Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/sound/oss/opl3.c b/sound/oss/opl3.c
new file mode 100644
index 0000000..a31734b
--- /dev/null
+++ b/sound/oss/opl3.c
@@ -0,0 +1,1257 @@
+/*
+ * sound/opl3.c
+ *
+ * A low level driver for Yamaha YM3812 and OPL-3 -chips
+ *
+ *
+ * Copyright (C) by Hannu Savolainen 1993-1997
+ *
+ * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
+ * Version 2 (June 1991). See the "COPYING" file distributed with this software
+ * for more info.
+ *
+ *
+ * Changes
+ * Thomas Sailer ioctl code reworked (vmalloc/vfree removed)
+ * Alan Cox modularisation, fixed sound_mem allocs.
+ * Christoph Hellwig Adapted to module_init/module_exit
+ * Arnaldo C. de Melo get rid of check_region, use request_region for
+ * OPL4, release it on exit, some cleanups.
+ *
+ * Status
+ * Believed to work. Badly needs rewriting a bit to support multiple
+ * OPL3 devices.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+
+/*
+ * Major improvements to the FM handling 30AUG92 by Rob Hooft,
+ * hooft@chem.ruu.nl
+ */
+
+#include "sound_config.h"
+
+#include "opl3.h"
+#include "opl3_hw.h"
+
+#define MAX_VOICE 18
+#define OFFS_4OP 11
+
+struct voice_info
+{
+ unsigned char keyon_byte;
+ long bender;
+ long bender_range;
+ unsigned long orig_freq;
+ unsigned long current_freq;
+ int volume;
+ int mode;
+ int panning; /* 0xffff means not set */
+};
+
+typedef struct opl_devinfo
+{
+ int base;
+ int left_io, right_io;
+ int nr_voice;
+ int lv_map[MAX_VOICE];
+
+ struct voice_info voc[MAX_VOICE];
+ struct voice_alloc_info *v_alloc;
+ struct channel_info *chn_info;
+
+ struct sbi_instrument i_map[SBFM_MAXINSTR];
+ struct sbi_instrument *act_i[MAX_VOICE];
+
+ struct synth_info fm_info;
+
+ int busy;
+ int model;
+ unsigned char cmask;
+
+ int is_opl4;
+ int *osp;
+} opl_devinfo;
+
+static struct opl_devinfo *devc = NULL;
+
+static int detected_model;
+
+static int store_instr(int instr_no, struct sbi_instrument *instr);
+static void freq_to_fnum(int freq, int *block, int *fnum);
+static void opl3_command(int io_addr, unsigned int addr, unsigned int val);
+static int opl3_kill_note(int dev, int voice, int note, int velocity);
+
+static void enter_4op_mode(void)
+{
+ int i;
+ static int v4op[MAX_VOICE] = {
+ 0, 1, 2, 9, 10, 11, 6, 7, 8, 15, 16, 17
+ };
+
+ devc->cmask = 0x3f; /* Connect all possible 4 OP voice operators */
+ opl3_command(devc->right_io, CONNECTION_SELECT_REGISTER, 0x3f);
+
+ for (i = 0; i < 3; i++)
+ pv_map[i].voice_mode = 4;
+ for (i = 3; i < 6; i++)
+ pv_map[i].voice_mode = 0;
+
+ for (i = 9; i < 12; i++)
+ pv_map[i].voice_mode = 4;
+ for (i = 12; i < 15; i++)
+ pv_map[i].voice_mode = 0;
+
+ for (i = 0; i < 12; i++)
+ devc->lv_map[i] = v4op[i];
+ devc->v_alloc->max_voice = devc->nr_voice = 12;
+}
+
+static int opl3_ioctl(int dev, unsigned int cmd, void __user * arg)
+{
+ struct sbi_instrument ins;
+
+ switch (cmd) {
+ case SNDCTL_FM_LOAD_INSTR:
+ printk(KERN_WARNING "Warning: Obsolete ioctl(SNDCTL_FM_LOAD_INSTR) used. Fix the program.\n");
+ if (copy_from_user(&ins, arg, sizeof(ins)))
+ return -EFAULT;
+ if (ins.channel < 0 || ins.channel >= SBFM_MAXINSTR) {
+ printk(KERN_WARNING "FM Error: Invalid instrument number %d\n", ins.channel);
+ return -EINVAL;
+ }
+ return store_instr(ins.channel, &ins);
+
+ case SNDCTL_SYNTH_INFO:
+ devc->fm_info.nr_voices = (devc->nr_voice == 12) ? 6 : devc->nr_voice;
+ if (copy_to_user(arg, &devc->fm_info, sizeof(devc->fm_info)))
+ return -EFAULT;
+ return 0;
+
+ case SNDCTL_SYNTH_MEMAVL:
+ return 0x7fffffff;
+
+ case SNDCTL_FM_4OP_ENABLE:
+ if (devc->model == 2)
+ enter_4op_mode();
+ return 0;
+
+ default:
+ return -EINVAL;
+ }
+}
+
+int opl3_detect(int ioaddr, int *osp)
+{
+ /*
+ * This function returns 1 if the FM chip is present at the given I/O port
+ * The detection algorithm plays with the timer built in the FM chip and
+ * looks for a change in the status register.
+ *
+ * Note! The timers of the FM chip are not connected to AdLib (and compatible)
+ * boards.
+ *
+ * Note2! The chip is initialized if detected.
+ */
+
+ unsigned char stat1, signature;
+ int i;
+
+ if (devc != NULL)
+ {
+ printk(KERN_ERR "opl3: Only one OPL3 supported.\n");
+ return 0;
+ }
+
+ devc = (struct opl_devinfo *)kmalloc(sizeof(*devc), GFP_KERNEL);
+
+ if (devc == NULL)
+ {
+ printk(KERN_ERR "opl3: Can't allocate memory for the device control "
+ "structure \n ");
+ return 0;
+ }
+
+ memset(devc, 0, sizeof(*devc));
+ strcpy(devc->fm_info.name, "OPL2");
+
+ if (!request_region(ioaddr, 4, devc->fm_info.name)) {
+ printk(KERN_WARNING "opl3: I/O port 0x%x already in use\n", ioaddr);
+ goto cleanup_devc;
+ }
+
+ devc->osp = osp;
+ devc->base = ioaddr;
+
+ /* Reset timers 1 and 2 */
+ opl3_command(ioaddr, TIMER_CONTROL_REGISTER, TIMER1_MASK | TIMER2_MASK);
+
+ /* Reset the IRQ of the FM chip */
+ opl3_command(ioaddr, TIMER_CONTROL_REGISTER, IRQ_RESET);
+
+ signature = stat1 = inb(ioaddr); /* Status register */
+
+ if (signature != 0x00 && signature != 0x06 && signature != 0x02 &&
+ signature != 0x0f)
+ {
+ MDB(printk(KERN_INFO "OPL3 not detected %x\n", signature));
+ goto cleanup_region;
+ }
+
+ if (signature == 0x06) /* OPL2 */
+ {
+ detected_model = 2;
+ }
+ else if (signature == 0x00 || signature == 0x0f) /* OPL3 or OPL4 */
+ {
+ unsigned char tmp;
+
+ detected_model = 3;
+
+ /*
+ * Detect availability of OPL4 (_experimental_). Works probably
+ * only after a cold boot. In addition the OPL4 port
+ * of the chip may not be connected to the PC bus at all.
+ */
+
+ opl3_command(ioaddr + 2, OPL3_MODE_REGISTER, 0x00);
+ opl3_command(ioaddr + 2, OPL3_MODE_REGISTER, OPL3_ENABLE | OPL4_ENABLE);
+
+ if ((tmp = inb(ioaddr)) == 0x02) /* Have a OPL4 */
+ {
+ detected_model = 4;
+ }
+
+ if (request_region(ioaddr - 8, 2, "OPL4")) /* OPL4 port was free */
+ {
+ int tmp;
+
+ outb((0x02), ioaddr - 8); /* Select OPL4 ID register */
+ udelay(10);
+ tmp = inb(ioaddr - 7); /* Read it */
+ udelay(10);
+
+ if (tmp == 0x20) /* OPL4 should return 0x20 here */
+ {
+ detected_model = 4;
+ outb((0xF8), ioaddr - 8); /* Select OPL4 FM mixer control */
+ udelay(10);
+ outb((0x1B), ioaddr - 7); /* Write value */
+ udelay(10);
+ }
+ else
+ { /* release OPL4 port */
+ release_region(ioaddr - 8, 2);
+ detected_model = 3;
+ }
+ }
+ opl3_command(ioaddr + 2, OPL3_MODE_REGISTER, 0);
+ }
+ for (i = 0; i < 9; i++)
+ opl3_command(ioaddr, KEYON_BLOCK + i, 0); /*
+ * Note off
+ */
+
+ opl3_command(ioaddr, TEST_REGISTER, ENABLE_WAVE_SELECT);
+ opl3_command(ioaddr, PERCOSSION_REGISTER, 0x00); /*
+ * Melodic mode.
+ */
+ return 1;
+cleanup_region:
+ release_region(ioaddr, 4);
+cleanup_devc:
+ kfree(devc);
+ devc = NULL;
+ return 0;
+}
+
+static int opl3_kill_note (int devno, int voice, int note, int velocity)
+{
+ struct physical_voice_info *map;
+
+ if (voice < 0 || voice >= devc->nr_voice)
+ return 0;
+
+ devc->v_alloc->map[voice] = 0;
+
+ map = &pv_map[devc->lv_map[voice]];
+ DEB(printk("Kill note %d\n", voice));
+
+ if (map->voice_mode == 0)
+ return 0;
+
+ opl3_command(map->ioaddr, KEYON_BLOCK + map->voice_num, devc->voc[voice].keyon_byte & ~0x20);
+ devc->voc[voice].keyon_byte = 0;
+ devc->voc[voice].bender = 0;
+ devc->voc[voice].volume = 64;
+ devc->voc[voice].panning = 0xffff; /* Not set */
+ devc->voc[voice].bender_range = 200;
+ devc->voc[voice].orig_freq = 0;
+ devc->voc[voice].current_freq = 0;
+ devc->voc[voice].mode = 0;
+ return 0;
+}
+
+#define HIHAT 0
+#define CYMBAL 1
+#define TOMTOM 2
+#define SNARE 3
+#define BDRUM 4
+#define UNDEFINED TOMTOM
+#define DEFAULT TOMTOM
+
+static int store_instr(int instr_no, struct sbi_instrument *instr)
+{
+ if (instr->key != FM_PATCH && (instr->key != OPL3_PATCH || devc->model != 2))
+ printk(KERN_WARNING "FM warning: Invalid patch format field (key) 0x%x\n", instr->key);
+ memcpy((char *) &(devc->i_map[instr_no]), (char *) instr, sizeof(*instr));
+ return 0;
+}
+
+static int opl3_set_instr (int dev, int voice, int instr_no)
+{
+ if (voice < 0 || voice >= devc->nr_voice)
+ return 0;
+ if (instr_no < 0 || instr_no >= SBFM_MAXINSTR)
+ instr_no = 0; /* Acoustic piano (usually) */
+
+ devc->act_i[voice] = &devc->i_map[instr_no];
+ return 0;
+}
+
+/*
+ * The next table looks magical, but it certainly is not. Its values have
+ * been calculated as table[i]=8*log(i/64)/log(2) with an obvious exception
+ * for i=0. This log-table converts a linear volume-scaling (0..127) to a
+ * logarithmic scaling as present in the FM-synthesizer chips. so : Volume
+ * 64 = 0 db = relative volume 0 and: Volume 32 = -6 db = relative
+ * volume -8 it was implemented as a table because it is only 128 bytes and
+ * it saves a lot of log() calculations. (RH)
+ */
+
+static char fm_volume_table[128] =
+{
+ -64, -48, -40, -35, -32, -29, -27, -26,
+ -24, -23, -21, -20, -19, -18, -18, -17,
+ -16, -15, -15, -14, -13, -13, -12, -12,
+ -11, -11, -10, -10, -10, -9, -9, -8,
+ -8, -8, -7, -7, -7, -6, -6, -6,
+ -5, -5, -5, -5, -4, -4, -4, -4,
+ -3, -3, -3, -3, -2, -2, -2, -2,
+ -2, -1, -1, -1, -1, 0, 0, 0,
+ 0, 0, 0, 1, 1, 1, 1, 1,
+ 1, 2, 2, 2, 2, 2, 2, 2,
+ 3, 3, 3, 3, 3, 3, 3, 4,
+ 4, 4, 4, 4, 4, 4, 4, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5,
+ 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 8, 8, 8, 8, 8
+};
+
+static void calc_vol(unsigned char *regbyte, int volume, int main_vol)
+{
+ int level = (~*regbyte & 0x3f);
+
+ if (main_vol > 127)
+ main_vol = 127;
+ volume = (volume * main_vol) / 127;
+
+ if (level)
+ level += fm_volume_table[volume];
+
+ if (level > 0x3f)
+ level = 0x3f;
+ if (level < 0)
+ level = 0;
+
+ *regbyte = (*regbyte & 0xc0) | (~level & 0x3f);
+}
+
+static void set_voice_volume(int voice, int volume, int main_vol)
+{
+ unsigned char vol1, vol2, vol3, vol4;
+ struct sbi_instrument *instr;
+ struct physical_voice_info *map;
+
+ if (voice < 0 || voice >= devc->nr_voice)
+ return;
+
+ map = &pv_map[devc->lv_map[voice]];
+ instr = devc->act_i[voice];
+
+ if (!instr)
+ instr = &devc->i_map[0];
+
+ if (instr->channel < 0)
+ return;
+
+ if (devc->voc[voice].mode == 0)
+ return;
+
