diff options
Diffstat (limited to 'drivers/media/dvb/frontends/tda10023.c')
| -rw-r--r-- | drivers/media/dvb/frontends/tda10023.c | 197 |
1 files changed, 116 insertions, 81 deletions
diff --git a/drivers/media/dvb/frontends/tda10023.c b/drivers/media/dvb/frontends/tda10023.c index c6ff5b82ff80..a3c34eecdee9 100644 --- a/drivers/media/dvb/frontends/tda10023.c +++ b/drivers/media/dvb/frontends/tda10023.c @@ -38,75 +38,29 @@ #include "dvb_frontend.h" #include "tda1002x.h" +#define REG0_INIT_VAL 0x23 struct tda10023_state { struct i2c_adapter* i2c; /* configuration settings */ - const struct tda1002x_config* config; + const struct tda10023_config *config; struct dvb_frontend frontend; u8 pwm; u8 reg0; -}; + /* clock settings */ + u32 xtal; + u8 pll_m; + u8 pll_p; + u8 pll_n; + u32 sysclk; +}; #define dprintk(x...) static int verbose; -#define XTAL 28920000UL -#define PLL_M 8UL -#define PLL_P 4UL -#define PLL_N 1UL -#define SYSCLK (XTAL*PLL_M/(PLL_N*PLL_P)) // -> 57840000 - -static u8 tda10023_inittab[]={ - // reg mask val - 0x2a,0xff,0x02, // PLL3, Bypass, Power Down - 0xff,0x64,0x00, // Sleep 100ms - 0x2a,0xff,0x03, // PLL3, Bypass, Power Down - 0xff,0x64,0x00, // Sleep 100ms - 0x28,0xff,PLL_M-1, // PLL1 M=8 - 0x29,0xff,((PLL_P-1)<<6)|(PLL_N-1), // PLL2 - 0x00,0xff,0x23, // GPR FSAMPLING=1 - 0x2a,0xff,0x08, // PLL3 PSACLK=1 - 0xff,0x64,0x00, // Sleep 100ms - 0x1f,0xff,0x00, // RESET - 0xff,0x64,0x00, // Sleep 100ms - 0xe6,0x0c,0x04, // RSCFG_IND - 0x10,0xc0,0x80, // DECDVBCFG1 PBER=1 - - 0x0e,0xff,0x82, // GAIN1 - 0x03,0x08,0x08, // CLKCONF DYN=1 - 0x2e,0xbf,0x30, // AGCCONF2 TRIAGC=0,POSAGC=ENAGCIF=1 PPWMTUN=0 PPWMIF=0 - 0x01,0xff,0x30, // AGCREF - 0x1e,0x84,0x84, // CONTROL SACLK_ON=1 - 0x1b,0xff,0xc8, // ADC TWOS=1 - 0x3b,0xff,0xff, // IFMAX - 0x3c,0xff,0x00, // IFMIN - 0x34,0xff,0x00, // PWMREF - 0x35,0xff,0xff, // TUNMAX - 0x36,0xff,0x00, // TUNMIN - 0x06,0xff,0x7f, // EQCONF1 POSI=7 ENADAPT=ENEQUAL=DFE=1 // 0x77 - 0x1c,0x30,0x30, // EQCONF2 STEPALGO=SGNALGO=1 - 0x37,0xff,0xf6, // DELTAF_LSB - 0x38,0xff,0xff, // DELTAF_MSB - 0x02,0xff,0x93, // AGCCONF1 IFS=1 KAGCIF=2 KAGCTUN=3 - 0x2d,0xff,0xf6, // SWEEP SWPOS=1 SWDYN=7 SWSTEP=1 SWLEN=2 - 0x04,0x10,0x00, // SWRAMP=1 - 0x12,0xff,0xa1, // INTP1 POCLKP=1 FEL=1 MFS=0 - 0x2b,0x01,0xa1, // INTS1 - 0x20,0xff,0x04, // INTP2 SWAPP=? MSBFIRSTP=? INTPSEL=? - 0x2c,0xff,0x0d, // INTP/S TRIP=0 TRIS=0 - 0xc4,0xff,0x00, - 0xc3,0x30,0x00, - 