[deliverable/linux.git] / drivers / media / video / cx18 / cx18-av-audio.c

/*
 *  cx18 ADEC audio functions
 *
 *  Derived from cx25840-audio.c
 *
 *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
 *
 *  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 "cx18-driver.h"

static int set_audclk_freq(struct cx18 *cx, u32 freq)
{
	struct cx18_av_state *state = &cx->av_state;

	if (freq != 32000 && freq != 44100 && freq != 48000)
		return -EINVAL;

	/* common for all inputs and rates */
	/* SA_MCLK_SEL=1, SA_MCLK_DIV=0x10 */
	cx18_av_write(cx, 0x127, 0x50);

	if (state->aud_input > CX18_AV_AUDIO_SERIAL2) {
		switch (freq) {
		case 32000:
			/* VID_PLL and AUX_PLL */
			cx18_av_write4(cx, 0x108, 0x1006040f);

			/* AUX_PLL_FRAC */
			cx18_av_write4(cx, 0x110, 0x01bb39ee);

			/* src3/4/6_ctl = 0x0801f77f */
			cx18_av_write4(cx, 0x900, 0x0801f77f);
			cx18_av_write4(cx, 0x904, 0x0801f77f);
			cx18_av_write4(cx, 0x90c, 0x0801f77f);
			break;

		case 44100:
			/* VID_PLL and AUX_PLL */
			cx18_av_write4(cx, 0x108, 0x1009040f);

			/* AUX_PLL_FRAC */
			cx18_av_write4(cx, 0x110, 0x00ec6bd6);

			/* src3/4/6_ctl = 0x08016d59 */
			cx18_av_write4(cx, 0x900, 0x08016d59);
			cx18_av_write4(cx, 0x904, 0x08016d59);
			cx18_av_write4(cx, 0x90c, 0x08016d59);
			break;

		case 48000:
			/* VID_PLL and AUX_PLL */
			cx18_av_write4(cx, 0x108, 0x100a040f);

			/* AUX_PLL_FRAC */
			cx18_av_write4(cx, 0x110, 0x0098d6e5);

			/* src3/4/6_ctl = 0x08014faa */
			cx18_av_write4(cx, 0x900, 0x08014faa);
			cx18_av_write4(cx, 0x904, 0x08014faa);
			cx18_av_write4(cx, 0x90c, 0x08014faa);
			break;
		}
	} else {
		switch (freq) {
		case 32000:
			/* VID_PLL and AUX_PLL */
			cx18_av_write4(cx, 0x108, 0x1e08040f);

			/* AUX_PLL_FRAC */
			cx18_av_write4(cx, 0x110, 0x012a0869);

			/* src1_ctl = 0x08010000 */
			cx18_av_write4(cx, 0x8f8, 0x08010000);

			/* src3/4/6_ctl = 0x08020000 */
			cx18_av_write4(cx, 0x900, 0x08020000);
			cx18_av_write4(cx, 0x904, 0x08020000);
			cx18_av_write4(cx, 0x90c, 0x08020000);

			/* SA_MCLK_SEL=1, SA_MCLK_DIV=0x14 */
			cx18_av_write(cx, 0x127, 0x54);
			break;

		case 44100:
			/* VID_PLL and AUX_PLL */
			cx18_av_write4(cx, 0x108, 0x1809040f);

			/* AUX_PLL_FRAC */
			cx18_av_write4(cx, 0x110, 0x00ec6bd6);

			/* src1_ctl = 0x08010000 */
			cx18_av_write4(cx, 0x8f8, 0x080160cd);

			/* src3/4/6_ctl = 0x08020000 */
			cx18_av_write4(cx, 0x900, 0x08017385);
			cx18_av_write4(cx, 0x904, 0x08017385);
			cx18_av_write4(cx, 0x90c, 0x08017385);
			break;

		case 48000:
			/* VID_PLL and AUX_PLL */
			cx18_av_write4(cx, 0x108, 0x180a040f);

			/* AUX_PLL_FRAC */
			cx18_av_write4(cx, 0x110, 0x0098d6e5);

			/* src1_ctl = 0x08010000 */
			cx18_av_write4(cx, 0x8f8, 0x08018000);

			/* src3/4/6_ctl = 0x08020000 */
			cx18_av_write4(cx, 0x900, 0x08015555);
			cx18_av_write4(cx, 0x904, 0x08015555);
			cx18_av_write4(cx, 0x90c, 0x08015555);
			break;
		}
	}

	state->audclk_freq = freq;

	return 0;
}

void cx18_av_audio_set_path(struct cx18 *cx)
{
	struct cx18_av_state *state = &cx->av_state;

