sys/src/9/pc/audioac97mix.c

   1 #include "u.h"
   2 #include "../port/lib.h"
   3 #include "mem.h"
   4 #include "dat.h"
   5 #include "fns.h"
   6 #include "io.h"
   7 #include "../port/error.h"
   8 #include "../port/audioif.h"
   9
  10 enum {
  11         Reset = 0x0,
  12                 Capmic = 0x1,
  13                 Captonectl = 0x4,
  14                 Capsimstereo = 0x8,
  15                 Capheadphones = 0x10,
  16                 Caploudness = 0x20,
  17                 Capdac18 = 0x40,
  18                 Capdac20 = 0x80,
  19                 Capadc18 = 0x100,
  20                 Capadc20 = 0x200,
  21                 Capenh = 0xfc00,
  22
  23         Recsel = 0x1A,
  24         General = 0x20,
  25         ThreeDctl = 0x22,
  26         Ac97RESER = 0x24,
  27         Powerdowncsr = 0x26,
  28                 Adcpower = 0x1,
  29                 Dacpower = 0x2,
  30                 Anlpower = 0x4,
  31                 Refpower = 0x8,
  32                 Inpower = 0x100,
  33                 Outpower = 0x200,
  34                 Mixpower = 0x400,
  35                 Mixvrefpower = 0x800,
  36                 Aclinkpower = 0x1000,
  37                 Clkpower = 0x2000,
  38                 Auxpower = 0x4000,
  39                 Eamppower = 0x8000,
  40         Extid = 0x28,
  41         Extcsr = 0x2A,
  42                 Extvra = 1<<0,
  43                 Extdra = 1<<1,
  44                 Extspdif = 1<<2,
  45                 Extvrm = 1<<3,
  46                 Extiddsa0 = 0<<4,       /* extid only */
  47                 Extiddsa1 = 1<<4,       /* extid only */
  48                 Extiddsa2 = 2<<4,       /* extid only */
  49                 Extiddsa3 = 3<<4,       /* extid only */
  50                 Extcsrspsa34 = 0<<4,    /* extcsr only */
  51                 Extcsrspsa78 = 1<<4,    /* extcsr only */
  52                 Extcsrspsa69 = 2<<4,    /* extcsr only */
  53                 ExtcsrspsaAB = 3<<4,    /* extcsr only */
  54                 Extcdac = 1<<6,
  55                 Extsdac = 1<<7,
  56                 Extldac = 1<<8,
  57                 Extidamap = 1<<9,       /* extid only */
  58                 Extidrev11 = 0<<10,     /* extid only */
  59                 Extidrev22 = 1<<10,     /* extid only */
  60                 Extidrev23 = 2<<10,     /* extid only */
  61                 Extidprim = 0<<14,      /* extid only */
  62                 Extidsec0 = 1<<14,      /* extid only */
  63                 Extidsec1 = 2<<14,      /* extid only */
  64                 Extidsec2 = 3<<14,      /* extid only */
  65                 Extcsrmadc = 1<<9,      /* extcsr only */
  66                 Extcsrspcv = 1<<10,     /* extcsr only */
  67                 Extcsrpri = 1<<11,      /* extcsr only */
  68                 Extcsrprj = 1<<12,      /* extcsr only */
  69                 Extcsrprk = 1<<13,      /* extcsr only */
  70                 Extcsrprl = 1<<14,      /* extcsr only */
  71                 Extcsrvcfg = 1<<15,     /* extcsr only */
  72         Pcmfrontdacrate = 0x2C,
  73         Pcmsurrounddacrate = 0x2E,
  74         Pcmlfedacrate = 0x30,
  75         Pcmadcrate = 0x32,
  76         Pcmmicadcrate = 0x34,
  77         CenterLfe = 0x36,
  78         LrSurround = 0x38,
  79         Spdifcsr = 0x3a,
  80                 Spdifpro = 1<<0,
  81                 Spdifnonaudio = 1<<1,
  82                 Spdifcopy = 1<<2,
  83                 Spdifpre = 1<<3,
  84                 SpdifCC = 0x7f<<4,
  85                 Spdifl = 1<<11,
  86                 Spdif44k1 = 0<<12,
  87                 Spdif32k = 1<<12,
  88                 Spdif48k = 2<<12,
  89                 Spdifdsr = 1<<14,
  90                 Spdifv = 1<<15,
  91         VID1 = 0x7c,
  92         VID2 = 0x7e,
  93 };
  94
  95 enum {
  96         Vmaster,
  97         Vhead,
  98         Vaudio,
  99         Vcd,
 100         Vbass,
 101         Vtreb,
 102         Vbeep,
 103         Vphone,
 104         Vmic,
 105         Vline,
 106         Vvideo,
 107         Vaux,
 108         Vrecgain,
 109         Vmicgain,
 110         Vspeed,
 111         Vdelay,
 112 };
 113
 114 static Volume voltab[] = {
 115         [Vmaster] "master", 0x02, -63, Stereo, 0,
 116         [Vaudio] "audio", 0x18, -31, Stereo, 0,
 117         [Vhead] "head", 0x04, -31, Stereo, Capheadphones,
 118         [Vbass] "bass", 0x08, 15, Left, Captonectl,
 119         [Vtreb] "treb", 0x08, 15, Right, Captonectl,
 120         [Vbeep] "beep", 0x0a, -31, Right, 0,
 121         [Vphone] "phone", 0x0c, -31, Right, 0,
 122         [Vmic] "mic", 0x0e, -31, Right, Capmic,
 123         [Vline] "line", 0x10, -31, Stereo, 0,
 124         [Vcd] "cd", 0x12, -31, Stereo,  0,
 125         [Vvideo] "video", 0x14, -31, Stereo, 0,
 126         [Vaux] "aux", 0x16, -63, Stereo, 0,
