/* * include/asm-v850/v850e_timer_d.h -- `Timer D' component often used * with the V850E cpu core * * Copyright (C) 2001,02,03 NEC Electronics Corporation * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org> * * This file is subject to the terms and conditions of the GNU General * Public License. See the file COPYING in the main directory of this * archive for more details. * * Written by Miles Bader <miles@gnu.org> */ #ifndef __V850_V850E_TIMER_D_H__ #define __V850_V850E_TIMER_D_H__ #include <asm/types.h> #include <asm/machdep.h> /* Pick up chip-specific defs. */ /* Timer D (16-bit interval timers). */ /* Count registers for timer D. */ #define V850E_TIMER_D_TMD_ADDR(n) (V850E_TIMER_D_TMD_BASE_ADDR + 0x10 * (n)) #define V850E_TIMER_D_TMD(n) (*(volatile u16 *)V850E_TIMER_D_TMD_ADDR(n)) /* Count compare registers for timer D. */ #define V850E_TIMER_D_CMD_ADDR(n) (V850E_TIMER_D_CMD_BASE_ADDR + 0x10 * (n)) #define V850E_TIMER_D_CMD(n) (*(volatile u16 *)V850E_TIMER_D_CMD_ADDR(n)) /* Control registers for timer D. */ #define V850E_TIMER_D_TMCD_ADDR(n) (V850E_TIMER_D_TMCD_BASE_ADDR + 0x10 * (n)) #define V850E_TIMER_D_TMCD(n) (*(volatile u8 *)V850E_TIMER_D_TMCD_ADDR(n)) /* Control bits for timer D. */ #define V850E_TIMER_D_TMCD_CE 0x2 /* count enable */ #define V850E_TIMER_D_TMCD_CAE 0x1 /* clock action enable */ /* Clock divider setting (log2). */ #define V850E_TIMER_D_TMCD_CS(divlog2) (((divlog2) - V850E_TIMER_D_TMCD_CS_MIN) << 4) /* Minimum clock divider setting (log2). */ #ifndef V850E_TIMER_D_TMCD_CS_MIN /* Can be overridden by mach-specific hdrs */ #define V850E_TIMER_D_TMCD_CS_MIN 2 /* Default is correct for the v850e/ma1 */ #endif /* Maximum clock divider setting (log2). */ #define V850E_TIMER_D_TMCD_CS_MAX (V850E_TIMER_D_TMCD_CS_MIN + 7) /* Return the clock-divider (log2) of timer D unit N. */ #define V850E_TIMER_D_DIVLOG2(n) \ (((V850E_TIMER_D_TMCD(n) >> 4) & 0x7) + V850E_TIMER_D_TMCD_CS_MIN) #ifndef __ASSEMBLY__ /* Start interval timer TIMER (0-3). The timer will issue the corresponding INTCMD interrupt RATE times per second. This function does not enable the interrupt. */ extern void v850e_timer_d_configure (unsigned timer, unsigned rate); #endif /* !__ASSEMBLY__ */ #endif /* __V850_V850E_TIMER_D_H__ */