2011-03-22 01:00:50 +00:00
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/*
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* Marvell Wireless LAN device driver: SDIO specific handling
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*
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* Copyright (C) 2011, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available by writing to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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*/
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#include <linux/firmware.h>
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#include "decl.h"
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#include "ioctl.h"
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#include "util.h"
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#include "fw.h"
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#include "main.h"
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#include "wmm.h"
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#include "11n.h"
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#include "sdio.h"
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#define SDIO_VERSION "1.0"
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static struct mwifiex_if_ops sdio_ops;
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static struct semaphore add_remove_card_sem;
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/*
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* SDIO probe.
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*
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* This function probes an mwifiex device and registers it. It allocates
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* the card structure, enables SDIO function number and initiates the
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* device registration and initialization procedure by adding a logical
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* interface.
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*/
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static int
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mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
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{
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int ret = 0;
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struct sdio_mmc_card *card = NULL;
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pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n",
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func->vendor, func->device, func->class, func->num);
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card = kzalloc(sizeof(struct sdio_mmc_card), GFP_KERNEL);
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if (!card) {
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pr_err("%s: failed to alloc memory\n", __func__);
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return -ENOMEM;
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}
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card->func = func;
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func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
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sdio_claim_host(func);
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ret = sdio_enable_func(func);
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sdio_release_host(func);
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if (ret) {
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pr_err("%s: failed to enable function\n", __func__);
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return -EIO;
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}
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if (mwifiex_add_card(card, &add_remove_card_sem, &sdio_ops)) {
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pr_err("%s: add card failed\n", __func__);
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kfree(card);
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sdio_claim_host(func);
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ret = sdio_disable_func(func);
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sdio_release_host(func);
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ret = -1;
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}
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return ret;
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}
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/*
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* SDIO remove.
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*
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* This function removes the interface and frees up the card structure.
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*/
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static void
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mwifiex_sdio_remove(struct sdio_func *func)
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{
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struct sdio_mmc_card *card;
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pr_debug("info: SDIO func num=%d\n", func->num);
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if (func) {
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card = sdio_get_drvdata(func);
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if (card) {
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mwifiex_remove_card(card->adapter,
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&add_remove_card_sem);
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kfree(card);
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}
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}
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}
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/*
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* SDIO suspend.
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*
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* Kernel needs to suspend all functions separately. Therefore all
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* registered functions must have drivers with suspend and resume
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* methods. Failing that the kernel simply removes the whole card.
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*
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* If already not suspended, this function allocates and sends a host
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* sleep activate request to the firmware and turns off the traffic.
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*/
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static int mwifiex_sdio_suspend(struct device *dev)
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{
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struct sdio_func *func = dev_to_sdio_func(dev);
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struct sdio_mmc_card *card;
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struct mwifiex_adapter *adapter = NULL;
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mmc_pm_flag_t pm_flag = 0;
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int hs_actived = 0;
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int i;
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int ret = 0;
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if (func) {
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pm_flag = sdio_get_host_pm_caps(func);
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pr_debug("cmd: %s: suspend: PM flag = 0x%x\n",
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sdio_func_id(func), pm_flag);
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if (!(pm_flag & MMC_PM_KEEP_POWER)) {
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pr_err("%s: cannot remain alive while host is"
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" suspended\n", sdio_func_id(func));
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return -ENOSYS;
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}
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card = sdio_get_drvdata(func);
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if (!card || !card->adapter) {
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pr_err("suspend: invalid card or adapter\n");
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return 0;
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}
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} else {
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pr_err("suspend: sdio_func is not specified\n");
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return 0;
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}
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adapter = card->adapter;
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/* Enable the Host Sleep */
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hs_actived = mwifiex_enable_hs(adapter);
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if (hs_actived) {
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pr_debug("cmd: suspend with MMC_PM_KEEP_POWER\n");
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ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
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}
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/* Indicate device suspended */
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adapter->is_suspended = true;
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for (i = 0; i < adapter->priv_num; i++)
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netif_carrier_off(adapter->priv[i]->netdev);
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return ret;
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}
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/*
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* SDIO resume.
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*
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* Kernel needs to suspend all functions separately. Therefore all
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* registered functions must have drivers with suspend and resume
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* methods. Failing that the kernel simply removes the whole card.
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*
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* If already not resumed, this function turns on the traffic and
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* sends a host sleep cancel request to the firmware.
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*/
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static int mwifiex_sdio_resume(struct device *dev)
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{
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struct sdio_func *func = dev_to_sdio_func(dev);
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struct sdio_mmc_card *card;
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struct mwifiex_adapter *adapter = NULL;
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mmc_pm_flag_t pm_flag = 0;
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int i;
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if (func) {
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pm_flag = sdio_get_host_pm_caps(func);
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card = sdio_get_drvdata(func);
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if (!card || !card->adapter) {
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pr_err("resume: invalid card or adapter\n");
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return 0;
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}
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} else {
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pr_err("resume: sdio_func is not specified\n");
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return 0;
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}
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adapter = card->adapter;
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if (!adapter->is_suspended) {
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dev_warn(adapter->dev, "device already resumed\n");
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return 0;
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}
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adapter->is_suspended = false;
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for (i = 0; i < adapter->priv_num; i++)
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if (adapter->priv[i]->media_connected)
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netif_carrier_on(adapter->priv[i]->netdev);
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/* Disable Host Sleep */
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mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
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2011-04-14 00:27:06 +00:00
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MWIFIEX_ASYNC_CMD);
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2011-03-22 01:00:50 +00:00
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return 0;
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}
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/* Device ID for SD8787 */
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#define SDIO_DEVICE_ID_MARVELL_8787 (0x9119)
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/* WLAN IDs */
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static const struct sdio_device_id mwifiex_ids[] = {
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{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787)},
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{},
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};
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MODULE_DEVICE_TABLE(sdio, mwifiex_ids);
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static const struct dev_pm_ops mwifiex_sdio_pm_ops = {
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.suspend = mwifiex_sdio_suspend,
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.resume = mwifiex_sdio_resume,
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};
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static struct sdio_driver mwifiex_sdio = {
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.name = "mwifiex_sdio",
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.id_table = mwifiex_ids,
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.probe = mwifiex_sdio_probe,
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.remove = mwifiex_sdio_remove,
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.drv = {
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.owner = THIS_MODULE,
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.pm = &mwifiex_sdio_pm_ops,
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}
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};
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/*
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* This function writes data into SDIO card register.
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*/
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static int
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mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u32 data)
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{
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struct sdio_mmc_card *card = adapter->card;
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int ret = -1;
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sdio_claim_host(card->func);
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sdio_writeb(card->func, (u8) data, reg, &ret);
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sdio_release_host(card->func);
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return ret;
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}
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/*
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* This function reads data from SDIO card register.
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*/
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static int
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mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u32 *data)
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{
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struct sdio_mmc_card *card = adapter->card;
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int ret = -1;
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u8 val;
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sdio_claim_host(card->func);
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val = sdio_readb(card->func, reg, &ret);
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sdio_release_host(card->func);
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*data = val;
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return ret;
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}
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/*
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* This function writes multiple data into SDIO card memory.
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*
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* This does not work in suspended mode.
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*/
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static int
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mwifiex_write_data_sync(struct mwifiex_adapter *adapter,
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2011-04-14 00:27:08 +00:00
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u8 *buffer, u32 pkt_len, u32 port)
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2011-03-22 01:00:50 +00:00
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{
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struct sdio_mmc_card *card = adapter->card;
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int ret = -1;
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u8 blk_mode =
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(port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE;
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u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
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u32 blk_cnt =
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(blk_mode ==
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BLOCK_MODE) ? (pkt_len /
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MWIFIEX_SDIO_BLOCK_SIZE) : pkt_len;
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u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
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if (adapter->is_suspended) {
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dev_err(adapter->dev,
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"%s: not allowed while suspended\n", __func__);
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return -1;
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}
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sdio_claim_host(card->func);
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if (!sdio_writesb(card->func, ioport, buffer, blk_cnt * blk_size))
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ret = 0;
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sdio_release_host(card->func);
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return ret;
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}
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/*
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* This function reads multiple data from SDIO card memory.
