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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/m68k/atari/atasound.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/m68k/atari/atasound.c')
-rw-r--r-- | ANDROID_3.4.5/arch/m68k/atari/atasound.c | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/ANDROID_3.4.5/arch/m68k/atari/atasound.c b/ANDROID_3.4.5/arch/m68k/atari/atasound.c deleted file mode 100644 index 1c1181eb..00000000 --- a/ANDROID_3.4.5/arch/m68k/atari/atasound.c +++ /dev/null @@ -1,110 +0,0 @@ -/* - * linux/arch/m68k/atari/atasound.c - * - * ++Geert: Moved almost all stuff to linux/drivers/sound/ - * - * The author of atari_nosound, atari_mksound and atari_microwire_cmd is - * unknown. (++roman: That's me... :-) - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * - * 1998-05-31 ++andreas: atari_mksound rewritten to always use the envelope, - * no timer, atari_nosound removed. - * - */ - - -#include <linux/sched.h> -#include <linux/timer.h> -#include <linux/major.h> -#include <linux/fcntl.h> -#include <linux/errno.h> -#include <linux/mm.h> -#include <linux/module.h> - -#include <asm/atarihw.h> -#include <asm/irq.h> -#include <asm/pgtable.h> -#include <asm/atariints.h> - - -/* - * stuff from the old atasound.c - */ - -void atari_microwire_cmd (int cmd) -{ - tt_microwire.mask = 0x7ff; - tt_microwire.data = MW_LM1992_ADDR | cmd; - - /* Busy wait for data being completely sent :-( */ - while( tt_microwire.mask != 0x7ff) - ; -} -EXPORT_SYMBOL(atari_microwire_cmd); - - -/* PSG base frequency */ -#define PSG_FREQ 125000 -/* PSG envelope base frequency times 10 */ -#define PSG_ENV_FREQ_10 78125 - -void atari_mksound (unsigned int hz, unsigned int ticks) -{ - /* Generates sound of some frequency for some number of clock - ticks. */ - unsigned long flags; - unsigned char tmp; - int period; - - local_irq_save(flags); - - - /* Disable generator A in mixer control. */ - sound_ym.rd_data_reg_sel = 7; - tmp = sound_ym.rd_data_reg_sel; - tmp |= 011; - sound_ym.wd_data = tmp; - - if (hz) { - /* Convert from frequency value to PSG period value (base - frequency 125 kHz). */ - - period = PSG_FREQ / hz; - - if (period > 0xfff) period = 0xfff; - - /* Set generator A frequency to hz. */ - sound_ym.rd_data_reg_sel = 0; - sound_ym.wd_data = period & 0xff; - sound_ym.rd_data_reg_sel = 1; - sound_ym.wd_data = (period >> 8) & 0xf; - if (ticks) { - /* Set length of envelope (max 8 sec). */ - int length = (ticks * PSG_ENV_FREQ_10) / HZ / 10; - - if (length > 0xffff) length = 0xffff; - sound_ym.rd_data_reg_sel = 11; - sound_ym.wd_data = length & 0xff; - sound_ym.rd_data_reg_sel = 12; - sound_ym.wd_data = length >> 8; - /* Envelope form: max -> min single. */ - sound_ym.rd_data_reg_sel = 13; - sound_ym.wd_data = 0; - /* Use envelope for generator A. */ - sound_ym.rd_data_reg_sel = 8; - sound_ym.wd_data = 0x10; - } else { - /* Set generator A level to maximum, no envelope. */ - sound_ym.rd_data_reg_sel = 8; - sound_ym.wd_data = 15; - } - /* Turn on generator A in mixer control. */ - sound_ym.rd_data_reg_sel = 7; - tmp &= ~1; - sound_ym.wd_data = tmp; - } - local_irq_restore(flags); -} |