zoran_card.c

linux-2.6.15.6

		.gpio = { 2, 1, -1, 3, 7, 0, 4, 5 },
		.gpio_pol = { 0, 0, 0, 1, 0, 0, 0, 0 },
		.gpcs = { -1, 0 },
		.vfe_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
		.gws_not_connected = 0,
		.init = &dc10_init,
	}, {
		.type = LML33,
		.name = "LML33",
		.i2c_decoder = I2C_DRIVERID_BT819,
		.i2c_encoder = I2C_DRIVERID_BT856,
		.video_codec = CODEC_TYPE_ZR36060,

		.inputs = 2,
		.input = {
			{ 0, "Composite" },
			{ 7, "S-Video" }
		},
		.norms = 2,
		.tvn = {
			&f50ccir601_lml33,
			&f60ccir601_lml33,
			NULL
		},
		.jpeg_int = ZR36057_ISR_GIRQ1,
		.vsync_int = ZR36057_ISR_GIRQ0,
		.gpio = { 1, -1, 3, 5, 7, -1, -1, -1 },
		.gpio_pol = { 0, 0, 0, 0, 1, 0, 0, 0 },
		.gpcs = { 3, 1 },
		.vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 },
		.gws_not_connected = 1,
		.init = &lml33_init,
	}, {
		.type = LML33R10,
		.name = "LML33R10",
		.vendor_id = PCI_VENDOR_ID_ELECTRONICDESIGNGMBH,
		.device_id = PCI_DEVICE_ID_LML_33R10,
		.i2c_decoder = I2C_DRIVERID_SAA7114,
		.i2c_encoder = I2C_DRIVERID_ADV7170,
		.video_codec = CODEC_TYPE_ZR36060,

		.inputs = 2,
		.input = {
			{ 0, "Composite" },
			{ 7, "S-Video" }
		},
		.norms = 2,
		.tvn = {
			&f50ccir601_lm33r10,
			&f60ccir601_lm33r10,
			NULL
		},
		.jpeg_int = ZR36057_ISR_GIRQ1,
		.vsync_int = ZR36057_ISR_GIRQ0,
		.gpio = { 1, -1, 3, 5, 7, -1, -1, -1 },
		.gpio_pol = { 0, 0, 0, 0, 1, 0, 0, 0 },
		.gpcs = { 3, 1 },
		.vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 },
		.gws_not_connected = 1,
		.init = &lml33_init,
	}, {
		.type = BUZ,
		.name = "Buz",
		.vendor_id = PCI_VENDOR_ID_IOMEGA,
		.device_id = PCI_DEVICE_ID_IOMEGA_BUZ,
		.i2c_decoder = I2C_DRIVERID_SAA7111A,
		.i2c_encoder = I2C_DRIVERID_SAA7185B,
		.video_codec = CODEC_TYPE_ZR36060,

		.inputs = 2,
		.input = {
			{ 3, "Composite" },
			{ 7, "S-Video" }
		},
		.norms = 3,
		.tvn = {
			&f50ccir601,
			&f60ccir601,
			&f50ccir601
		},
		.jpeg_int = ZR36057_ISR_GIRQ1,
		.vsync_int = ZR36057_ISR_GIRQ0,
		.gpio = { 1, -1, 3, -1, -1, -1, -1, -1 },
		.gpio_pol = { 0, 0, 0, 0, 0, 0, 0, 0 },
		.gpcs = { 3, 1 },
		.vfe_pol = { 1, 1, 0, 0, 0, 1, 0, 0 },
		.gws_not_connected = 1,
		.init = &buz_init,
	}
};

/*
 * I2C functions
 */
/* software I2C functions */
static int
zoran_i2c_getsda (void *data)
{
	struct zoran *zr = (struct zoran *) data;

	return (btread(ZR36057_I2CBR) >> 1) & 1;
}

static int
zoran_i2c_getscl (void *data)
{
	struct zoran *zr = (struct zoran *) data;

	return btread(ZR36057_I2CBR) & 1;
}

static void
zoran_i2c_setsda (void *data,
		  int   state)
{
	struct zoran *zr = (struct zoran *) data;

	if (state)
		zr->i2cbr |= 2;
	else
		zr->i2cbr &= ~2;
	btwrite(zr->i2cbr, ZR36057_I2CBR);
}

static void
zoran_i2c_setscl (void *data,
		  int   state)
{
	struct zoran *zr = (struct zoran *) data;

	if (state)
		zr->i2cbr |= 1;
	else
		zr->i2cbr &= ~1;
	btwrite(zr->i2cbr, ZR36057_I2CBR);
}

static int
zoran_i2c_client_register (struct i2c_client *client)
{
	struct zoran *zr = (struct zoran *) i2c_get_adapdata(client->adapter);
	int res = 0;

