Commit Graph

13 Commits

Author SHA1 Message Date
Gregory Nutt
21859af6d9 Add check of return value in drivers affected by last change: Report the error on a failure to set the bit order. 2016-08-08 08:40:37 -06:00
Gregory Nutt
7d4cb73bd6 STM32 and EFM32 SPI drivers adopted an incompatible conventions somewhere along the line. The set the number of bits to negative when calling SPI_SETBITS which had the magical side-effect of setting LSB first order of bit transmission. This is not only a hokey way to pass control information but is supported by no other SPI drivers.
This change three things:  (1) It adds HWFEAT_LSBFIRST as a new H/W feature.  (2) It changes the implementations of SPI_SETBITS in the STM32 and EFM32 derivers so that negated bit numbers are simply errors and it adds the SPI_HWFEATURES method that can set the LSB bit order, and (3) It changes all calls with negative number of bits from all drivers: The number of bits is now always positive and SPI_HWFEATUREs is called with HWFEAT_LSBFIRST to set the bit order.
2016-08-08 08:28:13 -06:00
Gregory Nutt
24c51ec1ff Centralize definitions associated with CONFIG_DEBUG_LCD 2016-06-15 11:40:33 -06:00
Gregory Nutt
0665c7e06c drivers/: Change some nerr() ERRORS to ninfo() and nwarn() WARNINGS. 2016-06-12 09:26:12 -06:00
Gregory Nutt
a1469a3e95 Add CONFIG_DEBUG_ERROR. Change names of *dbg() * *err() 2016-06-11 15:50:49 -06:00
Gregory Nutt
fc3540cffe Replace all occurrences of vdbg with vinfo 2016-06-11 11:59:51 -06:00
Gregory Nutt
7edf921c5e Remove CONFIG_SPI_OWNBUS: Now it is not just a good idea, it is the law 2016-01-23 18:54:36 -06:00
Gregory Nutt
f6e49caba8 All SPI-based device drivers needs to call SPI_HWFEATURES() with zero in order to co-exist with drivers that use H/W features 2016-01-23 16:18:13 -06:00
Gregory Nutt
cf14f8d1b5 drivers/: Fixes to spacing and alignement 2015-10-10 10:41:00 -06:00
Gregory Nutt
16b32bbadd Standardize the width of all comment boxes in C files 2015-10-03 07:25:53 -06:00
Gregory Nutt
2abe0dd6dd Change all variadic macros to C99 style 2014-05-22 09:01:51 -06:00
Gregory Nutt
3a1324741a More trailing whilespace removal 2014-04-13 14:32:20 -06:00
Gregory Nutt
45d2bf2554 Support for Sharp Memory LCD. From Librae 2013-12-23 16:03:54 -06:00