[linux-2.6-block.git] / drivers / media / pci / ttpci / budget-core.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * 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
 *
 * 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(struct tasklet_struct *t)
{
	struct budget *budget = from_tasklet(budget, t, vpe_tasklet);
	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 = false; /* 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)
		goto err_release_dmx;

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

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

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

	return 0;

err_release_dmx:
	dvb_dmxdev_release(&budget->dmxdev);
	dvb_dmx_release(&budget->demux);
	return ret;
}

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 */

	strscpy(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);
	strscpy(budget->i2c_adap.name, budget->card->name,
		sizeof(budget->i2c_adap.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_setup(&budget->vpe_tasklet, vpeirq);

	/* 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
a0c7056f	1	// SPDX-License-Identifier: GPL-2.0-or-later
1da177e4 LT	2	/*
	3	* budget-core.c: driver for the SAA7146 based Budget DVB cards
	4	*
	5	* Compiled from various sources by Michael Hunold <michael@mihu.de>
	6	*
	7	* Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de>
	8	*
	9	* Copyright (C) 1999-2002 Ralph Metzler
	10	* & Marcus Metzler for convergence integrated media GmbH
	11	*
	12	* 26feb2004 Support for FS Activy Card (Grundig tuner) by
	13	* Michael Dreher <michael@5dot1.de>,
	14	* Oliver Endriss <o.endriss@gmx.de>,
	15	* Andreas 'randy' Weinberger
	16	*
991ce92f	17	* the project's page is at https://linuxtv.org
1da177e4 LT	18	*/
1da177e4 LT	19
1da177e4 LT	20
	21	#include "budget.h"
	22	#include "ttpci-eeprom.h"
	23
afa47abf IS	24	#define TS_WIDTH (2 * TS_SIZE)
afa47abf IS	25	#define TS_WIDTH_ACTIVY TS_SIZE
fd9c66e2	26	#define TS_WIDTH_DVBC TS_SIZE
afa47abf IS	27	#define TS_HEIGHT_MASK 0xf00
afa47abf IS	28	#define TS_HEIGHT_MASK_ACTIVY 0xc00
fd9c66e2	29	#define TS_HEIGHT_MASK_DVBC 0xe00
afa47abf IS	30	#define TS_MIN_BUFSIZE_K 188
	31	#define TS_MAX_BUFSIZE_K 1410
	32	#define TS_MAX_BUFSIZE_K_ACTIVY 564
fd9c66e2	33	#define TS_MAX_BUFSIZE_K_DVBC 1316
afa47abf IS	34	#define BUFFER_WARNING_WAIT (30*HZ)
afa47abf IS	35
1da177e4	36	int budget_debug;
afa47abf	37	static int dma_buffer_size = TS_MIN_BUFSIZE_K;
1da177e4	38	module_param_named(debug, budget_debug, int, 0644);
afa47abf	39	module_param_named(bufsize, dma_buffer_size, int, 0444);
1da177e4	40	MODULE_PARM_DESC(debug, "Turn on/off budget debugging (default:off).");
afa47abf	41	MODULE_PARM_DESC(bufsize, "DMA buffer size in KB, default: 188, min: 188, max: 1410 (Activy: 564)");
1da177e4 LT	42
	43	/****************************************************************************
	44	* TT budget / WinTV Nova
	45	****************************************************************************/
	46
	47	static int stop_ts_capture(struct budget *budget)
	48	{
	49	dprintk(2, "budget: %p\n", budget);
	50
1da177e4 LT	51	saa7146_write(budget->dev, MC1, MASK_20); // DMA3 off
	52	SAA7146_IER_DISABLE(budget->dev, MASK_10);
