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lineage_kernel_xcoverpro/drivers/media/radio/s610/radio-s610.c

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initial commit
2023-06-18 22:53:49 +00:00
/*
* drivers/media/radio/s610/radio-s610.c -- V4L2 driver for S610 chips
*
* 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 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.
*
*/
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/atomic.h>
#include <linux/videodev2.h>
#include <linux/io.h>
#include <linux/mutex.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/vmalloc.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-event.h>
#include <media/v4l2-device.h>
#include <linux/wakelock.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/of_device.h>
#include <soc/samsung/exynos-pmu.h>
#include <linux/mcu_ipc.h>
#ifdef CONFIG_SCSC_FM
#include <scsc/scsc_mx.h>
#endif
#include "fm_low_struc.h"
#include "radio-s610.h"
#include "../../../../sound/soc/samsung/abox/abox.h"
static int radio_region;
module_param(radio_region, int, 0);
MODULE_PARM_DESC(radio_region, "Region: 0=Europe/US, 1=Japan");
struct s610_radio;
/* global variable for radio structure */
struct s610_radio *gradio;
#define FAC_VALUE 16000
static int s610_radio_g_volatile_ctrl(struct v4l2_ctrl *ctrl);
static int s610_radio_s_ctrl(struct v4l2_ctrl *ctrl);
static int s610_core_set_power_state(struct s610_radio *radio,
u8 next_state);
int fm_set_mute_mode(struct s610_radio *radio, u8 mute_mode_toset);
static int fm_radio_runtime_resume(struct device *dev);
void enable_FM_mux_clk_aud(struct s610_radio *radio);
void disable_clk_gating(struct s610_radio *radio);
static int fm_clk_get(struct s610_radio *radio);
static int fm_clk_prepare(struct s610_radio *radio);
static int fm_clk_enable(struct s610_radio *radio);
static void fm_clk_unprepare(struct s610_radio *radio);
static void fm_clk_disable(struct s610_radio *radio);
static void fm_clk_put(struct s610_radio *radio);
signed int exynos_get_fm_open_status(void);
signed int shared_fm_open_cnt;
extern fm_conf_ini_values low_fm_conf_init;
u32 *fm_spur_init;
u32 *fm_spur_trf_init;
u32 *fm_dual_clk_init;
u32 vol_level_init[FM_RX_VOLUME_GAIN_STEP] = {
0, 16, 23, 32, 45, 64, 90, 128, 181, 256, 362, 512, 724, 1024, 1447, 2047 };
static const struct v4l2_ctrl_ops s610_ctrl_ops = {
.s_ctrl = s610_radio_s_ctrl,
.g_volatile_ctrl = s610_radio_g_volatile_ctrl,
};
enum s610_ctrl_idx {
S610_IDX_CH_SPACING = 0x01,
S610_IDX_CH_BAND = 0x02,
S610_IDX_SOFT_STEREO_BLEND = 0x03,
S610_IDX_SOFT_STEREO_BLEND_COEFF = 0x04,
S610_IDX_SOFT_MUTE_COEFF = 0x05,
S610_IDX_RSSI_CURR = 0x06,
S610_IDX_SNR_CURR = 0x07,
S610_IDX_SEEK_CANCEL = 0x08,
S610_IDX_SEEK_MODE = 0x09,
S610_IDX_RDS_ON = 0x0A,
S610_IDX_IF_COUNT1 = 0x0B,
S610_IDX_IF_COUNT2 = 0x0C,
S610_IDX_RSSI_TH = 0x0D,
S610_IDX_KERNEL_VER = 0x0E,
S610_IDX_SOFT_STEREO_BLEND_REF = 0x0F
};
static struct v4l2_ctrl_config s610_ctrls[] = {
/**
* S610 during its station seeking(or tuning) process uses several
* parameters to detrmine if "the station" is valid:
*
* - Signal's RSSI(in dBuV) must be greater than
* #V4L2_CID_S610_RSSI_THRESHOLD
*/
[S610_IDX_CH_SPACING] = {/*0x01*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_CH_SPACING,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Channel Spacing",
.min = 0,
.max = 2,
.step = 1,
},
[S610_IDX_CH_BAND] = { /*0x02*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_CH_BAND,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Channel Band",
.min = 0,
.max = 1,
.step = 1,
},
[S610_IDX_SOFT_STEREO_BLEND] = { /*0x03*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_SOFT_STEREO_BLEND,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Soft Stereo Blend",
.min = 0,
.max = 1,
.step = 1,
},
[S610_IDX_SOFT_STEREO_BLEND_COEFF] = { /*0x04*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_SOFT_STEREO_BLEND_COEFF,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Soft Stereo Blend COEFF",
.min = 0,
.max = 0xffff,
.step = 1,
},
[S610_IDX_SOFT_MUTE_COEFF] = { /*0x05*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_SOFT_MUTE_COEFF,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Soft Mute COEFF Set",
.min = 0,
.max = 0xffff,
.step = 1,
},
[S610_IDX_RSSI_CURR] = { /*0x06*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_RSSI_CURR,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "RSSI Current",
.min = 0,
.max = 0xffff,
.step = 1,
},
[S610_IDX_SNR_CURR] = { /*0x07*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_SNR_CURR,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "SNR Current",
.min = 0,
.max = 0xffff,
.step = 1,
},
[S610_IDX_SEEK_CANCEL] = { /*0x08*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_SEEK_CANCEL,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Seek Cancel",
.min = 0,
.max = 1,
.step = 1,
},
[S610_IDX_SEEK_MODE] = { /*0x09*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_SEEK_MODE,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Seek Mode",
.min = 0,
.max = 4,
.step = 1,
},
[S610_IDX_RDS_ON] = { /*0x0A*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_RDS_ON,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "RDS ON",
.min = 0,
.max = 0x0F,
.step = 1,
},
[S610_IDX_IF_COUNT1] = { /*0x0B*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_IF_COUNT1,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "IF_COUNT1",
.min = 0,
.max = 0xffff,
.step = 1,
},
[S610_IDX_IF_COUNT2] = { /*0x0C*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_IF_COUNT2,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "IF_COUNT2",
.min = 0,
.max = 0xffff,
.step = 1,
},
[S610_IDX_RSSI_TH] = { /*0x0D*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_RSSI_TH,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "RSSI Th",
.min = 0,
.max = 0xffff,
.step = 1,
},
[S610_IDX_KERNEL_VER] = { /*0x0E*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_KERNEL_VER,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "KERNEL_VER",
.min = 0,
.max = 0xffff,
.step = 1,
},
[S610_IDX_SOFT_STEREO_BLEND_REF] = { /*0x0F*/
.ops = &s610_ctrl_ops,
.id = V4L2_CID_S610_SOFT_STEREO_BLEND_REF,
.type = V4L2_CTRL_TYPE_INTEGER,
.name = "Soft Stereo Blend Ref",
.min = 0,
.max = 0xffff,
.step = 1,
},
};
static const struct v4l2_frequency_band s610_bands[] = {
[0] = {
.type = V4L2_TUNER_RADIO,
.index = S610_BAND_FM,
.capability = V4L2_TUNER_CAP_LOW
| V4L2_TUNER_CAP_STEREO
| V4L2_TUNER_CAP_RDS
| V4L2_TUNER_CAP_RDS_BLOCK_IO
| V4L2_TUNER_CAP_FREQ_BANDS,
/* default region Eu/US */
.rangelow = 87500*FAC_VALUE,
.rangehigh = 108000*FAC_VALUE,
.modulation = V4L2_BAND_MODULATION_FM,
},
[1] = {
.type = V4L2_TUNER_RADIO,
.index = S610_BAND_FM,
.capability = V4L2_TUNER_CAP_LOW
| V4L2_TUNER_CAP_STEREO
| V4L2_TUNER_CAP_RDS
| V4L2_TUNER_CAP_RDS_BLOCK_IO
| V4L2_TUNER_CAP_FREQ_BANDS,
/* default region Eu/US */
.rangelow = 76000*FAC_VALUE,
.rangehigh = 90000*FAC_VALUE,
.modulation = V4L2_BAND_MODULATION_FM,
},
};
/* Region info */
static struct region_info region_configs[] = {
/* Europe/US */
{
.chanl_space = FM_CHANNEL_SPACING_200KHZ * FM_FREQ_MUL,
.bot_freq = 87500, /* 87.5 MHz */
.top_freq = 108000, /* 108 MHz */
.fm_band = 0,
},
/* Japan */
{
.chanl_space = FM_CHANNEL_SPACING_200KHZ * FM_FREQ_MUL,
.bot_freq = 76000, /* 76 MHz */
.top_freq = 90000, /* 90 MHz */
.fm_band = 1,
},
};
static inline bool s610_radio_freq_is_inside_of_the_band(u32 freq, int band)
{
return freq >= region_configs[radio_region].bot_freq &&
freq <= region_configs[radio_region].top_freq;
}
static inline struct s610_radio *
v4l2_dev_to_radio(struct v4l2_device *d)
{
return container_of(d, struct s610_radio, v4l2dev);
}
static inline struct s610_radio *
v4l2_ctrl_handler_to_radio(struct v4l2_ctrl_handler *d)
{
return container_of(d, struct s610_radio, ctrl_handler);
}
/*
* s610_vidioc_querycap - query device capabilities
*/
static int s610_radio_querycap(struct file *file, void *priv,
struct v4l2_capability *capability)
{
struct s610_radio *radio = video_drvdata(file);
FUNC_ENTRY(radio);
s610_core_lock(radio->core);
strlcpy(capability->driver, radio->v4l2dev.name,
sizeof(capability->driver));
strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card));
snprintf(capability->bus_info, sizeof(capability->bus_info),
"platform:%s", radio->v4l2dev.name);
capability->device_caps = V4L2_CAP_TUNER
| V4L2_CAP_RADIO | V4L2_CAP_RDS_CAPTURE
| V4L2_CAP_READWRITE | V4L2_CAP_HW_FREQ_SEEK;
capability->capabilities = capability->device_caps
| V4L2_CAP_DEVICE_CAPS;
s610_core_unlock(radio->core);
FUNC_EXIT(radio);
return 0;
}
static int s610_radio_enum_freq_bands(struct file *file, void *priv,
struct v4l2_frequency_band *band)
{
int ret;
struct s610_radio *radio = video_drvdata(file);
FUNC_ENTRY(radio);
if (band->tuner != 0)
return -EINVAL;
s610_core_lock(radio->core);
if (band->index == S610_BAND_FM) {
*band = s610_bands[radio_region];
ret = 0;
} else {
ret = -EINVAL;
}
s610_core_unlock(radio->core);
FUNC_EXIT(radio);
return ret;
}
static int s610_radio_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *tuner)
{
int ret;
struct s610_radio *radio = video_drvdata(file);
u16 payload;
FUNC_ENTRY(radio);
if (tuner->index != 0)
return -EINVAL;
s610_core_lock(radio->core);
tuner->type = V4L2_TUNER_RADIO;
tuner->capability = V4L2_TUNER_CAP_LOW
| V4L2_TUNER_CAP_STEREO
| V4L2_TUNER_CAP_HWSEEK_BOUNDED
| V4L2_TUNER_CAP_HWSEEK_WRAP
| V4L2_TUNER_CAP_HWSEEK_PROG_LIM;
strlcpy(tuner->name, "FM", sizeof(tuner->name));
tuner->rxsubchans = V4L2_TUNER_SUB_RDS;
tuner->capability |= V4L2_TUNER_CAP_RDS
| V4L2_TUNER_CAP_RDS_BLOCK_IO
| V4L2_TUNER_CAP_FREQ_BANDS;
/* Read register : MONO, Stereo mode */
/*ret = low_get_most_mode(radio, &payload);*/
payload = radio->low->fm_state.force_mono ?
