[deliverable/linux.git] / drivers / media / pci / ttpci / budget-core.c

/*
 * budget-core.c: driver for the SAA7146 based Budget DVB cards
 *
 * Compiled from various sources by Michael Hunold <michael@mihu.de>
 *
 * Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de>
 *
 * Copyright (C) 1999-2002 Ralph  Metzler
 *			 & Marcus Metzler for convergence integrated media GmbH
 *
 * 26feb2004 Support for FS Activy Card (Grundig tuner) by
 *	     Michael Dreher <michael@5dot1.de>,
 *	     Oliver Endriss <o.endriss@gmx.de>,
 *	     Andreas 'randy' Weinberger
 *
 * 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.
 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
 *
 *
 * the project's page is at https://linuxtv.org
 */


#include "budget.h"
#include "ttpci-eeprom.h"

#define TS_WIDTH		(2 * TS_SIZE)
#define TS_WIDTH_ACTIVY		TS_SIZE
#define TS_WIDTH_DVBC		TS_SIZE
#define TS_HEIGHT_MASK		0xf00
#define TS_HEIGHT_MASK_ACTIVY	0xc00
#define TS_HEIGHT_MASK_DVBC	0xe00
#define TS_MIN_BUFSIZE_K	188
#define TS_MAX_BUFSIZE_K	1410
#define TS_MAX_BUFSIZE_K_ACTIVY	564
#define TS_MAX_BUFSIZE_K_DVBC	1316
#define BUFFER_WARNING_WAIT	(30*HZ)

int budget_debug;
static int dma_buffer_size = TS_MIN_BUFSIZE_K;
module_param_named(debug, budget_debug, int, 0644);
module_param_named(bufsize, dma_buffer_size, int, 0444);
MODULE_PARM_DESC(debug, "Turn on/off budget debugging (default:off).");
MODULE_PARM_DESC(bufsize, "DMA buffer size in KB, default: 188, min: 188, max: 1410 (Activy: 564)");

/****************************************************************************
 * TT budget / WinTV Nova
 ****************************************************************************/

static int stop_ts_capture(struct budget *budget)
{
	dprintk(2, "budget: %p\n", budget);

	saa7146_write(budget->dev, MC1, MASK_20);	// DMA3 off
	SAA7146_IER_DISABLE(budget->dev, MASK_10);
	return 0;
}

static int start_ts_capture(struct budget *budget)
{
	struct saa7146_dev *dev = budget->dev;

	dprintk(2, "budget: %p\n", budget);

	if (!budget->feeding || !budget->fe_synced)
		return 0;

	saa7146_write(dev, MC1, MASK_20);	// DMA3 off

	memset(budget->grabbing, 0x00, budget->buffer_size);

	saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));

	budget->ttbp = 0;

	/*
	 *  Signal path on the Activy:
	 *
	 *  tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory
	 *
	 *  Since the tuner feeds 204 bytes packets into the SAA7146,
	 *  DMA3 is configured to strip the trailing 16 FEC bytes:
	 *      Pitch: 188, NumBytes3: 188, NumLines3: 1024
	 */

	switch(budget->card->type) {
	case BUDGET_FS_ACTIVY:
		saa7146_write(dev, DD1_INIT, 0x04000000);
		saa7146_write(dev, MC2, (MASK_09 | MASK_25));
		saa7146_write(dev, BRS_CTRL, 0x00000000);
		break;
	case BUDGET_PATCH:
		saa7146_write(dev, DD1_INIT, 0x00000200);
		saa7146_write(dev, MC2, (MASK_10 | MASK_26));
		saa7146_write(dev, BRS_CTRL, 0x60000000);
		break;
	case BUDGET_CIN1200C_MK3:
	case BUDGET_KNC1C_MK3:
	case BUDGET_KNC1C_TDA10024:
	case BUDGET_KNC1CP_MK3:
		if (budget->video_port == BUDGET_VIDEO_PORTA) {
			saa7146_write(dev, DD1_INIT, 0x06000200);
			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
			saa7146_write(dev, BRS_CTRL, 0x00000000);
		} else {
			saa7146_write(dev, DD1_INIT, 0x00000600);
			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
			saa7146_write(dev, BRS_CTRL, 0x60000000);
		}
		break;
	default:
		if (budget->video_port == BUDGET_VIDEO_PORTA) {
			saa7146_write(dev, DD1_INIT, 0x06000200);
			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
			saa7146_write(dev, BRS_CTRL, 0x00000000);
		} else {
			saa7146_write(dev, DD1_INIT, 0x02000600);
			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
			saa7146_write(dev, BRS_CTRL, 0x60000000);
		}
	}

	saa7146_write(dev, MC2, (MASK_08 | MASK_24));
	mdelay(10);

	saa7146_write(dev, BASE_ODD3, 0);
	if (budget->buffer_size > budget->buffer_height * budget->buffer_width) {
		// using odd/even buffers
		saa7146_write(dev, BASE_EVEN3, budget->buffer_height * budget->buffer_width);
	} else {
		// using a single buffer
		saa7146_write(dev, BASE_EVEN3, 0);
	}
	saa7146_write(dev, PROT_ADDR3, budget->buffer_size);
	saa7146_write(dev, BASE_PAGE3, budget->pt.dma | ME1 | 0x90);

	saa7146_write(dev, PITCH3, budget->buffer_width);
	saa7146_write(dev, NUM_LINE_BYTE3,
			(budget->buffer_height << 16) | budget->buffer_width);

	saa7146_write(dev, MC2, (MASK_04 | MASK_20));

