drivers/staging/bcm/InterfaceDld.c - linux - Git at Google

 #include "headers.h"

 int InterfaceFileDownload(PVOID arg, struct file *flp, unsigned int on_chip_loc)
 {
 	/* unsigned int reg = 0; */
 	mm_segment_t oldfs = {0};
 	int errno = 0, len = 0; /* ,is_config_file = 0 */
 	loff_t pos = 0;
 	struct bcm_interface_adapter *psIntfAdapter = (struct bcm_interface_adapter *)arg;
 	/* struct bcm_mini_adapter *Adapter = psIntfAdapter->psAdapter; */
 	char *buff = kmalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_KERNEL);

 	if (!buff)
 		return -ENOMEM;

 	while (1) {
 		oldfs = get_fs();
 		set_fs(get_ds());
 		len = vfs_read(flp, (void __force __user *)buff,
 			MAX_TRANSFER_CTRL_BYTE_USB, &pos);
 		set_fs(oldfs);
 		if (len <= 0) {
 			if (len < 0) {
 				BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
 						DBG_TYPE_INITEXIT, MP_INIT,
 						DBG_LVL_ALL, "len < 0");
 				errno = len;
 			} else {
 				errno = 0;
 				BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
 						DBG_TYPE_INITEXIT, MP_INIT,
 						DBG_LVL_ALL,
 						"Got end of file!");
 			}
 			break;
 		}
 		/* BCM_DEBUG_PRINT_BUFFER(Adapter,DBG_TYPE_INITEXIT, MP_INIT,
 		 *			  DBG_LVL_ALL, buff,
 		 *			  MAX_TRANSFER_CTRL_BYTE_USB);
 		 */
 		errno = InterfaceWRM(psIntfAdapter, on_chip_loc, buff, len);
 		if (errno) {
 			BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
 					DBG_TYPE_PRINTK, 0, 0,
 					"WRM Failed! status: %d", errno);
 			break;
 		}
 		on_chip_loc += MAX_TRANSFER_CTRL_BYTE_USB;
 	}

 	kfree(buff);
 	return errno;
 }

 int InterfaceFileReadbackFromChip(PVOID arg, struct file *flp, unsigned int on_chip_loc)
 {
 	char *buff, *buff_readback;
 	unsigned int reg = 0;
 	mm_segment_t oldfs = {0};
 	int errno = 0, len = 0, is_config_file = 0;
 	loff_t pos = 0;
 	static int fw_down;
 	INT Status = STATUS_SUCCESS;
 	struct bcm_interface_adapter *psIntfAdapter = (struct bcm_interface_adapter *)arg;
 	int bytes;

 	buff = kmalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_DMA);
 	buff_readback = kmalloc(MAX_TRANSFER_CTRL_BYTE_USB , GFP_DMA);
 	if (!buff || !buff_readback) {
 		kfree(buff);
 		kfree(buff_readback);

 		return -ENOMEM;
 	}

 	is_config_file = (on_chip_loc == CONFIG_BEGIN_ADDR) ? 1 : 0;

 	memset(buff_readback, 0, MAX_TRANSFER_CTRL_BYTE_USB);
 	memset(buff, 0, MAX_TRANSFER_CTRL_BYTE_USB);
 	while (1) {
 		oldfs = get_fs();
 		set_fs(get_ds());
 		len = vfs_read(flp, (void __force __user *)buff, MAX_TRANSFER_CTRL_BYTE_USB, &pos);
 		set_fs(oldfs);
 		fw_down++;

 		if (len <= 0) {
 			if (len < 0) {
 				BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "len < 0");
 				errno = len;
 			} else {
 				errno = 0;
 				BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Got end of file!");
 			}
 			break;
 		}

