mirror of
https://git.FreeBSD.org/src.git
synced 2025-01-17 15:27:36 +00:00
Fix so that this driver works again when compiled with EGCS (which
apparently has a much better optimiser, requiring 'volatile' memory to be declared as such).
This commit is contained in:
David Nugent
parent
e7f807a217
commit
a09d51d0a5
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=45938
@ -1,5 +1,5 @@
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/*-
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* dgb.c $Id: dgb.c,v 1.42 1999/01/30 12:17:32 phk Exp $
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* dgb.c $Id: dgb.c,v 1.43 1999/03/13 13:20:54 joerg Exp $
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*
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* Digiboard driver.
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*
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@ -519,8 +519,8 @@ dgbattach(dev)
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int unit=dev->id_unit;
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struct dgb_softc *sc= &dgb_softc[dev->id_unit];
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int i, t;
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u_char *mem;
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u_char *ptr;
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u_char volatile *mem;
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u_char volatile *ptr;
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int addr;
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struct dgb_p *port;
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volatile struct board_chan *bc;
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@ -591,8 +591,8 @@ dgbattach(dev)
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/* very short memory test */
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addr=setinitwin(sc,BOTWIN);
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*(u_long *)(mem+addr) = 0xA55A3CC3;
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if(*(u_long *)(mem+addr)!=0xA55A3CC3) {
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*(u_long volatile *)(mem+addr) = 0xA55A3CC3;
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if(*(u_long volatile *)(mem+addr)!=0xA55A3CC3) {
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printf("dgb%d: 1st memory test failed\n",dev->id_unit);
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sc->status=DISABLED;
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hidewin(sc);
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@ -600,8 +600,8 @@ dgbattach(dev)
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}
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addr=setinitwin(sc,TOPWIN);
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*(u_long *)(mem+addr) = 0x5AA5C33C;
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if(*(u_long *)(mem+addr)!=0x5AA5C33C) {
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*(u_long volatile *)(mem+addr) = 0x5AA5C33C;
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if(*(u_long volatile *)(mem+addr)!=0x5AA5C33C) {
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printf("dgb%d: 2nd memory test failed\n",dev->id_unit);
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sc->status=DISABLED;
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hidewin(sc);
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@ -609,8 +609,8 @@ dgbattach(dev)
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}
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addr=setinitwin(sc,BIOSCODE+((0xF000-sc->mem_seg)<<4));
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*(u_long *)(mem+addr) = 0x5AA5C33C;
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if(*(u_long *)(mem+addr)!=0x5AA5C33C) {
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*(u_long volatile *)(mem+addr) = 0x5AA5C33C;
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if(*(u_long volatile *)(mem+addr)!=0x5AA5C33C) {
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printf("dgb%d: 3rd (BIOS) memory test failed\n",dev->id_unit);
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}
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@ -659,14 +659,14 @@ dgbattach(dev)
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DPRINT3(DB_INFO,"dgb%d: reset dropped after %d us\n",unit,i);
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for(i=0; i<200000; i++) {
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if( *((ushort *)(mem+MISCGLOBAL)) == *((ushort *)"GD") )
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if( *((ushort volatile *)(mem+MISCGLOBAL)) == *((ushort *)"GD") )
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goto load_fep;
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DELAY(1);
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}
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printf("dgb%d: BIOS download failed\n",dev->id_unit);
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DPRINT4(DB_EXCEPT,"dgb%d: code=0x%x must be 0x%x\n",
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dev->id_unit,
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*((ushort *)(mem+MISCGLOBAL)),
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*((ushort volatile *)(mem+MISCGLOBAL)),
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*((ushort *)"GD"));
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sc->status=DISABLED;
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@ -716,16 +716,16 @@ dgbattach(dev)
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addr=setwin(sc,MISCGLOBAL);
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for(i=0; i<200000; i++) {
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if(*(ushort *)(mem+addr)== *(ushort *)"GD")
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if(*(ushort volatile *)(mem+addr)== *(ushort *)"GD")
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goto load_fep;
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DELAY(1);
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}
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printf("dgb%d: BIOS download failed\n",dev->id_unit);
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DPRINT5(DB_EXCEPT,"dgb%d: Error#(0x%x,0x%x) code=0x%x\n",