	/* stop microcontroller */
	cx18_av_and_or(cx, 0x803, ~0x10, 0);

	/* assert soft reset */
	cx18_av_and_or(cx, 0x810, ~0x1, 0x01);

	/* Mute everything to prevent the PFFT! */
	cx18_av_write(cx, 0x8d3, 0x1f);

	if (state->aud_input <= CX18_AV_AUDIO_SERIAL2) {
		/* Set Path1 to Serial Audio Input */
		cx18_av_write4(cx, 0x8d0, 0x01011012);

		/* The microcontroller should not be started for the
		 * non-tuner inputs: autodetection is specific for
		 * TV audio. */
	} else {
		/* Set Path1 to Analog Demod Main Channel */
		cx18_av_write4(cx, 0x8d0, 0x1f063870);
	}

	set_audclk_freq(cx, state->audclk_freq);

	/* deassert soft reset */
	cx18_av_and_or(cx, 0x810, ~0x1, 0x00);

	if (state->aud_input > CX18_AV_AUDIO_SERIAL2) {
		/* When the microcontroller detects the
		 * audio format, it will unmute the lines */
		cx18_av_and_or(cx, 0x803, ~0x10, 0x10);
	}
}

static int get_volume(struct cx18 *cx)
{
	/* Volume runs +18dB to -96dB in 1/2dB steps
	 * change to fit the msp3400 -114dB to +12dB range */

	/* check PATH1_VOLUME */
	int vol = 228 - cx18_av_read(cx, 0x8d4);
	vol = (vol / 2) + 23;
	return vol << 9;
}

static void set_volume(struct cx18 *cx, int volume)
{
	/* First convert the volume to msp3400 values (0-127) */
	int vol = volume >> 9;
	/* now scale it up to cx18_av values
	 * -114dB to -96dB maps to 0
	 * this should be 19, but in my testing that was 4dB too loud */
	if (vol <= 23)
		vol = 0;
	else
		vol -= 23;

	/* PATH1_VOLUME */
	cx18_av_write(cx, 0x8d4, 228 - (vol * 2));
}

static int get_bass(struct cx18 *cx)
{
	/* bass is 49 steps +12dB to -12dB */

	/* check PATH1_EQ_BASS_VOL */
	int bass = cx18_av_read(cx, 0x8d9) & 0x3f;
	bass = (((48 - bass) * 0xffff) + 47) / 48;
	return bass;
}

static void set_bass(struct cx18 *cx, int bass)
{
	/* PATH1_EQ_BASS_VOL */
	cx18_av_and_or(cx, 0x8d9, ~0x3f, 48 - (bass * 48 / 0xffff));
}

static int get_treble(struct cx18 *cx)
{
	/* treble is 49 steps +12dB to -12dB */

	/* check PATH1_EQ_TREBLE_VOL */
	int treble = cx18_av_read(cx, 0x8db) & 0x3f;
	treble = (((48 - treble) * 0xffff) + 47) / 48;
	return treble;
}

static void set_treble(struct cx18 *cx, int treble)
{
	/* PATH1_EQ_TREBLE_VOL */
	cx18_av_and_or(cx, 0x8db, ~0x3f, 48 - (treble * 48 / 0xffff));
}

static int get_balance(struct cx18 *cx)
{
	/* balance is 7 bit, 0 to -96dB */

	/* check PATH1_BAL_LEVEL */
	int balance = cx18_av_read(cx, 0x8d5) & 0x7f;
	/* check PATH1_BAL_LEFT */
	if ((cx18_av_read(cx, 0x8d5) & 0x80) == 0)
		balance = 0x80 - balance;
	else
		balance = 0x80 + balance;
	return balance << 8;
}

static void set_balance(struct cx18 *cx, int balance)
{
	int bal = balance >> 8;
	if (bal > 0x80) {
		/* PATH1_BAL_LEFT */
		cx18_av_and_or(cx, 0x8d5, 0x7f, 0x80);
		/* PATH1_BAL_LEVEL */
		cx18_av_and_or(cx, 0x8d5, ~0x7f, bal & 0x7f);
	} else {
		/* PATH1_BAL_LEFT */
		cx18_av_and_or(cx, 0x8d5, 0x7f, 0x00);
		/* PATH1_BAL_LEVEL */
		cx18_av_and_or(cx, 0x8d5, ~0x7f, 0x80 - bal);
	}
}

