2160 lines
50 KiB
C
2160 lines
50 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Driver for the Texas Instruments WL1273 FM radio.
|
|
*
|
|
* Copyright (C) 2011 Nokia Corporation
|
|
* Author: Matti J. Aaltonen <matti.j.aaltonen@nokia.com>
|
|
*/
|
|
|
|
#include <linux/delay.h>
|
|
#include <linux/firmware.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/mfd/wl1273-core.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/module.h>
|
|
#include <media/v4l2-common.h>
|
|
#include <media/v4l2-ctrls.h>
|
|
#include <media/v4l2-device.h>
|
|
#include <media/v4l2-ioctl.h>
|
|
|
|
#define DRIVER_DESC "Wl1273 FM Radio"
|
|
|
|
#define WL1273_POWER_SET_OFF 0
|
|
#define WL1273_POWER_SET_FM BIT(0)
|
|
#define WL1273_POWER_SET_RDS BIT(1)
|
|
#define WL1273_POWER_SET_RETENTION BIT(4)
|
|
|
|
#define WL1273_PUPD_SET_OFF 0x00
|
|
#define WL1273_PUPD_SET_ON 0x01
|
|
#define WL1273_PUPD_SET_RETENTION 0x10
|
|
|
|
#define WL1273_FREQ(x) (x * 10000 / 625)
|
|
#define WL1273_INV_FREQ(x) (x * 625 / 10000)
|
|
|
|
/*
|
|
* static int radio_nr - The number of the radio device
|
|
*
|
|
* The default is 0.
|
|
*/
|
|
static int radio_nr;
|
|
module_param(radio_nr, int, 0);
|
|
MODULE_PARM_DESC(radio_nr, "The number of the radio device. Default = 0");
|
|
|
|
struct wl1273_device {
|
|
char *bus_type;
|
|
|
|
u8 forbidden;
|
|
unsigned int preemphasis;
|
|
unsigned int spacing;
|
|
unsigned int tx_power;
|
|
unsigned int rx_frequency;
|
|
unsigned int tx_frequency;
|
|
unsigned int rangelow;
|
|
unsigned int rangehigh;
|
|
unsigned int band;
|
|
bool stereo;
|
|
|
|
/* RDS */
|
|
unsigned int rds_on;
|
|
|
|
wait_queue_head_t read_queue;
|
|
struct mutex lock; /* for serializing fm radio operations */
|
|
struct completion busy;
|
|
|
|
unsigned char *buffer;
|
|
unsigned int buf_size;
|
|
unsigned int rd_index;
|
|
unsigned int wr_index;
|
|
|
|
/* Selected interrupts */
|
|
u16 irq_flags;
|
|
u16 irq_received;
|
|
|
|
struct v4l2_ctrl_handler ctrl_handler;
|
|
struct v4l2_device v4l2dev;
|
|
struct video_device videodev;
|
|
struct device *dev;
|
|
struct wl1273_core *core;
|
|
struct file *owner;
|
|
char *write_buf;
|
|
unsigned int rds_users;
|
|
};
|
|
|
|
#define WL1273_IRQ_MASK (WL1273_FR_EVENT | \
|
|
WL1273_POW_ENB_EVENT)
|
|
|
|
/*
|
|
* static unsigned int rds_buf - the number of RDS buffer blocks used.
|
|
*
|
|
* The default number is 100.
|
|
*/
|
|
static unsigned int rds_buf = 100;
|
|
module_param(rds_buf, uint, 0);
|
|
MODULE_PARM_DESC(rds_buf, "Number of RDS buffer entries. Default = 100");
|
|
|
|
static int wl1273_fm_write_fw(struct wl1273_core *core,
|
|
__u8 *fw, int len)
|
|
{
|
|
struct i2c_client *client = core->client;
|
|
struct i2c_msg msg;
|
|
int i, r = 0;
|
|
|
|
msg.addr = client->addr;
|
|
msg.flags = 0;
|
|
|
|
for (i = 0; i <= len; i++) {
|
|
msg.len = fw[0];
|
|
msg.buf = fw + 1;
|
|
|
|
fw += msg.len + 1;
|
|
dev_dbg(&client->dev, "%s:len[%d]: %d\n", __func__, i, msg.len);
|
|
|
|
r = i2c_transfer(client->adapter, &msg, 1);
|
|
if (r < 0 && i < len + 1)
|
|
break;
|
|
}
|
|
|
|
dev_dbg(&client->dev, "%s: i: %d\n", __func__, i);
|
|
dev_dbg(&client->dev, "%s: len + 1: %d\n", __func__, len + 1);
|
|
|
|
/* Last transfer always fails. */
|
|
if (i == len || r == 1)
|
|
r = 0;
|
|
|
|
return r;
|
|
}
|
|
|
|
#define WL1273_FIFO_HAS_DATA(status) (1 << 5 & status)
|
|
#define WL1273_RDS_CORRECTABLE_ERROR (1 << 3)
|
|
#define WL1273_RDS_UNCORRECTABLE_ERROR (1 << 4)
|
|
|
|
static int wl1273_fm_rds(struct wl1273_device *radio)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
struct i2c_client *client = core->client;
|
|
u16 val;
|
|
u8 b0 = WL1273_RDS_DATA_GET, status;
|
|
struct v4l2_rds_data rds = { 0, 0, 0 };
|
|
struct i2c_msg msg[] = {
|
|
{
|
|
.addr = client->addr,
|
|
.flags = 0,
|
|
.buf = &b0,
|
|
.len = 1,
|
|
},
|
|
{
|
|
.addr = client->addr,
|
|
.flags = I2C_M_RD,
|
|
.buf = (u8 *) &rds,
|
|
.len = sizeof(rds),
|
|
}
|
|
};
|
|
int r;
|
|
|
|
if (core->mode != WL1273_MODE_RX)
|
|
return 0;
|
|
|
|
r = core->read(core, WL1273_RDS_SYNC_GET, &val);
|
|
if (r)
|
|
return r;
|
|
|
|
if ((val & 0x01) == 0) {
|
|
/* RDS decoder not synchronized */
|
|
return -EAGAIN;
|
|
}
|
|
|
|
/* copy all four RDS blocks to internal buffer */
|
|
do {
|
|
r = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
|
|
if (r != ARRAY_SIZE(msg)) {
|
|
dev_err(radio->dev, WL1273_FM_DRIVER_NAME
|
|
": %s: read_rds error r == %i)\n",
|
|
__func__, r);
|
|
}
|
|
|
|
status = rds.block;
|
|
|
|
if (!WL1273_FIFO_HAS_DATA(status))
|
|
break;
|
|
|
|
/* copy bits 0-2 (the block ID) to bits 3-5 */
|
|
rds.block = V4L2_RDS_BLOCK_MSK & status;
|
|
rds.block |= rds.block << 3;
|
|
|
|
/* copy the error bits to standard positions */
|
|
if (WL1273_RDS_UNCORRECTABLE_ERROR & status) {
|
|
rds.block |= V4L2_RDS_BLOCK_ERROR;
|
|
rds.block &= ~V4L2_RDS_BLOCK_CORRECTED;
|
|
} else if (WL1273_RDS_CORRECTABLE_ERROR & status) {
|
|
rds.block &= ~V4L2_RDS_BLOCK_ERROR;
|
|
rds.block |= V4L2_RDS_BLOCK_CORRECTED;
|
|
}
|
|
|
|
/* copy RDS block to internal buffer */
|
|
memcpy(&radio->buffer[radio->wr_index], &rds, RDS_BLOCK_SIZE);
|
|
radio->wr_index += 3;
|
|
|
|
/* wrap write pointer */
|
|
if (radio->wr_index >= radio->buf_size)
|
|
radio->wr_index = 0;
|
|
|
|
/* check for overflow & start over */
|
|
if (radio->wr_index == radio->rd_index) {
|
|
dev_dbg(radio->dev, "RDS OVERFLOW");
|
|
|
|
radio->rd_index = 0;
|
|
radio->wr_index = 0;
|
|
break;
|
|
}
|
|
} while (WL1273_FIFO_HAS_DATA(status));
|
|
|
|
/* wake up read queue */
|
|
if (radio->wr_index != radio->rd_index)
|
|
wake_up_interruptible(&radio->read_queue);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id)
|
|
{
|
|
struct wl1273_device *radio = dev_id;
|
|
struct wl1273_core *core = radio->core;
|
|
u16 flags;
|
|
int r;
|
|
|
|
r = core->read(core, WL1273_FLAG_GET, &flags);
|
|
if (r)
|
|
goto out;
|
|
|
|
if (flags & WL1273_BL_EVENT) {
|
|
radio->irq_received = flags;
|
|
dev_dbg(radio->dev, "IRQ: BL\n");
|
|
}
|
|
|
|
if (flags & WL1273_RDS_EVENT) {
|
|
msleep(200);
|
|
|
|
wl1273_fm_rds(radio);
|
|
}
|
|
|
|
if (flags & WL1273_BBLK_EVENT)
|
|
dev_dbg(radio->dev, "IRQ: BBLK\n");
|
|
|
|
if (flags & WL1273_LSYNC_EVENT)
|
|
dev_dbg(radio->dev, "IRQ: LSYNC\n");
|
|
|
|
if (flags & WL1273_LEV_EVENT) {
|
|
u16 level;
|
|
|
|
r = core->read(core, WL1273_RSSI_LVL_GET, &level);
|
|
if (r)
|
|
goto out;
|
|
|
|
if (level > 14)
|
|
dev_dbg(radio->dev, "IRQ: LEV: 0x%x04\n", level);
|
|
}
|
|
|
|
if (flags & WL1273_IFFR_EVENT)
|
|
dev_dbg(radio->dev, "IRQ: IFFR\n");
|
|
|
|
if (flags & WL1273_PI_EVENT)
|
|
dev_dbg(radio->dev, "IRQ: PI\n");
|
|
|
|
if (flags & WL1273_PD_EVENT)
|
|
dev_dbg(radio->dev, "IRQ: PD\n");
|
|
|
|
if (flags & WL1273_STIC_EVENT)
|
|
dev_dbg(radio->dev, "IRQ: STIC\n");
|
|
|
|
if (flags & WL1273_MAL_EVENT)
|
|
dev_dbg(radio->dev, "IRQ: MAL\n");
|
|
|
|
if (flags & WL1273_POW_ENB_EVENT) {
|
|
complete(&radio->busy);
|
|
dev_dbg(radio->dev, "NOT BUSY\n");
|
|
dev_dbg(radio->dev, "IRQ: POW_ENB\n");
|
|
}
|
|
|
|
if (flags & WL1273_SCAN_OVER_EVENT)
|
|
dev_dbg(radio->dev, "IRQ: SCAN_OVER\n");
|
|
|
|
if (flags & WL1273_ERROR_EVENT)
|
|
dev_dbg(radio->dev, "IRQ: ERROR\n");
|
|
|
|
if (flags & WL1273_FR_EVENT) {
|
|
u16 freq;
|
|
|
|
dev_dbg(radio->dev, "IRQ: FR:\n");
|
|
|
|
if (core->mode == WL1273_MODE_RX) {
|
|
r = core->write(core, WL1273_TUNER_MODE_SET,
|
|
TUNER_MODE_STOP_SEARCH);
|
|
if (r) {
|
|
dev_err(radio->dev,
|
|
"%s: TUNER_MODE_SET fails: %d\n",
|
|
__func__, r);
|
|
goto out;
|
|
}
|
|
|
|
r = core->read(core, WL1273_FREQ_SET, &freq);
|
|
if (r)
|
|
goto out;
|
|
|
|
if (radio->band == WL1273_BAND_JAPAN)
|
|
radio->rx_frequency = WL1273_BAND_JAPAN_LOW +
|
|
freq * 50;
|
|
else
|
|
radio->rx_frequency = WL1273_BAND_OTHER_LOW +
|
|
freq * 50;
|
|
/*
|
|
* The driver works better with this msleep,
|
|
* the documentation doesn't mention it.
