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* ADC: Doxygen fixupsMarti Bolivar2012-06-291-4/+8
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Doxygen hacks and fixups.Marti Bolivar2012-06-281-1/+1
| | | | | | | | - Shut Doxygen up in various places - Fix some genuine docs bugs - Ignore sources we're not responsible for Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Implement DMA tube API on STM32F2.Marti Bolivar2012-06-151-0/+810
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Bring back <libmaple/spi.h>.Marti Bolivar2012-06-071-0/+88
| | | | | | | | | | | Add a spi_private.h with a SPI_DEV(), for convenience. Use it in the F1 and F2 implementations. We could probably unify these with an STM32_HAVE_SPI(n) macro, but we'll leave that for the future. Most everything from F1 is portable; F2 has some additional bit definitions and a spi_get_af() routine, but that's about it. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* series/timer.h: Remove silly duplicate declarations.Marti Bolivar2012-06-071-1/+0
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32.h: Soften "missing MCU" errors into warnings.Marti Bolivar2012-06-071-1/+1
| | | | | | | | | | | | | | It's not important whether the MCU is specified. What's important is that <libmaple/stm32.h> gets everything it needs -- which it now ensures that it does. Requiring people to do things on a per-MCU basis hurts hackability and is just asking for trouble. On the other hand, it's nice to provide a clue as to why <libmaple/stm32.h> might be giving #errors, so do leave the warnings. People can always hack the header to shut them up if they want. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Bring back libmaple/dac.h.Marti Bolivar2012-06-041-0/+94
| | | | | | | Minor variations on F2: DMA underrun interrupts, and a status register to hold the notification bits. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32.h: Add STM32_HAVE_DAC feature-test.Marti Bolivar2012-06-041-0/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* STM32F2: Add EXTI support.Marti Bolivar2012-06-031-0/+46
| | | | | | | | Add series headers to keep the base pointers, and (on F2) use SYSCFG to tell exti_do_select() where the EXTI control registers are. No surprises. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Bring back EXTI on F1, with deprecations for gpio.h on F1.Marti Bolivar2012-06-031-30/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tested on Maple Mini with examples/mini-exti-test. Changes to Wirish are minor: use the new EXTI types exti_num and exti_cfg (see below) in place of now-deprecated variants in ext_interrupts.cpp. The way I originally did libmaple/exti.h was stupid, and fixing it turned out to be a little disruptive. libmaple/exti.h depends on libmaple/gpio.h (for AFIO), but that's a classic case of exposed implementation detail. So invert the dependency: make gpio.h depend on exti.h. Do this by adding exti_num and exti_cfg to exti.h; these respectively replace afio_exti_num and afio_exti_port. The afio_* variants are now deprecated. (Throw in a typedef and some macros at the bottom of the F1 series/gpio.h for backwards compatibility). Make exti_attach_interrupt() and exti_detach_interrupt() take exti_num/exti_cfg arguments instead of the afio_* variants. Make the EXTI dispatch routines __always_inline to defeat GCC -Os. Many renames throughout libmaple/stm32f1/ to stop using the deprecated names. Also move the previously F1-only gpio_exti_port() function into the public libmaple header. Reimplementing it in terms of rcc_clk_ids lets us deprecate the gpio_dev->exti_port field, which will save space in the future. While we're there, I notice that struct gpio_dev is defined once per series. That's dumb, as it misses the entire point of having device structs: they contain what's portable. So put the F1 version (which has the extra EXTI port field) into libmaple/gpio.h, and add the necessary exti_ports to libmaple/stm32f2/gpio.c. Sigh. We'll get rid of it eventually, at least. Clean up some other mistakes in gpio.h files as well (mostly removing util.h dependency). Sorry for the messy commit. For portability, add a new series-specific exti function, exti_select(). The F1 version in (new) libmaple/stm32f1/exti.c uses AFIO and some new private functionality in libmaple/exti.c and (new) libmaple/exti_private.h to make this convenient. We'll be able to do the SYSCFG equivalent on F2 without any trouble. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* F2: Add usart_get_af().Marti Bolivar2012-06-031-0/+8
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* STM32F2: Add timer_get_af().Marti Bolivar2012-06-031-0/+7
| | | | | | | | Pull some code out of the F2 pinMode() into a utility function. This feels generally useful enough to be exposed to the users (it will, for example, make it easier to implement input capture in a clean way). Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Sort the rcc_clk_id enumerators semi-alphabetically.Marti Bolivar2012-06-021-50/+50
| | | | | | | | | | | | | | | | Only semi-alphabetically because peripherals are kept together (so the UARTs sort as if they were USARTs). Advantages: - It lets us play numeric comparison and lookup-table hacks, as we now have the property that the rcc_clk_ids for a given peripheral are a contiguous range of integers. - It will hopefully let the compiler emit faster/smaller code for switches over a dev->clk_id. - It's better intuitively. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/stm32.h: Add STM32_TIMER_MASK, STM32_HAVE_TIMER.Marti Bolivar2012-06-011-0/+1
| | | | | | | | | | | | | | | | | | 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>
* nvic.h: Doxygen: nvic_irq_num is target dependent.Marti Bolivar2012-05-311-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* series/rcc.h: Lose BIT().Marti Bolivar2012-05-311-228/+228
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32f2/rcc.h: Remove a TODO.Marti Bolivar2012-05-311-7/+0
| | | | | | That never worked out. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32f2/rcc.h: Add FIXME for rcc_rtc_divider.Marti Bolivar2012-05-311-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32f2/rcc.h: Fix typo.Marti Bolivar2012-05-311-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* RCC: DoxygenMarti Bolivar2012-05-311-22/+14
| | | | | | | Various changes to Doxygen structure, to help leaflabs-docs make sense of everything. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Lose <libmaple/util.h> dependency in series/flash.h headers.Marti Bolivar2012-05-091-25/+25
| | | | | | Switch from BIT(...) to (1U << ...). Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* flash.h: Doxygen.Marti Bolivar2012-05-091-1/+0
| | | | | | | Document FLASH_BASE once. This is due to restrictions in the documentation build system. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Mark Doxygen for Flash register maps as series-specific.Marti Bolivar2012-05-081-1/+1
| | | | | | | This will let help us verify that we got the right thing when we pull it out of of Doxygen XML for the official HTML documentation. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Fix a bunch of Doxygen file-level comments.Marti Bolivar2012-05-088-12/+12
| | | | | | | | | | | | | 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>
* stm32.h: Various updates, mostly to help STM32F1 line support.Marti Bolivar2012-04-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* stm32f2/gpio.h: Cosmetics.Marti Bolivar2012-04-111-2/+2
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* STM32F2: Add timer support.Marti Bolivar2012-04-111-0/+170
| | | | | | | Standard series peripheral support patch, containing STM32F2 series timer.h and timer.c. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32f2/nvic.h: Add fake NVIC_TIMER6 irq number.Marti Bolivar2012-04-111-0/+4
| | | | | | | This is necessary to make some timer code portable, but I'm not sure it's a good idea. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32f2/rcc.h: Fix Doxygen file header.Marti Bolivar2012-04-111-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32f2/nvic.h: Fix Doxygen @file directive.Marti Bolivar2012-04-111-1/+1
| | | | | | This lets Doxygen pick it up. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32f2/rcc: Fix timer rcc_clk_id enumerators.Marti Bolivar2012-04-111-14/+14
| | | | | | | | The timer enumerators are different tokens on F2 than they are on F1. This is wrong (breaks portability), so fix it, and update the F2 rcc_dev_info table to match. 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 Bolivar2012-04-111-0/+331
| | | | | | | | | | | | | 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 PWR support for F1 and F2.Marti Bolivar2012-04-111-0/+73
| | | | | | Just add the missing register bit definitions in new series headers. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32.h: Add STM32_HAVE_FSMC.Marti Bolivar2012-04-111-7/+2
| | | | | | | 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 Bolivar2012-04-111-0/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* stm32f2: Improve GPIO alternate function support.Marti Bolivar2012-04-111-5/+53
| | | | | | | | | Add GPIO_AFRL and GPIO_AFRH bit definitions; these seem to have been overlooked. Add enum gpio_af to give labels to the various functions. Add gpio_set_af() convenience routine for configuring a GPIO's alternate function. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32.h: Cleanups.Marti Bolivar2012-04-111-6/+2
| | | | | | | Fix include guard name. Remove unused STM32_FLASH_WAIT_STATES (which was superseded by FLASH_SAFE_WAIT_STATES). Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* RCC: Add new mechanism for configuring the main PLL.Marti Bolivar2012-04-111-22/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* RCC: Clean up and sanitize interfaces across F1, F2 series.Marti Bolivar2012-04-111-5/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Bolivar2012-04-111-0/+7
| | | | | | | | | | | | | | | | 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 Bolivar2012-04-111-0/+196
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32f2/stm32.h: Add support for STM32F207IG.Marti Bolivar2012-04-111-1/+1
| | | | 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 Bolivar2012-04-111-0/+222
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Initial STM32F2 RCC support.Marti Bolivar2012-04-111-0/+919
| | | | | | Largely untested. 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>
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