[PATCH v3 09/14] [media] cxd2880: Add DVB-T monitor and integration layer functions

From: Yasunari.Takiguchi
Date: Wed Aug 16 2017 - 00:38:39 EST

From: Yasunari Takiguchi <Yasunari.Takiguchi@xxxxxxxx>

Provide monitor and integration layer functions (DVB-T)
for the Sony CXD2880 DVB-T2/T tuner + demodulator driver.

[Change list]
Changes in V3
drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.c
-changed CXD2880_SLEEP to usleep_range
-chnaged cxd2880_atomic_set to atomic_set
-modified return code
-modified coding style of if()
drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.h
-modified return code
drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.c
-removed unnecessary cast
-changed cxd2880_math_log to intlog10
-changed hexadecimal code to lower case.
drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.h
-modified return code

Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@xxxxxxxx>
Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@xxxxxxxx>
Signed-off-by: Hideki Nozawa <Hideki.Nozawa@xxxxxxxx>
Signed-off-by: Kota Yonezawa <Kota.Yonezawa@xxxxxxxx>
Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@xxxxxxxx>
Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@xxxxxxxx>
---
.../dvb-frontends/cxd2880/cxd2880_integ_dvbt.c | 198 ++++
.../dvb-frontends/cxd2880/cxd2880_integ_dvbt.h | 58 +
.../cxd2880/cxd2880_tnrdmd_dvbt_mon.c | 1227 ++++++++++++++++++++
.../cxd2880/cxd2880_tnrdmd_dvbt_mon.h | 106 ++
4 files changed, 1589 insertions(+)
create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.c
create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.h
create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.c
create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.h

diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.c
new file mode 100644
index 000000000000..729cb0939203
--- /dev/null
+++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.c
@@ -0,0 +1,198 @@
+/*
+ * cxd2880_integ_dvbt.c
+ * Sony CXD2880 DVB-T2/T tuner + demodulator driver
+ * integration layer functions for DVB-T
+ *
+ * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation
+ *
+ * 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; version 2 of the License.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "cxd2880_tnrdmd_dvbt.h"
+#include "cxd2880_integ_dvbt.h"
+
+static int dvbt_wait_demod_lock(struct cxd2880_tnrdmd *tnr_dmd);
+
+int cxd2880_integ_dvbt_tune(struct cxd2880_tnrdmd *tnr_dmd,
+ struct cxd2880_dvbt_tune_param
+ *tune_param)
+{
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!tune_param))
+ return -EINVAL;
+
+ if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if ((tnr_dmd->state != CXD2880_TNRDMD_STATE_SLEEP) &&
+ (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE))
+ return -EPERM;
+
+ atomic_set(&tnr_dmd->cancel, 0);
+
+ if ((tune_param->bandwidth != CXD2880_DTV_BW_5_MHZ) &&
+ (tune_param->bandwidth != CXD2880_DTV_BW_6_MHZ) &&
+ (tune_param->bandwidth != CXD2880_DTV_BW_7_MHZ) &&
+ (tune_param->bandwidth != CXD2880_DTV_BW_8_MHZ)) {
+ return -EOPNOTSUPP;
+ }
+
+ ret = cxd2880_tnrdmd_dvbt_tune1(tnr_dmd, tune_param);
+ if (ret)
+ return ret;
+
+ usleep_range(CXD2880_TNRDMD_WAIT_AGC_STABLE * 10000,
+ CXD2880_TNRDMD_WAIT_AGC_STABLE * 10000 + 1000);
+
+ ret = cxd2880_tnrdmd_dvbt_tune2(tnr_dmd, tune_param);
+ if (ret)
+ return ret;
+
+ ret = dvbt_wait_demod_lock(tnr_dmd);
+ if (ret)
+ return ret;
+
+ return ret;
+}
+
+int cxd2880_integ_dvbt_wait_ts_lock(struct cxd2880_tnrdmd *tnr_dmd)
+{
+ int ret = 0;
+ enum cxd2880_tnrdmd_lock_result lock =
+ CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT;
+ struct cxd2880_stopwatch timer;
+ u8 continue_wait = 1;
+ unsigned int elapsed = 0;
+
+ if (!tnr_dmd)
+ return -EINVAL;
+
+ if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ ret = cxd2880_stopwatch_start(&timer);
