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Diffstat (limited to 'sys/i386/isa/sound/sb_dsp.c')
| -rw-r--r-- | sys/i386/isa/sound/sb_dsp.c | 1128 |
1 files changed, 0 insertions, 1128 deletions
diff --git a/sys/i386/isa/sound/sb_dsp.c b/sys/i386/isa/sound/sb_dsp.c deleted file mode 100644 index 2facd33..0000000 --- a/sys/i386/isa/sound/sb_dsp.c +++ /dev/null @@ -1,1128 +0,0 @@ -/* - * sound/sb_dsp.c - * - * The low level driver for the SoundBlaster DSP chip (SB1.0 to 2.1, SB Pro). - * - * Copyright by Hannu Savolainen 1994 - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. 2. - * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * Modified: Hunyue Yau Jan 6 1994 Added code to support Sound Galaxy NX - * Pro - * - * JRA Gibson April 1995 Code added for MV ProSonic/Jazz 16 in 16 bit mode - */ - -#include <i386/isa/sound/sound_config.h> - -#if (NSB > 0) - -#ifdef SM_WAVE -#define JAZZ16 -#endif - -#include <i386/isa/sound/sbcard.h> -#include <i386/isa/sound/sb_mixer.h> -#include <machine/clock.h> - -#undef SB_TEST_IRQ - -/* - * XXX note -- only one sb-like device is supported until these - * variables are put in a struct sb_unit[] array - */ - - - -int sbc_base = 0; -static int sbc_irq = 0; -static int open_mode = 0; /* Read, write or both */ -int Jazz16_detected = 0; -int sb_no_recording = 0; -static int dsp_count = 0; -static int trigger_bits; - -/* - * The DSP channel can be used either for input or output. Variable - * 'sb_irq_mode' will be set when the program calls read or write first time - * after open. Current version doesn't support mode changes without closing - * and reopening the device. Support for this feature may be implemented in a - * future version of this driver. - */ - -int sb_dsp_ok = 0; /* Set to 1 after successful init */ -static int midi_disabled = 0; -int sb_dsp_highspeed = 0; -int sbc_major = 1, sbc_minor = 0; /* DSP version */ -static int dsp_stereo = 0; -static int dsp_current_speed = DSP_DEFAULT_SPEED; -static int sb16 = 0; - -int sb_midi_mode = NORMAL_MIDI; -int sb_midi_busy = 0; /* 1 if the process has output to * * - * MIDI */ -int sb_dsp_busy = 0; - -volatile int sb_irq_mode = IMODE_NONE; /* or IMODE_INPUT or IMODE_OUTPUT */ - -static int dma8 = 1; - -#ifdef JAZZ16 /* 16 bit support for JAZZ16 */ - -static int dsp_16bit = 0; -static int dma16 = 5; - -static int dsp_set_bits(int arg); -static int initialize_ProSonic16(void); -#endif /* end of 16 bit support for JAZZ16 */ - -int sb_duplex_midi = 0; -static int my_dev = 0; - -volatile int sb_intr_active = 0; - -static int dsp_speed(int); -static int dsp_set_stereo(int mode); -static void sb_dsp_reset(int dev); -sound_os_info *sb_osp = NULL; - -#if defined(CONFIG_MIDI) || defined(CONFIG_AUDIO) -static void dsp_speaker(char state); - -/* - * Common code for the midi and pcm functions - */ - -int -sb_dsp_command(u_char val) -{ - int i; - u_long limit; - - limit = get_time() + hz / 10; /* The timeout is 0.1 secods */ - - /* - * Note! the i<500000 is an emergency exit. The