diff options
author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-06-14 21:35:59 +0200 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-14 04:40:28 +0200 |
commit | ccae7af2bf07dfef69cc2eb6ebc9e1ff15addfbd (patch) | |
tree | f33391cf2efe9038c13b88ca4049317728a7ebf0 /drivers/media/common/tuners/fc0011.c | |
parent | [media] b2c2: break it into common/pci/usb directories (diff) | |
download | linux-ccae7af2bf07dfef69cc2eb6ebc9e1ff15addfbd.tar.xz linux-ccae7af2bf07dfef69cc2eb6ebc9e1ff15addfbd.zip |
[media] common: move media/common/tuners to media/tuners
Move the tuners one level up, as the "common" directory will be used
by drivers that are shared between more than one driver.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/common/tuners/fc0011.c')
-rw-r--r-- | drivers/media/common/tuners/fc0011.c | 524 |
1 files changed, 0 insertions, 524 deletions
diff --git a/drivers/media/common/tuners/fc0011.c b/drivers/media/common/tuners/fc0011.c deleted file mode 100644 index e4882546c283..000000000000 --- a/drivers/media/common/tuners/fc0011.c +++ /dev/null @@ -1,524 +0,0 @@ -/* - * Fitipower FC0011 tuner driver - * - * Copyright (C) 2012 Michael Buesch <m@bues.ch> - * - * Derived from FC0012 tuner driver: - * Copyright (C) 2012 Hans-Frieder Vogt <hfvogt@gmx.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include "fc0011.h" - - -/* Tuner registers */ -enum { - FC11_REG_0, - FC11_REG_FA, /* FA */ - FC11_REG_FP, /* FP */ - FC11_REG_XINHI, /* XIN high 8 bit */ - FC11_REG_XINLO, /* XIN low 8 bit */ - FC11_REG_VCO, /* VCO */ - FC11_REG_VCOSEL, /* VCO select */ - FC11_REG_7, /* Unknown tuner reg 7 */ - FC11_REG_8, /* Unknown tuner reg 8 */ - FC11_REG_9, - FC11_REG_10, /* Unknown tuner reg 10 */ - FC11_REG_11, /* Unknown tuner reg 11 */ - FC11_REG_12, - FC11_REG_RCCAL, /* RC calibrate */ - FC11_REG_VCOCAL, /* VCO calibrate */ - FC11_REG_15, - FC11_REG_16, /* Unknown tuner reg 16 */ - FC11_REG_17, - - FC11_NR_REGS, /* Number of registers */ -}; - -enum FC11_REG_VCOSEL_bits { - FC11_VCOSEL_2 = 0x08, /* VCO select 2 */ - FC11_VCOSEL_1 = 0x10, /* VCO select 1 */ - FC11_VCOSEL_CLKOUT = 0x20, /* Fix clock out */ - FC11_VCOSEL_BW7M = 0x40, /* 7MHz bw */ - FC11_VCOSEL_BW6M = 0x80, /* 6MHz bw */ -}; - -enum FC11_REG_RCCAL_bits { - FC11_RCCAL_FORCE = 0x10, /* force */ -}; - -enum FC11_REG_VCOCAL_bits { - FC11_VCOCAL_RUN = 0, /* VCO calibration run */ - FC11_VCOCAL_VALUEMASK = 0x3F, /* VCO calibration value mask */ - FC11_VCOCAL_OK = 0x40, /* VCO calibration Ok */ - FC11_VCOCAL_RESET = 0x80, /* VCO calibration reset */ -}; - - -struct fc0011_priv { - struct i2c_adapter *i2c; - u8 addr; - - u32 frequency; - u32 bandwidth; -}; - - -static int fc0011_writereg(struct fc0011_priv *priv, u8 reg, u8 val) -{ - u8 buf[2] = { reg, val }; - struct i2c_msg msg = { .addr = priv->addr, - .flags = 0, .buf = buf, .len = 2 }; - - if (i2c_transfer(priv->i2c, &msg, 1) != 1) { - dev_err(&priv->i2c->dev, - "I2C write reg failed, reg: %02x, val: %02x\n", - reg, val); - return -EIO; - } - - return 0; -} - -static int fc0011_readreg(struct fc0011_priv *priv, u8 reg, u8 *val) -{ - u8 dummy; - struct i2c_msg msg[2] = { - { .addr = priv->addr, - .flags = 0, .buf = ®, .len = 1 }, - { .addr = priv->addr, - .flags = I2C_M_RD, .buf = val ? : &dummy, .len = 1 }, - }; - - if (i2c_transfer(priv->i2c, msg, 2) != 2) { - dev_err(&priv->i2c->dev, - "I2C read failed, reg: %02x\n", reg); - return -EIO; - } - - return 0; -} - -static int fc0011_release(struct dvb_frontend *fe) -{ - kfree(fe->tuner_priv); - fe->tuner_priv = NULL; - - return 0; -} - -static int fc0011_init(struct dvb_frontend *fe) -{ - struct fc0011_priv *priv = fe->tuner_priv; - int err; - - if (WARN_ON(!fe->callback)) - return -EINVAL; - - err = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER, - FC0011_FE_CALLBACK_POWER, priv->addr); - if (err) { - dev_err(&priv->i2c->dev, "Power-on callback failed\n"); - return err; - } - err = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER, - FC0011_FE_CALLBACK_RESET, priv->addr); - if (err) { - dev_err(&priv->i2c->dev, "Reset callback failed\n"); - return err; - } - - return 0; -} - -/* Initiate VCO calibration */ -static int fc0011_vcocal_trigger(struct fc0011_priv *priv) -{ - int err; - - err = fc0011_writereg(priv, FC11_REG_VCOCAL, FC11_VCOCAL_RESET); - if (err) - return err; - err = fc0011_writereg(priv, FC11_REG_VCOCAL, FC11_VCOCAL_RUN); - if (err) - return err; - - return 0; -} - -/* Read VCO calibration value */ -static int fc0011_vcocal_read(struct fc0011_priv *priv, u8 *value) -{ - int err; - - err = fc0011_writereg(priv, FC11_REG_VCOCAL, FC11_VCOCAL_RUN); - if (err) - return err; - usleep_range(10000, 20000); - err = fc0011_readreg(priv, FC11_REG_VCOCAL, value); - if (err) - return err; - - return 0; -} - -static int fc0011_set_params(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *p = &fe->dtv_property_cache; - struct fc0011_priv *priv = fe->tuner_priv; - int err; - unsigned int i, vco_retries; - u32 freq = p->frequency / 1000; - u32 bandwidth = p->bandwidth_hz / 1000; - u32 fvco, xin, xdiv, xdivr; - u16 frac; - u8 fa, fp, vco_sel, vco_cal; - u8 regs[FC11_NR_REGS] = { }; - - regs[FC11_REG_7] = 0x0F; - regs[FC11_REG_8] = 0x3E; - regs[FC11_REG_10] = 0xB8; - regs[FC11_REG_11] = 0x80; - regs[FC11_REG_RCCAL] = 0x04; - err = fc0011_writereg(priv, FC11_REG_7, regs[FC11_REG_7]); - err |= fc0011_writereg(priv, FC11_REG_8, regs[FC11_REG_8]); - err |= fc0011_writereg(priv, FC11_REG_10, regs[FC11_REG_10]); - err |= fc0011_writereg(priv, FC11_REG_11, regs[FC11_REG_11]); - err |= fc0011_writereg(priv, FC11_REG_RCCAL, regs[FC11_REG_RCCAL]); - if (err) - return -EIO; - - /* Set VCO freq and VCO div */ - if (freq < 54000) { - fvco = freq * 64; - regs[FC11_REG_VCO] = 0x82; - } else if (freq < 108000) { - fvco = freq * 32; - regs[FC11_REG_VCO] = 0x42; - } else if (freq < 216000) { - fvco = freq * 16; - regs[FC11_REG_VCO] = 0x22; - } else if (freq < 432000) { - fvco = freq * 8; - regs[FC11_REG_VCO] = 0x12; - } else { - fvco = freq * 4; - regs[FC11_REG_VCO] = 0x0A; - } - - /* Calc XIN. The PLL reference frequency is 18 MHz. */ - xdiv = fvco / 18000; - frac = fvco - xdiv * 18000; - frac = (frac << 15) / 18000; - if (frac >= 16384) - frac += 32786; - if (!frac) - xin = 0; - else if (frac < 511) - xin = 512; - else if (frac < 65026) - xin = frac; - else - xin = 65024; - regs[FC11_REG_XINHI] = xin >> 8; - regs[FC11_REG_XINLO] = xin; - - /* Calc FP and FA */ - xdivr = xdiv; - if (fvco - xdiv * 18000 >= 9000) - xdivr += 1; /* round */ - fp = xdivr / 8; - fa = xdivr - fp * 8; - if (fa < 2) { - fp -= 1; - fa += 8; - } - if (fp > 0x1F) { - fp &= 0x1F; - fa &= 0xF; - } - if (fa >= fp) { - dev_warn(&priv->i2c->dev, - "fa %02X >= fp %02X, but trying to continue\n", - (unsigned int)(u8)fa, (unsigned int)(u8)fp); - } - regs[FC11_REG_FA] = fa; - regs[FC11_REG_FP] = fp; - - /* Select bandwidth */ - switch (bandwidth) { - case 8000: - break; - case 7000: - regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_BW7M; - break; - default: - dev_warn(&priv->i2c->dev, "Unsupported bandwidth %u kHz. " - "Using 6000 kHz.