Hello Mauro,

On 2014-11-03 22:56:13, Mauro Carvalho Chehab wrote:
>Em Mon, 03 Nov 2014 22:51:31 +0800
>Nibble Max <nibble....@gmail.com> escreveu:
>
>> Hello Mauro,
>> 
>> On 2014-11-03 22:43:18, Mauro Carvalho Chehab wrote:
>> >Em Thu, 30 Oct 2014 16:01:51 +0800
>> >"Nibble Max" <nibble....@gmail.com> escreveu:
>> >
>> >> v3:
>> >> -config demod mclk in "set_params" call back.
>> >> -remove "set_config".
>> >
>> >Where's patch 1/3 v3?
>> 
>> patch 1/3 is the smipcie bridge driver.
>> https://patchwork.linuxtv.org/patch/26436/
>> It has no review feed back, so it has no v3 version.
>
>Ok, re-tagging it as new.
>
>Next time, it is better to submit the entire series again (you may
>add a note that the patch didn't change), as it makes easier to
>discover what's happening.
>
understand. 
Thanks,
Max
>Thanks,
>Mauro
>
>> 
>> >
>> >Regards,
>> >Mauro
>> >
>> BR,
>> Max
>> >> 
>> >> v2:
>> >> -make demod mclk selection logic simple.
>> >> -merge demod mclk and ts mclk into one call back.
>> >> -make code clean.
>> >> 
>> >> M88RS6000 is the integrated chip, which includes tuner and demod.
>> >> Here splite its tuner as a standalone driver.
>> >> .set_config is used to config its demod clock, which sits inside tuner 
>> >> die.
>> >> 
>> >> Signed-off-by: Nibble Max <nibble....@gmail.com>
>> >> ---
>> >>  drivers/media/tuners/Kconfig      |   8 +
>> >>  drivers/media/tuners/Makefile     |   1 +
>> >>  drivers/media/tuners/m88rs6000t.c | 744 
>> >> ++++++++++++++++++++++++++++++++++++++
>> >>  drivers/media/tuners/m88rs6000t.h |  29 ++
>> >>  4 files changed, 782 insertions(+)
>> >> 
>> >> diff --git a/drivers/media/tuners/Kconfig b/drivers/media/tuners/Kconfig
>> >> index f039dc2..42e5a01 100644
>> >> --- a/drivers/media/tuners/Kconfig
>> >> +++ b/drivers/media/tuners/Kconfig
>> >> @@ -232,6 +232,14 @@ config MEDIA_TUNER_M88TS2022
>> >>   help
>> >>     Montage M88TS2022 silicon tuner driver.
>> >>  
>> >> +config MEDIA_TUNER_M88RS6000T
>> >> + tristate "Montage M88RS6000 internal tuner"
>> >> + depends on MEDIA_SUPPORT && I2C
>> >> + select REGMAP_I2C
>> >> + default m if !MEDIA_SUBDRV_AUTOSELECT
>> >> + help
>> >> +   Montage M88RS6000 internal tuner.
>> >> +
>> >>  config MEDIA_TUNER_TUA9001
>> >>   tristate "Infineon TUA 9001 silicon tuner"
>> >>   depends on MEDIA_SUPPORT && I2C
>> >> diff --git a/drivers/media/tuners/Makefile b/drivers/media/tuners/Makefile
>> >> index 49fcf80..da4fe6e 100644
>> >> --- a/drivers/media/tuners/Makefile
>> >> +++ b/drivers/media/tuners/Makefile
>> >> @@ -41,6 +41,7 @@ obj-$(CONFIG_MEDIA_TUNER_IT913X) += it913x.o
>> >>  obj-$(CONFIG_MEDIA_TUNER_R820T) += r820t.o
>> >>  obj-$(CONFIG_MEDIA_TUNER_MXL301RF) += mxl301rf.o
>> >>  obj-$(CONFIG_MEDIA_TUNER_QM1D1C0042) += qm1d1c0042.o
>> >> +obj-$(CONFIG_MEDIA_TUNER_M88RS6000T) += m88rs6000t.o
>> >>  
>> >>  ccflags-y += -I$(srctree)/drivers/media/dvb-core
>> >>  ccflags-y += -I$(srctree)/drivers/media/dvb-frontends
>> >> diff --git a/drivers/media/tuners/m88rs6000t.c 
>> >> b/drivers/media/tuners/m88rs6000t.c
>> >> new file mode 100644
>> >> index 0000000..d4c13fe
>> >> --- /dev/null
>> >> +++ b/drivers/media/tuners/m88rs6000t.c
>> >> @@ -0,0 +1,744 @@
>> >> +/*
>> >> + * Driver for the internal tuner of Montage M88RS6000
>> >> + *
>> >> + * Copyright (C) 2014 Max nibble <nibble....@gmail.com>
>> >> + *
>> >> + *    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.
>> >> + */
>> >> +
>> >> +#include "m88rs6000t.h"
>> >> +#include <linux/regmap.h>
>> >> +
>> >> +struct m88rs6000t_dev {
>> >> + struct m88rs6000t_config cfg;
>> >> + struct i2c_client *client;
>> >> + struct regmap *regmap;
>> >> + u32 frequency_khz;
>> >> +};
>> >> +
>> >> +struct m88rs6000t_reg_val {
>> >> + u8 reg;
>> >> + u8 val;
>> >> +};
>> >> +
>> >> +/* set demod main mclk and ts mclk */
>> >> +static int m88rs6000t_set_demod_mclk(struct dvb_frontend *fe)
>> >> +{
>> >> + struct m88rs6000t_dev *dev = fe->tuner_priv;
>> >> + struct dtv_frontend_properties *c = &fe->dtv_property_cache;
>> >> + u8 reg11, reg15, reg16, reg1D, reg1E, reg1F;
>> >> + u8 N, f0 = 0, f1 = 0, f2 = 0, f3 = 0;
>> >> + u16 pll_div_fb;
>> >> + u32 div, ts_mclk;
>> >> + unsigned int utmp;
>> >> + int ret;
>> >> +
>> >> + /* select demod main mclk */
>> >> + ret = regmap_read(dev->regmap, 0x15, &utmp);
>> >> + if (ret)
>> >> +         goto err;
>> >> + reg15 = utmp;
>> >> + if (c->symbol_rate > 45010000) {
>> >> +         reg11 = 0x0E;
>> >> +         reg15 |= 0x02;
>> >> +         reg16 = 115; /* mclk = 110.25MHz */
>> >> + } else {
>> >> +         reg11 = 0x0A;
>> >> +         reg15 &= ~0x02;
>> >> +         reg16 = 96; /* mclk = 96MHz */
>> >> + }
>> >> +
>> >> + /* set ts mclk */
>> >> + if (c->delivery_system == SYS_DVBS)
>> >> +         ts_mclk = 96000;
>> >> + else
>> >> +         ts_mclk = 144000;
>> >> +
>> >> + pll_div_fb = (reg15 & 0x01) << 8;
>> >> + pll_div_fb += reg16;
>> >> + pll_div_fb += 32;
>> >> +
>> >> + div = 36000 * pll_div_fb;
>> >> + div /= ts_mclk;
>> >> +
>> >> + if (div <= 32) {
>> >> +         N = 2;
>> >> +         f0 = 0;
>> >> +         f1 = div / 2;
>> >> +         f2 = div - f1;
>> >> +         f3 = 0;
>> >> + } else if (div <= 48) {
>> >> +         N = 3;
>> >> +         f0 = div / 3;
>> >> +         f1 = (div - f0) / 2;
>> >> +         f2 = div - f0 - f1;
>> >> +         f3 = 0;
>> >> + } else if (div <= 64) {
>> >> +         N = 4;
>> >> +         f0 = div / 4;
>> >> +         f1 = (div - f0) / 3;
>> >> +         f2 = (div - f0 - f1) / 2;
>> >> +         f3 = div - f0 - f1 - f2;
>> >> + } else {
>> >> +         N = 4;
>> >> +         f0 = 16;
>> >> +         f1 = 16;
>> >> +         f2 = 16;
>> >> +         f3 = 16;
>> >> + }
>> >> +
>> >> + if (f0 == 16)
>> >> +         f0 = 0;
>> >> + if (f1 == 16)
>> >> +         f1 = 0;
>> >> + if (f2 == 16)
>> >> +         f2 = 0;
>> >> + if (f3 == 16)
>> >> +         f3 = 0;
>> >> +
>> >> + ret = regmap_read(dev->regmap, 0x1D, &utmp);
>> >> + if (ret)
>> >> +         goto err;
>> >> + reg1D = utmp;
>> >> + reg1D &= ~0x03;
>> >> + reg1D |= N - 1;
>> >> + reg1E = ((f3 << 4) + f2) & 0xFF;
>> >> + reg1F = ((f1 << 4) + f0) & 0xFF;
>> >> +
>> >> + /* program and recalibrate demod PLL */
>> >> + ret = regmap_write(dev->regmap, 0x05, 0x40);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x11, 0x08);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x15, reg15);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x16, reg16);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x1D, reg1D);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x1E, reg1E);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x1F, reg1F);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x17, 0xc1);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x17, 0x81);
>> >> + if (ret)
>> >> +         goto err;
>> >> + usleep_range(5000, 50000);
>> >> + ret = regmap_write(dev->regmap, 0x05, 0x00);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x11, reg11);
>> >> + if (ret)
>> >> +         goto err;
>> >> + usleep_range(5000, 50000);
>> >> +err:
>> >> + if (ret)
>> >> +         dev_dbg(&dev->client->dev, "failed=%d\n", ret);
>> >> + return ret;
>> >> +}
>> >> +
>> >> +static int m88rs6000t_set_pll_freq(struct m88rs6000t_dev *dev,
>> >> +                 u32 tuner_freq_MHz)
>> >> +{
>> >> + u32 fcry_KHz, ulNDiv1, ulNDiv2, ulNDiv;
>> >> + u8 refDiv, ucLoDiv1, ucLomod1, ucLoDiv2, ucLomod2, ucLoDiv, ucLomod;
>> >> + u8 reg27, reg29, reg42, reg42buf;
>> >> + unsigned int utmp;
>> >> + int ret;
>> >> +
>> >> + fcry_KHz = 27000; /* in kHz */
>> >> + refDiv = 27;
>> >> +
>> >> + ret = regmap_write(dev->regmap, 0x36, (refDiv - 8));
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x31, 0x00);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x2c, 0x02);
>> >> + if (ret)
>> >> +         goto err;
>> >> +
>> >> + if (tuner_freq_MHz >= 1550) {
>> >> +         ucLoDiv1 = 2;
>> >> +         ucLomod1 = 0;
>> >> +         ucLoDiv2 = 2;
>> >> +         ucLomod2 = 0;
>> >> + } else if (tuner_freq_MHz >= 1380) {
>> >> +         ucLoDiv1 = 3;
>> >> +         ucLomod1 = 16;
>> >> +         ucLoDiv2 = 2;
>> >> +         ucLomod2 = 0;
>> >> + } else if (tuner_freq_MHz >= 1070) {
>> >> +         ucLoDiv1 = 3;
>> >> +         ucLomod1 = 16;
>> >> +         ucLoDiv2 = 3;
>> >> +         ucLomod2 = 16;
>> >> + } else if (tuner_freq_MHz >= 1000) {
>> >> +         ucLoDiv1 = 3;
>> >> +         ucLomod1 = 16;
>> >> +         ucLoDiv2 = 4;
>> >> +         ucLomod2 = 64;
>> >> + } else if (tuner_freq_MHz >= 775) {
>> >> +         ucLoDiv1 = 4;
>> >> +         ucLomod1 = 64;
>> >> +         ucLoDiv2 = 4;
>> >> +         ucLomod2 = 64;
>> >> + } else if (tuner_freq_MHz >= 700) {
>> >> +         ucLoDiv1 = 6;
>> >> +         ucLomod1 = 48;
>> >> +         ucLoDiv2 = 4;
>> >> +         ucLomod2 = 64;
>> >> + } else if (tuner_freq_MHz >= 520) {
>> >> +         ucLoDiv1 = 6;
>> >> +         ucLomod1 = 48;
>> >> +         ucLoDiv2 = 6;
>> >> +         ucLomod2 = 48;
>> >> + } else {
>> >> +         ucLoDiv1 = 8;
>> >> +         ucLomod1 = 96;
>> >> +         ucLoDiv2 = 8;
>> >> +         ucLomod2 = 96;
>> >> + }
>> >> +
>> >> + ulNDiv1 = ((tuner_freq_MHz * ucLoDiv1 * 1000) * refDiv
>> >> +                 / fcry_KHz - 1024) / 2;
>> >> + ulNDiv2 = ((tuner_freq_MHz * ucLoDiv2 * 1000) * refDiv
>> >> +                 / fcry_KHz - 1024) / 2;
>> >> +
>> >> + reg27 = (((ulNDiv1 >> 8) & 0x0F) + ucLomod1) & 0x7F;
>> >> + ret = regmap_write(dev->regmap, 0x27, reg27);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x28, (u8)(ulNDiv1 & 0xFF));
>> >> + if (ret)
>> >> +         goto err;
>> >> + reg29 = (((ulNDiv2 >> 8) & 0x0F) + ucLomod2) & 0x7f;
>> >> + ret = regmap_write(dev->regmap, 0x29, reg29);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x2a, (u8)(ulNDiv2 & 0xFF));
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x2F, 0xf5);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x30, 0x05);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x08, 0x1f);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x08, 0x3f);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x09, 0x20);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x09, 0x00);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x3e, 0x11);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x08, 0x2f);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x08, 0x3f);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x09, 0x10);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x09, 0x00);
>> >> + if (ret)
>> >> +         goto err;
>> >> + usleep_range(2000, 50000);
>> >> +
>> >> + ret = regmap_read(dev->regmap, 0x42, &utmp);
>> >> + if (ret)
>> >> +         goto err;
>> >> + reg42 = utmp;
>> >> +
>> >> + ret = regmap_write(dev->regmap, 0x3e, 0x10);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x08, 0x2f);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x08, 0x3f);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x09, 0x10);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x09, 0x00);
>> >> + if (ret)
>> >> +         goto err;
>> >> + usleep_range(2000, 50000);
>> >> +
>> >> + ret = regmap_read(dev->regmap, 0x42, &utmp);
>> >> + if (ret)
>> >> +         goto err;
>> >> + reg42buf = utmp;
>> >> + if (reg42buf < reg42) {
>> >> +         ret = regmap_write(dev->regmap, 0x3e, 0x11);
>> >> +         if (ret)
>> >> +                 goto err;
>> >> + }
>> >> + usleep_range(5000, 50000);
>> >> +
>> >> + ret = regmap_read(dev->regmap, 0x2d, &utmp);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x2d, utmp);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_read(dev->regmap, 0x2e, &utmp);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x2e, utmp);
>> >> + if (ret)
>> >> +         goto err;
>> >> +
>> >> + ret = regmap_read(dev->regmap, 0x27, &utmp);
>> >> + if (ret)
>> >> +         goto err;
>> >> + reg27 = utmp & 0x70;
>> >> + ret = regmap_read(dev->regmap, 0x83, &utmp);
>> >> + if (ret)
>> >> +         goto err;
>> >> + if (reg27 == (utmp & 0x70)) {
>> >> +         ucLoDiv = ucLoDiv1;
>> >> +         ulNDiv = ulNDiv1;
>> >> +         ucLomod = ucLomod1 / 16;
>> >> + } else {
>> >> +         ucLoDiv = ucLoDiv2;
>> >> +         ulNDiv = ulNDiv2;
>> >> +         ucLomod = ucLomod2 / 16;
>> >> + }
>> >> +
>> >> + if ((ucLoDiv == 3) || (ucLoDiv == 6)) {
>> >> +         refDiv = 18;
>> >> +         ret = regmap_write(dev->regmap, 0x36, (refDiv - 8));
>> >> +         if (ret)
>> >> +                 goto err;
>> >> +         ulNDiv = ((tuner_freq_MHz * ucLoDiv * 1000) * refDiv
>> >> +                         / fcry_KHz - 1024) / 2;
>> >> + }
>> >> +
>> >> + reg27 = (0x80 + ((ucLomod << 4) & 0x70)
>> >> +                 + ((ulNDiv >> 8) & 0x0F)) & 0xFF;
>> >> + ret = regmap_write(dev->regmap, 0x27, reg27);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x28, (u8)(ulNDiv & 0xFF));
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x29, 0x80);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x31, 0x03);
>> >> + if (ret)
>> >> +         goto err;
>> >> +
>> >> + if (ucLoDiv == 3)
>> >> +         utmp = 0xCE;
>> >> + else
>> >> +         utmp = 0x8A;
>> >> + ret = regmap_write(dev->regmap, 0x3b, utmp);
>> >> + if (ret)
>> >> +         goto err;
>> >> +
>> >> + dev->frequency_khz = fcry_KHz * (ulNDiv * 2 + 1024) / refDiv / ucLoDiv;
>> >> +
>> >> + dev_dbg(&dev->client->dev,
>> >> +         "actual tune frequency=%d\n", dev->frequency_khz);
>> >> +err:
>> >> + if (ret)
>> >> +         dev_dbg(&dev->client->dev, "failed=%d\n", ret);
>> >> + return ret;
>> >> +}
>> >> +
>> >> +static int m88rs6000t_set_bb(struct m88rs6000t_dev *dev,
>> >> +         u32 symbol_rate_KSs, s32 lpf_offset_KHz)
>> >> +{
>> >> + u32 f3dB;
>> >> + u8  reg40;
>> >> +
>> >> + f3dB = symbol_rate_KSs * 9 / 14 + 2000;
>> >> + f3dB += lpf_offset_KHz;
>> >> + f3dB = clamp_val(f3dB, 6000U, 43000U);
>> >> + reg40 = f3dB / 1000;
>> >> + return regmap_write(dev->regmap, 0x40, reg40);
>> >> +}
>> >> +
>> >> +static int m88rs6000t_set_params(struct dvb_frontend *fe)
>> >> +{
>> >> + struct m88rs6000t_dev *dev = fe->tuner_priv;
>> >> + struct dtv_frontend_properties *c = &fe->dtv_property_cache;
>> >> + int ret;
>> >> + s32 lpf_offset_KHz;
>> >> + u32 realFreq, freq_MHz;
>> >> +
>> >> + dev_dbg(&dev->client->dev,
>> >> +                 "frequency=%d symbol_rate=%d\n",
>> >> +                 c->frequency, c->symbol_rate);
>> >> +
>> >> + if (c->symbol_rate < 5000000)
>> >> +         lpf_offset_KHz = 3000;
>> >> + else
>> >> +         lpf_offset_KHz = 0;
>> >> +
>> >> + realFreq = c->frequency + lpf_offset_KHz;
>> >> + /* set tuner pll.*/
>> >> + freq_MHz = (realFreq + 500) / 1000;
>> >> + ret = m88rs6000t_set_pll_freq(dev, freq_MHz);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = m88rs6000t_set_bb(dev, c->symbol_rate / 1000, lpf_offset_KHz);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x00, 0x01);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x00, 0x00);
>> >> + if (ret)
>> >> +         goto err;
>> >> + /* set demod mlck */
>> >> + ret = m88rs6000t_set_demod_mclk(fe);
>> >> +err:
>> >> + if (ret)
>> >> +         dev_dbg(&dev->client->dev, "failed=%d\n", ret);
>> >> + return ret;
>> >> +}
>> >> +
>> >> +static int m88rs6000t_init(struct dvb_frontend *fe)
>> >> +{
>> >> + struct m88rs6000t_dev *dev = fe->tuner_priv;
>> >> + int ret;
>> >> +
>> >> + dev_dbg(&dev->client->dev, "%s:\n", __func__);
>> >> +
>> >> + ret = regmap_update_bits(dev->regmap, 0x11, 0x08, 0x08);
>> >> + if (ret)
>> >> +         goto err;
>> >> + usleep_range(5000, 50000);
>> >> + ret = regmap_update_bits(dev->regmap, 0x10, 0x01, 0x01);
>> >> + if (ret)
>> >> +         goto err;
>> >> + usleep_range(10000, 50000);
>> >> + ret = regmap_write(dev->regmap, 0x07, 0x7d);
>> >> +err:
>> >> + if (ret)
>> >> +         dev_dbg(&dev->client->dev, "failed=%d\n", ret);
>> >> + return ret;
>> >> +}
>> >> +
>> >> +static int m88rs6000t_sleep(struct dvb_frontend *fe)
>> >> +{
>> >> + struct m88rs6000t_dev *dev = fe->tuner_priv;
>> >> + int ret;
>> >> +
>> >> + dev_dbg(&dev->client->dev, "%s:\n", __func__);
>> >> +
>> >> + ret = regmap_write(dev->regmap, 0x07, 0x6d);
