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Diffstat (limited to 'src/savage_common.h')
| -rw-r--r-- | src/savage_common.h | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/src/savage_common.h b/src/savage_common.h new file mode 100644 index 0000000..9dbd3cb --- /dev/null +++ b/src/savage_common.h @@ -0,0 +1,177 @@ +/* savage_common.h -- Public header for the savage driver (IOCTLs) + * + * Copyright 2004 Felix Kuehling + * 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 __SAVAGE_COMMON_H__ +#define __SAVAGE_COMMON_H__ + +#include <inttypes.h> + +/* Savage-specific ioctls + */ +#define DRM_SAVAGE_BCI_INIT 0x00 +#define DRM_SAVAGE_BCI_CMDBUF 0x01 +#define DRM_SAVAGE_BCI_EVENT_EMIT 0x02 +#define DRM_SAVAGE_BCI_EVENT_WAIT 0x03 + +#define SAVAGE_DMA_PCI 1 +#define SAVAGE_DMA_AGP 3 +typedef struct { + enum { + SAVAGE_INIT_BCI = 1, + SAVAGE_CLEANUP_BCI = 2 + } func; + unsigned int sarea_priv_offset; + + /* some parameters */ + unsigned int cob_size; + unsigned int bci_threshold_lo, bci_threshold_hi; + unsigned int dma_type; + + /* frame buffer layout */ + unsigned int fb_bpp; + unsigned int front_offset, front_pitch; + unsigned int back_offset, back_pitch; + unsigned int depth_bpp; + unsigned int depth_offset, depth_pitch; + + /* local textures */ + unsigned int texture_offset; + unsigned int texture_size; + + /* physical locations of non-permanent maps */ + unsigned long status_offset; + unsigned long buffers_offset; + unsigned long agp_textures_offset; + unsigned long cmd_dma_offset; +} drmSAVAGEInit; + +typedef union drmSAVAGECmdHeader drmSAVAGECmdHeader; +typedef struct { + /* command buffer in client's address space */ + drmSAVAGECmdHeader *cmd_addr; + unsigned int size; /* size of the command buffer in 64bit units */ + + unsigned int dma_idx; /* DMA buffer index to use */ + int discard; /* discard DMA buffer when done */ + /* vertex buffer in client's address space */ + unsigned int *vb_addr; + unsigned int vb_size; /* size of client vertex buffer in bytes */ + unsigned int vb_stride; /* stride of vertices in 32bit words */ + /* boxes in client's address space */ + drm_clip_rect_t *box_addr; + unsigned int nbox; /* number of clipping boxes */ +} drmSAVAGECmdbuf; + +#define SAVAGE_WAIT_2D 0x1 /* wait for 2D idle before updating event tag */ +#define SAVAGE_WAIT_3D 0x2 /* wait for 3D idle before updating event tag */ +#define SAVAGE_WAIT_IRQ 0x4 /* emit or wait for IRQ, not implemented yet */ +typedef struct { + unsigned int count; + unsigned int flags; +} drmSAVAGEEventEmit, drmSAVAGEEventWait; + +/* Commands for the cmdbuf ioctl + */ +#define SAVAGE_CMD_STATE 0 /* a range of state registers */ +#define SAVAGE_CMD_DMA_PRIM 1 /* vertices from DMA buffer */ +#define SAVAGE_CMD_VTX_PRIM 2 /* vertices from client vertex buffer */ +#define SAVAGE_CMD_DMA_IDX 3 /* indexed vertices from DMA buffer */ +#define SAVAGE_CMD_VTX_IDX 4 /* indexed vertices client vertex buffer */ +#define SAVAGE_CMD_CLEAR 5 /* clear buffers */ +#define SAVAGE_CMD_SWAP 6 /* swap buffers */ + +/* Primitive types +*/ +#define SAVAGE_PRIM_TRILIST 0 /* triangle list */ +#define SAVAGE_PRIM_TRISTRIP 1 /* triangle strip */ +#define SAVAGE_PRIM_TRIFAN 2 /* triangle fan */ +#define SAVAGE_PRIM_TRILIST_201 3 /* reorder verts for correct flat + * shading on s3d */ + +/* Skip flags (vertex format) + */ +#define SAVAGE_SKIP_Z 0x01 +#define SAVAGE_SKIP_W 0x02 +#define SAVAGE_SKIP_C0 0x04 +#define SAVAGE_SKIP_C1 0x08 +#define SAVAGE_SKIP_S0 0x10 +#define SAVAGE_SKIP_T0 0x20 +#define SAVAGE_SKIP_ST0 0x30 +#define SAVAGE_SKIP_S1 0x40 +#define SAVAGE_SKIP_T1 0x80 +#define SAVAGE_SKIP_ST1 0xc0 +#define SAVAGE_SKIP_ALL_S3D 0x3f +#define SAVAGE_SKIP_ALL_S4 0xff + +/* Buffer names for clear command + */ +#define SAVAGE_FRONT 0x1 +#define SAVAGE_BACK 0x2 +#define SAVAGE_DEPTH 0x4 + +/* 64-bit command header + */ +union drmSAVAGECmdHeader { + struct { + unsigned char cmd; /* command */ + unsigned char pad0; + unsigned short pad1; + unsigned short pad2; + unsigned short pad3; + } cmd; /* generic */ + struct { + unsigned char cmd; + unsigned char global; /* need idle engine? */ + unsigned short count; /* number of consecutive registers */ + unsigned short start; /* first register */ + unsigned short pad3; + } state; /* SAVAGE_CMD_STATE */ + struct { + unsigned char cmd; + unsigned char prim; /* primitive type */ + unsigned short skip; /* vertex format (skip flags) */ + unsigned short count; /* number of vertices */ + unsigned short start; /* first vertex in DMA/vertex buffer */ + } prim; /* SAVAGE_CMD_DMA_PRIM, SAVAGE_CMD_VB_PRIM */ + struct { + unsigned char cmd; + unsigned char prim; + unsigned short skip; + unsigned short count; /* number of indices that follow */ + unsigned short pad3; + } idx; /* SAVAGE_CMD_DMA_IDX, SAVAGE_CMD_VB_IDX */ + struct { + unsigned char cmd; + unsigned char pad0; + unsigned short pad1; + unsigned int flags; + } clear0; /* SAVAGE_CMD_CLEAR */ + struct { + unsigned int mask; + unsigned int value; + } clear1; /* SAVAGE_CMD_CLEAR data */ +}; + +#endif /* __SAVAGE_COMMON_H__ */ |