optional_probes = []
options = {}
annotations = ann_cmd_list() + [
- ['cmd-token', 'Command token'],
+ ['cmd-desc', 'Command description'],
['r1', 'R1 reply'],
['r1b', 'R1B reply'],
['r2', 'R2 reply'],
['r3', 'R3 reply'],
['r7', 'R7 reply'],
['bits', 'Bits'],
+ ['bit-warnings', 'Bit warnings'],
]
annotation_rows = (
- ('bits', 'Bits', (70,)),
+ ('bits', 'Bits', (70, 71)),
('cmd-reply', 'Commands/replies',
tuple(range(0, 63 + 1)) + tuple(range(65, 69 + 1))),
('cmd-token', 'Command tokens', (64,)),
self.is_acmd = False # Indicates CMD vs. ACMD
self.blocklen = 0
self.read_buf = []
+ self.cmd_str = ''
def start(self):
# self.out_python = self.register(srd.OUTPUT_PYTHON)
def putx(self, data):
self.put(self.cmd_ss, self.cmd_es, self.out_ann, data)
+ def putc(self, cmd, desc):
+ self.putx([cmd, ['%s: %s' % (self.cmd_str, desc)]])
+
def putb(self, data):
self.put(self.bit_ss, self.bit_es, self.out_ann, data)
self.cmd_token.append(mosi)
self.cmd_token_bits.append(self.mosi_bits)
- # TODO: Record MISO too?
# All command tokens are 6 bytes long.
if len(self.cmd_token) < 6:
self.cmd_es = self.es
- # Received all 6 bytes of the command token. Now decode it.
-
t = self.cmd_token
# CMD or ACMD?
s = 'ACMD' if self.is_acmd else 'CMD'
- # TODO
- self.putx([64, [s + ': %02x %02x %02x %02x %02x %02x' % tuple(t)]])
def tb(byte, bit):
return self.cmd_token_bits[5 - byte][7 - bit]
# Bits[47:47]: Start bit (always 0)
bit, self.bit_ss, self.bit_es = tb(5, 7)[0], tb(5, 7)[1], tb(5, 7)[2]
- self.putb([70, ['Start bit: %d' % bit]])
- if bit != 0:
- # TODO
- self.putb([1, ['Warning: Start bit != 0']])
+ if bit == 0:
+ self.putb([70, ['Start bit: %d' % bit]])
+ else:
+ self.putb([71, ['Start bit: %s (Warning: Must be 0!)' % bit]])
# Bits[46:46]: Transmitter bit (1 == host)
bit, self.bit_ss, self.bit_es = tb(5, 6)[0], tb(5, 6)[1], tb(5, 6)[2]
- self.putb([70, ['Transmitter bit: %d' % bit]])
- if bit != 1:
- # TODO
- self.putb([1, ['Warning: Transmitter bit != 1']])
+ if bit == 1:
+ self.putb([70, ['Transmitter bit: %d' % bit]])
+ else:
+ self.putb([71, ['Transmitter bit: %d (Warning: Must be 1!)' % bit]])
# Bits[45:40]: Command index (BCD; valid: 0-63)
- cmd = self.cmd_index = t[5] & 0x3f
- # TODO
+ cmd = self.cmd_index = t[0] & 0x3f
self.bit_ss, self.bit_es = tb(5, 5)[1], tb(5, 0)[2]
self.putb([70, ['Command: %s%d (%s)' % (s, cmd, cmd_name[cmd])]])
self.arg = (t[1] << 24) | (t[2] << 16) | (t[3] << 8) | t[4]
self.bit_ss, self.bit_es = tb(4, 7)[1], tb(1, 0)[2]
self.putb([70, ['Argument: 0x%04x' % self.arg]])
- # TODO: Sanity check on argument? Must be per-cmd?
- # Bits[7:1]: CRC
- # TODO: Check CRC.
+ # Bits[7:1]: CRC7
+ # TODO: Check CRC7.
crc = t[5] >> 1
self.bit_ss, self.bit_es = tb(0, 7)[1], tb(0, 1)[2]
- self.putb([70, ['CRC: 0x%01x' % crc]])
+ self.putb([70, ['CRC7: 0x%01x' % crc]])
# Bits[0:0]: End bit (always 1)
bit, self.bit_ss, self.bit_es = tb(0, 0)[0], tb(0, 0)[1], tb(0, 0)[2]
self.putb([70, ['End bit: %d' % bit]])
- if bit != 1:
- # TODO
- self.putb([1, ['Warning: End bit != 1']])
+ if bit == 1:
+ self.putb([70, ['End bit: %d' % bit]])
+ else:
+ self.putb([71, ['End bit: %d (Warning: Must be 1!)' % bit]])
# Handle command.
if cmd in (0, 1, 9, 16, 17, 41, 49, 55, 59):
self.state = 'HANDLE CMD%d' % cmd
+ self.cmd_str = '%s%d (%s)' % (s, cmd, cmd_name[cmd])
+ else:
+ self.state = 'HANDLE CMD999'
+ a = '%s%d: %02x %02x %02x %02x %02x %02x' % ((s, cmd) + tuple(t))
+ self.putx([cmd, [a]])
