patch-2.1.6 linux/drivers/sound/lowlevel/awe_wave.c
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- Lines: 3243
- Date:
Fri Oct 25 13:06:37 1996
- Orig file:
v2.1.5/linux/drivers/sound/lowlevel/awe_wave.c
- Orig date:
Thu Jan 1 02:00:00 1970
diff -u --recursive --new-file v2.1.5/linux/drivers/sound/lowlevel/awe_wave.c linux/drivers/sound/lowlevel/awe_wave.c
@@ -0,0 +1,3242 @@
+/*================================================================
+ * awe_wave.c -- driver for AWE32 wave table synth
+ * version 0.2.0; Oct. 16, 1996
+ * copyright (c) 1996 by Takashi Iwai
+ *================================================================*/
+
+/* if you're using obsolete VoxWare 3.0.x on Linux 1.2.x (or FreeBSD),
+ * uncomment the following line
+ */
+/* #define AWE_OBSOLETE_VOXWARE */
+
+#include "lowlevel.h"
+
+#ifdef AWE_OBSOLETE_VOXWARE
+
+#include "sound_config.h"
+#if !defined(EXCLUDE_AWE32)
+#define CONFIG_AWE32_SYNTH
+#endif
+
+#else /* AWE_OBSOLETE_VOXWARE */
+
+#include "../sound_config.h"
+
+#endif /* AWE_OBSOLETE_VOXWARE */
+
+
+/*----------------------------------------------------------------*
+ * compile condition
+ *----------------------------------------------------------------*/
+
+/* initialize FM passthrough even without extended RAM */
+/*#define AWE_ALWAYS_INIT_FM*/
+
+/* debug on */
+#define AWE_DEBUG_ON
+
+/* verify checksum for uploading samples */
+#define AWE_CHECKSUM_DATA
+#define AWE_CHECKSUM_MEMORY
+
+/* disable interruption during sequencer operation */
+/*#define AWE_NEED_DISABLE_INTR*/
+
+/*----------------------------------------------------------------*/
+
+#ifdef CONFIG_AWE32_SYNTH
+
+#include "awe_hw.h"
+#include "awe_voice.h"
+
+#ifdef AWE_OBSOLETE_VOXWARE
+#include "tuning.h"
+#else
+#include "../tuning.h"
+#endif
+
+#ifdef linux
+# include <linux/ultrasound.h>
+#elif defined(__FreeBSD__)
+# include <machine/ultrasound.h>
+#endif
+
+
+/*----------------------------------------------------------------
+ * debug message
+ *----------------------------------------------------------------*/
+
+#ifdef AWE_DEBUG_ON
+static int debug_mode = 0;
+#define DEBUG(LVL,XXX) {if (debug_mode > LVL) { XXX; }}
+#define ERRMSG(XXX) {if (debug_mode) { XXX; }}
+#define FATALERR(XXX) XXX
+#else
+#define DEBUG(LVL,XXX) /**/
+#define ERRMSG(XXX) XXX
+#define FATALERR(XXX) XXX
+#endif
+
+/*----------------------------------------------------------------
+ * bank and voice record
+ *----------------------------------------------------------------*/
+
+/* bank record */
+typedef struct _awe_voice_list {
+ unsigned char bank, instr;
+ awe_voice_info v;
+ struct _awe_voice_list *next_instr;
+ struct _awe_voice_list *next_bank;
+} awe_voice_list;
+
+/* sample and information table */
+static awe_sample_info *samples;
+static awe_voice_list *infos;
+
+#define AWE_MAX_PRESETS 256
+#define AWE_DEFAULT_BANK 0
+
+/* preset table index */
+static awe_voice_list *preset_table[AWE_MAX_PRESETS];
+
+/*----------------------------------------------------------------
+ * voice table
+ *----------------------------------------------------------------*/
+
+#define AWE_FX_BYTES ((AWE_FX_END+7)/8)
+
+typedef struct _voice_info {
+ int state; /* status (on = 1, off = 0) */
+ int note; /* midi key (0-127) */
+ int velocity; /* midi velocity (0-127) */
+ int bender; /* midi pitchbend (-8192 - 8192) */
+ int bender_range; /* midi bender range (x100) */
+ int panning; /* panning (0-127) */
+ int main_vol; /* channel volume (0-127) */
+ int expression_vol; /* midi expression (0-127) */
+
+ /* EMU8000 parameters */
+ int apitch; /* pitch parameter */
+ int avol; /* volume parameter */
+
+ /* instrument parameters */
+ int bank; /* current tone bank */
+ int instr; /* current program */
+ awe_voice_list *vrec;
+ awe_voice_info *sample;
+
+ /* channel effects */
+ unsigned char fx_flags[AWE_FX_BYTES];
+ short fx[AWE_FX_END];
+} voice_info;
+
+static voice_info voices[AWE_MAX_VOICES];
+
+
+/*----------------------------------------------------------------
+ * global variables
+ *----------------------------------------------------------------*/
+
+/* awe32 base address (overwritten at initialization) */
+static int awe_base = 0;
+/* memory byte size (overwritten at initialization) */
+static long awe_mem_size = 0;
+
+/* maximum channels for playing */
+static int awe_max_voices = AWE_MAX_VOICES;
+
+static long free_mem_ptr = 0; /* free word byte size */
+static int free_info = 0; /* free info tables */
+static int last_info = 0; /* last loaded info index */
+static int free_sample = 0; /* free sample tables */
+static int last_sample = 0; /* last loaded sample index */
+static int loaded_once = 0; /* samples are loaded after init? */
+static unsigned short current_sf_id = 0; /* internal id */
+
+static int reverb_mode = 0; /* reverb mode */
+static int chorus_mode = 0; /* chorus mode */
+static unsigned short init_atten = 32; /* 12dB */
+
+static int awe_present = 0; /* awe device present? */
+static int awe_busy = 0; /* awe device opened? */
+
+static int awe_gus_bank = AWE_DEFAULT_BANK; /* GUS default bank number */
+
+
+static struct synth_info awe_info = {
+ "AWE32 Synth", /* name */
+ 0, /* device */
+ SYNTH_TYPE_SAMPLE, /* synth_type */
+ SAMPLE_TYPE_AWE32, /* synth_subtype */
+ 0, /* perc_mode (obsolete) */
+ AWE_MAX_VOICES, /* nr_voices */
+ 0, /* nr_drums (obsolete) */
+ AWE_MAX_INFOS /* instr_bank_size */
+};
+
+
+static struct voice_alloc_info *voice_alloc; /* set at initialization */
+
+
+/*----------------------------------------------------------------
+ * function prototypes
+ *----------------------------------------------------------------*/
+
+#ifndef AWE_OBSOLETE_VOXWARE
+static int awe_check_port(void);
+static void awe_request_region(void);
+static void awe_release_region(void);
+#endif
+
+static void awe_reset_samples(void);
+/* emu8000 chip i/o access */
+static void awe_poke(unsigned short cmd, unsigned short port, unsigned short data);
+static void awe_poke_dw(unsigned short cmd, unsigned short port, unsigned long data);
+static unsigned short awe_peek(unsigned short cmd, unsigned short port);
+static unsigned long awe_peek_dw(unsigned short cmd, unsigned short port);
+static void awe_wait(unsigned short delay);
+
+/* initialize emu8000 chip */
+static void awe_initialize(void);
+
+/* set voice parameters */
+static void awe_init_voice_info(awe_voice_info *vp);
+static void awe_init_voice_parm(awe_voice_parm *pp);
+static int freq_to_note(int freq);
+static int calc_rate_offset(int Hz);
+/*static int calc_parm_delay(int msec);*/
+static int calc_parm_hold(int msec);
+static int calc_parm_attack(int msec);
+static int calc_parm_decay(int msec);
+static int calc_parm_search(int msec, short *table);
+
+/* turn on/off note */
+static void awe_note_on(int voice);
+static void awe_note_off(int voice);
+static void awe_terminate(int voice);
+static void awe_exclusive_off(int voice);
+
+/* calculate voice parameters */
+static void awe_set_pitch(int voice);
+static void awe_set_volume(int voice);
+static void awe_set_pan(int voice, int forced);
+static void awe_fx_fmmod(int voice);
+static void awe_fx_tremfrq(int voice);
+static void awe_fx_fm2frq2(int voice);
+static void awe_fx_cutoff(int voice);
+static void awe_fx_initpitch(int voice);
+static void awe_calc_pitch(int voice);
+static void awe_calc_pitch_from_freq(int voice, int freq);
+static void awe_calc_volume(int voice);
+static void awe_voice_init(int voice, int inst_only);
+
+/* sequencer interface */
+static int awe_open(int dev, int mode);
+static void awe_close(int dev);
+static int awe_ioctl(int dev, unsigned int cmd, caddr_t arg);
+static int awe_kill_note(int dev, int voice, int note, int velocity);
+static int awe_start_note(int dev, int v, int note_num, int volume);
+static int awe_set_instr(int dev, int voice, int instr_no);
+static void awe_reset(int dev);
+static void awe_hw_control(int dev, unsigned char *event);
+static int awe_load_patch(int dev, int format, const char *addr,
+ int offs, int count, int pmgr_flag);
+static void awe_aftertouch(int dev, int voice, int pressure);
+static void awe_controller(int dev, int voice, int ctrl_num, int value);
+static void awe_panning(int dev, int voice, int value);
+static void awe_volume_method(int dev, int mode);
+static int awe_patchmgr(int dev, struct patmgr_info *rec);
+static void awe_bender(int dev, int voice, int value);
+static int awe_alloc(int dev, int chn, int note, struct voice_alloc_info *alloc);
+static void awe_setup_voice(int dev, int voice, int chn);
+
+/* hardware controls */
+static void awe_hw_gus_control(int dev, int cmd, unsigned char *event);
+static void awe_hw_awe_control(int dev, int cmd, unsigned char *event);
+
+/* voice search */
+static awe_voice_info *awe_search_voice(int voice, int note);
+static awe_voice_list *awe_search_instr(int bank, int preset);
+
+/* load / remove patches */
+static void awe_check_loaded(void);
+static int awe_load_info(awe_patch_info *patch, const char *addr);
+static int awe_load_data(awe_patch_info *patch, const char *addr);
+static int awe_load_guspatch(const char *addr, int offs, int size, int pmgr_flag);
+static int awe_write_wave_data(const char *addr, long offset, int size);
+static awe_voice_list *awe_get_removed_list(awe_voice_list *curp);
+static void awe_remove_samples(void);
+static short awe_set_sample(awe_voice_info *vp);
+
+/* lowlevel functions */
+static void awe_init_audio(void);
+static void awe_init_dma(void);
+static void awe_init_array(void);
+static void awe_send_array(unsigned short *data);
+static void awe_tweak(void);
+static void awe_init_fm(void);
+static int awe_open_dram_for_write(int offset);
+static int awe_open_dram_for_read(int offset);
+static void awe_open_dram_for_check(void);
+static void awe_close_dram(void);
+static void awe_close_dram_for_read(void);
+static void awe_write_dram(unsigned short c);
+static int awe_detect(void);
+static int awe_check_dram(void);
+static void awe_set_chorus_mode(int mode);
+static void awe_set_reverb_mode(int mode);
+
+#ifdef AWE_OBSOLETE_VOXWARE
+
+#define awe_check_port() 0 /* always false */
+#define awe_request_region() /* nothing */
+#define awe_release_region() /* nothing */
+
+#else /* AWE_OBSOLETE_VOXWARE */
+
+/* the following macros are osbolete */
+
+#define PERMANENT_MALLOC(type,var,size,memptr) \
+ var = (type)(sound_mem_blocks[sound_nblocks++] = vmalloc(size))
+#define RET_ERROR(err) -err
+
+#endif /* AWE_OBSOLETE_VOXWARE */
+
+
+#ifdef AWE_NEED_DISABLE_INTR
+#define DECL_INTR_FLAGS(x) unsigned long x
+#else
+#undef DISABLE_INTR
+#undef RESTORE_INTR
+#define DECL_INTR_FLAGS(x) /**/
+#define DISABLE_INTR(x) /**/
+#define RESTORE_INTR(x) /**/
+#endif
+
+
+/* macros for Linux and FreeBSD compatibility */
+
+#undef OUTW
+#undef COPY_FROM_USER
+#undef GET_BYTE_FROM_USER
+#undef GET_SHORT_FROM_USER
+#undef IOCTL_TO_USER
+
+#ifdef linux
+# define NO_DATA_ERR ENODATA
+# define OUTW(data, addr) outw(data, addr)
+# define COPY_FROM_USER(target, source, offs, count) \
+ copy_from_user( ((caddr_t)(target)),(source)+(offs),(count) )
+# define GET_BYTE_FROM_USER(target, addr, offs) \
+ get_user(target, (unsigned char*)&((addr)[offs]))
+# define GET_SHORT_FROM_USER(target, addr, offs) \
+ get_user(target, (unsigned short*)&((addr)[offs]))
+# define IOCTL_TO_USER(target, offs, source, count) \
+ copy_to_user ( ((caddr_t)(target)),(source)+(offs),(count) )
+# define BZERO(target,len) \
+ memset( (caddr_t)target, '\0', len )
+#elif defined(__FreeBSD__)
+# define NO_DATA_ERR EINVAL
+# define OUTW(data, addr) outw(addr, data)
+# define COPY_FROM_USER(target, source, offs, count) \
+ uiomove( ((caddr_t)(target)),(count),((struct uio *)(source)) )