0 : MODE_MASK_MONO_STEREO;
radio->audmode = payload;
tuner->audmode = radio->audmode;
tuner->afc = 1;
tuner->rangelow = s610_bands[radio_region].rangelow;
tuner->rangehigh = s610_bands[radio_region].rangehigh;
ret = low_get_search_lvl(radio, &payload);
if (ret != 0) {
dev_err(radio->v4l2dev.dev,
"Failed to read reg for SEARCH_LVL\n");
ret = -EIO;
tuner->signal = 0;
} else {
tuner->signal = 0;
if (payload & 0x80)
tuner->signal = 0xFF00;
else
tuner->signal = 0;
tuner->signal |= (payload & 0xFF);
}
s610_core_unlock(radio->core);
FUNC_EXIT(radio);
return ret;
}
static int s610_radio_s_tuner(struct file *file, void *priv,
const struct v4l2_tuner *tuner)
{
int ret;
struct s610_radio *radio = video_drvdata(file);
u16 payload;
FUNC_ENTRY(radio);
if (tuner->index != 0)
return -EINVAL;
s610_core_lock(radio->core);
if (tuner->audmode == V4L2_TUNER_MODE_MONO ||
tuner->audmode == V4L2_TUNER_MODE_STEREO)
radio->audmode = tuner->audmode;
else
radio->audmode = V4L2_TUNER_MODE_STEREO;
payload = radio->audmode;
ret = low_set_most_mode(radio, payload);
if (ret != 0) {
dev_err(radio->v4l2dev.dev,
"Failed to write reg for MOST MODE clear\n");
ret = -EIO;
}
s610_core_unlock(radio->core);
FUNC_EXIT(radio);
return ret;
}
static int s610_radio_pretune(struct s610_radio *radio)
{
int ret = 0;
u16 payload;
FUNC_ENTRY(radio);
/*ret = low_get_flag(radio, &payload);*/
payload = fm_get_flags(radio);
payload = 0;
ret = low_set_mute_state(radio, payload);
if (ret != 0) {
dev_err(radio->v4l2dev.dev,
"Failed to write reg for MUTE state clean\n");
return -EIO;
}
payload = radio->low->fm_state.force_mono ?
0 : MODE_MASK_MONO_STEREO;
payload = 0;
ret = low_set_most_blend(radio, payload);
if (ret != 0) {
dev_err(radio->v4l2dev.dev,
"Failed to write reg for MOST blend clean\n");
return -EIO;
}
payload = 0;
fm_set_band(radio, payload);
payload = 0;
ret = low_set_demph_mode(radio, payload);
if (ret != 0) {
dev_err(radio->v4l2dev.dev,
"Failed to write reg for FM_SUBADDR_DEMPH_MODE clean\n");
return -EIO;
}
payload = 0;
radio->low->fm_state.use_rbds =
((payload & RDS_SYSTEM_MASK_RDS) != 0);
radio->low->fm_state.save_eblks =
((payload & RDS_SYSTEM_MASK_EBLK) == 0);
radio->low->fm_state.rds_mem_thresh = RDS_MEM_MAX_THRESH;
FUNC_EXIT(radio);
return ret;
}
static int s610_radio_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct s610_radio *radio = video_drvdata(file);
u32 payload;
FUNC_ENTRY(radio);
if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
return -EINVAL;
s610_core_lock(radio->core);
payload = radio->low->fm_state.freq;
f->frequency = payload;
f->frequency *= FAC_VALUE;
s610_core_unlock(radio->core);
FUNC_EXIT(radio);
FDEBUG(radio,
"%s():freq.tuner:%d, type:%d, freq:%d, real-freq:%d\n",
__func__, f->tuner, f->type, f->frequency,
f->frequency/FAC_VALUE);
return 0;
}
int fm_set_frequency(struct s610_radio *radio, u32 freq)
{
unsigned long timeleft;
u32 curr_frq, intr_flag;
u32 curr_frq_in_khz;
int ret;
u32 payload;
u16 payload16;
FUNC_ENTRY(radio);
/* Calculate frequency with offset and set*/
payload = real_to_api(freq);
low_set_freq(radio, payload);
/* Read flags - just to clear any pending interrupts if we had */
payload = fm_get_flags(radio);
/* Enable FR, BL interrupts */
intr_flag = radio->irq_mask;
radio->irq_mask = (FM_EVENT_TUNED | FM_EVENT_BD_LMT);
low_get_search_lvl(radio, (u16 *) &payload16);
if (!payload16) {
payload16 = FM_DEFAULT_RSSI_THRESHOLD;
low_set_search_lvl(radio, (u16) payload16);
}
if (radio->low->fm_config.search_conf.normal_ifca_m == 0)
radio->low->fm_config.search_conf.normal_ifca_m =
low_fm_conf_init.search_conf.normal_ifca_m;
if (radio->low->fm_config.search_conf.weak_ifca_m == 0)
radio->low->fm_config.search_conf.weak_ifca_m =
low_fm_conf_init.search_conf.weak_ifca_m;
FDEBUG(radio, "%s(): ifcount:W-%d N-%d\n", __func__,
radio->low->fm_config.search_conf.weak_ifca_m,
radio->low->fm_config.search_conf.normal_ifca_m);
if (!radio->low->fm_config.mute_coeffs_soft) {
radio->low->fm_config.mute_coeffs_soft =
low_fm_conf_init.mute_coeffs_soft;
}
if (!radio->low->fm_config.blend_coeffs_soft) {
radio->low->fm_config.blend_coeffs_soft =
low_fm_conf_init.blend_coeffs_soft;
}
if (!radio->low->fm_config.blend_coeffs_switch) {
radio->low->fm_config.blend_coeffs_switch =
low_fm_conf_init.blend_coeffs_switch;
}
if (!radio->low->fm_config.blend_coeffs_dis)
radio->low->fm_config.blend_coeffs_dis =
low_fm_conf_init.blend_coeffs_dis;
fm_set_blend_mute(radio);
init_completion(&radio->flags_set_fr_comp);
/* Start tune */
payload = FM_TUNER_PRESET_MODE;
ret = low_set_tuner_mode(radio, payload);
if (ret != 0) {
ret = -EIO;
goto exit;
}
timeleft = jiffies_to_msecs(FM_DRV_TURN_TIMEOUT);
/* Wait for tune ended interrupt */
timeleft = wait_for_completion_timeout(&radio->flags_set_fr_comp,
FM_DRV_TURN_TIMEOUT);
if (!timeleft) {
dev_err(radio->v4l2dev.dev,
"Timeout(%d sec),didn't get tune ended int\n",
jiffies_to_msecs(FM_DRV_TURN_TIMEOUT) / 1000);
ret = -ETIMEDOUT;
goto exit;
}
/* Read freq back to confirm */
curr_frq = radio->low->fm_state.freq;
curr_frq_in_khz = curr_frq;
if (curr_frq_in_khz != freq) {
dev_err(radio->v4l2dev.dev,
"Set Freq (%d) but requested freq (%d)\n",
curr_frq_in_khz, freq);
ret = -ENODATA;
goto exit;
}
FDEBUG(radio,
"%s():--> Set frequency: %d Read frequency:%d\n",
__func__, freq, curr_frq_in_khz);
/* Update local cache */
radio->freq = curr_frq_in_khz;
exit:
/* Re-enable default FM interrupts */
radio->irq_mask = intr_flag;
FDEBUG(radio, "wait_atomic: %d\n", radio->wait_atomic);
FUNC_EXIT(radio);
return ret;
}
static int s610_radio_s_frequency(struct file *file, void *priv,
const struct v4l2_frequency *f)
{
int ret;
u32 freq = f->frequency;
struct s610_radio *radio = video_drvdata(file);
FUNC_ENTRY(radio);
if (f->tuner != 0 ||
f->type != V4L2_TUNER_RADIO)
return -EINVAL;
if (!wake_lock_active(&radio->wakelock))
wake_lock(&radio->wakelock);
s610_core_lock(radio->core);
FDEBUG(radio, "%s():freq:%d, real-freq:%d\n",
__func__, f->frequency, f->frequency/FAC_VALUE);
freq /= FAC_VALUE;
freq = clamp(freq,
region_configs[radio_region].bot_freq,
region_configs[radio_region].top_freq);
if (!s610_radio_freq_is_inside_of_the_band(freq,
radio_region)) {
ret = -EINVAL;
goto unlock;
}
ret = fm_set_frequency(radio, freq);
unlock:
s610_core_unlock(radio->core);
if (wake_lock_active(&radio->wakelock))
wake_unlock(&radio->wakelock);
FUNC_EXIT(radio);
FDEBUG(radio,
"%s():v4l2_frequency.tuner:%d,type:%d,frequency:%d\n",
__func__, f->tuner, f->type, freq);
return ret;
}
int fm_rx_seek(struct s610_radio *radio, u32 seek_upward,
u32 wrap_around, u32 spacing, u32 freq_low, u32 freq_hi)
{
u32 curr_frq, save_freq;
u32 payload, int_reason, intr_flag, tune_mode;
u32 space, upward;
u16 payload16;
unsigned long timeleft;
int ret;
int bl_1st, bl_2nd, bl_3nd;
FUNC_ENTRY(radio);
radio->seek_freq = 0;
radio->wrap_around = 0;
bl_1st = 0;
bl_2nd = 0;
bl_3nd = 0;
payload = fm_get_flags(radio);
/* Set channel spacing */
if (spacing > 0 && spacing <= 50)
payload = 0; /*CHANNEL_SPACING_50KHZ*/
else if (spacing > 50 && spacing <= 100)
payload = 1; /*CHANNEL_SPACING_100KHZ*/
else
payload = 2; /*CHANNEL_SPACING_200KHZ;*/
FDEBUG(radio, "%s(): init: spacing: %d\n", __func__, payload);
radio->low->fm_tuner_state.freq_step =
radio->low->fm_freq_steps[payload];
radio->region.chanl_space = 50 * (1 << payload);
/* Check the offset in order to be aligned to the channel spacing*/
space = radio->region.chanl_space;
/* Set search direction (0:Seek Up, 1:Seek Down) */
payload = (seek_upward ? FM_SEARCH_DIRECTION_UP :
FM_SEARCH_DIRECTION_DOWN);
upward = payload;
radio->low->fm_state.search_down =
!!(payload & SEARCH_DIR_MASK);
FDEBUG(radio, "%s(): direction: %d\n", __func__, payload);
save_freq = freq_low;
radio->seek_freq = save_freq;
tune_mode = FM_TUNER_AUTONOMOUS_SEARCH_MODE_NEXT;
if (radio->low->fm_state.rssi_limit_search == 0)
low_set_search_lvl(radio, (u16)FM_DEFAULT_RSSI_THRESHOLD);
if (radio->low->fm_config.search_conf.normal_ifca_m == 0)
radio->low->fm_config.search_conf.normal_ifca_m =
low_fm_conf_init.search_conf.normal_ifca_m;
if (radio->low->fm_config.search_conf.weak_ifca_m == 0)
radio->low->fm_config.search_conf.weak_ifca_m =
low_fm_conf_init.search_conf.weak_ifca_m;
FDEBUG(radio, "%s(): ifcount:W-%d N-%d\n", __func__,
radio->low->fm_config.search_conf.weak_ifca_m,
radio->low->fm_config.search_conf.normal_ifca_m);
again:
curr_frq = freq_low;
if ((freq_low == region_configs[radio_region].bot_freq)
