psa_2.h

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/* This file is part of the HWA project.
 * Copyright (c) 2012,2015 Christophe Duparquet.
 * All rights reserved. Read LICENSE.TXT for details.
 */
 
#define hw_reset__psa                   , _hw_psa_reset
 
#define _hw_psa_reset(o,a,...)          _hw_resetpsa(o) HW_EOL(__VA_ARGS__)
 
#define _hw_resetpsa(o)                 _hw_write(o,psr,1)
 
 
#define hw_clear__psa                   , _hw_psa_reset
 
 
#define hw_turn__psa                    , _hw_psa_turn
#define _hw_psa_turn(o,a,v,...)                 \
  HW_G2(_hw_turnpsa, HW_IS(,_hw_state_##v))(o,v)        \
  HW_EOL(__VA_ARGS__)
 
#define _hw_turnpsa_0(o,v)              HW_E(HW_EM_ST(v))
#define _hw_turnpsa_1(o,v)              HW_G2(_hw_turnpsa_1,HW_A1(_hw_state_##v))(o)
 
/*  Stopping the prescaler requires setting its `tsm` and `psr` bits to 1
 */
#define _hw_turnpsa_1_0(o)              _hw_write(o,tsmpsr,3)
 
/*  Releasing the prescaler requires setting its `tsm` bit to 0
 */
#define _hw_turnpsa_1_1(o)              _hw_write(o,tsm,0)
 
 
#define hwa_configure__psa              , _hwa_cfpsa
 
/*  Mandatory argument `clock`
 */
#define _hwa_cfpsa(o,a,k,...)                                   \
  do { HW_B(_hwa_cfpsa_kclock_,_hw_is_clock_##k)(o,k,__VA_ARGS__,,) } while(0)
 
#define _hwa_cfpsa_kclock_0(o,k,...)    HW_E(HW_EM_AN(k,clock))
 
#define _hwa_cfpsa_kclock_1(o,k,v,...)                                  \
  HW_B(_hwa_cfpsa_vclock_,_hw_psa_clock_##v)(o,v,__VA_ARGS__)
 
#define _hw_psa_clock_ioclk             , 0
 
#define _hwa_cfpsa_vclock_0(o,v,...)                                    \
  HW_E(HW_EM_VAL(v,clock,(ioclk)))
 
#define _hwa_cfpsa_vclock_1(o,v,...)                                    \
  HW_EOL(__VA_ARGS__)