|
|
*/
|
|
usleep_range(10000, 15000);
|
|
|
|
dev_dbg(radio->dev, "%dkHz\n", radio->rx_frequency);
|
|
|
|
} else {
|
|
r = core->read(core, WL1273_CHANL_SET, &freq);
|
|
if (r)
|
|
goto out;
|
|
|
|
dev_dbg(radio->dev, "%dkHz\n", freq);
|
|
}
|
|
dev_dbg(radio->dev, "%s: NOT BUSY\n", __func__);
|
|
}
|
|
|
|
out:
|
|
core->write(core, WL1273_INT_MASK_SET, radio->irq_flags);
|
|
complete(&radio->busy);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int wl1273_fm_set_tx_freq(struct wl1273_device *radio, unsigned int freq)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
int r = 0;
|
|
unsigned long t;
|
|
|
|
if (freq < WL1273_BAND_TX_LOW) {
|
|
dev_err(radio->dev,
|
|
"Frequency out of range: %d < %d\n", freq,
|
|
WL1273_BAND_TX_LOW);
|
|
return -ERANGE;
|
|
}
|
|
|
|
if (freq > WL1273_BAND_TX_HIGH) {
|
|
dev_err(radio->dev,
|
|
"Frequency out of range: %d > %d\n", freq,
|
|
WL1273_BAND_TX_HIGH);
|
|
return -ERANGE;
|
|
}
|
|
|
|
/*
|
|
* The driver works better with this sleep,
|
|
* the documentation doesn't mention it.
|
|
*/
|
|
usleep_range(5000, 10000);
|
|
|
|
dev_dbg(radio->dev, "%s: freq: %d kHz\n", __func__, freq);
|
|
|
|
/* Set the current tx channel */
|
|
r = core->write(core, WL1273_CHANL_SET, freq / 10);
|
|
if (r)
|
|
return r;
|
|
|
|
reinit_completion(&radio->busy);
|
|
|
|
/* wait for the FR IRQ */
|
|
t = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000));
|
|
if (!t)
|
|
return -ETIMEDOUT;
|
|
|
|
dev_dbg(radio->dev, "WL1273_CHANL_SET: %lu\n", t);
|
|
|
|
/* Enable the output power */
|
|
r = core->write(core, WL1273_POWER_ENB_SET, 1);
|
|
if (r)
|
|
return r;
|
|
|
|
reinit_completion(&radio->busy);
|
|
|
|
/* wait for the POWER_ENB IRQ */
|
|
t = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000));
|
|
if (!t)
|
|
return -ETIMEDOUT;
|
|
|
|
radio->tx_frequency = freq;
|
|
dev_dbg(radio->dev, "WL1273_POWER_ENB_SET: %lu\n", t);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl1273_fm_set_rx_freq(struct wl1273_device *radio, unsigned int freq)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
int r, f;
|
|
unsigned long t;
|
|
|
|
if (freq < radio->rangelow) {
|
|
dev_err(radio->dev,
|
|
"Frequency out of range: %d < %d\n", freq,
|
|
radio->rangelow);
|
|
r = -ERANGE;
|
|
goto err;
|
|
}
|
|
|
|
if (freq > radio->rangehigh) {
|
|
dev_err(radio->dev,
|
|
"Frequency out of range: %d > %d\n", freq,
|
|
radio->rangehigh);
|
|
r = -ERANGE;
|
|
goto err;
|
|
}
|
|
|
|
dev_dbg(radio->dev, "%s: %dkHz\n", __func__, freq);
|
|
|
|
core->write(core, WL1273_INT_MASK_SET, radio->irq_flags);
|
|
|
|
if (radio->band == WL1273_BAND_JAPAN)
|
|
f = (freq - WL1273_BAND_JAPAN_LOW) / 50;
|
|
else
|
|
f = (freq - WL1273_BAND_OTHER_LOW) / 50;
|
|
|
|
r = core->write(core, WL1273_FREQ_SET, f);
|
|
if (r) {
|
|
dev_err(radio->dev, "FREQ_SET fails\n");
|
|
goto err;
|
|
}
|
|
|
|
r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_PRESET);
|
|
if (r) {
|
|
dev_err(radio->dev, "TUNER_MODE_SET fails\n");
|
|
goto err;
|
|
}
|
|
|
|
reinit_completion(&radio->busy);
|
|
|
|
t = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000));
|
|
if (!t) {
|
|
dev_err(radio->dev, "%s: TIMEOUT\n", __func__);
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
radio->rd_index = 0;
|
|
radio->wr_index = 0;
|
|
radio->rx_frequency = freq;
|
|
return 0;
|
|
err:
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_get_freq(struct wl1273_device *radio)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
unsigned int freq;
|
|
u16 f;
|
|
int r;
|
|
|
|
if (core->mode == WL1273_MODE_RX) {
|
|
r = core->read(core, WL1273_FREQ_SET, &f);
|
|
if (r)
|
|
return r;
|
|
|
|
dev_dbg(radio->dev, "Freq get: 0x%04x\n", f);
|
|
if (radio->band == WL1273_BAND_JAPAN)
|
|
freq = WL1273_BAND_JAPAN_LOW + 50 * f;
|
|
else
|
|
freq = WL1273_BAND_OTHER_LOW + 50 * f;
|
|
} else {
|
|
r = core->read(core, WL1273_CHANL_SET, &f);
|
|
if (r)
|
|
return r;
|
|
|
|
freq = f * 10;
|
|
}
|
|
|
|
return freq;
|
|
}
|
|
|
|
/**
|
|
* wl1273_fm_upload_firmware_patch() - Upload the firmware.
|
|
* @radio: A pointer to the device struct.
|
|
*
|
|
* The firmware file consists of arrays of bytes where the first byte
|
|
* gives the array length. The first byte in the file gives the
|
|
* number of these arrays.
|
|
*/
|
|
static int wl1273_fm_upload_firmware_patch(struct wl1273_device *radio)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
unsigned int packet_num;
|
|
const struct firmware *fw_p;
|
|
const char *fw_name = "radio-wl1273-fw.bin";
|
|
struct device *dev = radio->dev;
|
|
__u8 *ptr;
|
|
int r;
|
|
|
|
dev_dbg(dev, "%s:\n", __func__);
|
|
|
|
/*
|
|
* Uploading the firmware patch is not always necessary,
|
|
* so we only print an info message.
