This is a parent driver for two child drivers: the V4L2 driver and
the ALSA codec driver. The MFD part provides the I2C communication
to the device and the state handling.
Signed-off-by: Matti J. Aaltonen <matti.j.aaltonen@xxxxxxxxx>
---
drivers/mfd/Kconfig | 6 +
drivers/mfd/Makefile | 2 +
drivers/mfd/wl1273-core.c | 1825 +++++++++++++++++++++++++++++++++++++++
include/linux/mfd/wl1273-core.h | 265 ++++++
4 files changed, 2098 insertions(+), 0 deletions(-)
create mode 100644 drivers/mfd/wl1273-core.c
create mode 100644 include/linux/mfd/wl1273-core.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 413576a..c16d500 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -135,6 +135,12 @@ config TWL4030_CODEC
select MFD_CORE
default n
+config WL1273_CORE
+ tristate
+ depends on I2C
+ select MFD_CORE
+ default n
+
config MFD_TMIO
bool
default n
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 16a349f..5381cd3 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -30,6 +30,8 @@ obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o
obj-$(CONFIG_TWL4030_POWER) += twl4030-power.o
obj-$(CONFIG_TWL4030_CODEC) += twl4030-codec.o
+obj-$(CONFIG_WL1273_CORE) += wl1273-core.o
+
obj-$(CONFIG_MFD_MC13783) += mc13783-core.o
obj-$(CONFIG_MFD_CORE) += mfd-core.o
diff --git a/drivers/mfd/wl1273-core.c b/drivers/mfd/wl1273-core.c
new file mode 100644
index 0000000..77b9442
--- /dev/null
+++ b/drivers/mfd/wl1273-core.c
@@ -0,0 +1,1825 @@
+/*
+ * MFD driver for wl1273 FM radio and audio codec submodules.
+ *
+ * Author: Matti Aaltonen <matti.j.aaltonen@xxxxxxxxx>
+ *
+ * Copyright: (C) 2010 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#undef DEBUG
+
+#include <asm/unaligned.h>
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/wl1273-core.h>
+#include <media/v4l2-common.h>
+
+#define DRIVER_DESC "WL1273 FM Radio Core"
+
+#define WL1273_FR_EVENT (1 << 0)
+#define WL1273_BL_EVENT (1 << 1)
+#define WL1273_RDS_EVENT (1 << 2)
+#define WL1273_BBLK_EVENT (1 << 3)
+#define WL1273_LSYNC_EVENT (1 << 4)
+#define WL1273_LEV_EVENT (1 << 5)
+#define WL1273_IFFR_EVENT (1 << 6)
+#define WL1273_PI_EVENT (1 << 7)
+#define WL1273_PD_EVENT (1 << 8)
+#define WL1273_STIC_EVENT (1 << 9)
+#define WL1273_MAL_EVENT (1 << 10)
+#define WL1273_POW_ENB_EVENT (1 << 11)
+#define WL1273_SCAN_OVER_EVENT (1 << 12)
+#define WL1273_ERROR_EVENT (1 << 13)
+
+#define WL1273_IRQ_MASK (WL1273_FR_EVENT | \
+ WL1273_POW_ENB_EVENT)
+
+/* I2S protocol, left channel first, data width 16 bits */
+#define WL1273_PCM_DEF_MODE 0x00
+
+/* Rx */
+#define WL1273_AUDIO_ENABLE_I2S (1 << 0)
+#define WL1273_AUDIO_ENABLE_ANALOG (1 << 1)
+
+/* Tx */
+#define WL1273_AUDIO_IO_SET_ANALOG 0
+#define WL1273_AUDIO_IO_SET_I2S 1
+
+#define WL1273_POWER_SET_OFF 0
+#define WL1273_POWER_SET_FM (1 << 0)
+#define WL1273_POWER_SET_RDS (1 << 1)
+#define WL1273_POWER_SET_RETENTION (1 << 4)
+
+#define WL1273_PUPD_SET_OFF 0x00
+#define WL1273_PUPD_SET_ON 0x01
+#define WL1273_PUPD_SET_RETENTION 0x10
+
+#define TUNER_MODE_STOP_SEARCH 0
+#define TUNER_MODE_PRESET 1
+#define TUNER_MODE_AUTO_SEEK 2
+#define TUNER_MODE_AF 3
+
+/* I2S mode */
+#define WL1273_IS2_WIDTH_32 0x0
+#define WL1273_IS2_WIDTH_40 0x1
+#define WL1273_IS2_WIDTH_22_23 0x2
+#define WL1273_IS2_WIDTH_23_22 0x3
+#define WL1273_IS2_WIDTH_48 0x4
+#define WL1273_IS2_WIDTH_50 0x5
+#define WL1273_IS2_WIDTH_60 0x6
+#define WL1273_IS2_WIDTH_64 0x7
+#define WL1273_IS2_WIDTH_80 0x8
+#define WL1273_IS2_WIDTH_96 0x9
+#define WL1273_IS2_WIDTH_128 0xa
+#define WL1273_IS2_WIDTH 0xf
+
+#define WL1273_IS2_FORMAT_STD (0x0 << 4)
+#define WL1273_IS2_FORMAT_LEFT (0x1 << 4)
+#define WL1273_IS2_FORMAT_RIGHT (0x2 << 4)
+#define WL1273_IS2_FORMAT_USER (0x3 << 4)
+
+#define WL1273_IS2_MASTER (0x0 << 6)
+#define WL1273_IS2_SLAVEW (0x1 << 6)
+
+#define WL1273_IS2_TRI_AFTER_SENDING (0x0 << 7)
+#define WL1273_IS2_TRI_ALWAYS_ACTIVE (0x1 << 7)
+
+#define WL1273_IS2_SDOWS_RR (0x0 << 8)
+#define WL1273_IS2_SDOWS_RF (0x1 << 8)
+#define WL1273_IS2_SDOWS_FR (0x2 << 8)
+#define WL1273_IS2_SDOWS_FF (0x3 << 8)
+
+#define WL1273_IS2_TRI_OPT (0x0 << 10)
+#define WL1273_IS2_TRI_ALWAYS (0x1 << 10)
+
+#define WL1273_IS2_RATE_48K (0x0 << 12)
+#define WL1273_IS2_RATE_44_1K (0x1 << 12)
+#define WL1273_IS2_RATE_32K (0x2 << 12)
+#define WL1273_IS2_RATE_22_05K (0x4 << 12)
+#define WL1273_IS2_RATE_16K (0x5 << 12)
+#define WL1273_IS2_RATE_12K (0x8 << 12)
+#define WL1273_IS2_RATE_11_025 (0x9 << 12)
+#define WL1273_IS2_RATE_8K (0xa << 12)
+#define WL1273_IS2_RATE (0xf << 12)
+
+#define WL1273_I2S_DEF_MODE (WL1273_IS2_WIDTH_32 | \
+ WL1273_IS2_FORMAT_STD | \
+ WL1273_IS2_MASTER | \
+ WL1273_IS2_TRI_AFTER_SENDING | \
+ WL1273_IS2_SDOWS_RR | \
+ WL1273_IS2_TRI_OPT | \
+ WL1273_IS2_RATE_48K)
+
+static const struct region_info regions[] = {
+ /* Japan */
+ {
+ .bottom_frequency = 76000,
+ .top_frequency = 90000,
+ .region = 0,
+ },
+ /* USA & Europe */
+ {
+ .bottom_frequency = 87500,
+ .top_frequency = 108000,
+ .region = 1,
+ },
+};
+
+/*
+ * static unsigned char radio_region - Region
+ *
+ * The regions are 0=Japan, 1=USA-Europe. USA-Europe is the default.
+ */
+static unsigned char radio_region = 1;
+module_param(radio_region, byte, 0);
+MODULE_PARM_DESC(radio_region, "Region: 0=Japan, 1=USA-Europe*");
+
+/*
+ * 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, "RDS buffer entries: *100*");
+
+int wl1273_fm_read_reg(struct wl1273_core *core, u8 reg, u16 *value)
+{
+ struct i2c_client *client = core->i2c_dev;
+ u8 b[2];
+ int r;
+
+ r = i2c_smbus_read_i2c_block_data(client, reg, 2, b);
+ if (r != 2) {
+ dev_err(&client->dev, "%s: Read: %d fails.\n", __func__, reg);
+ return -EREMOTEIO;
+ }
+
+ *value = (u16)b[0] << 8 | b[1];
+
+ return 0;
+}
+EXPORT_SYMBOL(wl1273_fm_read_reg);
+
+int wl1273_fm_write_cmd(struct wl1273_core *core, u8 cmd, u16 param)
+{
+ struct i2c_client *client = core->i2c_dev;
+ u8 buf[] = { (param >> 8) & 0xff, param & 0xff };
+ int r;
+
+ r = i2c_smbus_write_i2c_block_data(client, cmd, 2, buf);
+ if (r) {
+ dev_err(&client->dev, "%s: Cmd: %d fails.\n", __func__, cmd);
+ return r;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(wl1273_fm_write_cmd);
+
+int wl1273_fm_write_data(struct wl1273_core *core, u8 *data, u16 len)
+{
+ struct i2c_client *client = core->i2c_dev;
+ struct i2c_msg msg[1];
+ int r;
+
+ msg[0].addr = client->addr;
+ msg[0].flags = 0;
+ msg[0].buf = data;
+ msg[0].len = len;
+
+ r = i2c_transfer(client->adapter, msg, 1);
+
+ if (r != 1) {
+ dev_err(&client->dev, "%s: write error.\n", __func__);
+ return -EREMOTEIO;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(wl1273_fm_write_data);
+
+/**
+ * wl1273_fm_get_tx_ctune() - Get the TX tuning capacitor value.
