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path: root/drivers/net/wireless/wl12xx/sdio.c
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Diffstat (limited to 'drivers/net/wireless/wl12xx/sdio.c')
-rw-r--r--drivers/net/wireless/wl12xx/sdio.c156
1 files changed, 114 insertions, 42 deletions
diff --git a/drivers/net/wireless/wl12xx/sdio.c b/drivers/net/wireless/wl12xx/sdio.c
index b1c7d031c39..5cf18c2c23f 100644
--- a/drivers/net/wireless/wl12xx/sdio.c
+++ b/drivers/net/wireless/wl12xx/sdio.c
@@ -23,7 +23,6 @@
#include <linux/irq.h>
#include <linux/module.h>
-#include <linux/crc7.h>
#include <linux/vmalloc.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio_ids.h>
@@ -45,12 +44,19 @@
#define SDIO_DEVICE_ID_TI_WL1271 0x4076
#endif
-static const struct sdio_device_id wl1271_devices[] = {
+static const struct sdio_device_id wl1271_devices[] __devinitconst = {
{ SDIO_DEVICE(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271) },
{}
};
MODULE_DEVICE_TABLE(sdio, wl1271_devices);
+static void wl1271_sdio_set_block_size(struct wl1271 *wl, unsigned int blksz)
+{
+ sdio_claim_host(wl->if_priv);
+ sdio_set_block_size(wl->if_priv, blksz);
+ sdio_release_host(wl->if_priv);
+}
+
static inline struct sdio_func *wl_to_func(struct wl1271 *wl)
{
return wl->if_priv;
@@ -75,6 +81,16 @@ static irqreturn_t wl1271_hardirq(int irq, void *cookie)
complete(wl->elp_compl);
wl->elp_compl = NULL;
}
+
+ if (test_bit(WL1271_FLAG_SUSPENDED, &wl->flags)) {
+ /* don't enqueue a work right now. mark it as pending */
+ set_bit(WL1271_FLAG_PENDING_WORK, &wl->flags);
+ wl1271_debug(DEBUG_IRQ, "should not enqueue work");
+ disable_irq_nosync(wl->irq);
+ pm_wakeup_event(wl1271_sdio_wl_to_dev(wl), 0);
+ spin_unlock_irqrestore(&wl->wl_lock, flags);
+ return IRQ_HANDLED;
+ }
spin_unlock_irqrestore(&wl->wl_lock, flags);
return IRQ_WAKE_THREAD;
@@ -90,14 +106,6 @@ static void wl1271_sdio_enable_interrupts(struct wl1271 *wl)
enable_irq(wl->irq);
}
-static void wl1271_sdio_reset(struct wl1271 *wl)
-{
-}
-
-static void wl1271_sdio_init(struct wl1271 *wl)
-{
-}
-
static void wl1271_sdio_raw_read(struct wl1271 *wl, int addr, void *buf,
size_t len, bool fixed)
{
@@ -153,15 +161,17 @@ static int wl1271_sdio_power_on(struct wl1271 *wl)
struct sdio_func *func = wl_to_func(wl);
int ret;
- /* Make sure the card will not be powered off by runtime PM */
- ret = pm_runtime_get_sync(&func->dev);
- if (ret < 0)
- goto out;
-
- /* Runtime PM might be disabled, so power up the card manually */
- ret = mmc_power_restore_host(func->card->host);
- if (ret < 0)
- goto out;
+ /* If enabled, tell runtime PM not to power off the card */
+ if (pm_runtime_enabled(&func->dev)) {
+ ret = pm_runtime_get_sync(&func->dev);
+ if (ret)
+ goto out;
+ } else {
+ /* Runtime PM is disabled: power up the card manually */
+ ret = mmc_power_restore_host(func->card->host);
+ if (ret < 0)
+ goto out;
+ }
sdio_claim_host(func);
sdio_enable_func(func);
@@ -178,13 +188,16 @@ static int wl1271_sdio_power_off(struct wl1271 *wl)
sdio_disable_func(func);
sdio_release_host(func);
- /* Runtime PM might be disabled, so power off the card manually */
+ /* Power off the card manually, even if runtime PM is enabled. */
ret = mmc_power_save_host(func->card->host);
if (ret < 0)
return ret;
- /* Let runtime PM know the card is powered off */
- return pm_runtime_put_sync(&func->dev);
+ /* If enabled, let runtime PM know the card is powered off */
+ if (pm_runtime_enabled(&func->dev))
+ ret = pm_runtime_put_sync(&func->dev);
+
+ return ret;
}
static int wl1271_sdio_set_power(struct wl1271 *wl, bool enable)
@@ -198,12 +211,11 @@ static int wl1271_sdio_set_power(struct wl1271 *wl, bool enable)
static struct wl1271_if_operations sdio_ops = {
.read = wl1271_sdio_raw_read,
.write = wl1271_sdio_raw_write,
- .reset = wl1271_sdio_reset,
- .init = wl1271_sdio_init,
.power = wl1271_sdio_set_power,
.dev = wl1271_sdio_wl_to_dev,
.enable_irq = wl1271_sdio_enable_interrupts,
- .disable_irq = wl1271_sdio_disable_interrupts
+ .disable_irq = wl1271_sdio_disable_interrupts,
+ .set_block_size = wl1271_sdio_set_block_size,
};
static int __devinit wl1271_probe(struct sdio_func *func,
@@ -212,6 +224,8 @@ static int __devinit wl1271_probe(struct sdio_func *func,
struct ieee80211_hw *hw;
const struct wl12xx_platform_data *wlan_data;
struct wl1271 *wl;
+ unsigned long irqflags;
+ mmc_pm_flag_t mmcflags;
int ret;
/* We are only able to handle the wlan function */
