diff options
author | Michael Krufky <mkrufky@linuxtv.org> | 2007-08-27 21:23:40 -0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-10-09 22:07:39 -0300 |
commit | 7ab10bf72add23f0badf98ead92f58e34e14d35a (patch) | |
tree | 098a6c00ca2004f642ec84316449e78c1d8dd635 /drivers/media/video/tea5761.c | |
parent | 96c0b7cfa5de1d6be0a6f6d202a6a078f5577d8f (diff) |
V4L/DVB (6131): tea5761: convert from tuner sub-driver into dvb_frontend module
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: Mike Isely <isely@pobox.com>
Acked-by: Steven Toth <stoth@hauppauge.com>
Acked-by: Patrick Boettcher <pb@linuxtv.org>
Acked-by: Jarod Wilson <jwilson@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/tea5761.c')
-rw-r--r-- | drivers/media/video/tea5761.c | 132 |
1 files changed, 87 insertions, 45 deletions
diff --git a/drivers/media/video/tea5761.c b/drivers/media/video/tea5761.c index 9965ba48cffa..8cdaf474ffdd 100644 --- a/drivers/media/video/tea5761.c +++ b/drivers/media/video/tea5761.c @@ -11,15 +11,19 @@ #include <linux/delay.h> #include <linux/videodev.h> #include <media/tuner.h> -#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 <mchehab@infradead.org>"); +MODULE_LICENSE("GPL"); |