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*/
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2011-04-14 00:27:08 +00:00
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static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *buffer,
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u32 len, u32 port, u8 claim)
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2011-03-22 01:00:50 +00:00
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{
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struct sdio_mmc_card *card = adapter->card;
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int ret = -1;
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u8 blk_mode =
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(port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE;
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u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
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u32 blk_cnt =
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(blk_mode ==
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BLOCK_MODE) ? (len / MWIFIEX_SDIO_BLOCK_SIZE) : len;
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u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
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if (claim)
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sdio_claim_host(card->func);
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if (!sdio_readsb(card->func, buffer, ioport, blk_cnt * blk_size))
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ret = 0;
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if (claim)
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sdio_release_host(card->func);
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return ret;
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}
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/*
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* This function wakes up the card.
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*
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* A host power up command is written to the card configuration
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* register to wake up the card.
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*/
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static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
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{
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int ret;
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dev_dbg(adapter->dev, "event: wakeup device...\n");
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ret = mwifiex_write_reg(adapter, CONFIGURATION_REG, HOST_POWER_UP);
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return ret;
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}
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/*
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* This function is called after the card has woken up.
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*
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* The card configuration register is reset.
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*/
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static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
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{
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int ret;
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dev_dbg(adapter->dev, "cmd: wakeup device completed\n");
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ret = mwifiex_write_reg(adapter, CONFIGURATION_REG, 0);
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return ret;
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}
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/*
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* This function initializes the IO ports.
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*
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|
|
* The following operations are performed -
|
|
|
|
* - Read the IO ports (0, 1 and 2)
|
|
|
|
* - Set host interrupt Reset-To-Read to clear
|
|
|
|
* - Set auto re-enable interrupt
|
|
|
|
*/
|
|
|
|
static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter)
|
|
|
|
{
|
|
|
|
u32 reg;
|
|
|
|
|
|
|
|
adapter->ioport = 0;
|
|
|
|
|
|
|
|
/* Read the IO port */
|
|
|
|
if (!mwifiex_read_reg(adapter, IO_PORT_0_REG, ®))
|
|
|
|
adapter->ioport |= (reg & 0xff);
|
|
|
|
else
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (!mwifiex_read_reg(adapter, IO_PORT_1_REG, ®))
|
|
|
|
adapter->ioport |= ((reg & 0xff) << 8);
|
|
|
|
else
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (!mwifiex_read_reg(adapter, IO_PORT_2_REG, ®))
|
|
|
|
adapter->ioport |= ((reg & 0xff) << 16);
|
|
|
|
else
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
pr_debug("info: SDIO FUNC1 IO port: %#x\n", adapter->ioport);
|
|
|
|
|
|
|
|
/* Set Host interrupt reset to read to clear */
|
|
|
|
if (!mwifiex_read_reg(adapter, HOST_INT_RSR_REG, ®))
|
|
|
|
mwifiex_write_reg(adapter, HOST_INT_RSR_REG,
|
|
|
|
reg | SDIO_INT_MASK);
|
|
|
|
else
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
/* Dnld/Upld ready set to auto reset */
|
|
|
|
if (!mwifiex_read_reg(adapter, CARD_MISC_CFG_REG, ®))
|
|
|
|
mwifiex_write_reg(adapter, CARD_MISC_CFG_REG,
|
|
|
|
reg | AUTO_RE_ENABLE_INT);
|
|
|
|
else
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function sends data to the card.
|
|
|
|
*/
|
|
|
|
static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter,
|
|
|
|
u8 *payload, u32 pkt_len, u32 port)
|
|
|
|
{
|
|
|
|
u32 i = 0;
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
do {
|
2011-04-14 00:27:08 +00:00
|
|
|
ret = mwifiex_write_data_sync(adapter, payload, pkt_len, port);
|
2011-03-22 01:00:50 +00:00
|
|
|
if (ret) {
|
|
|
|
i++;
|
|
|
|
dev_err(adapter->dev, "host_to_card, write iomem"
|
|
|
|
" (%d) failed: %d\n", i, ret);
|
|
|
|
if (mwifiex_write_reg(adapter,
|
|
|
|
CONFIGURATION_REG, 0x04))
|
|
|
|
dev_err(adapter->dev, "write CFG reg failed\n");
|
|
|
|
|
|
|
|
ret = -1;
|
|
|
|
if (i > MAX_WRITE_IOMEM_RETRY)
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
} while (ret == -1);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function gets the read port.
|
|
|
|
*
|
|
|
|
* If control port bit is set in MP read bitmap, the control port
|
|
|
|
* is returned, otherwise the current read port is returned and
|
|
|
|
* the value is increased (provided it does not reach the maximum
|
|
|
|
* limit, in which case it is reset to 1)
|
|
|
|
*/
|
|
|
|
static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
|
|
|
|
{
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
u16 rd_bitmap = card->mp_rd_bitmap;
|
|
|
|
|
|
|
|
dev_dbg(adapter->dev, "data: mp_rd_bitmap=0x%04x\n", rd_bitmap);
|
|
|
|
|
|
|
|
if (!(rd_bitmap & (CTRL_PORT_MASK | DATA_PORT_MASK)))
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (card->mp_rd_bitmap & CTRL_PORT_MASK) {
|
|
|
|
card->mp_rd_bitmap &= (u16) (~CTRL_PORT_MASK);
|
|
|
|
*port = CTRL_PORT;
|
|
|
|
dev_dbg(adapter->dev, "data: port=%d mp_rd_bitmap=0x%04x\n",
|
|
|
|
*port, card->mp_rd_bitmap);
|
|
|
|
} else {
|
|
|
|
if (card->mp_rd_bitmap & (1 << card->curr_rd_port)) {
|
|
|
|
card->mp_rd_bitmap &=
|
|
|
|
(u16) (~(1 << card->curr_rd_port));
|
|
|
|
*port = card->curr_rd_port;
|
|
|
|
|
|
|
|
if (++card->curr_rd_port == MAX_PORT)
|
|
|
|
card->curr_rd_port = 1;
|
|
|
|
} else {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev_dbg(adapter->dev,
|
|
|
|
"data: port=%d mp_rd_bitmap=0x%04x -> 0x%04x\n",
|
|
|
|
*port, rd_bitmap, card->mp_rd_bitmap);
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function gets the write port for data.
|
|
|
|
*
|
|
|
|
* The current write port is returned if available and the value is
|
|
|
|
* increased (provided it does not reach the maximum limit, in which
|
|
|
|
* case it is reset to 1)
|
|
|
|
*/
|
|
|
|
static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u8 *port)
|
|
|
|
{
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
u16 wr_bitmap = card->mp_wr_bitmap;
|
|
|
|
|
|
|
|
dev_dbg(adapter->dev, "data: mp_wr_bitmap=0x%04x\n", wr_bitmap);
|
|
|
|
|
|
|
|
if (!(wr_bitmap & card->mp_data_port_mask))
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) {
|
|
|
|
card->mp_wr_bitmap &= (u16) (~(1 << card->curr_wr_port));
|
|
|
|
*port = card->curr_wr_port;
|
|
|
|
if (++card->curr_wr_port == card->mp_end_port)
|
|
|
|
card->curr_wr_port = 1;
|
|
|
|
} else {
|
|
|
|
adapter->data_sent = true;
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (*port == CTRL_PORT) {
|
|
|
|
dev_err(adapter->dev, "invalid data port=%d cur port=%d"
|
|
|
|
" mp_wr_bitmap=0x%04x -> 0x%04x\n",
|
|
|
|
*port, card->curr_wr_port, wr_bitmap,
|
|
|
|
card->mp_wr_bitmap);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev_dbg(adapter->dev, "data: port=%d mp_wr_bitmap=0x%04x -> 0x%04x\n",
|
|
|
|
*port, wr_bitmap, card->mp_wr_bitmap);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function polls the card status.
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits)
|
|
|
|
{
|
|
|
|
u32 tries;
|
|
|
|
u32 cs = 0;
|
|
|
|
|
|
|
|
for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
|
|
|
|
if (mwifiex_read_reg(adapter, CARD_STATUS_REG, &cs))
|
|
|
|
break;
|
|
|
|
else if ((cs & bits) == bits)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
udelay(10);
|
|
|
|
}
|
|
|
|
|
|
|
|
dev_err(adapter->dev, "poll card status failed, tries = %d\n",
|
|
|
|
tries);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function reads the firmware status.
