From: Stanislaw Gruszka <stf_xl@xxxxx>
Add procedure for both bands filter calibration and use it on individual
chipset init rfcsr subroutines.
Remove "Set back to initial state" code for 3290 since vendor driver
DPO_RT3290_LinuxSTA_V2600_20120508 does not include it.
Signed-off-by: Stanislaw Gruszka <stf_xl@xxxxx>
---
drivers/net/wireless/rt2x00/rt2800lib.c | 103 +++++++++++++++++--------------
1 files changed, 57 insertions(+), 46 deletions(-)
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 6907cd3..ad83bcd 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4332,8 +4332,8 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
return 0;
}
-static u8 rt2800_init_rx_filter(struct rt2x00_dev *rt2x00dev,
- bool bw40, u8 rfcsr24, u8 filter_target)
+static u8 rt2800_init_rx_filter(struct rt2x00_dev *rt2x00dev, bool bw40,
+ u8 filter_target)
{
unsigned int i;
u8 bbp;
@@ -4341,6 +4341,7 @@ static u8 rt2800_init_rx_filter(struct rt2x00_dev *rt2x00dev,
u8 passband;
u8 stopband;
u8 overtuned = 0;
+ u8 rfcsr24 = (bw40) ? 0x27 : 0x07;
rt2800_rfcsr_write(rt2x00dev, 24, rfcsr24);
@@ -4409,6 +4410,52 @@ static void rt2800_rf_init_calibration(struct rt2x00_dev *rt2x00dev,
rt2800_rfcsr_write(rt2x00dev, rf_reg, rfcsr);
}
+static void rt2800_rx_filter_calibration(struct rt2x00_dev *rt2x00dev)
+{
+ struct rt2800_drv_data *drv_data = rt2x00dev->drv_data;
+ u8 filter_tgt_bw20;
+ u8 filter_tgt_bw40;
+ u8 rfcsr, bbp;
+
+ /*
+ * TODO: sync filter_tgt values with vendor driver
+ */
+ if (rt2x00_rt(rt2x00dev, RT3070)) {
+ filter_tgt_bw20 = 0x16;
+ filter_tgt_bw40 = 0x19;
+ } else {
+ filter_tgt_bw20 = 0x13;
+ filter_tgt_bw40 = 0x15;
+ }
+
+ drv_data->calibration_bw20 =
+ rt2800_init_rx_filter(rt2x00dev, false, filter_tgt_bw20);
+ drv_data->calibration_bw40 =
+ rt2800_init_rx_filter(rt2x00dev, true, filter_tgt_bw40);
+
+ /*
+ * Save BBP 25 & 26 values for later use in channel switching (for 3052)
+ */
+ rt2800_bbp_read(rt2x00dev, 25, &drv_data->bbp25);
+ rt2800_bbp_read(rt2x00dev, 26, &drv_data->bbp26);
+
+ /*
+ * Set back to initial state
+ */
+ rt2800_bbp_write(rt2x00dev, 24, 0);
+
+ rt2800_rfcsr_read(rt2x00dev, 22, &rfcsr);
+ rt2x00_set_field8(&rfcsr, RFCSR22_BASEBAND_LOOPBACK, 0);
+ rt2800_rfcsr_write(rt2x00dev, 22, rfcsr);
+
+ /*
+ * Set BBP back to BW20
+ */
+ rt2800_bbp_read(rt2x00dev, 4, &bbp);
+ rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 0);
+ rt2800_bbp_write(rt2x00dev, 4, bbp);
+}
+
static void rt2800_normal_mode_setup_5xxx(struct rt2x00_dev *rt2x00dev)
{
u8 reg;
@@ -4534,6 +4581,8 @@ static void rt2800_init_rfcsr_30xx(struct rt2x00_dev *rt2x00dev)
rt2x00_set_field32(®, GPIO_SWITCH_5, 0);
rt2800_register_write(rt2x00dev, GPIO_SWITCH, reg);
}
+
