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rt2800: introduce wpdma_disable function

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Introduce wpdma_disable function to simplify the code.

Signed-off-by: Jakub Kicinski <kubakici@wp.pl>
Reviewed-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jakub Kicinski 2012-04-03 03:40:47 +02:00 committed by John W. Linville
parent 5f5460706e
commit f7b395e9f8
3 changed files with 19 additions and 24 deletions
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32
drivers/net/wireless/rt2x00/rt2800lib.c
View file

@ -295,6 +295,20 @@ int rt2800_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev)
}
EXPORT_SYMBOL_GPL(rt2800_wait_wpdma_ready);
void rt2800_disable_wpdma(struct rt2x00_dev *rt2x00dev)
{
u32 reg;
rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_DMA_BUSY, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_RX_DMA_BUSY, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1);
rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
}
EXPORT_SYMBOL_GPL(rt2800_disable_wpdma);
static bool rt2800_check_firmware_crc(const u8 *data, const size_t len)
{
u16 fw_crc;
@ -436,10 +450,7 @@ int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev,
* Disable DMA, will be reenabled later when enabling
* the radio.
*/
rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0);
rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
rt2800_disable_wpdma(rt2x00dev);
/*
* Initialize firmware.
@ -2717,13 +2728,7 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
unsigned int i;
int ret;
rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_DMA_BUSY, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_RX_DMA_BUSY, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1);
rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
rt2800_disable_wpdma(rt2x00dev);
ret = rt2800_drv_init_registers(rt2x00dev);
if (ret)
@ -3997,10 +4002,7 @@ void rt2800_disable_radio(struct rt2x00_dev *rt2x00dev)
{
u32 reg;
rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0);
rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
rt2800_disable_wpdma(rt2x00dev);
/* Wait for DMA, ignore error */
rt2800_wait_wpdma_ready(rt2x00dev);

1
drivers/net/wireless/rt2x00/rt2800lib.h
View file

@ -208,5 +208,6 @@ int rt2800_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
u8 buf_size);
int rt2800_get_survey(struct ieee80211_hw *hw, int idx,
struct survey_info *survey);
void rt2800_disable_wpdma(struct rt2x00_dev *rt2x00dev);
#endif /* RT2800LIB_H */

10
drivers/net/wireless/rt2x00/rt2800pci.c
View file

@ -361,7 +361,6 @@ static void rt2800pci_clear_entry(struct queue_entry *entry)
static int rt2800pci_init_queues(struct rt2x00_dev *rt2x00dev)
{
struct queue_entry_priv_pci *entry_priv;
u32 reg;
/*
* Initialize registers.
@ -402,14 +401,7 @@ static int rt2800pci_init_queues(struct rt2x00_dev *rt2x00dev)
rt2x00dev->rx[0].limit - 1);
rt2x00pci_register_write(rt2x00dev, RX_DRX_IDX, 0);
/*
* Enable global DMA configuration
*/
rt2x00pci_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1);
rt2x00pci_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
rt2800_disable_wpdma(rt2x00dev);
rt2x00pci_register_write(rt2x00dev, DELAY_INT_CFG, 0);