* Linux device driver for PCI based Prism54
*
* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
+ * Copyright (c) 2008, Christian Lamparter <chunkeey@web.de>
*
* Based on the islsm (softmac prism54) driver, which is:
* Copyright 2004-2006 Jean-Baptiste Note <jean-baptiste.note@m4x.org>, et al.
#include <linux/init.h>
#include <linux/pci.h>
+#include <linux/slab.h>
#include <linux/firmware.h>
#include <linux/etherdevice.h>
#include <linux/delay.h>
#include <net/mac80211.h>
#include "p54.h"
+#include "lmac.h"
#include "p54pci.h"
MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
MODULE_DESCRIPTION("Prism54 PCI wireless driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("prism54pci");
+MODULE_FIRMWARE("isl3886pci");
-static struct pci_device_id p54p_table[] __devinitdata = {
+static DEFINE_PCI_DEVICE_TABLE(p54p_table) = {
/* Intersil PRISM Duette/Prism GT Wireless LAN adapter */
{ PCI_DEVICE(0x1260, 0x3890) },
/* 3COM 3CRWE154G72 Wireless LAN adapter */
static int p54p_upload_firmware(struct ieee80211_hw *dev)
{
struct p54p_priv *priv = dev->priv;
- const struct firmware *fw_entry = NULL;
__le32 reg;
int err;
__le32 *data;
P54P_WRITE(ctrl_stat, reg);
wmb();
- mdelay(50);
+ /* wait for the firmware to reset properly */
+ mdelay(10);
- err = request_firmware(&fw_entry, "isl3886", &priv->pdev->dev);
- if (err) {
- printk(KERN_ERR "%s (p54pci): cannot find firmware "
- "(isl3886)\n", pci_name(priv->pdev));
+ err = p54_parse_firmware(dev, priv->firmware);
+ if (err)
return err;
- }
- p54_parse_firmware(dev, fw_entry);
+ if (priv->common.fw_interface != FW_LM86) {
+ dev_err(&priv->pdev->dev, "wrong firmware, "
+ "please get a LM86(PCI) firmware a try again.\n");
+ return -EINVAL;
+ }
- data = (__le32 *) fw_entry->data;
- remains = fw_entry->size;
+ data = (__le32 *) priv->firmware->data;
+ remains = priv->firmware->size;
device_addr = ISL38XX_DEV_FIRMWARE_ADDR;
while (remains) {
u32 i = 0;
P54P_READ(int_enable);
}
- release_firmware(fw_entry);
-
reg = P54P_READ(ctrl_stat);
reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
wmb();
udelay(10);
+ /* wait for the firmware to boot properly */
+ mdelay(100);
+
return 0;
}
-static irqreturn_t p54p_simple_interrupt(int irq, void *dev_id)
+static void p54p_refill_rx_ring(struct ieee80211_hw *dev,
+ int ring_index, struct p54p_desc *ring, u32 ring_limit,
+ struct sk_buff **rx_buf)
{
- struct p54p_priv *priv = (struct p54p_priv *) dev_id;
- __le32 reg;
+ struct p54p_priv *priv = dev->priv;
+ struct p54p_ring_control *ring_control = priv->ring_control;
+ u32 limit, idx, i;
- reg = P54P_READ(int_ident);
- P54P_WRITE(int_ack, reg);
+ idx = le32_to_cpu(ring_control->host_idx[ring_index]);
+ limit = idx;
+ limit -= le32_to_cpu(ring_control->device_idx[ring_index]);
+ limit = ring_limit - limit;
- if (reg & P54P_READ(int_enable))
- complete(&priv->boot_comp);
+ i = idx % ring_limit;
+ while (limit-- > 1) {
+ struct p54p_desc *desc = &ring[i];
- return IRQ_HANDLED;
-}
+ if (!desc->host_addr) {
+ struct sk_buff *skb;
+ dma_addr_t mapping;
+ skb = dev_alloc_skb(priv->common.rx_mtu + 32);
+ if (!skb)
+ break;
-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;
+ mapping = pci_map_single(priv->pdev,
+ skb_tail_pointer(skb),
+ priv->common.rx_mtu + 32,
+ PCI_DMA_FROMDEVICE);
- init_completion(&priv->boot_comp);
- err = request_irq(priv->pdev->irq, &p54p_simple_interrupt,
- IRQF_SHARED, "p54pci", priv);
- if (err) {
- printk(KERN_ERR "%s (p54pci): failed to register IRQ handler\n",
- pci_name(priv->pdev));
- return err;
- }
+ if (pci_dma_mapping_error(priv->pdev, mapping)) {
+ dev_kfree_skb_any(skb);
+ dev_err(&priv->pdev->dev,
+ "RX DMA Mapping error\n");
+ break;
+ }
- eeprom = kmalloc(0x2010 + EEPROM_READBACK_LEN, GFP_KERNEL);
- if (!eeprom) {
- printk(KERN_ERR "%s (p54pci): no memory for eeprom!\n",
- pci_name(priv->pdev));
- err = -ENOMEM;
- goto out;
+ desc->host_addr = cpu_to_le32(mapping);
+ desc->device_addr = 0; // FIXME: necessary?
