driver for LSI L64781 COFDM demodulator
Copyright (C) 2001 Holger Waechtler for Convergence Integrated Media GmbH
- Marko Kohtala <marko.kohtala@luukku.com>
+ Marko Kohtala <marko.kohtala@luukku.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/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/moduleparam.h>
#include <linux/string.h>
#include <linux/slab.h>
#include "dvb_frontend.h"
struct l64781_state {
struct i2c_adapter* i2c;
- struct dvb_frontend_ops ops;
const struct l64781_config* config;
struct dvb_frontend frontend;
/* private demodulator data */
- int first:1;
+ unsigned int first:1;
};
#define dprintk(args...) \
if ((ret = i2c_transfer(state->i2c, &msg, 1)) != 1)
dprintk ("%s: write_reg error (reg == %02x) = %02x!\n",
- __FUNCTION__, reg, ret);
+ __func__, reg, ret);
return (ret != 1) ? -1 : 0;
}
u8 val0x06;
int bw = p->bandwidth - BANDWIDTH_8_MHZ;
- state->config->pll_set(fe, param);
+ if (fe->ops.tuner_ops.set_params) {
+ fe->ops.tuner_ops.set_params(fe, param);
+ if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
+ }
if (param->inversion != INVERSION_ON &&
param->inversion != INVERSION_OFF)
{
struct l64781_state* state = fe->demodulator_priv;
- reset_and_configure (state);
+ reset_and_configure (state);
/* Power up */
l64781_writereg (state, 0x3e, 0xa5);
l64781_writereg (state, 0x0d, 0x8c);
/* With ppm=8000, it seems the DTR_SENSITIVITY will result in
- value of 2 with all possible bandwidths and guard
- intervals, which is the initial value anyway. */
- /*l64781_writereg (state, 0x19, 0x92);*/
+ value of 2 with all possible bandwidths and guard
+ intervals, which is the initial value anyway. */
+ /*l64781_writereg (state, 0x19, 0x92);*/
/* Everything is two's complement, soft bit and CSI_OUT too */
l64781_writereg (state, 0x1e, 0x09);
- if (state->config->pll_init) state->config->pll_init(fe);
-
/* delay a bit after first init attempt */
if (state->first) {
state->first = 0;
static int l64781_get_tune_settings(struct dvb_frontend* fe,
struct dvb_frontend_tune_settings* fesettings)
{
- fesettings->min_delay_ms = 4000;
- fesettings->step_size = 0;
- fesettings->max_drift = 0;
- return 0;
+ fesettings->min_delay_ms = 4000;
+ fesettings->step_size = 0;
+ fesettings->max_drift = 0;
+ return 0;
}
static void l64781_release(struct dvb_frontend* fe)
{ .addr = config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
/* allocate memory for the internal state */
- state = kmalloc(sizeof(struct l64781_state), GFP_KERNEL);
+ state = kzalloc(sizeof(struct l64781_state), GFP_KERNEL);
if (state == NULL) goto error;
/* setup the state */
state->config = config;
state->i2c = i2c;
- memcpy(&state->ops, &l64781_ops, sizeof(struct dvb_frontend_ops));
state->first = 1;
/**
/* The chip always responds to reads */
if (i2c_transfer(state->i2c, msg, 2) != 2) {
- dprintk("No response to read on I2C bus\n");
+ dprintk("No response to read on I2C bus\n");
goto error;
}
/* Reading the POWER_DOWN register always returns 0 */
if (reg0x3e != 0) {
- dprintk("Device doesn't look like L64781\n");
+ dprintk("Device doesn't look like L64781\n");
goto error;
}
/* Responds to all reads with 0 */
if (l64781_readreg(state, 0x1a) != 0) {
- dprintk("Read 1 returned unexpcted value\n");
+ dprintk("Read 1 returned unexpcted value\n");
goto error;
}
/* Responds with register default value */
if (l64781_readreg(state, 0x1a) != 0xa1) {
- dprintk("Read 2 returned unexpcted value\n");
+ dprintk("Read 2 returned unexpcted value\n");
goto error;
}
/* create dvb_frontend */
- state->frontend.ops = &state->ops;
+ memcpy(&state->frontend.ops, &l64781_ops, sizeof(struct dvb_frontend_ops));
state->frontend.demodulator_priv = state;
return &state->frontend;