[PATCH 18/23] orinoco: Handle suspend/restore in core driver

David Kilroy
2009-06-18T22:22:41Z

Each device does almost exactly the same things on suspend and resume
when upping and downing the interface. So move this logic into a common
routine.

Signed-off-by: David Kilroy <kilroyd@googlemail.com>
---
drivers/net/wireless/orinoco/airport.c | 33 +--------------
drivers/net/wireless/orinoco/main.c | 61 +++++++++++++++++++++++++---
drivers/net/wireless/orinoco/orinoco.h | 5 +-
drivers/net/wireless/orinoco/orinoco_cs.c | 44 ++------------------
drivers/net/wireless/orinoco/orinoco_pci.h | 47 +--------------------
drivers/net/wireless/orinoco/spectrum_cs.c | 41 +-----------------
6 files changed, 70 insertions(+), 161 deletions(-)

diff --git a/drivers/net/wireless/orinoco/airport.c b/drivers/net/wireless/orinoco/airport.c
index 70f1331..c60df2c 100644
--- a/drivers/net/wireless/orinoco/airport.c
+++ b/drivers/net/wireless/orinoco/airport.c
@@ -50,15 +50,7 @@ airport_suspend(struct macio_dev *mdev, pm_message_t state)
return 0;
}

- err = __orinoco_down(priv);
- if (err)
- printk(KERN_WARNING "%s: PBOOK_SLEEP_NOW: Error %d downing interface\n",
- dev->name, err);
-
- netif_device_detach(dev);
-
- priv->hw_unavailable++;
-
+ orinoco_down(priv);
orinoco_unlock(priv, &flags);

disable_irq(card->irq);
@@ -85,30 +77,11 @@ airport_resume(struct macio_dev *mdev)

enable_irq(card->irq);

- err = orinoco_reinit_firmware(priv);
- if (err) {
- printk(KERN_ERR "%s: Error %d re-initializing firmware on PBOOK_WAKE\n",
- dev->name, err);
- return 0;
- }
-
spin_lock_irqsave(&priv->lock, flags);
-
- netif_device_attach(dev);
-
- priv->hw_unavailable--;
-
- if (priv->open && (!priv->hw_unavailable)) {
- err = __orinoco_up(priv);
- if (err)
- printk(KERN_ERR "%s: Error %d restarting card on PBOOK_WAKE\n",
- dev->name, err);
- }
-
-
+ err = orinoco_up(priv);
spin_unlock_irqrestore(&priv->lock, flags);

- return 0;
+ return err;
}

static int
diff --git a/drivers/net/wireless/orinoco/main.c b/drivers/net/wireless/orinoco/main.c
index 361cf09..0727b41 100644
--- a/drivers/net/wireless/orinoco/main.c
+++ b/drivers/net/wireless/orinoco/main.c
@@ -211,6 +211,8 @@ struct orinoco_rx_data {
/********************************************************************/

static void __orinoco_set_multicast_list(struct net_device *dev);
+static int __orinoco_up(struct orinoco_private *priv);
+static int __orinoco_down(struct orinoco_private *priv);

/********************************************************************/
/* Internal helper functions */
@@ -1514,7 +1516,7 @@ static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw)
/* Internal hardware control routines */
/********************************************************************/

-int __orinoco_up(struct orinoco_private *priv)
+static int __orinoco_up(struct orinoco_private *priv)
{
struct net_device *dev = priv->ndev;
struct hermes *hw = &priv->hw;
@@ -1542,9 +1544,8 @@ int __orinoco_up(struct orinoco_private *priv)

return 0;
}
-EXPORT_SYMBOL(__orinoco_up);

-int __orinoco_down(struct orinoco_private *priv)
+static int __orinoco_down(struct orinoco_private *priv)
{
struct net_device *dev = priv->ndev;
struct hermes *hw = &priv->hw;
@@ -1574,9 +1575,8 @@ int __orinoco_down(struct orinoco_private *priv)

return 0;
}
-EXPORT_SYMBOL(__orinoco_down);

-int orinoco_reinit_firmware(struct orinoco_private *priv)
+static int orinoco_reinit_firmware(struct orinoco_private *priv)
{
struct hermes *hw = &priv->hw;
int err;
@@ -1592,7 +1592,6 @@ int orinoco_reinit_firmware(struct orinoco_private *priv)

return err;
}
-EXPORT_SYMBOL(orinoco_reinit_firmware);

int __orinoco_program_rids(struct net_device *dev)
{
@@ -2389,6 +2388,56 @@ void free_orinocodev(struct orinoco_private *priv)
}
EXPORT_SYMBOL(free_orinocodev);

