[net-next-2.6.git] / drivers / media / video / ivtv / ivtv-gpio.c

/*
    gpio functions.
    Merging GPIO support into driver:
    Copyright (C) 2004  Chris Kennedy <c@groovy.org>
    Copyright (C) 2005-2007  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "ivtv-driver.h"
#include "ivtv-cards.h"
#include "ivtv-gpio.h"
#include "tuner-xc2028.h"
#include <media/tuner.h>

/*
 * GPIO assignment of Yuan MPG600/MPG160
 *
 *    bit 15  14  13  12 |  11  10   9   8 |   7   6   5   4 |   3   2   1   0
 * OUTPUT         IN1 IN0                                       AM3 AM2 AM1 AM0
 *  INPUT                   DM1         DM0
 *
 *   IN* : Input selection
 *          IN1 IN0
 *           1   1  N/A
 *           1   0  Line
 *           0   1  N/A
 *           0   0  Tuner
 *
 *   AM* : Audio Mode
 *          AM3  0: Normal        1: Mixed(Sub+Main channel)
 *          AM2  0: Subchannel    1: Main channel
 *          AM1  0: Stereo        1: Mono
 *          AM0  0: Normal        1: Mute
 *
 *   DM* : Detected tuner audio Mode
 *          DM1  0: Stereo        1: Mono
 *          DM0  0: Multiplex     1: Normal
 *
 * GPIO Initial Settings
 *           MPG600   MPG160
 *     DIR   0x3080   0x7080
 *  OUTPUT   0x000C   0x400C
 *
 *  Special thanks to Makoto Iguchi <iguchi@tahoo.org> and Mr. Anonymous
 *  for analyzing GPIO of MPG160.
 *
 *****************************************************************************
 *
 * GPIO assignment of Avermedia M179 (per information direct from AVerMedia)
 *
 *    bit 15  14  13  12 |  11  10   9   8 |   7   6   5   4 |   3   2   1   0
 * OUTPUT IN0 AM0 IN1               AM1 AM2       IN2     BR0   BR1
 *  INPUT
 *
 *   IN* : Input selection
 *          IN0 IN1 IN2
 *           *   1   *  Mute
 *           0   0   0  Line-In
 *           1   0   0  TV Tuner Audio
 *           0   0   1  FM Audio
 *           1   0   1  Mute
 *
 *   AM* : Audio Mode
 *          AM0 AM1 AM2
 *           0   0   0  TV Tuner Audio: L_OUT=(L+R)/2, R_OUT=SAP
 *           0   0   1  TV Tuner Audio: L_OUT=R_OUT=SAP   (SAP)
 *           0   1   0  TV Tuner Audio: L_OUT=L, R_OUT=R   (stereo)
 *           0   1   1  TV Tuner Audio: mute
 *           1   *   *  TV Tuner Audio: L_OUT=R_OUT=(L+R)/2   (mono)
 *
 *   BR* : Audio Sample Rate (BR stands for bitrate for some reason)
 *          BR0 BR1
 *           0   0   32 kHz
 *           0   1   44.1 kHz
 *           1   0   48 kHz
 *
 *   DM* : Detected tuner audio Mode
 *         Unknown currently
 *
 * Special thanks to AVerMedia Technologies, Inc. and Jiun-Kuei Jung at
 * AVerMedia for providing the GPIO information used to add support
 * for the M179 cards.
 */

/********************* GPIO stuffs *********************/

/* GPIO registers */
#define IVTV_REG_GPIO_IN    0x9008
#define IVTV_REG_GPIO_OUT   0x900c
#define IVTV_REG_GPIO_DIR   0x9020

void ivtv_reset_ir_gpio(struct ivtv *itv)
{
	int curdir, curout;

	if (itv->card->type != IVTV_CARD_PVR_150)
		return;
	IVTV_DEBUG_INFO("Resetting PVR150 IR\n");
	curout = read_reg(IVTV_REG_GPIO_OUT);
	curdir = read_reg(IVTV_REG_GPIO_DIR);
	curdir |= 0x80;
	write_reg(curdir, IVTV_REG_GPIO_DIR);
	curout = (curout & ~0xF) | 1;
	write_reg(curout, IVTV_REG_GPIO_OUT);
	/* We could use something else for smaller time */
	schedule_timeout_interruptible(msecs_to_jiffies(1));
	curout |= 2;
	write_reg(curout, IVTV_REG_GPIO_OUT);
	curdir &= ~0x80;
	write_reg(curdir, IVTV_REG_GPIO_DIR);
}

