diff options
Diffstat (limited to 'drivers/net/wireless/prism54/islpci_dev.c')
| -rw-r--r-- | drivers/net/wireless/prism54/islpci_dev.c | 961 |
1 files changed, 0 insertions, 961 deletions
diff --git a/drivers/net/wireless/prism54/islpci_dev.c b/drivers/net/wireless/prism54/islpci_dev.c deleted file mode 100644 index 66b05363b..000000000 --- a/drivers/net/wireless/prism54/islpci_dev.c +++ /dev/null @@ -1,961 +0,0 @@ -/* - * Copyright (C) 2002 Intersil Americas Inc. - * Copyright (C) 2003 Herbert Valerio Riedel <hvr@gnu.org> - * Copyright (C) 2003 Luis R. Rodriguez <mcgrof@ruslug.rutgers.edu> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - * - */ - -#include <linux/hardirq.h> -#include <linux/module.h> -#include <linux/slab.h> - -#include <linux/netdevice.h> -#include <linux/ethtool.h> -#include <linux/pci.h> -#include <linux/sched.h> -#include <linux/etherdevice.h> -#include <linux/delay.h> -#include <linux/if_arp.h> - -#include <asm/io.h> - -#include "prismcompat.h" -#include "isl_38xx.h" -#include "isl_ioctl.h" -#include "islpci_dev.h" -#include "islpci_mgt.h" -#include "islpci_eth.h" -#include "oid_mgt.h" - -#define ISL3877_IMAGE_FILE "/*(DEBLOBBED)*/" -#define ISL3886_IMAGE_FILE "/*(DEBLOBBED)*/" -#define ISL3890_IMAGE_FILE "/*(DEBLOBBED)*/" -/*(DEBLOBBED)*/ - -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 - * OUI prefix, they can process the netdev properly. - * Of course, this is not the final/real MAC address. It doesn't - * matter, as you are suppose to be able to change it anytime via - * ndev->set_mac_address. Jean II */ -static const unsigned char dummy_mac[6] = { 0x00, 0x30, 0xB4, 0x00, 0x00, 0x00 }; - -static int -isl_upload_firmware(islpci_private *priv) -{ - u32 reg, rc; - void __iomem *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 = reject_firmware(&fw_entry, priv->firmware, PRISM_FW_PDEV); - if (rc) { - printk(KERN_ERR - "%s: reject_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 __iomem *dev_fw_ptr = device_base + ISL38XX_DIRECT_MEM_WIN; - - /* set the card's base address for writing 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); - - /* Firmware version is at offset 40 (also for "newmac") */ - printk(KERN_DEBUG "%s: firmware version: %.8s\n", - priv->ndev->name, fw_entry->data + 40); - - 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 -******************************************************************************/ - -irqreturn_t -islpci_interrupt(int irq, void *config) -{ - u32 reg; - islpci_private *priv = config; - struct net_device *ndev = priv->ndev; - void __iomem *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 */ - { -#if VERBOSE > SHOW_ERROR_MESSAGES - DEBUG(SHOW_TRACING, "Assuming someone else called the IRQ\n"); -#endif - spin_unlock(&priv->slock); - return IRQ_NONE; - } - - - /* check whether there is any source of interrupt on the device */ - reg = readl(device + ISL38XX_INT_IDENT_REG); - - /* also check the contents of the Interrupt Enable Register, because this - * will filter out interrupt sources from other devices on the same irq ! */ - reg &= readl(device + ISL38XX_INT_EN_REG); - 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); - -#if VERBOSE > SHOW_ERROR_MESSAGES - DEBUG(SHOW_FUNCTION_CALLS, - "IRQ: Identification