[mirror_ubuntu-artful-kernel.git] / drivers / media / video / saa7134 / saa6752hs.c

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/i2c.h>
#include <linux/types.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <linux/init.h>
#include <linux/crc32.h>


#define MPEG_VIDEO_TARGET_BITRATE_MAX  27000
#define MPEG_VIDEO_MAX_BITRATE_MAX     27000
#define MPEG_TOTAL_TARGET_BITRATE_MAX  27000
#define MPEG_PID_MAX ((1 << 14) - 1)

/* Addresses to scan */
static unsigned short normal_i2c[] = {0x20, I2C_CLIENT_END};
I2C_CLIENT_INSMOD;

MODULE_DESCRIPTION("device driver for saa6752hs MPEG2 encoder");
MODULE_AUTHOR("Andrew de Quincey");
MODULE_LICENSE("GPL");

static struct i2c_driver driver;
static struct i2c_client client_template;

enum saa6752hs_videoformat {
	SAA6752HS_VF_D1 = 0,    /* standard D1 video format: 720x576 */
	SAA6752HS_VF_2_3_D1 = 1,/* 2/3D1 video format: 480x576 */
	SAA6752HS_VF_1_2_D1 = 2,/* 1/2D1 video format: 352x576 */
	SAA6752HS_VF_SIF = 3,   /* SIF video format: 352x288 */
	SAA6752HS_VF_UNKNOWN,
};

static const struct v4l2_format v4l2_format_table[] =
{
	[SAA6752HS_VF_D1] =
		{ .fmt = { .pix = { .width = 720, .height = 576 }}},
	[SAA6752HS_VF_2_3_D1] =
		{ .fmt = { .pix = { .width = 480, .height = 576 }}},
	[SAA6752HS_VF_1_2_D1] =
		{ .fmt = { .pix = { .width = 352, .height = 576 }}},
	[SAA6752HS_VF_SIF] =
		{ .fmt = { .pix = { .width = 352, .height = 288 }}},
	[SAA6752HS_VF_UNKNOWN] =
		{ .fmt = { .pix = { .width = 0, .height = 0}}},
};

struct saa6752hs_state {
	struct i2c_client             client;
	struct v4l2_mpeg_compression  params;
	enum saa6752hs_videoformat    video_format;
	v4l2_std_id                   standard;
};

enum saa6752hs_command {
	SAA6752HS_COMMAND_RESET = 0,
    	SAA6752HS_COMMAND_STOP = 1,
    	SAA6752HS_COMMAND_START = 2,
    	SAA6752HS_COMMAND_PAUSE = 3,
    	SAA6752HS_COMMAND_RECONFIGURE = 4,
    	SAA6752HS_COMMAND_SLEEP = 5,
	SAA6752HS_COMMAND_RECONFIGURE_FORCE = 6,

	SAA6752HS_COMMAND_MAX
};

/* ---------------------------------------------------------------------- */

static u8 PAT[] = {
	0xc2, /* i2c register */
	0x00, /* table number for encoder */

	0x47, /* sync */
	0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid(0) */
	0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */

	0x00, /* PSI pointer to start of table */

	0x00, /* tid(0) */
	0xb0, 0x0d, /* section_syntax_indicator(1), section_length(13) */

	0x00, 0x01, /* transport_stream_id(1) */

	0xc1, /* version_number(0), current_next_indicator(1) */

	0x00, 0x00, /* section_number(0), last_section_number(0) */

	0x00, 0x01, /* program_number(1) */

	0xe0, 0x00, /* PMT PID */

	0x00, 0x00, 0x00, 0x00 /* CRC32 */
};

static u8 PMT[] = {
	0xc2, /* i2c register */
	0x01, /* table number for encoder */

	0x47, /* sync */
	0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid */
	0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */

	0x00, /* PSI pointer to start of table */

	0x02, /* tid(2) */
	0xb0, 0x17, /* section_syntax_indicator(1), section_length(23) */

	0x00, 0x01, /* program_number(1) */

	0xc1, /* version_number(0), current_next_indicator(1) */

	0x00, 0x00, /* section_number(0), last_section_number(0) */

	0xe0, 0x00, /* PCR_PID */

	0xf0, 0x00, /* program_info_length(0) */

	0x02, 0xe0, 0x00, 0xf0, 0x00, /* video stream type(2), pid */
	0x04, 0xe0, 0x00, 0xf0, 0x00, /* audio stream type(4), pid */

	0x00, 0x00, 0x00, 0x00 /* CRC32 */
};

static struct v4l2_mpeg_compression param_defaults =
{
	.st_type         = V4L2_MPEG_TS_2,
	.st_bitrate      = {
		.mode    = V4L2_BITRATE_CBR,
		.target  = 7000,
	},

	.ts_pid_pmt      = 16,
	.ts_pid_video    = 260,
	.ts_pid_audio    = 256,
	.ts_pid_pcr      = 259,

	.vi_type         = V4L2_MPEG_VI_2,
	.vi_aspect_ratio = V4L2_MPEG_ASPECT_4_3,
	.vi_bitrate      = {
		.mode    = V4L2_BITRATE_VBR,
		.target  = 4000,
		.max     = 6000,
	},

	.au_type         = V4L2_MPEG_AU_2_II,
	.au_bitrate      = {
		.mode    = V4L2_BITRATE_CBR,
		.target  = 256,
	},

};

/* ---------------------------------------------------------------------- */

static int saa6752hs_chip_command(struct i2c_client* client,
				  enum saa6752hs_command command)
{
	unsigned char buf[3];
	unsigned long timeout;
	int status = 0;

	/* execute the command */
	switch(command) {
	case SAA6752HS_COMMAND_RESET:
		buf[0] = 0x00;
		break;

	case SAA6752HS_COMMAND_STOP:
		buf[0] = 0x03;
		break;

	case SAA6752HS_COMMAND_START:
		buf[0] = 0x02;
		break;

	case SAA6752HS_COMMAND_PAUSE:
		buf[0] = 0x04;
		break;

	case SAA6752HS_COMMAND_RECONFIGURE:
		buf[0] = 0x05;
		break;

	case SAA6752HS_COMMAND_SLEEP:
		buf[0] = 0x06;
		break;

	case SAA6752HS_COMMAND_RECONFIGURE_FORCE:
		buf[0] = 0x07;
		break;

	default:
		return -EINVAL;
	}

	/* set it and wait for it to be so */
	i2c_master_send(client, buf, 1);
	timeout = jiffies + HZ * 3;
	for (;;) {
		/* get the current status */
		buf[0] = 0x10;
		i2c_master_send(client, buf, 1);
		i2c_master_recv(client, buf, 1);

		if (!(buf[0] & 0x20))
			break;
		if (time_after(jiffies,timeout)) {
			status = -ETIMEDOUT;
			break;
		}

		msleep(10);
	}

	/* delay a bit to let encoder settle */
	msleep(50);

	return status;
}


static int saa6752hs_set_bitrate(struct i2c_client* client,
				 struct v4l2_mpeg_compression* params)
{
	u8 buf[3];