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dev->id_unit,
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*(ushort *)(mem+0xC12),
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*(ushort *)(mem+0xC14),
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*(ushort *)(mem+MISCGLOBAL));
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*(ushort volatile *)(mem+0xC12),
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*(ushort volatile *)(mem+0xC14),
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*(ushort volatile *)(mem+MISCGLOBAL));
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sc->status=DISABLED;
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hidewin(sc);
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@ -743,21 +743,21 @@ dgbattach(dev)
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*ptr++ = pcxx_cook[i];
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addr=setwin(sc,MBOX);
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*(ushort *)(mem+addr+ 0)=2;
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*(ushort *)(mem+addr+ 2)=sc->mem_seg+FEPCODESEG;
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*(ushort *)(mem+addr+ 4)=0;
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*(ushort *)(mem+addr+ 6)=FEPCODESEG;
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*(ushort *)(mem+addr+ 8)=0;
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*(ushort *)(mem+addr+10)=pcxx_ncook;
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*(ushort volatile *)(mem+addr+ 0)=2;
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*(ushort volatile *)(mem+addr+ 2)=sc->mem_seg+FEPCODESEG;
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*(ushort volatile *)(mem+addr+ 4)=0;
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*(ushort volatile *)(mem+addr+ 6)=FEPCODESEG;
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*(ushort volatile *)(mem+addr+ 8)=0;
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*(ushort volatile *)(mem+addr+10)=pcxx_ncook;
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outb(sc->port,FEPMEM|FEPINT); /* send interrupt to BIOS */
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outb(sc->port,FEPMEM);
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for(i=0; *(ushort *)(mem+addr)!=0; i++) {
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for(i=0; *(ushort volatile *)(mem+addr)!=0; i++) {
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if(i>200000) {
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printf("dgb%d: FEP code download failed\n",unit);
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DPRINT3(DB_EXCEPT,"dgb%d: code=0x%x must be 0\n", unit,
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*(ushort *)(mem+addr));
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*(ushort volatile *)(mem+addr));
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sc->status=DISABLED;
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hidewin(sc);
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return 0;
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@ -766,17 +766,17 @@ dgbattach(dev)
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DPRINT2(DB_INFO,"dgb%d: FEP code loaded\n",unit);
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*(ushort *)(mem+setwin(sc,FEPSTAT))=0;
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*(ushort volatile *)(mem+setwin(sc,FEPSTAT))=0;
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addr=setwin(sc,MBOX);
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*(ushort *)(mem+addr+0)=1;
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*(ushort *)(mem+addr+2)=FEPCODESEG;
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*(ushort *)(mem+addr+4)=0x4;
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*(ushort volatile *)(mem+addr+0)=1;
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*(ushort volatile *)(mem+addr+2)=FEPCODESEG;
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*(ushort volatile *)(mem+addr+4)=0x4;
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outb(sc->port,FEPINT); /* send interrupt to BIOS */
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outb(sc->port,FEPCLR);
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addr=setwin(sc,FEPSTAT);
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for(i=0; *(ushort *)(mem+addr)!= *(ushort *)"OS"; i++) {
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for(i=0; *(ushort volatile *)(mem+addr)!= *(ushort *)"OS"; i++) {
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if(i>200000) {
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printf("dgb%d: FEP/OS start failed\n",dev->id_unit);
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sc->status=DISABLED;
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@ -787,7 +787,7 @@ dgbattach(dev)
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DPRINT2(DB_INFO,"dgb%d: FEP/OS started\n",dev->id_unit);
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sc->numports= *(ushort *)(mem+setwin(sc,NPORT));
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sc->numports= *(ushort volatile *)(mem+setwin(sc,NPORT));
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printf("dgb%d: %d ports\n",unit,sc->numports);
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@ -809,7 +809,7 @@ dgbattach(dev)
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nports+=sc->numports;
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addr=setwin(sc,PORTBASE);
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pstat=(ushort *)(mem+addr);
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pstat=(ushort volatile *)(mem+addr);
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for(i=0; i<sc->numports && pstat[i]; i++)
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if(pstat[i])
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@ -1,5 +1,5 @@
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/*-
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* dgb.c $Id: dgb.c,v 1.42 1999/01/30 12:17:32 phk Exp $
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* dgb.c $Id: dgb.c,v 1.43 1999/03/13 13:20:54 joerg Exp $
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*
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* Digiboard driver.
