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Commit 265a6510 authored by Steven Toth's avatar Steven Toth Committed by Mauro Carvalho Chehab
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V4L/DVB (7621): Add support for Hauppauge HVR950Q/HVR850/FusioHDTV7-USB 



Including support for the AU0828 USB Bridge.
Including support for the AU8522 ATSC/QAM Demodulator.
Including support for the AU8522 ATSC/QAM Demodulator.

Signed-off-by: default avatarSteven Toth <stoth@hauppauge.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent c8234ea3

drivers/media/dvb/frontends/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -291,6 +291,14 @@ config DVB_S5H1409 
	  An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want

	  to support this frontend.



config DVB_AU8522

	tristate "Auvitek AU8522 based"

	depends on DVB_CORE && I2C

	default m if DVB_FE_CUSTOMISE

	help

	  An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want

	  to support this frontend.



comment "Tuners/PLL support"

	depends on DVB_CORE

drivers/media/dvb/frontends/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -53,3 +53,4 @@ obj-$(CONFIG_DVB_TUNER_MT2131) += mt2131.o 
obj-$(CONFIG_DVB_S5H1409) += s5h1409.o

obj-$(CONFIG_DVB_TUNER_XC5000) += xc5000.o

obj-$(CONFIG_DVB_TUNER_ITD1000) += itd1000.o

obj-$(CONFIG_DVB_AU8522) += au8522.o

drivers/media/dvb/frontends/au8522.c

0 → 100644
+448 −0
Original line number Diff line number Diff line 
/*

    Auvitek AU8522 QAM/8VSB demodulator driver



    Copyright (C) 2008 Steven Toth <stoth@hauppauge.com>



    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/kernel.h>

#include <linux/init.h>

#include <linux/module.h>

#include <linux/string.h>

#include <linux/slab.h>

#include <linux/delay.h>

#include "dvb_frontend.h"

#include "dvb-pll.h"

#include "au8522.h"



struct au8522_state {



	struct i2c_adapter* i2c;



	/* configuration settings */

	const struct au8522_config* config;



	struct dvb_frontend frontend;



	u32 current_frequency;

	fe_modulation_t current_modulation;



};



static int debug = 0;

#define dprintk	if (debug) printk



/* 16 bit registers, 8 bit values */

static int au8522_writereg(struct au8522_state* state, u16 reg, u8 data)

{

	int ret;

	u8 buf [] = { reg >> 8, reg & 0xff, data };



	struct i2c_msg msg = { .addr = state->config->demod_address,

			       .flags = 0, .buf = buf, .len = 3 };



	ret = i2c_transfer(state->i2c, &msg, 1);



	if (ret != 1)

		printk("%s: writereg error (reg == 0x%02x, val == 0x%04x, "

		       "ret == %i)\n", __FUNCTION__, reg, data, ret);



	return (ret != 1) ? -1 : 0;

}



static u8 au8522_readreg(struct au8522_state* state, u16 reg)

{

	int ret;

	u8 b0 [] = { reg >> 8, reg & 0xff };

	u8 b1 [] = { 0 };



	struct i2c_msg msg [] = {

		{ .addr = state->config->demod_address, .flags = 0,

		  .buf = b0, .len = 2 },

		{ .addr = state->config->demod_address, .flags = I2C_M_RD,

		  .buf = b1, .len = 1 } };



	ret = i2c_transfer(state->i2c, msg, 2);



	if (ret != 2)

		printk("%s: readreg error (ret == %i)\n", __FUNCTION__, ret);

	return b1[0];

}



static int au8522_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)

{

	struct au8522_state* state = fe->demodulator_priv;



	dprintk("%s(%d)\n", __FUNCTION__, enable);



	if (enable)

		return au8522_writereg(state, 0x106, 1);

	else

		return au8522_writereg(state, 0x106, 0);

}



static int au8522_enable_modulation(struct dvb_frontend* fe,

	fe_modulation_t m)

{

	struct au8522_state* state = fe->demodulator_priv;



	dprintk("%s(0x%08x)\n", __FUNCTION__, m);



	switch(m) {

	case VSB_8:

		dprintk("%s() VSB_8\n", __FUNCTION__);