+ * @core: A pointer to the device struct.
+ */
+unsigned int wl1273_fm_get_tx_ctune(struct wl1273_core *core)
+{
+ struct i2c_client *client = core->i2c_dev;
+ u16 val;
+ int r;
+
+ if (core->mode == WL1273_MODE_OFF ||
+ core->mode == WL1273_MODE_SUSPENDED)
+ return -EPERM;
+
+ r = wl1273_fm_read_reg(core, WL1273_READ_FMANT_TUNE_VALUE, &val);
+ if (r) {
+ dev_err(&client->dev, "%s: I2C error: %d\n", __func__, r);
+ goto out;
+ }
+
+out:
+ return val;
+}
+EXPORT_SYMBOL(wl1273_fm_get_tx_ctune);
+
+/**
+ * wl1273_fm_get_tx_power() Get the transmission power value.
+ * @core: A pointer to the device struct.
+ */
+unsigned int wl1273_fm_get_tx_power(struct wl1273_core *core)
+{
+ return core->tx_power;
+}
+EXPORT_SYMBOL(wl1273_fm_get_tx_power);
+
+/**
+ * wl1273_fm_set_tx_power() - Set the transmission power value.
+ * @core: A pointer to the device struct.
+ * @power: The new power value.
+ */
+int wl1273_fm_set_tx_power(struct wl1273_core *core, u16 power)
+{
+ int r;
+
+ if (core->mode == WL1273_MODE_OFF ||
+ core->mode == WL1273_MODE_SUSPENDED)
+ return -EPERM;
+
+ mutex_lock(&core->lock);
+
+ r = wl1273_fm_write_cmd(core, WL1273_POWER_LEV_SET, power);
+ if (r)
+ goto out;
+
+ core->tx_power = power;
+
+out:
+ mutex_unlock(&core->lock);
+ return r;
+}
+EXPORT_SYMBOL(wl1273_fm_set_tx_power);
+
+/**
+ * wl1273_fm_get_search_level() - Get the signal threshold value that
+ * once reached will stop the automatic
+ * RX channel seek process.
+ * @core: A pointer to the device struct.
+ */
+int wl1273_fm_get_search_level(struct wl1273_core *core)
+{
+ return core->search_level;
+}
+EXPORT_SYMBOL(wl1273_fm_get_search_level);
+
+/**
+ * wl1273_fm_set_search_level() - Set the signal strength value that is
+ * used to decide if a channel has benn
+ * found in automatic seek.
+ * @core: A pointer to the device struct.
+ * @level: The threshold signal strengt, an eight bit
+ * signed value.
+ */
+int wl1273_fm_set_search_level(struct wl1273_core *core, s16 level)
+{
+ if (core->mode == WL1273_MODE_OFF ||
+ core->mode == WL1273_MODE_SUSPENDED)
+ return -EPERM;
+
+ if (level < SCHAR_MIN || level > SCHAR_MAX)
+ return -ERANGE;
+
+ core->search_level = level;
+
+out:
+ return 0;
+}
+EXPORT_SYMBOL(wl1273_fm_set_search_level);
+
+/**
+ * wl1273_fm_get_preemphasis() - Get the current TX pre-emphasis value.
+ * @core: A pointer to the device struct.
+ */
+unsigned int wl1273_fm_get_preemphasis(struct wl1273_core *core)
+{
+ return core->preemphasis;
+}
+EXPORT_SYMBOL(wl1273_fm_get_preemphasis);
+
+/**
+ * wl1273_fm_set_preemphasis() - Set the TX pre-emphasis value.
+ * @core: 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.
+ */
+int wl1273_fm_set_preemphasis(struct wl1273_core *core,
+ unsigned int preemphasis)
+{
+ 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 = wl1273_fm_write_cmd(core, WL1273_PREMPH_SET, em);
+ if (r)
+ goto out;
+
+ core->preemphasis = preemphasis;
+
+out:
+ mutex_unlock(&core->lock);
+ return r;
+}
+EXPORT_SYMBOL(wl1273_fm_set_preemphasis);
+
+/**
+ * wl1273_fm_get_audio() - Get the current audio mode.
+ * @core: A pointer to the device struct.
+ *
+ */
+unsigned int wl1273_fm_get_audio(struct wl1273_core *core)
+{
+ return core->audio_mode;
+}
+EXPORT_SYMBOL(wl1273_fm_get_audio);
+
+/**
+ * wl1273_fm_set_audio() - Set audio mode.
+ * @core: A pointer to the device struct.
+ * @new_mode: The new audio mode.
+ *
+ * Audio modes are WL1273_AUDIO_DIGITAL and WL1273_AUDIO_ANALOG.
+ */
+int wl1273_fm_set_audio(struct wl1273_core *core, unsigned int new_mode)
+{
+ int r = 0;
+
+ if (core->mode == WL1273_MODE_OFF ||
+ core->mode == WL1273_MODE_SUSPENDED)
+ return -EPERM;
+
+ if (core->mode == WL1273_MODE_RX && new_mode == WL1273_AUDIO_DIGITAL) {
+ if (!(core->allowed_modes & WL1273_RX_ALLOWED)) {
+ r = -EPERM;
+ goto out;
+ }
+
+ r = wl1273_fm_write_cmd(core, WL1273_PCM_MODE_SET,
+ WL1273_PCM_DEF_MODE);
+ if (r)
+ goto out;
+
+ r = wl1273_fm_write_cmd(core, WL1273_I2S_MODE_CONFIG_SET,
+ core->i2s_mode);
+ if (r)
+ goto out;
+
+ r = wl1273_fm_write_cmd(core, WL1273_AUDIO_ENABLE,
+ WL1273_AUDIO_ENABLE_I2S);
+ if (r)
+ goto out;
+
+ } else if (core->mode == WL1273_MODE_RX &&
+ new_mode == WL1273_AUDIO_ANALOG) {
+ if (!(core->allowed_modes & WL1273_RX_ALLOWED)) {
+ r = -EPERM;
+ goto out;
+ }
+
+ r = wl1273_fm_write_cmd(core, WL1273_AUDIO_ENABLE,
+ WL1273_AUDIO_ENABLE_ANALOG);
+ if (r)
+ goto out;
+
+ } else if (core->mode == WL1273_MODE_TX &&
+ new_mode == WL1273_AUDIO_DIGITAL) {
+ if (!(core->allowed_modes & WL1273_TX_ALLOWED)) {
+ r = -EPERM;
+ goto out;
+ }
+
+ r = wl1273_fm_write_cmd(core, WL1273_I2S_MODE_CONFIG_SET,
+ core->i2s_mode);
+ if (r)
+ goto out;
+
+ r = wl1273_fm_write_cmd(core, WL1273_AUDIO_IO_SET,
+ WL1273_AUDIO_IO_SET_I2S);
+ if (r)
+ goto out;
+
+ } else if (core->mode == WL1273_MODE_TX &&
+ new_mode == WL1273_AUDIO_ANALOG) {
+ if (!(core->allowed_modes & WL1273_TX_ALLOWED)) {
+ r = -EPERM;
+ goto out;
+ }
+
+ r = wl1273_fm_write_cmd(core, WL1273_AUDIO_IO_SET,
+ WL1273_AUDIO_IO_SET_ANALOG);
+ if (r)
+ goto out;
+ }
+
+ core->audio_mode = new_mode;
+
+out:
+ return r;
+}
+EXPORT_SYMBOL(wl1273_fm_set_audio);
+
+/**
+ * wl1273_fm_tx_get_spacing() - Get the current TX channel spacing.
+ * @core: A pointer to the device struct.
+ */
+unsigned int wl1273_fm_tx_get_spacing(struct wl1273_core *core)
+{
+ return core->spacing;
+}
+EXPORT_SYMBOL(wl1273_fm_tx_get_spacing);
+
+/**
+ * wl1273_fm_tx_set_spacing() - Get TX channel spacing.
+ * @core: A pointer to the device struct.
+ * @spacing: The new channel spacing value.
+ *
+ * Available spacing values are WL1273_SPACING_50KHZ, WL1273_SPACING_100KHZ
+ * and WL1273_SPACING_200KHZ.