static int get_mute(struct cx18 *cx)
{
	/* check SRC1_MUTE_EN */
	return cx18_av_read(cx, 0x8d3) & 0x2 ? 1 : 0;
}

static void set_mute(struct cx18 *cx, int mute)
{
	struct cx18_av_state *state = &cx->av_state;

	if (state->aud_input > CX18_AV_AUDIO_SERIAL2) {
		/* Must turn off microcontroller in order to mute sound.
		 * Not sure if this is the best method, but it does work.
		 * If the microcontroller is running, then it will undo any
		 * changes to the mute register. */
		if (mute) {
			/* disable microcontroller */
			cx18_av_and_or(cx, 0x803, ~0x10, 0x00);
			cx18_av_write(cx, 0x8d3, 0x1f);
		} else {
			/* enable microcontroller */
			cx18_av_and_or(cx, 0x803, ~0x10, 0x10);
		}
	} else {
		/* SRC1_MUTE_EN */
		cx18_av_and_or(cx, 0x8d3, ~0x2, mute ? 0x02 : 0x00);
	}
}

int cx18_av_audio(struct cx18 *cx, unsigned int cmd, void *arg)
{
	struct cx18_av_state *state = &cx->av_state;
	struct v4l2_control *ctrl = arg;
	int retval;

	switch (cmd) {
	case VIDIOC_INT_AUDIO_CLOCK_FREQ:
		if (state->aud_input > CX18_AV_AUDIO_SERIAL2) {
			cx18_av_and_or(cx, 0x803, ~0x10, 0);
			cx18_av_write(cx, 0x8d3, 0x1f);
		}
		cx18_av_and_or(cx, 0x810, ~0x1, 1);
		retval = set_audclk_freq(cx, *(u32 *)arg);
		cx18_av_and_or(cx, 0x810, ~0x1, 0);
		if (state->aud_input > CX18_AV_AUDIO_SERIAL2)
			cx18_av_and_or(cx, 0x803, ~0x10, 0x10);
		return retval;

	case VIDIOC_G_CTRL:
		switch (ctrl->id) {
		case V4L2_CID_AUDIO_VOLUME:
			ctrl->value = get_volume(cx);
			break;
		case V4L2_CID_AUDIO_BASS:
			ctrl->value = get_bass(cx);
			break;
		case V4L2_CID_AUDIO_TREBLE:
			ctrl->value = get_treble(cx);
			break;
		case V4L2_CID_AUDIO_BALANCE:
			ctrl->value = get_balance(cx);
			break;
		case V4L2_CID_AUDIO_MUTE:
			ctrl->value = get_mute(cx);
			break;
		default:
			return -EINVAL;
		}
		break;

	case VIDIOC_S_CTRL:
		switch (ctrl->id) {
		case V4L2_CID_AUDIO_VOLUME:
			set_volume(cx, ctrl->value);
			break;
		case V4L2_CID_AUDIO_BASS:
			set_bass(cx, ctrl->value);
			break;
		case V4L2_CID_AUDIO_TREBLE:
			set_treble(cx, ctrl->value);
			break;
		case V4L2_CID_AUDIO_BALANCE:
			set_balance(cx, ctrl->value);
			break;
		case V4L2_CID_AUDIO_MUTE:
			set_mute(cx, ctrl->value);
			break;
		default:
			return -EINVAL;
		}
		break;