 		bytes = InterfaceRDM(psIntfAdapter, on_chip_loc, buff_readback, len);
 		if (bytes < 0) {
 			Status = bytes;
 			BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "RDM of len %d Failed! %d", len, reg);
 			goto exit;
 		}
 		reg++;
 		if ((len-sizeof(unsigned int)) < 4) {
 			if (memcmp(buff_readback, buff, len)) {
 				BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Firmware Download is not proper %d", fw_down);
 				BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Length is: %d", len);
 				Status = -EIO;
 				goto exit;
 			}
 		} else {
 			len -= 4;

 			while (len) {
 				if (*(unsigned int *)&buff_readback[len] != *(unsigned int *)&buff[len]) {
 					BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Firmware Download is not proper %d", fw_down);
 					BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Val from Binary %x, Val From Read Back %x ", *(unsigned int *)&buff[len], *(unsigned int*)&buff_readback[len]);
 					BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "len =%x!!!", len);
 					Status = -EIO;
 					goto exit;
 				}
 				len -= 4;
 			}
 		}
 		on_chip_loc += MAX_TRANSFER_CTRL_BYTE_USB;
 	} /* End of while(1) */

 exit:
 	kfree(buff);
 	kfree(buff_readback);
 	return Status;
 }

 static int bcm_download_config_file(struct bcm_mini_adapter *Adapter, struct bcm_firmware_info *psFwInfo)
 {
 	int retval = STATUS_SUCCESS;
 	B_UINT32 value = 0;

 	if (Adapter->pstargetparams == NULL) {
 		Adapter->pstargetparams = kmalloc(sizeof(struct bcm_target_params), GFP_KERNEL);
 		if (Adapter->pstargetparams == NULL)
 			return -ENOMEM;
 	}

 	if (psFwInfo->u32FirmwareLength != sizeof(struct bcm_target_params))
 		return -EIO;

 	retval = copy_from_user(Adapter->pstargetparams, psFwInfo->pvMappedFirmwareAddress, psFwInfo->u32FirmwareLength);
 	if (retval) {
 		kfree(Adapter->pstargetparams);
 		Adapter->pstargetparams = NULL;
 		return -EFAULT;
 	}

 	/* Parse the structure and then Download the Firmware */
 	beceem_parse_target_struct(Adapter);

 	/* Initializing the NVM. */
 	BcmInitNVM(Adapter);
 	retval = InitLedSettings(Adapter);

 	if (retval) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "INIT LED Failed\n");
 		return retval;
 	}

 	if (Adapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) {
 		Adapter->LEDInfo.bLedInitDone = FALSE;
 		Adapter->DriverState = DRIVER_INIT;
 		wake_up(&Adapter->LEDInfo.notify_led_event);
 	}

 	if (Adapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) {
 		Adapter->DriverState = FW_DOWNLOAD;
 		wake_up(&Adapter->LEDInfo.notify_led_event);
 	}

 	/* Initialize the DDR Controller */
 	retval = ddr_init(Adapter);
 	if (retval) {
 		BCM_DEBUG_PRINT (Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "DDR Init Failed\n");
 		return retval;
 	}

 	value = 0;
 	wrmalt(Adapter, EEPROM_CAL_DATA_INTERNAL_LOC - 4, &value, sizeof(value));
 	wrmalt(Adapter, EEPROM_CAL_DATA_INTERNAL_LOC - 8, &value, sizeof(value));

 	if (Adapter->eNVMType == NVM_FLASH) {
 		retval = PropagateCalParamsFromFlashToMemory(Adapter);
 		if (retval) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "propagaion of cal param failed with status :%d", retval);
 			return retval;
 		}
 	}

 	retval = buffDnldVerify(Adapter, (PUCHAR)Adapter->pstargetparams, sizeof(struct bcm_target_params), CONFIG_BEGIN_ADDR);

 	if (retval)
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "configuration file not downloaded properly");
 	else
 		Adapter->bCfgDownloaded = TRUE;

 	return retval;
 }

 int bcm_ioctl_fw_download(struct bcm_mini_adapter *Adapter, struct bcm_firmware_info *psFwInfo)
 {
 	int retval = STATUS_SUCCESS;
 	PUCHAR buff = NULL;