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat)
|
|
|
|
{
|
|
|
|
u32 fws0 = 0, fws1 = 0;
|
|
|
|
|
|
|
|
if (mwifiex_read_reg(adapter, CARD_FW_STATUS0_REG, &fws0))
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (mwifiex_read_reg(adapter, CARD_FW_STATUS1_REG, &fws1))
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
*dat = (u16) ((fws1 << 8) | fws0);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function disables the host interrupt.
|
|
|
|
*
|
|
|
|
* The host interrupt mask is read, the disable bit is reset and
|
|
|
|
* written back to the card host interrupt mask register.
|
|
|
|
*/
|
|
|
|
static int mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter)
|
|
|
|
{
|
|
|
|
u32 host_int_mask = 0;
|
|
|
|
|
|
|
|
/* Read back the host_int_mask register */
|
|
|
|
if (mwifiex_read_reg(adapter, HOST_INT_MASK_REG, &host_int_mask))
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
/* Update with the mask and write back to the register */
|
|
|
|
host_int_mask &= ~HOST_INT_DISABLE;
|
|
|
|
|
|
|
|
if (mwifiex_write_reg(adapter, HOST_INT_MASK_REG, host_int_mask)) {
|
|
|
|
dev_err(adapter->dev, "disable host interrupt failed\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function enables the host interrupt.
|
|
|
|
*
|
|
|
|
* The host interrupt enable mask is written to the card
|
|
|
|
* host interrupt mask register.
|
|
|
|
*/
|
|
|
|
static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter)
|
|
|
|
{
|
|
|
|
/* Simply write the mask to the register */
|
|
|
|
if (mwifiex_write_reg(adapter, HOST_INT_MASK_REG, HOST_INT_ENABLE)) {
|
|
|
|
dev_err(adapter->dev, "enable host interrupt failed\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function sends a data buffer to the card.
|
|
|
|
*/
|
|
|
|
static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter,
|
|
|
|
u32 *type, u8 *buffer,
|
|
|
|
u32 npayload, u32 ioport)
|
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
u32 nb;
|
|
|
|
|
|
|
|
if (!buffer) {
|
|
|
|
dev_err(adapter->dev, "%s: buffer is NULL\n", __func__);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2011-04-14 00:27:08 +00:00
|
|
|
ret = mwifiex_read_data_sync(adapter, buffer, npayload, ioport, 1);
|
2011-03-22 01:00:50 +00:00
|
|
|
|
|
|
|
if (ret) {
|
|
|
|
dev_err(adapter->dev, "%s: read iomem failed: %d\n", __func__,
|
|
|
|
ret);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
nb = le16_to_cpu(*(__le16 *) (buffer));
|
|
|
|
if (nb > npayload) {
|
|
|
|
dev_err(adapter->dev, "%s: invalid packet, nb=%d, npayload=%d\n",
|
|
|
|
__func__, nb, npayload);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
*type = le16_to_cpu(*(__le16 *) (buffer + 2));
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function downloads the firmware to the card.
|
|
|
|
*
|
|
|
|
* Firmware is downloaded to the card in blocks. Every block download
|
|
|
|
* is tested for CRC errors, and retried a number of times before
|
|
|
|
* returning failure.
|
|
|
|
*/
|
|
|
|
static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
|
|
|
|
struct mwifiex_fw_image *fw)
|
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
u8 *firmware = fw->fw_buf;
|
|
|
|
u32 firmware_len = fw->fw_len;
|
|
|
|
u32 offset = 0;
|
|
|
|
u32 base0, base1;
|
|
|
|
u8 *fwbuf;
|
|
|
|
u16 len = 0;
|
|
|
|
u32 txlen = 0, tx_blocks = 0, tries = 0;
|
|
|
|
u32 i = 0;
|
|
|
|
|
|
|
|
if (!firmware_len) {
|
|
|
|
dev_err(adapter->dev, "firmware image not found!"
|
|
|
|
" Terminating download\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev_dbg(adapter->dev, "info: downloading FW image (%d bytes)\n",
|
|
|
|
firmware_len);
|
|
|
|
|
|
|
|
/* Assume that the allocated buffer is 8-byte aligned */
|
|
|
|
fwbuf = kzalloc(MWIFIEX_UPLD_SIZE, GFP_KERNEL);
|
|
|
|
if (!fwbuf) {
|
|
|
|
dev_err(adapter->dev, "unable to alloc buffer for firmware."
|
|
|
|
" Terminating download\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Perform firmware data transfer */
|
|
|
|
do {
|
|
|
|
/* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY
|
|
|
|
bits */
|
|
|
|
ret = mwifiex_sdio_poll_card_status(adapter, CARD_IO_READY |
|
|
|
|
DN_LD_CARD_RDY);
|
|
|
|
if (ret) {
|
|
|
|
dev_err(adapter->dev, "FW download with helper:"
|
|
|
|
" poll status timeout @ %d\n", offset);
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* More data? */
|
|
|
|
if (offset >= firmware_len)
|
|
|
|
break;
|
|
|
|
|
|
|
|
for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
|
|
|
|
ret = mwifiex_read_reg(adapter, HOST_F1_RD_BASE_0,
|
|
|
|
&base0);
|
|
|
|
if (ret) {
|
|
|
|
dev_err(adapter->dev, "dev BASE0 register read"
|
|
|
|
" failed: base0=0x%04X(%d). Terminating "
|
|
|
|
"download\n", base0, base0);
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
ret = mwifiex_read_reg(adapter, HOST_F1_RD_BASE_1,
|
|
|
|
&base1);
|
|
|
|
if (ret) {
|
|
|
|
dev_err(adapter->dev, "dev BASE1 register read"
|
|
|
|
" failed: base1=0x%04X(%d). Terminating "
|
|
|
|
"download\n", base1, base1);
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
len = (u16) (((base1 & 0xff) << 8) | (base0 & 0xff));
|
|
|
|
|
|
|
|
if (len)
|
|
|
|
break;
|
|
|
|
|
|
|
|
udelay(10);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!len) {
|
|
|
|
break;
|
|
|
|
} else if (len > MWIFIEX_UPLD_SIZE) {
|
|
|
|
dev_err(adapter->dev, "FW download failed @ %d,"
|
|
|
|
" invalid length %d\n", offset, len);
|
|
|
|
ret = -1;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
txlen = len;
|
|
|
|
|
|
|
|
if (len & BIT(0)) {
|
|
|
|
i++;
|
|
|
|
if (i > MAX_WRITE_IOMEM_RETRY) {
|
|
|
|
dev_err(adapter->dev, "FW download failed @"
|
|
|
|
" %d, over max retry count\n", offset);
|
|
|
|
ret = -1;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
dev_err(adapter->dev, "CRC indicated by the helper:"
|
|
|
|
" len = 0x%04X, txlen = %d\n", len, txlen);
|
|
|
|
len &= ~BIT(0);
|
|
|
|
/* Setting this to 0 to resend from same offset */
|
|
|
|
txlen = 0;
|
|
|
|
} else {
|
|
|
|
i = 0;
|
|
|
|
|
|
|
|
/* Set blocksize to transfer - checking for last
|
|
|
|
block */
|
|
|
|
if (firmware_len - offset < txlen)
|
|
|
|
txlen = firmware_len - offset;
|
|
|
|
|
|
|
|
tx_blocks = (txlen + MWIFIEX_SDIO_BLOCK_SIZE -
|
|
|
|
1) / MWIFIEX_SDIO_BLOCK_SIZE;
|
|
|
|
|
|
|
|
/* Copy payload to buffer */
|
|
|
|
memmove(fwbuf, &firmware[offset], txlen);
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = mwifiex_write_data_sync(adapter, fwbuf, tx_blocks *
|
|
|
|
MWIFIEX_SDIO_BLOCK_SIZE,
|
2011-04-14 00:27:08 +00:00
|
|
|
adapter->ioport);
|
2011-03-22 01:00:50 +00:00
|
|
|
if (ret) {
|
|
|
|
dev_err(adapter->dev, "FW download, write iomem (%d)"
|
|
|
|
" failed @ %d\n", i, offset);
|
|
|
|
if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04))
|
|
|
|
dev_err(adapter->dev, "write CFG reg failed\n");
|
|
|
|
|
|
|
|
ret = -1;
|
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
|
|
|
offset += txlen;
|
|
|
|
} while (true);
|
|
|
|
|
|
|
|
dev_dbg(adapter->dev, "info: FW download over, size %d bytes\n",
|
|
|
|
offset);
|
|
|
|
|
|
|
|
ret = 0;
|
|
|
|
done:
|
|
|
|
kfree(fwbuf);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function checks the firmware status in card.
