diff options
Diffstat (limited to 'drivers/sound/dmasound.c')
| -rw-r--r-- | drivers/sound/dmasound.c | 5821 |
1 files changed, 0 insertions, 5821 deletions
diff --git a/drivers/sound/dmasound.c b/drivers/sound/dmasound.c deleted file mode 100644 index b6298ca83..000000000 --- a/drivers/sound/dmasound.c +++ /dev/null @@ -1,5821 +0,0 @@ - -/* linux/drivers/sound/dmasound.c */ - -/* - -OSS/Free compatible Atari TT/Falcon and Amiga DMA sound driver for Linux/m68k -Extended to support Power Macintosh for Linux/ppc by Paul Mackerras - -(c) 1995 by Michael Schlueter & Michael Marte - -Michael Schlueter (michael@duck.syd.de) did the basic structure of the VFS -interface and the u-law to signed byte conversion. - -Michael Marte (marte@informatik.uni-muenchen.de) did the sound queue, -/dev/mixer, /dev/sndstat and complemented the VFS interface. He would like -to thank: -Michael Schlueter for initial ideas and documentation on the MFP and -the DMA sound hardware. -Therapy? for their CD 'Troublegum' which really made me rock. - -/dev/sndstat is based on code by Hannu Savolainen, the author of the -VoxWare family of drivers. - -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. - -History: -1995/8/25 first release - -1995/9/02 ++roman: fixed atari_stram_alloc() call, the timer programming - and several race conditions - -1995/9/14 ++roman: After some discussion with Michael Schlueter, revised - the interrupt disabling - Slightly speeded up U8->S8 translation by using long - operations where possible - Added 4:3 interpolation for /dev/audio - -1995/9/20 ++TeSche: Fixed a bug in sq_write and changed /dev/audio - converting to play at 12517Hz instead of 6258Hz. - -1995/9/23 ++TeSche: Changed sq_interrupt() and sq_play() to pre-program - the DMA for another frame while there's still one - running. This allows the IRQ response to be - arbitrarily delayed and playing will still continue. - -1995/10/14 ++Guenther_Kelleter@ac3.maus.de, ++TeSche: better support for - Falcon audio (the Falcon doesn't raise an IRQ at the - end of a frame, but at the beginning instead!). uses - 'if (codec_dma)' in lots of places to simply switch - between Falcon and TT code. - -1995/11/06 ++TeSche: started introducing a hardware abstraction scheme - (may perhaps also serve for Amigas?), can now play - samples at almost all frequencies by means of a more - generalized expand routine, takes a good deal of care - to cut data only at sample sizes, buffer size is now - a kernel runtime option, implemented fsync() & several - minor improvements - ++Guenther: useful hints and bug fixes, cross-checked it for - Falcons - -1996/3/9 ++geert: support added for Amiga, A-law, 16-bit little endian. - Unification to drivers/sound/dmasound.c. - -1996/4/6 ++Martin Mitchell: updated to 1.3 kernel. - -1996/6/13 ++topi: fixed things that were broken (mainly the amiga - 14-bit routines), /dev/sndstat shows now the real - hardware frequency, the lowpass filter is disabled - by default now. - -1996/9/25 ++geert: modularization - -1998-06-10 ++andreas: converted to use sound_core - -*/ - - -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/timer.h> -#include <linux/major.h> -#include <linux/config.h> -#include <linux/fcntl.h> -#include <linux/errno.h> -#include <linux/mm.h> -#include <linux/malloc.h> -#include <linux/sound.h> -#include <linux/init.h> -#include <linux/delay.h> - -#if defined(__mc68000__) || defined(CONFIG_APUS) -#include <asm/setup.h> -#endif -#include <asm/system.h> -#include <asm/irq.h> -#include <asm/pgtable.h> -#include <asm/uaccess.h> - -#ifdef CONFIG_ATARI -#include <asm/atarihw.h> -#include <asm/atariints.h> -#include <asm/atari_stram.h> -#endif /* CONFIG_ATARI */ -#ifdef CONFIG_AMIGA -#include <asm/amigahw.h> -#include <asm/amigaints.h> -#endif /* CONFIG_AMIGA */ -#ifdef CONFIG_PPC -#include <linux/adb.h> -#include <linux/cuda.h> -#include <linux/pmu.h> -#include <asm/prom.h> -#include <asm/machdep.h> -#include <asm/io.h> -#include <asm/dbdma.h> -#include <asm/feature.h> -#include "awacs_defs.h" -#include <linux/nvram.h> -#include <linux/vt_kern.h> -#endif /* CONFIG_PPC */ - -#include "dmasound.h" -#include <linux/soundcard.h> - -#define HAS_8BIT_TABLES - -#ifdef MODULE -static int sq_unit = -1; -static int mixer_unit = -1; -static int state_unit = -1; -static int irq_installed = 0; -#endif /* MODULE */ -static char **sound_buffers = NULL; -#ifdef CONFIG_PPC -static char **sound_read_buffers = NULL; -#endif - -#ifdef CONFIG_ATARI -extern void atari_microwire_cmd(int cmd); -#endif /* CONFIG_ATARI */ - -#ifdef CONFIG_AMIGA - /* - * The minimum period for audio depends on htotal (for OCS/ECS/AGA) - * (Imported from arch/m68k/amiga/amisound.c) - */ - -extern volatile u_short amiga_audio_min_period; - - - /* - * amiga_mksound() should be able to restore the period after beeping - * (Imported from arch/m68k/amiga/amisound.c) - */ - -extern u_short amiga_audio_period; - - - /* - * Audio DMA masks - */ - -#define AMI_AUDIO_OFF (DMAF_AUD0 | DMAF_AUD1 | DMAF_AUD2 | DMAF_AUD3) -#define AMI_AUDIO_8 (DMAF_SETCLR | DMAF_MASTER | DMAF_AUD0 | DMAF_AUD1) -#define AMI_AUDIO_14 (AMI_AUDIO_8 | DMAF_AUD2 | DMAF_AUD3) - -#endif /* CONFIG_AMIGA */ - -#ifdef CONFIG_PPC -/* - * Interrupt numbers and addresses, obtained from the device tree. - */ -static int awacs_irq, awacs_tx_irq, awacs_rx_irq; -static volatile struct awacs_regs *awacs; -static volatile struct dbdma_regs *awacs_txdma, *awacs_rxdma; -static int awacs_rate_index; -static int awacs_subframe; -static int awacs_spkr_vol; -static struct device_node* awacs_node; - -static int awacs_revision; -#define AWACS_BURGUNDY 100 /* fake revision # for burgundy */ - -/* - * Space for the DBDMA command blocks. - */ -static void *awacs_tx_cmd_space; -static volatile struct dbdma_cmd *awacs_tx_cmds; - -static void *awacs_rx_cmd_space; -static volatile struct dbdma_cmd *awacs_rx_cmds; - -/* - * Cached values of AWACS registers (we can't read them). - * Except on the burgundy. XXX - */ -int awacs_reg[5]; - -#define HAS_16BIT_TABLES -#undef HAS_8BIT_TABLES - -/* - * Stuff for outputting a beep. The values range from -327 to +327 - * so we can multiply by an amplitude in the range 0..100 to get a - * signed short value to put in the output buffer. - */ -static short beep_wform[256] = { - 0, 40, 79, 117, 153, 187, 218, 245, - 269, 288, 304, 316, 323, 327, 327, 324, - 318, 310, 299, 288, 275, 262, 249, 236, - 224, 213, 204, 196, 190, 186, 183, 182, - 182, 183, 186, 189, 192, 196, 200, 203, - 206, 208, 209, 209, 209, 207, 204, 201, - 197, 193, 188, 183, 179, 174, 170, 166, - 163, 161, 160, 159, 159, 160, 161, 162, - 164, 166, 168, 169, 171, 171, 171, 170, - 169, 167, 163, 159, 155, 150, 144, 139, - 133, 128, 122, 117, 113, 110, 107, 105, - 103, 103, 103, 103, 104, 104, 105, 105, - 105, 103, 101, 97, 92, 86, 78, 68, - 58, 45, 32, 18, 3, -11, -26, -41, - -55, -68, -79, -88, -95, -100, -102, -102, - -99, -93, -85, -75, -62, -48, -33, -16, - 0, 16, 33, 48, 62, 75, 85, 93, - 99, 102, 102, 100, 95, 88, 79, 68, - 55, 41, 26, 11, -3, -18, -32, -45, - -58, -68, -78, -86, -92, -97, -101, -103, - -105, -105, -105, -104, -104, -103, -103, -103, - -103, -105, -107, -110, -113, -117, -122, -128, - -133, -139, -144, -150, -155, -159, -163, -167, - -169, -170, -171, -171, -171, -169, -168, -166, - -164, -162, -161, -160, -159, -159, -160, -161, - -163, -166, -170, -174, -179, -183, -188, -193, - -197, -201, -204, -207, -209, -209, -209, -208, - -206, -203, -200, -196, -192, -189, -186, -183, - -182, -182, -183, -186, -190, -196, -204, -213, - -224, -236, -249, -262, -275, -288, -299, -310, - -318, -324, -327, -327, -323, -316, -304, -288, - -269, -245, -218, -187, -153, -117, -79, -40, -}; - -#define BEEP_SRATE 22050 /* 22050 Hz sample rate */ -#define BEEP_BUFLEN 512 -#define BEEP_VOLUME 15 /* 0 - 100 */ - -static int beep_volume = BEEP_VOLUME; -static int beep_playing = 0; -static int awacs_beep_state = 0; -static short *beep_buf; -static volatile struct dbdma_cmd *beep_dbdma_cmd; -static void (*orig_mksound)(unsigned int, unsigned int); -static int is_pbook_3400; -static unsigned char *latch_base; -static int is_pbook_G3; -static unsigned char *macio_base; - -/* Burgundy functions */ -static void awacs_burgundy_wcw(unsigned addr,unsigned newval); -static unsigned awacs_burgundy_rcw(unsigned addr); -static void awacs_burgundy_write_volume(unsigned address, int volume); -static int awacs_burgundy_read_volume(unsigned address); -static void awacs_burgundy_write_mvolume(unsigned address, int volume); -static int awacs_burgundy_read_mvolume(unsigned address); - -#ifdef CONFIG_PMAC_PBOOK -/* - * Stuff for restoring after a sleep. - */ -static int awacs_sleep_notify(struct pmu_sleep_notifier *self, int when); -struct pmu_sleep_notifier awacs_sleep_notifier = { - awacs_sleep_notify, SLEEP_LEVEL_SOUND, -}; -#endif /* CONFIG_PMAC_PBOOK */ - -#endif /* CONFIG_PPC */ - -/*** Some declarations *******************************************************/ - - -#define DMASND_TT 1 -#define DMASND_FALCON 2 -#define DMASND_AMIGA 3 -#define DMASND_AWACS 4 - -#define MAX_CATCH_RADIUS 10 -#define MIN_BUFFERS 4 -#define MIN_BUFSIZE 4 -#define MAX_BUFSIZE 128 /* Limit for Amiga */ - -static int catchRadius = 0; -static int numBufs = 4, bufSize = 32; -#ifdef CONFIG_PPC -static int numReadBufs = 4, readbufSize = 32; -#endif - -MODULE_PARM(catchRadius, "i"); -MODULE_PARM(numBufs, "i"); -MODULE_PARM(bufSize, "i"); -MODULE_PARM(numReadBufs, "i"); -MODULE_PARM(readbufSize, "i"); - -#define arraysize(x) (sizeof(x)/sizeof(*(x))) -#define min(x, y) ((x) < (y) ? (x) : (y)) -#define le2be16(x) (((x)<<8 & 0xff00) | ((x)>>8 & 0x00ff)) -#define le2be16dbl(x) (((x)<<8 & 0xff00ff00) | ((x)>>8 & 0x00ff00ff)) - -#define IOCTL_IN(arg, ret) \ - do { int error = get_user(ret, (int *)(arg)); \ - if (error) return error; \ - } while (0) -#define IOCTL_OUT(arg, ret) ioctl_return((int *)(arg), ret) - - -/*** Some low level helpers **************************************************/ - -#ifdef HAS_8BIT_TABLES -/* 8 bit mu-law */ - -static char ulaw2dma8[] = { - -126, -122, -118, -114, -110, -106, -102, -98, - -94, -90, -86, -82, -78, -74, -70, -66, - -63, -61, -59, -57, -55, -53, -51, -49, - -47, -45, -43, -41, -39, -37, -35, -33, - -31, -30, -29, -28, -27, -26, -25, -24, - -23, -22, -21, -20, -19, -18, -17, -16, - -16, -15, -15, -14, -14, -13, -13, -12, - -12, -11, -11, -10, -10, -9, -9, -8, - -8, -8, -7, -7, -7, -7, -6, -6, - -6, -6, -5, -5, -5, -5, -4, -4, - -4, -4, -4, -4, -3, -3, -3, -3, - -3, -3, -3, -3, -2, -2, -2, -2, - -2, -2, -2, -2, -2, -2, -2, -2, - -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, 0, - 125, 121, 117, 113, 109, 105, 101, 97, - 93, 89, 85, 81, 77, 73, 69, 65, - 62, 60, 58, 56, 54, 52, 50, 48, - 46, 44, 42, 40, 38, 36, 34, 32, - 30, 29, 28, 27, 26, 25, 24, 23, - 22, 21, 20, 19, 18, 17, 16, 15, - 15, 14, 14, 13, 13, 12, 12, 11, - 11, 10, 10, 9, 9, 8, 8, 7, - 7, 7, 6, 6, 6, 6, 5, 5, - 5, 5, 4, 4, 4, 4, 3, 3, - 3, 3, 3, 3, 2, 2, 2, 2, - 2, 2, 2, 2, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0 -}; - -/* 8 bit A-law */ - -static char alaw2dma8[] = { - -22, -21, -24, -23, -18, -17, -20, -19, - -30, -29, -32, -31, -26, -25, -28, -27, - -11, -11, -12, -12, -9, -9, -10, -10, - -15, -15, -16, -16, -13, -13, -14, -14, - -86, -82, -94, -90, -70, -66, -78, -74, - -118, -114, -126, -122, -102, -98, -110, -106, - -43, -41, -47, -45, -35, -33, -39, -37, - -59, -57, -63, -61, -51, -49, -55, -53, - -2, -2, -2, -2, -2, -2, -2, -2, - -2, -2, -2, -2, -2, -2, -2, -2, - -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, - -6, -6, -6, -6, -5, -5, -5, -5, - -8, -8, -8, -8, -7, -7, -7, -7, - -3, -3, -3, -3, -3, -3, -3, -3, - -4, -4, -4, -4, -4, -4, -4, -4, - 21, 20, 23, 22, 17, 16, 19, 18, - 29, 28, 31, 30, 25, 24, 27, 26, - 10, 10, 11, 11, 8, 8, 9, 9, - 14, 14, 15, 15, 12, 12, 13, 13, - 86, 82, 94, 90, 70, 66, 78, 74, - 118, 114, 126, 122, 102, 98, 110, 106, - 43, 41, 47, 45, 35, 33, 39, 37, - 59, 57, 63, 61, 51, 49, 55, 53, - 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 5, 5, 5, 5, 4, 4, 4, 4, - 7, 7, 7, 7, 6, 6, 6, 6, - 2, 2, 2, 2, 2, 2, 2, 2, - 3, 3, 3, 3, 3, 3, 3, 3 -}; -#endif /* HAS_8BIT_TABLES */ - -#ifdef HAS_16BIT_TABLES - -/* 16 bit mu-law */ - -static short ulaw2dma16[] = { - -32124, -31100, -30076, -29052, -28028, -27004, -25980, -24956, - -23932, -22908, -21884, -20860, -19836, -18812, -17788, -16764, - -15996, -15484, -14972, -14460, -13948, -13436, -12924, -12412, - -11900, -11388, -10876, -10364, -9852, -9340, -8828, -8316, - -7932, -7676, -7420, -7164, -6908, -6652, -6396, -6140, - -5884, -5628, -5372, -5116, -4860, -4604, -4348, -4092, - -3900, -3772, -3644, -3516, -3388, -3260, -3132, -3004, - -2876, -2748, -2620, -2492, -2364, -2236, -2108, -1980, - -1884, -1820, -1756, -1692, -1628, -1564, -1500, -1436, - -1372, -1308, -1244, -1180, -1116, -1052, -988, -924, - -876, -844, -812, -780, -748, -716, -684, -652, - -620, -588, -556, -524, -492, -460, -428, -396, - -372, -356, -340, -324, -308, -292, -276, -260, - -244, -228, -212, -196, -180, -164, -148, -132, - -120, -112, -104, -96, -88, -80, -72, -64, - -56, -48, -40, -32, -24, -16, -8, 0, - 32124, 31100, 30076, 29052, 28028, 27004, 25980, 24956, - 23932, 22908, 21884, 20860, 19836, 18812, 17788, 16764, - 15996, 15484, 14972, 14460, 13948, 13436, 12924, 12412, - 11900, 11388, 10876, 10364, 9852, 9340, 8828, 8316, - 7932, 7676, 7420, 7164, 6908, 6652, 6396, 6140, - 5884, 5628, 5372, 5116, 4860, 4604, 4348, 4092, - 3900, 3772, 3644, 3516, 3388, 3260, 3132, 3004, - 2876, 2748, 2620, 2492, 2364, 2236, 2108, 1980, - 1884, 1820, 1756, 1692, 1628, 1564, 1500, 1436, - 1372, 1308, 1244, 1180, 1116, 1052, 988, 924, - 876, 844, 812, 780, 748, 716, 684, 652, - 620, 588, 556, 524, 492, 460, 428, 396, - 372, 356, 340, 324, 308, 292, 276, 260, - 244, 228, 212, 196, 180, 164, 148, 132, - 120, 112, 104, 96, 88, 80, 72, 64, - 56, 48, 40, 32, 24, 16, 8, 0, -}; - -/* 16 bit A-law */ - -static short alaw2dma16[] = { - -5504, -5248, -6016, -5760, -4480, -4224, -4992, -4736, - -7552, -7296, -8064, -7808, -6528, -6272, -7040, -6784, - -2752, -2624, -3008, -2880, -2240, -2112, -2496, -2368, - -3776, -3648, -4032, -3904, -3264, -3136, -3520, -3392, - -22016, -20992, -24064, -23040, -17920, -16896, -19968, -18944, - -30208, -29184, -32256, -31232, -26112, -25088, -28160, -27136, - -11008, -10496, -12032, -11520, -8960, -8448, -9984, -9472, - -15104, -14592, -16128, -15616, -13056, -12544, -14080, -13568, - -344, -328, -376, -360, -280, -264, -312, -296, - -472, -456, -504, -488, -408, -392, -440, -424, - -88, -72, -120, -104, -24, -8, -56, -40, - -216, -200, -248, -232, -152, -136, -184, -168, - -1376, -1312, -1504, -1440, -1120, -1056, -1248, -1184, - -1888, -1824, -2016, -1952, -1632, -1568, -1760, -1696, - -688, -656, -752, -720, -560, -528, -624, -592, - -944, -912, -1008, -976, -816, -784, -880, -848, - 5504, 5248, 6016, 5760, 4480, 4224, 4992, 4736, - 7552, 7296, 8064, 7808, 6528, 6272, 7040, 6784, - 2752, 2624, 3008, 2880, 2240, 2112, 2496, 2368, - 3776, 3648, 4032, 3904, 3264, 3136, 3520, 3392, - 22016, 20992, 24064, 23040, 17920, 16896, 19968, 18944, - 30208, 29184, 32256, 31232, 26112, 25088, 28160, 27136, - 11008, 10496, 12032, 11520, 8960, 8448, 9984, 9472, - 15104, 14592, 16128, 15616, 13056, 12544, 14080, 13568, - 344, 328, 376, 360, 280, 264, 312, 296, - 472, 456, 504, 488, 408, 392, 440, 424, - 88, 72, 120, 104, 24, 8, 56, 40, - 216, 200, 248, 232, 152, 136, 184, 168, - 1376, 1312, 1504, 1440, 1120, 1056, 1248, 1184, - 1888, 1824, 2016, 1952, 1632, 1568, 1760, 1696, - 688, 656, 752, 720, 560, 528, 624, 592, - 944, 912, 1008, 976, 816, 784, 880, 848, -}; -#endif /* HAS_16BIT_TABLES */ - - -#ifdef HAS_14BIT_TABLES - -/* 14 bit mu-law (LSB) */ - -static char alaw2dma14l[] = { - 33, 33, 33, 33, 33, 33, 33, 33, - 33, 33, 33, 33, 33, 33, 33, 33, - 33, 33, 33, 33, 33, 33, 33, 33, - 33, 33, 33, 33, 33, 33, 33, 33, - 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, - 49, 17, 49, 17, 49, 17, 49, 17, - 49, 17, 49, 17, 49, 17, 49, 17, - 41, 57, 9, 25, 41, 57, 9, 25, - 41, 57, 9, 25, 41, 57, 9, 25, - 37, 45, 53, 61, 5, 13, 21, 29, - 37, 45, 53, 61, 5, 13, 21, 29, - 35, 39, 43, 47, 51, 55, 59, 63, - 3, 7, 11, 15, 19, 23, 27, 31, - 34, 36, 38, 40, 42, 44, 46, 48, - 50, 52, 54, 56, 58, 60, 62, 0, - 31, 31, 31, 31, 31, 31, 31, 31, - 31, 31, 31, 31, 31, 31, 31, 31, - 31, 31, 31, 31, 31, 31, 31, 31, - 31, 31, 31, 31, 31, 31, 31, 31, - 63, 63, 63, 63, 63, 63, 63, 63, - 63, 63, 63, 63, 63, 63, 63, 63, - 15, 47, 15, 47, 15, 47, 15, 47, - 15, 47, 15, 47, 15, 47, 15, 47, - 23, 7, 55, 39, 23, 7, 55, 39, - 23, 7, 55, 39, 23, 7, 55, 39, - 27, 19, 11, 3, 59, 51, 43, 35, - 27, 19, 11, 3, 59, 51, 43, 35, - 29, 25, 21, 17, 13, 9, 5, 1, - 61, 57, 53, 49, 45, 41, 37, 33, - 30, 28, 26, 24, 22, 20, 18, 16, - 14, 12, 10, 8, 6, 4, 2, 0 -}; - -/* 14 bit A-law (LSB) */ - -static char alaw2dma14l[] = { - 32, 32, 32, 32, 32, 32, 32, 32, - 32, 32, 32, 32, 32, 32, 32, 32, - 16, 48, 16, 48, 16, 48, 16, 48, - 16, 48, 16, 48, 16, 48, 16, 48, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 42, 46, 34, 38, 58, 62, 50, 54, - 10, 14, 2, 6, 26, 30, 18, 22, - 42, 46, 34, 38, 58, 62, 50, 54, - 10, 14, 2, 6, 26, 30, 18, 22, - 40, 56, 8, 24, 40, 56, 8, 24, - 40, 56, 8, 24, 40, 56, 8, 24, - 20, 28, 4, 12, 52, 60, 36, 44, - 20, 28, 4, 12, 52, 60, 36, 44, - 32, 32, 32, 32, 32, 32, 32, 32, - 32, 32, 32, 32, 32, 32, 32, 32, - 48, 16, 48, 16, 48, 16, 48, 16, - 48, 16, 48, 16, 48, 16, 48, 16, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, - 22, 18, 30, 26, 6, 2, 14, 10, - 54, 50, 62, 58, 38, 34, 46, 42, - 22, 18, 30, 26, 6, 2, 14, 10, - 54, 50, 62, 58, 38, 34, 46, 42, - 24, 8, 56, 40, 24, 8, 56, 40, - 24, 8, 56, 40, 24, 8, 56, 40, - 44, 36, 60, 52, 12, 4, 28, 20, - 44, 36, 60, 52, 12, 4, 28, 20 -}; -#endif /* HAS_14BIT_TABLES */ - - -/*** Translations ************************************************************/ - - -#ifdef CONFIG_ATARI -static ssize_t