[media] Add fc0011 tuner driver
This adds support for the Fitipower fc0011 DVB-t tuner. Signed-off-by: Michael Buesch <m@bues.ch> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Родитель
6ec12988c0
Коммит
eea977ed63
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@ -2692,6 +2692,13 @@ S: Maintained
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F: Documentation/hwmon/f71805f
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F: drivers/hwmon/f71805f.c
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FC0011 TUNER DRIVER
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M: Michael Buesch <m@bues.ch>
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L: linux-media@vger.kernel.org
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S: Maintained
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F: drivers/media/common/tuners/fc0011.h
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F: drivers/media/common/tuners/fc0011.c
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FANOTIFY
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M: Eric Paris <eparis@redhat.com>
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S: Maintained
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@ -204,6 +204,13 @@ config MEDIA_TUNER_TDA18218
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help
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NXP TDA18218 silicon tuner driver.
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config MEDIA_TUNER_FC0011
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tristate "Fitipower FC0011 silicon tuner"
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depends on VIDEO_MEDIA && I2C
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default m if MEDIA_TUNER_CUSTOMISE
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help
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Fitipower FC0011 silicon tuner driver.
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config MEDIA_TUNER_TDA18212
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tristate "NXP TDA18212 silicon tuner"
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depends on VIDEO_MEDIA && I2C
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@ -29,6 +29,7 @@ obj-$(CONFIG_MEDIA_TUNER_MAX2165) += max2165.o
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obj-$(CONFIG_MEDIA_TUNER_TDA18218) += tda18218.o
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obj-$(CONFIG_MEDIA_TUNER_TDA18212) += tda18212.o
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obj-$(CONFIG_MEDIA_TUNER_TUA9001) += tua9001.o
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obj-$(CONFIG_MEDIA_TUNER_FC0011) += fc0011.o
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ccflags-y += -I$(srctree)/drivers/media/dvb/dvb-core
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ccflags-y += -I$(srctree)/drivers/media/dvb/frontends
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@ -0,0 +1,524 @@
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/*
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* Fitipower FC0011 tuner driver
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*
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* Copyright (C) 2012 Michael Buesch <m@bues.ch>
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*
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* Derived from FC0012 tuner driver:
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* Copyright (C) 2012 Hans-Frieder Vogt <hfvogt@gmx.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "fc0011.h"
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/* Tuner registers */
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enum {
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FC11_REG_0,
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FC11_REG_FA, /* FA */
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FC11_REG_FP, /* FP */
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FC11_REG_XINHI, /* XIN high 8 bit */
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FC11_REG_XINLO, /* XIN low 8 bit */
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FC11_REG_VCO, /* VCO */
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FC11_REG_VCOSEL, /* VCO select */
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FC11_REG_7, /* Unknown tuner reg 7 */
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FC11_REG_8, /* Unknown tuner reg 8 */
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FC11_REG_9,
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FC11_REG_10, /* Unknown tuner reg 10 */
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FC11_REG_11, /* Unknown tuner reg 11 */
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FC11_REG_12,
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FC11_REG_RCCAL, /* RC calibrate */
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FC11_REG_VCOCAL, /* VCO calibrate */
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FC11_REG_15,
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FC11_REG_16, /* Unknown tuner reg 16 */
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FC11_REG_17,
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FC11_NR_REGS, /* Number of registers */
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};
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enum FC11_REG_VCOSEL_bits {
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FC11_VCOSEL_2 = 0x08, /* VCO select 2 */
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FC11_VCOSEL_1 = 0x10, /* VCO select 1 */
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FC11_VCOSEL_CLKOUT = 0x20, /* Fix clock out */
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FC11_VCOSEL_BW7M = 0x40, /* 7MHz bw */
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FC11_VCOSEL_BW6M = 0x80, /* 6MHz bw */
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};
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enum FC11_REG_RCCAL_bits {
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FC11_RCCAL_FORCE = 0x10, /* force */
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};
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enum FC11_REG_VCOCAL_bits {
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FC11_VCOCAL_RUN = 0, /* VCO calibration run */
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FC11_VCOCAL_VALUEMASK = 0x3F, /* VCO calibration value mask */
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FC11_VCOCAL_OK = 0x40, /* VCO calibration Ok */
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FC11_VCOCAL_RESET = 0x80, /* VCO calibration reset */
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};
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struct fc0011_priv {
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struct i2c_adapter *i2c;
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u8 addr;
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u32 frequency;
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u32 bandwidth;
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};
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static int fc0011_writereg(struct fc0011_priv *priv, u8 reg, u8 val)
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{
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u8 buf[2] = { reg, val };
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struct i2c_msg msg = { .addr = priv->addr,
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.flags = 0, .buf = buf, .len = 2 };
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if (i2c_transfer(priv->i2c, &msg, 1) != 1) {
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dev_err(&priv->i2c->dev,