\n", - bandwidth); - bandwidth = 6000; - /* fallthrough */ - case 6000: - regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_BW6M; - break; - } - - /* Pre VCO select */ - if (fvco < 2320000) { - vco_sel = 0; - regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); - } else if (fvco < 3080000) { - vco_sel = 1; - regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); - regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_1; - } else { - vco_sel = 2; - regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); - regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_2; - } - - /* Fix for low freqs */ - if (freq < 45000) { - regs[FC11_REG_FA] = 0x6; - regs[FC11_REG_FP] = 0x11; - } - - /* Clock out fix */ - regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_CLKOUT; - - /* Write the cached registers */ - for (i = FC11_REG_FA; i <= FC11_REG_VCOSEL; i++) { - err = fc0011_writereg(priv, i, regs[i]); - if (err) - return err; - } - - /* VCO calibration */ - err = fc0011_vcocal_trigger(priv); - if (err) - return err; - err = fc0011_vcocal_read(priv, &vco_cal); - if (err) - return err; - vco_retries = 0; - while (!(vco_cal & FC11_VCOCAL_OK) && vco_retries < 3) { - /* Reset the tuner and try again */ - err = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER, - FC0011_FE_CALLBACK_RESET, priv->addr); - if (err) { - dev_err(&priv->i2c->dev, "Failed to reset tuner\n"); - return err; - } - /* Reinit tuner config */ - err = 0; - for (i = FC11_REG_FA; i <= FC11_REG_VCOSEL; i++) - err |= fc0011_writereg(priv, i, regs[i]); - err |= fc0011_writereg(priv, FC11_REG_7, regs[FC11_REG_7]); - err |= fc0011_writereg(priv, FC11_REG_8, regs[FC11_REG_8]); - err |= fc0011_writereg(priv, FC11_REG_10, regs[FC11_REG_10]); - err |= fc0011_writereg(priv, FC11_REG_11, regs[FC11_REG_11]); - err |= fc0011_writereg(priv, FC11_REG_RCCAL, regs[FC11_REG_RCCAL]); - if (err) - return -EIO; - /* VCO calibration */ - err = fc0011_vcocal_trigger(priv); - if (err) - return err; - err = fc0011_vcocal_read(priv, &vco_cal); - if (err) - return err; - vco_retries++; - } - if (!(vco_cal & FC11_VCOCAL_OK)) { - dev_err(&priv->i2c->dev, - "Failed to read VCO calibration value (got %02X)\n", - (unsigned int)vco_cal); - return -EIO; - } - vco_cal &= FC11_VCOCAL_VALUEMASK; - - switch (vco_sel) { - case 0: - if (vco_cal < 8) { - regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); - regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_1; - err = fc0011_writereg(priv, FC11_REG_VCOSEL, - regs[FC11_REG_VCOSEL]); - if (err) - return err; - err = fc0011_vcocal_trigger(priv); - if (err) - return err; - } else { - regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); - err = fc0011_writereg(priv, FC11_REG_VCOSEL, - regs[FC11_REG_VCOSEL]); - if (err) - return err; - } - break; - case 1: - if (vco_cal < 5) { - regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); - regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_2; - err = fc0011_writereg(priv, FC11_REG_VCOSEL, - regs[FC11_REG_VCOSEL]); - if (err) - return err; - err = fc0011_vcocal_trigger(priv); - if (err) - return err; - } else if (vco_cal <= 48) { - regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); - regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_1; - err = fc0011_writereg(priv, FC11_REG_VCOSEL, - regs[FC11_REG_VCOSEL]); - if (err) - return err; - } else { - regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); - err = fc0011_writereg(priv, FC11_REG_VCOSEL, - regs[FC11_REG_VCOSEL]); - if (err) - return err; - err = fc0011_vcocal_trigger(priv); - if (err) - return err; - } - break; - case 2: - if (vco_cal > 53) { - regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); - regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_1; - err = fc0011_writereg(priv, FC11_REG_VCOSEL, - regs[FC11_REG_VCOSEL]); - if (err) - return err; - err = fc0011_vcocal_trigger(priv); - if (err) - return err; - } else { - regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2); - regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_2; - err = fc0011_writereg(priv, FC11_REG_VCOSEL, - regs[FC11_REG_VCOSEL]); - if (err) - return err; - } - break; - } - err = fc0011_vcocal_read(priv, NULL); - if (err) - return err; - usleep_range(10000, 50000); - - err = fc0011_readreg(priv, FC11_REG_RCCAL, ®s[FC11_REG_RCCAL]); - if (err) - return err; - regs[FC11_REG_RCCAL] |= FC11_RCCAL_FORCE; - err = fc0011_writereg(priv, FC11_REG_RCCAL, regs[FC11_REG_RCCAL]); - if (err) - return err; - err = fc0011_writereg(priv, FC11_REG_16, 0xB); - if (err) - return err; - - dev_dbg(&priv->i2c->dev, "Tuned to " - "fa=%02X fp=%02X xin=%02X%02X vco=%02X vcosel=%02X " - "vcocal=%02X(%u) bw=%u\n", - (unsigned int)regs[FC11_REG_FA], - (unsigned int)regs[FC11_REG_FP], - (unsigned int)regs[FC11_REG_XINHI], - (unsigned int)regs[FC11_REG_XINLO], - (unsigned int)regs[FC11_REG_VCO], - (unsigned int)regs[FC11_REG_VCOSEL], - (unsigned int)vco_cal, vco_retries, - (unsigned int)bandwidth); - - priv->frequency = p->frequency; - priv->bandwidth = p->bandwidth_hz; - - return 0; -} - -static int fc0011_get_frequency(struct dvb_frontend *fe, u32 *frequency) -{ - struct fc0011_priv *priv = fe->tuner_priv; - - *frequency = priv->frequency; - - return 0; -} - -static int fc0011_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) -{ - *frequency = 0; - - return 0; -} - -static int fc0011_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) -{ - struct fc0011_priv *priv = fe->tuner_priv; - - *bandwidth = priv->bandwidth; - - return 0; -} - -static const struct dvb_tuner_ops fc0011_tuner_ops = { - .info = { - .name = "Fitipower FC0011", - - .frequency_min = 45000000, - .frequency_max = 1000000000, - }, - - .release = fc0011_release, - .init = fc0011_init, - - .set_params = fc0011_set_params, - - .get_frequency = fc0011_get_frequency, - .get_if_frequency = fc0011_get_if_frequency, - .get_bandwidth = fc0011_get_bandwidth, -}; - -struct dvb_frontend *fc0011_attach(struct dvb_frontend *fe, - struct i2c_adapter *i2c, - const struct fc0011_config *config) -{ - struct fc0011_priv *priv; - - priv = kzalloc(sizeof(struct fc0011_priv), GFP_KERNEL); - if (!priv) - return NULL; - - priv->i2c = i2c; - priv->addr = config->i2c_address; - - fe->tuner_priv = priv; - fe->ops.tuner_ops = fc0011_tuner_ops; - - dev_info(&priv->i2c->dev, "Fitipower FC0011 tuner attached\n"); - - return fe; -} -EXPORT_SYMBOL(fc0011_attach); - -MODULE_DESCRIPTION("Fitipower FC0011 silicon tuner driver"); -MODULE_AUTHOR("Michael Buesch <m@bues.ch>"); -MODULE_LICENSE("GPL"); |