+# define GET_BYTE_FROM_USER(target, addr, offs) \
+ uiomove( ((char*)&(target)), 1, ((struct uio *)(addr)) )
+# define GET_SHORT_FROM_USER(target, addr, offs) \
+ uiomove( ((char*)&(target)), 2, ((struct uio *)(addr)) )
+# define IOCTL_TO_USER(target, offs, source, count) \
+ memcpy( &((target)[offs]), (source), (count) )
+# define BZERO(target,len) \
+ bzero( (caddr_t)target, len )
+#endif
+
+
+/*----------------------------------------------------------------
+ * synth operation table
+ *----------------------------------------------------------------*/
+
+static struct synth_operations awe_operations =
+{
+ &awe_info,
+ 0,
+ SYNTH_TYPE_SAMPLE,
+ SAMPLE_TYPE_AWE32,
+ awe_open,
+ awe_close,
+ awe_ioctl,
+ awe_kill_note,
+ awe_start_note,
+ awe_set_instr,
+ awe_reset,
+ awe_hw_control,
+ awe_load_patch,
+ awe_aftertouch,
+ awe_controller,
+ awe_panning,
+ awe_volume_method,
+ awe_patchmgr,
+ awe_bender,
+ awe_alloc,
+ awe_setup_voice
+};
+
+
+
+/*================================================================
+ * attach / unload interface
+ *================================================================*/
+
+#ifdef AWE_OBSOLETE_VOXWARE
+long attach_awe_obsolete(long mem_start, struct address_info *hw_config)
+#else
+int attach_awe(void)
+#endif
+{
+ /* check presence of AWE32 card */
+ if (! awe_detect()) {
+ printk("AWE32: not detected\n");
+ return 0;
+ }
+
+ /* check AWE32 ports are available */
+ if (awe_check_port()) {
+ printk("AWE32: I/O area already used.\n");
+ return 0;
+ }
+
+ /* allocate sample tables */
+ PERMANENT_MALLOC(awe_sample_info *, samples,
+ AWE_MAX_SAMPLES * sizeof(awe_sample_info), mem_start);
+ PERMANENT_MALLOC(awe_voice_list *, infos,
+ AWE_MAX_INFOS * sizeof(awe_voice_list), mem_start);
+ if (samples == NULL || infos == NULL) {
+ printk("AWE32: can't allocate sample tables\n");
+ return 0;
+ }
+
+ if (num_synths >= MAX_SYNTH_DEV)
+ printk("AWE32 Error: too many synthesizers\n");
+ else {
+ voice_alloc = &awe_operations.alloc;
+ voice_alloc->max_voice = awe_max_voices;
+ synth_devs[num_synths++] = &awe_operations;
+ }
+
+ /* reserve I/O ports for awedrv */
+ awe_request_region();
+
+ /* clear all samples */
+ awe_reset_samples();
+
+ /* intialize AWE32 hardware */
+ awe_initialize();
+
+ printk("<AWE32 SynthCard (%dk)>\n", (int)awe_mem_size/1024);
+ sprintf(awe_info.name, "AWE32 Synth (%dk)", (int)awe_mem_size/1024);
+
+ /* set reverb & chorus modes */
+ awe_set_reverb_mode(reverb_mode);
+ awe_set_chorus_mode(chorus_mode);
+
+ awe_present = 1;
+
+#ifdef AWE_OBSOLETE_VOXWARE
+ return mem_start;
+#else
+ return 1;
+#endif
+}
+
+
+void unload_awe(void)
+{
+ if (awe_present) {
+ awe_reset_samples();
+ awe_release_region();
+ }
+}
+
+
+#ifdef AWE_OBSOLETE_VOXWARE
+int probe_awe_obsolete(struct address_info *hw_config)
+{
+ return 1;
+ /*return awe_detect();*/
+}
+
+#endif
+
+/*================================================================
+ * clear sample tables
+ *================================================================*/
+
+static void
+awe_reset_samples(void)
+{
+ int i;
+
+ /* free all bank tables */
+ for (i = 0; i < AWE_MAX_PRESETS; i++) {
+ preset_table[i] = NULL;
+ }
+
+ free_mem_ptr = 0;
+ last_sample = free_sample = 0;
+ last_info = free_info = 0;
+ current_sf_id = 0;
+ loaded_once = 0;
+}
+
+
+/*================================================================
+ * EMU register access
+ *================================================================*/
+
+/* select a given AWE32 pointer */
+#define awe_set_cmd(cmd) OUTW(cmd, awe_base + 0x802)
+#define awe_port(port) (awe_base - 0x620 + port)
+
+/* write 16bit data */
+static void
+awe_poke(unsigned short cmd, unsigned short port, unsigned short data)
+{
+ awe_set_cmd(cmd);
+ OUTW(data, awe_port(port));
+}
+
+/* write 32bit data */
+static void
+awe_poke_dw(unsigned short cmd, unsigned short port, unsigned long data)
+{
+ awe_set_cmd(cmd);
+ OUTW(data, awe_port(port)); /* write lower 16 bits */
+ OUTW(data >> 16, awe_port(port)+2); /* write higher 16 bits */
+}
+
+/* read 16bit data */
+static unsigned short
+awe_peek(unsigned short cmd, unsigned short port)
+{
+ unsigned short k;
+ awe_set_cmd(cmd);
+ k = inw(awe_port(port));
+ return k;
+}
+
+/* read 32bit data */
+static unsigned long
+awe_peek_dw(unsigned short cmd, unsigned short port)
+{
+ unsigned long k1, k2;
+ awe_set_cmd(cmd);
+ k1 = inw(awe_port(port));
+ k2 = inw(awe_port(port)+2);
+ k1 |= k2 << 16;
+ return k1;
+}
+
+/* wait delay number of AWE32 44100Hz clocks */
+static void
+awe_wait(unsigned short delay)
+{
+ unsigned short clock, target;
+ unsigned short port = awe_port(AWE_WC_Port);
+ int counter;
+
+ /* sample counter */
+ awe_set_cmd(AWE_WC_Cmd);
+ clock = (unsigned short)inw(port);
+ target = clock + delay;
+ counter = 0;
+ if (target < clock) {
+ for (; (unsigned short)inw(port) > target; counter++)
+ if (counter > 65536)
+ break;
+ }
+ for (; (unsigned short)inw(port) < target; counter++)
+ if (counter > 65536)
+ break;
+}
+
+
+#ifndef AWE_OBSOLETE_VOXWARE
+
+/*================================================================
+ * port check / request
+ * 0x620-622, 0xA20-A22, 0xE20-E22
+ *================================================================*/
+
+static int
+awe_check_port(void)
+{
+ return (check_region(awe_port(Data0), 3) ||
+ check_region(awe_port(Data1), 3) ||
+ check_region(awe_port(Data3), 3));
+}
+
+static void
+awe_request_region(void)
+{
+ request_region(awe_port(Data0), 3, "sound driver (AWE32)");
+ request_region(awe_port(Data1), 3, "sound driver (AWE32)");
+ request_region(awe_port(Data3), 3, "sound driver (AWE32)");
+}
+
+static void
+awe_release_region(void)
+{
+ release_region(awe_port(Data0), 3);
+ release_region(awe_port(Data1), 3);
+ release_region(awe_port(Data3), 3);
+}
+
+#endif /* !AWE_OBSOLETE_VOXWARE */
+
+
+/*================================================================
+ * AWE32 initialization
+ *================================================================*/
+static void
+awe_initialize(void)
+{
+ unsigned short data;
+ DECL_INTR_FLAGS(flags);
+
+ DEBUG(0,printk("AWE32: initializing..\n"));
+ DISABLE_INTR(flags);
+
+ /* check for an error condition */
+ data = awe_peek(AWE_U1);
+ if (!(data & 0x000F) == 0x000C) {
+ FATALERR(printk("AWE32: can't initialize AWE32\n"));
+ }
+
+ /* initialize hardware configuration */
+ awe_poke(AWE_HWCF1, 0x0059);
+ awe_poke(AWE_HWCF2, 0x0020);
+
+ /* disable audio output */
+ awe_poke(AWE_HWCF3, 0x0000);
+
+ /* initialize audio channels */
+ awe_init_audio();
+
+ /* initialize init array */
+ awe_init_dma();
+ awe_init_array();
+
+ /* check DRAM memory size */
+ awe_mem_size = awe_check_dram();
+
+ /* initialize the FM section of the AWE32 */
+ awe_init_fm();
+
+ /* set up voice envelopes */
+ awe_tweak();
+
+ /* enable audio */
+ awe_poke(AWE_HWCF3, 0x0004);
+
+ data = awe_peek(AWE_HWCF2);
+ if (~data & 0x40) {
+ FATALERR(printk("AWE32: Unable to initialize AWE32.\n"));
+ }
+
+ RESTORE_INTR(flags);
+}
+
+
+/*================================================================
+ * AWE32 voice parameters
+ *================================================================*/
+
+/* initialize voice_info record */
+static void
+awe_init_voice_info(awe_voice_info *vp)
+{
+ vp->sf_id = 0;
+ vp->sample = 0;
+ vp->rate_offset = 0;
+
+ vp->start = 0;
+ vp->end = 0;
+ vp->loopstart = 0;
+ vp->loopend = 0;
+ vp->mode = 0;
+ vp->root = 60;
+ vp->tune = 0;
+ vp->low = 0;
+ vp->high = 127;
+ vp->vellow = 0;
+ vp->velhigh = 127;
+
+ vp->fixkey = -1;
+ vp->fixvel = -1;
+ vp->fixpan = -1;
+ vp->pan = -1;
+
+ vp->exclusiveClass = 0;
+ vp->amplitude = 127;
+ vp->attenuation = 0;
+ vp->scaleTuning = 100;
+
+ awe_init_voice_parm(&vp->parm);
+}
+
+/* initialize voice_parm record:
+ * Env1/2: delay=0, attack=0, hold=0, sustain=0, decay=0, release=0.
+ * Vibrato and Tremolo effects are zero.
+ * Cutoff is maximum.
+ * Chorus and Reverb effects are zero.
+ */
+static void
+awe_init_voice_parm(awe_voice_parm *pp)
+{
+ pp->moddelay = 0x8000;
+ pp->modatkhld = 0x7f7f;
+ pp->moddcysus = 0x7f7f;
+ pp->modrelease = 0x807f;
+ pp->modkeyhold = 0;
+ pp->modkeydecay = 0;
+
+ pp->voldelay = 0x8000;
+ pp->volatkhld = 0x7f7f;
+ pp->voldcysus = 0x7f7f;
+ pp->volrelease = 0x807f;
+ pp->volkeyhold = 0;
+ pp->volkeydecay = 0;
+
+ pp->lfo1delay = 0x8000;
+ pp->lfo2delay = 0x8000;
+ pp->pefe = 0;
+
+ pp->fmmod = 0;
+ pp->tremfrq = 0;
+ pp->fm2frq2 = 0;
+
+ pp->cutoff = 0xff;
+ pp->filterQ = 0;
+
+ pp->chorus = 0;
+ pp->reverb = 0;
+}
+
+
+/* convert frequency mHz to abstract cents (= midi key * 100) */
+static int
+freq_to_note(int mHz)
+{
+ /* abscents = log(mHz/8176) / log(2) * 1200 */
+ unsigned long max_val = (unsigned long)0xffffffff / 10000;
+ int i, times;
+ unsigned long base;
+ unsigned long freq;
+ int note, tune;
+
+ if (mHz == 0)
+ return 0;
+ if (mHz < 0)
+ return 12799; /* maximum */
+
+ freq = mHz;
+ note = 0;
+ for (base = 8176 * 2; freq >= base; base *= 2) {
+ note += 12;
+ if (note >= 128) /* over maximum */
+ return 12799;
+ }
+ base /= 2;
+
+ /* to avoid overflow... */
+ times = 10000;
+ while (freq > max_val) {
+ max_val *= 10;
+ times /= 10;
+ base /= 10;
+ }
+
+ freq = freq * times / base;
+ for (i = 0; i < 12; i++) {
+ if (freq < semitone_tuning[i+1])
+ break;
+ note++;
+ }
+
+ tune = 0;
+ freq = freq * 10000 / semitone_tuning[i];
+ for (i = 0; i < 100; i++) {
+ if (freq < cent_tuning[i+1])
+ break;
+ tune++;
+ }
+
+ return note * 100 + tune;
+}
+
+
+/* convert Hz to AWE32 rate offset:
+ * sample pitch offset for the specified sample rate
+ * rate=44100 is no offset, each 4096 is 1 octave (twice).
+ * eg, when rate is 22050, this offset becomes -4096.
+ */
+static int
+calc_rate_offset(int Hz)
+{
+ /* offset = log(Hz / 44100) / log(2) * 4096 */
+ int freq, base, i;
+
+ /* maybe smaller than max (44100Hz) */
+ if (Hz <= 0 || Hz >= 44100) return 0;
+
+ base = 0;
+ for (freq = Hz * 2; freq < 44100; freq *= 2)
+ base++;
+ base *= 1200;
+
+ freq = 44100 * 10000 / (freq/2);
+ for (i = 0; i < 12; i++) {
+ if (freq < semitone_tuning[i+1])
+ break;
+ base += 100;
+ }
+ freq = freq * 10000 / semitone_tuning[i];
+ for (i = 0; i < 100; i++) {
+ if (freq < cent_tuning[i+1])
+ break;
+ base++;
+ }
+ return -base * 4096 / 1200;
+}
+
+
+/*----------------------------------------------------------------
+ * convert envelope time parameter to AWE32 raw parameter
+ *----------------------------------------------------------------*/
+
+/* attack & decay/release time table (mHz) */
+static short attack_time_tbl[128] = {
+32767, 5939, 3959, 2969, 2375, 1979, 1696, 1484, 1319, 1187, 1079, 989, 913, 848, 791, 742,
+ 698, 659, 625, 593, 565, 539, 516, 494, 475, 456, 439, 424, 409, 395, 383, 371,
+ 359, 344, 330, 316, 302, 290, 277, 266, 255, 244, 233, 224, 214, 205, 196, 188,
+ 180, 173, 165, 158, 152, 145, 139, 133, 127, 122, 117, 112, 107, 103, 98, 94,
+ 90, 86, 83, 79, 76, 73, 69, 67, 64, 61, 58, 56, 54, 51, 49, 47,
+ 45, 43, 41, 39, 38, 36, 35, 33, 32, 30, 29, 28, 27, 25, 24, 23,
+ 22, 21, 20, 20, 19, 18, 17, 16, 16, 15, 14, 14, 13, 13, 12, 11,
+ 11, 10, 10, 10, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 0,
+};
+
+static short decay_time_tbl[128] = {
+32767, 3651, 3508, 3371, 3239, 3113, 2991, 2874, 2761, 2653, 2550, 2450, 2354, 2262, 2174, 2089,
+ 2007, 1928, 1853, 1781, 1711, 1644, 1580, 1518, 1459, 1401, 1347, 1294, 1243, 1195, 1148, 1103,
+ 1060, 1018, 979, 940, 904, 868, 834, 802, 770, 740, 711, 683, 657, 631, 606, 582,
+ 560, 538, 517, 496, 477, 458, 440, 423, 407, 391, 375, 361, 347, 333, 320, 307,
+ 295, 284, 273, 262, 252, 242, 232, 223, 215, 206, 198, 190, 183, 176, 169, 162,
+ 156, 150, 144, 138, 133, 128, 123, 118, 113, 109, 104, 100, 96, 93, 89, 85,
