nold/Atmosphere
1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere synced 2024-12-26 22:51:12 +00:00
Code Issues Projects Releases Packages Wiki Activity
Atmosphere/libraries/libvapours/source/sdmmc/impl/sdmmc_io_impl.board.nintendo_nx.cpp

998 lines
44 KiB
C++
Raw Blame History

/*
* 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
#include "sdmmc_timer.hpp"
#include "sdmmc_sdmmc_controller.board.nintendo_nx.hpp"
#include "sdmmc_io_impl.board.nintendo_nx.hpp"
namespace ams::sdmmc::impl {
/* Lovingly taken from libexosphere. */
namespace i2c_impl {
enum Port {
Port_1 = 0,
/* TODO: Support other ports? */
Port_5 = 4,
Port_Count = 5,
};
constexpr inline const dd::PhysicalAddress I2c5RegistersAddress = UINT64_C(0x7000D000);
constexpr inline const size_t I2c5RegistersSize = 4_KB;
namespace {
constexpr inline size_t MaxTransferSize = sizeof(u32);
constinit std::array<uintptr_t, Port_Count> g_register_addresses = [] {
std::array<uintptr_t, Port_Count> arr = {};
return arr;
}();
void LoadConfig(uintptr_t address) {
/* Configure for TIMEOUT and MSTR config load. */
/* NOTE: Nintendo writes value 1 to reserved bit 5 here. This bit is documented as having no meaning. */
/* We will reproduce the write just in case it is undocumented. */
reg::Write(address + I2C_CONFIG_LOAD, I2C_REG_BITS_VALUE(CONFIG_LOAD_RESERVED_BIT_5, 1),
I2C_REG_BITS_ENUM (CONFIG_LOAD_TIMEOUT_CONFIG_LOAD, ENABLE),
I2C_REG_BITS_ENUM (CONFIG_LOAD_SLV_CONFIG_LOAD, DISABLE),
I2C_REG_BITS_ENUM (CONFIG_LOAD_MSTR_CONFIG_LOAD, ENABLE));
/* Wait up to 20 microseconds for the master config to be loaded. */
for (int i = 0; i < 20; ++i) {
if (reg::HasValue(address + I2C_CONFIG_LOAD, I2C_REG_BITS_ENUM(CONFIG_LOAD_MSTR_CONFIG_LOAD, DISABLE))) {
return;
}
util::WaitMicroSeconds(1);
}
}
void ClearBus(uintptr_t address) {
/* Configure the bus clear register. */
reg::Write(address + I2C_BUS_CLEAR_CONFIG, I2C_REG_BITS_VALUE(BUS_CLEAR_CONFIG_BC_SCLK_THRESHOLD, 9),
I2C_REG_BITS_ENUM (BUS_CLEAR_CONFIG_BC_STOP_COND, NO_STOP),
I2C_REG_BITS_ENUM (BUS_CLEAR_CONFIG_BC_TERMINATE, IMMEDIATE),
I2C_REG_BITS_ENUM (BUS_CLEAR_CONFIG_BC_ENABLE, ENABLE));
/* Load the config. */
LoadConfig(address);
/* Wait up to 250us (in 25 us increments) until the bus clear is done. */
for (int i = 0; i < 10; ++i) {
if (reg::HasValue(address + I2C_INTERRUPT_STATUS_REGISTER, I2C_REG_BITS_ENUM(INTERRUPT_STATUS_REGISTER_BUS_CLEAR_DONE, SET))) {
break;
}
util::WaitMicroSeconds(25);
}
/* Read the bus clear status. */
reg::Read(address + I2C_BUS_CLEAR_STATUS);
}
void InitializePort(uintptr_t address) {
/* Calculate the divisor. */
constexpr int Divisor = util::DivideUp(19200, 8 * 400);
/* Set the divisor. */
reg::Write(address + I2C_CLK_DIVISOR_REGISTER, I2C_REG_BITS_VALUE(CLK_DIVISOR_REGISTER_STD_FAST_MODE, Divisor - 1),
I2C_REG_BITS_VALUE(CLK_DIVISOR_REGISTER_HSMODE, 1));
/* Clear the bus. */
ClearBus(address);
/* Clear the status. */
reg::Write(address + I2C_INTERRUPT_STATUS_REGISTER, reg::Read(address + I2C_INTERRUPT_STATUS_REGISTER));
}
bool Write(uintptr_t base_address, Port port, int address, const void *src, size_t src_size, bool unused) {
AMS_UNUSED(port, unused);
/* Ensure we don't write too much. */
u32 data = 0;
if (src_size > MaxTransferSize) {
return false;
}
/* Copy the data to a transfer word. */
std::memcpy(std::addressof(data), src, src_size);
/* Configure the to write the 7-bit address. */
reg::Write(base_address + I2C_I2C_CMD_ADDR0, I2C_REG_BITS_VALUE(I2C_CMD_ADDR0_7BIT_ADDR, address),
I2C_REG_BITS_ENUM (I2C_CMD_ADDR0_7BIT_RW, WRITE));
/* Configure to write the data. */
reg::Write(base_address + I2C_I2C_CMD_DATA1, data);
/* Configure to write the correct amount of data. */
