C++ request_firmware函数代码示例

//.........这里部分代码省略.........

	rtlpci->receive_config =
			RCR_APPFCS |
			RCR_APWRMGT |
			/*RCR_ADD3 |*/
			RCR_AMF	|
			RCR_ADF |
			RCR_APP_MIC |
			RCR_APP_ICV |
			RCR_AICV |
			/* Accept ICV error, CRC32 Error */
			RCR_ACRC32 |
			RCR_AB |
			/* Accept Broadcast, Multicast */
			RCR_AM	|
			/* Accept Physical match */
			RCR_APM |
			/* Accept Destination Address packets */
			/*RCR_AAP |*/
			RCR_APP_PHYST_STAFF |
			/* Accept PHY status */
			RCR_APP_PHYST_RXFF |
			(earlyrxthreshold << RCR_FIFO_OFFSET);

	rtlpci->irq_mask[0] = (u32)
			(IMR_ROK |
			IMR_VODOK |
			IMR_VIDOK |
			IMR_BEDOK |
			IMR_BKDOK |
			IMR_HCCADOK |
			IMR_MGNTDOK |
			IMR_COMDOK |
			IMR_HIGHDOK |
			IMR_BDOK |
			IMR_RXCMDOK |
			/*IMR_TIMEOUT0 |*/
			IMR_RDU |
			IMR_RXFOVW	|
			IMR_BCNINT
			/*| IMR_TXFOVW*/
			/*| IMR_TBDOK |
			IMR_TBDER*/);

	rtlpci->irq_mask[1] = (u32) 0;

	rtlpci->shortretry_limit = 0x30;
	rtlpci->longretry_limit = 0x30;

	rtlpci->first_init = true;

	/* for LPS & IPS */
	rtlpriv->psc.inactiveps = rtlpriv->cfg->mod_params->inactiveps;
	rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps;
	rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps;
	rtlpriv->psc.reg_fwctrl_lps = 3;
	rtlpriv->psc.reg_max_lps_awakeintvl = 5;
	/* for ASPM, you can close aspm through
	 * set const_support_pciaspm = 0 */
	rtl92s_init_aspm_vars(hw);

	if (rtlpriv->psc.reg_fwctrl_lps == 1)
		rtlpriv->psc.fwctrl_psmode = FW_PS_MIN_MODE;
	else if (rtlpriv->psc.reg_fwctrl_lps == 2)
		rtlpriv->psc.fwctrl_psmode = FW_PS_MAX_MODE;
	else if (rtlpriv->psc.reg_fwctrl_lps == 3)
		rtlpriv->psc.fwctrl_psmode = FW_PS_DTIM_MODE;

	/* for firmware buf */
	rtlpriv->rtlhal.pfirmware = vzalloc(sizeof(struct rt_firmware));
	if (!rtlpriv->rtlhal.pfirmware) {
		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
			 ("Can't alloc buffer for fw.\n"));
		return 1;
	}

	printk(KERN_INFO "rtl8192se: Driver for Realtek RTL8192SE/RTL8191SE\n"
	       "           Loading firmware %s\n", rtlpriv->cfg->fw_name);
	/* request fw */
	err = request_firmware(&firmware, rtlpriv->cfg->fw_name,
			rtlpriv->io.dev);
	if (err) {
		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
			 ("Failed to request firmware!\n"));
		return 1;
	}
	if (firmware->size > sizeof(struct rt_firmware)) {
		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
			 ("Firmware is too big!\n"));
		release_firmware(firmware);
		return 1;
	}

	pfirmware = (struct rt_firmware *)rtlpriv->rtlhal.pfirmware;
	memcpy(pfirmware->sz_fw_tmpbuffer, firmware->data, firmware->size);
	pfirmware->sz_fw_tmpbufferlen = firmware->size;
	release_firmware(firmware);

	return err;
}

//.........这里部分代码省略.........
	priv->can_tx_hndl.u8prunumber = CAN_TX_PRU_1;
	priv->can_rx_hndl.u8prunumber = CAN_RX_PRU_0;

	ndev->flags |= (IFF_ECHO | IFF_NOARP);	/* we support local echo, no arp */
	platform_set_drvdata(pdev, ndev);
	SET_NETDEV_DEV(ndev, &pdev->dev);
	ndev->netdev_ops = &omapl_pru_can_netdev_ops;

	priv->clk = clk_get(&pdev->dev, "pru_ck");
	if (IS_ERR(priv->clk)) {
		dev_err(&pdev->dev, "no clock available\n");
		err = PTR_ERR(priv->clk);
		priv->clk = NULL;
		goto probe_exit_candev;
	}
	priv->can.clock.freq = clk_get_rate(priv->clk);

	priv->clk_timer = clk_get(&pdev->dev, "pll1_sysclk2");
	if (IS_ERR(priv->clk_timer)) {
		dev_err(&pdev->dev, "no timer clock available\n");
		err = PTR_ERR(priv->clk_timer);
		priv->clk_timer = NULL;
		goto probe_exit_candev;
	}
	priv->timer_freq = clk_get_rate(priv->clk_timer);

	err = register_candev(ndev);
	if (err) {
		dev_err(&pdev->dev, "register_candev() failed\n");
		err = -ENODEV;
		goto probe_exit_clk;
	}

	err = request_firmware(&priv->fw_tx, "PRU_CAN_Emulation_Tx.bin",
			       &pdev->dev);
	if (err) {
		dev_err(&pdev->dev, "can't load firmware\n");
		err = -ENODEV;
		goto probe_exit_clk;
	}

	dev_info(&pdev->dev, "fw_tx size %d. downloading...\n",
		 priv->fw_tx->size);

	err = request_firmware(&priv->fw_rx, "PRU_CAN_Emulation_Rx.bin",
			       &pdev->dev);
	if (err) {
		dev_err(&pdev->dev, "can't load firmware\n");
		err = -ENODEV;
		goto probe_release_fw;
	}
	dev_info(&pdev->dev, "fw_rx size %d. downloading...\n",
		 priv->fw_rx->size);

	fw_pru.ptr_pru1 = kmalloc(priv->fw_tx->size, GFP_KERNEL);
	memcpy((void *)fw_pru.ptr_pru1, (const void *)priv->fw_tx->data,
	       priv->fw_tx->size);
	fw_pru.u32_pru1_code_size = priv->fw_tx->size;
	fw_pru.ptr_pru0 = kmalloc(priv->fw_rx->size, GFP_KERNEL);
	memcpy((void *)fw_pru.ptr_pru0, (const void *)priv->fw_rx->data,
	       priv->fw_rx->size);
	fw_pru.u32_pru0_code_size = priv->fw_rx->size;

