static int p54spi_request_eeprom(struct ieee80211_hw *dev)
{
struct p54s_priv *priv = dev->priv;
const struct firmware *eeprom;
int ret;
/* allow users to customize their eeprom.
*/
ret = request_firmware_direct(&eeprom, "3826.eeprom", &priv->spi->dev);
if (ret < 0) {
#ifdef CONFIG_P54_SPI_DEFAULT_EEPROM
dev_info(&priv->spi->dev, "loading default eeprom...\n");
ret = p54_parse_eeprom(dev, (void *) p54spi_eeprom,
sizeof(p54spi_eeprom));
#else
dev_err(&priv->spi->dev, "Failed to request user eeprom\n");
#endif /* CONFIG_P54_SPI_DEFAULT_EEPROM */
} else {
dev_info(&priv->spi->dev, "loading user eeprom...\n");
ret = p54_parse_eeprom(dev, (void *) eeprom->data,
(int)eeprom->size);
release_firmware(eeprom);
}
return ret;
}
int p54_read_eeprom(struct ieee80211_hw *dev)
{
struct p54_common *priv = dev->priv;
size_t eeprom_size = 0x2020, offset = 0, blocksize, maxblocksize;
int ret = -ENOMEM;
void *eeprom;
maxblocksize = EEPROM_READBACK_LEN;
if (priv->fw_var >= 0x509)
maxblocksize -= 0xc;
else
maxblocksize -= 0x4;
eeprom = kzalloc(eeprom_size, GFP_KERNEL);
if (unlikely(!eeprom))
goto free;
while (eeprom_size) {
blocksize = min(eeprom_size, maxblocksize);
ret = p54_download_eeprom(priv, (void *) (eeprom + offset),
offset, blocksize);
if (unlikely(ret))
goto free;
offset += blocksize;
eeprom_size -= blocksize;
}
ret = p54_parse_eeprom(dev, eeprom, offset);
free:
kfree(eeprom);
return ret;
}
static int p54spi_request_eeprom(struct ieee80211_hw *dev)
{
struct p54s_priv *priv = dev->priv;
const struct firmware *eeprom;
int ret;
/*
* allow users to customize their eeprom.
*/
ret = request_firmware(&eeprom, "3826.eeprom", &priv->spi->dev);
if (ret < 0) {
dev_info(&priv->spi->dev, "loading default eeprom...\n");
ret = p54_parse_eeprom(dev, (void *) p54spi_eeprom,
sizeof(p54spi_eeprom));
} else {
dev_info(&priv->spi->dev, "loading user eeprom...\n");
ret = p54_parse_eeprom(dev, (void *) eeprom->data,
(int)eeprom->size);
release_firmware(eeprom);
}
return ret;
}
static int p54u_read_eeprom(struct ieee80211_hw *dev)
{
struct p54u_priv *priv = dev->priv;
void *buf;
struct p54_control_hdr *hdr;
int err, alen;
size_t offset = priv->hw_type ? 0x10 : 0x20;
buf = kmalloc(0x2020, GFP_KERNEL);
if (!buf) {
printk(KERN_ERR "prism54usb: cannot allocate memory for "
"eeprom readback!\n");
return -ENOMEM;
}
if (priv->hw_type) {
*((u32 *) buf) = priv->common.rx_start;
err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32));
if (err) {
printk(KERN_ERR "prism54usb: addr send failed\n");
goto fail;
}
} else {
struct net2280_reg_write *reg = buf;
reg->port = cpu_to_le16(NET2280_DEV_U32);
reg->addr = cpu_to_le32(P54U_DEV_BASE);
reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA);
err = p54u_bulk_msg(priv, P54U_PIPE_DEV, buf, sizeof(*reg));
if (err) {
printk(KERN_ERR "prism54usb: dev_int send failed\n");
goto fail;
}
}
hdr = buf + priv->common.tx_hdr_len;
p54_fill_eeprom_readback(hdr);
hdr->req_id = cpu_to_le32(priv->common.rx_start);
if (priv->common.tx_hdr_len) {
struct net2280_tx_hdr *tx_hdr = buf;
tx_hdr->device_addr = hdr->req_id;
tx_hdr->len = cpu_to_le16(EEPROM_READBACK_LEN);
}
/* we can just pretend to send 0x2000 bytes of nothing in the headers */
err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf,
