From 27cfc85e3dae187a470f7aa54123689a487970f2 Mon Sep 17 00:00:00 2001 From: Antti Palosaari Date: Thu, 7 Apr 2011 16:27:43 -0300 Subject: [PATCH] [media] Sony CXD2820R DVB-T/T2/C demodulator driver It is very first DVB-T2 Linux driver! Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/Kconfig | 7 + drivers/media/dvb/frontends/Makefile | 2 + drivers/media/dvb/frontends/cxd2820r.c | 886 ++++++++++++++++++++ drivers/media/dvb/frontends/cxd2820r.h | 118 +++ drivers/media/dvb/frontends/cxd2820r_c.c | 336 ++++++++ drivers/media/dvb/frontends/cxd2820r_priv.h | 77 ++ drivers/media/dvb/frontends/cxd2820r_t.c | 447 ++++++++++ drivers/media/dvb/frontends/cxd2820r_t2.c | 421 ++++++++++ 8 files changed, 2294 insertions(+) create mode 100644 drivers/media/dvb/frontends/cxd2820r.c create mode 100644 drivers/media/dvb/frontends/cxd2820r.h create mode 100644 drivers/media/dvb/frontends/cxd2820r_c.c create mode 100644 drivers/media/dvb/frontends/cxd2820r_priv.h create mode 100644 drivers/media/dvb/frontends/cxd2820r_t.c create mode 100644 drivers/media/dvb/frontends/cxd2820r_t2.c diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig index 7ceb02d95ecf..44b816f2601e 100644 --- a/drivers/media/dvb/frontends/Kconfig +++ b/drivers/media/dvb/frontends/Kconfig @@ -383,6 +383,13 @@ config DVB_STV0367 help A DVB-T/C tuner module. Say Y when you want to support this frontend. +config DVB_CXD2820R + tristate "Sony CXD2820R" + depends on DVB_CORE && I2C + default m if DVB_FE_CUSTOMISE + help + Say Y when you want to support this frontend. + comment "DVB-C (cable) frontends" depends on DVB_CORE diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile index 6d5192935889..adec1a3f6291 100644 --- a/drivers/media/dvb/frontends/Makefile +++ b/drivers/media/dvb/frontends/Makefile @@ -86,3 +86,5 @@ obj-$(CONFIG_DVB_MB86A16) += mb86a16.o obj-$(CONFIG_DVB_MB86A20S) += mb86a20s.o obj-$(CONFIG_DVB_IX2505V) += ix2505v.o obj-$(CONFIG_DVB_STV0367) += stv0367.o +obj-$(CONFIG_DVB_CXD2820R) += cxd2820r.o + diff --git a/drivers/media/dvb/frontends/cxd2820r.c b/drivers/media/dvb/frontends/cxd2820r.c new file mode 100644 index 000000000000..b58f92c75116 --- /dev/null +++ b/drivers/media/dvb/frontends/cxd2820r.c @@ -0,0 +1,886 @@ +/* + * Sony CXD2820R demodulator driver + * + * Copyright (C) 2010 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 "cxd2820r_priv.h" + +int cxd2820r_debug; +module_param_named(debug, cxd2820r_debug, int, 0644); +MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); + +/* TODO: temporary hack, will be removed later when there is app support */ +unsigned int cxd2820r_dvbt2_freq[5]; +int cxd2820r_dvbt2_count; +module_param_array_named(dvbt2_freq, cxd2820r_dvbt2_freq, int, + &cxd2820r_dvbt2_count, 0644); +MODULE_PARM_DESC(dvbt2_freq, "RF frequencies forced to DVB-T2 (unit Hz)"); + +/* write multiple registers */ +static int cxd2820r_wr_regs_i2c(struct cxd2820r_priv *priv, u8 i2c, u8 reg, + u8 *val, int len) +{ + int ret; + u8 buf[len+1]; + struct i2c_msg msg[1] = { + { + .addr = i2c, + .flags = 0, + .len = sizeof(buf), + .buf = buf, + } + }; + + buf[0] = reg; + memcpy(&buf[1], val, len); + + ret = i2c_transfer(priv->i2c, msg, 1); + if (ret == 1) { + ret = 0; + } else { + warn("i2c wr failed ret:%d reg:%02x len:%d", ret, reg, len); + ret = -EREMOTEIO; + } + return ret; +} + +/* read multiple registers */ +static int cxd2820r_rd_regs_i2c(struct cxd2820r_priv *priv, u8 i2c, u8 reg, + u8 *val, int len) +{ + int ret; + u8 buf[len]; + struct i2c_msg msg[2] = { + { + .addr = i2c, + .flags = 0, + .len = 1, + .buf = ®, + }, { + .addr = i2c, + .flags = I2C_M_RD, + .len = sizeof(buf), + .buf = buf, + } + }; + + ret = i2c_transfer(priv->i2c, msg, 2); + if (ret == 2) { + memcpy(val, buf, len); + ret = 0; + } else { + warn("i2c rd failed ret:%d reg:%02x len:%d", ret, reg, len); + ret = -EREMOTEIO; + } + + return ret; +} + +/* write multiple registers */ +static int cxd2820r_wr_regs(struct cxd2820r_priv *priv, u32 reginfo, u8 *val, + int len) +{ + int ret; + u8 i2c_addr; + u8 reg = (reginfo >> 0) & 0xff; + u8 bank = (reginfo >> 8) & 0xff; + u8 i2c = (reginfo >> 16) & 0x01; + + /* select I2C */ + if (i2c) + i2c_addr = priv->cfg.i2c_address | (1 << 1); /* DVB-C */ + else + i2c_addr = priv->cfg.i2c_address; /* DVB-T/T2 */ + + /* switch bank if needed */ + if (bank != priv->bank[i2c]) { + ret = cxd2820r_wr_regs_i2c(priv, i2c_addr, 0x00, &bank, 1); + if (ret) + return ret; + priv->bank[i2c] = bank; + } + return cxd2820r_wr_regs_i2c(priv, i2c_addr, reg, val, len); +} + +/* read multiple registers */ +static int cxd2820r_rd_regs(struct cxd2820r_priv *priv, u32 reginfo, u8 *val, + int len) +{ + int ret; + u8 i2c_addr; + u8 reg = (reginfo >> 0) & 0xff; + u8 bank = (reginfo >> 8) & 0xff; + u8 i2c = (reginfo >> 16) & 0x01; + + /* select I2C */ + if (i2c) + i2c_addr = priv->cfg.i2c_address | (1 << 1); /* DVB-C */ + else + i2c_addr = priv->cfg.i2c_address; /* DVB-T/T2 */ + + /* switch bank if needed */ + if (bank != priv->bank[i2c]) { + ret = cxd2820r_wr_regs_i2c(priv, i2c_addr, 0x00, &bank, 1); + if (ret) + return ret; + priv->bank[i2c] = bank; + } + return cxd2820r_rd_regs_i2c(priv, i2c_addr, reg, val, len); +} + +/* write single register */ +static int cxd2820r_wr_reg(struct cxd2820r_priv *priv, u32 reg, u8 val) +{ + return cxd2820r_wr_regs(priv, reg, &val, 1); +} + +/* read single register */ +static int cxd2820r_rd_reg(struct cxd2820r_priv *priv, u32 reg, u8 *val) +{ + return cxd2820r_rd_regs(priv, reg, val, 1); +} + +/* write single register with mask */ +static int cxd2820r_wr_reg_mask(struct cxd2820r_priv *priv, u32 reg, u8 val, + u8 mask) +{ + int ret; + u8 tmp; + + /* no need for read if whole reg is written */ + if (mask != 0xff) { + ret = cxd2820r_rd_reg(priv, reg, &tmp); + if (ret) + return ret; + + val &= mask; + tmp &= ~mask; + val |= tmp; + } + + return cxd2820r_wr_reg(priv, reg, val); +} + +static int cxd2820r_gpio(struct dvb_frontend *fe) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret, i; + u8 *gpio, tmp0, tmp1; + dbg("%s: delsys=%d", __func__, fe->dtv_property_cache.delivery_system); + + switch (fe->dtv_property_cache.delivery_system) { + case SYS_DVBT: + gpio = priv->cfg.gpio_dvbt; + break; + case SYS_DVBT2: + gpio = priv->cfg.gpio_dvbt2; + break; + case SYS_DVBC_ANNEX_AC: + gpio = priv->cfg.gpio_dvbc; + break; + default: + ret = -EINVAL; + goto error; + } + + /* update GPIOs only when needed */ + if (!memcmp(gpio, priv->gpio, sizeof(priv->gpio))) + return 0; + + tmp0 = 0x00; + tmp1 = 0x00; + for (i = 0; i < sizeof(priv->gpio); i++) { + /* enable / disable */ + if (gpio[i] & CXD2820R_GPIO_E) + tmp0 |= (2 << 6) >> (2 * i); + else + tmp0 |= (1 << 6) >> (2 * i); + + /* input / output */ + if (gpio[i] & CXD2820R_GPIO_I) + tmp1 |= (1 << (3 + i)); + else + tmp1 |= (0 << (3 + i)); + + /* high / low */ + if (gpio[i] & CXD2820R_GPIO_H) + tmp1 |= (1 << (0 + i)); + else + tmp1 |= (0 << (0 + i)); + + dbg("%s: GPIO i=%d %02x %02x", __func__, i, tmp0, tmp1); + } + + dbg("%s: wr gpio=%02x %02x", __func__, tmp0, tmp1); + + /* write bits [7:2] */ + ret = cxd2820r_wr_reg_mask(priv, 0x00089, tmp0, 0xfc); + if (ret) + goto error; + + /* write bits [5:0] */ + ret = cxd2820r_wr_reg_mask(priv, 0x0008e, tmp1, 0x3f); + if (ret) + goto error; + + memcpy(priv->gpio, gpio, sizeof(priv->gpio)); + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +/* lock FE */ +static int cxd2820r_lock(struct cxd2820r_priv *priv, int active_fe) +{ + int ret = 0; + dbg("%s: active_fe=%d", __func__, active_fe); + + mutex_lock(&priv->fe_lock); + + /* -1=NONE, 0=DVB-T/T2, 1=DVB-C */ + if (priv->active_fe == active_fe) + ; + else if (priv->active_fe == -1) + priv->active_fe = active_fe; + else + ret = -EBUSY; + + mutex_unlock(&priv->fe_lock); + + return ret; +} + +/* unlock FE */ +static void cxd2820r_unlock(struct cxd2820r_priv *priv, int active_fe) +{ + dbg("%s: active_fe=%d", __func__, active_fe); + + mutex_lock(&priv->fe_lock); + + /* -1=NONE, 0=DVB-T/T2, 1=DVB-C */ + if (priv->active_fe == active_fe) + priv->active_fe = -1; + + mutex_unlock(&priv->fe_lock); + + return; +} + +/* 64 bit div with round closest, like DIV_ROUND_CLOSEST but 64 bit */ +static u32 cxd2820r_div_u64_round_closest(u64 dividend, u32 divisor) +{ + return div_u64(dividend + (divisor / 2), divisor); +} + +/* TODO: ... */ +#include "cxd2820r_t.c" +#include "cxd2820r_c.c" +#include "cxd2820r_t2.c" + +static int cxd2820r_set_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret; + dbg("%s: delsys=%d", __func__, fe->dtv_property_cache.delivery_system); + + if (fe->ops.info.type == FE_OFDM) { + /* DVB-T/T2 */ + ret = cxd2820r_lock(priv, 0); + if (ret) + return ret; + + switch (priv->delivery_system) { + case SYS_UNDEFINED: + if (c->delivery_system == SYS_DVBT) { + /* SLEEP => DVB-T */ + ret = cxd2820r_set_frontend_t(fe, p); + } else { + /* SLEEP => DVB-T2 */ + ret = cxd2820r_set_frontend_t2(fe, p); + } + break; + case SYS_DVBT: + if (c->delivery_system == SYS_DVBT) { + /* DVB-T => DVB-T */ + ret = cxd2820r_set_frontend_t(fe, p); + } else if (c->delivery_system == SYS_DVBT2) { + /* DVB-T => DVB-T2 */ + ret = cxd2820r_sleep_t(fe); + ret = cxd2820r_set_frontend_t2(fe, p); + } + break; + case SYS_DVBT2: + if (c->delivery_system == SYS_DVBT2) { + /* DVB-T2 => DVB-T2 */ + ret = cxd2820r_set_frontend_t2(fe, p); + } else if (c->delivery_system == SYS_DVBT) { + /* DVB-T2 => DVB-T */ + ret = cxd2820r_sleep_t2(fe); + ret = cxd2820r_set_frontend_t(fe, p); + } + break; + default: + dbg("%s: error state=%d", __func__, + priv->delivery_system); + ret = -EINVAL; + } + } else { + /* DVB-C */ + ret = cxd2820r_lock(priv, 1); + if (ret) + return ret; + + ret = cxd2820r_set_frontend_c(fe, p); + } + + return ret; +} + +static int cxd2820r_read_status(struct dvb_frontend *fe, fe_status_t *status) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + dbg("%s: delsys=%d", __func__, fe->dtv_property_cache.delivery_system); + + if (fe->ops.info.type == FE_OFDM) { + /* DVB-T/T2 */ + ret = cxd2820r_lock(priv, 0); + if (ret) + return ret; + + switch (fe->dtv_property_cache.delivery_system) { + case SYS_DVBT: + ret = cxd2820r_read_status_t(fe, status); + break; + case SYS_DVBT2: + ret = cxd2820r_read_status_t2(fe, status); + break; + default: + ret = -EINVAL; + } + } else { + /* DVB-C */ + ret = cxd2820r_lock(priv, 1); + if (ret) + return ret; + + ret = cxd2820r_read_status_c(fe, status); + } + + return ret; +} + +static int cxd2820r_get_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + dbg("%s: delsys=%d", __func__, fe->dtv_property_cache.delivery_system); + + if (fe->ops.info.type == FE_OFDM) { + /* DVB-T/T2 */ + ret = cxd2820r_lock(priv, 0); + if (ret) + return ret; + + switch (fe->dtv_property_cache.delivery_system) { + case SYS_DVBT: + ret = cxd2820r_get_frontend_t(fe, p); + break; + case SYS_DVBT2: + ret = cxd2820r_get_frontend_t2(fe, p); + break; + default: + ret = -EINVAL; + } + } else { + /* DVB-C */ + ret = cxd2820r_lock(priv, 1); + if (ret) + return ret; + + ret = cxd2820r_get_frontend_c(fe, p); + } + + return ret; +} + +static int cxd2820r_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + dbg("%s: delsys=%d", __func__, fe->dtv_property_cache.delivery_system); + + if (fe->ops.info.type == FE_OFDM) { + /* DVB-T/T2 */ + ret = cxd2820r_lock(priv, 0); + if (ret) + return ret; + + switch (fe->dtv_property_cache.delivery_system) { + case SYS_DVBT: + ret = cxd2820r_read_ber_t(fe, ber); + break; + case SYS_DVBT2: + ret = cxd2820r_read_ber_t2(fe, ber); + break; + default: + ret = -EINVAL; + } + } else { + /* DVB-C */ + ret = cxd2820r_lock(priv, 1); + if (ret) + return ret; + + ret = cxd2820r_read_ber_c(fe, ber); + } + + return ret; +} + +static int cxd2820r_read_signal_strength(struct dvb_frontend *fe, u16 *strength) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + dbg("%s: delsys=%d", __func__, fe->dtv_property_cache.delivery_system); + + if (fe->ops.info.type == FE_OFDM) { + /* DVB-T/T2 */ + ret = cxd2820r_lock(priv, 0); + if (ret) + return ret; + + switch (fe->dtv_property_cache.delivery_system) { + case SYS_DVBT: + ret = cxd2820r_read_signal_strength_t(fe, strength); + break; + case SYS_DVBT2: + ret = cxd2820r_read_signal_strength_t2(fe, strength); + break; + default: + ret = -EINVAL; + } + } else { + /* DVB-C */ + ret = cxd2820r_lock(priv, 1); + if (ret) + return ret; + + ret = cxd2820r_read_signal_strength_c(fe, strength); + } + + return ret; +} + +static int cxd2820r_read_snr(struct dvb_frontend *fe, u16 *snr) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + dbg("%s: delsys=%d", __func__, fe->dtv_property_cache.delivery_system); + + if (fe->ops.info.type == FE_OFDM) { + /* DVB-T/T2 */ + ret = cxd2820r_lock(priv, 0); + if (ret) + return ret; + + switch (fe->dtv_property_cache.delivery_system) { + case SYS_DVBT: + ret = cxd2820r_read_snr_t(fe, snr); + break; + case SYS_DVBT2: + ret = cxd2820r_read_snr_t2(fe, snr); + break; + default: + ret = -EINVAL; + } + } else { + /* DVB-C */ + ret = cxd2820r_lock(priv, 1); + if (ret) + return ret; + + ret = cxd2820r_read_snr_c(fe, snr); + } + + return ret; +} + +static int cxd2820r_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + dbg("%s: delsys=%d", __func__, fe->dtv_property_cache.delivery_system); + + if (fe->ops.info.type == FE_OFDM) { + /* DVB-T/T2 */ + ret = cxd2820r_lock(priv, 0); + if (ret) + return ret; + + switch (fe->dtv_property_cache.delivery_system) { + case SYS_DVBT: + ret = cxd2820r_read_ucblocks_t(fe, ucblocks); + break; + case SYS_DVBT2: + ret = cxd2820r_read_ucblocks_t2(fe, ucblocks); + break; + default: + ret = -EINVAL; + } + } else { + /* DVB-C */ + ret = cxd2820r_lock(priv, 1); + if (ret) + return ret; + + ret = cxd2820r_read_ucblocks_c(fe, ucblocks); + } + + return ret; +} + +static int cxd2820r_init(struct dvb_frontend *fe) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + dbg("%s: delsys=%d", __func__, fe->dtv_property_cache.delivery_system); + + priv->delivery_system = SYS_UNDEFINED; + /* delivery system is unknown at that (init) phase */ + + if (fe->ops.info.type == FE_OFDM) { + /* DVB-T/T2 */ + ret = cxd2820r_lock(priv, 0); + if (ret) + return ret; + + ret = cxd2820r_init_t(fe); + } else { + /* DVB-C */ + ret = cxd2820r_lock(priv, 1); + if (ret) + return ret; + + ret = cxd2820r_init_c(fe); + } + + return ret; +} + +static int cxd2820r_sleep(struct dvb_frontend *fe) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + dbg("%s: delsys=%d", __func__, fe->dtv_property_cache.delivery_system); + + if (fe->ops.info.type == FE_OFDM) { + /* DVB-T/T2 */ + ret = cxd2820r_lock(priv, 0); + if (ret) + return ret; + + switch (fe->dtv_property_cache.delivery_system) { + case SYS_DVBT: + ret = cxd2820r_sleep_t(fe); + break; + case SYS_DVBT2: + ret = cxd2820r_sleep_t2(fe); + break; + default: + ret = -EINVAL; + } + + cxd2820r_unlock(priv, 0); + } else { + /* DVB-C */ + ret = cxd2820r_lock(priv, 1); + if (ret) + return ret; + + ret = cxd2820r_sleep_c(fe); + + cxd2820r_unlock(priv, 1); + } + + return ret; +} + +static int cxd2820r_get_tune_settings(struct dvb_frontend *fe, + struct dvb_frontend_tune_settings *s) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret, i; + unsigned int rf1, rf2; + dbg("%s: delsys=%d", __func__, fe->dtv_property_cache.delivery_system); + + if (fe->ops.info.type == FE_OFDM) { + /* DVB-T/T2 */ + ret = cxd2820r_lock(priv, 0); + if (ret) + return ret; + + /* TODO: hack! This will be removed later when there is better + * app support for DVB-T2... */ + + /* Hz => MHz */ + rf1 = DIV_ROUND_CLOSEST(fe->dtv_property_cache.frequency, + 1000000); + for (i = 0; i < cxd2820r_dvbt2_count; i++) { + if (cxd2820r_dvbt2_freq[i] > 100000000) { + /* Hz => MHz */ + rf2 = DIV_ROUND_CLOSEST(cxd2820r_dvbt2_freq[i], + 1000000); + } else if (cxd2820r_dvbt2_freq[i] > 100000) { + /* kHz => MHz */ + rf2 = DIV_ROUND_CLOSEST(cxd2820r_dvbt2_freq[i], + 1000); + } else { + rf2 = cxd2820r_dvbt2_freq[i]; + } + + dbg("%s: rf1=%d rf2=%d", __func__, rf1, rf2); + + if (rf1 == rf2) { + dbg("%s: forcing DVB-T2, frequency=%d", + __func__, fe->dtv_property_cache.frequency); + fe->dtv_property_cache.delivery_system = + SYS_DVBT2; + } + } + + switch (fe->dtv_property_cache.delivery_system) { + case SYS_DVBT: + ret = cxd2820r_get_tune_settings_t(fe, s); + break; + case SYS_DVBT2: + ret = cxd2820r_get_tune_settings_t2(fe, s); + break; + default: + ret = -EINVAL; + } + } else { + /* DVB-C */ + ret = cxd2820r_lock(priv, 1); + if (ret) + return ret; + + ret = cxd2820r_get_tune_settings_c(fe, s); + } + + return ret; +} + +static void cxd2820r_release(struct dvb_frontend *fe) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + dbg("%s", __func__); + + if (fe->ops.info.type == FE_OFDM) { + i2c_del_adapter(&priv->tuner_i2c_adapter); + kfree(priv); + } + + return; +} + +static u32 cxd2820r_tuner_i2c_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C; +} + +static int cxd2820r_tuner_i2c_xfer(struct i2c_adapter *i2c_adap, + struct i2c_msg msg[], int num) +{ + struct cxd2820r_priv *priv = i2c_get_adapdata(i2c_adap); + u8 obuf[msg[0].len + 2]; + struct i2c_msg msg2[2] = { + { + .addr = priv->cfg.i2c_address, + .flags = 0, + .len = sizeof(obuf), + .buf = obuf, + }, { + .addr = priv->cfg.i2c_address, + .flags = I2C_M_RD, + .len = msg[1].len, + .buf = msg[1].buf, + } + }; + + obuf[0] = 0x09; + obuf[1] = (msg[0].addr << 1); + if (num == 2) { /* I2C read */ + obuf[1] = (msg[0].addr << 1) | I2C_M_RD; /* I2C RD flag */ + msg2[0].len = sizeof(obuf) - 1; /* maybe HW bug ? */ + } + memcpy(&obuf[2], msg[0].buf, msg[0].len); + + return i2c_transfer(priv->i2c, msg2, num); +} + +static struct i2c_algorithm cxd2820r_tuner_i2c_algo = { + .master_xfer = cxd2820r_tuner_i2c_xfer, + .functionality = cxd2820r_tuner_i2c_func, +}; + +struct i2c_adapter *cxd2820r_get_tuner_i2c_adapter(struct dvb_frontend *fe) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + return &priv->tuner_i2c_adapter; +} +EXPORT_SYMBOL(cxd2820r_get_tuner_i2c_adapter); + +static struct dvb_frontend_ops cxd2820r_ops[2]; + +struct dvb_frontend *cxd2820r_attach(const struct cxd2820r_config *cfg, + struct i2c_adapter *i2c, struct dvb_frontend *fe) +{ + int ret; + struct