b43: LCN-PHY: load TX gain table on init

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 194 insertions, 3 deletions

diff --git a/drivers/net/wireless/b43/tables_phy_lcn.c b/drivers/net/wireless/b43/tables_phy_lcn.c
index 1682ba0a410..9d484e2f79b 100644
--- a/drivers/net/wireless/b43/tables_phy_lcn.c
+++ b/drivers/net/wireless/b43/tables_phy_lcn.c
@@ -27,6 +27,18 @@
 #include "phy_common.h"
 #include "phy_lcn.h"
 
+struct b43_lcntab_tx_gain_tbl_entry {
+        u8 gm;
+        u8 pga;
+        u8 pad;
+        u8 dac;
+        u8 bb_mult;
+};
+
+/**************************************************
+ * Static tables.
+ **************************************************/
+
 static const u16 b43_lcntab_0x02[] = {
         0x014d, 0x014d, 0x014d, 0x014d, 0x014d, 0x014d,
         0x014d, 0x014d, 0x014d, 0x014d, 0x014d, 0x014d,
@@ -297,6 +309,146 @@ static const u32 b43_lcntab_0x18[] = {
         0x00080000, 0x00080000, 0x00080000, 0x00080000,
 };
 
+/**************************************************
+ * TX gain.
+ **************************************************/
+
+const struct b43_lcntab_tx_gain_tbl_entry
+        b43_lcntab_tx_gain_tbl_2ghz_ext_pa_rev0[B43_LCNTAB_TX_GAIN_SIZE] = {
+        { 0x03, 0x00, 0x1f, 0x0, 0x48 },
+        { 0x03, 0x00, 0x1f, 0x0, 0x46 },
+        { 0x03, 0x00, 0x1f, 0x0, 0x44 },
+        { 0x03, 0x00, 0x1e, 0x0, 0x43 },
+        { 0x03, 0x00, 0x1d, 0x0, 0x44 },
+        { 0x03, 0x00, 0x1c, 0x0, 0x44 },
+        { 0x03, 0x00, 0x1b, 0x0, 0x45 },
+        { 0x03, 0x00, 0x1a, 0x0, 0x46 },
+        { 0x03, 0x00, 0x19, 0x0, 0x46 },
+        { 0x03, 0x00, 0x18, 0x0, 0x47 },
+        { 0x03, 0x00, 0x17, 0x0, 0x48 },
+        { 0x03, 0x00, 0x17, 0x0, 0x46 },
+        { 0x03, 0x00, 0x16, 0x0, 0x47 },
+        { 0x03, 0x00, 0x15, 0x0, 0x48 },
+        { 0x03, 0x00, 0x15, 0x0, 0x46 },
+        { 0x03, 0x00, 0x15, 0x0, 0x44 },
+        { 0x03, 0x00, 0x15, 0x0, 0x42 },
+        { 0x03, 0x00, 0x15, 0x0, 0x40 },
+        { 0x03, 0x00, 0x15, 0x0, 0x3f },
+        { 0x03, 0x00, 0x14, 0x0, 0x40 },
+        { 0x03, 0x00, 0x13, 0x0, 0x41 },
+        { 0x03, 0x00, 0x13, 0x0, 0x40 },
+        { 0x03, 0x00, 0x12, 0x0, 0x41 },
+        { 0x03, 0x00, 0x12, 0x0, 0x40 },
+        { 0x03, 0x00, 0x11, 0x0, 0x41 },
+        { 0x03, 0x00, 0x11, 0x0, 0x40 },
+        { 0x03, 0x00, 0x10, 0x0, 0x41 },
+        { 0x03, 0x00, 0x10, 0x0, 0x40 },
+        { 0x03, 0x00, 0x10, 0x0, 0x3e },
+        { 0x03, 0x00, 0x10, 0x0, 0x3c },
+        { 0x03, 0x00, 0x10, 0x0, 0x3a },
+        { 0x03, 0x00, 0x0f, 0x0, 0x3d },
+        { 0x03, 0x00, 0x0f, 0x0, 0x3b },
+        { 0x03, 0x00, 0x0e, 0x0, 0x3d },
+        { 0x03, 0x00, 0x0e, 0x0, 0x3c },
+        { 0x03, 0x00, 0x0e, 0x0, 0x3a },
+        { 0x03, 0x00, 0x0d, 0x0, 0x3c },
+        { 0x03, 0x00, 0x0d, 0x0, 0x3b },
+        { 0x03, 0x00, 0x0c, 0x0, 0x3e },
+        { 0x03, 0x00, 0x0c, 0x0, 0x3c },
+        { 0x03, 0x00, 0x0c, 0x0, 0x3a },
+        { 0x03, 0x00, 0x0b, 0x0, 0x3e },
+        { 0x03, 0x00, 0x0b, 0x0, 0x3c },
+        { 0x03, 0x00, 0x0b, 0x0, 0x3b },
+        { 0x03, 0x00, 0x0b, 0x0, 0x39 },
+        { 0x03, 0x00, 0x0a, 0x0, 0x3d },
+        { 0x03, 0x00, 0x0a, 0x0, 0x3b },
+        { 0x03, 0x00, 0x0a, 0x0, 0x39 },
+        { 0x03, 0x00, 0x09, 0x0, 0x3e },
+        { 0x03, 0x00, 0x09, 0x0, 0x3c },
+        { 0x03, 0x00, 0x09, 0x0, 0x3a },
+        { 0x03, 0x00, 0x09, 0x0, 0x39 },
+        { 0x03, 0x00, 0x08, 0x0, 0x3e },
+        { 0x03, 0x00, 0x08, 0x0, 0x3c },
+        { 0x03, 0x00, 0x08, 0x0, 0x3a },
