![Grazvydas Ignotas](/assets/img/avatar_default.png)
Call interface specific power callback before calling board specific one. Also allow that callback to fail. This is how it's done for wl1271 and will be used for runtime_pm support. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Acked-by: Kalle Valo <kvalo@adurom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
1439 lines
31 KiB
C
1439 lines
31 KiB
C
/*
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* This file is part of wl1251
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*
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* Copyright (C) 2008-2009 Nokia Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/firmware.h>
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#include <linux/delay.h>
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#include <linux/irq.h>
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#include <linux/crc32.h>
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#include <linux/etherdevice.h>
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#include <linux/vmalloc.h>
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#include <linux/slab.h>
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#include "wl1251.h"
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#include "wl12xx_80211.h"
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#include "reg.h"
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#include "io.h"
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#include "cmd.h"
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#include "event.h"
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#include "tx.h"
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#include "rx.h"
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#include "ps.h"
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#include "init.h"
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#include "debugfs.h"
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#include "boot.h"
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void wl1251_enable_interrupts(struct wl1251 *wl)
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{
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wl->if_ops->enable_irq(wl);
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}
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void wl1251_disable_interrupts(struct wl1251 *wl)
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{
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wl->if_ops->disable_irq(wl);
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}
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static int wl1251_power_off(struct wl1251 *wl)
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{
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return wl->if_ops->power(wl, false);
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}
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static int wl1251_power_on(struct wl1251 *wl)
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{
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return wl->if_ops->power(wl, true);
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}
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static int wl1251_fetch_firmware(struct wl1251 *wl)
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{
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const struct firmware *fw;
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struct device *dev = wiphy_dev(wl->hw->wiphy);
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int ret;
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ret = request_firmware(&fw, WL1251_FW_NAME, dev);
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if (ret < 0) {
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wl1251_error("could not get firmware: %d", ret);
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return ret;
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}
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if (fw->size % 4) {
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wl1251_error("firmware size is not multiple of 32 bits: %zu",
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fw->size);
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ret = -EILSEQ;
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goto out;
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}
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wl->fw_len = fw->size;
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wl->fw = vmalloc(wl->fw_len);
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if (!wl->fw) {
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wl1251_error("could not allocate memory for the firmware");
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ret = -ENOMEM;
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goto out;
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}
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memcpy(wl->fw, fw->data, wl->fw_len);
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ret = 0;
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out:
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release_firmware(fw);
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return ret;
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}
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static int wl1251_fetch_nvs(struct wl1251 *wl)
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{
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const struct firmware *fw;
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struct device *dev = wiphy_dev(wl->hw->wiphy);
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int ret;
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ret = request_firmware(&fw, WL1251_NVS_NAME, dev);
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if (ret < 0) {
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wl1251_error("could not get nvs file: %d", ret);
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return ret;
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}
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if (fw->size % 4) {
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wl1251_error("nvs size is not multiple of 32 bits: %zu",
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fw->size);
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ret = -EILSEQ;
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goto out;
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}
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wl->nvs_len = fw->size;
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wl->nvs = kmemdup(fw->data, wl->nvs_len, GFP_KERNEL);
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if (!wl->nvs) {
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wl1251_error("could not allocate memory for the nvs file");
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ret = -ENOMEM;
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goto out;
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}
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ret = 0;
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out:
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release_firmware(fw);
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return ret;
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}
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static void wl1251_fw_wakeup(struct wl1251 *wl)
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{
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u32 elp_reg;
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elp_reg = ELPCTRL_WAKE_UP;
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wl1251_write_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg);
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elp_reg = wl1251_read_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR);
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if (!(elp_reg & ELPCTRL_WLAN_READY))
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wl1251_warning("WLAN not ready");
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}
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static int wl1251_chip_wakeup(struct wl1251 *wl)
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{
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int ret;
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ret = wl1251_power_on(wl);
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if (ret < 0)
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return ret;
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msleep(WL1251_POWER_ON_SLEEP);
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wl->if_ops->reset(wl);
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/* We don't need a real memory partition here, because we only want
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* to use the registers at this point. */
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wl1251_set_partition(wl,
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0x00000000,
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0x00000000,
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REGISTERS_BASE,
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REGISTERS_DOWN_SIZE);
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/* ELP module wake up */
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wl1251_fw_wakeup(wl);
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/* whal_FwCtrl_BootSm() */
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/* 0. read chip id from CHIP_ID */
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wl->chip_id = wl1251_reg_read32(wl, CHIP_ID_B);
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/* 1. check if chip id is valid */
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switch (wl->chip_id) {
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case CHIP_ID_1251_PG12:
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wl1251_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG12)",
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wl->chip_id);
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break;
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case CHIP_ID_1251_PG11:
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wl1251_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG11)",
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wl->chip_id);
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break;
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case CHIP_ID_1251_PG10:
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default:
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wl1251_error("unsupported chip id: 0x%x", wl->chip_id);
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ret = -ENODEV;
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goto out;
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}
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if (wl->fw == NULL) {
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ret = wl1251_fetch_firmware(wl);
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if (ret < 0)
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goto out;
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}
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if (wl->nvs == NULL && !wl->use_eeprom) {
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/* No NVS from netlink, try to get it from the filesystem */
