[linux.git] / drivers / media / dvb-frontends / or51132.c

/*
 *    Support for OR51132 (pcHDTV HD-3000) - VSB/QAM
 *
 *
 *    Copyright (C) 2007 Trent Piepho <[email protected]>
 *
 *    Copyright (C) 2005 Kirk Lapray <[email protected]>
 *
 *    Based on code from Jack Kelliher ([email protected])
 *                           Copyright (C) 2002 & pcHDTV, inc.
 *
 *    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.
 *
*/

/*
 * This driver needs two external firmware files. Please copy
 * "dvb-fe-or51132-vsb.fw" and "dvb-fe-or51132-qam.fw" to
 * /usr/lib/hotplug/firmware/ or /lib/firmware/
 * (depending on configuration of firmware hotplug).
 */
#define OR51132_VSB_FIRMWARE "dvb-fe-or51132-vsb.fw"
#define OR51132_QAM_FIRMWARE "dvb-fe-or51132-qam.fw"

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <asm/byteorder.h>

#include "dvb_math.h"
#include "dvb_frontend.h"
#include "or51132.h"

static int debug;
#define dprintk(args...) \
	do { \
		if (debug) printk(KERN_DEBUG "or51132: " args); \
	} while (0)


struct or51132_state
{
	struct i2c_adapter* i2c;

	/* Configuration settings */
	const struct or51132_config* config;

	struct dvb_frontend frontend;

	/* Demodulator private data */
	enum fe_modulation current_modulation;
	u32 snr; /* Result of last SNR calculation */

	/* Tuner private data */
	u32 current_frequency;
};


/* Write buffer to demod */
static int or51132_writebuf(struct or51132_state *state, const u8 *buf, int len)
{
	int err;
	struct i2c_msg msg = { .addr = state->config->demod_address,
			       .flags = 0, .buf = (u8*)buf, .len = len };

	/* msleep(20); */ /* doesn't appear to be necessary */
	if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
		printk(KERN_WARNING "or51132: I2C write (addr 0x%02x len %d) error: %d\n",
		       msg.addr, msg.len, err);
		return -EREMOTEIO;
	}
	return 0;
}

/* Write constant bytes, e.g. or51132_writebytes(state, 0x04, 0x42, 0x00);
   Less code and more efficient that loading a buffer on the stack with
   the bytes to send and then calling or51132_writebuf() on that. */
#define or51132_writebytes(state, data...)  \
	({ static const u8 _data[] = {data}; \
	or51132_writebuf(state, _data, sizeof(_data)); })

/* Read data from demod into buffer.  Returns 0 on success. */
static int or51132_readbuf(struct or51132_state *state, u8 *buf, int len)
{
	int err;
	struct i2c_msg msg = { .addr = state->config->demod_address,
			       .flags = I2C_M_RD, .buf = buf, .len = len };

	/* msleep(20); */ /* doesn't appear to be necessary */
	if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
		printk(KERN_WARNING "or51132: I2C read (addr 0x%02x len %d) error: %d\n",
		       msg.addr, msg.len, err);
		return -EREMOTEIO;
	}
	return 0;
}

/* Reads a 16-bit demod register.  Returns <0 on error. */
static int or51132_readreg(struct or51132_state *state, u8 reg)
{
	u8 buf[2] = { 0x04, reg };
	struct i2c_msg msg[2] = {
		{.addr = state->config->demod_address, .flags = 0,
		 .buf = buf, .len = 2 },
		{.addr = state->config->demod_address, .flags = I2C_M_RD,
		 .buf = buf, .len = 2 }};
	int err;

	if ((err = i2c_transfer(state->i2c, msg, 2)) != 2) {
		printk(KERN_WARNING "or51132: I2C error reading register %d: %d\n",
		       reg, err);
		return -EREMOTEIO;
	}
	return buf[0] | (buf[1] << 8);
}

static int or51132_load_firmware (struct dvb_frontend* fe, const struct firmware *fw)
{
	struct or51132_state* state = fe->demodulator_priv;
	static const u8 run_buf[] = {0x7F,0x01};
	u8 rec_buf[8];
	u32 firmwareAsize, firmwareBsize;
	int i,ret;

	dprintk("Firmware is %Zd bytes\n",fw->size);

	/* Get size of firmware A and B */
	firmwareAsize = le32_to_cpu(*((__le32*)fw->data));
	dprintk("FirmwareA is %i bytes\n",firmwareAsize);
	firmwareBsize = le32_to_cpu(*((__le32*)(fw->data+4)));
	dprintk("FirmwareB is %i bytes\n",firmwareBsize);

	/* Upload firmware */
	if ((ret = or51132_writebuf(state, &fw->data[8], firmwareAsize))) {
		printk(KERN_WARNING "or51132: load_firmware error 1\n");
		return ret;
	}
	if ((ret = or51132_writebuf(state, &fw->data[8+firmwareAsize],
				    firmwareBsize))) {
		printk(KERN_WARNING "or51132: load_firmware error 2\n");
		return ret;
	}

	if ((ret = or51132_writebuf(state, run_buf, 2))) {
		printk(KERN_WARNING "or51132: load_firmware error 3\n");
		return ret;
	}
	if ((ret = or51132_writebuf(state, run_buf, 2))) {
		printk(KERN_WARNING "or51132: load_firmware error 4\n");
		return ret;
	}

	/* 50ms for operation to begin */
	msleep(50);