ata_ct_law(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ata_ct_s8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ata_ct_u8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ata_ct_s16be(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ata_ct_u16be(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ata_ct_s16le(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ata_ct_u16le(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ata_ctx_law(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ata_ctx_s8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ata_ctx_u8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ata_ctx_s16be(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ata_ctx_u16be(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ata_ctx_s16le(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ata_ctx_u16le(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -#endif /* CONFIG_ATARI */ - -#ifdef CONFIG_AMIGA -static ssize_t ami_ct_law(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ami_ct_s8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ami_ct_u8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ami_ct_s16be(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ami_ct_u16be(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ami_ct_s16le(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t ami_ct_u16le(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -#endif /* CONFIG_AMIGA */ - -#ifdef CONFIG_PPC -static ssize_t pmac_ct_law(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t pmac_ct_s8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t pmac_ct_u8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t pmac_ct_s16(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t pmac_ct_u16(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t pmac_ctx_law(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t pmac_ctx_s8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t pmac_ctx_u8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t pmac_ctx_s16(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t pmac_ctx_u16(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t pmac_ct_s16_read(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -static ssize_t pmac_ct_u16_read(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -#endif /* CONFIG_PPC */ - -/*** Machine definitions *****************************************************/ - - -typedef struct { - int type; - void *(*dma_alloc)(unsigned int, int); - void (*dma_free)(void *, unsigned int); - int (*irqinit)(void); -#ifdef MODULE - void (*irqcleanup)(void); -#endif /* MODULE */ - void (*init)(void); - void (*silence)(void); - int (*setFormat)(int); - int (*setVolume)(int); - int (*setBass)(int); - int (*setTreble)(int); - int (*setGain)(int); - void (*play)(void); -} MACHINE; - - -/*** Low level stuff *********************************************************/ - - -typedef struct { - int format; /* AFMT_* */ - int stereo; /* 0 = mono, 1 = stereo */ - int size; /* 8/16 bit*/ - int speed; /* speed */ -} SETTINGS; - -typedef struct { - ssize_t (*ct_ulaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); - ssize_t (*ct_alaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); - ssize_t (*ct_s8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); - ssize_t (*ct_u8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); - ssize_t (*ct_s16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); - ssize_t (*ct_u16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); - ssize_t (*ct_s16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); - ssize_t (*ct_u16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t); -} TRANS; - -struct sound_settings { - MACHINE mach; /* machine dependent things */ - SETTINGS hard; /* hardware settings */ - SETTINGS soft; /* software settings */ - SETTINGS dsp; /* /dev/dsp default settings */ - TRANS *trans; /* supported translations */ -#if defined(CONFIG_PPC) - TRANS *read_trans; /* supported translations */ -#endif - int volume_left; /* volume (range is machine dependent) */ - int volume_right; - int bass; /* tone (range is machine dependent) */ - int treble; - int gain; - int minDev; /* minor device number currently open */ -#if defined(CONFIG_ATARI) || defined(CONFIG_PPC) - int bal; /* balance factor for expanding (not volume!) */ - u_long data; /* data for expanding */ -#endif /* CONFIG_ATARI */ -}; - -static struct sound_settings sound; - - -#ifdef CONFIG_ATARI -static void *AtaAlloc(unsigned int size, int flags); -static void AtaFree(void *, unsigned int size); -static int AtaIrqInit(void); -#ifdef MODULE -static void AtaIrqCleanUp(void); -#endif /* MODULE */ -static int AtaSetBass(int bass); -static int AtaSetTreble(int treble); -static void TTSilence(void); -static void TTInit(void); -static int TTSetFormat(int format); -static int TTSetVolume(int volume); -static int TTSetGain(int gain); -static void FalconSilence(void); -static void FalconInit(void); -static int FalconSetFormat(int format); -static int FalconSetVolume(int volume); -static void ata_sq_play_next_frame(int index); -static void AtaPlay(void); -static void ata_sq_interrupt(int irq, void *dummy, struct pt_regs *fp); -#endif /* CONFIG_ATARI */ - -#ifdef CONFIG_AMIGA -static void *AmiAlloc(unsigned int size, int flags); -static void AmiFree(void *, unsigned int); -static int AmiIrqInit(void); -#ifdef MODULE -static void AmiIrqCleanUp(void); -#endif /* MODULE */ -static void AmiSilence(void); -static void AmiInit(void); -static int AmiSetFormat(int format); -static int AmiSetVolume(int volume); -static int AmiSetTreble(int treble); -static void ami_sq_play_next_frame(int index); -static void AmiPlay(void); -static void ami_sq_interrupt(int irq, void *dummy, struct pt_regs *fp); -#endif /* CONFIG_AMIGA */ - -#ifdef CONFIG_PPC -static void *PMacAlloc(unsigned int size, int flags); -static void PMacFree(void *ptr, unsigned int size); -static int PMacIrqInit(void); -#ifdef MODULE -static void PMacIrqCleanup(void); -#endif /* MODULE */ -static void PMacSilence(void); -static void PMacInit(void); -static void PMacPlay(void); -static void PMacRecord(void); -static int PMacSetFormat(int format); -static int PMacSetVolume(int volume); -static void pmac_awacs_tx_intr(int irq, void *devid, struct pt_regs *regs); -static void pmac_awacs_rx_intr(int irq, void *devid, struct pt_regs *regs); -static void pmac_awacs_intr(int irq, void *devid, struct pt_regs *regs); -static void awacs_write(int val); -static int awacs_get_volume(int reg, int lshift); -static int awacs_volume_setter(int volume, int n, int mute, int lshift); -static void awacs_mksound(unsigned int hz, unsigned int ticks); -static void awacs_nosound(unsigned long xx); -#endif /* CONFIG_PPC */ - -/*** Mid level stuff *********************************************************/ - - -static void sound_silence(void); -static void sound_init(void); -static int sound_set_format(int format); -static int sound_set_speed(int speed); -static int sound_set_stereo(int stereo); -static int sound_set_volume(int volume); -#ifdef CONFIG_ATARI -static int sound_set_bass(int bass); -#endif /* CONFIG_ATARI */ -#if defined(CONFIG_ATARI) || defined(CONFIG_AMIGA) -static int sound_set_treble(int treble); -#endif /* CONFIG_ATARI || CONFIG_AMIGA */ -static ssize_t sound_copy_translate(const u_char *userPtr, - size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -#ifdef CONFIG_PPC -static ssize_t sound_copy_translate_read(const u_char *userPtr, - size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft); -#endif - - -/* - * /dev/mixer abstraction - */ - -struct sound_mixer { - int busy; - int modify_counter; -}; - -static struct sound_mixer mixer; - -/* - * Sound queue stuff, the heart of the driver - */ - -struct sound_queue { - int max_count, block_size; - char **buffers; - int max_active; - - /* it shouldn't be necessary to declare any of these volatile */ - int front, rear, count; - int rear_size; - /* - * The use of the playing field depends on the hardware - * - * Atari, PMac: The number of frames that are loaded/playing - * - * Amiga: Bit 0 is set: a frame is loaded - * Bit 1 is set: a frame is playing - */ - int active; - wait_queue_head_t action_queue, open_queue, sync_queue; - int open_mode; - int busy, syncing; -#ifdef CONFIG_ATARI - int ignore_int; /* ++TeSche: used for Falcon */ -#endif /* CONFIG_ATARI */ -#ifdef CONFIG_AMIGA - int block_size_half, block_size_quarter; -#endif /* CONFIG_AMIGA */ -}; - -static struct sound_queue sq; -#ifdef CONFIG_PPC -static struct sound_queue read_sq; -#endif - -#define sq_block_address(i) (sq.buffers[i]) -#define SIGNAL_RECEIVED (signal_pending(current)) -#define NON_BLOCKING(open_mode) (open_mode & O_NONBLOCK) -#define ONE_SECOND HZ /* in jiffies (100ths of a second) */ -#define NO_TIME_LIMIT 0xffffffff -#define SLEEP(queue, time_limit) \ - interruptible_sleep_on_timeout(&queue, (time_limit)); -#define WAKE_UP(queue) (wake_up_interruptible(&queue)) - -/* - * /dev/sndstat - */ - -struct sound_state { - int busy; - char buf[512]; - int len, ptr; -}; - -static struct sound_state state; - -/*** Common stuff ********************************************************/ - -static long long sound_lseek(struct file *file, long long offset, int orig); -static inline int ioctl_return(int *addr, int value) -{ - if (value < 0) - return(value); - - return put_user(value, addr); -} - - -/*** Config & Setup **********************************************************/ - - -void dmasound_init(void); -static int dmasound_setup(char *str); - - -/*** Translations ************************************************************/ - - -/* ++TeSche: radically changed for new expanding purposes... - * - * These two routines now deal with copying/expanding/translating the samples - * from user space into our buffer at the right frequency. They take care about - * how much data there's actually to read, how much buffer space there is and - * to convert samples into the right frequency/encoding. They will only work on - * complete samples so it may happen they leave some bytes in the input stream - * if the user didn't write a multiple of the current sample size. They both - * return the number of bytes they've used from both streams so you may detect - * such a situation. Luckily all programs should be able to cope with that. - * - * I think I've optimized anything as far as one can do in plain C, all - * variables should fit in registers and the loops are really short. There's - * one loop for every possible situation. Writing a more generalized and thus - * parameterized loop would only produce slower code. Feel free to optimize - * this in assembler if you like. :) - * - * I think these routines belong here because they're not yet really hardware - * independent, especially the fact that the Falcon can play 16bit samples - * only in stereo is hardcoded in both of them! - * - * ++geert: split in even more functions (one per format) - */ - -#ifdef CONFIG_ATARI -static ssize_t ata_ct_law(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - char *table = sound.soft.format == AFMT_MU_LAW ? ulaw2dma8 : alaw2dma8; - ssize_t count, used; - u_char *p = &frame[*frameUsed]; - - count = min(userCount, frameLeft); - if (sound.soft.stereo) - count &= ~1; - used = count; - while (count > 0) { - u_char data; - if (get_user(data, userPtr++)) - return -EFAULT; - *p++ = table[data]; - count--; - } - *frameUsed += used; - return used; -} - - -static ssize_t ata_ct_s8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - void *p = &frame[*frameUsed]; - - count = min(userCount, frameLeft); - if (sound.soft.stereo) - count &= ~1; - used = count; - if (copy_from_user(p, userPtr, count)) - return -EFAULT; - *frameUsed += used; - return(used); -} - - -static ssize_t ata_ct_u8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - - if (!sound.soft.stereo) { - u_char *p = &frame[*frameUsed]; - count = min(userCount, frameLeft); - used = count; - while (count > 0) { - u_char data; - if (get_user(data, userPtr++)) - return -EFAULT; - *p++ = data ^ 0x80; - count--; - } - } else { - u_short *p = (u_short *)&frame[*frameUsed]; - count = min(userCount, frameLeft)>>1; - used = count*2; - while (count > 0) { - u_short data; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - *p++ = data ^ 0x8080; - count--; - } - } - *frameUsed += used; - return(used); -} - - -static ssize_t ata_ct_s16be(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - - if (!sound.soft.stereo) { - u_short *p = (u_short *)&frame[*frameUsed]; - count = min(userCount, frameLeft)>>1; - used = count*2; - while (count > 0) { - u_short data; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - *p++ = data; - *p++ = data; - count--; - } - *frameUsed += used*2; - } else { - void *p = (u_short *)&frame[*frameUsed]; - count = min(userCount, frameLeft) & ~3; - used = count; - if (copy_from_user(p, userPtr, count)) - return -EFAULT; - *frameUsed += used; - } - return(used); -} - - -static ssize_t ata_ct_u16be(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - - if (!sound.soft.stereo) { - u_short *p = (u_short *)&frame[*frameUsed]; - count = min(userCount, frameLeft)>>1; - used = count*2; - while (count > 0) { - u_short data; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data ^= 0x8000; - *p++ = data; - *p++ = data; - count--; - } - *frameUsed += used*2; - } else { - u_long *p = (u_long *)&frame[*frameUsed]; - count = min(userCount, frameLeft)>>2; - used = count*4; - while (count > 0) { - u_long data; - if (get_user(data, ((u_int *)userPtr)++)) - return -EFAULT; - *p++ = data ^ 0x80008000; - count--; - } - *frameUsed += used; - } - return(used); -} - - -static ssize_t ata_ct_s16le(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - - count = frameLeft; - if (!sound.soft.stereo) { - u_short *p = (u_short *)&frame[*frameUsed]; - count = min(userCount, frameLeft)>>1; - used = count*2; - while (count > 0) { - u_short data; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data = le2be16(data); - *p++ = data; - *p++ = data; - count--; - } - *frameUsed += used*2; - } else { - u_long *p = (u_long *)&frame[*frameUsed]; - count = min(userCount, frameLeft)>>2; - used = count*4; - while (count > 0) { - u_long data; - if (get_user(data, ((u_int *)userPtr)++)) - return -EFAULT; - data = le2be16dbl(data); - *p++ = data; - count--; - } - *frameUsed += used; - } - return(used); -} - - -static ssize_t ata_ct_u16le(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - - count = frameLeft; - if (!sound.soft.stereo) { - u_short *p = (u_short *)&frame[*frameUsed]; - count = min(userCount, frameLeft)>>1; - used = count*2; - while (count > 0) { - u_short data; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data = le2be16(data) ^ 0x8000; - *p++ = data; - *p++ = data; - } - *frameUsed += used*2; - } else { - u_long *p = (u_long *)&frame[*frameUsed]; - count = min(userCount, frameLeft)>>2; - used = count; - while (count > 0) { - u_long data; - if (get_user(data, ((u_int *)userPtr)++)) - return -EFAULT; - data = le2be16dbl(data) ^ 0x80008000; - *p++ = data; - count--; - } - *frameUsed += used; - } - return(used); -} - - -static ssize_t ata_ctx_law(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - char *table = sound.soft.format == AFMT_MU_LAW ? ulaw2dma8 : alaw2dma8; - /* this should help gcc to stuff everything into registers */ - long bal = sound.bal; - long hSpeed = sound.hard.speed, sSpeed = sound.soft.speed; - ssize_t used, usedf; - - used = userCount; - usedf = frameLeft; - if (!sound.soft.stereo) { - u_char *p = &frame[*frameUsed]; - u_char data = sound.data; - while (frameLeft) { - u_char c; - if (bal < 0) { - if (!userCount) - break; - if (get_user(c, userPtr++)) - return -EFAULT; - data = table[c]; - userCount--; - bal += hSpeed; - } - *p++ = data; - frameLeft--; - bal -= sSpeed; - } - sound.data = data; - } else { - u_short *p = (u_short *)&frame[*frameUsed]; - u_short data = sound.data; - while (frameLeft >= 2) { - u_char c; - if (bal < 0) { - if (userCount < 2) - break; - if (get_user(c, userPtr++)) - return -EFAULT; - data = table[c] << 8; - if (get_user(c, userPtr++)) - return -EFAULT; - data |= table[c]; - userCount -= 2; - bal += hSpeed; - } - *p++ = data; - frameLeft -= 2; - bal -= sSpeed; - } - sound.data = data; - } - sound.bal = bal; - used -= userCount; - *frameUsed += usedf-frameLeft; - return(used); -} - - -static ssize_t ata_ctx_s8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - /* this should help gcc to stuff everything into registers */ - long bal = sound.bal; - long hSpeed = sound.hard.speed, sSpeed = sound.soft.speed; - ssize_t used, usedf; - - used = userCount; - usedf = frameLeft; - if (!sound.soft.stereo) { - u_char *p = &frame[*frameUsed]; - u_char data = sound.data; - while (frameLeft) { - if (bal < 0) { - if (!userCount) - break; - if (get_user(data, userPtr++)) - return -EFAULT; - userCount--; - bal += hSpeed; - } - *p++ = data; - frameLeft--; - bal -= sSpeed; - } - sound.data = data; - } else { - u_short *p = (u_short *)&frame[*frameUsed]; - u_short data = sound.data; - while (frameLeft >= 2) { - if (bal < 0) { - if (userCount < 2) - break; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - userCount -= 2; - bal += hSpeed; - } - *p++ = data; - frameLeft -= 2; - bal -= sSpeed; - } - sound.data = data; - } - sound.bal = bal; - used -= userCount; - *frameUsed += usedf-frameLeft; - return(used); -} - - -static ssize_t ata_ctx_u8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - /* this should help gcc to stuff everything into registers */ - long bal = sound.bal; - long hSpeed = sound.hard.speed, sSpeed = sound.soft.speed; - ssize_t used, usedf; - - used = userCount; - usedf = frameLeft; - if (!sound.soft.stereo) { - u_char *p = &frame[*frameUsed]; - u_char data = sound.data; - while (frameLeft) { - if (bal < 0) { - if (!userCount) - break; - if (get_user(data, userPtr++)) - return -EFAULT; - data ^= 0x80; - userCount--; - bal += hSpeed; - } - *p++ = data; - frameLeft--; - bal -= sSpeed; - } - sound.data = data; - } else { - u_short *p = (u_short *)&frame[*frameUsed]; - u_short data = sound.data; - while (frameLeft >= 2) { - if (bal < 0) { - if (userCount < 2) - break; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data ^= 0x8080; - userCount -= 2; - bal += hSpeed; - } - *p++ = data; - frameLeft -= 2; - bal -= sSpeed; - } - sound.data = data; - } - sound.bal = bal; - used -= userCount; - *frameUsed += usedf-frameLeft; - return(used); -} - - -static ssize_t ata_ctx_s16be(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - /* this should help gcc to stuff everything into