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Subject[PATCH 10/19] staging/wilc1000: unify device pointer
Date
struct wilc has two pointers to store the device, one for sdio_func
and one for spi_device. By changing the pointer to a 'struct device',
we can simplify the logic and avoid a few #ifdefs.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/staging/wilc1000/linux_wlan.c | 25 +++-----------------
drivers/staging/wilc1000/linux_wlan_sdio.c | 33 +++++----------------------
drivers/staging/wilc1000/linux_wlan_spi.c | 22 ++++++++++++++++--
drivers/staging/wilc1000/wilc_wfi_netdevice.h | 6 +----
4 files changed, 30 insertions(+), 56 deletions(-)

diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c
index 876bcfb3b546..faad01f6f2d1 100644
--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -453,19 +453,11 @@ int wilc_wlan_get_firmware(struct net_device *dev)
goto _fail_;
}

-#ifdef WILC_SDIO
- if (request_firmware(&wilc_firmware, firmware, &wilc->wilc_sdio_func->dev) != 0) {
- PRINT_ER("%s - firmare not available\n", firmware);
- ret = -1;
- goto _fail_;
- }
-#else
- if (request_firmware(&wilc_firmware, firmware, &wilc->wilc_spidev->dev) != 0) {
+ if (request_firmware(&wilc_firmware, firmware, wilc->dev) != 0) {
PRINT_ER("%s - firmare not available\n", firmware);
ret = -1;
goto _fail_;
}
-#endif
wilc->firmware = wilc_firmware;

_fail_:
@@ -1015,12 +1007,11 @@ int wilc_mac_open(struct net_device *ndev)
nic = netdev_priv(ndev);
wl = nic->wilc;

-#ifdef WILC_SPI
- if (!wl || !wl->wilc_spidev) {
+ if (!wl|| !wl->dev) {
netdev_err(ndev, "wilc1000: SPI device not ready\n");
return -ENODEV;
}
-#endif
+
nic = netdev_priv(ndev);
priv = wiphy_priv(nic->wilc_netdev->ieee80211_ptr->wiphy);
PRINT_D(INIT_DBG, "MAC OPEN[%p]\n", ndev);
@@ -1505,15 +1496,5 @@ int wilc_netdev_init(struct wilc **wilc)
nic->mac_opened = 0;
}

- #ifndef WILC_SDIO
- if (!wilc_spi_init()) {
- PRINT_ER("Can't initialize SPI\n");
- return -1;
- }
- wilc_dev->wilc_spidev = wilc_spi_dev;
- #else
- wilc_dev->wilc_sdio_func = wilc_sdio_func;
- #endif
-
return 0;
}
diff --git a/drivers/staging/wilc1000/linux_wlan_sdio.c b/drivers/staging/wilc1000/linux_wlan_sdio.c
index 06fd0e600c2a..8df69b2aff2d 100644
--- a/drivers/staging/wilc1000/linux_wlan_sdio.c
+++ b/drivers/staging/wilc1000/linux_wlan_sdio.c
@@ -21,13 +21,7 @@
#define MAX_SPEED (6 * 1000000) /* Max 50M */
#endif

-struct wilc_sdio {
- struct sdio_func *func;
- struct wilc *wilc;
-};
-
struct sdio_func *wilc_sdio_func;
-
static unsigned int sdio_default_speed;

#define SDIO_VENDOR_ID_WILC 0x0296
@@ -42,12 +36,8 @@ static const struct sdio_device_id wilc_sdio_ids[] = {
#ifndef WILC_SDIO_IRQ_GPIO
static void wilc_sdio_interrupt(struct sdio_func *func)
{
- struct wilc_sdio *wl_sdio;
-
- wl_sdio = sdio_get_drvdata(func);
-
sdio_release_host(func);
- wilc_handle_isr(wl_sdio->wilc);
+ wilc_handle_isr(sdio_get_drvdata(func));
sdio_claim_host(func);
}
#endif
@@ -55,7 +45,7 @@ static void wilc_sdio_interrupt(struct sdio_func *func)

int wilc_sdio_cmd52(sdio_cmd52_t *cmd)
{
- struct sdio_func *func = wilc_dev->wilc_sdio_func;
+ struct sdio_func *func = container_of(wilc_dev->dev, struct sdio_func, dev);
int ret;
u8 data;

