498 lines
13 KiB
C
498 lines
13 KiB
C
/*
|
|
*
|
|
* i2c tv tuner chip device driver
|
|
* controls all those simple 4-control-bytes style tuners.
|
|
*/
|
|
#include <linux/delay.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/videodev.h>
|
|
#include <media/tuner.h>
|
|
#include <media/v4l2-common.h>
|
|
|
|
static int offset = 0;
|
|
module_param(offset, int, 0664);
|
|
MODULE_PARM_DESC(offset,"Allows to specify an offset for tuner");
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
/* tv standard selection for Temic 4046 FM5
|
|
this value takes the low bits of control byte 2
|
|
from datasheet Rev.01, Feb.00
|
|
standard BG I L L2 D
|
|
picture IF 38.9 38.9 38.9 33.95 38.9
|
|
sound 1 33.4 32.9 32.4 40.45 32.4
|
|
sound 2 33.16
|
|
NICAM 33.05 32.348 33.05 33.05
|
|
*/
|
|
#define TEMIC_SET_PAL_I 0x05
|
|
#define TEMIC_SET_PAL_DK 0x09
|
|
#define TEMIC_SET_PAL_L 0x0a // SECAM ?
|
|
#define TEMIC_SET_PAL_L2 0x0b // change IF !
|
|
#define TEMIC_SET_PAL_BG 0x0c
|
|
|
|
/* tv tuner system standard selection for Philips FQ1216ME
|
|
this value takes the low bits of control byte 2
|
|
from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
|
|
standard BG DK I L L`
|
|
picture carrier 38.90 38.90 38.90 38.90 33.95
|
|
colour 34.47 34.47 34.47 34.47 38.38
|
|
sound 1 33.40 32.40 32.90 32.40 40.45
|
|
sound 2 33.16 - - - -
|
|
NICAM 33.05 33.05 32.35 33.05 39.80
|
|
*/
|
|
#define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
|
|
#define PHILIPS_SET_PAL_BGDK 0x09
|
|
#define PHILIPS_SET_PAL_L2 0x0a
|
|
#define PHILIPS_SET_PAL_L 0x0b
|
|
|
|
/* system switching for Philips FI1216MF MK2
|
|
from datasheet "1996 Jul 09",
|
|
standard BG L L'
|
|
picture carrier 38.90 38.90 33.95
|
|
colour 34.47 34.37 38.38
|
|
sound 1 33.40 32.40 40.45
|
|
sound 2 33.16 - -
|
|
NICAM 33.05 33.05 39.80
|
|
*/
|
|
#define PHILIPS_MF_SET_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
|
|
#define PHILIPS_MF_SET_PAL_L 0x03 // France
|
|
#define PHILIPS_MF_SET_PAL_L2 0x02 // L'
|
|
|
|
/* Control byte */
|
|
|
|
#define TUNER_RATIO_MASK 0x06 /* Bit cb1:cb2 */
|
|
#define TUNER_RATIO_SELECT_50 0x00
|
|
#define TUNER_RATIO_SELECT_32 0x02
|
|
#define TUNER_RATIO_SELECT_166 0x04
|
|
#define TUNER_RATIO_SELECT_62 0x06
|
|
|
|
#define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */
|
|
|
|
/* Status byte */
|
|
|
|
#define TUNER_POR 0x80
|
|
#define TUNER_FL 0x40
|
|
#define TUNER_MODE 0x38
|
|
#define TUNER_AFC 0x07
|
|
#define TUNER_SIGNAL 0x07
|
|
#define TUNER_STEREO 0x10
|
|
|
|
#define TUNER_PLL_LOCKED 0x40
|
|
#define TUNER_STEREO_MK3 0x04
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
static int tuner_getstatus(struct i2c_client *c)
|
|
{
|
|
unsigned char byte;
|
|
|
|
if (1 != i2c_master_recv(c,&byte,1))
|
|
return 0;
|
|
|
|
return byte;
|
|
}
|
|
|
|
static int tuner_signal(struct i2c_client *c)
|
|
{
|
|
return (tuner_getstatus(c) & TUNER_SIGNAL) << 13;
|
|
}
|
|
|
|
static int tuner_stereo(struct i2c_client *c)
|
|
{
|
|
int stereo, status;
|
|
struct tuner *t = i2c_get_clientdata(c);
|
|
|
|
status = tuner_getstatus (c);
|
|
|
|
switch (t->type) {
|
|
case TUNER_PHILIPS_FM1216ME_MK3:
|
|
case TUNER_PHILIPS_FM1236_MK3:
|
|
case TUNER_PHILIPS_FM1256_IH3:
|
|
stereo = ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
|
|
break;
|
|
default:
|
|
stereo = status & TUNER_STEREO;
|
|
}
|
|
|
|
return stereo;
|
|
}
|
|
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
|
|
{
|
|
struct tuner *t = i2c_get_clientdata(c);
|
|
u8 config, cb, tuneraddr;
|
|
u16 div;
|
|
struct tunertype *tun;
|
|
u8 buffer[4];
|
|
int rc, IFPCoff, i, j;
|
|
enum param_type desired_type;
|
|
struct tuner_params *params;
|
|
|
|
tun = &tuners[t->type];
|
|
|
|
/* IFPCoff = Video Intermediate Frequency - Vif:
|
|
940 =16*58.75 NTSC/J (Japan)
|
|
732 =16*45.75 M/N STD
|
|
704 =16*44 ATSC (at DVB code)
|
|
632 =16*39.50 I U.K.
|
|
622.4=16*38.90 B/G D/K I, L STD
|
|
592 =16*37.00 D China
|
|
590 =16.36.875 B Australia
|
|
543.2=16*33.95 L' STD
|
|
171.2=16*10.70 FM Radio (at set_radio_freq)
|
|
*/
|
|
|
|
if (t->std == V4L2_STD_NTSC_M_JP) {
|
|
IFPCoff = 940;
|
|
desired_type = TUNER_PARAM_TYPE_NTSC;
|
|
} else if ((t->std & V4L2_STD_MN) &&
|
|
!(t->std & ~V4L2_STD_MN)) {
|
|
IFPCoff = 732;
|
|
desired_type = TUNER_PARAM_TYPE_NTSC;
|
|
} else if (t->std == V4L2_STD_SECAM_LC) {
|
|
IFPCoff = 543;
|
|
desired_type = TUNER_PARAM_TYPE_SECAM;
|
|
} else {
|
|
IFPCoff = 623;
|
|
desired_type = TUNER_PARAM_TYPE_PAL;
|
|
}
|
|
|
|
for (j = 0; j < tun->count-1; j++) {
|
|
if (desired_type != tun->params[j].type)
|
|
continue;
|
|
break;
|
|
}
|
|
/* use default tuner_params if desired_type not available */
|
|
if (desired_type != tun->params[j].type) {
|
|
tuner_dbg("IFPCoff = %d: tuner_params undefined for tuner %d\n",
|
|
IFPCoff,t->type);
|
|
j = 0;
|
|
}
|
|
params = &tun->params[j];
|
|
|
|
for (i = 0; i < params->count; i++) {
|
|
if (freq > params->ranges[i].limit)
|
|
continue;
|
|
break;
|
|
}
|
|
if (i == params->count) {
|
|
tuner_dbg("TV frequency out of range (%d > %d)",
|
|
freq, params->ranges[i - 1].limit);
|
|
freq = params->ranges[--i].limit;
|
|
}
|
|
config = params->ranges[i].config;
|
|
cb = params->ranges[i].cb;
|
|
/* i == 0 -> VHF_LO
|
|
* i == 1 -> VHF_HI
|
|
* i == 2 -> UHF */
|
|
tuner_dbg("tv: param %d, range %d\n",j,i);
|
|
|
|
div=freq + IFPCoff + offset;
|
|
|
|
tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, Offset=%d.%02d MHz, div=%0d\n",
|
|
freq / 16, freq % 16 * 100 / 16,
|
|
IFPCoff / 16, IFPCoff % 16 * 100 / 16,
|
