From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Ripard Subject: [RFC PATCH 20/20] media: sun6i: Convert to the image format API Date: Tue, 19 Mar 2019 22:57:25 +0100 Message-ID: References: Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Daniel Vetter , David Airlie , Maarten Lankhorst , Sean Paul , Maxime Ripard , Mauro Carvalho Chehab Cc: Sakari Ailus , Hans Verkuil , Laurent Pinchart , Thomas Petazzoni , Paul Kocialkowski , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org List-Id: dri-devel@lists.freedesktop.org The image format API allows us to remove some of the computation we need to handle the various video formats. Signed-off-by: Maxime Ripard --- drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c | 88 +++------------ drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h | 46 +-------- 2 files changed, 22 insertions(+), 112 deletions(-) diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c index 6950585edb5a..d4693efb9e02 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c @@ -466,72 +466,27 @@ static void sun6i_csi_set_format(struct sun6i_csi_dev *sdev) static void sun6i_csi_set_window(struct sun6i_csi_dev *sdev) { struct sun6i_csi_config *config = &sdev->csi.config; - u32 bytesperline_y; - u32 bytesperline_c; + const struct image_format_info *info = + image_format_v4l2_lookup(config->pixelformat); int *planar_offset = sdev->planar_offset; - u32 width = config->width; - u32 height = config->height; - u32 hor_len = width; + u32 bytesperline_y = image_format_plane_stride(info, config->width, 0); + u32 bytesperline_c = image_format_plane_stride(info, config->width, 1); + unsigned int i; - switch (config->pixelformat) { - case V4L2_PIX_FMT_YUYV: - case V4L2_PIX_FMT_YVYU: - case V4L2_PIX_FMT_UYVY: - case V4L2_PIX_FMT_VYUY: - dev_dbg(sdev->dev, - "Horizontal length should be 2 times of width for packed YUV formats!\n"); - hor_len = width * 2; - break; - default: - break; + offset = 0; + for (i = 0; i < info->num_planes; i++) { + planar_offset[i] = offset; + + offset += info_format_plane_size(info, config->width, + config->height, i); } regmap_write(sdev->regmap, CSI_CH_HSIZE_REG, - CSI_CH_HSIZE_HOR_LEN(hor_len) | + CSI_CH_HSIZE_HOR_LEN(bytesperline_c) | CSI_CH_HSIZE_HOR_START(0)); regmap_write(sdev->regmap, CSI_CH_VSIZE_REG, - CSI_CH_VSIZE_VER_LEN(height) | + CSI_CH_VSIZE_VER_LEN(config->height) | CSI_CH_VSIZE_VER_START(0)); - - planar_offset[0] = 0; - switch (config->pixelformat) { - case V4L2_PIX_FMT_HM12: - case V4L2_PIX_FMT_NV12: - case V4L2_PIX_FMT_NV21: - case V4L2_PIX_FMT_NV16: - case V4L2_PIX_FMT_NV61: - bytesperline_y = width; - bytesperline_c = width; - planar_offset[1] = bytesperline_y * height; - planar_offset[2] = -1; - break; - case V4L2_PIX_FMT_YUV420: - case V4L2_PIX_FMT_YVU420: - bytesperline_y = width; - bytesperline_c = width / 2; - planar_offset[1] = bytesperline_y * height; - planar_offset[2] = planar_offset[1] + - bytesperline_c * height / 2; - break; - case V4L2_PIX_FMT_YUV422P: - bytesperline_y = width; - bytesperline_c = width / 2; - planar_offset[1] = bytesperline_y * height; - planar_offset[2] = planar_offset[1] + - bytesperline_c * height; - break; - default: /* raw */ - dev_dbg(sdev->dev, - "Calculating pixelformat(0x%x)'s bytesperline as a packed format\n", - config->pixelformat); - bytesperline_y = (sun6i_csi_get_bpp(config->pixelformat) * - config->width) / 8; - bytesperline_c = 0; - planar_offset[1] = -1; - planar_offset[2] = -1; - break; - } - regmap_write(sdev->regmap, CSI_CH_BUF_LEN_REG, CSI_CH_BUF_LEN_BUF_LEN_C(bytesperline_c) | CSI_CH_BUF_LEN_BUF_LEN_Y(bytesperline_y)); @@ -557,15 +512,16 @@ int sun6i_csi_update_config(struct sun6i_csi *csi, void sun6i_csi_update_buf_addr(struct sun6i_csi *csi, dma_addr_t addr) { struct sun6i_csi_dev *sdev = sun6i_csi_to_dev(csi); + struct sun6i_csi_config *config = &sdev->csi.config; + const struct image_format_info *info = + image_format_v4l2_lookup(config->pixelformat); + unsigned int i; + + for (i = 0; i < info->num_planes; i++) { + regmap_write(sdev->regmap, CSI_CH_BUF_REG(i, 0), + (addr + sdev->planar_offset[i]) >> 2); - regmap_write(sdev->regmap, CSI_CH_F0_BUFA_REG, - (addr + sdev->planar_offset[0]) >> 2); - if (sdev->planar_offset[1] != -1) - regmap_write(sdev->regmap, CSI_CH_F1_BUFA_REG, - (addr + sdev->planar_offset[1]) >> 2); - if (sdev->planar_offset[2] != -1) - regmap_write(sdev->regmap, CSI_CH_F2_BUFA_REG, - (addr + sdev->planar_offset[2]) >> 2); + } } void sun6i_csi_set_stream(struct sun6i_csi *csi, bool enable) diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h index 0bb000712c33..3c57ec89b108 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h @@ -86,50 +86,4 @@ void sun6i_csi_update_buf_addr(struct sun6i_csi *csi, dma_addr_t addr); */ void sun6i_csi_set_stream(struct sun6i_csi *csi, bool enable); -/* get bpp form v4l2 pixformat */ -static inline int sun6i_csi_get_bpp(unsigned int pixformat) -{ - switch (pixformat) { - case V4L2_PIX_FMT_SBGGR8: - case V4L2_PIX_FMT_SGBRG8: - case V4L2_PIX_FMT_SGRBG8: - case V4L2_PIX_FMT_SRGGB8: - return 8; - case V4L2_PIX_FMT_SBGGR10: - case V4L2_PIX_FMT_SGBRG10: - case V4L2_PIX_FMT_SGRBG10: - case V4L2_PIX_FMT_SRGGB10: - return 10; - case V4L2_PIX_FMT_SBGGR12: - case V4L2_PIX_FMT_SGBRG12: - case V4L2_PIX_FMT_SGRBG12: - case V4L2_PIX_FMT_SRGGB12: - case V4L2_PIX_FMT_HM12: - case V4L2_PIX_FMT_NV12: - case V4L2_PIX_FMT_NV21: - case V4L2_PIX_FMT_YUV420: - case V4L2_PIX_FMT_YVU420: - return 12; - case V4L2_PIX_FMT_YUYV: - case V4L2_PIX_FMT_YVYU: - case V4L2_PIX_FMT_UYVY: - case V4L2_PIX_FMT_VYUY: - case V4L2_PIX_FMT_NV16: - case V4L2_PIX_FMT_NV61: - case V4L2_PIX_FMT_YUV422P: - return 16; - case V4L2_PIX_FMT_RGB24: - case V4L2_PIX_FMT_BGR24: - return 24; - case V4L2_PIX_FMT_RGB32: - case V4L2_PIX_FMT_BGR32: - return 32; - default: - WARN(1, "Unsupported pixformat: 0x%x\n", pixformat); - break; - } - - return 0; -} - #endif /* __SUN6I_CSI_H__ */ -- git-series 0.9.1