diff options
Diffstat (limited to 'linux/drivers/media/video/tea5767.c')
-rw-r--r-- | linux/drivers/media/video/tea5767.c | 183 |
1 files changed, 125 insertions, 58 deletions
diff --git a/linux/drivers/media/video/tea5767.c b/linux/drivers/media/video/tea5767.c index 145b0716e..1fc1844b8 100644 --- a/linux/drivers/media/video/tea5767.c +++ b/linux/drivers/media/video/tea5767.c @@ -14,15 +14,23 @@ #include <linux/delay.h> #include "compat.h" #include <linux/videodev.h> -#include "tuner-driver.h" +#include "tuner-i2c.h" +#include "tea5767.h" #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) #include "i2c-compat.h" #endif -#define PREFIX "TEA5767 " +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 "tea5767 " + +struct tea5767_priv { + struct tuner_i2c_props i2c_props; + + u32 frequency; +}; /*****************************************************************************/ @@ -133,13 +141,6 @@ enum tea5767_xtal_freq { /*****************************************************************************/ -static void set_tv_freq(struct i2c_client *c, unsigned int freq) -{ - struct tuner *t = i2c_get_clientdata(c); - - tuner_warn("This tuner doesn't support TV freq.\n"); -} - static void tea5767_status_dump(unsigned char *buffer) { unsigned int div, frq; @@ -194,14 +195,16 @@ static void tea5767_status_dump(unsigned char *buffer) } /* Freq should be specifyed at 62.5 Hz */ -static void set_radio_freq(struct i2c_client *c, unsigned int frq) +static int set_radio_freq(struct dvb_frontend *fe, + struct analog_parameters *params) { - struct tuner *t = i2c_get_clientdata(c); + struct tea5767_priv *priv = fe->tuner_priv; + unsigned int frq = params->frequency; unsigned char buffer[5]; unsigned div; int rc; - tuner_dbg (PREFIX "radio freq = %d.%03d MHz\n", frq/16000,(frq/16)%1000); + tuner_dbg("radio freq = %d.%03d MHz\n", frq/16000,(frq/16)%1000); /* Rounds freq to next decimal value - for 62.5 KHz step */ /* frq = 20*(frq/16)+radio_frq[frq%16]; */ @@ -211,7 +214,7 @@ static void set_radio_freq(struct i2c_client *c, unsigned int frq) TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND; buffer[4] = 0; - if (t->audmode == V4L2_TUNER_MODE_MONO) { + if (params->audmode == V4L2_TUNER_MODE_MONO) { tuner_dbg("TEA5767 set to mono\n"); buffer[2] |= TEA5767_MONO; } else { @@ -221,26 +224,26 @@ static void set_radio_freq(struct i2c_client *c, unsigned int frq) /* Should be replaced */ switch (TEA5767_HIGH_LO_32768) { case TEA5767_HIGH_LO_13MHz: - tuner_dbg ("TEA5767 radio HIGH LO inject xtal @ 13 MHz\n"); + tuner_dbg("radio HIGH LO inject xtal @ 13 MHz\n"); buffer[2] |= TEA5767_HIGH_LO_INJECT; buffer[4] |= TEA5767_PLLREF_ENABLE; div = (frq * (4000 / 16) + 700000 + 225000 + 25000) / 50000; break; case TEA5767_LOW_LO_13MHz: - tuner_dbg ("TEA5767 radio LOW LO inject xtal @ 13 MHz\n"); + tuner_dbg("radio LOW LO inject xtal @ 13 MHz\n"); buffer[4] |= TEA5767_PLLREF_ENABLE; div = (frq * (4000 / 16) - 700000 - 225000 + 25000) / 50000; break; case TEA5767_LOW_LO_32768: - tuner_dbg ("TEA5767 radio LOW LO inject xtal @ 32,768 MHz\n"); + tuner_dbg("radio LOW LO inject xtal @ 32,768 MHz\n"); buffer[3] |= TEA5767_XTAL_32768; /* const 700=4000*175 Khz - to adjust freq to right value */ div = ((frq * (4000 / 16) - 700000 - 225000) + 16384) >> 15; break; case TEA5767_HIGH_LO_32768: default: - tuner_dbg ("TEA5767 radio HIGH LO inject xtal @ 32,768 MHz\n"); + tuner_dbg("radio HIGH LO inject xtal @ 32,768 MHz\n"); buffer[2] |= TEA5767_HIGH_LO_INJECT; buffer[3] |= TEA5767_XTAL_32768; @@ -250,51 +253,71 @@ static void set_radio_freq(struct i2c_client *c, unsigned int frq) buffer[0] = (div >> 8) & 0x3f; buffer[1] = div & 0xff; - if (5 != (rc = i2c_master_send(c, buffer, 5))) + if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5))) tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); - if (tuner_debug) { - if (5 != (rc = i2c_master_recv(c, buffer, 5))) + if (debug) { + if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5))) tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); else tea5767_status_dump(buffer); } + + priv->frequency = frq * 125 / 2; + + return 0; } -static int tea5767_signal(struct i2c_client *c) +static int tea5767_signal(struct dvb_frontend *fe) { unsigned char buffer[5]; int rc; - struct tuner *t = i2c_get_clientdata(c); + struct tea5767_priv *priv = fe->tuner_priv; memset(buffer, 0, sizeof(buffer)); - if (5 != (rc = i2c_master_recv(c, buffer, 5))) + if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5))) tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); return ((buffer[3] & TEA5767_ADC_LEVEL_MASK) << 8); } -static int tea5767_stereo(struct i2c_client *c) +static int tea5767_stereo(struct dvb_frontend *fe) { unsigned char buffer[5]; int rc; - struct tuner *t = i2c_get_clientdata(c); + struct tea5767_priv *priv = fe->tuner_priv; memset(buffer, 0, sizeof(buffer)); - if (5 != (rc = i2c_master_recv(c, buffer, 5))) + if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5))) tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); rc = buffer[2] & TEA5767_STEREO_MASK; - tuner_dbg("TEA5767 radio ST GET = %02x\n", rc); + tuner_dbg("radio ST GET = %02x\n", rc); return ((buffer[2] & TEA5767_STEREO_MASK) ? V4L2_TUNER_SUB_STEREO : 0); } -static void tea5767_standby(struct i2c_client *c) +static int tea5767_get_status(struct dvb_frontend *fe, u32 *status) +{ + struct tea5767_priv *priv = fe->tuner_priv; + int signal = tea5767_signal(fe); + *status = 0; + + if (signal) + *status = TUNER_STATUS_LOCKED; + if (tea5767_stereo(fe)) + *status |= TUNER_STATUS_STEREO; + + tuner_dbg("tea5767: Signal strength: %d\n", signal); + + return 0; +} + +static int tea5767_standby(struct dvb_frontend *fe) { unsigned char buffer[5]; - struct tuner *t = i2c_get_clientdata(c); + struct tea5767_priv *priv = fe->tuner_priv; unsigned div, rc; div = (87500 * 4 + 700 + 225 + 25) / 50; /* Set frequency to 87.5 MHz */ @@ -305,28 +328,30 @@ static void tea5767_standby(struct i2c_client *c) TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND | TEA5767_STDBY; buffer[4] = 0; - if (5 != (rc = i2c_master_send(c, buffer, 5))) + if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5))) tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); + + return 0; } -int tea5767_autodetection(struct i2c_client *c) +int tea5767_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr) { + struct tuner_i2c_props i2c = { .adap = i2c_adap, .addr = i2c_addr }; unsigned char buffer[7] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; int rc; - struct tuner *t = i2c_get_clientdata(c); #if 0 /* Needed if uncomment I2C send code below */ int div; #endif - if ((rc = i2c_master_recv(c, buffer, 7))< 5) { - tuner_warn("It is not a TEA5767. Received %i bytes.\n", rc); + if ((rc = tuner_i2c_xfer_recv(&i2c, buffer, 7))< 5) { + printk(KERN_WARNING "It is not a TEA5767. Received %i bytes.\n", rc); return EINVAL; } /* If all bytes are the same then it's a TV tuner and not a tea5767 */ if (buffer[0] == buffer[1] && buffer[0] == buffer[2] && buffer[0] == buffer[3] && buffer[0] == buffer[4]) { - tuner_warn("All bytes are equal. It is not a TEA5767\n"); + printk(KERN_WARNING "All bytes are equal. It is not a TEA5767\n"); return EINVAL; } @@ -336,13 +361,13 @@ int tea5767_autodetection(struct i2c_client *c) * Byte 5: bit 7:0 : == 0 */ if (((buffer[3] & 0x0f) != 0x00) || (buffer[4] != 0x00)) { - tuner_warn("Chip ID is not zero. It is not a TEA5767\n"); + printk(KERN_WARNING "Chip ID is not zero. It is not a TEA5767\n"); return EINVAL; } /* It seems that tea5767 returns 0xff after the 5th byte */ if ((buffer[5] != 0xff) || (buffer[6] != 0xff)) { - tuner_warn("Returned more than 5 bytes. It is not a TEA5767\n"); + printk(KERN_WARNING "Returned more than 5 bytes. It is not a TEA5767\n"); return EINVAL; } @@ -356,48 +381,90 @@ int tea5767_autodetection(struct i2c_client *c) TEA5767_ST_NOISE_CTL; buffer[4] = 0; - if (5 != (rc = i2c_master_send(c, buffer, 5))) - tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); + if (5 != (rc = tuner_i2c_xfer_send(&i2c, buffer, 5))) + printk(KERN_WARNING "i2c i/o error: rc == %d (should be 5)\n", rc); msleep(15); - if (5 != (rc = i2c_master_recv(c, buffer, 5))) { - tuner_warn("It is not a TEA5767. Received %i bytes.\n", rc); + if (5 != (rc = tuner_i2c_xfer_recv(&i2c, buffer, 5))) { + printk(KERN_WARNING "It is not a TEA5767. Received %i bytes.\n", rc); return EINVAL; } /* Initial freq for 32.768KHz clock */ if ((buffer[1] != (div & 0xff) ) || ((buffer[0] & 0x3f) != ((div >> 8) & 0x3f))) { - tuner_warn("It is not a TEA5767. div=%d, Return: %02x %02x %02x %02x %02x\n", + printk(KERN_WARNING "It is not a TEA5767. div=%d, Return: %02x %02x %02x %02x %02x\n", div,buffer[0],buffer[1],buffer[2],buffer[3],buffer[4]); tea5767_status_dump(buffer); return EINVAL; } #endif - tuner_warn("TEA5767 detected.\n"); + printk(KERN_WARNING "TEA5767 detected.\n"); + return 0; +} + +static int tea5767_release(struct dvb_frontend *fe) +{ + kfree(fe->tuner_priv); + fe->tuner_priv = NULL; + + return 0; +} + +static int tea5767_get_frequency(struct dvb_frontend *fe, u32 *frequency) +{ + struct tea5767_priv *priv = fe->tuner_priv; + *frequency = priv->frequency; return 0; } -static struct tuner_operations tea5767_tuner_ops = { - .set_tv_freq = set_tv_freq, - .set_radio_freq = set_radio_freq, - .has_signal = tea5767_signal, - .is_stereo = tea5767_stereo, - .standby = tea5767_standby, +static struct dvb_tuner_ops tea5767_tuner_ops = { + .info = { + .name = "tea5767", // Philips TEA5767HN FM Radio +#if 0 + .frequency_min = , + .frequency_max = , + .frequency_step = , +#endif + }, + + .set_analog_params = set_radio_freq, + .sleep = tea5767_standby, + .release = tea5767_release, + .get_frequency = tea5767_get_frequency, + .get_status = tea5767_get_status, }; -int tea5767_tuner_init(struct i2c_client *c) +struct dvb_frontend *tea5767_attach(struct dvb_frontend *fe, + struct i2c_adapter* i2c_adap, + u8 i2c_addr) { - struct tuner *t = i2c_get_clientdata(c); + struct tea5767_priv *priv = NULL; #if 0 /* By removing autodetection allows forcing TEA chip */ - if (tea5767_autodetection(c) == EINVAL) + if (tea5767_autodetection(i2c_adap, i2c_addr) == EINVAL) return EINVAL; #endif - tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5767HN FM Radio"); - strlcpy(c->name, "tea5767", sizeof(c->name)); + priv = kzalloc(sizeof(struct tea5767_priv), GFP_KERNEL); + if (priv == NULL) + return NULL; + fe->tuner_priv = priv; + + priv->i2c_props.addr = i2c_addr; + priv->i2c_props.adap = i2c_adap; - memcpy(&t->ops, &tea5767_tuner_ops, sizeof(struct tuner_operations)); + memcpy(&fe->ops.tuner_ops, &tea5767_tuner_ops, + sizeof(struct dvb_tuner_ops)); - return (0); + tuner_info("type set to %s\n", "Philips TEA5767HN FM Radio"); + + return fe; } + + +EXPORT_SYMBOL_GPL(tea5767_attach); +EXPORT_SYMBOL_GPL(tea5767_autodetection); + +MODULE_DESCRIPTION("Philips TEA5767 FM tuner driver"); +MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>"); +MODULE_LICENSE("GPL"); |