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 { Maxbusywait = 500000 };
  11
  12 enum {
  13         Reset = 0x0,
  14                 Capmic = 0x1,
  15                 Captonectl = 0x4,
  16                 Capsimstereo = 0x8,
  17                 Capheadphones = 0x10,
  18                 Caploudness = 0x20,
  19                 Capdac18 = 0x40,
  20                 Capdac20 = 0x80,
  21                 Capadc18 = 0x100,
  22                 Capadc20 = 0x200,
  23                 Capenh = 0xfc00,
  24
  25         Recsel = 0x1A,
  26         General = 0x20,
  27         ThreeDctl = 0x22,
  28         Ac97RESER = 0x24,
  29         Powerdowncsr = 0x26,
  30                 Adcpower = 0x1,
  31                 Dacpower = 0x2,
  32                 Anlpower = 0x4,
  33                 Refpower = 0x8,
  34                 Inpower = 0x100,
  35                 Outpower = 0x200,
  36                 Mixpower = 0x400,
  37                 Mixvrefpower = 0x800,
  38                 Aclinkpower = 0x1000,
  39                 Clkpower = 0x2000,
  40                 Auxpower = 0x4000,
  41                 Eamppower = 0x8000,
  42         Extid = 0x28,
  43         Extcsr = 0x2A,
  44                 Extvra = 1<<0,
  45                 Extdra = 1<<1,
  46                 Extspdif = 1<<2,
  47                 Extvrm = 1<<3,
  48                 Extiddsa0 = 0<<4,       /* extid only */
  49                 Extiddsa1 = 1<<4,       /* extid only */
  50                 Extiddsa2 = 2<<4,       /* extid only */
  51                 Extiddsa3 = 3<<4,       /* extid only */
  52                 Extcsrspsa34 = 0<<4,    /* extcsr only */
  53                 Extcsrspsa78 = 1<<4,    /* extcsr only */
  54                 Extcsrspsa69 = 2<<4,    /* extcsr only */
  55                 ExtcsrspsaAB = 3<<4,    /* extcsr only */
  56                 Extcdac = 1<<6,
  57                 Extsdac = 1<<7,
  58                 Extldac = 1<<8,
  59                 Extidamap = 1<<9,       /* extid only */
  60                 Extidrev11 = 0<<10,     /* extid only */
  61                 Extidrev22 = 1<<10,     /* extid only */
  62                 Extidrev23 = 2<<10,     /* extid only */
  63                 Extidprim = 0<<14,      /* extid only */
  64                 Extidsec0 = 1<<14,      /* extid only */
  65                 Extidsec1 = 2<<14,      /* extid only */
  66                 Extidsec2 = 3<<14,      /* extid only */
  67                 Extcsrmadc = 1<<9,      /* extcsr only */
  68                 Extcsrspcv = 1<<10,     /* extcsr only */
  69                 Extcsrpri = 1<<11,      /* extcsr only */
  70                 Extcsrprj = 1<<12,      /* extcsr only */
  71                 Extcsrprk = 1<<13,      /* extcsr only */
  72                 Extcsrprl = 1<<14,      /* extcsr only */
  73                 Extcsrvcfg = 1<<15,     /* extcsr only */
  74         Pcmfrontdacrate = 0x2C,
  75         Pcmsurrounddacrate = 0x2E,
  76         Pcmlfedacrate = 0x30,
  77         Pcmadcrate = 0x32,
  78         Pcmmicadcrate = 0x34,
  79         CenterLfe = 0x36,
  80         LrSurround = 0x38,
  81         Spdifcsr = 0x3a,
  82                 Spdifpro = 1<<0,
  83                 Spdifnonaudio = 1<<1,
  84                 Spdifcopy = 1<<2,
  85                 Spdifpre = 1<<3,
  86                 SpdifCC = 0x7f<<4,
  87                 Spdifl = 1<<11,
  88                 Spdif44k1 = 0<<12,
  89                 Spdif32k = 1<<12,
  90                 Spdif48k = 2<<12,
  91                 Spdifdsr = 1<<14,
  92                 Spdifv = 1<<15,
  93         VID1 = 0x7c,
  94         VID2 = 0x7e,
  95 };
  96
  97 enum {
  98         Vmaster,
  99         Vhead,
 100         Vaudio,
 101         Vcd,
 102         Vbass,
 103         Vtreb,
 104         Vbeep,
 105         Vphone,
 106         Vmic,
 107         Vline,
 108         Vvideo,
 109         Vaux,
 110         Vrecgain,
 111         Vmicgain,
 112         Vspeed,
 113         Vdelay,
 114 };
 115
 116 static Volume voltab[] = {
 117         [Vmaster] "master", 0x02, -63, Stereo, 0,
 118         [Vaudio] "audio", 0x18, -31, Stereo, 0,
 119         [Vhead] "head", 0x04, -31, Stereo, Capheadphones,
 120         [Vbass] "bass", 0x08, 15, Left, Captonectl,
 121         [Vtreb] "treb", 0x08, 15, Right, Captonectl,
 122         [Vbeep] "beep", 0x0a, -31, Right, 0,
 123         [Vphone] "phone", 0x0c, -31, Right, 0,
 124         [Vmic] "mic", 0x0e, -31, Right, Capmic,
 125         [Vline] "line", 0x10, -31, Stereo, 0,
 126         [Vcd] "cd", 0x12, -31, Stereo,  0,
 127         [Vvideo] "video", 0x14, -31, Stereo, 0,
 128         [Vaux] "aux", 0x16, -63, Stereo, 0,
 129         [Vrecgain] "recgain", 0x1c, 15, Stereo, 0,
 130         [Vmicgain] "micgain", 0x1e, 15, Right, Capmic,
 131         [Vspeed] "speed", 0x2c, 0, Absolute, 0,
