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wl1251: split spi interface into separate module 

This creates a module called wl1251_spi.ko which contains just the
SPI-specific code.  The core remains in the module wl1251.ko.

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>
This commit is contained in:
Bob Copeland 2009-08-07 13:33:34 +03:00 committed by John W. Linville
parent 8e639c0673
commit af8c78ebbf
5 changed files with 38 additions and 11 deletions
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17
drivers/net/wireless/wl12xx/Kconfig
View File

@ -7,15 +7,26 @@ menuconfig WL12XX
config WL1251
tristate "TI wl1251 support"
depends on WL12XX && SPI_MASTER && GENERIC_HARDIRQS
depends on WL12XX && GENERIC_HARDIRQS
select FW_LOADER
select CRC7
---help---
This module adds support for wireless adapters based on
TI wl1251 chipset.
If you choose to build a module, it'll be called wl1251. Say N if
unsure.
If you choose to build a module, it'll be called wl1251. Say
N if unsure.
config WL1251_SPI
tristate "TI wl1251 SPI support"
depends on WL1251 && SPI_MASTER
---help---
This module adds support for the SPI interface of adapters using
TI wl1251 chipset. Select this if your platform is using
the SPI bus.
If you choose to build a module, it'll be called wl1251_spi.
Say N if unsure.
config WL1271
tristate "TI wl1271 support"

4
drivers/net/wireless/wl12xx/Makefile
View File

@ -1,8 +1,10 @@
wl1251-objs = wl1251_main.o wl1251_spi.o wl1251_event.o \
wl1251-objs = wl1251_main.o wl1251_event.o \
wl1251_tx.o wl1251_rx.o wl1251_ps.o wl1251_cmd.o \
wl1251_acx.o wl1251_boot.o wl1251_init.o \
wl1251_ops.o wl1251_debugfs.o wl1251_io.o
obj-$(CONFIG_WL1251) += wl1251.o
obj-$(CONFIG_WL1251_SPI) += wl1251_spi.o
wl1271-objs = wl1271_main.o wl1271_spi.o wl1271_cmd.o \
wl1271_event.o wl1271_tx.o wl1271_rx.o \

2
drivers/net/wireless/wl12xx/wl1251.h
View File

@ -291,7 +291,7 @@ struct wl1251 {
struct ieee80211_hw *hw;
bool mac80211_registered;
struct spi_device *spi;
void *if_priv;
const struct wl1251_if_operations *if_ops;
void (*set_power)(bool enable);

9
drivers/net/wireless/wl12xx/wl1251_main.c
View File

@ -69,6 +69,7 @@ irqreturn_t wl1251_irq(int irq, void *cookie)
return IRQ_HANDLED;
}
EXPORT_SYMBOL_GPL(wl1251_irq);
static int wl1251_fetch_firmware(struct wl1251 *wl)
{
@ -1198,6 +1199,7 @@ int wl1251_init_ieee80211(struct wl1251 *wl)
out:
return ret;
}
EXPORT_SYMBOL_GPL(wl1251_init_ieee80211);
#define WL1251_DEFAULT_CHANNEL 1
struct ieee80211_hw *wl1251_alloc_hw(void)
@ -1270,6 +1272,7 @@ struct ieee80211_hw *wl1251_alloc_hw(void)
return hw;
}
EXPORT_SYMBOL_GPL(wl1251_alloc_hw);
int wl1251_free_hw(struct wl1251 *wl)
{
@ -1292,3 +1295,9 @@ int wl1251_free_hw(struct wl1251 *wl)
return 0;
}
EXPORT_SYMBOL_GPL(wl1251_free_hw);
MODULE_DESCRIPTION("TI wl1251 Wireles LAN Driver Core");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Kalle Valo <Kalle.Valo@nokia.com>");
MODULE_AUTHOR("Luciano Coelho <luciano.coelho@nokia.com>");

17
drivers/net/wireless/wl12xx/wl1251_spi.c
View File

@ -31,6 +31,11 @@
#include "reg.h"
#include "wl1251_spi.h"
static struct spi_device *wl_to_spi(struct wl1251 *wl)
{
return wl->if_priv;
}
static void wl1251_spi_reset(struct wl1251 *wl)
{
u8 *cmd;
@ -52,7 +57,7 @@ static void wl1251_spi_reset(struct wl1251 *wl)
t.len = WSPI_INIT_CMD_LEN;
spi_message_add_tail(&t, &m);
spi_sync(wl->spi, &m);
spi_sync(wl_to_spi(wl), &m);
wl1251_dump(DEBUG_SPI, "spi reset -> ", cmd, WSPI_INIT_CMD_LEN);
}
@ -106,7 +111,7 @@ static void wl1251_spi_wake(struct wl1251 *wl)
t.len = WSPI_INIT_CMD_LEN;
spi_message_add_tail(&t, &m);
spi_sync(wl->spi, &m);
spi_sync(wl_to_spi(wl), &m);
wl1251_dump(DEBUG_SPI, "spi init -> ", cmd, WSPI_INIT_CMD_LEN);
}
@ -149,7 +154,7 @@ static void wl1251_spi_read(struct wl1251 *wl, int addr, void *buf,
t[2].len = len;
spi_message_add_tail(&t[2], &m);
spi_sync(wl->spi, &m);
spi_sync(wl_to_spi(wl), &m);
/* FIXME: check busy words */
@ -182,13 +187,13 @@ static void wl1251_spi_write(struct wl1251 *wl, int addr, void *buf,
t[1].len = len;
spi_message_add_tail(&t[1], &m);
spi_sync(wl->spi, &m);
spi_sync(wl_to_spi(wl), &m);
wl1251_dump(DEBUG_SPI, "spi_write cmd -> ", cmd, sizeof(*cmd));
wl1251_dump(DEBUG_SPI, "spi_write buf -> ", buf, len);
}
const struct wl1251_if_operations wl1251_spi_ops = {
static const struct wl1251_if_operations wl1251_spi_ops = {
.read = wl1251_spi_read,
.write = wl1251_spi_write,
.reset = wl1251_spi_reset_wake,
@ -215,7 +220,7 @@ static int __devinit wl1251_spi_probe(struct spi_device *spi)
SET_IEEE80211_DEV(hw, &spi->dev);
dev_set_drvdata(&spi->dev, wl);
wl->spi = spi;
wl->if_priv = spi;
wl->if_ops = &wl1251_spi_ops;
/* This is the only SPI value that we need to set here, the rest