	/* Read back ucode version to besure we loaded correctly and are really up and running */
	/* Get uCode version */
	if ((ret = or51132_writebytes(state, 0x10, 0x10, 0x00))) {
		printk(KERN_WARNING "or51132: load_firmware error a\n");
		return ret;
	}
	if ((ret = or51132_writebytes(state, 0x04, 0x17))) {
		printk(KERN_WARNING "or51132: load_firmware error b\n");
		return ret;
	}
	if ((ret = or51132_writebytes(state, 0x00, 0x00))) {
		printk(KERN_WARNING "or51132: load_firmware error c\n");
		return ret;
	}
	for (i=0;i<4;i++) {
		/* Once upon a time, this command might have had something
		   to do with getting the firmware version, but it's
		   not used anymore:
		   {0x04,0x00,0x30,0x00,i+1} */
		/* Read 8 bytes, two bytes at a time */
		if ((ret = or51132_readbuf(state, &rec_buf[i*2], 2))) {
			printk(KERN_WARNING
			       "or51132: load_firmware error d - %d\n",i);
			return ret;
		}
	}

	printk(KERN_WARNING
	       "or51132: Version: %02X%02X%02X%02X-%02X%02X%02X%02X (%02X%01X-%01X-%02X%01X-%01X)\n",
	       rec_buf[1],rec_buf[0],rec_buf[3],rec_buf[2],
	       rec_buf[5],rec_buf[4],rec_buf[7],rec_buf[6],
	       rec_buf[3],rec_buf[2]>>4,rec_buf[2]&0x0f,
	       rec_buf[5],rec_buf[4]>>4,rec_buf[4]&0x0f);

	if ((ret = or51132_writebytes(state, 0x10, 0x00, 0x00))) {
		printk(KERN_WARNING "or51132: load_firmware error e\n");
		return ret;
	}
	return 0;
};

static int or51132_init(struct dvb_frontend* fe)
{
	return 0;
}

static int or51132_read_ber(struct dvb_frontend* fe, u32* ber)
{
	*ber = 0;
	return 0;
}

static int or51132_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
{
	*ucblocks = 0;
	return 0;
}

static int or51132_sleep(struct dvb_frontend* fe)
{
	return 0;
}

static int or51132_setmode(struct dvb_frontend* fe)
{
	struct or51132_state* state = fe->demodulator_priv;
	u8 cmd_buf1[3] = {0x04, 0x01, 0x5f};
	u8 cmd_buf2[3] = {0x1c, 0x00, 0 };

	dprintk("setmode %d\n",(int)state->current_modulation);

	switch (state->current_modulation) {
	case VSB_8:
		/* Auto CH, Auto NTSC rej, MPEGser, MPEG2tr, phase noise-high */
		cmd_buf1[2] = 0x50;
		/* REC MODE inv IF spectrum, Normal */
		cmd_buf2[1] = 0x03;
		/* Channel MODE ATSC/VSB8 */
		cmd_buf2[2] = 0x06;
		break;
	/* All QAM modes are:
	   Auto-deinterleave; MPEGser, MPEG2tr, phase noise-high
	   REC MODE Normal Carrier Lock */
	case QAM_AUTO:
		/* Channel MODE Auto QAM64/256 */
		cmd_buf2[2] = 0x4f;
		break;
	case QAM_256:
		/* Channel MODE QAM256 */
		cmd_buf2[2] = 0x45;
		break;
	case QAM_64:
		/* Channel MODE QAM64 */
		cmd_buf2[2] = 0x43;
		break;
	default:
		printk(KERN_WARNING
		       "or51132: setmode: Modulation set to unsupported value (%d)\n",
		       state->current_modulation);
		return -EINVAL;
	}

	/* Set Receiver 1 register */
	if (or51132_writebuf(state, cmd_buf1, 3)) {
		printk(KERN_WARNING "or51132: set_mode error 1\n");
		return -EREMOTEIO;
	}
	dprintk("set #1 to %02x\n", cmd_buf1[2]);

	/* Set operation mode in Receiver 6 register */
	if (or51132_writebuf(state, cmd_buf2, 3)) {
		printk(KERN_WARNING "or51132: set_mode error 2\n");
		return -EREMOTEIO;
	}
	dprintk("set #6 to 0x%02x%02x\n", cmd_buf2[1], cmd_buf2[2]);

	return 0;
}

/* Some modulations use the same firmware.  This classifies modulations
   by the firmware they use. */
#define MOD_FWCLASS_UNKNOWN	0
#define MOD_FWCLASS_VSB		1
#define MOD_FWCLASS_QAM		2
static int modulation_fw_class(enum fe_modulation modulation)
{
	switch(modulation) {
	case VSB_8:
		return MOD_FWCLASS_VSB;
	case QAM_AUTO:
	case QAM_64:
	case QAM_256:
		return MOD_FWCLASS_QAM;
	default:
		return MOD_FWCLASS_UNKNOWN;
	}
}

static int or51132_set_parameters(struct dvb_frontend *fe)
{
	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
	int ret;
	struct or51132_state* state = fe->demodulator_priv;
	const struct firmware *fw;
	const char *fwname;
	int clock_mode;

	/* Upload new firmware only if we need a different one */
	if (modulation_fw_class(state->current_modulation) !=
	    modulation_fw_class(p->modulation)) {
		switch (modulation_fw_class(p->modulation)) {
		case MOD_FWCLASS_VSB:
			dprintk("set_parameters VSB MODE\n");
			fwname = OR51132_VSB_FIRMWARE;

			/* Set non-punctured clock for VSB */
			clock_mode = 0;
			break;
		case MOD_FWCLASS_QAM:
			dprintk("set_parameters QAM MODE\n");
			fwname = OR51132_QAM_FIRMWARE;

			/* Set punctured clock for QAM */
			clock_mode = 1;
			break;
		default:
			printk("or51132: Modulation type(%d) UNSUPPORTED\n",
			       p->modulation);
			return -1;
		}
		printk("or51132: Waiting for firmware upload(%s)...\n",
		       fwname);
		ret = request_firmware(&fw, fwname, state->i2c->dev.parent);
		if (ret) {
			printk(KERN_WARNING "or51132: No firmware up"
			       "loaded(timeout or file not found?)\n");
			return ret;
		}
		ret = or51132_load_firmware(fe, fw);
		release_firmware(fw);
		if (ret) {
			printk(KERN_WARNING "or51132: Writing firmware to "
			       "device failed!\n");
			return ret;
		}
		printk("or51132: Firmware upload complete.\n");
		state->config->set_ts_params(fe, clock_mode);
	}
	/* Change only if we are actually changing the modulation */
	if (state->current_modulation != p->modulation) {
		state->current_modulation = p->modulation;
		or51132_setmode(fe);
	}

	if (fe->ops.tuner_ops.set_params) {
		fe->ops.tuner_ops.set_params(fe);
		if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
	}

	/* Set to current mode */
	or51132_setmode(fe);