reg::Write(base_address + I2C_I2C_CNFG, I2C_REG_BITS_ENUM (I2C_CNFG_DEBOUNCE_CNT, DEBOUNCE_4T),
I2C_REG_BITS_ENUM (I2C_CNFG_NEW_MASTER_FSM, ENABLE),
I2C_REG_BITS_ENUM (I2C_CNFG_CMD1, WRITE),
I2C_REG_BITS_VALUE(I2C_CNFG_LENGTH, src_size - 1));
/* Load the configuration. */
LoadConfig(base_address);
/* Start the command. */
reg::ReadWrite(base_address + I2C_I2C_CNFG, I2C_REG_BITS_ENUM(I2C_CNFG_SEND, GO));
/* Wait for the command to be done. */
while (!reg::HasValue(base_address + I2C_I2C_STATUS, I2C_REG_BITS_ENUM(I2C_STATUS_BUSY, NOT_BUSY))) { /* ... */ }
/* Check if the transfer was successful. */
return reg::HasValue(base_address + I2C_I2C_STATUS, I2C_REG_BITS_ENUM(I2C_STATUS_CMD1_STAT, SL1_XFER_SUCCESSFUL));
}
bool Read(uintptr_t base_address, Port port, void *dst, size_t dst_size, int address, bool unused) {
AMS_UNUSED(port, unused);
/* Ensure we don't read too much. */
if (dst_size > MaxTransferSize) {
return false;
}
/* Configure the to read the 7-bit address. */
reg::Write(base_address + I2C_I2C_CMD_ADDR0, I2C_REG_BITS_VALUE(I2C_CMD_ADDR0_7BIT_ADDR, address),
I2C_REG_BITS_ENUM (I2C_CMD_ADDR0_7BIT_RW, READ));
/* Configure to read the correct amount of data. */
reg::Write(base_address + I2C_I2C_CNFG, I2C_REG_BITS_ENUM (I2C_CNFG_DEBOUNCE_CNT, DEBOUNCE_4T),
I2C_REG_BITS_ENUM (I2C_CNFG_NEW_MASTER_FSM, ENABLE),
I2C_REG_BITS_ENUM (I2C_CNFG_CMD1, READ),
I2C_REG_BITS_VALUE(I2C_CNFG_LENGTH, dst_size - 1));
/* Load the configuration. */
LoadConfig(base_address);
/* Start the command. */
reg::ReadWrite(base_address + I2C_I2C_CNFG, I2C_REG_BITS_ENUM(I2C_CNFG_SEND, GO));
/* Wait for the command to be done. */
while (!reg::HasValue(base_address + I2C_I2C_STATUS, I2C_REG_BITS_ENUM(I2C_STATUS_BUSY, NOT_BUSY))) { /* ... */ }
/* Check that the transfer was successful. */
if (!reg::HasValue(base_address + I2C_I2C_STATUS, I2C_REG_BITS_ENUM(I2C_STATUS_CMD1_STAT, SL1_XFER_SUCCESSFUL))) {
return false;
}
/* Read and copy out the data. */
u32 data = reg::Read(base_address + I2C_I2C_CMD_DATA1);
std::memcpy(dst, std::addressof(data), dst_size);
return true;
}
}
void SetRegisterAddress(Port port, uintptr_t address) {
g_register_addresses[port] = address;
}
void Initialize(Port port) {
InitializePort(g_register_addresses[port]);
}
bool Query(void *dst, size_t dst_size, Port port, int address, int r) {
const uintptr_t base_address = g_register_addresses[port];
/* Select the register we want to read. */
bool success = Write(base_address, port, address, std::addressof(r), 1, false);
if (success) {
/* If we successfully selected, read data from the register. */
success = Read(base_address, port, dst, dst_size, address, true);
}
return success;
}
bool Send(Port port, int address, int r, const void *src, size_t src_size) {
const uintptr_t base_address = g_register_addresses[port];
/* Create a transfer buffer, make sure we can use it. */
u8 buffer[MaxTransferSize];
if (src_size > sizeof(buffer) - 1) {
return false;
}
/* Copy data into the buffer. */
buffer[0] = static_cast<u8>(r);
std::memcpy(buffer + 1, src, src_size);
return Write(base_address, port, address, buffer, src_size + 1, false);
}
}
namespace max7762x {
/* The only regulator we care about for SD card power is ldo2. */
constexpr inline const u8 Max77620PwrI2cAddr = 0x3C;
constexpr inline const u32 Max77620Ldo2MvStep = 50'000; /* 50 mV (50K uV) steps. */
constexpr inline const u32 Max77620Ldo2MvMin = 800'000; /* 0.8V min voltage. */
constexpr inline const u32 Max77620Ldo2MvDefault = 1'800'000; /* 1.8V default voltage. */
constexpr inline const u32 Max77620Ldo2MvMax = 3'300'000; /* 3.3V max voltage. */
constexpr inline const u8 Max77620Ldo2VoltAddr = 0x27;
constexpr inline const u8 Max77620Ldo2CfgAddr = 0x28;
