include/asm-blackfin/gptimers.h

   1 /*
   2 <<<<<<< HEAD:include/asm-blackfin/gptimers.h
   3  * include/asm/bf5xx_timers.h
   4  *
   5  * This file contains the major Data structures and constants
   6  * used for General Purpose Timer Implementation in BF5xx
   7 =======
   8  * gptimers.h - Blackfin General Purpose Timer structs/defines/prototypes
   9 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:include/asm-blackfin/gptimers.h
  10  *
  11 <<<<<<< HEAD:include/asm-blackfin/gptimers.h
  12 =======
  13  * Copyright (c) 2005-2008 Analog Devices Inc.
  14 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:include/asm-blackfin/gptimers.h
  15  * Copyright (C) 2005 John DeHority
  16  * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
  17  *
  18 <<<<<<< HEAD:include/asm-blackfin/gptimers.h
  19 =======
  20  * Licensed under the GPL-2.
  21 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:include/asm-blackfin/gptimers.h
  22  */
  23
  24 #ifndef _BLACKFIN_TIMERS_H_
  25 #define _BLACKFIN_TIMERS_H_
  26
  27 #include <linux/types.h>
  28 #include <asm/blackfin.h>
  29
  30 /*
  31  * BF537/BF527: 8 timers:
  32  */
  33 #if defined(BF527_FAMILY) || defined(BF537_FAMILY)
  34 # define MAX_BLACKFIN_GPTIMERS 8
  35 # define TIMER0_GROUP_REG      TIMER_ENABLE
  36 #endif
  37 /*
  38  * BF561: 12 timers:
  39  */
  40 #if defined(CONFIG_BF561)
  41 # define MAX_BLACKFIN_GPTIMERS 12
  42 # define TIMER0_GROUP_REG      TMRS8_ENABLE
  43 # define TIMER8_GROUP_REG      TMRS4_ENABLE
  44 #endif
  45 /*
  46  * All others: 3 timers:
  47  */
  48 #if !defined(MAX_BLACKFIN_GPTIMERS)
  49 # define MAX_BLACKFIN_GPTIMERS 3
  50 # define TIMER0_GROUP_REG      TIMER_ENABLE
  51 #endif
  52
  53 #define BLACKFIN_GPTIMER_IDMASK ((1UL << MAX_BLACKFIN_GPTIMERS) - 1)
  54 #define BFIN_TIMER_OCTET(x) ((x) >> 3)
  55
  56 /* used in masks for timer_enable() and timer_disable() */
  57 #define TIMER0bit  0x0001  /*  0001b */
  58 #define TIMER1bit  0x0002  /*  0010b */
  59 #define TIMER2bit  0x0004  /*  0100b */
  60
  61 #if (MAX_BLACKFIN_GPTIMERS > 3)
  62 # define TIMER3bit  0x0008
  63 # define TIMER4bit  0x0010
  64 # define TIMER5bit  0x0020
  65 # define TIMER6bit  0x0040
  66 # define TIMER7bit  0x0080
  67 #endif
  68
  69 #if (MAX_BLACKFIN_GPTIMERS > 8)
  70 # define TIMER8bit  0x0100
  71 # define TIMER9bit  0x0200
  72 # define TIMER10bit 0x0400
  73 # define TIMER11bit 0x0800
  74 #endif
  75
  76 #define TIMER0_id   0
  77 #define TIMER1_id   1
  78 #define TIMER2_id   2
  79
  80 #if (MAX_BLACKFIN_GPTIMERS > 3)
  81 # define TIMER3_id   3
  82 # define TIMER4_id   4
  83 # define TIMER5_id   5
  84 # define TIMER6_id   6
  85 # define TIMER7_id   7
  86 #endif
  87
  88 #if (MAX_BLACKFIN_GPTIMERS > 8)
  89 # define TIMER8_id   8
  90 # define TIMER9_id   9
  91 # define TIMER10_id 10
  92 # define TIMER11_id 11
  93 #endif
  94
  95 /* associated timers for ppi framesync: */
  96
  97 #if defined(CONFIG_BF561)
  98 # define FS0_1_TIMER_ID   TIMER8_id
  99 # define FS0_2_TIMER_ID   TIMER9_id
 100 # define FS1_1_TIMER_ID   TIMER10_id
 101 # define FS1_2_TIMER_ID   TIMER11_id
 102 # define FS0_1_TIMER_BIT  TIMER8bit
 103 # define FS0_2_TIMER_BIT  TIMER9bit
 104 # define FS1_1_TIMER_BIT  TIMER10bit
 105 # define FS1_2_TIMER_BIT  TIMER11bit
 106 # undef FS1_TIMER_ID
 107 # undef FS2_TIMER_ID
 108 # undef FS1_TIMER_BIT
 109 # undef FS2_TIMER_BIT
 110 #else
 111 # define FS1_TIMER_ID  TIMER0_id
 112 # define FS2_TIMER_ID  TIMER1_id
 113 # define FS1_TIMER_BIT TIMER0bit
 114 # define FS2_TIMER_BIT TIMER1bit
 115 #endif
 116
 117 /*
 118  * Timer Configuration Register Bits
 119  */
 120 #define TIMER_ERR           0xC000
 121 #define TIMER_ERR_OVFL      0x4000
 122 #define TIMER_ERR_PROG_PER  0x8000
 123 #define TIMER_ERR_PROG_PW   0xC000
 124 #define TIMER_EMU_RUN       0x0200