|
offset / 16, offset % 16 * 100 / 16,
|
|
div);
|
|
|
|
/* tv norm specific stuff for multi-norm tuners */
|
|
switch (t->type) {
|
|
case TUNER_PHILIPS_SECAM: // FI1216MF
|
|
/* 0x01 -> ??? no change ??? */
|
|
/* 0x02 -> PAL BDGHI / SECAM L */
|
|
/* 0x04 -> ??? PAL others / SECAM others ??? */
|
|
cb &= ~0x02;
|
|
if (t->std & V4L2_STD_SECAM)
|
|
cb |= 0x02;
|
|
break;
|
|
|
|
case TUNER_TEMIC_4046FM5:
|
|
cb &= ~0x0f;
|
|
|
|
if (t->std & V4L2_STD_PAL_BG) {
|
|
cb |= TEMIC_SET_PAL_BG;
|
|
|
|
} else if (t->std & V4L2_STD_PAL_I) {
|
|
cb |= TEMIC_SET_PAL_I;
|
|
|
|
} else if (t->std & V4L2_STD_PAL_DK) {
|
|
cb |= TEMIC_SET_PAL_DK;
|
|
|
|
} else if (t->std & V4L2_STD_SECAM_L) {
|
|
cb |= TEMIC_SET_PAL_L;
|
|
|
|
}
|
|
break;
|
|
|
|
case TUNER_PHILIPS_FQ1216ME:
|
|
cb &= ~0x0f;
|
|
|
|
if (t->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
|
|
cb |= PHILIPS_SET_PAL_BGDK;
|
|
|
|
} else if (t->std & V4L2_STD_PAL_I) {
|
|
cb |= PHILIPS_SET_PAL_I;
|
|
|
|
} else if (t->std & V4L2_STD_SECAM_L) {
|
|
cb |= PHILIPS_SET_PAL_L;
|
|
|
|
}
|
|
break;
|
|
|
|
case TUNER_PHILIPS_ATSC:
|
|
/* 0x00 -> ATSC antenna input 1 */
|
|
/* 0x01 -> ATSC antenna input 2 */
|
|
/* 0x02 -> NTSC antenna input 1 */
|
|
/* 0x03 -> NTSC antenna input 2 */
|
|
cb &= ~0x03;
|
|
if (!(t->std & V4L2_STD_ATSC))
|
|
cb |= 2;
|
|
/* FIXME: input */
|
|
break;
|
|
|
|
case TUNER_MICROTUNE_4042FI5:
|
|
/* Set the charge pump for fast tuning */
|
|
config |= TUNER_CHARGE_PUMP;
|
|
break;
|
|
|
|
case TUNER_PHILIPS_TUV1236D:
|
|
/* 0x40 -> ATSC antenna input 1 */
|
|
/* 0x48 -> ATSC antenna input 2 */
|
|
/* 0x00 -> NTSC antenna input 1 */
|
|
/* 0x08 -> NTSC antenna input 2 */
|
|
buffer[0] = 0x14;
|
|
buffer[1] = 0x00;
|
|
buffer[2] = 0x17;
|
|
buffer[3] = 0x00;
|
|
cb &= ~0x40;
|
|
if (t->std & V4L2_STD_ATSC) {
|
|
cb |= 0x40;
|
|
buffer[1] = 0x04;
|
|
}
|
|
/* set to the correct mode (analog or digital) */
|
|
tuneraddr = c->addr;
|
|
c->addr = 0x0a;
|
|
if (2 != (rc = i2c_master_send(c,&buffer[0],2)))
|
|
tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
|
|
if (2 != (rc = i2c_master_send(c,&buffer[2],2)))
|
|
tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
|
|
c->addr = tuneraddr;
|
|
/* FIXME: input */
|
|
break;
|
|
}
|
|
|
|
if (params->cb_first_if_lower_freq && div < t->last_div) {
|
|
buffer[0] = config;
|
|
buffer[1] = cb;
|
|
buffer[2] = (div>>8) & 0x7f;
|
|
buffer[3] = div & 0xff;
|
|
} else {
|
|
buffer[0] = (div>>8) & 0x7f;
|
|
buffer[1] = div & 0xff;
|
|
buffer[2] = config;
|
|
buffer[3] = cb;
|
|
}
|
|
t->last_div = div;
|
|
if (params->has_tda9887) {
|
|
int config = 0;
|
|
int is_secam_l = (t->std & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)) &&
|
|
!(t->std & ~(V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC));
|
|
|
|
if (t->std == V4L2_STD_SECAM_LC) {
|
|
if (params->port1_active ^ params->port1_invert_for_secam_lc)
|
|
config |= TDA9887_PORT1_ACTIVE;
|
|
if (params->port2_active ^ params->port2_invert_for_secam_lc)
|
|
config |= TDA9887_PORT2_ACTIVE;
|
|
}
|
|
else {
|
|
if (params->port1_active)
|
|
config |= TDA9887_PORT1_ACTIVE;
|
|
if (params->port2_active)
|
|
config |= TDA9887_PORT2_ACTIVE;
|
|
}
|
|
if (params->intercarrier_mode)
|
|
config |= TDA9887_INTERCARRIER;
|
|
if (is_secam_l) {
|
|
if (i == 0 && params->default_top_secam_low)
|
|
config |= TDA9887_TOP(params->default_top_secam_low);
|
|
else if (i == 1 && params->default_top_secam_mid)
|
|
config |= TDA9887_TOP(params->default_top_secam_mid);
|
|
else if (params->default_top_secam_high)
|
|
config |= TDA9887_TOP(params->default_top_secam_high);
|
|
}
|
|
else {
|
|
if (i == 0 && params->default_top_low)
|
|
config |= TDA9887_TOP(params->default_top_low);
|
|
else if (i == 1 && params->default_top_mid)
|
|
config |= TDA9887_TOP(params->default_top_mid);
|
|
else if (params->default_top_high)
|
|
config |= TDA9887_TOP(params->default_top_high);
|
|
}
|
|
if (params->default_pll_gating_18)
|
|
config |= TDA9887_GATING_18;
|
|
i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
|
|
}
|
|
tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
|
|
buffer[0],buffer[1],buffer[2],buffer[3]);
|
|
|
|
if (4 != (rc = i2c_master_send(c,buffer,4)))
|
|
tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
|
|
|
|
switch (t->type) {
|
|
case TUNER_LG_TDVS_H06XF:
|
|
/* Set the Auxiliary Byte. */
|
|
buffer[0] = buffer[2];
|
|
buffer[0] &= ~0x20;
|
|
buffer[0] |= 0x18;
|
|
buffer[1] = 0x20;
|
|
tuner_dbg("tv 0x%02x 0x%02x\n",buffer[0],buffer[1]);
|
|
|
|
if (2 != (rc = i2c_master_send(c,buffer,2)))
|
|
tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
|
|
break;
|
|
case TUNER_MICROTUNE_4042FI5:
|
|
{
|
|
// FIXME - this may also work for other tuners
|
|
unsigned long timeout = jiffies + msecs_to_jiffies(1);
|
|
u8 status_byte = 0;
|
|
|
|
/* Wait until the PLL locks */
|
|
for (;;) {
|
|
if (time_after(jiffies,timeout))
|
|
return;
|
|
if (1 != (rc = i2c_master_recv(c,&status_byte,1))) {
|
|
tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",rc);
|
|
break;
|
|
}
|
|
if (status_byte & TUNER_PLL_LOCKED)
|
|
break;
|
|
udelay(10);
|
|
}
|
|
|
|
/* Set the charge pump for optimized phase noise figure */
|
|
config &= ~TUNER_CHARGE_PUMP;
|
|
buffer[0] = (div>>8) & 0x7f;
|
|
buffer[1] = div & 0xff;
|
|
buffer[2] = config;
|
|
buffer[3] = cb;
|
|
tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
|
|
buffer[0],buffer[1],buffer[2],buffer[3]);
|
|
|
|
if (4 != (rc = i2c_master_send(c,buffer,4)))
|
|
tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
|
|
{
|
|
struct tunertype *tun;
|
|
struct tuner *t = i2c_get_clientdata(c);
|
|
u8 buffer[4];
|
|
u16 div;
|
|
int rc, j;
|
|
enum param_type desired_type = TUNER_PARAM_TYPE_RADIO;
|
|
struct tuner_params *params;
|
|
|
|
tun = &tuners[t->type];
|
|
|
|
for (j = 0; j < tun->count-1; j++) {
|
|
if (desired_type != tun->params[j].type)
|
|
continue;
|
|
break;
|
|
}
|
|
/* use default tuner_params if desired_type not available */
|
|
if (desired_type != tun->params[j].type)
|
|
j = 0;
|
|
|
|
div = (20 * freq / 16000) + (int)(20*10.7); /* IF 10.7 MHz */
|
|
params = &tun->params[j];
|
|
buffer[2] = (params->ranges[0].config & ~TUNER_RATIO_MASK) | TUNER_RATIO_SELECT_50; /* 50 kHz step */
|
|
|
|
switch (t->type) {
|
|
case TUNER_TENA_9533_DI:
|
|
case TUNER_YMEC_TVF_5533MF:
|
|
tuner_dbg ("This tuner doesn't have FM. Most cards has a TEA5767 for FM\n");
|
|
return;
|
|
case TUNER_PHILIPS_FM1216ME_MK3:
|
|
case TUNER_PHILIPS_FM1236_MK3:
|
|
case TUNER_PHILIPS_FMD1216ME_MK3:
|
|
buffer[3] = 0x19;
|
|
break;
|
|
case TUNER_TNF_5335MF:
|
|
buffer[3] = 0x11;
|
|
break;
|
|
case TUNER_PHILIPS_FM1256_IH3:
|
|
div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
|
|
buffer[3] = 0x19;
|
|
break;
|
|
case TUNER_LG_PAL_FM:
|
|
buffer[3] = 0xa5;
|
|
break;
|
|
case TUNER_MICROTUNE_4049FM5:
|
|
div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
|
|
buffer[3] = 0xa4;
|
|
break;
|
|
default:
|
|
buffer[3] = 0xa4;
|
|
break;
|
|
}
|
|
if (params->cb_first_if_lower_freq && div < t->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]);
|
|
t->last_div = div;
|
|
|
|
if (params->has_tda9887) {
|
|
int config = 0;
|
|
if (params->port1_active && !params->port1_fm_high_sensitivity)
|
|
config |= TDA9887_PORT1_ACTIVE;
|
|
if (params->port2_active && !params->port2_fm_high_sensitivity)
|
|
config |= TDA9887_PORT2_ACTIVE;
|
|
if (params->intercarrier_mode)
|
|
config |= TDA9887_INTERCARRIER;
|
|
/* if (params->port1_set_for_fm_mono)
|
|
config &= ~TDA9887_PORT1_ACTIVE;*/
|
|
i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
|
|
}
|
|
if (4 != (rc = i2c_master_send(c,buffer,4)))
|
|
tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
|
|
}
|
|
|
|
int default_tuner_init(struct i2c_client *c)
|
|
{
|
|
struct tuner *t = i2c_get_clientdata(c);
|
|
|
|
tuner_info("type set to %d (%s)\n",
|
|
t->type, tuners[t->type].name);
|
|
strlcpy(c->name, tuners[t->type].name, sizeof(c->name));
|
|
|
|
t->set_tv_freq = default_set_tv_freq;
|
|
t->set_radio_freq = default_set_radio_freq;
|
|
t->has_signal = tuner_signal;
|
|
t->is_stereo = tuner_stereo;
|
|
t->standby = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
|
* ---------------------------------------------------------------------------
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|