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185 lines
4.3 KiB
185 lines
4.3 KiB
/* |
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* Copyright (c) 2008-2011 Atheros Communications Inc. |
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* Copyright (c) 2009 Gabor Juhos <[email protected]> |
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* Copyright (c) 2009 Imre Kaloz <[email protected]> |
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* |
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* Permission to use, copy, modify, and/or distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include <linux/nl80211.h> |
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#include <linux/platform_device.h> |
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#include <linux/module.h> |
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#include <linux/mod_devicetable.h> |
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#include "ath9k.h" |
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static const struct platform_device_id ath9k_platform_id_table[] = { |
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{ |
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.name = "ath9k", |
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.driver_data = AR5416_AR9100_DEVID, |
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}, |
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{ |
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.name = "ar933x_wmac", |
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.driver_data = AR9300_DEVID_AR9330, |
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}, |
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{ |
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.name = "ar934x_wmac", |
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.driver_data = AR9300_DEVID_AR9340, |
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}, |
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{ |
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.name = "qca955x_wmac", |
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.driver_data = AR9300_DEVID_QCA955X, |
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}, |
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{ |
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.name = "qca953x_wmac", |
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.driver_data = AR9300_DEVID_AR953X, |
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}, |
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{ |
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.name = "qca956x_wmac", |
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.driver_data = AR9300_DEVID_QCA956X, |
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}, |
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{}, |
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}; |
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/* return bus cachesize in 4B word units */ |
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static void ath_ahb_read_cachesize(struct ath_common *common, int *csz) |
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{ |
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*csz = L1_CACHE_BYTES >> 2; |
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} |
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static bool ath_ahb_eeprom_read(struct ath_common *common, u32 off, u16 *data) |
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{ |
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ath_err(common, "%s: eeprom data has to be provided externally\n", |
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__func__); |
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return false; |
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} |
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static const struct ath_bus_ops ath_ahb_bus_ops = { |
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.ath_bus_type = ATH_AHB, |
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.read_cachesize = ath_ahb_read_cachesize, |
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.eeprom_read = ath_ahb_eeprom_read, |
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}; |
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static int ath_ahb_probe(struct platform_device *pdev) |
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{ |
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void __iomem *mem; |
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struct ath_softc *sc; |
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struct ieee80211_hw *hw; |
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struct resource *res; |
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const struct platform_device_id *id = platform_get_device_id(pdev); |
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int irq; |
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int ret = 0; |
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struct ath_hw *ah; |
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char hw_name[64]; |
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if (!dev_get_platdata(&pdev->dev)) { |
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dev_err(&pdev->dev, "no platform data specified\n"); |
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return -EINVAL; |
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} |
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
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if (res == NULL) { |
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dev_err(&pdev->dev, "no memory resource found\n"); |
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return -ENXIO; |
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} |
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mem = devm_ioremap(&pdev->dev, res->start, resource_size(res)); |
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if (mem == NULL) { |
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dev_err(&pdev->dev, "ioremap failed\n"); |
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return -ENOMEM; |
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} |
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res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
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if (res == NULL) { |
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dev_err(&pdev->dev, "no IRQ resource found\n"); |
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return -ENXIO; |
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} |
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irq = res->start; |
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ath9k_fill_chanctx_ops(); |
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hw = ieee80211_alloc_hw(sizeof(struct ath_softc), &ath9k_ops); |
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if (hw == NULL) { |
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dev_err(&pdev->dev, "no memory for ieee80211_hw\n"); |
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return -ENOMEM; |
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} |
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SET_IEEE80211_DEV(hw, &pdev->dev); |
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platform_set_drvdata(pdev, hw); |
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sc = hw->priv; |
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sc->hw = hw; |
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sc->dev = &pdev->dev; |
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sc->mem = mem; |
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sc->irq = irq; |
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ret = request_irq(irq, ath_isr, IRQF_SHARED, "ath9k", sc); |
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if (ret) { |
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dev_err(&pdev->dev, "request_irq failed\n"); |
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goto err_free_hw; |
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} |
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ret = ath9k_init_device(id->driver_data, sc, &ath_ahb_bus_ops); |
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if (ret) { |
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dev_err(&pdev->dev, "failed to initialize device\n"); |
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goto err_irq; |
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} |
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ah = sc->sc_ah; |
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ath9k_hw_name(ah, hw_name, sizeof(hw_name)); |
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wiphy_info(hw->wiphy, "%s mem=0x%lx, irq=%d\n", |
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hw_name, (unsigned long)mem, irq); |
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return 0; |
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err_irq: |
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free_irq(irq, sc); |
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err_free_hw: |
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ieee80211_free_hw(hw); |
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return ret; |
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} |
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static int ath_ahb_remove(struct platform_device *pdev) |
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{ |
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struct ieee80211_hw *hw = platform_get_drvdata(pdev); |
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if (hw) { |
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struct ath_softc *sc = hw->priv; |
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ath9k_deinit_device(sc); |
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free_irq(sc->irq, sc); |
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ieee80211_free_hw(sc->hw); |
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} |
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return 0; |
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} |
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static struct platform_driver ath_ahb_driver = { |
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.probe = ath_ahb_probe, |
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.remove = ath_ahb_remove, |
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.driver = { |
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.name = "ath9k", |
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}, |
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.id_table = ath9k_platform_id_table, |
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}; |
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MODULE_DEVICE_TABLE(platform, ath9k_platform_id_table); |
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int ath_ahb_init(void) |
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{ |
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return platform_driver_register(&ath_ahb_driver); |
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} |
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void ath_ahb_exit(void) |
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{ |
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platform_driver_unregister(&ath_ahb_driver); |
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}
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