+        { 0x03, 0x00, 0x08, 0x0, 0x39 },
+        { 0x03, 0x00, 0x08, 0x0, 0x37 },
+        { 0x03, 0x00, 0x07, 0x0, 0x3d },
+        { 0x03, 0x00, 0x07, 0x0, 0x3c },
+        { 0x03, 0x00, 0x07, 0x0, 0x3a },
+        { 0x03, 0x00, 0x07, 0x0, 0x38 },
+        { 0x03, 0x00, 0x07, 0x0, 0x37 },
+        { 0x03, 0x00, 0x06, 0x0, 0x3e },
+        { 0x03, 0x00, 0x06, 0x0, 0x3c },
+        { 0x03, 0x00, 0x06, 0x0, 0x3a },
+        { 0x03, 0x00, 0x06, 0x0, 0x39 },
+        { 0x03, 0x00, 0x06, 0x0, 0x37 },
+        { 0x03, 0x00, 0x06, 0x0, 0x36 },
+        { 0x03, 0x00, 0x06, 0x0, 0x34 },
+        { 0x03, 0x00, 0x05, 0x0, 0x3d },
+        { 0x03, 0x00, 0x05, 0x0, 0x3b },
+        { 0x03, 0x00, 0x05, 0x0, 0x39 },
+        { 0x03, 0x00, 0x05, 0x0, 0x38 },
+        { 0x03, 0x00, 0x05, 0x0, 0x36 },
+        { 0x03, 0x00, 0x05, 0x0, 0x35 },
+        { 0x03, 0x00, 0x05, 0x0, 0x33 },
+        { 0x03, 0x00, 0x04, 0x0, 0x3e },
+        { 0x03, 0x00, 0x04, 0x0, 0x3c },
+        { 0x03, 0x00, 0x04, 0x0, 0x3a },
+        { 0x03, 0x00, 0x04, 0x0, 0x39 },
+        { 0x03, 0x00, 0x04, 0x0, 0x37 },
+        { 0x03, 0x00, 0x04, 0x0, 0x36 },
+        { 0x03, 0x00, 0x04, 0x0, 0x34 },
+        { 0x03, 0x00, 0x04, 0x0, 0x33 },
+        { 0x03, 0x00, 0x04, 0x0, 0x31 },
+        { 0x03, 0x00, 0x04, 0x0, 0x30 },
+        { 0x03, 0x00, 0x04, 0x0, 0x2e },
+        { 0x03, 0x00, 0x03, 0x0, 0x3c },
+        { 0x03, 0x00, 0x03, 0x0, 0x3a },
+        { 0x03, 0x00, 0x03, 0x0, 0x39 },
+        { 0x03, 0x00, 0x03, 0x0, 0x37 },
+        { 0x03, 0x00, 0x03, 0x0, 0x36 },
+        { 0x03, 0x00, 0x03, 0x0, 0x34 },
+        { 0x03, 0x00, 0x03, 0x0, 0x33 },
+        { 0x03, 0x00, 0x03, 0x0, 0x31 },
+        { 0x03, 0x00, 0x03, 0x0, 0x30 },
+        { 0x03, 0x00, 0x03, 0x0, 0x2e },
+        { 0x03, 0x00, 0x03, 0x0, 0x2d },
+        { 0x03, 0x00, 0x03, 0x0, 0x2c },
+        { 0x03, 0x00, 0x03, 0x0, 0x2b },
+        { 0x03, 0x00, 0x03, 0x0, 0x29 },
+        { 0x03, 0x00, 0x02, 0x0, 0x3d },
+        { 0x03, 0x00, 0x02, 0x0, 0x3b },
+        { 0x03, 0x00, 0x02, 0x0, 0x39 },
+        { 0x03, 0x00, 0x02, 0x0, 0x38 },
+        { 0x03, 0x00, 0x02, 0x0, 0x36 },
+        { 0x03, 0x00, 0x02, 0x0, 0x35 },
+        { 0x03, 0x00, 0x02, 0x0, 0x33 },
+        { 0x03, 0x00, 0x02, 0x0, 0x32 },
+        { 0x03, 0x00, 0x02, 0x0, 0x30 },
+        { 0x03, 0x00, 0x02, 0x0, 0x2f },
+        { 0x03, 0x00, 0x02, 0x0, 0x2e },
+        { 0x03, 0x00, 0x02, 0x0, 0x2c },
+        { 0x03, 0x00, 0x02, 0x0, 0x2b },
+        { 0x03, 0x00, 0x02, 0x0, 0x2a },
+        { 0x03, 0x00, 0x02, 0x0, 0x29 },
+        { 0x03, 0x00, 0x02, 0x0, 0x27 },
+        { 0x03, 0x00, 0x02, 0x0, 0x26 },
+        { 0x03, 0x00, 0x02, 0x0, 0x25 },
+        { 0x03, 0x00, 0x02, 0x0, 0x24 },
+        { 0x03, 0x00, 0x02, 0x0, 0x23 },
+        { 0x03, 0x00, 0x02, 0x0, 0x22 },
+        { 0x03, 0x00, 0x02, 0x0, 0x21 },
+        { 0x03, 0x00, 0x02, 0x0, 0x20 },
+        { 0x03, 0x00, 0x01, 0x0, 0x3f },
+        { 0x03, 0x00, 0x01, 0x0, 0x3d },
+        { 0x03, 0x00, 0x01, 0x0, 0x3b },
+        { 0x03, 0x00, 0x01, 0x0, 0x39 },
+};
+
+/**************************************************
+ * SW control.
+ **************************************************/
+
 const u16 b43_lcntab_sw_ctl_4313_epa_rev0[] = {
         0x0002, 0x0008, 0x0004, 0x0001, 0x0002, 0x0008,
         0x0004, 0x0001, 0x0002, 0x0008, 0x0004, 0x0001,
@@ -479,6 +631,32 @@ static void b43_phy_lcn_upload_static_tables(struct b43_wldev *dev)
         lcntab_upload(dev, B43_LCNTAB32(0x18, 0), b43_lcntab_0x18);
 }
 
