WSL2-Linux-Kernel/arch/m68k/mac/macboing.c

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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 17:07:57 +03:00
// SPDX-License-Identifier: GPL-2.0
/*
* Mac bong noise generator. Note - we ought to put a boingy noise
* here 8)
*
* ----------------------------------------------------------------------
* 16.11.98:
* rewrote some functions, added support for Enhanced ASC (Quadras)
* after the NetBSD asc.c console bell patch by Colin Wood/Frederick Bruck
* Juergen Mellinger (juergen.mellinger@t-online.de)
*/
#include <linux/sched.h>
#include <linux/timer.h>
#include <asm/macintosh.h>
#include <asm/mac_asc.h>
static int mac_asc_inited;
/*
* dumb triangular wave table
*/
static __u8 mac_asc_wave_tab[ 0x800 ];
/*
* Alan's original sine table; needs interpolating to 0x800
* (hint: interpolate or hardwire [0 -> Pi/2[, it's symmetric)
*/
static const signed char sine_data[] = {
0, 39, 75, 103, 121, 127, 121, 103, 75, 39,
0, -39, -75, -103, -121, -127, -121, -103, -75, -39
};
/*
* where the ASC hides ...
*/
static volatile __u8* mac_asc_regs = ( void* )0x50F14000;
/*
* sample rate; is this a good default value?
*/
static unsigned long mac_asc_samplespersec = 11050;
static int mac_bell_duration;
static unsigned long mac_bell_phase; /* 0..2*Pi -> 0..0x800 (wavetable size) */
static unsigned long mac_bell_phasepersample;
/*
* some function protos
*/
static void mac_init_asc( void );
static void mac_nosound(struct timer_list *);
static void mac_quadra_start_bell( unsigned int, unsigned int, unsigned int );
static void mac_quadra_ring_bell(struct timer_list *);
static void mac_av_start_bell( unsigned int, unsigned int, unsigned int );
static void ( *mac_special_bell )( unsigned int, unsigned int, unsigned int );
/*
* our timer to start/continue/stop the bell
*/
timer: Remove expires and data arguments from DEFINE_TIMER Drop the arguments from the macro and adjust all callers with the following script: perl -pi -e 's/DEFINE_TIMER\((.*), 0, 0\);/DEFINE_TIMER($1);/g;' \ $(git grep DEFINE_TIMER | cut -d: -f1 | sort -u | grep -v timer.h) Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # for m68k parts Acked-by: Guenter Roeck <linux@roeck-us.net> # for watchdog parts Acked-by: David S. Miller <davem@davemloft.net> # for networking parts Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Kalle Valo <kvalo@codeaurora.org> # for wireless parts Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: linux-mips@linux-mips.org Cc: Petr Mladek <pmladek@suse.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Sebastian Reichel <sre@kernel.org> Cc: Kalle Valo <kvalo@qca.qualcomm.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: linux1394-devel@lists.sourceforge.net Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: linux-s390@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Ursula Braun <ubraun@linux.vnet.ibm.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Harish Patil <harish.patil@cavium.com> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Michael Reed <mdr@sgi.com> Cc: Manish Chopra <manish.chopra@cavium.com> Cc: Len Brown <len.brown@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: linux-pm@vger.kernel.org Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Tejun Heo <tj@kernel.org> Cc: Julian Wiedmann <jwi@linux.vnet.ibm.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Mark Gross <mark.gross@intel.com> Cc: linux-watchdog@vger.kernel.org Cc: linux-scsi@vger.kernel.org Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: Guenter Roeck <linux@roeck-us.net> Cc: netdev@vger.kernel.org Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linuxppc-dev@lists.ozlabs.org Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Link: https://lkml.kernel.org/r/1507159627-127660-11-git-send-email-keescook@chromium.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-10-05 02:27:04 +03:00
static DEFINE_TIMER(mac_sound_timer, mac_nosound);
/*
* Sort of initialize the sound chip (called from mac_mksound on the first
* beep).