|
|
*/
|
|
if (request_firmware(&fw_p, fw_name, dev)) {
|
|
dev_info(dev, "%s - %s not found\n", __func__, fw_name);
|
|
|
|
return 0;
|
|
}
|
|
|
|
ptr = (__u8 *) fw_p->data;
|
|
packet_num = ptr[0];
|
|
dev_dbg(dev, "%s: packets: %d\n", __func__, packet_num);
|
|
|
|
r = wl1273_fm_write_fw(core, ptr + 1, packet_num);
|
|
if (r) {
|
|
dev_err(dev, "FW upload error: %d\n", r);
|
|
goto out;
|
|
}
|
|
|
|
/* ignore possible error here */
|
|
core->write(core, WL1273_RESET, 0);
|
|
|
|
dev_dbg(dev, "%s - download OK, r: %d\n", __func__, r);
|
|
out:
|
|
release_firmware(fw_p);
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_stop(struct wl1273_device *radio)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
|
|
if (core->mode == WL1273_MODE_RX) {
|
|
int r = core->write(core, WL1273_POWER_SET,
|
|
WL1273_POWER_SET_OFF);
|
|
if (r)
|
|
dev_err(radio->dev, "%s: POWER_SET fails: %d\n",
|
|
__func__, r);
|
|
} else if (core->mode == WL1273_MODE_TX) {
|
|
int r = core->write(core, WL1273_PUPD_SET,
|
|
WL1273_PUPD_SET_OFF);
|
|
if (r)
|
|
dev_err(radio->dev,
|
|
"%s: PUPD_SET fails: %d\n", __func__, r);
|
|
}
|
|
|
|
if (core->pdata->disable) {
|
|
core->pdata->disable();
|
|
dev_dbg(radio->dev, "Back to reset\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl1273_fm_start(struct wl1273_device *radio, int new_mode)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
struct wl1273_fm_platform_data *pdata = core->pdata;
|
|
struct device *dev = radio->dev;
|
|
int r = -EINVAL;
|
|
|
|
if (pdata->enable && core->mode == WL1273_MODE_OFF) {
|
|
dev_dbg(radio->dev, "Out of reset\n");
|
|
|
|
pdata->enable();
|
|
msleep(250);
|
|
}
|
|
|
|
if (new_mode == WL1273_MODE_RX) {
|
|
u16 val = WL1273_POWER_SET_FM;
|
|
|
|
if (radio->rds_on)
|
|
val |= WL1273_POWER_SET_RDS;
|
|
|
|
/* If this fails try again */
|
|
r = core->write(core, WL1273_POWER_SET, val);
|
|
if (r) {
|
|
msleep(100);
|
|
|
|
r = core->write(core, WL1273_POWER_SET, val);
|
|
if (r) {
|
|
dev_err(dev, "%s: POWER_SET fails\n", __func__);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
/* rds buffer configuration */
|
|
radio->wr_index = 0;
|
|
radio->rd_index = 0;
|
|
|
|
} else if (new_mode == WL1273_MODE_TX) {
|
|
/* If this fails try again once */
|
|
r = core->write(core, WL1273_PUPD_SET, WL1273_PUPD_SET_ON);
|
|
if (r) {
|
|
msleep(100);
|
|
r = core->write(core, WL1273_PUPD_SET,
|
|
WL1273_PUPD_SET_ON);
|
|
if (r) {
|
|
dev_err(dev, "%s: PUPD_SET fails\n", __func__);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
if (radio->rds_on) {
|
|
r = core->write(core, WL1273_RDS_DATA_ENB, 1);
|
|
if (r) {
|
|
dev_err(dev, "%s: RDS_DATA_ENB ON fails\n",
|
|
__func__);
|
|
goto fail;
|
|
}
|
|
} else {
|
|
r = core->write(core, WL1273_RDS_DATA_ENB, 0);
|
|
if (r) {
|
|
dev_err(dev, "%s: RDS_DATA_ENB OFF fails\n",
|
|
__func__);
|
|
goto fail;
|
|
}
|
|
}
|
|
} else {
|
|
dev_warn(dev, "%s: Illegal mode.\n", __func__);
|
|
}
|
|
|
|
if (core->mode == WL1273_MODE_OFF) {
|
|
r = wl1273_fm_upload_firmware_patch(radio);
|
|
if (r)
|
|
dev_warn(dev, "Firmware upload failed.\n");
|
|
|
|
/*
|
|
* Sometimes the chip is in a wrong power state at this point.
|
|
* So we set the power once again.
|
|
*/
|
|
if (new_mode == WL1273_MODE_RX) {
|
|
u16 val = WL1273_POWER_SET_FM;
|
|
|
|
if (radio->rds_on)
|
|
val |= WL1273_POWER_SET_RDS;
|
|
|
|
r = core->write(core, WL1273_POWER_SET, val);
|
|
if (r) {
|
|
dev_err(dev, "%s: POWER_SET fails\n", __func__);
|
|
goto fail;
|
|
}
|
|
} else if (new_mode == WL1273_MODE_TX) {
|
|
r = core->write(core, WL1273_PUPD_SET,
|
|
WL1273_PUPD_SET_ON);
|
|
if (r) {
|
|
dev_err(dev, "%s: PUPD_SET fails\n", __func__);
|
|
goto fail;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
fail:
|
|
if (pdata->disable)
|
|
pdata->disable();
|
|
|
|
dev_dbg(dev, "%s: return: %d\n", __func__, r);
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_suspend(struct wl1273_device *radio)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
int r;
|
|
|
|
/* Cannot go from OFF to SUSPENDED */
|
|
if (core->mode == WL1273_MODE_RX)
|
|
r = core->write(core, WL1273_POWER_SET,
|
|
WL1273_POWER_SET_RETENTION);
|
|
else if (core->mode == WL1273_MODE_TX)
|
|
r = core->write(core, WL1273_PUPD_SET,
|
|
WL1273_PUPD_SET_RETENTION);
|
|
else
|
|
r = -EINVAL;
|
|
|
|
if (r) {
|
|
dev_err(radio->dev, "%s: POWER_SET fails: %d\n", __func__, r);
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_set_mode(struct wl1273_device *radio, int mode)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
struct device *dev = radio->dev;
|
|
int old_mode;
|
|
int r;
|
|
|
|
dev_dbg(dev, "%s\n", __func__);
|
|
dev_dbg(dev, "Forbidden modes: 0x%02x\n", radio->forbidden);
|
|
|
|
old_mode = core->mode;
|
|
if (mode & radio->forbidden) {
|
|
r = -EPERM;
|
|
goto out;
|
|
}
|
|
|
|
switch (mode) {
|
|
case WL1273_MODE_RX:
|
|
case WL1273_MODE_TX:
|
|
r = wl1273_fm_start(radio, mode);
|
|
if (r) {
|
|
dev_err(dev, "%s: Cannot start.\n", __func__);
|
|
wl1273_fm_stop(radio);
|
|
goto out;
|
|
}
|
|
|
|
core->mode = mode;
|
|
r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags);
|
|
if (r) {
|
|
dev_err(dev, "INT_MASK_SET fails.\n");
|
|
goto out;
|
|
}
|
|
|
|
/* remember previous settings */
|
|
if (mode == WL1273_MODE_RX) {
|
|
r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency);
|
|
if (r) {
|
|
dev_err(dev, "set freq fails: %d.\n", r);
|
|
goto out;
|
|
}
|
|
|
|
r = core->set_volume(core, core->volume);
|
|
if (r) {
|
|
dev_err(dev, "set volume fails: %d.\n", r);
|
|
goto out;
|
|
}
|
|
|
|
dev_dbg(dev, "%s: Set vol: %d.\n", __func__,
|
|
core->volume);
|
|
} else {
|
|
r = wl1273_fm_set_tx_freq(radio, radio->tx_frequency);
|
|
if (r) {
|
|
dev_err(dev, "set freq fails: %d.\n", r);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
dev_dbg(radio->dev, "%s: Set audio mode.\n", __func__);
|
|
|
|
r = core->set_audio(core, core->audio_mode);
|
|
if (r)
|
|
dev_err(dev, "Cannot set audio mode.\n");
|
|
break;
|
|
|
|
case WL1273_MODE_OFF:
|
|
r = wl1273_fm_stop(radio);
|
|
if (r)
|
|
dev_err(dev, "%s: Off fails: %d\n", __func__, r);
|
|
else
|
|
core->mode = WL1273_MODE_OFF;
|
|
|
|
break;
|
|
|
|
case WL1273_MODE_SUSPENDED:
|
|
r = wl1273_fm_suspend(radio);
|
|
if (r)
|
|
dev_err(dev, "%s: Suspend fails: %d\n", __func__, r);
|
|
else
|
|
core->mode = WL1273_MODE_SUSPENDED;
|
|
|
|
break;
|
|
|
|
default:
|
|
dev_err(dev, "%s: Unknown mode: %d\n", __func__, mode);
|
|
r = -EINVAL;
|
|
break;
|
|
}
|
|
out:
|
|
if (r)
|
|
core->mode = old_mode;
|
|
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_set_seek(struct wl1273_device *radio,
|
|
unsigned int wrap_around,
|
|
unsigned int seek_upward,
|
|
int level)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
int r = 0;
|
|
unsigned int dir = (seek_upward == 0) ? 0 : 1;
|
|
unsigned int f;
|
|
|
|
f = radio->rx_frequency;
|
|
dev_dbg(radio->dev, "rx_frequency: %d\n", f);
|
|
|
|
if (dir && f + radio->spacing <= radio->rangehigh)
|
|
r = wl1273_fm_set_rx_freq(radio, f + radio->spacing);
|
|
else if (dir && wrap_around)
|
|
r = wl1273_fm_set_rx_freq(radio, radio->rangelow);
|
|
else if (f - radio->spacing >= radio->rangelow)
|
|
r = wl1273_fm_set_rx_freq(radio, f - radio->spacing);
|
|
else if (wrap_around)
|
|
r = wl1273_fm_set_rx_freq(radio, radio->rangehigh);
|
|
|
|
if (r)
|
|
goto out;
|
|
|
|
if (level < SCHAR_MIN || level > SCHAR_MAX)
|
|
return -EINVAL;
|
|
|
|
reinit_completion(&radio->busy);
|
|
dev_dbg(radio->dev, "%s: BUSY\n", __func__);
|
|
|
|
r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags);
|
|
if (r)
|
|
goto out;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
r = core->write(core, WL1273_SEARCH_LVL_SET, level);
|
|
if (r)
|
|
goto out;
|
|
|
|
r = core->write(core, WL1273_SEARCH_DIR_SET, dir);
|
|
if (r)
|
|
goto out;
|
|
|
|
r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK);
|
|
if (r)
|
|
goto out;
|
|
|
|
/* wait for the FR IRQ */
|
|
wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000));
|
|
if (!(radio->irq_received & WL1273_BL_EVENT)) {
|
|
r = -ETIMEDOUT;
|
|
goto out;
|
|
}
|
|
|
|
radio->irq_received &= ~WL1273_BL_EVENT;
|
|
|
|
if (!wrap_around)
|
|
goto out;
|
|
|
|
/* Wrap around */
|
|
dev_dbg(radio->dev, "Wrap around in HW seek.\n");
|
|
|
|
if (seek_upward)
|
|
f = radio->rangelow;
|
|
else
|
|
f = radio->rangehigh;
|
|
|
|
r = wl1273_fm_set_rx_freq(radio, f);
|
|
if (r)
|
|
goto out;
|
|
|
|
reinit_completion(&radio->busy);
|
|
dev_dbg(radio->dev, "%s: BUSY\n", __func__);
|
|
|
|
r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK);
|
|
if (r)
|
|
goto out;
|
|
|
|
/* wait for the FR IRQ */
|
|
if (!wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000)))
|
|
r = -ETIMEDOUT;
|
|
out:
|
|
dev_dbg(radio->dev, "%s: Err: %d\n", __func__, r);
|
|
return r;
|
|
}
|
|
|
|
/**
|
|
* wl1273_fm_get_tx_ctune() - Get the TX tuning capacitor value.
