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brcmfmac: Add wowl support for SDIO devices.
This patch adds wowl support for SDIO bus devices. This feature requires FW which has support for wowl built in. Reviewed-by: Arend Van Spriel <arend@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Hante Meuleman <meuleman@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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parent
244b124c6a
commit
330b4e4be9
3 changed files with 34 additions and 14 deletions
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@ -1064,6 +1064,16 @@ static int brcmf_ops_sdio_probe(struct sdio_func *func,
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if (!sdiodev->pdata)
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brcmf_of_probe(sdiodev);
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#ifdef CONFIG_PM_SLEEP
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/* wowl can be supported when KEEP_POWER is true and (WAKE_SDIO_IRQ
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* is true or when platform data OOB irq is true).
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*/
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if ((sdio_get_host_pm_caps(sdiodev->func[1]) & MMC_PM_KEEP_POWER) &&
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((sdio_get_host_pm_caps(sdiodev->func[1]) & MMC_PM_WAKE_SDIO_IRQ) ||
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(sdiodev->pdata->oob_irq_supported)))
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bus_if->wowl_supported = true;
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#endif
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atomic_set(&sdiodev->suspend, false);
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init_waitqueue_head(&sdiodev->request_word_wait);
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init_waitqueue_head(&sdiodev->request_buffer_wait);
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@ -1116,34 +1126,39 @@ static void brcmf_ops_sdio_remove(struct sdio_func *func)
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brcmf_dbg(SDIO, "Exit\n");
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}
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void brcmf_sdio_wowl_config(struct device *dev, bool enabled)
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{
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struct brcmf_bus *bus_if = dev_get_drvdata(dev);
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struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
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brcmf_dbg(SDIO, "Configuring WOWL, enabled=%d\n", enabled);
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sdiodev->wowl_enabled = enabled;
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}
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#ifdef CONFIG_PM_SLEEP
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static int brcmf_ops_sdio_suspend(struct device *dev)
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{
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mmc_pm_flag_t sdio_flags;
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struct brcmf_bus *bus_if = dev_get_drvdata(dev);
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struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
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int ret = 0;
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mmc_pm_flag_t sdio_flags;
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brcmf_dbg(SDIO, "Enter\n");
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sdio_flags = sdio_get_host_pm_caps(sdiodev->func[1]);
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if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
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brcmf_err("Host can't keep power while suspended\n");
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return -EINVAL;
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}
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atomic_set(&sdiodev->suspend, true);
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ret = sdio_set_host_pm_flags(sdiodev->func[1], MMC_PM_KEEP_POWER);
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if (ret) {
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brcmf_err("Failed to set pm_flags\n");
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atomic_set(&sdiodev->suspend, false);
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return ret;
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if (sdiodev->wowl_enabled) {
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sdio_flags = MMC_PM_KEEP_POWER;
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if (sdiodev->pdata->oob_irq_supported)
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enable_irq_wake(sdiodev->pdata->oob_irq_nr);
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else
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sdio_flags = MMC_PM_WAKE_SDIO_IRQ;
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if (sdio_set_host_pm_flags(sdiodev->func[1], sdio_flags))
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brcmf_err("Failed to set pm_flags %x\n", sdio_flags);
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}
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brcmf_sdio_wd_timer(sdiodev->bus, 0);
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return ret;
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return 0;
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}
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static int brcmf_ops_sdio_resume(struct device *dev)
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@ -1152,6 +1167,8 @@ static int brcmf_ops_sdio_resume(struct device *dev)
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struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
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brcmf_dbg(SDIO, "Enter\n");
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if (sdiodev->pdata->oob_irq_supported)
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disable_irq_wake(sdiodev->pdata->oob_irq_nr);
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brcmf_sdio_wd_timer(sdiodev->bus, BRCMF_WD_POLL_MS);
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atomic_set(&sdiodev->suspend, false);
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return 0;
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@ -3949,6 +3949,7 @@ static struct brcmf_bus_ops brcmf_sdio_bus_ops = {
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.txctl = brcmf_sdio_bus_txctl,
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.rxctl = brcmf_sdio_bus_rxctl,
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.gettxq = brcmf_sdio_bus_gettxq,
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.wowl_config = brcmf_sdio_wowl_config
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};
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static void brcmf_sdio_firmware_callback(struct device *dev,
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@ -186,6 +186,7 @@ struct brcmf_sdio_dev {
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struct sg_table sgtable;
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char fw_name[BRCMF_FW_PATH_LEN + BRCMF_FW_NAME_LEN];
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char nvram_name[BRCMF_FW_PATH_LEN + BRCMF_FW_NAME_LEN];
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bool wowl_enabled;
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};
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/* sdio core registers */
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@ -334,5 +335,6 @@ void brcmf_sdio_remove(struct brcmf_sdio *bus);
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void brcmf_sdio_isr(struct brcmf_sdio *bus);
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void brcmf_sdio_wd_timer(struct brcmf_sdio *bus, uint wdtick);
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void brcmf_sdio_wowl_config(struct device *dev, bool enabled);
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#endif /* _BRCM_SDH_H_ */
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