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author | 2022-11-03 16:30:51 +0000 | |
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committer | 2022-11-25 07:04:46 +0000 | |
commit | dc8b931ca9def4ea9a5d232f73c229774a9054c5 (patch) | |
tree | 05a5ea99a0cc3647b201490a92c074f75c6817f5 /drivers/media/platform/sunxi | |
parent | media: sun6i-csi: Add dimensions and format helpers to capture (diff) | |
download | linux-dc8b931ca9def4ea9a5d232f73c229774a9054c5.tar.gz linux-dc8b931ca9def4ea9a5d232f73c229774a9054c5.tar.bz2 linux-dc8b931ca9def4ea9a5d232f73c229774a9054c5.zip |
media: sun6i-csi: Implement address configuration without indirection
Instead of calculating the planar_offset at one point and using it
later in a dedicated function, reimplement address configuration
with v4l2 format info in the buffer_configure function.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/platform/sunxi')
-rw-r--r-- | drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c | 27 | ||||
-rw-r--r-- | drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h | 10 | ||||
-rw-r--r-- | drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c | 32 |
3 files changed, 31 insertions, 38 deletions
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c index 745ca5bcd733..673e40f78a9a 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c @@ -463,7 +463,6 @@ static void sun6i_csi_set_window(struct sun6i_csi_device *csi_dev) struct sun6i_csi_config *config = &csi_dev->config; u32 bytesperline_y; u32 bytesperline_c; - int *planar_offset = csi_dev->planar_offset; u32 width = config->width; u32 height = config->height; u32 hor_len = width; @@ -488,7 +487,6 @@ static void sun6i_csi_set_window(struct sun6i_csi_device *csi_dev) SUN6I_CSI_CH_VSIZE_LEN(height) | SUN6I_CSI_CH_VSIZE_START(0)); - planar_offset[0] = 0; switch (config->pixelformat) { case V4L2_PIX_FMT_NV12_16L16: case V4L2_PIX_FMT_NV12: @@ -497,23 +495,15 @@ static void sun6i_csi_set_window(struct sun6i_csi_device *csi_dev) 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(csi_dev->dev, @@ -522,8 +512,6 @@ static void sun6i_csi_set_window(struct sun6i_csi_device *csi_dev) bytesperline_y = (sun6i_csi_get_bpp(config->pixelformat) * config->width) / 8; bytesperline_c = 0; - planar_offset[1] = -1; - planar_offset[2] = -1; break; } @@ -547,21 +535,6 @@ int sun6i_csi_update_config(struct sun6i_csi_device *csi_dev, return 0; } -void sun6i_csi_update_buf_addr(struct sun6i_csi_device *csi_dev, - dma_addr_t addr) -{ - regmap_write(csi_dev->regmap, SUN6I_CSI_CH_FIFO0_ADDR_REG, - SUN6I_CSI_ADDR_VALUE(addr + csi_dev->planar_offset[0])); - if (csi_dev->planar_offset[1] != -1) - regmap_write(csi_dev->regmap, SUN6I_CSI_CH_FIFO1_ADDR_REG, - SUN6I_CSI_ADDR_VALUE(addr + - csi_dev->planar_offset[1])); - if (csi_dev->planar_offset[2] != -1) - regmap_write(csi_dev->regmap, SUN6I_CSI_CH_FIFO2_ADDR_REG, - SUN6I_CSI_ADDR_VALUE(addr + - csi_dev->planar_offset[2])); -} - void sun6i_csi_set_stream(struct sun6i_csi_device *csi_dev, bool enable) { struct regmap *regmap = csi_dev->regmap; diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h index 6c0110e4b3ab..75867cde7985 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.h @@ -60,8 +60,6 @@ struct sun6i_csi_device { struct clk *clock_mod; struct clk *clock_ram; struct reset_control *reset; - - int planar_offset[3]; }; struct sun6i_csi_variant { @@ -99,14 +97,6 @@ int sun6i_csi_update_config(struct sun6i_csi_device *csi_dev, struct sun6i_csi_config *config); /** - * sun6i_csi_update_buf_addr() - update the csi frame buffer address - * @csi_dev: pointer to the csi device - * @addr: frame buffer's physical address - */ -void sun6i_csi_update_buf_addr(struct sun6i_csi_device *csi_dev, - dma_addr_t addr); - -/** * sun6i_csi_set_stream() - start/stop csi streaming * @csi_dev: pointer to the csi device * @enable: start/stop diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c index 9a20b9fc2577..5e7bbaa1006f 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c @@ -6,6 +6,7 @@ */ #include <linux/of.h> +#include <linux/regmap.h> #include <media/v4l2-device.h> #include <media/v4l2-event.h> @@ -16,6 +17,7 @@ #include "sun6i_csi.h" #include "sun6i_csi_capture.h" +#include "sun6i_csi_reg.h" /* This is got from BSP sources. */ #define MIN_WIDTH (32) @@ -109,13 +111,41 @@ static void sun6i_csi_capture_buffer_configure(struct sun6i_csi_device *csi_dev, struct sun6i_csi_buffer *csi_buffer) { + struct regmap *regmap = csi_dev->regmap; + const struct v4l2_format_info *info; struct vb2_buffer *vb2_buffer; + unsigned int width, height; dma_addr_t address; + u32 pixelformat; vb2_buffer = &csi_buffer->v4l2_buffer.vb2_buf; address = vb2_dma_contig_plane_dma_addr(vb2_buffer, 0); - sun6i_csi_update_buf_addr(csi_dev, address); + regmap_write(regmap, SUN6I_CSI_CH_FIFO0_ADDR_REG, + SUN6I_CSI_ADDR_VALUE(address)); + + sun6i_csi_capture_dimensions(csi_dev, &width, &height); + sun6i_csi_capture_format(csi_dev, &pixelformat, NULL); + + info = v4l2_format_info(pixelformat); + /* Unsupported formats are single-plane, so we can stop here. */ + if (!info) + return; + + if (info->comp_planes > 1) { + address += info->bpp[0] * width * height; + + regmap_write(regmap, SUN6I_CSI_CH_FIFO1_ADDR_REG, + SUN6I_CSI_ADDR_VALUE(address)); + } + + if (info->comp_planes > 2) { + address += info->bpp[1] * DIV_ROUND_UP(width, info->hdiv) * + DIV_ROUND_UP(height, info->vdiv); + + regmap_write(regmap, SUN6I_CSI_CH_FIFO2_ADDR_REG, + SUN6I_CSI_ADDR_VALUE(address)); + } } static void sun6i_csi_capture_configure(struct sun6i_csi_device *csi_dev) |