/* this implements d0034_efm32tg_reference_manual.pdf's 7.3.4 "Device Revision"
 * section */

#ifndef LIBOPENCM3_EFM32_TINYGECKO_DEVICEREVISION_H
#define LIBOPENCM3_EFM32_TINYGECKO_DEVICEREVISION_H

#include <libopencm3/cm3/common.h>

#define DEVICEREVISION_PID2 MMIO32(0xE00FFFE8)
#define DEVICEREVISION_PID3 MMIO32(0xE00FFFEC)

/* devicerevision_revision_get has a comment that would make these definitions
 * obsolete; i'm not sure how far it is reasonable to parameterize everythin
 * g*/
#define DEVICEREVISION_REVISION_LENGTH 4
#define DEVICEREVISION_REVISION_SHIFT 4
#define DEVICEREVISION_REVISION_MASK (~(~0<<DEVICEREVISION_REVISION_LENGTH)<<DEVICEREVISION_REVISION_SHIFT) /* 0x000000f0, bits 7:4 */

#define DEVICEREVISION_REVISION_A 0x00

/* Read the device's hardcoded Revision. Return values can be compared against
 * the DEVICEREVISION_REVISION_A constant, the only value given in the current
 * specification. */
extern u8 devicerevision_revision_get(void);

#endif