	53	return 0;
	54	}
	55
	56	static int start_ts_capture(struct budget *budget)
	57	{
	58	struct saa7146_dev *dev = budget->dev;
	59
	60	dprintk(2, "budget: %p\n", budget);
	61
32e4c3a5 OE	62	if (!budget->feeding \|\| !budget->fe_synced)
32e4c3a5 OE	63	return 0;
1da177e4 LT	64
	65	saa7146_write(dev, MC1, MASK_20); // DMA3 off
	66
afa47abf	67	memset(budget->grabbing, 0x00, budget->buffer_size);
1da177e4 LT	68
	69	saa7146_write(dev, PCI_BT_V1, 0x001c0000 \| (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));
	70
1da177e4 LT	71	budget->ttbp = 0;
	72
	73	/*
	74	* Signal path on the Activy:
	75	*
	76	* tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory
	77	*
	78	* Since the tuner feeds 204 bytes packets into the SAA7146,
	79	* DMA3 is configured to strip the trailing 16 FEC bytes:
	80	* Pitch: 188, NumBytes3: 188, NumLines3: 1024
	81	*/
	82
9101e622	83	switch(budget->card->type) {
1da177e4 LT	84	case BUDGET_FS_ACTIVY:
	85	saa7146_write(dev, DD1_INIT, 0x04000000);
	86	saa7146_write(dev, MC2, (MASK_09 \| MASK_25));
	87	saa7146_write(dev, BRS_CTRL, 0x00000000);
	88	break;
	89	case BUDGET_PATCH:
	90	saa7146_write(dev, DD1_INIT, 0x00000200);
	91	saa7146_write(dev, MC2, (MASK_10 \| MASK_26));
	92	saa7146_write(dev, BRS_CTRL, 0x60000000);
	93	break;
aa323ac8 HB	94	case BUDGET_CIN1200C_MK3:
aa323ac8 HB	95	case BUDGET_KNC1C_MK3:
93165b77	96	case BUDGET_KNC1C_TDA10024:
aa323ac8 HB	97	case BUDGET_KNC1CP_MK3:
	98	if (budget->video_port == BUDGET_VIDEO_PORTA) {
	99	saa7146_write(dev, DD1_INIT, 0x06000200);
	100	saa7146_write(dev, MC2, (MASK_09 \| MASK_25 \| MASK_10 \| MASK_26));
	101	saa7146_write(dev, BRS_CTRL, 0x00000000);
	102	} else {
	103	saa7146_write(dev, DD1_INIT, 0x00000600);
	104	saa7146_write(dev, MC2, (MASK_09 \| MASK_25 \| MASK_10 \| MASK_26));
	105	saa7146_write(dev, BRS_CTRL, 0x60000000);
	106	}
	107	break;
1da177e4 LT	108	default:
	109	if (budget->video_port == BUDGET_VIDEO_PORTA) {
	110	saa7146_write(dev, DD1_INIT, 0x06000200);
	111	saa7146_write(dev, MC2, (MASK_09 \| MASK_25 \| MASK_10 \| MASK_26));
	112	saa7146_write(dev, BRS_CTRL, 0x00000000);
	113	} else {
	114	saa7146_write(dev, DD1_INIT, 0x02000600);
	115	saa7146_write(dev, MC2, (MASK_09 \| MASK_25 \| MASK_10 \| MASK_26));
	116	saa7146_write(dev, BRS_CTRL, 0x60000000);
	117	}
	118	}
	119
	120	saa7146_write(dev, MC2, (MASK_08 \| MASK_24));
	121	mdelay(10);
	122
	123	saa7146_write(dev, BASE_ODD3, 0);
fd9c66e2 HB	124	if (budget->buffer_size > budget->buffer_height * budget->buffer_width) {
	125	// using odd/even buffers
	126	saa7146_write(dev, BASE_EVEN3, budget->buffer_height * budget->buffer_width);
	127	} else {
	128	// using a single buffer
	129	saa7146_write(dev, BASE_EVEN3, 0);
	130	}
afa47abf	131	saa7146_write(dev, PROT_ADDR3, budget->buffer_size);
1da177e4 LT	132	saa7146_write(dev, BASE_PAGE3, budget->pt.dma \| ME1 \| 0x90);
1da177e4 LT	133
afa47abf IS	134	saa7146_write(dev, PITCH3, budget->buffer_width);
	135	saa7146_write(dev, NUM_LINE_BYTE3,
	136	(budget->buffer_height << 16) \| budget->buffer_width);
1da177e4 LT	137
	138	saa7146_write(dev, MC2, (MASK_04 \| MASK_20));
	139
	140	SAA7146_ISR_CLEAR(budget->dev, MASK_10); /* VPE */
