Signed-off-by: Rafał Miłecki <zajec5@xxxxxxxxx>
---
V2: use static const where possible (for arrays)
---
drivers/net/wireless/b43/phy_ht.c | 96 ++++++++++++++++++++++++++++++++++++-
drivers/net/wireless/b43/phy_ht.h | 5 ++
2 files changed, 100 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/b43/phy_ht.c b/drivers/net/wireless/b43/phy_ht.c
index 22fdde6..ae9cd29 100644
--- a/drivers/net/wireless/b43/phy_ht.c
+++ b/drivers/net/wireless/b43/phy_ht.c
@@ -388,6 +388,92 @@ static void b43_phy_ht_tx_tone(struct b43_wldev *dev)
#endif
/**************************************************
+ * RSSI
+ **************************************************/
+
+#if 0
+static void b43_phy_ht_rssi_select(struct b43_wldev *dev, u8 core_sel,
+ u8 rssi_type)
+{
+ static const u16 ctl_regs[3][2] = {
+ { B43_PHY_HT_AFE_C1, B43_PHY_HT_AFE_C1_OVER, },
+ { B43_PHY_HT_AFE_C2, B43_PHY_HT_AFE_C2_OVER, },
+ { B43_PHY_HT_AFE_C3, B43_PHY_HT_AFE_C3_OVER, },
+ };
+ static const u16 radio_r[] = { R2059_SYN, R2059_TXRX0, R2059_RXRX1, };
+ int core;
+
+ if (core_sel == 0) {
+ b43err(dev->wl, "RSSI selection for core off not implemented yet\n");
+ } else {
+ for (core = 0; core < 3; core++) {
+ /* Check if caller requested a one specific core */
+ if ((core_sel == 1 && core != 0) ||
+ (core_sel == 2 && core != 1) ||
+ (core_sel == 3 && core != 2))
+ continue;
+
+ switch (rssi_type) {
+ case 4:
+ b43_phy_set(dev, ctl_regs[core][0], 0x3 << 8);
+ b43_phy_set(dev, ctl_regs[core][0], 0x3 << 10);
+ b43_phy_set(dev, ctl_regs[core][1], 0x1 << 9);
+ b43_phy_set(dev, ctl_regs[core][1], 0x1 << 10);
+
+ b43_radio_set(dev, R2059_RXRX1 | 0xbf, 0x1);
+ b43_radio_write(dev, radio_r[core] | 0x159,
+ 0x11);
+ break;
+ default:
+ b43err(dev->wl, "RSSI selection for type %d not implemented yet\n",
+ rssi_type);
+ }
+ }
+ }
+}
+
+static void b43_phy_ht_poll_rssi(struct b43_wldev *dev, u8 type, s32 *buf,
+ u8 nsamp)
+{
+ u16 phy_regs_values[12];
+ static const u16 phy_regs_to_save[] = {
+ B43_PHY_HT_AFE_C1, B43_PHY_HT_AFE_C1_OVER,
+ 0x848, 0x841,
+ B43_PHY_HT_AFE_C2, B43_PHY_HT_AFE_C2_OVER,
+ 0x868, 0x861,
+ B43_PHY_HT_AFE_C3, B43_PHY_HT_AFE_C3_OVER,
+ 0x888, 0x881,
+ };
+ u16 tmp[3];
+ int i;
+
+ for (i = 0; i < 12; i++)
+ phy_regs_values[i] = b43_phy_read(dev, phy_regs_to_save[i]);
+
+ b43_phy_ht_rssi_select(dev, 5, type);
+
+ for (i = 0; i < 6; i++)
+ buf[i] = 0;
+
+ for (i = 0; i < nsamp; i++) {
+ tmp[0] = b43_phy_read(dev, B43_PHY_HT_RSSI_C1);
+ tmp[1] = b43_phy_read(dev, B43_PHY_HT_RSSI_C2);
+ tmp[2] = b43_phy_read(dev, B43_PHY_HT_RSSI_C3);
+
+ buf[0] += ((s8)((tmp[0] & 0x3F) << 2)) >> 2;
+ buf[1] += ((s8)(((tmp[0] >> 8) & 0x3F) << 2)) >> 2;
+ buf[2] += ((s8)((tmp[1] & 0x3F) << 2)) >> 2;
+ buf[3] += ((s8)(((tmp[1] >> 8) & 0x3F) << 2)) >> 2;
+ buf[4] += ((s8)((tmp[2] & 0x3F) << 2)) >> 2;
+ buf[5] += ((s8)(((tmp[2] >> 8) & 0x3F) << 2)) >> 2;
+ }
+
+ for (i = 0; i < 12; i++)
+ b43_phy_write(dev, phy_regs_to_save[i], phy_regs_values[i]);
+}
+#endif
+
+/**************************************************
* Tx/Rx
**************************************************/
@@ -454,12 +540,20 @@ static void b43_phy_ht_tx_power_ctl(struct b43_wldev *dev, bool enable)
static void b43_phy_ht_tx_power_ctl_idle_tssi(struct b43_wldev *dev)
{
+ struct b43_phy_ht *phy_ht = dev->phy.ht;
+ s32 rssi_buf[6];
+
/* TODO */
b43_phy_ht_tx_tone(dev);
udelay(20);
- /* TODO: poll RSSI */
+ b43_phy_ht_poll_rssi(dev, 4, rssi_buf, 1);
b43_phy_ht_stop_playback(dev);
+ b43_phy_ht_reset_cca(dev);
+
+ phy_ht->idle_tssi[0] = rssi_buf[0] & 0xff;
+ phy_ht->idle_tssi[1] = rssi_buf[2] & 0xff;
+ phy_ht->idle_tssi[2] = rssi_buf[4] & 0xff;
/* TODO */
}
diff --git a/drivers/net/wireless/b43/phy_ht.h b/drivers/net/wireless/b43/phy_ht.h
index c517958..165c501 100644
--- a/drivers/net/wireless/b43/phy_ht.h
+++ b/drivers/net/wireless/b43/phy_ht.h
@@ -36,6 +36,9 @@
#define B43_PHY_HT_TXPCTL_CMD_C1_PCTLEN 0x8000 /* TX power control enable */
#define B43_PHY_HT_TXPCTL_CMD_C2 0x222
#define B43_PHY_HT_TXPCTL_CMD_C2_INIT 0x007F
+#define B43_PHY_HT_RSSI_C1 0x219
+#define B43_PHY_HT_RSSI_C2 0x21A
+#define B43_PHY_HT_RSSI_C3 0x21B
#define B43_PHY_HT_C1_CLIP1THRES B43_PHY_OFDM(0x00E)
#define B43_PHY_HT_C2_CLIP1THRES B43_PHY_OFDM(0x04E)
@@ -91,6 +94,8 @@ struct b43_phy_ht {
u8 tx_pwr_idx[3];
s32 bb_mult_save[3];
+
+ u8 idle_tssi[3];
};
--
1.7.10.4
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