diff options
Diffstat (limited to 'buspirate_spi.c')
| -rw-r--r-- | buspirate_spi.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/buspirate_spi.c b/buspirate_spi.c index 04b8fdec2..bfd0e0523 100644 --- a/buspirate_spi.c +++ b/buspirate_spi.c @@ -326,6 +326,7 @@ static int buspirate_spi_init(void) int serialspeed_index = -1; int ret = 0; int pullup = 0; + int psu = 0; unsigned char *bp_commbuf; int bp_commbufsize; @@ -377,6 +378,17 @@ static int buspirate_spi_init(void) } free(tmp); + tmp = extract_programmer_param("psus"); + if (tmp) { + if (strcasecmp("on", tmp) == 0) + psu = 1; + else if (strcasecmp("off", tmp) == 0) + ; // ignore + else + msg_perr("Invalid psus state, not enabling.\n"); + } + free(tmp); + /* Default buffer size is 19: 16 bytes data, 3 bytes control. */ #define DEFAULT_BUFSIZE (16 + 3) bp_commbuf = malloc(DEFAULT_BUFSIZE); @@ -638,6 +650,10 @@ static int buspirate_spi_init(void) bp_commbuf[0] |= (1 << 2); msg_pdbg("Enabling pull-up resistors.\n"); } + if (psu == 1) { + bp_commbuf[0] |= (1 << 3); + msg_pdbg("Enabling PSUs.\n"); + } ret = buspirate_sendrecv(bp_commbuf, 1, 1); if (ret) { ret = 1; |