@@ -230,6 +244,9 @@ static int __devinit wl1271_probe(struct sdio_func *func,
/* Grab access to FN0 for ELP reg. */
func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
+ /* Use block mode for transferring over one block size of data */
+ func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
+
wlan_data = wl12xx_get_platform_data();
if (IS_ERR(wlan_data)) {
ret = PTR_ERR(wlan_data);
@@ -239,15 +256,34 @@ static int __devinit wl1271_probe(struct sdio_func *func,
wl->irq = wlan_data->irq;
wl->ref_clock = wlan_data->board_ref_clock;
+ wl->tcxo_clock = wlan_data->board_tcxo_clock;
+ wl->platform_quirks = wlan_data->platform_quirks;
+
+ if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
+ irqflags = IRQF_TRIGGER_RISING;
+ else
+ irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
ret = request_threaded_irq(wl->irq, wl1271_hardirq, wl1271_irq,
- IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+ irqflags,
DRIVER_NAME, wl);
if (ret < 0) {
wl1271_error("request_irq() failed: %d", ret);
goto out_free;
}
+ ret = enable_irq_wake(wl->irq);
+ if (!ret) {
+ wl->irq_wake_enabled = true;
+ device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 1);
+
+ /* if sdio can keep power while host is suspended, enable wow */
+ mmcflags = sdio_get_host_pm_caps(func);
+ wl1271_debug(DEBUG_SDIO, "sdio PM caps = 0x%x", mmcflags);
+
+ if (mmcflags & MMC_PM_KEEP_POWER)
+ hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY;
+ }
disable_irq(wl->irq);
ret = wl1271_init_ieee80211(wl);
@@ -263,8 +299,6 @@ static int __devinit wl1271_probe(struct sdio_func *func,
/* Tell PM core that we don't need the card to be powered now */
pm_runtime_put_noidle(&func->dev);
- wl1271_notice("initialized");
-
return 0;
out_irq:
@@ -284,19 +318,63 @@ static void __devexit wl1271_remove(struct sdio_func *func)
pm_runtime_get_noresume(&func->dev);
wl1271_unregister_hw(wl);
+ if (wl->irq_wake_enabled) {
+ device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 0);
+ disable_irq_wake(wl->irq);
+ }
free_irq(wl->irq, wl);
wl1271_free_hw(wl);
}
+#ifdef CONFIG_PM
static int wl1271_suspend(struct device *dev)
{
/* Tell MMC/SDIO core it's OK to power down the card
* (if it isn't already), but not to remove it completely */
- return 0;
+ struct sdio_func *func = dev_to_sdio_func(dev);
+ struct wl1271 *wl = sdio_get_drvdata(func);
+ mmc_pm_flag_t sdio_flags;
+ int ret = 0;
+
+ wl1271_debug(DEBUG_MAC80211, "wl1271 suspend. wow_enabled: %d",
+ wl->wow_enabled);
+
+ /* check whether sdio should keep power */
+ if (wl->wow_enabled) {
+ sdio_flags = sdio_get_host_pm_caps(func);
+
+ if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
+ wl1271_error("can't keep power while host "
+ "is suspended");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* keep power while host suspended */
+ ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+ if (ret) {
+ wl1271_error("error while trying to keep power");
+ goto out;
+ }
+
+ /* release host */
+ sdio_release_host(func);
+ }
+out:
+ return ret;
}
static int wl1271_resume(struct device *dev)
{
+ struct sdio_func *func = dev_to_sdio_func(dev);
+ struct wl1271 *wl = sdio_get_drvdata(func);
+
+ wl1271_debug(DEBUG_MAC80211, "wl1271 resume");
+ if (wl->wow_enabled) {
+ /* claim back host */
+ sdio_claim_host(func);
+ }
+
return 0;
}
@@ -304,36 +382,28 @@ static const struct dev_pm_ops wl1271_sdio_pm_ops = {
.suspend = wl1271_suspend,
.resume = wl1271_resume,
};
+#endif
static struct sdio_driver wl1271_sdio_driver = {
.name = "wl1271_sdio",
.id_table = wl1271_devices,
.probe = wl1271_probe,
.remove = __devexit_p(wl1271_remove),
+#ifdef CONFIG_PM
.drv = {
.pm = &wl1271_sdio_pm_ops,
},
+#endif
};
static int __init wl1271_init(void)
{
- int ret;
-
- ret = sdio_register_driver(&wl1271_sdio_driver);
- if (ret < 0) {
- wl1271_error("failed to register sdio driver: %d", ret);
- goto out;
- }
-
-out:
- return ret;
+ return sdio_register_driver(&wl1271_sdio_driver);
}
static void __exit wl1271_exit(void)
{
sdio_unregister_driver(&wl1271_sdio_driver);
-
- wl1271_notice("unloaded");
}
module_init(wl1271_init);
@@ -343,4 +413,6 @@ MODULE_LICENSE("GPL");
MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
MODULE_FIRMWARE(WL1271_FW_NAME);
-MODULE_FIRMWARE(WL1271_AP_FW_NAME);
+MODULE_FIRMWARE(WL128X_FW_NAME);
+MODULE_FIRMWARE(WL127X_AP_FW_NAME);
+MODULE_FIRMWARE(WL128X_AP_FW_NAME);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-03-30 12:07:51 +0000