Add support for spi-mode in cmdline (#273)

* feat, #272: Add support for spi-mode in cmdline.

* Fix tests

luma/core/cmdline.py

@@ -152,6 +152,7 @@ def spi(self):
  device=self.opts.spi_device,
  bus_speed_hz=self.opts.spi_bus_speed,
  transfer_size=self.opts.spi_transfer_size,
+ spi_mode=self.opts.spi_mode,
  reset_hold_time=self.opts.gpio_reset_hold_time,
  reset_release_time=self.opts.gpio_reset_release_time,
  gpio_DC=self.opts.gpio_data_command,
@@ -166,6 +167,7 @@ def gpio_cs_spi(self):
  bus_speed_hz=self.opts.spi_bus_speed,
  cs_high=self.opts.spi_cs_high,
  transfer_size=self.opts.spi_transfer_size,
+ spi_mode=self.opts.spi_mode,
  reset_hold_time=self.opts.gpio_reset_hold_time,
  reset_release_time=self.opts.gpio_reset_release_time,
  gpio_DC=self.opts.gpio_data_command,
@@ -305,6 +307,7 @@ def create_parser(description):
  spi_group.add_argument('--spi-device', type=int, default=0, help='SPI device')
  spi_group.add_argument('--spi-bus-speed', type=int, default=8000000, help='SPI max bus speed (Hz)')
  spi_group.add_argument('--spi-transfer-size', type=int, default=4096, help='SPI bus max transfer unit (bytes)')
+ spi_group.add_argument('--spi-mode', type=int, default=None, help='SPI mode (0-3)')
  spi_group.add_argument('--spi-cs-high', type=bool, default=False, help='SPI chip select is high (gpio_cs_spi driver only)')
 
  ftdi_group = parser.add_argument_group('FTDI')

tests/test_cmdline.py

@@ -24,6 +24,7 @@
 
 class test_spi_opts(object):
  spi_port = 0
+ spi_mode = 0
  spi_device = 0
  spi_bus_speed = 8000000
  spi_transfer_size = 4096