1 files changed, 144 insertions, 0 deletions
diff --git a/drivers/staging/vt6656/firmware.c b/drivers/staging/vt6656/firmware.c
new file mode 100644
index 00000000000..1159f0b3457
--- /dev/null
+++ b/drivers/staging/vt6656/firmware.c
@@ -0,0 +1,144 @@
+/*
+ * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ *
+ * File: baseband.c
+ *
+ * Purpose: Implement functions to access baseband
+ *
+ * Author: Yiching Chen
+ *
+ * Date: May 20, 2004
+ *
+ * Functions:
+ *
+ * Revision History:
+ *
+ */
+
+#include <linux/compiler.h>
+#include "firmware.h"
+#include "usbpipe.h"
+
+static int msglevel = MSG_LEVEL_INFO;
+/* static int msglevel = MSG_LEVEL_DEBUG; */
+
+#define FIRMWARE_VERSION	0x133		/* version 1.51 */
+#define FIRMWARE_NAME		"vntwusb.fw"
+
+#define FIRMWARE_CHUNK_SIZE	0x400
+
+int FIRMWAREbDownload(struct vnt_private *pDevice)
+{
+	struct device *dev = &pDevice->usb->dev;
+	const struct firmware *fw;
+	int NdisStatus;
+	void *pBuffer = NULL;
+	bool result = false;
+	u16 wLength;
+	int ii, rc;
+
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Download firmware\n");
+
+	rc = request_firmware(&fw, FIRMWARE_NAME, dev);
+	if (rc) {
+		dev_err(dev, "firmware file %s request failed (%d)\n",
+			FIRMWARE_NAME, rc);
+			goto out;
+	}
+
+	pBuffer = kmalloc(FIRMWARE_CHUNK_SIZE, GFP_KERNEL);
+	if (!pBuffer)
+		goto out;
+
+	for (ii = 0; ii < fw->size; ii += FIRMWARE_CHUNK_SIZE) {
+		wLength = min_t(int, fw->size - ii, FIRMWARE_CHUNK_SIZE);
+		memcpy(pBuffer, fw->data + ii, wLength);
+
+		NdisStatus = vnt_control_out(pDevice,
+						0,
+						0x1200+ii,
+						0x0000,
+						wLength,
+						pBuffer);
+
+		DBG_PRT(MSG_LEVEL_DEBUG,
+			KERN_INFO"Download firmware...%d %zu\n", ii, fw->size);
+		if (NdisStatus != STATUS_SUCCESS)
+			goto free_fw;
+	}
+
+	result = true;
+free_fw:
+	release_firmware(fw);
+
+out:
+	kfree(pBuffer);
+
+	return result;
+}
+MODULE_FIRMWARE(FIRMWARE_NAME);
+
+int FIRMWAREbBrach2Sram(struct vnt_private *pDevice)
+{
+	int NdisStatus;
+
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Branch to Sram\n");
+
+	NdisStatus = vnt_control_out(pDevice,
+					1,
+					0x1200,
+					0x0000,
+					0,
+					NULL);
+	if (NdisStatus != STATUS_SUCCESS)
+		return false;
+	else
+		return true;
+}
+
+int FIRMWAREbCheckVersion(struct vnt_private *pDevice)
+{
+	int ntStatus;
+
+	ntStatus = vnt_control_in(pDevice,
+					MESSAGE_TYPE_READ,
+					0,
+					MESSAGE_REQUEST_VERSION,
+					2,
+					(u8 *) &(pDevice->wFirmwareVersion));
+
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n",
+						pDevice->wFirmwareVersion);
+	if (ntStatus != STATUS_SUCCESS) {
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Invalid.\n");
+		return false;
+	}
+	if (pDevice->wFirmwareVersion == 0xFFFF) {
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"In Loader.\n");
+		return false;
+	}
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n",
+						pDevice->wFirmwareVersion);
+	if (pDevice->wFirmwareVersion < FIRMWARE_VERSION) {
+		/* branch to loader for download new firmware */
+		FIRMWAREbBrach2Sram(pDevice);
+		return false;
+	}
+	return true;
+}