mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 12:15:08 +07:00
08e1097266
I am no longer available at the kernellabs.com or m1k.net email addresses. Update each instance of my email to my linuxtv.org account. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
526 lines
12 KiB
C
526 lines
12 KiB
C
/*
|
|
* mxl111sf-tuner.c - driver for the MaxLinear MXL111SF CMOS tuner
|
|
*
|
|
* Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#include "mxl111sf-tuner.h"
|
|
#include "mxl111sf-phy.h"
|
|
#include "mxl111sf-reg.h"
|
|
|
|
/* debug */
|
|
static int mxl111sf_tuner_debug;
|
|
module_param_named(debug, mxl111sf_tuner_debug, int, 0644);
|
|
MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able)).");
|
|
|
|
#define mxl_dbg(fmt, arg...) \
|
|
if (mxl111sf_tuner_debug) \
|
|
mxl_printk(KERN_DEBUG, fmt, ##arg)
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
struct mxl111sf_tuner_state {
|
|
struct mxl111sf_state *mxl_state;
|
|
|
|
struct mxl111sf_tuner_config *cfg;
|
|
|
|
enum mxl_if_freq if_freq;
|
|
|
|
u32 frequency;
|
|
u32 bandwidth;
|
|
};
|
|
|
|
static int mxl111sf_tuner_read_reg(struct mxl111sf_tuner_state *state,
|
|
u8 addr, u8 *data)
|
|
{
|
|
return (state->cfg->read_reg) ?
|
|
state->cfg->read_reg(state->mxl_state, addr, data) :
|
|
-EINVAL;
|
|
}
|
|
|
|
static int mxl111sf_tuner_write_reg(struct mxl111sf_tuner_state *state,
|
|
u8 addr, u8 data)
|
|
{
|
|
return (state->cfg->write_reg) ?
|
|
state->cfg->write_reg(state->mxl_state, addr, data) :
|
|
-EINVAL;
|
|
}
|
|
|
|
static int mxl111sf_tuner_program_regs(struct mxl111sf_tuner_state *state,
|
|
struct mxl111sf_reg_ctrl_info *ctrl_reg_info)
|
|
{
|
|
return (state->cfg->program_regs) ?
|
|
state->cfg->program_regs(state->mxl_state, ctrl_reg_info) :
|
|
-EINVAL;
|
|
}
|
|
|
|
static int mxl1x1sf_tuner_top_master_ctrl(struct mxl111sf_tuner_state *state,
|
|
int onoff)
|
|
{
|
|
return (state->cfg->top_master_ctrl) ?
|
|
state->cfg->top_master_ctrl(state->mxl_state, onoff) :
|
|
-EINVAL;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
static struct mxl111sf_reg_ctrl_info mxl_phy_tune_rf[] = {
|
|
{0x1d, 0x7f, 0x00}, /* channel bandwidth section 1/2/3,
|
|
DIG_MODEINDEX, _A, _CSF, */
|
|
{0x1e, 0xff, 0x00}, /* channel frequency (lo and fractional) */
|
|
{0x1f, 0xff, 0x00}, /* channel frequency (hi for integer portion) */
|
|
{0, 0, 0}
|
|
};
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
static struct mxl111sf_reg_ctrl_info *mxl111sf_calc_phy_tune_regs(u32 freq,
|
|
u8 bw)
|
|
{
|
|
u8 filt_bw;
|
|
|
|
/* set channel bandwidth */
|
|
switch (bw) {
|
|
case 0: /* ATSC */
|
|
filt_bw = 25;
|
|
break;
|
|
case 1: /* QAM */
|
|
filt_bw = 69;
|
|
break;
|
|
case 6:
|
|
filt_bw = 21;
|
|
break;
|
|
case 7:
|
|
filt_bw = 42;
|
|
break;
|
|
case 8:
|
|
filt_bw = 63;
|
|
break;
|
|
default:
|
|
pr_err("%s: invalid bandwidth setting!", __func__);
|
|
return NULL;
|
|
}
|
|
|
|
/* calculate RF channel */
|
|
freq /= 1000000;
|
|
|
|
freq *= 64;
|
|
#if 0
|
|
/* do round */
|
|
freq += 0.5;
|
|
#endif
|
|
/* set bandwidth */
|
|
mxl_phy_tune_rf[0].data = filt_bw;
|
|
|
|
/* set RF */
|
|
mxl_phy_tune_rf[1].data = (freq & 0xff);
|
|
mxl_phy_tune_rf[2].data = (freq >> 8) & 0xff;
|
|
|
