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Commit 3cc7772c authored by Brian Cavagnolo's avatar Brian Cavagnolo Committed by John W. Linville
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mwl8k: factor out firmware loading and hw init code 

This is in preparation for supporting different fw images for
different interface types, and for supporting asynchronous
firmware loading.

Based on a patch from Pradeep Nemavat <pnemavat@marvell.com>
and Yogesh Powar <yogeshp@marvell.com>
Signed-off-by: default avatarBrian Cavagnolo <brian@cozybit.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 41fdf097
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Inline Side-by-side
Showing with 214 additions and 131 deletions
drivers/net/wireless/mwl8k.c
View file @ 3cc7772c
......@@ -3942,73 +3942,10 @@ static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = {
};
MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table);
static int __devinit mwl8k_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
static int mwl8k_init_firmware(struct ieee80211_hw *hw)
{
static int printed_version = 0;
struct ieee80211_hw *hw;
struct mwl8k_priv *priv;
struct mwl8k_priv *priv = hw->priv;
int rc;
int i;
if (!printed_version) {
printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION);
printed_version = 1;
}
rc = pci_enable_device(pdev);
if (rc) {
printk(KERN_ERR "%s: Cannot enable new PCI device\n",
MWL8K_NAME);
return rc;
}
rc = pci_request_regions(pdev, MWL8K_NAME);
if (rc) {
printk(KERN_ERR "%s: Cannot obtain PCI resources\n",
MWL8K_NAME);
goto err_disable_device;
}
pci_set_master(pdev);
hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops);
if (hw == NULL) {
printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME);
rc = -ENOMEM;
goto err_free_reg;
}
SET_IEEE80211_DEV(hw, &pdev->dev);
pci_set_drvdata(pdev, hw);
priv = hw->priv;
priv->hw = hw;
priv->pdev = pdev;
priv->device_info = &mwl8k_info_tbl[id->driver_data];
priv->sram = pci_iomap(pdev, 0, 0x10000);
if (priv->sram == NULL) {
wiphy_err(hw->wiphy, "Cannot map device SRAM\n");
goto err_iounmap;
}
/*
* If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
* If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
*/
priv->regs = pci_iomap(pdev, 1, 0x10000);
if (priv->regs == NULL) {
priv->regs = pci_iomap(pdev, 2, 0x10000);
if (priv->regs == NULL) {
wiphy_err(hw->wiphy, "Cannot map device registers\n");
goto err_iounmap;
}
}
/* Reset firmware and hardware */
mwl8k_hw_reset(priv);
......@@ -4017,19 +3954,26 @@ static int __devinit mwl8k_probe(struct pci_dev *pdev,
rc = mwl8k_request_firmware(priv);
if (rc) {
wiphy_err(hw->wiphy, "Firmware files not found\n");
goto err_stop_firmware;
return rc;
}
/* Load firmware into hardware */
rc = mwl8k_load_firmware(hw);
if (rc) {
if (rc)
wiphy_err(hw->wiphy, "Cannot start firmware\n");
goto err_stop_firmware;
}
/* Reclaim memory once firmware is successfully loaded */
mwl8k_release_firmware(priv);
return rc;
}
/* initialize hw after successfully loading a firmware image */
static int mwl8k_probe_hw(struct ieee80211_hw *hw)
{
struct mwl8k_priv *priv = hw->priv;
int rc = 0;
int i;
if (priv->ap_fw) {
priv->rxd_ops = priv->device_info->ap_rxd_ops;
......@@ -4046,58 +3990,11 @@ static int __devinit mwl8k_probe(struct pci_dev *pdev,
priv->wmm_enabled = false;
priv->pending_tx_pkts = 0;
/*
* Extra headroom is the size of the required DMA header
* minus the size of the smallest 802.11 frame (CTS frame).