	/* set the bitrate mode */
	buf[0] = 0x71;
	buf[1] = (params->vi_bitrate.mode == V4L2_BITRATE_VBR) ? 0 : 1;
	i2c_master_send(client, buf, 2);

	/* set the video bitrate */
	if (params->vi_bitrate.mode == V4L2_BITRATE_VBR) {
		/* set the target bitrate */
		buf[0] = 0x80;
	    	buf[1] = params->vi_bitrate.target >> 8;
		buf[2] = params->vi_bitrate.target & 0xff;
		i2c_master_send(client, buf, 3);

		/* set the max bitrate */
		buf[0] = 0x81;
	    	buf[1] = params->vi_bitrate.max >> 8;
		buf[2] = params->vi_bitrate.max & 0xff;
		i2c_master_send(client, buf, 3);
	} else {
		/* set the target bitrate (no max bitrate for CBR) */
		buf[0] = 0x81;
	    	buf[1] = params->vi_bitrate.target >> 8;
		buf[2] = params->vi_bitrate.target & 0xff;
		i2c_master_send(client, buf, 3);
	}

	/* set the audio bitrate */
	buf[0] = 0x94;
	buf[1] = (256 == params->au_bitrate.target) ? 0 : 1;
	i2c_master_send(client, buf, 2);

	/* set the total bitrate */
	buf[0] = 0xb1;
	buf[1] = params->st_bitrate.target >> 8;
	buf[2] = params->st_bitrate.target & 0xff;
	i2c_master_send(client, buf, 3);

	return 0;
}

static void saa6752hs_set_subsampling(struct i2c_client* client,
				      struct v4l2_format* f)
{
	struct saa6752hs_state *h = i2c_get_clientdata(client);
	int dist_352, dist_480, dist_720;

	/*
	  FIXME: translate and round width/height into EMPRESS
	  subsample type:

	  type   |   PAL   |  NTSC
	  ---------------------------
	  SIF    | 352x288 | 352x240
	  1/2 D1 | 352x576 | 352x480
	  2/3 D1 | 480x576 | 480x480
	  D1     | 720x576 | 720x480
	*/

	dist_352 = abs(f->fmt.pix.width - 352);
	dist_480 = abs(f->fmt.pix.width - 480);
	dist_720 = abs(f->fmt.pix.width - 720);
	if (dist_720 < dist_480) {
		f->fmt.pix.width = 720;
		f->fmt.pix.height = 576;
		h->video_format = SAA6752HS_VF_D1;
	}
	else if (dist_480 < dist_352) {
		f->fmt.pix.width = 480;
		f->fmt.pix.height = 576;
		h->video_format = SAA6752HS_VF_2_3_D1;
	}
	else {
		f->fmt.pix.width = 352;
		if (abs(f->fmt.pix.height - 576) <
		    abs(f->fmt.pix.height - 288)) {
			f->fmt.pix.height = 576;
			h->video_format = SAA6752HS_VF_1_2_D1;
		}
		else {
			f->fmt.pix.height = 288;
			h->video_format = SAA6752HS_VF_SIF;
		}
	}
}


static void saa6752hs_set_params(struct i2c_client* client,
				 struct v4l2_mpeg_compression* params)
{
	struct saa6752hs_state *h = i2c_get_clientdata(client);

	/* check PIDs */
	if (params->ts_pid_pmt <= MPEG_PID_MAX)
		h->params.ts_pid_pmt = params->ts_pid_pmt;
	if (params->ts_pid_pcr <= MPEG_PID_MAX)
		h->params.ts_pid_pcr = params->ts_pid_pcr;
	if (params->ts_pid_video <= MPEG_PID_MAX)
		h->params.ts_pid_video = params->ts_pid_video;
	if (params->ts_pid_audio <= MPEG_PID_MAX)
		h->params.ts_pid_audio = params->ts_pid_audio;

	/* check bitrate parameters */
	if ((params->vi_bitrate.mode == V4L2_BITRATE_CBR) ||
	    (params->vi_bitrate.mode == V4L2_BITRATE_VBR))
		h->params.vi_bitrate.mode = params->vi_bitrate.mode;
	if (params->vi_bitrate.mode != V4L2_BITRATE_NONE)
		h->params.st_bitrate.target = params->st_bitrate.target;
	if (params->vi_bitrate.mode != V4L2_BITRATE_NONE)
		h->params.vi_bitrate.target = params->vi_bitrate.target;
	if (params->vi_bitrate.mode == V4L2_BITRATE_VBR)
		h->params.vi_bitrate.max = params->vi_bitrate.max;
	if (params->au_bitrate.mode != V4L2_BITRATE_NONE)
		h->params.au_bitrate.target = params->au_bitrate.target;

	/* aspect ratio */
	if (params->vi_aspect_ratio == V4L2_MPEG_ASPECT_4_3 ||
	    params->vi_aspect_ratio == V4L2_MPEG_ASPECT_16_9)
		h->params.vi_aspect_ratio = params->vi_aspect_ratio;

	/* range checks */
	if (h->params.st_bitrate.target > MPEG_TOTAL_TARGET_BITRATE_MAX)
		h->params.st_bitrate.target = MPEG_TOTAL_TARGET_BITRATE_MAX;
	if (h->params.vi_bitrate.target > MPEG_VIDEO_TARGET_BITRATE_MAX)
		h->params.vi_bitrate.target = MPEG_VIDEO_TARGET_BITRATE_MAX;
	if (h->params.vi_bitrate.max > MPEG_VIDEO_MAX_BITRATE_MAX)
		h->params.vi_bitrate.max = MPEG_VIDEO_MAX_BITRATE_MAX;
	if (h->params.au_bitrate.target <= 256)
		h->params.au_bitrate.target = 256;
	else
		h->params.au_bitrate.target = 384;
}

static int saa6752hs_init(struct i2c_client* client)
{
	unsigned char buf[9], buf2[4];
	struct saa6752hs_state *h;
	u32 crc;
	unsigned char localPAT[256];
	unsigned char localPMT[256];

	h = i2c_get_clientdata(client);