cxd2820r_priv *priv = NULL; + u8 tmp; + + if (fe == NULL) { + /* FE0 */ + /* allocate memory for the internal priv */ + priv = kzalloc(sizeof(struct cxd2820r_priv), GFP_KERNEL); + if (priv == NULL) + goto error; + + /* setup the priv */ + priv->i2c = i2c; + memcpy(&priv->cfg, cfg, sizeof(struct cxd2820r_config)); + mutex_init(&priv->fe_lock); + + priv->active_fe = -1; /* NONE */ + + /* check if the demod is there */ + priv->bank[0] = priv->bank[1] = 0xff; + ret = cxd2820r_rd_reg(priv, 0x000fd, &tmp); + dbg("%s: chip id=%02x", __func__, tmp); + if (ret || tmp != 0xe1) + goto error; + + /* create frontends */ + memcpy(&priv->fe[0].ops, &cxd2820r_ops[0], + sizeof(struct dvb_frontend_ops)); + memcpy(&priv->fe[1].ops, &cxd2820r_ops[1], + sizeof(struct dvb_frontend_ops)); + + priv->fe[0].demodulator_priv = priv; + priv->fe[1].demodulator_priv = priv; + + /* create tuner i2c adapter */ + strlcpy(priv->tuner_i2c_adapter.name, + "CXD2820R tuner I2C adapter", + sizeof(priv->tuner_i2c_adapter.name)); + priv->tuner_i2c_adapter.algo = &cxd2820r_tuner_i2c_algo; + priv->tuner_i2c_adapter.algo_data = NULL; + i2c_set_adapdata(&priv->tuner_i2c_adapter, priv); + if (i2c_add_adapter(&priv->tuner_i2c_adapter) < 0) { + err("tuner I2C bus could not be initialized"); + goto error; + } + + return &priv->fe[0]; + + } else { + /* FE1: FE0 given as pointer, just return FE1 we have + * already created */ + priv = fe->demodulator_priv; + return &priv->fe[1]; + } + +error: + kfree(priv); + return NULL; +} +EXPORT_SYMBOL(cxd2820r_attach); + +static struct dvb_frontend_ops cxd2820r_ops[2] = { + { + /* DVB-T/T2 */ + .info = { + .name = "Sony CXD2820R (DVB-T/T2)", + .type = FE_OFDM, + .caps = + FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | + FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | + FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | + FE_CAN_QPSK | FE_CAN_QAM_16 | + FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | + FE_CAN_TRANSMISSION_MODE_AUTO | + FE_CAN_GUARD_INTERVAL_AUTO | + FE_CAN_HIERARCHY_AUTO | + FE_CAN_MUTE_TS | + FE_CAN_2G_MODULATION + }, + + .release = cxd2820r_release, + .init = cxd2820r_init, + .sleep = cxd2820r_sleep, + + .get_tune_settings = cxd2820r_get_tune_settings, + + .set_frontend = cxd2820r_set_frontend, + .get_frontend = cxd2820r_get_frontend, + + .read_status = cxd2820r_read_status, + .read_snr = cxd2820r_read_snr, + .read_ber = cxd2820r_read_ber, + .read_ucblocks = cxd2820r_read_ucblocks, + .read_signal_strength = cxd2820r_read_signal_strength, + }, + { + /* DVB-C */ + .info = { + .name = "Sony CXD2820R (DVB-C)", + .type = FE_QAM, + .caps = + FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 | + FE_CAN_QAM_128 | FE_CAN_QAM_256 | + FE_CAN_FEC_AUTO + }, + + .release = cxd2820r_release, + .init = cxd2820r_init, + .sleep = cxd2820r_sleep, + + .get_tune_settings = cxd2820r_get_tune_settings, + + .set_frontend = cxd2820r_set_frontend, + .get_frontend = cxd2820r_get_frontend, + + .read_status = cxd2820r_read_status, + .read_snr = cxd2820r_read_snr, + .read_ber = cxd2820r_read_ber, + .read_ucblocks = cxd2820r_read_ucblocks, + .read_signal_strength = cxd2820r_read_signal_strength, + }, +}; + + +MODULE_AUTHOR("Antti Palosaari "); +MODULE_DESCRIPTION("Sony CXD2820R demodulator driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/dvb/frontends/cxd2820r.h b/drivers/media/dvb/frontends/cxd2820r.h new file mode 100644 index 000000000000..ad17845123d9 --- /dev/null +++ b/drivers/media/dvb/frontends/cxd2820r.h @@ -0,0 +1,118 @@ +/* + * Sony CXD2820R demodulator driver + * + * Copyright (C) 2010 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 CXD2820R_H +#define CXD2820R_H + +#include + +#define CXD2820R_GPIO_D (0 << 0) /* disable */ +#define CXD2820R_GPIO_E (1 << 0) /* enable */ +#define CXD2820R_GPIO_O (0 << 1) /* output */ +#define CXD2820R_GPIO_I (1 << 1) /* input */ +#define CXD2820R_GPIO_L (0 << 2) /* output low */ +#define CXD2820R_GPIO_H (1 << 2) /* output high */ + +#define CXD2820R_TS_SERIAL 0x08 +#define CXD2820R_TS_SERIAL_MSB 0x28 +#define CXD2820R_TS_PARALLEL 0x30 +#define CXD2820R_TS_PARALLEL_MSB 0x70 + +struct cxd2820r_config { + /* Demodulator I2C address. + * Driver determines DVB-C slave I2C address automatically from master + * address. + * Default: none, must set + * Values: 0x6c, 0x6d + */ + u8 i2c_address; + + /* TS output mode. + * Default: none, must set. + * Values: + */ + u8 ts_mode; + + /* IF AGC polarity. + * Default: 0 + * Values: 0, 1 + */ + int if_agc_polarity:1; + + /* Spectrum inversion. + * Default: 0 + * Values: 0, 1 + */ + int spec_inv:1; + + /* IFs for all used modes. + * Default: none, must set + * Values: + */ + u16 if_dvbt_6; + u16 if_dvbt_7; + u16 if_dvbt_8; + u16 if_dvbt2_5; + u16 if_dvbt2_6; + u16 if_dvbt2_7; + u16 if_dvbt2_8; + u16 if_dvbc; + + /* GPIOs for all used modes. + * Default: none, disabled + * Values: + */ + u8 gpio_dvbt[3]; + u8 gpio_dvbt2[3]; + u8 gpio_dvbc[3]; +}; + + +#if defined(CONFIG_DVB_CXD2820R) || \ + (defined(CONFIG_DVB_CXD2820R_MODULE) && defined(MODULE)) +extern struct dvb_frontend *cxd2820r_attach( + const struct cxd2820r_config *config, + struct i2c_adapter *i2c, + struct dvb_frontend *fe +); +extern struct i2c_adapter *cxd2820r_get_tuner_i2c_adapter( + struct dvb_frontend *fe +); +#else +static inline struct dvb_frontend *cxd2820r_attach( + const struct cxd2820r_config *config, + struct i2c_adapter *i2c, + struct dvb_frontend *fe +) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +static inline struct i2c_adapter *cxd2820r_get_tuner_i2c_adapter( + struct dvb_frontend *fe +) +{ + return NULL; +} + +#endif + +#endif /* CXD2820R_H */ diff --git a/drivers/media/dvb/frontends/cxd2820r_c.c b/drivers/media/dvb/frontends/cxd2820r_c.c new file mode 100644 index 000000000000..a94bff944722 --- /dev/null +++ b/drivers/media/dvb/frontends/cxd2820r_c.c @@ -0,0 +1,336 @@ +/* + * Sony CXD2820R demodulator driver + * + * Copyright (C) 2010 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. + */ + + +static int cxd2820r_set_frontend_c(struct