/* * Copyright (C) 2014 Loci Controls Inc. * * This file is subject to the terms and conditions of the GNU Lesser * General Public License v2.1. See the file LICENSE in the top level * directory for more details. */ /** * @defgroup cpu_cc2538_gptimer CC2538 General Purpose Timer * @ingroup cpu_cc2538_regs * @{ * * @file * @brief CC2538 General Purpose Timer (GPTIMER) driver * * @author Ian Martin */ #ifndef CC2538_GPTIMER_H #define CC2538_GPTIMER_H #include #include "cc2538.h" #ifdef __cplusplus extern "C" { #endif #define GPTIMER_NUMOF 4 /**< The CC2538 has four general-purpose timer units. */ #define NUM_CHANNELS_PER_GPTIMER 2 /**< Each G.P. timer unit has two channels: A and B. */ enum { GPTIMER_ONE_SHOT_MODE = 1, /**< GPTIMER one-shot mode */ GPTIMER_PERIODIC_MODE = 2, /**< GPTIMER periodic mode */ GPTIMER_CAPTURE_MODE = 3, /**< GPTIMER capture mode */ }; enum { GPTMCFG_32_BIT_TIMER = 0, /**< 32-bit timer configuration */ GPTMCFG_32_BIT_REAL_TIME_CLOCK = 1, /**< 32-bit real-time clock */ GPTMCFG_16_BIT_TIMER = 4, /**< 16-bit timer configuration */ }; /** * @brief GPTIMER component registers */ typedef struct { cc2538_reg_t CFG; /**< GPTIMER Configuration */ /** * @brief Timer A */ union { cc2538_reg_t TAMR; /**< GPTIMER Timer A mode */ struct { cc2538_reg_t TAMR2 : 2; /**< GPTM Timer A mode */ cc2538_reg_t TACMR : 1; /**< GPTM Timer A capture mode */ cc2538_reg_t TAAMS : 1; /**< GPTM Timer A alternate mode */ cc2538_reg_t TACDIR : 1; /**< GPTM Timer A count direction */ cc2538_reg_t TAMIE : 1; /**< GPTM Timer A match interrupt enable */ cc2538_reg_t TAWOT : 1; /**< GPTM Timer A wait-on-trigger */ cc2538_reg_t TASNAPS : 1; /**< GPTM Timer A snap shot mode */ cc2538_reg_t TAILD : 1; /**< GPTM Timer A interval load write */ cc2538_reg_t TAPWMIE : 1; /**< GPTM Timer A PWM interrupt enable */ cc2538_reg_t TAMRSU : 1; /**< Timer A match register update mode */ cc2538_reg_t TAPLO : 1; /**< Legacy PWM operation */ cc2538_reg_t RESERVED5 : 20; /**< Reserved bits */ } TAMRbits; } cc2538_gptimer_tamr; /** * @brief Timer B */ union { cc2538_reg_t TBMR; /**< GPTIMER Timer B mode */ struct { cc2538_reg_t TBMR2 : 2; /**< GPTM Timer B mode */ cc2538_reg_t TBCMR : 1; /**< GPTM Timer B capture mode */ cc2538_reg_t TBAMS : 1; /**< GPTM Timer B alternate mode */ cc2538_reg_t TBCDIR : 1; /**< GPTM Timer B count direction */ cc2538_reg_t TBMIE : 1; /**< GPTM Timer B match interrupt enable */ cc2538_reg_t TBWOT : 1; /**< GPTM Timer B wait-on-trigger */ cc2538_reg_t TBSNAPS : 1; /**< GPTM Timer B snap shot mode */ cc2538_reg_t TBILD : 1; /**< GPTM Timer B interval load write */ cc2538_reg_t TBPWMIE : 1; /**< GPTM Timer B PWM interrupt enable */ cc2538_reg_t TBMRSU : 1; /**< Timer B match register update mode */ cc2538_reg_t TBPLO : 1; /**< Legacy PWM operation */ cc2538_reg_t RESERVED6 : 20; /**< Reserved bits */ } TBMRbits; } cc2538_gptimer_tbmr; /** * @brief Timer Control */ union { cc2538_reg_t CTL; /**< GPTIMER Control */ struct { cc2538_reg_t TAEN : 1; /**< GPTM Timer A enable */ cc2538_reg_t TASTALL : 1; /**< GPTM Timer A stall enable */ cc2538_reg_t TAEVENT : 1; /**< GPTM Timer A event mode */ cc2538_reg_t RESERVED1 : 1; /**< Reserved bits */ cc2538_reg_t TAOTE : 1; /**< GPTM Timer A PWM output trigger enable */ cc2538_reg_t TAPWML : 1; /**< GPTM Timer A PWM output level */ cc2538_reg_t RESERVED2 : 1; /**< Reserved bits */ cc2538_reg_t TBEN : 1; /**< GPTM Timer B enable */ cc2538_reg_t TBSTALL : 1; /**< GPTM Timer B stall enable */ cc2538_reg_t TBEVENT : 1; /**< GPTM Timer B event mode */ cc2538_reg_t RESERVED3 : 1; /**< Reserved bits */ cc2538_reg_t