	/* init the pru */
	pru_can_emulation_init(&priv->pru_arm_iomap, priv->can.clock.freq);

static int load_kernel_fw_bootmode(struct spi_device *spi, const char *pFn)
{
	const struct firmware *fw = NULL;
	int remaining;
	unsigned int uPos = 0;
	unsigned int fw_addr = STM_APP_ADDR;
	int iRet;
	int block = STM_MAX_XFER_SIZE;
	int count = 0;
	int err_count = 0;
	int retry_count = 0;

	pr_info("[SSP] ssp_load_fw start!!!\n");

	iRet = request_firmware(&fw, pFn, &spi->dev);
	if (iRet) {
		pr_err("[SSP] Unable to open firmware %s\n", pFn);
		return iRet;
	}

	remaining = fw->size;
	while (remaining > 0) {
		if (block > remaining)
			block = remaining;

		while (retry_count < 3) {
			iRet = fw_write_stm(spi, fw_addr, block, fw->data + uPos);
			if (iRet < block) {
				pr_err("[SSP] Error writing to addr 0x%08X\n", fw_addr);
				if (iRet < 0) {
					pr_err("[SSP] Erro was %d\n", iRet);
				} else {
					pr_err("[SSP] Incomplete write of %d bytes\n",
						iRet);
					iRet = -EIO;
				}
				retry_count++;
				err_count++;
			} else {
				retry_count = 0;
				break;
			}
		}
		if (iRet < 0) {
			pr_err("[SSP] Writing MEM failed: %d, retry cont: %d\n", iRet, err_count);
			goto out_load_kernel;
		}
		remaining -= block;
		uPos += block;
		fw_addr += block;
		if (count++ == 20) {
			pr_info("[SSP] Updated %u bytes / %u bytes\n", uPos,
				fw->size);
			count = 0;
		}
	}

	pr_info("[SSP] Firmware download is success.(%d bytes, retry %d)\n", uPos, err_count);

out_load_kernel:
	release_firmware(fw);
	return iRet;
}

static int kgsl_ringbuffer_load_pfp_ucode(struct kgsl_device *device)
{
	int status = 0;
	int i;
	const struct firmware *fw = NULL;
	unsigned int *fw_ptr = NULL;
	size_t fw_word_size = 0;
	struct kgsl_yamato_device *yamato_device = KGSL_YAMATO_DEVICE(device);

	if (yamato_device->pfp_fw == NULL) {
		if (device->chip_id == KGSL_CHIPID_LEIA_REV470) {
			status = request_firmware(&fw, LEIA_PFP_470_FW,
				device->dev);
			if (status != 0) {
				KGSL_DRV_ERR("request_firmware for %s \
					 failed with error %d\n",
					LEIA_PFP_470_FW, status);
				return status;
			}
		} else {
			status = request_firmware(&fw, YAMATO_PFP_FW,
				device->dev);
			if (status != 0) {
				KGSL_DRV_ERR("request_firmware for %s \
					 failed with error %d\n",
					YAMATO_PFP_FW, status);
				return status;
			}
		}
		/*this firmware must come in 1 word chunks. */
		if ((fw->size % sizeof(uint32_t)) != 0) {
			KGSL_DRV_ERR("bad firmware size %d.\n", fw->size);
			status = -EINVAL;
			goto error_release_fw;
		}
		fw_ptr = (unsigned int *)fw->data;
		fw_word_size = fw->size/sizeof(uint32_t);
		yamato_device->pfp_fw_size = fw_word_size;

		/* keep a copy of fw to be reloaded  later */
		yamato_device->pfp_fw = (unsigned int *)
						kmalloc(fw->size, GFP_KERNEL);
		if (yamato_device->pfp_fw == NULL) {
			KGSL_DRV_ERR("ERROR: couldn't kmalloc fw size= %d.\n",
								fw->size);
			status = -EINVAL;
			goto error_release_fw;
		}
		memcpy(yamato_device->pfp_fw, fw->data, fw->size);

	} else {
		fw_ptr = yamato_device->pfp_fw;
		fw_word_size = yamato_device->pfp_fw_size;
	}

	KGSL_DRV_INFO("loading pfp ucode version: %d\n", fw_ptr[0]);

	kgsl_yamato_regwrite(device, REG_CP_PFP_UCODE_ADDR, 0);
	for (i = 1; i < fw_word_size; i++)
		kgsl_yamato_regwrite(device, REG_CP_PFP_UCODE_DATA, fw_ptr[i]);

error_release_fw:
	if (fw)
		release_firmware(fw);
	return status;
}

int cx18_av_loadfw(struct cx18 *cx)
{
	struct v4l2_subdev *sd = &cx->av_state.sd;
	const struct firmware *fw = NULL;
	u32 size;
	u32 u, v;
	const u8 *ptr;
	int i;
	int retries1 = 0;

	if (request_firmware(&fw, FWFILE, &cx->pci_dev->dev) != 0) {
		CX18_ERR_DEV(sd, "unable to open firmware %s\n", FWFILE);
		return -EINVAL;
	}

	/* The firmware load often has byte errors, so allow for several
	   retries, both at byte level and at the firmware load level. */
	while (retries1 < 5) {
		cx18_av_write4_expect(cx, CXADEC_CHIP_CTRL, 0x00010000,
					  0x00008430, 0xffffffff); /* cx25843 */
		cx18_av_write_expect(cx, CXADEC_STD_DET_CTL, 0xf6, 0xf6, 0xff);

