+++ /dev/null
-From 957a60be8a6b55da588df12e160ac53e3b36238e Mon Sep 17 00:00:00 2001
-From: Gabor Juhos <juhosg@openwrt.org>
-Date: Fri, 2 Jan 2009 16:10:25 +0100
-Subject: [RFC 05/12] ath9k: move PCI code into separate file
-
-Convert 'struct pci_dev' to 'struct device' to make it usable on the AHB
-bus as well.
-
-Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
-Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
----
- drivers/net/wireless/ath9k/Makefile | 1 +
- drivers/net/wireless/ath9k/core.h | 16 ++
- drivers/net/wireless/ath9k/main.c | 368 ++---------------------------------
- drivers/net/wireless/ath9k/pci.c | 357 +++++++++++++++++++++++++++++++++
- 4 files changed, 395 insertions(+), 347 deletions(-)
-
---- a/drivers/net/wireless/ath9k/Makefile
-+++ b/drivers/net/wireless/ath9k/Makefile
-@@ -11,6 +11,7 @@ ath9k-y += hw.o \
- xmit.o \
- rc.o
-
-+ath9k-$(CONFIG_PCI) += pci.o
- ath9k-$(CONFIG_ATH9K_DEBUG) += debug.o
-
- obj-$(CONFIG_ATH9K) += ath9k.o
---- a/drivers/net/wireless/ath9k/core.h
-+++ b/drivers/net/wireless/ath9k/core.h
-@@ -857,4 +857,20 @@ static inline void ath_bus_cleanup(struc
- sc->bus_ops->cleanup(sc);
- }
-
-+extern struct ieee80211_ops ath9k_ops;
-+
-+irqreturn_t ath_isr(int irq, void *dev);
-+int ath_attach(u16 devid, struct ath_softc *sc);
-+void ath_detach(struct ath_softc *sc);
-+const char *ath_mac_bb_name(u32 mac_bb_version);
-+const char *ath_rf_name(u16 rf_version);
-+
-+#ifdef CONFIG_PCI
-+int ath_pci_init(void);
-+void ath_pci_exit(void);
-+#else
-+static inline int ath_pci_init(void) { return 0; };
-+static inline void ath_pci_exit(void) {};
-+#endif
-+
- #endif /* CORE_H */
---- a/drivers/net/wireless/ath9k/main.c
-+++ b/drivers/net/wireless/ath9k/main.c
-@@ -28,37 +28,6 @@ MODULE_DESCRIPTION("Support for Atheros
- MODULE_SUPPORTED_DEVICE("Atheros 802.11n WLAN cards");
- MODULE_LICENSE("Dual BSD/GPL");
-
--static struct pci_device_id ath_pci_id_table[] __devinitdata = {
-- { PCI_VDEVICE(ATHEROS, 0x0023) }, /* PCI */
-- { PCI_VDEVICE(ATHEROS, 0x0024) }, /* PCI-E */
-- { PCI_VDEVICE(ATHEROS, 0x0027) }, /* PCI */
-- { PCI_VDEVICE(ATHEROS, 0x0029) }, /* PCI */
-- { PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
-- { PCI_VDEVICE(ATHEROS, 0x002B) }, /* PCI-E */
-- { 0 }
--};
--
--static void ath_detach(struct ath_softc *sc);
--
--/* return bus cachesize in 4B word units */
--static void ath_pci_read_cachesize(struct ath_softc *sc, int *csz)
--{
-- u8 u8tmp;
--
-- pci_read_config_byte(sc->pdev, PCI_CACHE_LINE_SIZE, (u8 *)&u8tmp);
-- *csz = (int)u8tmp;
--
-- /*
-- * This check was put in to avoid "unplesant" consequences if
-- * the bootrom has not fully initialized all PCI devices.
