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#![allow(non_snake_case)]
#![allow(non_camel_case_types)]
#![allow(unused)]
use super::BlockDevice;
use core::convert::TryInto;
use k210_hal::prelude::*;
use k210_pac::{Peripherals, SPI0};
use k210_soc::{
fpioa::{self, io},
gpio,
gpiohs,
sleep::usleep,
spi::{aitm, frame_format, tmod, work_mode, SPIExt, SPIImpl, SPI},
sysctl,
};
use lazy_static::*;
use spin::Mutex;
pub struct SDCard<SPI> {
spi: SPI,
spi_cs: u32,
cs_gpionum: u8,
}
pub const SD_START_DATA_SINGLE_BLOCK_READ: u8 = 0xFE;
pub const SD_START_DATA_MULTIPLE_BLOCK_READ: u8 = 0xFE;
pub const SD_START_DATA_SINGLE_BLOCK_WRITE: u8 = 0xFE;
pub const SD_START_DATA_MULTIPLE_BLOCK_WRITE: u8 = 0xFC;
pub const SEC_LEN: usize = 512;
#[repr(u8)]
#[derive(Debug, PartialEq, Eq, Copy, Clone)]
#[allow(unused)]
pub enum CMD {
CMD0 = 0,
CMD8 = 8,
CMD9 = 9,
CMD10 = 10,
CMD12 = 12,
CMD16 = 16,
CMD17 = 17,
CMD18 = 18,
ACMD23 = 23,
CMD24 = 24,
CMD25 = 25,
ACMD41 = 41,
CMD55 = 55,
CMD58 = 58,
CMD59 = 59,
}
#[allow(unused)]
#[derive(Debug, Copy, Clone)]
pub enum InitError {
CMDFailed(CMD, u8),
CardCapacityStatusNotSet([u8; 4]),
CannotGetCardInfo,
}
#[derive(Debug, Copy, Clone)]
pub struct SDCardCSD {
pub CSDStruct: u8,
pub SysSpecVersion: u8,
pub Reserved1: u8,
pub TAAC: u8,
pub NSAC: u8,
pub MaxBusClkFrec: u8,
pub CardComdClasses: u16,
pub RdBlockLen: u8,
pub PartBlockRead: u8,
pub WrBlockMisalign: u8,
pub RdBlockMisalign: u8,
pub DSRImpl: u8,
pub Reserved2: u8,
pub DeviceSize: u32,
pub EraseGrSize: u8,
pub EraseGrMul: u8,
pub WrProtectGrSize: u8,
pub WrProtectGrEnable: u8,
pub ManDeflECC: u8,
pub WrSpeedFact: u8,
pub MaxWrBlockLen: u8,
pub WriteBlockPaPartial: u8,
pub Reserved3: u8,
pub ContentProtectAppli: u8,
pub FileFormatGroup: u8,
pub CopyFlag: u8,
pub PermWrProtect: u8,
pub TempWrProtect: u8,
pub FileFormat: u8,
pub ECC: u8,
pub CSD_CRC: u8,
pub Reserved4: u8,
}
#[derive(Debug, Copy, Clone)]
pub struct SDCardCID {
pub ManufacturerID: u8,
pub OEM_AppliID: u16,
pub ProdName1: u32,
pub ProdName2: u8,
pub ProdRev: u8,
pub ProdSN: u32,
pub Reserved1: u8,
pub ManufactDate: u16,
pub CID_CRC: u8,
pub Reserved2: u8,
}
#[derive(Debug, Copy, Clone)]
pub struct SDCardInfo {
pub SD_csd: SDCardCSD,
pub SD_cid: SDCardCID,
pub CardCapacity: u64,
pub CardBlockSize: u64,
}
impl< X: SPI> SDCard< X> {
pub fn new(
spi: X,
spi_cs: u32,
cs_gpionum: u8,
) -> Self {
Self {
spi,
spi_cs,
cs_gpionum,
}
}
fn CS_HIGH(&self) {
gpiohs::set_pin(self.cs_gpionum, true);
}
fn CS_LOW(&self) {
gpiohs::set_pin(self.cs_gpionum, false);
}
fn HIGH_SPEED_ENABLE(&self) {
self.spi.set_clk_rate(10000000);
}
fn lowlevel_init(&self) {
gpiohs::set_direction(self.cs_gpionum, gpio::direction::OUTPUT);
self.spi.set_clk_rate(200000);
}
fn write_data(&self, data: &[u8]) {
self.spi.configure(
work_mode::MODE0,
frame_format::STANDARD,
8,
0,
0,
0,
0,
aitm::STANDARD,
