[media] it913x-fe ver 1.13 add BER and UNC monitoring

Add BER monitoring with Pre-Viterbi error rate.

Add UCBLOCKS based on Aborted packets.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 27 insertions, 4 deletions

diff --git a/drivers/media/dvb/frontends/it913x-fe.c b/drivers/media/dvb/frontends/it913x-fe.c
index 29cb47eb2f8e..7290801eac63 100644
--- a/drivers/media/dvb/frontends/it913x-fe.c
+++ b/drivers/media/dvb/frontends/it913x-fe.c
@@ -66,6 +66,7 @@ struct it913x_fe_state {
         u8 tun_fdiv;
         u8 tun_clk_mode;
         u32 tun_fn_min;
+        u32 ucblocks;
 };
 
 static int it913x_read_reg(struct it913x_fe_state *state,
@@ -562,14 +563,26 @@ static int it913x_fe_read_snr(struct dvb_frontend *fe, u16 *snr)
 
 static int it913x_fe_read_ber(struct dvb_frontend *fe, u32 *ber)
 {
-        *ber = 0;
+        struct it913x_fe_state *state = fe->demodulator_priv;
+        int ret;
+        u8 reg[5];
+        /* Read Aborted Packets and Pre-Viterbi error rate 5 bytes */
+        ret = it913x_read_reg(state, RSD_ABORT_PKT_LSB, reg, sizeof(reg));
+        state->ucblocks += (u32)(reg[1] << 8) | reg[0];
+        *ber = (u32)(reg[4] << 16) | (reg[3] << 8) | reg[2];
         return 0;
 }
 
 static int it913x_fe_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
 {
-        *ucblocks = 0;
-        return 0;
+        struct it913x_fe_state *state = fe->demodulator_priv;
+        int ret;
+        u8 reg[2];
+        /* Aborted Packets */
+        ret = it913x_read_reg(state, RSD_ABORT_PKT_LSB, reg, sizeof(reg));
+        state->ucblocks += (u32)(reg[1] << 8) | reg[0];
+        *ucblocks = state->ucblocks;
+        return ret;
 }
 
 static int it913x_fe_get_frontend(struct dvb_frontend *fe)
@@ -959,5 +972,5 @@ static struct dvb_frontend_ops it913x_fe_ofdm_ops = {
 
 MODULE_DESCRIPTION("it913x Frontend and it9137 tuner");
 MODULE_AUTHOR("Malcolm Priestley tvboxspy@gmail.com");
-MODULE_VERSION("1.12");
+MODULE_VERSION("1.13");
 MODULE_LICENSE("GPL");
diff --git a/drivers/media/dvb/frontends/it913x-fe.h b/drivers/media/dvb/frontends/it913x-fe.h
index 5ee3e2f14165..c4a908e354e0 100644
--- a/drivers/media/dvb/frontends/it913x-fe.h
+++ b/drivers/media/dvb/frontends/it913x-fe.h
@@ -148,6 +148,16 @@ static inline struct dvb_frontend *it913x_fe_attach(
 #define COEFF_1_2048            0x0001
 #define XTAL_CLK                0x0025
 #define BFS_FCW                 0x0029
+
+/* Error Regs */
+#define RSD_ABORT_PKT_LSB       0x0032
+#define RSD_ABORT_PKT_MSB       0x0033
+#define RSD_BIT_ERR_0_7         0x0034
+#define RSD_BIT_ERR_8_15        0x0035
+#define RSD_BIT_ERR_23_16       0x0036
+#define RSD_BIT_COUNT_LSB       0x0037
+#define RSD_BIT_COUNT_MSB       0x0038
+
 #define TPSD_LOCK               0x003c
 #define TRAINING_MODE           0x0040
 #define ADC_X_2                 0x0045