-- * Sometimes the cache line size register is not set
-- */
--
-- if (*csz == 0)
-- *csz = DEFAULT_CACHELINE >> 2; /* Use the default size */
--}
--
--
- static void ath_setcurmode(struct ath_softc *sc, enum wireless_mode mode)
- {
- sc->cur_rate_table = sc->hw_rate_table[mode];
-@@ -499,7 +468,7 @@ static void ath9k_tasklet(unsigned long
- ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_imask);
- }
-
--static irqreturn_t ath_isr(int irq, void *dev)
-+irqreturn_t ath_isr(int irq, void *dev)
- {
- struct ath_softc *sc = dev;
- struct ath_hal *ah = sc->sc_ah;
-@@ -1287,7 +1256,7 @@ static int ath_start_rfkill_poll(struct
- }
- #endif /* CONFIG_RFKILL */
-
--static void ath_detach(struct ath_softc *sc)
-+void ath_detach(struct ath_softc *sc)
- {
- struct ieee80211_hw *hw = sc->hw;
- int i = 0;
-@@ -1538,7 +1507,7 @@ bad:
- return error;
- }
-
--static int ath_attach(u16 devid, struct ath_softc *sc)
-+int ath_attach(u16 devid, struct ath_softc *sc)
- {
- struct ieee80211_hw *hw = sc->hw;
- int error = 0;
-@@ -2466,7 +2435,7 @@ static int ath9k_ampdu_action(struct iee
- return ret;
- }
-
--static struct ieee80211_ops ath9k_ops = {
-+struct ieee80211_ops ath9k_ops = {
- .tx = ath9k_tx,
- .start = ath9k_start,
- .stop = ath9k_stop,
-@@ -2510,7 +2479,7 @@ static struct {
- /*
- * Return the MAC/BB name. "????" is returned if the MAC/BB is unknown.
- */
--static const char *
-+const char *
- ath_mac_bb_name(u32 mac_bb_version)
- {
- int i;
-@@ -2527,7 +2496,7 @@ ath_mac_bb_name(u32 mac_bb_version)
- /*
- * Return the RF name. "????" is returned if the RF is unknown.
- */
--static const char *
-+const char *
- ath_rf_name(u16 rf_version)
- {
- int i;
-@@ -2541,306 +2510,7 @@ ath_rf_name(u16 rf_version)
- return "????";
- }
-
--static dma_addr_t ath_pci_map_single_to_device(struct ath_softc *sc,
-- void *p, size_t size)
--{
-- return pci_map_single(sc->pdev, p, size, PCI_DMA_TODEVICE);
--}
--
--static void ath_pci_unmap_single_to_device(struct ath_softc *sc,
-- dma_addr_t da, size_t size)
--{
-- pci_unmap_single(sc->pdev, da, size, PCI_DMA_TODEVICE);
--}
--
--static dma_addr_t ath_pci_map_single_from_device(struct ath_softc *sc,
-- void *p, size_t size)
--{
-- return pci_map_single(sc->pdev, p, size, PCI_DMA_FROMDEVICE);
--}
--
--static void ath_pci_unmap_single_from_device(struct ath_softc *sc,
-- dma_addr_t da, size_t size)
--{
-- pci_unmap_single(sc->pdev, da, size, PCI_DMA_FROMDEVICE);
--}
--
--static int ath_pci_dma_mapping_error(struct ath_softc *sc, dma_addr_t da)
--{
-- return pci_dma_mapping_error(sc->pdev, da);
--}
--
--static void ath_pci_sync_single_for_cpu(struct ath_softc *sc, dma_addr_t da,
-- size_t size)
--{
-- pci_dma_sync_single_for_cpu(sc->pdev, da, size,
-- PCI_DMA_FROMDEVICE);
--}
--
--static void *ath_pci_dma_alloc(struct ath_softc *sc, size_t size,
-- dma_addr_t *pda)
--{
-- return pci_alloc_consistent(sc->pdev, size, pda);
--}
--
--static void ath_pci_dma_free(struct ath_softc *sc, size_t size,
-- void *p, dma_addr_t da)
--{
-- pci_free_consistent(sc->pdev, size, p, da);
--}
--
--static u32 ath_pci_reg_read(struct ath_hal *ah, unsigned reg)
--{
-- return ioread32(ah->ah_sh + reg);
--}
--
--static void ath_pci_reg_write(struct ath_hal *ah, unsigned reg, u32 val)
--{
-- iowrite32(val, ah->ah_sh + reg);
--}
--
--static void ath_pci_cleanup(struct ath_softc *sc)
--{
-- ath_detach(sc);
