From: Yasunari Takiguchi <Yasunari.Takiguchi@xxxxxxxx>
This provides the main dvb frontend operation functions
for the Sony CXD2880 DVB-T2/T tuner + demodulator driver.
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>
---
[Change list]
Changes in V5
Using SPDX-License-Identifier
drivers/media/dvb-frontends/cxd2880/cxd2880_top.c
-changed define position of cxd2880_dvbt_t2_ops
-modified typo about "drvier" -> "driver"
-removed unnecessary cast
-removed unnecessary if()
-modified return error code
-removed unnecessary parentheses
-modified for "Lines should not end with a '(' "
-modified to return constant 0 from read_ber function
Changes in V4
drivers/media/dvb-frontends/cxd2880/cxd2880_top.c
-modified typo "inavlid" to "invalid" at pr_err
-removed unnecessary initialization at variable declaration
-removed unnecessary brace {}
-changed to use cxd2880_dvbt_tune and cxd2880_dvbt2_tune
instead of cxd2880_integ_dvbt_tune and cxd2880_integ_dvbt2_tune
(because we changed it so that demodulator does not
wait for locking the signal.)
Changes in V3
drivers/media/dvb-frontends/cxd2880/cxd2880_top.c
-adjusted indent spaces
-modified debugging code
-removed unnecessary cast
-modified return code
-modified coding style of if()
-modified about measurement period of PER/BER.
-changed hexadecimal code to lower case.
drivers/media/dvb-frontends/cxd2880/cxd2880_top.c | 1954 +++++++++++++++++++++
1 file changed, 1954 insertions(+)
create mode 100644 drivers/media/dvb-frontends/cxd2880/cxd2880_top.c
diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_top.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_top.c
new file mode 100644
index 000000000000..f109e9d98cc0
--- /dev/null
+++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_top.c
@@ -0,0 +1,1954 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * cxd2880_top.c
+ * Sony CXD2880 DVB-T2/T tuner + demodulator driver
+ *
+ * Copyright (C) 2016, 2017, 2018 Sony Semiconductor Solutions Corporation
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": %s: " fmt, __func__
+
+#include <linux/spi/spi.h>
+
+#include "dvb_frontend.h"
+#include "dvb_math.h"
+
+#include "cxd2880.h"
+#include "cxd2880_tnrdmd_mon.h"
+#include "cxd2880_tnrdmd_dvbt2_mon.h"
+#include "cxd2880_tnrdmd_dvbt_mon.h"
+#include "cxd2880_integ.h"
+#include "cxd2880_tnrdmd_dvbt2.h"
+#include "cxd2880_tnrdmd_dvbt.h"
+#include "cxd2880_devio_spi.h"
+#include "cxd2880_spi_device.h"
+#include "cxd2880_tnrdmd_driver_version.h"
+
+struct cxd2880_priv {
+ struct cxd2880_tnrdmd tnrdmd;
+ struct spi_device *spi;
+ struct cxd2880_io regio;
+ struct cxd2880_spi_device spi_device;
+ struct cxd2880_spi cxd2880_spi;
+ struct cxd2880_dvbt_tune_param dvbt_tune_param;
+ struct cxd2880_dvbt2_tune_param dvbt2_tune_param;
+ struct mutex *spi_mutex; /* For SPI access exclusive control */
+ unsigned long pre_ber_update;
+ unsigned long pre_ber_interval;
+ unsigned long post_ber_update;
+ unsigned long post_ber_interval;
+ unsigned long ucblock_update;
+ unsigned long ucblock_interval;
+ enum fe_status s;
+};
+
+static int cxd2880_pre_bit_err_t(struct cxd2880_tnrdmd *tnrdmd,
+ u32 *pre_bit_err, u32 *pre_bit_count)
+{
+ u8 rdata[2];
+ int ret;
+
+ if (!tnrdmd || !pre_bit_err || !pre_bit_count)
+ return -EINVAL;
+
+ if (tnrdmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnrdmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EINVAL;
+
+ if (tnrdmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EINVAL;
+
+ ret = slvt_freeze_reg(tnrdmd);
+ if (ret)
+ return ret;
+
+ ret = tnrdmd->io->write_reg(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x10);
+ if (ret) {
+ slvt_unfreeze_reg(tnrdmd);
+ return ret;
+ }
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x39, rdata, 1);
+ if (ret) {
+ slvt_unfreeze_reg(tnrdmd);
+ return ret;
+ }
+
+ if ((rdata[0] & 0x01) == 0) {
+ slvt_unfreeze_reg(tnrdmd);
+ return -EAGAIN;
+ }
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x22, rdata, 2);
+ if (ret) {
+ slvt_unfreeze_reg(tnrdmd);
+ return ret;
+ }
+
+ *pre_bit_err = (rdata[0] << 8) | rdata[1];
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x6f, rdata, 1);
+ if (ret) {
+ slvt_unfreeze_reg(tnrdmd);
+ return ret;
+ }
+
+ slvt_unfreeze_reg(tnrdmd);
+
+ *pre_bit_count = ((rdata[0] & 0x07) == 0) ?
+ 256 : (0x1000 << (rdata[0] & 0x07));
+
+ return 0;
+}
+
+static int cxd2880_pre_bit_err_t2(struct cxd2880_tnrdmd *tnrdmd,
+ u32 *pre_bit_err,
+ u32 *pre_bit_count)
+{
+ u32 period_exp = 0;
+ u32 n_ldpc = 0;
+ u8 data[5];
+ int ret;
+
+ if (!tnrdmd || !pre_bit_err || !pre_bit_count)
+ return -EINVAL;
+
+ if (tnrdmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnrdmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EINVAL;
+
+ if (tnrdmd->sys != CXD2880_DTV_SYS_DVBT2)
+ return -EINVAL;
+
+ ret = slvt_freeze_reg(tnrdmd);
+ if (ret)
+ return ret;
+
+ ret = tnrdmd->io->write_reg(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0b);
+ if (ret) {
+ slvt_unfreeze_reg(tnrdmd);
+ return ret;
+ }
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x3c, data, sizeof(data));
+ if (ret) {
+ slvt_unfreeze_reg(tnrdmd);
+ return ret;
+ }
+
+ if (!(data[0] & 0x01)) {
+ slvt_unfreeze_reg(tnrdmd);
+ return -EAGAIN;
+ }
+ *pre_bit_err =
+ ((data[1] & 0x0f) << 24) | (data[2] << 16) | (data[3] << 8) | data[4];
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0xa0, data, 1);
+ if (ret) {
+ slvt_unfreeze_reg(tnrdmd);
+ return ret;
+ }
+
+ if (((enum cxd2880_dvbt2_plp_fec)(data[0] & 0x03)) ==
+ CXD2880_DVBT2_FEC_LDPC_16K)
+ n_ldpc = 16200;
+ else
+ n_ldpc = 64800;
+ slvt_unfreeze_reg(tnrdmd);
+
+ ret = tnrdmd->io->write_reg(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x20);
+ if (ret)
+ return ret;
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x6f, data, 1);
+ if (ret)
+ return ret;
+
+ period_exp = data[0] & 0x0f;
+
+ *pre_bit_count = (1U << period_exp) * n_ldpc;
+
+ return 0;
+}
+
+static int cxd2880_post_bit_err_t(struct cxd2880_tnrdmd *tnrdmd,
+ u32 *post_bit_err,
+ u32 *post_bit_count)
+{
+ u8 rdata[3];
+ u32 bit_error = 0;
+ u32 period_exp = 0;
+ int ret;
+
+ if (!tnrdmd || !post_bit_err || !post_bit_count)
+ return -EINVAL;
+
+ if (tnrdmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnrdmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EINVAL;
+
+ if (tnrdmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EINVAL;
+
+ ret = tnrdmd->io->write_reg(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0d);
+ if (ret)
+ return ret;
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x15, rdata, 3);
+ if (ret)
+ return ret;
+
+ if ((rdata[0] & 0x40) == 0)
+ return -EAGAIN;
+
+ *post_bit_err = ((rdata[0] & 0x3f) << 16) | (rdata[1] << 8) | rdata[2];
+
+ ret = tnrdmd->io->write_reg(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x10);
