Endpoint 0 OUT needs to NAK everything until the core signals that the
setup stage is complete.
Signed-off-by: Eric Callahan <arksine.code@gmail.com>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
A setup packet is only valid after receiving the "setup complete"
notification.
Signed-off-by: Eric Callahan <arksine.code@gmail.com>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The beagleboard TI kernel 4.14 and 4.19 contain a commit which change
the device names ("pwm: Create device class for pwm channels") from
pwmN to pwm-${chip}:N. This commit was never merged into the upstream
kernel.
Decrease the number of pwm channels to a more reasonable 16. Increase
the number of pwm chips to 8 since the replicape servo pwm outputs are
on pwmchip4.
Update replicape code to detect appropriate channel.
Signed-off-by: Janne Grunau <janne-gh@jannau.net>
There are reports that SKR mini boards have more stable ADC results
when running the ADC at a slower frequency.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Explicitly disable the SysTick interrupt and explicitly set the stack
pointer, as some bootloaders aren't handling this correctly.
Signed-off-by: Chris Lombardi <clearchris@hotmail.com>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This reverts commit a2c309a2b0.
The above commit is causing crashes on the stm32f103xb chip when spi
is in use. It's unclear what the cause of the regression is, but the
optimization isn't required so revert it until the root cause can be
determined.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Commit bd6c25c9 introduced a typo that caused the clock divisors to
not be set correctly on stm32f1.
Reported by @brianrjones69.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The host code always issues a get_config command immediately after
finalize_config, so there is no need to send the two config response
messages.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
In addition to spi3, spi1 and spi2 also have alternate pins. Add them as
spi1a and spi2a, similar to spi3.
Signed-off-by: Arne Jansen <arne@die-jansens.de>
The stm32 has a small queue for spi tx/rx. The current code only uses the
spi with a single byte buffer, effectively waiting for each byte to complete
before starting the next transfer.
This patch changes the structure of spi_transfer() to make use of the queue
and achieve back-to-back transfer of bytes on spi.
Signed-off-by: Arne Jansen <arne@die-jansens.de>
The current code accesses the DR as 32 bit. This enabled data packing mode,
effectively adding a 00 byte between each sent byte. The receive side had
similar problems.
To prevent this, all accesses are 8 bit now, even though this is not
necessary on stmf[14].
Signed-off-by: Arne Jansen <arne@die-jansens.de>
A fast micro-controller may update the gpio pins faster than the
hd44780 chip can handle. Add in the appropriate delays.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Change the "product id" from the redundant "Klipper firmware" to the
CONFIG_MCU value. For now, only make this change on boards that have
CONFIG_HAVE_CHIPID set.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Derived from stm32/adc.c and stm32f0/adc.c with additional changes.
Tested on Monoprice Mini Delta (malyan) stm32f070xb board.
Signed-off-by: Chris Lombardi <clearchris@hotmail.com>
Move armcm_main() to stm32f0.c, stm32f1.c, and stm32f4.c. This gives
the arch specific code more control on the early boot setup.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The main() function has a special meaning to gcc and using it can
result in different code generation. Use armcm_main() to avoid that.
Also, invoke SystemInit() from the board specific armcm_main() code.
This gives the board code more control over board initialization.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The stm32f0 line uses 16bit packet memory reads/writes (as opposed to
the goofy 32bit accesses required on the stm32f103).
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
When enabling "low level options" in Kconfig, selecting a chip that is
20Mhz capable would result in 20Mhz being the default. A 16Mhz speed
is the preferred default, so list that first in the menu.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The FIOSET and FIOCLR registers may not set an initial value if the
pin is not in an output mode. So, use FIOPIN to set the initial
value.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The usbfs receive buffers must also have space for the 2 byte crc at
the end of a transmission. This fixes an error that could lead to
lost messages from mcu to host (resulting in bytes_invalid increasing
in stats) on the stm32f103.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
It appears the usbotg controller can get confused if the usb irq
handler runs while processing a usb request. Disable usb irqs during
usb processing to avoid this.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Use the XFRC interrupt instead of TXFE. Don't mask/unmask the tx
interrupts during runtime. This fixes some race conditions where a tx
notification may have previously gotten lost.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
The ADC pins (on at least the sam3x8e) need to be configured in input
mode with the internal pullups disabled in order to get accurate ADC
readings.
Reported by @bryanboettcher.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Rename the linker script so the build does not have any conflicts with
the armcm_boot.d dependency file.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Lucio Tarantino