/contrib/ntp/kernel/sys/pcl720.h
https://bitbucket.org/freebsd/freebsd-head/ · C++ Header · 95 lines · 69 code · 8 blank · 18 comment · 0 complexity · 6d2a6c8d1ff72d2638991a7b9aeab770 MD5 · raw file
- /* Copyright (c) 1995 Vixie Enterprises
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies, and that
- * the name of Vixie Enterprises not be used in advertising or publicity
- * pertaining to distribution of the document or software without specific,
- * written prior permission.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND VIXIE ENTERPRISES DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL VIXIE ENTERPRISES
- * BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
- * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
- * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- * SOFTWARE.
- */
- #ifndef _PCL720_DEFINED
- #define _PCL720_DEFINED
- #define pcl720_data(base,bit) (base+(bit>>3))
- #define pcl720_data_0_7(base) (base+0)
- #define pcl720_data_8_15(base) (base+1)
- #define pcl720_data_16_23(base) (base+2)
- #define pcl720_data_24_31(base) (base+3)
- #define pcl720_cntr(base,cntr) (base+4+cntr) /* cntr: 0..2 */
- #define pcl720_cntr_0(base) (base+4)
- #define pcl720_cntr_1(base) (base+5)
- #define pcl720_cntr_2(base) (base+6)
- #define pcl720_ctrl(base) (base+7)
- #ifndef DEBUG_PCL720
- #define pcl720_inb(x) inb(x)
- #define pcl720_outb(x,y) outb(x,y)
- #else
- static unsigned char pcl720_inb(int addr) {
- unsigned char x = inb(addr);
- fprintf(DEBUG_PCL720, "inb(0x%x) -> 0x%x\n", addr, x);
- return (x);
- }
- static void pcl720_outb(int addr, unsigned char x) {
- outb(addr, x);
- fprintf(DEBUG_PCL720, "outb(0x%x, 0x%x)\n", addr, x);
- }
- #endif
- #define pcl720_load(Base,Cntr,Mode,Val) \
- ({ register unsigned int b = Base, c = Cntr, v = Val; \
- i8253_ctrl ctrl; \
- \
- ctrl.s.bcd = i8253_binary; \
- ctrl.s.mode = Mode; \
- ctrl.s.rl = i8253_lmb; \
- ctrl.s.cntr = c; \
- pcl720_outb(pcl720_ctrl(b), ctrl.i); \
- pcl720_outb(pcl720_cntr(b,c), v); \
- pcl720_outb(pcl720_cntr(b,c), v >> 8); \
- v; \
- })
- #define pcl720_read(Base,Cntr) \
- ({ register unsigned int b = Base, v; \
- i8253_ctrl ctrl; \
- \
- ctrl.s.rl = i8253_latch; \
- ctrl.s.cntr = i8253_cntr_0; \
- pcl720_outb(pcl720_ctrl(b), ctrl.i); \
- v = pcl720_inb(pcl720_cntr_0(b)); \
- v |= (pcl720_inb(pcl720_cntr_0(b)) << 8); \
- v; \
- })
- #define pcl720_input(Base) \
- ({ register unsigned int b = Base, v; \
- \
- v = pcl720_inb(pcl720_data_0_7(b)); \
- v |= (pcl720_inb(pcl720_data_8_15(b)) << 8); \
- v |= (pcl720_inb(pcl720_data_16_23(b)) << 16); \
- v |= (pcl720_inb(pcl720_data_24_31(b)) << 24); \
- v; \
- })
- #define pcl720_output(Base,Value) \
- ({ register unsigned int b = Base, v = Value; \
- \
- pcl720_outb(pcl720_data_0_7(b), v); \
- pcl720_outb(pcl720_data_8_15(b), v << 8); \
- pcl720_outb(pcl720_data_16_23(b), v << 16); \
- pcl720_outb(pcl720_data_24_31(b), v << 24); \
- v; \
- })
- #endif /*_PCL720_DEFINED*/