+void b43_phy_lcn_load_tx_gain_tab(struct b43_wldev *dev,
+                        const struct b43_lcntab_tx_gain_tbl_entry *gain_table)
+{
+        u32 i;
+        u32 val;
+
+        u16 pa_gain = 0x70;
+        if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_FEM)
+                pa_gain = 0x10;
+
+        for (i = 0; i < B43_LCNTAB_TX_GAIN_SIZE; i++) {
+                val = ((pa_gain << 24) |
+                       (gain_table[i].pad << 16) |
+                       (gain_table[i].pga << 8) |
+                        gain_table[i].gm);
+                b43_lcntab_write(dev, B43_LCNTAB32(0x7, 0xc0 + i), val);
+
+                /* brcmsmac doesn't maskset, we follow newer wl here */
+                val = b43_lcntab_read(dev, B43_LCNTAB32(0x7, 0x140 + i));
+                val &= 0x000fffff;
+                val |= ((gain_table[i].dac << 28) |
+                        (gain_table[i].bb_mult << 20));
+                b43_lcntab_write(dev, B43_LCNTAB32(0x7, 0x140 + i), val);
+        }
+}
+
 /* Not implemented in brcmsmac, noticed in wl in MMIO dump */
 static void b43_phy_lcn_rewrite_tables(struct b43_wldev *dev)
 {
@@ -499,13 +677,24 @@ static void b43_phy_lcn_clean_papd_comp_table(struct b43_wldev *dev)
                 b43_lcntab_write(dev, B43_LCNTAB32(0x18, i), 0x80000);
 }
 
