License cleanup: add SPDX GPL-2.0 license identifier to files with no license
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>
2017-11-01 22:07:57 +08:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2005-04-17 06:20:36 +08:00
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/*
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* omap_udc.h -- for omap 3.2 udc, with OTG support
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*
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* 2004 (C) Texas Instruments, Inc.
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* 2004 (C) David Brownell
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*/
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/*
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* USB device/endpoint management registers
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*/
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2008-07-03 17:24:43 +08:00
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#define UDC_REV (UDC_BASE + 0x0) /* Revision */
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#define UDC_EP_NUM (UDC_BASE + 0x4) /* Which endpoint */
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2005-04-17 06:20:36 +08:00
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# define UDC_SETUP_SEL (1 << 6)
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# define UDC_EP_SEL (1 << 5)
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# define UDC_EP_DIR (1 << 4)
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/* low 4 bits for endpoint number */
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2008-07-03 17:24:43 +08:00
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#define UDC_DATA (UDC_BASE + 0x08) /* Endpoint FIFO */
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#define UDC_CTRL (UDC_BASE + 0x0C) /* Endpoint control */
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2005-04-17 06:20:36 +08:00
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# define UDC_CLR_HALT (1 << 7)
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# define UDC_SET_HALT (1 << 6)
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2005-04-29 04:52:31 +08:00
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# define UDC_CLRDATA_TOGGLE (1 << 3)
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2005-04-17 06:20:36 +08:00
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# define UDC_SET_FIFO_EN (1 << 2)
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# define UDC_CLR_EP (1 << 1)
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# define UDC_RESET_EP (1 << 0)
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2008-07-03 17:24:43 +08:00
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#define UDC_STAT_FLG (UDC_BASE + 0x10) /* Endpoint status */
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2005-04-17 06:20:36 +08:00
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# define UDC_NO_RXPACKET (1 << 15)
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# define UDC_MISS_IN (1 << 14)
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# define UDC_DATA_FLUSH (1 << 13)
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# define UDC_ISO_ERR (1 << 12)
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# define UDC_ISO_FIFO_EMPTY (1 << 9)
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# define UDC_ISO_FIFO_FULL (1 << 8)
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# define UDC_EP_HALTED (1 << 6)
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# define UDC_STALL (1 << 5)
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# define UDC_NAK (1 << 4)
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# define UDC_ACK (1 << 3)
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# define UDC_FIFO_EN (1 << 2)
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# define UDC_NON_ISO_FIFO_EMPTY (1 << 1)
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# define UDC_NON_ISO_FIFO_FULL (1 << 0)
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2008-07-03 17:24:43 +08:00
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#define UDC_RXFSTAT (UDC_BASE + 0x14) /* OUT bytecount */
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#define UDC_SYSCON1 (UDC_BASE + 0x18) /* System config 1 */
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2005-04-17 06:20:36 +08:00
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# define UDC_CFG_LOCK (1 << 8)
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# define UDC_DATA_ENDIAN (1 << 7)
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# define UDC_DMA_ENDIAN (1 << 6)
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# define UDC_NAK_EN (1 << 4)
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# define UDC_AUTODECODE_DIS (1 << 3)
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# define UDC_SELF_PWR (1 << 2)
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# define UDC_SOFF_DIS (1 << 1)
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# define UDC_PULLUP_EN (1 << 0)
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2008-07-03 17:24:43 +08:00
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#define UDC_SYSCON2 (UDC_BASE + 0x1C) /* System config 2 */
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2005-04-17 06:20:36 +08:00
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# define UDC_RMT_WKP (1 << 6)
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# define UDC_STALL_CMD (1 << 5)
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# define UDC_DEV_CFG (1 << 3)
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# define UDC_CLR_CFG (1 << 2)
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2008-07-03 17:24:43 +08:00
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#define UDC_DEVSTAT (UDC_BASE + 0x20) /* Device status */
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2005-04-17 06:20:36 +08:00
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# define UDC_B_HNP_ENABLE (1 << 9)
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# define UDC_A_HNP_SUPPORT (1 << 8)
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# define UDC_A_ALT_HNP_SUPPORT (1 << 7)
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# define UDC_R_WK_OK (1 << 6)
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# define UDC_USB_RESET (1 << 5)
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# define UDC_SUS (1 << 4)
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# define UDC_CFG (1 << 3)
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# define UDC_ADD (1 << 2)
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# define UDC_DEF (1 << 1)
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# define UDC_ATT (1 << 0)
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2008-07-03 17:24:43 +08:00
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#define UDC_SOF (UDC_BASE + 0x24) /* Start of frame */
