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path: root/drivers/net/wireless/ath/ath6kl/sdio.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath6kl/sdio.c')
-rw-r--r--drivers/net/wireless/ath/ath6kl/sdio.c140
1 files changed, 87 insertions, 53 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c
index 9475e2d0d0b..4febee72349 100644
--- a/drivers/net/wireless/ath/ath6kl/sdio.c
+++ b/drivers/net/wireless/ath/ath6kl/sdio.c
@@ -49,11 +49,13 @@ struct ath6kl_sdio {
/* scatter request list head */
struct list_head scat_req;
+ /* Avoids disabling irq while the interrupts being handled */
+ struct mutex mtx_irq;
+
spinlock_t scat_lock;
bool scatter_enabled;
bool is_disabled;
- atomic_t irq_handling;
const struct sdio_device_id *id;
struct work_struct wr_async_work;
struct list_head wr_asyncq;
@@ -460,8 +462,7 @@ static void ath6kl_sdio_irq_handler(struct sdio_func *func)
ath6kl_dbg(ATH6KL_DBG_SDIO, "irq\n");
ar_sdio = sdio_get_drvdata(func);
- atomic_set(&ar_sdio->irq_handling, 1);
-
+ mutex_lock(&ar_sdio->mtx_irq);
/*
* Release the host during interrups so we can pick it back up when
* we process commands.
@@ -470,7 +471,7 @@ static void ath6kl_sdio_irq_handler(struct sdio_func *func)
status = ath6kl_hif_intr_bh_handler(ar_sdio->ar);
sdio_claim_host(ar_sdio->func);
- atomic_set(&ar_sdio->irq_handling, 0);
+ mutex_unlock(&ar_sdio->mtx_irq);
WARN_ON(status && status != -ECANCELED);
}
@@ -578,17 +579,14 @@ static void ath6kl_sdio_irq_disable(struct ath6kl *ar)
sdio_claim_host(ar_sdio->func);
- /* Mask our function IRQ */
- while (atomic_read(&ar_sdio->irq_handling)) {
- sdio_release_host(ar_sdio->func);
- schedule_timeout(HZ / 10);
- sdio_claim_host(ar_sdio->func);
- }
+ mutex_lock(&ar_sdio->mtx_irq);
ret = sdio_release_irq(ar_sdio->func);
if (ret)
ath6kl_err("Failed to release sdio irq: %d\n", ret);
+ mutex_unlock(&ar_sdio->mtx_irq);
+
sdio_release_host(ar_sdio->func);
}
@@ -772,7 +770,6 @@ static int ath6kl_sdio_config(struct ath6kl *ar)
if (ret) {
ath6kl_err("Set sdio block size %d failed: %d)\n",
HIF_MBOX_BLOCK_SIZE, ret);
- sdio_release_host(func);
goto out;
}
@@ -782,7 +779,7 @@ out:
return ret;
}
-static int ath6kl_sdio_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
+static int ath6kl_set_sdio_pm_caps(struct ath6kl *ar)
{
struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);
struct sdio_func *func = ar_sdio->func;
@@ -793,60 +790,95 @@ static int ath6kl_sdio_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
ath6kl_dbg(ATH6KL_DBG_SUSPEND, "sdio suspend pm_caps 0x%x\n", flags);
- if (!(flags & MMC_PM_KEEP_POWER) ||
- (ar->conf_flags & ATH6KL_CONF_SUSPEND_CUTPOWER)) {
- /* as host doesn't support keep power we need to cut power */
- return ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_CUTPOWER,
- NULL);
- }
+ if (!(flags & MMC_PM_WAKE_SDIO_IRQ) ||
+ !(flags & MMC_PM_KEEP_POWER))
+ return -EINVAL;
ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
if (ret) {
- printk(KERN_ERR "ath6kl: set sdio pm flags failed: %d\n",
- ret);
+ ath6kl_err("set sdio keep pwr flag failed: %d\n", ret);
return ret;
}
- if (!(flags & MMC_PM_WAKE_SDIO_IRQ))
- goto deepsleep;
-
/* sdio irq wakes up host */
+ ret = sdio_set_host_pm_flags(func, MMC_PM_WAKE_SDIO_IRQ);
+ if (ret)
+ ath6kl_err("set sdio wake irq flag failed: %d\n", ret);
+
+ return ret;
+}
+
+static int ath6kl_sdio_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
+{
+ struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);
+ struct sdio_func *func = ar_sdio->func;
+ mmc_pm_flag_t flags;
+ int ret;
if (ar->state == ATH6KL_STATE_SCHED_SCAN) {
+ ath6kl_dbg(ATH6KL_DBG_SUSPEND, "sched scan is in progress\n");
+
+ ret = ath6kl_set_sdio_pm_caps(ar);
+ if (ret)
+ goto cut_pwr;
+
ret = ath6kl_cfg80211_suspend(ar,
ATH6KL_CFG_SUSPEND_SCHED_SCAN,
NULL);
- if (ret) {
- ath6kl_warn("Schedule scan suspend failed: %d", ret);
- return ret;
- }
+ if (ret)
+ goto cut_pwr;
+
+ return 0;
+ }
+
+ if (ar->suspend_mode == WLAN_POWER_STATE_WOW ||
+ (!ar->suspend_mode && wow)) {
- ret = sdio_set_host_pm_flags(func, MMC_PM_WAKE_SDIO_IRQ);
+ ret = ath6kl_set_sdio_pm_caps(ar);
if (ret)
- ath6kl_warn("set sdio wake irq flag failed: %d\n", ret);
+ goto cut_pwr;
- return ret;
+ ret = ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_WOW, wow);
+ if (ret)
+ goto cut_pwr;
+
+ return 0;
}
- if (wow) {
+ if (ar->suspend_mode == WLAN_POWER_STATE_DEEP_SLEEP ||
+ !ar->suspend_mode) {
+
+ flags = sdio_get_host_pm_caps(func);
+ if (!(flags & MMC_PM_KEEP_POWER))
+ goto cut_pwr;
+
+ ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+ if (ret)
+ goto cut_pwr;
+
/*
- * The host sdio controller is capable of keep power and
- * sdio irq wake up at this point. It's fine to continue
- * wow suspend operation.
+ * Workaround to support Deep Sleep with MSM, set the host pm
+ * flag as MMC_PM_WAKE_SDIO_IRQ to allow SDCC deiver to disable
+ * the sdc2_clock and internally allows MSM to enter
+ * TCXO shutdown properly.
*/
- ret = ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_WOW, wow);
- if (ret)
- return ret;
+ if ((flags & MMC_PM_WAKE_SDIO_IRQ)) {
+ ret = sdio_set_host_pm_flags(func,
+ MMC_PM_WAKE_SDIO_IRQ);
+ if (ret)
+ goto cut_pwr;
+ }
- ret = sdio_set_host_pm_flags(func, MMC_PM_WAKE_SDIO_IRQ);
+ ret = ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_DEEPSLEEP,
+ NULL);
if (ret)
- ath6kl_err("set sdio wake irq flag failed: %d\n", ret);
+ goto cut_pwr;
- return ret;
+ return 0;
}
-deepsleep:
- return ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_DEEPSLEEP, NULL);
+cut_pwr:
+ return ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_CUTPOWER, NULL);
}
static int ath6kl_sdio_resume(struct ath6kl *ar)
@@ -1253,6 +1285,7 @@ static int ath6kl_sdio_probe(struct sdio_func *func,
spin_lock_init(&ar_sdio->scat_lock);
