F0 should check the oscillator ready bits in the regular registers, just
like the docs claim, and just like every other stm32, rather than trying
to check for the interrupt flags.
Reported-by: n1b on irc
Signed-off-by: Karl Palsson <karlp@tweak.net.au>
This commit implements the support for one interface to have multiple
altsettings. It also adds hook that user can use to perform actions
when the alsetting switch is performed by host.
Changes:
* For backward compatibility, placed a pointer instead of allocating memory for whole interface struct.
* Always execute callback (even if the current interface alternate-settings matches).
* Multiple configuration support.
Signed-off-by: Kuldeep Singh Dhaka <kuldeepdhaka9@gmail.com>
These devices have 32kiB RAM and 256kiB flash and are otherwise
register compatible with the f373x8 and f373xc devices.
Signed-off-by: Jeff Epler <jepler@unpythonic.net>
When writing the USB endpoint register, USB_EP_RX_CTR (bit 15) and
USB_EP_TX_CTR (bit 7) should be set to avoid inadvertently clearing
either bit.
Prior to this patch end points could indefinately stall if the hardware
changed these bits between the time they are read and when they were
written.
Signed-off-by: George McCollister <george.mccollister@gmail.com>
Added CLR_REG_BIT_MSK_AND_SET and TOG_SET_REG_BIT_MSK_AND_SET because we
need version of CLR_REG_BIT_MSK and TOG_SET_REG_BIT_MSK that allow us to
OR in bits before the register is written.
Signed-off-by: George McCollister <george.mccollister@gmail.com>
USB using control callbacks was broken since d6bad27735a77b8daa90ce72b843cf08ba78697d
Properly check if user usb control callback are registered,
while here make sure user_callback_set_config callback pointers are initialized to NULL.
Provides all of the config descriptors for MIDI class devices together
with a sub-set of the audio class sufficient to put together a full
fledged MIDI device.
Extends struct usb_endpoint_descriptor to make it possible to provide
the USB host with class-specific extensions to endpoint descriptors.
The approach taken, based on extra and extralen and removing the sizeof()
from USB_DT_ENDPOINT_SIZE, is identical to the approach used to add
class-specific extensions to interface descriptors. All libopencm3-examples
use the USB_DT_ENDPOINT_SIZE (rather than directly using sizeof) so there
should be no compatibility problems resulting from this change.
If there is no additional iface data then iface->extra is NULL and
iface->extralen is zero. Passing NULL to memcpy is undefined behaviour
even if the length of data to copy is zero. In other words a conforming
(debug) memcpy implementation is permitted to assert(dst && src) without
checking the value of n.
Add an extra branch to avoid this.
Rename rcc_ppre1_frequency and rcc_ppre2_frequency to rcc_apb1_frequency and rcc_apb2_frequency
Also add rcc_ahb_frequency (although it is not set correctly in all cases) which will be fixed by
the rcc commits later. Also fixup the only use in the library of these variables, the USART code.
And fix the typos that resulted
Make l1 generic too
Pulls out duplicate calls from f0/rcc.c and uses the common version which
also means that f0 can use rcc_peripheral_enable() now which is in common
but not the old rcc versions.