|
|
* @radio: A pointer to the device struct.
|
|
*/
|
|
static unsigned int wl1273_fm_get_tx_ctune(struct wl1273_device *radio)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
struct device *dev = radio->dev;
|
|
u16 val;
|
|
int r;
|
|
|
|
if (core->mode == WL1273_MODE_OFF ||
|
|
core->mode == WL1273_MODE_SUSPENDED)
|
|
return -EPERM;
|
|
|
|
r = core->read(core, WL1273_READ_FMANT_TUNE_VALUE, &val);
|
|
if (r) {
|
|
dev_err(dev, "%s: read error: %d\n", __func__, r);
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
return val;
|
|
}
|
|
|
|
/**
|
|
* wl1273_fm_set_preemphasis() - Set the TX pre-emphasis value.
|
|
* @radio: A pointer to the device struct.
|
|
* @preemphasis: The new pre-amphasis value.
|
|
*
|
|
* Possible pre-emphasis values are: V4L2_PREEMPHASIS_DISABLED,
|
|
* V4L2_PREEMPHASIS_50_uS and V4L2_PREEMPHASIS_75_uS.
|
|
*/
|
|
static int wl1273_fm_set_preemphasis(struct wl1273_device *radio,
|
|
unsigned int preemphasis)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
int r;
|
|
u16 em;
|
|
|
|
if (core->mode == WL1273_MODE_OFF ||
|
|
core->mode == WL1273_MODE_SUSPENDED)
|
|
return -EPERM;
|
|
|
|
mutex_lock(&core->lock);
|
|
|
|
switch (preemphasis) {
|
|
case V4L2_PREEMPHASIS_DISABLED:
|
|
em = 1;
|
|
break;
|
|
case V4L2_PREEMPHASIS_50_uS:
|
|
em = 0;
|
|
break;
|
|
case V4L2_PREEMPHASIS_75_uS:
|
|
em = 2;
|
|
break;
|
|
default:
|
|
r = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
r = core->write(core, WL1273_PREMPH_SET, em);
|
|
if (r)
|
|
goto out;
|
|
|
|
radio->preemphasis = preemphasis;
|
|
|
|
out:
|
|
mutex_unlock(&core->lock);
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_rds_on(struct wl1273_device *radio)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
int r;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
if (radio->rds_on)
|
|
return 0;
|
|
|
|
r = core->write(core, WL1273_POWER_SET,
|
|
WL1273_POWER_SET_FM | WL1273_POWER_SET_RDS);
|
|
if (r)
|
|
goto out;
|
|
|
|
r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency);
|
|
if (r)
|
|
dev_err(radio->dev, "set freq fails: %d.\n", r);
|
|
out:
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_rds_off(struct wl1273_device *radio)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
int r;
|
|
|
|
if (!radio->rds_on)
|
|
return 0;
|
|
|
|
radio->irq_flags &= ~WL1273_RDS_EVENT;
|
|
|
|
r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags);
|
|
if (r)
|
|
goto out;
|
|
|
|
/* Service pending read */
|
|
wake_up_interruptible(&radio->read_queue);
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
r = core->write(core, WL1273_POWER_SET, WL1273_POWER_SET_FM);
|
|
if (r)
|
|
goto out;
|
|
|
|
r = wl1273_fm_set_rx_freq(radio, radio->rx_frequency);
|
|
if (r)
|
|
dev_err(radio->dev, "set freq fails: %d.\n", r);
|
|
out:
|
|
dev_dbg(radio->dev, "%s: exiting...\n", __func__);
|
|
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_set_rds(struct wl1273_device *radio, unsigned int new_mode)
|
|
{
|
|
int r = 0;
|
|
struct wl1273_core *core = radio->core;
|
|
|
|
if (core->mode == WL1273_MODE_OFF ||
|
|
core->mode == WL1273_MODE_SUSPENDED)
|
|
return -EPERM;
|
|
|
|
if (new_mode == WL1273_RDS_RESET) {
|
|
r = core->write(core, WL1273_RDS_CNTRL_SET, 1);
|
|
return r;
|
|
}
|
|
|
|
if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_OFF) {
|
|
r = core->write(core, WL1273_RDS_DATA_ENB, 0);
|
|
} else if (core->mode == WL1273_MODE_TX && new_mode == WL1273_RDS_ON) {
|
|
r = core->write(core, WL1273_RDS_DATA_ENB, 1);
|
|
} else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_OFF) {
|
|
r = wl1273_fm_rds_off(radio);
|
|
} else if (core->mode == WL1273_MODE_RX && new_mode == WL1273_RDS_ON) {
|
|
r = wl1273_fm_rds_on(radio);
|
|
} else {
|
|
dev_err(radio->dev, "%s: Unknown mode: %d\n",
|
|
__func__, new_mode);
|
|
r = -EINVAL;
|
|
}
|
|
|
|
if (!r)
|
|
radio->rds_on = (new_mode == WL1273_RDS_ON) ? true : false;
|
|
|
|
return r;
|
|
}
|
|
|
|
static ssize_t wl1273_fm_fops_write(struct file *file, const char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
struct wl1273_core *core = radio->core;
|
|
u16 val;
|
|
int r;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
if (core->mode != WL1273_MODE_TX)
|
|
return count;
|
|
|
|
if (radio->rds_users == 0) {
|
|
dev_warn(radio->dev, "%s: RDS not on.\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
if (mutex_lock_interruptible(&core->lock))
|
|
return -EINTR;
|
|
/*
|
|
* Multiple processes can open the device, but only
|
|
* one gets to write to it.
|
|
*/
|
|
if (radio->owner && radio->owner != file) {
|
|
r = -EBUSY;
|
|
goto out;
|
|
}
|
|
radio->owner = file;
|
|
|
|
/* Manual Mode */
|
|
if (count > 255)
|
|
val = 255;
|
|
else
|
|
val = count;
|
|
|
|
core->write(core, WL1273_RDS_CONFIG_DATA_SET, val);
|
|
|
|
if (copy_from_user(radio->write_buf + 1, buf, val)) {
|
|
r = -EFAULT;
|
|
goto out;
|
|
}
|
|
|
|
dev_dbg(radio->dev, "Count: %d\n", val);
|
|
dev_dbg(radio->dev, "From user: \"%s\"\n", radio->write_buf);
|
|
|
|
radio->write_buf[0] = WL1273_RDS_DATA_SET;
|
|
core->write_data(core, radio->write_buf, val + 1);
|
|
|
|
r = val;
|
|
out:
|
|
mutex_unlock(&core->lock);
|
|
|
|
return r;
|
|
}
|
|
|
|
static __poll_t wl1273_fm_fops_poll(struct file *file,
|
|
struct poll_table_struct *pts)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
struct wl1273_core *core = radio->core;
|
|
|
|
if (radio->owner && radio->owner != file)
|
|
return EPOLLERR;
|
|
|
|
radio->owner = file;
|
|
|
|
if (core->mode == WL1273_MODE_RX) {
|
|
poll_wait(file, &radio->read_queue, pts);
|
|
|
|
if (radio->rd_index != radio->wr_index)
|
|
return EPOLLIN | EPOLLRDNORM;
|
|
|
|
} else if (core->mode == WL1273_MODE_TX) {
|
|
return EPOLLOUT | EPOLLWRNORM;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl1273_fm_fops_open(struct file *file)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
struct wl1273_core *core = radio->core;
|
|
int r = 0;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
if (core->mode == WL1273_MODE_RX && radio->rds_on &&
|
|
!radio->rds_users) {
|
|
dev_dbg(radio->dev, "%s: Mode: %d\n", __func__, core->mode);
|
|
|
|
if (mutex_lock_interruptible(&core->lock))
|
|
return -EINTR;
|
|
|
|
radio->irq_flags |= WL1273_RDS_EVENT;
|
|
|
|
r = core->write(core, WL1273_INT_MASK_SET,
|
|
radio->irq_flags);
|
|
if (r) {
|
|
mutex_unlock(&core->lock);
|
|
goto out;
|
|
}
|
|
|
|
radio->rds_users++;
|
|
|
|
mutex_unlock(&core->lock);
|
|
}
|
|
out:
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_fops_release(struct file *file)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
struct wl1273_core *core = radio->core;
|
|
int r = 0;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
if (radio->rds_users > 0) {
|
|
radio->rds_users--;
|
|
if (radio->rds_users == 0) {
|
|
mutex_lock(&core->lock);
|
|
|
|
radio->irq_flags &= ~WL1273_RDS_EVENT;
|
|
|
|
if (core->mode == WL1273_MODE_RX) {
|
|
r = core->write(core,
|
|
WL1273_INT_MASK_SET,
|
|
radio->irq_flags);
|
|
if (r) {
|
|
mutex_unlock(&core->lock);
|
|
goto out;
|
|
}
|
|
}
|
|
mutex_unlock(&core->lock);
|
|
}
|
|
}
|
|
|
|
if (file == radio->owner)
|
|
radio->owner = NULL;
|
|
out:
|
|
return r;
|
|
}
|
|
|
|
static ssize_t wl1273_fm_fops_read(struct file *file, char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
int r = 0;
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
struct wl1273_core *core = radio->core;
|
|
unsigned int block_count = 0;
|
|
u16 val;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
if (core->mode != WL1273_MODE_RX)
|
|
return 0;
|
|
|
|
if (radio->rds_users == 0) {
|
|
dev_warn(radio->dev, "%s: RDS not on.\n", __func__);
|
|
return 0;
|
|
}
|
|
|
|
if (mutex_lock_interruptible(&core->lock))
|
|
return -EINTR;
|
|
|
|
/*
|
|
* Multiple processes can open the device, but only
|
|
* one at a time gets read access.
