/*
* Support for NXT2002 and NXT2004 - VSB/QAM
*
- * Copyright (C) 2005 Kirk Lapray (kirk.lapray@gmail.com)
+ * Copyright (C) 2005 Kirk Lapray <kirk.lapray@gmail.com>
+ * Copyright (C) 2006 Michael Krufky <mkrufky@m1k.net>
* based on nxt2002 by Taylor Jacob <rtjacob@earthlink.net>
- * and nxt2004 by Jean-Francois Thibert (jeanfrancois@sagetv.com)
+ * and nxt2004 by Jean-Francois Thibert <jeanfrancois@sagetv.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
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
-#include <linux/moduleparam.h>
#include <linux/slab.h>
#include <linux/string.h>
#include "dvb_frontend.h"
-#include "dvb-pll.h"
#include "nxt200x.h"
struct nxt200x_state {
struct i2c_adapter* i2c;
- struct dvb_frontend_ops ops;
const struct nxt200x_config* config;
struct dvb_frontend frontend;
if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) {
printk (KERN_WARNING "nxt200x: %s: i2c write error (addr 0x%02x, err == %i)\n",
- __FUNCTION__, addr, err);
+ __func__, addr, err);
return -EREMOTEIO;
}
return 0;
}
-static u8 i2c_readbytes (struct nxt200x_state* state, u8 addr, u8* buf, u8 len)
+static int i2c_readbytes(struct nxt200x_state *state, u8 addr, u8 *buf, u8 len)
{
int err;
struct i2c_msg msg = { .addr = addr, .flags = I2C_M_RD, .buf = buf, .len = len };
if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) {
printk (KERN_WARNING "nxt200x: %s: i2c read error (addr 0x%02x, err == %i)\n",
- __FUNCTION__, addr, err);
+ __func__, addr, err);
return -EREMOTEIO;
}
return 0;
}
-static int nxt200x_writebytes (struct nxt200x_state* state, u8 reg, u8 *buf, u8 len)
+static int nxt200x_writebytes (struct nxt200x_state* state, u8 reg,
+ const u8 *buf, u8 len)
{
u8 buf2 [len+1];
int err;
if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) {
printk (KERN_WARNING "nxt200x: %s: i2c write error (addr 0x%02x, err == %i)\n",
- __FUNCTION__, state->config->demod_address, err);
+ __func__, state->config->demod_address, err);
return -EREMOTEIO;
}
return 0;
}
-static u8 nxt200x_readbytes (struct nxt200x_state* state, u8 reg, u8* buf, u8 len)
+static int nxt200x_readbytes(struct nxt200x_state *state, u8 reg, u8 *buf, u8 len)
{
u8 reg2 [] = { reg };
if ((err = i2c_transfer (state->i2c, msg, 2)) != 2) {
printk (KERN_WARNING "nxt200x: %s: i2c read error (addr 0x%02x, err == %i)\n",
- __FUNCTION__, state->config->demod_address, err);
+ __func__, state->config->demod_address, err);
return -EREMOTEIO;
}
return 0;
static int nxt200x_writereg_multibyte (struct nxt200x_state* state, u8 reg, u8* data, u8 len)
{
u8 attr, len2, buf;
- dprintk("%s\n", __FUNCTION__);
+ dprintk("%s\n", __func__);
/* set mutli register register */
nxt200x_writebytes(state, 0x35, ®, 1);
{
int i;
u8 buf, len2, attr;
- dprintk("%s\n", __FUNCTION__);
+ dprintk("%s\n", __func__);
/* set mutli register register */
nxt200x_writebytes(state, 0x35, ®, 1);
static void nxt200x_microcontroller_stop (struct nxt200x_state* state)
{
u8 buf, stopval, counter = 0;
- dprintk("%s\n", __FUNCTION__);
+ dprintk("%s\n", __func__);
/* set correct stop value */
switch (state->demod_chip) {
static void nxt200x_microcontroller_start (struct nxt200x_state* state)
{
u8 buf;
- dprintk("%s\n", __FUNCTION__);
+ dprintk("%s\n", __func__);
buf = 0x00;
nxt200x_writebytes(state, 0x22, &buf, 1);
{
u8 buf[9];
u8 counter = 0;
- dprintk("%s\n", __FUNCTION__);
+ dprintk("%s\n", __func__);
buf[0] = 0x00;
nxt200x_writebytes(state, 0x2b, buf, 1);
{
u8 buf, count = 0;
- dprintk("%s\n", __FUNCTION__);
+ dprintk("%s\n", __func__);
- dprintk("Tuner Bytes: %02X %02X %02X %02X\n", data[0], data[1], data[2], data[3]);
+ dprintk("Tuner Bytes: %02X %02X %02X %02X\n", data[1], data[2], data[3], data[4]);
/* if NXT2004, write directly to tuner. if NXT2002, write through NXT chip.