+ */
+int wl1273_fm_tx_set_spacing(struct wl1273_core *core, unsigned int spacing)
+{
+ int r;
+
+ if (core->mode == WL1273_MODE_OFF ||
+ core->mode == WL1273_MODE_SUSPENDED)
+ return -EPERM;
+
+ mutex_lock(&core->lock);
+
+ switch (spacing) {
+ case WL1273_SPACING_50KHZ:
+ r = wl1273_fm_write_cmd(core, WL1273_CHANL_BW_SET, 1);
+ if (r)
+ goto out;
+ break;
+ case WL1273_SPACING_100KHZ:
+ r = wl1273_fm_write_cmd(core, WL1273_CHANL_BW_SET, 2);
+ if (r)
+ goto out;
+ break;
+ case WL1273_SPACING_200KHZ:
+ r = wl1273_fm_write_cmd(core, WL1273_CHANL_BW_SET, 4);
+ if (r)
+ goto out;
+ break;
+ default:
+ r = -EINVAL;
+ goto out;
+ break;
+ }
+
+ core->spacing = spacing;
+
+out:
+ mutex_unlock(&core->lock);
+ return r;
+}
+EXPORT_SYMBOL(wl1273_fm_tx_set_spacing);
+
+/**
+ * wl1273_fm_upload_firmware_patch() - Upload the firmware.
+ * @core: 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_core *core)
+{
+ unsigned int packet_num;
+ const struct firmware *fw_p;
+ const char *fw_name = "radio-wl1273-fw.bin";
+ struct i2c_client *client;
+ __u8 *ptr;
+ int i, n, len, r;
+ struct i2c_msg *msgs;
+
+ client = core->i2c_dev;
+ dev_dbg(&client->dev, "%s:\n", __func__);
+
+ if (request_firmware(&fw_p, fw_name, &client->dev)) {
+ dev_info(&client->dev, "%s - %s not found\n", __func__,
+ fw_name);
+
+ return 0;
+ }
+
+ ptr = (__u8 *) fw_p->data;
+ packet_num = ptr[0];
+ dev_dbg(&client->dev, "%s: packets: %d\n", __func__, packet_num);
+
+ msgs = kmalloc((packet_num + 1)*sizeof(struct i2c_msg), GFP_KERNEL);
+ if (!msgs) {
+ r = -ENOMEM;
+ goto out;
+ }
+
+ i = 1;
+ for (n = 0; n <= packet_num; n++) {
+ len = ptr[i];
+
+ dev_dbg(&client->dev, "%s: len[%d]: %d\n",
+ __func__, n, len);
+
+ if (i + len + 1 <= fw_p->size) {
+ msgs[n].addr = client->addr;
+ msgs[n].flags = 0;
+ msgs[n].len = len;
+ msgs[n].buf = ptr + i + 1;
+ } else {
+ break;
+ }
+
+ i += len + 1;
+ }
+
+ r = i2c_transfer(client->adapter, msgs, packet_num);
+ kfree(msgs);
+
+ if (r != packet_num) {
+ dev_err(&client->dev, "FW upload error: %d\n", r);
+ dev_dbg(&client->dev, "%d != %d\n", packet_num, r);
+
+ r = -EREMOTEIO;
+ goto out;
+ } else {
+ r = 0;
+ }
+
+ /* ignore possible error here */
+ wl1273_fm_write_cmd(core, WL1273_RESET, 0);
+ dev_dbg(&client->dev, "n: %d, i: %d\n", n, i);
+
+ if (n - 1 != packet_num)
+ dev_warn(&client->dev, "%s - incorrect firmware size.\n",
+ __func__);
+
+ if (i != fw_p->size)
+ dev_warn(&client->dev, "%s - inconsistent firmware.\n",
+ __func__);
+
+ dev_dbg(&client->dev, "%s - download OK, r: %d\n", __func__, r);
+
+out:
+ release_firmware(fw_p);
+ return r;
+}
+
+int wl1273_fm_rds_off(struct wl1273_core *core)
+{
+ struct device *dev = &core->i2c_dev->dev;
+ int r;
+
+ if (core->mode == WL1273_MODE_TX)
+ return 0;
+
+ wait_for_completion_timeout(&core->busy, msecs_to_jiffies(1000));
+
+ core->irq_flags &= ~WL1273_RDS_EVENT;
+
+ r = wl1273_fm_write_cmd(core, WL1273_INT_MASK_SET,
+ core->irq_flags);
+ if (r)
+ goto end;
+
+ /* stop rds reception */
+ cancel_delayed_work(&core->work);
+
+ /* Service pending read */
+ wake_up_interruptible(&core->read_queue);
+
+ dev_dbg(dev, "%s\n", __func__);
+
+ r = wl1273_fm_write_cmd(core, WL1273_POWER_SET, WL1273_POWER_SET_FM);
+
+end:
+ dev_dbg(dev, "%s: exiting...\n", __func__);
+
+ return r;
+}
+EXPORT_SYMBOL(wl1273_fm_rds_off);
+
+static int wl1273_fm_rds(struct wl1273_core *core)
+{
+ struct i2c_client *client = core->i2c_dev;
+ struct device *dev = &client->dev;
+ struct rds_status {
+ unsigned int block_id:3;
+ unsigned int error_status:2;
+ unsigned int fifo_status:1;
+ unsigned int frame_in_sync:1;
+ unsigned int spare:1;
+ } rsta;
+ u16 val;
+ u8 b0[] = { WL1273_RDS_DATA_GET };
+ u8 b1[] = { 0, 0, 0 };
+ struct i2c_msg msg[] = {
+ {
+ .addr = client->addr,
+ .flags = 0,
+ .buf = b0,
+ .len = 1
+ },
+ {
+ .addr = client->addr,
+ .flags = I2C_M_RD,
+ .buf = b1,
+ .len = 3
+ }
+ };
+ int r;
+
+ r = wl1273_fm_read_reg(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, 2);
+ if (r != 2) {
+ dev_err(dev, WL1273_FM_DRIVER_NAME
+ ": %s: read_rds error r == %i)\n",
+ __func__, r);
+ }
+
+ rsta = *(struct rds_status *) &b1[2];
+ if (rsta.fifo_status == 0)
+ break;
+
+ /* copy RDS block to internal buffer */
+ memcpy(&core->buffer[core->wr_index], &b1, 3);
+ core->wr_index += 3;
+
+ /* wrap write pointer */
+ if (core->wr_index >= core->buf_size)
+ core->wr_index = 0;
+
+ /* check for overflow & start over */
+ if (core->wr_index == core->rd_index) {
+ dev_dbg(dev, "RDS OVERFLOW");
+
+ core->rd_index = 0;
+ core->wr_index = 0;
+ break;
+ }
+ } while (rsta.fifo_status == 1);
+
+ /* wake up read queue */
+ if (core->wr_index != core->rd_index)
+ wake_up_interruptible(&core->read_queue);
+
+ return 0;
+}
+
+static void wl1273_fm_rds_work(struct wl1273_core *core)
+{
+ wl1273_fm_rds(core);
+}
+
+static irqreturn_t wl1273_fm_irq_thread_handler(int irq, void *dev_id)
+{
+ int r;
+ u16 flags;
+ struct wl1273_core *core = dev_id;
+
+ r = wl1273_fm_read_reg(core, WL1273_FLAG_GET, &flags);
+ if (r)
+ goto out;
+
+ if (flags & WL1273_BL_EVENT) {
+ core->irq_received = flags;
+ dev_dbg(&core->i2c_dev->dev, "IRQ: BL\n");
+ }
+
+ if (flags & WL1273_RDS_EVENT) {
+ msleep(200);
+
+ wl1273_fm_rds_work(core);
+ }
+
+ if (flags & WL1273_BBLK_EVENT)
+ dev_dbg(&core->i2c_dev->dev, "IRQ: BBLK\n");
+
+ if (flags & WL1273_LSYNC_EVENT)
+ dev_dbg(&core->i2c_dev->dev, "IRQ: LSYNC\n");
+
+ if (flags & WL1273_LEV_EVENT) {
+ u16 level;
+
+ r = wl1273_fm_read_reg(core, WL1273_RSSI_LVL_GET, &level);
+
+ if (r)
+ goto out;
+
+ if (level > 14)
+ dev_dbg(&core->i2c_dev->dev, "IRQ: LEV: 0x%x04\n",
+ level);
+ }
+
+ if (flags & WL1273_IFFR_EVENT)
+ dev_dbg(&core->i2c_dev->dev, "IRQ: IFFR\n");
+
+ if (flags & WL1273_PI_EVENT)
+ dev_dbg(&core->i2c_dev->dev, "IRQ: PI\n");
+
+ if (flags & WL1273_PD_EVENT)
+ dev_dbg(&core->i2c_dev->dev, "IRQ: PD\n");
+
+ if (flags & WL1273_STIC_EVENT)
+ dev_dbg(&core->i2c_dev->dev, "IRQ: STIC\n");
+
+ if (flags & WL1273_MAL_EVENT)
+ dev_dbg(&core->i2c_dev->dev, "IRQ: MAL\n");
+
+ if (flags & WL1273_POW_ENB_EVENT) {
+ complete(&core->busy);
+ dev_dbg(&core->i2c_dev->dev, "NOT BUSY\n");
+ dev_dbg(&core->i2c_dev->dev, "IRQ: POW_ENB\n");
+ }
+
+ if (flags & WL1273_SCAN_OVER_EVENT)
+ dev_dbg(&core->i2c_dev->dev, "IRQ: SCAN_OVER\n");
+
+ if (flags & WL1273_ERROR_EVENT)
+ dev_dbg(&core->i2c_dev->dev, "IRQ: ERROR\n");
+
+ if (flags & WL1273_FR_EVENT) {
+ u16 freq;
+
+ dev_dbg(&core->i2c_dev->dev, "IRQ: FR:\n");
+
+ if (core->mode == WL1273_MODE_RX) {
+ r = wl1273_fm_write_cmd(core, WL1273_TUNER_MODE_SET,
+ TUNER_MODE_STOP_SEARCH);
+ if (r) {
+ dev_err(&core->i2c_dev->dev,
+ "%s: TUNER_MODE_SET fails: %d\n",
+ __func__, r);
+ goto out;
+ }
+
+ r = wl1273_fm_read_reg(core, WL1273_FREQ_SET, &freq);
+ if (r)
+ goto out;
+
+ core->rx_frequency =
+ regions[core->region].bottom_frequency +
+ freq * 50;
+
+ /*
+ * The driver works better with this msleep,
+ * the documentation doesn't mention it.
