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Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:16:14 2008 UTC (16 years, 3 months ago) by nbrk
Import of OpenBSD 4.2 release kernel tree with initial code to support Jornada 720/728, StrongARM 1110-based handheld PC. At this point kernel roots on NFS and boots into vfs_mountroot() and traps. What is supported: - glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode (needs some palette tweaks for non black/white/blue colors, i think) - saic, SA11x0 interrupt controller (needs cleanup) - sacom, SA11x0 UART (supported only as boot console for now) - SA11x0 GPIO controller fully supported (but can't handle multiple interrupt handlers on one gpio pin) - sassp, SSP port on SA11x0 that attaches spibus - Jornada microcontroller (jmcu) to control kbd, battery, etc throught the SPI bus (wskbd attaches on jmcu, but not tested) - tod functions seem work - initial code for SA-1111 (chip companion) : this is TODO Next important steps, i think: - gpio and intc on sa1111 - pcmcia support for sa11x0 (and sa1111 help logic) - REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs) - root on wd0! (using already supported PCMCIA-ATA) |
/*- * ---------------------------------------------------------------------------- * "THE BEER-WARE LICENSE" (Revision 42): * <phk@FreeBSD.ORG> wrote this file. As long as you retain this notice you * can do whatever you want with this stuff. If we meet some day, and you think * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp * ---------------------------------------------------------------------------- * * $OpenBSD: timetc.h,v 1.2 2006/10/30 20:19:33 otto Exp $ * $FreeBSD: src/sys/sys/timetc.h,v 1.57 2003/04/10 23:07:24 des Exp $ */ #ifndef _SYS_TIMETC_H_ #define _SYS_TIMETC_H_ #ifndef _KERNEL #error "no user-serviceable parts inside" #endif /*- * `struct timecounter' is the interface between the hardware which implements * a timecounter and the MI code which uses this to keep track of time. * * A timecounter is a binary counter which has two properties: * * it runs at a fixed, known frequency. * * it has sufficient bits to not roll over in less than approximately * max(2 msec, 2/HZ seconds). (The value 2 here is really 1 + delta, * for some indeterminate value of delta.) */ struct timecounter; typedef u_int timecounter_get_t(struct timecounter *); typedef void timecounter_pps_t(struct timecounter *); struct timecounter { timecounter_get_t *tc_get_timecount; /* * This function reads the counter. It is not required to * mask any unimplemented bits out, as long as they are * constant. */ timecounter_pps_t *tc_poll_pps; /* * This function is optional. It will be called whenever the * timecounter is rewound, and is intended to check for PPS * events. Normal hardware does not need it but timecounters * which latch PPS in hardware (like sys/pci/xrpu.c) do. */ u_int tc_counter_mask; /* This mask should mask off any unimplemented bits. */ u_int64_t tc_frequency; /* Frequency of the counter in Hz. */ char *tc_name; /* Name of the timecounter. */ int tc_quality; /* * Used to determine if this timecounter is better than * another timecounter higher means better. Negative * means "only use at explicit request". */ void *tc_priv; /* Pointer to the timecounter's private parts. */ struct timecounter *tc_next; /* Pointer to the next timecounter. */ int64_t tc_freq_adj; /* Current frequency adjustment. */ }; extern struct timecounter *timecounter; u_int64_t tc_getfrequency(void); void tc_init(struct timecounter *tc); void tc_setclock(struct timespec *ts); void tc_ticktock(void); void inittimecounter(void); int sysctl_tc(int *, u_int, void *, size_t *, void *, size_t); int tc_adjfreq(int64_t *, int64_t *); #endif /* !_SYS_TIMETC_H_ */