628 lines
17 KiB
C
628 lines
17 KiB
C
/*
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* i2c tv tuner chip device driver
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* controls all those simple 4-control-bytes style tuners.
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*
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* This "tuner-simple" module was split apart from the original "tuner" module.
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*/
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/videodev.h>
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#include <media/tuner.h>
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#include <media/v4l2-common.h>
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#include <media/tuner-types.h>
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#include "tuner-i2c.h"
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#include "tuner-simple.h"
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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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#define PREFIX "tuner-simple "
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static int offset = 0;
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module_param(offset, int, 0664);
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MODULE_PARM_DESC(offset,"Allows to specify an offset for tuner");
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/* ---------------------------------------------------------------------- */
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/* tv standard selection for Temic 4046 FM5
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this value takes the low bits of control byte 2
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from datasheet Rev.01, Feb.00
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standard BG I L L2 D
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picture IF 38.9 38.9 38.9 33.95 38.9
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sound 1 33.4 32.9 32.4 40.45 32.4
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sound 2 33.16
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NICAM 33.05 32.348 33.05 33.05
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*/
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#define TEMIC_SET_PAL_I 0x05
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#define TEMIC_SET_PAL_DK 0x09
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#define TEMIC_SET_PAL_L 0x0a // SECAM ?
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#define TEMIC_SET_PAL_L2 0x0b // change IF !
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#define TEMIC_SET_PAL_BG 0x0c
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/* tv tuner system standard selection for Philips FQ1216ME
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this value takes the low bits of control byte 2
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from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
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standard BG DK I L L`
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picture carrier 38.90 38.90 38.90 38.90 33.95
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colour 34.47 34.47 34.47 34.47 38.38
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sound 1 33.40 32.40 32.90 32.40 40.45
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sound 2 33.16 - - - -
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NICAM 33.05 33.05 32.35 33.05 39.80
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*/
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#define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
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#define PHILIPS_SET_PAL_BGDK 0x09
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#define PHILIPS_SET_PAL_L2 0x0a
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#define PHILIPS_SET_PAL_L 0x0b
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/* system switching for Philips FI1216MF MK2
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from datasheet "1996 Jul 09",
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standard BG L L'
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picture carrier 38.90 38.90 33.95
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colour 34.47 34.37 38.38
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sound 1 33.40 32.40 40.45
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sound 2 33.16 - -
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NICAM 33.05 33.05 39.80
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*/
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#define PHILIPS_MF_SET_STD_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
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#define PHILIPS_MF_SET_STD_L 0x03 /* Used on Secam France */
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#define PHILIPS_MF_SET_STD_LC 0x02 /* Used on SECAM L' */
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/* Control byte */
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#define TUNER_RATIO_MASK 0x06 /* Bit cb1:cb2 */
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#define TUNER_RATIO_SELECT_50 0x00
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#define TUNER_RATIO_SELECT_32 0x02
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#define TUNER_RATIO_SELECT_166 0x04
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#define TUNER_RATIO_SELECT_62 0x06
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#define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */
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/* Status byte */
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#define TUNER_POR 0x80
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#define TUNER_FL 0x40
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#define TUNER_MODE 0x38
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#define TUNER_AFC 0x07
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#define TUNER_SIGNAL 0x07
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#define TUNER_STEREO 0x10
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#define TUNER_PLL_LOCKED 0x40
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#define TUNER_STEREO_MK3 0x04
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struct tuner_simple_priv {
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u16 last_div;
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struct tuner_i2c_props i2c_props;
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unsigned int type;
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struct tunertype *tun;
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u32 frequency;
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};
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/* ---------------------------------------------------------------------- */
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static int tuner_getstatus(struct dvb_frontend *fe)
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{
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struct tuner_simple_priv *priv = fe->tuner_priv;