+ if (devc->voc[voice].mode == 2)
+ {
+ vol1 = instr->operators[2];
+ vol2 = instr->operators[3];
+ if ((instr->operators[10] & 0x01))
+ {
+ calc_vol(&vol1, volume, main_vol);
+ calc_vol(&vol2, volume, main_vol);
+ }
+ else
+ {
+ calc_vol(&vol2, volume, main_vol);
+ }
+ opl3_command(map->ioaddr, KSL_LEVEL + map->op[0], vol1);
+ opl3_command(map->ioaddr, KSL_LEVEL + map->op[1], vol2);
+ }
+ else
+ { /*
+ * 4 OP voice
+ */
+ int connection;
+
+ vol1 = instr->operators[2];
+ vol2 = instr->operators[3];
+ vol3 = instr->operators[OFFS_4OP + 2];
+ vol4 = instr->operators[OFFS_4OP + 3];
+
+ /*
+ * The connection method for 4 OP devc->voc is defined by the rightmost
+ * bits at the offsets 10 and 10+OFFS_4OP
+ */
+
+ connection = ((instr->operators[10] & 0x01) << 1) | (instr->operators[10 + OFFS_4OP] & 0x01);
+
+ switch (connection)
+ {
+ case 0:
+ calc_vol(&vol4, volume, main_vol);
+ break;
+
+ case 1:
+ calc_vol(&vol2, volume, main_vol);
+ calc_vol(&vol4, volume, main_vol);
+ break;
+
+ case 2:
+ calc_vol(&vol1, volume, main_vol);
+ calc_vol(&vol4, volume, main_vol);
+ break;
+
+ case 3:
+ calc_vol(&vol1, volume, main_vol);
+ calc_vol(&vol3, volume, main_vol);
+ calc_vol(&vol4, volume, main_vol);
+ break;
+
+ default:
+ ;
+ }
+ opl3_command(map->ioaddr, KSL_LEVEL + map->op[0], vol1);
+ opl3_command(map->ioaddr, KSL_LEVEL + map->op[1], vol2);
+ opl3_command(map->ioaddr, KSL_LEVEL + map->op[2], vol3);
+ opl3_command(map->ioaddr, KSL_LEVEL + map->op[3], vol4);
+ }
+}
+
+static int opl3_start_note (int dev, int voice, int note, int volume)
+{
+ unsigned char data, fpc;
+ int block, fnum, freq, voice_mode, pan;
+ struct sbi_instrument *instr;
+ struct physical_voice_info *map;
+
+ if (voice < 0 || voice >= devc->nr_voice)
+ return 0;
+
+ map = &pv_map[devc->lv_map[voice]];
+ pan = devc->voc[voice].panning;
+
+ if (map->voice_mode == 0)
+ return 0;
+
+ if (note == 255) /*
+ * Just change the volume
+ */
+ {
+ set_voice_volume(voice, volume, devc->voc[voice].volume);
+ return 0;
+ }
+
+ /*
+ * Kill previous note before playing
+ */
+
+ opl3_command(map->ioaddr, KSL_LEVEL + map->op[1], 0xff); /*
+ * Carrier
+ * volume to
+ * min
+ */
+ opl3_command(map->ioaddr, KSL_LEVEL + map->op[0], 0xff); /*
+ * Modulator
+ * volume to
+ */
+
+ if (map->voice_mode == 4)
+ {
+ opl3_command(map->ioaddr, KSL_LEVEL + map->op[2], 0xff);
+ opl3_command(map->ioaddr, KSL_LEVEL + map->op[3], 0xff);
+ }
+
+ opl3_command(map->ioaddr, KEYON_BLOCK + map->voice_num, 0x00); /*
+ * Note
+ * off
+ */
+
+ instr = devc->act_i[voice];
+
+ if (!instr)
+ instr = &devc->i_map[0];
+
+ if (instr->channel < 0)
+ {
+ printk(KERN_WARNING "opl3: Initializing voice %d with undefined instrument\n", voice);
+ return 0;
+ }
+
+ if (map->voice_mode == 2 && instr->key == OPL3_PATCH)
+ return 0; /*
+ * Cannot play
+ */
+
+ voice_mode = map->voice_mode;
+
+ if (voice_mode == 4)
+ {
+ int voice_shift;
+
+ voice_shift = (map->ioaddr == devc->left_io) ? 0 : 3;
+ voice_shift += map->voice_num;
+
+ if (instr->key != OPL3_PATCH) /*
+ * Just 2 OP patch
+ */
+ {
+ voice_mode = 2;
+ devc->cmask &= ~(1 << voice_shift);
+ }
+ else
+ {
+ devc->cmask |= (1 << voice_shift);
+ }
+
+ opl3_command(devc->right_io, CONNECTION_SELECT_REGISTER, devc->cmask);
+ }
+
+ /*
+ * Set Sound Characteristics
+ */
+
+ opl3_command(map->ioaddr, AM_VIB + map->op[0], instr->operators[0]);
+ opl3_command(map->ioaddr, AM_VIB + map->op[1], instr->operators[1]);
+
+ /*
+ * Set Attack/Decay
+ */
+
+ opl3_command(map->ioaddr, ATTACK_DECAY + map->op[0], instr->operators[4]);
