From 46f73f936665ab26c8501634e6aa34464fcc1521 Mon Sep 17 00:00:00 2001 From: Olivier DANET Date: Tue, 8 Aug 2006 15:48:10 -0300 Subject: [PATCH] V4L/DVB: Update for MT2060 to use dvb_tuner_ops new tuner api minor fixes for tuning Signed-off-by: Olivier DANET Signed-off-by: Patrick Boettcher Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-usb/dibusb-common.c | 87 +--------- drivers/media/dvb/dvb-usb/dibusb.h | 1 - drivers/media/dvb/frontends/mt2060.c | 190 ++++++++++++++-------- drivers/media/dvb/frontends/mt2060.h | 15 +- drivers/media/dvb/frontends/mt2060_priv.h | 10 ++ 5 files changed, 140 insertions(+), 163 deletions(-) diff --git a/drivers/media/dvb/dvb-usb/dibusb-common.c b/drivers/media/dvb/dvb-usb/dibusb-common.c index a32ff63d170b..78a604dfadfc 100644 --- a/drivers/media/dvb/dvb-usb/dibusb-common.c +++ b/drivers/media/dvb/dvb-usb/dibusb-common.c @@ -168,40 +168,6 @@ int dibusb_read_eeprom_byte(struct dvb_usb_device *d, u8 offs, u8 *val) } EXPORT_SYMBOL(dibusb_read_eeprom_byte); -static struct mt2060_config stk3000p_mt2060_config = { - .i2c_address = 0x60, -}; - -static int dibusb_tuner_init(struct dvb_frontend *fe) -{ - struct dvb_usb_device *d = fe->dvb->priv; - struct dibusb_state *st = d->priv; - - if (d->tuner_pass_ctrl && st->mt2060_present) { - int ret; - d->tuner_pass_ctrl(d->fe, 1, stk3000p_mt2060_config.i2c_address); - ret = mt2060_init(&st->mt2060); - d->tuner_pass_ctrl(d->fe, 0, 0); - return ret; - } - return dvb_usb_pll_init_i2c(fe); -} - -static int dibusb_tuner_set(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep) -{ - struct dvb_usb_device *d = fe->dvb->priv; - struct dibusb_state *st = d->priv; - - if (d->tuner_pass_ctrl && st->mt2060_present) { - int ret; - d->tuner_pass_ctrl(d->fe, 1, stk3000p_mt2060_config.i2c_address); - ret = mt2060_set(&st->mt2060,fep); - d->tuner_pass_ctrl(d->fe,0,0); - return ret; - } - return dvb_usb_pll_set_i2c(fe,fep); -} - static const struct dib3000p_agc_config dib3000p_agc_panasonic_env57h1xd5 = { { 0x51, 0x301d, 0x0, 0x1cc7, 0xdc29, 0x570a, 0xbae1, 0x8ccd, 0x3b6d, 0x551d, 0xa, 0x951e } @@ -212,64 +178,21 @@ static const struct dib3000p_agc_config dib3000p_agc_microtune_mt2060 = { 0xa8f6, 0x5eb8, 0x65ff, 0x40ff, 0x8a, 0x1114 } }; +static struct mt2060_config stk3000p_mt2060_config = { + .i2c_address = 0x60, +}; + int dibusb_dib3000mc_frontend_attach(struct dvb_usb_device *d) { struct dib3000_config demod_cfg; struct dibusb_state *st = d->priv; - - demod_cfg.agc = &dib3000p_agc_panasonic_env57h1xd5; - demod_cfg.pll_set = dibusb_tuner_set; - demod_cfg.pll_init = dibusb_tuner_init; - - for (demod_cfg.demod_address = 0x8; demod_cfg.demod_address < 0xd; demod_cfg.demod_address++) - if ((d->fe = dib3000mc_attach(&demod_cfg,&d->i2c_adap,&st->ops)) != NULL) { - d->tuner_pass_ctrl = st->ops.tuner_pass_ctrl; - return 0; - } - return -ENODEV; } EXPORT_SYMBOL(dibusb_dib3000mc_frontend_attach); int dibusb_dib3000mc_tuner_attach (struct dvb_usb_device *d) { - int ret; - u8 a,b; - u16 if1 = 1220; - - if (d->tuner_pass_ctrl) { - struct dibusb_state *st = d->priv; - d->tuner_pass_ctrl(d->fe, 1, stk3000p_mt2060_config.i2c_address); - // First