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Subject[PATCH 15/19] staging/wilc1000: turn enable_irq/disable_irq into callbacks
Date
As a preparation for turning the SDIO side of wilc1000 into a separate
module, this removes the last direct caller from the core module into
the sdio specific portion. All calls to wilc_sdio_enable_interrupt()
and wilc_sdio_disable_interrupt() now go through a function pointer
in wilc_hif_func. We also change arguments slightly to pass the device,
as we are already touching those lines and the change will be needed
later to remove the global variables.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/staging/wilc1000/linux_wlan.c | 22 +++++++++++++---------
drivers/staging/wilc1000/linux_wlan_sdio.c | 21 +++++++++++----------
drivers/staging/wilc1000/linux_wlan_sdio.h | 4 ++--
drivers/staging/wilc1000/wilc_sdio.c | 2 ++
drivers/staging/wilc1000/wilc_wlan.h | 2 ++
5 files changed, 30 insertions(+), 21 deletions(-)

diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c
index 2fb1d97bded1..1b6e1eec2446 100644
--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -25,8 +25,6 @@

#include <linux/semaphore.h>

-#include "linux_wlan_sdio.h"
-
static int dev_state_ev_handler(struct notifier_block *this, unsigned long event, void *ptr);

static struct notifier_block g_dev_notifier = {
@@ -739,9 +737,10 @@ void wilc1000_wlan_deinit(struct net_device *dev)
#endif

PRINT_D(INIT_DBG, "Disabling IRQ\n");
- if (!wl->dev_irq_num) {
+ if (!wl->dev_irq_num &&
+ wl->ops->disable_interrupt) {
mutex_lock(&wl->hif_cs);
- wilc_sdio_disable_interrupt();
+ wl->ops->disable_interrupt(wl);
mutex_unlock(&wl->hif_cs);
}
if (&wl->txq_event)
@@ -758,11 +757,13 @@ void wilc1000_wlan_deinit(struct net_device *dev)
PRINT_D(INIT_DBG, "Deinitializing WILC Wlan\n");
wilc_wlan_cleanup(dev);
#if defined(PLAT_ALLWINNER_A20) || defined(PLAT_ALLWINNER_A23) || defined(PLAT_ALLWINNER_A31)
- if (!wl->dev_irq_num) {
+ if (!wl->dev_irq_num &&
+ wl->ops->disable_interrupt) {
+
PRINT_D(INIT_DBG, "Disabling IRQ 2\n");

mutex_lock(&wl->hif_cs);
- wilc_sdio_disable_interrupt();
+ wl->ops->disable_interrupt(wl);
mutex_unlock(&wl->hif_cs);
}
#endif
@@ -897,7 +898,9 @@ int wilc1000_wlan_init(struct net_device *dev, perInterface_wlan_t *p_nic)
goto _fail_wilc_wlan_;
}

- if (!wl->dev_irq_num && wilc_sdio_enable_interrupt()) {
+ if (!wl->dev_irq_num &&
+ wl->ops->enable_interrupt &&
+ wl->ops->enable_interrupt(wl)) {
PRINT_ER("couldn't initialize IRQ\n");
ret = -EIO;
goto _fail_irq_init_;
@@ -950,8 +953,9 @@ _fail_fw_start_:
wilc_wlan_stop();

_fail_irq_enable_:
- if (!wl->dev_irq_num)
- wilc_sdio_disable_interrupt();
+ if (!wl->dev_irq_num &&
+ wl->ops->disable_interrupt)
+ wl->ops->disable_interrupt(wl);
_fail_irq_init_:
if (wl->dev_irq_num)
deinit_irq(dev);
diff --git a/drivers/staging/wilc1000/linux_wlan_sdio.c b/drivers/staging/wilc1000/linux_wlan_sdio.c
index f4250fda6cf1..9072de43bcd9 100644
--- a/drivers/staging/wilc1000/linux_wlan_sdio.c
+++ b/drivers/staging/wilc1000/linux_wlan_sdio.c
@@ -1,5 +1,4 @@
#include "wilc_wfi_netdevice.h"
-#include "linux_wlan_sdio.h"

#include <linux/mmc/sdio_func.h>
#include <linux/mmc/card.h>
@@ -8,7 +7,7 @@
#include <linux/mmc/host.h>
#include <linux/of_gpio.h>