	/* Set video format - must be done first as it resets other settings */
	buf[0] = 0x41;
	buf[1] = h->video_format;
	i2c_master_send(client, buf, 2);

	/* Set number of lines in input signal */
	buf[0] = 0x40;
	buf[1] = 0x00;
	if (h->standard & V4L2_STD_525_60)
		buf[1] = 0x01;
	i2c_master_send(client, buf, 2);

	/* set bitrate */
	saa6752hs_set_bitrate(client, &h->params);

	/* Set GOP structure {3, 13} */
	buf[0] = 0x72;
	buf[1] = 0x03;
	buf[2] = 0x0D;
	i2c_master_send(client,buf,3);

    	/* Set minimum Q-scale {4} */
	buf[0] = 0x82;
	buf[1] = 0x04;
	i2c_master_send(client,buf,2);

    	/* Set maximum Q-scale {12} */
	buf[0] = 0x83;
	buf[1] = 0x0C;
	i2c_master_send(client,buf,2);

    	/* Set Output Protocol */
	buf[0] = 0xD0;
	buf[1] = 0x81;
	i2c_master_send(client,buf,2);

    	/* Set video output stream format {TS} */
	buf[0] = 0xB0;
	buf[1] = 0x05;
	i2c_master_send(client,buf,2);

	/* compute PAT */
	memcpy(localPAT, PAT, sizeof(PAT));
	localPAT[17] = 0xe0 | ((h->params.ts_pid_pmt >> 8) & 0x0f);
	localPAT[18] = h->params.ts_pid_pmt & 0xff;
	crc = crc32_be(~0, &localPAT[7], sizeof(PAT) - 7 - 4);
	localPAT[sizeof(PAT) - 4] = (crc >> 24) & 0xFF;
	localPAT[sizeof(PAT) - 3] = (crc >> 16) & 0xFF;
	localPAT[sizeof(PAT) - 2] = (crc >> 8) & 0xFF;
	localPAT[sizeof(PAT) - 1] = crc & 0xFF;

	/* compute PMT */
	memcpy(localPMT, PMT, sizeof(PMT));
	localPMT[3] = 0x40 | ((h->params.ts_pid_pmt >> 8) & 0x0f);
	localPMT[4] = h->params.ts_pid_pmt & 0xff;
	localPMT[15] = 0xE0 | ((h->params.ts_pid_pcr >> 8) & 0x0F);
	localPMT[16] = h->params.ts_pid_pcr & 0xFF;
	localPMT[20] = 0xE0 | ((h->params.ts_pid_video >> 8) & 0x0F);
	localPMT[21] = h->params.ts_pid_video & 0xFF;
	localPMT[25] = 0xE0 | ((h->params.ts_pid_audio >> 8) & 0x0F);
	localPMT[26] = h->params.ts_pid_audio & 0xFF;
	crc = crc32_be(~0, &localPMT[7], sizeof(PMT) - 7 - 4);
	localPMT[sizeof(PMT) - 4] = (crc >> 24) & 0xFF;
	localPMT[sizeof(PMT) - 3] = (crc >> 16) & 0xFF;
	localPMT[sizeof(PMT) - 2] = (crc >> 8) & 0xFF;
	localPMT[sizeof(PMT) - 1] = crc & 0xFF;

    	/* Set Audio PID */
	buf[0] = 0xC1;
	buf[1] = (h->params.ts_pid_audio >> 8) & 0xFF;
	buf[2] = h->params.ts_pid_audio & 0xFF;
	i2c_master_send(client,buf,3);

	/* Set Video PID */
	buf[0] = 0xC0;
	buf[1] = (h->params.ts_pid_video >> 8) & 0xFF;
	buf[2] = h->params.ts_pid_video & 0xFF;
	i2c_master_send(client,buf,3);

	/* Set PCR PID */
	buf[0] = 0xC4;
	buf[1] = (h->params.ts_pid_pcr >> 8) & 0xFF;
	buf[2] = h->params.ts_pid_pcr & 0xFF;
	i2c_master_send(client,buf,3);

	/* Send SI tables */
	i2c_master_send(client,localPAT,sizeof(PAT));
	i2c_master_send(client,localPMT,sizeof(PMT));

	/* mute then unmute audio. This removes buzzing artefacts */
	buf[0] = 0xa4;
	buf[1] = 1;
	i2c_master_send(client, buf, 2);
	buf[1] = 0;
	i2c_master_send(client, buf, 2);

	/* start it going */
	saa6752hs_chip_command(client, SAA6752HS_COMMAND_START);

	/* readout current state */
	buf[0] = 0xE1;
	buf[1] = 0xA7;
	buf[2] = 0xFE;
	buf[3] = 0x82;
	buf[4] = 0xB0;
	i2c_master_send(client, buf, 5);
	i2c_master_recv(client, buf2, 4);

	/* change aspect ratio */
	buf[0] = 0xE0;
	buf[1] = 0xA7;
	buf[2] = 0xFE;
	buf[3] = 0x82;
	buf[4] = 0xB0;
	buf[5] = buf2[0];
	switch(h->params.vi_aspect_ratio) {
	case V4L2_MPEG_ASPECT_16_9:
		buf[6] = buf2[1] | 0x40;
		break;
	case V4L2_MPEG_ASPECT_4_3:
	default:
		buf[6] = buf2[1] & 0xBF;
		break;
		break;
	}
	buf[7] = buf2[2];
	buf[8] = buf2[3];
	i2c_master_send(client, buf, 9);

	return 0;
}

static int saa6752hs_attach(struct i2c_adapter *adap, int addr, int kind)
{
	struct saa6752hs_state *h;


	if (NULL == (h = kzalloc(sizeof(*h), GFP_KERNEL)))
		return -ENOMEM;
	h->client = client_template;
	h->params = param_defaults;
	h->client.adapter = adap;
	h->client.addr = addr;