	SAA7146_ISR_CLEAR(budget->dev, MASK_10);	/* VPE */
	SAA7146_IER_ENABLE(budget->dev, MASK_10);	/* VPE */
	saa7146_write(dev, MC1, (MASK_04 | MASK_20));	/* DMA3 on */

	return 0;
}

static int budget_read_fe_status(struct dvb_frontend *fe,
				 enum fe_status *status)
{
	struct budget *budget = (struct budget *) fe->dvb->priv;
	int synced;
	int ret;

	if (budget->read_fe_status)
		ret = budget->read_fe_status(fe, status);
	else
		ret = -EINVAL;

	if (!ret) {
		synced = (*status & FE_HAS_LOCK);
		if (synced != budget->fe_synced) {
			budget->fe_synced = synced;
			spin_lock(&budget->feedlock);
			if (synced)
				start_ts_capture(budget);
			else
				stop_ts_capture(budget);
			spin_unlock(&budget->feedlock);
		}
	}
	return ret;
}

static void vpeirq(unsigned long data)
{
	struct budget *budget = (struct budget *) data;
	u8 *mem = (u8 *) (budget->grabbing);
	u32 olddma = budget->ttbp;
	u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
	u32 count;

	/* Ensure streamed PCI data is synced to CPU */
	pci_dma_sync_sg_for_cpu(budget->dev->pci, budget->pt.slist, budget->pt.nents, PCI_DMA_FROMDEVICE);

	/* nearest lower position divisible by 188 */
	newdma -= newdma % 188;

	if (newdma >= budget->buffer_size)
		return;

	budget->ttbp = newdma;

	if (budget->feeding == 0 || newdma == olddma)
		return;

	if (newdma > olddma) {	/* no wraparound, dump olddma..newdma */
		count = newdma - olddma;
		dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
	} else {		/* wraparound, dump olddma..buflen and 0..newdma */
		count = budget->buffer_size - olddma;
		dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
		count += newdma;
		dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188);
	}

	if (count > budget->buffer_warning_threshold)
		budget->buffer_warnings++;

	if (budget->buffer_warnings && time_after(jiffies, budget->buffer_warning_time)) {
		printk("%s %s: used %d times >80%% of buffer (%u bytes now)\n",
			budget->dev->name, __func__, budget->buffer_warnings, count);
		budget->buffer_warning_time = jiffies + BUFFER_WARNING_WAIT;
		budget->buffer_warnings = 0;
	}
}


static int ttpci_budget_debiread_nolock(struct budget *budget, u32 config,
		int addr, int count, int nobusyloop)
{
	struct saa7146_dev *saa = budget->dev;
	int result;

	result = saa7146_wait_for_debi_done(saa, nobusyloop);
	if (result < 0)
		return result;

	saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff));
	saa7146_write(saa, DEBI_CONFIG, config);
	saa7146_write(saa, DEBI_PAGE, 0);
	saa7146_write(saa, MC2, (2 << 16) | 2);

	result = saa7146_wait_for_debi_done(saa, nobusyloop);
	if (result < 0)
		return result;

	result = saa7146_read(saa, DEBI_AD);
	result &= (0xffffffffUL >> ((4 - count) * 8));
	return result;
}

int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count,
			  int uselocks, int nobusyloop)
{
	if (count > 4 || count <= 0)
		return 0;

	if (uselocks) {
		unsigned long flags;
		int result;

		spin_lock_irqsave(&budget->debilock, flags);
		result = ttpci_budget_debiread_nolock(budget, config, addr,
						      count, nobusyloop);
		spin_unlock_irqrestore(&budget->debilock, flags);
		return result;
	}
	return ttpci_budget_debiread_nolock(budget, config, addr,
					    count, nobusyloop);
}

static int ttpci_budget_debiwrite_nolock(struct budget *budget, u32 config,
		int addr, int count, u32 value, int nobusyloop)
{
	struct saa7146_dev *saa = budget->dev;
	int result;

	result = saa7146_wait_for_debi_done(saa, nobusyloop);
	if (result < 0)
		return result;

	saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x00000 | (addr & 0xffff));
	saa7146_write(saa, DEBI_CONFIG, config);
	saa7146_write(saa, DEBI_PAGE, 0);
	saa7146_write(saa, DEBI_AD, value);
	saa7146_write(saa, MC2, (2 << 16) | 2);

	result = saa7146_wait_for_debi_done(saa, nobusyloop);
	return result < 0 ? result : 0;
}

int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr,
			   int count, u32 value, int uselocks, int nobusyloop)
{
	if (count > 4 || count <= 0)
		return 0;

	if (uselocks) {
		unsigned long flags;
		int result;

		spin_lock_irqsave(&budget->debilock, flags);
		result = ttpci_budget_debiwrite_nolock(budget, config, addr,
						count, value, nobusyloop);
		spin_unlock_irqrestore(&budget->debilock, flags);
		return result;
	}
	return ttpci_budget_debiwrite_nolock(budget, config, addr,
					     count, value, nobusyloop);
}


/****************************************************************************
 * DVB API SECTION
 ****************************************************************************/

static int budget_start_feed(struct dvb_demux_feed *feed)
{
	struct dvb_demux *demux = feed->demux;
	struct budget *budget = (struct budget *) demux->priv;
	int status = 0;

	dprintk(2, "budget: %p\n", budget);

	if (!demux->dmx.frontend)
		return -EINVAL;

	spin_lock(&budget->feedlock);
	feed->pusi_seen = 0; /* have a clean section start */
	if (budget->feeding++ == 0)
		status = start_ts_capture(budget);
	spin_unlock(&budget->feedlock);
	return status;
}

static int budget_stop_feed(struct dvb_demux_feed *feed)
{
	struct dvb_demux *demux = feed->demux;
	struct budget *budget = (struct budget *) demux->priv;
	int status = 0;

	dprintk(2, "budget: %p\n", budget);

	spin_lock(&budget->feedlock);
	if (--budget->feeding == 0)
		status = stop_ts_capture(budget);
	spin_unlock(&budget->feedlock);
	return status;
}

static int budget_register(struct budget *budget)
{
	struct dvb_demux *dvbdemux = &budget->demux;
	int ret;

	dprintk(2, "budget: %p\n", budget);

	dvbdemux->priv = (void *) budget;

	dvbdemux->filternum = 256;
	dvbdemux->feednum = 256;
	dvbdemux->start_feed = budget_start_feed;
	dvbdemux->stop_feed = budget_stop_feed;
	dvbdemux->write_to_decoder = NULL;

	dvbdemux->dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING |
				      DMX_MEMORY_BASED_FILTERING);

	dvb_dmx_init(&budget->demux);

	budget->dmxdev.filternum = 256;
	budget->dmxdev.demux = &dvbdemux->dmx;
	budget->dmxdev.capabilities = 0;

	dvb_dmxdev_init(&budget->dmxdev, &budget->dvb_adapter);

	budget->hw_frontend.source = DMX_FRONTEND_0;

	ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);

	if (ret < 0)
		return ret;

	budget->mem_frontend.source = DMX_MEMORY_FE;
	ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
	if (ret < 0)
		return ret;

	ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
	if (ret < 0)
		return ret;

	dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);

	return 0;
}

static void budget_unregister(struct budget *budget)
{
	struct dvb_demux *dvbdemux = &budget->demux;

	dprintk(2, "budget: %p\n", budget);

	dvb_net_release(&budget->dvb_net);

	dvbdemux->dmx.close(&dvbdemux->dmx);
	dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend);
	dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend);

	dvb_dmxdev_release(&budget->dmxdev);
	dvb_dmx_release(&budget->demux);
}

int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev,
		      struct saa7146_pci_extension_data *info,
		      struct module *owner, short *adapter_nums)
{
	int ret = 0;
	struct budget_info *bi = info->ext_priv;
	int max_bufsize;
	int height_mask;

	memset(budget, 0, sizeof(struct budget));

	dprintk(2, "dev: %p, budget: %p\n", dev, budget);

	budget->card = bi;
	budget->dev = (struct saa7146_dev *) dev;

	switch(budget->card->type) {
	case BUDGET_FS_ACTIVY:
		budget->buffer_width = TS_WIDTH_ACTIVY;
		max_bufsize = TS_MAX_BUFSIZE_K_ACTIVY;
		height_mask = TS_HEIGHT_MASK_ACTIVY;
		break;

	case BUDGET_KNC1C:
	case BUDGET_KNC1CP:
	case BUDGET_CIN1200C:
	case BUDGET_KNC1C_MK3:
	case BUDGET_KNC1C_TDA10024:
	case BUDGET_KNC1CP_MK3:
	case BUDGET_CIN1200C_MK3:
		budget->buffer_width = TS_WIDTH_DVBC;
		max_bufsize = TS_MAX_BUFSIZE_K_DVBC;
		height_mask = TS_HEIGHT_MASK_DVBC;
		break;

	default:
		budget->buffer_width = TS_WIDTH;
		max_bufsize = TS_MAX_BUFSIZE_K;
		height_mask = TS_HEIGHT_MASK;
	}

	if (dma_buffer_size < TS_MIN_BUFSIZE_K)
		dma_buffer_size = TS_MIN_BUFSIZE_K;
	else if (dma_buffer_size > max_bufsize)
		dma_buffer_size = max_bufsize;

	budget->buffer_height = dma_buffer_size * 1024 / budget->buffer_width;
	if (budget->buffer_height > 0xfff) {
		budget->buffer_height /= 2;
		budget->buffer_height &= height_mask;
		budget->buffer_size = 2 * budget->buffer_height * budget->buffer_width;
	} else {
		budget->buffer_height &= height_mask;
		budget->buffer_size = budget->buffer_height * budget->buffer_width;
	}
	budget->buffer_warning_threshold = budget->buffer_size * 80/100;
	budget->buffer_warnings = 0;
	budget->buffer_warning_time = jiffies;

	dprintk(2, "%s: buffer type = %s, width = %d, height = %d\n",
		budget->dev->name,
		budget->buffer_size > budget->buffer_width * budget->buffer_height ? "odd/even" : "single",
		budget->buffer_width, budget->buffer_height);
	printk("%s: dma buffer size %u\n", budget->dev->name, budget->buffer_size);

	ret = dvb_register_adapter(&budget->dvb_adapter, budget->card->name,
				   owner, &budget->dev->pci->dev, adapter_nums);
	if (ret < 0)
		return ret;

	/* set dd1 stream a & b */
	saa7146_write(dev, DD1_STREAM_B, 0x00000000);
	saa7146_write(dev, MC2, (MASK_09 | MASK_25));
	saa7146_write(dev, MC2, (MASK_10 | MASK_26));
	saa7146_write(dev, DD1_INIT, 0x02000000);
	saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));

	if (bi->type != BUDGET_FS_ACTIVY)
		budget->video_port = BUDGET_VIDEO_PORTB;
	else
		budget->video_port = BUDGET_VIDEO_PORTA;
	spin_lock_init(&budget->feedlock);
	spin_lock_init(&budget->debilock);

	/* the Siemens DVB needs this if you want to have the i2c chips
	   get recognized before the main driver is loaded */
	if (bi->type != BUDGET_FS_ACTIVY)
		saa7146_write(dev, GPIO_CTRL, 0x500000);	/* GPIO 3 = 1 */

	strlcpy(budget->i2c_adap.name, budget->card->name, sizeof(budget->i2c_adap.name));

	saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120);
	strcpy(budget->i2c_adap.name, budget->card->name);

	if (i2c_add_adapter(&budget->i2c_adap) < 0) {
		ret = -ENOMEM;
		goto err_dvb_unregister;
	}

	ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac);

	budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, budget->buffer_size, &budget->pt);
	if (NULL == budget->grabbing) {
		ret = -ENOMEM;
		goto err_del_i2c;
	}

	saa7146_write(dev, PCI_BT_V1, 0x001c0000);
	/* upload all */
	saa7146_write(dev, GPIO_CTRL, 0x000000);

	tasklet_init(&budget->vpe_tasklet, vpeirq, (unsigned long) budget);