&& (upward == FM_SEARCH_DIRECTION_DOWN))
curr_frq = region_configs[radio_region].top_freq;
if ((freq_low == region_configs[radio_region].top_freq)
&& (upward == FM_SEARCH_DIRECTION_UP))
curr_frq = region_configs[radio_region].bot_freq;
payload = curr_frq;
low_set_freq(radio, payload);
FDEBUG(radio, "%s(): curr_freq: %d, freq hi: %d\n",
__func__, curr_frq, freq_hi);
/* Enable FR, BL interrupts */
intr_flag = radio->irq_mask;
radio->irq_mask = (FM_EVENT_TUNED | FM_EVENT_BD_LMT);
low_get_search_lvl(radio, (u16 *) &payload16);
if (!payload16) {
payload16 = FM_DEFAULT_RSSI_THRESHOLD;
low_set_search_lvl(radio, (u16) payload16);
}
FDEBUG(radio, "%s(): SEARCH_LVL1: 0x%x\n", __func__, payload16);
if (!radio->low->fm_config.mute_coeffs_soft) {
radio->low->fm_config.mute_coeffs_soft =
low_fm_conf_init.mute_coeffs_soft;
}
if (!radio->low->fm_config.blend_coeffs_soft) {
radio->low->fm_config.blend_coeffs_soft =
low_fm_conf_init.blend_coeffs_soft;
}
if (!radio->low->fm_config.blend_coeffs_switch) {
radio->low->fm_config.blend_coeffs_switch =
low_fm_conf_init.blend_coeffs_switch;
}
if (!radio->low->fm_config.blend_coeffs_dis)
radio->low->fm_config.blend_coeffs_dis =
low_fm_conf_init.blend_coeffs_dis;
fm_set_blend_mute(radio);
reinit_completion(&radio->flags_seek_fr_comp);
payload = tune_mode;
FDEBUG(radio,
"%s(): turn start mode: 0x%x\n", __func__, payload);
ret = low_set_tuner_mode(radio, (u16) payload);
if (ret != 0)
return -EIO;
/* Wait for tune ended interrupt */
timeleft =
wait_for_completion_timeout(&radio->flags_seek_fr_comp,
FM_DRV_SEEK_TIMEOUT);
/* seek cancel status */
if (radio->seek_status == FM_TUNER_STOP_SEARCH_MODE) {
dev_info(radio->dev, ">>> rev seek cancel");
return -ENODATA;
}
FDEBUG(radio,
"FDEBUG > Seek done rev complete!! freq %d, irq_flag: 0x%x, bl:%d\n",
radio->low->fm_state.freq, radio->irq_flag, bl_1st);
int_reason = radio->low->fm_state.flags &
(FM_EVENT_TUNED | FM_EVENT_BD_LMT);
if ((save_freq == region_configs[radio_region].bot_freq)
|| (save_freq == region_configs[radio_region].top_freq))
bl_1st = 1;
if ((save_freq == region_configs[radio_region].bot_freq)
&& (upward == FM_SEARCH_DIRECTION_UP)) {
bl_1st = 0;
bl_2nd = 1;
tune_mode = FM_TUNER_AUTONOMOUS_SEARCH_MODE;
}
if ((save_freq == region_configs[radio_region].top_freq)
&& (upward == FM_SEARCH_DIRECTION_DOWN)) {
bl_1st = 0;
bl_2nd = 1;
tune_mode = FM_TUNER_AUTONOMOUS_SEARCH_MODE;
}
if ((int_reason & FM_EVENT_BD_LMT) && (bl_1st == 0) && (bl_3nd == 0)) {
if (wrap_around) {
freq_low = radio->low->fm_state.freq;
bl_1st = 1;
if (bl_2nd)
bl_3nd = 1;
/* Re-enable default FM interrupts */
radio->irq_mask = intr_flag;
radio->wrap_around = 1;
FDEBUG(radio, "> bl set %d, %d, save %d\n",
radio->seek_freq, radio->wrap_around, save_freq);
goto again;
} else
ret = -EINVAL;
}
/* Read freq to know where operation tune operation stopped */
payload = radio->low->fm_state.freq;
radio->freq = payload;
dev_info(radio->v4l2dev.dev, "Seek freq %d\n", radio->freq);
radio->seek_freq = 0;
radio->wrap_around = 0;
FUNC_EXIT(radio);
return ret;
}
static int s610_radio_s_hw_freq_seek(struct file *file, void *priv,
const struct v4l2_hw_freq_seek *seek)
{
int ret = 0;
struct s610_radio *radio = video_drvdata(file);
u32 seek_low, seek_hi, seek_spacing;
FUNC_ENTRY(radio);
if (file->f_flags & O_NONBLOCK)
return -EAGAIN;
if (seek->tuner != 0 ||
seek->type != V4L2_TUNER_RADIO)
return -EINVAL;
if (seek->rangelow >= seek->rangehigh)
ret = -EINVAL;
seek_low = radio->low->fm_state.freq;
if (seek->seek_upward)
seek_hi = region_configs[radio_region].top_freq;
else
seek_hi = region_configs[radio_region].bot_freq;
seek_spacing = seek->spacing / 1000;
FDEBUG(radio, "%s(): get freq low: %d, freq hi: %d\n",
__func__, seek_low, seek_hi);
FDEBUG(radio,
"%s(): upward:%d, warp: %d, spacing: %d\n", __func__,
seek->seek_upward, seek->wrap_around, seek->spacing);
if (!wake_lock_active(&radio->wakelock))
wake_lock(&radio->wakelock);
ret = fm_rx_seek(radio, seek->seek_upward, seek->wrap_around,
seek_spacing, seek_low, seek_hi);
if (ret < 0)
dev_err(radio->v4l2dev.dev, "RX seek failed - %d\n", ret);
if (wake_lock_active(&radio->wakelock))
wake_unlock(&radio->wakelock);
FUNC_EXIT(radio);
return ret;
}
/* Configures mute mode (Mute Off/On/Attenuate) */
int fm_set_mute_mode(struct s610_radio *radio, u8 mute_mode_toset)
{
u16 payload = radio->mute_mode;
int ret = 0;
FUNC_ENTRY(radio);
radio->mute_mode = mute_mode_toset;
switch (radio->mute_mode) {
case FM_MUTE_ON:
payload = FM_RX_AC_MUTE_MODE;
break;
case FM_MUTE_OFF:
payload = FM_RX_UNMUTE_MODE;
break;
}
/* Write register : mute */
ret = low_set_mute_state(radio, payload);
if (ret != 0)
ret = -EIO;
FUNC_EXIT(radio);
return ret;
}
/* Enable/Disable RDS */
int fm_set_rds_mode(struct s610_radio *radio, u8 rds_en_dis)
{
int ret;
u16 payload;
int ii;
u32 fifo_tmp;
FUNC_ENTRY(radio);
if (rds_en_dis != FM_RDS_ENABLE && rds_en_dis != FM_RDS_DISABLE) {
dev_err(radio->v4l2dev.dev, "Invalid rds option\n");
return -EINVAL;
}
if (rds_en_dis == FM_RDS_ENABLE) {
if (!wake_lock_active(&radio->rdswakelock))
wake_lock(&radio->rdswakelock);
mdelay(100);
atomic_set(&radio->is_rds_new, 0);
radio->rds_cnt_mod = 0;
radio->rds_n_count = 0;
radio->rds_r_count = 0;
radio->rds_read_cnt = 0;
radio->rds_sync_loss_cnt = 0;
init_waitqueue_head(&radio->core->rds_read_queue);
payload = radio->core->power_mode;
payload |= S610_POWER_ON_RDS;
ret = s610_core_set_power_state(radio,
payload);
if (ret != 0) {
dev_err(radio->v4l2dev.dev,
"Failed to set for RDS power state\n");
return -EIO;
}
/* Write register : RDS on */
/* Turn on RDS and RDS circuit */
fm_rds_on(radio);
/* Write register : clear RDS cache */
/* flush RDS buffer */
payload = FM_RX_RDS_FLUSH_FIFO;
ret = low_set_rds_cntr(radio, payload);
if (ret != 0) {
dev_err(radio->v4l2dev.dev,
"Failed to write reg for default RDS_CNTR\n");
return -EIO;
}
/* Write register : clear panding interrupt flags */
/* Read flags - just to clear any pending interrupts. */
payload = fm_get_flags(radio);
/* Write register : set RDS memory depth */
/* Set RDS FIFO threshold value */
if (radio->rds_parser_enable)
radio->low->fm_state.rds_mem_thresh = RDS_MEM_MAX_THRESH_PARSER;
else
radio->low->fm_state.rds_mem_thresh = RDS_MEM_MAX_THRESH;
/* Write register : set RDS interrupt enable */
/* Enable RDS interrupt */
radio->irq_mask |= FM_EVENT_BUF_FUL;
/* Update our local flag */
radio->rds_flag = FM_RDS_ENABLE;
/* RDS parser reset */
if (radio->rds_parser_enable)
fm_rds_parser_reset(&(radio->pi));
/* FIFO clear */
for (ii = 0; ii < 32; ii++)
fifo_tmp = fmspeedy_get_reg_work(0xFFF3C0);
#ifdef RDS_POLLING_ENABLE
fm_rds_periodic_update((unsigned long) radio);
#endif /*RDS_POLLING_ENABLE*/
} else if (
rds_en_dis == FM_RDS_DISABLE) {
payload = radio->core->power_mode;
payload &= ~S610_POWER_ON_RDS;
ret = s610_core_set_power_state(radio,
payload);
if (ret != 0) {
dev_err(radio->v4l2dev.dev,
"Failed to set for RDS power state\n");
return -EIO;
}
/* Write register : RDS off */
/* Turn off RX RDS */
fm_rds_off(radio);
/* Update RDS local cache */
radio->irq_mask &= ~(FM_EVENT_BUF_FUL);
radio->rds_flag = FM_RDS_DISABLE;
#ifdef RDS_POLLING_ENABLE
fm_rds_periodic_cancel((unsigned long) radio);
#endif /*RDS_POLLING_ENABLE*/
/* Service pending read */
wake_up_interruptible(&radio->core->rds_read_queue);
if (wake_lock_active(&radio->rdswakelock))
wake_unlock(&radio->rdswakelock);
}
FUNC_EXIT(radio);
return ret;
}
int fm_set_deemphasis(struct s610_radio *radio, u16 vol_to_set)
{
int ret = 0;
u16 payload;
payload = vol_to_set;
/* Write register : deemphasis */
ret = low_set_demph_mode(radio, payload);
if (ret != 0)
return -EIO;
radio->deemphasis_mode = vol_to_set;
return ret;
}
static int s610_radio_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
{
struct s610_radio *radio = v4l2_ctrl_handler_to_radio(ctrl->handler);
u16 payload;
int ret = 0;
FUNC_ENTRY(radio);
if (!radio)
return -ENODEV;
s610_core_lock(radio->core);
switch (ctrl->id) {
case V4L2_CID_S610_CH_SPACING:
payload = radio->low->fm_tuner_state.freq_step / 100;
FDEBUG(radio, "%s(), FREQ_STEP val:%d, ret : %d\n",
__func__, payload, ret);
ctrl->val = payload;
break;
case V4L2_CID_S610_CH_BAND:
payload = radio->low->fm_state.band;
FDEBUG(radio, "%s(), BAND val:%d, ret : %d\n",
__func__, payload, ret);
ctrl->val = payload;
break;
case V4L2_CID_S610_SOFT_STEREO_BLEND:
payload = radio->low->fm_state.use_switched_blend ?