>> >> + if (ret)
>> >> +         goto err;
>> >> + usleep_range(5000, 10000);
>> >> +err:
>> >> + if (ret)
>> >> +         dev_dbg(&dev->client->dev, "failed=%d\n", ret);
>> >> + return ret;
>> >> +}
>> >> +
>> >> +static int m88rs6000t_get_frequency(struct dvb_frontend *fe, u32 
>> >> *frequency)
>> >> +{
>> >> + struct m88rs6000t_dev *dev = fe->tuner_priv;
>> >> +
>> >> + dev_dbg(&dev->client->dev, "\n");
>> >> +
>> >> + *frequency = dev->frequency_khz;
>> >> + return 0;
>> >> +}
>> >> +
>> >> +static int m88rs6000t_get_if_frequency(struct dvb_frontend *fe, u32 
>> >> *frequency)
>> >> +{
>> >> + struct m88rs6000t_dev *dev = fe->tuner_priv;
>> >> +
>> >> + dev_dbg(&dev->client->dev, "\n");
>> >> +
>> >> + *frequency = 0; /* Zero-IF */
>> >> + return 0;
>> >> +}
>> >> +
>> >> +
>> >> +static int m88rs6000t_get_rf_strength(struct dvb_frontend *fe, u16 
>> >> *strength)
>> >> +{
>> >> + struct m88rs6000t_dev *dev = fe->tuner_priv;
>> >> + unsigned int val, i;
>> >> + int ret;
>> >> + u16 gain;
>> >> + u32 PGA2_cri_GS = 46, PGA2_crf_GS = 290, TIA_GS = 290;
>> >> + u32 RF_GC = 1200, IF_GC = 1100, BB_GC = 300;
>> >> + u32 PGA2_GC = 300, TIA_GC = 300, PGA2_cri = 0, PGA2_crf = 0;
>> >> + u32 RFG = 0, IFG = 0, BBG = 0, PGA2G = 0, TIAG = 0;
>> >> + u32 RFGS[13] = {0, 245, 266, 268, 270, 285,
>> >> +                 298, 295, 283, 285, 285, 300, 300};
>> >> + u32 IFGS[12] = {0, 300, 230, 270, 270, 285,
>> >> +                 295, 285, 290, 295, 295, 310};
>> >> + u32 BBGS[14] = {0, 286, 275, 290, 294, 300, 290,
>> >> +                 290, 285, 283, 260, 295, 290, 260};
>> >> +
>> >> + ret = regmap_read(dev->regmap, 0x5A, &val);
>> >> + if (ret)
>> >> +         goto err;
>> >> + RF_GC = val & 0x0f;
>> >> +
>> >> + ret = regmap_read(dev->regmap, 0x5F, &val);
>> >> + if (ret)
>> >> +         goto err;
>> >> + IF_GC = val & 0x0f;
>> >> +
>> >> + ret = regmap_read(dev->regmap, 0x3F, &val);
>> >> + if (ret)
>> >> +         goto err;
>> >> + TIA_GC = (val >> 4) & 0x07;
>> >> +
>> >> + ret = regmap_read(dev->regmap, 0x77, &val);
>> >> + if (ret)
>> >> +         goto err;
>> >> + BB_GC = (val >> 4) & 0x0f;
>> >> +
>> >> + ret = regmap_read(dev->regmap, 0x76, &val);
>> >> + if (ret)
>> >> +         goto err;
>> >> + PGA2_GC = val & 0x3f;
>> >> + PGA2_cri = PGA2_GC >> 2;
>> >> + PGA2_crf = PGA2_GC & 0x03;
>> >> +
>> >> + for (i = 0; i <= RF_GC; i++)
>> >> +         RFG += RFGS[i];
>> >> +
>> >> + if (RF_GC == 0)
>> >> +         RFG += 400;
>> >> + if (RF_GC == 1)
>> >> +         RFG += 300;
>> >> + if (RF_GC == 2)
>> >> +         RFG += 200;
>> >> + if (RF_GC == 3)
>> >> +         RFG += 100;
>> >> +
>> >> + for (i = 0; i <= IF_GC; i++)
>> >> +         IFG += IFGS[i];
>> >> +
>> >> + TIAG = TIA_GC * TIA_GS;
>> >> +
>> >> + for (i = 0; i <= BB_GC; i++)
>> >> +         BBG += BBGS[i];
>> >> +
>> >> + PGA2G = PGA2_cri * PGA2_cri_GS + PGA2_crf * PGA2_crf_GS;
>> >> +
>> >> + gain = RFG + IFG - TIAG + BBG + PGA2G;
>> >> +
>> >> + /* scale value to 0x0000-0xffff */
>> >> + gain = clamp_val(gain, 1000U, 10500U);
>> >> + *strength = (10500 - gain) * 0xffff / (10500 - 1000);
>> >> +err:
>> >> + if (ret)