 127         [Vrecgain] "recgain", 0x1c, 15, Stereo, 0,
 128         [Vmicgain] "micgain", 0x1e, 15, Right, Capmic,
 129         [Vspeed] "speed", 0x2c, 0, Absolute, 0,
 130         [Vdelay] "delay", 0, 0, Absolute, 0,
 131         0
 132 };
 133
 134 typedef struct Mixer Mixer;
 135 struct Mixer
 136 {
 137         ushort (*rr)(Audio *, int);
 138         void (*wr)(Audio *, int, ushort);
 139         int vra;
 140 };
 141
 142 static int
 143 ac97volget(Audio *adev, int x, int a[2])
 144 {
 145         Mixer *m = adev->mixer;
 146         Volume *vol;
 147         ushort v;
 148
 149         vol = voltab+x;
 150         switch(vol->type){
 151         case Absolute:
 152                 if(x == Vdelay){
 153                         a[0] = adev->delay;
 154                         break;
 155                 }
 156                 a[0] = m->rr(adev, vol->reg);
 157                 break;
 158         default:
 159                 v = m->rr(adev, vol->reg);
 160                 if(v & 0x8000){
 161                         a[0] = a[1] = vol->range < 0 ? 0x7f : 0;
 162                 } else {
 163                         a[0] = ((v>>8) & 0x7f);
 164                         a[1] = (v & 0x7f);
 165                 }
 166         }
 167         return 0;
 168 }
 169
 170 static int
 171 ac97volset(Audio *adev, int x, int a[2])
 172 {
 173         Mixer *m = adev->mixer;
 174         Volume *vol;
 175         ushort v, w;
 176
 177         vol = voltab+x;
 178         switch(vol->type){
 179         case Absolute:
 180                 if(x == Vdelay){
 181                         adev->delay = a[0];
 182                         return 0;
 183                 }
 184                 m->wr(adev, vol->reg, a[0]);
 185                 if(x == Vspeed){
 186                         m->wr(adev, 0x32, a[0]);        /* adc rate */
 187                         adev->speed = m->rr(adev, vol->reg);
 188                 }
 189                 break;
 190         case Left:
 191                 v = a[0] & 0x7f;
 192                 w = m->rr(adev, vol->reg) & 0x7f;
 193                 m->wr(adev, vol->reg, (v<<8)|w);
 194                 break;
 195         case Right:
 196                 v = m->rr(adev, vol->reg) & 0x7f00;
 197                 w = a[1] & 0x7f;
 198                 m->wr(adev, vol->reg, v|w);
 199                 break;
 200         case Stereo:
 201                 v = a[0] & 0x7f;
 202                 w = a[1] & 0x7f;
 203                 m->wr(adev, vol->reg, (v<<8)|w);
 204                 break;
 205         }
 206         return 0;
 207 }
 208
 209
 210 static long
 211 ac97mixread(Audio *adev, void *a, long n, vlong)
 212 {
 213         Mixer *m = adev->mixer;
 214         ulong caps;
 215
 216         caps = m->rr(adev, Reset);
 217         caps |= m->rr(adev, Extid) << 16;
 218         return genaudiovolread(adev, a, n, 0, voltab, ac97volget, caps);
 219 }
 220
 221 static long
 222 ac97mixwrite(Audio *adev, void *a, long n, vlong)
 223 {
 224         Mixer *m = adev->mixer;
 225         ulong caps;
 226
 227         caps = m->rr(adev, Reset);
 228         caps |= m->rr(adev, Extid) << 16;
 229         return genaudiovolwrite(adev, a, n, 0, voltab, ac97volset, caps);
 230 }
 231
 232 void
 233 ac97mixreset(Audio *adev, void (*wr)(Audio*,int,ushort), ushort (*rr)(Audio*,int))
 234 {
 235         Mixer *m;
 236         ushort t;
 237
 238         m = malloc(sizeof(Mixer));
 239         if(m == nil){
 240                 print("ac97mix: no memory for Mixer\n");
 241                 return;
 242         }
 243         m->wr = wr;
 244         m->rr = rr;
 245         m->wr(adev, Reset, 0);
 246         m->wr(adev, Powerdowncsr, 0);
 247         delay(1000);
 248         t = (Adcpower | Dacpower | Anlpower | Refpower);
 249         if((m->rr(adev, Powerdowncsr) & t) != t)
 250                 print("#A%d: ac97 exhausted waiting powerup\n", adev->ctlrno);
 251
 252         t = m->rr(adev, Extid);
 253         print("#A%d: ac97 codec ext:%s%s%s%s%s%s%s\n", adev->ctlrno,
 254                 (t & Extvra) ? " vra" : "",
 255                 (t & Extdra) ? " dra" : "",
 256                 (t & Extspdif) ? " spdif" : "",
 257                 (t & Extvrm) ? " vrm" : "",
 258                 (t & Extcdac) ? " cdac" : "",
 259                 (t & Extsdac) ? " sdac" : "",
 260                 (t & Extldac) ? " ldac" : "");
 261
 262         if(t & Extvra){
 263                 m->wr(adev, Extcsr, Extvra);
 264                 m->vra = 1;
 265         } else {
 266                 print("#A%d: ac97 vra extension not supported\n", adev->ctlrno);
 267                 m->vra = 0;
 268         }
 269
 270         adev->mixer = m;
 271         adev->volread = ac97mixread;
 272         adev->volwrite = ac97mixwrite;
 273 }