hdlcd.hh (9939:735d73e394d3) hdlcd.hh (10839:10cac0f0f419)
1/*
1/*
2 * Copyright (c) 2010-2013 ARM Limited
2 * Copyright (c) 2010-2013, 2015 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated

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78 * specification is referenced for the different Versatile Express tiles.
79 * This implementation uses the larger 2 KB buffer by default.
80 */
81
82#ifndef __DEV_ARM_HDLCD_HH__
83#define __DEV_ARM_HDLCD_HH__
84
85#include <fstream>
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated

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78 * specification is referenced for the different Versatile Express tiles.
79 * This implementation uses the larger 2 KB buffer by default.
80 */
81
82#ifndef __DEV_ARM_HDLCD_HH__
83#define __DEV_ARM_HDLCD_HH__
84
85#include <fstream>
86#include <memory>
86
87
88#include "base/bitmap.hh"
89#include "base/framebuffer.hh"
87#include "dev/arm/amba_device.hh"
88#include "params/HDLcd.hh"
89#include "sim/serialize.hh"
90
91class VncInput;
90#include "dev/arm/amba_device.hh"
91#include "params/HDLcd.hh"
92#include "sim/serialize.hh"
93
94class VncInput;
92class Bitmap;
93
94class HDLcd: public AmbaDmaDevice
95{
96 protected:
97 /** fake AMBA ID -- unused */
98 static const uint64_t AMBA_ID = ULL(0xb105f00d00141000);
99
100 /** ARM HDLcd register offsets */

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137 static const size_t MAX_BURST_LEN = 16;
138
139 /** size of internal buffer in bytes */
140 static const size_t PIXEL_BUFFER_CAPACITY = 2048;
141
142 /** AXI port width in bytes */
143 static const size_t AXI_PORT_WIDTH = 8;
144
95
96class HDLcd: public AmbaDmaDevice
97{
98 protected:
99 /** fake AMBA ID -- unused */
100 static const uint64_t AMBA_ID = ULL(0xb105f00d00141000);
101
102 /** ARM HDLcd register offsets */

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139 static const size_t MAX_BURST_LEN = 16;
140
141 /** size of internal buffer in bytes */
142 static const size_t PIXEL_BUFFER_CAPACITY = 2048;
143
144 /** AXI port width in bytes */
145 static const size_t AXI_PORT_WIDTH = 8;
146
147 static const size_t MAX_BURST_SIZE = MAX_BURST_LEN * AXI_PORT_WIDTH;
148
145 /**
146 * @name RegisterFieldLayouts
147 * Bit layout declarations for multi-field registers.
148 */
149 /**@{*/
150 BitUnion32(VersionReg)
151 Bitfield<7,0> version_minor;
152 Bitfield<15,8> version_major;

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237 ColorSelectReg red_select; /**< Red color select register */
238 ColorSelectReg green_select; /**< Green color select register */
239 ColorSelectReg blue_select; /**< Blue color select register */
240 /** @} */
241
242 /** Pixel clock period */
243 const Tick pixelClock;
244
149 /**
150 * @name RegisterFieldLayouts
151 * Bit layout declarations for multi-field registers.
152 */
153 /**@{*/
154 BitUnion32(VersionReg)
155 Bitfield<7,0> version_minor;
156 Bitfield<15,8> version_major;

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241 ColorSelectReg red_select; /**< Red color select register */
242 ColorSelectReg green_select; /**< Green color select register */
243 ColorSelectReg blue_select; /**< Blue color select register */
244 /** @} */
245
246 /** Pixel clock period */
247 const Tick pixelClock;
248
249 FrameBuffer fb;
250
245 /** VNC server */
246 VncInput *vnc;
247
248 /** Helper to write out bitmaps */
251 /** VNC server */
252 VncInput *vnc;
253
254 /** Helper to write out bitmaps */
249 Bitmap *bmp;
255 Bitmap bmp;
250
251 /** Picture of what the current frame buffer looks like */
252 std::ostream *pic;
253
254 /**
255 * Event wrapper for dmaDone()
256 *
257 * This event call pushes its this pointer onto the freeDoneEvent vector

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320
321 /** Number of pending dma reads */
322 size_t dmaPendingNum;
323
324 /** Flag indicating whether current frame has underrun */
325 bool frameUnderrun;
326
327 /** HDLcd virtual display buffer */
256
257 /** Picture of what the current frame buffer looks like */
258 std::ostream *pic;
259
260 /**
261 * Event wrapper for dmaDone()
262 *
263 * This event call pushes its this pointer onto the freeDoneEvent vector

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326
327 /** Number of pending dma reads */
328 size_t dmaPendingNum;
329
330 /** Flag indicating whether current frame has underrun */
331 bool frameUnderrun;
332
333 /** HDLcd virtual display buffer */
328 uint8_t *virtualDisplayBuffer;
334 std::vector<uint8_t> virtualDisplayBuffer;
329
330 /** Size of the pixel buffer */
331 size_t pixelBufferSize;
332
333 /** Index of the next pixel to render */
334 size_t pixelIndex;
335
336 /** Flag indicating whether video parameters need updating */

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397 * Gets frame buffer height.
398 *
399 * @return frame buffer height (lines per panel)
400 */
401 inline size_t height() const {
402 return fb_line_count.fb_line_count;
403 }
404
335
336 /** Size of the pixel buffer */
337 size_t pixelBufferSize;
338
339 /** Index of the next pixel to render */
340 size_t pixelIndex;
341
342 /** Flag indicating whether video parameters need updating */

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403 * Gets frame buffer height.
404 *
405 * @return frame buffer height (lines per panel)
406 */
407 inline size_t height() const {
408 return fb_line_count.fb_line_count;
409 }
410
411 inline size_t area() const { return height() * width(); }
412
405 /**
406 * Gets the total number of pixel clocks per display line.
407 *
408 * @return number of pixel clocks per display line including porch delays
409 * and horizontal sync time
410 */
411 inline uint64_t PClksPerLine() const {
412 return h_back_porch.val + 1 +

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431 void fillPixelBuffer();
432
433 /** DMA done event */
434 void dmaDone(DmaDoneEvent *event);
435
436 /** Called when it is time to render a pixel */
437 void renderPixel();
438
413 /**
414 * Gets the total number of pixel clocks per display line.
415 *
416 * @return number of pixel clocks per display line including porch delays
417 * and horizontal sync time
418 */
419 inline uint64_t PClksPerLine() const {
420 return h_back_porch.val + 1 +

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439 void fillPixelBuffer();
440
441 /** DMA done event */
442 void dmaDone(DmaDoneEvent *event);
443
444 /** Called when it is time to render a pixel */
445 void renderPixel();
446
447 PixelConverter pixelConverter() const;
448
439 /** Start of frame event */
440 EventWrapper<HDLcd, &HDLcd::startFrame> startFrameEvent;
441
442 /** End of frame event */
443 EventWrapper<HDLcd, &HDLcd::endFrame> endFrameEvent;
444
445 /** Pixel render event */
446 EventWrapper<HDLcd, &HDLcd::renderPixel> renderPixelEvent;

--- 58 unchanged lines hidden --- 		449 /** Start of frame event */
450 EventWrapper<HDLcd, &HDLcd::startFrame> startFrameEvent;
451
452 /** End of frame event */
453 EventWrapper<HDLcd, &HDLcd::endFrame> endFrameEvent;
454
455 /** Pixel render event */
456 EventWrapper<HDLcd, &HDLcd::renderPixel> renderPixelEvent;

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