+ desc->len = cpu_to_le16(priv->common.rx_mtu + 32);
+ desc->flags = 0;
+ rx_buf[i] = skb;
+ }
+
+ i++;
+ idx++;
+ i %= ring_limit;
}
- 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);
+ wmb();
+ ring_control->host_idx[ring_index] = cpu_to_le32(idx);
+}
- P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_INIT));
- P54P_READ(int_enable);
- udelay(10);
+static void p54p_check_rx_ring(struct ieee80211_hw *dev, u32 *index,
+ int ring_index, struct p54p_desc *ring, u32 ring_limit,
+ struct sk_buff **rx_buf)
+{
+ struct p54p_priv *priv = dev->priv;
+ struct p54p_ring_control *ring_control = priv->ring_control;
+ struct p54p_desc *desc;
+ u32 idx, i;
+
+ i = (*index) % ring_limit;
+ (*index) = idx = le32_to_cpu(ring_control->device_idx[ring_index]);
+ idx %= ring_limit;
+ while (i != idx) {
+ u16 len;
+ struct sk_buff *skb;
+ desc = &ring[i];
+ len = le16_to_cpu(desc->len);
+ skb = rx_buf[i];
+
+ if (!skb) {
+ i++;
+ i %= ring_limit;
+ continue;
+ }
- P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET));
+ if (unlikely(len > priv->common.rx_mtu)) {
+ if (net_ratelimit())
+ dev_err(&priv->pdev->dev, "rx'd frame size "
+ "exceeds length threshold.\n");
- if (!wait_for_completion_interruptible_timeout(&priv->boot_comp, HZ)) {
- printk(KERN_ERR "%s (p54pci): Cannot boot firmware!\n",
- pci_name(priv->pdev));
- err = -EINVAL;
- goto out;
+ len = priv->common.rx_mtu;
+ }
+ skb_put(skb, len);
+
+ if (p54_rx(dev, skb)) {
+ pci_unmap_single(priv->pdev,
+ le32_to_cpu(desc->host_addr),
+ priv->common.rx_mtu + 32,
+ PCI_DMA_FROMDEVICE);
+ rx_buf[i] = NULL;
+ desc->host_addr = 0;
+ } else {
+ skb_trim(skb, 0);
+ desc->len = cpu_to_le16(priv->common.rx_mtu + 32);
+ }
+
+ i++;
+ i %= ring_limit;
}
- P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_UPDATE));
- P54P_READ(int_enable);
+ p54p_refill_rx_ring(dev, ring_index, ring, ring_limit, rx_buf);
+}
- hdr = eeprom + 0x2010;
- p54_fill_eeprom_readback(hdr);
- hdr->req_id = cpu_to_le32(priv->common.rx_start);
+static void p54p_check_tx_ring(struct ieee80211_hw *dev, u32 *index,
+ int ring_index, struct p54p_desc *ring, u32 ring_limit,
+ struct sk_buff **tx_buf)
+{
+ struct p54p_priv *priv = dev->priv;
+ struct p54p_ring_control *ring_control = priv->ring_control;
+ struct p54p_desc *desc;
+ struct sk_buff *skb;
+ u32 idx, i;
- 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);
