From a49d25364dfb9f8a64037488a39ab1f56c5fa419 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Fri, 17 Feb 2017 16:55:17 +0000 Subject: staging/atomisp: Add support for the Intel IPU v2 This patch adds support for the Intel IPU v2 as found on Android and IoT Baytrail-T and Baytrail-CR platforms (those with the IPU PCI mapped). You will also need the firmware files from your device (Android usually puts them into /etc) - or you can find them in the downloadable restore/upgrade kits if you blew them away for some reason. It may be possible to extend the driver to handle the BYT/T windows platforms such as the ASUS T100TA. These platforms don't expose the IPU via the PCI interface but via ACPI buried in the GPU description and with the camera information somewhere unknown so would need a platform driver interface adding to the codebase *IFF* the firmware works on such devices. To get good results you also need a suitable support library such as libxcam. The camera is intended to be driven from Android so it has a lot of features that many desktop apps don't fully spport. In theory all the pieces are there to build it with -DISP2401 and some differing files to get CherryTrail/T support, but unifying the drivers properlly is a work in progress. The IPU driver represents the work of a lot of people within Intel over many years. It's historical goal was portability rather than Linux upstream. Any queries about the upstream aimed driver should be sent to me not to the original authors. Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- .../css2400/isp/modes/interface/input_buf.isp.h | 73 ++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 drivers/staging/media/atomisp/pci/atomisp2/css2400/isp/modes/interface/input_buf.isp.h (limited to 'drivers/staging/media/atomisp/pci/atomisp2/css2400/isp/modes/interface/input_buf.isp.h') diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/isp/modes/interface/input_buf.isp.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/isp/modes/interface/input_buf.isp.h new file mode 100644 index 0000000..32714d5 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/isp/modes/interface/input_buf.isp.h @@ -0,0 +1,73 @@ +#ifndef ISP2401 +/* + * Support for Intel Camera Imaging ISP subsystem. + * Copyright (c) 2015, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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. + */ +#else +/** +Support for Intel Camera Imaging ISP subsystem. +Copyright (c) 2010 - 2015, Intel Corporation. + +This program is free software; you can redistribute it and/or modify it +under the terms and conditions of the GNU General Public License, +version 2, as published by the Free Software Foundation. + +This program is distributed in the hope 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. +*/ +#endif + +#ifndef _INPUT_BUF_ISP_H_ +#define _INPUT_BUF_ISP_H_ + +/* Temporary include, since IA_CSS_BINARY_MODE_COPY is still needed */ +#include "sh_css_defs.h" +#include "isp_const.h" /* MAX_VECTORS_PER_INPUT_LINE */ + +#define INPUT_BUF_HEIGHT 2 /* double buffer */ +#define INPUT_BUF_LINES 2 + +#ifndef ENABLE_CONTINUOUS +#define ENABLE_CONTINUOUS 0 +#endif + +/* In continuous mode, the input buffer must be a fixed size for all binaries + * and at a fixed address since it will be used by the SP. */ +#define EXTRA_INPUT_VECTORS 2 /* For left padding */ +#define MAX_VECTORS_PER_INPUT_LINE_CONT (CEIL_DIV(SH_CSS_MAX_SENSOR_WIDTH, ISP_NWAY) + EXTRA_INPUT_VECTORS) + +/* The input buffer should be on a fixed address in vmem, for continuous capture */ +#define INPUT_BUF_ADDR 0x0 +#if (defined(__ISP) && (!defined(MODE) || MODE != IA_CSS_BINARY_MODE_COPY)) + +#if ENABLE_CONTINUOUS +typedef struct { + tmemvectoru raw[INPUT_BUF_HEIGHT][INPUT_BUF_LINES][MAX_VECTORS_PER_INPUT_LINE_CONT]; /* 2 bayer lines */ + /* Two more lines for SP raw copy efficiency */ +#ifndef ENABLE_REDUCED_INPUT_BUFFER + /* "Workaround" solution in the case that space needed vmem exceeds the size of the vmem. */ + /* Since in theory this buffer is not needed for IPU 2.2/2.3, */ + /* the workaround solution will not be needed (and the whole buffer) after the code refactoring. */ + tmemvectoru _raw[INPUT_BUF_HEIGHT][INPUT_BUF_LINES][MAX_VECTORS_PER_INPUT_LINE_CONT]; /* 2 bayer lines */ +#endif +} input_line_type; +#else /* ENABLE CONTINUOUS == 0 */ +typedef struct { + tmemvectoru raw[INPUT_BUF_HEIGHT][INPUT_BUF_LINES][MAX_VECTORS_PER_INPUT_LINE]; /* 2 bayer lines */ +} input_line_type; +#endif /* ENABLE_CONTINUOUS */ + +#endif /*MODE*/ + +#endif /* _INPUT_BUF_ISP_H_ */ -- cgit v1.1