diff options
Diffstat (limited to 'sound/oss/ad1816.c')
| -rw-r--r-- | sound/oss/ad1816.c | 1369 |
1 files changed, 1369 insertions, 0 deletions
diff --git a/sound/oss/ad1816.c b/sound/oss/ad1816.c new file mode 100644 index 0000000..22dae5d --- /dev/null +++ b/sound/oss/ad1816.c @@ -0,0 +1,1369 @@ +/* + * + * AD1816 lowlevel sound driver for Linux 2.6.0 and above + * + * Copyright (C) 1998-2003 by Thorsten Knabe <linux@thorsten-knabe.de> + * + * Based on the CS4232/AD1848 driver Copyright (C) by Hannu Savolainen 1993-1996 + * + * + * version: 1.5 + * status: beta + * date: 2003/07/15 + * + * 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 + * + * Christoph Hellwig: Added isapnp support 2000/03/15 + * + * Arnaldo Carvalho de Melo: get rid of check_region 2001/10/07 + * + * Thorsten Knabe: Compiling with CONFIG_PNP enabled + * works again. It is now possible to use more than one + * AD1816 sound card. Sample rate now may be changed during + * playback/capture. printk() uses log levels everywhere. + * SMP fixes. DMA handling fixes. + * Other minor code cleanup. 2003/07/15 + * + */ + + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/isapnp.h> +#include <linux/stddef.h> +#include <linux/spinlock.h> +#include "sound_config.h" + +#define DEBUGNOISE(x) + +#define CHECK_FOR_POWER { int timeout=100; \ + while (timeout > 0 && (inb(devc->base)&0x80)!= 0x80) {\ + timeout--; \ + } \ + if (timeout==0) {\ + printk(KERN_WARNING "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 opened; /* open */ + int speed; + int channels; + int audio_format; + int audio_mode; + + int recmask; /* setup */ + unsigned char format_bits; + int supported_devices; + int supported_rec_devices; + unsigned short levels[SOUND_MIXER_NRDEVICES]; + /* misc */ + struct pnp_dev *pnpdev; /* configured via pnp */ + int dev_no; /* this is the # in audio_devs and NOT + in ad1816_info */ + spinlock_t lock; +} ad1816_info; + +static int nr_ad1816_devs; +static int ad1816_clockfreq = 33000; +static int options; + +/* 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) +{ + int result; + + CHECK_FOR_POWER; + outb ((unsigned char) (reg & 0x3f), devc->base+0); + result = inb(devc->base+2); + result+= inb(devc->base+3)<<8; + return (result); +} + + +static void ad_write (ad1816_info * devc, int reg, int data) +{ + CHECK_FOR_POWER; + 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); +} + +/* ------------------------------------------------------------------- */ + +/* 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; + + DEBUGNOISE(printk(KERN_DEBUG "ad1816: halt_input called\n")); + + spin_lock_irqsave(&devc->lock,flags); + + 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; + spin_unlock_irqrestore(&devc->lock,flags); +} + +static void ad1816_halt_output (int dev) +{ + unsigned long flags; + ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; + + unsigned char buffer; + + DEBUGNOISE(printk(KERN_DEBUG "ad1816: halt_output called!\n")); + + spin_lock_irqsave(&devc->lock,flags); + /* 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; + spin_unlock_irqrestore(&devc->lock,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; + + DEBUGNOISE(printk(KERN_DEBUG "ad1816: output_block called buf=%ld count=%d flags=%d\n",buf,count,intrflag)); + + cnt = count/4 - 1; + + spin_lock_irqsave(&devc->lock,flags); + + /* set transfer count */ + ad_write (devc, 8, cnt & 0xffff); + + devc->audio_mode |= PCM_ENABLE_OUTPUT; + spin_unlock_irqrestore(&devc->lock,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; + + DEBUGNOISE(printk(KERN_DEBUG "ad1816: start_input called buf=%ld count=%d flags=%d\n",buf,count,intrflag)); + + cnt = count/4 - 1; + + spin_lock_irqsave(&devc->lock,flags); + + /* set transfer count */ + ad_write (devc, 10, cnt & 0xffff); + devc->audio_mode |= PCM_ENABLE_INPUT; + spin_unlock_irqrestore(&devc->lock,flags); +} + +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; + + DEBUGNOISE(printk(KERN_DEBUG "ad1816: prepare_for_input called: bsize=%d bcount=%d\n",bsize,bcount)); + + spin_lock_irqsave(&devc->lock,flags); + 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); + + freq=((unsigned int)devc->speed*33000)/ad1816_clockfreq; + + /* write playback/capture speeds */ + ad_write (devc, 2, freq & 0xffff); + ad_write (devc, 3, freq & 0xffff); + + spin_unlock_irqrestore(&devc->lock,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; + + DEBUGNOISE(printk(KERN_DEBUG "ad1816: prepare_for_output called: bsize=%d bcount=%d\n",bsize,bcount)); + + spin_lock_irqsave(&devc->lock,flags); + + 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); + + freq=((unsigned int)devc->speed*33000)/ad1816_clockfreq; + + /* write playback/capture speeds */ + ad_write (devc, 2, freq & 0xffff); + ad_write (devc, 3, freq & 0xffff); + + spin_unlock_irqrestore(&devc->lock,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; + + DEBUGNOISE(printk(KERN_DEBUG "ad1816: trigger called! (devc=%d,devc->base=%d\n", devc, devc->base)); + + /* mode may have changed */ + + spin_lock_irqsave(&devc->lock,flags); + + /* 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); + } + spin_unlock_irqrestore(&devc->lock,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) +{ + unsigned long flags; + unsigned int freq; + int ret; + + ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; + + spin_lock_irqsave(&devc->lock, flags); + if (arg == 0) { + ret = devc->speed; + spin_unlock_irqrestore(&devc->lock, flags); + return ret; + } + /* range checking */ + if (arg < 4000) { + arg = 4000; + } + if (arg > 55000) { + arg = 55000; + } + devc->speed = arg; + + /* change speed during playback */ + freq=((unsigned int)devc->speed*33000)/ad1816_clockfreq; + /* write playback/capture speeds */ + ad_write (devc, 2, freq & 0xffff); + ad_write (devc, 3, freq & 0xffff); + + ret = devc->speed; + spin_unlock_irqrestore(&devc->lock, flags); + return ret; + +} + +static unsigned int ad1816_set_bits (int dev, unsigned int arg) +{ + unsigned long flags; + 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); + + spin_lock_irqsave(&devc->lock, flags); + /* return current format */ + if (arg == 0) { + arg = devc->audio_format; + spin_unlock_irqrestore(&devc->lock, flags); + return arg; + } + 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; + spin_unlock_irqrestore(&devc->lock, flags); + return arg; + } + + /* Still hanging here. Something must be terribly wrong */ + devc->format_bits = 0; + devc->audio_format = AFMT_U8; + spin_unlock_irqrestore(&devc->lock, flags); + return(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 */ + spin_lock_irqsave(&devc->lock,flags); + + if (devc->opened) { + spin_unlock_irqrestore(&devc->lock,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; + spin_unlock_irqrestore(&devc->lock,flags); + ad1816_reset(devc->dev_no); /* halt all pending output */ + return 0; +} + +static void ad1816_close (int dev) /* close device */ +{ + unsigned long flags; + ad1816_info *devc = (ad1816_info *) audio_devs[dev]->devc; + + /* halt