0xb5,0xff,0x19, // ERAGC_THD - 0x00,0x03,0x01, // GPR, CLBS soft reset - 0x00,0x03,0x03, // GPR, CLBS soft reset - 0xff,0x64,0x00, // Sleep 100ms - 0xff,0xff,0xff -}; - static u8 tda10023_readreg (struct tda10023_state* state, u8 reg) { u8 b0 [] = { reg }; @@ -219,30 +173,34 @@ static int tda10023_set_symbolrate (struct tda10023_state* state, u32 sr) s16 SFIL=0; u16 NDEC = 0; - if (sr < (u32)(SYSCLK/98.40)) { + /* avoid floating point operations multiplying syscloc and divider + by 10 */ + u32 sysclk_x_10 = state->sysclk * 10; + + if (sr < (u32)(sysclk_x_10/984)) { NDEC=3; SFIL=1; - } else if (sr<(u32)(SYSCLK/64.0)) { + } else if (sr < (u32)(sysclk_x_10/640)) { NDEC=3; SFIL=0; - } else if (sr<(u32)(SYSCLK/49.2)) { + } else if (sr < (u32)(sysclk_x_10/492)) { NDEC=2; SFIL=1; - } else if (sr<(u32)(SYSCLK/32.0)) { + } else if (sr < (u32)(sysclk_x_10/320)) { NDEC=2; SFIL=0; - } else if (sr<(u32)(SYSCLK/24.6)) { + } else if (sr < (u32)(sysclk_x_10/246)) { NDEC=1; SFIL=1; - } else if (sr<(u32)(SYSCLK/16.0)) { + } else if (sr < (u32)(sysclk_x_10/160)) { NDEC=1; SFIL=0; - } else if (sr<(u32)(SYSCLK/12.3)) { + } else if (sr < (u32)(sysclk_x_10/123)) { NDEC=0; SFIL=1; } - BDRI=SYSCLK*16; + BDRI = (state->sysclk)*16; BDRI>>=NDEC; BDRI +=sr/2; BDRI /=sr; @@ -255,11 +213,12 @@ static int tda10023_set_symbolrate (struct tda10023_state* state, u32 sr) BDRX=1<<(24+NDEC); BDRX*=sr; - do_div(BDRX,SYSCLK); // BDRX/=SYSCLK; + do_div(BDRX, state->sysclk); /* BDRX/=SYSCLK; */ BDR=(s32)BDRX; } -// printk("Symbolrate %i, BDR %i BDRI %i, NDEC %i\n",sr,BDR,BDRI,NDEC); + dprintk("Symbolrate %i, BDR %i BDRI %i, NDEC %i\n", + sr, BDR, BDRI, NDEC); tda10023_writebit (state, 0x03, 0xc0, NDEC<<6); tda10023_writereg (state, 0x0a, BDR&255); tda10023_writereg (state, 0x0b, (BDR>>8)&255); @@ -272,8 +231,67 @@ static int tda10023_set_symbolrate (struct tda10023_state* state, u32 sr) static int tda10023_init (struct dvb_frontend *fe) { struct tda10023_state* state = fe->demodulator_priv; + u8 tda10023_inittab[] = { +/* reg mask val */ +/* 000 */ 0x2a, 0xff, 0x02, /* PLL3, Bypass, Power Down */ +/* 003 */ 0xff, 0x64, 0x00, /* Sleep 100ms */ +/* 006 */ 0x2a, 0xff, 0x03, /* PLL3, Bypass, Power Down */ +/* 009 */ 0xff, 0x64, 0x00, /* Sleep 100ms */ + /* PLL1 */ +/* 012 */ 0x28, 0xff, (state->pll_m-1), + /* PLL2 */ +/* 015 */ 0x29, 0xff, ((state->pll_p-1)<<6)|(state->pll_n-1), + /* GPR FSAMPLING=1 */ +/* 018 */ 0x00, 0xff, REG0_INIT_VAL, +/* 