/* Xceive tuner reset function */
int ivtv_reset_tuner_gpio(void *dev, int component, int cmd, int value)
{
	struct i2c_algo_bit_data *algo = dev;
	struct ivtv *itv = algo->data;
	u32 curout;

	if (cmd != XC2028_TUNER_RESET)
		return 0;
	IVTV_DEBUG_INFO("Resetting tuner\n");
	curout = read_reg(IVTV_REG_GPIO_OUT);
	curout &= ~(1 << itv->card->xceive_pin);
	write_reg(curout, IVTV_REG_GPIO_OUT);
	schedule_timeout_interruptible(msecs_to_jiffies(1));

	curout |= 1 << itv->card->xceive_pin;
	write_reg(curout, IVTV_REG_GPIO_OUT);
	schedule_timeout_interruptible(msecs_to_jiffies(1));
	return 0;
}

static inline struct ivtv *sd_to_ivtv(struct v4l2_subdev *sd)
{
	return container_of(sd, struct ivtv, sd_gpio);
}

static struct v4l2_queryctrl gpio_ctrl_mute = {
	.id            = V4L2_CID_AUDIO_MUTE,
	.type          = V4L2_CTRL_TYPE_BOOLEAN,
	.name          = "Mute",
	.minimum       = 0,
	.maximum       = 1,
	.step          = 1,
	.default_value = 1,
	.flags         = 0,
};

static int subdev_s_clock_freq(struct v4l2_subdev *sd, u32 freq)
{
	struct ivtv *itv = sd_to_ivtv(sd);
	u16 mask, data;

	mask = itv->card->gpio_audio_freq.mask;
	switch (freq) {
	case 32000:
		data = itv->card->gpio_audio_freq.f32000;
		break;
	case 44100:
		data = itv->card->gpio_audio_freq.f44100;
		break;
	case 48000:
	default:
		data = itv->card->gpio_audio_freq.f48000;
		break;
	}
	if (mask)
		write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
	return 0;
}

static int subdev_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
{
	struct ivtv *itv = sd_to_ivtv(sd);
	u16 mask;

	mask = itv->card->gpio_audio_detect.mask;
	if (mask == 0 || (read_reg(IVTV_REG_GPIO_IN) & mask))
		vt->rxsubchans = V4L2_TUNER_SUB_STEREO |
			V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
	else
		vt->rxsubchans = V4L2_TUNER_SUB_MONO;
	return 0;
}

static int subdev_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
{
	struct ivtv *itv = sd_to_ivtv(sd);
	u16 mask, data;

	mask = itv->card->gpio_audio_mode.mask;
	switch (vt->audmode) {
	case V4L2_TUNER_MODE_LANG1:
		data = itv->card->gpio_audio_mode.lang1;
		break;
	case V4L2_TUNER_MODE_LANG2:
		data = itv->card->gpio_audio_mode.lang2;
		break;
	case V4L2_TUNER_MODE_MONO:
		data = itv->card->gpio_audio_mode.mono;
		break;
	case V4L2_TUNER_MODE_STEREO:
	case V4L2_TUNER_MODE_LANG1_LANG2:
	default:
		data = itv->card->gpio_audio_mode.stereo;
		break;
	}
	if (mask)
		write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
	return 0;
}

static int subdev_s_radio(struct v4l2_subdev *sd)
{
	struct ivtv *itv = sd_to_ivtv(sd);
	u16 mask, data;

	mask = itv->card->gpio_audio_input.mask;
	data = itv->card->gpio_audio_input.radio;
	if (mask)
		write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
	return 0;
}

static int subdev_s_audio_routing(struct v4l2_subdev *sd,
				  u32 input, u32 output, u32 config)
{
	struct ivtv *itv = sd_to_ivtv(sd);
	u16 mask, data;

	if (input > 2)
		return -EINVAL;
	mask = itv->card->gpio_audio_input.mask;
	switch (input) {
	case 0:
		data = itv->card->gpio_audio_input.tuner;
		break;
	case 1:
		data = itv->card->gpio_audio_input.linein;
		break;
	case 2:
	default:
		data = itv->card->gpio_audio_input.radio;
		break;
	}
	if (mask)
		write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
	return 0;
}

