2 * Copyright (C) 2016 Nexell Co., Ltd.
3 * Author: SeongO, Park <ray@nexell.co.kr>
17 #include <sys/types.h>
19 #include <sys/ioctl.h>
20 #include <sys/mman.h> // PROT_READ/PROT_WRITE/MAP_SHARED/mmap/munmap
22 #include <nexell/nexell_drm.h>
23 #include <nx_video_alloc.h>
25 #include <libdrm/drm_fourcc.h>
26 #include <linux/videodev2.h>
27 #include <linux/videodev2_nxp_media.h>
28 #ifdef TIZEN_FEATURE_ARTIK530
29 #include <tbm_bufmgr.h>
31 #include "nx_video_log.h"
33 #define DRM_DEVICE_NAME "/dev/dri/card0"
35 #define DRM_IOCTL_NR(n) _IOC_NR(n)
36 #define DRM_IOC_VOID _IOC_NONE
37 #define DRM_IOC_READ _IOC_READ
38 #define DRM_IOC_WRITE _IOC_WRITE
39 #define DRM_IOC_READWRITE _IOC_READ|_IOC_WRITE
40 #define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size)
43 drm_ioctl (int32_t drm_fd, uint32_t request, void *arg)
48 ret = ioctl (drm_fd, request, arg);
49 } while (ret == -1 && (errno == EINTR || errno == EAGAIN));
54 drm_command_write_read (int fd, uint32_t command_index,
55 void *data, uint32_t size)
59 request = DRM_IOC (DRM_IOC_READ | DRM_IOC_WRITE, DRM_IOCTL_BASE,
60 DRM_COMMAND_BASE + command_index, size);
61 if (drm_ioctl (fd, request, data))
70 alloc_gem (int drm_fd, int size, int flags)
72 struct nx_drm_gem_create arg = { 0, };
75 arg.size = (uint32_t) size;
78 ret = drm_command_write_read (drm_fd, DRM_NX_GEM_CREATE, &arg, sizeof (arg));
80 _E ("drm_command_write_read\n");
83 //_D ("[DRM ALLOC] gem %d, size %d, flags 0x%x\n", arg.handle, size, flags);
89 free_gem (int drm_fd, int gem)
91 struct drm_gem_close arg = { 0, };
94 drm_ioctl (drm_fd, DRM_IOCTL_GEM_CLOSE, &arg);
101 gem_to_dmafd (int drm_fd, int gem_fd)
104 struct drm_prime_handle arg = { 0, };
107 arg.flags = O_CLOEXEC | O_RDWR;
108 ret = drm_ioctl (drm_fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &arg);
110 _E ("fail : get fd from gem:%d (DRM_IOCTL_PRIME_HANDLE_TO_FD)\n", ret);
117 get_flink_name (int fd, int gem)
119 struct drm_gem_flink arg = { 0, };
122 if (drm_ioctl (fd, DRM_IOCTL_GEM_FLINK, &arg)) {
123 _E ("fail : get flink from gem:%d (DRM_IOCTL_GEM_FLINK)\n", gem);
130 gem_from_flink (int fd, uint32_t flink_name)
132 struct drm_gem_open arg = { 0, };
133 /* struct nx_drm_gem_info info = { 0, }; */
135 arg.name = flink_name;
136 if (drm_ioctl (fd, DRM_IOCTL_GEM_OPEN, &arg)) {
137 _E ("fail : cannot open gem name=%d\n", flink_name);
145 // Nexell Private Video Memory Allocator for DRM
149 #define ALIGN(X,N) ( (X+N-1) & (~(N-1)) )
152 #define ALIGNED16(X) ALIGN(X,16)
155 // Nexell Private Memory Allocator
157 NX_AllocateMemory (int size, int align)
162 NX_MEMORY_INFO *pMem;
164 int drmFd = open (DRM_DEVICE_NAME, O_RDWR);
168 drmDropMaster (drmFd);
170 gemFd = alloc_gem (drmFd, size, flags);
174 dmaFd = gem_to_dmafd (drmFd, gemFd);
