| /* |
| * SoC-camera Media Bus API extensions |
| * |
| * 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. |
| */ |
| |
| #ifndef SOC_MEDIABUS_H |
| #define SOC_MEDIABUS_H |
| |
| #include <linux/videodev2.h> |
| #include <linux/v4l2-mediabus.h> |
| |
| /** |
| * enum soc_mbus_packing - data packing types on the media-bus |
| * @SOC_MBUS_PACKING_NONE: no packing, bit-for-bit transfer to RAM |
| * @SOC_MBUS_PACKING_2X8_PADHI: 16 bits transferred in 2 8-bit samples, in the |
| * possibly incomplete byte high bits are padding |
| * @SOC_MBUS_PACKING_2X8_PADLO: as above, but low bits are padding |
| * @SOC_MBUS_PACKING_EXTEND16: sample width (e.g., 10 bits) has to be extended |
| * to 16 bits |
| */ |
| enum soc_mbus_packing { |
| SOC_MBUS_PACKING_NONE, |
| SOC_MBUS_PACKING_2X8_PADHI, |
| SOC_MBUS_PACKING_2X8_PADLO, |
| SOC_MBUS_PACKING_EXTEND16, |
| }; |
| |
| /** |
| * enum soc_mbus_order - sample order on the media bus |
| * @SOC_MBUS_ORDER_LE: least significant sample first |
| * @SOC_MBUS_ORDER_BE: most significant sample first |
| */ |
| enum soc_mbus_order { |
| SOC_MBUS_ORDER_LE, |
| SOC_MBUS_ORDER_BE, |
| }; |
| |
| /** |
| * struct soc_mbus_pixelfmt - Data format on the media bus |
| * @name: Name of the format |
| * @fourcc: Fourcc code, that will be obtained if the data is |
| * stored in memory in the following way: |
| * @packing: Type of sample-packing, that has to be used |
| * @order: Sample order when storing in memory |
| * @bits_per_sample: How many bits the bridge has to sample |
| */ |
| struct soc_mbus_pixelfmt { |
| const char *name; |
| u32 fourcc; |
| enum soc_mbus_packing packing; |
| enum soc_mbus_order order; |
| u8 bits_per_sample; |
| }; |
| |
| const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc( |
| enum v4l2_mbus_pixelcode code); |
| s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf); |
| |
| #endif |