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display: Make hd44780 glyphs configurable

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Allow the 20x4 hd44780 screen glyphs to be customizable from the
config file.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2020-06-08 22:04:24 -04:00
parent 1a7e4e51b3
commit 7713986ae1
6 changed files with 179 additions and 115 deletions
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105
klippy/extras/display/hd44780.py
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@@ -8,6 +8,8 @@ import logging
BACKGROUND_PRIORITY_CLOCK = 0x7fffffff00000000
TextGlyphs = { 'right_arrow': '\x7e' }
HD44780_DELAY = .000040
class HD44780:
@@ -27,6 +29,7 @@ class HD44780:
self.oid = self.mcu.create_oid()
self.mcu.register_config_callback(self.build_config)
self.send_data_cmd = self.send_cmds_cmd = None
self.icons = {}
# framebuffers
self.text_framebuffers = [bytearray(' '*40), bytearray(' '*40)]
self.glyph_framebuffer = bytearray(64)
@@ -85,10 +88,6 @@ class HD44780:
for i, cmds in enumerate(init):
minclock = self.mcu.print_time_to_clock(print_time + i * .100)
self.send_cmds_cmd.send([self.oid, cmds], minclock=minclock)
# Add custom fonts
self.glyph_framebuffer[:len(HD44780_chars)] = HD44780_chars
for i in range(len(self.glyph_framebuffer)):
self.all_framebuffers[2][1][i] = self.glyph_framebuffer[i] ^ 1
self.flush()
def write_text(self, x, y, data):
if x + len(data) > 20:
@@ -96,8 +95,17 @@ class HD44780:
pos = x + ((y & 0x02) >> 1) * 20
self.text_framebuffers[y & 1][pos:pos+len(data)] = data
def set_glyphs(self, glyphs):
pass
for glyph_name, glyph_data in glyphs.items():
data = glyph_data.get('icon5x8')
if data is not None:
self.icons[glyph_name] = data
def write_glyph(self, x, y, glyph_name):
data = self.icons.get(glyph_name)
if data is not None:
slot, bits = data
self.write_text(x, y, chr(slot))
self.glyph_framebuffer[slot * 8:(slot + 1) * 8] = bits
return 1
char = TextGlyphs.get(glyph_name)
if char is not None:
# Draw character
@@ -112,90 +120,3 @@ class HD44780:
self.text_framebuffers[1][:] = spaces
def get_dimensions(self):
return (20, 4)
HD44780_chars = [
# Extruder (a thermometer)
0b00100,
0b01010,
0b01010,
0b01010,
0b01010,
0b10001,
0b10001,
0b01110,
# Heated bed
0b00000,
0b11111,
0b10101,
0b10001,
0b10101,
0b11111,
0b00000,
0b00000,
# Feed rate
0b11100,
0b10000,
0b11000,
0b10111,
0b00101,
0b00110,
0b00101,
0b00000,
# Clock
0b00000,
0b01110,
0b10011,
0b10101,
0b10001,
0b01110,
0b00000,
0b00000,
# Degrees
0b01100,
0b10010,
0b10010,
0b01100,
0b00000,
0b00000,
0b00000,
0b00000,
# USB
0b01110,
0b01110,
0b01110,
0b11111,
0b11111,
0b11111,
0b00100,
0b00100,
# SD
0b00000,
0b00111,
0b01111,
0b11111,
0b11111,
0b11111,
0b11111,
0b00000,
# Fan
0b00000,
0b10011,
0b11010,
0b00100,
0b01011,
0b11001,
0b00000,
0b00000,
]
TextGlyphs = {
'right_arrow': '\x7e',
'extruder': '\x00',
'bed': '\x01', 'bed_heat1': '\x01', 'bed_heat2': '\x01',
'feedrate': '\x02',
'clock': '\x03',
'degrees': '\x04',
'usb': '\x05',
'sd': '\x06',
'fan1': '\x07', 'fan2': '\x07',
}