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"I2C write reg failed, reg: %02x, val: %02x\n",
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reg, val);
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return -EIO;
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}
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return 0;
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}
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static int fc0011_readreg(struct fc0011_priv *priv, u8 reg, u8 *val)
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{
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u8 dummy;
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struct i2c_msg msg[2] = {
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{ .addr = priv->addr,
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.flags = 0, .buf = ®, .len = 1 },
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{ .addr = priv->addr,
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.flags = I2C_M_RD, .buf = val ? : &dummy, .len = 1 },
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};
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if (i2c_transfer(priv->i2c, msg, 2) != 2) {
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dev_err(&priv->i2c->dev,
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"I2C read failed, reg: %02x\n", reg);
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return -EIO;
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}
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return 0;
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}
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static int fc0011_release(struct dvb_frontend *fe)
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{
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kfree(fe->tuner_priv);
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fe->tuner_priv = NULL;
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return 0;
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}
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static int fc0011_init(struct dvb_frontend *fe)
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{
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struct fc0011_priv *priv = fe->tuner_priv;
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int err;
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if (WARN_ON(!fe->callback))
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return -EINVAL;
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err = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
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FC0011_FE_CALLBACK_POWER, priv->addr);
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if (err) {
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dev_err(&priv->i2c->dev, "Power-on callback failed\n");
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return err;
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}
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err = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
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FC0011_FE_CALLBACK_RESET, priv->addr);
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if (err) {
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dev_err(&priv->i2c->dev, "Reset callback failed\n");
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return err;
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}
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return 0;
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}
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/* Initiate VCO calibration */
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static int fc0011_vcocal_trigger(struct fc0011_priv *priv)
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{
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int err;
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err = fc0011_writereg(priv, FC11_REG_VCOCAL, FC11_VCOCAL_RESET);
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if (err)
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return err;
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err = fc0011_writereg(priv, FC11_REG_VCOCAL, FC11_VCOCAL_RUN);
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if (err)
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return err;
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return 0;
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}
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/* Read VCO calibration value */
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static int fc0011_vcocal_read(struct fc0011_priv *priv, u8 *value)
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{
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int err;
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err = fc0011_writereg(priv, FC11_REG_VCOCAL, FC11_VCOCAL_RUN);
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if (err)
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return err;
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msleep(10);
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err = fc0011_readreg(priv, FC11_REG_VCOCAL, value);
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if (err)
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return err;
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return 0;
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}
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static int fc0011_set_params(struct dvb_frontend *fe)
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{
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struct dtv_frontend_properties *p = &fe->dtv_property_cache;
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struct fc0011_priv *priv = fe->tuner_priv;
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int err;
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unsigned int i, vco_retries;
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u32 freq = p->frequency / 1000;
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u32 bandwidth = p->bandwidth_hz / 1000;
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u32 fvco, xin, xdiv, xdivr;
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u16 frac;
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u8 fa, fp, vco_sel, vco_cal;
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u8 regs[FC11_NR_REGS] = { };
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regs[FC11_REG_7] = 0x0F;
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regs[FC11_REG_8] = 0x3E;
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regs[FC11_REG_10] = 0xB8;
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regs[FC11_REG_11] = 0x80;
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regs[FC11_REG_RCCAL] = 0x04;
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err = fc0011_writereg(priv, FC11_REG_7, regs[FC11_REG_7]);
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err |= fc0011_writereg(priv, FC11_REG_8, regs[FC11_REG_8]);
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err |= fc0011_writereg(priv, FC11_REG_10, regs[FC11_REG_10]);
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err |= fc0011_writereg(priv, FC11_REG_11, regs[FC11_REG_11]);
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err |= fc0011_writereg(priv, FC11_REG_RCCAL, regs[FC11_REG_RCCAL]);
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if (err)
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return -EIO;
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/* Set VCO freq and VCO div */
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if (freq < 54000) {