+ */
+ msleep(10);
+
+ dev_dbg(&core->i2c_dev->dev, "%dkHz\n",
+ core->rx_frequency);
+
+ } else {
+ r = wl1273_fm_read_reg(core, WL1273_CHANL_SET, &freq);
+ if (r)
+ goto out;
+
+ dev_dbg(&core->i2c_dev->dev, "%dkHz\n", freq);
+ }
+ dev_dbg(&core->i2c_dev->dev, "%s: NOT BUSY\n", __func__);
+ }
+
+out:
+ wl1273_fm_write_cmd(core, WL1273_INT_MASK_SET,
+ core->irq_flags);
+ complete(&core->busy);
+
+ return IRQ_HANDLED;
+}
+
+int wl1273_fm_set_rx_freq(struct wl1273_core *core, unsigned int freq)
+{
+ int r;
+
+ if (freq < regions[core->region].bottom_frequency) {
+ dev_err(&core->i2c_dev->dev,
+ "Frequency out of range: %d < %d\n",
+ freq, regions[core->region].bottom_frequency);
+ r = -EDOM;
+ goto err;
+ }
+
+ if (freq > regions[core->region].top_frequency) {
+ dev_err(&core->i2c_dev->dev,
+ "Frequency out of range: %d > %d\n",
+ freq, regions[core->region].top_frequency);
+ r = -EDOM;
+ goto err;
+ }
+
+ dev_dbg(&core->i2c_dev->dev, "%s: %dkHz\n", __func__, freq);
+
+ wl1273_fm_write_cmd(core, WL1273_INT_MASK_SET,
+ core->irq_flags);
+
+ r = wl1273_fm_write_cmd(core, WL1273_FREQ_SET,
+ (freq - regions[core->region].bottom_frequency)
+ / 50);
+ if (r)
+ goto err;
+
+ INIT_COMPLETION(core->busy);
+ r = wl1273_fm_write_cmd(core, WL1273_TUNER_MODE_SET,
+ TUNER_MODE_PRESET);
+ if (r) {
+ complete(&core->busy);
+ goto err;
+ }
+
+ r = wait_for_completion_timeout(&core->busy, msecs_to_jiffies(2000));
+ if (!r)
+ return -ETIMEDOUT;
+
+ core->rd_index = 0;
+ core->wr_index = 0;
+ core->rx_frequency = freq;
+ return 0;
+
+err:
+ return r;
+}
+EXPORT_SYMBOL(wl1273_fm_set_rx_freq);
+
+int wl1273_fm_set_tx_freq(struct wl1273_core *core, unsigned int freq)
+{
+ int r = 0;
+
+ if (freq < regions[core->region].bottom_frequency) {
+ dev_err(&core->i2c_dev->dev,
+ "Frequency out of range: %d < %d\n",
+ freq, regions[core->region].bottom_frequency);
+ return -EDOM;
+ }
+
+ if (freq > regions[core->region].top_frequency) {
+ dev_err(&core->i2c_dev->dev,
+ "Frequency out of range: %d > %d\n",
+ freq, regions[core->region].top_frequency);
+ return -EDOM;
+ }
+
+ /*
+ * The driver works better with this msleep,
+ * the documentation doesn't mention it.
+ */
+ msleep(5);
+ dev_dbg(&core->i2c_dev->dev, "%s: freq: %d kHz\n", __func__, freq);
+
+ INIT_COMPLETION(core->busy);
+ /* Set the current tx channel */
+ r = wl1273_fm_write_cmd(core, WL1273_CHANL_SET, freq / 10);
+ if (r)
+ return r;
+
+ /* wait for the FR IRQ */
+ r = wait_for_completion_timeout(&core->busy, msecs_to_jiffies(1000));
+ if (!r)
+ return -ETIMEDOUT;
+
+ dev_dbg(&core->i2c_dev->dev, "WL1273_CHANL_SET: %d\n", r);
+
+ /* Enable the output power */
+ INIT_COMPLETION(core->busy);
+ r = wl1273_fm_write_cmd(core, WL1273_POWER_ENB_SET, 1);
+ if (r)
+ return r;
+
+ /* wait for the POWER_ENB IRQ */
+ r = wait_for_completion_timeout(&core->busy, msecs_to_jiffies(1000));
+ if (!r)
+ return -ETIMEDOUT;
+
+ core->tx_frequency = freq;
+ dev_dbg(&core->i2c_dev->dev, "WL1273_POWER_ENB_SET: %d\n", r);
+
+ return 0;
+}
+EXPORT_SYMBOL(wl1273_fm_set_tx_freq);
+
+int wl1273_fm_get_freq(struct wl1273_core *core)
+{
+ unsigned int freq;
+ u16 f;
+ int r;
+
+ if (core->mode == WL1273_MODE_RX) {
+ r = wl1273_fm_read_reg(core, WL1273_FREQ_SET, &f);
+ if (r)
+ return r;
+
+ dev_dbg(&core->i2c_dev->dev, "Freq get: 0x%04x\n", f);
+ freq = regions[core->region].bottom_frequency + 50 * f;
+ } else {
+ r = wl1273_fm_read_reg(core, WL1273_CHANL_SET, &f);
+ if (r)
+ return r;
+
+ freq = f * 10;
+ }
+
+ return freq;
+}
+EXPORT_SYMBOL(wl1273_fm_get_freq);
+
+/**
+ * wl1273_fm_get_region() - Return the ID of the current region.
+ * @core: A pointer to the device structure.
+ */
+u8 wl1273_fm_get_region(struct wl1273_core *core)
+{
+ return core->region;
+}
+EXPORT_SYMBOL(wl1273_fm_get_region);
+
+/**
+ * wl1273_fm_set_region() - Change the current region.
+ * @core: A pointer to the device structure.
+ * @region: The ID of the new region.
+ *
+ * Wl1273 supports only two regions USA/Europe and Japan.
