diff options
author | Ben Hutchings <ben@decadent.org.uk> | 2009-02-26 23:21:23 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2009-02-26 23:21:23 -0800 |
commit | b775a750c3afacbfac884537d466d34d50b1023b (patch) | |
tree | 453f3f2098ab95e5f6bab416335eaefde1441f2d /drivers/net/typhoon.c | |
parent | 06e1f9ffa023c030bc87491e75f625f5da4e7d97 (diff) | |
download | linux-3.10-b775a750c3afacbfac884537d466d34d50b1023b.tar.gz linux-3.10-b775a750c3afacbfac884537d466d34d50b1023b.tar.bz2 linux-3.10-b775a750c3afacbfac884537d466d34d50b1023b.zip |
typhoon: Use request_firmware()
Based on a patch by Jaswinder Singh <jaswinder@infradead.org>.
Compile-tested only.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/typhoon.c')
-rw-r--r-- | drivers/net/typhoon.c | 131 |
1 files changed, 74 insertions, 57 deletions
diff --git a/drivers/net/typhoon.c b/drivers/net/typhoon.c index a8e5651f316..cd3283f766d 100644 --- a/drivers/net/typhoon.c +++ b/drivers/net/typhoon.c @@ -129,16 +129,18 @@ static const int multicast_filter_limit = 32; #include <asm/uaccess.h> #include <linux/in6.h> #include <linux/dma-mapping.h> +#include <linux/firmware.h> #include "typhoon.h" -#include "typhoon-firmware.h" static char version[] __devinitdata = "typhoon.c: version " DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; +#define FIRMWARE_NAME "3com/typhoon.bin" MODULE_AUTHOR("David Dillow <dave@thedillows.org>"); MODULE_VERSION(DRV_MODULE_VERSION); MODULE_LICENSE("GPL"); +MODULE_FIRMWARE(FIRMWARE_NAME); MODULE_DESCRIPTION("3Com Typhoon Family (3C990, 3CR990, and variants)"); MODULE_PARM_DESC(rx_copybreak, "Packets smaller than this are copied and " "the buffer given back to the NIC. Default " @@ -1344,45 +1346,61 @@ typhoon_init_rings(struct typhoon *tp) tp->txHiRing.lastRead = 0; } +static const struct firmware *typhoon_fw; + +static int +typhoon_request_firmware(struct typhoon *tp) +{ + int err; + + if (typhoon_fw) + return 0; + + err = request_firmware(&typhoon_fw, FIRMWARE_NAME, &tp->pdev->dev); + if (err) { + printk(KERN_ERR "%s: Failed to load firmware \"%s\"\n", + tp->name, FIRMWARE_NAME); + return err; + } + + if (typhoon_fw->size < sizeof(struct typhoon_file_header) || + memcmp(typhoon_fw->data, "TYPHOON", 8)) { + printk(KERN_ERR "%s: Invalid firmware image\n", + tp->name); + release_firmware(typhoon_fw); + typhoon_fw = NULL; + return -EINVAL; + } + + return 0; +} + static int typhoon_download_firmware(struct typhoon *tp) { void __iomem *ioaddr = tp->ioaddr; struct pci_dev *pdev = tp->pdev; - struct typhoon_file_header *fHdr; - struct typhoon_section_header *sHdr; - u8 *image_data; - void *dpage; - dma_addr_t dpage_dma; + const struct typhoon_file_header *fHdr; + const struct typhoon_section_header *sHdr; + const u8 *image_data; + dma_addr_t image_dma; __sum16 csum; u32 irqEnabled; u32 irqMasked; u32 numSections; u32 section_len; - u32 len; u32 load_addr; u32 hmac; int i; int err; - err = -EINVAL; - fHdr = (struct typhoon_file_header *) typhoon_firmware_image; - image_data = (u8 *) fHdr; - - if(memcmp(fHdr->tag, "TYPHOON", 8)) { - printk(KERN_ERR "%s: Invalid firmware image!