+ 82, 79, 76, 73, 70, 67, 64, 62, 60, 57, 55, 53, 51, 49, 47, 45,
+ 43, 41, 40, 38, 37, 35, 34, 32, 31, 30, 29, 28, 27, 25, 24, 0,
+};
+
+/*
+static int
+calc_parm_delay(int msec)
+{
+ return (0x8000 - msec * 1000 / 725);
+}
+*/
+
+static int
+calc_parm_hold(int msec)
+{
+ int val = 0x7f - (unsigned char)(msec / 92);
+ if (val < 1) val = 1;
+ if (val > 127) val = 127;
+ return val;
+}
+
+static int
+calc_parm_attack(int msec)
+{
+ return calc_parm_search(msec, attack_time_tbl);
+}
+
+static int
+calc_parm_decay(int msec)
+{
+ return calc_parm_search(msec, decay_time_tbl);
+}
+
+static int
+calc_parm_search(int msec, short *table)
+{
+ int left = 0, right = 127, mid;
+ while (left < right) {
+ mid = (left + right) / 2;
+ if (msec < (int)table[mid])
+ left = mid + 1;
+ else
+ right = mid;
+ }
+ return left;
+}
+
+
+/*================================================================
+ * effects table
+ *================================================================*/
+
+/* set an effect value */
+#define FX_SET(v,type,value) \
+(voices[v].fx_flags[(type)/8] |= (1<<((type)%8)),\
+ voices[v].fx[type] = (value))
+/* check the effect value is set */
+#define FX_ON(v,type) (voices[v].fx_flags[(type)/8] & (1<<((type)%8)))
+
+#if 0
+#define FX_BYTE(v,type,value)\
+ (FX_ON(v,type) ? (unsigned char)voices[v].fx[type] :\
+ (unsigned char)(value))
+#define FX_WORD(v,type,value)\
+ (FX_ON(v,type) ? (unsigned short)voices[v].fx[type] :\
+ (unsigned short)(value))
+
+#else
+
+/* get byte effect value */
+static unsigned char FX_BYTE(int v, int type, unsigned char value)
+{
+ unsigned char tmp;
+ if (FX_ON(v,type))
+ tmp = (unsigned char)voices[v].fx[type];
+ else
+ tmp = value;
+ DEBUG(4,printk("AWE32: [-- byte(%d) = %x]\n", type, tmp));
+ return tmp;
+}
+
+/* get word effect value */
+static unsigned short FX_WORD(int v, int type, unsigned short value)
+{
+ unsigned short tmp;
+ if (FX_ON(v,type))
+ tmp = (unsigned short)voices[v].fx[type];
+ else
+ tmp = value;
+ DEBUG(4,printk("AWE32: [-- word(%d) = %x]\n", type, tmp));
+ return tmp;
+}
+
+#endif
+
+/* get word (upper=type1/lower=type2) effect value */
+static unsigned short FX_COMB(int v, int type1, int type2, unsigned short value)
+{
+ unsigned short tmp;
+ if (FX_ON(v, type1))
+ tmp = (unsigned short)(voices[v].fx[type1]) << 8;
+ else
+ tmp = value & 0xff00;
+ if (FX_ON(v, type2))
+ tmp |= (unsigned short)(voices[v].fx[type2]) & 0xff;
+ else
+ tmp |= value & 0xff;
+ DEBUG(4,printk("AWE32: [-- comb(%d/%d) = %x]\n", type1, type2, tmp));
+ return tmp;
+}
+
+/* address offset */
+static long
+FX_OFFSET(int voice, int lo, int hi)
+{
+ awe_voice_info *vp;
+ long addr;
+ if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+ return 0;
+
+ addr = 0;
+ if (FX_ON(voice, hi)) {
+ addr = (short)voices[voice].fx[hi];
+ addr = addr << 15;
+ }
+ if (FX_ON(voice, lo))
+ addr += (short)voices[voice].fx[lo];
+ if (!(vp->mode & (AWE_SAMPLE_8BITS<<6)))
+ addr /= 2;
+ return addr;
+}
+
+
+typedef void (*fx_affect_func)(int voice);
+static fx_affect_func fx_realtime[] = {
+ /* env1: delay, attack, hold, decay, release, sustain, pitch, cutoff*/
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ /* env2: delay, attack, hold, decay, release, sustain */
+ NULL, NULL, NULL, NULL, NULL, NULL,
+ /* lfo1: delay, freq, volume, pitch, cutoff */
+ NULL, awe_fx_tremfrq, awe_fx_tremfrq, awe_fx_fmmod, awe_fx_fmmod,
+ /* lfo2: delay, freq, pitch */
+ NULL, awe_fx_fm2frq2, awe_fx_fm2frq2,
+ /* global: initpitch, chorus, reverb, cutoff, filterQ */
+ awe_fx_initpitch, NULL, NULL, awe_fx_cutoff, NULL,
+ /* sample: start, loopstart, loopend */
+ NULL, NULL, NULL,
+};
+
+
+/*================================================================
+ * turn on/off sample
+ *================================================================*/
+
+static void
+awe_note_on(int voice)
+{
+ unsigned long temp;
+ long addr;
+ unsigned short tmp2;
+ awe_voice_info *vp;
+
+ /* A voice sample must assigned before calling */
+ if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+ return;
+
+ /* channel to be silent and idle */
+ awe_poke(AWE_DCYSUSV(voice), 0x0080);
+ awe_poke(AWE_VTFT(voice), 0);
+ awe_poke(AWE_CVCF(voice), 0);
+ awe_poke(AWE_PTRX(voice), 0);
+ awe_poke(AWE_CPF(voice), 0);
+
+ /* modulation & volume envelope */
+ awe_poke(AWE_ENVVAL(voice),
+ FX_WORD(voice, AWE_FX_ENV1_DELAY, vp->parm.moddelay));
+ awe_poke(AWE_ATKHLD(voice),
+ FX_COMB(voice, AWE_FX_ENV1_ATTACK, AWE_FX_ENV1_HOLD,
+ vp->parm.modatkhld));
+ awe_poke(AWE_DCYSUS(voice),
+ FX_COMB(voice, AWE_FX_ENV1_SUSTAIN, AWE_FX_ENV1_DECAY,
+ vp->parm.moddcysus));
+ awe_poke(AWE_ENVVOL(voice),
+ FX_WORD(voice, AWE_FX_ENV2_DELAY, vp->parm.voldelay));
+ awe_poke(AWE_ATKHLDV(voice),
+ FX_COMB(voice, AWE_FX_ENV2_ATTACK, AWE_FX_ENV2_HOLD,
+ vp->parm.volatkhld));
+ /* decay/sustain parameter for volume envelope must be set at last */
+
+ /* pitch offset */
+ awe_poke(AWE_IP(voice), voices[voice].apitch);
+ DEBUG(3,printk("AWE32: [-- pitch=%x]\n", voices[voice].apitch));
+
+ /* cutoff and volume */
+ tmp2 = FX_BYTE(voice, AWE_FX_CUTOFF, vp->parm.cutoff);
+ tmp2 = (tmp2 << 8) | voices[voice].avol;
+ awe_poke(AWE_IFATN(voice), tmp2);
+
+ /* modulation envelope heights */
+ awe_poke(AWE_PEFE(voice),
+ FX_COMB(voice, AWE_FX_ENV1_PITCH, AWE_FX_ENV1_CUTOFF,
+ vp->parm.pefe));
+
+ /* lfo1/2 delay */
+ awe_poke(AWE_LFO1VAL(voice),
+ FX_WORD(voice, AWE_FX_LFO1_DELAY, vp->parm.lfo1delay));
+ awe_poke(AWE_LFO2VAL(voice),
+ FX_WORD(voice, AWE_FX_LFO2_DELAY, vp->parm.lfo2delay));
+
+ /* lfo1 pitch & cutoff shift */
+ awe_poke(AWE_FMMOD(voice),
+ FX_COMB(voice, AWE_FX_LFO1_PITCH, AWE_FX_LFO1_CUTOFF,
+ vp->parm.fmmod));
+ /* lfo1 volume & freq */
+ awe_poke(AWE_TREMFRQ(voice),
+ FX_COMB(voice, AWE_FX_LFO1_VOLUME, AWE_FX_LFO1_FREQ,
+ vp->parm.tremfrq));
+ /* lfo2 pitch & freq */
+ awe_poke(AWE_FM2FRQ2(voice),
+ FX_COMB(voice, AWE_FX_LFO2_PITCH, AWE_FX_LFO2_FREQ,
+ vp->parm.fm2frq2));
+
+ /* pan & loop start */
+ awe_set_pan(voice, 1);
+
+ /* chorus & loop end (chorus 8bit, MSB) */
+ addr = vp->loopend - 1;
+ addr += FX_OFFSET(voice, AWE_FX_LOOP_END,
+ AWE_FX_COARSE_LOOP_END);
+ temp = FX_BYTE(voice, AWE_FX_CHORUS, vp->parm.chorus);
+ temp = (temp <<24) | (unsigned long)addr;
+ awe_poke_dw(AWE_CSL(voice), temp);
+
+ /* Q & current address (Q 4bit value, MSB) */
+ addr = vp->start - 1;
+ addr += FX_OFFSET(voice, AWE_FX_SAMPLE_START,
+ AWE_FX_COARSE_SAMPLE_START);
+ temp = FX_BYTE(voice, AWE_FX_FILTERQ, vp->parm.filterQ);
+ temp = (temp<<28) | (unsigned long)addr;
+ awe_poke_dw(AWE_CCCA(voice), temp);
+
+ /* reset volume */
+ awe_poke_dw(AWE_VTFT(voice), 0x0000FFFF);
+ awe_poke_dw(AWE_CVCF(voice), 0x0000FFFF);
+
+ /* turn on envelope */
+ awe_poke(AWE_DCYSUSV(voice),
+ FX_COMB(voice, AWE_FX_ENV2_SUSTAIN, AWE_FX_ENV2_DECAY,
+ vp->parm.voldcysus));
+ /* set chorus */
+ temp = FX_BYTE(voice, AWE_FX_REVERB, vp->parm.reverb);
+ temp = (awe_peek_dw(AWE_PTRX(voice)) & 0xffff0000) | (temp<<8);
+ awe_poke_dw(AWE_PTRX(voice), temp);
+ awe_poke_dw(AWE_CPF(voice), 0x40000000);
+
+ DEBUG(3,printk("AWE32: [-- start=%x loop=%x]\n",
+ (int)vp->start, (int)vp->loopstart));
+}
+
+/* turn off the voice */
+static void
+awe_note_off(int voice)
+{
+ awe_voice_info *vp;
+ unsigned short tmp;
+ if ((vp = voices[voice].sample) == NULL || !voices[voice].state)
+ return;
+ if (FX_ON(voice, AWE_FX_ENV1_RELEASE))
+ tmp = 0x8000 | voices[voice].fx[AWE_FX_ENV1_RELEASE];
+ else
+ tmp = vp->parm.modrelease;
+ awe_poke(AWE_DCYSUS(voice), tmp);
+ if (FX_ON(voice, AWE_FX_ENV2_RELEASE))
+ tmp = 0x8000 | voices[voice].fx[AWE_FX_ENV2_RELEASE];
+ else
+ tmp = vp->parm.volrelease;
+ awe_poke(AWE_DCYSUSV(voice), tmp);
+}
+
+/* force to terminate the voice (no releasing echo) */
+static void
+awe_terminate(int voice)
+{
+ awe_poke(AWE_DCYSUSV(voice), 0x807F);
+}
+
+
+/* turn off other voices with the same exclusive class (for drums) */
+static void
+awe_exclusive_off(int voice)
+{
+ int i, excls;
+
+ if (voices[voice].sample == NULL) /* no sample */
+ return;
+ excls = voices[voice].sample->exclusiveClass;
+ if (excls == 0) /* not exclusive */
+ return;
+
+ /* turn off voices with the same class */
+ for (i = 0; i < awe_max_voices; i++) {
+ if (i != voice && voices[voice].state &&
+ voices[i].sample &&
+ voices[i].sample->exclusiveClass == excls) {
+ DEBUG(4,printk("AWE32: [exoff(%d)]\n", i));
+ awe_note_off(i);
+ awe_voice_init(i, 1);
+ }
+ }
+}
+
+
+/*================================================================
+ * change the parameters of an audible voice
+ *================================================================*/
+
+/* change pitch */
+static void
+awe_set_pitch(int voice)
+{
+ if (!voices[voice].state) return;
+ awe_poke(AWE_IP(voice), voices[voice].apitch);
+}
+
+/* change volume */
+static void
+awe_set_volume(int voice)
+{
+ awe_voice_info *vp;
+ unsigned short tmp2;
+ if (!voices[voice].state) return;
+ if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+ return;
+ tmp2 = FX_BYTE(voice, AWE_FX_CUTOFF, vp->parm.cutoff);
+ tmp2 = (tmp2 << 8) | voices[voice].avol;
+ awe_poke(AWE_IFATN(voice), tmp2);
+}
+
+/* change pan; this could make a click noise.. */
+static void
+awe_set_pan(int voice, int forced)
+{
+ unsigned long temp;
+ long addr;
+ awe_voice_info *vp;
+
+ if (!voices[voice].state && !forced) return;
+ if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+ return;
+
+ /* pan & loop start (pan 8bit, MSB, 0:right, 0xff:left) */
+ if (vp->fixpan > 0) /* 0-127 */
+ temp = 255 - (int)vp->fixpan * 2;
+ else {
+ int pos = 0;
+ if (vp->pan >= 0) /* 0-127 */
+ pos = (int)vp->pan * 2 - 128;
+ pos += voices[voice].panning; /* -128 - 127 */
+ pos = 127 - pos;
+ if (pos < 0)
+ temp = 0;
+ else if (pos > 255)
+ temp = 255;
+ else
+ temp = pos;
+ }
+ addr = vp->loopstart - 1;
+ addr += FX_OFFSET(voice, AWE_FX_LOOP_START,
+ AWE_FX_COARSE_LOOP_START);
+ temp = (temp<<24) | (unsigned long)addr;
+ awe_poke_dw(AWE_PSST(voice), temp);
+}
+
+/* effects change during playing */
+static void
+awe_fx_fmmod(int voice)
+{
+ awe_voice_info *vp;
+ if (!voices[voice].state) return;
+ if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+ return;
+ awe_poke(AWE_FMMOD(voice),
+ FX_COMB(voice, AWE_FX_LFO1_PITCH, AWE_FX_LFO1_CUTOFF,
+ vp->parm.fmmod));
+}
+
+static void
+awe_fx_tremfrq(int voice)
+{
+ awe_voice_info *vp;
+ if (!voices[voice].state) return;
+ if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+ return;
+ awe_poke(AWE_TREMFRQ(voice),
+ FX_COMB(voice, AWE_FX_LFO1_VOLUME, AWE_FX_LFO1_FREQ,
+ vp->parm.tremfrq));
+}
+
+static void
+awe_fx_fm2frq2(int voice)
+{
+ awe_voice_info *vp;
+ if (!voices[voice].state) return;
+ if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+ return;
+ awe_poke(AWE_FM2FRQ2(voice),
+ FX_COMB(voice, AWE_FX_LFO2_PITCH, AWE_FX_LFO2_FREQ,
+ vp->parm.fm2frq2));
+}
+
+static void
+awe_fx_cutoff(int voice)
+{
+ unsigned short tmp2;
+ awe_voice_info *vp;
+ if (!voices[voice].state) return;
+ if ((vp = voices[voice].sample) == NULL || vp->index < 0)
+ return;
+ tmp2 = FX_BYTE(voice, AWE_FX_CUTOFF, vp->parm.cutoff);
+ tmp2 = (tmp2 << 8) | voices[voice].avol;
+ awe_poke(AWE_IFATN(voice), tmp2);
+}
+
+static void
+awe_fx_initpitch(int voice)
+{
+ if (!voices[voice].state) return;
+ if (FX_ON(voice, AWE_FX_INIT_PITCH)) {
+ DEBUG(3,printk("AWE32: initpitch ok\n"));
+ } else {
+ DEBUG(3,printk("AWE32: BAD initpitch %d\n", AWE_FX_INIT_PITCH));
+ }
+ awe_calc_pitch(voice);
+ awe_poke(AWE_IP(voice), voices[voice].apitch);
+}
+
+
+/*================================================================
+ * calculate pitch offset
+ *----------------------------------------------------------------
+ * 0xE000 is no pitch offset at 44100Hz sample.
+ * Every 4096 is one octave.