MODE_MASK_BLEND : 0;
FDEBUG(radio, "%s(), MOST_BLEND val:%d, ret : %d\n",
__func__, ctrl->val, ret);
ctrl->val = payload;
break;
case V4L2_CID_S610_SOFT_STEREO_BLEND_COEFF:
payload = radio->low->fm_config.blend_coeffs_soft;
FDEBUG(radio, "%s(),BLEND_COEFF_SOFT val:%d, ret: %d\n",
__func__, ctrl->val, ret);
ctrl->val = payload;
break;
case V4L2_CID_S610_SOFT_MUTE_COEFF:
payload = radio->low->fm_config.mute_coeffs_soft;
FDEBUG(radio, "%s(), MUTE_COEFF_SOFT val:%d, ret: %d\n",
__func__, ctrl->val, ret);
ctrl->val = payload;
break;
case V4L2_CID_S610_RSSI_CURR:
fm_update_rssi(radio);
ctrl->val = radio->low->fm_state.rssi;
FDEBUG(radio, "%s(), RSSI_CURR val:%d, ret : %d\n",
__func__, ctrl->val, ret);
break;
case V4L2_CID_S610_SNR_CURR:
radio->low->fm_state.snr = fmspeedy_get_reg(0xFFF2C5);
payload = radio->low->fm_state.snr;
FDEBUG(radio, "%s(), SNR_CURR val:%d, ret : %d\n",
__func__, payload, ret);
ctrl->val = payload;
break;
case V4L2_CID_S610_SEEK_CANCEL:
ctrl->val = 0;
break;
case V4L2_CID_S610_SEEK_MODE:
if (radio->seek_mode == FM_TUNER_AUTONOMOUS_SEARCH_MODE_NEXT)
ctrl->val = 4;
else
ctrl->val = radio->seek_mode;
FDEBUG(radio, "%s(), SEEK_MODE val:%d, ret : %d\n",
__func__, ctrl->val, ret);
break;
case V4L2_CID_S610_RDS_ON:
if (radio->low->fm_state.fm_pwr_on & S610_POWER_ON_RDS)
ctrl->val = FM_RDS_ENABLE;
else
ctrl->val = FM_RDS_DISABLE;
FDEBUG(radio, "%s(), RDS_ON:%d, ret: %d\n", __func__,
ctrl->val, ret);
break;
case V4L2_CID_S610_IF_COUNT1:
payload = radio->low->fm_config.search_conf.weak_ifca_m;
FDEBUG(radio, "%s(), IF_CNT1 val:%d, ret : %d\n",
__func__, ctrl->val, ret);
ctrl->val = payload;
break;
case V4L2_CID_S610_IF_COUNT2:
payload = radio->low->fm_config.search_conf.normal_ifca_m;
FDEBUG(radio, "%s(), IF_CNT2 val:%d, ret : %d\n",
__func__, ctrl->val, ret);
ctrl->val = payload;
break;
case V4L2_CID_S610_RSSI_TH:
ctrl->val = radio->low->fm_state.rssi;
FDEBUG(radio, "%s(), RSSI_CURR val:%d, ret : %d\n",
__func__, ctrl->val, ret);
break;
case V4L2_CID_S610_KERNEL_VER:
ctrl->val |= FM_RADIO_RDS_PARSER_VER_CHECK;
FDEBUG(radio, "%s(), KERNEL_VER val:%d, ret : %d\n",
__func__, ctrl->val, ret);
break;
case V4L2_CID_S610_SOFT_STEREO_BLEND_REF:
ctrl->val = radio->rssi_ref_enable;
FDEBUG(radio, "%s(), SOFT_STEREO_BLEND_REF val:%d, ret : %d\n",
__func__, ctrl->val, ret);
break;
default:
ret = -EINVAL;
dev_err(radio->v4l2dev.dev,
"g_volatile_ctrl Unknown IOCTL: %d\n",
(int) ctrl->id);
break;
}
s610_core_unlock(radio->core);
FUNC_EXIT(radio);
return ret;
}
static int s610_radio_s_ctrl(struct v4l2_ctrl *ctrl)
{
int ret = 0;
u16 payload = 0;
struct s610_radio *radio = v4l2_ctrl_handler_to_radio(ctrl->handler);
FUNC_ENTRY(radio);
s610_core_lock(radio->core);
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE: /* set mute */
ret = fm_set_mute_mode(radio, (u8)ctrl->val);
FDEBUG(radio, "%s(), mute val:%d, ret : %d\n", __func__,
ctrl->val, ret);
if (ret != 0)
ret = -EIO;
break;
case V4L2_CID_AUDIO_VOLUME: /* set volume gain */
fm_set_audio_gain(radio, (u8)ctrl->val);
FDEBUG(radio, "%s(), volume val:%d, ret : %d\n", __func__,
ctrl->val, ret);
break;
case V4L2_CID_TUNE_DEEMPHASIS:
if (ctrl->val == 0)
break;
payload = (u16)ctrl->val;
if (ctrl->val > 0)
payload -= 1;
ret = fm_set_deemphasis(radio, payload);
FDEBUG(radio, "%s(), deemphasis val:%d, ret : %d, payload:%d\n", __func__,
ctrl->val, ret, payload);
if (ret != 0)
ret = -EINVAL;
break;
case V4L2_CID_S610_CH_SPACING:
radio->freq_step = ctrl->val;
radio->low->fm_tuner_state.freq_step =
radio->low->fm_freq_steps[ctrl->val];
FDEBUG(radio, "%s(), FREQ_STEP val:%d, ret : %d\n",
__func__, ctrl->val, ret);
break;
case V4L2_CID_S610_CH_BAND:
radio_region = ctrl->val;
radio->radio_region = ctrl->val;
payload = ctrl->val;
fm_set_band(radio, payload);
FDEBUG(radio, "%s(), BAND val:%d, ret : %d\n",
__func__, ctrl->val, ret);
break;
case V4L2_CID_S610_SOFT_STEREO_BLEND:
ret = low_set_most_blend(radio, ctrl->val);
FDEBUG(radio, "%s(), MOST_BLEND val:%d, ret : %d\n",
__func__, ctrl->val, ret);
if (ret != 0)
ret = -EIO;
break;
case V4L2_CID_S610_SOFT_STEREO_BLEND_COEFF:
radio->low->fm_config.blend_coeffs_soft = (u16)ctrl->val;
fm_set_blend_mute(radio);
FDEBUG(radio, "%s(), BLEND_COEFF_SOFT val:%d,ret: %d\n",
__func__, ctrl->val, ret);
break;
case V4L2_CID_S610_SOFT_MUTE_COEFF:
radio->low->fm_config.mute_coeffs_soft = (u16)ctrl->val;
fm_set_blend_mute(radio);
FDEBUG(radio, "%s(), SOFT_MUTE_COEFF val:%d, ret: %d\n",
__func__, ctrl->val, ret);
break;
case V4L2_CID_S610_RSSI_CURR:
ctrl->val = 0;
break;
case V4L2_CID_S610_SEEK_CANCEL:
if (ctrl->val) {
payload = FM_TUNER_STOP_SEARCH_MODE;
low_set_tuner_mode(radio, payload);
FDEBUG(radio, "%s(), SEEK_CANCEL val:%d, ret: %d\n",
__func__, ctrl->val, ret);
radio->seek_mode = FM_TUNER_STOP_SEARCH_MODE;
}
break;
case V4L2_CID_S610_SEEK_MODE:
if (ctrl->val == 4)
radio->seek_mode = FM_TUNER_AUTONOMOUS_SEARCH_MODE_NEXT;
else
radio->seek_mode = ctrl->val;
FDEBUG(radio, "%s(), SEEK_MODE val:%d, ret : %d\n",
__func__, ctrl->val, ret);
break;
case V4L2_CID_S610_RDS_ON:
payload = (u16)ctrl->val;
if (payload & RDS_PARSER_ENABLE) {
radio->rds_parser_enable = TRUE;
} else {
radio->rds_parser_enable = FALSE;
}
payload &= FM_RDS_ENABLE;
ret = fm_set_rds_mode(radio, payload);
FDEBUG(radio, "%s(), RDS_RECEPTION:%d, ret:%d parser:%d\n", __func__,
payload, ret, radio->rds_parser_enable);
if (ret != 0)
ret = -EINVAL;
break;
case V4L2_CID_S610_SNR_CURR:
ctrl->val = 0;
break;
case V4L2_CID_S610_IF_COUNT1:
radio->low->fm_config.search_conf.weak_ifca_m =
(u16)ctrl->val;
FDEBUG(radio, "%s(), IF_CNT1 val:%d, ret : %d\n",
__func__, ctrl->val, ret);
break;
case V4L2_CID_S610_IF_COUNT2:
radio->low->fm_config.search_conf.normal_ifca_m =
(u16)ctrl->val;
FDEBUG(radio, "%s(), IF_CNT2 val:%d, ret : %d\n",
__func__, ctrl->val, ret);
break;
case V4L2_CID_S610_RSSI_TH:
low_set_search_lvl(radio, (u16)ctrl->val);
FDEBUG(radio, "%s(), RSSI_TH val:%d, ret : %d\n",
__func__, ctrl->val, ret);
break;
case V4L2_CID_S610_KERNEL_VER:
ctrl->val = 0;
break;
case V4L2_CID_S610_SOFT_STEREO_BLEND_REF:
payload = (u16)ctrl->val;
if (payload & RSSI_REF_ENABLE)
radio->rssi_ref_enable = TRUE;
else
radio->rssi_ref_enable = FALSE;
FDEBUG(radio, "%s(), SOFT_STEREO_BLEND_REF val:%d, ret : %d\n",
__func__, ctrl->val, ret);
break;
default:
ret = -EINVAL;
dev_err(radio->v4l2dev.dev, "s_ctrl Unknown IOCTL: 0x%x\n",
(int)ctrl->id);
break;
}
s610_core_unlock(radio->core);
FUNC_EXIT(radio);
return ret;
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int s610_radio_g_register(struct file *file, void *fh,
struct v4l2_dbg_register *reg)
{
struct s610_radio *radio = video_drvdata(file);
FUNC_ENTRY(radio);
s610_core_lock(radio->core);
reg->size = 4;
reg->val = (__u64)fmspeedy_get_reg((u32)reg->reg);
s610_core_unlock(radio->core);
FUNC_EXIT(radio);
return 0;
}
static int s610_radio_s_register(struct file *file, void *fh,
const struct v4l2_dbg_register *reg)
{
struct s610_radio *radio = video_drvdata(file);
FUNC_ENTRY(radio);
s610_core_lock(radio->core);
fmspeedy_set_reg((u32)reg->reg, (u32)reg->val);
s610_core_unlock(radio->core);
FUNC_EXIT(radio);
return 0;
}
#endif
int s610_core_set_power_state(struct s610_radio *radio,
