hw/xfree86/i2c/tda9850.c

   1 #ifdef HAVE_XORG_CONFIG_H
   2 #include <xorg-config.h>
   3 #endif
   4
   5 #include "xf86.h"
   6 #include "xf86i2c.h"
   7 #include "tda9850.h"
   8 #include "i2c_def.h"
   9
  10 #define TDA9850(a,b)    { \
  11                 data[0]=a; \
  12                 data[1]=b; \
  13                 I2C_WriteRead(&(t->d), data, 2, NULL, 0); \
  14                 }
  15
  16 TDA9850Ptr
  17 Detect_tda9850(I2CBusPtr b, I2CSlaveAddr addr)
  18 {
  19     TDA9850Ptr t;
  20     I2CByte a;
  21
  22     t = calloc(1, sizeof(TDA9850Rec));
  23     if (t == NULL)
  24         return NULL;
  25     switch (addr) {
  26     case TDA9850_ADDR_1:
  27         t->d.DevName = "TDA9850 BTSC Stereo+SAP Audio Processor";
  28         break;
  29     default:
  30         t->d.DevName = "Generic TDAxxxx";
  31         break;
  32     }
  33     t->d.SlaveAddr = addr;
  34     t->d.pI2CBus = b;
  35     t->d.NextDev = NULL;
  36     t->d.StartTimeout = b->StartTimeout;
  37     t->d.BitTimeout = b->BitTimeout;
  38     t->d.AcknTimeout = b->AcknTimeout;
  39     t->d.ByteTimeout = b->ByteTimeout;
  40
  41     if (!I2C_WriteRead(&(t->d), NULL, 0, &a, 1)) {
  42         free(t);
  43         return NULL;
  44     }
  45
  46     /* set default parameters */
  47     if (!I2CDevInit(&(t->d))) {
  48         free(t);
  49         return NULL;
  50     }
  51
  52     return t;
  53 }
  54
  55 Bool
  56 tda9850_init(TDA9850Ptr t)
  57 {
  58     t->stereo = 1;
  59     t->sap = 0;
  60     t->mute = TRUE;
  61     t->sap_mute = TRUE;
  62     tda9850_setaudio(t);
  63     return TRUE;
  64 }
  65
  66 void
  67 tda9850_setaudio(TDA9850Ptr t)
  68 {
  69     CARD8 data[2];
  70
  71     if (t->mux == 2) {
  72         TDA9850(0x04, 0x0F);
  73         TDA9850(0x05, 0x0F);
  74         TDA9850(0x06, 0x58);
  75         TDA9850(0x07, 0x07);
  76         TDA9850(0x08, 0x00);
  77         TDA9850(0x09, 0x00);
  78         TDA9850(0x0A, 0x03);
  79     }
  80     else {
  81         TDA9850(0x04, 0x07);
  82         TDA9850(0x05, 0x07);
  83         TDA9850(0x06, 0x58);
  84         TDA9850(0x07, 0x07);
  85         TDA9850(0x08, 0x10);
  86         TDA9850(0x09, 0x10);
  87         TDA9850(0x0A, 0x03);
  88     }
  89
  90     TDA9850(0x06,
  91             (t->stereo << 6) | (t->sap << 7) | (t->mute ? 0x8 : 0) | (t->
  92                                                                       sap_mute ?
  93                                                                       0x10 :
  94                                                                       0x0));
  95 }
  96
  97 void
  98 tda9850_mute(TDA9850Ptr t, Bool mute)
  99 {
 100     CARD8 data[2];
 101
 102     xf86DrvMsg(t->d.pI2CBus->scrnIndex, X_INFO, "tda9850_mute %s\n",
 103                mute ? "on" : "off");
 104     t->mute = mute;
 105
 106     TDA9850(0x06,
 107             (t->stereo << 6) | (t->sap << 7) | (t->mute ? 0x8 : 0x0) | (t->
 108                                                                         sap_mute
 109                                                                         ? 0x10 :
 110                                                                         0x0));
 111 }
 112
 113 void
 114 tda9850_sap_mute(TDA9850Ptr t, Bool sap_mute)
 115 {
 116     CARD8 data[2];
 117
 118     xf86DrvMsg(t->d.pI2CBus->scrnIndex, X_INFO, "tda9850_sap_mute %s\n",
 119                sap_mute ? "on" : "off");
 120     t->sap_mute = sap_mute;
 121
 122     TDA9850(0x06,
 123             (t->stereo << 6) | (t->sap << 7) | (t->mute ? 0x8 : 0x0) | (t->
 124                                                                         sap_mute
 125                                                                         ? 0x10 :
 126                                                                         0x0));
 127 }
 128
 129 CARD16
 130 tda9850_getstatus(TDA9850Ptr t)
 131 {
 132     CARD16 status;
 133
 134     I2C_WriteRead(&(t->d), NULL, 0, (I2CByte *) & status, 2);
 135     return status;
 136 }