|
|
*/
|
|
if (radio->owner && radio->owner != file) {
|
|
r = -EBUSY;
|
|
goto out;
|
|
}
|
|
radio->owner = file;
|
|
|
|
r = core->read(core, WL1273_RDS_SYNC_GET, &val);
|
|
if (r) {
|
|
dev_err(radio->dev, "%s: Get RDS_SYNC fails.\n", __func__);
|
|
goto out;
|
|
} else if (val == 0) {
|
|
dev_info(radio->dev, "RDS_SYNC: Not synchronized\n");
|
|
r = -ENODATA;
|
|
goto out;
|
|
}
|
|
|
|
/* block if no new data available */
|
|
while (radio->wr_index == radio->rd_index) {
|
|
if (file->f_flags & O_NONBLOCK) {
|
|
r = -EWOULDBLOCK;
|
|
goto out;
|
|
}
|
|
|
|
dev_dbg(radio->dev, "%s: Wait for RDS data.\n", __func__);
|
|
if (wait_event_interruptible(radio->read_queue,
|
|
radio->wr_index !=
|
|
radio->rd_index) < 0) {
|
|
r = -EINTR;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/* calculate block count from byte count */
|
|
count /= RDS_BLOCK_SIZE;
|
|
|
|
/* copy RDS blocks from the internal buffer and to user buffer */
|
|
while (block_count < count) {
|
|
if (radio->rd_index == radio->wr_index)
|
|
break;
|
|
|
|
/* always transfer complete RDS blocks */
|
|
if (copy_to_user(buf, &radio->buffer[radio->rd_index],
|
|
RDS_BLOCK_SIZE))
|
|
break;
|
|
|
|
/* increment and wrap the read pointer */
|
|
radio->rd_index += RDS_BLOCK_SIZE;
|
|
if (radio->rd_index >= radio->buf_size)
|
|
radio->rd_index = 0;
|
|
|
|
/* increment counters */
|
|
block_count++;
|
|
buf += RDS_BLOCK_SIZE;
|
|
r += RDS_BLOCK_SIZE;
|
|
}
|
|
|
|
out:
|
|
dev_dbg(radio->dev, "%s: exit\n", __func__);
|
|
mutex_unlock(&core->lock);
|
|
|
|
return r;
|
|
}
|
|
|
|
static const struct v4l2_file_operations wl1273_fops = {
|
|
.owner = THIS_MODULE,
|
|
.read = wl1273_fm_fops_read,
|
|
.write = wl1273_fm_fops_write,
|
|
.poll = wl1273_fm_fops_poll,
|
|
.unlocked_ioctl = video_ioctl2,
|
|
.open = wl1273_fm_fops_open,
|
|
.release = wl1273_fm_fops_release,
|
|
};
|
|
|
|
static int wl1273_fm_vidioc_querycap(struct file *file, void *priv,
|
|
struct v4l2_capability *capability)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
strscpy(capability->driver, WL1273_FM_DRIVER_NAME,
|
|
sizeof(capability->driver));
|
|
strscpy(capability->card, "TI Wl1273 FM Radio",
|
|
sizeof(capability->card));
|
|
strscpy(capability->bus_info, radio->bus_type,
|
|
sizeof(capability->bus_info));
|
|
return 0;
|
|
}
|
|
|
|
static int wl1273_fm_vidioc_g_input(struct file *file, void *priv,
|
|
unsigned int *i)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
*i = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl1273_fm_vidioc_s_input(struct file *file, void *priv,
|
|
unsigned int i)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
if (i != 0)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* wl1273_fm_set_tx_power() - Set the transmission power value.
|
|
* @radio: A pointer to the device struct.
|
|
* @power: The new power value.
|
|
*/
|
|
static int wl1273_fm_set_tx_power(struct wl1273_device *radio, u16 power)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
int r;
|
|
|
|
if (core->mode == WL1273_MODE_OFF ||
|
|
core->mode == WL1273_MODE_SUSPENDED)
|
|
return -EPERM;
|
|
|
|
mutex_lock(&core->lock);
|
|
|
|
/* Convert the dBuV value to chip presentation */
|
|
r = core->write(core, WL1273_POWER_LEV_SET, 122 - power);
|
|
if (r)
|
|
goto out;
|
|
|
|
radio->tx_power = power;
|
|
|
|
out:
|
|
mutex_unlock(&core->lock);
|
|
return r;
|
|
}
|
|
|
|
#define WL1273_SPACING_50kHz 1
|
|
#define WL1273_SPACING_100kHz 2
|
|
#define WL1273_SPACING_200kHz 4
|
|
|
|
static int wl1273_fm_tx_set_spacing(struct wl1273_device *radio,
|
|
unsigned int spacing)
|
|
{
|
|
struct wl1273_core *core = radio->core;
|
|
int r;
|
|
|
|
if (spacing == 0) {
|
|
r = core->write(core, WL1273_SCAN_SPACING_SET,
|
|
WL1273_SPACING_100kHz);
|
|
radio->spacing = 100;
|
|
} else if (spacing - 50000 < 25000) {
|
|
r = core->write(core, WL1273_SCAN_SPACING_SET,
|
|
WL1273_SPACING_50kHz);
|
|
radio->spacing = 50;
|
|
} else if (spacing - 100000 < 50000) {
|
|
r = core->write(core, WL1273_SCAN_SPACING_SET,
|
|
WL1273_SPACING_100kHz);
|
|
radio->spacing = 100;
|
|
} else {
|
|
r = core->write(core, WL1273_SCAN_SPACING_SET,
|
|
WL1273_SPACING_200kHz);
|
|
radio->spacing = 200;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
|
|
{
|
|
struct wl1273_device *radio = ctrl->priv;
|
|
struct wl1273_core *core = radio->core;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
if (mutex_lock_interruptible(&core->lock))
|
|
return -EINTR;
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
|
|
ctrl->val = wl1273_fm_get_tx_ctune(radio);
|
|
break;
|
|
|
|
default:
|
|
dev_warn(radio->dev, "%s: Unknown IOCTL: %d\n",
|
|
__func__, ctrl->id);
|
|
break;
|
|
}
|
|
|
|
mutex_unlock(&core->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define WL1273_MUTE_SOFT_ENABLE (1 << 0)
|
|
#define WL1273_MUTE_AC (1 << 1)
|
|
#define WL1273_MUTE_HARD_LEFT (1 << 2)
|
|
#define WL1273_MUTE_HARD_RIGHT (1 << 3)
|
|
#define WL1273_MUTE_SOFT_FORCE (1 << 4)
|
|
|
|
static inline struct wl1273_device *to_radio(struct v4l2_ctrl *ctrl)
|
|
{
|
|
return container_of(ctrl->handler, struct wl1273_device, ctrl_handler);
|
|
}
|
|
|
|
static int wl1273_fm_vidioc_s_ctrl(struct v4l2_ctrl *ctrl)
|
|
{
|
|
struct wl1273_device *radio = to_radio(ctrl);
|
|
struct wl1273_core *core = radio->core;
|
|
int r = 0;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
if (mutex_lock_interruptible(&core->lock))
|
|
return -EINTR;
|
|
|
|
if (core->mode == WL1273_MODE_RX && ctrl->val)
|
|
r = core->write(core,
|
|
WL1273_MUTE_STATUS_SET,
|
|
WL1273_MUTE_HARD_LEFT |
|
|
WL1273_MUTE_HARD_RIGHT);
|
|
else if (core->mode == WL1273_MODE_RX)
|
|
r = core->write(core,
|
|
WL1273_MUTE_STATUS_SET, 0x0);
|
|
else if (core->mode == WL1273_MODE_TX && ctrl->val)
|
|
r = core->write(core, WL1273_MUTE, 1);
|
|
else if (core->mode == WL1273_MODE_TX)
|
|
r = core->write(core, WL1273_MUTE, 0);
|
|
|
|
mutex_unlock(&core->lock);
|
|
break;
|
|
|
|
case V4L2_CID_AUDIO_VOLUME:
|
|
if (ctrl->val == 0)
|
|
r = wl1273_fm_set_mode(radio, WL1273_MODE_OFF);
|
|
else
|
|
r = core->set_volume(core, core->volume);
|
|
break;
|
|
|
|
case V4L2_CID_TUNE_PREEMPHASIS:
|
|
r = wl1273_fm_set_preemphasis(radio, ctrl->val);
|
|
break;
|
|
|
|
case V4L2_CID_TUNE_POWER_LEVEL:
|
|
r = wl1273_fm_set_tx_power(radio, ctrl->val);
|
|
break;
|
|
|
|
default:
|
|
dev_warn(radio->dev, "%s: Unknown IOCTL: %d\n",
|
|
__func__, ctrl->id);
|
|
break;
|
|
}
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_vidioc_g_audio(struct file *file, void *priv,
|
|
struct v4l2_audio *audio)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
