forked from M-Labs/zynq-rs
134 lines
3.3 KiB
Rust
134 lines
3.3 KiB
Rust
use super::regs;
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const APP_CMD_PREFIX: u8 = 0x80;
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#[allow(unused)]
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pub mod args {
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pub const CMD8_VOL_PATTERN: u32 = 0x1AA;
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pub const RESPOCR_READY: u32 = 0x80000000;
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pub const ACMD41_HCS: u32 = 0x40000000;
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pub const ACMD41_3V3: u32 = 0x00300000;
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pub const CMD1_HIGH_VOL: u32 = 0x00FF8000;
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pub const OCR_S18: u32 = 1 << 24;
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}
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#[allow(unused)]
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#[repr(u8)]
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#[derive(Copy, Clone, PartialEq, Debug)]
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pub enum SdCmd {
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CMD0 = 0x00,
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CMD1 = 0x01,
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CMD2 = 0x02,
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CMD3 = 0x03,
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CMD4 = 0x04,
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CMD5 = 0x05,
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CMD6 = 0x06,
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ACMD6 = APP_CMD_PREFIX + 0x06,
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CMD7 = 0x07,
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CMD8 = 0x08,
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CMD9 = 0x09,
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CMD10 = 0x0A,
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CMD11 = 0x0B,
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CMD12 = 0x0C,
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ACMD13 = APP_CMD_PREFIX + 0x0D,
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CMD16 = 0x10,
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CMD17 = 0x11,
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CMD18 = 0x12,
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CMD19 = 0x13,
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CMD21 = 0x15,
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CMD23 = 0x17,
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ACMD23 = APP_CMD_PREFIX + 0x17,
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CMD24 = 0x18,
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CMD25 = 0x19,
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CMD41 = 0x29,
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ACMD41 = APP_CMD_PREFIX + 0x29,
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ACMD42 = APP_CMD_PREFIX + 0x2A,
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ACMD51 = APP_CMD_PREFIX + 0x33,
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CMD52 = 0x34,
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CMD55 = 0x37,
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CMD58 = 0x3A,
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}
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pub fn require_dat(cmd: SdCmd, is_sd_card: bool) -> bool {
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use SdCmd::*;
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match cmd {
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CMD6 => is_sd_card,
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CMD8 => !is_sd_card,
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ACMD13 | CMD17 | CMD18 | CMD19 | CMD21 | CMD23 | ACMD23 | CMD24 | CMD25 | ACMD51 => true,
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_ => false,
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}
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}
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type CmdReg = regs::transfer_mode_command::Write;
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fn resp_r1(w: CmdReg) -> CmdReg {
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w.response_type_select(regs::ResponseTypeSelect::Length48)
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.crc_check_en(true)
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.index_check_en(true)
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}
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fn resp_r1b(w: CmdReg) -> CmdReg {
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w.response_type_select(regs::ResponseTypeSelect::Legnth48Check)
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.crc_check_en(true)
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.index_check_en(true)
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}
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fn resp_r2(w: CmdReg) -> CmdReg {
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w.response_type_select(regs::ResponseTypeSelect::Length136)
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.crc_check_en(true)
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}
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fn resp_r3(w: CmdReg) -> CmdReg {
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w.response_type_select(regs::ResponseTypeSelect::Length48)
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}
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fn resp_r6(w: CmdReg) -> CmdReg {
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w.response_type_select(regs::ResponseTypeSelect::Legnth48Check)
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.crc_check_en(true)
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.index_check_en(true)
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}
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pub fn set_cmd_reg(cmd: SdCmd, is_sd_card: bool, w: CmdReg) -> CmdReg {
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use SdCmd::*;
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let w = w.command_index(cmd as u8 & 0x3F);
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match cmd {
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CMD1 => resp_r3(w),
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CMD2 => resp_r2(w),
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CMD3 => {
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if is_sd_card {
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resp_r6(w)
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} else {
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resp_r1(w)
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}
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}
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CMD5 => resp_r1b(w),
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CMD6 => {
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if is_sd_card {
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resp_r1(w).data_present_select(true)
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} else {
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resp_r1b(w)
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}
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}
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ACMD6 => resp_r1(w),
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CMD7 => resp_r1(w),
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CMD8 => {
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if is_sd_card {
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resp_r1(w)
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} else {
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resp_r1(w).data_present_select(true)
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}
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}
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CMD9 => resp_r2(w),
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CMD10 | CMD11 | CMD12 => resp_r1(w),
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ACMD13 => resp_r1(w).data_present_select(true),
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CMD16 => resp_r1(w),
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CMD17 | CMD18 | CMD19 | CMD21 | CMD23 | ACMD23 | CMD24 | CMD25 => {
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resp_r1(w).data_present_select(true)
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}
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ACMD41 => resp_r3(w),
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ACMD42 => resp_r1(w),
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ACMD51 => resp_r1(w).data_present_select(true),
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CMD52 | CMD55 => resp_r1(w),
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_ => w,
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}
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}
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