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2005-04-17 06:20:36 +08:00
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# define UDC_FT_LOCK (1 << 12)
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# define UDC_TS_OK (1 << 11)
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# define UDC_TS 0x03ff
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2008-07-03 17:24:43 +08:00
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#define UDC_IRQ_EN (UDC_BASE + 0x28) /* Interrupt enable */
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2005-04-17 06:20:36 +08:00
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# define UDC_SOF_IE (1 << 7)
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# define UDC_EPN_RX_IE (1 << 5)
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# define UDC_EPN_TX_IE (1 << 4)
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# define UDC_DS_CHG_IE (1 << 3)
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# define UDC_EP0_IE (1 << 0)
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2008-07-03 17:24:43 +08:00
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#define UDC_DMA_IRQ_EN (UDC_BASE + 0x2C) /* DMA irq enable */
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2005-04-17 06:20:36 +08:00
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/* rx/tx dma channels numbered 1-3 not 0-2 */
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# define UDC_TX_DONE_IE(n) (1 << (4 * (n) - 2))
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# define UDC_RX_CNT_IE(n) (1 << (4 * (n) - 3))
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# define UDC_RX_EOT_IE(n) (1 << (4 * (n) - 4))
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2008-07-03 17:24:43 +08:00
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#define UDC_IRQ_SRC (UDC_BASE + 0x30) /* Interrupt source */
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2005-04-17 06:20:36 +08:00
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# define UDC_TXN_DONE (1 << 10)
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# define UDC_RXN_CNT (1 << 9)
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# define UDC_RXN_EOT (1 << 8)
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2008-07-03 17:24:43 +08:00
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# define UDC_IRQ_SOF (1 << 7)
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2005-04-17 06:20:36 +08:00
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# define UDC_EPN_RX (1 << 5)
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# define UDC_EPN_TX (1 << 4)
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# define UDC_DS_CHG (1 << 3)
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# define UDC_SETUP (1 << 2)
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# define UDC_EP0_RX (1 << 1)
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# define UDC_EP0_TX (1 << 0)
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# define UDC_IRQ_SRC_MASK 0x7bf
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2008-07-03 17:24:43 +08:00
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#define UDC_EPN_STAT (UDC_BASE + 0x34) /* EP irq status */
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#define UDC_DMAN_STAT (UDC_BASE + 0x38) /* DMA irq status */
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2005-04-17 06:20:36 +08:00
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# define UDC_DMA_RX_SB (1 << 12)
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# define UDC_DMA_RX_SRC(x) (((x)>>8) & 0xf)
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# define UDC_DMA_TX_SRC(x) (((x)>>0) & 0xf)
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/* DMA configuration registers: up to three channels in each direction. */
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2008-07-03 17:24:43 +08:00
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#define UDC_RXDMA_CFG (UDC_BASE + 0x40) /* 3 eps for RX DMA */
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2005-04-29 04:52:31 +08:00
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# define UDC_DMA_REQ (1 << 12)
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2008-07-03 17:24:43 +08:00
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#define UDC_TXDMA_CFG (UDC_BASE + 0x44) /* 3 eps for TX DMA */
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#define UDC_DATA_DMA (UDC_BASE + 0x48) /* rx/tx fifo addr */
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2005-04-17 06:20:36 +08:00
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/* rx/tx dma control, numbering channels 1-3 not 0-2 */
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2008-07-03 17:24:43 +08:00
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#define UDC_TXDMA(chan) (UDC_BASE + 0x50 - 4 + 4 * (chan))
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2005-04-17 06:20:36 +08:00
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# define UDC_TXN_EOT (1 << 15) /* bytes vs packets */
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# define UDC_TXN_START (1 << 14) /* start transfer */
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# define UDC_TXN_TSC 0x03ff /* units in xfer */
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2008-07-03 17:24:43 +08:00
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#define UDC_RXDMA(chan) (UDC_BASE + 0x60 - 4 + 4 * (chan))
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2005-04-17 06:20:36 +08:00
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# define UDC_RXN_STOP (1 << 15) /* enable EOT irq */
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# define UDC_RXN_TC 0x00ff /* packets in xfer */
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/*
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* Endpoint configuration registers (used before CFG_LOCK is set)
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2008-07-03 17:24:43 +08:00
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* UDC_EP_TX(0) is unused
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2005-04-17 06:20:36 +08:00
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*/
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2008-07-03 17:24:43 +08:00
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#define UDC_EP_RX(endpoint) (UDC_BASE + 0x80 + (endpoint)*4)
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2005-04-17 06:20:36 +08:00
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# define UDC_EPN_RX_VALID (1 << 15)
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# define UDC_EPN_RX_DB (1 << 14)
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/* buffer size in bits 13, 12 */
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# define UDC_EPN_RX_ISO (1 << 11)
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/* buffer pointer in low 11 bits */
