| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * rcar_du_drv.h -- R-Car Display Unit DRM driver |
| * |
| * Copyright (C) 2013-2015 Renesas Electronics Corporation |
| * |
| * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) |
| */ |
| |
| #ifndef __RCAR_DU_DRV_H__ |
| #define __RCAR_DU_DRV_H__ |
| |
| #include <linux/kernel.h> |
| #include <linux/wait.h> |
| |
| #include "rcar_du_crtc.h" |
| #include "rcar_du_group.h" |
| #include "rcar_du_vsp.h" |
| |
| struct clk; |
| struct device; |
| struct drm_device; |
| struct rcar_du_device; |
| |
| #define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK BIT(0) /* Per-CRTC IRQ and clock */ |
| #define RCAR_DU_FEATURE_EXT_CTRL_REGS BIT(1) /* Has extended control registers */ |
| #define RCAR_DU_FEATURE_VSP1_SOURCE BIT(2) /* Has inputs from VSP1 */ |
| #define RCAR_DU_FEATURE_INTERLACED BIT(3) /* HW supports interlaced */ |
| #define RCAR_DU_FEATURE_TVM_SYNC BIT(4) /* Has TV switch/sync modes */ |
| |
| #define RCAR_DU_QUIRK_ALIGN_128B BIT(0) /* Align pitches to 128 bytes */ |
| |
| /* |
| * struct rcar_du_output_routing - Output routing specification |
| * @possible_crtcs: bitmask of possible CRTCs for the output |
| * @port: device tree port number corresponding to this output route |
| * |
| * The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). Output routing data |
| * specify the valid SoC outputs, which CRTCs can drive the output, and the type |
| * of in-SoC encoder for the output. |
| */ |
| struct rcar_du_output_routing { |
| unsigned int possible_crtcs; |
| unsigned int port; |
| }; |
| |
| /* |
| * struct rcar_du_device_info - DU model-specific information |
| * @gen: device generation (2 or 3) |
| * @features: device features (RCAR_DU_FEATURE_*) |
| * @quirks: device quirks (RCAR_DU_QUIRK_*) |
| * @channels_mask: bit mask of available DU channels |
| * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*) |
| * @num_lvds: number of internal LVDS encoders |
| * @dpll_mask: bit mask of DU channels equipped with a DPLL |
| * @lvds_clk_mask: bitmask of channels that can use the LVDS clock as dot clock |
| */ |
| struct rcar_du_device_info { |
| unsigned int gen; |
| unsigned int features; |
| unsigned int quirks; |
| unsigned int channels_mask; |
| struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX]; |
| unsigned int num_lvds; |
| unsigned int dpll_mask; |
| unsigned int lvds_clk_mask; |
| }; |
| |
| #define RCAR_DU_MAX_CRTCS 4 |
| #define RCAR_DU_MAX_GROUPS DIV_ROUND_UP(RCAR_DU_MAX_CRTCS, 2) |
| #define RCAR_DU_MAX_VSPS 4 |
| |
| struct rcar_du_device { |
| struct device *dev; |
| const struct rcar_du_device_info *info; |
| |
| void __iomem *mmio; |
| |
| struct drm_device *ddev; |
| |
| struct rcar_du_crtc crtcs[RCAR_DU_MAX_CRTCS]; |
| unsigned int num_crtcs; |
| |
| struct rcar_du_group groups[RCAR_DU_MAX_GROUPS]; |
| struct rcar_du_vsp vsps[RCAR_DU_MAX_VSPS]; |
| |
| struct { |
| struct drm_property *colorkey; |
| } props; |
| |
| unsigned int dpad0_source; |
| unsigned int vspd1_sink; |
| }; |
| |
| static inline bool rcar_du_has(struct rcar_du_device *rcdu, |
| unsigned int feature) |
| { |
| return rcdu->info->features & feature; |
| } |
| |
| static inline bool rcar_du_needs(struct rcar_du_device *rcdu, |
| unsigned int quirk) |
| { |
| return rcdu->info->quirks & quirk; |
| } |
| |
| static inline u32 rcar_du_read(struct rcar_du_device *rcdu, u32 reg) |
| { |
| return ioread32(rcdu->mmio + reg); |
| } |
| |
| static inline void rcar_du_write(struct rcar_du_device *rcdu, u32 reg, u32 data) |
| { |
| iowrite32(data, rcdu->mmio + reg); |
| } |
| |
| #endif /* __RCAR_DU_DRV_H__ */ |