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rt2x00: Start bugging when rt2x00lib doesn't filter SW diversity

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rt2x00lib should filter SW diversity out before sending any configuration
changes to the driver. When rt2x00lib fails to do this, it is important
that such events are reported because it _must_ be fixed.
So upgrading the error level to a BUG_ON() which will make sure
this bug gets noticed whenever it happens.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ivo van Doorn 2008-03-09 22:45:21 +01:00 committed by John W. Linville
parent a7f3a06cbb
commit a4fe07d913
5 changed files with 49 additions and 81 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/net/wireless/rt2x00/rt2400pci.c
View File

@ -417,6 +417,13 @@ static void rt2400pci_config_antenna(struct rt2x00_dev *rt2x00dev,
u8 r1;
u8 r4;
/*
* We should never come here because rt2x00lib is supposed
* to catch this and send us the correct antenna explicitely.
*/
BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
ant->tx == ANTENNA_SW_DIVERSITY);
rt2400pci_bbp_read(rt2x00dev, 4, &r4);
rt2400pci_bbp_read(rt2x00dev, 1, &r1);
@ -430,14 +437,8 @@ static void rt2400pci_config_antenna(struct rt2x00_dev *rt2x00dev,
case ANTENNA_A:
rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 0);
break;
case ANTENNA_SW_DIVERSITY:
/*
* NOTE: We should never come here because rt2x00lib is
* supposed to catch this and send us the correct antenna
* explicitely. However we are nog going to bug about this.
* Instead, just default to antenna B.
*/
case ANTENNA_B:
default:
rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 2);
break;
}
@ -452,14 +453,8 @@ static void rt2400pci_config_antenna(struct rt2x00_dev *rt2x00dev,
case ANTENNA_A:
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 0);
break;
case ANTENNA_SW_DIVERSITY:
/*
* NOTE: We should never come here because rt2x00lib is
* supposed to catch this and send us the correct antenna
* explicitely. However we are nog going to bug about this.
* Instead, just default to antenna B.
*/
case ANTENNA_B:
default:
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
break;
}

25
drivers/net/wireless/rt2x00/rt2500pci.c
View File

@ -444,6 +444,13 @@ static void rt2500pci_config_antenna(struct rt2x00_dev *rt2x00dev,
u8 r14;
u8 r2;
/*
* We should never come here because rt2x00lib is supposed
* to catch this and send us the correct antenna explicitely.
*/
BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
ant->tx == ANTENNA_SW_DIVERSITY);
rt2x00pci_register_read(rt2x00dev, BBPCSR1, &reg);
rt2500pci_bbp_read(rt2x00dev, 14, &r14);
rt2500pci_bbp_read(rt2x00dev, 2, &r2);
@ -457,15 +464,8 @@ static void rt2500pci_config_antenna(struct rt2x00_dev *rt2x00dev,
rt2x00_set_field32(&reg, BBPCSR1_CCK, 0);
rt2x00_set_field32(&reg, BBPCSR1_OFDM, 0);
break;
case ANTENNA_HW_DIVERSITY:
case ANTENNA_SW_DIVERSITY:
/*
* NOTE: We should never come here because rt2x00lib is
* supposed to catch this and send us the correct antenna
* explicitely. However we are nog going to bug about this.
* Instead, just default to antenna B.
*/
case ANTENNA_B:
default:
rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
rt2x00_set_field32(&reg, BBPCSR1_CCK, 2);
rt2x00_set_field32(&reg, BBPCSR1_OFDM, 2);
@ -479,15 +479,8 @@ static void rt2500pci_config_antenna(struct rt2x00_dev *rt2x00dev,
case ANTENNA_A:
rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
break;
case ANTENNA_HW_DIVERSITY:
case ANTENNA_SW_DIVERSITY:
/*
* NOTE: We should never come here because rt2x00lib is
* supposed to catch this and send us the correct antenna
* explicitely. However we are nog going to bug about this.
* Instead, just default to antenna B.
*/
case ANTENNA_B:
default:
rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
break;
}

23
drivers/net/wireless/rt2x00/rt2500usb.c
View File

@ -437,6 +437,13 @@ static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev,
u16 csr5;
u16 csr6;
/*
* We should never come here because rt2x00lib is supposed
* to catch this and send us the correct antenna explicitely.
*/
BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
ant->tx == ANTENNA_SW_DIVERSITY);
rt2500usb_bbp_read(rt2x00dev, 2, &r2);
rt2500usb_bbp_read(rt2x00dev, 14, &r14);
rt2500usb_register_read(rt2x00dev, PHY_CSR5, &csr5);
@ -456,14 +463,8 @@ static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev,
rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 0);
rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 0);
break;
case ANTENNA_SW_DIVERSITY:
/*
* NOTE: We should never come here because rt2x00lib is
* supposed to catch this and send us the correct antenna
* explicitely. However we are nog going to bug about this.
* Instead, just default to antenna B.
*/
case ANTENNA_B:
default:
rt2x00_set_field8(&r2, BBP_R2_TX_ANTENNA, 2);
rt2x00_set_field16(&csr5, PHY_CSR5_CCK, 2);
rt2x00_set_field16(&csr6, PHY_CSR6_OFDM, 2);
@ -480,14 +481,8 @@ static void rt2500usb_config_antenna(struct rt2x00_dev *rt2x00dev,
case ANTENNA_A:
rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 0);
break;
case ANTENNA_SW_DIVERSITY:
/*
* NOTE: We should never come here because rt2x00lib is
* supposed to catch this and send us the correct antenna
* explicitely. However we are nog going to bug about this.
* Instead, just default to antenna B.
*/
case ANTENNA_B:
default:
rt2x00_set_field8(&r14, BBP_R14_RX_ANTENNA, 2);
break;
}