		/* Reset the Mako core, Register is alias of CXADEC_CHIP_CTRL */
		cx18_av_write4_expect(cx, 0x8100, 0x00010000,
					  0x00008430, 0xffffffff); /* cx25843 */

		/* Put the 8051 in reset and enable firmware upload */
		cx18_av_write4_noretry(cx, CXADEC_DL_CTL, 0x0F000000);

		ptr = fw->data;
		size = fw->size;

		for (i = 0; i < size; i++) {
			u32 dl_control = 0x0F000000 | i | ((u32)ptr[i] << 16);
			u32 value = 0;
			int retries2;
			int unrec_err = 0;

			for (retries2 = 0; retries2 < CX18_MAX_MMIO_WR_RETRIES;
			     retries2++) {
				cx18_av_write4_noretry(cx, CXADEC_DL_CTL,
						       dl_control);
				udelay(10);
				value = cx18_av_read4(cx, CXADEC_DL_CTL);
				if (value == dl_control)
					break;
				/* Check if we can correct the byte by changing
				   the address.  We can only write the lower
				   address byte of the address. */
				if ((value & 0x3F00) != (dl_control & 0x3F00)) {
					unrec_err = 1;
					break;
				}
			}
			if (unrec_err || retries2 >= CX18_MAX_MMIO_WR_RETRIES)
				break;
		}
		if (i == size)
			break;
		retries1++;
	}
	if (retries1 >= 5) {
		CX18_ERR_DEV(sd, "unable to load firmware %s\n", FWFILE);
		release_firmware(fw);
		return -EIO;
	}

	cx18_av_write4_expect(cx, CXADEC_DL_CTL,
				0x03000000 | fw->size, 0x03000000, 0x13000000);

	CX18_INFO_DEV(sd, "loaded %s firmware (%d bytes)\n", FWFILE, size);

	if (cx18_av_verifyfw(cx, fw) == 0)
		cx18_av_write4_expect(cx, CXADEC_DL_CTL,
				0x13000000 | fw->size, 0x13000000, 0x13000000);

	/* Output to the 416 */
	cx18_av_and_or4(cx, CXADEC_PIN_CTRL1, ~0, 0x78000);

	/* Audio input control 1 set to Sony mode */
	/* Audio output input 2 is 0 for slave operation input */
	/* 0xC4000914[5]: 0 = left sample on WS=0, 1 = left sample on WS=1 */
	/* 0xC4000914[7]: 0 = Philips mode, 1 = Sony mode (1st SCK rising edge
	   after WS transition for first bit of audio word. */
	cx18_av_write4(cx, CXADEC_I2S_IN_CTL, 0x000000A0);

	/* Audio output control 1 is set to Sony mode */
	/* Audio output control 2 is set to 1 for master mode */
	/* 0xC4000918[5]: 0 = left sample on WS=0, 1 = left sample on WS=1 */
	/* 0xC4000918[7]: 0 = Philips mode, 1 = Sony mode (1st SCK rising edge
	   after WS transition for first bit of audio word. */
	/* 0xC4000918[8]: 0 = slave operation, 1 = master (SCK_OUT and WS_OUT
	   are generated) */
	cx18_av_write4(cx, CXADEC_I2S_OUT_CTL, 0x000001A0);

	/* set alt I2s master clock to /0x16 and enable alt divider i2s
	   passthrough */
	cx18_av_write4(cx, CXADEC_PIN_CFG3, 0x5600B687);

	cx18_av_write4_expect(cx, CXADEC_STD_DET_CTL, 0x000000F6, 0x000000F6,
//.........这里部分代码省略.........

static int css2600_pci_probe(struct pci_dev *pdev,
			     const struct pci_device_id *id)
{
	struct css2600_device *isp;
	phys_addr_t phys;
	void __iomem *mmu_base[CSS2600_MMU_MAX_DEVICES];
	struct css2600_bus_iommu *isys_iommu, *psys_iommu;
	void __iomem * const *iomap;
	void __iomem *isys_base = NULL;
	void __iomem *psys_base = NULL;
	char *fw_binary;
	unsigned int iommus = 0;
	unsigned int dma_mask = 39;
	int rval;

	isp = devm_kzalloc(&pdev->dev, sizeof(*isp), GFP_KERNEL);
	if (!isp) {
		dev_err(&pdev->dev, "Failed to alloc CI ISP structure\n");
		return -ENOMEM;
	}
	isp->pdev = pdev;
	INIT_LIST_HEAD(&isp->devices);

	isys_iommu = devm_kzalloc(&pdev->dev, sizeof(*isys_iommu), GFP_KERNEL);
	psys_iommu = devm_kzalloc(&pdev->dev, sizeof(*psys_iommu), GFP_KERNEL);
	if (!isys_iommu || !psys_iommu) {
		dev_err(&pdev->dev, "Can't allocate memory for iommu\n");
		return -ENOMEM;
	}

	/* Share IOMMU mapping between isys and psys */
	isys_iommu->m = psys_iommu->m = devm_kzalloc(
		&pdev->dev, sizeof(*isys_iommu->m), GFP_KERNEL);
	if (!isys_iommu->m) {
		dev_err(&pdev->dev,
			"Can't allocate memory for iommu mapping\n");
		return -ENOMEM;
	}

	rval = pcim_enable_device(pdev);
	if (rval) {
		dev_err(&pdev->dev, "Failed to enable CI ISP device (%d)\n",
			rval);
		return rval;
	}

	phys = pci_resource_start(pdev, CSS2600_PCI_BAR);

	rval = pcim_iomap_regions(pdev, 1 << CSS2600_PCI_BAR, pci_name(pdev));
	if (rval) {
		dev_err(&pdev->dev, "Failed to I/O memory remapping (%d)\n",
			rval);
		return rval;
	}
	dev_info(&pdev->dev, "physical base address 0x%llx\n", phys);