*/
hw->extra_tx_headroom =
sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts);
hw->channel_change_time = 10;
hw->queues = MWL8K_TX_QUEUES;
/* Set rssi values to dBm */
hw->flags |= IEEE80211_HW_SIGNAL_DBM;
hw->vif_data_size = sizeof(struct mwl8k_vif);
hw->sta_data_size = sizeof(struct mwl8k_sta);
priv->macids_used = 0;
INIT_LIST_HEAD(&priv->vif_list);
/* Set default radio state and preamble */
priv->radio_on = 0;
priv->radio_short_preamble = 0;
/* Finalize join worker */
INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker);
/* TX reclaim and RX tasklets. */
tasklet_init(&priv->poll_tx_task, mwl8k_tx_poll, (unsigned long)hw);
tasklet_disable(&priv->poll_tx_task);
tasklet_init(&priv->poll_rx_task, mwl8k_rx_poll, (unsigned long)hw);
tasklet_disable(&priv->poll_rx_task);
/* Power management cookie */
priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma);
if (priv->cookie == NULL)
goto err_stop_firmware;
rc = mwl8k_rxq_init(hw, 0);
if (rc)
goto err_free_cookie;
goto err_stop_firmware;
rxq_refill(hw, 0, INT_MAX);
mutex_init(&priv->fw_mutex);
priv->fw_mutex_owner = NULL;
priv->fw_mutex_depth = 0;
priv->hostcmd_wait = NULL;
spin_lock_init(&priv->tx_lock);
priv->tx_wait = NULL;
for (i = 0; i < MWL8K_TX_QUEUES; i++) {
rc = mwl8k_txq_init(hw, i);
if (rc)
......@@ -4137,13 +4034,6 @@ static int __devinit mwl8k_probe(struct pci_dev *pdev,
goto err_free_irq;
}
hw->wiphy->interface_modes = 0;
if (priv->ap_macids_supported)
hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP);
if (priv->sta_macids_supported)
hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION);
/* Turn radio off */
rc = mwl8k_cmd_radio_disable(hw);
if (rc) {
......@@ -4162,12 +4052,6 @@ static int __devinit mwl8k_probe(struct pci_dev *pdev,
iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
free_irq(priv->pdev->irq, hw);
rc = ieee80211_register_hw(hw);
if (rc) {
wiphy_err(hw->wiphy, "Cannot register device\n");
goto err_free_queues;
}
wiphy_info(hw->wiphy, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
priv->device_info->part_name,
priv->hw_rev, hw->wiphy->perm_addr,
......@@ -4186,14 +4070,213 @@ static int __devinit mwl8k_probe(struct pci_dev *pdev,
mwl8k_txq_deinit(hw, i);
mwl8k_rxq_deinit(hw, 0);
err_stop_firmware:
mwl8k_hw_reset(priv);
return rc;
}
/*
* invoke mwl8k_reload_firmware to change the firmware image after the device
* has already been registered
*/
static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image)
{
int i, rc = 0;
struct mwl8k_priv *priv = hw->priv;
mwl8k_stop(hw);
mwl8k_rxq_deinit(hw, 0);
for (i = 0; i < MWL8K_TX_QUEUES; i++)
mwl8k_txq_deinit(hw, i);
rc = mwl8k_init_firmware(hw, fw_image);
if (rc)
goto fail;
rc = mwl8k_probe_hw(hw);
if (rc)
goto fail;
rc = mwl8k_start(hw);
if (rc)
goto fail;
rc = mwl8k_config(hw, ~0);
if (rc)
goto fail;
for (i = 0; i < MWL8K_TX_QUEUES; i++) {
rc = mwl8k_conf_tx(hw, i, &priv->wmm_params[i]);
if (rc)
goto fail;
}
return rc;
fail:
printk(KERN_WARNING "mwl8k: Failed to reload firmware image.\n");
return rc;
}
static int mwl8k_firmware_load_success(struct mwl8k_priv *priv)
{
struct ieee80211_hw *hw = priv->hw;
int i, rc;
/*
* Extra headroom is the size of the required DMA header
* minus the size of the smallest 802.11 frame (CTS frame).