+ */
+int wl1273_fm_set_region(struct wl1273_core *core, unsigned int region)
+{
+ int r = 0;
+ unsigned int new_frequency = 0;
+
+ if (region == core->region)
+ return 0;
+
+ if (core->mode == WL1273_MODE_OFF ||
+ core->mode == WL1273_MODE_SUSPENDED)
+ return -EPERM;
+
+ if (region >= ARRAY_SIZE(regions))
+ return -EINVAL;
+
+ mutex_lock(&core->lock);
+
+ core->region = region;
+
+ if (core->rx_frequency < regions[core->region].bottom_frequency)
+ new_frequency = regions[core->region].bottom_frequency;
+ else if (core->rx_frequency > regions[core->region].top_frequency)
+ new_frequency = regions[core->region].top_frequency;
+
+ if (new_frequency) {
+ core->rx_frequency = new_frequency;
+ if (core->mode == WL1273_MODE_RX) {
+ r = wl1273_fm_set_rx_freq(core, new_frequency);
+ if (r)
+ goto out;
+ }
+ }
+
+ new_frequency = 0;
+ if (core->tx_frequency < regions[core->region].bottom_frequency)
+ new_frequency = regions[core->region].bottom_frequency;
+ else if (core->tx_frequency > regions[core->region].top_frequency)
+ new_frequency = regions[core->region].top_frequency;
+
+ if (new_frequency) {
+ core->tx_frequency = new_frequency;
+
+ if (core->mode == WL1273_MODE_TX) {
+ r = wl1273_fm_set_tx_freq(core, new_frequency);
+ if (r)
+ goto out;
+ }
+ }
+
+out:
+ mutex_unlock(&core->lock);
+ return r;
+}
+EXPORT_SYMBOL(wl1273_fm_set_region);
+
+int wl1273_fm_set_seek(struct wl1273_core *core,
+ unsigned int wrap_around,
+ unsigned int seek_upward)
+{
+ int r;
+ unsigned int dir = (seek_upward == 0) ? 0 : 1;
+ unsigned int rx_frequency;
+
+ rx_frequency = core->rx_frequency;
+ dev_dbg(&core->i2c_dev->dev, "core->rx_frequency: %d\n",
+ rx_frequency);
+
+ if (dir)
+ r = wl1273_fm_set_rx_freq(core, rx_frequency + 100);
+ else
+ r = wl1273_fm_set_rx_freq(core, rx_frequency - 100);
+
+ if (r)
+ goto out;
+
+ INIT_COMPLETION(core->busy);
+ dev_dbg(&core->i2c_dev->dev, "%s: BUSY\n", __func__);
+
+ r = wl1273_fm_write_cmd(core, WL1273_INT_MASK_SET,
+ core->irq_flags);
+ if (r)
+ goto out;
+
+ dev_dbg(&core->i2c_dev->dev, "%s\n", __func__);
+
+ r = wl1273_fm_write_cmd(core, WL1273_SEARCH_LVL_SET,
+ core->search_level);
+ if (r)
+ goto out;
+
+ r = wl1273_fm_write_cmd(core, WL1273_SEARCH_DIR_SET, dir);
+ if (r)
+ goto out;
+
+ r = wl1273_fm_write_cmd(core, WL1273_TUNER_MODE_SET,
+ TUNER_MODE_AUTO_SEEK);
+ if (r)
+ goto out;
+
+ wait_for_completion_timeout(&core->busy, msecs_to_jiffies(1000));
+ if (!(core->irq_received & WL1273_BL_EVENT))
+ goto out;
+
+ core->irq_received &= ~WL1273_BL_EVENT;
+
+ if (!wrap_around)
+ goto out;
+
+ /* Wrap around */
+ dev_dbg(&core->i2c_dev->dev, "Wrap around in HW seek.\n");
+
+ if (seek_upward)
+ rx_frequency = regions[core->region].bottom_frequency;
+ else
+ rx_frequency = regions[core->region].top_frequency;
+
+ r = wl1273_fm_set_rx_freq(core, rx_frequency);
+ if (r)
+ goto out;
+
+ INIT_COMPLETION(core->busy);
+ dev_dbg(&core->i2c_dev->dev, "%s: BUSY\n", __func__);
+
+ r = wl1273_fm_write_cmd(core, WL1273_TUNER_MODE_SET,
+ TUNER_MODE_AUTO_SEEK);
+ if (r)
+ goto out;
+
+ wait_for_completion_timeout(&core->busy, msecs_to_jiffies(1000));
+out:
+ dev_dbg(&core->i2c_dev->dev, "%s: Err: %d\n", __func__, r);
+ return r;
+}
+EXPORT_SYMBOL(wl1273_fm_set_seek);
+
+int wl1273_fm_rds_on(struct wl1273_core *core)
+{
+ int r;
+
+ dev_dbg(&core->i2c_dev->dev, "%s\n", __func__);
+
+ if (core->mode == WL1273_MODE_TX)
+ return 0;
+
+ core->irq_flags |= WL1273_RDS_EVENT;
+
+ r = wl1273_fm_write_cmd(core, WL1273_INT_MASK_SET, core->irq_flags);
+ if (r)
+ goto err;
+
+ r = wl1273_fm_write_cmd(core, WL1273_POWER_SET,
+ WL1273_POWER_SET_FM | WL1273_POWER_SET_RDS);
+ if (r)
+ goto err;
+
+ r = wl1273_fm_set_rx_freq(core, core->rx_frequency);
+ if (r) {
+ dev_err(&core->i2c_dev->dev,
+ "set freq fails: %d.\n", r);
+ goto err;
+ }
+ return 0;
+
+err:
+ dev_err(&core->i2c_dev->dev, "%s: Err: %d\n", __func__, r);
+ return r;
+}
+EXPORT_SYMBOL(wl1273_fm_rds_on);
+
+static int wl1273_fm_stop(struct wl1273_core *core)
+{
+ struct i2c_client *client = core->i2c_dev;
+ struct wl1273_fm_platform_data *pdata =
+ client->dev.platform_data;
+ int r = 0;
+
+ if (core->mode == WL1273_MODE_RX)
+ r = wl1273_fm_write_cmd(core, WL1273_POWER_SET,
+ WL1273_POWER_SET_OFF);
+ else if (core->mode == WL1273_MODE_TX)
+ r = wl1273_fm_write_cmd(core, WL1273_PUPD_SET,
+ WL1273_PUPD_SET_OFF);
+ else
+ r = -EPERM;
+
+ if (r) {
+ dev_err(&core->i2c_dev->dev,
+ "%s: POWER_SET fails: %d\n", __func__, r);
+ goto out;
+ }
+
+ if (pdata->disable)
+ pdata->disable();
+
+ dev_dbg(&core->i2c_dev->dev, "Back to reset\n");
+
+out:
+ return r;
+}
+
+static int wl1273_fm_suspend(struct wl1273_core *core)
+{
+ int r = 0;
+ struct i2c_client *client = core->i2c_dev;
+ struct wl1273_fm_platform_data *pdata =
+ client->dev.platform_data;
+
+ /* Cannot go from OFF to SUSPENDED */
+ if (core->mode == WL1273_MODE_RX)
+ r = wl1273_fm_write_cmd(core, WL1273_POWER_SET,
+ WL1273_POWER_SET_RETENTION);
+ else if (core->mode == WL1273_MODE_TX)
+ r = wl1273_fm_write_cmd(core, WL1273_PUPD_SET,
+ WL1273_PUPD_SET_RETENTION);
+ else
+ r = -EINVAL;
+
+ if (r) {
+ dev_err(&core->i2c_dev->dev,
+ "%s: POWER_SET fails: %d\n", __func__, r);
+ goto out;
+ }
+
+out:
+ if (pdata->disable)
+ pdata->disable();
+
+ dev_dbg(&core->i2c_dev->dev, "Back to reset\n");
+
+ return r;
+}
+
+static int wl1273_fm_start(struct wl1273_core *core, int new_mode)
+{
+ struct i2c_client *client = core->i2c_dev;
+ struct wl1273_fm_platform_data *pdata =
+ client->dev.platform_data;
+ int r = -1;
+ u16 val;
+
+ if (pdata->enable) {
+ pdata->enable();
+ msleep(250);
+ }
+
+ if (new_mode == WL1273_MODE_RX) {
+ /* ignore if this fails */
+ r = wl1273_fm_write_cmd(core, WL1273_POWER_SET,
+ WL1273_POWER_SET_FM);
+ if (r)
+ msleep(100);
+
+ r = wl1273_fm_write_cmd(core, WL1273_POWER_SET,
+ WL1273_POWER_SET_FM);
+ if (r) {
+ dev_err(&client->dev, "%s: POWER_SET fails.\n",
+ __func__);
+ goto fail;
+ }
+
+ /* rds buffer configuration */
+ core->wr_index = 0;
+ core->rd_index = 0;
+
+ } else if (new_mode == WL1273_MODE_TX) {
+ /* ignore if this fails */
+ r = wl1273_fm_write_cmd(core, WL1273_PUPD_SET,
+ WL1273_PUPD_SET_ON);
+ if (r)
+ msleep(100);
+
+ r = wl1273_fm_write_cmd(core, WL1273_PUPD_SET,
+ WL1273_PUPD_SET_ON);
+ if (r) {
+ dev_err(&client->dev, "%s: PUPD_SET fails.\n",
+ __func__);
+ goto fail;
+ }
+
+ } else {
+ dev_warn(&client->dev, "%s: Illegal mode.\n", __func__);
+ }
+
+ if (core->mode == WL1273_MODE_OFF) {
+ dev_dbg(&core->i2c_dev->dev, "Out of reset\n");
+
+ r = wl1273_fm_upload_firmware_patch(core);
+ if (r)
+ dev_warn(&client->dev, "Firmware upload failed.\n");
+ }
+
+ r = wl1273_fm_read_reg(core, WL1273_ASIC_ID_GET, &val);
+ if (r)
+ dev_err(&client->dev, "%s: WL1273_ASIC_ID_GET fails.\n",
+ __func__);
+ else
+ dev_dbg(&client->dev, "%s: ASIC ID: 0x%04x\n", __func__, val);
+
+ r = wl1273_fm_read_reg(core, WL1273_ASIC_VER_GET, &val);
+ if (r)
+ dev_err(&client->dev, "%s: WL1273_ASIC_VER_GET fails.\n",
+ __func__);
+ else
+ dev_dbg(&client->dev, "%s: ASIC Version: 0x%04x\n", __func__,
+ val);
+
+ r = wl1273_fm_read_reg(core, WL1273_FIRM_VER_GET, &val);
+ if (r)
+ dev_err(&client->dev, "%s: WL1273_FIRM_VER_GET fails.\n",
+ __func__);
+ else
+ dev_dbg(&client->dev, "%s: FW version: %d(0x%04x)\n", __func__,
+ val, val);
+
+ r = wl1273_fm_read_reg(core, WL1273_INT_MASK_SET, &val);
+ if (r)
+ goto fail;
+
+ dev_dbg(&client->dev, "%s: Irq mask: 0x%04x\n", __func__, val);
+
+ return 0;
+fail:
+ if (pdata->disable)
+ pdata->disable();
+
+ dev_dbg(&client->dev, "%s: return: %d\n", __func__, r);
+ return r;
+}
+
+/**
+ * wl1273_fm_get_tx_rds() - Get the currect TX RDS mode.
+ * @core: A pointer to the device structure.
+ *
+ * Possible return values are: WL1273_RDS_TX_OFF and WL1273_RDS_TX_ON.
+ */
+int wl1273_fm_get_tx_rds(struct wl1273_core *core)
+{
+ return core->rds_tx_mode;
+}
+EXPORT_SYMBOL(wl1273_fm_get_tx_rds);
+
+/**
+ * wl1273_fm_set_tx_rds() - Get the currect TX RDS mode.