constexpr inline const u8 Max77620Ldo2VoltMask = 0x3F;
constexpr inline const u8 Max77620Ldo2EnableMask = 0xC0;
constexpr inline const u8 Max77620Ldo2EnableShift = 0x6;
constexpr inline const u8 Max77620Ldo2StatusMask = 0x00;
namespace {
#if defined(AMS_SDMMC_THREAD_SAFE)
constinit os::SdkMutex g_i2c_init_mutex;
#define AMS_SDMMC_LOCK_I2C_INIT_MUTEX() std::scoped_lock lk(g_i2c_init_mutex)
#else
#define AMS_SDMMC_LOCK_I2C_INIT_MUTEX()
#endif
constinit bool g_initialized_i2c = false;
void EnsureI2cInitialized() {
if (AMS_UNLIKELY(!g_initialized_i2c)) {
/* Ensure we have exclusive access to the i2c init status. */
AMS_SDMMC_LOCK_I2C_INIT_MUTEX();
if (AMS_LIKELY(!g_initialized_i2c)) {
i2c_impl::SetRegisterAddress(i2c_impl::Port_5, dd::QueryIoMapping(i2c_impl::I2c5RegistersAddress, i2c_impl::I2c5RegistersSize));
i2c_impl::Initialize(i2c_impl::Port_5);
g_initialized_i2c = true;
}
}
}
}
bool SetVoltageEnabled(bool en) {
/* Ensure that we can use i2c to communicate with the max7762x regulator. */
EnsureI2cInitialized();
/* Read the current value. */
u8 val;
if (!i2c_impl::Query(std::addressof(val), sizeof(val), i2c_impl::Port_5, Max77620PwrI2cAddr, Max77620Ldo2VoltAddr)) {
return false;
}
/* Set or clear the enable mask. */
val &= ~Max77620Ldo2EnableMask;
if (en) {
val |= ((3 << Max77620Ldo2EnableShift) & Max77620Ldo2EnableMask);
}
/* Write the updated value. */
if (!i2c_impl::Send(i2c_impl::Port_5, Max77620PwrI2cAddr, Max77620Ldo2VoltAddr, std::addressof(val), sizeof(val))) {
return false;
}
/* Wait 1ms for change to take. */
WaitMicroSeconds(1);
/* Voltage is now enabled/disabled. */
return true;
}
bool SetVoltageValue(u32 micro_volts) {
/* Ensure that we can use i2c to communicate with the max7762x regulator. */
EnsureI2cInitialized();
/* Check that the value is within range. */
if (micro_volts < Max77620Ldo2MvMin || Max77620Ldo2MvMax < micro_volts) {
return false;
}
/* Determine the mult. */
const u32 mult = util::DivideUp(micro_volts - Max77620Ldo2MvMin, Max77620Ldo2MvStep);
/* Read the current value. */
u8 val;
if (!i2c_impl::Query(std::addressof(val), sizeof(val), i2c_impl::Port_5, Max77620PwrI2cAddr, Max77620Ldo2VoltAddr)) {
return false;
}
/* Set the new voltage. */
val &= ~Max77620Ldo2VoltMask;
val |= (mult & Max77620Ldo2VoltMask);
/* Write the updated value. */
if (!i2c_impl::Send(i2c_impl::Port_5, Max77620PwrI2cAddr, Max77620Ldo2VoltAddr, std::addressof(val), sizeof(val))) {
return false;
}
/* Wait 1ms for change to take. */
WaitMicroSeconds(1);
/* Voltage is now set. */
return true;
}
}
Result SetSdCardVoltageEnabled(bool en) {
/* TODO: A way for this to be non-fatal? */
AMS_ABORT_UNLESS(max7762x::SetVoltageEnabled(en));
return ResultSuccess();
}
Result SetSdCardVoltageValue(u32 micro_volts) {
/* TODO: A way for this to be non-fatal? */
AMS_ABORT_UNLESS(max7762x::SetVoltageValue(micro_volts));
return ResultSuccess();
}
namespace gpio_impl {
namespace {
constexpr inline dd::PhysicalAddress GpioRegistersPhysicalAddress = 0x6000d000;
constexpr inline size_t GpioRegistersSize = 4_KB;
enum GpioPadPort {
GpioPadPort_A = 0,
GpioPadPort_B = 1,
GpioPadPort_C = 2,
GpioPadPort_D = 3,
GpioPadPort_E = 4,
GpioPadPort_F = 5,
GpioPadPort_G = 6,
GpioPadPort_H = 7,
GpioPadPort_I = 8,
GpioPadPort_J = 9,
GpioPadPort_K = 10,
GpioPadPort_L = 11,
GpioPadPort_M = 12,
GpioPadPort_N = 13,
GpioPadPort_O = 14,
GpioPadPort_P = 15,
GpioPadPort_Q = 16,
GpioPadPort_R = 17,
GpioPadPort_S = 18,
GpioPadPort_T = 19,
GpioPadPort_U = 20,
GpioPadPort_V = 21,
GpioPadPort_W = 22,
GpioPadPort_X = 23,
GpioPadPort_Y = 24,
GpioPadPort_Z = 25,
GpioPadPort_AA = 26,
GpioPadPort_BB = 27,
GpioPadPort_CC = 28,
GpioPadPort_DD = 29,
GpioPadPort_EE = 30,
GpioPadPort_FF = 31,
};