+ if (ret)
+ return ret;
+
+ ret = tnrdmd->io->read_regs(tnrdmd->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 -EAGAIN;
+
+ *post_bit_count = (1U << period_exp) * 204 * 8;
+
+ return 0;
+}
+
+static int cxd2880_post_bit_err_t2(struct cxd2880_tnrdmd *tnrdmd,
+ u32 *post_bit_err,
+ u32 *post_bit_count)
+{
+ u32 period_exp = 0;
+ u32 n_bch = 0;
+ u8 data[3];
+ enum cxd2880_dvbt2_plp_fec plp_fec_type =
+ CXD2880_DVBT2_FEC_LDPC_16K;
+ enum cxd2880_dvbt2_plp_code_rate plp_code_rate =
+ CXD2880_DVBT2_R1_2;
+ int ret;
+ static const u16 n_bch_bits_lookup[2][8] = {
+ {7200, 9720, 10800, 11880, 12600, 13320, 5400, 6480},
+ {32400, 38880, 43200, 48600, 51840, 54000, 21600, 25920}
+ };
+
+ if (!tnrdmd || !post_bit_err || !post_bit_count)
+ return -EINVAL;
+
+ if (tnrdmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnrdmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EINVAL;
+
+ if (tnrdmd->sys != CXD2880_DTV_SYS_DVBT2)
+ return -EINVAL;
+
+ ret = slvt_freeze_reg(tnrdmd);
+ if (ret)
+ return ret;
+
+ ret = tnrdmd->io->write_reg(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0b);
+ if (ret) {
+ slvt_unfreeze_reg(tnrdmd);
+ return ret;
+ }
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x15, data, 3);
+ if (ret) {
+ slvt_unfreeze_reg(tnrdmd);
+ return ret;
+ }
+
+ if (!(data[0] & 0x40)) {
+ slvt_unfreeze_reg(tnrdmd);
+ return -EAGAIN;
+ }
+
+ *post_bit_err =
+ ((data[0] & 0x3f) << 16) | (data[1] << 8) | data[2];
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x9d, data, 1);
+ if (ret) {
+ slvt_unfreeze_reg(tnrdmd);
+ return ret;
+ }
+
+ plp_code_rate =
+ (enum cxd2880_dvbt2_plp_code_rate)(data[0] & 0x07);
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0xa0, data, 1);
+ if (ret) {
+ slvt_unfreeze_reg(tnrdmd);
+ return ret;
+ }
+
+ plp_fec_type = (enum cxd2880_dvbt2_plp_fec)(data[0] & 0x03);
+
+ slvt_unfreeze_reg(tnrdmd);
+
+ ret = tnrdmd->io->write_reg(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x20);
+ if (ret)
+ return ret;
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x72, data, 1);
+ if (ret)
+ return ret;
+
+ period_exp = data[0] & 0x0f;
+
+ if (plp_fec_type > CXD2880_DVBT2_FEC_LDPC_64K ||
+ plp_code_rate > CXD2880_DVBT2_R2_5)
+ return -EAGAIN;
+
+ n_bch = n_bch_bits_lookup[plp_fec_type][plp_code_rate];
+
+ if (*post_bit_err > ((1U << period_exp) * n_bch))
+ return -EAGAIN;
+
+ *post_bit_count = (1U << period_exp) * n_bch;
+
+ return 0;
+}
+
+static int cxd2880_read_block_err_t(struct cxd2880_tnrdmd *tnrdmd,
+ u32 *block_err,
+ u32 *block_count)
+{
+ u8 rdata[3];
+ int ret;
+
+ if (!tnrdmd || !block_err || !block_count)
+ return -EINVAL;
+
+ if (tnrdmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnrdmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EINVAL;
+
+ if (tnrdmd->sys != CXD2880_DTV_SYS_DVBT)
+ return -EINVAL;
+
+ ret = tnrdmd->io->write_reg(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0d);
+ if (ret)
+ return ret;
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x18, rdata, 3);
+ if (ret)
+ return ret;
+
+ if ((rdata[0] & 0x01) == 0)
+ return -EAGAIN;
+
+ *block_err = (rdata[1] << 8) | rdata[2];
+
+ ret = tnrdmd->io->write_reg(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x10);
+ if (ret)
+ return ret;
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x5c, rdata, 1);
+ if (ret)
+ return ret;
+
+ *block_count = 1U << (rdata[0] & 0x0f);
+
+ if ((*block_count == 0) || (*block_err > *block_count))
+ return -EAGAIN;
+
+ return 0;
+}
+
+static int cxd2880_read_block_err_t2(struct cxd2880_tnrdmd *tnrdmd,
+ u32 *block_err,
+ u32 *block_count)
+{
+ u8 rdata[3];
+ int ret;
+
+ if (!tnrdmd || !block_err || !block_count)
+ return -EINVAL;
+
+ if (tnrdmd->diver_mode == CXD2880_TNRDMD_DIVERMODE_SUB)
+ return -EINVAL;
+
+ if (tnrdmd->state != CXD2880_TNRDMD_STATE_ACTIVE)
+ return -EINVAL;
+ if (tnrdmd->sys != CXD2880_DTV_SYS_DVBT2)
+ return -EINVAL;
+
+ ret = tnrdmd->io->write_reg(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x0b);
+ if (ret)
+ return ret;
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x18, rdata, 3);
+ if (ret)
+ return ret;
+
+ if ((rdata[0] & 0x01) == 0)
+ return -EAGAIN;
+
+ *block_err = (rdata[1] << 8) | rdata[2];
+
+ ret = tnrdmd->io->write_reg(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x24);
+ if (ret)
+ return ret;
+
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0xdc, rdata, 1);
+ if (ret)
+ return ret;
+
+ *block_count = 1U << (rdata[0] & 0x0f);
+
+ if ((*block_count == 0) || (*block_err > *block_count))
+ return -EAGAIN;
+
+ return 0;
+}
+
+static void cxd2880_release(struct dvb_frontend *fe)
+{
+ struct cxd2880_priv *priv = NULL;
+
+ if (!fe) {
+ pr_err("invalid arg.\n");
+ return;
+ }
+ priv = fe->demodulator_priv;
+ kfree(priv);
+}
+
+static int cxd2880_init(struct dvb_frontend *fe)
+{
+ int ret;
+ struct cxd2880_priv *priv = NULL;
+ struct cxd2880_tnrdmd_create_param create_param;
+
+ if (!fe) {
+ pr_err("invalid arg.\n");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+
+ create_param.ts_output_if = CXD2880_TNRDMD_TSOUT_IF_SPI;
+ create_param.xtal_share_type = CXD2880_TNRDMD_XTAL_SHARE_NONE;
+ create_param.en_internal_ldo = 1;
+ create_param.xosc_cap = 18;
+ create_param.xosc_i = 8;
+ create_param.stationary_use = 1;
+
+ mutex_lock(priv->spi_mutex);
+ if (priv->tnrdmd.io != &priv->regio) {
+ ret = cxd2880_tnrdmd_create(&priv->tnrdmd,
+ &priv->regio, &create_param);
+ if (ret) {
+ mutex_unlock(priv->spi_mutex);
+ pr_info("cxd2880 tnrdmd create failed %d\n", ret);
+ return ret;
+ }
+ }
+ ret = cxd2880_integ_init(&priv->tnrdmd);
+ if (ret) {
+ mutex_unlock(priv->spi_mutex);
+ pr_err("cxd2880 integ init failed %d\n", ret);
+ return ret;
+ }
+ mutex_unlock(priv->spi_mutex);
+
+ pr_debug("OK.\n");
+
+ return ret;
+}
+
+static int cxd2880_sleep(struct dvb_frontend *fe)
+{
+ int ret;
+ struct cxd2880_priv *priv = NULL;
+
+ if (!fe) {
+ pr_err("invalid arg\n");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_tnrdmd_sleep(&priv->tnrdmd);
+ mutex_unlock(priv->spi_mutex);
+
+ pr_debug("tnrdmd_sleep ret %d\n", ret);
+
+ return ret;
+}
+
+static int cxd2880_read_signal_strength(struct dvb_frontend *fe,
+ u16 *strength)
+{
+ int ret;
+ struct cxd2880_priv *priv = NULL;
+ struct dtv_frontend_properties *c = NULL;
+ int level = 0;
+
+ if (!fe || !strength) {
+ pr_err("invalid arg\n");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+ c = &fe->dtv_property_cache;
+
+ mutex_lock(priv->spi_mutex);
+ if (c->delivery_system == SYS_DVBT ||
+ c->delivery_system == SYS_DVBT2) {
+ ret = cxd2880_tnrdmd_mon_rf_lvl(&priv->tnrdmd, &level);
+ } else {
+ pr_debug("invalid system\n");
+ mutex_unlock(priv->spi_mutex);
+ return -EINVAL;
+ }
+ mutex_unlock(priv->spi_mutex);
+
+ level /= 125;
+ /*
+ * level should be between -105dBm and -30dBm.
+ * E.g. they should be between:
+ * -105000/125 = -840 and -30000/125 = -240
+ */
+ level = clamp(level, -840, -240);
+ /* scale value to 0x0000-0xffff */
+ *strength = ((level + 840) * 0xffff) / (-240 + 840);
+
+ if (ret)
+ pr_debug("ret = %d\n", ret);
+
+ return ret;
+}
+
+static int cxd2880_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+ int ret;
+ int snrvalue = 0;
+ struct cxd2880_priv *priv = NULL;
+ struct dtv_frontend_properties *c = NULL;
+
+ if (!fe || !snr) {
+ pr_err("invalid arg\n");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+ c = &fe->dtv_property_cache;
+
+ mutex_lock(priv->spi_mutex);
+ if (c->delivery_system == SYS_DVBT) {
+ ret = cxd2880_tnrdmd_dvbt_mon_snr(&priv->tnrdmd,
+ &snrvalue);
+ } else if (c->delivery_system == SYS_DVBT2) {
+ ret = cxd2880_tnrdmd_dvbt2_mon_snr(&priv->tnrdmd,
+ &snrvalue);
+ } else {
+ pr_err("invalid system\n");
+ mutex_unlock(priv->spi_mutex);
+ return -EINVAL;
+ }
+ mutex_unlock(priv->spi_mutex);
+
+ if (snrvalue < 0)
+ snrvalue = 0;
+ *snr = snrvalue;
+
+ if (ret)
+ pr_debug("ret = %d\n", ret);
+
+ return ret;
+}
+
+static int cxd2880_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
+{
+ int ret;
+ struct cxd2880_priv *priv = NULL;
+ struct dtv_frontend_properties *c = NULL;
+
+ if (!fe || !ucblocks) {
+ pr_err("invalid arg\n");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+ c = &fe->dtv_property_cache;
+
+ mutex_lock(priv->spi_mutex);
+ if (c->delivery_system == SYS_DVBT) {
+ ret = cxd2880_tnrdmd_dvbt_mon_packet_error_number(&priv->tnrdmd,
+ ucblocks);
+ } else if (c->delivery_system == SYS_DVBT2) {
+ ret = cxd2880_tnrdmd_dvbt2_mon_packet_error_number(&priv->tnrdmd,
+ ucblocks);
+ } else {
+ pr_err("invalid system\n");
+ mutex_unlock(priv->spi_mutex);
+ return -EINVAL;
+ }
+ mutex_unlock(priv->spi_mutex);
+
+ if (ret)
+ pr_debug("ret = %d\n", ret);
+
+ return ret;
+}
+
+static int cxd2880_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+ *ber = 0;
+
+ return 0;
+}
+
+static int cxd2880_set_ber_per_period_t(struct dvb_frontend *fe)
+{
+ int ret;
+ struct dtv_frontend_properties *c;
+ struct cxd2880_priv *priv;
+ struct cxd2880_dvbt_tpsinfo info;
+ enum cxd2880_dtv_bandwidth bw = CXD2880_DTV_BW_1_7_MHZ;
+ u32 pre_ber_rate = 0;
+ u32 post_ber_rate = 0;
+ u32 ucblock_rate = 0;
+ u32 mes_exp = 0;
+ static const int cr_table[5] = {31500, 42000, 47250, 52500, 55125};
+ static const int denominator_tbl[4] = {125664, 129472, 137088, 152320};
+
+ if (!fe) {
+ pr_err("invalid arg\n");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+ c = &fe->dtv_property_cache;
+ bw = priv->dvbt_tune_param.bandwidth;
+
+ ret = cxd2880_tnrdmd_dvbt_mon_tps_info(&priv->tnrdmd,
+ &info);
+ if (ret) {
+ pr_err("tps monitor error ret = %d\n", ret);
+ info.hierarchy = CXD2880_DVBT_HIERARCHY_NON;
+ info.constellation = CXD2880_DVBT_CONSTELLATION_QPSK;
+ info.guard = CXD2880_DVBT_GUARD_1_4;
+ info.rate_hp = CXD2880_DVBT_CODERATE_1_2;
+ info.rate_lp = CXD2880_DVBT_CODERATE_1_2;
+ }
+
+ if (info.hierarchy == CXD2880_DVBT_HIERARCHY_NON) {
+ pre_ber_rate = 63000000 * bw * (info.constellation * 2 + 2) /
+ denominator_tbl[info.guard];
+
+ post_ber_rate = 1000 * cr_table[info.rate_hp] * bw *
+ (info.constellation * 2 + 2) /
+ denominator_tbl[info.guard];
+
+ ucblock_rate = 875 * cr_table[info.rate_hp] * bw *
+ (info.constellation * 2 + 2) /
+ denominator_tbl[info.guard];
+ } else {
+ u8 data = 0;
+ struct cxd2880_tnrdmd *tnrdmd = &priv->tnrdmd;
+
+ ret = tnrdmd->io->write_reg(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x00, 0x10);
+ if (!ret) {
+ ret = tnrdmd->io->read_regs(tnrdmd->io,
+ CXD2880_IO_TGT_DMD,
+ 0x67, &data, 1);
+ if (ret)
+ data = 0x00;
+ } else {
+ data = 0x00;
+ }
+
+ if (data & 0x01) { /* Low priority */
+ pre_ber_rate =
+ 63000000 * bw * (info.constellation * 2 + 2) /
+ denominator_tbl[info.guard];
+
+ post_ber_rate = 1000 * cr_table[info.rate_lp] * bw *
+ (info.constellation * 2 + 2) /
+ denominator_tbl[info.guard];
+
+ ucblock_rate = (1000 * 7 / 8) * cr_table[info.rate_lp] *
+ bw * (info.constellation * 2 + 2) /
+ denominator_tbl[info.guard];
+ } else { /* High priority */
+ pre_ber_rate =
+ 63000000 * bw * 2 / denominator_tbl[info.guard];
+
+ post_ber_rate = 1000 * cr_table[info.rate_hp] * bw * 2 /
+ denominator_tbl[info.guard];
+
+ ucblock_rate = (1000 * 7 / 8) * cr_table[info.rate_hp] *
+ bw * 2 / denominator_tbl[info.guard];
+ }
+ }
+
+ mes_exp = pre_ber_rate < 8192 ? 8 : intlog2(pre_ber_rate) >> 24;
+ priv->pre_ber_interval =
+ ((1U << mes_exp) * 1000 + (pre_ber_rate / 2)) /
+ pre_ber_rate;
+ cxd2880_tnrdmd_set_cfg(&priv->tnrdmd,
+ CXD2880_TNRDMD_CFG_DVBT_VBER_PERIOD,
+ mes_exp == 8 ? 0 : mes_exp - 12);
+
+ mes_exp = intlog2(post_ber_rate) >> 24;
+ priv->post_ber_interval =
+ ((1U << mes_exp) * 1000 + (post_ber_rate / 2)) /
+ post_ber_rate;
+ cxd2880_tnrdmd_set_cfg(&priv->tnrdmd,
+ CXD2880_TNRDMD_CFG_DVBT_BERN_PERIOD,
+ mes_exp);
+
+ mes_exp = intlog2(ucblock_rate) >> 24;
+ priv->ucblock_interval =
+ ((1U << mes_exp) * 1000 + (ucblock_rate / 2)) /
+ ucblock_rate;
+ cxd2880_tnrdmd_set_cfg(&priv->tnrdmd,
+ CXD2880_TNRDMD_CFG_DVBT_PER_MES,
+ mes_exp);
+
+ return 0;
+}
+
+static int cxd2880_set_ber_per_period_t2(struct dvb_frontend *fe)
+{
+ int ret;
+ struct dtv_frontend_properties *c;
+ struct cxd2880_priv *priv;
+ struct cxd2880_dvbt2_l1pre l1pre;
+ struct cxd2880_dvbt2_l1post l1post;
+ struct cxd2880_dvbt2_plp plp;
+ struct cxd2880_dvbt2_bbheader bbheader;
+ enum cxd2880_dtv_bandwidth bw = CXD2880_DTV_BW_1_7_MHZ;
+ u32 pre_ber_rate = 0;
+ u32 post_ber_rate = 0;
