Add some useful timer macros
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@ -30,7 +30,7 @@
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* This file is part of libmc1322x: see http://mc1322x.devl.org
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* for details.
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*
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* $Id: tmr.h,v 1.7 2010/11/07 14:24:11 maralvira Exp $
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* $Id: tmr.h,v 1.8 2010/11/07 14:24:36 maralvira Exp $
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*/
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#ifndef TMR_H
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@ -139,11 +139,15 @@ static volatile struct TMR_struct * const TMR1 = (void *) (TMR1_BASE);
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static volatile struct TMR_struct * const TMR2 = (void *) (TMR2_BASE);
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static volatile struct TMR_struct * const TMR3 = (void *) (TMR3_BASE);
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/* Get timer number from the timer pointer. */
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#define TMR_NUM(x) (((uint32_t)(x) - TMR_BASE) / TMR_OFFSET)
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/* Used to compute which enable bit to set for a particular timer, e.g.
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TMR0.ENBL |= TMR_ENABLE_BIT(TMR2);
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Helpful when you're using macros to define timers
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*/
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#define TMR_ENABLE_BIT(x) (((x) == TMR0) ? 1 : ((x) == TMR1) ? 2 : ((x) == TMR2) ? 4 : ((x) == TMR3) ? 8 : 0)
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#define TMR_ENABLE_BIT(x) (1 << TMR_NUM(x))
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#define TMR0_PIN GPIO_08
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#define TMR1_PIN GPIO_09
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#define TMR2_PIN GPIO_10
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