/* * * AD1816 lowlevel sound driver for Linux 2.2.0 and above * * Copyright (C) 1998 by Thorsten Knabe * * Based on the CS4232/AD1848 driver Copyright (C) by Hannu Savolainen 1993-1996 * * This software is still under development. New versions of the driver * are available from: * http://www.student.informatik.tu-darmstadt.de/~tek/projects/linux.html * or http://www.tu-darmstadt.de/~tek01/projects/linux.html * * Please report any bugs to: tek@rbg.informatik.tu-darmstadt.de * * * version: 1.3 * cvs: $Header: /home/tek/CVSROOT/sound22/ad1816.c,v 1.3 1999/04/18 16:41:41 tek Exp $ * status: experimental * date: 1999/4/18 * * Changes: * Oleg Drokin: Some cleanup of load/unload functions. 1998/11/24 * * Thorsten Knabe: attach and unload rewritten, * some argument checks added 1998/11/30 * * Thorsten Knabe: Buggy isa bridge workaround added 1999/01/16 * * David Moews/Thorsten Knabe: Introduced options * parameter. Added slightly modified patch from * David Moews to disable dsp audio sources by setting * bit 0 of options parameter. This seems to be * required by some Aztech/Newcom SC-16 cards. 1999/04/18 * * Christoph Hellwig: Adapted to module_init/module_exit. 2000/03/03 */ #include #include #include #include "soundmodule.h" #include "sound_config.h" #define DEBUGNOISE(x) #define DEBUGINFO(x) #define DEBUGLOG(x) x #define DEBUGWARN(x) x #define CHECK_FOR_POWER { int timeout=100; \ while (timeout > 0 && (inb(devc->base)&0x80)!= 0x80) {\ timeout--; \ } \ if (timeout==0) {\ printk("ad1816: Check for power failed in %s line: %d\n",__FILE__,__LINE__); \ } \ } /* structure to hold device specific information */ typedef struct { int base; /* set in attach */ int irq; int dma_playback; int dma_capture; int speed; /* open */ int channels; int audio_format; unsigned char format_bits; int audio_mode; int opened; int recmask; /* setup */ int supported_devices; int supported_rec_devices; unsigned short levels[SOUND_MIXER_NRDEVICES]; int dev_no; /* this is the # in audio_devs and NOT in ad1816_info */ int irq_ok; int *osp; } ad1816_info; static int nr_ad1816_devs = 0; static int ad1816_clockfreq=33000; static int options=0; /* for backward mapping of irq to sound device */ static volatile char irq2dev[17] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}; /* supported audio formats */ static int ad_format_mask = AFMT_U8 | AFMT_S16_LE | AFMT_S16_BE | AFMT_MU_LAW | AFMT_A_LAW; /* array of device info structures */ static ad1816_info dev_info[MAX_AUDIO_DEV]; /* ------------------------------------------------------------------- */ /* functions for easier access to inderect registers */ static int ad_read (ad1816_info * devc, int reg) { unsigned long flags; int result; CHECK_FOR_POWER; save_flags (flags); /* make register access atomic */ cli (); outb ((unsigned char) (reg & 0x3f), devc->base+0); result = inb(devc->base+2); result+= inb(devc->base+3)<<8; restore_flags (flags); return (result); } static void ad_write (ad1816_info * devc, int reg, int data) { unsigned long flags; CHECK_FOR_POWER; save_flags (flags); /* make register access atomic */ cli (); outb ((unsigned char) (reg & 0xff), devc->base+0); outb ((unsigned char) (data & 0xff),devc->base+2); outb ((unsigned char) ((data>>8)&0xff),devc->base+3); restore_flags (flags); } /* ------------------------------------------------------------------- */ /* function interface required by struct audio_driver */ static void ad1816_halt_input (int dev) { unsigned long flags; ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; unsigned char buffer; DEBUGINFO (printk("ad1816: halt_input called\n")); save_flags (flags); cli (); if(!isa_dma_bridge_buggy) { disable_dma(audio_devs[dev]->dmap_in->dma); } buffer=inb(devc->base+9); if (buffer & 0x01) { /* disable capture */ outb(buffer & ~0x01,devc->base+9); } if(!isa_dma_bridge_buggy) { enable_dma(audio_devs[dev]->dmap_in->dma); } /* Clear interrupt status */ outb (~0x40, devc->base+1); devc->audio_mode &= ~PCM_ENABLE_INPUT; restore_flags (flags); } static void ad1816_halt_output (int dev) { unsigned long flags; ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; unsigned char buffer; DEBUGINFO (printk("ad1816: halt_output called!\n")); save_flags (flags); cli (); /* Mute pcm output */ ad_write(devc, 4, ad_read(devc,4)|0x8080); if(!isa_dma_bridge_buggy) { disable_dma(audio_devs[dev]->dmap_out->dma); } buffer=inb(devc->base+8); if (buffer & 0x01) { /* disable capture */ outb(buffer & ~0x01,devc->base+8); } if(!isa_dma_bridge_buggy) { enable_dma(audio_devs[dev]->dmap_out->dma); } /* Clear interrupt status */ outb ((unsigned char)~0x80, devc->base+1); devc->audio_mode &= ~PCM_ENABLE_OUTPUT; restore_flags (flags); } static void ad1816_output_block (int dev, unsigned long buf, int count, int intrflag) { unsigned long flags; unsigned long cnt; ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; DEBUGINFO(printk("ad1816: output_block called buf=%ld count=%d flags=%d\n",buf,count,intrflag)); cnt = count/4 - 1; save_flags (flags); cli (); /* set transfer count */ ad_write (devc, 8, cnt & 0xffff); devc->audio_mode |= PCM_ENABLE_OUTPUT; restore_flags (flags); } static void ad1816_start_input (int dev, unsigned long buf, int count, int intrflag) { unsigned long flags; unsigned long cnt; ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; DEBUGINFO(printk("ad1816: start_input called buf=%ld count=%d flags=%d\n",buf,count,intrflag)); cnt = count/4 - 1; save_flags (flags); /* make register access atomic */ cli (); /* set transfer count */ ad_write (devc, 10, cnt & 0xffff); devc->audio_mode |= PCM_ENABLE_INPUT; restore_flags (flags); } static int ad1816_ioctl (int dev, unsigned int cmd, caddr_t arg) { return -(EINVAL); } static int ad1816_prepare_for_input (int dev, int bsize, int bcount) { unsigned long flags; unsigned int freq; ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; unsigned char fmt_bits; DEBUGINFO (printk ("ad1816: prepare_for_input called: bsize=%d bcount=%d\n",bsize,bcount)); save_flags (flags); cli (); fmt_bits= (devc->format_bits&0x7)<<3; /* set mono/stereo mode */ if (devc->channels > 1) { fmt_bits |=0x4; } /* set Mono/Stereo in playback/capture register */ outb( (inb(devc->base+8) & ~0x3C)|fmt_bits, devc->base+8); outb( (inb(devc->base+9) & ~0x3C)|fmt_bits, devc->base+9); /* If compiled into kernel, AD1816_CLOCK is defined, so use it */ #ifdef AD1816_CLOCK ad1816_clockfreq=AD1816_CLOCK; #endif /* capture/playback frequency correction for soundcards with clock chips != 33MHz (allowed range 5 - 100 kHz) */ if (ad1816_clockfreq<5000 || ad1816_clockfreq>100000) { ad1816_clockfreq=33000; } freq=((unsigned int)devc->speed*33000)/ad1816_clockfreq; /* write playback/capture speeds */ ad_write (devc, 2, freq & 0xffff); ad_write (devc, 3, freq & 0xffff); restore_flags (flags); ad1816_halt_input(dev); return 0; } static int ad1816_prepare_for_output (int dev, int bsize, int bcount) { unsigned long flags; unsigned int freq; ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; unsigned char fmt_bits; DEBUGINFO (printk ("ad1816: prepare_for_output called: bsize=%d bcount=%d\n",bsize,bcount)); save_flags (flags); /* make register access atomic */ cli (); fmt_bits= (devc->format_bits&0x7)<<3; /* set