sb_dsp_command() is - * sometimes called while interrupts are disabled. This means that - * the timer is disabled also. However the timeout situation is a - * abnormal condition. Normally the DSP should be ready to accept - * commands after just couple of loops. - */ - - for (i = 0; i < 500000 && get_time() < limit; i++) { - if ((inb(DSP_STATUS) & 0x80) == 0) { - outb(DSP_COMMAND, val); - return 1; - } - } - - printf("SoundBlaster: DSP Command(0x%02x) timeout. IRQ conflict ?\n", val); - return 0; -} - -void -sbintr(int irq) -{ - int status; - -#ifdef CONFIG_SBPRO - if (sb16) { - u_char src = sb_getmixer(IRQ_STAT); /* Interrupt source register */ -#ifdef CONFIG_SB16 - if (src & 3) - sb16_dsp_interrupt(irq); -#ifdef CONFIG_MIDI - if (src & 4) - sb16midiintr(irq); /* SB MPU401 interrupt */ -#endif /* CONFIG_MIDI */ -#endif /* CONFIG_SB16 */ - if (!(src & 1)) - return; /* Not a DSP interupt */ - } -#endif /* CONFIG_SBPRO */ - - status = inb(DSP_DATA_AVAIL); /* Clear interrupt */ - - if (sb_intr_active) - switch (sb_irq_mode) { - case IMODE_OUTPUT: - sb_intr_active = 0; - DMAbuf_outputintr(my_dev, 1); - break; - - case IMODE_INPUT: - sb_intr_active = 0; - DMAbuf_inputintr(my_dev); - /* - * A complete buffer has been input. Let's start new one - */ - break; - - case IMODE_INIT: - sb_intr_active = 0; - break; - - case IMODE_MIDI: -#ifdef CONFIG_MIDI - sb_midi_interrupt(irq); -#endif - break; - - default: - printf("SoundBlaster: Unexpected interrupt\n"); - } -} - - -int -sb_reset_dsp(void) -{ - int loopc; - - outb(DSP_RESET, 1); - DELAY(10); - outb(DSP_RESET, 0); - DELAY(30); - - - for (loopc = 0; loopc < 100 && !(inb(DSP_DATA_AVAIL) & 0x80); loopc++) - DELAY(10); - - if (inb(DSP_READ) != 0xAA) { - printf("sb_reset_dsp failed\n"); - return 0; /* Sorry */ - } - - return 1; -} - -#endif - -#ifdef CONFIG_AUDIO - -static void -dsp_speaker(char state) -{ - if (state) - sb_dsp_command(DSP_CMD_SPKON); - else - sb_dsp_command(DSP_CMD_SPKOFF); -} - -static int -dsp_speed(int speed) -{ - u_char tconst; - u_long flags; - int max_speed = 44100; - - if (speed < 4000) - speed = 4000; - - /* - * Older SB models don't support higher speeds than 22050. - */ - - if (sbc_major < 2 || (sbc_major == 2 && sbc_minor == 0)) - max_speed = 22050; - - /* - * SB models earlier than SB Pro have low limit for the input speed. - */ - if (open_mode != OPEN_WRITE) /* Recording is possible */ - if (sbc_major < 3) /* Limited input speed with these cards */ - if (sbc_major == 2 && sbc_minor > 0) - max_speed = 15000; - else - max_speed = 13000; - - if (speed > max_speed) - speed = max_speed; /* Invalid speed */ - - /* - * Logitech SoundMan Games and Jazz16 cards can support 44.1kHz - * stereo - */ -#if !defined (SM_GAMES) - /* - * Max. stereo speed is 22050 - */ - if (dsp_stereo && speed > 22050 && Jazz16_detected == 0) - speed = 22050; -#endif - - if ((speed > 22050) && sb_midi_busy) { - printf("SB Warning: High speed DSP not possible simultaneously with MIDI output\n"); - speed = 22050; - } - if (dsp_stereo) - speed *= 2; - - /* - * Now the speed should be valid - */ - - if (speed > 22050) { /* High speed mode */ - int tmp; - - tconst = (u_char) ((65536 - ((256000000 + speed / 2) / speed)) >> 8); - sb_dsp_highspeed = 1; - - flags = splhigh(); - if (sb_dsp_command(DSP_CMD_TCONST)) - sb_dsp_command(tconst); - splx(flags); - - tmp = 65536 - (tconst << 8); - speed = (256000000 + tmp / 2) / tmp; - } else { - int tmp; - - sb_dsp_highspeed = 0; - tconst = (256 - ((1000000 + speed / 2) / speed)) & 0xff; - - flags = splhigh(); - if (sb_dsp_command(DSP_CMD_TCONST)) /* Set time constant */ - sb_dsp_command(tconst); - splx(flags); - - tmp = 256 - tconst; - speed = (1000000 + tmp / 2) / tmp; - } - - if (dsp_stereo) - speed /= 2; - - dsp_current_speed = speed; - return speed; -} - -static int -dsp_set_stereo(int mode) -{ - dsp_stereo = 0; - -#ifndef CONFIG_SBPRO - return 0; -#else - if (sbc_major < 3 || sb16) - return 0; /* Sorry no stereo */ - - if (mode && sb_midi_busy) { - printf("SB Warning: Stereo DSP not possible simultaneously with MIDI output\n"); - return 0; - } - dsp_stereo = !!mode; - return dsp_stereo; -#endif -} - -static void -sb_dsp_output_block(int dev, u_long buf, int count, - int intrflag, int restart_dma) -{ - u_long flags; - - if (!sb_irq_mode) - dsp_speaker(ON); - - DMAbuf_start_dma(dev, buf, count, 1); - - sb_irq_mode = 0; - - if (audio_devs[dev]->dmachan1 > 3) - count >>= 1; - count--; - dsp_count = count; - - sb_irq_mode = IMODE_OUTPUT; - if (sb_dsp_highspeed) { - flags = splhigh(); - if (sb_dsp_command(DSP_CMD_HSSIZE)) { /* High speed size */ - sb_dsp_command((u_char) (dsp_count & 0xff)); - sb_dsp_command((u_char) ((dsp_count >> 8) & 0xff)); - sb_dsp_command(DSP_CMD_HSDAC); /* High speed 8 bit DAC */ - } else - printf("SB Error: Unable to start (high speed) DAC\n"); - splx(flags); - } else { - flags = splhigh(); - if (sb_dsp_command(DSP_CMD_DAC8)) { /* 8-bit DAC (DMA) */ - sb_dsp_command((u_char) (dsp_count & 0xff)); - sb_dsp_command((u_char) ((dsp_count >> 8) & 0xff)); - } else - printf("SB Error: Unable to start DAC\n"); - splx(flags); - } - sb_intr_active = 1; -} - -static void -sb_dsp_start_input(int dev, u_long buf, int count, int intrflag, - int restart_dma) -{ - u_long flags; - - if (sb_no_recording) { - printf("SB Error: This device doesn't support recording\n"); - return; - } - /* - * Start a DMA input to the buffer pointed by dmaqtail - */ - - if (!sb_irq_mode) - dsp_speaker(OFF); - - DMAbuf_start_dma(dev, buf, count, 0); - sb_irq_mode = 0; - - if (audio_devs[dev]->dmachan1 > 3) - count >>= 1; - count--; - dsp_count = count; - - sb_irq_mode = IMODE_INPUT; - if (sb_dsp_highspeed) { - flags = splhigh(); - if (sb_dsp_command(DSP_CMD_HSSIZE)) { /* High speed size */ - sb_dsp_command((u_char) (dsp_count & 0xff)); - sb_dsp_command((u_char) ((dsp_count >> 8) & 0xff)); - sb_dsp_command(DSP_CMD_HSADC); /* High speed 8 bit ADC */ - } else - printf("SB Error: Unable to start (high speed) ADC\n"); - splx(flags); - } else { - flags = splhigh(); - if (sb_dsp_command(DSP_CMD_ADC8)) { /* 8-bit ADC (DMA) */ - sb_dsp_command((u_char) (dsp_count & 0xff)); - sb_dsp_command((u_char) ((dsp_count >> 8) & 0xff)); - } else - printf("SB Error: Unable to start ADC\n"); - splx(flags); - } - - sb_intr_active = 1; -} - -static void -sb_dsp_trigger(int dev, int bits) -{ - if (bits == trigger_bits) - return; - - if (!bits) - sb_dsp_command(0xd0); /* Halt DMA */ - else if (bits & sb_irq_mode) - sb_dsp_command(0xd4); /* Continue DMA */ - - trigger_bits = bits; -} - -static void -dsp_cleanup(void) -{ - sb_intr_active = 0; -} - -static int -sb_dsp_prepare_for_input(int dev, int bsize, int bcount) -{ - int fudge = -1; - struct dma_buffparms *dmap = audio_devs[dev]->dmap_in; - - dsp_cleanup(); - dsp_speaker(OFF); - - if (sbc_major == 3) { /* SB Pro */ -#ifdef JAZZ16 - /* - * Select correct dma channel for 16/8 bit acccess - */ - audio_devs[my_dev]->dmachan1 = dsp_16bit ? dma16 : dma8; - if (dsp_stereo) - sb_dsp_command(dsp_16bit ? 0xac : 0xa8); - else - sb_dsp_command(dsp_16bit ? 0xa4 : 0xa0); -#else - /* - * 8 bit only cards use this - */ - if (dsp_stereo) - sb_dsp_command(0xa8); - else - sb_dsp_command(0xa0); -#endif - dsp_speed(dsp_current_speed); /* Speed must be recalculated - * if #channels * changes */ - } - - fudge = audio_devs[my_dev]->dmachan1; - if (dmap->dma_chan != fudge ) { - isa_dma_release( dmap->dma_chan); - isa_dma_acquire(fudge); - dmap->dma_chan = fudge; - } - - trigger_bits = 0; - sb_dsp_command(DSP_CMD_DMAHALT); /* Halt DMA */ - return 0; -} - -static int -sb_dsp_prepare_for_output(int dev, int bsize, int bcount) -{ - - int fudge; - struct dma_buffparms *dmap = audio_devs[dev]->dmap_out; - - dsp_cleanup(); - dsp_speaker(ON); - -#ifdef CONFIG_SBPRO - if (sbc_major == 3) { /* SB Pro */ -#ifdef JAZZ16 - /* - * 16 bit specific instructions - */ - audio_devs[my_dev]->dmachan1 = dsp_16bit ? dma16 : dma8; - - if (Jazz16_detected != 2) /* SM Wave */ - sb_mixer_set_stereo(dsp_stereo); - if (dsp_stereo) - sb_dsp_command(dsp_16bit ? 0xac : 0xa8); - else - sb_dsp_command(dsp_16bit ? 0xa4 : 0xa0); -#else - sb_mixer_set_stereo(dsp_stereo); -#endif - dsp_speed(dsp_current_speed); /* Speed must be recalculated - * if #channels * changes */ - } -#endif - fudge = audio_devs[my_dev]->dmachan1; - - if (dmap->dma_chan != fudge ) { - isa_dma_release( dmap->dma_chan); - isa_dma_acquire(fudge); - dmap->dma_chan = fudge; - } - - trigger_bits = 0; - sb_dsp_command(DSP_CMD_DMAHALT); /* Halt DMA */ - return 0; -} - -static void -sb_dsp_halt_xfer(int dev) -{ -} - -static int -sb_dsp_open(int dev, int mode) -{ - if (!sb_dsp_ok) { - printf("SB Error: SoundBlaster board not installed\n"); - return -(ENXIO); - } - if (sb_no_recording && mode & OPEN_READ) { - printf("SB Warning: Recording not supported by this device\n"); - } - if (sb_intr_active || (sb_midi_busy && sb_midi_mode == UART_MIDI)) { - printf("SB: PCM not possible during MIDI input\n"); - return -(EBUSY); - } - /* - * Allocate 8 bit dma - */ -#ifdef JAZZ16 - audio_devs[my_dev]->dmachan1 = dma8; - /* - * Allocate 16 bit dma - */ - if (Jazz16_detected != 0) - if (dma16 != dma8) { - if (0) { - return -(EBUSY); - } - } -#endif - - sb_irq_mode = IMODE_NONE; - - sb_dsp_busy = 1; - open_mode = mode; - - - return 0; -} - -static void -sb_dsp_close(int dev) -{ -#ifdef JAZZ16 - /* - * Release 16 bit dma channel - */ - if (Jazz16_detected) { - audio_devs[my_dev]->dmachan1 = dma8; - - } -#endif - - dsp_cleanup(); - dsp_speaker(OFF); - sb_dsp_busy = 0; - sb_dsp_highspeed = 0; - open_mode = 0; - -} - -#ifdef JAZZ16 -/* - * Function dsp_set_bits() only required for 16 bit cards - */ -static int -dsp_set_bits(int arg) -{ - if (arg) - if (Jazz16_detected == 0) - dsp_16bit = 0; - else - switch (arg) { - case 8: - dsp_16bit = 0; - break; - case 16: - dsp_16bit = 1; - break; - default: - dsp_16bit = 0; - } - return dsp_16bit ? 16 : 8; -} - -#endif /* ifdef JAZZ16 */ - -static int -sb_dsp_ioctl(int dev, u_int cmd, ioctl_arg arg, int local) -{ - switch (cmd) { - case SOUND_PCM_WRITE_RATE: - if (local) - return dsp_speed((int) arg); - return *(int *) arg = dsp_speed((*(int *) arg)); - break; - - case SOUND_PCM_READ_RATE: - if (local) - return dsp_current_speed; - return *(int *) arg = dsp_current_speed; - break; - - case SOUND_PCM_WRITE_CHANNELS: - if (local) - return dsp_set_stereo((int) arg - 1) + 1; - return *(int *) arg = dsp_set_stereo((*(int *) arg) - 1) + 1; - break; - - case SOUND_PCM_READ_CHANNELS: - if (local) - return dsp_stereo + 1; - return *(int *) arg = dsp_stereo + 1; - break; - - case SNDCTL_DSP_STEREO: - if (local) - return dsp_set_stereo((int) arg); - return *(int *) arg = dsp_set_stereo((*(int *) arg)); - break; - -#ifdef JAZZ16 - /* - * Word size specific cases here. - * SNDCTL_DSP_SETFMT=SOUND_PCM_WRITE_BITS - */ - case SNDCTL_DSP_SETFMT: - if (local) - return dsp_set_bits((int) arg); - return *(int *) arg = dsp_set_bits((*(int *) arg)); - break; - - case SOUND_PCM_READ_BITS: - if (local) - return dsp_16bit ? 16 : 8; - return *(int *) arg = dsp_16bit ? 16 : 8; - break; -#else - case SOUND_PCM_WRITE_BITS: - case SOUND_PCM_READ_BITS: - if (local) - return 8; - return *(int *) (int) arg = 8; /* Only 8 bits/sample supported */ - break; -#endif /* ifdef JAZZ16 */ - - case SOUND_PCM_WRITE_FILTER: - case SOUND_PCM_READ_FILTER: - return -(EINVAL); - break; - - default:; - } - - return -(EINVAL); -} - -static void -sb_dsp_reset(int dev) -{ - u_long flags; - - flags = splhigh(); - - sb_reset_dsp(); - dsp_speed(dsp_current_speed); - dsp_cleanup(); - - splx(flags); -} - -#endif - - -#ifdef JAZZ16 - -/* - * Initialization of a Media Vision ProSonic 16 Soundcard. The function - * initializes a ProSonic 16 like PROS.EXE does for DOS. It sets the base - * address, the DMA-channels, interrupts and enables the joystickport. - * - * Also used by Jazz 16 (same card, different name) - * - * written 1994 by Rainer Vranken E-Mail: - * rvranken@polaris.informatik.uni-essen.de - */ - -u_int -get_sb_byte(void) -{ - int i; - - for (i = 1000; i; i--) - if (inb(DSP_DATA_AVAIL) & 0x80) { - return inb(DSP_READ); - } - return 0xffff; -} - -#ifdef SM_WAVE -/* - * Logitech Soundman Wave detection and initialization by Hannu Savolainen. - * - * There is a microcontroller (8031) in the SM Wave card for MIDI emulation. - * it's located at address MPU_BASE+4. MPU_BASE+7 is a SM Wave specific - * control register for MC reset, SCSI, OPL4 and DSP (future expansion) - * address decoding. Otherwise the SM Wave is just a ordinary MV Jazz16 based - * soundcard. - */ - -static void -smw_putmem(int base, int addr, u_char val) -{ - u_long flags; - - flags = splhigh(); - - outb(base + 1, addr & 0xff); /* Low address bits */ - outb(base + 2, addr >> 8); /* High address bits */ - outb(base, val); /* Data */ - - splx(flags); -} - -static u_char -smw_getmem(int base, int addr) -{ - u_long flags; - u_char val; - - flags = splhigh(); - - outb(base + 1, addr & 0xff); /* Low address bits */ - outb(base + 2, addr >> 8); /* High address bits */ - val = inb(base); /* Data */ - - splx(flags); - return val; -} - -#ifdef SMW_MIDI0001_INCLUDED -#include </sys/i386/isa/sound/smw-midi0001.h> -#else -u_char *smw_ucode = NULL; -int smw_ucodeLen = 0; - -#endif - -static int -initialize_smw(int mpu_base) -{ - - int mp_base = mpu_base + 4; /* Microcontroller base */ - int i; - u_char control; - - - /* - * Reset the microcontroller so that the RAM can be accessed - */ - - control = inb(mpu_base + 7); - outb(mpu_base + 7, control | 3); /* Set last two bits to 1 (?) */ - outb(mpu_base + 7, (control & 0xfe) | 2); /* xxxxxxx0 resets the mc */ - DELAY(3000); /* Wait at least 1ms */ - - outb(mpu_base + 7, control & 0xfc); /* xxxxxx00 enables RAM */ - - /* - * Detect microcontroller by probing the 8k RAM area - */ - smw_putmem(mp_base, 0, 0x00); - smw_putmem(mp_base, 1, 0xff); - DELAY(10); - - if (smw_getmem(mp_base, 0) != 0x00 || smw_getmem(mp_base, 1) != 0xff) { - printf("\nSM Wave: No microcontroller RAM detected (%02x, %02x)\n", - smw_getmem(mp_base, 0), smw_getmem(mp_base, 1)); - return 0; /* No RAM */ - } - /* - * There is RAM so assume it's really a SM Wave - */ - - if (smw_ucodeLen > 0) { - if (smw_ucodeLen != 8192) { - printf("\nSM Wave: Invalid microcode (MIDI0001.BIN) length\n"); - return 1; - } - /* - * Download microcode - */ - - for (i = 0; i < 8192; i++) - smw_putmem(mp_base, i, smw_ucode[i]); - - /* - * Verify microcode - */ - - for (i = 0; i < 8192; i++) - if (smw_getmem(mp_base, i) != smw_ucode[i]) { - printf("SM Wave: Microcode verification failed\n"); - return 0; - } - } - control = 0; -#ifdef SMW_SCSI_IRQ - /* - * Set the SCSI interrupt (IRQ2/9, IRQ3 or IRQ10). The SCSI interrupt - * is disabled by default. - * - * Btw the Zilog 5380 SCSI controller is located at MPU base + 0x10. - */ - { - static u_char scsi_irq_bits[] = - {0, 0, 3, 1, 0, 0, 0, 0, 0, 3, 2, 0, 0, 0, 0, 0}; - - control |= scsi_irq_bits[SMW_SCSI_IRQ] << 6; - } -#endif - -#ifdef SMW_OPL4_ENABLE - /* - * Make the OPL4 chip visible on the PC bus at 0x380. - * - * There