budget-patch.c

V4l driver for DVB HD

/*
 * budget-patch.c: driver for Budget Patch,
 * hardware modification of DVB-S cards enabling full TS
 *
 * Written by Emard <[e-mail]>
 *
 * Original idea by Roberto Deza <[e-mail]>
 *
 * Special thanks to Holger Waechtler, Michael Hunold, Marian Durkovic
 * and Metzlerbros
 *
 * 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 http://www.linuxtv.org/dvb/
 */

#include "av7110.h"
#include "av7110_hw.h"
#include "budget.h"
#include "stv0299.h"
#include "ves1x93.h"
#include "tda8083.h"

#include "bsru6.h"

#define budget_patch budget

static struct saa7146_extension budget_extension;

MAKE_BUDGET_INFO(ttbp, "TT-Budget/Patch DVB-S 1.x PCI", BUDGET_PATCH);
//MAKE_BUDGET_INFO(satel,"TT-Budget/Patch SATELCO PCI", BUDGET_TT_HW_DISEQC);

static struct pci_device_id pci_tbl[] = {
	MAKE_EXTENSION_PCI(ttbp,0x13c2, 0x0000),
//        MAKE_EXTENSION_PCI(satel, 0x13c2, 0x1013),
	{
		.vendor    = 0,
	}
};

/* those lines are for budget-patch to be tried
** on a true budget card and observe the
** behaviour of VSYNC generated by rps1.
** this code was shamelessly copy/pasted from budget.c
*/
static void gpio_Set22K (struct budget *budget, int state)
{
	struct saa7146_dev *dev=budget->dev;
	dprintk(2, "budget: %p\n", budget);
	saa7146_setgpio(dev, 3, (state ? SAA7146_GPIO_OUTHI : SAA7146_GPIO_OUTLO));
}

/* Diseqc functions only for TT Budget card */
/* taken from the Skyvision DVB driver by
   Ralph Metzler <[e-mail]> */

static void DiseqcSendBit (struct budget *budget, int data)
{
	struct saa7146_dev *dev=budget->dev;
	dprintk(2, "budget: %p\n", budget);

	saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
	udelay(data ? 500 : 1000);
	saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
	udelay(data ? 1000 : 500);
}

static void DiseqcSendByte (struct budget *budget, int data)
{
	int i, par=1, d;

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

	for (i=7; i>=0; i--) {
		d = (data>>i)&1;
		par ^= d;
		DiseqcSendBit(budget, d);
	}

	DiseqcSendBit(budget, par);
}

static int SendDiSEqCMsg (struct budget *budget, int len, u8 *msg, unsigned long burst)
{
	struct saa7146_dev *dev=budget->dev;
	int i;

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

	saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
	mdelay(16);

	for (i=0; i<len; i++)
		DiseqcSendByte(budget, msg[i]);

	mdelay(16);

	if (burst!=-1) {
		if (burst)
			DiseqcSendByte(budget, 0xff);
		else {
			saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTHI);
			udelay(12500);
			saa7146_setgpio(dev, 3, SAA7146_GPIO_OUTLO);
		}
		msleep(20);
	}

	return 0;
}

/* shamelessly copy/pasted from budget.c
*/
static int budget_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
{
	struct budget* budget = (struct budget*) fe->dvb->priv;

	switch (tone) {
	case SEC_TONE_ON:
		gpio_Set22K (budget, 1);
		break;

	case SEC_TONE_OFF:
		gpio_Set22K (budget, 0);
		break;

	default:
		return -EINVAL;
	}

	return 0;
}

static int budget_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
{
	struct budget* budget = (struct budget*) fe->dvb->priv;

	SendDiSEqCMsg (budget, cmd->msg_len, cmd->msg, 0);

	return 0;
}

static int budget_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
{
	struct budget* budget = (struct budget*) fe->dvb->priv;

	SendDiSEqCMsg (budget, 0, NULL, minicmd);

	return 0;
}

static int budget_av7110_send_fw_cmd(struct budget_patch *budget, u16* buf, int length)
{
	int i;

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

	for (i = 2; i < length; i++)
	{
		  ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2*i, 2, (u32) buf[i], 0,0);
		  msleep(5);
	}
	if (length)
		  ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, (u32) buf[1], 0,0);
	else
		  ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND + 2, 2, 0, 0,0);
	msleep(5);
	ttpci_budget_debiwrite(budget, DEBINOSWAP, COMMAND, 2, (u32) buf[0], 0,0);
	msleep(5);
	return 0;
}

static void av7110_set22k(struct budget_patch *budget, int state)
{
	u16 buf[2] = {( COMTYPE_AUDIODAC << 8) | (state ? ON22K : OFF22K), 0};

	dprintk(2, "budget: %p\n", budget);
	budget_av7110_send_fw_cmd(budget, buf, 2);
}

static int av7110_send_diseqc_msg(struct budget_patch *budget, int len, u8 *msg, int burst)
{
	int i;
	u16 buf[18] = { ((COMTYPE_AUDIODAC << 8) | SendDiSEqC),
		16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };

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

	if (len>10)
		len=10;

	buf[1] = len+2;
	buf[2] = len;

	if (burst != -1)
		buf[3]=burst ? 0x01 : 0x00;
	else
		buf[3]=0xffff;

	for (i=0; i<len; i++)
		buf[i+4]=msg[i];

	budget_av7110_send_fw_cmd(budget, buf, 18);
	return 0;
}

static int budget_patch_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
{
	struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;

	switch (tone) {
	case SEC_TONE_ON:
		av7110_set22k (budget, 1);
		break;

	case SEC_TONE_OFF:
		av7110_set22k (budget, 0);
		break;

	default:
		return -EINVAL;
	}

	return 0;
}

static int budget_patch_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
{
	struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;

	av7110_send_diseqc_msg (budget, cmd->msg_len, cmd->msg, 0);

	return 0;
}

static int budget_patch_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t minicmd)
{
	struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;

	av7110_send_diseqc_msg (budget, 0, NULL, minicmd);

	return 0;
}

static int alps_bsrv2_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
{
	struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
	u8 pwr = 0;
	u8 buf[4];
	struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = buf, .len = sizeof(buf) };
	u32 div = (params->frequency + 479500) / 125;

	if (params->frequency > 2000000) pwr = 3;
	else if (params->frequency > 1800000) pwr = 2;
	else if (params->frequency > 1600000) pwr = 1;
	else if (params->frequency > 1200000) pwr = 0;
	else if (params->frequency >= 1100000) pwr = 1;
	else pwr = 2;

	buf[0] = (div >> 8) & 0x7f;
	buf[1] = div & 0xff;
	buf[2] = ((div & 0x18000) >> 10) | 0x95;
	buf[3] = (pwr << 6) | 0x30;

	// NOTE: since we're using a prescaler of 2, we set the
	// divisor frequency to 62.5kHz and divide by 125 above

	if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1) return -EIO;
	return 0;
}

static struct ves1x93_config alps_bsrv2_config = {
	.demod_address = 0x08,
	.xin = 90100000UL,
	.invert_pwm = 0,
	.pll_set = alps_bsrv2_pll_set,
};

static int grundig_29504_451_pll_set(struct dvb_frontend* fe, struct dvb_frontend_parameters* params)
{
	struct budget_patch* budget = (struct budget_patch*) fe->dvb->priv;
	u32 div;
	u8 data[4];
	struct i2c_msg msg = { .addr = 0x61, .flags = 0, .buf = data, .len = sizeof(data) };

	div = params->frequency / 125;
	data[0] = (div >> 8) & 0x7f;
	data[1] = div & 0xff;
	data[2] = 0x8e;
	data[3] = 0x00;

	if (i2c_transfer (&budget->i2c_adap, &msg, 1) != 1) return -EIO;
	return 0;
}

static struct tda8083_config grundig_29504_451_config = {
	.demod_address = 0x68,
	.pll_set = grundig_29504_451_pll_set,
};

static void frontend_init(struct budget_patch* budget)
{
	switch(budget->dev->pci->subsystem_device) {
	case 0x0000: // Hauppauge/TT WinTV DVB-S rev1.X
	case 0x1013: // SATELCO Multimedia PCI

		// try the ALPS BSRV2 first of all
		budget->dvb_frontend = ves1x93_attach(&alps_bsrv2_config, &budget->i2c_adap);
		if (budget->dvb_frontend) {
			budget->dvb_frontend->ops->diseqc_send_master_cmd = budget_patch_diseqc_send_master_cmd;
			budget->dvb_frontend->ops->diseqc_send_burst = budget_patch_diseqc_send_burst;
			budget->dvb_frontend->ops->set_tone = budget_patch_set_tone;
			break;