mono/stereo mode */ if (devc->channels > 1) { fmt_bits |=0x4; } /* write format bits to playback/capture registers */ outb( (inb(devc->base+8) & ~0x3C)|fmt_bits, devc->base+8); outb( (inb(devc->base+9) & ~0x3C)|fmt_bits, devc->base+9); #ifdef AD1816_CLOCK ad1816_clockfreq=AD1816_CLOCK; #endif /* capture/playback frequency correction for soundcards with clock chips != 33MHz (allowed range 5 - 100 kHz)*/ if (ad1816_clockfreq<5000 || ad1816_clockfreq>100000) { ad1816_clockfreq=33000; } freq=((unsigned int)devc->speed*33000)/ad1816_clockfreq; /* write playback/capture speeds */ ad_write (devc, 2, freq & 0xffff); ad_write (devc, 3, freq & 0xffff); restore_flags (flags); ad1816_halt_output(dev); return 0; } static void ad1816_trigger (int dev, int state) { unsigned long flags; ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; DEBUGINFO (printk("ad1816: trigger called! (devc=%d,devc->base=%d\n",devc,devc->base)); /* mode may have changed */ save_flags (flags); /* make register access atomic */ cli (); /* mask out modes not specified on open call */ state &= devc->audio_mode; /* setup soundchip to new io-mode */ if (state & PCM_ENABLE_INPUT) { /* enable capture */ outb(inb(devc->base+9)|0x01, devc->base+9); } else { /* disable capture */ outb(inb(devc->base+9)&~0x01, devc->base+9); } if (state & PCM_ENABLE_OUTPUT) { /* enable playback */ outb(inb(devc->base+8)|0x01, devc->base+8); /* unmute pcm output */ ad_write(devc, 4, ad_read(devc,4)&~0x8080); } else { /* mute pcm output */ ad_write(devc, 4, ad_read(devc,4)|0x8080); /* disable capture */ outb(inb(devc->base+8)&~0x01, devc->base+8); } restore_flags (flags); } /* halt input & output */ static void ad1816_halt (int dev) { ad1816_halt_input(dev); ad1816_halt_output(dev); } static void ad1816_reset (int dev) { ad1816_halt (dev); } /* set playback speed */ static int ad1816_set_speed (int dev, int arg) { ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; if (arg == 0) { return devc->speed; } /* range checking */ if (arg < 4000) { arg = 4000; } if (arg > 55000) { arg = 55000; } devc->speed = arg; return devc->speed; } static unsigned int ad1816_set_bits (int dev, unsigned int arg) { ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; static struct format_tbl { int format; unsigned char bits; } format2bits[] = { { 0, 0 } , { AFMT_MU_LAW, 1 } , { AFMT_A_LAW, 3 } , { AFMT_IMA_ADPCM, 0 } , { AFMT_U8, 0 } , { AFMT_S16_LE, 2 } , { AFMT_S16_BE, 6 } , { AFMT_S8, 0 } , { AFMT_U16_LE, 0 } , { AFMT_U16_BE, 0 } }; int i, n = sizeof (format2bits) / sizeof (struct format_tbl); /* return current format */ if (arg == 0) { return devc->audio_format; } devc->audio_format = arg; /* search matching format bits */ for (i = 0; i < n; i++) { if (format2bits[i].format == arg) { devc->format_bits = format2bits[i].bits; devc->audio_format = arg; return arg; } } /* Still hanging here. Something must be terribly wrong */ devc->format_bits = 0; return devc->audio_format = AFMT_U8; } static short ad1816_set_channels (int dev, short arg) { ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; if (arg != 1 && arg != 2) { return devc->channels; } devc->channels = arg; return arg; } /* open device */ static int ad1816_open (int dev, int mode) { ad1816_info *devc = NULL; unsigned long flags; /* is device number valid ? */ if (dev < 0 || dev >= num_audiodevs) { return -(ENXIO); } /* get device info of this dev */ devc = (ad1816_info *) audio_devs[dev]->devc; /* make check if device already open atomic */ save_flags (flags); cli (); if (devc->opened) { restore_flags (flags); return -(EBUSY); } /* mark