+ *================================================================*/
+
+static void
+awe_calc_pitch(int voice)
+{
+ voice_info *vp = &voices[voice];
+ awe_voice_info *ap;
+ int offset;
+
+ /* search voice information */
+ if ((ap = vp->sample) == NULL)
+ return;
+ if (ap->index < 0) {
+ if (awe_set_sample(ap) < 0)
+ return;
+ }
+
+ /* calculate offset */
+ if (ap->fixkey >= 0) {
+ DEBUG(3,printk("AWE32: p-> fixkey(%d) tune(%d)\n", ap->fixkey, ap->tune));
+ offset = (ap->fixkey - ap->root) * 4096 / 12;
+ } else {
+ DEBUG(3,printk("AWE32: p(%d)-> root(%d) tune(%d)\n", vp->note, ap->root, ap->tune));
+ offset = (vp->note - ap->root) * 4096 / 12;
+ DEBUG(4,printk("AWE32: p-> ofs=%d\n", offset));
+ }
+ offset += ap->tune * 4096 / 1200;
+ DEBUG(4,printk("AWE32: p-> tune+ ofs=%d\n", offset));
+ if (vp->bender != 0) {
+ DEBUG(3,printk("AWE32: p-> bend(%d) %d\n", voice, vp->bender));
+ /* (819200: 1 semitone) ==> (4096: 12 semitones) */
+ offset += vp->bender * vp->bender_range / 2400;
+ }
+ offset = (offset * ap->scaleTuning) / 100;
+ DEBUG(4,printk("AWE32: p-> scale* ofs=%d\n", offset));
+
+ /* add initial pitch correction */
+ if (FX_ON(voice, AWE_FX_INIT_PITCH)) {
+ DEBUG(3,printk("AWE32: fx_pitch(%d) %d\n", voice, vp->fx[AWE_FX_INIT_PITCH]));
+ offset += vp->fx[AWE_FX_INIT_PITCH];
+ }
+
+ /* 0xe000: root pitch */
+ vp->apitch = 0xe000 + ap->rate_offset + offset;
+ DEBUG(4,printk("AWE32: p-> sum aofs=%x, rate_ofs=%d\n", vp->apitch, ap->rate_offset));
+ if (vp->apitch > 0xffff)
+ vp->apitch = 0xffff;
+ if (vp->apitch < 0)
+ vp->apitch = 0;
+}
+
+
+static void
+awe_calc_pitch_from_freq(int voice, int freq)
+{
+ voice_info *vp = &voices[voice];
+ awe_voice_info *ap;
+ int offset;
+ int note;
+
+ /* search voice information */
+ if ((ap = vp->sample) == NULL)
+ return;
+ if (ap->index < 0) {
+ if (awe_set_sample(ap) < 0)
+ return;
+ }
+ note = freq_to_note(freq);
+ offset = (note - ap->root * 100 + ap->tune) * 4096 / 1200;
+ offset = (offset * ap->scaleTuning) / 100;
+ if (FX_ON(voice, AWE_FX_INIT_PITCH))
+ offset += vp->fx[AWE_FX_INIT_PITCH];
+ vp->apitch = 0xe000 + ap->rate_offset + offset;
+ if (vp->apitch > 0xffff)
+ vp->apitch = 0xffff;
+ if (vp->apitch < 0)
+ vp->apitch = 0;
+}
+
+/*================================================================
+ * calculate volume attenuation
+ *----------------------------------------------------------------
+ * Voice volume is controlled by volume attenuation parameter.
+ * So volume becomes maximum when avol is 0 (no attenuation), and
+ * minimum when 255 (-96dB or silence).
+ *================================================================*/
+
+static int vol_table[128] = {
+ 255,111,95,86,79,74,70,66,63,61,58,56,54,52,50,49,
+ 47,46,45,43,42,41,40,39,38,37,36,35,34,34,33,32,
+ 31,31,30,29,29,28,27,27,26,26,25,24,24,23,23,22,
+ 22,21,21,21,20,20,19,19,18,18,18,17,17,16,16,16,
+ 15,15,15,14,14,14,13,13,13,12,12,12,11,11,11,10,
+ 10,10,10,9,9,9,8,8,8,8,7,7,7,7,6,6,
+ 6,6,5,5,5,5,5,4,4,4,4,3,3,3,3,3,
+ 2,2,2,2,2,1,1,1,1,1,0,0,0,0,0,0,
+};
+
+static void
+awe_calc_volume(int voice)
+{
+ voice_info *vp = &voices[voice];
+ awe_voice_info *ap;
+ int vol;
+
+ /* search voice information */
+ if ((ap = vp->sample) == NULL)
+ return;
+
+ ap = vp->sample;
+ if (ap->index < 0) {
+ if (awe_set_sample(ap) < 0)
+ return;
+ }
+
+ if (vp->velocity < ap->vellow)
+ vp->velocity = ap->vellow;
+ else if (vp->velocity > ap->velhigh)
+ vp->velocity = ap->velhigh;
+
+ /* 0 - 127 */
+ vol = (vp->velocity * vp->main_vol * vp->expression_vol) / (127*127);
+ vol = vol * ap->amplitude / 127;
+ if (vol < 0) vol = 0;
+ if (vol > 127) vol = 127;
+
+ /* calc to attenuation */
+ vol = vol_table[vol];
+ vol = vol + (int)ap->attenuation + init_atten;
+ if (vol > 255) vol = 255;
+
+ vp->avol = vol;
+ DEBUG(3,printk("AWE32: [-- voice(%d) vol=%x]\n", voice, vol));
+}
+
+
+/*================================================================
+ * synth operation routines
+ *================================================================*/
+
+/* initialize the voice */
+static void
+awe_voice_init(int voice, int inst_only)
+{
+ if (! inst_only) {
+ /* clear voice parameters */
+ voices[voice].note = -1;
+ voices[voice].velocity = 0;
+ voices[voice].panning = 0; /* zero center */
+ voices[voice].bender = 0; /* zero tune skew */
+ voices[voice].bender_range = 200; /* sense * 100 */
+ voices[voice].main_vol = 127;
+ voices[voice].expression_vol = 127;
+ voices[voice].bank = AWE_DEFAULT_BANK;
+ voices[voice].instr = -1;
+ voices[voice].vrec = NULL;
+ voices[voice].sample = NULL;
+ }
+
+ /* clear voice mapping */
+ voices[voice].state = 0;
+ voice_alloc->map[voice] = 0;
+
+ /* emu8000 parameters */
+ voices[voice].apitch = 0;
+ voices[voice].avol = 255;
+
+ /* clear effects */
+ BZERO(voices[voice].fx_flags, sizeof(voices[voice].fx_flags));
+}
+
+
+/*----------------------------------------------------------------
+ * device open / close
+ *----------------------------------------------------------------*/
+
+/* open device:
+ * reset status of all voices, and clear sample position flag
+ */
+static int
+awe_open(int dev, int mode)
+{
+ if (awe_busy)
+ return RET_ERROR(EBUSY);
+
+ awe_busy = 1;
+ awe_reset(dev);
+
+ /* clear sample position flag */
+ loaded_once = 0;
+
+ /* set GUS bank to default */
+ awe_gus_bank = AWE_DEFAULT_BANK;
+ return 0;
+}
+
+
+/* close device:
+ * reset all voices again (terminate sounds)
+ */
+static void
+awe_close(int dev)
+{
+ awe_reset(dev);
+ awe_busy = 0;
+}
+
+
+/* sequencer I/O control:
+ */
+static int
+awe_ioctl(int dev, unsigned int cmd, caddr_t arg)
+{
+ switch (cmd) {
+ case SNDCTL_SYNTH_INFO:
+ awe_info.nr_voices = awe_max_voices;
+ IOCTL_TO_USER((char*)arg, 0, &awe_info, sizeof(awe_info));
+ return 0;
+ break;
+
+ case SNDCTL_SEQ_RESETSAMPLES:
+ awe_reset_samples();
+ awe_reset(dev); /* better to reset emu8k chip... */
+ return 0;
+ break;
+
+ case SNDCTL_SEQ_PERCMODE:
+ /* what's this? */
+ return 0;
+ break;
+
+ case SNDCTL_SYNTH_MEMAVL:
+ DEBUG(0,printk("AWE32: [ioctl memavl = %d]\n", (int)free_mem_ptr));
+ return awe_mem_size - free_mem_ptr*2;
+
+ default:
+ ERRMSG(printk("AWE32: unsupported ioctl %d\n", cmd));
+ return RET_ERROR(EINVAL);
+ }
+}
+
+
+/* kill a voice:
+ * not terminate, just release the voice.
+ */
+static int
+awe_kill_note(int dev, int voice, int note, int velocity)
+{
+ awe_voice_info *vp;
+ DECL_INTR_FLAGS(flags);
+
+ DEBUG(2,printk("AWE32: [off(%d)]\n", voice));
+ if (voice < 0 || voice >= awe_max_voices)
+ return RET_ERROR(EINVAL);
+ if ((vp = voices[voice].sample) == NULL)
+ return 0;
+
+ if (!(vp->mode & AWE_MODE_NORELEASE)) {
+ DISABLE_INTR(flags);
+ awe_note_off(voice);
+ RESTORE_INTR(flags);
+ }
+ awe_voice_init(voice, 1);
+ return 0;
+}
+
+
+/* search the note with the specified key range */
+static awe_voice_info *
+awe_search_voice(int voice, int note)
+{
+ awe_voice_list *rec;
+ int maxc;
+
+ for (rec = voices[voice].vrec, maxc = AWE_MAX_INFOS;
+ rec && maxc; rec = rec->next_instr, maxc--) {
+ if (rec->v.low <= note && note <= rec->v.high)
+ return &rec->v;
+ }
+ return NULL;
+}
+
+/* start a voice:
+ * if note is 255, identical with aftertouch function.
+ * Otherwise, start a voice with specified not and volume.
+ */
+static int
+awe_start_note(int dev, int v, int note_num, int volume)
+{
+ DECL_INTR_FLAGS(flags);
+
+ DEBUG(2,printk("AWE32: [on(%d) nt=%d vl=%d]\n", v, note_num, volume));
+ if (v < 0 || v >= awe_max_voices)
+ return RET_ERROR(EINVAL);
+ /* an instrument must be set before starting a note */
+ if (voices[v].vrec == NULL) {
+ DEBUG(1,printk("AWE32: [-- vrec is null]\n"));
+ return 0;
+ }
+
+ if (note_num == 255) {
+ /* dynamic volume change; sample is already assigned */
+ if (! voices[v].state || voices[v].sample == NULL)
+ return 0;
+ /* calculate volume parameter */
+ voices[v].velocity = volume;
+ awe_calc_volume(v);
+ DISABLE_INTR(flags);
+ awe_set_volume(v);
+ RESTORE_INTR(flags);
+ return 0;
+ }
+ /* assign a sample with the corresponding note */
+ if ((voices[v].sample = awe_search_voice(v, note_num)) == NULL) {
+ DEBUG(1,printk("AWE32: [-- sample is null]\n"));
+ return 0;
+ }
+ /* calculate pitch & volume parameters */
+ voices[v].note = note_num;
+ voices[v].velocity = volume;
+ awe_calc_pitch(v);
+ awe_calc_volume(v);
+
+ DISABLE_INTR(flags);
+ /* turn off other voices (for drums) */
+ awe_exclusive_off(v);
+ /* turn on the voice */
+ awe_note_on(v);
+ voices[v].state = 1; /* flag up */
+ RESTORE_INTR(flags);
+
+ return 0;
+}
+
+
+/* search instrument from preset table with the specified bank */
+static awe_voice_list *
+awe_search_instr(int bank, int preset)
+{
+ awe_voice_list *p;
+ int maxc;
+
+ for (maxc = AWE_MAX_INFOS, p = preset_table[preset];
+ p && maxc; p = p->next_bank, maxc--) {
+ if (p->bank == bank)
+ return p;
+ }
+ return NULL;
+}
+
+
+/* assign the instrument to a voice */
+static int
+awe_set_instr(int dev, int voice, int instr_no)
+{
+ awe_voice_list *rec;
+
+ if (voice < 0 || voice >= awe_max_voices)
+ return RET_ERROR(EINVAL);
+
+ if (instr_no < 0 || instr_no >= AWE_MAX_PRESETS)
+ return RET_ERROR(EINVAL);
+
+ if ((rec = awe_search_instr(voices[voice].bank, instr_no)) == NULL) {
+ /* if bank is not defined, use the default bank 0 */
+ if (voices[voice].bank != AWE_DEFAULT_BANK &&
+ (rec = awe_search_instr(AWE_DEFAULT_BANK, instr_no)) == NULL) {
+ DEBUG(1,printk("AWE32 Warning: can't find instrument %d\n", instr_no));
+ return 0;
+ }
+ }
+
+ voices[voice].instr = instr_no;
+ voices[voice].vrec = rec;
+ voices[voice].sample = NULL; /* not set yet */
+
+ return 0;
+}
+
+
+/* reset all voices; terminate sounds and initialize parameters */
+static void
+awe_reset(int dev)
+{
+ int i;
+ /* don't turn off voice 31 and 32. they are used also for FM voices */
+ for (i = 0; i < AWE_NORMAL_VOICES; i++) {
+ awe_terminate(i);
+ awe_voice_init(i, 0);
+ }
+ awe_init_fm();
+ awe_tweak();
+}
+
+
+/* hardware specific control:
+ * GUS specific and AWE32 specific controls are available.
+ */
+static void
+awe_hw_control(int dev, unsigned char *event)
+{
+ int cmd = event[2];
+ if (cmd & _AWE_MODE_FLAG)
+ awe_hw_awe_control(dev, cmd & _AWE_MODE_VALUE_MASK, event);
+ else
+ awe_hw_gus_control(dev, cmd & _AWE_MODE_VALUE_MASK, event);
+}
+
+/* GUS compatible controls */
+static void
+awe_hw_gus_control(int dev, int cmd, unsigned char *event)
+{
+ int voice;
+ unsigned short p1;
+ short p2;
+ int plong;
+ DECL_INTR_FLAGS(flags);
+
+ voice = event[3];
+ p1 = *(unsigned short *) &event[4];
+ p2 = *(short *) &event[6];
+ plong = *(int*) &event[4];
+
+ switch (cmd) {
+ case _GUS_NUMVOICES:
+ if (p1 >= awe_max_voices)
+ printk("AWE32: num_voices: voices out of range %d\n", p1);
+ break;
+ case _GUS_VOICESAMPLE:
+ if (voice < awe_max_voices)
+ awe_set_instr(dev, voice, p1);
+ break;
+
+ case _GUS_VOICEON:
+ if (voice < awe_max_voices) {
+ DISABLE_INTR(flags);
+ awe_note_on(voice);
+ RESTORE_INTR(flags);
+ }
+ break;
+
+ case _GUS_VOICEOFF:
+ if (voice < awe_max_voices) {
+ DISABLE_INTR(flags);
+ awe_note_off(voice);
+ RESTORE_INTR(flags);
+ }
+ break;
+
+ case _GUS_VOICEMODE:
+ /* not supported */
+ break;
+
+ case _GUS_VOICEBALA:
+ /* -128 to 127 */
+ if (voice < awe_max_voices)
+ awe_panning(dev, voice, (short)p1);
+ break;
+
+ case _GUS_VOICEFREQ:
+ if (voice < awe_max_voices)
+ awe_calc_pitch_from_freq(voice, plong);
+ break;
+
+ case _GUS_VOICEVOL:
+ case _GUS_VOICEVOL2:
+ /* not supported yet */
+ break;
+
+ case _GUS_RAMPRANGE:
+ case _GUS_RAMPRATE:
+ case _GUS_RAMPMODE:
+ case _GUS_RAMPON:
+ case _GUS_RAMPOFF:
+ /* volume ramping not supported */
+ break;
+
+ case _GUS_VOLUME_SCALE:
+ break;
+
+ case _GUS_VOICE_POS:
+ if (voice < awe_max_voices) {
+ FX_SET(voice, AWE_FX_SAMPLE_START, (short)(plong & 0x7fff));
+ FX_SET(voice, AWE_FX_COARSE_SAMPLE_START, (plong >> 15) & 0xffff);
+ }
+ break;
+ }
+}
+
+
+/* AWE32 specific controls */
+static void
+awe_hw_awe_control(int dev, int cmd, unsigned char *event)
+{
+ int voice;
+ unsigned short p1;
+ short p2;
+ int chn;
+
+ chn = event[1];
+ voice = event[3];
+ p1 = *(unsigned short *) &event[4];
+ p2 = *(short *) &event[6];
+
+
+#ifdef AWE_DEBUG_ON
+ switch (cmd) {
+ case _AWE_DEBUG_MODE:
+ debug_mode = p1;
+ printk("AWE32: debug mode = %d\n", debug_mode);
+ break;
+#endif
+ case _AWE_REVERB_MODE:
+ if (p1 <= 7) {
+ reverb_mode = p1;
+ DEBUG(0,printk("AWE32: reverb mode %d\n", reverb_mode));
+ awe_set_reverb_mode(reverb_mode);
+ }
+ break;
+
+ case _AWE_CHORUS_MODE:
+ if (p1 <= 7) {
+ chorus_mode = p1;
+ DEBUG(0,printk("AWE32: chorus mode %d\n", chorus_mode));
+ awe_set_chorus_mode(chorus_mode);
+ }
+ break;
+
+ case _AWE_REMOVE_LAST_SAMPLES:
+ DEBUG(0,printk("AWE32: remove last samples\n"));
+ awe_remove_samples();
+ break;
+
+ case _AWE_INITIALIZE_CHIP:
+ awe_initialize();
+ break;
+
+ case _AWE_SEND_EFFECT:
+ if (voice < awe_max_voices && p1 < AWE_FX_END) {
+ FX_SET(voice, p1, p2);
+ DEBUG(0,printk("AWE32: effects (%d) %d %d\n", voice, p1, voices[voice].fx[p1]));
+ if (fx_realtime[p1]) {
+ DEBUG(0,printk("AWE32: fx_realtime (%d)\n", voice));
+ fx_realtime[p1](voice);
+ }
+ }
+ break;
+
+ case _AWE_TERMINATE_CHANNEL:
+ if (voice < awe_max_voices) {
+ DEBUG(0,printk("AWE32: terminate (%d)\n", voice));
+ awe_terminate(voice);
+ awe_voice_init(voice, 1);
+ }
+ break;
+
+ case _AWE_TERMINATE_ALL:
+ DEBUG(0,printk("AWE32: terminate all\n"));
+ awe_reset(0);
+ break;
+
+ case _AWE_INITIAL_VOLUME:
+ DEBUG(0,printk("AWE32: init attenuation %d\n", p1));
+ init_atten = p1;
+ break;
+
+ case _AWE_SET_GUS_BANK:
+ DEBUG(0,printk("AWE32: set gus bank %d\n", p1));
+ awe_gus_bank = p1;
+ break;
+
+ default:
+ DEBUG(0,printk("AWE32: hw control cmd=%d voice=%d\n", cmd, voice));
+ break;
+ }
+}
+
+
+/*----------------------------------------------------------------
+ * load a sound patch:
+ * three types of patches are accepted: AWE, GUS, and SYSEX.