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ret = wl1251_fetch_nvs(wl);
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if (ret < 0)
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goto out;
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}
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out:
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return ret;
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}
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#define WL1251_IRQ_LOOP_COUNT 10
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static void wl1251_irq_work(struct work_struct *work)
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{
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u32 intr, ctr = WL1251_IRQ_LOOP_COUNT;
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struct wl1251 *wl =
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container_of(work, struct wl1251, irq_work);
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int ret;
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mutex_lock(&wl->mutex);
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wl1251_debug(DEBUG_IRQ, "IRQ work");
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if (wl->state == WL1251_STATE_OFF)
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goto out;
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ret = wl1251_ps_elp_wakeup(wl);
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if (ret < 0)
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goto out;
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wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, WL1251_ACX_INTR_ALL);
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intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR);
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wl1251_debug(DEBUG_IRQ, "intr: 0x%x", intr);
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do {
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if (wl->data_path) {
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wl->rx_counter = wl1251_mem_read32(
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wl, wl->data_path->rx_control_addr);
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/* We handle a frmware bug here */
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switch ((wl->rx_counter - wl->rx_handled) & 0xf) {
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case 0:
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wl1251_debug(DEBUG_IRQ,
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"RX: FW and host in sync");
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intr &= ~WL1251_ACX_INTR_RX0_DATA;
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intr &= ~WL1251_ACX_INTR_RX1_DATA;
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break;
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case 1:
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wl1251_debug(DEBUG_IRQ, "RX: FW +1");
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intr |= WL1251_ACX_INTR_RX0_DATA;
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intr &= ~WL1251_ACX_INTR_RX1_DATA;
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break;
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case 2:
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wl1251_debug(DEBUG_IRQ, "RX: FW +2");
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intr |= WL1251_ACX_INTR_RX0_DATA;
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intr |= WL1251_ACX_INTR_RX1_DATA;
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break;
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default:
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wl1251_warning(
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"RX: FW and host out of sync: %d",
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wl->rx_counter - wl->rx_handled);
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break;
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}
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wl->rx_handled = wl->rx_counter;
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wl1251_debug(DEBUG_IRQ, "RX counter: %d",
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wl->rx_counter);
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}
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intr &= wl->intr_mask;
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if (intr == 0) {
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wl1251_debug(DEBUG_IRQ, "INTR is 0");
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goto out_sleep;
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}
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if (intr & WL1251_ACX_INTR_RX0_DATA) {
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wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX0_DATA");
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wl1251_rx(wl);
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}
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if (intr & WL1251_ACX_INTR_RX1_DATA) {
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wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX1_DATA");
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wl1251_rx(wl);
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}
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if (intr & WL1251_ACX_INTR_TX_RESULT) {
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wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_TX_RESULT");
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wl1251_tx_complete(wl);
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}
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if (intr & WL1251_ACX_INTR_EVENT_A) {
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wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT_A");
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wl1251_event_handle(wl, 0);
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}
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if (intr & WL1251_ACX_INTR_EVENT_B) {
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wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT_B");
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wl1251_event_handle(wl, 1);
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}
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if (intr & WL1251_ACX_INTR_INIT_COMPLETE)
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wl1251_debug(DEBUG_IRQ,
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"WL1251_ACX_INTR_INIT_COMPLETE");
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if (--ctr == 0)
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break;
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intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR);
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} while (intr);
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out_sleep:
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wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask));
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wl1251_ps_elp_sleep(wl);
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out:
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mutex_unlock(&wl->mutex);
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}
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static int wl1251_join(struct wl1251 *wl, u8 bss_type, u8 channel,
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u16 beacon_interval, u8 dtim_period)
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{
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int ret;
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ret = wl1251_acx_frame_rates(wl, DEFAULT_HW_GEN_TX_RATE,
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DEFAULT_HW_GEN_MODULATION_TYPE,
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wl->tx_mgmt_frm_rate,
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wl->tx_mgmt_frm_mod);
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if (ret < 0)
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goto out;
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ret = wl1251_cmd_join(wl, bss_type, channel, beacon_interval,
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dtim_period);
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if (ret < 0)
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goto out;
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ret = wl1251_event_wait(wl, JOIN_EVENT_COMPLETE_ID, 100);
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if (ret < 0)
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wl1251_warning("join timeout");
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out:
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return ret;
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}
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static void wl1251_filter_work(struct work_struct *work)
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{
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struct wl1251 *wl =
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container_of(work, struct wl1251, filter_work);
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int ret;
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mutex_lock(&wl->mutex);
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if (wl->state == WL1251_STATE_OFF)
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goto out;
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ret = wl1251_ps_elp_wakeup(wl);
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if (ret < 0)
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goto out;
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ret = wl1251_join(wl, wl->bss_type, wl->channel, wl->beacon_int,
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wl->dtim_period);
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if (ret < 0)
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goto out_sleep;
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out_sleep:
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wl1251_ps_elp_sleep(wl);
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out:
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mutex_unlock(&wl->mutex);
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}
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static int wl1251_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
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{
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struct wl1251 *wl = hw->priv;
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unsigned long flags;
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skb_queue_tail(&wl->tx_queue, skb);
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/*
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* The chip specific setup must run before the first TX packet -
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* before that, the tx_work will not be initialized!
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*/
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ieee80211_queue_work(wl->hw, &wl->tx_work);
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/*
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* The workqueue is slow to process the tx_queue and we need stop
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* the queue here, otherwise the queue will get too long.