+ * @core: A pointer to the device structure.
+ * @new_mode: Set the mode to new_mode.
+ *
+ * Possible values for new_mode are WL1273_RDS_TX_OFF, WL1273_RDS_TX_ON
+ * and WL1273_RDS_TX_RESET. WL1273_RDS_TX_RESET causes the RDS subsystem to
+ * reset but doesn't actually change the mode.
+ */
+int wl1273_fm_set_tx_rds(struct wl1273_core *core, unsigned int new_mode)
+{
+ int r = 0;
+ struct i2c_client *client = core->i2c_dev;
+
+ if (core->mode == WL1273_MODE_OFF ||
+ core->mode == WL1273_MODE_SUSPENDED)
+ return -EPERM;
+
+ mutex_lock(&core->lock);
+
+ switch (new_mode) {
+ case WL1273_RDS_TX_OFF:
+ r = wl1273_fm_write_cmd(core, WL1273_RDS_DATA_ENB, 0);
+ core->rds_tx_mode = WL1273_RDS_TX_OFF;
+ break;
+
+ case WL1273_RDS_TX_ON:
+ r = wl1273_fm_write_cmd(core, WL1273_RDS_DATA_ENB, 1);
+ core->rds_tx_mode = WL1273_RDS_TX_ON;
+ break;
+
+ case WL1273_RDS_TX_RESET:
+ r = wl1273_fm_write_cmd(core, WL1273_RDS_CNTRL_SET, 1);
+ break;
+
+ default:
+ dev_err(&client->dev, "%s: Unknown mode: %d\n", __func__,
+ new_mode);
+ break;
+ }
+
+ mutex_unlock(&core->lock);
+ return r;
+}
+EXPORT_SYMBOL(wl1273_fm_set_tx_rds);
+
+/**
+ * wl1273_fm_set_mode() - Set the mode of the device.
+ * @core: A pointer to the device struct.
+ * @mode: The new mode.
+ *
+ * The modes that can be used are WL1273_MODE_RX, WL1273_MODE_TX and
+ * WL1273_MODE_OFF.
+ */
+int wl1273_fm_set_mode(struct wl1273_core *core, int mode)
+{
+ int r;
+ int old_mode;
+
+ dev_dbg(&core->i2c_dev->dev, "%s\n", __func__);
+
+ if (core->mode == mode)
+ return 0;
+
+ mutex_lock(&core->lock);
+ old_mode = core->mode;
+
+ switch (mode) {
+ case WL1273_MODE_RX:
+ case WL1273_MODE_TX:
+ r = wl1273_fm_start(core, mode);
+ if (r) {
+ dev_err(&core->i2c_dev->dev, "%s: Cannot start.\n",
+ __func__);
+ wl1273_fm_stop(core);
+ core->mode = old_mode ;
+ goto out;
+ } else {
+ core->mode = mode;
+ r = wl1273_fm_set_audio(core, core->audio_mode);
+ if (r)
+ dev_err(&core->i2c_dev->dev,
+ "Cannot set audio mode.\n");
+ }
+
+ r = wl1273_fm_write_cmd(core, WL1273_INT_MASK_SET,
+ core->irq_flags);
+ if (r) {
+ dev_err(&core->i2c_dev->dev,
+ "INT_MASK_SET fails.\n");
+ goto out;
+ }
+
+ /* remember previous frequencies */
+ if (mode == WL1273_MODE_RX) {
+ r = wl1273_fm_set_rx_freq(core, core->rx_frequency);
+ if (r) {
+ dev_err(&core->i2c_dev->dev,
+ "set freq fails: %d.\n", r);
+ goto out;
+ }
+ } else {
+ r = wl1273_fm_set_tx_freq(core, core->tx_frequency);
+ if (r) {
+ dev_err(&core->i2c_dev->dev,
+ "set freq fails: %d.\n", r);
+ goto out;
+ }
+ }
+
+ break;
+
+ case WL1273_MODE_OFF:
+ r = wl1273_fm_stop(core);
+ if (r) {
+ dev_err(&core->i2c_dev->dev,
+ "%s: Off fails: %d\n", __func__, r);
+ core->mode = old_mode;
+ } else {
+ core->mode = WL1273_MODE_OFF;
+ }
+ break;
+
+ case WL1273_MODE_SUSPENDED:
+ r = wl1273_fm_suspend(core);
+ if (r) {
+ dev_err(&core->i2c_dev->dev,
+ "%s: Suspend fails: %d\n", __func__, r);
+ core->mode = old_mode;
+
+ } else {
+ core->mode = WL1273_MODE_SUSPENDED;
+ }
+ break;
+
+ default:
+ dev_err(&core->i2c_dev->dev, "%s: Unknown mode: %d\n",
+ __func__, mode);
+ r = -EINVAL;
+ break;
+ }
+
+out:
+ mutex_unlock(&core->lock);
+
+ return r;
+}
+EXPORT_SYMBOL(wl1273_fm_set_mode);
+
+/**
+ * wl1273_fm_get_mode() - Returns the current device mode.
+ * @core: A pointer to the device struct.
+ */
+unsigned int wl1273_fm_get_mode(struct wl1273_core *core)
+{
+ return core->mode;
+}
+EXPORT_SYMBOL(wl1273_fm_get_mode);
+
+int wl1273_fm_set_i2s_mode(struct wl1273_core *core, int rate, int width)
+{
+ struct device *dev = &core->i2c_dev->dev;
+ int r = 0;
+ u16 mode;
+
+ dev_dbg(dev, "rate: %d\n", rate);
+ dev_dbg(dev, "width: %d\n", width);
+
+ mutex_lock(&core->lock);
+
+ mode = core->i2s_mode & ~WL1273_IS2_WIDTH & ~WL1273_IS2_RATE;
+
+ switch (rate) {
+ case 48000:
+ mode |= WL1273_IS2_RATE_48K;
+ break;
+ case 44100:
+ mode |= WL1273_IS2_RATE_44_1K;
+ break;
+ case 32000:
+ mode |= WL1273_IS2_RATE_32K;
+ break;
+ case 22050:
+ mode |= WL1273_IS2_RATE_22_05K;
+ break;
+ case 16000:
+ mode |= WL1273_IS2_RATE_16K;
+ break;
+ case 12000:
+ mode |= WL1273_IS2_RATE_12K;
+ break;
+ case 11025:
+ mode |= WL1273_IS2_RATE_11_025;
+ break;
+ case 8000:
+ mode |= WL1273_IS2_RATE_8K;
+ break;
+ default:
+ dev_err(dev, "Sampling rate: %d not supported\n", rate);
+ r = -EINVAL;
+ goto out;
+ }
+
+ switch (width) {
+ case 16:
+ mode |= WL1273_IS2_WIDTH_32;
+ break;
+ case 20:
+ mode |= WL1273_IS2_WIDTH_40;
+ break;
+ case 24:
+ mode |= WL1273_IS2_WIDTH_48;
+ break;
+ case 25:
+ mode |= WL1273_IS2_WIDTH_50;
+ break;
+ case 30:
+ mode |= WL1273_IS2_WIDTH_60;
+ break;
+ case 32:
+ mode |= WL1273_IS2_WIDTH_64;
+ break;
+ case 40:
+ mode |= WL1273_IS2_WIDTH_80;
+ break;
+ case 48:
+ mode |= WL1273_IS2_WIDTH_96;
+ break;
+ case 64:
+ mode |= WL1273_IS2_WIDTH_128;
+ break;
+ default:
+ dev_err(dev, "Data width: %d not supported\n", width);
+ r = -EINVAL;
+ goto out;
+ }
+
+ dev_dbg(dev, "WL1273_I2S_DEF_MODE: 0x%04x\n", WL1273_I2S_DEF_MODE);
+ dev_dbg(dev, "core->i2s_mode: 0x%04x\n", core->i2s_mode);
+ dev_dbg(dev, "mode: 0x%04x\n", mode);
+
+ if (core->i2s_mode != mode) {
+ r = wl1273_fm_write_cmd(core, WL1273_I2S_MODE_CONFIG_SET,
+ mode);
+ if (!r)
+ core->i2s_mode = mode;
+
+ r = wl1273_fm_write_cmd(core, WL1273_AUDIO_ENABLE,
+ WL1273_AUDIO_ENABLE_I2S);
+ if (r)
+ goto out;
+ }
+out:
+ mutex_unlock(&core->lock);
+
+ return r;
+}
+EXPORT_SYMBOL(wl1273_fm_set_i2s_mode);
+
+int wl1273_fm_set_channel_number(struct wl1273_core *core, int channel_number)
+{
+ struct i2c_client *client = core->i2c_dev;
