From: Junghak Sung Date: Tue, 3 Nov 2015 10:16:41 +0000 (-0200) Subject: [media] media: videobuf2: Refactor vb2_fileio_data and vb2_thread X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=70433a152f0058404afb5496a9329e4e26b127df;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git [media] media: videobuf2: Refactor vb2_fileio_data and vb2_thread Replace v4l2-stuffs with common things in struct vb2_fileio_data and vb2_thread(). Signed-off-by: Junghak Sung Signed-off-by: Geunyoung Kim Acked-by: Seung-Woo Kim Acked-by: Inki Dae Acked-by: Hans Verkuil Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/v4l2-core/videobuf2-v4l2.c b/drivers/media/v4l2-core/videobuf2-v4l2.c index 91728c18430d..9dff50fd204d 100644 --- a/drivers/media/v4l2-core/videobuf2-v4l2.c +++ b/drivers/media/v4l2-core/videobuf2-v4l2.c @@ -959,9 +959,10 @@ struct vb2_fileio_buf { * or write function. */ struct vb2_fileio_data { - struct v4l2_requestbuffers req; - struct v4l2_plane p; - struct v4l2_buffer b; + unsigned int count; + unsigned int type; + unsigned int memory; + struct vb2_buffer *b; struct vb2_fileio_buf bufs[VB2_MAX_FRAME]; unsigned int cur_index; unsigned int initial_index; @@ -1014,6 +1015,10 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read) if (fileio == NULL) return -ENOMEM; + fileio->b = kzalloc(q->buf_struct_size, GFP_KERNEL); + if (fileio->b == NULL) + return -ENOMEM; + fileio->read_once = q->fileio_read_once; fileio->write_immediately = q->fileio_write_immediately; @@ -1021,11 +1026,11 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read) * Request buffers and use MMAP type to force driver * to allocate buffers by itself. */ - fileio->req.count = count; - fileio->req.memory = VB2_MEMORY_MMAP; - fileio->req.type = q->type; + fileio->count = count; + fileio->memory = VB2_MEMORY_MMAP; + fileio->type = q->type; q->fileio = fileio; - ret = vb2_core_reqbufs(q, fileio->req.memory, &fileio->req.count); + ret = vb2_core_reqbufs(q, fileio->memory, &fileio->count); if (ret) goto err_kfree; @@ -1054,24 +1059,17 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read) * Read mode requires pre queuing of all buffers. */ if (read) { - bool is_multiplanar = q->is_multiplanar; - /* * Queue all buffers. */ for (i = 0; i < q->num_buffers; i++) { - struct v4l2_buffer *b = &fileio->b; + struct vb2_buffer *b = fileio->b; - memset(b, 0, sizeof(*b)); + memset(b, 0, q->buf_struct_size); b->type = q->type; - if (is_multiplanar) { - memset(&fileio->p, 0, sizeof(fileio->p)); - b->m.planes = &fileio->p; - b->length = 1; - } b->memory = q->memory; b->index = i; - ret = vb2_internal_qbuf(q, b); + ret = vb2_core_qbuf(q, i, b); if (ret) goto err_reqbufs; fileio->bufs[i].queued = 1; @@ -1094,8 +1092,8 @@ static int __vb2_init_fileio(struct vb2_queue *q, int read) return ret; err_reqbufs: - fileio->req.count = 0; - vb2_core_reqbufs(q, fileio->req.memory, &fileio->req.count); + fileio->count = 0; + vb2_core_reqbufs(q, fileio->memory, &fileio->count); err_kfree: q->fileio = NULL; @@ -1114,8 +1112,9 @@ static int __vb2_cleanup_fileio(struct vb2_queue *q) if (fileio) { vb2_core_streamoff(q, q->type); q->fileio = NULL; - fileio->req.count = 0; - vb2_reqbufs(q, &fileio->req); + fileio->count = 0; + vb2_core_reqbufs(q, fileio->memory, &fileio->count); + kfree(fileio->b); kfree(fileio); dprintk(3, "file io emulator closed\n"); } @@ -1168,24 +1167,21 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_ */ index = fileio->cur_index; if (index >= q->num_buffers) { + struct vb2_buffer *b = fileio->b; + /* * Call vb2_dqbuf to get buffer back. */ - memset(&fileio->b, 0, sizeof(fileio->b)); - fileio->b.type = q->type; - fileio->b.memory = q->memory; - if (is_multiplanar) { - memset(&fileio->p, 0, sizeof(fileio->p)); - fileio->b.m.planes = &fileio->p; - fileio->b.length = 1; - } - ret = vb2_internal_dqbuf(q, &fileio->b, nonblock); + memset(b, 0, q->buf_struct_size); + b->type = q->type; + b->memory = q->memory; + ret = vb2_core_dqbuf(q, b, nonblock); dprintk(5, "vb2_dqbuf result: %d\n", ret); if (ret) return ret; fileio->dq_count += 1; - fileio->cur_index = index = fileio->b.index; + fileio->cur_index = index = b->index; buf = &fileio->bufs[index]; /* @@ -1197,8 +1193,8 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_ : vb2_plane_size(q->bufs[index], 0); /* Compensate for data_offset on read in the multiplanar case. */ if (is_multiplanar && read && - fileio->b.m.planes[0].data_offset < buf->size) { - buf->pos = fileio->b.m.planes[0].data_offset; + b->planes[0].data_offset < buf->size) { + buf->pos = b->planes[0].data_offset; buf->size -= buf->pos; } } else { @@ -1237,6 +1233,8 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_ * Queue next buffer if required. */ if (buf->pos == buf->size || (!read && fileio->write_immediately)) { + struct vb2_buffer *b = fileio->b; + /* * Check if this is the last buffer to read. */ @@ -1248,20 +1246,15 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_ /* * Call vb2_qbuf and give buffer to the driver. */ - memset(&fileio->b, 0, sizeof(fileio->b)); - fileio->b.type = q->type; - fileio->b.memory = q->memory; - fileio->b.index = index; - fileio->b.bytesused = buf->pos; - if (is_multiplanar) { - memset(&fileio->p, 0, sizeof(fileio->p)); - fileio->p.bytesused = buf->pos; - fileio->b.m.planes = &fileio->p; - fileio->b.length = 1; - } + memset(b, 0, q->buf_struct_size); + b->type = q->type; + b->memory = q->memory; + b->index = index; + b->planes[0].bytesused = buf->pos; + if (copy_timestamp) - v4l2_get_timestamp(&fileio->b.timestamp); - ret = vb2_internal_qbuf(q, &fileio->b); + b->timestamp = ktime_get_ns(); + ret = vb2_core_qbuf(q, index, b); dprintk(5, "vb2_dbuf result: %d\n", ret); if (ret) return ret; @@ -1338,20 +1331,21 @@ static int vb2_thread(void *data) for (;;) { struct vb2_buffer *vb; + struct vb2_buffer *b = fileio->b; /* * Call vb2_dqbuf to get buffer back. */ - memset(&fileio->b, 0, sizeof(fileio->b)); - fileio->b.type = q->type; - fileio->b.memory = q->memory; + memset(b, 0, q->buf_struct_size); + b->type = q->type; + b->memory = q->memory; if (prequeue) { - fileio->b.index = index++; + b->index = index++; prequeue--; } else { call_void_qop(q, wait_finish, q); if (!threadio->stop) - ret = vb2_internal_dqbuf(q, &fileio->b, 0); + ret = vb2_core_dqbuf(q, b, 0); call_void_qop(q, wait_prepare, q); dprintk(5, "file io: vb2_dqbuf result: %d\n", ret); } @@ -1359,15 +1353,15 @@ static int vb2_thread(void *data) break; try_to_freeze(); - vb = q->bufs[fileio->b.index]; - if (!(fileio->b.flags & V4L2_BUF_FLAG_ERROR)) + vb = q->bufs[b->index]; + if (b->state == VB2_BUF_STATE_DONE) if (threadio->fnc(vb, threadio->priv)) break; call_void_qop(q, wait_finish, q); if (copy_timestamp) - v4l2_get_timestamp(&fileio->b.timestamp); + b->timestamp = ktime_get_ns(); if (!threadio->stop) - ret = vb2_internal_qbuf(q, &fileio->b); + ret = vb2_core_qbuf(q, b->index, b); call_void_qop(q, wait_prepare, q); if (ret || threadio->stop) break;