	/* Assume 625 input lines */
	h->standard = 0;

	i2c_set_clientdata(&h->client, h);
	i2c_attach_client(&h->client);

	v4l_info(&h->client,"saa6752hs: chip found @ 0x%x\n", addr<<1);

	return 0;
}

static int saa6752hs_probe(struct i2c_adapter *adap)
{
	if (adap->class & I2C_CLASS_TV_ANALOG)
		return i2c_probe(adap, &addr_data, saa6752hs_attach);
	return 0;
}

static int saa6752hs_detach(struct i2c_client *client)
{
	struct saa6752hs_state *h;

	h = i2c_get_clientdata(client);
	i2c_detach_client(client);
	kfree(h);
	return 0;
}

static int
saa6752hs_command(struct i2c_client *client, unsigned int cmd, void *arg)
{
	struct saa6752hs_state *h = i2c_get_clientdata(client);
	struct v4l2_mpeg_compression *params = arg;
	int err = 0;

	switch (cmd) {
	case VIDIOC_S_MPEGCOMP:
		if (NULL == params) {
			/* apply settings and start encoder */
			saa6752hs_init(client);
			break;
		}
		saa6752hs_set_params(client, params);
		/* fall through */
	case VIDIOC_G_MPEGCOMP:
		*params = h->params;
		break;
	case VIDIOC_G_FMT:
	{
	   struct v4l2_format *f = arg;

	   if (h->video_format == SAA6752HS_VF_UNKNOWN)
		   h->video_format = SAA6752HS_VF_D1;
	   f->fmt.pix.width =
		   v4l2_format_table[h->video_format].fmt.pix.width;
	   f->fmt.pix.height =
		   v4l2_format_table[h->video_format].fmt.pix.height;
	   break ;
	}
	case VIDIOC_S_FMT:
	{
		struct v4l2_format *f = arg;

		saa6752hs_set_subsampling(client, f);
		break;
	}
	case VIDIOC_S_STD:
		h->standard = *((v4l2_std_id *) arg);
		break;
	default:
		/* nothing */
		break;
	}

	return err;
}

/* ----------------------------------------------------------------------- */

static struct i2c_driver driver = {
	.driver = {
		.name   = "saa6752hs",
	},
	.id             = I2C_DRIVERID_SAA6752HS,
	.attach_adapter = saa6752hs_probe,
	.detach_client  = saa6752hs_detach,
	.command        = saa6752hs_command,
};

static struct i2c_client client_template =
{
	.name       = "saa6752hs",
	.driver     = &driver,
};

static int __init saa6752hs_init_module(void)
{
	return i2c_add_driver(&driver);
}

static void __exit saa6752hs_cleanup_module(void)
{
	i2c_del_driver(&driver);
}

module_init(saa6752hs_init_module);
module_exit(saa6752hs_cleanup_module);

