示例#1
0
int radeon_load_a_microcode(const char *fmt, const char *chip_name, void **codep, size_t *sizep)
{
	firmware_handle_t fh;
	char fw_name[30];
	int error;

	snprintf(fw_name, sizeof(fw_name), fmt, chip_name);
	if ((error = firmware_open("radeon", fw_name, &fh)) != 0) {
		DRM_ERROR("Cannot open radeon/%s firmware: %d\n", fw_name, error);
		return error;
	}
	*sizep = firmware_get_size(fh);
	if ((*codep = firmware_malloc(*sizep)) == NULL) {
		DRM_ERROR("Cannot alloc memory for radeon/%s firmware\n", chip_name);
		firmware_close(fh);
		return ENOMEM;
	}
	if ((error = firmware_read(fh, 0, *codep, *sizep)) != 0) {
		DRM_ERROR("Cannot read radeon/%s firmware: %d\n", chip_name, error);
		firmware_free(*codep, *sizep);
	}
	firmware_close(fh);

	return error;
}
示例#2
0
int
stuirda_fwload(struct uirda_softc *sc) {


	int rc;
	firmware_handle_t fh;
	off_t fwsize;
	usb_device_descriptor_t usbddsc;
	usbd_xfer_handle	fwxfer;
	usbd_pipe_handle	fwpipe;
	usbd_status status;
	usb_device_request_t req;
	char *buffer;
	char *p;
	char fwname[12];
	int n;
	u_int8_t *usbbuf;
	/* size_t bsize; */

	printf("%s: needing to download firmware\n",
		device_xname(sc->sc_dev));

	status = usbd_get_device_desc(sc->sc_udev, &usbddsc);
	if (status) {
		printf("%s: can't get device descriptor, status %d\n",
		    device_xname(sc->sc_dev), status);
		return status;
	}

	rc = usbd_get_class_desc(sc->sc_udev, UDESC_IRDA, 0,
		USB_IRDA_DESCRIPTOR_SIZE, &sc->sc_irdadesc);
	printf("error %d reading class desc\n", rc);

	snprintf(fwname, sizeof(fwname), "4210%02x%02x.sb",
		usbddsc.bcdDevice[1],
		usbddsc.bcdDevice[0]);

	printf("%s: Attempting to load firmware %s\n",
		device_xname(sc->sc_dev), fwname);
	
	rc = firmware_open("stuirda", fwname, &fh);

	if (rc) {
		printf("%s: Cannot load firmware\n",
			device_xname(sc->sc_dev));
		return rc;
	}
	fwsize = firmware_get_size(fh);

	printf("%s: Firmware size %lld\n",
		device_xname(sc->sc_dev), (long long)fwsize);

	buffer = firmware_malloc(fwsize);
	if (buffer == NULL) {
		printf("%s: Cannot load firmware: out of memory\n",
			device_xname(sc->sc_dev));
		goto giveup2;
	}

	rc = firmware_read(fh, 0, buffer, (size_t)fwsize);

	if (rc) {
		printf("%s: Cannot read firmware\n", device_xname(sc->sc_dev));
		goto giveup3;
	}

	for (p = buffer + sizeof("Product Version:");
	    p < buffer + fwsize - 5; p++) {

		if (0x1A == *p)
			break;
	}
	if (0x1a != *p || memcmp(p+1, "STMP", 4) != 0) {
		/* firmware bad */
		printf("%s: Bad firmware\n", device_xname(sc->sc_dev));
		goto giveup3;
	}

	p += 5;

	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
	req.bRequest = 2 /* XXX magic */;
	USETW(req.wValue, 0);
	USETW(req.wIndex, 0);
	USETW(req.wLength, 0);
	rc = usbd_do_request(sc->sc_udev, &req, 0);
	if (rc) {
		printf("%s: Cannot switch to f/w d/l mode, error %d\n",
			device_xname(sc->sc_dev), rc);
		goto giveup3;
	}

	delay(100000);

	rc = usbd_open_pipe(sc->sc_iface, sc->sc_wr_addr, 0, &fwpipe);
	if (rc) {
		printf("%s: Cannot open pipe, rc=%d\n",
		    device_xname(sc->sc_dev), rc);
		goto giveup3;
	}
	fwxfer = usbd_alloc_xfer(sc->sc_udev);
	if (fwxfer == NULL) {
		printf("%s: Cannot alloc xfer\n", device_xname(sc->sc_dev));
		goto giveup4;
	}
	usbbuf = usbd_alloc_buffer(fwxfer, 1024);
	if (usbbuf == NULL) {
		printf("%s: Cannot alloc usb buf\n", device_xname(sc->sc_dev));
		goto giveup5;
	}
	n = (buffer + fwsize - p);
	while (n > 0) {
		if (n > 1023)
			n = 1023;
		memcpy(usbbuf, p, n);
		rc = usbd_bulk_transfer(fwxfer, fwpipe,
		    USBD_SYNCHRONOUS|USBD_FORCE_SHORT_XFER,
		    5000, usbbuf, &n, "uirda-fw-wr");
		printf("%s: write: rc=%d, %d left\n",
		    device_xname(sc->sc_dev), rc, n);
		if (rc) {
			printf("%s: write: rc=%d, %d bytes written\n",
			    device_xname(sc->sc_dev), rc, n);
			goto giveup4;
		}
		printf("%s: written %d\n", device_xname(sc->sc_dev), n);
		p += n; 
		n = (buffer + fwsize - p);
	}
	delay(100000);
	/* TODO: more code here */
	rc = 0;
	usbd_free_buffer(fwxfer);

	giveup5: usbd_free_xfer(fwxfer);	
	giveup4: usbd_close_pipe(fwpipe);
	giveup3: firmware_free(buffer, fwsize);
	giveup2: firmware_close(fh);

	return rc;
		
}