+int orinoco_up(struct orinoco_private *priv)
+{
+ struct net_device *dev = priv->ndev;
+ unsigned long flags;
+ int err;
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ err = orinoco_reinit_firmware(priv);
+ if (err) {
+ printk(KERN_ERR "%s: Error %d re-initializing firmware\n",
+ dev->name, err);
+ goto exit;
+ }
+
+ netif_device_attach(dev);
+ priv->hw_unavailable--;
+
+ if (priv->open && !priv->hw_unavailable) {
+ err = __orinoco_up(priv);
+ if (err)
+ printk(KERN_ERR "%s: Error %d restarting card\n",
+ dev->name, err);
+ }
+
+exit:
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return 0;
+}
+EXPORT_SYMBOL(orinoco_up);
+
+void orinoco_down(struct orinoco_private *priv)
+{
+ struct net_device *dev = priv->ndev;
+ unsigned long flags;
+ int err;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ err = __orinoco_down(priv);
+ if (err)
+ printk(KERN_WARNING "%s: Error %d downing interface\n",
+ dev->name, err);
+
+ netif_device_detach(dev);
+ priv->hw_unavailable++;
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+EXPORT_SYMBOL(orinoco_down);
+
static void orinoco_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
diff --git a/drivers/net/wireless/orinoco/orinoco.h b/drivers/net/wireless/orinoco/orinoco.h
index 45aa616..4ee85f8 100644
--- a/drivers/net/wireless/orinoco/orinoco.h
+++ b/drivers/net/wireless/orinoco/orinoco.h
@@ -197,9 +197,8 @@ extern int orinoco_if_add(struct orinoco_private *priv,
unsigned long base_addr,
unsigned int irq);
extern void orinoco_if_del(struct orinoco_private *priv);
-extern int __orinoco_up(struct orinoco_private *priv);
-extern int __orinoco_down(struct orinoco_private *priv);
-extern int orinoco_reinit_firmware(struct orinoco_private *priv);
+extern int orinoco_up(struct orinoco_private *priv);
+extern void orinoco_down(struct orinoco_private *priv);
extern irqreturn_t orinoco_interrupt(int irq, void *dev_id);

/********************************************************************/
diff --git a/drivers/net/wireless/orinoco/orinoco_cs.c b/drivers/net/wireless/orinoco/orinoco_cs.c
index 4c29d36..38c1c9d 100644
--- a/drivers/net/wireless/orinoco/orinoco_cs.c
+++ b/drivers/net/wireless/orinoco/orinoco_cs.c
@@ -349,26 +349,12 @@ static int orinoco_cs_suspend(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
struct orinoco_pccard *card = priv->card;
- struct net_device *dev = priv->ndev;
- int err = 0;
- unsigned long flags;

/* This is probably racy, but I can't think of
a better way, short of rewriting the PCMCIA
layer to not suck :-( */
- if (!test_bit(0, &card->hard_reset_in_progress)) {
- spin_lock_irqsave(&priv->lock, flags);
-
- err = __orinoco_down(priv);
- if (err)
- printk(KERN_WARNING "%s: Error %d downing interface\n",
- dev->name, err);
-
- netif_device_detach(dev);
- priv->hw_unavailable++;
-
- spin_unlock_irqrestore(&priv->lock, flags);
- }
+ if (!test_bit(0, &card->hard_reset_in_progress))
+ orinoco_down(priv);

return 0;
}
@@ -377,32 +363,10 @@ static int orinoco_cs_resume(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
struct orinoco_pccard *card = priv->card;
- struct net_device *dev = priv->ndev;
int err = 0;
- unsigned long flags;