device as open */ devc->opened = 1; devc->audio_mode = 0; devc->speed = 8000; devc->audio_format=AFMT_U8; devc->channels=1; ad1816_reset(devc->dev_no); /* halt all pending output */ restore_flags (flags); return 0; } static void ad1816_close (int dev) /* close device */ { unsigned long flags; ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; save_flags (flags); cli (); /* halt all pending output */ ad1816_reset(devc->dev_no); devc->opened = 0; devc->audio_mode = 0; devc->speed = 8000; devc->audio_format=AFMT_U8; devc->format_bits = 0; restore_flags (flags); } /* ------------------------------------------------------------------- */ /* Audio driver structure */ static struct audio_driver ad1816_audio_driver = { ad1816_open, ad1816_close, ad1816_output_block, ad1816_start_input, ad1816_ioctl, ad1816_prepare_for_input, ad1816_prepare_for_output, ad1816_halt, NULL, NULL, ad1816_halt_input, ad1816_halt_output, ad1816_trigger, ad1816_set_speed, ad1816_set_bits, ad1816_set_channels, NULL, NULL }; /* ------------------------------------------------------------------- */ /* Interrupt handler */ static void ad1816_interrupt (int irq, void *dev_id, struct pt_regs *dummy) { unsigned char status; ad1816_info *devc; int dev; unsigned long flags; if (irq < 0 || irq > 15) { printk ("ad1816: Got bogus interrupt %d\n", irq); return; } dev = irq2dev[irq]; if (dev < 0 || dev >= num_audiodevs) { printk ("ad1816: IRQ2AD1816-mapping failed for irq %d device %d\n", irq,dev); return; } devc = (ad1816_info *) audio_devs[dev]->devc; save_flags(flags); cli(); /* read interrupt register */ status = inb (devc->base+1); /* Clear all interrupt */ outb (~status, devc->base+1); DEBUGNOISE (printk("ad1816: Got interrupt subclass %d\n",status)); devc->irq_ok=1; if (status == 0) { DEBUGWARN(printk ("ad1816: interrupt: Got interrupt, but no reason?\n")); } if (devc->opened && (devc->audio_mode & PCM_ENABLE_INPUT) && (status&64)){ DMAbuf_inputintr (dev); } if (devc->opened && (devc->audio_mode & PCM_ENABLE_OUTPUT) && (status & 128)) { DMAbuf_outputintr (dev, 1); } restore_flags(flags); } /* ------------------------------------------------------------------- */ /* Mixer stuff */ struct mixer_def { unsigned int regno: 7; unsigned int polarity:1; /* 0=normal, 1=reversed */ unsigned int bitpos:4; unsigned int nbits:4; }; static char mix_cvt[101] = { 0, 0,3,7,10,13,16,19,21,23,26,28,30,32,34,35,37,39,40,42, 43,45,46,47,49,50,51,52,53,55,56,57,58,59,60,61,62,63,64,65, 65,66,67,68,69,70,70,71,72,73,73,74,75,75,76,77,77,78,79,79, 80,81,81,82,82,83,84,84,85,85,86,86,87,87,88,88,89,89,90,90, 91,91,92,92,93,93,94,94,95,95,96,96,96,97,97,98,98,98,99,99, 100 }; typedef struct mixer_def mixer_ent; /* * Most of the mixer entries work in backwards. Setting the polarity field * makes them to work correctly. * * The channel numbering used by individual soundcards is not fixed. Some * cards have assigned different meanings for the AUX1, AUX2 and LINE inputs. * The current version doesn't try to compensate this. */ #define MIX_ENT(name, reg_l, pola_l, pos_l, len_l, reg_r, pola_r, pos_r, len_r) \ {{reg_l, pola_l, pos_l, len_l}, {reg_r, pola_r, pos_r, len_r}} mixer_ent mix_devices[SOUND_MIXER_NRDEVICES][2] = { MIX_ENT(SOUND_MIXER_VOLUME, 14, 1, 8, 5, 14, 1, 0, 5), MIX_ENT(SOUND_MIXER_BASS, 0, 0, 0, 0, 0, 0, 0, 0), MIX_ENT(SOUND_MIXER_TREBLE, 0, 0, 0, 0, 0, 0, 0, 0), MIX_ENT(SOUND_MIXER_SYNTH, 5, 1, 8, 6, 5, 1, 0, 6), MIX_ENT(SOUND_MIXER_PCM, 4, 1, 8, 6, 4, 1, 0, 6), MIX_ENT(SOUND_MIXER_SPEAKER, 0, 0, 0, 0, 0, 0, 0, 0), MIX_ENT(SOUND_MIXER_LINE, 18, 1, 8, 5, 18, 1, 0, 