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V4L/DVB (6132): tea5767: 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>
This commit is contained in:
Michael Krufky
Mauro Carvalho Chehab
parent
7ab10bf72a
commit
8d0936ed15
@ -13,15 +13,19 @@
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#include <linux/i2c.h>
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#include <linux/delay.h>
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#include <linux/videodev.h>
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#include "tuner-driver.h"
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#include "tuner-i2c.h"
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#include "tea5767.h"
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#define PREFIX "TEA5767 "
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static int debug = 0;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "enable verbose debug messages");
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/* from tuner-core.c */
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extern int tuner_debug;
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#define PREFIX "tea5767 "
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struct tea5767_priv {
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struct tuner_i2c_props i2c_props;
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u32 frequency;
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};
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/*****************************************************************************/
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@ -133,11 +137,6 @@ enum tea5767_xtal_freq {
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/*****************************************************************************/
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static void set_tv_freq(struct tuner *t, unsigned int freq)
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{
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tuner_warn("This tuner doesn't support TV freq.\n");
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}
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static void tea5767_status_dump(unsigned char *buffer)
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{
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unsigned int div, frq;
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@ -192,14 +191,16 @@ static void tea5767_status_dump(unsigned char *buffer)
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}
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/* Freq should be specifyed at 62.5 Hz */
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static void set_radio_freq(struct tuner *t, unsigned int frq)
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static int set_radio_freq(struct dvb_frontend *fe,
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struct analog_parameters *params)
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{
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struct tea5767_priv *priv = t->priv;
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struct tea5767_priv *priv = fe->tuner_priv;
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unsigned int frq = params->frequency;
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unsigned char buffer[5];
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unsigned div;
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int rc;
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tuner_dbg (PREFIX "radio freq = %d.%03d MHz\n", frq/16000,(frq/16)%1000);
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tuner_dbg("radio freq = %d.%03d MHz\n", frq/16000,(frq/16)%1000);
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/* Rounds freq to next decimal value - for 62.5 KHz step */
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/* frq = 20*(frq/16)+radio_frq[frq%16]; */
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@ -209,7 +210,7 @@ static void set_radio_freq(struct tuner *t, unsigned int frq)
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TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND;
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buffer[4] = 0;
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if (t->audmode == V4L2_TUNER_MODE_MONO) {
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if (params->audmode == V4L2_TUNER_MODE_MONO) {
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tuner_dbg("TEA5767 set to mono\n");
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buffer[2] |= TEA5767_MONO;
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} else {
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@ -219,26 +220,26 @@ static void set_radio_freq(struct tuner *t, unsigned int frq)
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/* Should be replaced */
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switch (TEA5767_HIGH_LO_32768) {
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case TEA5767_HIGH_LO_13MHz:
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tuner_dbg ("TEA5767 radio HIGH LO inject xtal @ 13 MHz\n");
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tuner_dbg("radio HIGH LO inject xtal @ 13 MHz\n");
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buffer[2] |= TEA5767_HIGH_LO_INJECT;
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buffer[4] |= TEA5767_PLLREF_ENABLE;
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div = (frq * (4000 / 16) + 700000 + 225000 + 25000) / 50000;
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break;
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case TEA5767_LOW_LO_13MHz:
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tuner_dbg ("TEA5767 radio LOW LO inject xtal @ 13 MHz\n");
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tuner_dbg("radio LOW LO inject xtal @ 13 MHz\n");
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buffer[4] |= TEA5767_PLLREF_ENABLE;
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div = (frq * (4000 / 16) - 700000 - 225000 + 25000) / 50000;
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break;
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case TEA5767_LOW_LO_32768:
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tuner_dbg ("TEA5767 radio LOW LO inject xtal @ 32,768 MHz\n");
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tuner_dbg("radio LOW LO inject xtal @ 32,768 MHz\n");
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buffer[3] |= TEA5767_XTAL_32768;
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/* const 700=4000*175 Khz - to adjust freq to right value */
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div = ((frq * (4000 / 16) - 700000 - 225000) + 16384) >> 15;
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break;
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case TEA5767_HIGH_LO_32768:
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default:
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tuner_dbg ("TEA5767 radio HIGH LO inject xtal @ 32,768 MHz\n");
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tuner_dbg("radio HIGH LO inject xtal @ 32,768 MHz\n");
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buffer[2] |= TEA5767_HIGH_LO_INJECT;
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buffer[3] |= TEA5767_XTAL_32768;
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@ -251,19 +252,23 @@ static void set_radio_freq(struct tuner *t, unsigned int frq)
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if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5)))
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tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
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if (tuner_debug) {
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if (debug) {
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if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5)))
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tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
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else
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tea5767_status_dump(buffer);
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}
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priv->frequency = frq * 125 / 2;
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return 0;
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}
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static int tea5767_signal(struct tuner *t)
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static int tea5767_signal(struct dvb_frontend *fe)
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{
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unsigned char buffer[5];
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int rc;
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struct tea5767_priv *priv = t->priv;
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struct tea5767_priv *priv = fe->tuner_priv;
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memset(buffer, 0, sizeof(buffer));
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if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5)))
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@ -272,11 +277,11 @@ static int tea5767_signal(struct tuner *t)
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return ((buffer[3] & TEA5767_ADC_LEVEL_MASK) << 8);
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}
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static int tea5767_stereo(struct tuner *t)
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static int tea5767_stereo(struct dvb_frontend *fe)
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{
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unsigned char buffer[5];
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int rc;
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struct tea5767_priv *priv = t->priv;
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struct tea5767_priv *priv = fe->tuner_priv;
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memset(buffer, 0, sizeof(buffer));
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if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5)))
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@ -284,15 +289,31 @@ static int tea5767_stereo(struct tuner *t)
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rc = buffer[2] & TEA5767_STEREO_MASK;
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tuner_dbg("TEA5767 radio ST GET = %02x\n", rc);
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tuner_dbg("radio ST GET = %02x\n", rc);
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return ((buffer[2] & TEA5767_STEREO_MASK) ? V4L2_TUNER_SUB_STEREO : 0);
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}
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static void tea5767_standby(struct tuner *t)
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static int tea5767_get_status(struct dvb_frontend *fe, u32 *status)
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{
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struct tea5767_priv *priv = fe->tuner_priv;
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int signal = tea5767_signal(fe);
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*status = 0;
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if (signal)
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*status = TUNER_STATUS_LOCKED;
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if (tea5767_stereo(fe))
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*status |= TUNER_STATUS_STEREO;
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tuner_dbg("tea5767: Signal strength: %d\n", signal);
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return 0;
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}
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static int tea5767_standby(struct dvb_frontend *fe)
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{
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unsigned char buffer[5];
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struct tea5767_priv *priv = t->priv;
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struct tea5767_priv *priv = fe->tuner_priv;
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unsigned div, rc;
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div = (87500 * 4 + 700 + 225 + 25) / 50; /* Set frequency to 87.5 MHz */
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@ -305,23 +326,25 @@ static void tea5767_standby(struct tuner *t)
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if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5)))
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tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
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return 0;
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}
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int tea5767_autodetection(struct tuner *t)
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int tea5767_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr)
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{
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struct tuner_i2c_props i2c = { .adap = t->i2c.adapter, .addr = t->i2c.addr };
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struct tuner_i2c_props i2c = { .adap = i2c_adap, .addr = i2c_addr };
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unsigned char buffer[7] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
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int rc;
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if ((rc = tuner_i2c_xfer_send(&i2c, buffer, 7))< 5) {
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tuner_warn("It is not a TEA5767. Received %i bytes.\n", rc);
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if ((rc = tuner_i2c_xfer_recv(&i2c, buffer, 7))< 5) {
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printk(KERN_WARNING "It is not a TEA5767. Received %i bytes.\n", rc);
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return EINVAL;
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}
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/* If all bytes are the same then it's a TV tuner and not a tea5767 */
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if (buffer[0] == buffer[1] && buffer[0] == buffer[2] &&
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buffer[0] == buffer[3] && buffer[0] == buffer[4]) {
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tuner_warn("All bytes are equal. It is not a TEA5767\n");
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printk(KERN_WARNING "All bytes are equal. It is not a TEA5767\n");
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return EINVAL;
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}
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@ -331,51 +354,73 @@ int tea5767_autodetection(struct tuner *t)
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* Byte 5: bit 7:0 : == 0
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*/
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if (((buffer[3] & 0x0f) != 0x00) || (buffer[4] != 0x00)) {
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tuner_warn("Chip ID is not zero. It is not a TEA5767\n");
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printk(KERN_WARNING "Chip ID is not zero. It is not a TEA5767\n");
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return EINVAL;
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}
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/* It seems that tea5767 returns 0xff after the 5th byte */
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if ((buffer[5] != 0xff) || (buffer[6] != 0xff)) {
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tuner_warn("Returned more than 5 bytes. It is not a TEA5767\n");
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printk(KERN_WARNING "Returned more than 5 bytes. It is not a TEA5767\n");
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return EINVAL;
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}
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tuner_warn("TEA5767 detected.\n");
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printk(KERN_WARNING "TEA5767 detected.\n");
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return 0;
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}
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static void tea5767_release(struct tuner *t)
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static int tea5767_release(struct dvb_frontend *fe)
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{
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kfree(t->priv);
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t->priv = NULL;
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kfree(fe->tuner_priv);
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fe->tuner_priv = NULL;
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return 0;
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}
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static struct tuner_operations tea5767_tuner_ops = {
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.set_tv_freq = set_tv_freq,
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.set_radio_freq = set_radio_freq,
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.has_signal = tea5767_signal,
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.is_stereo = tea5767_stereo,
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.standby = tea5767_standby,
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.release = tea5767_release,
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static int tea5767_get_frequency(struct dvb_frontend *fe, u32 *frequency)
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{
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struct tea5767_priv *priv = fe->tuner_priv;
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*frequency = priv->frequency;
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return 0;
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}
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static struct dvb_tuner_ops tea5767_tuner_ops = {
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.info = {
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.name = "tea5767", // Philips TEA5767HN FM Radio
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},
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.set_analog_params = set_radio_freq,
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.sleep = tea5767_standby,
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.release = tea5767_release,
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.get_frequency = tea5767_get_frequency,
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.get_status = tea5767_get_status,
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};
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int tea5767_tuner_init(struct tuner *t)
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struct dvb_frontend *tea5767_attach(struct dvb_frontend *fe,
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struct i2c_adapter* i2c_adap,
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u8 i2c_addr)
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{
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struct tea5767_priv *priv = NULL;
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priv = kzalloc(sizeof(struct tea5767_priv), GFP_KERNEL);
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if (priv == NULL)
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return -ENOMEM;
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t->priv = priv;
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return NULL;
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fe->tuner_priv = priv;
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priv->i2c_props.addr = t->i2c.addr;
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priv->i2c_props.adap = t->i2c.adapter;
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priv->i2c_props.addr = i2c_addr;
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priv->i2c_props.adap = i2c_adap;
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tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5767HN FM Radio");
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strlcpy(t->i2c.name, "tea5767", sizeof(t->i2c.name));
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memcpy(&fe->ops.tuner_ops, &tea5767_tuner_ops,
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sizeof(struct dvb_tuner_ops));
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memcpy(&t->ops, &tea5767_tuner_ops, sizeof(struct tuner_operations));
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tuner_info("type set to %s\n", "Philips TEA5767HN FM Radio");
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return (0);
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return fe;
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}
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EXPORT_SYMBOL_GPL(tea5767_attach);
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EXPORT_SYMBOL_GPL(tea5767_autodetection);
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MODULE_DESCRIPTION("Philips TEA5767 FM tuner driver");
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MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
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MODULE_LICENSE("GPL");
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29
drivers/media/video/tea5767.h
Normal file
29
drivers/media/video/tea5767.h
Normal file
@ -0,0 +1,29 @@
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/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __TEA5767_H__
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#define __TEA5767_H__
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#include <linux/i2c.h>
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#include "dvb_frontend.h"
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extern int tea5767_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr);
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extern struct dvb_frontend *tea5767_attach(struct dvb_frontend *fe,
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struct i2c_adapter* i2c_adap,
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u8 i2c_addr);
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#endif /* __TEA5767_H__ */
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@ -22,6 +22,7 @@
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#include "mt20xx.h"
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#include "tda8290.h"
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#include "tea5761.h"
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#include "tea5767.h"
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#define UNSET (-1U)
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@ -262,7 +263,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
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break;
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}
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case TUNER_TEA5767:
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if (tea5767_tuner_init(t) == EINVAL) {
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if (tea5767_attach(&t->fe, t->i2c.adapter, t->i2c.addr) == NULL) {
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t->type = TUNER_ABSENT;
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t->mode_mask = T_UNINITIALIZED;
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return;
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@ -600,7 +601,7 @@ static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
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}
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break;
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case 0x60:
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if (tea5767_autodetection(t) != EINVAL) {
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if (tea5767_autodetection(t->i2c.adapter, t->i2c.addr) != EINVAL) {
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t->type = TUNER_TEA5767;
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t->mode_mask = T_RADIO;
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t->mode = T_STANDBY;
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@ -76,9 +76,6 @@ extern int default_tuner_init(struct tuner *t);
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extern int tda9887_tuner_init(struct tuner *t);
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extern int tea5767_autodetection(struct tuner *t);
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extern int tea5767_tuner_init(struct tuner *t);
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/* ------------------------------------------------------------------------ */
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#define tuner_warn(fmt, arg...) do {\
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