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b24413180f
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
199 lines
5.6 KiB
C
199 lines
5.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* sh7760fb.h -- platform data for SH7760/SH7763 LCDC framebuffer driver.
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*
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* (c) 2006-2008 MSC Vertriebsges.m.b.H.,
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* Manuel Lauss <mano@roarinelk.homelinux.net>
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* (c) 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
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*/
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#ifndef _ASM_SH_SH7760FB_H
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#define _ASM_SH_SH7760FB_H
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/*
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* some bits of the colormap registers should be written as zero.
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* create a mask for that.
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*/
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#define SH7760FB_PALETTE_MASK 0x00f8fcf8
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/* The LCDC dma engine always sets bits 27-26 to 1: this is Area3 */
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#define SH7760FB_DMA_MASK 0x0C000000
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/* palette */
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#define LDPR(x) (((x) << 2))
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/* framebuffer registers and bits */
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#define LDICKR 0x400
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#define LDMTR 0x402
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/* see sh7760fb.h for LDMTR bits */
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#define LDDFR 0x404
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#define LDDFR_PABD (1 << 8)
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#define LDDFR_COLOR_MASK 0x7F
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#define LDSMR 0x406
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#define LDSMR_ROT (1 << 13)
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#define LDSARU 0x408
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#define LDSARL 0x40c
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#define LDLAOR 0x410
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#define LDPALCR 0x412
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#define LDPALCR_PALS (1 << 4)
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#define LDPALCR_PALEN (1 << 0)
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#define LDHCNR 0x414
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#define LDHSYNR 0x416
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#define LDVDLNR 0x418
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#define LDVTLNR 0x41a
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#define LDVSYNR 0x41c
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#define LDACLNR 0x41e
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#define LDINTR 0x420
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#define LDPMMR 0x424
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#define LDPSPR 0x426
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#define LDCNTR 0x428
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#define LDCNTR_DON (1 << 0)
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#define LDCNTR_DON2 (1 << 4)
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#ifdef CONFIG_CPU_SUBTYPE_SH7763
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# define LDLIRNR 0x440
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/* LDINTR bit */
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# define LDINTR_MINTEN (1 << 15)
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# define LDINTR_FINTEN (1 << 14)
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# define LDINTR_VSINTEN (1 << 13)
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# define LDINTR_VEINTEN (1 << 12)
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# define LDINTR_MINTS (1 << 11)
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# define LDINTR_FINTS (1 << 10)
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# define LDINTR_VSINTS (1 << 9)
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# define LDINTR_VEINTS (1 << 8)
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# define VINT_START (LDINTR_VSINTEN)
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# define VINT_CHECK (LDINTR_VSINTS)
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#else
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/* LDINTR bit */
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# define LDINTR_VINTSEL (1 << 12)
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# define LDINTR_VINTE (1 << 8)
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# define LDINTR_VINTS (1 << 0)
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# define VINT_START (LDINTR_VINTSEL)
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# define VINT_CHECK (LDINTR_VINTS)
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#endif
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/* HSYNC polarity inversion */
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#define LDMTR_FLMPOL (1 << 15)
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/* VSYNC polarity inversion */
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#define LDMTR_CL1POL (1 << 14)
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/* DISPLAY-ENABLE polarity inversion */
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#define LDMTR_DISPEN_LOWACT (1 << 13)
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/* DISPLAY DATA BUS polarity inversion */
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#define LDMTR_DPOL_LOWACT (1 << 12)
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/* AC modulation signal enable */
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#define LDMTR_MCNT (1 << 10)
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/* Disable output of HSYNC during VSYNC period */
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#define LDMTR_CL1CNT (1 << 9)
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/* Disable output of VSYNC during VSYNC period */
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#define LDMTR_CL2CNT (1 << 8)
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/* Display types supported by the LCDC */
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#define LDMTR_STN_MONO_4 0x00
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#define LDMTR_STN_MONO_8 0x01
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#define LDMTR_STN_COLOR_4 0x08
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#define LDMTR_STN_COLOR_8 0x09
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#define LDMTR_STN_COLOR_12 0x0A
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#define LDMTR_STN_COLOR_16 0x0B
