forked from Minki/linux
247c61d625
Before this patch, the upper layer could register a callback for each host command. This mechanism allowed the upper layer to have different callbacks for the same command ID. In fact, it wasn't used and the rx_handlers is enough: same callback for all the command with a specific command ID. The iwl_send_add_station needs the access the command that was sent while handling the response (regardless if the command was sent in SYNC or ASYNC mode). So now, all the handlers receive the host command that was sent. This implies a change in the handler signature. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
223 lines
6.0 KiB
C
223 lines
6.0 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* 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 WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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*****************************************************************************/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <net/mac80211.h>
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#include <linux/etherdevice.h>
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#include <asm/unaligned.h>
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#include "iwl-dev.h"
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#include "iwl-core.h"
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#include "iwl-agn.h"
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#include "iwl-io.h"
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#include "iwl-trans.h"
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#include "iwl-shared.h"
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/* Throughput OFF time(ms) ON time (ms)
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* >300 25 25
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* >200 to 300 40 40
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* >100 to 200 55 55
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* >70 to 100 65 65
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* >50 to 70 75 75
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* >20 to 50 85 85
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* >10 to 20 95 95
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* >5 to 10 110 110
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* >1 to 5 130 130
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* >0 to 1 167 167
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* <=0 SOLID ON
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*/
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static const struct ieee80211_tpt_blink iwl_blink[] = {
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{ .throughput = 0, .blink_time = 334 },
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{ .throughput = 1 * 1024 - 1, .blink_time = 260 },
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{ .throughput = 5 * 1024 - 1, .blink_time = 220 },
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{ .throughput = 10 * 1024 - 1, .blink_time = 190 },
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{ .throughput = 20 * 1024 - 1, .blink_time = 170 },
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{ .throughput = 50 * 1024 - 1, .blink_time = 150 },
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{ .throughput = 70 * 1024 - 1, .blink_time = 130 },
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{ .throughput = 100 * 1024 - 1, .blink_time = 110 },
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{ .throughput = 200 * 1024 - 1, .blink_time = 80 },
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{ .throughput = 300 * 1024 - 1, .blink_time = 50 },
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};
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/* Set led register off */
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void iwlagn_led_enable(struct iwl_priv *priv)
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{
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iwl_write32(bus(priv), CSR_LED_REG, CSR_LED_REG_TRUN_ON);
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}
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/*
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* Adjust led blink rate to compensate on a MAC Clock difference on every HW
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* Led blink rate analysis showed an average deviation of 20% on 5000 series
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* and up.
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* Need to compensate on the led on/off time per HW according to the deviation
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* to achieve the desired led frequency
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* The calculation is: (100-averageDeviation)/100 * blinkTime
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* For code efficiency the calculation will be:
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* compensation = (100 - averageDeviation) * 64 / 100
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* NewBlinkTime = (compensation * BlinkTime) / 64
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*/
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static inline u8 iwl_blink_compensation(struct iwl_priv *priv,
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u8 time, u16 compensation)
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{
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if (!compensation) {
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IWL_ERR(priv, "undefined blink compensation: "
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"use pre-defined blinking time\n");
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return time;
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}
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return (u8)((time * compensation) >> 6);
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}
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static int iwl_send_led_cmd(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd)
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{
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struct iwl_host_cmd cmd = {
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.id = REPLY_LEDS_CMD,
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.len = { sizeof(struct iwl_led_cmd), },
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.data = { led_cmd, },
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.flags = CMD_ASYNC,
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};
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u32 reg;
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reg = iwl_read32(bus(priv), CSR_LED_REG);
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if (reg != (reg & CSR_LED_BSM_CTRL_MSK))
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iwl_write32(bus(priv), CSR_LED_REG, reg & CSR_LED_BSM_CTRL_MSK);
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return iwl_trans_send_cmd(trans(priv), &cmd);
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}
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/* Set led pattern command */
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static int iwl_led_cmd(struct iwl_priv *priv,
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unsigned long on,
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unsigned long off)
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{
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struct iwl_led_cmd led_cmd = {
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.id = IWL_LED_LINK,
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.interval = IWL_DEF_LED_INTRVL
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};
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int ret;
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if (!test_bit(STATUS_READY, &priv->shrd->status))
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return -EBUSY;
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if (priv->blink_on == on && priv->blink_off == off)
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return 0;
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if (off == 0) {
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/* led is SOLID_ON */
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on = IWL_LED_SOLID;
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}
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IWL_DEBUG_LED(priv, "Led blink time compensation=%u\n",
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priv->cfg->base_params->led_compensation);
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led_cmd.on = iwl_blink_compensation(priv, on,
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priv->cfg->base_params->led_compensation);
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led_cmd.off = iwl_blink_compensation(priv, off,
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priv->cfg->base_params->led_compensation);
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ret = iwl_send_led_cmd(priv, &led_cmd);
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if (!ret) {
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priv->blink_on = on;
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priv->blink_off = off;
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}
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return ret;
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}
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static void iwl_led_brightness_set(struct led_classdev *led_cdev,
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enum led_brightness brightness)
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{
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struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led);
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unsigned long on = 0;
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if (brightness > 0)
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on = IWL_LED_SOLID;
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iwl_led_cmd(priv, on, 0);
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}
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static int iwl_led_blink_set(struct led_classdev *led_cdev,
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unsigned long *delay_on,
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unsigned long *delay_off)
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{
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struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led);
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return iwl_led_cmd(priv, *delay_on, *delay_off);
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}
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void iwl_leds_init(struct iwl_priv *priv)
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{
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int mode = iwlagn_mod_params.led_mode;
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int ret;
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if (mode == IWL_LED_DEFAULT)
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mode = priv->cfg->led_mode;
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priv->led.name = kasprintf(GFP_KERNEL, "%s-led",
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wiphy_name(priv->hw->wiphy));
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priv->led.brightness_set = iwl_led_brightness_set;
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priv->led.blink_set = iwl_led_blink_set;
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priv->led.max_brightness = 1;
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switch (mode) {
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case IWL_LED_DEFAULT:
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WARN_ON(1);
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break;
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case IWL_LED_BLINK:
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priv->led.default_trigger =
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ieee80211_create_tpt_led_trigger(priv->hw,
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IEEE80211_TPT_LEDTRIG_FL_CONNECTED,
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iwl_blink, ARRAY_SIZE(iwl_blink));
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break;
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case IWL_LED_RF_STATE:
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priv->led.default_trigger =
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ieee80211_get_radio_led_name(priv->hw);
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break;
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}
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ret = led_classdev_register(priv->bus->dev,
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&priv->led);
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if (ret) {
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kfree(priv->led.name);
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return;
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}
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priv->led_registered = true;
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}
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void iwl_leds_exit(struct iwl_priv *priv)
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{
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if (!priv->led_registered)
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return;
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led_classdev_unregister(&priv->led);
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kfree(priv->led.name);
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}
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