u8 next_state)
{
int ret = 0;
FUNC_ENTRY(radio);
ret = low_set_power(radio, next_state);
if (ret != 0) {
dev_err(radio->v4l2dev.dev,
"Failed to write reg for power on\n");
ret = -EIO;
goto ret_power;
}
radio->core->power_mode |= next_state;
ret_power:
FUNC_EXIT(radio);
return ret;
}
void fm_prepare(struct s610_radio *radio)
{
FUNC_ENTRY(radio);
spin_lock_init(&radio->rds_buff_lock);
/* Initial FM device variables */
/* Region info */
radio->region = region_configs[radio_region];
radio->mute_mode = FM_MUTE_OFF;
radio->rf_depend_mute = FM_RX_RF_DEPENDENT_MUTE_OFF;
radio->rds_flag = FM_RDS_DISABLE;
radio->freq = FM_UNDEFINED_FREQ;
radio->rds_mode = FM_RDS_SYSTEM_RDS;
radio->af_mode = FM_RX_RDS_AF_SWITCH_MODE_OFF;
radio->core->power_mode = S610_POWER_DOWN;
radio->seek_weak_rssi = SCAN_WEAK_SIG_THRESHOLD;
/* Reset RDS buffer cache if need */
/* Initial wait queue for rds read */
init_waitqueue_head(&radio->core->rds_read_queue);
radio->idle_cnt_mod = 0;
radio->rds_new_stat = 0;
FUNC_EXIT(radio);
}
#ifdef USE_FM_LNA_ENABLE
static int set_eLNA_gpio(struct s610_radio *radio, int stat)
{
if (radio->without_elna)
return -EPERM;
if (!gpio_is_valid(radio->elna_gpio)) {
return -EINVAL;
} else {
dev_info(radio->v4l2dev.dev, "%s(%d)\n", __func__, stat);
gpio_set_value(radio->elna_gpio, stat);
}
dev_info(radio->v4l2dev.dev, "Get elna_gpio(%d)\n",
gpio_get_value(radio->elna_gpio));
return 0;
}
#endif /* USE_FM_LNA_ENABLE */
static int s610_radio_fops_open(struct file *file)
{
int ret;
struct s610_radio *radio = video_drvdata(file);
static bool run_once = true;
FUNC_ENTRY(radio);
shared_fm_open_cnt++;
ret = v4l2_fh_open(file);
if (ret)
return ret;
if (v4l2_fh_is_singular_file(file)) {
#ifdef CONFIG_SCSC_FM
/* Start FM/WLBT LDO */
ret = mx250_fm_request();
if (ret < 0) {
dev_err(radio->v4l2dev.dev,
"mx250_fm_request() failed with err %d\n", ret);
return ret;
}
#endif /* CONFIG_SCSC_FM */
#ifdef USE_FM_LNA_ENABLE
if (radio->elna_gpio != -EINVAL) {
dev_info(radio->v4l2dev.dev,
"(%s):FM eLNA gpio: %d\n",
__func__, radio->elna_gpio);
if (gpio_request_one(radio->elna_gpio,
GPIOF_OUT_INIT_LOW,
"LNA_GPIO_EN")) {
dev_info(radio->v4l2dev.dev,
"Failed to request gpio for FM eLNA\n");
}
if (set_eLNA_gpio(radio, GPIO_HIGH)) {
dev_info(radio->v4l2dev.dev,
"Failed to set gpio HIGH for FM eLNA\n");
} else
dev_info(radio->v4l2dev.dev,
"Set gpio HIGH for FM eLNA\n");
}
#endif /* USE_FM_LNA_ENABLE */
s610_core_lock(radio->core);
atomic_set(&radio->is_doing, 0);
atomic_set(&radio->is_rds_doing, 0);
#ifdef USE_AUDIO_PM
if (radio->a_dev) {
ret = pm_runtime_get_sync(radio->a_dev);
if (ret < 0) {
dev_err(radio->v4l2dev.dev,
"audio get_sync not work: not suspend %d\n", ret);
goto err_open;
}
abox_request_cpu_gear_sync(radio->a_dev,
dev_get_drvdata(radio->a_dev), ABOX_CPU_GEAR_FM, ABOX_CPU_GEAR_MAX);
}
#endif /* USE_AUDIO_PM */
ret = pm_runtime_get_sync(radio->dev);
if (ret < 0) {
dev_err(radio->v4l2dev.dev,
"get_sync failed with err %d\n", ret);
goto err_open;
}
fmspeedy_wakeup();
if (run_once) {
fm_ds_set(0);
fm_aux_pll_off();
run_once = false;
}
fm_get_version_number();
/* Initail fm low structure */
ret = init_low_struc(radio);
if (ret < 0) {
dev_err(radio->v4l2dev.dev,
"Failed to init reg for initial struc\n");
goto err_open;
}
/* Booting fm */
ret = fm_boot(radio);
if (ret < 0) {
dev_err(radio->v4l2dev.dev,
"Failed to set reg for FM boot\n");
goto err_open;
}
fm_prepare(radio);
ret = s610_core_set_power_state(radio,
S610_POWER_ON_FM);
if (ret < 0) {
dev_err(radio->v4l2dev.dev,
"Failed to write reg for power on\n");
goto err_open;
}
ret = s610_radio_pretune(radio);
if (ret < 0) {
dev_err(radio->v4l2dev.dev,
"Failed to write reg for preturn\n");
goto power_down;
}
radio->core->power_mode = S610_POWER_ON_FM;
mdelay(100);
#ifndef RDS_POLLING_ENABLE
/* Speedy master interrupt enable */
fm_speedy_m_int_enable();
#else
fm_speedy_m_int_disable();
#endif /*RDS_POLLING_ENABLE*/
s610_core_unlock(radio->core);
/*Must be done after s610_core_unlock to prevent a deadlock*/
v4l2_ctrl_handler_setup(&radio->ctrl_handler);
}
FUNC_EXIT(radio);
return ret;
power_down:
s610_core_set_power_state(radio,
S610_POWER_DOWN);
err_open:
s610_core_unlock(radio->core);
v4l2_fh_release(file);
FUNC_EXIT(radio);
return ret;
}
static int s610_radio_fops_release(struct file *file)
{
int ret = 0;
struct s610_radio *radio = video_drvdata(file);
FUNC_ENTRY(radio);
if (v4l2_fh_is_singular_file(file)) {
s610_core_lock(radio->core);
s610_core_set_power_state(radio, S610_POWER_DOWN);
/* Speedy master interrupt disable */
fm_speedy_m_int_disable();
/* FM demod power off */
fm_power_off();
cancel_delayed_work_sync(&radio->dwork_sig2);
cancel_delayed_work_sync(&radio->dwork_tune);
#ifdef ENABLE_RDS_WORK_QUEUE
cancel_work_sync(&radio->work);
#endif /*ENABLE_RDS_WORK_QUEUE*/
#ifdef IDLE_POLLING_ENABLE
fm_idle_periodic_cancel((unsigned long) radio);
#endif /*IDLE_POLLING_ENABLE*/
#ifdef RDS_POLLING_ENABLE
fm_rds_periodic_cancel((unsigned long) radio);
#endif /*RDS_POLLING_ENABLE*/
/*#ifdef ENABLE_IF_WORK_QUEUE
cancel_work_sync(&radio->if_work);
#endif*/ /*ENABLE_IF_WORK_QUEUE*/
pm_runtime_put_sync(radio->dev);
#ifdef USE_AUDIO_PM
if (radio->a_dev) {
abox_request_cpu_gear_sync(radio->a_dev,
dev_get_drvdata(radio->a_dev), ABOX_CPU_GEAR_FM, ABOX_CPU_GEAR_MIN);
pm_runtime_put_sync(radio->a_dev);
}
#endif /* USE_AUDIO_PM */
s610_core_unlock(radio->core);
#ifdef USE_FM_LNA_ENABLE
if (radio->elna_gpio != -EINVAL) {
if (set_eLNA_gpio(radio, GPIO_LOW))
dev_info(radio->v4l2dev.dev,
"Failed to set gpio LOW for FM eLNA\n");
else
dev_info(radio->v4l2dev.dev,
"Set gpio LOW for FM eLNA\n");
gpio_free(radio->elna_gpio);
}
#endif /* USE_FM_LNA_ENABLE */
#ifdef CONFIG_SCSC_FM
/* Stop FM/WLBT LDO */
ret = mx250_fm_release();
if (ret < 0)
dev_err(radio->v4l2dev.dev,
"mx250_fm_release() failed with err %d\n", ret);
#endif
}
if (wake_lock_active(&radio->wakelock))
wake_unlock(&radio->wakelock);
if (wake_lock_active(&radio->rdswakelock))
wake_unlock(&radio->rdswakelock);
ret = v4l2_fh_release(file);
shared_fm_open_cnt--;
return ret;
}
static ssize_t s610_radio_fops_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
int ret;
size_t rsize, blocks;
struct s610_radio *radio = video_drvdata(file);
size_t rds_max_thresh;
FUNC_ENTRY(radio);
ret = wait_event_interruptible(radio->core->rds_read_queue,
atomic_read(&radio->is_rds_new));
if (ret < 0)
return -EINTR;
if (!atomic_read(&radio->is_rds_new)) {
radio->rds_new_stat++;
return -ERESTARTSYS;
}
if (s610_core_lock_interruptible(radio->core))
return -ERESTARTSYS;
if (radio->rds_parser_enable)
#ifdef USE_RINGBUFF_API
rds_max_thresh = ringbuf_bytes_used(&radio->rds_rb);
#else
rds_max_thresh = RDS_MEM_MAX_THRESH_PARSER;
#endif /* USE_RINGBUFF_API */
else
rds_max_thresh = RDS_MEM_MAX_THRESH;
/* Turn on RDS mode */
memset(radio->rds_buf, 0, 480);
rsize = rds_max_thresh;
rsize = min(rsize, count);
blocks = rsize/FM_RDS_BLK_SIZE;
ret = fm_read_rds_data(radio, radio->rds_buf,
(int)rsize, (u16 *)&blocks);
if (ret == 0) {
dev_err(radio->v4l2dev.dev, ">>> Failed to read rds mode\n");
goto read_unlock;
}
/* always transfer rds complete blocks */
if (copy_to_user(buf, &radio->rds_buf, rsize))