dvb_frontend *fe, + struct dvb_frontend_parameters *params) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret, i; + u8 buf[2]; + u16 if_ctl; + u64 num; + struct reg_val_mask tab[] = { + { 0x00080, 0x01, 0xff }, + { 0x00081, 0x05, 0xff }, + { 0x00085, 0x07, 0xff }, + { 0x00088, 0x01, 0xff }, + + { 0x00082, 0x20, 0x60 }, + { 0x1016a, 0x48, 0xff }, + { 0x100a5, 0x00, 0x01 }, + { 0x10020, 0x06, 0x07 }, + { 0x10059, 0x50, 0xff }, + { 0x10087, 0x0c, 0x3c }, + { 0x1008b, 0x07, 0xff }, + { 0x1001f, priv->cfg.if_agc_polarity << 7, 0x80 }, + { 0x10070, priv->cfg.ts_mode, 0xff }, + }; + + dbg("%s: RF=%d SR=%d", __func__, c->frequency, c->symbol_rate); + + /* update GPIOs */ + ret = cxd2820r_gpio(fe); + if (ret) + goto error; + + /* program tuner */ + if (fe->ops.tuner_ops.set_params) + fe->ops.tuner_ops.set_params(fe, params); + + if (priv->delivery_system != SYS_DVBC_ANNEX_AC) { + for (i = 0; i < ARRAY_SIZE(tab); i++) { + ret = cxd2820r_wr_reg_mask(priv, tab[i].reg, + tab[i].val, tab[i].mask); + if (ret) + goto error; + } + } + + priv->delivery_system = SYS_DVBC_ANNEX_AC; + priv->ber_running = 0; /* tune stops BER counter */ + + num = priv->cfg.if_dvbc; + num *= 0x4000; + if_ctl = cxd2820r_div_u64_round_closest(num, 41000); + buf[0] = (if_ctl >> 8) & 0x3f; + buf[1] = (if_ctl >> 0) & 0xff; + + ret = cxd2820r_wr_regs(priv, 0x10042, buf, 2); + if (ret) + goto error; + + ret = cxd2820r_wr_reg(priv, 0x000ff, 0x08); + if (ret) + goto error; + + ret = cxd2820r_wr_reg(priv, 0x000fe, 0x01); + if (ret) + goto error; + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_get_frontend_c(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret; + u8 buf[2]; + + ret = cxd2820r_rd_regs(priv, 0x1001a, buf, 2); + if (ret) + goto error; + + c->symbol_rate = 2500 * ((buf[0] & 0x0f) << 8 | buf[1]); + + ret = cxd2820r_rd_reg(priv, 0x10019, &buf[0]); + if (ret) + goto error; + + switch ((buf[0] >> 0) & 0x03) { + case 0: + c->modulation = QAM_16; + break; + case 1: + c->modulation = QAM_32; + break; + case 2: + c->modulation = QAM_64; + break; + case 3: + c->modulation = QAM_128; + break; + case 4: + c->modulation = QAM_256; + break; + } + + switch ((buf[0] >> 7) & 0x01) { + case 0: + c->inversion = INVERSION_OFF; + break; + case 1: + c->inversion = INVERSION_ON; + break; + } + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_read_ber_c(struct dvb_frontend *fe, u32 *ber) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + u8 buf[3], start_ber = 0; + *ber = 0; + + if (priv->ber_running) { + ret = cxd2820r_rd_regs(priv, 0x10076, buf, sizeof(buf)); + if (ret) + goto error; + + if ((buf[2] >> 7) & 0x01 || (buf[2] >> 4) & 0x01) { + *ber = (buf[2] & 0x0f) << 16 | buf[1] << 8 | buf[0]; + start_ber = 1; + } + } else { + priv->ber_running = 1; + start_ber = 1; + } + + if (start_ber) { + /* (re)start BER */ + ret = cxd2820r_wr_reg(priv, 0x10079, 0x01); + if (ret) + goto error; + } + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_read_signal_strength_c(struct dvb_frontend *fe, + u16 *strength) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + u8 buf[2]; + u16 tmp; + + ret = cxd2820r_rd_regs(priv, 0x10049, buf, sizeof(buf)); + if (ret) + goto error; + + tmp = (buf[0] & 0x03) << 8 | buf[1]; + tmp = (~tmp & 0x03ff); + + if (tmp == 512) + /* ~no signal */ + tmp = 0; + else if (tmp > 350) + tmp = 350; + + /* scale value to 0x0000-0xffff */ + *strength = tmp * 0xffff / (350-0); + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_read_snr_c(struct dvb_frontend *fe, u16 *snr) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + u8 tmp; + unsigned int A, B; + /* report SNR in dB * 10 */ + + ret = cxd2820r_rd_reg(priv, 0x10019, &tmp); + if (ret) + goto error; + + if (((tmp >> 0) & 0x03) % 2) { + A = 875; + B = 650; + } else { + A = 950; + B = 760; + } + + ret = cxd2820r_rd_reg(priv, 0x1004d, &tmp); + if (ret) + goto error; + + #define CXD2820R_LOG2_E_24 24204406 /* log2(e) << 24 */ + if (tmp) + *snr = A * (intlog2(B / tmp) >> 5) / (CXD2820R_LOG2_E_24 >> 5) + / 10; + else + *snr = 0; + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_read_ucblocks_c(struct dvb_frontend *fe, u32 *ucblocks) +{ + *ucblocks = 0; + /* no way to read ? */ + return 0; +} + +static int cxd2820r_read_status_c(struct dvb_frontend *fe, fe_status_t *status) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + u8 buf[2]; + *status = 0; + + ret = cxd2820r_rd_regs(priv, 0x10088, buf, sizeof(buf)); + if (ret) + goto error; + + if (((buf[0] >> 0) & 0x01) == 1) { + *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | + FE_HAS_VITERBI | FE_HAS_SYNC; + + if (((buf[1] >> 3) & 0x01) == 1) { + *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | + FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; + } + } + + dbg("%s: lock=%02x %02x", __func__, buf[0], buf[1]); + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_init_c(struct dvb_frontend *fe) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + + ret = cxd2820r_wr_reg(priv, 0x00085, 0x07); + if (ret) + goto error; + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_sleep_c(struct dvb_frontend *fe) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret, i; + struct reg_val_mask tab[] = { + { 0x000ff, 0x1f, 0xff }, + { 0x00085, 0x00, 0xff }, + { 0x00088, 0x01, 0xff }, + { 0x00081, 0x00, 0xff }, + { 0x00080, 0x00, 0xff }, + }; + + dbg("%s", __func__); + + priv->delivery_system = SYS_UNDEFINED; + + for (i = 0; i < ARRAY_SIZE(tab); i++) { + ret = cxd2820r_wr_reg_mask(priv, tab[i].reg, tab[i].val, + tab[i].mask); + if (ret) + goto error; + } + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_get_tune_settings_c(struct dvb_frontend *fe, + struct dvb_frontend_tune_settings *s) +{ + s->min_delay_ms = 500; + s->step_size = 0; /* no zigzag */ + s->max_drift = 0; + + return 0; +} + diff --git a/drivers/media/dvb/frontends/cxd2820r_priv.h b/drivers/media/dvb/frontends/cxd2820r_priv.h new file mode 100644 index 000000000000..4d2d79969d91 --- /dev/null +++ b/drivers/media/dvb/frontends/cxd2820r_priv.h @@ -0,0 +1,77 @@ +/* + * Sony CXD2820R