+ if (ret)
+ return ret;
+
+ for (;;) {
+ ret = cxd2880_stopwatch_elapsed(&timer, &elapsed);
+ if (ret)
+ return ret;
+
+ if (elapsed >= CXD2880_DVBT_WAIT_TS_LOCK)
+ continue_wait = 0;
+
+ ret = cxd2880_tnrdmd_dvbt_check_ts_lock(tnr_dmd, &lock);
+ if (ret)
+ return ret;
+
+ switch (lock) {
+ case CXD2880_TNRDMD_LOCK_RESULT_LOCKED:
+ return 0;
+
+ case CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED:
+ return -EAGAIN;
+
+ default:
+ break;
+ }
+
+ ret = cxd2880_integ_check_cancellation(tnr_dmd);
+ if (ret)
+ return ret;
+
+ if (continue_wait) {
+ ret =
+ cxd2880_stopwatch_sleep(&timer,
+ CXD2880_DVBT_WAIT_LOCK_INTVL);
+ if (ret)
+ return ret;
+ } else {
+ ret = -ETIME;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+static int dvbt_wait_demod_lock(struct cxd2880_tnrdmd *tnr_dmd)
+{
+ int ret = 0;
+ enum cxd2880_tnrdmd_lock_result lock =
+ CXD2880_TNRDMD_LOCK_RESULT_NOTDETECT;
+ struct cxd2880_stopwatch timer;
+ u8 continue_wait = 1;
+ unsigned int elapsed = 0;
+
+ if (!tnr_dmd)
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ ret = cxd2880_stopwatch_start(&timer);
+ if (ret)
+ return ret;
+
+ for (;;) {
+ ret = cxd2880_stopwatch_elapsed(&timer, &elapsed);
+ if (ret)
+ return ret;
+
+ if (elapsed >= CXD2880_DVBT_WAIT_DMD_LOCK)
+ continue_wait = 0;
+
+ ret = cxd2880_tnrdmd_dvbt_check_demod_lock(tnr_dmd, &lock);
+ if (ret)
+ return ret;
+
+ switch (lock) {
+ case CXD2880_TNRDMD_LOCK_RESULT_LOCKED:
+ return 0;
+
+ case CXD2880_TNRDMD_LOCK_RESULT_UNLOCKED:
+ return -EAGAIN;
+
+ default:
+ break;
+ }
+
+ ret = cxd2880_integ_check_cancellation(tnr_dmd);
+ if (ret)
+ return ret;
+
+ if (continue_wait) {
+ ret =
+ cxd2880_stopwatch_sleep(&timer,
+ CXD2880_DVBT_WAIT_LOCK_INTVL);
+ if (ret)
+ return ret;
+ } else {
+ ret = -ETIME;
+ break;
+ }
+ }
+
+ return ret;
+}
diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.h
new file mode 100644
index 000000000000..07f9b71a3006
--- /dev/null
+++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_integ_dvbt.h
@@ -0,0 +1,58 @@
+/*
+ * cxd2880_integ_dvbt.h
+ * Sony CXD2880 DVB-T2/T tuner + demodulator driver
+ * integration layer interface for DVB-T
+ *
+ * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation
+ *
+ * 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; version 2 of the License.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef CXD2880_INTEG_DVBT_H
+#define CXD2880_INTEG_DVBT_H
+
+#include "cxd2880_tnrdmd.h"
+#include "cxd2880_tnrdmd_dvbt.h"
+#include "cxd2880_integ.h"
+
+#define CXD2880_DVBT_WAIT_DMD_LOCK 1000
+#define CXD2880_DVBT_WAIT_TS_LOCK 1000
+#define CXD2880_DVBT_WAIT_LOCK_INTVL 10
+
+struct cxd2880_integ_dvbt_scan_param {
+ u32 start_frequency_khz;
+ u32 end_frequency_khz;
+ u32 step_frequency_khz;
+ enum cxd2880_dtv_bandwidth bandwidth;
+};
+
+struct cxd2880_integ_dvbt_scan_result {
+ u32 center_freq_khz;
+ int tune_result;
+ struct cxd2880_dvbt_tune_param dvbt_tune_param;
+};
+
+int cxd2880_integ_dvbt_tune(struct cxd2880_tnrdmd *tnr_dmd,
+ struct cxd2880_dvbt_tune_param
+ *tune_param);
+
+int cxd2880_integ_dvbt_wait_ts_lock(struct cxd2880_tnrdmd
+ *tnr_dmd);
+
+#endif
diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.c
new file mode 100644
index 000000000000..37396a071727
--- /dev/null
+++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.c
@@ -0,0 +1,1227 @@
+/*
+ * cxd2880_tnrdmd_dvbt_mon.c
+ * Sony CXD2880 DVB-T2/T tuner + demodulator driver
+ * DVB-T monitor functions
+ *
+ * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation
+ *
+ * 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; version 2 of the License.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "cxd2880_tnrdmd_mon.h"
+#include "cxd2880_tnrdmd_dvbt.h"
+#include "cxd2880_tnrdmd_dvbt_mon.h"
+
+#include "dvb_math.h"
+
+static int is_tps_locked(struct cxd2880_tnrdmd *tnr_dmd);