/*
 * Overrides for Emacs so that we follow Linus's tabbing style.
 * ---------------------------------------------------------------------------
 * Local variables:
 * c-basic-offset: 8
 * End:
 */
Commit	Line	Data
1da177e4 LT	1	#include <linux/module.h>
	2	#include <linux/kernel.h>
	3	#include <linux/sched.h>
	4	#include <linux/string.h>
	5	#include <linux/timer.h>
	6	#include <linux/delay.h>
	7	#include <linux/errno.h>
	8	#include <linux/slab.h>
	9	#include <linux/poll.h>
	10	#include <linux/i2c.h>
	11	#include <linux/types.h>
cab462f7 MCC	12	#include <linux/videodev2.h>
cab462f7 MCC	13	#include <media/v4l2-common.h>
1da177e4 LT	14	#include <linux/init.h>
	15	#include <linux/crc32.h>
	16
1da177e4 LT	17
	18	#define MPEG_VIDEO_TARGET_BITRATE_MAX 27000
	19	#define MPEG_VIDEO_MAX_BITRATE_MAX 27000
	20	#define MPEG_TOTAL_TARGET_BITRATE_MAX 27000
	21	#define MPEG_PID_MAX ((1 << 14) - 1)
	22
	23	/* Addresses to scan */
	24	static unsigned short normal_i2c[] = {0x20, I2C_CLIENT_END};
1da177e4 LT	25	I2C_CLIENT_INSMOD;
	26
	27	MODULE_DESCRIPTION("device driver for saa6752hs MPEG2 encoder");
	28	MODULE_AUTHOR("Andrew de Quincey");
	29	MODULE_LICENSE("GPL");
	30
	31	static struct i2c_driver driver;
	32	static struct i2c_client client_template;
	33
0a4c9c93 FC	34	enum saa6752hs_videoformat {
	35	SAA6752HS_VF_D1 = 0, /* standard D1 video format: 720x576 */
	36	SAA6752HS_VF_2_3_D1 = 1,/* 2/3D1 video format: 480x576 */
	37	SAA6752HS_VF_1_2_D1 = 2,/* 1/2D1 video format: 352x576 */
	38	SAA6752HS_VF_SIF = 3, /* SIF video format: 352x288 */
	39	SAA6752HS_VF_UNKNOWN,
	40	};
	41
	42	static const struct v4l2_format v4l2_format_table[] =
	43	{
ac19ecc6 MCC	44	[SAA6752HS_VF_D1] =
	45	{ .fmt = { .pix = { .width = 720, .height = 576 }}},
	46	[SAA6752HS_VF_2_3_D1] =
	47	{ .fmt = { .pix = { .width = 480, .height = 576 }}},
	48	[SAA6752HS_VF_1_2_D1] =
	49	{ .fmt = { .pix = { .width = 352, .height = 576 }}},
	50	[SAA6752HS_VF_SIF] =
	51	{ .fmt = { .pix = { .width = 352, .height = 288 }}},
	52	[SAA6752HS_VF_UNKNOWN] =
	53	{ .fmt = { .pix = { .width = 0, .height = 0}}},
0a4c9c93 FC	54	};
0a4c9c93 FC	55
1da177e4 LT	56	struct saa6752hs_state {
	57	struct i2c_client client;
	58	struct v4l2_mpeg_compression params;
0a4c9c93	59	enum saa6752hs_videoformat video_format;
9b71521b	60	v4l2_std_id standard;
1da177e4 LT	61	};
	62
	63	enum saa6752hs_command {
	64	SAA6752HS_COMMAND_RESET = 0,
	65	SAA6752HS_COMMAND_STOP = 1,
	66	SAA6752HS_COMMAND_START = 2,
	67	SAA6752HS_COMMAND_PAUSE = 3,
	68	SAA6752HS_COMMAND_RECONFIGURE = 4,
	69	SAA6752HS_COMMAND_SLEEP = 5,
	70	SAA6752HS_COMMAND_RECONFIGURE_FORCE = 6,
	71
	72	SAA6752HS_COMMAND_MAX
	73	};
	74
	75	/* ---------------------------------------------------------------------- */
	76
	77	static u8 PAT[] = {
9b71521b RB	78	0xc2, /* i2c register */
9b71521b RB	79	0x00, /* table number for encoder */
1da177e4	80
9b71521b RB	81	0x47, /* sync */
	82	0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid(0) */
	83	0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */
1da177e4	84
9b71521b	85	0x00, /* PSI pointer to start of table */
1da177e4	86
9b71521b RB	87	0x00, /* tid(0) */
9b71521b RB	88	0xb0, 0x0d, /* section_syntax_indicator(1), section_length(13) */
1da177e4	89
9b71521b	90	0x00, 0x01, /* transport_stream_id(1) */
1da177e4	91
9b71521b	92	0xc1, /* version_number(0), current_next_indicator(1) */
1da177e4	93
9b71521b	94	0x00, 0x00, /* section_number(0), last_section_number(0) */
1da177e4	95
9b71521b	96	0x00, 0x01, /* program_number(1) */
1da177e4	97
9b71521b	98	0xe0, 0x00, /* PMT PID */
1da177e4	99
9b71521b	100	0x00, 0x00, 0x00, 0x00 /* CRC32 */
1da177e4 LT	101	};
	102
	103	static u8 PMT[] = {
9b71521b RB	104	0xc2, /* i2c register */
9b71521b RB	105	0x01, /* table number for encoder */
1da177e4	106
9b71521b RB	107	0x47, /* sync */
	108	0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid */
	109	0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */
1da177e4	110
9b71521b	111	0x00, /* PSI pointer to start of table */
1da177e4	112
9b71521b RB	113	0x02, /* tid(2) */
9b71521b RB	114	0xb0, 0x17, /* section_syntax_indicator(1), section_length(23) */
1da177e4	115
9b71521b	116	0x00, 0x01, /* program_number(1) */
1da177e4	117
9b71521b	118	0xc1, /* version_number(0), current_next_indicator(1) */
1da177e4	119
9b71521b	120	0x00, 0x00, /* section_number(0), last_section_number(0) */
1da177e4	121
9b71521b	122	0xe0, 0x00, /* PCR_PID */
1da177e4	123
9b71521b	124	0xf0, 0x00, /* program_info_length(0) */
1da177e4	125
9b71521b RB	126	0x02, 0xe0, 0x00, 0xf0, 0x00, /* video stream type(2), pid */
9b71521b RB	127	0x04, 0xe0, 0x00, 0xf0, 0x00, /* audio stream type(4), pid */
1da177e4	128
9b71521b	129	0x00, 0x00, 0x00, 0x00 /* CRC32 */
1da177e4 LT	130	};
	131
	132	static struct v4l2_mpeg_compression param_defaults =
	133	{
	134	.st_type = V4L2_MPEG_TS_2,
	135	.st_bitrate = {
	136	.mode = V4L2_BITRATE_CBR,
	137	.target = 7000,
	138	},
	139
	140	.ts_pid_pmt = 16,
	141	.ts_pid_video = 260,
	142	.ts_pid_audio = 256,
	143	.ts_pid_pcr = 259,
	144
