include/asm-blackfin/gptimers.h

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