+ opl3_command(map->ioaddr, ATTACK_DECAY + map->op[1], instr->operators[5]);
+
+ /*
+ * Set Sustain/Release
+ */
+
+ opl3_command(map->ioaddr, SUSTAIN_RELEASE + map->op[0], instr->operators[6]);
+ opl3_command(map->ioaddr, SUSTAIN_RELEASE + map->op[1], instr->operators[7]);
+
+ /*
+ * Set Wave Select
+ */
+
+ opl3_command(map->ioaddr, WAVE_SELECT + map->op[0], instr->operators[8]);
+ opl3_command(map->ioaddr, WAVE_SELECT + map->op[1], instr->operators[9]);
+
+ /*
+ * Set Feedback/Connection
+ */
+
+ fpc = instr->operators[10];
+
+ if (pan != 0xffff)
+ {
+ fpc &= ~STEREO_BITS;
+ if (pan < -64)
+ fpc |= VOICE_TO_LEFT;
+ else
+ if (pan > 64)
+ fpc |= VOICE_TO_RIGHT;
+ else
+ fpc |= (VOICE_TO_LEFT | VOICE_TO_RIGHT);
+ }
+
+ if (!(fpc & 0x30))
+ fpc |= 0x30; /*
+ * Ensure that at least one chn is enabled
+ */
+ opl3_command(map->ioaddr, FEEDBACK_CONNECTION + map->voice_num, fpc);
+
+ /*
+ * If the voice is a 4 OP one, initialize the operators 3 and 4 also
+ */
+
+ if (voice_mode == 4)
+ {
+ /*
+ * Set Sound Characteristics
+ */
+
+ opl3_command(map->ioaddr, AM_VIB + map->op[2], instr->operators[OFFS_4OP + 0]);
+ opl3_command(map->ioaddr, AM_VIB + map->op[3], instr->operators[OFFS_4OP + 1]);
+
+ /*
+ * Set Attack/Decay
+ */
+
+ opl3_command(map->ioaddr, ATTACK_DECAY + map->op[2], instr->operators[OFFS_4OP + 4]);
+ opl3_command(map->ioaddr, ATTACK_DECAY + map->op[3], instr->operators[OFFS_4OP + 5]);
+
+ /*
+ * Set Sustain/Release
+ */
+
+ opl3_command(map->ioaddr, SUSTAIN_RELEASE + map->op[2], instr->operators[OFFS_4OP + 6]);
+ opl3_command(map->ioaddr, SUSTAIN_RELEASE + map->op[3], instr->operators[OFFS_4OP + 7]);
+
+ /*
+ * Set Wave Select
+ */
+
+ opl3_command(map->ioaddr, WAVE_SELECT + map->op[2], instr->operators[OFFS_4OP + 8]);
+ opl3_command(map->ioaddr, WAVE_SELECT + map->op[3], instr->operators[OFFS_4OP + 9]);
+
+ /*
+ * Set Feedback/Connection
+ */
+
+ fpc = instr->operators[OFFS_4OP + 10];
+ if (!(fpc & 0x30))
+ fpc |= 0x30; /*
+ * Ensure that at least one chn is enabled
+ */
+ opl3_command(map->ioaddr, FEEDBACK_CONNECTION + map->voice_num + 3, fpc);
+ }
+
+ devc->voc[voice].mode = voice_mode;
+ set_voice_volume(voice, volume, devc->voc[voice].volume);
+
+ freq = devc->voc[voice].orig_freq = note_to_freq(note) / 1000;
+
+ /*
+ * Since the pitch bender may have been set before playing the note, we
+ * have to calculate the bending now.
+ */
+
+ freq = compute_finetune(devc->voc[voice].orig_freq, devc->voc[voice].bender, devc->voc[voice].bender_range, 0);
+ devc->voc[voice].current_freq = freq;
+
+ freq_to_fnum(freq, &block, &fnum);
+
+ /*
+ * Play note
+ */
+
+ data = fnum & 0xff; /*
+ * Least significant bits of fnumber
+ */
+ opl3_command(map->ioaddr, FNUM_LOW + map->voice_num, data);
+
+ data = 0x20 | ((block & 0x7) << 2) | ((fnum >> 8) & 0x3);
+ devc->voc[voice].keyon_byte = data;
+ opl3_command(map->ioaddr, KEYON_BLOCK + map->voice_num, data);
+ if (voice_mode == 4)
+ opl3_command(map->ioaddr, KEYON_BLOCK + map->voice_num + 3, data);
+
+ return 0;
+}
+
+static void freq_to_fnum (int freq, int *block, int *fnum)
+{
+ int f, octave;
+
+ /*
+ * Converts the note frequency to block and fnum values for the FM chip
+ */
+ /*
+ * First try to compute the block -value (octave) where the note belongs
+ */
+
+ f = freq;
+
+ octave = 5;
+
+ if (f == 0)
+ octave = 0;
+ else if (f < 261)
+ {
+ while (f < 261)
+ {
+ octave--;
+ f <<= 1;
+ }
+ }
+ else if (f > 493)
+ {
+ while (f > 493)
+ {
+ octave++;