+ i = (*index) % ring_limit;
+ (*index) = idx = le32_to_cpu(ring_control->device_idx[1]);
+ idx %= ring_limit;
- 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);
+ while (i != idx) {
+ desc = &ring[i];
- ring_control->host_idx[2] = cpu_to_le32(1);
- ring_control->host_idx[1] = cpu_to_le32(1);
+ skb = tx_buf[i];
+ tx_buf[i] = NULL;
- wmb();
- mdelay(100);
- P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE));
+ pci_unmap_single(priv->pdev, le32_to_cpu(desc->host_addr),
+ le16_to_cpu(desc->len), PCI_DMA_TODEVICE);
- wait_for_completion_interruptible_timeout(&priv->boot_comp, HZ);
- wait_for_completion_interruptible_timeout(&priv->boot_comp, HZ);
+ desc->host_addr = 0;
+ desc->device_addr = 0;
+ desc->len = 0;
+ desc->flags = 0;
- pci_unmap_single(priv->pdev, tx_mapping,
- EEPROM_READBACK_LEN, PCI_DMA_TODEVICE);
- pci_unmap_single(priv->pdev, rx_mapping,
- 0x2010, PCI_DMA_FROMDEVICE);
+ if (skb && FREE_AFTER_TX(skb))
+ p54_free_skb(dev, skb);
- 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 (p54pci): Cannot read eeprom!\n",
- pci_name(priv->pdev));
- err = -EINVAL;
- goto out;
+ i++;
+ i %= ring_limit;
}
-
- 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;
}
-static void p54p_refill_rx_ring(struct ieee80211_hw *dev)
+static void p54p_tasklet(unsigned long dev_id)
{
+ struct ieee80211_hw *dev = (struct ieee80211_hw *)dev_id;
struct p54p_priv *priv = dev->priv;
struct p54p_ring_control *ring_control = priv->ring_control;
- u32 limit, host_idx, idx;
-
- host_idx = le32_to_cpu(ring_control->host_idx[0]);
- limit = host_idx;
- limit -= le32_to_cpu(ring_control->device_idx[0]);
- limit = ARRAY_SIZE(ring_control->rx_data) - limit;
- idx = host_idx % ARRAY_SIZE(ring_control->rx_data);
- while (limit-- > 1) {
- struct p54p_desc *desc = &ring_control->rx_data[idx];
+ p54p_check_tx_ring(dev, &priv->tx_idx_mgmt, 3, ring_control->tx_mgmt,
+ ARRAY_SIZE(ring_control->tx_mgmt),
+ priv->tx_buf_mgmt);
- if (!desc->host_addr) {
- struct sk_buff *skb;
- dma_addr_t mapping;
- skb = dev_alloc_skb(MAX_RX_SIZE);
- if (!skb)
- break;
+ p54p_check_tx_ring(dev, &priv->tx_idx_data, 1, ring_control->tx_data,
+ ARRAY_SIZE(ring_control->tx_data),
+ priv->tx_buf_data);
- mapping = pci_map_single(priv->pdev,
- skb_tail_pointer(skb),
- MAX_RX_SIZE,
- PCI_DMA_FROMDEVICE);
- desc->host_addr = cpu_to_le32(mapping);
- desc->device_addr = 0; // FIXME: necessary?