ret = -EFAULT;
if (radio->rds_parser_enable) {
RDSEBUG(radio, "RDS RD done:%08d:%08d fifo err:%08d type(%02X) len(%02X)",
radio->rds_read_cnt, radio->rds_n_count, radio->rds_fifo_err_cnt,
radio->rds_buf[0], radio->rds_buf[1]);
} else {
if ((radio->rds_buf[2]&0x07) != RDS_BLKTYPE_A) {
radio->rds_reset_cnt++;
if (radio->rds_reset_cnt > radio->low->fm_state.rds_unsync_blk_cnt) {
fm_set_rds_mode(radio, FM_RDS_DISABLE);
mdelay(10);
fm_set_rds_mode(radio, FM_RDS_ENABLE);
radio->rds_reset_cnt = 0;
RDSEBUG(radio, "RDS reset! cause of block type invalid");
}
RDSEBUG(radio, "RDS block type invalid! %02d, %08d",
(radio->rds_buf[2]&0x07), radio->rds_reset_cnt);
}
RDSEBUG(radio, "RDS RD done:%08d:%08d fifo err:%08d block type0:%02X,%02X",
radio->rds_read_cnt, radio->rds_n_count, radio->rds_fifo_err_cnt,
(radio->rds_buf[2]&0x11)>>3, radio->rds_buf[2]&0x07);
}
radio->rds_read_cnt++;
ret = rsize;
read_unlock:
atomic_set(&radio->is_rds_new, 0);
atomic_set(&gradio->is_doing, 0);
atomic_set(&gradio->is_rds_doing, 0);
s610_core_unlock(radio->core);
FUNC_EXIT(radio);
return ret;
}
static unsigned int s610_radio_fops_poll(struct file *file,
struct poll_table_struct *pts)
{
struct s610_radio *radio = video_drvdata(file);
unsigned long req_events = poll_requested_events(pts);
unsigned int ret = v4l2_ctrl_poll(file, pts);
FUNC_ENTRY(radio);
if (req_events & (POLLIN | POLLRDNORM)) {
poll_wait(file, &radio->core->rds_read_queue, pts);
if (atomic_read(&radio->is_rds_new))
ret = POLLIN | POLLRDNORM;
}
FDEBUG(radio, "POLL RET: 0x%x pwmode: %d freq: %d",
ret,
radio->core->power_mode,
radio->freq);
FUNC_EXIT(radio);
return ret;
}
static const struct v4l2_file_operations s610_fops = {
.owner = THIS_MODULE,
.read = s610_radio_fops_read,
.poll = s610_radio_fops_poll,
.unlocked_ioctl = video_ioctl2,
.open = s610_radio_fops_open,
.release = s610_radio_fops_release,
};
static const struct v4l2_ioctl_ops S610_ioctl_ops = {
.vidioc_querycap = s610_radio_querycap,
.vidioc_g_tuner = s610_radio_g_tuner,
.vidioc_s_tuner = s610_radio_s_tuner,
.vidioc_g_frequency = s610_radio_g_frequency,
.vidioc_s_frequency = s610_radio_s_frequency,
.vidioc_s_hw_freq_seek = s610_radio_s_hw_freq_seek,
.vidioc_enum_freq_bands = s610_radio_enum_freq_bands,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.vidioc_g_register = s610_radio_g_register,
.vidioc_s_register = s610_radio_s_register,
#endif
};
static const struct video_device s610_viddev_template = {
.fops = &s610_fops,
.name = DRIVER_NAME,
.release = video_device_release_empty,
};
static int s610_radio_add_new_custom(struct s610_radio *radio,
enum s610_ctrl_idx idx, unsigned long flag)
{
int ret;
struct v4l2_ctrl *ctrl;
ctrl = v4l2_ctrl_new_custom(&radio->ctrl_handler,
&s610_ctrls[idx],
NULL);
ret = radio->ctrl_handler.error;
if (ctrl == NULL && ret) {
dev_err(radio->v4l2dev.dev,
"Could not initialize '%s' control %d\n",
s610_ctrls[idx].name, ret);
return -EINTR;
}
if (flag && (ctrl != NULL))
ctrl->flags |= flag;
return ret;
}
#ifndef RDS_POLLING_ENABLE
static irqreturn_t s610_hw_irq_handle(int irq, void *devid)
{
struct s610_radio *radio = devid;
u32 int_stat;
spin_lock(&radio->slock);
int_stat = __raw_readl(radio->fmspeedy_base+FMSPDY_STAT);
if (int_stat & FM_SLV_INT)
fm_isr(radio);
spin_unlock(&radio->slock);
return IRQ_HANDLED;
}
#endif /* RDS_POLLING_ENABLE */
MODULE_ALIAS("platform:s610-radio");
static const struct of_device_id exynos_fm_of_match[] = {
{
.compatible = "samsung,exynos9610-fm",
},
{},
};
MODULE_DEVICE_TABLE(of, exynos_fm_of_match);
signed int exynos_get_fm_open_status(void)
{
pr_info("%s(): shared fm open count: %d", __func__, shared_fm_open_cnt);
return (shared_fm_open_cnt);
}
EXPORT_SYMBOL(exynos_get_fm_open_status);
/* bit 28:
Global hardware automatic clock gating enable on CMU module : CMU
*/
#define ENABLE_AUTOMATIC_CLKGATING 28
void disable_clk_gating(struct s610_radio *radio)
{
void __iomem *cmu_disaud_800;
u32 cmu_disaud_800_val;
FUNC_ENTRY(radio);
cmu_disaud_800 = radio->disaud_cmu_base+0x800;
/* Read register */
cmu_disaud_800_val = read32(cmu_disaud_800);
FDEBUG(radio,
"cmu_disaud_800: 0x%08X,\n",
cmu_disaud_800_val);
if (GetBits(cmu_disaud_800, ENABLE_AUTOMATIC_CLKGATING, 1))
SetBits(cmu_disaud_800, ENABLE_AUTOMATIC_CLKGATING, 1, 0);
/* Read register */
cmu_disaud_800_val = read32(cmu_disaud_800);
FDEBUG(radio,
"cmu_disaud_800: 0x%08X,\n",
cmu_disaud_800_val);
FUNC_EXIT(radio);
}
void enable_FM_mux_clk_aud(struct s610_radio *radio)
{
void __iomem *cmu_disaud_100c;
u32 cmu_disaud_100c_val;
FUNC_ENTRY(radio);
cmu_disaud_100c = radio->disaud_cmu_base+0x100C;
/* Read register */
cmu_disaud_100c_val = read32(cmu_disaud_100c);
FDEBUG(radio,
"befor: cmu_disaud_100c: 0x%08X,\n",
cmu_disaud_100c_val);
if (GetBits(cmu_disaud_100c, ENABLE_AUTOMATIC_CLKGATING, 1))
SetBits(cmu_disaud_100c, ENABLE_AUTOMATIC_CLKGATING, 1, 0);
/* Read register */
cmu_disaud_100c_val = read32(cmu_disaud_100c);
FDEBUG(radio,
"after: cmu_disaud_100c: 0x%08X,\n",
cmu_disaud_100c_val);
FUNC_EXIT(radio);
}
#ifdef USE_AUDIO_PM
static struct device_node *exynos_audio_parse_dt(struct s610_radio *radio)
{
struct platform_device *pdev = NULL;
struct device_node *np = NULL;
np = of_find_compatible_node(NULL, NULL, "samsung,abox");
if (!np) {
dev_err(radio->dev, "abox device is not available\n");
return NULL;
}
pdev = of_find_device_by_node(np);
if (!pdev) {
dev_err(radio->dev, "%s: failed to get audio platform_device\n", __func__);
return NULL;
}
radio->a_dev = &pdev->dev;
return np;
}
#endif /* USE_AUDIO_PM */
static int s610_radio_probe(struct platform_device *pdev)
{
unsigned long ret;
struct s610_radio *radio;
struct v4l2_ctrl *ctrl;
const struct of_device_id *match;
struct resource *resource;
struct device *dev = &pdev->dev;
static atomic_t instance = ATOMIC_INIT(0);
struct device_node *dnode;
dnode = dev->of_node;
dev_info(&pdev->dev, ">>> start FM Radio probe\n");
radio = devm_kzalloc(&pdev->dev, sizeof(*radio), GFP_KERNEL);
if (!radio)
return -ENOMEM;
radio->core = devm_kzalloc(&pdev->dev, sizeof(struct s610_core),
GFP_KERNEL);
if (!radio->core) {
ret = -ENOMEM;
goto alloc_err0;
}
radio->low = devm_kzalloc(&pdev->dev, sizeof(struct s610_low),
GFP_KERNEL);
if (!radio->low) {
ret = -ENOMEM;
goto alloc_err1;
}
radio->dev = dev;
radio->pdev = pdev;
gradio = radio;
ret = fm_clk_get(radio);
if (ret)
goto alloc_err2;
fm_clk_prepare(radio);
if (ret)
goto alloc_err2;
fm_clk_enable(radio);
if (ret) {
fm_clk_unprepare(radio);
goto alloc_err2;
}
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
spin_lock_init(&radio->slock);
spin_lock_init(&radio->rds_lock);
/* Init flags FR BL init_completion */
init_completion(&radio->flags_set_fr_comp);
init_completion(&radio->flags_seek_fr_comp);
v4l2_device_set_name(&radio->v4l2dev, DRIVER_NAME, &instance);
ret = v4l2_device_register(&pdev->dev, &radio->v4l2dev);
if (ret) {
dev_err(&pdev->dev, "Cannot register v4l2_device.\n");
goto alloc_err3;
}
match = of_match_node(exynos_fm_of_match, dev->of_node);
if (!match) {
dev_err(&pdev->dev, "failed to match node\n");
ret = -EINVAL;
goto alloc_err4;
}
resource = platform_get_resource(pdev, IORESOURCE_MEM, 0);
