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![Greg Kroah-Hartman](/assets/img/avatar_default.png)
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>
299 lines
8.2 KiB
C
299 lines
8.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef LINUX_SSB_PRIVATE_H_
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#define LINUX_SSB_PRIVATE_H_
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#include <linux/ssb/ssb.h>
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#include <linux/types.h>
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#include <linux/bcm47xx_wdt.h>
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#define PFX "ssb: "
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#ifdef CONFIG_SSB_SILENT
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# define ssb_printk(fmt, ...) \
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do { if (0) printk(fmt, ##__VA_ARGS__); } while (0)
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#else
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# define ssb_printk(fmt, ...) \
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printk(fmt, ##__VA_ARGS__)
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#endif /* CONFIG_SSB_SILENT */
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#define ssb_emerg(fmt, ...) ssb_printk(KERN_EMERG PFX fmt, ##__VA_ARGS__)
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#define ssb_err(fmt, ...) ssb_printk(KERN_ERR PFX fmt, ##__VA_ARGS__)
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#define ssb_warn(fmt, ...) ssb_printk(KERN_WARNING PFX fmt, ##__VA_ARGS__)
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#define ssb_notice(fmt, ...) ssb_printk(KERN_NOTICE PFX fmt, ##__VA_ARGS__)
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#define ssb_info(fmt, ...) ssb_printk(KERN_INFO PFX fmt, ##__VA_ARGS__)
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#define ssb_cont(fmt, ...) ssb_printk(KERN_CONT fmt, ##__VA_ARGS__)
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/* dprintk: Debugging printk; vanishes for non-debug compilation */
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#ifdef CONFIG_SSB_DEBUG
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# define ssb_dbg(fmt, ...) \
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ssb_printk(KERN_DEBUG PFX fmt, ##__VA_ARGS__)
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#else
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# define ssb_dbg(fmt, ...) \
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do { if (0) printk(KERN_DEBUG PFX fmt, ##__VA_ARGS__); } while (0)
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#endif
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#ifdef CONFIG_SSB_DEBUG
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# define SSB_WARN_ON(x) WARN_ON(x)
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# define SSB_BUG_ON(x) BUG_ON(x)
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#else
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static inline int __ssb_do_nothing(int x) { return x; }
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# define SSB_WARN_ON(x) __ssb_do_nothing(unlikely(!!(x)))
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# define SSB_BUG_ON(x) __ssb_do_nothing(unlikely(!!(x)))
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#endif
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/* pci.c */
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#ifdef CONFIG_SSB_PCIHOST
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extern int ssb_pci_switch_core(struct ssb_bus *bus,
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struct ssb_device *dev);
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extern int ssb_pci_switch_coreidx(struct ssb_bus *bus,
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u8 coreidx);
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extern int ssb_pci_xtal(struct ssb_bus *bus, u32 what,
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int turn_on);
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extern int ssb_pci_get_invariants(struct ssb_bus *bus,
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struct ssb_init_invariants *iv);
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extern void ssb_pci_exit(struct ssb_bus *bus);
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extern int ssb_pci_init(struct ssb_bus *bus);
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extern const struct ssb_bus_ops ssb_pci_ops;
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#else /* CONFIG_SSB_PCIHOST */
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static inline int ssb_pci_switch_core(struct ssb_bus *bus,
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struct ssb_device *dev)
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{
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return 0;
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}
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static inline int ssb_pci_switch_coreidx(struct ssb_bus *bus,
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u8 coreidx)
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{
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return 0;
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}
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static inline int ssb_pci_xtal(struct ssb_bus *bus, u32 what,
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int turn_on)
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{
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return 0;
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}
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static inline void ssb_pci_exit(struct ssb_bus *bus)
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{
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}
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static inline int ssb_pci_init(struct ssb_bus *bus)
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{
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return 0;
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}
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#endif /* CONFIG_SSB_PCIHOST */
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/* pcmcia.c */
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#ifdef CONFIG_SSB_PCMCIAHOST
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extern int ssb_pcmcia_switch_coreidx(struct ssb_bus *bus,
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u8 coreidx);
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extern int ssb_pcmcia_switch_segment(struct ssb_bus *bus,
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u8 seg);
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extern int ssb_pcmcia_get_invariants(struct ssb_bus *bus,
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struct ssb_init_invariants *iv);
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extern int ssb_pcmcia_hardware_setup(struct ssb_bus *bus);
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extern void ssb_pcmcia_exit(struct ssb_bus *bus);
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extern int ssb_pcmcia_init(struct ssb_bus *bus);
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extern int ssb_host_pcmcia_init(void);