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fvco = freq * 64;
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regs[FC11_REG_VCO] = 0x82;
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} else if (freq < 108000) {
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fvco = freq * 32;
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regs[FC11_REG_VCO] = 0x42;
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} else if (freq < 216000) {
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fvco = freq * 16;
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regs[FC11_REG_VCO] = 0x22;
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} else if (freq < 432000) {
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fvco = freq * 8;
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regs[FC11_REG_VCO] = 0x12;
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} else {
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fvco = freq * 4;
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regs[FC11_REG_VCO] = 0x0A;
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}
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/* Calc XIN. The PLL reference frequency is 18 MHz. */
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xdiv = fvco / 18000;
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frac = fvco - xdiv * 18000;
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frac = (frac << 15) / 18000;
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if (frac >= 16384)
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frac += 32786;
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if (!frac)
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xin = 0;
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else if (frac < 511)
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xin = 512;
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else if (frac < 65026)
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xin = frac;
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else
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xin = 65024;
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regs[FC11_REG_XINHI] = xin >> 8;
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regs[FC11_REG_XINLO] = xin;
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/* Calc FP and FA */
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xdivr = xdiv;
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if (fvco - xdiv * 18000 >= 9000)
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xdivr += 1; /* round */
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fp = xdivr / 8;
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fa = xdivr - fp * 8;
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if (fa < 2) {
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fp -= 1;
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fa += 8;
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}
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if (fp > 0x1F) {
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fp &= 0x1F;
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fa &= 0xF;
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}
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if (fa >= fp) {
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dev_warn(&priv->i2c->dev,
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"fa %02X >= fp %02X, but trying to continue\n",
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(unsigned int)(u8)fa, (unsigned int)(u8)fp);
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}
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regs[FC11_REG_FA] = fa;
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regs[FC11_REG_FP] = fp;
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/* Select bandwidth */
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switch (bandwidth) {
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case 8000:
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break;
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case 7000:
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regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_BW7M;
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break;
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default:
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dev_warn(&priv->i2c->dev, "Unsupported bandwidth %u kHz. "
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"Using 6000 kHz.\n",
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bandwidth);
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bandwidth = 6000;
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/* fallthrough */
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case 6000:
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regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_BW6M;
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break;
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}
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/* Pre VCO select */
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if (fvco < 2320000) {
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vco_sel = 0;
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regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2);
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} else if (fvco < 3080000) {
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vco_sel = 1;
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regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2);
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regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_1;
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} else {
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vco_sel = 2;
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regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2);
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regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_2;
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}
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/* Fix for low freqs */
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if (freq < 45000) {
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regs[FC11_REG_FA] = 0x6;
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regs[FC11_REG_FP] = 0x11;
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}
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/* Clock out fix */
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regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_CLKOUT;
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/* Write the cached registers */
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for (i = FC11_REG_FA; i <= FC11_REG_VCOSEL; i++) {
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err = fc0011_writereg(priv, i, regs[i]);
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if (err)
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return err;
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}
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/* VCO calibration */
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err = fc0011_vcocal_trigger(priv);
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if (err)
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return err;
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err = fc0011_vcocal_read(priv, &vco_cal);
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if (err)
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return err;
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vco_retries = 0;
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while (!(vco_cal & FC11_VCOCAL_OK) && vco_retries < 6) {
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/* Reset the tuner and try again */
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err = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
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FC0011_FE_CALLBACK_RESET, priv->addr);
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if (err) {
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dev_err(&priv->i2c->dev, "Failed to reset tuner\n");
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return err;
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}
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/* Reinit tuner config */
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err = 0;
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for (i = FC11_REG_FA; i <= FC11_REG_VCOSEL; i++)
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err |= fc0011_writereg(priv, i, regs[i]);
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err |= fc0011_writereg(priv, FC11_REG_7, regs[FC11_REG_7]);
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err |= fc0011_writereg(priv, FC11_REG_8, regs[FC11_REG_8]);
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err |= fc0011_writereg(priv, FC11_REG_10, regs[FC11_REG_10]);
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err |= fc0011_writereg(priv, FC11_REG_11, regs[FC11_REG_11]);
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err |= fc0011_writereg(priv, FC11_REG_RCCAL, regs[FC11_REG_RCCAL]);
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if (err)
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return -EIO;
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/* VCO calibration */
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err = fc0011_vcocal_trigger(priv);
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if (err)
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return err;
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err = fc0011_vcocal_read(priv, &vco_cal);
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if (err)
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return err;
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vco_retries++;
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}
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if (!(vco_cal & FC11_VCOCAL_OK)) {
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dev_err(&priv->i2c->dev,
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"Failed to read VCO calibration value (got %02X)\n",
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(unsigned int)vco_cal);
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return -EIO;
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}
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vco_cal &= FC11_VCOCAL_VALUEMASK;
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switch (vco_sel) {
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case 0:
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if (vco_cal < 8) {
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regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2);
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regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_1;
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err = fc0011_writereg(priv, FC11_REG_VCOSEL,
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regs[FC11_REG_VCOSEL]);
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if (err)
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return err;
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err = fc0011_vcocal_trigger(priv);
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if (err)
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return err;
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} else {
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regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2);
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err = fc0011_writereg(priv, FC11_REG_VCOSEL,
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regs[FC11_REG_VCOSEL]);
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if (err)
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return err;
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}
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break;
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case 1:
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if (vco_cal < 5) {
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regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2);
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regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_2;
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err = fc0011_writereg(priv, FC11_REG_VCOSEL,
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regs[FC11_REG_VCOSEL]);
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if (err)
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return err;
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err = fc0011_vcocal_trigger(priv);
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if (err)
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return err;
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} else if (vco_cal <= 48) {
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regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2);
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regs[FC11_REG_VCOSEL] |= FC11_VCOSEL_1;
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err = fc0011_writereg(priv, FC11_REG_VCOSEL,
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regs[FC11_REG_VCOSEL]);
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if (err)
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return err;
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} else {
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regs[FC11_REG_VCOSEL] &= ~(FC11_VCOSEL_1 | FC11_VCOSEL_2);
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err = fc0011_writereg(priv, FC11_REG_VCOSEL,
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regs[FC11_REG_VCOSEL]);
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if (err)
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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;
|
||||
msleep(10);
|
||||
|
||||
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");
|
|
@ -0,0 +1,41 @@
|
|||
#ifndef LINUX_FC0011_H_
|
||||
#define LINUX_FC0011_H_
|
||||
|
||||
#include "dvb_frontend.h"
|
||||
|
||||
|
||||
/** struct fc0011_config - fc0011 hardware config
|
||||
*
|
||||
* @i2c_address: I2C bus address.
|
||||
*/
|
||||
struct fc0011_config {
|
||||
u8 i2c_address;
|
||||
};
|
||||
|
||||
/** enum fc0011_fe_callback_commands - Frontend callbacks
|
||||
*
|
||||
* @FC0011_FE_CALLBACK_POWER: Power on tuner hardware.
|
||||
* @FC0011_FE_CALLBACK_RESET: Request a tuner reset.
|
||||
*/
|
||||
enum fc0011_fe_callback_commands {
|
||||
FC0011_FE_CALLBACK_POWER,
|
||||
FC0011_FE_CALLBACK_RESET,
|
||||
};
|
||||
|
||||
#if defined(CONFIG_MEDIA_TUNER_FC0011) ||\
|
||||
defined(CONFIG_MEDIA_TUNER_FC0011_MODULE)
|
||||
struct dvb_frontend *fc0011_attach(struct dvb_frontend *fe,
|
||||
struct i2c_adapter *i2c,
|
||||
const struct fc0011_config *config);
|
||||
#else
|
||||
static inline
|
||||
struct dvb_frontend *fc0011_attach(struct dvb_frontend *fe,
|
||||
struct i2c_adapter *i2c,
|
||||
const struct fc0011_config *config)
|
||||
{
|
||||
dev_err(&i2c->dev, "fc0011 driver disabled in Kconfig\n");
|
||||
return NULL;
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* LINUX_FC0011_H_ */
|
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