TBOTE : 1; /**< GPTM Timer B PWM output trigger enable */ cc2538_reg_t TBPWML : 1; /**< GPTM Timer B PWM output level */ cc2538_reg_t RESERVED4 : 17; /**< Reserved bits */ } CTLbits; } cc2538_gptimer_ctl; cc2538_reg_t SYNC; /**< GPTIMER Synchronize */ cc2538_reg_t RESERVED2; /**< Reserved word */ /** * @brief Interrupt mask control */ union { cc2538_reg_t IMR; /**< GPTIMER Interrupt Mask */ struct { cc2538_reg_t TATOIM : 1; /**< GPTM Timer A time-out interrupt mask */ cc2538_reg_t CAMIM : 1; /**< GPTM Timer A capture match interrupt mask */ cc2538_reg_t CAEIM : 1; /**< GPTM Timer A capture event interrupt mask */ cc2538_reg_t RESERVED1 : 1; /**< Reserved bits */ cc2538_reg_t TAMIM : 1; /**< GPTM Timer A match interrupt mask */ cc2538_reg_t RESERVED2 : 3; /**< Reserved bits */ cc2538_reg_t TBTOIM : 1; /**< GPTM Timer B time-out interrupt mask */ cc2538_reg_t CBMIM : 1; /**< GPTM Timer B capture match interrupt mask */ cc2538_reg_t CBEIM : 1; /**< GPTM Timer B capture event interrupt mask */ cc2538_reg_t TBMIM : 1; /**< GPTM Timer B match interrupt mask */ cc2538_reg_t RESERVED3 : 20; /**< Reserved bits */ } IMRbits; } cc2538_gptimer_imr; cc2538_reg_t RIS; /**< GPTIMER Raw Interrupt Status */ cc2538_reg_t MIS; /**< GPTIMER Masked Interrupt Status */ cc2538_reg_t ICR; /**< GPTIMER Interrupt Clear */ cc2538_reg_t TAILR; /**< GPTIMER Timer A Interval Load */ cc2538_reg_t TBILR; /**< GPTIMER Timer B Interval Load */ cc2538_reg_t TAMATCHR; /**< GPTIMER Timer A Match */ cc2538_reg_t TBMATCHR; /**< GPTIMER Timer B Match */ cc2538_reg_t TAPR; /**< GPTIMER Timer A Prescale Register */ cc2538_reg_t TBPR; /**< GPTIMER Timer B Prescale Register */ cc2538_reg_t TAPMR; /**< GPTIMER Timer A Prescale Match Register */ cc2538_reg_t TBPMR; /**< GPTIMER Timer B Prescale Match Register */ cc2538_reg_t TAR; /**< GPTIMER Timer A */ cc2538_reg_t TBR; /**< GPTIMER Timer B */ cc2538_reg_t TAV; /**< GPTIMER Timer A Value */ cc2538_reg_t TBV; /**< GPTIMER Timer B Value */ cc2538_reg_t RESERVED3; /**< Reserved word */ cc2538_reg_t TAPS; /**< GPTIMER Timer A Prescale Snapshot */ cc2538_reg_t TBPS; /**< GPTIMER Timer B Prescale Snapshot */ cc2538_reg_t TAPV; /**< GPTIMER Timer A Prescale Value */ cc2538_reg_t TBPV; /**< GPTIMER Timer B Prescale Value */ cc2538_reg_t RESERVED[981]; /**< Reserved */ cc2538_reg_t PP; /**< GPTIMER Peripheral Properties */ cc2538_reg_t RESERVED4[15]; /**< Reserved */ } cc2538_gptimer_t; /** * @brief Base address of general-purpose timers (GPT) */ #define GPTIMER_BASE (0x40030000) #define GPTIMER0 ( (cc2538_gptimer_t*)0x40030000 ) /**< GPTIMER0 Instance */ #define GPTIMER1 ( (cc2538_gptimer_t*)0x40031000 ) /**< GPTIMER1 Instance */ #define GPTIMER2 ( (cc2538_gptimer_t*)0x40032000 ) /**< GPTIMER2 Instance */ #define GPTIMER3 ( (cc2538_gptimer_t*)0x40033000 ) /**< GPTIMER3 Instance */ void isr_timer0_chan0(void); /**< RIOT Timer 0 Channel 0 Interrupt Service Routine */ void isr_timer0_chan1(void); /**< RIOT Timer 0 Channel 1 Interrupt Service Routine */ void isr_timer1_chan0(void); /**< RIOT Timer 1 Channel 0 Interrupt Service Routine */ void isr_timer1_chan1(void); /**< RIOT Timer 1 Channel 1 Interrupt Service Routine */ void isr_timer2_chan0(void); /**< RIOT Timer 2 Channel 0 Interrupt Service Routine */ void isr_timer2_chan1(void); /**< RIOT Timer 2 Channel 1 Interrupt Service Routine */ void isr_timer3_chan0(void); /**< RIOT Timer 3 Channel 0 Interrupt Service Routine */ void isr_timer3_chan1(void); /**< RIOT Timer 3 Channel 1 Interrupt Service Routine */ #ifdef __cplusplus } /* end extern "C" */ #endif #endif /* CC2538_GPTIMER_H */ /* @} */