* direct write is required for Philips TUV1236D and ALPS TDHU2 */
switch (state->demod_chip) {
case NXT2004:
- if (i2c_writebytes(state, state->config->pll_address, data, 4))
- printk(KERN_WARNING "nxt200x: error writing to tuner\n");
+ if (i2c_writebytes(state, data[0], data+1, 4))
+ printk(KERN_WARNING "nxt200x: error writing to tuner\n");
/* wait until we have a lock */
while (count < 20) {
- i2c_readbytes(state, state->config->pll_address, &buf, 1);
+ i2c_readbytes(state, data[0], &buf, 1);
if (buf & 0x40)
return 0;
msleep(100);
nxt200x_writebytes(state, 0x34, &buf, 1);
/* write actual tuner bytes */
- nxt200x_writebytes(state, 0x36, data, 4);
+ nxt200x_writebytes(state, 0x36, data+1, 4);
/* set tuner i2c address */
- buf = state->config->pll_address;
+ buf = data[0] << 1;
nxt200x_writebytes(state, 0x35, &buf, 1);
/* write UC Opmode to begin transfer */
static void nxt200x_agc_reset(struct nxt200x_state* state)
{
u8 buf;
- dprintk("%s\n", __FUNCTION__);
+ dprintk("%s\n", __func__);
switch (state->demod_chip) {
case NXT2002:
u8 buf[3], written = 0, chunkpos = 0;
u16 rambase, position, crc = 0;
- dprintk("%s\n", __FUNCTION__);
+ dprintk("%s\n", __func__);
dprintk("Firmware is %zu bytes\n", fw->size);
/* Get the RAM base for this nxt2002 */
u8 buf[3];
u16 rambase, position, crc=0;
- dprintk("%s\n", __FUNCTION__);
+ dprintk("%s\n", __func__);
dprintk("Firmware is %zu bytes\n", fw->size);
/* set rambase */
/* calculate firmware CRC */
for (position = 0; position < fw->size; position++) {
- crc = nxt200x_crc(crc, fw->data[position]);
+ crc = nxt200x_crc(crc, fw->data[position]);
}
buf[0] = rambase >> 8;
struct dvb_frontend_parameters *p)
{
struct nxt200x_state* state = fe->demodulator_priv;
- u8 buf[4];
+ u8 buf[5];
/* stop the micro first */
nxt200x_microcontroller_stop(state);
nxt200x_writebytes(state, 0x17, buf, 1);
}
- /* get tuning information */
- dvb_pll_configure(state->config->pll_desc, buf, p->frequency, 0);
-
/* set additional params */
switch (p->u.vsb.modulation) {
case QAM_64:
/* This is just a guess since I am unable to test it */
if (state->config->set_ts_params)
state->config->set_ts_params(fe, 1);
-
- /* set input */
- if (state->config->set_pll_input)
- state->config->set_pll_input(buf, 1);
break;
case VSB_8:
/* Set non-punctured clock for VSB */
if (state->config->set_ts_params)
state->config->set_ts_params(fe, 0);
-
- /* set input */
- if (state->config->set_pll_input)
- state->config->set_pll_input(buf, 0);
break;
default:
return -EINVAL;
break;
}
- /* write frequency information */
- nxt200x_writetuner(state, buf);
+ if (fe->ops.tuner_ops.calc_regs) {
+ /* get tuning information */
+ fe->ops.tuner_ops.calc_regs(fe, p, buf, 5);
+
+ /* write frequency information */
+ nxt200x_writetuner(state, buf);
+ }
/* reset the agc now that tuning has been completed */
nxt200x_agc_reset(state);
/* write sdm1 input */
buf[0] = 0x10;
buf[1] = 0x00;
- nxt200x_writebytes(state, 0x58, buf, 2);