all pending output */ + ad1816_reset(devc->dev_no); + + spin_lock_irqsave(&devc->lock,flags); + devc->opened = 0; + devc->audio_mode = 0; + devc->speed = 8000; + devc->audio_format=AFMT_U8; + devc->format_bits = 0; + spin_unlock_irqrestore(&devc->lock,flags); +} + + +/* ------------------------------------------------------------------- */ + +/* Audio driver structure */ + +static struct audio_driver ad1816_audio_driver = +{ + .owner = THIS_MODULE, + .open = ad1816_open, + .close = ad1816_close, + .output_block = ad1816_output_block, + .start_input = ad1816_start_input, + .prepare_for_input = ad1816_prepare_for_input, + .prepare_for_output = ad1816_prepare_for_output, + .halt_io = ad1816_halt, + .halt_input = ad1816_halt_input, + .halt_output = ad1816_halt_output, + .trigger = ad1816_trigger, + .set_speed = ad1816_set_speed, + .set_bits = ad1816_set_bits, + .set_channels = ad1816_set_channels, +}; + + +/* ------------------------------------------------------------------- */ + +/* Interrupt handler */ + + +static irqreturn_t ad1816_interrupt (int irq, void *dev_id, struct pt_regs *dummy) +{ + unsigned char status; + ad1816_info *devc = (ad1816_info *)dev_id; + + if (irq < 0 || irq > 15) { + printk(KERN_WARNING "ad1816: Got bogus interrupt %d\n", irq); + return IRQ_NONE; + } + + spin_lock(&devc->lock); + + /* read interrupt register */ + status = inb (devc->base+1); + /* Clear all interrupt */ + outb (~status, devc->base+1); + + DEBUGNOISE(printk(KERN_DEBUG "ad1816: Got interrupt subclass %d\n",status)); + + if (status == 0) { + DEBUGNOISE(printk(KERN_DEBUG "ad1816: interrupt: Got interrupt, but no source.\n")); + spin_unlock(&devc->lock); + return IRQ_NONE; + } + + if (devc->opened && (devc->audio_mode & PCM_ENABLE_INPUT) && (status&64)) + DMAbuf_inputintr (devc->dev_no); + + if (devc->opened && (devc->audio_mode & PCM_ENABLE_OUTPUT) && (status & 128)) + DMAbuf_outputintr (devc->dev_no, 1); + + spin_unlock(&devc->lock); + return IRQ_HANDLED; +} + +/* ------------------------------------------------------------------- */ + +/* 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 long flags; + unsigned char recdev; + int i, n; + + spin_lock_irqsave(&devc->lock, flags); + 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; + spin_unlock_irqrestore(&devc->lock, flags); + 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) +{ + DEBUGNOISE(printk(KERN_DEBUG "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; + unsigned long flags; + + DEBUGNOISE(printk(KERN_DEBUG "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); + spin_lock_irqsave(&devc->lock, flags); + + /* 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) { + spin_unlock_irqrestore(&devc->lock, flags); + 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 */ + spin_unlock_irqrestore(&devc->lock, flags); + 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, void __user * arg) +{ + ad1816_info *devc = mixer_devs[dev]->devc; + int val; + int __user *p = arg; + + DEBUGNOISE(printk(KERN_DEBUG "ad1816: mixer_ioctl called!