diff mbox series

[v4,05/11] media: imx: utils: Simplify IPU format lookup and enumeration

Message ID 20200329205920.20118-6-slongerbeam@gmail.com
State New
Headers show
Series media: imx: Miscellaneous format-related cleanups | expand

Commit Message

Steve Longerbeam March 29, 2020, 8:59 p.m. UTC 
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The IPU formats are stored in two separate tables, one for YUV and one
for RGB formats. This complicates the lookup and enumeration function
without really increasing efficiency, as both tables contain a single
element. Merge the two tables and simplify the functions, and move the
resulting table next to the functions that use it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 drivers/staging/media/imx/imx-media-utils.c | 134 ++++++++------------
 1 file changed, 54 insertions(+), 80 deletions(-)
diff mbox series

Patch

diff --git a/drivers/staging/media/imx/imx-media-utils.c b/drivers/staging/media/imx/imx-media-utils.c
index 6a3b0b737e5f..981a8b540a3c 100644
--- a/drivers/staging/media/imx/imx-media-utils.c
+++ b/drivers/staging/media/imx/imx-media-utils.c
@@ -186,30 +186,6 @@  static const struct imx_media_pixfmt pixel_formats[] = {
 	},
 };
 
-static const struct imx_media_pixfmt ipu_yuv_formats[] = {
-	{
-		.fourcc = V4L2_PIX_FMT_YUV32,
-		.codes  = {MEDIA_BUS_FMT_AYUV8_1X32},
-		.cs     = IPUV3_COLORSPACE_YUV,
-		.bpp    = 32,
-		.ipufmt = true,
-	},
-};
-
-#define NUM_IPU_YUV_FORMATS ARRAY_SIZE(ipu_yuv_formats)
-
-static const struct imx_media_pixfmt ipu_rgb_formats[] = {
-	{
-		.fourcc	= V4L2_PIX_FMT_XRGB32,
-		.codes  = {MEDIA_BUS_FMT_ARGB8888_1X32},
-		.cs     = IPUV3_COLORSPACE_RGB,
-		.bpp    = 32,
-		.ipufmt = true,
-	},
-};
-
-#define NUM_IPU_RGB_FORMATS ARRAY_SIZE(ipu_rgb_formats)
-
 static const struct imx_media_pixfmt *find_format(u32 fourcc,
 						  u32 code,
 						  enum codespace_sel cs_sel,
@@ -313,81 +289,79 @@  int imx_media_enum_mbus_format(u32 *code, u32 index, enum codespace_sel cs_sel)
 }
 EXPORT_SYMBOL_GPL(imx_media_enum_mbus_format);
 
+/* -----------------------------------------------------------------------------
+ * IPU Formats Lookup and Enumeration
+ */
+
+static const struct imx_media_pixfmt ipu_formats[] = {
+	{
+		.fourcc = V4L2_PIX_FMT_YUV32,
+		.codes  = {MEDIA_BUS_FMT_AYUV8_1X32},
+		.cs     = IPUV3_COLORSPACE_YUV,
+		.bpp    = 32,
+		.ipufmt = true,
+	}, {
+		.fourcc	= V4L2_PIX_FMT_XRGB32,
+		.codes  = {MEDIA_BUS_FMT_ARGB8888_1X32},
+		.cs     = IPUV3_COLORSPACE_RGB,
+		.bpp    = 32,
+		.ipufmt = true,
+	},
+};
+
 const struct imx_media_pixfmt *
 imx_media_find_ipu_format(u32 code, enum codespace_sel cs_sel)
 {
-	const struct imx_media_pixfmt *array, *fmt, *ret = NULL;
-	u32 array_size;
-	int i, j;
-
-	cs_sel &= ~CS_SEL_BAYER;
+	bool accept_yuv = cs_sel & CS_SEL_YUV;
+	bool accept_rgb = cs_sel & CS_SEL_RGB;
+	unsigned int i;
 
