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[PATCH] dvb/v4l: lgdt3302: isolate tuner
Remove the dvb_pll_desc from the frontend and replace with a pll_set-callback to isolate the tuner programming from the frontend. Signed-off-by: Mac Michaels <wmichaels1@earthlink.net> Signed-off-by: Michael Krufky <mkrufky@m1k.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Michael Krufky
Linus Torvalds
parent
7fd0f3acfa
commit
b6aef071bd
@ -74,11 +74,14 @@ static int i2c_writebytes (struct lgdt3302_state* state,
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u8 *buf, /* data bytes to send */
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int len /* number of bytes to send */ )
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{
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if (addr == state->config->pll_address) {
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struct i2c_msg msg =
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{ .addr = addr, .flags = 0, .buf = buf, .len = len };
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int err;
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u8 tmp[] = { buf[0], buf[1] };
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struct i2c_msg msg =
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{ .addr = addr, .flags = 0, .buf = tmp, .len = 2 };
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int err;
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int i;
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for (i=1; i<len; i++) {
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tmp[1] = buf[i];
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if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
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printk(KERN_WARNING "lgdt3302: %s error (addr %02x <- %02x, err == %i)\n", __FUNCTION__, addr, buf[0], err);
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if (err < 0)
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@ -86,27 +89,11 @@ static int i2c_writebytes (struct lgdt3302_state* state,
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else
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return -EREMOTEIO;
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}
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} else {
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u8 tmp[] = { buf[0], buf[1] };
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struct i2c_msg msg =
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{ .addr = addr, .flags = 0, .buf = tmp, .len = 2 };
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int err;
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int i;
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for (i=1; i<len; i++) {
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tmp[1] = buf[i];
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if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
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printk(KERN_WARNING "lgdt3302: %s error (addr %02x <- %02x, err == %i)\n", __FUNCTION__, addr, buf[0], err);
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if (err < 0)
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return err;
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else
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return -EREMOTEIO;
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}
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tmp[0]++;
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}
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tmp[0]++;
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}
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return 0;
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}
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static int i2c_readbytes (struct lgdt3302_state* state,
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u8 addr, /* demod_address or pll_address */
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u8 *buf, /* holds data bytes read */
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@ -207,7 +194,6 @@ static int lgdt3302_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
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static int lgdt3302_set_parameters(struct dvb_frontend* fe,
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struct dvb_frontend_parameters *param)
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{
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u8 buf[4];
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struct lgdt3302_state* state =
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(struct lgdt3302_state*) fe->demodulator_priv;
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@ -290,16 +276,30 @@ static int lgdt3302_set_parameters(struct dvb_frontend* fe,
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/* Change only if we are actually changing the channel */
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if (state->current_frequency != param->frequency) {
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dvb_pll_configure(state->config->pll_desc, buf,
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param->frequency, 0);
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dprintk("%s: tuner bytes: 0x%02x 0x%02x "
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"0x%02x 0x%02x\n", __FUNCTION__, buf[0],buf[1],buf[2],buf[3]);
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i2c_writebytes(state, state->config->pll_address ,buf, 4);
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u8 buf[5];
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/* This must be done before the initialized msg is declared */
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state->config->pll_set(fe, param, buf);
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struct i2c_msg msg =
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{ .addr = buf[0], .flags = 0, .buf = &buf[1], .len = 4 };
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int err;
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dprintk("%s: tuner at 0x%02x bytes: 0x%02x 0x%02x "
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"0x%02x 0x%02x\n", __FUNCTION__,
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buf[0],buf[1],buf[2],buf[3],buf[4]);
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if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
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printk(KERN_WARNING "lgdt3302: %s error (addr %02x <- %02x, err = %i)\n", __FUNCTION__, buf[0], buf[1], err);
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if (err < 0)
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return err;
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else
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return -EREMOTEIO;
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}
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#if 0
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/* Check the status of the tuner pll */
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i2c_readbytes(state, state->config->pll_address, buf, 1);
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dprintk("%s: tuner status byte = 0x%02x\n", __FUNCTION__, buf[0]);
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i2c_readbytes(state, buf[0], &buf[1], 1);
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dprintk("%s: tuner status byte = 0x%02x\n", __FUNCTION__, buf[1]);
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#endif
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/* Update current frequency */
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state->current_frequency = param->frequency;
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}
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@ -322,12 +322,6 @@ static int lgdt3302_read_status(struct dvb_frontend* fe, fe_status_t* status)
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*status = 0; /* Reset status result */
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/* Check the status of the tuner pll */
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i2c_readbytes(state, state->config->pll_address, buf, 1);
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dprintk("%s: tuner status byte = 0x%02x\n", __FUNCTION__, buf[0]);
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if ((buf[0] & 0xc0) != 0x40)
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return 0; /* Tuner PLL not locked or not powered on */
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/*
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* You must set the Mask bits to 1 in the IRQ_MASK in order
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* to see that status bit in the IRQ_STATUS register.
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@ -1,6 +1,4 @@
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/*
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* $Id: lgdt3302.h,v 1.2 2005/06/28 23:50:48 mkrufky Exp $
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*
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* Support for LGDT3302 (DViCO FustionHDTV 3 Gold) - VSB/QAM
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*
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* Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net>
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@ -30,8 +28,9 @@ struct lgdt3302_config
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{
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/* The demodulator's i2c address */
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u8 demod_address;
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u8 pll_address;
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struct dvb_pll_desc *pll_desc;
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/* PLL interface */
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int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u8* pll_address);
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/* Need to set device param for start_dma */
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int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
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@ -1,5 +1,5 @@
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/*
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* $Id: cx88-dvb.c,v 1.42 2005/07/12 15:44:55 mkrufky Exp $
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* $Id: cx88-dvb.c,v 1.47 2005/07/20 05:20:37 mkrufky Exp $
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*
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* device driver for Conexant 2388x based TV cards
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* MPEG Transport Stream (DVB) routines
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@ -211,6 +211,18 @@ static struct or51132_config pchdtv_hd3000 = {
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#endif
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#if CONFIG_DVB_LGDT3302
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static int lgdt3302_pll_set(struct dvb_frontend* fe,
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struct dvb_frontend_parameters* params,
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u8* pllbuf)
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{
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struct cx8802_dev *dev= fe->dvb->priv;
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pllbuf[0] = dev->core->pll_addr;
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dvb_pll_configure(dev->core->pll_desc, &pllbuf[1],
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params->frequency, 0);
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return 0;
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}
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static int lgdt3302_set_ts_param(struct dvb_frontend* fe, int is_punctured)
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{
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struct cx8802_dev *dev= fe->dvb->priv;
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@ -221,17 +233,9 @@ static int lgdt3302_set_ts_param(struct dvb_frontend* fe, int is_punctured)
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return 0;
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}
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static struct lgdt3302_config fusionhdtv_3_gold_q = {
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static struct lgdt3302_config fusionhdtv_3_gold = {
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.demod_address = 0x0e,
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.pll_address = 0x61,
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.pll_desc = &dvb_pll_microtune_4042,
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.set_ts_params = lgdt3302_set_ts_param,
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};
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static struct lgdt3302_config fusionhdtv_3_gold_t = {
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.demod_address = 0x0e,
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.pll_address = 0x61,
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.pll_desc = &dvb_pll_thomson_dtt7611,
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.pll_set = lgdt3302_pll_set,
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.set_ts_params = lgdt3302_set_ts_param,
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};
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#endif
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@ -294,7 +298,9 @@ static int dvb_register(struct cx8802_dev *dev)
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mdelay(100);
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cx_set(MO_GP0_IO, 9); // ANT connector too FIXME
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mdelay(200);
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dev->dvb.frontend = lgdt3302_attach(&fusionhdtv_3_gold_q,
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dev->core->pll_addr = 0x61;
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dev->core->pll_desc = &dvb_pll_microtune_4042;
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dev->dvb.frontend = lgdt3302_attach(&fusionhdtv_3_gold,
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&dev->core->i2c_adap);
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}
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break;
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@ -308,7 +314,9 @@ static int dvb_register(struct cx8802_dev *dev)
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mdelay(100);
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cx_set(MO_GP0_IO, 9); /* ANT connector too FIXME */
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mdelay(200);
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dev->dvb.frontend = lgdt3302_attach(&fusionhdtv_3_gold_t,
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dev->core->pll_addr = 0x61;
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dev->core->pll_desc = &dvb_pll_thomson_dtt7611;
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dev->dvb.frontend = lgdt3302_attach(&fusionhdtv_3_gold,
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&dev->core->i2c_adap);
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}
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break;
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