V4L/DVB (3275): Split msp3400.c into msp3400-driver.c and msp3400-kthreads.c

- Split msp3400.c into msp3400-driver.c and msp3400-kthreads.c.
- Removed experimental DFPREG ioctls. If this is really needed one
day then it should be implemented using VIDIOC_G/S_REGISTER.
- Added missing BALANCE control info for VIDIOC_QUERYCTRL.
- Still more cleanup, clarified some kernel messages.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>

1 files changed, 1144 insertions, 0 deletions

diff --git a/drivers/media/video/msp3400-driver.c b/drivers/media/video/msp3400-driver.c
new file mode 100644
index 0000000..de79c64
--- /dev/null
+++ b/drivers/media/video/msp3400-driver.c
@@ -0,0 +1,1144 @@
+/*
+ * Programming the mspx4xx sound processor family
+ *
+ * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
+ *
+ * what works and what doesn't:
+ *
+ *  AM-Mono
+ *      Support for Hauppauge cards added (decoding handled by tuner) added by
+ *      Frederic Crozat <fcrozat@mail.dotcom.fr>
+ *
+ *  FM-Mono
+ *      should work. The stereo modes are backward compatible to FM-mono,
+ *      therefore FM-Mono should be allways available.
+ *
+ *  FM-Stereo (B/G, used in germany)
+ *      should work, with autodetect
+ *
+ *  FM-Stereo (satellite)
+ *      should work, no autodetect (i.e. default is mono, but you can
+ *      switch to stereo -- untested)
+ *
+ *  NICAM (B/G, L , used in UK, Scandinavia, Spain and France)
+ *      should work, with autodetect. Support for NICAM was added by
+ *      Pekka Pietikainen <pp@netppl.fi>
+ *
+ * TODO:
+ *   - better SAT support
+ *
+ * 980623  Thomas Sailer (sailer@ife.ee.ethz.ch)
+ *         using soundcore instead of OSS
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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 Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/videodev.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <media/audiochip.h>
+#include <linux/kthread.h>
+#include <linux/suspend.h>
+#include "msp3400.h"
+
+/* ---------------------------------------------------------------------- */
+
+MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
+MODULE_AUTHOR("Gerd Knorr");
+MODULE_LICENSE("GPL");
+
+/* module parameters */
+static int opmode   = OPMODE_AUTO;
+int debug    = 0;    /* debug output */
+int once     = 0;    /* no continous stereo monitoring */
+int amsound  = 0;    /* hard-wire AM sound at 6.5 Hz (france),
+			       the autoscan seems work well only with FM... */
+int standard = 1;    /* Override auto detect of audio standard, if needed. */
+int dolby    = 0;
+
+int stereo_threshold = 0x190; /* a2 threshold for stereo/bilingual
+					(msp34xxg only) 0x00a0-0x03c0 */
+
+/* read-only */
+module_param(opmode,           int, 0444);
+
+/* read-write */
+module_param(once,             int, 0644);
+module_param(debug,            int, 0644);
+module_param(stereo_threshold, int, 0644);
+module_param(standard,         int, 0644);
+module_param(amsound,          int, 0644);
+module_param(dolby,            int, 0644);
+
+MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
+MODULE_PARM_DESC(once, "No continuous stereo monitoring");
+MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
+MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
+MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
+MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
+MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
+
+/* ---------------------------------------------------------------------- */
+
+/* control subaddress */
+#define I2C_MSP_CONTROL 0x00
+/* demodulator unit subaddress */
+#define I2C_MSP_DEM     0x10
+/* DSP unit subaddress */
+#define I2C_MSP_DSP     0x12
+
+/* Addresses to scan */
+static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
+
+I2C_CLIENT_INSMOD;
+
+
+/* ----------------------------------------------------------------------- */
+/* functions for talking to the MSP3400C Sound processor                   */
+
