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path: root/drivers/net/wireless/zd1211rw/zd_mac.c
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-rw-r--r--drivers/net/wireless/zd1211rw/zd_mac.c241
1 files changed, 146 insertions, 95 deletions
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index 76ef2d83919d..69c45ca99051 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -34,76 +34,61 @@
/* This table contains the hardware specific values for the modulation rates. */
static const struct ieee80211_rate zd_rates[] = {
- { .rate = 10,
- .val = ZD_CCK_RATE_1M,
- .flags = IEEE80211_RATE_CCK },
- { .rate = 20,
- .val = ZD_CCK_RATE_2M,
- .val2 = ZD_CCK_RATE_2M | ZD_CCK_PREA_SHORT,
- .flags = IEEE80211_RATE_CCK_2 },
- { .rate = 55,
- .val = ZD_CCK_RATE_5_5M,
- .val2 = ZD_CCK_RATE_5_5M | ZD_CCK_PREA_SHORT,
- .flags = IEEE80211_RATE_CCK_2 },
- { .rate = 110,
- .val = ZD_CCK_RATE_11M,
- .val2 = ZD_CCK_RATE_11M | ZD_CCK_PREA_SHORT,
- .flags = IEEE80211_RATE_CCK_2 },
- { .rate = 60,
- .val = ZD_OFDM_RATE_6M,
- .flags = IEEE80211_RATE_OFDM },
- { .rate = 90,
- .val = ZD_OFDM_RATE_9M,
- .flags = IEEE80211_RATE_OFDM },
- { .rate = 120,
- .val = ZD_OFDM_RATE_12M,
- .flags = IEEE80211_RATE_OFDM },
- { .rate = 180,
- .val = ZD_OFDM_RATE_18M,
- .flags = IEEE80211_RATE_OFDM },
- { .rate = 240,
- .val = ZD_OFDM_RATE_24M,
- .flags = IEEE80211_RATE_OFDM },
- { .rate = 360,
- .val = ZD_OFDM_RATE_36M,
- .flags = IEEE80211_RATE_OFDM },
- { .rate = 480,
- .val = ZD_OFDM_RATE_48M,
- .flags = IEEE80211_RATE_OFDM },
- { .rate = 540,
- .val = ZD_OFDM_RATE_54M,
- .flags = IEEE80211_RATE_OFDM },
+ { .bitrate = 10,
+ .hw_value = ZD_CCK_RATE_1M, },
+ { .bitrate = 20,
+ .hw_value = ZD_CCK_RATE_2M,
+ .hw_value_short = ZD_CCK_RATE_2M | ZD_CCK_PREA_SHORT,
+ .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+ { .bitrate = 55,
+ .hw_value = ZD_CCK_RATE_5_5M,
+ .hw_value_short = ZD_CCK_RATE_5_5M | ZD_CCK_PREA_SHORT,
+ .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+ { .bitrate = 110,
+ .hw_value = ZD_CCK_RATE_11M,
+ .hw_value_short = ZD_CCK_RATE_11M | ZD_CCK_PREA_SHORT,
+ .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+ { .bitrate = 60,
+ .hw_value = ZD_OFDM_RATE_6M,
+ .flags = 0 },
+ { .bitrate = 90,
+ .hw_value = ZD_OFDM_RATE_9M,
+ .flags = 0 },
+ { .bitrate = 120,
+ .hw_value = ZD_OFDM_RATE_12M,
+ .flags = 0 },
+ { .bitrate = 180,
+ .hw_value = ZD_OFDM_RATE_18M,
+ .flags = 0 },
+ { .bitrate = 240,
+ .hw_value = ZD_OFDM_RATE_24M,
+ .flags = 0 },
+ { .bitrate = 360,
+ .hw_value = ZD_OFDM_RATE_36M,
+ .flags = 0 },
+ { .bitrate = 480,
+ .hw_value = ZD_OFDM_RATE_48M,
+ .flags = 0 },
+ { .bitrate = 540,
+ .hw_value = ZD_OFDM_RATE_54M,
+ .flags = 0 },
};
static const struct ieee80211_channel zd_channels[] = {
- { .chan = 1,
- .freq = 2412},
- { .chan = 2,
- .freq = 2417},
- { .chan = 3,
- .freq = 2422},
- { .chan = 4,
- .freq = 2427},
- { .chan = 5,
- .freq = 2432},
- { .chan = 6,
- .freq = 2437},
- { .chan = 7,
- .freq = 2442},
- { .chan = 8,
- .freq = 2447},
- { .chan = 9,
- .freq = 2452},
- { .chan = 10,
- .freq = 2457},
- { .chan = 11,
- .freq = 2462},
- { .chan = 12,
- .freq = 2467},
- { .chan = 13,
- .freq = 2472},
- { .chan = 14,
- .freq = 2484}
+ { .center_freq = 2412, .hw_value = 1 },
+ { .center_freq = 2417, .hw_value = 2 },
+ { .center_freq = 2422, .hw_value = 3 },
+ { .center_freq = 2427, .hw_value = 4 },
+ { .center_freq = 2432, .hw_value = 5 },
+ { .center_freq = 2437, .hw_value = 6 },
+ { .center_freq = 2442, .hw_value = 7 },
+ { .center_freq = 2447, .hw_value = 8 },
+ { .center_freq = 2452, .hw_value = 9 },
