mirror of https://gitee.com/openkylin/linux.git
442 lines
14 KiB
C
442 lines
14 KiB
C
/*
|
|
* Copyright (C) 2014 Traphandler
|
|
* Copyright (C) 2014 Free Electrons
|
|
* Copyright (C) 2014 Atmel
|
|
*
|
|
* Author: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
|
|
* Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 as published by
|
|
* the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef DRM_ATMEL_HLCDC_H
|
|
#define DRM_ATMEL_HLCDC_H
|
|
|
|
#include <linux/clk.h>
|
|
#include <linux/dmapool.h>
|
|
#include <linux/irqdomain.h>
|
|
#include <linux/mfd/atmel-hlcdc.h>
|
|
#include <linux/pwm.h>
|
|
|
|
#include <drm/drm_atomic.h>
|
|
#include <drm/drm_atomic_helper.h>
|
|
#include <drm/drm_crtc.h>
|
|
#include <drm/drm_crtc_helper.h>
|
|
#include <drm/drm_fb_cma_helper.h>
|
|
#include <drm/drm_gem_cma_helper.h>
|
|
#include <drm/drm_panel.h>
|
|
#include <drm/drm_plane_helper.h>
|
|
#include <drm/drmP.h>
|
|
|
|
#define ATMEL_HLCDC_LAYER_CHER 0x0
|
|
#define ATMEL_HLCDC_LAYER_CHDR 0x4
|
|
#define ATMEL_HLCDC_LAYER_CHSR 0x8
|
|
#define ATMEL_HLCDC_LAYER_EN BIT(0)
|
|
#define ATMEL_HLCDC_LAYER_UPDATE BIT(1)
|
|
#define ATMEL_HLCDC_LAYER_A2Q BIT(2)
|
|
#define ATMEL_HLCDC_LAYER_RST BIT(8)
|
|
|
|
#define ATMEL_HLCDC_LAYER_IER 0xc
|
|
#define ATMEL_HLCDC_LAYER_IDR 0x10
|
|
#define ATMEL_HLCDC_LAYER_IMR 0x14
|
|
#define ATMEL_HLCDC_LAYER_ISR 0x18
|
|
#define ATMEL_HLCDC_LAYER_DFETCH BIT(0)
|
|
#define ATMEL_HLCDC_LAYER_LFETCH BIT(1)
|
|
#define ATMEL_HLCDC_LAYER_DMA_IRQ(p) BIT(2 + (8 * (p)))
|
|
#define ATMEL_HLCDC_LAYER_DSCR_IRQ(p) BIT(3 + (8 * (p)))
|
|
#define ATMEL_HLCDC_LAYER_ADD_IRQ(p) BIT(4 + (8 * (p)))
|
|
#define ATMEL_HLCDC_LAYER_DONE_IRQ(p) BIT(5 + (8 * (p)))
|
|
#define ATMEL_HLCDC_LAYER_OVR_IRQ(p) BIT(6 + (8 * (p)))
|
|
|
|
#define ATMEL_HLCDC_LAYER_PLANE_HEAD(p) (((p) * 0x10) + 0x1c)
|
|
#define ATMEL_HLCDC_LAYER_PLANE_ADDR(p) (((p) * 0x10) + 0x20)
|
|
#define ATMEL_HLCDC_LAYER_PLANE_CTRL(p) (((p) * 0x10) + 0x24)
|
|
#define ATMEL_HLCDC_LAYER_PLANE_NEXT(p) (((p) * 0x10) + 0x28)
|
|
|
|
#define ATMEL_HLCDC_LAYER_DMA_CFG 0
|
|
#define ATMEL_HLCDC_LAYER_DMA_SIF BIT(0)
|
|
#define ATMEL_HLCDC_LAYER_DMA_BLEN_MASK GENMASK(5, 4)
|
|
#define ATMEL_HLCDC_LAYER_DMA_BLEN_SINGLE (0 << 4)
|
|
#define ATMEL_HLCDC_LAYER_DMA_BLEN_INCR4 (1 << 4)
|
|
#define ATMEL_HLCDC_LAYER_DMA_BLEN_INCR8 (2 << 4)
|
|
#define ATMEL_HLCDC_LAYER_DMA_BLEN_INCR16 (3 << 4)
|
|
#define ATMEL_HLCDC_LAYER_DMA_DLBO BIT(8)
|
|
#define ATMEL_HLCDC_LAYER_DMA_ROTDIS BIT(12)
|
|
#define ATMEL_HLCDC_LAYER_DMA_LOCKDIS BIT(13)
|
|
|
|
#define ATMEL_HLCDC_LAYER_FORMAT_CFG 1
|
|
#define ATMEL_HLCDC_LAYER_RGB (0 << 0)
|
|
#define ATMEL_HLCDC_LAYER_CLUT (1 << 0)
|
|
#define ATMEL_HLCDC_LAYER_YUV (2 << 0)
|
|
#define ATMEL_HLCDC_RGB_MODE(m) \
