From b6aef071bdef0cd9f69113bb3575aa45fafdbbbf Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Wed, 27 Jul 2005 11:45:54 -0700 Subject: [PATCH] [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 Signed-off-by: Michael Krufky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/dvb/frontends/lgdt3302.c | 68 ++++++++++++-------------- drivers/media/dvb/frontends/lgdt3302.h | 7 ++- drivers/media/video/cx88/cx88-dvb.c | 34 ++++++++----- 3 files changed, 55 insertions(+), 54 deletions(-) diff --git a/drivers/media/dvb/frontends/lgdt3302.c b/drivers/media/dvb/frontends/lgdt3302.c index c85a2a99df..136563606f 100644 --- a/drivers/media/dvb/frontends/lgdt3302.c +++ b/drivers/media/dvb/frontends/lgdt3302.c @@ -74,11 +74,14 @@ static int i2c_writebytes (struct lgdt3302_state* state, u8 *buf, /* data bytes to send */ int len /* number of bytes to send */ ) { - if (addr == state->config->pll_address) { - struct i2c_msg msg = - { .addr = addr, .flags = 0, .buf = buf, .len = len }; - int err; + u8 tmp[] = { buf[0], buf[1] }; + struct i2c_msg msg = + { .addr = addr, .flags = 0, .buf = tmp, .len = 2 }; + int err; + int i; + for (i=1; ii2c, &msg, 1)) != 1) { printk(KERN_WARNING "lgdt3302: %s error (addr %02x <- %02x, err == %i)\n", __FUNCTION__, addr, buf[0], err); if (err < 0) @@ -86,27 +89,11 @@ static int i2c_writebytes (struct lgdt3302_state* state, else return -EREMOTEIO; } - } else { - u8 tmp[] = { buf[0], buf[1] }; - struct i2c_msg msg = - { .addr = addr, .flags = 0, .buf = tmp, .len = 2 }; - int err; - int i; - - for (i=1; ii2c, &msg, 1)) != 1) { - printk(KERN_WARNING "lgdt3302: %s error (addr %02x <- %02x, err == %i)\n", __FUNCTION__, addr, buf[0], err); - if (err < 0) - return err; - else - return -EREMOTEIO; - } - tmp[0]++; - } + tmp[0]++; } return 0; } + static int i2c_readbytes (struct lgdt3302_state* state, u8 addr, /* demod_address or pll_address */ u8 *buf, /* holds data bytes read */ @@ -207,7 +194,6 @@ static int lgdt3302_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) static int lgdt3302_set_parameters(struct dvb_frontend* fe, struct dvb_frontend_parameters *param) { - u8 buf[4]; struct lgdt3302_state* state = (struct lgdt3302_state*) fe->demodulator_priv; @@ -290,16 +276,30 @@ static int lgdt3302_set_parameters(struct dvb_frontend* fe, /* Change only if we are actually changing the channel */ if (state->current_frequency != param->frequency) { - dvb_pll_configure(state->config->pll_desc, buf, - param->frequency, 0); - dprintk("%s: tuner bytes: 0x%02x 0x%02x " - "0x%02x 0x%02x\n", __FUNCTION__, buf[0],buf[1],buf[2],buf[3]); - i2c_writebytes(state, state->config->pll_address ,buf, 4); + u8 buf[5]; - /* Check the status of the tuner pll */ - i2c_readbytes(state, state->config->pll_address, buf, 1); - dprintk("%s: tuner status byte = 0x%02x\n", __FUNCTION__, buf[0]); + /* This must be done before the initialized msg is declared */ + state->config->pll_set(fe, param, buf); + + struct i2c_msg msg = + { .addr = buf[0], .flags = 0, .buf = &buf[1], .len = 4 }; + int err; + dprintk("%s: tuner at 0x%02x bytes: 0x%02x 0x%02x " + "0x%02x 0x%02x\n", __FUNCTION__, + buf[0],buf[1],buf[2],buf[3],buf[4]); + if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) { + printk(KERN_WARNING "lgdt3302: %s error (addr %02x <- %02x, err = %i)\n", __FUNCTION__, buf[0], buf[1], err); + if (err < 0) + return err; + else + return -EREMOTEIO; + } +#if 0 + /* Check the status of the tuner pll */ + i2c_readbytes(state, buf[0], &buf[1], 1); + dprintk("%s: tuner status byte = 0x%02x\n", __FUNCTION__, buf[1]); +#endif /* Update current frequency */ state->current_frequency = param->frequency; } @@ -322,12 +322,6 @@ static int lgdt3302_read_status(struct dvb_frontend* fe, fe_status_t* status) *status = 0; /* Reset status result */ - /* Check the status of the tuner pll */ - i2c_readbytes(state, state->config->pll_address, buf, 1); - dprintk("%s: tuner status byte = 0x%02x\n", __FUNCTION__, buf[0]); - if ((buf[0] & 0xc0) != 0x40) - return 0; /* Tuner PLL not locked or not powered on */ - /* * You must set the Mask bits to 1 in the IRQ_MASK in order * to see that status bit in the IRQ_STATUS register. diff --git a/drivers/media/dvb/frontends/lgdt3302.h b/drivers/media/dvb/frontends/lgdt3302.h index 81587a4003..327c47e598 100644 --- a/drivers/media/dvb/frontends/lgdt3302.h +++ b/drivers/media/dvb/frontends/lgdt3302.h @@ -1,6 +1,4 @@ /* - * $Id: lgdt3302.h,v 1.2 2005/06/28 23:50:48 mkrufky Exp $ - * * Support for LGDT3302 (DViCO FustionHDTV 3 Gold) - VSB/QAM * * Copyright (C) 2005 Wilson Michaels @@ -30,8 +28,9 @@ struct lgdt3302_config { /* The demodulator's i2c address */ u8 demod_address; - u8 pll_address; - struct dvb_pll_desc *pll_desc; + + /* PLL interface */ + int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params, u8* pll_address); /* Need to set device param for start_dma */ int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured); diff --git a/drivers/media/video/cx88/cx88-dvb.c b/drivers/media/video/cx88/cx88-dvb.c index 6ad1458ab6..3a8551a02d 100644 --- a/drivers/media/video/cx88/cx88-dvb.c +++ b/drivers/media/video/cx88/cx88-dvb.c @@ -1,5 +1,5 @@ /* - * $Id: cx88-dvb.c,v 1.42 2005/07/12 15:44:55 mkrufky Exp $ + * $Id: cx88-dvb.c,v 1.47 2005/07/20 05:20:37 mkrufky Exp $ * * device driver for Conexant 2388x based TV cards * MPEG Transport Stream (DVB) routines @@ -211,6 +211,18 @@ static struct or51132_config pchdtv_hd3000 = { #endif #if CONFIG_DVB_LGDT3302 +static int lgdt3302_pll_set(struct dvb_frontend* fe, + struct dvb_frontend_parameters* params, + u8* pllbuf) +{ + struct cx8802_dev *dev= fe->dvb->priv; + + pllbuf[0] = dev->core->pll_addr; + dvb_pll_configure(dev->core->pll_desc, &pllbuf[1], + params->frequency, 0); + return 0; +} + static int lgdt3302_set_ts_param(struct dvb_frontend* fe, int is_punctured) { struct cx8802_dev *dev= fe->dvb->priv; @@ -221,17 +233,9 @@ static int lgdt3302_set_ts_param(struct dvb_frontend* fe, int is_punctured) return 0; } -static struct lgdt3302_config fusionhdtv_3_gold_q = { - .demod_address = 0x0e, - .pll_address = 0x61, - .pll_desc = &dvb_pll_microtune_4042, - .set_ts_params = lgdt3302_set_ts_param, -}; - -static struct lgdt3302_config fusionhdtv_3_gold_t = { +static struct lgdt3302_config fusionhdtv_3_gold = { .demod_address = 0x0e, - .pll_address = 0x61, - .pll_desc = &dvb_pll_thomson_dtt7611, + .pll_set = lgdt3302_pll_set, .set_ts_params = lgdt3302_set_ts_param, }; #endif @@ -294,7 +298,9 @@ static int dvb_register(struct cx8802_dev *dev) mdelay(100); cx_set(MO_GP0_IO, 9); // ANT connector too FIXME mdelay(200); - dev->dvb.frontend = lgdt3302_attach(&fusionhdtv_3_gold_q, + dev->core->pll_addr = 0x61; + dev->core->pll_desc = &dvb_pll_microtune_4042; + dev->dvb.frontend = lgdt3302_attach(&fusionhdtv_3_gold, &dev->core->i2c_adap); } break; @@ -308,7 +314,9 @@ static int dvb_register(struct cx8802_dev *dev) mdelay(100); cx_set(MO_GP0_IO, 9); /* ANT connector too FIXME */ mdelay(200); - dev->dvb.frontend = lgdt3302_attach(&fusionhdtv_3_gold_t, + dev->core->pll_addr = 0x61; + dev->core->pll_desc = &dvb_pll_thomson_dtt7611; + dev->dvb.frontend = lgdt3302_attach(&fusionhdtv_3_gold, &dev->core->i2c_adap); } break; -- 2.39.5