IF calibration for Liteon Sticks - if (d->udev->descriptor.idVendor == USB_VID_LITEON && - d->udev->descriptor.idProduct == USB_PID_LITEON_DVB_T_WARM) { - - dibusb_read_eeprom_byte(d,0x7E,&a); - dibusb_read_eeprom_byte(d,0x7F,&b); - - if (a == 0xFF && b == 0xFF) - if1 = 1220; - else if (a == 0x00) - if1 = 1220+b; - else if (a == 0x80) - if1 = 1220-b; - else { - warn("LITE-ON DVB-T Tuner : Strange IF1 calibration :%2X %2X\n",(int)a,(int)b); - if1 = 1220; - } - } - if ((ret = mt2060_attach(&st->mt2060,&stk3000p_mt2060_config, &d->i2c_adap,if1)) != 0) { - /* not found - use panasonic pll parameters */ - d->pll_addr = 0x60; - d->pll_desc = &dvb_pll_env57h1xd5; - } else { - st->mt2060_present = 1; - /* set the correct agc parameters for the dib3000p */ - dib3000mc_set_agc_config(d->fe, &dib3000p_agc_microtune_mt2060); - } - d->tuner_pass_ctrl(d->fe,0,0); - } - return 0; + return -ENODEV; } EXPORT_SYMBOL(dibusb_dib3000mc_tuner_attach); diff --git a/drivers/media/dvb/dvb-usb/dibusb.h b/drivers/media/dvb/dvb-usb/dibusb.h index 7fd57d053b9f..e21de8b668f6 100644 --- a/drivers/media/dvb/dvb-usb/dibusb.h +++ b/drivers/media/dvb/dvb-usb/dibusb.h @@ -97,7 +97,6 @@ struct dibusb_state { struct dib_fe_xfer_ops ops; - struct mt2060_state mt2060; int mt2060_present; /* for RC5 remote control */ diff --git a/drivers/media/dvb/frontends/mt2060.c b/drivers/media/dvb/frontends/mt2060.c index 14b4f588eeb7..cc38e7077a0b 100644 --- a/drivers/media/dvb/frontends/mt2060.c +++ b/drivers/media/dvb/frontends/mt2060.c @@ -19,14 +19,16 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.= */ -/* See mt2060_priv.h for details */ - /* In that file, frequencies are expressed in kiloHertz to avoid 32 bits overflows */ #include #include #include #include +#include + +#include "dvb_frontend.h" + #include "mt2060.h" #include "mt2060_priv.h" @@ -34,17 +36,17 @@ static int debug=0; module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); -#define dprintk(args...) do { if (debug) { printk(KERN_DEBUG "MT2060: " args); printk("\n"); } } while (0) +#define dprintk(args...) do { if (debug) {printk(KERN_DEBUG "MT2060: " args); printk("\n"); }} while (0) // Reads a single register -static int mt2060_readreg(struct mt2060_state *state, u8 reg, u8 *val) +static int mt2060_readreg(struct mt2060_priv *priv, u8 reg, u8 *val) { struct i2c_msg msg[2] = { - { .addr = state->config->i2c_address, .flags = 0, .buf = ®, .len = 1 }, - { .addr = state->config->i2c_address, .flags = I2C_M_RD, .buf = val, .len = 1 }, + { .addr = priv->cfg->i2c_address, .flags = 0, .buf = ®, .len = 1 }, + { .addr = priv->cfg->i2c_address, .flags = I2C_M_RD, .buf = val, .len = 1 }, }; - if (i2c_transfer(state->i2c, msg, 2) != 2) { + if (i2c_transfer(priv->i2c, msg, 2) != 2) { printk(KERN_WARNING "mt2060 I2C read failed\n"); return -EREMOTEIO; } @@ -52,16 +54,14 @@ static int mt2060_readreg(struct mt2060_state *state, u8 reg, u8 *val) } // Writes a single register -static int mt2060_writereg(struct mt2060_state *state, u8 reg, u8 val) +static int mt2060_writereg(struct mt2060_priv *priv, u8 reg, u8 val) { - u8 buf[2]; + u8 buf[2] = { reg, val }; struct