is no need to enable this feature since VoxWare doesn't support - * OPL4 yet. Also there is no RAM in SM Wave so enabling OPL4 is - * pretty useless. - */ - control |= 0x10; /* Uses IRQ12 if bit 0x20 == 0 */ - /* control |= 0x20; Uncomment this if you want to use IRQ7 */ -#endif - - outb(mpu_base + 7, control | 0x03); /* xxxxxx11 restarts */ - return 1; -} - -#endif - -static int -initialize_ProSonic16(void) -{ - int x; - static u_char int_translat[16] = - {0, 0, 2, 3, 0, 1, 0, 4, 0, 2, 5, 0, 0, 0, 0, 6}, - dma_translat[8] = - {0, 1, 0, 2, 0, 3, 0, 4}; - - struct address_info *mpu_config; - - int mpu_base, mpu_irq; - - if ((mpu_config = sound_getconf(SNDCARD_MPU401))) { - mpu_base = mpu_config->io_base; - mpu_irq = mpu_config->irq; - } else { - mpu_base = mpu_irq = 0; - } - - outb(0x201, 0xAF); /* ProSonic/Jazz16 wakeup */ - DELAY(15000); /* wait at least 10 milliseconds */ - outb(0x201, 0x50); - outb(0x201, (sbc_base & 0x70) | ((mpu_base & 0x30) >> 4)); - - if (sb_reset_dsp()) { /* OK. We have at least a SB */ - - /* Check the version number of ProSonic (I guess) */ - - if (!sb_dsp_command(0xFA)) - return 1; - if (get_sb_byte() != 0x12) - return 1; - - if (sb_dsp_command(0xFB) && /* set DMA-channels and Interrupts */ - sb_dsp_command((dma_translat[JAZZ_DMA16]<<4)|dma_translat[dma8]) && - sb_dsp_command((int_translat[mpu_irq]<<4)|int_translat[sbc_irq])) { - Jazz16_detected = 1; - if (mpu_base == 0) - printf("Jazz16: No MPU401 devices configured - MIDI port not initialized\n"); - -#ifdef SM_WAVE - if (mpu_base != 0) - if (initialize_smw(mpu_base)) - Jazz16_detected = 2; -#endif - sb_dsp_disable_midi(); - } - return 1; /* There was at least a SB */ - } - return 0; /* No SB or ProSonic16 detected */ -} - -#endif /* ifdef JAZZ16 */ - -int -sb_dsp_detect(struct address_info * hw_config) -{ - sbc_base = hw_config->io_base; - sbc_irq = hw_config->irq; - sb_osp = hw_config->osp; - - - if (sb_dsp_ok) - return 0; /* Already initialized */ - dma8 = hw_config->dma; - -#ifdef JAZZ16 - dma16 = JAZZ_DMA16; - - if (!initialize_ProSonic16()) - return 0; -#else - if (!sb_reset_dsp()) - return 0; -#endif - - return 1; /* Detected */ -} - -#ifdef CONFIG_AUDIO -static struct audio_operations sb_dsp_operations = -{ - "SoundBlaster", - NOTHING_SPECIAL, - AFMT_U8, /* Just 8 bits. Poor old SB */ - NULL, - sb_dsp_open, - sb_dsp_close, - sb_dsp_output_block, - sb_dsp_start_input, - sb_dsp_ioctl, - sb_dsp_prepare_for_input, - sb_dsp_prepare_for_output, - sb_dsp_reset, - sb_dsp_halt_xfer, - NULL, /* local_qlen */ - NULL, /* copy_from_user */ - NULL, - NULL, - sb_dsp_trigger -}; - -#endif - -void -sb_dsp_init(struct address_info * hw_config) -{ - int i; - char *fmt = NULL ; - -#ifdef CONFIG_SBPRO - int mixer_type = 0; - -#endif - - sb_osp = hw_config->osp; - sbc_major = sbc_minor = 0; - sb_dsp_command(DSP_CMD_GETVER); /* Get version */ - - for (i = 10000; i; i--) { /* perhaps wait longer on a fast machine ? */ - if (inb(DSP_DATA_AVAIL) & 0x80) { /* wait for Data Ready */ - if (sbc_major == 0) - sbc_major = inb(DSP_READ); - else { - sbc_minor = inb(DSP_READ); - break; - } - } else - DELAY(20); - } - - if (sbc_major == 0) { - printf("\n\nFailed to get SB version (%x) - possible I/O conflict\n\n", - inb(DSP_DATA_AVAIL)); - sbc_major = 1; - } - if (sbc_major == 2 || sbc_major == 3) - sb_duplex_midi = 1; - - if (sbc_major == 4) - sb16 = 1; - - if (sbc_major == 3 && sbc_minor == 1) { - int ess_major = 0, ess_minor = 0; - - /* - * Try to detect ESS chips. - */ - - sb_dsp_command(DSP_CMD_GETID); /* Return identification bytes. */ - - for (i = 1000; i; i--) { - if (inb(DSP_DATA_AVAIL) & 0x80) { /* wait for Data Ready */ - if (ess_major == 0) - ess_major = inb(DSP_READ); - else { - ess_minor = inb(DSP_READ); - break; - } - } - } - - if (ess_major == 0x48 && (ess_minor & 0xf0) == 0x80) - printf("Hmm... Could this be an ESS488 based card (rev %d)\n", - ess_minor & 0x0f); - else if (ess_major == 0x68 && (ess_minor & 0xf0) == 0x80) - printf("Hmm... Could this be an ESS688 based card (rev %d)\n", - ess_minor & 0x0f); - } - if (snd_set_irq_handler(sbc_irq, sbintr, sb_osp) < 0) - printf("sb_dsp: Can't allocate IRQ\n");; - -#ifdef CONFIG_SBPRO - if (sbc_major >= 3) - mixer_type = sb_mixer_init(sbc_major); -#else - if (sbc_major >= 3) - printf("\nNOTE! SB Pro support required with your soundcard!\n"); -#endif - - -#ifdef CONFIG_AUDIO - if (sbc_major >= 3) { - if (Jazz16_detected) { - if (Jazz16_detected == 2) - fmt = "SoundMan Wave %d.%d"; - else - fmt = "MV Jazz16 %d.%d"; - sb_dsp_operations.format_mask |= AFMT_S16_LE; /* 16 bits */ - } else -#ifdef __SGNXPRO__ - if (mixer_type == 2) - fmt = "Sound Galaxy NX Pro %d.%d" ; - else -#endif /* __SGNXPRO__ */ - if (sbc_major == 4) - fmt = "SoundBlaster 16 %d.%d"; - else - fmt = "SoundBlaster Pro %d.%d"; - } else { - fmt = "SoundBlaster %d.%d" ; - } - - snprintf(sb_dsp_operations.name, sizeof(sb_dsp_operations.name), - fmt, sbc_major, sbc_minor); - conf_printf(sb_dsp_operations.name, hw_config); - -#if defined(CONFIG_SB16) && defined(CONFIG_SBPRO) - if (!sb16) /* There is a better driver for SB16 */ -#endif /* CONFIG_SB16 && CONFIG_SBPRO */ - if (num_audiodevs < MAX_AUDIO_DEV) { - audio_devs[my_dev = num_audiodevs++] = &sb_dsp_operations; - audio_devs[my_dev]->buffsize = DSP_BUFFSIZE; - dma8 = audio_devs[my_dev]->dmachan1 = hw_config->dma; - audio_devs[my_dev]->dmachan2 = -1; -#ifdef JAZZ16 - /* - * Allocate 16 bit dma - */ - if (Jazz16_detected != 0) - if (dma16 != dma8) { - if (0) { - printf("Jazz16: Can't allocate 16 bit DMA channel\n"); - } - } -#endif /* JAZZ16 */ - } else - printf("SB: Too many DSP devices available\n"); -#else - conf_printf("SoundBlaster (configured without audio support)", hw_config); -#endif - -#ifdef CONFIG_MIDI - if (!midi_disabled && !sb16) { - /* - * Midi don't work in the SB emulation mode of PAS, - * SB16 has better midi interface - */ - sb_midi_init(sbc_major); - } -#endif /* CONFIG_MIDI */ - sb_dsp_ok = 1; -} - -void -sb_dsp_disable_midi(void) -{ - midi_disabled = 1; -} -#endif |
