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* libmaple/stm32.h: Add STM32_TIMER_MASK, STM32_HAVE_TIMER.Marti Bolivar2012-06-011-4/+39
| | | | | | | | | | | | | | | | | | Feature-test macros for dealing with the fact that timer support has holes. STM32_TIMER_MASK is a bitmask where bit n is set when TIMERn is present. STM32_HAVE_TIMER(n) just tests whether bit n is set in STM32_TIMER_MASK. This is necessary because e.g. the STM32F100RB has timers 1-4, 6, 7, and 15-17. Because of this, the usual STM32_NR_whatever won't work, and we use a bitmask instead. For F1 performance line (F103s), STM32_TIMER_MASK can be derived from the density. For F1 value line, I'm not as sure, so just add it for the single MCU we support (the STM32F100RB). Same story for F2: add it for the STM32F207IC. We can fix this up later if necessary. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Bring back HardwareSerial.Marti Bolivar2012-06-011-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | To make this happen, we need to have <board/board.h> tell us whether or not it's got each of the USARTs. Do that with BOARD_HAVE_USARTn, for n = 1,...,6. This lets us define HardwareSerial instances only when appropriate, and gets rid of some board-specific hacks we'd accumulated. The new <libmaple/usart.h> now has a convenience function for determining the bus rate by using the appropriate STM32_PCLKx macro, so we can shave a uint32 per instance, which is nice given that they're all going to be in memory. This changes the constructor arguments, but the API only specifies the semantics of the predefined instances, so this is still backwards-compatible. (We should look into storing the instances in Flash -- they don't change, after all.) We don't actually need struct usart_dev's definition in HardwareSerial.h, so replace it with a forward declaration and include <libmaple/usart.h> it in HardwareSerial.cpp instead. Assert some copyrights. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* <libmaple/gpio.h>: Fix gpio_write_bit().Marti Bolivar2012-05-311-1/+1
| | | | | | | It's exactly wrong -- val=0 makes the pin high, and val=1 makes it low. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/nvic.h: Doxygen tweak.sMarti Bolivar2012-05-311-6/+18
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/nvic.h: Fix typo.Marti Bolivar2012-05-311-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/rcc.h: Doxygen.Marti Bolivar2012-05-311-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* RCC: DoxygenMarti Bolivar2012-05-311-8/+45
| | | | | | | Various changes to Doxygen structure, to help leaflabs-docs make sense of everything. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/rcc.h: Doxygen workarounds.Marti Bolivar2012-05-311-3/+3
| | | | | | | We need the arguments to be the same name everywhere, or Breathe/Doxygen get confused. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/fsmc.h: Better Doxygen for memory bank bases.Marti Bolivar2012-05-311-9/+29
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/fsmc.h: Don't use BIT().Marti Bolivar2012-05-311-23/+23
| | | | | | | As fsmc.h doesn't include util.h or libmaple.h, these usages are actually in error. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/iwdg.h: Remove BIT() usages.Marti Bolivar2012-05-311-3/+2
| | | | | | This cleans up another unnecessary <libmaple/util.h> dependency. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* flash.h: Doxygen.Marti Bolivar2012-05-091-0/+5
| | | | | | | Document FLASH_BASE once. This is due to restrictions in the documentation build system. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Change __DOXYGEN_PREDEFINED_HACK to __DOXYGEN__.Marti Bolivar2012-05-091-4/+3
| | | | | | avr-gcc does it this way. Seems ok to me. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/util.h: Doxygen cosmetics.Marti Bolivar2012-05-081-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/flash.h: Doxygen for flash_enable_features().Marti Bolivar2012-05-081-4/+14
