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* Check during SPI bitbang init that SPI bitbang master configuration is correctCarl-Daniel Hailfinger2010-07-181-0/+10
| | | | | | | Corresponding to flashrom svn r1092. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
* Use struct pointer instead of enum to set bitbang adapterMichael Karcher2010-07-171-17/+6
| | | | | | | Corresponding to flashrom svn r1091. Signed-off-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
* Refine SPI bitbangingCarl-Daniel Hailfinger2010-07-171-11/+20
| | | | | | | | | | | | | | | Change the SPI bitbanging core to fix a subtle bug (which had no effect so far) and to make integration of the RayeR SPIPGM and Nvidia MCP6x/MCP7x SPI patches easier. Kill a few global variables and require explicit initialization of bitbanging delay. A big to Johannes Sjölund for testing an earlier version of the code as part of the Nvidia MCP6x/MCP7x SPI bitbanging patch. Corresponding to flashrom svn r1085. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
* Remove temporary buffers from bitbangingMichael Karcher2010-07-171-38/+5
| | | | | | | | | | | | | This removes the need of allocating an extra buffer, but also removes the possibility of having the data read back during the initial write phase for debugging purposes. Compile tested, no functional testing. Corresponding to flashrom svn r1084. Signed-off-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
* Use generic unlocking infrastructure for SPI chipsCarl-Daniel Hailfinger2010-07-141-1/+0
| | | | | | | | | Actually check if the unlock worked instead of just assuming it worked. Corresponding to flashrom svn r1082. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
* Convert SPI chips to partial writeCarl-Daniel Hailfinger2010-07-141-5/+3
| | | | | | | | | | However, wrap the write functions in a compat layer to allow converting the rest of flashrom later. Tested on Intel NM10 by David Hendricks. Corresponding to flashrom svn r1080. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
* Introduce a generic SPI read function: spi_write_chunked()Carl-Daniel Hailfinger2010-05-211-19/+2
| | | | | | | | | | | | | | | Every SPI programmer driver had its own completely different chip write implementation, and all of them were insufficiently commented. Create spi_write_chunked as a copy of spi_read_chunked and convert all SPI programmers to use it. No functional changes except: - Bus Pirate uses 12 Byte writes instead of 8 Byte writes - SB600 uses 5 Byte writes instead of 1 Byte writes Corresponding to flashrom svn r1005. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de> Acked-by: David Hendricks <dhendrix@google.com>
* Split spi.c into programmer and chip code Remove chipdriver.h include from ↵Sean Nelson2010-02-261-0/+1
| | | | | | | | | | | | | | | | | | | flash.h Some of the spi programmer drivers required chipdrivers.h, needs fixing later: it87spi.c ichspi.c sb600spi.c wbsio_spi.c buspirate_spi.c ft2232spi.c bitbang_spi.c dediprog.c Corresponding to flashrom svn r914. Signed-off-by: Sean Nelson <audiohacked@gmail.com> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
* Convert all messages in bitbang_spi.c to the new message infrastructureSean Nelson2010-01-091-4/+4
| | | | | | | Corresponding to flashrom svn r852. Signed-off-by: Sean Nelson <audiohacked@gmail.com> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
* Reduce realloc syscall overhead for FT2232 and bitbangCarl-Daniel Hailfinger2009-11-251-2/+5
| | | | | | | | | | | | FT2232 ran realloc() for every executed command. Start with a big enough buffer and don't touch buffer size unless it needs to grow. Bitbang was slightly better: It only ran realloc() if buffer size changed. Still, the solution above improves performance and reliability. Corresponding to flashrom svn r780. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Sean Nelson <audiohacked@gmail.com>
* Make bitbang_spi naming consistentCarl-Daniel Hailfinger2009-10-011-26/+26
| | | | | | | Corresponding to flashrom svn r741. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
* This is the bitbanging SPI driver infrastructureCarl-Daniel Hailfinger2009-09-281-0/+161
If you want support for a particular piece of hardware, just fill in a few functions in spi_bitbang_master_table. That's it. On top of this, the RayeR SPI flasher should be supportable in ~20 LOC. Tested, trace looks OK. Corresponding to flashrom svn r736. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
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