/*
 * $Id: saa7134-dvb.c,v 1.7 2005/01/04 16:31:20 kraxel Exp $
 *
 * (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
 *
 *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <linux/init.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/suspend.h>

#include "saa7134-reg.h"
#include "saa7134.h"

#include "dvb-pll.h"
#include "mt352.h"
#include "mt352_priv.h" /* FIXME */

MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
MODULE_LICENSE("GPL");

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

static int mt352_pinnacle_init(struct dvb_frontend* fe)
{
	static u8 clock_config []  = { CLOCK_CTL,  0x3d, 0x39 };
	static u8 reset []         = { RESET,      0x80 };
	static u8 adc_ctl_1_cfg [] = { ADC_CTL_1,  0x40 };
	static u8 agc_cfg []       = { AGC_TARGET, 0x20, 0x20 };
	static u8 capt_range_cfg[] = { CAPT_RANGE, 0x31 };
#if 0
	// general purpose port pins
	static u8 gpp_ctl_cfg []   = { GPP_CTL,    0x33 };
#endif
	struct saa7134_dev *dev= fe->dvb->priv;

	printk("%s: %s called\n",dev->name,__FUNCTION__);

	mt352_write(fe, clock_config,   sizeof(clock_config));
	udelay(200);
	mt352_write(fe, reset,          sizeof(reset));
	mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
	mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
	mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));

#if 0
	mt352_write(fe, gpp_ctl_cfg,    sizeof(gpp_ctl_cfg));
#endif
	return 0;
}

static int mt352_pinnacle_pll_set(struct dvb_frontend* fe,
				  struct dvb_frontend_parameters* params,
				  u8* pllbuf)
{
	static u8 buf[][3] = {
		/* set bandwidth (ADC frequency is 20.333 MHz) */
		[ BANDWIDTH_6_MHZ ] = { TRL_NOMINAL_RATE_1, 0x56, 0x55 },
		[ BANDWIDTH_7_MHZ ] = { TRL_NOMINAL_RATE_1, 0x64, 0xB8 },
		[ BANDWIDTH_8_MHZ ] = { TRL_NOMINAL_RATE_1, 0x73, 0x1C },
	};
	struct saa7134_dev *dev= fe->dvb->priv;
	struct v4l2_frequency f;
	int bw = params->u.ofdm.bandwidth;

	printk("%s: %s called (freq=%d,bw=%d)\n",dev->name,__FUNCTION__,
	       params->frequency,bw);

	/* set frequency */
	f.tuner     = 0;
	f.type      = V4L2_TUNER_ANALOG_TV; /* FIXME */
	f.frequency = params->frequency / 1000 * 16 / 1000;
	saa7134_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,&f);
	memset(pllbuf,0,5);

	if (bw < ARRAY_SIZE(buf) && NULL != buf[bw]) {
#if 1
		/* dirty hack time -- fixup mt352 buffer which has
		 * adc freq 20.48 MHz values hardcoded */
		pllbuf[-4] = buf[bw][1];
		pllbuf[-3] = buf[bw][2];
		pllbuf[-2] = 0x31; /* if 36.1667 + adc 20.333 */
		pllbuf[-1] = 0xD9;
#else
		mt352_write(fe, buf[bw], 3);
#endif
	}
		
	return 0;
}

static struct mt352_config pinnacle_300i = {
	.demod_address = 0x3c >> 1,
	.demod_init    = mt352_pinnacle_init,
	.pll_set       = mt352_pinnacle_pll_set,
};

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

static int dvb_init(struct saa7134_dev *dev)
{
	/* init struct videobuf_dvb */
	dev->dvb.name = dev->name;
	videobuf_queue_init(&dev->dvb.dvbq, &saa7134_ts_qops,
			    dev->pci, &dev->slock,
			    V4L2_BUF_TYPE_VIDEO_CAPTURE,
			    V4L2_FIELD_TOP,
			    sizeof(struct saa7134_buf),
			    dev);

	switch (dev->board) {
	case SAA7134_BOARD_PINNACLE_300I_DVBT_PAL:
		printk("%s: pinnacle 300i dvb setup\n",dev->name);
		dev->dvb.frontend = mt352_attach(&pinnacle_300i,
						 &dev->i2c_adap);
		break;
	default:
		printk("%s: Huh? unknown DVB card?\n",dev->name);
		break;
	}

	if (NULL == dev->dvb.frontend) {
		printk("%s: frontend initialization failed\n",dev->name);
		return -1;
	}

	/* register everything else */
	return videobuf_dvb_register(&dev->dvb, THIS_MODULE, dev);
}

static int dvb_fini(struct saa7134_dev *dev)
{
	printk("%s: %s\n",dev->name,__FUNCTION__);
	videobuf_dvb_unregister(&dev->dvb);
	return 0;
}

static struct saa7134_mpeg_ops dvb_ops = {
	.type          = SAA7134_MPEG_DVB,
	.init          = dvb_init,
	.fini          = dvb_fini,
};

static int __init dvb_register(void)
{
	return saa7134_ts_register(&dvb_ops);
}

static void __exit dvb_unregister(void)
{
	saa7134_ts_unregister(&dvb_ops);
}

module_init(dvb_register);
module_exit(dvb_unregister);

/* ------------------------------------------------------------------ */
/*
 * Local variables:
 * c-basic-offset: 8
 * compile-command: "make DVB=1"
 * End:
 */