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/flash.h: Deprecate flash_enable_prefetch().Marti Bolivar2012-05-081-0/+3
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Fix a bunch of Doxygen file-level comments.Marti Bolivar2012-05-0822-24/+23
| | | | | | | | | | | | | Fix @file in many places. Also fix up the descriptions where it's appropriate. This standardizes the @file formatting across the library to explicitly include any parent directories up to the repository root. Besides being nice, this will hopefully let us manage Doxygen's XML output so as to make extracting series-specific pieces via Breathe in the leaflabs-docs repo possible. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/flash.h: Fix Doxygen @fileMarti Bolivar2012-05-081-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/util.h: Doxygen fixups.Marti Bolivar2012-05-081-3/+3
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* ring_buffer.h: Fix Doxygen @file.Marti Bolivar2012-05-081-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/stm32.h: Doxygen.Marti Bolivar2012-05-081-0/+17
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/bkp.h: Tweak for STM32F1 XL-density.Marti Bolivar2012-05-071-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/adc.h: Cosmetics.Marti Bolivar2012-05-031-9/+9
| | | | | | | | | Add "extern" to mark portable interface routines that are implemented individually by each series. Move some code around. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32f1: Resurrect DMA support. (sets up breaking change)Marti Bolivar2012-05-031-382/+22
| | | | | | | | | | | | | | | | | Breaking change set up: struct dma_handler_config is no longer part of the public API in <libmaple/dma.h>. User code which was touching these was always mistaken; it should be using dma_attach_interrupt() or dma_detach_interrupt() instead. Other than that, just move the nonportable bits in <libmaple/dma.h> and libmaple/dma.c to the appropriate places under libmaple/stm32f1/. (Ouch. This is almost everything.) Patch the (new) STM32F1 <series/dma.h> here and there to make everything compile; this is mostly limited to forward-declaring struct dma_dev and providing a hack _dma_dev_regs() declaration so inline functions in the series header can still access a device's registers. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/stm32.h: Copyrights and cosmetics.Marti Bolivar2012-05-031-3/+9
| | | | | | | | Fix copyright. Fix Doxygen @file. Update file-level documentation, given this file's increased importance as an abstraction for porting between series. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/dma.h: Fix Doxygen @file.Marti Bolivar2012-04-261-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32.h: Various updates, mostly to help STM32F1 line support.Marti Bolivar2012-04-241-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add STM32_HAVE_USB feature test macro requirement for <series/stm32.h>. This will let us test if we've got a USB peripheral. wirish/stm32f1/boards_setup.cpp is set up to use this when turning on USB CDC ACM support at init() time. Rework the STM32F1 <series/stm32.h> to make it easier to support the various lines that subdivide that series. We don't really support anything besides performance line yet, but there's been enough enthusiasm for value and connectivity line support in the past that these hooks seem worth adding. This means adding an STM32_F1_LINE macro and STM32_F1_LINE_[PERFORMANCE,VALUE,ACCESS,CONNECTIVITY] macros for values that STM32_F1_LINE can take, and generalizing the rest of the file to begin taking this into account. Some TODOs remain, but filling these in is the responsibility of future libmaple porting efforts. One pleasant consequence of the F1 stm32.h rework is that the build system no longer has to tell us what density of F103 we're building for, so remove that from the relevant support/make/board-includes/ files. Add some tweaks to <libmaple/stm32.h> and the STM32F2 stm32.h header to make sure this went through properly, and continues to go through properly in the future.