if (audio->index > 1)
|
|
return -EINVAL;
|
|
|
|
strscpy(audio->name, "Radio", sizeof(audio->name));
|
|
audio->capability = V4L2_AUDCAP_STEREO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl1273_fm_vidioc_s_audio(struct file *file, void *priv,
|
|
const struct v4l2_audio *audio)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
if (audio->index != 0)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define WL1273_RDS_NOT_SYNCHRONIZED 0
|
|
#define WL1273_RDS_SYNCHRONIZED 1
|
|
|
|
static int wl1273_fm_vidioc_g_tuner(struct file *file, void *priv,
|
|
struct v4l2_tuner *tuner)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
struct wl1273_core *core = radio->core;
|
|
u16 val;
|
|
int r;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
if (tuner->index > 0)
|
|
return -EINVAL;
|
|
|
|
strscpy(tuner->name, WL1273_FM_DRIVER_NAME, sizeof(tuner->name));
|
|
tuner->type = V4L2_TUNER_RADIO;
|
|
|
|
tuner->rangelow = WL1273_FREQ(WL1273_BAND_JAPAN_LOW);
|
|
tuner->rangehigh = WL1273_FREQ(WL1273_BAND_OTHER_HIGH);
|
|
|
|
tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_RDS |
|
|
V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO |
|
|
V4L2_TUNER_CAP_HWSEEK_BOUNDED | V4L2_TUNER_CAP_HWSEEK_WRAP;
|
|
|
|
if (radio->stereo)
|
|
tuner->audmode = V4L2_TUNER_MODE_STEREO;
|
|
else
|
|
tuner->audmode = V4L2_TUNER_MODE_MONO;
|
|
|
|
if (core->mode != WL1273_MODE_RX)
|
|
return 0;
|
|
|
|
if (mutex_lock_interruptible(&core->lock))
|
|
return -EINTR;
|
|
|
|
r = core->read(core, WL1273_STEREO_GET, &val);
|
|
if (r)
|
|
goto out;
|
|
|
|
if (val == 1)
|
|
tuner->rxsubchans = V4L2_TUNER_SUB_STEREO;
|
|
else
|
|
tuner->rxsubchans = V4L2_TUNER_SUB_MONO;
|
|
|
|
r = core->read(core, WL1273_RSSI_LVL_GET, &val);
|
|
if (r)
|
|
goto out;
|
|
|
|
tuner->signal = (s16) val;
|
|
dev_dbg(radio->dev, "Signal: %d\n", tuner->signal);
|
|
|
|
tuner->afc = 0;
|
|
|
|
r = core->read(core, WL1273_RDS_SYNC_GET, &val);
|
|
if (r)
|
|
goto out;
|
|
|
|
if (val == WL1273_RDS_SYNCHRONIZED)
|
|
tuner->rxsubchans |= V4L2_TUNER_SUB_RDS;
|
|
out:
|
|
mutex_unlock(&core->lock);
|
|
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_vidioc_s_tuner(struct file *file, void *priv,
|
|
const struct v4l2_tuner *tuner)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
struct wl1273_core *core = radio->core;
|
|
int r = 0;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
dev_dbg(radio->dev, "tuner->index: %d\n", tuner->index);
|
|
dev_dbg(radio->dev, "tuner->name: %s\n", tuner->name);
|
|
dev_dbg(radio->dev, "tuner->capability: 0x%04x\n", tuner->capability);
|
|
dev_dbg(radio->dev, "tuner->rxsubchans: 0x%04x\n", tuner->rxsubchans);
|
|
dev_dbg(radio->dev, "tuner->rangelow: %d\n", tuner->rangelow);
|
|
dev_dbg(radio->dev, "tuner->rangehigh: %d\n", tuner->rangehigh);
|
|
|
|
if (tuner->index > 0)
|
|
return -EINVAL;
|
|
|
|
if (mutex_lock_interruptible(&core->lock))
|
|
return -EINTR;
|
|
|
|
r = wl1273_fm_set_mode(radio, WL1273_MODE_RX);
|
|
if (r)
|
|
goto out;
|
|
|
|
if (tuner->rxsubchans & V4L2_TUNER_SUB_RDS)
|
|
r = wl1273_fm_set_rds(radio, WL1273_RDS_ON);
|
|
else
|
|
r = wl1273_fm_set_rds(radio, WL1273_RDS_OFF);
|
|
|
|
if (r)
|
|
dev_warn(radio->dev, "%s: RDS fails: %d\n", __func__, r);
|
|
|
|
if (tuner->audmode == V4L2_TUNER_MODE_MONO) {
|
|
r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_MONO);
|
|
if (r < 0) {
|
|
dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n",
|
|
__func__, r);
|
|
goto out;
|
|
}
|
|
radio->stereo = false;
|
|
} else if (tuner->audmode == V4L2_TUNER_MODE_STEREO) {
|
|
r = core->write(core, WL1273_MOST_MODE_SET, WL1273_RX_STEREO);
|
|
if (r < 0) {
|
|
dev_warn(radio->dev, "%s: MOST_MODE fails: %d\n",
|
|
__func__, r);
|
|
goto out;
|
|
}
|
|
radio->stereo = true;
|
|
} else {
|
|
dev_err(radio->dev, "%s: tuner->audmode: %d\n",
|
|
__func__, tuner->audmode);
|
|
r = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
mutex_unlock(&core->lock);
|
|
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_vidioc_g_frequency(struct file *file, void *priv,
|
|
struct v4l2_frequency *freq)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
struct wl1273_core *core = radio->core;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
if (mutex_lock_interruptible(&core->lock))
|
|
return -EINTR;
|
|
|
|
freq->type = V4L2_TUNER_RADIO;
|
|
freq->frequency = WL1273_FREQ(wl1273_fm_get_freq(radio));
|
|
|
|
mutex_unlock(&core->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl1273_fm_vidioc_s_frequency(struct file *file, void *priv,
|
|
const struct v4l2_frequency *freq)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
struct wl1273_core *core = radio->core;
|
|
int r;
|
|
|
|
dev_dbg(radio->dev, "%s: %d\n", __func__, freq->frequency);
|
|
|
|
if (freq->type != V4L2_TUNER_RADIO) {
|
|
dev_dbg(radio->dev,
|
|
"freq->type != V4L2_TUNER_RADIO: %d\n", freq->type);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (mutex_lock_interruptible(&core->lock))
|
|
return -EINTR;
|
|
|
|
if (core->mode == WL1273_MODE_RX) {
|
|
dev_dbg(radio->dev, "freq: %d\n", freq->frequency);
|
|
|
|
r = wl1273_fm_set_rx_freq(radio,
|
|
WL1273_INV_FREQ(freq->frequency));
|
|
if (r)
|
|
dev_warn(radio->dev, WL1273_FM_DRIVER_NAME
|
|
": set frequency failed with %d\n", r);
|
|
} else {
|
|
r = wl1273_fm_set_tx_freq(radio,
|
|
WL1273_INV_FREQ(freq->frequency));
|
|
if (r)
|
|
dev_warn(radio->dev, WL1273_FM_DRIVER_NAME
|
|
": set frequency failed with %d\n", r);
|
|
}
|
|
|
|
mutex_unlock(&core->lock);
|
|
|
|
dev_dbg(radio->dev, "wl1273_vidioc_s_frequency: DONE\n");
|
|
return r;
|
|
}
|
|
|
|
#define WL1273_DEFAULT_SEEK_LEVEL 7
|
|
|
|
static int wl1273_fm_vidioc_s_hw_freq_seek(struct file *file, void *priv,
|
|
const struct v4l2_hw_freq_seek *seek)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
struct wl1273_core *core = radio->core;
|
|
int r;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
if (seek->tuner != 0 || seek->type != V4L2_TUNER_RADIO)
|
|
return -EINVAL;
|
|
|
|
if (file->f_flags & O_NONBLOCK)
|
|
return -EWOULDBLOCK;
|
|
|
|
if (mutex_lock_interruptible(&core->lock))
|
|
return -EINTR;
|
|
|
|
r = wl1273_fm_set_mode(radio, WL1273_MODE_RX);
|
|
if (r)
|
|
goto out;
|
|
|
|
r = wl1273_fm_tx_set_spacing(radio, seek->spacing);
|
|
if (r)
|
|
dev_warn(radio->dev, "HW seek failed: %d\n", r);
|
|
|
|
r = wl1273_fm_set_seek(radio, seek->wrap_around, seek->seek_upward,
|
|
WL1273_DEFAULT_SEEK_LEVEL);
|
|
if (r)
|
|
dev_warn(radio->dev, "HW seek failed: %d\n", r);
|
|
|
|
out:
|
|
mutex_unlock(&core->lock);
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_vidioc_s_modulator(struct file *file, void *priv,