	/* Update current frequency */
	state->current_frequency = p->frequency;
	return 0;
}

static int or51132_get_parameters(struct dvb_frontend* fe,
				  struct dtv_frontend_properties *p)
{
	struct or51132_state* state = fe->demodulator_priv;
	int status;
	int retry = 1;

start:
	/* Receiver Status */
	if ((status = or51132_readreg(state, 0x00)) < 0) {
		printk(KERN_WARNING "or51132: get_parameters: error reading receiver status\n");
		return -EREMOTEIO;
	}
	switch(status&0xff) {
	case 0x06:
		p->modulation = VSB_8;
		break;
	case 0x43:
		p->modulation = QAM_64;
		break;
	case 0x45:
		p->modulation = QAM_256;
		break;
	default:
		if (retry--)
			goto start;
		printk(KERN_WARNING "or51132: unknown status 0x%02x\n",
		       status&0xff);
		return -EREMOTEIO;
	}

	/* FIXME: Read frequency from frontend, take AFC into account */
	p->frequency = state->current_frequency;

	/* FIXME: How to read inversion setting? Receiver 6 register? */
	p->inversion = INVERSION_AUTO;

	return 0;
}

static int or51132_read_status(struct dvb_frontend *fe, enum fe_status *status)
{
	struct or51132_state* state = fe->demodulator_priv;
	int reg;

	/* Receiver Status */
	if ((reg = or51132_readreg(state, 0x00)) < 0) {
		printk(KERN_WARNING "or51132: read_status: error reading receiver status: %d\n", reg);
		*status = 0;
		return -EREMOTEIO;
	}
	dprintk("%s: read_status %04x\n", __func__, reg);

	if (reg & 0x0100) /* Receiver Lock */
		*status = FE_HAS_SIGNAL|FE_HAS_CARRIER|FE_HAS_VITERBI|
			  FE_HAS_SYNC|FE_HAS_LOCK;
	else
		*status = 0;
	return 0;
}

/* Calculate SNR estimation (scaled by 2^24)

   8-VSB SNR and QAM equations from Oren datasheets

   For 8-VSB:
     SNR[dB] = 10 * log10(897152044.8282 / MSE^2 ) - K

     Where K = 0 if NTSC rejection filter is OFF; and
	   K = 3 if NTSC rejection filter is ON

   For QAM64:
     SNR[dB] = 10 * log10(897152044.8282 / MSE^2 )

   For QAM256:
     SNR[dB] = 10 * log10(907832426.314266  / MSE^2 )

   We re-write the snr equation as:
     SNR * 2^24 = 10*(c - 2*intlog10(MSE))
   Where for QAM256, c = log10(907832426.314266) * 2^24
   and for 8-VSB and QAM64, c = log10(897152044.8282) * 2^24 */

static u32 calculate_snr(u32 mse, u32 c)
{
	if (mse == 0) /* No signal */
		return 0;

	mse = 2*intlog10(mse);
	if (mse > c) {
		/* Negative SNR, which is possible, but realisticly the
		demod will lose lock before the signal gets this bad.  The
		API only allows for unsigned values, so just return 0 */
		return 0;
	}
	return 10*(c - mse);
}

static int or51132_read_snr(struct dvb_frontend* fe, u16* snr)
{
	struct or51132_state* state = fe->demodulator_priv;
	int noise, reg;
	u32 c, usK = 0;
	int retry = 1;

start:
	/* SNR after Equalizer */
	noise = or51132_readreg(state, 0x02);
	if (noise < 0) {
		printk(KERN_WARNING "or51132: read_snr: error reading equalizer\n");
		return -EREMOTEIO;
	}
	dprintk("read_snr noise (%d)\n", noise);

	/* Read status, contains modulation type for QAM_AUTO and
	   NTSC filter for VSB */
	reg = or51132_readreg(state, 0x00);
	if (reg < 0) {
		printk(KERN_WARNING "or51132: read_snr: error reading receiver status\n");
		return -EREMOTEIO;
	}

	switch (reg&0xff) {
	case 0x06:
		if (reg & 0x1000) usK = 3 << 24;
		/* Fall through to QAM64 case */
	case 0x43:
		c = 150204167;
		break;
	case 0x45:
		c = 150290396;
		break;
	default:
		printk(KERN_WARNING "or51132: unknown status 0x%02x\n", reg&0xff);
		if (retry--) goto start;
		return -EREMOTEIO;
	}
	dprintk("%s: modulation %02x, NTSC rej O%s\n", __func__,
		reg&0xff, reg&0x1000?"n":"ff");

	/* Calculate SNR using noise, c, and NTSC rejection correction */
	state->snr = calculate_snr(noise, c) - usK;
	*snr = (state->snr) >> 16;

	dprintk("%s: noise = 0x%08x, snr = %d.%02d dB\n", __func__, noise,
		state->snr >> 24, (((state->snr>>8) & 0xffff) * 100) >> 16);

	return 0;
}

static int or51132_read_signal_strength(struct dvb_frontend* fe, u16* strength)
{
	/* Calculate Strength from SNR up to 35dB */
	/* Even though the SNR can go higher than 35dB, there is some comfort */
	/* factor in having a range of strong signals that can show at 100%   */
	struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv;
	u16 snr;
	int ret;

	ret = fe->ops.read_snr(fe, &snr);
	if (ret != 0)
		return ret;
	/* Rather than use the 8.8 value snr, use state->snr which is 8.24 */
	/* scale the range 0 - 35*2^24 into 0 - 65535 */
	if (state->snr >= 8960 * 0x10000)
		*strength = 0xffff;
	else
		*strength = state->snr / 8960;

	return 0;
}

static int or51132_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fe_tune_settings)
{
	fe_tune_settings->min_delay_ms = 500;
	fe_tune_settings->step_size = 0;
	fe_tune_settings->max_drift = 0;

	return 0;
}

static void or51132_release(struct dvb_frontend* fe)
{
	struct or51132_state* state = fe->demodulator_priv;
	kfree(state);
}

static struct dvb_frontend_ops or51132_ops;

struct dvb_frontend* or51132_attach(const struct or51132_config* config,
				    struct i2c_adapter* i2c)
{
	struct or51132_state* state = NULL;

