Hello.
On Wed, 2010-08-18 at 20:14 +0200, ext Pavan Savoy wrote:
> --- On Wed, 7/7/10, Pavan Savoy <pavan_sa...@ti.com> wrote:
> >
> > From: Pavan Savoy <pavan_sa...@ti.com>
> > Subject: Re: [PATCH v4 2/5] MFD: WL1273 FM Radio: MFD driver for the FM
> > radio.
> > To: "Matti J. Aaltonen" <matti.j.aalto...@nokia.com>, "Mauro Carvalho
> > Chehab" <mche...@redhat.com>
> > Cc: linux-media@vger.kernel.org, hverk...@xs4all.nl,
> > eduardo.valen...@nokia.com, "pavan savoy" <pavan_sa...@yahoo.co.in>
> > Date: Wednesday, 7 July, 2010, 10:51 AM
> >
> > --- On Tue, 6/7/10, Mauro Carvalho Chehab <mche...@redhat.com>
> > wrote:
> >
> > > From: Mauro Carvalho Chehab <mche...@redhat.com>
> > > Subject: Re: [PATCH v4 2/5] MFD: WL1273 FM Radio: MFD
> > driver for the FM radio.
> > > To: "Matti J. Aaltonen" <matti.j.aalto...@nokia.com>
> > > Cc: linux-media@vger.kernel.org,
> > hverk...@xs4all.nl,
> > eduardo.valen...@nokia.com
> > > Date: Tuesday, 6 July, 2010, 8:04 AM
> > > Em 04-06-2010 07:34, Matti J.
> > > Aaltonen escreveu:
> > > > 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 a couple of functions that are
> > > called from both
> > > > children.
> >
> > Where can I have a look at the whole code ? As in some
> > local tree, where all codes are put up ?
> > Basically, we have a V4L2 driver for WL128x (using TTY as
> > transport) and plan to push them soon ...
> >
> > This would be a nice input ...
>
> Anywhere I can have a look at the whole code?
> We are trying to push out V4L2 drivers for FM on 128x, and intend to use
> several V4L2 new ioctls which you have defined (_BAND_) being one of them.
>
> Also we plan to push FM Tx of it too.. TX_CLASS from V4L2 has most of the
> ioctls and plan to introduce the rest.
I'm sorry for not answering to you earlier. But I don't have my own
public repository. But to create the whole thing is extremely simple:
just take the current mainline tree and apply my patches on top of it...
Best Regards,
Matti
>
> >
> > > > Signed-off-by: Matti J. Aaltonen <matti.j.aalto...@nokia.com>
> > > > ---
> > > > drivers/mfd/Kconfig
> > > | 6 +
> > > > drivers/mfd/Makefile
> > > | 2 +
> > > > drivers/mfd/wl1273-core.c
> > > | 616
> > > +++++++++++++++++++++++++++++++++++++++
> > > > include/linux/mfd/wl1273-core.h | 326
> > > +++++++++++++++++++++
> > > > 4 files changed, 950 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..5998a94 100644
> > > > --- a/drivers/mfd/Kconfig
> > > > +++ b/drivers/mfd/Kconfig
> > > > @@ -135,6 +135,12 @@ config TWL4030_CODEC
> > > > select MFD_CORE
> > > > default n
> > > >
> > > > +config WL1273_CORE
> > > > + bool
> > > > + 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 78295d6..46e611d 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..6c7dbba
> > > > --- /dev/null
> > > > +++ b/drivers/mfd/wl1273-core.c
> > > > @@ -0,0 +1,616 @@
> > > > +/*
> > > > + * 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
> > > > + *
> > > > + */
> > > > +
> > > > +#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=Japan, 1=USA-Europe.
> > USA-Europe is
> > > the default.
> > > > + */
> > > > +static unsigned char radio_band = 1;
> > > > +module_param(radio_band, byte, 0);
> > > > +MODULE_PARM_DESC(radio_band, "Band: 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_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_RDS_FIFO_EMPTY(status) (!(1
> > > << 6 & 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;
> > > > + struct v4l2_rds_data rds = { 0, 0,
> > > 0 };
> > > > + struct i2c_msg msg[] = {
> > > > + {
> > > > +
> > > .addr = client->addr,
> > > > +
> > > .flags = 0,
> > > > +
> > > .buf = b0,
> > > > +
> > > .len = 1
> > > > + },
> > > > + {
> > > > +
> > > .addr = client->addr,
> > > > +
> > > .flags = I2C_M_RD,
> > > > +
> > > .buf = (u8 *) &rds,
> > > > +
> > > .len = 3
> > > > + }
> > > > + };
> > > > + u8 b0[] = { WL1273_RDS_DATA_GET },
> > > status;
> > > > + u16 val;
> > > > + int r;
> > > > +
> > > > + r = wl1273_fm_read_reg(core,
> > > WL1273_RDS_SYNC_GET, &val);
> > > > + if (r)
> > > > + return r;
> > > > +
> > > > + /* Is RDS decoder synchronized?
> > > */
> > > > + if ((val & 0x01) == 0)
> > > > + 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_RDS_FIFO_EMPTY(status))
> > > > +
> > > break;
> > > > +
> > > > + /* copy RDS
> > > block to internal buffer */
> > > > +
> > > memcpy(&core->buffer[core->wr_index],
> > &rds,
> > > 3);
> > > > +
> > > core->wr_index += 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;
> > > > + } else {
> > > > +
> > > rds.block &= ~V4L2_RDS_BLOCK_ERROR;
> > > > +
> > > rds.block &=
> > > ~V4L2_RDS_BLOCK_CORRECTED;
> > > > + }
> > > > +
> > > > + /* 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_RDS_FIFO_EMPTY(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);
> > >
> > >
> > > msleep on an irq handler? You shouldn't be doing it!
> > You're
> > > not allowed to sleep
> > > during IRQ time. Kernel can panic here. You'll
> > probably
> > > need to defer work and
> > > handle it outside irq time.
> > > > +
> > > > +
> > > 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.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..81c9743
> > > > --- /dev/null
> > > > +++ b/include/linux/mfd/wl1273-core.h
> > > > @@ -0,0 +1,326 @@
> > > > +/*
> > > > + * 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
> > > 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
> > > > +
> > > > +#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)
> > > > +
> > > > +/* Private IOCTL */
> > > > +#define WL1273_CID_FM_BAND
> > > (V4L2_CID_PRIVATE_BASE + 2)
> > > > +
> > > > +#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
> > > > +
> > > > +/* Allowed modes */
> > > > +#define WL1273_RX_ALLOWED 0x01
> > > > +#define WL1273_TX_ALLOWED 0x02
> > > > +#define WL1273_RXTX_ALLOWED
> > > (WL1273_RX_ALLOWED | WL1273_TX_ALLOWED)
> > > > +
> > > > +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 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;
> > > > +
> > > > + u8 allowed_modes;
> > > > + 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 */
> > >
> > > --
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> > "unsubscribe
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> > >
> >
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> >
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