	iomap = pcim_iomap_table(pdev);
	if (!iomap) {
		dev_err(&pdev->dev, "Failed to iomap table (%d)\n", rval);
		return -ENODEV;
	}

	isp->base = iomap[CSS2600_PCI_BAR];
	dev_info(&pdev->dev, "mapped as: 0x%p\n", isp->base);

	pci_set_drvdata(pdev, isp);

	pci_set_master(pdev);

	switch (isp->pdev->device) {
	case CSS2600_HW_MRFLD_2401:
		psys_base = isp->base;
		isys_base = isp->base;
		fw_binary = CSS2401_FIRMWARE;
		break;
	case CSS2600_HW_BXT_FPGA:
		dma_mask = 32;
		/* fall through */
	case CSS2600_HW_BXT:
		psys_base = isp->base + CSS2600_BXT_A0_PSYS_OFFSET;
		isys_base = isp->base + CSS2600_BXT_A0_ISYS_OFFSET;
		fw_binary = NULL;
		break;
	default:
		dev_err(&pdev->dev, "Not supported device\n");
		return -EINVAL;
	}

	rval = pci_set_dma_mask(pdev, DMA_BIT_MASK(dma_mask));
	if (!rval)
		rval = pci_set_consistent_dma_mask(pdev,
						   DMA_BIT_MASK(dma_mask));
	if (rval) {
		dev_err(&pdev->dev, "Failed to set DMA mask (%d)\n", rval);
		return rval;
	}

	if (fw_binary)
		rval = request_firmware(&isp->fw, fw_binary, &pdev->dev);
	if (rval) {
//.........这里部分代码省略.........

static int load_segment(const struct elf32_phdr *phdr, unsigned num,
		struct pil_device *pil)
{
	int ret = 0, count, paddr;
	char fw_name[30];
	const struct firmware *fw = NULL;
	const u8 *data;

	if (memblock_overlaps_memory(phdr->p_paddr, phdr->p_memsz)) {
		dev_err(&pil->dev, "%s: kernel memory would be overwritten "
			"[%#08lx, %#08lx)\n", pil->desc->name,
			(unsigned long)phdr->p_paddr,
			(unsigned long)(phdr->p_paddr + phdr->p_memsz));
		return -EPERM;
	}

	if (phdr->p_filesz) {
		snprintf(fw_name, ARRAY_SIZE(fw_name), "%s.b%02d",
				pil->desc->name, num);
		ret = request_firmware(&fw, fw_name, &pil->dev);
		if (ret) {
			dev_err(&pil->dev, "%s: Failed to locate blob %s\n",
					pil->desc->name, fw_name);
			return ret;
		}

		if (fw->size != phdr->p_filesz) {
			dev_err(&pil->dev, "%s: Blob size %u doesn't match "
					"%u\n", pil->desc->name, fw->size,
					phdr->p_filesz);
			ret = -EPERM;
			goto release_fw;
		}
	}

	/* Load the segment into memory */
	count = phdr->p_filesz;
	paddr = phdr->p_paddr;
	data = fw ? fw->data : NULL;
	while (count > 0) {
		int size;
		u8 __iomem *buf;

		size = min_t(size_t, IOMAP_SIZE, count);
		buf = ioremap(paddr, size);
		if (!buf) {
			dev_err(&pil->dev, "%s: Failed to map memory\n",
					pil->desc->name);
			ret = -ENOMEM;
			goto release_fw;
		}
		memcpy(buf, data, size);
		iounmap(buf);

		count -= size;
		paddr += size;
		data += size;
	}

	/* Zero out trailing memory */
	count = phdr->p_memsz - phdr->p_filesz;
	while (count > 0) {
		int size;
		u8 __iomem *buf;

		size = min_t(size_t, IOMAP_SIZE, count);
		buf = ioremap(paddr, size);
		if (!buf) {
			dev_err(&pil->dev, "%s: Failed to map memory\n",
					pil->desc->name);
			ret = -ENOMEM;
			goto release_fw;
		}
		memset(buf, 0, size);
		iounmap(buf);

		count -= size;
		paddr += size;
	}

	if (pil->desc->ops->verify_blob) {
		ret = pil->desc->ops->verify_blob(pil->desc, phdr->p_paddr,
					  phdr->p_memsz);
		if (ret)
			dev_err(&pil->dev, "%s: Blob%u failed verification\n",
				pil->desc->name, num);
	}

release_fw:
	release_firmware(fw);
	return ret;
}

static int
isl_upload_firmware(islpci_private *priv)
{
	u32 reg, rc;
	void __iomem *device_base = priv->device_base;

	/* clear the RAMBoot and the Reset bit */
	reg = readl(device_base + ISL38XX_CTRL_STAT_REG);
	reg &= ~ISL38XX_CTRL_STAT_RESET;
	reg &= ~ISL38XX_CTRL_STAT_RAMBOOT;
	writel(reg, device_base + ISL38XX_CTRL_STAT_REG);
	wmb();
	udelay(ISL38XX_WRITEIO_DELAY);

	/* set the Reset bit without reading the register ! */
	reg |= ISL38XX_CTRL_STAT_RESET;
	writel(reg, device_base + ISL38XX_CTRL_STAT_REG);
	wmb();
	udelay(ISL38XX_WRITEIO_DELAY);

	/* clear the Reset bit */
	reg &= ~ISL38XX_CTRL_STAT_RESET;
	writel(reg, device_base + ISL38XX_CTRL_STAT_REG);
	wmb();

	/* wait a while for the device to reboot */
	mdelay(50);

	{
		const struct firmware *fw_entry = NULL;
		long fw_len;
		const u32 *fw_ptr;

		rc = request_firmware(&fw_entry, priv->firmware, PRISM_FW_PDEV);
		if (rc)
			return rc;