	dprintk(2,
		KERN_DEBUG "%s: i2c_client_register() - driver id = %d\n",
		ZR_DEVNAME(zr), client->driver->id);

	down(&zr->resource_lock);

	if (zr->user > 0) {
		/* we're already busy, so we keep a reference to
		 * them... Could do a lot of stuff here, but this
		 * is easiest. (Did I ever mention I'm a lazy ass?)
		 */
		res = -EBUSY;
		goto clientreg_unlock_and_return;
	}

	if (client->driver->id == zr->card.i2c_decoder)
		zr->decoder = client;
	else if (client->driver->id == zr->card.i2c_encoder)
		zr->encoder = client;
	else {
		res = -ENODEV;
		goto clientreg_unlock_and_return;
	}

clientreg_unlock_and_return:
	up(&zr->resource_lock);

	return res;
}

static int
zoran_i2c_client_unregister (struct i2c_client *client)
{
	struct zoran *zr = (struct zoran *) i2c_get_adapdata(client->adapter);
	int res = 0;

	dprintk(2, KERN_DEBUG "%s: i2c_client_unregister()\n", ZR_DEVNAME(zr));

	down(&zr->resource_lock);

	if (zr->user > 0) {
		res = -EBUSY;
		goto clientunreg_unlock_and_return;
	}

	/* try to locate it */
	if (client == zr->encoder) {
		zr->encoder = NULL;
	} else if (client == zr->decoder) {
		zr->decoder = NULL;
		snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "MJPEG[%d]", zr->id);
	}
clientunreg_unlock_and_return:
	up(&zr->resource_lock);
	return res;
}

static struct i2c_algo_bit_data zoran_i2c_bit_data_template = {
	.setsda = zoran_i2c_setsda,
	.setscl = zoran_i2c_setscl,
	.getsda = zoran_i2c_getsda,
	.getscl = zoran_i2c_getscl,
	.udelay = 10,
	.mdelay = 0,
	.timeout = 100,
};

static struct i2c_adapter zoran_i2c_adapter_template = {
	.name = "zr36057",
	.id = I2C_HW_B_ZR36067,
	.algo = NULL,
	.client_register = zoran_i2c_client_register,
	.client_unregister = zoran_i2c_client_unregister,
};

static int
zoran_register_i2c (struct zoran *zr)
{
	memcpy(&zr->i2c_algo, &zoran_i2c_bit_data_template,
	       sizeof(struct i2c_algo_bit_data));
	zr->i2c_algo.data = zr;
	memcpy(&zr->i2c_adapter, &zoran_i2c_adapter_template,
	       sizeof(struct i2c_adapter));
	strncpy(I2C_NAME(&zr->i2c_adapter), ZR_DEVNAME(zr),
		sizeof(I2C_NAME(&zr->i2c_adapter)) - 1);
	i2c_set_adapdata(&zr->i2c_adapter, zr);
	zr->i2c_adapter.algo_data = &zr->i2c_algo;
	return i2c_bit_add_bus(&zr->i2c_adapter);
}

static void
zoran_unregister_i2c (struct zoran *zr)
{
	i2c_bit_del_bus((&zr->i2c_adapter));
}

/* Check a zoran_params struct for correctness, insert default params */

int
zoran_check_jpg_settings (struct zoran              *zr,
			  struct zoran_jpg_settings *settings)
{
	int err = 0, err0 = 0;

	dprintk(4,
		KERN_DEBUG
		"%s: check_jpg_settings() - dec: %d, Hdcm: %d, Vdcm: %d, Tdcm: %d\n",
		ZR_DEVNAME(zr), settings->decimation, settings->HorDcm,
		settings->VerDcm, settings->TmpDcm);
	dprintk(4,
		KERN_DEBUG
		"%s: check_jpg_settings() - x: %d, y: %d, w: %d, y: %d\n",
		ZR_DEVNAME(zr), settings->img_x, settings->img_y,
		settings->img_width, settings->img_height);
	/* Check decimation, set default values for decimation = 1, 2, 4 */
	switch (settings->decimation) {
	case 1:

		settings->HorDcm = 1;
		settings->VerDcm = 1;
		settings->TmpDcm = 1;
		settings->field_per_buff = 2;
		settings->img_x = 0;
		settings->img_y = 0;
		settings->img_width = BUZ_MAX_WIDTH;
		settings->img_height = BUZ_MAX_HEIGHT / 2;
		break;
	case 2:

		settings->HorDcm = 2;
		settings->VerDcm = 1;
		settings->TmpDcm = 2;
		settings->field_per_buff = 1;
		settings->img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
		settings->img_y = 0;
		settings->img_width =
		    (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
		settings->img_height = BUZ_MAX_HEIGHT / 2;
		break;
	case 4:

		if (zr->card.type == DC10_new) {
			dprintk(1,
				KERN_DEBUG
				"%s: check_jpg_settings() - HDec by 4 is not supported on the DC10\n",
				ZR_DEVNAME(zr));
			err0++;
			break;
		}

		settings->HorDcm = 4;
		settings->VerDcm = 2;
		settings->TmpDcm = 2;
		settings->field_per_buff = 1;
		settings->img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
		settings->img_y = 0;
		settings->img_width =
		    (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
		settings->img_height = BUZ_MAX_HEIGHT / 2;
		break;
	case 0:

		/* We have to check the data the user has set */

		if (settings->HorDcm != 1 && settings->HorDcm != 2 &&
		    (zr->card.type == DC10_new || settings->HorDcm != 4))
			err0++;
		if (settings->VerDcm != 1 && settings->VerDcm != 2)
			err0++;
		if (settings->TmpDcm != 1 && settings->TmpDcm != 2)
			err0++;
		if (settings->field_per_buff != 1 &&
		    settings->field_per_buff != 2)
			err0++;
		if (settings->img_x < 0)
			err0++;
		if (settings->img_y < 0)
			err0++;
		if (settings->img_width < 0)
			err0++;
		if (settings->img_height < 0)
			err0++;
		if (settings->img_x + settings->img_width > BUZ_MAX_WIDTH)
			err0++;
		if (settings->img_y + settings->img_height >
		    BUZ_MAX_HEIGHT / 2)
			err0++;
		if (settings->HorDcm && settings->VerDcm) {
			if (settings->img_width %
			    (16 * settings->HorDcm) != 0)
				err0++;
			if (settings->img_height %
			    (8 * settings->VerDcm) != 0)
				err0++;
		}

		if (err0) {
			dprintk(1,
				KERN_ERR
				"%s: check_jpg_settings() - error in params for decimation = 0\n",
				ZR_DEVNAME(zr));
			err++;
		}
		break;
	default:
		dprintk(1,
			KERN_ERR
			"%s: check_jpg_settings() - decimation = %d, must be 0, 1, 2 or 4\n",
			ZR_DEVNAME(zr), settings->decimation);
		err++;
		break;
	}

	if (settings->jpg_comp.quality > 100)
		settings->jpg_comp.quality = 100;
	if (settings->jpg_comp.quality < 5)
		settings->jpg_comp.quality = 5;
	if (settings->jpg_comp.APPn < 0)
		settings->jpg_comp.APPn = 0;
	if (settings->jpg_comp.APPn > 15)
		settings->jpg_comp.APPn = 15;
	if (settings->jpg_comp.APP_len < 0)
		settings->jpg_comp.APP_len = 0;
	if (settings->jpg_comp.APP_len > 60)
		settings->jpg_comp.APP_len = 60;
	if (settings->jpg_comp.COM_len < 0)
		settings->jpg_comp.COM_len = 0;
	if (settings->jpg_comp.COM_len > 60)
		settings->jpg_comp.COM_len = 60;
	if (err)
		return -EINVAL;
	return 0;
}

void
zoran_open_init_params (struct zoran *zr)
{
	int i;

	/* User must explicitly set a window */
	zr->overlay_settings.is_set = 0;
	zr->overlay_mask = NULL;
	zr->overlay_active = ZORAN_FREE;

	zr->v4l_memgrab_active = 0;
	zr->v4l_overlay_active = 0;
	zr->v4l_grab_frame = NO_GRAB_ACTIVE;
	zr->v4l_grab_seq = 0;
	zr->v4l_settings.width = 192;
	zr->v4l_settings.height = 144;
	zr->v4l_settings.format = &zoran_formats[4];	/* YUY2 - YUV-4:2:2 packed */
	zr->v4l_settings.bytesperline =
	    zr->v4l_settings.width *
	    ((zr->v4l_settings.format->depth + 7) / 8);