 	/* Config File is needed for the Driver to download the Config file and
 	 * Firmware. Check for the Config file to be first to be sent from the
 	 * Application
 	 */
 	atomic_set(&Adapter->uiMBupdate, FALSE);
 	if (!Adapter->bCfgDownloaded && psFwInfo->u32StartingAddress != CONFIG_BEGIN_ADDR) {
 		/* Can't Download Firmware. */
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Download the config File first\n");
 		return -EINVAL;
 	}

 	/* If Config File, Finish the DDR Settings and then Download CFG File */
 	if (psFwInfo->u32StartingAddress == CONFIG_BEGIN_ADDR) {
 		retval = bcm_download_config_file(Adapter, psFwInfo);
 	} else {
 		buff = kzalloc(psFwInfo->u32FirmwareLength, GFP_KERNEL);
 		if (buff == NULL) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Failed in allocation memory");
 			return -ENOMEM;
 		}

 		retval = copy_from_user(buff, psFwInfo->pvMappedFirmwareAddress, psFwInfo->u32FirmwareLength);
 		if (retval != STATUS_SUCCESS) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "copying buffer from user space failed");
 			retval = -EFAULT;
 			goto error;
 		}

 		retval = buffDnldVerify(Adapter,
 					buff,
 					psFwInfo->u32FirmwareLength,
 					psFwInfo->u32StartingAddress);

 		if (retval != STATUS_SUCCESS) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "f/w download failed status :%d", retval);
 			goto error;
 		}
 	}

 error:
 	kfree(buff);
 	return retval;
 }

 static INT buffDnld(struct bcm_mini_adapter *Adapter, PUCHAR mappedbuffer, UINT u32FirmwareLength, ULONG u32StartingAddress)
 {
 	unsigned int len = 0;
 	int retval = STATUS_SUCCESS;
 	len = u32FirmwareLength;

 	while (u32FirmwareLength) {
 		len = MIN_VAL(u32FirmwareLength, MAX_TRANSFER_CTRL_BYTE_USB);
 		retval = wrm(Adapter, u32StartingAddress, mappedbuffer, len);

 		if (retval) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "wrm failed with status :%d", retval);
 			break;
 		}
 		u32StartingAddress += len;
 		u32FirmwareLength -= len;
 		mappedbuffer += len;
 	}
 	return retval;
 }

 static INT buffRdbkVerify(struct bcm_mini_adapter *Adapter, PUCHAR mappedbuffer, UINT u32FirmwareLength, ULONG u32StartingAddress)
 {
 	UINT len = u32FirmwareLength;
 	INT retval = STATUS_SUCCESS;
 	PUCHAR readbackbuff = kzalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_KERNEL);
 	int bytes;

 	if (NULL == readbackbuff) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "MEMORY ALLOCATION FAILED");
 		return -ENOMEM;
 	}

 	while (u32FirmwareLength && !retval) {
 		len = MIN_VAL(u32FirmwareLength, MAX_TRANSFER_CTRL_BYTE_USB);
 		bytes = rdm(Adapter, u32StartingAddress, readbackbuff, len);

 		if (bytes < 0) {
 			retval = bytes;
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "rdm failed with status %d", retval);
 			break;
 		}

 		if (memcmp(readbackbuff, mappedbuffer, len) != 0) {
 			pr_err("%s() failed.  The firmware doesn't match what was written",
 			       __func__);
 			retval = -EIO;
 		}

 		u32StartingAddress += len;
 		u32FirmwareLength -= len;
 		mappedbuffer += len;

 	} /* end of while (u32FirmwareLength && !retval) */
 	kfree(readbackbuff);
 	return retval;
 }

