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path: root/drivers/net/wireless/p54/p54pci.c
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Diffstat (limited to 'drivers/net/wireless/p54/p54pci.c')
-rw-r--r--drivers/net/wireless/p54/p54pci.c697
1 files changed, 697 insertions, 0 deletions
diff --git a/drivers/net/wireless/p54/p54pci.c b/drivers/net/wireless/p54/p54pci.c
new file mode 100644
index 00000000000..fa527723fbe
--- /dev/null
+++ b/drivers/net/wireless/p54/p54pci.c
@@ -0,0 +1,697 @@
+
+/*
+ * Linux device driver for PCI based Prism54
+ *
+ * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
+ *
+ * Based on the islsm (softmac prism54) driver, which is:
+ * Copyright 2004-2006 Jean-Baptiste Note <jean-baptiste.note@m4x.org>, et al.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/firmware.h>
+#include <linux/etherdevice.h>
+#include <linux/delay.h>
+#include <linux/completion.h>
+#include <net/mac80211.h>
+
+#include "p54.h"
+#include "p54pci.h"
+
+MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
+MODULE_DESCRIPTION("Prism54 PCI wireless driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("prism54pci");
+
+static struct pci_device_id p54p_table[] __devinitdata = {
+ /* Intersil PRISM Duette/Prism GT Wireless LAN adapter */
+ { PCI_DEVICE(0x1260, 0x3890) },
+ /* 3COM 3CRWE154G72 Wireless LAN adapter */
+ { PCI_DEVICE(0x10b7, 0x6001) },
+ /* Intersil PRISM Indigo Wireless LAN adapter */
+ { PCI_DEVICE(0x1260, 0x3877) },
+ /* Intersil PRISM Javelin/Xbow Wireless LAN adapter */
+ { PCI_DEVICE(0x1260, 0x3886) },
+ { },
+};
+
+MODULE_DEVICE_TABLE(pci, p54p_table);
+
+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;
+ u32 remains, left, device_addr;
+
+ P54P_WRITE(int_enable, cpu_to_le32(0));
+ P54P_READ(int_enable);
+ udelay(10);
+
+ reg = P54P_READ(ctrl_stat);
+ reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
+ reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT);
+ P54P_WRITE(ctrl_stat, reg);
+ P54P_READ(ctrl_stat);
+ udelay(10);
+
+ reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
+ P54P_WRITE(ctrl_stat, reg);
+ wmb();
+ udelay(10);
+
+ reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
+ P54P_WRITE(ctrl_stat, reg);
+ wmb();
+
+ mdelay(50);
+
+ err = request_firmware(&fw_entry, "isl3886", &priv->pdev->dev);
+ if (err) {
+ printk(KERN_ERR "%s (prism54pci): cannot find firmware "
+ "(isl3886)\n", pci_name(priv->pdev));
+ return err;
+ }
+
+ p54_parse_firmware(dev, fw_entry);
+
+ data = (__le32 *) fw_entry->data;
+ remains = fw_entry->size;
+ device_addr = ISL38XX_DEV_FIRMWARE_ADDR;
+ while (remains) {
+ u32 i = 0;
+ left = min((u32)0x1000, remains);
+ P54P_WRITE(direct_mem_base, cpu_to_le32(device_addr));
+ P54P_READ(int_enable);
+
+ device_addr += 0x1000;
+ while (i < left) {
+ P54P_WRITE(direct_mem_win[i], *data++);
+ i += sizeof(u32);
+ }
+
+ remains -= left;
+ 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);
+ reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT);
+ P54P_WRITE(ctrl_stat, reg);
+ P54P_READ(ctrl_stat);
+ udelay(10);
+
+ reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
+ P54P_WRITE(ctrl_stat, reg);
+ wmb();
+ udelay(10);
+
+ reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
+ P54P_WRITE(ctrl_stat, reg);
+ wmb();
+ udelay(10);
+
+ return 0;
+}
+
+static irqreturn_t p54p_simple_interrupt(int irq, void *dev_id)
+{
+ struct p54p_priv *priv = (struct p54p_priv *) dev_id;
+ __le32 reg;
+
+ reg = P54P_READ(int_ident);
+ P54P_WRITE(int_ack, reg);
+
+ if (reg & P54P_READ(int_enable))
+ complete(&priv->boot_comp);
+
+ return IRQ_HANDLED;
+}
+
+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;
+}
+
+static void p54p_refill_rx_ring(struct ieee80211_hw *dev)
+{
+ 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];
+
+ if (!desc->host_addr) {
+ struct sk_buff *skb;
+ dma_addr_t mapping;
+ skb = dev_alloc_skb(MAX_RX_SIZE);
+ if (!skb)
+ break;
+
+ 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;
+ }
+
+ idx++;
+ host_idx++;
+ idx %= ARRAY_SIZE(ring_control->rx_data);
+ }
+
+ wmb();
+ ring_control->host_idx[0] = cpu_to_le32(host_idx);
+}
+
+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;
+ }
+
+ 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))
+ complete(&priv->boot_comp);
+
+ spin_unlock(&priv->lock);
+
+ 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)
+{
+ 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);
+ 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->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);
+
+ /* 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));
+}
+
+static int p54p_open(struct ieee80211_hw *dev)
+{
+ struct p54p_priv *priv = dev->priv;
+ int err;
+