radio->fmspeedy_base = devm_ioremap_resource(&pdev->dev, resource);
if (IS_ERR(radio->fmspeedy_base)) {
dev_err(&pdev->dev,
"Failed to request memory region\n");
ret = -EBUSY;
goto alloc_err4;
}
resource = platform_get_resource(pdev, IORESOURCE_MEM, 1);
radio->disaud_cmu_base = devm_ioremap_resource(&pdev->dev, resource);
if (IS_ERR(radio->disaud_cmu_base)) {
dev_err(&pdev->dev,
"Failed to request memory region\n");
ret = -EBUSY;
goto alloc_err4;
}
#ifndef RDS_POLLING_ENABLE
/*save to global variavle fm speedy physical address */
resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!resource) {
dev_err(&pdev->dev, "failed to get IRQ resource\n");
ret = -ENOENT;
goto alloc_err4;
}
ret = devm_request_irq(&pdev->dev,
resource->start,
s610_hw_irq_handle,
0,
pdev->name,
radio);
if (ret) {
dev_err(&pdev->dev, "failed to install irq\n");
goto alloc_err4;
}
radio->irq = resource->start;
#endif /* RDS_POLLING_ENABLE */
#ifdef USE_FM_LNA_ENABLE
radio->elna_gpio = of_get_named_gpio(dnode, "elna_gpio", 0);
if (!gpio_is_valid(radio->elna_gpio)) {
dev_err(dev, "(%s) elna_gpio invalid. Disable elna_gpio control\n",
__func__);
radio->elna_gpio = -EINVAL;
} else {
ret = gpio_request_one(radio->elna_gpio, GPIOF_OUT_INIT_LOW,
"LNA_GPIO_EN");
if (ret)
gpio_set_value(radio->elna_gpio, GPIO_LOW);
dev_info(dev, "(%s) Enable elna_gpio control :%d\n",
__func__, gpio_get_value(radio->elna_gpio));
}
#endif /* USE_FM_LNA_ENABLE */
#ifdef USE_AUDIO_PM
if (!exynos_audio_parse_dt(radio)) {
ret = -EINVAL;
goto alloc_err4;
}
#endif /* USE_AUDIO_PM */
memcpy(&radio->videodev, &s610_viddev_template,
sizeof(struct video_device));
radio->videodev.v4l2_dev = &radio->v4l2dev;
radio->videodev.ioctl_ops = &S610_ioctl_ops;
video_set_drvdata(&radio->videodev, radio);
platform_set_drvdata(pdev, radio);
radio->v4l2dev.ctrl_handler = &radio->ctrl_handler;
v4l2_ctrl_handler_init(&radio->ctrl_handler,
1 + ARRAY_SIZE(s610_ctrls));
/* Set control */
ret = s610_radio_add_new_custom(radio, S610_IDX_CH_SPACING,
0); /*0x01*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_CH_BAND,
0); /*0x02*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_SOFT_STEREO_BLEND,
0); /*0x03*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_SOFT_STEREO_BLEND_COEFF,
0); /*0x04*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_SOFT_MUTE_COEFF,
0); /*0x05*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_RSSI_CURR,
V4L2_CTRL_FLAG_VOLATILE); /*0x06*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_SNR_CURR,
V4L2_CTRL_FLAG_VOLATILE); /*0x07*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_SEEK_CANCEL,
V4L2_CTRL_FLAG_EXECUTE_ON_WRITE); /*0x08*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_SEEK_MODE,
0); /*0x09*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_RDS_ON,
0); /*0x0A*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_IF_COUNT1,
0); /*0x0B*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_IF_COUNT2,
0); /*0x0C*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_RSSI_TH,
0); /*0x0D*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_KERNEL_VER,
V4L2_CTRL_FLAG_VOLATILE); /*0x0E*/
if (ret < 0)
goto exit;
ret = s610_radio_add_new_custom(radio, S610_IDX_SOFT_STEREO_BLEND_REF,
V4L2_CTRL_FLAG_EXECUTE_ON_WRITE|V4L2_CTRL_FLAG_VOLATILE); /*0x0F*/
if (ret < 0)
goto exit;
ctrl = v4l2_ctrl_new_std(&radio->ctrl_handler, &s610_ctrl_ops,
V4L2_CID_AUDIO_MUTE, 0, 4, 1, 1);
ret = radio->ctrl_handler.error;
if (ctrl == NULL && ret) {
dev_err(&pdev->dev,
"Could not initialize V4L2_CID_AUDIO_MUTE control %d\n",
(int)ret);
goto exit;
}
ctrl = v4l2_ctrl_new_std(&radio->ctrl_handler, &s610_ctrl_ops,
V4L2_CID_AUDIO_VOLUME, 0, 15, 1, 1);
ret = radio->ctrl_handler.error;
if (ctrl == NULL && ret) {
dev_err(&pdev->dev,
"Could not initialize V4L2_CID_AUDIO_VOLUME control %d\n",
(int)ret);
goto exit;
}
ctrl = v4l2_ctrl_new_std_menu(&radio->ctrl_handler, &s610_ctrl_ops,
V4L2_CID_TUNE_DEEMPHASIS,
V4L2_DEEMPHASIS_75_uS, 0, V4L2_PREEMPHASIS_75_uS);
ret = radio->ctrl_handler.error;
if (ctrl == NULL && ret) {
dev_err(&pdev->dev,
"Could not initialize V4L2_CID_TUNE_DEEMPHASIS control %d\n",
(int)ret);
goto exit;
}
/* register video device */
ret = video_register_device(&radio->videodev, VFL_TYPE_RADIO, -1);
if (ret < 0) {
dev_err(&pdev->dev, "Could not register video device\n");
goto exit;
}
mutex_init(&radio->lock);
s610_core_lock_init(radio->core);
/*init_waitqueue_head(&radio->core->rds_read_queue);*/
INIT_DELAYED_WORK(&radio->dwork_sig2, s610_sig2_work);
INIT_DELAYED_WORK(&radio->dwork_tune, s610_tune_work);
#ifdef RDS_POLLING_ENABLE
INIT_DELAYED_WORK(&radio->dwork_rds_poll, s610_rds_poll_work);
#endif /*RDS_POLLING_ENABLE*/
#ifdef IDLE_POLLING_ENABLE
INIT_DELAYED_WORK(&radio->dwork_idle_poll, s610_idle_poll_work);
#endif /*IDLE_POLLING_ENABLE*/
#ifdef ENABLE_RDS_WORK_QUEUE
INIT_WORK(&radio->work, s610_rds_work);
#endif /*ENABLE_RDS_WORK_QUEUE*/
#ifndef RDS_POLLING_ENABLE
#ifdef ENABLE_IF_WORK_QUEUE
INIT_WORK(&radio->if_work, s610_if_work);
#endif /*ENABLE_IF_WORK_QUEUE*/
#endif /* RDS_POLLING_ENABLE */
/* all aux pll off for WIFI/BT */
radio->rfchip_ver = S620_REV_0;
ret = of_property_read_u32(dnode, "fm_iclk_aux", &radio->iclkaux);
if (ret)
radio->iclkaux = 1;
dev_info(radio->dev, "iClk Aux: %d\n", radio->iclkaux);
ret = of_property_read_u32(dnode, "num-tcon-freq", &radio->tc_on);
if (ret) {
radio->tc_on = 0;
goto skip_tc_off;
}
fm_spur_init = devm_kzalloc(&pdev->dev, radio->tc_on * sizeof(*fm_spur_init),
GFP_KERNEL);
if (!fm_spur_init) {
dev_err(radio->dev, "Mem alloc failed for TC ON freq values, TC off\n");
radio->tc_on = 0;
goto skip_tc_off;
}
if (of_property_read_u32_array(dnode, "val-tcon-freq", fm_spur_init, radio->tc_on)) {
dev_err(radio->dev, "Getting val-tcon-freq values faild, TC off\n");
radio->tc_on = 0;
goto skip_tc_off;
}
dev_info(radio->dev, "number TC On Freq: %d\n", radio->tc_on);
skip_tc_off:
ret = of_property_read_u32(dnode, "num-trfon-freq", &radio->trf_on);
if (ret) {
radio->trf_on = 0;
goto skip_trf_off;
}
fm_spur_trf_init = devm_kzalloc(&pdev->dev, radio->trf_on * sizeof(*fm_spur_trf_init),
GFP_KERNEL);
if (!fm_spur_trf_init) {
dev_err(radio->dev, "Mem alloc failed for TRF ON freq values, TRF off\n");
radio->trf_on = 0;
goto skip_trf_off;
}
if (of_property_read_u32_array(dnode, "val-trfon-freq", fm_spur_trf_init, radio->trf_on)) {
dev_err(radio->dev, "Getting val-trfon-freq values faild, TRF off\n");
radio->trf_on = 0;
goto skip_trf_off;
}
dev_info(radio->dev, "number TRF On Freq: %d\n", radio->trf_on);
skip_trf_off:
ret = of_property_read_u32(dnode, "num-dual-clkon-freq", &radio->dual_clk_on);
if (ret) {
radio->dual_clk_on = 0;
goto skip_dual_clk_off;
}
fm_dual_clk_init = devm_kzalloc(&pdev->dev, radio->dual_clk_on * sizeof(*fm_dual_clk_init),
GFP_KERNEL);
if (!fm_dual_clk_init) {
dev_err(radio->dev, "Mem alloc failed for DUAL CLK ON freq values, DUAL CLK off\n");
radio->dual_clk_on = 0;
goto skip_dual_clk_off;
}
if (of_property_read_u32_array(dnode, "val-dual-clkon-freq", fm_dual_clk_init, radio->dual_clk_on)) {
dev_err(radio->dev, "Getting val-dual-clkon-freq values faild, DUAL CLK off\n");
radio->dual_clk_on = 0;
goto skip_dual_clk_off;
}
