diff options
Diffstat (limited to 'drivers/media/dvb/frontends/tda10048.c')
| -rw-r--r-- | drivers/media/dvb/frontends/tda10048.c | 43 |
1 files changed, 32 insertions, 11 deletions
diff --git a/drivers/media/dvb/frontends/tda10048.c b/drivers/media/dvb/frontends/tda10048.c index 4e2a7c8b2f6..93f6a75c238 100644 --- a/drivers/media/dvb/frontends/tda10048.c +++ b/drivers/media/dvb/frontends/tda10048.c @@ -25,6 +25,7 @@ #include <linux/string.h> #include <linux/slab.h> #include <linux/delay.h> +#include <linux/math64.h> #include <asm/div64.h> #include "dvb_frontend.h" #include "dvb_math.h" @@ -49,8 +50,8 @@ #define TDA10048_CONF_C4_1 0x1E #define TDA10048_CONF_C4_2 0x1F #define TDA10048_CODE_IN_RAM 0x20 -#define TDA10048_CHANNEL_INFO_1_R 0x22 -#define TDA10048_CHANNEL_INFO_2_R 0x23 +#define TDA10048_CHANNEL_INFO1_R 0x22 +#define TDA10048_CHANNEL_INFO2_R 0x23 #define TDA10048_CHANNEL_INFO1 0x24 #define TDA10048_CHANNEL_INFO2 0x25 #define TDA10048_TIME_ERROR_R 0x26 @@ -63,8 +64,8 @@ #define TDA10048_IT_STAT 0x32 #define TDA10048_DSP_AD_LSB 0x3C #define TDA10048_DSP_AD_MSB 0x3D -#define TDA10048_DSP_REF_LSB 0x3E -#define TDA10048_DSP_REF_MSB 0x3F +#define TDA10048_DSP_REG_LSB 0x3E +#define TDA10048_DSP_REG_MSB 0x3F #define TDA10048_CONF_TRISTATE1 0x44 #define TDA10048_CONF_TRISTATE2 0x45 #define TDA10048_CONF_POLARITY 0x46 @@ -112,7 +113,7 @@ #define TDA10048_FREE_REG_1 0xB2 #define TDA10048_FREE_REG_2 0xB3 #define TDA10048_CONF_C3_1 0xC0 -#define TDA10048_CYBER_CTRL 0xC2 +#define TDA10048_CVBER_CTRL 0xC2 #define TDA10048_CBER_NMAX_LSB 0xC4 #define TDA10048_CBER_NMAX_MSB 0xC5 #define TDA10048_CBER_LSB 0xC6 @@ -120,7 +121,7 @@ #define TDA10048_VBER_LSB 0xC8 #define TDA10048_VBER_MID 0xC9 #define TDA10048_VBER_MSB 0xCA -#define TDA10048_CYBER_LUT 0xCC +#define TDA10048_CVBER_LUT 0xCC #define TDA10048_UNCOR_CTRL 0xCD #define TDA10048_UNCOR_CPT_LSB 0xCE #define TDA10048_UNCOR_CPT_MSB 0xCF @@ -183,7 +184,7 @@ static struct init_tab { { TDA10048_AGC_IF_MAX, 0xff }, { TDA10048_AGC_THRESHOLD_MSB, 0x00 }, { TDA10048_AGC_THRESHOLD_LSB, 0x70 }, - { TDA10048_CYBER_CTRL, 0x38 }, + { TDA10048_CVBER_CTRL, 0x38 }, { TDA10048_AGC_GAINS, 0x12 }, { TDA10048_CONF_XO, 0x00 }, { TDA10048_CONF_TS1, 0x07 }, @@ -688,7 +689,7 @@ static int tda10048_get_tps(struct tda10048_state *state, p->guard_interval = GUARD_INTERVAL_1_4; break; } - switch (val & 0x02) { + switch (val & 0x03) { case 0: p->transmission_mode = TRANSMISSION_MODE_2K; break; @@ -765,6 +766,8 @@ static int tda10048_set_frontend(struct dvb_frontend *fe, /* Enable demod TPS auto detection and begin acquisition */ tda10048_writereg(state, TDA10048_AUTO, 0x57); + /* trigger cber and vber acquisition */ + tda10048_writereg(state, TDA10048_CVBER_CTRL, 0x3B); return 0; } @@ -830,12 +833,27 @@ static int tda10048_read_status(struct dvb_frontend *fe, fe_status_t *status) static int tda10048_read_ber(struct dvb_frontend *fe, u32 *ber) { struct tda10048_state *state = fe->demodulator_priv; + static u32 cber_current; + u32 cber_nmax; + u64 cber_tmp; dprintk(1, "%s()\n", __func__); - /* TODO: A reset may be required here */ - *ber = tda10048_readreg(state, TDA10048_CBER_MSB) << 8 | - tda10048_readreg(state, TDA10048_CBER_LSB); + /* update cber on interrupt */ + if (tda10048_readreg(state, TDA10048_SOFT_IT_C3) & 0x01) { + cber_tmp = tda10048_readreg(state, TDA10048_CBER_MSB) << 8 | + tda10048_readreg(state, TDA10048_CBER_LSB); + cber_nmax = tda10048_readreg(state, TDA10048_CBER_NMAX_MSB) << 8 | + tda10048_readreg(state, TDA10048_CBER_NMAX_LSB); + cber_tmp *= 100000000; + cber_tmp *= 2; + cber_tmp = div_u64(cber_tmp, (cber_nmax * 32) + 1); + cber_current = (u32)cber_tmp; + /* retrigger cber acquisition */ + tda10048_writereg(state, TDA10048_CVBER_CTRL, 0x39); + } + /* actual cber is (*ber)/1e8 */ + *ber = cber_current; return 0; } @@ -1015,6 +1033,9 @@ static int tda10048_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) *ucblocks = tda10048_readreg(state, TDA10048_UNCOR_CPT_MSB) << 8 | tda10048_readreg(state, TDA10048_UNCOR_CPT_LSB); + /* clear the uncorrected TS packets counter when saturated */ + if (*ucblocks == 0xFFFF) + tda10048_writereg(state, TDA10048_UNCOR_CTRL, 0x80); return 0; } |