	141	SAA7146_IER_ENABLE(budget->dev, MASK_10); /* VPE */
	142	saa7146_write(dev, MC1, (MASK_04 \| MASK_20)); /* DMA3 on */
	143
32e4c3a5 OE	144	return 0;
	145	}
	146
0df289a2 MCC	147	static int budget_read_fe_status(struct dvb_frontend *fe,
0df289a2 MCC	148	enum fe_status *status)
32e4c3a5 OE	149	{
	150	struct budget budget = (struct budget ) fe->dvb->priv;
	151	int synced;
	152	int ret;
	153
	154	if (budget->read_fe_status)
	155	ret = budget->read_fe_status(fe, status);
	156	else
	157	ret = -EINVAL;
	158
	159	if (!ret) {
	160	synced = (*status & FE_HAS_LOCK);
	161	if (synced != budget->fe_synced) {
	162	budget->fe_synced = synced;
	163	spin_lock(&budget->feedlock);
	164	if (synced)
	165	start_ts_capture(budget);
	166	else
	167	stop_ts_capture(budget);
	168	spin_unlock(&budget->feedlock);
	169	}
	170	}
	171	return ret;
1da177e4 LT	172	}
1da177e4 LT	173
32e36ef6	174	static void vpeirq(struct tasklet_struct *t)
1da177e4	175	{
32e36ef6	176	struct budget *budget = from_tasklet(budget, t, vpe_tasklet);
1da177e4 LT	177	u8 mem = (u8 ) (budget->grabbing);
	178	u32 olddma = budget->ttbp;
	179	u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
afa47abf	180	u32 count;
1da177e4	181
87c3019d JB	182	/* Ensure streamed PCI data is synced to CPU */
	183	pci_dma_sync_sg_for_cpu(budget->dev->pci, budget->pt.slist, budget->pt.nents, PCI_DMA_FROMDEVICE);
	184
1da177e4 LT	185	/* nearest lower position divisible by 188 */
	186	newdma -= newdma % 188;
	187
afa47abf	188	if (newdma >= budget->buffer_size)
1da177e4 LT	189	return;
	190
	191	budget->ttbp = newdma;
	192
	193	if (budget->feeding == 0 \|\| newdma == olddma)
	194	return;
	195
	196	if (newdma > olddma) { /* no wraparound, dump olddma..newdma */
afa47abf IS	197	count = newdma - olddma;
afa47abf IS	198	dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
1da177e4	199	} else { /* wraparound, dump olddma..buflen and 0..newdma */
afa47abf IS	200	count = budget->buffer_size - olddma;
	201	dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
	202	count += newdma;
1da177e4 LT	203	dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188);
1da177e4 LT	204	}
afa47abf IS	205
	206	if (count > budget->buffer_warning_threshold)
	207	budget->buffer_warnings++;
	208
	209	if (budget->buffer_warnings && time_after(jiffies, budget->buffer_warning_time)) {
	210	printk("%s %s: used %d times >80%% of buffer (%u bytes now)\n",
3ca7fc84	211	budget->dev->name, __func__, budget->buffer_warnings, count);
afa47abf IS	212	budget->buffer_warning_time = jiffies + BUFFER_WARNING_WAIT;
	213	budget->buffer_warnings = 0;
	214	}
1da177e4 LT	215	}
	216
	217
65adb86d HV	218	static int ttpci_budget_debiread_nolock(struct budget *budget, u32 config,
65adb86d HV	219	int addr, int count, int nobusyloop)
1da177e4 LT	220	{
1da177e4 LT	221	struct saa7146_dev *saa = budget->dev;
65adb86d	222	int result;
1da177e4	223
65adb86d HV	224	result = saa7146_wait_for_debi_done(saa, nobusyloop);
65adb86d HV	225	if (result < 0)
1da177e4	226	return result;
1da177e4 LT	227
	228	saa7146_write(saa, DEBI_COMMAND, (count << 17) \| 0x10000 \| (addr & 0xffff));
	229	saa7146_write(saa, DEBI_CONFIG, config);
	230	saa7146_write(saa, DEBI_PAGE, 0);