registers */ - long bal = sound.bal; - long hSpeed = sound.hard.speed, sSpeed = sound.soft.speed; - ssize_t used, usedf; - - used = userCount; - usedf = frameLeft; - if (!sound.soft.stereo) { - u_short *p = (u_short *)&frame[*frameUsed]; - u_short data = sound.data; - while (frameLeft >= 4) { - if (bal < 0) { - if (userCount < 2) - break; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - userCount -= 2; - bal += hSpeed; - } - *p++ = data; - *p++ = data; - frameLeft -= 4; - bal -= sSpeed; - } - sound.data = data; - } else { - u_long *p = (u_long *)&frame[*frameUsed]; - u_long data = sound.data; - while (frameLeft >= 4) { - if (bal < 0) { - if (userCount < 4) - break; - if (get_user(data, ((u_int *)userPtr)++)) - return -EFAULT; - userCount -= 4; - bal += hSpeed; - } - *p++ = data; - frameLeft -= 4; - bal -= sSpeed; - } - sound.data = data; - } - sound.bal = bal; - used -= userCount; - *frameUsed += usedf-frameLeft; - return(used); -} - - -static ssize_t ata_ctx_u16be(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - /* this should help gcc to stuff everything into registers */ - long bal = sound.bal; - long hSpeed = sound.hard.speed, sSpeed = sound.soft.speed; - ssize_t used, usedf; - - used = userCount; - usedf = frameLeft; - if (!sound.soft.stereo) { - u_short *p = (u_short *)&frame[*frameUsed]; - u_short data = sound.data; - while (frameLeft >= 4) { - if (bal < 0) { - if (userCount < 2) - break; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data ^= 0x8000; - userCount -= 2; - bal += hSpeed; - } - *p++ = data; - *p++ = data; - frameLeft -= 4; - bal -= sSpeed; - } - sound.data = data; - } else { - u_long *p = (u_long *)&frame[*frameUsed]; - u_long data = sound.data; - while (frameLeft >= 4) { - if (bal < 0) { - if (userCount < 4) - break; - if (get_user(data, ((u_int *)userPtr)++)) - return -EFAULT; - data ^= 0x80008000; - userCount -= 4; - bal += hSpeed; - } - *p++ = data; - frameLeft -= 4; - bal -= sSpeed; - } - sound.data = data; - } - sound.bal = bal; - used -= userCount; - *frameUsed += usedf-frameLeft; - return(used); -} - - -static ssize_t ata_ctx_s16le(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - /* this should help gcc to stuff everything into registers */ - long bal = sound.bal; - long hSpeed = sound.hard.speed, sSpeed = sound.soft.speed; - ssize_t used, usedf; - - used = userCount; - usedf = frameLeft; - if (!sound.soft.stereo) { - u_short *p = (u_short *)&frame[*frameUsed]; - u_short data = sound.data; - while (frameLeft >= 4) { - if (bal < 0) { - if (userCount < 2) - break; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data = le2be16(data); - userCount -= 2; - bal += hSpeed; - } - *p++ = data; - *p++ = data; - frameLeft -= 4; - bal -= sSpeed; - } - sound.data = data; - } else { - u_long *p = (u_long *)&frame[*frameUsed]; - u_long data = sound.data; - while (frameLeft >= 4) { - if (bal < 0) { - if (userCount < 4) - break; - if (get_user(data, ((u_int *)userPtr)++)) - return -EFAULT; - data = le2be16dbl(data); - userCount -= 4; - bal += hSpeed; - } - *p++ = data; - frameLeft -= 4; - bal -= sSpeed; - } - sound.data = data; - } - sound.bal = bal; - used -= userCount; - *frameUsed += usedf-frameLeft; - return(used); -} - - -static ssize_t ata_ctx_u16le(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - /* this should help gcc to stuff everything into registers */ - long bal = sound.bal; - long hSpeed = sound.hard.speed, sSpeed = sound.soft.speed; - ssize_t used, usedf; - - used = userCount; - usedf = frameLeft; - if (!sound.soft.stereo) { - u_short *p = (u_short *)&frame[*frameUsed]; - u_short data = sound.data; - while (frameLeft >= 4) { - if (bal < 0) { - if (userCount < 2) - break; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data = le2be16(data) ^ 0x8000; - userCount -= 2; - bal += hSpeed; - } - *p++ = data; - *p++ = data; - frameLeft -= 4; - bal -= sSpeed; - } - sound.data = data; - } else { - u_long *p = (u_long *)&frame[*frameUsed]; - u_long data = sound.data; - while (frameLeft >= 4) { - if (bal < 0) { - if (userCount < 4) - break; - if (get_user(data, ((u_int *)userPtr)++)) - return -EFAULT; - data = le2be16dbl(data) ^ 0x80008000; - userCount -= 4; - bal += hSpeed; - } - *p++ = data; - frameLeft -= 4; - bal -= sSpeed; - } - sound.data = data; - } - sound.bal = bal; - used -= userCount; - *frameUsed += usedf-frameLeft; - return(used); -} -#endif /* CONFIG_ATARI */ - - -#ifdef CONFIG_AMIGA -static ssize_t ami_ct_law(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - char *table = sound.soft.format == AFMT_MU_LAW ? ulaw2dma8 : alaw2dma8; - ssize_t count, used; - - if (!sound.soft.stereo) { - u_char *p = &frame[*frameUsed]; - count = min(userCount, frameLeft) & ~1; - used = count; - while (count > 0) { - u_char data; - if (get_user(data, userPtr++)) - return -EFAULT; - *p++ = table[data]; - count--; - } - } else { - u_char *left = &frame[*frameUsed>>1]; - u_char *right = left+sq.block_size_half; - count = min(userCount, frameLeft)>>1 & ~1; - used = count*2; - while (count > 0) { - u_char data; - if (get_user(data, userPtr++)) - return -EFAULT; - *left++ = table[data]; - if (get_user(data, userPtr++)) - return -EFAULT; - *right++ = table[data]; - count--; - } - } - *frameUsed += used; - return(used); -} - - -static ssize_t ami_ct_s8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, ssize_t frameLeft) -{ - ssize_t count, used; - - if (!sound.soft.stereo) { - void *p = &frame[*frameUsed]; - count = min(userCount, frameLeft) & ~1; - used = count; - if (copy_from_user(p, userPtr, count)) - return -EFAULT; - } else { - u_char *left = &frame[*frameUsed>>1]; - u_char *right = left+sq.block_size_half; - count = min(userCount, frameLeft)>>1 & ~1; - used = count*2; - while (count > 0) { - if (get_user(*left++, userPtr++) - || get_user(*right++, userPtr++)) - return -EFAULT; - count--; - } - } - *frameUsed += used; - return(used); -} - - -static ssize_t ami_ct_u8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, ssize_t frameLeft) -{ - ssize_t count, used; - - if (!sound.soft.stereo) { - char *p = &frame[*frameUsed]; - count = min(userCount, frameLeft) & ~1; - used = count; - while (count > 0) { - u_char data; - if (get_user(data, userPtr++)) - return -EFAULT; - *p++ = data ^ 0x80; - count--; - } - } else { - u_char *left = &frame[*frameUsed>>1]; - u_char *right = left+sq.block_size_half; - count = min(userCount, frameLeft)>>1 & ~1; - used = count*2; - while (count > 0) { - u_char data; - if (get_user(data, userPtr++)) - return -EFAULT; - *left++ = data ^ 0x80; - if (get_user(data, userPtr++)) - return -EFAULT; - *right++ = data ^ 0x80; - count--; - } - } - *frameUsed += used; - return(used); -} - - -static ssize_t ami_ct_s16be(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - u_short data; - - if (!sound.soft.stereo) { - u_char *high = &frame[*frameUsed>>1]; - u_char *low = high+sq.block_size_half; - count = min(userCount, frameLeft)>>1 & ~1; - used = count*2; - while (count > 0) { - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - *high++ = data>>8; - *low++ = (data>>2) & 0x3f; - count--; - } - } else { - u_char *lefth = &frame[*frameUsed>>2]; - u_char *leftl = lefth+sq.block_size_quarter; - u_char *righth = lefth+sq.block_size_half; - u_char *rightl = righth+sq.block_size_quarter; - count = min(userCount, frameLeft)>>2 & ~1; - used = count*4; - while (count > 0) { - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - *lefth++ = data>>8; - *leftl++ = (data>>2) & 0x3f; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - *righth++ = data>>8; - *rightl++ = (data>>2) & 0x3f; - count--; - } - } - *frameUsed += used; - return(used); -} - - -static ssize_t ami_ct_u16be(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - u_short data; - - if (!sound.soft.stereo) { - u_char *high = &frame[*frameUsed>>1]; - u_char *low = high+sq.block_size_half; - count = min(userCount, frameLeft)>>1 & ~1; - used = count*2; - while (count > 0) { - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data ^= 0x8000; - *high++ = data>>8; - *low++ = (data>>2) & 0x3f; - count--; - } - } else { - u_char *lefth = &frame[*frameUsed>>2]; - u_char *leftl = lefth+sq.block_size_quarter; - u_char *righth = lefth+sq.block_size_half; - u_char *rightl = righth+sq.block_size_quarter; - count = min(userCount, frameLeft)>>2 & ~1; - used = count*4; - while (count > 0) { - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data ^= 0x8000; - *lefth++ = data>>8; - *leftl++ = (data>>2) & 0x3f; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data ^= 0x8000; - *righth++ = data>>8; - *rightl++ = (data>>2) & 0x3f; - count--; - } - } - *frameUsed += used; - return(used); -} - - -static ssize_t ami_ct_s16le(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - u_short data; - - if (!sound.soft.stereo) { - u_char *high = &frame[*frameUsed>>1]; - u_char *low = high+sq.block_size_half; - count = min(userCount, frameLeft)>>1 & ~1; - used = count*2; - while (count > 0) { - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data = le2be16(data); - *high++ = data>>8; - *low++ = (data>>2) & 0x3f; - count--; - } - } else { - u_char *lefth = &frame[*frameUsed>>2]; - u_char *leftl = lefth+sq.block_size_quarter; - u_char *righth = lefth+sq.block_size_half; - u_char *rightl = righth+sq.block_size_quarter; - count = min(userCount, frameLeft)>>2 & ~1; - used = count*4; - while (count > 0) { - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data = le2be16(data); - *lefth++ = data>>8; - *leftl++ = (data>>2) & 0x3f; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data = le2be16(data); - *righth++ = data>>8; - *rightl++ = (data>>2) & 0x3f; - count--; - } - } - *frameUsed += used; - return(used); -} - - -static ssize_t ami_ct_u16le(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - u_short data; - - if (!sound.soft.stereo) { - u_char *high = &frame[*frameUsed>>1]; - u_char *low = high+sq.block_size_half; - count = min(userCount, frameLeft)>>1 & ~1; - used = count*2; - while (count > 0) { - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data = le2be16(data) ^ 0x8000; - *high++ = data>>8; - *low++ = (data>>2) & 0x3f; - count--; - } - } else { - u_char *lefth = &frame[*frameUsed>>2]; - u_char *leftl = lefth+sq.block_size_quarter; - u_char *righth = lefth+sq.block_size_half; - u_char *rightl = righth+sq.block_size_quarter; - count = min(userCount, frameLeft)>>2 & ~1; - used = count*4; - while (count > 0) { - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data = le2be16(data) ^ 0x8000; - *lefth++ = data>>8; - *leftl++ = (data>>2) & 0x3f; - if (get_user(data, ((u_short *)userPtr)++)) - return -EFAULT; - data = le2be16(data) ^ 0x8000; - *righth++ = data>>8; - *rightl++ = (data>>2) & 0x3f; - count--; - } - } - *frameUsed += used; - return(used); -} -#endif /* CONFIG_AMIGA */ - -#ifdef CONFIG_PPC -static ssize_t pmac_ct_law(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - short *table = sound.soft.format == AFMT_MU_LAW ? ulaw2dma16: alaw2dma16; - ssize_t count, used; - short *p = (short *) &frame[*frameUsed]; - int val, stereo = sound.soft.stereo; - - frameLeft >>= 2; - if (stereo) - userCount >>= 1; - used = count = min(userCount, frameLeft); - while (count > 0) { - u_char data; - if (get_user(data, userPtr++)) - return -EFAULT; - val = table[data]; - *p++ = val; - if (stereo) { - if (get_user(data, userPtr++)) - return -EFAULT; - val = table[data]; - } - *p++ = val; - count--; - } - *frameUsed += used * 4; - return stereo? used * 2: used; -} - - -static ssize_t pmac_ct_s8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - short *p = (short *) &frame[*frameUsed]; - int val, stereo = sound.soft.stereo; - - frameLeft >>= 2; - if (stereo) - userCount >>= 1; - used = count = min(userCount, frameLeft); - while (count > 0) { - u_char data; - if (get_user(data, userPtr++)) - return -EFAULT; - val = data << 8; - *p++ = val; - if (stereo) { - if (get_user(data, userPtr++)) - return -EFAULT; - val = data << 8; - } - *p++ = val; - count--; - } - *frameUsed += used * 4; - return stereo? used * 2: used; -} - - -static ssize_t pmac_ct_u8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - short *p = (short *) &frame[*frameUsed]; - int val, stereo = sound.soft.stereo; - - frameLeft >>= 2; - if (stereo) - userCount >>= 1; - used = count = min(userCount, frameLeft); - while (count > 0) { - u_char data; - if (get_user(data, userPtr++)) - return -EFAULT; - val = (data ^ 0x80) << 8; - *p++ = val; - if (stereo) { - if (get_user(data, userPtr++)) - return -EFAULT; - val = (data ^ 0x80) << 8; - } - *p++ = val; - count--; - } - *frameUsed += used * 4; - return stereo? used * 2: used; -} - - -static ssize_t pmac_ct_s16(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - int stereo = sound.soft.stereo; - short *fp = (short *) &frame[*frameUsed]; - - frameLeft >>= 2; - userCount >>= (stereo? 2: 1); - used = count = min(userCount, frameLeft); - if (!stereo) { - short *up = (short *) userPtr; - while (count > 0) { - short data; - if (get_user(data, up++)) - return -EFAULT; - *fp++ = data; - *fp++ = data; - count--; - } - } else { - if (copy_from_user(fp, userPtr, count * 4)) - return -EFAULT; - } - *frameUsed += used * 4; - return stereo? used * 4: used * 2; -} - -static ssize_t pmac_ct_u16(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000); - int stereo = sound.soft.stereo; - short *fp = (short *) &frame[*frameUsed]; - short *up = (short *) userPtr; - - frameLeft >>= 2; - userCount >>= (stereo? 2: 1); - used = count = min(userCount, frameLeft); - while (count > 0) { - int data; - if (get_user(data, up++)) - return -EFAULT; - data ^= mask; - *fp++ = data; - if (stereo) { - if (get_user(data, up++)) - return -EFAULT; - data ^= mask; - } - *fp++ = data; - count--; - } - *frameUsed += used * 4; - return stereo? used * 4: used * 2; -} - - -static ssize_t pmac_ctx_law(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - unsigned short *table = (unsigned short *) - (sound.soft.format == AFMT_MU_LAW ? ulaw2dma16: alaw2dma16); - unsigned int data = sound.data; - unsigned int *p = (unsigned int *) &frame[*frameUsed]; - int bal = sound.bal; - int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed; - int utotal, ftotal; - int stereo = sound.soft.stereo; - - frameLeft >>= 2; - if (stereo) - userCount >>= 1; - ftotal = frameLeft; - utotal = userCount; - while (frameLeft) { - u_char c; - if (bal < 0) { - if (userCount == 0) - break; - if (get_user(c, userPtr++)) - return -EFAULT; - data = table[c]; - if (stereo) { - if (get_user(c, userPtr++)) - return -EFAULT; - data = (data << 16) + table[c]; - } else - data = (data << 16) + data; - userCount--; - bal += hSpeed; - } - *p++ = data; - frameLeft--; - bal -= sSpeed; - } - sound.bal = bal; - sound.data = data; - *frameUsed += (ftotal - frameLeft) * 4; - utotal -= userCount; - return stereo? utotal * 2: utotal; -} - - -static ssize_t pmac_ctx_s8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - unsigned int *p = (unsigned int *) &frame[*frameUsed]; - unsigned int data = sound.data; - int bal = sound.bal; - int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed; - int stereo = sound.soft.stereo; - int utotal, ftotal; - - frameLeft >>= 2; - if (stereo) - userCount >>= 1; - ftotal = frameLeft; - utotal = userCount; - while (frameLeft) { - u_char c; - if (bal < 0) { - if (userCount == 0) - break; - if (get_user(c, userPtr++)) - return -EFAULT; - data = c << 8; - if (stereo) { - if (get_user(c, userPtr++)) - return -EFAULT; - data = (data << 16) + (c << 8); - } else - data = (data << 16) + data; - userCount--; - bal += hSpeed; - } - *p++ = data; - frameLeft--; - bal -= sSpeed; - } - sound.bal = bal; - sound.data = data; - *frameUsed += (ftotal - frameLeft) * 4; - utotal -= userCount; - return stereo? utotal * 2: utotal; -} - - -static ssize_t pmac_ctx_u8(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - unsigned int *p = (unsigned int *) &frame[*frameUsed]; - unsigned int data = sound.data; - int bal = sound.bal; - int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed; - int stereo = sound.soft.stereo; - int utotal, ftotal; - - frameLeft >>= 2; - if (stereo) - userCount >>= 1; - ftotal = frameLeft; - utotal = userCount; - while (frameLeft) { - u_char c; - if (bal < 0) { - if (userCount == 0) - break; - if (get_user(c, userPtr++)) - return -EFAULT; - data = (c ^ 0x80) << 8; - if (stereo) { - if (get_user(c, userPtr++)) - return -EFAULT; - data = (data << 16) + ((c ^ 0x80) << 8); - } else - data = (data << 16) + data; - userCount--; - bal += hSpeed; - } - *p++ = data; - frameLeft--; - bal -= sSpeed; - } - sound.bal = bal; - sound.data = data; - *frameUsed += (ftotal - frameLeft) * 4; - utotal -= userCount; - return stereo? utotal * 2: utotal; -} - - -static ssize_t pmac_ctx_s16(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - unsigned int *p = (unsigned int *) &frame[*frameUsed]; - unsigned int data = sound.data; - unsigned short *up = (unsigned short *) userPtr; - int bal = sound.bal; - int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed; - int stereo = sound.soft.stereo; - int utotal, ftotal; - - frameLeft >>= 2; - userCount >>= (stereo? 2: 1); - ftotal = frameLeft; - utotal = userCount; - while (frameLeft) { - unsigned short c; - if (bal < 0) { - if (userCount == 0) - break; - if (get_user(data, up++)) - return -EFAULT; - if (stereo) { - if (get_user(c, up++)) - return -EFAULT; - data = (data << 16) + c; - } else - data = (data << 16) + data; - userCount--; - bal += hSpeed; - } - *p++ = data; - frameLeft--; - bal -= sSpeed; - } - sound.bal = bal; - sound.data = data; - *frameUsed += (ftotal - frameLeft) * 4; - utotal -= userCount; - return stereo? utotal * 4: utotal * 2; -} - - -static ssize_t pmac_ctx_u16(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000); - unsigned int *p = (unsigned int *) &frame[*frameUsed]; - unsigned int data = sound.data; - unsigned short *up = (unsigned short *) userPtr; - int bal = sound.bal; - int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed; - int stereo = sound.soft.stereo; - int utotal, ftotal; - - frameLeft >>= 2; - userCount >>= (stereo? 