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Diffstat (limited to 'include/asm-blackfin/gptimers.h')
| -rw-r--r-- | include/asm-blackfin/gptimers.h | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/include/asm-blackfin/gptimers.h b/include/asm-blackfin/gptimers.h new file mode 100644 index 0000000..c97ab03 --- /dev/null +++ b/include/asm-blackfin/gptimers.h @@ -0,0 +1,210 @@ +/* + * include/asm/bf5xx_timers.h + * + * This file contains the major Data structures and constants + * used for General Purpose Timer Implementation in BF5xx + * + * Copyright (C) 2005 John DeHority + * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de) + * + */ + +#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); +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 |