From: Olli Salonen <olli.salo...@iki.fi> NXP TDA18250 silicon tuner driver.
Version 4 includes some checkpatch fixes. Signed-off-by: Olli Salonen <olli.salo...@iki.fi> --- MAINTAINERS | 9 + drivers/media/tuners/Kconfig | 7 + drivers/media/tuners/Makefile | 1 + drivers/media/tuners/tda18250.c | 902 +++++++++++++++++++++++++++++++++++ drivers/media/tuners/tda18250.h | 51 ++ drivers/media/tuners/tda18250_priv.h | 145 ++++++ 6 files changed, 1115 insertions(+) create mode 100644 drivers/media/tuners/tda18250.c create mode 100644 drivers/media/tuners/tda18250.h create mode 100644 drivers/media/tuners/tda18250_priv.h diff --git a/MAINTAINERS b/MAINTAINERS index ff987d8..f26204e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13086,6 +13086,15 @@ T: git git://linuxtv.org/anttip/media_tree.git S: Maintained F: drivers/media/tuners/tda18218* +TDA18250 MEDIA DRIVER +M: Olli Salonen <olli.salo...@iki.fi> +L: linux-media@vger.kernel.org +W: https://linuxtv.org +Q: http://patchwork.linuxtv.org/project/linux-media/list/ +T: git git://linuxtv.org/media_tree.git +S: Maintained +F: drivers/media/tuners/tda18250* + TDA18271 MEDIA DRIVER M: Michael Krufky <mkru...@linuxtv.org> L: linux-media@vger.kernel.org diff --git a/drivers/media/tuners/Kconfig b/drivers/media/tuners/Kconfig index 05998f0..6687514 100644 --- a/drivers/media/tuners/Kconfig +++ b/drivers/media/tuners/Kconfig @@ -26,6 +26,13 @@ config MEDIA_TUNER_SIMPLE help Say Y here to include support for various simple tuners. +config MEDIA_TUNER_TDA18250 + tristate "NXP TDA18250 silicon tuner" + depends on MEDIA_SUPPORT && I2C + default m if !MEDIA_SUBDRV_AUTOSELECT + help + Say Y here to include support for TDA18250 tuner. + config MEDIA_TUNER_TDA8290 tristate "TDA 8290/8295 + 8275(a)/18271 tuner combo" depends on MEDIA_SUPPORT && I2C diff --git a/drivers/media/tuners/Makefile b/drivers/media/tuners/Makefile index 06a9ab6..4b9444b 100644 --- a/drivers/media/tuners/Makefile +++ b/drivers/media/tuners/Makefile @@ -41,6 +41,7 @@ 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 +obj-$(CONFIG_MEDIA_TUNER_TDA18250) += tda18250.o ccflags-y += -I$(srctree)/drivers/media/dvb-core ccflags-y += -I$(srctree)/drivers/media/dvb-frontends diff --git a/drivers/media/tuners/tda18250.c b/drivers/media/tuners/tda18250.c new file mode 100644 index 0000000..20d12b0 --- /dev/null +++ b/drivers/media/tuners/tda18250.c @@ -0,0 +1,902 @@ +/* + * NXP TDA18250 silicon tuner driver + * + * Copyright (C) 2017 Olli Salonen <olli.salo...@iki.fi> + * + * 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 "tda18250_priv.h" +#include <linux/regmap.h> + +static const struct dvb_tuner_ops tda18250_ops; + +static int tda18250_power_control(struct dvb_frontend *fe, + unsigned int power_state) +{ + struct i2c_client *client = fe->tuner_priv; + struct tda18250_dev *dev = i2c_get_clientdata(client); + int ret; + unsigned int utmp; + + dev_dbg(&client->dev, "power state: %d", power_state); + + switch (power_state) { + case TDA18250_POWER_NORMAL: + ret = regmap_write_bits(dev->regmap, R06_POWER2, 0x07, 0x00); + if (ret) + goto err; + ret = regmap_write_bits(dev->regmap, R25_REF, 0xc0, 0xc0); + if (ret) + goto err; + break; + case TDA18250_POWER_STANDBY: + if (dev->loopthrough) { + ret = regmap_write_bits(dev->regmap, + R25_REF, 0xc0, 0x80); + if (ret) + goto err; + ret = regmap_write_bits(dev->regmap, + R06_POWER2, 0x07, 0x02); + if (ret) + goto err; + ret = regmap_write_bits(dev->regmap, + R10_LT1, 0x80, 