2: 1); - ftotal = frameLeft; - utotal = userCount; - while (frameLeft) { - unsigned short c; - if (bal < 0) { - if (userCount == 0) - break; - if (get_user(data, up++)) - return -EFAULT; - data ^= mask; - if (stereo) { - if (get_user(c, up++)) - return -EFAULT; - data = (data << 16) + (c ^ mask); - } else - data = (data << 16) + data; - userCount--; - bal += hSpeed; - } - *p++ = data; - frameLeft--; - bal -= sSpeed; - } - sound.bal = bal; - sound.data = data; - *frameUsed += (ftotal - frameLeft) * 4; - utotal -= userCount; - return stereo? utotal * 4: utotal * 2; -} - -static ssize_t pmac_ct_s8_read(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - short *p = (short *) &frame[*frameUsed]; - int val, stereo = sound.soft.stereo; - - frameLeft >>= 2; - if (stereo) - userCount >>= 1; - used = count = min(userCount, frameLeft); - while (count > 0) { - u_char data; - - val = *p++; - data = val >> 8; - if (put_user(data, (u_char *)userPtr++)) - return -EFAULT; - if (stereo) { - val = *p; - data = val >> 8; - if (put_user(data, (u_char *)userPtr++)) - return -EFAULT; - } - p++; - count--; - } - *frameUsed += used * 4; - return stereo? used * 2: used; -} - - -static ssize_t pmac_ct_u8_read(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - short *p = (short *) &frame[*frameUsed]; - int val, stereo = sound.soft.stereo; - - frameLeft >>= 2; - if (stereo) - userCount >>= 1; - used = count = min(userCount, frameLeft); - while (count > 0) { - u_char data; - - val = *p++; - data = (val >> 8) ^ 0x80; - if (put_user(data, (u_char *)userPtr++)) - return -EFAULT; - if (stereo) { - val = *p; - data = (val >> 8) ^ 0x80; - if (put_user(data, (u_char *)userPtr++)) - return -EFAULT; - } - p++; - count--; - } - *frameUsed += used * 4; - return stereo? used * 2: used; -} - - -static ssize_t pmac_ct_s16_read(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - int stereo = sound.soft.stereo; - short *fp = (short *) &frame[*frameUsed]; - - frameLeft >>= 2; - userCount >>= (stereo? 2: 1); - used = count = min(userCount, frameLeft); - if (!stereo) { - short *up = (short *) userPtr; - while (count > 0) { - short data; - data = *fp; - if (put_user(data, up++)) - return -EFAULT; - fp+=2; - count--; - } - } else { - if (copy_to_user((u_char *)userPtr, fp, count * 4)) - return -EFAULT; - } - *frameUsed += used * 4; - return stereo? used * 4: used * 2; -} - -static ssize_t pmac_ct_u16_read(const u_char *userPtr, size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t count, used; - int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000); - int stereo = sound.soft.stereo; - short *fp = (short *) &frame[*frameUsed]; - short *up = (short *) userPtr; - - frameLeft >>= 2; - userCount >>= (stereo? 2: 1); - used = count = min(userCount, frameLeft); - while (count > 0) { - int data; - - data = *fp++; - data ^= mask; - if (put_user(data, up++)) - return -EFAULT; - if (stereo) { - data = *fp; - data ^= mask; - if (put_user(data, up++)) - return -EFAULT; - } - fp++; - count--; - } - *frameUsed += used * 4; - return stereo? used * 4: used * 2; -} - - -#endif /* CONFIG_PPC */ - - -#ifdef CONFIG_ATARI -static TRANS transTTNormal = { - ata_ct_law, ata_ct_law, ata_ct_s8, ata_ct_u8, NULL, NULL, NULL, NULL -}; - -static TRANS transTTExpanding = { - ata_ctx_law, ata_ctx_law, ata_ctx_s8, ata_ctx_u8, NULL, NULL, NULL, NULL -}; - -static TRANS transFalconNormal = { - ata_ct_law, ata_ct_law, ata_ct_s8, ata_ct_u8, - ata_ct_s16be, ata_ct_u16be, ata_ct_s16le, ata_ct_u16le -}; - -static TRANS transFalconExpanding = { - ata_ctx_law, ata_ctx_law, ata_ctx_s8, ata_ctx_u8, - ata_ctx_s16be, ata_ctx_u16be, ata_ctx_s16le, ata_ctx_u16le -}; -#endif /* CONFIG_ATARI */ - -#ifdef CONFIG_AMIGA -static TRANS transAmiga = { - ami_ct_law, ami_ct_law, ami_ct_s8, ami_ct_u8, - ami_ct_s16be, ami_ct_u16be, ami_ct_s16le, ami_ct_u16le -}; -#endif /* CONFIG_AMIGA */ - -#ifdef CONFIG_PPC -static TRANS transAwacsNormal = { - pmac_ct_law, pmac_ct_law, pmac_ct_s8, pmac_ct_u8, - pmac_ct_s16, pmac_ct_u16, pmac_ct_s16, pmac_ct_u16 -}; - -static TRANS transAwacsExpand = { - pmac_ctx_law, pmac_ctx_law, pmac_ctx_s8, pmac_ctx_u8, - pmac_ctx_s16, pmac_ctx_u16, pmac_ctx_s16, pmac_ctx_u16 -}; - -static TRANS transAwacsNormalRead = { - NULL, NULL, pmac_ct_s8_read, pmac_ct_u8_read, - pmac_ct_s16_read, pmac_ct_u16_read, pmac_ct_s16_read, pmac_ct_u16_read -}; -#endif /* CONFIG_PPC */ - -/*** Low level stuff *********************************************************/ - - -#ifdef CONFIG_ATARI - -/* - * Atari (TT/Falcon) - */ - -static void *AtaAlloc(unsigned int size, int flags) -{ - return( atari_stram_alloc( size, NULL, "dmasound" )); -} - -static void AtaFree(void *obj, unsigned int size) -{ - atari_stram_free( obj ); -} - -static int __init AtaIrqInit(void) -{ - /* Set up timer A. Timer A - will receive a signal upon end of playing from the sound - hardware. Furthermore Timer A is able to count events - and will cause an interrupt after a programmed number - of events. So all we need to keep the music playing is - to provide the sound hardware with new data upon - an interrupt from timer A. */ - mfp.tim_ct_a = 0; /* ++roman: Stop timer before programming! */ - mfp.tim_dt_a = 1; /* Cause interrupt after first event. */ - mfp.tim_ct_a = 8; /* Turn on event counting. */ - /* Register interrupt handler. */ - request_irq(IRQ_MFP_TIMA, ata_sq_interrupt, IRQ_TYPE_SLOW, - "DMA sound", ata_sq_interrupt); - mfp.int_en_a |= 0x20; /* Turn interrupt on. */ - mfp.int_mk_a |= 0x20; - return(1); -} - -#ifdef MODULE -static void AtaIrqCleanUp(void) -{ - mfp.tim_ct_a = 0; /* stop timer */ - mfp.int_en_a &= ~0x20; /* turn interrupt off */ - free_irq(IRQ_MFP_TIMA, ata_sq_interrupt); -} -#endif /* MODULE */ - - -#define TONE_VOXWARE_TO_DB(v) \ - (((v) < 0) ? -12 : ((v) > 100) ? 12 : ((v) - 50) * 6 / 25) -#define TONE_DB_TO_VOXWARE(v) (((v) * 25 + ((v) > 0 ? 5 : -5)) / 6 + 50) - - -static int AtaSetBass(int bass) -{ - sound.bass = TONE_VOXWARE_TO_DB(bass); - atari_microwire_cmd(MW_LM1992_BASS(sound.bass)); - return(TONE_DB_TO_VOXWARE(sound.bass)); -} - - -static int AtaSetTreble(int treble) -{ - sound.treble = TONE_VOXWARE_TO_DB(treble); - atari_microwire_cmd(MW_LM1992_TREBLE(sound.treble)); - return(TONE_DB_TO_VOXWARE(sound.treble)); -} - - - -/* - * TT - */ - - -static void TTSilence(void) -{ - tt_dmasnd.ctrl = DMASND_CTRL_OFF; - atari_microwire_cmd(MW_LM1992_PSG_HIGH); /* mix in PSG signal 1:1 */ -} - - -static void TTInit(void) -{ - int mode, i, idx; - const int freq[4] = {50066, 25033, 12517, 6258}; - - /* search a frequency that fits into the allowed error range */ - - idx = -1; - for (i = 0; i < arraysize(freq); i++) - /* this isn't as much useful for a TT than for a Falcon, but - * then it doesn't hurt very much to implement it for a TT too. - */ - if ((100 * abs(sound.soft.speed - freq[i]) / freq[i]) < catchRadius) - idx = i; - if (idx > -1) { - sound.soft.speed = freq[idx]; - sound.trans = &transTTNormal; - } else - sound.trans = &transTTExpanding; - - TTSilence(); - sound.hard = sound.soft; - - if (sound.hard.speed > 50066) { - /* we would need to squeeze the sound, but we won't do that */ - sound.hard.speed = 50066; - mode = DMASND_MODE_50KHZ; - sound.trans = &transTTNormal; - } else if (sound.hard.speed > 25033) { - sound.hard.speed = 50066; - mode = DMASND_MODE_50KHZ; - } else if (sound.hard.speed > 12517) { - sound.hard.speed = 25033; - mode = DMASND_MODE_25KHZ; - } else if (sound.hard.speed > 6258) { - sound.hard.speed = 12517; - mode = DMASND_MODE_12KHZ; - } else { - sound.hard.speed = 6258; - mode = DMASND_MODE_6KHZ; - } - - tt_dmasnd.mode = (sound.hard.stereo ? - DMASND_MODE_STEREO : DMASND_MODE_MONO) | - DMASND_MODE_8BIT | mode; - - sound.bal = -sound.soft.speed; -} - - -static int TTSetFormat(int format) -{ - /* TT sound DMA supports only 8bit modes */ - - switch (format) { - case AFMT_QUERY: - return(sound.soft.format); - case AFMT_MU_LAW: - case AFMT_A_LAW: - case AFMT_S8: - case AFMT_U8: - break; - default: - format = AFMT_S8; - } - - sound.soft.format = format; - sound.soft.size = 8; - if (sound.minDev == SND_DEV_DSP) { - sound.dsp.format = format; - sound.dsp.size = 8; - } - TTInit(); - - return(format); -} - - -#define VOLUME_VOXWARE_TO_DB(v) \ - (((v) < 0) ? -40 : ((v) > 100) ? 0 : ((v) * 2) / 5 - 40) -#define VOLUME_DB_TO_VOXWARE(v) ((((v) + 40) * 5 + 1) / 2) - - -static int TTSetVolume(int volume) -{ - sound.volume_left = VOLUME_VOXWARE_TO_DB(volume & 0xff); - atari_microwire_cmd(MW_LM1992_BALLEFT(sound.volume_left)); - sound.volume_right = VOLUME_VOXWARE_TO_DB((volume & 0xff00) >> 8); - atari_microwire_cmd(MW_LM1992_BALRIGHT(sound.volume_right)); - return(VOLUME_DB_TO_VOXWARE(sound.volume_left) | - (VOLUME_DB_TO_VOXWARE(sound.volume_right) << 8)); -} - - -#define GAIN_VOXWARE_TO_DB(v) \ - (((v) < 0) ? -80 : ((v) > 100) ? 0 : ((v) * 4) / 5 - 80) -#define GAIN_DB_TO_VOXWARE(v) ((((v) + 80) * 5 + 1) / 4) - -static int TTSetGain(int gain) -{ - sound.gain = GAIN_VOXWARE_TO_DB(gain); - atari_microwire_cmd(MW_LM1992_VOLUME(sound.gain)); - return GAIN_DB_TO_VOXWARE(sound.gain); -} - - - -/* - * Falcon - */ - - -static void FalconSilence(void) -{ - /* stop playback, set sample rate 50kHz for PSG sound */ - tt_dmasnd.ctrl = DMASND_CTRL_OFF; - tt_dmasnd.mode = DMASND_MODE_50KHZ | DMASND_MODE_STEREO | DMASND_MODE_8BIT; - tt_dmasnd.int_div = 0; /* STE compatible divider */ - tt_dmasnd.int_ctrl = 0x0; - tt_dmasnd.cbar_src = 0x0000; /* no matrix inputs */ - tt_dmasnd.cbar_dst = 0x0000; /* no matrix outputs */ - tt_dmasnd.dac_src = 1; /* connect ADC to DAC, disconnect matrix */ - tt_dmasnd.adc_src = 3; /* ADC Input = PSG */ -} - - -static void FalconInit(void) -{ - int divider, i, idx; - const int freq[8] = {49170, 32780, 24585, 19668, 16390, 12292, 9834, 8195}; - - /* search a frequency that fits into the allowed error range */ - - idx = -1; - for (i = 0; i < arraysize(freq); i++) - /* if we will tolerate 3% error 8000Hz->8195Hz (2.38%) would - * be playable without expanding, but that now a kernel runtime - * option - */ - if ((100 * abs(sound.soft.speed - freq[i]) / freq[i]) < catchRadius) - idx = i; - if (idx > -1) { - sound.soft.speed = freq[idx]; - sound.trans = &transFalconNormal; - } else - sound.trans = &transFalconExpanding; - - FalconSilence(); - sound.hard = sound.soft; - - if (sound.hard.size == 16) { - /* the Falcon can play 16bit samples only in stereo */ - sound.hard.stereo = 1; - } - - if (sound.hard.speed > 49170) { - /* we would need to squeeze the sound, but we won't do that */ - sound.hard.speed = 49170; - divider = 1; - sound.trans = &transFalconNormal; - } else if (sound.hard.speed > 32780) { - sound.hard.speed = 49170; - divider = 1; - } else if (sound.hard.speed > 24585) { - sound.hard.speed = 32780; - divider = 2; - } else if (sound.hard.speed > 19668) { - sound.hard.speed = 24585; - divider = 3; - } else if (sound.hard.speed > 16390) { - sound.hard.speed = 19668; - divider = 4; - } else if (sound.hard.speed > 12292) { - sound.hard.speed = 16390; - divider = 5; - } else if (sound.hard.speed > 9834) { - sound.hard.speed = 12292; - divider = 7; - } else if (sound.hard.speed > 8195) { - sound.hard.speed = 9834; - divider = 9; - } else { - sound.hard.speed = 8195; - divider = 11; - } - tt_dmasnd.int_div = divider; - - /* Setup Falcon sound DMA for playback */ - tt_dmasnd.int_ctrl = 0x4; /* Timer A int at play end */ - tt_dmasnd.track_select = 0x0; /* play 1 track, track 1 */ - tt_dmasnd.cbar_src = 0x0001; /* DMA(25MHz) --> DAC */ - tt_dmasnd.cbar_dst = 0x0000; - tt_dmasnd.rec_track_select = 0; - tt_dmasnd.dac_src = 2; /* connect matrix to DAC */ - tt_dmasnd.adc_src = 0; /* ADC Input = Mic */ - - tt_dmasnd.mode = (sound.hard.stereo ? - DMASND_MODE_STEREO : DMASND_MODE_MONO) | - ((sound.hard.size == 8) ? - DMASND_MODE_8BIT : DMASND_MODE_16BIT) | - DMASND_MODE_6KHZ; - - sound.bal = -sound.soft.speed; -} - - -static int FalconSetFormat(int format) -{ - int size; - /* Falcon sound DMA supports 8bit and 16bit modes */ - - switch (format) { - case AFMT_QUERY: - return(sound.soft.format); - case AFMT_MU_LAW: - case AFMT_A_LAW: - case AFMT_U8: - case AFMT_S8: - size = 8; - break; - case AFMT_S16_BE: - case AFMT_U16_BE: - case AFMT_S16_LE: - case AFMT_U16_LE: - size = 16; - break; - default: /* :-) */ - size = 8; - format = AFMT_S8; - } - - sound.soft.format = format; - sound.soft.size = size; - if (sound.minDev == SND_DEV_DSP) { - sound.dsp.format = format; - sound.dsp.size = sound.soft.size; - } - - FalconInit(); - - return(format); -} - - -/* This is for the Falcon output *attenuation* in 1.5dB steps, - * i.e. output level from 0 to -22.5dB in -1.5dB steps. - */ -#define VOLUME_VOXWARE_TO_ATT(v) \ - ((v) < 0 ? 15 : (v) > 100 ? 0 : 15 - (v) * 3 / 20) -#define VOLUME_ATT_TO_VOXWARE(v) (100 - (v) * 20 / 3) - - -static int FalconSetVolume(int volume) -{ - sound.volume_left = VOLUME_VOXWARE_TO_ATT(volume & 0xff); - sound.volume_right = VOLUME_VOXWARE_TO_ATT((volume & 0xff00) >> 8); - tt_dmasnd.output_atten = sound.volume_left << 8 | sound.volume_right << 4; - return(VOLUME_ATT_TO_VOXWARE(sound.volume_left) | - VOLUME_ATT_TO_VOXWARE(sound.volume_right) << 8); -} - - -static void ata_sq_play_next_frame(int index) -{ - char *start, *end; - - /* used by AtaPlay() if all doubts whether there really is something - * to be played are already wiped out. - */ - start = sq_block_address(sq.front); - end = start+((sq.count == index) ? sq.rear_size : sq.block_size); - /* end might not be a legal virtual address. */ - DMASNDSetEnd(virt_to_phys(end - 1) + 1); - DMASNDSetBase(virt_to_phys(start)); - /* Since only an even number of samples per frame can - be played, we might lose one byte here. (TO DO) */ - sq.front = (sq.front+1) % sq.max_count; - sq.active++; - tt_dmasnd.ctrl = DMASND_CTRL_ON | DMASND_CTRL_REPEAT; -} - - -static void AtaPlay(void) -{ - /* ++TeSche: Note that sq.active is no longer just a flag but holds - * the number of frames the DMA is currently programmed for instead, - * may be 0, 1 (currently being played) or 2 (pre-programmed). - * - * Changes done to sq.count and sq.active are a bit more subtle again - * so now I must admit I also prefer disabling the irq here rather - * than considering all possible situations. But the point is that - * disabling the irq doesn't have any bad influence on this version of - * the driver as we benefit from having pre-programmed the DMA - * wherever possible: There's no need to reload the DMA at the exact - * time of an interrupt but only at some time while the pre-programmed - * frame is playing! - */ - atari_disable_irq(IRQ_MFP_TIMA); - - if (sq.active == 2 || /* DMA is 'full' */ - sq.count <= 0) { /* nothing to do */ - atari_enable_irq(IRQ_MFP_TIMA); - return; - } - - if (sq.active == 0) { - /* looks like there's nothing 'in' the DMA yet, so try - * to put two frames into it (at least one is available). - */ - if (sq.count == 1 && sq.rear_size < sq.block_size && !sq.syncing) { - /* hmmm, the only existing frame is not - * yet filled and we're not syncing? - */ - atari_enable_irq(IRQ_MFP_TIMA); - return; - } - ata_sq_play_next_frame(1); - if (sq.count == 1) { - /* no more frames */ - atari_enable_irq(IRQ_MFP_TIMA); - return; - } - if (sq.count == 2 && sq.rear_size < sq.block_size && !sq.syncing) { - /* hmmm, there were two frames, but the second - * one is not yet filled and we're not syncing? - */ - atari_enable_irq(IRQ_MFP_TIMA); - return; - } - ata_sq_play_next_frame(2); - } else { - /* there's already a frame being played so we may only stuff - * one new into the DMA, but even if this may be the last - * frame existing the previous one is still on sq.count. - */ - if (sq.count == 2 && sq.rear_size < sq.block_size && !sq.syncing) { - /* hmmm, the only existing frame is not - * yet filled and we're not syncing? - */ - atari_enable_irq(IRQ_MFP_TIMA); - return; - } - ata_sq_play_next_frame(2); - } - atari_enable_irq(IRQ_MFP_TIMA); -} - - -static void ata_sq_interrupt(int irq, void *dummy, struct pt_regs *fp) -{ -#if 0 - /* ++TeSche: if you should want to test this... */ - static int cnt = 0; - if (sq.active == 2) - if (++cnt == 10) { - /* simulate losing an interrupt */ - cnt = 0; - return; - } -#endif - - if (sq.ignore_int && (sound.mach.type == DMASND_FALCON)) { - /* ++TeSche: Falcon only: ignore first irq because it comes - * immediately after starting a frame. after that, irqs come - * (almost) like on the TT. - */ - sq.ignore_int = 0; - return; - } - - if (!sq.active) { - /* playing was interrupted and sq_reset() has already cleared - * the sq variables, so better don't do anything here. - */ - WAKE_UP(sq.sync_queue); - return; - } - - /* Probably ;) one frame is finished. Well, in fact it may be that a - * pre-programmed one is also finished because there has been a long - * delay in interrupt delivery and we've completely lost one, but - * there's no way to detect such a situation. In such a case the last - * frame will be played more than once and the situation will recover - * as soon as the irq gets through. - */ - sq.count--; - sq.active--; - - if (!sq.active) { - tt_dmasnd.ctrl = DMASND_CTRL_OFF; - sq.ignore_int = 1; - } - - WAKE_UP(sq.action_queue); - /* At least one block of the queue is free now - so wake up a writing process blocked because - of a full queue. */ - - if ((sq.active != 1) || (sq.count != 1)) - /* We must be a bit carefully here: sq.count indicates the - * number of buffers used and not the number of frames to - * be played. If sq.count==1 and sq.active==1 that means - * the only remaining frame was already programmed earlier - * (and is currently running) so we mustn't call AtaPlay() - * here, otherwise we'll play one frame too much. - */ - AtaPlay(); - - if (!sq.active) WAKE_UP(sq.sync_queue); - /* We are not playing after AtaPlay(), so there - is nothing to play any more. Wake up a process - waiting for audio output to drain. */ -} -#endif /* CONFIG_ATARI */ - - -#ifdef CONFIG_AMIGA - -/* - * Amiga - */ - -#define StopDMA() custom.aud[0].audvol = custom.aud[1].audvol = 0; \ - custom.aud[2].audvol = custom.aud[3].audvol = 0; \ - custom.dmacon = AMI_AUDIO_OFF; - -static void *AmiAlloc(unsigned int size, int flags) -{ - return amiga_chip_alloc((long)size, "dmasound"); -} - -static void AmiFree(void *obj, unsigned int size) -{ - amiga_chip_free (obj); -} - -static int __init AmiIrqInit(void) -{ - /* turn off DMA for audio channels */ - StopDMA(); - - /* Register interrupt handler. */ - if (request_irq(IRQ_AMIGA_AUD0, ami_sq_interrupt, 0, - "DMA sound", ami_sq_interrupt)) - return(0); - return(1); -} - -#ifdef MODULE -static void AmiIrqCleanUp(void) -{ - /* turn off DMA for audio channels */ - StopDMA(); - /* release the interrupt */ - free_irq(IRQ_AMIGA_AUD0, ami_sq_interrupt); -} -#endif /* MODULE */ - -static void AmiSilence(void) -{ - /* turn off DMA for audio channels */ - StopDMA(); -} - - -static void AmiInit(void) -{ - int period, i; - - AmiSilence(); - - if (sound.soft.speed) - period = amiga_colorclock/sound.soft.speed-1; - else - period = amiga_audio_min_period; - sound.hard = sound.soft; - sound.trans = &transAmiga; - - if (period < amiga_audio_min_period) { - /* we would need to squeeze the sound, but we won't do that */ - period = amiga_audio_min_period; - } else if (period > 65535) { - period = 65535; - } - sound.hard.speed = amiga_colorclock/(period+1); - - for (i = 0; i < 4; i++) - custom.aud[i].audper = period; - amiga_audio_period = period; - - AmiSetTreble(50); /* recommended for newer amiga models */ -} - - -static int AmiSetFormat(int format) -{ - int size; - - /* Amiga sound DMA supports 8bit and 16bit (pseudo 14 bit) modes */ - - switch (format) { - case AFMT_QUERY: - return(sound.soft.format); - case AFMT_MU_LAW: - case AFMT_A_LAW: - case AFMT_U8: - case AFMT_S8: - size = 8; - break; - case AFMT_S16_BE: - case AFMT_U16_BE: - case AFMT_S16_LE: - case AFMT_U16_LE: - size = 16; - break; - default: /* :-) */ - size = 8; - format = AFMT_S8; - } - - sound.soft.format = format; - sound.soft.size = size; - if (sound.minDev == SND_DEV_DSP) { - sound.dsp.format = format; - sound.dsp.size = sound.soft.size; - } - AmiInit(); - - return(format); -} - - -#define VOLUME_VOXWARE_TO_AMI(v) \ - (((v) < 0) ? 