+/* wlc_lcnphy_tbl_init */
 void b43_phy_lcn_tables_init(struct b43_wldev *dev)
 {
+        struct ssb_sprom *sprom = dev->dev->bus_sprom;
+
         b43_phy_lcn_upload_static_tables(dev);
-        /* TODO: various tables ops here */
 
-        if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_FEM &&
-            !(dev->dev->bus_sprom->boardflags_hi & B43_BFH_FEM_BT))
+        if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
+                if (sprom->boardflags_lo & B43_BFL_EXTLNA)
+                        b43_phy_lcn_load_tx_gain_tab(dev,
+                                b43_lcntab_tx_gain_tbl_2ghz_ext_pa_rev0);
+                else
+                        b43err(dev->wl,
+                               "TX gain table unknown for this card\n");
+        }
+
+        if (sprom->boardflags_lo & B43_BFL_FEM &&
+            !(sprom->boardflags_hi & B43_BFH_FEM_BT))
                 b43_lcntab_write_bulk(dev, B43_LCNTAB16(0xf, 0),
                         ARRAY_SIZE(b43_lcntab_sw_ctl_4313_epa_rev0),
                         b43_lcntab_sw_ctl_4313_epa_rev0);
diff --git a/drivers/net/wireless/b43/tables_phy_lcn.h b/drivers/net/wireless/b43/tables_phy_lcn.h
index b6471e89c36..caff9db6831 100644
--- a/drivers/net/wireless/b43/tables_phy_lcn.h
+++ b/drivers/net/wireless/b43/tables_phy_lcn.h
@@ -10,6 +10,8 @@
 #define B43_LCNTAB16(table, offset)     (((table) << 10) | (offset) | B43_LCNTAB_16BIT)
 #define B43_LCNTAB32(table, offset)     (((table) << 10) | (offset) | B43_LCNTAB_32BIT)
 
+#define B43_LCNTAB_TX_GAIN_SIZE         128
+
 u32 b43_lcntab_read(struct b43_wldev *dev, u32 offset);
 void b43_lcntab_read_bulk(struct b43_wldev *dev, u32 offset,
                           unsigned int nr_elements, void *_data);