|
|
(ATMEL_HLCDC_LAYER_RGB | (((m) & 0xf) << 4))
|
|
#define ATMEL_HLCDC_CLUT_MODE(m) \
|
|
(ATMEL_HLCDC_LAYER_CLUT | (((m) & 0x3) << 8))
|
|
#define ATMEL_HLCDC_YUV_MODE(m) \
|
|
(ATMEL_HLCDC_LAYER_YUV | (((m) & 0xf) << 12))
|
|
#define ATMEL_HLCDC_YUV422ROT BIT(16)
|
|
#define ATMEL_HLCDC_YUV422SWP BIT(17)
|
|
#define ATMEL_HLCDC_DSCALEOPT BIT(20)
|
|
|
|
#define ATMEL_HLCDC_XRGB4444_MODE ATMEL_HLCDC_RGB_MODE(0)
|
|
#define ATMEL_HLCDC_ARGB4444_MODE ATMEL_HLCDC_RGB_MODE(1)
|
|
#define ATMEL_HLCDC_RGBA4444_MODE ATMEL_HLCDC_RGB_MODE(2)
|
|
#define ATMEL_HLCDC_RGB565_MODE ATMEL_HLCDC_RGB_MODE(3)
|
|
#define ATMEL_HLCDC_ARGB1555_MODE ATMEL_HLCDC_RGB_MODE(4)
|
|
#define ATMEL_HLCDC_XRGB8888_MODE ATMEL_HLCDC_RGB_MODE(9)
|
|
#define ATMEL_HLCDC_RGB888_MODE ATMEL_HLCDC_RGB_MODE(10)
|
|
#define ATMEL_HLCDC_ARGB8888_MODE ATMEL_HLCDC_RGB_MODE(12)
|
|
#define ATMEL_HLCDC_RGBA8888_MODE ATMEL_HLCDC_RGB_MODE(13)
|
|
|
|
#define ATMEL_HLCDC_AYUV_MODE ATMEL_HLCDC_YUV_MODE(0)
|
|
#define ATMEL_HLCDC_YUYV_MODE ATMEL_HLCDC_YUV_MODE(1)
|
|
#define ATMEL_HLCDC_UYVY_MODE ATMEL_HLCDC_YUV_MODE(2)
|
|
#define ATMEL_HLCDC_YVYU_MODE ATMEL_HLCDC_YUV_MODE(3)
|
|
#define ATMEL_HLCDC_VYUY_MODE ATMEL_HLCDC_YUV_MODE(4)
|
|
#define ATMEL_HLCDC_NV61_MODE ATMEL_HLCDC_YUV_MODE(5)
|
|
#define ATMEL_HLCDC_YUV422_MODE ATMEL_HLCDC_YUV_MODE(6)
|
|
#define ATMEL_HLCDC_NV21_MODE ATMEL_HLCDC_YUV_MODE(7)
|
|
#define ATMEL_HLCDC_YUV420_MODE ATMEL_HLCDC_YUV_MODE(8)
|
|
|
|
#define ATMEL_HLCDC_LAYER_POS(x, y) ((x) | ((y) << 16))
|
|
#define ATMEL_HLCDC_LAYER_SIZE(w, h) (((w) - 1) | (((h) - 1) << 16))
|
|
|
|
#define ATMEL_HLCDC_LAYER_CRKEY BIT(0)
|
|
#define ATMEL_HLCDC_LAYER_INV BIT(1)
|
|
#define ATMEL_HLCDC_LAYER_ITER2BL BIT(2)
|
|
#define ATMEL_HLCDC_LAYER_ITER BIT(3)
|
|
#define ATMEL_HLCDC_LAYER_REVALPHA BIT(4)
|
|
#define ATMEL_HLCDC_LAYER_GAEN BIT(5)
|
|
#define ATMEL_HLCDC_LAYER_LAEN BIT(6)
|
|
#define ATMEL_HLCDC_LAYER_OVR BIT(7)
|
|
#define ATMEL_HLCDC_LAYER_DMA BIT(8)
|
|
#define ATMEL_HLCDC_LAYER_REP BIT(9)
|
|
#define ATMEL_HLCDC_LAYER_DSTKEY BIT(10)
|
|
#define ATMEL_HLCDC_LAYER_DISCEN BIT(11)
|
|
#define ATMEL_HLCDC_LAYER_GA_SHIFT 16
|
|
#define ATMEL_HLCDC_LAYER_GA_MASK \
|
|
GENMASK(23, ATMEL_HLCDC_LAYER_GA_SHIFT)
|
|
#define ATMEL_HLCDC_LAYER_GA(x) \
|
|
((x) << ATMEL_HLCDC_LAYER_GA_SHIFT)
|
|
|
|
#define ATMEL_HLCDC_LAYER_DISC_POS(x, y) ((x) | ((y) << 16))
|
|
#define ATMEL_HLCDC_LAYER_DISC_SIZE(w, h) (((w) - 1) | (((h) - 1) << 16))
|
|
|
|
#define ATMEL_HLCDC_LAYER_SCALER_FACTORS(x, y) ((x) | ((y) << 16))
|
|
#define ATMEL_HLCDC_LAYER_SCALER_ENABLE BIT(31)
|
|
|
|
#define ATMEL_HLCDC_LAYER_MAX_PLANES 3
|
|
|
|
#define ATMEL_HLCDC_DMA_CHANNEL_DSCR_RESERVED BIT(0)
|
|
#define ATMEL_HLCDC_DMA_CHANNEL_DSCR_LOADED BIT(1)