		/* prepare the Direct Memory Base register */
		reg = ISL38XX_DEV_FIRMWARE_ADDRES;

		fw_ptr = (u32 *) fw_entry->data;
		fw_len = fw_entry->size;

		if (fw_len % 4) {
			printk(KERN_ERR
			       "%s: firmware '%s' size is not multiple of 32bit, aborting!\n",
			       "prism54", priv->firmware);
			release_firmware(fw_entry);
			return -EILSEQ; /* Illegal byte sequence  */;
		}

		while (fw_len > 0) {
			long _fw_len =
			    (fw_len >
			     ISL38XX_MEMORY_WINDOW_SIZE) ?
			    ISL38XX_MEMORY_WINDOW_SIZE : fw_len;
			u32 __iomem *dev_fw_ptr = device_base + ISL38XX_DIRECT_MEM_WIN;

			/* set the card's base address for writing the data */
			isl38xx_w32_flush(device_base, reg,
					  ISL38XX_DIR_MEM_BASE_REG);
			wmb();	/* be paranoid */

			/* increment the write address for next iteration */
			reg += _fw_len;
			fw_len -= _fw_len;

			/* write the data to the Direct Memory Window 32bit-wise */
			/* memcpy_toio() doesn't guarantee 32bit writes :-| */
			while (_fw_len > 0) {
				/* use non-swapping writel() */
				__raw_writel(*fw_ptr, dev_fw_ptr);
				fw_ptr++, dev_fw_ptr++;
				_fw_len -= 4;
			}

			/* flush PCI posting */
			(void) readl(device_base + ISL38XX_PCI_POSTING_FLUSH);
			wmb();	/* be paranoid again */

			BUG_ON(_fw_len != 0);
		}

		BUG_ON(fw_len != 0);

		/* Firmware version is at offset 40 (also for "newmac") */
		printk(KERN_DEBUG "%s: firmware version: %.8s\n",
		       priv->ndev->name, fw_entry->data + 40);

		release_firmware(fw_entry);
	}

	/* now reset the device
	 * clear the Reset & ClkRun bit, set the RAMBoot bit */
	reg = readl(device_base + ISL38XX_CTRL_STAT_REG);
	reg &= ~ISL38XX_CTRL_STAT_CLKRUN;
	reg &= ~ISL38XX_CTRL_STAT_RESET;
	reg |= ISL38XX_CTRL_STAT_RAMBOOT;
	isl38xx_w32_flush(device_base, reg, ISL38XX_CTRL_STAT_REG);
	wmb();
//.........这里部分代码省略.........

static int __devinit wm2000_i2c_probe(struct i2c_client *i2c,
				      const struct i2c_device_id *i2c_id)
{
	struct wm2000_priv *wm2000;
	struct wm2000_platform_data *pdata;
	const char *filename;
	const struct firmware *fw;
	int reg, ret;
	u16 id;

	wm2000 = devm_kzalloc(&i2c->dev, sizeof(struct wm2000_priv),
			      GFP_KERNEL);
	if (wm2000 == NULL) {
		dev_err(&i2c->dev, "Unable to allocate private data\n");
		return -ENOMEM;
	}

	dev_set_drvdata(&i2c->dev, wm2000);

	wm2000->regmap = regmap_init_i2c(i2c, &wm2000_regmap);
	if (IS_ERR(wm2000->regmap)) {
		ret = PTR_ERR(wm2000->regmap);
		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
			ret);
		goto err;
	}

	/* Verify that this is a WM2000 */
	reg = wm2000_read(i2c, WM2000_REG_ID1);
	id = reg << 8;
	reg = wm2000_read(i2c, WM2000_REG_ID2);
	id |= reg & 0xff;

	if (id != 0x2000) {
		dev_err(&i2c->dev, "Device is not a WM2000 - ID %x\n", id);
		ret = -ENODEV;
		goto err_regmap;
	}

	reg = wm2000_read(i2c, WM2000_REG_REVISON);
	dev_info(&i2c->dev, "revision %c\n", reg + 'A');

	filename = "wm2000_anc.bin";
	pdata = dev_get_platdata(&i2c->dev);
	if (pdata) {
		wm2000->mclk_div = pdata->mclkdiv2;
		wm2000->speech_clarity = !pdata->speech_enh_disable;

		if (pdata->download_file)
			filename = pdata->download_file;
	}

	ret = request_firmware(&fw, filename, &i2c->dev);
	if (ret != 0) {
		dev_err(&i2c->dev, "Failed to acquire ANC data: %d\n", ret);
		goto err_regmap;
	}

	/* Pre-cook the concatenation of the register address onto the image */
	wm2000->anc_download_size = fw->size + 2;
	wm2000->anc_download = devm_kzalloc(&i2c->dev,
					    wm2000->anc_download_size,
					    GFP_KERNEL);
	if (wm2000->anc_download == NULL) {
		dev_err(&i2c->dev, "Out of memory\n");
		ret = -ENOMEM;
		goto err_fw;
	}

	wm2000->anc_download[0] = 0x80;
	wm2000->anc_download[1] = 0x00;
	memcpy(wm2000->anc_download + 2, fw->data, fw->size);

	release_firmware(fw);

	wm2000->anc_eng_ena = 1;
	wm2000->anc_active = 1;
	wm2000->spk_ena = 1;
	wm2000->i2c = i2c;

	wm2000_reset(wm2000);

	ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm2000,
				     NULL, 0);
	if (ret != 0)
		goto err_fw;

	return 0;

err_fw:
	release_firmware(fw);
err_regmap:
	regmap_exit(wm2000->regmap);
err:
	return ret;
}

int ni_init_microcode(struct radeon_device *rdev)
{
	struct platform_device *pdev;
	const char *chip_name;
	const char *rlc_chip_name;
	size_t pfp_req_size, me_req_size, rlc_req_size, mc_req_size;
	char fw_name[30];
	int err;