static int subdev_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
	struct ivtv *itv = sd_to_ivtv(sd);
	u16 mask, data;

	if (ctrl->id != V4L2_CID_AUDIO_MUTE)
		return -EINVAL;
	mask = itv->card->gpio_audio_mute.mask;
	data = itv->card->gpio_audio_mute.mute;
	ctrl->value = (read_reg(IVTV_REG_GPIO_OUT) & mask) == data;
	return 0;
}

static int subdev_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
	struct ivtv *itv = sd_to_ivtv(sd);
	u16 mask, data;

	if (ctrl->id != V4L2_CID_AUDIO_MUTE)
		return -EINVAL;
	mask = itv->card->gpio_audio_mute.mask;
	data = ctrl->value ? itv->card->gpio_audio_mute.mute : 0;
	if (mask)
		write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
	return 0;
}

static int subdev_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
{
	if (qc->id != V4L2_CID_AUDIO_MUTE)
		return -EINVAL;
	*qc = gpio_ctrl_mute;
	return 0;
}

static int subdev_log_status(struct v4l2_subdev *sd)
{
	struct ivtv *itv = sd_to_ivtv(sd);

	IVTV_INFO("GPIO status: DIR=0x%04x OUT=0x%04x IN=0x%04x\n",
			read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT),
			read_reg(IVTV_REG_GPIO_IN));
	return 0;
}

static int subdev_s_video_routing(struct v4l2_subdev *sd,
				  u32 input, u32 output, u32 config)
{
	struct ivtv *itv = sd_to_ivtv(sd);
	u16 mask, data;

	if (input > 2) /* 0:Tuner 1:Composite 2:S-Video */
		return -EINVAL;
	mask = itv->card->gpio_video_input.mask;
	if (input == 0)
		data = itv->card->gpio_video_input.tuner;
	else if (input == 1)
		data = itv->card->gpio_video_input.composite;
	else
		data = itv->card->gpio_video_input.svideo;
	if (mask)
		write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
	return 0;
}

static const struct v4l2_subdev_core_ops subdev_core_ops = {
	.log_status = subdev_log_status,
	.g_ctrl = subdev_g_ctrl,
	.s_ctrl = subdev_s_ctrl,
	.queryctrl = subdev_queryctrl,
};

static const struct v4l2_subdev_tuner_ops subdev_tuner_ops = {
	.s_radio = subdev_s_radio,
	.g_tuner = subdev_g_tuner,
	.s_tuner = subdev_s_tuner,
};

static const struct v4l2_subdev_audio_ops subdev_audio_ops = {
	.s_clock_freq = subdev_s_clock_freq,
	.s_routing = subdev_s_audio_routing,
};

static const struct v4l2_subdev_video_ops subdev_video_ops = {
	.s_routing = subdev_s_video_routing,
};

static const struct v4l2_subdev_ops subdev_ops = {
	.core = &subdev_core_ops,
	.tuner = &subdev_tuner_ops,
	.audio = &subdev_audio_ops,
	.video = &subdev_video_ops,
};

int ivtv_gpio_init(struct ivtv *itv)
{
	u16 pin = 0;

	if (itv->card->xceive_pin)
		pin = 1 << itv->card->xceive_pin;

	if ((itv->card->gpio_init.direction | pin) == 0)
		return 0;

	IVTV_DEBUG_INFO("GPIO initial dir: %08x out: %08x\n",
		   read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT));

