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* wirish/boards.cpp: Use FLASH_SAFE_WAIT_STATES.Marti Bolivar2012-04-111-1/+1
| | | | | | | Do this instead of hard-coding a number of wait states to use in setupFlash(), which is called by init(). This helps future-proof. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/flash: Add family-specific FLASH_SAFE_WAIT_STATES.Marti Bolivar2012-04-112-6/+22
| | | | | | | | | | | | This is the smallest wait state value that is safe for use when the MCU is at its fastest rate, not considering overclocking. This requires moving the FLASH_WAIT_STATE defines above the family include, so do that, and add the missing #defines (for wait states up to 7). For the STM32F1, the correct value for FLASH_SAFE_WAIT_STATES is FLASH_WAIT_STATE_2; say so in the F1-family flash.h. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/flash.h: Doxygen fixups.Marti Bolivar2012-04-111-3/+2
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Move nonportable bits of libmaple/stm32.h into libmaple/stm32f1.Marti Bolivar2012-04-112-135/+168
| | | | | | | | These go in a new family header, libmaple/stm32f1/include/family/stm32.h. While we're at it, do some reorganizing. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Rename GLOBAL_FLAGS to TARGET_FLAGS, remove from Makefile.Marti Bolivar2012-04-112-9/+19
| | | | | | | | Move into target-config.mk. Build it up bit-by-bit as the build goes on. Repeat the DENSITY defines once per board in target-config.mk, since they don't make sense on STM32F2. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/nvic.h: Explanatory commenting.Marti Bolivar2012-04-111-1/+3
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32f1: License headers, portability markers.Marti Bolivar2012-04-112-2/+54
| | | | | | | | | Add license headers to libmaple/stm32f1/isrs_performance.S and libmaple/stm32f1/vector_table_performance.S. Copyright to Perry Hung. I was present when Perry wrote these files. Also mark these as STM32F1 specific (rather than "STM32", say "STM32F1"). Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32f1/rcc.c: Add cautionary comment.Marti Bolivar2012-04-111-0/+4
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* RCC: Break out some portable functionality from stm32f1/.Marti Bolivar2012-04-114-34/+119
| | | | | | | | | | | | | Portions of rcc_clk_enable(), rcc_reset_dev(), and rcc_set_prescaler() are portable; break these into static inline helpers in rcc_private.h. These guts of these are portable, but the arrays of registers etc. are not. Also add an extern declaration for rcc_dev_table into rcc_private.h. This lets us put rcc_dev_clk() into a newly resurrected libmaple/rcc.c, since that's portable. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple: Add build infrastructure for private headers.Marti Bolivar2012-04-113-3/+4
| | | | | | | | | | | libmaple/rules.mk: Add LIBMAPLE_PRIVATE_INCLUDES, a place for storing headers which should be commonly available throughout libmaple, but not made public. Currently, this is just the libmaple directory. Add LIBMAPLE_PRIVATE_INCLUDES to the target flags in the STM32F1 and USB submodules. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Move GPIO support for STM32F1 to libmaple/stm32f1.Marti Bolivar2012-04-115-589/+676
| | | | | | | | | | | | | | | Make a new family header, libmaple/stm32f1/include/family/gpio.h, and supporting libmaple/stm32f1/gpio.c. Beyond registers and devices, these also include anything mentioning AFIO, which doesn't exist on F2. Update libmaple/stm32f1/rules.mk for new gpio.c. Alter gpio_write_bit() to use dev->regs->BSRR only. BRRs are not present on STM32F2. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/nvic.c: Cosmetics.Marti Bolivar2012-04-111-11/+15
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Move NVIC support for STM32F1 to libmaple/stm32f1.Marti Bolivar2012-04-112-111/+150
| | | | | | Backwards-compatible. Only the headers need to change. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Move Flash support for STM32F1 to libmaple/stm32f1/.Marti Bolivar2012-04-115-93/+181
| | | | | | | | | | | | | | | This is a backwards-compatible change. The Flash registers on the STM32F2 line are different than on STM32F1. Therefore, move the register map and bit definitions to new libmaple/stm32f1/include/family/flash.h. Move flash_enable_prefetch() from libmaple/flash.c to new libmaple/stm32f1/flash.c. The remaining pieces of libmaple/flash.c use a common subset of the Flash registers, so they're's portable to F2, and that's all we're currently interested in. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Move RCC support for STM32F1 to libmaple/stm32f1/.Marti Bolivar2012-04-115-518/+587
| | | | | | | | | | | | This is a backwards-compatible change. Modify libmaple/rules.mk to include the family's include directory. This allows libmaple/include/libmaple/rcc.h to include the STM32F1 RCC header with #include <family/rcc.h>. We'll use this convention henceforth to distinguish between top-level and family-specific headers. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/rules.mk: Reinstate -Werror.Marti Bolivar2012-04-111-1/+1
| | | | | | This is OK across all boards now that USB is its own submodule. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Make USB its own submodule.Marti Bolivar2012-04-1111-27/+57
| | | | | | | | | | | | | | | 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>
* Revert "Added libs in libraries/ to the include path"Marti Bolivar2012-04-111-1/+0
| | | | | | | | This reverts commit 628750bf82135cc1ca25784c8b39eb771ae87024. Don't mess with LIBMAPLE_INCLUDES. This variable comprises include directories for libmaple proper, not for libraries that depend upon libmaple.
