From: Malcolm Priestley <tvboxspy@gmail.com>
To: linux-media@vger.kernel.org
Subject: [PATCH] it913x-fe ver 1.13 add BER and UNC monitoring
Date: Tue, 03 Jan 2012 10:28:32 +0000 [thread overview]
Message-ID: <1325586512.14924.7.camel@tvbox> (raw)
Add BER monitoring with Pre-Viterbi error rate.
Add UCBLOCKS based on Aborted packets.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
---
drivers/media/dvb/frontends/it913x-fe.c | 21 +++++++++++++++++----
drivers/media/dvb/frontends/it913x-fe.h | 10 ++++++++++
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 8088e62..70131b9 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,
@@ -553,14 +554,26 @@ 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,
@@ -951,5 +964,5 @@ 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 5ee3e2f..c4a908e 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
--
1.7.7.3
reply other threads:[~2012-01-03 10:28 UTC|newest]
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