text: /*
   * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
   * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sub license,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the
   * next paragraph) shall be included in all copies or substantial portions
   * of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
   * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
   * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
   * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   * DEALINGS IN THE SOFTWARE.
   */
  #ifndef _VIA_DRV_H_
  #define _VIA_DRV_H_
  
  #include <drm/drm_mm.h>
  #define DRIVER_AUTHOR	"Various"
  
  #define DRIVER_NAME		"via"
  #define DRIVER_DESC		"VIA Unichrome / Pro"
  #define DRIVER_DATE		"20070202"
  
  #define DRIVER_MAJOR		2
  #define DRIVER_MINOR		11
  #define DRIVER_PATCHLEVEL	1
  
  #include "via_verifier.h"
  
  #include "via_dmablit.h"
  
  #define VIA_PCI_BUF_SIZE 60000
  #define VIA_FIRE_BUF_SIZE  1024
  #define VIA_NUM_IRQS 4
  
  typedef struct drm_via_ring_buffer {
  	drm_local_map_t map;
  	char *virtual_start;
  } drm_via_ring_buffer_t;
  
  typedef uint32_t maskarray_t[5];
  
  typedef struct drm_via_irq {
  	atomic_t irq_received;
  	uint32_t pending_mask;
  	uint32_t enable_mask;
  	wait_queue_head_t irq_queue;
  } drm_via_irq_t;
  
  typedef struct drm_via_private {
  	drm_via_sarea_t *sarea_priv;
  	drm_local_map_t *sarea;
  	drm_local_map_t *fb;
  	drm_local_map_t *mmio;
  	unsigned long agpAddr;
  	wait_queue_head_t decoder_queue[VIA_NR_XVMC_LOCKS];
  	char *dma_ptr;
  	unsigned int dma_low;
  	unsigned int dma_high;
  	unsigned int dma_offset;
  	uint32_t dma_wrap;
  	volatile uint32_t *last_pause_ptr;
  	volatile uint32_t *hw_addr_ptr;
  	drm_via_ring_buffer_t ring;
  	struct timeval last_vblank;
  	int last_vblank_valid;
  	unsigned usec_per_vblank;
  	atomic_t vbl_received;
  	drm_via_state_t hc_state;
  	char pci_buf[VIA_PCI_BUF_SIZE];
  	const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
  	uint32_t num_fire_offsets;
  	int chipset;
  	drm_via_irq_t via_irqs[VIA_NUM_IRQS];
  	unsigned num_irqs;
  	maskarray_t *irq_masks;
  	uint32_t irq_enable_mask;
  	uint32_t irq_pending_mask;
  	int *irq_map;
  	unsigned int idle_fault;
  	int vram_initialized;
  	struct drm_mm vram_mm;
  	int agp_initialized;
  	struct drm_mm agp_mm;
  	/** Mapping of userspace keys to mm objects */
  	struct idr object_idr;
  	unsigned long vram_offset;
  	unsigned long agp_offset;
  	drm_via_blitq_t blit_queues[VIA_NUM_BLIT_ENGINES];
  	uint32_t dma_diff;
  } drm_via_private_t;
  
  enum via_family {
    VIA_OTHER = 0,     /* Baseline */
    VIA_PRO_GROUP_A,   /* Another video engine and DMA commands */
    VIA_DX9_0          /* Same video as pro_group_a, but 3D is unsupported */
  };
  
  /* VIA MMIO register access */
  #define VIA_BASE ((dev_priv->mmio))
  
  #define VIA_READ(reg)		DRM_READ32(VIA_BASE, reg)
  #define VIA_WRITE(reg, val)	DRM_WRITE32(VIA_BASE, reg, val)
  #define VIA_READ8(reg)		DRM_READ8(VIA_BASE, reg)
  #define VIA_WRITE8(reg, val)	DRM_WRITE8(VIA_BASE, reg, val)
  
  extern const struct drm_ioctl_desc via_ioctls[];
  extern int via_max_ioctl;
  
  extern int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
  extern int via_mem_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv);
  extern int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv);
  extern int via_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
  extern int via_map_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
  extern int via_decoder_futex(struct drm_device *dev, void *data, struct drm_file *file_priv);
  extern int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv);
  extern int via_dma_blit_sync(struct drm_device *dev, void *data, struct drm_file *file_priv);
  extern int via_dma_blit(struct drm_device *dev, void *data, struct drm_file *file_priv);
  
  extern int via_driver_load(struct drm_device *dev, unsigned long chipset);
  extern int via_driver_unload(struct drm_device *dev);
  
  extern int via_init_context(struct drm_device *dev, int context);
  extern int via_final_context(struct drm_device *dev, int context);
  
  extern int via_do_cleanup_map(struct drm_device *dev);
  extern u32 via_get_vblank_counter(struct drm_device *dev, int crtc);
  extern int via_enable_vblank(struct drm_device *dev, int crtc);
  extern void via_disable_vblank(struct drm_device *dev, int crtc);
  
  extern irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS);
  extern void via_driver_irq_preinstall(struct drm_device *dev);
  extern int via_driver_irq_postinstall(struct drm_device *dev);
  extern void via_driver_irq_uninstall(struct drm_device *dev);
  
  extern int via_dma_cleanup(struct drm_device *dev);
  extern void via_init_command_verifier(void);
  extern int via_driver_dma_quiescent(struct drm_device *dev);
  extern void via_init_futex(drm_via_private_t *dev_priv);
  extern void via_cleanup_futex(drm_via_private_t *dev_priv);
  extern void via_release_futex(drm_via_private_t *dev_priv, int context);
  
  extern void via_reclaim_buffers_locked(struct drm_device *dev,
  				       struct drm_file *file_priv);
  extern void via_lastclose(struct drm_device *dev);
  
  extern void via_dmablit_handler(struct drm_device *dev, int engine, int from_irq);
  extern void via_init_dmablit(struct drm_device *dev);
  
  #endif
  