Em 30-08-2010 08:38, Matti J. Aaltonen escreveu:
> This is a parent for two child drivers: a V4L2 driver and
> an ALSA codec driver. The MFD part implements I2C communication
> to the device and provides a couple of functions that are called
> from both children.
>
> Signed-off-by: Matti J. Aaltonen <matti.j.aalto...@nokia.com>
> ---
> drivers/mfd/wl1273-core.c | 612
> +++++++++++++++++++++++++++++++++++++++
> include/linux/mfd/wl1273-core.h | 314 ++++++++++++++++++++
> 2 files changed, 926 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/wl1273-core.c b/drivers/mfd/wl1273-core.c
> new file mode 100644
> index 0000000..9fa3850
> --- /dev/null
> +++ b/drivers/mfd/wl1273-core.c
> @@ -0,0 +1,612 @@
> +/*
> + * MFD driver for wl1273 FM radio and audio codec submodules.
> + *
> + * Author: Matti Aaltonen <matti.j.aalto...@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
> + *
> + */
> +
> +#include <linux/delay.h>
> +#include <linux/interrupt.h>
> +#include <linux/mfd/wl1273-core.h>
> +#include <linux/slab.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");
There's no need for a parameter to set the bandwidth.
> +
> +/*
> + * 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*");
Hmm... it would be better to use, instead:
MODULE_PARM_DESC(rds_buf, "Number of RDS buffer entries. Default = 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);
Hmm... why do you need to export a symbol here?
> +
> +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);
Hmm... why do you need to export a symbol here?
> +
> +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);
Hmm... why do you need to export a symbol here?
> +
> +/**
> + * 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);
Hmm... why do you need to export a symbol here?
> +
> +/**
> + * 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);
Hmm... why do you need to export a symbol here?
> +
> +#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);
> +}
Wouldn't be better to just use wl1273_fm_rds() instead of this?
> +
> +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.
> + */
> + usleep_range(10000, 15000);
> +
> + 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;
Why it should be multiplied by a "random"value of 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 = 118;
> + 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;
> + core->stereo = true;
> +
> + 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.aalto...@nokia.com>");
> +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..30a9e9a
> --- /dev/null
> +++ b/include/linux/mfd/wl1273-core.h
> @@ -0,0 +1,314 @@
> +/*
> + * 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.aalto...@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;
> + bool stereo;
> +
> + const struct band_info *bands;
> +
> + /* RDS */
> + unsigned int 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 */
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