wl1251: introduce wl1251_if_operations struct

Introduce an ops struct with read, write, and reset functions to
abstract away the details of the wl1251 bus interface.  Doing this
will allow SDIO to coexist with SPI by supplying its own I/O
routines.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/net/wireless/wl12xx/wl1251_main.c b/drivers/net/wireless/wl12xx/wl1251_main.c
index 953cdb4fd38f..0f30d0a62aa9 100644
--- a/drivers/net/wireless/wl12xx/wl1251_main.c
+++ b/drivers/net/wireless/wl12xx/wl1251_main.c
@@ -168,8 +168,7 @@ static int wl1251_chip_wakeup(struct wl1251 *wl)
 
         wl1251_power_on(wl);
         msleep(wl->chip.power_on_sleep);
-        wl1251_spi_reset(wl);
-        wl1251_spi_init(wl);
+        wl->if_ops->reset(wl);
 
         /* We don't need a real memory partition here, because we only want
          * to use the registers at this point. */
@@ -1192,6 +1191,8 @@ static int wl1251_init_ieee80211(struct wl1251 *wl)
         return 0;
 }
 
+extern struct wl1251_if_operations wl1251_spi_ops;
+
 #define WL1251_DEFAULT_CHANNEL 1
 static int __devinit wl1251_probe(struct spi_device *spi)
 {
@@ -1219,6 +1220,7 @@ static int __devinit wl1251_probe(struct spi_device *spi)
         wl->hw = hw;
         dev_set_drvdata(&spi->dev, wl);
         wl->spi = spi;
+        wl->if_ops = &wl1251_spi_ops;
 
         wl->data_in_count = 0;