- desc->len = cpu_to_le16(MAX_RX_SIZE);
- desc->flags = 0;
- priv->rx_buf[idx] = skb;
- }
+ p54p_check_rx_ring(dev, &priv->rx_idx_mgmt, 2, ring_control->rx_mgmt,
+ ARRAY_SIZE(ring_control->rx_mgmt), priv->rx_buf_mgmt);
- idx++;
- host_idx++;
- idx %= ARRAY_SIZE(ring_control->rx_data);
- }
+ p54p_check_rx_ring(dev, &priv->rx_idx_data, 0, ring_control->rx_data,
+ ARRAY_SIZE(ring_control->rx_data), priv->rx_buf_data);
wmb();
- ring_control->host_idx[0] = cpu_to_le32(host_idx);
+ P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE));
}
static irqreturn_t p54p_interrupt(int irq, void *dev_id)
{
struct ieee80211_hw *dev = dev_id;
struct p54p_priv *priv = dev->priv;
- struct p54p_ring_control *ring_control = priv->ring_control;
__le32 reg;
- spin_lock(&priv->lock);
reg = P54P_READ(int_ident);
if (unlikely(reg == cpu_to_le32(0xFFFFFFFF))) {
- spin_unlock(&priv->lock);
- return IRQ_HANDLED;
+ goto out;
}
-
P54P_WRITE(int_ack, reg);
reg &= P54P_READ(int_enable);
- if (reg & cpu_to_le32(ISL38XX_INT_IDENT_UPDATE)) {
- struct p54p_desc *desc;
- u32 idx, i;
- i = priv->tx_idx;
- i %= ARRAY_SIZE(ring_control->tx_data);
- priv->tx_idx = idx = le32_to_cpu(ring_control->device_idx[1]);
- idx %= ARRAY_SIZE(ring_control->tx_data);
-
- while (i != idx) {
- desc = &ring_control->tx_data[i];
- if (priv->tx_buf[i]) {
- kfree(priv->tx_buf[i]);
- priv->tx_buf[i] = NULL;
- }
-
- pci_unmap_single(priv->pdev, le32_to_cpu(desc->host_addr),
- le16_to_cpu(desc->len), PCI_DMA_TODEVICE);
-
- desc->host_addr = 0;
- desc->device_addr = 0;
- desc->len = 0;
- desc->flags = 0;
-
- i++;
- i %= ARRAY_SIZE(ring_control->tx_data);
- }
-
- i = priv->rx_idx;
- i %= ARRAY_SIZE(ring_control->rx_data);
- priv->rx_idx = idx = le32_to_cpu(ring_control->device_idx[0]);
- idx %= ARRAY_SIZE(ring_control->rx_data);
- while (i != idx) {
- u16 len;
- struct sk_buff *skb;
- desc = &ring_control->rx_data[i];
- len = le16_to_cpu(desc->len);
- skb = priv->rx_buf[i];
-
- skb_put(skb, len);
-
- if (p54_rx(dev, skb)) {
- pci_unmap_single(priv->pdev,
- le32_to_cpu(desc->host_addr),
- MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
-
- priv->rx_buf[i] = NULL;
- desc->host_addr = 0;
- } else {
- skb_trim(skb, 0);
- desc->len = cpu_to_le16(MAX_RX_SIZE);
- }
-
- i++;
- i %= ARRAY_SIZE(ring_control->rx_data);
- }
-
- p54p_refill_rx_ring(dev);
-
- wmb();
- P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE));
- } else if (reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT))
+ if (reg & cpu_to_le32(ISL38XX_INT_IDENT_UPDATE))
+ tasklet_schedule(&priv->tasklet);
+ else if (reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT))
complete(&priv->boot_comp);
- spin_unlock(&priv->lock);
-
+out:
return reg ? IRQ_HANDLED : IRQ_NONE;
}
-static void p54p_tx(struct ieee80211_hw *dev, struct p54_control_hdr *data,
- size_t len, int free_on_tx)
+static void p54p_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
{
+ unsigned long flags;
struct p54p_priv *priv = dev->priv;
struct p54p_ring_control *ring_control = priv->ring_control;
- unsigned long flags;
struct p54p_desc *desc;
dma_addr_t mapping;
u32 device_idx, idx, i;
spin_lock_irqsave(&priv->lock, flags);
-
device_idx = le32_to_cpu(ring_control->device_idx[1]);
idx = le32_to_cpu(ring_control->host_idx[1]);
i = idx % ARRAY_SIZE(ring_control->tx_data);
- mapping = pci_map_single(priv->pdev, data, len, PCI_DMA_TODEVICE);