* libmaple/i2c.h: Rearrange i2c_dev members to improve packing.Marti Bolivar2012-04-111-5/+5
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/spi: Fixups, move nonportable bits into libmaple/stm32f1.Marti Bolivar2012-04-111-56/+62
| | | | | | | | | | | Standard family support refactoring: add STM32F1 series spi.h, spi.c, and move anything that won't port to STM32F2 there. As part of a general effort to be cleaner, remove the dependency on libmaple/util.h from libmaple/spi.h by not using BIT(). Also forward declare struct gpio_dev for spi_gpio_cfg() to remove that include. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/spi: Fix boilerplate.Marti Bolivar2012-04-111-1/+2
| | | | | | Update Doxygen file headers and license copyright dates. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/rcc.h: Fix Doxygen file header.Marti Bolivar2012-04-111-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* STM32F1: Add support for timers 9 through 14.Marti Bolivar2012-04-111-7/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This applies to XL-density STM32F1 devices. In stm32f1/timer.c, add timer_dev's for the new timers, using the timer_private API. These definitions are conditionally compiled based on the target density to avoid wasting space on smaller MCUs. Also add calls to the appropriate timer_private.h dispatch routines within the IRQ handlers for these timers. We need to change the IRQ handler names to reflect this eventually, but put that off for now, as it could break backwards compatibility in some exotic situations where the user refers to the libmaple IRQ handlers directly. In stm32f1/timer.h, add register map base pointers and device declarations for the new timers. timer_dev* declarations are compiled in only when the target MCU supports them, in keeping with the above stm32f1/timer.c changes. In libmaple/timer.c, update the (static) IRQ enable routines to account for the additional timers. This adds some code that's unnecessary on smaller STM32F1s, but it's minimal (40 extra bytes on my machine), so portability and readability win out. Size change, using GCC version "(Sourcery G++ Lite 2011.03-42) 4.5.2": Before: text data bss dec hex filename 615 0 0 615 267 build/home/mbolivar/leaf/libmaple/libmaple/timer.o After: text data bss dec hex filename 655 0 0 655 28f build/home/mbolivar/leaf/libmaple/libmaple/timer.o Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/timer.h: Minor tweaks.Marti Bolivar2012-04-111-4/+4
| | | | | | Comments etc. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* timer: Fixes, rip out nonportable bits.Marti Bolivar2012-04-111-90/+143
| | | | | | | | | | | | | | Fix copy-paste errors in, and add missing, register bit definitions. For copy-paste errors that would result in source incompatibilities with past releases, add some legacy defines. Add series header and C file for STM32F1 which fills in the missing API. Much of the F1 timer.c would be repeated on F2, so also add timer_private.h to hold these. Support for timers 9 through 14 is still missing. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/libmaple_types.h: Add __always_inline.Marti Bolivar2012-04-111-0/+1
| | | | | | We need this to ensure inlining when compiled with -Os. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/timer.h: Fixups.Marti Bolivar2012-04-111-4/+4
| | | | | | Fix include guard define name, update copyright, fix Doxygen @file. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/dac.h: Fixups.Marti Bolivar2012-04-111-1/+3
| | | | | | Assert LeafLabs copyright; fix Doxygen @file, and add missing include. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Deprecate rcc_clk_init().Marti Bolivar2012-04-111-1/+1
| | | | | | | | | | | | This function has been with us from the earliest days of libmaple. It's showing its age, as the API it presents is tied to the STM32F1. Deprecate it, and provide instructions for how to use newer, more portable APIs. The new way is more verbose, but we can always add a portable "just set up the PLL, dammit" convenience function later (a nice candidate is to extract an interface from setup_clocks() in boards.cpp). Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Resurrect ADC support.Marti Bolivar2012-04-111-107/+68
| | | | | | | | | | | | | Standard refactoring: add series headers for F1 and F2, along with series adc.c files. There are some issues relating to adc_extsel_event to hammer out later, but this will do for now. We also add some new portability interfaces to libmaple/adc.h in order for Wirish to use the same code to initialize the ADCs at init() time. As usual, F1 is untested. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Resurrect IWDG support.Marti Bolivar2012-04-111-1/+1
| | | | | | This peripheral is identical on F1 and F2. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Resurrect PWR support for F1 and F2.Marti Bolivar2012-04-111-0/+1
| | | | | | Just add the missing register bit definitions in new series headers. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/pwr.h: Fix register bits (breaking change).Marti Bolivar2012-04-111-10/+34