dev_info(radio->dev, "number DUAL CLK On Freq: %d\n", radio->dual_clk_on);
skip_dual_clk_off:
radio->vol_num = FM_RX_VOLUME_GAIN_STEP;
radio->vol_level_mod = vol_level_init;
ret = of_property_read_u32(dnode, "num-volume-level", &radio->vol_num);
if (ret) {
goto skip_vol_sel;
}
radio->vol_level_tmp = devm_kzalloc(&pdev->dev, radio->vol_num * sizeof(u32),
GFP_KERNEL);
if (!radio->vol_level_tmp) {
dev_err(radio->dev, "Mem alloc failed for Volume level values, Volume Level default setting\n");
goto skip_vol_sel;
}
if (of_property_read_u32_array(dnode, "val-vol-level", radio->vol_level_tmp, radio->vol_num)) {
dev_err(radio->dev, "Getting val-vol-level values faild, Volume Level default stting\n");
kfree(radio->vol_level_tmp);
radio->vol_num = FM_RX_VOLUME_GAIN_STEP;
goto skip_vol_sel;
}
radio->vol_level_mod = radio->vol_level_tmp;
skip_vol_sel:
dev_info(radio->dev, "volume select num: %d\n", radio->vol_num);
ret = of_property_read_u32(dnode, "vol_3db_on", &radio->vol_3db_att);
if (ret)
radio->vol_3db_att = 0;
dev_info(radio->dev, "volume -3dB: %d\n", radio->vol_3db_att);
ret = of_property_read_u32(dnode, "rssi_est_on", &radio->rssi_est_on);
if (ret)
radio->rssi_est_on = 0;
dev_info(radio->dev, "rssi_est_on: %d\n", radio->rssi_est_on);
ret = of_property_read_u32(dnode, "sw_mute_weak", &radio->sw_mute_weak);
if (ret)
radio->sw_mute_weak = 0;
dev_info(radio->dev, "sw_mute_weak: %d\n", radio->sw_mute_weak);
ret = of_property_read_u32(dnode, "without_elna", &radio->without_elna);
if (ret)
radio->without_elna = 0;
dev_info(radio->dev, "without eLNA: %d\n", radio->without_elna);
ret = of_property_read_u16(dnode, "rssi_adjust", &radio->rssi_adjust);
if (ret)
radio->rssi_adjust= 0;
dev_info(radio->dev, "rssi adjust: %d\n", radio->rssi_adjust);
wake_lock_init(&radio->wakelock, WAKE_LOCK_SUSPEND, "fm_wake");
wake_lock_init(&radio->rdswakelock, WAKE_LOCK_SUSPEND, "fm_rdswake");
dev_info(&pdev->dev, "end FM probe.\n");
return 0;
exit:
v4l2_ctrl_handler_free(radio->videodev.ctrl_handler);
alloc_err4:
v4l2_device_unregister(&radio->v4l2dev);
alloc_err3:
pm_runtime_disable(&pdev->dev);
pm_runtime_set_suspended(&pdev->dev);
fm_clk_disable(radio);
fm_clk_unprepare(radio);
alloc_err2:
kfree(radio->low);
alloc_err1:
kfree(radio->core);
alloc_err0:
kfree(radio);
return ret;
}
static int s610_radio_remove(struct platform_device *pdev)
{
struct s610_radio *radio = platform_get_drvdata(pdev);
if (radio) {
fm_clk_disable(radio);
fm_clk_unprepare(radio);
fm_clk_put(radio);
pm_runtime_disable(&pdev->dev);
pm_runtime_set_suspended(&pdev->dev);
v4l2_ctrl_handler_free(radio->videodev.ctrl_handler);
video_unregister_device(&radio->videodev);
v4l2_device_unregister(&radio->v4l2dev);
wake_lock_destroy(&radio->wakelock);
wake_lock_destroy(&radio->rdswakelock);
kfree(radio->vol_level_tmp);
kfree(radio->low);
kfree(radio->core);
kfree(radio);
}
return 0;
}
static int fm_clk_get(struct s610_radio *radio)
{
struct device *dev = radio->dev;
struct clk *clk;
int clk_count;
int ret, i;
clk_count = of_property_count_strings(dev->of_node, "clock-names");
if (IS_ERR_VALUE((unsigned long)clk_count)) {
dev_err(dev, "invalid clk list in %s node", dev->of_node->name);
return -EINVAL;
}
radio->clk_ids = (const char **)devm_kmalloc(dev,
(clk_count + 1) * sizeof(const char *),
GFP_KERNEL);
if (!radio->clk_ids) {
dev_err(dev, "failed to alloc for clock ids");
return -ENOMEM;
}
for (i = 0; i < clk_count; i++) {
ret = of_property_read_string_index(dev->of_node, "clock-names",
i, &radio->clk_ids[i]);
if (ret) {
dev_err(dev, "failed to read clocks name %d from %s node\n",
i, dev->of_node->name);
return ret;
}
}
radio->clk_ids[clk_count] = NULL;
radio->clocks = (struct clk **) devm_kmalloc(dev,
clk_count * sizeof(struct clk *), GFP_KERNEL);
if (!radio->clocks) {
dev_err(dev, "%s: couldn't alloc\n", __func__);
return -ENOMEM;
}
for (i = 0; radio->clk_ids[i] != NULL; i++) {
clk = devm_clk_get(dev, radio->clk_ids[i]);
if (IS_ERR_OR_NULL(clk))
goto err;
radio->clocks[i] = clk;
}
radio->clocks[i] = NULL;
return 0;
err:
dev_err(dev, "couldn't get %s clock\n", radio->clk_ids[i]);
return -EINVAL;
}
static int fm_clk_prepare(struct s610_radio *radio)
{
int i;
int ret;
for (i = 0; radio->clocks[i] != NULL; i++) {
ret = clk_prepare(radio->clocks[i]);
if (ret)
goto err;
}
return 0;
err:
dev_err(radio->dev, "couldn't prepare clock[%d]\n", i);
/* roll back */
for (i = i - 1; i >= 0; i--)
clk_unprepare(radio->clocks[i]);
return ret;
}
static int fm_clk_enable(struct s610_radio *radio)
{
int i;
int ret;
for (i = 0; radio->clocks[i] != NULL; i++) {
ret = clk_enable(radio->clocks[i]);
if (ret)
goto err;
dev_info(radio->dev, "clock %s: %lu\n", radio->clk_ids[i], clk_get_rate(radio->clocks[i]));
if (!strcmp(radio->clk_ids[i], "clk_aud_fm")) {
if (clk_get_rate(radio->clocks[i]) != 40000) {
ret = clk_set_rate(radio->clocks[i], 40000);
if (IS_ERR_VALUE((unsigned long)ret))
dev_info(radio->dev,
"setting clock clk_aud_fm to 40KHz is failed: %lu\n", ret);
dev_info(radio->dev, "FM clock clk_aud_fm: %lu\n",
clk_get_rate(radio->clocks[i]));
}
}
}
return 0;
err:
dev_err(radio->dev, "couldn't enable clock[%d]\n", i);
/* roll back */
for (i = i - 1; i >= 0; i--)
clk_disable(radio->clocks[i]);
return ret;
}
static void fm_clk_unprepare(struct s610_radio *radio)
{
int i;
for (i = 0; radio->clocks[i] != NULL; i++)
clk_unprepare(radio->clocks[i]);
}
static void fm_clk_disable(struct s610_radio *radio)
{
int i;
for (i = 0; radio->clocks[i] != NULL; i++)
clk_disable(radio->clocks[i]);
}
static void fm_clk_put(struct s610_radio *radio)
{
int i;
for (i = 0; radio->clocks[i] != NULL; i++)
clk_put(radio->clocks[i]);
}
#ifdef CONFIG_PM
static int fm_radio_runtime_suspend(struct device *dev)
{
struct s610_radio *radio = dev_get_drvdata(dev);
FUNC_ENTRY(radio);
fm_clk_disable(radio);
return 0;
}
static int fm_radio_runtime_resume(struct device *dev)
{
struct s610_radio *radio = dev_get_drvdata(dev);
FUNC_ENTRY(radio);
fm_clk_enable(radio);
return 0;
}
#endif
#ifdef CONFIG_PM_SLEEP
static int fm_radio_suspend(struct device *dev)
{
// struct s610_radio *radio = dev_get_drvdata(dev);
// FUNC_ENTRY(radio);
return 0;
}
static int fm_radio_resume(struct device *dev)
{
// struct s610_radio *radio = dev_get_drvdata(dev);
// FUNC_ENTRY(radio);
return 0;
}
#endif /* CONFIG_PM_SLEEP */
static const struct dev_pm_ops fm_radio_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(fm_radio_suspend, fm_radio_resume)
SET_RUNTIME_PM_OPS(fm_radio_runtime_suspend,
fm_radio_runtime_resume, NULL)
};
#define DEV_PM_OPS (&fm_radio_dev_pm_ops)
static struct platform_driver s610_radio_driver = {
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
.of_match_table = exynos_fm_of_match,
.pm = DEV_PM_OPS,
},
.probe = s610_radio_probe,
.remove = s610_radio_remove,
};
static int __init init_s610_radio(void)
{
platform_driver_register(&s610_radio_driver);
return 0;
}
static void __exit exit_s610_radio(void)
{
platform_driver_unregister(&s610_radio_driver);
}
late_initcall(init_s610_radio);
module_exit(exit_s610_radio);
MODULE_AUTHOR("Youngjoon Chung, <young11@samsung.com>");
MODULE_DESCRIPTION("Driver for S610 FM Radio in Exynos9610");
MODULE_LICENSE("GPL");