	/* frontend power on */
	if (bi->type != BUDGET_FS_ACTIVY)
		saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);

	if ((ret = budget_register(budget)) == 0)
		return 0; /* Everything OK */

	/* An error occurred, cleanup resources */
	saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);

err_del_i2c:
	i2c_del_adapter(&budget->i2c_adap);

err_dvb_unregister:
	dvb_unregister_adapter(&budget->dvb_adapter);

	return ret;
}

void ttpci_budget_init_hooks(struct budget *budget)
{
	if (budget->dvb_frontend && !budget->read_fe_status) {
		budget->read_fe_status = budget->dvb_frontend->ops.read_status;
		budget->dvb_frontend->ops.read_status = budget_read_fe_status;
	}
}

int ttpci_budget_deinit(struct budget *budget)
{
	struct saa7146_dev *dev = budget->dev;

	dprintk(2, "budget: %p\n", budget);

	budget_unregister(budget);

	tasklet_kill(&budget->vpe_tasklet);

	saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);

	i2c_del_adapter(&budget->i2c_adap);

	dvb_unregister_adapter(&budget->dvb_adapter);

	return 0;
}

void ttpci_budget_irq10_handler(struct saa7146_dev *dev, u32 * isr)
{
	struct budget *budget = (struct budget *) dev->ext_priv;

	dprintk(8, "dev: %p, budget: %p\n", dev, budget);

	if (*isr & MASK_10)
		tasklet_schedule(&budget->vpe_tasklet);
}

void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port)
{
	struct budget *budget = (struct budget *) dev->ext_priv;

	spin_lock(&budget->feedlock);
	budget->video_port = video_port;
	if (budget->feeding) {
		stop_ts_capture(budget);
		start_ts_capture(budget);
	}
	spin_unlock(&budget->feedlock);
}

EXPORT_SYMBOL_GPL(ttpci_budget_debiread);
EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite);
EXPORT_SYMBOL_GPL(ttpci_budget_init);
EXPORT_SYMBOL_GPL(ttpci_budget_init_hooks);
EXPORT_SYMBOL_GPL(ttpci_budget_deinit);
EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler);
EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port);
EXPORT_SYMBOL_GPL(budget_debug);

MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4 LT	1	/*
	2	* budget-core.c: driver for the SAA7146 based Budget DVB cards
	3	*
	4	* Compiled from various sources by Michael Hunold <michael@mihu.de>
	5	*
	6	* Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de>
	7	*
	8	* Copyright (C) 1999-2002 Ralph Metzler
	9	* & Marcus Metzler for convergence integrated media GmbH
	10	*
	11	* 26feb2004 Support for FS Activy Card (Grundig tuner) by
	12	* Michael Dreher <michael@5dot1.de>,
	13	* Oliver Endriss <o.endriss@gmx.de>,
	14	* Andreas 'randy' Weinberger
	15	*
	16	* This program is free software; you can redistribute it and/or
	17	* modify it under the terms of the GNU General Public License
	18	* as published by the Free Software Foundation; either version 2
	19	* of the License, or (at your option) any later version.
	20	*
	21	*
	22	* This program is distributed in the hope that it will be useful,
	23	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	24	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	25	* GNU General Public License for more details.
	26	*
	27	*
	28	* You should have received a copy of the GNU General Public License
	29	* along with this program; if not, write to the Free Software
	30	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	31	* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
	32	*
	33	*
991ce92f	34	* the project's page is at https://linuxtv.org
1da177e4 LT	35	*/
1da177e4 LT	36
1da177e4 LT	37
	38	#include "budget.h"
	39	#include "ttpci-eeprom.h"
	40
afa47abf IS	41	#define TS_WIDTH (2 * TS_SIZE)
afa47abf IS	42	#define TS_WIDTH_ACTIVY TS_SIZE
fd9c66e2	43	#define TS_WIDTH_DVBC TS_SIZE
afa47abf IS	44	#define TS_HEIGHT_MASK 0xf00
afa47abf IS	45	#define TS_HEIGHT_MASK_ACTIVY 0xc00
fd9c66e2	46	#define TS_HEIGHT_MASK_DVBC 0xe00
afa47abf IS	47	#define TS_MIN_BUFSIZE_K 188
	48	#define TS_MAX_BUFSIZE_K 1410
	49	#define TS_MAX_BUFSIZE_K_ACTIVY 564
fd9c66e2	50	#define TS_MAX_BUFSIZE_K_DVBC 1316
afa47abf IS	51	#define BUFFER_WARNING_WAIT (30*HZ)
afa47abf IS	52
1da177e4	53	int budget_debug;
afa47abf	54	static int dma_buffer_size = TS_MIN_BUFSIZE_K;
1da177e4	55	module_param_named(debug, budget_debug, int, 0644);
afa47abf	56	module_param_named(bufsize, dma_buffer_size, int, 0444);
1da177e4	57	MODULE_PARM_DESC(debug, "Turn on/off budget debugging (default:off).");
afa47abf	58	MODULE_PARM_DESC(bufsize, "DMA buffer size in KB, default: 188, min: 188, max: 1410 (Activy: 564)");
1da177e4 LT	59
	60	/****************************************************************************
	61	* TT budget / WinTV Nova
	62	****************************************************************************/
	63
	64	static int stop_ts_capture(struct budget *budget)
	65	{
	66	dprintk(2, "budget: %p\n", budget);
	67
1da177e4 LT	68	saa7146_write(budget->dev, MC1, MASK_20); // DMA3 off
	69	SAA7146_IER_DISABLE(budget->dev, MASK_10);
	70	return 0;
	71	}
	72
	73	static int start_ts_capture(struct budget *budget)
	74	{
	75	struct saa7146_dev *dev = budget->dev;
	76
	77	dprintk(2, "budget: %p\n", budget);
	78
32e4c3a5 OE	79	if (!budget->feeding \|\| !budget->fe_synced)
32e4c3a5 OE	80	return 0;
1da177e4 LT	81
	82	saa7146_write(dev, MC1, MASK_20); // DMA3 off
	83
afa47abf	84	memset(budget->grabbing, 0x00, budget->buffer_size);
1da177e4 LT	85
	86	saa7146_write(dev, PCI_BT_V1, 0x001c0000 \| (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));
	87
1da177e4 LT	88	budget->ttbp = 0;
	89
	90	/*
	91	* Signal path on the Activy:
	92	*
	93	* tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory
	94	*
	95	* Since the tuner feeds 204 bytes packets into the SAA7146,
	96	* DMA3 is configured to strip the trailing 16 FEC bytes:
	97	* Pitch: 188, NumBytes3: 188, NumLines3: 1024
	98	*/
	99
9101e622	100	switch(budget->card->type) {
1da177e4 LT	101	case BUDGET_FS_ACTIVY:
	102	saa7146_write(dev, DD1_INIT, 0x04000000);
	103	saa7146_write(dev, MC2, (MASK_09 \| MASK_25));
	104	saa7146_write(dev, BRS_CTRL, 0x00000000);
	105	break;
	106	case BUDGET_PATCH:
	107	saa7146_write(dev, DD1_INIT, 0x00000200);
	108	saa7146_write(dev, MC2, (MASK_10 \| MASK_26));
	109	saa7146_write(dev, BRS_CTRL, 0x60000000);
	110	break;
aa323ac8 HB	111	case BUDGET_CIN1200C_MK3:
aa323ac8 HB	112	case BUDGET_KNC1C_MK3:
93165b77	113	case BUDGET_KNC1C_TDA10024:
aa323ac8 HB	114	case BUDGET_KNC1CP_MK3:
	115	if (budget->video_port == BUDGET_VIDEO_PORTA) {
	116	saa7146_write(dev, DD1_INIT, 0x06000200);
	117	saa7146_write(dev, MC2, (MASK_09 \| MASK_25 \| MASK_10 \| MASK_26));
	118	saa7146_write(dev, BRS_CTRL, 0x00000000);
	119	} else {
	120	saa7146_write(dev, DD1_INIT, 0x00000600);
	121	saa7146_write(dev, MC2, (MASK_09 \| MASK_25 \| MASK_10 \| MASK_26));
	122	saa7146_write(dev, BRS_CTRL, 0x60000000);
	123	}
	124	break;
1da177e4 LT	125	default:
	126	if (budget->video_port == BUDGET_VIDEO_PORTA) {
	127	saa7146_write(dev, DD1_INIT, 0x06000200);
	128	saa7146_write(dev, MC2, (MASK_09 \| MASK_25 \| MASK_10 \| MASK_26));
	129	saa7146_write(dev, BRS_CTRL, 0x00000000);
	130	} else {
	131	saa7146_write(dev, DD1_INIT, 0x02000600);
	132	saa7146_write(dev, MC2, (MASK_09 \| MASK_25 \| MASK_10 \| MASK_26));
	133	saa7146_write(dev, BRS_CTRL, 0x60000000);
	134	}
	135	}
	136
	137	saa7146_write(dev, MC2, (MASK_08 \| MASK_24));
	138	mdelay(10);
	139
	140	saa7146_write(dev, BASE_ODD3, 0);
fd9c66e2 HB	141	if (budget->buffer_size > budget->buffer_height * budget->buffer_width) {
	142	// using odd/even buffers
	143	saa7146_write(dev, BASE_EVEN3, budget->buffer_height * budget->buffer_width);
	144	} else {
	145	// using a single buffer
	146	saa7146_write(dev, BASE_EVEN3, 0);
	147	}
afa47abf	148	saa7146_write(dev, PROT_ADDR3, budget->buffer_size);
1da177e4 LT	149	saa7146_write(dev, BASE_PAGE3, budget->pt.dma \| ME1 \| 0x90);
1da177e4 LT	150
afa47abf IS	151	saa7146_write(dev, PITCH3, budget->buffer_width);
	152	saa7146_write(dev, NUM_LINE_BYTE3,
	153	(budget->buffer_height << 16) \| budget->buffer_width);
1da177e4 LT	154
	155	saa7146_write(dev, MC2, (MASK_04 \| MASK_20));
	156
	157	SAA7146_ISR_CLEAR(budget->dev, MASK_10); /* VPE */
	158	SAA7146_IER_ENABLE(budget->dev, MASK_10); /* VPE */
	159	saa7146_write(dev, MC1, (MASK_04 \| MASK_20)); /* DMA3 on */
	160
32e4c3a5 OE	161	return 0;
	162	}
	163
0df289a2 MCC	164	static int budget_read_fe_status(struct dvb_frontend *fe,
0df289a2 MCC	165	enum fe_status *status)
32e4c3a5 OE	166	{
	167	struct budget budget = (struct budget ) fe->dvb->priv;
	168	int synced;
	169	int ret;
	170
	171	if (budget->read_fe_status)
	172	ret = budget->read_fe_status(fe, status);
	173	else
	174	ret = -EINVAL;
	175
	176	if (!ret) {
	177	synced = (*status & FE_HAS_LOCK);
	178	if (synced != budget->fe_synced) {
	179	budget->fe_synced = synced;
	180	spin_lock(&budget->feedlock);
	181	if (synced)
	182	start_ts_capture(budget);
	183	else
	184	stop_ts_capture(budget);
	185	spin_unlock(&budget->feedlock);
	186	}
	187	}
	188	return ret;
1da177e4 LT	189	}
	190
	191	static void vpeirq(unsigned long data)
	192	{
	193	struct budget budget = (struct budget ) data;
	194	u8 mem = (u8 ) (budget->grabbing);
	195	u32 olddma = budget->ttbp;
	196	u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
afa47abf	197	u32 count;
1da177e4	198
87c3019d JB	199	/* Ensure streamed PCI data is synced to CPU */
	200	pci_dma_sync_sg_for_cpu(budget->dev->pci, budget->pt.slist, budget->pt.nents, PCI_DMA_FROMDEVICE);
	201
1da177e4 LT	202	/* nearest lower position divisible by 188 */
	203	newdma -= newdma % 188;
	204
afa47abf	205	if (newdma >= budget->buffer_size)
1da177e4 LT	206	return;
	207
	208	budget->ttbp = newdma;
	209
	210	if (budget->feeding == 0 \|\| newdma == olddma)
	211	return;
	212
	213	if (newdma > olddma) { /* no wraparound, dump olddma..newdma */
afa47abf IS	214	count = newdma - olddma;
afa47abf IS	215	dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
1da177e4	216	} else { /* wraparound, dump olddma..buflen and 0..newdma */
afa47abf IS	217	count = budget->buffer_size - olddma;
	218	dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
	219	count += newdma;
1da177e4 LT	220	dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188);
1da177e4 LT	221	}
afa47abf IS	222
	223	if (count > budget->buffer_warning_threshold)
	224	budget->buffer_warnings++;
	225
	226	if (budget->buffer_warnings && time_after(jiffies, budget->buffer_warning_time)) {
	227	printk("%s %s: used %d times >80%% of buffer (%u bytes now)\n",
3ca7fc84	228	budget->dev->name, __func__, budget->buffer_warnings, count);
afa47abf IS	229	budget->buffer_warning_time = jiffies + BUFFER_WARNING_WAIT;
	230	budget->buffer_warnings = 0;
	231	}
1da177e4 LT	232	}
	233
	234
65adb86d HV	235	static int ttpci_budget_debiread_nolock(struct budget *budget, u32 config,
65adb86d HV	236	int addr, int count, int nobusyloop)
1da177e4 LT	237	{
1da177e4 LT	238	struct saa7146_dev *saa = budget->dev;
65adb86d	239	int result;
1da177e4	240
65adb86d HV	241	result = saa7146_wait_for_debi_done(saa, nobusyloop);
65adb86d HV	242	if (result < 0)
1da177e4	243	return result;
1da177e4 LT	244
	245	saa7146_write(saa, DEBI_COMMAND, (count << 17) \| 0x10000 \| (addr & 0xffff));
	246	saa7146_write(saa, DEBI_CONFIG, config);
	247	saa7146_write(saa, DEBI_PAGE, 0);
	248	saa7146_write(saa, MC2, (2 << 16) \| 2);
	249
65adb86d HV	250	result = saa7146_wait_for_debi_done(saa, nobusyloop);
65adb86d HV	251	if (result < 0)
1da177e4	252	return result;
1da177e4 LT	253
	254	result = saa7146_read(saa, DEBI_AD);
	255	result &= (0xffffffffUL >> ((4 - count) * 8));
1da177e4 LT	256	return result;
	257	}
	258
65adb86d HV	259	int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count,
65adb86d HV	260	int uselocks, int nobusyloop)
1da177e4	261	{
1da177e4 LT	262	if (count > 4 \|\| count <= 0)
	263	return 0;
	264
65adb86d HV	265	if (uselocks) {
	266	unsigned long flags;
	267	int result;
1da177e4	268
65adb86d HV	269	spin_lock_irqsave(&budget->debilock, flags);
	270	result = ttpci_budget_debiread_nolock(budget, config, addr,
	271	count, nobusyloop);
	272	spin_unlock_irqrestore(&budget->debilock, flags);
1da177e4 LT	273	return result;
1da177e4 LT	274	}
65adb86d HV	275	return ttpci_budget_debiread_nolock(budget, config, addr,
	276	count, nobusyloop);
	277	}
	278
	279	static int ttpci_budget_debiwrite_nolock(struct budget *budget, u32 config,
	280	int addr, int count, u32 value, int nobusyloop)
	281	{
	282	struct saa7146_dev *saa = budget->dev;
	283	int result;
	284
	285	result = saa7146_wait_for_debi_done(saa, nobusyloop);
	286	if (result < 0)
	287	return result;
1da177e4 LT	288
	289	saa7146_write(saa, DEBI_COMMAND, (count << 17) \| 0x00000 \| (addr & 0xffff));
	290	saa7146_write(saa, DEBI_CONFIG, config);
	291	saa7146_write(saa, DEBI_PAGE, 0);
	292	saa7146_write(saa, DEBI_AD, value);
	293	saa7146_write(saa, MC2, (2 << 16) \| 2);
