diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2011-08-18 19:55:44 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2011-08-18 19:55:44 +0000 |
| commit | 10bf584eedef89396c2517839d033fced9385366 (patch) | |
| tree | 9712a0ff7ab0103020343878cb6cba810d1d22ce /sys/arch/hp300 | |
| parent | a711847f4feef69cf72f32e0c0b5a42dc2a17fda (diff) | |
Fix various lies in comments, extend hex constants to 8 hex digits for easier
reading, and introduce a define for the DIO-II device size, as reported by
the device itself (in quarters of select code span, just to make things
more complicated than necessary).
Diffstat (limited to 'sys/arch/hp300')
| -rw-r--r-- | sys/arch/hp300/dev/dioreg.h | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/sys/arch/hp300/dev/dioreg.h b/sys/arch/hp300/dev/dioreg.h index a612ceaec9c..f481593d169 100644 --- a/sys/arch/hp300/dev/dioreg.h +++ b/sys/arch/hp300/dev/dioreg.h @@ -1,4 +1,4 @@ -/* $OpenBSD: dioreg.h,v 1.6 2010/04/15 20:38:09 miod Exp $ */ +/* $OpenBSD: dioreg.h,v 1.7 2011/08/18 19:55:43 miod Exp $ */ /* $NetBSD: dioreg.h,v 1.3 1997/01/30 09:18:40 thorpej Exp $ */ /*- @@ -53,8 +53,8 @@ #define DIO_IHPIBADDR 0x478000 /* internal HP-IB; select code 7 */ /* - * DIO ranges from select codes 0-63 at physical addresses given by: - * 0x600000 + (sc - 32) * 0x10000 + * DIO ranges from select codes 0-31 at physical addresses given by: + * 0x600000 + sc * 0x10000 * DIO cards are addressed in the range 0-31 [0x600000-0x800000) for * their control space and the remaining areas, [0x200000-0x400000) and * [0x800000-0x1000000), are for additional space required by a card; @@ -68,13 +68,14 @@ * are mapped into kernel virtual address space allocated from a range * of EIOMAPSIZE pages (vmparam.h) starting at ``extiobase''. */ -#define DIO_BASE 0x600000 /* start of DIO space */ -#define DIO_END 0x1000000 /* end of DIO space */ -#define DIO_DEVSIZE 0x10000 /* size of a DIO device */ +#define DIO_BASE 0x00600000 /* start of DIO space */ +#define DIO_END 0x01000000 /* end of DIO space */ +#define DIO_DEVSIZE 0x00010000 /* size of a DIO device */ #define DIOII_BASE 0x01000000 /* start of DIO-II space */ #define DIOII_END 0x20000000 /* end of DIO-II space */ -#define DIOII_DEVSIZE 0x00400000 /* size of a DIO-II device */ +#define DIOII_DEVSIZE 0x00400000 /* size of a DIO-II scode */ +#define DIOII_DEVSIZE_UNIT 0x00100000 /* unit of DIO-II size */ /* * Find the highest select code for a given machine; HP320 doesn't @@ -106,7 +107,7 @@ ((id) == DIO_DEVICE_ID_FRAMEBUFFER) /* - * Macro to extract primary and decondary device ids, given + * Macro to extract primary and secondary device ids, given * the base address of the device. */ #define DIO_ID(base) \ @@ -127,7 +128,7 @@ */ #define DIOII_SIZE(base) \ ((int)((*((u_int8_t *)((u_long)(base) + DIOII_SIZEOFF)) + 1) \ - * 0x100000)) + * DIOII_DEVSIZE_UNIT)) /* * Given a select code and device base address, compute |