|
|
|
|
*
|
|
|
|
* The winner interface is also determined by this function.
|
|
|
|
*/
|
|
|
|
static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
|
|
|
|
u32 poll_num, int *winner)
|
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
u16 firmware_stat;
|
|
|
|
u32 tries;
|
|
|
|
u32 winner_status;
|
|
|
|
|
|
|
|
/* Wait for firmware initialization event */
|
|
|
|
for (tries = 0; tries < poll_num; tries++) {
|
|
|
|
ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat);
|
|
|
|
if (ret)
|
|
|
|
continue;
|
|
|
|
if (firmware_stat == FIRMWARE_READY) {
|
|
|
|
ret = 0;
|
|
|
|
break;
|
|
|
|
} else {
|
|
|
|
mdelay(100);
|
|
|
|
ret = -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (winner && ret) {
|
|
|
|
if (mwifiex_read_reg
|
|
|
|
(adapter, CARD_FW_STATUS0_REG, &winner_status))
|
|
|
|
winner_status = 0;
|
|
|
|
|
|
|
|
if (winner_status)
|
|
|
|
*winner = 0;
|
|
|
|
else
|
|
|
|
*winner = 1;
|
|
|
|
}
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function reads the interrupt status from card.
|
|
|
|
*/
|
|
|
|
static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
|
|
|
|
{
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
u32 sdio_ireg = 0;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
if (mwifiex_read_data_sync(adapter, card->mp_regs, MAX_MP_REGS,
|
2011-04-14 00:27:08 +00:00
|
|
|
REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK,
|
2011-03-22 01:00:50 +00:00
|
|
|
0)) {
|
|
|
|
dev_err(adapter->dev, "read mp_regs failed\n");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
sdio_ireg = card->mp_regs[HOST_INTSTATUS_REG];
|
|
|
|
if (sdio_ireg) {
|
|
|
|
/*
|
|
|
|
* DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
|
|
|
|
* Clear the interrupt status register
|
|
|
|
*/
|
|
|
|
dev_dbg(adapter->dev, "int: sdio_ireg = %#x\n", sdio_ireg);
|
|
|
|
spin_lock_irqsave(&adapter->int_lock, flags);
|
|
|
|
adapter->int_status |= sdio_ireg;
|
|
|
|
spin_unlock_irqrestore(&adapter->int_lock, flags);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* SDIO interrupt handler.
|
|
|
|
*
|
|
|
|
* This function reads the interrupt status from firmware and assigns
|
|
|
|
* the main process in workqueue which will handle the interrupt.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
mwifiex_sdio_interrupt(struct sdio_func *func)
|
|
|
|
{
|
|
|
|
struct mwifiex_adapter *adapter;
|
|
|
|
struct sdio_mmc_card *card;
|
|
|
|
|
|
|
|
card = sdio_get_drvdata(func);
|
|
|
|
if (!card || !card->adapter) {
|
|
|
|
pr_debug("int: func=%p card=%p adapter=%p\n",
|
|
|
|
func, card, card ? card->adapter : NULL);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
adapter = card->adapter;
|
|
|
|
|
|
|
|
if (adapter->surprise_removed)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP)
|
|
|
|
adapter->ps_state = PS_STATE_AWAKE;
|
|
|
|
|
|
|
|
mwifiex_interrupt_status(adapter);
|
|
|
|
queue_work(adapter->workqueue, &adapter->main_work);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function decodes a received packet.
|
|
|
|
*
|
|
|
|
* Based on the type, the packet is treated as either a data, or
|
|
|
|
* a command response, or an event, and the correct handler
|
|
|
|
* function is invoked.
|
|
|
|
*/
|
|
|
|
static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter,
|
|
|
|
struct sk_buff *skb, u32 upld_typ)
|
|
|
|
{
|
|
|
|
u8 *cmd_buf;
|
|
|
|
|
|
|
|
skb_pull(skb, INTF_HEADER_LEN);
|
|
|
|
|
|
|
|
switch (upld_typ) {
|
|
|
|
case MWIFIEX_TYPE_DATA:
|
|
|
|
dev_dbg(adapter->dev, "info: --- Rx: Data packet ---\n");
|
|
|
|
mwifiex_handle_rx_packet(adapter, skb);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MWIFIEX_TYPE_CMD:
|
|
|
|
dev_dbg(adapter->dev, "info: --- Rx: Cmd Response ---\n");
|
|
|
|
/* take care of curr_cmd = NULL case */
|
|
|
|
if (!adapter->curr_cmd) {
|
|
|
|
cmd_buf = adapter->upld_buf;
|
|
|
|
|
|
|
|
if (adapter->ps_state == PS_STATE_SLEEP_CFM)
|
|
|
|
mwifiex_process_sleep_confirm_resp(adapter,
|
|
|
|
skb->data, skb->len);
|
|
|
|
|
|
|
|
memcpy(cmd_buf, skb->data, min_t(u32,
|
|
|
|
MWIFIEX_SIZE_OF_CMD_BUFFER, skb->len));
|
|
|
|
|
|
|
|
dev_kfree_skb_any(skb);
|
|
|
|
} else {
|
|
|
|
adapter->cmd_resp_received = true;
|
|
|
|
adapter->curr_cmd->resp_skb = skb;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MWIFIEX_TYPE_EVENT:
|
|
|
|
dev_dbg(adapter->dev, "info: --- Rx: Event ---\n");
|
|
|
|
adapter->event_cause = *(u32 *) skb->data;
|
|
|
|
|
|
|
|
skb_pull(skb, MWIFIEX_EVENT_HEADER_LEN);
|
|
|
|
|
|
|
|
if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE))
|
|
|
|
memcpy(adapter->event_body, skb->data, skb->len);
|
|
|
|
|
|
|
|
/* event cause has been saved to adapter->event_cause */
|
|
|
|
adapter->event_received = true;
|
|
|
|
adapter->event_skb = skb;
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
dev_err(adapter->dev, "unknown upload type %#x\n", upld_typ);
|
|
|
|
dev_kfree_skb_any(skb);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function transfers received packets from card to driver, performing
|
|
|
|
* aggregation if required.
|
|
|
|
*
|
|
|
|
* For data received on control port, or if aggregation is disabled, the
|
|
|
|
* received buffers are uploaded as separate packets. However, if aggregation
|
|
|
|
* is enabled and required, the buffers are copied onto an aggregation buffer,
|
|
|
|
* provided there is space left, processed and finally uploaded.