178 pMem = (NX_MEMORY_INFO *) calloc (1, sizeof (NX_MEMORY_INFO));
182 pMem->flink = get_flink_name (drmFd, gemFd);
189 free_gem (drmFd, gemFd);
197 NX_FreeMemory (NX_MEMORY_INFO * pMem)
201 munmap (pMem->pBuffer, pMem->size);
204 free_gem (pMem->drmFd, pMem->gemFd);
212 // Video Specific Allocator Wrapper
214 // Suport Format & Planes
216 // 1 Plane : I420, NV12
221 NX_AllocateVideoMemory (int width, int height, int32_t planes, uint32_t format,
224 int gemFd[NX_MAX_PLANES] = { 0, };
225 int dmaFd[NX_MAX_PLANES] = { 0, };
226 int32_t flags = 0, i = 0;
227 int32_t luStride, cStride;
228 int32_t luVStride, cVStride;
229 int32_t stride[NX_MAX_PLANES];
230 int32_t size[NX_MAX_PLANES];
231 uint32_t flink[NX_MAX_PLANES];
233 NX_VID_MEMORY_INFO *pVidMem;
235 int drmFd = open (DRM_DEVICE_NAME, O_RDWR);
239 drmDropMaster (drmFd);
242 luStride = ALIGN (width, 32);
243 luVStride = ALIGN (height, 16);
247 case DRM_FORMAT_YUV420:
248 case DRM_FORMAT_NV12:
249 case DRM_FORMAT_NV21:
250 case V4L2_PIX_FMT_YUV420M:
251 case V4L2_PIX_FMT_NV12M:
252 case V4L2_PIX_FMT_NV21M:
253 cStride = luStride / 2;
254 cVStride = ALIGN (height / 2, 16);
257 case DRM_FORMAT_YUV422:
258 case DRM_FORMAT_NV16:
259 case DRM_FORMAT_NV61:
260 case V4L2_PIX_FMT_YUV422M:
261 #if 0 // Disabled by DIGNSYS
262 case V4L2_PIX_FMT_NV16M:
263 case V4L2_PIX_FMT_NV61M:
265 cStride = luStride / 2;
266 cVStride = luVStride;
269 case DRM_FORMAT_YUV444:
270 //case DRM_FORMAT_NV24:
271 //case DRM_FORMAT_NV42:
272 case V4L2_PIX_FMT_YUV444M:
273 case V4L2_PIX_FMT_NV24M:
274 case V4L2_PIX_FMT_NV42M:
276 cVStride = luVStride;
279 case V4L2_PIX_FMT_GREY:
284 _E ("Unknown format type\n");
288 // Decide Memory Size
291 size[0] = luStride * luVStride + cStride * cVStride * 2;
292 stride[0] = luStride;
293 gemFd[0] = alloc_gem (drmFd, size[0], flags);
296 dmaFd[0] = gem_to_dmafd (drmFd, gemFd[0]);
299 flink[0] = get_flink_name (drmFd, gemFd[0]);
303 size[0] = luStride * luVStride;
304 stride[0] = luStride;
305 gemFd[0] = alloc_gem (drmFd, size[0], flags);
308 dmaFd[0] = gem_to_dmafd (drmFd, gemFd[0]);
311 flink[0] = get_flink_name (drmFd, gemFd[0]);
314 size[1] = cStride * cVStride * 2;
315 stride[1] = cStride * 2;
316 gemFd[1] = alloc_gem (drmFd, size[1], flags);
319 dmaFd[1] = gem_to_dmafd (drmFd, gemFd[1]);
322 flink[1] = get_flink_name (drmFd, gemFd[1]);
326 size[0] = luStride * luVStride;
327 stride[0] = luStride;
328 gemFd[0] = alloc_gem (drmFd, size[0], flags);
331 dmaFd[0] = gem_to_dmafd (drmFd, gemFd[0]);
334 flink[0] = get_flink_name (drmFd, gemFd[0]);
337 size[1] = cStride * cVStride;
339 gemFd[1] = alloc_gem (drmFd, size[1], flags);
342 dmaFd[1] = gem_to_dmafd (drmFd, gemFd[1]);
345 flink[1] = get_flink_name (drmFd, gemFd[1]);
348 size[2] = cStride * cVStride;
350 gemFd[2] = alloc_gem (drmFd, size[2], flags);
