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Diffstat (limited to 'xorg-server/hw/xfree86/i2c/msp3430.c')
-rw-r--r--xorg-server/hw/xfree86/i2c/msp3430.c726
1 files changed, 726 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/i2c/msp3430.c b/xorg-server/hw/xfree86/i2c/msp3430.c
new file mode 100644
index 000000000..4bd3a7187
--- /dev/null
+++ b/xorg-server/hw/xfree86/i2c/msp3430.c
@@ -0,0 +1,726 @@
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <string.h>
+#include <unistd.h>
+
+#include "xf86.h"
+#include "xf86i2c.h"
+#include "msp3430.h"
+#include "i2c_def.h"
+
+#define CONTROL 0x00
+#define WR_DEM 0x10
+#define RD_DEM 0x11
+#define WR_DSP 0x12
+#define RD_DSP 0x13
+
+
+void InitMSP34xxG(MSP3430Ptr m);
+void InitMSP34x5D(MSP3430Ptr m);
+void CheckModeMSP34x5D(MSP3430Ptr m);
+char *MSP_getProductName (CARD16 product_id);
+void mpause(int milliseconds);
+
+#define __MSPDEBUG__ 0
+
+#if __MSPDEBUG__ > 3
+
+void MSPBeep(MSP3430Ptr m, CARD8 freq);
+#define __MSPBEEP MSPBeep(m,0x14);
+
+#else
+
+#define __MSPBEEP
+#endif
+
+static void SetMSP3430Control(MSP3430Ptr m, CARD8 RegAddress, CARD8 RegValueHigh, CARD8 RegValueLow)
+{
+ I2CByte data[3];
+
+ data[0]=RegAddress;
+ data[1]=RegValueHigh;
+ data[2]=RegValueLow;
+
+ I2C_WriteRead(&(m->d),data,3,NULL,0);
+}
+
+static void SetMSP3430Data(MSP3430Ptr m, CARD8 RegAddress, CARD8 RegSubAddressHigh, CARD8 RegSubAddressLow,
+ CARD8 RegValueHigh, CARD8 RegValueLow)
+{
+ I2CByte data[5];
+#ifdef MSP_DEBUG
+ if(!m->registers_present[RegSubAddressLow]){
+ xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_ERROR, "Attempt to access non-existent register in MSP34xxX: 0x%02x 0x%02x 0x%02x <- 0x%02x 0x%02x\n",
+ RegAddress, RegSubAddressHigh, RegSubAddressLow, RegValueHigh, RegValueLow);
+ }
+#endif
+
+ data[0] = RegAddress;
+ data[1] = RegSubAddressHigh;
+ data[2] = RegSubAddressLow;
+ data[3] = RegValueHigh;
+ data[4] = RegValueLow;
+
+ I2C_WriteRead(&(m->d),data,5,NULL,0);
+}
+
+static void GetMSP3430Data(MSP3430Ptr m, CARD8 RegAddress, CARD8 RegSubAddressHigh, CARD8 RegSubAddressLow,
+ CARD8 *RegValueHigh, CARD8 *RegValueLow)
+{
+ I2CByte send[3];
+ I2CByte receive[2];
+
+ send[0] = RegAddress;
+ send[1] = RegSubAddressHigh;
+ send[2] = RegSubAddressLow;
+
+ I2C_WriteRead(&(m->d), send, 3, receive, 2);
+
+ *RegValueHigh = receive[0];
+ *RegValueLow = receive[1];
+}
+
+#if __MSPDEBUG__ > 2
+static void MSP3430DumpStatus(MSP3430Ptr m)
+{
+CARD8 status_hi, status_lo;
+CARD8 subaddr, data[2];
+
+GetMSP3430Data(m, RD_DEM, 0x02, 0x00, &status_hi, &status_lo);
+xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP34xx: SAP(8)=%d mono/NICAM(7)=%d stereo=%d %s O_1=%d O_0=%d 2nd car=%d 1st car=%d\n",
+ status_hi & 1, (status_lo>>7) & 1, (status_lo>>6)&1,
+ (status_lo>>5)? ( (status_hi>>1)&1? "bad NICAM reception" : "NICAM" ) :