	/* init output data then direction */
	write_reg(itv->card->gpio_init.initial_value | pin, IVTV_REG_GPIO_OUT);
	write_reg(itv->card->gpio_init.direction | pin, IVTV_REG_GPIO_DIR);
	v4l2_subdev_init(&itv->sd_gpio, &subdev_ops);
	snprintf(itv->sd_gpio.name, sizeof(itv->sd_gpio.name), "%s-gpio", itv->v4l2_dev.name);
	itv->sd_gpio.grp_id = IVTV_HW_GPIO;
	return v4l2_device_register_subdev(&itv->v4l2_dev, &itv->sd_gpio);
}
Commit	Line	Data
1a0adaf3 HV	1	/*
	2	gpio functions.
	3	Merging GPIO support into driver:
	4	Copyright (C) 2004 Chris Kennedy <c@groovy.org>
	5	Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 2 of the License, or
	10	(at your option) any later version.
	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with this program; if not, write to the Free Software
	19	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*/
	21
	22	#include "ivtv-driver.h"
	23	#include "ivtv-cards.h"
	24	#include "ivtv-gpio.h"
0e614cd1	25	#include "tuner-xc2028.h"
1a0adaf3 HV	26	#include <media/tuner.h>
	27
	28	/*
	29	* GPIO assignment of Yuan MPG600/MPG160
	30	*
	31	* bit 15 14 13 12 \| 11 10 9 8 \| 7 6 5 4 \| 3 2 1 0
	32	* OUTPUT IN1 IN0 AM3 AM2 AM1 AM0
	33	* INPUT DM1 DM0
	34	*
	35	* IN* : Input selection
	36	* IN1 IN0
	37	* 1 1 N/A
	38	* 1 0 Line
	39	* 0 1 N/A
	40	* 0 0 Tuner
	41	*
	42	* AM* : Audio Mode
	43	* AM3 0: Normal 1: Mixed(Sub+Main channel)
	44	* AM2 0: Subchannel 1: Main channel
	45	* AM1 0: Stereo 1: Mono
	46	* AM0 0: Normal 1: Mute
	47	*
	48	* DM* : Detected tuner audio Mode
	49	* DM1 0: Stereo 1: Mono
	50	* DM0 0: Multiplex 1: Normal
	51	*
	52	* GPIO Initial Settings
	53	* MPG600 MPG160
	54	* DIR 0x3080 0x7080
	55	* OUTPUT 0x000C 0x400C
	56	*
	57	* Special thanks to Makoto Iguchi <iguchi@tahoo.org> and Mr. Anonymous
	58	* for analyzing GPIO of MPG160.
	59	*
	60	*****************************************************************************
	61	*
	62	* GPIO assignment of Avermedia M179 (per information direct from AVerMedia)
	63	*
	64	* bit 15 14 13 12 \| 11 10 9 8 \| 7 6 5 4 \| 3 2 1 0
	65	* OUTPUT IN0 AM0 IN1 AM1 AM2 IN2 BR0 BR1
	66	* INPUT
	67	*
	68	* IN* : Input selection
	69	* IN0 IN1 IN2
	70	* * 1 * Mute
	71	* 0 0 0 Line-In
	72	* 1 0 0 TV Tuner Audio
	73	* 0 0 1 FM Audio
	74	* 1 0 1 Mute
	75	*
	76	* AM* : Audio Mode
	77	* AM0 AM1 AM2
	78	* 0 0 0 TV Tuner Audio: L_OUT=(L+R)/2, R_OUT=SAP
	79	* 0 0 1 TV Tuner Audio: L_OUT=R_OUT=SAP (SAP)
	80	* 0 1 0 TV Tuner Audio: L_OUT=L, R_OUT=R (stereo)
	81	* 0 1 1 TV Tuner Audio: mute
	82	* 1 * * TV Tuner Audio: L_OUT=R_OUT=(L+R)/2 (mono)
	83	*
	84	* BR* : Audio Sample Rate (BR stands for bitrate for some reason)
	85	* BR0 BR1
	86	* 0 0 32 kHz
	87	* 0 1 44.1 kHz
	88	* 1 0 48 kHz
	89	*
90	* DM* : Detected tuner audio Mode
91	* Unknown currently
92	*
93	* Special thanks to AVerMedia Technologies, Inc. and Jiun-Kuei Jung at
94	* AVerMedia for providing the GPIO information used to add support
95	* for the M179 cards.
96	*/
97
98	/******************* GPIO stuffs *******************/
99
100	/* GPIO registers */
101	#define IVTV_REG_GPIO_IN 0x9008
