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>
86 lines
3.5 KiB
C
86 lines
3.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#define DTLK_MINOR 0
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#define DTLK_IO_EXTENT 0x02
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/* ioctl's use magic number of 0xa3 */
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#define DTLK_INTERROGATE 0xa390 /* get settings from the DoubleTalk */
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#define DTLK_STATUS 0xa391 /* get status from the DoubleTalk */
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#define DTLK_CLEAR 0x18 /* stops speech */
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#define DTLK_MAX_RETRIES (loops_per_jiffy/(10000/HZ))
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/* TTS Port Status Flags */
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#define TTS_READABLE 0x80 /* mask for bit which is nonzero if a
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byte can be read from the TTS port */
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#define TTS_SPEAKING 0x40 /* mask for SYNC bit, which is nonzero
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while DoubleTalk is producing
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output with TTS, PCM or CVSD
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synthesizers or tone generators
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(that is, all but LPC) */
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#define TTS_SPEAKING2 0x20 /* mask for SYNC2 bit,
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which falls to zero up to 0.4 sec
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before speech stops */
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#define TTS_WRITABLE 0x10 /* mask for RDY bit, which when set to
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1, indicates the TTS port is ready
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to accept a byte of data. The RDY
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bit goes zero 2-3 usec after
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writing, and goes 1 again 180-190
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usec later. */
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#define TTS_ALMOST_FULL 0x08 /* mask for AF bit: When set to 1,
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indicates that less than 300 free
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bytes are available in the TTS
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input buffer. AF is always 0 in the
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PCM, TGN and CVSD modes. */
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#define TTS_ALMOST_EMPTY 0x04 /* mask for AE bit: When set to 1,
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indicates that less than 300 bytes
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of data remain in DoubleTalk's
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input (TTS or PCM) buffer. AE is
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always 1 in the TGN and CVSD
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modes. */
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/* LPC speak commands */
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#define LPC_5220_NORMAL 0x60 /* 5220 format decoding table, normal rate */
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#define LPC_5220_FAST 0x64 /* 5220 format decoding table, fast rate */
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#define LPC_D6_NORMAL 0x20 /* D6 format decoding table, normal rate */
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#define LPC_D6_FAST 0x24 /* D6 format decoding table, fast rate */
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/* LPC Port Status Flags (valid only after one of the LPC
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speak commands) */
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#define LPC_SPEAKING 0x80 /* mask for TS bit: When set to 1,
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indicates the LPC synthesizer is
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producing speech.*/
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#define LPC_BUFFER_LOW 0x40 /* mask for BL bit: When set to 1,
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indicates that the hardware LPC
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data buffer has less than 30 bytes
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remaining. (Total internal buffer
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size = 4096 bytes.) */
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#define LPC_BUFFER_EMPTY 0x20 /* mask for BE bit: When set to 1,
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indicates that the LPC data buffer
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ran out of data (error condition if
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TS is also 1). */
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/* data returned by Interrogate command */
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struct dtlk_settings
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{
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unsigned short serial_number; /* 0-7Fh:0-7Fh */
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unsigned char rom_version[24]; /* null terminated string */
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unsigned char mode; /* 0=Character; 1=Phoneme; 2=Text */
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unsigned char punc_level; /* nB; 0-7 */
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unsigned char formant_freq; /* nF; 0-9 */
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unsigned char pitch; /* nP; 0-99 */
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unsigned char speed; /* nS; 0-9 */
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unsigned char volume; /* nV; 0-9 */
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unsigned char tone; /* nX; 0-2 */
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unsigned char expression; /* nE; 0-9 */
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unsigned char ext_dict_loaded; /* 1=exception dictionary loaded */
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unsigned char ext_dict_status; /* 1=exception dictionary enabled */
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unsigned char free_ram; /* # pages (truncated) remaining for
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text buffer */
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unsigned char articulation; /* nA; 0-9 */
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unsigned char reverb; /* nR; 0-9 */
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unsigned char eob; /* 7Fh value indicating end of
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parameter block */
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unsigned char has_indexing; /* nonzero if indexing is implemented */
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};
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