i2c_msg msg = { - .addr = state->config->i2c_address, .flags = 0, .buf = buf, .len = 2 + .addr = priv->cfg->i2c_address, .flags = 0, .buf = buf, .len = 2 }; - buf[0]=reg; - buf[1]=val; - if (i2c_transfer(state->i2c, &msg, 1) != 1) { + if (i2c_transfer(priv->i2c, &msg, 1) != 1) { printk(KERN_WARNING "mt2060 I2C write failed\n"); return -EREMOTEIO; } @@ -69,12 +69,12 @@ static int mt2060_writereg(struct mt2060_state *state, u8 reg, u8 val) } // Writes a set of consecutive registers -static int mt2060_writeregs(struct mt2060_state *state,u8 *buf, u8 len) +static int mt2060_writeregs(struct mt2060_priv *priv,u8 *buf, u8 len) { struct i2c_msg msg = { - .addr = state->config->i2c_address, .flags = 0, .buf = buf, .len = len + .addr = priv->cfg->i2c_address, .flags = 0, .buf = buf, .len = len }; - if (i2c_transfer(state->i2c, &msg, 1) != 1) { + if (i2c_transfer(priv->i2c, &msg, 1) != 1) { printk(KERN_WARNING "mt2060 I2C write failed (len=%i)\n",(int)len); return -EREMOTEIO; } @@ -95,20 +95,6 @@ static u8 mt2060_config2[] = { }; // VGAG=3, V1CSE=1 -static u8 mt2060_config3[] = { - REG_VGAG, - 0x33 -}; - -int mt2060_init(struct mt2060_state *state) -{ - if (mt2060_writeregs(state,mt2060_config1,sizeof(mt2060_config1))) - return -EREMOTEIO; - if (mt2060_writeregs(state,mt2060_config3,sizeof(mt2060_config3))) - return -EREMOTEIO; - return 0; -} -EXPORT_SYMBOL(mt2060_init); #ifdef MT2060_SPURCHECK /* The function below calculates the frequency offset between the output frequency if2 @@ -167,8 +153,9 @@ static int mt2060_spurcheck(u32 lo1,u32 lo2,u32 if2) #define IF2 36150 // IF2 frequency = 36.150 MHz #define FREF 16000 // Quartz oscillator 16 MHz -int mt2060_set(struct mt2060_state *state, struct dvb_frontend_parameters *fep) +static int mt2060_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params) { + struct mt2060_priv *priv; int ret=0; int i=0; u32 freq; @@ -178,17 +165,23 @@ int mt2060_set(struct mt2060_state *state, struct dvb_frontend_parameters *fep) u8 b[8]; u32 if1; - if1 = state->if1_freq; + priv = fe->tuner_priv; + + if1 = priv->if1_freq; b[0] = REG_LO1B1; b[1] = 0xFF; - mt2060_writeregs(state,b,2); - freq = fep->frequency / 1000; // Hz -> kHz + mt2060_writeregs(priv,b,2); - f_lo1 = freq + if1 * 1000; - f_lo1 = (f_lo1/250)*250; - f_lo2 = f_lo1 - freq - IF2; - f_lo2 = (f_lo2/50)*50; + freq = params->frequency / 1000; // Hz -> kHz + priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0; + + f_lo1 = freq + if1 * 1000; + f_lo1 = (f_lo1 / 250) * 250; + f_lo2 = f_lo1 - freq - IF2; + // From the Comtech datasheet, the step used is 50kHz. The tuner chip could be more precise + f_lo2 = ((f_lo2 + 25) / 50) * 50; + priv->frequency = (f_lo1 - f_lo2 - IF2) * 1000, #ifdef MT2060_SPURCHECK // LO-related spurs detection and correction @@ -197,12 +190,14 @@ int mt2060_set(struct mt2060_state *state, struct dvb_frontend_parameters *fep) f_lo2 += num1; #endif //Frequency LO1 = 16MHz * (DIV1 + NUM1/64 ) - div1 = f_lo1 / FREF; - num1 = (64 * (f_lo1 % FREF) )/FREF; + num1 = f_lo1 / (FREF / 64); + div1 = num1 / 64; + num1 &= 0x3f; // Frequency LO2 = 16MHz * (DIV2 + NUM2/8192 ) - div2 = f_lo2 / FREF; - num2 = (16384 * (f_lo2 % FREF) /FREF +1)/2; + num2 = f_lo2 * 64 / (FREF / 128); + div2 = num2 / 8192; + num2 &= 0x1fff; if (freq <= 95000) lnaband = 0xB0; else if (freq <= 180000) lnaband = 0xA0; else @@ -223,85 +218,144 @@ int mt2060_set(struct mt2060_state *state, struct dvb_frontend_parameters *fep) b[5] = ((num2 >>12) & 1) | (div2 << 1); dprintk("IF1: %dMHz",(int)if1); - dprintk("PLL freq: %d f_lo1: %d f_lo2: %d (kHz)",(int)freq,(int)f_lo1,(int)f_lo2); - dprintk("PLL div1: %d num1: %d div2: %d num2: %d",(int)div1,(int)num1,(int)div2,(int)num2); + dprintk("PLL freq=%dkHz f_lo1=%dkHz f_lo2=%dkHz",(int)freq,(int)f_lo1,(int)f_lo2); + dprintk("PLL div1=%d num1=%d div2=%d num2=%d",(int)div1,(int)num1,(int)div2,(int)num2); dprintk("PLL [1..5]: %2x %2x %2x %2x %2x",(int)b[1],(int)b[2],(int)b[3],(int)b[4],(int)b[5]); - mt2060_writeregs(state,b,6); + mt2060_writeregs(priv,b,6); //Waits for pll lock or timeout - i=0; + i = 0; do { - mt2060_readreg(state,REG_LO_STATUS,b); - if ((b[0] & 0x88)==0x88) break; + mt2060_readreg(priv,REG_LO_STATUS,b); + if ((b[0] & 0x88)==0x88) + break; msleep(4); i++; } while (i<10); return ret; } -EXPORT_SYMBOL(mt2060_set); -/* from usbsnoop.log */ -static void mt2060_calibrate(struct mt2060_state *state) +static void mt2060_calibrate(struct mt2060_priv *priv) { u8 b = 0; int i = 0; - if (mt2060_writeregs(state,mt2060_config1,sizeof(mt2060_config1))) + if (mt2060_writeregs(priv,mt2060_config1,sizeof(mt2060_config1))) return; - if (mt2060_writeregs(state,mt2060_config2,sizeof(mt2060_config2))) + if (mt2060_writeregs(priv,mt2060_config2,sizeof(mt2060_config2))) return; do { b |= (1 << 6); // FM1SS; - mt2060_writereg(state, REG_LO2C1,b); + mt2060_writereg(priv, REG_LO2C1,b); msleep(20); if (i == 0) { b |= (1 << 7); // FM1CA; - mt2060_writereg(state, REG_LO2C1,b); + mt2060_writereg(priv, REG_LO2C1,b); b &= ~(1 << 7); // FM1CA; msleep(20); } b &= ~(1 << 6); // FM1SS - mt2060_writereg(state, REG_LO2C1,b); + mt2060_writereg(priv, REG_LO2C1,b); msleep(20); i++; } while (i < 9); i = 0; - while (i++ < 10 && mt2060_readreg(state, REG_MISC_STAT, &b) == 0 && (b & (1 << 6)) == 0) + while (i++ < 10 && mt2060_readreg(priv, REG_MISC_STAT, &b) == 0 && (b & (1 << 6)) == 0) msleep(20); if (i < 10) { - mt2060_readreg(state, REG_FM_FREQ, &state->fmfreq); // now find out, what is fmreq used for :) - dprintk("calibration was successful: %d", state->fmfreq); + mt2060_readreg(priv, REG_FM_FREQ, &priv->fmfreq); // now find out, what is fmreq used for :) + dprintk("calibration was successful: %d", (int)priv->fmfreq); } else dprintk("FMCAL timed out"); } +static int mt2060_calc_regs(struct dvb_frontend *fe, struct dvb_frontend_parameters *params, u8 *buf, int buf_len) +{ + return -ENODEV; +} + +static int mt2060_get_frequency(struct dvb_frontend *fe, u32 *frequency) +{ + struct mt2060_priv *priv = fe->tuner_priv; + *frequency = priv->frequency; + return 0; +} + +static int mt2060_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) +{ + struct mt2060_priv *priv = fe->tuner_priv; + *bandwidth = priv->bandwidth; + return 0; +} + +static int mt2060_sleep(struct dvb_frontend *fe) +{ + struct mt2060_priv *priv = fe->tuner_priv; + return mt2060_writereg(priv, REG_VGAG,0x30); +} + +static int mt2060_release(struct dvb_frontend *fe) +{ + kfree(fe->tuner_priv); + fe->tuner_priv = NULL; + return 0; +} + +static const struct dvb_tuner_ops mt2060_tuner_ops = { + .info = { + .name = "Microtune MT2060", + .frequency_min = 48000000, + .frequency_max = 860000000, + .frequency_step = 50000, + }, + + .release = mt2060_release, + + .sleep = mt2060_sleep, + + .set_params = mt2060_set_params, + .calc_regs = mt2060_calc_regs, + .get_frequency = mt2060_get_frequency, + .get_bandwidth = mt2060_get_bandwidth +}; + /* This functions tries to identify a MT2060 tuner by reading the PART/REV register. This is hasty. */ -int mt2060_attach(struct mt2060_state *state, struct mt2060_config *config, struct i2c_adapter *i2c,u16 if1) +int mt2060_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct mt2060_config *cfg, u16 if1) { + struct mt2060_priv *priv = NULL; u8 id = 0; - memset(state,0,sizeof(struct mt2060_state)); - state->config = config; - state->i2c = i2c; - state->if1_freq = if1; + priv = kzalloc(sizeof(struct mt2060_priv), GFP_KERNEL); + if (priv == NULL) + return -ENOMEM; - if (mt2060_readreg(state,REG_PART_REV,&id) != 0) - return -ENODEV; + priv->cfg = cfg; + priv->i2c = i2c; + priv->if1_freq = if1; - if (id != PART_REV) + if (mt2060_readreg(priv,REG_PART_REV,&id) != 0) { + kfree(priv); return -ENODEV; + } + if (id != PART_REV) { + kfree(priv); + return -ENODEV; + } printk(KERN_INFO "MT2060: successfully identified\n"); + memcpy(&fe->ops.tuner_ops, &mt2060_tuner_ops, sizeof(struct dvb_tuner_ops)); + + fe->tuner_priv = priv; - mt2060_calibrate(state); + mt2060_calibrate(priv); return 0; } diff --git a/drivers/media/dvb/frontends/mt2060.h b/drivers/media/dvb/frontends/mt2060.h index d5dae102f96f..c58b03e82345 100644 --- a/drivers/media/dvb/frontends/mt2060.h +++ b/drivers/media/dvb/frontends/mt2060.h @@ -22,23 +22,14 @@ #ifndef MT2060_H #define MT2060_H -#include -#include +struct dvb_frontend; +struct i2c_adapter; struct mt2060_config { u8 i2c_address; /* Shall we add settings for the discrete outputs ? */ }; -struct mt2060_state { - struct mt2060_config *config; - struct i2c_adapter *i2c; - u16 if1_freq; - u8 fmfreq; -}; - -extern int mt2060_init(struct mt2060_state *state); -extern int mt2060_set(struct mt2060_state *state, struct dvb_frontend_parameters *fep); -extern int mt2060_attach(struct mt2060_state *state, struct mt2060_config *config, struct i2c_adapter *i2c,u16 if1); +extern int mt2060_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct mt2060_config *cfg, u16 if1); #endif diff --git a/drivers/media/dvb/frontends/mt2060_priv.h b/drivers/media/dvb/frontends/mt2060_priv.h index 47e691e44b7b..5eaccdefd0b0 100644 --- a/drivers/media/dvb/frontends/mt2060_priv.h +++ b/drivers/media/dvb/frontends/mt2060_priv.h @@ -92,4 +92,14 @@ #define PART_REV 0x63 // The current driver works only with PART=6 and REV=3 chips +struct mt2060_priv { + struct mt2060_config *cfg; + struct i2c_adapter *i2c; + + u32 frequency; + u32 bandwidth; + u16 if1_freq; + u8 fmfreq; +}; + #endif -- 2.20.1