* usb_cdcacm.c: Fix warning for non-LeafLabs boards.Marti Bolivar2012-04-111-6/+2
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* target-config.mk: Remove FLASH_SIZE, SRAM_SIZE settings.Marti Bolivar2012-04-111-10/+0
| | | | | | Unused. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Move wirish/comm/*.cpp into wirish.Marti Bolivar2012-04-113-3/+2
| | | | | | The wirish/comm/ directory is stupid. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Move public headers to include directories; related cleanups.Marti Bolivar2012-04-11120-507/+542
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move libmaple/*.h to (new) libmaple/include/libmaple/. The new accepted way to include a libmaple header foo.h is with: #include <libmaple/foo.h> This is more polite in terms of the include namespace. It also allows us to e.g. implement the Arduino SPI library at all (which has header SPI.h; providing it was previously impossible on case-insensitive filesystems due to libmaple's spi.h). Similarly for Wirish. The old include style (#include "header.h") is now deprecated. libmaple/*.h: - Change include guard #defines from _FOO_H_ to _LIBMAPLE_FOO_H_. - Add license headers where they're missing - Add conditional extern "C" { ... } blocks where they're missing (they aren't always necessary, but we might was well do it against the future, while we're at it.). - Change includes from #include "foo.h" to #include <libmaple/foo.h>. - Move includes after extern "C". - Remove extra trailing newlines Note that this doesn't include the headers under libmaple/usb/ or libmaple/usb/usb_lib. These will get fixed later. libmaple/*.c: - Change includes from #include "foo.h" to #include <libmaple/foo.h>. Makefile: - Add I$(LIBMAPLE_PATH)/include/libmaple to GLOBAL_FLAGS. This allows for users (including Wirish) to migrate their code, but should go away ASAP, since it slows down compilation. Wirish: - Move wirish/**/*.h to (new) wirish/include/wirish/. This ignores the USB headers, which, as usual, are getting handled after everything else. - Similarly generify wirish/boards/ structure. For each supported board "foo", move wirish/boards/foo.h and wirish/boards/foo.cpp to wirish/boards/foo/include/board/board.h and wirish/boards/foo/board.cpp, respectively. Also remove the #ifdef hacks around the .cpp files. - wirish/rules.mk: put wirish/boards/foo/include in the include path (and add wirish/boards/foo/board.cpp to the list of sources to be compiled). This allows saying: #include <board/board.h> instead of the hack currently in place. We can allow the user to override this setting later to make adding custom board definitions easier. - Disable -Werror in libmaple/rules.mk, as the current USB warnings don't let the olimex_stm32_h103 board compile. We can re-enable -Werror once we've moved the board-specific bits out of libmaple proper. libraries, examples: - Update includes accordingly. - Miscellaneous cosmetic fixups. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Tweak family-specific linker file layout.Marti Bolivar2012-04-112-1/+1
| | | | | | | | | | | | | Move support/ld/stm32/f1/performance/vector_symbols.inc to support/ld/stm32/family/f1/performance/vector_symbols.inc Creating directory "family" under support/ld/stm32 will allow parallel directories (e.g. support/ld/stm32/mcu) to exist, which allows an eventual linker script cleanup to go much more smoothly. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Fix linking and C runtime initialization on F1.Marti Bolivar2012-04-112-39/+33
| | | | | | | | | | | | Reorder the .data and .rodata sections in common.inc. This seems necessary to get the linker to place the data ROM disk and the pointer to it in the right places. Switch from long long to int in start_c.c. I have no idea why this helps, but it does. F1 will crash if you don't do this. It will probably slow things down unnecessarily on F2, but I don't care. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Cosmetics.Marti Bolivar2012-04-112-41/+42
| | | | | | | | | Convert wirish/start.S and wirish/start_c.c to libmaple coding conventions. Whitespace and brace insertion changes only. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Remove "CS3" prefix from libmaple symbol names.Marti Bolivar2012-04-115-21/+78