+ mapping = pci_map_single(priv->pdev, skb->data, skb->len,
+ PCI_DMA_TODEVICE);
+ if (pci_dma_mapping_error(priv->pdev, mapping)) {
+ spin_unlock_irqrestore(&priv->lock, flags);
+ p54_free_skb(dev, skb);
+ dev_err(&priv->pdev->dev, "TX DMA mapping error\n");
+ return ;
+ }
+ priv->tx_buf_data[i] = skb;
+
desc = &ring_control->tx_data[i];
desc->host_addr = cpu_to_le32(mapping);
- desc->device_addr = data->req_id;
- desc->len = cpu_to_le16(len);
+ desc->device_addr = ((struct p54_hdr *)skb->data)->req_id;
+ desc->len = cpu_to_le16(skb->len);
desc->flags = 0;
wmb();
ring_control->host_idx[1] = cpu_to_le32(idx + 1);
-
- if (free_on_tx)
- priv->tx_buf[i] = data;
-
spin_unlock_irqrestore(&priv->lock, flags);
P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE));
P54P_READ(dev_int);
+}
+
+static void p54p_stop(struct ieee80211_hw *dev)
+{
+ struct p54p_priv *priv = dev->priv;
+ struct p54p_ring_control *ring_control = priv->ring_control;
+ unsigned int i;
+ struct p54p_desc *desc;
+
+ P54P_WRITE(int_enable, cpu_to_le32(0));
+ P54P_READ(int_enable);
+ udelay(10);
+
+ free_irq(priv->pdev->irq, dev);
+
+ tasklet_kill(&priv->tasklet);
+
+ P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET));
+
+ for (i = 0; i < ARRAY_SIZE(priv->rx_buf_data); i++) {
+ desc = &ring_control->rx_data[i];
+ if (desc->host_addr)
+ pci_unmap_single(priv->pdev,
+ le32_to_cpu(desc->host_addr),
+ priv->common.rx_mtu + 32,
+ PCI_DMA_FROMDEVICE);
+ kfree_skb(priv->rx_buf_data[i]);
+ priv->rx_buf_data[i] = NULL;
+ }
- /* FIXME: unlikely to happen because the device usually runs out of
- memory before we fill the ring up, but we can make it impossible */
- if (idx - device_idx > ARRAY_SIZE(ring_control->tx_data) - 2)
- printk(KERN_INFO "%s: tx overflow.\n", wiphy_name(dev->wiphy));
+ for (i = 0; i < ARRAY_SIZE(priv->rx_buf_mgmt); i++) {
+ desc = &ring_control->rx_mgmt[i];
+ if (desc->host_addr)
+ pci_unmap_single(priv->pdev,
+ le32_to_cpu(desc->host_addr),
+ priv->common.rx_mtu + 32,
+ PCI_DMA_FROMDEVICE);
+ kfree_skb(priv->rx_buf_mgmt[i]);
+ priv->rx_buf_mgmt[i] = NULL;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(priv->tx_buf_data); i++) {
+ desc = &ring_control->tx_data[i];
+ if (desc->host_addr)
+ pci_unmap_single(priv->pdev,
+ le32_to_cpu(desc->host_addr),
+ le16_to_cpu(desc->len),
+ PCI_DMA_TODEVICE);
+
+ p54_free_skb(dev, priv->tx_buf_data[i]);
+ priv->tx_buf_data[i] = NULL;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(priv->tx_buf_mgmt); i++) {
+ desc = &ring_control->tx_mgmt[i];
+ if (desc->host_addr)
+ pci_unmap_single(priv->pdev,
+ le32_to_cpu(desc->host_addr),
+ le16_to_cpu(desc->len),
+ PCI_DMA_TODEVICE);
+
+ p54_free_skb(dev, priv->tx_buf_mgmt[i]);
+ priv->tx_buf_mgmt[i] = NULL;
+ }
+
+ memset(ring_control, 0, sizeof(*ring_control));
}
static int p54p_open(struct ieee80211_hw *dev)
int err;
init_completion(&priv->boot_comp);
- err = request_irq(priv->pdev->irq, &p54p_interrupt,
+ err = request_irq(priv->pdev->irq, p54p_interrupt,
IRQF_SHARED, "p54pci", dev);
if (err) {
- printk(KERN_ERR "%s: failed to register IRQ handler\n",
- wiphy_name(dev->wiphy));
+ dev_err(&priv->pdev->dev, "failed to register IRQ handler\n");
return err;
}
memset(priv->ring_control, 0, sizeof(*priv->ring_control));
- priv->rx_idx = priv->tx_idx = 0;
- p54p_refill_rx_ring(dev);
+ err = p54p_upload_firmware(dev);
+ if (err) {
+ free_irq(priv->pdev->irq, dev);
+ return err;