0x00); + if (ret) + goto err; + } else { + ret = regmap_write_bits(dev->regmap, + R25_REF, 0xc0, 0x80); + if (ret) + goto err; + ret = regmap_write_bits(dev->regmap, + R06_POWER2, 0x07, 0x01); + if (ret) + goto err; + ret = regmap_read(dev->regmap, + R0D_AGC12, &utmp); + if (ret) + goto err; + ret = regmap_write_bits(dev->regmap, + R0D_AGC12, 0x03, 0x03); + if (ret) + goto err; + ret = regmap_write_bits(dev->regmap, + R10_LT1, 0x80, 0x80); + if (ret) + goto err; + ret = regmap_write_bits(dev->regmap, + R0D_AGC12, 0x03, utmp & 0x03); + if (ret) + goto err; + } + break; + default: + ret = -EINVAL; + goto err; + } + + return 0; +err: + return ret; +} + +static int tda18250_wait_for_irq(struct dvb_frontend *fe, + int maxwait, int step, u8 irq) +{ + struct i2c_client *client = fe->tuner_priv; + struct tda18250_dev *dev = i2c_get_clientdata(client); + int ret; + unsigned long timeout; + bool triggered; + unsigned int utmp; + + triggered = false; + timeout = jiffies + msecs_to_jiffies(maxwait); + while (!time_after(jiffies, timeout)) { + // check for the IRQ + ret = regmap_read(dev->regmap, R08_IRQ1, &utmp); + if (ret) + goto err; + if ((utmp & irq) == irq) { + triggered = true; + break; + } + msleep(step); + } + + dev_dbg(&client->dev, "waited IRQ (0x%02x) %d ms, triggered: %s", irq, + jiffies_to_msecs(jiffies) - + (jiffies_to_msecs(timeout) - maxwait), + triggered ? "true" : "false"); + + if (!triggered) + return -ETIMEDOUT; + + return 0; +err: + return ret; +} + +static int tda18250_init(struct dvb_frontend *fe) +{ + struct i2c_client *client = fe->tuner_priv; + struct tda18250_dev *dev = i2c_get_clientdata(client); + int ret, i; + + /* default values for various regs */ + static const u8 init_regs[][2] = { + { R0C_AGC11, 0xc7 }, + { R0D_AGC12, 0x5d }, + { R0E_AGC13, 0x40 }, + { R0F_AGC14, 0x0e }, + { R10_LT1, 0x47 }, + { R11_LT2, 0x4e }, + { R12_AGC21, 0x26 }, + { R13_AGC22, 0x60 }, + { R18_AGC32, 0x37 }, + { R19_AGC33, 0x09 }, + { R1A_AGCK, 0x00 }, + { R1E_WI_FI, 0x29 }, + { R1F_RF_BPF, 0x06 }, + { R20_IR_MIX, 0xc6 }, + { R21_IF_AGC, 0x00 }, + { R2C_PS1, 0x75 }, + { R2D_PS2, 0x06 }, + { R2E_PS3, 0x07 }, + { R30_RSSI2, 0x0e }, + { R31_IRQ_CTRL, 0x00 }, + { R39_SD5, 0x00 }, + { R3B_REGU, 0x55 }, + { R3C_RCCAL1, 0xa7 }, + { R3F_IRCAL2, 0x85 }, + { R40_IRCAL3, 0x87 }, + { R41_IRCAL4, 0xc0 }, + { R43_PD1, 0x40 }, + { R44_PD2, 0xc0 }, + { R46_CPUMP, 0x0c }, + { R47_LNAPOL, 0x64 }, + { R4B_XTALOSC1, 0x30 }, + { R59_AGC2_UP2, 0x05 }, + { R5B_AGC_AUTO, 0x07 }, + { R5C_AGC_DEBUG, 0x00 }, + }; + + /* crystal related regs depend on frequency */ + static const u8 xtal_regs[][5] = { + /* reg: 4d 4e 4f 50 51 */ + [TDA18250_XTAL_FREQ_16MHZ] = { 0x3e, 0x80, 0x50, 0x00, 0x20 }, + [TDA18250_XTAL_FREQ_24MHZ] = { 0x5d, 0xc0, 0xec, 0x00, 0x18 }, + [TDA18250_XTAL_FREQ_25MHZ] = { 0x61, 0xa8, 0xec, 0x80, 0x19 }, + [TDA18250_XTAL_FREQ_27MHZ] = { 0x69, 0x78, 0x8d, 0x80, 0x1b }, + [TDA18250_XTAL_FREQ_30MHZ] = { 0x75, 0x30, 0x8f, 0x00, 0x1e }, + }; + + dev_dbg(&client->dev, "\n"); + + ret = tda18250_power_control(fe, TDA18250_POWER_NORMAL); + if (ret) + goto err; + + msleep(20); + + if (dev->warm) + goto warm; + + /* set initial register values */ + for (i = 0; i < ARRAY_SIZE(init_regs); i++) { + ret = regmap_write(dev->regmap, init_regs[i][0], + init_regs[i][1]); + if (ret) + goto err; + } + + /* set xtal related regs */ + ret = regmap_bulk_write(dev->regmap, R4D_XTALFLX1, + xtal_regs[dev->xtal_freq], 5); + if (ret) + goto err; + + ret = regmap_write_bits(dev->regmap, R10_LT1, 0x80, + dev->loopthrough ? 