projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 0597c014 CL |
1 | /* |
| 2 | * Common code for mac80211 Prism54 drivers | |
| 3 | * | |
| 4 | * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net> | |
| 5 | * Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de> | |
| 6 | * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> | |
| 7 | * | |
| 8 | * Based on: | |
| 9 | * - the islsm (softmac prism54) driver, which is: | |
| 10 | * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al. | |
| 11 | * - stlc45xx driver | |
| 12 | * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies). | |
| 13 | * | |
| 14 | * This program is free software; you can redistribute it and/or modify | |
| 15 | * it under the terms of the GNU General Public License version 2 as | |
| 16 | * published by the Free Software Foundation. | |
| 17 | */ | |
| 18 | ||
| 19 | #include <linux/init.h> | |
| 20 | #include <linux/firmware.h> | |
| 21 | #include <linux/etherdevice.h> | |
| 22 | ||
| 23 | #include <net/mac80211.h> | |
| 24 | #ifdef CONFIG_P54_LEDS | |
| 25 | #include <linux/leds.h> | |
| 26 | #endif /* CONFIG_P54_LEDS */ | |
| 27 | ||
| 28 | #include "p54.h" | |
| 29 | #include "lmac.h" | |
| 30 | ||
| 31 | static void p54_update_leds(struct work_struct *work) | |
| 32 | { | |
| 33 | struct p54_common *priv = container_of(work, struct p54_common, | |
| 34 | led_work.work); | |
| 35 | int err, i, tmp, blink_delay = 400; | |
| 36 | bool rerun = false; | |
| 37 | ||
| 38 | /* Don't toggle the LED, when the device is down. */ | |
| 39 | if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) | |
| 40 | return ; | |
| 41 | ||
| 42 | for (i = 0; i < ARRAY_SIZE(priv->leds); i++) | |
| 43 | if (priv->leds[i].toggled) { | |
| 44 | priv->softled_state |= BIT(i); | |
| 45 | ||
| 46 | tmp = 70 + 200 / (priv->leds[i].toggled); | |
| 47 | if (tmp < blink_delay) | |
| 48 | blink_delay = tmp; | |
| 49 | ||
| 50 | if (priv->leds[i].led_dev.brightness == LED_OFF) | |
| 51 | rerun = true; | |
| 52 | ||
| 53 | priv->leds[i].toggled = | |
| 54 | !!priv->leds[i].led_dev.brightness; | |
| 55 | } else | |
| 56 | priv->softled_state &= ~BIT(i); | |
| 57 | ||
| 58 | err = p54_set_leds(priv); | |
| 59 | if (err && net_ratelimit()) | |
| 60 | printk(KERN_ERR "%s: failed to update LEDs (%d).\n", | |
| 61 | wiphy_name(priv->hw->wiphy), err); | |
| 62 | ||
| 63 | if (rerun) | |
| 42935eca | 64 | ieee80211_queue_delayed_work(priv->hw, &priv->led_work, |
| 0597c014 CL |
65 | msecs_to_jiffies(blink_delay)); |
| 66 | } | |
| 67 | ||
| 68 | static void p54_led_brightness_set(struct led_classdev *led_dev, | |
| 69 | enum led_brightness brightness) | |
| 70 | { | |
| 71 | struct p54_led_dev *led = container_of(led_dev, struct p54_led_dev, | |
| 72 | led_dev); | |
| 73 | struct ieee80211_hw *dev = led->hw_dev; | |
| 74 | struct p54_common *priv = dev->priv; | |
| 75 | ||
| 76 | if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) | |
| 77 | return ; | |
| 78 | ||
| 79 | if ((brightness) && (led->registered)) { | |
| 80 | led->toggled++; | |
| 42935eca | 81 | ieee80211_queue_delayed_work(priv->hw, &priv->led_work, HZ/10); |
| 0597c014 CL |
82 | } |
| 83 | } | |
| 84 | ||
| 85 | static int p54_register_led(struct p54_common *priv, | |
| 86 | unsigned int led_index, | |
| 87 | char *name, char *trigger) | |
| 88 | { | |
| 89 | struct p54_led_dev *led = &priv->leds[led_index]; | |
| 90 | int err; | |
| 91 | ||
| 92 | if (led->registered) | |
| 93 | return -EEXIST; | |
| 94 | ||
| 95 | snprintf(led->name, sizeof(led->name), "p54-%s::%s", | |
| 96 | wiphy_name(priv->hw->wiphy), name); | |
| 97 | led->hw_dev = priv->hw; | |
| 98 | led->index = led_index; | |
| 99 | led->led_dev.name = led->name; | |
| 100 | led->led_dev.default_trigger = trigger; | |
| 101 | led->led_dev.brightness_set = p54_led_brightness_set; | |
| 102 | ||
| 103 | err = led_classdev_register(wiphy_dev(priv->hw->wiphy), &led->led_dev); | |
| 104 | if (err) | |
| 105 | printk(KERN_ERR "%s: Failed to register %s LED.\n", | |
| 106 | wiphy_name(priv->hw->wiphy), name); | |
| 107 | else | |
| 108 | led->registered = 1; | |
| 109 | ||
| 110 | return err; | |
| 111 | } | |
| 112 | ||
| 113 | int p54_init_leds(struct p54_common *priv) | |
| 114 | { | |
| 115 | int err; | |
| 116 | ||
| 117 | /* | |
| 118 | * TODO: | |
| 119 | * Figure out if the EEPROM contains some hints about the number | |
| 120 | * of available/programmable LEDs of the device. | |
| 121 | */ | |
| 122 | ||
| 123 | INIT_DELAYED_WORK(&priv->led_work, p54_update_leds); | |
| 124 | ||
| 125 | err = p54_register_led(priv, 0, "assoc", | |
| 126 | ieee80211_get_assoc_led_name(priv->hw)); | |
| 127 | if (err) | |
| 128 | return err; | |
| 129 | ||
| 130 | err = p54_register_led(priv, 1, "tx", | |
| 131 | ieee80211_get_tx_led_name(priv->hw)); | |
| 132 | if (err) | |
| 133 | return err; | |
| 134 | ||
| 135 | err = p54_register_led(priv, 2, "rx", | |
| 136 | ieee80211_get_rx_led_name(priv->hw)); | |
| 137 | if (err) | |
| 138 | return err; | |
| 139 | ||
| 140 | err = p54_register_led(priv, 3, "radio", | |
| 141 | ieee80211_get_radio_led_name(priv->hw)); | |
| 142 | if (err) | |
| 143 | return err; | |
| 144 | ||
| 145 | err = p54_set_leds(priv); | |
| 146 | return err; | |
| 147 | } | |
| 148 | ||
| 149 | void p54_unregister_leds(struct p54_common *priv) | |
| 150 | { | |
| 151 | int i; | |
| 152 | ||
| 153 | for (i = 0; i < ARRAY_SIZE(priv->leds); i++) { | |
| 154 | if (priv->leds[i].registered) { | |
| 155 | priv->leds[i].registered = false; | |
| 156 | priv->leds[i].toggled = 0; | |
| 157 | led_classdev_unregister(&priv->leds[i].led_dev); | |
| 158 | } | |
| 159 | } | |
| 160 | ||
| 161 | cancel_delayed_work_sync(&priv->led_work); | |
| 162 | } |