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*/
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if (skb_queue_len(&wl->tx_queue) >= WL1251_TX_QUEUE_HIGH_WATERMARK) {
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wl1251_debug(DEBUG_TX, "op_tx: tx_queue full, stop queues");
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spin_lock_irqsave(&wl->wl_lock, flags);
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ieee80211_stop_queues(wl->hw);
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wl->tx_queue_stopped = true;
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spin_unlock_irqrestore(&wl->wl_lock, flags);
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}
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return NETDEV_TX_OK;
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}
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static int wl1251_op_start(struct ieee80211_hw *hw)
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{
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struct wl1251 *wl = hw->priv;
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struct wiphy *wiphy = hw->wiphy;
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int ret = 0;
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wl1251_debug(DEBUG_MAC80211, "mac80211 start");
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mutex_lock(&wl->mutex);
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if (wl->state != WL1251_STATE_OFF) {
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wl1251_error("cannot start because not in off state: %d",
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wl->state);
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ret = -EBUSY;
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goto out;
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}
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ret = wl1251_chip_wakeup(wl);
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if (ret < 0)
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goto out;
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ret = wl1251_boot(wl);
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if (ret < 0)
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goto out;
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ret = wl1251_hw_init(wl);
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if (ret < 0)
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goto out;
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ret = wl1251_acx_station_id(wl);
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if (ret < 0)
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goto out;
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wl->state = WL1251_STATE_ON;
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wl1251_info("firmware booted (%s)", wl->fw_ver);
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|
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/* update hw/fw version info in wiphy struct */
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wiphy->hw_version = wl->chip_id;
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strncpy(wiphy->fw_version, wl->fw_ver, sizeof(wiphy->fw_version));
|
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out:
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if (ret < 0)
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wl1251_power_off(wl);
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|
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mutex_unlock(&wl->mutex);
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|
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return ret;
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}
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|
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static void wl1251_op_stop(struct ieee80211_hw *hw)
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{
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struct wl1251 *wl = hw->priv;
|
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|
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wl1251_info("down");
|
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|
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wl1251_debug(DEBUG_MAC80211, "mac80211 stop");
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|
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mutex_lock(&wl->mutex);
|
|
|
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WARN_ON(wl->state != WL1251_STATE_ON);
|
|
|
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if (wl->scanning) {
|
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ieee80211_scan_completed(wl->hw, true);
|
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wl->scanning = false;
|
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}
|
|
|
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wl->state = WL1251_STATE_OFF;
|
|
|
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wl1251_disable_interrupts(wl);
|
|
|
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mutex_unlock(&wl->mutex);
|
|
|
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cancel_work_sync(&wl->irq_work);
|
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cancel_work_sync(&wl->tx_work);
|
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cancel_work_sync(&wl->filter_work);
|
|
|
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mutex_lock(&wl->mutex);
|
|
|
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/* let's notify MAC80211 about the remaining pending TX frames */
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wl1251_tx_flush(wl);
|
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wl1251_power_off(wl);
|
|
|
|
memset(wl->bssid, 0, ETH_ALEN);
|
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wl->listen_int = 1;
|
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wl->bss_type = MAX_BSS_TYPE;
|
|
|
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wl->data_in_count = 0;
|
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wl->rx_counter = 0;
|
|
wl->rx_handled = 0;
|
|
wl->rx_current_buffer = 0;
|
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wl->rx_last_id = 0;
|
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wl->next_tx_complete = 0;
|
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wl->elp = false;
|
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wl->psm = 0;
|
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wl->tx_queue_stopped = false;
|
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wl->power_level = WL1251_DEFAULT_POWER_LEVEL;
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wl->channel = WL1251_DEFAULT_CHANNEL;
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|
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wl1251_debugfs_reset(wl);
|
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|
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mutex_unlock(&wl->mutex);
|
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}
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|
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static int wl1251_op_add_interface(struct ieee80211_hw *hw,
|
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struct ieee80211_vif *vif)
|
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{
|
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struct wl1251 *wl = hw->priv;
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int ret = 0;
|
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|
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wl1251_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM",
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vif->type, vif->addr);
|
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|
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mutex_lock(&wl->mutex);
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if (wl->vif) {
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ret = -EBUSY;
|
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goto out;
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}
|
|
|
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wl->vif = vif;
|
|
|
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switch (vif->type) {
|
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case NL80211_IFTYPE_STATION:
|
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wl->bss_type = BSS_TYPE_STA_BSS;
|
|
break;
|
|
case NL80211_IFTYPE_ADHOC:
|
|
wl->bss_type = BSS_TYPE_IBSS;
|
|
break;
|
|
default:
|
|
ret = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
if (memcmp(wl->mac_addr, vif->addr, ETH_ALEN)) {
|
|
memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
|
|
SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
|
|
ret = wl1251_acx_station_id(wl);
|
|
if (ret < 0)
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
mutex_unlock(&wl->mutex);
|
|
return ret;
|
|
}
|
|
|
|
static void wl1251_op_remove_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct wl1251 *wl = hw->priv;
|
|
|
|
mutex_lock(&wl->mutex);
|
|
wl1251_debug(DEBUG_MAC80211, "mac80211 remove interface");
|
|
wl->vif = NULL;
|
|
mutex_unlock(&wl->mutex);
|
|
}
|
|
|
|
static int wl1251_build_qos_null_data(struct wl1251 *wl)
|
|
{
|
|
struct ieee80211_qos_hdr template;
|
|
|
|
memset(&template, 0, sizeof(template));
|
|
|
|
memcpy(template.addr1, wl->bssid, ETH_ALEN);
|
|
memcpy(template.addr2, wl->mac_addr, ETH_ALEN);
|
|
memcpy(template.addr3, wl->bssid, ETH_ALEN);
|
|
|
|
template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
|
|
IEEE80211_STYPE_QOS_NULLFUNC |
|
|
IEEE80211_FCTL_TODS);
|
|
|
|
/* FIXME: not sure what priority to use here */
|
|
template.qos_ctrl = cpu_to_le16(0);
|
|
|
|
return wl1251_cmd_template_set(wl, CMD_QOS_NULL_DATA, &template,
|
|
sizeof(template));
|
|
}
|
|
|
|
static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed)
|
|
{
|
|
struct wl1251 *wl = hw->priv;
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
int channel, ret = 0;
|
|
|
|
channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
|
|
|
|
wl1251_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d",
|
|
channel,
|
|
conf->flags & IEEE80211_CONF_PS ? "on" : "off",
|
|
conf->power_level);
|
|
|
|
mutex_lock(&wl->mutex);
|
|
|
|
ret = wl1251_ps_elp_wakeup(wl);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
if (channel != wl->channel) {
|
|
wl->channel = channel;
|
|
|
|
ret = wl1251_join(wl, wl->bss_type, wl->channel,
|
|
wl->beacon_int, wl->dtim_period);
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
}
|
|
|
|
if (conf->flags & IEEE80211_CONF_PS && !wl->psm_requested) {
|
|
wl1251_debug(DEBUG_PSM, "psm enabled");
|
|
|
|
wl->psm_requested = true;
|
|
|
|
wl->dtim_period = conf->ps_dtim_period;
|
|
|
|
ret = wl1251_acx_wr_tbtt_and_dtim(wl, wl->beacon_int,
|
|
wl->dtim_period);
|
|
|
|
/*
|
|
* mac80211 enables PSM only if we're already associated.