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extern void ssb_host_pcmcia_exit(void);
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extern const struct ssb_bus_ops ssb_pcmcia_ops;
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#else /* CONFIG_SSB_PCMCIAHOST */
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static inline int ssb_pcmcia_switch_coreidx(struct ssb_bus *bus,
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u8 coreidx)
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{
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return 0;
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}
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static inline int ssb_pcmcia_switch_segment(struct ssb_bus *bus,
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u8 seg)
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{
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return 0;
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}
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static inline int ssb_pcmcia_hardware_setup(struct ssb_bus *bus)
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{
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return 0;
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}
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static inline void ssb_pcmcia_exit(struct ssb_bus *bus)
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{
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}
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static inline int ssb_pcmcia_init(struct ssb_bus *bus)
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{
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return 0;
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}
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static inline int ssb_host_pcmcia_init(void)
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{
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return 0;
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}
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static inline void ssb_host_pcmcia_exit(void)
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{
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}
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#endif /* CONFIG_SSB_PCMCIAHOST */
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/* sdio.c */
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#ifdef CONFIG_SSB_SDIOHOST
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extern int ssb_sdio_get_invariants(struct ssb_bus *bus,
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struct ssb_init_invariants *iv);
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extern u32 ssb_sdio_scan_read32(struct ssb_bus *bus, u16 offset);
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extern int ssb_sdio_scan_switch_coreidx(struct ssb_bus *bus, u8 coreidx);
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extern void ssb_sdio_exit(struct ssb_bus *bus);
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extern int ssb_sdio_init(struct ssb_bus *bus);
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extern const struct ssb_bus_ops ssb_sdio_ops;
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#else /* CONFIG_SSB_SDIOHOST */
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static inline u32 ssb_sdio_scan_read32(struct ssb_bus *bus, u16 offset)
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{
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return 0;
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}
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static inline int ssb_sdio_scan_switch_coreidx(struct ssb_bus *bus, u8 coreidx)
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{
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return 0;
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}
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static inline void ssb_sdio_exit(struct ssb_bus *bus)
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{
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}
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static inline int ssb_sdio_init(struct ssb_bus *bus)
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{
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return 0;
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}
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#endif /* CONFIG_SSB_SDIOHOST */
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/**************************************************
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* host_soc.c
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**************************************************/
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#ifdef CONFIG_SSB_HOST_SOC
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extern const struct ssb_bus_ops ssb_host_soc_ops;
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extern int ssb_host_soc_get_invariants(struct ssb_bus *bus,
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struct ssb_init_invariants *iv);
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#endif
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/* scan.c */
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extern const char *ssb_core_name(u16 coreid);
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extern int ssb_bus_scan(struct ssb_bus *bus,
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unsigned long baseaddr);
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extern void ssb_iounmap(struct ssb_bus *ssb);
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/* sprom.c */
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extern
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ssize_t ssb_attr_sprom_show(struct ssb_bus *bus, char *buf,
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int (*sprom_read)(struct ssb_bus *bus, u16 *sprom));
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extern
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ssize_t ssb_attr_sprom_store(struct ssb_bus *bus,
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const char *buf, size_t count,
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int (*sprom_check_crc)(const u16 *sprom, size_t size),
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int (*sprom_write)(struct ssb_bus *bus, const u16 *sprom));
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extern int ssb_fill_sprom_with_fallback(struct ssb_bus *bus,
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struct ssb_sprom *out);
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/* core.c */
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extern u32 ssb_calc_clock_rate(u32 plltype, u32 n, u32 m);
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extern struct ssb_bus *ssb_pci_dev_to_bus(struct pci_dev *pdev);
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int ssb_for_each_bus_call(unsigned long data,
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int (*func)(struct ssb_bus *bus, unsigned long data));
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extern struct ssb_bus *ssb_pcmcia_dev_to_bus(struct pcmcia_device *pdev);