|
|
|
|
*/
|
|
|
|
static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
|
|
|
|
struct sk_buff *skb, u8 port)
|
|
|
|
{
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
s32 f_do_rx_aggr = 0;
|
|
|
|
s32 f_do_rx_cur = 0;
|
|
|
|
s32 f_aggr_cur = 0;
|
|
|
|
struct sk_buff *skb_deaggr;
|
|
|
|
u32 pind = 0;
|
|
|
|
u32 pkt_len, pkt_type = 0;
|
|
|
|
u8 *curr_ptr;
|
|
|
|
u32 rx_len = skb->len;
|
|
|
|
|
|
|
|
if (port == CTRL_PORT) {
|
|
|
|
/* Read the command Resp without aggr */
|
|
|
|
dev_dbg(adapter->dev, "info: %s: no aggregation for cmd "
|
|
|
|
"response\n", __func__);
|
|
|
|
|
|
|
|
f_do_rx_cur = 1;
|
|
|
|
goto rx_curr_single;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!card->mpa_rx.enabled) {
|
|
|
|
dev_dbg(adapter->dev, "info: %s: rx aggregation disabled\n",
|
|
|
|
__func__);
|
|
|
|
|
|
|
|
f_do_rx_cur = 1;
|
|
|
|
goto rx_curr_single;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (card->mp_rd_bitmap & (~((u16) CTRL_PORT_MASK))) {
|
|
|
|
/* Some more data RX pending */
|
|
|
|
dev_dbg(adapter->dev, "info: %s: not last packet\n", __func__);
|
|
|
|
|
|
|
|
if (MP_RX_AGGR_IN_PROGRESS(card)) {
|
|
|
|
if (MP_RX_AGGR_BUF_HAS_ROOM(card, skb->len)) {
|
|
|
|
f_aggr_cur = 1;
|
|
|
|
} else {
|
|
|
|
/* No room in Aggr buf, do rx aggr now */
|
|
|
|
f_do_rx_aggr = 1;
|
|
|
|
f_do_rx_cur = 1;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/* Rx aggr not in progress */
|
|
|
|
f_aggr_cur = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
} else {
|
|
|
|
/* No more data RX pending */
|
|
|
|
dev_dbg(adapter->dev, "info: %s: last packet\n", __func__);
|
|
|
|
|
|
|
|
if (MP_RX_AGGR_IN_PROGRESS(card)) {
|
|
|
|
f_do_rx_aggr = 1;
|
|
|
|
if (MP_RX_AGGR_BUF_HAS_ROOM(card, skb->len))
|
|
|
|
f_aggr_cur = 1;
|
|
|
|
else
|
|
|
|
/* No room in Aggr buf, do rx aggr now */
|
|
|
|
f_do_rx_cur = 1;
|
|
|
|
} else {
|
|
|
|
f_do_rx_cur = 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (f_aggr_cur) {
|
|
|
|
dev_dbg(adapter->dev, "info: current packet aggregation\n");
|
|
|
|
/* Curr pkt can be aggregated */
|
|
|
|
MP_RX_AGGR_SETUP(card, skb, port);
|
|
|
|
|
|
|
|
if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) ||
|
|
|
|
MP_RX_AGGR_PORT_LIMIT_REACHED(card)) {
|
|
|
|
dev_dbg(adapter->dev, "info: %s: aggregated packet "
|
|
|
|
"limit reached\n", __func__);
|
|
|
|
/* No more pkts allowed in Aggr buf, rx it */
|
|
|
|
f_do_rx_aggr = 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (f_do_rx_aggr) {
|
|
|
|
/* do aggr RX now */
|
|
|
|
dev_dbg(adapter->dev, "info: do_rx_aggr: num of packets: %d\n",
|
|
|
|
card->mpa_rx.pkt_cnt);
|
|
|
|
|
|
|
|
if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf,
|
|
|
|
card->mpa_rx.buf_len,
|
|
|
|
(adapter->ioport | 0x1000 |
|
|
|
|
(card->mpa_rx.ports << 4)) +
|
2011-04-14 00:27:08 +00:00
|
|
|
card->mpa_rx.start_port, 1))
|
2011-03-22 01:00:50 +00:00
|
|
|
return -1;
|
|
|
|
|
|
|
|
curr_ptr = card->mpa_rx.buf;
|
|
|
|
|
|
|
|
for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) {
|
|
|
|
|
|
|
|
/* get curr PKT len & type */
|
|
|
|
pkt_len = *(u16 *) &curr_ptr[0];
|
|
|
|
pkt_type = *(u16 *) &curr_ptr[2];
|
|
|
|
|
|
|
|
/* copy pkt to deaggr buf */
|
|
|
|
skb_deaggr = card->mpa_rx.skb_arr[pind];
|
|
|
|
|
|
|
|
if ((pkt_type == MWIFIEX_TYPE_DATA) && (pkt_len <=
|
|
|
|
card->mpa_rx.len_arr[pind])) {
|
|
|
|
|
|
|
|
memcpy(skb_deaggr->data, curr_ptr, pkt_len);
|
|
|
|
|
|
|
|
skb_trim(skb_deaggr, pkt_len);
|
|
|
|
|
|
|
|
/* Process de-aggr packet */
|
|
|
|
mwifiex_decode_rx_packet(adapter, skb_deaggr,
|
|
|
|
pkt_type);
|
|
|
|
} else {
|
|
|
|
dev_err(adapter->dev, "wrong aggr pkt:"
|
|
|
|
" type=%d len=%d max_len=%d\n",
|
|
|
|
pkt_type, pkt_len,
|
|
|
|
card->mpa_rx.len_arr[pind]);
|
|
|
|
dev_kfree_skb_any(skb_deaggr);
|
|
|
|
}
|
|
|
|
curr_ptr += card->mpa_rx.len_arr[pind];
|
|
|
|
}
|
|
|
|
MP_RX_AGGR_BUF_RESET(card);
|
|
|
|
}
|
|
|
|
|
|
|
|
rx_curr_single:
|
|
|
|
if (f_do_rx_cur) {
|
|
|
|
dev_dbg(adapter->dev, "info: RX: port: %d, rx_len: %d\n",
|
|
|
|
port, rx_len);
|
|
|
|
|
|
|
|
if (mwifiex_sdio_card_to_host(adapter, &pkt_type,
|
|
|
|
skb->data, skb->len,
|
|
|
|
adapter->ioport + port))
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
mwifiex_decode_rx_packet(adapter, skb, pkt_type);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function checks the current interrupt status.
|
|
|
|
*
|
|
|
|
* The following interrupts are checked and handled by this function -
|
|
|
|
* - Data sent
|
|
|
|
* - Command sent
|
|
|
|
* - Packets received
|
|
|
|
*
|
|
|
|
* Since the firmware does not generate download ready interrupt if the
|
|
|
|
* port updated is command port only, command sent interrupt checking
|
|
|
|
* should be done manually, and for every SDIO interrupt.
|
|
|
|
*
|
|
|
|
* In case of Rx packets received, the packets are uploaded from card to
|
|
|
|
* host and processed accordingly.
|
|
|
|
*/
|
|
|
|
static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
|
|
|
|
{
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
int ret = 0;
|
|
|
|
u8 sdio_ireg;
|
|
|
|
struct sk_buff *skb = NULL;
|
|
|
|
u8 port = CTRL_PORT;
|
|
|
|
u32 len_reg_l, len_reg_u;
|
|
|
|
u32 rx_blocks;
|
|
|
|
u16 rx_len;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&adapter->int_lock, flags);
|
|
|
|
sdio_ireg = adapter->int_status;
|
|
|
|
adapter->int_status = 0;
|
|
|
|
spin_unlock_irqrestore(&adapter->int_lock, flags);
|
|
|
|
|
|
|
|
if (!sdio_ireg)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
if (sdio_ireg & DN_LD_HOST_INT_STATUS) {
|
|
|
|
card->mp_wr_bitmap = ((u16) card->mp_regs[WR_BITMAP_U]) << 8;
|
|
|
|
card->mp_wr_bitmap |= (u16) card->mp_regs[WR_BITMAP_L];
|
|
|
|
dev_dbg(adapter->dev, "int: DNLD: wr_bitmap=0x%04x\n",
|
|
|
|
card->mp_wr_bitmap);
|
|
|
|
if (adapter->data_sent &&
|
|
|
|
(card->mp_wr_bitmap & card->mp_data_port_mask)) {
|
|
|
|
dev_dbg(adapter->dev,
|
|
|
|
"info: <--- Tx DONE Interrupt --->\n");
|
|
|
|
adapter->data_sent = false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* As firmware will not generate download ready interrupt if the port
|
|
|
|
updated is command port only, cmd_sent should be done for any SDIO
|
|
|
|
interrupt. */
|
|
|
|
if (adapter->cmd_sent) {
|
|
|
|
/* Check if firmware has attach buffer at command port and
|
|
|
|
update just that in wr_bit_map. */
|
|
|
|
card->mp_wr_bitmap |=
|
|
|
|
(u16) card->mp_regs[WR_BITMAP_L] & CTRL_PORT_MASK;
|
|
|
|
if (card->mp_wr_bitmap & CTRL_PORT_MASK)
|
|
|
|
adapter->cmd_sent = false;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev_dbg(adapter->dev, "info: cmd_sent=%d data_sent=%d\n",
|
|
|
|
adapter->cmd_sent, adapter->data_sent);
