now driver returns correct values for DVB-C:
BER (post_bit_count and post_bit_error values)
UCB (count of uncorrected errors)
also, some code cleanup was done - checkpatch.pl now is happy
Signed-off-by: Abylay Ospan <aospan@xxxxxxxx>
---
drivers/media/dvb-frontends/cxd2841er.c | 87 +++++++++++++++++++++++++++++++--
1 file changed, 84 insertions(+), 3 deletions(-)
diff --git a/drivers/media/dvb-frontends/cxd2841er.c b/drivers/media/dvb-frontends/cxd2841er.c
index b2bfbaa..623b04f3 100644
--- a/drivers/media/dvb-frontends/cxd2841er.c
+++ b/drivers/media/dvb-frontends/cxd2841er.c
@@ -36,6 +36,16 @@
#include "cxd2841er_priv.h"
#define MAX_WRITE_REGSIZE 16
+#define LOG2_E_100X 144
+
+/* DVB-C constellation */
+enum sony_dvbc_constellation_t {
+ SONY_DVBC_CONSTELLATION_16QAM,
+ SONY_DVBC_CONSTELLATION_32QAM,
+ SONY_DVBC_CONSTELLATION_64QAM,
+ SONY_DVBC_CONSTELLATION_128QAM,
+ SONY_DVBC_CONSTELLATION_256QAM
+};
enum cxd2841er_state {
STATE_SHUTDOWN = 0,
@@ -1262,6 +1272,24 @@ static int cxd2841er_get_carrier_offset_c(struct cxd2841er_priv *priv,
return 0;
}
+static int cxd2841er_read_packet_errors_c(
+ struct cxd2841er_priv *priv, u32 *penum)
+{
+ u8 data[3];
+
+ *penum = 0;
+ if (priv->state != STATE_ACTIVE_TC) {
+ dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
+ __func__, priv->state);
+ return -EINVAL;
+ }
+ cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
+ cxd2841er_read_regs(priv, I2C_SLVT, 0xea, data, sizeof(data));
+ if (data[2] & 0x01)
+ *penum = ((u32)data[0] << 8) | (u32)data[1];
+ return 0;
+}
+
static int cxd2841er_read_packet_errors_t(
struct cxd2841er_priv *priv, u32 *penum)
{
@@ -1330,6 +1358,49 @@ static int cxd2841er_read_packet_errors_i(
return 0;
}
+static int cxd2841er_read_ber_c(struct cxd2841er_priv *priv,
+ u32 *bit_error, u32 *bit_count)
+{
+ u8 data[3];
+ u32 bit_err, period_exp;
+
+ dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
+ if (priv->state != STATE_ACTIVE_TC) {
+ dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
+ __func__, priv->state);
+ return -EINVAL;
+ }
+ cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
+ cxd2841er_read_regs(priv, I2C_SLVT, 0x62, data, sizeof(data));
+ if (!(data[0] & 0x80)) {
+ dev_dbg(&priv->i2c->dev,
+ "%s(): no valid BER data\n", __func__);
+ return -EINVAL;
+ }
+ bit_err = ((u32)(data[0] & 0x3f) << 16) |
+ ((u32)data[1] << 8) |
+ (u32)data[2];
+ cxd2841er_read_reg(priv, I2C_SLVT, 0x60, data);
+ period_exp = data[0] & 0x1f;
+
+ if ((period_exp <= 11) && (bit_err > (1 << period_exp) * 204 * 8)) {
+ dev_dbg(&priv->i2c->dev,
+ "%s(): period_exp(%u) or bit_err(%u) not in range. no valid BER data\n",
+ __func__, period_exp, bit_err);
+ return -EINVAL;
+ }
+
+ dev_dbg(&priv->i2c->dev,
+ "%s(): period_exp(%u) or bit_err(%u) count=%d\n",
+ __func__, period_exp, bit_err,
+ ((1 << period_exp) * 204 * 8));
+
+ *bit_error = bit_err;
+ *bit_count = ((1 << period_exp) * 204 * 8);
+
+ return 0;
+}
+
static int cxd2841er_mon_read_ber_s(struct cxd2841er_priv *priv,
u32 *bit_error, u32 *bit_count)
{
@@ -1461,7 +1532,7 @@ static int cxd2841er_read_ber_t2(struct cxd2841er_priv *priv,
*bit_error *= 3125ULL;
} else {
*bit_count = (1U << period_exp) * (n_ldpc / 200);
- *bit_error *= 50000ULL;;
+ *bit_error *= 50000ULL;
}
return 0;
}
@@ -1713,6 +1784,11 @@ static void cxd2841er_read_ber(struct dvb_frontend *fe)
dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
switch (p->delivery_system) {
+ case SYS_DVBC_ANNEX_A:
+ case SYS_DVBC_ANNEX_B:
+ case SYS_DVBC_ANNEX_C:
+ ret = cxd2841er_read_ber_c(priv, &bit_error, &bit_count);
+ break;
case SYS_DVBS:
ret = cxd2841er_mon_read_ber_s(priv, &bit_error, &bit_count);
break;
@@ -1733,9 +1809,9 @@ static void cxd2841er_read_ber(struct dvb_frontend *fe)
if (!ret) {
p->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
- p->post_bit_error.stat[0].uvalue = bit_error;
+ p->post_bit_error.stat[0].uvalue += bit_error;
p->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
- p->post_bit_count.stat[0].uvalue = bit_count;
+ p->post_bit_count.stat[0].uvalue += bit_count;
} else {
p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
@@ -1832,6 +1908,11 @@ static void cxd2841er_read_ucblocks(struct dvb_frontend *fe)
dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
switch (p->delivery_system) {
+ case SYS_DVBC_ANNEX_A:
+ case SYS_DVBC_ANNEX_B:
+ case SYS_DVBC_ANNEX_C:
+ cxd2841er_read_packet_errors_c(priv, &ucblocks);
+ break;
case SYS_DVBT:
cxd2841er_read_packet_errors_t(priv, &ucblocks);
break;
--
2.7.4
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