|
|
*/
|
|
ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE);
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
} else if (!(conf->flags & IEEE80211_CONF_PS) &&
|
|
wl->psm_requested) {
|
|
wl1251_debug(DEBUG_PSM, "psm disabled");
|
|
|
|
wl->psm_requested = false;
|
|
|
|
if (wl->psm) {
|
|
ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE);
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
}
|
|
}
|
|
|
|
if (conf->power_level != wl->power_level) {
|
|
ret = wl1251_acx_tx_power(wl, conf->power_level);
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
|
|
wl->power_level = conf->power_level;
|
|
}
|
|
|
|
out_sleep:
|
|
wl1251_ps_elp_sleep(wl);
|
|
|
|
out:
|
|
mutex_unlock(&wl->mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define WL1251_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
|
|
FIF_ALLMULTI | \
|
|
FIF_FCSFAIL | \
|
|
FIF_BCN_PRBRESP_PROMISC | \
|
|
FIF_CONTROL | \
|
|
FIF_OTHER_BSS)
|
|
|
|
static void wl1251_op_configure_filter(struct ieee80211_hw *hw,
|
|
unsigned int changed,
|
|
unsigned int *total,u64 multicast)
|
|
{
|
|
struct wl1251 *wl = hw->priv;
|
|
|
|
wl1251_debug(DEBUG_MAC80211, "mac80211 configure filter");
|
|
|
|
*total &= WL1251_SUPPORTED_FILTERS;
|
|
changed &= WL1251_SUPPORTED_FILTERS;
|
|
|
|
if (changed == 0)
|
|
/* no filters which we support changed */
|
|
return;
|
|
|
|
/* FIXME: wl->rx_config and wl->rx_filter are not protected */
|
|
|
|
wl->rx_config = WL1251_DEFAULT_RX_CONFIG;
|
|
wl->rx_filter = WL1251_DEFAULT_RX_FILTER;
|
|
|
|
if (*total & FIF_PROMISC_IN_BSS) {
|
|
wl->rx_config |= CFG_BSSID_FILTER_EN;
|
|
wl->rx_config |= CFG_RX_ALL_GOOD;
|
|
}
|
|
if (*total & FIF_ALLMULTI)
|
|
/*
|
|
* CFG_MC_FILTER_EN in rx_config needs to be 0 to receive
|
|
* all multicast frames
|
|
*/
|
|
wl->rx_config &= ~CFG_MC_FILTER_EN;
|
|
if (*total & FIF_FCSFAIL)
|
|
wl->rx_filter |= CFG_RX_FCS_ERROR;
|
|
if (*total & FIF_BCN_PRBRESP_PROMISC) {
|
|
wl->rx_config &= ~CFG_BSSID_FILTER_EN;
|
|
wl->rx_config &= ~CFG_SSID_FILTER_EN;
|
|
}
|
|
if (*total & FIF_CONTROL)
|
|
wl->rx_filter |= CFG_RX_CTL_EN;
|
|
if (*total & FIF_OTHER_BSS)
|
|
wl->rx_filter &= ~CFG_BSSID_FILTER_EN;
|
|
|
|
/*
|
|
* FIXME: workqueues need to be properly cancelled on stop(), for
|
|
* now let's just disable changing the filter settings. They will
|
|
* be updated any on config().
|
|
*/
|
|
/* schedule_work(&wl->filter_work); */
|
|
}
|
|
|
|
/* HW encryption */
|
|
static int wl1251_set_key_type(struct wl1251 *wl,
|
|
struct wl1251_cmd_set_keys *key,
|
|
enum set_key_cmd cmd,
|
|
struct ieee80211_key_conf *mac80211_key,
|
|
const u8 *addr)
|
|
{
|
|
switch (mac80211_key->cipher) {
|
|
case WLAN_CIPHER_SUITE_WEP40:
|
|
case WLAN_CIPHER_SUITE_WEP104:
|
|
if (is_broadcast_ether_addr(addr))
|
|
key->key_type = KEY_WEP_DEFAULT;
|
|
else
|
|
key->key_type = KEY_WEP_ADDR;
|
|
|
|
mac80211_key->hw_key_idx = mac80211_key->keyidx;
|
|
break;
|
|
case WLAN_CIPHER_SUITE_TKIP:
|
|
if (is_broadcast_ether_addr(addr))
|
|
key->key_type = KEY_TKIP_MIC_GROUP;
|
|
else
|
|
key->key_type = KEY_TKIP_MIC_PAIRWISE;
|
|
|
|
mac80211_key->hw_key_idx = mac80211_key->keyidx;
|
|
break;
|
|
case WLAN_CIPHER_SUITE_CCMP:
|
|
if (is_broadcast_ether_addr(addr))
|
|
key->key_type = KEY_AES_GROUP;
|
|
else
|
|
key->key_type = KEY_AES_PAIRWISE;
|
|
mac80211_key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
|
|
break;
|
|
default:
|
|
wl1251_error("Unknown key cipher 0x%x", mac80211_key->cipher);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl1251_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta,
|
|
struct ieee80211_key_conf *key)
|
|
{
|
|
struct wl1251 *wl = hw->priv;
|
|
struct wl1251_cmd_set_keys *wl_cmd;
|
|
const u8 *addr;
|
|
int ret;
|
|
|
|
static const u8 bcast_addr[ETH_ALEN] =
|
|
{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
|
|
|
|
wl1251_debug(DEBUG_MAC80211, "mac80211 set key");
|
|
|
|
wl_cmd = kzalloc(sizeof(*wl_cmd), GFP_KERNEL);
|
|
if (!wl_cmd) {
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
addr = sta ? sta->addr : bcast_addr;
|
|
|
|
wl1251_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd);
|
|