|
|
#define ATMEL_HLCDC_DMA_CHANNEL_DSCR_DONE BIT(2)
|
|
#define ATMEL_HLCDC_DMA_CHANNEL_DSCR_OVERRUN BIT(3)
|
|
|
|
#define ATMEL_HLCDC_MAX_LAYERS 6
|
|
|
|
/**
|
|
* Atmel HLCDC Layer registers layout structure
|
|
*
|
|
* Each HLCDC layer has its own register organization and a given register
|
|
* can be placed differently on 2 different layers depending on its
|
|
* capabilities.
|
|
* This structure stores common registers layout for a given layer and is
|
|
* used by HLCDC layer code to choose the appropriate register to write to
|
|
* or to read from.
|
|
*
|
|
* For all fields, a value of zero means "unsupported".
|
|
*
|
|
* See Atmel's datasheet for a detailled description of these registers.
|
|
*
|
|
* @xstride: xstride registers
|
|
* @pstride: pstride registers
|
|
* @pos: position register
|
|
* @size: displayed size register
|
|
* @memsize: memory size register
|
|
* @default_color: default color register
|
|
* @chroma_key: chroma key register
|
|
* @chroma_key_mask: chroma key mask register
|
|
* @general_config: general layer config register
|
|
* @sacler_config: scaler factors register
|
|
* @phicoeffs: X/Y PHI coefficient registers
|
|
* @disc_pos: discard area position register
|
|
* @disc_size: discard area size register
|
|
* @csc: color space conversion register
|
|
*/
|
|
struct atmel_hlcdc_layer_cfg_layout {
|
|
int xstride[ATMEL_HLCDC_LAYER_MAX_PLANES];
|
|
int pstride[ATMEL_HLCDC_LAYER_MAX_PLANES];
|
|
int pos;
|
|
int size;
|
|
int memsize;
|
|
int default_color;
|
|
int chroma_key;
|
|
int chroma_key_mask;
|
|
int general_config;
|
|
int scaler_config;
|
|
struct {
|
|
int x;
|
|
int y;
|
|
} phicoeffs;
|
|
int disc_pos;
|
|
int disc_size;
|
|
int csc;
|
|
};
|
|
|
|
/**
|
|
* Atmel HLCDC DMA descriptor structure
|
|
*
|
|
* This structure is used by the HLCDC DMA engine to schedule a DMA transfer.
|
|
*
|
|
* The structure fields must remain in this specific order, because they're
|
|
* used by the HLCDC DMA engine, which expect them in this order.
|
|
* HLCDC DMA descriptors must be aligned on 64 bits.
|
|
*
|
|
* @addr: buffer DMA address
|
|
* @ctrl: DMA transfer options
|
|
* @next: next DMA descriptor to fetch
|
|
* @self: descriptor DMA address
|
|
*/
|
|
struct atmel_hlcdc_dma_channel_dscr {
|
|
dma_addr_t addr;
|
|
u32 ctrl;
|
|
dma_addr_t next;
|
|
dma_addr_t self;
|
|
} __aligned(sizeof(u64));
|
|
|
|
/**
|
|
* Atmel HLCDC layer types
|
|
*/
|
|
enum atmel_hlcdc_layer_type {
|
|
ATMEL_HLCDC_NO_LAYER,
|
|
ATMEL_HLCDC_BASE_LAYER,
|
|
ATMEL_HLCDC_OVERLAY_LAYER,
|
|
ATMEL_HLCDC_CURSOR_LAYER,
|
|
ATMEL_HLCDC_PP_LAYER,
|
|
};
|
|
|
|
/**
|
|
* Atmel HLCDC Supported formats structure
|
|
*
|
|
* This structure list all the formats supported by a given layer.
