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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-06-14 23:35:59 +0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 06:40:28 +0400
commitccae7af2bf07dfef69cc2eb6ebc9e1ff15addfbd (patch)
treef33391cf2efe9038c13b88ca4049317728a7ebf0 /drivers/media/common/tuners/tea5767.c
parent3785bc170f79ef04129731582b468c28e1326d6d (diff)
downloadlinux-ccae7af2bf07dfef69cc2eb6ebc9e1ff15addfbd.tar.xz
[media] common: move media/common/tuners to media/tuners
Move the tuners one level up, as the "common" directory will be used by drivers that are shared between more than one driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/common/tuners/tea5767.c')
-rw-r--r--drivers/media/common/tuners/tea5767.c475
1 files changed, 0 insertions, 475 deletions
diff --git a/drivers/media/common/tuners/tea5767.c b/drivers/media/common/tuners/tea5767.c
deleted file mode 100644
index 36e85d81acb2..000000000000
--- a/drivers/media/common/tuners/tea5767.c
+++ /dev/null
@@ -1,475 +0,0 @@
-/*
- * For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview
- * I2C address is allways 0xC0.
- *
- *
- * Copyright (c) 2005 Mauro Carvalho Chehab (mchehab@infradead.org)
- * This code is placed under the terms of the GNU General Public License
- *
- * tea5767 autodetection thanks to Torsten Seeboth and Atsushi Nakagawa
- * from their contributions on DScaler.
- */
-
-#include <linux/i2c.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/videodev2.h>
-#include "tuner-i2c.h"
-#include "tea5767.h"
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "enable verbose debug messages");
-
-/*****************************************************************************/
-
-struct tea5767_priv {
- struct tuner_i2c_props i2c_props;
- u32 frequency;
- struct tea5767_ctrl ctrl;
-};
-
-/*****************************************************************************/
-
-/******************************
- * Write mode register values *
- ******************************/
-
-/* First register */
-#define TEA5767_MUTE 0x80 /* Mutes output */
-#define TEA5767_SEARCH 0x40 /* Activates station search */
-/* Bits 0-5 for divider MSB */
-
-/* Second register */
-/* Bits 0-7 for divider LSB */
-
-/* Third register */
-
-/* Station search from botton to up */
-#define TEA5767_SEARCH_UP 0x80
-
-/* Searches with ADC output = 10 */
-#define TEA5767_SRCH_HIGH_LVL 0x60
-
-/* Searches with ADC output = 10 */
-#define TEA5767_SRCH_MID_LVL 0x40
-
-/* Searches with ADC output = 5 */
-#define TEA5767_SRCH_LOW_LVL 0x20
-
-/* if on, div=4*(Frf+Fif)/Fref otherwise, div=4*(Frf-Fif)/Freq) */
-#define TEA5767_HIGH_LO_INJECT 0x10
-
-/* Disable stereo */
-#define TEA5767_MONO 0x08
-
-/* Disable right channel and turns to mono */
-#define TEA5767_MUTE_RIGHT 0x04
-
-/* Disable left channel and turns to mono */
-#define TEA5767_MUTE_LEFT 0x02
-
-#define TEA5767_PORT1_HIGH 0x01
-
-/* Fourth register */
-#define TEA5767_PORT2_HIGH 0x80
-/* Chips stops working. Only I2C bus remains on */
-#define TEA5767_STDBY 0x40
-
-/* Japan freq (76-108 MHz. If disabled, 87.5-108 MHz */
-#define TEA5767_JAPAN_BAND 0x20
-
-/* Unselected means 32.768 KHz freq as reference. Otherwise Xtal at 13 MHz */
-#define TEA5767_XTAL_32768 0x10
-
-/* Cuts weak signals */
-#define TEA5767_SOFT_MUTE 0x08
-
-/* Activates high cut control */
-#define TEA5767_HIGH_CUT_CTRL 0x04
-
-/* Activates stereo noise control */
-#define TEA5767_ST_NOISE_CTL 0x02
-
-/* If activate PORT 1 indicates SEARCH or else it is used as PORT1 */
-#define TEA5767_SRCH_IND 0x01
-
-/* Fifth register */
-
-/* By activating, it will use Xtal at 13 MHz as reference for divider */
-#define TEA5767_PLLREF_ENABLE 0x80
-
-/* By activating, deemphasis=50, or else, deemphasis of 50us */
-#define TEA5767_DEEMPH_75 0X40
-
-/*****************************
- * Read mode register values *
- *****************************/
-
-/* First register */
-#define TEA5767_READY_FLAG_MASK 0x80
-#define TEA5767_BAND_LIMIT_MASK 0X40
-/* Bits 0-5 for divider MSB after search or preset */
-
-/* Second register */
-/* Bits 0-7 for divider LSB after search or preset */
-
-/* Third register */
-#define TEA5767_STEREO_MASK 0x80
-#define TEA5767_IF_CNTR_MASK 0x7f
-
-/* Fourth register */
-#define TEA5767_ADC_LEVEL_MASK 0xf0
-
-/* should be 0 */
-#define TEA5767_CHIP_ID_MASK 0x0f
-
-/* Fifth register */
-/* Reserved for future extensions */
-#define TEA5767_RESERVED_MASK 0xff
-
-/*****************************************************************************/
-
-static void tea5767_status_dump(struct tea5767_priv *priv,
- unsigned char *buffer)
-{
- unsigned int div, frq;
-
- if (TEA5767_READY_FLAG_MASK & buffer[0])
- tuner_info("Ready Flag ON\n");
- else
- tuner_info("Ready Flag OFF\n");
-
- if (TEA5767_BAND_LIMIT_MASK & buffer[0])
- tuner_info("Tuner at band limit\n");
- else
- tuner_info("Tuner not at band limit\n");
-
- div = ((buffer[0] & 0x3f) << 8) | buffer[1];
-
- switch (priv->ctrl.xtal_freq) {
- case TEA5767_HIGH_LO_13MHz:
- frq = (div * 50000 - 700000 - 225000) / 4; /* Freq in KHz */
- break;
- case TEA5767_LOW_LO_13MHz:
- frq = (div * 50000 + 700000 + 225000) / 4; /* Freq in KHz */
- break;
- case TEA5767_LOW_LO_32768:
- frq = (div * 32768 + 700000 + 225000) / 4; /* Freq in KHz */
- break;
- case TEA5767_HIGH_LO_32768:
- default:
- frq = (div * 32768 - 700000 - 225000) / 4; /* Freq in KHz */
- break;
- }
- buffer[0] = (div >> 8) & 0x3f;
- buffer[1] = div & 0xff;
-
- tuner_info("Frequency %d.%03d KHz (divider = 0x%04x)\n",
- frq / 1000, frq % 1000, div);
-
- if (TEA5767_STEREO_MASK & buffer[2])
- tuner_info("Stereo\n");
- else
- tuner_info("Mono\n");
-
- tuner_info("IF Counter = %d\n", buffer[2] & TEA5767_IF_CNTR_MASK);
-
- tuner_info("ADC Level = %d\n",
- (buffer[3] & TEA5767_ADC_LEVEL_MASK) >> 4);
-
- tuner_info("Chip ID = %d\n", (buffer[3] & TEA5767_CHIP_ID_MASK));
-
- tuner_info("Reserved = 0x%02x\n",
- (buffer[4] & TEA5767_RESERVED_MASK));
-}
-
-/* Freq should be specifyed at 62.5 Hz */
-static int set_radio_freq(struct dvb_frontend *fe,
- struct analog_parameters *params)
-{
- struct tea5767_priv *priv = fe->tuner_priv;
- unsigned int frq = params->frequency;
- unsigned char buffer[5];
- unsigned div;
- int rc;
-
- tuner_dbg("radio freq = %d.%03d MHz\n", frq/16000,(frq/16)%1000);
-
- buffer[2] = 0;
-
- if (priv->ctrl.port1)
- buffer[2] |= TEA5767_PORT1_HIGH;
-
- if (params->audmode == V4L2_TUNER_MODE_MONO) {
- tuner_dbg("TEA5767 set to mono\n");
- buffer[2] |= TEA5767_MONO;
- } else {
- tuner_dbg("TEA5767 set to stereo\n");
- }
-
-
- buffer[3] = 0;
-
- if (priv->ctrl.port2)
- buffer[3] |= TEA5767_PORT2_HIGH;
-
- if (priv->ctrl.high_cut)
- buffer[3] |= TEA5767_HIGH_CUT_CTRL;
-
- if (priv->ctrl.st_noise)
- buffer[3] |= TEA5767_ST_NOISE_CTL;
-
- if (priv->ctrl.soft_mute)
- buffer[3] |= TEA5767_SOFT_MUTE;
-
- if (priv->ctrl.japan_band)
- buffer[3] |= TEA5767_JAPAN_BAND;
-
- buffer[4] = 0;
-
- if (priv->ctrl.deemph_75)
- buffer[4] |= TEA5767_DEEMPH_75;
-
- if (priv->ctrl.pllref)
- buffer[4] |= TEA5767_PLLREF_ENABLE;
-
-
- /* Rounds freq to next decimal value - for 62.5 KHz step */
- /* frq = 20*(frq/16)+radio_frq[frq%16]; */
-
- switch (priv->ctrl.xtal_freq) {
- case TEA5767_HIGH_LO_13MHz:
- tuner_dbg("radio HIGH LO inject xtal @ 13 MHz\n");
- buffer[2] |= TEA5767_HIGH_LO_INJECT;
- div = (frq * (4000 / 16) + 700000 + 225000 + 25000) / 50000;
- break;
- case TEA5767_LOW_LO_13MHz:
- tuner_dbg("radio LOW LO inject xtal @ 13 MHz\n");
-
- div = (frq * (4000 / 16) - 700000 - 225000 + 25000) / 50000;
- break;
- case TEA5767_LOW_LO_32768:
- 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("radio HIGH LO inject xtal @ 32,768 MHz\n");
-
- buffer[2] |= TEA5767_HIGH_LO_INJECT;
- buffer[3] |= TEA5767_XTAL_32768;
- div = ((frq * (4000 / 16) + 700000 + 225000) + 16384) >> 15;
- break;
- }
- buffer[0] = (div >> 8) & 0x3f;
- buffer[1] = div & 0xff;
-
- 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 (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(priv, buffer);
- }
-
- priv->frequency = frq * 125 / 2;
-
- return 0;
-}
-
-static int tea5767_read_status(struct dvb_frontend *fe, char *buffer)
-{
- struct tea5767_priv *priv = fe->tuner_priv;
- int rc;
-
- memset(buffer, 0, 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 -EREMOTEIO;
- }
-
- return 0;
-}
-
-static inline int tea5767_signal(struct dvb_frontend *fe, const char *buffer)
-{
- struct tea5767_priv *priv = fe->tuner_priv;
-
- int signal = ((buffer[3] & TEA5767_ADC_LEVEL_MASK) << 8);
-
- tuner_dbg("Signal strength: %d\n", signal);
-
- return signal;
-}
-
-static inline int tea5767_stereo(struct dvb_frontend *fe, const char *buffer)
-{
- struct tea5767_priv *priv = fe->tuner_priv;
-
- int stereo = buffer[2] & TEA5767_STEREO_MASK;
-
- tuner_dbg("Radio ST GET = %02x\n", stereo);
-
- return (stereo ? V4L2_TUNER_SUB_STEREO : 0);
-}
-
-static int tea5767_get_status(struct dvb_frontend *fe, u32 *status)
-{
- unsigned char buffer[5];
-
- *status = 0;
-
- if (0 == tea5767_read_status(fe, buffer)) {
- if (tea5767_signal(fe, buffer))
- *status = TUNER_STATUS_LOCKED;
- if (tea5767_stereo(fe, buffer))
- *status |= TUNER_STATUS_STEREO;
- }
-
- return 0;
-}
-
-static int tea5767_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
-{
- unsigned char buffer[5];
-
- *strength = 0;
-
- if (0 == tea5767_read_status(fe, buffer))
- *strength = tea5767_signal(fe, buffer);
-
- return 0;
-}
-
-static int tea5767_standby(struct dvb_frontend *fe)
-{
- unsigned char buffer[5];
- struct tea5767_priv *priv = fe->tuner_priv;
- unsigned div, rc;
-
- div = (87500 * 4 + 700 + 225 + 25) / 50; /* Set frequency to 87.5 MHz */
- buffer[0] = (div >> 8) & 0x3f;
- buffer[1] = div & 0xff;
- buffer[2] = TEA5767_PORT1_HIGH;
- buffer[3] = TEA5767_PORT2_HIGH | TEA5767_HIGH_CUT_CTRL |
- TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND | TEA5767_STDBY;
- buffer[4] = 0;
-
- 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_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;
-
- 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]) {
- printk(KERN_WARNING "All bytes are equal. It is not a TEA5767\n");
- return -EINVAL;
- }
-
- /* Status bytes:
- * Byte 4: bit 3:1 : CI (Chip Identification) == 0
- * bit 0 : internally set to 0
- * Byte 5: bit 7:0 : == 0
- */
- if (((buffer[3] & 0x0f) != 0x00) || (buffer[4] != 0x00)) {
- printk(KERN_WARNING "Chip ID is not zero. It is not a TEA5767\n");
- return -EINVAL;
- }
-
-
- 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 int tea5767_set_config (struct dvb_frontend *fe, void *priv_cfg)
-{
- struct tea5767_priv *priv = fe->tuner_priv;
-
- memcpy(&priv->ctrl, priv_cfg, sizeof(priv->ctrl));
-
- return 0;
-}
-
-static struct dvb_tuner_ops tea5767_tuner_ops = {
- .info = {
- .name = "tea5767", // Philips TEA5767HN FM Radio
- },
-
- .set_analog_params = set_radio_freq,
- .set_config = tea5767_set_config,
- .sleep = tea5767_standby,
- .release = tea5767_release,
- .get_frequency = tea5767_get_frequency,
- .get_status = tea5767_get_status,
- .get_rf_strength = tea5767_get_rf_strength,
-};
-
-struct dvb_frontend *tea5767_attach(struct dvb_frontend *fe,
- struct i2c_adapter* i2c_adap,
- u8 i2c_addr)
-{
- struct tea5767_priv *priv = NULL;
-
- 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;
- priv->i2c_props.name = "tea5767";
-
- priv->ctrl.xtal_freq = TEA5767_HIGH_LO_32768;
- priv->ctrl.port1 = 1;
- priv->ctrl.port2 = 1;
- priv->ctrl.high_cut = 1;
- priv->ctrl.st_noise = 1;
- priv->ctrl.japan_band = 1;
-
- memcpy(&fe->ops.tuner_ops, &tea5767_tuner_ops,
- sizeof(struct dvb_tuner_ops));
-
- 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");