	/* DMA ring stuff for V4L */
	zr->v4l_pend_tail = 0;
	zr->v4l_pend_head = 0;
	zr->v4l_sync_tail = 0;
	zr->v4l_buffers.active = ZORAN_FREE;
	for (i = 0; i < VIDEO_MAX_FRAME; i++) {
		zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER;	/* nothing going on */
	}
	zr->v4l_buffers.allocated = 0;

	for (i = 0; i < BUZ_MAX_FRAME; i++) {
		zr->jpg_buffers.buffer[i].state = BUZ_STATE_USER;	/* nothing going on */
	}
	zr->jpg_buffers.active = ZORAN_FREE;
	zr->jpg_buffers.allocated = 0;
	/* Set necessary params and call zoran_check_jpg_settings to set the defaults */
	zr->jpg_settings.decimation = 1;
	zr->jpg_settings.jpg_comp.quality = 50;	/* default compression factor 8 */
	if (zr->card.type != BUZ)
		zr->jpg_settings.odd_even = 1;
	else
		zr->jpg_settings.odd_even = 0;
	zr->jpg_settings.jpg_comp.APPn = 0;
	zr->jpg_settings.jpg_comp.APP_len = 0;	/* No APPn marker */
	memset(zr->jpg_settings.jpg_comp.APP_data, 0,
	       sizeof(zr->jpg_settings.jpg_comp.APP_data));
	zr->jpg_settings.jpg_comp.COM_len = 0;	/* No COM marker */
	memset(zr->jpg_settings.jpg_comp.COM_data, 0,
	       sizeof(zr->jpg_settings.jpg_comp.COM_data));
	zr->jpg_settings.jpg_comp.jpeg_markers =
	    JPEG_MARKER_DHT | JPEG_MARKER_DQT;
	i = zoran_check_jpg_settings(zr, &zr->jpg_settings);
	if (i)
		dprintk(1,
			KERN_ERR
			"%s: zoran_open_init_params() internal error\n",
			ZR_DEVNAME(zr));

	clear_interrupt_counters(zr);
	zr->testing = 0;
}

static void __devinit
test_interrupts (struct zoran *zr)
{
	DEFINE_WAIT(wait);
	int timeout, icr;

	clear_interrupt_counters(zr);

	zr->testing = 1;
	icr = btread(ZR36057_ICR);
	btwrite(0x78000000 | ZR36057_ICR_IntPinEn, ZR36057_ICR);
	prepare_to_wait(&zr->test_q, &wait, TASK_INTERRUPTIBLE);
	timeout = schedule_timeout(HZ);
	finish_wait(&zr->test_q, &wait);
	btwrite(0, ZR36057_ICR);
	btwrite(0x78000000, ZR36057_ISR);
	zr->testing = 0;
	dprintk(5, KERN_INFO "%s: Testing interrupts...\n", ZR_DEVNAME(zr));
	if (timeout) {
		dprintk(1, ": time spent: %d\n", 1 * HZ - timeout);
	}
	if (*zr_debug > 1)
		print_interrupts(zr);
	btwrite(icr, ZR36057_ICR);
}

static int __devinit
zr36057_init (struct zoran *zr)
{
	unsigned long mem;
	void *vdev;
	unsigned mem_needed;
	int j;
	int two = 2;
	int zero = 0;

	dprintk(1,
		KERN_INFO
		"%s: zr36057_init() - initializing card[%d], zr=%p\n",
		ZR_DEVNAME(zr), zr->id, zr);

	/* default setup of all parameters which will persist between opens */
	zr->user = 0;

	init_waitqueue_head(&zr->v4l_capq);
	init_waitqueue_head(&zr->jpg_capq);
	init_waitqueue_head(&zr->test_q);
	zr->jpg_buffers.allocated = 0;
	zr->v4l_buffers.allocated = 0;

	zr->buffer.base = (void *) vidmem;
	zr->buffer.width = 0;
	zr->buffer.height = 0;
	zr->buffer.depth = 0;
	zr->buffer.bytesperline = 0;

	/* Avoid nonsense settings from user for default input/norm */
	if (default_norm < VIDEO_MODE_PAL &&
	    default_norm > VIDEO_MODE_SECAM)
		default_norm = VIDEO_MODE_PAL;
	zr->norm = default_norm;
	if (!(zr->timing = zr->card.tvn[zr->norm])) {
		dprintk(1,
			KERN_WARNING
			"%s: zr36057_init() - default TV standard not supported by hardware. PAL will be used.\n",
			ZR_DEVNAME(zr));
		zr->norm = VIDEO_MODE_PAL;
		zr->timing = zr->card.tvn[zr->norm];
	}

	zr->input = default_input = (default_input ? 1 : 0);

	/* Should the following be reset at every open ? */
	zr->hue = 32768;
	zr->contrast = 32768;
	zr->saturation = 32768;
	zr->brightness = 32768;

	/* default setup (will be repeated at every open) */
	zoran_open_init_params(zr);

	/* allocate memory *before* doing anything to the hardware
	 * in case allocation fails */
	mem_needed = BUZ_NUM_STAT_COM * 4;
	mem = (unsigned long) kmalloc(mem_needed, GFP_KERNEL);
	vdev = (void *) kmalloc(sizeof(struct video_device), GFP_KERNEL);
	if (!mem || !vdev) {
		dprintk(1,