428261197a
Tested by ajacoutot@, krw@, shadchin@ and jasper@ on various configurations including multihead with both zaphod and xrandr.
105 lines
2.4 KiB
C
105 lines
2.4 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 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) return NULL;
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switch(addr)
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{
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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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{
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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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{
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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 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 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 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) |
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((t->auto_mute_fm &1)<<1) |
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((t->carrier_mode &1)<<2) |
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((t->modulation &3)<<3) |
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((t->forced_mute_audio &1)<<5) |
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((t->port1 & 1)<<6) |
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((t->port2 &1)<<7); /* B data */
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data[2]=(t->top_adjustment & 0x1f) |
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((t->deemphasis & 0x3)<<5) |
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((t->audio_gain & 1) << 7); /* C data */
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data[3]=(t->standard_sound_carrier & 0x3) |
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((t->standard_video_if & 0x07)<<2) |
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((t->minimum_gain & 0x01)<<5) |
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((t->gating & 0x01)<<6) |
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((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,"TDA9885 setparam: B data: %x, C data: %x, E data: %x\n", data[1], data[2], data[3]);
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}
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void tda9885_dumpstatus(TDA9885Ptr t)
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{
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xf86DrvMsg(t->d.pI2CBus->scrnIndex,X_INFO,"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<8)?-12.5-t->afc_status*25.0:-12.5+(16-t->afc_status)*25.0,
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t->fm_carrier, t->vif_level, t->afc_win, t->afc_win?"VCO in": "VCO out");
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}
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