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* libmaple/stm32: Add enum stm32_series, STM32_MCU_SERIES.Marti Bolivar2012-04-111-1/+3
| | | | | | | | | | 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 Bolivar2012-04-115-3/+3
| | | | | | | | | | | | | | | | | 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>
* libmaple/flash: Add family-specific FLASH_SAFE_WAIT_STATES.Marti Bolivar2012-04-111-1/+8
| | | | | | | | | | | | 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>
* Move nonportable bits of libmaple/stm32.h into libmaple/stm32f1.Marti Bolivar2012-04-111-0/+100
| | | | | | | | 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>
* 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 Bolivar2012-04-111-34/+7
| | | | | | | | | | | | | 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 Bolivar2012-04-111-1/+1
| | | | | | | | | | | 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 Bolivar2012-04-113-0/+664
| | | | | | | | | | | | | | | 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>
* Move NVIC support for STM32F1 to libmaple/stm32f1.Marti Bolivar2012-04-111-0/+139
| | | | | | 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 Bolivar2012-04-113-0/+178
| | | | | | | | | | | | | | | 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 Bolivar2012-04-113-1/+766
| | | | | | | | | | | | 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>
* Remove "CS3" prefix from libmaple symbol names.Marti Bolivar2012-04-111-6/+6
| | | | | | | | | | | | | | | | | | | 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 Bolivar2012-04-113-0/+348
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>