	DRM_DEBUG("\n");

	pdev = platform_device_register_simple("radeon_cp", 0, NULL, 0);
	err = IS_ERR(pdev);
	if (err) {
		printk(KERN_ERR "radeon_cp: Failed to register firmware\n");
		return -EINVAL;
	}

	switch (rdev->family) {
	case CHIP_BARTS:
		chip_name = "BARTS";
		rlc_chip_name = "BTC";
		pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
		me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
		rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
		mc_req_size = BTC_MC_UCODE_SIZE * 4;
		break;
	case CHIP_TURKS:
		chip_name = "TURKS";
		rlc_chip_name = "BTC";
		pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
		me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
		rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
		mc_req_size = BTC_MC_UCODE_SIZE * 4;
		break;
	case CHIP_CAICOS:
		chip_name = "CAICOS";
		rlc_chip_name = "BTC";
		pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
		me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
		rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
		mc_req_size = BTC_MC_UCODE_SIZE * 4;
		break;
	case CHIP_CAYMAN:
		chip_name = "CAYMAN";
		rlc_chip_name = "CAYMAN";
		pfp_req_size = CAYMAN_PFP_UCODE_SIZE * 4;
		me_req_size = CAYMAN_PM4_UCODE_SIZE * 4;
		rlc_req_size = CAYMAN_RLC_UCODE_SIZE * 4;
		mc_req_size = CAYMAN_MC_UCODE_SIZE * 4;
		break;
	case CHIP_ARUBA:
		chip_name = "ARUBA";
		rlc_chip_name = "ARUBA";
		/* pfp/me same size as CAYMAN */
		pfp_req_size = CAYMAN_PFP_UCODE_SIZE * 4;
		me_req_size = CAYMAN_PM4_UCODE_SIZE * 4;
		rlc_req_size = ARUBA_RLC_UCODE_SIZE * 4;
		mc_req_size = 0;
		break;
	default: BUG();
	}

	DRM_INFO("Loading %s Microcode\n", chip_name);

	snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", chip_name);
	err = request_firmware(&rdev->pfp_fw, fw_name, &pdev->dev);
	if (err)
		goto out;
	if (rdev->pfp_fw->size != pfp_req_size) {
		printk(KERN_ERR
		       "ni_cp: Bogus length %zu in firmware \"%s\"\n",
		       rdev->pfp_fw->size, fw_name);
		err = -EINVAL;
		goto out;
	}

	snprintf(fw_name, sizeof(fw_name), "radeon/%s_me.bin", chip_name);
	err = request_firmware(&rdev->me_fw, fw_name, &pdev->dev);
	if (err)
		goto out;
	if (rdev->me_fw->size != me_req_size) {
		printk(KERN_ERR
		       "ni_cp: Bogus length %zu in firmware \"%s\"\n",
		       rdev->me_fw->size, fw_name);
		err = -EINVAL;
	}

	snprintf(fw_name, sizeof(fw_name), "radeon/%s_rlc.bin", rlc_chip_name);
	err = request_firmware(&rdev->rlc_fw, fw_name, &pdev->dev);
	if (err)
		goto out;
	if (rdev->rlc_fw->size != rlc_req_size) {
		printk(KERN_ERR
		       "ni_rlc: Bogus length %zu in firmware \"%s\"\n",
		       rdev->rlc_fw->size, fw_name);
		err = -EINVAL;
	}

	/* no MC ucode on TN */
//.........这里部分代码省略.........

bool FirmwareDownload92S(struct net_device *dev)
{	
	struct r8192_priv 	*priv = rtllib_priv(dev);
	bool			rtStatus = true;
	u8			*pucMappedFile = NULL;
	u32			ulFileLength = 0;	
	u8			FwHdrSize = RT_8192S_FIRMWARE_HDR_SIZE;	
	rt_firmware		*pFirmware = priv->pFirmware;
	u8			FwStatus = FW_STATUS_INIT;
	PRT_8192S_FIRMWARE_HDR	pFwHdr = NULL;
	PRT_8192S_FIRMWARE_PRIV	pFwPriv = NULL;
	
	pFirmware->FWStatus = FW_STATUS_INIT;

	RT_TRACE(COMP_FIRMWARE, " --->FirmwareDownload92S()\n");

#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0) && defined(USE_FW_SOURCE_IMG_FILE)
	priv->firmware_source = FW_SOURCE_IMG_FILE;
#else
	priv->firmware_source = FW_SOURCE_HEADER_FILE;
#endif

	switch( priv->firmware_source )
	{
		case FW_SOURCE_IMG_FILE:		
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0) && defined(USE_FW_SOURCE_IMG_FILE)			
			if(pFirmware->szFwTmpBufferLen == 0)
			{
#ifdef _RTL8192_EXT_PATCH_
				const char 		*pFwImageFileName[1] = {"RTL8191SE_MESH/rtl8192sfw.bin"};
#else
				const char 		*pFwImageFileName[1] = {"RTL8192SE/rtl8192sfw.bin"};
#endif
				const struct firmware 	*fw_entry = NULL;
				u32 ulInitStep = 0;
				int 			rc = 0;
				u32			file_length = 0;
				rc = request_firmware(&fw_entry, pFwImageFileName[ulInitStep],&priv->pdev->dev);
				if(rc < 0 ) {
					RT_TRACE(COMP_ERR, "request firmware fail!\n");
					goto DownloadFirmware_Fail;
				} 

				if(fw_entry->size > sizeof(pFirmware->szFwTmpBuffer)) {
					RT_TRACE(COMP_ERR, "img file size exceed the container buffer fail!\n");
					release_firmware(fw_entry);
					goto DownloadFirmware_Fail;
				}

				memcpy(pFirmware->szFwTmpBuffer,fw_entry->data,fw_entry->size);
				pFirmware->szFwTmpBufferLen = fw_entry->size;
				release_firmware(fw_entry);

				pucMappedFile = pFirmware->szFwTmpBuffer;
				file_length = pFirmware->szFwTmpBufferLen;