|
|
*
|
|
* @nformats: number of supported formats
|
|
* @formats: supported formats
|
|
*/
|
|
struct atmel_hlcdc_formats {
|
|
int nformats;
|
|
u32 *formats;
|
|
};
|
|
|
|
/**
|
|
* Atmel HLCDC Layer description structure
|
|
*
|
|
* This structure describes the capabilities provided by a given layer.
|
|
*
|
|
* @name: layer name
|
|
* @type: layer type
|
|
* @id: layer id
|
|
* @regs_offset: offset of the layer registers from the HLCDC registers base
|
|
* @cfgs_offset: CFGX registers offset from the layer registers base
|
|
* @formats: supported formats
|
|
* @layout: config registers layout
|
|
* @max_width: maximum width supported by this layer (0 means unlimited)
|
|
* @max_height: maximum height supported by this layer (0 means unlimited)
|
|
*/
|
|
struct atmel_hlcdc_layer_desc {
|
|
const char *name;
|
|
enum atmel_hlcdc_layer_type type;
|
|
int id;
|
|
int regs_offset;
|
|
int cfgs_offset;
|
|
struct atmel_hlcdc_formats *formats;
|
|
struct atmel_hlcdc_layer_cfg_layout layout;
|
|
int max_width;
|
|
int max_height;
|
|
};
|
|
|
|
/**
|
|
* Atmel HLCDC Layer.
|
|
*
|
|
* A layer can be a DRM plane of a post processing layer used to render
|
|
* HLCDC composition into memory.
|
|
*
|
|
* @desc: layer description
|
|
* @regmap: pointer to the HLCDC regmap
|
|
*/
|
|
struct atmel_hlcdc_layer {
|
|
const struct atmel_hlcdc_layer_desc *desc;
|
|
struct regmap *regmap;
|
|
};
|
|
|
|
/**
|
|
* Atmel HLCDC Plane.
|
|
*
|
|
* @base: base DRM plane structure
|
|
* @layer: HLCDC layer structure
|
|
* @properties: pointer to the property definitions structure
|
|
*/
|
|
struct atmel_hlcdc_plane {
|
|
struct drm_plane base;
|
|
struct atmel_hlcdc_layer layer;
|
|
struct atmel_hlcdc_plane_properties *properties;
|
|
};
|
|
|
|
static inline struct atmel_hlcdc_plane *
|
|
drm_plane_to_atmel_hlcdc_plane(struct drm_plane *p)
|
|
{
|
|
return container_of(p, struct atmel_hlcdc_plane, base);
|
|
}
|
|
|
|
static inline struct atmel_hlcdc_plane *
|
|
atmel_hlcdc_layer_to_plane(struct atmel_hlcdc_layer *layer)
|
|
{
|
|
return container_of(layer, struct atmel_hlcdc_plane, layer);
|
|
}
|
|
|
|
/**
|
|
* Atmel HLCDC Display Controller description structure.
|
|
*
|
|
* This structure describes the HLCDC IP capabilities and depends on the
|
|
* HLCDC IP version (or Atmel SoC family).
|
|
*
|
|
* @min_width: minimum width supported by the Display Controller
|
|
* @min_height: minimum height supported by the Display Controller
|
|
* @max_width: maximum width supported by the Display Controller
|
|
* @max_height: maximum height supported by the Display Controller
|
|
* @max_spw: maximum vertical/horizontal pulse width
|
|
* @max_vpw: maximum vertical back/front porch width
|
|
* @max_hpw: maximum horizontal back/front porch width
|
|
* @conflicting_output_formats: true if RGBXXX output formats conflict with
|
|
* each other.
|
|
* @layers: a layer description table describing available layers
|
|
* @nlayers: layer description table size
|
|
*/
|
|
struct atmel_hlcdc_dc_desc {
|
|
int min_width;
|
|
int min_height;
|
|
int max_width;
|
|
int max_height;
|
|
int max_spw;
|
|
int max_vpw;
|
|
int max_hpw;
|
|
bool conflicting_output_formats;
|
|
const struct atmel_hlcdc_layer_desc *layers;
|
|
int nlayers;
|
|
};
|
|
|
|
/**
|
|
* Atmel HLCDC Plane properties.