	default:
		return -EINVAL;
	}

	return 0;
}
Commit	Line	Data
1c1e45d1 HV	1	/*
	2	* cx18 ADEC audio functions
	3	*
	4	* Derived from cx25840-audio.c
	5	*
	6	* Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License
	10	* as published by the Free Software Foundation; either version 2
	11	* of the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	21	* 02110-1301, USA.
	22	*/
	23
	24	#include "cx18-driver.h"
	25
	26	static int set_audclk_freq(struct cx18 *cx, u32 freq)
	27	{
	28	struct cx18_av_state *state = &cx->av_state;
	29
	30	if (freq != 32000 && freq != 44100 && freq != 48000)
	31	return -EINVAL;
	32
	33	/* common for all inputs and rates */
	34	/* SA_MCLK_SEL=1, SA_MCLK_DIV=0x10 */
	35	cx18_av_write(cx, 0x127, 0x50);
	36
81cb727d	37	if (state->aud_input > CX18_AV_AUDIO_SERIAL2) {
1c1e45d1 HV	38	switch (freq) {
	39	case 32000:
	40	/* VID_PLL and AUX_PLL */
	41	cx18_av_write4(cx, 0x108, 0x1006040f);
	42
	43	/* AUX_PLL_FRAC */
	44	cx18_av_write4(cx, 0x110, 0x01bb39ee);
	45
	46	/* src3/4/6_ctl = 0x0801f77f */
	47	cx18_av_write4(cx, 0x900, 0x0801f77f);
	48	cx18_av_write4(cx, 0x904, 0x0801f77f);
	49	cx18_av_write4(cx, 0x90c, 0x0801f77f);
	50	break;
	51
	52	case 44100:
	53	/* VID_PLL and AUX_PLL */
	54	cx18_av_write4(cx, 0x108, 0x1009040f);
	55
	56	/* AUX_PLL_FRAC */
	57	cx18_av_write4(cx, 0x110, 0x00ec6bd6);
	58
	59	/* src3/4/6_ctl = 0x08016d59 */
	60	cx18_av_write4(cx, 0x900, 0x08016d59);
	61	cx18_av_write4(cx, 0x904, 0x08016d59);
	62	cx18_av_write4(cx, 0x90c, 0x08016d59);
	63	break;
	64
	65	case 48000:
	66	/* VID_PLL and AUX_PLL */
	67	cx18_av_write4(cx, 0x108, 0x100a040f);
	68
	69	/* AUX_PLL_FRAC */
	70	cx18_av_write4(cx, 0x110, 0x0098d6e5);
	71
	72	/* src3/4/6_ctl = 0x08014faa */
	73	cx18_av_write4(cx, 0x900, 0x08014faa);
	74	cx18_av_write4(cx, 0x904, 0x08014faa);
	75	cx18_av_write4(cx, 0x90c, 0x08014faa);
	76	break;
	77	}
	78	} else {
	79	switch (freq) {
	80	case 32000:
	81	/* VID_PLL and AUX_PLL */
	82	cx18_av_write4(cx, 0x108, 0x1e08040f);
	83
	84	/* AUX_PLL_FRAC */
	85	cx18_av_write4(cx, 0x110, 0x012a0869);
	86
	87	/* src1_ctl = 0x08010000 */
	88	cx18_av_write4(cx, 0x8f8, 0x08010000);
	89
	90	/* src3/4/6_ctl = 0x08020000 */
	91	cx18_av_write4(cx, 0x900, 0x08020000);
	92	cx18_av_write4(cx, 0x904, 0x08020000);
	93	cx18_av_write4(cx, 0x90c, 0x08020000);
	94
	95	/* SA_MCLK_SEL=1, SA_MCLK_DIV=0x14 */
	96	cx18_av_write(cx, 0x127, 0x54);
	97	break;
	98
	99	case 44100:
	100	/* VID_PLL and AUX_PLL */
	101	cx18_av_write4(cx, 0x108, 0x1809040f);
102
103	/* AUX_PLL_FRAC */
104	cx18_av_write4(cx, 0x110, 0x00ec6bd6);
105
106	/* src1_ctl = 0x08010000 */
107	cx18_av_write4(cx, 0x8f8, 0x080160cd);
108
109	/* src3/4/6_ctl = 0x08020000 */
110	cx18_av_write4(cx, 0x900, 0x08017385);
111	cx18_av_write4(cx, 0x904, 0x08017385);
112	cx18_av_write4(cx, 0x90c, 0x08017385);
113	break;
114
115	case 48000:
116	/* VID_PLL and AUX_PLL */
117	cx18_av_write4(cx, 0x108, 0x180a040f);
118
119	/* AUX_PLL_FRAC */
120	cx18_av_write4(cx, 0x110, 0x0098d6e5);
121
122	/* src1_ctl = 0x08010000 */
123	cx18_av_write4(cx, 0x8f8, 0x08018000);
124
125	/* src3/4/6_ctl = 0x08020000 */
126	cx18_av_write4(cx, 0x900, 0x08015555);
