710 lines
18 KiB
C
710 lines
18 KiB
C
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/i2c.h>
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/delay.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-common.h>
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#include <media/tuner.h>
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#include "tuner-i2c.h"
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#include "tda9887.h"
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/* Chips:
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TDA9885 (PAL, NTSC)
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TDA9886 (PAL, SECAM, NTSC)
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TDA9887 (PAL, SECAM, NTSC, FM Radio)
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Used as part of several tuners
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*/
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static int debug;
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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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static DEFINE_MUTEX(tda9887_list_mutex);
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static LIST_HEAD(hybrid_tuner_instance_list);
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struct tda9887_priv {
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struct tuner_i2c_props i2c_props;
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struct list_head hybrid_tuner_instance_list;
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unsigned char data[4];
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unsigned int config;
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unsigned int mode;
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unsigned int audmode;
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v4l2_std_id std;
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bool standby;
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};
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/* ---------------------------------------------------------------------- */
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#define UNSET (-1U)
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struct tvnorm {
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v4l2_std_id std;
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char *name;
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unsigned char b;
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unsigned char c;
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unsigned char e;
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};
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/* ---------------------------------------------------------------------- */
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//
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// TDA defines
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//
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//// first reg (b)
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#define cVideoTrapBypassOFF 0x00 // bit b0
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#define cVideoTrapBypassON 0x01 // bit b0
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#define cAutoMuteFmInactive 0x00 // bit b1
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#define cAutoMuteFmActive 0x02 // bit b1
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#define cIntercarrier 0x00 // bit b2
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#define cQSS 0x04 // bit b2
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#define cPositiveAmTV 0x00 // bit b3:4
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#define cFmRadio 0x08 // bit b3:4
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#define cNegativeFmTV 0x10 // bit b3:4
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#define cForcedMuteAudioON 0x20 // bit b5
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#define cForcedMuteAudioOFF 0x00 // bit b5
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#define cOutputPort1Active 0x00 // bit b6
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#define cOutputPort1Inactive 0x40 // bit b6
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#define cOutputPort2Active 0x00 // bit b7
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#define cOutputPort2Inactive 0x80 // bit b7
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//// second reg (c)
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#define cDeemphasisOFF 0x00 // bit c5
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#define cDeemphasisON 0x20 // bit c5
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#define cDeemphasis75 0x00 // bit c6
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#define cDeemphasis50 0x40 // bit c6
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#define cAudioGain0 0x00 // bit c7
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#define cAudioGain6 0x80 // bit c7
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#define cTopMask 0x1f // bit c0:4
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#define cTopDefault 0x10 // bit c0:4
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//// third reg (e)
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#define cAudioIF_4_5 0x00 // bit e0:1
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#define cAudioIF_5_5 0x01 // bit e0:1
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#define cAudioIF_6_0 0x02 // bit e0:1
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#define cAudioIF_6_5 0x03 // bit e0:1
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#define cVideoIFMask 0x1c // bit e2:4
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/* Video IF selection in TV Mode (bit B3=0) */
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#define cVideoIF_58_75 0x00 // bit e2:4
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#define cVideoIF_45_75 0x04 // bit e2:4
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#define cVideoIF_38_90 0x08 // bit e2:4
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#define cVideoIF_38_00 0x0C // bit e2:4
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#define cVideoIF_33_90 0x10 // bit e2:4
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#define cVideoIF_33_40 0x14 // bit e2:4
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#define cRadioIF_45_75 0x18 // bit e2:4
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#define cRadioIF_38_90 0x1C // bit e2:4
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/* IF1 selection in Radio Mode (bit B3=1) */
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#define cRadioIF_33_30 0x00 // bit e2,4 (also 0x10,0x14)
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#define cRadioIF_41_30 0x04 // bit e2,4
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/* Output of AFC pin in radio mode when bit E7=1 */
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#define cRadioAGC_SIF 0x00 // bit e3
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#define cRadioAGC_FM 0x08 // bit e3
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#define cTunerGainNormal 0x00 // bit e5
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#define cTunerGainLow 0x20 // bit e5
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#define cGating_18 0x00 // bit e6
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#define cGating_36 0x40 // bit e6
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#define cAgcOutON 0x80 // bit e7
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#define cAgcOutOFF 0x00 // bit e7
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/* ---------------------------------------------------------------------- */
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static struct tvnorm tvnorms[] = {
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{
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.std = V4L2_STD_PAL_BG | V4L2_STD_PAL_H | V4L2_STD_PAL_N,
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.name = "PAL-BGHN",
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.b = ( cNegativeFmTV |
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cQSS ),
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.c = ( cDeemphasisON |
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cDeemphasis50 |
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cTopDefault),
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.e = ( cGating_36 |
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cAudioIF_5_5 |
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cVideoIF_38_90 ),
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},{
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.std = V4L2_STD_PAL_I,
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.name = "PAL-I",
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.b = ( cNegativeFmTV |
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cQSS ),
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.c = ( cDeemphasisON |
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cDeemphasis50 |
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cTopDefault),
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.e = ( cGating_36 |
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cAudioIF_6_0 |
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cVideoIF_38_90 ),
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},{
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.std = V4L2_STD_PAL_DK,
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.name = "PAL-DK",
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.b = ( cNegativeFmTV |
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cQSS ),
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.c = ( cDeemphasisON |
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cDeemphasis50 |
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cTopDefault),
