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Patch_or_Contribution requested: [Bug 1000781] incomplete register flag declarations for AT91 SPI status register
- From: bugzilla-daemon at ecoscentric dot com
- To: ecos-patches at sources dot redhat dot com
- Date: Sat, 23 May 2009 18:01:41 +0100
- Subject: Patch_or_Contribution requested: [Bug 1000781] incomplete register flag declarations for AT91 SPI status register
Peter Niebert <peter@niebert.com> has asked for Patch_or_Contribution:
Bug 1000781: incomplete register flag declarations for AT91 SPI status register
http://bugs.ecos.sourceware.org/show_bug.cgi?id=1000781
------- Additional Comments from Peter Niebert <peter@niebert.com>
hal/arm/at91/var/current/include/var_io.h lists a certain number of flags of
the SPI status register:
#define AT91_SPI_SR_RDRF 0x00000001 // Receive Data Register Full
#define AT91_SPI_SR_TDRE 0x00000002 // Tx Data Register Empty
#define AT91_SPI_SR_MODF 0x00000004 // Mode Fault Error
#define AT91_SPI_SR_OVRES 0x00000008 // Overrun Error Status
#define AT91_SPI_SR_ENDRX 0x00000010 // End of Receiver Transfer
#define AT91_SPI_SR_ENDTX 0x00000020 // End of Transmitter Transfer
For obcure reasons, the four remaining flags are not declared and should be
added as follows:
#define AT91_SPI_SR_RXBUFF 0x00000040 // RX Buffer Full
#define AT91_SPI_SR_TXBUFE 0x00000080 // TX Buffer Empty
#define AT91_SPI_SR_NSSR 0x00000100 // NSS Rising
#define AT91_SPI_SR_TXEMPTY 0x00000200 // Transmission Registers
Empty
Attached is the modified file hal/arm/at91/var/current/include/var_io.h