b43: N-PHY: rev3+: add tables with gain ctl workarounds

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

2 files changed, 128 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43/tables_nphy.c b/drivers/net/wireless/b43/tables_nphy.c
index c42b2acea24e..2de483b3d3ba 100644
--- a/drivers/net/wireless/b43/tables_nphy.c
+++ b/drivers/net/wireless/b43/tables_nphy.c
@@ -2709,6 +2709,79 @@ const struct nphy_rf_control_override_rev3 tbl_rf_control_override_rev3[] = {
         { 0x00C0,  6, 0xE7, 0xF9, 0xEC, 0xFB }  /* field == 0x4000 (fls 15) */
 };
 
+struct nphy_gain_ctl_workaround_entry nphy_gain_ctl_workaround[2][3] = {
+        { /* 2GHz */
+                { /* PHY rev 3 */
+                        { 7, 11, 16, 23 },
+                        { -5, 6, 10, 14 },
+                        { 0xA, 0xA, 0xA, 0xA, 0xA, 0xA, 0xA, 0xA, 0xA, 0xA },
+                        { 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 },
+                        0x627E,
+                        { 0x613F, 0x613F, 0x613F, 0x613F },
+                        0x107E, 0x0066, 0x0074,
+                        0x18, 0x18, 0x18,
+                        0x020D, 0x5,
+                },
+                { /* PHY rev 4 */
+                        { 8, 12, 17, 25 },
+                        { -5, 6, 10, 14 },
+                        { 0xA, 0xA, 0xA, 0xA, 0xA, 0xA, 0xA, 0xA, 0xA, 0xA },
+                        { 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 },
+                        0x527E,
+                        { 0x513F, 0x513F, 0x513F, 0x513F },
+                        0x007E, 0x0066, 0x0074,
+                        0x18, 0x18, 0x18,
+                        0x01A1, 0x5,
+                },
+                { /* PHY rev 5+ */
+                        { 9, 13, 18, 26 },
+                        { -3, 7, 11, 16 },
+                        { 0xA, 0xA, 0xA, 0xA, 0xA, 0xA, 0xA, 0xA, 0xA, 0xA },
+                        { 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 },
+                        0x427E, /* invalid for external LNA! */
+                        { 0x413F, 0x413F, 0x413F, 0x413F }, /* invalid for external LNA! */
+                        0x1076, 0x0066, 0x106A,
+                        0xC, 0xC, 0xC,
+                        0x01D0, 0x5,
+                },
+        },
+        { /* 5GHz */
+                { /* PHY rev 3 */
+                        { 7, 11, 17, 23 },
+                        { -6, 2, 6, 10 },
+                        { 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13 },
+                        { 6, 6, 6, 6, 6, 6, 6, 6, 6, 6 },
+                        0x52DE,
+                        { 0x516F, 0x516F, 0x516F, 0x516F },
+                        0x00DE, 0x00CA, 0x00CC,
+                        0x1E, 0x1E, 0x1E,
+                        0x01A1, 25,
+                },
+                { /* PHY rev 4 */
+                        { 8, 12, 18, 23 },
+                        { -5, 2, 6, 10 },
+                        { 0xD, 0xD, 0xD, 0xD, 0xD, 0xD, 0xD, 0xD, 0xD, 0xD },
+                        { 4, 4, 4, 4, 4, 4, 4, 4, 4, 4 },
+                        0x629E,
+                        { 0x614F, 0x614F, 0x614F, 0x614F },
+                        0x029E, 0x1084, 0x0086,
+                        0x24, 0x24, 0x24,
+                        0x0107, 25,
+                },
+                { /* PHY rev 5+ */
+                        { 6, 10, 16, 21 },
+                        { -7, 0, 4, 8 },
+                        { 0xD, 0xD, 0xD, 0xD, 0xD, 0xD, 0xD, 0xD, 0xD, 0xD },
+                        { 4, 4, 4, 4, 4, 4, 4, 4, 4, 4 },
+                        0x729E,
+                        { 0x714F, 0x714F, 0x714F, 0x714F },
+                        0x029E, 0x2084, 0x2086,
+                        0x24, 0x24, 0x24,
+                        0x00A9, 25,
+                },
+        },
+};
+
 static inline void assert_ntab_array_sizes(void)
 {
 #undef check
@@ -2957,3 +3030,33 @@ void b43_nphy_rev3plus_tables_init(struct b43_wldev *dev)
         /* Volatile tables */
         /* TODO */
 }
+
+struct nphy_gain_ctl_workaround_entry *b43_nphy_get_gain_ctl_workaround_ent(
+        struct b43_wldev *dev, bool ghz5, bool ext_lna)
+{
+        struct nphy_gain_ctl_workaround_entry *e;
+        u8 phy_idx;
+
+        B43_WARN_ON(dev->phy.rev < 3);
+        if (dev->phy.rev >= 5)
+                phy_idx = 2;
+        else if (dev->phy.rev == 4)
+                phy_idx = 1;
+        else
+                phy_idx = 0;
+
+        e = &nphy_gain_ctl_workaround[ghz5][phy_idx];
+
+        /* Only one entry differs for external LNA, so instead making whole
+         * table 2 times bigger, hack is here
+         */
+        if (!ghz5 && dev->phy.rev >= 5 && ext_lna) {
+                e->rfseq_init[0] &= 0x0FFF;
+                e->rfseq_init[1] &= 0x0FFF;
+                e->rfseq_init[2] &= 0x0FFF;
+                e->rfseq_init[3] &= 0x0FFF;
+                e->init_gain &= 0x0FFF;
+        }
+
+        return e;
+}
diff --git a/drivers/net/wireless/b43/tables_nphy.h b/drivers/net/wireless/b43/tables_nphy.h
index 016a480b2dc6..18569367ce43 100644
--- a/drivers/net/wireless/b43/tables_nphy.h
+++ b/drivers/net/wireless/b43/tables_nphy.h
@@ -35,6 +35,31 @@ struct nphy_rf_control_override_rev3 {
         u8 val_addr1;
 };
 
+struct nphy_gain_ctl_workaround_entry {
+        s8 lna1_gain[4];
+        s8 lna2_gain[4];
+        u8 gain_db[10];
+        u8 gain_bits[10];
+
+        u16 init_gain;
+        u16 rfseq_init[4];
+
+        u16 cliphi_gain;
+        u16 clipmd_gain;
+        u16 cliplo_gain;
+
+        u16 crsmin;
+        u16 crsminl;
+        u16 crsminu;
+
+        u16 nbclip;
+        u16 wlclip;
+};
+
+/* Get entry with workaround values for gain ctl. Does not return NULL. */
+struct nphy_gain_ctl_workaround_entry *b43_nphy_get_gain_ctl_workaround_ent(
+        struct b43_wldev *dev, bool ghz5, bool ext_lna);
+
 /* Get the NPHY Channel Switch Table entry for a channel.
  * Returns NULL on failure to find an entry. */
 const struct b43_nphy_channeltab_entry_rev2 *