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* RCC: Clean up and sanitize interfaces across F1, F2 series.Marti Bolivar2012-04-116-49/+224
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Additions: - rcc_switch_sysclk(): For changing the clock used as SYSCLK's source. - enum rcc_clk: One for each system and secondary clock source (e.g. HSE, LSE). These are defined on a per-series basis in each of the <series/rcc.h>. - rcc_turn_on_clk(), rcc_turn_off_clk(), rcc_is_clk_ready(): For turning on system and secondary clock sources, and checking whether or not they're ready. Uses enum rcc_clk. Removals: - rcc_clk_init(): There's no way to port this to F2. Move it to the F1 header. This also means we can remove the empty implementation and enum rcc_pll_multiplier from the F2 RCC header, where it doesn't make any sense. Also fix up some includes, and rewrite rcc_clk_init() in terms of the new clock source management functions. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Clean up Flash interface; add flash_enable_features().Marti Bolivar2012-04-117-87/+42
| | | | | | | | | | | | | | | | Make a single function, flash_enable_features(), to control the access characteristics of Flash memory (i.e. to write to the non-latency bits of ACR). In so doing, make everybody pretend to allow instruction and data caching. On STM32F1, trying to turn these on simply has no effect. This allows unconditionally trying to turn them on, which will simplify users' lives. This has the ancillary benefit of making the stm32f2- and stm32f1-specific flash.c files unnecessary; delete these. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* STM32F2 Flash support.Marti Bolivar2012-04-113-0/+236
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* [WIP] boards: Add st_stm3220g_eval.Marti Bolivar2012-04-112-0/+109
| | | | | | | This supports ST's STM3220G-EVAL, the standard "kitchen-sink" evaluation board for the STM32F2 series. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32f2/stm32.h: Add support for STM32F207IG.Marti Bolivar2012-04-112-10/+19
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* ld/make: Add support for STM3220G-EVAL board.Marti Bolivar2012-04-112-0/+21
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* [UNDO] Rip out a bunch of F1-only bits from libmaple properMarti Bolivar2012-04-113-43/+34
| | | | | | | We'll need to bring this functionality back online piecemeal as we add F2 support. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* [UNDO] Rip out everything but libmaple and Wirish startup code.Marti Bolivar2012-04-112-23/+23
| | | | | | | We'll need to bring all this functionality back online piecemeal as we add F2 support. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Initial STM32F2 series/stm32.h.Marti Bolivar2012-04-111-0/+83
| | | | | | This still has some FIXMEs, but it's enough to get going. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Initial STM32F2 GPIO support.Marti Bolivar2012-04-113-0/+380
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Initial STM32F2 RCC support.Marti Bolivar2012-04-113-1/+1088
| | | | | | Largely untested. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple_types.h: Add offsetof().Marti Bolivar2012-04-111-1/+5
| | | | | | | | Rather than rely on newlib's stddef.h, define our own offsetof() in terms of GCC's __builtin_offsetof(). Don't override an existing offsetof() definition, in case the user already has one they prefer. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* STM32F2 NVIC support.Marti Bolivar2012-04-111-0/+156
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* STM32F2: Add vector table and weak ISR definitions.Marti Bolivar2012-04-113-1/+458
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Add skeleton libmaple/stm32f2/rules.mk.Marti Bolivar2012-04-111-0/+29
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* support/ld: Add STM32F2 vector symbols.Marti Bolivar2012-04-111-0/+98
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Make BKP support STM32F1-only.Marti Bolivar2012-04-114-2/+2
| | | | | | | | | - libmaple/bkp.h: Mark availability restriction. - Move libmaple/bkp.c to libmaple/stm32f1; adjust rules.mk files accordingly. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Add build support for targeting multiple STM32 series.Marti Bolivar2012-04-117-6/+12
| | | | | | | | | | | | | | | | | | | Add an MCU_SERIES variable to each of the files under support/make/board-includes, which declares the series as "stm32f1" in each case. Use this in target-config.mk when determining LD_SERIES_PATH (with a hack since we only support performance line) and LIBMAPLE_MODULE_SERIES. We must move support/ld/stm32/series/f1 to .../series/stm32f1 as a side-effect. Adding support for other series (e.g. "stm32f2") should now be a matter of filling in the contents of libmaple/<series>/ and support/ld/stm32/<series>/ appropriately (along with moving the rest of the nonportable code out of the libmaple core and into the STM32F1 series submodule). Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Delete .gdbinit.Marti Bolivar2012-04-111-9/+0
| | | | | | This is specific to openocd; it shouldn't be here. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Makefile: use $(MAKEDIR) instead of $(SUPPORT_PATH)/make.Marti Bolivar2012-04-111-2/+2
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* build system: Add board include files for target-config.mk.Marti Bolivar2012-04-116-45/+33
| | | | | | | | | | | | target-config.mk is getting a little long with all the boards in it. Break out the board-specific bits into individual files under support/make/board-includes. This has the added benefit that adding a new board requires less dirtying of the working tree, which is nice for jumping around branches with an experimental board. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/stm32: Add enum stm32_series, STM32_MCU_SERIES.Marti Bolivar2012-04-112-3/+23
| | | | | | | | | | enum stm32_series gives a tag to each STM32 series, including the ones we don't yet support. STM32_MCU_SERIES is a define which the series stm32.h header must provide, identifying the series of the MCU being targeted. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Great renaming: use "series" instead of "family".Marti Bolivar2012-04-1114-25/+25
| | | | | | | | | | | | | | | | | This is for greater consistency with the ST application notes, which refer to migrating "across" series (e.g. F1 to F2), but compatibility "within" a family (e.g. F1). So: - Move libmaple/stm32x/include/family to .../include/series/ and fix up includes appropriately. - Refer to "family" headers as "series" headers in comments. - Make similar "find and replace"-style changes to build system variable names and comments. - Move support/ld/stm32/family to .../stm32/series. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* boards.cpp: Remove implementation details from Doxygen comments.Marti Bolivar2012-04-111-6/+9
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* 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>
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