From: Antti Palosaari Date: Fri, 30 Mar 2012 09:37:26 +0000 (-0300) Subject: [media] Infineon TUA 9001 silicon tuner driver X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=f9263747b1669cbe21b7e21fe4316559cf5138f7;p=~shefty%2Frdma-dev.git [media] Infineon TUA 9001 silicon tuner driver Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/common/tuners/Kconfig b/drivers/media/common/tuners/Kconfig index 4a6d5cef396..ae8ebcfa6fa 100644 --- a/drivers/media/common/tuners/Kconfig +++ b/drivers/media/common/tuners/Kconfig @@ -211,4 +211,10 @@ config MEDIA_TUNER_TDA18212 help NXP TDA18212 silicon tuner driver. +config MEDIA_TUNER_TUA9001 + tristate "Infineon TUA 9001 silicon tuner" + depends on VIDEO_MEDIA && I2C + default m if MEDIA_TUNER_CUSTOMISE + help + Infineon TUA 9001 silicon tuner driver. endmenu diff --git a/drivers/media/common/tuners/Makefile b/drivers/media/common/tuners/Makefile index f80407eb899..6c3040501c4 100644 --- a/drivers/media/common/tuners/Makefile +++ b/drivers/media/common/tuners/Makefile @@ -28,6 +28,7 @@ obj-$(CONFIG_MEDIA_TUNER_MC44S803) += mc44s803.o obj-$(CONFIG_MEDIA_TUNER_MAX2165) += max2165.o obj-$(CONFIG_MEDIA_TUNER_TDA18218) += tda18218.o obj-$(CONFIG_MEDIA_TUNER_TDA18212) += tda18212.o +obj-$(CONFIG_MEDIA_TUNER_TUA9001) += tua9001.o ccflags-y += -I$(srctree)/drivers/media/dvb/dvb-core ccflags-y += -I$(srctree)/drivers/media/dvb/frontends diff --git a/drivers/media/common/tuners/tua9001.c b/drivers/media/common/tuners/tua9001.c new file mode 100644 index 00000000000..de260708467 --- /dev/null +++ b/drivers/media/common/tuners/tua9001.c @@ -0,0 +1,215 @@ +/* + * Infineon TUA 9001 silicon tuner driver + * + * Copyright (C) 2009 Antti Palosaari + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "tua9001.h" +#include "tua9001_priv.h" + +/* write register */ +static int tua9001_wr_reg(struct tua9001_priv *priv, u8 reg, u16 val) +{ + int ret; + u8 buf[3] = { reg, (val >> 8) & 0xff, (val >> 0) & 0xff }; + struct i2c_msg msg[1] = { + { + .addr = priv->cfg->i2c_addr, + .flags = 0, + .len = sizeof(buf), + .buf = buf, + } + }; + + ret = i2c_transfer(priv->i2c, msg, 1); + if (ret == 1) { + ret = 0; + } else { + printk(KERN_WARNING "%s: I2C wr failed=%d reg=%02x\n", + __func__, ret, reg); + ret = -EREMOTEIO; + } + + return ret; +} + +static int tua9001_release(struct dvb_frontend *fe) +{ + kfree(fe->tuner_priv); + fe->tuner_priv = NULL; + + return 0; +} + +static int tua9001_init(struct dvb_frontend *fe) +{ + struct tua9001_priv *priv = fe->tuner_priv; + int ret = 0; + u8 i; + struct reg_val data[] = { + { 0x1e, 0x6512 }, + { 0x25, 0xb888 }, + { 0x39, 0x5460 }, + { 0x3b, 0x00c0 }, + { 0x3a, 0xf000 }, + { 0x08, 0x0000 }, + { 0x32, 0x0030 }, + { 0x41, 0x703a }, + { 0x40, 0x1c78 }, + { 0x2c, 0x1c00 }, + { 0x36, 0xc013 }, + { 0x37, 0x6f18 }, + { 0x27, 0x0008 }, + { 0x2a, 0x0001 }, + { 0x34, 0x0a40 }, + }; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c-gate */ + + for (i = 0; i < ARRAY_SIZE(data); i++) { + ret = tua9001_wr_reg(priv, data[i].reg, data[i].val); + if (ret) + break; + } + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c-gate */ + + if (ret < 0) + pr_debug("%s: failed=%d\n", __func__, ret); + + return ret; +} + +static int tua9001_set_params(struct dvb_frontend *fe) +{ + struct tua9001_priv *priv = fe->tuner_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret, i; + u16 val; + u32 frequency; + struct reg_val data[2]; + + pr_debug("%s: delivery_system=%d frequency=%d bandwidth_hz=%d\n", + __func__, c->delivery_system, c->frequency, + c->bandwidth_hz); + + switch (c->delivery_system) { + case SYS_DVBT: + switch (c->bandwidth_hz) { + case 8000000: + val = 0x0000; + break; + case 7000000: + val = 0x1000; + break; + case 6000000: + val = 0x2000; + break; + case 5000000: + val = 0x3000; + break; + default: + ret = -EINVAL; + goto err; + } + break; + default: + ret = -EINVAL; + goto err; + } + + data[0].reg = 0x04; + data[0].val = val; + + frequency = (c->frequency - 150000000); + frequency /= 100; + frequency *= 48; + frequency /= 10000; + + data[1].reg = 0x1f; + data[1].val = frequency; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c-gate */ + + for (i = 0; i < ARRAY_SIZE(data); i++) { + ret = tua9001_wr_reg(priv, data[i].reg, data[i].val); + if (ret < 0) + break; + } + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c-gate */ + +err: + if (ret < 0) + pr_debug("%s: failed=%d\n", __func__, ret); + + return ret; +} + +static int tua9001_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) +{ + *frequency = 0; /* Zero-IF */ + + return 0; +} + +static const struct dvb_tuner_ops tua9001_tuner_ops = { + .info = { + .name = "Infineon TUA 9001", + + .frequency_min = 170000000, + .frequency_max = 862000000, + .frequency_step = 0, + }, + + .release = tua9001_release, + + .init = tua9001_init, + .set_params = tua9001_set_params, + + .get_if_frequency = tua9001_get_if_frequency, +}; + +struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe, + struct i2c_adapter *i2c, struct tua9001_config *cfg) +{ + struct tua9001_priv *priv = NULL; + + priv = kzalloc(sizeof(struct tua9001_priv), GFP_KERNEL); + if (priv == NULL) + return NULL; + + priv->cfg = cfg; + priv->i2c = i2c; + + printk(KERN_INFO "Infineon TUA 9001 successfully attached."); + + memcpy(&fe->ops.tuner_ops, &tua9001_tuner_ops, + sizeof(struct dvb_tuner_ops)); + + fe->tuner_priv = priv; + return fe; +} +EXPORT_SYMBOL(tua9001_attach); + +MODULE_DESCRIPTION("Infineon TUA 9001 silicon tuner driver"); +MODULE_AUTHOR("Antti Palosaari "); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/common/tuners/tua9001.h b/drivers/media/common/tuners/tua9001.h new file mode 100644 index 00000000000..38d6ae76b1d --- /dev/null +++ b/drivers/media/common/tuners/tua9001.h @@ -0,0 +1,46 @@ +/* + * Infineon TUA 9001 silicon tuner driver + * + * Copyright (C) 2009 Antti Palosaari + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef TUA9001_H +#define TUA9001_H + +#include "dvb_frontend.h" + +struct tua9001_config { + /* + * I2C address + */ + u8 i2c_addr; +}; + +#if defined(CONFIG_MEDIA_TUNER_TUA9001) || \ + (defined(CONFIG_MEDIA_TUNER_TUA9001_MODULE) && defined(MODULE)) +extern struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe, + struct i2c_adapter *i2c, struct tua9001_config *cfg); +#else +static inline struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe, + struct i2c_adapter *i2c, struct tua9001_config *cfg) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif + +#endif diff --git a/drivers/media/common/tuners/tua9001_priv.h b/drivers/media/common/tuners/tua9001_priv.h new file mode 100644 index 00000000000..73cc1ce0575 --- /dev/null +++ b/drivers/media/common/tuners/tua9001_priv.h @@ -0,0 +1,34 @@ +/* + * Infineon TUA 9001 silicon tuner driver + * + * Copyright (C) 2009 Antti Palosaari + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef TUA9001_PRIV_H +#define TUA9001_PRIV_H + +struct reg_val { + u8 reg; + u16 val; +}; + +struct tua9001_priv { + struct tua9001_config *cfg; + struct i2c_adapter *i2c; +}; + +#endif