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Diffstat (limited to 'omap5/sgx_src/eurasia_km/services4/3rdparty/dc_nohw/dc_nohw.h')
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diff --git a/omap5/sgx_src/eurasia_km/services4/3rdparty/dc_nohw/dc_nohw.h b/omap5/sgx_src/eurasia_km/services4/3rdparty/dc_nohw/dc_nohw.h
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1/*************************************************************************/ /*!
2@Title Dummy 3rd party display driver structures and prototypes
3@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
4@License Dual MIT/GPLv2
5
6The contents of this file are subject to the MIT license as set out below.
7
8Permission is hereby granted, free of charge, to any person obtaining a copy
9of this software and associated documentation files (the "Software"), to deal
10in the Software without restriction, including without limitation the rights
11to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12copies of the Software, and to permit persons to whom the Software is
13furnished to do so, subject to the following conditions:
14
15The above copyright notice and this permission notice shall be included in
16all copies or substantial portions of the Software.
17
18Alternatively, the contents of this file may be used under the terms of
19the GNU General Public License Version 2 ("GPL") in which case the provisions
20of GPL are applicable instead of those above.
21
22If you wish to allow use of your version of this file only under the terms of
23GPL, and not to allow others to use your version of this file under the terms
24of the MIT license, indicate your decision by deleting the provisions above
25and replace them with the notice and other provisions required by GPL as set
26out in the file called "GPL-COPYING" included in this distribution. If you do
27not delete the provisions above, a recipient may use your version of this file
28under the terms of either the MIT license or GPL.
29
30This License is also included in this distribution in the file called
31"MIT-COPYING".
32
33EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
34PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
35BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
36PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
37COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
38IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
39CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
40*/ /**************************************************************************/
41
42/**************************************************************************
43 The 3rd party driver is a specification of an API to integrate the
44 IMG PowerVR Services driver with 3rd Party display hardware.
45 It is NOT a specification for a display controller driver, rather a
46 specification to extend the API for a pre-existing driver for the display hardware.
47
48 The 3rd party driver interface provides IMG PowerVR client drivers (e.g. PVR2D)
49 with an API abstraction of the system's underlying display hardware, allowing
50 the client drivers to indirectly control the display hardware and access its
51 associated memory.
52
53 Functions of the API include
54
55 - query primary surface attributes (width, height, stride, pixel format,
56 CPU physical and virtual address)
57 - swap/flip chain creation and subsequent query of surface attributes
58 - asynchronous display surface flipping, taking account of asynchronous
59 read (flip) and write (render) operations to the display surface
60
61 Note: having queried surface attributes the client drivers are able to map
62 the display memory to any IMG PowerVR Services device by calling
63 PVRSRVMapDeviceClassMemory with the display surface handle.
64
65 This code is intended to be an example of how a pre-existing display driver
66 may be extended to support the 3rd Party Display interface to
