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