mirror of https://gitee.com/openkylin/linux.git
drivers/net/mac8390.c: Add mac8390_init function
Reduce indentation, make code a little neater. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Joe Perches
David S. Miller
parent
8e4d9696b4
commit
f6de7acc42
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@ -295,16 +295,114 @@ static int __init mac8390_memsize(unsigned long membase)
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return i * 0x1000;
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}
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struct net_device * __init mac8390_probe(int unit)
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static bool __init mac8390_init(struct net_device *dev, struct nubus_dev *ndev,
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enum mac8390_type cardtype)
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{
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struct net_device *dev;
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volatile unsigned short *i;
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struct nubus_dev *ndev = NULL;
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int err = -ENODEV;
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struct nubus_dir dir;
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struct nubus_dirent ent;
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int offset;
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volatile unsigned short *i;
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printk_once(KERN_INFO pr_fmt(version));
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dev->irq = SLOT2IRQ(ndev->board->slot);
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/* This is getting to be a habit */
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dev->base_addr = (ndev->board->slot_addr |
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((ndev->board->slot & 0xf) << 20));
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/*
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* Get some Nubus info - we will trust the card's idea
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* of where its memory and registers are.
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*/
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if (nubus_get_func_dir(ndev, &dir) == -1) {
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pr_err("%s: Unable to get Nubus functional directory for slot %X!\n",
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dev->name, ndev->board->slot);
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return false;
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}
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/* Get the MAC address */
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if (nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent) == -1) {
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pr_info("%s: Couldn't get MAC address!\n", dev->name);
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return false;
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}
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nubus_get_rsrc_mem(dev->dev_addr, &ent, 6);
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if (useresources[cardtype] == 1) {
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nubus_rewinddir(&dir);
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if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS,
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&ent) == -1) {
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pr_err("%s: Memory offset resource for slot %X not found!\n",
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dev->name, ndev->board->slot);
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return false;
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}
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nubus_get_rsrc_mem(&offset, &ent, 4);
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dev->mem_start = dev->base_addr + offset;
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/* yes, this is how the Apple driver does it */
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dev->base_addr = dev->mem_start + 0x10000;
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nubus_rewinddir(&dir);
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if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH,
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&ent) == -1) {
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pr_info("%s: Memory length resource for slot %X not found, probing\n",
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dev->name, ndev->board->slot);
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offset = mac8390_memsize(dev->mem_start);
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} else {
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nubus_get_rsrc_mem(&offset, &ent, 4);
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}
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dev->mem_end = dev->mem_start + offset;
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} else {
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switch (cardtype) {
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case MAC8390_KINETICS:
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case MAC8390_DAYNA: /* it's the same */
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dev->base_addr = (int)(ndev->board->slot_addr +
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DAYNA_8390_BASE);
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dev->mem_start = (int)(ndev->board->slot_addr +
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DAYNA_8390_MEM);
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dev->mem_end = dev->mem_start +
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mac8390_memsize(dev->mem_start);
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break;
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case MAC8390_INTERLAN:
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dev->base_addr = (int)(ndev->board->slot_addr +
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INTERLAN_8390_BASE);
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dev->mem_start = (int)(ndev->board->slot_addr +
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INTERLAN_8390_MEM);
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dev->mem_end = dev->mem_start +
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mac8390_memsize(dev->mem_start);
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break;
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case MAC8390_CABLETRON:
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dev->base_addr = (int)(ndev->board->slot_addr +
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CABLETRON_8390_BASE);
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dev->mem_start = (int)(ndev->board->slot_addr +
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CABLETRON_8390_MEM);
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/* The base address is unreadable if 0x00
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* has been written to the command register
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* Reset the chip by writing E8390_NODMA +
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* E8390_PAGE0 + E8390_STOP just to be
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* sure
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*/
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i = (void *)dev->base_addr;
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*i = 0x21;
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dev->mem_end = dev->mem_start +
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mac8390_memsize(dev->mem_start);
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break;
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default:
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pr_err("Card type %s is unsupported, sorry\n",
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ndev->board->name);
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return false;
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}
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}
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return true;
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}
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struct net_device * __init mac8390_probe(int unit)
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{
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struct net_device *dev;
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struct nubus_dev *ndev = NULL;