5), MIX_ENT(SOUND_MIXER_MIC, 19, 1, 8, 5, 19, 1, 0, 5), MIX_ENT(SOUND_MIXER_CD, 15, 1, 8, 5, 15, 1, 0, 5), MIX_ENT(SOUND_MIXER_IMIX, 0, 0, 0, 0, 0, 0, 0, 0), MIX_ENT(SOUND_MIXER_ALTPCM, 0, 0, 0, 0, 0, 0, 0, 0), MIX_ENT(SOUND_MIXER_RECLEV, 20, 0, 8, 4, 20, 0, 0, 4), MIX_ENT(SOUND_MIXER_IGAIN, 0, 0, 0, 0, 0, 0, 0, 0), MIX_ENT(SOUND_MIXER_OGAIN, 0, 0, 0, 0, 0, 0, 0, 0), MIX_ENT(SOUND_MIXER_LINE1, 17, 1, 8, 5, 17, 1, 0, 5), MIX_ENT(SOUND_MIXER_LINE2, 16, 1, 8, 5, 16, 1, 0, 5), MIX_ENT(SOUND_MIXER_LINE3, 39, 0, 9, 4, 39, 1, 0, 5) }; static unsigned short default_mixer_levels[SOUND_MIXER_NRDEVICES] = { 0x4343, /* Master Volume */ 0x3232, /* Bass */ 0x3232, /* Treble */ 0x0000, /* FM */ 0x4343, /* PCM */ 0x0000, /* PC Speaker */ 0x0000, /* Ext Line */ 0x0000, /* Mic */ 0x0000, /* CD */ 0x0000, /* Recording monitor */ 0x0000, /* SB PCM */ 0x0000, /* Recording level */ 0x0000, /* Input gain */ 0x0000, /* Output gain */ 0x0000, /* Line1 */ 0x0000, /* Line2 */ 0x0000 /* Line3 (usually line in)*/ }; #define LEFT_CHN 0 #define RIGHT_CHN 1 static int ad1816_set_recmask (ad1816_info * devc, int mask) { unsigned char recdev; int i, n; mask &= devc->supported_rec_devices; n = 0; /* Count selected device bits */ for (i = 0; i < 32; i++) { if (mask & (1 << i)) { n++; } } if (n == 0) { mask = SOUND_MASK_MIC; } else if (n != 1) { /* Too many devices selected */ /* Filter out active settings */ mask &= ~devc->recmask; n = 0; /* Count selected device bits */ for (i = 0; i < 32; i++) { if (mask & (1 << i)) { n++; } } if (n != 1) { mask = SOUND_MASK_MIC; } } switch (mask) { case SOUND_MASK_MIC: recdev = 5; break; case SOUND_MASK_LINE: recdev = 0; break; case SOUND_MASK_CD: recdev = 2; break; case SOUND_MASK_LINE1: recdev = 4; break; case SOUND_MASK_LINE2: recdev = 3; break; case SOUND_MASK_VOLUME: recdev = 1; break; default: mask = SOUND_MASK_MIC; recdev = 5; } recdev <<= 4; ad_write (devc, 20, (ad_read (devc, 20) & 0x8f8f) | recdev | (recdev<<8)); devc->recmask = mask; return mask; } static void change_bits (int *regval, int dev, int chn, int newval) { unsigned char mask; int shift; /* Reverse polarity*/ if (mix_devices[dev][chn].polarity == 1) { newval = 100 - newval; } mask = (1 << mix_devices[dev][chn].nbits) - 1; shift = mix_devices[dev][chn].bitpos; /* Scale it */ newval = (int) ((newval * mask) + 50) / 100; /* Clear bits */ *regval &= ~(mask << shift); /* Set new value */ *regval |= (newval & mask) << shift; } static int ad1816_mixer_get (ad1816_info * devc, int dev) { DEBUGINFO(printk("ad1816: mixer_get called!\n")); /* range check + supported mixer check */ if (dev < 0 || dev >= SOUND_MIXER_NRDEVICES ) { return (-(EINVAL)); } if (!((1 << dev) & devc->supported_devices)) { return -(EINVAL); } return devc->levels[dev]; } static int ad1816_mixer_set (ad1816_info * devc, int dev, int value) { int left = value & 0x000000ff; int right = (value & 0x0000ff00) >> 8; int retvol; int regoffs; int val; int valmute; DEBUGINFO(printk("ad1816: mixer_set called!\n")); if (dev < 0 || dev >= SOUND_MIXER_NRDEVICES ) { return -(EINVAL); } if (left > 100) { left = 100; } if (left < 0) { left = 0; } if (right > 100) { right = 100; } if (right < 0) { right = 0; } /* Mono control */ if (mix_devices[dev][RIGHT_CHN].nbits == 0) { right = left; } retvol = left | (right << 8); /* Scale it */ left = mix_cvt[left]; right = mix_cvt[right]; /* reject all mixers that are not supported */ if (!