+int msp_reset(struct i2c_client *client)
+{
+	/* reset and read revision code */
+	static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
+	static u8 reset_on[3]  = { I2C_MSP_CONTROL, 0x00, 0x00 };
+	static u8 write[3]     = { I2C_MSP_DSP + 1, 0x00, 0x1e };
+	u8 read[2];
+	struct i2c_msg reset[2] = {
+		{ client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
+		{ client->addr, I2C_M_IGNORE_NAK, 3, reset_on  },
+	};
+	struct i2c_msg test[2] = {
+		{ client->addr, 0,        3, write },
+		{ client->addr, I2C_M_RD, 2, read  },
+	};
+
+	msp_dbg3("msp_reset\n");
+	if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
+	    i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
+	    i2c_transfer(client->adapter, test, 2) != 2) {
+		msp_err("chip reset failed\n");
+		return -1;
+	}
+	return 0;
+}
+
+static int msp_read(struct i2c_client *client, int dev, int addr)
+{
+	int err, retval;
+	u8 write[3];
+	u8 read[2];
+	struct i2c_msg msgs[2] = {
+		{ client->addr, 0,        3, write },
+		{ client->addr, I2C_M_RD, 2, read  }
+	};
+
+	write[0] = dev + 1;
+	write[1] = addr >> 8;
+	write[2] = addr & 0xff;
+
+	for (err = 0; err < 3; err++) {
+		if (i2c_transfer(client->adapter, msgs, 2) == 2)
+			break;
+		msp_warn("I/O error #%d (read 0x%02x/0x%02x)\n", err,
+		       dev, addr);
+		current->state = TASK_INTERRUPTIBLE;
+		schedule_timeout(msecs_to_jiffies(10));
+	}
+	if (err == 3) {
+		msp_warn("giving up, resetting chip. Sound will go off, sorry folks :-|\n");
+		msp_reset(client);
+		return -1;
+	}
+	retval = read[0] << 8 | read[1];
+	msp_dbg3("msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval);
+	return retval;
+}
+
+int msp_read_dem(struct i2c_client *client, int addr)
+{
+	return msp_read(client, I2C_MSP_DEM, addr);
+}
+
+int msp_read_dsp(struct i2c_client *client, int addr)
+{
+	return msp_read(client, I2C_MSP_DSP, addr);
+}
+
+static int msp_write(struct i2c_client *client, int dev, int addr, int val)
+{
+	int err;
+	u8 buffer[5];
+
+	buffer[0] = dev;
+	buffer[1] = addr >> 8;
+	buffer[2] = addr &  0xff;
+	buffer[3] = val  >> 8;
+	buffer[4] = val  &  0xff;
+
+	msp_dbg3("msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
+	for (err = 0; err < 3; err++) {
+		if (i2c_master_send(client, buffer, 5) == 5)
+			break;
+		msp_warn("I/O error #%d (write 0x%02x/0x%02x)\n", err,
+		       dev, addr);
+		current->state = TASK_INTERRUPTIBLE;
+		schedule_timeout(msecs_to_jiffies(10));
+	}
+	if (err == 3) {
+		msp_warn("giving up, resetting chip. Sound will go off, sorry folks :-|\n");
+		msp_reset(client);
+		return -1;
+	}
+	return 0;
+}
+
+int msp_write_dem(struct i2c_client *client, int addr, int val)
+{
+	return msp_write(client, I2C_MSP_DEM, addr, val);
+}
+
+int msp_write_dsp(struct i2c_client *client, int addr, int val)
+{
+	return msp_write(client, I2C_MSP_DSP, addr, val);
+}
+
+/* ----------------------------------------------------------------------- *
+ * bits  9  8  5 - SCART DSP input Select:
+ *       0  0  0 - SCART 1 to DSP input (reset position)
+ *       0  1  0 - MONO to DSP input
+ *       1  0  0 - SCART 2 to DSP input
+ *       1  1  1 - Mute DSP input
+ *
+ * bits 11 10  6 - SCART 1 Output Select:
+ *       0  0  0 - undefined (reset position)
+ *       0  1  0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
+ *       1  0  0 - MONO input to SCART 1 Output
+ *       1  1  0 - SCART 1 DA to SCART 1 Output
+ *       0  0  1 - SCART 2 DA to SCART 1 Output
+ *       0  1  1 - SCART 1 Input to SCART 1 Output
+ *       1  1  1 - Mute SCART 1 Output
+ *
+ * bits 13 12  7 - SCART 2 Output Select (for devices with 2 Output SCART):
+ *       0  0  0 - SCART 1 DA to SCART 2 Output (reset position)
+ *       0  1  0 - SCART 1 Input to SCART 2 Output
+ *       1  0  0 - MONO input to SCART 2 Output
+ *       0  0  1 - SCART 2 DA to SCART 2 Output
+ *       0  1  1 - SCART 2 Input to SCART 2 Output
+ *       1  1  0 - Mute SCART 2 Output
+ *
+ * Bits 4 to 0 should be zero.