	145	.vi_type = V4L2_MPEG_VI_2,
	146	.vi_aspect_ratio = V4L2_MPEG_ASPECT_4_3,
	147	.vi_bitrate = {
	148	.mode = V4L2_BITRATE_VBR,
	149	.target = 4000,
	150	.max = 6000,
	151	},
	152
	153	.au_type = V4L2_MPEG_AU_2_II,
	154	.au_bitrate = {
	155	.mode = V4L2_BITRATE_CBR,
	156	.target = 256,
	157	},
	158
1da177e4 LT	159	};
	160
	161	/* ---------------------------------------------------------------------- */
	162
	163	static int saa6752hs_chip_command(struct i2c_client* client,
	164	enum saa6752hs_command command)
	165	{
	166	unsigned char buf[3];
	167	unsigned long timeout;
	168	int status = 0;
	169
9b71521b	170	/* execute the command */
1da177e4	171	switch(command) {
4ac97914 MCC	172	case SAA6752HS_COMMAND_RESET:
4ac97914 MCC	173	buf[0] = 0x00;
1da177e4 LT	174	break;
	175
	176	case SAA6752HS_COMMAND_STOP:
4ac97914	177	buf[0] = 0x03;
1da177e4 LT	178	break;
	179
	180	case SAA6752HS_COMMAND_START:
4ac97914	181	buf[0] = 0x02;
1da177e4 LT	182	break;
	183
	184	case SAA6752HS_COMMAND_PAUSE:
4ac97914	185	buf[0] = 0x04;
1da177e4 LT	186	break;
	187
	188	case SAA6752HS_COMMAND_RECONFIGURE:
	189	buf[0] = 0x05;
	190	break;
	191
4ac97914 MCC	192	case SAA6752HS_COMMAND_SLEEP:
4ac97914 MCC	193	buf[0] = 0x06;
1da177e4 LT	194	break;
1da177e4 LT	195
4ac97914	196	case SAA6752HS_COMMAND_RECONFIGURE_FORCE:
1da177e4 LT	197	buf[0] = 0x07;
	198	break;
	199
	200	default:
	201	return -EINVAL;
	202	}
	203
4ac97914	204	/* set it and wait for it to be so */
1da177e4 LT	205	i2c_master_send(client, buf, 1);
	206	timeout = jiffies + HZ * 3;
	207	for (;;) {
9b71521b	208	/* get the current status */
1da177e4	209	buf[0] = 0x10;
4ac97914	210	i2c_master_send(client, buf, 1);
1da177e4 LT	211	i2c_master_recv(client, buf, 1);
	212
	213	if (!(buf[0] & 0x20))
	214	break;
	215	if (time_after(jiffies,timeout)) {
	216	status = -ETIMEDOUT;
	217	break;
	218	}
	219
1da177e4 LT	220	msleep(10);
	221	}
	222
9b71521b	223	/* delay a bit to let encoder settle */
1da177e4 LT	224	msleep(50);
1da177e4 LT	225
4ac97914	226	return status;
1da177e4 LT	227	}
	228
	229
	230	static int saa6752hs_set_bitrate(struct i2c_client* client,
	231	struct v4l2_mpeg_compression* params)
	232	{
4ac97914	233	u8 buf[3];
1da177e4	234
9b71521b	235	/* set the bitrate mode */
1da177e4 LT	236	buf[0] = 0x71;
	237	buf[1] = (params->vi_bitrate.mode == V4L2_BITRATE_VBR) ? 0 : 1;
	238	i2c_master_send(client, buf, 2);
	239
9b71521b	240	/* set the video bitrate */
1da177e4	241	if (params->vi_bitrate.mode == V4L2_BITRATE_VBR) {
9b71521b	242	/* set the target bitrate */
1da177e4 LT	243	buf[0] = 0x80;
1da177e4 LT	244	buf[1] = params->vi_bitrate.target >> 8;
4ac97914	245	buf[2] = params->vi_bitrate.target & 0xff;
1da177e4 LT	246	i2c_master_send(client, buf, 3);
1da177e4 LT	247
9b71521b	248	/* set the max bitrate */
1da177e4 LT	249	buf[0] = 0x81;
1da177e4 LT	250	buf[1] = params->vi_bitrate.max >> 8;
4ac97914	251	buf[2] = params->vi_bitrate.max & 0xff;
1da177e4 LT	252	i2c_master_send(client, buf, 3);
1da177e4 LT	253	} else {
9b71521b	254	/* set the target bitrate (no max bitrate for CBR) */
4ac97914	255	buf[0] = 0x81;
1da177e4	256	buf[1] = params->vi_bitrate.target >> 8;
4ac97914	257	buf[2] = params->vi_bitrate.target & 0xff;
1da177e4 LT	258	i2c_master_send(client, buf, 3);
	259	}
	260
9b71521b	261	/* set the audio bitrate */
4ac97914	262	buf[0] = 0x94;
1da177e4 LT	263	buf[1] = (256 == params->au_bitrate.target) ? 0 : 1;
	264	i2c_master_send(client, buf, 2);
	265
9b71521b	266	/* set the total bitrate */
1da177e4	267	buf[0] = 0xb1;
4ac97914 MCC	268	buf[1] = params->st_bitrate.target >> 8;
4ac97914 MCC	269	buf[2] = params->st_bitrate.target & 0xff;
1da177e4 LT	270	i2c_master_send(client, buf, 3);
1da177e4 LT	271
1da177e4 LT	272	return 0;
	273	}
	274
0a4c9c93 FC	275	static void saa6752hs_set_subsampling(struct i2c_client* client,
	276	struct v4l2_format* f)
	277	{
	278	struct saa6752hs_state *h = i2c_get_clientdata(client);
	279	int dist_352, dist_480, dist_720;
	280
	281	/*
	282	FIXME: translate and round width/height into EMPRESS
	283	subsample type:
	284
	285	type \| PAL \| NTSC
	286	---------------------------
	287	SIF \| 352x288 \| 352x240
	288	1/2 D1 \| 352x576 \| 352x480
	289	2/3 D1 \| 480x576 \| 480x480
	290	D1 \| 720x576 \| 720x480
	291	*/
	292
	293	dist_352 = abs(f->fmt.pix.width - 352);
	294	dist_480 = abs(f->fmt.pix.width - 480);
	295	dist_720 = abs(f->fmt.pix.width - 720);
	296	if (dist_720 < dist_480) {
	297	f->fmt.pix.width = 720;
	298	f->fmt.pix.height = 576;
	299	h->video_format = SAA6752HS_VF_D1;
	300	}
	301	else if (dist_480 < dist_352) {
	302	f->fmt.pix.width = 480;
	303	f->fmt.pix.height = 576;
	304	h->video_format = SAA6752HS_VF_2_3_D1;
	305	}
	306	else {
	307	f->fmt.pix.width = 352;
	308	if (abs(f->fmt.pix.height - 576) <
	309	abs(f->fmt.pix.height - 288)) {
	310	f->fmt.pix.height = 576;
	311	h->video_format = SAA6752HS_VF_1_2_D1;
	312	}
	313	else {
	314	f->fmt.pix.height = 288;
	315	h->video_format = SAA6752HS_VF_SIF;
	316	}
	317	}
	318	}
	319
1da177e4 LT	320
	321	static void saa6752hs_set_params(struct i2c_client* client,