102	#define IVTV_REG_GPIO_OUT 0x900c
103	#define IVTV_REG_GPIO_DIR 0x9020
104
105	void ivtv_reset_ir_gpio(struct ivtv *itv)
106	{
107	int curdir, curout;
108
109	if (itv->card->type != IVTV_CARD_PVR_150)
110	return;
111	IVTV_DEBUG_INFO("Resetting PVR150 IR\n");
112	curout = read_reg(IVTV_REG_GPIO_OUT);
113	curdir = read_reg(IVTV_REG_GPIO_DIR);
114	curdir \|= 0x80;
115	write_reg(curdir, IVTV_REG_GPIO_DIR);
116	curout = (curout & ~0xF) \| 1;
117	write_reg(curout, IVTV_REG_GPIO_OUT);
118	/* We could use something else for smaller time */
97989ada	119	schedule_timeout_interruptible(msecs_to_jiffies(1));
1a0adaf3 HV	120	curout \|= 2;
	121	write_reg(curout, IVTV_REG_GPIO_OUT);
	122	curdir &= ~0x80;
	123	write_reg(curdir, IVTV_REG_GPIO_DIR);
	124	}
	125
0e614cd1	126	/* Xceive tuner reset function */
d7cba043	127	int ivtv_reset_tuner_gpio(void *dev, int component, int cmd, int value)
0e614cd1 HV	128	{
	129	struct i2c_algo_bit_data *algo = dev;
	130	struct ivtv *itv = algo->data;
136531da	131	u32 curout;
0e614cd1 HV	132
	133	if (cmd != XC2028_TUNER_RESET)
	134	return 0;
	135	IVTV_DEBUG_INFO("Resetting tuner\n");
	136	curout = read_reg(IVTV_REG_GPIO_OUT);
136531da	137	curout &= ~(1 << itv->card->xceive_pin);
0e614cd1 HV	138	write_reg(curout, IVTV_REG_GPIO_OUT);
	139	schedule_timeout_interruptible(msecs_to_jiffies(1));
	140
136531da	141	curout \|= 1 << itv->card->xceive_pin;
0e614cd1 HV	142	write_reg(curout, IVTV_REG_GPIO_OUT);
	143	schedule_timeout_interruptible(msecs_to_jiffies(1));
	144	return 0;
	145	}
1a0adaf3	146
67ec09fd	147	static inline struct ivtv sd_to_ivtv(struct v4l2_subdev sd)
1a0adaf3	148	{
67ec09fd	149	return container_of(sd, struct ivtv, sd_gpio);
1a0adaf3 HV	150	}
	151
	152	static struct v4l2_queryctrl gpio_ctrl_mute = {
	153	.id = V4L2_CID_AUDIO_MUTE,
	154	.type = V4L2_CTRL_TYPE_BOOLEAN,
	155	.name = "Mute",
	156	.minimum = 0,
	157	.maximum = 1,
	158	.step = 1,
	159	.default_value = 1,
	160	.flags = 0,
	161	};
	162
67ec09fd	163	static int subdev_s_clock_freq(struct v4l2_subdev *sd, u32 freq)
1a0adaf3	164	{
67ec09fd	165	struct ivtv *itv = sd_to_ivtv(sd);
1a0adaf3 HV	166	u16 mask, data;
1a0adaf3 HV	167
67ec09fd HV	168	mask = itv->card->gpio_audio_freq.mask;
	169	switch (freq) {
	170	case 32000:
	171	data = itv->card->gpio_audio_freq.f32000;
	172	break;
	173	case 44100:
	174	data = itv->card->gpio_audio_freq.f44100;
	175	break;
	176	case 48000:
	177	default:
	178	data = itv->card->gpio_audio_freq.f48000;
1a0adaf3	179	break;
67ec09fd HV	180	}
	181	if (mask)
	182	write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) \| (data & mask), IVTV_REG_GPIO_OUT);
	183	return 0;
	184	}
1a0adaf3	185
67ec09fd HV	186	static int subdev_g_tuner(struct v4l2_subdev sd, struct v4l2_tuner vt)
	187	{
	188	struct ivtv *itv = sd_to_ivtv(sd);
	189	u16 mask;
	190
	191	mask = itv->card->gpio_audio_detect.mask;
	192	if (mask == 0 \|\| (read_reg(IVTV_REG_GPIO_IN) & mask))
dc47b778 HV	193	vt->rxsubchans = V4L2_TUNER_SUB_STEREO \|
dc47b778 HV	194	V4L2_TUNER_SUB_LANG1 \| V4L2_TUNER_SUB_LANG2;
67ec09fd HV	195	else