+ * ----------------------------------------------------------------------- */
+
+static int scarts[3][9] = {
+	/* MASK    IN1     IN2     IN1_DA  IN2_DA  IN3     IN4     MONO    MUTE   */
+	/* SCART DSP Input select */
+	{ 0x0320, 0x0000, 0x0200, -1,     -1,     0x0300, 0x0020, 0x0100, 0x0320 },
+	/* SCART1 Output select */
+	{ 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
+	/* SCART2 Output select */
+	{ 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
+};
+
+static char *scart_names[] = {
+	"mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
+};
+
+void msp_set_scart(struct i2c_client *client, int in, int out)
+{
+	struct msp_state *state = i2c_get_clientdata(client);
+
+	state->in_scart=in;
+
+	if (in >= 1 && in <= 8 && out >= 0 && out <= 2) {
+		if (-1 == scarts[out][in])
+			return;
+
+		state->acb &= ~scarts[out][SCART_MASK];
+		state->acb |=  scarts[out][in];
+	} else
+		state->acb = 0xf60; /* Mute Input and SCART 1 Output */
+
+	msp_dbg1("scart switch: %s => %d (ACB=0x%04x)\n",
+						scart_names[in], out, state->acb);
+	msp_write_dsp(client, 0x13, state->acb);
+
+	/* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
+	msp_write_dem(client, 0x40, state->i2s_mode);
+}
+
+void msp_set_mute(struct i2c_client *client)
+{
+	msp_dbg1("mute audio\n");
+	msp_write_dsp(client, 0x0000, 0); /* loudspeaker */
+	msp_write_dsp(client, 0x0006, 0); /* headphones */
+}
+
+void msp_set_audio(struct i2c_client *client)
+{
+	struct msp_state *state = i2c_get_clientdata(client);
+	int val = 0, bal = 0, bass, treble;
+
+	if (!state->muted)
+		val = (state->volume * 0x7f / 65535) << 8;
+	if (val)
+		bal = (state->balance / 256) - 128;
+	bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
+	treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
+
+	msp_dbg1("mute=%s volume=%d balance=%d bass=%d treble=%d\n",
+		state->muted ? "on" : "off", state->volume, state->balance,
+		state->bass, state->treble);
+
+	msp_write_dsp(client, 0x0000, val); /* loudspeaker */
+	msp_write_dsp(client, 0x0006, val); /* headphones */
+	msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
+	msp_write_dsp(client, 0x0001, bal << 8);
+	msp_write_dsp(client, 0x0002, bass); /* loudspeaker */
+	msp_write_dsp(client, 0x0003, treble); /* loudspeaker */
+}
+
+int msp_modus(struct i2c_client *client, int norm)
+{
+	switch (norm) {
+	case VIDEO_MODE_PAL:
+		msp_dbg1("video mode selected to PAL\n");
+
+#if 1
+		/* experimental: not sure this works with all chip versions */
+		return 0x7003;
+#else
+		/* previous value, try this if it breaks ... */
+		return 0x1003;
+#endif
+	case VIDEO_MODE_NTSC:  /* BTSC */
+		msp_dbg1("video mode selected to NTSC\n");
+		return 0x2003;
+	case VIDEO_MODE_SECAM:
+		msp_dbg1("video mode selected to SECAM\n");
+		return 0x0003;
+	case VIDEO_MODE_RADIO:
+		msp_dbg1("video mode selected to Radio\n");
+		return 0x0003;
+	case VIDEO_MODE_AUTO:
+		msp_dbg1("video mode selected to Auto\n");
+		return 0x2003;
+	default:
+		return 0x0003;
+	}
+}
+
+int msp_standard(int norm)
+{
+	switch (norm) {
+	case VIDEO_MODE_PAL:
+		return 1;
+	case VIDEO_MODE_NTSC:  /* BTSC */
+		return 0x0020;
+	case VIDEO_MODE_SECAM:
+		return 1;
+	case VIDEO_MODE_RADIO:
+		return 0x0040;
+	default:
+		return 1;
+	}
+}
+
+/* ------------------------------------------------------------------------ */
+
+
+static void msp_wake_thread(struct i2c_client *client)
+{
+	struct msp_state *state = i2c_get_clientdata(client);
+
+	if (NULL == state->kthread)
