diff options
Diffstat (limited to 'sys/i386/isa/sound/sb16_dsp.c')
| -rw-r--r-- | sys/i386/isa/sound/sb16_dsp.c | 561 |
1 files changed, 0 insertions, 561 deletions
diff --git a/sys/i386/isa/sound/sb16_dsp.c b/sys/i386/isa/sound/sb16_dsp.c deleted file mode 100644 index c78ce24..0000000 --- a/sys/i386/isa/sound/sb16_dsp.c +++ /dev/null @@ -1,561 +0,0 @@ -/* - * sound/sb16_dsp.c - * - * The low level driver for the SoundBlaster DSP chip. - * - * (C) 1993 J. Schubert (jsb@sth.ruhr-uni-bochum.de) - * - * based on SB-driver by (C) Hannu Savolainen - * - * 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. - * - * $FreeBSD$ - * - */ - -#define DEB(x) -#define DEB1(x) -#include <i386/isa/sound/sound_config.h> -#include "sb.h" -#include <i386/isa/sound/sb_mixer.h> -#include <i386/isa/sound/sbcard.h> - -#if defined(CONFIG_SB16) && (NSB > 0) && defined(CONFIG_AUDIO) && defined(CONFIG_SBPRO) - - -extern sound_os_info *sb_osp; -extern int sbc_base; - -static int sb16_dsp_ok = 0; -static int dsp_16bit = 0; -static int dsp_stereo = 0; -static int dsp_current_speed = 8000; -static int dsp_busy = 0; -static int dma16, dma8; - - -static int trigger_bits = 0; -static u_long dsp_count = 0; - -static int irq_mode = IMODE_NONE; -static int my_dev = 0; - -static volatile int intr_active = 0; - -static int sb16_dsp_open(int dev, int mode); -static void sb16_dsp_close(int dev); -static void sb16_dsp_output_block(int dev, u_long buf, int count, int intrflag, int dma_restart); -static void sb16_dsp_start_input(int dev, u_long buf, int count, int intrflag, int dma_restart); -static int sb16_dsp_ioctl(int dev, u_int cmd, ioctl_arg arg, int local); -static int sb16_dsp_prepare_for_input(int dev, int bsize, int bcount); -static int sb16_dsp_prepare_for_output(int dev, int bsize, int bcount); -static void sb16_dsp_reset(int dev); -static void sb16_dsp_halt(int dev); -static void sb16_dsp_trigger(int dev, int bits); -static int dsp_set_speed(int); -static int dsp_set_stereo(int); -static void dsp_cleanup(void); - -static struct audio_operations sb16_dsp_operations = -{ - "SoundBlaster 16", - DMA_AUTOMODE, - AFMT_U8 | AFMT_S16_LE, - NULL, - sb16_dsp_open, - sb16_dsp_close, - sb16_dsp_output_block, - sb16_dsp_start_input, - sb16_dsp_ioctl, - sb16_dsp_prepare_for_input, - sb16_dsp_prepare_for_output, - sb16_dsp_reset, - sb16_dsp_halt, - NULL, - NULL, - NULL, - NULL, - sb16_dsp_trigger -}; - -static int -sb_dsp_command01(u_char val) -{ - int i = 1 << 16; - - while (--i & (!inb(DSP_STATUS) & 0x80)); - if (!i) - printf("SB16 sb_dsp_command01 Timeout\n"); - return sb_dsp_command(val); -} - -static int -dsp_set_speed(int mode) -{ - DEB(printf("dsp_set_speed(%d)\n", mode)); - if (mode) { - RANGE (mode, 5000, 44100); - dsp_current_speed = mode; - } - return mode; -} - -static int -dsp_set_stereo(int mode) -{ - DEB(printf("dsp_set_stereo(%d)\n", mode)); - dsp_stereo = mode; - return mode; -} - -static int -dsp_set_bits(int arg) -{ - DEB(printf("dsp_set_bits(%d)\n", arg)); - - if (arg) - dsp_16bit = (arg == 16) ? 1 : 0 ; - return dsp_16bit ? 16 : 8; -} - -static int -sb16_dsp_ioctl(int dev, u_int cmd, ioctl_arg arg, int local) -{ - switch (cmd) { - case SOUND_PCM_WRITE_RATE: - if (local) - return dsp_set_speed((int) arg); - return *(int *) arg = dsp_set_speed((*(int *) arg)); - - case SOUND_PCM_READ_RATE: - if (local) - return dsp_current_speed; - return *(int *) arg = dsp_current_speed; - - case SNDCTL_DSP_STEREO: - if (local) - return dsp_set_stereo((int) arg); - return *(int *) arg = dsp_set_stereo((*(int *) arg)); - - 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; - - case SOUND_PCM_READ_CHANNELS: - if (local) - return dsp_stereo + 1; - return *(int *) arg = dsp_stereo + 1; - - case SNDCTL_DSP_SETFMT: - if (local) - return dsp_set_bits((int) arg); - return *(int *) arg = dsp_set_bits((*(int *) arg)); - - case SOUND_PCM_READ_BITS: - if (local) - return dsp_16bit ? 