0x00 : 0x80); + if (ret) + goto err; + + /* clear IRQ */ + ret = regmap_write(dev->regmap, R0A_IRQ3, TDA18250_IRQ_HW_INIT); + if (ret) + goto err; + + /* start HW init */ + ret = regmap_write(dev->regmap, R2A_MSM1, 0x70); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, R2B_MSM2, 0x01); + if (ret) + goto err; + + ret = tda18250_wait_for_irq(fe, 500, 10, TDA18250_IRQ_HW_INIT); + if (ret) + goto err; + + /* tuner calibration */ + ret = regmap_write(dev->regmap, R2A_MSM1, 0x02); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, R2B_MSM2, 0x01); + if (ret) + goto err; + + ret = tda18250_wait_for_irq(fe, 500, 10, TDA18250_IRQ_CAL); + if (ret) + goto err; + + dev->warm = true; + +warm: + /* power up LNA */ + ret = regmap_write_bits(dev->regmap, R0C_AGC11, 0x80, 0x00); + if (ret) + goto err; + + return 0; +err: + dev_dbg(&client->dev, "failed=%d", ret); + return ret; +} + +static int tda18250_set_agc(struct dvb_frontend *fe) +{ + struct i2c_client *client = fe->tuner_priv; + struct tda18250_dev *dev = i2c_get_clientdata(client); + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret; + u8 utmp, utmp2; + + dev_dbg(&client->dev, "\n"); + + ret = regmap_write_bits(dev->regmap, R1F_RF_BPF, 0x87, 0x06); + if (ret) + goto err; + + utmp = ((c->frequency < 100000000) && + ((c->delivery_system == SYS_DVBC_ANNEX_A) || + (c->delivery_system == SYS_DVBC_ANNEX_C)) && + (c->bandwidth_hz == 6000000)) ? 0x80 : 0x00; + ret = regmap_write(dev->regmap, R5A_H3H5, utmp); + if (ret) + goto err; + + /* AGC1 */ + switch (c->delivery_system) { + case SYS_ATSC: + case SYS_DVBT: + case SYS_DVBT2: + utmp = 4; + break; + default: /* DVB-C/QAM */ + switch (c->bandwidth_hz) { + case 6000000: + utmp = (c->frequency < 800000000) ? 6 : 4; + break; + default: /* 7.935 and 8 MHz */ + utmp = (c->frequency < 100000000) ? 2 : 3; + break; + } + break; + } + + ret = regmap_write_bits(dev->regmap, R0C_AGC11, 0x07, utmp); + if (ret) + goto err; + + /* AGC2 */ + switch (c->delivery_system) { + case SYS_ATSC: + case SYS_DVBT: + case SYS_DVBT2: + utmp = (c->frequency < 320000000) ? 20 : 16; + utmp2 = (c->frequency < 320000000) ? 22 : 18; + break; + default: /* DVB-C/QAM */ + switch (c->bandwidth_hz) { + case 6000000: + if (c->frequency < 600000000) { + utmp = 18; + utmp2 = 22; + } else if (c->frequency < 800000000) { + utmp = 16; + utmp2 = 20; + } else { + utmp = 14; + utmp2 = 16; + } + break; + default: /* 7.935 and 8 MHz */ + utmp = (c->frequency < 320000000) ? 16 : 18; + utmp2 = (c->frequency < 320000000) ? 18 : 20; + break; + } + break; + } + ret = regmap_write_bits(dev->regmap, R58_AGC2_UP1, 0x1f, utmp2+8); + if (ret) + goto err; + ret = regmap_write_bits(dev->regmap, R13_AGC22, 0x1f, utmp); + if (ret) + goto err; + ret = regmap_write_bits(dev->regmap, R14_AGC23, 0x1f, utmp2); + if (ret) + goto err; + + switch (c->delivery_system) { + case SYS_ATSC: + case SYS_DVBT: + case SYS_DVBT2: + utmp = 98; + break; + default: /* DVB-C/QAM */ + utmp = 90; + break; + } + ret = regmap_write_bits(dev->regmap, R16_AGC25, 0xf8, utmp); + if (ret) + goto err; + + ret = regmap_write_bits(dev->regmap, R12_AGC21, 0x60, + (c->frequency > 800000000) ? 0x40 : 0x20); + if (ret) + goto err; + + /* AGC3 */ + switch (c->delivery_system) { + case SYS_ATSC: + case SYS_DVBT: + case SYS_DVBT2: + utmp = (c->frequency < 320000000) ? 5 : 7; + utmp2 = (c->frequency < 320000000) ? 