+		return;
+	msp_set_mute(client);
+	state->watch_stereo = 0;
+	state->restart = 1;
+	wake_up_interruptible(&state->wq);
+}
+
+int msp_sleep(struct msp_state *state, int timeout)
+{
+	DECLARE_WAITQUEUE(wait, current);
+
+	add_wait_queue(&state->wq, &wait);
+	if (!kthread_should_stop()) {
+		if (timeout < 0) {
+			set_current_state(TASK_INTERRUPTIBLE);
+			schedule();
+		} else {
+			schedule_timeout_interruptible
+						(msecs_to_jiffies(timeout));
+		}
+	}
+
+	remove_wait_queue(&state->wq, &wait);
+	try_to_freeze();
+	return state->restart;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static int msp_mode_v4l2_to_v4l1(int rxsubchans)
+{
+	int mode = 0;
+
+	if (rxsubchans & V4L2_TUNER_SUB_STEREO)
+		mode |= VIDEO_SOUND_STEREO;
+	if (rxsubchans & V4L2_TUNER_SUB_LANG2)
+		mode |= VIDEO_SOUND_LANG2;
+	if (rxsubchans & V4L2_TUNER_SUB_LANG1)
+		mode |= VIDEO_SOUND_LANG1;
+	if (mode == 0)
+		mode |= VIDEO_SOUND_MONO;
+	return mode;
+}
+
+static int msp_mode_v4l1_to_v4l2(int mode)
+{
+	if (mode & VIDEO_SOUND_STEREO)
+		return V4L2_TUNER_MODE_STEREO;
+	if (mode & VIDEO_SOUND_LANG2)
+		return V4L2_TUNER_MODE_LANG2;
+	if (mode & VIDEO_SOUND_LANG1)
+		return V4L2_TUNER_MODE_LANG1;
+	return V4L2_TUNER_MODE_MONO;
+}
+
+static void msp_any_detect_stereo(struct i2c_client *client)
+{
+	struct msp_state *state  = i2c_get_clientdata(client);
+
+	switch (state->opmode) {
+	case OPMODE_MANUAL:
+	case OPMODE_AUTODETECT:
+		autodetect_stereo(client);
+		break;
+	case OPMODE_AUTOSELECT:
+		msp34xxg_detect_stereo(client);
+		break;
+	}
+}
+
+static struct v4l2_queryctrl msp_qctrl[] = {
+	{
+		.id            = V4L2_CID_AUDIO_VOLUME,
+		.name          = "Volume",
+		.minimum       = 0,
+		.maximum       = 65535,
+		.step          = 65535/100,
+		.default_value = 58880,
+		.flags         = 0,
+		.type          = V4L2_CTRL_TYPE_INTEGER,
+	},{
+		.id            = V4L2_CID_AUDIO_BALANCE,
+		.name          = "Balance",
+		.minimum       = 0,
+		.maximum       = 65535,
+		.step          = 65535/100,
+		.default_value = 32768,
+		.flags         = 0,
+		.type          = V4L2_CTRL_TYPE_INTEGER,
+	},{
+		.id            = V4L2_CID_AUDIO_MUTE,
+		.name          = "Mute",
+		.minimum       = 0,
+		.maximum       = 1,
+		.step          = 1,
+		.default_value = 1,
+		.flags         = 0,
+		.type          = V4L2_CTRL_TYPE_BOOLEAN,
+	},{
+		.id            = V4L2_CID_AUDIO_BASS,
+		.name          = "Bass",
+		.minimum       = 0,
+		.maximum       = 65535,
+		.step          = 65535/100,
+		.default_value = 32768,
+		.type          = V4L2_CTRL_TYPE_INTEGER,
+	},{
+		.id            = V4L2_CID_AUDIO_TREBLE,
+		.name          = "Treble",
+		.minimum       = 0,
+		.maximum       = 65535,
+		.step          = 65535/100,
+		.default_value = 32768,
+		.type          = V4L2_CTRL_TYPE_INTEGER,
+	},
+};
+
+
+static void msp_any_set_audmode(struct i2c_client *client, int audmode)
+{
+	struct msp_state *state = i2c_get_clientdata(client);
+
+	switch (state->opmode) {
+	case OPMODE_MANUAL:
+	case OPMODE_AUTODETECT:
+		state->watch_stereo = 0;
+		msp3400c_setstereo(client, audmode);
+		break;
+	case OPMODE_AUTOSELECT:
+		msp34xxg_set_audmode(client, audmode);
+		break;
+	}
+}
+
+static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
+{
+	struct msp_state *state = i2c_get_clientdata(client);
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		ctrl->value = state->muted;
+		break;
+
+	case V4L2_CID_AUDIO_BALANCE:
+		ctrl->value = state->balance;
+		break;