| | | | | | | | | | | | | | | | | | | We're no longer even marginally compatible with CS3, so it's inappropriate to use that prefix in our names. Rename: __cs3_stm32_vector_table -> __stm32_vector_table. __cs3_stack -> __msp_init __cs3_reset -> __exc_reset __cs3_start_c -> start_c Also add an MIT license header and assert LeafLabs copyright over wirish/start.S and wirish/start_c.c. These files are modified from the original CodeSourcery versions, which were distributed under a license that permits modifications to be distributed under a different copyright and licensing terms than the originals. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Remove CS3-style initialization.Marti Bolivar2012-04-1124-141/+74
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove libcs3-related bits from support/ld. Break them out into libmaple proper and Wirish as appropriate: vector table definition and ISR declarations go into libmaple proper, and startup code goes into Wirish. Vector table symbols are included into common.inc from an STM32 family-specific directory under support/ld/stm32. This is a combination of 5 commits. Individual commit messages follow: libcs3_stm32_src: Don't depend on cs3.h. So we can use the existing toolchain. Move ISR decls/vector table into libmaple proper. This allows us to configure the vector table on a per-family basis. - Move support/ld/libcs3_stm32_src/stm32_isrs.S stm32_vector_table.S to libmaple/stm32f1/isrs_performance.S vector_table_performance.S, respectively. The directory libmaple/stm32f1/ is intended to hold all STM32F1-specific code within libmaple. Obviously, there's a lot of work to do before this becomes true. - support/ld/libcs3_stm32_src/Makefile: Don't try to compile stm32_isrs.S and stm32_vector_table.S anymore. - Add libmaple/stm32f1/rules.mk to include these new files in the standard libmaple build. - support/make/target-config.mk: Add LIBMAPLE_MODULE_FAMILY, which selects a directory to use as a family-specific libmaple submodule. - Makefile: Add LIBMAPLE_MODULE_FAMILY to LIBMAPLE_MODULES. Remove support/ld/libcs3_stm32_src and derived object files. From support/ld/libcs3_stm32_src, move start.S and start_c.c into Wirish. Modify wirish/rules.mk accordingly. Delete support/ld/libcs3_stm32_*_density.a. These are no longer necessary, as the relevant objects are included in the standard Wirish build. Remove the GROUP statements from the board linker scripts accordingly. Remove SEARCH_DIR(.) from common.inc; it's no longer necessary. Also fix up some comments that are now out of date. wirish/start_c.c: Don't use CS3-style memory initialization. Switch memory initialization to a simpler style of initializing .data if necessary, then zeroing .bss. Initializing .data is only necessary during Flash builds, since during RAM builds, LOADADDR(.data) == ADDR(.data). This makes libmaple completely incompatible with the CS3 startup sequence. Subsequent commits will clean up the namespace to reflect that fact. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* copy-to-ide: Remove references to libcs3_stm32_*_density.a.Marti Bolivar2012-04-111-2/+0
| | | | | | These no longer exist. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Make vector table symbols family-specific during linking.Marti Bolivar2011-11-154-5/+16
| | | | | | | | | | | | | | | | | - support/make/target-config.mk: add LD_FAMILY_PATH, the directory to search for STM32 family-specific link configuration files. For now, this is just a stub which points to support/ld/stm32/f1/performance, since that's all we currently support. We can add the logic to support different STM32 families here later. - Makefile: Pass -L $(LD_FAMILY_PATH) to linker. - Rename support/ld/names.inc to support/ld/stm32/f1/performance/vector_symbols.inc. - common.inc: INCLUDE vector_symbols.inc instead of names.inc. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_descriptors.h: Remove usbVcomDescriptor[...] values.Marti Bolivar2011-10-211-7/+0
| | | | | | These are CDC ACM-specific. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_descriptors.h: Whitespace and column cleanups.Marti Bolivar2011-10-211-80/+80
| | | | | | Untabify, make (mostly) 80-column clean. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb: Rename descriptors.h -> usb_descriptors.h.Marti Bolivar2011-10-212-3/+3
| | | | | | Modify its include guard, and the files that include it, appropriately. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb.h: Move to libmaple/.Marti Bolivar2011-10-211-0/+0
| | | | | | | | | | | Apart from having an unstable API, usb.h is now a fairly good citizen of libmaple, so move it to live with the rest of the libmaple headers. Its device struct is still "struct usblib_dev". Leave that there; the asymmetry with the rest of the library is a good reminder that the API isn't really on equal footing with the rest of the library. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* USB: API cleanups.Marti Bolivar2011-10-214-25/+24