-- if (sc->pdev->irq)
-- free_irq(sc->pdev->irq, sc);
-- pci_iounmap(sc->pdev, sc->mem);
-- pci_release_region(sc->pdev, 0);
-- pci_disable_device(sc->pdev);
-- ieee80211_free_hw(sc->hw);
--}
--
--static struct ath_bus_ops ath_pci_bus_ops = {
-- .dma_map_single_to_device = ath_pci_map_single_to_device,
-- .dma_unmap_single_to_device = ath_pci_unmap_single_to_device,
-- .dma_map_single_from_device = ath_pci_map_single_from_device,
-- .dma_unmap_single_from_device = ath_pci_unmap_single_from_device,
-- .dma_map_single_to_device = ath_pci_map_single_to_device,
-- .dma_mapping_error = ath_pci_dma_mapping_error,
-- .dma_sync_single_for_cpu = ath_pci_sync_single_for_cpu,
-- .dma_alloc = ath_pci_dma_alloc,
-- .dma_free = ath_pci_dma_free,
--
-- .reg_read = ath_pci_reg_read,
-- .reg_write = ath_pci_reg_write,
--
-- .read_cachesize = ath_pci_read_cachesize,
--
-- .cleanup = ath_pci_cleanup,
--};
--
--static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
--{
-- void __iomem *mem;
-- struct ath_softc *sc;
-- struct ieee80211_hw *hw;
-- u8 csz;
-- u32 val;
-- int ret = 0;
-- struct ath_hal *ah;
--
-- if (pci_enable_device(pdev))
-- return -EIO;
--
-- ret = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
--
-- if (ret) {
-- printk(KERN_ERR "ath9k: 32-bit DMA not available\n");
-- goto bad;
-- }
--
-- ret = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
--
-- 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_softc), &ath9k_ops);
-- if (hw == NULL) {
-- printk(KERN_ERR "ath_pci: no memory for ieee80211_hw\n");
-- goto bad2;
-- }
--
-- SET_IEEE80211_DEV(hw, &pdev->dev);
-- pci_set_drvdata(pdev, hw);
--
-- sc = hw->priv;
-- sc->hw = hw;
-- sc->pdev = pdev;
-- sc->mem = mem;
-- sc->bus_ops = &ath_pci_bus_ops;
--
-- if (ath_attach(id->device, sc) != 0) {
-- ret = -ENODEV;
-- goto bad3;
-- }
--
-- /* setup interrupt service routine */
--
-- if (request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath", sc)) {
-- printk(KERN_ERR "%s: request_irq failed\n",
-- wiphy_name(hw->wiphy));
-- ret = -EIO;
-- goto bad4;
-- }
--
-- ah = sc->sc_ah;
-- printk(KERN_INFO
-- "%s: Atheros AR%s MAC/BB Rev:%x "
-- "AR%s RF Rev:%x: mem=0x%lx, irq=%d\n",
-- wiphy_name(hw->wiphy),
-- ath_mac_bb_name(ah->ah_macVersion),
-- ah->ah_macRev,
-- ath_rf_name((ah->ah_analog5GhzRev & AR_RADIO_SREV_MAJOR)),
-- ah->ah_phyRev,
-- (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;
--}
--
--static void ath_pci_remove(struct pci_dev *pdev)
--{
-- struct ieee80211_hw *hw = pci_get_drvdata(pdev);
-- struct ath_softc *sc = hw->priv;
--
-- ath_pci_cleanup(sc);
--}
--
--#ifdef CONFIG_PM
--
--static int ath_pci_suspend(struct pci_dev *pdev, pm_message_t state)
--{
-- struct ieee80211_hw *hw = pci_get_drvdata(pdev);
-- struct ath_softc *sc = hw->priv;
--
-- ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
--
--#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-- if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-- cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
--#endif
--
-- pci_save_state(pdev);
-- pci_disable_device(pdev);
-- pci_set_power_state(pdev, 3);
--
-- return 0;
--}
--
--static int ath_pci_resume(struct pci_dev *pdev)
--{
-- struct ieee80211_hw *hw = pci_get_drvdata(pdev);
-- struct ath_softc *sc = hw->priv;
-- u32 val;
-- int err;
--
-- err = pci_enable_device(pdev);
-- if (err)
-- return err;
-- pci_restore_state(pdev);