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unsigned char byte;
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if (1 != tuner_i2c_xfer_recv(&priv->i2c_props,&byte,1))
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return 0;
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return byte;
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}
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static int tuner_signal(struct dvb_frontend *fe)
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{
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return (tuner_getstatus(fe) & TUNER_SIGNAL) << 13;
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}
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static int tuner_stereo(struct dvb_frontend *fe)
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{
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struct tuner_simple_priv *priv = fe->tuner_priv;
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int stereo, status;
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status = tuner_getstatus(fe);
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switch (priv->type) {
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case TUNER_PHILIPS_FM1216ME_MK3:
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case TUNER_PHILIPS_FM1236_MK3:
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case TUNER_PHILIPS_FM1256_IH3:
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case TUNER_LG_NTSC_TAPE:
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stereo = ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
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break;
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default:
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stereo = status & TUNER_STEREO;
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}
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return stereo;
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}
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static int simple_get_status(struct dvb_frontend *fe, u32 *status)
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{
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struct tuner_simple_priv *priv = fe->tuner_priv;
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int signal = tuner_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 (tuner_stereo(fe))
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*status |= TUNER_STATUS_STEREO;
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tuner_dbg("tuner-simple: Signal strength: %d\n", signal);
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return 0;
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}
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/* ---------------------------------------------------------------------- */
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static int simple_set_tv_freq(struct dvb_frontend *fe,
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struct analog_parameters *params)
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{
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struct tuner_simple_priv *priv = fe->tuner_priv;
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u8 config, cb, tuneraddr;
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u16 div;
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struct tunertype *tun;
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u8 buffer[4];
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int rc, IFPCoff, i, j;
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enum param_type desired_type;
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struct tuner_params *t_params;
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tun = priv->tun;
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/* IFPCoff = Video Intermediate Frequency - Vif:
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940 =16*58.75 NTSC/J (Japan)
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732 =16*45.75 M/N STD
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704 =16*44 ATSC (at DVB code)
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632 =16*39.50 I U.K.
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622.4=16*38.90 B/G D/K I, L STD
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592 =16*37.00 D China
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590 =16.36.875 B Australia
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543.2=16*33.95 L' STD
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171.2=16*10.70 FM Radio (at set_radio_freq)
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*/
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if (params->std == V4L2_STD_NTSC_M_JP) {
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IFPCoff = 940;
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desired_type = TUNER_PARAM_TYPE_NTSC;
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} else if ((params->std & V4L2_STD_MN) &&
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!(params->std & ~V4L2_STD_MN)) {
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IFPCoff = 732;
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desired_type = TUNER_PARAM_TYPE_NTSC;
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} else if (params->std == V4L2_STD_SECAM_LC) {
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IFPCoff = 543;
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desired_type = TUNER_PARAM_TYPE_SECAM;
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} else {
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IFPCoff = 623;
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desired_type = TUNER_PARAM_TYPE_PAL;
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}
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for (j = 0; j < tun->count-1; j++) {
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if (desired_type != tun->params[j].type)
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continue;
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break;
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}
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/* use default tuner_t_params if desired_type not available */
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if (desired_type != tun->params[j].type) {
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tuner_dbg("IFPCoff = %d: tuner_t_params undefined for tuner %d\n",
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IFPCoff, priv->type);
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j = 0;
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}
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t_params = &tun->params[j];
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for (i = 0; i < t_params->count; i++) {
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if (params->frequency > t_params->ranges[i].limit)
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continue;
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break;
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}
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if (i == t_params->count) {