|
|
*
|
|
* This structure stores plane property definitions.
|
|
*
|
|
* @alpha: alpha blending (or transparency) property
|
|
* @rotation: rotation property
|
|
*/
|
|
struct atmel_hlcdc_plane_properties {
|
|
struct drm_property *alpha;
|
|
};
|
|
|
|
/**
|
|
* Atmel HLCDC Display Controller.
|
|
*
|
|
* @desc: HLCDC Display Controller description
|
|
* @dscrpool: DMA coherent pool used to allocate DMA descriptors
|
|
* @hlcdc: pointer to the atmel_hlcdc structure provided by the MFD device
|
|
* @fbdev: framebuffer device attached to the Display Controller
|
|
* @crtc: CRTC provided by the display controller
|
|
* @planes: instantiated planes
|
|
* @layers: active HLCDC layers
|
|
* @wq: display controller workqueue
|
|
* @suspend: used to store the HLCDC state when entering suspend
|
|
* @commit: used for async commit handling
|
|
*/
|
|
struct atmel_hlcdc_dc {
|
|
const struct atmel_hlcdc_dc_desc *desc;
|
|
struct dma_pool *dscrpool;
|
|
struct atmel_hlcdc *hlcdc;
|
|
struct drm_fbdev_cma *fbdev;
|
|
struct drm_crtc *crtc;
|
|
struct atmel_hlcdc_layer *layers[ATMEL_HLCDC_MAX_LAYERS];
|
|
struct workqueue_struct *wq;
|
|
struct {
|
|
u32 imr;
|
|
struct drm_atomic_state *state;
|
|
} suspend;
|
|
struct {
|
|
wait_queue_head_t wait;
|
|
bool pending;
|
|
} commit;
|
|
};
|
|
|
|
extern struct atmel_hlcdc_formats atmel_hlcdc_plane_rgb_formats;
|
|
extern struct atmel_hlcdc_formats atmel_hlcdc_plane_rgb_and_yuv_formats;
|
|
|
|
static inline void atmel_hlcdc_layer_write_reg(struct atmel_hlcdc_layer *layer,
|
|
unsigned int reg, u32 val)
|
|
{
|
|
regmap_write(layer->regmap, layer->desc->regs_offset + reg, val);
|
|
}
|
|
|
|
static inline u32 atmel_hlcdc_layer_read_reg(struct atmel_hlcdc_layer *layer,
|
|
unsigned int reg)
|
|
{
|
|
u32 val;
|
|
|
|
regmap_read(layer->regmap, layer->desc->regs_offset + reg, &val);
|
|
|
|
return val;
|
|
}
|
|
|
|
static inline void atmel_hlcdc_layer_write_cfg(struct atmel_hlcdc_layer *layer,
|
|
unsigned int cfgid, u32 val)
|
|
{
|
|
atmel_hlcdc_layer_write_reg(layer,
|
|
layer->desc->cfgs_offset +
|
|
(cfgid * sizeof(u32)), val);
|
|
}
|
|
|
|
static inline u32 atmel_hlcdc_layer_read_cfg(struct atmel_hlcdc_layer *layer,
|
|
unsigned int cfgid)
|
|
{
|
|
return atmel_hlcdc_layer_read_reg(layer,
|
|
layer->desc->cfgs_offset +
|
|
(cfgid * sizeof(u32)));
|
|
}
|
|
|
|
static inline void atmel_hlcdc_layer_init(struct atmel_hlcdc_layer *layer,
|
|
const struct atmel_hlcdc_layer_desc *desc,
|
|
struct regmap *regmap)
|
|
{
|
|
layer->desc = desc;
|
|
layer->regmap = regmap;
|
|
}
|
|
|
|
enum drm_mode_status
|
|
atmel_hlcdc_dc_mode_valid(struct atmel_hlcdc_dc *dc,
|
|
const struct drm_display_mode *mode);
|
|
|
|
int atmel_hlcdc_create_planes(struct drm_device *dev);
|
|
void atmel_hlcdc_plane_irq(struct atmel_hlcdc_plane *plane);
|
|
|
|
int atmel_hlcdc_plane_prepare_disc_area(struct drm_crtc_state *c_state);
|
|
int atmel_hlcdc_plane_prepare_ahb_routing(struct drm_crtc_state *c_state);
|
|
|
|
void atmel_hlcdc_crtc_irq(struct drm_crtc *c);
|
|
|
|
int atmel_hlcdc_crtc_create(struct drm_device *dev);
|
|
|
|
int atmel_hlcdc_create_outputs(struct drm_device *dev);
|
|
|
|
#endif /* DRM_ATMEL_HLCDC_H */
|