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path: root/drivers/net/wireless/wl1251/sdio.c
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Diffstat (limited to 'drivers/net/wireless/wl1251/sdio.c')
-rw-r--r--drivers/net/wireless/wl1251/sdio.c373
1 files changed, 0 insertions, 373 deletions
diff --git a/drivers/net/wireless/wl1251/sdio.c b/drivers/net/wireless/wl1251/sdio.c
deleted file mode 100644
index 596d90ecba3..00000000000
--- a/drivers/net/wireless/wl1251/sdio.c
+++ /dev/null
@@ -1,373 +0,0 @@
-/*
- * wl12xx SDIO routines
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * Copyright (C) 2005 Texas Instruments Incorporated
- * Copyright (C) 2008 Google Inc
- * Copyright (C) 2009 Bob Copeland (me@bobcopeland.com)
- */
-#include <linux/module.h>
-#include <linux/mod_devicetable.h>
-#include <linux/mmc/sdio_func.h>
-#include <linux/mmc/sdio_ids.h>
-#include <linux/platform_device.h>
-#include <linux/wl12xx.h>
-#include <linux/irq.h>
-#include <linux/pm_runtime.h>
-
-#include "wl1251.h"
-
-#ifndef SDIO_VENDOR_ID_TI
-#define SDIO_VENDOR_ID_TI 0x104c
-#endif
-
-#ifndef SDIO_DEVICE_ID_TI_WL1251
-#define SDIO_DEVICE_ID_TI_WL1251 0x9066
-#endif
-
-struct wl1251_sdio {
- struct sdio_func *func;
- u32 elp_val;
-};
-
-static struct sdio_func *wl_to_func(struct wl1251 *wl)
-{
- struct wl1251_sdio *wl_sdio = wl->if_priv;
- return wl_sdio->func;
-}
-
-static void wl1251_sdio_interrupt(struct sdio_func *func)
-{
- struct wl1251 *wl = sdio_get_drvdata(func);
-
- wl1251_debug(DEBUG_IRQ, "IRQ");
-
- /* FIXME should be synchronous for sdio */
- ieee80211_queue_work(wl->hw, &wl->irq_work);
-}
-
-static const struct sdio_device_id wl1251_devices[] = {
- { SDIO_DEVICE(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1251) },
- {}
-};
-MODULE_DEVICE_TABLE(sdio, wl1251_devices);
-
-
-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_claim_host(func);
- ret = sdio_memcpy_fromio(func, buf, addr, len);
- if (ret)
- wl1251_error("sdio read failed (%d)", ret);
- sdio_release_host(func);
-}
-
-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_claim_host(func);
- ret = sdio_memcpy_toio(func, addr, buf, len);
- if (ret)
- wl1251_error("sdio write failed (%d)", ret);
- sdio_release_host(func);
-}
-
-static void wl1251_sdio_read_elp(struct wl1251 *wl, int addr, u32 *val)
-{
- int ret = 0;
- struct wl1251_sdio *wl_sdio = wl->if_priv;
- struct sdio_func *func = wl_sdio->func;
-
- /*
- * The hardware only supports RAW (read after write) access for
- * reading, regular sdio_readb won't work here (it interprets
- * the unused bits of CMD52 as write data even if we send read
- * request).
- */
- sdio_claim_host(func);
- *val = sdio_writeb_readb(func, wl_sdio->elp_val, 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 wl1251_sdio *wl_sdio = wl->if_priv;
- struct sdio_func *func = wl_sdio->func;
-
- sdio_claim_host(func);
- sdio_writeb(func, val, addr, &ret);
- sdio_release_host(func);
-
- if (ret)
- wl1251_error("sdio_writeb failed (%d)", ret);
- else
- wl_sdio->elp_val = val;
-}
-
-static void wl1251_sdio_reset(struct wl1251 *wl)
-{
-}
-
-static void wl1251_sdio_enable_irq(struct wl1251 *wl)
-{
- struct sdio_func *func = wl_to_func(wl);
-
- sdio_claim_host(func);
- sdio_claim_irq(func, wl1251_sdio_interrupt);
- sdio_release_host(func);
-}
-
-static void wl1251_sdio_disable_irq(struct wl1251 *wl)
-{
- struct sdio_func *func = wl_to_func(wl);
-
- sdio_claim_host(func);
- sdio_release_irq(func);
- sdio_release_host(func);
-}
-
-/* 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;
-}
-
-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 int wl1251_sdio_set_power(struct wl1251 *wl, bool enable)
-{
- struct sdio_func *func = wl_to_func(wl);
- int ret;
-
- if (enable) {
- /*
- * Power is controlled by runtime PM, but we still call board
- * callback in case it wants to do any additional setup,
- * for example enabling clock buffer for the module.