-
+#include "linux_wlan_sdio.h"

#define SDIO_MODALIAS "wilc1000_sdio"

@@ -143,13 +142,14 @@ static struct sdio_driver wilc_bus = {
.remove = linux_sdio_remove,
};

-int wilc_sdio_enable_interrupt(void)
+int wilc_sdio_enable_interrupt(struct wilc *dev)
{
+ struct sdio_func *func = container_of(dev->dev, struct sdio_func, dev);
int ret = 0;

- sdio_claim_host(wilc_sdio_func);
- ret = sdio_claim_irq(wilc_sdio_func, wilc_sdio_interrupt);
- sdio_release_host(wilc_sdio_func);
+ sdio_claim_host(func);
+ ret = sdio_claim_irq(func, wilc_sdio_interrupt);
+ sdio_release_host(func);

if (ret < 0) {
PRINT_ER("can't claim sdio_irq, err(%d)\n", ret);
@@ -158,18 +158,19 @@ int wilc_sdio_enable_interrupt(void)
return ret;
}

-void wilc_sdio_disable_interrupt(void)
+void wilc_sdio_disable_interrupt(struct wilc *dev)
{
+ struct sdio_func *func = container_of(dev->dev, struct sdio_func, dev);
int ret;

PRINT_D(INIT_DBG, "wilc_sdio_disable_interrupt IN\n");

- sdio_claim_host(wilc_sdio_func);
- ret = sdio_release_irq(wilc_sdio_func);
+ sdio_claim_host(func);
+ ret = sdio_release_irq(func);
if (ret < 0) {
PRINT_ER("can't release sdio_irq, err(%d)\n", ret);
}
- sdio_release_host(wilc_sdio_func);
+ sdio_release_host(func);

PRINT_D(INIT_DBG, "wilc_sdio_disable_interrupt OUT\n");
}
diff --git a/drivers/staging/wilc1000/linux_wlan_sdio.h b/drivers/staging/wilc1000/linux_wlan_sdio.h
index df733c25e770..d7b213a7b18d 100644
--- a/drivers/staging/wilc1000/linux_wlan_sdio.h
+++ b/drivers/staging/wilc1000/linux_wlan_sdio.h
@@ -4,8 +4,8 @@ int wilc_sdio_init(void);
int wilc_sdio_cmd52(sdio_cmd52_t *cmd);
int wilc_sdio_cmd53(sdio_cmd53_t *cmd);

-int wilc_sdio_enable_interrupt(void);
-void wilc_sdio_disable_interrupt(void);
+int wilc_sdio_enable_interrupt(struct wilc *);
+void wilc_sdio_disable_interrupt(struct wilc *);
int wilc_sdio_set_max_speed(void);
int wilc_sdio_set_default_speed(void);

diff --git a/drivers/staging/wilc1000/wilc_sdio.c b/drivers/staging/wilc1000/wilc_sdio.c
index 006aae4679cb..f550ce059c15 100644
--- a/drivers/staging/wilc1000/wilc_sdio.c
+++ b/drivers/staging/wilc1000/wilc_sdio.c
@@ -929,5 +929,7 @@ const struct wilc_hif_func wilc_hif_sdio = {
.hif_sync_ext = sdio_sync_ext,
.hif_set_max_bus_speed = sdio_set_max_speed,
.hif_set_default_bus_speed = sdio_set_default_speed,
+ .enable_interrupt = wilc_sdio_enable_interrupt,
+ .disable_interrupt = wilc_sdio_disable_interrupt,
};

diff --git a/drivers/staging/wilc1000/wilc_wlan.h b/drivers/staging/wilc1000/wilc_wlan.h
index c0a5a955b1d4..44a590f80def 100644
--- a/drivers/staging/wilc1000/wilc_wlan.h
+++ b/drivers/staging/wilc1000/wilc_wlan.h
@@ -256,6 +256,8 @@ struct wilc_hif_func {
int (*hif_sync_ext)(int);
void (*hif_set_max_bus_speed)(void);
void (*hif_set_default_bus_speed)(void);
+ int (*enable_interrupt)(struct wilc *nic);
+ void (*disable_interrupt)(struct wilc *nic);
};

extern const struct wilc_hif_func wilc_hif_spi;
--
2.1.0.rc2


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