release/src-rt-6.x/linux/linux-2.6/include/asm-blackfin/bf5xx_timers.h

   1 /*
   2  * include/asm/bf5xx_timers.h
   3  *
   4  * This file contains the major Data structures and constants
   5  * used for General Purpose Timer Implementation in BF5xx
   6  *
   7  * Copyright (C) 2005 John DeHority
   8  * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
   9  *
  10  */
  11
  12 #ifndef _BLACKFIN_TIMERS_H_
  13 #define _BLACKFIN_TIMERS_H_
  14
  15 #undef MAX_BLACKFIN_GPTIMERS
  16 /*
  17  * BF537: 8 timers:
  18  */
  19 #if defined(CONFIG_BF537)
  20 #  define MAX_BLACKFIN_GPTIMERS 8
  21 #  define TIMER0_GROUP_REG     TIMER_ENABLE
  22 #endif
  23 /*
  24  * BF561: 12 timers:
  25  */
  26 #if defined(CONFIG_BF561)
  27 #  define MAX_BLACKFIN_GPTIMERS 12
  28 #  define TIMER0_GROUP_REG     TMRS8_ENABLE
  29 #  define TIMER8_GROUP_REG     TMRS4_ENABLE
  30 #endif
  31 /*
  32  * All others: 3 timers:
  33  */
  34 #if !defined(MAX_BLACKFIN_GPTIMERS)
  35 #  define MAX_BLACKFIN_GPTIMERS 3
  36 #  define TIMER0_GROUP_REG     TIMER_ENABLE
  37 #endif
  38
  39 #define BLACKFIN_GPTIMER_IDMASK ((1UL << MAX_BLACKFIN_GPTIMERS) - 1)
  40 #define BFIN_TIMER_OCTET(x) ((x) >> 3)
  41
  42 /* used in masks for timer_enable() and timer_disable() */
  43 #define TIMER0bit  0x0001  /*  0001b */
  44 #define TIMER1bit  0x0002  /*  0010b */
  45 #define TIMER2bit  0x0004  /*  0100b */
  46
  47 #if (MAX_BLACKFIN_GPTIMERS > 3)
  48 #  define TIMER3bit  0x0008
  49 #  define TIMER4bit  0x0010
  50 #  define TIMER5bit  0x0020
  51 #  define TIMER6bit  0x0040
  52 #  define TIMER7bit  0x0080
  53 #endif
  54
  55 #if (MAX_BLACKFIN_GPTIMERS > 8)
  56 #  define TIMER8bit  0x0100
  57 #  define TIMER9bit  0x0200
  58 #  define TIMER10bit 0x0400
  59 #  define TIMER11bit 0x0800
  60 #endif
  61
  62 #define TIMER0_id   0
  63 #define TIMER1_id   1
  64 #define TIMER2_id   2
  65
  66 #if (MAX_BLACKFIN_GPTIMERS > 3)
  67 #  define TIMER3_id   3
  68 #  define TIMER4_id   4
  69 #  define TIMER5_id   5
  70 #  define TIMER6_id   6
  71 #  define TIMER7_id   7
  72 #endif
  73
  74 #if (MAX_BLACKFIN_GPTIMERS > 8)
  75 #  define TIMER8_id   8
  76 #  define TIMER9_id   9
  77 #  define TIMER10_id 10
  78 #  define TIMER11_id 11
  79 #endif
  80
  81 /* associated timers for ppi framesync: */
  82
  83 #if defined(CONFIG_BF561)
  84 #  define FS0_1_TIMER_ID   TIMER8_id
  85 #  define FS0_2_TIMER_ID   TIMER9_id
  86 #  define FS1_1_TIMER_ID   TIMER10_id
  87 #  define FS1_2_TIMER_ID   TIMER11_id
  88 #  define FS0_1_TIMER_BIT  TIMER8bit
  89 #  define FS0_2_TIMER_BIT  TIMER9bit
  90 #  define FS1_1_TIMER_BIT  TIMER10bit
  91 #  define FS1_2_TIMER_BIT  TIMER11bit
  92 #  undef FS1_TIMER_ID
  93 #  undef FS2_TIMER_ID
  94 #  undef FS1_TIMER_BIT
  95 #  undef FS2_TIMER_BIT
  96 #else
  97 #  define FS1_TIMER_ID  TIMER0_id
  98 #  define FS2_TIMER_ID  TIMER1_id
  99 #  define FS1_TIMER_BIT TIMER0bit
 100 #  define FS2_TIMER_BIT TIMER1bit
 101 #endif
 102
 103 /*
 104 ** Timer Configuration Register Bits
 105 */
 106 #define TIMER_ERR           0xC000
 107 #define TIMER_ERR_OVFL      0x4000
 108 #define TIMER_ERR_PROG_PER  0x8000
 109 #define TIMER_ERR_PROG_PW   0xC000
 110 #define TIMER_EMU_RUN       0x0200
 111 #define TIMER_TOGGLE_HI     0x0100
 112 #define TIMER_CLK_SEL       0x0080
 113 #define TIMER_OUT_DIS       0x0040
 114 #define TIMER_TIN_SEL       0x0020
 115 #define TIMER_IRQ_ENA       0x0010
 116 #define TIMER_PERIOD_CNT    0x0008
 117 #define TIMER_PULSE_HI      0x0004
 118 #define TIMER_MODE          0x0003