0 : ((v) > 100) ? 64 : ((v) * 64)/100) -#define VOLUME_AMI_TO_VOXWARE(v) ((v)*100/64) - -static int AmiSetVolume(int volume) -{ - sound.volume_left = VOLUME_VOXWARE_TO_AMI(volume & 0xff); - custom.aud[0].audvol = sound.volume_left; - sound.volume_right = VOLUME_VOXWARE_TO_AMI((volume & 0xff00) >> 8); - custom.aud[1].audvol = sound.volume_right; - if (sound.hard.size == 16) { - if (sound.volume_left == 64 && sound.volume_right == 64) { - custom.aud[2].audvol = 1; - custom.aud[3].audvol = 1; - } else { - custom.aud[2].audvol = 0; - custom.aud[3].audvol = 0; - } - } - return(VOLUME_AMI_TO_VOXWARE(sound.volume_left) | - (VOLUME_AMI_TO_VOXWARE(sound.volume_right) << 8)); -} - -static int AmiSetTreble(int treble) -{ - sound.treble = treble; - if (treble < 50) - ciaa.pra &= ~0x02; - else - ciaa.pra |= 0x02; - return(treble); -} - - -#define AMI_PLAY_LOADED 1 -#define AMI_PLAY_PLAYING 2 -#define AMI_PLAY_MASK 3 - - -static void ami_sq_play_next_frame(int index) -{ - u_char *start, *ch0, *ch1, *ch2, *ch3; - u_long size; - - /* used by AmiPlay() if all doubts whether there really is something - * to be played are already wiped out. - */ - start = sq_block_address(sq.front); - size = (sq.count == index ? sq.rear_size : sq.block_size)>>1; - - if (sound.hard.stereo) { - ch0 = start; - ch1 = start+sq.block_size_half; - size >>= 1; - } else { - ch0 = start; - ch1 = start; - } - - custom.aud[0].audvol = sound.volume_left; - custom.aud[1].audvol = sound.volume_right; - if (sound.hard.size == 8) { - custom.aud[0].audlc = (u_short *)ZTWO_PADDR(ch0); - custom.aud[0].audlen = size; - custom.aud[1].audlc = (u_short *)ZTWO_PADDR(ch1); - custom.aud[1].audlen = size; - custom.dmacon = AMI_AUDIO_8; - } else { - size >>= 1; - custom.aud[0].audlc = (u_short *)ZTWO_PADDR(ch0); - custom.aud[0].audlen = size; - custom.aud[1].audlc = (u_short *)ZTWO_PADDR(ch1); - custom.aud[1].audlen = size; - if (sound.volume_left == 64 && sound.volume_right == 64) { - /* We can play pseudo 14-bit only with the maximum volume */ - ch3 = ch0+sq.block_size_quarter; - ch2 = ch1+sq.block_size_quarter; - custom.aud[2].audvol = 1; /* we are being affected by the beeps */ - custom.aud[3].audvol = 1; /* restoring volume here helps a bit */ - custom.aud[2].audlc = (u_short *)ZTWO_PADDR(ch2); - custom.aud[2].audlen = size; - custom.aud[3].audlc = (u_short *)ZTWO_PADDR(ch3); - custom.aud[3].audlen = size; - custom.dmacon = AMI_AUDIO_14; - } else { - custom.aud[2].audvol = 0; - custom.aud[3].audvol = 0; - custom.dmacon = AMI_AUDIO_8; - } - } - sq.front = (sq.front+1) % sq.max_count; - sq.active |= AMI_PLAY_LOADED; -} - - -static void AmiPlay(void) -{ - int minframes = 1; - - custom.intena = IF_AUD0; - - if (sq.active & AMI_PLAY_LOADED) { - /* There's already a frame loaded */ - custom.intena = IF_SETCLR | IF_AUD0; - return; - } - - if (sq.active & AMI_PLAY_PLAYING) - /* Increase threshold: frame 1 is already being played */ - minframes = 2; - - if (sq.count < minframes) { - /* Nothing to do */ - custom.intena = IF_SETCLR | IF_AUD0; - return; - } - - if (sq.count <= minframes && sq.rear_size < sq.block_size && !sq.syncing) { - /* hmmm, the only existing frame is not - * yet filled and we're not syncing? - */ - custom.intena = IF_SETCLR | IF_AUD0; - return; - } - - ami_sq_play_next_frame(minframes); - - custom.intena = IF_SETCLR | IF_AUD0; -} - - -static void ami_sq_interrupt(int irq, void *dummy, struct pt_regs *fp) -{ - int minframes = 1; - - custom.intena = IF_AUD0; - - if (!sq.active) { - /* Playing was interrupted and sq_reset() has already cleared - * the sq variables, so better don't do anything here. - */ - WAKE_UP(sq.sync_queue); - return; - } - - if (sq.active & AMI_PLAY_PLAYING) { - /* We've just finished a frame */ - sq.count--; - WAKE_UP(sq.action_queue); - } - - if (sq.active & AMI_PLAY_LOADED) - /* Increase threshold: frame 1 is already being played */ - minframes = 2; - - /* Shift the flags */ - sq.active = (sq.active<<1) & AMI_PLAY_MASK; - - if (!sq.active) - /* No frame is playing, disable audio DMA */ - StopDMA(); - - custom.intena = IF_SETCLR | IF_AUD0; - - if (sq.count >= minframes) - /* Try to play the next frame */ - AmiPlay(); - - if (!sq.active) - /* Nothing to play anymore. - Wake up a process waiting for audio output to drain. */ - WAKE_UP(sq.sync_queue); -} -#endif /* CONFIG_AMIGA */ - -#ifdef CONFIG_PPC - -/* - * PCI PowerMac, with AWACS and DBDMA. - */ - -static void *PMacAlloc(unsigned int size, int flags) -{ - return kmalloc(size, flags); -} - -static void PMacFree(void *ptr, unsigned int size) -{ - kfree(ptr); -} - -static int __init PMacIrqInit(void) -{ - if (request_irq(awacs_irq, pmac_awacs_intr, 0, "AWACS", 0) - || request_irq(awacs_tx_irq, pmac_awacs_tx_intr, 0, "AWACS out", 0) - || request_irq(awacs_rx_irq, pmac_awacs_rx_intr, 0, "AWACS in", 0)) - return 0; - return 1; -} - -#ifdef MODULE -static void PMacIrqCleanup(void) -{ - /* turn off output dma */ - out_le32(&awacs_txdma->control, RUN<<16); - /* disable interrupts from awacs interface */ - out_le32(&awacs->control, in_le32(&awacs->control) & 0xfff); -#ifdef CONFIG_PMAC_PBOOK - if (is_pbook_G3) { - feature_clear(awacs_node, FEATURE_Sound_power); - feature_clear(awacs_node, FEATURE_Sound_CLK_enable); - } -#endif - free_irq(awacs_irq, 0); - free_irq(awacs_tx_irq, 0); - free_irq(awacs_rx_irq, 0); - kfree(awacs_tx_cmd_space); - if (awacs_rx_cmd_space) - kfree(awacs_rx_cmd_space); - if (beep_buf) - kfree(beep_buf); - kd_mksound = orig_mksound; -#ifdef CONFIG_PMAC_PBOOK - pmu_unregister_sleep_notifier(&awacs_sleep_notifier); -#endif -} -#endif /* MODULE */ - -static void PMacSilence(void) -{ - /* turn off output dma */ - out_le32(&awacs_txdma->control, RUN<<16); -} - -static int awacs_freqs[8] = { - 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350 -}; -static int awacs_freqs_ok[8] = { 1, 1, 1, 1, 1, 1, 1, 1 }; - -static void PMacInit(void) -{ - int i, tolerance; - - switch (sound.soft.format) { - case AFMT_S16_LE: - case AFMT_U16_LE: - sound.hard.format = AFMT_S16_LE; - break; - default: - sound.hard.format = AFMT_S16_BE; - break; - } - sound.hard.stereo = 1; - sound.hard.size = 16; - - /* - * If we have a sample rate which is within catchRadius percent - * of the requested value, we don't have to expand the samples. - * Otherwise choose the next higher rate. - * N.B.: burgundy awacs (iMac and later) only works at 44100 Hz. - */ - i = 8; - do { - tolerance = catchRadius * awacs_freqs[--i] / 100; - if (awacs_freqs_ok[i] - && sound.soft.speed <= awacs_freqs[i] + tolerance) - break; - } while (i > 0); - if (sound.soft.speed >= awacs_freqs[i] - tolerance) - sound.trans = &transAwacsNormal; - else - sound.trans = &transAwacsExpand; - sound.read_trans = &transAwacsNormalRead; - sound.hard.speed = awacs_freqs[i]; - awacs_rate_index = i; - - /* XXX disable error interrupt on burgundy for now */ - out_le32(&awacs->control, MASK_IEPC | (i << 8) | 0x11 - | (awacs_revision < AWACS_BURGUNDY? MASK_IEE: 0)); - awacs_reg[1] = (awacs_reg[1] & ~MASK_SAMPLERATE) | (i << 3); - awacs_write(awacs_reg[1] | MASK_ADDR1); - out_le32(&awacs->byteswap, sound.hard.format != AFMT_S16_BE); - - /* We really want to execute a DMA stop command, after the AWACS - * is initialized. - * For reasons I don't understand, it stops the hissing noise - * common to many PowerBook G3 systems (like mine :-). - */ - out_le32(&awacs_txdma->control, (RUN|WAKE|FLUSH|PAUSE) << 16); - st_le16(&beep_dbdma_cmd->command, DBDMA_STOP); - out_le32(&awacs_txdma->cmdptr, virt_to_bus(beep_dbdma_cmd)); - out_le32(&awacs_txdma->control, RUN | (RUN << 16)); - - sound.bal = -sound.soft.speed; -} - -static int PMacSetFormat(int format) -{ - int size; - - switch (format) { - case AFMT_QUERY: - return sound.soft.format; - case AFMT_MU_LAW: - case AFMT_A_LAW: - case AFMT_U8: - case AFMT_S8: - size = 8; - break; - case AFMT_S16_BE: - case AFMT_U16_BE: - case AFMT_S16_LE: - case AFMT_U16_LE: - size = 16; - break; - default: /* :-) */ - printk(KERN_ERR "dmasound: unknown format 0x%x, using AFMT_U8\n", - format); - size = 8; - format = AFMT_U8; - } - - sound.soft.format = format; - sound.soft.size = size; - if (sound.minDev == SND_DEV_DSP) { - sound.dsp.format = format; - sound.dsp.size = size; - } - - PMacInit(); - - return format; -} - -#define AWACS_VOLUME_TO_MASK(x) (15 - ((((x) - 1) * 15) / 99)) -#define AWACS_MASK_TO_VOLUME(y) (100 - ((y) * 99 / 15)) - -static int awacs_get_volume(int reg, int lshift) -{ - int volume; - - volume = AWACS_MASK_TO_VOLUME((reg >> lshift) & 0xf); - volume |= AWACS_MASK_TO_VOLUME(reg & 0xf) << 8; - return volume; -} - -static int awacs_volume_setter(int volume, int n, int mute, int lshift) -{ - int r1, rn; - - if (mute && volume == 0) { - r1 = awacs_reg[1] | mute; - } else { - r1 = awacs_reg[1] & ~mute; - rn = awacs_reg[n] & ~(0xf | (0xf << lshift)); - rn |= ((AWACS_VOLUME_TO_MASK(volume & 0xff) & 0xf) << lshift); - rn |= AWACS_VOLUME_TO_MASK((volume >> 8) & 0xff) & 0xf; - awacs_reg[n] = rn; - awacs_write((n << 12) | rn); - volume = awacs_get_volume(rn, lshift); - } - if (r1 != awacs_reg[1]) { - awacs_reg[1] = r1; - awacs_write(r1 | MASK_ADDR1); - } - return volume; -} - -static int PMacSetVolume(int volume) -{ - return awacs_volume_setter(volume, 2, MASK_AMUTE, 6); -} - -static void PMacPlay(void) -{ - volatile struct dbdma_cmd *cp; - int i, count; - unsigned long flags; - - save_flags(flags); cli(); - if (awacs_beep_state) { - /* sound takes precedence over beeps */ - out_le32(&awacs_txdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16); - out_le32(&awacs->control, - (in_le32(&awacs->control) & ~0x1f00) - | (awacs_rate_index << 8)); - out_le32(&awacs->byteswap, sound.hard.format != AFMT_S16_BE); - out_le32(&awacs_txdma->cmdptr, virt_to_bus(&(awacs_tx_cmds[(sq.front+sq.active) % sq.max_count]))); - - beep_playing = 0; - awacs_beep_state = 0; - } - i = sq.front + sq.active; - if (i >= sq.max_count) - i -= sq.max_count; - while (sq.active < 2 && sq.active < sq.count) { - count = (sq.count == sq.active + 1)?sq.rear_size:sq.block_size; - if (count < sq.block_size && !sq.syncing) - /* last block not yet filled, and we're not syncing. */ - break; - cp = &awacs_tx_cmds[i]; - st_le16(&cp->req_count, count); - st_le16(&cp->xfer_status, 0); - if (++i >= sq.max_count) - i = 0; - out_le16(&awacs_tx_cmds[i].command, DBDMA_STOP); - out_le16(&cp->command, OUTPUT_MORE + INTR_ALWAYS); - if (sq.active == 0) - out_le32(&awacs_txdma->cmdptr, virt_to_bus(cp)); - out_le32(&awacs_txdma->control, ((RUN|WAKE) << 16) + (RUN|WAKE)); - ++sq.active; - } - restore_flags(flags); -} - - -static void PMacRecord(void) -{ - unsigned long flags; - - if (read_sq.active) - return; - - save_flags(flags); cli(); - - /* This is all we have to do......Just start it up. - */ - out_le32(&awacs_rxdma->control, ((RUN|WAKE) << 16) + (RUN|WAKE)); - read_sq.active = 1; - - restore_flags(flags); -} - - -static void -pmac_awacs_tx_intr(int irq, void *devid, struct pt_regs *regs) -{ - int i = sq.front; - int stat; - volatile struct dbdma_cmd *cp; - - while (sq.active > 0) { - cp = &awacs_tx_cmds[i]; - stat = ld_le16(&cp->xfer_status); - if ((stat & ACTIVE) == 0) - break; /* this frame is still going */ - --sq.count; - --sq.active; - if (++i >= sq.max_count) - i = 0; - } - if (i != sq.front) - WAKE_UP(sq.action_queue); - sq.front = i; - - PMacPlay(); - - if (!sq.active) - WAKE_UP(sq.sync_queue); -} - - -static void -pmac_awacs_rx_intr(int irq, void *devid, struct pt_regs *regs) -{ - - /* For some reason on my PowerBook G3, I get one interrupt - * when the interrupt vector is installed (like something is - * pending). This happens before the dbdma is initialize by - * us, so I just check the command pointer and if it is zero, - * just blow it off. - */ - if (in_le32(&awacs_rxdma->cmdptr) == 0) - return; - - /* We also want to blow 'em off when shutting down. - */ - if (read_sq.active == 0) - return; - - /* Check multiple buffers in case we were held off from - * interrupt processing for a long time. Geeze, I really hope - * this doesn't happen. - */ - while (awacs_rx_cmds[read_sq.rear].xfer_status) { - - /* Clear status and move on to next buffer. - */ - awacs_rx_cmds[read_sq.rear].xfer_status = 0; - read_sq.rear++; - - /* Wrap the buffer ring. - */ - if (read_sq.rear >= read_sq.max_active) - read_sq.rear = 0; - - /* If we have caught up to the front buffer, bump it. - * This will cause weird (but not fatal) results if the - * read loop is currently using this buffer. The user is - * behind in this case anyway, so weird things are going - * to happen. - */ - if (read_sq.rear == read_sq.front) { - read_sq.front++; - if (read_sq.front >= read_sq.max_active) - read_sq.front = 0; - } - } - - WAKE_UP(read_sq.action_queue); -} - - -static void -pmac_awacs_intr(int irq, void *devid, struct pt_regs *regs) -{ - int ctrl = in_le32(&awacs->control); - - if (ctrl & MASK_PORTCHG) { - /* do something when headphone is plugged/unplugged? */ - } - if (ctrl & MASK_CNTLERR) { - int err = (in_le32(&awacs->codec_stat) & MASK_ERRCODE) >> 16; - if (err != 0 && awacs_revision < AWACS_BURGUNDY) - printk(KERN_ERR "AWACS: error %x\n", err); - } - /* Writing 1s to the CNTLERR and PORTCHG bits clears them... */ - out_le32(&awacs->control, ctrl); -} - -static void -awacs_write(int val) -{ - if (awacs_revision >= AWACS_BURGUNDY) - return; - while (in_le32(&awacs->codec_ctrl) & MASK_NEWECMD) - ; /* XXX should have timeout */ - out_le32(&awacs->codec_ctrl, val | (awacs_subframe << 22)); -} - -static void awacs_nosound(unsigned long xx) -{ - unsigned long flags; - - save_flags(flags); cli(); - if (beep_playing) { - st_le16(&beep_dbdma_cmd->command, DBDMA_STOP); - out_le32(&awacs_txdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16); - out_le32(&awacs->control, - (in_le32(&awacs->control) & ~0x1f00) - | (awacs_rate_index << 8)); - out_le32(&awacs->byteswap, sound.hard.format != AFMT_S16_BE); - beep_playing = 0; - } - restore_flags(flags); -} - -static struct timer_list beep_timer = { - NULL, NULL, 0, 0, awacs_nosound -}; - -static void awacs_mksound(unsigned int hz, unsigned int ticks) -{ - unsigned long flags; - int beep_speed = 0; - int srate; - int period, ncycles, nsamples; - int i, j, f; - short *p; - static int beep_hz_cache; - static int beep_nsamples_cache; - static int beep_volume_cache; - - for (i = 0; i < 8 && awacs_freqs[i] >= BEEP_SRATE; ++i) - if (awacs_freqs_ok[i]) - beep_speed = i; - srate = awacs_freqs[beep_speed]; - - if (hz <= srate / BEEP_BUFLEN || hz > srate / 2) { -#if 1 - /* this is a hack for broken X server code */ - hz = 750; - ticks = 12; -#else - /* cancel beep currently playing */ - awacs_nosound(0); - return; -#endif - } - save_flags(flags); cli(); - del_timer(&beep_timer); - if (ticks) { - beep_timer.expires = jiffies + ticks; - add_timer(&beep_timer); - } - if (beep_playing || sq.active || beep_buf == NULL) { - restore_flags(flags); - return; /* too hard, sorry :-( */ - } - beep_playing = 1; - st_le16(&beep_dbdma_cmd->command, OUTPUT_MORE + BR_ALWAYS); - restore_flags(flags); - - if (hz == beep_hz_cache && beep_volume == beep_volume_cache) { - nsamples = beep_nsamples_cache; - } else { - period = srate * 256 / hz; /* fixed point */ - ncycles = BEEP_BUFLEN * 256 / period; - nsamples = (period * ncycles) >> 8; - f = ncycles * 65536 / nsamples; - j = 0; - p = beep_buf; - for (i = 0; i < nsamples; ++i, p += 2) { - p[0] = p[1] = beep_wform[j >> 8] * beep_volume; - j = (j + f) & 0xffff; - } - beep_hz_cache = hz; - beep_volume_cache = beep_volume; - beep_nsamples_cache = nsamples; - } - - st_le16(&beep_dbdma_cmd->req_count, nsamples*4); - st_le16(&beep_dbdma_cmd->xfer_status, 0); - st_le32(&beep_dbdma_cmd->cmd_dep, virt_to_bus(beep_dbdma_cmd)); - st_le32(&beep_dbdma_cmd->phy_addr, virt_to_bus(beep_buf)); - awacs_beep_state = 1; - - save_flags(flags); cli(); - if (beep_playing) { /* i.e. haven't been terminated already */ - out_le32(&awacs_txdma->control, (RUN|WAKE|FLUSH|PAUSE) << 16); - out_le32(&awacs->control, - (in_le32(&awacs->control) & ~0x1f00) - | (beep_speed << 8)); - out_le32(&awacs->byteswap, 0); - out_le32(&awacs_txdma->cmdptr, virt_to_bus(beep_dbdma_cmd)); - out_le32(&awacs_txdma->control, RUN | (RUN << 16)); - } - restore_flags(flags); -} - -#ifdef CONFIG_PMAC_PBOOK -/* - * Save state when going to sleep, restore it afterwards. - */ -static int awacs_sleep_notify(struct pmu_sleep_notifier *self, int when) -{ - switch (when) { - case PBOOK_SLEEP_NOW: - /* XXX we should stop any dma in progress when going to sleep - and restart it when we wake. */ - PMacSilence(); - disable_irq(awacs_irq); - disable_irq(awacs_tx_irq); - if (is_pbook_G3) { - feature_clear(awacs_node, FEATURE_Sound_CLK_enable); - feature_clear(awacs_node, FEATURE_Sound_power); - } - break; - case PBOOK_WAKE: - /* There is still a problem on wake. Sound seems to work fine - if I launch mpg123 and resumes fine if mpg123 was playing, - but the console beep is dead until I do something with the - mixer. Probably yet another timing issue */ - if (!feature_test(awacs_node, FEATURE_Sound_CLK_enable) - || !feature_test(awacs_node, FEATURE_Sound_power)) { - /* these aren't present on the 3400 AFAIK -- paulus */ - feature_set(awacs_node, FEATURE_Sound_CLK_enable); - feature_set(awacs_node, FEATURE_Sound_power); - mdelay(1000); - } - out_le32(&awacs->control, MASK_IEPC - | (awacs_rate_index << 8) | 0x11 - | (awacs_revision < AWACS_BURGUNDY? MASK_IEE: 0)); - awacs_write(awacs_reg[0] | MASK_ADDR0); - awacs_write(awacs_reg[1] | MASK_ADDR1); - awacs_write(awacs_reg[2] | MASK_ADDR2); - awacs_write(awacs_reg[4] | MASK_ADDR4); - out_le32(&awacs->byteswap, sound.hard.format != AFMT_S16_BE); - enable_irq(awacs_irq); - enable_irq(awacs_tx_irq); - if (awacs_revision == 3) { - mdelay(100); - awacs_write(0x6000); - mdelay(2); - awacs_write(awacs_reg[1] | MASK_ADDR1); - } - /* enable CD sound input */ - if (macio_base && is_pbook_G3) { - out_8(macio_base + 0x37, 3); - } else if (is_pbook_3400) { - feature_set(awacs_node, FEATURE_IOBUS_enable); - udelay(10); - in_8(latch_base + 0x190); - } - /* Resume pending sounds. */ - PMacPlay(); - } - return PBOOK_SLEEP_OK; -} -#endif /* CONFIG_PMAC_PBOOK */ - - -/* All the burgundy functions: */ - -/* Waits for busy flag to clear */ -inline static void -awacs_burgundy_busy_wait(void) -{ - while (in_le32(&awacs->codec_ctrl) & MASK_NEWECMD) - ; -} - -inline static void -awacs_burgundy_extend_wait(void) -{ - while (!