-- /*
-- * Suspend/Resume resets the PCI configuration space, so we have to
-- * re-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);
--
-- /* Enable LED */
-- ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN,
-- AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
-- ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
--
--#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-- /*
-- * check the h/w rfkill state on resume
-- * and start the rfkill poll timer
-- */
-- if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-- queue_delayed_work(sc->hw->workqueue,
-- &sc->rf_kill.rfkill_poll, 0);
--#endif
--
-- return 0;
--}
--
--#endif /* CONFIG_PM */
--
--MODULE_DEVICE_TABLE(pci, ath_pci_id_table);
--
--static struct pci_driver ath_pci_driver = {
-- .name = "ath9k",
-- .id_table = ath_pci_id_table,
-- .probe = ath_pci_probe,
-- .remove = ath_pci_remove,
--#ifdef CONFIG_PM
-- .suspend = ath_pci_suspend,
-- .resume = ath_pci_resume,
--#endif /* CONFIG_PM */
--};
--
--static int __init init_ath_pci(void)
-+static int __init ath9k_init(void)
- {
- int error;
-
-@@ -2852,26 +2522,30 @@ static int __init init_ath_pci(void)
- printk(KERN_ERR
- "Unable to register rate control algorithm: %d\n",
- error);
-- ath_rate_control_unregister();
-- return error;
-+ goto err_out;
- }
-
-- if (pci_register_driver(&ath_pci_driver) < 0) {
-+ error = ath_pci_init();
-+ if (error < 0) {
- printk(KERN_ERR
- "ath_pci: No devices found, driver not installed.\n");
-- ath_rate_control_unregister();
-- pci_unregister_driver(&ath_pci_driver);
-- return -ENODEV;
-+ error = -ENODEV;
-+ goto err_rate_unregister;
- }
-
- return 0;
-+
-+ err_rate_unregister:
-+ ath_rate_control_unregister();
-+ err_out:
-+ return error;
- }
--module_init(init_ath_pci);
-+module_init(ath9k_init);
-
--static void __exit exit_ath_pci(void)
-+static void __exit ath9k_exit(void)
- {
-+ ath_pci_exit();
- ath_rate_control_unregister();
-- pci_unregister_driver(&ath_pci_driver);
- printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
- }
--module_exit(exit_ath_pci);
-+module_exit(ath9k_exit);
---- /dev/null
-+++ b/drivers/net/wireless/ath9k/pci.c
-@@ -0,0 +1,357 @@
-+/*
-+ * Copyright (c) 2008 Atheros Communications Inc.
-+ *
-+ * Permission to use, copy, modify, and/or distribute this software for any
-+ * purpose with or without fee is hereby granted, provided that the above
-+ * copyright notice and this permission notice appear in all copies.
-+ *
-+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-+ */
-+
-+#include <linux/nl80211.h>
-+#include "core.h"
-+#include "reg.h"
-+#include "hw.h"
-+
-+static struct pci_device_id ath_pci_id_table[] __devinitdata = {
-+ { PCI_VDEVICE(ATHEROS, 0x0023) }, /* PCI */
-+ { PCI_VDEVICE(ATHEROS, 0x0024) }, /* PCI-E */
-+ { PCI_VDEVICE(ATHEROS, 0x0027) }, /* PCI */
-+ { PCI_VDEVICE(ATHEROS, 0x0029) }, /* PCI */
-+ { PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
-+ { PCI_VDEVICE(ATHEROS, 0x002B) }, /* PCI-E */
-+ { 0 }
-+};
-+
-+/* return bus cachesize in 4B word units */
-+static void ath_pci_read_cachesize(struct ath_softc *sc, int *csz)
-+{
-+ u8 u8tmp;
-+
-+ pci_read_config_byte(sc->pdev, PCI_CACHE_LINE_SIZE, (u8 *)&u8tmp);
-+ *csz = (int)u8tmp;
-+
-+ /*
-+ * This check was put in to avoid "unplesant" consequences if
-+ * the bootrom has not fully initialized all PCI devices.