wl1251_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN);
|
|
wl1251_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
|
|
key->cipher, key->keyidx, key->keylen, key->flags);
|
|
wl1251_dump(DEBUG_CRYPT, "KEY: ", key->key, key->keylen);
|
|
|
|
if (is_zero_ether_addr(addr)) {
|
|
/* We dont support TX only encryption */
|
|
ret = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
mutex_lock(&wl->mutex);
|
|
|
|
ret = wl1251_ps_elp_wakeup(wl);
|
|
if (ret < 0)
|
|
goto out_unlock;
|
|
|
|
switch (cmd) {
|
|
case SET_KEY:
|
|
wl_cmd->key_action = KEY_ADD_OR_REPLACE;
|
|
break;
|
|
case DISABLE_KEY:
|
|
wl_cmd->key_action = KEY_REMOVE;
|
|
break;
|
|
default:
|
|
wl1251_error("Unsupported key cmd 0x%x", cmd);
|
|
break;
|
|
}
|
|
|
|
ret = wl1251_set_key_type(wl, wl_cmd, cmd, key, addr);
|
|
if (ret < 0) {
|
|
wl1251_error("Set KEY type failed");
|
|
goto out_sleep;
|
|
}
|
|
|
|
if (wl_cmd->key_type != KEY_WEP_DEFAULT)
|
|
memcpy(wl_cmd->addr, addr, ETH_ALEN);
|
|
|
|
if ((wl_cmd->key_type == KEY_TKIP_MIC_GROUP) ||
|
|
(wl_cmd->key_type == KEY_TKIP_MIC_PAIRWISE)) {
|
|
/*
|
|
* We get the key in the following form:
|
|
* TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
|
|
* but the target is expecting:
|
|
* TKIP - RX MIC - TX MIC
|
|
*/
|
|
memcpy(wl_cmd->key, key->key, 16);
|
|
memcpy(wl_cmd->key + 16, key->key + 24, 8);
|
|
memcpy(wl_cmd->key + 24, key->key + 16, 8);
|
|
|
|
} else {
|
|
memcpy(wl_cmd->key, key->key, key->keylen);
|
|
}
|
|
wl_cmd->key_size = key->keylen;
|
|
|
|
wl_cmd->id = key->keyidx;
|
|
wl_cmd->ssid_profile = 0;
|
|
|
|
wl1251_dump(DEBUG_CRYPT, "TARGET KEY: ", wl_cmd, sizeof(*wl_cmd));
|
|
|
|
ret = wl1251_cmd_send(wl, CMD_SET_KEYS, wl_cmd, sizeof(*wl_cmd));
|
|
if (ret < 0) {
|
|
wl1251_warning("could not set keys");
|
|
goto out_sleep;
|
|
}
|
|
|
|
out_sleep:
|
|
wl1251_ps_elp_sleep(wl);
|
|
|
|
out_unlock:
|
|
mutex_unlock(&wl->mutex);
|
|
|
|
out:
|
|
kfree(wl_cmd);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int wl1251_op_hw_scan(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct cfg80211_scan_request *req)
|
|
{
|
|
struct wl1251 *wl = hw->priv;
|
|
struct sk_buff *skb;
|
|
size_t ssid_len = 0;
|
|
u8 *ssid = NULL;
|
|
int ret;
|
|
|
|
wl1251_debug(DEBUG_MAC80211, "mac80211 hw scan");
|
|
|
|
if (req->n_ssids) {
|
|
ssid = req->ssids[0].ssid;
|
|
ssid_len = req->ssids[0].ssid_len;
|
|
}
|
|
|
|
mutex_lock(&wl->mutex);
|
|
|
|
if (wl->scanning) {
|
|
wl1251_debug(DEBUG_SCAN, "scan already in progress");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
ret = wl1251_ps_elp_wakeup(wl);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
skb = ieee80211_probereq_get(wl->hw, wl->vif, ssid, ssid_len,
|
|
req->ie, req->ie_len);
|
|
if (!skb) {
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
ret = wl1251_cmd_template_set(wl, CMD_PROBE_REQ, skb->data,
|
|
skb->len);
|
|
dev_kfree_skb(skb);
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
|
|
ret = wl1251_cmd_trigger_scan_to(wl, 0);
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
|
|
wl->scanning = true;
|
|
|
|
ret = wl1251_cmd_scan(wl, ssid, ssid_len, req->channels,
|
|
req->n_channels, WL1251_SCAN_NUM_PROBES);
|
|
if (ret < 0) {
|
|
wl->scanning = false;
|
|
goto out_sleep;
|
|
}
|
|
|
|
out_sleep:
|
|
wl1251_ps_elp_sleep(wl);
|
|
|
|
out:
|
|
mutex_unlock(&wl->mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int wl1251_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
|
|
{
|
|
struct wl1251 *wl = hw->priv;
|
|
int ret;
|
|
|
|
mutex_lock(&wl->mutex);
|
|
|
|
ret = wl1251_ps_elp_wakeup(wl);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = wl1251_acx_rts_threshold(wl, (u16) value);
|
|
if (ret < 0)
|
|
wl1251_warning("wl1251_op_set_rts_threshold failed: %d", ret);
|
|
|
|
wl1251_ps_elp_sleep(wl);
|
|
|
|
out:
|
|
mutex_unlock(&wl->mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_bss_conf *bss_conf,
|
|
u32 changed)
|
|
{
|
|
struct wl1251 *wl = hw->priv;
|
|
struct sk_buff *beacon, *skb;
|
|
int ret;
|
|
|
|
wl1251_debug(DEBUG_MAC80211, "mac80211 bss info changed");
|
|
|
|
mutex_lock(&wl->mutex);
|
|
|
|
ret = wl1251_ps_elp_wakeup(wl);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