+ { .center_freq = 2457, .hw_value = 10 },
+ { .center_freq = 2462, .hw_value = 11 },
+ { .center_freq = 2467, .hw_value = 12 },
+ { .center_freq = 2472, .hw_value = 13 },
+ { .center_freq = 2484, .hw_value = 14 },
};
static void housekeeping_init(struct zd_mac *mac);
@@ -490,6 +475,46 @@ static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs,
/* FIXME: Management frame? */
}
+void zd_mac_config_beacon(struct ieee80211_hw *hw, struct sk_buff *beacon)
+{
+ struct zd_mac *mac = zd_hw_mac(hw);
+ u32 tmp, j = 0;
+ /* 4 more bytes for tail CRC */
+ u32 full_len = beacon->len + 4;
+ zd_iowrite32(&mac->chip, CR_BCN_FIFO_SEMAPHORE, 0);
+ zd_ioread32(&mac->chip, CR_BCN_FIFO_SEMAPHORE, &tmp);
+ while (tmp & 0x2) {
+ zd_ioread32(&mac->chip, CR_BCN_FIFO_SEMAPHORE, &tmp);
+ if ((++j % 100) == 0) {
+ printk(KERN_ERR "CR_BCN_FIFO_SEMAPHORE not ready\n");
+ if (j >= 500) {
+ printk(KERN_ERR "Giving up beacon config.\n");
+ return;
+ }
+ }
+ msleep(1);
+ }
+
+ zd_iowrite32(&mac->chip, CR_BCN_FIFO, full_len - 1);
+ if (zd_chip_is_zd1211b(&mac->chip))
+ zd_iowrite32(&mac->chip, CR_BCN_LENGTH, full_len - 1);
+
+ for (j = 0 ; j < beacon->len; j++)
+ zd_iowrite32(&mac->chip, CR_BCN_FIFO,
+ *((u8 *)(beacon->data + j)));
+
+ for (j = 0; j < 4; j++)
+ zd_iowrite32(&mac->chip, CR_BCN_FIFO, 0x0);
+
+ zd_iowrite32(&mac->chip, CR_BCN_FIFO_SEMAPHORE, 1);
+ /* 802.11b/g 2.4G CCK 1Mb
+ * 802.11a, not yet implemented, uses different values (see GPL vendor
+ * driver)
+ */
+ zd_iowrite32(&mac->chip, CR_BCN_PLCP_CFG, 0x00000400 |
+ (full_len << 19));
+}
+
static int fill_ctrlset(struct zd_mac *mac,
struct sk_buff *skb,
struct ieee80211_tx_control *control)
@@ -503,7 +528,9 @@ static int fill_ctrlset(struct zd_mac *mac,
ZD_ASSERT(frag_len <= 0xffff);
- cs->modulation = control->tx_rate;
+ cs->modulation = control->tx_rate->hw_value;
+ if (control->flags & IEEE80211_TXCTL_SHORT_PREAMBLE)
+ cs->modulation = control->tx_rate->hw_value_short;
cs->tx_length = cpu_to_le16(frag_len);
@@ -631,6 +658,8 @@ int zd_mac_rx(struct ieee80211_hw *hw, const u8 *buffer, unsigned int length)
int bad_frame = 0;
u16 fc;
bool is_qos, is_4addr, need_padding;
+ int i;
+ u8 rate;
if (length < ZD_PLCP_HEADER_SIZE + 10 /* IEEE80211_1ADDR_LEN */ +
FCS_LEN + sizeof(struct rx_status))
@@ -660,14 +689,19 @@ int zd_mac_rx(struct ieee80211_hw *hw, const u8 *buffer, unsigned int length)
}
}
- stats.channel = _zd_chip_get_channel(&mac->chip);
- stats.freq = zd_channels[stats.channel - 1].freq;
- stats.phymode = MODE_IEEE80211G;
+ stats.freq = zd_channels[_zd_chip_get_channel(&mac->chip) - 1].center_freq;
+ stats.band = IEEE80211_BAND_2GHZ;
stats.ssi = status->signal_strength;
stats.signal = zd_rx_qual_percent(buffer,
length - sizeof(struct rx_status),
status);
- stats.rate = zd_rx_rate(buffer, status);
+
+ rate = zd_rx_rate(buffer, status);
+
+ /* todo: return index in the big switches in zd_rx_rate instead */
+ for (i = 0; i < mac->band.n_bitrates; i++)
+ if (rate == mac->band.bitrates[i].hw_value)
+ stats.rate_idx = i;
length -= ZD_PLCP_HEADER_SIZE + sizeof(struct rx_status);
buffer += ZD_PLCP_HEADER_SIZE;
@@ -715,6 +749,7 @@ static int zd_op_add_interface(struct ieee80211_hw *hw,
switch (conf->type) {
case IEEE80211_IF_TYPE_MNTR:
+ case IEEE80211_IF_TYPE_MESH_POINT:
case IEEE80211_IF_TYPE_STA:
mac->type = conf->type;
break;
@@ -736,7 +771,7 @@ static void zd_op_remove_interface(struct ieee80211_hw *hw,
static int zd_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
{
struct zd_mac *mac = zd_hw_mac(hw);
- return zd_chip_set_channel(&mac->chip, conf->channel);
+ return zd_chip_set_channel(&mac->chip, conf->channel->hw_value);