|
|
const struct v4l2_modulator *modulator)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
struct wl1273_core *core = radio->core;
|
|
int r = 0;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
if (modulator->index > 0)
|
|
return -EINVAL;
|
|
|
|
if (mutex_lock_interruptible(&core->lock))
|
|
return -EINTR;
|
|
|
|
r = wl1273_fm_set_mode(radio, WL1273_MODE_TX);
|
|
if (r)
|
|
goto out;
|
|
|
|
if (modulator->txsubchans & V4L2_TUNER_SUB_RDS)
|
|
r = wl1273_fm_set_rds(radio, WL1273_RDS_ON);
|
|
else
|
|
r = wl1273_fm_set_rds(radio, WL1273_RDS_OFF);
|
|
|
|
if (modulator->txsubchans & V4L2_TUNER_SUB_MONO)
|
|
r = core->write(core, WL1273_MONO_SET, WL1273_TX_MONO);
|
|
else
|
|
r = core->write(core, WL1273_MONO_SET,
|
|
WL1273_RX_STEREO);
|
|
if (r < 0)
|
|
dev_warn(radio->dev, WL1273_FM_DRIVER_NAME
|
|
"MONO_SET fails: %d\n", r);
|
|
out:
|
|
mutex_unlock(&core->lock);
|
|
|
|
return r;
|
|
}
|
|
|
|
static int wl1273_fm_vidioc_g_modulator(struct file *file, void *priv,
|
|
struct v4l2_modulator *modulator)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
struct wl1273_core *core = radio->core;
|
|
u16 val;
|
|
int r;
|
|
|
|
dev_dbg(radio->dev, "%s\n", __func__);
|
|
|
|
strscpy(modulator->name, WL1273_FM_DRIVER_NAME,
|
|
sizeof(modulator->name));
|
|
|
|
modulator->rangelow = WL1273_FREQ(WL1273_BAND_JAPAN_LOW);
|
|
modulator->rangehigh = WL1273_FREQ(WL1273_BAND_OTHER_HIGH);
|
|
|
|
modulator->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_RDS |
|
|
V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS_BLOCK_IO;
|
|
|
|
if (core->mode != WL1273_MODE_TX)
|
|
return 0;
|
|
|
|
if (mutex_lock_interruptible(&core->lock))
|
|
return -EINTR;
|
|
|
|
r = core->read(core, WL1273_MONO_SET, &val);
|
|
if (r)
|
|
goto out;
|
|
|
|
if (val == WL1273_TX_STEREO)
|
|
modulator->txsubchans = V4L2_TUNER_SUB_STEREO;
|
|
else
|
|
modulator->txsubchans = V4L2_TUNER_SUB_MONO;
|
|
|
|
if (radio->rds_on)
|
|
modulator->txsubchans |= V4L2_TUNER_SUB_RDS;
|
|
out:
|
|
mutex_unlock(&core->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wl1273_fm_vidioc_log_status(struct file *file, void *priv)
|
|
{
|
|
struct wl1273_device *radio = video_get_drvdata(video_devdata(file));
|
|
struct wl1273_core *core = radio->core;
|
|
struct device *dev = radio->dev;
|
|
u16 val;
|
|
int r;
|
|
|
|
dev_info(dev, DRIVER_DESC);
|
|
|
|
if (core->mode == WL1273_MODE_OFF) {
|
|
dev_info(dev, "Mode: Off\n");
|
|
return 0;
|
|
}
|
|
|
|
if (core->mode == WL1273_MODE_SUSPENDED) {
|
|
dev_info(dev, "Mode: Suspended\n");
|
|
return 0;
|
|
}
|
|
|
|
r = core->read(core, WL1273_ASIC_ID_GET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get ASIC_ID fails.\n", __func__);
|
|
else
|
|
dev_info(dev, "ASIC_ID: 0x%04x\n", val);
|
|
|
|
r = core->read(core, WL1273_ASIC_VER_GET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get ASIC_VER fails.\n", __func__);
|
|
else
|
|
dev_info(dev, "ASIC Version: 0x%04x\n", val);
|
|
|
|
r = core->read(core, WL1273_FIRM_VER_GET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get FIRM_VER fails.\n", __func__);
|
|
else
|
|
dev_info(dev, "FW version: %d(0x%04x)\n", val, val);
|
|
|
|
r = core->read(core, WL1273_BAND_SET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get BAND fails.\n", __func__);
|
|
else
|
|
dev_info(dev, "BAND: %d\n", val);
|
|
|
|
if (core->mode == WL1273_MODE_TX) {
|
|
r = core->read(core, WL1273_PUPD_SET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get PUPD fails.\n", __func__);
|
|
else
|
|
dev_info(dev, "PUPD: 0x%04x\n", val);
|
|
|
|
r = core->read(core, WL1273_CHANL_SET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get CHANL fails.\n", __func__);
|
|
else
|
|
dev_info(dev, "Tx frequency: %dkHz\n", val*10);
|
|
} else if (core->mode == WL1273_MODE_RX) {
|
|
int bf = radio->rangelow;
|
|
|
|
r = core->read(core, WL1273_FREQ_SET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get FREQ fails.\n", __func__);
|
|
else
|
|
dev_info(dev, "RX Frequency: %dkHz\n", bf + val*50);
|
|
|
|
r = core->read(core, WL1273_MOST_MODE_SET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get MOST_MODE fails.\n",
|
|
__func__);
|
|
else if (val == 0)
|
|
dev_info(dev, "MOST_MODE: Stereo according to blend\n");
|
|
else if (val == 1)
|
|
dev_info(dev, "MOST_MODE: Force mono output\n");
|
|
else
|
|
dev_info(dev, "MOST_MODE: Unexpected value: %d\n", val);
|
|
|
|
r = core->read(core, WL1273_MOST_BLEND_SET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get MOST_BLEND fails.\n", __func__);
|
|
else if (val == 0)
|
|
dev_info(dev,
|
|
"MOST_BLEND: Switched blend & hysteresis.\n");
|
|
else if (val == 1)
|
|
dev_info(dev, "MOST_BLEND: Soft blend.\n");
|
|
else
|
|
dev_info(dev, "MOST_BLEND: Unexpected val: %d\n", val);
|
|
|
|
r = core->read(core, WL1273_STEREO_GET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get STEREO fails.\n", __func__);
|
|
else if (val == 0)
|
|
dev_info(dev, "STEREO: Not detected\n");
|
|
else if (val == 1)
|
|
dev_info(dev, "STEREO: Detected\n");
|
|
else
|
|
dev_info(dev, "STEREO: Unexpected value: %d\n", val);
|
|
|
|
r = core->read(core, WL1273_RSSI_LVL_GET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get RSSI_LVL fails.\n", __func__);
|
|
else
|
|
dev_info(dev, "RX signal strength: %d\n", (s16) val);
|
|
|
|
r = core->read(core, WL1273_POWER_SET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get POWER fails.\n", __func__);
|
|
else
|
|
dev_info(dev, "POWER: 0x%04x\n", val);
|
|
|
|
r = core->read(core, WL1273_INT_MASK_SET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get INT_MASK fails.\n", __func__);
|
|
else
|
|
dev_info(dev, "INT_MASK: 0x%04x\n", val);
|
|
|
|
r = core->read(core, WL1273_RDS_SYNC_GET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get RDS_SYNC fails.\n",
|
|
__func__);
|
|
else if (val == 0)
|
|
dev_info(dev, "RDS_SYNC: Not synchronized\n");
|
|
|
|
else if (val == 1)
|
|
dev_info(dev, "RDS_SYNC: Synchronized\n");
|
|
else
|
|
dev_info(dev, "RDS_SYNC: Unexpected value: %d\n", val);
|
|
|
|
r = core->read(core, WL1273_I2S_MODE_CONFIG_SET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get I2S_MODE_CONFIG fails.\n",
|
|
__func__);
|
|
else
|
|
dev_info(dev, "I2S_MODE_CONFIG: 0x%04x\n", val);
|
|
|
|
r = core->read(core, WL1273_VOLUME_SET, &val);
|
|
if (r)
|
|
dev_err(dev, "%s: Get VOLUME fails.\n", __func__);
|
|
else
|
|
dev_info(dev, "VOLUME: 0x%04x\n", val);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void wl1273_vdev_release(struct video_device *dev)
|
|
{
|
|
}
|
|
|
|
static const struct v4l2_ctrl_ops wl1273_ctrl_ops = {
|
|