+ u32 ucblock_rate = 0;
+ u32 mes_exp = 0;
+ u32 term_a = 0;
+ u32 term_b = 0;
+ u32 denominator = 0;
+ static const u32 gi_tbl[7] = {32, 64, 128, 256, 8, 152, 76};
+ static const u8 n_tbl[6] = {8, 2, 4, 16, 1, 1};
+ static const u8 mode_tbl[6] = {2, 8, 4, 1, 16, 32};
+ static const u32 kbch_tbl[2][8] = {
+ {6952, 9472, 10552, 11632, 12352, 13072, 5152, 6232},
+ {32128, 38608, 42960, 48328, 51568, 53760, 0, 0}
+ };
+
+ if (!fe) {
+ pr_err("invalid arg\n");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+ c = &fe->dtv_property_cache;
+ bw = priv->dvbt2_tune_param.bandwidth;
+
+ ret = cxd2880_tnrdmd_dvbt2_mon_l1_pre(&priv->tnrdmd, &l1pre);
+ if (ret) {
+ pr_info("l1 pre error\n");
+ goto error_ber_setting;
+ }
+
+ ret = cxd2880_tnrdmd_dvbt2_mon_active_plp(&priv->tnrdmd,
+ CXD2880_DVBT2_PLP_DATA, &plp);
+ if (ret) {
+ pr_info("plp info error\n");
+ goto error_ber_setting;
+ }
+
+ ret = cxd2880_tnrdmd_dvbt2_mon_l1_post(&priv->tnrdmd, &l1post);
+ if (ret) {
+ pr_info("l1 post error\n");
+ goto error_ber_setting;
+ }
+
+ term_a =
+ (mode_tbl[l1pre.fft_mode] * (1024 + gi_tbl[l1pre.gi])) *
+ (l1pre.num_symbols + n_tbl[l1pre.fft_mode]) + 2048;
+
+ if (l1pre.mixed && l1post.fef_intvl) {
+ term_b = (l1post.fef_length + (l1post.fef_intvl / 2)) /
+ l1post.fef_intvl;
+ } else {
+ term_b = 0;
+ }
+
+ switch (bw) {
+ case CXD2880_DTV_BW_1_7_MHZ:
+ denominator = ((term_a + term_b) * 71 + (131 / 2)) / 131;
+ break;
+ case CXD2880_DTV_BW_5_MHZ:
+ denominator = ((term_a + term_b) * 7 + 20) / 40;
+ break;
+ case CXD2880_DTV_BW_6_MHZ:
+ denominator = ((term_a + term_b) * 7 + 24) / 48;
+ break;
+ case CXD2880_DTV_BW_7_MHZ:
+ denominator = ((term_a + term_b) + 4) / 8;
+ break;
+ case CXD2880_DTV_BW_8_MHZ:
+ default:
+ denominator = ((term_a + term_b) * 7 + 32) / 64;
+ break;
+ }
+
+ if (plp.til_type && plp.til_len) {
+ pre_ber_rate =
+ (plp.num_blocks_max * 1000000 + (denominator / 2)) /
+ denominator;
+ pre_ber_rate = (pre_ber_rate + (plp.til_len / 2)) /
+ plp.til_len;
+ } else {
+ pre_ber_rate =
+ (plp.num_blocks_max * 1000000 + (denominator / 2)) /
+ denominator;
+ }
+
+ post_ber_rate = pre_ber_rate;
+
+ mes_exp = intlog2(pre_ber_rate) >> 24;
+ priv->pre_ber_interval =
+ ((1U << mes_exp) * 1000 + (pre_ber_rate / 2)) /
+ pre_ber_rate;
+ cxd2880_tnrdmd_set_cfg(&priv->tnrdmd,
+ CXD2880_TNRDMD_CFG_DVBT2_LBER_MES,
+ mes_exp);
+
+ mes_exp = intlog2(post_ber_rate) >> 24;
+ priv->post_ber_interval =
+ ((1U << mes_exp) * 1000 + (post_ber_rate / 2)) /
+ post_ber_rate;
+ cxd2880_tnrdmd_set_cfg(&priv->tnrdmd,
+ CXD2880_TNRDMD_CFG_DVBT2_BBER_MES,
+ mes_exp);
+
+ ret = cxd2880_tnrdmd_dvbt2_mon_bbheader(&priv->tnrdmd,
+ CXD2880_DVBT2_PLP_DATA,
+ &bbheader);
+ if (ret) {
+ pr_info("bb header error\n");
+ goto error_ucblock_setting;
+ }
+
+ if (bbheader.plp_mode == CXD2880_DVBT2_PLP_MODE_NM) {
+ if (!bbheader.issy_indicator) {
+ ucblock_rate =
+ (pre_ber_rate * kbch_tbl[plp.fec][plp.plp_cr] +
+ 752) / 1504;
+ } else {
+ ucblock_rate =
+ (pre_ber_rate * kbch_tbl[plp.fec][plp.plp_cr] +
+ 764) / 1528;
+ }
+ } else if (bbheader.plp_mode == CXD2880_DVBT2_PLP_MODE_HEM) {
+ ucblock_rate =
+ (pre_ber_rate * kbch_tbl[plp.fec][plp.plp_cr] + 748) /
+ 1496;
+ } else {
+ pr_info("plp mode is not Normal or HEM\n");
+ goto error_ucblock_setting;
+ }
+
+ mes_exp = intlog2(ucblock_rate) >> 24;
+ priv->ucblock_interval =
+ ((1U << mes_exp) * 1000 + (ucblock_rate / 2)) /
+ ucblock_rate;
+ cxd2880_tnrdmd_set_cfg(&priv->tnrdmd,
+ CXD2880_TNRDMD_CFG_DVBT2_PER_MES,
+ mes_exp);
+
+ return 0;
+
+error_ber_setting:
+ priv->pre_ber_interval = 1000;
+ cxd2880_tnrdmd_set_cfg(&priv->tnrdmd,
+ CXD2880_TNRDMD_CFG_DVBT2_LBER_MES, 0);
+
+ priv->post_ber_interval = 1000;
+ cxd2880_tnrdmd_set_cfg(&priv->tnrdmd,
+ CXD2880_TNRDMD_CFG_DVBT2_BBER_MES, 0);
+
+error_ucblock_setting:
+ priv->ucblock_interval = 1000;
+ cxd2880_tnrdmd_set_cfg(&priv->tnrdmd,
+ CXD2880_TNRDMD_CFG_DVBT2_PER_MES, 8);
+
+ return 0;
+}
+
+static int cxd2880_dvbt_tune(struct cxd2880_tnrdmd *tnr_dmd,
+ struct cxd2880_dvbt_tune_param
+ *tune_param)
+{
+ int ret;
+
+ 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 -EINVAL;
+
+ 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 -ENOTTY;
+ }
+
+ 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);
+
+ return cxd2880_tnrdmd_dvbt_tune2(tnr_dmd, tune_param);
+}
+
+static int cxd2880_dvbt2_tune(struct cxd2880_tnrdmd *tnr_dmd,
+ struct cxd2880_dvbt2_tune_param
+ *tune_param)
+{
+ int ret;
+
+ 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 -EINVAL;
+
+ atomic_set(&tnr_dmd->cancel, 0);
+
+ if (tune_param->bandwidth != CXD2880_DTV_BW_1_7_MHZ &&
+ 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 -ENOTTY;
+ }
+
+ if (tune_param->profile != CXD2880_DVBT2_PROFILE_BASE &&
+ tune_param->profile != CXD2880_DVBT2_PROFILE_LITE)
+ return -EINVAL;
+
+ ret = cxd2880_tnrdmd_dvbt2_tune1(tnr_dmd, tune_param);
+ if (ret)
+ return ret;
+
+ usleep_range(CXD2880_TNRDMD_WAIT_AGC_STABLE * 10000,
+ CXD2880_TNRDMD_WAIT_AGC_STABLE * 10000 + 1000);
+
+ return cxd2880_tnrdmd_dvbt2_tune2(tnr_dmd, tune_param);
+}
+
+static int cxd2880_set_frontend(struct dvb_frontend *fe)
+{
+ int ret;
+ struct dtv_frontend_properties *c;
+ struct cxd2880_priv *priv;
+ enum cxd2880_dtv_bandwidth bw = CXD2880_DTV_BW_1_7_MHZ;
+
+ if (!fe) {
+ pr_err("invalid arg\n");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+ c = &fe->dtv_property_cache;
+
+ c->pre_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->pre_bit_error.stat[0].uvalue = 0;
+ c->pre_bit_error.len = 1;
+ c->pre_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->pre_bit_count.stat[0].uvalue = 0;
