VServer 1.9.2 (patch-2.6.8.1-vs1.9.2.diff)
[linux-2.6.git] / drivers / net / wireless / prism54 / islpci_dev.c
index 1571939..d96d621 100644 (file)
@@ -30,6 +30,7 @@
 
 #include <asm/io.h>
 
+#include "prismcompat.h"
 #include "isl_38xx.h"
 #include "isl_ioctl.h"
 #include "islpci_dev.h"
 #include "islpci_eth.h"
 #include "oid_mgt.h"
 
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,0)
-#define prism54_synchronize_irq(irq) synchronize_irq()
-#else
-#define prism54_synchronize_irq(irq) synchronize_irq(irq)
-#endif
-
 #define ISL3877_IMAGE_FILE     "isl3877"
+#define ISL3886_IMAGE_FILE     "isl3886"
 #define ISL3890_IMAGE_FILE     "isl3890"
 
+static int prism54_bring_down(islpci_private *);
+static int islpci_alloc_memory(islpci_private *);
+
 /* Temporary dummy MAC address to use until firmware is loaded.
  * The idea there is that some tools (such as nameif) may query
  * the MAC address before the netdev is 'open'. By using a valid
  * ndev->set_mac_address. Jean II */
 const unsigned char    dummy_mac[6] = { 0x00, 0x30, 0xB4, 0x00, 0x00, 0x00 };
 
+static int
+isl_upload_firmware(islpci_private *priv)
+{
+       u32 reg, rc;
+       void *device_base = priv->device_base;
+
+       /* clear the RAMBoot and the Reset bit */
+       reg = readl(device_base + ISL38XX_CTRL_STAT_REG);
+       reg &= ~ISL38XX_CTRL_STAT_RESET;
+       reg &= ~ISL38XX_CTRL_STAT_RAMBOOT;
+       writel(reg, device_base + ISL38XX_CTRL_STAT_REG);
+       wmb();
+       udelay(ISL38XX_WRITEIO_DELAY);
+
+       /* set the Reset bit without reading the register ! */
+       reg |= ISL38XX_CTRL_STAT_RESET;
+       writel(reg, device_base + ISL38XX_CTRL_STAT_REG);
+       wmb();
+       udelay(ISL38XX_WRITEIO_DELAY);
+
+       /* clear the Reset bit */
+       reg &= ~ISL38XX_CTRL_STAT_RESET;
+       writel(reg, device_base + ISL38XX_CTRL_STAT_REG);
+       wmb();
+
+       /* wait a while for the device to reboot */
+       mdelay(50);
+
+       {
+               const struct firmware *fw_entry = NULL;
+               long fw_len;
+               const u32 *fw_ptr;
+
+               rc = request_firmware(&fw_entry, priv->firmware, PRISM_FW_PDEV);
+               if (rc) {
+                       printk(KERN_ERR
+                              "%s: request_firmware() failed for '%s'\n",
+                              "prism54", priv->firmware);
+                       return rc;
+               }
+               /* prepare the Direct Memory Base register */
+               reg = ISL38XX_DEV_FIRMWARE_ADDRES;
+
+               fw_ptr = (u32 *) fw_entry->data;
+               fw_len = fw_entry->size;
+
+               if (fw_len % 4) {
+                       printk(KERN_ERR
+                              "%s: firmware '%s' size is not multiple of 32bit, aborting!\n",
+                              "prism54", priv->firmware);
+                       release_firmware(fw_entry);
+                       return EILSEQ; /* Illegal byte sequence  */;
+               }
+
+               while (fw_len > 0) {
+                       long _fw_len =
+                           (fw_len >
+                            ISL38XX_MEMORY_WINDOW_SIZE) ?
+                           ISL38XX_MEMORY_WINDOW_SIZE : fw_len;
+                       u32 *dev_fw_ptr = device_base + ISL38XX_DIRECT_MEM_WIN;
+
+                       /* set the cards base address for writting the data */
+                       isl38xx_w32_flush(device_base, reg,
+                                         ISL38XX_DIR_MEM_BASE_REG);
+                       wmb();  /* be paranoid */
+
+                       /* increment the write address for next iteration */
+                       reg += _fw_len;
+                       fw_len -= _fw_len;
+
+                       /* write the data to the Direct Memory Window 32bit-wise */
+                       /* memcpy_toio() doesn't guarantee 32bit writes :-| */
+                       while (_fw_len > 0) {
+                               /* use non-swapping writel() */
+                               __raw_writel(*fw_ptr, dev_fw_ptr);
+                               fw_ptr++, dev_fw_ptr++;
+                               _fw_len -= 4;
+                       }
+
+                       /* flush PCI posting */
+                       (void) readl(device_base + ISL38XX_PCI_POSTING_FLUSH);
+                       wmb();  /* be paranoid again */
+
+                       BUG_ON(_fw_len != 0);
+               }
+
+               BUG_ON(fw_len != 0);
+
+               release_firmware(fw_entry);
+       }
+
+       /* now reset the device
+        * clear the Reset & ClkRun bit, set the RAMBoot bit */
+       reg = readl(device_base + ISL38XX_CTRL_STAT_REG);
+       reg &= ~ISL38XX_CTRL_STAT_CLKRUN;
+       reg &= ~ISL38XX_CTRL_STAT_RESET;
+       reg |= ISL38XX_CTRL_STAT_RAMBOOT;
+       isl38xx_w32_flush(device_base, reg, ISL38XX_CTRL_STAT_REG);
+       wmb();
+       udelay(ISL38XX_WRITEIO_DELAY);
+
+       /* set the reset bit latches the host override and RAMBoot bits
+        * into the device for operation when the reset bit is reset */
+       reg |= ISL38XX_CTRL_STAT_RESET;
+       writel(reg, device_base + ISL38XX_CTRL_STAT_REG);
+       /* don't do flush PCI posting here! */
+       wmb();
+       udelay(ISL38XX_WRITEIO_DELAY);
+
+       /* clear the reset bit should start the whole circus */
+       reg &= ~ISL38XX_CTRL_STAT_RESET;
+       writel(reg, device_base + ISL38XX_CTRL_STAT_REG);
+       /* don't do flush PCI posting here! */
+       wmb();
+       udelay(ISL38XX_WRITEIO_DELAY);
+
+       return 0;
+}
+
 /******************************************************************************
     Device Interrupt Handler
 ******************************************************************************/
@@ -68,21 +186,22 @@ islpci_interrupt(int irq, void *config, struct pt_regs *regs)
        void *device = priv->device_base;
        int powerstate = ISL38XX_PSM_POWERSAVE_STATE;
 