+ struct device *dev = &client->dev;
+ int r = 0;
+
+ dev_dbg(dev, "%s\n", __func__);
+
+ mutex_lock(&core->lock);
+
+ if (core->channel_number == channel_number)
+ goto out;
+
+ if (channel_number == 1 && core->mode == WL1273_MODE_RX)
+ r = wl1273_fm_write_cmd(core, WL1273_MOST_MODE_SET,
+ WL1273_RX_MONO);
+ else if (channel_number == 1 && core->mode == WL1273_MODE_TX)
+ r = wl1273_fm_write_cmd(core, WL1273_MONO_SET,
+ WL1273_TX_MONO);
+ else if (channel_number == 2 && core->mode == WL1273_MODE_RX)
+ r = wl1273_fm_write_cmd(core, WL1273_MOST_MODE_SET,
+ WL1273_RX_STEREO);
+ else if (channel_number == 2 && core->mode == WL1273_MODE_TX)
+ r = wl1273_fm_write_cmd(core, WL1273_MONO_SET,
+ WL1273_TX_STEREO);
+ else
+ r = -EINVAL;
+out:
+ mutex_unlock(&core->lock);
+
+ return r;
+}
+EXPORT_SYMBOL(wl1273_fm_set_channel_number);
+
+static struct i2c_device_id wl1273_driver_id_table[] = {
+ { WL1273_FM_DRIVER_NAME, 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wl1273_driver_id_table);
+
+static int wl1273_core_remove(struct i2c_client *client)
+{
+ struct wl1273_core *core = i2c_get_clientdata(client);
+ struct wl1273_fm_platform_data *pdata =
+ client->dev.platform_data;
+
+ dev_dbg(&client->dev, "%s\n", __func__);
+
+ mfd_remove_devices(&client->dev);
+ i2c_set_clientdata(client, core);
+
+ free_irq(client->irq, core);
+ pdata->free_resources();
+
+ kfree(core->buffer);
+ kfree(core);
+
+ return 0;
+}
+
+static int __devinit wl1273_core_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct wl1273_fm_platform_data *pdata = client->dev.platform_data;
+ int r = 0;
+ struct wl1273_core *core;
+ int children = 0;
+
+ dev_dbg(&client->dev, "%s\n", __func__);
+
+ if (!pdata) {
+ dev_err(&client->dev, "No platform data.\n");
+ return -EINVAL;
+ }
+
+ core = kzalloc(sizeof(*core), GFP_KERNEL);
+ if (!core)
+ return -ENOMEM;
+
+ /* RDS buffer allocation */
+ core->buf_size = rds_buf * 3;
+ core->buffer = kmalloc(core->buf_size, GFP_KERNEL);
+ if (!core->buffer) {
+ dev_err(&client->dev,
+ "Cannot allocate memory for RDS buffer.\n");
+ r = -ENOMEM;
+ goto err_kmalloc;
+ }
+
+ core->irq_flags = WL1273_IRQ_MASK;
+ core->i2c_dev = client;
+ core->rds_tx_mode = WL1273_RDS_TX_OFF;
+ core->mode = WL1273_MODE_OFF;
+ core->tx_power = 4;
+ core->audio_mode = WL1273_AUDIO_ANALOG;
+ core->region = radio_region;
+ core->regions = regions;
+ core->i2s_mode = WL1273_I2S_DEF_MODE;
+ core->channel_number = 2;
+ core->search_level = 7;
+
+ core->rx_frequency = regions[core->region].bottom_frequency;
+ core->tx_frequency = regions[core->region].top_frequency;
+
+ dev_dbg(&client->dev, "radio_region: %d\n", radio_region);
+
+ mutex_init(&core->lock);
+
+ pdata = client->dev.platform_data;
+ if (pdata) {
+ r = pdata->request_resources(client);
+ if (r) {
+ dev_err(&client->dev, WL1273_FM_DRIVER_NAME
+ ": Cannot get platform data\n");
+ goto err_new_mixer;
+ }
+
+ r = request_threaded_irq(client->irq, NULL,
+ wl1273_fm_irq_thread_handler,
+ IRQF_ONESHOT | IRQF_TRIGGER_FALLING,
+ "wl1273-fm", core);
+ if (r < 0) {
+ dev_err(&client->dev, WL1273_FM_DRIVER_NAME
+ ": Unable to register IRQ handler\n");
+ goto err_request_irq;
+ }
+ core->allowed_modes = pdata->modes;
+ } else {
+ dev_err(&client->dev, WL1273_FM_DRIVER_NAME ": Core WL1273 IRQ"
+ " not configured");
+ r = -EINVAL;
+ goto err_new_mixer;
+ }
+
+ init_completion(&core->busy);
+ init_waitqueue_head(&core->read_queue);
+
+ i2c_set_clientdata(client, core);
+
+ if (pdata->children & WL1273_RADIO_CHILD) {
+ struct mfd_cell *cell = &core->cells[children];
+ dev_dbg(&client->dev, "%s: Have V4L2.\n", __func__);
+ cell->name = "wl1273_fm_radio";
+ cell->platform_data = &core;
+ cell->data_size = sizeof(core);
+ children++;
+ }
+
+ if (pdata->children & WL1273_CODEC_CHILD) {
+ struct mfd_cell *cell = &core->cells[children];
+ dev_dbg(&client->dev, "%s: Have codec.\n", __func__);
+ cell->name = "wl1273_codec_audio";
+ cell->platform_data = &core;
+ cell->data_size = sizeof(core);
+ children++;
+ }
+
+ if (children) {
+ dev_dbg(&client->dev, "%s: Have children.\n", __func__);
+ r = mfd_add_devices(&client->dev, -1, core->cells,
+ children, NULL, 0);
+ } else {
+ dev_err(&client->dev, "No platform data found for children.\n");
+ r = -ENODEV;
+ }
+
+ if (!r)
+ return 0;
+
+ i2c_set_clientdata(client, NULL);
+ kfree(core);
+ free_irq(client->irq, core);
+err_request_irq:
+ pdata->free_resources();
+err_new_mixer:
+ kfree(core->buffer);
+err_kmalloc:
+ kfree(core);
+ dev_dbg(&client->dev, "%s\n", __func__);
+
+ return r;
+}
+
+static struct i2c_driver wl1273_core_driver = {
+ .driver = {
+ .name = WL1273_FM_DRIVER_NAME,
+ },
+ .probe = wl1273_core_probe,
+ .id_table = wl1273_driver_id_table,
+ .remove = __devexit_p(wl1273_core_remove),
+};
+
+static int __init wl1273_core_init(void)
+{
+ int r;
+
+ r = i2c_add_driver(&wl1273_core_driver);
+ if (r) {
+ pr_err(WL1273_FM_DRIVER_NAME
+ ": driver registration failed\n");
+ return r;
+ }
+
+ return 0;
+}
+
+static void __exit wl1273_core_exit(void)
+{
+ flush_scheduled_work();
+
+ i2c_del_driver(&wl1273_core_driver);
+}
+late_initcall(wl1273_core_init);
+module_exit(wl1273_core_exit);
+
+MODULE_AUTHOR("Matti Aaltonen <matti.j.aaltonen@xxxxxxxxx>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/wl1273-core.h b/include/linux/mfd/wl1273-core.h
new file mode 100644
index 0000000..c82c01c
--- /dev/null
+++ b/include/linux/mfd/wl1273-core.h
@@ -0,0 +1,265 @@
+/*
+ * include/media/radio/radio-wl1273.h
+ *
+ * Some definitions for the wl1273 radio receiver/transmitter chip.
+ *
+ * Copyright (C) Nokia Corporation
+ * Author: Matti J. Aaltonen <matti.j.aaltonen@xxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#ifndef RADIO_WL1273_H
+#define RADIO_WL1273_H
+
+#include <linux/i2c.h>
+#include <linux/mfd/core.h>
+
+
+#define WL1273_FM_DRIVER_NAME "wl1273-fm"
+#define RX71_FM_I2C_ADDR 0x22
+
+#define WL1273_STEREO_GET 0
+#define WL1273_RSSI_LVL_GET 1
+#define WL1273_IF_COUNT_GET 2
+#define WL1273_FLAG_GET 3
+#define WL1273_RDS_SYNC_GET 4
+#define WL1273_RDS_DATA_GET 5
+#define WL1273_FREQ_SET 10
+#define WL1273_AF_FREQ_SET 11
+#define WL1273_MOST_MODE_SET 12
+#define WL1273_MOST_BLEND_SET 13
+#define WL1273_DEMPH_MODE_SET 14
+#define WL1273_SEARCH_LVL_SET 15
+#define WL1273_BAND_SET 16
+#define WL1273_MUTE_STATUS_SET 17
+#define WL1273_RDS_PAUSE_LVL_SET 18
+#define WL1273_RDS_PAUSE_DUR_SET 19
+#define WL1273_RDS_MEM_SET 20
+#define WL1273_RDS_BLK_B_SET 21
+#define WL1273_RDS_MSK_B_SET 22
+#define WL1273_RDS_PI_MASK_SET 23
+#define WL1273_RDS_PI_SET 24
+#define WL1273_RDS_SYSTEM_SET 25
+#define WL1273_INT_MASK_SET 26
+#define WL1273_SEARCH_DIR_SET 27
+#define WL1273_VOLUME_SET 28
+#define WL1273_AUDIO_ENABLE 29
+#define WL1273_PCM_MODE_SET 30
+#define WL1273_I2S_MODE_CONFIG_SET 31
+#define WL1273_POWER_SET 32
+#define WL1273_INTX_CONFIG_SET 33
+#define WL1273_PULL_EN_SET 34
+#define WL1273_HILO_SET 35
+#define WL1273_SWITCH2FREF 36
+#define WL1273_FREQ_DRIFT_REPORT 37
+
+#define WL1273_PCE_GET 40
+#define WL1273_FIRM_VER_GET 41
+#define WL1273_ASIC_VER_GET 42
+#define WL1273_ASIC_ID_GET 43
+#define WL1273_MAN_ID_GET 44
+#define WL1273_TUNER_MODE_SET 45
+#define WL1273_STOP_SEARCH 46
+#define WL1273_RDS_CNTRL_SET 47
+
+#define WL1273_WRITE_HARDWARE_REG 100
+#define WL1273_CODE_DOWNLOAD 101
+#define WL1273_RESET 102
+
+#define WL1273_FM_POWER_MODE 254
+#define WL1273_FM_INTERRUPT 255
+
+/* Transmitter API */
+
+#define WL1273_CHANL_SET 55
+#define WL1273_CHANL_BW_SET 56
+#define WL1273_REF_SET 57
+#define WL1273_POWER_ENB_SET 90
+#define WL1273_POWER_ATT_SET 58
+#define WL1273_POWER_LEV_SET 59
+#define WL1273_AUDIO_DEV_SET 60
+#define WL1273_PILOT_DEV_SET 61
+#define WL1273_RDS_DEV_SET 62
+#define WL1273_PUPD_SET 91
+#define WL1273_AUDIO_IO_SET 63
+#define WL1273_PREMPH_SET 64
+#define WL1273_MONO_SET 66
+#define WL1273_MUTE 92
+#define WL1273_MPX_LMT_ENABLE 67
+#define WL1273_PI_SET 93
+#define WL1273_ECC_SET 69
+#define WL1273_PTY 70
+#define WL1273_AF 71
+#define WL1273_DISPLAY_MODE 74
+#define WL1273_RDS_REP_SET 77
+#define WL1273_RDS_CONFIG_DATA_SET 98
+#define WL1273_RDS_DATA_SET 99
+#define WL1273_RDS_DATA_ENB 94
+#define WL1273_TA_SET 78
+#define WL1273_TP_SET 79
+#define WL1273_DI_SET 80
+#define WL1273_MS_SET 81
+#define WL1273_PS_SCROLL_SPEED 82
+#define WL1273_TX_AUDIO_LEVEL_TEST 96
+#define WL1273_TX_AUDIO_LEVEL_TEST_THRESHOLD 73
+#define WL1273_TX_AUDIO_INPUT_LEVEL_RANGE_SET 54
+#define WL1273_RX_ANTENNA_SELECT 87
+#define WL1273_I2C_DEV_ADDR_SET 86
+#define WL1273_REF_ERR_CALIB_PARAM_SET 88
+#define WL1273_REF_ERR_CALIB_PERIODICITY_SET 89
+#define WL1273_SOC_INT_TRIGGER 52
+#define WL1273_SOC_AUDIO_PATH_SET 83
+#define WL1273_SOC_PCMI_OVERRIDE 84
+#define WL1273_SOC_I2S_OVERRIDE 85
+#define WL1273_RSSI_BLOCK_SCAN_FREQ_SET 95
+#define WL1273_RSSI_BLOCK_SCAN_START 97
+#define WL1273_RSSI_BLOCK_SCAN_DATA_GET 5
+#define WL1273_READ_FMANT_TUNE_VALUE 104
+
+#define WL1273_RDS_TX_OFF 0
+#define WL1273_RDS_TX_ON 1
+#define WL1273_RDS_TX_RESET 2
+
+#define WL1273_AUDIO_DIGITAL 0
+#define WL1273_AUDIO_ANALOG 1
+
+#define WL1273_SPACING_50KHZ 0
+#define WL1273_SPACING_100KHZ 1
+#define WL1273_SPACING_200KHZ 2
+
+#define WL1273_MODE_RX 0
+#define WL1273_MODE_TX 1
+#define WL1273_MODE_OFF 2
+#define WL1273_MODE_SUSPENDED 3
+
+#define WL1273_RADIO_CHILD (1 << 0)
+#define WL1273_CODEC_CHILD (1 << 1)
+
+#define WL1273_RX_MONO 1
+#define WL1273_RX_STEREO 0
+#define WL1273_TX_MONO 0
+#define WL1273_TX_STEREO 1
+
+/* Private IOCTLS */
+#define WL1273_CID_FM_RADIO_MODE (V4L2_CID_PRIVATE_BASE + 0)
+#define WL1273_CID_FM_AUDIO_MODE (V4L2_CID_PRIVATE_BASE + 1)
+#define WL1273_CID_FM_REGION (V4L2_CID_PRIVATE_BASE + 2)
+#define WL1273_CID_FM_CHAN_SPACING (V4L2_CID_PRIVATE_BASE + 3)
+#define WL1273_CID_FM_RDS_CTRL (V4L2_CID_PRIVATE_BASE + 4)
+#define WL1273_CID_FM_CTUNE_VAL (V4L2_CID_PRIVATE_BASE + 5)
+#define WL1273_CID_TUNE_PREEMPHASIS (V4L2_CID_PRIVATE_BASE + 6)
+#define WL1273_CID_TX_POWER (V4L2_CID_PRIVATE_BASE + 7)
+#define WL1273_CID_SEARCH_LVL (V4L2_CID_PRIVATE_BASE + 8)
+
+#define SCHAR_MIN (-128)
+#define SCHAR_MAX 127
+
+struct region_info {
+ u32 bottom_frequency;
+ u32 top_frequency;
+ u8 region;
+};
+
+struct wl1273_fm_platform_data {
+ int (*request_resources) (struct i2c_client *client);
+ void (*free_resources) (void);
+ void (*enable) (void);
+ void (*disable) (void);
+
+ u8 modes;
+ unsigned int children;
+};
+
+#define WL1273_FM_CORE_CELLS 2
+
+/* Allowed modes */
+#define WL1273_RX_ALLOWED 0x01
+#define WL1273_TX_ALLOWED 0x02
+#define WL1273_RXTX_ALLOWED (WL1273_RX_ALLOWED | WL1273_TX_ALLOWED)
+
+struct wl1273_core {
+ struct mfd_cell cells[WL1273_FM_CORE_CELLS];
+ struct i2c_client *i2c_dev;
+
+ /* driver management */
+ u8 allowed_modes;
+ unsigned int mode;
+ unsigned int preemphasis;
+ unsigned int audio_mode;
+ unsigned int rds_tx_mode;
+ unsigned int tx_power;
+ unsigned int spacing;
+ unsigned int rx_frequency;
+ unsigned int tx_frequency;
+ unsigned int region;
+ unsigned int i2s_mode;
+ unsigned int channel_number;
+ int search_level;
+
+ const struct region_info *regions;
+
+ /* RDS */
+ struct delayed_work work;
+
+ 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;
+};
+
+int wl1273_fm_write_cmd(struct wl1273_core *core, u8 cmd, u16 param);
+int wl1273_fm_write_data(struct wl1273_core *core, u8 *data, u16 len);
+int wl1273_fm_read_reg(struct wl1273_core *core, u8 reg, u16 *value);
+
+int wl1273_fm_rds_on(struct wl1273_core *core);
+int wl1273_fm_rds_off(struct wl1273_core *core);
+int wl1273_fm_get_freq(struct wl1273_core *core);
+int wl1273_fm_set_tx_freq(struct wl1273_core *core, unsigned int freq);
+int wl1273_fm_set_rx_freq(struct wl1273_core *core, unsigned int freq);
+int wl1273_fm_set_seek(struct wl1273_core *core,
+ unsigned int wrap_around,
+ unsigned int seek_upward);
+
+int wl1273_fm_set_channel_number(struct wl1273_core *core, int ch_num);
+int wl1273_fm_set_i2s_mode(struct wl1273_core *core, int rate, int width);
+
+unsigned int wl1273_fm_get_tx_ctune(struct wl1273_core *core);
+unsigned int wl1273_fm_get_audio(struct wl1273_core *core);
+int wl1273_fm_set_audio(struct wl1273_core *core, unsigned int mode);
+unsigned int wl1273_fm_tx_get_spacing(struct wl1273_core *core);
+int wl1273_fm_tx_set_spacing(struct wl1273_core *core, unsigned int spa);
+unsigned int wl1273_fm_get_preemphasis(struct wl1273_core *core);
+int wl1273_fm_set_preemphasis(struct wl1273_core *core, unsigned int emph);
+unsigned int wl1273_fm_get_tx_power(struct wl1273_core *core);
+int wl1273_fm_set_tx_power(struct wl1273_core *core, u16 p);
+unsigned int wl1273_fm_get_mode(struct wl1273_core *core);
+int wl1273_fm_set_mode(struct wl1273_core *core, int mode);
+u8 wl1273_fm_get_region(struct wl1273_core *core);
+int wl1273_fm_set_region(struct wl1273_core *core, unsigned int region);
+int wl1273_fm_get_tx_rds(struct wl1273_core *core);
+int wl1273_fm_set_tx_rds(struct wl1273_core *core, unsigned int mode);
+int wl1273_fm_get_search_level(struct wl1273_core *core);
+int wl1273_fm_set_search_level(struct wl1273_core *core, s16 level);
+
+#endif /* ifndef RADIO_WL1273_H */
--
1.6.1.3
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