diff options
author | Gabor Juhos <juhosg@openwrt.org> | 2013-10-17 07:42:23 (GMT) |
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committer | John W. Linville <linville@tuxdriver.com> | 2013-10-18 18:06:59 (GMT) |
commit | d5580ade2fec2a0d50ceee7a9ce44a35a4de133b (patch) | |
tree | 9b4e3ef9ad7ceac901174c27deb0b359b13d6238 /drivers/net/wireless/rt2x00/rt2800mmio.c | |
parent | 51e62469eac296d39d57fb75f182e4ef8066f82f (diff) | |
download | linux-fsl-qoriq-d5580ade2fec2a0d50ceee7a9ce44a35a4de133b.tar.xz |
rt2x00: rt2800pci: move queue functions to the rt2800mmio module
Move the functions into a separate module, in order
to make those usable from other modules. Also move
the queue register offset macros from rt2800pci.h
into rt2800mmio.h.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800mmio.c')
-rw-r--r-- | drivers/net/wireless/rt2x00/rt2800mmio.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.c b/drivers/net/wireless/rt2x00/rt2800mmio.c index bfae4f0..c42bea5 100644 --- a/drivers/net/wireless/rt2x00/rt2800mmio.c +++ b/drivers/net/wireless/rt2x00/rt2800mmio.c @@ -552,6 +552,143 @@ void rt2800mmio_toggle_irq(struct rt2x00_dev *rt2x00dev, } EXPORT_SYMBOL_GPL(rt2800mmio_toggle_irq); +/* + * Queue handlers. + */ +void rt2800mmio_start_queue(struct data_queue *queue) +{ + struct rt2x00_dev *rt2x00dev = queue->rt2x00dev; + u32 reg; + + switch (queue->qid) { + case QID_RX: + rt2x00mmio_register_read(rt2x00dev, MAC_SYS_CTRL, ®); + rt2x00_set_field32(®, MAC_SYS_CTRL_ENABLE_RX, 1); + rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, reg); + break; + case QID_BEACON: + rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, ®); + rt2x00_set_field32(®, BCN_TIME_CFG_TSF_TICKING, 1); + rt2x00_set_field32(®, BCN_TIME_CFG_TBTT_ENABLE, 1); + rt2x00_set_field32(®, BCN_TIME_CFG_BEACON_GEN, 1); + rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg); + + rt2x00mmio_register_read(rt2x00dev, INT_TIMER_EN, ®); + rt2x00_set_field32(®, INT_TIMER_EN_PRE_TBTT_TIMER, 1); + rt2x00mmio_register_write(rt2x00dev, INT_TIMER_EN, reg); + break; + default: + break; + } +} +EXPORT_SYMBOL_GPL(rt2800mmio_start_queue); + +void rt2800mmio_kick_queue(struct data_queue *queue) +{ + struct rt2x00_dev *rt2x00dev = queue->rt2x00dev; + struct queue_entry *entry; + + switch (queue->qid) { + case QID_AC_VO: + case QID_AC_VI: + case QID_AC_BE: + case QID_AC_BK: + entry = rt2x00queue_get_entry(queue, Q_INDEX); + rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX(queue->qid), + entry->entry_idx); + break; + case QID_MGMT: + entry = rt2x00queue_get_entry(queue, Q_INDEX); + rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX(5), + entry->entry_idx); + break; + default: + break; + } +} +EXPORT_SYMBOL_GPL(rt2800mmio_kick_queue); + +void rt2800mmio_stop_queue(struct data_queue *queue) +{ + struct rt2x00_dev *rt2x00dev = queue->rt2x00dev; + u32 reg; + + switch (queue->qid) { + case QID_RX: + rt2x00mmio_register_read(rt2x00dev, MAC_SYS_CTRL, ®); + rt2x00_set_field32(®, MAC_SYS_CTRL_ENABLE_RX, 0); + rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, reg); + break; + case QID_BEACON: + rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, ®); + rt2x00_set_field32(®, BCN_TIME_CFG_TSF_TICKING, 0); + rt2x00_set_field32(®, BCN_TIME_CFG_TBTT_ENABLE, 0); + rt2x00_set_field32(®, BCN_TIME_CFG_BEACON_GEN, 0); + rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg); + + rt2x00mmio_register_read(rt2x00dev, INT_TIMER_EN, ®); + rt2x00_set_field32(®, INT_TIMER_EN_PRE_TBTT_TIMER, 0); + rt2x00mmio_register_write(rt2x00dev, INT_TIMER_EN, reg); + + /* + * Wait for current invocation to finish. The tasklet + * won't be scheduled anymore afterwards since we disabled + * the TBTT and PRE TBTT timer. + */ + tasklet_kill(&rt2x00dev->tbtt_tasklet); + tasklet_kill(&rt2x00dev->pretbtt_tasklet); + + break; + default: + break; + } +} +EXPORT_SYMBOL_GPL(rt2800mmio_stop_queue); + +void rt2800mmio_queue_init(struct data_queue *queue) +{ + struct rt2x00_dev *rt2x00dev = queue->rt2x00dev; + unsigned short txwi_size, rxwi_size; + + rt2800_get_txwi_rxwi_size(rt2x00dev, &txwi_size, &rxwi_size); + + switch (queue->qid) { + case QID_RX: + queue->limit = 128; + queue->data_size = AGGREGATION_SIZE; + queue->desc_size = RXD_DESC_SIZE; + queue->winfo_size = rxwi_size; + queue->priv_size = sizeof(struct queue_entry_priv_mmio); + break; + + case QID_AC_VO: + case QID_AC_VI: + case QID_AC_BE: + case QID_AC_BK: + queue->limit = 64; + queue->data_size = AGGREGATION_SIZE; + queue->desc_size = TXD_DESC_SIZE; + queue->winfo_size = txwi_size; + queue->priv_size = sizeof(struct queue_entry_priv_mmio); + break; + + case QID_BEACON: + queue->limit = 8; + queue->data_size = 0; /* No DMA required for beacons */ + queue->desc_size = TXD_DESC_SIZE; + queue->winfo_size = txwi_size; + queue->priv_size = sizeof(struct queue_entry_priv_mmio); + break; + + case QID_ATIM: + /* fallthrough */ + default: + BUG(); + break; + } +} +EXPORT_SYMBOL_GPL(rt2800mmio_queue_init); + MODULE_AUTHOR(DRV_PROJECT); MODULE_VERSION(DRV_VERSION); MODULE_DESCRIPTION("rt2800 MMIO library"); |