* Copyright (C) 2009 Bob Copeland (me@bobcopeland.com)
*/
#include <linux/module.h>
-#include <linux/crc7.h>
#include <linux/mod_devicetable.h>
-#include <linux/irq.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio_ids.h>
#include <linux/platform_device.h>
+#include <linux/spi/wl12xx.h>
+#include <linux/irq.h>
#include "wl1251.h"
-#include "wl12xx_80211.h"
-#include "reg.h"
-#include "wl1251_ps.h"
-#include "wl1251_io.h"
-#include "wl1251_tx.h"
-#include "wl1251_debugfs.h"
#ifndef SDIO_VENDOR_ID_TI
#define SDIO_VENDOR_ID_TI 0x104c
#define SDIO_DEVICE_ID_TI_WL1251 0x9066
#endif
+static struct wl12xx_platform_data *wl12xx_board_data;
+
static struct sdio_func *wl_to_func(struct wl1251 *wl)
{
return wl->if_priv;
MODULE_DEVICE_TABLE(sdio, wl1251_devices);
-void wl1251_sdio_read(struct wl1251 *wl, int addr, void *buf, size_t len)
+static void wl1251_sdio_read(struct wl1251 *wl, int addr,
+ void *buf, size_t len)
{
int ret;
struct sdio_func *func = wl_to_func(wl);
sdio_release_host(func);
}
-void wl1251_sdio_write(struct wl1251 *wl, int addr, void *buf, size_t len)
+static void wl1251_sdio_write(struct wl1251 *wl, int addr,
+ void *buf, size_t len)
{
int ret;
struct sdio_func *func = wl_to_func(wl);
sdio_release_host(func);
}
-void wl1251_sdio_reset(struct wl1251 *wl)
+static void wl1251_sdio_read_elp(struct wl1251 *wl, int addr, u32 *val)
+{
+ int ret = 0;
+ struct sdio_func *func = wl_to_func(wl);
+
+ sdio_claim_host(func);
+ *val = sdio_readb(func, addr, &ret);
+ sdio_release_host(func);
+
+ if (ret)
+ wl1251_error("sdio_readb failed (%d)", ret);
+}
+
+static void wl1251_sdio_write_elp(struct wl1251 *wl, int addr, u32 val)
+{
+ int ret = 0;
+ struct sdio_func *func = wl_to_func(wl);
+
+ sdio_claim_host(func);
+ sdio_writeb(func, val, addr, &ret);
+ sdio_release_host(func);
+
+ if (ret)
+ wl1251_error("sdio_writeb failed (%d)", ret);
+}
+
+static void wl1251_sdio_reset(struct wl1251 *wl)
{
}
sdio_release_host(func);
}
-void wl1251_sdio_set_power(bool enable)
+/* Interrupts when using dedicated WLAN_IRQ pin */
+static irqreturn_t wl1251_line_irq(int irq, void *cookie)
{
+ struct wl1251 *wl = cookie;
+
+ ieee80211_queue_work(wl->hw, &wl->irq_work);
+
+ return IRQ_HANDLED;
}
-struct wl1251_if_operations wl1251_sdio_ops = {
+static void wl1251_enable_line_irq(struct wl1251 *wl)
+{
+ return enable_irq(wl->irq);
+}
+
+static void wl1251_disable_line_irq(struct wl1251 *wl)
+{
+ return disable_irq(wl->irq);
+}
+
+static void wl1251_sdio_set_power(bool enable)
+{
+}
+
+static struct wl1251_if_operations wl1251_sdio_ops = {
.read = wl1251_sdio_read,
.write = wl1251_sdio_write,
+ .write_elp = wl1251_sdio_write_elp,
+ .read_elp = wl1251_sdio_read_elp,
.reset = wl1251_sdio_reset,
- .enable_irq = wl1251_sdio_enable_irq,
- .disable_irq = wl1251_sdio_disable_irq,
};
-int wl1251_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
+static int wl1251_platform_probe(struct platform_device *pdev)
+{
+ if (pdev->id != -1) {
+ wl1251_error("can only handle single device");
+ return -ENODEV;
+ }
+
+ wl12xx_board_data = pdev->dev.platform_data;
+ return 0;
+}
+
+/*
+ * Dummy platform_driver for passing platform_data to this driver,
+ * until we have a way to pass this through SDIO subsystem or
+ * some other way.
+ */
+static struct platform_driver wl1251_platform_driver = {
+ .driver = {
+ .name = "wl1251_data",
+ .owner = THIS_MODULE,
+ },
+ .probe = wl1251_platform_probe,
+};
+
+static int wl1251_sdio_probe(struct sdio_func *func,
+ const struct sdio_device_id *id)
{
int ret;
struct wl1251 *wl;
goto release;
sdio_set_block_size(func, 512);
+ sdio_release_host(func);
SET_IEEE80211_DEV(hw, &func->dev);
wl->if_priv = func;
wl->if_ops = &wl1251_sdio_ops;
wl->set_power = wl1251_sdio_set_power;
- sdio_release_host(func);
+ if (wl12xx_board_data != NULL) {
+ wl->set_power = wl12xx_board_data->set_power;
+ wl->irq = wl12xx_board_data->irq;
+ wl->use_eeprom = wl12xx_board_data->use_eeprom;
+ }
+
+ if (wl->irq) {
+ ret = request_irq(wl->irq, wl1251_line_irq, 0, "wl1251", wl);
+ if (ret < 0) {
+ wl1251_error("request_irq() failed: %d", ret);
+ goto disable;
+ }
+
+ set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
+ disable_irq(wl->irq);
+
+ wl1251_sdio_ops.enable_irq = wl1251_enable_line_irq;
+ wl1251_sdio_ops.disable_irq = wl1251_disable_line_irq;
+
+ wl1251_info("using dedicated interrupt line");
+ } else {
+ wl1251_sdio_ops.enable_irq = wl1251_sdio_enable_irq;
+ wl1251_sdio_ops.disable_irq = wl1251_sdio_disable_irq;
+
+ wl1251_info("using SDIO interrupt");
+ }
+
ret = wl1251_init_ieee80211(wl);
if (ret)
- goto disable;
+ goto out_free_irq;
sdio_set_drvdata(func, wl);
return ret;
+out_free_irq:
+ if (wl->irq)
+ free_irq(wl->irq, wl);
disable:
sdio_claim_host(func);
sdio_disable_func(func);
release:
sdio_release_host(func);
+ wl1251_free_hw(wl);
return ret;
}
{
struct wl1251 *wl = sdio_get_drvdata(func);
+ if (wl->irq)
+ free_irq(wl->irq, wl);
wl1251_free_hw(wl);
sdio_claim_host(func);
{
int err;
+ err = platform_driver_register(&wl1251_platform_driver);
+ if (err) {
+ wl1251_error("failed to register platform driver: %d", err);
+ return err;
+ }
+
err = sdio_register_driver(&wl1251_sdio_driver);
if (err)
wl1251_error("failed to register sdio driver: %d", err);
static void __exit wl1251_sdio_exit(void)
{
sdio_unregister_driver(&wl1251_sdio_driver);
+ platform_driver_unregister(&wl1251_platform_driver);
wl1251_notice("unloaded");
}
module_exit(wl1251_sdio_exit);
MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Kalle Valo <Kalle.Valo@nokia.com>");
-MODULE_AUTHOR("Luciano Coelho <luciano.coelho@nokia.com>");
+MODULE_AUTHOR("Kalle Valo <kalle.valo@nokia.com>");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff