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pru: Add support for ADC input

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2017-05-11 14:53:00 -04:00
parent b85755c0ff
commit c9b6662138
7 changed files with 165 additions and 5 deletions
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33
src/pru/internal.h
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@@ -34,6 +34,37 @@ struct shared_mem {
#define SIGNAL_PRU0_WAITING 0xefefefef
#define SIGNAL_PRU1_READY 0xabababab
static struct shared_mem *SHARED_MEM = (void*)0x10000;
#define SHARED_MEM ((struct shared_mem *)0x10000)
// Hardware ADC registers
struct beaglebone_adc {
uint32_t pad_00[10];
uint32_t irqstatus;
uint32_t irqenable_set;
uint32_t irqenable_clr;
uint32_t irqwakeup;
uint32_t dmaenable_set;
uint32_t dmaenable_clr;
uint32_t ctrl;
uint32_t adcstat;
uint32_t adcrange;
uint32_t adc_clkdiv;
uint32_t adc_misc;
uint32_t stepenable;
uint32_t idleconfig;
uint32_t ts_charge_stepconfig;
uint32_t ts_charge_delay;
struct {
uint32_t config;
uint32_t delay;
} step[16];
uint32_t fifo0count;
uint32_t pad_e8[6];
uint32_t fifo0data;
uint32_t pad_104[63];
uint32_t fifo1data;
};
#define ADC ((struct beaglebone_adc *)0x44e0d000)
#endif // internal.h