>> >> +         dev_dbg(&dev->client->dev, "failed=%d\n", ret);
>> >> + return ret;
>> >> +}
>> >> +
>> >> +static const struct dvb_tuner_ops m88rs6000t_tuner_ops = {
>> >> + .info = {
>> >> +         .name          = "Montage M88RS6000 Internal Tuner",
>> >> +         .frequency_min = 950000,
>> >> +         .frequency_max = 2150000,
>> >> + },
>> >> +
>> >> + .init = m88rs6000t_init,
>> >> + .sleep = m88rs6000t_sleep,
>> >> + .set_params = m88rs6000t_set_params,
>> >> + .get_frequency = m88rs6000t_get_frequency,
>> >> + .get_if_frequency = m88rs6000t_get_if_frequency,
>> >> + .get_rf_strength = m88rs6000t_get_rf_strength,
>> >> +};
>> >> +
>> >> +static int m88rs6000t_probe(struct i2c_client *client,
>> >> +         const struct i2c_device_id *id)
>> >> +{
>> >> + struct m88rs6000t_config *cfg = client->dev.platform_data;
>> >> + struct dvb_frontend *fe = cfg->fe;
>> >> + struct m88rs6000t_dev *dev;
>> >> + int ret, i;
>> >> + unsigned int utmp;
>> >> + static const struct regmap_config regmap_config = {
>> >> +         .reg_bits = 8,
>> >> +         .val_bits = 8,
>> >> + };
>> >> + static const struct m88rs6000t_reg_val reg_vals[] = {
>> >> +         {0x10, 0xfb},
>> >> +         {0x24, 0x38},
>> >> +         {0x11, 0x0a},
>> >> +         {0x12, 0x00},
>> >> +         {0x2b, 0x1c},
>> >> +         {0x44, 0x48},
>> >> +         {0x54, 0x24},
>> >> +         {0x55, 0x06},
>> >> +         {0x59, 0x00},
>> >> +         {0x5b, 0x4c},
>> >> +         {0x60, 0x8b},
>> >> +         {0x61, 0xf4},
>> >> +         {0x65, 0x07},
>> >> +         {0x6d, 0x6f},
>> >> +         {0x6e, 0x31},
>> >> +         {0x3c, 0xf3},
>> >> +         {0x37, 0x0f},
>> >> +         {0x48, 0x28},
>> >> +         {0x49, 0xd8},
>> >> +         {0x70, 0x66},
>> >> +         {0x71, 0xCF},
>> >> +         {0x72, 0x81},
>> >> +         {0x73, 0xA7},
>> >> +         {0x74, 0x4F},
>> >> +         {0x75, 0xFC},
>> >> + };
>> >> +
>> >> + dev = kzalloc(sizeof(*dev), GFP_KERNEL);
>> >> + if (!dev) {
>> >> +         ret = -ENOMEM;
>> >> +         dev_err(&client->dev, "kzalloc() failed\n");
>> >> +         goto err;
>> >> + }
>> >> +
>> >> + memcpy(&dev->cfg, cfg, sizeof(struct m88rs6000t_config));
>> >> + dev->client = client;
>> >> + dev->regmap = devm_regmap_init_i2c(client, &regmap_config);
>> >> + if (IS_ERR(dev->regmap)) {
>> >> +         ret = PTR_ERR(dev->regmap);
>> >> +         goto err;
>> >> + }
>> >> +
>> >> + ret = regmap_update_bits(dev->regmap, 0x11, 0x08, 0x08);
>> >> + if (ret)
>> >> +         goto err;
>> >> + usleep_range(5000, 50000);
>> >> + ret = regmap_update_bits(dev->regmap, 0x10, 0x01, 0x01);
>> >> + if (ret)
>> >> +         goto err;
>> >> + usleep_range(10000, 50000);
>> >> + ret = regmap_write(dev->regmap, 0x07, 0x7d);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x04, 0x01);
>> >> + if (ret)
>> >> +         goto err;
>> >> +
>> >> + /* check tuner chip id */
>> >> + ret = regmap_read(dev->regmap, 0x01, &utmp);
>> >> + if (ret)
>> >> +         goto err;
>> >> + dev_info(&dev->client->dev, "chip_id=%02x\n", utmp);
>> >> + if (utmp != 0x64) {
>> >> +         ret = -ENODEV;
>> >> +         goto err;
>> >> + }
>> >> +
>> >> + /* tuner init. */