# ...
if self.is_acmd and cmd != 55:
self.is_acmd = False
- self.cmd_token = []
- self.cmd_token_bits = []
-
- def handle_cmd0(self, ):
+ def handle_cmd0(self):
# CMD0: GO_IDLE_STATE
- # TODO
- self.putx([0, ['CMD0: Card reset / idle state']])
+ self.putc(0, 'Reset the SD card')
self.state = 'GET RESPONSE R1'
def handle_cmd1(self):
# CMD1: SEND_OP_COND
- # TODO
+ self.putc(1, 'Send HCS info and activate the card init process')
hcs = (self.arg & (1 << 30)) >> 30
- self.putb([1, ['HCS bit = %d' % hcs]])
+ self.bit_ss = self.cmd_token_bits[5 - 4][7 - 6][1]
+ self.bit_es = self.cmd_token_bits[5 - 4][7 - 6][2]
+ self.putb([70, ['HCS: %d' % hcs]])
self.state = 'GET RESPONSE R1'
def handle_cmd9(self):
# CMD9: SEND_CSD (128 bits / 16 bytes)
+ self.putc(9, 'Ask card to send its card specific data (CSD)')
if len(self.read_buf) == 0:
self.cmd_ss = self.ss
self.read_buf.append(self.miso)
def handle_cmd10(self):
# CMD10: SEND_CID (128 bits / 16 bytes)
+ self.putc(10, 'Ask card to send its card identification (CID)')
self.read_buf.append(self.miso)
if len(self.read_buf) < 16:
return
def handle_cmd16(self):
# CMD16: SET_BLOCKLEN
- self.blocklen = self.arg # TODO
+ self.blocklen = self.arg
# TODO: Sanity check on block length.
- self.putx([16, ['Block length: %d' % self.blocklen]])
+ self.putc(16, 'Set the block length to %d bytes' % self.blocklen)
self.state = 'GET RESPONSE R1'
def handle_cmd17(self):
# CMD17: READ_SINGLE_BLOCK
+ self.putc(17, 'Read a block from address 0x%04x' % self.arg)
if len(self.read_buf) == 0:
self.cmd_ss = self.ss
self.read_buf.append(self.miso)
- if len(self.read_buf) == 1:
- self.putx([0, ['Read block at address: 0x%04x' % self.arg]])
if len(self.read_buf) < self.blocklen + 2: # FIXME
return
self.cmd_es = self.es
def handle_cmd41(self):
# ACMD41: SD_SEND_OP_COND
+ self.putc(41, 'Send HCS info and activate the card init process')
self.state = 'GET RESPONSE R1'
def handle_cmd49(self):
def handle_cmd55(self):
# CMD55: APP_CMD
+ self.putc(55, 'Next command is an application-specific command')
self.is_acmd = True
self.state = 'GET RESPONSE R1'
# CMD59: CRC_ON_OFF
crc_on_off = self.arg & (1 << 0)
s = 'on' if crc_on_off == 1 else 'off'
- self.putb([59, ['SD card CRC option: %s' % s]])
+ self.putc(59, 'Turn the SD card CRC option %s' % s)
+ self.state = 'GET RESPONSE R1'
+
+ def handle_cmd999(self):
self.state = 'GET RESPONSE R1'
def handle_cid_register(self):
# The R1 response token format (1 byte).
# Sent by the card after every command except for SEND_STATUS.
- self.cmd_ss, self.cmd_es = self.ss, self.es
-
+ self.cmd_ss, self.cmd_es = self.miso_bits[0][1], self.miso_bits[7][2]
self.putx([65, ['R1: 0x%02x' % res]])
- # TODO: Configurable whether all bits are decoded.
+ def putbit(bit, data):
+ b = self.miso_bits[7 - bit]
+ self.bit_ss, self.bit_es = b[1], b[2]
+ self.putb([70, data])
- # 'In idle state' bit
+ # Bit 0: 'In idle state' bit
s = '' if (res & (1 << 0)) else 'not '
- self.putb([0, ['Card is %sin idle state' % s]])
+ putbit(0, ['Card is %sin idle state' % s])
- # 'Erase reset' bit
+ # Bit 1: 'Erase reset' bit
s = '' if (res & (1 << 1)) else 'not '
- self.putb([0, ['Erase sequence %scleared' % s]])
+ putbit(1, ['Erase sequence %scleared' % s])
- # 'Illegal command' bit
+ # Bit 2: 'Illegal command' bit
s = 'I' if (res & (1 << 2)) else 'No i'
- self.putb([0, ['%sllegal command detected' % s]])
+ putbit(2, ['%sllegal command detected' % s])
- # 'Communication CRC error' bit
+ # Bit 3: 'Communication CRC error' bit
s = 'failed' if (res & (1 << 3)) else 'was successful'
- self.putb([0, ['CRC check of last command %s' % s]])
+ putbit(3, ['CRC check of last command %s' % s])
- # 'Erase sequence error' bit
+ # Bit 4: 'Erase sequence error' bit
s = 'E' if (res & (1 << 4)) else 'No e'
- self.putb([0, ['%srror in the sequence of erase commands' % s]])
+ putbit(4, ['%srror in the sequence of erase commands' % s])
- # 'Address error' bit
+ # Bit 5: 'Address error' bit
s = 'M' if (res & (1 << 4)) else 'No m'
- self.putb([0, ['%sisaligned address used in command' % s]])
+ putbit(5, ['%sisaligned address used in command' % s])
- # 'Parameter error' bit
+ # Bit 6: 'Parameter error' bit
s = '' if (res & (1 << 4)) else 'not '
- self.putb([0, ['Command argument %soutside allowed range' % s]])
+ putbit(6, ['Command argument %soutside allowed range' % s])
+
+ # Bit 7: Always set to 0
+ putbit(7, ['Bit 7 (always 0)'])
self.state = 'IDLE'
s = 'handle_cmd%s' % self.state[10:].lower()
handle_cmd = getattr(self, s)
handle_cmd()
+ self.cmd_token = []
+ self.cmd_token_bits = []
elif self.state.startswith('GET RESPONSE'):
# Ignore stray 0xff bytes, some devices seem to send those!?
if miso == 0xff: # TODO?
projects / libsigrokdecode.git / blobdiff