 INT buffDnldVerify(struct bcm_mini_adapter *Adapter, unsigned char *mappedbuffer, unsigned int u32FirmwareLength, unsigned long u32StartingAddress)
 {
 	INT status = STATUS_SUCCESS;

 	status = buffDnld(Adapter, mappedbuffer, u32FirmwareLength, u32StartingAddress);
 	if (status != STATUS_SUCCESS) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Buffer download failed");
 		goto error;
 	}

 	status = buffRdbkVerify(Adapter, mappedbuffer, u32FirmwareLength, u32StartingAddress);
 	if (status != STATUS_SUCCESS) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Buffer readback verifier failed");
 		goto error;
 	}
 error:
 	return status;
 }
	#include "headers.h"

	int InterfaceFileDownload(PVOID arg, struct file *flp, unsigned int on_chip_loc)
	{
	/* unsigned int reg = 0; */
	mm_segment_t oldfs = {0};
	int errno = 0, len = 0; /* ,is_config_file = 0 */
	loff_t pos = 0;
	struct bcm_interface_adapter psIntfAdapter = (struct bcm_interface_adapter )arg;
	/* struct bcm_mini_adapter Adapter = psIntfAdapter->psAdapter; /
	char *buff = kmalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_KERNEL);

	if (!buff)
	return -ENOMEM;

	while (1) {
	oldfs = get_fs();
	set_fs(get_ds());
	len = vfs_read(flp, (void __force __user *)buff,
	MAX_TRANSFER_CTRL_BYTE_USB, &pos);
	set_fs(oldfs);
	if (len <= 0) {
	if (len < 0) {
	BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
	DBG_TYPE_INITEXIT, MP_INIT,
	DBG_LVL_ALL, "len < 0");
	errno = len;
	} else {
	errno = 0;
	BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
	DBG_TYPE_INITEXIT, MP_INIT,
	DBG_LVL_ALL,
	"Got end of file!");
	}
	break;
	}
	/* BCM_DEBUG_PRINT_BUFFER(Adapter,DBG_TYPE_INITEXIT, MP_INIT,
	* DBG_LVL_ALL, buff,
	* MAX_TRANSFER_CTRL_BYTE_USB);
	*/
	errno = InterfaceWRM(psIntfAdapter, on_chip_loc, buff, len);
	if (errno) {
	BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
	DBG_TYPE_PRINTK, 0, 0,
	"WRM Failed! status: %d", errno);
	break;
	}
	on_chip_loc += MAX_TRANSFER_CTRL_BYTE_USB;
	}

	kfree(buff);
	return errno;
	}

	int InterfaceFileReadbackFromChip(PVOID arg, struct file *flp, unsigned int on_chip_loc)
	{
	char buff, buff_readback;
	unsigned int reg = 0;
	mm_segment_t oldfs = {0};
	int errno = 0, len = 0, is_config_file = 0;
	loff_t pos = 0;
	static int fw_down;
	INT Status = STATUS_SUCCESS;
	struct bcm_interface_adapter psIntfAdapter = (struct bcm_interface_adapter )arg;
	int bytes;

	buff = kmalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_DMA);
	buff_readback = kmalloc(MAX_TRANSFER_CTRL_BYTE_USB , GFP_DMA);
	if (!buff \|\| !buff_readback) {
	kfree(buff);
	kfree(buff_readback);

	return -ENOMEM;
	}

	is_config_file = (on_chip_loc == CONFIG_BEGIN_ADDR) ? 1 : 0;

	memset(buff_readback, 0, MAX_TRANSFER_CTRL_BYTE_USB);
	memset(buff, 0, MAX_TRANSFER_CTRL_BYTE_USB);
	while (1) {
	oldfs = get_fs();
	set_fs(get_ds());
	len = vfs_read(flp, (void __force __user *)buff, MAX_TRANSFER_CTRL_BYTE_USB, &pos);
	set_fs(oldfs);
	fw_down++;

	if (len <= 0) {
	if (len < 0) {
	BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "len < 0");
	errno = len;
	} else {
	errno = 0;
	BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Got end of file!");
	}
	break;
	}