+ }
+ priv->rx_idx_data = priv->tx_idx_data = 0;
+ priv->rx_idx_mgmt = priv->tx_idx_mgmt = 0;
- p54p_upload_firmware(dev);
+ p54p_refill_rx_ring(dev, 0, priv->ring_control->rx_data,
+ ARRAY_SIZE(priv->ring_control->rx_data), priv->rx_buf_data);
+
+ p54p_refill_rx_ring(dev, 2, priv->ring_control->rx_mgmt,
+ ARRAY_SIZE(priv->ring_control->rx_mgmt), priv->rx_buf_mgmt);
P54P_WRITE(ring_control_base, cpu_to_le32(priv->ring_control_dma));
P54P_READ(ring_control_base);
if (!wait_for_completion_interruptible_timeout(&priv->boot_comp, HZ)) {
printk(KERN_ERR "%s: Cannot boot firmware!\n",
wiphy_name(dev->wiphy));
- free_irq(priv->pdev->irq, dev);
+ p54p_stop(dev);
return -ETIMEDOUT;
}
return 0;
}
-static void p54p_stop(struct ieee80211_hw *dev)
-{
- struct p54p_priv *priv = dev->priv;
- struct p54p_ring_control *ring_control = priv->ring_control;
- unsigned int i;
- struct p54p_desc *desc;
-
- P54P_WRITE(int_enable, cpu_to_le32(0));
- P54P_READ(int_enable);
- udelay(10);
-
- free_irq(priv->pdev->irq, dev);
-
- P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET));
-
- for (i = 0; i < ARRAY_SIZE(priv->rx_buf); i++) {
- desc = &ring_control->rx_data[i];
- if (desc->host_addr)
- pci_unmap_single(priv->pdev, le32_to_cpu(desc->host_addr),
- MAX_RX_SIZE, PCI_DMA_FROMDEVICE);
- kfree_skb(priv->rx_buf[i]);
- priv->rx_buf[i] = NULL;
- }
-
- for (i = 0; i < ARRAY_SIZE(priv->tx_buf); i++) {
- desc = &ring_control->tx_data[i];
- if (desc->host_addr)
- pci_unmap_single(priv->pdev, le32_to_cpu(desc->host_addr),
- le16_to_cpu(desc->len), PCI_DMA_TODEVICE);
-
- kfree(priv->tx_buf[i]);
- priv->tx_buf[i] = NULL;
- }
-
- memset(ring_control, 0, sizeof(ring_control));
-}
-
static int __devinit p54p_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct ieee80211_hw *dev;
unsigned long mem_addr, mem_len;
int err;
- DECLARE_MAC_BUF(mac);
err = pci_enable_device(pdev);
if (err) {
- printk(KERN_ERR "%s (p54pci): Cannot enable new PCI device\n",
- pci_name(pdev));
+ dev_err(&pdev->dev, "Cannot enable new PCI device\n");
return err;
}
mem_addr = pci_resource_start(pdev, 0);
mem_len = pci_resource_len(pdev, 0);
if (mem_len < sizeof(struct p54p_csr)) {
- printk(KERN_ERR "%s (p54pci): Too short PCI resources\n",
- pci_name(pdev));
- pci_disable_device(pdev);
- return err;
+ dev_err(&pdev->dev, "Too short PCI resources\n");
+ goto err_disable_dev;
}
err = pci_request_regions(pdev, "p54pci");
if (err) {
- printk(KERN_ERR "%s (p54pci): Cannot obtain PCI resources\n",
- pci_name(pdev));
- return err;
+ dev_err(&pdev->dev, "Cannot obtain PCI resources\n");
+ goto err_disable_dev;
}
- if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) ||
- pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
- printk(KERN_ERR "%s (p54pci): No suitable DMA available\n",
- pci_name(pdev));
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) ||
+ pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
+ dev_err(&pdev->dev, "No suitable DMA available\n");
goto err_free_reg;
}
dev = p54_init_common(sizeof(*priv));
if (!dev) {
- printk(KERN_ERR "%s (p54pci): ieee80211 alloc failed\n",
- pci_name(pdev));
+ dev_err(&pdev->dev, "ieee80211 alloc failed\n");
err = -ENOMEM;
goto err_free_reg;
}
priv->map = ioremap(mem_addr, mem_len);
if (!priv->map) {
- printk(KERN_ERR "%s (p54pci): Cannot map device memory\n",
- pci_name(pdev));
- err = -EINVAL; // TODO: use a better error code?
