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rt2x00: Unify rt2800 WPDMA ready waiting functions. 

The rt2800pci_wait_wpdma_ready and rt2800usb_wait_wpdma_ready functions are
exactly the same, so unify them into rt200lib.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Gertjan van Wingerde 2009-12-30 11:36:32 +01:00 committed by John W. Linville
parent 6c0fe26581
commit 67a4c1e24d
4 changed files with 25 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/wireless/rt2x00/rt2800lib.c
View File

@ -245,6 +245,25 @@ void rt2800_mcu_request(struct rt2x00_dev *rt2x00dev,
}
EXPORT_SYMBOL_GPL(rt2800_mcu_request);
int rt2800_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev)
{
unsigned int i;
u32 reg;
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
if (!rt2x00_get_field32(reg, WPDMA_GLO_CFG_TX_DMA_BUSY) &&
!rt2x00_get_field32(reg, WPDMA_GLO_CFG_RX_DMA_BUSY))
return 0;
msleep(1);
}
ERROR(rt2x00dev, "WPDMA TX/RX busy, aborting.\n");
return -EACCES;
}
EXPORT_SYMBOL_GPL(rt2800_wait_wpdma_ready);
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
const struct rt2x00debug rt2800_rt2x00debug = {
.owner = THIS_MODULE,

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

@ -139,6 +139,7 @@ void rt2800_link_tuner(struct rt2x00_dev *rt2x00dev, struct link_qual *qual,
int rt2800_init_registers(struct rt2x00_dev *rt2x00dev);
int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev);
int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev);
int rt2800_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev);
int rt2800_efuse_detect(struct rt2x00_dev *rt2x00dev);
void rt2800_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev);

24
drivers/net/wireless/rt2x00/rt2800pci.c
View File

@ -453,24 +453,6 @@ static void rt2800pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
rt2800_register_write(rt2x00dev, INT_MASK_CSR, reg);
}
static int rt2800pci_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev)
{
unsigned int i;
u32 reg;
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
if (!rt2x00_get_field32(reg, WPDMA_GLO_CFG_TX_DMA_BUSY) &&
!rt2x00_get_field32(reg, WPDMA_GLO_CFG_RX_DMA_BUSY))
return 0;
msleep(1);
}
ERROR(rt2x00dev, "WPDMA TX/RX busy, aborting.\n");
return -EACCES;
}
static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
{
u32 reg;
@ -479,10 +461,10 @@ static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
/*
* Initialize all registers.
*/
if (unlikely(rt2800pci_wait_wpdma_ready(rt2x00dev) ||
if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev) ||
rt2800pci_init_queues(rt2x00dev) ||
rt2800_init_registers(rt2x00dev) ||
rt2800pci_wait_wpdma_ready(rt2x00dev) ||
rt2800_wait_wpdma_ready(rt2x00dev) ||
rt2800_init_bbp(rt2x00dev) ||
rt2800_init_rfcsr(rt2x00dev)))
return -EIO;
@ -562,7 +544,7 @@ static void rt2800pci_disable_radio(struct rt2x00_dev *rt2x00dev)
rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e00);
/* Wait for DMA, ignore error */
rt2800pci_wait_wpdma_ready(rt2x00dev);
rt2800_wait_wpdma_ready(rt2x00dev);
}
static int rt2800pci_set_state(struct rt2x00_dev *rt2x00dev,

22
drivers/net/wireless/rt2x00/rt2800usb.c
View File

@ -248,24 +248,6 @@ static void rt2800usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
}
static int rt2800usb_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev)
{
unsigned int i;
u32 reg;
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
if (!rt2x00_get_field32(reg, WPDMA_GLO_CFG_TX_DMA_BUSY) &&
!rt2x00_get_field32(reg, WPDMA_GLO_CFG_RX_DMA_BUSY))
return 0;
msleep(1);
}
ERROR(rt2x00dev, "WPDMA TX/RX busy, aborting.\n");
return -EACCES;
}
static int rt2800usb_enable_radio(struct rt2x00_dev *rt2x00dev)
{
u32 reg;
@ -274,7 +256,7 @@ static int rt2800usb_enable_radio(struct rt2x00_dev *rt2x00dev)
/*
* Initialize all registers.
*/
if (unlikely(rt2800usb_wait_wpdma_ready(rt2x00dev) ||
if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev) ||
rt2800_init_registers(rt2x00dev) ||
rt2800_init_bbp(rt2x00dev) ||
rt2800_init_rfcsr(rt2x00dev)))
@ -344,7 +326,7 @@ static void rt2800usb_disable_radio(struct rt2x00_dev *rt2x00dev)
rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0);
/* Wait for DMA, ignore error */
rt2800usb_wait_wpdma_ready(rt2x00dev);
rt2800_wait_wpdma_ready(rt2x00dev);
rt2x00usb_disable_radio(rt2x00dev);
}