				pFirmware->pFwHeader = (PRT_8192S_FIRMWARE_HDR) pucMappedFile;				
				pFwHdr = pFirmware->pFwHeader;
				RT_TRACE(COMP_FIRMWARE,"signature:%x, version:%x, size:%x, imemsize:%x, sram size:%x\n", \
						pFwHdr->Signature, pFwHdr->Version, pFwHdr->DMEMSize, \
						pFwHdr->IMG_IMEM_SIZE, pFwHdr->IMG_SRAM_SIZE);
				pFirmware->FirmwareVersion =  byte(pFwHdr->Version ,0);			
				if ((pFwHdr->IMG_IMEM_SIZE==0) || (pFwHdr->IMG_IMEM_SIZE > sizeof(pFirmware->FwIMEM)))
				{
					RT_TRACE(COMP_ERR, "%s: memory for data image is less than IMEM required\n",\
							__FUNCTION__);
					goto DownloadFirmware_Fail;
				} else {				
					pucMappedFile+=FwHdrSize;

					memcpy(pFirmware->FwIMEM, pucMappedFile, pFwHdr->IMG_IMEM_SIZE);
					pFirmware->FwIMEMLen = pFwHdr->IMG_IMEM_SIZE;				
				}

				if (pFwHdr->IMG_SRAM_SIZE > sizeof(pFirmware->FwEMEM))
				{
					RT_TRACE(COMP_ERR, "%s: memory for data image is less than EMEM required\n",\
							__FUNCTION__);	
					goto DownloadFirmware_Fail;
				}
				else
				{	
					pucMappedFile += pFirmware->FwIMEMLen;

					memcpy(pFirmware->FwEMEM, pucMappedFile, pFwHdr->IMG_SRAM_SIZE);
					pFirmware->FwEMEMLen = pFwHdr->IMG_SRAM_SIZE;		
				}	
			}
#endif
			break;	

		case FW_SOURCE_HEADER_FILE:	
#if 1
#define Rtl819XFwImageArray Rtl8192SEFwImgArray
			pucMappedFile = Rtl819XFwImageArray;
			ulFileLength = ImgArrayLength;

			RT_TRACE(COMP_INIT,"Fw download from header.\n");
			pFirmware->pFwHeader = (PRT_8192S_FIRMWARE_HDR) pucMappedFile;				
			pFwHdr = pFirmware->pFwHeader;
//.........这里部分代码省略.........

/*
 * predef should be 0 for loading user defined mcs
 * predef should be YAM_1200 for loading predef 1200 mcs
 * predef should be YAM_9600 for loading predef 9600 mcs
 */
static unsigned char *add_mcs(unsigned char *bits, int bitrate,
			      unsigned int predef)
{
	const char *fw_name[2] = {FIRMWARE_9600, FIRMWARE_1200};
	const struct firmware *fw;
	struct platform_device *pdev;
	struct yam_mcs *p;
	int err;

	switch (predef) {
	case 0:
		fw = NULL;
		break;
	case YAM_1200:
	case YAM_9600:
		predef--;
		pdev = platform_device_register_simple("yam", 0, NULL, 0);
		if (IS_ERR(pdev)) {
			printk(KERN_ERR "yam: Failed to register firmware\n");
			return NULL;
		}
		err = request_firmware(&fw, fw_name[predef], &pdev->dev);
		platform_device_unregister(pdev);
		if (err)
			return NULL;
		if (fw->size != YAM_FPGA_SIZE) {
			printk(KERN_ERR "Bogus length %zu in firmware \"%s\"\n",
			       fw->size, fw_name[predef]);
			release_firmware(fw);
			return NULL;
		}
		bits = (unsigned char *)fw->data;
		break;
	default:
		printk(KERN_ERR "yam: Invalid predef number %u\n", predef);
		return NULL;
	}

	/* If it already exists, replace the bit data */
	p = yam_data;
	while (p) {
		if (p->bitrate == bitrate) {
			memcpy(p->bits, bits, YAM_FPGA_SIZE);
			goto out;
		}
		p = p->next;
	}

	/* Allocate a new mcs */
	if ((p = kmalloc(sizeof(struct yam_mcs), GFP_KERNEL)) == NULL) {
		release_firmware(fw);
		return NULL;
	}
	memcpy(p->bits, bits, YAM_FPGA_SIZE);
	p->bitrate = bitrate;
	p->next = yam_data;
	yam_data = p;
 out:
	release_firmware(fw);
	return p->bits;
}

static int load_image(struct pil_device *pil)
{
	int i, ret;
	char fw_name[30];
	struct elf32_hdr *ehdr;
	const struct elf32_phdr *phdr;
	const struct firmware *fw;
	unsigned long proxy_timeout = pil->desc->proxy_timeout;

	down_read(&pil_pm_rwsem);
	snprintf(fw_name, sizeof(fw_name), "%s.mdt", pil->desc->name);
	ret = request_firmware(&fw, fw_name, &pil->dev);
	if (ret) {
		dev_err(&pil->dev, "%s: Failed to locate %s\n",
				pil->desc->name, fw_name);
		goto out;
	}

	if (fw->size < sizeof(*ehdr)) {
		dev_err(&pil->dev, "%s: Not big enough to be an elf header\n",
				pil->desc->name);
		ret = -EIO;
		goto release_fw;
	}

	ehdr = (struct elf32_hdr *)fw->data;
	if (memcmp(ehdr->e_ident, ELFMAG, SELFMAG)) {
		dev_err(&pil->dev, "%s: Not an elf header\n", pil->desc->name);
		ret = -EIO;
		goto release_fw;
	}

	if (ehdr->e_phnum == 0) {
		dev_err(&pil->dev, "%s: No loadable segments\n",
				pil->desc->name);
		ret = -EIO;
		goto release_fw;
	}
	if (sizeof(struct elf32_phdr) * ehdr->e_phnum +
	    sizeof(struct elf32_hdr) > fw->size) {
		dev_err(&pil->dev, "%s: Program headers not within mdt\n",
				pil->desc->name);
		ret = -EIO;
		goto release_fw;
	}

	ret = pil->desc->ops->init_image(pil->desc, fw->data, fw->size);
	if (ret) {
		dev_err(&pil->dev, "%s: Invalid firmware metadata\n",
				pil->desc->name);
		goto release_fw;
	}