 119 #define TIMER_MODE_PWM      0x0001
 120 #define TIMER_MODE_WDTH     0x0002
 121 #define TIMER_MODE_EXT_CLK  0x0003
 122
 123 /*
 124 ** Timer Status Register Bits
 125 */
 126 #define TIMER_STATUS_TIMIL0 0x0001
 127 #define TIMER_STATUS_TIMIL1 0x0002
 128 #define TIMER_STATUS_TIMIL2 0x0004
 129 #if (MAX_BLACKFIN_GPTIMERS > 3)
 130 #  define TIMER_STATUS_TIMIL3 0x00000008
 131 #  define TIMER_STATUS_TIMIL4 0x00010000
 132 #  define TIMER_STATUS_TIMIL5 0x00020000
 133 #  define TIMER_STATUS_TIMIL6 0x00040000
 134 #  define TIMER_STATUS_TIMIL7 0x00080000
 135 #  if (MAX_BLACKFIN_GPTIMERS > 8)
 136 #    define TIMER_STATUS_TIMIL8  0x0001
 137 #    define TIMER_STATUS_TIMIL9  0x0002
 138 #    define TIMER_STATUS_TIMIL10 0x0004
 139 #    define TIMER_STATUS_TIMIL11 0x0008
 140 #  endif
 141 #  define TIMER_STATUS_INTR   0x000F000F
 142 #else
 143 #  define TIMER_STATUS_INTR   0x0007    /* any timer interrupt */
 144 #endif
 145
 146 #define TIMER_STATUS_TOVF0  0x0010      /* timer 0 overflow error */
 147 #define TIMER_STATUS_TOVF1  0x0020
 148 #define TIMER_STATUS_TOVF2  0x0040
 149 #if (MAX_BLACKFIN_GPTIMERS > 3)
 150 #  define TIMER_STATUS_TOVF3  0x00000080
 151 #  define TIMER_STATUS_TOVF4  0x00100000
 152 #  define TIMER_STATUS_TOVF5  0x00200000
 153 #  define TIMER_STATUS_TOVF6  0x00400000
 154 #  define TIMER_STATUS_TOVF7  0x00800000
 155 #  if (MAX_BLACKFIN_GPTIMERS > 8)
 156 #    define TIMER_STATUS_TOVF8   0x0010
 157 #    define TIMER_STATUS_TOVF9   0x0020
 158 #    define TIMER_STATUS_TOVF10  0x0040
 159 #    define TIMER_STATUS_TOVF11  0x0080
 160 #  endif
 161 #  define TIMER_STATUS_OFLOW  0x00F000F0
 162 #else
 163 #  define TIMER_STATUS_OFLOW  0x0070    /* any timer overflow */
 164 #endif
 165
 166 /*
 167 ** Timer Slave Enable Status : write 1 to clear
 168 */
 169 #define TIMER_STATUS_TRUN0  0x1000
 170 #define TIMER_STATUS_TRUN1  0x2000
 171 #define TIMER_STATUS_TRUN2  0x4000
 172 #if (MAX_BLACKFIN_GPTIMERS > 3)
 173 #  define TIMER_STATUS_TRUN3  0x00008000
 174 #  define TIMER_STATUS_TRUN4  0x10000000
 175 #  define TIMER_STATUS_TRUN5  0x20000000
 176 #  define TIMER_STATUS_TRUN6  0x40000000
 177 #  define TIMER_STATUS_TRUN7  0x80000000
 178 #  define TIMER_STATUS_TRUN   0xF000F000
 179 #  if (MAX_BLACKFIN_GPTIMERS > 8)
 180 #    define TIMER_STATUS_TRUN8  0x1000
 181 #    define TIMER_STATUS_TRUN9  0x2000
 182 #    define TIMER_STATUS_TRUN10 0x4000
 183 #    define TIMER_STATUS_TRUN11 0x8000
 184 #  endif
 185 #else
 186 #  define TIMER_STATUS_TRUN   0x7000
 187 #endif
 188
 189 /*******************************************************************************
 190 *       GP_TIMER API's
 191 *******************************************************************************/
 192
 193 void  set_gptimer_pwidth    (int timer_id, int width);
 194 int   get_gptimer_pwidth    (int timer_id);
 195 void  set_gptimer_period    (int timer_id, int period);
 196 int   get_gptimer_period    (int timer_id);
 197 int   get_gptimer_count     (int timer_id);
 198 short get_gptimer_intr      (int timer_id);
 199 void  set_gptimer_config    (int timer_id, short config);
 200 short get_gptimer_config    (int timer_id);
 201 void  set_gptimer_pulse_hi  (int timer_id);
 202 void  clear_gptimer_pulse_hi(int timer_id);
 203 void  enable_gptimers       (short mask);
 204 void  disable_gptimers      (short mask);
 205 short get_enabled_timers    (void);
 206 int   get_gptimer_status    (int octet);
 207 void  set_gptimer_status    (int octet, int value);
 208
 209 #endif