	294
65adb86d HV	295	result = saa7146_wait_for_debi_done(saa, nobusyloop);
	296	return result < 0 ? result : 0;
	297	}
1da177e4	298
65adb86d HV	299	int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr,
	300	int count, u32 value, int uselocks, int nobusyloop)
	301	{
	302	if (count > 4 \|\| count <= 0)
	303	return 0;
	304
	305	if (uselocks) {
	306	unsigned long flags;
	307	int result;
	308
	309	spin_lock_irqsave(&budget->debilock, flags);
	310	result = ttpci_budget_debiwrite_nolock(budget, config, addr,
	311	count, value, nobusyloop);
1da177e4	312	spin_unlock_irqrestore(&budget->debilock, flags);
65adb86d HV	313	return result;
	314	}
	315	return ttpci_budget_debiwrite_nolock(budget, config, addr,
	316	count, value, nobusyloop);
1da177e4 LT	317	}
	318
	319
	320	/****************************************************************************
	321	* DVB API SECTION
	322	****************************************************************************/
	323
	324	static int budget_start_feed(struct dvb_demux_feed *feed)
	325	{
	326	struct dvb_demux *demux = feed->demux;
	327	struct budget budget = (struct budget ) demux->priv;
32e4c3a5	328	int status = 0;
1da177e4 LT	329
	330	dprintk(2, "budget: %p\n", budget);
	331
	332	if (!demux->dmx.frontend)
	333	return -EINVAL;
	334
	335	spin_lock(&budget->feedlock);
	336	feed->pusi_seen = 0; /* have a clean section start */
32e4c3a5 OE	337	if (budget->feeding++ == 0)
32e4c3a5 OE	338	status = start_ts_capture(budget);
1da177e4 LT	339	spin_unlock(&budget->feedlock);
	340	return status;
	341	}
	342
	343	static int budget_stop_feed(struct dvb_demux_feed *feed)
	344	{
	345	struct dvb_demux *demux = feed->demux;
	346	struct budget budget = (struct budget ) demux->priv;
32e4c3a5	347	int status = 0;
1da177e4 LT	348
	349	dprintk(2, "budget: %p\n", budget);
	350
	351	spin_lock(&budget->feedlock);
32e4c3a5 OE	352	if (--budget->feeding == 0)
32e4c3a5 OE	353	status = stop_ts_capture(budget);
1da177e4 LT	354	spin_unlock(&budget->feedlock);
	355	return status;
	356	}
	357
	358	static int budget_register(struct budget *budget)
	359	{
	360	struct dvb_demux *dvbdemux = &budget->demux;
	361	int ret;
	362
	363	dprintk(2, "budget: %p\n", budget);
	364
	365	dvbdemux->priv = (void *) budget;
	366
	367	dvbdemux->filternum = 256;
	368	dvbdemux->feednum = 256;
	369	dvbdemux->start_feed = budget_start_feed;
	370	dvbdemux->stop_feed = budget_stop_feed;
	371	dvbdemux->write_to_decoder = NULL;
	372
	373	dvbdemux->dmx.capabilities = (DMX_TS_FILTERING \| DMX_SECTION_FILTERING \|
	374	DMX_MEMORY_BASED_FILTERING);
	375
	376	dvb_dmx_init(&budget->demux);
	377
	378	budget->dmxdev.filternum = 256;
	379	budget->dmxdev.demux = &dvbdemux->dmx;
	380	budget->dmxdev.capabilities = 0;
	381
fdc53a6d	382	dvb_dmxdev_init(&budget->dmxdev, &budget->dvb_adapter);
1da177e4 LT	383
	384	budget->hw_frontend.source = DMX_FRONTEND_0;
	385
	386	ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);
	387
	388	if (ret < 0)
	389	return ret;
	390
	391	budget->mem_frontend.source = DMX_MEMORY_FE;
	392	ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
	393	if (ret < 0)
	394	return ret;
	395
	396	ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
	397	if (ret < 0)
	398	return ret;
	399
fdc53a6d	400	dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);
1da177e4 LT	401
	402	return 0;
	403	}
	404
	405	static void budget_unregister(struct budget *budget)
	406	{
	407	struct dvb_demux *dvbdemux = &budget->demux;
	408
	409	dprintk(2, "budget: %p\n", budget);
	410
	411	dvb_net_release(&budget->dvb_net);
	412
	413	dvbdemux->dmx.close(&dvbdemux->dmx);
	414	dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend);
	415	dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend);
	416
	417	dvb_dmxdev_release(&budget->dmxdev);
	418	dvb_dmx_release(&budget->demux);
	419	}
	420
	421	int ttpci_budget_init(struct budget budget, struct saa7146_dev dev,
	422	struct saa7146_pci_extension_data *info,
26dc4d04	423	struct module owner, short adapter_nums)
1da177e4	424	{
1da177e4 LT	425	int ret = 0;
1da177e4 LT	426	struct budget_info *bi = info->ext_priv;
afa47abf IS	427	int max_bufsize;
afa47abf IS	428	int height_mask;
1da177e4 LT	429
	430	memset(budget, 0, sizeof(struct budget));
	431
	432	dprintk(2, "dev: %p, budget: %p\n", dev, budget);
	433
	434	budget->card = bi;
	435	budget->dev = (struct saa7146_dev *) dev;
	436
fd9c66e2 HB	437	switch(budget->card->type) {
fd9c66e2 HB	438	case BUDGET_FS_ACTIVY:
afa47abf IS	439	budget->buffer_width = TS_WIDTH_ACTIVY;
	440	max_bufsize = TS_MAX_BUFSIZE_K_ACTIVY;
	441	height_mask = TS_HEIGHT_MASK_ACTIVY;
fd9c66e2 HB	442	break;
	443
	444	case BUDGET_KNC1C:
	445	case BUDGET_KNC1CP:
	446	case BUDGET_CIN1200C:
aa323ac8	447	case BUDGET_KNC1C_MK3:
93165b77	448	case BUDGET_KNC1C_TDA10024:
aa323ac8 HB	449	case BUDGET_KNC1CP_MK3:
aa323ac8 HB	450	case BUDGET_CIN1200C_MK3:
fd9c66e2 HB	451	budget->buffer_width = TS_WIDTH_DVBC;
	452	max_bufsize = TS_MAX_BUFSIZE_K_DVBC;
	453	height_mask = TS_HEIGHT_MASK_DVBC;
	454	break;
	455
	456	default:
afa47abf IS	457	budget->buffer_width = TS_WIDTH;
	458	max_bufsize = TS_MAX_BUFSIZE_K;
	459	height_mask = TS_HEIGHT_MASK;
	460	}
	461
	462	if (dma_buffer_size < TS_MIN_BUFSIZE_K)
	463	dma_buffer_size = TS_MIN_BUFSIZE_K;
	464	else if (dma_buffer_size > max_bufsize)
	465	dma_buffer_size = max_bufsize;
	466
	467	budget->buffer_height = dma_buffer_size * 1024 / budget->buffer_width;
fd9c66e2 HB	468	if (budget->buffer_height > 0xfff) {
	469	budget->buffer_height /= 2;
	470	budget->buffer_height &= height_mask;
	471	budget->buffer_size = 2 * budget->buffer_height * budget->buffer_width;
	472	} else {
	473	budget->buffer_height &= height_mask;
	474	budget->buffer_size = budget->buffer_height * budget->buffer_width;
	475	}
afa47abf IS	476	budget->buffer_warning_threshold = budget->buffer_size * 80/100;
	477	budget->buffer_warnings = 0;
	478	budget->buffer_warning_time = jiffies;
	479
fd9c66e2 HB	480	dprintk(2, "%s: buffer type = %s, width = %d, height = %d\n",
	481	budget->dev->name,
	482	budget->buffer_size > budget->buffer_width * budget->buffer_height ? "odd/even" : "single",
	483	budget->buffer_width, budget->buffer_height);
afa47abf IS	484	printk("%s: dma buffer size %u\n", budget->dev->name, budget->buffer_size);
afa47abf IS	485
78e92006	486	ret = dvb_register_adapter(&budget->dvb_adapter, budget->card->name,
26dc4d04	487	owner, &budget->dev->pci->dev, adapter_nums);
78e92006	488	if (ret < 0)
dcdda65f	489	return ret;
1da177e4 LT	490
	491	/* set dd1 stream a & b */
	492	saa7146_write(dev, DD1_STREAM_B, 0x00000000);
	493	saa7146_write(dev, MC2, (MASK_09 \| MASK_25));
	494	saa7146_write(dev, MC2, (MASK_10 \| MASK_26));
	495	saa7146_write(dev, DD1_INIT, 0x02000000);
	496	saa7146_write(dev, MC2, (MASK_09 \| MASK_25 \| MASK_10 \| MASK_26));
	497
	498	if (bi->type != BUDGET_FS_ACTIVY)
	499	budget->video_port = BUDGET_VIDEO_PORTB;
	500	else
	501	budget->video_port = BUDGET_VIDEO_PORTA;
	502	spin_lock_init(&budget->feedlock);
	503	spin_lock_init(&budget->debilock);
	504
	505	/* the Siemens DVB needs this if you want to have the i2c chips
	506	get recognized before the main driver is loaded */
	507	if (bi->type != BUDGET_FS_ACTIVY)
	508	saa7146_write(dev, GPIO_CTRL, 0x500000); /* GPIO 3 = 1 */
	509
1da177e4 LT	510	strlcpy(budget->i2c_adap.name, budget->card->name, sizeof(budget->i2c_adap.name));
	511
	512	saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120);
	513	strcpy(budget->i2c_adap.name, budget->card->name);
	514
	515	if (i2c_add_adapter(&budget->i2c_adap) < 0) {
87c3019d JB	516	ret = -ENOMEM;
87c3019d JB	517	goto err_dvb_unregister;
1da177e4 LT	518	}
1da177e4 LT	519
fdc53a6d	520	ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac);
1da177e4	521
87c3019d JB	522	budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, budget->buffer_size, &budget->pt);
87c3019d JB	523	if (NULL == budget->grabbing) {
1da177e4	524	ret = -ENOMEM;
87c3019d	525	goto err_del_i2c;
1da177e4 LT	526	}
	527
	528	saa7146_write(dev, PCI_BT_V1, 0x001c0000);
	529	/* upload all */
	530	saa7146_write(dev, GPIO_CTRL, 0x000000);
	531
	532	tasklet_init(&budget->vpe_tasklet, vpeirq, (unsigned long) budget);
	533
	534	/* frontend power on */
f49cc15b	535	if (bi->type != BUDGET_FS_ACTIVY)
1da177e4 LT	536	saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
1da177e4 LT	537
1fb4a17f	538	if ((ret = budget_register(budget)) == 0)
87c3019d JB	539	return 0; /* Everything OK */
	540
	541	/* An error occurred, cleanup resources */
	542	saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
1da177e4	543
87c3019d JB	544	err_del_i2c:
87c3019d JB	545	i2c_del_adapter(&budget->i2c_adap);
1da177e4	546
87c3019d	547	err_dvb_unregister:
fdc53a6d	548	dvb_unregister_adapter(&budget->dvb_adapter);
1da177e4 LT	549
	550	return ret;
	551	}
	552
32e4c3a5 OE	553	void ttpci_budget_init_hooks(struct budget *budget)
	554	{
	555	if (budget->dvb_frontend && !budget->read_fe_status) {
	556	budget->read_fe_status = budget->dvb_frontend->ops.read_status;
	557	budget->dvb_frontend->ops.read_status = budget_read_fe_status;
	558	}
	559	}
	560
1da177e4 LT	561	int ttpci_budget_deinit(struct budget *budget)
	562	{
	563	struct saa7146_dev *dev = budget->dev;
	564
	565	dprintk(2, "budget: %p\n", budget);
	566
	567	budget_unregister(budget);
	568
1da177e4 LT	569	tasklet_kill(&budget->vpe_tasklet);
1da177e4 LT	570
87c3019d	571	saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
1da177e4	572
87c3019d JB	573	i2c_del_adapter(&budget->i2c_adap);
	574
	575	dvb_unregister_adapter(&budget->dvb_adapter);
1da177e4 LT	576
	577	return 0;
	578	}
	579
	580	void ttpci_budget_irq10_handler(struct saa7146_dev dev, u32 isr)
	581	{
	582	struct budget budget = (struct budget ) dev->ext_priv;
	583
	584	dprintk(8, "dev: %p, budget: %p\n", dev, budget);
	585
	586	if (*isr & MASK_10)
	587	tasklet_schedule(&budget->vpe_tasklet);
	588	}
	589
	590	void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port)
	591	{
	592	struct budget budget = (struct budget ) dev->ext_priv;
	593
	594	spin_lock(&budget->feedlock);
	595	budget->video_port = video_port;
	596	if (budget->feeding) {
1da177e4 LT	597	stop_ts_capture(budget);
1da177e4 LT	598	start_ts_capture(budget);
1da177e4 LT	599	}
	600	spin_unlock(&budget->feedlock);
	601	}
	602
	603	EXPORT_SYMBOL_GPL(ttpci_budget_debiread);
	604	EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite);
	605	EXPORT_SYMBOL_GPL(ttpci_budget_init);
32e4c3a5	606	EXPORT_SYMBOL_GPL(ttpci_budget_init_hooks);
1da177e4 LT	607	EXPORT_SYMBOL_GPL(ttpci_budget_deinit);
	608	EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler);
	609	EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port);
	610	EXPORT_SYMBOL_GPL(budget_debug);
	611
	612	MODULE_LICENSE("GPL");