@@ -87,7 +77,7 @@ int wilc_sdio_cmd52(sdio_cmd52_t *cmd)

int wilc_sdio_cmd53(sdio_cmd53_t *cmd)
{
- struct sdio_func *func = wilc_dev->wilc_sdio_func;
+ struct sdio_func *func = container_of(wilc_dev->dev, struct sdio_func, dev);
int size, ret;

sdio_claim_host(func);
@@ -118,24 +108,17 @@ int wilc_sdio_cmd53(sdio_cmd53_t *cmd)

static int linux_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
{
- struct wilc_sdio *wl_sdio;
struct wilc *wilc;

- PRINT_D(INIT_DBG, "probe function\n");
- wl_sdio = kzalloc(sizeof(struct wilc_sdio), GFP_KERNEL);
- if (!wl_sdio)
- return -ENOMEM;

PRINT_D(INIT_DBG, "Initializing netdev\n");
wilc_sdio_func = func;
if (wilc_netdev_init(&wilc)) {
PRINT_ER("Couldn't initialize netdev\n");
- kfree(wl_sdio);
return -1;
}
- wl_sdio->func = func;
- wl_sdio->wilc = wilc;
- sdio_set_drvdata(func, wl_sdio);
+ sdio_set_drvdata(func, wilc);
+ wilc->dev = &func->dev;

printk("Driver Initializing success\n");
return 0;
@@ -143,11 +126,7 @@ static int linux_sdio_probe(struct sdio_func *func, const struct sdio_device_id

static void linux_sdio_remove(struct sdio_func *func)
{
- struct wilc_sdio *wl_sdio;
-
- wl_sdio = sdio_get_drvdata(func);
- wilc_netdev_cleanup(wl_sdio->wilc);
- kfree(wl_sdio);
+ wilc_netdev_cleanup(sdio_get_drvdata(func));
}

static struct sdio_driver wilc_bus = {
diff --git a/drivers/staging/wilc1000/linux_wlan_spi.c b/drivers/staging/wilc1000/linux_wlan_spi.c
index f279a434c4c2..29dd9d4e5ff0 100644
--- a/drivers/staging/wilc1000/linux_wlan_spi.c
+++ b/drivers/staging/wilc1000/linux_wlan_spi.c
@@ -9,9 +9,10 @@
#include <linux/device.h>
#include <linux/spi/spi.h>

+#include "wilc_wfi_netdevice.h"
#include "linux_wlan_common.h"
#include "linux_wlan_spi.h"
-#include "wilc_wfi_netdevice.h"
+#include "wilc_wlan_if.h"

#define USE_SPI_DMA 0 /* johnny add */

@@ -399,8 +400,25 @@ static struct wilc *wilc;

static int __init init_wilc_spi_driver(void)
{
+ int ret;
+
wilc_debugfs_init();
- return wilc_netdev_init(&wilc);
+
+ ret = wilc_netdev_init(&wilc);
+ if (ret) {
+ wilc_debugfs_remove();
+ return ret;
+ }
+
+ if (!wilc_spi_init() || !wilc_spi_dev) {
+ PRINT_ER("Can't initialize SPI\n");
+ wilc_netdev_cleanup(wilc);
+ wilc_debugfs_remove();
+ return -ENXIO;
+ }
+ wilc_dev->dev = &wilc_spi_dev->dev;
+
+ return ret;
}
late_initcall(init_wilc_spi_driver);

diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h
index 9adac5c781ee..a099f2877b6e 100644
--- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h
+++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h
@@ -185,11 +185,7 @@ struct wilc {

const struct firmware *firmware;

-#ifdef WILC_SDIO
- struct sdio_func *wilc_sdio_func;
-#else
- struct spi_device *wilc_spidev;
-#endif
+ struct device *dev;
};

typedef struct {
--
2.1.0.rc2


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