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
obj-$(CONFIG_DVB_MB86A20S) += mb86a20s.o
obj-$(CONFIG_DVB_IX2505V) += ix2505v.o
obj-$(CONFIG_DVB_STV0367) += stv0367.o
+obj-$(CONFIG_DVB_CXD2820R) += cxd2820r.o
+
--- /dev/null
+/*
+ * Sony CXD2820R demodulator driver
+ *
+ * Copyright (C) 2010 Antti Palosaari <crope@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.
+ *
+ * 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 <crope@iki.fi>");
+MODULE_DESCRIPTION("Sony CXD2820R demodulator driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Sony CXD2820R demodulator driver
+ *
+ * Copyright (C) 2010 Antti Palosaari <crope@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.
+ *
+ * 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 <linux/dvb/frontend.h>
+
+#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: <kHz>
+ */
+ 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: <see above>
+ */
+ 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 */
--- /dev/null
+/*
+ * Sony CXD2820R demodulator driver
+ *
+ * Copyright (C) 2010 Antti Palosaari <crope@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.
+ *
+ * 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;
+}
+
--- /dev/null
+/*
+ * Sony CXD2820R demodulator driver
+ *
+ * Copyright (C) 2010 Antti Palosaari <crope@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.
+ *
+ * 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; /*Â 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 */
--- /dev/null
+/*
+ * Sony CXD2820R demodulator driver
+ *
+ * Copyright (C) 2010 Antti Palosaari <crope@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.
+ *
+ * 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;
+}
+
--- /dev/null
+/*
+ * Sony CXD2820R demodulator driver
+ *
+ * Copyright (C) 2010 Antti Palosaari <crope@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.
+ *
+ * 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;
+}
+
projects / mirror_ubuntu-jammy-kernel.git / commitdiff