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audioac97: support for ICH4-ICH7 based cards with memory mapped registers (thanks echoline)

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This commit is contained in:
cinap_lenrek 2016-12-05 18:32:58 +01:00
parent 978628d679
commit 7a145e89b3
1 changed files with 93 additions and 34 deletions
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127
sys/src/9/pc/audioac97.c
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@ -50,6 +50,9 @@ struct Ctlr {
ulong port;
ulong mixport;
uchar *mmreg;
uchar *mmmix;
int ismmio;
Ring inring, micring, outring;
@ -61,9 +64,6 @@ struct Ctlr {
Ctlr *next;
};
#define iorl(c, r) (inl((c)->port+(r)))
#define iowl(c, r, l) (outl((c)->port+(r), (ulong)(l)))
enum {
In = 0x00,
Out = 0x10,
@ -192,12 +192,50 @@ writering(Ring *r, uchar *p, long n)
return n0 - n;
}
#define csr8r(c, r) (inb((c)->port+(r)))
#define csr16r(c, r) (ins((c)->port+(r)))
#define csr32r(c, r) (inl((c)->port+(r)))
#define csr8w(c, r, b) (outb((c)->port+(r), (int)(b)))
#define csr16w(c, r, w) (outs((c)->port+(r), (ushort)(w)))
#define csr32w(c, r, w) (outl((c)->port+(r), (ulong)(w)))
static uchar
csr8r(Ctlr *c, int r){
if(c->ismmio)
return *(uchar*)(c->mmreg+r);
return inb(c->port+r);
}
static ushort
csr16r(Ctlr *c, int r){
if(c->ismmio)
return *(ushort*)(c->mmreg+r);
return ins(c->port+r);
}
static ulong
csr32r(Ctlr *c, int r){
if(c->ismmio)
return *(ulong*)(c->mmreg+r);
return inl(c->port+r);
}
static void
csr8w(Ctlr *c, int r, uchar v){
if(c->ismmio)
*(uchar*)(c->mmreg+r) = v;
else
outb(c->port+r, (int)v);
}
static void
csr16w(Ctlr *c, int r, ushort v){
if(c->ismmio)
*(ushort*)(c->mmreg+r) = v;
else
outs(c->port+r, v);
}
static void
csr32w(Ctlr *c, int r, ulong v){
if(c->ismmio)
*(ulong*)(c->mmreg+r) = v;
else
outl(c->port+r, v);
}
/* audioac97mix */
extern void ac97mixreset(Audio *,
@ -210,13 +248,12 @@ ac97waitcodec(Audio *adev)
Ctlr *ctlr;
int i;
ctlr = adev->ctlr;
for(i = 0; i < Maxbusywait/10; i++){
for(i = 0; i <= Maxbusywait/10; i++){
if((csr8r(ctlr, Cas) & Casp) == 0)
break;
return;
microdelay(10);
}
if(i == Maxbusywait)
print("#A%d: ac97 exhausted waiting codec access\n", adev->ctlrno);
print("#A%d: ac97 exhausted waiting codec access\n", adev->ctlrno);
}
static void
@ -225,7 +262,10 @@ ac97mixw(Audio *adev, int port, ushort val)
Ctlr *ctlr;
ac97waitcodec(adev);
ctlr = adev->ctlr;
outs(ctlr->mixport+port, val);
if(ctlr->ismmio)
*(ushort*)(ctlr->mmmix+port) = val;
else
outs(ctlr->mixport+port, val);
}
static ushort
@ -234,6 +274,8 @@ ac97mixr(Audio *adev, int port)
Ctlr *ctlr;
ac97waitcodec(adev);
ctlr = adev->ctlr;
if(ctlr->ismmio)
return *(ushort*)(ctlr->mmmix+port);
return ins(ctlr->mixport+port);
}
@ -471,27 +513,44 @@ Found:
adev->ctlr = ctlr;
ctlr->adev = adev;
if((p->mem[0].bar & 1) == 0 || (p->mem[1].bar & 1) == 0){
print("ac97: not i/o regions 0x%04lux 0x%04lux\n", p->mem[0].bar, p->mem[1].bar);
return -1;
}
/* ICH4 through ICH7 may use memory-type base address registers */
if(p->vid == 0x8086 &&
(p->did == 0x24c5 || p->did == 0x24d5 || p->did == 0x266e || p->did == 0x27de) &&
(p->mem[2].bar != 0 && p->mem[3].bar != 0) &&
((p->mem[2].bar & 1) == 0 && (p->mem[3].bar & 1) == 0)){
ctlr->mmmix = vmap(p->mem[2].bar & ~0xf, p->mem[2].size);
if(ctlr->mmmix == nil){
print("ac97: vmap failed for mmmix 0x%08lux\n", p->mem[2].bar);
return -1;
}
ctlr->mmreg = vmap(p->mem[3].bar & ~0xf, p->mem[3].size);
if(ctlr->mmreg == nil){
print("ac97: vmap failed for mmreg 0x%08lux\n", p->mem[3].bar);
vunmap(ctlr->mmmix, p->mem[2].size);
return -1;
}
ctlr->ismmio = 1;
}else{
if((p->mem[0].bar & 1) == 0 || (p->mem[1].bar & 1) == 0){
print("ac97: not i/o regions 0x%04lux 0x%04lux\n", p->mem[0].bar, p->mem[1].bar);
return -1;
}
i = 1;
if(p->vid == 0x1039 && p->did == 0x7012){
ctlr->sis7012 = 1;
//i = 0; i/o bars swaped?
}
ctlr->port = p->mem[i].bar & ~3;
if(ioalloc(ctlr->port, p->mem[i].size, 0, "ac97") < 0){
print("ac97: ioalloc failed for port 0x%04lux\n", ctlr->port);
return -1;
}
i = (i+1) & 1;
ctlr->mixport = p->mem[i].bar & ~3;
if(ioalloc(ctlr->mixport, p->mem[i].size, 0, "ac97mix") < 0){
print("ac97: ioalloc failed for mixport 0x%04lux\n", ctlr->mixport);
iofree(ctlr->port);
return -1;
if(p->vid == 0x1039 && p->did == 0x7012){
ctlr->sis7012 = 1; /* i/o bars swapped? */
}
ctlr->port = p->mem[1].bar & ~3;
if(ioalloc(ctlr->port, p->mem[1].size, 0, "ac97") < 0){
print("ac97: ioalloc failed for port 0x%04lux\n", ctlr->port);
return -1;
}
ctlr->mixport = p->mem[0].bar & ~3;
if(ioalloc(ctlr->mixport, p->mem[0].size, 0, "ac97mix") < 0){
print("ac97: ioalloc failed for mixport 0x%04lux\n", ctlr->mixport);
iofree(ctlr->port);
return -1;
}
}
irq = p->intl;