From 144333313b156a9e99d80e39e034a3cba00adeaf Mon Sep 17 00:00:00 2001 From: Helmut Schaa Date: Sat, 2 Oct 2010 11:27:03 +0200 Subject: [PATCH] rt2x00: Split out parts of the rt2800_txdone function for easier reuse Signed-off-by: Helmut Schaa Signed-off-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2800lib.c | 100 +++++++++++++++++--------------- drivers/net/wireless/rt2x00/rt2800lib.h | 1 + 2 files changed, 54 insertions(+), 47 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index daa32ae4..19534f2 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -630,15 +630,63 @@ static bool rt2800_txdone_entry_check(struct queue_entry *entry, u32 reg) return true; } +void rt2800_txdone_entry(struct queue_entry *entry, u32 status) +{ + struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; + struct txdone_entry_desc txdesc; + u32 word; + u16 mcs, real_mcs; + __le32 *txwi; + + /* + * Obtain the status about this packet. + */ + txdesc.flags = 0; + txwi = rt2800_drv_get_txwi(entry); + rt2x00_desc_read(txwi, 0, &word); + mcs = rt2x00_get_field32(word, TXWI_W0_MCS); + real_mcs = rt2x00_get_field32(status, TX_STA_FIFO_MCS); + + /* + * Ralink has a retry mechanism using a global fallback + * 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. + */ + if (rt2x00_get_field32(status, 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 = rt2x00dev->long_retry; + } + + /* + * the frame was retried at least once + * -> hw used fallback rates + */ + if (txdesc.retry) + __set_bit(TXDONE_FALLBACK, &txdesc.flags); + + rt2x00lib_txdone(entry, &txdesc); +} +EXPORT_SYMBOL_GPL(rt2800_txdone_entry); + void rt2800_txdone(struct rt2x00_dev *rt2x00dev) { struct data_queue *queue; struct queue_entry *entry; - __le32 *txwi; - struct txdone_entry_desc txdesc; - u32 word; u32 reg; - u16 mcs, real_mcs; u8 pid; int i; @@ -673,7 +721,6 @@ void rt2800_txdone(struct rt2x00_dev *rt2x00dev) * order. We first check that the queue is not empty. */ entry = NULL; - txwi = NULL; while (!rt2x00queue_empty(queue)) { entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE); if (rt2800_txdone_entry_check(entry, reg)) @@ -683,48 +730,7 @@ void rt2800_txdone(struct rt2x00_dev *rt2x00dev) if (!entry || rt2x00queue_empty(queue)) break; - - /* - * Obtain the status about this packet. - */ - txdesc.flags = 0; - txwi = rt2800_drv_get_txwi(entry); - 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 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. - */ - 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 = rt2x00dev->long_retry; - } - - /* - * the frame was retried at least once - * -> hw used fallback rates - */ - if (txdesc.retry) - __set_bit(TXDONE_FALLBACK, &txdesc.flags); - - rt2x00lib_txdone(entry, &txdesc); + rt2800_txdone_entry(entry, reg); } } EXPORT_SYMBOL_GPL(rt2800_txdone); diff --git a/drivers/net/wireless/rt2x00/rt2800lib.h b/drivers/net/wireless/rt2x00/rt2800lib.h index 600c5eb..81cbc92 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.h +++ b/drivers/net/wireless/rt2x00/rt2800lib.h @@ -153,6 +153,7 @@ void rt2800_write_tx_data(struct queue_entry *entry, void rt2800_process_rxwi(struct queue_entry *entry, struct rxdone_entry_desc *txdesc); void rt2800_txdone(struct rt2x00_dev *rt2x00dev); +void rt2800_txdone_entry(struct queue_entry *entry, u32 status); void rt2800_write_beacon(struct queue_entry *entry, struct txentry_desc *txdesc); -- 2.7.4