*/
hw->extra_tx_headroom =
sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts);
hw->channel_change_time = 10;
hw->queues = MWL8K_TX_QUEUES;
/* Set rssi values to dBm */
hw->flags |= IEEE80211_HW_SIGNAL_DBM;
hw->vif_data_size = sizeof(struct mwl8k_vif);
hw->sta_data_size = sizeof(struct mwl8k_sta);
priv->macids_used = 0;
INIT_LIST_HEAD(&priv->vif_list);
/* Set default radio state and preamble */
priv->radio_on = 0;
priv->radio_short_preamble = 0;
/* Finalize join worker */
INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker);
/* TX reclaim and RX tasklets. */
tasklet_init(&priv->poll_tx_task, mwl8k_tx_poll, (unsigned long)hw);
tasklet_disable(&priv->poll_tx_task);
tasklet_init(&priv->poll_rx_task, mwl8k_rx_poll, (unsigned long)hw);
tasklet_disable(&priv->poll_rx_task);
/* Power management cookie */
priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma);
if (priv->cookie == NULL)
return -ENOMEM;
mutex_init(&priv->fw_mutex);
priv->fw_mutex_owner = NULL;
priv->fw_mutex_depth = 0;
priv->hostcmd_wait = NULL;
spin_lock_init(&priv->tx_lock);
priv->tx_wait = NULL;
rc = mwl8k_probe_hw(hw);
if (rc)
goto err_free_cookie;
hw->wiphy->interface_modes = 0;
if (priv->ap_macids_supported || priv->device_info->fw_image_ap)
hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP);
if (priv->sta_macids_supported || priv->device_info->fw_image_sta)
hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION);
rc = ieee80211_register_hw(hw);
if (rc) {
wiphy_err(hw->wiphy, "Cannot register device\n");
goto err_unprobe_hw;
}
return 0;
err_unprobe_hw:
for (i = 0; i < MWL8K_TX_QUEUES; i++)
mwl8k_txq_deinit(hw, i);
mwl8k_rxq_deinit(hw, 0);
err_free_cookie:
if (priv->cookie != NULL)
pci_free_consistent(priv->pdev, 4,
priv->cookie, priv->cookie_dma);
return rc;
}
static int __devinit mwl8k_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
static int printed_version;
struct ieee80211_hw *hw;
struct mwl8k_priv *priv;
int rc;
if (!printed_version) {
printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION);
printed_version = 1;
}
rc = pci_enable_device(pdev);
if (rc) {
printk(KERN_ERR "%s: Cannot enable new PCI device\n",
MWL8K_NAME);
return rc;
}
rc = pci_request_regions(pdev, MWL8K_NAME);
if (rc) {
printk(KERN_ERR "%s: Cannot obtain PCI resources\n",
MWL8K_NAME);
goto err_disable_device;
}
pci_set_master(pdev);
hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops);
if (hw == NULL) {
printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME);
rc = -ENOMEM;
goto err_free_reg;
}
SET_IEEE80211_DEV(hw, &pdev->dev);
pci_set_drvdata(pdev, hw);
priv = hw->priv;
priv->hw = hw;
priv->pdev = pdev;
priv->device_info = &mwl8k_info_tbl[id->driver_data];
priv->sram = pci_iomap(pdev, 0, 0x10000);
if (priv->sram == NULL) {
wiphy_err(hw->wiphy, "Cannot map device SRAM\n");
goto err_iounmap;
}
/*
* If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
* If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
*/
priv->regs = pci_iomap(pdev, 1, 0x10000);
if (priv->regs == NULL) {
priv->regs = pci_iomap(pdev, 2, 0x10000);
if (priv->regs == NULL) {
wiphy_err(hw->wiphy, "Cannot map device registers\n");
goto err_iounmap;
}
}
rc = mwl8k_init_firmware(hw);
if (rc)
goto err_stop_firmware;
rc = mwl8k_firmware_load_success(priv);
if (!rc)
return rc;
err_stop_firmware:
mwl8k_hw_reset(priv);
mwl8k_release_firmware(priv);
err_iounmap:
if (priv->regs != NULL)
......
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