// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) STMicroelectronics SA 2014 * Author: Fabien Dessenne <[email protected]> for STMicroelectronics. */ #include <linux/clk.h> #include <linux/component.h> #include <linux/io.h> #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/seq_file.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_bridge.h> #include <drm/drm_debugfs.h> #include <drm/drm_device.h> #include <drm/drm_file.h> #include <drm/drm_print.h> #include <drm/drm_probe_helper.h> /* HDformatter registers */ #define HDA_ANA_CFG … #define HDA_ANA_SCALE_CTRL_Y … #define HDA_ANA_SCALE_CTRL_CB … #define HDA_ANA_SCALE_CTRL_CR … #define HDA_ANA_ANC_CTRL … #define HDA_ANA_SRC_Y_CFG … #define HDA_COEFF_Y_PH1_TAP123 … #define HDA_COEFF_Y_PH1_TAP456 … #define HDA_COEFF_Y_PH2_TAP123 … #define HDA_COEFF_Y_PH2_TAP456 … #define HDA_COEFF_Y_PH3_TAP123 … #define HDA_COEFF_Y_PH3_TAP456 … #define HDA_COEFF_Y_PH4_TAP123 … #define HDA_COEFF_Y_PH4_TAP456 … #define HDA_ANA_SRC_C_CFG … #define HDA_COEFF_C_PH1_TAP123 … #define HDA_COEFF_C_PH1_TAP456 … #define HDA_COEFF_C_PH2_TAP123 … #define HDA_COEFF_C_PH2_TAP456 … #define HDA_COEFF_C_PH3_TAP123 … #define HDA_COEFF_C_PH3_TAP456 … #define HDA_COEFF_C_PH4_TAP123 … #define HDA_COEFF_C_PH4_TAP456 … #define HDA_SYNC_AWGI … /* HDA_ANA_CFG */ #define CFG_AWG_ASYNC_EN … #define CFG_AWG_ASYNC_HSYNC_MTD … #define CFG_AWG_ASYNC_VSYNC_MTD … #define CFG_AWG_SYNC_DEL … #define CFG_AWG_FLTR_MODE_SHIFT … #define CFG_AWG_FLTR_MODE_MASK … #define CFG_AWG_FLTR_MODE_SD … #define CFG_AWG_FLTR_MODE_ED … #define CFG_AWG_FLTR_MODE_HD … #define CFG_SYNC_ON_PBPR_MASK … #define CFG_PREFILTER_EN_MASK … #define CFG_PBPR_SYNC_OFF_SHIFT … #define CFG_PBPR_SYNC_OFF_MASK … #define CFG_PBPR_SYNC_OFF_VAL … /* Default scaling values */ #define SCALE_CTRL_Y_DFLT … #define SCALE_CTRL_CB_DFLT … #define SCALE_CTRL_CR_DFLT … /* Video DACs control */ #define DAC_CFG_HD_HZUVW_OFF_MASK … /* Upsampler values for the alternative 2X Filter */ #define SAMPLER_COEF_NB … #define HDA_ANA_SRC_Y_CFG_ALT_2X … static u32 coef_y_alt_2x[] = …; #define HDA_ANA_SRC_C_CFG_ALT_2X … static u32 coef_c_alt_2x[] = …; /* Upsampler values for the 4X Filter */ #define HDA_ANA_SRC_Y_CFG_4X … #define HDA_ANA_SRC_C_CFG_4X … static u32 coef_yc_4x[] = …; /* AWG instructions for some video modes */ #define AWG_MAX_INST … /* 720p@50 */ static u32 AWGi_720p_50[] = …; #define NN_720p_50 … /* 720p@60 */ static u32 AWGi_720p_60[] = …; #define NN_720p_60 … /* 1080p@30 */ static u32 AWGi_1080p_30[] = …; #define NN_1080p_30 … /* 1080p@25 */ static u32 AWGi_1080p_25[] = …; #define NN_1080p_25 … /* 1080p@24 */ static u32 AWGi_1080p_24[] = …; #define NN_1080p_24 … /* 720x480p@60 */ static u32 AWGi_720x480p_60[] = …; #define NN_720x480p_60 … /* Video mode category */ enum sti_hda_vid_cat { … }; struct sti_hda_video_config { … }; /* HD analog supported modes * Interlaced modes may be added when supported by the whole display chain */ static const struct sti_hda_video_config hda_supported_modes[] = …; /* * STI hd analog structure * * @dev: driver device * @drm_dev: pointer to drm device * @mode: current display mode selected * @regs: HD analog register * @video_dacs_ctrl: video DACS control register * @enabled: true if HD analog is enabled else false */ struct sti_hda { … }; struct sti_hda_connector { … }; #define to_sti_hda_connector(x) … static u32 hda_read(struct sti_hda *hda, int offset) { … } static void hda_write(struct sti_hda *hda, u32 val, int offset) { … } /** * hda_get_mode_idx - Search for a video mode in the supported modes table * * @mode: mode being searched * @idx: index of the found mode * * Return true if mode is found */ static bool hda_get_mode_idx(struct drm_display_mode mode, int *idx) { … } /** * hda_enable_hd_dacs - Enable the HD DACS * * @hda: pointer to HD analog structure * @enable: true if HD DACS need to be enabled, else false */ static void hda_enable_hd_dacs(struct sti_hda *hda, bool enable) { … } #define DBGFS_DUMP(reg) … static void hda_dbg_cfg(struct seq_file *s, int val) { … } static void hda_dbg_awg_microcode(struct seq_file *s, void __iomem *reg) { … } static void hda_dbg_video_dacs_ctrl(struct seq_file *s, void __iomem *reg) { … } static int hda_dbg_show(struct seq_file *s, void *data) { … } static struct drm_info_list hda_debugfs_files[] = …; static void hda_debugfs_init(struct sti_hda *hda, struct drm_minor *minor) { … } /** * sti_hda_configure_awg - Configure AWG, writing instructions * * @hda: pointer to HD analog structure * @awg_instr: pointer to AWG instructions table * @nb: nb of AWG instructions */ static void sti_hda_configure_awg(struct sti_hda *hda, u32 *awg_instr, int nb) { … } static void sti_hda_disable(struct drm_bridge *bridge) { … } static void sti_hda_pre_enable(struct drm_bridge *bridge) { … } static void sti_hda_set_mode(struct drm_bridge *bridge, const struct drm_display_mode *mode, const struct drm_display_mode *adjusted_mode) { … } static void sti_hda_bridge_nope(struct drm_bridge *bridge) { … } static const struct drm_bridge_funcs sti_hda_bridge_funcs = …; static int sti_hda_connector_get_modes(struct drm_connector *connector) { … } #define CLK_TOLERANCE_HZ … static enum drm_mode_status sti_hda_connector_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { … } static const struct drm_connector_helper_funcs sti_hda_connector_helper_funcs = …; static int sti_hda_late_register(struct drm_connector *connector) { … } static const struct drm_connector_funcs sti_hda_connector_funcs = …; static struct drm_encoder *sti_hda_find_encoder(struct drm_device *dev) { … } static int sti_hda_bind(struct device *dev, struct device *master, void *data) { … } static void sti_hda_unbind(struct device *dev, struct device *master, void *data) { … } static const struct component_ops sti_hda_ops = …; static int sti_hda_probe(struct platform_device *pdev) { … } static void sti_hda_remove(struct platform_device *pdev) { … } static const struct of_device_id hda_of_match[] = …; MODULE_DEVICE_TABLE(of, hda_of_match); struct platform_driver sti_hda_driver = …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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