+ init_completion(&priv->boot_comp);
+ err = request_irq(priv->pdev->irq, &p54p_interrupt,
+ IRQF_SHARED, "prism54pci", dev);
+ if (err) {
+ printk(KERN_ERR "%s: failed to register IRQ handler\n",
+ wiphy_name(dev->wiphy));
+ return err;
+ }
+
+ memset(priv->ring_control, 0, sizeof(*priv->ring_control));
+ priv->rx_idx = priv->tx_idx = 0;
+ p54p_refill_rx_ring(dev);
+
+ p54p_upload_firmware(dev);
+
+ P54P_WRITE(ring_control_base, cpu_to_le32(priv->ring_control_dma));
+ P54P_READ(ring_control_base);
+ wmb();
+ udelay(10);
+
+ P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_INIT));
+ P54P_READ(int_enable);
+ wmb();
+ udelay(10);
+
+ P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_RESET));
+ P54P_READ(dev_int);
+
+ 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);
+ return -ETIMEDOUT;
+ }
+
+ P54P_WRITE(int_enable, cpu_to_le32(ISL38XX_INT_IDENT_UPDATE));
+ P54P_READ(int_enable);
+ wmb();
+ udelay(10);
+
+ P54P_WRITE(dev_int, cpu_to_le32(ISL38XX_DEV_INT_UPDATE));
+ P54P_READ(dev_int);
+ wmb();
+ udelay(10);
+
+ 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 p54p_priv *priv;
+ 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 (prism54pci): Cannot enable new PCI device\n",
+ pci_name(pdev));
+ 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 (prism54pci): Too short PCI resources\n",
+ pci_name(pdev));
+ pci_disable_device(pdev);
+ return err;
+ }
+
+ err = pci_request_regions(pdev, "prism54pci");
+ if (err) {
+ printk(KERN_ERR "%s (prism54pci): Cannot obtain PCI resources\n",
+ pci_name(pdev));
+ return err;
+ }
+
+ if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) ||
+ pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
+ printk(KERN_ERR "%s (prism54pci): No suitable DMA available\n",
+ pci_name(pdev));
+ goto err_free_reg;
+ }
+
+ pci_set_master(pdev);
+ pci_try_set_mwi(pdev);
+
+ pci_write_config_byte(pdev, 0x40, 0);
+ pci_write_config_byte(pdev, 0x41, 0);
+
+ dev = p54_init_common(sizeof(*priv));
+ if (!dev) {
+ printk(KERN_ERR "%s (prism54pci): ieee80211 alloc failed\n",
+ pci_name(pdev));
+ err = -ENOMEM;
+ goto err_free_reg;
+ }
+
+ priv = dev->priv;
+ priv->pdev = pdev;
+
+ SET_IEEE80211_DEV(dev, &pdev->dev);
+ pci_set_drvdata(pdev, dev);
+
+ priv->map = ioremap(mem_addr, mem_len);
+ if (!priv->map) {
+ printk(KERN_ERR "%s (prism54pci): Cannot map device memory\n",
+ pci_name(pdev));
+ err = -EINVAL; // TODO: use a better error code?
+ 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 (prism54pci): Cannot allocate rings\n",
+ pci_name(pdev));
+ 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);
+
+ err = ieee80211_register_hw(dev);
+ if (err) {
+ printk(KERN_ERR "%s (prism54pci): Cannot register netdevice\n",
+ pci_name(pdev));
+ 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);
+
+ return 0;
+
+ err_free_common:
+ p54_free_common(dev);
+
+ err_free_desc:
+ pci_free_consistent(pdev, sizeof(*priv->ring_control),
+ priv->ring_control, priv->ring_control_dma);
+
+ err_iounmap:
+ iounmap(priv->map);
+
+ err_free_dev:
+ pci_set_drvdata(pdev, NULL);
+ ieee80211_free_hw(dev);
+
+ err_free_reg:
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ return err;
+}
+
+static void __devexit p54p_remove(struct pci_dev *pdev)
+{
+ struct ieee80211_hw *dev = pci_get_drvdata(pdev);
+ struct p54p_priv *priv;
+
+ if (!dev)
+ return;
+
+ ieee80211_unregister_hw(dev);
+ priv = dev->priv;
+ 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);
+}
+
+#ifdef CONFIG_PM
+static int p54p_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct ieee80211_hw *dev = pci_get_drvdata(pdev);
+ struct p54p_priv *priv = dev->priv;
+
+ if (priv->common.mode != IEEE80211_IF_TYPE_INVALID) {
+ ieee80211_stop_queues(dev);
+ p54p_stop(dev);
+ }
+
+ pci_save_state(pdev);
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+ return 0;
+}
+
+static int p54p_resume(struct pci_dev *pdev)
+{
+ struct ieee80211_hw *dev = pci_get_drvdata(pdev);
+ struct p54p_priv *priv = dev->priv;
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+
+ if (priv->common.mode != IEEE80211_IF_TYPE_INVALID) {
+ p54p_open(dev);
+ ieee80211_start_queues(dev);
+ }
+
+ return 0;
+}
+#endif /* CONFIG_PM */
+
+static struct pci_driver p54p_driver = {
+ .name = "prism54pci",
+ .id_table = p54p_table,
+ .probe = p54p_probe,
+ .remove = __devexit_p(p54p_remove),
+#ifdef CONFIG_PM
+ .suspend = p54p_suspend,
+ .resume = p54p_resume,
+#endif /* CONFIG_PM */
+};
+
+static int __init p54p_init(void)
+{
+ return pci_register_driver(&p54p_driver);
+}
+
+static void __exit p54p_exit(void)
+{
+ pci_unregister_driver(&p54p_driver);
+}
+
+module_init(p54p_init);
+module_exit(p54p_exit);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 08:57:32 +0000