static int
ath_pci_detach(device_t dev)
{
struct ath_pci_softc *psc = device_get_softc(dev);
struct ath_softc *sc = &psc->sc_sc;
/* check if device was removed */
sc->sc_invalid = !bus_child_present(dev);
/*
* Do a config read to clear pre-existing pci error status.
*/
(void) pci_read_config(dev, PCIR_COMMAND, 4);
ath_detach(sc);
bus_generic_detach(dev);
bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih);
bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq);
bus_dma_tag_destroy(sc->sc_dmat);
bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR, psc->sc_sr);
ATH_LOCK_DESTROY(sc);
return (0);
}
static int
ath_ahb_detach(device_t dev)
{
struct ath_ahb_softc *psc = device_get_softc(dev);
struct ath_softc *sc = &psc->sc_sc;
/* check if device was removed */
sc->sc_invalid = !bus_child_present(dev);
ath_detach(sc);
bus_generic_detach(dev);
bus_teardown_intr(dev, psc->sc_irq, psc->sc_ih);
bus_release_resource(dev, SYS_RES_IRQ, 0, psc->sc_irq);
bus_dma_tag_destroy(sc->sc_dmat);
bus_release_resource(dev, SYS_RES_MEMORY, 0, psc->sc_sr);
bus_release_resource(dev, SYS_RES_MEMORY, 0, psc->sc_eeprom);
/* XXX?! */
if (sc->sc_eepromdata)
free(sc->sc_eepromdata, M_TEMP);
ATH_LOCK_DESTROY(sc);
return (0);
}
static void
ath_pci_remove(adf_drv_handle_t hdl)
{
struct ath_softc_tgt *sc = hdl;
ath_detach((struct ath_softc_tgt *)hdl);
adf_os_free_intr(sc->sc_dev);
}
int
ath_pci_detach(struct device *self, int flags)
{
struct ath_pci_softc *psc = (struct ath_pci_softc *)self;
struct ath_softc *sc = &psc->sc_sc;
ath_detach(&psc->sc_sc, flags);
if (psc->sc_ih != NULL) {
pci_intr_disestablish(psc->sc_pc, psc->sc_ih);
psc->sc_ih = NULL;
}
if (sc->sc_ss != 0) {
bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_ss);
sc->sc_ss = 0;
}
return (0);
}
static int
exit_ath_wmac(u_int16_t wlanNum, struct ar531x_config *config)
{
struct ath_ahb_softc *sc = sclist[wlanNum];
struct net_device *dev;
u_int16_t devid;
if (sc == NULL)
return -ENODEV; /* XXX: correct return value? */
dev = sc->aps_sc.sc_dev;
ath_detach(dev);
if (dev->irq)
free_irq(dev->irq, dev);
devid = sc->aps_sc.devid;
config->tag = (void *)((unsigned long) devid);
ahb_disable_wmac(devid, wlanNum);
free_netdev(dev);
sclist[wlanNum] = NULL;
return 0;
}
int
ath_cardbus_detach(device_t self, int flags)
{
struct ath_cardbus_softc *csc = device_private(self);
struct ath_softc *sc = &csc->sc_ath;
struct cardbus_devfunc *ct = csc->sc_ct;
int rv;
#if defined(DIAGNOSTIC)
if (ct == NULL)
panic("%s: data structure lacks", device_xname(sc->sc_dev));
#endif
rv = ath_detach(sc);
if (rv)
return (rv);
pmf_device_deregister(self);
/*
* Unhook the interrupt handler.
*/
if (csc->sc_ih != NULL) {
cardbus_intr_disestablish(ct->ct_cc, ct->ct_cf, csc->sc_ih);
csc->sc_ih = NULL;
}
/*
* Release bus space and close window.
*/
Cardbus_mapreg_unmap(ct, ATH_PCI_MMBA, csc->sc_iot, csc->sc_ioh,
csc->sc_mapsize);
ATH_LOCK_DESTROY(sc);
return (0);
}
static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
void __iomem *mem;
struct ath_wiphy *aphy;
struct ath_softc *sc;
struct ieee80211_hw *hw;
u8 csz;
u16 subsysid;
u32 val;
int ret = 0;
struct ath_hw *ah;
char hw_name[64];
if (pci_enable_device(pdev))
return -EIO;
ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (ret) {
printk(KERN_ERR "ath9k: 32-bit DMA not available\n");
goto bad;
}
ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (ret) {
printk(KERN_ERR "ath9k: 32-bit DMA consistent "
"DMA enable failed\n");
goto bad;
}
/*
* Cache line size is used to size and align various
* structures used to communicate with the hardware.
*/
pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &csz);
if (csz == 0) {
/*
* Linux 2.4.18 (at least) writes the cache line size
* register as a 16-bit wide register which is wrong.
* We must have this setup properly for rx buffer
* DMA to work so force a reasonable value here if it
* comes up zero.
*/
csz = L1_CACHE_BYTES / sizeof(u32);
pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, csz);
}
/*
* The default setting of latency timer yields poor results,
* set it to the value used by other systems. It may be worth
* tweaking this setting more.
*/
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0xa8);
pci_set_master(pdev);
/*
* Disable the RETRY_TIMEOUT register (0x41) to keep
* PCI Tx retries from interfering with C3 CPU state.
*/
pci_read_config_dword(pdev, 0x40, &val);
if ((val & 0x0000ff00) != 0)
pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
ret = pci_request_region(pdev, 0, "ath9k");
if (ret) {
dev_err(&pdev->dev, "PCI memory region reserve error\n");
ret = -ENODEV;
goto bad;
}
mem = pci_iomap(pdev, 0, 0);
if (!mem) {
printk(KERN_ERR "PCI memory map error\n") ;
ret = -EIO;
goto bad1;
}
hw = ieee80211_alloc_hw(sizeof(struct ath_wiphy) +
sizeof(struct ath_softc), &ath9k_ops);
if (!hw) {
dev_err(&pdev->dev, "no memory for ieee80211_hw\n");
ret = -ENOMEM;
goto bad2;
}
SET_IEEE80211_DEV(hw, &pdev->dev);
pci_set_drvdata(pdev, hw);
aphy = hw->priv;
sc = (struct ath_softc *) (aphy + 1);
aphy->sc = sc;
aphy->hw = hw;
sc->pri_wiphy = aphy;
sc->hw = hw;
sc->dev = &pdev->dev;
sc->mem = mem;
pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &subsysid);
ret = ath_init_device(id->device, sc, subsysid, &ath_pci_bus_ops);
if (ret) {
dev_err(&pdev->dev, "failed to initialize device\n");
goto bad3;
}
/* setup interrupt service routine */
ret = request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath9k", sc);
if (ret) {
dev_err(&pdev->dev, "request_irq failed\n");
goto bad4;
}
sc->irq = pdev->irq;
ah = sc->sc_ah;
ath9k_hw_name(ah, hw_name, sizeof(hw_name));
printk(KERN_INFO
"%s: %s mem=0x%lx, irq=%d\n",
wiphy_name(hw->wiphy),
hw_name,
(unsigned long)mem, pdev->irq);
return 0;
bad4:
ath_detach(sc);
bad3:
ieee80211_free_hw(hw);
bad2:
pci_iounmap(pdev, mem);
bad1:
pci_release_region(pdev, 0);
bad:
pci_disable_device(pdev);
return ret;
}
