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path: root/drivers/media/video/soc_mediabus.c
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Diffstat (limited to 'drivers/media/video/soc_mediabus.c')
-rw-r--r--drivers/media/video/soc_mediabus.c157
1 files changed, 157 insertions, 0 deletions
diff --git a/drivers/media/video/soc_mediabus.c b/drivers/media/video/soc_mediabus.c
new file mode 100644
index 0000000..f8d5c87
--- /dev/null
+++ b/drivers/media/video/soc_mediabus.c
@@ -0,0 +1,157 @@
+/*
+ * soc-camera media bus helper routines
+ *
+ * Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <media/v4l2-device.h>
+#include <media/v4l2-mediabus.h>
+#include <media/soc_mediabus.h>
+
+#define MBUS_IDX(f) (V4L2_MBUS_FMT_ ## f - V4L2_MBUS_FMT_FIXED - 1)
+
+static const struct soc_mbus_pixelfmt mbus_fmt[] = {
+ [MBUS_IDX(YUYV8_2X8_LE)] = {
+ .fourcc = V4L2_PIX_FMT_YUYV,
+ .name = "YUYV",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADHI,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(YVYU8_2X8_LE)] = {
+ .fourcc = V4L2_PIX_FMT_YVYU,
+ .name = "YVYU",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADHI,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(YUYV8_2X8_BE)] = {
+ .fourcc = V4L2_PIX_FMT_UYVY,
+ .name = "UYVY",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADHI,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(YVYU8_2X8_BE)] = {
+ .fourcc = V4L2_PIX_FMT_VYUY,
+ .name = "VYUY",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADHI,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(RGB555_2X8_PADHI_LE)] = {
+ .fourcc = V4L2_PIX_FMT_RGB555,
+ .name = "RGB555",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADHI,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(RGB555_2X8_PADHI_BE)] = {
+ .fourcc = V4L2_PIX_FMT_RGB555X,
+ .name = "RGB555X",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADHI,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(RGB565_2X8_LE)] = {
+ .fourcc = V4L2_PIX_FMT_RGB565,
+ .name = "RGB565",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADHI,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(RGB565_2X8_BE)] = {
+ .fourcc = V4L2_PIX_FMT_RGB565X,
+ .name = "RGB565X",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADHI,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(SBGGR8_1X8)] = {
+ .fourcc = V4L2_PIX_FMT_SBGGR8,
+ .name = "Bayer 8 BGGR",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_NONE,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(SBGGR10_1X10)] = {
+ .fourcc = V4L2_PIX_FMT_SBGGR10,
+ .name = "Bayer 10 BGGR",
+ .bits_per_sample = 10,
+ .packing = SOC_MBUS_PACKING_EXTEND16,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(GREY8_1X8)] = {
+ .fourcc = V4L2_PIX_FMT_GREY,
+ .name = "Grey",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_NONE,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(Y10_1X10)] = {
+ .fourcc = V4L2_PIX_FMT_Y10,
+ .name = "Grey 10bit",
+ .bits_per_sample = 10,
+ .packing = SOC_MBUS_PACKING_EXTEND16,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(SBGGR10_2X8_PADHI_LE)] = {
+ .fourcc = V4L2_PIX_FMT_SBGGR10,
+ .name = "Bayer 10 BGGR",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADHI,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(SBGGR10_2X8_PADLO_LE)] = {
+ .fourcc = V4L2_PIX_FMT_SBGGR10,
+ .name = "Bayer 10 BGGR",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADLO,
+ .order = SOC_MBUS_ORDER_LE,
+ }, [MBUS_IDX(SBGGR10_2X8_PADHI_BE)] = {
+ .fourcc = V4L2_PIX_FMT_SBGGR10,
+ .name = "Bayer 10 BGGR",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADHI,
+ .order = SOC_MBUS_ORDER_BE,
+ }, [MBUS_IDX(SBGGR10_2X8_PADLO_BE)] = {
+ .fourcc = V4L2_PIX_FMT_SBGGR10,
+ .name = "Bayer 10 BGGR",
+ .bits_per_sample = 8,
+ .packing = SOC_MBUS_PACKING_2X8_PADLO,
+ .order = SOC_MBUS_ORDER_BE,
+ },
+};
+
+s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf)
+{
+ switch (mf->packing) {
+ case SOC_MBUS_PACKING_NONE:
+ return width * mf->bits_per_sample / 8;
+ case SOC_MBUS_PACKING_2X8_PADHI:
+ case SOC_MBUS_PACKING_2X8_PADLO:
+ case SOC_MBUS_PACKING_EXTEND16:
+ return width * 2;
+ }
+ return -EINVAL;
+}
+EXPORT_SYMBOL(soc_mbus_bytes_per_line);
+
+const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc(
+ enum v4l2_mbus_pixelcode code)
+{
+ if ((unsigned int)(code - V4L2_MBUS_FMT_FIXED) > ARRAY_SIZE(mbus_fmt))
+ return NULL;
+ return mbus_fmt + code - V4L2_MBUS_FMT_FIXED - 1;
+}
+EXPORT_SYMBOL(soc_mbus_get_fmtdesc);
+
+static int __init soc_mbus_init(void)
+{
+ return 0;
+}
+
+static void __exit soc_mbus_exit(void)
+{
+}
+
+module_init(soc_mbus_init);
+module_exit(soc_mbus_exit);
+
+MODULE_DESCRIPTION("soc-camera media bus interface");
+MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
+MODULE_LICENSE("GPL v2");