(in_le32(&awacs->codec_stat) & MASK_EXTEND)) - ; - while (in_le32(&awacs->codec_stat) & MASK_EXTEND) - ; -} - -static void -awacs_burgundy_wcw(unsigned addr, unsigned val) -{ - out_le32(&awacs->codec_ctrl, addr + 0x200c00 + (val & 0xff)); - awacs_burgundy_busy_wait(); - out_le32(&awacs->codec_ctrl, addr + 0x200d00 +((val>>8) & 0xff)); - awacs_burgundy_busy_wait(); - out_le32(&awacs->codec_ctrl, addr + 0x200e00 +((val>>16) & 0xff)); - awacs_burgundy_busy_wait(); - out_le32(&awacs->codec_ctrl, addr + 0x200f00 +((val>>24) & 0xff)); - awacs_burgundy_busy_wait(); -} - -static unsigned -awacs_burgundy_rcw(unsigned addr) -{ - unsigned val = 0; - unsigned long flags; - - /* should have timeouts here */ - save_flags(flags); cli(); - - out_le32(&awacs->codec_ctrl, addr + 0x100000); - awacs_burgundy_busy_wait(); - awacs_burgundy_extend_wait(); - val += (in_le32(&awacs->codec_stat) >> 4) & 0xff; - - out_le32(&awacs->codec_ctrl, addr + 0x100100); - awacs_burgundy_busy_wait(); - awacs_burgundy_extend_wait(); - val += ((in_le32(&awacs->codec_stat)>>4) & 0xff) <<8; - - out_le32(&awacs->codec_ctrl, addr + 0x100200); - awacs_burgundy_busy_wait(); - awacs_burgundy_extend_wait(); - val += ((in_le32(&awacs->codec_stat)>>4) & 0xff) <<16; - - out_le32(&awacs->codec_ctrl, addr + 0x100300); - awacs_burgundy_busy_wait(); - awacs_burgundy_extend_wait(); - val += ((in_le32(&awacs->codec_stat)>>4) & 0xff) <<24; - - restore_flags(flags); - - return val; -} - - -static void -awacs_burgundy_wcb(unsigned addr, unsigned val) -{ - out_le32(&awacs->codec_ctrl, addr + 0x300000 + (val & 0xff)); - awacs_burgundy_busy_wait(); -} - -static unsigned -awacs_burgundy_rcb(unsigned addr) -{ - unsigned val = 0; - unsigned long flags; - - /* should have timeouts here */ - save_flags(flags); cli(); - - out_le32(&awacs->codec_ctrl, addr + 0x100000); - awacs_burgundy_busy_wait(); - awacs_burgundy_extend_wait(); - val += (in_le32(&awacs->codec_stat) >> 4) & 0xff; - - restore_flags(flags); - - return val; -} - -static int -awacs_burgundy_check(void) -{ - /* Checks to see the chip is alive and kicking */ - int error = in_le32(&awacs->codec_ctrl) & MASK_ERRCODE; - - return error == 0xf0000; -} - -static int -awacs_burgundy_init(void) -{ - if (awacs_burgundy_check()) { - printk(KERN_WARNING "AWACS: disabled by MacOS :-(\n"); - return 1; - } - - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_OUTPUTENABLES, - DEF_BURGUNDY_OUTPUTENABLES); - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES, - DEF_BURGUNDY_MORE_OUTPUTENABLES); - awacs_burgundy_wcw(MASK_ADDR_BURGUNDY_OUTPUTSELECTS, - DEF_BURGUNDY_OUTPUTSELECTS); - - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_INPSEL21, - DEF_BURGUNDY_INPSEL21); - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_INPSEL3, - DEF_BURGUNDY_INPSEL3); - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_GAINCD, - DEF_BURGUNDY_GAINCD); - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_GAINLINE, - DEF_BURGUNDY_GAINLINE); - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_GAINMIC, - DEF_BURGUNDY_GAINMIC); - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_GAINMODEM, - DEF_BURGUNDY_GAINMODEM); - - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_ATTENSPEAKER, - DEF_BURGUNDY_ATTENSPEAKER); - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_ATTENLINEOUT, - DEF_BURGUNDY_ATTENLINEOUT); - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_ATTENHP, - DEF_BURGUNDY_ATTENHP); - - awacs_burgundy_wcw(MASK_ADDR_BURGUNDY_MASTER_VOLUME, - DEF_BURGUNDY_MASTER_VOLUME); - awacs_burgundy_wcw(MASK_ADDR_BURGUNDY_VOLCD, - DEF_BURGUNDY_VOLCD); - awacs_burgundy_wcw(MASK_ADDR_BURGUNDY_VOLLINE, - DEF_BURGUNDY_VOLLINE); - awacs_burgundy_wcw(MASK_ADDR_BURGUNDY_VOLMIC, - DEF_BURGUNDY_VOLMIC); - return 0; -} - -static void -awacs_burgundy_write_volume(unsigned address, int volume) -{ - int hardvolume,lvolume,rvolume; - - lvolume = (volume & 0xff) ? (volume & 0xff) + 155 : 0; - rvolume = ((volume >>8)&0xff) ? ((volume >> 8)&0xff ) + 155 : 0; - - hardvolume = lvolume + (rvolume << 16); - - awacs_burgundy_wcw(address, hardvolume); -} - -static int -awacs_burgundy_read_volume(unsigned address) -{ - int softvolume,wvolume; - - wvolume = awacs_burgundy_rcw(address); - - softvolume = (wvolume & 0xff) - 155; - softvolume += (((wvolume >> 16) & 0xff) - 155)<<8; - - return softvolume > 0 ? softvolume : 0; -} - - - - -static int -awacs_burgundy_read_mvolume(unsigned address) -{ - int lvolume,rvolume,wvolume; - - wvolume = awacs_burgundy_rcw(address); - - wvolume &= 0xffff; - - rvolume = (wvolume & 0xff) - 155; - lvolume = ((wvolume & 0xff00)>>8) - 155; - - return lvolume + (rvolume << 8); -} - - -static void -awacs_burgundy_write_mvolume(unsigned address, int volume) -{ - int lvolume,rvolume,hardvolume; - - lvolume = (volume &0xff) ? (volume & 0xff) + 155 :0; - rvolume = ((volume >>8) & 0xff) ? (volume >> 8) + 155 :0; - - hardvolume = lvolume + (rvolume << 8); - hardvolume += (hardvolume << 16); - - awacs_burgundy_wcw(address, hardvolume); -} - -/* End burgundy functions */ - - - - - -/* Turn on sound output, needed on G3 desktop powermacs */ -static void -awacs_enable_amp(int spkr_vol) -{ - struct adb_request req; - - awacs_spkr_vol = spkr_vol; - if (sys_ctrler != SYS_CTRLER_CUDA) - return; - - /* turn on headphones */ - cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC, - 0x8a, 4, 0); - while (!req.complete) cuda_poll(); - cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC, - 0x8a, 6, 0); - while (!req.complete) cuda_poll(); - - /* turn on speaker */ - cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC, - 0x8a, 3, (100 - (spkr_vol & 0xff)) * 32 / 100); - while (!req.complete) cuda_poll(); - cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC, - 0x8a, 5, (100 - ((spkr_vol >> 8) & 0xff)) * 32 / 100); - while (!req.complete) cuda_poll(); - - cuda_request(&req, NULL, 5, CUDA_PACKET, - CUDA_GET_SET_IIC, 0x8a, 1, 0x29); - while (!req.complete) cuda_poll(); -} - -#endif /* CONFIG_PPC */ - -/*** Machine definitions *****************************************************/ - - -#ifdef CONFIG_ATARI -static MACHINE machTT = { - DMASND_TT, AtaAlloc, AtaFree, AtaIrqInit, -#ifdef MODULE - AtaIrqCleanUp, -#endif /* MODULE */ - TTInit, TTSilence, TTSetFormat, TTSetVolume, - AtaSetBass, AtaSetTreble, TTSetGain, - AtaPlay -}; - -static MACHINE machFalcon = { - DMASND_FALCON, AtaAlloc, AtaFree, AtaIrqInit, -#ifdef MODULE - AtaIrqCleanUp, -#endif /* MODULE */ - FalconInit, FalconSilence, FalconSetFormat, FalconSetVolume, - AtaSetBass, AtaSetTreble, NULL, - AtaPlay -}; -#endif /* CONFIG_ATARI */ - -#ifdef CONFIG_AMIGA -static MACHINE machAmiga = { - DMASND_AMIGA, AmiAlloc, AmiFree, AmiIrqInit, -#ifdef MODULE - AmiIrqCleanUp, -#endif /* MODULE */ - AmiInit, AmiSilence, AmiSetFormat, AmiSetVolume, - NULL, AmiSetTreble, NULL, - AmiPlay -}; -#endif /* CONFIG_AMIGA */ - -#ifdef CONFIG_PPC -static MACHINE machPMac = { - DMASND_AWACS, PMacAlloc, PMacFree, PMacIrqInit, -#ifdef MODULE - PMacIrqCleanup, -#endif /* MODULE */ - PMacInit, PMacSilence, PMacSetFormat, PMacSetVolume, - NULL, NULL, NULL, /* bass, treble, gain */ - PMacPlay -}; -#endif /* CONFIG_AMIGA */ - - -/*** Mid level stuff *********************************************************/ - - -static void sound_silence(void) -{ - /* update hardware settings one more */ - (*sound.mach.init)(); - - (*sound.mach.silence)(); -} - - -static void sound_init(void) -{ - (*sound.mach.init)(); -} - - -static int sound_set_format(int format) -{ - return(*sound.mach.setFormat)(format); -} - - -static int sound_set_speed(int speed) -{ - if (speed < 0) - return(sound.soft.speed); - - sound.soft.speed = speed; - (*sound.mach.init)(); - if (sound.minDev == SND_DEV_DSP) - sound.dsp.speed = sound.soft.speed; - - return(sound.soft.speed); -} - - -static int sound_set_stereo(int stereo) -{ - if (stereo < 0) - return(sound.soft.stereo); - - stereo = !!stereo; /* should be 0 or 1 now */ - - sound.soft.stereo = stereo; - if (sound.minDev == SND_DEV_DSP) - sound.dsp.stereo = stereo; - (*sound.mach.init)(); - - return(stereo); -} - - -static int sound_set_volume(int volume) -{ - return(*sound.mach.setVolume)(volume); -} - - -#ifdef CONFIG_ATARI -static int sound_set_bass(int bass) -{ - return(sound.mach.setBass ? (*sound.mach.setBass)(bass) : 50); -} - -static int sound_set_gain(int gain) -{ - return sound.mach.setGain ? sound.mach.setGain(gain) : 100; -} -#endif /* CONFIG_ATARI */ - -#if defined(CONFIG_ATARI) || defined(CONFIG_AMIGA) -static int sound_set_treble(int treble) -{ - return(sound.mach.setTreble ? (*sound.mach.setTreble)(treble) : 50); -} -#endif /* CONFIG_ATARI || CONFIG_AMIGA */ - - -static ssize_t sound_copy_translate(const u_char *userPtr, - size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t (*ct_func)(const u_char *, size_t, u_char *, ssize_t *, ssize_t) = NULL; - - switch (sound.soft.format) { - case AFMT_MU_LAW: - ct_func = sound.trans->ct_ulaw; - break; - case AFMT_A_LAW: - ct_func = sound.trans->ct_alaw; - break; - case AFMT_S8: - ct_func = sound.trans->ct_s8; - break; - case AFMT_U8: - ct_func = sound.trans->ct_u8; - break; - case AFMT_S16_BE: - ct_func = sound.trans->ct_s16be; - break; - case AFMT_U16_BE: - ct_func = sound.trans->ct_u16be; - break; - case AFMT_S16_LE: - ct_func = sound.trans->ct_s16le; - break; - case AFMT_U16_LE: - ct_func = sound.trans->ct_u16le; - break; - } - if (ct_func) - return ct_func(userPtr, userCount, frame, frameUsed, frameLeft); - else - return 0; -} - -#ifdef CONFIG_PPC -static ssize_t sound_copy_translate_read(const u_char *userPtr, - size_t userCount, - u_char frame[], ssize_t *frameUsed, - ssize_t frameLeft) -{ - ssize_t (*ct_func)(const u_char *, size_t, u_char *, ssize_t *, ssize_t) = NULL; - - switch (sound.soft.format) { - case AFMT_MU_LAW: - ct_func = sound.read_trans->ct_ulaw; - break; - case AFMT_A_LAW: - ct_func = sound.read_trans->ct_alaw; - break; - case AFMT_S8: - ct_func = sound.read_trans->ct_s8; - break; - case AFMT_U8: - ct_func = sound.read_trans->ct_u8; - break; - case AFMT_S16_BE: - ct_func = sound.read_trans->ct_s16be; - break; - case AFMT_U16_BE: - ct_func = sound.read_trans->ct_u16be; - break; - case AFMT_S16_LE: - ct_func = sound.read_trans->ct_s16le; - break; - case AFMT_U16_LE: - ct_func = sound.read_trans->ct_u16le; - break; - } - if (ct_func) - return ct_func(userPtr, userCount, frame, frameUsed, frameLeft); - else - return 0; -} -#endif - - -/* - * /dev/mixer abstraction - */ - - -#define RECLEVEL_VOXWARE_TO_GAIN(v) \ - ((v) < 0 ? 0 : (v) > 100 ? 15 : (v) * 3 / 20) -#define RECLEVEL_GAIN_TO_VOXWARE(v) (((v) * 20 + 2) / 3) - - -static int mixer_open(struct inode *inode, struct file *file) -{ - MOD_INC_USE_COUNT; - mixer.busy = 1; - return 0; -} - - -static int mixer_release(struct inode *inode, struct file *file) -{ - mixer.busy = 0; - MOD_DEC_USE_COUNT; - return 0; -} - - -static int mixer_ioctl(struct inode *inode, struct file *file, u_int cmd, - u_long arg) -{ - int data; - if (_SIOC_DIR(cmd) & _SIOC_WRITE) - mixer.modify_counter++; - if (cmd == OSS_GETVERSION) - return IOCTL_OUT(arg, SOUND_VERSION); - switch (sound.mach.type) { -#ifdef CONFIG_ATARI - case DMASND_FALCON: - switch (cmd) { - case SOUND_MIXER_INFO: { - mixer_info info; - strncpy(info.id, "FALCON", sizeof(info.id)); - strncpy(info.name, "FALCON", sizeof(info.name)); - info.name[sizeof(info.name)-1] = 0; - info.modify_counter = mixer.modify_counter; - copy_to_user_ret((int *)arg, &info, sizeof(info), -EFAULT); - return 0; - } - case SOUND_MIXER_READ_DEVMASK: - return IOCTL_OUT(arg, SOUND_MASK_VOLUME | SOUND_MASK_MIC | SOUND_MASK_SPEAKER); - case SOUND_MIXER_READ_RECMASK: - return IOCTL_OUT(arg, SOUND_MASK_MIC); - case SOUND_MIXER_READ_STEREODEVS: - return IOCTL_OUT(arg, SOUND_MASK_VOLUME | SOUND_MASK_MIC); - case SOUND_MIXER_READ_CAPS: - return IOCTL_OUT(arg, SOUND_CAP_EXCL_INPUT); - case SOUND_MIXER_READ_VOLUME: - return IOCTL_OUT(arg, - VOLUME_ATT_TO_VOXWARE(sound.volume_left) | - VOLUME_ATT_TO_VOXWARE(sound.volume_right) << 8); - case SOUND_MIXER_WRITE_MIC: - IOCTL_IN(arg, data); - tt_dmasnd.input_gain = - RECLEVEL_VOXWARE_TO_GAIN(data & 0xff) << 4 | - RECLEVEL_VOXWARE_TO_GAIN(data >> 8 & 0xff); - /* fall thru, return set value */ - case SOUND_MIXER_READ_MIC: - return IOCTL_OUT(arg, - RECLEVEL_GAIN_TO_VOXWARE(tt_dmasnd.input_gain >> 4 & 0xf) | - RECLEVEL_GAIN_TO_VOXWARE(tt_dmasnd.input_gain & 0xf) << 8); - case SOUND_MIXER_READ_SPEAKER: - { - int porta; - cli(); - sound_ym.rd_data_reg_sel = 14; - porta = sound_ym.rd_data_reg_sel; - sti(); - return IOCTL_OUT(arg, porta & 0x40 ? 0 : 100); - } - case SOUND_MIXER_WRITE_VOLUME: - IOCTL_IN(arg, data); - return IOCTL_OUT(arg, sound_set_volume(data)); - case SOUND_MIXER_WRITE_SPEAKER: - { - int porta; - IOCTL_IN(arg, data); - cli(); - sound_ym.rd_data_reg_sel = 14; - porta = (sound_ym.rd_data_reg_sel & ~0x40) | - (data < 50 ? 0x40 : 0); - sound_ym.wd_data = porta; - sti(); - return IOCTL_OUT(arg, porta & 0x40 ? 0 : 100); - } - } - break; - - case DMASND_TT: - switch (cmd) { - case SOUND_MIXER_INFO: { - mixer_info info; - strncpy(info.id, "TT", sizeof(info.id)); - strncpy(info.name, "TT", sizeof(info.name)); - info.name[sizeof(info.name)-1] = 0; - info.modify_counter = mixer.modify_counter; - copy_to_user_ret((int *)arg, &info, sizeof(info), -EFAULT); - return 0; - } - case SOUND_MIXER_READ_DEVMASK: - return IOCTL_OUT(arg, - SOUND_MASK_VOLUME | SOUND_MASK_TREBLE | SOUND_MASK_BASS | - (MACH_IS_TT ? SOUND_MASK_SPEAKER : 0)); - case SOUND_MIXER_READ_RECMASK: - return IOCTL_OUT(arg, 0); - case SOUND_MIXER_READ_STEREODEVS: - return IOCTL_OUT(arg, SOUND_MASK_VOLUME); - case SOUND_MIXER_READ_VOLUME: - return IOCTL_OUT(arg, - VOLUME_DB_TO_VOXWARE(sound.volume_left) | - (VOLUME_DB_TO_VOXWARE(sound.volume_right) << 8)); - case SOUND_MIXER_READ_BASS: - return IOCTL_OUT(arg, TONE_DB_TO_VOXWARE(sound.bass)); - case SOUND_MIXER_READ_TREBLE: - return IOCTL_OUT(arg, TONE_DB_TO_VOXWARE(sound.treble)); - case SOUND_MIXER_READ_OGAIN: - return IOCTL_OUT(arg, GAIN_DB_TO_VOXWARE(sound.gain)); - case SOUND_MIXER_READ_SPEAKER: - { - int porta; - if (MACH_IS_TT) { - cli(); - sound_ym.rd_data_reg_sel = 14; - porta = sound_ym.rd_data_reg_sel; - sti(); - return IOCTL_OUT(arg, porta & 0x40 ? 0 : 100); - } - } - break; - case SOUND_MIXER_WRITE_VOLUME: - IOCTL_IN(arg, data); - return IOCTL_OUT(arg, sound_set_volume(data)); - case SOUND_MIXER_WRITE_BASS: - IOCTL_IN(arg, data); - return IOCTL_OUT(arg, sound_set_bass(data)); - case SOUND_MIXER_WRITE_TREBLE: - IOCTL_IN(arg, data); - return IOCTL_OUT(arg, sound_set_treble(data)); - case SOUND_MIXER_WRITE_OGAIN: - IOCTL_IN(arg, data); - return IOCTL_OUT(arg, sound_set_gain(data)); - case SOUND_MIXER_WRITE_SPEAKER: - if (MACH_IS_TT) { - int porta; - IOCTL_IN(arg, data); - cli(); - sound_ym.rd_data_reg_sel = 14; - porta = (sound_ym.rd_data_reg_sel & ~0x40) | - (data < 50 ? 0x40 : 0); - sound_ym.wd_data = porta; - sti(); - return IOCTL_OUT(arg, porta & 0x40 ? 0 : 100); - } - } - break; -#endif /* CONFIG_ATARI */ - -#ifdef CONFIG_AMIGA - case DMASND_AMIGA: - switch (cmd) { - case SOUND_MIXER_INFO: { - mixer_info info; - strncpy(info.id, "AMIGA", sizeof(info.id)); - strncpy(info.name, "AMIGA", sizeof(info.name)); - info.name[sizeof(info.name)-1] = 0; - info.modify_counter = mixer.modify_counter; - copy_to_user_ret((int *)arg, &info, sizeof(info), -EFAULT); - return 0; - } - case SOUND_MIXER_READ_DEVMASK: - return IOCTL_OUT(arg, SOUND_MASK_VOLUME | SOUND_MASK_TREBLE); - case SOUND_MIXER_READ_RECMASK: - return IOCTL_OUT(arg, 0); - case SOUND_MIXER_READ_STEREODEVS: - return IOCTL_OUT(arg, SOUND_MASK_VOLUME); - case SOUND_MIXER_READ_VOLUME: - return IOCTL_OUT(arg, - VOLUME_AMI_TO_VOXWARE(sound.volume_left) | - VOLUME_AMI_TO_VOXWARE(sound.volume_right) << 8); - case SOUND_MIXER_WRITE_VOLUME: - IOCTL_IN(arg, data); - return IOCTL_OUT(arg, sound_set_volume(data)); - case SOUND_MIXER_READ_TREBLE: - return IOCTL_OUT(arg, sound.treble); - case SOUND_MIXER_WRITE_TREBLE: - IOCTL_IN(arg, data); - return IOCTL_OUT(arg, sound_set_treble(data)); - } - break; -#endif /* CONFIG_AMIGA */ - -#ifdef CONFIG_PPC - case DMASND_AWACS: - /* Different IOCTLS for burgundy*/ - if (awacs_revision < AWACS_BURGUNDY) { - switch (cmd) { - case SOUND_MIXER_INFO: { - mixer_info info; - strncpy(info.id, "AWACS", sizeof(info.id)); - strncpy(info.name, "AWACS", sizeof(info.name)); - info.name[sizeof(info.name)-1] = 0; - info.modify_counter = mixer.modify_counter; - copy_to_user_ret((int *)arg, &info, - sizeof(info), -EFAULT); - return 0; - } - case SOUND_MIXER_READ_DEVMASK: - data = SOUND_MASK_VOLUME | SOUND_MASK_SPEAKER - | SOUND_MASK_LINE | SOUND_MASK_MIC - | SOUND_MASK_CD | SOUND_MASK_RECLEV - | SOUND_MASK_ALTPCM - | SOUND_MASK_MONITOR; - return IOCTL_OUT(arg, data); - case SOUND_MIXER_READ_RECMASK: - data = SOUND_MASK_LINE | SOUND_MASK_MIC - | SOUND_MASK_CD; - return IOCTL_OUT(arg, data); - case SOUND_MIXER_READ_RECSRC: - data = 0; - if (awacs_reg[0] & MASK_MUX_AUDIN) - data |= SOUND_MASK_LINE; - if (awacs_reg[0] & MASK_MUX_MIC) - data |= SOUND_MASK_MIC; - if (awacs_reg[0] & MASK_MUX_CD) - data |= SOUND_MASK_CD; - if (awacs_reg[1] & MASK_LOOPTHRU) - data |= SOUND_MASK_MONITOR; - return IOCTL_OUT(arg, data); - case SOUND_MIXER_WRITE_RECSRC: - IOCTL_IN(arg, data); - data &= (SOUND_MASK_LINE - | SOUND_MASK_MIC | SOUND_MASK_CD - | SOUND_MASK_MONITOR); - awacs_reg[0] &= ~(MASK_MUX_CD | MASK_MUX_MIC - | MASK_MUX_AUDIN); - awacs_reg[1] &= ~MASK_LOOPTHRU; - if (data & SOUND_MASK_LINE) - awacs_reg[0] |= MASK_MUX_AUDIN; - if (data & SOUND_MASK_MIC) - awacs_reg[0] |= MASK_MUX_MIC; - if (data & SOUND_MASK_CD) - awacs_reg[0] |= MASK_MUX_CD; - if (data & SOUND_MASK_MONITOR) - awacs_reg[1] |= MASK_LOOPTHRU; - awacs_write(awacs_reg[0] | MASK_ADDR0); - awacs_write(awacs_reg[1] | MASK_ADDR1); - return IOCTL_OUT(arg, data); - case SOUND_MIXER_READ_STEREODEVS: - data = SOUND_MASK_VOLUME | SOUND_MASK_SPEAKER - | SOUND_MASK_RECLEV; - return IOCTL_OUT(arg, data); - case SOUND_MIXER_READ_CAPS: - return IOCTL_OUT(arg, 0); - case SOUND_MIXER_READ_VOLUME: - data = (awacs_reg[1] & MASK_AMUTE)? 