	196	vt->rxsubchans = V4L2_TUNER_SUB_MONO;
	197	return 0;
	198	}
1a0adaf3	199
67ec09fd HV	200	static int subdev_s_tuner(struct v4l2_subdev sd, struct v4l2_tuner vt)
	201	{
	202	struct ivtv *itv = sd_to_ivtv(sd);
	203	u16 mask, data;
1a0adaf3	204
67ec09fd HV	205	mask = itv->card->gpio_audio_mode.mask;
	206	switch (vt->audmode) {
	207	case V4L2_TUNER_MODE_LANG1:
	208	data = itv->card->gpio_audio_mode.lang1;
	209	break;
	210	case V4L2_TUNER_MODE_LANG2:
	211	data = itv->card->gpio_audio_mode.lang2;
	212	break;
	213	case V4L2_TUNER_MODE_MONO:
	214	data = itv->card->gpio_audio_mode.mono;
1a0adaf3	215	break;
67ec09fd HV	216	case V4L2_TUNER_MODE_STEREO:
	217	case V4L2_TUNER_MODE_LANG1_LANG2:
	218	default:
	219	data = itv->card->gpio_audio_mode.stereo;
	220	break;
	221	}
	222	if (mask)
	223	write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) \| (data & mask), IVTV_REG_GPIO_OUT);
	224	return 0;
	225	}
	226
	227	static int subdev_s_radio(struct v4l2_subdev *sd)
	228	{
	229	struct ivtv *itv = sd_to_ivtv(sd);
	230	u16 mask, data;
	231
	232	mask = itv->card->gpio_audio_input.mask;
	233	data = itv->card->gpio_audio_input.radio;
	234	if (mask)
	235	write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) \| (data & mask), IVTV_REG_GPIO_OUT);
	236	return 0;
	237	}
1a0adaf3	238
5325b427 HV	239	static int subdev_s_audio_routing(struct v4l2_subdev *sd,
5325b427 HV	240	u32 input, u32 output, u32 config)
67ec09fd HV	241	{
	242	struct ivtv *itv = sd_to_ivtv(sd);
	243	u16 mask, data;
	244
5325b427	245	if (input > 2)
67ec09fd HV	246	return -EINVAL;
67ec09fd HV	247	mask = itv->card->gpio_audio_input.mask;
5325b427	248	switch (input) {
67ec09fd	249	case 0:
1a0adaf3 HV	250	data = itv->card->gpio_audio_input.tuner;
1a0adaf3 HV	251	break;
67ec09fd HV	252	case 1:
	253	data = itv->card->gpio_audio_input.linein;
	254	break;
	255	case 2:
	256	default:
	257	data = itv->card->gpio_audio_input.radio;
1a0adaf3	258	break;
67ec09fd HV	259	}
	260	if (mask)
	261	write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) \| (data & mask), IVTV_REG_GPIO_OUT);
	262	return 0;
	263	}
1a0adaf3	264
67ec09fd HV	265	static int subdev_g_ctrl(struct v4l2_subdev sd, struct v4l2_control ctrl)
	266	{
	267	struct ivtv *itv = sd_to_ivtv(sd);
	268	u16 mask, data;
1a0adaf3	269
67ec09fd HV	270	if (ctrl->id != V4L2_CID_AUDIO_MUTE)
	271	return -EINVAL;
	272	mask = itv->card->gpio_audio_mute.mask;
	273	data = itv->card->gpio_audio_mute.mute;
	274	ctrl->value = (read_reg(IVTV_REG_GPIO_OUT) & mask) == data;
	275	return 0;
	276	}
1a0adaf3	277
67ec09fd HV	278	static int subdev_s_ctrl(struct v4l2_subdev sd, struct v4l2_control ctrl)
	279	{
	280	struct ivtv *itv = sd_to_ivtv(sd);
	281	u16 mask, data;
1a0adaf3	282
67ec09fd HV	283	if (ctrl->id != V4L2_CID_AUDIO_MUTE)
	284	return -EINVAL;
	285	mask = itv->card->gpio_audio_mute.mask;
	286	data = ctrl->value ? itv->card->gpio_audio_mute.mute : 0;
	287	if (mask)
	288	write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) \| (data & mask), IVTV_REG_GPIO_OUT);
	289	return 0;
	290	}
	291
	292	static int subdev_queryctrl(struct v4l2_subdev sd, struct v4l2_queryctrl qc)
	293	{
	294	if (qc->id != V4L2_CID_AUDIO_MUTE)
	295	return -EINVAL;
	296	*qc = gpio_ctrl_mute;
	297	return 0;
	298	}
	299
	300	static int subdev_log_status(struct v4l2_subdev *sd)
	301	{
	302	struct ivtv *itv = sd_to_ivtv(sd);
1a0adaf3	303
67ec09fd	304	IVTV_INFO("GPIO status: DIR=0x%04x OUT=0x%04x IN=0x%04x\n",
1a0adaf3 HV	305	read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT),
1a0adaf3 HV	306	read_reg(IVTV_REG_GPIO_IN));
67ec09fd HV	307	return 0;
67ec09fd HV	308	}
1a0adaf3	309
5325b427 HV	310	static int subdev_s_video_routing(struct v4l2_subdev *sd,
5325b427 HV	311	u32 input, u32 output, u32 config)
67ec09fd HV	312	{
	313	struct ivtv *itv = sd_to_ivtv(sd);
	314	u16 mask, data;
1a0adaf3	315
5325b427	316	if (input > 2) /* 0:Tuner 1:Composite 2:S-Video */
1a0adaf3	317	return -EINVAL;
67ec09fd	318	mask = itv->card->gpio_video_input.mask;
5325b427	319	if (input == 0)
67ec09fd	320	data = itv->card->gpio_video_input.tuner;
5325b427	321	else if (input == 1)
67ec09fd HV	322	data = itv->card->gpio_video_input.composite;
	323	else
	324	data = itv->card->gpio_video_input.svideo;
1a0adaf3 HV	325	if (mask)
	326	write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) \| (data & mask), IVTV_REG_GPIO_OUT);
	327	return 0;
	328	}
67ec09fd HV	329
	330	static const struct v4l2_subdev_core_ops subdev_core_ops = {
	331	.log_status = subdev_log_status,
	332	.g_ctrl = subdev_g_ctrl,
	333	.s_ctrl = subdev_s_ctrl,
	334	.queryctrl = subdev_queryctrl,
	335	};
	336
	337	static const struct v4l2_subdev_tuner_ops subdev_tuner_ops = {
67ec09fd HV	338	.s_radio = subdev_s_radio,
	339	.g_tuner = subdev_g_tuner,
	340	.s_tuner = subdev_s_tuner,
	341	};
	342
	343	static const struct v4l2_subdev_audio_ops subdev_audio_ops = {
	344	.s_clock_freq = subdev_s_clock_freq,
	345	.s_routing = subdev_s_audio_routing,
	346	};
	347
	348	static const struct v4l2_subdev_video_ops subdev_video_ops = {
	349	.s_routing = subdev_s_video_routing,
	350	};
	351
	352	static const struct v4l2_subdev_ops subdev_ops = {
	353	.core = &subdev_core_ops,
	354	.tuner = &subdev_tuner_ops,
	355	.audio = &subdev_audio_ops,
	356	.video = &subdev_video_ops,
	357	};
	358
	359	int ivtv_gpio_init(struct ivtv *itv)
	360	{
	361	u16 pin = 0;
	362
	363	if (itv->card->xceive_pin)
	364	pin = 1 << itv->card->xceive_pin;
	365
	366	if ((itv->card->gpio_init.direction \| pin) == 0)
	367	return 0;
	368
	369	IVTV_DEBUG_INFO("GPIO initial dir: %08x out: %08x\n",
	370	read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT));
	371
	372	/* init output data then direction */
	373	write_reg(itv->card->gpio_init.initial_value \| pin, IVTV_REG_GPIO_OUT);
	374	write_reg(itv->card->gpio_init.direction \| pin, IVTV_REG_GPIO_DIR);
	375	v4l2_subdev_init(&itv->sd_gpio, &subdev_ops);
8ac05ae3	376	snprintf(itv->sd_gpio.name, sizeof(itv->sd_gpio.name), "%s-gpio", itv->v4l2_dev.name);
67ec09fd	377	itv->sd_gpio.grp_id = IVTV_HW_GPIO;
8ac05ae3	378	return v4l2_device_register_subdev(&itv->v4l2_dev, &itv->sd_gpio);
67ec09fd	379	}