tmod::TRANS,
);
self.spi.send_data(self.spi_cs, data);
}
fn read_data(&self, data: &mut [u8]) {
self.spi.configure(
work_mode::MODE0,
frame_format::STANDARD,
8,
0,
0,
0,
0,
aitm::STANDARD,
tmod::RECV,
);
self.spi.recv_data(self.spi_cs, data);
}
fn send_cmd(&self, cmd: CMD, arg: u32, crc: u8) {
self.CS_LOW();
self.write_data(&[
((cmd as u8) | 0x40),
(arg >> 24) as u8,
((arg >> 16) & 0xff) as u8,
((arg >> 8) & 0xff) as u8,
(arg & 0xff) as u8,
crc,
]);
}
fn end_cmd(&self) {
self.CS_HIGH();
self.write_data(&[0xff]);
}
fn get_response(&self) -> u8 {
let result = &mut [0u8];
let mut timeout = 0x0FFF;
while timeout != 0 {
self.read_data(result);
if result[0] != 0xFF {
return result[0];
}
timeout -= 1;
}
return 0xFF;
}
fn get_dataresponse(&self) -> u8 {
let response = &mut [0u8];
self.read_data(response);
response[0] &= 0x1F;
if response[0] != 0x05 {
return 0xFF;
}
self.read_data(response);
while response[0] == 0 {
self.read_data(response);
}
return 0;
}
fn get_csdregister(&self) -> Result<SDCardCSD, ()> {
let mut csd_tab = [0u8; 18];
self.send_cmd(CMD::CMD9, 0, 0);
if self.get_response() != 0x00 {
self.end_cmd();
return Err(());
}
if self.get_response() != SD_START_DATA_SINGLE_BLOCK_READ {
self.end_cmd();
return Err(());
}
self.read_data(&mut csd_tab);
self.end_cmd();
return Ok(SDCardCSD {
CSDStruct: (csd_tab[0] & 0xC0) >> 6,
SysSpecVersion: (csd_tab[0] & 0x3C) >> 2,
Reserved1: csd_tab[0] & 0x03,
TAAC: csd_tab[1],
NSAC: csd_tab[2],
MaxBusClkFrec: csd_tab[3],
CardComdClasses: (u16::from(csd_tab[4]) << 4) | ((u16::from(csd_tab[5]) & 0xF0) >> 4),
RdBlockLen: csd_tab[5] & 0x0F,
PartBlockRead: (csd_tab[6] & 0x80) >> 7,
WrBlockMisalign: (csd_tab[6] & 0x40) >> 6,
RdBlockMisalign: (csd_tab[6] & 0x20) >> 5,
DSRImpl: (csd_tab[6] & 0x10) >> 4,
Reserved2: 0,
DeviceSize: ((u32::from(csd_tab[7]) & 0x3F) << 16)
| (u32::from(csd_tab[8]) << 8)
| u32::from(csd_tab[9]),
EraseGrSize: (csd_tab[10] & 0x40) >> 6,
EraseGrMul: ((csd_tab[10] & 0x3F) << 1) | ((csd_tab[11] & 0x80) >> 7),
WrProtectGrSize: (csd_tab[11] & 0x7F),
WrProtectGrEnable: (csd_tab[12] & 0x80) >> 7,
ManDeflECC: (csd_tab[12] & 0x60) >> 5,
WrSpeedFact: (csd_tab[12] & 0x1C) >> 2,
MaxWrBlockLen: ((csd_tab[12] & 0x03) << 2) | ((csd_tab[13] & 0xC0) >> 6),
WriteBlockPaPartial: (csd_tab[13] & 0x20) >> 5,
Reserved3: 0,
ContentProtectAppli: (csd_tab[13] & 0x01),
FileFormatGroup: (csd_tab[14] & 0x80) >> 7,
CopyFlag: (csd_tab[14] & 0x40) >> 6,
PermWrProtect: (csd_tab[14] & 0x20) >> 5,
TempWrProtect: (csd_tab[14] & 0x10) >> 4,
FileFormat: (csd_tab[14] & 0x0C) >> 2,
ECC: (csd_tab[14] & 0x03),
CSD_CRC: (csd_tab[15] & 0xFE) >> 1,
Reserved4: 1,
});
}
fn get_cidregister(&self) -> Result<SDCardCID, ()> {
let mut cid_tab = [0u8; 18];
self.send_cmd(CMD::CMD10, 0, 0);
if self.get_response() != 0x00 {
self.end_cmd();
return Err(());
}
if self.get_response() != SD_START_DATA_SINGLE_BLOCK_READ {
