diff options
Diffstat (limited to 'linux/drivers/media/dvb/dvb-usb/dvb-usb-firmware.c')
| -rw-r--r-- | linux/drivers/media/dvb/dvb-usb/dvb-usb-firmware.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/linux/drivers/media/dvb/dvb-usb/dvb-usb-firmware.c b/linux/drivers/media/dvb/dvb-usb/dvb-usb-firmware.c index 51ce74039..b2670476c 100644 --- a/linux/drivers/media/dvb/dvb-usb/dvb-usb-firmware.c +++ b/linux/drivers/media/dvb/dvb-usb/dvb-usb-firmware.c @@ -74,6 +74,27 @@ static int usb_cypress_load_firmware(struct usb_device *udev, const struct firmw return ret; } +/* + * DViCO bluebird firmware needs the "warm" product ID to be patched into the + * firmware file before download. + */ +#define BLUEBIRD_01_ID_OFFSET 6638 +static int dvb_usb_patch_dvico_firmware(struct usb_device *udev, const struct firmware *fw) +{ + if (fw->size < BLUEBIRD_01_ID_OFFSET + 4) + return -EINVAL; + + if (fw->data[BLUEBIRD_01_ID_OFFSET] == (USB_VID_DVICO & 0xff) && + fw->data[BLUEBIRD_01_ID_OFFSET + 1] == USB_VID_DVICO >> 8) { + fw->data[BLUEBIRD_01_ID_OFFSET + 2] = udev->descriptor.idProduct + 1; + fw->data[BLUEBIRD_01_ID_OFFSET + 3] = udev->descriptor.idProduct >> 8; + + return 0; + } + + return -EINVAL; +} + int dvb_usb_download_firmware(struct usb_device *udev, struct dvb_usb_properties *props) { int ret; @@ -88,6 +109,12 @@ int dvb_usb_download_firmware(struct usb_device *udev, struct dvb_usb_properties info("downloading firmware from file '%s'",props->firmware); + if (le16_to_cpu(udev->descriptor.idVendor) == USB_VID_DVICO) { + ret = dvb_usb_patch_dvico_firmware(udev, fw); + if (ret != 0) + warn("this firmware file not recognised"); + } + switch (props->usb_ctrl) { case CYPRESS_AN2135: case CYPRESS_AN2235: |