From: Jes Sorensen
The 8723bu also has it's own IQK calibration process. This is similar
in flow, but still different enough to warrent it's own
implementation, at least for now.
Signed-off-by: Jes Sorensen
---
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c | 811 -
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 1 +
.../net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h | 17 +
3 files changed, 827 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
index e543a26..b2aa723 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
@@ -3510,6 +3510,91 @@ static bool rtl8xxxu_simularity_compare(struct
rtl8xxxu_priv *priv,
return false;
}
+static bool rtl8723bu_simularity_compare(struct rtl8xxxu_priv *priv,
+int result[][8], int c1, int c2)
+{
+ u32 i, j, diff, simubitmap, bound = 0;
+ int candidate[2] = {-1, -1};/* for path A and path B */
+ int tmp1, tmp2;
+ bool retval = true;
+
+ if (priv->tx_paths > 1)
+ bound = 8;
+ else
+ bound = 4;
+
+ simubitmap = 0;
+
+ for (i = 0; i < bound; i++) {
+ if (i & 1) {
+ if ((result[c1][i] & 0x0200))
+ tmp1 = result[c1][i] | 0xfc00;
+ else
+ tmp1 = result[c1][i];
+
+ if ((result[c2][i]& 0x0200))
+ tmp2 = result[c2][i] | 0xfc00;
+ else
+ tmp2 = result[c2][i];
+ } else {
+ tmp1 = result[c1][i];
+ tmp2 = result[c2][i];
+ }
+
+ diff = (tmp1 > tmp2) ? (tmp1 - tmp2) : (tmp2 - tmp1);
+
+ if (diff > MAX_TOLERANCE) {
+ if ((i == 2 || i == 6) && !simubitmap) {
+ if (result[c1][i] + result[c1][i + 1] == 0)
+ candidate[(i / 4)] = c2;
+ else if (result[c2][i] + result[c2][i + 1] == 0)
+ candidate[(i / 4)] = c1;
+ else
+ simubitmap = simubitmap | (1 << i);
+ } else {
+ simubitmap = simubitmap | (1 << i);
+ }
+ }
+ }
+
+ if (simubitmap == 0) {
+ for (i = 0; i < (bound / 4); i++) {
+ if (candidate[i] >= 0) {
+ for (j = i * 4; j < (i + 1) * 4 - 2; j++)
+ result[3][j] = result[candidate[i]][j];
+ retval = false;
+ }
+ }
+ return retval;
+ } else {
+ if (!(simubitmap & 0x03)) {
+ /* path A TX OK */
+ for (i = 0; i < 2; i++)
+ result[3][i] = result[c1][i];
+ }
+
+ if (!(simubitmap & 0x0c)) {
+ /* path A RX OK */
+ for (i = 2; i < 4; i++)
+ result[3][i] = result[c1][i];
+ }
+
+ if (!(simubitmap & 0x30) && priv->tx_paths > 1) {
+ /* path B RX OK */
+ for (i = 4; i < 6; i++)
+ result[3][i] = result[c1][i];
+ }
+
+ if (!(simubitmap & 0x30) && priv->tx_paths > 1) {
+ /* path B RX OK */
+ for (i = 6; i < 8; i++)
+ result[3][i] = result[c1][i];
+ }
+ }
+
+ return false;
+}
+
static void
rtl8xxxu_save_mac_regs(struct rtl8xxxu_priv *priv, const u32 *reg, u32 *backup)
{
@@ -3677,6 +3762,369 @@ out:
return result;
}
+static int rtl8723bu_iqk_path_a(struct rtl8xxxu_priv *priv)
+{
+ u32 reg_eac, reg_e94, reg_e9c, path_sel, val32;
+ int result = 0;
+
+ path_sel = rtl8xxxu_read32(priv, REG_S0S1_PATH_SWITCH);
+
+ /*
+* Leave IQK mode
+*/
+ val32 = rtl8xxxu_read32(priv, REG_FPGA0_IQK);
+ val32 &= 0x00ff;
+ rtl8xxxu_write32(priv, REG_FPGA0_IQK, val32);
+
+ /*
+* Enable path A PA in TX IQK mode
+*/
+ val32 = rtl8xxxu_read_rfreg(priv, RF_A, RF6052_REG_WE_LUT);
+ val32 |= 0x8;
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_WE_LUT, val32);
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_RCK_OS, 0x2);
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G1, 0x0003f);
+ rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G