	231	saa7146_write(saa, MC2, (2 << 16) \| 2);
	232
65adb86d HV	233	result = saa7146_wait_for_debi_done(saa, nobusyloop);
65adb86d HV	234	if (result < 0)
1da177e4	235	return result;
1da177e4 LT	236
	237	result = saa7146_read(saa, DEBI_AD);
	238	result &= (0xffffffffUL >> ((4 - count) * 8));
1da177e4 LT	239	return result;
	240	}
	241
65adb86d HV	242	int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count,
65adb86d HV	243	int uselocks, int nobusyloop)
1da177e4	244	{
1da177e4 LT	245	if (count > 4 \|\| count <= 0)
	246	return 0;
	247
65adb86d HV	248	if (uselocks) {
	249	unsigned long flags;
	250	int result;
1da177e4	251
65adb86d HV	252	spin_lock_irqsave(&budget->debilock, flags);
	253	result = ttpci_budget_debiread_nolock(budget, config, addr,
	254	count, nobusyloop);
	255	spin_unlock_irqrestore(&budget->debilock, flags);
1da177e4 LT	256	return result;
1da177e4 LT	257	}
65adb86d HV	258	return ttpci_budget_debiread_nolock(budget, config, addr,
	259	count, nobusyloop);
	260	}
	261
	262	static int ttpci_budget_debiwrite_nolock(struct budget *budget, u32 config,
	263	int addr, int count, u32 value, int nobusyloop)
	264	{
	265	struct saa7146_dev *saa = budget->dev;
	266	int result;
	267
	268	result = saa7146_wait_for_debi_done(saa, nobusyloop);
	269	if (result < 0)
	270	return result;
1da177e4 LT	271
	272	saa7146_write(saa, DEBI_COMMAND, (count << 17) \| 0x00000 \| (addr & 0xffff));
	273	saa7146_write(saa, DEBI_CONFIG, config);
	274	saa7146_write(saa, DEBI_PAGE, 0);
	275	saa7146_write(saa, DEBI_AD, value);
	276	saa7146_write(saa, MC2, (2 << 16) \| 2);
	277
65adb86d HV	278	result = saa7146_wait_for_debi_done(saa, nobusyloop);
	279	return result < 0 ? result : 0;
	280	}
1da177e4	281
65adb86d HV	282	int ttpci_budget_debiwrite(struct budget *budget, u32 config, int addr,
	283	int count, u32 value, int uselocks, int nobusyloop)
	284	{
	285	if (count > 4 \|\| count <= 0)
	286	return 0;
	287
	288	if (uselocks) {
	289	unsigned long flags;
	290	int result;
	291
	292	spin_lock_irqsave(&budget->debilock, flags);
	293	result = ttpci_budget_debiwrite_nolock(budget, config, addr,
	294	count, value, nobusyloop);
1da177e4	295	spin_unlock_irqrestore(&budget->debilock, flags);
65adb86d HV	296	return result;
	297	}
	298	return ttpci_budget_debiwrite_nolock(budget, config, addr,
	299	count, value, nobusyloop);
1da177e4 LT	300	}
	301
	302
	303	/****************************************************************************
	304	* DVB API SECTION
	305	****************************************************************************/
	306
	307	static int budget_start_feed(struct dvb_demux_feed *feed)
	308	{
	309	struct dvb_demux *demux = feed->demux;
	310	struct budget budget = (struct budget ) demux->priv;
32e4c3a5	311	int status = 0;
1da177e4 LT	312
	313	dprintk(2, "budget: %p\n", budget);
	314
	315	if (!demux->dmx.frontend)
	316	return -EINVAL;
	317
	318	spin_lock(&budget->feedlock);
2c53275c	319	feed->pusi_seen = false; /* have a clean section start */
32e4c3a5 OE	320	if (budget->feeding++ == 0)
32e4c3a5 OE	321	status = start_ts_capture(budget);
1da177e4 LT	322	spin_unlock(&budget->feedlock);
	323	return status;
	324	}
	325
	326	static int budget_stop_feed(struct dvb_demux_feed *feed)
	327	{
	328	struct dvb_demux *demux = feed->demux;
	329	struct budget budget = (struct budget ) demux->priv;
32e4c3a5	330	int status = 0;
1da177e4 LT	331
	332	dprintk(2, "budget: %p\n", budget);
	333
	334	spin_lock(&budget->feedlock);
32e4c3a5 OE	335	if (--budget->feeding == 0)
32e4c3a5 OE	336	status = stop_ts_capture(budget);
1da177e4 LT	337	spin_unlock(&budget->feedlock);
	338	return status;
	339	}
	340
	341	static int budget_register(struct budget *budget)
	342	{
	343	struct dvb_demux *dvbdemux = &budget->demux;
	344	int ret;
	345
	346	dprintk(2, "budget: %p\n", budget);
	347
	348	dvbdemux->priv = (void *) budget;
	349
	350	dvbdemux->filternum = 256;
	351	dvbdemux->feednum = 256;
	352	dvbdemux->start_feed = budget_start_feed;
	353	dvbdemux->stop_feed = budget_stop_feed;
	354	dvbdemux->write_to_decoder = NULL;
	355
	356	dvbdemux->dmx.capabilities = (DMX_TS_FILTERING \| DMX_SECTION_FILTERING \|
	357	DMX_MEMORY_BASED_FILTERING);
	358
	359	dvb_dmx_init(&budget->demux);
	360
	361	budget->dmxdev.filternum = 256;
	362	budget->dmxdev.demux = &dvbdemux->dmx;
	363	budget->dmxdev.capabilities = 0;
	364
fdc53a6d	365	dvb_dmxdev_init(&budget->dmxdev, &budget->dvb_adapter);
1da177e4 LT	366
	367	budget->hw_frontend.source = DMX_FRONTEND_0;
	368
	369	ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->hw_frontend);
	370
	371	if (ret < 0)
fc045645	372	goto err_release_dmx;
1da177e4 LT	373
	374	budget->mem_frontend.source = DMX_MEMORY_FE;
	375	ret = dvbdemux->dmx.add_frontend(&dvbdemux->dmx, &budget->mem_frontend);
	376	if (ret < 0)
fc045645	377	goto err_release_dmx;
1da177e4 LT	378
	379	ret = dvbdemux->dmx.connect_frontend(&dvbdemux->dmx, &budget->hw_frontend);
	380	if (ret < 0)
fc045645	381	goto err_release_dmx;
1da177e4	382
fdc53a6d	383	dvb_net_init(&budget->dvb_adapter, &budget->dvb_net, &dvbdemux->dmx);
1da177e4 LT	384
1da177e4 LT	385	return 0;
fc045645 CY	386
	387	err_release_dmx:
	388	dvb_dmxdev_release(&budget->dmxdev);
	389	dvb_dmx_release(&budget->demux);
	390	return ret;
1da177e4 LT	391	}
	392
	393	static void budget_unregister(struct budget *budget)
	394	{
	395	struct dvb_demux *dvbdemux = &budget->demux;
	396
	397	dprintk(2, "budget: %p\n", budget);
	398
	399	dvb_net_release(&budget->dvb_net);
	400
	401	dvbdemux->dmx.close(&dvbdemux->dmx);
	402	dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->hw_frontend);
	403	dvbdemux->dmx.remove_frontend(&dvbdemux->dmx, &budget->mem_frontend);
	404
	405	dvb_dmxdev_release(&budget->dmxdev);
	406	dvb_dmx_release(&budget->demux);
	407	}
	408
	409	int ttpci_budget_init(struct budget budget, struct saa7146_dev dev,
	410	struct saa7146_pci_extension_data *info,
26dc4d04	411	struct module owner, short adapter_nums)
1da177e4	412	{
1da177e4 LT	413	int ret = 0;
1da177e4 LT	414	struct budget_info *bi = info->ext_priv;
afa47abf IS	415	int max_bufsize;
afa47abf IS	416	int height_mask;
1da177e4 LT	417
	418	memset(budget, 0, sizeof(struct budget));
	419
	420	dprintk(2, "dev: %p, budget: %p\n", dev, budget);
	421
	422	budget->card = bi;
	423	budget->dev = (struct saa7146_dev *) dev;
	424
fd9c66e2 HB	425	switch(budget->card->type) {
fd9c66e2 HB	426	case BUDGET_FS_ACTIVY:
afa47abf IS	427	budget->buffer_width = TS_WIDTH_ACTIVY;