}
static int zd_op_config_interface(struct ieee80211_hw *hw,
@@ -744,15 +779,43 @@ static int zd_op_config_interface(struct ieee80211_hw *hw,
struct ieee80211_if_conf *conf)
{
struct zd_mac *mac = zd_hw_mac(hw);
+ int associated;
+
+ if (mac->type == IEEE80211_IF_TYPE_MESH_POINT) {
+ associated = true;
+ if (conf->beacon) {
+ zd_mac_config_beacon(hw, conf->beacon);
+ kfree_skb(conf->beacon);
+ zd_set_beacon_interval(&mac->chip, BCN_MODE_IBSS |
+ hw->conf.beacon_int);
+ }
+ } else
+ associated = is_valid_ether_addr(conf->bssid);
spin_lock_irq(&mac->lock);
- mac->associated = is_valid_ether_addr(conf->bssid);
+ mac->associated = associated;
spin_unlock_irq(&mac->lock);
/* TODO: do hardware bssid filtering */
return 0;
}
+void zd_process_intr(struct work_struct *work)
+{
+ u16 int_status;
+ struct zd_mac *mac = container_of(work, struct zd_mac, process_intr);
+
+ int_status = le16_to_cpu(*(u16 *)(mac->intr_buffer+4));
+ if (int_status & INT_CFG_NEXT_BCN) {
+ if (net_ratelimit())
+ dev_dbg_f(zd_mac_dev(mac), "INT_CFG_NEXT_BCN\n");
+ } else
+ dev_dbg_f(zd_mac_dev(mac), "Unsupported interrupt\n");
+
+ zd_chip_enable_hwint(&mac->chip);
+}
+
+
static void set_multicast_hash_handler(struct work_struct *work)
{
struct zd_mac *mac =
@@ -780,7 +843,7 @@ static void set_rx_filter_handler(struct work_struct *work)
#define SUPPORTED_FIF_FLAGS \
(FIF_PROMISC_IN_BSS | FIF_ALLMULTI | FIF_FCSFAIL | FIF_CONTROL | \
- FIF_OTHER_BSS)
+ FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC)
static void zd_op_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *new_flags,
@@ -894,7 +957,6 @@ struct ieee80211_hw *zd_mac_alloc_hw(struct usb_interface *intf)
{
struct zd_mac *mac;
struct ieee80211_hw *hw;
- int i;
hw = ieee80211_alloc_hw(sizeof(struct zd_mac), &zd_ops);
if (!hw) {
@@ -912,19 +974,15 @@ struct ieee80211_hw *zd_mac_alloc_hw(struct usb_interface *intf)
memcpy(mac->channels, zd_channels, sizeof(zd_channels));
memcpy(mac->rates, zd_rates, sizeof(zd_rates));
- mac->modes[0].mode = MODE_IEEE80211G;
- mac->modes[0].num_rates = ARRAY_SIZE(zd_rates);
- mac->modes[0].rates = mac->rates;
- mac->modes[0].num_channels = ARRAY_SIZE(zd_channels);
- mac->modes[0].channels = mac->channels;
- mac->modes[1].mode = MODE_IEEE80211B;
- mac->modes[1].num_rates = 4;
- mac->modes[1].rates = mac->rates;
- mac->modes[1].num_channels = ARRAY_SIZE(zd_channels);
- mac->modes[1].channels = mac->channels;
+ mac->band.n_bitrates = ARRAY_SIZE(zd_rates);
+ mac->band.bitrates = mac->rates;
+ mac->band.n_channels = ARRAY_SIZE(zd_channels);
+ mac->band.channels = mac->channels;
+
+ hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &mac->band;
hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
- IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED;
+ IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE;
hw->max_rssi = 100;
hw->max_signal = 100;
@@ -933,19 +991,12 @@ struct ieee80211_hw *zd_mac_alloc_hw(struct usb_interface *intf)
skb_queue_head_init(&mac->ack_wait_queue);
- for (i = 0; i < 2; i++) {
- if (ieee80211_register_hwmode(hw, &mac->modes[i])) {
- dev_dbg_f(&intf->dev, "cannot register hwmode\n");
- ieee80211_free_hw(hw);
- return NULL;
- }
- }
-
zd_chip_init(&mac->chip, hw, intf);
housekeeping_init(mac);
INIT_WORK(&mac->set_multicast_hash_work, set_multicast_hash_handler);
INIT_WORK(&mac->set_rts_cts_work, set_rts_cts_work);
INIT_WORK(&mac->set_rx_filter_work, set_rx_filter_handler);
+ INIT_WORK(&mac->process_intr, zd_process_intr);
SET_IEEE80211_DEV(hw, &intf->dev);
return hw;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.