10 : 12; + break; + default: /* DVB-C/QAM */ + utmp = 7; + utmp2 = 12; + break; + } + ret = regmap_write(dev->regmap, R17_AGC31, (utmp << 4) | utmp2); + if (ret) + goto err; + + /* S2D */ + switch (c->delivery_system) { + case SYS_ATSC: + case SYS_DVBT: + case SYS_DVBT2: + if (c->bandwidth_hz == 8000000) + utmp = 0x04; + else + utmp = (c->frequency < 320000000) ? 0x04 : 0x02; + break; + default: /* DVB-C/QAM */ + if (c->bandwidth_hz == 6000000) + utmp = ((c->frequency > 172544000) && + (c->frequency < 320000000)) ? 0x04 : 0x02; + else /* 7.935 and 8 MHz */ + utmp = ((c->frequency > 320000000) && + (c->frequency < 600000000)) ? 0x02 : 0x04; + break; + } + ret = regmap_write_bits(dev->regmap, R20_IR_MIX, 0x06, utmp); + if (ret) + goto err; + + switch (c->delivery_system) { + case SYS_ATSC: + case SYS_DVBT: + case SYS_DVBT2: + utmp = 0; + break; + default: /* DVB-C/QAM */ + utmp = (c->frequency < 600000000) ? 0 : 3; + break; + } + ret = regmap_write_bits(dev->regmap, R16_AGC25, 0x03, utmp); + if (ret) + goto err; + + utmp = 0x09; + switch (c->delivery_system) { + case SYS_ATSC: + case SYS_DVBT: + case SYS_DVBT2: + if (c->bandwidth_hz == 8000000) + utmp = 0x0c; + break; + default: /* DVB-C/QAM */ + utmp = 0x0c; + break; + } + ret = regmap_write_bits(dev->regmap, R0F_AGC14, 0x3f, utmp); + if (ret) + goto err; + + return 0; +err: + dev_dbg(&client->dev, "failed=%d", ret); + return ret; +} + +static int tda18250_pll_calc(struct dvb_frontend *fe, u8 *rdiv, + u8 *ndiv, u8 *icp) +{ + struct i2c_client *client = fe->tuner_priv; + struct tda18250_dev *dev = i2c_get_clientdata(client); + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret; + unsigned int uval, exp, lopd, scale; + unsigned long fvco; + + ret = regmap_read(dev->regmap, R34_MD1, &uval); + if (ret) + goto err; + + exp = (uval & 0x70) >> 4; + if (exp > 5) + exp = 0; + lopd = 1 << (exp - 1); + scale = uval & 0x0f; + fvco = lopd * scale * ((c->frequency / 1000) + dev->if_frequency); + + switch (dev->xtal_freq) { + case TDA18250_XTAL_FREQ_16MHZ: + *rdiv = 1; + *ndiv = 0; + *icp = (fvco < 6622000) ? 0x05 : 0x02; + break; + case TDA18250_XTAL_FREQ_24MHZ: + case TDA18250_XTAL_FREQ_25MHZ: + *rdiv = 3; + *ndiv = 1; + *icp = (fvco < 6622000) ? 0x05 : 0x02; + break; + case TDA18250_XTAL_FREQ_27MHZ: + if (fvco < 6643000) { + *rdiv = 2; + *ndiv = 0; + *icp = 0x05; + } else if (fvco < 6811000) { + *rdiv = 2; + *ndiv = 0; + *icp = 0x06; + } else { + *rdiv = 3; + *ndiv = 1; + *icp = 0x02; + } + break; + case TDA18250_XTAL_FREQ_30MHZ: + *rdiv = 2; + *ndiv = 0; + *icp = (fvco < 6811000) ? 0x05 : 0x02; + break; + default: + return -EINVAL; + } + + dev_dbg(&client->dev, + "lopd=%d scale=%u fvco=%lu, rdiv=%d ndiv=%d icp=%d", + lopd, scale, fvco, *rdiv, *ndiv, *icp); + return 0; +err: + return ret; +} + +static int tda18250_set_params(struct dvb_frontend *fe) +{ + struct i2c_client *client = fe->tuner_priv; + struct tda18250_dev *dev = i2c_get_clientdata(client); + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + u32 if_khz; + int ret; + unsigned int i, j; + u8 utmp; + u8 buf[3]; + + #define REG 0 + #define MASK 1 + #define DVBT_6 2 + #define DVBT_7 3 + #define DVBT_8 4 + #define DVBC_6 5 + #define DVBC_8 6 + #define ATSC 7 + + static const u8 delsys_params[][16] = { + [REG] = { 0x22, 0x23, 0x24, 0x21, 0x0d, 0x0c, 0x0f, 0x14, + 0x0e, 0x12, 0x58, 0x59, 0x1a, 0x19, 0x1e, 0x30 }, + [MASK] = { 0x77, 0xff, 0xff, 0x87, 0xf0, 0x78, 0x07, 0xe0, + 0x60, 0x0f, 0x60, 0x0f, 0x33, 0x30, 0x80, 0x06 }, + [DVBT_6] = { 0x51, 0x03, 