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* usb_cdcacm: Set endpoint to NAK before checking byte count.Marti Bolivar2012-08-041-4/+4
| | | | | | Fixes an (admittedly very unlikely) race condition. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Add FIXME for usb_get_ep_tx_count().Marti Bolivar2012-08-041-1/+3
| | | | | | | | | | | We definitely need to mask out the high bits, as RM0008 doesn't specify that they read as zero. Calling this function seems to crash the board, though. I'm not sure why, especially since usb_set_ep_tx_count(), used by usb_cdcacm.c, seems to work. Confusing. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_cdcacm: various fixups.Marti Bolivar2012-08-042-64/+60
| | | | | | | | | | Mark internal state static. Properly reset the RX/TX state on USB reset. Choose better names for countTx and newBytes. Move the exposed configuration back into the .c; this information is not beneficial to hooks. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_cdcacm: Improve write speed.Marti Bolivar2012-08-031-4/+3
| | | | | | | | | Actually fill the TX buffer in the packet memory area, so we can send more bytes per transaction. Using the test-session benchmark, we're now clocking in the high 700KB/sec range via PySerial. With screen, rate is now about 550 KB/sec. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_cdcacm: CosmeticsMarti Bolivar2012-08-031-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_cdcacm: minor fixups.Marti Bolivar2012-08-031-17/+41
| | | | | | | | | | Rename USB_Line_Coding to usb_line_coding, and rename its fields to match the spec to aid searches. Alter the line_coding global to match, fixing an incorrect comment and avoiding magic numbers. Other minor fixups and comment improvements. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_cdcacm: Rename "notification" -> "management".Marti Bolivar2012-08-012-11/+11
| | | | | | This keeps things in line with the specification, helping readability. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Move CDC ACM config. descriptor into usb_cdcacm.c.Marti Bolivar2012-07-312-15/+15
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Move bootloader details out of libmaple.h.Marti Bolivar2012-07-311-8/+0
| | | | | | Finally! Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Move bootloader reset signal detection to Wirish.Marti Bolivar2012-07-312-127/+24
| | | | | | | | Use usb_cdcacm hooks to move the DTR edge and "1EAF" magic packet detection to usb_serial.cpp. We'll later be able to extend this system to support Leonardo-style reset signalling. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_cdcacm: Add usb_cdcacm_peek().Marti Bolivar2012-07-312-27/+39
| | | | | | | | | | | We need this so the bootloader reset signal detector can look ahead in the byte stream without stealing bytes from the user when "1EAF" isn't received. While we're doing this, take the time to fix a bunch of RX-related code (dead code removal, adding volatile, etc.) Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_cdacm: Use config instead of magic numbers.Marti Bolivar2012-07-311-2/+2
| | | | | | Sigh. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_cdcacm: Add hook system.Marti Bolivar2012-07-312-0/+44
| | | | | | | | Provide hooks so users can reach into the CDC ACM callbacks with their own code. We'll use this to move the bootloader reset signals to Wirish. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_cdcacm: Expose some internal configuration and values.Marti Bolivar2012-07-312-84/+93
| | | | | | | | | Mark the API as unstable so people don't rely on these too hard. (This header is not part of the official libmaple docs). We'll need some of this configuration elsewhere later, and it doesn't make much sense to expose it piecemeal. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_cdcacm.c: Add another verification TODO.Marti Bolivar2012-07-311-0/+2
| | | | | | | Not sure what the comment above the new TODO is supposed to mean, but it looks like something that should be checked. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* usb_cdcacm.c: Resolve TODO and improve comments.Marti Bolivar2012-07-311-5/+7