\n")); + + /* Mixer ioctl */ + if (((cmd >> 8) & 0xff) == 'M') { + + /* set ioctl */ + if (_SIOC_DIR (cmd) & _SIOC_WRITE) { + switch (cmd & 0xff){ + case SOUND_MIXER_RECSRC: + + if (get_user(val, p)) + return -EFAULT; + val=ad1816_set_recmask (devc, val); + return put_user(val, p); + break; + + default: + if (get_user(val, p)) + return -EFAULT; + if ((val=ad1816_mixer_set (devc, cmd & 0xff, val))<0) + return val; + else + return put_user(val, p); + } + } else { + /* read ioctl */ + switch (cmd & 0xff) { + + case SOUND_MIXER_RECSRC: + val=devc->recmask; + return put_user(val, p); + break; + + case SOUND_MIXER_DEVMASK: + val=devc->supported_devices; + return put_user(val, p); + break; + + case SOUND_MIXER_STEREODEVS: + val=devc->supported_devices & ~(SOUND_MASK_SPEAKER | SOUND_MASK_IMIX); + return put_user(val, p); + break; + + case SOUND_MIXER_RECMASK: + val=devc->supported_rec_devices; + return put_user(val, p); + break; + + case SOUND_MIXER_CAPS: + val=SOUND_CAP_EXCL_INPUT; + return put_user(val, p); + break; + + default: + if ((val=ad1816_mixer_get (devc, cmd & 0xff))<0) + return val; + else + return put_user(val, p); + } + } + } else + /* not for mixer */ + return -(EINVAL); +} + +/* ------------------------------------------------------------------- */ + +/* Mixer structure */ + +static struct mixer_operations ad1816_mixer_operations = { + .owner = THIS_MODULE, + .id = "AD1816", + .name = "AD1816 Mixer", + .ioctl = ad1816_mixer_ioctl +}; + + +/* ------------------------------------------------------------------- */ + +/* stuff for card recognition, init and unloading PNP ...*/ + + +/* check if AD1816 present at specified hw_config and register device with OS + * return 1 if initialization was successful, 0 otherwise + */ +static int __init ad1816_init_card (struct address_info *hw_config, + struct pnp_dev *pnp) +{ + ad1816_info *devc = NULL; + int tmp; + int oss_devno = -1; + + printk(KERN_INFO "ad1816: initializing card: io=0x%x, irq=%d, dma=%d, " + "dma2=%d, clockfreq=%d, options=%d isadmabug=%d " + "%s\n", + hw_config->io_base, + hw_config->irq, + hw_config->dma, + hw_config->dma2, + ad1816_clockfreq, + options, + isa_dma_bridge_buggy, + pnp?"(PNP)":""); + + /* ad1816_info structure remaining ? */ + if (nr_ad1816_devs >= MAX_AUDIO_DEV) { + printk(KERN_WARNING "ad1816: no more ad1816_info structures " + "left\n"); + goto out; + } + + devc = &dev_info[nr_ad1816_devs]; + devc->base = hw_config->io_base; + devc->irq = hw_config->irq; + devc->dma_playback=hw_config->dma; + devc->dma_capture=hw_config->dma2; + devc->opened = 0; + devc->pnpdev = pnp; + spin_lock_init(&devc->lock); + + if (!request_region(devc->base, 16, "AD1816 Sound")) { + printk(KERN_WARNING "ad1816: I/O port 0x%03x not free\n", + devc->base); + goto out; + } + + printk(KERN_INFO "ad1816: Examining AD1816 at address 0x%03x.\n", + devc->base); + + + /* tests for ad1816 */ + /* base+0: bit 1 must be set but not 255 */ + tmp=inb(devc->base); + if ( (tmp&0x80)==0 || tmp==255 ) { + printk (KERN_INFO "ad1816: Chip is not an AD1816 or chip " + "is not active (Test 0)\n"); + goto out_release_region; + } + + /* writes to ireg 8 are copied to ireg 9 */ + ad_write(devc,8,12345); + if (ad_read(devc,9)!=12345) { + printk(KERN_INFO "ad1816: Chip is not an AD1816 (Test 1)\n"); + goto out_release_region; + } + + /* writes to ireg 8 are copied to ireg 9 */ + ad_write(devc,8,54321); + if (ad_read(devc,9)!=54321) { + printk(KERN_INFO "ad1816: Chip is not an AD1816 (Test 2)\n"); + goto out_release_region; + } + + /* writes to ireg 10 are copied to ireg 11 */ + ad_write(devc,10,54321); + if (ad_read(devc,11)!=54321) { + printk (KERN_INFO "ad1816: Chip is not an AD1816 (Test 3)\n"); + goto out_release_region; + } + + /* writes to ireg 10 are copied to ireg 11 */ + ad_write(devc,10,12345); + if (ad_read(devc,11)!