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#define LDMTR_DSTN_MONO_8 0x11
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#define LDMTR_DSTN_MONO_16 0x13
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#define LDMTR_DSTN_COLOR_8 0x19
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#define LDMTR_DSTN_COLOR_12 0x1A
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#define LDMTR_DSTN_COLOR_16 0x1B
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#define LDMTR_TFT_COLOR_16 0x2B
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/* framebuffer color layout */
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#define LDDFR_1BPP_MONO 0x00
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#define LDDFR_2BPP_MONO 0x01
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#define LDDFR_4BPP_MONO 0x02
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#define LDDFR_6BPP_MONO 0x04
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#define LDDFR_4BPP 0x0A
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#define LDDFR_8BPP 0x0C
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#define LDDFR_16BPP_RGB555 0x1D
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#define LDDFR_16BPP_RGB565 0x2D
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/* LCDC Pixclock sources */
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#define LCDC_CLKSRC_BUSCLOCK 0
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#define LCDC_CLKSRC_PERIPHERAL 1
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#define LCDC_CLKSRC_EXTERNAL 2
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#define LDICKR_CLKSRC(x) \
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(((x) & 3) << 12)
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/* LCDC pixclock input divider. Set to 1 at a minimum! */
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#define LDICKR_CLKDIV(x) \
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((x) & 0x1f)
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struct sh7760fb_platdata {
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/* Set this member to a valid fb_videmode for the display you
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* wish to use. The following members must be initialized:
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* xres, yres, hsync_len, vsync_len, sync,
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* {left,right,upper,lower}_margin.
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* The driver uses the above members to calculate register values
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* and memory requirements. Other members are ignored but may
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* be used by other framebuffer layer components.
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*/
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struct fb_videomode *def_mode;
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/* LDMTR includes display type and signal polarity. The
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* HSYNC/VSYNC polarities are derived from the fb_var_screeninfo
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* data above; however the polarities of the following signals
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* must be encoded in the ldmtr member:
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* Display Enable signal (default high-active) DISPEN_LOWACT
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* Display Data signals (default high-active) DPOL_LOWACT
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* AC Modulation signal (default off) MCNT
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* Hsync-During-Vsync suppression (default off) CL1CNT
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* Vsync-during-vsync suppression (default off) CL2CNT
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* NOTE: also set a display type!
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* (one of LDMTR_{STN,DSTN,TFT}_{MONO,COLOR}_{4,8,12,16})
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*/
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u16 ldmtr;
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/* LDDFR controls framebuffer image format (depth, organization)
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* Use ONE of the LDDFR_?BPP_* macros!
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*/
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u16 lddfr;
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/* LDPMMR and LDPSPR control the timing of the power signals
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* for the display. Please read the SH7760 Hardware Manual,
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* Chapters 30.3.17, 30.3.18 and 30.4.6!
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*/
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u16 ldpmmr;
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u16 ldpspr;
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/* LDACLNR contains the line numbers after which the AC modulation
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* signal is to toggle. Set to ZERO for TFTs or displays which
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* do not need it. (Chapter 30.3.15 in SH7760 Hardware Manual).
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*/
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u16 ldaclnr;
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/* LDICKR contains information on pixelclock source and config.
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* Please use the LDICKR_CLKSRC() and LDICKR_CLKDIV() macros.
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* minimal value for CLKDIV() must be 1!.
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*/
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u16 ldickr;
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/* set this member to 1 if you wish to use the LCDC's hardware
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* rotation function. This is limited to displays <= 320x200
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* pixels resolution!
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*/
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int rotate; /* set to 1 to rotate 90 CCW */
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/* set this to 1 to suppress vsync irq use. */
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int novsync;
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/* blanking hook for platform. Set this if your platform can do
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* more than the LCDC in terms of blanking (e.g. disable clock
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* generator / backlight power supply / etc.
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*/
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void (*blank) (int);
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};
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#endif /* _ASM_SH_SH7760FB_H */
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