path: root/drivers/media/pci/ttpci/budget-patch.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * budget-patch.c: driver for Budget Patch,
 * hardware modification of DVB-S cards enabling full TS
 *
 * Written by Emard <emard@softhome.net>
 *
 * Original idea by Roberto Deza <rdeza@unav.es>
 *
 * Special thanks to Holger Waechtler, Michael Hunold, Marian Durkovic
 * and Metzlerbros
 *
 * the project's page is at https://linuxtv.org
 */

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

#include "bsru6.h"

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

#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 const 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 <rjkm@metzlerbros.de> */

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);
			mdelay(12);
			udelay(500);
			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,
			   enum fe_sec_tone_mode 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,
				    enum fe_sec_mini_cmd 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]=