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Bus Pirate support needs serial communication

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Serprog already has such functionality, so it makes sense to share that.
TODO: Factor out serial communication into a separate file, have that
code be available even if serprog is not selected and make it portable
(it is very Linux-centric right now).

Corresponding to flashrom svn r768.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
This commit is contained in:
Carl-Daniel Hailfinger 2009-11-21 11:02:48 +00:00
parent 01d49ed39d
commit a4a9bfb228
2 changed files with 8 additions and 9 deletions
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3
flash.h
View File

@ -736,5 +736,8 @@ void serprog_chip_writeb(uint8_t val, chipaddr addr);
uint8_t serprog_chip_readb(const chipaddr addr);
void serprog_chip_readn(uint8_t *buf, const chipaddr addr, size_t len);
void serprog_delay(int delay);
void sp_flush_incoming(void);
int sp_openserport(char *dev, unsigned int baud);
extern int sp_fd;
#endif /* !__FLASH_H__ */

14
serprog.c
View File

@ -61,7 +61,7 @@
#define S_CMD_Q_RDNMAXLEN 0x11 /* Query read-n maximum length */
#define S_CMD_S_BUSTYPE 0x12 /* Set used bustype(s). */
static int sp_fd;
int sp_fd;
static uint16_t sp_device_serbuf_size = 16;
static uint16_t sp_device_opbuf_size = 300;
@ -185,7 +185,7 @@ static const struct baudentry sp_baudtable[] = {
{0, 0} /* Terminator */
};
static int sp_openserport(char *dev, unsigned int baud)
int sp_openserport(char *dev, unsigned int baud)
{
struct termios options;
int fd, i;
@ -208,20 +208,16 @@ static int sp_openserport(char *dev, unsigned int baud)
break;
}
}
options.c_cflag &= ~PARENB;
options.c_cflag &= ~CSTOPB;
options.c_cflag &= ~CSIZE;
options.c_cflag |= CS8;
options.c_cflag &= ~CRTSCTS;
options.c_cflag &= ~(PARENB | CSTOPB | CSIZE | CRTSCTS);
options.c_cflag |= (CS8 | CLOCAL | CREAD);
options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
options.c_iflag &= ~(IXON | IXOFF | IXANY | ICRNL | IGNCR | INLCR);
options.c_oflag &= ~OPOST;
options.c_cflag |= (CLOCAL | CREAD);
tcsetattr(fd, TCSANOW, &options);
return fd;
}
static void sp_flush_incoming(void)
void sp_flush_incoming(void)
{
int i;
for (i=0;i<100;i++) { /* In case the device doesnt do EAGAIN, just read 0 */