+ dev_err(&pdev->dev, "Cannot map device memory\n");
+ err = -ENOMEM;
goto err_free_dev;
}
priv->ring_control = pci_alloc_consistent(pdev, sizeof(*priv->ring_control),
&priv->ring_control_dma);
if (!priv->ring_control) {
- printk(KERN_ERR "%s (p54pci): Cannot allocate rings\n",
- pci_name(pdev));
+ dev_err(&pdev->dev, "Cannot allocate rings\n");
err = -ENOMEM;
goto err_iounmap;
}
- memset(priv->ring_control, 0, sizeof(*priv->ring_control));
-
- err = p54p_upload_firmware(dev);
- if (err)
- goto err_free_desc;
-
- err = p54p_read_eeprom(dev);
- if (err)
- goto err_free_desc;
-
priv->common.open = p54p_open;
priv->common.stop = p54p_stop;
priv->common.tx = p54p_tx;
spin_lock_init(&priv->lock);
+ tasklet_init(&priv->tasklet, p54p_tasklet, (unsigned long)dev);
- err = ieee80211_register_hw(dev);
+ err = request_firmware(&priv->firmware, "isl3886pci",
+ &priv->pdev->dev);
if (err) {
- printk(KERN_ERR "%s (p54pci): Cannot register netdevice\n",
- pci_name(pdev));
- goto err_free_common;
+ dev_err(&pdev->dev, "Cannot find firmware (isl3886pci)\n");
+ err = request_firmware(&priv->firmware, "isl3886",
+ &priv->pdev->dev);
+ if (err)
+ goto err_free_common;
}
- printk(KERN_INFO "%s: hwaddr %s, isl38%02x\n",
- wiphy_name(dev->wiphy),
- print_mac(mac, dev->wiphy->perm_addr),
- priv->common.version);
+ err = p54p_open(dev);
+ if (err)
+ goto err_free_common;
+ err = p54_read_eeprom(dev);
+ p54p_stop(dev);
+ if (err)
+ goto err_free_common;
+
+ err = p54_register_common(dev, &pdev->dev);
+ if (err)
+ goto err_free_common;
return 0;
err_free_common:
- p54_free_common(dev);
-
- err_free_desc:
+ release_firmware(priv->firmware);
pci_free_consistent(pdev, sizeof(*priv->ring_control),
priv->ring_control, priv->ring_control_dma);
err_free_dev:
pci_set_drvdata(pdev, NULL);
- ieee80211_free_hw(dev);
+ p54_free_common(dev);
err_free_reg:
pci_release_regions(pdev);
+ err_disable_dev:
pci_disable_device(pdev);
return err;
}
if (!dev)
return;
- ieee80211_unregister_hw(dev);
+ p54_unregister_common(dev);
priv = dev->priv;
+ release_firmware(priv->firmware);
pci_free_consistent(pdev, sizeof(*priv->ring_control),
priv->ring_control, priv->ring_control_dma);
- p54_free_common(dev);
iounmap(priv->map);
pci_release_regions(pdev);
pci_disable_device(pdev);
- ieee80211_free_hw(dev);
+ p54_free_common(dev);
}
#ifdef CONFIG_PM
struct ieee80211_hw *dev = pci_get_drvdata(pdev);
struct p54p_priv *priv = dev->priv;
- if (priv->common.mode != IEEE80211_IF_TYPE_INVALID) {
+ if (priv->common.mode != NL80211_IFTYPE_UNSPECIFIED) {
ieee80211_stop_queues(dev);
p54p_stop(dev);
}
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
- if (priv->common.mode != IEEE80211_IF_TYPE_INVALID) {
+ if (priv->common.mode != NL80211_IFTYPE_UNSPECIFIED) {
p54p_open(dev);
ieee80211_wake_queues(dev);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff