From 7ab10bf72add23f0badf98ead92f58e34e14d35a Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Mon, 27 Aug 2007 21:23:40 -0300 Subject: V4L/DVB (6131): tea5761: convert from tuner sub-driver into dvb_frontend module Signed-off-by: Michael Krufky Acked-by: Hans Verkuil Acked-by: Mike Isely Acked-by: Steven Toth Acked-by: Patrick Boettcher Acked-by: Jarod Wilson Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/tea5761.c | 132 ++++++++++++++++++++++++------------- drivers/media/video/tea5761.h | 28 ++++++++ drivers/media/video/tuner-core.c | 5 +- drivers/media/video/tuner-driver.h | 3 - 4 files changed, 118 insertions(+), 50 deletions(-) create mode 100644 drivers/media/video/tea5761.h (limited to 'drivers') diff --git a/drivers/media/video/tea5761.c b/drivers/media/video/tea5761.c index 9965ba48cff..8cdaf474ffd 100644 --- a/drivers/media/video/tea5761.c +++ b/drivers/media/video/tea5761.c @@ -11,15 +11,19 @@ #include #include #include -#include "tuner-driver.h" +#include "tuner-i2c.h" +#include "tea5761.h" -#define PREFIX "TEA5761 " +static int debug = 0; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "enable verbose debug messages"); -/* from tuner-core.c */ -extern int tuner_debug; +#define PREFIX "tea5761 " struct tea5761_priv { struct tuner_i2c_props i2c_props; + + u32 frequency; }; /*****************************************************************************/ @@ -118,11 +122,6 @@ struct tea5761_priv { /*****************************************************************************/ -static void set_tv_freq(struct tuner *t, unsigned int freq) -{ - tuner_warn("This tuner doesn't support TV freq.\n"); -} - #define FREQ_OFFSET 0 /* for TEA5767, it is 700 to give the right freq */ static void tea5761_status_dump(unsigned char *buffer) { @@ -137,16 +136,18 @@ static void tea5761_status_dump(unsigned char *buffer) } /* Freq should be specifyed at 62.5 Hz */ -static void set_radio_freq(struct tuner *t, unsigned int frq) +static int set_radio_freq(struct dvb_frontend *fe, + struct analog_parameters *params) { - struct tea5761_priv *priv = t->priv; + struct tea5761_priv *priv = fe->tuner_priv; + unsigned int frq = params->frequency; unsigned char buffer[7] = {0, 0, 0, 0, 0, 0, 0 }; unsigned div; int rc; - tuner_dbg (PREFIX "radio freq counter %d\n", frq); + tuner_dbg("radio freq counter %d\n", frq); - if (t->mode == T_STANDBY) { + if (params->mode == T_STANDBY) { tuner_dbg("TEA5761 set to standby mode\n"); buffer[5] |= TEA5761_TNCTRL_MU; } else { @@ -154,10 +155,9 @@ static void set_radio_freq(struct tuner *t, unsigned int frq) } - if (t->audmode == V4L2_TUNER_MODE_MONO) { + if (params->audmode == V4L2_TUNER_MODE_MONO) { tuner_dbg("TEA5761 set to mono\n"); buffer[5] |= TEA5761_TNCTRL_MST; -; } else { tuner_dbg("TEA5761 set to stereo\n"); } @@ -166,18 +166,22 @@ static void set_radio_freq(struct tuner *t, unsigned int frq) buffer[1] = (div >> 8) & 0x3f; buffer[2] = div & 0xff; - if (tuner_debug) + if (debug) tea5761_status_dump(buffer); if (7 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 7))) tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); + + priv->frequency = frq * 125 / 2; + + return 0; } -static int tea5761_signal(struct tuner *t) +static int tea5761_signal(struct dvb_frontend *fe) { unsigned char buffer[16]; int rc; - struct tea5761_priv *priv = t->priv; + struct tea5761_priv *priv = fe->tuner_priv; memset(buffer, 0, sizeof(buffer)); if (16 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 16))) @@ -186,11 +190,11 @@ static int tea5761_signal(struct tuner *t) return ((buffer[9] & TEA5761_TUNCHECK_LEV_MASK) << (13 - 4)); } -static int tea5761_stereo(struct tuner *t) +static int tea5761_stereo(struct dvb_frontend *fe) { unsigned char buffer[16]; int rc; - struct tea5761_priv *priv = t->priv; + struct tea5761_priv *priv = fe->tuner_priv; memset(buffer, 0, sizeof(buffer)); if (16 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 16))) @@ -203,58 +207,96 @@ static int tea5761_stereo(struct tuner *t) return (rc ? V4L2_TUNER_SUB_STEREO : 0); } -int tea5761_autodetection(struct tuner *t) +static int tea5761_get_status(struct dvb_frontend *fe, u32 *status) +{ + struct tea5761_priv *priv = fe->tuner_priv; + int signal = tea5761_signal(fe); + + *status = 0; + + if (signal) + *status = TUNER_STATUS_LOCKED; + if (tea5761_stereo(fe)) + *status |= TUNER_STATUS_STEREO; + + tuner_dbg("tea5761: Signal strength: %d\n", signal); + + return 0; +} + +int tea5761_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr) { unsigned char buffer[16]; int rc; - struct tuner_i2c_props i2c = { .adap = t->i2c.adapter, .addr = t->i2c.addr }; + struct tuner_i2c_props i2c = { .adap = i2c_adap, .addr = i2c_addr }; if (16 != (rc = tuner_i2c_xfer_recv(&i2c, buffer, 16))) { - tuner_warn("it is not a TEA5761. Received %i chars.\n", rc); + printk(KERN_WARNING "it is not a TEA5761. Received %i chars.\n", rc); return EINVAL; } if (!((buffer[13] != 0x2b) || (buffer[14] != 0x57) || (buffer[15] != 0x061))) { - tuner_warn("Manufacturer ID= 0x%02x, Chip ID = %02x%02x. It is not a TEA5761\n",buffer[13],buffer[14],buffer[15]); + printk(KERN_WARNING "Manufacturer ID= 0x%02x, Chip ID = %02x%02x. It is not a TEA5761\n",buffer[13],buffer[14],buffer[15]); return EINVAL; } - tuner_warn("TEA5761 detected.\n"); + printk(KERN_WARNING "TEA5761 detected.\n"); + return 0; +} + +static int tea5761_release(struct dvb_frontend *fe) +{ + kfree(fe->tuner_priv); + fe->tuner_priv = NULL; + return 0; } -static void tea5761_release(struct tuner *t) +static int tea5761_get_frequency(struct dvb_frontend *fe, u32 *frequency) { - kfree(t->priv); - t->priv = NULL; + struct tea5761_priv *priv = fe->tuner_priv; + *frequency = priv->frequency; + return 0; } -static struct tuner_operations tea5761_tuner_ops = { - .set_tv_freq = set_tv_freq, - .set_radio_freq = set_radio_freq, - .has_signal = tea5761_signal, - .is_stereo = tea5761_stereo, - .release = tea5761_release, +static struct dvb_tuner_ops tea5761_tuner_ops = { + .info = { + .name = "tea5761", // Philips TEA5761HN FM Radio + }, + .set_analog_params = set_radio_freq, + .release = tea5761_release, + .get_frequency = tea5761_get_frequency, + .get_status = tea5761_get_status, }; -int tea5761_tuner_init(struct tuner *t) +struct dvb_frontend *tea5761_attach(struct dvb_frontend *fe, + struct i2c_adapter* i2c_adap, + u8 i2c_addr) { struct tea5761_priv *priv = NULL; - if (tea5761_autodetection(t) == EINVAL) - return EINVAL; + if (tea5761_autodetection(i2c_adap, i2c_addr) == EINVAL) + return NULL; priv = kzalloc(sizeof(struct tea5761_priv), GFP_KERNEL); if (priv == NULL) - return -ENOMEM; - t->priv = priv; + return NULL; + fe->tuner_priv = priv; - priv->i2c_props.addr = t->i2c.addr; - priv->i2c_props.adap = t->i2c.adapter; + priv->i2c_props.addr = i2c_addr; + priv->i2c_props.adap = i2c_adap; - tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5761HN FM Radio"); - strlcpy(t->i2c.name, "tea5761", sizeof(t->i2c.name)); + memcpy(&fe->ops.tuner_ops, &tea5761_tuner_ops, + sizeof(struct dvb_tuner_ops)); - memcpy(&t->ops, &tea5761_tuner_ops, sizeof(struct tuner_operations)); + tuner_info("type set to %s\n", "Philips TEA5761HN FM Radio"); - return (0); + return fe; } + + +EXPORT_SYMBOL_GPL(tea5761_attach); +EXPORT_SYMBOL_GPL(tea5761_autodetection); + +MODULE_DESCRIPTION("Philips TEA5761 FM tuner driver"); +MODULE_AUTHOR("Mauro Carvalho Chehab "); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/video/tea5761.h b/drivers/media/video/tea5761.h new file mode 100644 index 00000000000..f287c0291bf --- /dev/null +++ b/drivers/media/video/tea5761.h @@ -0,0 +1,28 @@ +/* + 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. +*/ + +#ifndef __TEA5761_H__ +#define __TEA5761_H__ + +#include +#include "dvb_frontend.h" + +extern int tea5761_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr); +extern struct dvb_frontend *tea5761_attach(struct dvb_frontend *fe, + struct i2c_adapter* i2c_adap, + u8 i2c_addr); + +#endif /* __TEA5761_H__ */ diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c index f24ec1a18b4..848ee6420c5 100644 --- a/drivers/media/video/tuner-core.c +++ b/drivers/media/video/tuner-core.c @@ -21,6 +21,7 @@ #include "tuner-driver.h" #include "mt20xx.h" #include "tda8290.h" +#include "tea5761.h" #define UNSET (-1U) @@ -270,7 +271,7 @@ static void set_type(struct i2c_client *c, unsigned int type, break; #ifdef CONFIG_TUNER_TEA5761 case TUNER_TEA5761: - if (tea5761_tuner_init(t) == EINVAL) { + if (tea5761_attach(&t->fe, t->i2c.adapter, t->i2c.addr) == NULL) { t->type = TUNER_ABSENT; t->mode_mask = T_UNINITIALIZED; return; @@ -571,7 +572,7 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind) switch (addr) { #ifdef CONFIG_TUNER_TEA5761 case 0x10: - if (tea5761_autodetection(t) != EINVAL) { + if (tea5761_autodetection(t->i2c.adapter, t->i2c.addr) != EINVAL) { t->type = TUNER_TEA5761; t->mode_mask = T_RADIO; t->mode = T_STANDBY; diff --git a/drivers/media/video/tuner-driver.h b/drivers/media/video/tuner-driver.h index 87d937f2f74..bcb6a61c208 100644 --- a/drivers/media/video/tuner-driver.h +++ b/drivers/media/video/tuner-driver.h @@ -76,9 +76,6 @@ extern int default_tuner_init(struct tuner *t); extern int tda9887_tuner_init(struct tuner *t); -extern int tea5761_tuner_init(struct tuner *t); -extern int tea5761_autodetection(struct tuner *t); - extern int tea5767_autodetection(struct tuner *t); extern int tea5767_tuner_init(struct tuner *t); -- cgit v1.2.3