+
+	case V4L2_CID_AUDIO_BASS:
+		ctrl->value = state->bass;
+		break;
+
+	case V4L2_CID_AUDIO_TREBLE:
+		ctrl->value = state->treble;
+		break;
+
+	case V4L2_CID_AUDIO_VOLUME:
+		ctrl->value = state->volume;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
+{
+	struct msp_state *state = i2c_get_clientdata(client);
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		if (ctrl->value < 0 || ctrl->value >= 2)
+			return -ERANGE;
+		state->muted = ctrl->value;
+		break;
+
+	case V4L2_CID_AUDIO_BASS:
+		state->bass = ctrl->value;
+		break;
+
+	case V4L2_CID_AUDIO_TREBLE:
+		state->treble = ctrl->value;
+		break;
+
+	case V4L2_CID_AUDIO_BALANCE:
+		state->balance = ctrl->value;
+		break;
+
+	case V4L2_CID_AUDIO_VOLUME:
+		state->volume = ctrl->value;
+		if (state->volume == 0)
+			state->balance = 32768;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+	msp_set_audio(client);
+	return 0;
+}
+
+static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
+{
+	struct msp_state *state = i2c_get_clientdata(client);
+	u16 *sarg = arg;
+	int scart = 0;
+
+	if (debug >= 2)
+		v4l_i2c_print_ioctl(client, cmd);
+
+	switch (cmd) {
+	case AUDC_SET_INPUT:
+		if (*sarg == state->input)
+			break;
+		state->input = *sarg;
+		switch (*sarg) {
+		case AUDIO_RADIO:
+			/* Hauppauge uses IN2 for the radio */
+			state->mode = MSP_MODE_FM_RADIO;
+			scart       = SCART_IN2;
+			break;
+		case AUDIO_EXTERN_1:
+			/* IN1 is often used for external input ... */
+			state->mode = MSP_MODE_EXTERN;
+			scart       = SCART_IN1;
+			break;
+		case AUDIO_EXTERN_2:
+			/* ... sometimes it is IN2 through ;) */
+			state->mode = MSP_MODE_EXTERN;
+			scart       = SCART_IN2;
+			break;
+		case AUDIO_TUNER:
+			state->mode = -1;
+			break;
+		default:
+			if (*sarg & AUDIO_MUTE)
+				msp_set_scart(client, SCART_MUTE, 0);
+			break;
+		}
+		if (scart) {
+			state->rxsubchans = V4L2_TUNER_SUB_STEREO;
+			state->audmode = V4L2_TUNER_MODE_STEREO;
+			msp_set_scart(client, scart, 0);
+			msp_write_dsp(client, 0x000d, 0x1900);
+			if (state->opmode != OPMODE_AUTOSELECT)
+				msp3400c_setstereo(client, state->audmode);
+		}
+		msp_wake_thread(client);
+		break;
+
+	case AUDC_SET_RADIO:
+		state->norm = VIDEO_MODE_RADIO;
+		msp_dbg1("switching to radio mode\n");
+		state->watch_stereo = 0;
+		switch (state->opmode) {
+		case OPMODE_MANUAL:
+			/* set msp3400 to FM radio mode */
+			msp3400c_setmode(client, MSP_MODE_FM_RADIO);
+			msp3400c_setcarrier(client, MSP_CARRIER(10.7),
+					    MSP_CARRIER(10.7));
+			msp_set_audio(client);
+			break;
+		case OPMODE_AUTODETECT:
+		case OPMODE_AUTOSELECT:
+			/* the thread will do for us */
+			msp_wake_thread(client);
+			break;
+		}
+		break;
+
+	/* --- v4l ioctls --- */
+	/* take care: bttv does userspace copying, we'll get a
+	   kernel pointer here... */
+	case VIDIOCGAUDIO:
+	{
+		struct video_audio *va = arg;
+
+		va->flags |= VIDEO_AUDIO_VOLUME |
+			VIDEO_AUDIO_BASS |
+			VIDEO_AUDIO_TREBLE |
+			VIDEO_AUDIO_MUTABLE;
+		if (state->muted)
+			va->flags |= VIDEO_AUDIO_MUTE;
+
+		if (state->muted)
+			va->flags |= VIDEO_AUDIO_MUTE;
+		va->volume = state->volume;
+		va->balance = state->volume ? state->balance : 32768;
+		va->bass = state->bass;
+		va->treble = state->treble;
+
+		msp_any_detect_stereo(client);
+		va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
+		break;
+	}
+
+	case VIDIOCSAUDIO:
+	{
+		struct video_audio *va = arg;
+
+		state->muted = (va->flags & VIDEO_AUDIO_MUTE);
