[PATCH 2.4.20-pre4-ac2] i810_audio, i845 updates

Juergen Sawinski (juergen.sawinski@mpimf-heidelberg.mpg.de)
28 Aug 2002 02:22:03 +0200


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-implement a codec ID <-> IO register offset mapping
-in i810_ioctl, case SNDCTL_DSP_CHANNELS: only touch bits 20:21
off GLOB_CNT (multichannel capabilities)
-AMD 8111 has 6 hw channels so I must have mmio (but I don't have
any docs to verify this)
-minor fixes

-- 
Juergen "George" Sawinski
Max-Planck Institute for Medical Research
Dept. of Biomedical Optics
Jahnstr. 29
D-69120 Heidelberg
Germany

Phone: +49-6221-486-308 Fax: +49-6221-486-325

priv. Phone: +49-6221-418 858 Mobile: +49-171-532 5302

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--- linux-2.4.20-pre4-ac2/drivers/sound/i810_audio.c Tue Aug 27 21:44:25 20= 02 +++ jsaw/drivers/sound/i810_audio.c Wed Aug 28 01:26:28 2002 @@ -69,12 +69,12 @@ * * ICH 4 caveats * - * The ICH4 has the feature, that the codec ID may not be congruent=20 - * with the AC-link channel. + * The ICH4 has the feature, that the codec ID doesn't have to be=20 + * congruent with the IO connection. *=20 - * Right now, the codec ID is not the real codec ID but the AC-link - * channel. A ID <-> AC-link mapping has still to be implemented. - * =20 + * Therefore, from driver version 0.23 on, there is a "codec ID" <-> + * "IO register base offset" mapping (card->ac97_id_map) field. + * =20 * Juergen "George" Sawinski (jsaw)=20 */ =20 @@ -207,7 +207,7 @@ CAS =3D 0x34 /* Codec Write Semaphore Register */ }; =20 -ENUM_ENGINE(MC2,4); /* Mic. 2 */ +ENUM_ENGINE(MC2,4); /* Mic In 2 */ ENUM_ENGINE(PI2,5); /* PCM In 2 */ ENUM_ENGINE(SP,6); /* S/PDIF */ =20 @@ -234,8 +234,7 @@ #define INT_GPI (1<<0) #define INT_MASK (INT_SEC|INT_PRI|INT_MC|INT_PO|INT_PI|INT_MO|INT_NI|INT_G= PI) =20 - -#define DRIVER_VERSION "0.22" +#define DRIVER_VERSION "0.23" =20 /* magic numbers to protect our data structures */ #define I810_CARD_MAGIC 0x5072696E /* "Prin" */ @@ -295,7 +294,7 @@ /*@FIXME to be verified*/ { 2, 0x0000 }, /* SI7012 */ /*@FIXME to be verified*/ { 2, 0x0000 }, /* NVIDIA_NFORCE */ /*@FIXME to be verified*/ { 2, 0x0000 }, /* AMD768 */ - /*@FIXME to be verified*/ { 2, 0x0000 }, /* AMD8111 */ + /*@FIXME to be verified*/ { 3, 0x0001 }, /* AMD8111 */ }; =20 static struct pci_device_id i810_pci_tbl [] __initdata =3D { @@ -417,6 +416,7 @@ int dev_audio; =20 /* structures for abstraction of hardware facilities, codecs, banks and c= hannels*/ + u16 ac97_id_map[NR_AC97]; struct ac97_codec *ac97_codec[NR_AC97]; struct i810_state *states[NR_HW_CH]; struct i810_channel *channel; /* 1:1 to states[] but diff. lifetime */ @@ -449,6 +449,9 @@ int initializing; }; =20 +/* extract register offset from codec struct */ +#define IO_REG_OFF(codec) (((struct i810_card *) codec->private_data)->ac9= 7_id_map[codec->id]) + static struct i810_card *devs =3D NULL; =20 static int i810_open_mixdev(struct inode *inode, struct file *file); @@ -1948,13 +1955,13 @@ =20 switch ( val ) { case 2: /* 2 channels is always supported */ - outl(i_glob_cnt & 0xcfffff, + outl(i_glob_cnt & 0xffcfffff, state->card->iobase + GLOB_CNT); /* Do we need to change mixer settings???? */ break; case 4: /* Supported on some chipsets, better check first */ if ( state->card->channels >=3D 4 ) { - outl((i_glob_cnt & 0xcfffff) | 0x100000, + outl((i_glob_cnt & 0xffcfffff) | 0x100000, state->card->iobase + GLOB_CNT); /* Do we need to change mixer settings??? */ } else { @@ -1963,7 +1970,7 @@ break; case 6: /* Supported on some chipsets, better check first */ if ( state->card->channels >=3D 6 ) { - outl((i_glob_cnt & 0xcfffff) | 0x200000, + outl((i_glob_cnt & 0xffcfffff) | 0x200000, state->card->iobase + GLOB_CNT); /* Do we need to change mixer settings??? */ } else { @@ -2553,8 +2560,7 @@ { struct i810_card *card =3D dev->private_data; int count =3D 100; - u16 reg_set =3D ((u16) reg) & 0x7f; - reg_set |=3D ((u16) dev->id) << 7; + u16 reg_set =3D IO_REG_OFF(dev) | (reg&0x7f); =09 while(count-- && (readb(card->iobase_mmio + CAS) & 1))=20 udelay(1); @@ -2574,7 +2580,7 @@ { struct i810_card *card =3D dev->private_data; int count =3D 100; - u8 reg_set =3D ((dev->id)?