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2fa490c0d7
Since 2b0996c764 , all of this platform code became no-op with no OF
replacement. Not only that, there are no users of AHB here. Add an OF
match table that mostly mirrors the original platform device id table.
Use a qca prefix as is done for the only other property: qca,no-eeprom.
Also used qca prefix for ar9530 as the latter seems to be a mistake.
This will be used to add ath9k support for the various ath79 devices
here.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Link: https://patch.msgid.link/20250609030851.17739-5-rosenp@gmail.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
152 lines
4 KiB
C
152 lines
4 KiB
C
/*
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* Copyright (c) 2008-2011 Atheros Communications Inc.
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* Copyright (c) 2009 Gabor Juhos <juhosg@openwrt.org>
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* Copyright (c) 2009 Imre Kaloz <kaloz@openwrt.org>
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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/mod_devicetable.h>
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#include <linux/module.h>
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#include <linux/nl80211.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include "ath9k.h"
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static const struct of_device_id ath9k_of_match_table[] = {
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{ .compatible = "qca,ar9130-wifi", .data = (void *)AR5416_AR9100_DEVID },
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{ .compatible = "qca,ar9330-wifi", .data = (void *)AR9300_DEVID_AR9330 },
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{ .compatible = "qca,ar9340-wifi", .data = (void *)AR9300_DEVID_AR9340 },
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{ .compatible = "qca,qca9530-wifi", .data = (void *)AR9300_DEVID_AR953X },
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{ .compatible = "qca,qca9550-wifi", .data = (void *)AR9300_DEVID_QCA955X },
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{ .compatible = "qca,qca9560-wifi", .data = (void *)AR9300_DEVID_QCA956X },
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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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struct ieee80211_hw *hw;
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struct ath_softc *sc;
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struct ath_hw *ah;
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void __iomem *mem;
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char hw_name[64];
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u16 dev_id;
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int irq;
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int ret;
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mem = devm_platform_ioremap_resource(pdev, 0);
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if (IS_ERR(mem)) {
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dev_err(&pdev->dev, "ioremap failed\n");
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return PTR_ERR(mem);
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}
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irq = platform_get_irq(pdev, 0);
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if (irq < 0)
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return irq;
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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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dev_id = (u16)(kernel_ulong_t)of_device_get_match_data(&pdev->dev);
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ret = ath9k_init_device(dev_id, 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%p, irq=%d\n",
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hw_name, 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 void 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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}
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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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.of_match_table = ath9k_of_match_table,
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},
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};
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MODULE_DEVICE_TABLE(of, ath9k_of_match_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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