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struct ssb_freeze_context {
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/* Pointer to the bus */
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struct ssb_bus *bus;
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/* Boolean list to indicate whether a device is frozen on this bus. */
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bool device_frozen[SSB_MAX_NR_CORES];
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};
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extern int ssb_devices_freeze(struct ssb_bus *bus, struct ssb_freeze_context *ctx);
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extern int ssb_devices_thaw(struct ssb_freeze_context *ctx);
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/* b43_pci_bridge.c */
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#ifdef CONFIG_SSB_B43_PCI_BRIDGE
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extern int __init b43_pci_ssb_bridge_init(void);
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extern void __exit b43_pci_ssb_bridge_exit(void);
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#else /* CONFIG_SSB_B43_PCI_BRIDGE */
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static inline int b43_pci_ssb_bridge_init(void)
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{
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return 0;
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}
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static inline void b43_pci_ssb_bridge_exit(void)
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{
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}
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#endif /* CONFIG_SSB_B43_PCI_BRIDGE */
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/* driver_chipcommon_pmu.c */
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extern u32 ssb_pmu_get_cpu_clock(struct ssb_chipcommon *cc);
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extern u32 ssb_pmu_get_controlclock(struct ssb_chipcommon *cc);
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extern u32 ssb_pmu_get_alp_clock(struct ssb_chipcommon *cc);
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extern u32 ssb_chipco_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt,
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u32 ticks);
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extern u32 ssb_chipco_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms);
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/* driver_chipcommon_sflash.c */
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#ifdef CONFIG_SSB_SFLASH
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int ssb_sflash_init(struct ssb_chipcommon *cc);
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#else
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static inline int ssb_sflash_init(struct ssb_chipcommon *cc)
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{
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pr_err("Serial flash not supported\n");
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return 0;
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}
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#endif /* CONFIG_SSB_SFLASH */
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#ifdef CONFIG_SSB_DRIVER_MIPS
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extern struct platform_device ssb_pflash_dev;
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#endif
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#ifdef CONFIG_SSB_SFLASH
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extern struct platform_device ssb_sflash_dev;
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#endif
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#ifdef CONFIG_SSB_DRIVER_EXTIF
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extern u32 ssb_extif_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt, u32 ticks);
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extern u32 ssb_extif_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms);
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#else
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static inline u32 ssb_extif_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt,
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u32 ticks)
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{
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return 0;
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}
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static inline u32 ssb_extif_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt,
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u32 ms)
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{
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return 0;
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}
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#endif
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#ifdef CONFIG_SSB_EMBEDDED
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extern int ssb_watchdog_register(struct ssb_bus *bus);
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#else /* CONFIG_SSB_EMBEDDED */
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static inline int ssb_watchdog_register(struct ssb_bus *bus)
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{
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return 0;
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}
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#endif /* CONFIG_SSB_EMBEDDED */
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#ifdef CONFIG_SSB_DRIVER_EXTIF
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extern void ssb_extif_init(struct ssb_extif *extif);
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#else
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static inline void ssb_extif_init(struct ssb_extif *extif)
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{
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}
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#endif
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#ifdef CONFIG_SSB_DRIVER_GPIO
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extern int ssb_gpio_init(struct ssb_bus *bus);
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extern int ssb_gpio_unregister(struct ssb_bus *bus);
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#else /* CONFIG_SSB_DRIVER_GPIO */
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static inline int ssb_gpio_init(struct ssb_bus *bus)
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{
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return -ENOTSUPP;
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}
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static inline int ssb_gpio_unregister(struct ssb_bus *bus)
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{
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return 0;
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}
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#endif /* CONFIG_SSB_DRIVER_GPIO */
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#endif /* LINUX_SSB_PRIVATE_H_ */
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