- */
- if (wl->set_power)
- wl->set_power(true);
-
- ret = pm_runtime_get_sync(&func->dev);
- if (ret < 0)
- goto out;
-
- sdio_claim_host(func);
- sdio_enable_func(func);
- sdio_release_host(func);
- } else {
- sdio_claim_host(func);
- sdio_disable_func(func);
- sdio_release_host(func);
-
- ret = pm_runtime_put_sync(&func->dev);
- if (ret < 0)
- goto out;
-
- if (wl->set_power)
- wl->set_power(false);
- }
-
-out:
- return ret;
-}
-
-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,
- .power = wl1251_sdio_set_power,
-};
-
-static int wl1251_sdio_probe(struct sdio_func *func,
- const struct sdio_device_id *id)
-{
- int ret;
- struct wl1251 *wl;
- struct ieee80211_hw *hw;
- struct wl1251_sdio *wl_sdio;
- const struct wl12xx_platform_data *wl12xx_board_data;
-
- hw = wl1251_alloc_hw();
- if (IS_ERR(hw))
- return PTR_ERR(hw);
-
- wl = hw->priv;
-
- wl_sdio = kzalloc(sizeof(*wl_sdio), GFP_KERNEL);
- if (wl_sdio == NULL) {
- ret = -ENOMEM;
- goto out_free_hw;
- }
-
- sdio_claim_host(func);
- ret = sdio_enable_func(func);
- if (ret)
- goto release;
-
- sdio_set_block_size(func, 512);
- sdio_release_host(func);
-
- SET_IEEE80211_DEV(hw, &func->dev);
- wl_sdio->func = func;
- wl->if_priv = wl_sdio;
- wl->if_ops = &wl1251_sdio_ops;
-
- wl12xx_board_data = wl12xx_get_platform_data();
- 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 out_free_irq;
-
- sdio_set_drvdata(func, wl);
-
- /* Tell PM core that we don't need the card to be powered now */
- pm_runtime_put_noidle(&func->dev);
-
- 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);
- kfree(wl_sdio);
-out_free_hw:
- wl1251_free_hw(wl);
- return ret;
-}
-
-static void __devexit wl1251_sdio_remove(struct sdio_func *func)
-{
- struct wl1251 *wl = sdio_get_drvdata(func);
- struct wl1251_sdio *wl_sdio = wl->if_priv;
-
- /* Undo decrement done above in wl1251_probe */
- pm_runtime_get_noresume(&func->dev);
-
- if (wl->irq)
- free_irq(wl->irq, wl);
- kfree(wl_sdio);
- wl1251_free_hw(wl);
-
- sdio_claim_host(func);
- sdio_release_irq(func);
- sdio_disable_func(func);
- sdio_release_host(func);
-}
-
-static int wl1251_suspend(struct device *dev)
-{
- /*
- * Tell MMC/SDIO core it's OK to power down the card
- * (if it isn't already), but not to remove it completely.
- */
- return 0;
-}
-
-static int wl1251_resume(struct device *dev)
-{
- return 0;
-}
-
-static const struct dev_pm_ops wl1251_sdio_pm_ops = {
- .suspend = wl1251_suspend,
- .resume = wl1251_resume,
-};
-
-static struct sdio_driver wl1251_sdio_driver = {
- .name = "wl1251_sdio",
- .id_table = wl1251_devices,
- .probe = wl1251_sdio_probe,
- .remove = __devexit_p(wl1251_sdio_remove),
- .drv.pm = &wl1251_sdio_pm_ops,
-};
-
-static int __init wl1251_sdio_init(void)
-{
- int err;
-
- err = sdio_register_driver(&wl1251_sdio_driver);
- if (err)
- wl1251_error("failed to register sdio driver: %d", err);
- return err;
-}
-
-static void __exit wl1251_sdio_exit(void)
-{
- sdio_unregister_driver(&wl1251_sdio_driver);
- wl1251_notice("unloaded");
-}
-
-module_init(wl1251_sdio_init);
-module_exit(wl1251_sdio_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Kalle Valo <kvalo@adurom.com>");
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