67 PowerVR Services - IMG is not providing a display driver implementation
68 **************************************************************************/
69
70#ifndef __DC_NOHW_H__
71#define __DC_NOHW_H__
72
73
74#if defined(__cplusplus)
75extern "C" {
76#endif
77
78#if defined(USE_BASE_VIDEO_FRAMEBUFFER)
79#if defined (ENABLE_DISPLAY_MODE_TRACKING)
80#error Cannot have both USE_BASE_VIDEO_FRAMEBUFFER and ENABLE_DISPLAY_MODE_TRACKING defined
81#endif
82#endif
83
84#if !defined(DC_NOHW_BUFFER_WIDTH) && !defined(DC_NOHW_BUFFER_HEIGHT)
85/* Default buffer size */
86#define DC_NOHW_BUFFER_WIDTH 320
87#define DC_NOHW_BUFFER_HEIGHT 240
88#endif
89
90#define DC_NOHW_BUFFER_BIT_DEPTH 32
91#define DC_NOHW_BUFFER_PIXEL_FORMAT PVRSRV_PIXEL_FORMAT_ARGB8888
92
93#define DC_NOHW_DEPTH_BITS_PER_BYTE 8
94
95#define dc_nohw_byte_depth_from_bit_depth(bit_depth) (((IMG_UINT32)(bit_depth) + DC_NOHW_DEPTH_BITS_PER_BYTE - 1)/DC_NOHW_DEPTH_BITS_PER_BYTE)
96#define dc_nohw_bit_depth_from_byte_depth(byte_depth) ((IMG_UINT32)(byte_depth) * DC_NOHW_DEPTH_BITS_PER_BYTE)
97#define dc_nohw_roundup_bit_depth(bd) dc_nohw_bit_depth_from_byte_depth(dc_nohw_byte_depth_from_bit_depth(bd))
98
99#define dc_nohw_byte_stride(width, bit_depth) ((IMG_UINT32)(width) * dc_nohw_byte_depth_from_bit_depth(bit_depth))
100
101#if defined(DC_NOHW_GET_BUFFER_DIMENSIONS)
102IMG_BOOL GetBufferDimensions(IMG_UINT32 *pui32Width, IMG_UINT32 *pui32Height, PVRSRV_PIXEL_FORMAT *pePixelFormat, IMG_UINT32 *pui32Stride);
103#else
104#define DC_NOHW_BUFFER_BYTE_STRIDE dc_nohw_byte_stride(DC_NOHW_BUFFER_WIDTH, DC_NOHW_BUFFER_BIT_DEPTH)
105#endif
106
107extern IMG_BOOL IMG_IMPORT PVRGetDisplayClassJTable(PVRSRV_DC_DISP2SRV_KMJTABLE *psJTable);
108
109#define DC_NOHW_MAXFORMATS (1)
110#define DC_NOHW_MAXDIMS (1)
111#define DC_NOHW_MAX_BACKBUFFERS (3)
112
113
114typedef void * DC_HANDLE;
115
116typedef struct DC_NOHW_BUFFER_TAG
117{
118 DC_HANDLE hSwapChain;
119 DC_HANDLE hMemChunk;
120
121 /* member using IMG structures to minimise API function code */
122 /* replace with own structures where necessary */
123#if defined(DC_NOHW_DISCONTIG_BUFFERS)
124 IMG_SYS_PHYADDR *psSysAddr;
125#else
126 IMG_SYS_PHYADDR sSysAddr;
127#endif
128 IMG_DEV_VIRTADDR sDevVAddr;
129 IMG_CPU_VIRTADDR sCPUVAddr;
130 PVRSRV_SYNC_DATA* psSyncData;
131
132 struct DC_NOHW_BUFFER_TAG *psNext;
133} DC_NOHW_BUFFER;
134
135
136/* DC_NOHW buffer structure */
137typedef struct DC_NOHW_SWAPCHAIN_TAG
138{
139 unsigned long ulBufferCount;
140 DC_NOHW_BUFFER *psBuffer;
141} DC_NOHW_SWAPCHAIN;
142
143
144/* kernel device information structure */
145typedef struct DC_NOHW_DEVINFO_TAG
146{
147 unsigned int uiDeviceID;
148
149 /* system surface info */
150 DC_NOHW_BUFFER sSystemBuffer;
151
152 /* number of supported display formats */
153 unsigned long ulNumFormats;
154
155 /* number of supported display dims */
156 unsigned long ulNumDims;
157
158 /* jump table into PVR services */
159 PVRSRV_DC_DISP2SRV_KMJTABLE sPVRJTable;
160
161 /* jump table into DC */
162 PVRSRV_DC_SRV2DISP_KMJTABLE sDCJTable;
163
164 /*
165 handle for connection to kernel services
166 - OS specific - may not be required
167 */
168 DC_HANDLE hPVRServices;
169
170 /* back buffer info */
171 DC_NOHW_BUFFER asBackBuffers[DC_NOHW_MAX_BACKBUFFERS];
172
173 /* ref count */
174 unsigned long ulRefCount;
175
176 DC_NOHW_SWAPCHAIN *psSwapChain;
177
178 /* member using IMG structures to minimise API function code */
179 /* replace with own structures where necessary */
180 DISPLAY_INFO sDisplayInfo;
181
182 /* system surface info */
183 DISPLAY_FORMAT sSysFormat;
184 DISPLAY_DIMS sSysDims;
185 IMG_UINT32 ui32BufferSize;
186
187 /* list of supported display formats */
188 DISPLAY_FORMAT asDisplayFormatList[DC_NOHW_MAXFORMATS];
189
190 /* list of supported display formats */
191 DISPLAY_DIMS asDisplayDimList[DC_NOHW_MAXDIMS];
192
193 /* back buffer info */
194 DISPLAY_FORMAT sBackBufferFormat[DC_NOHW_MAXFORMATS];
195
196} DC_NOHW_DEVINFO;
197
198
199/*!
