diff options
| -rw-r--r-- | ft2232_spi.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/ft2232_spi.c b/ft2232_spi.c index 65ff4490..c963a45b 100644 --- a/ft2232_spi.c +++ b/ft2232_spi.c @@ -159,6 +159,30 @@ static int get_buf(struct ftdi_context *ftdic, const unsigned char *buf, return 0; } +static int ft2232_shutdown(void *data) +{ + int f; + struct ftdi_context *ftdic = (struct ftdi_context *) data; + unsigned char buf[3]; + + msg_pdbg("Releasing I/Os\n"); + buf[0] = SET_BITS_LOW; + buf[1] = 0; /* Output byte ignored */ + buf[2] = 0; /* Pin direction: all inputs */ + if (send_buf(ftdic, buf, 3)) { + msg_perr("Unable to set pins back inputs: (%s)\n", + ftdi_get_error_string(ftdic)); + } + + if ((f = ftdi_usb_close(ftdic)) < 0) { + msg_perr("Unable to close FTDI device: %d (%s)\n", f, + ftdi_get_error_string(ftdic)); + return f; + } + + return 0; +} + static int ft2232_spi_send_command(const struct flashctx *flash, unsigned int writecnt, unsigned int readcnt, const unsigned char *writearr, @@ -453,6 +477,7 @@ int ft2232_spi_init(void) goto ftdi_err; } + register_shutdown(ft2232_shutdown, ftdic); register_spi_master(&spi_master_ft2232); return 0; |