// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) STMicroelectronics SA 2014 * Authors: Fabien Dessenne <[email protected]> for STMicroelectronics. */ #include <linux/component.h> #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/firmware.h> #include <linux/io.h> #include <linux/module.h> #include <linux/of.h> #include <linux/reset.h> #include <linux/seq_file.h> #include <drm/drm_atomic.h> #include <drm/drm_device.h> #include <drm/drm_fb_dma_helper.h> #include <drm/drm_fourcc.h> #include <drm/drm_framebuffer.h> #include <drm/drm_gem_dma_helper.h> #include "sti_compositor.h" #include "sti_drv.h" #include "sti_hqvdp_lut.h" #include "sti_plane.h" #include "sti_vtg.h" /* Firmware name */ #define HQVDP_FMW_NAME … /* Regs address */ #define HQVDP_DMEM … #define HQVDP_PMEM … #define HQVDP_RD_PLUG … #define HQVDP_RD_PLUG_CONTROL … #define HQVDP_RD_PLUG_PAGE_SIZE … #define HQVDP_RD_PLUG_MIN_OPC … #define HQVDP_RD_PLUG_MAX_OPC … #define HQVDP_RD_PLUG_MAX_CHK … #define HQVDP_RD_PLUG_MAX_MSG … #define HQVDP_RD_PLUG_MIN_SPACE … #define HQVDP_WR_PLUG … #define HQVDP_WR_PLUG_CONTROL … #define HQVDP_WR_PLUG_PAGE_SIZE … #define HQVDP_WR_PLUG_MIN_OPC … #define HQVDP_WR_PLUG_MAX_OPC … #define HQVDP_WR_PLUG_MAX_CHK … #define HQVDP_WR_PLUG_MAX_MSG … #define HQVDP_WR_PLUG_MIN_SPACE … #define HQVDP_MBX … #define HQVDP_MBX_IRQ_TO_XP70 … #define HQVDP_MBX_INFO_HOST … #define HQVDP_MBX_IRQ_TO_HOST … #define HQVDP_MBX_INFO_XP70 … #define HQVDP_MBX_SW_RESET_CTRL … #define HQVDP_MBX_STARTUP_CTRL1 … #define HQVDP_MBX_STARTUP_CTRL2 … #define HQVDP_MBX_GP_STATUS … #define HQVDP_MBX_NEXT_CMD … #define HQVDP_MBX_CURRENT_CMD … #define HQVDP_MBX_SOFT_VSYNC … /* Plugs config */ #define PLUG_CONTROL_ENABLE … #define PLUG_PAGE_SIZE_256 … #define PLUG_MIN_OPC_8 … #define PLUG_MAX_OPC_64 … #define PLUG_MAX_CHK_2X … #define PLUG_MAX_MSG_1X … #define PLUG_MIN_SPACE_1 … /* SW reset CTRL */ #define SW_RESET_CTRL_FULL … #define SW_RESET_CTRL_CORE … /* Startup ctrl 1 */ #define STARTUP_CTRL1_RST_DONE … #define STARTUP_CTRL1_AUTH_IDLE … /* Startup ctrl 2 */ #define STARTUP_CTRL2_FETCH_EN … /* Info xP70 */ #define INFO_XP70_FW_READY … #define INFO_XP70_FW_PROCESSING … #define INFO_XP70_FW_INITQUEUES … /* SOFT_VSYNC */ #define SOFT_VSYNC_HW … #define SOFT_VSYNC_SW_CMD … #define SOFT_VSYNC_SW_CTRL_IRQ … /* Reset & boot poll config */ #define POLL_MAX_ATTEMPT … #define POLL_DELAY_MS … #define SCALE_FACTOR … #define SCALE_MAX_FOR_LEG_LUT_F … #define SCALE_MAX_FOR_LEG_LUT_E … #define SCALE_MAX_FOR_LEG_LUT_D … #define SCALE_MAX_FOR_LEG_LUT_C … enum sti_hvsrc_orient { … }; /* Command structures */ struct sti_hqvdp_top { … }; /* Configs for interlaced : no IT, no pass thru, 3 fields */ #define TOP_CONFIG_INTER_BTM … #define TOP_CONFIG_INTER_TOP … /* Config for progressive : no IT, no pass thru, 3 fields */ #define TOP_CONFIG_PROGRESSIVE … /* Default MemFormat: in=420_raster_dual out=444_raster;opaque Mem2Tv mode */ #define TOP_MEM_FORMAT_DFLT … /* Min/Max size */ #define MAX_WIDTH … #define