mjb/altos/src/stm, branch 1.6.5AltOS - the operating system for Altus Metrum products
https://git.ethernal.org/mjb/altos/atom?h=1.6.52016-06-30T02:17:45+00:00altos/stm: clean up ao_exti_enable2016-06-30T02:17:45+00:00Keith Packardkeithp@keithp.com2016-06-29T19:55:30+00:00urn:sha1:c6c250711355ae8060e956e786702be250ef4527
Was computing (1 << pin) twice for no good reason.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: Add better byte-level SPI api2016-06-30T02:17:45+00:00Keith Packardkeithp@keithp.com2016-06-29T01:39:31+00:00urn:sha1:61ad8e5bf428246ac89cad7cb9a1edf2ef735fd5
This provides inline functions for sending and receiving individual
bytes, and setup/finish functions to wrap them in. This make the byte
sending respect the SPI hardware interface requirements.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: Clean up spi_enable/disable_index functions2016-06-30T02:17:45+00:00Keith Packardkeithp@keithp.com2016-06-29T01:37:49+00:00urn:sha1:5866d191cee56949ccab4c154a14604e83163d42
These had an extra level of switch nesting for no good reason.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: move spi execution to common ao_spi_run2016-06-30T02:17:45+00:00Keith Packardkeithp@keithp.com2016-06-28T06:25:01+00:00urn:sha1:5ab4a8b911e254dc829b61cb0abc9fd0b46b84b3
This regularizes SPI hardware use and ensures that the device is
turned off after it has been used and that the status register is back
to 'normal' the next time through.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Add STM SPI debugging2016-06-30T02:17:45+00:00Keith Packardkeithp@keithp.com2016-06-28T06:26:20+00:00urn:sha1:69791ef235161fef404f682fd6955e7eed8dc125
This dumps out the SPI hardware state and history of SPI operations
when compiled with -DDEBUG=1. Without that, this patch does nothing.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos: Add STM DMA debugging2016-06-30T02:17:45+00:00Keith Packardkeithp@keithp.com2016-06-28T00:26:19+00:00urn:sha1:f418584d4d225827e08f56de86055eb3f074f8d1
This provides a command that shows current DMA operations when
compiled with -DDEBUG=1. Without that, this patch has no effect.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: Change ao_spi_send_sync definition to take const source2016-06-30T02:17:45+00:00Keith Packardkeithp@keithp.com2016-06-29T01:25:44+00:00urn:sha1:2e60cd22f6789c94343e6432822cedab028dc1ba
Provides for a bit better error checking.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: Add more SPI status register bits2016-06-30T02:17:45+00:00Keith Packardkeithp@keithp.com2016-06-29T00:15:27+00:00urn:sha1:21a29c7452398e0cca0fb90f99fa42a2a0684668
These weren't the original version of the docs that we had.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: use 0xff for dma mutex value for allocated mutexes2016-06-30T02:17:45+00:00Keith Packardkeithp@keithp.com2016-06-29T00:12:48+00:00urn:sha1:785d2697376ebd20531d22441a60c41bd927b42a
DMA channels which are 'allocated' can't be shared. Instead of using
the value '1' in the related 'mutex', use 0xff which won't match any task.
Signed-off-by: Keith Packard <keithp@keithp.com>
altos/stm: remove ao_dma_abort2016-06-30T02:17:45+00:00Keith Packardkeithp@keithp.com2016-06-29T00:11:38+00:00urn:sha1:0dec7d0885970a7d73468dd77220bae78e161b40
This function isn't used anywhere.
Signed-off-by: Keith Packard <keithp@keithp.com>