*/
static void mac_init_asc( void )
{
int i;
/*
* do some machine specific initialization
* BTW:
* the NetBSD Quadra patch identifies the Enhanced Apple Sound Chip via
* mac_asc_regs[ 0x800 ] & 0xF0 != 0
* this makes no sense here, because we have to set the default sample
* rate anyway if we want correct frequencies
*/
switch ( macintosh_config->ident )
{
case MAC_MODEL_IIFX:
/*
* The IIfx is always special ...
*/
mac_asc_regs = ( void* )0x50010000;
break;
/*
* not sure about how correct this list is
* machines with the EASC enhanced apple sound chip
*/
case MAC_MODEL_Q630:
case MAC_MODEL_P475:
mac_special_bell = mac_quadra_start_bell;
mac_asc_samplespersec = 22150;
break;
case MAC_MODEL_C660:
case MAC_MODEL_Q840:
/*
* The Quadra 660AV and 840AV use the "Singer" custom ASIC for sound I/O.
* It appears to be similar to the "AWACS" custom ASIC in the Power Mac
* [678]100. Because Singer and AWACS may have a similar hardware
* interface, this would imply that the code in drivers/sound/dmasound.c
* for AWACS could be used as a basis for Singer support. All we have to
* do is figure out how to do DMA on the 660AV/840AV through the PSC and
* figure out where the Singer hardware sits in memory. (I'd look in the
* vicinity of the AWACS location in a Power Mac [678]100 first, or the
* current location of the Apple Sound Chip--ASC--in other Macs.) The
* Power Mac [678]100 info can be found in MkLinux Mach kernel sources.
*
* Quoted from Apple's Tech Info Library, article number 16405:
* "Among desktop Macintosh computers, only the 660AV, 840AV, and Power
* Macintosh models have 16-bit audio input and output capability
* because of the AT&T DSP3210 hardware circuitry and the 16-bit Singer
* codec circuitry in the AVs. The Audio Waveform Amplifier and
* Converter (AWAC) chip in the Power Macintosh performs the same
* 16-bit I/O functionality. The PowerBook 500 series computers
* support 16-bit stereo output, but only mono input."
*
* Technical Information Library (TIL) article number 16405.
* https://support.apple.com/kb/TA32601
*
* --David Kilzer
*/
mac_special_bell = mac_av_start_bell;
break;
case MAC_MODEL_Q650:
case MAC_MODEL_Q700:
case MAC_MODEL_Q800:
case MAC_MODEL_Q900:
case MAC_MODEL_Q950:
/*
* Currently not implemented!
*/
mac_special_bell = NULL;
break;
default:
/*
* Every switch needs a default
*/
mac_special_bell = NULL;
break;
}
/*
* init the wave table with a simple triangular wave
* A sine wave would sure be nicer here ...
*/
for ( i = 0; i < 0x400; i++ )
{
mac_asc_wave_tab[ i ] = i / 4;
mac_asc_wave_tab[ i + 0x400 ] = 0xFF - i / 4;
}
mac_asc_inited = 1;
}
/*
* Called to make noise; current single entry to the boing driver.
* Does the job for simple ASC, calls other routines else.
* XXX Fixme:
* Should be split into asc_mksound, easc_mksound, av_mksound and
* function pointer set in mac_init_asc which would be called at
* init time.
* _This_ is rather ugly ...