|
|
|
|
if (sdio_ireg & UP_LD_HOST_INT_STATUS) {
|
|
|
|
card->mp_rd_bitmap = ((u16) card->mp_regs[RD_BITMAP_U]) << 8;
|
|
|
|
card->mp_rd_bitmap |= (u16) card->mp_regs[RD_BITMAP_L];
|
|
|
|
dev_dbg(adapter->dev, "int: UPLD: rd_bitmap=0x%04x\n",
|
|
|
|
card->mp_rd_bitmap);
|
|
|
|
|
|
|
|
while (true) {
|
|
|
|
ret = mwifiex_get_rd_port(adapter, &port);
|
|
|
|
if (ret) {
|
|
|
|
dev_dbg(adapter->dev,
|
|
|
|
"info: no more rd_port available\n");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
len_reg_l = RD_LEN_P0_L + (port << 1);
|
|
|
|
len_reg_u = RD_LEN_P0_U + (port << 1);
|
|
|
|
rx_len = ((u16) card->mp_regs[len_reg_u]) << 8;
|
|
|
|
rx_len |= (u16) card->mp_regs[len_reg_l];
|
|
|
|
dev_dbg(adapter->dev, "info: RX: port=%d rx_len=%u\n",
|
|
|
|
port, rx_len);
|
|
|
|
rx_blocks =
|
|
|
|
(rx_len + MWIFIEX_SDIO_BLOCK_SIZE -
|
|
|
|
1) / MWIFIEX_SDIO_BLOCK_SIZE;
|
|
|
|
if (rx_len <= INTF_HEADER_LEN
|
|
|
|
|| (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
|
|
|
|
MWIFIEX_RX_DATA_BUF_SIZE) {
|
|
|
|
dev_err(adapter->dev, "invalid rx_len=%d\n",
|
|
|
|
rx_len);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
|
|
|
|
|
|
|
|
skb = dev_alloc_skb(rx_len);
|
|
|
|
|
|
|
|
if (!skb) {
|
|
|
|
dev_err(adapter->dev, "%s: failed to alloc skb",
|
|
|
|
__func__);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
skb_put(skb, rx_len);
|
|
|
|
|
|
|
|
dev_dbg(adapter->dev, "info: rx_len = %d skb->len = %d\n",
|
|
|
|
rx_len, skb->len);
|
|
|
|
|
|
|
|
if (mwifiex_sdio_card_to_host_mp_aggr(adapter, skb,
|
|
|
|
port)) {
|
|
|
|
u32 cr = 0;
|
|
|
|
|
|
|
|
dev_err(adapter->dev, "card_to_host_mpa failed:"
|
|
|
|
" int status=%#x\n", sdio_ireg);
|
|
|
|
if (mwifiex_read_reg(adapter,
|
|
|
|
CONFIGURATION_REG, &cr))
|
|
|
|
dev_err(adapter->dev,
|
|
|
|
"read CFG reg failed\n");
|
|
|
|
|
|
|
|
dev_dbg(adapter->dev,
|
|
|
|
"info: CFG reg val = %d\n", cr);
|
|
|
|
if (mwifiex_write_reg(adapter,
|
|
|
|
CONFIGURATION_REG,
|
|
|
|
(cr | 0x04)))
|
|
|
|
dev_err(adapter->dev,
|
|
|
|
"write CFG reg failed\n");
|
|
|
|
|
|
|
|
dev_dbg(adapter->dev, "info: write success\n");
|
|
|
|
if (mwifiex_read_reg(adapter,
|
|
|
|
CONFIGURATION_REG, &cr))
|
|
|
|
dev_err(adapter->dev,
|
|
|
|
"read CFG reg failed\n");
|
|
|
|
|
|
|
|
dev_dbg(adapter->dev,
|
|
|
|
"info: CFG reg val =%x\n", cr);
|
|
|
|
dev_kfree_skb_any(skb);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function aggregates transmission buffers in driver and downloads
|
|
|
|
* the aggregated packet to card.
|
|
|
|
*
|
|
|
|
* The individual packets are aggregated by copying into an aggregation
|
|
|
|
* buffer and then downloaded to the card. Previous unsent packets in the
|
|
|
|
* aggregation buffer are pre-copied first before new packets are added.
|
|
|
|
* Aggregation is done till there is space left in the aggregation buffer,
|
|
|
|
* or till new packets are available.
|
|
|
|
*
|
|
|
|
* The function will only download the packet to the card when aggregation
|
|
|
|
* stops, otherwise it will just aggregate the packet in aggregation buffer
|
|
|
|
* and return.
|
|
|
|
*/
|
|
|
|
static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
|
|
|
|
u8 *payload, u32 pkt_len, u8 port,
|
|
|
|
u32 next_pkt_len)
|
|
|
|
{
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
int ret = 0;
|
|
|
|
s32 f_send_aggr_buf = 0;
|
|
|
|
s32 f_send_cur_buf = 0;
|
|
|
|
s32 f_precopy_cur_buf = 0;
|
|
|
|
s32 f_postcopy_cur_buf = 0;
|
|
|
|
|
|
|
|
if ((!card->mpa_tx.enabled) || (port == CTRL_PORT)) {
|
|
|
|
dev_dbg(adapter->dev, "info: %s: tx aggregation disabled\n",
|
|
|
|
__func__);
|
|
|
|
|
|
|
|
f_send_cur_buf = 1;
|
|
|
|
goto tx_curr_single;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (next_pkt_len) {
|
|
|
|
/* More pkt in TX queue */
|
|
|
|
dev_dbg(adapter->dev, "info: %s: more packets in queue.\n",
|
|
|
|
__func__);
|
|
|
|
|
|
|
|
if (MP_TX_AGGR_IN_PROGRESS(card)) {
|
|
|
|
if (!MP_TX_AGGR_PORT_LIMIT_REACHED(card) &&
|
|
|
|
MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) {
|
|
|
|
f_precopy_cur_buf = 1;
|
|
|
|
|
|
|
|
if (!(card->mp_wr_bitmap &
|
|
|
|
(1 << card->curr_wr_port))
|
|
|
|
|| !MP_TX_AGGR_BUF_HAS_ROOM(
|
|
|
|
card, next_pkt_len))
|
|
|
|
f_send_aggr_buf = 1;
|
|
|
|
} else {
|
|
|
|
/* No room in Aggr buf, send it */
|
|
|
|
f_send_aggr_buf = 1;
|
|
|
|
|
|
|
|
if (MP_TX_AGGR_PORT_LIMIT_REACHED(card) ||
|
|
|
|
!(card->mp_wr_bitmap &
|
|
|
|
(1 << card->curr_wr_port)))
|
|
|
|
f_send_cur_buf = 1;
|
|
|
|
else
|
|
|
|
f_postcopy_cur_buf = 1;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)
|
|
|
|
&& (card->mp_wr_bitmap & (1 << card->curr_wr_port)))
|
|
|
|
f_precopy_cur_buf = 1;
|
|
|
|
else
|
|
|
|
f_send_cur_buf = 1;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/* Last pkt in TX queue */
|
|
|
|
dev_dbg(adapter->dev, "info: %s: Last packet in Tx Queue.\n",
|
|
|
|
__func__);
|
|
|
|
|
|
|
|
if (MP_TX_AGGR_IN_PROGRESS(card)) {
|
|
|
|
/* some packs in Aggr buf already */
|
|
|
|
f_send_aggr_buf = 1;
|
|
|
|
|
|
|
|
if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len))
|
|
|
|
f_precopy_cur_buf = 1;
|
|
|
|
else
|
|
|
|
/* No room in Aggr buf, send it */
|
|
|
|
f_send_cur_buf = 1;
|
|
|
|
} else {
|
|
|
|
f_send_cur_buf = 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (f_precopy_cur_buf) {
|
|
|
|
dev_dbg(adapter->dev, "data: %s: precopy current buffer\n",
|
|
|
|
__func__);
|
|
|
|
MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
|
|
|
|
|
|
|
|
if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) ||
|
|
|
|
MP_TX_AGGR_PORT_LIMIT_REACHED(card))
|
|
|
|
/* No more pkts allowed in Aggr buf, send it */
|
|
|
|
f_send_aggr_buf = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (f_send_aggr_buf) {
|
|
|
|
dev_dbg(adapter->dev, "data: %s: send aggr buffer: %d %d\n",
|
|
|
|
__func__,
|
|
|
|
card->mpa_tx.start_port, card->mpa_tx.ports);
|
|
|
|
ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf,
|
|
|
|
card->mpa_tx.buf_len,
|
|
|
|
(adapter->ioport | 0x1000 |
|
|
|
|
(card->mpa_tx.ports << 4)) +
|
|
|
|
card->mpa_tx.start_port);
|
|
|
|
|
|
|
|
MP_TX_AGGR_BUF_RESET(card);
|
|
|
|
}
|
|
|
|
|
|
|
|
tx_curr_single:
|
|
|
|
if (f_send_cur_buf) {
|
|
|
|
dev_dbg(adapter->dev, "data: %s: send current buffer %d\n",
|
|
|
|
__func__, port);
|
|
|
|
ret = mwifiex_write_data_to_card(adapter, payload, pkt_len,
|
|
|
|
adapter->ioport + port);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (f_postcopy_cur_buf) {
|
|
|
|
dev_dbg(adapter->dev, "data: %s: postcopy current buffer\n",
|
|
|
|
__func__);
|
|
|
|
MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function downloads data from driver to card.