 132         [Vdelay] "delay", 0, 0, Absolute, 0,
 133         0
 134 };
 135
 136 typedef struct Mixer Mixer;
 137 struct Mixer
 138 {
 139         ushort (*rr)(Audio *, int);
 140         void (*wr)(Audio *, int, ushort);
 141         int vra;
 142 };
 143
 144 static int
 145 ac97volget(Audio *adev, int x, int a[2])
 146 {
 147         Mixer *m = adev->mixer;
 148         Volume *vol;
 149         ushort v;
 150
 151         vol = voltab+x;
 152         switch(vol->type){
 153         case Absolute:
 154                 if(x == Vdelay){
 155                         a[0] = adev->delay;
 156                         break;
 157                 }
 158                 a[0] = m->rr(adev, vol->reg);
 159                 break;
 160         default:
 161                 v = m->rr(adev, vol->reg);
 162                 if(v & 0x8000){
 163                         a[0] = a[1] = vol->range < 0 ? 0x7f : 0;
 164                 } else {
 165                         a[0] = ((v>>8) & 0x7f);
 166                         a[1] = (v & 0x7f);
 167                 }
 168         }
 169         return 0;
 170 }
 171
 172 static int
 173 ac97volset(Audio *adev, int x, int a[2])
 174 {
 175         Mixer *m = adev->mixer;
 176         Volume *vol;
 177         ushort v, w;
 178
 179         vol = voltab+x;
 180         switch(vol->type){
 181         case Absolute:
 182                 if(x == Vdelay){
 183                         adev->delay = a[0];
 184                         return 0;
 185                 }
 186                 m->wr(adev, vol->reg, a[0]);
 187                 if(x == Vspeed){
 188                         m->wr(adev, 0x32, a[0]);        /* adc rate */
 189                         adev->speed = m->rr(adev, vol->reg);
 190                 }
 191                 break;
 192         case Left:
 193                 v = a[0] & 0x7f;
 194                 w = m->rr(adev, vol->reg) & 0x7f;
 195                 m->wr(adev, vol->reg, (v<<8)|w);
 196                 break;
 197         case Right:
 198                 v = m->rr(adev, vol->reg) & 0x7f00;
 199                 w = a[1] & 0x7f;
 200                 m->wr(adev, vol->reg, v|w);
 201                 break;
 202         case Stereo:
 203                 v = a[0] & 0x7f;
 204                 w = a[1] & 0x7f;
 205                 m->wr(adev, vol->reg, (v<<8)|w);
 206                 break;
 207         }
 208         return 0;
 209 }
 210
 211
 212 static long
 213 ac97mixread(Audio *adev, void *a, long n, vlong)
 214 {
 215         Mixer *m = adev->mixer;
 216         ulong caps;
 217
 218         caps = m->rr(adev, Reset);
 219         caps |= m->rr(adev, Extid) << 16;
 220         return genaudiovolread(adev, a, n, 0, voltab, ac97volget, caps);
 221 }
 222
 223 static long
 224 ac97mixwrite(Audio *adev, void *a, long n, vlong)
 225 {
 226         Mixer *m = adev->mixer;
 227         ulong caps;
 228
 229         caps = m->rr(adev, Reset);
 230         caps |= m->rr(adev, Extid) << 16;
 231         return genaudiovolwrite(adev, a, n, 0, voltab, ac97volset, caps);
 232 }
 233
 234 void
 235 ac97mixreset(Audio *adev, void (*wr)(Audio*,int,ushort), ushort (*rr)(Audio*,int))
 236 {
 237         Mixer *m;
 238         ushort t;
 239         int i;
 240
 241         m = malloc(sizeof(Mixer));
 242         if(m == nil){
 243                 print("ac97mix: no memory for Mixer\n");
 244                 return;
 245         }
 246         m->wr = wr;
 247         m->rr = rr;
 248         m->wr(adev, Reset, 0);
 249         m->wr(adev, Powerdowncsr, 0);
 250
 251         t = (Adcpower | Dacpower | Anlpower | Refpower);
 252         for(i = 0; i < Maxbusywait; i++){
 253                 if((m->rr(adev, Powerdowncsr) & t) == t)
 254                         break;
 255                 microdelay(1);
 256         }
 257         if(i == Maxbusywait)
 258                 print("#A%d: ac97 exhausted waiting powerup\n", adev->ctlrno);
 259
 260         t = m->rr(adev, Extid);
 261         print("#A%d: ac97 codec ext:%s%s%s%s%s%s%s\n", adev->ctlrno,
 262                 (t & Extvra) ? " vra" : "",
 263                 (t & Extdra) ? " dra" : "",
 264                 (t & Extspdif) ? " spdif" : "",
 265                 (t & Extvrm) ? " vrm" : "",
 266                 (t & Extcdac) ? " cdac" : "",
 267                 (t & Extsdac) ? " sdac" : "",
 268                 (t & Extldac) ? " ldac" : "");
 269
 270         if(t & Extvra){
 271                 m->wr(adev, Extcsr, Extvra);
 272                 m->vra = 1;
 273         } else {
 274                 print("#A%d: ac97 vra extension not supported\n", adev->ctlrno);
 275                 m->vra = 0;
 276         }
 277
 278         adev->mixer = m;
 279         adev->volread = ac97mixread;
 280         adev->volwrite = ac97mixwrite;
 281 }