210 lines
5.8 KiB
C
210 lines
5.8 KiB
C
/*
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* include/asm/bf5xx_timers.h
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*
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* This file contains the major Data structures and constants
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* used for General Purpose Timer Implementation in BF5xx
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*
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* Copyright (C) 2005 John DeHority
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* Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
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*
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*/
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#ifndef _BLACKFIN_TIMERS_H_
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#define _BLACKFIN_TIMERS_H_
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#undef MAX_BLACKFIN_GPTIMERS
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/*
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* BF537: 8 timers:
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*/
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#if defined(CONFIG_BF537)
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# define MAX_BLACKFIN_GPTIMERS 8
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# define TIMER0_GROUP_REG TIMER_ENABLE
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#endif
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/*
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* BF561: 12 timers:
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*/
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#if defined(CONFIG_BF561)
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# define MAX_BLACKFIN_GPTIMERS 12
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# define TIMER0_GROUP_REG TMRS8_ENABLE
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# define TIMER8_GROUP_REG TMRS4_ENABLE
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#endif
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/*
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* All others: 3 timers:
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*/
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#if !defined(MAX_BLACKFIN_GPTIMERS)
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# define MAX_BLACKFIN_GPTIMERS 3
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# define TIMER0_GROUP_REG TIMER_ENABLE
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#endif
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#define BLACKFIN_GPTIMER_IDMASK ((1UL << MAX_BLACKFIN_GPTIMERS) - 1)
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#define BFIN_TIMER_OCTET(x) ((x) >> 3)
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/* used in masks for timer_enable() and timer_disable() */
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#define TIMER0bit 0x0001 /* 0001b */
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#define TIMER1bit 0x0002 /* 0010b */
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#define TIMER2bit 0x0004 /* 0100b */
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#if (MAX_BLACKFIN_GPTIMERS > 3)
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# define TIMER3bit 0x0008
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# define TIMER4bit 0x0010
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# define TIMER5bit 0x0020
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# define TIMER6bit 0x0040
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# define TIMER7bit 0x0080
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#endif
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#if (MAX_BLACKFIN_GPTIMERS > 8)
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# define TIMER8bit 0x0100
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# define TIMER9bit 0x0200
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# define TIMER10bit 0x0400
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# define TIMER11bit 0x0800
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#endif
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#define TIMER0_id 0
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#define TIMER1_id 1
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#define TIMER2_id 2
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#if (MAX_BLACKFIN_GPTIMERS > 3)
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# define TIMER3_id 3
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# define TIMER4_id 4
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# define TIMER5_id 5
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# define TIMER6_id 6
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# define TIMER7_id 7
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#endif
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#if (MAX_BLACKFIN_GPTIMERS > 8)
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# define TIMER8_id 8
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# define TIMER9_id 9
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# define TIMER10_id 10
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# define TIMER11_id 11
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#endif
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/* associated timers for ppi framesync: */
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#if defined(CONFIG_BF561)
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# define FS0_1_TIMER_ID TIMER8_id
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# define FS0_2_TIMER_ID TIMER9_id
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# define FS1_1_TIMER_ID TIMER10_id
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# define FS1_2_TIMER_ID TIMER11_id
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# define FS0_1_TIMER_BIT TIMER8bit
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# define FS0_2_TIMER_BIT TIMER9bit
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# define FS1_1_TIMER_BIT TIMER10bit
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# define FS1_2_TIMER_BIT TIMER11bit
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# undef FS1_TIMER_ID
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# undef FS2_TIMER_ID
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# undef FS1_TIMER_BIT
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# undef FS2_TIMER_BIT
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#else
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# define FS1_TIMER_ID TIMER0_id
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# define FS2_TIMER_ID TIMER1_id
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# define FS1_TIMER_BIT TIMER0bit
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# define FS2_TIMER_BIT TIMER1bit
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#endif
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/*
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** Timer Configuration Register Bits
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*/
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#define TIMER_ERR 0xC000
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#define TIMER_ERR_OVFL 0x4000
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#define TIMER_ERR_PROG_PER 0x8000
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#define TIMER_ERR_PROG_PW 0xC000
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#define TIMER_EMU_RUN 0x0200
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#define TIMER_TOGGLE_HI 0x0100
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#define TIMER_CLK_SEL 0x0080
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#define TIMER_OUT_DIS 0x0040
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#define TIMER_TIN_SEL 0x0020
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#define TIMER_IRQ_ENA 0x0010
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#define TIMER_PERIOD_CNT 0x0008
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#define TIMER_PULSE_HI 0x0004
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#define TIMER_MODE 0x0003
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#define TIMER_MODE_PWM 0x0001
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#define TIMER_MODE_WDTH 0x0002
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#define TIMER_MODE_EXT_CLK 0x0003
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/*
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** Timer Status Register Bits
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*/
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#define TIMER_STATUS_TIMIL0 0x0001
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#define TIMER_STATUS_TIMIL1 0x0002
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#define TIMER_STATUS_TIMIL2 0x0004
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#if (MAX_BLACKFIN_GPTIMERS > 3)
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# define TIMER_STATUS_TIMIL3 0x00000008
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# define TIMER_STATUS_TIMIL4 0x00010000
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# define TIMER_STATUS_TIMIL5 0x00020000
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# define TIMER_STATUS_TIMIL6 0x00040000
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# define TIMER_STATUS_TIMIL7 0x00080000
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# if (MAX_BLACKFIN_GPTIMERS > 8)
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# define TIMER_STATUS_TIMIL8 0x0001
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# define TIMER_STATUS_TIMIL9 0x0002
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# define TIMER_STATUS_TIMIL10 0x0004
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# define TIMER_STATUS_TIMIL11 0x0008
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# endif
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# define TIMER_STATUS_INTR 0x000F000F
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#else
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# define TIMER_STATUS_INTR 0x0007 /* any timer interrupt */
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#endif
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#define TIMER_STATUS_TOVF0 0x0010 /* timer 0 overflow error */
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#define TIMER_STATUS_TOVF1 0x0020
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#define TIMER_STATUS_TOVF2 0x0040
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#if (MAX_BLACKFIN_GPTIMERS > 3)
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# define TIMER_STATUS_TOVF3 0x00000080
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# define TIMER_STATUS_TOVF4 0x00100000
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# define TIMER_STATUS_TOVF5 0x00200000
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# define TIMER_STATUS_TOVF6 0x00400000
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# define TIMER_STATUS_TOVF7 0x00800000
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# if (MAX_BLACKFIN_GPTIMERS > 8)
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# define TIMER_STATUS_TOVF8 0x0010
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# define TIMER_STATUS_TOVF9 0x0020
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# define TIMER_STATUS_TOVF10 0x0040
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# define TIMER_STATUS_TOVF11 0x0080
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# endif
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# define TIMER_STATUS_OFLOW 0x00F000F0
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#else
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# define TIMER_STATUS_OFLOW 0x0070 /* any timer overflow */
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#endif
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/*
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** Timer Slave Enable Status : write 1 to clear
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*/
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#define TIMER_STATUS_TRUN0 0x1000
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#define TIMER_STATUS_TRUN1 0x2000
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#define TIMER_STATUS_TRUN2 0x4000
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#if (MAX_BLACKFIN_GPTIMERS > 3)
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# define TIMER_STATUS_TRUN3 0x00008000
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# define TIMER_STATUS_TRUN4 0x10000000
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# define TIMER_STATUS_TRUN5 0x20000000
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# define TIMER_STATUS_TRUN6 0x40000000
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# define TIMER_STATUS_TRUN7 0x80000000
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# define TIMER_STATUS_TRUN 0xF000F000
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# if (MAX_BLACKFIN_GPTIMERS > 8)
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# define TIMER_STATUS_TRUN8 0x1000
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# define TIMER_STATUS_TRUN9 0x2000
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# define TIMER_STATUS_TRUN10 0x4000
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# define TIMER_STATUS_TRUN11 0x8000
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# endif
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#else
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# define TIMER_STATUS_TRUN 0x7000
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#endif
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/*******************************************************************************
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* GP_TIMER API's
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*******************************************************************************/
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void set_gptimer_pwidth (int timer_id, int width);
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int get_gptimer_pwidth (int timer_id);
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void set_gptimer_period (int timer_id, int period);
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int get_gptimer_period (int timer_id);
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int get_gptimer_count (int timer_id);
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short get_gptimer_intr (int timer_id);
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void set_gptimer_config (int timer_id, short config);
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short get_gptimer_config (int timer_id);
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void set_gptimer_pulse_hi (int timer_id);
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void clear_gptimer_pulse_hi(int timer_id);
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void enable_gptimers (short mask);
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void disable_gptimers (short mask);
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short get_enabled_timers (void);
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int get_gptimer_status (int octet);
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void set_gptimer_status (int octet, int value);
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#endif
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