+
+int cxd2880_tnrdmd_dvbt_mon_sync_stat(struct cxd2880_tnrdmd
+ *tnr_dmd, u8 *sync_stat,
+ u8 *ts_lock_stat,
+ u8 *unlock_detected)
+{
+ u8 rdata = 0x00;
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!sync_stat) || (!ts_lock_stat) || (!unlock_detected))
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0d);
+ if (ret)
+ return ret;
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x10, &rdata, 1);
+ if (ret)
+ return ret;
+
+ *unlock_detected = (rdata & 0x10) ? 1 : 0;
+ *sync_stat = rdata & 0x07;
+ *ts_lock_stat = (rdata & 0x20) ? 1 : 0;
+
+ if (*sync_stat == 0x07)
+ return -EBUSY;
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_sync_stat_sub(struct cxd2880_tnrdmd
+ *tnr_dmd, u8 *sync_stat,
+ u8 *unlock_detected)
+{
+ u8 ts_lock_stat = 0;
+
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!sync_stat) || (!unlock_detected))
+ return -EINVAL;
+
+ if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN)
+ return -EINVAL;
+
+ ret =
+ cxd2880_tnrdmd_dvbt_mon_sync_stat(tnr_dmd->diver_sub, sync_stat,
+ &ts_lock_stat, unlock_detected);
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_mode_guard(struct cxd2880_tnrdmd
+ *tnr_dmd,
+ enum cxd2880_dvbt_mode
+ *mode,
+ enum cxd2880_dvbt_guard
+ *guard)
+{
+ u8 rdata = 0x00;
+
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!mode) || (!guard))
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ ret = slvt_freeze_reg(tnr_dmd);
+ if (ret)
+ return ret;
+
+ ret = is_tps_locked(tnr_dmd);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+
+ if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN)
+ ret =
+ cxd2880_tnrdmd_dvbt_mon_mode_guard(
+ tnr_dmd->diver_sub, mode, guard);
+
+ return ret;
+ }
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0d);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x1b, &rdata, 1);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ slvt_unfreeze_reg(tnr_dmd);
+
+ *mode = (enum cxd2880_dvbt_mode)((rdata >> 2) & 0x03);
+ *guard = (enum cxd2880_dvbt_guard)(rdata & 0x03);
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_carrier_offset(struct cxd2880_tnrdmd
+ *tnr_dmd, int *offset)
+{
+ u8 rdata[4];
+ u32 ctl_val = 0;
+
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!offset))
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ ret = slvt_freeze_reg(tnr_dmd);
+ if (ret)
+ return ret;
+
+ ret = is_tps_locked(tnr_dmd);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0d);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x1d, rdata, 4);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ slvt_unfreeze_reg(tnr_dmd);
+
+ ctl_val =
+ ((rdata[0] & 0x1f) << 24) | (rdata[1] << 16) | (rdata[2] << 8) |
+ (rdata[3]);
+ *offset = cxd2880_convert2s_complement(ctl_val, 29);
+ *offset = -1 * ((*offset) * tnr_dmd->bandwidth / 235);
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_carrier_offset_sub(struct
+ cxd2880_tnrdmd
+ *tnr_dmd,
+ int *offset)
+{
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!offset))
+ return -EINVAL;
+
+ if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN)
+ return -EINVAL;
+
+ ret =
+ cxd2880_tnrdmd_dvbt_mon_carrier_offset(tnr_dmd->diver_sub, offset);
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_pre_viterbiber(struct cxd2880_tnrdmd
+ *tnr_dmd, u32 *ber)
+{
+ u8 rdata[2];
+ u32 bit_error = 0;
+ u32 period = 0;
+
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!ber))
+ return -EINVAL;
+
+ if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ ret = slvt_freeze_reg(tnr_dmd);
+ if (ret)
+ return ret;
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x10);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x39, rdata, 1);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ if ((rdata[0] & 0x01) == 0) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return -EBUSY;
+ }