|
|
|
|
*
|
|
|
|
* Both commands and data packets are transferred to the card by this
|
|
|
|
* function.
|
|
|
|
*
|
|
|
|
* This function adds the SDIO specific header to the front of the buffer
|
|
|
|
* before transferring. The header contains the length of the packet and
|
|
|
|
* the type. The firmware handles the packets based upon this set type.
|
|
|
|
*/
|
|
|
|
static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter,
|
|
|
|
u8 type, u8 *payload, u32 pkt_len,
|
|
|
|
struct mwifiex_tx_param *tx_param)
|
|
|
|
{
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
int ret = 0;
|
|
|
|
u32 buf_block_len;
|
|
|
|
u32 blk_size;
|
|
|
|
u8 port = CTRL_PORT;
|
|
|
|
|
|
|
|
/* Allocate buffer and copy payload */
|
|
|
|
blk_size = MWIFIEX_SDIO_BLOCK_SIZE;
|
|
|
|
buf_block_len = (pkt_len + blk_size - 1) / blk_size;
|
|
|
|
*(u16 *) &payload[0] = (u16) pkt_len;
|
|
|
|
*(u16 *) &payload[2] = type;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This is SDIO specific header
|
|
|
|
* u16 length,
|
|
|
|
* u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1,
|
|
|
|
* MWIFIEX_TYPE_EVENT = 3)
|
|
|
|
*/
|
|
|
|
if (type == MWIFIEX_TYPE_DATA) {
|
|
|
|
ret = mwifiex_get_wr_port_data(adapter, &port);
|
|
|
|
if (ret) {
|
|
|
|
dev_err(adapter->dev, "%s: no wr_port available\n",
|
|
|
|
__func__);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
adapter->cmd_sent = true;
|
|
|
|
/* Type must be MWIFIEX_TYPE_CMD */
|
|
|
|
|
|
|
|
if (pkt_len <= INTF_HEADER_LEN ||
|
|
|
|
pkt_len > MWIFIEX_UPLD_SIZE)
|
|
|
|
dev_err(adapter->dev, "%s: payload=%p, nb=%d\n",
|
|
|
|
__func__, payload, pkt_len);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Transfer data to card */
|
|
|
|
pkt_len = buf_block_len * blk_size;
|
|
|
|
|
|
|
|
if (tx_param)
|
|
|
|
ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
|
|
|
|
port, tx_param->next_pkt_len);
|
|
|
|
else
|
|
|
|
ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
|
|
|
|
port, 0);
|
|
|
|
|
|
|
|
if (ret) {
|
|
|
|
if (type == MWIFIEX_TYPE_CMD)
|
|
|
|
adapter->cmd_sent = false;
|
|
|
|
if (type == MWIFIEX_TYPE_DATA)
|
|
|
|
adapter->data_sent = false;
|
|
|
|
} else {
|
|
|
|
if (type == MWIFIEX_TYPE_DATA) {
|
|
|
|
if (!(card->mp_wr_bitmap & (1 << card->curr_wr_port)))
|
|
|
|
adapter->data_sent = true;
|
|
|
|
else
|
|
|
|
adapter->data_sent = false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function allocates the MPA Tx and Rx buffers.
|
|
|
|
*/
|
|
|
|
static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter *adapter,
|
|
|
|
u32 mpa_tx_buf_size, u32 mpa_rx_buf_size)
|
|
|
|
{
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
card->mpa_tx.buf = kzalloc(mpa_tx_buf_size, GFP_KERNEL);
|
|
|
|
if (!card->mpa_tx.buf) {
|
|
|
|
dev_err(adapter->dev, "could not alloc buffer for MP-A TX\n");
|
|
|
|
ret = -1;
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
card->mpa_tx.buf_size = mpa_tx_buf_size;
|
|
|
|
|
|
|
|
card->mpa_rx.buf = kzalloc(mpa_rx_buf_size, GFP_KERNEL);
|
|
|
|
if (!card->mpa_rx.buf) {
|
|
|
|
dev_err(adapter->dev, "could not alloc buffer for MP-A RX\n");
|
|
|
|
ret = -1;
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
card->mpa_rx.buf_size = mpa_rx_buf_size;
|
|
|
|
|
|
|
|
error:
|
|
|
|
if (ret) {
|
|
|
|
kfree(card->mpa_tx.buf);
|
|
|
|
kfree(card->mpa_rx.buf);
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function unregisters the SDIO device.
|
|
|
|
*
|
|
|
|
* The SDIO IRQ is released, the function is disabled and driver
|
|
|
|
* data is set to null.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
|
|
|
|
{
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
|
|
|
|
if (adapter->card) {
|
|
|
|
/* Release the SDIO IRQ */
|
|
|
|
sdio_claim_host(card->func);
|
|
|
|
sdio_release_irq(card->func);
|
|
|
|
sdio_disable_func(card->func);
|
|
|
|
sdio_release_host(card->func);
|
|
|
|
sdio_set_drvdata(card->func, NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function registers the SDIO device.
|
|
|
|
*
|
|
|
|
* SDIO IRQ is claimed, block size is set and driver data is initialized.
|
|
|
|
*/
|
|
|
|
static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
|
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
struct sdio_func *func = card->func;
|
|
|
|
|
|
|
|
/* save adapter pointer in card */
|
|
|
|
card->adapter = adapter;
|
|
|
|
|
|
|
|
sdio_claim_host(func);
|
|
|
|
|
|
|
|
/* Request the SDIO IRQ */
|
|
|
|
ret = sdio_claim_irq(func, mwifiex_sdio_interrupt);
|
|
|
|
if (ret) {
|
|
|
|
pr_err("claim irq failed: ret=%d\n", ret);
|
|
|
|
goto disable_func;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Set block size */
|
|
|
|
ret = sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE);
|
|
|
|
if (ret) {
|
|
|
|
pr_err("cannot set SDIO block size\n");
|
|
|
|
ret = -1;
|
|
|
|
goto release_irq;
|
|
|
|
}
|
|
|
|
|
|
|
|
sdio_release_host(func);
|
|
|
|
sdio_set_drvdata(func, card);
|
|
|
|
|
|
|
|
adapter->dev = &func->dev;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
release_irq:
|
|
|
|
sdio_release_irq(func);
|
|
|
|
disable_func:
|
|
|
|
sdio_disable_func(func);
|
|
|
|
sdio_release_host(func);
|
|
|
|
adapter->card = NULL;
|
|
|
|
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function initializes the SDIO driver.
|
|
|
|
*
|
|
|
|
* The following initializations steps are followed -
|
|
|
|
* - Read the Host interrupt status register to acknowledge
|
|
|
|
* the first interrupt got from bootloader
|
|
|
|
* - Disable host interrupt mask register
|
|
|
|
* - Get SDIO port
|
|
|
|
* - Get revision ID
|
|
|
|
* - Initialize SDIO variables in card
|
|
|
|
* - Allocate MP registers
|
|
|
|
* - Allocate MPA Tx and Rx buffers
|
|
|
|
*/
|
|
|
|
static int mwifiex_init_sdio(struct mwifiex_adapter *adapter)
|
|
|
|
{
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
int ret;
|
|
|
|
u32 sdio_ireg = 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Read the HOST_INT_STATUS_REG for ACK the first interrupt got
|
|
|
|
* from the bootloader. If we don't do this we get a interrupt
|
|
|
|
* as soon as we register the irq.