self.end_cmd();
return Err(());
}
self.read_data(&mut cid_tab);
self.end_cmd();
return Ok(SDCardCID {
ManufacturerID: cid_tab[0],
OEM_AppliID: (u16::from(cid_tab[1]) << 8) | u16::from(cid_tab[2]),
ProdName1: (u32::from(cid_tab[3]) << 24)
| (u32::from(cid_tab[4]) << 16)
| (u32::from(cid_tab[5]) << 8)
| u32::from(cid_tab[6]),
ProdName2: cid_tab[7],
ProdRev: cid_tab[8],
ProdSN: (u32::from(cid_tab[9]) << 24)
| (u32::from(cid_tab[10]) << 16)
| (u32::from(cid_tab[11]) << 8)
| u32::from(cid_tab[12]),
Reserved1: (cid_tab[13] & 0xF0) >> 4,
ManufactDate: ((u16::from(cid_tab[13]) & 0x0F) << 8) | u16::from(cid_tab[14]),
CID_CRC: (cid_tab[15] & 0xFE) >> 1,
Reserved2: 1,
});
}
fn get_cardinfo(&self) -> Result<SDCardInfo, ()> {
let mut info = SDCardInfo {
SD_csd: self.get_csdregister()?,
SD_cid: self.get_cidregister()?,
CardCapacity: 0,
CardBlockSize: 0,
};
info.CardBlockSize = 1 << u64::from(info.SD_csd.RdBlockLen);
info.CardCapacity = (u64::from(info.SD_csd.DeviceSize) + 1) * 1024 * info.CardBlockSize;
Ok(info)
}
pub fn init(&self) -> Result<SDCardInfo, InitError> {
self.lowlevel_init();
self.CS_HIGH();
self.write_data(&[0xff; 10]);
self.send_cmd(CMD::CMD0, 0, 0x95);
let result = self.get_response();
self.end_cmd();
if result != 0x01 {
return Err(InitError::CMDFailed(CMD::CMD0, result));
}
self.send_cmd(CMD::CMD8, 0x01AA, 0x87);
let result = self.get_response();
let mut frame = [0u8; 4];
self.read_data(&mut frame);
self.end_cmd();
if result != 0x01 {
return Err(InitError::CMDFailed(CMD::CMD8, result));
}
let mut index = 255;
while index != 0 {
self.send_cmd(CMD::CMD55, 0, 0);
let result = self.get_response();
self.end_cmd();
if result != 0x01 {
return Err(InitError::CMDFailed(CMD::CMD55, result));
}
self.send_cmd(CMD::ACMD41, 0x40000000, 0);
let result = self.get_response();
self.end_cmd();
if result == 0x00 {
break;
}
index -= 1;
}
if index == 0 {
return Err(InitError::CMDFailed(CMD::ACMD41, result));
}
index = 255;
let mut frame = [0u8; 4];
while index != 0 {
self.send_cmd(CMD::CMD58, 0, 1);
let result = self.get_response();
self.read_data(&mut frame);
self.end_cmd();
if result == 0 {
break;
}
index -= 1;
}
if index == 0 {
return Err(InitError::CMDFailed(CMD::CMD58, result));
}
if (frame[0] & 0x40) == 0 {
return Err(InitError::CardCapacityStatusNotSet(frame));
}
self.HIGH_SPEED_ENABLE();
self.get_cardinfo()
.map_err(|_| InitError::CannotGetCardInfo)
}
pub fn read_sector(&self, data_buf: &mut [u8], sector: u32) -> Result<(), ()> {
assert!(data_buf.len() >= SEC_LEN && (data_buf.len() % SEC_LEN) == 0);
let flag = if data_buf.len() == SEC_LEN {
self.send_cmd(CMD::CMD17, sector, 0);
false
} else {
self.send_cmd(CMD::CMD18, sector, 0);
true
};
if self.get_response() != 0x00 {
self.end_cmd();
return Err(());
}
let mut error = false;
let mut tmp_chunk = [0u8; SEC_LEN];
for chunk in data_buf.chunks_mut(SEC_LEN) {
