| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Linus Torvalds (pre-git) | 858 | 81.87% | 2 | 16.67% |
| Geert Uytterhoeven | 153 | 14.60% | 3 | 25.00% |
| Andrew Morton | 18 | 1.72% | 1 | 8.33% |
| Al Viro | 15 | 1.43% | 4 | 33.33% |
| Peter Wächtler | 3 | 0.29% | 1 | 8.33% |
| Greg Kroah-Hartman | 1 | 0.10% | 1 | 8.33% |
| Total | 1048 | 12 |
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _dmasound_h_ /* * linux/sound/oss/dmasound/dmasound.h * * * Minor numbers for the sound driver. * * Unfortunately Creative called the codec chip of SB as a DSP. For this * reason the /dev/dsp is reserved for digitized audio use. There is a * device for true DSP processors but it will be called something else. * In v3.0 it's /dev/sndproc but this could be a temporary solution. */ #define _dmasound_h_ #include <linux/types.h> #define SND_NDEVS 256 /* Number of supported devices */ #define SND_DEV_CTL 0 /* Control port /dev/mixer */ #define SND_DEV_SEQ 1 /* Sequencer output /dev/sequencer (FM synthesizer and MIDI output) */ #define SND_DEV_MIDIN 2 /* Raw midi access */ #define SND_DEV_DSP 3 /* Digitized voice /dev/dsp */ #define SND_DEV_AUDIO 4 /* Sparc compatible /dev/audio */ #define SND_DEV_DSP16 5 /* Like /dev/dsp but 16 bits/sample */ #define SND_DEV_STATUS 6 /* /dev/sndstat */ /* #7 not in use now. Was in 2.4. Free for use after v3.0. */ #define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */ #define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */ #define SND_DEV_PSS SND_DEV_SNDPROC /* switch on various prinks */ #define DEBUG_DMASOUND 1 #define MAX_AUDIO_DEV 5 #define MAX_MIXER_DEV 4 #define MAX_SYNTH_DEV 3 #define MAX_MIDI_DEV 6 #define MAX_TIMER_DEV 3 #define MAX_CATCH_RADIUS 10 #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 __user *)(arg)); \ if (error) return error; \ } while (0) #define IOCTL_OUT(arg, ret) ioctl_return((int __user *)(arg), ret) static inline int ioctl_return(int __user *addr, int value) { return value < 0 ? value : put_user(value, addr); } /* * Configuration */ #undef HAS_8BIT_TABLES #if defined(CONFIG_DMASOUND_ATARI) || defined(CONFIG_DMASOUND_ATARI_MODULE) ||\ defined(CONFIG_DMASOUND_PAULA) || defined(CONFIG_DMASOUND_PAULA_MODULE) ||\ defined(CONFIG_DMASOUND_Q40) || defined(CONFIG_DMASOUND_Q40_MODULE) #define HAS_8BIT_TABLES #define MIN_BUFFERS 4 #define MIN_BUFSIZE (1<<12) /* in bytes (- where does this come from ?) */ #define MIN_FRAG_SIZE 8 /* not 100% sure about this */ #define MAX_BUFSIZE (1<<17) /* Limit for Amiga is 128 kb */ #define MAX_FRAG_SIZE 15 /* allow *4 for mono-8 => stereo-16 (for multi) */ #else /* is pmac and multi is off */ #define MIN_BUFFERS 2 #define MIN_BUFSIZE (1<<8) /* in bytes */ #define MIN_FRAG_SIZE 8 #define MAX_BUFSIZE (1<<18) /* this is somewhat arbitrary for pmac */ #define MAX_FRAG_SIZE 16 /* need to allow *4 for mono-8 => stereo-16 */ #endif #define DEFAULT_N_BUFFERS 4 #define DEFAULT_BUFF_SIZE (1<<15) /* * Initialization */ extern int dmasound_init(void); #ifdef MODULE extern void dmasound_deinit(void); #else #define dmasound_deinit() do { } while (0) #endif /* description of the set-up applies to either hard or soft settings */ typedef struct { int format; /* AFMT_* */ int stereo; /* 0 = mono, 1 = stereo */ int size; /* 8/16 bit*/ int speed; /* speed */ } SETTINGS; /* * Machine definitions */ typedef struct { const char *name; const char *name2; struct module *owner; void *(*dma_alloc)(unsigned int, gfp_t); void (*dma_free)(void *, unsigned int); int (*irqinit)(void); #ifdef MODULE void (*irqcleanup)(void); #endif void (*init)(void); void (*silence)(void); int (*setFormat)(int); int (*setVolume)(int); int (*setBass)(int); int (*setTreble)(int); int (*setGain)(int); void (*play)(void); void (*record)(void); /* optional */ void (*mixer_init)(void); /* optional */ int (*mixer_ioctl)(u_int, u_long); /* optional */ int (*write_sq_setup)(void); /* optional */ int (*read_sq_setup)(void); /* optional */ int (*sq_open)(fmode_t); /* optional */ int (*state_info)(char *, size_t); /* optional */ void (*abort_read)(void); /* optional */ int min_dsp_speed; int max_dsp_speed; int version ; int hardware_afmts ; /* OSS says we only return h'ware info */ /* when queried via SNDCTL_DSP_GETFMTS */ int capabilities ; /* low-level reply to SNDCTL_DSP_GETCAPS */ SETTINGS default_hard ; /* open() or init() should set something valid */ SETTINGS default_soft ; /* you can make it look like old OSS, if you want to */ } MACHINE; /* * Low level stuff */ typedef struct { ssize_t (*ct_ulaw)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t); ssize_t (*ct_alaw)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t); ssize_t (*ct_s8)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t); ssize_t (*ct_u8)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t); ssize_t (*ct_s16be)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t); ssize_t (*ct_u16be)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t); ssize_t (*ct_s16le)(const u_char __user *, size_t, u_char *, ssize_t *, ssize_t); ssize_t (*ct_u16le)(const u_char __user *, 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_write; /* supported translations */ 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 */ spinlock_t lock; }; extern struct sound_settings dmasound; #ifdef HAS_8BIT_TABLES extern char dmasound_ulaw2dma8[]; extern char dmasound_alaw2dma8[]; #endif /* * Mid level stuff */ static inline int dmasound_set_volume(int volume) { return dmasound.mach.setVolume(volume); } static inline int dmasound_set_bass(int bass) { return dmasound.mach.setBass ? dmasound.mach.setBass(bass) : 50; } static inline int dmasound_set_treble(int treble) { return dmasound.mach.setTreble ? dmasound.mach.setTreble(treble) : 50; } static inline int dmasound_set_gain(int gain) { return dmasound.mach.setGain ? dmasound.mach.setGain(gain) : 100; } /* * Sound queue stuff, the heart of the driver */ struct sound_queue { /* buffers allocated for this queue */ int numBufs; /* real limits on what the user can have */ int bufSize; /* in bytes */ char **buffers; /* current parameters */ int locked ; /* params cannot be modified when != 0 */ int user_frags ; /* user requests this many */ int user_frag_size ; /* of this size */ int max_count; /* actual # fragments <= numBufs */ int block_size; /* internal block size in bytes */ int max_active; /* in-use fragments <= max_count */ /* 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 non_blocking; int busy, syncing, xruns, died; }; #define WAKE_UP(queue) (wake_up_interruptible(&queue)) extern struct sound_queue dmasound_write_sq; #define write_sq dmasound_write_sq extern int dmasound_catchRadius; #define catchRadius dmasound_catchRadius /* define the value to be put in the byte-swap reg in mac-io when we want it to swap for us. */ #define BS_VAL 1 #define SW_INPUT_VOLUME_SCALE 4 #define SW_INPUT_VOLUME_DEFAULT (128 / SW_INPUT_VOLUME_SCALE) extern int expand_read_bal; /* Balance factor for reading */ extern uint software_input_volume; /* software implemented recording volume! */ #endif /* _dmasound_h_ */
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1