+       /* lock the interrupt handler */
+       spin_lock(&priv->slock);
+
        /* received an interrupt request on a shared IRQ line
         * first check whether the device is in sleep mode */
        reg = readl(device + ISL38XX_CTRL_STAT_REG);
        if (reg & ISL38XX_CTRL_STAT_SLEEPMODE)
                /* device is in sleep mode, IRQ was generated by someone else */
        {
-               printk(KERN_DEBUG "Assuming someone else called the IRQ\n");
+#if VERBOSE > SHOW_ERROR_MESSAGES
+               DEBUG(SHOW_TRACING, "Assuming someone else called the IRQ\n");
+#endif
+               spin_unlock(&priv->slock);
                return IRQ_NONE;
        }
 
-       if (islpci_get_state(priv) != PRV_STATE_SLEEP)
-               powerstate = ISL38XX_PSM_ACTIVE_STATE;
-
-       /* lock the interrupt handler */
-       spin_lock(&priv->slock);
 
        /* check whether there is any source of interrupt on the device */
        reg = readl(device + ISL38XX_INT_IDENT_REG);
@@ -93,6 +212,9 @@ islpci_interrupt(int irq, void *config, struct pt_regs *regs)
        reg &= ISL38XX_INT_SOURCES;
 
        if (reg != 0) {
+               if (islpci_get_state(priv) != PRV_STATE_SLEEP)
+                       powerstate = ISL38XX_PSM_ACTIVE_STATE;
+
                /* reset the request bits in the Identification register */
                isl38xx_w32_flush(device, reg, ISL38XX_INT_ACK_REG);
 
@@ -220,6 +342,12 @@ islpci_interrupt(int irq, void *config, struct pt_regs *regs)
                        isl38xx_handle_wakeup(priv->control_block,
                                              &powerstate, priv->device_base);
                }
+       } else {
+#if VERBOSE > SHOW_ERROR_MESSAGES
+               DEBUG(SHOW_TRACING, "Assuming someone else called the IRQ\n");
+#endif
+               spin_unlock(&priv->slock);
+               return IRQ_NONE;
        }
 
        /* sleep -> ready */
@@ -274,7 +402,7 @@ islpci_close(struct net_device *ndev)
        return prism54_bring_down(priv);
 }
 
-int
+static int
 prism54_bring_down(islpci_private *priv)
 {
        void *device_base = priv->device_base;
@@ -324,14 +452,7 @@ islpci_upload_fw(islpci_private *priv)
 
        printk(KERN_DEBUG "%s: uploading firmware...\n", priv->ndev->name);
 
-       rc = isl38xx_upload_firmware(priv->firmware,
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,75))
-               &priv->pdev->dev,
-#else
-               pci_name(priv->pdev),
-#endif
-               priv->device_base,
-               priv->device_host_address);
+       rc = isl_upload_firmware(priv);
        if (rc) {
                /* error uploading the firmware */
                printk(KERN_ERR "%s: could not upload firmware ('%s')\n",
@@ -357,15 +478,8 @@ islpci_reset_if(islpci_private *priv)
        int result = -ETIME;
        int count;
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-       /* This is 2.6 specific, nicer, shorter, but not in 2.4 yet */
        DEFINE_WAIT(wait);
        prepare_to_wait(&priv->reset_done, &wait, TASK_UNINTERRUPTIBLE);
-#else
-       DECLARE_WAITQUEUE(wait, current);
-       set_current_state(TASK_UNINTERRUPTIBLE);
-       add_wait_queue(&priv->reset_done, &wait);
-#endif
        