consteval unsigned int GetInternalGpioPadNumber(GpioPadPort port, unsigned int which) {
AMS_ASSUME(which < 8);
return (static_cast<unsigned int>(port) * 8) + which;
}
enum InternalGpioPadNumber {
InternalGpioPadNumber_E4 = GetInternalGpioPadNumber(GpioPadPort_E, 4),
InternalGpioPadNumber_M0 = GetInternalGpioPadNumber(GpioPadPort_M, 0),
};
constexpr int ConvertInternalGpioPadNumberToController(InternalGpioPadNumber number) {
return (number >> 5);
}
constexpr int ConvertInternalGpioPadNumberToPort(InternalGpioPadNumber number) {
return (number >> 3);
}
constexpr int ConvertInternalGpioPadNumberToBitIndex(InternalGpioPadNumber number) {
return (number & 7);
}
constexpr int ConvertPortNumberToOffset(int port_number) {
return (port_number & 3);
}
struct PadNameToInternalPadNumberEntry {
GpioPadName pad_name;
InternalGpioPadNumber internal_number;
};
constexpr inline const PadNameToInternalPadNumberEntry PadNameToInternalPadNumberTable[] = {
{ GpioPadName_PowSdEn, InternalGpioPadNumber_E4 },
};
constexpr InternalGpioPadNumber ConvertPadNameToInternalPadNumber(GpioPadName pad) {
const PadNameToInternalPadNumberEntry *target = nullptr;
for (const auto &entry : PadNameToInternalPadNumberTable) {
if (entry.pad_name == pad) {
target = std::addressof(entry);
break;
}
}
AMS_ABORT_UNLESS(target != nullptr);
return target->internal_number;
}
enum GpioRegisterType {
GpioRegisterType_GPIO_CNF = 0,
GpioRegisterType_GPIO_OE = 1,
GpioRegisterType_GPIO_OUT = 2,
GpioRegisterType_GPIO_IN = 3,
GpioRegisterType_GPIO_INT_STA = 4,
GpioRegisterType_GPIO_INT_ENB = 5,
GpioRegisterType_GPIO_INT_LVL = 6,
GpioRegisterType_GPIO_INT_CLR = 7,
GpioRegisterType_GPIO_DB_CTRL = 8,
GpioRegisterType_GPIO_DB_CNT = 9,
};
constexpr inline uintptr_t MaskedWriteAddressOffset = 0x80;
constexpr inline int MaskedWriteBitOffset = 8;
constexpr uintptr_t GetGpioRegisterAddress(uintptr_t gpio_address, GpioRegisterType reg_type, InternalGpioPadNumber pad_number) {
const auto controller = ConvertInternalGpioPadNumberToController(pad_number);
const auto port = ConvertInternalGpioPadNumberToPort(pad_number);
const auto offset = ConvertPortNumberToOffset(port);
switch (reg_type) {
default:
return gpio_address + (0x100 * controller) + (0x10 * reg_type) + (0x4 * offset);
case GpioRegisterType_GPIO_DB_CTRL:
return gpio_address + (0x100 * controller) + (0x10 * GpioRegisterType_GPIO_IN) + (0x4 * offset);
case GpioRegisterType_GPIO_DB_CNT:
return gpio_address + (0x100 * controller) + MaskedWriteAddressOffset + (0x10 * GpioRegisterType_GPIO_INT_CLR) + (0x4 * offset);
}
}
void SetMaskedBit(uintptr_t pad_address, int index, int value) {
const uintptr_t mask_address = pad_address + MaskedWriteAddressOffset;
reg::Write(mask_address, (1u << (MaskedWriteBitOffset + index)) | (static_cast<unsigned int>(value) << index));
}
void SetMaskedBits(uintptr_t pad_address, unsigned int mask, unsigned int value) {
const uintptr_t mask_address = pad_address + MaskedWriteAddressOffset;
reg::Write(mask_address, (mask << MaskedWriteBitOffset) | (value));
}
}
void OpenSession(GpioPadName pad) {
/* Convert the pad to an internal number. */
const auto pad_number = ConvertPadNameToInternalPadNumber(pad);
/* Get the gpio registers address. */
const uintptr_t gpio_address = dd::QueryIoMapping(GpioRegistersPhysicalAddress, GpioRegistersSize);
/* Configure the pad as GPIO by setting the appropriate bit in CNF. */
const uintptr_t pad_address = GetGpioRegisterAddress(gpio_address, GpioRegisterType_GPIO_CNF, pad_number);
const uintptr_t pad_index = ConvertInternalGpioPadNumberToBitIndex(pad_number);
SetMaskedBit(pad_address, pad_index, 1);
/* Read the pad address to make sure our configuration takes. */
reg::Read(pad_address);
}
void CloseSession(GpioPadName pad) {
/* Nothing needs to be done here, as the only thing official code does is unbind the interrupt event. */
AMS_UNUSED(pad);
}
void SetDirection(GpioPadName pad, Direction direction) {
/* Convert the pad to an internal number. */
const auto pad_number = ConvertPadNameToInternalPadNumber(pad);
/* Get the gpio registers address. */
const uintptr_t gpio_address = dd::QueryIoMapping(GpioRegistersPhysicalAddress, GpioRegistersSize);
/* Configure the pad direction modifying the appropriate bit in OE. */
const uintptr_t pad_address = GetGpioRegisterAddress(gpio_address, GpioRegisterType_GPIO_OE, pad_number);
const uintptr_t pad_index = ConvertInternalGpioPadNumberToBitIndex(pad_number);
SetMaskedBit(pad_address, pad_index, direction);
/* Read the pad address to make sure our configuration takes. */
reg::Read(pad_address);
}
void SetValue(GpioPadName pad, GpioValue value) {
/* Convert the pad to an internal number. */
const auto pad_number = ConvertPadNameToInternalPadNumber(pad);
/* Get the gpio registers address. */
const uintptr_t gpio_address = dd::QueryIoMapping(GpioRegistersPhysicalAddress, GpioRegistersSize);
/* Configure the pad value modifying the appropriate bit in OUT. */
const uintptr_t pad_address = GetGpioRegisterAddress(gpio_address, GpioRegisterType_GPIO_OUT, pad_number);
const uintptr_t pad_index = ConvertInternalGpioPadNumberToBitIndex(pad_number);
SetMaskedBit(pad_address, pad_index, value);
/* Read the pad address to make sure our configuration takes. */
reg::Read(pad_address);
}
}
namespace pinmux_impl {
namespace {
constexpr auto Sdmmc1ClkCmdDat03PadNumber = gpio_impl::InternalGpioPadNumber_M0;
constexpr unsigned int Sdmmc1ClkCmdDat03PadMask = 0x3F;
constexpr unsigned int Sdmmc1ClkCmdDat03PadCnfGpio = 0x3F;
constexpr unsigned int Sdmmc1ClkCmdDat03PadCnfSfio = 0x00;
constexpr unsigned int Sdmmc1ClkCmdDat03PadOutHigh = 0x3F;
constexpr unsigned int Sdmmc1ClkCmdDat03PadOutLow = 0x00;
constexpr unsigned int Sdmmc1ClkCmdDat03PadOeOutput = 0x3F;
constexpr unsigned int Sdmmc1ClkCmdDat03PadOeInput = 0x00;
struct PinmuxDefinition {
u32 reg_offset;
u32 mask_val;
u32 pm_val;
};
/* NOTE: We only use the SDMMC1 pins, which are conveniently the first few... */
constexpr const PinmuxDefinition PinmuxDefinitionMap[] = {
{0x00003000, 0x72FF, 0x01}, /* Sdmmc1Clk */
{0x00003004, 0x72FF, 0x02}, /* Sdmmc1Cmd */
{0x00003008, 0x72FF, 0x02}, /* Sdmmc1Dat3 */
{0x0000300C, 0x72FF, 0x02}, /* Sdmmc1Dat2 */
{0x00003010, 0x72FF, 0x02}, /* Sdmmc1Dat1 */
{0x00003014, 0x72FF, 0x01}, /* Sdmmc1Dat0 */
};
enum PinmuxPadIndex {
PinmuxPadIndex_Sdmmc1Clk = 0,
PinmuxPadIndex_Sdmmc1Cmd = 1,
PinmuxPadIndex_Sdmmc1Dat3 = 2,
PinmuxPadIndex_Sdmmc1Dat2 = 3,
PinmuxPadIndex_Sdmmc1Dat1 = 4,
PinmuxPadIndex_Sdmmc1Dat0 = 5,
PinmuxPadIndex_Count,
};
static_assert(util::size(PinmuxDefinitionMap) == PinmuxPadIndex_Count);
consteval const PinmuxDefinition GetDefinition(PinmuxPadIndex pad_index) {
AMS_ABORT_UNLESS(pad_index < PinmuxPadIndex_Count);
return PinmuxDefinitionMap[pad_index];
}
template<PinmuxPadIndex PadIndex, u32 PinmuxConfigVal, u32 PinmuxConfigMaskVal>
ALWAYS_INLINE u32 UpdatePinmuxPad(uintptr_t pinmux_base_vaddr) {
constexpr const PinmuxDefinition Definition = GetDefinition(PadIndex);
/* Fetch this PINMUX's register offset */
constexpr u32 PinmuxRegOffset = Definition.reg_offset;
/* Fetch this PINMUX's mask value */
constexpr u32 PinmuxMaskVal = Definition.mask_val;
/* Get current register ptr. */
const uintptr_t pinmux_reg = pinmux_base_vaddr + PinmuxRegOffset;
/* Read from the PINMUX register */
u32 pinmux_val = reg::Read(pinmux_reg);
/* This PINMUX register is locked */
AMS_ABORT_UNLESS((pinmux_val & 0x80) == 0);
constexpr u32 PmVal = (PinmuxConfigVal & 0x07);
/* Adjust PM */
if constexpr (PinmuxConfigMaskVal & 0x07) {
/* Apply additional changes first */
if constexpr (PmVal == 0x05) {
/* This pin supports PUPD change */
if constexpr (PinmuxMaskVal & 0x0C) {
/* Change PUPD */
if ((pinmux_val & 0x0C) != 0x04) {
pinmux_val &= 0xFFFFFFF3;
pinmux_val |= 0x04;
}
}
/* This pin supports Tristate change */
if constexpr (PinmuxMaskVal & 0x10) {
/* Change Tristate */
if (!(pinmux_val & 0x10)) {
pinmux_val |= 0x10;
}
}
/* This pin supports EInput change */
if constexpr (PinmuxMaskVal & 0x40) {
/* Change EInput */
if (pinmux_val & 0x40) {
pinmux_val &= 0xFFFFFFBF;
}
}
}
/* Translate PM value if necessary */
constexpr u32 TranslatedPmVal = (PmVal == 0x04 || PmVal == 0x05 || PmVal >= 0x06) ? Definition.pm_val : PmVal;
/* This pin supports PM change */
if constexpr (PinmuxMaskVal & 0x03) {
/* Change PM */
if ((pinmux_val & 0x03) != (TranslatedPmVal & 0x03)) {
pinmux_val &= 0xFFFFFFFC;
pinmux_val |= (TranslatedPmVal & 0x03);
}
}
}
constexpr u32 PupdConfigVal = (PinmuxConfigVal & 0x18);
/* Adjust PUPD */
if constexpr (PinmuxConfigMaskVal & 0x18) {
if constexpr (PupdConfigVal < 0x11) {
/* This pin supports PUPD change */
if constexpr (PinmuxMaskVal & 0x0C) {
/* Change PUPD */
if (((pinmux_val >> 0x02) & 0x03) != (PupdConfigVal >> 0x03)) {
pinmux_val &= 0xFFFFFFF3;
pinmux_val |= (PupdConfigVal >> 0x01);
}
}
}
}
constexpr u32 EodConfigVal = (PinmuxConfigVal & 0x60);
/* Adjust EOd field */
if constexpr (PinmuxConfigMaskVal & 0x60) {
if constexpr (EodConfigVal == 0x20) {
/* This pin supports Tristate change */
if constexpr (PinmuxMaskVal & 0x10) {
/* Change Tristate */
if (!(pinmux_val & 0x10)) {
pinmux_val |= 0x10;
}
}
/* This pin supports EInput change */
if constexpr (PinmuxMaskVal & 0x40) {
/* Change EInput */
if (!(pinmux_val & 0x40)) {
pinmux_val |= 0x40;
}
}
/* This pin supports EOd change */
if constexpr (PinmuxMaskVal & 0x800) {
/* Change EOd */
if (pinmux_val & 0x800) {
pinmux_val &= 0xFFFFF7FF;
}
}
} else if constexpr (EodConfigVal == 0x40) {
/* This pin supports Tristate change */
if constexpr (PinmuxMaskVal & 0x10) {
/* Change Tristate */
if (pinmux_val & 0x10) {
pinmux_val &= 0xFFFFFFEF;
}
}
/* This pin supports EInput change */
if constexpr (PinmuxMaskVal & 0x40) {
/* Change EInput */
if (!(pinmux_val & 0x40)) {
pinmux_val |= 0x40;
}
}
/* This pin supports EOd change */
if constexpr (PinmuxMaskVal & 0x800) {
/* Change EOd */
if (pinmux_val & 0x800) {
pinmux_val &= 0xFFFFF7FF;
}
}
} else if constexpr (EodConfigVal == 0x60) {
/* This pin supports Tristate change */
if constexpr (PinmuxMaskVal & 0x10) {
/* Change Tristate */
if (pinmux_val & 0x10) {
pinmux_val &= 0xFFFFFFEF;
}
}
/* This pin supports EInput change */
if constexpr (PinmuxMaskVal & 0x40) {
/* Change EInput */
if (!(pinmux_val & 0x40)) {
pinmux_val |= 0x40;
}
}
/* This pin supports EOd change */
if constexpr (PinmuxMaskVal & 0x800) {
/* Change EOd */
if (!(pinmux_val & 0x800)) {
pinmux_val |= 0x800;
}
}
} else {
/* This pin supports Tristate change */
if constexpr (PinmuxMaskVal & 0x10) {
/* Change Tristate */
if (pinmux_val & 0x10) {
pinmux_val &= 0xFFFFFFEF;
}
}
/* This pin supports EInput change */
if constexpr (PinmuxMaskVal & 0x40) {
/* Change EInput */
if (pinmux_val & 0x40) {
pinmux_val &= 0xFFFFFFBF;
}
}
/* This pin supports EOd change */
if constexpr (PinmuxMaskVal & 0x800) {
/* Change EOd */
if (pinmux_val & 0x800) {
pinmux_val &= 0xFFFFF7FF;
}
}
}
}
constexpr u32 LockConfigVal = (PinmuxConfigVal & 0x80);
/* Adjust Lock */
if constexpr (PinmuxConfigMaskVal & 0x80) {
/* This pin supports Lock change */
if constexpr (PinmuxMaskVal & 0x80) {
/* Change Lock */
if ((pinmux_val ^ PinmuxConfigVal) & 0x80) {
pinmux_val &= 0xFFFFFF7F;
pinmux_val |= LockConfigVal;
}
}
}
constexpr u32 IoResetConfigVal = (((PinmuxConfigVal >> 0x08) & 0x1) << 0x10);
/* Adjust IoReset */
if constexpr (PinmuxConfigMaskVal & 0x100) {
/* This pin supports IoReset change */
if constexpr (PinmuxMaskVal & 0x10000) {
/* Change IoReset */
if (((pinmux_val >> 0x10) ^ (PinmuxConfigVal >> 0x08)) & 0x01) {
pinmux_val &= 0xFFFEFFFF;
pinmux_val |= IoResetConfigVal;
}
}
}
constexpr u32 ParkConfigVal = (((PinmuxConfigVal >> 0x0A) & 0x1) << 0x5);
/* Adjust Park */
if constexpr (PinmuxConfigMaskVal & 0x400) {
/* This pin supports Park change */
if constexpr (PinmuxMaskVal & 0x20) {
/* Change Park */
if (((pinmux_val >> 0x05) ^ (PinmuxConfigVal >> 0x0A)) & 0x01) {
pinmux_val &= 0xFFFFFFDF;
pinmux_val |= ParkConfigVal;
}
}
}
constexpr u32 ElpdrConfigVal = (((PinmuxConfigVal >> 0x0B) & 0x1) << 0x08);
/* Adjust ELpdr */
if constexpr (PinmuxConfigMaskVal & 0x800) {
/* This pin supports ELpdr change */
if constexpr (PinmuxMaskVal & 0x100) {
/* Change ELpdr */
if (((pinmux_val >> 0x08) ^ (PinmuxConfigVal >> 0x0B)) & 0x01) {
pinmux_val &= 0xFFFFFEFF;
pinmux_val |= ElpdrConfigVal;
}
}
}
constexpr u32 EhsmConfigVal = (((PinmuxConfigVal >> 0x0C) & 0x1) << 0x09);
/* Adjust EHsm */
if constexpr (PinmuxConfigMaskVal & 0x1000) {
/* This pin supports EHsm change */
if constexpr (PinmuxMaskVal & 0x200) {
/* Change EHsm */
if (((pinmux_val >> 0x09) ^ (PinmuxConfigVal >> 0x0C)) & 0x01) {
pinmux_val &= 0xFFFFFDFF;
pinmux_val |= EhsmConfigVal;
}
}
}
constexpr u32 EIoHvConfigVal = (((PinmuxConfigVal >> 0x09) & 0x1) << 0x0A);
/* Adjust EIoHv */
if constexpr (PinmuxConfigMaskVal & 0x200) {
/* This pin supports EIoHv change */
if constexpr (PinmuxMaskVal & 0x400) {
/* Change EIoHv */
if (((pinmux_val >> 0x0A) ^ (PinmuxConfigVal >> 0x09)) & 0x01) {
pinmux_val &= 0xFFFFFBFF;
pinmux_val |= EIoHvConfigVal;
}
}
}
constexpr u32 EschmtConfigVal = (((PinmuxConfigVal >> 0x0D) & 0x1) << 0x0C);
/* Adjust ESchmt */
if constexpr (PinmuxConfigMaskVal & 0x2000) {
/* This pin supports ESchmt change */
if constexpr (PinmuxMaskVal & 0x1000) {
/* Change ESchmt */
if (((pinmux_val >> 0x0C) ^ (PinmuxConfigVal >> 0x0D)) & 0x01) {
pinmux_val &= 0xFFFFEFFF;
pinmux_val |= EschmtConfigVal;
}
}
}
constexpr u32 PreempConfigVal = (((PinmuxConfigVal >> 0x10) & 0x1) << 0xF);
/* Adjust Preemp */
if constexpr (PinmuxConfigMaskVal & 0x10000) {
/* This pin supports Preemp change */
if constexpr (PinmuxMaskVal & 0x8000) {
/* Change Preemp */
if (((pinmux_val >> 0x0F) ^ (PinmuxConfigVal >> 0x10)) & 0x01) {
pinmux_val &= 0xFFFF7FFF;
pinmux_val |= PreempConfigVal;
}
}
}
constexpr u32 DrvTypeConfigVal = (((PinmuxConfigVal >> 0x0E) & 0x3) << 0xD);
/* Adjust DrvType */
if constexpr (PinmuxConfigMaskVal & 0xC000) {
/* This pin supports DrvType change */
if constexpr (PinmuxMaskVal & 0x6000) {
/* Change DrvType */
if (((pinmux_val >> 0x0D) ^ (PinmuxConfigVal >> 0x0E)) & 0x03) {
pinmux_val &= 0xFFFF9FFF;
pinmux_val |= DrvTypeConfigVal;
}
}
}
/* Write to the appropriate PINMUX register */
reg::Write(pinmux_reg, pinmux_val);
/* Do a dummy read from the PINMUX register */
pinmux_val = reg::Read(pinmux_reg);
return pinmux_val;
}
}
void SetPinAssignment(PinAssignment assignment) {
/* Get the apb registers address. */
const uintptr_t apb_address = dd::QueryIoMapping(ApbMiscRegistersPhysicalAddress, ApbMiscRegistersSize);
AMS_UNUSED(apb_address);
/* Set the pin assignment. */
switch (assignment) {
case PinAssignment_Sdmmc1OutputHigh:
{
/* Clear Sdmmc1Clk pulldown. */
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Clk, 0, 0x18>(apb_address);
/* Get the gpio registers address. */
const uintptr_t gpio_address = dd::QueryIoMapping(gpio_impl::GpioRegistersPhysicalAddress, gpio_impl::GpioRegistersSize);