0: - awacs_get_volume(awacs_reg[2], 6); - return IOCTL_OUT(arg, data); - case SOUND_MIXER_WRITE_VOLUME: - IOCTL_IN(arg, data); - return IOCTL_OUT(arg, sound_set_volume(data)); - case SOUND_MIXER_READ_SPEAKER: - if (awacs_revision == 3 - && sys_ctrler == SYS_CTRLER_CUDA) - data = awacs_spkr_vol; - else - data = (awacs_reg[1] & MASK_CMUTE)? 0: - awacs_get_volume(awacs_reg[4], 6); - return IOCTL_OUT(arg, data); - case SOUND_MIXER_WRITE_SPEAKER: - IOCTL_IN(arg, data); - if (awacs_revision == 3 - && sys_ctrler == SYS_CTRLER_CUDA) - awacs_enable_amp(data); - else - data = awacs_volume_setter(data, 4, MASK_CMUTE, 6); - return IOCTL_OUT(arg, data); - case SOUND_MIXER_WRITE_ALTPCM: /* really bell volume */ - IOCTL_IN(arg, data); - beep_volume = data & 0xff; - /* fall through */ - case SOUND_MIXER_READ_ALTPCM: - return IOCTL_OUT(arg, beep_volume); - case SOUND_MIXER_WRITE_LINE: - IOCTL_IN(arg, data); - awacs_reg[0] &= ~MASK_MUX_AUDIN; - if ((data & 0xff) >= 50) - awacs_reg[0] |= MASK_MUX_AUDIN; - awacs_write(MASK_ADDR0 | awacs_reg[0]); - /* fall through */ - case SOUND_MIXER_READ_LINE: - data = (awacs_reg[0] & MASK_MUX_AUDIN)? 100: 0; - return IOCTL_OUT(arg, data); - case SOUND_MIXER_WRITE_MIC: - IOCTL_IN(arg, data); - data &= 0xff; - awacs_reg[0] &= ~(MASK_MUX_MIC | MASK_GAINLINE); - if (data >= 25) { - awacs_reg[0] |= MASK_MUX_MIC; - if (data >= 75) - awacs_reg[0] |= MASK_GAINLINE; - } - awacs_write(MASK_ADDR0 | awacs_reg[0]); - /* fall through */ - case SOUND_MIXER_READ_MIC: - data = (awacs_reg[0] & MASK_MUX_MIC)? - (awacs_reg[0] & MASK_GAINLINE? 100: 50): 0; - return IOCTL_OUT(arg, data); - case SOUND_MIXER_WRITE_CD: - IOCTL_IN(arg, data); - awacs_reg[0] &= ~MASK_MUX_CD; - if ((data & 0xff) >= 50) - awacs_reg[0] |= MASK_MUX_CD; - awacs_write(MASK_ADDR0 | awacs_reg[0]); - /* fall through */ - case SOUND_MIXER_READ_CD: - data = (awacs_reg[0] & MASK_MUX_CD)? 100: 0; - return IOCTL_OUT(arg, data); - case SOUND_MIXER_WRITE_RECLEV: - IOCTL_IN(arg, data); - data = awacs_volume_setter(data, 0, 0, 4); - return IOCTL_OUT(arg, data); - case SOUND_MIXER_READ_RECLEV: - data = awacs_get_volume(awacs_reg[0], 4); - return IOCTL_OUT(arg, data); - } - break; - } else { - /* We are, we are, we are... Burgundy or better */ - switch(cmd) { - case SOUND_MIXER_INFO: { - mixer_info info; - strncpy(info.id, "AWACS", sizeof(info.id)); - strncpy(info.name, "AWACS", sizeof(info.name)); - info.name[sizeof(info.name)-1] = 0; - info.modify_counter = mixer.modify_counter; - copy_to_user_ret((int *)arg, &info, - sizeof(info), -EFAULT); - return 0; - } - case SOUND_MIXER_READ_DEVMASK: - data = SOUND_MASK_VOLUME | SOUND_MASK_CD | - SOUND_MASK_LINE | SOUND_MASK_MIC | - SOUND_MASK_SPEAKER | SOUND_MASK_ALTPCM; - return IOCTL_OUT(arg, data); - case SOUND_MIXER_READ_RECMASK: - data = SOUND_MASK_LINE | SOUND_MASK_MIC - | SOUND_MASK_CD; - return IOCTL_OUT(arg, data); - case SOUND_MIXER_READ_RECSRC: - data = 0; - if (awacs_reg[0] & MASK_MUX_AUDIN) - data |= SOUND_MASK_LINE; - if (awacs_reg[0] & MASK_MUX_MIC) - data |= SOUND_MASK_MIC; - if (awacs_reg[0] & MASK_MUX_CD) - data |= SOUND_MASK_CD; - return IOCTL_OUT(arg, data); - case SOUND_MIXER_WRITE_RECSRC: - IOCTL_IN(arg, data); - data &= (SOUND_MASK_LINE - | SOUND_MASK_MIC | SOUND_MASK_CD); - awacs_reg[0] &= ~(MASK_MUX_CD | MASK_MUX_MIC - | MASK_MUX_AUDIN); - if (data & SOUND_MASK_LINE) - awacs_reg[0] |= MASK_MUX_AUDIN; - if (data & SOUND_MASK_MIC) - awacs_reg[0] |= MASK_MUX_MIC; - if (data & SOUND_MASK_CD) - awacs_reg[0] |= MASK_MUX_CD; - awacs_write(awacs_reg[0] | MASK_ADDR0); - return IOCTL_OUT(arg, data); - case SOUND_MIXER_READ_STEREODEVS: - data = SOUND_MASK_VOLUME | SOUND_MASK_SPEAKER - | SOUND_MASK_RECLEV | SOUND_MASK_CD - | SOUND_MASK_LINE; - return IOCTL_OUT(arg, data); - case SOUND_MIXER_READ_CAPS: - return IOCTL_OUT(arg, 0); - case SOUND_MIXER_WRITE_VOLUME: - IOCTL_IN(arg, data); - awacs_burgundy_write_mvolume(MASK_ADDR_BURGUNDY_MASTER_VOLUME, data); - /* Fall through */ - case SOUND_MIXER_READ_VOLUME: - return IOCTL_OUT(arg, awacs_burgundy_read_mvolume(MASK_ADDR_BURGUNDY_MASTER_VOLUME)); - case SOUND_MIXER_WRITE_SPEAKER: - IOCTL_IN(arg, data); - - if (!(data & 0xff)) { - /* Mute the left speaker */ - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES, - awacs_burgundy_rcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES) & ~0x2); - } else { - /* Unmute the left speaker */ - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES, - awacs_burgundy_rcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES) | 0x2); - } - if (!(data & 0xff00)) { - /* Mute the right speaker */ - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES, - awacs_burgundy_rcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES) & ~0x4); - } else { - /* Unmute the right speaker */ - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES, - awacs_burgundy_rcb(MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES) | 0x4); - } - - data = (((data&0xff)*16)/100 > 0xf ? 0xf : - (((data&0xff)*16)/100)) + - ((((data>>8)*16)/100 > 0xf ? 0xf : - ((((data>>8)*16)/100)))<<4); - - awacs_burgundy_wcb(MASK_ADDR_BURGUNDY_ATTENSPEAKER, ~data); - /* Fall through */ - case SOUND_MIXER_READ_SPEAKER: - data = awacs_burgundy_rcb(MASK_ADDR_BURGUNDY_ATTENSPEAKER); - data = (((data & 0xf)*100)/16) + ((((data>>4)*100)/16)<<8); - return IOCTL_OUT(arg, ~data); - case SOUND_MIXER_WRITE_ALTPCM: /* really bell volume */ - IOCTL_IN(arg, data); - beep_volume = data & 0xff; - /* fall through */ - case SOUND_MIXER_READ_ALTPCM: - return IOCTL_OUT(arg, beep_volume); - case SOUND_MIXER_WRITE_LINE: - IOCTL_IN(arg, data); - awacs_burgundy_write_volume(MASK_ADDR_BURGUNDY_VOLLINE, data); - - /* fall through */ - case SOUND_MIXER_READ_LINE: - data = awacs_burgundy_read_volume(MASK_ADDR_BURGUNDY_VOLLINE); - return IOCTL_OUT(arg, data); - case SOUND_MIXER_WRITE_MIC: - IOCTL_IN(arg, data); - /* Mic is mono device */ - data = (data << 8) + (data << 24); - awacs_burgundy_write_volume(MASK_ADDR_BURGUNDY_VOLMIC, data); - /* fall through */ - case SOUND_MIXER_READ_MIC: - data = awacs_burgundy_read_volume(MASK_ADDR_BURGUNDY_VOLMIC); - data <<= 24; - return IOCTL_OUT(arg, data); - case SOUND_MIXER_WRITE_CD: - IOCTL_IN(arg, data); - awacs_burgundy_write_volume(MASK_ADDR_BURGUNDY_VOLCD, data); - /* fall through */ - case SOUND_MIXER_READ_CD: - data = awacs_burgundy_read_volume(MASK_ADDR_BURGUNDY_VOLCD); - return IOCTL_OUT(arg, data); - case SOUND_MIXER_WRITE_RECLEV: - IOCTL_IN(arg, data); - data = awacs_volume_setter(data, 0, 0, 4); - return IOCTL_OUT(arg, data); - case SOUND_MIXER_READ_RECLEV: - data = awacs_get_volume(awacs_reg[0], 4); - return IOCTL_OUT(arg, data); - case SOUND_MIXER_OUTMASK: - break; - case SOUND_MIXER_OUTSRC: - break; - } - break; - } -#endif - } - - return -EINVAL; -} - - -static struct file_operations mixer_fops = -{ - llseek: sound_lseek, - ioctl: mixer_ioctl, - open: mixer_open, - release: mixer_release, -}; - - -static void __init mixer_init(void) -{ -#ifndef MODULE - int mixer_unit; -#endif - mixer_unit = register_sound_mixer(&mixer_fops, -1); - if (mixer_unit < 0) - return; - - mixer.busy = 0; - sound.treble = 0; - sound.bass = 0; - switch (sound.mach.type) { -#ifdef CONFIG_ATARI - case DMASND_TT: - atari_microwire_cmd(MW_LM1992_VOLUME(0)); - sound.volume_left = 0; - atari_microwire_cmd(MW_LM1992_BALLEFT(0)); - sound.volume_right = 0; - atari_microwire_cmd(MW_LM1992_BALRIGHT(0)); - atari_microwire_cmd(MW_LM1992_TREBLE(0)); - atari_microwire_cmd(MW_LM1992_BASS(0)); - break; - case DMASND_FALCON: - sound.volume_left = (tt_dmasnd.output_atten & 0xf00) >> 8; - sound.volume_right = (tt_dmasnd.output_atten & 0xf0) >> 4; - break; -#endif /* CONFIG_ATARI */ -#ifdef CONFIG_AMIGA - case DMASND_AMIGA: - sound.volume_left = 64; - sound.volume_right = 64; - custom.aud[0].audvol = sound.volume_left; - custom.aud[3].audvol = 1; /* For pseudo 14bit */ - custom.aud[1].audvol = sound.volume_right; - custom.aud[2].audvol = 1; /* For pseudo 14bit */ - sound.treble = 50; - break; -#endif /* CONFIG_AMIGA */ - } -} - - -/* - * Sound queue stuff, the heart of the driver - */ - - -static int sq_allocate_buffers(void) -{ - int i; - - if (sound_buffers) - return 0; - sound_buffers = kmalloc (numBufs * sizeof(char *), GFP_KERNEL); - if (!sound_buffers) - return -ENOMEM; - for (i = 0; i < numBufs; i++) { - sound_buffers[i] = sound.mach.dma_alloc (bufSize << 10, GFP_KERNEL); - if (!sound_buffers[i]) { - while (i--) - sound.mach.dma_free (sound_buffers[i], bufSize << 10); - kfree (sound_buffers); - sound_buffers = 0; - return -ENOMEM; - } - } - return 0; -} - - -static void sq_release_buffers(void) -{ - int i; - - if (sound_buffers) { - for (i = 0; i < numBufs; i++) - sound.mach.dma_free (sound_buffers[i], bufSize << 10); - kfree (sound_buffers); - sound_buffers = 0; - } -} - - -#ifdef CONFIG_PPC -static int sq_allocate_read_buffers(void) -{ - int i; - int j; - - if (sound_read_buffers) - return 0; - sound_read_buffers = kmalloc(numReadBufs * sizeof(char *), GFP_KERNEL); - if (!sound_read_buffers) - return -ENOMEM; - for (i = 0; i < numBufs; i++) { - sound_read_buffers[i] = sound.mach.dma_alloc (readbufSize<<10, - GFP_KERNEL); - if (!sound_read_buffers[i]) { - while (i--) - sound.mach.dma_free (sound_read_buffers[i], - readbufSize << 10); - kfree (sound_read_buffers); - sound_read_buffers = 0; - return -ENOMEM; - } - /* XXXX debugging code */ - for (j=0; j<readbufSize; j++) { - sound_read_buffers[i][j] = 0xef; - } - } - return 0; -} - -static void sq_release_read_buffers(void) -{ - int i; - volatile struct dbdma_cmd *cp; - - - if (sound_read_buffers) { - cp = awacs_rx_cmds; - for (i = 0; i < numReadBufs; i++,cp++) { - st_le16(&cp->command, DBDMA_STOP); - } - /* We should probably wait for the thing to stop before we - release the memory */ - for (i = 0; i < numBufs; i++) - sound.mach.dma_free (sound_read_buffers[i], - bufSize << 10); - kfree (sound_read_buffers); - sound_read_buffers = 0; - } -} -#endif - - -static void sq_setup(int numBufs, int bufSize, char **write_buffers) -{ -#ifdef CONFIG_PPC - int i; - volatile struct dbdma_cmd *cp; -#endif /* CONFIG_PPC */ - - sq.max_count = numBufs; - sq.max_active = numBufs; - sq.block_size = bufSize; - sq.buffers = write_buffers; - - sq.front = sq.count = 0; - sq.rear = -1; - sq.syncing = 0; - sq.active = 0; - -#ifdef CONFIG_ATARI - sq.ignore_int = 0; -#endif /* CONFIG_ATARI */ -#ifdef CONFIG_AMIGA - sq.block_size_half = sq.block_size>>1; - sq.block_size_quarter = sq.block_size_half>>1; -#endif /* CONFIG_AMIGA */ -#ifdef CONFIG_PPC - cp = awacs_tx_cmds; - memset((void *) cp, 0, (numBufs + 1) * sizeof(struct dbdma_cmd)); - for (i = 0; i < numBufs; ++i, ++cp) { - st_le32(&cp->phy_addr, virt_to_bus(write_buffers[i])); - } - st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS); - st_le32(&cp->cmd_dep, virt_to_bus(awacs_tx_cmds)); - out_le32(&awacs_txdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16); - out_le32(&awacs_txdma->cmdptr, virt_to_bus(awacs_tx_cmds)); -#endif /* CONFIG_PPC */ -} - -#ifdef CONFIG_PPC -static void read_sq_setup(int numBufs, int bufSize, char **read_buffers) -{ - int i; - volatile struct dbdma_cmd *cp; - - read_sq.max_count = numBufs; - read_sq.max_active = numBufs; - read_sq.block_size = bufSize; - read_sq.buffers = read_buffers; - - read_sq.front = read_sq.count = 0; - read_sq.rear = 0; - read_sq.rear_size = 0; - read_sq.syncing = 0; - read_sq.active = 0; - - cp = awacs_rx_cmds; - memset((void *) cp, 0, (numBufs + 1) * sizeof(struct dbdma_cmd)); - - /* Set dma buffers up in a loop */ - for (i = 0; i < numBufs; i++,cp++) { - st_le32(&cp->phy_addr, virt_to_bus(read_buffers[i])); - st_le16(&cp->command, INPUT_MORE + INTR_ALWAYS); - st_le16(&cp->req_count, read_sq.block_size); - st_le16(&cp->xfer_status, 0); - } - - /* The next two lines make the thing loop around. - */ - st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS); - st_le32(&cp->cmd_dep, virt_to_bus(awacs_rx_cmds)); - - /* Don't start until the first read is done. - * This will also abort any operations in progress if the DMA - * happens to be running (and it shouldn't). - */ - out_le32(&awacs_rxdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16); - out_le32(&awacs_rxdma->cmdptr, virt_to_bus(awacs_rx_cmds)); - -} -#endif /* CONFIG_PPC */ - - -static void sq_play(void) -{ - (*sound.mach.play)(); -} - - -/* ++TeSche: radically changed this one too */ - -static ssize_t sq_write(struct file *file, const char *src, size_t uLeft, - loff_t *ppos) -{ - ssize_t uWritten = 0; - u_char *dest; - ssize_t uUsed, bUsed, bLeft; - - /* ++TeSche: Is something like this necessary? - * Hey, that's an honest question! Or does any other part of the - * filesystem already checks this situation? I really don't know. - */ - if (uLeft == 0) - return 0; - - /* The interrupt doesn't start to play the last, incomplete frame. - * Thus we can append to it without disabling the interrupts! (Note - * also that sq.rear isn't affected by the interrupt.) - */ - - if (sq.count > 0 && (bLeft = sq.block_size-sq.rear_size) > 0) { - dest = sq_block_address(sq.rear); - bUsed = sq.rear_size; - uUsed = sound_copy_translate(src, uLeft, dest, &bUsed, bLeft); - if (uUsed <= 0) - return uUsed; - src += uUsed; - uWritten += uUsed; - uLeft -= uUsed; - sq.rear_size = bUsed; - } - - do { - while (sq.count == sq.max_active) { - sq_play(); - if (NON_BLOCKING(sq.open_mode)) - return uWritten > 0 ? uWritten : -EAGAIN; - SLEEP(sq.action_queue, ONE_SECOND); - if (SIGNAL_RECEIVED) - return uWritten > 0 ? uWritten : -EINTR; - } - - /* Here, we can avoid disabling the interrupt by first - * copying and translating the data, and then updating - * the sq variables. Until this is done, the interrupt - * won't see the new frame and we can work on it - * undisturbed. - */ - - dest = sq_block_address((sq.rear+1) % sq.max_count); - bUsed = 0; - bLeft = sq.block_size; - uUsed = sound_copy_translate(src, uLeft, dest, &bUsed, bLeft); - if (uUsed <= 0) - break; - src += uUsed; - uWritten += uUsed; - uLeft -= uUsed; - if (bUsed) { - sq.rear = (sq.rear+1) % sq.max_count; - sq.rear_size = bUsed; - sq.count++; - } - } while (bUsed); /* uUsed may have been 0 */ - - sq_play(); - - return uUsed < 0? uUsed: uWritten; -} - - -/***********/ - -#ifdef CONFIG_PPC - -/* Here is how the values are used for reading. - * The value 'active' simply indicates the DMA is running. This is - * done so the driver semantics are DMA starts when the first read is - * posted. The value 'front' indicates the buffer we should next - * send to the user. The value 'rear' indicates the buffer the DMA is - * currently filling. When 'front' == 'rear' the buffer "ring" is - * empty (we always have an empty available). The 'rear_size' is used - * to track partial offsets into the current buffer. Right now, I just keep - * the DMA running. If the reader can't keep up, the interrupt tosses - * the oldest buffer. We could also shut down the DMA in this case. - */ -static ssize_t sq_read(struct file *file, char *dst, size_t uLeft, - loff_t *ppos) -{ - - ssize_t uRead, bLeft, bUsed, uUsed; - - if (uLeft == 0) - return 0; - - if (!read_sq.active) - PMacRecord(); /* Kick off the record process. */ - - uRead = 0; - - /* Move what the user requests, depending upon other options. - */ - while (uLeft > 0) { - - /* When front == rear, the DMA is not done yet. - */ - while (read_sq.front == read_sq.rear) { - if (NON_BLOCKING(read_sq.open_mode)) { - return uRead > 0 ? uRead : -EAGAIN; - } - SLEEP(read_sq.action_queue, ONE_SECOND); - if (SIGNAL_RECEIVED) - return uRead > 0 ? uRead : -EINTR; - } - - /* The amount we move is either what is left in the - * current buffer or what the user wants. - */ - bLeft = read_sq.block_size - read_sq.rear_size; - bUsed = read_sq.rear_size; - uUsed = sound_copy_translate_read(dst, uLeft, - read_sq.buffers[read_sq.front], &bUsed, bLeft); - if (uUsed <= 0) - return uUsed; - dst += uUsed; - uRead += uUsed; - uLeft -= uUsed; - read_sq.rear_size += bUsed; - if (read_sq.rear_size >= read_sq.block_size) { - read_sq.rear_size = 0; - read_sq.front++; - if (read_sq.front >= read_sq.max_active) - read_sq.front = 0; - } - } - return uRead; -} -#endif - -static int sq_open(struct inode *inode, struct file *file) -{ - int rc = 0; - - MOD_INC_USE_COUNT; - if (file->f_mode & FMODE_WRITE) { - if (sq.busy) { - rc = -EBUSY; - if (NON_BLOCKING(file->f_flags)) - goto err_out; - rc = -EINTR; - while (sq.busy) { - SLEEP(sq.open_queue, ONE_SECOND); - if (SIGNAL_RECEIVED) - goto err_out; - } - } - sq.busy = 1; /* Let's play spot-the-race-condition */ - - if (sq_allocate_buffers()) goto err_out_nobusy; - - sq_setup(numBufs, bufSize<<10,sound_buffers); - sq.open_mode = file->f_mode; - } - - -#ifdef CONFIG_PPC - if (file->f_mode & FMODE_READ) { - if (read_sq.busy) { - rc = -EBUSY; - if (NON_BLOCKING(file->f_flags)) - goto err_out; - rc = -EINTR; - while (read_sq.busy) { - SLEEP(read_sq.open_queue, ONE_SECOND); - if (SIGNAL_RECEIVED) - goto err_out; - } - rc = 0; - } - read_sq.busy = 1; - if (sq_allocate_read_buffers()) goto err_out_nobusy; - - read_sq_setup(numReadBufs,readbufSize<<10, sound_read_buffers); - read_sq.open_mode = file->f_mode; - } -#endif - -#ifdef CONFIG_ATARI - sq.ignore_int = 1; -#endif /* CONFIG_ATARI */ - sound.minDev = MINOR(inode->i_rdev) & 0x0f; - sound.soft = sound.dsp; - sound.hard = sound.dsp; - sound_init(); - if ((MINOR(inode->i_rdev) & 0x0f) == SND_DEV_AUDIO) { - sound_set_speed(8000); - sound_set_stereo(0); - sound_set_format(AFMT_MU_LAW); - } - -#if 0 - if (file->f_mode == FMODE_READ) { - /* Start dma'ing straight away */ - PMacRecord(); - } -#endif - - return 0; - -err_out_nobusy: - if (file->f_mode & FMODE_WRITE) { - sq.busy = 0; - WAKE_UP(sq.open_queue); - } -#ifdef CONFIG_PPC - if (file->f_mode & FMODE_READ) { - read_sq.busy = 0; - WAKE_UP(read_sq.open_queue); - } -#endif -err_out: - MOD_DEC_USE_COUNT; - return rc; -} - - -static void sq_reset(void) -{ - sound_silence(); - sq.active = 0; - sq.count = 0; - sq.front = (sq.rear+1) % sq.max_count; -} - - -static int sq_fsync(struct file *filp, struct dentry *dentry) -{ - int rc = 0; - - sq.syncing = 1; - sq_play(); /* there may be an incomplete frame waiting */ - - while (sq.active) { - SLEEP(sq.sync_queue, ONE_SECOND); - if (SIGNAL_RECEIVED) { - /* While waiting for audio output to drain, an - * interrupt occurred. Stop audio output immediately - * and clear the queue. */ - sq_reset(); - rc = -EINTR; - break; - } - } - - sq.syncing = 0; - return rc; -} - -static int sq_release(struct inode *inode, struct file *file) -{ - int rc = 0; - - if (sq.busy) - rc = sq_fsync(file, file->f_dentry); - sound.soft = sound.dsp; - sound.hard = sound.dsp; - sound_silence(); - -#ifdef CONFIG_PPC - sq_release_read_buffers(); -#endif - sq_release_buffers(); - MOD_DEC_USE_COUNT; - - /* There is probably a DOS atack here. They change the mode flag. */ - /* XXX add check here */ -#ifdef CONFIG_PPC - if (file->f_mode & FMODE_READ) { - read_sq.busy = 0; - WAKE_UP(read_sq.open_queue); - } -#endif - - if (file->f_mode & FMODE_WRITE) { - sq.busy = 0; - WAKE_UP(sq.open_queue); - } - - /* Wake up a process waiting for the queue being released. - * Note: There may be several processes waiting for a call - * to open() returning. */ - - return rc; -} - - -static int sq_ioctl(struct inode *inode, struct file *file, u_int cmd, - u_long arg) -{ - u_long fmt; - int data; - int size, nbufs; - audio_buf_info info; - - switch (cmd) { - case SNDCTL_DSP_RESET: - sq_reset(); - return 0; - case SNDCTL_DSP_POST: - case SNDCTL_DSP_SYNC: - return sq_fsync(file, file->f_dentry); - - /* ++TeSche: before changing any of these it's - * probably wise to wait until sound playing has - * settled down. */ - case SNDCTL_DSP_SPEED: - sq_fsync(file, file->f_dentry); - IOCTL_IN(arg, data); - return IOCTL_OUT(arg, sound_set_speed(data)); - case SNDCTL_DSP_STEREO: - sq_fsync(file, file->f_dentry); - IOCTL_IN(arg, data); - return IOCTL_OUT(arg, sound_set_stereo(data)); - case SOUND_PCM_WRITE_CHANNELS: - sq_fsync(file, file->f_dentry); - IOCTL_IN(arg, data); - return IOCTL_OUT(arg, sound_set_stereo(data-1)+1); - case SNDCTL_DSP_SETFMT: - sq_fsync(file, file->f_dentry); - IOCTL_IN(arg, data); - return IOCTL_OUT(arg, sound_set_format(data)); - case SNDCTL_DSP_GETFMTS: - fmt = 0; - if (sound.trans) { - if (sound.trans->ct_ulaw) - fmt |= AFMT_MU_LAW; - if (sound.trans->ct_alaw) - fmt |= AFMT_A_LAW; - if (sound.trans->ct_s8) - fmt |= AFMT_S8; - if (sound.trans->ct_u8) - fmt |= AFMT_U8; - if (sound.trans->ct_s16be) - fmt |= AFMT_S16_BE; - if (sound.trans->ct_u16be) - fmt |= AFMT_U16_BE; - if (sound.trans->ct_s16le) - fmt |= AFMT_S16_LE; - if (sound.trans->ct_u16le) - fmt |= AFMT_U16_LE; - } - return IOCTL_OUT(arg, fmt); - case SNDCTL_DSP_GETBLKSIZE: - size = sq.block_size - * sound.soft.size * (sound.soft.stereo + 1) - / (sound.hard.size * (sound.hard.stereo + 1)); - return IOCTL_OUT(arg, size); - case SNDCTL_DSP_SUBDIVIDE: - break; - case SNDCTL_DSP_SETFRAGMENT: - if (sq.count || sq.active || sq.syncing) - return -EINVAL; - IOCTL_IN(arg, size); - nbufs = size >> 16; - if (nbufs < 2 || nbufs > numBufs) - nbufs = numBufs; - size &= 0xffff; - if (size >= 8 && size <= 29) { - size = 1 << size; - size *= sound.hard.size * (sound.hard.stereo + 1); - size /= sound.soft.size * (sound.soft.stereo + 1); - if (size > (bufSize << 10)) - size = bufSize << 10; - } else - size = bufSize << 10; - sq_setup(numBufs, size, sound_buffers); - sq.max_active = nbufs; - return 0; - case SNDCTL_DSP_GETOSPACE: - info.fragments = sq.max_active - sq.count; - info.fragstotal = sq.max_active; - info.fragsize = sq.block_size; - info.bytes = info.fragments * info.fragsize; - if (copy_to_user((void *)arg, &info, sizeof(info))) - return -EFAULT; - return 0; - - default: - return mixer_ioctl(inode, file, cmd, arg); - } - return -EINVAL; -} - - - -static struct file_operations sq_fops = -{ - llseek: sound_lseek, - write: sq_write, - ioctl: sq_ioctl, - open: sq_open, - release: sq_release, -#ifdef CONFIG_PPC - read: sq_read, /* sq_read */ -#endif -}; - - -static void __init sq_init(void) -{ -#ifndef MODULE - int sq_unit; -#endif - sq_unit = register_sound_dsp(&sq_fops, -1); - if (sq_unit < 0) - return; - - init_waitqueue_head(&sq.action_queue); - init_waitqueue_head(&sq.open_queue); - init_waitqueue_head(&sq.sync_queue); - -#ifdef CONFIG_PPC - init_waitqueue_head(&read_sq.action_queue); - init_waitqueue_head(&read_sq.open_queue); - init_waitqueue_head(&read_sq.sync_queue); -#endif - - sq.busy = 0; -#ifdef CONFIG_PPC - read_sq.busy = 0; -#endif - - /* whatever you like as startup mode for /dev/dsp, - * (/dev/audio hasn't got a startup mode). note that - * once changed a new open() will *not* restore these! - */ - sound.dsp.format = AFMT_U8; - sound.dsp.stereo = 0; - sound.dsp.size = 8; - - /* set minimum rate possible without expanding */ - switch (sound.mach.type) { -#ifdef CONFIG_ATARI - case DMASND_TT: - sound.dsp.speed = 6258; - break; - case DMASND_FALCON: - sound.dsp.speed = 8195; - break; -#endif /* CONFIG_ATARI */ -#ifdef CONFIG_AMIGA - case DMASND_AMIGA: - sound.dsp.speed = 8000; - break; -#endif /* CONFIG_AMIGA */ -#ifdef CONFIG_PPC - case DMASND_AWACS: - sound.dsp.speed = 8000; - break; -#endif /* CONFIG_PPC */ - } - - /* before the first open to /dev/dsp this wouldn't be set */ - sound.soft = sound.dsp; - sound.hard = sound.dsp; - - sound_silence(); -} - -/* - * /dev/sndstat - */ - - -/* state.buf should not overflow! */ - -static int state_open(struct inode *inode, struct file *file) -{ - char *buffer = state.buf, *mach = ""; -#ifdef CONFIG_PPC - char awacs_buf[64]; -#endif - int len = 0; - - if (state.busy) - return -EBUSY; - - MOD_INC_USE_COUNT; - state.ptr = 0; - state.busy = 1; - - switch (sound.mach.type) { -#ifdef CONFIG_ATARI - case DMASND_TT: - case DMASND_FALCON: - mach = "Atari "; - break; -#endif /* CONFIG_ATARI */ -#ifdef CONFIG_AMIGA - case DMASND_AMIGA: - mach = "Amiga "; - break; -#endif /* CONFIG_AMIGA */ -#ifdef CONFIG_PPC - case DMASND_AWACS: - sprintf(awacs_buf, "PowerMac (AWACS rev %d) ", awacs_revision); - mach = awacs_buf; - break; -#endif /* CONFIG_PPC */ - } - len += sprintf(buffer+len, "%sDMA sound driver:\n", mach); - - len += sprintf(buffer+len, "\tsound.format = 0x%x", sound.soft.format); - switch (sound.soft.format) { - case AFMT_MU_LAW: - len += sprintf(buffer+len, " (mu-law)"); - break; - case AFMT_A_LAW: - len += sprintf(buffer+len, " (A-law)"); - break; - case AFMT_U8: - len += sprintf(buffer+len, " (unsigned 8 bit)"); - break; - case AFMT_S8: - len += sprintf(buffer+len, " (signed 8 bit)"); - break; - case AFMT_S16_BE: - len += sprintf(buffer+len, " (signed 16 bit big)"); - break; - case AFMT_U16_BE: - len += sprintf(buffer+len, " (unsigned 16 bit big)"); - break; - case AFMT_S16_LE: - len += sprintf(buffer+len, " (signed 16 bit little)"); - break; - case AFMT_U16_LE: - len += sprintf(buffer+len, " (unsigned 16 bit little)"); - break; - } - len += sprintf(buffer+len, "\n"); - len += sprintf(buffer+len, "\tsound.speed = %dHz (phys. %dHz)\n", - sound.soft.speed, sound.hard.speed); - len += sprintf(buffer+len, "\tsound.stereo = 0x%x (%s)\n", - sound.soft.stereo, sound.soft.stereo ? "stereo" : "mono"); - switch (sound.mach.type) { -#ifdef CONFIG_ATARI - case DMASND_TT: - len += sprintf(buffer+len, "\tsound.volume_left = %ddB [-40...0]\n", - sound.volume_left); - len += sprintf(buffer+len, "\tsound.volume_right = %ddB [-40...0]\n", - sound.volume_right); - len += sprintf(buffer+len, "\tsound.bass = %ddB [-12...+12]\n", - sound.bass); - len += sprintf(buffer+len, "\tsound.treble = %ddB [-12...+12]\n", - sound.treble); - break; - case DMASND_FALCON: - len += sprintf(buffer+len, "\tsound.volume_left = %ddB [-22.5...0]\n", - sound.volume_left); - len += sprintf(buffer+len, "\tsound.volume_right = %ddB [-22.5...0]\n", - sound.volume_right); - break; -#endif /* CONFIG_ATARI */ -#ifdef CONFIG_AMIGA - case DMASND_AMIGA: - len += sprintf(buffer+len, "\tsound.volume_left = %d [0...64]\n", - sound.volume_left); - len += sprintf(buffer+len, "\tsound.volume_right = %d [0...64]\n", - sound.volume_right); - break; -#endif /* CONFIG_AMIGA */ - } - len += sprintf(buffer+len, "\tsq.block_size = %d sq.max_count = %d" - " sq.max_active = %d\n", - sq.block_size, sq.max_count, sq.max_active); - len += sprintf(buffer+len, "\tsq.count = %d sq.rear_size = %d\n", sq.count, - sq.rear_size); - len += sprintf(buffer+len, "\tsq.active = %d sq.syncing = %d\n", - sq.active, sq.syncing); - state.len = len; - return 0; -} - - -static int state_release(struct inode *inode, struct file *file) -{ - state.busy = 0; - MOD_DEC_USE_COUNT; - return 0; -} - - -static ssize_t state_read(struct file *file, char *buf, size_t count, - loff_t *ppos) -{ - int n = state.len - state.ptr; - if (n > count) - n = count; - if (n <= 0) - return 0; - if (copy_to_user(buf, &state.buf[state.ptr], n)) - return -EFAULT; - state.ptr += n; - return n; -} - - -static struct file_operations state_fops = -{ - llseek: sound_lseek, - read: state_read, - open: state_open, - release: state_release, -}; - - -static void __init state_init(void) -{ -#ifndef MODULE - int state_unit; -#endif - state_unit = register_sound_special(&state_fops, SND_DEV_STATUS); - if (state_unit < 0) - return; - state.busy = 0; -} - - -/*** Common stuff ********************************************************/ - -static long long sound_lseek(struct file *file, long long offset, int orig) -{ - return -ESPIPE; -} - - -/*** Config & Setup **********************************************************/ - - -void __init dmasound_init(void) -{ - int has_sound = 0; -#ifdef CONFIG_PPC - struct device_node *np; -#endif - -#if defined(__mc68000__) || defined(CONFIG_APUS) - switch (m68k_machtype) { -#ifdef CONFIG_ATARI - case MACH_ATARI: - if (ATARIHW_PRESENT(PCM_8BIT)) { - if (ATARIHW_PRESENT(CODEC)) - sound.mach = machFalcon; - else if (ATARIHW_PRESENT(MICROWIRE)) - sound.mach = machTT; - else - break; - if ((mfp.int_en_a & mfp.int_mk_a & 0x20) == 0) - has_sound = 1; - else - printk("DMA sound driver: Timer A interrupt already in use\n"); - } - break; - -#endif /* CONFIG_ATARI */ -#ifdef CONFIG_AMIGA - case MACH_AMIGA: - if (AMIGAHW_PRESENT(AMI_AUDIO)) { - sound.mach = machAmiga; - has_sound = 1; - } - break; -#endif /* CONFIG_AMIGA */ - } -#endif /* __mc68000__||CONFIG_APUS */ - -#ifdef CONFIG_PPC - awacs_subframe = 0; - awacs_revision = 0; - np = find_devices("awacs"); - if (np == 0) { - /* - * powermac G3 models have a node called "davbus" - * with a child called "sound". - */ - struct device_node *sound; - np = find_devices("davbus"); - sound = find_devices("sound"); - if (sound != 0 && sound->parent == np) { - unsigned int *prop, l, i; - prop = (unsigned int *) - get_property(sound, "sub-frame", 0); - if (prop != 0 && *prop >= 0 && *prop < 16) - awacs_subframe = *prop; - if (device_is_compatible(sound, "burgundy")) - awacs_revision = AWACS_BURGUNDY; - - /* look for a property saying what sample rates - are available */ - for (i = 0; i < 8; ++i) - awacs_freqs_ok[i] = 0; - prop = (unsigned int *) get_property - (sound, "sample-rates", &l); - if (prop == 0) - prop = (unsigned int *) get_property - (sound, "output-frame-rates", &l); - if (prop != 0) { - for (l /= sizeof(int); l > 0; --l) { - /* sometimes the rate is in the - high-order 16 bits (?) */ - unsigned int r = *prop++; - if (r >= 0x10000) - r >>= 16; - for (i = 0; i < 8; ++i) { - if (r == awacs_freqs[i]) { - awacs_freqs_ok[i] = 1; - break; - } - } - } - } else { - /* assume just 44.1k is OK */ - awacs_freqs_ok[0] = 1; - } - } - } - if (np != NULL && np->n_addrs >= 3 && np->n_intrs >= 3) { - int vol; - sound.mach = machPMac; - has_sound = 1; - - awacs = (volatile struct awacs_regs *) - ioremap(np->addrs[0].address, 0x80); - awacs_txdma = (volatile struct dbdma_regs *) - ioremap(np->addrs[1].address, 0x100); - awacs_rxdma = (volatile struct dbdma_regs *) - ioremap(np->addrs[2].address, 0x100); - - awacs_irq = np->intrs[0].line; - awacs_tx_irq = np->intrs[1].line; - awacs_rx_irq = np->intrs[2].line; - - awacs_tx_cmd_space = kmalloc((numBufs + 4) * sizeof(struct dbdma_cmd), - GFP_KERNEL); - if (awacs_tx_cmd_space == NULL) { - printk(KERN_ERR "DMA sound driver: Not enough buffer memory, driver disabled!\n"); - return; - } - awacs_node = np; -#ifdef CONFIG_PMAC_PBOOK - if (machine_is_compatible("PowerBook1,1") - || machine_is_compatible("AAPL,PowerBook1998")) { - feature_set(np, FEATURE_Sound_CLK_enable); - feature_set(np, FEATURE_Sound_power); - /* Shorter delay will not work */ - mdelay(1000); - } -#endif - awacs_tx_cmds = (volatile struct dbdma_cmd *) - DBDMA_ALIGN(awacs_tx_cmd_space); - - - awacs_rx_cmd_space = kmalloc((numReadBufs + 4) * sizeof(struct dbdma_cmd), - GFP_KERNEL); - if (awacs_rx_cmd_space == NULL) { - printk("DMA sound driver: No memory for input"); - } - awacs_rx_cmds = (volatile struct dbdma_cmd *) - DBDMA_ALIGN(awacs_rx_cmd_space); - - - - awacs_reg[0] = MASK_MUX_CD; - awacs_reg[1] = MASK_LOOPTHRU | MASK_PAROUT; - /* get default volume from nvram */ - vol = (~nvram_read_byte(0x1308) & 7) << 1; - awacs_reg[2] = vol + (vol << 6); - awacs_reg[4] = vol + (vol << 6); - out_le32(&awacs->control, 0x11); - awacs_write(awacs_reg[0] + MASK_ADDR0); - awacs_write(awacs_reg[1] + MASK_ADDR1); - awacs_write(awacs_reg[2] + MASK_ADDR2); - awacs_write(awacs_reg[4] + MASK_ADDR4); - - /* Initialize recent versions of the awacs */ - if (awacs_revision == 0) { - awacs_revision = - (in_le32(&awacs->codec_stat) >> 12) & 0xf; - if (awacs_revision == 3) { - mdelay(100); - awacs_write(0x6000); - mdelay(2); - awacs_write(awacs_reg[1] + MASK_ADDR1); - awacs_enable_amp(100 * 0x101); - } - } - if (awacs_revision >= AWACS_BURGUNDY) - awacs_burgundy_init(); - - /* Initialize beep stuff */ - beep_dbdma_cmd = awacs_tx_cmds + (numBufs + 1); - orig_mksound = kd_mksound; - kd_mksound = awacs_mksound; - beep_buf = (short *) kmalloc(BEEP_BUFLEN * 4, GFP_KERNEL); - if (beep_buf == NULL) - printk(KERN_WARNING "dmasound: no memory for " - "beep buffer\n"); -#ifdef CONFIG_PMAC_PBOOK - pmu_register_sleep_notifier(&awacs_sleep_notifier); -#endif /* CONFIG_PMAC_PBOOK */ - - /* Powerbooks have odd ways of enabling inputs such as - an expansion-bay CD or sound from an internal modem - or a PC-card modem. */ - if (machine_is_compatible("AAPL,3400/2400") - || machine_is_compatible("AAPL,3500")) { - is_pbook_3400 = 1; - /* - * Enable CD and PC-card sound inputs. - * This is done by reading from address - * f301a000, + 0x10 to enable the expansion-bay - * CD sound input, + 0x80 to enable the PC-card - * sound input. The 0x100 enables the SCSI bus - * terminator power. - */ - latch_base = (unsigned char *) ioremap - (0xf301a000, 0x1000); - in_8(latch_base + 0x190); - } else if (machine_is_compatible("PowerBook1,1") - || machine_is_compatible("AAPL,PowerBook1998")) { - struct device_node* mio; - macio_base = 0; - is_pbook_G3 = 1; - for (mio = np->parent; mio; mio = mio->parent) { - if (strcmp(mio->name, "mac-io") == 0 - && mio->n_addrs > 0) { - macio_base = (unsigned char *) ioremap - (mio->addrs[0].address, 0x40); - break; - } - } - /* enable CD sound input */ - if (macio_base) - out_8(macio_base + 0x37, 3); - } - } -#endif /* CONFIG_PPC */ - - if (!has_sound) - return; - - /* Set up sound queue, /dev/audio and /dev/dsp. */ - - /* Set default settings. */ - sq_init(); - - /* Set up /dev/sndstat. */ - state_init(); - - /* Set up /dev/mixer. */ - mixer_init(); - - if (!sound.mach.irqinit()) { - printk(KERN_ERR "DMA sound driver: Interrupt initialization failed\n"); - return; - } -#ifdef MODULE - irq_installed = 1; -#endif - - printk(KERN_INFO "DMA sound driver installed, using %d buffers of %dk.\n", - numBufs, bufSize); - - return; -} - - -static int __init dmasound_setup(char *str) -{ - int ints[6]; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - /* check the bootstrap parameter for "dmasound=" */ - - switch (ints[0]) { - case 3: - if ((ints[3] < 0) || (ints[3] > MAX_CATCH_RADIUS)) - printk("dmasound_setup: illegal catch radius, using default = %d\n", catchRadius); - else - catchRadius = ints[3]; - /* fall through */ - case 2: - if (ints[1] < MIN_BUFFERS) - printk("dmasound_setup: illegal number of buffers, using default = %d\n", numBufs); - else - numBufs = ints[1]; - if (ints[2] < MIN_BUFSIZE || ints[2] > MAX_BUFSIZE) - printk("dmasound_setup: illegal buffer size, using default = %d\n", bufSize); - else - bufSize = ints[2]; - break; - case 0: - break; - default: - printk("dmasound_setup: illegal number of arguments\n"); - return 0; - } - - return 1; -} - -__setup("dmasound=", dmasound_setup); - - -#ifdef MODULE - -int init_module(void) -{ - dmasound_init(); - return 0; -} - - -void cleanup_module(void) -{ - if (irq_installed) { - sound_silence(); - sound.mach.irqcleanup(); - } - -#ifdef CONFIG_PPC - sq_release_read_buffers(); -#endif - sq_release_buffers(); - - if (mixer_unit >= 0) - unregister_sound_mixer(mixer_unit); - if (state_unit >= 0) - unregister_sound_special(state_unit); - if (sq_unit >= 0) - unregister_sound_dsp(sq_unit); -} - -#endif /* MODULE */ |