register 0x%p 0x%x\n", device, reg); -#endif - - /* check for each bit in the register separately */ - if (reg & ISL38XX_INT_IDENT_UPDATE) { -#if VERBOSE > SHOW_ERROR_MESSAGES - /* Queue has been updated */ - DEBUG(SHOW_TRACING, "IRQ: Update flag\n"); - - DEBUG(SHOW_QUEUE_INDEXES, - "CB drv Qs: [%i][%i][%i][%i][%i][%i]\n", - le32_to_cpu(priv->control_block-> - driver_curr_frag[0]), - le32_to_cpu(priv->control_block-> - driver_curr_frag[1]), - le32_to_cpu(priv->control_block-> - driver_curr_frag[2]), - le32_to_cpu(priv->control_block-> - driver_curr_frag[3]), - le32_to_cpu(priv->control_block-> - driver_curr_frag[4]), - le32_to_cpu(priv->control_block-> - driver_curr_frag[5]) - ); - - DEBUG(SHOW_QUEUE_INDEXES, - "CB dev Qs: [%i][%i][%i][%i][%i][%i]\n", - le32_to_cpu(priv->control_block-> - device_curr_frag[0]), - le32_to_cpu(priv->control_block-> - device_curr_frag[1]), - le32_to_cpu(priv->control_block-> - device_curr_frag[2]), - le32_to_cpu(priv->control_block-> - device_curr_frag[3]), - le32_to_cpu(priv->control_block-> - device_curr_frag[4]), - le32_to_cpu(priv->control_block-> - device_curr_frag[5]) - ); -#endif - - /* cleanup the data low transmit queue */ - islpci_eth_cleanup_transmit(priv, priv->control_block); - - /* device is in active state, update the - * powerstate flag if necessary */ - powerstate = ISL38XX_PSM_ACTIVE_STATE; - - /* check all three queues in priority order - * call the PIMFOR receive function until the - * queue is empty */ - if (isl38xx_in_queue(priv->control_block, - ISL38XX_CB_RX_MGMTQ) != 0) { -#if VERBOSE > SHOW_ERROR_MESSAGES - DEBUG(SHOW_TRACING, - "Received frame in Management Queue\n"); -#endif - islpci_mgt_receive(ndev); - - islpci_mgt_cleanup_transmit(ndev); - - /* Refill slots in receive queue */ - islpci_mgmt_rx_fill(ndev); - - /* no need to trigger the device, next - islpci_mgt_transaction does it */ - } - - while (isl38xx_in_queue(priv->control_block, - ISL38XX_CB_RX_DATA_LQ) != 0) { -#if VERBOSE > SHOW_ERROR_MESSAGES - DEBUG(SHOW_TRACING, - "Received frame in Data Low Queue\n"); -#endif - islpci_eth_receive(priv); - } - - /* check whether the data transmit queues were full */ - if (priv->data_low_tx_full) { - /* check whether the transmit is not full anymore */ - if (ISL38XX_CB_TX_QSIZE - - isl38xx_in_queue(priv->control_block, - ISL38XX_CB_TX_DATA_LQ) >= - ISL38XX_MIN_QTHRESHOLD) { - /* nope, the driver is ready for more network frames */ - netif_wake_queue(priv->ndev); - - /* reset the full flag */ - priv->data_low_tx_full = 0; - } - } - } - - if (reg & ISL38XX_INT_IDENT_INIT) { - /* Device has been initialized */ -#if VERBOSE > SHOW_ERROR_MESSAGES - DEBUG(SHOW_TRACING, - "IRQ: Init flag, device initialized\n"); -#endif - wake_up(&priv->reset_done); - } - - if (reg & ISL38XX_INT_IDENT_SLEEP) { - /* Device intends to move to powersave state */ -#if VERBOSE > SHOW_ERROR_MESSAGES - DEBUG(SHOW_TRACING, "IRQ: Sleep flag\n"); -#endif - isl38xx_handle_sleep_request(priv->control_block, - &powerstate, - priv->device_base); - } - - if (reg & ISL38XX_INT_IDENT_WAKEUP) { - /* Device has been woken up to active state */ -#if VERBOSE > SHOW_ERROR_MESSAGES - DEBUG(SHOW_TRACING, "IRQ: Wakeup flag\n"); -#endif - - 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 */ - if (islpci_get_state(priv) == PRV_STATE_SLEEP - && powerstate == ISL38XX_PSM_ACTIVE_STATE) - islpci_set_state(priv, PRV_STATE_READY); - - /* !sleep -> sleep */ - if (islpci_get_state(priv) != PRV_STATE_SLEEP - && powerstate == ISL38XX_PSM_POWERSAVE_STATE) - islpci_set_state(priv, PRV_STATE_SLEEP); - - /* unlock the interrupt handler */ - spin_unlock(&priv->slock); - - return IRQ_HANDLED; -} - -/****************************************************************************** - Network Interface Control & Statistical functions -******************************************************************************/ -static int -islpci_open(struct net_device *ndev) -{ - u32 rc; - islpci_private *priv = netdev_priv(ndev); - - /* reset data structures, upload firmware and reset device */ - rc = islpci_reset(priv,1); - if (rc) { - prism54_bring_down(priv); - return rc; /* Returns informative message */ - } - - netif_start_queue(ndev); - - /* Turn off carrier if in STA or Ad-hoc mode. It will be turned on - * once the firmware receives a trap of being associated - * (GEN_OID_LINKSTATE). In other modes (AP or WDS or monitor) we - * should just leave the carrier on as its expected the firmware - * won't send us a trigger. */ - if (priv->iw_mode == IW_MODE_INFRA || priv->iw_mode == IW_MODE_ADHOC) - netif_carrier_off(ndev); - else - netif_carrier_on(ndev); - - return 0; -} - -static int -islpci_close(struct net_device *ndev) -{ - islpci_private *priv = netdev_priv(ndev); - - printk(KERN_DEBUG "%s: islpci_close ()\n", ndev->name); - - netif_stop_queue(ndev); - - return prism54_bring_down(priv); -} - -static int -prism54_bring_down(islpci_private *priv) -{ - void __iomem *device_base = priv->device_base; - u32 reg; - /* we are going to shutdown the device */ - islpci_set_state(priv, PRV_STATE_PREBOOT); - - /* disable all device interrupts in case they weren't */ - isl38xx_disable_interrupts(priv->device_base); - - /* For safety reasons, we may want to ensure that no DMA transfer is - * currently in progress by emptying the TX and RX queues. */ - - /* wait until interrupts have finished executing on other CPUs */ - synchronize_irq(priv->pdev->irq); - - reg = readl(device_base + ISL38XX_CTRL_STAT_REG); - reg &= ~(ISL38XX_CTRL_STAT_RESET | ISL38XX_CTRL_STAT_RAMBOOT); - writel(reg, device_base + ISL38XX_CTRL_STAT_REG); - wmb(); - udelay(ISL38XX_WRITEIO_DELAY); - - 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 reset */ - schedule_timeout_uninterruptible(msecs_to_jiffies(50)); - - return 0; -} - -static int -islpci_upload_fw(islpci_private *priv) -{ - islpci_state_t old_state; - u32 rc; - - old_state = islpci_set_state(priv, PRV_STATE_BOOT); - - printk(KERN_DEBUG "%s: uploading firmware...\n", priv->ndev->name); - - rc = isl_upload_firmware(priv); - if (rc) { - /* error uploading the firmware */ - printk(KERN_ERR "%s: could not upload firmware ('%s')\n", - priv->ndev->name, priv->firmware); - - islpci_set_state(priv, old_state); - return rc; - } - - printk(KERN_DEBUG "%s: firmware upload complete\n", - priv->ndev->name); - - islpci_set_state(priv, PRV_STATE_POSTBOOT); - - return 0; -} - -static int -islpci_reset_if(islpci_private *priv) -{ - long remaining; - int result = -ETIME; - int