+		state->volume = va->volume;
+		state->balance = va->balance;
+		state->bass = va->bass;
+		state->treble = va->treble;
+		msp_set_audio(client);
+
+		if (va->mode != 0 && state->norm != VIDEO_MODE_RADIO)
+			msp_any_set_audmode(client, msp_mode_v4l1_to_v4l2(va->mode));
+		break;
+	}
+
+	case VIDIOCSCHAN:
+	{
+		struct video_channel *vc = arg;
+
+		state->norm = vc->norm;
+		msp_wake_thread(client);
+		break;
+	}
+
+	case VIDIOCSFREQ:
+	case VIDIOC_S_FREQUENCY:
+	{
+		/* new channel -- kick audio carrier scan */
+		msp_wake_thread(client);
+		break;
+	}
+
+	/* msp34xx specific */
+	case MSP_SET_MATRIX:
+	{
+		struct msp_matrix *mspm = arg;
+
+		msp_set_scart(client, mspm->input, mspm->output);
+		break;
+	}
+
+	/* --- v4l2 ioctls --- */
+	case VIDIOC_S_STD:
+	{
+		v4l2_std_id *id = arg;
+
+		/*FIXME: use V4L2 mode flags on msp3400 instead of V4L1*/
+		if (*id & V4L2_STD_PAL) {
+			state->norm = VIDEO_MODE_PAL;
+		} else if (*id & V4L2_STD_SECAM) {
+			state->norm = VIDEO_MODE_SECAM;
+		} else {
+			state->norm = VIDEO_MODE_NTSC;
+		}
+
+		msp_wake_thread(client);
+		return 0;
+	}
+
+	case VIDIOC_ENUMINPUT:
+	{
+		struct v4l2_input *i = arg;
+
+		if (i->index != 0)
+			return -EINVAL;
+
+		i->type = V4L2_INPUT_TYPE_TUNER;
+		switch (i->index) {
+		case AUDIO_RADIO:
+			strcpy(i->name, "Radio");
+			break;
+		case AUDIO_EXTERN_1:
+			strcpy(i->name, "Extern 1");
+			break;
+		case AUDIO_EXTERN_2:
+			strcpy(i->name, "Extern 2");
+			break;
+		case AUDIO_TUNER:
+			strcpy(i->name, "Television");
+			break;
+		default:
+			return -EINVAL;
+		}
+		return 0;
+	}
+
+	case VIDIOC_G_AUDIO:
+	{
+		struct v4l2_audio *a = arg;
+
+		memset(a, 0, sizeof(*a));
+
+		switch (a->index) {
+		case AUDIO_RADIO:
+			strcpy(a->name, "Radio");
+			break;
+		case AUDIO_EXTERN_1:
+			strcpy(a->name, "Extern 1");
+			break;
+		case AUDIO_EXTERN_2:
+			strcpy(a->name, "Extern 2");
+			break;
+		case AUDIO_TUNER:
+			strcpy(a->name, "Television");
+			break;
+		default:
+			return -EINVAL;
+		}
+
+		msp_any_detect_stereo(client);
+		if (state->audmode == V4L2_TUNER_MODE_STEREO) {
+			a->capability = V4L2_AUDCAP_STEREO;
+		}
+
+		break;
+	}
+
+	case VIDIOC_S_AUDIO:
+	{
+		struct v4l2_audio *sarg = arg;
+
+		switch (sarg->index) {
+		case AUDIO_RADIO:
+			/* Hauppauge uses IN2 for the radio */
+			state->mode = MSP_MODE_FM_RADIO;
+			scart       = SCART_IN2;
+			break;
+		case AUDIO_EXTERN_1:
+			/* IN1 is often used for external input ... */
+			state->mode = MSP_MODE_EXTERN;
+			scart       = SCART_IN1;
+			break;
+		case AUDIO_EXTERN_2:
+			/* ... sometimes it is IN2 through ;) */
+			state->mode = MSP_MODE_EXTERN;
+			scart       = SCART_IN2;
+			break;
+		case AUDIO_TUNER:
+			state->mode = -1;
+			break;
+		}
+		if (scart) {
+			state->rxsubchans = V4L2_TUNER_SUB_STEREO;
+			state->audmode = V4L2_TUNER_MODE_STEREO;
+			msp_set_scart(client, scart, 0);
+			msp_write_dsp(client, 0x000d, 0x1900);
+		}
+		if (sarg->capability == V4L2_AUDCAP_STEREO) {
+			state->audmode = V4L2_TUNER_MODE_STEREO;
+		} else {
+			state->audmode &= ~V4L2_TUNER_MODE_STEREO;
+		}
+		msp_any_set_audmode(client, state->audmode);
+		msp_wake_thread(client);
+		break;
+	}
+
+	case VIDIOC_G_TUNER:
+	{
+		struct v4l2_tuner *vt = arg;
+
+		msp_any_detect_stereo(client);
+		vt->audmode    = state->audmode;
+		vt->rxsubchans = state->rxsubchans;
+		vt->capability = V4L2_TUNER_CAP_STEREO |
+			V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
+		break;
+	}
+
+	case VIDIOC_S_TUNER:
+	{