.s_ctrl = wl1273_fm_vidioc_s_ctrl,
|
|
.g_volatile_ctrl = wl1273_fm_g_volatile_ctrl,
|
|
};
|
|
|
|
static const struct v4l2_ioctl_ops wl1273_ioctl_ops = {
|
|
.vidioc_querycap = wl1273_fm_vidioc_querycap,
|
|
.vidioc_g_input = wl1273_fm_vidioc_g_input,
|
|
.vidioc_s_input = wl1273_fm_vidioc_s_input,
|
|
.vidioc_g_audio = wl1273_fm_vidioc_g_audio,
|
|
.vidioc_s_audio = wl1273_fm_vidioc_s_audio,
|
|
.vidioc_g_tuner = wl1273_fm_vidioc_g_tuner,
|
|
.vidioc_s_tuner = wl1273_fm_vidioc_s_tuner,
|
|
.vidioc_g_frequency = wl1273_fm_vidioc_g_frequency,
|
|
.vidioc_s_frequency = wl1273_fm_vidioc_s_frequency,
|
|
.vidioc_s_hw_freq_seek = wl1273_fm_vidioc_s_hw_freq_seek,
|
|
.vidioc_g_modulator = wl1273_fm_vidioc_g_modulator,
|
|
.vidioc_s_modulator = wl1273_fm_vidioc_s_modulator,
|
|
.vidioc_log_status = wl1273_fm_vidioc_log_status,
|
|
};
|
|
|
|
static const struct video_device wl1273_viddev_template = {
|
|
.fops = &wl1273_fops,
|
|
.ioctl_ops = &wl1273_ioctl_ops,
|
|
.name = WL1273_FM_DRIVER_NAME,
|
|
.release = wl1273_vdev_release,
|
|
.vfl_dir = VFL_DIR_TX,
|
|
.device_caps = V4L2_CAP_HW_FREQ_SEEK | V4L2_CAP_TUNER |
|
|
V4L2_CAP_RADIO | V4L2_CAP_AUDIO |
|
|
V4L2_CAP_RDS_CAPTURE | V4L2_CAP_MODULATOR |
|
|
V4L2_CAP_RDS_OUTPUT,
|
|
};
|
|
|
|
static void wl1273_fm_radio_remove(struct platform_device *pdev)
|
|
{
|
|
struct wl1273_device *radio = platform_get_drvdata(pdev);
|
|
struct wl1273_core *core = radio->core;
|
|
|
|
dev_info(&pdev->dev, "%s.\n", __func__);
|
|
|
|
free_irq(core->client->irq, radio);
|
|
core->pdata->free_resources();
|
|
|
|
v4l2_ctrl_handler_free(&radio->ctrl_handler);
|
|
video_unregister_device(&radio->videodev);
|
|
v4l2_device_unregister(&radio->v4l2dev);
|
|
}
|
|
|
|
static int wl1273_fm_radio_probe(struct platform_device *pdev)
|
|
{
|
|
struct wl1273_core **core = pdev->dev.platform_data;
|
|
struct wl1273_device *radio;
|
|
struct v4l2_ctrl *ctrl;
|
|
int r = 0;
|
|
|
|
pr_debug("%s\n", __func__);
|
|
|
|
if (!core) {
|
|
dev_err(&pdev->dev, "No platform data.\n");
|
|
r = -EINVAL;
|
|
goto pdata_err;
|
|
}
|
|
|
|
radio = devm_kzalloc(&pdev->dev, sizeof(*radio), GFP_KERNEL);
|
|
if (!radio) {
|
|
r = -ENOMEM;
|
|
goto pdata_err;
|
|
}
|
|
|
|
/* RDS buffer allocation */
|
|
radio->buf_size = rds_buf * RDS_BLOCK_SIZE;
|
|
radio->buffer = devm_kzalloc(&pdev->dev, radio->buf_size, GFP_KERNEL);
|
|
if (!radio->buffer) {
|
|
pr_err("Cannot allocate memory for RDS buffer.\n");
|
|
r = -ENOMEM;
|
|
goto pdata_err;
|
|
}
|
|
|
|
radio->core = *core;
|
|
radio->irq_flags = WL1273_IRQ_MASK;
|
|
radio->dev = &radio->core->client->dev;
|
|
radio->rds_on = false;
|
|
radio->core->mode = WL1273_MODE_OFF;
|
|
radio->tx_power = 118;
|
|
radio->core->audio_mode = WL1273_AUDIO_ANALOG;
|
|
radio->band = WL1273_BAND_OTHER;
|
|
radio->core->i2s_mode = WL1273_I2S_DEF_MODE;
|
|
radio->core->channel_number = 2;
|
|
radio->core->volume = WL1273_DEFAULT_VOLUME;
|
|
radio->rx_frequency = WL1273_BAND_OTHER_LOW;
|
|
radio->tx_frequency = WL1273_BAND_OTHER_HIGH;
|
|
radio->rangelow = WL1273_BAND_OTHER_LOW;
|
|
radio->rangehigh = WL1273_BAND_OTHER_HIGH;
|
|
radio->stereo = true;
|
|
radio->bus_type = "I2C";
|
|
|
|
if (radio->core->pdata->request_resources) {
|
|
r = radio->core->pdata->request_resources(radio->core->client);
|
|
if (r) {
|
|
dev_err(radio->dev, WL1273_FM_DRIVER_NAME
|
|
": Cannot get platform data\n");
|
|
goto pdata_err;
|
|
}
|
|
|
|
dev_dbg(radio->dev, "irq: %d\n", radio->core->client->irq);
|
|
|
|
r = request_threaded_irq(radio->core->client->irq, NULL,
|
|
wl1273_fm_irq_thread_handler,
|
|
IRQF_ONESHOT | IRQF_TRIGGER_FALLING,
|
|
"wl1273-fm", radio);
|
|
if (r < 0) {
|
|
dev_err(radio->dev, WL1273_FM_DRIVER_NAME
|
|
": Unable to register IRQ handler: %d\n", r);
|
|
goto err_request_irq;
|
|
}
|
|
} else {
|
|
dev_err(radio->dev, WL1273_FM_DRIVER_NAME ": Core WL1273 IRQ not configured");
|
|
r = -EINVAL;
|
|
goto pdata_err;
|
|
}
|
|
|
|
init_completion(&radio->busy);
|
|
init_waitqueue_head(&radio->read_queue);
|
|
|
|
radio->write_buf = devm_kzalloc(&pdev->dev, 256, GFP_KERNEL);
|
|
if (!radio->write_buf) {
|
|
r = -ENOMEM;
|
|
goto write_buf_err;
|
|
}
|
|
|
|
radio->dev = &pdev->dev;
|
|
radio->v4l2dev.ctrl_handler = &radio->ctrl_handler;
|
|
radio->rds_users = 0;
|
|
|
|
r = v4l2_device_register(&pdev->dev, &radio->v4l2dev);
|
|
if (r) {
|
|
dev_err(&pdev->dev, "Cannot register v4l2_device.\n");
|
|
goto write_buf_err;
|
|
}
|
|
|
|
/* V4L2 configuration */
|
|
radio->videodev = wl1273_viddev_template;
|
|
|
|
radio->videodev.v4l2_dev = &radio->v4l2dev;
|
|
|
|
v4l2_ctrl_handler_init(&radio->ctrl_handler, 6);
|
|
|
|
/* add in ascending ID order */
|
|
v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops,
|
|
V4L2_CID_AUDIO_VOLUME, 0, WL1273_MAX_VOLUME, 1,
|
|
WL1273_DEFAULT_VOLUME);
|
|
|
|
v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops,
|
|
V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
|
|
|
|
v4l2_ctrl_new_std_menu(&radio->ctrl_handler, &wl1273_ctrl_ops,
|
|
V4L2_CID_TUNE_PREEMPHASIS,
|
|
V4L2_PREEMPHASIS_75_uS, 0x03,
|
|
V4L2_PREEMPHASIS_50_uS);
|
|
|
|
v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops,
|
|
V4L2_CID_TUNE_POWER_LEVEL, 91, 122, 1, 118);
|
|
|
|
ctrl = v4l2_ctrl_new_std(&radio->ctrl_handler, &wl1273_ctrl_ops,
|
|
V4L2_CID_TUNE_ANTENNA_CAPACITOR,
|
|
0, 255, 1, 255);
|
|
if (ctrl)
|
|
ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
|
|
|
|
if (radio->ctrl_handler.error) {
|
|
r = radio->ctrl_handler.error;
|
|
dev_err(&pdev->dev, "Ctrl handler error: %d\n", r);
|
|
goto handler_init_err;
|
|
}
|
|
|
|
video_set_drvdata(&radio->videodev, radio);
|
|
platform_set_drvdata(pdev, radio);
|
|
|
|
/* register video device */
|
|
r = video_register_device(&radio->videodev, VFL_TYPE_RADIO, radio_nr);
|
|
if (r) {
|
|
dev_err(&pdev->dev, WL1273_FM_DRIVER_NAME
|
|
": Could not register video device\n");
|
|
goto handler_init_err;
|
|
}
|
|
|
|
return 0;
|
|
|
|
handler_init_err:
|
|
v4l2_ctrl_handler_free(&radio->ctrl_handler);
|
|
v4l2_device_unregister(&radio->v4l2dev);
|
|
write_buf_err:
|
|
free_irq(radio->core->client->irq, radio);
|
|
err_request_irq:
|
|
radio->core->pdata->free_resources();
|
|
pdata_err:
|
|
return r;
|
|
}
|
|
|
|
static struct platform_driver wl1273_fm_radio_driver = {
|
|
.probe = wl1273_fm_radio_probe,
|
|
.remove_new = wl1273_fm_radio_remove,
|
|
.driver = {
|
|
.name = "wl1273_fm_radio",
|
|
},
|
|
};
|
|
|
|
module_platform_driver(wl1273_fm_radio_driver);
|
|
|
|
MODULE_AUTHOR("Matti Aaltonen <matti.j.aaltonen@nokia.com>");
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:wl1273_fm_radio");
|