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.e = ( cGating_36 |
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cAudioIF_6_5 |
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cVideoIF_38_90 ),
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},{
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.std = V4L2_STD_PAL_M | V4L2_STD_PAL_Nc,
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.name = "PAL-M/Nc",
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.b = ( cNegativeFmTV |
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cQSS ),
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.c = ( cDeemphasisON |
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cDeemphasis75 |
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cTopDefault),
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.e = ( cGating_36 |
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cAudioIF_4_5 |
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cVideoIF_45_75 ),
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},{
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.std = V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
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.name = "SECAM-BGH",
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.b = ( cNegativeFmTV |
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cQSS ),
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.c = ( cTopDefault),
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.e = ( cAudioIF_5_5 |
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cVideoIF_38_90 ),
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},{
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.std = V4L2_STD_SECAM_L,
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.name = "SECAM-L",
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.b = ( cPositiveAmTV |
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cQSS ),
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.c = ( cTopDefault),
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.e = ( cGating_36 |
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cAudioIF_6_5 |
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cVideoIF_38_90 ),
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},{
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.std = V4L2_STD_SECAM_LC,
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.name = "SECAM-L'",
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.b = ( cOutputPort2Inactive |
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cPositiveAmTV |
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cQSS ),
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.c = ( cTopDefault),
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.e = ( cGating_36 |
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cAudioIF_6_5 |
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cVideoIF_33_90 ),
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},{
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.std = V4L2_STD_SECAM_DK,
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.name = "SECAM-DK",
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.b = ( cNegativeFmTV |
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cQSS ),
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.c = ( cDeemphasisON |
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cDeemphasis50 |
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cTopDefault),
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.e = ( cGating_36 |
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cAudioIF_6_5 |
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cVideoIF_38_90 ),
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},{
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.std = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
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.name = "NTSC-M",
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.b = ( cNegativeFmTV |
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cQSS ),
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.c = ( cDeemphasisON |
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cDeemphasis75 |
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cTopDefault),
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.e = ( cGating_36 |
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cAudioIF_4_5 |
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cVideoIF_45_75 ),
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},{
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.std = V4L2_STD_NTSC_M_JP,
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.name = "NTSC-M-JP",
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.b = ( cNegativeFmTV |
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cQSS ),
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.c = ( cDeemphasisON |
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cDeemphasis50 |
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cTopDefault),
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.e = ( cGating_36 |
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cAudioIF_4_5 |
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cVideoIF_58_75 ),
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}
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};
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static struct tvnorm radio_stereo = {
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.name = "Radio Stereo",
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.b = ( cFmRadio |
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cQSS ),
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.c = ( cDeemphasisOFF |
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cAudioGain6 |
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cTopDefault),
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.e = ( cTunerGainLow |
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cAudioIF_5_5 |
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cRadioIF_38_90 ),
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};
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static struct tvnorm radio_mono = {
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.name = "Radio Mono",
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.b = ( cFmRadio |
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cQSS ),
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.c = ( cDeemphasisON |
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cDeemphasis75 |
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cTopDefault),
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.e = ( cTunerGainLow |
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cAudioIF_5_5 |
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cRadioIF_38_90 ),
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};
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/* ---------------------------------------------------------------------- */
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static void dump_read_message(struct dvb_frontend *fe, unsigned char *buf)
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{
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struct tda9887_priv *priv = fe->analog_demod_priv;
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static char *afc[16] = {
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"- 12.5 kHz",
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"- 37.5 kHz",
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"- 62.5 kHz",
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"- 87.5 kHz",
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"-112.5 kHz",
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"-137.5 kHz",
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"-162.5 kHz",
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"-187.5 kHz [min]",
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"+187.5 kHz [max]",
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"+162.5 kHz",
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"+137.5 kHz",
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"+112.5 kHz",
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"+ 87.5 kHz",
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"+ 62.5 kHz",
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"+ 37.5 kHz",
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"+ 12.5 kHz",
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};
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tuner_info("read: 0x%2x\n", buf[0]);
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tuner_info(" after power on : %s\n", (buf[0] & 0x01) ? "yes" : "no");
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tuner_info(" afc : %s\n", afc[(buf[0] >> 1) & 0x0f]);
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tuner_info(" fmif level : %s\n", (buf[0] & 0x20) ? "high" : "low");
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tuner_info(" afc window : %s\n", (buf[0] & 0x40) ? "in" : "out");
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tuner_info(" vfi level : %s\n", (buf[0] & 0x80) ? "high" : "low");
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}
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static void dump_write_message(struct dvb_frontend *fe, unsigned char *buf)
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{
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struct tda9887_priv *priv = fe->analog_demod_priv;
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static char *sound[4] = {
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"AM/TV",
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"FM/radio",
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"FM/TV",
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"FM/radio"
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};
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static char *adjust[32] = {
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"-16", "-15", "-14", "-13", "-12", "-11", "-10", "-9",
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"-8", "-7", "-6", "-5", "-4", "-3", "-2", "-1",
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"0", "+1", "+2", "+3", "+4", "+5", "+6", "+7",
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"+8", "+9", "+10", "+11", "+12", "+13", "+14", "+15"
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};
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static char *deemph[4] = {
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"no", "no", "75", "50"
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};
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static char *carrier[4] = {
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"4.5 MHz",
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"5.5 MHz",
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"6.0 MHz",
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"6.5 MHz / AM"
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};
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static char *vif[8] = {
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"58.75 MHz",
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"45.75 MHz",
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"38.9 MHz",
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"38.0 MHz",
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"33.9 MHz",
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"33.4 MHz",
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"45.75 MHz + pin13",
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"38.9 MHz + pin13",
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};
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static char *rif[4] = {
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"44 MHz",
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"52 MHz",
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"52 MHz",
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"44 MHz",
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};
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tuner_info("write: byte B 0x%02x\n", buf[1]);
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tuner_info(" B0 video mode : %s\n",
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(buf[1] & 0x01) ? "video trap" : "sound trap");
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tuner_info(" B1 auto mute fm : %s\n",
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(buf[1] & 0x02) ? "yes" : "no");
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tuner_info(" B2 carrier mode : %s\n",
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(buf[1] & 0x04) ? "QSS" : "Intercarrier");
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tuner_info(" B3-4 tv sound/radio : %s\n",
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sound[(buf[1] & 0x18) >> 3]);
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tuner_info(" B5 force mute audio: %s\n",
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(buf[1] & 0x20) ? "yes" : "no");
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tuner_info(" B6 output port 1 : %s\n",
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(buf[1] & 0x40) ? "high (inactive)" : "low (active)");
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tuner_info(" B7 output port 2 : %s\n",
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(buf[1] & 0x80) ? "high (inactive)" : "low (active)");
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tuner_info("write: byte C 0x%02x\n", buf[2]);
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tuner_info(" C0-4 top adjustment : %s dB\n",
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adjust[buf[2] & 0x1f]);
|
||
|
|
tuner_info(" C5-6 de-emphasis : %s\n",
|
||
|
|
deemph[(buf[2] & 0x60) >> 5]);
|
||
|
|
tuner_info(" C7 audio gain : %s\n",
|
||
|
|
(buf[2] & 0x80) ? "-6" : "0");
|
||
|
|
|
||
|
|
tuner_info("write: byte E 0x%02x\n", buf[3]);
|
||
|
|
tuner_info(" E0-1 sound carrier : %s\n",
|
||
|
|
carrier[(buf[3] & 0x03)]);
|
||
|
|
tuner_info(" E6 l pll gating : %s\n",
|
||
|
|
(buf[3] & 0x40) ? "36" : "13");
|
||
|
|
|
||
|
|
if (buf[1] & 0x08) {
|
||
|
|
/* radio */
|
||
|
|
tuner_info(" E2-4 video if : %s\n",
|
||
|
|
rif[(buf[3] & 0x0c) >> 2]);
|
||
|
|
tuner_info(" E7 vif agc output : %s\n",
|
||
|
|
(buf[3] & 0x80)
|
||
|
|
? ((buf[3] & 0x10) ? "fm-agc radio" :
|
||
|
|
"sif-agc radio")
|
||
|
|
: "fm radio carrier afc");
|
||
|
|
} else {
|
||
|
|
/* video */
|
||
|
|
tuner_info(" E2-4 video if : %s\n",
|
||
|
|
vif[(buf[3] & 0x1c) >> 2]);
|
||
|
|
tuner_info(" E5 tuner gain : %s\n",
|
||
|
|
(buf[3] & 0x80)
|
||
|
|
? ((buf[3] & 0x20) ? "external" : "normal")
|
||
|
|
: ((buf[3] & 0x20) ? "minimum" : "normal"));
|
||
|
|
tuner_info(" E7 vif agc output : %s\n",
|
||
|
|
(buf[3] & 0x80) ? ((buf[3] & 0x20)
|
||
|
|
? "pin3 port, pin22 vif agc out"
|
||
|
|
: "pin22 port, pin3 vif acg ext in")
|
||
|
|
: "pin3+pin22 port");
|
||
|
|
}
|
||
|
|
tuner_info("--\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ---------------------------------------------------------------------- */
|
||
|
|
|
||
|
|
static int tda9887_set_tvnorm(struct dvb_frontend *fe)
|
||
|
|
{
|
||
|
|
struct tda9887_priv *priv = fe->analog_demod_priv;
|
||
|
|
struct tvnorm *norm = NULL;
|
||
|
|
char *buf = priv->data;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
if (priv->mode == V4L2_TUNER_RADIO) {
|
||
|
|
if (priv->audmode == V4L2_TUNER_MODE_MONO)
|
||
|
|
norm = &radio_mono;
|
||
|
|
else
|
||
|
|
norm = &radio_stereo;
|
||
|
|
} else {
|
||
|
|
for (i = 0; i < ARRAY_SIZE(tvnorms); i++) {
|
||
|
|
if (tvnorms[i].std & priv->std) {
|
||
|
|
norm = tvnorms+i;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (NULL == norm) {
|
||
|
|
tuner_dbg("Unsupported tvnorm entry - audio muted\n");
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
tuner_dbg("configure for: %s\n", norm->name);
|
||
|
|
buf[1] = norm->b;
|
||
|
|
buf[2] = norm->c;
|
||
|
|
buf[3] = norm->e;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static unsigned int port1 = UNSET;
|
||
|
|
static unsigned int port2 = UNSET;
|
||
|
|
static unsigned int qss = UNSET;
|
||
|
|
static unsigned int adjust = UNSET;
|
||
|
|
|
||
|
|
module_param(port1, int, 0644);
|
||
|
|
module_param(port2, int, 0644);
|
||
|
|
module_param(qss, int, 0644);
|
||
|
|
module_param(adjust, int, 0644);
|
||
|
|
|
||
|
|
static int tda9887_set_insmod(struct dvb_frontend *fe)
|
||
|
|
{
|
||
|
|
struct tda9887_priv *priv = fe->analog_demod_priv;
|
||
|
|
char *buf = priv->data;
|
||
|
|
|
||
|
|
if (UNSET != port1) {
|
||
|
|
if (port1)
|
||
|
|
buf[1] |= cOutputPort1Inactive;
|
||
|
|
else
|
||
|
|
buf[1] &= ~cOutputPort1Inactive;
|
||
|
|
}
|
||
|
|
if (UNSET != port2) {
|
||
|
|
if (port2)
|
||
|
|
buf[1] |= cOutputPort2Inactive;
|
||
|
|
else
|
||
|
|
buf[1] &= ~cOutputPort2Inactive;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (UNSET != qss) {
|
||
|
|
if (qss)
|
||
|
|
buf[1] |= cQSS;
|
||
|
|
else
|
||
|
|
buf[1] &= ~cQSS;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (adjust < 0x20) {
|
||
|
|
buf[2] &= ~cTopMask;
|
||
|
|
buf[2] |= adjust;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int tda9887_do_config(struct dvb_frontend *fe)
|
||
|
|
{
|
||
|
|
struct tda9887_priv *priv = fe->analog_demod_priv;
|
||
|
|
char *buf = priv->data;
|
||
|
|
|
||
|
|
if (priv->config & TDA9887_PORT1_ACTIVE)
|
||
|
|
buf[1] &= ~cOutputPort1Inactive;
|
||
|
|
if (priv->config & TDA9887_PORT1_INACTIVE)
|
||
|
|
buf[1] |= cOutputPort1Inactive;
|
||
|
|
if (priv->config & TDA9887_PORT2_ACTIVE)
|
||
|
|
buf[1] &= ~cOutputPort2Inactive;
|
||
|
|
if (priv->config & TDA9887_PORT2_INACTIVE)
|
||
|
|
buf[1] |= cOutputPort2Inactive;
|
||
|
|
|
||
|
|
if (priv->config & TDA9887_QSS)
|
||
|
|
buf[1] |= cQSS;
|
||
|
|
if (priv->config & TDA9887_INTERCARRIER)
|
||
|
|
buf[1] &= ~cQSS;
|
||
|
|
|
||
|
|
if (priv->config & TDA9887_AUTOMUTE)
|
||
|
|
buf[1] |= cAutoMuteFmActive;
|
||
|
|
if (priv->config & TDA9887_DEEMPHASIS_MASK) {
|
||
|
|
buf[2] &= ~0x60;
|
||
|
|
switch (priv->config & TDA9887_DEEMPHASIS_MASK) {
|
||
|
|
case TDA9887_DEEMPHASIS_NONE:
|
||
|
|
buf[2] |= cDeemphasisOFF;
|
||
|
|
break;
|
||
|
|
case TDA9887_DEEMPHASIS_50:
|
||
|
|
buf[2] |= cDeemphasisON | cDeemphasis50;
|
||
|
|
break;
|
||
|
|
case TDA9887_DEEMPHASIS_75:
|
||
|
|
buf[2] |= cDeemphasisON | cDeemphasis75;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (priv->config & TDA9887_TOP_SET) {
|
||
|
|
buf[2] &= ~cTopMask;
|
||
|
|
buf[2] |= (priv->config >> 8) & cTopMask;
|
||
|
|
}
|
||
|
|
if ((priv->config & TDA9887_INTERCARRIER_NTSC) &&
|
||
|
|
(priv->std & V4L2_STD_NTSC))
|
||
|
|
buf[1] &= ~cQSS;
|
||
|
|
if (priv->config & TDA9887_GATING_18)
|
||
|
|
buf[3] &= ~cGating_36;
|
||
|
|
|
||
|
|
if (priv->mode == V4L2_TUNER_RADIO) {
|
||
|
|
if (priv->config & TDA9887_RIF_41_3) {
|
||
|
|
buf[3] &= ~cVideoIFMask;
|
||
|
|
buf[3] |= cRadioIF_41_30;
|
||
|
|
}
|
||
|
|
if (priv->config & TDA9887_GAIN_NORMAL)
|
||
|
|
buf[3] &= ~cTunerGainLow;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ---------------------------------------------------------------------- */
|
||
|
|
|
||
|
|
static int tda9887_status(struct dvb_frontend *fe)
|
||
|
|
{
|
||
|
|
struct tda9887_priv *priv = fe->analog_demod_priv;
|
||
|
|
unsigned char buf[1];
|
||
|
|
int rc;
|
||
|
|
|
||
|
|
rc = tuner_i2c_xfer_recv(&priv->i2c_props, buf, 1);
|
||
|
|
if (rc != 1)
|
||
|
|
tuner_info("i2c i/o error: rc == %d (should be 1)\n", rc);
|
||
|
|
dump_read_message(fe, buf);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void tda9887_configure(struct dvb_frontend *fe)
|
||
|
|
{
|
||
|
|
struct tda9887_priv *priv = fe->analog_demod_priv;
|
||
|
|
int rc;
|
||
|
|
|
||
|
|
memset(priv->data,0,sizeof(priv->data));
|
||
|
|
tda9887_set_tvnorm(fe);
|
||
|
|
|
||
|
|
/* A note on the port settings:
|
||
|
|
These settings tend to depend on the specifics of the board.
|
||
|
|
By default they are set to inactive (bit value 1) by this driver,
|
||
|
|
overwriting any changes made by the tvnorm. This means that it
|
||
|
|
is the responsibility of the module using the tda9887 to set
|
||
|
|
these values in case of changes in the tvnorm.
|
||
|
|
In many cases port 2 should be made active (0) when selecting
|
||
|
|
SECAM-L, and port 2 should remain inactive (1) for SECAM-L'.
|
||
|
|
|
||
|
|
For the other standards the tda9887 application note says that
|
||
|
|
the ports should be set to active (0), but, again, that may
|
||
|
|
differ depending on the precise hardware configuration.
|
||
|
|
*/
|
||
|
|
priv->data[1] |= cOutputPort1Inactive;
|
||
|
|
priv->data[1] |= cOutputPort2Inactive;
|
||
|
|
|
||
|
|
tda9887_do_config(fe);
|
||
|
|
tda9887_set_insmod(fe);
|
||
|
|
|
||
|
|
if (priv->standby)
|
||
|
|
priv->data[1] |= cForcedMuteAudioON;
|
||
|
|
|
||
|
|
tuner_dbg("writing: b=0x%02x c=0x%02x e=0x%02x\n",
|
||
|
|
priv->data[1], priv->data[2], priv->data[3]);
|
||
|
|
if (debug > 1)
|
||
|
|
dump_write_message(fe, priv->data);
|
||
|
|
|
||
|
|
if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,priv->data,4)))
|
||
|
|
tuner_info("i2c i/o error: rc == %d (should be 4)\n", rc);
|
||
|
|
|
||
|
|
if (debug > 2) {
|
||
|
|
msleep_interruptible(1000);
|
||
|
|
tda9887_status(fe);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ---------------------------------------------------------------------- */
|
||
|
|
|
||
|
|
static void tda9887_tuner_status(struct dvb_frontend *fe)
|
||
|
|
{
|
||
|
|
struct tda9887_priv *priv = fe->analog_demod_priv;
|
||
|
|
tuner_info("Data bytes: b=0x%02x c=0x%02x e=0x%02x\n",
|
||
|
|
priv->data[1], priv->data[2], priv->data[3]);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int tda9887_get_afc(struct dvb_frontend *fe, s32 *afc)
|
||
|
|
{
|
||
|
|
struct tda9887_priv *priv = fe->analog_demod_priv;
|
||
|
|
static const int AFC_BITS_2_kHz[] = {
|
||
|
|
-12500, -37500, -62500, -97500,
|
||
|
|
-112500, -137500, -162500, -187500,
|
||
|
|
187500, 162500, 137500, 112500,
|
||
|
|
97500 , 62500, 37500 , 12500
|
||
|
|
};
|
||
|
|
__u8 reg = 0;
|
||
|
|
|
||
|
|
if (priv->mode != V4L2_TUNER_RADIO)
|
||
|
|
return 0;
|
||
|
|
if (1 == tuner_i2c_xfer_recv(&priv->i2c_props, ®, 1))
|
||
|
|
*afc = AFC_BITS_2_kHz[(reg >> 1) & 0x0f];
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void tda9887_standby(struct dvb_frontend *fe)
|
||
|
|
{
|
||
|
|
struct tda9887_priv *priv = fe->analog_demod_priv;
|
||
|
|
|
||
|
|
priv->standby = true;
|
||
|
|
|
||
|
|
tda9887_configure(fe);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void tda9887_set_params(struct dvb_frontend *fe,
|
||
|
|
struct analog_parameters *params)
|
||
|
|
{
|
||
|
|
struct tda9887_priv *priv = fe->analog_demod_priv;
|
||
|
|
|
||
|
|
priv->standby = false;
|
||
|
|
priv->mode = params->mode;
|
||
|
|
priv->audmode = params->audmode;
|
||
|
|
priv->std = params->std;
|
||
|
|
tda9887_configure(fe);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int tda9887_set_config(struct dvb_frontend *fe, void *priv_cfg)
|
||
|
|
{
|
||
|
|
struct tda9887_priv *priv = fe->analog_demod_priv;
|
||
|
|
|
||
|
|
priv->config = *(unsigned int *)priv_cfg;
|
||
|
|
tda9887_configure(fe);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void tda9887_release(struct dvb_frontend *fe)
|
||
|
|
{
|
||
|
|
struct tda9887_priv *priv = fe->analog_demod_priv;
|
||
|
|
|
||
|
|
mutex_lock(&tda9887_list_mutex);
|
||
|
|
|
||
|
|
if (priv)
|
||
|
|
hybrid_tuner_release_state(priv);
|
||
|
|
|
||
|
|
mutex_unlock(&tda9887_list_mutex);
|
||
|
|
|
||
|
|
fe->analog_demod_priv = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct analog_demod_ops tda9887_ops = {
|
||
|
|
.info = {
|
||
|
|
.name = "tda9887",
|
||
|
|
},
|
||
|
|
.set_params = tda9887_set_params,
|
||
|
|
.standby = tda9887_standby,
|
||
|
|
.tuner_status = tda9887_tuner_status,
|
||
|
|
.get_afc = tda9887_get_afc,
|
||
|
|
.release = tda9887_release,
|
||
|
|
.set_config = tda9887_set_config,
|
||
|
|
};
|
||
|
|
|
||
|
|
struct dvb_frontend *tda9887_attach(struct dvb_frontend *fe,
|
||
|
|
struct i2c_adapter *i2c_adap,
|
||
|
|
u8 i2c_addr)
|
||
|
|
{
|
||
|
|
struct tda9887_priv *priv = NULL;
|
||
|
|
int instance;
|
||
|
|
|
||
|
|
mutex_lock(&tda9887_list_mutex);
|
||
|
|
|
||
|
|
instance = hybrid_tuner_request_state(struct tda9887_priv, priv,
|
||
|
|
hybrid_tuner_instance_list,
|
||
|
|
i2c_adap, i2c_addr, "tda9887");
|
||
|
|
switch (instance) {
|
||
|
|
case 0:
|
||
|
|
mutex_unlock(&tda9887_list_mutex);
|
||
|
|
return NULL;
|
||
|
|
case 1:
|
||
|
|
fe->analog_demod_priv = priv;
|
||
|
|
priv->standby = true;
|
||
|
|
tuner_info("tda988[5/6/7] found\n");
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
fe->analog_demod_priv = priv;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
mutex_unlock(&tda9887_list_mutex);
|
||
|
|
|
||
|
|
memcpy(&fe->ops.analog_ops, &tda9887_ops,
|
||
|
|
sizeof(struct analog_demod_ops));
|
||
|
|
|
||
|
|
return fe;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(tda9887_attach);
|
||
|
|
|
||
|
|
MODULE_LICENSE("GPL");
|