\n", tp->name); - goto err_out; - } + image_data = typhoon_fw->data; + fHdr = (struct typhoon_file_header *) image_data; - /* Cannot just map the firmware image using pci_map_single() as - * the firmware is part of the kernel/module image, so we allocate - * some consistent memory to copy the sections into, as it is simpler, - * and short-lived. If we ever split out and require a userland - * firmware loader, then we can revisit this. - */ err = -ENOMEM; - dpage = pci_alloc_consistent(pdev, PAGE_SIZE, &dpage_dma); - if(!dpage) { + image_dma = pci_map_single(pdev, (u8 *) typhoon_fw->data, + typhoon_fw->size, PCI_DMA_TODEVICE); + if (pci_dma_mapping_error(pdev, image_dma)) { printk(KERN_ERR "%s: no DMA mem for firmware\n", tp->name); goto err_out; } @@ -1430,41 +1448,34 @@ typhoon_download_firmware(struct typhoon *tp) load_addr = le32_to_cpu(sHdr->startAddr); section_len = le32_to_cpu(sHdr->len); - while(section_len) { - len = min_t(u32, section_len, PAGE_SIZE); + if (typhoon_wait_interrupt(ioaddr) < 0 || + ioread32(ioaddr + TYPHOON_REG_STATUS) != + TYPHOON_STATUS_WAITING_FOR_SEGMENT) { + printk(KERN_ERR "%s: segment ready timeout\n", + tp->name); + goto err_out_irq; + } - if(typhoon_wait_interrupt(ioaddr) < 0 || - ioread32(ioaddr + TYPHOON_REG_STATUS) != - TYPHOON_STATUS_WAITING_FOR_SEGMENT) { - printk(KERN_ERR "%s: segment ready timeout\n", - tp->name); - goto err_out_irq; - } + /* Do an pseudo IPv4 checksum on the data -- first + * need to convert each u16 to cpu order before + * summing. Fortunately, due to the properties of + * the checksum, we can do this once, at the end. + */ + csum = csum_fold(csum_partial(image_data, section_len, 0)); + + iowrite32(section_len, ioaddr + TYPHOON_REG_BOOT_LENGTH); + iowrite32(le16_to_cpu((__force __le16)csum), + ioaddr + TYPHOON_REG_BOOT_CHECKSUM); + iowrite32(load_addr, + ioaddr + TYPHOON_REG_BOOT_DEST_ADDR); + iowrite32(0, ioaddr + TYPHOON_REG_BOOT_DATA_HI); + iowrite32(image_dma + (image_data - typhoon_fw->data), + ioaddr + TYPHOON_REG_BOOT_DATA_LO); + typhoon_post_pci_writes(ioaddr); + iowrite32(TYPHOON_BOOTCMD_SEG_AVAILABLE, + ioaddr + TYPHOON_REG_COMMAND); - /* Do an pseudo IPv4 checksum on the data -- first - * need to convert each u16 to cpu order before - * summing. Fortunately, due to the properties of - * the checksum, we can do this once, at the end. - */ - csum = csum_fold(csum_partial_copy_nocheck(image_data, - dpage, len, - 0)); - - iowrite32(len, ioaddr + TYPHOON_REG_BOOT_LENGTH); - iowrite32(le16_to_cpu((__force __le16)csum), - ioaddr + TYPHOON_REG_BOOT_CHECKSUM); - iowrite32(load_addr, - ioaddr + TYPHOON_REG_BOOT_DEST_ADDR); - iowrite32(0, ioaddr + TYPHOON_REG_BOOT_DATA_HI); - iowrite32(dpage_dma, ioaddr + TYPHOON_REG_BOOT_DATA_LO); - typhoon_post_pci_writes(ioaddr); - iowrite32(TYPHOON_BOOTCMD_SEG_AVAILABLE, - ioaddr + TYPHOON_REG_COMMAND); - - image_data += len; - load_addr += len; - section_len -= len; - } + image_data += section_len; } if(typhoon_wait_interrupt(ioaddr) < 0 || @@ -1488,7 +1499,7 @@ err_out_irq: iowrite32(irqMasked, ioaddr + TYPHOON_REG_INTR_MASK); iowrite32(irqEnabled, ioaddr + TYPHOON_REG_INTR_ENABLE); - pci_free_consistent(pdev, PAGE_SIZE, dpage, dpage_dma); + pci_unmap_single(pdev, image_dma, typhoon_fw->size, PCI_DMA_TODEVICE); err_out: return err; @@ -2086,6 +2097,10 @@ typhoon_open(struct net_device *dev) struct typhoon *tp = netdev_priv(dev); int err; + err = typhoon_request_firmware(tp); + if (err) + goto out; + err = typhoon_wakeup(tp, WaitSleep); if(err < 0) { printk(KERN_ERR "%s: unable to wakeup device\n", dev->name); @@ -2624,6 +2639,8 @@ typhoon_init(void) static void __exit typhoon_cleanup(void) { + if (typhoon_fw) + release_firmware(typhoon_fw); pci_unregister_driver(&typhoon_driver); } |