wl1271: Initial SDIO implementation (5129dffe) · Commits · e / devices / android_kernel_teracube_2e

drivers/net/wireless/wl12xx/Kconfig

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		@@ -63,3 +63,15 @@ config WL1271_SPI
		If you choose to build a module, it'll be called wl1251_spi.
		Say N if unsure.

		config WL1271_SDIO
		tristate "TI wl1271 SDIO support"
		depends on WL1271 && MMC
		---help---
		This module adds support for the SDIO interface of adapters using
		TI wl1271 chipset. Select this if your platform is using
		the SDIO bus.

		If you choose to build a module, it'll be called
		wl1271_sdio. Say N if unsure.

drivers/net/wireless/wl12xx/Makefile

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		@@ -15,3 +15,4 @@ wl1271-objs = wl1271_main.o wl1271_cmd.o wl1271_io.o \
		wl1271-$(CONFIG_NL80211_TESTMODE) += wl1271_testmode.o
		obj-$(CONFIG_WL1271) += wl1271.o
		obj-$(CONFIG_WL1271_SPI) += wl1271_spi.o
		obj-$(CONFIG_WL1271_SDIO) += wl1271_sdio.o

drivers/net/wireless/wl12xx/wl1271_sdio.c

0 → 100644

+302 −0

Original line number	Diff line number	Diff line
		/*
		* This file is part of wl1271
		*
		* Copyright (C) 2009-2010 Nokia Corporation
		*
		* Contact: Luciano Coelho <luciano.coelho@nokia.com>
		*
		* 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
		*
		*/

		#include <linux/irq.h>
		#include <linux/module.h>
		#include <linux/crc7.h>
		#include <linux/vmalloc.h>
		#include <linux/mmc/sdio_func.h>
		#include <linux/mmc/sdio_ids.h>
		#include <linux/mmc/card.h>
		#include <plat/gpio.h>

		#include "wl1271.h"
		#include "wl12xx_80211.h"
		#include "wl1271_io.h"


		#define RX71_WL1271_IRQ_GPIO 42

		#ifndef SDIO_VENDOR_ID_TI
		#define SDIO_VENDOR_ID_TI 0x0097
		#endif

		#ifndef SDIO_DEVICE_ID_TI_WL1271
		#define SDIO_DEVICE_ID_TI_WL1271 0x4076
		#endif

		static const struct sdio_device_id wl1271_devices[] = {
		{ SDIO_DEVICE(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271) },
		{}
		};
		MODULE_DEVICE_TABLE(sdio, wl1271_devices);

		static inline struct sdio_func wl_to_func(struct wl1271 wl)
		{
		return wl->if_priv;
		}

		static struct device wl1271_sdio_wl_to_dev(struct wl1271 wl)
		{
		return &(wl_to_func(wl)->dev);
		}

		static irqreturn_t wl1271_irq(int irq, void *cookie)
		{
		struct wl1271 *wl = cookie;
		unsigned long flags;

		wl1271_debug(DEBUG_IRQ, "IRQ");

		/* complete the ELP completion */
		spin_lock_irqsave(&wl->wl_lock, flags);
		if (wl->elp_compl) {
		complete(wl->elp_compl);
		wl->elp_compl = NULL;
		}

		ieee80211_queue_work(wl->hw, &wl->irq_work);
		spin_unlock_irqrestore(&wl->wl_lock, flags);

		return IRQ_HANDLED;
		}

		static void wl1271_sdio_disable_interrupts(struct wl1271 *wl)
		{
		disable_irq(wl->irq);
		}

		static void wl1271_sdio_enable_interrupts(struct wl1271 *wl)
		{
		enable_irq(wl->irq);
		}

		static void wl1271_sdio_reset(struct wl1271 *wl)
		{
		}

		static void wl1271_sdio_init(struct wl1271 *wl)
		{
		}

		static void wl1271_sdio_raw_read(struct wl1271 wl, int addr, void buf,
		size_t len, bool fixed)
		{
		int ret;
		struct sdio_func *func = wl_to_func(wl);

		sdio_claim_host(func);
		if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG_ADDR)) {
		((u8 *)buf)[0] = sdio_f0_readb(func, addr, &ret);
		wl1271_debug(DEBUG_SPI, "sdio read 52 addr 0x%x, byte 0x%02x",
		addr, ((u8 *)buf)[0]);
		} else {
		if (fixed)
		ret = sdio_readsb(func, buf, addr, len);
		else
		ret = sdio_memcpy_fromio(func, buf, addr, len);

		wl1271_debug(DEBUG_SPI, "sdio read 53 addr 0x%x, %d bytes",
		addr, len);
		wl1271_dump_ascii(DEBUG_SPI, "data: ", buf, len);
		}

		if (ret)
		wl1271_error("sdio read failed (%d)", ret);