| | | | | | | | | The disc pin code was copy-pasted when the CDC ACM pieces were extracted from the rest of the USB code, and I didn't really understand what was going on when I moved it over. Having checked the spec, the comments can be safely improved. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* <libmaple/scb.h>: Add FIXME to check for F2 compatibility.Marti Bolivar2012-07-131-0/+4
| | | | Signed-off-by: Marti Bolivar <mbolivar@lozenge.(none)>
* <libmaple/scb.h>: Don't use BIT().Marti Bolivar2012-07-131-60/+60
| | | | | | Also, assert copyright LeafLabs 2012. Signed-off-by: Marti Bolivar <mbolivar@lozenge.(none)>
* <libmaple/scb.h>: Assert LeafLabs copyright.Marti Bolivar2012-07-131-0/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@lozenge.(none)>
* ADC: Doxygen fixupsMarti Bolivar2012-06-293-16/+22
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Doxygen hacks and fixups.Marti Bolivar2012-06-288-18/+15
| | | | | | | | - 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>
* Cosmetics.Marti Bolivar2012-06-281-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Bring back and fix up util.c functionality.Marti Bolivar2012-06-261-77/+42
| | | | | | | | | | | | | | | Rip out the existing nonportable pieces, and shove them under wirish/stm32f1, using weak symbols so users who only want libmaple proper don't end up with build errors. Add stubbed-out (and only partially functional) definitions for F2 targets under wirish/stm32f2. The behavior on F103 targets is the same as it was before (though the assertion framework has always been broken and badly needs replacement, that awaits another commit). We additionally now skip re-enabling USB on F1 targets without USB, to make things work on value line MCUs. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* util.c: Fix Doxygen header.Marti Bolivar2012-06-261-1/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Bring back throb().Marti Bolivar2012-06-261-2/+2
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* stm32f1: gpio.h: Add another hack mode macro.Marti Bolivar2012-06-261-0/+1
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/util.c: Add FIXMEs.Marti Bolivar2012-06-261-0/+2
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* I2C: Move CCR/TRISE config helper back to libmaple/i2c.c.Marti Bolivar2012-06-222-37/+41
| | | | | | | | | | | | We can implement it in terms of _i2c_bus_clk() instead of hard-coding STM32_PCLK1. This might be overkill, since I2C peripherals are slow and thus likely to be on APB1 for all STM32 devices (that is the case for F2/F4, for instance), but if we're going to have _i2c_bus_clk(), we might as well respect it. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* <libmaple/i2c.h>: Add I2C_CCR_DUTY bit value definitions.Marti Bolivar2012-06-221-1/+3
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/stm32f1/i2c.c: Add Doxygen file header.Marti Bolivar2012-06-221-0/+5
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* i2c_dev: deprecate .gpio_port.Marti Bolivar2012-06-224-23/+77
| | | | | | | | | | | | | This won't work on F2, which at times has SDA and SCL on different ports (e.g. I2C3 SDA on PC9, SCL on PA8). Add .sda_port and .scl_port replacements, which are used when the now-deprecated .gpio_port is null. Use them correctly everywhere, with some new i2c_private.h helper functionality. Sigh. The F1 I2C code tries too hard to guess what you wanted; it's not porting well at all. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* STM32F1: i2c_config_gpios(): Do afio_remap() if we should.Marti Bolivar2012-06-221-0/+4
| | | | | | This should help avoid surprising some users. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* I2C: Move nonportable CCR/TRISE configuration.Marti Bolivar2012-06-223-33/+44
| | | | | | Do this via new private _i2c_set_ccr_trise(). Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* I2C: Deprecate I2C_REMAP flag.Marti Bolivar2012-06-223-7/+26
| | | | | | | | This is ad-hoc and nonportable. If you really want I2C mapped elsewhere, then mess with the I2C device fields and call afio_remap() yourself. (This is also cleaner for F2). Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* I2C: Move F1-only errata workarounds out of libmaple/i2c.c.Marti Bolivar2012-06-224-30/+57
| | | | | | | | | The IRQ priority hack is unnecessary on targets with properly functioning I2C IRQ handlers, so we shouldn't use it unless we have to. Add a mechanism so a series header can provide such a hack if necessary. Have the F1 series header use this mechanism. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/i2c.c: Cosmetics.Marti Bolivar2012-06-221-188/+190