|
|
|
|
*/
|
|
|
|
mwifiex_read_reg(adapter, HOST_INTSTATUS_REG, &sdio_ireg);
|
|
|
|
|
|
|
|
/* Disable host interrupt mask register for SDIO */
|
|
|
|
mwifiex_sdio_disable_host_int(adapter);
|
|
|
|
|
|
|
|
/* Get SDIO ioport */
|
|
|
|
mwifiex_init_sdio_ioport(adapter);
|
|
|
|
|
|
|
|
/* Get revision ID */
|
|
|
|
#define REV_ID_REG 0x5c
|
|
|
|
mwifiex_read_reg(adapter, REV_ID_REG, &adapter->revision_id);
|
|
|
|
|
|
|
|
/* Initialize SDIO variables in card */
|
|
|
|
card->mp_rd_bitmap = 0;
|
|
|
|
card->mp_wr_bitmap = 0;
|
|
|
|
card->curr_rd_port = 1;
|
|
|
|
card->curr_wr_port = 1;
|
|
|
|
|
|
|
|
card->mp_data_port_mask = DATA_PORT_MASK;
|
|
|
|
|
|
|
|
card->mpa_tx.buf_len = 0;
|
|
|
|
card->mpa_tx.pkt_cnt = 0;
|
|
|
|
card->mpa_tx.start_port = 0;
|
|
|
|
|
|
|
|
card->mpa_tx.enabled = 0;
|
|
|
|
card->mpa_tx.pkt_aggr_limit = SDIO_MP_AGGR_DEF_PKT_LIMIT;
|
|
|
|
|
|
|
|
card->mpa_rx.buf_len = 0;
|
|
|
|
card->mpa_rx.pkt_cnt = 0;
|
|
|
|
card->mpa_rx.start_port = 0;
|
|
|
|
|
|
|
|
card->mpa_rx.enabled = 0;
|
|
|
|
card->mpa_rx.pkt_aggr_limit = SDIO_MP_AGGR_DEF_PKT_LIMIT;
|
|
|
|
|
|
|
|
/* Allocate buffers for SDIO MP-A */
|
|
|
|
card->mp_regs = kzalloc(MAX_MP_REGS, GFP_KERNEL);
|
|
|
|
if (!card->mp_regs) {
|
|
|
|
dev_err(adapter->dev, "failed to alloc mp_regs\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = mwifiex_alloc_sdio_mpa_buffers(adapter,
|
|
|
|
SDIO_MP_TX_AGGR_DEF_BUF_SIZE,
|
|
|
|
SDIO_MP_RX_AGGR_DEF_BUF_SIZE);
|
|
|
|
if (ret) {
|
|
|
|
dev_err(adapter->dev, "failed to alloc sdio mp-a buffers\n");
|
|
|
|
kfree(card->mp_regs);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function resets the MPA Tx and Rx buffers.
|
|
|
|
*/
|
|
|
|
static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter)
|
|
|
|
{
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
|
|
|
|
MP_TX_AGGR_BUF_RESET(card);
|
|
|
|
MP_RX_AGGR_BUF_RESET(card);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function cleans up the allocated card buffers.
|
|
|
|
*
|
|
|
|
* The following are freed by this function -
|
|
|
|
* - MP registers
|
|
|
|
* - MPA Tx buffer
|
|
|
|
* - MPA Rx buffer
|
|
|
|
*/
|
|
|
|
static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter)
|
|
|
|
{
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
|
|
|
|
kfree(card->mp_regs);
|
|
|
|
kfree(card->mpa_tx.buf);
|
|
|
|
kfree(card->mpa_rx.buf);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function updates the MP end port in card.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port)
|
|
|
|
{
|
|
|
|
struct sdio_mmc_card *card = adapter->card;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
card->mp_end_port = port;
|
|
|
|
|
|
|
|
card->mp_data_port_mask = DATA_PORT_MASK;
|
|
|
|
|
|
|
|
for (i = 1; i <= MAX_PORT - card->mp_end_port; i++)
|
|
|
|
card->mp_data_port_mask &= ~(1 << (MAX_PORT - i));
|
|
|
|
|
|
|
|
card->curr_wr_port = 1;
|
|
|
|
|
|
|
|
dev_dbg(adapter->dev, "cmd: mp_end_port %d, data port mask 0x%x\n",
|
|
|
|
port, card->mp_data_port_mask);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct mwifiex_if_ops sdio_ops = {
|
|
|
|
.init_if = mwifiex_init_sdio,
|
|
|
|
.cleanup_if = mwifiex_cleanup_sdio,
|
|
|
|
.check_fw_status = mwifiex_check_fw_status,
|
|
|
|
.prog_fw = mwifiex_prog_fw_w_helper,
|
|
|
|
.register_dev = mwifiex_register_dev,
|
|
|
|
.unregister_dev = mwifiex_unregister_dev,
|
|
|
|
.enable_int = mwifiex_sdio_enable_host_int,
|
|
|
|
.process_int_status = mwifiex_process_int_status,
|
|
|
|
.host_to_card = mwifiex_sdio_host_to_card,
|
|
|
|
.wakeup = mwifiex_pm_wakeup_card,
|
|
|
|
.wakeup_complete = mwifiex_pm_wakeup_card_complete,
|
|
|
|
|
|
|
|
/* SDIO specific */
|
|
|
|
.update_mp_end_port = mwifiex_update_mp_end_port,
|
|
|
|
.cleanup_mpa_buf = mwifiex_cleanup_mpa_buf,
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function initializes the SDIO driver.
|
|
|
|
*
|
|
|
|
* This initiates the semaphore and registers the device with
|
|
|
|
* SDIO bus.
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
mwifiex_sdio_init_module(void)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
sema_init(&add_remove_card_sem, 1);
|
|
|
|
|
|
|
|
ret = sdio_register_driver(&mwifiex_sdio);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This function cleans up the SDIO driver.
|
|
|
|
*
|
|
|
|
* The following major steps are followed for cleanup -
|
|
|
|
* - Resume the device if its suspended
|
|
|
|
* - Disconnect the device if connected
|
|
|
|
* - Shutdown the firmware
|
|
|
|
* - Unregister the device from SDIO bus.
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
mwifiex_sdio_cleanup_module(void)
|
|
|
|
{
|
|
|
|
struct mwifiex_adapter *adapter = g_adapter;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (down_interruptible(&add_remove_card_sem))
|
|
|
|
goto exit_sem_err;
|
|
|
|
|
|
|
|
if (!adapter || !adapter->priv_num)
|
|
|
|
goto exit;
|
|
|
|
|
|
|
|
if (adapter->is_suspended)
|
|
|
|
mwifiex_sdio_resume(adapter->dev);
|
|
|
|
|
|
|
|
for (i = 0; i < adapter->priv_num; i++)
|
|
|
|
if ((GET_BSS_ROLE(adapter->priv[i]) == MWIFIEX_BSS_ROLE_STA) &&
|
|
|
|
adapter->priv[i]->media_connected)
|
2011-04-14 00:27:06 +00:00
|
|
|
mwifiex_deauthenticate(adapter->priv[i], NULL);
|
2011-03-22 01:00:50 +00:00
|
|
|
|
|
|
|
if (!adapter->surprise_removed)
|
2011-04-14 00:27:06 +00:00
|
|
|
mwifiex_init_shutdown_fw(mwifiex_get_priv(adapter,
|
|
|
|
MWIFIEX_BSS_ROLE_ANY),
|
|
|
|
MWIFIEX_FUNC_SHUTDOWN);
|
2011-03-22 01:00:50 +00:00
|
|
|
|
|
|
|
exit:
|
|
|
|
up(&add_remove_card_sem);
|
|
|
|
|
|
|
|
exit_sem_err:
|
|
|
|
sdio_unregister_driver(&mwifiex_sdio);
|
|
|
|
}
|
|
|
|
|
|
|
|
module_init(mwifiex_sdio_init_module);
|
|
|
|
module_exit(mwifiex_sdio_cleanup_module);
|
|
|
|
|
|
|
|
MODULE_AUTHOR("Marvell International Ltd.");
|
|
|
|
MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION);
|
|
|
|
MODULE_VERSION(SDIO_VERSION);
|
|
|
|
MODULE_LICENSE("GPL v2");
|
|
|
|
MODULE_FIRMWARE("sd8787.bin");
|