EEPROM_READBACK_LEN + priv->common.tx_hdr_len);
if (err) {
printk(KERN_ERR "prism54usb: eeprom req send failed\n");
goto fail;
}
err = usb_bulk_msg(priv->udev,
usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA),
buf, 0x2020, &alen, 1000);
if (!err && alen > offset) {
p54_parse_eeprom(dev, (u8 *)buf + offset, alen - offset);
} else {
printk(KERN_ERR "prism54usb: eeprom read failed!\n");
err = -EINVAL;
goto fail;
}
fail:
kfree(buf);
return err;
}
static int p54p_read_eeprom(struct ieee80211_hw *dev)
{
struct p54p_priv *priv = dev->priv;
struct p54p_ring_control *ring_control = priv->ring_control;
int err;
struct p54_control_hdr *hdr;
void *eeprom;
dma_addr_t rx_mapping, tx_mapping;
u16 alen;
init_completion(&priv->boot_comp);
err = request_irq(priv->pdev->irq, &p54p_simple_interrupt,
IRQF_SHARED, "prism54pci", priv);
if (err) {
printk(KERN_ERR "%s (prism54pci): failed to register IRQ handler\n",
pci_name(priv->pdev));
return err;
}
eeprom = kmalloc(0x2010 + EEPROM_READBACK_LEN, GFP_KERNEL);
if (!eeprom) {
printk(KERN_ERR "%s (prism54pci): no memory for eeprom!\n",
pci_name(priv->pdev));
err = -ENOMEM;
goto out;
}
memset(ring_control, 0, sizeof(*ring_control));
P54P_WRITE(ring_control_base, cpu_to_le32(priv->ring_control_dma));
P54P_READ(ring_control_base);
udelay(10);
P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_INIT));
P54P_READ(int_enable);
udelay(10);
P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET));
if (!wait_for_completion_interruptible_timeout(&priv->boot_comp, HZ)) {
printk(KERN_ERR "%s (prism54pci): Cannot boot firmware!\n",
pci_name(priv->pdev));
err = -EINVAL;
goto out;
}
P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_UPDATE));
P54P_READ(int_enable);
hdr = eeprom + 0x2010;
p54_fill_eeprom_readback(hdr);
hdr->req_id = cpu_to_le32(priv->common.rx_start);
rx_mapping = pci_map_single(priv->pdev, eeprom,
0x2010, PCI_DMA_FROMDEVICE);
tx_mapping = pci_map_single(priv->pdev, (void *)hdr,
EEPROM_READBACK_LEN, PCI_DMA_TODEVICE);
ring_control->rx_mgmt[0].host_addr = cpu_to_le32(rx_mapping);
ring_control->rx_mgmt[0].len = cpu_to_le16(0x2010);
ring_control->tx_data[0].host_addr = cpu_to_le32(tx_mapping);
ring_control->tx_data[0].device_addr = hdr->req_id;
ring_control->tx_data[0].len = cpu_to_le16(EEPROM_READBACK_LEN);
ring_control->host_idx[2] = cpu_to_le32(1);
ring_control->host_idx[1] = cpu_to_le32(1);
wmb();
mdelay(100);
P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE));
wait_for_completion_interruptible_timeout(&priv->boot_comp, HZ);
wait_for_completion_interruptible_timeout(&priv->boot_comp, HZ);
pci_unmap_single(priv->pdev, tx_mapping,
EEPROM_READBACK_LEN, PCI_DMA_TODEVICE);
pci_unmap_single(priv->pdev, rx_mapping,
0x2010, PCI_DMA_FROMDEVICE);
alen = le16_to_cpu(ring_control->rx_mgmt[0].len);
if (le32_to_cpu(ring_control->device_idx[2]) != 1 ||
alen < 0x10) {
printk(KERN_ERR "%s (prism54pci): Cannot read eeprom!\n",
pci_name(priv->pdev));
err = -EINVAL;
goto out;
}
p54_parse_eeprom(dev, (u8 *)eeprom + 0x10, alen - 0x10);
out:
kfree(eeprom);
P54P_WRITE(int_enable, cpu_to_le32(0));
P54P_READ(int_enable);
udelay(10);
free_irq(priv->pdev->irq, priv);
P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET));
return err;
}