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*
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@ -519,8 +519,8 @@ dgbattach(dev)
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int unit=dev->id_unit;
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struct dgb_softc *sc= &dgb_softc[dev->id_unit];
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int i, t;
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u_char *mem;
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u_char *ptr;
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u_char volatile *mem;
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u_char volatile *ptr;
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int addr;
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struct dgb_p *port;
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volatile struct board_chan *bc;
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@ -591,8 +591,8 @@ dgbattach(dev)
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/* very short memory test */
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addr=setinitwin(sc,BOTWIN);
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*(u_long *)(mem+addr) = 0xA55A3CC3;
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if(*(u_long *)(mem+addr)!=0xA55A3CC3) {
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*(u_long volatile *)(mem+addr) = 0xA55A3CC3;
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if(*(u_long volatile *)(mem+addr)!=0xA55A3CC3) {
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printf("dgb%d: 1st memory test failed\n",dev->id_unit);
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sc->status=DISABLED;
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hidewin(sc);
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@ -600,8 +600,8 @@ dgbattach(dev)
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}
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addr=setinitwin(sc,TOPWIN);
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*(u_long *)(mem+addr) = 0x5AA5C33C;
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if(*(u_long *)(mem+addr)!=0x5AA5C33C) {
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*(u_long volatile *)(mem+addr) = 0x5AA5C33C;
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if(*(u_long volatile *)(mem+addr)!=0x5AA5C33C) {
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printf("dgb%d: 2nd memory test failed\n",dev->id_unit);
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sc->status=DISABLED;
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hidewin(sc);
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@ -609,8 +609,8 @@ dgbattach(dev)
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}
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addr=setinitwin(sc,BIOSCODE+((0xF000-sc->mem_seg)<<4));
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*(u_long *)(mem+addr) = 0x5AA5C33C;
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if(*(u_long *)(mem+addr)!=0x5AA5C33C) {
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*(u_long volatile *)(mem+addr) = 0x5AA5C33C;
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if(*(u_long volatile *)(mem+addr)!=0x5AA5C33C) {
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printf("dgb%d: 3rd (BIOS) memory test failed\n",dev->id_unit);
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}
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@ -659,14 +659,14 @@ dgbattach(dev)
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DPRINT3(DB_INFO,"dgb%d: reset dropped after %d us\n",unit,i);
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for(i=0; i<200000; i++) {
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if( *((ushort *)(mem+MISCGLOBAL)) == *((ushort *)"GD") )
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if( *((ushort volatile *)(mem+MISCGLOBAL)) == *((ushort *)"GD") )
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goto load_fep;
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DELAY(1);
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}
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printf("dgb%d: BIOS download failed\n",dev->id_unit);
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DPRINT4(DB_EXCEPT,"dgb%d: code=0x%x must be 0x%x\n",
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dev->id_unit,
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*((ushort *)(mem+MISCGLOBAL)),
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*((ushort volatile *)(mem+MISCGLOBAL)),
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*((ushort *)"GD"));
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sc->status=DISABLED;
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@ -716,16 +716,16 @@ dgbattach(dev)
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addr=setwin(sc,MISCGLOBAL);
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for(i=0; i<200000; i++) {
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if(*(ushort *)(mem+addr)== *(ushort *)"GD")
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if(*(ushort volatile *)(mem+addr)== *(ushort *)"GD")
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goto load_fep;
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DELAY(1);
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}
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printf("dgb%d: BIOS download failed\n",dev->id_unit);
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DPRINT5(DB_EXCEPT,"dgb%d: Error#(0x%x,0x%x) code=0x%x\n",
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dev->id_unit,
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*(ushort *)(mem+0xC12),