(devc->supported_devices & (1 << dev))) { return -(EINVAL); } /* sanity check */ if (mix_devices[dev][LEFT_CHN].nbits == 0) { return -(EINVAL); } /* keep precise volume internal */ devc->levels[dev] = retvol; /* Set the left channel */ regoffs = mix_devices[dev][LEFT_CHN].regno; val = ad_read (devc, regoffs); change_bits (&val, dev, LEFT_CHN, left); valmute=val; /* Mute bit masking on some registers */ if ( regoffs==5 || regoffs==14 || regoffs==15 || regoffs==16 || regoffs==17 || regoffs==18 || regoffs==19 || regoffs==39) { if (left==0) { valmute |= 0x8000; } else { valmute &= ~0x8000; } } ad_write (devc, regoffs, valmute); /* mute */ /* * Set the right channel */ /* Was just a mono channel */ if (mix_devices[dev][RIGHT_CHN].nbits == 0) { return retvol; } regoffs = mix_devices[dev][RIGHT_CHN].regno; val = ad_read (devc, regoffs); change_bits (&val, dev, RIGHT_CHN, right); valmute=val; if ( regoffs==5 || regoffs==14 || regoffs==15 || regoffs==16 || regoffs==17 || regoffs==18 || regoffs==19 || regoffs==39) { if (right==0) { valmute |= 0x80; } else { valmute &= ~0x80; } } ad_write (devc, regoffs, valmute); /* mute */ return retvol; } #define MIXER_DEVICES ( SOUND_MASK_VOLUME | \ SOUND_MASK_SYNTH | \ SOUND_MASK_PCM | \ SOUND_MASK_LINE | \ SOUND_MASK_LINE1 | \ SOUND_MASK_LINE2 | \ SOUND_MASK_LINE3 | \ SOUND_MASK_MIC | \ SOUND_MASK_CD | \ SOUND_MASK_RECLEV \ ) #define REC_DEVICES ( SOUND_MASK_LINE2 |\ SOUND_MASK_LINE |\ SOUND_MASK_LINE1 |\ SOUND_MASK_MIC |\ SOUND_MASK_CD |\ SOUND_MASK_VOLUME \ ) static void ad1816_mixer_reset (ad1816_info * devc) { int i; devc->supported_devices = MIXER_DEVICES; devc->supported_rec_devices = REC_DEVICES; for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) { if (devc->supported_devices & (1 << i)) { ad1816_mixer_set (devc, i, default_mixer_levels[i]); } } ad1816_set_recmask (devc, SOUND_MASK_MIC); } static int ad1816_mixer_ioctl (int dev, unsigned int cmd, caddr_t arg) { ad1816_info *devc = mixer_devs[dev]->devc; int val; DEBUGINFO(printk("ad1816: mixer_ioctl called!\n")); /* Mixer ioctl */ if (((cmd >> 8) & 0xff) == 'M') { /* set ioctl */ if (_IOC_DIR (cmd) & _IOC_WRITE) { switch (cmd & 0xff){ case SOUND_MIXER_RECSRC: if (get_user(val, (int *)arg)) { return -EFAULT; } val=ad1816_set_recmask (devc, val); return put_user(val, (int *)arg); break; default: if (get_user(val, (int *)arg)){ return -EFAULT; } if ((val=ad1816_mixer_set (devc, cmd & 0xff, val))<0) { return val; } else { return put_user(val, (int *)arg); } } } else { /* read ioctl */ switch (cmd & 0xff) { case SOUND_MIXER_RECSRC: val=devc->recmask; return put_user(val, (int *)arg); break; case SOUND_MIXER_DEVMASK: val=devc->supported_devices; return put_user(val, (int *)arg); break; case SOUND_MIXER_STEREODEVS: val=devc->supported_devices & ~(SOUND_MASK_SPEAKER | SOUND_MASK_IMIX); return put_user(val, (int *)arg); break; case SOUND_MIXER_RECMASK: val=devc->supported_rec_devices; return put_user(val, (int *)arg); break; case SOUND_MIXER_CAPS: val=SOUND_CAP_EXCL_INPUT; return put_user(val, (int *)arg); break; default: if ((val=ad1816_mixer_get (devc, cmd & 0xff))<0) { return val; } else { return put_user(val, (int *)arg); } } } } else { /* not for mixer */ return -(EINVAL); } } /* ------------------------------------------------------------------- */ /* Mixer structure */ static struct mixer_operations ad1816_mixer_operations = { "AD1816", "AD1816 Mixer", ad1816_mixer_ioctl }; /* ------------------------------------------------------------------- */ /* stuff for card recognition, init and unloading */ /* replace with probe routine */ static int __init probe_ad1816 ( struct address_info *hw_config ) { ad1816_info *devc = &dev_info[nr_ad1816_devs]; int io_base=hw_config->io_base; int *osp=hw_config->osp; int tmp; printk("ad1816: AD1816 sounddriver