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2008-07-03 17:24:43 +08:00
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#define UDC_EP_TX(endpoint) (UDC_BASE + 0xc0 + (endpoint)*4)
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/* same bitfields as in RX */
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2005-04-17 06:20:36 +08:00
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/*-------------------------------------------------------------------------*/
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struct omap_req {
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struct usb_request req;
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struct list_head queue;
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unsigned dma_bytes;
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unsigned mapped:1;
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};
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struct omap_ep {
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struct usb_ep ep;
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struct list_head queue;
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unsigned long irqs;
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struct list_head iso;
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char name[14];
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u16 maxpacket;
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u8 bEndpointAddress;
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u8 bmAttributes;
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unsigned double_buf:1;
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unsigned stopped:1;
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unsigned fnf:1;
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unsigned has_dma:1;
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u8 ackwait;
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u8 dma_channel;
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u16 dma_counter;
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int lch;
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struct omap_udc *udc;
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struct timer_list timer;
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};
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struct omap_udc {
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struct usb_gadget gadget;
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struct usb_gadget_driver *driver;
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spinlock_t lock;
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struct omap_ep ep[32];
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u16 devstat;
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2005-04-29 04:52:31 +08:00
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u16 clr_halt;
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2012-02-13 19:24:02 +08:00
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struct usb_phy *transceiver;
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2005-04-17 06:20:36 +08:00
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struct list_head iso;
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unsigned softconnect:1;
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unsigned vbus_active:1;
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unsigned ep0_pending:1;
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unsigned ep0_in:1;
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unsigned ep0_set_config:1;
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unsigned ep0_reset_config:1;
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unsigned ep0_setup:1;
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struct completion *done;
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2006-12-11 03:47:04 +08:00
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struct clk *dc_clk;
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struct clk *hhc_clk;
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unsigned clk_requested:1;
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2005-04-17 06:20:36 +08:00
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};
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/*-------------------------------------------------------------------------*/
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#ifdef VERBOSE
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# define VDBG DBG
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#else
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# define VDBG(stuff...) do{}while(0)
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#endif
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2007-11-20 04:58:36 +08:00
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#define ERR(stuff...) pr_err("udc: " stuff)
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2016-09-28 00:16:59 +08:00
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#define WARNING(stuff...) pr_warn("udc: " stuff)
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2007-11-20 04:58:36 +08:00
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#define INFO(stuff...) pr_info("udc: " stuff)
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#define DBG(stuff...) pr_debug("udc: " stuff)
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2005-04-17 06:20:36 +08:00
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/*-------------------------------------------------------------------------*/
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2008-07-03 17:24:43 +08:00
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/* MOD_CONF_CTRL_0 */
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#define VBUS_W2FC_1510 (1 << 17) /* 0 gpio0, 1 dvdd2 pin */
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2005-04-17 06:20:36 +08:00
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2008-07-03 17:24:43 +08:00
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/* FUNC_MUX_CTRL_0 */
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2005-04-17 06:20:36 +08:00
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#define VBUS_CTRL_1510 (1 << 19) /* 1 connected (software) */
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#define VBUS_MODE_1510 (1 << 18) /* 0 hardware, 1 software */
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2008-07-03 17:24:43 +08:00
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#define HMC_1510 ((omap_readl(MOD_CONF_CTRL_0) >> 1) & 0x3f)
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#define HMC_1610 (omap_readl(OTG_SYSCON_2) & 0x3f)
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2005-04-17 06:20:36 +08:00
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#define HMC (cpu_is_omap15xx() ? HMC_1510 : HMC_1610)
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