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path: root/drivers/net/wireless/rt2x00/rt2500usb.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2500usb.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2500usb.c44
1 files changed, 26 insertions, 18 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index cca1504550dc..a46e4a6eba96 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -847,25 +847,32 @@ static int rt2500usb_init_registers(struct rt2x00_dev *rt2x00dev)
return 0;
}
-static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
+static int rt2500usb_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
{
unsigned int i;
- u16 eeprom;
u8 value;
- u8 reg_id;
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
rt2500usb_bbp_read(rt2x00dev, 0, &value);
if ((value != 0xff) && (value != 0x00))
- goto continue_csr_init;
- NOTICE(rt2x00dev, "Waiting for BBP register.\n");
+ return 0;
udelay(REGISTER_BUSY_DELAY);
}
ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
return -EACCES;
+}
+
+static int rt2500usb_init_bbp(struct rt2x00_dev *rt2x00dev)
+{
+ unsigned int i;
+ u16 eeprom;
+ u8 value;
+ u8 reg_id;
+
+ if (unlikely(rt2500usb_wait_bbp_ready(rt2x00dev)))
+ return -EACCES;
-continue_csr_init:
rt2500usb_bbp_write(rt2x00dev, 3, 0x02);
rt2500usb_bbp_write(rt2x00dev, 4, 0x19);
rt2500usb_bbp_write(rt2x00dev, 14, 0x1c);
@@ -921,7 +928,8 @@ static void rt2500usb_toggle_rx(struct rt2x00_dev *rt2x00dev,
rt2500usb_register_read(rt2x00dev, TXRX_CSR2, &reg);
rt2x00_set_field16(&reg, TXRX_CSR2_DISABLE_RX,
- state == STATE_RADIO_RX_OFF);
+ (state == STATE_RADIO_RX_OFF) ||
+ (state == STATE_RADIO_RX_OFF_LINK));
rt2500usb_register_write(rt2x00dev, TXRX_CSR2, reg);
}
@@ -930,11 +938,9 @@ static int rt2500usb_enable_radio(struct rt2x00_dev *rt2x00dev)
/*
* Initialize all registers.
*/
- if (rt2500usb_init_registers(rt2x00dev) ||
- rt2500usb_init_bbp(rt2x00dev)) {
- ERROR(rt2x00dev, "Register initialization failed.\n");
+ if (unlikely(rt2500usb_init_registers(rt2x00dev) ||
+ rt2500usb_init_bbp(rt2x00dev)))
return -EIO;
- }
return 0;
}
@@ -987,10 +993,6 @@ static int rt2500usb_set_state(struct rt2x00_dev *rt2x00dev,
msleep(30);
}
- NOTICE(rt2x00dev, "Device failed to enter state %d, "
- "current device state: bbp %d and rf %d.\n",
- state, bbp_state, rf_state);
-
return -EBUSY;
}
@@ -1008,11 +1010,13 @@ static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
break;
case STATE_RADIO_RX_ON:
case STATE_RADIO_RX_ON_LINK:
- rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
- break;
case STATE_RADIO_RX_OFF:
case STATE_RADIO_RX_OFF_LINK:
- rt2500usb_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
+ rt2500usb_toggle_rx(rt2x00dev, state);
+ break;
+ case STATE_RADIO_IRQ_ON:
+ case STATE_RADIO_IRQ_OFF:
+ /* No support, but no error either */
break;
case STATE_DEEP_SLEEP:
case STATE_SLEEP:
@@ -1025,6 +1029,10 @@ static int rt2500usb_set_device_state(struct rt2x00_dev *rt2x00dev,
break;
}
+ if (unlikely(retval))
+ ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
+ state, retval);
+
return retval;
}
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