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ada-git-code

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Info.Card_Type := High_Capacity_SD_Card;
end if;
if (Rsp and SD_OCR_Power_Up) = 0 then
Status := Error;
else
Status := OK;
exit;
end if;
end loop;
if Status = Command_Timeout_Error
and then Info.Card_Type = Multimedia_Card
then
for I in 1 .. 5 loop
This.Delay_Milliseconds (200);
-- CMD1: SEND_OP_COND query voltage
Send_Cmd (This, Cmd_Desc (Send_Op_Cond), 16#00ff_8000#, Status);
if Status /= OK then
return;
end if;
Read_Rsp48 (This, Rsp);
if (Rsp and SD_OCR_Power_Up) = 0 then
Status := Error;
else
if (Rsp and 16#00ff_8000#) /= 16#00ff_8000# then
Status := Error;
return;
end if;
Status := OK;
exit;
end if;
end loop;
end if;
if Status /= OK then
return;
end if;
-- TODO: Switch voltage
-- CMD2: ALL_SEND_CID (136 bits)
Send_Cmd (This, All_Send_CID, 0, Status);
if Status /= OK then
return;
end if;
Read_Rsp136 (This, W0, W1, W2, W3);
Convert_Card_Identification_Data_Register (W0, W1, W2, W3, Info.SD_CID);
-- CMD3: SEND_RELATIVE_ADDR
case Info.Card_Type is
when Multimedia_Card =>
Rca := 16#01_0000#;
when others =>
Rca := 0;
end case;
Send_Cmd (This, Send_Relative_Addr, Rca, Status);
if Status /= OK then
return;
end if;
case Info.Card_Type is
when Multimedia_Card =>
null;
when others =>
Read_Rsp48 (This, Rsp);
Rca := Rsp and 16#ffff_0000#;
if (Rsp and 16#e100#) /= 16#0100# then
return;
end if;
end case;
Info.RCA := UInt16 (Shift_Right (Rca, 16));
-- Switch to 25Mhz
case Info.Card_Type is
when Multimedia_Card =>
Set_Clock (This, Get_Transfer_Rate (Info.SD_CSD));
when STD_Capacity_SD_Card_V1_1
| STD_Capacity_SD_Card_v2_0
| High_Capacity_SD_Card =>
Set_Clock (This, 25_000_000);
when others =>
-- Not yet handled
raise Program_Error;
end case;
-- CMD10: SEND_CID (136 bits)
Send_Cmd (This, Send_CID, Rca, Status);
if Status /= OK then
return;
end if;
-- CMD9: SEND_CSD
Send_Cmd (This, Send_CSD, Rca, Status);
if Status /= OK then