	phdr = (const struct elf32_phdr *)(fw->data + sizeof(struct elf32_hdr));
	for (i = 0; i < ehdr->e_phnum; i++, phdr++) {
		if (!segment_is_loadable(phdr))
			continue;

		ret = load_segment(phdr, i, pil);
		if (ret) {
			dev_err(&pil->dev, "%s: Failed to load segment %d\n",
					pil->desc->name, i);
			goto release_fw;
		}
	}

	ret = pil_proxy_vote(pil);
	if (ret) {
		dev_err(&pil->dev, "%s: Failed to proxy vote\n",
					pil->desc->name);
		goto release_fw;
	}

	ret = pil->desc->ops->auth_and_reset(pil->desc);
	if (ret) {
		dev_err(&pil->dev, "%s: Failed to bring out of reset\n",
				pil->desc->name);
		proxy_timeout = 0; /* Remove proxy vote immediately on error */
		goto err_boot;
	}
	dev_info(&pil->dev, "%s: Brought out of reset\n", pil->desc->name);
err_boot:
	pil_proxy_unvote(pil, proxy_timeout);
release_fw:
	release_firmware(fw);
out:
	up_read(&pil_pm_rwsem);
	return ret;
}

static int zd1201_fw_upload(struct usb_device *dev, int apfw)
{
	const struct firmware *fw_entry;
	const char *data;
	unsigned long len;
	int err;
	unsigned char ret;
	char *buf;
	char *fwfile;

	if (apfw)
		fwfile = "zd1201-ap.fw";
	else
		fwfile = "zd1201.fw";

	err = request_firmware(&fw_entry, fwfile, &dev->dev);
	if (err) {
		dev_err(&dev->dev, "Failed to load %s firmware file!\n", fwfile);
		dev_err(&dev->dev, "Make sure the hotplug firmware loader is installed.\n");
		dev_err(&dev->dev, "Goto http://linux-lc100020.sourceforge.net for more info.\n");
		return err;
	}

	data = fw_entry->data;
        len = fw_entry->size;

	buf = kmalloc(1024, GFP_ATOMIC);
	if (!buf)
		goto exit;

	while (len > 0) {
		int translen = (len > 1024) ? 1024 : len;
		memcpy(buf, data, translen);

		err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0,
		    USB_DIR_OUT | 0x40, 0, 0, buf, translen,
		    ZD1201_FW_TIMEOUT);
		if (err < 0)
			goto exit;

		len -= translen;
		data += translen;
	}

	err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), 0x2,
	    USB_DIR_OUT | 0x40, 0, 0, NULL, 0, ZD1201_FW_TIMEOUT);
	if (err < 0)
		goto exit;

	err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4,
	    USB_DIR_IN | 0x40, 0, 0, buf, sizeof(ret), ZD1201_FW_TIMEOUT);
	if (err < 0)
		goto exit;

	memcpy(&ret, buf, sizeof(ret));

	if (ret & 0x80) {
		err = -EIO;
		goto exit;
	}

	err = 0;
exit:
	kfree(buf);
	release_firmware(fw_entry);
	return err;
}

/**
 *  lbs_get_firmware - Retrieves two-stage firmware
 *
 *  @dev:     	A pointer to &device structure
 *  @user_helper: User-defined helper firmware file
 *  @user_mainfw: User-defined main firmware file
 *  @card_model: Bus-specific card model ID used to filter firmware table
 *		elements
 *  @fw_table:	Table of firmware file names and device model numbers
 *		terminated by an entry with a NULL helper name
 *  @helper:	On success, the helper firmware; caller must free
 *  @mainfw:	On success, the main firmware; caller must free
 *
 *  returns:		0 on success, non-zero on failure
 */
int lbs_get_firmware(struct device *dev, const char *user_helper,
			const char *user_mainfw, u32 card_model,
			const struct lbs_fw_table *fw_table,
			const struct firmware **helper,
			const struct firmware **mainfw)
{
	const struct lbs_fw_table *iter;
	int ret;

	BUG_ON(helper == NULL);
	BUG_ON(mainfw == NULL);

	/* Try user-specified firmware first */
	if (user_helper) {
		ret = request_firmware(helper, user_helper, dev);
		if (ret) {
			dev_err(dev, "couldn't find helper firmware %s\n",
				user_helper);
			goto fail;
		}
	}
	if (user_mainfw) {
		ret = request_firmware(mainfw, user_mainfw, dev);
		if (ret) {
			dev_err(dev, "couldn't find main firmware %s\n",
				user_mainfw);
			goto fail;
		}
	}

	if (*helper && *mainfw)
		return 0;

	/* Otherwise search for firmware to use.  If neither the helper or
	 * the main firmware were specified by the user, then we need to
	 * make sure that found helper & main are from the same entry in
	 * fw_table.
	 */
	iter = fw_table;
	while (iter && iter->helper) {
		if (iter->model != card_model)
			goto next;

		if (*helper == NULL) {
			ret = request_firmware(helper, iter->helper, dev);
			if (ret)
				goto next;

			/* If the device has one-stage firmware (ie cf8305) and
			 * we've got it then we don't need to bother with the
			 * main firmware.
			 */
			if (iter->fwname == NULL)
				return 0;
		}

		if (*mainfw == NULL) {
			ret = request_firmware(mainfw, iter->fwname, dev);
			if (ret && !user_helper) {
				/* Clear the helper if it wasn't user-specified
				 * and the main firmware load failed, to ensure
				 * we don't have mismatched firmware pairs.
				 */
				release_firmware(*helper);
				*helper = NULL;
			}
		}

		if (*helper && *mainfw)
			return 0;

  next:
		iter++;
	}

  fail:
	/* Failed */
	if (*helper) {
		release_firmware(*helper);
		*helper = NULL;
	}
	if (*mainfw) {
		release_firmware(*mainfw);
		*mainfw = NULL;
	}
//.........这里部分代码省略.........