 125 #define TIMER_TOGGLE_HI     0x0100
 126 #define TIMER_CLK_SEL       0x0080
 127 #define TIMER_OUT_DIS       0x0040
 128 #define TIMER_TIN_SEL       0x0020
 129 #define TIMER_IRQ_ENA       0x0010
 130 #define TIMER_PERIOD_CNT    0x0008
 131 #define TIMER_PULSE_HI      0x0004
 132 #define TIMER_MODE          0x0003
 133 #define TIMER_MODE_PWM      0x0001
 134 #define TIMER_MODE_WDTH     0x0002
 135 #define TIMER_MODE_EXT_CLK  0x0003
 136
 137 /*
 138  * Timer Status Register Bits
 139  */
 140 #define TIMER_STATUS_TIMIL0 0x0001
 141 #define TIMER_STATUS_TIMIL1 0x0002
 142 #define TIMER_STATUS_TIMIL2 0x0004
 143 #if (MAX_BLACKFIN_GPTIMERS > 3)
 144 # define TIMER_STATUS_TIMIL3 0x00000008
 145 # define TIMER_STATUS_TIMIL4 0x00010000
 146 # define TIMER_STATUS_TIMIL5 0x00020000
 147 # define TIMER_STATUS_TIMIL6 0x00040000
 148 # define TIMER_STATUS_TIMIL7 0x00080000
 149 # if (MAX_BLACKFIN_GPTIMERS > 8)
 150 #  define TIMER_STATUS_TIMIL8  0x0001
 151 #  define TIMER_STATUS_TIMIL9  0x0002
 152 #  define TIMER_STATUS_TIMIL10 0x0004
 153 #  define TIMER_STATUS_TIMIL11 0x0008
 154 # endif
 155 # define TIMER_STATUS_INTR   0x000F000F
 156 #else
 157 # define TIMER_STATUS_INTR   0x0007     /* any timer interrupt */
 158 #endif
 159
 160 #define TIMER_STATUS_TOVF0  0x0010      /* timer 0 overflow error */
 161 #define TIMER_STATUS_TOVF1  0x0020
 162 #define TIMER_STATUS_TOVF2  0x0040
 163 #if (MAX_BLACKFIN_GPTIMERS > 3)
 164 # define TIMER_STATUS_TOVF3  0x00000080
 165 # define TIMER_STATUS_TOVF4  0x00100000
 166 # define TIMER_STATUS_TOVF5  0x00200000
 167 # define TIMER_STATUS_TOVF6  0x00400000
 168 # define TIMER_STATUS_TOVF7  0x00800000
 169 # if (MAX_BLACKFIN_GPTIMERS > 8)
 170 #  define TIMER_STATUS_TOVF8   0x0010
 171 #  define TIMER_STATUS_TOVF9   0x0020
 172 #  define TIMER_STATUS_TOVF10  0x0040
 173 #  define TIMER_STATUS_TOVF11  0x0080
 174 # endif
 175 # define TIMER_STATUS_OFLOW  0x00F000F0
 176 #else
 177 # define TIMER_STATUS_OFLOW  0x0070     /* any timer overflow */
 178 #endif
 179
 180 /*
 181  * Timer Slave Enable Status : write 1 to clear
 182  */
 183 #define TIMER_STATUS_TRUN0  0x1000
 184 #define TIMER_STATUS_TRUN1  0x2000
 185 #define TIMER_STATUS_TRUN2  0x4000
 186 #if (MAX_BLACKFIN_GPTIMERS > 3)
 187 # define TIMER_STATUS_TRUN3  0x00008000
 188 # define TIMER_STATUS_TRUN4  0x10000000
 189 # define TIMER_STATUS_TRUN5  0x20000000
 190 # define TIMER_STATUS_TRUN6  0x40000000
 191 # define TIMER_STATUS_TRUN7  0x80000000
 192 # define TIMER_STATUS_TRUN   0xF000F000
 193 # if (MAX_BLACKFIN_GPTIMERS > 8)
 194 #  define TIMER_STATUS_TRUN8  0x1000
 195 #  define TIMER_STATUS_TRUN9  0x2000
 196 #  define TIMER_STATUS_TRUN10 0x4000
 197 #  define TIMER_STATUS_TRUN11 0x8000
 198 # endif
 199 #else
 200 # define TIMER_STATUS_TRUN   0x7000
 201 #endif
 202
 203 /* The actual gptimer API */
 204
 205 void     set_gptimer_pwidth    (int timer_id, uint32_t width);
 206 uint32_t get_gptimer_pwidth    (int timer_id);
 207 void     set_gptimer_period    (int timer_id, uint32_t period);
 208 uint32_t get_gptimer_period    (int timer_id);
 209 uint32_t get_gptimer_count     (int timer_id);
 210 uint16_t get_gptimer_intr      (int timer_id);
 211 void     clear_gptimer_intr    (int timer_id);
 212 uint16_t get_gptimer_over      (int timer_id);
 213 void     clear_gptimer_over    (int timer_id);
 214 void     set_gptimer_config    (int timer_id, uint16_t config);
 215 uint16_t get_gptimer_config    (int timer_id);
 216 void     set_gptimer_pulse_hi  (int timer_id);
 217 void     clear_gptimer_pulse_hi(int timer_id);
 218 void     enable_gptimers       (uint16_t mask);
 219 void     disable_gptimers      (uint16_t mask);
 220 uint16_t get_enabled_gptimers  (void);
 221 uint32_t get_gptimer_status    (int group);
 222 void     set_gptimer_status    (int group, uint32_t value);
 223
 224 #endif