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Subject[PATCH] dmasound resurrection
Resurrect dmasound:
- Re-add dmasound to the build process
- Update dmasound.h, which got missed in the dmasound update in 2.5.15
- Compile fixes for core, Atari, Amiga Paula, and Q40:
o Update for s/MINOR/minor/g changes
o Add missing <linux/interrupt.h>
o Fix spinlock typo

--- linux-2.5.68/sound/Makefile Mon Feb 10 21:59:35 2003
+++ linux-m68k-2.5.68/sound/Makefile Mon Apr 7 16:49:16 2003
@@ -3,6 +3,7 @@

obj-$(CONFIG_SOUND) += soundcore.o
obj-$(CONFIG_SOUND_PRIME) += oss/
+obj-$(CONFIG_DMASOUND) += oss/
obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ synth/ usb/ sparc/

ifeq ($(CONFIG_SND),y)
--- linux-2.5.68/sound/oss/dmasound/dmasound.h Tue Oct 1 18:44:25 2002
+++ linux-m68k-2.5.68/sound/oss/dmasound/dmasound.h Mon Apr 21 17:33:54 2003
@@ -1,4 +1,4 @@
-
+#ifndef _dmasound_h_
/*
* linux/drivers/sound/dmasound/dmasound.h
*
@@ -10,11 +10,11 @@
* 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>
#include <linux/config.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
@@ -29,23 +29,16 @@
#define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */
#define SND_DEV_PSS SND_DEV_SNDPROC

-#define DSP_DEFAULT_SPEED 8000
-
-#define ON 1
-#define OFF 0
+/* switch on various prinks */
+#define DEBUG_DMASOUND 1

#define MAX_AUDIO_DEV 5
-#define MAX_MIXER_DEV 2
+#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 MIN_BUFFERS 4
-#define MIN_BUFSIZE 4 /* in KB */
-#define MAX_BUFSIZE 128 /* Limit for Amiga in KB */
-

#define le2be16(x) (((x)<<8 & 0xff00) | ((x)>>8 & 0x00ff))
#define le2be16dbl(x) (((x)<<8 & 0xff00ff00) | ((x)>>8 & 0x00ff00ff))
@@ -67,21 +60,34 @@
*/

#undef HAS_8BIT_TABLES
-#undef HAS_14BIT_TABLES
-#undef HAS_16BIT_TABLES
#undef HAS_RECORD

#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
-#if defined(CONFIG_DMASOUND_AWACS) || defined(CONFIG_DMASOUND_AWACS_MODULE)
-#define HAS_16BIT_TABLES
+
+#define DEFAULT_N_BUFFERS 4
+#define DEFAULT_BUFF_SIZE (1<<15)
+
+#if defined(CONFIG_DMASOUND_PMAC) || defined(CONFIG_DMASOUND_PMAC_MODULE)
#define HAS_RECORD
#endif

-
/*
* Initialization
*/
@@ -93,6 +99,14 @@
#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
@@ -117,30 +131,29 @@
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 */
- void (*write_sq_setup)(void); /* optional */
- void (*read_sq_setup)(void); /* optional */
- void (*sq_open)(void); /* optional */
- int (*state_info)(char *); /* optional */
- void (*abort_read)(void); /* optional */
+ 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)(mode_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 {
- 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);
@@ -171,11 +184,10 @@

extern struct sound_settings dmasound;

+#ifdef HAS_8BIT_TABLES
extern char dmasound_ulaw2dma8[];
extern char dmasound_alaw2dma8[];
-extern short dmasound_ulaw2dma16[];
-extern short dmasound_alaw2dma16[];
-
+#endif

/*
* Mid level stuff
@@ -208,14 +220,17 @@

struct sound_queue {
/* buffers allocated for this queue */
- int numBufs;
- int bufSize; /* in bytes */
+ int numBufs; /* real limits on what the user can have */
+ int bufSize; /* in bytes */
char **buffers;

/* current parameters */
- int max_count;
- int block_size; /* in bytes */
- int max_active;
+ 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;
@@ -231,19 +246,32 @@
int active;
wait_queue_head_t action_queue, open_queue, sync_queue;
int open_mode;
- int busy, syncing;
+ int busy, syncing, xruns, died;
};

#define SLEEP(queue) interruptible_sleep_on_timeout(&queue, HZ)
#define WAKE_UP(queue) (wake_up_interruptible(&queue))

extern struct sound_queue dmasound_write_sq;
-extern struct sound_queue dmasound_read_sq;
-
#define write_sq dmasound_write_sq
+
+#ifdef HAS_RECORD
+extern struct sound_queue dmasound_read_sq;
#define read_sq dmasound_read_sq
+#endif

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
+
+static inline void wait_ms(unsigned int ms)
+{
+ current->state = TASK_UNINTERRUPTIBLE;
+ schedule_timeout(1 + ms * HZ / 1000);
+}
+
+#endif /* _dmasound_h_ */
--- linux-2.5.68/sound/oss/dmasound/dmasound_atari.c Sun Apr 20 12:29:14 2003
+++ linux-m68k-2.5.68/sound/oss/dmasound/dmasound_atari.c Mon Apr 21 18:17:41 2003
@@ -20,6 +20,8 @@
#include <linux/soundcard.h>
#include <linux/mm.h>
#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+
#include <asm/pgalloc.h>
#include <asm/uaccess.h>
#include <asm/atariints.h>
--- linux-2.5.68/sound/oss/dmasound/dmasound_core.c Sun Apr 20 12:29:14 2003
+++ linux-m68k-2.5.68/sound/oss/dmasound/dmasound_core.c Mon Apr 21 17:40:45 2003
@@ -904,7 +904,7 @@
O_RDONLY and dsp1 could be opened O_WRONLY
*/

- dmasound.minDev = MINOR(inode->i_rdev) & 0x0f;
+ dmasound.minDev = minor(inode->i_rdev) & 0x0f;

/* OK. - we should make some attempt at consistency. At least the H'ware
options should be set with a valid mode. We will make it that the LL
--- linux-2.5.68/sound/oss/dmasound/dmasound_paula.c Sun Apr 20 12:29:14 2003
+++ linux-m68k-2.5.68/sound/oss/dmasound/dmasound_paula.c Mon Apr 21 17:42:35 2003
@@ -21,6 +21,7 @@
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/soundcard.h>
+#include <linux/interrupt.h>

#include <asm/uaccess.h>
#include <asm/setup.h>
--- linux-2.5.68/sound/oss/dmasound/dmasound_q40.c Sun Apr 20 12:29:14 2003
+++ linux-m68k-2.5.68/sound/oss/dmasound/dmasound_q40.c Mon Apr 21 18:22:25 2003
@@ -18,6 +18,7 @@
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/soundcard.h>
+#include <linux/interrupt.h>

#include <asm/uaccess.h>
#include <asm/q40ints.h>
@@ -461,7 +462,7 @@
}
spin_lock_irqsave(&dmasound.lock, flags);
Q40PlayNextFrame(1);
- spin_unlock_irqrestore_flags(&dmasound.lock, flags);
+ spin_unlock_irqrestore(&dmasound.lock, flags);
}

static void Q40StereoInterrupt(int irq, void *dummy, struct pt_regs *fp)
Gr{oetje,eeting}s,
Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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