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/* Smedia Glamo 336x/337x DRM private bits
*
* Copyright (C) 2008-2009 Thomas White <taw@bitwiz.org.uk>
* Copyright (C) 2009 Andreas Pokorny <andreas.pokorny@gmail.com>
* Based on xf86-video-glamo
* Copyright 2007 OpenMoko, Inc.
* Copyright © 2009 Lars-Peter Clausen <lars@metafoo.de>
*
* All rights reserved.
*
* 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.
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __GLAMO_DRMPRIV_H
#define __GLAMO_DRMPRIV_H
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/semaphore.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
#include "glamo-core.h"
/* Memory to allocate for the framebuffer.
* The rest is reserved for the DRM memory manager */
#define GLAMO_FRAMEBUFFER_ALLOCATION (2*480*640)
struct glamodrm_handle {
/* This device */
struct device *dev;
/* The parent device handle */
struct glamo_core *glamo_core;
/* Framebuffer handle for the console (i.e. /dev/fb0) */
struct fb_info *fb;
/* Command queue registers */
struct resource *reg;
char __iomem *reg_base;
/* VRAM region */
struct resource *vram;
/* Command queue region */
struct resource *cmdq;
char __iomem *cmdq_base;
/* LCD controller registers */
struct resource *lcd_regs;
char __iomem *lcd_base;
/* 2D engine registers */
struct resource *twod_regs;
char __iomem *twod_base;
ssize_t vram_size;
/* Memory management */
struct drm_mm *mmgr;
/* semaphore against concurrent ioctl */
struct semaphore add_to_ring;
/* Saved state */
u_int16_t saved_clock;
u_int16_t saved_width;
u_int16_t saved_height;
u_int16_t saved_pitch;
u_int16_t saved_htotal;
u_int16_t saved_hrtrst;
u_int16_t saved_hrtren;
u_int16_t saved_hdspst;
u_int16_t saved_hdspen;
u_int16_t saved_vtotal;
u_int16_t saved_vrtrst;
u_int16_t saved_vrtren;
u_int16_t saved_vdspst;
u_int16_t saved_vdspen;
/* Fencing */
atomic_t curr_seq; /* The last used stamp number */
struct list_head fence_list; /* List of active fences */
rwlock_t fence_list_lock; /* Lock to protect fence_list */
wait_queue_head_t fence_queue; /* Waitqueue */
struct tasklet_struct fence_tl; /* Tasklet for fence IRQ */
/* A scratch block */
struct drm_mm_node *scratch;
};
/* Private data. This is where we keep our memory management bits */
struct drm_glamo_gem_object {
struct drm_gem_object *obj; /* The GEM object this refers to */
struct drm_mm_node *block; /* Block handle for drm_mm */
uint64_t mmap_offset;
};
struct glamo_crtc {
struct drm_crtc base;
struct glamodrm_handle *gdrm;
/* a mode_set for fbdev users on this crtc */
struct drm_mode_set mode_set;
int blank_mode;
};
struct glamo_framebuffer {
struct drm_framebuffer base;
struct drm_gem_object *obj;
};
struct glamo_output {
struct drm_connector base;
struct drm_encoder enc;
struct glamodrm_handle *gdrm;
};
/* Colour mode for KMS framebuffer */
enum {
GLAMO_FB_RGB565,
GLAMO_FB_ARGB1555,
GLAMO_FB_ARGB4444
};
#define to_glamo_crtc(x) container_of(x, struct glamo_crtc, base)
#define to_glamo_output(x) container_of(x, struct glamo_output, base)
#define enc_to_glamo_output(x) container_of(x, struct glamo_output, enc)
#define to_glamo_framebuffer(x) container_of(x, struct glamo_framebuffer, base)
#endif /* __GLAMO_DRMPRIV_H */
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