0x83, 0x82, 0x40, 0x48, 0x01, 0xe0, + 0x60, 0x0f, 0x60, 0x05, 0x03, 0x10, 0x00, 0x04 }, + [DVBT_7] = { 0x52, 0x03, 0x85, 0x82, 0x40, 0x48, 0x01, 0xe0, + 0x60, 0x0f, 0x60, 0x05, 0x03, 0x10, 0x00, 0x04 }, + [DVBT_8] = { 0x53, 0x03, 0x87, 0x82, 0x40, 0x48, 0x06, 0xe0, + 0x60, 0x07, 0x60, 0x05, 0x03, 0x10, 0x00, 0x04 }, + [DVBC_6] = { 0x32, 0x05, 0x86, 0x82, 0x50, 0x00, 0x06, 0x60, + 0x40, 0x0e, 0x60, 0x05, 0x33, 0x10, 0x00, 0x04 }, + [DVBC_8] = { 0x53, 0x03, 0x88, 0x82, 0x50, 0x00, 0x06, 0x60, + 0x40, 0x0e, 0x60, 0x05, 0x33, 0x10, 0x00, 0x04 }, + [ATSC] = { 0x51, 0x03, 0x83, 0x82, 0x40, 0x48, 0x01, 0xe0, + 0x40, 0x0e, 0x60, 0x05, 0x03, 0x00, 0x80, 0x04 }, + }; + + dev_dbg(&client->dev, + "delivery_system=%d frequency=%u bandwidth_hz=%u", + c->delivery_system, c->frequency, c->bandwidth_hz); + + + switch (c->delivery_system) { + case SYS_ATSC: + j = ATSC; + if_khz = dev->if_atsc; + break; + case SYS_DVBT: + case SYS_DVBT2: + if (c->bandwidth_hz == 0) { + ret = -EINVAL; + goto err; + } else if (c->bandwidth_hz <= 6000000) { + j = DVBT_6; + if_khz = dev->if_dvbt_6; + } else if (c->bandwidth_hz <= 7000000) { + j = DVBT_7; + if_khz = dev->if_dvbt_7; + } else if (c->bandwidth_hz <= 8000000) { + j = DVBT_8; + if_khz = dev->if_dvbt_8; + } else { + ret = -EINVAL; + goto err; + } + break; + case SYS_DVBC_ANNEX_A: + case SYS_DVBC_ANNEX_C: + if (c->bandwidth_hz == 0) { + ret = -EINVAL; + goto err; + } else if (c->bandwidth_hz <= 6000000) { + j = DVBC_6; + if_khz = dev->if_dvbc_6; + } else if (c->bandwidth_hz <= 8000000) { + j = DVBC_8; + if_khz = dev->if_dvbc_8; + } else { + ret = -EINVAL; + goto err; + } + break; + default: + ret = -EINVAL; + dev_err(&client->dev, "unsupported delivery system=%d", + c->delivery_system); + goto err; + } + + /* set delivery system dependent registers */ + for (i = 0; i < 16; i++) { + ret = regmap_write_bits(dev->regmap, delsys_params[REG][i], + delsys_params[MASK][i], delsys_params[j][i]); + if (ret) + goto err; + } + + /* set IF if needed */ + if (dev->if_frequency != if_khz) { + utmp = DIV_ROUND_CLOSEST(if_khz, 50); + ret = regmap_write(dev->regmap, R26_IF, utmp); + if (ret) + goto err; + dev->if_frequency = if_khz; + dev_dbg(&client->dev, "set IF=%u kHz", if_khz); + + } + + ret = tda18250_set_agc(fe); + if (ret) + goto err; + + ret = regmap_write_bits(dev->regmap, R1A_AGCK, 0x03, 0x01); + if (ret) + goto err; + + ret = regmap_write_bits(dev->regmap, R14_AGC23, 0x40, 0x00); + if (ret) + goto err; + + /* set frequency */ + buf[0] = ((c->frequency / 1000) >> 16) & 0xff; + buf[1] = ((c->frequency / 1000) >> 8) & 0xff; + buf[2] = ((c->frequency / 1000) >> 0) & 0xff; + ret = regmap_bulk_write(dev->regmap, R27_RF1, buf, 3); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, R0A_IRQ3, TDA18250_IRQ_TUNE); + if (ret) + goto err; + + /* initial tune */ + ret = regmap_write(dev->regmap, R2A_MSM1, 0x01); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, R2B_MSM2, 0x01); + if (ret) + goto err; + + ret = tda18250_wait_for_irq(fe, 500, 10, TDA18250_IRQ_TUNE); + if (ret) + goto err; + + /* calc ndiv and rdiv */ + ret = tda18250_pll_calc(fe, &buf[0], &buf[1], &buf[2]); + if (ret) + goto err; + + ret = regmap_write_bits(dev->regmap, R4F_XTALFLX3, 0xe0, + (buf[0] << 6) | (buf[1] << 5)); + if (ret) + goto err; + + /* clear IRQ */ + ret = regmap_write(dev->regmap, R0A_IRQ3, TDA18250_IRQ_TUNE); + if (ret) + goto err; + + ret = regmap_write_bits(dev->regmap, R46_CPUMP, 0x07, 0x00); + if (ret) + goto err; + + ret = regmap_write_bits(dev->regmap, R39_SD5, 0x03, 0x00); + if (ret) + goto err; + + /* tune again */ + ret = regmap_write(dev->regmap, R2A_MSM1, 0x01); /* tune */ + if (ret) + goto err; + + ret = regmap_write(dev->regmap, R2B_MSM2, 0x01); /* go */ + if (ret) + goto err; + + ret = tda18250_wait_for_irq(fe, 500, 10, TDA18250_IRQ_TUNE); + if (ret) + goto err; + + /* pll locking */ + msleep(20); + + ret = regmap_write_bits(dev->regmap, R2B_MSM2, 0x04, 0x04); + if (ret) + goto err; + + msleep(20); + + /* restore AGCK */ + ret = regmap_write_bits(dev->regmap, R1A_AGCK, 0x03, 0x03); + if (ret) + goto err; + + ret = regmap_write_bits(dev->regmap, R14_AGC23, 0x40, 0x40); + if (ret) + goto err; + + /* charge pump */ + ret = regmap_write_bits(dev->regmap, R46_CPUMP, 0x07, buf[2]); + + return 0; +err: + return ret; +} + +static int tda18250_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) +{ + struct i2c_client *client = fe->tuner_priv; + struct tda18250_dev *dev = i2c_get_clientdata(client); + + *frequency = dev->if_frequency * 1000; + return 0; +} + +static int tda18250_sleep(struct dvb_frontend *fe) +{ + struct i2c_client *client = fe->tuner_priv; + struct tda18250_dev *dev = i2c_get_clientdata(client); + int ret; + + dev_dbg(&client->dev, "\n"); + + /* power down LNA */ + ret = regmap_write_bits(dev->regmap, R0C_AGC11, 0x80, 0x00); + if (ret) + return ret; + + /* set if freq to 0 in order to make sure it's set after wake up */ + dev->if_frequency = 0; + + ret = tda18250_power_control(fe, TDA18250_POWER_STANDBY); + return ret; +} + +static const struct dvb_tuner_ops tda18250_ops = { + .info = { + .name = "NXP TDA18250", + .frequency_min = 42000000, + .frequency_max = 870000000, + }, + + .init = tda18250_init, + .set_params = tda18250_set_params, + .get_if_frequency = tda18250_get_if_frequency, + .sleep = tda18250_sleep, +}; + +static int tda18250_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct tda18250_config *cfg = client->dev.platform_data; + struct dvb_frontend *fe = cfg->fe; + struct tda18250_dev *dev; + int ret; + unsigned char chip_id[3]; + + /* some registers are always read from HW */ + static const struct regmap_range tda18250_yes_ranges[] = { + regmap_reg_range(R05_POWER1, R0B_IRQ4), + regmap_reg_range(R21_IF_AGC, R21_IF_AGC), + regmap_reg_range(R2A_MSM1, R2B_MSM2), + regmap_reg_range(R2F_RSSI1, R31_IRQ_CTRL), + }; + + static const struct regmap_access_table tda18250_volatile_table = { + .yes_ranges = tda18250_yes_ranges, + .n_yes_ranges = ARRAY_SIZE(tda18250_yes_ranges), + }; + + static const struct regmap_config tda18250_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = TDA18250_NUM_REGS - 1, + .volatile_table = &tda18250_volatile_table, + }; + + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) { + ret = -ENOMEM; + goto err; + } + + i2c_set_clientdata(client, dev); + + dev->fe = cfg->fe; + dev->loopthrough = cfg->loopthrough; + if (cfg->xtal_freq < TDA18250_XTAL_FREQ_MAX) { + dev->xtal_freq = cfg->xtal_freq; + } else { + ret = -EINVAL; + dev_err(&client->dev, "xtal_freq invalid=%d", cfg->xtal_freq); + goto err_kfree; + } + dev->if_dvbt_6 = cfg->if_dvbt_6; + dev->if_dvbt_7 = cfg->if_dvbt_7; + dev->if_dvbt_8 = cfg->if_dvbt_8; + dev->if_dvbc_6 = cfg->if_dvbc_6; + dev->if_dvbc_8 = cfg->if_dvbc_8; + dev->if_atsc = cfg->if_atsc; + + dev->if_frequency = 0; + dev->warm = false; + + dev->regmap = devm_regmap_init_i2c(client, &tda18250_regmap_config); + if (IS_ERR(dev->regmap)) { + ret = PTR_ERR(dev->regmap); + goto err_kfree; + } + + /* read the three chip ID registers */ + regmap_bulk_read(dev->regmap, R00_ID1, &chip_id, 3); + dev_dbg(&client->dev, "chip_id=%02x:%02x:%02x", + chip_id[0], chip_id[1], chip_id[2]); + + switch (chip_id[0]) { + case 0xc7: + dev->slave = false; + break; + case 0x47: + dev->slave = true; + break; + default: + ret = -ENODEV; + goto err_kfree; + } + + if (chip_id[1] != 0x4a) { + ret = -ENODEV; + goto err_kfree; + } + + switch (chip_id[2]) { + case 0x20: + dev_info(&client->dev, + "NXP TDA18250AHN/%s successfully identified", + dev->slave ? "S" : "M"); + break; + case 0x21: + dev_info(&client->dev, + "NXP TDA18250BHN/%s successfully identified", + dev->slave ? "S" : "M"); + break; + default: + ret = -ENODEV; + goto err_kfree; + } + + fe->tuner_priv = client; + memcpy(&fe->ops.tuner_ops, &tda18250_ops, + sizeof(struct dvb_tuner_ops)); + + /* put the tuner in standby */ + tda18250_power_control(fe, TDA18250_POWER_STANDBY); + + return 0; +err_kfree: + kfree(dev); +err: + dev_dbg(&client->dev, "failed=%d", ret); + return ret; +} + +static int tda18250_remove(struct i2c_client *client) +{ + struct tda18250_dev *dev = i2c_get_clientdata(client); + struct dvb_frontend *fe = dev->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 tda18250_id_table[] = { + {"tda18250", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, tda18250_id_table); + +static struct i2c_driver tda18250_driver = { + .driver = { + .name = "tda18250", + }, + .probe = tda18250_probe, + .remove = tda18250_remove, + .id_table = tda18250_id_table, +}; + +module_i2c_driver(tda18250_driver); + +MODULE_DESCRIPTION("NXP TDA18250 silicon tuner driver"); +MODULE_AUTHOR("Olli Salonen <olli.salo...@iki.fi>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/tuners/tda18250.h b/drivers/media/tuners/tda18250.h new file mode 100644 index 0000000..fb56906 --- /dev/null +++ b/drivers/media/tuners/tda18250.h @@ -0,0 +1,51 @@ +/* + * NXP TDA18250BHN silicon tuner driver + * + * Copyright (C) 2017 Olli Salonen <olli.salo...@iki.fi> + * + * 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 TDA18250_H +#define TDA18250_H + +#include <linux/kconfig.h> +#include <media/media-device.h> +#include "dvb_frontend.h" + +#define TDA18250_XTAL_FREQ_16MHZ 0 +#define TDA18250_XTAL_FREQ_24MHZ 1 +#define TDA18250_XTAL_FREQ_25MHZ 2 +#define TDA18250_XTAL_FREQ_27MHZ 3 +#define TDA18250_XTAL_FREQ_30MHZ 4 +#define TDA18250_XTAL_FREQ_MAX 5 + +struct tda18250_config { + u16 if_dvbt_6; + u16 if_dvbt_7; + u16 if_dvbt_8; + u16 if_dvbc_6; + u16 if_dvbc_8; + u16 if_atsc; + u8 xtal_freq; + bool loopthrough; + + /* + * frontend + */ + struct dvb_frontend *fe; + +#if defined(CONFIG_MEDIA_CONTROLLER) + struct media_device *mdev; +#endif +}; + +#endif diff --git a/drivers/media/tuners/tda18250_priv.h b/drivers/media/tuners/tda18250_priv.h new file mode 100644 index 0000000..4a6f801 --- /dev/null +++ b/drivers/media/tuners/tda18250_priv.h @@ -0,0 +1,145 @@ +/* + * NXP TDA18250BHN silicon tuner driver + * + * Copyright (C) 2017 Olli Salonen <olli.salo...@iki.fi> + * + * 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 TDA18250_PRIV_H +#define TDA18250_PRIV_H + +#include "tda18250.h" + +#define R00_ID1 0x00 /* ID byte 1 */ +#define R01_ID2 0x01 /* ID byte 2 */ +#define R02_ID3 0x02 /* ID byte 3 */ +#define R03_THERMO1 0x03 /* Thermo byte 1 */ +#define R04_THERMO2 0x04 /* Thermo byte 2 */ +#define R05_POWER1 0x05 /* Power byte 1 */ +#define R06_POWER2 0x06 /* Power byte 2 */ +#define R07_GPIO 0x07 /* GPIO */ +#define R08_IRQ1 0x08 /* IRQ */ +#define R09_IRQ2 0x09 /* IRQ */ +#define R0A_IRQ3 0x0a /* IRQ */ +#define R0B_IRQ4 0x0b /* IRQ */ +#define R0C_AGC11 0x0c /* AGC1 byte 1 */ +#define R0D_AGC12 0x0d /* AGC1 byte 2 */ +#define R0E_AGC13 0x0e /* AGC1 byte 3 */ +#define R0F_AGC14 0x0f /* AGC1 byte 4 */ +#define R10_LT1 0x10 /* LT byte 1 */ +#define R11_LT2 0x11 /* LT byte 2 */ +#define R12_AGC21 0x12 /* AGC2 byte 1 */ +#define R13_AGC22 0x13 /* AGC2 byte 2 */ +#define R14_AGC23 0x14 /* AGC2 byte 3 */ +#define R15_AGC24 0x15 /* AGC2 byte 4 */ +#define R16_AGC25 0x16 /* AGC2 byte 5 */ +#define R17_AGC31 0x17 /* AGC3 byte 1 */ +#define R18_AGC32 0x18 /* AGC3 byte 2 */ +#define R19_AGC33 0x19 /* AGC3 byte 3 */ +#define R1A_AGCK 0x1a +#define R1B_GAIN1 0x1b +#define R1C_GAIN2 0x1c +#define R1D_GAIN3 0x1d +#define R1E_WI_FI 0x1e /* Wireless Filter */ +#define R1F_RF_BPF 0x1f /* RF Band Pass Filter */ +#define R20_IR_MIX 0x20 /* IR Mixer */ +#define R21_IF_AGC 0x21 +#define R22_IF1 0x22 /* IF byte 1 */ +#define R23_IF2 0x23 /* IF byte 2 */ +#define R24_IF3 0x24 /* IF byte 3 */ +#define R25_REF 0x25 /* reference byte */ +#define R26_IF 0x26 /* IF frequency */ +#define R27_RF1 0x27 /* RF frequency byte 1 */ +#define R28_RF2 0x28 /* RF frequency byte 2 */ +#define R29_RF3 0x29 /* RF frequency byte 3 */ +#define R2A_MSM1 0x2a +#define R2B_MSM2 0x2b +#define R2C_PS1 0x2c /* power saving mode byte 1 */ +#define R2D_PS2 0x2d /* power saving mode byte 2 */ +#define R2E_PS3 0x2e /* power saving mode byte 3 */ +#define R2F_RSSI1 0x2f +#define R30_RSSI2 0x30 +#define R31_IRQ_CTRL 0x31 +#define R32_DUMMY 0x32 +#define R33_TEST 0x33 +#define R34_MD1 0x34 +#define R35_SD1 0x35 +#define R36_SD2 0x36 +#define R37_SD3 0x37 +#define R38_SD4 0x38 +#define R39_SD5 0x39 +#define R3A_SD_TEST 0x3a +#define R3B_REGU 0x3b +#define R3C_RCCAL1 0x3c +#define R3D_RCCAL2 0x3d +#define R3E_IRCAL1 0x3e +#define R3F_IRCAL2 0x3f +#define R40_IRCAL3 0x40 +#define R41_IRCAL4 0x41 +#define R42_IRCAL5 0x42 +#define R43_PD1 0x43 /* power down byte 1 */ +#define R44_PD2 0x44 /* power down byte 2 */ +#define R45_PD 0x45 /* power down */ +#define R46_CPUMP 0x46 /* charge pump */ +#define R47_LNAPOL 0x47 /* LNA polar casc */ +#define R48_SMOOTH1 0x48 /* smooth test byte 1 */ +#define R49_SMOOTH2 0x49 /* smooth test byte 2 */ +#define R4A_SMOOTH3 0x4a /* smooth test byte 3 */ +#define R4B_XTALOSC1 0x4b +#define R4C_XTALOSC2 0x4c +#define R4D_XTALFLX1 0x4d +#define R4E_XTALFLX2 0x4e +#define R4F_XTALFLX3 0x4f +#define R50_XTALFLX4 0x50 +#define R51_XTALFLX5 0x51 +#define R52_IRLOOP0 0x52 +#define R53_IRLOOP1 0x53 +#define R54_IRLOOP2 0x54 +#define R55_IRLOOP3 0x55 +#define R56_IRLOOP4 0x56 +#define R57_PLL_LOG 0x57 +#define R58_AGC2_UP1 0x58 +#define R59_AGC2_UP2 0x59 +#define R5A_H3H5 0x5a +#define R5B_AGC_AUTO 0x5b +#define R5C_AGC_DEBUG 0x5c + +#define TDA18250_NUM_REGS 93 + +#define TDA18250_POWER_STANDBY 0 +#define TDA18250_POWER_NORMAL 1 + +#define TDA18250_IRQ_CAL 0x81 +#define TDA18250_IRQ_HW_INIT 0x82 +#define TDA18250_IRQ_TUNE 0x88 + +struct tda18250_dev { + struct mutex i2c_mutex; + struct dvb_frontend *fe; + struct i2c_adapter *i2c; + struct regmap *regmap; + u8 xtal_freq; + /* IF in kHz */ + u16 if_dvbt_6; + u16 if_dvbt_7; + u16 if_dvbt_8; + u16 if_dvbc_6; + u16 if_dvbc_8; + u16 if_atsc; + u16 if_frequency; + bool slave; + bool loopthrough; + bool warm; + u8 regs[TDA18250_NUM_REGS]; +}; + +#endif -- 2.7.4