+ *----------------------------------------------------------------*/
+
+static int
+awe_load_patch(int dev, int format, const char *addr,
+ int offs, int count, int pmgr_flag)
+{
+ awe_patch_info patch;
+ int rc = 0;
+
+ if (format == GUS_PATCH) {
+ return awe_load_guspatch(addr, offs, count, pmgr_flag);
+ } else if (format == SYSEX_PATCH) {
+ /* no system exclusive message supported yet */
+ return 0;
+ } else if (format != AWE_PATCH) {
+ FATALERR(printk("AWE32 Error: Invalid patch format (key) 0x%x\n", format));
+ return RET_ERROR(EINVAL);
+ }
+
+ if (count < sizeof(awe_patch_info)) {
+ FATALERR(printk("AWE32 Error: Patch header too short\n"));
+ return RET_ERROR(EINVAL);
+ }
+ COPY_FROM_USER(((char*)&patch) + offs, addr, offs,
+ sizeof(awe_patch_info) - offs);
+
+ count -= sizeof(awe_patch_info);
+ if (count < patch.len) {
+ FATALERR(printk("AWE32 Warning: Patch record too short (%d<%d)\n",
+ count, (int)patch.len));
+ patch.len = count;
+ }
+
+ switch (patch.type) {
+ case AWE_LOAD_INFO:
+ rc = awe_load_info(&patch, addr);
+ break;
+
+ case AWE_LOAD_DATA:
+ rc = awe_load_data(&patch, addr);
+ /*
+ if (!pmgr_flag && rc == 0)
+ pmgr_inform(dev, PM_E_PATCH_LOADED, instr, free_sample, 0, 0);
+ */
+ break;
+
+ default:
+ FATALERR(printk("AWE32 Error: unknown patch format type %d\n",
+ patch.type));
+ rc = RET_ERROR(EINVAL);
+ }
+
+ return rc;
+}
+
+
+/* load voice information data */
+static int
+awe_load_info(awe_patch_info *patch, const char *addr)
+{
+ awe_voice_list *rec, *curp;
+ long offset;
+ short i, nvoices;
+ unsigned char bank, instr;
+ int total_size;
+
+ if (patch->len < sizeof(awe_voice_rec)) {
+ FATALERR(printk("AWE32 Error: invalid patch info length\n"));
+ return RET_ERROR(EINVAL);
+ }
+
+ offset = sizeof(awe_patch_info);
+ GET_BYTE_FROM_USER(bank, addr, offset); offset++;
+ GET_BYTE_FROM_USER(instr, addr, offset); offset++;
+ GET_SHORT_FROM_USER(nvoices, addr, offset); offset+=2;
+
+ if (nvoices <= 0 || nvoices >= 100) {
+ FATALERR(printk("AWE32 Error: Illegal voice number %d\n", nvoices));
+ return RET_ERROR(EINVAL);
+ }
+ if (free_info + nvoices > AWE_MAX_INFOS) {
+ ERRMSG(printk("AWE32 Error: Too many voice informations\n"));
+ return RET_ERROR(ENOSPC);
+ }
+
+ total_size = sizeof(awe_voice_rec) + sizeof(awe_voice_info) * nvoices;
+ if (patch->len < total_size) {
+ ERRMSG(printk("AWE32 Error: patch length(%d) is smaller than nvoices(%d)\n",
+ (int)patch->len, nvoices));
+ return RET_ERROR(EINVAL);
+ }
+
+ curp = awe_search_instr(bank, instr);
+ for (i = 0; i < nvoices; i++) {
+ rec = &infos[free_info + i];
+
+ rec->bank = bank;
+ rec->instr = instr;
+ if (i < nvoices - 1)
+ rec->next_instr = rec + 1;
+ else
+ rec->next_instr = curp;
+ rec->next_bank = NULL;
+
+ /* copy awe_voice_info parameters */
+ COPY_FROM_USER(&rec->v, addr, offset, sizeof(awe_voice_info));
+ offset += sizeof(awe_voice_info);
+ rec->v.sf_id = current_sf_id;
+ if (rec->v.mode & AWE_MODE_INIT_PARM)
+ awe_init_voice_parm(&rec->v.parm);
+ awe_set_sample(&rec->v);
+ }
+
+ /* prepend to top of the list */
+ infos[free_info].next_bank = preset_table[instr];
+ preset_table[instr] = &infos[free_info];
+ free_info += nvoices;
+
+ return 0;
+}
+
+
+/* load wave sample data */
+static int
+awe_load_data(awe_patch_info *patch, const char *addr)
+{
+ long offset;
+ int size;
+ int rc;
+
+ if (free_sample >= AWE_MAX_SAMPLES) {
+ ERRMSG(printk("AWE32 Error: Sample table full\n"));
+ return RET_ERROR(ENOSPC);
+ }
+
+ size = (patch->len - sizeof(awe_sample_info)) / 2;
+ offset = sizeof(awe_patch_info);
+ COPY_FROM_USER(&samples[free_sample], addr, offset,
+ sizeof(awe_sample_info));
+ offset += sizeof(awe_sample_info);
+ if (size != samples[free_sample].size) {
+ ERRMSG(printk("AWE32 Warning: sample size differed (%d != %d)\n",
+ (int)samples[free_sample].size, (int)size));
+ samples[free_sample].size = size;
+ }
+ if (samples[free_sample].size > 0)
+ if ((rc = awe_write_wave_data(addr, offset, size)) != 0)
+ return rc;
+
+ awe_check_loaded();
+ samples[free_sample].sf_id = current_sf_id;
+
+ free_sample++;
+ return 0;
+}
+
+/* check the other samples are already loaded */
+static void
+awe_check_loaded(void)
+{
+ if (!loaded_once) {
+ /* it's the first time */
+ last_sample = free_sample;
+ last_info = free_info;
+ current_sf_id++;
+ loaded_once = 1;
+ }
+}
+
+
+#define BLANK_LOOP_START 8
+#define BLANK_LOOP_END 40
+#define BLANK_LOOP_SIZE 48
+
+/* loading onto memory */
+static int
+awe_write_wave_data(const char *addr, long offset, int size)
+{
+ awe_sample_info *sp = &samples[free_sample];
+ int i, truesize;
+ int rc;
+ unsigned long csum1, csum2;
+ DECL_INTR_FLAGS(flags);
+
+ /* be sure loop points start < end */
+ if (sp->loopstart > sp->loopend) {
+ long tmp = sp->loopstart;
+ sp->loopstart = sp->loopend;
+ sp->loopend = tmp;
+ }
+
+ /* compute true data size to be loaded */
+ truesize = size;
+ if (sp->mode_flags & AWE_SAMPLE_BIDIR_LOOP)
+ truesize += sp->loopend - sp->loopstart;
+ if (sp->mode_flags & AWE_SAMPLE_NO_BLANK)
+ truesize += BLANK_LOOP_SIZE;
+ if (size > 0 && free_mem_ptr + truesize >= awe_mem_size/2) {
+ ERRMSG(printk("AWE32 Error: Sample memory full\n"));
+ return RET_ERROR(ENOSPC);
+ }
+
+ /* recalculate address offset */
+ sp->end -= sp->start;
+ sp->loopstart -= sp->start;
+ sp->loopend -= sp->start;
+ sp->size = truesize;
+
+ sp->start = free_mem_ptr + AWE_DRAM_OFFSET;
+ sp->end += free_mem_ptr + AWE_DRAM_OFFSET;
+ sp->loopstart += free_mem_ptr + AWE_DRAM_OFFSET;
+ sp->loopend += free_mem_ptr + AWE_DRAM_OFFSET;
+
+ DISABLE_INTR(flags);
+ if ((rc = awe_open_dram_for_write(free_mem_ptr)) != 0) {
+ RESTORE_INTR(flags);
+ return rc;
+ }
+
+ csum1 = 0;
+ for (i = 0; i < size; i++) {
+ unsigned char cc;
+ unsigned short c;
+ if (sp->mode_flags & AWE_SAMPLE_8BITS) {
+ GET_BYTE_FROM_USER(cc, addr, offset); offset++;
+ c = cc << 8; /* convert 8bit -> 16bit */
+ } else {
+ GET_SHORT_FROM_USER(c, addr, offset); offset += 2;
+ }
+ if (sp->mode_flags & AWE_SAMPLE_UNSIGNED)
+ c ^= 0x8000; /* unsigned -> signed */
+ csum1 += c;
+ awe_write_dram(c);
+ if (i == sp->loopend &&
+ (sp->mode_flags & AWE_SAMPLE_BIDIR_LOOP)) {
+ int looplen = sp->loopend - sp->loopstart;
+ /* copy reverse loop */
+ int k;
+ for (k = 0; k < looplen; k++) {
+ if (sp->mode_flags & AWE_SAMPLE_8BITS) {
+ GET_BYTE_FROM_USER(cc, addr, offset-k);
+ c = cc << 8;
+ } else {
+ GET_SHORT_FROM_USER(c, addr, offset-k*2);
+ }
+ if (sp->mode_flags & AWE_SAMPLE_UNSIGNED)
+ c ^= 0x8000;
+ awe_write_dram(c);
+ }
+ }
+ }
+
+ /* if no blank loop is attached in the sample, add it */
+ if (sp->mode_flags & AWE_SAMPLE_NO_BLANK) {
+ for (i = 0; i < BLANK_LOOP_SIZE; i++)
+ awe_write_dram(0);
+ if (sp->mode_flags & AWE_SAMPLE_SINGLESHOT) {
+ sp->loopstart = sp->end + BLANK_LOOP_START;
+ sp->loopend = sp->end + BLANK_LOOP_END;
+ }
+ sp->size += BLANK_LOOP_SIZE;
+ }
+
+ awe_close_dram();
+ RESTORE_INTR(flags);
+ if (sp->checksum_flag) {
+#ifdef AWE_CHECKSUM_DATA
+ if (sp->checksum_flag != 2 && csum1 != sp->checksum) {
+ ERRMSG(printk("AWE32: [%d] checksum mismatch on data %x:%x\n",
+ free_sample,
+ (int)samples[free_sample].checksum,
+ (int)csum1));
+ return RET_ERROR(NO_DATA_ERR);
+ }
+#endif /* AWE_CHECKSUM_DATA */
+#ifdef AWE_CHECKSUM_MEMORY
+ DISABLE_INTR(flags);
+ if (awe_open_dram_for_read(free_mem_ptr) == 0) {
+ csum2 = 0;
+ for (i = 0; i < size; i++) {
+ unsigned short c;
+ c = awe_peek(AWE_SMLD);
+ csum2 += c;
+ }
+ awe_close_dram_for_read();
+ if (csum2 != samples[free_sample].checksum) {
+ RESTORE_INTR(flags);
+ ERRMSG(printk("AWE32: [%d] checksum mismatch on DRAM %x:%x\n",
+ free_sample,
+ (int)samples[free_sample].checksum,
+ (int)csum2));
+ return RET_ERROR(NO_DATA_ERR);
+ }
+ }
+ RESTORE_INTR(flags);
+#endif /* AWE_CHECKSUM_MEMORY */
+ }
+ free_mem_ptr += sp->size;
+
+ /* re-initialize FM passthrough */
+ DISABLE_INTR(flags);
+ awe_init_fm();
+ awe_tweak();
+ RESTORE_INTR(flags);
+
+ return 0;
+}
+
+
+/* calculate GUS envelope time:
+ * is this correct? i have no idea..
