media: Add timberdale video-in driver
PATCH v2 1/2 media: Add timberdale video-in driver
This patch adds the timberdale video-in driver.
The video IP of timberdale delivers the video data via DMA. The driver uses the DMA api to handle DMA transfers, and make use of the V4L2 videobuffers to handle buffers against user space. Due to some timing constraint it makes sense to do DMA into an intermediate buffer and then copy the data to vmalloc:ed buffers.
If available the driver uses an encoder to get/set the video standard
In addition to first version, the Makefile update is included in the patch
Signed-off-by Richard Röjfors <[email protected]>
---
drivers/media/video/Kconfig +9 -0
@@ -949,6 +949,15 @@ config VIDEO_OMAP2 ---help--- This is a v4l2 driver for the TI OMAP2 camera capture interface +config VIDEO_TIMBERDALE + tristate "Support for timberdale Video In/LogiWIN" + depends on VIDEO_V4L2 && I2C + select TIMB_DMA + select VIDEO_ADV7180 + select VIDEOBUF_VMALLOC + ---help--- + Add support for the Video In peripherial of the timberdale FPGA. + # # USB Multimedia device configuration #
drivers/media/video/Makefile +2 -0
@@ -164,6 +164,8 @@ obj-$(CONFIG_ARCH_DAVINCI) += davinci/ obj-$(CONFIG_VIDEO_AU0828) += au0828/ +obj-$(CONFIG_VIDEO_TIMBERDALE) += timblogiw.o + obj-$(CONFIG_USB_VIDEO_CLASS) += uvc/ obj-$(CONFIG_VIDEO_SAA7164) += saa7164/
drivers/media/video/timblogiw.c new file +920 -0
920 lines not on this page · raw message
include/media/timb_video.h new file +34 -0
@@ -0,0 +1,34 @@ +/* +* timb_video.h Platform struct for the Timberdale video driver +* Copyright (c) 2009-2010 Intel Corporation +* +* 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. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program; if not, write to the Free Software +* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#ifndef _TIMB_VIDEO_ +#define _TIMB_VIDEO_ 1 + +#include <linux/i2c.h> + +struct timb_video_platform_data { +int dma_channel; +int i2c_adapter;/* The I2C adapter where the encoder is attached */ +struct { +const char *module_name; +struct i2c_board_info *info; + } encoder; +}; + +#endif +