if (changed & BSS_CHANGED_BSSID) {
|
|
memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN);
|
|
|
|
skb = ieee80211_nullfunc_get(wl->hw, wl->vif);
|
|
if (!skb)
|
|
goto out_sleep;
|
|
|
|
ret = wl1251_cmd_template_set(wl, CMD_NULL_DATA,
|
|
skb->data, skb->len);
|
|
dev_kfree_skb(skb);
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
|
|
ret = wl1251_build_qos_null_data(wl);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
if (wl->bss_type != BSS_TYPE_IBSS) {
|
|
ret = wl1251_join(wl, wl->bss_type, wl->channel,
|
|
wl->beacon_int, wl->dtim_period);
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
}
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_ASSOC) {
|
|
if (bss_conf->assoc) {
|
|
wl->beacon_int = bss_conf->beacon_int;
|
|
|
|
skb = ieee80211_pspoll_get(wl->hw, wl->vif);
|
|
if (!skb)
|
|
goto out_sleep;
|
|
|
|
ret = wl1251_cmd_template_set(wl, CMD_PS_POLL,
|
|
skb->data,
|
|
skb->len);
|
|
dev_kfree_skb(skb);
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
|
|
ret = wl1251_acx_aid(wl, bss_conf->aid);
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
} else {
|
|
/* use defaults when not associated */
|
|
wl->beacon_int = WL1251_DEFAULT_BEACON_INT;
|
|
wl->dtim_period = WL1251_DEFAULT_DTIM_PERIOD;
|
|
}
|
|
}
|
|
if (changed & BSS_CHANGED_ERP_SLOT) {
|
|
if (bss_conf->use_short_slot)
|
|
ret = wl1251_acx_slot(wl, SLOT_TIME_SHORT);
|
|
else
|
|
ret = wl1251_acx_slot(wl, SLOT_TIME_LONG);
|
|
if (ret < 0) {
|
|
wl1251_warning("Set slot time failed %d", ret);
|
|
goto out_sleep;
|
|
}
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_ERP_PREAMBLE) {
|
|
if (bss_conf->use_short_preamble)
|
|
wl1251_acx_set_preamble(wl, ACX_PREAMBLE_SHORT);
|
|
else
|
|
wl1251_acx_set_preamble(wl, ACX_PREAMBLE_LONG);
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_ERP_CTS_PROT) {
|
|
if (bss_conf->use_cts_prot)
|
|
ret = wl1251_acx_cts_protect(wl, CTSPROTECT_ENABLE);
|
|
else
|
|
ret = wl1251_acx_cts_protect(wl, CTSPROTECT_DISABLE);
|
|
if (ret < 0) {
|
|
wl1251_warning("Set ctsprotect failed %d", ret);
|
|
goto out_sleep;
|
|
}
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_BEACON) {
|
|
beacon = ieee80211_beacon_get(hw, vif);
|
|
ret = wl1251_cmd_template_set(wl, CMD_BEACON, beacon->data,
|
|
beacon->len);
|
|
|
|
if (ret < 0) {
|
|
dev_kfree_skb(beacon);
|
|
goto out_sleep;
|
|
}
|
|
|
|
ret = wl1251_cmd_template_set(wl, CMD_PROBE_RESP, beacon->data,
|
|
beacon->len);
|
|
|
|
dev_kfree_skb(beacon);
|
|
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
|
|
ret = wl1251_join(wl, wl->bss_type, wl->beacon_int,
|
|
wl->channel, wl->dtim_period);
|
|
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
}
|
|
|
|
out_sleep:
|
|
wl1251_ps_elp_sleep(wl);
|
|
|
|
out:
|
|
mutex_unlock(&wl->mutex);
|
|
}
|
|
|
|
|
|
/* can't be const, mac80211 writes to this */
|
|
static struct ieee80211_rate wl1251_rates[] = {
|
|
{ .bitrate = 10,
|
|
.hw_value = 0x1,
|
|
.hw_value_short = 0x1, },
|
|
{ .bitrate = 20,
|
|
.hw_value = 0x2,
|
|
.hw_value_short = 0x2,
|
|
.flags = IEEE80211_RATE_SHORT_PREAMBLE },
|
|
{ .bitrate = 55,
|
|
.hw_value = 0x4,
|
|
.hw_value_short = 0x4,
|
|
.flags = IEEE80211_RATE_SHORT_PREAMBLE },
|
|
{ .bitrate = 110,
|
|
.hw_value = 0x20,
|
|
.hw_value_short = 0x20,
|
|
.flags = IEEE80211_RATE_SHORT_PREAMBLE },
|
|
{ .bitrate = 60,
|
|
.hw_value = 0x8,
|
|
.hw_value_short = 0x8, },
|
|
{ .bitrate = 90,
|
|
.hw_value = 0x10,
|
|
.hw_value_short = 0x10, },
|
|
{ .bitrate = 120,
|
|
.hw_value = 0x40,
|
|
.hw_value_short = 0x40, },
|
|
{ .bitrate = 180,
|
|
.hw_value = 0x80,
|
|
.hw_value_short = 0x80, },
|
|
{ .bitrate = 240,
|
|
.hw_value = 0x200,
|
|
.hw_value_short = 0x200, },
|
|
{ .bitrate = 360,
|
|
.hw_value = 0x400,
|
|
.hw_value_short = 0x400, },
|
|
{ .bitrate = 480,
|
|
.hw_value = 0x800,
|
|
.hw_value_short = 0x800, },
|
|
{ .bitrate = 540,
|
|
.hw_value = 0x1000,
|
|
.hw_value_short = 0x1000, },
|
|
};
|
|
|
|
/* can't be const, mac80211 writes to this */
|
|
static struct ieee80211_channel wl1251_channels[] = {
|
|
{ .hw_value = 1, .center_freq = 2412},
|
|
{ .hw_value = 2, .center_freq = 2417},
|
|