MAX_HEIGHT … #define MIN_WIDTH … #define MIN_HEIGHT … struct sti_hqvdp_vc1re { … }; struct sti_hqvdp_fmd { … }; struct sti_hqvdp_csdi { … }; /* Config for progressive: by pass */ #define CSDI_CONFIG_PROG … /* Config for directional deinterlacing without motion */ #define CSDI_CONFIG_INTER_DIR … /* Additional configs for fader, blender, motion,... deinterlace algorithms */ #define CSDI_CONFIG2_DFLT … #define CSDI_DCDI_CONFIG_DFLT … struct sti_hqvdp_hvsrc { … }; /* Default ParamCtrl: all controls enabled */ #define HVSRC_PARAM_CTRL_DFLT … struct sti_hqvdp_iqi { … }; /* Default Config : IQI bypassed */ #define IQI_CONFIG_DFLT … /* Default Contrast & Brightness gain = 256 */ #define IQI_CON_BRI_DFLT … /* Default Saturation gain = 256 */ #define IQI_SAT_GAIN_DFLT … /* Default PxfConf : P2I bypassed */ #define IQI_PXF_CONF_DFLT … struct sti_hqvdp_top_status { … }; struct sti_hqvdp_fmd_status { … }; struct sti_hqvdp_csdi_status { … }; struct sti_hqvdp_hvsrc_status { … }; struct sti_hqvdp_iqi_status { … }; /* Main commands. We use 2 commands one being processed by the firmware, one * ready to be fetched upon next Vsync*/ #define NB_VDP_CMD … struct sti_hqvdp_cmd { … }; /* * STI HQVDP structure * * @dev: driver device * @drm_dev: the drm device * @regs: registers * @plane: plane structure for hqvdp it self * @clk: IP clock * @clk_pix_main: pix main clock * @reset: reset control * @vtg_nb: notifier to handle VTG Vsync * @btm_field_pending: is there any bottom field (interlaced frame) to display * @hqvdp_cmd: buffer of commands * @hqvdp_cmd_paddr: physical address of hqvdp_cmd * @vtg: vtg for main data path * @xp70_initialized: true if xp70 is already initialized * @vtg_registered: true if registered to VTG */ struct sti_hqvdp { … }; #define to_sti_hqvdp(x) … static const uint32_t hqvdp_supported_formats[] = …; /** * sti_hqvdp_get_free_cmd * @hqvdp: hqvdp structure * * Look for a hqvdp_cmd that is not being used (or about to be used) by the FW. * * RETURNS: * the offset of the command to be used. * -1 in error cases */ static int sti_hqvdp_get_free_cmd(struct sti_hqvdp *hqvdp) { … } /** * sti_hqvdp_get_curr_cmd * @hqvdp: hqvdp structure * * Look for the hqvdp_cmd that is being used by the FW. * * RETURNS: * the offset of the command to be used. * -1 in error cases */ static int sti_hqvdp_get_curr_cmd(struct sti_hqvdp *hqvdp) { … } /** * sti_hqvdp_get_next_cmd * @hqvdp: hqvdp structure * * Look for the next hqvdp_cmd that will be used by the FW. * * RETURNS: * the offset of the next command that will be used. * -1 in error cases */ static int sti_hqvdp_get_next_cmd(struct sti_hqvdp *hqvdp) { … } #define DBGFS_DUMP(reg) … static const char *hqvdp_dbg_get_lut(u32 *coef) { … } static void hqvdp_dbg_dump_cmd(struct seq_file *s, struct sti_hqvdp_cmd *c) { … } static int hqvdp_dbg_show(struct seq_file *s, void *data) { … } static struct drm_info_list hqvdp_debugfs_files[] = …; static void hqvdp_debugfs_init(struct sti_hqvdp *hqvdp, struct drm_minor *minor) { … } /** * sti_hqvdp_update_hvsrc * @orient: horizontal or vertical * @scale: scaling/zoom factor * @hvsrc: the structure containing the LUT coef * * Update the Y and C Lut coef, as well as the shift param * * RETURNS: * None. */ static void sti_hqvdp_update_hvsrc(enum sti_hvsrc_orient orient, int scale, struct sti_hqvdp_hvsrc *hvsrc) { … } /** * sti_hqvdp_check_hw_scaling * @hqvdp: hqvdp pointer * @mode: display mode with timing constraints * @src_w: source width * @src_h: source height * @dst_w: destination width * @dst_h: destination height * * Check if the HW is able to perform the scaling request * The firmware scaling limitation is "CEIL(1/Zy) <= FLOOR(LFW)" where: * Zy = OutputHeight / InputHeight * LFW = (Tx * IPClock) / (MaxNbCycles * Cp) * Tx : Total video mode horizontal resolution * IPClock : HQVDP IP clock (Mhz) * MaxNbCycles: max(InputWidth, OutputWidth) * Cp: Video mode pixel clock (Mhz) * * RETURNS: * True if the HW can scale. */ static bool sti_hqvdp_check_hw_scaling(struct sti_hqvdp *hqvdp, struct drm_display_mode *mode, int src_w, int src_h, int dst_w, int dst_h) { … } /** * sti_hqvdp_disable * @hqvdp: hqvdp pointer * * Disables the HQVDP plane */ static void sti_hqvdp_disable(struct sti_hqvdp *hqvdp) { … } /** * sti_hqvdp_vtg_cb * @nb: notifier block * @evt: event message * @data: private data * * Handle VTG Vsync event, display pending bottom field * * RETURNS: * 0 on success. */ static int sti_hqvdp_vtg_cb(struct notifier_block *nb, unsigned long evt, void *data) { … } static void sti_hqvdp_init(struct sti_hqvdp *hqvdp) { … } static void sti_hqvdp_init_plugs(struct sti_hqvdp *hqvdp) { … } /** * sti_hqvdp_start_xp70 * @hqvdp: hqvdp pointer * * Run the xP70 initialization sequence */ static void sti_hqvdp_start_xp70(struct sti_hqvdp *hqvdp) { … } static int sti_hqvdp_atomic_check(struct drm_plane *drm_plane, struct drm_atomic_state *state) { … } static void sti_hqvdp_atomic_update(struct drm_plane *drm_plane, struct drm_atomic_state *state) { … } static void sti_hqvdp_atomic_disable(struct drm_plane *drm_plane, struct drm_atomic_state *state) { … } static const struct drm_plane_helper_funcs sti_hqvdp_helpers_funcs = …; static int sti_hqvdp_late_register(struct drm_plane *drm_plane) { … } static const struct drm_plane_funcs sti_hqvdp_plane_helpers_funcs = …; static struct drm_plane *sti_hqvdp_create(struct drm_device *drm_dev, struct device *dev, int desc) { … } static int sti_hqvdp_bind(struct device *dev, struct device *master, void *data) { … } static void sti_hqvdp_unbind(struct device *dev, struct device *master, void *data) { … } static const struct component_ops sti_hqvdp_ops = …; static int sti_hqvdp_probe(struct platform_device *pdev) { … } static void sti_hqvdp_remove(struct platform_device *pdev) { … } static const struct of_device_id hqvdp_of_match[] = …; MODULE_DEVICE_TABLE(of, hqvdp_of_match); struct platform_driver sti_hqvdp_driver = …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
Codebase Browser
linux