+ */
+static int
+calc_gus_envelope_time(int rate, int start, int end)
+{
+ int r, p, t;
+ r = (3 - ((rate >> 6) & 3)) * 3;
+ p = rate & 0x3f;
+ t = end - start;
+ if (t < 0) t = -t;
+ if (13 > r)
+ t = t << (13 - r);
+ else
+ t = t >> (r - 13);
+ return (t * 10) / (p * 441);
+}
+
+#define calc_gus_sustain(val) (0x7f - vol_table[(val)/2])
+#define calc_gus_attenuation(val) vol_table[(val)/2]
+
+/* load GUS patch */
+static int
+awe_load_guspatch(const char *addr, int offs, int size, int pmgr_flag)
+{
+ struct patch_info patch;
+ awe_voice_list *rec, *curp;
+ long sizeof_patch;
+ int note;
+ int rc;
+
+ sizeof_patch = (long)&patch.data[0] - (long)&patch; /* header size */
+ if (free_sample >= AWE_MAX_SAMPLES) {
+ ERRMSG(printk("AWE32 Error: Sample table full\n"));
+ return RET_ERROR(ENOSPC);
+ }
+ if (free_info >= AWE_MAX_INFOS) {
+ ERRMSG(printk("AWE32 Error: Too many voice informations\n"));
+ return RET_ERROR(ENOSPC);
+ }
+ if (size < sizeof_patch) {
+ ERRMSG(printk("AWE32 Error: Patch header too short\n"));
+ return RET_ERROR(EINVAL);
+ }
+ COPY_FROM_USER(((char*)&patch) + offs, addr, offs, sizeof_patch - offs);
+ size -= sizeof_patch;
+ if (size < patch.len) {
+ FATALERR(printk("AWE32 Warning: Patch record too short (%d<%d)\n",
+ size, (int)patch.len));
+ patch.len = size;
+ }
+
+ samples[free_sample].sf_id = 0;
+ samples[free_sample].sample = free_sample;
+ samples[free_sample].start = 0;
+ samples[free_sample].end = patch.len;
+ samples[free_sample].loopstart = patch.loop_start;
+ samples[free_sample].loopend = patch.loop_end;
+ samples[free_sample].size = patch.len;
+
+ /* set up mode flags */
+ samples[free_sample].mode_flags = 0;
+ if (!(patch.mode & WAVE_16_BITS))
+ samples[free_sample].mode_flags |= AWE_SAMPLE_8BITS;
+ if (patch.mode & WAVE_UNSIGNED)
+ samples[free_sample].mode_flags |= AWE_SAMPLE_UNSIGNED;
+ samples[free_sample].mode_flags |= AWE_SAMPLE_NO_BLANK;
+ if (!(patch.mode & (WAVE_LOOPING|WAVE_BIDIR_LOOP)))
+ samples[free_sample].mode_flags |= AWE_SAMPLE_SINGLESHOT;
+ if (patch.mode & WAVE_BIDIR_LOOP)
+ samples[free_sample].mode_flags |= AWE_SAMPLE_BIDIR_LOOP;
+
+ DEBUG(0,printk("AWE32: [sample %d mode %x]\n", patch.instr_no,
+ samples[free_sample].mode_flags));
+ if (patch.mode & WAVE_16_BITS) {
+ /* convert to word offsets */
+ samples[free_sample].size /= 2;
+ samples[free_sample].end /= 2;
+ samples[free_sample].loopstart /= 2;
+ samples[free_sample].loopend /= 2;
+ }
+ samples[free_sample].checksum_flag = 0;
+ samples[free_sample].checksum = 0;
+
+ if ((rc = awe_write_wave_data(addr, sizeof_patch,
+ samples[free_sample].size)) != 0)
+ return rc;
+
+ awe_check_loaded();
+ samples[free_sample].sf_id = current_sf_id;
+ free_sample++;
+
+ /* set up voice info */
+ rec = &infos[free_info];
+ awe_init_voice_info(&rec->v);
+ rec->v.sf_id = current_sf_id;
+ rec->v.sample = free_sample - 1; /* the last sample */
+ rec->v.rate_offset = calc_rate_offset(patch.base_freq);
+ note = freq_to_note(patch.base_note);
+ rec->v.root = note / 100;
+ rec->v.tune = -(note % 100);
+ rec->v.low = freq_to_note(patch.low_note) / 100;
+ rec->v.high = freq_to_note(patch.high_note) / 100;
+ DEBUG(1,printk("AWE32: [gus base offset=%d, note=%d, range=%d-%d(%d-%d)]\n",
+ rec->v.rate_offset, note,
+ rec->v.low, rec->v.high,
+ patch.low_note, patch.high_note));
+ /* panning position; -128 - 127 => 0-127 */
+ rec->v.pan = (patch.panning + 128) / 2;
+
+ /* detuning is ignored */
+ /* 6points volume envelope */
+ if (patch.mode & WAVE_ENVELOPES) {
+ int attack, hold, decay, release;
+ attack = calc_gus_envelope_time
+ (patch.env_rate[0], 0, patch.env_offset[0]);
+ hold = calc_gus_envelope_time
+ (patch.env_rate[1], patch.env_offset[0],
+ patch.env_offset[1]);
+ decay = calc_gus_envelope_time
+ (patch.env_rate[2], patch.env_offset[1],
+ patch.env_offset[2]);
+ release = calc_gus_envelope_time
+ (patch.env_rate[3], patch.env_offset[1],
+ patch.env_offset[4]);
+ release += calc_gus_envelope_time
+ (patch.env_rate[4], patch.env_offset[3],
+ patch.env_offset[4]);
+ release += calc_gus_envelope_time
+ (patch.env_rate[5], patch.env_offset[4],
+ patch.env_offset[5]);
+ rec->v.parm.volatkhld = (calc_parm_attack(attack) << 8) |
+ calc_parm_hold(hold);
+ rec->v.parm.voldcysus = (calc_gus_sustain(patch.env_offset[2]) << 8) |
+ calc_parm_decay(decay);
+ rec->v.parm.volrelease = 0x8000 | calc_parm_decay(release);
+ DEBUG(2,printk("AWE32: [gusenv atk=%d, hld=%d, dcy=%d, rel=%d]\n", attack, hold, decay, release));
+ rec->v.attenuation = calc_gus_attenuation(patch.env_offset[0]);
+ }
+
+ /* tremolo effect */
+ if (patch.mode & WAVE_TREMOLO) {
+ int rate = (patch.tremolo_rate * 1000 / 38) / 42;
+ rec->v.parm.tremfrq = ((patch.tremolo_depth / 2) << 8) | rate;
+ DEBUG(2,printk("AWE32: [gusenv tremolo rate=%d, dep=%d, tremfrq=%x]\n",
+ patch.tremolo_rate, patch.tremolo_depth,
+ rec->v.parm.tremfrq));
+ }
+ /* vibrato effect */
+ if (patch.mode & WAVE_VIBRATO) {
+ int rate = (patch.vibrato_rate * 1000 / 38) / 42;
+ rec->v.parm.fm2frq2 = ((patch.vibrato_depth / 6) << 8) | rate;
+ DEBUG(2,printk("AWE32: [gusenv vibrato rate=%d, dep=%d, tremfrq=%x]\n",
+ patch.tremolo_rate, patch.tremolo_depth,
+ rec->v.parm.tremfrq));
+ }
+
+ /* scale_freq, scale_factor, volume, and fractions not implemented */
+
+ /* set the voice index */
+ awe_set_sample(&rec->v);
+
+ /* prepend to top of the list */
+ curp = awe_search_instr(awe_gus_bank, patch.instr_no);
+ rec->bank = awe_gus_bank;
+ rec->instr = patch.instr_no;
+ rec->next_instr = curp;
+ rec->next_bank = preset_table[rec->instr];
+ preset_table[rec->instr] = rec;
+ free_info++;
+
+ return 0;
+}
+
+
+/* remove samples with current sf_id from instrument list */
+static awe_voice_list *
+awe_get_removed_list(awe_voice_list *curp)
+{
+ awe_voice_list *lastp, **prevp;
+ int maxc;
+ lastp = curp;
+ prevp = &lastp;
+ for (maxc = AWE_MAX_INFOS;
+ curp && maxc; curp = curp->next_instr, maxc--) {
+ if (curp->v.sf_id == current_sf_id)
+ *prevp = curp->next_instr;
+ else
+ prevp = &curp->next_instr;
+ }
+ return lastp;
+}
+
+
+/* remove last loaded samples */
+static void
+awe_remove_samples(void)
+{
+ awe_voice_list **prevp, *p, *nextp;
+ int maxc;
+ int i;
+
+ if (last_sample == free_sample && last_info == free_info)
+ return;
+
+ /* remove the records from preset table */
+ for (i = 0; i < AWE_MAX_PRESETS; i++) {
+ prevp = &preset_table[i];
+ for (maxc = AWE_MAX_INFOS, p = preset_table[i];
+ p && maxc; p = nextp, maxc--) {
+ nextp = p->next_bank;
+ p = awe_get_removed_list(p);
+ if (p == NULL)
+ *prevp = nextp;
+ else {
+ *prevp = p;
+ prevp = &p->next_bank;
+ }
+ }
+ }
+
+ for (i = last_sample; i < free_sample; i++)
+ free_mem_ptr -= samples[i].size;
+
+ free_sample = last_sample;
+ free_info = last_info;
+ current_sf_id--;
+ loaded_once = 0;
+}
+
+
+/* search the specified sample */
+static short
+awe_set_sample(awe_voice_info *vp)
+{
+ int i;
+ for (i = 0; i < free_sample; i++) {
+ if (samples[i].sf_id == vp->sf_id &&
+ samples[i].sample == vp->sample) {
+ /* set the actual sample offsets */
+ vp->start += samples[i].start;
+ vp->end += samples[i].end;
+ vp->loopstart += samples[i].loopstart;
+ vp->loopend += samples[i].loopend;
+ /* copy mode flags */
+ vp->mode |= (samples[i].mode_flags << 6);
+ /* set index */
+ vp->index = i;
+ return i;
+ }
+ }
+ return -1;
+}
+
+
+/* voice pressure change */
+static void
+awe_aftertouch(int dev, int voice, int pressure)
+{
+ DECL_INTR_FLAGS(flags);
+
+ DEBUG(2,printk("AWE32: [after(%d) %d]\n", voice, pressure));
+ if (voice < 0 || voice >= awe_max_voices)
+ return;
+ voices[voice].velocity = pressure;
+ awe_calc_volume(voice);
+ DISABLE_INTR(flags);
+ awe_set_volume(voice);
+ RESTORE_INTR(flags);
+}
+
+
+/* voice control change */
+static void
+awe_controller(int dev, int voice, int ctrl_num, int value)
+{
+ DECL_INTR_FLAGS(flags);
+
+ if (voice < 0 || voice >= awe_max_voices)
+ return;
+
+ switch (ctrl_num) {
+ case CTL_BANK_SELECT:
+ DEBUG(2,printk("AWE32: [bank(%d) %d]\n", voice, value));
+ voices[voice].bank = value;
+ break;
+
+ case CTRL_PITCH_BENDER:
+ DEBUG(2,printk("AWE32: [bend(%d) %d]\n", voice, value));
+ /* zero centered */
+ voices[voice].bender = value;
+ awe_calc_pitch(voice);
+ DISABLE_INTR(flags);
+ awe_set_pitch(voice);
+ RESTORE_INTR(flags);
+ break;
+
+ case CTRL_PITCH_BENDER_RANGE:
+ DEBUG(2,printk("AWE32: [range(%d) %d]\n", voice, value));
+ /* sense x 100 */
+ voices[voice].bender_range = value;
+ /* no audible pitch change yet.. */
+ break;
+
+ case CTL_EXPRESSION:
+ value /= 128;
+ case CTRL_EXPRESSION:
+ DEBUG(2,printk("AWE32: [expr(%d) %d]\n", voice, value));
+ /* 0 - 127 */
+ voices[voice].expression_vol = value;
+ awe_calc_volume(voice);
+ DISABLE_INTR(flags);
+ awe_set_volume(voice);
+ RESTORE_INTR(flags);
+ break;
+
+ case CTL_PAN:
+ DEBUG(2,printk("AWE32: [pan(%d) %d]\n", voice, value));
+ /* (0-127) -> signed 8bit */
+ voices[voice].panning = value * 2 - 128;
+ DISABLE_INTR(flags);
+ awe_set_pan(voice, 0);
+ RESTORE_INTR(flags);
+ break;
+
+ case CTL_MAIN_VOLUME:
+ value = (value * 127) / 16383;
+ case CTRL_MAIN_VOLUME:
+ DEBUG(2,printk("AWE32: [mainvol(%d) %d]\n", voice, value));
+ /* 0 - 127 */
+ voices[voice].main_vol = value;
+ awe_calc_volume(voice);
+ DISABLE_INTR(flags);
+ awe_set_volume(voice);
+ RESTORE_INTR(flags);
+ break;
+
+ case CTL_EXT_EFF_DEPTH: /* reverb effects: 0-127 */
+ DEBUG(2,printk("AWE32: [reverb(%d) %d]\n", voice, value));
+ FX_SET(voice, AWE_FX_REVERB, value * 2);
+ break;
+
+ case CTL_CHORUS_DEPTH: /* chorus effects: 0-127 */
+ DEBUG(2,printk("AWE32: [chorus(%d) %d]\n", voice, value));
+ FX_SET(voice, AWE_FX_CHORUS, value * 2);
+ break;
+
+
+ default:
+ DEBUG(0,printk("AWE32: [control(%d) ctrl=%d val=%d]\n",
+ voice, ctrl_num, value));
+ break;
+ }
+}
+
+
+/* voice pan change (value = -128 - 127) */
+static void
+awe_panning(int dev, int voice, int value)
+{
+ DECL_INTR_FLAGS(flags);
+ if (voice >= 0 || voice < awe_max_voices) {
+ voices[voice].panning = value;
+ DEBUG(2,printk("AWE32: [pan(%d) %d]\n", voice, voices[voice].panning));
+ DISABLE_INTR(flags);
+ awe_set_pan(voice, 0);
+ RESTORE_INTR(flags);
+ }
+}
+
+
+/* volume mode change */
+static void
+awe_volume_method(int dev, int mode)
+{
+ /* not impremented */
+ DEBUG(0,printk("AWE32: [volmethod mode=%d]\n", mode));
+}
+
+
+/* patch manager */
+static int
+awe_patchmgr(int dev, struct patmgr_info *rec)
+{
+ FATALERR(printk("AWE32 Warning: patch manager control not supported\n"));
+ return 0;
+}
+
+
+/* pitch wheel change: 0-16384 */
+static void
+awe_bender(int dev, int voice, int value)
+{
+ DECL_INTR_FLAGS(flags);
+
+ if (voice < 0 || voice >= awe_max_voices)
+ return;
+ /* convert to zero centered value */
+ voices[voice].bender = value - 8192;
+ DEBUG(2,printk("AWE32: [bend(%d) %d]\n", voice, voices[voice].bender));
+ awe_calc_pitch(voice);
+ DISABLE_INTR(flags);
+ awe_set_pitch(voice);
+ RESTORE_INTR(flags);
+}
+
+
+/* search an empty voice; used by sequencer2 */
+static int
+awe_alloc(int dev, int chn, int note, struct voice_alloc_info *alloc)
+{
+ int i, p, best = -1, best_time = 0x7fffffff;
+
+ p = alloc->ptr;
+ /* First look for a completely stopped voice */
+
+ for (i = 0; i < alloc->max_voice; i++) {
+ if (alloc->map[p] == 0) {
+ alloc->ptr = p;
+ return p;
+ }
+ if (alloc->alloc_times[p] < best_time) {
+ best = p;
+ best_time = alloc->alloc_times[p];
+ }
+ p = (p + 1) % alloc->max_voice;
+ }
+
+ /* Then look for a releasing voice */
+ for (i = 0; i < alloc->max_voice; i++) {
+ if (alloc->map[p] == 0xffff) {
+ alloc->ptr = p;
+ return p;
+ }
+ p = (p + 1) % alloc->max_voice;
+ }
+
+ if (best >= 0)
+ p = best;
+
+ /* terminate the voice */
+ if (voices[p].state)
+ awe_terminate(p);
+
+ alloc->ptr = p;
+ return p;
+}
+
+
+/* set up voice; used by sequencer2 */
+static void
+awe_setup_voice(int dev, int voice, int chn)
+{
+ struct channel_info *info;
+ if (synth_devs[dev] == NULL ||
+ (info = &synth_devs[dev]->chn_info[chn]) == NULL)
+ return;
+ if (voice < 0 || voice >= awe_max_voices)
+ return;
+
+ DEBUG(2,printk("AWE32: [setup(%d) ch=%d]\n", voice, chn));
+ voices[voice].expression_vol = info->controllers[CTL_EXPRESSION];
+ voices[voice].main_vol =
+ (info->controllers[CTL_MAIN_VOLUME] * 100) / 128; /* 0 - 127 */
+ voices[voice].panning =
+ info->controllers[CTL_PAN] * 2 - 128; /* signed 8bit */
+ voices[voice].bender = info->bender_value; /* zero center */
+ voices[voice].bank = info->controllers[CTL_BANK_SELECT];
+ awe_set_instr(dev, voice, info->pgm_num);
+}
+
+
+/*================================================================
+ * initialization of AWE32
+ *================================================================*/
+
+/* intiailize audio channels */
+static void
+awe_init_audio(void)
+{
+ int ch;
+
+ /* turn off envelope engines */
+ for (ch = 0; ch < AWE_MAX_VOICES; ch++) {
+ awe_poke(AWE_DCYSUSV(ch), 0x0080);
+ }
+
+ for (ch = 0; ch < AWE_MAX_VOICES; ch++) {
+ awe_poke(AWE_ENVVOL(ch), 0);
+ awe_poke(AWE_ENVVAL(ch), 0);
+ awe_poke(AWE_DCYSUS(ch), 0);
+ awe_poke(AWE_ATKHLDV(ch), 0);
+ awe_poke(AWE_LFO1VAL(ch), 0);
+ awe_poke(AWE_ATKHLD(ch), 0);
+ awe_poke(AWE_LFO2VAL(ch), 0);
+ awe_poke(AWE_IP(ch), 0);
+ awe_poke(AWE_IFATN(ch), 0);
+ awe_poke(AWE_PEFE(ch), 0);
+ awe_poke(AWE_FMMOD(ch), 0);
+ awe_poke(AWE_TREMFRQ(ch), 0);
+ awe_poke(AWE_FM2FRQ2(ch), 0);
+ awe_poke_dw(AWE_PTRX(ch), 0);
+ awe_poke_dw(AWE_VTFT(ch), 0);
+ awe_poke_dw(AWE_PSST(ch), 0);
+ awe_poke_dw(AWE_CSL(ch), 0);
+ awe_poke_dw(AWE_CCCA(ch), 0);
+ }
+
+ for (ch = 0; ch < AWE_MAX_VOICES; ch++) {
+ awe_poke_dw(AWE_CPF(ch), 0);
+ awe_poke_dw(AWE_CVCF(ch), 0);
+ }
+}
+
+
+/* initialize DMA address */
+static void
+awe_init_dma(void)
+{
+ awe_poke_dw(AWE_SMALR, 0x00000000);
+ awe_poke_dw(AWE_SMARR, 0x00000000);
+ awe_poke_dw(AWE_SMALW, 0x00000000);
+ awe_poke_dw(AWE_SMARW, 0x00000000);
+}
+
+
+/* initialization arrays */
+
+static unsigned short init1[128] = {
+ 0x03ff, 0x0030, 0x07ff, 0x0130, 0x0bff, 0x0230, 0x0fff, 0x0330,
+ 0x13ff, 0x0430, 0x17ff, 0x0530, 0x1bff, 0x0630, 0x1fff, 0x0730,
+ 0x23ff, 0x0830, 0x27ff, 0x0930, 0x2bff, 0x0a30, 0x2fff, 0x0b30,
+ 0x33ff, 0x0c30, 0x37ff, 0x0d30, 0x3bff, 0x0e30, 0x3fff, 0x0f30,
+
+ 0x43ff, 0x0030, 0x47ff, 0x0130, 0x4bff, 0x0230, 0x4fff, 0x0330,
+ 0x53ff, 0x0430, 0x57ff, 0x0530, 0x5bff, 0x0630, 0x5fff, 0x0730,
+ 0x63ff, 0x0830, 0x67ff, 0x0930, 0x6bff, 0x0a30, 0x6fff, 0x0b30,
+ 0x73ff, 0x0c30, 0x77ff, 0x0d30, 0x7bff, 0x0e30, 0x7fff, 0x0f30,
+
+ 0x83ff, 0x0030, 0x87ff, 0x0130, 0x8bff, 0x0230, 0x8fff, 0x0330,
+ 0x93ff, 0x0430, 0x97ff, 0x0530, 0x9bff, 0x0630, 0x9fff, 0x0730,
+ 0xa3ff, 0x0830, 0xa7ff, 0x0930, 0xabff, 0x0a30, 0xafff, 0x0b30,
+ 0xb3ff, 0x0c30, 0xb7ff, 0x0d30, 0xbbff, 0x0e30, 0xbfff, 0x0f30,
+
+ 0xc3ff, 0x0030, 0xc7ff, 0x0130, 0xcbff, 0x0230, 0xcfff, 0x0330,
+ 0xd3ff, 0x0430, 0xd7ff, 0x0530, 0xdbff, 0x0630, 0xdfff, 0x0730,
+ 0xe3ff, 0x0830, 0xe7ff, 0x0930, 0xebff, 0x0a30, 0xefff, 0x0b30,
+ 0xf3ff, 0x0c30, 0xf7ff, 0x0d30, 0xfbff, 0x0e30, 0xffff, 0x0f30,
+};
+
+static unsigned short init2[128] = {
+ 0x03ff, 0x8030, 0x07ff, 0x8130, 0x0bff, 0x8230, 0x0fff, 0x8330,
+ 0x13ff, 0x8430, 0x17ff, 0x8530, 0x1bff, 0x8630, 0x1fff, 0x8730,
+ 0x23ff, 0x8830, 0x27ff, 0x8930, 0x2bff, 0x8a30, 0x2fff, 0x8b30,
+ 0x33ff, 0x8c30, 0x37ff, 0x8d30, 0x3bff, 0x8e30, 0x3fff, 0x8f30,
+
+ 0x43ff, 0x8030, 0x47ff, 0x8130, 0x4bff, 0x8230, 0x4fff, 0x8330,
+ 0x53ff, 0x8430, 0x57ff, 0x8530, 0x5bff, 0x8630, 0x5fff, 0x8730,
+ 0x63ff, 0x8830, 0x67ff, 0x8930, 0x6bff, 0x8a30, 0x6fff, 0x8b30,
+ 0x73ff, 0x8c30, 0x77ff, 0x8d30, 0x7bff, 0x8e30, 0x7fff, 0x8f30,
+
+ 0x83ff, 0x8030, 0x87ff, 0x8130, 0x8bff, 0x8230, 0x8fff, 0x8330,
+ 0x93ff, 0x8430, 0x97ff, 0x8530, 0x9bff, 0x8630, 0x9fff, 0x8730,
+ 0xa3ff, 0x8830, 0xa7ff, 0x8930, 0xabff, 0x8a30, 0xafff, 0x8b30,
+ 0xb3ff, 0x8c30, 0xb7ff, 0x8d30, 0xbbff, 0x8e30, 0xbfff, 0x8f30,
+ 0xc3ff, 0x8030, 0xc7ff, 0x8130, 0xcbff, 0x8230, 0xcfff, 0x8330,
+ 0xd3ff, 0x8430, 0xd7ff, 0x8530, 0xdbff, 0x8630, 0xdfff, 0x8730,
+ 0xe3ff, 0x8830, 0xe7ff, 0x8930, 0xebff, 0x8a30, 0xefff, 0x8b30,
+ 0xf3ff, 0x8c30, 0xf7ff, 0x8d30, 0xfbff, 0x8e30, 0xffff, 0x8f30,
+};
+
+static unsigned short init3[128] = {
+ 0x0C10, 0x8470, 0x14FE, 0xB488, 0x167F, 0xA470, 0x18E7, 0x84B5,
+ 0x1B6E, 0x842A, 0x1F1D, 0x852A, 0x0DA3, 0x8F7C, 0x167E, 0xF254,
+ 0x0000, 0x842A, 0x0001, 0x852A, 0x18E6, 0x8BAA, 0x1B6D, 0xF234,
+ 0x229F, 0x8429, 0x2746, 0x8529, 0x1F1C, 0x86E7, 0x229E, 0xF224,
+
+ 0x0DA4, 0x8429, 0x2C29, 0x8529, 0x2745, 0x87F6, 0x2C28, 0xF254,
+ 0x383B, 0x8428, 0x320F, 0x8528, 0x320E, 0x8F02, 0x1341, 0xF264,
+ 0x3EB6, 0x8428, 0x3EB9, 0x8528, 0x383A, 0x8FA9, 0x3EB5, 0xF294,
+ 0x3EB7, 0x8474, 0x3EBA, 0x8575, 0x3EB8, 0xC4C3, 0x3EBB, 0xC5C3,
+
+ 0x0000, 0xA404, 0x0001, 0xA504, 0x141F, 0x8671, 0x14FD, 0x8287,
+ 0x3EBC, 0xE610, 0x3EC8, 0x8C7B, 0x031A, 0x87E6, 0x3EC8, 0x86F7,
+ 0x3EC0, 0x821E, 0x3EBE, 0xD208, 0x3EBD, 0x821F, 0x3ECA, 0x8386,
+ 0x3EC1, 0x8C03, 0x3EC9, 0x831E, 0x3ECA, 0x8C4C, 0x3EBF, 0x8C55,
+
+ 0x3EC9, 0xC208, 0x3EC4, 0xBC84, 0x3EC8, 0x8EAD, 0x3EC8, 0xD308,
+ 0x3EC2, 0x8F7E, 0x3ECB, 0x8219, 0x3ECB, 0xD26E, 0x3EC5, 0x831F,
+ 0x3EC6, 0xC308, 0x3EC3, 0xB2FF, 0x3EC9, 0x8265, 0x3EC9, 0x8319,
+ 0x1342, 0xD36E, 0x3EC7, 0xB3FF, 0x0000, 0x8365, 0x1420, 0x9570,
+};
+
+static unsigned short init4[128] = {
+ 0x0C10, 0x8470, 0x14FE, 0xB488, 0x167F, 0xA470, 0x18E7, 0x84B5,
+ 0x1B6E, 0x842A, 0x1F1D, 0x852A, 0x0DA3, 0x0F7C, 0x167E, 0x7254,
+ 0x0000, 0x842A, 0x0001, 0x852A, 0x18E6, 0x0BAA, 0x1B6D, 0x7234,
+ 0x229F, 0x8429, 0x2746, 0x8529, 0x1F1C, 0x06E7, 0x229E, 0x7224,
+
+ 0x0DA4, 0x8429, 0x2C29, 0x8529, 0x2745, 0x07F6, 0x2C28, 0x7254,
+ 0x383B, 0x8428, 0x320F, 0x8528, 0x320E, 0x0F02, 0x1341, 0x7264,
+ 0x3EB6, 0x8428, 0x3EB9, 0x8528, 0x383A, 0x0FA9, 0x3EB5, 0x7294,
+ 0x3EB7, 0x8474, 0x3EBA, 0x8575, 0x3EB8, 0x44C3, 0x3EBB, 0x45C3,
+
+ 0x0000, 0xA404, 0x0001, 0xA504, 0x141F, 0x0671, 0x14FD, 0x0287,
+ 0x3EBC, 0xE610, 0x3EC8, 0x0C7B, 0x031A, 0x07E6, 0x3EC8, 0x86F7,
+ 0x3EC0, 0x821E, 0x3EBE, 0xD208, 0x3EBD, 0x021F, 0x3ECA, 0x0386,
+ 0x3EC1, 0x0C03, 0x3EC9, 0x031E, 0x3ECA, 0x8C4C, 0x3EBF, 0x0C55,
+
+ 0x3EC9, 0xC208, 0x3EC4, 0xBC84, 0x3EC8, 0x0EAD, 0x3EC8, 0xD308,
+ 0x3EC2, 0x8F7E, 0x3ECB, 0x0219, 0x3ECB, 0xD26E, 0x3EC5, 0x031F,
+ 0x3EC6, 0xC308, 0x3EC3, 0x32FF, 0x3EC9, 0x0265, 0x3EC9, 0x8319,
+ 0x1342, 0xD36E, 0x3EC7, 0x33FF, 0x0000, 0x8365, 0x1420, 0x9570,
+};
+
+
+/* send initialization arrays to start up */
+static void
+awe_init_array(void)
+{
+ awe_send_array(init1);
+ awe_wait(1024);
+ awe_send_array(init2);
+ awe_send_array(init3);
+ awe_poke_dw(AWE_HWCF4, 0);
+ awe_poke_dw(AWE_HWCF5, 0x83);
+ awe_poke_dw(AWE_HWCF6, 0x8000);
+ awe_send_array(init4);
+}
+
+/* send an initialization array */
+static void
+awe_send_array(unsigned short *data)
+{
+ int i;
+ unsigned short *p;
+
+ p = data;
+ for (i = 0; i < AWE_MAX_VOICES; i++, p++)
+ awe_poke(AWE_INIT1(i), *p);
+ for (i = 0; i < AWE_MAX_VOICES; i++, p++)
+ awe_poke(AWE_INIT2(i), *p);
+ for (i = 0; i < AWE_MAX_VOICES; i++, p++)
+ awe_poke(AWE_INIT3(i), *p);
+ for (i = 0; i < AWE_MAX_VOICES; i++, p++)
+ awe_poke(AWE_INIT4(i), *p);
+}
+
+
+/*
+ * set up awe32 channels to some known state.