- if (!test_bit(0, &card->hard_reset_in_progress)) {
- err = orinoco_reinit_firmware(priv);
- if (err) {
- printk(KERN_ERR "%s: Error %d re-initializing firmware\n",
- dev->name, err);
- return -EIO;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
- netif_device_attach(dev);
- priv->hw_unavailable--;
-
- if (priv->open && !priv->hw_unavailable) {
- err = __orinoco_up(priv);
- if (err)
- printk(KERN_ERR "%s: Error %d restarting card\n",
- dev->name, err);
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
- }
+ if (!test_bit(0, &card->hard_reset_in_progress))
+ err = orinoco_up(priv);

return err;
}
diff --git a/drivers/net/wireless/orinoco/orinoco_pci.h b/drivers/net/wireless/orinoco/orinoco_pci.h
index 22aa630..ea7231a 100644
--- a/drivers/net/wireless/orinoco/orinoco_pci.h
+++ b/drivers/net/wireless/orinoco/orinoco_pci.h
@@ -22,28 +22,8 @@ struct orinoco_pci_card {
static int orinoco_pci_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct orinoco_private *priv = pci_get_drvdata(pdev);
- struct net_device *dev = priv->ndev;
- unsigned long flags;
- int err;
-
- err = orinoco_lock(priv, &flags);
- if (err) {
- printk(KERN_ERR "%s: cannot lock hardware for suspend\n",
- dev->name);
- return err;
- }
-
- err = __orinoco_down(priv);
- if (err)
- printk(KERN_WARNING "%s: error %d bringing interface down "
- "for suspend\n", dev->name, err);
-
- netif_device_detach(dev);
-
- priv->hw_unavailable++;
-
- orinoco_unlock(priv, &flags);

+ orinoco_down(priv);
free_irq(pdev->irq, priv);
pci_save_state(pdev);
pci_disable_device(pdev);
@@ -56,7 +36,6 @@ static int orinoco_pci_resume(struct pci_dev *pdev)
{
struct orinoco_private *priv = pci_get_drvdata(pdev);
struct net_device *dev = priv->ndev;
- unsigned long flags;
int err;

pci_set_power_state(pdev, 0);
@@ -77,29 +56,9 @@ static int orinoco_pci_resume(struct pci_dev *pdev)
return -EBUSY;
}

- err = orinoco_reinit_firmware(priv);
- if (err) {
- printk(KERN_ERR "%s: error %d re-initializing firmware "
- "on resume\n", dev->name, err);
- return err;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
- netif_device_attach(dev);
+ err = orinoco_up(priv);

- priv->hw_unavailable--;
-
- if (priv->open && (!priv->hw_unavailable)) {
- err = __orinoco_up(priv);
- if (err)
- printk(KERN_ERR "%s: Error %d restarting card on resume\n",
- dev->name, err);
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return 0;
+ return err;
}
#else
#define orinoco_pci_suspend NULL
diff --git a/drivers/net/wireless/orinoco/spectrum_cs.c b/drivers/net/wireless/orinoco/spectrum_cs.c
index 7b4a7e4..c361310 100644
--- a/drivers/net/wireless/orinoco/spectrum_cs.c
+++ b/drivers/net/wireless/orinoco/spectrum_cs.c
@@ -421,22 +421,10 @@ static int
spectrum_cs_suspend(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
- struct net_device *dev = priv->ndev;
- unsigned long flags;
int err = 0;

/* Mark the device as stopped, to block IO until later */
- spin_lock_irqsave(&priv->lock, flags);
-
- err = __orinoco_down(priv);
- if (err)
- printk(KERN_WARNING "%s: Error %d downing interface\n",
- dev->name, err);
-
- netif_device_detach(dev);
- priv->hw_unavailable++;
-
- spin_unlock_irqrestore(&priv->lock, flags);
+ orinoco_down(priv);

return err;
}
@@ -445,32 +433,9 @@ static int
spectrum_cs_resume(struct pcmcia_device *link)
{
struct orinoco_private *priv = link->priv;
- struct net_device *dev = priv->ndev;
- unsigned long flags;
- int err;
-
- err = orinoco_reinit_firmware(priv);
- if (err) {
- printk(KERN_ERR "%s: Error %d re-initializing firmware\n",
- dev->name, err);
- return -EIO;
- }
+ int err = orinoco_up(priv);

- spin_lock_irqsave(&priv->lock, flags);
-
- netif_device_attach(dev);
- priv->hw_unavailable--;
-
- if (priv->open && !priv->hw_unavailable) {
- err = __orinoco_up(priv);
- if (err)
- printk(KERN_ERR "%s: Error %d restarting card\n",
- dev->name, err);
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return 0;
+ return err;
}

--
1.6.0.6