| | | | | | | | | | | | | | | | | This is a backwards-incompatible change. It is necessary to fix an error. The register bit definitions are given as if they were masks, but they're actually bit numbers. E.g., PWR_CR_DBP, which should be the mask for DBP in the power control register PWR_CR, is actually the number of the bit that should be masked. Fix this by adding _BIT to the definitions and adding proper masks. Also add a mask for the PVD level selection bits in PWR_CSR. Don't add any mask values for particular voltages selected as these are not portable. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* [UNTESTED] Resurrect FSMC support.Marti Bolivar2012-04-111-0/+3
| | | | | | | | | | fsmc_sram_init_gpios() is now series-specific, so move its existing implementation to the F1 backend, and add libmaple/stm32f2/fsmc.c for the F2 backend. Delete libmaple/fsmc.c; it is now empty. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* fsmc.h: Use STM32_HAVE_FSMC feature-test macro.Marti Bolivar2012-04-111-3/+4
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32.h: Add STM32_HAVE_FSMC.Marti Bolivar2012-04-111-0/+3
| | | | | | | This is a feature test macro for the flexible static memory controller (FSMC) peripheral. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* [FIXME] Resurrected, shinier USART support.Marti Bolivar2012-04-111-40/+189
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | FIXME: - Test F1 support - Solve problem of duplicated bytes being TXed unless delay is inserted after configuration but before first bytes are TXed. Rip out nonportable bits from top-level interfaces. The USART register maps are basically the same between F1 and F2, so leave these, but add register bit definitions which had name changes to the libmaple header to avoid needless repetition. There are also a few new bits in the F2 USART registers; add definitions for these in the F2 USART header. Add Doxygen comments for all USART bit definitions. Deprecate struct usart_dev's max_baud field. This is just bloat that doesn't bring us much real benefit. Add new series-specific USART files for F1 and F2: - libmaple/stm32f[1,2]/usart.c - libmaple/stm32f[1,2]/include/series/usart.h These are standard series-specific files, providing register map base pointers, defining devices, implementing nonportable routines, etc. We need a portable way to configure the USART GPIOs. To this end, add usart_async_gpio_cfg() to the top-level USART interface. This function is implemented in new F1 and F2 USART backends to take the appropriate action to configure the RX and TX pins for asynchronous full duplex mode. USART baud rate calculation is done differently on the different series. Keep the usart_set_baud_rate() declaration in the top-level USART header, but move the implementations into the series-specific usart.c files. In usart_set_baud_rate(), allow for deriving clock_speed automatically by letting user tell us to figure out the peripheral clock speed by mapping the device's rcc_clk_id onto an STM32_PCLK[1,2] value. This preserves flexibility for users with non-default clock configurations, but makes things easier on everyone else. Add private USART files for portable private USART routines: - libmaple/usart_private.h - libmaple/usart_private.c Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* RCC: Add rcc_is_clk_on().Marti Bolivar2012-04-111-0/+1
| | | | | | This is a convenience function for checking if a clock line is on. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Add __weak to <libmaple/libmaple_types.h>.Marti Bolivar2012-04-111-0/+1
| | | | | | This is just an alias for __attribute__((weak)). Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* RCC: Add new mechanism for configuring the main PLL.Marti Bolivar2012-04-111-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new style for configuring the PLL is to initialize a (series-specific) struct rcc_pll_cfg, and pass a pointer to it to rcc_configure_pll(). After that's done, you can use rcc_turn_on_clk(RCC_CLK_PLL) to turn on the main PLL, and busy-wait until rcc_is_clk_ready(RCC_CLK_PLL) is true to make sure the new configuration took effect. - libmaple/rcc.h: -- Add struct rcc_pll_cfg, which specifies a PLL configuration. This specifies a PLL source and a void pointer to series-specific PLL configuration data. -- Add rcc_configure_pll(), which takes a pointer to struct rcc_pll_cfg, and configures the main PLL. It's up to each series to define this function. - stm32f1/rcc.h: Add struct stm32f1_rcc_pll_data, to store F1-specific PLL configuration state. - stm32f1/rcc.c: Add an implementation for rcc_configure_pll(). - stm32f2/rcc.h: Add struct stm32f2_rcc_pll_data, to store F2-specific PLL configuration data. - stm32f2/rcc.c: Add an implementation for rcc_configure_pll(). Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/rcc.h: Add rcc_enable_css(), rcc_disable_css().Marti Bolivar2012-04-111-0/+17
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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