	bytes = InterfaceRDM(psIntfAdapter, on_chip_loc, buff_readback, len);
	if (bytes < 0) {
	Status = bytes;
	BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "RDM of len %d Failed! %d", len, reg);
	goto exit;
	}
	reg++;
	if ((len-sizeof(unsigned int)) < 4) {
	if (memcmp(buff_readback, buff, len)) {
	BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Firmware Download is not proper %d", fw_down);
	BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Length is: %d", len);
	Status = -EIO;
	goto exit;
	}
	} else {
	len -= 4;

	while (len) {
	if ((unsigned int )&buff_readback[len] != (unsigned int )&buff[len]) {
	BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Firmware Download is not proper %d", fw_down);
	BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Val from Binary %x, Val From Read Back %x ", (unsigned int )&buff[len], (unsigned int)&buff_readback[len]);
	BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "len =%x!!!", len);
	Status = -EIO;
	goto exit;
	}
	len -= 4;
	}
	}
	on_chip_loc += MAX_TRANSFER_CTRL_BYTE_USB;
	} /* End of while(1) */

	exit:
	kfree(buff);
	kfree(buff_readback);
	return Status;
	}

	static int bcm_download_config_file(struct bcm_mini_adapter Adapter, struct bcm_firmware_info psFwInfo)
	{
	int retval = STATUS_SUCCESS;
	B_UINT32 value = 0;

	if (Adapter->pstargetparams == NULL) {
	Adapter->pstargetparams = kmalloc(sizeof(struct bcm_target_params), GFP_KERNEL);
	if (Adapter->pstargetparams == NULL)
	return -ENOMEM;
	}

	if (psFwInfo->u32FirmwareLength != sizeof(struct bcm_target_params))
	return -EIO;

	retval = copy_from_user(Adapter->pstargetparams, psFwInfo->pvMappedFirmwareAddress, psFwInfo->u32FirmwareLength);
	if (retval) {
	kfree(Adapter->pstargetparams);
	Adapter->pstargetparams = NULL;
	return -EFAULT;
	}

	/* Parse the structure and then Download the Firmware */
	beceem_parse_target_struct(Adapter);

	/* Initializing the NVM. */
	BcmInitNVM(Adapter);
	retval = InitLedSettings(Adapter);

	if (retval) {
	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "INIT LED Failed\n");
	return retval;
	}

	if (Adapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) {
	Adapter->LEDInfo.bLedInitDone = FALSE;
	Adapter->DriverState = DRIVER_INIT;
	wake_up(&Adapter->LEDInfo.notify_led_event);
	}

	if (Adapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) {
	Adapter->DriverState = FW_DOWNLOAD;
	wake_up(&Adapter->LEDInfo.notify_led_event);
	}

	/* Initialize the DDR Controller */
	retval = ddr_init(Adapter);
	if (retval) {
	BCM_DEBUG_PRINT (Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "DDR Init Failed\n");
	return retval;
	}

	value = 0;
	wrmalt(Adapter, EEPROM_CAL_DATA_INTERNAL_LOC - 4, &value, sizeof(value));
	wrmalt(Adapter, EEPROM_CAL_DATA_INTERNAL_LOC - 8, &value, sizeof(value));

	if (Adapter->eNVMType == NVM_FLASH) {
	retval = PropagateCalParamsFromFlashToMemory(Adapter);
	if (retval) {
	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "propagaion of cal param failed with status :%d", retval);
	return retval;
	}
	}

	retval = buffDnldVerify(Adapter, (PUCHAR)Adapter->pstargetparams, sizeof(struct bcm_target_params), CONFIG_BEGIN_ADDR);

	if (retval)
	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "configuration file not downloaded properly");
	else
	Adapter->bCfgDownloaded = TRUE;

	return retval;
	}

	int bcm_ioctl_fw_download(struct bcm_mini_adapter Adapter, struct bcm_firmware_info psFwInfo)
	{
	int retval = STATUS_SUCCESS;
	PUCHAR buff = NULL;