        /* now the last step is to reset the interface */
        isl38xx_interface_reset(priv->device_base, priv->device_host_address);
@@ -390,13 +504,7 @@ islpci_reset_if(islpci_private *priv)
 
        }
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-       /* 2.6 specific too */
        finish_wait(&priv->reset_done, &wait);
-#else
-       remove_wait_queue(&priv->reset_done, &wait);
-       set_current_state(TASK_RUNNING);
-#endif
 
        if(result)
                return result;
@@ -410,7 +518,9 @@ islpci_reset_if(islpci_private *priv)
         * the IRQ line until we know for sure the reset went through */
        isl38xx_enable_common_interrupts(priv->device_base);
 
-       prism54_mib_init_work(priv);
+       down_write(&priv->mib_sem);
+       mgt_commit(priv);
+       up_write(&priv->mib_sem);
 
        islpci_set_state(priv, PRV_STATE_READY);
 
@@ -448,9 +558,9 @@ islpci_reset(islpci_private *priv, int reload_firmware)
        /* reset the mgmt receive queue */
        for (counter = 0; counter < ISL38XX_CB_MGMT_QSIZE; counter++) {
                isl38xx_fragment *frag = &cb->rx_data_mgmt[counter];
-               frag->size = MGMT_FRAME_SIZE;
+               frag->size = cpu_to_le16(MGMT_FRAME_SIZE);
                frag->flags = 0;
-               frag->address = priv->mgmt_rx[counter].pci_addr;
+               frag->address = cpu_to_le32(priv->mgmt_rx[counter].pci_addr);
        }
 
        for (counter = 0; counter < ISL38XX_CB_RX_QSIZE; counter++) {
@@ -503,7 +613,7 @@ islpci_statistics(struct net_device *ndev)
 /******************************************************************************
     Network device configuration functions
 ******************************************************************************/
-int
+static int
 islpci_alloc_memory(islpci_private *priv)
 {
        int counter;
@@ -580,6 +690,7 @@ islpci_alloc_memory(islpci_private *priv)
                        skb = NULL;
                        goto out_free;
                }
+               skb_reserve(skb, (4 - (long) skb->data) & 0x03);
                /* add the new allocated sk_buff to the buffer array */
                priv->data_low_rx[counter] = skb;
 
@@ -614,7 +725,7 @@ islpci_free_memory(islpci_private *priv)
 
        if (priv->device_base)
                iounmap(priv->device_base);
-       priv->device_base = 0;
+       priv->device_base = NULL;
 
        /* free consistent DMA area... */
        if (priv->driver_mem_address)
@@ -623,10 +734,10 @@ islpci_free_memory(islpci_private *priv)
                                    priv->device_host_address);
 
        /* clear some dangling pointers */
-       priv->driver_mem_address = 0;
+       priv->driver_mem_address = NULL;
        priv->device_host_address = 0;
        priv->device_psm_buffer = 0;
-       priv->control_block = 0;
+       priv->control_block = NULL;
 
         /* clean up mgmt rx buffers */
         for (counter = 0; counter < ISL38XX_CB_MGMT_QSIZE; counter++) {
@@ -652,7 +763,7 @@ islpci_free_memory(islpci_private *priv)
 
                if (priv->data_low_rx[counter])
                        dev_kfree_skb(priv->data_low_rx[counter]);
-               priv->data_low_rx[counter] = 0;
+               priv->data_low_rx[counter] = NULL;
        }
 
        /* Free the acces control list and the WPA list */
@@ -754,14 +865,14 @@ islpci_setup(struct pci_dev *pdev)
 
        /* select the firmware file depending on the device id */
        switch (pdev->device) {
-       case PCIDEVICE_ISL3890:
-       case PCIDEVICE_3COM6001:
-               strcpy(priv->firmware, ISL3890_IMAGE_FILE);
-               break;
-       case PCIDEVICE_ISL3877:
+       case 0x3877:
                strcpy(priv->firmware, ISL3877_IMAGE_FILE);
                break;
 
+       case 0x3886:
+               strcpy(priv->firmware, ISL3886_IMAGE_FILE);
+               break;
+
        default:
                strcpy(priv->firmware, ISL3890_IMAGE_FILE);
                break;
@@ -778,9 +889,9 @@ islpci_setup(struct pci_dev *pdev)
       do_islpci_free_memory:
        islpci_free_memory(priv);
       do_free_netdev:
-       pci_set_drvdata(pdev, 0);
+       pci_set_drvdata(pdev, NULL);
        free_netdev(ndev);
-       priv = 0;
+       priv = NULL;
        return NULL;
 }