	/* Allocate memory for the internal state */
	state = kzalloc(sizeof(struct or51132_state), GFP_KERNEL);
	if (state == NULL)
		return NULL;

	/* Setup the state */
	state->config = config;
	state->i2c = i2c;
	state->current_frequency = -1;
	state->current_modulation = -1;

	/* Create dvb_frontend */
	memcpy(&state->frontend.ops, &or51132_ops, sizeof(struct dvb_frontend_ops));
	state->frontend.demodulator_priv = state;
	return &state->frontend;
}

static struct dvb_frontend_ops or51132_ops = {
	.delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },
	.info = {
		.name			= "Oren OR51132 VSB/QAM Frontend",
		.frequency_min		= 44000000,
		.frequency_max		= 958000000,
		.frequency_stepsize	= 166666,
		.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
			FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
			FE_CAN_QAM_64 | FE_CAN_QAM_256 | FE_CAN_QAM_AUTO |
			FE_CAN_8VSB
	},

	.release = or51132_release,

	.init = or51132_init,
	.sleep = or51132_sleep,

	.set_frontend = or51132_set_parameters,
	.get_frontend = or51132_get_parameters,
	.get_tune_settings = or51132_get_tune_settings,

	.read_status = or51132_read_status,
	.read_ber = or51132_read_ber,
	.read_signal_strength = or51132_read_signal_strength,
	.read_snr = or51132_read_snr,
	.read_ucblocks = or51132_read_ucblocks,
};

module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");

MODULE_DESCRIPTION("OR51132 ATSC [pcHDTV HD-3000] (8VSB & ITU J83 AnnexB FEC QAM64/256) Demodulator Driver");
MODULE_AUTHOR("Kirk Lapray");
MODULE_AUTHOR("Trent Piepho");
MODULE_LICENSE("GPL");

