101 lines
2.8 KiB
C
101 lines
2.8 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 "xf86.h"
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#include "xf86i2c.h"
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#include "tda9885.h"
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#include "i2c_def.h"
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TDA9885Ptr
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Detect_tda9885(I2CBusPtr b, I2CSlaveAddr addr)
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{
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TDA9885Ptr t;
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I2CByte a;
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t = calloc(1, sizeof(TDA9885Rec));
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if (t == NULL)
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return NULL;
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switch (addr) {
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case TDA9885_ADDR_1:
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case TDA9885_ADDR_2:
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case TDA9885_ADDR_3:
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case TDA9885_ADDR_4:
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t->d.DevName = "TDA9885 Alignment-free IF-PLL";
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break;
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default:
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t->d.DevName = "Generic TDAxxxx";
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break;
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}
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t->d.SlaveAddr = addr;
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t->d.pI2CBus = b;
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t->d.NextDev = NULL;
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t->d.StartTimeout = b->StartTimeout;
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t->d.BitTimeout = b->BitTimeout;
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t->d.AcknTimeout = b->AcknTimeout;
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t->d.ByteTimeout = b->ByteTimeout;
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if (!I2C_WriteRead(&(t->d), NULL, 0, &a, 1)) {
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free(t);
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return NULL;
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}
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/* set default parameters */
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if (!I2CDevInit(&(t->d))) {
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free(t);
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return NULL;
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}
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return t;
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}
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Bool
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tda9885_init(TDA9885Ptr t)
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{
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t->forced_mute_audio = 1;
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return TRUE;
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}
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void
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tda9885_getstatus(TDA9885Ptr t)
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{
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CARD8 value;
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I2C_WriteRead(&(t->d), NULL, 0, &value, 1);
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t->after_reset = value & 1;
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t->afc_status = (value >> 1) & 0xf;
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t->fm_carrier = (value >> 5) & 1;
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t->vif_level = (value >> 6) & 1;
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t->afc_win = (value >> 7) & 1;
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}
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void
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tda9885_setparameters(TDA9885Ptr t)
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{
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CARD8 data[4];
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data[0] = 0; /* start with subaddress 0 */
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data[1] = (t->sound_trap & 1) | ((t->auto_mute_fm & 1) << 1) | ((t->carrier_mode & 1) << 2) | ((t->modulation & 3) << 3) | ((t->forced_mute_audio & 1) << 5) | ((t->port1 & 1) << 6) | ((t->port2 & 1) << 7); /* B data */
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data[2] = (t->top_adjustment & 0x1f) | ((t->deemphasis & 0x3) << 5) | ((t->audio_gain & 1) << 7); /* C data */
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data[3] = (t->standard_sound_carrier & 0x3) | ((t->standard_video_if & 0x07) << 2) | ((t->minimum_gain & 0x01) << 5) | ((t->gating & 0x01) << 6) | ((t->vif_agc & 0x01) << 7); /* E data */
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I2C_WriteRead(&(t->d), data, 4, NULL, 0);
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xf86DrvMsg(t->d.pI2CBus->scrnIndex, X_INFO,
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"TDA9885 setparam: B data: %x, C data: %x, E data: %x\n",
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data[1], data[2], data[3]);
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}
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void
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tda9885_dumpstatus(TDA9885Ptr t)
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{
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xf86DrvMsg(t->d.pI2CBus->scrnIndex, X_INFO,
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"TDA9885 status: after_reset=%d afc_status=%d (%3.1f kHz off) fm_carrier=%d vif_level=%d afc_win=%d %s\n",
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t->after_reset, t->afc_status,
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(t->afc_status <
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8) ? -12.5 - t->afc_status * 25.0 : -12.5 + (16 -
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t->afc_status) *
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25.0, t->fm_carrier, t->vif_level, t->afc_win,
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t->afc_win ? "VCO in" : "VCO out");
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}
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