353 dmaFd[2] = gem_to_dmafd (drmFd, gemFd[2]);
356 flink[2] = get_flink_name (drmFd, gemFd[2]);
361 pVidMem = (NX_VID_MEMORY_INFO *) calloc (1, sizeof (NX_VID_MEMORY_INFO));
365 #ifdef TIZEN_FEATURE_ARTIK530
366 pVidMem->bufmgr = tbm_bufmgr_init (drmFd);
367 _D ("bufmgr = %p", pVidMem->bufmgr);
368 if (!pVidMem->bufmgr)
372 pVidMem->width = width;
373 pVidMem->height = height;
374 pVidMem->align = align;
375 pVidMem->planes = planes;
376 pVidMem->format = format;
377 pVidMem->drmFd = drmFd;
378 for (i = 0; i < planes; i++) {
379 pVidMem->dmaFd[i] = dmaFd[i];
380 pVidMem->gemFd[i] = gemFd[i];
381 pVidMem->size[i] = size[i];
382 pVidMem->stride[i] = stride[i];
383 pVidMem->flink[i] = flink[i];
384 #ifdef TIZEN_FEATURE_ARTIK530
385 pVidMem->bo[i] = tbm_bo_import (pVidMem->bufmgr, flink[i]);
386 _D ("bo[%d] = %p", i, pVidMem->bo[i]);
393 #ifdef TIZEN_FEATURE_ARTIK530
395 for (i = 0; i < planes; i++) {
397 tbm_bo_unref (pVidMem->bo[i]);
402 for (i = 0; i < planes; i++) {
404 free_gem (drmFd, gemFd[i]);
411 #ifdef TIZEN_FEATURE_ARTIK530
413 tbm_bufmgr_deinit (pVidMem->bufmgr);
424 NX_FreeVideoMemory (NX_VID_MEMORY_INFO * pMem)
428 for (i = 0; i < pMem->planes; i++) {
429 #ifdef TIZEN_FEATURE_ARTIK530
431 tbm_bo_unref (pMem->bo[i]);
433 if (pMem->pBuffer[i]) {
434 munmap (pMem->pBuffer[i], pMem->size[i]);
436 free_gem (pMem->drmFd, pMem->gemFd[i]);
437 close (pMem->dmaFd[i]);
439 #ifdef TIZEN_FEATURE_ARTIK530
441 tbm_bufmgr_deinit (pMem->bufmgr);
450 // Memory Mapping/Unmapping Memory
453 NX_MapMemory (NX_MEMORY_INFO * pMem)
464 mmap (0, pMem->size, PROT_READ | PROT_WRITE, MAP_SHARED, pMem->dmaFd, 0);
465 if (pBuf == MAP_FAILED) {
466 _E ("Map failed : size %d, fd %d, error : %s\n", pMem->size, pMem->dmaFd, strerror(errno));
469 pMem->pBuffer = pBuf;
475 NX_UnmapMemory (NX_MEMORY_INFO * pMem)
483 if (0 != munmap (pMem->pBuffer, pMem->size))
486 pMem->pBuffer = NULL;
491 NX_MapVideoMemory (NX_VID_MEMORY_INFO * pMem)
499 for (i = 0; i < pMem->planes; i++) {
500 if (pMem->pBuffer[i])
504 mmap (0, pMem->size[i], PROT_READ | PROT_WRITE, MAP_SHARED,
506 if (pBuf == MAP_FAILED) {
510 pMem->pBuffer[i] = pBuf;
516 NX_UnmapVideoMemory (NX_VID_MEMORY_INFO * pMem)
521 for (i = 0; i < pMem->planes; i++) {
522 if (pMem->pBuffer[i]) {
523 munmap (pMem->pBuffer[i], pMem->size[i]);
531 NX_GetGEMHandles (int drmFd, NX_VID_MEMORY_INFO * pMem,
532 uint32_t handles[NX_MAX_PLANES])
535 memset (handles, 0, sizeof (uint32_t) * NX_MAX_PLANES);
537 for (i = 0; i < pMem->planes; i++) {
538 handles[i] = gem_from_flink (drmFd, pMem->flink[i]);
539 if (0 > (int) handles[i]) {
547 NX_GetGemHandle (int drmFd, NX_VID_MEMORY_INFO * pMem, int32_t plane)
549 if (plane >= NX_MAX_PLANES || plane < 0)
552 return gem_from_flink (drmFd, pMem->flink[plane]);