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int err = -ENODEV;
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static unsigned int slots;
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enum mac8390_type cardtype;
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@ -324,111 +422,16 @@ struct net_device * __init mac8390_probe(int unit)
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while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET,
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ndev))) {
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/* Have we seen it already? */
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if (slots & (1<<ndev->board->slot))
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if (slots & (1 << ndev->board->slot))
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continue;
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slots |= 1<<ndev->board->slot;
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slots |= 1 << ndev->board->slot;
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cardtype = mac8390_ident(ndev);
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if (cardtype == MAC8390_NONE)
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continue;
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printk_once(KERN_INFO pr_fmt(version));
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dev->irq = SLOT2IRQ(ndev->board->slot);
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/* This is getting to be a habit */
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dev->base_addr = (ndev->board->slot_addr |
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((ndev->board->slot & 0xf) << 20));
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/* Get some Nubus info - we will trust the card's idea
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of where its memory and registers are. */
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if (nubus_get_func_dir(ndev, &dir) == -1) {
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pr_err("%s: Unable to get Nubus functional directory for slot %X!\n",
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dev->name, ndev->board->slot);
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if (!mac8390_init(dev, ndev, cardtype))
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continue;
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}
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/* Get the MAC address */
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if (nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent) == -1) {
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pr_info("%s: Couldn't get MAC address!\n", dev->name);
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continue;
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} else {
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nubus_get_rsrc_mem(dev->dev_addr, &ent, 6);
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}
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if (useresources[cardtype] == 1) {
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nubus_rewinddir(&dir);
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if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS,
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&ent) == -1) {
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pr_err("%s: Memory offset resource for slot %X not found!\n",
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dev->name, ndev->board->slot);
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continue;
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}
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nubus_get_rsrc_mem(&offset, &ent, 4);
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dev->mem_start = dev->base_addr + offset;
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/* yes, this is how the Apple driver does it */
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dev->base_addr = dev->mem_start + 0x10000;
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nubus_rewinddir(&dir);
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if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH,
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&ent) == -1) {
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pr_info("%s: Memory length resource for slot %X not found, probing\n",
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dev->name, ndev->board->slot);
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offset = mac8390_memsize(dev->mem_start);
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} else {
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nubus_get_rsrc_mem(&offset, &ent, 4);
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}
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dev->mem_end = dev->mem_start + offset;
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} else {
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switch (cardtype) {
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case MAC8390_KINETICS:
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case MAC8390_DAYNA: /* it's the same */
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dev->base_addr =
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(int)(ndev->board->slot_addr +
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DAYNA_8390_BASE);
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dev->mem_start =
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(int)(ndev->board->slot_addr +
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DAYNA_8390_MEM);
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dev->mem_end =
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dev->mem_start +
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mac8390_memsize(dev->mem_start);
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break;
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case MAC8390_INTERLAN:
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dev->base_addr =
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(int)(ndev->board->slot_addr +
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INTERLAN_8390_BASE);
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dev->mem_start =
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(int)(ndev->board->slot_addr +
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INTERLAN_8390_MEM);
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dev->mem_end =
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dev->mem_start +
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mac8390_memsize(dev->mem_start);
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break;
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case MAC8390_CABLETRON:
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dev->base_addr =
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(int)(ndev->board->slot_addr +
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CABLETRON_8390_BASE);
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dev->mem_start =
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(int)(ndev->board->slot_addr +
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CABLETRON_8390_MEM);
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/* The base address is unreadable if 0x00
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* has been written to the command register
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* Reset the chip by writing E8390_NODMA +
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* E8390_PAGE0 + E8390_STOP just to be
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* sure
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*/
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i = (void *)dev->base_addr;
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*i = 0x21;
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dev->mem_end =
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dev->mem_start +
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mac8390_memsize(dev->mem_start);
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break;
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default:
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pr_err("Card type %s is unsupported, sorry\n",
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ndev->board->name);
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continue;
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}
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}
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/* Do the nasty 8390 stuff */
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if (!mac8390_initdev(dev, ndev, cardtype))
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