*/
void mac_mksound( unsigned int freq, unsigned int length )
{
__u32 cfreq = ( freq << 5 ) / 468;
unsigned long flags;
int i;
if ( mac_special_bell == NULL )
{
/* Do nothing */
return;
}
if ( !mac_asc_inited )
mac_init_asc();
if ( mac_special_bell )
{
mac_special_bell( freq, length, 128 );
return;
}
if ( freq < 20 || freq > 20000 || length == 0 )
{
mac_nosound( 0 );
return;
}
local_irq_save(flags);
del_timer( &mac_sound_timer );
for ( i = 0; i < 0x800; i++ )
mac_asc_regs[ i ] = 0;
for ( i = 0; i < 0x800; i++ )
mac_asc_regs[ i ] = mac_asc_wave_tab[ i ];
for ( i = 0; i < 8; i++ )
*( __u32* )( ( __u32 )mac_asc_regs + ASC_CONTROL + 0x814 + 8 * i ) = cfreq;
mac_asc_regs[ 0x807 ] = 0;
mac_asc_regs[ ASC_VOLUME ] = 128;
mac_asc_regs[ 0x805 ] = 0;
mac_asc_regs[ 0x80F ] = 0;
mac_asc_regs[ ASC_MODE ] = ASC_MODE_SAMPLE;
mac_asc_regs[ ASC_ENABLE ] = ASC_ENABLE_SAMPLE;
mac_sound_timer.expires = jiffies + length;
add_timer( &mac_sound_timer );
local_irq_restore(flags);
}
/*
* regular ASC: stop whining ..
*/
static void mac_nosound(struct timer_list *unused)
{
mac_asc_regs[ ASC_ENABLE ] = 0;
}
/*
* EASC entry; init EASC, don't load wavetable, schedule 'start whining'.
*/
static void mac_quadra_start_bell( unsigned int freq, unsigned int length, unsigned int volume )
{
unsigned long flags;
/* if the bell is already ringing, ring longer */
if ( mac_bell_duration > 0 )
{
mac_bell_duration += length;
return;
}
mac_bell_duration = length;
mac_bell_phase = 0;
mac_bell_phasepersample = ( freq * sizeof( mac_asc_wave_tab ) ) / mac_asc_samplespersec;
/* this is reasonably big for small frequencies */
local_irq_save(flags);
/* set the volume */
mac_asc_regs[ 0x806 ] = volume;
/* set up the ASC registers */
if ( mac_asc_regs[ 0x801 ] != 1 )
{
/* select mono mode */
mac_asc_regs[ 0x807 ] = 0;
/* select sampled sound mode */
mac_asc_regs[ 0x802 ] = 0;
/* ??? */
mac_asc_regs[ 0x801 ] = 1;
mac_asc_regs[ 0x803 ] |= 0x80;
mac_asc_regs[ 0x803 ] &= 0x7F;
}
mac_sound_timer.function = mac_quadra_ring_bell;
mac_sound_timer.expires = jiffies + 1;
add_timer( &mac_sound_timer );
local_irq_restore(flags);
}
/*
* EASC 'start/continue whining'; I'm not sure why the above function didn't
* already load the wave table, or at least call this one...
* This piece keeps reloading the wave table until done.
*/
static void mac_quadra_ring_bell(struct timer_list *unused)
{
int i, count = mac_asc_samplespersec / HZ;
unsigned long flags;
/*
* we neither want a sound buffer overflow nor underflow, so we need to match
* the number of samples per timer interrupt as exactly as possible.
* using the asc interrupt will give better results in the future
* ...and the possibility to use a real sample (a boingy noise, maybe...)
*/
local_irq_save(flags);
del_timer( &mac_sound_timer );
if ( mac_bell_duration-- > 0 )
{
for ( i = 0; i < count; i++ )
{
mac_bell_phase += mac_bell_phasepersample;
mac_asc_regs[ 0 ] = mac_asc_wave_tab[ mac_bell_phase & ( sizeof( mac_asc_wave_tab ) - 1 ) ];
}
mac_sound_timer.expires = jiffies + 1;
add_timer( &mac_sound_timer );
}
else
mac_asc_regs[ 0x801 ] = 0;
local_irq_restore(flags);
}
/*
* AV code - please fill in.
*/
static void mac_av_start_bell( unsigned int freq, unsigned int length, unsigned int volume )
{
}