		//au8522_writereg(state, 0x410b, 0x84); // Serial



		//au8522_writereg(state, 0x8090, 0x82);

		au8522_writereg(state, 0x8090, 0x84);

		au8522_writereg(state, 0x4092, 0x11);

		au8522_writereg(state, 0x2005, 0x00);

		au8522_writereg(state, 0x8091, 0x80);



		au8522_writereg(state, 0x80a3, 0x0c);

		au8522_writereg(state, 0x80a4, 0xe8);

		au8522_writereg(state, 0x8081, 0xc4);

		au8522_writereg(state, 0x80a5, 0x40);

		au8522_writereg(state, 0x80a7, 0x40);

		au8522_writereg(state, 0x80a6, 0x67);

		au8522_writereg(state, 0x8262, 0x20);

		au8522_writereg(state, 0x821c, 0x30);

		au8522_writereg(state, 0x80d8, 0x1a);

		au8522_writereg(state, 0x8227, 0xa0);

		au8522_writereg(state, 0x8121, 0xff);

		au8522_writereg(state, 0x80a8, 0xf0);

		au8522_writereg(state, 0x80a9, 0x05);

		au8522_writereg(state, 0x80aa, 0x77);

		au8522_writereg(state, 0x80ab, 0xf0);

		au8522_writereg(state, 0x80ac, 0x05);

		au8522_writereg(state, 0x80ad, 0x77);

		au8522_writereg(state, 0x80ae, 0x41);

		au8522_writereg(state, 0x80af, 0x66);

		au8522_writereg(state, 0x821b, 0xcc);

		au8522_writereg(state, 0x821d, 0x80);

		au8522_writereg(state, 0x80b5, 0xfb);

		au8522_writereg(state, 0x80b6, 0x8e);

		au8522_writereg(state, 0x80b7, 0x39);

		au8522_writereg(state, 0x80a4, 0xe8);

		au8522_writereg(state, 0x8231, 0x13);

		break;

	case QAM_64:

	case QAM_256:

		au8522_writereg(state, 0x80a3, 0x09);

		au8522_writereg(state, 0x80a4, 0x00);

		au8522_writereg(state, 0x8081, 0xc4);

		au8522_writereg(state, 0x80a5, 0x40);

		au8522_writereg(state, 0x80b5, 0xfb);

		au8522_writereg(state, 0x80b6, 0x8e);

		au8522_writereg(state, 0x80b7, 0x39);

		au8522_writereg(state, 0x80aa, 0x77);

		au8522_writereg(state, 0x80ad, 0x77);

		au8522_writereg(state, 0x80a6, 0x67);

		au8522_writereg(state, 0x8262, 0x20);

		au8522_writereg(state, 0x821c, 0x30);

		au8522_writereg(state, 0x80b8, 0x3e);

		au8522_writereg(state, 0x80b9, 0xf0);

		au8522_writereg(state, 0x80ba, 0x01);

		au8522_writereg(state, 0x80bb, 0x18);

		au8522_writereg(state, 0x80bc, 0x50);

		au8522_writereg(state, 0x80bd, 0x00);

		au8522_writereg(state, 0x80be, 0xea);

		au8522_writereg(state, 0x80bf, 0xef);

		au8522_writereg(state, 0x80c0, 0xfc);

		au8522_writereg(state, 0x80c1, 0xbd);

		au8522_writereg(state, 0x80c2, 0x1f);

		au8522_writereg(state, 0x80c3, 0xfc);

		au8522_writereg(state, 0x80c4, 0xdd);

		au8522_writereg(state, 0x80c5, 0xaf);

		au8522_writereg(state, 0x80c6, 0x00);

		au8522_writereg(state, 0x80c7, 0x38);

		au8522_writereg(state, 0x80c8, 0x30);

		au8522_writereg(state, 0x80c9, 0x05);

		au8522_writereg(state, 0x80ca, 0x4a);

		au8522_writereg(state, 0x80cb, 0xd0);

		au8522_writereg(state, 0x80cc, 0x01);

		au8522_writereg(state, 0x80cd, 0xd9);

		au8522_writereg(state, 0x80ce, 0x6f);

		au8522_writereg(state, 0x80cf, 0xf9);

		au8522_writereg(state, 0x80d0, 0x70);

		au8522_writereg(state, 0x80d1, 0xdf);

		au8522_writereg(state, 0x80d2, 0xf7);

		au8522_writereg(state, 0x80d3, 0xc2);

		au8522_writereg(state, 0x80d4, 0xdf);

		au8522_writereg(state, 0x80d5, 0x02);

		au8522_writereg(state, 0x80d6, 0x9a);

		au8522_writereg(state, 0x80d7, 0xd0);

		au8522_writereg(state, 0x8250, 0x0d);

		au8522_writereg(state, 0x8251, 0xcd);

		au8522_writereg(state, 0x8252, 0xe0);

		au8522_writereg(state, 0x8253, 0x05);

		au8522_writereg(state, 0x8254, 0xa7);

		au8522_writereg(state, 0x8255, 0xff);

		au8522_writereg(state, 0x8256, 0xed);

		au8522_writereg(state, 0x8257, 0x5b);

		au8522_writereg(state, 0x8258, 0xae);

		au8522_writereg(state, 0x8259, 0xe6);

		au8522_writereg(state, 0x825a, 0x3d);

		au8522_writereg(state, 0x825b, 0x0f);