127	cx18_av_write4(cx, 0x904, 0x08015555);
128	cx18_av_write4(cx, 0x90c, 0x08015555);
129	break;
130	}
131	}
132
133	state->audclk_freq = freq;
134
135	return 0;
136	}
137
138	void cx18_av_audio_set_path(struct cx18 *cx)
139	{
140	struct cx18_av_state *state = &cx->av_state;
141
142	/* stop microcontroller */
143	cx18_av_and_or(cx, 0x803, ~0x10, 0);
144
145	/* assert soft reset */
146	cx18_av_and_or(cx, 0x810, ~0x1, 0x01);
147
148	/* Mute everything to prevent the PFFT! */
149	cx18_av_write(cx, 0x8d3, 0x1f);
150
81cb727d	151	if (state->aud_input <= CX18_AV_AUDIO_SERIAL2) {
1c1e45d1 HV	152	/* Set Path1 to Serial Audio Input */
	153	cx18_av_write4(cx, 0x8d0, 0x01011012);
	154
	155	/* The microcontroller should not be started for the
	156	* non-tuner inputs: autodetection is specific for
	157	* TV audio. */
	158	} else {
	159	/* Set Path1 to Analog Demod Main Channel */
	160	cx18_av_write4(cx, 0x8d0, 0x1f063870);
	161	}
	162
	163	set_audclk_freq(cx, state->audclk_freq);
	164
	165	/* deassert soft reset */
	166	cx18_av_and_or(cx, 0x810, ~0x1, 0x00);
	167
81cb727d	168	if (state->aud_input > CX18_AV_AUDIO_SERIAL2) {
1c1e45d1 HV	169	/* When the microcontroller detects the
	170	* audio format, it will unmute the lines */
	171	cx18_av_and_or(cx, 0x803, ~0x10, 0x10);
	172	}
	173	}
	174
	175	static int get_volume(struct cx18 *cx)
	176	{
	177	/* Volume runs +18dB to -96dB in 1/2dB steps
	178	* change to fit the msp3400 -114dB to +12dB range */
	179
	180	/* check PATH1_VOLUME */
	181	int vol = 228 - cx18_av_read(cx, 0x8d4);
	182	vol = (vol / 2) + 23;
	183	return vol << 9;
	184	}
	185
	186	static void set_volume(struct cx18 *cx, int volume)
	187	{
	188	/* First convert the volume to msp3400 values (0-127) */
	189	int vol = volume >> 9;
	190	/* now scale it up to cx18_av values
	191	* -114dB to -96dB maps to 0
	192	* this should be 19, but in my testing that was 4dB too loud */
	193	if (vol <= 23)
	194	vol = 0;
	195	else
	196	vol -= 23;
	197
	198	/* PATH1_VOLUME */
	199	cx18_av_write(cx, 0x8d4, 228 - (vol * 2));
	200	}
	201
	202	static int get_bass(struct cx18 *cx)
	203	{
	204	/* bass is 49 steps +12dB to -12dB */
	205
	206	/* check PATH1_EQ_BASS_VOL */
	207	int bass = cx18_av_read(cx, 0x8d9) & 0x3f;
	208	bass = (((48 - bass) * 0xffff) + 47) / 48;
	209	return bass;
	210	}
	211
	212	static void set_bass(struct cx18 *cx, int bass)
	213	{
	214	/* PATH1_EQ_BASS_VOL */
	215	cx18_av_and_or(cx, 0x8d9, ~0x3f, 48 - (bass * 48 / 0xffff));
	216	}
	217
	218	static int get_treble(struct cx18 *cx)
	219	{
	220	/* treble is 49 steps +12dB to -12dB */
	221
	222	/* check PATH1_EQ_TREBLE_VOL */
	223	int treble = cx18_av_read(cx, 0x8db) & 0x3f;
	224	treble = (((48 - treble) * 0xffff) + 47) / 48;
	225	return treble;
	226	}
	227
	228	static void set_treble(struct cx18 *cx, int treble)
	229	{
	230	/* PATH1_EQ_TREBLE_VOL */
	231	cx18_av_and_or(cx, 0x8db, ~0x3f, 48 - (treble * 48 / 0xffff));
	232	}
233
234	static int get_balance(struct cx18 *cx)
235	{
236	/* balance is 7 bit, 0 to -96dB */
237
238	/* check PATH1_BAL_LEVEL */
239	int balance = cx18_av_read(cx, 0x8d5) & 0x7f;
240	/* check PATH1_BAL_LEFT */
241	if ((cx18_av_read(cx, 0x8d5) & 0x80) == 0)