EXPORT_SYMBOL(or51132_attach);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Support for OR51132 (pcHDTV HD-3000) - VSB/QAM
	3	*
d9e54324 TP	4	*
	5	* Copyright (C) 2007 Trent Piepho <[email protected]>
	6	*
1da177e4 LT	7	* Copyright (C) 2005 Kirk Lapray <[email protected]>
	8	*
	9	* Based on code from Jack Kelliher ([email protected])
	10	* Copyright (C) 2002 & pcHDTV, inc.
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License as published by
	14	* the Free Software Foundation; either version 2 of the License, or
	15	* (at your option) any later version.
	16	*
	17	* This program is distributed in the hope that it will be useful,
	18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	* GNU General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU General Public License
	23	* along with this program; if not, write to the Free Software
	24	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	25	*
	26	*/
	27
	28	/*
	29	* This driver needs two external firmware files. Please copy
	30	* "dvb-fe-or51132-vsb.fw" and "dvb-fe-or51132-qam.fw" to
	31	* /usr/lib/hotplug/firmware/ or /lib/firmware/
	32	* (depending on configuration of firmware hotplug).
	33	*/
	34	#define OR51132_VSB_FIRMWARE "dvb-fe-or51132-vsb.fw"
	35	#define OR51132_QAM_FIRMWARE "dvb-fe-or51132-qam.fw"
	36
	37	#include <linux/kernel.h>
	38	#include <linux/module.h>
1da177e4 LT	39	#include <linux/init.h>
1da177e4 LT	40	#include <linux/delay.h>
4e57b681 TS	41	#include <linux/string.h>
4e57b681 TS	42	#include <linux/slab.h>
1da177e4 LT	43	#include <asm/byteorder.h>
1da177e4 LT	44
b2fb7f55	45	#include "dvb_math.h"
1da177e4	46	#include "dvb_frontend.h"
1da177e4 LT	47	#include "or51132.h"
	48
	49	static int debug;
	50	#define dprintk(args...) \
	51	do { \
	52	if (debug) printk(KERN_DEBUG "or51132: " args); \
	53	} while (0)
	54
	55
	56	struct or51132_state
	57	{
	58	struct i2c_adapter* i2c;
1da177e4 LT	59
	60	/* Configuration settings */
	61	const struct or51132_config* config;
	62
	63	struct dvb_frontend frontend;
	64
	65	/* Demodulator private data */
0df289a2	66	enum fe_modulation current_modulation;
b2fb7f55	67	u32 snr; /* Result of last SNR calculation */
1da177e4 LT	68
	69	/* Tuner private data */
	70	u32 current_frequency;
	71	};
	72
d9e54324 TP	73
	74	/* Write buffer to demod */
	75	static int or51132_writebuf(struct or51132_state state, const u8 buf, int len)
1da177e4 LT	76	{
1da177e4 LT	77	int err;
d9e54324 TP	78	struct i2c_msg msg = { .addr = state->config->demod_address,
d9e54324 TP	79	.flags = 0, .buf = (u8*)buf, .len = len };
1da177e4	80
d9e54324	81	/* msleep(20); / / doesn't appear to be necessary */
1da177e4	82	if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
d9e54324 TP	83	printk(KERN_WARNING "or51132: I2C write (addr 0x%02x len %d) error: %d\n",
d9e54324 TP	84	msg.addr, msg.len, err);
1da177e4 LT	85	return -EREMOTEIO;
1da177e4 LT	86	}
1da177e4 LT	87	return 0;
	88	}
	89
d9e54324 TP	90	/* Write constant bytes, e.g. or51132_writebytes(state, 0x04, 0x42, 0x00);
	91	Less code and more efficient that loading a buffer on the stack with
	92	the bytes to send and then calling or51132_writebuf() on that. */
	93	#define or51132_writebytes(state, data...) \
cbfa6f2a	94	({ static const u8 _data[] = {data}; \
d9e54324 TP	95	or51132_writebuf(state, _data, sizeof(_data)); })
	96
	97	/* Read data from demod into buffer. Returns 0 on success. */
	98	static int or51132_readbuf(struct or51132_state state, u8 buf, int len)
1da177e4 LT	99	{
1da177e4 LT	100	int err;
d9e54324 TP	101	struct i2c_msg msg = { .addr = state->config->demod_address,
d9e54324 TP	102	.flags = I2C_M_RD, .buf = buf, .len = len };
1da177e4	103
d9e54324	104	/* msleep(20); / / doesn't appear to be necessary */
1da177e4	105	if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
d9e54324 TP	106	printk(KERN_WARNING "or51132: I2C read (addr 0x%02x len %d) error: %d\n",
d9e54324 TP	107	msg.addr, msg.len, err);
1da177e4 LT	108	return -EREMOTEIO;
1da177e4 LT	109	}
1da177e4 LT	110	return 0;
	111	}
	112
d9e54324 TP	113	/* Reads a 16-bit demod register. Returns <0 on error. */
	114	static int or51132_readreg(struct or51132_state *state, u8 reg)
	115	{
	116	u8 buf[2] = { 0x04, reg };
	117	struct i2c_msg msg[2] = {
	118	{.addr = state->config->demod_address, .flags = 0,
	119	.buf = buf, .len = 2 },
	120	{.addr = state->config->demod_address, .flags = I2C_M_RD,
	121	.buf = buf, .len = 2 }};
	122	int err;
	123
	124	if ((err = i2c_transfer(state->i2c, msg, 2)) != 2) {
	125	printk(KERN_WARNING "or51132: I2C error reading register %d: %d\n",
	126	reg, err);
	127	return -EREMOTEIO;
	128	}
18dcd55a	129	return buf[0] \| (buf[1] << 8);
d9e54324 TP	130	}
d9e54324 TP	131
1da177e4 LT	132	static int or51132_load_firmware (struct dvb_frontend* fe, const struct firmware *fw)
1da177e4 LT	133	{
b8742700	134	struct or51132_state* state = fe->demodulator_priv;
cbfa6f2a	135	static const u8 run_buf[] = {0x7F,0x01};
0ead0918	136	u8 rec_buf[8];
1da177e4 LT	137	u32 firmwareAsize, firmwareBsize;
	138	int i,ret;
	139
	140	dprintk("Firmware is %Zd bytes\n",fw->size);
	141
	142	/* Get size of firmware A and B */
18dcd55a	143	firmwareAsize = le32_to_cpu(((__le32)fw->data));
1da177e4	144	dprintk("FirmwareA is %i bytes\n",firmwareAsize);
18dcd55a	145	firmwareBsize = le32_to_cpu(((__le32)(fw->data+4)));
1da177e4 LT	146	dprintk("FirmwareB is %i bytes\n",firmwareBsize);
	147
	148	/* Upload firmware */
d9e54324	149	if ((ret = or51132_writebuf(state, &fw->data[8], firmwareAsize))) {
1da177e4 LT	150	printk(KERN_WARNING "or51132: load_firmware error 1\n");
	151	return ret;
	152	}
d9e54324 TP	153	if ((ret = or51132_writebuf(state, &fw->data[8+firmwareAsize],
d9e54324 TP	154	firmwareBsize))) {
1da177e4 LT	155	printk(KERN_WARNING "or51132: load_firmware error 2\n");
	156	return ret;
	157	}
1da177e4	158
d9e54324	159	if ((ret = or51132_writebuf(state, run_buf, 2))) {
1da177e4 LT	160	printk(KERN_WARNING "or51132: load_firmware error 3\n");
	161	return ret;
	162	}
d9e54324	163	if ((ret = or51132_writebuf(state, run_buf, 2))) {
1da177e4 LT	164	printk(KERN_WARNING "or51132: load_firmware error 4\n");
	165	return ret;
	166	}
	167
	168	/* 50ms for operation to begin */
	169	msleep(50);
	170
	171	/* Read back ucode version to besure we loaded correctly and are really up and running */
	172	/* Get uCode version */
d9e54324	173	if ((ret = or51132_writebytes(state, 0x10, 0x10, 0x00))) {
1da177e4 LT	174	printk(KERN_WARNING "or51132: load_firmware error a\n");
	175	return ret;
	176	}
d9e54324	177	if ((ret = or51132_writebytes(state, 0x04, 0x17))) {
1da177e4 LT	178	printk(KERN_WARNING "or51132: load_firmware error b\n");
	179	return ret;
	180	}
d9e54324	181	if ((ret = or51132_writebytes(state, 0x00, 0x00))) {
1da177e4 LT	182	printk(KERN_WARNING "or51132: load_firmware error c\n");
	183	return ret;
	184	}
d9e54324	185	for (i=0;i<4;i++) {
d147ed2a	186	/* Once upon a time, this command might have had something
0ead0918 TP	187	to do with getting the firmware version, but it's
	188	not used anymore:
	189	{0x04,0x00,0x30,0x00,i+1} */
	190	/* Read 8 bytes, two bytes at a time */
d9e54324	191	if ((ret = or51132_readbuf(state, &rec_buf[i*2], 2))) {
1da177e4 LT	192	printk(KERN_WARNING
	193	"or51132: load_firmware error d - %d\n",i);
	194	return ret;
	195	}
	196	}
	197
	198	printk(KERN_WARNING
	199	"or51132: Version: %02X%02X%02X%02X-%02X%02X%02X%02X (%02X%01X-%01X-%02X%01X-%01X)\n",
	200	rec_buf[1],rec_buf[0],rec_buf[3],rec_buf[2],
	201	rec_buf[5],rec_buf[4],rec_buf[7],rec_buf[6],
	202	rec_buf[3],rec_buf[2]>>4,rec_buf[2]&0x0f,
	203	rec_buf[5],rec_buf[4]>>4,rec_buf[4]&0x0f);
	204
d9e54324	205	if ((ret = or51132_writebytes(state, 0x10, 0x00, 0x00))) {
1da177e4 LT	206	printk(KERN_WARNING "or51132: load_firmware error e\n");
	207	return ret;
	208	}
	209	return 0;
	210	};
	211
	212	static int or51132_init(struct dvb_frontend* fe)
	213	{
	214	return 0;
	215	}
	216
	217	static int or51132_read_ber(struct dvb_frontend* fe, u32* ber)
	218	{
	219	*ber = 0;
	220	return 0;
	221	}
	222
	223	static int or51132_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
	224	{
	225	*ucblocks = 0;
	226	return 0;
	227	}
	228
	229	static int or51132_sleep(struct dvb_frontend* fe)
	230	{
	231	return 0;
	232	}
	233
	234	static int or51132_setmode(struct dvb_frontend* fe)
	235	{
b8742700	236	struct or51132_state* state = fe->demodulator_priv;
d9e54324 TP	237	u8 cmd_buf1[3] = {0x04, 0x01, 0x5f};
d9e54324 TP	238	u8 cmd_buf2[3] = {0x1c, 0x00, 0 };
1da177e4 LT	239
1da177e4 LT	240	dprintk("setmode %d\n",(int)state->current_modulation);
d9e54324	241
1da177e4	242	switch (state->current_modulation) {
1da177e4	243	case VSB_8:
d9e54324 TP	244	/* Auto CH, Auto NTSC rej, MPEGser, MPEG2tr, phase noise-high */
	245	cmd_buf1[2] = 0x50;
	246	/* REC MODE inv IF spectrum, Normal */
	247	cmd_buf2[1] = 0x03;
	248	/* Channel MODE ATSC/VSB8 */
	249	cmd_buf2[2] = 0x06;
1da177e4	250	break;
d9e54324 TP	251	/* All QAM modes are:
	252	Auto-deinterleave; MPEGser, MPEG2tr, phase noise-high
	253	REC MODE Normal Carrier Lock */
1da177e4	254	case QAM_AUTO:
1da177e4	255	/* Channel MODE Auto QAM64/256 */
d9e54324	256	cmd_buf2[2] = 0x4f;
1da177e4 LT	257	break;
1da177e4 LT	258	case QAM_256:
1da177e4	259	/* Channel MODE QAM256 */
d9e54324	260	cmd_buf2[2] = 0x45;
1da177e4 LT	261	break;
1da177e4 LT	262	case QAM_64:
1da177e4	263	/* Channel MODE QAM64 */
d9e54324	264	cmd_buf2[2] = 0x43;
1da177e4 LT	265	break;
1da177e4 LT	266	default:
d9e54324 TP	267	printk(KERN_WARNING
	268	"or51132: setmode: Modulation set to unsupported value (%d)\n",
	269	state->current_modulation);
	270	return -EINVAL;
	271	}
	272
	273	/* Set Receiver 1 register */
	274	if (or51132_writebuf(state, cmd_buf1, 3)) {
	275	printk(KERN_WARNING "or51132: set_mode error 1\n");
	276	return -EREMOTEIO;
	277	}
	278	dprintk("set #1 to %02x\n", cmd_buf1[2]);
	279
	280	/* Set operation mode in Receiver 6 register */
	281	if (or51132_writebuf(state, cmd_buf2, 3)) {
1da177e4	282	printk(KERN_WARNING "or51132: set_mode error 2\n");
d9e54324	283	return -EREMOTEIO;
1da177e4	284	}
d9e54324	285	dprintk("set #6 to 0x%02x%02x\n", cmd_buf2[1], cmd_buf2[2]);
1da177e4 LT	286
	287	return 0;
	288	}
	289
87184554 TP	290	/* Some modulations use the same firmware. This classifies modulations
	291	by the firmware they use. */
	292	#define MOD_FWCLASS_UNKNOWN 0
	293	#define MOD_FWCLASS_VSB 1
	294	#define MOD_FWCLASS_QAM 2
0df289a2	295	static int modulation_fw_class(enum fe_modulation modulation)
87184554 TP	296	{
	297	switch(modulation) {
	298	case VSB_8:
	299	return MOD_FWCLASS_VSB;
	300	case QAM_AUTO:
	301	case QAM_64:
	302	case QAM_256:
	303	return MOD_FWCLASS_QAM;
	304	default:
	305	return MOD_FWCLASS_UNKNOWN;
	306	}
	307	}
	308
d8f7cc28	309	static int or51132_set_parameters(struct dvb_frontend *fe)
1da177e4	310	{
d8f7cc28	311	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
1da177e4	312	int ret;
b8742700	313	struct or51132_state* state = fe->demodulator_priv;
1da177e4	314	const struct firmware *fw;
87184554 TP	315	const char *fwname;
	316	int clock_mode;
	317
	318	/* Upload new firmware only if we need a different one */
	319	if (modulation_fw_class(state->current_modulation) !=
d8f7cc28 MCC	320	modulation_fw_class(p->modulation)) {
d8f7cc28 MCC	321	switch (modulation_fw_class(p->modulation)) {
87184554	322	case MOD_FWCLASS_VSB:
1da177e4	323	dprintk("set_parameters VSB MODE\n");
87184554 TP	324	fwname = OR51132_VSB_FIRMWARE;
87184554 TP	325
1da177e4	326	/* Set non-punctured clock for VSB */
87184554	327	clock_mode = 0;
1da177e4	328	break;
87184554	329	case MOD_FWCLASS_QAM:
1da177e4	330	dprintk("set_parameters QAM MODE\n");
87184554 TP	331	fwname = OR51132_QAM_FIRMWARE;
87184554 TP	332
1da177e4	333	/* Set punctured clock for QAM */
87184554	334	clock_mode = 1;
1da177e4 LT	335	break;
1da177e4 LT	336	default:
87184554	337	printk("or51132: Modulation type(%d) UNSUPPORTED\n",
d8f7cc28	338	p->modulation);
1da177e4	339	return -1;
87184554 TP	340	}
	341	printk("or51132: Waiting for firmware upload(%s)...\n",
	342	fwname);
e9785250	343	ret = request_firmware(&fw, fwname, state->i2c->dev.parent);
87184554 TP	344	if (ret) {
	345	printk(KERN_WARNING "or51132: No firmware up"
	346	"loaded(timeout or file not found?)\n");
	347	return ret;
	348	}
1da177e4 LT	349	ret = or51132_load_firmware(fe, fw);
	350	release_firmware(fw);
	351	if (ret) {
	352	printk(KERN_WARNING "or51132: Writing firmware to "
	353	"device failed!\n");
	354	return ret;
	355	}
	356	printk("or51132: Firmware upload complete.\n");
87184554 TP	357	state->config->set_ts_params(fe, clock_mode);
	358	}
	359	/* Change only if we are actually changing the modulation */
d8f7cc28 MCC	360	if (state->current_modulation != p->modulation) {
d8f7cc28 MCC	361	state->current_modulation = p->modulation;
1da177e4 LT	362	or51132_setmode(fe);
	363	}
	364
dea74869	365	if (fe->ops.tuner_ops.set_params) {
14d24d14	366	fe->ops.tuner_ops.set_params(fe);
dea74869	367	if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
44d92aa7	368	}
80e27e20 MM	369
	370	/* Set to current mode */
	371	or51132_setmode(fe);
	372
	373	/* Update current frequency */
d8f7cc28	374	state->current_frequency = p->frequency;
1da177e4 LT	375	return 0;
	376	}
	377
7e3e68bc MCC	378	static int or51132_get_parameters(struct dvb_frontend* fe,
7e3e68bc MCC	379	struct dtv_frontend_properties *p)
0dbbc0a7 TP	380	{
0dbbc0a7 TP	381	struct or51132_state* state = fe->demodulator_priv;
d9e54324 TP	382	int status;
d9e54324 TP	383	int retry = 1;
0dbbc0a7	384
d9e54324	385	start:
0dbbc0a7	386	/* Receiver Status */
d9e54324 TP	387	if ((status = or51132_readreg(state, 0x00)) < 0) {
d9e54324 TP	388	printk(KERN_WARNING "or51132: get_parameters: error reading receiver status\n");
0dbbc0a7 TP	389	return -EREMOTEIO;
0dbbc0a7 TP	390	}
d9e54324	391	switch(status&0xff) {
d8f7cc28 MCC	392	case 0x06:
	393	p->modulation = VSB_8;
	394	break;
	395	case 0x43:
	396	p->modulation = QAM_64;
	397	break;
	398	case 0x45:
	399	p->modulation = QAM_256;
	400	break;
	401	default:
	402	if (retry--)
	403	goto start;
	404	printk(KERN_WARNING "or51132: unknown status 0x%02x\n",
	405	status&0xff);
	406	return -EREMOTEIO;
0dbbc0a7 TP	407	}
	408
	409	/* FIXME: Read frequency from frontend, take AFC into account */
d8f7cc28	410	p->frequency = state->current_frequency;
0dbbc0a7 TP	411
0dbbc0a7 TP	412	/* FIXME: How to read inversion setting? Receiver 6 register? */
d8f7cc28	413	p->inversion = INVERSION_AUTO;
0dbbc0a7 TP	414
	415	return 0;
	416	}
	417
0df289a2	418	static int or51132_read_status(struct dvb_frontend fe, enum fe_status status)
1da177e4	419	{
b8742700	420	struct or51132_state* state = fe->demodulator_priv;
d9e54324	421	int reg;
1da177e4 LT	422
1da177e4 LT	423	/* Receiver Status */
d9e54324 TP	424	if ((reg = or51132_readreg(state, 0x00)) < 0) {
	425	printk(KERN_WARNING "or51132: read_status: error reading receiver status: %d\n", reg);
	426	*status = 0;
	427	return -EREMOTEIO;
1da177e4	428	}
271ddbf7	429	dprintk("%s: read_status %04x\n", __func__, reg);
d9e54324 TP	430
	431	if (reg & 0x0100) /* Receiver Lock */
	432	*status = FE_HAS_SIGNAL\|FE_HAS_CARRIER\|FE_HAS_VITERBI\|
	433	FE_HAS_SYNC\|FE_HAS_LOCK;
	434	else
	435	*status = 0;
1da177e4 LT	436	return 0;
	437	}
	438
b2fb7f55	439	/* Calculate SNR estimation (scaled by 2^24)
1da177e4	440
b2fb7f55	441	8-VSB SNR and QAM equations from Oren datasheets
1da177e4	442
b2fb7f55 RS	443	For 8-VSB:
	444	SNR[dB] = 10 * log10(897152044.8282 / MSE^2 ) - K
	445
	446	Where K = 0 if NTSC rejection filter is OFF; and
	447	K = 3 if NTSC rejection filter is ON
	448
	449	For QAM64:
	450	SNR[dB] = 10 * log10(897152044.8282 / MSE^2 )
1da177e4	451
b2fb7f55 RS	452	For QAM256:
b2fb7f55 RS	453	SNR[dB] = 10 * log10(907832426.314266 / MSE^2 )
1da177e4	454
b2fb7f55 RS	455	We re-write the snr equation as:
	456	SNR * 2^24 = 10(c - 2intlog10(MSE))
	457	Where for QAM256, c = log10(907832426.314266) * 2^24
	458	and for 8-VSB and QAM64, c = log10(897152044.8282) * 2^24 */
1da177e4	459
b2fb7f55 RS	460	static u32 calculate_snr(u32 mse, u32 c)
	461	{
	462	if (mse == 0) /* No signal */
	463	return 0;
	464
	465	mse = 2*intlog10(mse);
	466	if (mse > c) {
	467	/* Negative SNR, which is possible, but realisticly the
	468	demod will lose lock before the signal gets this bad. The
	469	API only allows for unsigned values, so just return 0 */
	470	return 0;
	471	}
	472	return 10*(c - mse);
1da177e4 LT	473	}
1da177e4 LT	474
b2fb7f55	475	static int or51132_read_snr(struct dvb_frontend* fe, u16* snr)
1da177e4	476	{
b8742700	477	struct or51132_state* state = fe->demodulator_priv;
d9e54324 TP	478	int noise, reg;
	479	u32 c, usK = 0;
	480	int retry = 1;
	481
	482	start:
	483	/* SNR after Equalizer */
	484	noise = or51132_readreg(state, 0x02);
	485	if (noise < 0) {
	486	printk(KERN_WARNING "or51132: read_snr: error reading equalizer\n");
b2fb7f55	487	return -EREMOTEIO;
1da177e4	488	}
d9e54324	489	dprintk("read_snr noise (%d)\n", noise);
1da177e4	490
b2fb7f55 RS	491	/* Read status, contains modulation type for QAM_AUTO and
b2fb7f55 RS	492	NTSC filter for VSB */
d9e54324 TP	493	reg = or51132_readreg(state, 0x00);
	494	if (reg < 0) {
	495	printk(KERN_WARNING "or51132: read_snr: error reading receiver status\n");
b2fb7f55	496	return -EREMOTEIO;
1da177e4	497	}
1da177e4	498
d9e54324	499	switch (reg&0xff) {
b2fb7f55	500	case 0x06:
d9e54324	501	if (reg & 0x1000) usK = 3 << 24;
b2fb7f55 RS	502	/* Fall through to QAM64 case */
	503	case 0x43:
	504	c = 150204167;
	505	break;
	506	case 0x45:
	507	c = 150290396;
	508	break;
	509	default:
d9e54324 TP	510	printk(KERN_WARNING "or51132: unknown status 0x%02x\n", reg&0xff);
d9e54324 TP	511	if (retry--) goto start;
b2fb7f55 RS	512	return -EREMOTEIO;
b2fb7f55 RS	513	}
271ddbf7	514	dprintk("%s: modulation %02x, NTSC rej O%s\n", __func__,
d9e54324	515	reg&0xff, reg&0x1000?"n":"ff");
b2fb7f55 RS	516
	517	/* Calculate SNR using noise, c, and NTSC rejection correction */
	518	state->snr = calculate_snr(noise, c) - usK;
	519	*snr = (state->snr) >> 16;
	520
271ddbf7	521	dprintk("%s: noise = 0x%08x, snr = %d.%02d dB\n", __func__, noise,
b2fb7f55	522	state->snr >> 24, (((state->snr>>8) & 0xffff) * 100) >> 16);
1da177e4 LT	523
	524	return 0;
	525	}
	526
b2fb7f55	527	static int or51132_read_signal_strength(struct dvb_frontend* fe, u16* strength)
1da177e4	528	{
b2fb7f55 RS	529	/* Calculate Strength from SNR up to 35dB */
	530	/* Even though the SNR can go higher than 35dB, there is some comfort */
	531	/* factor in having a range of strong signals that can show at 100% */
	532	struct or51132_state* state = (struct or51132_state*) fe->demodulator_priv;
	533	u16 snr;
	534	int ret;
1da177e4	535
b2fb7f55 RS	536	ret = fe->ops.read_snr(fe, &snr);
	537	if (ret != 0)
	538	return ret;
	539	/* Rather than use the 8.8 value snr, use state->snr which is 8.24 */
	540	/* scale the range 0 - 352^24 into 0 - 65535 /
	541	if (state->snr >= 8960 * 0x10000)
	542	*strength = 0xffff;
	543	else
	544	*strength = state->snr / 8960;
1da177e4 LT	545
	546	return 0;
	547	}
	548
	549	static int or51132_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fe_tune_settings)
	550	{
	551	fe_tune_settings->min_delay_ms = 500;
	552	fe_tune_settings->step_size = 0;
	553	fe_tune_settings->max_drift = 0;
	554
	555	return 0;
	556	}
	557
	558	static void or51132_release(struct dvb_frontend* fe)
	559	{
b8742700	560	struct or51132_state* state = fe->demodulator_priv;
1da177e4 LT	561	kfree(state);
	562	}
	563
	564	static struct dvb_frontend_ops or51132_ops;
	565
	566	struct dvb_frontend* or51132_attach(const struct or51132_config* config,
	567	struct i2c_adapter* i2c)
	568	{
	569	struct or51132_state* state = NULL;
	570
	571	/* Allocate memory for the internal state */
084e24ac	572	state = kzalloc(sizeof(struct or51132_state), GFP_KERNEL);
1da177e4	573	if (state == NULL)
3473e342	574	return NULL;
1da177e4 LT	575
	576	/* Setup the state */
	577	state->config = config;
	578	state->i2c = i2c;
1da177e4 LT	579	state->current_frequency = -1;
	580	state->current_modulation = -1;
	581
	582	/* Create dvb_frontend */
dea74869	583	memcpy(&state->frontend.ops, &or51132_ops, sizeof(struct dvb_frontend_ops));
1da177e4 LT	584	state->frontend.demodulator_priv = state;
1da177e4 LT	585	return &state->frontend;
1da177e4 LT	586	}
	587
	588	static struct dvb_frontend_ops or51132_ops = {
d8f7cc28	589	.delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },
1da177e4 LT	590	.info = {
1da177e4 LT	591	.name = "Oren OR51132 VSB/QAM Frontend",
1da177e4 LT	592	.frequency_min = 44000000,
	593	.frequency_max = 958000000,
	594	.frequency_stepsize = 166666,
	595	.caps = FE_CAN_FEC_1_2 \| FE_CAN_FEC_2_3 \| FE_CAN_FEC_3_4 \|
	596	FE_CAN_FEC_5_6 \| FE_CAN_FEC_7_8 \| FE_CAN_FEC_AUTO \|
	597	FE_CAN_QAM_64 \| FE_CAN_QAM_256 \| FE_CAN_QAM_AUTO \|
	598	FE_CAN_8VSB
	599	},
	600
	601	.release = or51132_release,
	602
	603	.init = or51132_init,
	604	.sleep = or51132_sleep,
	605
d8f7cc28 MCC	606	.set_frontend = or51132_set_parameters,
d8f7cc28 MCC	607	.get_frontend = or51132_get_parameters,
1da177e4 LT	608	.get_tune_settings = or51132_get_tune_settings,
	609
	610	.read_status = or51132_read_status,
	611	.read_ber = or51132_read_ber,
	612	.read_signal_strength = or51132_read_signal_strength,
	613	.read_snr = or51132_read_snr,
	614	.read_ucblocks = or51132_read_ucblocks,
	615	};
	616
	617	module_param(debug, int, 0644);
	618	MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
	619
	620	MODULE_DESCRIPTION("OR51132 ATSC [pcHDTV HD-3000] (8VSB & ITU J83 AnnexB FEC QAM64/256) Demodulator Driver");
	621	MODULE_AUTHOR("Kirk Lapray");
d9e54324	622	MODULE_AUTHOR("Trent Piepho");
1da177e4 LT	623	MODULE_LICENSE("GPL");
	624
	625	EXPORT_SYMBOL(or51132_attach);