X-Git-Url: http://developer.intra2net.com/git/?a=blobdiff_plain;f=src%2Fftdi.c;h=1f45e95cd481c9965b8801e1e768eef4449663e7;hb=cd2ead2f23cea38de6fdbf2459c79cb4936fbf8d;hp=17d1d0fd3e6e696f3543ad9feeada8dd5ae2f102;hpb=b790d38e9fac3e2144293a84bfc6de72b01a6c6d;p=libftdi diff --git a/src/ftdi.c b/src/ftdi.c index 17d1d0f..1f45e95 100644 --- a/src/ftdi.c +++ b/src/ftdi.c @@ -1902,21 +1902,19 @@ int ftdi_read_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunks return 0; } - /** - Enable bitbang mode. - - \deprecated use \ref ftdi_set_bitmode with mode BITMODE_BITBANG instead + Enable/disable bitbang modes. \param ftdi pointer to ftdi_context \param bitmask Bitmask to configure lines. HIGH/ON value configures a line as output. + \param mode Bitbang mode: use the values defined in \ref ftdi_mpsse_mode \retval 0: all fine \retval -1: can't enable bitbang mode \retval -2: USB device unavailable */ -int ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask) +int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode) { unsigned short usb_val; @@ -1924,15 +1922,12 @@ int ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask) ftdi_error_return(-2, "USB device unavailable"); usb_val = bitmask; // low byte: bitmask - /* FT2232C: Set bitbang_mode to 2 to enable SPI */ - usb_val |= (ftdi->bitbang_mode << 8); - - if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, - SIO_SET_BITMODE_REQUEST, usb_val, ftdi->index, - NULL, 0, ftdi->usb_write_timeout) < 0) - ftdi_error_return(-1, "unable to enter bitbang mode. Perhaps not a BM type chip?"); + usb_val |= (mode << 8); + if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_SET_BITMODE_REQUEST, usb_val, ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) + ftdi_error_return(-1, "unable to configure bitbang mode. Perhaps not a BM/2232C type chip?"); - ftdi->bitbang_enabled = 1; + ftdi->bitbang_mode = mode; + ftdi->bitbang_enabled = (mode == BITMODE_RESET) ? 0 : 1; return 0; } @@ -1957,34 +1952,6 @@ int ftdi_disable_bitbang(struct ftdi_context *ftdi) return 0; } -/** - Enable/disable bitbang modes. - - \param ftdi pointer to ftdi_context - \param bitmask Bitmask to configure lines. - HIGH/ON value configures a line as output. - \param mode Bitbang mode: use the values defined in \ref ftdi_mpsse_mode - - \retval 0: all fine - \retval -1: can't enable bitbang mode - \retval -2: USB device unavailable -*/ -int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode) -{ - unsigned short usb_val; - - if (ftdi == NULL || ftdi->usb_dev == NULL) - ftdi_error_return(-2, "USB device unavailable"); - - usb_val = bitmask; // low byte: bitmask - usb_val |= (mode << 8); - if (libusb_control_transfer(ftdi->usb_dev, FTDI_DEVICE_OUT_REQTYPE, SIO_SET_BITMODE_REQUEST, usb_val, ftdi->index, NULL, 0, ftdi->usb_write_timeout) < 0) - ftdi_error_return(-1, "unable to configure bitbang mode. Perhaps not a 2232C type chip?"); - - ftdi->bitbang_mode = mode; - ftdi->bitbang_enabled = (mode == BITMODE_RESET) ? 0 : 1; - return 0; -} /** Directly read pin state, circumventing the read buffer. Useful for bitbang mode.