16 : 8; - return *(int *) arg = dsp_16bit ? 16 : 8; - - case SOUND_PCM_WRITE_FILTER: /* NOT YET IMPLEMENTED */ - if ((*(int *) arg) > 1) - return *(int *) arg = -(EINVAL); - - case FIOASYNC: - if (local) - return 1; - return *(int *) arg = 1; - - case FIONBIO: - if (local) - return 1; - return *(int *) arg = 1; - - default: - return -(EINVAL); - } - - return -(EINVAL); -} - -static int -sb16_dsp_open(int dev, int mode) -{ - DEB(printf("sb16_dsp_open()\n")); - - if (!sb16_dsp_ok) { - printf("SB16 Error: SoundBlaster board not installed\n"); - return -(ENXIO); - } - if (intr_active) - return -(EBUSY); - - sb_reset_dsp(); - - - irq_mode = IMODE_NONE; - dsp_busy = 1; - trigger_bits = 0; - - return 0; -} - -static void -sb16_dsp_close(int dev) -{ - u_long flags; - - DEB(printf("sb16_dsp_close()\n")); - sb_dsp_command01(0xd9); - sb_dsp_command01(0xd5); - - flags = splhigh(); - - audio_devs[dev]->dmachan1 = dma8; - - dsp_cleanup(); - dsp_busy = 0; - - - splx(flags); -} - -static void -sb16_dsp_output_block(int dev, u_long buf, int count, int intrflag, int dma_restart) -{ - u_long flags, cnt; - - - cnt = count; - if (dsp_16bit) - cnt >>= 1; - cnt--; - - if (audio_devs[dev]->flags & DMA_AUTOMODE && intrflag && cnt==dsp_count) { - irq_mode = IMODE_OUTPUT; - intr_active = 1; - return; /* Auto mode on. No need to react */ - } - flags = splhigh(); - - if (dma_restart) { - - sb16_dsp_halt(dev); - DMAbuf_start_dma(dev, buf, count, 1); - } - - - sb_dsp_command(0x41); - sb_dsp_command((u_char) ((dsp_current_speed >> 8) & 0xff)); - sb_dsp_command((u_char) (dsp_current_speed & 0xff)); - sb_dsp_command((u_char) (dsp_16bit ? 0xb6 : 0xc6)); - dsp_count = cnt; - sb_dsp_command((u_char) ((dsp_stereo ? 0x20 : 0) + - (dsp_16bit ? 0x10 : 0))); - sb_dsp_command((u_char) (cnt & 0xff)); - sb_dsp_command((u_char) (cnt >> 8)); - - irq_mode = IMODE_OUTPUT; - intr_active = 1; - splx(flags); -} - -static void -sb16_dsp_start_input(int dev, u_long buf, int count, int intrflag, int dma_restart) -{ - u_long flags, cnt; - - cnt = count; - if (dsp_16bit) - cnt >>= 1; - cnt--; - - if (audio_devs[dev]->flags & DMA_AUTOMODE && intrflag && cnt == dsp_count) { - irq_mode = IMODE_INPUT; - intr_active = 1; - return; /* Auto mode on. No need to react */ - } - flags = splhigh(); - - if (dma_restart) { - sb_reset_dsp(); - DMAbuf_start_dma(dev, buf, count, 0); - } - sb_dsp_command(0x42); - sb_dsp_command((u_char) ((dsp_current_speed >> 8) & 0xff)); - sb_dsp_command((u_char) (dsp_current_speed & 0xff)); - sb_dsp_command((u_char) (dsp_16bit ? 0xbe : 0xce)); - dsp_count = cnt; - sb_dsp_command((u_char) ((dsp_stereo ? 0x20 : 0) + - (dsp_16bit ? 0x10 : 0))); - sb_dsp_command01((u_char) (cnt & 0xff)); - sb_dsp_command((u_char) (cnt >> 8)); - - irq_mode = IMODE_INPUT; - intr_active = 1; - splx(flags); -} - -static int -sb16_dsp_prepare_for_input(int dev, int bsize, int bcount) -{ - int fudge; - struct dma_buffparms *dmap = audio_devs[dev]->dmap_in; - - audio_devs[my_dev]->dmachan2 = dsp_16bit ? dma16 : dma8; - - - fudge = audio_devs[my_dev]->dmachan2 ; - - if (dmap->dma_chan != fudge ) { - isa_dma_release( dmap->dma_chan); - isa_dma_acquire(fudge); - dmap->dma_chan = fudge; - } - - dsp_count = 0; - dsp_cleanup(); - if (dsp_16bit) - sb_dsp_command(0xd5); /* Halt DMA until trigger() is called */ - else - sb_dsp_command(0xd0); /* Halt DMA until trigger() is called */ - - trigger_bits = 0; - return 0; -} - -static int -sb16_dsp_prepare_for_output(int dev, int bsize, int bcount) -{ - int fudge = dsp_16bit ? dma16 : dma8; - struct dma_buffparms *dmap = audio_devs[dev]->dmap_out; - - if (dmap->dma_chan != fudge ) { - isa_dma_release( dmap->dma_chan); - isa_dma_acquire(fudge); - dmap->dma_chan = fudge; - } - - audio_devs[my_dev]->dmachan1 = fudge; - - dsp_count = 0; - dsp_cleanup(); - if (dsp_16bit) - sb_dsp_command(0xd5); /* Halt DMA until trigger() is called */ - else - sb_dsp_command(0xd0); /* Halt DMA until trigger() is called */ - - trigger_bits = 0; - return 0; -} - -static void -sb16_dsp_trigger(int dev, int bits) -{ - if (bits != 0) - bits = 1; - - if (bits == trigger_bits) /* No change */ - return; - - trigger_bits = bits; - - if (!bits) - sb_dsp_command(0xd0); /* Halt DMA */ - else if (bits & irq_mode) { - if (dsp_16bit) - sb_dsp_command(0xd6); /* Continue 16bit DMA */ - else - sb_dsp_command(0xd4); /* Continue 8bit DMA */ - } -} - -static void -dsp_cleanup(void) -{ - irq_mode = IMODE_NONE; - intr_active = 0; -} - -static void -sb16_dsp_reset(int dev) -{ - u_long flags; - - flags = splhigh(); - - sb_reset_dsp(); - dsp_cleanup(); - - splx(flags); -} - -static void -sb16_dsp_halt(int dev) -{ - - if (dsp_16bit) { - sb_dsp_command01(0xd9); - sb_dsp_command01(0xd5); - } else { - sb_dsp_command01(0xda); - sb_dsp_command01(0xd0); - } - - -} - -static void -set_irq_hw(int level) -{ - int ival; - - switch (level) { -#ifdef PC98 - case 5: - ival = 8; - break; - case 3: - ival = 1; - break; - case 10: - ival = 2; - break; -#else - case 5: - ival = 2; - break; - case 7: - ival = 4; - break; - case 9: - ival = 1; - break; - case 10: - ival = 8; - break; -#endif - default: - printf("SB16_IRQ_LEVEL %d does not exist\n", level); - return; - } - sb_setmixer(IRQ_NR, ival); -} - -void -sb16_dsp_init(struct address_info * hw_config) -{ - if (sbc_major < 4) - return; /* Not a SB16 */ - - snprintf(sb16_dsp_operations.name, sizeof(sb16_dsp_operations.name), - "SoundBlaster 16 %d.%d", sbc_major, sbc_minor); - - conf_printf(sb16_dsp_operations.name, hw_config); - - if (num_audiodevs < MAX_AUDIO_DEV) { - audio_devs[my_dev = num_audiodevs++] = &sb16_dsp_operations; - audio_devs[my_dev]->dmachan1 = dma8; - audio_devs[my_dev]->buffsize = DSP_BUFFSIZE; - - } else - printf("SB: Too many DSP devices available\n"); - sb16_dsp_ok = 1; - return; -} - -int -sb16_dsp_detect(struct address_info * hw_config) -{ - struct address_info *sb_config; - - if (sb16_dsp_ok) - return 1; /* Can't drive two cards */ - - if (!(sb_config = sound_getconf(SNDCARD_SB))) { - printf("SB16 Error: Plain SB not configured\n"); - return 0; - } - /* - * sb_setmixer(OPSW,0xf); if(sb_getmixer(OPSW)!=0xf) return 0; - */ - - if (!sb_reset_dsp()) - return 0; - - if (sbc_major < 4) /* Set by the plain SB driver */ - return 0; /* Not a SB16 */ - -#ifdef PC98 - hw_config->dma = sb_config->dma; -#else - if (hw_config->dma < 4) - if (hw_config->dma != sb_config->dma) { - printf("SB16 Error: Invalid DMA channel %d/%d\n", - sb_config->dma, hw_config->dma); - return 0; - } -#endif - dma16 = hw_config->dma; - dma8 = sb_config->dma; - /* hw_config->irq = 0; sb_config->irq; - hw_config->io_base = sb_config->io_base; - */ - set_irq_hw(sb_config->irq); - -#ifdef PC98 - sb_setmixer (DMA_NR, hw_config->dma == 0 ? 1 : 2); -#else - sb_setmixer(DMA_NR, (1 << hw_config->dma) | (1 << sb_config->dma)); -#endif - - DEB(printf("SoundBlaster 16: IRQ %d DMA %d OK\n", - sb_config->irq, hw_config->dma)); - - /* - * dsp_showmessage(0xe3,99); - */ - sb16_dsp_ok = 1; - return 1; -} - -void -sb16_dsp_interrupt(int unused) -{ - int data; - - data = inb(DSP_DATA_AVL16); /* Interrupt acknowledge */ - - if (intr_active) - switch (irq_mode) { - case IMODE_OUTPUT: - DMAbuf_outputintr(my_dev, 1); - break; - - case IMODE_INPUT: - DMAbuf_inputintr(my_dev); - break; - - default: - printf("SoundBlaster: Unexpected interrupt\n"); - } -} -#endif |