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x22, rdata, 2);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ bit_error = (rdata[0] << 8) | rdata[1];
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x6f, rdata, 1);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ slvt_unfreeze_reg(tnr_dmd);
+
+ period = ((rdata[0] & 0x07) == 0) ? 256 : (0x1000 << (rdata[0] & 0x07));
+
+ if ((period == 0) || (bit_error > period))
+ return -EBUSY;
+
+ {
+ u32 div = 0;
+ u32 Q = 0;
+ u32 R = 0;
+
+ div = period / 128;
+
+ Q = (bit_error * 3125) / div;
+ R = (bit_error * 3125) % div;
+
+ R *= 25;
+ Q = Q * 25 + R / div;
+ R = R % div;
+
+ if (div / 2 <= R)
+ *ber = Q + 1;
+ else
+ *ber = Q;
+ }
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_pre_rsber(struct cxd2880_tnrdmd
+ *tnr_dmd, u32 *ber)
+{
+ u8 rdata[3];
+ u32 bit_error = 0;
+ u32 period_exp = 0;
+
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!ber))
+ return -EINVAL;
+
+ if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0d);
+ if (ret)
+ return ret;
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x15, rdata, 3);
+ if (ret)
+ return ret;
+
+ if ((rdata[0] & 0x40) == 0)
+ return -EBUSY;
+
+ bit_error = ((rdata[0] & 0x3f) << 16) | (rdata[1] << 8) | rdata[2];
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x10);
+ if (ret)
+ return ret;
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x60, rdata, 1);
+ if (ret)
+ return ret;
+
+ period_exp = (rdata[0] & 0x1f);
+
+ if ((period_exp <= 11) && (bit_error > (1U << period_exp) * 204 * 8))
+ return -EBUSY;
+
+ {
+ u32 div = 0;
+ u32 Q = 0;
+ u32 R = 0;
+
+ if (period_exp <= 8)
+ div = (1U << period_exp) * 51;
+ else
+ div = (1U << 8) * 51;
+
+ Q = (bit_error * 250) / div;
+ R = (bit_error * 250) % div;
+
+ R *= 1250;
+ Q = Q * 1250 + R / div;
+ R = R % div;
+
+ if (period_exp > 8) {
+ *ber =
+ (Q + (1 << (period_exp - 9))) >> (period_exp - 8);
+ } else {
+ if (div / 2 <= R)
+ *ber = Q + 1;
+ else
+ *ber = Q;
+ }
+ }
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_tps_info(struct cxd2880_tnrdmd
+ *tnr_dmd,
+ struct cxd2880_dvbt_tpsinfo
+ *info)
+{
+ u8 rdata[7];
+ u8 cell_id_ok = 0;
+
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!info))
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ ret = slvt_freeze_reg(tnr_dmd);
+ if (ret)
+ return ret;
+
+ ret = is_tps_locked(tnr_dmd);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+
+ if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN)
+ ret =
+ cxd2880_tnrdmd_dvbt_mon_tps_info(tnr_dmd->diver_sub,
+ info);
+
+ return ret;
+ }
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0d);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x29, rdata, 7);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x11);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0xd5, &cell_id_ok, 1);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ slvt_unfreeze_reg(tnr_dmd);
+
+ info->constellation =
+ (enum cxd2880_dvbt_constellation)((rdata[0] >> 6) & 0x03);
+ info->hierarchy = (enum cxd2880_dvbt_hierarchy)((rdata[0] >> 3) & 0x07);
+ info->rate_hp = (enum cxd2880_dvbt_coderate)(rdata[0] & 0x07);
+ info->rate_lp = (enum cxd2880_dvbt_coderate)((rdata[1] >> 5) & 0x07);
+ info->guard = (enum cxd2880_dvbt_guard)((rdata[1] >> 3) & 0x03);
+ info->mode = (enum cxd2880_dvbt_mode)((rdata[1] >> 1) & 0x03);
+ info->fnum = (rdata[2] >> 6) & 0x03;
+ info->length_indicator = rdata[2] & 0x3f;
+ info->cell_id = (rdata[3] << 8) | rdata[4];
+ info->reserved_even = rdata[5] & 0x3f;
+ info->reserved_odd = rdata[6] & 0x3f;
+
+ info->cell_id_ok = cell_id_ok & 0x01;
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_packet_error_number(struct
+ cxd2880_tnrdmd
+ *tnr_dmd,
+ u32 *pen)
+{
+ u8 rdata[3];
+
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!pen))
+ return -EINVAL;
+
+ if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0d);
+ if (ret)
+ return ret;
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x26, rdata, 3);
+ if (ret)
+ return ret;
+
+ if (!(rdata[0] & 0x01))
+ return -EBUSY;
+
+ *pen = (rdata[1] << 8) | rdata[2];
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_spectrum_sense(struct cxd2880_tnrdmd
+ *tnr_dmd,
+ enum
+ cxd2880_tnrdmd_spectrum_sense
+ *sense)
+{
+ u8 data = 0;
+
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!sense))
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ ret = slvt_freeze_reg(tnr_dmd);
+ if (ret)
+ return ret;
+
+ ret = is_tps_locked(tnr_dmd);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+
+ if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_MAIN)
+ ret = cxd2880_tnrdmd_dvbt_mon_spectrum_sense(
+ tnr_dmd->diver_sub, sense);
+
+ return ret;
+ }
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0d);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x1c, &data, sizeof(data));
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ slvt_unfreeze_reg(tnr_dmd);
+
+ *sense =
+ (data & 0x01) ? CXD2880_TNRDMD_SPECTRUM_INV :
+ CXD2880_TNRDMD_SPECTRUM_NORMAL;
+
+ return ret;
+}
+
+static int dvbt_read_snr_reg(struct cxd2880_tnrdmd *tnr_dmd,
+ u16 *reg_value)
+{
+ u8 rdata[2];
+
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!reg_value))
+ return -EINVAL;
+
+ ret = slvt_freeze_reg(tnr_dmd);
+ if (ret)
+ return ret;
+
+ ret = is_tps_locked(tnr_dmd);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0d);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x13, rdata, 2);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ slvt_unfreeze_reg(tnr_dmd);
+
+ *reg_value = (rdata[0] << 8) | rdata[1];
+
+ return ret;
+}
+
+static int dvbt_calc_snr(struct cxd2880_tnrdmd *tnr_dmd,
+ u32 reg_value, int *snr)
+{
+ if ((!tnr_dmd) || (!snr))
+ return -EINVAL;
+
+ if (reg_value == 0)
+ return -EBUSY;
+
+ if (reg_value > 4996)
+ reg_value = 4996;
+
+ *snr = intlog10(reg_value) - intlog10(5350 - reg_value);
+ *snr = (*snr + 839) / 1678 + 28500;
+
+ return 0;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_snr(struct cxd2880_tnrdmd *tnr_dmd,
+ int *snr)
+{
+ u16 reg_value = 0;
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!snr))
+ return -EINVAL;
+
+ *snr = -1000 * 1000;
+
+ if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SINGLE) {
+ ret = dvbt_read_snr_reg(tnr_dmd, &reg_value);
+ if (ret)
+ return ret;
+
+ ret = dvbt_calc_snr(tnr_dmd, reg_value, snr);
+ if (ret)
+ return ret;
+ } else {
+ int snr_main = 0;
+ int snr_sub = 0;
+
+ ret =
+ cxd2880_tnrdmd_dvbt_mon_snr_diver(tnr_dmd, snr, &snr_main,
+ &snr_sub);
+ if (ret)
+ return ret;
+ }
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_snr_diver(struct cxd2880_tnrdmd
+ *tnr_dmd, int *snr,
+ int *snr_main, int *snr_sub)
+{
+ u16 reg_value = 0;
+ u32 reg_value_sum = 0;
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!snr) || (!snr_main) || (!snr_sub))
+ return -EINVAL;
+
+ *snr = -1000 * 1000;
+ *snr_main = -1000 * 1000;
+ *snr_sub = -1000 * 1000;
+
+ if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN)
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ ret = dvbt_read_snr_reg(tnr_dmd, &reg_value);
+ if (!ret) {
+ ret = dvbt_calc_snr(tnr_dmd, reg_value, snr_main);
+ if (ret)
+ reg_value = 0;
+ } else if (ret == -EBUSY) {
+ reg_value = 0;
+ } else {
+ return ret;
+ }
+
+ reg_value_sum += reg_value;
+
+ ret = dvbt_read_snr_reg(tnr_dmd->diver_sub, &reg_value);
+ if (!ret) {
+ ret = dvbt_calc_snr(tnr_dmd->diver_sub, reg_value, snr_sub);
+ if (ret)
+ reg_value = 0;
+ } else if (ret == -EBUSY) {
+ reg_value = 0;
+ } else {
+ return ret;
+ }
+
+ reg_value_sum += reg_value;
+
+ ret = dvbt_calc_snr(tnr_dmd, reg_value_sum, snr);
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_sampling_offset(struct cxd2880_tnrdmd
