Release 4.17 drivers/media/dvb-frontends/cxd2880/cxd2880_tnrdmd_mon.c
// 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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Yasunari Takiguchi | 365 | 100.00% | 1 | 100.00% |
| Total | 365 | 100.00% | 1 | 100.00% |
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Yasunari Takiguchi | 48 | 100.00% | 1 | 100.00% |
| Total | 48 | 100.00% | 1 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Yasunari Takiguchi | 113 | 100.00% | 1 | 100.00% |
| Total | 113 | 100.00% | 1 | 100.00% |
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Yasunari Takiguchi | 48 | 100.00% | 1 | 100.00% |
| Total | 48 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Yasunari Takiguchi | 596 | 100.00% | 1 | 100.00% |
| Total | 596 | 100.00% | 1 | 100.00% |
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