diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800pci.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800pci.c | 124 |
1 files changed, 67 insertions, 57 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c index 91cce2d..2131f8f 100644 --- a/drivers/net/wireless/rt2x00/rt2800pci.c +++ b/drivers/net/wireless/rt2x00/rt2800pci.c @@ -60,6 +60,12 @@ static void rt2800pci_mcu_status(struct rt2x00_dev *rt2x00dev, const u8 token) unsigned int i; u32 reg; + /* + * SOC devices don't support MCU requests. + */ + if (rt2x00_is_soc(rt2x00dev)) + return; + for (i = 0; i < 200; i++) { rt2800_register_read(rt2x00dev, H2M_MAILBOX_CID, ®); @@ -341,19 +347,6 @@ static int rt2800pci_init_queues(struct rt2x00_dev *rt2x00dev) struct queue_entry_priv_pci *entry_priv; u32 reg; - rt2800_register_read(rt2x00dev, WPDMA_RST_IDX, ®); - rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX0, 1); - rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX1, 1); - rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX2, 1); - rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX3, 1); - rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX4, 1); - rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX5, 1); - rt2x00_set_field32(®, WPDMA_RST_IDX_DRX_IDX0, 1); - rt2800_register_write(rt2x00dev, WPDMA_RST_IDX, reg); - - rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e1f); - rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e00); - /* * Initialize registers. */ @@ -907,14 +900,12 @@ static void rt2800pci_txdone(struct rt2x00_dev *rt2x00dev) { struct data_queue *queue; struct queue_entry *entry; - struct queue_entry *entry_done; - struct queue_entry_priv_pci *entry_priv; + __le32 *txwi; struct txdone_entry_desc txdesc; u32 word; u32 reg; u32 old_reg; - unsigned int type; - unsigned int index; + int wcid, ack, pid, tx_wcid, tx_ack, tx_pid; u16 mcs, real_mcs; /* @@ -936,76 +927,89 @@ static void rt2800pci_txdone(struct rt2x00_dev *rt2x00dev) break; old_reg = reg; + wcid = rt2x00_get_field32(reg, TX_STA_FIFO_WCID); + ack = rt2x00_get_field32(reg, TX_STA_FIFO_TX_ACK_REQUIRED); + pid = rt2x00_get_field32(reg, TX_STA_FIFO_PID_TYPE); + /* * Skip this entry when it contains an invalid * queue identication number. */ - type = rt2x00_get_field32(reg, TX_STA_FIFO_PID_TYPE) - 1; - if (type >= QID_RX) + if (pid <= 0 || pid > QID_RX) continue; - queue = rt2x00queue_get_queue(rt2x00dev, type); + queue = rt2x00queue_get_queue(rt2x00dev, pid - 1); if (unlikely(!queue)) continue; /* - * Skip this entry when it contains an invalid - * index number. + * Inside each queue, we process each entry in a chronological + * order. We first check that the queue is not empty. */ - index = rt2x00_get_field32(reg, TX_STA_FIFO_WCID) - 1; - if (unlikely(index >= queue->limit)) + if (rt2x00queue_empty(queue)) continue; + entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE); - entry = &queue->entries[index]; - entry_priv = entry->priv_data; - rt2x00_desc_read((__le32 *)entry->skb->data, 0, &word); + /* Check if we got a match by looking at WCID/ACK/PID + * fields */ + txwi = (__le32 *)(entry->skb->data - + rt2x00dev->ops->extra_tx_headroom); - entry_done = rt2x00queue_get_entry(queue, Q_INDEX_DONE); - while (entry != entry_done) { - /* - * Catch up. - * Just report any entries we missed as failed. - */ - WARNING(rt2x00dev, - "TX status report missed for entry %d\n", - entry_done->entry_idx); + rt2x00_desc_read(txwi, 1, &word); + tx_wcid = rt2x00_get_field32(word, TXWI_W1_WIRELESS_CLI_ID); + tx_ack = rt2x00_get_field32(word, TXWI_W1_ACK); + tx_pid = rt2x00_get_field32(word, TXWI_W1_PACKETID); - txdesc.flags = 0; - __set_bit(TXDONE_UNKNOWN, &txdesc.flags); - txdesc.retry = 0; - - rt2x00lib_txdone(entry_done, &txdesc); - entry_done = rt2x00queue_get_entry(queue, Q_INDEX_DONE); - } + if ((wcid != tx_wcid) || (ack != tx_ack) || (pid != tx_pid)) + WARNING(rt2x00dev, "invalid TX_STA_FIFO content\n"); /* * Obtain the status about this packet. */ txdesc.flags = 0; - if (rt2x00_get_field32(reg, TX_STA_FIFO_TX_SUCCESS)) - __set_bit(TXDONE_SUCCESS, &txdesc.flags); - else - __set_bit(TXDONE_FAILURE, &txdesc.flags); + rt2x00_desc_read(txwi, 0, &word); + mcs = rt2x00_get_field32(word, TXWI_W0_MCS); + real_mcs = rt2x00_get_field32(reg, TX_STA_FIFO_MCS); /* * Ralink has a retry mechanism using a global fallback - * table. We setup this fallback table to try immediate - * lower rate for all rates. In the TX_STA_FIFO, - * the MCS field contains the MCS used for the successfull - * transmission. If the first transmission succeed, - * we have mcs == tx_mcs. On the second transmission, - * we have mcs = tx_mcs - 1. So the number of - * retry is (tx_mcs - mcs). + * table. We setup this fallback table to try the immediate + * lower rate for all rates. In the TX_STA_FIFO, the MCS field + * always contains the MCS used for the last transmission, be + * it successful or not. */ - mcs = rt2x00_get_field32(word, TXWI_W0_MCS); - real_mcs = rt2x00_get_field32(reg, TX_STA_FIFO_MCS); + if (rt2x00_get_field32(reg, TX_STA_FIFO_TX_SUCCESS)) { + /* + * Transmission succeeded. The number of retries is + * mcs - real_mcs + */ + __set_bit(TXDONE_SUCCESS, &txdesc.flags); + txdesc.retry = ((mcs > real_mcs) ? mcs - real_mcs : 0); + } else { + /* + * Transmission failed. The number of retries is + * always 7 in this case (for a total number of 8 + * frames sent). + */ + __set_bit(TXDONE_FAILURE, &txdesc.flags); + txdesc.retry = 7; + } + __set_bit(TXDONE_FALLBACK, &txdesc.flags); - txdesc.retry = mcs - min(mcs, real_mcs); + rt2x00lib_txdone(entry, &txdesc); } } +static void rt2800pci_wakeup(struct rt2x00_dev *rt2x00dev) +{ + struct ieee80211_conf conf = { .flags = 0 }; + struct rt2x00lib_conf libconf = { .conf = &conf }; + + rt2800_config(rt2x00dev, &libconf, IEEE80211_CONF_CHANGE_PS); +} + static irqreturn_t rt2800pci_interrupt(int irq, void *dev_instance) { struct rt2x00_dev *rt2x00dev = dev_instance; @@ -1030,6 +1034,9 @@ static irqreturn_t rt2800pci_interrupt(int irq, void *dev_instance) if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TX_FIFO_STATUS)) rt2800pci_txdone(rt2x00dev); + if (rt2x00_get_field32(reg, INT_SOURCE_CSR_AUTO_WAKEUP)) + rt2800pci_wakeup(rt2x00dev); + return IRQ_HANDLED; } @@ -1184,6 +1191,7 @@ static const struct rt2x00_ops rt2800pci_ops = { /* * RT2800pci module information. */ +#ifdef CONFIG_RT2800PCI_PCI static DEFINE_PCI_DEVICE_TABLE(rt2800pci_device_table) = { { PCI_DEVICE(0x1814, 0x0601), PCI_DEVICE_DATA(&rt2800pci_ops) }, { PCI_DEVICE(0x1814, 0x0681), PCI_DEVICE_DATA(&rt2800pci_ops) }, @@ -1208,9 +1216,11 @@ static DEFINE_PCI_DEVICE_TABLE(rt2800pci_device_table) = { { PCI_DEVICE(0x1814, 0x3062), PCI_DEVICE_DATA(&rt2800pci_ops) }, { PCI_DEVICE(0x1814, 0x3562), PCI_DEVICE_DATA(&rt2800pci_ops) }, { PCI_DEVICE(0x1814, 0x3592), PCI_DEVICE_DATA(&rt2800pci_ops) }, + { PCI_DEVICE(0x1814, 0x3593), PCI_DEVICE_DATA(&rt2800pci_ops) }, #endif { 0, } }; +#endif /* CONFIG_RT2800PCI_PCI */ MODULE_AUTHOR(DRV_PROJECT); MODULE_VERSION(DRV_VERSION); |