	322	struct v4l2_mpeg_compression* params)
	323	{
	324	struct saa6752hs_state *h = i2c_get_clientdata(client);
	325
	326	/* check PIDs */
	327	if (params->ts_pid_pmt <= MPEG_PID_MAX)
	328	h->params.ts_pid_pmt = params->ts_pid_pmt;
	329	if (params->ts_pid_pcr <= MPEG_PID_MAX)
	330	h->params.ts_pid_pcr = params->ts_pid_pcr;
	331	if (params->ts_pid_video <= MPEG_PID_MAX)
	332	h->params.ts_pid_video = params->ts_pid_video;
	333	if (params->ts_pid_audio <= MPEG_PID_MAX)
	334	h->params.ts_pid_audio = params->ts_pid_audio;
	335
	336	/* check bitrate parameters */
	337	if ((params->vi_bitrate.mode == V4L2_BITRATE_CBR) \|\|
	338	(params->vi_bitrate.mode == V4L2_BITRATE_VBR))
	339	h->params.vi_bitrate.mode = params->vi_bitrate.mode;
	340	if (params->vi_bitrate.mode != V4L2_BITRATE_NONE)
	341	h->params.st_bitrate.target = params->st_bitrate.target;
	342	if (params->vi_bitrate.mode != V4L2_BITRATE_NONE)
	343	h->params.vi_bitrate.target = params->vi_bitrate.target;
	344	if (params->vi_bitrate.mode == V4L2_BITRATE_VBR)
	345	h->params.vi_bitrate.max = params->vi_bitrate.max;
	346	if (params->au_bitrate.mode != V4L2_BITRATE_NONE)
	347	h->params.au_bitrate.target = params->au_bitrate.target;
	348
	349	/* aspect ratio */
	350	if (params->vi_aspect_ratio == V4L2_MPEG_ASPECT_4_3 \|\|
	351	params->vi_aspect_ratio == V4L2_MPEG_ASPECT_16_9)
	352	h->params.vi_aspect_ratio = params->vi_aspect_ratio;
	353
	354	/* range checks */
	355	if (h->params.st_bitrate.target > MPEG_TOTAL_TARGET_BITRATE_MAX)
	356	h->params.st_bitrate.target = MPEG_TOTAL_TARGET_BITRATE_MAX;
	357	if (h->params.vi_bitrate.target > MPEG_VIDEO_TARGET_BITRATE_MAX)
	358	h->params.vi_bitrate.target = MPEG_VIDEO_TARGET_BITRATE_MAX;
	359	if (h->params.vi_bitrate.max > MPEG_VIDEO_MAX_BITRATE_MAX)
	360	h->params.vi_bitrate.max = MPEG_VIDEO_MAX_BITRATE_MAX;
	361	if (h->params.au_bitrate.target <= 256)
	362	h->params.au_bitrate.target = 256;
	363	else
	364	h->params.au_bitrate.target = 384;
	365	}
	366
	367	static int saa6752hs_init(struct i2c_client* client)
	368	{
	369	unsigned char buf[9], buf2[4];
	370	struct saa6752hs_state *h;
	371	u32 crc;
	372	unsigned char localPAT[256];
	373	unsigned char localPMT[256];
	374
	375	h = i2c_get_clientdata(client);
	376
9b71521b	377	/* Set video format - must be done first as it resets other settings */
1da177e4	378	buf[0] = 0x41;
0a4c9c93	379	buf[1] = h->video_format;
1da177e4 LT	380	i2c_master_send(client, buf, 2);
1da177e4 LT	381
9b71521b RB	382	/* Set number of lines in input signal */
	383	buf[0] = 0x40;
	384	buf[1] = 0x00;
	385	if (h->standard & V4L2_STD_525_60)
	386	buf[1] = 0x01;
	387	i2c_master_send(client, buf, 2);
	388
4ac97914 MCC	389	/* set bitrate */
4ac97914 MCC	390	saa6752hs_set_bitrate(client, &h->params);
1da177e4	391
9b71521b	392	/* Set GOP structure {3, 13} */
1da177e4 LT	393	buf[0] = 0x72;
	394	buf[1] = 0x03;
	395	buf[2] = 0x0D;
	396	i2c_master_send(client,buf,3);
	397
9b71521b	398	/* Set minimum Q-scale {4} */
1da177e4 LT	399	buf[0] = 0x82;
	400	buf[1] = 0x04;
	401	i2c_master_send(client,buf,2);
	402
9b71521b	403	/* Set maximum Q-scale {12} */
1da177e4 LT	404	buf[0] = 0x83;
	405	buf[1] = 0x0C;
	406	i2c_master_send(client,buf,2);
	407
9b71521b	408	/* Set Output Protocol */
1da177e4 LT	409	buf[0] = 0xD0;
	410	buf[1] = 0x81;
	411	i2c_master_send(client,buf,2);
	412
9b71521b	413	/* Set video output stream format {TS} */
1da177e4 LT	414	buf[0] = 0xB0;
	415	buf[1] = 0x05;
	416	i2c_master_send(client,buf,2);
	417
	418	/* compute PAT */
	419	memcpy(localPAT, PAT, sizeof(PAT));
	420	localPAT[17] = 0xe0 \| ((h->params.ts_pid_pmt >> 8) & 0x0f);
	421	localPAT[18] = h->params.ts_pid_pmt & 0xff;
	422	crc = crc32_be(~0, &localPAT[7], sizeof(PAT) - 7 - 4);
	423	localPAT[sizeof(PAT) - 4] = (crc >> 24) & 0xFF;
	424	localPAT[sizeof(PAT) - 3] = (crc >> 16) & 0xFF;
	425	localPAT[sizeof(PAT) - 2] = (crc >> 8) & 0xFF;
	426	localPAT[sizeof(PAT) - 1] = crc & 0xFF;
	427
	428	/* compute PMT */
4ac97914 MCC	429	memcpy(localPMT, PMT, sizeof(PMT));
	430	localPMT[3] = 0x40 \| ((h->params.ts_pid_pmt >> 8) & 0x0f);
	431	localPMT[4] = h->params.ts_pid_pmt & 0xff;
1da177e4 LT	432	localPMT[15] = 0xE0 \| ((h->params.ts_pid_pcr >> 8) & 0x0F);
	433	localPMT[16] = h->params.ts_pid_pcr & 0xFF;
	434	localPMT[20] = 0xE0 \| ((h->params.ts_pid_video >> 8) & 0x0F);
	435	localPMT[21] = h->params.ts_pid_video & 0xFF;
	436	localPMT[25] = 0xE0 \| ((h->params.ts_pid_audio >> 8) & 0x0F);
	437	localPMT[26] = h->params.ts_pid_audio & 0xFF;
	438	crc = crc32_be(~0, &localPMT[7], sizeof(PMT) - 7 - 4);
	439	localPMT[sizeof(PMT) - 4] = (crc >> 24) & 0xFF;
	440	localPMT[sizeof(PMT) - 3] = (crc >> 16) & 0xFF;
	441	localPMT[sizeof(PMT) - 2] = (crc >> 8) & 0xFF;
	442	localPMT[sizeof(PMT) - 1] = crc & 0xFF;
	443
9b71521b	444	/* Set Audio PID */
1da177e4 LT	445	buf[0] = 0xC1;
	446	buf[1] = (h->params.ts_pid_audio >> 8) & 0xFF;
	447	buf[2] = h->params.ts_pid_audio & 0xFF;
	448	i2c_master_send(client,buf,3);
	449
9b71521b	450	/* Set Video PID */
1da177e4 LT	451	buf[0] = 0xC0;