	428	max_bufsize = TS_MAX_BUFSIZE_K_ACTIVY;
	429	height_mask = TS_HEIGHT_MASK_ACTIVY;
fd9c66e2 HB	430	break;
	431
	432	case BUDGET_KNC1C:
	433	case BUDGET_KNC1CP:
	434	case BUDGET_CIN1200C:
aa323ac8	435	case BUDGET_KNC1C_MK3:
93165b77	436	case BUDGET_KNC1C_TDA10024:
aa323ac8 HB	437	case BUDGET_KNC1CP_MK3:
aa323ac8 HB	438	case BUDGET_CIN1200C_MK3:
fd9c66e2 HB	439	budget->buffer_width = TS_WIDTH_DVBC;
	440	max_bufsize = TS_MAX_BUFSIZE_K_DVBC;
	441	height_mask = TS_HEIGHT_MASK_DVBC;
	442	break;
	443
	444	default:
afa47abf IS	445	budget->buffer_width = TS_WIDTH;
	446	max_bufsize = TS_MAX_BUFSIZE_K;
	447	height_mask = TS_HEIGHT_MASK;
	448	}
	449
	450	if (dma_buffer_size < TS_MIN_BUFSIZE_K)
	451	dma_buffer_size = TS_MIN_BUFSIZE_K;
	452	else if (dma_buffer_size > max_bufsize)
	453	dma_buffer_size = max_bufsize;
	454
	455	budget->buffer_height = dma_buffer_size * 1024 / budget->buffer_width;
fd9c66e2 HB	456	if (budget->buffer_height > 0xfff) {
	457	budget->buffer_height /= 2;
	458	budget->buffer_height &= height_mask;
	459	budget->buffer_size = 2 * budget->buffer_height * budget->buffer_width;
	460	} else {
	461	budget->buffer_height &= height_mask;
	462	budget->buffer_size = budget->buffer_height * budget->buffer_width;
	463	}
afa47abf IS	464	budget->buffer_warning_threshold = budget->buffer_size * 80/100;
	465	budget->buffer_warnings = 0;
	466	budget->buffer_warning_time = jiffies;
	467
fd9c66e2 HB	468	dprintk(2, "%s: buffer type = %s, width = %d, height = %d\n",
	469	budget->dev->name,
	470	budget->buffer_size > budget->buffer_width * budget->buffer_height ? "odd/even" : "single",
	471	budget->buffer_width, budget->buffer_height);
afa47abf IS	472	printk("%s: dma buffer size %u\n", budget->dev->name, budget->buffer_size);
afa47abf IS	473
78e92006	474	ret = dvb_register_adapter(&budget->dvb_adapter, budget->card->name,
26dc4d04	475	owner, &budget->dev->pci->dev, adapter_nums);
78e92006	476	if (ret < 0)
dcdda65f	477	return ret;
1da177e4 LT	478
	479	/* set dd1 stream a & b */
	480	saa7146_write(dev, DD1_STREAM_B, 0x00000000);
	481	saa7146_write(dev, MC2, (MASK_09 \| MASK_25));
	482	saa7146_write(dev, MC2, (MASK_10 \| MASK_26));
	483	saa7146_write(dev, DD1_INIT, 0x02000000);
	484	saa7146_write(dev, MC2, (MASK_09 \| MASK_25 \| MASK_10 \| MASK_26));
	485
	486	if (bi->type != BUDGET_FS_ACTIVY)
	487	budget->video_port = BUDGET_VIDEO_PORTB;
	488	else
	489	budget->video_port = BUDGET_VIDEO_PORTA;
	490	spin_lock_init(&budget->feedlock);
	491	spin_lock_init(&budget->debilock);
	492
	493	/* the Siemens DVB needs this if you want to have the i2c chips
	494	get recognized before the main driver is loaded */
	495	if (bi->type != BUDGET_FS_ACTIVY)
	496	saa7146_write(dev, GPIO_CTRL, 0x500000); /* GPIO 3 = 1 */
	497
c0decac1 MCC	498	strscpy(budget->i2c_adap.name, budget->card->name,
c0decac1 MCC	499	sizeof(budget->i2c_adap.name));
1da177e4 LT	500
1da177e4 LT	501	saa7146_i2c_adapter_prepare(dev, &budget->i2c_adap, SAA7146_I2C_BUS_BIT_RATE_120);
cc1e6315 MCC	502	strscpy(budget->i2c_adap.name, budget->card->name,
cc1e6315 MCC	503	sizeof(budget->i2c_adap.name));
1da177e4 LT	504
1da177e4 LT	505	if (i2c_add_adapter(&budget->i2c_adap) < 0) {
