Atmosphere/libraries/libvapours/source/dd/dd_io_mapping.cpp
SciresM 166318ba77
sdmmc: implement driver suitable for fs + bootloader
* sdmmc: begin skeletoning sdmmc driver

* sdmmc: add most of SdHostStandardController

* sdmmc: implement most of SdmmcController

* sdmmc: Sdmmc2Controller

* sdmmc: skeleton implementation of Sdmmc1Controller

* sdmmc: complete abstract logic for Sdmmc1 power controller

* sdmmc: implement gpio handling for sdmmc1-register-control

* sdmmc: implement pinmux handling for sdmmc1-register-control

* sdmmc: fix building for arm32 and in stratosphere context

* sdmmc: implement voltage enable/set for sdmmc1-register-control

* util: move T(V)SNPrintf from kernel to util

* sdmmc: implement BaseDeviceAccessor

* sdmmc: implement MmcDeviceAccessor

* sdmmc: implement clock reset controller for register api

* sdmmc: fix bug in WaitWhileCommandInhibit, add mmc accessors

* exo: add sdmmc test program

* sdmmc: fix speed mode extension, add CheckMmcConnection for debug

* sdmmc: add DeviceDetector, gpio: implement client api

* gpio: modernize client api instead of doing it the lazy way

* sdmmc: SdCardDeviceAccessor impl

* sdmmc: update test program to read first two sectors of sd card

* sdmmc: fix vref sel

* sdmmc: finish outward-facing api (untested)

* ams: changes for libvapours including tegra register defs

* sdmmc: remove hwinit
2020-10-30 11:54:30 -07:00

101 lines
4 KiB
C++

/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#if defined(ATMOSPHERE_IS_STRATOSPHERE)
#include <stratosphere.hpp>
#elif defined(ATMOSPHERE_IS_MESOSPHERE)
#include <mesosphere.hpp>
#elif defined(ATMOSPHERE_IS_EXOSPHERE)
#include <exosphere.hpp>
#else
#include <vapours.hpp>
#endif
namespace ams::dd {
uintptr_t QueryIoMapping(dd::PhysicalAddress phys_addr, size_t size) {
#if defined(ATMOSPHERE_IS_EXOSPHERE)
#if defined(ATMOSPHERE_ARCH_ARM64)
/* TODO: Secure Monitor translation? */
AMS_UNUSED(size);
return static_cast<uintptr_t>(phys_addr);
#elif defined(ATMOSPHERE_ARCH_ARM)
/* TODO: BPMP translation? */
AMS_UNUSED(size);
return static_cast<uintptr_t>(phys_addr);
#else
#error "Unknown architecture for ams::dd::QueryIoMapping (EXOSPHERE)!"
#endif
#elif defined(ATMOSPHERE_IS_MESOSPHERE)
/* TODO: Kernel address translation? */
AMS_UNUSED(size);
return static_cast<uintptr_t>(phys_addr);
#elif defined(ATMOSPHERE_IS_STRATOSPHERE)
svc::Address virt_addr = 0;
const dd::PhysicalAddress aligned_addr = util::AlignDown(phys_addr, os::MemoryPageSize);
const size_t offset = phys_addr - aligned_addr;
const size_t aligned_size = size + offset;
if (hos::GetVersion() >= hos::Version_10_0_0) {
svc::Size region_size = 0;
R_TRY_CATCH(svc::QueryIoMapping(&virt_addr, &region_size, aligned_addr, aligned_size)) {
/* Official software handles this by returning 0. */
R_CATCH(svc::ResultNotFound) { return 0; }
} R_END_TRY_CATCH_WITH_ABORT_UNLESS;
AMS_ASSERT(region_size >= aligned_size);
} else {
R_TRY_CATCH(svc::LegacyQueryIoMapping(&virt_addr, aligned_addr, aligned_size)) {
/* Official software handles this by returning 0. */
R_CATCH(svc::ResultNotFound) { return 0; }
} R_END_TRY_CATCH_WITH_ABORT_UNLESS;
}
return static_cast<uintptr_t>(virt_addr) + offset;
#else
#error "Unknown execution context for ams::dd::QueryIoMapping!"
#endif
}
u32 ReadIoRegister(dd::PhysicalAddress phys_addr) {
#if defined(ATMOSPHERE_IS_EXOSPHERE) || defined(ATMOSPHERE_IS_MESOSPHERE)
return reg::Read(dd::QueryIoMapping(phys_addr, sizeof(u32)));
#elif defined(ATMOSPHERE_IS_STRATOSPHERE)
u32 val;
R_ABORT_UNLESS(svc::ReadWriteRegister(std::addressof(val), phys_addr, 0, 0));
return val;
#else
#error "Unknown execution context for ams::dd::ReadIoRegister!"
#endif
}
void WriteIoRegister(dd::PhysicalAddress phys_addr, u32 value) {
#if defined(ATMOSPHERE_IS_EXOSPHERE) || defined(ATMOSPHERE_IS_MESOSPHERE)
reg::Write(dd::QueryIoMapping(phys_addr, sizeof(u32)), value);
#elif defined(ATMOSPHERE_IS_STRATOSPHERE)
u32 out_val;
R_ABORT_UNLESS(svc::ReadWriteRegister(std::addressof(out_val), phys_addr, 0xFFFFFFFF, value));
AMS_UNUSED(out_val);
#else
#error "Unknown execution context for ams::dd::WriteIoRegister!"
#endif
}
}