count; - - DEFINE_WAIT(wait); - prepare_to_wait(&priv->reset_done, &wait, TASK_UNINTERRUPTIBLE); - - /* now the last step is to reset the interface */ - isl38xx_interface_reset(priv->device_base, priv->device_host_address); - islpci_set_state(priv, PRV_STATE_PREINIT); - - for(count = 0; count < 2 && result; count++) { - /* The software reset acknowledge needs about 220 msec here. - * Be conservative and wait for up to one second. */ - - remaining = schedule_timeout_uninterruptible(HZ); - - if(remaining > 0) { - result = 0; - break; - } - - /* If we're here it's because our IRQ hasn't yet gone through. - * Retry a bit more... - */ - printk(KERN_ERR "%s: no 'reset complete' IRQ seen - retrying\n", - priv->ndev->name); - } - - finish_wait(&priv->reset_done, &wait); - - if (result) { - printk(KERN_ERR "%s: interface reset failure\n", priv->ndev->name); - return result; - } - - islpci_set_state(priv, PRV_STATE_INIT); - - /* Now that the device is 100% up, let's allow - * for the other interrupts -- - * NOTE: this is not *yet* true since we've only allowed the - * INIT interrupt on the IRQ line. We can perhaps poll - * the IRQ line until we know for sure the reset went through */ - isl38xx_enable_common_interrupts(priv->device_base); - - down_write(&priv->mib_sem); - result = mgt_commit(priv); - if (result) { - printk(KERN_ERR "%s: interface reset failure\n", priv->ndev->name); - up_write(&priv->mib_sem); - return result; - } - up_write(&priv->mib_sem); - - islpci_set_state(priv, PRV_STATE_READY); - - printk(KERN_DEBUG "%s: interface reset complete\n", priv->ndev->name); - return 0; -} - -int -islpci_reset(islpci_private *priv, int reload_firmware) -{ - isl38xx_control_block *cb = /* volatile not needed */ - (isl38xx_control_block *) priv->control_block; - unsigned counter; - int rc; - - if (reload_firmware) - islpci_set_state(priv, PRV_STATE_PREBOOT); - else - islpci_set_state(priv, PRV_STATE_POSTBOOT); - - printk(KERN_DEBUG "%s: resetting device...\n", priv->ndev->name); - - /* disable all device interrupts in case they weren't */ - isl38xx_disable_interrupts(priv->device_base); - - /* flush all management queues */ - priv->index_mgmt_tx = 0; - priv->index_mgmt_rx = 0; - - /* clear the indexes in the frame pointer */ - for (counter = 0; counter < ISL38XX_CB_QCOUNT; counter++) { - cb->driver_curr_frag[counter] = cpu_to_le32(0); - cb->device_curr_frag[counter] = cpu_to_le32(0); - } - - /* reset the mgmt receive queue */ - for (counter = 0; counter < ISL38XX_CB_MGMT_QSIZE; counter++) { - isl38xx_fragment *frag = &cb->rx_data_mgmt[counter]; - frag->size = cpu_to_le16(MGMT_FRAME_SIZE); - frag->flags = 0; - frag->address = cpu_to_le32(priv->mgmt_rx[counter].pci_addr); - } - - for (counter = 0; counter < ISL38XX_CB_RX_QSIZE; counter++) { - cb->rx_data_low[counter].address = - cpu_to_le32((u32) priv->pci_map_rx_address[counter]); - } - - /* since the receive queues are filled with empty fragments, now we can - * set the corresponding indexes in the Control Block */ - priv->control_block->driver_curr_frag[ISL38XX_CB_RX_DATA_LQ] = - cpu_to_le32(ISL38XX_CB_RX_QSIZE); - priv->control_block->driver_curr_frag[ISL38XX_CB_RX_MGMTQ] = - cpu_to_le32(ISL38XX_CB_MGMT_QSIZE); - - /* reset the remaining real index registers and full flags */ - priv->free_data_rx = 