+ f >>= 1;
+ }
+ }
+
+ if (octave > 7)
+ octave = 7;
+
+ *fnum = freq * (1 << (20 - octave)) / 49716;
+ *block = octave;
+}
+
+static void opl3_command (int io_addr, unsigned int addr, unsigned int val)
+{
+ int i;
+
+ /*
+ * The original 2-OP synth requires a quite long delay after writing to a
+ * register. The OPL-3 survives with just two INBs
+ */
+
+ outb(((unsigned char) (addr & 0xff)), io_addr);
+
+ if (devc->model != 2)
+ udelay(10);
+ else
+ for (i = 0; i < 2; i++)
+ inb(io_addr);
+
+ outb(((unsigned char) (val & 0xff)), io_addr + 1);
+
+ if (devc->model != 2)
+ udelay(30);
+ else
+ for (i = 0; i < 2; i++)
+ inb(io_addr);
+}
+
+static void opl3_reset(int devno)
+{
+ int i;
+
+ for (i = 0; i < 18; i++)
+ devc->lv_map[i] = i;
+
+ for (i = 0; i < devc->nr_voice; i++)
+ {
+ opl3_command(pv_map[devc->lv_map[i]].ioaddr,
+ KSL_LEVEL + pv_map[devc->lv_map[i]].op[0], 0xff);
+
+ opl3_command(pv_map[devc->lv_map[i]].ioaddr,
+ KSL_LEVEL + pv_map[devc->lv_map[i]].op[1], 0xff);
+
+ if (pv_map[devc->lv_map[i]].voice_mode == 4)
+ {
+ opl3_command(pv_map[devc->lv_map[i]].ioaddr,
+ KSL_LEVEL + pv_map[devc->lv_map[i]].op[2], 0xff);
+
+ opl3_command(pv_map[devc->lv_map[i]].ioaddr,
+ KSL_LEVEL + pv_map[devc->lv_map[i]].op[3], 0xff);
+ }
+
+ opl3_kill_note(devno, i, 0, 64);
+ }
+
+ if (devc->model == 2)
+ {
+ devc->v_alloc->max_voice = devc->nr_voice = 18;
+
+ for (i = 0; i < 18; i++)
+ pv_map[i].voice_mode = 2;
+
+ }
+}
+
+static int opl3_open(int dev, int mode)
+{
+ int i;
+
+ if (devc->busy)
+ return -EBUSY;
+ devc->busy = 1;
+
+ devc->v_alloc->max_voice = devc->nr_voice = (devc->model == 2) ? 18 : 9;
+ devc->v_alloc->timestamp = 0;
+
+ for (i = 0; i < 18; i++)
+ {
+ devc->v_alloc->map[i] = 0;
+ devc->v_alloc->alloc_times[i] = 0;
+ }
+
+ devc->cmask = 0x00; /*
+ * Just 2 OP mode
+ */
+ if (devc->model == 2)
+ opl3_command(devc->right_io, CONNECTION_SELECT_REGISTER, devc->cmask);
+ return 0;
+}
+
+static void opl3_close(int dev)
+{
+ devc->busy = 0;
+ devc->v_alloc->max_voice = devc->nr_voice = (devc->model == 2) ? 18 : 9;
+
+ devc->fm_info.nr_drums = 0;
+ devc->fm_info.perc_mode = 0;
+
+ opl3_reset(dev);
+}
+
+static void opl3_hw_control(int dev, unsigned char *event)
+{
+}
+
+static int opl3_load_patch(int dev, int format, const char __user *addr,
+ int offs, int count, int pmgr_flag)
+{
+ struct sbi_instrument ins;
+
+ if (count <sizeof(ins))
+ {
+ printk(KERN_WARNING "FM Error: Patch record too short\n");
+ return -EINVAL;
+ }
+
+ /*
+ * What the fuck is going on here? We leave junk in the beginning
+ * of ins and then check the field pretty close to that beginning?
+ */
+ if(copy_from_user(&((char *) &ins)[offs], addr + offs, sizeof(ins) - offs))
+ return -EFAULT;
+
+ if (ins.channel < 0 || ins.channel >= SBFM_MAXINSTR)
+ {
+ printk(KERN_WARNING "FM Error: Invalid instrument number %d\n", ins.channel);
+ return -EINVAL;
+ }
+ ins.key = format;
+
+ return store_instr(ins.channel, &ins);
+}
+
+static void opl3_panning(int dev, int voice, int value)
+{
+ devc->voc[voice].panning = value;
+}
+
+static void opl3_volume_method(int dev, int mode)
+{
+}
+
+#define SET_VIBRATO(cell) { \
+ tmp = instr->operators[(cell-1)+(((cell-1)/2)*OFFS_4OP)]; \
+ if (pressure > 110) \
+ tmp |= 0x40; /* Vibrato on */ \
+ opl3_command (map->ioaddr, AM_VIB + map->op[cell-1], tmp);}
+
+static void opl3_aftertouch(int dev, int voice, int pressure)
+{
+ int tmp;
+ struct sbi_instrument *instr;
+ struct physical_voice_info *map;
+
+ if (voice < 0 || voice >= devc->nr_voice)
+ return;
+
+ map = &pv_map[devc->lv_map[voice]];
+
+ DEB(printk("Aftertouch %d\n", voice));
+
+ if (map->voice_mode == 0)
+ return;
+
+ /*
+ * Adjust the amount of vibrato depending the pressure
+ */
+
+ instr = devc->act_i[voice];
+
+ if (!instr)
+ instr = &devc->i_map[0];
+
+ if (devc->voc[voice].mode == 4)
+ {
+ int connection = ((instr->operators[10] & 0x01) << 1) | (instr->operators[10 + OFFS_4OP] & 0x01);
+
+ switch (connection)
+ {
+ case 0:
+ SET_VIBRATO(4);
+ break;
+
+ case 1:
+ SET_VIBRATO(2);
+ SET_VIBRATO(4);
+ break;
+
+ case 2:
+ SET_VIBRATO(1);
+ SET_VIBRATO(4);
+ break;
+
+ case 3:
+ SET_VIBRATO(1);
+ SET_VIBRATO(3);
+ SET_VIBRATO(4);
+ break;
+
+ }
+ /*
+ * Not implemented yet
+ */
+ }
+ else
+ {
+ SET_VIBRATO(1);
+
+ if ((instr->operators[10] & 0x01)) /*
+ * Additive synthesis
+ */
+ SET_VIBRATO(2);
+ }
+}
+
+#undef SET_VIBRATO
+
+static void bend_pitch(int dev, int voice, int value)
+{
+ unsigned char data;
+ int block, fnum, freq;
+ struct physical_voice_info *map;
+
+ map = &pv_map[devc->lv_map[voice]];
+
+ if (map->voice_mode == 0)
+ return;
+
+ devc->voc[voice].bender = value;
+ if (!value)
+ return;
+ if (!(devc->voc[voice].keyon_byte & 0x20))
+ return; /*
+ * Not keyed on
+ */
+
+ freq = compute_finetune(devc->voc[voice].orig_freq, devc->voc[voice].bender, devc->voc[voice].bender_range, 0);
+ devc->voc[voice].current_freq = freq;
+
+ freq_to_fnum(freq, &block, &fnum);
+
+ data = fnum & 0xff; /*
+ * Least significant bits of fnumber
+ */
+ opl3_command(map->ioaddr, FNUM_LOW + map->voice_num, data);
+
+ data = 0x20 | ((block & 0x7) << 2) | ((fnum >> 8) & 0x3);
+ devc->voc[voice].keyon_byte = data;
+ opl3_command(map->ioaddr, KEYON_BLOCK + map->voice_num, data);
+}
+
+static void opl3_controller (int dev, int voice, int ctrl_num, int value)
+{
+ if (voice < 0 || voice >= devc->nr_voice)
+ return;
+
+ switch (ctrl_num)
+ {
+ case CTRL_PITCH_BENDER:
+ bend_pitch(dev, voice, value);
+ break;
+
+ case CTRL_PITCH_BENDER_RANGE:
+ devc->voc[voice].bender_range = value;
+ break;
+
+ case CTL_MAIN_VOLUME:
+ devc->voc[voice].volume = value / 128;
+ break;
+
+ case CTL_PAN:
+ devc->voc[voice].panning = (value * 2) - 128;
+ break;
+ }
+}
+
+static void opl3_bender(int dev, int voice, int value)
+{
+ if (voice < 0 || voice >= devc->nr_voice)
+ return;
+
+ bend_pitch(dev, voice, value - 8192);
+}
+
+static int opl3_alloc_voice(int dev, int chn, int note, struct voice_alloc_info *alloc)
+{
+ int i, p, best, first, avail, best_time = 0x7fffffff;
+ struct sbi_instrument *instr;
+ int is4op;
+ int instr_no;
+
+ if (chn < 0 || chn > 15)
+ instr_no = 0;
+ else
+ instr_no = devc->chn_info[chn].pgm_num;
+
+ instr = &devc->i_map[instr_no];
+ if (instr->channel < 0 || /* Instrument not loaded */
+ devc->nr_voice != 12) /* Not in 4 OP mode */
+ is4op = 0;
+ else if (devc->nr_voice == 12) /* 4 OP mode */
+ is4op = (instr->key == OPL3_PATCH);
+ else
+ is4op = 0;
+
+ if (is4op)
+ {
+ first = p = 0;
+ avail = 6;
+ }
+ else
+ {
+ if (devc->nr_voice == 12) /* 4 OP mode. Use the '2 OP only' operators first */
+ first = p = 6;
+ else
+ first = p = 0;
+ avail = devc->nr_voice;
+ }
+
+ /*
+ * Now try to find a free voice
+ */
+ best = first;
+
+ for (i = 0; i < avail; i++)
+ {
+ if (alloc->map[p] == 0)
+ {
+ return p;
+ }
+ if (alloc->alloc_times[p] < best_time) /* Find oldest playing note */
+ {
+ best_time = alloc->alloc_times[p];
+ best = p;
+ }
+ p = (p + 1) % avail;
+ }
+
+ /*
+ * Insert some kind of priority mechanism here.
+ */
+
+ if (best < 0)
+ best = 0;
+ if (best > devc->nr_voice)
+ best -= devc->nr_voice;
+
+ return best; /* All devc->voc in use. Select the first one. */
+}
+
+static void opl3_setup_voice(int dev, int voice, int chn)
+{
+ struct channel_info *info =
+ &synth_devs[dev]->chn_info[chn];
+
+ opl3_set_instr(dev, voice, info->pgm_num);
+
+ devc->voc[voice].bender = 0;
+ devc->voc[voice].bender_range = info->bender_range;
+ devc->voc[voice].volume = info->controllers[CTL_MAIN_VOLUME];
+ devc->voc[voice].panning = (info->controllers[CTL_PAN] * 2) - 128;
+}
+
+static struct synth_operations opl3_operations =
+{
+ .owner = THIS_MODULE,
+ .id = "OPL",
+ .info = NULL,
+ .midi_dev = 0,
+ .synth_type = SYNTH_TYPE_FM,
+ .synth_subtype = FM_TYPE_ADLIB,
+ .open = opl3_open,
+ .close = opl3_close,
+ .ioctl = opl3_ioctl,
+ .kill_note = opl3_kill_note,
+ .start_note = opl3_start_note,
+ .set_instr = opl3_set_instr,
+ .reset = opl3_reset,
+ .hw_control = opl3_hw_control,
+ .load_patch = opl3_load_patch,
+ .aftertouch = opl3_aftertouch,
+ .controller = opl3_controller,
+ .panning = opl3_panning,
+ .volume_method = opl3_volume_method,
+ .bender = opl3_bender,
+ .alloc_voice = opl3_alloc_voice,
+ .setup_voice = opl3_setup_voice
+};
+
+int opl3_init(int ioaddr, int *osp, struct module *owner)
+{
+ int i;
+ int me;
+
+ if (devc == NULL)
+ {
+ printk(KERN_ERR "opl3: Device control structure not initialized.\n");
+ return -1;
+ }
+
+ if ((me = sound_alloc_synthdev()) == -1)
+ {
+ printk(KERN_WARNING "opl3: Too many synthesizers\n");
+ return -1;
+ }
+
+ devc->nr_voice = 9;
+
+ devc->fm_info.device = 0;
+ devc->fm_info.synth_type = SYNTH_TYPE_FM;
+ devc->fm_info.synth_subtype = FM_TYPE_ADLIB;
+ devc->fm_info.perc_mode = 0;
+ devc->fm_info.nr_voices = 9;
+ devc->fm_info.nr_drums = 0;
+ devc->fm_info.instr_bank_size = SBFM_MAXINSTR;
+ devc->fm_info.capabilities = 0;
+ devc->left_io = ioaddr;
+ devc->right_io = ioaddr + 2;
+
+ if (detected_model <= 2)
+ devc->model = 1;
+ else
+ {
+ devc->model = 2;
+ if (detected_model == 4)
+ devc->is_opl4 = 1;
+ }
+
+ opl3_operations.info = &devc->fm_info;
+
+ synth_devs[me] = &opl3_operations;
+
+ if (owner)
+ synth_devs[me]->owner = owner;
+
+ sequencer_init();
+ devc->v_alloc = &opl3_operations.alloc;
+ devc->chn_info = &opl3_operations.chn_info[0];
+
+ if (devc->model == 2)
+ {
+ if (devc->is_opl4)
+ strcpy(devc->fm_info.name, "Yamaha OPL4/OPL3 FM");
+ else
+ strcpy(devc->fm_info.name, "Yamaha OPL3");
+
+ devc->v_alloc->max_voice = devc->nr_voice = 18;
+ devc->fm_info.nr_drums = 0;
+ devc->fm_info.synth_subtype = FM_TYPE_OPL3;
+ devc->fm_info.capabilities |= SYNTH_CAP_OPL3;
+
+ for (i = 0; i < 18; i++)
+ {
+ if (pv_map[i].ioaddr == USE_LEFT)
+ pv_map[i].ioaddr = devc->left_io;
+ else
+ pv_map[i].ioaddr = devc->right_io;
+ }
+ opl3_command(devc->right_io, OPL3_MODE_REGISTER, OPL3_ENABLE);
+ opl3_command(devc->right_io, CONNECTION_SELECT_REGISTER, 0x00);
+ }
+ else
+ {
+ strcpy(devc->fm_info.name, "Yamaha OPL2");
+ devc->v_alloc->max_voice = devc->nr_voice = 9;
+ devc->fm_info.nr_drums = 0;
+
+ for (i = 0; i < 18; i++)
+ pv_map[i].ioaddr = devc->left_io;
+ };
+ conf_printf2(devc->fm_info.name, ioaddr, 0, -1, -1);
+
+ for (i = 0; i < SBFM_MAXINSTR; i++)
+ devc->i_map[i].channel = -1;
+
+ return me;
+}
+
+EXPORT_SYMBOL(opl3_init);
+EXPORT_SYMBOL(opl3_detect);
+
+static int me;
+
+static int io = -1;
+
+module_param(io, int, 0);
+
+static int __init init_opl3 (void)
+{
+ printk(KERN_INFO "YM3812 and OPL-3 driver Copyright (C) by Hannu Savolainen, Rob Hooft 1993-1996\n");
+
+ if (io != -1) /* User loading pure OPL3 module */
+ {
+ if (!opl3_detect(io, NULL))
+ {
+ return -ENODEV;
+ }
+
+ me = opl3_init(io, NULL, THIS_MODULE);
+ }
+
+ return 0;
+}
+
+static void __exit cleanup_opl3(void)
+{
+ if (devc && io != -1)
+ {
+ if (devc->base) {
+ release_region(devc->base,4);
+ if (devc->is_opl4)
+ release_region(devc->base - 8, 2);
+ }
+ kfree(devc);
+ devc = NULL;
+ sound_unload_synthdev(me);
+ }
+}
+
+module_init(init_opl3);
+module_exit(cleanup_opl3);
+
+#ifndef MODULE
+static int __init setup_opl3(char *str)
+{
+ /* io */
+ int ints[2];
+
+ str = get_options(str, ARRAY_SIZE(ints), ints);
+
+ io = ints[1];
+
+ return 1;
+}
+
+__setup("opl3=", setup_opl3);
+#endif
+MODULE_LICENSE("GPL");