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/*
* rcar_du_drv.h -- R-Car Display Unit DRM driver
*
* Copyright (C) 2013 Renesas Corporation
*
* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __RCAR_DU_DRV_H__
#define __RCAR_DU_DRV_H__
#include <linux/kernel.h>
#include <linux/platform_data/rcar-du.h>
#include "rcar_du_crtc.h"
#include "rcar_du_group.h"
struct clk;
struct device;
struct drm_device;
struct drm_fbdev_cma;
struct rcar_du_device;
struct rcar_du_lvdsenc;
#define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK (1 << 0) /* Per-CRTC IRQ and clock */
#define RCAR_DU_FEATURE_ALIGN_128B (1 << 1) /* Align pitches to 128 bytes */
#define RCAR_DU_FEATURE_DEFR8 (1 << 2) /* Has DEFR8 register */
/*
* struct rcar_du_output_routing - Output routing specification
* @possible_crtcs: bitmask of possible CRTCs for the output
* @encoder_type: DRM type of the internal encoder associated with the output
*
* 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 encoder_type;
};
/*
* struct rcar_du_device_info - DU model-specific information
* @features: device features (RCAR_DU_FEATURE_*)
* @num_crtcs: total number of CRTCs
* @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*)
* @num_lvds: number of internal LVDS encoders
*/
struct rcar_du_device_info {
unsigned int features;
unsigned int num_crtcs;
struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX];
unsigned int num_lvds;
};
struct rcar_du_device {
struct device *dev;
const struct rcar_du_platform_data *pdata;
const struct rcar_du_device_info *info;
void __iomem *mmio;
struct drm_device *ddev;
struct drm_fbdev_cma *fbdev;
struct rcar_du_crtc crtcs[3];
unsigned int num_crtcs;
struct rcar_du_group groups[2];
unsigned int dpad0_source;
struct rcar_du_lvdsenc *lvds[2];
};
static inline bool rcar_du_has(struct rcar_du_device *rcdu,
unsigned int feature)
{
return rcdu->info->features & feature;
}
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__ */
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