Copyright (C) 1998 by Thorsten Knabe\n"); printk("ad1816: io=0x%x, irq=%d, dma=%d, dma2=%d, clockfreq=%d, options=%d isadmabug=%d\n", hw_config->io_base, hw_config->irq, hw_config->dma, hw_config->dma2, ad1816_clockfreq, options, isa_dma_bridge_buggy); if (check_region (io_base, 16)) { printk ("ad1816: I/O port 0x%03x not free\n", io_base); return 0; } DEBUGLOG(printk ("ad1816: detect(%x)\n", io_base)); if (nr_ad1816_devs >= MAX_AUDIO_DEV) { printk ("ad1816: detect error - step 0\n"); return 0; } devc->base = io_base; devc->irq_ok = 0; devc->irq = 0; devc->opened = 0; devc->osp = osp; /* base+0: bit 1 must be set but not 255 */ tmp=inb(devc->base); if ( (tmp&0x80)==0 || tmp==255 ) { DEBUGLOG (printk ("ad1816: Chip is not an AD1816 or chip is not active (Test 0)\n")); return(0); } /* writes to ireg 8 are copied to ireg 9 */ ad_write(devc,8,12345); if (ad_read(devc,9)!=12345) { DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 1)\n")); return(0); } /* writes to ireg 8 are copied to ireg 9 */ ad_write(devc,8,54321); if (ad_read(devc,9)!=54321) { DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 2)\n")); return(0); } /* writes to ireg 10 are copied to ireg 11 */ ad_write(devc,10,54321); if (ad_read(devc,11)!=54321) { DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 3)\n")); return(0); } /* writes to ireg 10 are copied to ireg 11 */ ad_write(devc,10,12345); if (ad_read(devc,11)!=12345) { DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 4)\n")); return(0); } /* bit in base +1 cannot be set to 1 */ tmp=inb(devc->base+1); outb(0xff,devc->base+1); if (inb(devc->base+1)!=tmp) { DEBUGLOG (printk ("ad1816: Chip is not an AD1816 (Test 5)\n")); return(0); } DEBUGLOG (printk ("ad1816: detect() - Detected OK\n")); DEBUGLOG (printk ("ad1816: AD1816 Version: %d\n",ad_read(devc,45))); /* detection was successful */ return 1; } /* allocate resources from the kernel. If any allocation fails, free all allocated resources and exit attach. */ static void __init attach_ad1816 (struct address_info *hw_config) { int my_dev; char dev_name[100]; ad1816_info *devc = &dev_info[nr_ad1816_devs]; /* allocate i/o ports */ request_region (hw_config->io_base, 16, "AD1816 Sound"); devc->base = hw_config->io_base; /* disable all interrupts */ ad_write(devc,1,0); /* Clear pending interrupts */ outb (0, devc->base+1); /* allocate irq */ if (hw_config->irq < 0 || hw_config->irq > 15) { release_region(hw_config->io_base, 16); return; } if (request_irq(hw_config->irq, ad1816_interrupt,0, "SoundPort", hw_config->osp) < 0) { printk ("ad1816: IRQ in use\n"); release_region(hw_config->io_base, 16); return; } devc->irq=hw_config->irq; /* DMA stuff */ if (sound_alloc_dma (hw_config->dma, "Sound System")) { printk ("ad1816: Can't allocate DMA%d\n", hw_config->dma); free_irq(hw_config->irq,hw_config->osp); release_region(hw_config->io_base, 16); return; } devc->dma_playback=hw_config->dma; if ( hw_config->dma2 != -1 && hw_config->dma2 != hw_config->dma) { if (sound_alloc_dma (hw_config->dma2, "Sound System (capture)")) { printk ("ad1816: Can't allocate DMA%d\n", hw_config->dma2); sound_free_dma(hw_config->dma); free_irq(hw_config->irq,hw_config->osp); release_region(hw_config->io_base, 16); return; } devc->dma_capture=hw_config->dma2; devc->audio_mode=DMA_AUTOMODE|DMA_DUPLEX; } else { devc->dma_capture=-1; devc->audio_mode=DMA_AUTOMODE; } sprintf (dev_name,"AD1816 audio driver"); conf_printf2 (dev_name, devc->base, devc->irq, hw_config->dma, hw_config->dma2); /* register device */ if ((my_dev = sound_install_audiodrv (AUDIO_DRIVER_VERSION, dev_name, &ad1816_audio_driver, sizeof (struct audio_driver), devc->audio_mode, ad_format_mask, devc, hw_config->dma, hw_config->dma2)) < 0) { printk ("ad1816: Can't install sound driver\n"); if (devc->dma_capture>=0) { sound_free_dma(hw_config->dma2); } sound_free_dma(hw_config->dma); free_irq(hw_config->irq,hw_config->osp); release_region(hw_config->io_base, 16); return; } /* fill rest of structure with reasonable default values */ irq2dev[hw_config->irq] = devc->dev_no = my_dev; devc->opened = 0; devc->irq_ok = 0; devc->osp = hw_config->osp; nr_ad1816_devs++; ad_write(devc,32,0x80f0); /* sound system mode */ if (options&1) { ad_write(devc,33,0); /* disable all audiosources for dsp */ } else { ad_write(devc,33,0x03f8); /* enable all audiosources for dsp */ } ad_write(devc,4,0x8080); /* default values for volumes (muted)*/ ad_write(devc,5,0x8080); ad_write(devc,6,0x8080); ad_write(devc,7,0x8080); ad_write(devc,15,0x8888); ad_write(devc,16,0x8888); ad_write(devc,17,0x8888); ad_write(devc,18,0x8888); ad_write(devc,19,0xc888); /* +20db mic active */ ad_write(devc,14,0x0000); /* Master volume unmuted */ ad_write(devc,39,0x009f); /* 3D effect on 0% phone out muted */ ad_write(devc,44,0x0080); /* everything on power, 3d enabled for d/a */ outb(0x10,devc->base+8); /* set dma mode */ outb(0x10,devc->base+9); /* enable capture + playback interrupt */ ad_write(devc,1,0xc000); /* set mixer defaults */ ad1816_mixer_reset (devc); /* register mixer */ if ((audio_devs[my_dev]->mixer_dev=sound_install_mixer( MIXER_DRIVER_VERSION, dev_name, &ad1816_mixer_operations, sizeof (struct mixer_operations), devc)) >= 0) { audio_devs[my_dev]->min_fragment = 0; } } static void __exit unload_card(ad1816_info *devc) { int mixer, dev = 0; if (devc != NULL) { DEBUGLOG (printk("ad1816: Unloading card at base=%x\n",devc->base)); dev = devc->dev_no; mixer = audio_devs[dev]->mixer_dev; /* unreg mixer*/ if(mixer>=0) { sound_unload_mixerdev(mixer); } sound_unload_audiodev(dev); /* free dma channels */ if (devc->dma_capture>=0) { sound_free_dma(devc->dma_capture); } /* card wont get added if resources could not be allocated thus we need not ckeck if allocation was successful */ sound_free_dma (devc->dma_playback); free_irq(devc->irq, devc->osp); release_region (devc->base, 16); DEBUGLOG (printk("ad1816: Unloading card at base=%x was successful\n",devc->base)); } else { printk ("ad1816: no device/card specified\n"); } } static struct address_info cfg; static int __initdata io = -1; static int __initdata irq = -1; static int __initdata dma = -1; static int __initdata dma2 = -1; MODULE_PARM(io,"i"); MODULE_PARM(irq,"i"); MODULE_PARM(dma,"i"); MODULE_PARM(dma2,"i"); MODULE_PARM(ad1816_clockfreq,"i"); MODULE_PARM(options,"i"); static int __init init_ad1816(void) { cfg.io_base = io; cfg.irq = irq; cfg.dma = dma; cfg.dma2 = dma2; if (cfg.io_base == -1 || cfg.irq == -1 || cfg.dma == -1 || cfg.dma2 == -1) { printk(KERN_INFO "ad1816: dma, dma2, irq and io must be set.\n"); return -EINVAL; } if (probe_ad1816(&cfg) == 0) { return -ENODEV; } attach_ad1816(&cfg); SOUND_LOCK; } static void __exit cleanup_ad1816 (void) { int i; ad1816_info *devc = NULL; /* remove any soundcard */ for (i = 0; i < nr_ad1816_devs; i++) { devc = &dev_info[i]; unload_card(devc); } nr_ad1816_devs=0; SOUND_LOCK_END; } module_init(init_ad1816); module_exit(cleanup_ad1816); #ifndef MODULE static int __init setup_ad1816(char *str) { /* io, irq, dma, dma2 */ int ints[5]; str = get_options(str, ARRAY_SIZE(ints), ints); io = ints[1]; irq = ints[2]; dma = ints[3]; dma16 = ints[4]; return 1; } __setup("ad1816=", setup_ad1816); #endif