{ .hw_value = 3, .center_freq = 2422},
|
|
{ .hw_value = 4, .center_freq = 2427},
|
|
{ .hw_value = 5, .center_freq = 2432},
|
|
{ .hw_value = 6, .center_freq = 2437},
|
|
{ .hw_value = 7, .center_freq = 2442},
|
|
{ .hw_value = 8, .center_freq = 2447},
|
|
{ .hw_value = 9, .center_freq = 2452},
|
|
{ .hw_value = 10, .center_freq = 2457},
|
|
{ .hw_value = 11, .center_freq = 2462},
|
|
{ .hw_value = 12, .center_freq = 2467},
|
|
{ .hw_value = 13, .center_freq = 2472},
|
|
};
|
|
|
|
static int wl1251_op_conf_tx(struct ieee80211_hw *hw, u16 queue,
|
|
const struct ieee80211_tx_queue_params *params)
|
|
{
|
|
enum wl1251_acx_ps_scheme ps_scheme;
|
|
struct wl1251 *wl = hw->priv;
|
|
int ret;
|
|
|
|
mutex_lock(&wl->mutex);
|
|
|
|
wl1251_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
|
|
|
|
ret = wl1251_ps_elp_wakeup(wl);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
/* mac80211 uses units of 32 usec */
|
|
ret = wl1251_acx_ac_cfg(wl, wl1251_tx_get_queue(queue),
|
|
params->cw_min, params->cw_max,
|
|
params->aifs, params->txop * 32);
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
|
|
if (params->uapsd)
|
|
ps_scheme = WL1251_ACX_PS_SCHEME_UPSD_TRIGGER;
|
|
else
|
|
ps_scheme = WL1251_ACX_PS_SCHEME_LEGACY;
|
|
|
|
ret = wl1251_acx_tid_cfg(wl, wl1251_tx_get_queue(queue),
|
|
CHANNEL_TYPE_EDCF,
|
|
wl1251_tx_get_queue(queue), ps_scheme,
|
|
WL1251_ACX_ACK_POLICY_LEGACY);
|
|
if (ret < 0)
|
|
goto out_sleep;
|
|
|
|
out_sleep:
|
|
wl1251_ps_elp_sleep(wl);
|
|
|
|
out:
|
|
mutex_unlock(&wl->mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int wl1251_op_get_survey(struct ieee80211_hw *hw, int idx,
|
|
struct survey_info *survey)
|
|
{
|
|
struct wl1251 *wl = hw->priv;
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
|
|
if (idx != 0)
|
|
return -ENOENT;
|
|
|
|
survey->channel = conf->channel;
|
|
survey->filled = SURVEY_INFO_NOISE_DBM;
|
|
survey->noise = wl->noise;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* can't be const, mac80211 writes to this */
|
|
static struct ieee80211_supported_band wl1251_band_2ghz = {
|
|
.channels = wl1251_channels,
|
|
.n_channels = ARRAY_SIZE(wl1251_channels),
|
|
.bitrates = wl1251_rates,
|
|
.n_bitrates = ARRAY_SIZE(wl1251_rates),
|
|
};
|
|
|
|
static const struct ieee80211_ops wl1251_ops = {
|
|
.start = wl1251_op_start,
|
|
.stop = wl1251_op_stop,
|
|
.add_interface = wl1251_op_add_interface,
|
|
.remove_interface = wl1251_op_remove_interface,
|
|
.config = wl1251_op_config,
|
|
.configure_filter = wl1251_op_configure_filter,
|
|
.tx = wl1251_op_tx,
|
|
.set_key = wl1251_op_set_key,
|
|
.hw_scan = wl1251_op_hw_scan,
|
|
.bss_info_changed = wl1251_op_bss_info_changed,
|
|
.set_rts_threshold = wl1251_op_set_rts_threshold,
|
|
.conf_tx = wl1251_op_conf_tx,
|
|
.get_survey = wl1251_op_get_survey,
|
|
};
|
|
|
|
static int wl1251_read_eeprom_byte(struct wl1251 *wl, off_t offset, u8 *data)
|
|
{
|
|
unsigned long timeout;
|
|
|
|
wl1251_reg_write32(wl, EE_ADDR, offset);
|
|
wl1251_reg_write32(wl, EE_CTL, EE_CTL_READ);
|
|
|
|
/* EE_CTL_READ clears when data is ready */
|
|
timeout = jiffies + msecs_to_jiffies(100);
|
|
while (1) {
|
|
if (!(wl1251_reg_read32(wl, EE_CTL) & EE_CTL_READ))
|
|
break;
|
|
|
|
if (time_after(jiffies, timeout))
|
|
return -ETIMEDOUT;
|
|
|
|
msleep(1);
|
|
}
|
|
|
|
*data = wl1251_reg_read32(wl, EE_DATA);
|
|
return 0;
|
|
}
|
|
|
|
static int wl1251_read_eeprom(struct wl1251 *wl, off_t offset,
|
|
u8 *data, size_t len)
|
|
{
|
|
size_t i;
|
|
int ret;
|
|
|
|
wl1251_reg_write32(wl, EE_START, 0);
|
|
|
|
for (i = 0; i < len; i++) {
|
|
ret = wl1251_read_eeprom_byte(wl, offset + i, &data[i]);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl1251_read_eeprom_mac(struct wl1251 *wl)
|
|
{
|
|
u8 mac[ETH_ALEN];
|
|
int i, ret;
|
|
|
|
wl1251_set_partition(wl, 0, 0, REGISTERS_BASE, REGISTERS_DOWN_SIZE);
|
|
|
|
ret = wl1251_read_eeprom(wl, 0x1c, mac, sizeof(mac));
|
|
if (ret < 0) {
|
|
wl1251_warning("failed to read MAC address from EEPROM");
|
|
return ret;
|
|
}
|
|
|
|
/* MAC is stored in reverse order */
|
|
for (i = 0; i < ETH_ALEN; i++)
|
|
wl->mac_addr[i] = mac[ETH_ALEN - i - 1];
