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path: root/drivers/net/wireless/wl12xx/wl1251_spi.c
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Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1251_spi.c')
-rw-r--r--drivers/net/wireless/wl12xx/wl1251_spi.c125
1 files changed, 123 insertions, 2 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1251_spi.c b/drivers/net/wireless/wl12xx/wl1251_spi.c
index ceb237b4e579..13e7a726dea2 100644
--- a/drivers/net/wireless/wl12xx/wl1251_spi.c
+++ b/drivers/net/wireless/wl12xx/wl1251_spi.c
@@ -21,9 +21,11 @@
*
*/
+#include <linux/irq.h>
#include <linux/module.h>
#include <linux/crc7.h>
#include <linux/spi/spi.h>
+#include <linux/spi/wl12xx.h>
#include "wl1251.h"
#include "reg.h"
@@ -55,7 +57,7 @@ static void wl1251_spi_reset(struct wl1251 *wl)
wl1251_dump(DEBUG_SPI, "spi reset -> ", cmd, WSPI_INIT_CMD_LEN);
}
-static void wl1251_spi_init(struct wl1251 *wl)
+static void wl1251_spi_wake(struct wl1251 *wl)
{
u8 crc[WSPI_INIT_CMD_CRC_LEN], *cmd;
struct spi_transfer t;
@@ -112,7 +114,7 @@ static void wl1251_spi_init(struct wl1251 *wl)
static void wl1251_spi_reset_wake(struct wl1251 *wl)
{
wl1251_spi_reset(wl);
- wl1251_spi_init(wl);
+ wl1251_spi_wake(wl);
}
static void wl1251_spi_read(struct wl1251 *wl, int addr, void *buf,
@@ -191,3 +193,122 @@ const struct wl1251_if_operations wl1251_spi_ops = {
.write = wl1251_spi_write,
.reset = wl1251_spi_reset_wake,
};
+
+static int __devinit wl1251_spi_probe(struct spi_device *spi)
+{
+ struct wl12xx_platform_data *pdata;
+ struct ieee80211_hw *hw;
+ struct wl1251 *wl;
+ int ret;
+
+ pdata = spi->dev.platform_data;
+ if (!pdata) {
+ wl1251_error("no platform data");
+ return -ENODEV;
+ }
+
+ hw = wl1251_alloc_hw();
+ if (IS_ERR(hw))
+ return PTR_ERR(hw);
+
+ wl = hw->priv;
+
+ SET_IEEE80211_DEV(hw, &spi->dev);
+ dev_set_drvdata(&spi->dev, wl);
+ wl->spi = spi;
+ wl->if_ops = &wl1251_spi_ops;
+
+ /* This is the only SPI value that we need to set here, the rest
+ * comes from the board-peripherals file */
+ spi->bits_per_word = 32;
+
+ ret = spi_setup(spi);
+ if (ret < 0) {
+ wl1251_error("spi_setup failed");
+ goto out_free;
+ }
+
+ wl->set_power = pdata->set_power;
+ if (!wl->set_power) {
+ wl1251_error("set power function missing in platform data");
+ return -ENODEV;
+ }
+
+ wl->irq = spi->irq;
+ if (wl->irq < 0) {
+ wl1251_error("irq missing in platform data");
+ return -ENODEV;
+ }
+
+ ret = request_irq(wl->irq, wl1251_irq, 0, DRIVER_NAME, wl);
+ if (ret < 0) {
+ wl1251_error("request_irq() failed: %d", ret);
+ goto out_free;
+ }
+
+ set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
+
+ disable_irq(wl->irq);
+
+ ret = wl1251_init_ieee80211(wl);
+ if (ret)
+ goto out_irq;
+
+ return 0;
+
+ out_irq:
+ free_irq(wl->irq, wl);
+
+ out_free:
+ ieee80211_free_hw(hw);
+
+ return ret;
+}
+
+static int __devexit wl1251_spi_remove(struct spi_device *spi)
+{
+ struct wl1251 *wl = dev_get_drvdata(&spi->dev);
+
+ wl1251_free_hw(wl);
+
+ return 0;
+}
+
+static struct spi_driver wl1251_spi_driver = {
+ .driver = {
+ .name = "wl12xx",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ },
+
+ .probe = wl1251_spi_probe,
+ .remove = __devexit_p(wl1251_spi_remove),
+};
+
+static int __init wl1251_spi_init(void)
+{
+ int ret;
+
+ ret = spi_register_driver(&wl1251_spi_driver);
+ if (ret < 0) {
+ wl1251_error("failed to register spi driver: %d", ret);
+ goto out;
+ }
+
+out:
+ return ret;
+}
+
+static void __exit wl1251_spi_exit(void)
+{
+ spi_unregister_driver(&wl1251_spi_driver);
+
+ wl1251_notice("unloaded");
+}
+
+module_init(wl1251_spi_init);
+module_exit(wl1251_spi_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Kalle Valo <Kalle.Valo@nokia.com>");
+MODULE_AUTHOR("Luciano Coelho <luciano.coelho@nokia.com>");