87c3019d JB	506	ret = -ENOMEM;
87c3019d JB	507	goto err_dvb_unregister;
1da177e4 LT	508	}
1da177e4 LT	509
fdc53a6d	510	ttpci_eeprom_parse_mac(&budget->i2c_adap, budget->dvb_adapter.proposed_mac);
1da177e4	511
87c3019d JB	512	budget->grabbing = saa7146_vmalloc_build_pgtable(dev->pci, budget->buffer_size, &budget->pt);
87c3019d JB	513	if (NULL == budget->grabbing) {
1da177e4	514	ret = -ENOMEM;
87c3019d	515	goto err_del_i2c;
1da177e4 LT	516	}
	517
	518	saa7146_write(dev, PCI_BT_V1, 0x001c0000);
	519	/* upload all */
	520	saa7146_write(dev, GPIO_CTRL, 0x000000);
	521
32e36ef6	522	tasklet_setup(&budget->vpe_tasklet, vpeirq);
1da177e4 LT	523
1da177e4 LT	524	/* frontend power on */
f49cc15b	525	if (bi->type != BUDGET_FS_ACTIVY)
1da177e4 LT	526	saa7146_setgpio(dev, 2, SAA7146_GPIO_OUTHI);
1da177e4 LT	527
1fb4a17f	528	if ((ret = budget_register(budget)) == 0)
87c3019d JB	529	return 0; /* Everything OK */
	530
	531	/* An error occurred, cleanup resources */
	532	saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
1da177e4	533
87c3019d JB	534	err_del_i2c:
87c3019d JB	535	i2c_del_adapter(&budget->i2c_adap);
1da177e4	536
87c3019d	537	err_dvb_unregister:
fdc53a6d	538	dvb_unregister_adapter(&budget->dvb_adapter);
1da177e4 LT	539
	540	return ret;
	541	}
	542
32e4c3a5 OE	543	void ttpci_budget_init_hooks(struct budget *budget)
	544	{
	545	if (budget->dvb_frontend && !budget->read_fe_status) {
	546	budget->read_fe_status = budget->dvb_frontend->ops.read_status;
	547	budget->dvb_frontend->ops.read_status = budget_read_fe_status;
	548	}
	549	}
	550
1da177e4 LT	551	int ttpci_budget_deinit(struct budget *budget)
	552	{
	553	struct saa7146_dev *dev = budget->dev;
	554
	555	dprintk(2, "budget: %p\n", budget);
	556
	557	budget_unregister(budget);
	558
1da177e4 LT	559	tasklet_kill(&budget->vpe_tasklet);
1da177e4 LT	560
87c3019d	561	saa7146_vfree_destroy_pgtable(dev->pci, budget->grabbing, &budget->pt);
1da177e4	562
87c3019d JB	563	i2c_del_adapter(&budget->i2c_adap);
	564
	565	dvb_unregister_adapter(&budget->dvb_adapter);
1da177e4 LT	566
	567	return 0;
	568	}
	569
	570	void ttpci_budget_irq10_handler(struct saa7146_dev dev, u32 isr)
	571	{
	572	struct budget budget = (struct budget ) dev->ext_priv;
	573
	574	dprintk(8, "dev: %p, budget: %p\n", dev, budget);
	575
	576	if (*isr & MASK_10)
	577	tasklet_schedule(&budget->vpe_tasklet);
	578	}
	579
	580	void ttpci_budget_set_video_port(struct saa7146_dev *dev, int video_port)
	581	{
	582	struct budget budget = (struct budget ) dev->ext_priv;
	583
	584	spin_lock(&budget->feedlock);
	585	budget->video_port = video_port;
	586	if (budget->feeding) {
1da177e4 LT	587	stop_ts_capture(budget);
1da177e4 LT	588	start_ts_capture(budget);
1da177e4 LT	589	}
	590	spin_unlock(&budget->feedlock);
	591	}
	592
	593	EXPORT_SYMBOL_GPL(ttpci_budget_debiread);
	594	EXPORT_SYMBOL_GPL(ttpci_budget_debiwrite);
	595	EXPORT_SYMBOL_GPL(ttpci_budget_init);
32e4c3a5	596	EXPORT_SYMBOL_GPL(ttpci_budget_init_hooks);
1da177e4 LT	597	EXPORT_SYMBOL_GPL(ttpci_budget_deinit);
	598	EXPORT_SYMBOL_GPL(ttpci_budget_irq10_handler);
	599	EXPORT_SYMBOL_GPL(ttpci_budget_set_video_port);
	600	EXPORT_SYMBOL_GPL(budget_debug);
	601
	602	MODULE_LICENSE("GPL");