242	balance = 0x80 - balance;
243	else
244	balance = 0x80 + balance;
245	return balance << 8;
246	}
247
248	static void set_balance(struct cx18 *cx, int balance)
249	{
250	int bal = balance >> 8;
251	if (bal > 0x80) {
252	/* PATH1_BAL_LEFT */
253	cx18_av_and_or(cx, 0x8d5, 0x7f, 0x80);
254	/* PATH1_BAL_LEVEL */
255	cx18_av_and_or(cx, 0x8d5, ~0x7f, bal & 0x7f);
256	} else {
257	/* PATH1_BAL_LEFT */
258	cx18_av_and_or(cx, 0x8d5, 0x7f, 0x00);
259	/* PATH1_BAL_LEVEL */
260	cx18_av_and_or(cx, 0x8d5, ~0x7f, 0x80 - bal);
261	}
262	}
263
264	static int get_mute(struct cx18 *cx)
265	{
266	/* check SRC1_MUTE_EN */
267	return cx18_av_read(cx, 0x8d3) & 0x2 ? 1 : 0;
268	}
269
270	static void set_mute(struct cx18 *cx, int mute)
271	{
272	struct cx18_av_state *state = &cx->av_state;
273
81cb727d	274	if (state->aud_input > CX18_AV_AUDIO_SERIAL2) {
1c1e45d1 HV	275	/* Must turn off microcontroller in order to mute sound.
	276	* Not sure if this is the best method, but it does work.
	277	* If the microcontroller is running, then it will undo any
	278	* changes to the mute register. */
	279	if (mute) {
	280	/* disable microcontroller */
	281	cx18_av_and_or(cx, 0x803, ~0x10, 0x00);
	282	cx18_av_write(cx, 0x8d3, 0x1f);
	283	} else {
	284	/* enable microcontroller */
	285	cx18_av_and_or(cx, 0x803, ~0x10, 0x10);
	286	}
	287	} else {
	288	/* SRC1_MUTE_EN */
	289	cx18_av_and_or(cx, 0x8d3, ~0x2, mute ? 0x02 : 0x00);
	290	}
	291	}
	292
	293	int cx18_av_audio(struct cx18 cx, unsigned int cmd, void arg)
	294	{
	295	struct cx18_av_state *state = &cx->av_state;
	296	struct v4l2_control *ctrl = arg;
	297	int retval;
	298
	299	switch (cmd) {
	300	case VIDIOC_INT_AUDIO_CLOCK_FREQ:
81cb727d	301	if (state->aud_input > CX18_AV_AUDIO_SERIAL2) {
1c1e45d1 HV	302	cx18_av_and_or(cx, 0x803, ~0x10, 0);
	303	cx18_av_write(cx, 0x8d3, 0x1f);
	304	}
	305	cx18_av_and_or(cx, 0x810, ~0x1, 1);
	306	retval = set_audclk_freq(cx, (u32 )arg);
	307	cx18_av_and_or(cx, 0x810, ~0x1, 0);
81cb727d	308	if (state->aud_input > CX18_AV_AUDIO_SERIAL2)
1c1e45d1 HV	309	cx18_av_and_or(cx, 0x803, ~0x10, 0x10);
	310	return retval;
	311
	312	case VIDIOC_G_CTRL:
	313	switch (ctrl->id) {
	314	case V4L2_CID_AUDIO_VOLUME:
	315	ctrl->value = get_volume(cx);
	316	break;
	317	case V4L2_CID_AUDIO_BASS:
	318	ctrl->value = get_bass(cx);
	319	break;
	320	case V4L2_CID_AUDIO_TREBLE:
	321	ctrl->value = get_treble(cx);
	322	break;
	323	case V4L2_CID_AUDIO_BALANCE:
	324	ctrl->value = get_balance(cx);
	325	break;
	326	case V4L2_CID_AUDIO_MUTE:
	327	ctrl->value = get_mute(cx);
	328	break;
	329	default:
	330	return -EINVAL;
	331	}
	332	break;
	333
	334	case VIDIOC_S_CTRL:
	335	switch (ctrl->id) {
	336	case V4L2_CID_AUDIO_VOLUME:
	337	set_volume(cx, ctrl->value);
	338	break;
	339	case V4L2_CID_AUDIO_BASS:
	340	set_bass(cx, ctrl->value);
	341	break;
	342	case V4L2_CID_AUDIO_TREBLE:
	343	set_treble(cx, ctrl->value);
	344	break;
	345	case V4L2_CID_AUDIO_BALANCE:
	346	set_balance(cx, ctrl->value);
	347	break;
	348	case V4L2_CID_AUDIO_MUTE:
	349	set_mute(cx, ctrl->value);
	350	break;
	351	default:
	352	return -EINVAL;
	353	}
	354	break;
	355
	356	default:
	357	return -EINVAL;
	358	}
	359
	360	return 0;
	361	}