-	switch (cs_sel) {
-	case CS_SEL_YUV:
-		array_size = NUM_IPU_YUV_FORMATS;
-		array = ipu_yuv_formats;
-		break;
-	case CS_SEL_RGB:
-		array_size = NUM_IPU_RGB_FORMATS;
-		array = ipu_rgb_formats;
-		break;
-	case CS_SEL_YUV_RGB:
-		array_size = NUM_IPU_YUV_FORMATS + NUM_IPU_RGB_FORMATS;
-		array = ipu_yuv_formats;
-		break;
-	default:
+	if (!code)
 		return NULL;
-	}
 
-	for (i = 0; i < array_size; i++) {
-		if (cs_sel == CS_SEL_YUV_RGB && i >= NUM_IPU_YUV_FORMATS)
-			fmt = &ipu_rgb_formats[i - NUM_IPU_YUV_FORMATS];
-		else
-			fmt = &array[i];
+	for (i = 0; i < ARRAY_SIZE(ipu_formats); i++) {
+		const struct imx_media_pixfmt *fmt = &ipu_formats[i];
+		unsigned int j;
 
-		for (j = 0; code && fmt->codes[j]; j++) {
-			if (code == fmt->codes[j]) {
-				ret = fmt;
-				goto out;
-			}
+		if ((!accept_yuv && fmt->cs == IPUV3_COLORSPACE_YUV) ||
+		    (!accept_rgb && fmt->cs == IPUV3_COLORSPACE_RGB))
+			continue;
+
+		for (j = 0; j < ARRAY_SIZE(fmt->codes) && fmt->codes[j]; j++) {
+			if (code == fmt->codes[j])
+				return fmt;
 		}
 	}
 
-out:
-	return ret;
+	return NULL;
 }
 EXPORT_SYMBOL_GPL(imx_media_find_ipu_format);
 
 int imx_media_enum_ipu_format(u32 *code, u32 index, enum codespace_sel cs_sel)
 {
-	cs_sel &= ~CS_SEL_BAYER;
+	bool accept_yuv = cs_sel & CS_SEL_YUV;
+	bool accept_rgb = cs_sel & CS_SEL_RGB;
+	unsigned int i;
 
-	switch (cs_sel) {
-	case CS_SEL_YUV:
-		if (index >= NUM_IPU_YUV_FORMATS)
-			return -EINVAL;
-		*code = ipu_yuv_formats[index].codes[0];
-		break;
-	case CS_SEL_RGB:
-		if (index >= NUM_IPU_RGB_FORMATS)
-			return -EINVAL;
-		*code = ipu_rgb_formats[index].codes[0];
-		break;
-	case CS_SEL_YUV_RGB:
-		if (index >= NUM_IPU_YUV_FORMATS + NUM_IPU_RGB_FORMATS)
-			return -EINVAL;
-		if (index >= NUM_IPU_YUV_FORMATS) {
-			index -= NUM_IPU_YUV_FORMATS;
-			*code = ipu_rgb_formats[index].codes[0];
-		} else {
-			*code = ipu_yuv_formats[index].codes[0];
+	for (i = 0; i < ARRAY_SIZE(ipu_formats); i++) {
+		const struct imx_media_pixfmt *fmt = &ipu_formats[i];
+		unsigned int j;
+
+		if ((!accept_yuv && fmt->cs == IPUV3_COLORSPACE_YUV) ||
+		    (!accept_rgb && fmt->cs == IPUV3_COLORSPACE_RGB))
+			continue;
+
+		for (j = 0; j < ARRAY_SIZE(fmt->codes) && fmt->codes[j]; j++) {
+			if (index == 0) {
+				*code = fmt->codes[j];
+				return 0;
+			}
+
+			index--;
 		}
-		break;
-	default:
-		return -EINVAL;
 	}
 
-	return 0;
+	return -EINVAL;
 }
 EXPORT_SYMBOL_GPL(imx_media_enum_ipu_format);