-+ * Sometimes the cache line size register is not set
-+ */
-+
-+ if (*csz == 0)
-+ *csz = DEFAULT_CACHELINE >> 2; /* Use the default size */
-+}
-+
-+static dma_addr_t ath_pci_map_single_to_device(struct ath_softc *sc,
-+ void *p, size_t size)
-+{
-+ return pci_map_single(sc->pdev, p, size, PCI_DMA_TODEVICE);
-+}
-+
-+static void ath_pci_unmap_single_to_device(struct ath_softc *sc,
-+ dma_addr_t da, size_t size)
-+{
-+ pci_unmap_single(sc->pdev, da, size, PCI_DMA_TODEVICE);
-+}
-+
-+static dma_addr_t ath_pci_map_single_from_device(struct ath_softc *sc,
-+ void *p, size_t size)
-+{
-+ return pci_map_single(sc->pdev, p, size, PCI_DMA_FROMDEVICE);
-+}
-+
-+static void ath_pci_unmap_single_from_device(struct ath_softc *sc,
-+ dma_addr_t da, size_t size)
-+{
-+ pci_unmap_single(sc->pdev, da, size, PCI_DMA_FROMDEVICE);
-+}
-+
-+static int ath_pci_dma_mapping_error(struct ath_softc *sc, dma_addr_t da)
-+{
-+ return pci_dma_mapping_error(sc->pdev, da);
-+}
-+
-+static void ath_pci_sync_single_for_cpu(struct ath_softc *sc, dma_addr_t da,
-+ size_t size)
-+{
-+ pci_dma_sync_single_for_cpu(sc->pdev, da, size,
-+ PCI_DMA_FROMDEVICE);
-+}
-+
-+static void *ath_pci_dma_alloc(struct ath_softc *sc, size_t size,
-+ dma_addr_t *pda)
-+{
-+ return pci_alloc_consistent(sc->pdev, size, pda);
-+}
-+
-+static void ath_pci_dma_free(struct ath_softc *sc, size_t size,
-+ void *p, dma_addr_t da)
-+{
-+ pci_free_consistent(sc->pdev, size, p, da);
-+}
-+
-+static u32 ath_pci_reg_read(struct ath_hal *ah, unsigned reg)
-+{
-+ return ioread32(ah->ah_sh + reg);
-+}
-+
-+static void ath_pci_reg_write(struct ath_hal *ah, unsigned reg, u32 val)
-+{
-+ iowrite32(val, ah->ah_sh + reg);
-+}
-+
-+static void ath_pci_cleanup(struct ath_softc *sc)
-+{
-+ ath_detach(sc);
-+ if (sc->pdev->irq)
-+ free_irq(sc->pdev->irq, sc);
-+ pci_iounmap(sc->pdev, sc->mem);
-+ pci_release_region(sc->pdev, 0);
-+ pci_disable_device(sc->pdev);
-+ ieee80211_free_hw(sc->hw);
-+}
-+
-+static struct ath_bus_ops ath_pci_bus_ops = {
-+ .dma_map_single_to_device = ath_pci_map_single_to_device,
-+ .dma_unmap_single_to_device = ath_pci_unmap_single_to_device,
-+ .dma_map_single_from_device = ath_pci_map_single_from_device,
-+ .dma_unmap_single_from_device = ath_pci_unmap_single_from_device,
-+ .dma_map_single_to_device = ath_pci_map_single_to_device,
-+ .dma_mapping_error = ath_pci_dma_mapping_error,
-+ .dma_sync_single_for_cpu = ath_pci_sync_single_for_cpu,
-+ .dma_alloc = ath_pci_dma_alloc,
-+ .dma_free = ath_pci_dma_free,
-+
-+ .reg_read = ath_pci_reg_read,
-+ .reg_write = ath_pci_reg_write,
-+
-+ .read_cachesize = ath_pci_read_cachesize,
-+
-+ .cleanup = ath_pci_cleanup,
-+};
-+
-+static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
-+{
-+ void __iomem *mem;
-+ struct ath_softc *sc;
-+ struct ieee80211_hw *hw;
-+ u8 csz;
-+ u32 val;
-+ int ret = 0;
-+ struct ath_hal *ah;
-+
-+ if (pci_enable_device(pdev))
-+ return -EIO;
-+
-+ ret = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
-+
-+ if (ret) {
-+ printk(KERN_ERR "ath9k: 32-bit DMA not available\n");
-+ goto bad;
-+ }
-+
-+ ret = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
-+