	/* Config File is needed for the Driver to download the Config file and
	* Firmware. Check for the Config file to be first to be sent from the
	* Application
	*/
	atomic_set(&Adapter->uiMBupdate, FALSE);
	if (!Adapter->bCfgDownloaded && psFwInfo->u32StartingAddress != CONFIG_BEGIN_ADDR) {
	/* Can't Download Firmware. */
	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Download the config File first\n");
	return -EINVAL;
	}

	/* If Config File, Finish the DDR Settings and then Download CFG File */
	if (psFwInfo->u32StartingAddress == CONFIG_BEGIN_ADDR) {
	retval = bcm_download_config_file(Adapter, psFwInfo);
	} else {
	buff = kzalloc(psFwInfo->u32FirmwareLength, GFP_KERNEL);
	if (buff == NULL) {
	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Failed in allocation memory");
	return -ENOMEM;
	}

	retval = copy_from_user(buff, psFwInfo->pvMappedFirmwareAddress, psFwInfo->u32FirmwareLength);
	if (retval != STATUS_SUCCESS) {
	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "copying buffer from user space failed");
	retval = -EFAULT;
	goto error;
	}

	retval = buffDnldVerify(Adapter,
	buff,
	psFwInfo->u32FirmwareLength,
	psFwInfo->u32StartingAddress);

	if (retval != STATUS_SUCCESS) {
	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "f/w download failed status :%d", retval);
	goto error;
	}
	}

	error:
	kfree(buff);
	return retval;
	}

	static INT buffDnld(struct bcm_mini_adapter *Adapter, PUCHAR mappedbuffer, UINT u32FirmwareLength, ULONG u32StartingAddress)
	{
	unsigned int len = 0;
	int retval = STATUS_SUCCESS;
	len = u32FirmwareLength;

	while (u32FirmwareLength) {
	len = MIN_VAL(u32FirmwareLength, MAX_TRANSFER_CTRL_BYTE_USB);
	retval = wrm(Adapter, u32StartingAddress, mappedbuffer, len);

	if (retval) {
	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "wrm failed with status :%d", retval);
	break;
	}
	u32StartingAddress += len;
	u32FirmwareLength -= len;
	mappedbuffer += len;
	}
	return retval;
	}

	static INT buffRdbkVerify(struct bcm_mini_adapter *Adapter, PUCHAR mappedbuffer, UINT u32FirmwareLength, ULONG u32StartingAddress)
	{
	UINT len = u32FirmwareLength;
	INT retval = STATUS_SUCCESS;
	PUCHAR readbackbuff = kzalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_KERNEL);
	int bytes;

	if (NULL == readbackbuff) {
	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "MEMORY ALLOCATION FAILED");
	return -ENOMEM;
	}

	while (u32FirmwareLength && !retval) {
	len = MIN_VAL(u32FirmwareLength, MAX_TRANSFER_CTRL_BYTE_USB);
	bytes = rdm(Adapter, u32StartingAddress, readbackbuff, len);

	if (bytes < 0) {
	retval = bytes;
	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "rdm failed with status %d", retval);
	break;
	}

	if (memcmp(readbackbuff, mappedbuffer, len) != 0) {
	pr_err("%s() failed. The firmware doesn't match what was written",
	__func__);
	retval = -EIO;
	}

	u32StartingAddress += len;
	u32FirmwareLength -= len;
	mappedbuffer += len;

	} /* end of while (u32FirmwareLength && !retval) */
	kfree(readbackbuff);
	return retval;
	}

	INT buffDnldVerify(struct bcm_mini_adapter Adapter, unsigned char mappedbuffer, unsigned int u32FirmwareLength, unsigned long u32StartingAddress)
	{
	INT status = STATUS_SUCCESS;

	status = buffDnld(Adapter, mappedbuffer, u32FirmwareLength, u32StartingAddress);
	if (status != STATUS_SUCCESS) {
	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Buffer download failed");
	goto error;
	}

	status = buffRdbkVerify(Adapter, mappedbuffer, u32FirmwareLength, u32StartingAddress);
	if (status != STATUS_SUCCESS) {
	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Buffer readback verifier failed");
	goto error;
	}
	error:
	return status;
	}