mjb/altos/src/ao_spi.c, branch teleterraAltOS - the operating system for Altus Metrum products
https://git.ethernal.org/mjb/altos/atom?h=teleterra2010-11-02T00:30:49+00:00altos: Split out SPI driver. Add Numonyx M25P driver for TT.2010-11-02T00:30:49+00:00Keith Packardkeithp@keithp.com2010-11-02T00:30:49+00:00urn:sha1:3d70461d5860ce8b86ecf900925e2b48f19ce040
For TT (and TM with the companion connector), the SPI bus will be
shared among multiple devices. Split out the existing SPI code into a
common driver, with the SPI bus protected by a mutex.
Add the Numonyx M25Pxx driver to support the flash chips on TT and
newer TM versions. This is not yet integrated into the TM code.
Signed-off-by: Keith Packard <keithp@keithp.com>