demodulator driver + * + * Copyright (C) 2010 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 CXD2820R_PRIV_H +#define CXD2820R_PRIV_H + +#include "dvb_frontend.h" +#include "dvb_math.h" +#include "cxd2820r.h" + +#define LOG_PREFIX "cxd2820r" + +#undef dbg +#define dbg(f, arg...) \ + if (cxd2820r_debug) \ + printk(KERN_INFO LOG_PREFIX": " f "\n" , ## arg) +#undef err +#define err(f, arg...) printk(KERN_ERR LOG_PREFIX": " f "\n" , ## arg) +#undef info +#define info(f, arg...) printk(KERN_INFO LOG_PREFIX": " f "\n" , ## arg) +#undef warn +#define warn(f, arg...) printk(KERN_WARNING LOG_PREFIX": " f "\n" , ## arg) + +/* + * FIXME: These are totally wrong and must be added properly to the API. + * Only temporary solution in order to get driver compile. + */ +#define SYS_DVBT2 SYS_DAB +#define TRANSMISSION_MODE_1K 0 +#define TRANSMISSION_MODE_16K 0 +#define TRANSMISSION_MODE_32K 0 +#define GUARD_INTERVAL_1_128 0 +#define GUARD_INTERVAL_19_128 0 +#define GUARD_INTERVAL_19_256 0 + +struct reg_val_mask { + u32 reg; + u8 val; + u8 mask; +}; + +struct cxd2820r_priv { + struct i2c_adapter *i2c; + struct dvb_frontend fe[2]; + struct cxd2820r_config cfg; + struct i2c_adapter tuner_i2c_adapter; + + struct mutex fe_lock; /* FE lock */ + int active_fe:2; /* FE lock, -1=NONE, 0=DVB-T/T2, 1=DVB-C */ + + int ber_running:1; + + u8 bank[2]; + u8 gpio[3]; + + fe_delivery_system_t delivery_system; +}; + +#endif /* CXD2820R_PRIV_H */ diff --git a/drivers/media/dvb/frontends/cxd2820r_t.c b/drivers/media/dvb/frontends/cxd2820r_t.c new file mode 100644 index 000000000000..6732a9843f13 --- /dev/null +++ b/drivers/media/dvb/frontends/cxd2820r_t.c @@ -0,0 +1,447 @@ +/* + * Sony CXD2820R demodulator driver + * + * Copyright (C) 2010 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. + */ + + +static int cxd2820r_set_frontend_t(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret, i; + u32 if_khz, if_ctl; + u64 num; + u8 buf[3], bw_param; + u8 bw_params1[][5] = { + { 0x17, 0xea, 0xaa, 0xaa, 0xaa }, /* 6 MHz */ + { 0x14, 0x80, 0x00, 0x00, 0x00 }, /* 7 MHz */ + { 0x11, 0xf0, 0x00, 0x00, 0x00 }, /* 8 MHz */ + }; + u8 bw_params2[][2] = { + { 0x1f, 0xdc }, /* 6 MHz */ + { 0x12, 0xf8 }, /* 7 MHz */ + { 0x01, 0xe0 }, /* 8 MHz */ + }; + struct reg_val_mask tab[] = { + { 0x00080, 0x00, 0xff }, + { 0x00081, 0x03, 0xff }, + { 0x00085, 0x07, 0xff }, + { 0x00088, 0x01, 0xff }, + + { 0x00070, priv->cfg.ts_mode, 0xff }, + { 0x000cb, priv->cfg.if_agc_polarity << 6, 0x40 }, + { 0x000a5, 0x00, 0x01 }, + { 0x00082, 0x20, 0x60 }, + { 0x000c2, 0xc3, 0xff }, + { 0x0016a, 0x50, 0xff }, + { 0x00427, 0x41, 0xff }, + }; + + dbg("%s: RF=%d BW=%d", __func__, c->frequency, c->bandwidth_hz); + + /* update GPIOs */ + ret = cxd2820r_gpio(fe); + if (ret) + goto error; + + /* program tuner */ + if (fe->ops.tuner_ops.set_params) + fe->ops.tuner_ops.set_params(fe, p); + + if (priv->delivery_system != SYS_DVBT) { + for (i = 0; i < ARRAY_SIZE(tab); i++) { + ret = cxd2820r_wr_reg_mask(priv, tab[i].reg, + tab[i].val, tab[i].mask); + if (ret) + goto error; + } + } + + priv->delivery_system = SYS_DVBT; + priv->ber_running = 0; /* tune stops BER counter */ + + switch (c->bandwidth_hz) { + case 6000000: + if_khz = priv->cfg.if_dvbt_6; + i = 0; + bw_param = 2; + break; + case 7000000: + if_khz = priv->cfg.if_dvbt_7; + i = 1; + bw_param = 1; + break; + case 8000000: + if_khz = priv->cfg.if_dvbt_8; + i = 2; + bw_param = 0; + break; + default: + return -EINVAL; + } + + num = if_khz; + num *= 0x1000000; + if_ctl = cxd2820r_div_u64_round_closest(num, 41000); + buf[0] = ((if_ctl >> 16) & 0xff); + buf[1] = ((if_ctl >> 8) & 0xff); + buf[2] = ((if_ctl >> 0) & 0xff); + + ret = cxd2820r_wr_regs(priv, 0x000b6, buf, 3); + if (ret) + goto error; + + ret = cxd2820r_wr_regs(priv, 0x0009f, bw_params1[i], 5); + if (ret) + goto error; + + ret = cxd2820r_wr_reg_mask(priv, 0x000d7, bw_param << 6, 0xc0); + if (ret) + goto error; + + ret = cxd2820r_wr_regs(priv, 0x000d9, bw_params2[i], 2); + if (ret) + goto error; + + ret = cxd2820r_wr_reg(priv, 0x000ff, 0x08); + if (ret) + goto error; + + ret = cxd2820r_wr_reg(priv, 0x000fe, 0x01); + if (ret) + goto error; + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_get_frontend_t(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret; + u8 buf[2]; + + ret = cxd2820r_rd_regs(priv, 0x0002f, buf, sizeof(buf)); + if (ret) + goto error; + + switch ((buf[0] >> 6) & 0x03) { + case 0: + c->modulation = QPSK; + break; + case 1: + c->modulation = QAM_16; + break; + case 2: + c->modulation = QAM_64; + break; + } + + switch ((buf[1] >> 1) & 0x03) { + case 0: + c->transmission_mode = TRANSMISSION_MODE_2K; + break; + case 1: + c->transmission_mode = TRANSMISSION_MODE_8K; + break; + } + + switch ((buf[1] >> 3) & 0x03) { + case 0: + c->guard_interval = GUARD_INTERVAL_1_32; + break; + case 1: + c->guard_interval = GUARD_INTERVAL_1_16; + break; + case 2: + c->guard_interval = GUARD_INTERVAL_1_8; + break; + case 3: + c->guard_interval = GUARD_INTERVAL_1_4; + break; + } + + switch ((buf[0] >> 3) & 0x07) { + case 0: + c->hierarchy = HIERARCHY_NONE; + break; + case 1: + c->hierarchy = HIERARCHY_1; + break; + case 2: + c->hierarchy = HIERARCHY_2; + break; + case 3: + c->hierarchy = HIERARCHY_4; + break; + } + + switch ((buf[0] >> 0) & 0x07) { + case 0: + c->code_rate_HP = FEC_1_2; + break; + case 1: + c->code_rate_HP = FEC_2_3; + break; + case 2: + c->code_rate_HP = FEC_3_4; + break; + case 3: + c->code_rate_HP = FEC_5_6; + break; + case 4: + c->code_rate_HP = FEC_7_8; + break; + } + + switch ((buf[1] >> 5) & 0x07) { + case 0: + c->code_rate_LP = FEC_1_2; + break; + case 1: + c->code_rate_LP = FEC_2_3; + break; + case 2: + c->code_rate_LP = FEC_3_4; + break; + case 3: + c->code_rate_LP = FEC_5_6; + break; + case 4: + c->code_rate_LP = FEC_7_8; + break; + } + + ret = cxd2820r_rd_reg(priv, 0x007c6, &buf[0]); + if (ret) + goto error; + + switch ((buf[0] >> 0) & 0x01) { + case 0: + c->inversion = INVERSION_OFF; + break; + case 1: + c->inversion = INVERSION_ON; + break; + } + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_read_ber_t(struct dvb_frontend *fe, u32 *ber) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + u8 buf[3], start_ber = 0; + *ber = 0; + + if (priv->ber_running) { + ret = cxd2820r_rd_regs(priv, 0x00076, buf, sizeof(buf)); + if (ret) + goto error; + + if ((buf[2] >> 7) & 0x01 || (buf[2] >> 4) & 0x01) { + *ber = (buf[2] & 0x0f) << 16 | buf[1] << 8 | buf[0]; + start_ber = 1; + } + } else { + priv->ber_running = 1; + start_ber = 1; + } + + if (start_ber) { + /* (re)start BER */ + ret = cxd2820r_wr_reg(priv, 0x00079, 0x01); + if (ret) + goto error; + } + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_read_signal_strength_t(struct dvb_frontend *fe, + u16 *strength) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + u8 buf[2]; + u16 tmp; + + ret = cxd2820r_rd_regs(priv, 0x00026, buf, sizeof(buf)); + if (ret) + goto error; + + tmp = (buf[0] & 0x0f) << 8 | buf[1]; + tmp = ~tmp & 0x0fff; + + /* scale value to 0x0000-0xffff from 0x0000-0x0fff */ + *strength = tmp * 0xffff / 0x0fff; + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_read_snr_t(struct dvb_frontend *fe, u16 *snr) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + u8 buf[2]; + u16 tmp; + /* report SNR in dB * 10 */ + + ret = cxd2820r_rd_regs(priv, 0x00028, buf, sizeof(buf)); + if (ret) + goto error; + + tmp = (buf[0] & 0x1f) << 8 | buf[1]; + #define CXD2820R_LOG10_8_24 15151336 /* log10(8) << 24 */ + if (tmp) + *snr = (intlog10(tmp) - CXD2820R_LOG10_8_24) / ((1 << 24) + / 100); + else + *snr = 0; + + dbg("%s: dBx10=%d val=%04x", __func__, *snr, tmp); + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_read_ucblocks_t(struct dvb_frontend *fe, u32 *ucblocks) +{ + *ucblocks = 0; + /* no way to read ? */ + return 0; +} + +static int cxd2820r_read_status_t(struct dvb_frontend *fe, fe_status_t *status) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + u8 buf[4]; + *status = 0; + + ret = cxd2820r_rd_reg(priv, 0x00010, &buf[0]); + if (ret) + goto error; + + if ((buf[0] & 0x07) == 6) { + ret = cxd2820r_rd_reg(priv, 0x00073, &buf[1]); + if (ret) + goto error; + + if (((buf[1] >> 3) & 0x01) == 1) { + *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | + FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; + } else { + *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | + FE_HAS_VITERBI | FE_HAS_SYNC; + } + } else { + ret = cxd2820r_rd_reg(priv, 0x00014, &buf[2]); + if (ret) + goto error; + + if ((buf[2] & 0x0f) >= 4) { + ret = cxd2820r_rd_reg(priv, 0x00a14, &buf[3]); + if (ret) + goto error; + + if (((buf[3] >> 4) & 0x01) == 1) + *status |= FE_HAS_SIGNAL; + } + } + + dbg("%s: lock=%02x %02x %02x %02x", __func__, + buf[0], buf[1], buf[2], buf[3]); + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_init_t(struct dvb_frontend *fe) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + + ret = cxd2820r_wr_reg(priv, 0x00085, 0x07); + if (ret) + goto error; + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_sleep_t(struct dvb_frontend *fe) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret, i; + struct reg_val_mask tab[] = { + { 0x000ff, 0x1f, 0xff }, + { 0x00085, 0x00, 0xff }, + { 0x00088, 0x01, 0xff }, + { 0x00081, 0x00, 0xff }, + { 0x00080, 0x00, 0xff }, + }; + + dbg("%s", __func__); + + priv->delivery_system = SYS_UNDEFINED; + + for (i = 0; i < ARRAY_SIZE(tab); i++) { + ret = cxd2820r_wr_reg_mask(priv, tab[i].reg, tab[i].val, + tab[i].mask); + if (ret) + goto error; + } + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_get_tune_settings_t(struct dvb_frontend *fe, + struct dvb_frontend_tune_settings *s) +{ + s->min_delay_ms = 500; + s->step_size = fe->ops.info.frequency_stepsize * 2; + s->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; + + return 0; +} + diff --git a/drivers/media/dvb/frontends/cxd2820r_t2.c b/drivers/media/dvb/frontends/cxd2820r_t2.c new file mode 100644 index 000000000000..6ec94ea77f15 --- /dev/null +++ b/drivers/media/dvb/frontends/cxd2820r_t2.c @@ -0,0 +1,421 @@ +/* + * Sony CXD2820R demodulator driver + * + * Copyright (C) 2010 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. + */ + + +static int cxd2820r_set_frontend_t2(struct dvb_frontend *fe, + struct dvb_frontend_parameters *params) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret, i; + u32 if_khz, if_ctl; + u64 num; + u8 buf[3], bw_param; + u8 bw_params1[][5] = { + { 0x1c, 0xb3, 0x33, 0x33, 0x33 }, /* 5 MHz */ + { 0x17, 0xea, 0xaa, 0xaa, 0xaa }, /* 6 MHz */ + { 0x14, 0x80, 0x00, 0x00, 0x00 }, /* 7 MHz */ + { 0x11, 0xf0, 0x00, 0x00, 0x00 }, /* 8 MHz */ + }; + struct reg_val_mask tab[] = { + { 0x00080, 0x02, 0xff }, + { 0x00081, 0x20, 0xff }, + { 0x00085, 0x07, 0xff }, + { 0x00088, 0x01, 0xff }, + { 0x02069, 0x01, 0xff }, + + { 0x0207f, 0x2a, 0xff }, + { 0x02082, 0x0a, 0xff }, + { 0x02083, 0x0a, 0xff }, + { 0x020cb, priv->cfg.if_agc_polarity << 6, 0x40 }, + { 0x02070, priv->cfg.ts_mode, 0xff }, + { 0x020b5, priv->cfg.spec_inv << 4, 0x10 }, + { 0x02567, 0x07, 0x0f }, + { 0x02569, 0x03, 0x03 }, + { 0x02595, 0x1a, 0xff }, + { 0x02596, 0x50, 0xff }, + { 0x02a8c, 0x00, 0xff }, + { 0x02a8d, 0x34, 0xff }, + { 0x02a45, 0x06, 0x07 }, + { 0x03f10, 0x0d, 0xff }, + { 0x03f11, 0x02, 0xff }, + { 0x03f12, 0x01, 0xff }, + { 0x03f23, 0x2c, 0xff }, + { 0x03f51, 0x13, 0xff }, + { 0x03f52, 0x01, 0xff }, + { 0x03f53, 0x00, 0xff }, + { 0x027e6, 0x14, 0xff }, + { 0x02786, 0x02, 0x07 }, + { 0x02787, 0x40, 0xe0 }, + { 0x027ef, 0x10, 0x18 }, + }; + + dbg("%s: RF=%d BW=%d", __func__, c->frequency, c->bandwidth_hz); + + /* update GPIOs */ + ret = cxd2820r_gpio(fe); + if (ret) + goto error; + + /* program tuner */ + if (fe->ops.tuner_ops.set_params) + fe->ops.tuner_ops.set_params(fe, params); + + if (priv->delivery_system != SYS_DVBT2) { + for (i = 0; i < ARRAY_SIZE(tab); i++) { + ret = cxd2820r_wr_reg_mask(priv, tab[i].reg, + tab[i].val, tab[i].mask); + if (ret) + goto error; + } + } + + priv->delivery_system = SYS_DVBT2; + + switch (c->bandwidth_hz) { + case 5000000: + if_khz = priv->cfg.if_dvbt2_5; + i = 0; + bw_param = 