021 */ 0x2a, 0xff, 0x08, /* PLL3 PSACLK=1 */ +/* 024 */ 0xff, 0x64, 0x00, /* Sleep 100ms */ +/* 027 */ 0x1f, 0xff, 0x00, /* RESET */ +/* 030 */ 0xff, 0x64, 0x00, /* Sleep 100ms */ +/* 033 */ 0xe6, 0x0c, 0x04, /* RSCFG_IND */ +/* 036 */ 0x10, 0xc0, 0x80, /* DECDVBCFG1 PBER=1 */ + +/* 039 */ 0x0e, 0xff, 0x82, /* GAIN1 */ +/* 042 */ 0x03, 0x08, 0x08, /* CLKCONF DYN=1 */ +/* 045 */ 0x2e, 0xbf, 0x30, /* AGCCONF2 TRIAGC=0,POSAGC=ENAGCIF=1 + PPWMTUN=0 PPWMIF=0 */ +/* 048 */ 0x01, 0xff, 0x30, /* AGCREF */ +/* 051 */ 0x1e, 0x84, 0x84, /* CONTROL SACLK_ON=1 */ +/* 054 */ 0x1b, 0xff, 0xc8, /* ADC TWOS=1 */ +/* 057 */ 0x3b, 0xff, 0xff, /* IFMAX */ +/* 060 */ 0x3c, 0xff, 0x00, /* IFMIN */ +/* 063 */ 0x34, 0xff, 0x00, /* PWMREF */ +/* 066 */ 0x35, 0xff, 0xff, /* TUNMAX */ +/* 069 */ 0x36, 0xff, 0x00, /* TUNMIN */ +/* 072 */ 0x06, 0xff, 0x7f, /* EQCONF1 POSI=7 ENADAPT=ENEQUAL=DFE=1 */ +/* 075 */ 0x1c, 0x30, 0x30, /* EQCONF2 STEPALGO=SGNALGO=1 */ +/* 078 */ 0x37, 0xff, 0xf6, /* DELTAF_LSB */ +/* 081 */ 0x38, 0xff, 0xff, /* DELTAF_MSB */ +/* 084 */ 0x02, 0xff, 0x93, /* AGCCONF1 IFS=1 KAGCIF=2 KAGCTUN=3 */ +/* 087 */ 0x2d, 0xff, 0xf6, /* SWEEP SWPOS=1 SWDYN=7 SWSTEP=1 SWLEN=2 */ +/* 090 */ 0x04, 0x10, 0x00, /* SWRAMP=1 */ +/* 093 */ 0x12, 0xff, TDA10023_OUTPUT_MODE_PARALLEL_B, /* + INTP1 POCLKP=1 FEL=1 MFS=0 */ +/* 096 */ 0x2b, 0x01, 0xa1, /* INTS1 */ +/* 099 */ 0x20, 0xff, 0x04, /* INTP2 SWAPP=? MSBFIRSTP=? INTPSEL=? */ +/* 102 */ 0x2c, 0xff, 0x0d, /* INTP/S TRIP=0 TRIS=0 */ +/* 105 */ 0xc4, 0xff, 0x00, +/* 108 */ 0xc3, 0x30, 0x00, +/* 111 */ 0xb5, 0xff, 0x19, /* ERAGC_THD */ +/* 114 */ 0x00, 0x03, 0x01, /* GPR, CLBS soft reset */ +/* 117 */ 0x00, 0x03, 0x03, /* GPR, CLBS soft reset */ +/* 120 */ 0xff, 0x64, 0x00, /* Sleep 100ms */ +/* 123 */ 0xff, 0xff, 0xff +}; + dprintk("DVB: TDA10023(%d): init chip\n", fe->dvb->num); + + /* override default values if set in config */ + if (state->config->deltaf) { + tda10023_inittab[80] = (state->config->deltaf & 0xff); + tda10023_inittab[83] = (state->config->deltaf >> 8); + } - dprintk("DVB: TDA10023(%d): init chip\n", fe->adapter->num); + if (state->config->output_mode) + tda10023_inittab[95] = state->config->output_mode; tda10023_writetab(state, tda10023_inittab); @@ -460,12 +478,11 @@ static void tda10023_release(struct dvb_frontend* fe) static struct dvb_frontend_ops tda10023_ops; -struct dvb_frontend* tda10023_attach(const struct