		au8522_writereg(state, 0x825c, 0x0d);

		au8522_writereg(state, 0x825d, 0xea);

		au8522_writereg(state, 0x825e, 0xf2);

		au8522_writereg(state, 0x825f, 0x51);

		au8522_writereg(state, 0x8260, 0xf5);

		au8522_writereg(state, 0x8261, 0x06);

		au8522_writereg(state, 0x821a, 0x00);

		au8522_writereg(state, 0x8546, 0x40);

		au8522_writereg(state, 0x8210, 0x26);

		au8522_writereg(state, 0x8211, 0xf6);

		au8522_writereg(state, 0x8212, 0x84);

		au8522_writereg(state, 0x8213, 0x02);

		au8522_writereg(state, 0x8502, 0x01);

		au8522_writereg(state, 0x8121, 0x04);

		au8522_writereg(state, 0x8122, 0x04);

		au8522_writereg(state, 0x852e, 0x10);

		au8522_writereg(state, 0x80a4, 0xca);

		au8522_writereg(state, 0x80a7, 0x40);

		au8522_writereg(state, 0x8526, 0x01);

		break;

	default:

		dprintk("%s() Invalid modulation\n", __FUNCTION__);

		return -EINVAL;

	}



	state->current_modulation = m;



	return 0;

}



/* Talk to the demod, set the FEC, GUARD, QAM settings etc */

static int au8522_set_frontend (struct dvb_frontend* fe,

	struct dvb_frontend_parameters *p)

{

	struct au8522_state* state = fe->demodulator_priv;



	dprintk("%s(frequency=%d)\n", __FUNCTION__, p->frequency);



	state->current_frequency = p->frequency;



	au8522_enable_modulation(fe, p->u.vsb.modulation);



	/* Allow the demod to settle */

	msleep(100);



	if (fe->ops.tuner_ops.set_params) {

		if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1);

		fe->ops.tuner_ops.set_params(fe, p);

		if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);

	}



	return 0;

}



/* Reset the demod hardware and reset all of the configuration registers

   to a default state. */

static int au8522_init(struct dvb_frontend* fe)

{

	struct au8522_state* state = fe->demodulator_priv;

	dprintk("%s()\n", __FUNCTION__);



	au8522_writereg(state, 0xa4, 1 << 5);



	au8522_i2c_gate_ctrl(fe, 1);



	return 0;

}



static int au8522_read_status(struct dvb_frontend* fe, fe_status_t* status)

{

	struct au8522_state* state = fe->demodulator_priv;

	u8 reg;

	u32 tuner_status = 0;



	*status = 0;



	if (state->current_modulation == VSB_8) {

		dprintk("%s() Checking VSB_8\n", __FUNCTION__);

		//au8522_writereg(state, 0x80a4, 0x20);

		reg = au8522_readreg(state, 0x4088);

		if(reg & 0x01)

			*status |= FE_HAS_VITERBI;

		if(reg & 0x02)

			*status |= FE_HAS_LOCK | FE_HAS_SYNC;

	} else {

		dprintk("%s() Checking QAM\n", __FUNCTION__);

		reg = au8522_readreg(state, 0x4541);

		if(reg & 0x80)

			*status |= FE_HAS_VITERBI;

		if(reg & 0x20)

			*status |= FE_HAS_LOCK | FE_HAS_SYNC;

	}



	switch(state->config->status_mode) {

	case AU8522_DEMODLOCKING:

		dprintk("%s() DEMODLOCKING\n", __FUNCTION__);

		if (*status & FE_HAS_VITERBI)

			*status |= FE_HAS_CARRIER | FE_HAS_SIGNAL;

		break;

	case AU8522_TUNERLOCKING:

		/* Get the tuner status */

		dprintk("%s() TUNERLOCKING\n", __FUNCTION__);

		if (fe->ops.tuner_ops.get_status) {

			if (fe->ops.i2c_gate_ctrl)

				fe->ops.i2c_gate_ctrl(fe, 1);



			fe->ops.tuner_ops.get_status(fe, &tuner_status);



			if (fe->ops.i2c_gate_ctrl)

				fe->ops.i2c_gate_ctrl(fe, 0);

		}

		if (tuner_status)

			*status |= FE_HAS_CARRIER | FE_HAS_SIGNAL;

		break;

	}



	dprintk("%s() status 0x%08x\n", __FUNCTION__, *status);



	return 0;

}



static int au8522_read_snr(struct dvb_frontend* fe, u16* snr)

{

	dprintk("%s()\n", __FUNCTION__);



	*snr = 0;



	return 0;

}



static int au8522_read_signal_strength(struct dvb_frontend* fe,

					u16* signal_strength)

{

	return au8522_read_snr(fe, signal_strength);

}



static int au8522_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)

{

	struct au8522_state* state = fe->demodulator_priv;



	*ucblocks = au8522_readreg(state, 0x4087);



	return 0;

}



static int au8522_read_ber(struct dvb_frontend* fe, u32* ber)

{

	return au8522_read_ucblocks(fe, ber);

}



static int au8522_get_frontend(struct dvb_frontend* fe,

				struct dvb_frontend_parameters *p)

{

	struct au8522_state* state = fe->demodulator_priv;



	p->frequency = state->current_frequency;

	p->u.vsb.modulation = state->current_modulation;



	return 0;

}



static int au8522_get_tune_settings(struct dvb_frontend* fe,

				     struct dvb_frontend_tune_settings *tune)

{

	tune->min_delay_ms = 1000;

	return 0;

}



static void au8522_release(struct dvb_frontend* fe)

{

	struct au8522_state* state = fe->demodulator_priv;

	kfree(state);

}



static struct dvb_frontend_ops au8522_ops;



struct dvb_frontend* au8522_attach(const struct au8522_config* config,

				    struct i2c_adapter* i2c)

{

	struct au8522_state* state = NULL;



	/* allocate memory for the internal state */

	state = kmalloc(sizeof(struct au8522_state), GFP_KERNEL);

	if (state == NULL)

		goto error;



	/* setup the state */

	state->config = config;

	state->i2c = i2c;

	/* create dvb_frontend */

	memcpy(&state->frontend.ops, &au8522_ops,

	       sizeof(struct dvb_frontend_ops));

	state->frontend.demodulator_priv = state;



	if (au8522_init(&state->frontend) != 0) {

		printk(KERN_ERR "%s: Failed to initialize correctly\n",

			__FUNCTION__);

		goto error;

	}



	/* Note: Leaving the I2C gate open here. */

	au8522_i2c_gate_ctrl(&state->frontend, 1);



	return &state->frontend;



error:

	kfree(state);

	return NULL;

}



static struct dvb_frontend_ops au8522_ops = {



	.info = {

		.name			= "Auvitek AU8522 QAM/8VSB Frontend",

		.type			= FE_ATSC,

		.frequency_min		= 54000000,

		.frequency_max		= 858000000,

		.frequency_stepsize	= 62500,

		.caps = FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_8VSB

	},



	.init                 = au8522_init,

	.i2c_gate_ctrl        = au8522_i2c_gate_ctrl,

	.set_frontend         = au8522_set_frontend,

	.get_frontend         = au8522_get_frontend,

	.get_tune_settings    = au8522_get_tune_settings,

	.read_status          = au8522_read_status,

	.read_ber             = au8522_read_ber,

	.read_signal_strength = au8522_read_signal_strength,

	.read_snr             = au8522_read_snr,

	.read_ucblocks        = au8522_read_ucblocks,

	.release              = au8522_release,

};



module_param(debug, int, 0644);

MODULE_PARM_DESC(debug, "Enable verbose debug messages");



MODULE_DESCRIPTION("Auvitek AU8522 QAM-B/ATSC Demodulator driver");

MODULE_AUTHOR("Steven Toth");

MODULE_LICENSE("GPL");



EXPORT_SYMBOL(au8522_attach);



/*

 * Local variables:

 * c-basic-offset: 8

 */

drivers/media/dvb/frontends/au8522.h

0 → 100644
+55 −0
Original line number Diff line number Diff line 
/*

    Auvitek AU8522 QAM/8VSB demodulator driver



    Copyright (C) 2008 Steven Toth <stoth@hauppauge.com>



    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.



*/



#ifndef __AU8522_H__

#define __AU8522_H__



#include <linux/dvb/frontend.h>



struct au8522_config

{

	/* the demodulator's i2c address */

	u8 demod_address;



	/* Return lock status based on tuner lock, or demod lock */

#define AU8522_TUNERLOCKING 0

#define AU8522_DEMODLOCKING 1

	u8 status_mode;

};



#if defined(CONFIG_DVB_AU8522) || (defined(CONFIG_DVB_AU8522_MODULE) && defined(MODULE))

extern struct dvb_frontend* au8522_attach(const struct au8522_config* config,

					   struct i2c_adapter* i2c);

#else

static inline struct dvb_frontend* au8522_attach(const struct au8522_config* config,

						  struct i2c_adapter* i2c)

{

	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);

	return NULL;

}

#endif /* CONFIG_DVB_AU8522 */



#endif /* __AU8522_H__ */



/*

 * Local variables:

 * c-basic-offset: 8

 */

drivers/media/video/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -698,6 +698,8 @@ source "drivers/media/video/cx88/Kconfig" 


source "drivers/media/video/cx23885/Kconfig"



source "drivers/media/video/au0828/Kconfig"



source "drivers/media/video/ivtv/Kconfig"



config VIDEO_M32R_AR