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*(ushort *)(mem+0xC14),
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*(ushort *)(mem+MISCGLOBAL));
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*(ushort volatile *)(mem+0xC12),
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*(ushort volatile *)(mem+0xC14),
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*(ushort volatile *)(mem+MISCGLOBAL));
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sc->status=DISABLED;
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hidewin(sc);
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@ -743,21 +743,21 @@ dgbattach(dev)
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*ptr++ = pcxx_cook[i];
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addr=setwin(sc,MBOX);
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*(ushort *)(mem+addr+ 0)=2;
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*(ushort *)(mem+addr+ 2)=sc->mem_seg+FEPCODESEG;
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*(ushort *)(mem+addr+ 4)=0;
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*(ushort *)(mem+addr+ 6)=FEPCODESEG;
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*(ushort *)(mem+addr+ 8)=0;
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*(ushort *)(mem+addr+10)=pcxx_ncook;
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*(ushort volatile *)(mem+addr+ 0)=2;
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*(ushort volatile *)(mem+addr+ 2)=sc->mem_seg+FEPCODESEG;
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*(ushort volatile *)(mem+addr+ 4)=0;
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*(ushort volatile *)(mem+addr+ 6)=FEPCODESEG;
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*(ushort volatile *)(mem+addr+ 8)=0;
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*(ushort volatile *)(mem+addr+10)=pcxx_ncook;
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outb(sc->port,FEPMEM|FEPINT); /* send interrupt to BIOS */
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outb(sc->port,FEPMEM);
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for(i=0; *(ushort *)(mem+addr)!=0; i++) {
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for(i=0; *(ushort volatile *)(mem+addr)!=0; i++) {
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if(i>200000) {
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printf("dgb%d: FEP code download failed\n",unit);
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DPRINT3(DB_EXCEPT,"dgb%d: code=0x%x must be 0\n", unit,
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*(ushort *)(mem+addr));
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*(ushort volatile *)(mem+addr));
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sc->status=DISABLED;
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hidewin(sc);
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return 0;
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@ -766,17 +766,17 @@ dgbattach(dev)
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DPRINT2(DB_INFO,"dgb%d: FEP code loaded\n",unit);
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*(ushort *)(mem+setwin(sc,FEPSTAT))=0;
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*(ushort volatile *)(mem+setwin(sc,FEPSTAT))=0;
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addr=setwin(sc,MBOX);
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*(ushort *)(mem+addr+0)=1;
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*(ushort *)(mem+addr+2)=FEPCODESEG;
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*(ushort *)(mem+addr+4)=0x4;
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*(ushort volatile *)(mem+addr+0)=1;
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*(ushort volatile *)(mem+addr+2)=FEPCODESEG;
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*(ushort volatile *)(mem+addr+4)=0x4;
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outb(sc->port,FEPINT); /* send interrupt to BIOS */
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outb(sc->port,FEPCLR);
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addr=setwin(sc,FEPSTAT);
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for(i=0; *(ushort *)(mem+addr)!= *(ushort *)"OS"; i++) {
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for(i=0; *(ushort volatile *)(mem+addr)!= *(ushort *)"OS"; i++) {
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if(i>200000) {
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printf("dgb%d: FEP/OS start failed\n",dev->id_unit);
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sc->status=DISABLED;
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@ -787,7 +787,7 @@ dgbattach(dev)
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DPRINT2(DB_INFO,"dgb%d: FEP/OS started\n",dev->id_unit);
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sc->numports= *(ushort *)(mem+setwin(sc,NPORT));
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sc->numports= *(ushort volatile *)(mem+setwin(sc,NPORT));
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printf("dgb%d: %d ports\n",unit,sc->numports);
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@ -809,7 +809,7 @@ dgbattach(dev)
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nports+=sc->numports;
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addr=setwin(sc,PORTBASE);
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pstat=(ushort *)(mem+addr);
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pstat=(ushort volatile *)(mem+addr);
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for(i=0; i<sc->numports && pstat[i]; i++)
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if(pstat[i])
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