-+ 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_softc), &ath9k_ops);
-+ if (hw == NULL) {
-+ printk(KERN_ERR "ath_pci: no memory for ieee80211_hw\n");
-+ goto bad2;
-+ }
-+
-+ SET_IEEE80211_DEV(hw, &pdev->dev);
-+ pci_set_drvdata(pdev, hw);
-+
-+ sc = hw->priv;
-+ sc->hw = hw;
-+ sc->pdev = pdev;
-+ sc->mem = mem;
-+ sc->bus_ops = &ath_pci_bus_ops;
-+
-+ if (ath_attach(id->device, sc) != 0) {
-+ ret = -ENODEV;
-+ goto bad3;
-+ }
-+
-+ /* setup interrupt service routine */
-+
-+ if (request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath", sc)) {
-+ printk(KERN_ERR "%s: request_irq failed\n",
-+ wiphy_name(hw->wiphy));
-+ ret = -EIO;
-+ goto bad4;
-+ }
-+
-+ ah = sc->sc_ah;
-+ printk(KERN_INFO
-+ "%s: Atheros AR%s MAC/BB Rev:%x "
-+ "AR%s RF Rev:%x: mem=0x%lx, irq=%d\n",
-+ wiphy_name(hw->wiphy),
-+ ath_mac_bb_name(ah->ah_macVersion),
-+ ah->ah_macRev,
-+ ath_rf_name((ah->ah_analog5GhzRev & AR_RADIO_SREV_MAJOR)),
-+ ah->ah_phyRev,
-+ (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;
-+}
-+
-+static void ath_pci_remove(struct pci_dev *pdev)
-+{
-+ struct ieee80211_hw *hw = pci_get_drvdata(pdev);
-+ struct ath_softc *sc = hw->priv;
-+
-+ ath_pci_cleanup(sc);
-+}
-+
-+#ifdef CONFIG_PM
-+
-+static int ath_pci_suspend(struct pci_dev *pdev, pm_message_t state)
-+{
-+ struct ieee80211_hw *hw = pci_get_drvdata(pdev);
-+ struct ath_softc *sc = hw->priv;
-+
-+ ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
-+
-+#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-+ if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-+ cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
-+#endif
-+
-+ pci_save_state(pdev);
-+ pci_disable_device(pdev);
-+ pci_set_power_state(pdev, 3);
-+
-+ return 0;
-+}
-+
-+static int ath_pci_resume(struct pci_dev *pdev)
-+{
-+ struct ieee80211_hw *hw = pci_get_drvdata(pdev);
-+ struct ath_softc *sc = hw->priv;
-+ u32 val;
-+ int err;
-+
-+ err = pci_enable_device(pdev);
-+ if (err)
-+ return err;
-+ pci_restore_state(pdev);
-+ /*
-+ * Suspend/Resume resets the PCI configuration space, so we have to
-+ * re-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);
-+
-+ /* Enable LED */
-+ ath9k_hw_cfg_output(sc->sc_ah, ATH_LED_PIN,
-+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
-+ ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
-+
-+#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-+ /*
-+ * check the h/w rfkill state on resume
-+ * and start the rfkill poll timer
-+ */
-+ if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-+ queue_delayed_work(sc->hw->workqueue,
-+ &sc->rf_kill.rfkill_poll, 0);
-+#endif
-+
-+ return 0;
-+}
-+
-+#endif /* CONFIG_PM */
-+
-+MODULE_DEVICE_TABLE(pci, ath_pci_id_table);
-+
-+static struct pci_driver ath_pci_driver = {
-+ .name = "ath9k",
-+ .id_table = ath_pci_id_table,
-+ .probe = ath_pci_probe,
-+ .remove = ath_pci_remove,
-+#ifdef CONFIG_PM
-+ .suspend = ath_pci_suspend,
-+ .resume = ath_pci_resume,
-+#endif /* CONFIG_PM */
-+};
-+
-+int __init ath_pci_init(void)
-+{
-+ return pci_register_driver(&ath_pci_driver);
-+}
-+
-+void ath_pci_exit(void)
-+{
-+ pci_unregister_driver(&ath_pci_driver);
-+}
projects / openwrt / svn-archive / archive.git / blobdiff