+ *tnr_dmd, int *ppm)
+{
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!ppm))
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ {
+ u8 ctl_val_reg[5];
+ u8 nominal_rate_reg[5];
+ u32 trl_ctl_val = 0;
+ u32 trcg_nominal_rate = 0;
+ int num;
+ int den;
+ s8 diff_upper = 0;
+
+ ret = slvt_freeze_reg(tnr_dmd);
+ if (ret)
+ return ret;
+
+ ret = is_tps_locked(tnr_dmd);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0d);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x21, ctl_val_reg,
+ sizeof(ctl_val_reg));
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x04);
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x60, nominal_rate_reg,
+ sizeof(nominal_rate_reg));
+ if (ret) {
+ slvt_unfreeze_reg(tnr_dmd);
+ return ret;
+ }
+
+ slvt_unfreeze_reg(tnr_dmd);
+
+ diff_upper =
+ (ctl_val_reg[0] & 0x7f) - (nominal_rate_reg[0] & 0x7f);
+
+ if ((diff_upper < -1) || (diff_upper > 1))
+ return -EBUSY;
+
+ trl_ctl_val = ctl_val_reg[1] << 24;
+ trl_ctl_val |= ctl_val_reg[2] << 16;
+ trl_ctl_val |= ctl_val_reg[3] << 8;
+ trl_ctl_val |= ctl_val_reg[4];
+
+ trcg_nominal_rate = nominal_rate_reg[1] << 24;
+ trcg_nominal_rate |= nominal_rate_reg[2] << 16;
+ trcg_nominal_rate |= nominal_rate_reg[3] << 8;
+ trcg_nominal_rate |= nominal_rate_reg[4];
+
+ trl_ctl_val >>= 1;
+ trcg_nominal_rate >>= 1;
+
+ if (diff_upper == 1)
+ num =
+ (int)((trl_ctl_val + 0x80000000u) -
+ trcg_nominal_rate);
+ else if (diff_upper == -1)
+ num =
+ -(int)((trcg_nominal_rate + 0x80000000u) -
+ trl_ctl_val);
+ else
+ num = (int)(trl_ctl_val - trcg_nominal_rate);
+
+ den = (nominal_rate_reg[0] & 0x7f) << 24;
+ den |= nominal_rate_reg[1] << 16;
+ den |= nominal_rate_reg[2] << 8;
+ den |= nominal_rate_reg[3];
+ den = (den + (390625 / 2)) / 390625;
+
+ den >>= 1;
+
+ if (num >= 0)
+ *ppm = (num + (den / 2)) / den;
+ else
+ *ppm = (num - (den / 2)) / den;
+ }
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_sampling_offset_sub(struct
+ cxd2880_tnrdmd
+ *tnr_dmd, int *ppm)
+{
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!ppm))
+ return -EINVAL;
+
+ if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN)
+ return -EINVAL;
+
+ ret = cxd2880_tnrdmd_dvbt_mon_sampling_offset(tnr_dmd->diver_sub, ppm);
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_quality(struct cxd2880_tnrdmd *tnr_dmd,
+ u8 *quality)
+{
+ struct cxd2880_dvbt_tpsinfo tps;
+ enum cxd2880_dvbt_profile profile = CXD2880_DVBT_PROFILE_HP;
+ u32 ber = 0;
+ int sn = 0;
+ int sn_rel = 0;
+ int ber_sqi = 0;
+
+ static const int nordig_non_hdvbt_db_1000[3][5] = {
+ {5100, 6900, 7900, 8900, 9700},
+ {10800, 13100, 14600, 15600, 16000},
+ {16500, 18700, 20200, 21600, 22500}
+ };
+
+ static const int nordig_hier_hp_dvbt_db_1000[3][2][5] = {
+ {
+ {9100, 12000, 13600, 15000, 16600},
+ {10900, 14100, 15700, 19400, 20600}
+ },
+ {
+ {6800, 9100, 10400, 11900, 12700},
+ {8500, 11000, 12800, 15000, 16000}
+ },
+ {
+ {5800, 7900, 9100, 10300, 12100},
+ {8000, 9300, 11600, 13000, 12900}
+ }
+ };
+
+ static const int nordig_hier_lp_dvbt_db_1000[3][2][5] = {
+ {
+ {12500, 14300, 15300, 16300, 16900},
+ {16700, 19100, 20900, 22500, 23700}
+ },
+ {
+ {15000, 17200, 18400, 19100, 20100},
+ {18500, 21200, 23600, 24700, 25900}
+ },
+ {
+ {19500, 21400, 22500, 23700, 24700},
+ {21900, 24200, 25600, 26900, 27800}
+ }
+ };
+
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!quality))
+ return -EINVAL;
+
+ if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ ret = cxd2880_tnrdmd_dvbt_mon_tps_info(tnr_dmd, &tps);
+ if (ret)
+ return ret;
+
+ if (tps.hierarchy != CXD2880_DVBT_HIERARCHY_NON) {
+ u8 data = 0;
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x10);
+ if (ret)
+ return ret;
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x67, &data, 1);
+ if (ret)
+ return ret;
+
+ profile =
+ ((data & 0x01) ==
+ 0x01) ? CXD2880_DVBT_PROFILE_LP : CXD2880_DVBT_PROFILE_HP;
+ }
+
+ ret = cxd2880_tnrdmd_dvbt_mon_pre_rsber(tnr_dmd, &ber);
+ if (ret)
+ return ret;
+
+ ret = cxd2880_tnrdmd_dvbt_mon_snr(tnr_dmd, &sn);
+ if (ret)
+ return ret;
+
+ if ((tps.constellation >= CXD2880_DVBT_CONSTELLATION_RESERVED_3) ||
+ (tps.rate_hp >= CXD2880_DVBT_CODERATE_RESERVED_5) ||
+ (tps.rate_lp >= CXD2880_DVBT_CODERATE_RESERVED_5) ||
+ (tps.hierarchy > CXD2880_DVBT_HIERARCHY_4)) {
+ return -EPERM;
+ }
+
+ if ((tps.hierarchy != CXD2880_DVBT_HIERARCHY_NON) &&
+ (tps.constellation == CXD2880_DVBT_CONSTELLATION_QPSK))
+ return -EPERM;
+
+ if (tps.hierarchy == CXD2880_DVBT_HIERARCHY_NON)
+ sn_rel =
+ sn -
+ nordig_non_hdvbt_db_1000[tps.constellation][tps.rate_hp];
+ else if (profile == CXD2880_DVBT_PROFILE_LP)
+ sn_rel =
+ sn - nordig_hier_lp_dvbt_db_1000[tps.hierarchy - 1]
+ [tps.constellation - 1]
+ [tps.rate_lp];
+ else
+ sn_rel =
+ sn - nordig_hier_hp_dvbt_db_1000[tps.hierarchy - 1]
+ [tps.constellation - 1]
+ [tps.rate_hp];
+
+ if (ber > 10000) {
+ ber_sqi = 0;
+ } else if (ber > 1) {
+ ber_sqi = (int)((intlog10(ber) + 8388) / 16777);
+ ber_sqi = 20 * (7 * 1000 - (ber_sqi)) - 40 * 1000;
+ } else {
+ ber_sqi = 100 * 1000;
+ }
+
+ if (sn_rel < -7 * 1000) {
+ *quality = 0;
+ } else if (sn_rel < 3 * 1000) {
+ int tmp_sqi = (((sn_rel - (3 * 1000)) / 10) + 1000);
+ *quality =
+ (u8)(((tmp_sqi * ber_sqi) +
+ (1000000 / 2)) / (1000000)) & 0xff;
+ } else {
+ *quality = (u8)((ber_sqi + 500) / 1000);
+ }
+
+ if (*quality > 100)
+ *quality = 100;
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_per(struct cxd2880_tnrdmd *tnr_dmd,
+ u32 *per)
+{
+ u32 packet_error = 0;
+ u32 period = 0;
+ u8 rdata[3];
+
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!per))
+ return -EINVAL;
+
+ if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0d);
+ if (ret)
+ return ret;
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x18, rdata, 3);
+ if (ret)
+ return ret;
+
+ if ((rdata[0] & 0x01) == 0)
+ return -EBUSY;
+
+ packet_error = (rdata[1] << 8) | rdata[2];
+
+ ret = tnr_dmd->io->write_reg(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x10);
+ if (ret)
+ return ret;
+
+ ret = tnr_dmd->io->read_regs(tnr_dmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x5c, rdata, 1);
+ if (ret)
+ return ret;
+
+ period = 1U << (rdata[0] & 0x0f);
+
+ if ((period == 0) || (packet_error > period))
+ return -EBUSY;
+
+ {
+ u32 div = 0;
+ u32 Q = 0;
+ u32 R = 0;
+
+ div = period;
+
+ Q = (packet_error * 1000) / div;
+ R = (packet_error * 1000) % div;
+
+ R *= 1000;
+ Q = Q * 1000 + R / div;
+ R = R % div;
+
+ if ((div != 1) && (div / 2 <= R))
+ *per = Q + 1;
+ else
+ *per = Q;
+ }
+
+ return ret;
+}
+
+static int dvbt_calc_ssi(struct cxd2880_tnrdmd *tnr_dmd,
+ int rf_lvl, u8 *ssi)
+{
+ struct cxd2880_dvbt_tpsinfo tps;
+ int prel;
+ int temp_ssi = 0;
+ int ret = 0;
+
+ static const int ref_dbm_1000[3][5] = {
+ {-93000, -91000, -90000, -89000, -88000},
+ {-87000, -85000, -84000, -83000, -82000},
+ {-82000, -80000, -78000, -77000, -76000},
+ };
+
+ if ((!tnr_dmd) || (!ssi))
+ return -EINVAL;
+
+ ret = cxd2880_tnrdmd_dvbt_mon_tps_info(tnr_dmd, &tps);
+ if (ret)
+ return ret;
+
+ if ((tps.constellation >= CXD2880_DVBT_CONSTELLATION_RESERVED_3) ||
+ (tps.rate_hp >= CXD2880_DVBT_CODERATE_RESERVED_5))
+ return -EPERM;
+
+ prel = rf_lvl - ref_dbm_1000[tps.constellation][tps.rate_hp];
+
+ if (prel < -15000)
+ temp_ssi = 0;
+ else if (prel < 0)
+ temp_ssi = ((2 * (prel + 15000)) + 1500) / 3000;
+ else if (prel < 20000)
+ temp_ssi = (((4 * prel) + 500) / 1000) + 10;
+ else if (prel < 35000)
+ temp_ssi = (((2 * (prel - 20000)) + 1500) / 3000) + 90;
+ else
+ temp_ssi = 100;
+
+ *ssi = (temp_ssi > 100) ? 100 : (u8)temp_ssi;
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_ssi(struct cxd2880_tnrdmd *tnr_dmd,
+ u8 *ssi)
+{
+ int rf_lvl = 0;
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!ssi))
+ return -EINVAL;
+
+ if (tnr_dmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ ret = cxd2880_tnrdmd_mon_rf_lvl(tnr_dmd, &rf_lvl);
+ if (ret)
+ return ret;
+
+ ret = dvbt_calc_ssi(tnr_dmd, rf_lvl, ssi);
+ if (ret)
+ return ret;
+
+ return ret;
+}
+
+int cxd2880_tnrdmd_dvbt_mon_ssi_sub(struct cxd2880_tnrdmd *tnr_dmd,
+ u8 *ssi)
+{
+ int rf_lvl = 0;
+ int ret = 0;
+
+ if ((!tnr_dmd) || (!ssi))
+ return -EINVAL;
+
+ if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN)
+ return -EINVAL;
+
+ if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EPERM;
+
+ if (tnr_dmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EPERM;
+
+ ret = cxd2880_tnrdmd_mon_rf_lvl(tnr_dmd->diver_sub, &rf_lvl);
+ if (ret)
+ return ret;
+
+ ret = dvbt_calc_ssi(tnr_dmd, rf_lvl, ssi);
+ if (ret)
+ return ret;
+
+ return ret;
+}
+
+static int is_tps_locked(struct cxd2880_tnrdmd *tnr_dmd)
+{
+ u8 sync = 0;
+ u8 tslock = 0;
+ u8 early_unlock = 0;
+ int ret = 0;
+
+ if (!tnr_dmd)
+ return -EINVAL;
+
+ ret =
+ cxd2880_tnrdmd_dvbt_mon_sync_stat(tnr_dmd, &sync, &tslock,
+ &early_unlock);
+ if (ret)
+ return ret;
+
+ if (sync != 6)
+ return -EBUSY;
+
+ return 0;
+}
diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.h b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.h
new file mode 100644
index 000000000000..ce966270c69b
--- /dev/null
+++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_dvbt_mon.h
@@ -0,0 +1,106 @@
+/*
+ * cxd2880_tnrdmd_dvbt_mon.h
+ * Sony CXD2880 DVB-T2/T tuner + demodulator driver
+ * DVB-T monitor interface
+ *
+ * Copyright (C) 2016, 2017 Sony Semiconductor Solutions Corporation
+ *
+ * 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; version 2 of the License.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef CXD2880_TNRDMD_DVBT_MON_H
+#define CXD2880_TNRDMD_DVBT_MON_H
+
+#include "cxd2880_tnrdmd.h"
+#include "cxd2880_dvbt.h"
+
+int cxd2880_tnrdmd_dvbt_mon_sync_stat(struct cxd2880_tnrdmd
+ *tnr_dmd, u8 *sync_stat,
+ u8 *ts_lock_stat,
+ u8 *unlock_detected);
+
+int cxd2880_tnrdmd_dvbt_mon_sync_stat_sub(struct cxd2880_tnrdmd
+ *tnr_dmd, u8 *sync_stat,
+ u8 *unlock_detected);
+
+int cxd2880_tnrdmd_dvbt_mon_mode_guard(struct cxd2880_tnrdmd
+ *tnr_dmd,
+ enum cxd2880_dvbt_mode
+ *mode,
+ enum cxd2880_dvbt_guard
+ *guard);
+
+int cxd2880_tnrdmd_dvbt_mon_carrier_offset(struct cxd2880_tnrdmd
+ *tnr_dmd, int *offset);
+
+int cxd2880_tnrdmd_dvbt_mon_carrier_offset_sub(struct
+ cxd2880_tnrdmd
+ *tnr_dmd,
+ int *offset);
+
+int cxd2880_tnrdmd_dvbt_mon_pre_viterbiber(struct cxd2880_tnrdmd
+ *tnr_dmd, u32 *ber);
+
+int cxd2880_tnrdmd_dvbt_mon_pre_rsber(struct cxd2880_tnrdmd
+ *tnr_dmd, u32 *ber);
+
+int cxd2880_tnrdmd_dvbt_mon_tps_info(struct cxd2880_tnrdmd
+ *tnr_dmd,
+ struct cxd2880_dvbt_tpsinfo
+ *info);
+
+int cxd2880_tnrdmd_dvbt_mon_packet_error_number(struct
+ cxd2880_tnrdmd
+ *tnr_dmd,
+ u32 *pen);
+
+int cxd2880_tnrdmd_dvbt_mon_spectrum_sense(struct cxd2880_tnrdmd
+ *tnr_dmd,
+ enum
+ cxd2880_tnrdmd_spectrum_sense
+ *sense);
+
+int cxd2880_tnrdmd_dvbt_mon_snr(struct cxd2880_tnrdmd *tnr_dmd,
+ int *snr);
+
+int cxd2880_tnrdmd_dvbt_mon_snr_diver(struct cxd2880_tnrdmd
+ *tnr_dmd, int *snr,
+ int *snr_main, int *snr_sub);
+
+int cxd2880_tnrdmd_dvbt_mon_sampling_offset(struct cxd2880_tnrdmd
+ *tnr_dmd, int *ppm);
+
+int cxd2880_tnrdmd_dvbt_mon_sampling_offset_sub(struct
+ cxd2880_tnrdmd
+ *tnr_dmd,
+ int *ppm);
+
+int cxd2880_tnrdmd_dvbt_mon_quality(struct cxd2880_tnrdmd *tnr_dmd,
+ u8 *quality);
+
+int cxd2880_tnrdmd_dvbt_mon_per(struct cxd2880_tnrdmd *tnr_dmd,
+ u32 *per);
+
+int cxd2880_tnrdmd_dvbt_mon_ssi(struct cxd2880_tnrdmd *tnr_dmd,
+ u8 *ssi);
+
+int cxd2880_tnrdmd_dvbt_mon_ssi_sub(struct cxd2880_tnrdmd *tnr_dmd,
+ u8 *ssi);
+
+#endif
--
2.13.0