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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.c | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.c')
-rw-r--r-- | drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.c b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.c new file mode 100644 index 000000000..3d8012c18 --- /dev/null +++ b/drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.c @@ -0,0 +1,150 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * cxd2880_tnrdmd_mon.c + * Sony CXD2880 DVB-T2/T tuner + demodulator driver + * common monitor functions + * + * Copyright (C) 2016, 2017, 2018 Sony Semiconductor Solutions Corporation + */ + +#include "cxd2880_common.h" +#include "cxd2880_tnrdmd_mon.h" + +static const u8 rf_lvl_seq[2] = { + 0x80, 0x00, +}; + +int cxd2880_tnrdmd_mon_rf_lvl(struct cxd2880_tnrdmd *tnr_dmd, + int *rf_lvl_db) +{ + u8 rdata[2]; + int ret; + + if (!tnr_dmd || !rf_lvl_db) + return -EINVAL; + + if (tnr_dmd->state != CXD2880_TNRDMD_STATE_ACTIVE) + return -EINVAL; + + ret = tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, + 0x00, 0x00); + if (ret) + return ret; + + ret = tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, + 0x10, 0x01); + if (ret) + return ret; + + ret = tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, + 0x00, 0x10); + if (ret) + return ret; + + ret = tnr_dmd->io->write_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, + 0x5b, rf_lvl_seq, 2); + if (ret) + return ret; + + usleep_range(2000, 3000); + + ret = tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, + 0x00, 0x1a); + if (ret) + return ret; + + ret = tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, + 0x15, rdata, 2); + if (ret) + return ret; + + if (rdata[0] || rdata[1]) + return -EINVAL; + + ret = tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, + 0x11, rdata, 2); + if (ret) + return ret; + + *rf_lvl_db = + cxd2880_convert2s_complement((rdata[0] << 3) | + ((rdata[1] & 0xe0) >> 5), 11); + + *rf_lvl_db *= 125; + + ret = tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, + 0x00, 0x00); + if (ret) + return ret; + + ret = tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_DMD, + 0x10, 0x00); + if (ret) + return ret; + + if (tnr_dmd->rf_lvl_cmpstn) + ret = tnr_dmd->rf_lvl_cmpstn(tnr_dmd, rf_lvl_db); + + return ret; +} + +int cxd2880_tnrdmd_mon_rf_lvl_sub(struct cxd2880_tnrdmd *tnr_dmd, + int *rf_lvl_db) +{ + if (!tnr_dmd || !rf_lvl_db) + return -EINVAL; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return -EINVAL; + + return cxd2880_tnrdmd_mon_rf_lvl(tnr_dmd->diver_sub, rf_lvl_db); +} + +int cxd2880_tnrdmd_mon_internal_cpu_status(struct cxd2880_tnrdmd + *tnr_dmd, u16 *status) +{ + u8 data[2] = { 0 }; + int ret; + + if (!tnr_dmd || !status) + return -EINVAL; + + ret = tnr_dmd->io->write_reg(tnr_dmd->io, + CXD2880_IO_TGT_SYS, + 0x00, 0x1a); + if (ret) + return ret; + ret = tnr_dmd->io->read_regs(tnr_dmd->io, + CXD2880_IO_TGT_SYS, + 0x15, data, 2); + if (ret) + return ret; + + *status = (data[0] << 8) | data[1]; + + return 0; +} + +int cxd2880_tnrdmd_mon_internal_cpu_status_sub(struct + cxd2880_tnrdmd + *tnr_dmd, + u16 *status) +{ + if (!tnr_dmd || !status) + return -EINVAL; + + if (tnr_dmd->diver_mode != CXD2880_TNRDMD_DIVERMODE_MAIN) + return -EINVAL; + + return cxd2880_tnrdmd_mon_internal_cpu_status(tnr_dmd->diver_sub, + status); +} |