1991/0115/gnot/devport.c (diff list | history)

1991/0115/sys/src/9/gnot/devport.c:106,112 – 1991/0411/sys/src/9/gnot/devport.c:106,112 (short | long | prev | next)
1991/0110		{} long portread(Chan *c, char *a, long n)
1991/0411		portread(Chan *c, char *a, long n, ulong offset)
1991/0110		{ long s, k; if (n == 0)
1991/0115/sys/src/9/gnot/devport.c:115,123 – 1991/0411/sys/src/9/gnot/devport.c:115,123
1991/0110		case Qdir: return devdirread(c, a, n, portdir, NPORT, devgen); case Qdata: if (!conf.portispaged || (s = c->offset >> PORTSHIFT) > 0xff)
1991/0411		if (!conf.portispaged || (s = offset >> PORTSHIFT) > 0xff)
1991/0110		s = -1; k = c->offset % PORTSIZE;
1991/0411		k = offset % PORTSIZE;
1991/0110		P_qlock(s); switch ((int)n) { case 1:
1991/0115/sys/src/9/gnot/devport.c:139,145 – 1991/0411/sys/src/9/gnot/devport.c:139,145
1991/0110		} long portwrite(Chan *c, char *a, long n)
1991/0411		portwrite(Chan *c, char *a, long n, ulong offset)
1991/0110		{ long s, k; if (n == 0)
1991/0115/sys/src/9/gnot/devport.c:146,154 – 1991/0411/sys/src/9/gnot/devport.c:146,154
1991/0110		return 0; switch ((int)c->qid.path) { case Qdata: if (!conf.portispaged || (s = c->offset >> PORTSHIFT) > 0xff)
1991/0411		if (!conf.portispaged || (s = offset >> PORTSHIFT) > 0xff)
1991/0110		s = -1; k = c->offset % PORTSIZE;
1991/0411		k = offset % PORTSIZE;
1991/0110		P_qlock(s); switch ((int)n) { case 1: