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/*
* gptimers.h - Blackfin General Purpose Timer structs/defines/prototypes
*
* Copyright (c) 2005-2008 Analog Devices Inc.
* Copyright (C) 2005 John DeHority
* Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
*
* Licensed under the GPL-2.
*/
#ifndef _BLACKFIN_TIMERS_H_
#define _BLACKFIN_TIMERS_H_
#include <linux/types.h>
#include <asm/blackfin.h>
/*
* BF537/BF527: 8 timers:
*/
#if defined(BF527_FAMILY) || defined(BF537_FAMILY)
# define MAX_BLACKFIN_GPTIMERS 8
# define TIMER0_GROUP_REG TIMER_ENABLE
#endif
/*
* BF561: 12 timers:
*/
#if defined(CONFIG_BF561)
# define MAX_BLACKFIN_GPTIMERS 12
# define TIMER0_GROUP_REG TMRS8_ENABLE
# define TIMER8_GROUP_REG TMRS4_ENABLE
#endif
/*
* All others: 3 timers:
*/
#if !defined(MAX_BLACKFIN_GPTIMERS)
# define MAX_BLACKFIN_GPTIMERS 3
# define TIMER0_GROUP_REG TIMER_ENABLE
#endif
#define BLACKFIN_GPTIMER_IDMASK ((1UL << MAX_BLACKFIN_GPTIMERS) - 1)
#define BFIN_TIMER_OCTET(x) ((x) >> 3)
/* used in masks for timer_enable() and timer_disable() */
#define TIMER0bit 0x0001 /* 0001b */
#define TIMER1bit 0x0002 /* 0010b */
#define TIMER2bit 0x0004 /* 0100b */
#if (MAX_BLACKFIN_GPTIMERS > 3)
# define TIMER3bit 0x0008
# define TIMER4bit 0x0010
# define TIMER5bit 0x0020
# define TIMER6bit 0x0040
# define TIMER7bit 0x0080
#endif
#if (MAX_BLACKFIN_GPTIMERS > 8)
# define TIMER8bit 0x0100
# define TIMER9bit 0x0200
# define TIMER10bit 0x0400
# define TIMER11bit 0x0800
#endif
#define TIMER0_id 0
#define TIMER1_id 1
#define TIMER2_id 2
#if (MAX_BLACKFIN_GPTIMERS > 3)
# define TIMER3_id 3
# define TIMER4_id 4
# define TIMER5_id 5
# define TIMER6_id 6
# define TIMER7_id 7
#endif
#if (MAX_BLACKFIN_GPTIMERS > 8)
# define TIMER8_id 8
# define TIMER9_id 9
# define TIMER10_id 10
# define TIMER11_id 11
#endif
/* associated timers for ppi framesync: */
#if defined(CONFIG_BF561)
# define FS0_1_TIMER_ID TIMER8_id
# define FS0_2_TIMER_ID TIMER9_id
# define FS1_1_TIMER_ID TIMER10_id
# define FS1_2_TIMER_ID TIMER11_id
# define FS0_1_TIMER_BIT TIMER8bit
# define FS0_2_TIMER_BIT TIMER9bit
# define FS1_1_TIMER_BIT TIMER10bit
# define FS1_2_TIMER_BIT TIMER11bit
# undef FS1_TIMER_ID
# undef FS2_TIMER_ID
# undef FS1_TIMER_BIT
# undef FS2_TIMER_BIT
#else
# define FS1_TIMER_ID TIMER0_id
# define FS2_TIMER_ID TIMER1_id
# define FS1_TIMER_BIT TIMER0bit
# define FS2_TIMER_BIT TIMER1bit
#endif
/*
* Timer Configuration Register Bits
*/
#define TIMER_ERR 0xC000
#define TIMER_ERR_OVFL 0x4000
#define TIMER_ERR_PROG_PER 0x8000
#define TIMER_ERR_PROG_PW 0xC000
#define TIMER_EMU_RUN 0x0200
#define TIMER_TOGGLE_HI 0x0100
#define TIMER_CLK_SEL 0x0080
#define TIMER_OUT_DIS 0x0040
#define TIMER_TIN_SEL 0x0020
#define TIMER_IRQ_ENA 0x0010
#define TIMER_PERIOD_CNT 0x0008
#define TIMER_PULSE_HI 0x0004
#define TIMER_MODE 0x0003
#define TIMER_MODE_PWM 0x0001
#define TIMER_MODE_WDTH 0x0002
#define TIMER_MODE_EXT_CLK 0x0003
/*
* Timer Status Register Bits
*/
#define TIMER_STATUS_TIMIL0 0x0001
#define TIMER_STATUS_TIMIL1 0x0002
#define TIMER_STATUS_TIMIL2 0x0004
#if (MAX_BLACKFIN_GPTIMERS > 3)
# define TIMER_STATUS_TIMIL3 0x00000008
# define TIMER_STATUS_TIMIL4 0x00010000
# define TIMER_STATUS_TIMIL5 0x00020000
# define TIMER_STATUS_TIMIL6 0x00040000
# define TIMER_STATUS_TIMIL7 0x00080000
# if (MAX_BLACKFIN_GPTIMERS > 8)
# define TIMER_STATUS_TIMIL8 0x0001
# define TIMER_STATUS_TIMIL9 0x0002
# define TIMER_STATUS_TIMIL10 0x0004
# define TIMER_STATUS_TIMIL11 0x0008
# endif
# define TIMER_STATUS_INTR 0x000F000F
#else
# define TIMER_STATUS_INTR 0x0007 /* any timer interrupt */
#endif
#define TIMER_STATUS_TOVF0 0x0010 /* timer 0 overflow error */
#define TIMER_STATUS_TOVF1 0x0020
#define TIMER_STATUS_TOVF2 0x0040
#if (MAX_BLACKFIN_GPTIMERS > 3)
# define TIMER_STATUS_TOVF3 0x00000080
# define TIMER_STATUS_TOVF4 0x00100000
# define TIMER_STATUS_TOVF5 0x00200000
# define TIMER_STATUS_TOVF6 0x00400000
# define TIMER_STATUS_TOVF7 0x00800000
# if (MAX_BLACKFIN_GPTIMERS > 8)
# define TIMER_STATUS_TOVF8 0x0010
# define TIMER_STATUS_TOVF9 0x0020
# define TIMER_STATUS_TOVF10 0x0040
# define TIMER_STATUS_TOVF11 0x0080
# endif
# define TIMER_STATUS_OFLOW 0x00F000F0
#else
# define TIMER_STATUS_OFLOW 0x0070 /* any timer overflow */
#endif
/*
* Timer Slave Enable Status : write 1 to clear
*/
#define TIMER_STATUS_TRUN0 0x1000
#define TIMER_STATUS_TRUN1 0x2000
#define TIMER_STATUS_TRUN2 0x4000
#if (MAX_BLACKFIN_GPTIMERS > 3)
# define TIMER_STATUS_TRUN3 0x00008000
# define TIMER_STATUS_TRUN4 0x10000000
# define TIMER_STATUS_TRUN5 0x20000000
# define TIMER_STATUS_TRUN6 0x40000000
# define TIMER_STATUS_TRUN7 0x80000000
# define TIMER_STATUS_TRUN 0xF000F000
# if (MAX_BLACKFIN_GPTIMERS > 8)
# define TIMER_STATUS_TRUN8 0x1000
# define TIMER_STATUS_TRUN9 0x2000
# define TIMER_STATUS_TRUN10 0x4000
# define TIMER_STATUS_TRUN11 0x8000
# endif
#else
# define TIMER_STATUS_TRUN 0x7000
#endif
/* The actual gptimer API */
void set_gptimer_pwidth (int timer_id, uint32_t width);
uint32_t get_gptimer_pwidth (int timer_id);
void set_gptimer_period (int timer_id, uint32_t period);
uint32_t get_gptimer_period (int timer_id);
uint32_t get_gptimer_count (int timer_id);
uint16_t get_gptimer_intr (int timer_id);
void clear_gptimer_intr (int timer_id);
uint16_t get_gptimer_over (int timer_id);
void clear_gptimer_over (int timer_id);
void set_gptimer_config (int timer_id, uint16_t config);
uint16_t get_gptimer_config (int timer_id);
void set_gptimer_pulse_hi (int timer_id);
void clear_gptimer_pulse_hi(int timer_id);
void enable_gptimers (uint16_t mask);
void disable_gptimers (uint16_t mask);
uint16_t get_enabled_gptimers (void);
uint32_t get_gptimer_status (int group);
void set_gptimer_status (int group, uint32_t value);
#endif
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