spin_lock_init(&ar_sdio->wr_async_lock);
mutex_init(&ar_sdio->dma_buffer_mutex);
+ mutex_init(&ar_sdio->mtx_irq);
INIT_LIST_HEAD(&ar_sdio->scat_req);
INIT_LIST_HEAD(&ar_sdio->bus_req_freeq);
@@ -1263,7 +1296,7 @@ static int ath6kl_sdio_probe(struct sdio_func *func,
for (count = 0; count < BUS_REQUEST_MAX_NUM; count++)
ath6kl_sdio_free_bus_req(ar_sdio, &ar_sdio->bus_req[count]);
- ar = ath6kl_core_alloc(&ar_sdio->func->dev);
+ ar = ath6kl_core_create(&ar_sdio->func->dev);
if (!ar) {
ath6kl_err("Failed to alloc ath6kl core\n");
ret = -ENOMEM;
@@ -1293,7 +1326,7 @@ static int ath6kl_sdio_probe(struct sdio_func *func,
return ret;
err_core_alloc:
- ath6kl_core_free(ar_sdio->ar);
+ ath6kl_core_destroy(ar_sdio->ar);
err_dma:
kfree(ar_sdio->dma_buffer);
err_hif:
@@ -1316,6 +1349,7 @@ static void ath6kl_sdio_remove(struct sdio_func *func)
cancel_work_sync(&ar_sdio->wr_async_work);
ath6kl_core_cleanup(ar_sdio->ar);
+ ath6kl_core_destroy(ar_sdio->ar);
kfree(ar_sdio->dma_buffer);
kfree(ar_sdio);
@@ -1332,7 +1366,7 @@ static const struct sdio_device_id ath6kl_sdio_devices[] = {
MODULE_DEVICE_TABLE(sdio, ath6kl_sdio_devices);
static struct sdio_driver ath6kl_sdio_driver = {
- .name = "ath6kl",
+ .name = "ath6kl_sdio",
.id_table = ath6kl_sdio_devices,
.probe = ath6kl_sdio_probe,
.remove = ath6kl_sdio_remove,
@@ -1362,19 +1396,19 @@ MODULE_AUTHOR("Atheros Communications, Inc.");
MODULE_DESCRIPTION("Driver support for Atheros AR600x SDIO devices");
MODULE_LICENSE("Dual BSD/GPL");
-MODULE_FIRMWARE(AR6003_HW_2_0_OTP_FILE);
-MODULE_FIRMWARE(AR6003_HW_2_0_FIRMWARE_FILE);
-MODULE_FIRMWARE(AR6003_HW_2_0_PATCH_FILE);
+MODULE_FIRMWARE(AR6003_HW_2_0_FW_DIR "/" AR6003_HW_2_0_OTP_FILE);
+MODULE_FIRMWARE(AR6003_HW_2_0_FW_DIR "/" AR6003_HW_2_0_FIRMWARE_FILE);
+MODULE_FIRMWARE(AR6003_HW_2_0_FW_DIR "/" AR6003_HW_2_0_PATCH_FILE);
MODULE_FIRMWARE(AR6003_HW_2_0_BOARD_DATA_FILE);
MODULE_FIRMWARE(AR6003_HW_2_0_DEFAULT_BOARD_DATA_FILE);
-MODULE_FIRMWARE(AR6003_HW_2_1_1_OTP_FILE);
-MODULE_FIRMWARE(AR6003_HW_2_1_1_FIRMWARE_FILE);
-MODULE_FIRMWARE(AR6003_HW_2_1_1_PATCH_FILE);
+MODULE_FIRMWARE(AR6003_HW_2_1_1_FW_DIR "/" AR6003_HW_2_1_1_OTP_FILE);
+MODULE_FIRMWARE(AR6003_HW_2_1_1_FW_DIR "/" AR6003_HW_2_1_1_FIRMWARE_FILE);
+MODULE_FIRMWARE(AR6003_HW_2_1_1_FW_DIR "/" AR6003_HW_2_1_1_PATCH_FILE);
MODULE_FIRMWARE(AR6003_HW_2_1_1_BOARD_DATA_FILE);
MODULE_FIRMWARE(AR6003_HW_2_1_1_DEFAULT_BOARD_DATA_FILE);
-MODULE_FIRMWARE(AR6004_HW_1_0_FIRMWARE_FILE);
+MODULE_FIRMWARE(AR6004_HW_1_0_FW_DIR "/" AR6004_HW_1_0_FIRMWARE_FILE);
MODULE_FIRMWARE(AR6004_HW_1_0_BOARD_DATA_FILE);
MODULE_FIRMWARE(AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE);
-MODULE_FIRMWARE(AR6004_HW_1_1_FIRMWARE_FILE);
+MODULE_FIRMWARE(AR6004_HW_1_1_FW_DIR "/" AR6004_HW_1_1_FIRMWARE_FILE);
MODULE_FIRMWARE(AR6004_HW_1_1_BOARD_DATA_FILE);
MODULE_FIRMWARE(AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-10 21:42:09 +0000