3; + break; + case 6000000: + if_khz = priv->cfg.if_dvbt2_6; + i = 1; + bw_param = 2; + break; + case 7000000: + if_khz = priv->cfg.if_dvbt2_7; + i = 2; + bw_param = 1; + break; + case 8000000: + if_khz = priv->cfg.if_dvbt2_8; + i = 3; + bw_param = 0; + break; + default: + return -EINVAL; + } + + num = if_khz; + num *= 0x1000000; + if_ctl = cxd2820r_div_u64_round_closest(num, 41000); + buf[0] = ((if_ctl >> 16) & 0xff); + buf[1] = ((if_ctl >> 8) & 0xff); + buf[2] = ((if_ctl >> 0) & 0xff); + + ret = cxd2820r_wr_regs(priv, 0x020b6, buf, 3); + if (ret) + goto error; + + ret = cxd2820r_wr_regs(priv, 0x0209f, bw_params1[i], 5); + if (ret) + goto error; + + ret = cxd2820r_wr_reg_mask(priv, 0x020d7, bw_param << 6, 0xc0); + if (ret) + goto error; + + ret = cxd2820r_wr_reg(priv, 0x000ff, 0x08); + if (ret) + goto error; + + ret = cxd2820r_wr_reg(priv, 0x000fe, 0x01); + if (ret) + goto error; + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; + +} + +static int cxd2820r_get_frontend_t2(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret; + u8 buf[2]; + + ret = cxd2820r_rd_regs(priv, 0x0205c, buf, 2); + if (ret) + goto error; + + switch ((buf[0] >> 0) & 0x07) { + case 0: + c->transmission_mode = TRANSMISSION_MODE_2K; + break; + case 1: + c->transmission_mode = TRANSMISSION_MODE_8K; + break; + case 2: + c->transmission_mode = TRANSMISSION_MODE_4K; + break; + case 3: + c->transmission_mode = TRANSMISSION_MODE_1K; + break; + case 4: + c->transmission_mode = TRANSMISSION_MODE_16K; + break; + case 5: + c->transmission_mode = TRANSMISSION_MODE_32K; + break; + } + + switch ((buf[1] >> 4) & 0x07) { + case 0: + c->guard_interval = GUARD_INTERVAL_1_32; + break; + case 1: + c->guard_interval = GUARD_INTERVAL_1_16; + break; + case 2: + c->guard_interval = GUARD_INTERVAL_1_8; + break; + case 3: + c->guard_interval = GUARD_INTERVAL_1_4; + break; + case 4: + c->guard_interval = GUARD_INTERVAL_1_128; + break; + case 5: + c->guard_interval = GUARD_INTERVAL_19_128; + break; + case 6: + c->guard_interval = GUARD_INTERVAL_19_256; + break; + } + + ret = cxd2820r_rd_regs(priv, 0x0225b, buf, 2); + if (ret) + goto error; + + switch ((buf[0] >> 0) & 0x07) { + case 0: + c->fec_inner = FEC_1_2; + break; + case 1: + c->fec_inner = FEC_3_5; + break; + case 2: + c->fec_inner = FEC_2_3; + break; + case 3: + c->fec_inner = FEC_3_4; + break; + case 4: + c->fec_inner = FEC_4_5; + break; + case 5: + c->fec_inner = FEC_5_6; + break; + } + + switch ((buf[1] >> 0) & 0x07) { + case 0: + c->modulation = QPSK; + break; + case 1: + c->modulation = QAM_16; + break; + case 2: + c->modulation = QAM_64; + break; + case 3: + c->modulation = QAM_256; + break; + } + + ret = cxd2820r_rd_reg(priv, 0x020b5, &buf[0]); + if (ret) + goto error; + + switch ((buf[0] >> 4) & 0x01) { + case 0: + c->inversion = INVERSION_OFF; + break; + case 1: + c->inversion = INVERSION_ON; + break; + } + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_read_status_t2(struct dvb_frontend *fe, fe_status_t *status) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + u8 buf[1]; + *status = 0; + + ret = cxd2820r_rd_reg(priv, 0x02010 , &buf[0]); + if (ret) + goto error; + + if ((buf[0] & 0x07) == 6) { + if (((buf[0] >> 5) & 0x01) == 1) { + *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | + FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; + } else { + *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | + FE_HAS_VITERBI | FE_HAS_SYNC; + } + } + + dbg("%s: lock=%02x", __func__, buf[0]); + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_read_ber_t2(struct dvb_frontend *fe, u32 *ber) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + u8 buf[4]; + unsigned int errbits; + *ber = 0; + /* FIXME: correct calculation */ + + ret = cxd2820r_rd_regs(priv, 0x02039, buf, sizeof(buf)); + if (ret) + goto error; + + if ((buf[0] >> 4) & 0x01) { + errbits = (buf[0] & 0x0f) << 24 | buf[1] << 16 | + buf[2] << 8 | buf[3]; + + if (errbits) + *ber = errbits * 64 / 16588800; + } + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_read_signal_strength_t2(struct dvb_frontend *fe, + u16 *strength) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + u8 buf[2]; + u16 tmp; + + ret = cxd2820r_rd_regs(priv, 0x02026, buf, sizeof(buf)); + if (ret) + goto error; + + tmp = (buf[0] & 0x0f) << 8 | buf[1]; + tmp = ~tmp & 0x0fff; + + /* scale value to 0x0000-0xffff from 0x0000-0x0fff */ + *strength = tmp * 0xffff / 0x0fff; + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_read_snr_t2(struct dvb_frontend *fe, u16 *snr) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret; + u8 buf[2]; + u16 tmp; + /* report SNR in dB * 10 */ + + ret = cxd2820r_rd_regs(priv, 0x02028, buf, sizeof(buf)); + if (ret) + goto error; + + tmp = (buf[0] & 0x0f) << 8 | buf[1]; + #define CXD2820R_LOG10_8_24 15151336 /* log10(8) << 24 */ + if (tmp) + *snr = (intlog10(tmp) - CXD2820R_LOG10_8_24) / ((1 << 24) + / 100); + else + *snr = 0; + + dbg("%s: dBx10=%d val=%04x", __func__, *snr, tmp); + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_read_ucblocks_t2(struct dvb_frontend *fe, u32 *ucblocks) +{ + *ucblocks = 0; + /* no way to read ? */ + return 0; +} + +static int cxd2820r_sleep_t2(struct dvb_frontend *fe) +{ + struct cxd2820r_priv *priv = fe->demodulator_priv; + int ret, i; + struct reg_val_mask tab[] = { + { 0x000ff, 0x1f, 0xff }, + { 0x00085, 0x00, 0xff }, + { 0x00088, 0x01, 0xff }, + { 0x02069, 0x00, 0xff }, + { 0x00081, 0x00, 0xff }, + { 0x00080, 0x00, 0xff }, + }; + + dbg("%s", __func__); + + for (i = 0; i < ARRAY_SIZE(tab); i++) { + ret = cxd2820r_wr_reg_mask(priv, tab[i].reg, tab[i].val, + tab[i].mask); + if (ret) + goto error; + } + + priv->delivery_system = SYS_UNDEFINED; + + return ret; +error: + dbg("%s: failed:%d", __func__, ret); + return ret; +} + +static int cxd2820r_get_tune_settings_t2(struct dvb_frontend *fe, + struct dvb_frontend_tune_settings *s) +{ + s->min_delay_ms = 1500; + s->step_size = fe->ops.info.frequency_stepsize * 2; + s->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; + + return 0; +} + -- 2.30.2