tda1002x_config* config, - struct i2c_adapter* i2c, +struct dvb_frontend *tda10023_attach(const struct tda10023_config *config, + struct i2c_adapter *i2c, u8 pwm) { struct tda10023_state* state = NULL; - int i; /* allocate memory for the internal state */ state = kzalloc(sizeof(struct tda10023_state), GFP_KERNEL); @@ -474,22 +491,40 @@ struct dvb_frontend* tda10023_attach(const struct tda1002x_config* config, /* setup the state */ state->config = config; state->i2c = i2c; - memcpy(&state->frontend.ops, &tda10023_ops, sizeof(struct dvb_frontend_ops)); - state->pwm = pwm; - for (i=0; i < ARRAY_SIZE(tda10023_inittab);i+=3) { - if (tda10023_inittab[i] == 0x00) { - state->reg0 = tda10023_inittab[i+2]; - break; - } - } - // Wakeup if in standby + /* wakeup if in standby */ tda10023_writereg (state, 0x00, 0x33); /* check if the demod is there */ if ((tda10023_readreg(state, 0x1a) & 0xf0) != 0x70) goto error; /* create dvb_frontend */ memcpy(&state->frontend.ops, &tda10023_ops, sizeof(struct dvb_frontend_ops)); + state->pwm = pwm; + state->reg0 = REG0_INIT_VAL; + if (state->config->xtal) { + state->xtal = state->config->xtal; + state->pll_m = state->config->pll_m; + state->pll_p = state->config->pll_p; + state->pll_n = state->config->pll_n; + } else { + /* set default values if not defined in config */ + state->xtal = 28920000; + state->pll_m = 8; + state->pll_p = 4; + state->pll_n = 1; + } + + /* calc sysclk */ + state->sysclk = (state->xtal * state->pll_m / \ + (state->pll_n * state->pll_p)); + + state->frontend.ops.info.symbol_rate_min = (state->sysclk/2)/64; + state->frontend.ops.info.symbol_rate_max = (state->sysclk/2)/4; + + dprintk("DVB: TDA10023 %s: xtal:%d pll_m:%d pll_p:%d pll_n:%d\n", + __func__, state->xtal, state->pll_m, state->pll_p, + state->pll_n); + state->frontend.demodulator_priv = state; return &state->frontend; @@ -504,10 +539,10 @@ static struct dvb_frontend_ops tda10023_ops = { .name = "Philips TDA10023 DVB-C", .type = FE_QAM, .frequency_stepsize = 62500, - .frequency_min = 47000000, + .frequency_min = 47000000, .frequency_max = 862000000, - .symbol_rate_min = (SYSCLK/2)/64, /* SACLK/64 == (SYSCLK/2)/64 */ - .symbol_rate_max = (SYSCLK/2)/4, /* SACLK/4 */ + .symbol_rate_min = 0, /* set in tda10023_attach */ + .symbol_rate_max = 0, /* set in tda10023_attach */ .caps = 0x400 | //FE_CAN_QAM_4 FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 | FE_CAN_QAM_128 | FE_CAN_QAM_256 | |