root/drivers/gpu/drm/rcar-du/rcar_du_drv.h

INCLUDED FROM

DEFINITIONS

1. rcar_du_has
2. rcar_du_needs
3. rcar_du_read
4. rcar_du_write

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * rcar_du_drv.h  --  R-Car Display Unit DRM driver
   4  *
   5  * Copyright (C) 2013-2015 Renesas Electronics Corporation
   6  *
   7  * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
   8  */
   9 
  10 #ifndef __RCAR_DU_DRV_H__
  11 #define __RCAR_DU_DRV_H__
  12 
  13 #include <linux/kernel.h>
  14 #include <linux/wait.h>
  15 
  16 #include "rcar_du_crtc.h"
  17 #include "rcar_du_group.h"
  18 #include "rcar_du_vsp.h"
  19 
  20 struct clk;
  21 struct device;
  22 struct drm_device;
  23 struct drm_property;
  24 struct rcar_du_device;
  25 struct rcar_du_encoder;
  26 
  27 #define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK  BIT(0)  /* Per-CRTC IRQ and clock */
  28 #define RCAR_DU_FEATURE_VSP1_SOURCE     BIT(1)  /* Has inputs from VSP1 */
  29 #define RCAR_DU_FEATURE_INTERLACED      BIT(2)  /* HW supports interlaced */
  30 #define RCAR_DU_FEATURE_TVM_SYNC        BIT(3)  /* Has TV switch/sync modes */
  31 
  32 #define RCAR_DU_QUIRK_ALIGN_128B        BIT(0)  /* Align pitches to 128 bytes */
  33 
  34 /*
  35  * struct rcar_du_output_routing - Output routing specification
  36  * @possible_crtcs: bitmask of possible CRTCs for the output
  37  * @port: device tree port number corresponding to this output route
  38  *
  39  * The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). Output routing data
  40  * specify the valid SoC outputs, which CRTCs can drive the output, and the type
  41  * of in-SoC encoder for the output.
  42  */
  43 struct rcar_du_output_routing {
  44         unsigned int possible_crtcs;
  45         unsigned int port;
  46 };
  47 
  48 /*
  49  * struct rcar_du_device_info - DU model-specific information
  50  * @gen: device generation (2 or 3)
  51  * @features: device features (RCAR_DU_FEATURE_*)
  52  * @quirks: device quirks (RCAR_DU_QUIRK_*)
  53  * @channels_mask: bit mask of available DU channels
  54  * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*)
  55  * @num_lvds: number of internal LVDS encoders
  56  * @dpll_mask: bit mask of DU channels equipped with a DPLL
  57  * @lvds_clk_mask: bitmask of channels that can use the LVDS clock as dot clock
  58  */
  59 struct rcar_du_device_info {
  60         unsigned int gen;
  61         unsigned int features;
  62         unsigned int quirks;
  63         unsigned int channels_mask;
  64         struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX];
  65         unsigned int num_lvds;
  66         unsigned int dpll_mask;
  67         unsigned int lvds_clk_mask;
  68 };
  69 
  70 #define RCAR_DU_MAX_CRTCS               4
  71 #define RCAR_DU_MAX_GROUPS              DIV_ROUND_UP(RCAR_DU_MAX_CRTCS, 2)
  72 #define RCAR_DU_MAX_VSPS                4
  73 
  74 struct rcar_du_device {
  75         struct device *dev;
  76         const struct rcar_du_device_info *info;
  77 
  78         void __iomem *mmio;
  79 
  80         struct drm_device *ddev;
  81 
  82         struct rcar_du_crtc crtcs[RCAR_DU_MAX_CRTCS];
  83         unsigned int num_crtcs;
  84 
  85         struct rcar_du_encoder *encoders[RCAR_DU_OUTPUT_MAX];
  86 
  87         struct rcar_du_group groups[RCAR_DU_MAX_GROUPS];
  88         struct rcar_du_vsp vsps[RCAR_DU_MAX_VSPS];
  89 
  90         struct {
  91                 struct drm_property *colorkey;
  92         } props;
  93 
  94         unsigned int dpad0_source;
  95         unsigned int dpad1_source;
  96         unsigned int vspd1_sink;
  97 };
  98 
  99 static inline bool rcar_du_has(struct rcar_du_device *rcdu,
 100                                unsigned int feature)
 101 {
 102         return rcdu->info->features & feature;
 103 }
 104 
 105 static inline bool rcar_du_needs(struct rcar_du_device *rcdu,
 106                                  unsigned int quirk)
 107 {
 108         return rcdu->info->quirks & quirk;
 109 }
 110 
 111 static inline u32 rcar_du_read(struct rcar_du_device *rcdu, u32 reg)
 112 {
 113         return ioread32(rcdu->mmio + reg);
 114 }
 115 
 116 static inline void rcar_du_write(struct rcar_du_device *rcdu, u32 reg, u32 data)
 117 {
 118         iowrite32(data, rcdu->mmio + reg);
 119 }
 120 
 121 #endif /* __RCAR_DU_DRV_H__ */