardware. * * @audio_fs: audio frame clock frequency in Hz * * Values computed are based on table described in HDMI specification 1.4b * * Returns n value. */ static int sti_hdmi_audio_get_non_coherent_n(unsigned int audio_fs) { … } static int hdmi_audio_configure(struct sti_hdmi *hdmi) { … } static void sti_hdmi_pre_enable(struct drm_bridge *bridge) { … } static void sti_hdmi_set_mode(struct drm_bridge *bridge, const struct drm_display_mode *mode, const struct drm_display_mode *adjusted_mode) { … } static void sti_hdmi_bridge_nope(struct drm_bridge *bridge) { … } static const struct drm_bridge_funcs sti_hdmi_bridge_funcs = …; static int sti_hdmi_connector_get_modes(struct drm_connector *connector) { … } #define CLK_TOLERANCE_HZ … static enum drm_mode_status sti_hdmi_connector_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { … } static const struct drm_connector_helper_funcs sti_hdmi_connector_helper_funcs = …; /* get detection status of display device */ static enum drm_connector_status sti_hdmi_connector_detect(struct drm_connector *connector, bool force) { … } static void sti_hdmi_connector_init_property(struct drm_device *drm_dev, struct drm_connector *connector) { … } static int sti_hdmi_connector_set_property(struct drm_connector *connector, struct drm_connector_state *state, struct drm_property *property, uint64_t val) { … } static int sti_hdmi_connector_get_property(struct drm_connector *connector, const struct drm_connector_state *state, struct drm_property *property, uint64_t *val) { … } static int sti_hdmi_late_register(struct drm_connector *connector) { … } static const struct drm_connector_funcs sti_hdmi_connector_funcs = …; static struct drm_encoder *sti_hdmi_find_encoder(struct drm_device *dev) { … } static void hdmi_audio_shutdown(struct device *dev, void *data) { … } static int hdmi_audio_hw_params(struct device *dev, void *data, struct hdmi_codec_daifmt *daifmt, struct hdmi_codec_params *params) { … } static int hdmi_audio_mute(struct device *dev, void *data, bool enable, int direction) { … } static int hdmi_audio_get_eld(struct device *dev, void *data, uint8_t *buf, size_t len) { … } static const struct hdmi_codec_ops audio_codec_ops = …; static int sti_hdmi_register_audio_driver(struct device *dev, struct sti_hdmi *hdmi) { … } static int sti_hdmi_bind(struct device *dev, struct device *master, void *data) { … } static void sti_hdmi_unbind(struct device *dev, struct device *master, void *data) { … } static const struct component_ops sti_hdmi_ops = …; static const struct of_device_id hdmi_of_match[] = …; MODULE_DEVICE_TABLE(of, hdmi_of_match); static int sti_hdmi_probe(struct platform_device *pdev) { … } static void sti_hdmi_remove(struct platform_device *pdev) { … } struct platform_driver sti_hdmi_driver = …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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