+		struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
+
+		/* only set audmode */
+		if (vt->audmode != -1 && vt->audmode != 0)
+			msp_any_set_audmode(client, vt->audmode);
+		break;
+	}
+
+	case VIDIOC_G_AUDOUT:
+	{
+		struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
+		int idx = a->index;
+
+		memset(a, 0, sizeof(*a));
+
+		switch (idx) {
+		case 0:
+			strcpy(a->name, "Scart1 Out");
+			break;
+		case 1:
+			strcpy(a->name, "Scart2 Out");
+			break;
+		case 2:
+			strcpy(a->name, "I2S Out");
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+
+	}
+
+	case VIDIOC_S_AUDOUT:
+	{
+		struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
+
+		if (a->index < 0 || a->index > 2)
+			return -EINVAL;
+
+		msp_dbg1("Setting audio out on msp34xx to input %i\n", a->index);
+		msp_set_scart(client, state->in_scart, a->index + 1);
+
+		break;
+	}
+
+	case VIDIOC_INT_I2S_CLOCK_FREQ:
+	{
+		u32 *a = (u32 *)arg;
+
+		msp_dbg1("Setting I2S speed to %d\n", *a);
+
+		switch (*a) {
+			case 1024000:
+				state->i2s_mode = 0;
+				break;
+			case 2048000:
+				state->i2s_mode = 1;
+				break;
+			default:
+				return -EINVAL;
+		}
+		break;
+	}
+
+	case VIDIOC_QUERYCTRL:
+	{
+		struct v4l2_queryctrl *qc = arg;
+		int i;
+
+		for (i = 0; i < ARRAY_SIZE(msp_qctrl); i++)
+			if (qc->id && qc->id == msp_qctrl[i].id) {
+				memcpy(qc, &msp_qctrl[i], sizeof(*qc));
+				return 0;
+			}
+		return -EINVAL;
+	}
+
+	case VIDIOC_G_CTRL:
+		return msp_get_ctrl(client, arg);
+
+	case VIDIOC_S_CTRL:
+		return msp_set_ctrl(client, arg);
+
+	case VIDIOC_LOG_STATUS:
+		msp_any_detect_stereo(client);
+		msp_info("%s rev1 = 0x%04x rev2 = 0x%04x\n",
+				client->name, state->rev1, state->rev2);
+		msp_info("Audio:  volume %d balance %d bass %d treble %d%s\n",
+				state->volume, state->balance,
+				state->bass, state->treble,
+				state->muted ? " (muted)" : "");
+		msp_info("Mode:   %s (%s%s)\n", msp_standard_mode_name(state->mode),
+			(state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
+			(state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
+		msp_info("ACB:    0x%04x\n", state->acb);
+		break;
+
+	default:
+		/* nothing */
+		break;
+	}
+	return 0;
+}
+
+static int msp_suspend(struct device * dev, pm_message_t state)
+{
+	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+
+	msp_dbg1("suspend\n");
+	msp_reset(client);
+	return 0;
+}
+
+static int msp_resume(struct device * dev)
+{
+	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+
+	msp_dbg1("resume\n");
+	msp_wake_thread(client);
+	return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static struct i2c_driver i2c_driver;
+
+static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
+{
+	struct i2c_client *client;
+	struct msp_state *state;
+	int (*thread_func)(void *data) = NULL;
+
+	client = kmalloc(sizeof(*client), GFP_KERNEL);
+	if (client == NULL)
+		return -ENOMEM;
+	memset(client, 0, sizeof(*client));
+	client->addr = address;
+	client->adapter = adapter;
+	client->driver = &i2c_driver;
+	client->flags = I2C_CLIENT_ALLOW_USE;
+	snprintf(client->name, sizeof(client->name) - 1, "msp3400");
+
+	if (msp_reset(client) == -1) {
+		msp_dbg1("msp3400 not found\n");
+		kfree(client);
+		return -1;
+	}
+
+	state = kmalloc(sizeof(*state), GFP_KERNEL);
+	if (state == NULL) {
+		kfree(client);
+		return -ENOMEM;
+	}
+	i2c_set_clientdata(client, state);
+
+	memset(state, 0, sizeof(*state));
+	state->norm = VIDEO_MODE_NTSC;
+	state->volume = 58880;	/* 0db gain */