>> >> + ret = regmap_write(dev->regmap, 0x05, 0x40);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x11, 0x08);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x15, 0x6c);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x17, 0xc1);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x17, 0x81);
>> >> + if (ret)
>> >> +         goto err;
>> >> + usleep_range(10000, 50000);
>> >> + ret = regmap_write(dev->regmap, 0x05, 0x00);
>> >> + if (ret)
>> >> +         goto err;
>> >> + ret = regmap_write(dev->regmap, 0x11, 0x0a);
>> >> + if (ret)
>> >> +         goto err;
>> >> +
>> >> + for (i = 0; i < ARRAY_SIZE(reg_vals); i++) {
>> >> +         ret = regmap_write(dev->regmap,
>> >> +                         reg_vals[i].reg, reg_vals[i].val);
>> >> +         if (ret)
>> >> +                 goto err;
>> >> + }
>> >> +
>> >> + dev_info(&dev->client->dev, "Montage M88RS6000 internal tuner 
>> >> successfully identified\n");
>> >> +
>> >> + fe->tuner_priv = dev;
>> >> + memcpy(&fe->ops.tuner_ops, &m88rs6000t_tuner_ops,
>> >> +                 sizeof(struct dvb_tuner_ops));
>> >> + i2c_set_clientdata(client, dev);
>> >> + return 0;
>> >> +err:
>> >> + dev_dbg(&client->dev, "failed=%d\n", ret);
>> >> + kfree(dev);
>> >> + return ret;
>> >> +}
>> >> +
>> >> +static int m88rs6000t_remove(struct i2c_client *client)
>> >> +{
>> >> + struct m88rs6000t_dev *dev = i2c_get_clientdata(client);
>> >> + struct dvb_frontend *fe = dev->cfg.fe;
>> >> +
>> >> + dev_dbg(&client->dev, "\n");
>> >> +
>> >> + memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops));
>> >> + fe->tuner_priv = NULL;
>> >> + kfree(dev);
>> >> +
>> >> + return 0;
>> >> +}
>> >> +
>> >> +static const struct i2c_device_id m88rs6000t_id[] = {
>> >> + {"m88rs6000t", 0},
>> >> + {}
>> >> +};
>> >> +MODULE_DEVICE_TABLE(i2c, m88rs6000t_id);
>> >> +
>> >> +static struct i2c_driver m88rs6000t_driver = {
>> >> + .driver = {
>> >> +         .owner  = THIS_MODULE,
>> >> +         .name   = "m88rs6000t",
>> >> + },
>> >> + .probe          = m88rs6000t_probe,
>> >> + .remove         = m88rs6000t_remove,
>> >> + .id_table       = m88rs6000t_id,
>> >> +};
>> >> +
>> >> +module_i2c_driver(m88rs6000t_driver);
>> >> +
>> >> +MODULE_AUTHOR("Max nibble <nibble....@gmail.com>");
>> >> +MODULE_DESCRIPTION("Montage M88RS6000 internal tuner driver");
>> >> +MODULE_LICENSE("GPL");
>> >> diff --git a/drivers/media/tuners/m88rs6000t.h 
>> >> b/drivers/media/tuners/m88rs6000t.h
>> >> new file mode 100644
>> >> index 0000000..264c13e
>> >> --- /dev/null
>> >> +++ b/drivers/media/tuners/m88rs6000t.h
>> >> @@ -0,0 +1,29 @@
>> >> +/*
>> >> + * Driver for the internal tuner of Montage M88RS6000
>> >> + *
>> >> + * Copyright (C) 2014 Max nibble <nibble....@gmail.com>
>> >> + *
>> >> + *    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.
>> >> + */
>> >> +
>> >> +#ifndef _M88RS6000T_H_
>> >> +#define _M88RS6000T_H_
>> >> +
>> >> +#include "dvb_frontend.h"
>> >> +
>> >> +struct m88rs6000t_config {
>> >> + /*
>> >> +  * pointer to DVB frontend
>> >> +  */
>> >> + struct dvb_frontend *fe;
>> >> +};
>> >> +
>> >> +#endif
>> >> 
>> 

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