0; - priv->free_data_tx = 0; - priv->data_low_tx_full = 0; - - if (reload_firmware) { /* Should we load the firmware ? */ - /* now that the data structures are cleaned up, upload - * firmware and reset interface */ - rc = islpci_upload_fw(priv); - if (rc) { - printk(KERN_ERR "%s: islpci_reset: failure\n", - priv->ndev->name); - return rc; - } - } - - /* finally reset interface */ - rc = islpci_reset_if(priv); - if (rc) - printk(KERN_ERR "prism54: Your card/socket may be faulty, or IRQ line too busy :(\n"); - return rc; -} - -/****************************************************************************** - Network device configuration functions -******************************************************************************/ -static int -islpci_alloc_memory(islpci_private *priv) -{ - int counter; - -#if VERBOSE > SHOW_ERROR_MESSAGES - printk(KERN_DEBUG "islpci_alloc_memory\n"); -#endif - - /* remap the PCI device base address to accessible */ - if (!(priv->device_base = - ioremap(pci_resource_start(priv->pdev, 0), - ISL38XX_PCI_MEM_SIZE))) { - /* error in remapping the PCI device memory address range */ - printk(KERN_ERR "PCI memory remapping failed\n"); - return -1; - } - - /* memory layout for consistent DMA region: - * - * Area 1: Control Block for the device interface - * Area 2: Power Save Mode Buffer for temporary frame storage. Be aware that - * the number of supported stations in the AP determines the minimal - * size of the buffer ! - */ - - /* perform the allocation */ - priv->driver_mem_address = pci_alloc_consistent(priv->pdev, - HOST_MEM_BLOCK, - &priv-> - device_host_address); - - if (!priv->driver_mem_address) { - /* error allocating the block of PCI memory */ - printk(KERN_ERR "%s: could not allocate DMA memory, aborting!", - "prism54"); - return -1; - } - - /* assign the Control Block to the first address of the allocated area */ - priv->control_block = - (isl38xx_control_block *) priv->driver_mem_address; - - /* set the Power Save Buffer pointer directly behind the CB */ - priv->device_psm_buffer = - priv->device_host_address + CONTROL_BLOCK_SIZE; - - /* make sure all buffer pointers are initialized */ - for (counter = 0; counter < ISL38XX_CB_QCOUNT; counter++) { - priv->control_block->driver_curr_frag[counter] = cpu_to_le32(0); - priv->control_block->device_curr_frag[counter] = cpu_to_le32(0); - } - - priv->index_mgmt_rx = 0; - memset(priv->mgmt_rx, 0, sizeof(priv->mgmt_rx)); - memset(priv->mgmt_tx, 0, sizeof(priv->mgmt_tx)); - - /* allocate rx queue for management frames */ - if (islpci_mgmt_rx_fill(priv->ndev) < 0) - goto out_free; - - /* now get the data rx skb's */ - memset(priv->data_low_rx, 0, sizeof (priv->data_low_rx)); - memset(priv->pci_map_rx_address, 0, sizeof (priv->pci_map_rx_address)); - - for (counter = 0; counter < ISL38XX_CB_RX_QSIZE; counter++) { - struct sk_buff *skb; - - /* allocate an sk_buff for received data frames storage - * each frame on receive size consists of 1 fragment - * include any required allignment operations */ - if (!(skb = dev_alloc_skb(MAX_FRAGMENT_SIZE_RX + 2))) { - /* error allocating an sk_buff structure elements */ - printk(KERN_ERR "Error allocating skb.