+ ((status_hi>>1)&1 ? "bogus" : "ANALOG FM/AM") ,
+ (status_lo>>4)&1, (status_lo>>3)&1,!( (status_lo>>2)&1), !((status_lo>>1)&1));
+
+GetMSP3430Data(m, RD_DEM, 0x00, 0x7E, &status_hi, &status_lo);
+xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP34xx: standard result=0x%02x%02x\n",
+ status_hi, status_lo);
+subaddr=0x0;
+I2C_WriteRead(&(m->d), &subaddr, 1, data, 2);
+xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP34xx: control=0x%02x%02x\n",
+ data[1], data[0]);
+}
+#endif
+
+/* wrapper */
+void InitMSP3430(MSP3430Ptr m)
+{
+ #if __MSPDEBUG__ > 1
+ xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"InitMSP3430(m->connector=%d, m->standard=%d, m->chip_family=%d)\n",
+ m->connector, m->standard, m->chip_family);
+ #endif
+ switch (m->chip_family) {
+ case MSPFAMILY_34x0G:
+ InitMSP34xxG(m);
+ break;
+ case MSPFAMILY_34x5G:
+ InitMSP34xxG(m);
+ break;
+ case MSPFAMILY_34x5D:
+ InitMSP34x5D(m);
+ break;
+ }
+}
+
+/*-----------------------------------------------------------------
+| common functions for all MSP34xx chips
+|----------------------------------------------------------------*/
+
+MSP3430Ptr DetectMSP3430(I2CBusPtr b, I2CSlaveAddr addr)
+{
+ MSP3430Ptr m;
+ I2CByte a;
+ CARD8 hardware_version, major_revision, product_code, rom_version;
+ Bool supported;
+
+ m = xcalloc(1,sizeof(MSP3430Rec));
+ if(m == NULL)return NULL;
+ m->d.DevName = strdup("MSP34xx");
+ m->d.SlaveAddr = addr;
+ m->d.pI2CBus = b;
+ m->d.NextDev = NULL;
+ m->d.StartTimeout = b->StartTimeout;
+ m->d.BitTimeout = b->BitTimeout;
+ m->d.AcknTimeout = b->AcknTimeout;
+ m->d.ByteTimeout = b->ByteTimeout;
+
+ if(!I2C_WriteRead(&(m->d), NULL, 0, &a, 1))
+ {
+ xfree(m->d.DevName);
+ xfree(m);
+ return NULL;
+ }
+
+
+ m->standard=MSP3430_NTSC;
+ m->connector=MSP3430_CONNECTOR_1;
+ m->mode=MSPMODE_STEREO_A; /*stereo or chanel A if avail. */
+ m->c_format=MSPFORMAT_UNKNOWN;
+ m->c_standard=MSPSTANDARD_UNKNOWN;
+ m->c_matrix=m->c_fmmatrix=m->c_source=0;
+ m->volume=0;
+ m->recheck=FALSE;
+
+ GetMSP3430Data(m, RD_DSP, 0x00, 0x1E, &hardware_version, &major_revision);
+ GetMSP3430Data(m, RD_DSP, 0x00, 0x1F, &product_code, &rom_version);
+ m->hardware_version=hardware_version;
+ m->major_revision=major_revision;
+ m->product_code=product_code;
+ m->rom_version=rom_version;
+
+ m->chip_id=((major_revision << 8) | product_code);
+
+ supported=FALSE;
+ switch (major_revision) {
+ case 4: /* 34xxD */
+ switch (product_code) {
+ case 0x05: /* 3405D */
+ case 0x0A: /* 3410D */
+ case 0x0F: /* 3415D */
+ m->chip_family=MSPFAMILY_34x5D;
+ m->recheck=TRUE;
+ supported=TRUE;
+ break;
+ default:
+ m->chip_family=MSPFAMILY_34x0D;
+ }
+ break;
+ case 7: /* 34xxG */
+ switch(product_code){
+ case 0x00:
+ case 0x0A:
+ case 0x1E:
+ case 0x28:
+ case 0x32:
+ m->chip_family=MSPFAMILY_34x0G;
+ supported=TRUE;
+ break;
+ case 0x0f:
+ case 0x19:
+ case 0x2d:
+ case 0x37:
+ case 0x41:
+ m->chip_family=MSPFAMILY_34x5G;
+ supported=TRUE;
+ #ifdef MSP_DEBUG
+ memset(m->registers_present, 0, 256);
+ #define A(num) m->registers_present[(num)]=1;
+ #define B(num1, num2) memset(&(m->registers_present[num1]), 1, num2-num1);
+ A(0x20)
+ A(0x30)
+ A(0x40)
+ A(0x00)
+ B(0x01, 0x08)
+ B(0x0B, 0x0E)
+ A(0x10)
+ B(0x12,0x14)
+ A(0x16)
+ A(0x29)
+ #undef B
+ #undef A
+ #endif
+ break;
+ default:
+ m->chip_family=MSPFAMILY_UNKNOWN;
+ }
+ break;
+ default:
+ m->chip_family=MSPFAMILY_UNKNOWN;
+ }
+
+ xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "Found %s%s, rom version 0x%02x, chip_id=0x%04x\n",
+ MSP_getProductName(m->chip_id), supported?"":" (unsupported)", rom_version, m->chip_id);
+
+ if (!supported) {
+ xfree(m->d.DevName);
+ xfree(m);
+ return NULL;
+ }
+ if(!I2CDevInit(&(m->d)))
+ {
+ xfree(m->d.DevName);
+ xfree(m);
+ return NULL;
+ }
+
+ return m;
+}
+
+void ResetMSP3430(MSP3430Ptr m)
+{
+ /* Reset the MSP3430 */
+ SetMSP3430Control(m, 0x00, 0x80, 0x00);
+ /* Set it back to normal operation */
+ SetMSP3430Control(m, 0x00, 0x00, 0x00);
+
+ m->c_format=MSPFORMAT_UNKNOWN;
+ m->c_standard=MSPSTANDARD_UNKNOWN;
+ m->c_matrix=m->c_fmmatrix=m->c_source=0;
+ m->volume=0;
+}
+
+void MSP3430SetVolume (MSP3430Ptr m, CARD8 value)
+{
+ CARD8 result;
+#if 0
+ CARD8 old_volume;
+ GetMSP3430Data(m, RD_DSP, 0x00, 0x00, &old_volume, &result);
+ xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP3430 result 0x%02x\n", result);
+#endif
+ /* save an extra Get call */
+ result=0;
+
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x00, value, result);
+
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x07, value, 0);
+ m->volume=value;
+
+#if __MSPDEBUG__ > 2
+ MSP3430DumpStatus(m);
+ __MSPBEEP
+ GetMSP3430Data(m, RD_DSP, 0x00, 0x00, &old_volume, &result);
+ xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP3430 volume 0x%02x\n",value);
+#endif
+}
+
+
+void MSP3430SetSAP (MSP3430Ptr m, int mode)
+{
+ xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "Put actual code to change SAP here\n");
+
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x08, mode & 0xff, 0x20);
+}
+
+
+#if 0
+void MSP3430SetSource(MSP3430Ptr m, CARD8 value)
+{
+ /* Write to DSP, register 0x0008, (loudspeaker channel source/matrix) */
+ /* This sets the source to the TV tuner, for stereo operation */
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x08, value, 0x20);
+}
+#endif
+
+
+char *MSP_getProductName (CARD16 product_id)
+{
+ switch (product_id) {
+ case 0x0400: return "MSP3400D";
+ case 0x040a: return "MSP3410D";
+ case 0x0405: return "MSP3405D";
+ case 0x040f: return "MSP3415D";
+ case 0x0700: return "MSP3400G";
+ case 0x070a: return "MSP3410G";
+ case 0x071e: return "MSP3430G";
+ case 0x0728: return "MSP3440G";
+ case 0x0732: return "MSP3450G";
+ case 0x070f: return "MSP3415G";
+ case 0x0719: return "MSP3425G";
+ case 0x072d: return "MSP3445G";
+ case 0x0737: return "MSP3455G";
+ case 0x0741: return "MSP3465G";
+ }
+ return "MSP - unknown type";
+}
+
+#if __MSPDEBUG__ > 2
+/*puts beep in MSP output
+ freq = 0x01 - 16Hz ... 0x40 - 1kHz ... 0xff - 4kHz
+*/
+void MSPBeep(MSP3430Ptr m, CARD8 freq) {
+ SetMSP3430Data (m, WR_DSP, 0x00, freq, 0x7f, 0x40);
+ mpause(100);
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x14, 0x00, 0x00);
+}
+#endif
+
+void mpause(int milliseconds) {
+ int i,m;
+ m=milliseconds/20;
+ for (i=0;i<m;i++) usleep(20000);
+}
+
+/*-----------------------------------------------------------------
+| specific functions for all MSP34xxG chips
+|----------------------------------------------------------------*/
+
+void InitMSP34xxG(MSP3430Ptr m)
+{
+
+ #if __MSPDEBUG__ > 1
+ xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"InitMSP34xxG(m->connector=%d, m->standard=%d, m->chip_family=%d)\n",
+ m->connector, m->standard, m->chip_family);
+ #endif
+ /* Reset MSP3430 */
+ SetMSP3430Control(m, 0x00, 0x80, 0x00);
+ /* Set it back to normal operation */
+ SetMSP3430Control(m, 0x00, 0x00, 0x00);
+
+ /*set MODUS register */
+ /* bits: 0 - automatic sound detection */
+ /* 1 - enable STATUS change */
+ /* 12 - detect 6.5 Mhz carrier as D/K1, D/K2 or D/K NICAM (does not seem to work ) */
+ /* 13 - detect 4.5 Mhz carrier as BTSC */
+ if ( (m->standard & 0xff) == MSP3430_PAL )
+ {
+ SetMSP3430Data(m, WR_DEM, 0x00, 0x30, 0x30, 0x03|0x08); /* make O_ pins tristate */
+ /* PAL standard */
+ SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x01); /* possibly wrong */
+ } else {
+ SetMSP3430Data(m, WR_DEM, 0x00, 0x30, 0x20, 0x03|0x08);
+ /* standard selection is M-BTSC-Stereo */
+ SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x20);
+ }
+
+ switch(m->connector){
+ case MSP3430_CONNECTOR_1:
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x08, 0x03, 0x20);
+ break;
+ case MSP3430_CONNECTOR_2:
+ /* this has not been checked yet.. could be bogus */
+ /* SCART Input Prescale: 0 dB gain */
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x0d, 0x19, 0x00);
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x08, 0x02, 0x20);
+ break;
+ case MSP3430_CONNECTOR_3:
+ default:
+ /* SCART Input Prescale: 0 dB gain */
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x0d, 0x19, 0x00);
+
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x08, 0x02, 0x20);
+ break;
+ }
+
+ switch(m->standard){
+ case MSP3430_PAL:
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x24, 0x03);
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x10, 0x00, 0x5a);
+ SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x03);
+ /* Set volume to FAST_MUTE. */
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);
+ break;
+ case MSP3430_PAL_DK1:
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x24, 0x03);
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x10, 0x00, 0x5a);
+ SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x04);
+ /* Set volume to FAST_MUTE. */
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);
+ break;
+ case MSP3430_SECAM: /* is this right ? */
+ case MSP3430_NTSC:
+ /* Write to DSP, register 0x000E, (prescale FM/FM matrix) */
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x24, 0x03);
+
+ /* Set volume to FAST_MUTE. */
+ SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);
+ break;
+ }
+
+}
+
+/*-----------------------------------------------------------------
+| specific functions for all MSP34x5D chips
+|----------------------------------------------------------------*/
+
+void InitMSP34x5D(MSP3430Ptr m)
+{
+int count;
+CARD8 high,low;
+CARD16 result,standard;
+CARD16 peak;
+
+
+if (m->c_format==MSPFORMAT_UNKNOWN) ResetMSP3430(m);
+else {
+ /*mute volume*/
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x00, 0x00, 0x00);
+}
+
+
+
+ switch(m->connector){
+ case MSP3430_CONNECTOR_2:
+ case MSP3430_CONNECTOR_3:
+ if (m->c_format!=MSPFORMAT_SCART) {
+ /* SCART Input Prescale: 0 dB gain */
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x0d, 0x19, 0x00);
+ /* this has not been checked yet.. could be bogus */
+ m->c_format=MSPFORMAT_SCART; /*stereo*/
+ }
+ break;
+ case MSP3430_CONNECTOR_1:
+ default:
+
+ switch ( m->standard & 0x00ff ) {
+ case MSP3430_PAL:
+ switch( m->standard ) {
+ case MSP3430_PAL_DK1:
+ standard=MSPSTANDARD_FM_DK1;
+ break;
+/* case MSP3430_PAL_DK2:
+ standard=MSPSTANDARD_FM_DK2;
+ break;
+ case MSP3430_PAL_BG:
+ may be FM stereo (Germany) or FM NICAM (Scandinavia,spain)
+ standard=MSPSTANDARD_AUTO;
+ break;
+*/
+ default:
+ standard=MSPSTANDARD_AUTO;
+ }
+ break;
+ case MSP3430_SECAM:
+ standard=MSPSTANDARD_AUTO;
+ case MSP3430_NTSC:
+ /* Only MSP34x5 supported format - Korean NTSC-M*/
+ standard=MSPSTANDARD_FM_M;
+ default:
+ standard=MSPSTANDARD_AUTO;
+ }
+
+ /*no NICAM support in MSP3410D - force to autodetect*/
+ if ((m->chip_id==0x405) && (standard>=MSPSTANDARD_NICAM_BG))
+ standard=MSPSTANDARD_AUTO;
+
+ if (m->c_standard != standard) {
+
+ SetMSP3430Data (m, WR_DEM, 0x00, 0x20, standard>>8, standard & 0xFF);
+ if (standard==MSPSTANDARD_AUTO) {
+ count = 50; /* time shouldn't exceed 1s, just in case */
+ do {
+ usleep(20000);
+ GetMSP3430Data (m, RD_DEM, 0x00, 0x7e, &high, &low);
+ result = ( high << 8 ) | low;
+ --count;
+ } while( result > 0x07ff && count > 0 );
+
+ if ((result > MSPSTANDARD_AUTO))
+ standard=result;
+ else standard=MSPSTANDARD_UNKNOWN;
+#if __MSPDEBUG__ > 1
+ xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"Detected audio standard: %d\n",result);
+#endif
+ /* result = MSPSTANDARD_NICAM_L can be one of:
+ SECAM_L - MSPSTANDARD_NICAM_L
+ D/K1 - MSPSTANDARD_FM_DK1
+ D/K2 - MSPSTANDARD_FM_DK2
+ D/K-NICAM - MSPSTANDARD_NICAM_DK*/
+ if( standard == MSPSTANDARD_NICAM_L ) {
+ if ((m->standard & 0x00ff)==MSP3430_PAL) {
+ /* force PAL D/K */
+ standard=MSPSTANDARD_FM_DK1;
+ SetMSP3430Data (m, WR_DEM, 0x00, 0x20, standard>>8, standard & 0xFF);
+#if __MSPDEBUG__ > 1
+ xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO, "Detected 6.5MHz carrier - forced to D/K1 !!!\n" );
+#endif
+ }
+ }
+ }
+ m->c_standard=standard;
+ } /*end - standard changed*/
+ else {
+ if (standard<MSPSTANDARD_NICAM_BG) {
+ /* get old value of ident. mode register*/
+ GetMSP3430Data (m, RD_DSP, 0x00, 0x15, &high, &low);
+ /* reset Ident-Filter */
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x14, 0x00, 0x3F);
+ /* put back old value to ident. mode register*/
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x14, 0x00, low);
+ }
+ }
+
+ if (standard<=MSPSTANDARD_AUTO) {
+ m->c_format=MSPFORMAT_1xFM;
+ }
+ else if (standard<MSPSTANDARD_NICAM_BG) {
+ /* set FM prescale */
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x0e, 0x30, 0);
+ /* set FM deemphasis*/
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x0f, ((standard==MSPSTANDARD_FM_M)?0:1), 0);
+
+ /* check if FM2 carrier is present */
+ /*turn off FM DC Notch*/
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x17, 0x00, 0x3f);
+ /*matrix source for Quasi-Peak Detector - stereo: ch2->L ch1->R*/
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x0c, 0x00, 0x20);
+
+ mpause(250);
+ GetMSP3430Data (m, RD_DSP, 0x00, 0x1A, &high, &low);
+ peak = (high << 8) | low;
+#if __MSPDEBUG__ > 1
+ xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"Second carrier Quasi-Peak detection: %d\n",peak);
+#endif
+ /*turn on FM DC Notch*/
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x17, 0x00, 0x00);
+
+ if (peak<5) {
+ /* if second carrier not detected - only mono from first carrier*/
+ m->c_format=MSPFORMAT_1xFM;
+ }
+ else {
+ m->c_format=MSPFORMAT_2xFM;
+ /*start of FM identification process - FM_WAIT
+ wait at least 0.5s - used 1s - gives beter resolution*/
+ mpause(1000);
+ }
+ }
+ else {
+ if (standard==MSPSTANDARD_NICAM_L) {
+ m->c_format=MSPFORMAT_NICAM_AM;
+ /* set AM prescale */
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x0e, 0x7C, 0);
+ }
+ else {
+ m->c_format=MSPFORMAT_NICAM_FM;
+ /* set FM prescale */
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x0e, 0x30, 0);
+ }
+ /* set FM deemphasis*/
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x0f, 0x00, 0);
+ /* set NICAM prescale to 0dB */
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x10, 0x20, 0);
+ }
+
+ break;
+ } /*end - case conector*/
+
+ CheckModeMSP34x5D(m);
+
+ /* Set volume to FAST_MUTE. */
+ /*SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);*/
+ /*set volume*/
+ MSP3430SetVolume(m,m->volume);
+
+ __MSPBEEP
+
+
+} /* EnableMSP34x5D ()... */