((reg&0x7f)|0x80):(reg&0x7f)); + u16 reg_set =3D IO_REG_OFF(dev) | (reg&0x7f); =09 while(count-- && (inb(card->iobase + CAS) & 1))=20 udelay(1); @@ -2586,8 +2592,7 @@ { struct i810_card *card =3D dev->private_data; int count =3D 100; - u16 reg_set =3D ((u16) reg) & 0x7f; - reg_set |=3D ((u16) dev->id) << 7; + u16 reg_set =3D IO_REG_OFF(dev) | (reg&0x7f); =09 while(count-- && (readb(card->iobase_mmio + CAS) & 1))=20 udelay(1); @@ -2603,7 +2608,7 @@ { struct i810_card *card =3D dev->private_data; int count =3D 100; - u8 reg_set =3D ((dev->id)?((reg&0x7f)|0x80):(reg&0x7f)); + u16 reg_set =3D IO_REG_OFF(dev) | (reg&0x7f); =09 while(count-- && (inb(card->iobase + CAS) & 1))=20 udelay(1); @@ -2779,7 +2784,7 @@ if ((card->pci_id =3D=3D PCI_DEVICE_ID_INTEL_ICH4) && (card->use_mmio)) { primary_codec_id =3D (int) readl(card->iobase_mmio + SDM) & 0x3; - printk(KERN_INFO "i810_audio: primary codec id %d\n", + printk(KERN_INFO "i810_audio: Primary codec has ID %d\n", primary_codec_id); } =20 @@ -2803,6 +2808,7 @@ int num_ac97 =3D 0; int ac97_id; int total_channels =3D 0; + int nr_ac97_max =3D card_cap[card->pci_id_internal].nr_ac97; struct ac97_codec *codec; u16 eid; u32 reg; @@ -2828,13 +2834,15 @@ reg =3D inl(card->iobase + GLOB_CNT); outl(reg & 0xffcfffff, card->iobase + GLOB_CNT); =09 - for (num_ac97 =3D 0; num_ac97 < card_cap[card->pci_id_internal].nr_ac97; = num_ac97++) { + for (num_ac97 =3D 0; num_ac97 < NR_AC97; num_ac97++)=20 card->ac97_codec[num_ac97] =3D NULL; - } =20 - for (num_ac97 =3D 0; num_ac97 < card_cap[card->pci_id_internal].nr_ac97; = num_ac97++) { + /*@FIXME I don't know, if I'm playing to safe here... (jsaw) */ + if ((nr_ac97_max > 2) && !card->use_mmio) nr_ac97_max =3D 2; + + for (num_ac97 =3D 0; num_ac97 < nr_ac97_max; num_ac97++) { /* codec reset */ - printk(KERN_INFO "i810_audio: resetting hw channel %d\n", num_ac97); + printk(KERN_INFO "i810_audio: Resetting connection %d\n", num_ac97); if (card->use_mmio) readw(card->ac97base_mmio + 0x80*num_ac97); else inw(card->ac97base + 0x80*num_ac97); =20 @@ -2846,7 +2854,7 @@ if ((card->pci_id =3D=3D PCI_DEVICE_ID_INTEL_ICH4) && (card->use_mmio)) { ac97_id =3D (int) readl(card->iobase_mmio + SDM) & 0x3; - printk(KERN_INFO "i810_audio: hw channel %d, codec id %d\n", + printk(KERN_INFO "i810_audio: Connection %d with codec id %d\n", num_ac97, ac97_id); } else { @@ -2869,9 +2877,8 @@ /* initialize some basic codec information, other fields will be filled in ac97_probe_codec */ codec->private_data =3D card; - - /*@FIXME this will lead to problems!!! id=3D2 <-> io offset=3D0*/ - codec->id =3D num_ac97; + codec->id =3D ac97_id; + card->ac97_id_map[ac97_id] =3D num_ac97 * 0x80; =20 if (card->use_mmio) {=09 codec->codec_read =3D i810_ac97_get_mmio; @@ -2883,7 +2890,7 @@ } =09 if(!i810_ac97_probe_and_powerup(card,codec)) { - printk(KERN_ERR "i810_audio: timed out waiting for codec %d analog read= y.\n", num_ac97); + printk(KERN_ERR "i810_audio: timed out waiting for codec %d analog read= y.\n", ac97_id); kfree(codec); break; /* it didn't work */ } @@ -2903,7 +2910,7 @@ codec->codec_write(codec, AC97_EXTENDED_MODEM_ID, 0L); if(codec->codec_read(codec, AC97_EXTENDED_MODEM_ID)) { - printk(KERN_WARNING "i810_audio: codec %d is a softmodem - skipping.\n"= , num_ac97); + printk(KERN_WARNING "i810_audio: codec %d is a softmodem - skipping.\n"= , ac97_id); kfree(codec); continue; }

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