Sylvain Munaut | f5d7bf2 | 2020-09-14 10:23:50 +0200 | [diff] [blame] | 1 | /* |
| 2 | * misc.c |
| 3 | * |
| 4 | * Copyright (C) 2019-2020 Sylvain Munaut <tnt@246tNt.com> |
| 5 | * SPDX-License-Identifier: GPL-3.0-or-later |
| 6 | */ |
| 7 | |
| 8 | #include <stdbool.h> |
| 9 | #include <stdint.h> |
| 10 | |
| 11 | #include "config.h" |
| 12 | #include "misc.h" |
| 13 | |
| 14 | |
| 15 | struct misc { |
| 16 | uint32_t warmboot; |
| 17 | uint32_t _rsvd0[3];; |
| 18 | struct { |
Sylvain Munaut | f5d7bf2 | 2020-09-14 10:23:50 +0200 | [diff] [blame] | 19 | uint16_t rx; |
Sylvain Munaut | 1ac458f | 2020-09-15 22:06:00 +0200 | [diff] [blame] | 20 | uint16_t _rsvd1; |
Sylvain Munaut | f5d7bf2 | 2020-09-14 10:23:50 +0200 | [diff] [blame] | 21 | } e1_tick[2]; |
Sylvain Munaut | 1ac458f | 2020-09-15 22:06:00 +0200 | [diff] [blame] | 22 | struct { |
| 23 | uint32_t _rsvd2; |
| 24 | uint32_t now; |
| 25 | } time; |
Sylvain Munaut | f5d7bf2 | 2020-09-14 10:23:50 +0200 | [diff] [blame] | 26 | } __attribute__((packed,aligned(4))); |
| 27 | |
| 28 | static volatile struct misc * const misc_regs = (void*)(MISC_BASE); |
| 29 | |
| 30 | |
| 31 | void |
| 32 | e1_tick_read(uint16_t *ticks) |
| 33 | { |
| 34 | uint32_t v = misc_regs->e1_tick; |
| 35 | ticks[0] = (v ) & 0xffff; |
| 36 | ticks[1] = (v >> 16) & 0xffff; |
| 37 | } |