+
+
+
+
+void CheckModeMSP34x5D(MSP3430Ptr m) {
+ const char stereo_on=25;
+ const char stereo_off=20;
+ const char dual_on=-stereo_on;
+ const char dual_off=-stereo_off;
+ char detect;
+ CARD8 matrix, fmmatrix, source, high, low;
+
+ fmmatrix=0; /*no matrix*/
+ source=0; /*FM*/
+ switch (m->c_format) {
+ case MSPFORMAT_NICAM_FM:
+ case MSPFORMAT_NICAM_AM:
+ case MSPFORMAT_SCART:
+ source=( (m->c_format == MSPFORMAT_SCART)?2:1 );
+ switch (m->mode) {
+ case MSPMODE_MONO:
+ matrix=0x30; /*MONO*/
+ break;
+ case MSPMODE_A:
+ matrix=0x00; /*A*/
+ break;
+ case MSPMODE_B:
+ matrix=0x10; /*B*/
+ break;
+ default:
+ matrix=0x20; /*STEREO*/
+ break;
+ }
+ break;
+ default:
+ case MSPFORMAT_1xFM:
+ matrix=0x00; /*A*/
+ break;
+ case MSPFORMAT_2xFM:
+ switch (m->mode) {
+ case MSPMODE_MONO:
+ matrix=0x30; /*MONO*/
+ break;
+ case MSPMODE_STEREO:
+ matrix=0x20; /*STEREO*/
+ fmmatrix=((m->c_standard==MSPSTANDARD_FM_M)?2:1);
+ break;
+ case MSPMODE_AB:
+ matrix=0x20; /*STEREO*/
+ break;
+ case MSPMODE_A:
+ matrix=0x00; /*A*/
+ break;
+ case MSPMODE_B:
+ matrix=0x10; /*B*/
+ break;
+ default:
+ /*FM_IDENT_CHECK*/
+ GetMSP3430Data (m, RD_DSP, 0x00, 0x18, &high, &low);
+ detect=(char)high;
+#if __MSPDEBUG__ > 1
+ xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"Stereo Detection Register: %d\n",detect);
+#endif
+ if (detect>=((m->c_mode==MSPMODE_STEREO)?stereo_off:stereo_on)) {
+ m->c_mode=MSPMODE_STEREO;
+ matrix=0x20; /*STEREO*/
+ fmmatrix=((m->c_standard==MSPSTANDARD_FM_M)?2:1);
+ }
+ else if (detect<=((m->c_mode==MSPMODE_AB)?dual_off:dual_on)) {
+ m->c_mode=MSPMODE_AB;
+ switch (m->mode) {
+ case MSPMODE_STEREO_AB: matrix=0x20; break;
+ case MSPMODE_STEREO_B: matrix=0x10; break;
+ default:
+ case MSPMODE_A: matrix=0x00; break;
+ }
+ }
+ else {
+ m->c_mode=MSPMODE_MONO;
+ matrix=0x30; /*MONO*/
+ }
+ break;
+ } /* end - case mode*/
+ break;
+ }
+
+ if (m->c_fmmatrix != fmmatrix) {
+ GetMSP3430Data (m, RD_DSP, 0x00, 0x0e, &high, &low);
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x0e, high, fmmatrix);
+ m->c_fmmatrix = fmmatrix;
+ }
+
+ if ((m->c_matrix != matrix) || (m->c_source != source)) {
+ /*set chanel source and matrix for loudspeaker*/
+ SetMSP3430Data (m, WR_DSP, 0x00, 0x08, source, matrix);
+
+ m->c_matrix = matrix;
+ m->c_source = source;
+ }
+
+ if ( ((m->c_format) & 0xF0) == MSPFORMAT_NICAM)
+ SetMSP3430Data (m, WR_DEM, 0x00, 0x21, 0, 1);
+
+#if __MSPDEBUG__ > 0
+ char *msg;
+ switch (matrix) {
+ case 0x30: /*MONO*/
+ msg="MONO";
+ break;
+ case 0x00: /*LEFT*/
+ msg="MONO/CHANNEL_1";
+ break;
+ case 0x10: /*RIGHT*/
+ msg="MONO/CHANNEL_2";
+ break;
+ case 0x20: /*LEFT*/
+ msg="STEREO";
+ break;
+ default:
+ msg="unknown";
+ break;
+ }
+ xf86DrvMsg(m->d.pI2CBus->scrnIndex,X_INFO,"Audio mode set to: %s\n",msg);
+#endif
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-11 19:15:22 +0000