/* Configure GPIO M0-5 (SDMMC1 CLK + CMD + DAT0/1/2/3) as gpio. */
const uintptr_t cnf_address = gpio_impl::GetGpioRegisterAddress(gpio_address, gpio_impl::GpioRegisterType_GPIO_CNF, Sdmmc1ClkCmdDat03PadNumber);
gpio_impl::SetMaskedBits(cnf_address, Sdmmc1ClkCmdDat03PadMask, Sdmmc1ClkCmdDat03PadCnfGpio);
/* Configure GPIO M0-5 (SDMMC1 CLK + CMD + DAT0/1/2/3) as high. */
const uintptr_t out_address = gpio_impl::GetGpioRegisterAddress(gpio_address, gpio_impl::GpioRegisterType_GPIO_OUT, Sdmmc1ClkCmdDat03PadNumber);
gpio_impl::SetMaskedBits(out_address, Sdmmc1ClkCmdDat03PadMask, Sdmmc1ClkCmdDat03PadOutHigh);
/* Configure GPIO M0-5 (SDMMC1 CLK + CMD + DAT0/1/2/3) as output. */
const uintptr_t oe_address = gpio_impl::GetGpioRegisterAddress(gpio_address, gpio_impl::GpioRegisterType_GPIO_OE, Sdmmc1ClkCmdDat03PadNumber);
gpio_impl::SetMaskedBits(oe_address, Sdmmc1ClkCmdDat03PadMask, Sdmmc1ClkCmdDat03PadOeOutput);
/* Read to be sure that our configuration takes. */
reg::Read(oe_address);
}
break;
case PinAssignment_Sdmmc1ResetState:
{
/* Get the gpio registers address. */
const uintptr_t gpio_address = dd::QueryIoMapping(gpio_impl::GpioRegistersPhysicalAddress, gpio_impl::GpioRegistersSize);
/* Configure GPIO M0-5 (SDMMC1 CLK + CMD + DAT0/1/2/3) as sfio. */
const uintptr_t cnf_address = gpio_impl::GetGpioRegisterAddress(gpio_address, gpio_impl::GpioRegisterType_GPIO_CNF, Sdmmc1ClkCmdDat03PadNumber);
gpio_impl::SetMaskedBits(cnf_address, Sdmmc1ClkCmdDat03PadMask, Sdmmc1ClkCmdDat03PadCnfSfio);
/* Configure GPIO M0-5 (SDMMC1 CLK + CMD + DAT0/1/2/3) as low. */
const uintptr_t out_address = gpio_impl::GetGpioRegisterAddress(gpio_address, gpio_impl::GpioRegisterType_GPIO_OUT, Sdmmc1ClkCmdDat03PadNumber);
gpio_impl::SetMaskedBits(out_address, Sdmmc1ClkCmdDat03PadMask, Sdmmc1ClkCmdDat03PadOutLow);
/* Configure GPIO M0-5 (SDMMC1 CLK + CMD + DAT0/1/2/3) as input. */
const uintptr_t oe_address = gpio_impl::GetGpioRegisterAddress(gpio_address, gpio_impl::GpioRegisterType_GPIO_OE, Sdmmc1ClkCmdDat03PadNumber);
gpio_impl::SetMaskedBits(oe_address, Sdmmc1ClkCmdDat03PadMask, Sdmmc1ClkCmdDat03PadOeInput);
/* Read to be sure that our configuration takes. */
reg::Read(oe_address);
/* Set Sdmmc1Clk pulldown. */
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Clk, 0x8, 0x18>(apb_address);
}
break;
case PinAssignment_Sdmmc1SchmtEnable:
{
/* Set Schmitt enable for all pins in the group. */
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Clk, 0x2000, 0x2000>(apb_address);
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Cmd, 0x2000, 0x2000>(apb_address);
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Dat3, 0x2000, 0x2000>(apb_address);
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Dat2, 0x2000, 0x2000>(apb_address);
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Dat1, 0x2000, 0x2000>(apb_address);
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Dat0, 0x2000, 0x2000>(apb_address);
}
break;
case PinAssignment_Sdmmc1SchmtDisable:
{
/* Set Schmitt disable for all pins in the group. */
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Clk, 0x0000, 0x2000>(apb_address);
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Cmd, 0x0000, 0x2000>(apb_address);
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Dat3, 0x0000, 0x2000>(apb_address);
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Dat2, 0x0000, 0x2000>(apb_address);
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Dat1, 0x0000, 0x2000>(apb_address);
UpdatePinmuxPad<PinmuxPadIndex_Sdmmc1Dat0, 0x0000, 0x2000>(apb_address);
}
break;
AMS_UNREACHABLE_DEFAULT_CASE();
}
}
}
}
Reference in a new issue View git blame Copy permalink