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Add yet a quick flag to sio: 0x100000 "Scratch pad register missing".

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The advanced stage of computer assisted hardware design and
verification is aptly illustrated by the fact that this is necessary
because only the first ports in a single-chip, dual-port async
PC-Card product lacks this register.
This commit is contained in:
Poul-Henning Kamp 2002-09-27 22:00:23 +00:00
parent 595ecc67ab
commit 97c6f4f976
1 changed files with 5 additions and 6 deletions
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11
sys/dev/sio/sio.c
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@ -104,6 +104,8 @@
#define COM_ISMULTIPORT(flags) ((flags) & 0x01)
#define COM_MPMASTER(flags) (((flags) >> 8) & 0x0ff)
#define COM_NOTAST4(flags) ((flags) & 0x04)
#else
#define COM_ISMULTIPORT(flags) (0)
#endif /* COM_MULTIPORT */
#define COM_CONSOLE(flags) ((flags) & 0x10)
@ -117,6 +119,7 @@
#define COM_NOPROBE(flags) ((flags) & COM_C_NOPROBE)
#define COM_C_IIR_TXRDYBUG (0x80000)
#define COM_IIR_TXRDYBUG(flags) ((flags) & COM_C_IIR_TXRDYBUG)
#define COM_NOSCR(flags) ((flags) & 0x100000)
#define COM_FIFOSIZE(flags) (((flags) & 0xff000000) >> 24)
#define sio_getreg(com, off) \
@ -968,12 +971,8 @@ sioattach(dev, xrid, rclk)
printf("sio%d: type", unit);
#ifdef COM_MULTIPORT
if (!COM_ISMULTIPORT(flags) && !COM_IIR_TXRDYBUG(flags))
#else
if (!COM_IIR_TXRDYBUG(flags))
#endif
{
if (!COM_ISMULTIPORT(flags) &&
!COM_IIR_TXRDYBUG(flags) && !COM_NOSCR(flags)) {
u_char scr;
u_char scr1;
u_char scr2;