From 856d7d932641b884a22bf861a1896bdf82778277 Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Mon, 29 Sep 2014 09:53:44 -0300 Subject: [PATCH] [media] coda: add coda_write_base helper Add a helper function that writes a vb2_buffer's Y, Cb, and Cr plane base addresses of into three consecutive registers. This moves common code out of coda-bit.c. Signed-off-by: Philipp Zabel Signed-off-by: Kamil Debski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/coda/coda-bit.c | 68 +++++------------------ drivers/media/platform/coda/coda-common.c | 24 ++++++++ drivers/media/platform/coda/coda.h | 2 + 3 files changed, 40 insertions(+), 54 deletions(-) diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c index 9b8ea8bbeb4e..f01393ccf30c 100644 --- a/drivers/media/platform/coda/coda-bit.c +++ b/drivers/media/platform/coda/coda-bit.c @@ -1036,9 +1036,9 @@ static int coda_prepare_encode(struct coda_ctx *ctx) struct coda_dev *dev = ctx->dev; int force_ipicture; int quant_param = 0; - u32 picture_y, picture_cb, picture_cr; u32 pic_stream_buffer_addr, pic_stream_buffer_size; u32 dst_fourcc; + u32 reg; src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); @@ -1129,37 +1129,17 @@ static int coda_prepare_encode(struct coda_ctx *ctx) coda_write(dev, quant_param, CODA_CMD_ENC_PIC_QS); - picture_y = vb2_dma_contig_plane_dma_addr(src_buf, 0); - switch (q_data_src->fourcc) { - case V4L2_PIX_FMT_YVU420: - /* Switch Cb and Cr for YVU420 format */ - picture_cr = picture_y + q_data_src->bytesperline * - q_data_src->height; - picture_cb = picture_cr + q_data_src->bytesperline / 2 * - q_data_src->height / 2; - break; - case V4L2_PIX_FMT_YUV420: - default: - picture_cb = picture_y + q_data_src->bytesperline * - q_data_src->height; - picture_cr = picture_cb + q_data_src->bytesperline / 2 * - q_data_src->height / 2; - break; - } - if (dev->devtype->product == CODA_960) { coda_write(dev, 4/*FIXME: 0*/, CODA9_CMD_ENC_PIC_SRC_INDEX); coda_write(dev, q_data_src->width, CODA9_CMD_ENC_PIC_SRC_STRIDE); coda_write(dev, 0, CODA9_CMD_ENC_PIC_SUB_FRAME_SYNC); - coda_write(dev, picture_y, CODA9_CMD_ENC_PIC_SRC_ADDR_Y); - coda_write(dev, picture_cb, CODA9_CMD_ENC_PIC_SRC_ADDR_CB); - coda_write(dev, picture_cr, CODA9_CMD_ENC_PIC_SRC_ADDR_CR); + reg = CODA9_CMD_ENC_PIC_SRC_ADDR_Y; } else { - coda_write(dev, picture_y, CODA_CMD_ENC_PIC_SRC_ADDR_Y); - coda_write(dev, picture_cb, CODA_CMD_ENC_PIC_SRC_ADDR_CB); - coda_write(dev, picture_cr, CODA_CMD_ENC_PIC_SRC_ADDR_CR); + reg = CODA_CMD_ENC_PIC_SRC_ADDR_Y; } + coda_write_base(ctx, q_data_src, src_buf, reg); + coda_write(dev, force_ipicture << 1 & 0x2, CODA_CMD_ENC_PIC_OPTION); @@ -1501,20 +1481,11 @@ static int coda_prepare_decode(struct coda_ctx *ctx) struct vb2_buffer *dst_buf; struct coda_dev *dev = ctx->dev; struct coda_q_data *q_data_dst; - u32 stridey, height; - u32 picture_y, picture_cb, picture_cr; + u32 reg_addr, reg_stride; dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); - if (ctx->params.rot_mode & CODA_ROT_90) { - stridey = q_data_dst->height; - height = q_data_dst->width; - } else { - stridey = q_data_dst->width; - height = q_data_dst->height; - } - /* Try to copy source buffer contents into the bitstream ringbuffer */ mutex_lock(&ctx->bitstream_mutex); coda_fill_bitstream(ctx); @@ -1545,17 +1516,6 @@ static int coda_prepare_decode(struct coda_ctx *ctx) if (dev->devtype->product == CODA_960) coda_set_gdi_regs(ctx); - /* Set rotator output */ - picture_y = vb2_dma_contig_plane_dma_addr(dst_buf, 0); - if (q_data_dst->fourcc == V4L2_PIX_FMT_YVU420) { - /* Switch Cr and Cb for YVU420 format */ - picture_cr = picture_y + stridey * height; - picture_cb = picture_cr + stridey / 2 * height / 2; - } else { - picture_cb = picture_y + stridey * height; - picture_cr = picture_cb + stridey / 2 * height / 2; - } - if (dev->devtype->product == CODA_960) { /* * The CODA960 seems to have an internal list of buffers with @@ -1565,16 +1525,16 @@ static int coda_prepare_decode(struct coda_ctx *ctx) */ coda_write(dev, CODA_MAX_FRAMEBUFFERS + dst_buf->v4l2_buf.index, CODA9_CMD_DEC_PIC_ROT_INDEX); - coda_write(dev, picture_y, CODA9_CMD_DEC_PIC_ROT_ADDR_Y); - coda_write(dev, picture_cb, CODA9_CMD_DEC_PIC_ROT_ADDR_CB); - coda_write(dev, picture_cr, CODA9_CMD_DEC_PIC_ROT_ADDR_CR); - coda_write(dev, stridey, CODA9_CMD_DEC_PIC_ROT_STRIDE); + + reg_addr = CODA9_CMD_DEC_PIC_ROT_ADDR_Y; + reg_stride = CODA9_CMD_DEC_PIC_ROT_STRIDE; } else { - coda_write(dev, picture_y, CODA_CMD_DEC_PIC_ROT_ADDR_Y); - coda_write(dev, picture_cb, CODA_CMD_DEC_PIC_ROT_ADDR_CB); - coda_write(dev, picture_cr, CODA_CMD_DEC_PIC_ROT_ADDR_CR); - coda_write(dev, stridey, CODA_CMD_DEC_PIC_ROT_STRIDE); + reg_addr = CODA_CMD_DEC_PIC_ROT_ADDR_Y; + reg_stride = CODA_CMD_DEC_PIC_ROT_STRIDE; } + coda_write_base(ctx, q_data_dst, dst_buf, reg_addr); + coda_write(dev, q_data_dst->bytesperline, reg_stride); + coda_write(dev, CODA_ROT_MIR_ENABLE | ctx->params.rot_mode, CODA_CMD_DEC_PIC_ROT_MODE); diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c index 538d4acef17e..fac25170c4c3 100644 --- a/drivers/media/platform/coda/coda-common.c +++ b/drivers/media/platform/coda/coda-common.c @@ -82,6 +82,30 @@ unsigned int coda_read(struct coda_dev *dev, u32 reg) return data; } +void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data, + struct vb2_buffer *buf, unsigned int reg_y) +{ + u32 base_y = vb2_dma_contig_plane_dma_addr(buf, 0); + u32 base_cb, base_cr; + + switch (q_data->fourcc) { + case V4L2_PIX_FMT_YVU420: + /* Switch Cb and Cr for YVU420 format */ + base_cr = base_y + q_data->bytesperline * q_data->height; + base_cb = base_cr + q_data->bytesperline * q_data->height / 4; + break; + case V4L2_PIX_FMT_YUV420: + default: + base_cb = base_y + q_data->bytesperline * q_data->height; + base_cr = base_cb + q_data->bytesperline * q_data->height / 4; + break; + } + + coda_write(ctx->dev, base_y, reg_y); + coda_write(ctx->dev, base_cb, reg_y + 4); + coda_write(ctx->dev, base_cr, reg_y + 8); +} + /* * Array of all formats supported by any version of Coda: */ diff --git a/drivers/media/platform/coda/coda.h b/drivers/media/platform/coda/coda.h index bbc18c0dacd9..76ba83c03191 100644 --- a/drivers/media/platform/coda/coda.h +++ b/drivers/media/platform/coda/coda.h @@ -232,6 +232,8 @@ extern int coda_debug; void coda_write(struct coda_dev *dev, u32 data, u32 reg); unsigned int coda_read(struct coda_dev *dev, u32 reg); +void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data, + struct vb2_buffer *buf, unsigned int reg_y); int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf, size_t size, const char *name, struct dentry *parent); -- 2.20.1