| | | | | | | | | | 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>
* USB: API cleanups.Marti Bolivar2011-10-213-39/+31
| | | | | | | | | | | | | | 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>
* usb.h: Mark API unstable.Marti Bolivar2011-10-211-0/+4
| | | | | | | | The USB API is heavily reliant on the ST stack, and additionally assumes that all USB is the USB FS peripheral. As such, it's going to have to change as we go forward. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Fix micros() bug.Marti Bolivar2011-10-201-1/+1
| | | | | | Thanks to ala42 for the fix. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* wirish: Clean up includes; other fixups.Marti Bolivar2011-10-1812-29/+46
| | | | | | | | | | | | | | | | | | Clean up various core files' includes to fit this pattern: - Header files include what they use. - CPP files include their header first - Include order is libmaple proper headers, then wirish headers (modulo CPP rule above). wirish.h: Move HIGH and LOW to io.h, and the boolean and byte typedefs into wirish_types.h. These don't belong in wirish.h. Add include guards to wirish_debug.h. Oops. wirish_digital.cpp: Use standard bool instead of "boolean". Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Oops; actually remove usb_config.h.Marti Bolivar2011-10-181-45/+0
| | | | | | | | usb_config.h was supposed to be removed in d7afdbe6b41a77938863854a1e719398e6c35094; however, it looks like some merge conflicts stopped that from happening while I was rebasing. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_cdcacm.c: CleanupsMarti Bolivar2011-10-181-200/+202
| | | | | | | | | 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>
* usb.h, usb.c: CleanupsMarti Bolivar2011-10-182-22/+18
| | | | | | | | | Remove wIstr. This cleans up the control flow. wIstr is still declared in usb_lib/usb_regs.h, but it's unused throughout the code base. Remove bIntPackSOF. Only written, never read. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Remove usb_int.h, usb_int.h, usb_int.c.Marti Bolivar2011-10-184-235/+0
| | | | | | No longer used. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb: Clean up some globals with new struct usblib_dev.Marti Bolivar2011-10-184-79/+94
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Remove usb_config.h.Marti Bolivar2011-10-183-17/+28
| | | | | | Move its defines into usb_cdcacm.c and usb.[hc] as appropriate. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb: Disentangle CDC ACM functionality.Marti Bolivar2011-10-1815-894/+892
| | | | | | | | | | | | | | | | | | | | | 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>
* usb.c: Use usb_reg_map.h; replace most of CTR_LP().Marti Bolivar2011-10-181-90/+244
| | | | | | This cuts down on some of the uglier dependencies. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb: Remove usbPowerOff(), move usbPowerOn() to usb_callbacks.c.Marti Bolivar2011-10-183-31/+15
| | | | | | | | | | | Remove usbPowerOn(), usbPowerOff() prototypes from usb.h. These aren't used outside of the USB subsystem, so they don't belong here. Move usbPowerOn() from usb.c to usb_callbacks.c. This is the only place where it's used. Remove the unused usbPowerOff() (from usb.c) altogether. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb: Prepare for moving some files to usb_reg_map.h.Marti Bolivar2011-10-184-21/+39
| | | | | | | | | | | | | usb_config.h: Remove usb_regs.h dependency; fix includes; add license. usb_callbacks.h: Change includes to the pieces of usb_lib/ it uses, which doesn't include usb_regs.h. descriptors.h: Remove unused usb_lib.h include. usb.h: Remove unused usb_lib.h include. Some cosmetic commenting. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Add usb_reg_map.h and usb_reg_map.c.Marti Bolivar2011-10-183-0/+513
| | | | | | | | | | | usb_reg_map.h contains the usual register map and register bit definitions that libmaple convention requires. It also contains a variety of structs and convenience functions for accessing and manipulating endpoint registers, BTABLE entries, and PMA buffers. We'll be moving towards usb_reg_map.h instead of usb_lib/usb_regs.h. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb: Update README file.Marti Bolivar2011-10-181-20/+1
| | | | | | Various parts of it are no longer true, and some TODOs are now done. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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