+ switch (state->demod_chip) {
+ case NXT2002:
+ nxt200x_writereg_multibyte(state, 0x58, buf, 2);
+ break;
+ case NXT2004:
+ nxt200x_writebytes(state, 0x58, buf, 2);
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
/* write sdmx input */
switch (p->u.vsb.modulation) {
break;
}
buf[1] = 0x00;
- nxt200x_writebytes(state, 0x5C, buf, 2);
+ switch (state->demod_chip) {
+ case NXT2002:
+ nxt200x_writereg_multibyte(state, 0x5C, buf, 2);
+ break;
+ case NXT2004:
+ nxt200x_writebytes(state, 0x5C, buf, 2);
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
/* write adc power lpf fc */
buf[0] = 0x05;
/* write accumulator2 input */
buf[0] = 0x80;
buf[1] = 0x00;
- nxt200x_writebytes(state, 0x4B, buf, 2);
+ switch (state->demod_chip) {
+ case NXT2002:
+ nxt200x_writereg_multibyte(state, 0x4B, buf, 2);
+ break;
+ case NXT2004:
+ nxt200x_writebytes(state, 0x4B, buf, 2);
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
/* write kg1 */
buf[0] = 0x00;
/* write accumulator2 input */
buf[0] = 0x80;
buf[1] = 0x00;
- nxt200x_writebytes(state, 0x49, buf,2);
- nxt200x_writebytes(state, 0x4B, buf,2);
+ switch (state->demod_chip) {
+ case NXT2002:
+ nxt200x_writereg_multibyte(state, 0x49, buf, 2);
+ nxt200x_writereg_multibyte(state, 0x4B, buf, 2);
+ break;
+ case NXT2004:
+ nxt200x_writebytes(state, 0x49, buf, 2);
+ nxt200x_writebytes(state, 0x4B, buf, 2);
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
/* write agc control reg */
buf[0] = 0x04;
}
ret = nxt2002_load_firmware(fe, fw);
+ release_firmware(fw);
if (ret) {
printk("nxt2002: Writing firmware to device failed\n");
- release_firmware(fw);
return ret;
}
printk("nxt2002: Firmware upload complete\n");
}
ret = nxt2004_load_firmware(fe, fw);
+ release_firmware(fw);
if (ret) {
printk("nxt2004: Writing firmware to device failed\n");
- release_firmware(fw);
return ret;
}
printk("nxt2004: Firmware upload complete\n");
u8 buf [] = {0,0,0,0,0};
/* allocate memory for the internal state */
- state = (struct nxt200x_state*) kmalloc(sizeof(struct nxt200x_state), GFP_KERNEL);
+ state = kzalloc(sizeof(struct nxt200x_state), GFP_KERNEL);
if (state == NULL)
goto error;
- memset(state,0,sizeof(*state));
/* setup the state */
state->config = config;
state->i2c = i2c;
- memcpy(&state->ops, &nxt200x_ops, sizeof(struct dvb_frontend_ops));
state->initialised = 0;
/* read card id */
}
/* create dvb_frontend */
- state->frontend.ops = &state->ops;
+ memcpy(&state->frontend.ops, &nxt200x_ops, sizeof(struct dvb_frontend_ops));
state->frontend.demodulator_priv = state;
return &state->frontend;
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
MODULE_DESCRIPTION("NXT200X (ATSC 8VSB & ITU-T J.83 AnnexB 64/256 QAM) Demodulator Driver");
-MODULE_AUTHOR("Kirk Lapray, Jean-Francois Thibert, and Taylor Jacob");
+MODULE_AUTHOR("Kirk Lapray, Michael Krufky, Jean-Francois Thibert, and Taylor Jacob");
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(nxt200x_attach);