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Cleanly validate ICH SPI preopcodes

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The code should work on Linux/*BSD/MacOSX and relies on the serial code
implementation in serial.c. Support for additional platforms (Windows)
will have to be added to serial.c for this to work. For tests without a
Bus Pirate (or with non-functional serial code) it is possible to
#define FAKE_COMMUNICATION in buspirate_spi.c.
Thanks to Sean Nelson for the SPI mode settings code. I tweaked it a bit
to make configuration from a commandline easier should anybody want that
feature.

Tested-by: Sean Nelson <audiohacked@gmail.com>

Corresponding to flashrom svn r772.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Sean Nelson <audiohacked@gmail.com>
This commit is contained in:
Carl-Daniel Hailfinger
2009-11-24 00:20:03 +00:00
parent e51ea10a88
commit 5cca01f394
6 changed files with 413 additions and 1 deletions
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12
flash.h
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@ -103,6 +103,9 @@ enum programmer {
#endif
#if SERPROG_SUPPORT == 1
PROGRAMMER_SERPROG,
#endif
#if BUSPIRATE_SPI_SUPPORT == 1
PROGRAMMER_BUSPIRATESPI,
#endif
PROGRAMMER_INVALID /* This must always be the last entry. */
};
@ -484,6 +487,12 @@ int bitbang_spi_send_command(unsigned int writecnt, unsigned int readcnt, const
int bitbang_spi_read(struct flashchip *flash, uint8_t *buf, int start, int len);
int bitbang_spi_write_256(struct flashchip *flash, uint8_t *buf);
/* buspirate_spi.c */
int buspirate_spi_init(void);
int buspirate_spi_shutdown(void);
int buspirate_spi_send_command(unsigned int writecnt, unsigned int readcnt, const unsigned char *writearr, unsigned char *readarr);
int buspirate_spi_read(struct flashchip *flash, uint8_t *buf, int start, int len);
/* flashrom.c */
extern char *programmer_param;
extern int verbose;
@ -526,6 +535,9 @@ enum spi_controller {
#endif
#if DUMMY_SUPPORT == 1
SPI_CONTROLLER_DUMMY,
#endif
#if BUSPIRATE_SPI_SUPPORT == 1
SPI_CONTROLLER_BUSPIRATE,
#endif
SPI_CONTROLLER_INVALID /* This must always be the last entry. */
};