200 *****************************************************************************
201 * Error values
202 *****************************************************************************/
203typedef enum _DC_ERROR_
204{
205 DC_OK = 0,
206 DC_ERROR_GENERIC = 1,
207 DC_ERROR_OUT_OF_MEMORY = 2,
208 DC_ERROR_TOO_FEW_BUFFERS = 3,
209 DC_ERROR_INVALID_PARAMS = 4,
210 DC_ERROR_INIT_FAILURE = 5,
211 DC_ERROR_CANT_REGISTER_CALLBACK = 6,
212 DC_ERROR_INVALID_DEVICE = 7,
213 DC_ERROR_DEVICE_REGISTER_FAILED = 8
214} DC_ERROR;
215
216
217#ifndef UNREFERENCED_PARAMETER
218#define UNREFERENCED_PARAMETER(param) (param) = (param)
219#endif
220
221DC_ERROR Init(void);
222DC_ERROR Deinit(void);
223
224#if defined(USE_BASE_VIDEO_FRAMEBUFFER) || defined (ENABLE_DISPLAY_MODE_TRACKING)
225DC_ERROR OpenMiniport(void);
226DC_ERROR CloseMiniport(void);
227#endif /* #if defined(USE_BASE_VIDEO_FRAMEBUFFER) || defined (ENABLE_DISPLAY_MODE_TRACKING) */
228
229#if defined(USE_BASE_VIDEO_FRAMEBUFFER)
230PVRSRV_ERROR SetupDevInfo (DC_NOHW_DEVINFO *psDevInfo);
231PVRSRV_ERROR FreeBackBuffers (DC_NOHW_DEVINFO *psDevInfo);
232#endif
233
234#if defined (ENABLE_DISPLAY_MODE_TRACKING)
235DC_ERROR Shadow_Desktop_Resolution(DC_NOHW_DEVINFO *psDevInfo);
236#endif /* #if defined (ENABLE_DISPLAY_MODE_TRACKING) */
237
238#if !defined(DC_NOHW_DISCONTIG_BUFFERS) && !defined(USE_BASE_VIDEO_FRAMEBUFFER)
239IMG_SYS_PHYADDR CpuPAddrToSysPAddr(IMG_CPU_PHYADDR cpu_paddr);
240IMG_CPU_PHYADDR SysPAddrToCpuPAddr(IMG_SYS_PHYADDR sys_paddr);
241#endif
242
243/* OS Specific APIs */
244DC_ERROR OpenPVRServices (DC_HANDLE *phPVRServices);
245DC_ERROR ClosePVRServices (DC_HANDLE hPVRServices);
246
247#if defined(DC_NOHW_DISCONTIG_BUFFERS)
248DC_ERROR AllocDiscontigMemory(unsigned long ulSize,
249 DC_HANDLE * phMemChunk,
250 IMG_CPU_VIRTADDR *pLinAddr,
251 IMG_SYS_PHYADDR **pPhysAddr);
252
253void FreeDiscontigMemory(unsigned long ulSize,
254 DC_HANDLE hMemChunk,
255 IMG_CPU_VIRTADDR LinAddr,
256 IMG_SYS_PHYADDR *pPhysAddr);
257#else
258
259
260
261DC_ERROR AllocContigMemory(unsigned long ulSize,
262 DC_HANDLE * phMemHandle,
263 IMG_CPU_VIRTADDR *pLinAddr,
264 IMG_CPU_PHYADDR *pPhysAddr);
265
266void FreeContigMemory(unsigned long ulSize,
267 DC_HANDLE hMemChunk,
268 IMG_CPU_VIRTADDR LinAddr,
269 IMG_CPU_PHYADDR PhysAddr);
270
271
272#endif
273
274void *AllocKernelMem(unsigned long ulSize);
275void FreeKernelMem (void *pvMem);
276
277DC_ERROR GetLibFuncAddr (DC_HANDLE hExtDrv, char *szFunctionName, PFN_DC_GET_PVRJTABLE *ppfnFuncTable);
278
279#if defined(__cplusplus)
280}
281#endif
282
283#endif /* __DC_NOHW_H__ */
284
285/******************************************************************************
286 End of file (dc_nohw.h)
287******************************************************************************/
288