|
/* start tune */
|
|
return mxl_phy_tune_rf;
|
|
}
|
|
|
|
static int mxl1x1sf_tuner_set_if_output_freq(struct mxl111sf_tuner_state *state)
|
|
{
|
|
int ret;
|
|
u8 ctrl;
|
|
#if 0
|
|
u16 iffcw;
|
|
u32 if_freq;
|
|
#endif
|
|
mxl_dbg("(IF polarity = %d, IF freq = 0x%02x)",
|
|
state->cfg->invert_spectrum, state->cfg->if_freq);
|
|
|
|
/* set IF polarity */
|
|
ctrl = state->cfg->invert_spectrum;
|
|
|
|
ctrl |= state->cfg->if_freq;
|
|
|
|
ret = mxl111sf_tuner_write_reg(state, V6_TUNER_IF_SEL_REG, ctrl);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
|
|
#if 0
|
|
if_freq /= 1000000;
|
|
|
|
/* do round */
|
|
if_freq += 0.5;
|
|
|
|
if (MXL_IF_LO == state->cfg->if_freq) {
|
|
ctrl = 0x08;
|
|
iffcw = (u16)(if_freq / (108 * 4096));
|
|
} else if (MXL_IF_HI == state->cfg->if_freq) {
|
|
ctrl = 0x08;
|
|
iffcw = (u16)(if_freq / (216 * 4096));
|
|
} else {
|
|
ctrl = 0;
|
|
iffcw = 0;
|
|
}
|
|
|
|
ctrl |= (iffcw >> 8);
|
|
#endif
|
|
ret = mxl111sf_tuner_read_reg(state, V6_TUNER_IF_FCW_BYP_REG, &ctrl);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
|
|
ctrl &= 0xf0;
|
|
ctrl |= 0x90;
|
|
|
|
ret = mxl111sf_tuner_write_reg(state, V6_TUNER_IF_FCW_BYP_REG, ctrl);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
|
|
#if 0
|
|
ctrl = iffcw & 0x00ff;
|
|
#endif
|
|
ret = mxl111sf_tuner_write_reg(state, V6_TUNER_IF_FCW_REG, ctrl);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
|
|
state->if_freq = state->cfg->if_freq;
|
|
fail:
|
|
return ret;
|
|
}
|
|
|
|
static int mxl1x1sf_tune_rf(struct dvb_frontend *fe, u32 freq, u8 bw)
|
|
{
|
|
struct mxl111sf_tuner_state *state = fe->tuner_priv;
|
|
static struct mxl111sf_reg_ctrl_info *reg_ctrl_array;
|
|
int ret;
|
|
u8 mxl_mode;
|
|
|
|
mxl_dbg("(freq = %d, bw = 0x%x)", freq, bw);
|
|
|
|
/* stop tune */
|
|
ret = mxl111sf_tuner_write_reg(state, START_TUNE_REG, 0);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
|
|
/* check device mode */
|
|
ret = mxl111sf_tuner_read_reg(state, MXL_MODE_REG, &mxl_mode);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
|
|
/* Fill out registers for channel tune */
|
|
reg_ctrl_array = mxl111sf_calc_phy_tune_regs(freq, bw);
|
|
if (!reg_ctrl_array)
|
|
return -EINVAL;
|
|
|
|
ret = mxl111sf_tuner_program_regs(state, reg_ctrl_array);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
|
|
if ((mxl_mode & MXL_DEV_MODE_MASK) == MXL_TUNER_MODE) {
|
|
/* IF tuner mode only */
|
|
mxl1x1sf_tuner_top_master_ctrl(state, 0);
|
|
mxl1x1sf_tuner_top_master_ctrl(state, 1);
|
|
mxl1x1sf_tuner_set_if_output_freq(state);
|
|
}
|
|
|
|
ret = mxl111sf_tuner_write_reg(state, START_TUNE_REG, 1);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
|
|
if (state->cfg->ant_hunt)
|
|
state->cfg->ant_hunt(fe);
|
|
fail:
|
|
return ret;
|
|
}
|
|
|
|
static int mxl1x1sf_tuner_get_lock_status(struct mxl111sf_tuner_state *state,
|
|
int *rf_synth_lock,
|
|
int *ref_synth_lock)
|
|
{
|
|
int ret;
|
|
u8 data;
|
|
|
|
*rf_synth_lock = 0;
|
|
*ref_synth_lock = 0;
|
|
|
|
ret = mxl111sf_tuner_read_reg(state, V6_RF_LOCK_STATUS_REG, &data);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
|
|
*ref_synth_lock = ((data & 0x03) == 0x03) ? 1 : 0;
|
|
*rf_synth_lock = ((data & 0x0c) == 0x0c) ? 1 : 0;