\n"); - 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; - - /* map the allocated skb data area to pci */ - priv->pci_map_rx_address[counter] = - pci_map_single(priv->pdev, (void *) skb->data, - MAX_FRAGMENT_SIZE_RX + 2, - PCI_DMA_FROMDEVICE); - if (!priv->pci_map_rx_address[counter]) { - /* error mapping the buffer to device - accessible memory address */ - printk(KERN_ERR "failed to map skb DMA'able\n"); - goto out_free; - } - } - - prism54_acl_init(&priv->acl); - prism54_wpa_bss_ie_init(priv); - if (mgt_init(priv)) - goto out_free; - - return 0; - out_free: - islpci_free_memory(priv); - return -1; -} - -int -islpci_free_memory(islpci_private *priv) -{ - int counter; - - if (priv->device_base) - iounmap(priv->device_base); - priv->device_base = NULL; - - /* free consistent DMA area... */ - if (priv->driver_mem_address) - pci_free_consistent(priv->pdev, HOST_MEM_BLOCK, - priv->driver_mem_address, - priv->device_host_address); - - /* clear some dangling pointers */ - priv->driver_mem_address = NULL; - priv->device_host_address = 0; - priv->device_psm_buffer = 0; - priv->control_block = NULL; - - /* clean up mgmt rx buffers */ - for (counter = 0; counter < ISL38XX_CB_MGMT_QSIZE; counter++) { - struct islpci_membuf *buf = &priv->mgmt_rx[counter]; - if (buf->pci_addr) - pci_unmap_single(priv->pdev, buf->pci_addr, - buf->size, PCI_DMA_FROMDEVICE); - buf->pci_addr = 0; - kfree(buf->mem); - buf->size = 0; - buf->mem = NULL; - } - - /* clean up data rx buffers */ - for (counter = 0; counter < ISL38XX_CB_RX_QSIZE; counter++) { - if (priv->pci_map_rx_address[counter]) - pci_unmap_single(priv->pdev, - priv->pci_map_rx_address[counter], - MAX_FRAGMENT_SIZE_RX + 2, - PCI_DMA_FROMDEVICE); - priv->pci_map_rx_address[counter] = 0; - - if (priv->data_low_rx[counter]) - dev_kfree_skb(priv->data_low_rx[counter]); - priv->data_low_rx[counter] = NULL; - } - - /* Free the access control list and the WPA list */ - prism54_acl_clean(&priv->acl); - prism54_wpa_bss_ie_clean(priv); - mgt_clean(priv); - - return 0; -} - -#if 0 -static void -islpci_set_multicast_list(struct net_device *dev) -{ - /* put device into promisc mode and let network layer handle it */ -} -#endif - -static void islpci_ethtool_get_drvinfo(struct net_device *dev, - struct ethtool_drvinfo *info) -{ - strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); - strlcpy(info->version, DRV_VERSION, sizeof(info->version)); -} - -static const struct ethtool_ops islpci_ethtool_ops = { - .get_drvinfo = islpci_ethtool_get_drvinfo, -}; - -static const struct net_device_ops islpci_netdev_ops = { - .ndo_open = islpci_open, - .ndo_stop = islpci_close, - .ndo_start_xmit = islpci_eth_transmit, - .ndo_tx_timeout = islpci_eth_tx_timeout, - .ndo_set_mac_address = prism54_set_mac_address, - .ndo_change_mtu = eth_change_mtu, - .ndo_validate_addr = eth_validate_addr, -}; - -static struct device_type wlan_type = { - .name = "wlan", -}; - -struct net_device * -islpci_setup(struct pci_dev *pdev) -{ - islpci_private *priv; - struct net_device *ndev = alloc_etherdev(sizeof (islpci_private)); - - if (!ndev) - return ndev; - - pci_set_drvdata(pdev, ndev); - SET_NETDEV_DEV(ndev, &pdev->dev); - SET_NETDEV_DEVTYPE(ndev, &wlan_type); - - /* setup the structure members */ - ndev->base_addr = pci_resource_start(pdev, 0); - ndev->irq = pdev->irq; - - /* initialize the function pointers */ - ndev->netdev_ops = &islpci_netdev_ops; - ndev->wireless_handlers = &prism54_handler_def; - ndev->ethtool_ops = &islpci_ethtool_ops; - - /* ndev->set_multicast_list = &islpci_set_multicast_list; */ - ndev->addr_len = ETH_ALEN; - /* Get a non-zero dummy MAC address for nameif. Jean II */ - memcpy(ndev->dev_addr, dummy_mac, ETH_ALEN); - - ndev->watchdog_timeo = ISLPCI_TX_TIMEOUT; - - /* allocate a private device structure to the network device */ - priv = netdev_priv(ndev); - priv->ndev = ndev; - priv->pdev = pdev; - priv->monitor_type = ARPHRD_IEEE80211; - priv->ndev->type = (priv->iw_mode == IW_MODE_MONITOR) ? - priv->monitor_type : ARPHRD_ETHER; - - /* Add pointers to enable iwspy support. */ - priv->wireless_data.spy_data = &priv->spy_data; - ndev->wireless_data = &priv->wireless_data; - - /* save the start and end address of the PCI memory area */ - ndev->mem_start = (unsigned long) priv->device_base; - ndev->mem_end = ndev->mem_start + ISL38XX_PCI_MEM_SIZE; - -#if VERBOSE > SHOW_ERROR_MESSAGES - DEBUG(SHOW_TRACING, "PCI Memory remapped to 0x%p\n", priv->device_base); -#endif - - init_waitqueue_head(&priv->reset_done); - - /* init the queue read locks, process wait counter */ - mutex_init(&priv->mgmt_lock); - priv->mgmt_received = NULL; - init_waitqueue_head(&priv->mgmt_wqueue); - mutex_init(&priv->stats_lock); - spin_lock_init(&priv->slock); - - /* init state machine with off#1 state */ - priv->state = PRV_STATE_OFF; - priv->state_off = 1; - - /* initialize workqueue's */ - INIT_WORK(&priv->stats_work, prism54_update_stats); - priv->stats_timestamp = 0; - - INIT_WORK(&priv->reset_task, islpci_do_reset_and_wake); - priv->reset_task_pending = 0; - - /* allocate various memory areas */ - if (islpci_alloc_memory(priv)) - goto do_free_netdev; - - /* select the firmware file depending on the device id */ - switch (pdev->device) { - 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; - } - - if (register_netdev(ndev)) { - DEBUG(SHOW_ERROR_MESSAGES, - "ERROR: register_netdev() failed\n"); - goto do_islpci_free_memory; - } - - return ndev; - - do_islpci_free_memory: - islpci_free_memory(priv); - do_free_netdev: - free_netdev(ndev); - priv = NULL; - return NULL; -} - -islpci_state_t -islpci_set_state(islpci_private *priv, islpci_state_t new_state) -{ - islpci_state_t old_state; - - /* lock */ - old_state = priv->state; - - /* this means either a race condition or some serious error in - * the driver code */ - switch (new_state) { - case PRV_STATE_OFF: - priv->state_off++; - default: - priv->state = new_state; - break; - - case PRV_STATE_PREBOOT: - /* there are actually many off-states, enumerated by - * state_off */ - if (old_state == PRV_STATE_OFF) - priv->state_off--; - - /* only if hw_unavailable is zero now it means we either - * were in off#1 state, or came here from - * somewhere else */ - if (!priv->state_off) - priv->state = new_state; - break; - } -#if 0 - printk(KERN_DEBUG "%s: state transition %d -> %d (off#%d)\n", - priv->ndev->name, old_state, new_state, priv->state_off); -#endif - - /* invariants */ - BUG_ON(priv->state_off < 0); - BUG_ON(priv->state_off && (priv->state != PRV_STATE_OFF)); - BUG_ON(!priv->state_off && (priv->state == PRV_STATE_OFF)); - - /* unlock */ - return old_state; -} |