if self.get_response() != SD_START_DATA_SINGLE_BLOCK_READ {
error = true;
break;
}
self.read_data(&mut tmp_chunk);
for (a, b) in chunk.iter_mut().zip( tmp_chunk.iter()) {
*a = *b;
}
let mut frame = [0u8; 2];
self.read_data(&mut frame);
}
self.end_cmd();
if flag {
self.send_cmd(CMD::CMD12, 0, 0);
self.get_response();
self.end_cmd();
self.end_cmd();
}
if error {
Err(())
} else {
Ok(())
}
}
pub fn write_sector(&self, data_buf: &[u8], sector: u32) -> Result<(), ()> {
assert!(data_buf.len() >= SEC_LEN && (data_buf.len() % SEC_LEN) == 0);
let mut frame = [0xff, 0x00];
if data_buf.len() == SEC_LEN {
frame[1] = SD_START_DATA_SINGLE_BLOCK_WRITE;
self.send_cmd(CMD::CMD24, sector, 0);
} else {
frame[1] = SD_START_DATA_MULTIPLE_BLOCK_WRITE;
self.send_cmd(
CMD::ACMD23,
(data_buf.len() / SEC_LEN).try_into().unwrap(),
0,
);
self.get_response();
self.end_cmd();
self.send_cmd(CMD::CMD25, sector, 0);
}
if self.get_response() != 0x00 {
self.end_cmd();
return Err(());
}
let mut tmp_chunk = [0u8; SEC_LEN];
for chunk in data_buf.chunks(SEC_LEN) {
self.write_data(&frame);
for (a, &b) in tmp_chunk.iter_mut().zip(chunk.iter()) {
*a = b;
}
self.write_data(&mut tmp_chunk);
self.write_data(&[0xff, 0xff]);
if self.get_dataresponse() != 0x00 {
self.end_cmd();
return Err(());
}
}
self.end_cmd();
self.end_cmd();
Ok(())
}
}
const SD_CS_GPIONUM: u8 = 7;
const SD_CS: u32 = 3;
fn io_init() {
fpioa::set_function(io::SPI0_SCLK, fpioa::function::SPI0_SCLK);
fpioa::set_function(io::SPI0_MOSI, fpioa::function::SPI0_D0);
fpioa::set_function(io::SPI0_MISO, fpioa::function::SPI0_D1);
fpioa::set_function(io::SPI0_CS0, fpioa::function::gpiohs(SD_CS_GPIONUM));
fpioa::set_io_pull(io::SPI0_CS0, fpioa::pull::DOWN);
}
lazy_static! {
static ref PERIPHERALS: Mutex<Peripherals> = Mutex::new(Peripherals::take().unwrap());
}
fn init_sdcard() -> SDCard<SPIImpl<SPI0>> {
usleep(100000);
let peripherals = unsafe { Peripherals::steal() };
sysctl::pll_set_freq(sysctl::pll::PLL0, 800_000_000).unwrap();
sysctl::pll_set_freq(sysctl::pll::PLL1, 400_000_000).unwrap();
sysctl::pll_set_freq(sysctl::pll::PLL2, 45_158_400).unwrap();
let clocks = k210_hal::clock::Clocks::new();
peripherals.UARTHS.configure(115_200.bps(), &clocks);
io_init();
let spi = peripherals.SPI0.constrain();
let sd = SDCard::new(spi, SD_CS, SD_CS_GPIONUM);
let info = sd.init().unwrap();
let num_sectors = info.CardCapacity / 512;
assert!(num_sectors > 0);
println!("init sdcard!");
sd
}
pub struct SDCardWrapper(Mutex<SDCard<SPIImpl<SPI0>>>);
impl SDCardWrapper {
pub fn new() -> Self {
Self(Mutex::new(init_sdcard()))
}
}
impl BlockDevice for SDCardWrapper {
fn read_block(&self, block_id: usize, buf: &mut [u8]) {
self.0.lock().read_sector(buf, block_id as u32).unwrap();
}
fn write_block(&self, block_id: usize, buf: &[u8]) {
self.0.lock().write_sector(buf, block_id as u32).unwrap();
}
}