+ rt2800_rx_filter_calibration(rt2x00dev);
}
static void rt2800_init_rfcsr_3290(struct rt2x00_dev *rt2x00dev)
@@ -4661,6 +4710,8 @@ static void rt2800_init_rfcsr_3352(struct rt2x00_dev *rt2x00dev)
rt2800_rfcsr_write(rt2x00dev, 61, 0x00);
rt2800_rfcsr_write(rt2x00dev, 62, 0x00);
rt2800_rfcsr_write(rt2x00dev, 63, 0x00);
+
+ rt2800_rx_filter_calibration(rt2x00dev);
}
static void rt2800_init_rfcsr_3390(struct rt2x00_dev *rt2x00dev)
@@ -4705,6 +4756,8 @@ static void rt2800_init_rfcsr_3390(struct rt2x00_dev *rt2x00dev)
rt2800_register_read(rt2x00dev, GPIO_SWITCH, ®);
rt2x00_set_field32(®, GPIO_SWITCH_5, 0);
rt2800_register_write(rt2x00dev, GPIO_SWITCH, reg);
+
+ rt2800_rx_filter_calibration(rt2x00dev);
}
static void rt2800_init_rfcsr_3572(struct rt2x00_dev *rt2x00dev)
@@ -4759,6 +4812,8 @@ static void rt2800_init_rfcsr_3572(struct rt2x00_dev *rt2x00dev)
rt2x00_set_field32(®, LDO_CFG0_LDO_CORE_VLEVEL, 0);
rt2x00_set_field32(®, LDO_CFG0_BGSEL, 1);
rt2800_register_write(rt2x00dev, LDO_CFG0, reg);
+
+ rt2800_rx_filter_calibration(rt2x00dev);
}
static void rt2800_init_rfcsr_5390(struct rt2x00_dev *rt2x00dev)
@@ -5011,50 +5066,6 @@ static int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev)
return 0;
}
- /*
- * Set RX Filter calibration for 20MHz and 40MHz
- */
- if (rt2x00_rt(rt2x00dev, RT3070)) {
- drv_data->calibration_bw20 =
- rt2800_init_rx_filter(rt2x00dev, false, 0x07, 0x16);
- drv_data->calibration_bw40 =
- rt2800_init_rx_filter(rt2x00dev, true, 0x27, 0x19);
- } else if (rt2x00_rt(rt2x00dev, RT3071) ||
- rt2x00_rt(rt2x00dev, RT3090) ||
- rt2x00_rt(rt2x00dev, RT3352) ||
- rt2x00_rt(rt2x00dev, RT3390) ||
- rt2x00_rt(rt2x00dev, RT3572)) {
- drv_data->calibration_bw20 =
- rt2800_init_rx_filter(rt2x00dev, false, 0x07, 0x13);
- drv_data->calibration_bw40 =
- rt2800_init_rx_filter(rt2x00dev, true, 0x27, 0x15);
- }
-
- /*
- * Save BBP 25 & 26 values for later use in channel switching
- */
- rt2800_bbp_read(rt2x00dev, 25, &drv_data->bbp25);
- rt2800_bbp_read(rt2x00dev, 26, &drv_data->bbp26);
-
- if (!rt2x00_rt(rt2x00dev, RT5390) &&
- !rt2x00_rt(rt2x00dev, RT5392)) {
- /*
- * Set back to initial state
- */
- rt2800_bbp_write(rt2x00dev, 24, 0);
-
- rt2800_rfcsr_read(rt2x00dev, 22, &rfcsr);
- rt2x00_set_field8(&rfcsr, RFCSR22_BASEBAND_LOOPBACK, 0);
- rt2800_rfcsr_write(rt2x00dev, 22, rfcsr);
-
- /*
- * Set BBP back to BW20
- */
- rt2800_bbp_read(rt2x00dev, 4, &bbp);
- rt2x00_set_field8(&bbp, BBP4_BANDWIDTH, 0);
- rt2800_bbp_write(rt2x00dev, 4, bbp);
- }
-
if (rt2x00_rt_rev_lt(rt2x00dev, RT3070, REV_RT3070F) ||
rt2x00_rt_rev_lt(rt2x00dev, RT3071, REV_RT3071E) ||
rt2x00_rt_rev_lt(rt2x00dev, RT3090, REV_RT3090E) ||
--
1.7.4.4
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
