new file mode 100644
@@ -0,0 +1,621 @@
+/*
+ * MFD driver for wl1273 FM radio and audio codec submodules.
+ *
+ * Author: Matti Aaltonen <matti.j.aaltonen@nokia.com>
+ *
+ * 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/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_IRQ_MASK (WL1273_FR_EVENT | \
+ WL1273_POW_ENB_EVENT)
+
+static const struct band_info bands[] = {
+ /* USA & Europe */
+ {
+ .bottom_frequency = 87500,
+ .top_frequency = 108000,
+ .band = V4L2_FM_BAND_OTHER,
+ },
+ /* Japan */
+ {
+ .bottom_frequency = 76000,
+ .top_frequency = 90000,
+ .band = V4L2_FM_BAND_JAPAN,
+ },
+};
+
+/*
+ * static unsigned char radio_band - Band
+ *
+ * The bands are 0 == USA-Europe, 1 == Japan. USA-Europe is the default.
+ */
+static unsigned char radio_band;
+module_param(radio_band, byte, 0);
+MODULE_PARM_DESC(radio_band, "Band: 0=USA-Europe, 1=Japan");
+
+/*
+ * 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_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) {
+ 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) {
+ 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) {
+ 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) {
+ 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_set_volume() - Set volume.
+ * @core: A pointer to the device struct.
+ * @volume: The new volume value.
+ */
+int wl1273_fm_set_volume(struct wl1273_core *core, unsigned int volume)
+{
+ u16 val;
+ int r;
+
+ if (volume > WL1273_MAX_VOLUME)
+ return -EINVAL;
+
+ if (core->volume == volume)
+ return 0;
+
+ val = volume;
+ r = wl1273_fm_read_reg(core, WL1273_VOLUME_SET, &val);
+ if (r)
+ return r;
+
+ core->volume = volume;
+ return 0;
+}
+EXPORT_SYMBOL(wl1273_fm_set_volume);
+
+#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_core *core)
+{
+ struct i2c_client *client = core->i2c_dev;
+ struct device *dev = &client->dev;
+ 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 = sizeof(b0)
+ },
+ {
+ .addr = client->addr,
+ .flags = I2C_M_RD,
+ .buf = (u8 *) &rds,
+ .len = sizeof(rds),
+ }
+ };
+ int r;
+
+ if (core->mode != WL1273_MODE_RX)
+ return 0;
+
+ 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);
+ }
+
+ status = rds.block;
+
+ if (!WL1273_FIFO_HAS_DATA(status))
+ break;
+
+ /* fill bits 0-5 */
+ rds.block = 0x07 & 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(&core->buffer[core->wr_index], &rds, 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 (WL1273_FIFO_HAS_DATA(status));
+
+ /* 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 =
+ bands[core->band].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;
+}
+
+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_on = false;
+ core->mode = WL1273_MODE_OFF;
+ core->tx_power = 4;
+ core->audio_mode = WL1273_AUDIO_ANALOG;
+ core->band = radio_band;
+ core->bands = bands;
+ core->number_of_bands = ARRAY_SIZE(bands);
+ core->i2s_mode = WL1273_I2S_DEF_MODE;
+ core->channel_number = 2;
+ core->volume = WL1273_DEFAULT_VOLUME;
+ core->rx_frequency = bands[core->band].bottom_frequency;
+ core->tx_frequency = bands[core->band].top_frequency;
+
+ dev_dbg(&client->dev, "radio_band: %d\n", radio_band);
+
+ 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;
+ }
+ } 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@nokia.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
new file mode 100644
@@ -0,0 +1,313 @@
+/*
+ * 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@nokia.com>
+ *
+ * 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_SCAN_SPACING_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_OFF 0
+#define WL1273_RDS_ON 1
+#define WL1273_RDS_RESET 2
+
+#define WL1273_AUDIO_DIGITAL 0
+#define WL1273_AUDIO_ANALOG 1
+
+#define WL1273_MODE_RX (1 << 0)
+#define WL1273_MODE_TX (1 << 1)
+#define WL1273_MODE_OFF (1 << 2)
+#define WL1273_MODE_SUSPENDED (1 << 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
+
+#define WL1273_MAX_VOLUME 0xffff
+#define WL1273_DEFAULT_VOLUME 0x78b8
+
+/* 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
+
+/* 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)
+
+#define SCHAR_MIN (-128)
+#define SCHAR_MAX 127
+
+#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 TUNER_MODE_STOP_SEARCH 0
+#define TUNER_MODE_PRESET 1
+#define TUNER_MODE_AUTO_SEEK 2
+#define TUNER_MODE_AF 3
+#define TUNER_MODE_AUTO_SEEK_PI 4
+#define TUNER_MODE_AUTO_SEEK_BULK 5
+
+struct band_info {
+ u32 bottom_frequency;
+ u32 top_frequency;
+ u8 band;
+};
+
+struct wl1273_fm_platform_data {
+ int (*request_resources) (struct i2c_client *client);
+ void (*free_resources) (void);
+ void (*enable) (void);
+ void (*disable) (void);
+
+ u8 forbidden_modes;
+ unsigned int children;
+};
+
+#define WL1273_FM_CORE_CELLS 2
+
+struct wl1273_core {
+ struct mfd_cell cells[WL1273_FM_CORE_CELLS];
+ struct i2c_client *i2c_dev;
+
+ u8 forbidden;
+ unsigned int mode;
+ unsigned int preemphasis;
+ unsigned int audio_mode;
+ unsigned int spacing;
+ unsigned int tx_power;
+ unsigned int rx_frequency;
+ unsigned int tx_frequency;
+ unsigned int band;
+ unsigned int i2s_mode;
+ unsigned int channel_number;
+ unsigned int number_of_bands;
+ unsigned int volume;
+
+ const struct band_info *bands;
+
+ /* RDS */
+ bool rds_on;
+ 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_set_audio(struct wl1273_core *core, unsigned int mode);
+int wl1273_fm_set_volume(struct wl1273_core *core, unsigned int volume);
+
+#endif /* ifndef RADIO_WL1273_H */