| | | | | | Move private API to bottom of file. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/i2c.c: Keep authorship straight.Marti Bolivar2012-06-221-0/+1
| | | | | | | I'm going to be moving a lot of code around without changing it soon, so git blame will be unreliable. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* I2C: Add i2c_config_gpios(), i2c_master_release_bus().Marti Bolivar2012-06-223-6/+43
| | | | | | These are necessary to pull out some calls to gpio_set_mode(). Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* <libmaple/i2c.h>: Fix Doxygen.Marti Bolivar2012-06-221-3/+3
| | | | | | | Existing Doxygen was commenting I2C_IRQ_ERROR instead of i2c_enable_irq(), as desired. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/i2c.h: Better comments.Marti Bolivar2012-06-221-2/+16
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/i2c.c: Replace throb() with ASSERT(0).Marti Bolivar2012-06-221-1/+1
| | | | | | Calling throb() directly like that breaks the abstraction. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* I2C: I don't think 10-bit addressing works.Marti Bolivar2012-06-221-0/+3
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* <libmaple/i2c.h>: Move low-level routines to end of file.Marti Bolivar2012-06-221-71/+73
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* I2C: Fix Doxygen F1-isms.Marti Bolivar2012-06-221-3/+6
| | | | | | | | I'm not sure these functions should even exist in their present form,, but I don't understand the code well enough to make a real fix. For now, just replace references to RM0008 with "chip reference manual". Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* i2c_set_input_clk(): fix an F1-ism.Marti Bolivar2012-06-222-1/+26
| | | | | | | | | | | | | | | i2c_set_input_clk()'s documentation says that the maximum peripheral clock frequency is 36 MHz, but that's a hard-coded magic number. The actual limit is the device's APB frequency or 46 MHz, whichever is lower (F2 and F4 share the 46 MHz limit). Fix the documentation to reflect that fact, and add an internal series-provided function to get the maximum clock frequency for a device. To help users porting to F2, have i2c_set_input_clk() assert-check that the provided frequency is less than that maximum value and the hard 46 MHz limit. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* Move i2c_dev and i2c_state into new i2c_common.h.Marti Bolivar2012-06-223-31/+84
| | | | | | | This is necessary to add series-specific infrastructure to clean up some F1-isms in <libmaple/i2c.h>'s inline functions. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/i2c.h: Cosmetics.Marti Bolivar2012-06-221-1/+4
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* I2C: Restore on F1, refactoring prep for F2.Marti Bolivar2012-06-227-63/+171
| | | | | | | | | | | | | | | | | | | | | | | | | Bring back <libmaple/i2c.h> support on STM32F1 with a view towards how it'll be implemented on STM32F2. There are still many F1-isms in libmaple/i2c.c and <libmaple/i2c.h>, to be dealt with subsequently. Move device declarations and base pointer definitions to a new F1 <series/i2c.h>. The register maps and bit definitions themselves are identical on both series, so leave them in the libmaple header. Add i2c_private.h, which contains: - I2C_DEV(), a convenience macro for defining an i2c_dev, and - declarations for the event and error IRQ handlers. The IRQ handlers are large, and I2C is slow anyway, so I see no reason to make them inline in the private header (as we do for some other peripherals). We just expose the existing ones that were formerly static in libmaple/i2c.c, but prefix the names with underscore. Move the device declarations and IRQ handlers into new stm32f1/i2c.c. These use the i2c_private.h API. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* libmaple/i2c.c: Cosmetics.Marti Bolivar2012-06-221-2/+0
| | | | Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
* <libmaple/i2c.h>: Cosmetics.Marti Bolivar2012-06-221-6/+6
| | | | | | Put CCR definitions after SR2, to keep them in register map order. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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