36
drivers/net/wireless/rt2x00/rt61pci.c
View File

@ -481,14 +481,8 @@ static void rt61pci_config_antenna_5x(struct rt2x00_dev *rt2x00dev,
else
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
break;
case ANTENNA_SW_DIVERSITY:
/*
* NOTE: We should never come here because rt2x00lib is
* supposed to catch this and send us the correct antenna
* explicitely. However we are nog going to bug about this.
* Instead, just default to antenna B.
*/
case ANTENNA_B:
default:
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ)
@ -530,14 +524,8 @@ static void rt61pci_config_antenna_2x(struct rt2x00_dev *rt2x00dev,
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
break;
case ANTENNA_SW_DIVERSITY:
/*
* NOTE: We should never come here because rt2x00lib is
* supposed to catch this and send us the correct antenna
* explicitely. However we are nog going to bug about this.
* Instead, just default to antenna B.
*/
case ANTENNA_B:
default:
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
break;
@ -575,10 +563,6 @@ static void rt61pci_config_antenna_2529(struct rt2x00_dev *rt2x00dev,
rt61pci_bbp_read(rt2x00dev, 4, &r4);
rt61pci_bbp_read(rt2x00dev, 77, &r77);
/* FIXME: Antenna selection for the rf 2529 is very confusing in the
* legacy driver. The code below should be ok for non-diversity setups.
*/
/*
* Configure the RX antenna.
*/
@ -588,15 +572,14 @@ static void rt61pci_config_antenna_2529(struct rt2x00_dev *rt2x00dev,
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
rt61pci_config_antenna_2529_rx(rt2x00dev, 0, 0);
break;
case ANTENNA_SW_DIVERSITY:
case ANTENNA_HW_DIVERSITY:
/*
* NOTE: We should never come here because rt2x00lib is
* supposed to catch this and send us the correct antenna
* explicitely. However we are nog going to bug about this.
* Instead, just default to antenna B.
* FIXME: Antenna selection for the rf 2529 is very confusing
* in the legacy driver. Just default to antenna B until the
* legacy code can be properly translated into rt2x00 code.
*/
case ANTENNA_B:
default:
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
rt61pci_config_antenna_2529_rx(rt2x00dev, 1, 1);
@ -647,6 +630,13 @@ static void rt61pci_config_antenna(struct rt2x00_dev *rt2x00dev,
unsigned int i;
u32 reg;
/*
* We should never come here because rt2x00lib is supposed
* to catch this and send us the correct antenna explicitely.
*/
BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
ant->tx == ANTENNA_SW_DIVERSITY);
if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
sel = antenna_sel_a;
lna = test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);

23
drivers/net/wireless/rt2x00/rt73usb.c
View File

@ -497,14 +497,8 @@ static void rt73usb_config_antenna_5x(struct rt2x00_dev *rt2x00dev,
else
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
break;
case ANTENNA_SW_DIVERSITY:
/*
* NOTE: We should never come here because rt2x00lib is
* supposed to catch this and send us the correct antenna
* explicitely. However we are nog going to bug about this.
* Instead, just default to antenna B.
*/
case ANTENNA_B:
default:
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, 0);
if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ)
@ -545,14 +539,8 @@ static void rt73usb_config_antenna_2x(struct rt2x00_dev *rt2x00dev,
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 3);
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
break;
case ANTENNA_SW_DIVERSITY:
/*
* NOTE: We should never come here because rt2x00lib is
* supposed to catch this and send us the correct antenna
* explicitely. However we are nog going to bug about this.
* Instead, just default to antenna B.
*/
case ANTENNA_B:
default:
rt2x00_set_field8(&r77, BBP_R77_RX_ANTENNA, 0);
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 1);
break;
@ -602,6 +590,13 @@ static void rt73usb_config_antenna(struct rt2x00_dev *rt2x00dev,
unsigned int i;
u32 reg;
/*
* We should never come here because rt2x00lib is supposed
* to catch this and send us the correct antenna explicitely.
*/
BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
ant->tx == ANTENNA_SW_DIVERSITY);
if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
sel = antenna_sel_a;
lna = test_bit(CONFIG_EXTERNAL_LNA_A, &rt2x00dev->flags);