687 lines
19 KiB
C
687 lines
19 KiB
C
#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include "xf86.h"
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#include "xf86i2c.h"
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#include "fi1236.h"
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#include "tda9885.h"
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#include "i2c_def.h"
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#define NUM_TUNERS 8
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const FI1236_parameters tuner_parms[NUM_TUNERS] = {
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/* 0 - FI1236 */
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{733, 884, 12820, 2516, 7220, 0xA2, 0x94, 0x34, 0x8e},
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/* !!!based on documentation - it should be:
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{733, 16*55.25, 16*801.25, 16*160, 16*454, 0xA0, 0x90, 0x30, 0x8e}, */
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/* 1 - FI1216 */
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{623, 16 * 48.75, 16 * 855.25, 16 * 170, 16 * 450, 0xA0, 0x90, 0x30, 0x8e},
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/* 2 - TEMIC FN5AL */
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{623, 16 * 45.75, 16 * 855.25, 16 * 169, 16 * 454, 0xA0, 0x90, 0x30, 0x8e},
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/* 3 - MT2032.. */
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{733, 768, 13760, 0, 0, 0, 0, 0, 0},
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/* 4 - FI1246 */
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{623, 16 * 45.75, 16 * 855.25, 16 * 170, 16 * 450, 0xA0, 0x90, 0x30, 0x8e},
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/* 5 - FI1256 */
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{623, 16 * 49.75, 16 * 863.25, 16 * 170, 16 * 450, 0xA0, 0x90, 0x30, 0x8e},
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/* 6 - FI1236W */
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/*{ 733, 884, 12820, 2516, 7220, 0x1, 0x2, 0x4, 0x8e }, */
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{732, 16 * 55.25, 16 * 801.25, 16 * 160, 16 * 442, 0x1, 0x2, 0x4, 0x8e},
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/* 7 - FM1216ME */
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{623, 16 * 48.25, 16 * 863.25, 16 * 158.00, 16 * 442.00, 0x1, 0x2, 0x4, 0x8e}
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};
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FI1236Ptr
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Detect_FI1236(I2CBusPtr b, I2CSlaveAddr addr)
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{
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FI1236Ptr f;
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I2CByte a;
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f = calloc(1, sizeof(FI1236Rec));
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if (f == NULL)
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return NULL;
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f->d.DevName = strdup("FI12xx Tuner");
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f->d.SlaveAddr = addr;
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f->d.pI2CBus = b;
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f->d.NextDev = NULL;
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f->d.StartTimeout = b->StartTimeout;
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f->d.BitTimeout = b->BitTimeout;
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f->d.AcknTimeout = b->AcknTimeout;
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f->d.ByteTimeout = b->ByteTimeout;
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f->type = TUNER_TYPE_FI1236;
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f->afc_timer_installed = FALSE;
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f->last_afc_hint = TUNER_OFF;
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f->video_if = 45.7812;
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if (!I2C_WriteRead(&(f->d), NULL, 0, &a, 1)) {
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free(f);
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return NULL;
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}
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FI1236_set_tuner_type(f, TUNER_TYPE_FI1236);
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if (!I2CDevInit(&(f->d))) {
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free(f);
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return NULL;
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}
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return f;
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}
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static void
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MT2032_dump_parameters(FI1236Ptr f, MT2032_parameters * m)
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{
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xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
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"MT2032: input f_rf=%g f_if1=%g f_if2=%g f_ref=%g f_ifbw=%g f_step=%g\n",
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m->f_rf, m->f_if1, m->f_if2, m->f_ref, m->f_ifbw, m->f_step);
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xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
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"MT2032: computed f_lo1=%g f_lo2=%g LO1I=%d LO2I=%d SEL=%d STEP=%d NUM=%d\n",
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m->f_lo1, m->f_lo2, m->LO1I, m->LO2I, m->SEL, m->STEP, m->NUM);
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}
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static void
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MT2032_getid(FI1236Ptr f)
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{
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CARD8 out[4];
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CARD8 in;
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in = 0x11;
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I2C_WriteRead(&(f->d), (I2CByte *) &in, 1, out, 4);
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xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
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"MT2032: Company code 0x%02x%02x, part code 0x%02x, revision code 0x%02x\n",
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out[0], out[1], out[2], out[3]);
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}
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/* might be buggy */
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#if 0
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static void
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MT2032_shutdown(FI1236Ptr f)
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{
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CARD8 data[10];
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data[0] = 0x00; /* start with register 0x00 */
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data[1] = 0x1A;
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data[2] = 0x44;
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data[3] = 0x20;
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I2C_WriteRead(&(f->d), (I2CByte *) data, 4, NULL, 0);
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data[0] = 0x05; /* now start with register 0x05 */
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data[1] = 0xD7;
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data[2] = 0x14;
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data[3] = 0x05;
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I2C_WriteRead(&(f->d), (I2CByte *) data, 4, NULL, 0);
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data[0] = 0x0B; /* now start with register 0x05 */
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data[1] = 0x8F;
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data[2] = 0x07;
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data[3] = 0x43;
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I2C_WriteRead(&(f->d), (I2CByte *) data, 4, NULL, 0);
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usleep(15000);
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}
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#endif
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static void MT2032_dump_status(FI1236Ptr f);
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static void
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MT2032_init(FI1236Ptr f)
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{
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CARD8 data[10];
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CARD8 value;
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CARD8 xogc = 0x00;
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MT2032_getid(f);
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data[0] = 0x02; /* start with register 0x02 */
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data[1] = 0xFF;
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data[2] = 0x0F;
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data[3] = 0x1F;
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I2C_WriteRead(&(f->d), (I2CByte *) data, 4, NULL, 0);
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data[0] = 0x06; /* now start with register 0x06 */
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data[1] = 0xE4;
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data[2] = 0x8F;
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data[3] = 0xC3;
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data[4] = 0x4E;
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data[5] = 0xEC;
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I2C_WriteRead(&(f->d), (I2CByte *) data, 6, NULL, 0);
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data[0] = 0x0d; /* now start with register 0x0d */
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data[1] = 0x32;
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I2C_WriteRead(&(f->d), (I2CByte *) data, 2, NULL, 0);
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while (1) {
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usleep(15000); /* wait 15 milliseconds */
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data[0] = 0x0e; /* register number 7, status */
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value = 0xFF;
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if (!I2C_WriteRead(&(f->d), (I2CByte *) data, 1, &value, 1))
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xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
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"MT2032: failed to read XOK\n");
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xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
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"MT2032: XOK=%d\n", value & 0x01);
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if (value & 1)
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break;
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data[0] = 0x07;
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if (!I2C_WriteRead(&(f->d), (I2CByte *) data, 1, &value, 1))
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xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
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"MT2032: failed to read XOGC\n");
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xogc = value & 0x7;
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if (xogc == 4)
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break; /* XOGC has reached 4.. stop */
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xogc--;
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xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
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"MT2032: try XOGC=%d\n", xogc);
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usleep(15000);
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data[0] = 0x07; /* register number 7, control byte 2 */
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data[1] = 0x08 | xogc;
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I2C_WriteRead(&(f->d), (I2CByte *) data, 2, NULL, 0);
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}
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f->xogc = xogc;
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/* wait before continuing */
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usleep(15000); /* wait 50 milliseconds */
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MT2032_dump_status(f);
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}
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static int
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MT2032_no_spur_in_band(MT2032_parameters * m)
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{
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int n_max, n1, n2;
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double f_test;
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n_max = 5;
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n1 = 1;
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while (1) {
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n2 = -n1;
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f_test = n1 * (m->f_lo1 - m->f_lo2);
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while (1) {
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n2--;
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f_test = f_test - m->f_lo2;
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xf86DrvMsg(0, X_INFO,
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"testing f_test=%g n1=%d n2=%d f_lo1=%g f_lo2=%g f_if2=%g\n",
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f_test, n1, n2, m->f_lo1, m->f_lo2, m->f_if2);
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xf86DrvMsg(0, X_INFO, "d_f=%g f_ifbw=%g\n",
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fabs(fabs(f_test) - m->f_if2), m->f_ifbw);
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if ((fabs(fabs(f_test) - m->f_if2) * 2.0) <= m->f_ifbw)
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return 0;
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if (n2 <= -n_max)
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break;
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/* this line in the manual is bogus. I say it is faster
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and more correct to go over all harmonics.. */
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#if 0
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if (f_test < (m->f_lo2 - m->f_if2 - m->f_ifbw))
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break;
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#endif
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}
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n1++;
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if (n1 >= n_max)
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return 1;
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}
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}
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static void
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MT2032_calculate_register_settings(MT2032_parameters * m, double f_rf,
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double f_if1, double f_if2, double f_ref,
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double f_ifbw, double f_step)
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{
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int n;
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m->f_rf = f_rf;
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m->f_if1 = f_if1;
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m->f_if2 = f_if2;
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m->f_ref = f_ref;
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m->f_ifbw = f_ifbw;
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m->f_step = f_step;
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m->f_lo1 = f_rf + f_if1;
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m->LO1I = lrint(m->f_lo1 / f_ref);
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m->f_lo1 = f_ref * m->LO1I;
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m->f_lo2 = m->f_lo1 - f_rf - f_if2;
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/* check for spurs */
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n = 1;
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while (n < 3) {
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if (MT2032_no_spur_in_band(m))
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break;
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if (m->f_lo1 < (f_rf + f_if1))
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m->LO1I += n;
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else
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m->LO1I -= n;
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m->f_lo1 = m->LO1I * f_ref;
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m->f_lo2 = m->f_lo1 - f_rf - f_if2;
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n++;
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}
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/* xf86DrvMsg(0, X_INFO, "MT2032: n=%d\n", n); */
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/* select VCO */
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/* m->f_lo1>1100.0 */
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if (m->f_lo1 < 1370.0)
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m->SEL = 4;
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else if (m->f_lo1 < 1530.0)
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m->SEL = 3;
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else if (m->f_lo1 < 1720.0)
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m->SEL = 2;
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else if (m->f_lo1 < 1890.0)
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m->SEL = 1;
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else /* m->f_lo1 < 1958.0 */
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m->SEL = 0;
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/* calculate the rest of the registers */
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m->LO2I = floor(m->f_lo2 / f_ref);
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m->STEP = floor(3780.0 * f_step / f_ref);
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m->NUM = floor(3780.0 * (m->f_lo2 / f_ref - m->LO2I));
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m->NUM = m->STEP * lrint((1.0 * m->NUM) / (1.0 * m->STEP));
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}
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static int
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MT2032_wait_for_lock(FI1236Ptr f)
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{
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int n;
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CARD8 data[10];
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CARD8 value;
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n = 12;
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while (1) {
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data[0] = 0x0e; /* register number 7, status */
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I2C_WriteRead(&(f->d), (I2CByte *) data, 1, &value, 1);
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/* xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
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"MT2032: LO1LK=%d LO2LK=%d\n",
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(value & 0x04)>>2, (value & 0x02)>>1); */
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if ((value & 6) == 6)
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break;
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usleep(1500);
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n--;
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if (n < 0)
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break;
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}
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if (n < 0) {
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xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
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"MT2032: failed to set frequency\n");
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return 0;
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}
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return 1;
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}
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static void
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MT2032_implement_settings(FI1236Ptr f, MT2032_parameters * m)
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{
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CARD8 data[10];
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CARD8 value;
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data[0] = 0x00; /* start with register 0x00 */
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data[1] = (m->LO1I >> 3) - 1;
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data[2] = (m->SEL << 4) | (m->LO1I & 0x7);
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data[3] = 0x86;
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I2C_WriteRead(&(f->d), (I2CByte *) data, 4, NULL, 0);
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data[0] = 0x05; /* start with register 0x05 */
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data[1] = ((m->LO2I & 0x7) << 5) | ((m->LO2I >> 3) - 1);
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if (m->f_rf < 400.0)
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data[2] = 0xe4;
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else
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data[2] = 0xf4;
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I2C_WriteRead(&(f->d), (I2CByte *) data, 3, NULL, 0);
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data[0] = 0x07; /* register number 7, control byte 2 */
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I2C_WriteRead(&(f->d), (I2CByte *) data, 1, &value, 1);
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xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
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"MT2032: using XOGC=%d\n", (value & 0x07));
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data[1] = 8 | (value & 0x7);
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I2C_WriteRead(&(f->d), (I2CByte *) data, 2, NULL, 0);
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data[0] = 0x0b; /* start with register 0x0b */
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data[1] = m->NUM & 0xff;
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data[2] = (1 << 7) | ((m->NUM >> 8) & 0x0f);
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I2C_WriteRead(&(f->d), (I2CByte *) data, 3, NULL, 0);
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MT2032_wait_for_lock(f);
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}
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static void
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MT2032_optimize_VCO(FI1236Ptr f, MT2032_parameters * m)
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{
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CARD8 data[10];
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CARD8 value;
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CARD8 TAD1;
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data[0] = 0x0f; /* register number 7, status */
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I2C_WriteRead(&(f->d), (I2CByte *) data, 1, &value, 1);
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TAD1 = value & 0x07;
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xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
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"MT2032: TAD1=%d SEL=%d\n", TAD1, m->SEL);
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if (TAD1 < 2)
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return;
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if (TAD1 == 2) {
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if (m->SEL == 0)
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return;
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m->SEL--;
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}
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else {
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if (m->SEL >= 4)
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return;
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m->SEL++;
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}
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data[0] = 0x01; /* start with register 1 */
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data[1] = (m->SEL << 4) | (m->LO1I & 0x7);
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I2C_WriteRead(&(f->d), (I2CByte *) data, 2, NULL, 0);
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}
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static int
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FI1236_get_afc_hint(FI1236Ptr f)
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{
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CARD8 out;
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CARD8 AFC;
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if ((f->type == TUNER_TYPE_FM1216ME) || (f->type == TUNER_TYPE_FI1236W)) {
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TDA9885Ptr t = (TDA9885Ptr) f->afc_source;
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if (t == NULL)
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return TUNER_OFF;
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tda9885_getstatus(t);
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tda9885_dumpstatus(t);
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AFC = t->afc_status & 0x0f;
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xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
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"AFC: FI1236_get_afc_hint: %i\n", AFC);
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if (AFC == 0)
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return TUNER_TUNED;
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else if (AFC <= 0x07)
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return TUNER_JUST_BELOW;
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else if (AFC < 0x0f)
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return TUNER_JUST_ABOVE;
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else if (AFC == 0x0f)
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return TUNER_TUNED;
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}
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else {
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I2C_WriteRead(&(f->d), NULL, 0, &out, 1);
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AFC = out & 0x7;
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xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
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"AFC: FI1236_get_afc_hint: %i\n", AFC);
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if (AFC == 2)
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return TUNER_TUNED;
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if (AFC == 3)
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return TUNER_JUST_BELOW;
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if (AFC == 1)
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return TUNER_JUST_ABOVE;
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return TUNER_OFF;
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}
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return TUNER_OFF;
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}
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static int
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MT2032_get_afc_hint(FI1236Ptr f)
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{
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CARD8 in;
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CARD8 out[2];
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CARD8 AFC;
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in = 0x0e;
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I2C_WriteRead(&(f->d), (I2CByte *) &in, 1, out, 2);
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AFC = (out[0] >> 4) & 0x7;
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#if 0
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xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "AFC=%d TAD1=%d TAD2=%d\n",
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AFC, out[1] & 0x7, (out[1] >> 4) & 0x07);
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#endif
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if (AFC == 2)
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return TUNER_TUNED;
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if (AFC == 3)
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return TUNER_JUST_BELOW;
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if (AFC == 1)
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return TUNER_JUST_ABOVE;
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return TUNER_OFF;
|
|
}
|
|
|
|
/* this function is for external use only */
|
|
int
|
|
TUNER_get_afc_hint(FI1236Ptr f)
|
|
{
|
|
if (f->afc_timer_installed)
|
|
return TUNER_STILL_TUNING;
|
|
return f->last_afc_hint;
|
|
}
|
|
|
|
static void
|
|
MT2032_dump_status(FI1236Ptr f)
|
|
{
|
|
CARD8 in;
|
|
CARD8 out[2];
|
|
CARD8 AFC;
|
|
CARD8 LDONrb;
|
|
CARD8 LO1LK, LO2LK, XOK;
|
|
CARD8 TAD2, TAD1;
|
|
|
|
in = 0x0e;
|
|
I2C_WriteRead(&(f->d), (I2CByte *) &in, 1, out, 2);
|
|
XOK = out[0] & 1;
|
|
LO1LK = (out[0] >> 2) & 1;
|
|
LO2LK = (out[0] >> 1) & 1;
|
|
LDONrb = (out[0] >> 3) & 1;
|
|
|
|
AFC = (out[0] >> 4) & 0x7;
|
|
|
|
TAD1 = (out[1] & 0x7);
|
|
TAD2 = (out[1] >> 4) & 0x7;
|
|
|
|
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
|
|
"MT2032: status: XOK=%d LO1LK=%d LO2LK=%d LDONrb=%d AFC=%d TAD1=%d TAD2=%d\n",
|
|
XOK, LO1LK, LO2LK, LDONrb, AFC, TAD1, TAD2);
|
|
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
|
|
"MT2032: status: OSCILLATOR:%s PLL1:%s PLL2:%s\n",
|
|
XOK ? "ok" : "off",
|
|
LO1LK ? "locked" : "off", LO2LK ? "locked" : "off");
|
|
|
|
}
|
|
|
|
static void
|
|
MT2032_tune(FI1236Ptr f, double freq, double step)
|
|
{
|
|
MT2032_parameters m;
|
|
CARD8 data[10];
|
|
int i;
|
|
|
|
/* NTSC IF is 44mhz.. but 733/16=45.8125 and all TDAXXXX docs mention
|
|
45.75, 39, 58.75 and 30. */
|
|
#if 0
|
|
MT2032_calculate_register_settings(&m, freq, 1090.0, 45.125, 5.25, 6.0,
|
|
step);
|
|
MT2032_calculate_register_settings(&m, freq, 1090.0, 45.74, 5.25, 6.0,
|
|
step);
|
|
#endif
|
|
MT2032_calculate_register_settings(&m, freq, 1090.0, f->video_if, 5.25, 3.0,
|
|
step);
|
|
MT2032_dump_parameters(f, &m);
|
|
MT2032_implement_settings(f, &m);
|
|
/* MT2032_dump_parameters(f, &m); */
|
|
for (i = 0; i < 3; i++) {
|
|
MT2032_optimize_VCO(f, &m);
|
|
if (MT2032_wait_for_lock(f)) {
|
|
data[0] = 0x02; /* LO Gain control register 0x02 */
|
|
data[1] = 0x20;
|
|
I2C_WriteRead(&(f->d), (I2CByte *) data, 2, NULL, 0);
|
|
return;
|
|
}
|
|
data[0] = 0x07;
|
|
data[1] = 0x88 | f->xogc;
|
|
I2C_WriteRead(&(f->d), (I2CByte *) data, 2, NULL, 0);
|
|
usleep(15000);
|
|
data[1] = 0x08 | f->xogc;
|
|
I2C_WriteRead(&(f->d), (I2CByte *) data, 2, NULL, 0);
|
|
}
|
|
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
|
|
"MT2032: failed to set frequency\n");
|
|
}
|
|
|
|
void
|
|
FI1236_set_tuner_type(FI1236Ptr f, int type)
|
|
{
|
|
f->type = type;
|
|
if (type >= NUM_TUNERS)
|
|
type = NUM_TUNERS - 1;
|
|
if (type < 0)
|
|
type = 0;
|
|
memcpy(&(f->parm), &(tuner_parms[type]), sizeof(FI1236_parameters));
|
|
f->original_frequency = f->parm.min_freq;
|
|
f->afc_delta = 0;
|
|
if (type == TUNER_TYPE_MT2032) {
|
|
MT2032_init(f);
|
|
return;
|
|
}
|
|
}
|
|
|
|
static CARD32
|
|
AFC_TimerCallback(OsTimerPtr timer, CARD32 time, void *data)
|
|
{
|
|
FI1236Ptr f = (FI1236Ptr) data;
|
|
|
|
if (FI1236_AFC(f))
|
|
return 150;
|
|
else {
|
|
f->afc_timer_installed = FALSE;
|
|
f->afc_count = 0;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
FI1236_tune(FI1236Ptr f, CARD32 frequency)
|
|
{
|
|
CARD16 divider;
|
|
CARD8 data;
|
|
|
|
if (frequency < f->parm.min_freq)
|
|
frequency = f->parm.min_freq;
|
|
if (frequency > f->parm.max_freq)
|
|
frequency = f->parm.max_freq;
|
|
|
|
divider = (f->parm.fcar + (CARD16) frequency) & 0x7fff;
|
|
f->tuner_data.div1 = (CARD8) ((divider >> 8) & 0x7f);
|
|
f->tuner_data.div2 = (CARD8) (divider & 0xff);
|
|
f->tuner_data.control = f->parm.control;
|
|
|
|
if (frequency < f->parm.threshold1)
|
|
f->tuner_data.band = f->parm.band_low;
|
|
else if (frequency < f->parm.threshold2)
|
|
f->tuner_data.band = f->parm.band_mid;
|
|
else
|
|
f->tuner_data.band = f->parm.band_high;
|
|
|
|
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
|
|
"Setting tuner band to %d\n", f->tuner_data.band);
|
|
|
|
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
|
|
"Setting tuner frequency to %d\n", (int) frequency);
|
|
|
|
if ((f->type == TUNER_TYPE_FM1216ME) || (f->type == TUNER_TYPE_FI1236W)) {
|
|
f->tuner_data.aux = 0x20;
|
|
I2C_WriteRead(&(f->d), (I2CByte *) &(f->tuner_data), 5, NULL, 0);
|
|
I2C_WriteRead(&(f->d), NULL, 0, &data, 1);
|
|
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "Tuner status %x\n", data);
|
|
}
|
|
else
|
|
I2C_WriteRead(&(f->d), (I2CByte *) &(f->tuner_data), 4, NULL, 0);
|
|
}
|
|
|
|
void
|
|
TUNER_set_frequency(FI1236Ptr f, CARD32 frequency)
|
|
{
|
|
if (frequency < f->parm.min_freq)
|
|
frequency = f->parm.min_freq;
|
|
if (frequency > f->parm.max_freq)
|
|
frequency = f->parm.max_freq;
|
|
|
|
f->afc_delta = 0;
|
|
f->original_frequency = frequency;
|
|
|
|
if (f->type == TUNER_TYPE_MT2032)
|
|
MT2032_tune(f, (1.0 * frequency) / 16.0, 0.0625);
|
|
else
|
|
FI1236_tune(f, frequency);
|
|
|
|
if (!f->afc_timer_installed) {
|
|
f->afc_timer_installed = TRUE;
|
|
/* RegisterBlockAndWakeupHandlers(FI1236_BlockHandler, AFCWakeup, f); */
|
|
TimerSet(NULL, 0, 300, AFC_TimerCallback, f);
|
|
}
|
|
|
|
}
|
|
|
|
int
|
|
FI1236_AFC(FI1236Ptr f)
|
|
{
|
|
#if 0
|
|
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
|
|
"AFC: f=%p f->count=%d f->original_frequency=%d f->afc_delta=%d\n",
|
|
f, f->afc_count, f->original_frequency, f->afc_delta);
|
|
#endif
|
|
f->afc_count++;
|
|
if (f->type == TUNER_TYPE_MT2032) {
|
|
f->last_afc_hint = MT2032_get_afc_hint(f);
|
|
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
|
|
"AFC: afc_hint=%d\n", f->last_afc_hint);
|
|
if (f->last_afc_hint == TUNER_TUNED)
|
|
return 0;
|
|
if (f->afc_count > 3)
|
|
f->last_afc_hint = TUNER_OFF;
|
|
if (f->last_afc_hint == TUNER_OFF)
|
|
f->afc_delta = 0;
|
|
else
|
|
f->afc_delta += f->last_afc_hint;
|
|
|
|
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
|
|
"AFC: Setting tuner frequency to %g\n",
|
|
(0.5 * (2 * f->original_frequency + f->afc_delta)) / 16.0);
|
|
MT2032_tune(f,
|
|
(1.0 * f->original_frequency + 0.5 * f->afc_delta) / 16.0,
|
|
0.03125);
|
|
if (f->last_afc_hint == TUNER_OFF)
|
|
return 0;
|
|
return 1; /* call me again */
|
|
}
|
|
else {
|
|
f->last_afc_hint = FI1236_get_afc_hint(f);
|
|
if (f->last_afc_hint == TUNER_TUNED) {
|
|
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "AFC: TUNER_TUNNED\n");
|
|
return 0;
|
|
}
|
|
if (f->afc_count > 3)
|
|
f->last_afc_hint = TUNER_OFF;
|
|
|
|
if (f->last_afc_hint == TUNER_OFF)
|
|
f->afc_delta = 0;
|
|
else
|
|
f->afc_delta += f->last_afc_hint;
|
|
|
|
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO,
|
|
"AFC: Setting tuner frequency to %g\n",
|
|
(0.5 * (2 * f->original_frequency + f->afc_delta)) / 16.0);
|
|
FI1236_tune(f, f->original_frequency + f->afc_delta);
|
|
if (f->last_afc_hint == TUNER_OFF)
|
|
return 0;
|
|
return 1; /* call me again */
|
|
}
|
|
return 0; /* done */
|
|
}
|
|
|
|
void
|
|
fi1236_dump_status(FI1236Ptr f)
|
|
{
|
|
if (f->type == TUNER_TYPE_MT2032)
|
|
MT2032_dump_status(f);
|
|
}
|