# This file is Copyright (c) 2017 Florent Kermarrec <florent@enjoy-digital.fr>
# License: BSD

SD_OK         = 0
SD_CRCERROR   = 1
SD_TIMEOUT    = 2
SD_WRITEERROR = 3

SD_SWITCH_CHECK  = 0
SD_SWITCH_SWITCH = 1

SD_SPEED_SDR12  = 0
SD_SPEED_SDR25  = 1
SD_SPEED_SDR50  = 2
SD_SPEED_SDR104 = 3
SD_SPEED_DDR50  = 4

SD_DRIVER_STRENGTH_B = 0
SD_DRIVER_STRENGTH_A = 1
SD_DRIVER_STRENGTH_C = 2
SD_DRIVER_STRENGTH_D = 3

SD_GROUP_ACCESSMODE     = 0
SD_GROUP_COMMANDSYSTEM  = 1
SD_GROUP_DRIVERSTRENGTH = 2
SD_GROUP_POWERLIMIT     = 3

SDCARD_STREAM_STATUS_OK           = 0b000
SDCARD_STREAM_STATUS_TIMEOUT      = 0b001
SDCARD_STREAM_STATUS_DATAACCEPTED = 0b010
SDCARD_STREAM_STATUS_CRCERROR     = 0b101
SDCARD_STREAM_STATUS_WRITEERROR   = 0b110

SDCARD_CTRL_DATA_TRANSFER_NONE  = 0
SDCARD_CTRL_DATA_TRANSFER_READ  = 1
SDCARD_CTRL_DATA_TRANSFER_WRITE = 2

SDCARD_CTRL_RESPONSE_NONE  = 0
SDCARD_CTRL_RESPONSE_SHORT = 1
SDCARD_CTRL_RESPONSE_LONG  = 2

SDCARD_TUNING_BLOCK = [
    0xff0fff00, 0xffccc3cc, 0xc33cccff, 0xfefffeef,
    0xffdfffdd, 0xfffbfffb, 0xbfff7fff, 0x77f7bdef,
    0xfff0fff0, 0x0ffccc3c, 0xcc33cccf, 0xffefffee,
    0xfffdfffd, 0xdfffbfff, 0xbbfff7ff, 0xf77f7bde,
]