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tuner_dbg("TV frequency out of range (%d > %d)",
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params->frequency, t_params->ranges[i - 1].limit);
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params->frequency = t_params->ranges[--i].limit;
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}
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config = t_params->ranges[i].config;
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cb = t_params->ranges[i].cb;
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/* i == 0 -> VHF_LO
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* i == 1 -> VHF_HI
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* i == 2 -> UHF */
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tuner_dbg("tv: param %d, range %d\n",j,i);
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div=params->frequency + IFPCoff + offset;
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tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, Offset=%d.%02d MHz, div=%0d\n",
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params->frequency / 16, params->frequency % 16 * 100 / 16,
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IFPCoff / 16, IFPCoff % 16 * 100 / 16,
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offset / 16, offset % 16 * 100 / 16,
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div);
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/* tv norm specific stuff for multi-norm tuners */
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switch (priv->type) {
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case TUNER_PHILIPS_SECAM: // FI1216MF
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/* 0x01 -> ??? no change ??? */
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/* 0x02 -> PAL BDGHI / SECAM L */
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/* 0x04 -> ??? PAL others / SECAM others ??? */
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cb &= ~0x03;
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if (params->std & V4L2_STD_SECAM_L) //also valid for V4L2_STD_SECAM
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cb |= PHILIPS_MF_SET_STD_L;
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else if (params->std & V4L2_STD_SECAM_LC)
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cb |= PHILIPS_MF_SET_STD_LC;
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else /* V4L2_STD_B|V4L2_STD_GH */
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cb |= PHILIPS_MF_SET_STD_BG;
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break;
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case TUNER_TEMIC_4046FM5:
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cb &= ~0x0f;
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if (params->std & V4L2_STD_PAL_BG) {
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cb |= TEMIC_SET_PAL_BG;
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} else if (params->std & V4L2_STD_PAL_I) {
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cb |= TEMIC_SET_PAL_I;
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} else if (params->std & V4L2_STD_PAL_DK) {
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cb |= TEMIC_SET_PAL_DK;
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} else if (params->std & V4L2_STD_SECAM_L) {
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cb |= TEMIC_SET_PAL_L;
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}
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break;
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case TUNER_PHILIPS_FQ1216ME:
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cb &= ~0x0f;
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if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
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cb |= PHILIPS_SET_PAL_BGDK;
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} else if (params->std & V4L2_STD_PAL_I) {
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cb |= PHILIPS_SET_PAL_I;
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} else if (params->std & V4L2_STD_SECAM_L) {
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cb |= PHILIPS_SET_PAL_L;
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}
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break;
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case TUNER_PHILIPS_ATSC:
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/* 0x00 -> ATSC antenna input 1 */
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/* 0x01 -> ATSC antenna input 2 */
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/* 0x02 -> NTSC antenna input 1 */
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/* 0x03 -> NTSC antenna input 2 */
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cb &= ~0x03;
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if (!(params->std & V4L2_STD_ATSC))
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cb |= 2;
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/* FIXME: input */
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break;
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case TUNER_MICROTUNE_4042FI5:
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/* Set the charge pump for fast tuning */
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config |= TUNER_CHARGE_PUMP;
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break;
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case TUNER_PHILIPS_TUV1236D:
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/* 0x40 -> ATSC antenna input 1 */
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/* 0x48 -> ATSC antenna input 2 */
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/* 0x00 -> NTSC antenna input 1 */
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/* 0x08 -> NTSC antenna input 2 */
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buffer[0] = 0x14;
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buffer[1] = 0x00;
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buffer[2] = 0x17;
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buffer[3] = 0x00;
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cb &= ~0x40;
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if (params->std & V4L2_STD_ATSC) {
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cb |= 0x40;
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buffer[1] = 0x04;
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}
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/* set to the correct mode (analog or digital) */
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tuneraddr = priv->i2c_props.addr;
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priv->i2c_props.addr = 0x0a;
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if (2 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,&buffer[0],2)))
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tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
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if (2 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,&buffer[2],2)))
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tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
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priv->i2c_props.addr = tuneraddr;
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/* FIXME: input */
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break;
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}
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if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
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buffer[0] = config;
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buffer[1] = cb;
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buffer[2] = (div>>8) & 0x7f;
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buffer[3] = div & 0xff;
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} else {
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buffer[0] = (div>>8) & 0x7f;
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buffer[1] = div & 0xff;
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buffer[2] = config;
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buffer[3] = cb;
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}
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priv->last_div = div;
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if (t_params->has_tda9887) {
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int config = 0;
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int is_secam_l = (params->std & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)) &&
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!(params->std & ~(V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC));
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if (params->std == V4L2_STD_SECAM_LC) {
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if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
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config |= TDA9887_PORT1_ACTIVE;
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if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
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config |= TDA9887_PORT2_ACTIVE;
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}
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else {
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if (t_params->port1_active)
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config |= TDA9887_PORT1_ACTIVE;
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if (t_params->port2_active)
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config |= TDA9887_PORT2_ACTIVE;
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}
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if (t_params->intercarrier_mode)
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config |= TDA9887_INTERCARRIER;
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if (is_secam_l) {
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if (i == 0 && t_params->default_top_secam_low)
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config |= TDA9887_TOP(t_params->default_top_secam_low);
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else if (i == 1 && t_params->default_top_secam_mid)
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config |= TDA9887_TOP(t_params->default_top_secam_mid);
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else if (t_params->default_top_secam_high)
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config |= TDA9887_TOP(t_params->default_top_secam_high);
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}
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else {
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if (i == 0 && t_params->default_top_low)
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config |= TDA9887_TOP(t_params->default_top_low);
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else if (i == 1 && t_params->default_top_mid)
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config |= TDA9887_TOP(t_params->default_top_mid);
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else if (t_params->default_top_high)
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config |= TDA9887_TOP(t_params->default_top_high);
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}
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if (t_params->default_pll_gating_18)
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config |= TDA9887_GATING_18;
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i2c_clients_command(priv->i2c_props.adap, TDA9887_SET_CONFIG, &config);
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}
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tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
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buffer[0],buffer[1],buffer[2],buffer[3]);
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if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,4)))
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tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
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switch (priv->type) {
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case TUNER_LG_TDVS_H06XF:
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/* Set the Auxiliary Byte. */
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buffer[0] = buffer[2];
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buffer[0] &= ~0x20;
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buffer[0] |= 0x18;
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buffer[1] = 0x20;
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tuner_dbg("tv 0x%02x 0x%02x\n",buffer[0],buffer[1]);
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if (2 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,2)))
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tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
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break;
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case TUNER_MICROTUNE_4042FI5:
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{
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// FIXME - this may also work for other tuners
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unsigned long timeout = jiffies + msecs_to_jiffies(1);
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u8 status_byte = 0;
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/* Wait until the PLL locks */
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for (;;) {
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if (time_after(jiffies,timeout))
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return 0;
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if (1 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props,&status_byte,1))) {
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tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",rc);
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break;
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}
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if (status_byte & TUNER_PLL_LOCKED)
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break;
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udelay(10);
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}
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/* Set the charge pump for optimized phase noise figure */
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config &= ~TUNER_CHARGE_PUMP;
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buffer[0] = (div>>8) & 0x7f;
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buffer[1] = div & 0xff;
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buffer[2] = config;
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buffer[3] = cb;
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tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
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buffer[0],buffer[1],buffer[2],buffer[3]);
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if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,4)))
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tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
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break;
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}
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}
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return 0;
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}
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static int simple_set_radio_freq(struct dvb_frontend *fe,
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struct analog_parameters *params)
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{
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struct tunertype *tun;
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struct tuner_simple_priv *priv = fe->tuner_priv;
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u8 buffer[4];
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u16 div;
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int rc, j;
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struct tuner_params *t_params;
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unsigned int freq = params->frequency;
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tun = priv->tun;
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for (j = tun->count-1; j > 0; j--)
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if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
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break;
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/* default t_params (j=0) will be used if desired type wasn't found */
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t_params = &tun->params[j];
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/* Select Radio 1st IF used */
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switch (t_params->radio_if) {
|
|
case 0: /* 10.7 MHz */
|
|
freq += (unsigned int)(10.7*16000);
|
|
break;
|
|
case 1: /* 33.3 MHz */
|
|
freq += (unsigned int)(33.3*16000);
|
|
break;
|
|
case 2: /* 41.3 MHz */
|
|
freq += (unsigned int)(41.3*16000);
|
|
break;
|
|
default:
|
|
tuner_warn("Unsupported radio_if value %d\n", t_params->radio_if);
|
|
return 0;
|
|
}
|
|
|
|
/* Bandswitch byte */
|
|
switch (priv->type) {
|
|
case TUNER_TENA_9533_DI:
|
|
case TUNER_YMEC_TVF_5533MF:
|
|
tuner_dbg("This tuner doesn't have FM. Most cards have a TEA5767 for FM\n");
|
|
return 0;
|
|
case TUNER_PHILIPS_FM1216ME_MK3:
|
|
case TUNER_PHILIPS_FM1236_MK3:
|
|
case TUNER_PHILIPS_FMD1216ME_MK3:
|
|
case TUNER_LG_NTSC_TAPE:
|
|
case TUNER_PHILIPS_FM1256_IH3:
|
|
buffer[3] = 0x19;
|
|
break;
|
|
case TUNER_TNF_5335MF:
|
|
buffer[3] = 0x11;
|
|
break;
|
|
case TUNER_LG_PAL_FM:
|
|
buffer[3] = 0xa5;
|
|
break;
|
|
case TUNER_THOMSON_DTT761X:
|
|
buffer[3] = 0x39;
|
|
break;
|
|
case TUNER_MICROTUNE_4049FM5:
|
|
default:
|
|
buffer[3] = 0xa4;
|
|
break;
|
|
}
|
|
|
|
buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
|
|
TUNER_RATIO_SELECT_50; /* 50 kHz step */
|
|
|
|
/* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
|
|
freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
|
|
freq * (1/800) */
|
|
div = (freq + 400) / 800;
|
|
|
|
if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
|
|
buffer[0] = buffer[2];
|
|
buffer[1] = buffer[3];
|
|
buffer[2] = (div>>8) & 0x7f;
|
|
buffer[3] = div & 0xff;
|
|
} else {
|
|
buffer[0] = (div>>8) & 0x7f;
|
|
buffer[1] = div & 0xff;
|
|
}
|
|
|
|
tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
|
|
buffer[0],buffer[1],buffer[2],buffer[3]);
|
|
priv->last_div = div;
|
|
|
|
if (t_params->has_tda9887) {
|
|
int config = 0;
|
|
if (t_params->port1_active && !t_params->port1_fm_high_sensitivity)
|
|
config |= TDA9887_PORT1_ACTIVE;
|
|
if (t_params->port2_active && !t_params->port2_fm_high_sensitivity)
|
|
config |= TDA9887_PORT2_ACTIVE;
|
|
if (t_params->intercarrier_mode)
|
|
config |= TDA9887_INTERCARRIER;
|
|
/* if (t_params->port1_set_for_fm_mono)
|
|
config &= ~TDA9887_PORT1_ACTIVE;*/
|
|
if (t_params->fm_gain_normal)
|
|
config |= TDA9887_GAIN_NORMAL;
|
|
if (t_params->radio_if == 2)
|
|
config |= TDA9887_RIF_41_3;
|
|
i2c_clients_command(priv->i2c_props.adap, TDA9887_SET_CONFIG, &config);
|
|
}
|
|
if (4 != (rc = tuner_i2c_xfer_send(&priv->i2c_props,buffer,4)))
|
|
tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int simple_set_params(struct dvb_frontend *fe,
|
|
struct analog_parameters *params)
|
|
{
|
|
struct tuner_simple_priv *priv = fe->tuner_priv;
|
|
int ret = -EINVAL;
|
|
|
|
switch (params->mode) {
|
|
case V4L2_TUNER_RADIO:
|
|
ret = simple_set_radio_freq(fe, params);
|
|
priv->frequency = params->frequency * 125 / 2;
|
|
break;
|
|
case V4L2_TUNER_ANALOG_TV:
|
|
case V4L2_TUNER_DIGITAL_TV:
|
|
ret = simple_set_tv_freq(fe, params);
|
|
priv->frequency = params->frequency * 62500;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int simple_release(struct dvb_frontend *fe)
|
|
{
|
|
kfree(fe->tuner_priv);
|
|
fe->tuner_priv = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
|
|
{
|
|
struct tuner_simple_priv *priv = fe->tuner_priv;
|
|
*frequency = priv->frequency;
|
|
return 0;
|
|
}
|
|
|
|
static struct dvb_tuner_ops simple_tuner_ops = {
|
|
.set_analog_params = simple_set_params,
|
|
.release = simple_release,
|
|
.get_frequency = simple_get_frequency,
|
|
.get_status = simple_get_status,
|
|
};
|
|
|
|
struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
|
|
struct i2c_adapter *i2c_adap,
|
|
u8 i2c_addr,
|
|
struct simple_tuner_config *cfg)
|
|
{
|
|
struct tuner_simple_priv *priv = NULL;
|
|
|
|
priv = kzalloc(sizeof(struct tuner_simple_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->type = cfg->type;
|
|
priv->tun = cfg->tun;
|
|
|
|
memcpy(&fe->ops.tuner_ops, &simple_tuner_ops, sizeof(struct dvb_tuner_ops));
|
|
|
|
tuner_info("type set to %d (%s)\n", cfg->type, cfg->tun->name);
|
|
|
|
strlcpy(fe->ops.tuner_ops.info.name, cfg->tun->name, sizeof(fe->ops.tuner_ops.info.name));
|
|
|
|
return fe;
|
|
}
|
|
|
|
|
|
EXPORT_SYMBOL_GPL(simple_tuner_attach);
|
|
|
|
MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
|
|
MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
/*
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
|
* ---------------------------------------------------------------------------
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|