+ c->pre_bit_count.len = 1;
+ c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->post_bit_error.stat[0].uvalue = 0;
+ c->post_bit_error.len = 1;
+ c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->post_bit_count.stat[0].uvalue = 0;
+ c->post_bit_count.len = 1;
+ c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->block_error.stat[0].uvalue = 0;
+ c->block_error.len = 1;
+ c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->block_count.stat[0].uvalue = 0;
+ c->block_count.len = 1;
+
+ switch (c->bandwidth_hz) {
+ case 1712000:
+ bw = CXD2880_DTV_BW_1_7_MHZ;
+ break;
+ case 5000000:
+ bw = CXD2880_DTV_BW_5_MHZ;
+ break;
+ case 6000000:
+ bw = CXD2880_DTV_BW_6_MHZ;
+ break;
+ case 7000000:
+ bw = CXD2880_DTV_BW_7_MHZ;
+ break;
+ case 8000000:
+ bw = CXD2880_DTV_BW_8_MHZ;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ priv->s = 0;
+
+ pr_info("sys:%d freq:%d bw:%d\n",
+ c->delivery_system, c->frequency, bw);
+ mutex_lock(priv->spi_mutex);
+ if (c->delivery_system == SYS_DVBT) {
+ priv->tnrdmd.sys = CXD2880_DTV_SYS_DVBT;
+ priv->dvbt_tune_param.center_freq_khz = c->frequency / 1000;
+ priv->dvbt_tune_param.bandwidth = bw;
+ priv->dvbt_tune_param.profile = CXD2880_DVBT_PROFILE_HP;
+ ret = cxd2880_dvbt_tune(&priv->tnrdmd,
+ &priv->dvbt_tune_param);
+ } else if (c->delivery_system == SYS_DVBT2) {
+ priv->tnrdmd.sys = CXD2880_DTV_SYS_DVBT2;
+ priv->dvbt2_tune_param.center_freq_khz = c->frequency / 1000;
+ priv->dvbt2_tune_param.bandwidth = bw;
+ priv->dvbt2_tune_param.data_plp_id = (u16)c->stream_id;
+ priv->dvbt2_tune_param.profile = CXD2880_DVBT2_PROFILE_BASE;
+ ret = cxd2880_dvbt2_tune(&priv->tnrdmd,
+ &priv->dvbt2_tune_param);
+ } else {
+ pr_err("invalid system\n");
+ mutex_unlock(priv->spi_mutex);
+ return -EINVAL;
+ }
+ mutex_unlock(priv->spi_mutex);
+
+ pr_info("tune result %d\n", ret);
+
+ return ret;
+}
+
+static int cxd2880_get_stats(struct dvb_frontend *fe,
+ enum fe_status status)
+{
+ struct cxd2880_priv *priv = NULL;
+ struct dtv_frontend_properties *c = NULL;
+ u32 pre_bit_err = 0, pre_bit_count = 0;
+ u32 post_bit_err = 0, post_bit_count = 0;
+ u32 block_err = 0, block_count = 0;
+ int ret;
+
+ if (!fe) {
+ pr_err("invalid arg\n");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+ c = &fe->dtv_property_cache;
+
+ if (!(status & FE_HAS_LOCK)) {
+ c->pre_bit_error.len = 1;
+ c->pre_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->pre_bit_count.len = 1;
+ c->pre_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->post_bit_error.len = 1;
+ c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->post_bit_count.len = 1;
+ c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->block_error.len = 1;
+ c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->block_count.len = 1;
+ c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+
+ return 0;
+ }
+
+ if (time_after(jiffies, priv->pre_ber_update)) {
+ priv->pre_ber_update =
+ jiffies + msecs_to_jiffies(priv->pre_ber_interval);
+ if (c->delivery_system == SYS_DVBT) {
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_pre_bit_err_t(&priv->tnrdmd,
+ &pre_bit_err,
+ &pre_bit_count);
+ mutex_unlock(priv->spi_mutex);
+ } else if (c->delivery_system == SYS_DVBT2) {
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_pre_bit_err_t2(&priv->tnrdmd,
+ &pre_bit_err,
+ &pre_bit_count);
+ mutex_unlock(priv->spi_mutex);
+ } else {
+ return -EINVAL;
+ }
+
+ if (!ret) {
+ c->pre_bit_error.len = 1;
+ c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER;
+ c->pre_bit_error.stat[0].uvalue += pre_bit_err;
+ c->pre_bit_count.len = 1;
+ c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER;
+ c->pre_bit_count.stat[0].uvalue += pre_bit_count;
+ } else {
+ c->pre_bit_error.len = 1;
+ c->pre_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->pre_bit_count.len = 1;
+ c->pre_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ pr_debug("pre_bit_error_t failed %d\n", ret);
+ }
+ }
+
+ if (time_after(jiffies, priv->post_ber_update)) {
+ priv->post_ber_update =
+ jiffies + msecs_to_jiffies(priv->post_ber_interval);
+ if (c->delivery_system == SYS_DVBT) {
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_post_bit_err_t(&priv->tnrdmd,
+ &post_bit_err,
+ &post_bit_count);
+ mutex_unlock(priv->spi_mutex);
+ } else if (c->delivery_system == SYS_DVBT2) {
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_post_bit_err_t2(&priv->tnrdmd,
+ &post_bit_err,
+ &post_bit_count);
+ mutex_unlock(priv->spi_mutex);
+ } else {
+ return -EINVAL;
+ }
+
+ if (!ret) {
+ c->post_bit_error.len = 1;
+ c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
+ c->post_bit_error.stat[0].uvalue += post_bit_err;
+ c->post_bit_count.len = 1;
+ c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
+ c->post_bit_count.stat[0].uvalue += post_bit_count;
+ } else {
+ c->post_bit_error.len = 1;
+ c->post_bit_error.stat[0].scale =
+ FE_SCALE_NOT_AVAILABLE;
+ c->post_bit_count.len = 1;
+ c->post_bit_count.stat[0].scale =
+ FE_SCALE_NOT_AVAILABLE;
+ pr_debug("post_bit_err_t %d\n", ret);
+ }
+ }
+
+ if (time_after(jiffies, priv->ucblock_update)) {
+ priv->ucblock_update =
+ jiffies + msecs_to_jiffies(priv->ucblock_interval);
+ if (c->delivery_system == SYS_DVBT) {
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_read_block_err_t(&priv->tnrdmd,
+ &block_err,
+ &block_count);
+ mutex_unlock(priv->spi_mutex);
+ } else if (c->delivery_system == SYS_DVBT2) {
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_read_block_err_t2(&priv->tnrdmd,
+ &block_err,
+ &block_count);
+ mutex_unlock(priv->spi_mutex);
+ } else {
+ return -EINVAL;
+ }
+ if (!ret) {
+ c->block_error.len = 1;
+ c->block_error.stat[0].scale = FE_SCALE_COUNTER;
+ c->block_error.stat[0].uvalue += block_err;
+ c->block_count.len = 1;
+ c->block_count.stat[0].scale = FE_SCALE_COUNTER;
+ c->block_count.stat[0].uvalue += block_count;
+ } else {
+ c->block_error.len = 1;
+ c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ c->block_count.len = 1;
+ c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ pr_debug("read_block_err_t %d\n", ret);
+ }
+ }
+
+ return 0;
+}
+
+static int cxd2880_check_l1post_plp(struct dvb_frontend *fe)
+{
+ u8 valid = 0;
+ u8 plp_not_found;
+ int ret;
+ struct cxd2880_priv *priv = NULL;
+
+ if (!fe) {
+ pr_err("invalid arg\n");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+
+ ret = cxd2880_tnrdmd_dvbt2_check_l1post_valid(&priv->tnrdmd,
+ &valid);
+ if (ret)
+ return ret;
+
+ if (!valid)
+ return -EAGAIN;
+
+ ret = cxd2880_tnrdmd_dvbt2_mon_data_plp_error(&priv->tnrdmd,
+ &plp_not_found);
+ if (ret)
+ return ret;
+
+ if (plp_not_found) {
+ priv->dvbt2_tune_param.tune_info =
+ CXD2880_TNRDMD_DVBT2_TUNE_INFO_INVALID_PLP_ID;
+ } else {
+ priv->dvbt2_tune_param.tune_info =
+ CXD2880_TNRDMD_DVBT2_TUNE_INFO_OK;
+ }
+
+ return 0;
+}
+
+static int cxd2880_read_status(struct dvb_frontend *fe,
+ enum fe_status *status)
+{
+ int ret;
+ u8 sync = 0;
+ u8 lock = 0;
+ u8 unlock = 0;
+ struct cxd2880_priv *priv = NULL;
+ struct dtv_frontend_properties *c = NULL;
+
+ if (!fe || !status) {
+ pr_err("invalid arg\n");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+ c = &fe->dtv_property_cache;
+ *status = 0;
+
+ if (priv->tnrdmd.state == CXD2880_TNRDMD_STATE_ACTIVE) {
+ mutex_lock(priv->spi_mutex);
+ if (c->delivery_system == SYS_DVBT) {
+ ret = cxd2880_tnrdmd_dvbt_mon_sync_stat(&priv->tnrdmd,
+ &sync,
+ &lock,
+ &unlock);
+ } else if (c->delivery_system == SYS_DVBT2) {
+ ret = cxd2880_tnrdmd_dvbt2_mon_sync_stat(&priv->tnrdmd,
+ &sync,
+ &lock,
+ &unlock);
+ } else {
+ pr_err("invalid system");
+ mutex_unlock(priv->spi_mutex);
+ return -EINVAL;
+ }
+
+ mutex_unlock(priv->spi_mutex);
+ if (ret) {
+ pr_err("failed. sys = %d\n", priv->tnrdmd.sys);
+ return ret;
+ }
+
+ if (sync == 6) {
+ *status = FE_HAS_SIGNAL |
+ FE_HAS_CARRIER;
+ }
+ if (lock)
+ *status |= FE_HAS_VITERBI |
+ FE_HAS_SYNC |
+ FE_HAS_LOCK;
+ }
+
+ pr_debug("status %d\n", *status);
+
+ if (priv->s == 0 && (*status & FE_HAS_LOCK)) {
+ mutex_lock(priv->spi_mutex);
+ if (c->delivery_system == SYS_DVBT) {
+ ret = cxd2880_set_ber_per_period_t(fe);
+ priv->s = *status;
+ } else if (c->delivery_system == SYS_DVBT2) {
+ ret = cxd2880_check_l1post_plp(fe);
+ if (!ret) {
+ ret = cxd2880_set_ber_per_period_t2(fe);
+ priv->s = *status;
+ }
+ } else {
+ pr_err("invalid system\n");
+ mutex_unlock(priv->spi_mutex);
+ return -EINVAL;
+ }
+ mutex_unlock(priv->spi_mutex);
+ }
+
+ cxd2880_get_stats(fe, *status);
+ return 0;
+}
+
+static int cxd2880_tune(struct dvb_frontend *fe,
+ bool retune,
+ unsigned int mode_flags,
+ unsigned int *delay,
+ enum fe_status *status)
+{
+ int ret;
+
+ if (!fe || !delay || !status) {
+ pr_err("invalid arg.");
+ return -EINVAL;
+ }
+
+ if (retune) {
+ ret = cxd2880_set_frontend(fe);
+ if (ret) {
+ pr_err("cxd2880_set_frontend failed %d\n", ret);
+ return ret;
+ }
+ }
+
+ *delay = HZ / 5;
+
+ return cxd2880_read_status(fe, status);
+}
+
+static int cxd2880_get_frontend_t(struct dvb_frontend *fe,
+ struct dtv_frontend_properties *c)
+{
+ int ret;
+ struct cxd2880_priv *priv = NULL;
+ enum cxd2880_dvbt_mode mode = CXD2880_DVBT_MODE_2K;
+ enum cxd2880_dvbt_guard guard = CXD2880_DVBT_GUARD_1_32;
+ struct cxd2880_dvbt_tpsinfo tps;
+ enum cxd2880_tnrdmd_spectrum_sense sense;
+ u16 snr = 0;
+ int strength = 0;
+
+ if (!fe || !c) {
+ pr_err("invalid arg\n");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_tnrdmd_dvbt_mon_mode_guard(&priv->tnrdmd,
+ &mode, &guard);
+ mutex_unlock(priv->spi_mutex);
+ if (!ret) {
+ switch (mode) {
+ case CXD2880_DVBT_MODE_2K:
+ c->transmission_mode = TRANSMISSION_MODE_2K;
+ break;
+ case CXD2880_DVBT_MODE_8K:
+ c->transmission_mode = TRANSMISSION_MODE_8K;
+ break;
+ default:
+ c->transmission_mode = TRANSMISSION_MODE_2K;
+ pr_debug("transmission mode is invalid %d\n", mode);
+ break;
+ }
+ switch (guard) {
+ case CXD2880_DVBT_GUARD_1_32:
+ c->guard_interval = GUARD_INTERVAL_1_32;
+ break;
+ case CXD2880_DVBT_GUARD_1_16:
+ c->guard_interval = GUARD_INTERVAL_1_16;
+ break;
+ case CXD2880_DVBT_GUARD_1_8:
+ c->guard_interval = GUARD_INTERVAL_1_8;
+ break;
+ case CXD2880_DVBT_GUARD_1_4:
+ c->guard_interval = GUARD_INTERVAL_1_4;
+ break;
+ default:
+ c->guard_interval = GUARD_INTERVAL_1_32;
+ pr_debug("guard interval is invalid %d\n",
+ guard);
+ break;
+ }
+ } else {
+ c->transmission_mode = TRANSMISSION_MODE_2K;
+ c->guard_interval = GUARD_INTERVAL_1_32;
+ pr_debug("ModeGuard err %d\n", ret);
+ }
+
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_tnrdmd_dvbt_mon_tps_info(&priv->tnrdmd, &tps);
+ mutex_unlock(priv->spi_mutex);
+ if (!ret) {
+ switch (tps.hierarchy) {
+ case CXD2880_DVBT_HIERARCHY_NON:
+ c->hierarchy = HIERARCHY_NONE;
+ break;
+ case CXD2880_DVBT_HIERARCHY_1:
+ c->hierarchy = HIERARCHY_1;
+ break;
+ case CXD2880_DVBT_HIERARCHY_2:
+ c->hierarchy = HIERARCHY_2;
+ break;
+ case CXD2880_DVBT_HIERARCHY_4:
+ c->hierarchy = HIERARCHY_4;
+ break;
+ default:
+ c->hierarchy = HIERARCHY_NONE;
+ pr_debug("TPSInfo hierarchy is invalid %d\n",
+ tps.hierarchy);
+ break;
+ }
+
+ switch (tps.rate_hp) {
+ case CXD2880_DVBT_CODERATE_1_2:
+ c->code_rate_HP = FEC_1_2;
+ break;
+ case CXD2880_DVBT_CODERATE_2_3:
+ c->code_rate_HP = FEC_2_3;
+ break;
+ case CXD2880_DVBT_CODERATE_3_4:
+ c->code_rate_HP = FEC_3_4;
+ break;
+ case CXD2880_DVBT_CODERATE_5_6:
+ c->code_rate_HP = FEC_5_6;
+ break;
+ case CXD2880_DVBT_CODERATE_7_8:
+ c->code_rate_HP = FEC_7_8;
+ break;
+ default:
+ c->code_rate_HP = FEC_NONE;
+ pr_debug("TPSInfo rateHP is invalid %d\n",
+ tps.rate_hp);
+ break;
+ }
+ switch (tps.rate_lp) {
+ case CXD2880_DVBT_CODERATE_1_2:
+ c->code_rate_LP = FEC_1_2;
+ break;
+ case CXD2880_DVBT_CODERATE_2_3:
+ c->code_rate_LP = FEC_2_3;
+ break;
+ case CXD2880_DVBT_CODERATE_3_4:
+ c->code_rate_LP = FEC_3_4;
+ break;
+ case CXD2880_DVBT_CODERATE_5_6:
+ c->code_rate_LP = FEC_5_6;
+ break;
+ case CXD2880_DVBT_CODERATE_7_8:
+ c->code_rate_LP = FEC_7_8;
+ break;
+ default:
+ c->code_rate_LP = FEC_NONE;
+ pr_debug("TPSInfo rateLP is invalid %d\n",
+ tps.rate_lp);
+ break;
+ }
+ switch (tps.constellation) {
+ case CXD2880_DVBT_CONSTELLATION_QPSK:
+ c->modulation = QPSK;
+ break;
+ case CXD2880_DVBT_CONSTELLATION_16QAM:
+ c->modulation = QAM_16;
+ break;
+ case CXD2880_DVBT_CONSTELLATION_64QAM:
+ c->modulation = QAM_64;
+ break;
+ default:
+ c->modulation = QPSK;
+ pr_debug("TPSInfo constellation is invalid %d\n",
+ tps.constellation);
+ break;
+ }
+ } else {
+ c->hierarchy = HIERARCHY_NONE;
+ c->code_rate_HP = FEC_NONE;
+ c->code_rate_LP = FEC_NONE;
+ c->modulation = QPSK;
+ pr_debug("TPS info err %d\n", ret);
+ }
+
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_tnrdmd_dvbt_mon_spectrum_sense(&priv->tnrdmd, &sense);
+ mutex_unlock(priv->spi_mutex);
+ if (!ret) {
+ switch (sense) {
+ case CXD2880_TNRDMD_SPECTRUM_NORMAL:
+ c->inversion = INVERSION_OFF;
+ break;
+ case CXD2880_TNRDMD_SPECTRUM_INV:
+ c->inversion = INVERSION_ON;
+ break;
+ default:
+ c->inversion = INVERSION_OFF;
+ pr_debug("spectrum sense is invalid %d\n", sense);
+ break;
+ }
+ } else {
+ c->inversion = INVERSION_OFF;
+ pr_debug("spectrum_sense %d\n", ret);
+ }
+
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_tnrdmd_mon_rf_lvl(&priv->tnrdmd, &strength);
+ mutex_unlock(priv->spi_mutex);
+ if (!ret) {
+ c->strength.len = 1;
+ c->strength.stat[0].scale = FE_SCALE_DECIBEL;
+ c->strength.stat[0].svalue = strength;
+ } else {
+ c->strength.len = 1;
+ c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ pr_debug("mon_rf_lvl %d\n", ret);
+ }
+
+ ret = cxd2880_read_snr(fe, &snr);
+ if (!ret) {
+ c->cnr.len = 1;
+ c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
+ c->cnr.stat[0].svalue = snr;
+ } else {
+ c->cnr.len = 1;
+ c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ pr_debug("read_snr %d\n", ret);
+ }
+
+ return 0;
+}
+
+static int cxd2880_get_frontend_t2(struct dvb_frontend *fe,
+ struct dtv_frontend_properties *c)
+{
+ int ret;
+ struct cxd2880_priv *priv = NULL;
+ struct cxd2880_dvbt2_l1pre l1pre;
+ enum cxd2880_dvbt2_plp_code_rate coderate;
+ enum cxd2880_dvbt2_plp_constell qam;
+ enum cxd2880_tnrdmd_spectrum_sense sense;
+ u16 snr = 0;
+ int strength = 0;
+
+ if (!fe || !c) {
+ pr_err("invalid arg.\n");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_tnrdmd_dvbt2_mon_l1_pre(&priv->tnrdmd, &l1pre);
+ mutex_unlock(priv->spi_mutex);
+ if (!ret) {
+ switch (l1pre.fft_mode) {
+ case CXD2880_DVBT2_M2K:
+ c->transmission_mode = TRANSMISSION_MODE_2K;
+ break;
+ case CXD2880_DVBT2_M8K:
+ c->transmission_mode = TRANSMISSION_MODE_8K;
+ break;
+ case CXD2880_DVBT2_M4K:
+ c->transmission_mode = TRANSMISSION_MODE_4K;
+ break;
+ case CXD2880_DVBT2_M1K:
+ c->transmission_mode = TRANSMISSION_MODE_1K;
+ break;
+ case CXD2880_DVBT2_M16K:
+ c->transmission_mode = TRANSMISSION_MODE_16K;
+ break;
+ case CXD2880_DVBT2_M32K:
+ c->transmission_mode = TRANSMISSION_MODE_32K;
+ break;
+ default:
+ c->transmission_mode = TRANSMISSION_MODE_2K;
+ pr_debug("L1Pre fft_mode is invalid %d\n",
+ l1pre.fft_mode);
+ break;
+ }
+ switch (l1pre.gi) {
+ case CXD2880_DVBT2_G1_32:
+ c->guard_interval = GUARD_INTERVAL_1_32;
+ break;
+ case CXD2880_DVBT2_G1_16:
+ c->guard_interval = GUARD_INTERVAL_1_16;
+ break;
+ case CXD2880_DVBT2_G1_8:
+ c->guard_interval = GUARD_INTERVAL_1_8;
+ break;
+ case CXD2880_DVBT2_G1_4:
+ c->guard_interval = GUARD_INTERVAL_1_4;
+ break;
+ case CXD2880_DVBT2_G1_128:
+ c->guard_interval = GUARD_INTERVAL_1_128;
+ break;
+ case CXD2880_DVBT2_G19_128:
+ c->guard_interval = GUARD_INTERVAL_19_128;
+ break;
+ case CXD2880_DVBT2_G19_256:
+ c->guard_interval = GUARD_INTERVAL_19_256;
+ break;
+ default:
+ c->guard_interval = GUARD_INTERVAL_1_32;
+ pr_debug("L1Pre guard interval is invalid %d\n",
+ l1pre.gi);
+ break;
+ }
+ } else {
+ c->transmission_mode = TRANSMISSION_MODE_2K;
+ c->guard_interval = GUARD_INTERVAL_1_32;
+ pr_debug("L1Pre err %d\n", ret);
+ }
+
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_tnrdmd_dvbt2_mon_code_rate(&priv->tnrdmd,
+ CXD2880_DVBT2_PLP_DATA,
+ &coderate);
+ mutex_unlock(priv->spi_mutex);
+ if (!ret) {
+ switch (coderate) {
+ case CXD2880_DVBT2_R1_2:
+ c->fec_inner = FEC_1_2;
+ break;
+ case CXD2880_DVBT2_R3_5:
+ c->fec_inner = FEC_3_5;
+ break;
+ case CXD2880_DVBT2_R2_3:
+ c->fec_inner = FEC_2_3;
+ break;
+ case CXD2880_DVBT2_R3_4:
+ c->fec_inner = FEC_3_4;
+ break;
+ case CXD2880_DVBT2_R4_5:
+ c->fec_inner = FEC_4_5;
+ break;
+ case CXD2880_DVBT2_R5_6:
+ c->fec_inner = FEC_5_6;
+ break;
+ default:
+ c->fec_inner = FEC_NONE;
+ pr_debug("CodeRate is invalid %d\n", coderate);
+ break;
+ }
+ } else {
+ c->fec_inner = FEC_NONE;
+ pr_debug("CodeRate %d\n", ret);
+ }
+
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_tnrdmd_dvbt2_mon_qam(&priv->tnrdmd,
+ CXD2880_DVBT2_PLP_DATA,
+ &qam);
+ mutex_unlock(priv->spi_mutex);
+ if (!ret) {
+ switch (qam) {
+ case CXD2880_DVBT2_QPSK:
+ c->modulation = QPSK;
+ break;
+ case CXD2880_DVBT2_QAM16:
+ c->modulation = QAM_16;
+ break;
+ case CXD2880_DVBT2_QAM64:
+ c->modulation = QAM_64;
+ break;
+ case CXD2880_DVBT2_QAM256:
+ c->modulation = QAM_256;
+ break;
+ default:
+ c->modulation = QPSK;
+ pr_debug("QAM is invalid %d\n", qam);
+ break;
+ }
+ } else {
+ c->modulation = QPSK;
+ pr_debug("QAM %d\n", ret);
+ }
+
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_tnrdmd_dvbt2_mon_spectrum_sense(&priv->tnrdmd, &sense);
+ mutex_unlock(priv->spi_mutex);
+ if (!ret) {
+ switch (sense) {
+ case CXD2880_TNRDMD_SPECTRUM_NORMAL:
+ c->inversion = INVERSION_OFF;
+ break;
+ case CXD2880_TNRDMD_SPECTRUM_INV:
+ c->inversion = INVERSION_ON;
+ break;
+ default:
+ c->inversion = INVERSION_OFF;
+ pr_debug("spectrum sense is invalid %d\n", sense);
+ break;
+ }
+ } else {
+ c->inversion = INVERSION_OFF;
+ pr_debug("SpectrumSense %d\n", ret);
+ }
+
+ mutex_lock(priv->spi_mutex);
+ ret = cxd2880_tnrdmd_mon_rf_lvl(&priv->tnrdmd, &strength);
+ mutex_unlock(priv->spi_mutex);
+ if (!ret) {
+ c->strength.len = 1;
+ c->strength.stat[0].scale = FE_SCALE_DECIBEL;
+ c->strength.stat[0].svalue = strength;
+ } else {
+ c->strength.len = 1;
+ c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ pr_debug("mon_rf_lvl %d\n", ret);
+ }
+
+ ret = cxd2880_read_snr(fe, &snr);
+ if (!ret) {
+ c->cnr.len = 1;
+ c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
+ c->cnr.stat[0].svalue = snr;
+ } else {
+ c->cnr.len = 1;
+ c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
+ pr_debug("read_snr %d\n", ret);
+ }
+
+ return 0;
+}
+
+static int cxd2880_get_frontend(struct dvb_frontend *fe,
+ struct dtv_frontend_properties *props)
+{
+ struct cxd2880_priv *priv = NULL;
+ int ret;
+
+ if (!fe || !props) {
+ pr_err("invalid arg.");
+ return -EINVAL;
+ }
+
+ priv = fe->demodulator_priv;
+
+ pr_debug("system=%d\n", fe->dtv_property_cache.delivery_system);
+ switch (fe->dtv_property_cache.delivery_system) {
+ case SYS_DVBT:
+ ret = cxd2880_get_frontend_t(fe, props);
+ break;
+ case SYS_DVBT2:
+ ret = cxd2880_get_frontend_t2(fe, props);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static enum dvbfe_algo cxd2880_get_frontend_algo(struct dvb_frontend *fe)
+{
+ return DVBFE_ALGO_HW;
+}
+
+static struct dvb_frontend_ops cxd2880_dvbt_t2_ops = {
+ .info = {
+ .name = "Sony CXD2880",
+ .frequency_min = 174000000,
+ .frequency_max = 862000000,
+ .frequency_stepsize = 1000,
+ .caps = FE_CAN_INVERSION_AUTO |
+ FE_CAN_FEC_1_2 |
+ FE_CAN_FEC_2_3 |
+ FE_CAN_FEC_3_4 |
+ FE_CAN_FEC_4_5 |
+ FE_CAN_FEC_5_6 |
+ FE_CAN_FEC_7_8 |
+ FE_CAN_FEC_AUTO |
+ FE_CAN_QPSK |
+ FE_CAN_QAM_16 |
+ FE_CAN_QAM_32 |
+ FE_CAN_QAM_64 |
+ FE_CAN_QAM_128 |
+ FE_CAN_QAM_256 |
+ FE_CAN_QAM_AUTO |
+ FE_CAN_TRANSMISSION_MODE_AUTO |
+ FE_CAN_GUARD_INTERVAL_AUTO |
+ FE_CAN_2G_MODULATION |
+ FE_CAN_RECOVER |
+ FE_CAN_MUTE_TS,
+ },
+ .delsys = { SYS_DVBT, SYS_DVBT2 },
+
+ .release = cxd2880_release,
+ .init = cxd2880_init,
+ .sleep = cxd2880_sleep,
+ .tune = cxd2880_tune,
+ .set_frontend = cxd2880_set_frontend,
+ .get_frontend = cxd2880_get_frontend,
+ .read_status = cxd2880_read_status,
+ .read_ber = cxd2880_read_ber,
+ .read_signal_strength = cxd2880_read_signal_strength,
+ .read_snr = cxd2880_read_snr,
+ .read_ucblocks = cxd2880_read_ucblocks,
+ .get_frontend_algo = cxd2880_get_frontend_algo,
+};
+
+struct dvb_frontend *cxd2880_attach(struct dvb_frontend *fe,
+ struct cxd2880_config *cfg)
+{
+ int ret;
+ enum cxd2880_tnrdmd_chip_id chipid =
+ CXD2880_TNRDMD_CHIP_ID_UNKNOWN;
+ static struct cxd2880_priv *priv;
+ u8 data = 0;
+
+ if (!fe) {
+ pr_err("invalid arg.\n");
+ return NULL;
+ }
+
+ priv = kzalloc(sizeof(struct cxd2880_priv), GFP_KERNEL);
+ if (!priv)
+ return NULL;
+
+ priv->spi = cfg->spi;
+ priv->spi_mutex = cfg->spi_mutex;
+ priv->spi_device.spi = cfg->spi;
+
+ memcpy(&fe->ops, &cxd2880_dvbt_t2_ops,
+ sizeof(struct dvb_frontend_ops));
+
+ ret = cxd2880_spi_device_initialize(&priv->spi_device,
+ CXD2880_SPI_MODE_0,
+ 55000000);
+ if (ret) {
+ pr_err("spi_device_initialize failed. %d\n", ret);
+ kfree(priv);
+ return NULL;
+ }
+
+ ret = cxd2880_spi_device_create_spi(&priv->cxd2880_spi,
+ &priv->spi_device);
+ if (ret) {
+ pr_err("spi_device_create_spi failed. %d\n", ret);
+ kfree(priv);
+ return NULL;
+ }
+
+ ret = cxd2880_io_spi_create(&priv->regio, &priv->cxd2880_spi, 0);
+ if (ret) {
+ pr_err("io_spi_create failed. %d\n", ret);
+ kfree(priv);
+ return NULL;
+ }
+ ret = priv->regio.write_reg(&priv->regio,
+ CXD2880_IO_TGT_SYS, 0x00, 0x00);
+ if (ret) {
+ pr_err("set bank to 0x00 failed.\n");
+ kfree(priv);
+ return NULL;
+ }
+ ret = priv->regio.read_regs(&priv->regio,
+ CXD2880_IO_TGT_SYS, 0xfd, &data, 1);
+ if (ret) {
+ pr_err("read chip id failed.\n");
+ kfree(priv);
+ return NULL;
+ }
+
+ chipid = (enum cxd2880_tnrdmd_chip_id)data;
+ if (chipid != CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_0X &&
+ chipid != CXD2880_TNRDMD_CHIP_ID_CXD2880_ES1_11) {
+ pr_err("chip id invalid.\n");
+ kfree(priv);
+ return NULL;
+ }
+
+ fe->demodulator_priv = priv;
+ pr_info("CXD2880 driver version: Ver %s\n",
+ CXD2880_TNRDMD_DRIVER_VERSION);
+
+ return fe;
+}
+EXPORT_SYMBOL(cxd2880_attach);
+
+MODULE_DESCRIPTION("Sony CXD2880 DVB-T2/T tuner + demod driver");
+MODULE_AUTHOR("Sony Semiconductor Solutions Corporation");
+MODULE_LICENSE("GPL v2");
--
2.15.1