|
|
fail:
|
|
return ret;
|
|
}
|
|
|
|
#if 0
|
|
static int mxl1x1sf_tuner_loop_thru_ctrl(struct mxl111sf_tuner_state *state,
|
|
int onoff)
|
|
{
|
|
return mxl111sf_tuner_write_reg(state, V6_TUNER_LOOP_THRU_CTRL_REG,
|
|
onoff ? 1 : 0);
|
|
}
|
|
#endif
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
static int mxl111sf_tuner_set_params(struct dvb_frontend *fe)
|
|
{
|
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
|
u32 delsys = c->delivery_system;
|
|
struct mxl111sf_tuner_state *state = fe->tuner_priv;
|
|
int ret;
|
|
u8 bw;
|
|
|
|
mxl_dbg("()");
|
|
|
|
switch (delsys) {
|
|
case SYS_ATSC:
|
|
case SYS_ATSCMH:
|
|
bw = 0; /* ATSC */
|
|
break;
|
|
case SYS_DVBC_ANNEX_B:
|
|
bw = 1; /* US CABLE */
|
|
break;
|
|
case SYS_DVBT:
|
|
switch (c->bandwidth_hz) {
|
|
case 6000000:
|
|
bw = 6;
|
|
break;
|
|
case 7000000:
|
|
bw = 7;
|
|
break;
|
|
case 8000000:
|
|
bw = 8;
|
|
break;
|
|
default:
|
|
pr_err("%s: bandwidth not set!", __func__);
|
|
return -EINVAL;
|
|
}
|
|
break;
|
|
default:
|
|
pr_err("%s: modulation type not supported!", __func__);
|
|
return -EINVAL;
|
|
}
|
|
ret = mxl1x1sf_tune_rf(fe, c->frequency, bw);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
|
|
state->frequency = c->frequency;
|
|
state->bandwidth = c->bandwidth_hz;
|
|
fail:
|
|
return ret;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
#if 0
|
|
static int mxl111sf_tuner_init(struct dvb_frontend *fe)
|
|
{
|
|
struct mxl111sf_tuner_state *state = fe->tuner_priv;
|
|
int ret;
|
|
|
|
/* wake from standby handled by usb driver */
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mxl111sf_tuner_sleep(struct dvb_frontend *fe)
|
|
{
|
|
struct mxl111sf_tuner_state *state = fe->tuner_priv;
|
|
int ret;
|
|
|
|
/* enter standby mode handled by usb driver */
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
static int mxl111sf_tuner_get_status(struct dvb_frontend *fe, u32 *status)
|
|
{
|
|
struct mxl111sf_tuner_state *state = fe->tuner_priv;
|
|
int rf_locked, ref_locked, ret;
|
|
|
|
*status = 0;
|
|
|
|
ret = mxl1x1sf_tuner_get_lock_status(state, &rf_locked, &ref_locked);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
mxl_info("%s%s", rf_locked ? "rf locked " : "",
|
|
ref_locked ? "ref locked" : "");
|
|
|
|
if ((rf_locked) || (ref_locked))
|
|
*status |= TUNER_STATUS_LOCKED;
|
|
fail:
|
|
return ret;
|
|
}
|
|
|
|
static int mxl111sf_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
|
|
{
|
|
struct mxl111sf_tuner_state *state = fe->tuner_priv;
|
|
u8 val1, val2;
|
|
int ret;
|
|
|
|
*strength = 0;
|
|
|
|
ret = mxl111sf_tuner_write_reg(state, 0x00, 0x02);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
ret = mxl111sf_tuner_read_reg(state, V6_DIG_RF_PWR_LSB_REG, &val1);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
ret = mxl111sf_tuner_read_reg(state, V6_DIG_RF_PWR_MSB_REG, &val2);
|
|
if (mxl_fail(ret))
|
|
goto fail;
|
|
|
|
*strength = val1 | ((val2 & 0x07) << 8);
|
|
fail:
|
|
ret = mxl111sf_tuner_write_reg(state, 0x00, 0x00);
|
|
mxl_fail(ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
static int mxl111sf_tuner_get_frequency(struct dvb_frontend *fe, u32 *frequency)
|
|
{
|
|
struct mxl111sf_tuner_state *state = fe->tuner_priv;