=12345) { + printk (KERN_INFO "ad1816: Chip is not an AD1816 (Test 4)\n"); + goto out_release_region; + } + + /* 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) { + printk(KERN_INFO "ad1816: Chip is not an AD1816 (Test 5)\n"); + goto out_release_region; + } + + printk(KERN_INFO "ad1816: AD1816 (version %d) successfully detected!\n", + ad_read(devc,45)); + + /* disable all interrupts */ + ad_write(devc,1,0); + + /* Clear pending interrupts */ + outb (0, devc->base+1); + + /* allocate irq */ + if (devc->irq < 0 || devc->irq > 15) + goto out_release_region; + if (request_irq(devc->irq, ad1816_interrupt,0, + "SoundPort", devc) < 0) { + printk(KERN_WARNING "ad1816: IRQ in use\n"); + goto out_release_region; + } + + /* DMA stuff */ + if (sound_alloc_dma (devc->dma_playback, "Sound System")) { + printk(KERN_WARNING "ad1816: Can't allocate DMA%d\n", + devc->dma_playback); + goto out_free_irq; + } + + if ( devc->dma_capture >= 0 && + devc->dma_capture != devc->dma_playback) { + if (sound_alloc_dma(devc->dma_capture, + "Sound System (capture)")) { + printk(KERN_WARNING "ad1816: Can't allocate DMA%d\n", + devc->dma_capture); + goto out_free_dma; + } + devc->audio_mode=DMA_AUTOMODE|DMA_DUPLEX; + } else { + printk(KERN_WARNING "ad1816: Only one DMA channel " + "available/configured. No duplex operation possible\n"); + devc->audio_mode=DMA_AUTOMODE; + } + + conf_printf2 ("AD1816 audio driver", + devc->base, devc->irq, devc->dma_playback, + devc->dma_capture); + + /* register device */ + if ((oss_devno = sound_install_audiodrv (AUDIO_DRIVER_VERSION, + "AD1816 audio driver", + &ad1816_audio_driver, + sizeof (struct audio_driver), + devc->audio_mode, + ad_format_mask, + devc, + devc->dma_playback, + devc->dma_capture)) < 0) { + printk(KERN_WARNING "ad1816: Can't install sound driver\n"); + goto out_free_dma_2; + } + + + 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[oss_devno]->mixer_dev=sound_install_mixer( + MIXER_DRIVER_VERSION, + "AD1816 audio driver", + &ad1816_mixer_operations, + sizeof (struct mixer_operations), + devc)) < 0) { + printk(KERN_WARNING "Can't install mixer\n"); + } + /* make ad1816_info active */ + nr_ad1816_devs++; + printk(KERN_INFO "ad1816: card successfully installed!\n"); + return 1; + /* error handling */ +out_free_dma_2: + if (devc->dma_capture >= 0 && devc->dma_capture != devc->dma_playback) + sound_free_dma(devc->dma_capture); +out_free_dma: + sound_free_dma(devc->dma_playback); +out_free_irq: + free_irq(devc->irq, devc); +out_release_region: + release_region(devc->base, 16); +out: + return 0; +} + +static void __exit unload_card(ad1816_info *devc) +{ + int mixer, dev = 0; + + if (devc != NULL) { + printk("ad1816: Unloading card at address 0x%03x\n",devc->base); + + dev = devc->dev_no; + mixer = audio_devs[dev]->mixer_dev; + + /* unreg mixer*/ + if(mixer>=0) { + sound_unload_mixerdev(mixer); + } + /* unreg audiodev */ + sound_unload_audiodev(dev); + + /* free dma channels */ + if (devc->dma_capture>=0 && + devc->dma_capture != devc->dma_playback) { + sound_free_dma(devc->dma_capture); + } + sound_free_dma (devc->dma_playback); + /* free irq */ + free_irq(devc->irq, devc); + /* free io */ + release_region (devc->base, 16); +#ifdef __ISAPNP__ + if (devc->pnpdev) { + pnp_disable_dev(devc->pnpdev); + pnp_device_detach(devc->pnpdev); + } +#endif + + } else + printk(KERN_WARNING "ad1816: no device/card specified\n"); +} + +static int __initdata io = -1; +static int __initdata irq = -1; +static int __initdata dma = -1; +static int __initdata dma2 = -1; + +#ifdef __ISAPNP__ +/* use isapnp for configuration */ +static int isapnp = 1; +static int isapnpjump; +module_param(isapnp, bool, 