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-rw-r--r--decoders/rtc8564/pd.py59
1 files changed, 46 insertions, 13 deletions
diff --git a/decoders/rtc8564/pd.py b/decoders/rtc8564/pd.py
index ed55d4c..1961c66 100644
--- a/decoders/rtc8564/pd.py
+++ b/decoders/rtc8564/pd.py
@@ -52,11 +52,15 @@ class Decoder(srd.Decoder):
['reg-0x08', 'Register 0x08'],
['read', 'Read date/time'],
['write', 'Write date/time'],
- ['bits', 'Bits'],
+ ['bit-reserved', 'Reserved bit'],
+ ['bit-vl', 'VL bit'],
+ ['bit-century', 'Century bit'],
+ ['reg-read', 'Register read'],
+ ['reg-write', 'Register write'],
]
annotation_rows = (
- ('bits', 'Bits', (11,)),
- ('regs', 'Registers', tuple(range(0, 8 + 1))),
+ ('bits', 'Bits', tuple(range(0, 8 + 1)) + (11, 12, 13)),
+ ('regs', 'Register access', (14, 15)),
('date-time', 'Date/time', (9, 10)),
)
@@ -69,6 +73,7 @@ class Decoder(srd.Decoder):
self.weekdays = -1
self.months = -1
self.years = -1
+ self.bits = []
def start(self):
# self.out_python = self.register(srd.OUTPUT_PYTHON)
@@ -77,6 +82,13 @@ class Decoder(srd.Decoder):
def putx(self, data):
self.put(self.ss, self.es, self.out_ann, data)
+ def putd(self, bit1, bit2, data):
+ self.put(self.bits[bit1][1], self.bits[bit2][2], self.out_ann, data)
+
+ def putr(self, bit):
+ self.put(self.bits[bit][1], self.bits[bit][2], self.out_ann,
+ [11, ['Reserved bit', 'Reserved', 'Rsvd', 'R']])
+
def handle_reg_0x00(self, b): # Control register 1
pass
@@ -106,33 +118,42 @@ class Decoder(srd.Decoder):
self.putx([1, [ann]])
def handle_reg_0x02(self, b): # Seconds / Voltage-low bit
- s = self.seconds = bcd2int(b & 0x7f)
- self.putx([2, ['Second: %d' % s, 'Sec: %d' % s, 'S: %d' % s]])
vl = 1 if (b & (1 << 7)) else 0
- self.putx([11, ['Voltage low: %d' % vl, 'Volt low: %d' % vl,
+ self.putd(7, 7, [12, ['Voltage low: %d' % vl, 'Volt. low: %d' % vl,
'VL: %d' % vl]])
+ s = self.seconds = bcd2int(b & 0x7f)
+ self.putd(6, 0, [2, ['Second: %d' % s, 'Sec: %d' % s, 'S: %d' % s]])
def handle_reg_0x03(self, b): # Minutes
+ self.putr(7)
m = self.minutes = bcd2int(b & 0x7f)
- self.putx([3, ['Minute: %d' % m, 'Min: %d' % m, 'M: %d' % m]])
+ self.putd(6, 0, [3, ['Minute: %d' % m, 'Min: %d' % m, 'M: %d' % m]])
def handle_reg_0x04(self, b): # Hours
+ self.putr(7)
+ self.putr(6)
h = self.hours = bcd2int(b & 0x3f)
- self.putx([4, ['Hour: %d' % h, 'H: %d' % h]])
+ self.putd(5, 0, [4, ['Hour: %d' % h, 'H: %d' % h]])
def handle_reg_0x05(self, b): # Days
+ self.putr(7)
+ self.putr(6)
d = self.days = bcd2int(b & 0x3f)
- self.putx([5, ['Day: %d' % d, 'D: %d' % d]])
+ self.putd(5, 0, [5, ['Day: %d' % d, 'D: %d' % d]])
def handle_reg_0x06(self, b): # Weekdays
+ for i in (7, 6, 5, 4, 3):
+ self.putr(i)
w = self.weekdays = bcd2int(b & 0x07)
- self.putx([6, ['Weekday: %d' % w, 'WD: %d' % w]])
+ self.putd(2, 0, [6, ['Weekday: %d' % w, 'WD: %d' % w]])
def handle_reg_0x07(self, b): # Months / century bit
- m = self.months = bcd2int(b & 0x1f)
- self.putx([7, ['Month: %d' % m, 'Mon: %d' % m]])
c = 1 if (b & (1 << 7)) else 0
- self.putx([11, ['Century: %d' % c, 'Cent: %d' % c, 'C: %d' % c]])
+ self.putd(7, 7, [13, ['Century: %d' % c, 'Cent: %d' % c, 'C: %d' % c]])
+ self.putr(6)
+ self.putr(5)
+ m = self.months = bcd2int(b & 0x1f)
+ self.putd(4, 0, [7, ['Month: %d' % m, 'Mon: %d' % m]])
def handle_reg_0x08(self, b): # Years
y = self.years = bcd2int(b & 0xff)
@@ -162,6 +183,12 @@ class Decoder(srd.Decoder):
def decode(self, ss, es, data):
cmd, databyte = data
+ # Collect the 'BITS' packet, then return. The next packet is
+ # guaranteed to belong to these bits we just stored.
+ if cmd == 'BITS':
+ self.bits = databyte
+ return
+
# Store the start/end samples of this I²C packet.
self.ss, self.es = ss, es
@@ -191,6 +218,9 @@ class Decoder(srd.Decoder):
return
# Otherwise: Get data bytes until a STOP condition occurs.
if cmd == 'DATA WRITE':
+ r, s = self.reg, '%02X: %02X' % (self.reg, databyte)
+ self.putx([15, ['Write register %s' % s, 'Write reg %s' % s,
+ 'WR %s' % s, 'WR', 'W']])
handle_reg = getattr(self, 'handle_reg_0x%02x' % self.reg)
handle_reg(databyte)
self.reg += 1
@@ -215,6 +245,9 @@ class Decoder(srd.Decoder):
pass # TODO
elif self.state == 'READ RTC REGS2':
if cmd == 'DATA READ':
+ r, s = self.reg, '%02X: %02X' % (self.reg, databyte)
+ self.putx([15, ['Read register %s' % s, 'Read reg %s' % s,
+ 'RR %s' % s, 'RR', 'R']])
handle_reg = getattr(self, 'handle_reg_0x%02x' % self.reg)
handle_reg(databyte)
self.reg += 1