+	state->balance = 32768;	/* 0db gain */
+	state->bass = 32768;
+	state->treble = 32768;
+	state->input = -1;
+	state->muted = 0;
+	state->i2s_mode = 0;
+	init_waitqueue_head(&state->wq);
+
+	state->rev1 = msp_read_dsp(client, 0x1e);
+	if (state->rev1 != -1)
+		state->rev2 = msp_read_dsp(client, 0x1f);
+	msp_dbg1("rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
+	if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
+		msp_dbg1("not an msp3400 (cannot read chip version)\n");
+		kfree(state);
+		kfree(client);
+		return -1;
+	}
+
+	msp_set_audio(client);
+
+	snprintf(client->name, sizeof(client->name), "MSP%c4%02d%c-%c%d",
+		 ((state->rev1 >> 4) & 0x0f) + '3',
+		 (state->rev2 >> 8) & 0xff,
+		 (state->rev1 & 0x0f) + '@',
+		 ((state->rev1 >> 8) & 0xff) + '@',
+		 state->rev2 & 0x1f);
+
+	state->opmode = opmode;
+	if (state->opmode == OPMODE_AUTO) {
+		/* MSP revision G and up have both autodetect and autoselect */
+		if ((state->rev1 & 0x0f) >= 'G'-'@')
+			state->opmode = OPMODE_AUTOSELECT;
+		/* MSP revision D and up have autodetect */
+		else if ((state->rev1 & 0x0f) >= 'D'-'@')
+			state->opmode = OPMODE_AUTODETECT;
+		else
+			state->opmode = OPMODE_MANUAL;
+	}
+
+	/* hello world :-) */
+	msp_info("%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
+	msp_info("%s ", client->name);
+	if (HAVE_NICAM(state) && HAVE_RADIO(state))
+		printk("supports nicam and radio, ");
+	else if (HAVE_NICAM(state))
+		printk("supports nicam, ");
+	else if (HAVE_RADIO(state))
+		printk("supports radio, ");
+	printk("mode is ");
+
+	/* version-specific initialization */
+	switch (state->opmode) {
+	case OPMODE_MANUAL:
+		printk("manual");
+		thread_func = msp3400c_thread;
+		break;
+	case OPMODE_AUTODETECT:
+		printk("autodetect");
+		thread_func = msp3410d_thread;
+		break;
+	case OPMODE_AUTOSELECT:
+		printk("autodetect and autoselect");
+		thread_func = msp34xxg_thread;
+		break;
+	}
+	printk("\n");
+
+	/* startup control thread if needed */
+	if (thread_func) {
+		state->kthread = kthread_run(thread_func, client, "msp34xx");
+
+		if (state->kthread == NULL)
+			msp_warn("kernel_thread() failed\n");
+		msp_wake_thread(client);
+	}
+
+	/* done */
+	i2c_attach_client(client);
+
+	return 0;
+}
+
+static int msp_probe(struct i2c_adapter *adapter)
+{
+	if (adapter->class & I2C_CLASS_TV_ANALOG)
+		return i2c_probe(adapter, &addr_data, msp_attach);
+	return 0;
+}
+
+static int msp_detach(struct i2c_client *client)
+{
+	struct msp_state *state = i2c_get_clientdata(client);
+	int err;
+
+	/* shutdown control thread */
+	if (state->kthread) {
+		state->restart = 1;
+		kthread_stop(state->kthread);
+	}
+	msp_reset(client);
+
+	err = i2c_detach_client(client);
+	if (err) {
+		return err;
+	}
+
+	kfree(state);
+	kfree(client);
+	return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+/* i2c implementation */
+static struct i2c_driver i2c_driver = {
+	.id             = I2C_DRIVERID_MSP3400,
+	.attach_adapter = msp_probe,
+	.detach_client  = msp_detach,
+	.command        = msp_command,
+	.driver = {
+		.name    = "msp3400",
+		.suspend = msp_suspend,
+		.resume  = msp_resume,
+	},
+	.owner          = THIS_MODULE,
+};
+
+static int __init msp3400_init_module(void)
+{
+	return i2c_add_driver(&i2c_driver);
+}
+
+static void __exit msp3400_cleanup_module(void)
+{
+	i2c_del_driver(&i2c_driver);
+}
+
+module_init(msp3400_init_module);
+module_exit(msp3400_cleanup_module);
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */