mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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f82954e98b
subrepo: subdir: "emummc" merged: "3791be9f" upstream: origin: "https://github.com/m4xw/emummc" branch: "exo2" commit: "3791be9f" git-subrepo: version: "0.4.1" origin: "???" commit: "???"
117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
/*
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* Copyright (c) 2018 naehrwert
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* Copyright (C) 2018 CTCaer
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* Copyright (C) 2019 M4xw
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* Copyright (c) 2019 Atmosphere-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "util.h"
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#include "fatal.h"
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#include "types.h"
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#include "../nx/counter.h"
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#include "../nx/svc.h"
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#include "../soc/t210.h"
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typedef struct _io_mapping_t
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{
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u64 phys;
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u64 virt;
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u64 size;
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} io_mapping_t;
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static io_mapping_t io_mapping_list[10] = {0}; // Max 10 Mappings
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#define IO_MAPPING_COUNT (sizeof(io_mapping_list) / sizeof(io_mapping_t))
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static inline uintptr_t _GetIoMapping(u64 io_addr, u64 io_size)
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{
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u64 vaddr;
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u64 aligned_addr = (io_addr & ~0xFFFul);
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u64 aligned_size = io_size + (io_addr - aligned_addr);
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if (emuMMC_ctx.fs_ver >= FS_VER_10_0_0) {
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u64 out_size;
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if (svcQueryIoMapping(&vaddr, &out_size, aligned_addr, aligned_size) != 0) {
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fatal_abort(Fatal_IoMapping);
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}
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} else {
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if (svcLegacyQueryIoMapping(&vaddr, aligned_addr, aligned_size) != 0) {
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fatal_abort(Fatal_IoMappingLegacy);
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}
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}
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return (uintptr_t)(vaddr + (io_addr - aligned_addr));
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}
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intptr_t QueryIoMapping(u64 addr, u64 size)
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{
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for (int i = 0; i < IO_MAPPING_COUNT; i++)
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{
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if (io_mapping_list[i].phys == addr && io_mapping_list[i].size == size)
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{
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return io_mapping_list[i].virt;
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}
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}
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u64 ioMap = _GetIoMapping(addr, size);
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for (int i = 0; i < IO_MAPPING_COUNT; i++)
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{
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if (io_mapping_list[i].phys == 0 && io_mapping_list[i].virt == 0 && io_mapping_list[i].size == 0) // First empty
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{
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io_mapping_list[i].virt = ioMap;
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io_mapping_list[i].phys = addr;
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io_mapping_list[i].size = size;
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break;
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}
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}
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return (intptr_t)ioMap;
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}
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u64 get_tmr_s()
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{
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return armTicksToNs(armGetSystemTick()) / 1e+9;
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}
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u64 get_tmr_ms()
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{
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return armTicksToNs(armGetSystemTick()) / 1000000;
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}
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u64 get_tmr_us()
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{
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return armTicksToNs(armGetSystemTick()) / 1000;
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}
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// TODO: Figure if Sleep or Busy loop
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void msleep(u64 milliseconds)
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{
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u64 now = get_tmr_ms();
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while (((u64)get_tmr_ms() - now) < milliseconds)
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;
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//svcSleepThread(1000000 * milliseconds);
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}
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// TODO: Figure if Sleep or Busy loop
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void usleep(u64 microseconds)
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{
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u64 now = get_tmr_us();
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while (((u64)get_tmr_us() - now) < microseconds)
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;
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//svcSleepThread(1000 * microseconds);
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}
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void exec_cfg(u32 *base, const cfg_op_t *ops, u32 num_ops)
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{
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for (u32 i = 0; i < num_ops; i++)
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base[ops[i].off] = ops[i].val;
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}
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