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl1251_register_hw(struct wl1251 *wl)
|
|
{
|
|
int ret;
|
|
|
|
if (wl->mac80211_registered)
|
|
return 0;
|
|
|
|
SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
|
|
|
|
ret = ieee80211_register_hw(wl->hw);
|
|
if (ret < 0) {
|
|
wl1251_error("unable to register mac80211 hw: %d", ret);
|
|
return ret;
|
|
}
|
|
|
|
wl->mac80211_registered = true;
|
|
|
|
wl1251_notice("loaded");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int wl1251_init_ieee80211(struct wl1251 *wl)
|
|
{
|
|
int ret;
|
|
|
|
/* The tx descriptor buffer and the TKIP space */
|
|
wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc)
|
|
+ WL1251_TKIP_IV_SPACE;
|
|
|
|
/* unit us */
|
|
/* FIXME: find a proper value */
|
|
wl->hw->channel_change_time = 10000;
|
|
|
|
wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
|
|
IEEE80211_HW_SUPPORTS_PS |
|
|
IEEE80211_HW_BEACON_FILTER |
|
|
IEEE80211_HW_SUPPORTS_UAPSD;
|
|
|
|
wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
|
|
wl->hw->wiphy->max_scan_ssids = 1;
|
|
wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1251_band_2ghz;
|
|
|
|
wl->hw->queues = 4;
|
|
|
|
if (wl->use_eeprom)
|
|
wl1251_read_eeprom_mac(wl);
|
|
|
|
ret = wl1251_register_hw(wl);
|
|
if (ret)
|
|
goto out;
|
|
|
|
wl1251_debugfs_init(wl);
|
|
wl1251_notice("initialized");
|
|
|
|
ret = 0;
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(wl1251_init_ieee80211);
|
|
|
|
struct ieee80211_hw *wl1251_alloc_hw(void)
|
|
{
|
|
struct ieee80211_hw *hw;
|
|
struct wl1251 *wl;
|
|
int i;
|
|
static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf};
|
|
|
|
hw = ieee80211_alloc_hw(sizeof(*wl), &wl1251_ops);
|
|
if (!hw) {
|
|
wl1251_error("could not alloc ieee80211_hw");
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
wl = hw->priv;
|
|
memset(wl, 0, sizeof(*wl));
|
|
|
|
wl->hw = hw;
|
|
|
|
wl->data_in_count = 0;
|
|
|
|
skb_queue_head_init(&wl->tx_queue);
|
|
|
|
INIT_WORK(&wl->filter_work, wl1251_filter_work);
|
|
INIT_DELAYED_WORK(&wl->elp_work, wl1251_elp_work);
|
|
wl->channel = WL1251_DEFAULT_CHANNEL;
|
|
wl->scanning = false;
|
|
wl->default_key = 0;
|
|
wl->listen_int = 1;
|
|
wl->rx_counter = 0;
|
|
wl->rx_handled = 0;
|
|
wl->rx_current_buffer = 0;
|
|
wl->rx_last_id = 0;
|
|
wl->rx_config = WL1251_DEFAULT_RX_CONFIG;
|
|
wl->rx_filter = WL1251_DEFAULT_RX_FILTER;
|
|
wl->elp = false;
|
|
wl->psm = 0;
|
|
wl->psm_requested = false;
|
|
wl->tx_queue_stopped = false;
|
|
wl->power_level = WL1251_DEFAULT_POWER_LEVEL;
|
|
wl->beacon_int = WL1251_DEFAULT_BEACON_INT;
|
|
wl->dtim_period = WL1251_DEFAULT_DTIM_PERIOD;
|
|
wl->vif = NULL;
|
|
|
|
for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++)
|
|
wl->tx_frames[i] = NULL;
|
|
|
|
wl->next_tx_complete = 0;
|
|
|
|
INIT_WORK(&wl->irq_work, wl1251_irq_work);
|
|
INIT_WORK(&wl->tx_work, wl1251_tx_work);
|
|
|
|
/*
|
|
* In case our MAC address is not correctly set,
|
|
* we use a random but Nokia MAC.
|
|
*/
|
|
memcpy(wl->mac_addr, nokia_oui, 3);
|
|
get_random_bytes(wl->mac_addr + 3, 3);
|
|
|
|
wl->state = WL1251_STATE_OFF;
|
|
mutex_init(&wl->mutex);
|
|
|
|
wl->tx_mgmt_frm_rate = DEFAULT_HW_GEN_TX_RATE;
|
|
wl->tx_mgmt_frm_mod = DEFAULT_HW_GEN_MODULATION_TYPE;
|
|
|
|
wl->rx_descriptor = kmalloc(sizeof(*wl->rx_descriptor), GFP_KERNEL);
|
|
if (!wl->rx_descriptor) {
|
|
wl1251_error("could not allocate memory for rx descriptor");
|
|
ieee80211_free_hw(hw);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
return hw;
|
|
}
|
|
EXPORT_SYMBOL_GPL(wl1251_alloc_hw);
|
|
|
|
int wl1251_free_hw(struct wl1251 *wl)
|
|
{
|
|
ieee80211_unregister_hw(wl->hw);
|
|
|
|
wl1251_debugfs_exit(wl);
|
|
|
|
kfree(wl->target_mem_map);
|
|
kfree(wl->data_path);
|
|
vfree(wl->fw);
|
|
wl->fw = NULL;
|
|
kfree(wl->nvs);
|
|
wl->nvs = NULL;
|
|
|
|
kfree(wl->rx_descriptor);
|
|
wl->rx_descriptor = NULL;
|
|
|
|
ieee80211_free_hw(wl->hw);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(wl1251_free_hw);
|
|
|
|
MODULE_DESCRIPTION("TI wl1251 Wireles LAN Driver Core");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Kalle Valo <kvalo@adurom.com>");
|
|
MODULE_FIRMWARE(WL1251_FW_NAME);
|