|
|
*frequency = state->frequency;
|
|
return 0;
|
|
}
|
|
|
|
static int mxl111sf_tuner_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
|
|
{
|
|
struct mxl111sf_tuner_state *state = fe->tuner_priv;
|
|
*bandwidth = state->bandwidth;
|
|
return 0;
|
|
}
|
|
|
|
static int mxl111sf_tuner_get_if_frequency(struct dvb_frontend *fe,
|
|
u32 *frequency)
|
|
{
|
|
struct mxl111sf_tuner_state *state = fe->tuner_priv;
|
|
|
|
*frequency = 0;
|
|
|
|
switch (state->if_freq) {
|
|
case MXL_IF_4_0: /* 4.0 MHz */
|
|
*frequency = 4000000;
|
|
break;
|
|
case MXL_IF_4_5: /* 4.5 MHz */
|
|
*frequency = 4500000;
|
|
break;
|
|
case MXL_IF_4_57: /* 4.57 MHz */
|
|
*frequency = 4570000;
|
|
break;
|
|
case MXL_IF_5_0: /* 5.0 MHz */
|
|
*frequency = 5000000;
|
|
break;
|
|
case MXL_IF_5_38: /* 5.38 MHz */
|
|
*frequency = 5380000;
|
|
break;
|
|
case MXL_IF_6_0: /* 6.0 MHz */
|
|
*frequency = 6000000;
|
|
break;
|
|
case MXL_IF_6_28: /* 6.28 MHz */
|
|
*frequency = 6280000;
|
|
break;
|
|
case MXL_IF_7_2: /* 7.2 MHz */
|
|
*frequency = 7200000;
|
|
break;
|
|
case MXL_IF_35_25: /* 35.25 MHz */
|
|
*frequency = 35250000;
|
|
break;
|
|
case MXL_IF_36: /* 36 MHz */
|
|
*frequency = 36000000;
|
|
break;
|
|
case MXL_IF_36_15: /* 36.15 MHz */
|
|
*frequency = 36150000;
|
|
break;
|
|
case MXL_IF_44: /* 44 MHz */
|
|
*frequency = 44000000;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mxl111sf_tuner_release(struct dvb_frontend *fe)
|
|
{
|
|
struct mxl111sf_tuner_state *state = fe->tuner_priv;
|
|
mxl_dbg("()");
|
|
kfree(state);
|
|
fe->tuner_priv = NULL;
|
|
return 0;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
static struct dvb_tuner_ops mxl111sf_tuner_tuner_ops = {
|
|
.info = {
|
|
.name = "MaxLinear MxL111SF",
|
|
#if 0
|
|
.frequency_min = ,
|
|
.frequency_max = ,
|
|
.frequency_step = ,
|
|
#endif
|
|
},
|
|
#if 0
|
|
.init = mxl111sf_tuner_init,
|
|
.sleep = mxl111sf_tuner_sleep,
|
|
#endif
|
|
.set_params = mxl111sf_tuner_set_params,
|
|
.get_status = mxl111sf_tuner_get_status,
|
|
.get_rf_strength = mxl111sf_get_rf_strength,
|
|
.get_frequency = mxl111sf_tuner_get_frequency,
|
|
.get_bandwidth = mxl111sf_tuner_get_bandwidth,
|
|
.get_if_frequency = mxl111sf_tuner_get_if_frequency,
|
|
.release = mxl111sf_tuner_release,
|
|
};
|
|
|
|
struct dvb_frontend *mxl111sf_tuner_attach(struct dvb_frontend *fe,
|
|
struct mxl111sf_state *mxl_state,
|
|
struct mxl111sf_tuner_config *cfg)
|
|
{
|
|
struct mxl111sf_tuner_state *state = NULL;
|
|
|
|
mxl_dbg("()");
|
|
|
|
state = kzalloc(sizeof(struct mxl111sf_tuner_state), GFP_KERNEL);
|
|
if (state == NULL)
|
|
return NULL;
|
|
|
|
state->mxl_state = mxl_state;
|
|
state->cfg = cfg;
|
|
|
|
memcpy(&fe->ops.tuner_ops, &mxl111sf_tuner_tuner_ops,
|
|
sizeof(struct dvb_tuner_ops));
|
|
|
|
fe->tuner_priv = state;
|
|
return fe;
|
|
}
|
|
EXPORT_SYMBOL_GPL(mxl111sf_tuner_attach);
|
|
|
|
MODULE_DESCRIPTION("MaxLinear MxL111SF CMOS tuner driver");
|
|
MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_VERSION("0.1");
|
|
|
|
/*
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
|
* ---------------------------------------------------------------------------
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|