+ */
+
+static void
+awe_tweak(void)
+{
+ int i;
+
+ /* Set the envelope engine parameters to the "default" values for
+ simply playing back unarticulated audio at 44.1kHz. Set all
+ of the channels: */
+
+ for (i = 0; i < AWE_MAX_VOICES; i++) {
+ awe_poke(AWE_ENVVOL(i) , 0x8000);
+ awe_poke(AWE_ENVVAL(i) , 0x8000);
+ awe_poke(AWE_DCYSUS(i) , 0x7F7F);
+ awe_poke(AWE_ATKHLDV(i) , 0x7F7F);
+ awe_poke(AWE_LFO1VAL(i) , 0x8000);
+ awe_poke(AWE_ATKHLD(i) , 0x7F7F);
+ awe_poke(AWE_LFO2VAL(i) , 0x8000);
+ awe_poke(AWE_IP(i) , 0xE000);
+ awe_poke(AWE_IFATN(i) , 0xFF00);
+ awe_poke(AWE_PEFE(i) , 0x0000);
+ awe_poke(AWE_FMMOD(i) , 0x0000);
+ awe_poke(AWE_TREMFRQ(i) , 0x0010);
+ awe_poke(AWE_FM2FRQ2(i) , 0x0010);
+ }
+}
+
+
+/*
+ * initializes the FM section of AWE32
+ */
+
+static void
+awe_init_fm(void)
+{
+#ifndef AWE_ALWAYS_INIT_FM
+ /* if no extended memory is on board.. */
+ if (awe_mem_size <= 0)
+ return;
+#endif
+ DEBUG(0,printk("AWE32: initializing FM\n"));
+
+ /* Initialize the last two channels for DRAM refresh and producing
+ the reverb and chorus effects for Yamaha OPL-3 synthesizer */
+
+ awe_poke( AWE_DCYSUSV(30) , 0x0080);
+ awe_poke_dw(AWE_PSST(30) , 0xFFFFFFE0);
+ awe_poke_dw(AWE_CSL(30) , 0xFFFFFFE8);
+ awe_poke_dw(AWE_PTRX(30) , 0x00FFFF00);
+ awe_poke_dw(AWE_CPF(30) , 0x00000000);
+ awe_poke_dw(AWE_CCCA(30) , 0x00FFFFE3);
+
+ awe_poke( AWE_DCYSUSV(31) , 0x0080);
+ awe_poke_dw(AWE_PSST(31) , 0x00FFFFE0);
+ awe_poke_dw(AWE_CSL(31) , 0xFFFFFFE8);
+ awe_poke_dw(AWE_PTRX(31) , 0x00FFFF00);
+ awe_poke_dw(AWE_CPF(31) , 0x00000000);
+ awe_poke_dw(AWE_CCCA(31) , 0x00FFFFE3);
+
+ /* Timing loop */
+
+ /* PTRX is 32 bit long but do not write to the MS byte */
+ awe_poke(AWE_PTRX(30) , 0x0000);
+
+ while(! (inw(awe_base-0x620+Pointer) & 0x1000));
+ while( inw(awe_base-0x620+Pointer) & 0x1000);
+
+ /* now write the MS byte of PTRX */
+ OUTW(0x4828, awe_base-0x620+Data0+0x002);
+
+ awe_poke( AWE_IFATN(28) , 0x0000);
+ awe_poke_dw(AWE_VTFT(30) , 0x8000FFFF);
+ awe_poke_dw(AWE_VTFT(31) , 0x8000FFFF);
+
+ /* change maximum channels to 30 */
+ awe_max_voices = AWE_NORMAL_VOICES;
+ awe_info.nr_voices = awe_max_voices;
+ voice_alloc->max_voice = awe_max_voices;
+}
+
+/*
+ * AWE32 DRAM access routines
+ */
+
+/* open DRAM write accessing mode */
+static int
+awe_open_dram_for_write(int offset)
+{
+ int i;
+
+ /* use all channels for DMA transfer */
+ for (i = 0; i < AWE_NORMAL_VOICES; i++) {
+ awe_poke(AWE_DCYSUSV(i), 0x80);
+ awe_poke_dw(AWE_VTFT(i), 0);
+ awe_poke_dw(AWE_CVCF(i), 0);
+ awe_poke_dw(AWE_PTRX(i), 0x40000000);
+ awe_poke_dw(AWE_CPF(i), 0x40000000);
+ awe_poke_dw(AWE_PSST(i), 0);
+ awe_poke_dw(AWE_CSL(i), 0);
+ awe_poke_dw(AWE_CCCA(i), 0x06000000);
+ }
+ /* point channels 31 & 32 to ROM samples for DRAM refresh */
+ awe_poke_dw(AWE_VTFT(30), 0);
+ awe_poke_dw(AWE_PSST(30), 0x1d8);
+ awe_poke_dw(AWE_CSL(30), 0x1e0);
+ awe_poke_dw(AWE_CCCA(30), 0x1d8);
+ awe_poke_dw(AWE_VTFT(31), 0);
+ awe_poke_dw(AWE_PSST(31), 0x1d8);
+ awe_poke_dw(AWE_CSL(31), 0x1e0);
+ awe_poke_dw(AWE_CCCA(31), 0x1d8);
+
+ /* if full bit is on, not ready to write on */
+ if (awe_peek_dw(AWE_SMALW) & 0x80000000) {
+ for (i = 0; i < AWE_NORMAL_VOICES; i++)
+ awe_poke_dw(AWE_CCCA(i), 0);
+ return RET_ERROR(ENOSPC);
+ }
+
+ /* set address to write */
+ awe_poke_dw(AWE_SMALW, offset + AWE_DRAM_OFFSET);
+
+ return 0;
+}
+
+/* open DRAM for RAM size detection */
+static void
+awe_open_dram_for_check(void)
+{
+ int k;
+ unsigned long scratch;
+
+ awe_poke(AWE_HWCF2 , 0x0020);
+
+ for (k = 0; k < AWE_NORMAL_VOICES; k++) {
+ awe_poke(AWE_DCYSUSV(k), 0x0080);
+ awe_poke_dw(AWE_VTFT(k), 0x00000000);
+ awe_poke_dw(AWE_CVCF(k), 0x00000000);
+ awe_poke_dw(AWE_PTRX(k), 0x40000000);
+ awe_poke_dw(AWE_CPF(k), 0x40000000);
+ awe_poke_dw(AWE_PSST(k), 0x00000000);
+ awe_poke_dw(AWE_CSL(k), 0x00000000);
+ scratch = (((k&1) << 9) + 0x400);
+ scratch = scratch << 16;
+ awe_poke_dw(AWE_CCCA(k), scratch);
+ }
+}
+
+
+/* close dram access */
+static void
+awe_close_dram(void)
+{
+ int i;
+ /* wait until FULL bit in SMAxW register be false */
+ for (i = 0; i < 10000; i++) {
+ if (!(awe_peek_dw(AWE_SMALW) & 0x80000000))
+ break;
+ awe_wait(10);
+ }
+
+ for (i = 0; i < AWE_NORMAL_VOICES; i++) {
+ awe_poke_dw(AWE_CCCA(i), 0);
+ awe_poke(AWE_DCYSUSV(i), 0x807F);
+ }
+}
+
+
+#ifdef AWE_CHECKSUM_MEMORY
+/* open DRAM read accessing mode */
+static int
+awe_open_dram_for_read(int offset)
+{
+ int i;
+
+ /* use all channels for DMA transfer */
+ for (i = 0; i < AWE_NORMAL_VOICES; i++) {
+ awe_poke(AWE_DCYSUSV(i), 0x80);
+ awe_poke_dw(AWE_VTFT(i), 0);
+ awe_poke_dw(AWE_CVCF(i), 0);
+ awe_poke_dw(AWE_PTRX(i), 0x40000000);
+ awe_poke_dw(AWE_CPF(i), 0x40000000);
+ awe_poke_dw(AWE_PSST(i), 0);
+ awe_poke_dw(AWE_CSL(i), 0);
+ awe_poke_dw(AWE_CCCA(i), 0x04000000);
+ }
+ /* point channels 31 & 32 to ROM samples for DRAM refresh */
+ awe_poke_dw(AWE_VTFT(30), 0);
+ awe_poke_dw(AWE_PSST(30), 0x1d8);
+ awe_poke_dw(AWE_CSL(30), 0x1e0);
+ awe_poke_dw(AWE_CCCA(30), 0x1d8);
+ awe_poke_dw(AWE_VTFT(31), 0);
+ awe_poke_dw(AWE_PSST(31), 0x1d8);
+ awe_poke_dw(AWE_CSL(31), 0x1e0);
+ awe_poke_dw(AWE_CCCA(31), 0x1d8);
+
+ /* if empty flag is on, not ready to read */
+ if (awe_peek_dw(AWE_SMALR) & 0x80000000) {
+ for (i = 0; i < AWE_NORMAL_VOICES; i++)
+ awe_poke_dw(AWE_CCCA(i), 0);
+ return RET_ERROR(ENOSPC);
+ }
+
+ /* set address to read */
+ awe_poke_dw(AWE_SMALR, offset + AWE_DRAM_OFFSET);
+ /* drop stale data */
+ awe_peek(AWE_SMLD);
+ return 0;
+}
+
+/* close dram access for read */
+static void
+awe_close_dram_for_read(void)
+{
+ int i;
+ /* wait until FULL bit in SMAxW register be false */
+ for (i = 0; i < 10000; i++) {
+ if (!(awe_peek_dw(AWE_SMALR) & 0x80000000))
+ break;
+ awe_wait(10);
+ }
+ for (i = 0; i < AWE_NORMAL_VOICES; i++) {
+ awe_poke_dw(AWE_CCCA(i), 0);
+ awe_poke(AWE_DCYSUSV(i), 0x807F);
+ }
+}
+#endif /* AWE_CHECKSUM_MEMORY */
+
+
+/* write a word data */
+static void
+awe_write_dram(unsigned short c)
+{
+ int k;
+ /* wait until FULL bit in SMAxW register be false */
+ for (k = 0; k < 10000; k++) {
+ if (!(awe_peek_dw(AWE_SMALW) & 0x80000000))
+ break;
+ awe_wait(10);
+ }
+ awe_poke(AWE_SMLD, c);
+}
+
+/*================================================================
+ * detect presence of AWE32 and check memory size
+ *================================================================*/
+
+static int
+awe_detect(void)
+{
+#ifdef AWE_DEFAULT_BASE_ADDR
+ awe_base = AWE_DEFAULT_BASE_ADDR;
+ if (((awe_peek(AWE_U1) & 0x000F) == 0x000C) &&
+ ((awe_peek(AWE_HWCF1) & 0x007E) == 0x0058) &&
+ ((awe_peek(AWE_HWCF2) & 0x0003) == 0x0003))
+ return 1;
+#endif
+ if (awe_base == 0) {
+ for (awe_base = 0x620; awe_base <= 0x680; awe_base += 0x20) {
+ if ((awe_peek(AWE_U1) & 0x000F) != 0x000C)
+ continue;
+ if ((awe_peek(AWE_HWCF1) & 0x007E) != 0x0058)
+ continue;
+ if ((awe_peek(AWE_HWCF2) & 0x0003) != 0x0003)
+ continue;
+ DEBUG(0,printk("AWE32 found at %x\n", awe_base));
+ return 1;
+ }
+ }
+ FATALERR(printk("AWE32 not found\n"));
+ awe_base = 0;
+ return 0;
+}
+
+
+/*================================================================
+ * check dram size on AWE board
+ *================================================================*/
+static int
+awe_check_dram(void)
+{
+ awe_open_dram_for_check();
+
+ awe_poke_dw(AWE_SMALW , 0x00200000); /* DRAM start address */
+ awe_poke( AWE_SMLD , 0x1234);
+ awe_poke( AWE_SMLD , 0x7777);
+
+ awe_mem_size = 0;
+ while (awe_mem_size < 28*1024) { /* 28 MB is max onboard memory */
+ awe_wait(2);
+ awe_poke_dw(AWE_SMALR, 0x00200000); /* Address for reading */
+ awe_peek(AWE_SMLD); /* Discard stale data */
+ if (awe_peek(AWE_SMLD) != 0x1234)
+ break;
+ if (awe_peek(AWE_SMLD) != 0x7777)
+ break;
+ awe_mem_size += 32;
+ /* Address for writing */
+ awe_poke_dw(AWE_SMALW, 0x00200000+awe_mem_size*512L);
+ awe_poke(AWE_SMLD, 0xFFFF);
+ }
+ awe_close_dram();
+
+ DEBUG(0,printk("AWE32: %d Kbytes memory detected\n", (int)awe_mem_size));
+#ifdef AWE_DEFAULT_MEM_SIZE
+ if (awe_mem_size == 0)
+ awe_mem_size = AWE_DEFAULT_MEM_SIZE;
+#endif
+ /* convert to Kbytes */
+ awe_mem_size *= 1024;
+ return awe_mem_size;
+}
+
+
+/*================================================================
+ * chorus and reverb controls
+ *================================================================*/
+
+static unsigned short ChorusEffects[24] =
+{
+ 0xE600,0x03F6,0xBC2C,0xE608,0x031A,0xBC6E,0xE610,0x031A,
+ 0xBC84,0xE620,0x0269,0xBC6E,0xE680,0x04D3,0xBCA6,0xE6E0,
+ 0x044E,0xBC37,0xE600,0x0B06,0xBC00,0xE6C0,0x0B06,0xBC00
+};
+
+static unsigned long ChorusEffects2[] =
+{
+ 0x0000 ,0x006D,0x8000,0x0000,0x0000 ,0x017C,0x8000,0x0000,
+ 0x0000 ,0x0083,0x8000,0x0000,0x0000 ,0x017C,0x8000,0x0000,
+ 0x0000 ,0x005B,0x8000,0x0000,0x0000 ,0x0026,0x8000,0x0000,
+ 0x6E000,0x0083,0x8000,0x0000,0x6E000,0x0083,0x8000,0x0000
+};
+
+static unsigned short ChorusCommand[14] =
+{
+ 0x69,0xA20,0x6C,0xA20,0x63,0xA22,0x29,
+ 0xA20,0x2A,0xA20,0x2D,0xA20,0x2E,0xA20
+};
+
+static unsigned short ReverbEffects[224] =
+{
+ /* Room 1 */
+ 0xB488,0xA450,0x9550,0x84B5,0x383A,0x3EB5,0x72F4,
+ 0x72A4,0x7254,0x7204,0x7204,0x7204,0x4416,0x4516,
+ 0xA490,0xA590,0x842A,0x852A,0x842A,0x852A,0x8429,
+ 0x8529,0x8429,0x8529,0x8428,0x8528,0x8428,0x8528,
+ /* Room 2 */
+ 0xB488,0xA458,0x9558,0x84B5,0x383A,0x3EB5,0x7284,
+ 0x7254,0x7224,0x7224,0x7254,0x7284,0x4448,0x4548,
+ 0xA440,0xA540,0x842A,0x852A,0x842A,0x852A,0x8429,
+ 0x8529,0x8429,0x8529,0x8428,0x8528,0x8428,0x8528,
+ /* Room 3 */
+ 0xB488,0xA460,0x9560,0x84B5,0x383A,0x3EB5,0x7284,
+ 0x7254,0x7224,0x7224,0x7254,0x7284,0x4416,0x4516,
+ 0xA490,0xA590,0x842C,0x852C,0x842C,0x852C,0x842B,
+ 0x852B,0x842B,0x852B,0x842A,0x852A,0x842A,0x852A,
+ /* Hall 1 */
+ 0xB488,0xA470,0x9570,0x84B5,0x383A,0x3EB5,0x7284,
+ 0x7254,0x7224,0x7224,0x7254,0x7284,0x4448,0x4548,
+ 0xA440,0xA540,0x842B,0x852B,0x842B,0x852B,0x842A,
+ 0x852A,0x842A,0x852A,0x8429,0x8529,0x8429,0x8529,
+ /* Hall 2 */
+ 0xB488,0xA470,0x9570,0x84B5,0x383A,0x3EB5,0x7254,
+ 0x7234,0x7224,0x7254,0x7264,0x7294,0x44C3,0x45C3,
+ 0xA404,0xA504,0x842A,0x852A,0x842A,0x852A,0x8429,
+ 0x8529,0x8429,0x8529,0x8428,0x8528,0x8428,0x8528,
+ /* Plate */
+ 0xB4FF,0xA470,0x9570,0x84B5,0x383A,0x3EB5,0x7234,
+ 0x7234,0x7234,0x7234,0x7234,0x7234,0x4448,0x4548,
+ 0xA440,0xA540,0x842A,0x852A,0x842A,0x852A,0x8429,
+ 0x8529,0x8429,0x8529,0x8428,0x8528,0x8428,0x8528,
+ /* Delay */
+ 0xB4FF,0xA470,0x9500,0x84B5,0x333A,0x39B5,0x7204,
+ 0x7204,0x7204,0x7204,0x7204,0x72F4,0x4400,0x4500,
+ 0xA4FF,0xA5FF,0x8420,0x8520,0x8420,0x8520,0x8420,
+ 0x8520,0x8420,0x8520,0x8420,0x8520,0x8420,0x8520,
+ /* Panning Delay */
+ 0xB4FF,0xA490,0x9590,0x8474,0x333A,0x39B5,0x7204,
+ 0x7204,0x7204,0x7204,0x7204,0x72F4,0x4400,0x4500,
+ 0xA4FF,0xA5FF,0x8420,0x8520,0x8420,0x8520,0x8420,
+ 0x8520,0x8420,0x8520,0x8420,0x8520,0x8420,0x8520
+};
+
+static unsigned short ReverbCommand[56] =
+{
+ 0x43,0xA20,0x45,0xA20,0x7F,0xA22,0x47,0xA20,
+ 0x54,0xA22,0x56,0xA22,0x4F,0xA20,0x57,0xA20,
+ 0x5F,0xA20,0x47,0xA22,0x4F,0xA22,0x57,0xA22,
+ 0x5D,0xA22,0x5F,0xA22,0x61,0xA20,0x63,0xA20,
+ 0x49,0xA20,0x4B,0xA20,0x51,0xA20,0x53,0xA20,
+ 0x59,0xA20,0x5B,0xA20,0x41,0xA22,0x43,0xA22,
+ 0x49,0xA22,0x4B,0xA22,0x51,0xA22,0x53,0xA22
+};
+
+static void awe_set_chorus_mode(int effect)
+{
+ int k;
+ DECL_INTR_FLAGS(flags);
+
+ DISABLE_INTR(flags);
+ for (k = 0; k < 3; k++)
+ awe_poke(ChorusCommand[k*2],
+ ChorusCommand[k*2+1],
+ ChorusEffects[k+effect*3]);
+ for (k = 0; k < 4; k++)
+ awe_poke_dw(ChorusCommand[6+k*2],
+ ChorusCommand[6+k*2+1],
+ ChorusEffects2[k+effect*4]);
+ RESTORE_INTR(flags);
+}
+
+static void awe_set_reverb_mode(int effect)
+{
+ int k;
+ DECL_INTR_FLAGS(flags);
+
+ DISABLE_INTR(flags);
+ for (k = 0; k < 28; k++)
+ awe_poke(ReverbCommand[k*2],
+ ReverbCommand[k*2+1],
+ ReverbEffects[k+effect*28]);
+ RESTORE_INTR(flags);
+}
+
+#endif /* CONFIG_AWE32_SYNTH */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov