drivers/char/drm/via_drv.h

   1 /*
   2  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24 #ifndef _VIA_DRV_H_
  25 #define _VIA_DRV_H_
  26
  27 #define DRIVER_AUTHOR   "VIA"
  28
  29 #define DRIVER_NAME             "via"
  30 #define DRIVER_DESC             "VIA Unichrome / Pro"
  31 #define DRIVER_DATE             "20050523"
  32
  33 #define DRIVER_MAJOR            2
  34 #define DRIVER_MINOR            6
  35 #define DRIVER_PATCHLEVEL       3
  36
  37 #include "via_verifier.h"
  38
  39 #define VIA_PCI_BUF_SIZE 60000
  40 #define VIA_FIRE_BUF_SIZE  1024
  41 #define VIA_NUM_IRQS 2
  42
  43 typedef struct drm_via_ring_buffer {
  44         drm_map_t map;
  45         char *virtual_start;
  46 } drm_via_ring_buffer_t;
  47
  48 typedef uint32_t maskarray_t[5];
  49
  50 typedef struct drm_via_irq {
  51         atomic_t irq_received;
  52         uint32_t pending_mask;
  53         uint32_t enable_mask;
  54         wait_queue_head_t irq_queue;
  55 } drm_via_irq_t;
  56
  57 typedef struct drm_via_private {
  58         drm_via_sarea_t *sarea_priv;
  59         drm_map_t *sarea;
  60         drm_map_t *fb;
  61         drm_map_t *mmio;
  62         unsigned long agpAddr;
  63         wait_queue_head_t decoder_queue[VIA_NR_XVMC_LOCKS];
  64         char *dma_ptr;
  65         unsigned int dma_low;
  66         unsigned int dma_high;
  67         unsigned int dma_offset;
  68         uint32_t dma_wrap;
  69         volatile uint32_t *last_pause_ptr;
  70         volatile uint32_t *hw_addr_ptr;
  71         drm_via_ring_buffer_t ring;
  72         struct timeval last_vblank;
  73         int last_vblank_valid;
  74         unsigned usec_per_vblank;
  75         drm_via_state_t hc_state;
  76         char pci_buf[VIA_PCI_BUF_SIZE];
  77         const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
  78         uint32_t num_fire_offsets;
  79         int pro_group_a;
  80         drm_via_irq_t via_irqs[VIA_NUM_IRQS];
  81         unsigned num_irqs;
  82         maskarray_t *irq_masks;
  83         uint32_t irq_enable_mask;
  84         uint32_t irq_pending_mask;
  85 } drm_via_private_t;
  86
  87 /* VIA MMIO register access */
  88 #define VIA_BASE ((dev_priv->mmio))
  89
  90 #define VIA_READ(reg)           DRM_READ32(VIA_BASE, reg)
  91 #define VIA_WRITE(reg,val)      DRM_WRITE32(VIA_BASE, reg, val)
  92 #define VIA_READ8(reg)          DRM_READ8(VIA_BASE, reg)
  93 #define VIA_WRITE8(reg,val)     DRM_WRITE8(VIA_BASE, reg, val)
  94
  95 extern int via_init_context(drm_device_t * dev, int context);
  96 extern int via_final_context(drm_device_t * dev, int context);
  97
  98 extern int via_do_cleanup_map(drm_device_t * dev);
  99 extern int via_map_init(struct inode *inode, struct file *filp,
 100                         unsigned int cmd, unsigned long arg);
 101 extern int via_driver_vblank_wait(drm_device_t * dev, unsigned int *sequence);
 102
 103 extern irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS);
 104 extern void via_driver_irq_preinstall(drm_device_t * dev);
 105 extern void via_driver_irq_postinstall(drm_device_t * dev);
 106 extern void via_driver_irq_uninstall(drm_device_t * dev);
 107
 108 extern int via_dma_cleanup(drm_device_t * dev);
 109 extern void via_init_command_verifier(void);
 110 extern int via_driver_dma_quiescent(drm_device_t * dev);
 111 extern void via_init_futex(drm_via_private_t * dev_priv);
 112 extern void via_cleanup_futex(drm_via_private_t * dev_priv);
 113 extern void via_release_futex(drm_via_private_t * dev_priv, int context);
 114
 115 extern int via_parse_command_stream(drm_device_t * dev, const uint32_t * buf,
 116                                     unsigned int size);
 117
 118 #endif