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Add libmaple/usb/rules.mk, which compiles the USB FS device firmware
submodule. Move the logic for compiling the USB stack from
libmaple/rules.mk into libmaple/usb/rules.mk.
Move libmaple/usb/usb_cdacm.h to libmaple/include/libmaple/. Its API
is sufficiently general that we'll be able to port it over to USB
OTG (either FS or HS) eventually, and that lets us include it from
Wirish using the new style for libmaple headers.
Fix the includes for public libmaple headers within libmaple/usb.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Modify its include guard, and the files that include it, appropriately.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Modify usb.h functions (changing their names in some cases) to also
take a usblib_dev* argument, to fit in better with the rest of
libmaple.
Store an rcc_clk_id in struct usblib_dev for the same reason.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Remove usbSuspend(), usbResumeInit(), usbResume(), the USB
low-priority IRQ, and usbWaitReset() from usb.h. Also remove
RESUME_STATE since it was only there for usbResume().
These functions don't need to be seen by anybody except for usb.c and
usb_cdcacm.c, so move them there (altering their names to fit with
libmaple style guidelines) and mark them static.
Clean up includes in usb.c while we're there.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Move the callbacks to the bottom of the file, and mark them static.
Replace empty callbacks with NOP_Process in the callback tables.
Remove prototype for nonexistent prep_and_reset(). Other
miscellaneous fixups.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Add struct usblib_dev (and USBLIB, a pointer to the singleton) to
usb.h. USBLIB contains the global state which is used by
functionality imported from usb_lib/.
Consolidating global state into USBLIB will make it easier to remove
later.
Initial fields in struct usblib_dev are endpoint interrupt callbacks,
a mask for what to handle in the low-priority USB interrupt, and
device state. These replace pEpInt_IN, pEpInt_OUT; wInterrupt_Mask;
and bDeviceState, respectively from usb_lib/, so remove their
declarations from usb_lib_globals.h accordingly. Also remove unused
SaveState declaration from usblib_globals.h. Move bDeviceState into
'state' field in usblib_dev. Device state type changes from
DEVICE_STATE to usb_dev_state, volatile gets dropped, and enumerators
get a 'USB_' prefix, but it's otherwise the same.
usb_lib/ expects pInformation to point to Device_Info,
pUser_Standard_Requests -> User_Standard_Requests, and
pProperty -> Device_Property.
Alter usb_init_usblib() to reflect these assumptions. Reorganize
usb_lib_globals.h to make these assumptions more apparent to the
reader.
Modify usb_init_usblib() to take endpoint callbacks as arguments;
update its caller in usb_cdcacm.c.
usb_lib/ defines pInformation, pProperty, and pUser_Standard_Requests
itself (in usb_init.c), but we have our own definitions (in usb.c).
Remove the duplicates from usb.c. Also remove EPindex and Device_Info
definitions from usb.c. Unused, and anyways already defined in
usb_lib/usb_init.c.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Move its defines into usb_cdcacm.c and usb.[hc] as appropriate.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Add new usb_cdcacm.h, which provides the virtual serial port API.
This file (and new usb_cdcacm.c) consolidate the VCOM support, which
was previously distributed through descriptors.[hc], usb.[hc],
usb_callbacks.[hc], and usb_config.h.
Add usb_init_usblib() to usb.h, as a way of initializing the USB
peripheral in terms of the data structures required by usb_lib. This
is used by the new usb_cdcacm_enable().
Create new usb_lib_globals.h, with declarations for the usb_lib global
state which is most used throughout the rest of the libmaple USB stack.
Remove descriptors.c and usb_callbacks.[hc]; they are no longer
necessary.
Update the USB README accordingly.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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