		sdio_release_host(func);
		}

		static void wl1271_sdio_raw_write(struct wl1271 wl, int addr, void buf,
		size_t len, bool fixed)
		{
		int ret;
		struct sdio_func *func = wl_to_func(wl);

		sdio_claim_host(func);
		if (unlikely(addr == HW_ACCESS_ELP_CTRL_REG_ADDR)) {
		sdio_f0_writeb(func, ((u8 *)buf)[0], addr, &ret);
		wl1271_debug(DEBUG_SPI, "sdio write 52 addr 0x%x, byte 0x%02x",
		addr, ((u8 *)buf)[0]);
		} else {
		wl1271_debug(DEBUG_SPI, "sdio write 53 addr 0x%x, %d bytes",
		addr, len);
		wl1271_dump_ascii(DEBUG_SPI, "data: ", buf, len);

		if (fixed)
		ret = sdio_writesb(func, addr, buf, len);
		else
		ret = sdio_memcpy_toio(func, addr, buf, len);
		}
		if (ret)
		wl1271_error("sdio write failed (%d)", ret);

		sdio_release_host(func);
		}

		static struct wl1271_if_operations sdio_ops = {
		.read = wl1271_sdio_raw_read,
		.write = wl1271_sdio_raw_write,
		.reset = wl1271_sdio_reset,
		.init = wl1271_sdio_init,
		.dev = wl1271_sdio_wl_to_dev,
		.enable_irq = wl1271_sdio_enable_interrupts,
		.disable_irq = wl1271_sdio_disable_interrupts
		};

		static void wl1271_sdio_set_power(bool enable)
		{
		}

		static int __devinit wl1271_probe(struct sdio_func *func,
		const struct sdio_device_id *id)
		{
		struct ieee80211_hw *hw;
		struct wl1271 *wl;
		int ret;

		/* We are only able to handle the wlan function */
		if (func->num != 0x02)
		return -ENODEV;

		hw = wl1271_alloc_hw();
		if (IS_ERR(hw))
		return PTR_ERR(hw);

		wl = hw->priv;

		wl->if_priv = func;
		wl->if_ops = &sdio_ops;

		wl->set_power = wl1271_sdio_set_power;

		/* Grab access to FN0 for ELP reg. */
		func->card->quirks \|= MMC_QUIRK_LENIENT_FN0;

		wl->irq = gpio_to_irq(RX71_WL1271_IRQ_GPIO);
		if (wl->irq < 0) {
		ret = wl->irq;
		wl1271_error("could not get irq!");
		goto out_free;
		}

		ret = request_irq(wl->irq, wl1271_irq, 0, DRIVER_NAME, wl);
		if (ret < 0) {
		wl1271_error("request_irq() failed: %d", ret);
		goto out_free;
		}

		set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);

		disable_irq(wl->irq);

		ret = wl1271_init_ieee80211(wl);
		if (ret)
		goto out_irq;

		ret = wl1271_register_hw(wl);
		if (ret)
		goto out_irq;

		sdio_claim_host(func);
		ret = sdio_enable_func(func);
		if (ret)
		goto out_release;

		sdio_release_host(func);

		wl1271_notice("initialized");

		return 0;

		out_release:
		sdio_release_host(func);

		out_irq:
		free_irq(wl->irq, wl);


		out_free:
		ieee80211_free_hw(hw);

		return ret;
		}

		static void __devexit wl1271_remove(struct sdio_func *func)
		{
		struct wl1271 *wl = sdio_get_drvdata(func);

		sdio_claim_host(func);
		sdio_disable_func(func);
		sdio_release_host(func);
		ieee80211_unregister_hw(wl->hw);

		free_irq(wl->irq, wl);

		kfree(wl->target_mem_map);
		vfree(wl->fw);
		wl->fw = NULL;
		kfree(wl->nvs);
		wl->nvs = NULL;

		kfree(wl->fw_status);
		kfree(wl->tx_res_if);

		ieee80211_free_hw(wl->hw);
		}

		static struct sdio_driver wl1271_sdio_driver = {
		.name = "wl1271",
		.id_table = wl1271_devices,
		.probe = wl1271_probe,
		.remove = __devexit_p(wl1271_remove),
		};

		static int __init wl1271_init(void)
		{
		int ret;

		ret = sdio_register_driver(&wl1271_sdio_driver);
		if (ret < 0) {
		wl1271_error("failed to register sdio driver: %d", ret);
		goto out;
		}

		out:
		return ret;
		}

		static void __exit wl1271_exit(void)
		{
		sdio_unregister_driver(&wl1271_sdio_driver);

		wl1271_notice("unloaded");
		}

		module_init(wl1271_init);
		module_exit(wl1271_exit);

		MODULE_LICENSE("GPL");
		MODULE_AUTHOR("Luciano Coelho <luciano.coelho@nokia.com>");
		MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
		MODULE_FIRMWARE(WL1271_FW_NAME);