0); +module_param(isapnpjump, int, 0); +#endif + +module_param(io, int, 0); +module_param(irq, int, 0); +module_param(dma, int, 0); +module_param(dma2, int, 0); +module_param(ad1816_clockfreq, int, 0); +module_param(options, int, 0); + +#ifdef __ISAPNP__ +static struct { + unsigned short card_vendor, card_device; + unsigned short vendor; + unsigned short function; + struct ad1816_data *data; +} isapnp_ad1816_list[] __initdata = { + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, + ISAPNP_VENDOR('A','D','S'), ISAPNP_FUNCTION(0x7150), + NULL }, + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, + ISAPNP_VENDOR('A','D','S'), ISAPNP_FUNCTION(0x7180), + NULL }, + {0} +}; + +MODULE_DEVICE_TABLE(isapnp, isapnp_ad1816_list); + + +static void __init ad1816_config_pnp_card(struct pnp_card *card, + unsigned short vendor, + unsigned short function) +{ + struct address_info cfg; + struct pnp_dev *card_dev = pnp_find_dev(card, vendor, function, NULL); + if (!card_dev) return; + if (pnp_device_attach(card_dev) < 0) { + printk(KERN_WARNING "ad1816: Failed to attach PnP device\n"); + return; + } + if (pnp_activate_dev(card_dev) < 0) { + printk(KERN_WARNING "ad1816: Failed to activate PnP device\n"); + pnp_device_detach(card_dev); + return; + } + cfg.io_base = pnp_port_start(card_dev, 2); + cfg.irq = pnp_irq(card_dev, 0); + cfg.dma = pnp_irq(card_dev, 0); + cfg.dma2 = pnp_irq(card_dev, 1); + if (!ad1816_init_card(&cfg, card_dev)) { + pnp_disable_dev(card_dev); + pnp_device_detach(card_dev); + } +} + +static void __init ad1816_config_pnp_cards(void) +{ + int nr_pnp_cfg; + int i; + + /* Count entries in isapnp_ad1816_list */ + for (nr_pnp_cfg = 0; isapnp_ad1816_list[nr_pnp_cfg].card_vendor != 0; + nr_pnp_cfg++); + /* Check and adjust isapnpjump */ + if( isapnpjump < 0 || isapnpjump >= nr_pnp_cfg) { + printk(KERN_WARNING + "ad1816: Valid range for isapnpjump is 0-%d. " + "Adjusted to 0.\n", nr_pnp_cfg-1); + isapnpjump = 0; + } + for (i = isapnpjump; isapnp_ad1816_list[i].card_vendor != 0; i++) { + struct pnp_card *card = NULL; + /* iterate over all pnp cards */ + while ((card = pnp_find_card(isapnp_ad1816_list[i].card_vendor, + isapnp_ad1816_list[i].card_device, card))) + ad1816_config_pnp_card(card, + isapnp_ad1816_list[i].vendor, + isapnp_ad1816_list[i].function); + } +} +#endif + +/* module initialization */ +static int __init init_ad1816(void) +{ + printk(KERN_INFO "ad1816: AD1816 sounddriver " + "Copyright (C) 1998-2003 by Thorsten Knabe and " + "others\n"); +#ifdef AD1816_CLOCK + /* set ad1816_clockfreq if set during compilation */ + ad1816_clockfreq=AD1816_CLOCK; +#endif + if (ad1816_clockfreq<5000 || ad1816_clockfreq>100000) { + ad1816_clockfreq=33000; + } + +#ifdef __ISAPNP__ + /* configure PnP cards */ + if(isapnp) ad1816_config_pnp_cards(); +#endif + /* configure card by module params */ + if (io != -1 && irq != -1 && dma != -1) { + struct address_info cfg; + cfg.io_base = io; + cfg.irq = irq; + cfg.dma = dma; + cfg.dma2 = dma2; + ad1816_init_card(&cfg, NULL); + } + if (nr_ad1816_devs <= 0) + return -ENODEV; + return 0; +} + +/* module cleanup */ +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; + printk(KERN_INFO "ad1816: driver unloaded!\n"); +} + +module_init(init_ad1816); +module_exit(cleanup_ad1816); + +#ifndef MODULE +/* kernel command line parameter evaluation */ +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]; + dma2 = ints[4]; + return 1; +} + +__setup("ad1816=", setup_ad1816); +#endif +MODULE_LICENSE("GPL"); |