	452	buf[1] = (h->params.ts_pid_video >> 8) & 0xFF;
	453	buf[2] = h->params.ts_pid_video & 0xFF;
	454	i2c_master_send(client,buf,3);
	455
4ac97914	456	/* Set PCR PID */
1da177e4 LT	457	buf[0] = 0xC4;
	458	buf[1] = (h->params.ts_pid_pcr >> 8) & 0xFF;
	459	buf[2] = h->params.ts_pid_pcr & 0xFF;
	460	i2c_master_send(client,buf,3);
	461
9b71521b	462	/* Send SI tables */
1da177e4 LT	463	i2c_master_send(client,localPAT,sizeof(PAT));
	464	i2c_master_send(client,localPMT,sizeof(PMT));
	465
9b71521b	466	/* mute then unmute audio. This removes buzzing artefacts */
1da177e4 LT	467	buf[0] = 0xa4;
	468	buf[1] = 1;
	469	i2c_master_send(client, buf, 2);
4ac97914	470	buf[1] = 0;
1da177e4 LT	471	i2c_master_send(client, buf, 2);
1da177e4 LT	472
9b71521b	473	/* start it going */
1da177e4 LT	474	saa6752hs_chip_command(client, SAA6752HS_COMMAND_START);
1da177e4 LT	475
9b71521b	476	/* readout current state */
1da177e4 LT	477	buf[0] = 0xE1;
	478	buf[1] = 0xA7;
	479	buf[2] = 0xFE;
	480	buf[3] = 0x82;
	481	buf[4] = 0xB0;
	482	i2c_master_send(client, buf, 5);
	483	i2c_master_recv(client, buf2, 4);
	484
9b71521b	485	/* change aspect ratio */
1da177e4 LT	486	buf[0] = 0xE0;
	487	buf[1] = 0xA7;
	488	buf[2] = 0xFE;
	489	buf[3] = 0x82;
	490	buf[4] = 0xB0;
	491	buf[5] = buf2[0];
	492	switch(h->params.vi_aspect_ratio) {
	493	case V4L2_MPEG_ASPECT_16_9:
	494	buf[6] = buf2[1] \| 0x40;
	495	break;
	496	case V4L2_MPEG_ASPECT_4_3:
	497	default:
	498	buf[6] = buf2[1] & 0xBF;
	499	break;
	500	break;
	501	}
	502	buf[7] = buf2[2];
	503	buf[8] = buf2[3];
	504	i2c_master_send(client, buf, 9);
	505
1da177e4 LT	506	return 0;
	507	}
	508
	509	static int saa6752hs_attach(struct i2c_adapter *adap, int addr, int kind)
	510	{
	511	struct saa6752hs_state *h;
	512
1da177e4	513
7408187d	514	if (NULL == (h = kzalloc(sizeof(*h), GFP_KERNEL)))
4ac97914	515	return -ENOMEM;
1da177e4 LT	516	h->client = client_template;
	517	h->params = param_defaults;
	518	h->client.adapter = adap;
	519	h->client.addr = addr;
	520
9b71521b RB	521	/* Assume 625 input lines */
	522	h->standard = 0;
	523
1da177e4	524	i2c_set_clientdata(&h->client, h);
afd1a0c9	525	i2c_attach_client(&h->client);
674434c6	526
cab462f7 MCC	527	v4l_info(&h->client,"saa6752hs: chip found @ 0x%x\n", addr<<1);
cab462f7 MCC	528
1da177e4 LT	529	return 0;
	530	}
	531
	532	static int saa6752hs_probe(struct i2c_adapter *adap)
	533	{
	534	if (adap->class & I2C_CLASS_TV_ANALOG)
	535	return i2c_probe(adap, &addr_data, saa6752hs_attach);
	536	return 0;
	537	}
	538
	539	static int saa6752hs_detach(struct i2c_client *client)
	540	{
	541	struct saa6752hs_state *h;
	542
	543	h = i2c_get_clientdata(client);
	544	i2c_detach_client(client);
	545	kfree(h);
	546	return 0;
	547	}
	548
	549	static int
	550	saa6752hs_command(struct i2c_client client, unsigned int cmd, void arg)
	551	{
	552	struct saa6752hs_state *h = i2c_get_clientdata(client);
	553	struct v4l2_mpeg_compression *params = arg;
	554	int err = 0;
	555
4ac97914	556	switch (cmd) {
1da177e4 LT	557	case VIDIOC_S_MPEGCOMP:
	558	if (NULL == params) {
	559	/* apply settings and start encoder */
	560	saa6752hs_init(client);
	561	break;
	562	}
	563	saa6752hs_set_params(client, params);
	564	/* fall through */
	565	case VIDIOC_G_MPEGCOMP:
	566	*params = h->params;
	567	break;
0a4c9c93 FC	568	case VIDIOC_G_FMT:
0a4c9c93 FC	569	{
4ac97914	570	struct v4l2_format *f = arg;
0a4c9c93 FC	571
	572	if (h->video_format == SAA6752HS_VF_UNKNOWN)
	573	h->video_format = SAA6752HS_VF_D1;
	574	f->fmt.pix.width =
	575	v4l2_format_table[h->video_format].fmt.pix.width;
	576	f->fmt.pix.height =
	577	v4l2_format_table[h->video_format].fmt.pix.height;
	578	break ;
	579	}
	580	case VIDIOC_S_FMT:
	581	{
	582	struct v4l2_format *f = arg;
	583
	584	saa6752hs_set_subsampling(client, f);
	585	break;
	586	}
9b71521b RB	587	case VIDIOC_S_STD:
	588	h->standard = ((v4l2_std_id ) arg);
	589	break;
1da177e4 LT	590	default:
	591	/* nothing */
	592	break;
	593	}
	594
	595	return err;
	596	}
	597
	598	/* ----------------------------------------------------------------------- */
	599
	600	static struct i2c_driver driver = {
604f28e2	601	.driver = {
cab462f7	602	.name = "saa6752hs",
604f28e2	603	},
afd1a0c9	604	.id = I2C_DRIVERID_SAA6752HS,
afd1a0c9 MCC	605	.attach_adapter = saa6752hs_probe,
	606	.detach_client = saa6752hs_detach,
	607	.command = saa6752hs_command,
1da177e4 LT	608	};
	609
	610	static struct i2c_client client_template =
	611	{
fae91e72	612	.name = "saa6752hs",
afd1a0c9	613	.driver = &driver,
1da177e4 LT	614	};
	615
	616	static int __init saa6752hs_init_module(void)
	617	{
	618	return i2c_add_driver(&driver);
	619	}
	620
	621	static void __exit saa6752hs_cleanup_module(void)
	622	{
	623	i2c_del_driver(&driver);
	624	}
	625
	626	module_init(saa6752hs_init_module);
	627	module_exit(saa6752hs_cleanup_module);
	628
	629	/*
	630	* Overrides for Emacs so that we follow Linus's tabbing style.
	631	* ---------------------------------------------------------------------------
	632	* Local variables:
	633	* c-basic-offset: 8
	634	* End:
	635	*/